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v2.0.0 Add support for ESP32S2 and update ESP-IDF to 4.4 (#4996)

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This is very much still work in progress and much more will change before the final 2.0.0

Some APIs have changed. New libraries have been added. LittleFS included.

Co-authored-by: Seon Rozenblum <seonr@3sprockets.com>
Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>
Co-authored-by: geeksville <kevinh@geeksville.com>
Co-authored-by: Mike Dunston <m_dunston@comcast.net>
Co-authored-by: Unexpected Maker <seon@unexpectedmaker.com>
Co-authored-by: Seon Rozenblum <seonr@3sprockets.com>
Co-authored-by: microDev <70126934+microDev1@users.noreply.github.com>
Co-authored-by: tobozo <tobozo@users.noreply.github.com>
Co-authored-by: bobobo1618 <bobobo1618@users.noreply.github.com>
Co-authored-by: lorol <lorolouis@gmail.com>
Co-authored-by: geeksville <kevinh@geeksville.com>
Co-authored-by: Limor "Ladyada" Fried <limor@ladyada.net>
Co-authored-by: Sweety <switi.mhaiske@espressif.com>
Co-authored-by: Loick MAHIEUX <loick111@gmail.com>
Co-authored-by: Larry Bernstone <lbernstone@gmail.com>
Co-authored-by: Valerii Koval <valeros@users.noreply.github.com>
Co-authored-by: 快乐的我531 <2302004040@qq.com>
Co-authored-by: chegewara <imperiaonline4@gmail.com>
Co-authored-by: Clemens Kirchgatterer <clemens@1541.org>
Co-authored-by: Aron Rubin <aronrubin@gmail.com>
Co-authored-by: Pete Lewis <601236+lewispg228@users.noreply.github.com>
This commit is contained in:
Me No Dev
2021-04-05 14:23:58 +03:00
committed by GitHub
parent 46d5afb17f
commit 5502879a5b
5209 changed files with 826360 additions and 322816 deletions
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94
tools/sdk/esp32/include/lwip/include/apps/dhcpserver/dhcpserver.h Normal file
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __DHCPS_H__
#define __DHCPS_H__
#include "sdkconfig.h"
#include "lwip/ip_addr.h"
typedef struct dhcps_state{
s16_t state;
} dhcps_state;
typedef struct dhcps_msg {
u8_t op, htype, hlen, hops;
u8_t xid[4];
u16_t secs, flags;
u8_t ciaddr[4];
u8_t yiaddr[4];
u8_t siaddr[4];
u8_t giaddr[4];
u8_t chaddr[16];
u8_t sname[64];
u8_t file[128];
u8_t options[312];
}dhcps_msg;
/* Defined in esp_misc.h */
typedef struct {
bool enable;
ip4_addr_t start_ip;
ip4_addr_t end_ip;
} dhcps_lease_t;
enum dhcps_offer_option{
OFFER_START = 0x00,
OFFER_ROUTER = 0x01,
OFFER_DNS = 0x02,
OFFER_END
};
#define DHCPS_COARSE_TIMER_SECS 1
#define DHCPS_MAX_LEASE 0x64
#define DHCPS_LEASE_TIME_DEF (120)
#define DHCPS_LEASE_UNIT CONFIG_LWIP_DHCPS_LEASE_UNIT
struct dhcps_pool{
ip4_addr_t ip;
u8_t mac[6];
u32_t lease_timer;
};
typedef u32_t dhcps_time_t;
typedef u8_t dhcps_offer_t;
typedef struct {
dhcps_offer_t dhcps_offer;
dhcps_offer_t dhcps_dns;
dhcps_time_t dhcps_time;
dhcps_lease_t dhcps_poll;
} dhcps_options_t;
typedef void (*dhcps_cb_t)(u8_t client_ip[4]);
static inline bool dhcps_router_enabled (dhcps_offer_t offer)
{
return (offer & OFFER_ROUTER) != 0;
}
static inline bool dhcps_dns_enabled (dhcps_offer_t offer)
{
return (offer & OFFER_DNS) != 0;
}
void dhcps_start(struct netif *netif, ip4_addr_t ip);
void dhcps_stop(struct netif *netif);
void *dhcps_option_info(u8_t op_id, u32_t opt_len);
void dhcps_set_option_info(u8_t op_id, void *opt_info, u32_t opt_len);
bool dhcp_search_ip_on_mac(u8_t *mac, ip4_addr_t *ip);
void dhcps_dns_setserver(const ip_addr_t *dnsserver);
ip4_addr_t dhcps_dns_getserver(void);
void dhcps_set_new_lease_cb(dhcps_cb_t cb);
#endif

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tools/sdk/esp32/include/lwip/include/apps/dhcpserver/dhcpserver_options.h Normal file
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// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
/** DHCP Options
This macros are not part of the public dhcpserver.h interface.
**/
typedef enum
{
/* RFC 1497 Vendor Extensions */
PAD = 0,
END = 255,
SUBNET_MASK = 1,
TIME_OFFSET = 2,
ROUTER = 3,
TIME_SERVER = 4,
NAME_SERVER = 5,
DOMAIN_NAME_SERVER = 6,
LOG_SERVER = 7,
COOKIE_SERVER = 8,
LPR_SERVER = 9,
IMPRESS_SERVER = 10,
RESOURCE_LOCATION_SERVER = 11,
HOST_NAME = 12,
BOOT_FILE_SIZE = 13,
MERIT_DUMP_FILE = 14,
DOMAIN_NAME = 15,
SWAP_SERVER = 16,
ROOT_PATH = 17,
EXTENSIONS_PATH = 18,
/* IP Layer Parameters per Host */
IP_FORWARDING = 19,
NON_LOCAL_SOURCE_ROUTING = 20,
POLICY_FILTER = 21,
MAXIMUM_DATAGRAM_REASSEMBLY_SIZE = 22,
DEFAULT_IP_TIME_TO_LIVE = 23,
PATH_MTU_AGING_TIMEOUT = 24,
PATH_MTU_PLATEAU_TABLE = 25,
/* IP Layer Parameters per Interface */
INTERFACE_MTU = 26,
ALL_SUBNETS_ARE_LOCAL = 27,
BROADCAST_ADDRESS = 28,
PERFORM_MASK_DISCOVERY = 29,
MASK_SUPPLIER = 30,
PERFORM_ROUTER_DISCOVERY = 31,
ROUTER_SOLICITATION_ADDRESS = 32,
STATIC_ROUTE = 33,
/* Link Layer Parameters per Interface */
TRAILER_ENCAPSULATION = 34,
ARP_CACHE_TIMEOUT = 35,
ETHERNET_ENCAPSULATION = 36,
/* TCP Parameters */
TCP_DEFAULT_TTL = 37,
TCP_KEEPALIVE_INTERVAL = 38,
TCP_KEEPALIVE_GARBAGE = 39,
/* Application and Service Parameters */
NETWORK_INFORMATION_SERVICE_DOMAIN = 40,
NETWORK_INFORMATION_SERVERS = 41,
NETWORK_TIME_PROTOCOL_SERVERS = 42,
VENDOR_SPECIFIC_INFORMATION = 43,
NETBIOS_OVER_TCP_IP_NAME_SERVER = 44,
NETBIOS_OVER_TCP_IP_DATAGRAM_DISTRIBUTION_SERVER = 45,
NETBIOS_OVER_TCP_IP_NODE_TYPE = 46,
NETBIOS_OVER_TCP_IP_SCOPE = 47,
X_WINDOW_SYSTEM_FONT_SERVER = 48,
X_WINDOW_SYSTEM_DISPLAY_MANAGER = 49,
NETWORK_INFORMATION_SERVICE_PLUS_DOMAIN = 64,
NETWORK_INFORMATION_SERVICE_PLUS_SERVERS = 65,
MOBILE_IP_HOME_AGENT = 68,
SMTP_SERVER = 69,
POP3_SERVER = 70,
NNTP_SERVER = 71,
DEFAULT_WWW_SERVER = 72,
DEFAULT_FINGER_SERVER = 73,
DEFAULT_IRC_SERVER = 74,
STREETTALK_SERVER = 75,
STREETTALK_DIRECTORY_ASSISTANCE_SERVER = 76,
/* DHCP Extensions */
REQUESTED_IP_ADDRESS = 50,
IP_ADDRESS_LEASE_TIME = 51,
OPTION_OVERLOAD = 52,
TFTP_SERVER_NAME = 66,
BOOTFILE_NAME = 67,
DHCP_MESSAGE_TYPE = 53,
SERVER_IDENTIFIER = 54,
PARAMETER_REQUEST_LIST = 55,
MESSAGE = 56,
MAXIMUM_DHCP_MESSAGE_SIZE = 57,
RENEWAL_T1_TIME_VALUE = 58,
REBINDING_T2_TIME_VALUE = 59,
VENDOR_CLASS_IDENTIFIER = 60,
CLIENT_IDENTIFIER = 61,
USER_CLASS = 77,
FQDN = 81,
DHCP_AGENT_OPTIONS = 82,
NDS_SERVERS = 85,
NDS_TREE_NAME = 86,
NDS_CONTEXT = 87,
CLIENT_LAST_TRANSACTION_TIME = 91,
ASSOCIATED_IP = 92,
USER_AUTHENTICATION_PROTOCOL = 98,
AUTO_CONFIGURE = 116,
NAME_SERVICE_SEARCH = 117,
SUBNET_SELECTION = 118,
DOMAIN_SEARCH = 119,
CLASSLESS_ROUTE = 121,
} dhcp_msg_option;

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tools/sdk/esp32/include/lwip/include/apps/esp_ping.h Normal file
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef ESP_PING_H_
#define ESP_PING_H_
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
// gen_esp_err_to_name.py: include this as "esp_ping.h" because "components/lwip/include/apps/" is in the compiler path
// and not "components/lwip/include"
#define ESP_ERR_PING_BASE 0xa000
#define ESP_ERR_PING_INVALID_PARAMS ESP_ERR_PING_BASE + 0x01
#define ESP_ERR_PING_NO_MEM ESP_ERR_PING_BASE + 0x02
#define ESP_PING_CHECK_OPTLEN(optlen, opttype) do { if ((optlen) < sizeof(opttype)) { return ESP_ERR_PING_INVALID_PARAMS; }}while(0)
typedef struct _ping_found {
uint32_t resp_time;
uint32_t timeout_count;
uint32_t send_count;
uint32_t recv_count;
uint32_t err_count;
uint32_t bytes;
uint32_t total_bytes;
uint32_t total_time;
uint32_t min_time;
uint32_t max_time;
int8_t ping_err;
} esp_ping_found;
typedef enum {
PING_TARGET_IP_ADDRESS = 50, /**< target IP address */
PING_TARGET_IP_ADDRESS_COUNT = 51, /**< target IP address total counter */
PING_TARGET_RCV_TIMEO = 52, /**< receive timeout in milliseconds */
PING_TARGET_DELAY_TIME = 53, /**< delay time in milliseconds */
PING_TARGET_ID = 54, /**< identifier */
PING_TARGET_RES_FN = 55, /**< ping result callback function */
PING_TARGET_RES_RESET = 56, /**< ping result statistic reset */
PING_TARGET_DATA_LEN = 57, /**< ping data length*/
PING_TARGET_IP_TOS = 58, /**< ping QOS*/
PING_TARGET_IF_INDEX = 59 /**< ping if index*/
} ping_target_id_t;
typedef enum {
PING_RES_TIMEOUT = 0,
PING_RES_OK = 1,
PING_RES_FINISH = 2,
} ping_res_t;
typedef void (* esp_ping_found_fn)(ping_target_id_t found_id, esp_ping_found *found_val);
/**
* @brief Set PING function option
*
* @param[in] opt_id: option index, 50 for IP, 51 for COUNT, 52 for RCV TIMEOUT, 53 for DELAY TIME, 54 for ID
* @param[in] opt_val: option parameter
* @param[in] opt_len: option length
*
* @return
* - ESP_OK
* - ESP_ERR_PING_INVALID_PARAMS
*/
esp_err_t esp_ping_set_target(ping_target_id_t opt_id, void *opt_val, uint32_t opt_len);
/**
* @brief Get PING function option
*
* @param[in] opt_id: option index, 50 for IP, 51 for COUNT, 52 for RCV TIMEOUT, 53 for DELAY TIME, 54 for ID
* @param[in] opt_val: option parameter
* @param[in] opt_len: option length
*
* @return
* - ESP_OK
* - ESP_ERR_PING_INVALID_PARAMS
*/
esp_err_t esp_ping_get_target(ping_target_id_t opt_id, void *opt_val, uint32_t opt_len);
/**
* @brief Get PING function result action
*
* @param[in] res_val: ping function action, 1 for successful, 0 for fail.
* res_len: response bytes
* res_time: response time
*
* @return
* - ESP_OK
* - ESP_ERR_PING_INVALID_PARAMS
*/
esp_err_t esp_ping_result(uint8_t res_val, uint16_t res_len, uint32_t res_time);
#ifdef __cplusplus
}
#endif
#endif /* ESP_PING_H_ */

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tools/sdk/esp32/include/lwip/include/apps/esp_sntp.h Normal file
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// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_SNTP_H__
#define __ESP_SNTP_H__
#include "lwip/err.h"
#include "lwip/apps/sntp.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* The time update takes place in the sntp_sync_time() function.
* The user has the ability to redefine this function in order
* to re-define its functionality. This function has two time update modes,
* which can be set via the sntp_set_sync_mode() function.
* Two modes are available:
* - the first is an immediate update when receiving time from the sntp server,
* - the second is a smooth time update (if the time error is no more than 35 minutes,
* and an immediate update if the error is more than 35 minutes).
*
* To receive notification of time synchronization,
* you can use the callback function or get the synchronization status
* via the sntp_get_sync_status() function.
*
* To determine the time synchronization time on the device, you can use:
* 1) sntp_set_time_sync_notification_cb() function to set the callback function,
* which is convenient to use to receive notification of the update time.
* 2) sntp_get_sync_status() function for getting time synchronization status.
* After the time synchronization is completed, the status will be
* SNTP_SYNC_STATUS_COMPLETED, after, it will be reseted to SNTP_SYNC_STATUS_RESET
* to wait for the next sync cycle.
*/
/// SNTP time update mode
typedef enum {
SNTP_SYNC_MODE_IMMED, /*!< Update system time immediately when receiving a response from the SNTP server. */
SNTP_SYNC_MODE_SMOOTH, /*!< Smooth time updating. Time error is gradually reduced using adjtime function. If the difference between SNTP response time and system time is large (more than 35 minutes) then update immediately. */
} sntp_sync_mode_t;
/// SNTP sync status
typedef enum {
SNTP_SYNC_STATUS_RESET, // Reset status.
SNTP_SYNC_STATUS_COMPLETED, // Time is synchronized.
SNTP_SYNC_STATUS_IN_PROGRESS, // Smooth time sync in progress.
} sntp_sync_status_t;
/**
* @brief SNTP callback function for notifying about time sync event
*
* @param tv Time received from SNTP server.
*/
typedef void (*sntp_sync_time_cb_t) (struct timeval *tv);
/**
* @brief This function updates the system time.
*
* This is a weak-linked function. It is possible to replace all SNTP update functionality
* by placing a sntp_sync_time() function in the app firmware source.
* If the default implementation is used, calling sntp_set_sync_mode() allows
* the time synchronization mode to be changed to instant or smooth.
* If a callback function is registered via sntp_set_time_sync_notification_cb(),
* it will be called following time synchronization.
*
* @param tv Time received from SNTP server.
*/
void sntp_sync_time(struct timeval *tv);
/**
* @brief Set the sync mode
*
* Allowable two mode: SNTP_SYNC_MODE_IMMED and SNTP_SYNC_MODE_SMOOTH.
* @param sync_mode Sync mode.
*/
void sntp_set_sync_mode(sntp_sync_mode_t sync_mode);
/**
* @brief Get set sync mode
*
* @return SNTP_SYNC_MODE_IMMED: Update time immediately.
* SNTP_SYNC_MODE_SMOOTH: Smooth time updating.
*/
sntp_sync_mode_t sntp_get_sync_mode(void);
/**
* @brief Get status of time sync
*
* After the update is completed, the status will be returned as SNTP_SYNC_STATUS_COMPLETED.
* After that, the status will be reset to SNTP_SYNC_STATUS_RESET.
* If the update operation is not completed yet, the status will be SNTP_SYNC_STATUS_RESET.
* If a smooth mode was chosen and the synchronization is still continuing (adjtime works), then it will be SNTP_SYNC_STATUS_IN_PROGRESS.
*
* @return SNTP_SYNC_STATUS_RESET: Reset status.
* SNTP_SYNC_STATUS_COMPLETED: Time is synchronized.
* SNTP_SYNC_STATUS_IN_PROGRESS: Smooth time sync in progress.
*/
sntp_sync_status_t sntp_get_sync_status(void);
/**
* @brief Set status of time sync
*
* @param sync_status status of time sync (see sntp_sync_status_t)
*/
void sntp_set_sync_status(sntp_sync_status_t sync_status);
/**
* @brief Set a callback function for time synchronization notification
*
* @param callback a callback function
*/
void sntp_set_time_sync_notification_cb(sntp_sync_time_cb_t callback);
/**
* @brief Set the sync interval of SNTP operation
*
* Note: SNTPv4 RFC 4330 enforces a minimum sync interval of 15 seconds.
* This sync interval will be used in the next attempt update time throught SNTP.
* To apply the new sync interval call the sntp_restart() function,
* otherwise, it will be applied after the last interval expired.
*
* @param interval_ms The sync interval in ms. It cannot be lower than 15 seconds, otherwise 15 seconds will be set.
*/
void sntp_set_sync_interval(uint32_t interval_ms);
/**
* @brief Get the sync interval of SNTP operation
*
* @return the sync interval
*/
uint32_t sntp_get_sync_interval(void);
/**
* @brief Restart SNTP
*
* @return True - Restart
* False - SNTP was not initialized yet
*/
bool sntp_restart(void);
#ifdef __cplusplus
}
#endif
#endif // __ESP_SNTP_H__

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tools/sdk/esp32/include/lwip/include/apps/ping/ping.h Normal file
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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#ifndef LWIP_PING_H
#define LWIP_PING_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* PING_USE_SOCKETS: Set to 1 to use sockets, otherwise the raw api is used
*/
#ifndef PING_USE_SOCKETS
#define PING_USE_SOCKETS LWIP_SOCKET
#endif
int ping_init(void) __attribute__ ((deprecated));
#ifdef ESP_PING
void ping_deinit(void) __attribute__ ((deprecated));
#endif
#if !PING_USE_SOCKETS
void ping_send_now(void);
#endif /* !PING_USE_SOCKETS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_PING_H */

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tools/sdk/esp32/include/lwip/include/apps/ping/ping_sock.h Normal file
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// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include "esp_err.h"
#include "lwip/ip_addr.h"
/**
* @brief Type of "ping" session handle
*
*/
typedef void *esp_ping_handle_t;
/**
* @brief Type of "ping" callback functions
*
*/
typedef struct {
/**
* @brief arguments for callback functions
*
*/
void *cb_args;
/**
* @brief Invoked by internal ping thread when received ICMP echo reply packet
*
*/
void (*on_ping_success)(esp_ping_handle_t hdl, void *args);
/**
* @brief Invoked by internal ping thread when receive ICMP echo reply packet timeout
*
*/
void (*on_ping_timeout)(esp_ping_handle_t hdl, void *args);
/**
* @brief Invoked by internal ping thread when a ping session is finished
*
*/
void (*on_ping_end)(esp_ping_handle_t hdl, void *args);
} esp_ping_callbacks_t;
/**
* @brief Type of "ping" configuration
*
*/
typedef struct {
uint32_t count; /*!< A "ping" session contains count procedures */
uint32_t interval_ms; /*!< Milliseconds between each ping procedure */
uint32_t timeout_ms; /*!< Timeout value (in milliseconds) of each ping procedure */
uint32_t data_size; /*!< Size of the data next to ICMP packet header */
uint8_t tos; /*!< Type of Service, a field specified in the IP header */
ip_addr_t target_addr; /*!< Target IP address, either IPv4 or IPv6 */
uint32_t task_stack_size; /*!< Stack size of internal ping task */
uint32_t task_prio; /*!< Priority of internal ping task */
uint32_t interface; /*!< Netif index, interface=0 means NETIF_NO_INDEX*/
} esp_ping_config_t;
/**
* @brief Default ping configuration
*
*/
#define ESP_PING_DEFAULT_CONFIG() \
{ \
.count = 5, \
.interval_ms = 1000, \
.timeout_ms = 1000, \
.data_size = 64, \
.tos = 0, \
.target_addr = *(IP_ANY_TYPE), \
.task_stack_size = 2048, \
.task_prio = 2, \
.interface = 0,\
}
#define ESP_PING_COUNT_INFINITE (0) /*!< Set ping count to zero will ping target infinitely */
/**
* @brief Profile of ping session
*
*/
typedef enum {
ESP_PING_PROF_SEQNO, /*!< Sequence number of a ping procedure */
ESP_PING_PROF_TTL, /*!< Time to live of a ping procedure */
ESP_PING_PROF_REQUEST, /*!< Number of request packets sent out */
ESP_PING_PROF_REPLY, /*!< Number of reply packets received */
ESP_PING_PROF_IPADDR, /*!< IP address of replied target */
ESP_PING_PROF_SIZE, /*!< Size of received packet */
ESP_PING_PROF_TIMEGAP, /*!< Elapsed time between request and reply packet */
ESP_PING_PROF_DURATION /*!< Elapsed time of the whole ping session */
} esp_ping_profile_t;
/**
* @brief Create a ping session
*
* @param config ping configuration
* @param cbs a bunch of callback functions invoked by internal ping task
* @param hdl_out handle of ping session
* @return
* - ESP_ERR_INVALID_ARG: invalid parameters (e.g. configuration is null, etc)
* - ESP_ERR_NO_MEM: out of memory
* - ESP_FAIL: other internal error (e.g. socket error)
* - ESP_OK: create ping session successfully, user can take the ping handle to do follow-on jobs
*/
esp_err_t esp_ping_new_session(const esp_ping_config_t *config, const esp_ping_callbacks_t *cbs, esp_ping_handle_t *hdl_out);
/**
* @brief Delete a ping session
*
* @param hdl handle of ping session
* @return
* - ESP_ERR_INVALID_ARG: invalid parameters (e.g. ping handle is null, etc)
* - ESP_OK: delete ping session successfully
*/
esp_err_t esp_ping_delete_session(esp_ping_handle_t hdl);
/**
* @brief Start the ping session
*
* @param hdl handle of ping session
* @return
* - ESP_ERR_INVALID_ARG: invalid parameters (e.g. ping handle is null, etc)
* - ESP_OK: start ping session successfully
*/
esp_err_t esp_ping_start(esp_ping_handle_t hdl);
/**
* @brief Stop the ping session
*
* @param hdl handle of ping session
* @return
* - ESP_ERR_INVALID_ARG: invalid parameters (e.g. ping handle is null, etc)
* - ESP_OK: stop ping session successfully
*/
esp_err_t esp_ping_stop(esp_ping_handle_t hdl);
/**
* @brief Get runtime profile of ping session
*
* @param hdl handle of ping session
* @param profile type of profile
* @param data profile data
* @param size profile data size
* @return
* - ESP_ERR_INVALID_ARG: invalid parameters (e.g. ping handle is null, etc)
* - ESP_ERR_INVALID_SIZE: the actual profile data size doesn't match the "size" parameter
* - ESP_OK: get profile successfully
*/
esp_err_t esp_ping_get_profile(esp_ping_handle_t hdl, esp_ping_profile_t profile, void *data, uint32_t size);
#ifdef __cplusplus
}
#endif

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// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __SNTP_H__
#define __SNTP_H__
/*
* This header is provided only for compatibility reasons for existing
* applications which directly include "sntp.h" from the IDF default paths.
* and will be removed in IDF v5.0.
* It is recommended to use "esp_sntp.h" from IDF's lwip port folder
*/
#include "esp_sntp.h"
#endif // __SNTP_H__

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/**
* @file
* This file is a posix wrapper for lwip/sockets.h.
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#include "lwip/sockets.h"

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/**
* @file
* This file is a posix wrapper for lwip/if_api.h.
*/
/*
* Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. <joel.cunningham@garmin.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#include "lwip/if_api.h"

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/**
* @file
* This file is a posix wrapper for lwip/netdb.h.
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#include "lwip/netdb.h"

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/**
* @file
* This file is a posix wrapper for lwip/sockets.h.
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#include "lwip/sockets.h"

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/**
* @file
* This file is a posix/stdc wrapper for lwip/errno.h.
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#include "lwip/errno.h"

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/**
* @file
* Application layered TCP connection API (to be used from TCPIP thread)\n
*
* This file contains the generic API.
* For more details see @ref altcp_api.
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_H
#define LWIP_HDR_ALTCP_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/tcpbase.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
struct altcp_pcb;
struct altcp_functions;
typedef err_t (*altcp_accept_fn)(void *arg, struct altcp_pcb *new_conn, err_t err);
typedef err_t (*altcp_connected_fn)(void *arg, struct altcp_pcb *conn, err_t err);
typedef err_t (*altcp_recv_fn)(void *arg, struct altcp_pcb *conn, struct pbuf *p, err_t err);
typedef err_t (*altcp_sent_fn)(void *arg, struct altcp_pcb *conn, u16_t len);
typedef err_t (*altcp_poll_fn)(void *arg, struct altcp_pcb *conn);
typedef void (*altcp_err_fn)(void *arg, err_t err);
typedef struct altcp_pcb* (*altcp_new_fn)(void *arg, u8_t ip_type);
struct altcp_pcb {
const struct altcp_functions *fns;
struct altcp_pcb *inner_conn;
void *arg;
void *state;
/* application callbacks */
altcp_accept_fn accept;
altcp_connected_fn connected;
altcp_recv_fn recv;
altcp_sent_fn sent;
altcp_poll_fn poll;
altcp_err_fn err;
u8_t pollinterval;
};
/** @ingroup altcp */
typedef struct altcp_allocator_s {
/** Allocator function */
altcp_new_fn alloc;
/** Argument to allocator function */
void *arg;
} altcp_allocator_t;
struct altcp_pcb *altcp_new(altcp_allocator_t *allocator);
struct altcp_pcb *altcp_new_ip6(altcp_allocator_t *allocator);
struct altcp_pcb *altcp_new_ip_type(altcp_allocator_t *allocator, u8_t ip_type);
void altcp_arg(struct altcp_pcb *conn, void *arg);
void altcp_accept(struct altcp_pcb *conn, altcp_accept_fn accept);
void altcp_recv(struct altcp_pcb *conn, altcp_recv_fn recv);
void altcp_sent(struct altcp_pcb *conn, altcp_sent_fn sent);
void altcp_poll(struct altcp_pcb *conn, altcp_poll_fn poll, u8_t interval);
void altcp_err(struct altcp_pcb *conn, altcp_err_fn err);
void altcp_recved(struct altcp_pcb *conn, u16_t len);
err_t altcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
err_t altcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected);
/* return conn for source code compatibility to tcp callback API only */
struct altcp_pcb *altcp_listen_with_backlog_and_err(struct altcp_pcb *conn, u8_t backlog, err_t *err);
#define altcp_listen_with_backlog(conn, backlog) altcp_listen_with_backlog_and_err(conn, backlog, NULL)
/** @ingroup altcp */
#define altcp_listen(conn) altcp_listen_with_backlog_and_err(conn, TCP_DEFAULT_LISTEN_BACKLOG, NULL)
void altcp_abort(struct altcp_pcb *conn);
err_t altcp_close(struct altcp_pcb *conn);
err_t altcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx);
err_t altcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
err_t altcp_output(struct altcp_pcb *conn);
u16_t altcp_mss(struct altcp_pcb *conn);
u16_t altcp_sndbuf(struct altcp_pcb *conn);
u16_t altcp_sndqueuelen(struct altcp_pcb *conn);
void altcp_nagle_disable(struct altcp_pcb *conn);
void altcp_nagle_enable(struct altcp_pcb *conn);
int altcp_nagle_disabled(struct altcp_pcb *conn);
void altcp_setprio(struct altcp_pcb *conn, u8_t prio);
err_t altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
ip_addr_t *altcp_get_ip(struct altcp_pcb *conn, int local);
u16_t altcp_get_port(struct altcp_pcb *conn, int local);
#if LWIP_TCP_KEEPALIVE
void altcp_keepalive_disable(struct altcp_pcb *conn);
void altcp_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count);
#endif
#ifdef LWIP_DEBUG
enum tcp_state altcp_dbg_get_tcp_state(struct altcp_pcb *conn);
#endif
#ifdef __cplusplus
}
#endif
#else /* LWIP_ALTCP */
/* ALTCP disabled, define everything to link against tcp callback API (e.g. to get a small non-ssl httpd) */
#include "lwip/tcp.h"
#define altcp_accept_fn tcp_accept_fn
#define altcp_connected_fn tcp_connected_fn
#define altcp_recv_fn tcp_recv_fn
#define altcp_sent_fn tcp_sent_fn
#define altcp_poll_fn tcp_poll_fn
#define altcp_err_fn tcp_err_fn
#define altcp_pcb tcp_pcb
#define altcp_tcp_new_ip_type tcp_new_ip_type
#define altcp_tcp_new tcp_new
#define altcp_tcp_new_ip6 tcp_new_ip6
#define altcp_new(allocator) tcp_new()
#define altcp_new_ip6(allocator) tcp_new_ip6()
#define altcp_new_ip_type(allocator, ip_type) tcp_new_ip_type(ip_type)
#define altcp_arg tcp_arg
#define altcp_accept tcp_accept
#define altcp_recv tcp_recv
#define altcp_sent tcp_sent
#define altcp_poll tcp_poll
#define altcp_err tcp_err
#define altcp_recved tcp_recved
#define altcp_bind tcp_bind
#define altcp_connect tcp_connect
#define altcp_listen_with_backlog_and_err tcp_listen_with_backlog_and_err
#define altcp_listen_with_backlog tcp_listen_with_backlog
#define altcp_listen tcp_listen
#define altcp_abort tcp_abort
#define altcp_close tcp_close
#define altcp_shutdown tcp_shutdown
#define altcp_write tcp_write
#define altcp_output tcp_output
#define altcp_mss tcp_mss
#define altcp_sndbuf tcp_sndbuf
#define altcp_sndqueuelen tcp_sndqueuelen
#define altcp_nagle_disable tcp_nagle_disable
#define altcp_nagle_enable tcp_nagle_enable
#define altcp_nagle_disabled tcp_nagle_disabled
#define altcp_setprio tcp_setprio
#define altcp_get_tcp_addrinfo tcp_get_tcp_addrinfo
#define altcp_get_ip(pcb, local) ((local) ? (&(pcb)->local_ip) : (&(pcb)->remote_ip))
#ifdef LWIP_DEBUG
#define altcp_dbg_get_tcp_state tcp_dbg_get_tcp_state
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_H */

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/**
* @file
* Application layered TCP connection API (to be used from TCPIP thread)\n
* This interface mimics the tcp callback API to the application while preventing
* direct linking (much like virtual functions).
* This way, an application can make use of other application layer protocols
* on top of TCP without knowing the details (e.g. TLS, proxy connection).
*
* This file contains the base implementation calling into tcp.
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_TCP_H
#define LWIP_HDR_ALTCP_TCP_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/altcp.h"
#ifdef __cplusplus
extern "C" {
#endif
struct altcp_pcb *altcp_tcp_new_ip_type(u8_t ip_type);
#define altcp_tcp_new() altcp_tcp_new_ip_type(IPADDR_TYPE_V4)
#define altcp_tcp_new_ip6() altcp_tcp_new_ip_type(IPADDR_TYPE_V6)
struct altcp_pcb *altcp_tcp_alloc(void *arg, u8_t ip_type);
struct tcp_pcb;
struct altcp_pcb *altcp_tcp_wrap(struct tcp_pcb *tpcb);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_TCP_H */

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/**
* @file
* Application layered TCP/TLS connection API (to be used from TCPIP thread)
*
* @defgroup altcp_tls TLS layer
* @ingroup altcp
* This file contains function prototypes for a TLS layer.
* A port to ARM mbedtls is provided in the apps/ tree
* (LWIP_ALTCP_TLS_MBEDTLS option).
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_TLS_H
#define LWIP_HDR_ALTCP_TLS_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#if LWIP_ALTCP_TLS
#include "lwip/altcp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @ingroup altcp_tls
* ALTCP_TLS configuration handle, content depends on port (e.g. mbedtls)
*/
struct altcp_tls_config;
/** @ingroup altcp_tls
* Create an ALTCP_TLS server configuration handle prepared for multiple certificates
*/
struct altcp_tls_config *altcp_tls_create_config_server(uint8_t cert_count);
/** @ingroup altcp_tls
* Add a certificate to an ALTCP_TLS server configuration handle
*/
err_t altcp_tls_config_server_add_privkey_cert(struct altcp_tls_config *config,
const u8_t *privkey, size_t privkey_len,
const u8_t *privkey_pass, size_t privkey_pass_len,
const u8_t *cert, size_t cert_len);
/** @ingroup altcp_tls
* Create an ALTCP_TLS server configuration handle with one certificate
* (short version of calling @ref altcp_tls_create_config_server and
* @ref altcp_tls_config_server_add_privkey_cert)
*/
struct altcp_tls_config *altcp_tls_create_config_server_privkey_cert(const u8_t *privkey, size_t privkey_len,
const u8_t *privkey_pass, size_t privkey_pass_len,
const u8_t *cert, size_t cert_len);
/** @ingroup altcp_tls
* Create an ALTCP_TLS client configuration handle
*/
struct altcp_tls_config *altcp_tls_create_config_client(const u8_t *cert, size_t cert_len);
/** @ingroup altcp_tls
* Create an ALTCP_TLS client configuration handle with two-way server/client authentication
*/
struct altcp_tls_config *altcp_tls_create_config_client_2wayauth(const u8_t *ca, size_t ca_len, const u8_t *privkey, size_t privkey_len,
const u8_t *privkey_pass, size_t privkey_pass_len,
const u8_t *cert, size_t cert_len);
/** @ingroup altcp_tls
* Free an ALTCP_TLS configuration handle
*/
void altcp_tls_free_config(struct altcp_tls_config *conf);
/** @ingroup altcp_tls
* Free an ALTCP_TLS global entropy instance.
* All ALTCP_TLS configuration are linked to one altcp_tls_entropy_rng structure
* that handle an unique system entropy & ctr_drbg instance.
* This function allow application to free this altcp_tls_entropy_rng structure
* when all configuration referencing it were destroyed.
* This function does nothing if some ALTCP_TLS configuration handle are still
* active.
*/
void altcp_tls_free_entropy(void);
/** @ingroup altcp_tls
* Create new ALTCP_TLS layer wrapping an existing pcb as inner connection (e.g. TLS over TCP)
*/
struct altcp_pcb *altcp_tls_wrap(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb);
/** @ingroup altcp_tls
* Create new ALTCP_TLS pcb and its inner tcp pcb
*/
struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type);
/** @ingroup altcp_tls
* Create new ALTCP_TLS layer pcb and its inner tcp pcb.
* Same as @ref altcp_tls_new but this allocator function fits to
* @ref altcp_allocator_t / @ref altcp_new.\n
'arg' must contain a struct altcp_tls_config *.
*/
struct altcp_pcb *altcp_tls_alloc(void *arg, u8_t ip_type);
/** @ingroup altcp_tls
* Return pointer to internal TLS context so application can tweak it.
* Real type depends on port (e.g. mbedtls)
*/
void *altcp_tls_context(struct altcp_pcb *conn);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_ALTCP_TLS */
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_TLS_H */

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/**
* @file
* netconn API (to be used from non-TCPIP threads)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_API_H
#define LWIP_HDR_API_H
#include "lwip/opt.h"
#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
/* Note: Netconn API is always available when sockets are enabled -
* sockets are implemented on top of them */
#include "lwip/arch.h"
#include "lwip/netbuf.h"
#include "lwip/sys.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Throughout this file, IP addresses and port numbers are expected to be in
* the same byte order as in the corresponding pcb.
*/
/* Flags for netconn_write (u8_t) */
#define NETCONN_NOFLAG 0x00
#define NETCONN_NOCOPY 0x00 /* Only for source code compatibility */
#define NETCONN_COPY 0x01
#define NETCONN_MORE 0x02
#define NETCONN_DONTBLOCK 0x04
#define NETCONN_NOAUTORCVD 0x08 /* prevent netconn_recv_data_tcp() from updating the tcp window - must be done manually via netconn_tcp_recvd() */
#define NETCONN_NOFIN 0x10 /* upper layer already received data, leave FIN in queue until called again */
/* Flags for struct netconn.flags (u8_t) */
/** This netconn had an error, don't block on recvmbox/acceptmbox any more */
#define NETCONN_FLAG_MBOXCLOSED 0x01
/** Should this netconn avoid blocking? */
#define NETCONN_FLAG_NON_BLOCKING 0x02
/** Was the last connect action a non-blocking one? */
#define NETCONN_FLAG_IN_NONBLOCKING_CONNECT 0x04
#if LWIP_NETCONN_FULLDUPLEX
/** The mbox of this netconn is being deallocated, don't use it anymore */
#define NETCONN_FLAG_MBOXINVALID 0x08
#endif /* LWIP_NETCONN_FULLDUPLEX */
/** If a nonblocking write has been rejected before, poll_tcp needs to
check if the netconn is writable again */
#define NETCONN_FLAG_CHECK_WRITESPACE 0x10
#if LWIP_IPV6
/** If this flag is set then only IPv6 communication is allowed on the
netconn. As per RFC#3493 this features defaults to OFF allowing
dual-stack usage by default. */
#define NETCONN_FLAG_IPV6_V6ONLY 0x20
#endif /* LWIP_IPV6 */
#if LWIP_NETBUF_RECVINFO
/** Received packet info will be recorded for this netconn */
#define NETCONN_FLAG_PKTINFO 0x40
#endif /* LWIP_NETBUF_RECVINFO */
/** A FIN has been received but not passed to the application yet */
#define NETCONN_FIN_RX_PENDING 0x80
/* Helpers to process several netconn_types by the same code */
#define NETCONNTYPE_GROUP(t) ((t)&0xF0)
#define NETCONNTYPE_DATAGRAM(t) ((t)&0xE0)
#if LWIP_IPV6
#define NETCONN_TYPE_IPV6 0x08
#define NETCONNTYPE_ISIPV6(t) (((t)&NETCONN_TYPE_IPV6) != 0)
#define NETCONNTYPE_ISUDPLITE(t) (((t)&0xF3) == NETCONN_UDPLITE)
#define NETCONNTYPE_ISUDPNOCHKSUM(t) (((t)&0xF3) == NETCONN_UDPNOCHKSUM)
#else /* LWIP_IPV6 */
#define NETCONNTYPE_ISIPV6(t) (0)
#define NETCONNTYPE_ISUDPLITE(t) ((t) == NETCONN_UDPLITE)
#define NETCONNTYPE_ISUDPNOCHKSUM(t) ((t) == NETCONN_UDPNOCHKSUM)
#endif /* LWIP_IPV6 */
/** @ingroup netconn_common
* Protocol family and type of the netconn
*/
enum netconn_type {
NETCONN_INVALID = 0,
/** TCP IPv4 */
NETCONN_TCP = 0x10,
#if LWIP_IPV6
/** TCP IPv6 */
NETCONN_TCP_IPV6 = NETCONN_TCP | NETCONN_TYPE_IPV6 /* 0x18 */,
#endif /* LWIP_IPV6 */
/** UDP IPv4 */
NETCONN_UDP = 0x20,
/** UDP IPv4 lite */
NETCONN_UDPLITE = 0x21,
/** UDP IPv4 no checksum */
NETCONN_UDPNOCHKSUM = 0x22,
#if LWIP_IPV6
/** UDP IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */
NETCONN_UDP_IPV6 = NETCONN_UDP | NETCONN_TYPE_IPV6 /* 0x28 */,
/** UDP IPv6 lite (dual-stack by default, unless you call @ref netconn_set_ipv6only) */
NETCONN_UDPLITE_IPV6 = NETCONN_UDPLITE | NETCONN_TYPE_IPV6 /* 0x29 */,
/** UDP IPv6 no checksum (dual-stack by default, unless you call @ref netconn_set_ipv6only) */
NETCONN_UDPNOCHKSUM_IPV6 = NETCONN_UDPNOCHKSUM | NETCONN_TYPE_IPV6 /* 0x2a */,
#endif /* LWIP_IPV6 */
/** Raw connection IPv4 */
NETCONN_RAW = 0x40
#if LWIP_IPV6
/** Raw connection IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */
, NETCONN_RAW_IPV6 = NETCONN_RAW | NETCONN_TYPE_IPV6 /* 0x48 */
#endif /* LWIP_IPV6 */
};
/** Current state of the netconn. Non-TCP netconns are always
* in state NETCONN_NONE! */
enum netconn_state {
NETCONN_NONE,
NETCONN_WRITE,
NETCONN_LISTEN,
NETCONN_CONNECT,
NETCONN_CLOSE
};
/** Used to inform the callback function about changes
*
* Event explanation:
*
* In the netconn implementation, there are three ways to block a client:
*
* - accept mbox (sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, 0); in netconn_accept())
* - receive mbox (sys_arch_mbox_fetch(&conn->recvmbox, &buf, 0); in netconn_recv_data())
* - send queue is full (sys_arch_sem_wait(LWIP_API_MSG_SEM(msg), 0); in lwip_netconn_do_write())
*
* The events have to be seen as events signaling the state of these mboxes/semaphores. For non-blocking
* connections, you need to know in advance whether a call to a netconn function call would block or not,
* and these events tell you about that.
*
* RCVPLUS events say: Safe to perform a potentially blocking call call once more.
* They are counted in sockets - three RCVPLUS events for accept mbox means you are safe
* to call netconn_accept 3 times without being blocked.
* Same thing for receive mbox.
*
* RCVMINUS events say: Your call to to a possibly blocking function is "acknowledged".
* Socket implementation decrements the counter.
*
* For TX, there is no need to count, its merely a flag. SENDPLUS means you may send something.
* SENDPLUS occurs when enough data was delivered to peer so netconn_send() can be called again.
* A SENDMINUS event occurs when the next call to a netconn_send() would be blocking.
*/
enum netconn_evt {
NETCONN_EVT_RCVPLUS,
NETCONN_EVT_RCVMINUS,
NETCONN_EVT_SENDPLUS,
NETCONN_EVT_SENDMINUS,
NETCONN_EVT_ERROR
};
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
/** Used for netconn_join_leave_group() */
enum netconn_igmp {
NETCONN_JOIN,
NETCONN_LEAVE
};
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS
/* Used for netconn_gethostbyname_addrtype(), these should match the DNS_ADDRTYPE defines in dns.h */
#define NETCONN_DNS_DEFAULT NETCONN_DNS_IPV4_IPV6
#define NETCONN_DNS_IPV4 0
#define NETCONN_DNS_IPV6 1
#define NETCONN_DNS_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */
#define NETCONN_DNS_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */
#endif /* LWIP_DNS */
/* forward-declare some structs to avoid to include their headers */
struct ip_pcb;
struct tcp_pcb;
struct udp_pcb;
struct raw_pcb;
struct netconn;
struct api_msg;
/** A callback prototype to inform about events for a netconn */
typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len);
/** A netconn descriptor */
struct netconn {
/** type of the netconn (TCP, UDP or RAW) */
enum netconn_type type;
/** current state of the netconn */
enum netconn_state state;
/** the lwIP internal protocol control block */
union {
struct ip_pcb *ip;
struct tcp_pcb *tcp;
struct udp_pcb *udp;
struct raw_pcb *raw;
} pcb;
/** the last asynchronous unreported error this netconn had */
err_t pending_err;
#if !LWIP_NETCONN_SEM_PER_THREAD
/** sem that is used to synchronously execute functions in the core context */
sys_sem_t op_completed;
#endif
/** mbox where received packets are stored until they are fetched
by the netconn application thread (can grow quite big) */
sys_mbox_t recvmbox;
#if LWIP_TCP
/** mbox where new connections are stored until processed
by the application thread */
sys_mbox_t acceptmbox;
#if ESP_THREAD_PROTECTION
bool write_protection;
#endif /* ESP_THREAD_PROTECTION */
#endif /* LWIP_TCP */
#if LWIP_NETCONN_FULLDUPLEX
/** number of threads waiting on an mbox. This is required to unblock
all threads when closing while threads are waiting. */
int mbox_threads_waiting;
#endif
/** only used for socket layer */
#if LWIP_SOCKET
int socket;
#endif /* LWIP_SOCKET */
#if LWIP_SO_SNDTIMEO
/** timeout to wait for sending data (which means enqueueing data for sending
in internal buffers) in milliseconds */
s32_t send_timeout;
#endif /* LWIP_SO_RCVTIMEO */
#if LWIP_SO_RCVTIMEO
/** timeout in milliseconds to wait for new data to be received
(or connections to arrive for listening netconns) */
u32_t recv_timeout;
#endif /* LWIP_SO_RCVTIMEO */
#if LWIP_SO_RCVBUF
/** maximum amount of bytes queued in recvmbox
not used for TCP: adjust TCP_WND instead! */
int recv_bufsize;
/** number of bytes currently in recvmbox to be received,
tested against recv_bufsize to limit bytes on recvmbox
for UDP and RAW, used for FIONREAD */
int recv_avail;
#endif /* LWIP_SO_RCVBUF */
#if LWIP_SO_LINGER
/** values <0 mean linger is disabled, values > 0 are seconds to linger */
s16_t linger;
#endif /* LWIP_SO_LINGER */
/** flags holding more netconn-internal state, see NETCONN_FLAG_* defines */
u8_t flags;
#if LWIP_TCP
/** TCP: when data passed to netconn_write doesn't fit into the send buffer,
this temporarily stores the message.
Also used during connect and close. */
struct api_msg *current_msg;
#endif /* LWIP_TCP */
/** A callback function that is informed about events for this netconn */
netconn_callback callback;
};
/** This vector type is passed to @ref netconn_write_vectors_partly to send
* multiple buffers at once.
* ATTENTION: This type has to directly map struct iovec since one is casted
* into the other!
*/
struct netvector {
/** pointer to the application buffer that contains the data to send */
const void *ptr;
/** size of the application data to send */
size_t len;
};
/** Register an Network connection event */
#define API_EVENT(c,e,l) if (c->callback) { \
(*c->callback)(c, e, l); \
}
/* Network connection functions: */
/** @ingroup netconn_common
* Create new netconn connection
* @param t @ref netconn_type */
#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL)
#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c)
struct netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto,
netconn_callback callback);
err_t netconn_prepare_delete(struct netconn *conn);
err_t netconn_delete(struct netconn *conn);
/** Get the type of a netconn (as enum netconn_type). */
#define netconn_type(conn) (conn->type)
err_t netconn_getaddr(struct netconn *conn, ip_addr_t *addr,
u16_t *port, u8_t local);
/** @ingroup netconn_common */
#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0)
/** @ingroup netconn_common */
#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1)
err_t netconn_bind(struct netconn *conn, const ip_addr_t *addr, u16_t port);
err_t netconn_bind_if(struct netconn *conn, u8_t if_idx);
err_t netconn_connect(struct netconn *conn, const ip_addr_t *addr, u16_t port);
err_t netconn_disconnect (struct netconn *conn);
err_t netconn_listen_with_backlog(struct netconn *conn, u8_t backlog);
/** @ingroup netconn_tcp */
#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG)
err_t netconn_accept(struct netconn *conn, struct netconn **new_conn);
err_t netconn_recv(struct netconn *conn, struct netbuf **new_buf);
err_t netconn_recv_udp_raw_netbuf(struct netconn *conn, struct netbuf **new_buf);
err_t netconn_recv_udp_raw_netbuf_flags(struct netconn *conn, struct netbuf **new_buf, u8_t apiflags);
err_t netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf);
err_t netconn_recv_tcp_pbuf_flags(struct netconn *conn, struct pbuf **new_buf, u8_t apiflags);
err_t netconn_tcp_recvd(struct netconn *conn, size_t len);
err_t netconn_sendto(struct netconn *conn, struct netbuf *buf,
const ip_addr_t *addr, u16_t port);
err_t netconn_send(struct netconn *conn, struct netbuf *buf);
err_t netconn_write_partly(struct netconn *conn, const void *dataptr, size_t size,
u8_t apiflags, size_t *bytes_written);
err_t netconn_write_vectors_partly(struct netconn *conn, struct netvector *vectors, u16_t vectorcnt,
u8_t apiflags, size_t *bytes_written);
/** @ingroup netconn_tcp */
#define netconn_write(conn, dataptr, size, apiflags) \
netconn_write_partly(conn, dataptr, size, apiflags, NULL)
err_t netconn_close(struct netconn *conn);
err_t netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx);
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
err_t netconn_join_leave_group(struct netconn *conn, const ip_addr_t *multiaddr,
const ip_addr_t *netif_addr, enum netconn_igmp join_or_leave);
err_t netconn_join_leave_group_netif(struct netconn *conn, const ip_addr_t *multiaddr,
u8_t if_idx, enum netconn_igmp join_or_leave);
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS
#if LWIP_IPV4 && LWIP_IPV6
err_t netconn_gethostbyname_addrtype(const char *name, ip_addr_t *addr, u8_t dns_addrtype);
#define netconn_gethostbyname(name, addr) netconn_gethostbyname_addrtype(name, addr, NETCONN_DNS_DEFAULT)
#else /* LWIP_IPV4 && LWIP_IPV6 */
err_t netconn_gethostbyname(const char *name, ip_addr_t *addr);
#define netconn_gethostbyname_addrtype(name, addr, dns_addrtype) netconn_gethostbyname(name, addr)
#endif /* LWIP_IPV4 && LWIP_IPV6 */
#endif /* LWIP_DNS */
err_t netconn_err(struct netconn *conn);
#define netconn_recv_bufsize(conn) ((conn)->recv_bufsize)
#define netconn_set_flags(conn, set_flags) do { (conn)->flags = (u8_t)((conn)->flags | (set_flags)); } while(0)
#define netconn_clear_flags(conn, clr_flags) do { (conn)->flags = (u8_t)((conn)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0)
#define netconn_is_flag_set(conn, flag) (((conn)->flags & (flag)) != 0)
/** Set the blocking status of netconn calls (@todo: write/send is missing) */
#define netconn_set_nonblocking(conn, val) do { if(val) { \
netconn_set_flags(conn, NETCONN_FLAG_NON_BLOCKING); \
} else { \
netconn_clear_flags(conn, NETCONN_FLAG_NON_BLOCKING); }} while(0)
/** Get the blocking status of netconn calls (@todo: write/send is missing) */
#define netconn_is_nonblocking(conn) (((conn)->flags & NETCONN_FLAG_NON_BLOCKING) != 0)
#if LWIP_IPV6
/** @ingroup netconn_common
* TCP: Set the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY)
*/
#define netconn_set_ipv6only(conn, val) do { if(val) { \
netconn_set_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); \
} else { \
netconn_clear_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); }} while(0)
/** @ingroup netconn_common
* TCP: Get the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY)
*/
#define netconn_get_ipv6only(conn) (((conn)->flags & NETCONN_FLAG_IPV6_V6ONLY) != 0)
#endif /* LWIP_IPV6 */
#if LWIP_SO_SNDTIMEO
/** Set the send timeout in milliseconds */
#define netconn_set_sendtimeout(conn, timeout) ((conn)->send_timeout = (timeout))
/** Get the send timeout in milliseconds */
#define netconn_get_sendtimeout(conn) ((conn)->send_timeout)
#endif /* LWIP_SO_SNDTIMEO */
#if LWIP_SO_RCVTIMEO
/** Set the receive timeout in milliseconds */
#define netconn_set_recvtimeout(conn, timeout) ((conn)->recv_timeout = (timeout))
/** Get the receive timeout in milliseconds */
#define netconn_get_recvtimeout(conn) ((conn)->recv_timeout)
#endif /* LWIP_SO_RCVTIMEO */
#if LWIP_SO_RCVBUF
/** Set the receive buffer in bytes */
#define netconn_set_recvbufsize(conn, recvbufsize) ((conn)->recv_bufsize = (recvbufsize))
/** Get the receive buffer in bytes */
#define netconn_get_recvbufsize(conn) ((conn)->recv_bufsize)
#endif /* LWIP_SO_RCVBUF*/
#if LWIP_NETCONN_SEM_PER_THREAD
void netconn_thread_init(void);
void netconn_thread_cleanup(void);
#else /* LWIP_NETCONN_SEM_PER_THREAD */
#define netconn_thread_init()
#define netconn_thread_cleanup()
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
#if ESP_THREAD_PROTECTION
#define TCP_WRITE_LOCK(conn) ((conn)->write_protection = (true))
#define TCP_WRITE_UNLOCK(conn) ((conn)->write_protection = (false))
#endif /* ESP_THREAD_PROTECTION */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETCONN || LWIP_SOCKET */
#endif /* LWIP_HDR_API_H */

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/**
* @file
* Application layered TCP connection API that executes a proxy-connect.
*
* This file provides a starting layer that executes a proxy-connect e.g. to
* set up TLS connections through a http proxy.
*/
/*
* Copyright (c) 2018 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H
#define LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
struct altcp_proxyconnect_config {
ip_addr_t proxy_addr;
u16_t proxy_port;
};
struct altcp_pcb *altcp_proxyconnect_new(struct altcp_proxyconnect_config *config, struct altcp_pcb *inner_pcb);
struct altcp_pcb *altcp_proxyconnect_new_tcp(struct altcp_proxyconnect_config *config, u8_t ip_type);
struct altcp_pcb *altcp_proxyconnect_alloc(void *arg, u8_t ip_type);
#if LWIP_ALTCP_TLS
struct altcp_proxyconnect_tls_config {
struct altcp_proxyconnect_config proxy;
struct altcp_tls_config *tls_config;
};
struct altcp_pcb *altcp_proxyconnect_tls_alloc(void *arg, u8_t ip_type);
#endif /* LWIP_ALTCP_TLS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H */

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/**
* @file
* Application layered TCP/TLS connection API (to be used from TCPIP thread)
*
* This file contains options for an mbedtls port of the TLS layer.
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_TLS_OPTS_H
#define LWIP_HDR_ALTCP_TLS_OPTS_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
/** LWIP_ALTCP_TLS_MBEDTLS==1: use mbedTLS for TLS support for altcp API
* mbedtls include directory must be reachable via include search path
*/
#ifndef LWIP_ALTCP_TLS_MBEDTLS
#define LWIP_ALTCP_TLS_MBEDTLS 0
#endif
/** Configure debug level of this file */
#ifndef ALTCP_MBEDTLS_DEBUG
#define ALTCP_MBEDTLS_DEBUG LWIP_DBG_OFF
#endif
/** Configure lwIP debug level of the mbedTLS library */
#ifndef ALTCP_MBEDTLS_LIB_DEBUG
#define ALTCP_MBEDTLS_LIB_DEBUG LWIP_DBG_OFF
#endif
/** Configure minimum internal debug level of the mbedTLS library */
#ifndef ALTCP_MBEDTLS_LIB_DEBUG_LEVEL_MIN
#define ALTCP_MBEDTLS_LIB_DEBUG_LEVEL_MIN 0
#endif
/** Enable the basic session cache
* ATTENTION: Using a session cache can lower security by reusing keys!
*/
#ifndef ALTCP_MBEDTLS_USE_SESSION_CACHE
#define ALTCP_MBEDTLS_USE_SESSION_CACHE 0
#endif
/** Maximum cache size of the basic session cache */
#ifndef ALTCP_MBEDTLS_SESSION_CACHE_SIZE
#define ALTCP_MBEDTLS_SESSION_CACHE_SIZE 30
#endif
/** Set a session timeout in seconds for the basic session cache */
#ifndef ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS
#define ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS (60 * 60)
#endif
/** Use session tickets to speed up connection setup (needs
* MBEDTLS_SSL_SESSION_TICKETS enabled in mbedTLS config).
* ATTENTION: Using session tickets can lower security by reusing keys!
*/
#ifndef ALTCP_MBEDTLS_USE_SESSION_TICKETS
#define ALTCP_MBEDTLS_USE_SESSION_TICKETS 0
#endif
/** Session ticket cipher */
#ifndef ALTCP_MBEDTLS_SESSION_TICKET_CIPHER
#define ALTCP_MBEDTLS_SESSION_TICKET_CIPHER MBEDTLS_CIPHER_AES_256_GCM
#endif
/** Maximum timeout for session tickets */
#ifndef ALTCP_MBEDTLS_SESSION_TICKET_TIMEOUT_SECONDS
#define ALTCP_MBEDTLS_SESSION_TICKET_TIMEOUT_SECONDS (60 * 60 * 24)
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_TLS_OPTS_H */

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/*
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_APPS_FS_H
#define LWIP_HDR_APPS_FS_H
#include "httpd_opts.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
#define FS_READ_EOF -1
#define FS_READ_DELAYED -2
#if HTTPD_PRECALCULATED_CHECKSUM
struct fsdata_chksum {
u32_t offset;
u16_t chksum;
u16_t len;
};
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
#define FS_FILE_FLAGS_HEADER_INCLUDED 0x01
#define FS_FILE_FLAGS_HEADER_PERSISTENT 0x02
#define FS_FILE_FLAGS_HEADER_HTTPVER_1_1 0x04
#define FS_FILE_FLAGS_SSI 0x08
/** Define FS_FILE_EXTENSION_T_DEFINED if you have typedef'ed to your private
* pointer type (defaults to 'void' so the default usage is 'void*')
*/
#ifndef FS_FILE_EXTENSION_T_DEFINED
typedef void fs_file_extension;
#endif
struct fs_file {
const char *data;
int len;
int index;
/* pextension is free for implementations to hold private (extensional)
arbitrary data, e.g. holding some file state or file system handle */
fs_file_extension *pextension;
#if HTTPD_PRECALCULATED_CHECKSUM
const struct fsdata_chksum *chksum;
u16_t chksum_count;
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
u8_t flags;
#if LWIP_HTTPD_CUSTOM_FILES
u8_t is_custom_file;
#endif /* LWIP_HTTPD_CUSTOM_FILES */
#if LWIP_HTTPD_FILE_STATE
void *state;
#endif /* LWIP_HTTPD_FILE_STATE */
};
#if LWIP_HTTPD_FS_ASYNC_READ
typedef void (*fs_wait_cb)(void *arg);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
err_t fs_open(struct fs_file *file, const char *name);
void fs_close(struct fs_file *file);
#if LWIP_HTTPD_DYNAMIC_FILE_READ
#if LWIP_HTTPD_FS_ASYNC_READ
int fs_read_async(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg);
#else /* LWIP_HTTPD_FS_ASYNC_READ */
int fs_read(struct fs_file *file, char *buffer, int count);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
#endif /* LWIP_HTTPD_DYNAMIC_FILE_READ */
#if LWIP_HTTPD_FS_ASYNC_READ
int fs_is_file_ready(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
int fs_bytes_left(struct fs_file *file);
#if LWIP_HTTPD_FILE_STATE
/** This user-defined function is called when a file is opened. */
void *fs_state_init(struct fs_file *file, const char *name);
/** This user-defined function is called when a file is closed. */
void fs_state_free(struct fs_file *file, void *state);
#endif /* #if LWIP_HTTPD_FILE_STATE */
struct fsdata_file {
const struct fsdata_file *next;
const unsigned char *name;
const unsigned char *data;
int len;
u8_t flags;
#if HTTPD_PRECALCULATED_CHECKSUM
u16_t chksum_count;
const struct fsdata_chksum *chksum;
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
};
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_FS_H */

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/**
* @file
* HTTP client
*/
/*
* Copyright (c) 2018 Simon Goldschmidt <goldsimon@gmx.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_APPS_HTTP_CLIENT_H
#define LWIP_HDR_APPS_HTTP_CLIENT_H
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/altcp.h"
#include "lwip/prot/iana.h"
#include "lwip/pbuf.h"
#if LWIP_TCP && LWIP_CALLBACK_API
#ifdef __cplusplus
extern "C" {
#endif
/**
* @ingroup httpc
* HTTPC_HAVE_FILE_IO: define this to 1 to have functions dowloading directly
* to disk via fopen/fwrite.
* These functions are example implementations of the interface only.
*/
#ifndef LWIP_HTTPC_HAVE_FILE_IO
#define LWIP_HTTPC_HAVE_FILE_IO 0
#endif
/**
* @ingroup httpc
* The default TCP port used for HTTP
*/
#define HTTP_DEFAULT_PORT LWIP_IANA_PORT_HTTP
/**
* @ingroup httpc
* HTTP client result codes
*/
typedef enum ehttpc_result {
/** File successfully received */
HTTPC_RESULT_OK = 0,
/** Unknown error */
HTTPC_RESULT_ERR_UNKNOWN = 1,
/** Connection to server failed */
HTTPC_RESULT_ERR_CONNECT = 2,
/** Failed to resolve server hostname */
HTTPC_RESULT_ERR_HOSTNAME = 3,
/** Connection unexpectedly closed by remote server */
HTTPC_RESULT_ERR_CLOSED = 4,
/** Connection timed out (server didn't respond in time) */
HTTPC_RESULT_ERR_TIMEOUT = 5,
/** Server responded with an error code */
HTTPC_RESULT_ERR_SVR_RESP = 6,
/** Local memory error */
HTTPC_RESULT_ERR_MEM = 7,
/** Local abort */
HTTPC_RESULT_LOCAL_ABORT = 8,
/** Content length mismatch */
HTTPC_RESULT_ERR_CONTENT_LEN = 9
} httpc_result_t;
typedef struct _httpc_state httpc_state_t;
/**
* @ingroup httpc
* Prototype of a http client callback function
*
* @param arg argument specified when initiating the request
* @param httpc_result result of the http transfer (see enum httpc_result_t)
* @param rx_content_len number of bytes received (without headers)
* @param srv_res this contains the http status code received (if any)
* @param err an error returned by internal lwip functions, can help to specify
* the source of the error but must not necessarily be != ERR_OK
*/
typedef void (*httpc_result_fn)(void *arg, httpc_result_t httpc_result, u32_t rx_content_len, u32_t srv_res, err_t err);
/**
* @ingroup httpc
* Prototype of http client callback: called when the headers are received
*
* @param connection http client connection
* @param arg argument specified when initiating the request
* @param hdr header pbuf(s) (may contain data also)
* @param hdr_len length of the heders in 'hdr'
* @param content_len content length as received in the headers (-1 if not received)
* @return if != ERR_OK is returned, the connection is aborted
*/
typedef err_t (*httpc_headers_done_fn)(httpc_state_t *connection, void *arg, struct pbuf *hdr, u16_t hdr_len, u32_t content_len);
typedef struct _httpc_connection {
ip_addr_t proxy_addr;
u16_t proxy_port;
u8_t use_proxy;
/* @todo: add username:pass? */
#if LWIP_ALTCP
altcp_allocator_t *altcp_allocator;
#endif
/* this callback is called when the transfer is finished (or aborted) */
httpc_result_fn result_fn;
/* this callback is called after receiving the http headers
It can abort the connection by returning != ERR_OK */
httpc_headers_done_fn headers_done_fn;
} httpc_connection_t;
err_t httpc_get_file(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings,
altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection);
err_t httpc_get_file_dns(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings,
altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection);
#if LWIP_HTTPC_HAVE_FILE_IO
err_t httpc_get_file_to_disk(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings,
void* callback_arg, const char* local_file_name, httpc_state_t **connection);
err_t httpc_get_file_dns_to_disk(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings,
void* callback_arg, const char* local_file_name, httpc_state_t **connection);
#endif /* LWIP_HTTPC_HAVE_FILE_IO */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_TCP && LWIP_CALLBACK_API */
#endif /* LWIP_HDR_APPS_HTTP_CLIENT_H */

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/**
* @file
* HTTP server
*/
/*
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
* This version of the file has been modified by Texas Instruments to offer
* simple server-side-include (SSI) and Common Gateway Interface (CGI)
* capability.
*/
#ifndef LWIP_HDR_APPS_HTTPD_H
#define LWIP_HDR_APPS_HTTPD_H
#include "httpd_opts.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_HTTPD_CGI
/**
* @ingroup httpd
* Function pointer for a CGI script handler.
*
* This function is called each time the HTTPD server is asked for a file
* whose name was previously registered as a CGI function using a call to
* http_set_cgi_handlers. The iIndex parameter provides the index of the
* CGI within the cgis array passed to http_set_cgi_handlers. Parameters
* pcParam and pcValue provide access to the parameters provided along with
* the URI. iNumParams provides a count of the entries in the pcParam and
* pcValue arrays. Each entry in the pcParam array contains the name of a
* parameter with the corresponding entry in the pcValue array containing the
* value for that parameter. Note that pcParam may contain multiple elements
* with the same name if, for example, a multi-selection list control is used
* in the form generating the data.
*
* The function should return a pointer to a character string which is the
* path and filename of the response that is to be sent to the connected
* browser, for example "/thanks.htm" or "/response/error.ssi".
*
* The maximum number of parameters that will be passed to this function via
* iNumParams is defined by LWIP_HTTPD_MAX_CGI_PARAMETERS. Any parameters in
* the incoming HTTP request above this number will be discarded.
*
* Requests intended for use by this CGI mechanism must be sent using the GET
* method (which encodes all parameters within the URI rather than in a block
* later in the request). Attempts to use the POST method will result in the
* request being ignored.
*
*/
typedef const char *(*tCGIHandler)(int iIndex, int iNumParams, char *pcParam[],
char *pcValue[]);
/**
* @ingroup httpd
* Structure defining the base filename (URL) of a CGI and the associated
* function which is to be called when that URL is requested.
*/
typedef struct
{
const char *pcCGIName;
tCGIHandler pfnCGIHandler;
} tCGI;
void http_set_cgi_handlers(const tCGI *pCGIs, int iNumHandlers);
#endif /* LWIP_HTTPD_CGI */
#if LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI
#if LWIP_HTTPD_CGI_SSI
/* we have to prototype this struct here to make it available for the handler */
struct fs_file;
/** Define this generic CGI handler in your application.
* It is called once for every URI with parameters.
* The parameters can be stored to the object passed as connection_state, which
* is allocated to file->state via fs_state_init() from fs_open() or fs_open_custom().
* Content creation via SSI or complete dynamic files can retrieve the CGI params from there.
*/
extern void httpd_cgi_handler(struct fs_file *file, const char* uri, int iNumParams,
char **pcParam, char **pcValue
#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE
, void *connection_state
#endif /* LWIP_HTTPD_FILE_STATE */
);
#endif /* LWIP_HTTPD_CGI_SSI */
#endif /* LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI */
#if LWIP_HTTPD_SSI
/**
* @ingroup httpd
* Function pointer for the SSI tag handler callback.
*
* This function will be called each time the HTTPD server detects a tag of the
* form <!--#name--> in files with extensions mentioned in the g_pcSSIExtensions
* array (currently .shtml, .shtm, .ssi, .xml, .json) where "name" appears as
* one of the tags supplied to http_set_ssi_handler in the tags array. The
* returned insert string, which will be appended after the the string
* "<!--#name-->" in file sent back to the client, should be written to pointer
* pcInsert. iInsertLen contains the size of the buffer pointed to by
* pcInsert. The iIndex parameter provides the zero-based index of the tag as
* found in the tags array and identifies the tag that is to be processed.
*
* The handler returns the number of characters written to pcInsert excluding
* any terminating NULL or HTTPD_SSI_TAG_UNKNOWN when tag is not recognized.
*
* Note that the behavior of this SSI mechanism is somewhat different from the
* "normal" SSI processing as found in, for example, the Apache web server. In
* this case, the inserted text is appended following the SSI tag rather than
* replacing the tag entirely. This allows for an implementation that does not
* require significant additional buffering of output data yet which will still
* offer usable SSI functionality. One downside to this approach is when
* attempting to use SSI within JavaScript. The SSI tag is structured to
* resemble an HTML comment but this syntax does not constitute a comment
* within JavaScript and, hence, leaving the tag in place will result in
* problems in these cases. In order to avoid these problems, define
* LWIP_HTTPD_SSI_INCLUDE_TAG as zero in your lwip options file, or use JavaScript
* style block comments in the form / * # name * / (without the spaces).
*/
typedef u16_t (*tSSIHandler)(
#if LWIP_HTTPD_SSI_RAW
const char* ssi_tag_name,
#else /* LWIP_HTTPD_SSI_RAW */
int iIndex,
#endif /* LWIP_HTTPD_SSI_RAW */
char *pcInsert, int iInsertLen
#if LWIP_HTTPD_SSI_MULTIPART
, u16_t current_tag_part, u16_t *next_tag_part
#endif /* LWIP_HTTPD_SSI_MULTIPART */
#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE
, void *connection_state
#endif /* LWIP_HTTPD_FILE_STATE */
);
/** Set the SSI handler function
* (if LWIP_HTTPD_SSI_RAW==1, only the first argument is used)
*/
void http_set_ssi_handler(tSSIHandler pfnSSIHandler,
const char **ppcTags, int iNumTags);
/** For LWIP_HTTPD_SSI_RAW==1, return this to indicate the tag is unknown.
* In this case, the webserver writes a warning into the page.
* You can also just return 0 to write nothing for unknown tags.
*/
#define HTTPD_SSI_TAG_UNKNOWN 0xFFFF
#endif /* LWIP_HTTPD_SSI */
#if LWIP_HTTPD_SUPPORT_POST
/* These functions must be implemented by the application */
/**
* @ingroup httpd
* Called when a POST request has been received. The application can decide
* whether to accept it or not.
*
* @param connection Unique connection identifier, valid until httpd_post_end
* is called.
* @param uri The HTTP header URI receiving the POST request.
* @param http_request The raw HTTP request (the first packet, normally).
* @param http_request_len Size of 'http_request'.
* @param content_len Content-Length from HTTP header.
* @param response_uri Filename of response file, to be filled when denying the
* request
* @param response_uri_len Size of the 'response_uri' buffer.
* @param post_auto_wnd Set this to 0 to let the callback code handle window
* updates by calling 'httpd_post_data_recved' (to throttle rx speed)
* default is 1 (httpd handles window updates automatically)
* @return ERR_OK: Accept the POST request, data may be passed in
* another err_t: Deny the POST request, send back 'bad request'.
*/
err_t httpd_post_begin(void *connection, const char *uri, const char *http_request,
u16_t http_request_len, int content_len, char *response_uri,
u16_t response_uri_len, u8_t *post_auto_wnd);
/**
* @ingroup httpd
* Called for each pbuf of data that has been received for a POST.
* ATTENTION: The application is responsible for freeing the pbufs passed in!
*
* @param connection Unique connection identifier.
* @param p Received data.
* @return ERR_OK: Data accepted.
* another err_t: Data denied, http_post_get_response_uri will be called.
*/
err_t httpd_post_receive_data(void *connection, struct pbuf *p);
/**
* @ingroup httpd
* Called when all data is received or when the connection is closed.
* The application must return the filename/URI of a file to send in response
* to this POST request. If the response_uri buffer is untouched, a 404
* response is returned.
*
* @param connection Unique connection identifier.
* @param response_uri Filename of response file, to be filled when denying the request
* @param response_uri_len Size of the 'response_uri' buffer.
*/
void httpd_post_finished(void *connection, char *response_uri, u16_t response_uri_len);
#if LWIP_HTTPD_POST_MANUAL_WND
void httpd_post_data_recved(void *connection, u16_t recved_len);
#endif /* LWIP_HTTPD_POST_MANUAL_WND */
#endif /* LWIP_HTTPD_SUPPORT_POST */
void httpd_init(void);
#if HTTPD_ENABLE_HTTPS
struct altcp_tls_config;
void httpd_inits(struct altcp_tls_config *conf);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_HTTPD_H */

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/**
* @file
* HTTP server options list
*/
/*
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
* This version of the file has been modified by Texas Instruments to offer
* simple server-side-include (SSI) and Common Gateway Interface (CGI)
* capability.
*/
#ifndef LWIP_HDR_APPS_HTTPD_OPTS_H
#define LWIP_HDR_APPS_HTTPD_OPTS_H
#include "lwip/opt.h"
#include "lwip/prot/iana.h"
/**
* @defgroup httpd_opts Options
* @ingroup httpd
* @{
*/
/** Set this to 1 to support CGI (old style).
*
* This old style CGI support works by registering an array of URLs and
* associated CGI handler functions (@ref http_set_cgi_handlers).
* This list is scanned just before fs_open is called from request handling.
* The handler can return a new URL that is used internally by the httpd to
* load the returned page (passed to fs_open).
*
* Use this CGI type e.g. to execute specific actions and return a page that
* does not depend on the CGI parameters.
*/
#if !defined LWIP_HTTPD_CGI || defined __DOXYGEN__
#define LWIP_HTTPD_CGI 0
#endif
/** Set this to 1 to support CGI (new style).
*
* This new style CGI support works by calling a global function
* (@ref tCGIHandler) for all URLs that are found. fs_open is called first
* and the URL can not be written by the CGI handler. Instead, this handler gets
* passed the http file state, an object where it can store information derived
* from the CGI URL or parameters. This file state is later passed to SSI, so
* the SSI code can return data depending on CGI input.
*
* Use this CGI handler if you want CGI information passed on to SSI.
*/
#if !defined LWIP_HTTPD_CGI_SSI || defined __DOXYGEN__
#define LWIP_HTTPD_CGI_SSI 0
#endif
/** Set this to 1 to support SSI (Server-Side-Includes)
*
* In contrast to other http servers, this only calls a preregistered callback
* function (@see http_set_ssi_handler) for each tag (in the format of
* <!--#tag-->) encountered in SSI-enabled pages.
* SSI-enabled pages must have one of the predefined SSI-enabled file extensions.
* All files with one of these extensions are parsed when sent.
*
* A downside of the current SSI implementation is that persistent connections
* don't work, as the file length is not known in advance (and httpd currently
* relies on the Content-Length header for persistent connections).
*
* To save memory, the maximum tag length is limited (@see LWIP_HTTPD_MAX_TAG_NAME_LEN).
* To save memory, the maximum insertion string length is limited (@see
* LWIP_HTTPD_MAX_TAG_INSERT_LEN). If this is not enought, @ref LWIP_HTTPD_SSI_MULTIPART
* can be used.
*/
#if !defined LWIP_HTTPD_SSI || defined __DOXYGEN__
#define LWIP_HTTPD_SSI 0
#endif
/** Set this to 1 to implement an SSI tag handler callback that gets a const char*
* to the tag (instead of an index into a pre-registered array of known tags)
* If this is 0, the SSI handler callback function is only called pre-registered tags.
*/
#if !defined LWIP_HTTPD_SSI_RAW || defined __DOXYGEN__
#define LWIP_HTTPD_SSI_RAW 0
#endif
/** Set this to 0 to prevent parsing the file extension at runtime to decide
* if a file should be scanned for SSI tags or not.
* Default is 1 (file extensions are checked using the g_pcSSIExtensions array)
* Set to 2 to override this runtime test function.
*
* This is enabled by default, but if you only use a newer version of makefsdata
* supporting the "-ssi" option, this info is already present in
*/
#if !defined LWIP_HTTPD_SSI_BY_FILE_EXTENSION || defined __DOXYGEN__
#define LWIP_HTTPD_SSI_BY_FILE_EXTENSION 1
#endif
/** Set this to 1 to support HTTP POST */
#if !defined LWIP_HTTPD_SUPPORT_POST || defined __DOXYGEN__
#define LWIP_HTTPD_SUPPORT_POST 0
#endif
/* The maximum number of parameters that the CGI handler can be sent. */
#if !defined LWIP_HTTPD_MAX_CGI_PARAMETERS || defined __DOXYGEN__
#define LWIP_HTTPD_MAX_CGI_PARAMETERS 16
#endif
/** LWIP_HTTPD_SSI_MULTIPART==1: SSI handler function is called with 2 more
* arguments indicating a counter for insert string that are too long to be
* inserted at once: the SSI handler function must then set 'next_tag_part'
* which will be passed back to it in the next call. */
#if !defined LWIP_HTTPD_SSI_MULTIPART || defined __DOXYGEN__
#define LWIP_HTTPD_SSI_MULTIPART 0
#endif
/* The maximum length of the string comprising the SSI tag name
* ATTENTION: tags longer than this are ignored, not truncated!
*/
#if !defined LWIP_HTTPD_MAX_TAG_NAME_LEN || defined __DOXYGEN__
#define LWIP_HTTPD_MAX_TAG_NAME_LEN 8
#endif
/* The maximum length of string that can be returned to replace any given tag
* If this buffer is not long enough, use LWIP_HTTPD_SSI_MULTIPART.
*/
#if !defined LWIP_HTTPD_MAX_TAG_INSERT_LEN || defined __DOXYGEN__
#define LWIP_HTTPD_MAX_TAG_INSERT_LEN 192
#endif
#if !defined LWIP_HTTPD_POST_MANUAL_WND || defined __DOXYGEN__
#define LWIP_HTTPD_POST_MANUAL_WND 0
#endif
/** This string is passed in the HTTP header as "Server: " */
#if !defined HTTPD_SERVER_AGENT || defined __DOXYGEN__
#define HTTPD_SERVER_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)"
#endif
/** Set this to 1 if you want to include code that creates HTTP headers
* at runtime. Default is off: HTTP headers are then created statically
* by the makefsdata tool. Static headers mean smaller code size, but
* the (readonly) fsdata will grow a bit as every file includes the HTTP
* header. */
#if !defined LWIP_HTTPD_DYNAMIC_HEADERS || defined __DOXYGEN__
#define LWIP_HTTPD_DYNAMIC_HEADERS 0
#endif
#if !defined HTTPD_DEBUG || defined __DOXYGEN__
#define HTTPD_DEBUG LWIP_DBG_OFF
#endif
/** Set this to 1 to use a memp pool for allocating
* struct http_state instead of the heap.
* If enabled, you'll need to define MEMP_NUM_PARALLEL_HTTPD_CONNS
* (and MEMP_NUM_PARALLEL_HTTPD_SSI_CONNS for SSI) to set the size of
* the pool(s).
*/
#if !defined HTTPD_USE_MEM_POOL || defined __DOXYGEN__
#define HTTPD_USE_MEM_POOL 0
#endif
/** The server port for HTTPD to use */
#if !defined HTTPD_SERVER_PORT || defined __DOXYGEN__
#define HTTPD_SERVER_PORT LWIP_IANA_PORT_HTTP
#endif
/** The https server port for HTTPD to use */
#if !defined HTTPD_SERVER_PORT_HTTPS || defined __DOXYGEN__
#define HTTPD_SERVER_PORT_HTTPS LWIP_IANA_PORT_HTTPS
#endif
/** Enable https support? */
#if !defined HTTPD_ENABLE_HTTPS || defined __DOXYGEN__
#define HTTPD_ENABLE_HTTPS 0
#endif
/** Maximum retries before the connection is aborted/closed.
* - number of times pcb->poll is called -> default is 4*500ms = 2s;
* - reset when pcb->sent is called
*/
#if !defined HTTPD_MAX_RETRIES || defined __DOXYGEN__
#define HTTPD_MAX_RETRIES 4
#endif
/** The poll delay is X*500ms */
#if !defined HTTPD_POLL_INTERVAL || defined __DOXYGEN__
#define HTTPD_POLL_INTERVAL 4
#endif
/** Priority for tcp pcbs created by HTTPD (very low by default).
* Lower priorities get killed first when running out of memory.
*/
#if !defined HTTPD_TCP_PRIO || defined __DOXYGEN__
#define HTTPD_TCP_PRIO TCP_PRIO_MIN
#endif
/** Set this to 1 to enable timing each file sent */
#if !defined LWIP_HTTPD_TIMING || defined __DOXYGEN__
#define LWIP_HTTPD_TIMING 0
#endif
/** Set this to 1 to enable timing each file sent */
#if !defined HTTPD_DEBUG_TIMING || defined __DOXYGEN__
#define HTTPD_DEBUG_TIMING LWIP_DBG_OFF
#endif
/** Set this to one to show error pages when parsing a request fails instead
of simply closing the connection. */
#if !defined LWIP_HTTPD_SUPPORT_EXTSTATUS || defined __DOXYGEN__
#define LWIP_HTTPD_SUPPORT_EXTSTATUS 0
#endif
/** Set this to 0 to drop support for HTTP/0.9 clients (to save some bytes) */
#if !defined LWIP_HTTPD_SUPPORT_V09 || defined __DOXYGEN__
#define LWIP_HTTPD_SUPPORT_V09 1
#endif
/** Set this to 1 to enable HTTP/1.1 persistent connections.
* ATTENTION: If the generated file system includes HTTP headers, these must
* include the "Connection: keep-alive" header (pass argument "-11" to makefsdata).
*/
#if !defined LWIP_HTTPD_SUPPORT_11_KEEPALIVE || defined __DOXYGEN__
#define LWIP_HTTPD_SUPPORT_11_KEEPALIVE 0
#endif
/** Set this to 1 to support HTTP request coming in in multiple packets/pbufs */
#if !defined LWIP_HTTPD_SUPPORT_REQUESTLIST || defined __DOXYGEN__
#define LWIP_HTTPD_SUPPORT_REQUESTLIST 1
#endif
#if LWIP_HTTPD_SUPPORT_REQUESTLIST
/** Number of rx pbufs to enqueue to parse an incoming request (up to the first
newline) */
#if !defined LWIP_HTTPD_REQ_QUEUELEN || defined __DOXYGEN__
#define LWIP_HTTPD_REQ_QUEUELEN 5
#endif
/** Number of (TCP payload-) bytes (in pbufs) to enqueue to parse and incoming
request (up to the first double-newline) */
#if !defined LWIP_HTTPD_REQ_BUFSIZE || defined __DOXYGEN__
#define LWIP_HTTPD_REQ_BUFSIZE LWIP_HTTPD_MAX_REQ_LENGTH
#endif
/** Defines the maximum length of a HTTP request line (up to the first CRLF,
copied from pbuf into this a global buffer when pbuf- or packet-queues
are received - otherwise the input pbuf is used directly) */
#if !defined LWIP_HTTPD_MAX_REQ_LENGTH || defined __DOXYGEN__
#define LWIP_HTTPD_MAX_REQ_LENGTH LWIP_MIN(1023, (LWIP_HTTPD_REQ_QUEUELEN * PBUF_POOL_BUFSIZE))
#endif
#endif /* LWIP_HTTPD_SUPPORT_REQUESTLIST */
/** This is the size of a static buffer used when URIs end with '/'.
* In this buffer, the directory requested is concatenated with all the
* configured default file names.
* Set to 0 to disable checking default filenames on non-root directories.
*/
#if !defined LWIP_HTTPD_MAX_REQUEST_URI_LEN || defined __DOXYGEN__
#define LWIP_HTTPD_MAX_REQUEST_URI_LEN 63
#endif
/** Maximum length of the filename to send as response to a POST request,
* filled in by the application when a POST is finished.
*/
#if !defined LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN || defined __DOXYGEN__
#define LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN 63
#endif
/** Set this to 0 to not send the SSI tag (default is on, so the tag will
* be sent in the HTML page */
#if !defined LWIP_HTTPD_SSI_INCLUDE_TAG || defined __DOXYGEN__
#define LWIP_HTTPD_SSI_INCLUDE_TAG 1
#endif
/** Set this to 1 to call tcp_abort when tcp_close fails with memory error.
* This can be used to prevent consuming all memory in situations where the
* HTTP server has low priority compared to other communication. */
#if !defined LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR || defined __DOXYGEN__
#define LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR 0
#endif
/** Set this to 1 to kill the oldest connection when running out of
* memory for 'struct http_state' or 'struct http_ssi_state'.
* ATTENTION: This puts all connections on a linked list, so may be kind of slow.
*/
#if !defined LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED || defined __DOXYGEN__
#define LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED 0
#endif
/** Set this to 1 to send URIs without extension without headers
* (who uses this at all??) */
#if !defined LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI || defined __DOXYGEN__
#define LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI 0
#endif
/** Default: Tags are sent from struct http_state and are therefore volatile */
#if !defined HTTP_IS_TAG_VOLATILE || defined __DOXYGEN__
#define HTTP_IS_TAG_VOLATILE(ptr) TCP_WRITE_FLAG_COPY
#endif
/* By default, the httpd is limited to send 2*pcb->mss to keep resource usage low
when http is not an important protocol in the device. */
#if !defined HTTPD_LIMIT_SENDING_TO_2MSS || defined __DOXYGEN__
#define HTTPD_LIMIT_SENDING_TO_2MSS 1
#endif
/* Define this to a function that returns the maximum amount of data to enqueue.
The function have this signature: u16_t fn(struct altcp_pcb* pcb);
The best place to define this is the hooks file (@see LWIP_HOOK_FILENAME) */
#if !defined HTTPD_MAX_WRITE_LEN || defined __DOXYGEN__
#if HTTPD_LIMIT_SENDING_TO_2MSS
#define HTTPD_MAX_WRITE_LEN(pcb) ((u16_t)(2 * altcp_mss(pcb)))
#endif
#endif
/*------------------- FS OPTIONS -------------------*/
/** Set this to 1 and provide the functions:
* - "int fs_open_custom(struct fs_file *file, const char *name)"
* Called first for every opened file to allow opening files
* that are not included in fsdata(_custom).c
* - "void fs_close_custom(struct fs_file *file)"
* Called to free resources allocated by fs_open_custom().
*/
#if !defined LWIP_HTTPD_CUSTOM_FILES || defined __DOXYGEN__
#define LWIP_HTTPD_CUSTOM_FILES 0
#endif
/** Set this to 1 to support fs_read() to dynamically read file data.
* Without this (default=off), only one-block files are supported,
* and the contents must be ready after fs_open().
*/
#if !defined LWIP_HTTPD_DYNAMIC_FILE_READ || defined __DOXYGEN__
#define LWIP_HTTPD_DYNAMIC_FILE_READ 0
#endif
/** Set this to 1 to include an application state argument per file
* that is opened. This allows to keep a state per connection/file.
*/
#if !defined LWIP_HTTPD_FILE_STATE || defined __DOXYGEN__
#define LWIP_HTTPD_FILE_STATE 0
#endif
/** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for
* predefined (MSS-sized) chunks of the files to prevent having to calculate
* the checksums at runtime. */
#if !defined HTTPD_PRECALCULATED_CHECKSUM || defined __DOXYGEN__
#define HTTPD_PRECALCULATED_CHECKSUM 0
#endif
/** LWIP_HTTPD_FS_ASYNC_READ==1: support asynchronous read operations
* (fs_read_async returns FS_READ_DELAYED and calls a callback when finished).
*/
#if !defined LWIP_HTTPD_FS_ASYNC_READ || defined __DOXYGEN__
#define LWIP_HTTPD_FS_ASYNC_READ 0
#endif
/** Filename (including path) to use as FS data file */
#if !defined HTTPD_FSDATA_FILE || defined __DOXYGEN__
/* HTTPD_USE_CUSTOM_FSDATA: Compatibility with deprecated lwIP option */
#if defined(HTTPD_USE_CUSTOM_FSDATA) && (HTTPD_USE_CUSTOM_FSDATA != 0)
#define HTTPD_FSDATA_FILE "fsdata_custom.c"
#else
#define HTTPD_FSDATA_FILE "fsdata.c"
#endif
#endif
/**
* @}
*/
#endif /* LWIP_HDR_APPS_HTTPD_OPTS_H */

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/**
* @file
* lwIP iPerf server implementation
*/
/*
* Copyright (c) 2014 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_APPS_LWIPERF_H
#define LWIP_HDR_APPS_LWIPERF_H
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
#define LWIPERF_TCP_PORT_DEFAULT 5001
/** lwIPerf test results */
enum lwiperf_report_type
{
/** The server side test is done */
LWIPERF_TCP_DONE_SERVER,
/** The client side test is done */
LWIPERF_TCP_DONE_CLIENT,
/** Local error lead to test abort */
LWIPERF_TCP_ABORTED_LOCAL,
/** Data check error lead to test abort */
LWIPERF_TCP_ABORTED_LOCAL_DATAERROR,
/** Transmit error lead to test abort */
LWIPERF_TCP_ABORTED_LOCAL_TXERROR,
/** Remote side aborted the test */
LWIPERF_TCP_ABORTED_REMOTE
};
/** Control */
enum lwiperf_client_type
{
/** Unidirectional tx only test */
LWIPERF_CLIENT,
/** Do a bidirectional test simultaneously */
LWIPERF_DUAL,
/** Do a bidirectional test individually */
LWIPERF_TRADEOFF
};
/** Prototype of a report function that is called when a session is finished.
This report function can show the test results.
@param report_type contains the test result */
typedef void (*lwiperf_report_fn)(void *arg, enum lwiperf_report_type report_type,
const ip_addr_t* local_addr, u16_t local_port, const ip_addr_t* remote_addr, u16_t remote_port,
u32_t bytes_transferred, u32_t ms_duration, u32_t bandwidth_kbitpsec);
void* lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port,
lwiperf_report_fn report_fn, void* report_arg);
void* lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg);
void* lwiperf_start_tcp_client(const ip_addr_t* remote_addr, u16_t remote_port,
enum lwiperf_client_type type,
lwiperf_report_fn report_fn, void* report_arg);
void* lwiperf_start_tcp_client_default(const ip_addr_t* remote_addr,
lwiperf_report_fn report_fn, void* report_arg);
void lwiperf_abort(void* lwiperf_session);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_LWIPERF_H */

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/**
* @file
* MDNS responder
*/
/*
* Copyright (c) 2015 Verisure Innovation AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Ekman <erik@kryo.se>
*
*/
#ifndef LWIP_HDR_APPS_MDNS_H
#define LWIP_HDR_APPS_MDNS_H
#include "lwip/apps/mdns_opts.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_MDNS_RESPONDER
enum mdns_sd_proto {
DNSSD_PROTO_UDP = 0,
DNSSD_PROTO_TCP = 1
};
#define MDNS_PROBING_CONFLICT 0
#define MDNS_PROBING_SUCCESSFUL 1
#define MDNS_LABEL_MAXLEN 63
struct mdns_host;
struct mdns_service;
/** Callback function to add text to a reply, called when generating the reply */
typedef void (*service_get_txt_fn_t)(struct mdns_service *service, void *txt_userdata);
/** Callback function to let application know the result of probing network for name
* uniqueness, called with result MDNS_PROBING_SUCCESSFUL if no other node claimed
* use for the name for the netif or a service and is safe to use, or MDNS_PROBING_CONFLICT
* if another node is already using it and mdns is disabled on this interface */
typedef void (*mdns_name_result_cb_t)(struct netif* netif, u8_t result);
void mdns_resp_init(void);
void mdns_resp_register_name_result_cb(mdns_name_result_cb_t cb);
err_t mdns_resp_add_netif(struct netif *netif, const char *hostname, u32_t dns_ttl);
err_t mdns_resp_remove_netif(struct netif *netif);
err_t mdns_resp_rename_netif(struct netif *netif, const char *hostname);
s8_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_userdata);
err_t mdns_resp_del_service(struct netif *netif, s8_t slot);
err_t mdns_resp_rename_service(struct netif *netif, s8_t slot, const char *name);
err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len);
void mdns_resp_restart(struct netif *netif);
void mdns_resp_announce(struct netif *netif);
/**
* @ingroup mdns
* Announce IP settings have changed on netif.
* Call this in your callback registered by netif_set_status_callback().
* No need to call this function when LWIP_NETIF_EXT_STATUS_CALLBACK==1,
* this handled automatically for you.
* @param netif The network interface where settings have changed.
*/
#define mdns_resp_netif_settings_changed(netif) mdns_resp_announce(netif)
#endif /* LWIP_MDNS_RESPONDER */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_MDNS_H */

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/**
* @file
* MDNS responder
*/
/*
* Copyright (c) 2015 Verisure Innovation AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Ekman <erik@kryo.se>
*
*/
#ifndef LWIP_HDR_APPS_MDNS_OPTS_H
#define LWIP_HDR_APPS_MDNS_OPTS_H
#include "lwip/opt.h"
/**
* @defgroup mdns_opts Options
* @ingroup mdns
* @{
*/
/**
* LWIP_MDNS_RESPONDER==1: Turn on multicast DNS module. UDP must be available for MDNS
* transport. IGMP is needed for IPv4 multicast.
*/
#ifndef LWIP_MDNS_RESPONDER
#define LWIP_MDNS_RESPONDER 0
#endif /* LWIP_MDNS_RESPONDER */
/** The maximum number of services per netif */
#ifndef MDNS_MAX_SERVICES
#define MDNS_MAX_SERVICES 1
#endif
/** MDNS_RESP_USENETIF_EXTCALLBACK==1: register an ext_callback on the netif
* to automatically restart probing/announcing on status or address change.
*/
#ifndef MDNS_RESP_USENETIF_EXTCALLBACK
#define MDNS_RESP_USENETIF_EXTCALLBACK LWIP_NETIF_EXT_STATUS_CALLBACK
#endif
/**
* MDNS_DEBUG: Enable debugging for multicast DNS.
*/
#ifndef MDNS_DEBUG
#define MDNS_DEBUG LWIP_DBG_OFF
#endif
/**
* @}
*/
#endif /* LWIP_HDR_APPS_MDNS_OPTS_H */

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/**
* @file
* MDNS responder private definitions
*/
/*
* Copyright (c) 2015 Verisure Innovation AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Ekman <erik@kryo.se>
*
*/
#ifndef LWIP_HDR_MDNS_PRIV_H
#define LWIP_HDR_MDNS_PRIV_H
#include "lwip/apps/mdns_opts.h"
#include "lwip/pbuf.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_MDNS_RESPONDER
/* Domain struct and methods - visible for unit tests */
#define MDNS_DOMAIN_MAXLEN 256
#define MDNS_READNAME_ERROR 0xFFFF
struct mdns_domain {
/* Encoded domain name */
u8_t name[MDNS_DOMAIN_MAXLEN];
/* Total length of domain name, including zero */
u16_t length;
/* Set if compression of this domain is not allowed */
u8_t skip_compression;
};
err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len);
u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain);
int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b);
u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain);
#endif /* LWIP_MDNS_RESPONDER */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_MDNS_PRIV_H */

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/**
* @file
* MQTT client
*/
/*
* Copyright (c) 2016 Erik Andersson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Andersson
*
*/
#ifndef LWIP_HDR_APPS_MQTT_CLIENT_H
#define LWIP_HDR_APPS_MQTT_CLIENT_H
#include "lwip/apps/mqtt_opts.h"
#include "lwip/err.h"
#include "lwip/ip_addr.h"
#include "lwip/prot/iana.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct mqtt_client_s mqtt_client_t;
#if LWIP_ALTCP && LWIP_ALTCP_TLS
struct altcp_tls_config;
#endif
/** @ingroup mqtt
* Default MQTT port (non-TLS) */
#define MQTT_PORT LWIP_IANA_PORT_MQTT
/** @ingroup mqtt
* Default MQTT TLS port */
#define MQTT_TLS_PORT LWIP_IANA_PORT_SECURE_MQTT
/*---------------------------------------------------------------------------------------------- */
/* Connection with server */
/**
* @ingroup mqtt
* Client information and connection parameters */
struct mqtt_connect_client_info_t {
/** Client identifier, must be set by caller */
const char *client_id;
/** User name, set to NULL if not used */
const char* client_user;
/** Password, set to NULL if not used */
const char* client_pass;
/** keep alive time in seconds, 0 to disable keep alive functionality*/
u16_t keep_alive;
/** will topic, set to NULL if will is not to be used,
will_msg, will_qos and will retain are then ignored */
const char* will_topic;
/** will_msg, see will_topic */
const char* will_msg;
/** will_qos, see will_topic */
u8_t will_qos;
/** will_retain, see will_topic */
u8_t will_retain;
#if LWIP_ALTCP && LWIP_ALTCP_TLS
/** TLS configuration for secure connections */
struct altcp_tls_config *tls_config;
#endif
};
/**
* @ingroup mqtt
* Connection status codes */
typedef enum
{
/** Accepted */
MQTT_CONNECT_ACCEPTED = 0,
/** Refused protocol version */
MQTT_CONNECT_REFUSED_PROTOCOL_VERSION = 1,
/** Refused identifier */
MQTT_CONNECT_REFUSED_IDENTIFIER = 2,
/** Refused server */
MQTT_CONNECT_REFUSED_SERVER = 3,
/** Refused user credentials */
MQTT_CONNECT_REFUSED_USERNAME_PASS = 4,
/** Refused not authorized */
MQTT_CONNECT_REFUSED_NOT_AUTHORIZED_ = 5,
/** Disconnected */
MQTT_CONNECT_DISCONNECTED = 256,
/** Timeout */
MQTT_CONNECT_TIMEOUT = 257
} mqtt_connection_status_t;
/**
* @ingroup mqtt
* Function prototype for mqtt connection status callback. Called when
* client has connected to the server after initiating a mqtt connection attempt by
* calling mqtt_client_connect() or when connection is closed by server or an error
*
* @param client MQTT client itself
* @param arg Additional argument to pass to the callback function
* @param status Connect result code or disconnection notification @see mqtt_connection_status_t
*
*/
typedef void (*mqtt_connection_cb_t)(mqtt_client_t *client, void *arg, mqtt_connection_status_t status);
/**
* @ingroup mqtt
* Data callback flags */
enum {
/** Flag set when last fragment of data arrives in data callback */
MQTT_DATA_FLAG_LAST = 1
};
/**
* @ingroup mqtt
* Function prototype for MQTT incoming publish data callback function. Called when data
* arrives to a subscribed topic @see mqtt_subscribe
*
* @param arg Additional argument to pass to the callback function
* @param data User data, pointed object, data may not be referenced after callback return,
NULL is passed when all publish data are delivered
* @param len Length of publish data fragment
* @param flags MQTT_DATA_FLAG_LAST set when this call contains the last part of data from publish message
*
*/
typedef void (*mqtt_incoming_data_cb_t)(void *arg, const u8_t *data, u16_t len, u8_t flags);
/**
* @ingroup mqtt
* Function prototype for MQTT incoming publish function. Called when an incoming publish
* arrives to a subscribed topic @see mqtt_subscribe
*
* @param arg Additional argument to pass to the callback function
* @param topic Zero terminated Topic text string, topic may not be referenced after callback return
* @param tot_len Total length of publish data, if set to 0 (no publish payload) data callback will not be invoked
*/
typedef void (*mqtt_incoming_publish_cb_t)(void *arg, const char *topic, u32_t tot_len);
/**
* @ingroup mqtt
* Function prototype for mqtt request callback. Called when a subscribe, unsubscribe
* or publish request has completed
* @param arg Pointer to user data supplied when invoking request
* @param err ERR_OK on success
* ERR_TIMEOUT if no response was received within timeout,
* ERR_ABRT if (un)subscribe was denied
*/
typedef void (*mqtt_request_cb_t)(void *arg, err_t err);
err_t mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ipaddr, u16_t port, mqtt_connection_cb_t cb, void *arg,
const struct mqtt_connect_client_info_t *client_info);
void mqtt_disconnect(mqtt_client_t *client);
mqtt_client_t *mqtt_client_new(void);
void mqtt_client_free(mqtt_client_t* client);
u8_t mqtt_client_is_connected(mqtt_client_t *client);
void mqtt_set_inpub_callback(mqtt_client_t *client, mqtt_incoming_publish_cb_t,
mqtt_incoming_data_cb_t data_cb, void *arg);
err_t mqtt_sub_unsub(mqtt_client_t *client, const char *topic, u8_t qos, mqtt_request_cb_t cb, void *arg, u8_t sub);
/** @ingroup mqtt
*Subscribe to topic */
#define mqtt_subscribe(client, topic, qos, cb, arg) mqtt_sub_unsub(client, topic, qos, cb, arg, 1)
/** @ingroup mqtt
* Unsubscribe to topic */
#define mqtt_unsubscribe(client, topic, cb, arg) mqtt_sub_unsub(client, topic, 0, cb, arg, 0)
err_t mqtt_publish(mqtt_client_t *client, const char *topic, const void *payload, u16_t payload_length, u8_t qos, u8_t retain,
mqtt_request_cb_t cb, void *arg);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_MQTT_CLIENT_H */

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/**
* @file
* MQTT client options
*/
/*
* Copyright (c) 2016 Erik Andersson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Andersson
*
*/
#ifndef LWIP_HDR_APPS_MQTT_OPTS_H
#define LWIP_HDR_APPS_MQTT_OPTS_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup mqtt_opts Options
* @ingroup mqtt
* @{
*/
/**
* Output ring-buffer size, must be able to fit largest outgoing publish message topic+payloads
*/
#ifndef MQTT_OUTPUT_RINGBUF_SIZE
#define MQTT_OUTPUT_RINGBUF_SIZE 256
#endif
/**
* Number of bytes in receive buffer, must be at least the size of the longest incoming topic + 8
* If one wants to avoid fragmented incoming publish, set length to max incoming topic length + max payload length + 8
*/
#ifndef MQTT_VAR_HEADER_BUFFER_LEN
#define MQTT_VAR_HEADER_BUFFER_LEN 128
#endif
/**
* Maximum number of pending subscribe, unsubscribe and publish requests to server .
*/
#ifndef MQTT_REQ_MAX_IN_FLIGHT
#define MQTT_REQ_MAX_IN_FLIGHT 4
#endif
/**
* Seconds between each cyclic timer call.
*/
#ifndef MQTT_CYCLIC_TIMER_INTERVAL
#define MQTT_CYCLIC_TIMER_INTERVAL 5
#endif
/**
* Publish, subscribe and unsubscribe request timeout in seconds.
*/
#ifndef MQTT_REQ_TIMEOUT
#define MQTT_REQ_TIMEOUT 30
#endif
/**
* Seconds for MQTT connect response timeout after sending connect request
*/
#ifndef MQTT_CONNECT_TIMOUT
#define MQTT_CONNECT_TIMOUT 100
#endif
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_MQTT_OPTS_H */

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/**
* @file
* MQTT client (private interface)
*/
/*
* Copyright (c) 2016 Erik Andersson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Erik Andersson
*
*/
#ifndef LWIP_HDR_APPS_MQTT_PRIV_H
#define LWIP_HDR_APPS_MQTT_PRIV_H
#include "lwip/apps/mqtt.h"
#include "lwip/altcp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Pending request item, binds application callback to pending server requests */
struct mqtt_request_t
{
/** Next item in list, NULL means this is the last in chain,
next pointing at itself means request is unallocated */
struct mqtt_request_t *next;
/** Callback to upper layer */
mqtt_request_cb_t cb;
void *arg;
/** MQTT packet identifier */
u16_t pkt_id;
/** Expire time relative to element before this */
u16_t timeout_diff;
};
/** Ring buffer */
struct mqtt_ringbuf_t {
u16_t put;
u16_t get;
u8_t buf[MQTT_OUTPUT_RINGBUF_SIZE];
};
/** MQTT client */
struct mqtt_client_s
{
/** Timers and timeouts */
u16_t cyclic_tick;
u16_t keep_alive;
u16_t server_watchdog;
/** Packet identifier generator*/
u16_t pkt_id_seq;
/** Packet identifier of pending incoming publish */
u16_t inpub_pkt_id;
/** Connection state */
u8_t conn_state;
struct altcp_pcb *conn;
/** Connection callback */
void *connect_arg;
mqtt_connection_cb_t connect_cb;
/** Pending requests to server */
struct mqtt_request_t *pend_req_queue;
struct mqtt_request_t req_list[MQTT_REQ_MAX_IN_FLIGHT];
void *inpub_arg;
/** Incoming data callback */
mqtt_incoming_data_cb_t data_cb;
mqtt_incoming_publish_cb_t pub_cb;
/** Input */
u32_t msg_idx;
u8_t rx_buffer[MQTT_VAR_HEADER_BUFFER_LEN];
/** Output ring-buffer */
struct mqtt_ringbuf_t output;
};
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_MQTT_PRIV_H */

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/**
* @file
* NETBIOS name service responder
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#ifndef LWIP_HDR_APPS_NETBIOS_H
#define LWIP_HDR_APPS_NETBIOS_H
#include "lwip/apps/netbiosns_opts.h"
#ifdef __cplusplus
extern "C" {
#endif
void netbiosns_init(void);
#ifndef NETBIOS_LWIP_NAME
void netbiosns_set_name(const char* hostname);
#endif
void netbiosns_stop(void);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_NETBIOS_H */

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/**
* @file
* NETBIOS name service responder options
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#ifndef LWIP_HDR_APPS_NETBIOS_OPTS_H
#define LWIP_HDR_APPS_NETBIOS_OPTS_H
#include "lwip/opt.h"
/**
* @defgroup netbiosns_opts Options
* @ingroup netbiosns
* @{
*/
/** NetBIOS name of lwip device
* This must be uppercase until NETBIOS_STRCMP() is defined to a string
* comparision function that is case insensitive.
* If you want to use the netif's hostname, use this (with LWIP_NETIF_HOSTNAME):
* (ip_current_netif() != NULL ? ip_current_netif()->hostname != NULL ? ip_current_netif()->hostname : "" : "")
*
* If this is not defined, netbiosns_set_name() can be called at runtime to change the name.
*/
#ifdef __DOXYGEN__
#define NETBIOS_LWIP_NAME "NETBIOSLWIPDEV"
#endif
/** Respond to NetBIOS name queries
* Default is disabled
*/
#if !defined LWIP_NETBIOS_RESPOND_NAME_QUERY || defined __DOXYGEN__
#define LWIP_NETBIOS_RESPOND_NAME_QUERY 0
#endif
/**
* @}
*/
#endif /* LWIP_HDR_APPS_NETBIOS_OPTS_H */

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#ifndef LWIP_HDR_APPS_SMTP_H
#define LWIP_HDR_APPS_SMTP_H
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/apps/smtp_opts.h"
#include "lwip/err.h"
#include "lwip/prot/iana.h"
/** The default TCP port used for SMTP */
#define SMTP_DEFAULT_PORT LWIP_IANA_PORT_SMTP
/** The default TCP port used for SMTPS */
#define SMTPS_DEFAULT_PORT LWIP_IANA_PORT_SMTPS
/** Email successfully sent */
#define SMTP_RESULT_OK 0
/** Unknown error */
#define SMTP_RESULT_ERR_UNKNOWN 1
/** Connection to server failed */
#define SMTP_RESULT_ERR_CONNECT 2
/** Failed to resolve server hostname */
#define SMTP_RESULT_ERR_HOSTNAME 3
/** Connection unexpectedly closed by remote server */
#define SMTP_RESULT_ERR_CLOSED 4
/** Connection timed out (server didn't respond in time) */
#define SMTP_RESULT_ERR_TIMEOUT 5
/** Server responded with an unknown response code */
#define SMTP_RESULT_ERR_SVR_RESP 6
/** Out of resources locally */
#define SMTP_RESULT_ERR_MEM 7
/** Prototype of an smtp callback function
*
* @param arg argument specified when initiating the email
* @param smtp_result result of the mail transfer (see defines SMTP_RESULT_*)
* @param srv_err if aborted by the server, this contains the error code received
* @param err an error returned by internal lwip functions, can help to specify
* the source of the error but must not necessarily be != ERR_OK
*/
typedef void (*smtp_result_fn)(void *arg, u8_t smtp_result, u16_t srv_err, err_t err);
/** This structure is used as argument for smtp_send_mail_int(),
* which in turn can be used with tcpip_callback() to send mail
* from interrupt context, e.g. like this:
* struct smtp_send_request *req; (to be filled)
* tcpip_try_callback(smtp_send_mail_int, (void*)req);
*
* For member description, see parameter description of smtp_send_mail().
* When using with tcpip_callback, this structure has to stay allocated
* (e.g. using mem_malloc/mem_free) until its 'callback_fn' is called.
*/
struct smtp_send_request {
const char *from;
const char* to;
const char* subject;
const char* body;
smtp_result_fn callback_fn;
void* callback_arg;
/** If this is != 0, data is *not* copied into an extra buffer
* but used from the pointers supplied in this struct.
* This means less memory usage, but data must stay untouched until
* the callback function is called. */
u8_t static_data;
};
#if SMTP_BODYDH
#ifndef SMTP_BODYDH_BUFFER_SIZE
#define SMTP_BODYDH_BUFFER_SIZE 256
#endif /* SMTP_BODYDH_BUFFER_SIZE */
struct smtp_bodydh {
u16_t state;
u16_t length; /* Length of content in buffer */
char buffer[SMTP_BODYDH_BUFFER_SIZE]; /* buffer for generated content */
#ifdef SMTP_BODYDH_USER_SIZE
u8_t user[SMTP_BODYDH_USER_SIZE];
#endif /* SMTP_BODYDH_USER_SIZE */
};
enum bdh_retvals_e {
BDH_DONE = 0,
BDH_WORKING
};
/** Prototype of an smtp body callback function
* It receives a struct smtp_bodydh, and a buffer to write data,
* must return BDH_WORKING to be called again and BDH_DONE when
* it has finished processing. This one tries to fill one TCP buffer with
* data, your function will be repeatedly called until that happens; so if you
* know you'll be taking too long to serve your request, pause once in a while
* by writing length=0 to avoid hogging system resources
*
* @param arg argument specified when initiating the email
* @param smtp_bodydh state handling + buffer structure
*/
typedef int (*smtp_bodycback_fn)(void *arg, struct smtp_bodydh *bodydh);
err_t smtp_send_mail_bodycback(const char *from, const char* to, const char* subject,
smtp_bodycback_fn bodycback_fn, smtp_result_fn callback_fn, void* callback_arg);
#endif /* SMTP_BODYDH */
err_t smtp_set_server_addr(const char* server);
void smtp_set_server_port(u16_t port);
#if LWIP_ALTCP && LWIP_ALTCP_TLS
struct altcp_tls_config;
void smtp_set_tls_config(struct altcp_tls_config *tls_config);
#endif
err_t smtp_set_auth(const char* username, const char* pass);
err_t smtp_send_mail(const char *from, const char* to, const char* subject, const char* body,
smtp_result_fn callback_fn, void* callback_arg);
err_t smtp_send_mail_static(const char *from, const char* to, const char* subject, const char* body,
smtp_result_fn callback_fn, void* callback_arg);
void smtp_send_mail_int(void *arg);
#ifdef LWIP_DEBUG
const char* smtp_result_str(u8_t smtp_result);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SMTP_H */

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#ifndef LWIP_HDR_APPS_SMTP_OPTS_H
#define LWIP_HDR_APPS_SMTP_OPTS_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup smtp_opts Options
* @ingroup smtp
*
* @{
*/
/** Set this to 1 to enable data handler callback on BODY */
#ifndef SMTP_BODYDH
#define SMTP_BODYDH 0
#endif
/** SMTP_DEBUG: Enable debugging for SNTP. */
#ifndef SMTP_DEBUG
#define SMTP_DEBUG LWIP_DBG_OFF
#endif
/** Maximum length reserved for server name including terminating 0 byte */
#ifndef SMTP_MAX_SERVERNAME_LEN
#define SMTP_MAX_SERVERNAME_LEN 256
#endif
/** Maximum length reserved for username */
#ifndef SMTP_MAX_USERNAME_LEN
#define SMTP_MAX_USERNAME_LEN 32
#endif
/** Maximum length reserved for password */
#ifndef SMTP_MAX_PASS_LEN
#define SMTP_MAX_PASS_LEN 32
#endif
/** Set this to 0 if you know the authentication data will not change
* during the smtp session, which saves some heap space. */
#ifndef SMTP_COPY_AUTHDATA
#define SMTP_COPY_AUTHDATA 1
#endif
/** Set this to 0 to save some code space if you know for sure that all data
* passed to this module conforms to the requirements in the SMTP RFC.
* WARNING: use this with care!
*/
#ifndef SMTP_CHECK_DATA
#define SMTP_CHECK_DATA 1
#endif
/** Set this to 1 to enable AUTH PLAIN support */
#ifndef SMTP_SUPPORT_AUTH_PLAIN
#define SMTP_SUPPORT_AUTH_PLAIN 1
#endif
/** Set this to 1 to enable AUTH LOGIN support */
#ifndef SMTP_SUPPORT_AUTH_LOGIN
#define SMTP_SUPPORT_AUTH_LOGIN 1
#endif
/* Memory allocation/deallocation can be overridden... */
#ifndef SMTP_STATE_MALLOC
#define SMTP_STATE_MALLOC(size) mem_malloc(size)
#define SMTP_STATE_FREE(ptr) mem_free(ptr)
#endif
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* SMTP_OPTS_H */

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/**
* @file
* SNMP server main API - start and basic configuration
*/
/*
* Copyright (c) 2001, 2002 Leon Woestenberg <leon.woestenberg@axon.tv>
* Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Leon Woestenberg <leon.woestenberg@axon.tv>
* Martin Hentschel <info@cl-soft.de>
*
*/
#ifndef LWIP_HDR_APPS_SNMP_H
#define LWIP_HDR_APPS_SNMP_H
#include "lwip/apps/snmp_opts.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#include "lwip/err.h"
#include "lwip/apps/snmp_core.h"
/** SNMP variable binding descriptor (publically needed for traps) */
struct snmp_varbind
{
/** pointer to next varbind, NULL for last in list */
struct snmp_varbind *next;
/** pointer to previous varbind, NULL for first in list */
struct snmp_varbind *prev;
/** object identifier */
struct snmp_obj_id oid;
/** value ASN1 type */
u8_t type;
/** object value length */
u16_t value_len;
/** object value */
void *value;
};
/**
* @ingroup snmp_core
* Agent setup, start listening to port 161.
*/
void snmp_init(void);
void snmp_set_mibs(const struct snmp_mib **mibs, u8_t num_mibs);
void snmp_set_device_enterprise_oid(const struct snmp_obj_id* device_enterprise_oid);
const struct snmp_obj_id* snmp_get_device_enterprise_oid(void);
void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable);
void snmp_trap_dst_ip_set(u8_t dst_idx, const ip_addr_t *dst);
/** Generic trap: cold start */
#define SNMP_GENTRAP_COLDSTART 0
/** Generic trap: warm start */
#define SNMP_GENTRAP_WARMSTART 1
/** Generic trap: link down */
#define SNMP_GENTRAP_LINKDOWN 2
/** Generic trap: link up */
#define SNMP_GENTRAP_LINKUP 3
/** Generic trap: authentication failure */
#define SNMP_GENTRAP_AUTH_FAILURE 4
/** Generic trap: EGP neighbor lost */
#define SNMP_GENTRAP_EGP_NEIGHBOR_LOSS 5
/** Generic trap: enterprise specific */
#define SNMP_GENTRAP_ENTERPRISE_SPECIFIC 6
err_t snmp_send_trap_generic(s32_t generic_trap);
err_t snmp_send_trap_specific(s32_t specific_trap, struct snmp_varbind *varbinds);
err_t snmp_send_trap(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds);
#define SNMP_AUTH_TRAPS_DISABLED 0
#define SNMP_AUTH_TRAPS_ENABLED 1
void snmp_set_auth_traps_enabled(u8_t enable);
u8_t snmp_get_auth_traps_enabled(void);
u8_t snmp_v1_enabled(void);
u8_t snmp_v2c_enabled(void);
u8_t snmp_v3_enabled(void);
void snmp_v1_enable(u8_t enable);
void snmp_v2c_enable(u8_t enable);
void snmp_v3_enable(u8_t enable);
const char * snmp_get_community(void);
const char * snmp_get_community_write(void);
const char * snmp_get_community_trap(void);
void snmp_set_community(const char * const community);
void snmp_set_community_write(const char * const community);
void snmp_set_community_trap(const char * const community);
void snmp_coldstart_trap(void);
void snmp_authfail_trap(void);
typedef void (*snmp_write_callback_fct)(const u32_t* oid, u8_t oid_len, void* callback_arg);
void snmp_set_write_callback(snmp_write_callback_fct write_callback, void* callback_arg);
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_H */

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/**
* @file
* SNMP core API for implementing MIBs
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Christiaan Simons <christiaan.simons@axon.tv>
* Martin Hentschel <info@cl-soft.de>
*/
#ifndef LWIP_HDR_APPS_SNMP_CORE_H
#define LWIP_HDR_APPS_SNMP_CORE_H
#include "lwip/apps/snmp_opts.h"
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/* basic ASN1 defines */
#define SNMP_ASN1_CLASS_UNIVERSAL 0x00
#define SNMP_ASN1_CLASS_APPLICATION 0x40
#define SNMP_ASN1_CLASS_CONTEXT 0x80
#define SNMP_ASN1_CLASS_PRIVATE 0xC0
#define SNMP_ASN1_CONTENTTYPE_PRIMITIVE 0x00
#define SNMP_ASN1_CONTENTTYPE_CONSTRUCTED 0x20
/* universal tags (from ASN.1 spec.) */
#define SNMP_ASN1_UNIVERSAL_END_OF_CONTENT 0
#define SNMP_ASN1_UNIVERSAL_INTEGER 2
#define SNMP_ASN1_UNIVERSAL_OCTET_STRING 4
#define SNMP_ASN1_UNIVERSAL_NULL 5
#define SNMP_ASN1_UNIVERSAL_OBJECT_ID 6
#define SNMP_ASN1_UNIVERSAL_SEQUENCE_OF 16
/* application specific (SNMP) tags (from SNMPv2-SMI) */
#define SNMP_ASN1_APPLICATION_IPADDR 0 /* [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4)) */
#define SNMP_ASN1_APPLICATION_COUNTER 1 /* [APPLICATION 1] IMPLICIT INTEGER (0..4294967295) => u32_t */
#define SNMP_ASN1_APPLICATION_GAUGE 2 /* [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) => u32_t */
#define SNMP_ASN1_APPLICATION_TIMETICKS 3 /* [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) => u32_t */
#define SNMP_ASN1_APPLICATION_OPAQUE 4 /* [APPLICATION 4] IMPLICIT OCTET STRING */
#define SNMP_ASN1_APPLICATION_COUNTER64 6 /* [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615) */
/* context specific (SNMP) tags (from RFC 1905) */
#define SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE 1
/* full ASN1 type defines */
#define SNMP_ASN1_TYPE_END_OF_CONTENT (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_END_OF_CONTENT)
#define SNMP_ASN1_TYPE_INTEGER (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_INTEGER)
#define SNMP_ASN1_TYPE_OCTET_STRING (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OCTET_STRING)
#define SNMP_ASN1_TYPE_NULL (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_NULL)
#define SNMP_ASN1_TYPE_OBJECT_ID (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OBJECT_ID)
#define SNMP_ASN1_TYPE_SEQUENCE (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_UNIVERSAL_SEQUENCE_OF)
#define SNMP_ASN1_TYPE_IPADDR (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_IPADDR)
#define SNMP_ASN1_TYPE_IPADDRESS SNMP_ASN1_TYPE_IPADDR
#define SNMP_ASN1_TYPE_COUNTER (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER)
#define SNMP_ASN1_TYPE_COUNTER32 SNMP_ASN1_TYPE_COUNTER
#define SNMP_ASN1_TYPE_GAUGE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_GAUGE)
#define SNMP_ASN1_TYPE_GAUGE32 SNMP_ASN1_TYPE_GAUGE
#define SNMP_ASN1_TYPE_UNSIGNED32 SNMP_ASN1_TYPE_GAUGE
#define SNMP_ASN1_TYPE_TIMETICKS (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_TIMETICKS)
#define SNMP_ASN1_TYPE_OPAQUE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_OPAQUE)
#if LWIP_HAVE_INT64
#define SNMP_ASN1_TYPE_COUNTER64 (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER64)
#endif
#define SNMP_VARBIND_EXCEPTION_OFFSET 0xF0
#define SNMP_VARBIND_EXCEPTION_MASK 0x0F
/** error codes predefined by SNMP prot. */
typedef enum {
SNMP_ERR_NOERROR = 0,
/*
outdated v1 error codes. do not use anmore!
#define SNMP_ERR_NOSUCHNAME 2 use SNMP_ERR_NOSUCHINSTANCE instead
#define SNMP_ERR_BADVALUE 3 use SNMP_ERR_WRONGTYPE,SNMP_ERR_WRONGLENGTH,SNMP_ERR_WRONGENCODING or SNMP_ERR_WRONGVALUE instead
#define SNMP_ERR_READONLY 4 use SNMP_ERR_NOTWRITABLE instead
*/
SNMP_ERR_GENERROR = 5,
SNMP_ERR_NOACCESS = 6,
SNMP_ERR_WRONGTYPE = 7,
SNMP_ERR_WRONGLENGTH = 8,
SNMP_ERR_WRONGENCODING = 9,
SNMP_ERR_WRONGVALUE = 10,
SNMP_ERR_NOCREATION = 11,
SNMP_ERR_INCONSISTENTVALUE = 12,
SNMP_ERR_RESOURCEUNAVAILABLE = 13,
SNMP_ERR_COMMITFAILED = 14,
SNMP_ERR_UNDOFAILED = 15,
SNMP_ERR_NOTWRITABLE = 17,
SNMP_ERR_INCONSISTENTNAME = 18,
SNMP_ERR_NOSUCHINSTANCE = SNMP_VARBIND_EXCEPTION_OFFSET + SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE
} snmp_err_t;
/** internal object identifier representation */
struct snmp_obj_id
{
u8_t len;
u32_t id[SNMP_MAX_OBJ_ID_LEN];
};
struct snmp_obj_id_const_ref
{
u8_t len;
const u32_t* id;
};
extern const struct snmp_obj_id_const_ref snmp_zero_dot_zero; /* administrative identifier from SNMPv2-SMI */
/** SNMP variant value, used as reference in struct snmp_node_instance and table implementation */
union snmp_variant_value
{
void* ptr;
const void* const_ptr;
u32_t u32;
s32_t s32;
#if LWIP_HAVE_INT64
u64_t u64;
#endif
};
/**
SNMP MIB node types
tree node is the only node the stack can process in order to walk the tree,
all other nodes are assumed to be leaf nodes.
This cannot be an enum because users may want to define their own node types.
*/
#define SNMP_NODE_TREE 0x00
/* predefined leaf node types */
#define SNMP_NODE_SCALAR 0x01
#define SNMP_NODE_SCALAR_ARRAY 0x02
#define SNMP_NODE_TABLE 0x03
#define SNMP_NODE_THREADSYNC 0x04
/** node "base class" layout, the mandatory fields for a node */
struct snmp_node
{
/** one out of SNMP_NODE_TREE or any leaf node type (like SNMP_NODE_SCALAR) */
u8_t node_type;
/** the number assigned to this node which used as part of the full OID */
u32_t oid;
};
/** SNMP node instance access types */
typedef enum {
SNMP_NODE_INSTANCE_ACCESS_READ = 1,
SNMP_NODE_INSTANCE_ACCESS_WRITE = 2,
SNMP_NODE_INSTANCE_READ_ONLY = SNMP_NODE_INSTANCE_ACCESS_READ,
SNMP_NODE_INSTANCE_READ_WRITE = (SNMP_NODE_INSTANCE_ACCESS_READ | SNMP_NODE_INSTANCE_ACCESS_WRITE),
SNMP_NODE_INSTANCE_WRITE_ONLY = SNMP_NODE_INSTANCE_ACCESS_WRITE,
SNMP_NODE_INSTANCE_NOT_ACCESSIBLE = 0
} snmp_access_t;
struct snmp_node_instance;
typedef s16_t (*node_instance_get_value_method)(struct snmp_node_instance*, void*);
typedef snmp_err_t (*node_instance_set_test_method)(struct snmp_node_instance*, u16_t, void*);
typedef snmp_err_t (*node_instance_set_value_method)(struct snmp_node_instance*, u16_t, void*);
typedef void (*node_instance_release_method)(struct snmp_node_instance*);
#define SNMP_GET_VALUE_RAW_DATA 0x4000 /* do not use 0x8000 because return value of node_instance_get_value_method is signed16 and 0x8000 would be the signed bit */
/** SNMP node instance */
struct snmp_node_instance
{
/** prefilled with the node, get_instance() is called on; may be changed by user to any value to pass an arbitrary node between calls to get_instance() and get_value/test_value/set_value */
const struct snmp_node* node;
/** prefilled with the instance id requested; for get_instance() this is the exact oid requested; for get_next_instance() this is the relative starting point, stack expects relative oid of next node here */
struct snmp_obj_id instance_oid;
/** ASN type for this object (see snmp_asn1.h for definitions) */
u8_t asn1_type;
/** one out of instance access types defined above (SNMP_NODE_INSTANCE_READ_ONLY,...) */
snmp_access_t access;
/** returns object value for the given object identifier. Return values <0 to indicate an error */
node_instance_get_value_method get_value;
/** tests length and/or range BEFORE setting */
node_instance_set_test_method set_test;
/** sets object value, only called when set_test() was successful */
node_instance_set_value_method set_value;
/** called in any case when the instance is not required anymore by stack (useful for freeing memory allocated in get_instance/get_next_instance methods) */
node_instance_release_method release_instance;
/** reference to pass arbitrary value between calls to get_instance() and get_value/test_value/set_value */
union snmp_variant_value reference;
/** see reference (if reference is a pointer, the length of underlying data may be stored here or anything else) */
u32_t reference_len;
};
/** SNMP tree node */
struct snmp_tree_node
{
/** inherited "base class" members */
struct snmp_node node;
u16_t subnode_count;
const struct snmp_node* const *subnodes;
};
#define SNMP_CREATE_TREE_NODE(oid, subnodes) \
{{ SNMP_NODE_TREE, (oid) }, \
(u16_t)LWIP_ARRAYSIZE(subnodes), (subnodes) }
#define SNMP_CREATE_EMPTY_TREE_NODE(oid) \
{{ SNMP_NODE_TREE, (oid) }, \
0, NULL }
/** SNMP leaf node */
struct snmp_leaf_node
{
/** inherited "base class" members */
struct snmp_node node;
snmp_err_t (*get_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t (*get_next_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
};
/** represents a single mib with its base oid and root node */
struct snmp_mib
{
const u32_t *base_oid;
u8_t base_oid_len;
const struct snmp_node *root_node;
};
#define SNMP_MIB_CREATE(oid_list, root_node) { (oid_list), (u8_t)LWIP_ARRAYSIZE(oid_list), root_node }
/** OID range structure */
struct snmp_oid_range
{
u32_t min;
u32_t max;
};
/** checks if incoming OID length and values are in allowed ranges */
u8_t snmp_oid_in_range(const u32_t *oid_in, u8_t oid_len, const struct snmp_oid_range *oid_ranges, u8_t oid_ranges_len);
typedef enum {
SNMP_NEXT_OID_STATUS_SUCCESS,
SNMP_NEXT_OID_STATUS_NO_MATCH,
SNMP_NEXT_OID_STATUS_BUF_TO_SMALL
} snmp_next_oid_status_t;
/** state for next_oid_init / next_oid_check functions */
struct snmp_next_oid_state
{
const u32_t* start_oid;
u8_t start_oid_len;
u32_t* next_oid;
u8_t next_oid_len;
u8_t next_oid_max_len;
snmp_next_oid_status_t status;
void* reference;
};
void snmp_next_oid_init(struct snmp_next_oid_state *state,
const u32_t *start_oid, u8_t start_oid_len,
u32_t *next_oid_buf, u8_t next_oid_max_len);
u8_t snmp_next_oid_precheck(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len);
u8_t snmp_next_oid_check(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len, void* reference);
void snmp_oid_assign(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len);
void snmp_oid_combine(struct snmp_obj_id* target, const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len);
void snmp_oid_prefix(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len);
void snmp_oid_append(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len);
u8_t snmp_oid_equal(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len);
s8_t snmp_oid_compare(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len);
#if LWIP_IPV4
u8_t snmp_oid_to_ip4(const u32_t *oid, ip4_addr_t *ip);
void snmp_ip4_to_oid(const ip4_addr_t *ip, u32_t *oid);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
u8_t snmp_oid_to_ip6(const u32_t *oid, ip6_addr_t *ip);
void snmp_ip6_to_oid(const ip6_addr_t *ip, u32_t *oid);
#endif /* LWIP_IPV6 */
#if LWIP_IPV4 || LWIP_IPV6
u8_t snmp_ip_to_oid(const ip_addr_t *ip, u32_t *oid);
u8_t snmp_ip_port_to_oid(const ip_addr_t *ip, u16_t port, u32_t *oid);
u8_t snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip);
u8_t snmp_oid_to_ip_port(const u32_t *oid, u8_t oid_len, ip_addr_t *ip, u16_t *port);
#endif /* LWIP_IPV4 || LWIP_IPV6 */
struct netif;
u8_t netif_to_num(const struct netif *netif);
snmp_err_t snmp_set_test_ok(struct snmp_node_instance* instance, u16_t value_len, void* value); /* generic function which can be used if test is always successful */
err_t snmp_decode_bits(const u8_t *buf, u32_t buf_len, u32_t *bit_value);
err_t snmp_decode_truthvalue(const s32_t *asn1_value, u8_t *bool_value);
u8_t snmp_encode_bits(u8_t *buf, u32_t buf_len, u32_t bit_value, u8_t bit_count);
u8_t snmp_encode_truthvalue(s32_t *asn1_value, u32_t bool_value);
struct snmp_statistics
{
u32_t inpkts;
u32_t outpkts;
u32_t inbadversions;
u32_t inbadcommunitynames;
u32_t inbadcommunityuses;
u32_t inasnparseerrs;
u32_t intoobigs;
u32_t innosuchnames;
u32_t inbadvalues;
u32_t inreadonlys;
u32_t ingenerrs;
u32_t intotalreqvars;
u32_t intotalsetvars;
u32_t ingetrequests;
u32_t ingetnexts;
u32_t insetrequests;
u32_t ingetresponses;
u32_t intraps;
u32_t outtoobigs;
u32_t outnosuchnames;
u32_t outbadvalues;
u32_t outgenerrs;
u32_t outgetrequests;
u32_t outgetnexts;
u32_t outsetrequests;
u32_t outgetresponses;
u32_t outtraps;
#if LWIP_SNMP_V3
u32_t unsupportedseclevels;
u32_t notintimewindows;
u32_t unknownusernames;
u32_t unknownengineids;
u32_t wrongdigests;
u32_t decryptionerrors;
#endif
};
extern struct snmp_statistics snmp_stats;
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SNMP */
#endif /* LWIP_HDR_APPS_SNMP_CORE_H */

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/**
* @file
* SNMP MIB2 API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Dirk Ziegelmeier <dziegel@gmx.de>
*
*/
#ifndef LWIP_HDR_APPS_SNMP_MIB2_H
#define LWIP_HDR_APPS_SNMP_MIB2_H
#include "lwip/apps/snmp_opts.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#if SNMP_LWIP_MIB2
#include "lwip/apps/snmp_core.h"
extern const struct snmp_mib mib2;
#if SNMP_USE_NETCONN
#include "lwip/apps/snmp_threadsync.h"
void snmp_mib2_lwip_synchronizer(snmp_threadsync_called_fn fn, void* arg);
extern struct snmp_threadsync_instance snmp_mib2_lwip_locks;
#endif
#ifndef SNMP_SYSSERVICES
#define SNMP_SYSSERVICES ((1 << 6) | (1 << 3) | ((IP_FORWARD) << 2))
#endif
void snmp_mib2_set_sysdescr(const u8_t* str, const u16_t* len); /* read-only be defintion */
void snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize);
void snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen);
void snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize);
void snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen);
void snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize);
void snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen);
#endif /* SNMP_LWIP_MIB2 */
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_MIB2_H */

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/**
* @file
* SNMP server options list
*/
/*
* Copyright (c) 2015 Dirk Ziegelmeier
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Dirk Ziegelmeier
*
*/
#ifndef LWIP_HDR_SNMP_OPTS_H
#define LWIP_HDR_SNMP_OPTS_H
#include "lwip/opt.h"
/**
* @defgroup snmp_opts Options
* @ingroup snmp
* @{
*/
/**
* LWIP_SNMP==1: This enables the lwIP SNMP agent. UDP must be available
* for SNMP transport.
* If you want to use your own SNMP agent, leave this disabled.
* To integrate MIB2 of an external agent, you need to enable
* LWIP_MIB2_CALLBACKS and MIB2_STATS. This will give you the callbacks
* and statistics counters you need to get MIB2 working.
*/
#if !defined LWIP_SNMP || defined __DOXYGEN__
#define LWIP_SNMP 0
#endif
/**
* SNMP_USE_NETCONN: Use netconn API instead of raw API.
* Makes SNMP agent run in a worker thread, so blocking operations
* can be done in MIB calls.
*/
#if !defined SNMP_USE_NETCONN || defined __DOXYGEN__
#define SNMP_USE_NETCONN 0
#endif
/**
* SNMP_USE_RAW: Use raw API.
* SNMP agent does not run in a worker thread, so blocking operations
* should not be done in MIB calls.
*/
#if !defined SNMP_USE_RAW || defined __DOXYGEN__
#define SNMP_USE_RAW 1
#endif
#if SNMP_USE_NETCONN && SNMP_USE_RAW
#error SNMP stack can use only one of the APIs {raw, netconn}
#endif
#if LWIP_SNMP && !SNMP_USE_NETCONN && !SNMP_USE_RAW
#error SNMP stack needs a receive API and UDP {raw, netconn}
#endif
#if SNMP_USE_NETCONN
/**
* SNMP_STACK_SIZE: Stack size of SNMP netconn worker thread
*/
#if !defined SNMP_STACK_SIZE || defined __DOXYGEN__
#define SNMP_STACK_SIZE DEFAULT_THREAD_STACKSIZE
#endif
/**
* SNMP_THREAD_PRIO: SNMP netconn worker thread priority
*/
#if !defined SNMP_THREAD_PRIO || defined __DOXYGEN__
#define SNMP_THREAD_PRIO DEFAULT_THREAD_PRIO
#endif
#endif /* SNMP_USE_NETCONN */
/**
* SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
* destination is required
*/
#if !defined SNMP_TRAP_DESTINATIONS || defined __DOXYGEN__
#define SNMP_TRAP_DESTINATIONS 1
#endif
/**
* Only allow SNMP write actions that are 'safe' (e.g. disabling netifs is not
* a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
* Unsafe requests are disabled by default!
*/
#if !defined SNMP_SAFE_REQUESTS || defined __DOXYGEN__
#define SNMP_SAFE_REQUESTS 1
#endif
/**
* The maximum length of strings used.
*/
#if !defined SNMP_MAX_OCTET_STRING_LEN || defined __DOXYGEN__
#define SNMP_MAX_OCTET_STRING_LEN 127
#endif
/**
* The maximum number of Sub ID's inside an object identifier.
* Indirectly this also limits the maximum depth of SNMP tree.
*/
#if !defined SNMP_MAX_OBJ_ID_LEN || defined __DOXYGEN__
#define SNMP_MAX_OBJ_ID_LEN 50
#endif
#if !defined SNMP_MAX_VALUE_SIZE || defined __DOXYGEN__
/**
* The minimum size of a value.
*/
#define SNMP_MIN_VALUE_SIZE (2 * sizeof(u32_t*)) /* size required to store the basic types (8 bytes for counter64) */
/**
* The maximum size of a value.
*/
#define SNMP_MAX_VALUE_SIZE LWIP_MAX(LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN), sizeof(u32_t)*(SNMP_MAX_OBJ_ID_LEN)), SNMP_MIN_VALUE_SIZE)
#endif
/**
* The snmp read-access community. Used for write-access and traps, too
* unless SNMP_COMMUNITY_WRITE or SNMP_COMMUNITY_TRAP are enabled, respectively.
*/
#if !defined SNMP_COMMUNITY || defined __DOXYGEN__
#define SNMP_COMMUNITY "public"
#endif
/**
* The snmp write-access community.
* Set this community to "" in order to disallow any write access.
*/
#if !defined SNMP_COMMUNITY_WRITE || defined __DOXYGEN__
#define SNMP_COMMUNITY_WRITE "private"
#endif
/**
* The snmp community used for sending traps.
*/
#if !defined SNMP_COMMUNITY_TRAP || defined __DOXYGEN__
#define SNMP_COMMUNITY_TRAP "public"
#endif
/**
* The maximum length of community string.
* If community names shall be adjusted at runtime via snmp_set_community() calls,
* enter here the possible maximum length (+1 for terminating null character).
*/
#if !defined SNMP_MAX_COMMUNITY_STR_LEN || defined __DOXYGEN__
#define SNMP_MAX_COMMUNITY_STR_LEN LWIP_MAX(LWIP_MAX(sizeof(SNMP_COMMUNITY), sizeof(SNMP_COMMUNITY_WRITE)), sizeof(SNMP_COMMUNITY_TRAP))
#endif
/**
* The OID identifiying the device. This may be the enterprise OID itself or any OID located below it in tree.
*/
#if !defined SNMP_DEVICE_ENTERPRISE_OID || defined __DOXYGEN__
#define SNMP_LWIP_ENTERPRISE_OID 26381
/**
* IANA assigned enterprise ID for lwIP is 26381
* @see http://www.iana.org/assignments/enterprise-numbers
*
* @note this enterprise ID is assigned to the lwIP project,
* all object identifiers living under this ID are assigned
* by the lwIP maintainers!
* @note don't change this define, use snmp_set_device_enterprise_oid()
*
* If you need to create your own private MIB you'll need
* to apply for your own enterprise ID with IANA:
* http://www.iana.org/numbers.html
*/
#define SNMP_DEVICE_ENTERPRISE_OID {1, 3, 6, 1, 4, 1, SNMP_LWIP_ENTERPRISE_OID}
/**
* Length of SNMP_DEVICE_ENTERPRISE_OID
*/
#define SNMP_DEVICE_ENTERPRISE_OID_LEN 7
#endif
/**
* SNMP_DEBUG: Enable debugging for SNMP messages.
*/
#if !defined SNMP_DEBUG || defined __DOXYGEN__
#define SNMP_DEBUG LWIP_DBG_OFF
#endif
/**
* SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.
*/
#if !defined SNMP_MIB_DEBUG || defined __DOXYGEN__
#define SNMP_MIB_DEBUG LWIP_DBG_OFF
#endif
/**
* Indicates if the MIB2 implementation of LWIP SNMP stack is used.
*/
#if !defined SNMP_LWIP_MIB2 || defined __DOXYGEN__
#define SNMP_LWIP_MIB2 LWIP_SNMP
#endif
/**
* Value return for sysDesc field of MIB2.
*/
#if !defined SNMP_LWIP_MIB2_SYSDESC || defined __DOXYGEN__
#define SNMP_LWIP_MIB2_SYSDESC "lwIP"
#endif
/**
* Value return for sysName field of MIB2.
* To make sysName field settable, call snmp_mib2_set_sysname() to provide the necessary buffers.
*/
#if !defined SNMP_LWIP_MIB2_SYSNAME || defined __DOXYGEN__
#define SNMP_LWIP_MIB2_SYSNAME "FQDN-unk"
#endif
/**
* Value return for sysContact field of MIB2.
* To make sysContact field settable, call snmp_mib2_set_syscontact() to provide the necessary buffers.
*/
#if !defined SNMP_LWIP_MIB2_SYSCONTACT || defined __DOXYGEN__
#define SNMP_LWIP_MIB2_SYSCONTACT ""
#endif
/**
* Value return for sysLocation field of MIB2.
* To make sysLocation field settable, call snmp_mib2_set_syslocation() to provide the necessary buffers.
*/
#if !defined SNMP_LWIP_MIB2_SYSLOCATION || defined __DOXYGEN__
#define SNMP_LWIP_MIB2_SYSLOCATION ""
#endif
/**
* This value is used to limit the repetitions processed in GetBulk requests (value == 0 means no limitation).
* This may be useful to limit the load for a single request.
* According to SNMP RFC 1905 it is allowed to not return all requested variables from a GetBulk request if system load would be too high.
* so the effect is that the client will do more requests to gather all data.
* For the stack this could be useful in case that SNMP processing is done in TCP/IP thread. In this situation a request with many
* repetitions could block the thread for a longer time. Setting limit here will keep the stack more responsive.
*/
#if !defined SNMP_LWIP_GETBULK_MAX_REPETITIONS || defined __DOXYGEN__
#define SNMP_LWIP_GETBULK_MAX_REPETITIONS 0
#endif
/**
* @}
*/
/*
------------------------------------
---------- SNMPv3 options ----------
------------------------------------
*/
/**
* LWIP_SNMP_V3==1: This enables EXPERIMENTAL SNMPv3 support. LWIP_SNMP must
* also be enabled.
* THIS IS UNDER DEVELOPMENT AND SHOULD NOT BE ENABLED IN PRODUCTS.
*/
#ifndef LWIP_SNMP_V3
#define LWIP_SNMP_V3 0
#endif
#ifndef LWIP_SNMP_V3_MBEDTLS
#define LWIP_SNMP_V3_MBEDTLS LWIP_SNMP_V3
#endif
#ifndef LWIP_SNMP_V3_CRYPTO
#define LWIP_SNMP_V3_CRYPTO LWIP_SNMP_V3_MBEDTLS
#endif
#ifndef LWIP_SNMP_CONFIGURE_VERSIONS
#define LWIP_SNMP_CONFIGURE_VERSIONS 0
#endif
#endif /* LWIP_HDR_SNMP_OPTS_H */

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/**
* @file
* SNMP server MIB API to implement scalar nodes
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Martin Hentschel <info@cl-soft.de>
*
*/
#ifndef LWIP_HDR_APPS_SNMP_SCALAR_H
#define LWIP_HDR_APPS_SNMP_SCALAR_H
#include "lwip/apps/snmp_opts.h"
#include "lwip/apps/snmp_core.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
/** basic scalar node */
struct snmp_scalar_node
{
/** inherited "base class" members */
struct snmp_leaf_node node;
u8_t asn1_type;
snmp_access_t access;
node_instance_get_value_method get_value;
node_instance_set_test_method set_test;
node_instance_set_value_method set_value;
};
snmp_err_t snmp_scalar_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t snmp_scalar_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
#define SNMP_SCALAR_CREATE_NODE(oid, access, asn1_type, get_value_method, set_test_method, set_value_method) \
{{{ SNMP_NODE_SCALAR, (oid) }, \
snmp_scalar_get_instance, \
snmp_scalar_get_next_instance }, \
(asn1_type), (access), (get_value_method), (set_test_method), (set_value_method) }
#define SNMP_SCALAR_CREATE_NODE_READONLY(oid, asn1_type, get_value_method) SNMP_SCALAR_CREATE_NODE(oid, SNMP_NODE_INSTANCE_READ_ONLY, asn1_type, get_value_method, NULL, NULL)
/** scalar array node - a tree node which contains scalars only as children */
struct snmp_scalar_array_node_def
{
u32_t oid;
u8_t asn1_type;
snmp_access_t access;
};
typedef s16_t (*snmp_scalar_array_get_value_method)(const struct snmp_scalar_array_node_def*, void*);
typedef snmp_err_t (*snmp_scalar_array_set_test_method)(const struct snmp_scalar_array_node_def*, u16_t, void*);
typedef snmp_err_t (*snmp_scalar_array_set_value_method)(const struct snmp_scalar_array_node_def*, u16_t, void*);
/** basic scalar array node */
struct snmp_scalar_array_node
{
/** inherited "base class" members */
struct snmp_leaf_node node;
u16_t array_node_count;
const struct snmp_scalar_array_node_def* array_nodes;
snmp_scalar_array_get_value_method get_value;
snmp_scalar_array_set_test_method set_test;
snmp_scalar_array_set_value_method set_value;
};
snmp_err_t snmp_scalar_array_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t snmp_scalar_array_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
#define SNMP_SCALAR_CREATE_ARRAY_NODE(oid, array_nodes, get_value_method, set_test_method, set_value_method) \
{{{ SNMP_NODE_SCALAR_ARRAY, (oid) }, \
snmp_scalar_array_get_instance, \
snmp_scalar_array_get_next_instance }, \
(u16_t)LWIP_ARRAYSIZE(array_nodes), (array_nodes), (get_value_method), (set_test_method), (set_value_method) }
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_SCALAR_H */

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/*
Generated by LwipMibCompiler
*/
#ifndef LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H
#define LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H
#include "lwip/apps/snmp_opts.h"
#if LWIP_SNMP
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "lwip/apps/snmp_core.h"
extern const struct snmp_obj_id usmNoAuthProtocol;
extern const struct snmp_obj_id usmHMACMD5AuthProtocol;
extern const struct snmp_obj_id usmHMACSHAAuthProtocol;
extern const struct snmp_obj_id usmNoPrivProtocol;
extern const struct snmp_obj_id usmDESPrivProtocol;
extern const struct snmp_obj_id usmAESPrivProtocol;
extern const struct snmp_mib snmpframeworkmib;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LWIP_SNMP */
#endif /* LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H */

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/*
Generated by LwipMibCompiler
*/
#ifndef LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H
#define LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H
#include "lwip/apps/snmp_opts.h"
#if LWIP_SNMP
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "lwip/apps/snmp_core.h"
extern const struct snmp_mib snmpusmmib;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LWIP_SNMP */
#endif /* LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H */

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/**
* @file
* SNMP server MIB API to implement table nodes
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Martin Hentschel <info@cl-soft.de>
*
*/
#ifndef LWIP_HDR_APPS_SNMP_TABLE_H
#define LWIP_HDR_APPS_SNMP_TABLE_H
#include "lwip/apps/snmp_opts.h"
#include "lwip/apps/snmp_core.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
/** default (customizable) read/write table */
struct snmp_table_col_def
{
u32_t index;
u8_t asn1_type;
snmp_access_t access;
};
/** table node */
struct snmp_table_node
{
/** inherited "base class" members */
struct snmp_leaf_node node;
u16_t column_count;
const struct snmp_table_col_def* columns;
snmp_err_t (*get_cell_instance)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, struct snmp_node_instance* cell_instance);
snmp_err_t (*get_next_cell_instance)(const u32_t* column, struct snmp_obj_id* row_oid, struct snmp_node_instance* cell_instance);
/** returns object value for the given object identifier */
node_instance_get_value_method get_value;
/** tests length and/or range BEFORE setting */
node_instance_set_test_method set_test;
/** sets object value, only called when set_test() was successful */
node_instance_set_value_method set_value;
};
snmp_err_t snmp_table_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t snmp_table_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
#define SNMP_TABLE_CREATE(oid, columns, get_cell_instance_method, get_next_cell_instance_method, get_value_method, set_test_method, set_value_method) \
{{{ SNMP_NODE_TABLE, (oid) }, \
snmp_table_get_instance, \
snmp_table_get_next_instance }, \
(u16_t)LWIP_ARRAYSIZE(columns), (columns), \
(get_cell_instance_method), (get_next_cell_instance_method), \
(get_value_method), (set_test_method), (set_value_method)}
#define SNMP_TABLE_GET_COLUMN_FROM_OID(oid) ((oid)[1]) /* first array value is (fixed) row entry (fixed to 1) and 2nd value is column, follow3ed by instance */
/** simple read-only table */
typedef enum {
SNMP_VARIANT_VALUE_TYPE_U32,
SNMP_VARIANT_VALUE_TYPE_S32,
SNMP_VARIANT_VALUE_TYPE_PTR,
SNMP_VARIANT_VALUE_TYPE_CONST_PTR
} snmp_table_column_data_type_t;
struct snmp_table_simple_col_def
{
u32_t index;
u8_t asn1_type;
snmp_table_column_data_type_t data_type; /* depending of what union member is used to store the value*/
};
/** simple read-only table node */
struct snmp_table_simple_node
{
/* inherited "base class" members */
struct snmp_leaf_node node;
u16_t column_count;
const struct snmp_table_simple_col_def* columns;
snmp_err_t (*get_cell_value)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len);
snmp_err_t (*get_next_cell_instance_and_value)(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len);
};
snmp_err_t snmp_table_simple_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t snmp_table_simple_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
#define SNMP_TABLE_CREATE_SIMPLE(oid, columns, get_cell_value_method, get_next_cell_instance_and_value_method) \
{{{ SNMP_NODE_TABLE, (oid) }, \
snmp_table_simple_get_instance, \
snmp_table_simple_get_next_instance }, \
(u16_t)LWIP_ARRAYSIZE(columns), (columns), (get_cell_value_method), (get_next_cell_instance_and_value_method) }
s16_t snmp_table_extract_value_from_s32ref(struct snmp_node_instance* instance, void* value);
s16_t snmp_table_extract_value_from_u32ref(struct snmp_node_instance* instance, void* value);
s16_t snmp_table_extract_value_from_refconstptr(struct snmp_node_instance* instance, void* value);
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_TABLE_H */

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/**
* @file
* SNMP server MIB API to implement thread synchronization
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Dirk Ziegelmeier <dziegel@gmx.de>
*
*/
#ifndef LWIP_HDR_APPS_SNMP_THREADSYNC_H
#define LWIP_HDR_APPS_SNMP_THREADSYNC_H
#include "lwip/apps/snmp_opts.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#include "lwip/apps/snmp_core.h"
#include "lwip/sys.h"
typedef void (*snmp_threadsync_called_fn)(void* arg);
typedef void (*snmp_threadsync_synchronizer_fn)(snmp_threadsync_called_fn fn, void* arg);
/** Thread sync runtime data. For internal usage only. */
struct threadsync_data
{
union {
snmp_err_t err;
s16_t s16;
} retval;
union {
const u32_t *root_oid;
void *value;
} arg1;
union {
u8_t root_oid_len;
u16_t len;
} arg2;
const struct snmp_threadsync_node *threadsync_node;
struct snmp_node_instance proxy_instance;
};
/** Thread sync instance. Needed EXCATLY once for every thread to be synced into. */
struct snmp_threadsync_instance
{
sys_sem_t sem;
sys_mutex_t sem_usage_mutex;
snmp_threadsync_synchronizer_fn sync_fn;
struct threadsync_data data;
};
/** SNMP thread sync proxy leaf node */
struct snmp_threadsync_node
{
/* inherited "base class" members */
struct snmp_leaf_node node;
const struct snmp_leaf_node *target;
struct snmp_threadsync_instance *instance;
};
snmp_err_t snmp_threadsync_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
snmp_err_t snmp_threadsync_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
/** Create thread sync proxy node */
#define SNMP_CREATE_THREAD_SYNC_NODE(oid, target_leaf_node, threadsync_instance) \
{{{ SNMP_NODE_THREADSYNC, (oid) }, \
snmp_threadsync_get_instance, \
snmp_threadsync_get_next_instance }, \
(target_leaf_node), \
(threadsync_instance) }
/** Create thread sync instance data */
void snmp_threadsync_init(struct snmp_threadsync_instance *instance, snmp_threadsync_synchronizer_fn sync_fn);
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_THREADSYNC_H */

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/**
* @file
* Additional SNMPv3 functionality RFC3414 and RFC3826.
*/
/*
* Copyright (c) 2016 Elias Oenal.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Elias Oenal <lwip@eliasoenal.com>
*/
#ifndef LWIP_HDR_APPS_SNMP_V3_H
#define LWIP_HDR_APPS_SNMP_V3_H
#include "lwip/apps/snmp_opts.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_SNMP && LWIP_SNMP_V3
typedef enum
{
SNMP_V3_AUTH_ALGO_INVAL = 0,
SNMP_V3_AUTH_ALGO_MD5 = 1,
SNMP_V3_AUTH_ALGO_SHA = 2
} snmpv3_auth_algo_t;
typedef enum
{
SNMP_V3_PRIV_ALGO_INVAL = 0,
SNMP_V3_PRIV_ALGO_DES = 1,
SNMP_V3_PRIV_ALGO_AES = 2
} snmpv3_priv_algo_t;
typedef enum
{
SNMP_V3_USER_STORAGETYPE_OTHER = 1,
SNMP_V3_USER_STORAGETYPE_VOLATILE = 2,
SNMP_V3_USER_STORAGETYPE_NONVOLATILE = 3,
SNMP_V3_USER_STORAGETYPE_PERMANENT = 4,
SNMP_V3_USER_STORAGETYPE_READONLY = 5
} snmpv3_user_storagetype_t;
/*
* The following callback functions must be implemented by the application.
* There is a dummy implementation in snmpv3_dummy.c.
*/
void snmpv3_get_engine_id(const char **id, u8_t *len);
err_t snmpv3_set_engine_id(const char* id, u8_t len);
u32_t snmpv3_get_engine_boots(void);
void snmpv3_set_engine_boots(u32_t boots);
u32_t snmpv3_get_engine_time(void);
void snmpv3_reset_engine_time(void);
err_t snmpv3_get_user(const char* username, snmpv3_auth_algo_t *auth_algo, u8_t *auth_key, snmpv3_priv_algo_t *priv_algo, u8_t *priv_key);
u8_t snmpv3_get_amount_of_users(void);
err_t snmpv3_get_user_storagetype(const char *username, snmpv3_user_storagetype_t *storagetype);
err_t snmpv3_get_username(char *username, u8_t index);
/* The following functions are provided by the SNMPv3 agent */
void snmpv3_engine_id_changed(void);
s32_t snmpv3_get_engine_time_internal(void);
void snmpv3_password_to_key_md5(
const u8_t *password, /* IN */
size_t passwordlen, /* IN */
const u8_t *engineID, /* IN - pointer to snmpEngineID */
u8_t engineLength, /* IN - length of snmpEngineID */
u8_t *key); /* OUT - pointer to caller 16-octet buffer */
void snmpv3_password_to_key_sha(
const u8_t *password, /* IN */
size_t passwordlen, /* IN */
const u8_t *engineID, /* IN - pointer to snmpEngineID */
u8_t engineLength, /* IN - length of snmpEngineID */
u8_t *key); /* OUT - pointer to caller 20-octet buffer */
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNMP_V3_H */

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/**
* @file
* SNTP client API
*/
/*
* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Frédéric Bernon, Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_APPS_SNTP_H
#define LWIP_HDR_APPS_SNTP_H
#include "lwip/apps/sntp_opts.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/* SNTP operating modes: default is to poll using unicast.
The mode has to be set before calling sntp_init(). */
#define SNTP_OPMODE_POLL 0
#define SNTP_OPMODE_LISTENONLY 1
void sntp_setoperatingmode(u8_t operating_mode);
u8_t sntp_getoperatingmode(void);
void sntp_init(void);
void sntp_stop(void);
u8_t sntp_enabled(void);
void sntp_setserver(u8_t idx, const ip_addr_t *addr);
const ip_addr_t* sntp_getserver(u8_t idx);
#if SNTP_MONITOR_SERVER_REACHABILITY
u8_t sntp_getreachability(u8_t idx);
#endif /* SNTP_MONITOR_SERVER_REACHABILITY */
#if SNTP_SERVER_DNS
void sntp_setservername(u8_t idx, const char *server);
const char *sntp_getservername(u8_t idx);
#endif /* SNTP_SERVER_DNS */
#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6
void sntp_servermode_dhcp(int set_servers_from_dhcp);
#else /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */
#define sntp_servermode_dhcp(x)
#endif /* SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6 */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_SNTP_H */

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/**
* @file
* SNTP client options list
*/
/*
* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Frédéric Bernon, Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_APPS_SNTP_OPTS_H
#define LWIP_HDR_APPS_SNTP_OPTS_H
#include "lwip/opt.h"
#include "lwip/prot/iana.h"
/**
* @defgroup sntp_opts Options
* @ingroup sntp
* @{
*/
/** SNTP macro to change system time in seconds
* Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds
* instead of this one if you need the additional precision. Alternatively,
* define SNTP_SET_SYSTEM_TIME_NTP(sec, frac) in order to work with native
* NTP timestamps instead.
*/
#if !defined SNTP_SET_SYSTEM_TIME || defined __DOXYGEN__
#define SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec)
#endif
/** The maximum number of SNTP servers that can be set */
#if !defined SNTP_MAX_SERVERS || defined __DOXYGEN__
#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS
#endif
/** Set this to 1 to implement the callback function called by dhcp when
* NTP servers are received. */
#if !defined SNTP_GET_SERVERS_FROM_DHCP || defined __DOXYGEN__
#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV
#endif
/** Set this to 1 to implement the callback function called by dhcpv6 when
* NTP servers are received. */
#if !defined SNTP_GET_SERVERS_FROM_DHCPV6 || defined __DOXYGEN__
#define SNTP_GET_SERVERS_FROM_DHCPV6 LWIP_DHCP6_GET_NTP_SRV
#endif
/** Set this to 1 to support DNS names (or IP address strings) to set sntp servers
* One server address/name can be defined as default if SNTP_SERVER_DNS == 1:
* \#define SNTP_SERVER_ADDRESS "pool.ntp.org"
*/
#if !defined SNTP_SERVER_DNS || defined __DOXYGEN__
#define SNTP_SERVER_DNS 0
#endif
/**
* SNTP_DEBUG: Enable debugging for SNTP.
*/
#if !defined SNTP_DEBUG || defined __DOXYGEN__
#define SNTP_DEBUG LWIP_DBG_OFF
#endif
/** SNTP server port */
#if !defined SNTP_PORT || defined __DOXYGEN__
#define SNTP_PORT LWIP_IANA_PORT_SNTP
#endif
/** Sanity check:
* Define this to
* - 0 to turn off sanity checks (default; smaller code)
* - >= 1 to check address and port of the response packet to ensure the
* response comes from the server we sent the request to.
* - >= 2 to check returned Originate Timestamp against Transmit Timestamp
* sent to the server (to ensure response to older request).
* - >= 3 @todo: discard reply if any of the VN, Stratum, or Transmit Timestamp
* fields is 0 or the Mode field is not 4 (unicast) or 5 (broadcast).
* - >= 4 @todo: to check that the Root Delay and Root Dispersion fields are each
* greater than or equal to 0 and less than infinity, where infinity is
* currently a cozy number like one second. This check avoids using a
* server whose synchronization source has expired for a very long time.
*/
#if !defined SNTP_CHECK_RESPONSE || defined __DOXYGEN__
#define SNTP_CHECK_RESPONSE 0
#endif
/** Enable round-trip delay compensation.
* Compensate for the round-trip delay by calculating the clock offset from
* the originate, receive, transmit and destination timestamps, as per RFC.
*
* The calculation requires compiler support for 64-bit integers. Also, either
* SNTP_SET_SYSTEM_TIME_US or SNTP_SET_SYSTEM_TIME_NTP has to be implemented
* for setting the system clock with sub-second precision. Likewise, either
* SNTP_GET_SYSTEM_TIME or SNTP_GET_SYSTEM_TIME_NTP needs to be implemented
* with sub-second precision.
*
* Although not strictly required, it makes sense to combine this option with
* SNTP_CHECK_RESPONSE >= 2 for sanity-checking of the received timestamps.
* Also, in order for the round-trip calculation to work, the difference
* between the local clock and the NTP server clock must not be larger than
* about 34 years. If that limit is exceeded, the implementation will fall back
* to setting the clock without compensation. In order to ensure that the local
* clock is always within the permitted range for compensation, even at first
* try, it may be necessary to store at least the current year in non-volatile
* memory.
*/
#if !defined SNTP_COMP_ROUNDTRIP || defined __DOXYGEN__
#define SNTP_COMP_ROUNDTRIP 0
#endif
/** According to the RFC, this shall be a random delay
* between 1 and 5 minutes (in milliseconds) to prevent load peaks.
* This can be defined to a random generation function,
* which must return the delay in milliseconds as u32_t.
* Turned off by default.
*/
#if !defined SNTP_STARTUP_DELAY || defined __DOXYGEN__
#ifdef LWIP_RAND
#define SNTP_STARTUP_DELAY 1
#else
#define SNTP_STARTUP_DELAY 0
#endif
#endif
/** If you want the startup delay to be a function, define this
* to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1.
*/
#if !defined SNTP_STARTUP_DELAY_FUNC || defined __DOXYGEN__
#define SNTP_STARTUP_DELAY_FUNC (LWIP_RAND() % 5000)
#endif
/** SNTP receive timeout - in milliseconds
* Also used as retry timeout - this shouldn't be too low.
* Default is 15 seconds. Must not be beolw 15 seconds by specification (i.e. 15000)
*/
#if !defined SNTP_RECV_TIMEOUT || defined __DOXYGEN__
#define SNTP_RECV_TIMEOUT 15000
#endif
/** SNTP update delay - in milliseconds
* Default is 1 hour. Must not be beolw 60 seconds by specification (i.e. 60000)
*/
#if !defined SNTP_UPDATE_DELAY || defined __DOXYGEN__
#define SNTP_UPDATE_DELAY 3600000
#endif
/** SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2
* to send in request and compare in response. Also used for round-trip
* delay compensation if SNTP_COMP_ROUNDTRIP != 0.
* Alternatively, define SNTP_GET_SYSTEM_TIME_NTP(sec, frac) in order to
* work with native NTP timestamps instead.
*/
#if !defined SNTP_GET_SYSTEM_TIME || defined __DOXYGEN__
#define SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0)
#endif
/** Default retry timeout (in milliseconds) if the response
* received is invalid.
* This is doubled with each retry until SNTP_RETRY_TIMEOUT_MAX is reached.
*/
#if !defined SNTP_RETRY_TIMEOUT || defined __DOXYGEN__
#define SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT
#endif
/** Maximum retry timeout (in milliseconds). */
#if !defined SNTP_RETRY_TIMEOUT_MAX || defined __DOXYGEN__
#define SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10)
#endif
/** Increase retry timeout with every retry sent
* Default is on to conform to RFC.
*/
#if !defined SNTP_RETRY_TIMEOUT_EXP || defined __DOXYGEN__
#define SNTP_RETRY_TIMEOUT_EXP 1
#endif
/** Keep a reachability shift register per server
* Default is on to conform to RFC.
*/
#if !defined SNTP_MONITOR_SERVER_REACHABILITY || defined __DOXYGEN__
#define SNTP_MONITOR_SERVER_REACHABILITY 1
#endif
/**
* @}
*/
#endif /* LWIP_HDR_APPS_SNTP_OPTS_H */

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/**
*
* @file tftp_opts.h
*
* @author Logan Gunthorpe <logang@deltatee.com>
*
* @brief Trivial File Transfer Protocol (RFC 1350) implementation options
*
* Copyright (c) Deltatee Enterprises Ltd. 2013
* All rights reserved.
*
*/
/*
* Redistribution and use in source and binary forms, with or without
* modification,are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Logan Gunthorpe <logang@deltatee.com>
*
*/
#ifndef LWIP_HDR_APPS_TFTP_OPTS_H
#define LWIP_HDR_APPS_TFTP_OPTS_H
#include "lwip/opt.h"
#include "lwip/prot/iana.h"
/**
* @defgroup tftp_opts Options
* @ingroup tftp
* @{
*/
/**
* Enable TFTP debug messages
*/
#if !defined TFTP_DEBUG || defined __DOXYGEN__
#define TFTP_DEBUG LWIP_DBG_OFF
#endif
/**
* TFTP server port
*/
#if !defined TFTP_PORT || defined __DOXYGEN__
#define TFTP_PORT LWIP_IANA_PORT_TFTP
#endif
/**
* TFTP timeout
*/
#if !defined TFTP_TIMEOUT_MSECS || defined __DOXYGEN__
#define TFTP_TIMEOUT_MSECS 10000
#endif
/**
* Max. number of retries when a file is read from server
*/
#if !defined TFTP_MAX_RETRIES || defined __DOXYGEN__
#define TFTP_MAX_RETRIES 5
#endif
/**
* TFTP timer cyclic interval
*/
#if !defined TFTP_TIMER_MSECS || defined __DOXYGEN__
#define TFTP_TIMER_MSECS (TFTP_TIMEOUT_MSECS / 10)
#endif
/**
* Max. length of TFTP filename
*/
#if !defined TFTP_MAX_FILENAME_LEN || defined __DOXYGEN__
#define TFTP_MAX_FILENAME_LEN 20
#endif
/**
* Max. length of TFTP mode
*/
#if !defined TFTP_MAX_MODE_LEN || defined __DOXYGEN__
#define TFTP_MAX_MODE_LEN 7
#endif
/**
* @}
*/
#endif /* LWIP_HDR_APPS_TFTP_OPTS_H */

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/**
*
* @file tftp_server.h
*
* @author Logan Gunthorpe <logang@deltatee.com>
*
* @brief Trivial File Transfer Protocol (RFC 1350)
*
* Copyright (c) Deltatee Enterprises Ltd. 2013
* All rights reserved.
*
*/
/*
* Redistribution and use in source and binary forms, with or without
* modification,are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Logan Gunthorpe <logang@deltatee.com>
*
*/
#ifndef LWIP_HDR_APPS_TFTP_SERVER_H
#define LWIP_HDR_APPS_TFTP_SERVER_H
#include "lwip/apps/tftp_opts.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @ingroup tftp
* TFTP context containing callback functions for TFTP transfers
*/
struct tftp_context {
/**
* Open file for read/write.
* @param fname Filename
* @param mode Mode string from TFTP RFC 1350 (netascii, octet, mail)
* @param write Flag indicating read (0) or write (!= 0) access
* @returns File handle supplied to other functions
*/
void* (*open)(const char* fname, const char* mode, u8_t write);
/**
* Close file handle
* @param handle File handle returned by open()
*/
void (*close)(void* handle);
/**
* Read from file
* @param handle File handle returned by open()
* @param buf Target buffer to copy read data to
* @param bytes Number of bytes to copy to buf
* @returns &gt;= 0: Success; &lt; 0: Error
*/
int (*read)(void* handle, void* buf, int bytes);
/**
* Write to file
* @param handle File handle returned by open()
* @param pbuf PBUF adjusted such that payload pointer points
* to the beginning of write data. In other words,
* TFTP headers are stripped off.
* @returns &gt;= 0: Success; &lt; 0: Error
*/
int (*write)(void* handle, struct pbuf* p);
};
err_t tftp_init(const struct tftp_context* ctx);
void tftp_cleanup(void);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_APPS_TFTP_SERVER_H */

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/**
* @file
* Support for different processor and compiler architectures
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_ARCH_H
#define LWIP_HDR_ARCH_H
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif
#include "arch/cc.h"
/**
* @defgroup compiler_abstraction Compiler/platform abstraction
* @ingroup sys_layer
* All defines related to this section must not be placed in lwipopts.h,
* but in arch/cc.h!
* If the compiler does not provide memset() this file must include a
* definition of it, or include a file which defines it.
* These options cannot be \#defined in lwipopts.h since they are not options
* of lwIP itself, but options of the lwIP port to your system.
* @{
*/
/** Define the byte order of the system.
* Needed for conversion of network data to host byte order.
* Allowed values: LITTLE_ENDIAN and BIG_ENDIAN
*/
#ifndef BYTE_ORDER
#define BYTE_ORDER LITTLE_ENDIAN
#endif
/** Define random number generator function of your system */
#ifdef __DOXYGEN__
#define LWIP_RAND() ((u32_t)rand())
#endif
/** Platform specific diagnostic output.\n
* Note the default implementation pulls in printf, which may
* in turn pull in a lot of standard libary code. In resource-constrained
* systems, this should be defined to something less resource-consuming.
*/
#ifndef LWIP_PLATFORM_DIAG
#define LWIP_PLATFORM_DIAG(x) do {printf x;} while(0)
#include <stdio.h>
#include <stdlib.h>
#endif
/** Platform specific assertion handling.\n
* Note the default implementation pulls in printf, fflush and abort, which may
* in turn pull in a lot of standard libary code. In resource-constrained
* systems, this should be defined to something less resource-consuming.
*/
#ifndef LWIP_PLATFORM_ASSERT
#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \
x, __LINE__, __FILE__); fflush(NULL); abort();} while(0)
#include <stdio.h>
#include <stdlib.h>
#endif
/** Define this to 1 in arch/cc.h of your port if you do not want to
* include stddef.h header to get size_t. You need to typedef size_t
* by yourself in this case.
*/
#ifndef LWIP_NO_STDDEF_H
#define LWIP_NO_STDDEF_H 0
#endif
#if !LWIP_NO_STDDEF_H
#include <stddef.h> /* for size_t */
#endif
/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
* the stdint.h header. You need to typedef the generic types listed in
* lwip/arch.h yourself in this case (u8_t, u16_t...).
*/
#ifndef LWIP_NO_STDINT_H
#define LWIP_NO_STDINT_H 0
#endif
/* Define generic types used in lwIP */
#if !LWIP_NO_STDINT_H
#include <stdint.h>
/* stdint.h is C99 which should also provide support for 64-bit integers */
#if !defined(LWIP_HAVE_INT64) && defined(UINT64_MAX)
#define LWIP_HAVE_INT64 1
#endif
typedef uint8_t u8_t;
typedef int8_t s8_t;
typedef uint16_t u16_t;
typedef int16_t s16_t;
typedef uint32_t u32_t;
typedef int32_t s32_t;
#if LWIP_HAVE_INT64
typedef uint64_t u64_t;
typedef int64_t s64_t;
#endif
typedef uintptr_t mem_ptr_t;
#endif
/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
* the inttypes.h header. You need to define the format strings listed in
* lwip/arch.h yourself in this case (X8_F, U16_F...).
*/
#ifndef LWIP_NO_INTTYPES_H
#define LWIP_NO_INTTYPES_H 0
#endif
/* Define (sn)printf formatters for these lwIP types */
#if !LWIP_NO_INTTYPES_H
#include <inttypes.h>
#ifndef X8_F
#define X8_F "02" PRIx8
#endif
#ifndef U16_F
#define U16_F PRIu16
#endif
#ifndef S16_F
#define S16_F PRId16
#endif
#ifndef X16_F
#define X16_F PRIx16
#endif
#ifndef U32_F
#define U32_F PRIu32
#endif
#ifndef S32_F
#define S32_F PRId32
#endif
#ifndef X32_F
#define X32_F PRIx32
#endif
#ifndef SZT_F
#define SZT_F PRIuPTR
#endif
#endif
/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
* the limits.h header. You need to define the type limits yourself in this case
* (e.g. INT_MAX, SSIZE_MAX).
*/
#ifndef LWIP_NO_LIMITS_H
#define LWIP_NO_LIMITS_H 0
#endif
/* Include limits.h? */
#if !LWIP_NO_LIMITS_H
#include <limits.h>
#endif
/* Do we need to define ssize_t? This is a compatibility hack:
* Unfortunately, this type seems to be unavailable on some systems (even if
* sys/types or unistd.h are available).
* Being like that, we define it to 'int' if SSIZE_MAX is not defined.
*/
#ifdef SSIZE_MAX
/* If SSIZE_MAX is defined, unistd.h should provide the type as well */
#ifndef LWIP_NO_UNISTD_H
#define LWIP_NO_UNISTD_H 0
#endif
#if !LWIP_NO_UNISTD_H
#include <unistd.h>
#endif
#else /* SSIZE_MAX */
typedef int ssize_t;
#define SSIZE_MAX INT_MAX
#endif /* SSIZE_MAX */
/* some maximum values needed in lwip code */
#define LWIP_UINT32_MAX 0xffffffff
/** Define this to 1 in arch/cc.h of your port if your compiler does not provide
* the ctype.h header. If ctype.h is available, a few character functions
* are mapped to the appropriate functions (lwip_islower, lwip_isdigit...), if
* not, a private implementation is provided.
*/
#ifndef LWIP_NO_CTYPE_H
#define LWIP_NO_CTYPE_H 0
#endif
#if LWIP_NO_CTYPE_H
#define lwip_in_range(c, lo, up) ((u8_t)(c) >= (lo) && (u8_t)(c) <= (up))
#define lwip_isdigit(c) lwip_in_range((c), '0', '9')
#define lwip_isxdigit(c) (lwip_isdigit(c) || lwip_in_range((c), 'a', 'f') || lwip_in_range((c), 'A', 'F'))
#define lwip_islower(c) lwip_in_range((c), 'a', 'z')
#define lwip_isspace(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || (c) == '\r' || (c) == '\t' || (c) == '\v')
#define lwip_isupper(c) lwip_in_range((c), 'A', 'Z')
#define lwip_tolower(c) (lwip_isupper(c) ? (c) - 'A' + 'a' : c)
#define lwip_toupper(c) (lwip_islower(c) ? (c) - 'a' + 'A' : c)
#else
#include <ctype.h>
#define lwip_isdigit(c) isdigit((unsigned char)(c))
#define lwip_isxdigit(c) isxdigit((unsigned char)(c))
#define lwip_islower(c) islower((unsigned char)(c))
#define lwip_isspace(c) isspace((unsigned char)(c))
#define lwip_isupper(c) isupper((unsigned char)(c))
#define lwip_tolower(c) tolower((unsigned char)(c))
#define lwip_toupper(c) toupper((unsigned char)(c))
#endif
/** C++ const_cast<target_type>(val) equivalent to remove constness from a value (GCC -Wcast-qual) */
#ifndef LWIP_CONST_CAST
#define LWIP_CONST_CAST(target_type, val) ((target_type)((ptrdiff_t)val))
#endif
/** Get rid of alignment cast warnings (GCC -Wcast-align) */
#ifndef LWIP_ALIGNMENT_CAST
#define LWIP_ALIGNMENT_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
#endif
/** Get rid of warnings related to pointer-to-numeric and vice-versa casts,
* e.g. "conversion from 'u8_t' to 'void *' of greater size"
*/
#ifndef LWIP_PTR_NUMERIC_CAST
#define LWIP_PTR_NUMERIC_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
#endif
/** Avoid warnings/errors related to implicitly casting away packed attributes by doing a explicit cast */
#ifndef LWIP_PACKED_CAST
#define LWIP_PACKED_CAST(target_type, val) LWIP_CONST_CAST(target_type, val)
#endif
/** Allocates a memory buffer of specified size that is of sufficient size to align
* its start address using LWIP_MEM_ALIGN.
* You can declare your own version here e.g. to enforce alignment without adding
* trailing padding bytes (see LWIP_MEM_ALIGN_BUFFER) or your own section placement
* requirements.\n
* e.g. if you use gcc and need 32 bit alignment:\n
* \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] \_\_attribute\_\_((aligned(4)))\n
* or more portable:\n
* \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u32_t variable_name[(size + sizeof(u32_t) - 1) / sizeof(u32_t)]
*/
#ifndef LWIP_DECLARE_MEMORY_ALIGNED
#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[LWIP_MEM_ALIGN_BUFFER(size)]
#endif
/** Calculate memory size for an aligned buffer - returns the next highest
* multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and
* LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4).
*/
#ifndef LWIP_MEM_ALIGN_SIZE
#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1U) & ~(MEM_ALIGNMENT-1U))
#endif
/** Calculate safe memory size for an aligned buffer when using an unaligned
* type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the
* start (e.g. if buffer is u8_t[] and actual data will be u32_t*)
*/
#ifndef LWIP_MEM_ALIGN_BUFFER
#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1U))
#endif
/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT
* so that ADDR % MEM_ALIGNMENT == 0
*/
#ifndef LWIP_MEM_ALIGN
#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Packed structs support.
* Placed BEFORE declaration of a packed struct.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_BEGIN
#define PACK_STRUCT_BEGIN
#endif /* PACK_STRUCT_BEGIN */
/** Packed structs support.
* Placed AFTER declaration of a packed struct.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_END
#define PACK_STRUCT_END
#endif /* PACK_STRUCT_END */
/** Packed structs support.
* Placed between end of declaration of a packed struct and trailing semicolon.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_STRUCT
#if defined(__GNUC__) || defined(__clang__)
#define PACK_STRUCT_STRUCT __attribute__((packed))
#else
#define PACK_STRUCT_STRUCT
#endif
#endif /* PACK_STRUCT_STRUCT */
/** Packed structs support.
* Wraps u32_t and u16_t members.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_FIELD
#define PACK_STRUCT_FIELD(x) x
#endif /* PACK_STRUCT_FIELD */
/** Packed structs support.
* Wraps u8_t members, where some compilers warn that packing is not necessary.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_FLD_8
#define PACK_STRUCT_FLD_8(x) PACK_STRUCT_FIELD(x)
#endif /* PACK_STRUCT_FLD_8 */
/** Packed structs support.
* Wraps members that are packed structs themselves, where some compilers warn that packing is not necessary.\n
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifndef PACK_STRUCT_FLD_S
#define PACK_STRUCT_FLD_S(x) PACK_STRUCT_FIELD(x)
#endif /* PACK_STRUCT_FLD_S */
/** PACK_STRUCT_USE_INCLUDES==1: Packed structs support using \#include files before and after struct to be packed.\n
* The file included BEFORE the struct is "arch/bpstruct.h".\n
* The file included AFTER the struct is "arch/epstruct.h".\n
* This can be used to implement struct packing on MS Visual C compilers, see
* the Win32 port in the lwIP contrib repository for reference.
* For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n
* A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here.
*/
#ifdef __DOXYGEN__
#define PACK_STRUCT_USE_INCLUDES
#endif
/** Eliminates compiler warning about unused arguments (GCC -Wextra -Wunused). */
#ifndef LWIP_UNUSED_ARG
#define LWIP_UNUSED_ARG(x) (void)x
#endif /* LWIP_UNUSED_ARG */
/** LWIP_PROVIDE_ERRNO==1: Let lwIP provide ERRNO values and the 'errno' variable.
* If this is disabled, cc.h must either define 'errno', include <errno.h>,
* define LWIP_ERRNO_STDINCLUDE to get <errno.h> included or
* define LWIP_ERRNO_INCLUDE to <errno.h> or equivalent.
*/
#if defined __DOXYGEN__
#define LWIP_PROVIDE_ERRNO
#endif
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_ARCH_H */

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/**
* @file
*
* AutoIP Automatic LinkLocal IP Configuration
*/
/*
*
* Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Dominik Spies <kontakt@dspies.de>
*
* This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
* with RFC 3927.
*
*/
#ifndef LWIP_HDR_AUTOIP_H
#define LWIP_HDR_AUTOIP_H
#include "lwip/opt.h"
#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
#include "lwip/netif.h"
/* #include "lwip/udp.h" */
#include "lwip/etharp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** AutoIP Timing */
#define AUTOIP_TMR_INTERVAL 100
#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
/** AutoIP state information per netif */
struct autoip
{
/** the currently selected, probed, announced or used LL IP-Address */
ip4_addr_t llipaddr;
/** current AutoIP state machine state */
u8_t state;
/** sent number of probes or announces, dependent on state */
u8_t sent_num;
/** ticks to wait, tick is AUTOIP_TMR_INTERVAL long */
u16_t ttw;
/** ticks until a conflict can be solved by defending */
u8_t lastconflict;
/** total number of probed/used Link Local IP-Addresses */
u8_t tried_llipaddr;
};
void autoip_set_struct(struct netif *netif, struct autoip *autoip);
/** Remove a struct autoip previously set to the netif using autoip_set_struct() */
#define autoip_remove_struct(netif) do { (netif)->autoip = NULL; } while (0)
err_t autoip_start(struct netif *netif);
err_t autoip_stop(struct netif *netif);
void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
void autoip_tmr(void);
void autoip_network_changed(struct netif *netif);
u8_t autoip_supplied_address(const struct netif *netif);
/* for lwIP internal use by ip4.c */
u8_t autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr);
#define netif_autoip_data(netif) ((struct autoip*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 && LWIP_AUTOIP */
#endif /* LWIP_HDR_AUTOIP_H */

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/**
* @file
* Debug messages infrastructure
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_DEBUG_H
#define LWIP_HDR_DEBUG_H
#include "lwip/arch.h"
#include "lwip/opt.h"
/**
* @defgroup debugging_levels LWIP_DBG_MIN_LEVEL and LWIP_DBG_TYPES_ON values
* @ingroup lwip_opts_debugmsg
* @{
*/
/** @name Debug level (LWIP_DBG_MIN_LEVEL)
* @{
*/
/** Debug level: ALL messages*/
#define LWIP_DBG_LEVEL_ALL 0x00
/** Debug level: Warnings. bad checksums, dropped packets, ... */
#define LWIP_DBG_LEVEL_WARNING 0x01
/** Debug level: Serious. memory allocation failures, ... */
#define LWIP_DBG_LEVEL_SERIOUS 0x02
/** Debug level: Severe */
#define LWIP_DBG_LEVEL_SEVERE 0x03
/**
* @}
*/
#define LWIP_DBG_MASK_LEVEL 0x03
/* compatibility define only */
#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL
/** @name Enable/disable debug messages completely (LWIP_DBG_TYPES_ON)
* @{
*/
/** flag for LWIP_DEBUGF to enable that debug message */
#define LWIP_DBG_ON 0x80U
/** flag for LWIP_DEBUGF to disable that debug message */
#define LWIP_DBG_OFF 0x00U
/**
* @}
*/
/** @name Debug message types (LWIP_DBG_TYPES_ON)
* @{
*/
/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
#define LWIP_DBG_TRACE 0x40U
/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
#define LWIP_DBG_STATE 0x20U
/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
#define LWIP_DBG_FRESH 0x10U
/** flag for LWIP_DEBUGF to halt after printing this debug message */
#define LWIP_DBG_HALT 0x08U
/**
* @}
*/
/**
* @}
*/
/**
* @defgroup lwip_assertions Assertion handling
* @ingroup lwip_opts_debug
* @{
*/
/**
* LWIP_NOASSERT: Disable LWIP_ASSERT checks:
* To disable assertions define LWIP_NOASSERT in arch/cc.h.
*/
#ifdef __DOXYGEN__
#define LWIP_NOASSERT
#undef LWIP_NOASSERT
#endif
/**
* @}
*/
#ifndef LWIP_NOASSERT
#define LWIP_ASSERT(message, assertion) do { if (!(assertion)) { \
LWIP_PLATFORM_ASSERT(message); }} while(0)
#else /* LWIP_NOASSERT */
#define LWIP_ASSERT(message, assertion)
#endif /* LWIP_NOASSERT */
#ifndef LWIP_ERROR
#ifdef LWIP_DEBUG
#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_DIAG((message))
#else
#define LWIP_PLATFORM_ERROR(message)
#endif
/* if "expression" isn't true, then print "message" and execute "handler" expression */
#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
LWIP_PLATFORM_ERROR(message); handler;}} while(0)
#endif /* LWIP_ERROR */
/** Enable debug message printing, but only if debug message type is enabled
* AND is of correct type AND is at least LWIP_DBG_LEVEL.
*/
#ifdef __DOXYGEN__
#define LWIP_DEBUG
#undef LWIP_DEBUG
#endif
#ifdef LWIP_DEBUG
#define LWIP_DEBUGF(debug, message) do { \
if ( \
((debug) & LWIP_DBG_ON) && \
((debug) & LWIP_DBG_TYPES_ON) && \
((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
LWIP_PLATFORM_DIAG(message); \
if ((debug) & LWIP_DBG_HALT) { \
while(1); \
} \
} \
} while(0)
#else /* LWIP_DEBUG */
#define LWIP_DEBUGF(debug, message)
#endif /* LWIP_DEBUG */
#endif /* LWIP_HDR_DEBUG_H */

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/**
* @file
* various utility macros
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
/**
* @defgroup perf Performance measurement
* @ingroup sys_layer
* All defines related to this section must not be placed in lwipopts.h,
* but in arch/perf.h!
* Measurement calls made throughout lwip, these can be defined to nothing.
* - PERF_START: start measuring something.
* - PERF_STOP(x): stop measuring something, and record the result.
*/
#ifndef LWIP_HDR_DEF_H
#define LWIP_HDR_DEF_H
/* arch.h might define NULL already */
#include "lwip/arch.h"
#include "lwip/opt.h"
#if LWIP_PERF
#include "arch/perf.h"
#else /* LWIP_PERF */
#define PERF_START /* null definition */
#define PERF_STOP(x) /* null definition */
#endif /* LWIP_PERF */
#ifdef __cplusplus
extern "C" {
#endif
#define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y))
#define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y))
/* Get the number of entries in an array ('x' must NOT be a pointer!) */
#define LWIP_ARRAYSIZE(x) (sizeof(x)/sizeof((x)[0]))
/** Create u32_t value from bytes */
#define LWIP_MAKEU32(a,b,c,d) (((u32_t)((a) & 0xff) << 24) | \
((u32_t)((b) & 0xff) << 16) | \
((u32_t)((c) & 0xff) << 8) | \
(u32_t)((d) & 0xff))
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void *)0)
#endif
#endif
#if BYTE_ORDER == BIG_ENDIAN
#define lwip_htons(x) ((u16_t)(x))
#define lwip_ntohs(x) ((u16_t)(x))
#define lwip_htonl(x) ((u32_t)(x))
#define lwip_ntohl(x) ((u32_t)(x))
#define PP_HTONS(x) ((u16_t)(x))
#define PP_NTOHS(x) ((u16_t)(x))
#define PP_HTONL(x) ((u32_t)(x))
#define PP_NTOHL(x) ((u32_t)(x))
#else /* BYTE_ORDER != BIG_ENDIAN */
#ifndef lwip_htons
u16_t lwip_htons(u16_t x);
#endif
#define lwip_ntohs(x) lwip_htons(x)
#ifndef lwip_htonl
u32_t lwip_htonl(u32_t x);
#endif
#define lwip_ntohl(x) lwip_htonl(x)
/* These macros should be calculated by the preprocessor and are used
with compile-time constants only (so that there is no little-endian
overhead at runtime). */
#define PP_HTONS(x) ((u16_t)((((x) & (u16_t)0x00ffU) << 8) | (((x) & (u16_t)0xff00U) >> 8)))
#define PP_NTOHS(x) PP_HTONS(x)
#define PP_HTONL(x) ((((x) & (u32_t)0x000000ffUL) << 24) | \
(((x) & (u32_t)0x0000ff00UL) << 8) | \
(((x) & (u32_t)0x00ff0000UL) >> 8) | \
(((x) & (u32_t)0xff000000UL) >> 24))
#define PP_NTOHL(x) PP_HTONL(x)
#endif /* BYTE_ORDER == BIG_ENDIAN */
/* Provide usual function names as macros for users, but this can be turned off */
#ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
#define htons(x) lwip_htons(x)
#define ntohs(x) lwip_ntohs(x)
#define htonl(x) lwip_htonl(x)
#define ntohl(x) lwip_ntohl(x)
#endif
/* Functions that are not available as standard implementations.
* In cc.h, you can #define these to implementations available on
* your platform to save some code bytes if you use these functions
* in your application, too.
*/
#ifndef lwip_itoa
/* This can be #defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform */
void lwip_itoa(char* result, size_t bufsize, int number);
#endif
#ifndef lwip_strnicmp
/* This can be #defined to strnicmp() or strncasecmp() depending on your platform */
int lwip_strnicmp(const char* str1, const char* str2, size_t len);
#endif
#ifndef lwip_stricmp
/* This can be #defined to stricmp() or strcasecmp() depending on your platform */
int lwip_stricmp(const char* str1, const char* str2);
#endif
#ifndef lwip_strnstr
/* This can be #defined to strnstr() depending on your platform */
char* lwip_strnstr(const char* buffer, const char* token, size_t n);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_DEF_H */

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/**
* @file
* DHCP client API
*/
/*
* Copyright (c) 2001-2004 Leon Woestenberg <leon.woestenberg@gmx.net>
* Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Leon Woestenberg <leon.woestenberg@gmx.net>
*
*/
#ifndef LWIP_HDR_DHCP_H
#define LWIP_HDR_DHCP_H
#include "lwip/opt.h"
#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/netif.h"
#include "lwip/udp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** period (in seconds) of the application calling dhcp_coarse_tmr() */
#if ESP_DHCP
#define DHCP_COARSE_TIMER_SECS 1
#else
#define DHCP_COARSE_TIMER_SECS 60
#endif
/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
/** period (in milliseconds) of the application calling dhcp_fine_tmr() */
#define DHCP_FINE_TIMER_MSECS 500
#define DHCP_BOOT_FILE_LEN 128U
/* AutoIP cooperation flags (struct dhcp.autoip_coop_state) */
typedef enum {
DHCP_AUTOIP_COOP_STATE_OFF = 0,
DHCP_AUTOIP_COOP_STATE_ON = 1
} dhcp_autoip_coop_state_enum_t;
struct dhcp
{
/** transaction identifier of last sent request */
u32_t xid;
/** track PCB allocation state */
u8_t pcb_allocated;
/** current DHCP state machine state */
u8_t state;
/** retries of current request */
u8_t tries;
#if LWIP_DHCP_AUTOIP_COOP
u8_t autoip_coop_state;
#endif
u8_t subnet_mask_given;
u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
#if ESP_DHCP
u32_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
u32_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
u32_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
u32_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
u32_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
u32_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
#else
u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
u16_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */
u16_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */
u16_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */
u16_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */
#endif
ip_addr_t server_ip_addr; /* dhcp server address that offered this lease (ip_addr_t because passed to UDP) */
ip4_addr_t offered_ip_addr;
ip4_addr_t offered_sn_mask;
ip4_addr_t offered_gw_addr;
u32_t offered_t0_lease; /* lease period (in seconds) */
u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */
u32_t offered_t2_rebind; /* recommended rebind time (usually 87.5 of lease period) */
#if LWIP_DHCP_BOOTP_FILE
ip4_addr_t offered_si_addr;
char boot_file_name[DHCP_BOOT_FILE_LEN];
#endif /* LWIP_DHCP_BOOTPFILE */
/* Espressif add start. */
#ifdef ESP_DHCP
void (*cb)(struct netif*); /* callback for dhcp, add a parameter to show dhcp status if needed */
#else
void (*cb)(void); /* callback for dhcp, add a parameter to show dhcp status if needed */
#endif
/* Espressif add end. */
};
void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp);
/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */
#define dhcp_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL)
void dhcp_cleanup(struct netif *netif);
err_t dhcp_start(struct netif *netif);
err_t dhcp_renew(struct netif *netif);
err_t dhcp_release(struct netif *netif);
void dhcp_stop(struct netif *netif);
void dhcp_release_and_stop(struct netif *netif);
void dhcp_inform(struct netif *netif);
void dhcp_network_changed(struct netif *netif);
/* Espressif add start. */
/** set callback for DHCP */
#ifdef ESP_DHCP
void dhcp_set_cb(struct netif *netif, void (*cb)(struct netif*));
#else
void dhcp_set_cb(struct netif *netif, void (*cb)(void));
#endif
/* Espressif add end. */
#if DHCP_DOES_ARP_CHECK
void dhcp_arp_reply(struct netif *netif, const ip4_addr_t *addr);
#endif
u8_t dhcp_supplied_address(const struct netif *netif);
/* to be called every minute */
void dhcp_coarse_tmr(void);
/* to be called every half second */
void dhcp_fine_tmr(void);
#if LWIP_DHCP_GET_NTP_SRV
/** This function must exist, in other to add offered NTP servers to
* the NTP (or SNTP) engine.
* See LWIP_DHCP_MAX_NTP_SERVERS */
extern void dhcp_set_ntp_servers(u8_t num_ntp_servers, const ip4_addr_t* ntp_server_addrs);
#endif /* LWIP_DHCP_GET_NTP_SRV */
#define netif_dhcp_data(netif) ((struct dhcp*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DHCP */
#endif /*LWIP_HDR_DHCP_H*/

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/**
* @file
*
* DHCPv6 client: IPv6 address autoconfiguration as per
* RFC 3315 (stateful DHCPv6) and
* RFC 3736 (stateless DHCPv6).
*/
/*
* Copyright (c) 2018 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*/
#ifndef LWIP_HDR_IP6_DHCP6_H
#define LWIP_HDR_IP6_DHCP6_H
#include "lwip/opt.h"
#if LWIP_IPV6_DHCP6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/err.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** period (in milliseconds) of the application calling dhcp6_tmr() */
#define DHCP6_TIMER_MSECS 500
struct dhcp6
{
/** transaction identifier of last sent request */
u32_t xid;
/** track PCB allocation state */
u8_t pcb_allocated;
/** current DHCPv6 state machine state */
u8_t state;
/** retries of current request */
u8_t tries;
/** if request config is triggered while another action is active, this keeps track of it */
u8_t request_config_pending;
/** #ticks with period DHCP6_TIMER_MSECS for request timeout */
u16_t request_timeout;
#if LWIP_IPV6_DHCP6_STATEFUL
/* @todo: add more members here to keep track of stateful DHCPv6 data, like lease times */
#endif /* LWIP_IPV6_DHCP6_STATEFUL */
};
void dhcp6_set_struct(struct netif *netif, struct dhcp6 *dhcp6);
/** Remove a struct dhcp6 previously set to the netif using dhcp6_set_struct() */
#define dhcp6_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL)
void dhcp6_cleanup(struct netif *netif);
err_t dhcp6_enable_stateful(struct netif *netif);
err_t dhcp6_enable_stateless(struct netif *netif);
void dhcp6_disable(struct netif *netif);
void dhcp6_tmr(void);
void dhcp6_nd6_ra_trigger(struct netif *netif, u8_t managed_addr_config, u8_t other_config);
#if LWIP_DHCP6_GET_NTP_SRV
/** This function must exist, in other to add offered NTP servers to
* the NTP (or SNTP) engine.
* See LWIP_DHCP6_MAX_NTP_SERVERS */
extern void dhcp6_set_ntp_servers(u8_t num_ntp_servers, const ip_addr_t* ntp_server_addrs);
#endif /* LWIP_DHCP6_GET_NTP_SRV */
#define netif_dhcp6_data(netif) ((struct dhcp6*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6_DHCP6 */
#endif /* LWIP_HDR_IP6_DHCP6_H */

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/**
* @file
* DNS API
*/
/**
* lwip DNS resolver header file.
* Author: Jim Pettinato
* April 2007
* ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LWIP_HDR_DNS_H
#define LWIP_HDR_DNS_H
#include "lwip/opt.h"
#if LWIP_DNS
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/** DNS timer period */
#define DNS_TMR_INTERVAL 1000
/* DNS resolve types: */
#define LWIP_DNS_ADDRTYPE_IPV4 0
#define LWIP_DNS_ADDRTYPE_IPV6 1
#define LWIP_DNS_ADDRTYPE_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */
#define LWIP_DNS_ADDRTYPE_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */
#if LWIP_IPV4 && LWIP_IPV6
#ifndef LWIP_DNS_ADDRTYPE_DEFAULT
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4_IPV6
#endif
#elif LWIP_IPV4
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4
#else
#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV6
#endif
#if DNS_LOCAL_HOSTLIST
/** struct used for local host-list */
struct local_hostlist_entry {
/** static hostname */
const char *name;
/** static host address in network byteorder */
ip_addr_t addr;
struct local_hostlist_entry *next;
};
#define DNS_LOCAL_HOSTLIST_ELEM(name, addr_init) {name, addr_init, NULL}
#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC
#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN
#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN DNS_MAX_NAME_LENGTH
#endif
#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1))
#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#endif /* DNS_LOCAL_HOSTLIST */
#if LWIP_IPV4
extern const ip_addr_t dns_mquery_v4group;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
extern const ip_addr_t dns_mquery_v6group;
#endif /* LWIP_IPV6 */
/** Callback which is invoked when a hostname is found.
* A function of this type must be implemented by the application using the DNS resolver.
* @param name pointer to the name that was looked up.
* @param ipaddr pointer to an ip_addr_t containing the IP address of the hostname,
* or NULL if the name could not be found (or on any other error).
* @param callback_arg a user-specified callback argument passed to dns_gethostbyname
*/
typedef void (*dns_found_callback)(const char *name, const ip_addr_t *ipaddr, void *callback_arg);
void dns_init(void);
void dns_tmr(void);
void dns_setserver(u8_t numdns, const ip_addr_t *dnsserver);
const ip_addr_t* dns_getserver(u8_t numdns);
err_t dns_gethostbyname(const char *hostname, ip_addr_t *addr,
dns_found_callback found, void *callback_arg);
err_t dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr,
dns_found_callback found, void *callback_arg,
u8_t dns_addrtype);
#if ESP_DNS
void dns_clear_servers(bool keep_fallback);
#endif
#if DNS_LOCAL_HOSTLIST
size_t dns_local_iterate(dns_found_callback iterator_fn, void *iterator_arg);
err_t dns_local_lookup(const char *hostname, ip_addr_t *addr, u8_t dns_addrtype);
#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC
int dns_local_removehost(const char *hostname, const ip_addr_t *addr);
err_t dns_local_addhost(const char *hostname, const ip_addr_t *addr);
#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#endif /* DNS_LOCAL_HOSTLIST */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DNS */
#endif /* LWIP_HDR_DNS_H */

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/**
* @file
* lwIP Error codes
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_ERR_H
#define LWIP_HDR_ERR_H
#include "lwip/opt.h"
#include "lwip/arch.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup infrastructure_errors Error codes
* @ingroup infrastructure
* @{
*/
/** Definitions for error constants. */
typedef enum {
/** No error, everything OK. */
ERR_OK = 0,
/** Out of memory error. */
ERR_MEM = -1,
/** Buffer error. */
ERR_BUF = -2,
/** Timeout. */
ERR_TIMEOUT = -3,
/** Routing problem. */
ERR_RTE = -4,
/** Operation in progress */
ERR_INPROGRESS = -5,
/** Illegal value. */
ERR_VAL = -6,
/** Operation would block. */
ERR_WOULDBLOCK = -7,
/** Address in use. */
ERR_USE = -8,
/** Already connecting. */
ERR_ALREADY = -9,
/** Conn already established.*/
ERR_ISCONN = -10,
/** Not connected. */
ERR_CONN = -11,
/** Low-level netif error */
ERR_IF = -12,
/** Connection aborted. */
ERR_ABRT = -13,
/** Connection reset. */
ERR_RST = -14,
/** Connection closed. */
ERR_CLSD = -15,
/** Illegal argument. */
ERR_ARG = -16
} err_enum_t;
/** Define LWIP_ERR_T in cc.h if you want to use
* a different type for your platform (must be signed). */
#ifdef LWIP_ERR_T
typedef LWIP_ERR_T err_t;
#else /* LWIP_ERR_T */
typedef s8_t err_t;
#endif /* LWIP_ERR_T*/
/**
* @}
*/
#ifdef LWIP_DEBUG
extern const char *lwip_strerr(err_t err);
#else
#define lwip_strerr(x) ""
#endif /* LWIP_DEBUG */
#if !NO_SYS
int err_to_errno(err_t err);
#endif /* !NO_SYS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_ERR_H */

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/**
* @file
* Posix Errno defines
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_ERRNO_H
#define LWIP_HDR_ERRNO_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef LWIP_PROVIDE_ERRNO
#define EPERM 1 /* Operation not permitted */
#define ENOENT 2 /* No such file or directory */
#define ESRCH 3 /* No such process */
#define EINTR 4 /* Interrupted system call */
#define EIO 5 /* I/O error */
#define ENXIO 6 /* No such device or address */
#define E2BIG 7 /* Arg list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF 9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
#define EDEADLK 35 /* Resource deadlock would occur */
#define ENAMETOOLONG 36 /* File name too long */
#define ENOLCK 37 /* No record locks available */
#define ENOSYS 38 /* Function not implemented */
#define ENOTEMPTY 39 /* Directory not empty */
#define ELOOP 40 /* Too many symbolic links encountered */
#define EWOULDBLOCK EAGAIN /* Operation would block */
#define ENOMSG 42 /* No message of desired type */
#define EIDRM 43 /* Identifier removed */
#define ECHRNG 44 /* Channel number out of range */
#define EL2NSYNC 45 /* Level 2 not synchronized */
#define EL3HLT 46 /* Level 3 halted */
#define EL3RST 47 /* Level 3 reset */
#define ELNRNG 48 /* Link number out of range */
#define EUNATCH 49 /* Protocol driver not attached */
#define ENOCSI 50 /* No CSI structure available */
#define EL2HLT 51 /* Level 2 halted */
#define EBADE 52 /* Invalid exchange */
#define EBADR 53 /* Invalid request descriptor */
#define EXFULL 54 /* Exchange full */
#define ENOANO 55 /* No anode */
#define EBADRQC 56 /* Invalid request code */
#define EBADSLT 57 /* Invalid slot */
#define EDEADLOCK EDEADLK
#define EBFONT 59 /* Bad font file format */
#define ENOSTR 60 /* Device not a stream */
#define ENODATA 61 /* No data available */
#define ETIME 62 /* Timer expired */
#define ENOSR 63 /* Out of streams resources */
#define ENONET 64 /* Machine is not on the network */
#define ENOPKG 65 /* Package not installed */
#define EREMOTE 66 /* Object is remote */
#define ENOLINK 67 /* Link has been severed */
#define EADV 68 /* Advertise error */
#define ESRMNT 69 /* Srmount error */
#define ECOMM 70 /* Communication error on send */
#define EPROTO 71 /* Protocol error */
#define EMULTIHOP 72 /* Multihop attempted */
#define EDOTDOT 73 /* RFS specific error */
#define EBADMSG 74 /* Not a data message */
#define EOVERFLOW 75 /* Value too large for defined data type */
#define ENOTUNIQ 76 /* Name not unique on network */
#define EBADFD 77 /* File descriptor in bad state */
#define EREMCHG 78 /* Remote address changed */
#define ELIBACC 79 /* Can not access a needed shared library */
#define ELIBBAD 80 /* Accessing a corrupted shared library */
#define ELIBSCN 81 /* .lib section in a.out corrupted */
#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
#define ELIBEXEC 83 /* Cannot exec a shared library directly */
#define EILSEQ 84 /* Illegal byte sequence */
#define ERESTART 85 /* Interrupted system call should be restarted */
#define ESTRPIPE 86 /* Streams pipe error */
#define EUSERS 87 /* Too many users */
#define ENOTSOCK 88 /* Socket operation on non-socket */
#define EDESTADDRREQ 89 /* Destination address required */
#define EMSGSIZE 90 /* Message too long */
#define EPROTOTYPE 91 /* Protocol wrong type for socket */
#define ENOPROTOOPT 92 /* Protocol not available */
#define EPROTONOSUPPORT 93 /* Protocol not supported */
#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
#define EPFNOSUPPORT 96 /* Protocol family not supported */
#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
#define EADDRINUSE 98 /* Address already in use */
#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
#define ENETDOWN 100 /* Network is down */
#define ENETUNREACH 101 /* Network is unreachable */
#define ENETRESET 102 /* Network dropped connection because of reset */
#define ECONNABORTED 103 /* Software caused connection abort */
#define ECONNRESET 104 /* Connection reset by peer */
#define ENOBUFS 105 /* No buffer space available */
#define EISCONN 106 /* Transport endpoint is already connected */
#define ENOTCONN 107 /* Transport endpoint is not connected */
#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS 109 /* Too many references: cannot splice */
#define ETIMEDOUT 110 /* Connection timed out */
#define ECONNREFUSED 111 /* Connection refused */
#define EHOSTDOWN 112 /* Host is down */
#define EHOSTUNREACH 113 /* No route to host */
#define EALREADY 114 /* Operation already in progress */
#define EINPROGRESS 115 /* Operation now in progress */
#define ESTALE 116 /* Stale NFS file handle */
#define EUCLEAN 117 /* Structure needs cleaning */
#define ENOTNAM 118 /* Not a XENIX named type file */
#define ENAVAIL 119 /* No XENIX semaphores available */
#define EISNAM 120 /* Is a named type file */
#define EREMOTEIO 121 /* Remote I/O error */
#define EDQUOT 122 /* Quota exceeded */
#define ENOMEDIUM 123 /* No medium found */
#define EMEDIUMTYPE 124 /* Wrong medium type */
#ifndef errno
extern int errno;
#endif
#else /* LWIP_PROVIDE_ERRNO */
/* Define LWIP_ERRNO_STDINCLUDE if you want to include <errno.h> here */
#ifdef LWIP_ERRNO_STDINCLUDE
#include <errno.h>
#else /* LWIP_ERRNO_STDINCLUDE */
/* Define LWIP_ERRNO_INCLUDE to an equivalent of <errno.h> to include the error defines here */
#ifdef LWIP_ERRNO_INCLUDE
#include LWIP_ERRNO_INCLUDE
#endif /* LWIP_ERRNO_INCLUDE */
#endif /* LWIP_ERRNO_STDINCLUDE */
#endif /* LWIP_PROVIDE_ERRNO */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_ERRNO_H */

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/**
* @file
* Ethernet output function - handles OUTGOING ethernet level traffic, implements
* ARP resolving.
* To be used in most low-level netif implementations
*/
/*
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
* Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
* Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_NETIF_ETHARP_H
#define LWIP_HDR_NETIF_ETHARP_H
#include "lwip/opt.h"
#if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/ip4_addr.h"
#include "lwip/netif.h"
#include "lwip/ip4.h"
#include "lwip/prot/ethernet.h"
#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
#include "lwip/prot/etharp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** 1 seconds period */
#define ARP_TMR_INTERVAL 1000
#if ARP_QUEUEING
/** struct for queueing outgoing packets for unknown address
* defined here to be accessed by memp.h
*/
struct etharp_q_entry {
struct etharp_q_entry *next;
struct pbuf *p;
};
#endif /* ARP_QUEUEING */
#if ESP_GRATUITOUS_ARP
#ifdef CONFIG_GARP_TMR_INTERVAL
#define GARP_TMR_INTERVAL (CONFIG_GARP_TMR_INTERVAL*1000UL)
#else
#define GARP_TMR_INTERVAL 60000
#endif
void garp_tmr(void);
#endif
#define etharp_init() /* Compatibility define, no init needed. */
void etharp_tmr(void);
ssize_t etharp_find_addr(struct netif *netif, const ip4_addr_t *ipaddr,
struct eth_addr **eth_ret, const ip4_addr_t **ip_ret);
int etharp_get_entry(size_t i, ip4_addr_t **ipaddr, struct netif **netif, struct eth_addr **eth_ret);
err_t etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr);
err_t etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q);
err_t etharp_request(struct netif *netif, const ip4_addr_t *ipaddr);
/** For Ethernet network interfaces, we might want to send "gratuitous ARP";
* this is an ARP packet sent by a node in order to spontaneously cause other
* nodes to update an entry in their ARP cache.
* From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */
#define etharp_gratuitous(netif) etharp_request((netif), netif_ip4_addr(netif))
void etharp_cleanup_netif(struct netif *netif);
#if ETHARP_SUPPORT_STATIC_ENTRIES
err_t etharp_add_static_entry(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr);
err_t etharp_remove_static_entry(const ip4_addr_t *ipaddr);
#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
void etharp_input(struct pbuf *p, struct netif *netif);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 && LWIP_ARP */
#endif /* LWIP_ARP || LWIP_ETHERNET */
#endif /* LWIP_HDR_NETIF_ETHARP_H */

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/**
* @file
*
* Ethernet output for IPv6. Uses ND tables for link-layer addressing.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_ETHIP6_H
#define LWIP_HDR_ETHIP6_H
#include "lwip/opt.h"
#if LWIP_IPV6 && LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/ip6.h"
#include "lwip/ip6_addr.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
err_t ethip6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 && LWIP_ETHERNET */
#endif /* LWIP_HDR_ETHIP6_H */

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/**
* @file
* ICMP API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_ICMP_H
#define LWIP_HDR_ICMP_H
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#include "lwip/prot/icmp.h"
#if LWIP_IPV6 && LWIP_ICMP6
#include "lwip/icmp6.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** ICMP destination unreachable codes */
enum icmp_dur_type {
/** net unreachable */
ICMP_DUR_NET = 0,
/** host unreachable */
ICMP_DUR_HOST = 1,
/** protocol unreachable */
ICMP_DUR_PROTO = 2,
/** port unreachable */
ICMP_DUR_PORT = 3,
/** fragmentation needed and DF set */
ICMP_DUR_FRAG = 4,
/** source route failed */
ICMP_DUR_SR = 5
};
/** ICMP time exceeded codes */
enum icmp_te_type {
/** time to live exceeded in transit */
ICMP_TE_TTL = 0,
/** fragment reassembly time exceeded */
ICMP_TE_FRAG = 1
};
#if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
void icmp_input(struct pbuf *p, struct netif *inp);
void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
#endif /* LWIP_IPV4 && LWIP_ICMP */
#if LWIP_IPV4 && LWIP_IPV6
#if LWIP_ICMP && LWIP_ICMP6
#define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \
icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \
icmp_dest_unreach(pbuf, ICMP_DUR_PORT))
#elif LWIP_ICMP
#define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0)
#elif LWIP_ICMP6
#define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0)
#else
#define icmp_port_unreach(isipv6, pbuf)
#endif
#elif LWIP_IPV6 && LWIP_ICMP6
#define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT)
#elif LWIP_IPV4 && LWIP_ICMP
#define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT)
#else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */
#define icmp_port_unreach(isipv6, pbuf)
#endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_ICMP_H */

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/**
* @file
*
* IPv6 version of ICMP, as per RFC 4443.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_ICMP6_H
#define LWIP_HDR_ICMP6_H
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip6_addr.h"
#include "lwip/netif.h"
#include "lwip/prot/icmp6.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
void icmp6_input(struct pbuf *p, struct netif *inp);
void icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c);
void icmp6_packet_too_big(struct pbuf *p, u32_t mtu);
void icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c);
void icmp6_time_exceeded_with_addrs(struct pbuf *p, enum icmp6_te_code c,
const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr);
void icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, const void *pointer);
#endif /* LWIP_ICMP6 && LWIP_IPV6 */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_ICMP6_H */

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/**
* @file
* Interface Identification APIs from:
* RFC 3493: Basic Socket Interface Extensions for IPv6
* Section 4: Interface Identification
*/
/*
* Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. <joel.cunningham@garmin.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Joel Cunningham <joel.cunningham@me.com>
*
*/
#ifndef LWIP_HDR_IF_H
#define LWIP_HDR_IF_H
#include "lwip/opt.h"
#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
#define IF_NAMESIZE NETIF_NAMESIZE
char * lwip_if_indextoname(unsigned int ifindex, char *ifname);
unsigned int lwip_if_nametoindex(const char *ifname);
#if LWIP_COMPAT_SOCKETS
#define if_indextoname(ifindex, ifname) lwip_if_indextoname(ifindex,ifname)
#define if_nametoindex(ifname) lwip_if_nametoindex(ifname)
#endif /* LWIP_COMPAT_SOCKETS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SOCKET */
#endif /* LWIP_HDR_IF_H */

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/**
* @file
* IGMP API
*/
/*
* Copyright (c) 2002 CITEL Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is a contribution to the lwIP TCP/IP stack.
* The Swedish Institute of Computer Science and Adam Dunkels
* are specifically granted permission to redistribute this
* source code.
*/
#ifndef LWIP_HDR_IGMP_H
#define LWIP_HDR_IGMP_H
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#include "lwip/pbuf.h"
#if LWIP_IPV4 && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */
#ifdef __cplusplus
extern "C" {
#endif
/* IGMP timer */
#define IGMP_TMR_INTERVAL 100 /* Milliseconds */
#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL)
#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL)
/* Compatibility defines (don't use for new code) */
#define IGMP_DEL_MAC_FILTER NETIF_DEL_MAC_FILTER
#define IGMP_ADD_MAC_FILTER NETIF_ADD_MAC_FILTER
/**
* igmp group structure - there is
* a list of groups for each interface
* these should really be linked from the interface, but
* if we keep them separate we will not affect the lwip original code
* too much
*
* There will be a group for the all systems group address but this
* will not run the state machine as it is used to kick off reports
* from all the other groups
*/
struct igmp_group {
/** next link */
struct igmp_group *next;
/** multicast address */
ip4_addr_t group_address;
/** signifies we were the last person to report */
u8_t last_reporter_flag;
/** current state of the group */
u8_t group_state;
/** timer for reporting, negative is OFF */
u16_t timer;
/** counter of simultaneous uses */
u8_t use;
};
/* Prototypes */
void igmp_init(void);
err_t igmp_start(struct netif *netif);
err_t igmp_stop(struct netif *netif);
void igmp_report_groups(struct netif *netif);
struct igmp_group *igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr);
void igmp_input(struct pbuf *p, struct netif *inp, const ip4_addr_t *dest);
err_t igmp_joingroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr);
err_t igmp_joingroup_netif(struct netif *netif, const ip4_addr_t *groupaddr);
err_t igmp_leavegroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr);
err_t igmp_leavegroup_netif(struct netif *netif, const ip4_addr_t *groupaddr);
void igmp_tmr(void);
/** @ingroup igmp
* Get list head of IGMP groups for netif.
* Note: The allsystems group IP is contained in the list as first entry.
* @see @ref netif_set_igmp_mac_filter()
*/
#define netif_igmp_data(netif) ((struct igmp_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 && LWIP_IGMP */
#endif /* LWIP_HDR_IGMP_H */

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/**
* @file
* This file (together with sockets.h) aims to provide structs and functions from
* - arpa/inet.h
* - netinet/in.h
*
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_INET_H
#define LWIP_HDR_INET_H
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/ip_addr.h"
#include "lwip/ip6_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED
to prevent this code from redefining it. */
#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED)
typedef u32_t in_addr_t;
#endif
struct in_addr {
in_addr_t s_addr;
};
struct in6_addr {
union {
u32_t u32_addr[4];
u8_t u8_addr[16];
} un;
#define s6_addr un.u8_addr
};
/** 255.255.255.255 */
#define INADDR_NONE IPADDR_NONE
/** 127.0.0.1 */
#define INADDR_LOOPBACK IPADDR_LOOPBACK
/** 0.0.0.0 */
#define INADDR_ANY IPADDR_ANY
/** 255.255.255.255 */
#define INADDR_BROADCAST IPADDR_BROADCAST
/** This macro can be used to initialize a variable of type struct in6_addr
to the IPv6 wildcard address. */
#define IN6ADDR_ANY_INIT {{{0,0,0,0}}}
/** This macro can be used to initialize a variable of type struct in6_addr
to the IPv6 loopback address. */
#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}}
/** This variable is initialized by the system to contain the wildcard IPv6 address. */
extern const struct in6_addr in6addr_any;
/* Definitions of the bits in an (IPv4) Internet address integer.
On subnets, host and network parts are found according to
the subnet mask, not these masks. */
#define IN_CLASSA(a) IP_CLASSA(a)
#define IN_CLASSA_NET IP_CLASSA_NET
#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT
#define IN_CLASSA_HOST IP_CLASSA_HOST
#define IN_CLASSA_MAX IP_CLASSA_MAX
#define IN_CLASSB(b) IP_CLASSB(b)
#define IN_CLASSB_NET IP_CLASSB_NET
#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT
#define IN_CLASSB_HOST IP_CLASSB_HOST
#define IN_CLASSB_MAX IP_CLASSB_MAX
#define IN_CLASSC(c) IP_CLASSC(c)
#define IN_CLASSC_NET IP_CLASSC_NET
#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT
#define IN_CLASSC_HOST IP_CLASSC_HOST
#define IN_CLASSC_MAX IP_CLASSC_MAX
#define IN_CLASSD(d) IP_CLASSD(d)
#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */
#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */
#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */
#define IN_CLASSD_MAX IP_CLASSD_MAX
#define IN_MULTICAST(a) IP_MULTICAST(a)
#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a)
#define IN_BADCLASS(a) IP_BADCLASS(a)
#define IN_LOOPBACKNET IP_LOOPBACKNET
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN IP4ADDR_STRLEN_MAX
#endif
#if LWIP_IPV6
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN IP6ADDR_STRLEN_MAX
#endif
#endif
#if LWIP_IPV4
#define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
#define inet_addr_to_ip4addr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
/* directly map this to the lwip internal functions */
#define inet_addr(cp) ipaddr_addr(cp)
#define inet_aton(cp, addr) ip4addr_aton(cp, (ip4_addr_t*)addr)
#define inet_ntoa(addr) ip4addr_ntoa((const ip4_addr_t*)&(addr))
#define inet_ntoa_r(addr, buf, buflen) ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen)
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
#define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \
(target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \
(target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \
(target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];}
#define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr) {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \
(target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \
(target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \
(target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3]; \
ip6_addr_clear_zone(target_ip6addr);}
/* directly map this to the lwip internal functions */
#define inet6_aton(cp, addr) ip6addr_aton(cp, (ip6_addr_t*)addr)
#define inet6_ntoa(addr) ip6addr_ntoa((const ip6_addr_t*)&(addr))
#define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen)
#endif /* LWIP_IPV6 */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_INET_H */

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/**
* @file
* IP checksum calculation functions
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_INET_CHKSUM_H
#define LWIP_HDR_INET_CHKSUM_H
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
/** Swap the bytes in an u16_t: much like lwip_htons() for little-endian */
#ifndef SWAP_BYTES_IN_WORD
#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8)
#endif /* SWAP_BYTES_IN_WORD */
/** Split an u32_t in two u16_ts and add them up */
#ifndef FOLD_U32T
#define FOLD_U32T(u) ((u32_t)(((u) >> 16) + ((u) & 0x0000ffffUL)))
#endif
#if LWIP_CHECKSUM_ON_COPY
/** Function-like macro: same as MEMCPY but returns the checksum of copied data
as u16_t */
# ifndef LWIP_CHKSUM_COPY
# define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
# ifndef LWIP_CHKSUM_COPY_ALGORITHM
# define LWIP_CHKSUM_COPY_ALGORITHM 1
# endif /* LWIP_CHKSUM_COPY_ALGORITHM */
# else /* LWIP_CHKSUM_COPY */
# define LWIP_CHKSUM_COPY_ALGORITHM 0
# endif /* LWIP_CHKSUM_COPY */
#else /* LWIP_CHECKSUM_ON_COPY */
# define LWIP_CHKSUM_COPY_ALGORITHM 0
#endif /* LWIP_CHECKSUM_ON_COPY */
#ifdef __cplusplus
extern "C" {
#endif
u16_t inet_chksum(const void *dataptr, u16_t len);
u16_t inet_chksum_pbuf(struct pbuf *p);
#if LWIP_CHKSUM_COPY_ALGORITHM
u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len);
#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
#if LWIP_IPV4
u16_t inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
const ip4_addr_t *src, const ip4_addr_t *dest);
u16_t inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto,
u16_t proto_len, u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
u16_t ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
const ip6_addr_t *src, const ip6_addr_t *dest);
u16_t ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len,
u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest);
#endif /* LWIP_IPV6 */
u16_t ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
const ip_addr_t *src, const ip_addr_t *dest);
u16_t ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len,
u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_INET_H */

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/**
* @file
* lwIP initialization API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_INIT_H
#define LWIP_HDR_INIT_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup lwip_version Version
* @ingroup lwip
* @{
*/
/** X.x.x: Major version of the stack */
#define LWIP_VERSION_MAJOR 2
/** x.X.x: Minor version of the stack */
#define LWIP_VERSION_MINOR 1
/** x.x.X: Revision of the stack */
#define LWIP_VERSION_REVISION 3
/** For release candidates, this is set to 1..254
* For official releases, this is set to 255 (LWIP_RC_RELEASE)
* For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */
#define LWIP_VERSION_RC LWIP_RC_DEVELOPMENT
/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
#define LWIP_RC_RELEASE 255
/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */
#define LWIP_RC_DEVELOPMENT 0
#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE)
#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT)
#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT))
/* Some helper defines to get a version string */
#define LWIP_VERSTR2(x) #x
#define LWIP_VERSTR(x) LWIP_VERSTR2(x)
#if LWIP_VERSION_IS_RELEASE
#define LWIP_VERSION_STRING_SUFFIX ""
#elif LWIP_VERSION_IS_DEVELOPMENT
#define LWIP_VERSION_STRING_SUFFIX "d"
#else
#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC)
#endif
/** Provides the version of the stack */
#define LWIP_VERSION ((LWIP_VERSION_MAJOR) << 24 | (LWIP_VERSION_MINOR) << 16 | \
(LWIP_VERSION_REVISION) << 8 | (LWIP_VERSION_RC))
/** Provides the version of the stack as string */
#define LWIP_VERSION_STRING LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX
/**
* @}
*/
/* Modules initialization */
void lwip_init(void);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_INIT_H */

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/**
* @file
* IP API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_IP_H
#define LWIP_HDR_IP_H
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/netif.h"
#include "lwip/ip4.h"
#include "lwip/ip6.h"
#include "lwip/prot/ip.h"
#ifdef __cplusplus
extern "C" {
#endif
/* This is passed as the destination address to ip_output_if (not
to ip_output), meaning that an IP header already is constructed
in the pbuf. This is used when TCP retransmits. */
#define LWIP_IP_HDRINCL NULL
/** pbufs passed to IP must have a ref-count of 1 as their payload pointer
gets altered as the packet is passed down the stack */
#ifndef LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX
#define LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p) LWIP_ASSERT("p->ref == 1", (p)->ref == 1)
#endif
#if LWIP_NETIF_USE_HINTS
#define IP_PCB_NETIFHINT ;struct netif_hint netif_hints
#else /* LWIP_NETIF_USE_HINTS */
#define IP_PCB_NETIFHINT
#endif /* LWIP_NETIF_USE_HINTS */
/** This is the common part of all PCB types. It needs to be at the
beginning of a PCB type definition. It is located here so that
changes to this common part are made in one location instead of
having to change all PCB structs. */
#define IP_PCB \
/* ip addresses in network byte order */ \
ip_addr_t local_ip; \
ip_addr_t remote_ip; \
/* Bound netif index */ \
u8_t netif_idx; \
/* Socket options */ \
u8_t so_options; \
/* Type Of Service */ \
u8_t tos; \
/* Time To Live */ \
u8_t ttl \
/* link layer address resolution hint */ \
IP_PCB_NETIFHINT
struct ip_pcb {
/* Common members of all PCB types */
IP_PCB;
};
/*
* Option flags per-socket. These are the same like SO_XXX in sockets.h
*/
#define SOF_REUSEADDR 0x04U /* allow local address reuse */
#define SOF_KEEPALIVE 0x08U /* keep connections alive */
#define SOF_BROADCAST 0x20U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
/* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */
#define SOF_INHERITED (SOF_REUSEADDR|SOF_KEEPALIVE)
/** Global variables of this module, kept in a struct for efficient access using base+index. */
struct ip_globals
{
/** The interface that accepted the packet for the current callback invocation. */
struct netif *current_netif;
/** The interface that received the packet for the current callback invocation. */
struct netif *current_input_netif;
#if LWIP_IPV4
/** Header of the input packet currently being processed. */
const struct ip_hdr *current_ip4_header;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
/** Header of the input IPv6 packet currently being processed. */
struct ip6_hdr *current_ip6_header;
#endif /* LWIP_IPV6 */
/** Total header length of current_ip4/6_header (i.e. after this, the UDP/TCP header starts) */
u16_t current_ip_header_tot_len;
/** Source IP address of current_header */
ip_addr_t current_iphdr_src;
/** Destination IP address of current_header */
ip_addr_t current_iphdr_dest;
};
extern struct ip_globals ip_data;
/** Get the interface that accepted the current packet.
* This may or may not be the receiving netif, depending on your netif/network setup.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_netif() (ip_data.current_netif)
/** Get the interface that received the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_input_netif() (ip_data.current_input_netif)
/** Total header length of ip(6)_current_header() (i.e. after this, the UDP/TCP header starts) */
#define ip_current_header_tot_len() (ip_data.current_ip_header_tot_len)
/** Source IP address of current_header */
#define ip_current_src_addr() (&ip_data.current_iphdr_src)
/** Destination IP address of current_header */
#define ip_current_dest_addr() (&ip_data.current_iphdr_dest)
#if LWIP_IPV4 && LWIP_IPV6
/** Get the IPv4 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip4_current_header() ip_data.current_ip4_header
/** Get the IPv6 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header))
/** Returns TRUE if the current IP input packet is IPv6, FALSE if it is IPv4 */
#define ip_current_is_v6() (ip6_current_header() != NULL)
/** Source IPv6 address of current_header */
#define ip6_current_src_addr() (ip_2_ip6(&ip_data.current_iphdr_src))
/** Destination IPv6 address of current_header */
#define ip6_current_dest_addr() (ip_2_ip6(&ip_data.current_iphdr_dest))
/** Get the transport layer protocol */
#define ip_current_header_proto() (ip_current_is_v6() ? \
IP6H_NEXTH(ip6_current_header()) :\
IPH_PROTO(ip4_current_header()))
/** Get the transport layer header */
#define ip_next_header_ptr() ((const void*)((ip_current_is_v6() ? \
(const u8_t*)ip6_current_header() : (const u8_t*)ip4_current_header()) + ip_current_header_tot_len()))
/** Source IP4 address of current_header */
#define ip4_current_src_addr() (ip_2_ip4(&ip_data.current_iphdr_src))
/** Destination IP4 address of current_header */
#define ip4_current_dest_addr() (ip_2_ip4(&ip_data.current_iphdr_dest))
#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */
/** Get the IPv4 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip4_current_header() ip_data.current_ip4_header
/** Always returns FALSE when only supporting IPv4 only */
#define ip_current_is_v6() 0
/** Get the transport layer protocol */
#define ip_current_header_proto() IPH_PROTO(ip4_current_header())
/** Get the transport layer header */
#define ip_next_header_ptr() ((const void*)((const u8_t*)ip4_current_header() + ip_current_header_tot_len()))
/** Source IP4 address of current_header */
#define ip4_current_src_addr() (&ip_data.current_iphdr_src)
/** Destination IP4 address of current_header */
#define ip4_current_dest_addr() (&ip_data.current_iphdr_dest)
#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */
/** Get the IPv6 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header))
/** Always returns TRUE when only supporting IPv6 only */
#define ip_current_is_v6() 1
/** Get the transport layer protocol */
#define ip_current_header_proto() IP6H_NEXTH(ip6_current_header())
/** Get the transport layer header */
#define ip_next_header_ptr() ((const void*)(((const u8_t*)ip6_current_header()) + ip_current_header_tot_len()))
/** Source IP6 address of current_header */
#define ip6_current_src_addr() (&ip_data.current_iphdr_src)
/** Destination IP6 address of current_header */
#define ip6_current_dest_addr() (&ip_data.current_iphdr_dest)
#endif /* LWIP_IPV6 */
/** Union source address of current_header */
#define ip_current_src_addr() (&ip_data.current_iphdr_src)
/** Union destination address of current_header */
#define ip_current_dest_addr() (&ip_data.current_iphdr_dest)
/** Gets an IP pcb option (SOF_* flags) */
#define ip_get_option(pcb, opt) ((pcb)->so_options & (opt))
/** Sets an IP pcb option (SOF_* flags) */
#define ip_set_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options | (opt)))
/** Resets an IP pcb option (SOF_* flags) */
#define ip_reset_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options & ~(opt)))
#if LWIP_IPV4 && LWIP_IPV6
/**
* @ingroup ip
* Output IP packet, netif is selected by source address
*/
#define ip_output(p, src, dest, ttl, tos, proto) \
(IP_IS_V6(dest) ? \
ip6_output(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto) : \
ip4_output(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto))
/**
* @ingroup ip
* Output IP packet to specified interface
*/
#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \
(IP_IS_V6(dest) ? \
ip6_output_if(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \
ip4_output_if(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif))
/**
* @ingroup ip
* Output IP packet to interface specifying source address
*/
#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \
(IP_IS_V6(dest) ? \
ip6_output_if_src(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \
ip4_output_if_src(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif))
/** Output IP packet that already includes an IP header. */
#define ip_output_if_hdrincl(p, src, dest, netif) \
(IP_IS_V6(dest) ? \
ip6_output_if(p, ip_2_ip6(src), LWIP_IP_HDRINCL, 0, 0, 0, netif) : \
ip4_output_if(p, ip_2_ip4(src), LWIP_IP_HDRINCL, 0, 0, 0, netif))
/** Output IP packet with netif_hint */
#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \
(IP_IS_V6(dest) ? \
ip6_output_hinted(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif_hint) : \
ip4_output_hinted(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif_hint))
/**
* @ingroup ip
* Get netif for address combination. See \ref ip6_route and \ref ip4_route
*/
#define ip_route(src, dest) \
(IP_IS_V6(dest) ? \
ip6_route(ip_2_ip6(src), ip_2_ip6(dest)) : \
ip4_route_src(ip_2_ip4(src), ip_2_ip4(dest)))
/**
* @ingroup ip
* Get netif for IP.
*/
#define ip_netif_get_local_ip(netif, dest) (IP_IS_V6(dest) ? \
ip6_netif_get_local_ip(netif, ip_2_ip6(dest)) : \
ip4_netif_get_local_ip(netif))
#define ip_debug_print(is_ipv6, p) ((is_ipv6) ? ip6_debug_print(p) : ip4_debug_print(p))
err_t ip_input(struct pbuf *p, struct netif *inp);
#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */
#define ip_output(p, src, dest, ttl, tos, proto) \
ip4_output(p, src, dest, ttl, tos, proto)
#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \
ip4_output_if(p, src, dest, ttl, tos, proto, netif)
#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \
ip4_output_if_src(p, src, dest, ttl, tos, proto, netif)
#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \
ip4_output_hinted(p, src, dest, ttl, tos, proto, netif_hint)
#define ip_output_if_hdrincl(p, src, dest, netif) \
ip4_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif)
#define ip_route(src, dest) \
ip4_route_src(src, dest)
#define ip_netif_get_local_ip(netif, dest) \
ip4_netif_get_local_ip(netif)
#define ip_debug_print(is_ipv6, p) ip4_debug_print(p)
#define ip_input ip4_input
#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */
#define ip_output(p, src, dest, ttl, tos, proto) \
ip6_output(p, src, dest, ttl, tos, proto)
#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \
ip6_output_if(p, src, dest, ttl, tos, proto, netif)
#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \
ip6_output_if_src(p, src, dest, ttl, tos, proto, netif)
#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \
ip6_output_hinted(p, src, dest, ttl, tos, proto, netif_hint)
#define ip_output_if_hdrincl(p, src, dest, netif) \
ip6_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif)
#define ip_route(src, dest) \
ip6_route(src, dest)
#define ip_netif_get_local_ip(netif, dest) \
ip6_netif_get_local_ip(netif, dest)
#define ip_debug_print(is_ipv6, p) ip6_debug_print(p)
#define ip_input ip6_input
#endif /* LWIP_IPV6 */
#define ip_route_get_local_ip(src, dest, netif, ipaddr) do { \
(netif) = ip_route(src, dest); \
(ipaddr) = ip_netif_get_local_ip(netif, dest); \
}while(0)
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_IP_H */

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/**
* @file
* IPv4 API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_IP4_H
#define LWIP_HDR_IP4_H
#include "lwip/opt.h"
#if LWIP_IPV4
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/ip4_addr.h"
#include "lwip/err.h"
#include "lwip/netif.h"
#include "lwip/prot/ip4.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef LWIP_HOOK_IP4_ROUTE_SRC
#define LWIP_IPV4_SRC_ROUTING 1
#else
#define LWIP_IPV4_SRC_ROUTING 0
#endif
/** Currently, the function ip_output_if_opt() is only used with IGMP */
#define IP_OPTIONS_SEND (LWIP_IPV4 && LWIP_IGMP)
#define ip_init() /* Compatibility define, no init needed. */
struct netif *ip4_route(const ip4_addr_t *dest);
#if LWIP_IPV4_SRC_ROUTING
struct netif *ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest);
#else /* LWIP_IPV4_SRC_ROUTING */
#define ip4_route_src(src, dest) ip4_route(dest)
#endif /* LWIP_IPV4_SRC_ROUTING */
err_t ip4_input(struct pbuf *p, struct netif *inp);
err_t ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto);
err_t ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif);
err_t ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif);
#if LWIP_NETIF_USE_HINTS
err_t ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint);
#endif /* LWIP_NETIF_USE_HINTS */
#if IP_OPTIONS_SEND
err_t ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
u16_t optlen);
err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
u16_t optlen);
#endif /* IP_OPTIONS_SEND */
#if LWIP_MULTICAST_TX_OPTIONS
void ip4_set_default_multicast_netif(struct netif* default_multicast_netif);
#endif /* LWIP_MULTICAST_TX_OPTIONS */
#define ip4_netif_get_local_ip(netif) (((netif) != NULL) ? netif_ip_addr4(netif) : NULL)
#if IP_DEBUG
void ip4_debug_print(struct pbuf *p);
#else
#define ip4_debug_print(p)
#endif /* IP_DEBUG */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 */
#endif /* LWIP_HDR_IP_H */

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/**
* @file
* IPv4 address API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_IP4_ADDR_H
#define LWIP_HDR_IP4_ADDR_H
#include "lwip/opt.h"
#include "lwip/def.h"
#if LWIP_IPV4
#ifdef __cplusplus
extern "C" {
#endif
/** This is the aligned version of ip4_addr_t,
used as local variable, on the stack, etc. */
struct ip4_addr {
u32_t addr;
};
/** ip4_addr_t uses a struct for convenience only, so that the same defines can
* operate both on ip4_addr_t as well as on ip4_addr_p_t. */
typedef struct ip4_addr ip4_addr_t;
/* Forward declaration to not include netif.h */
struct netif;
/** 255.255.255.255 */
#define IPADDR_NONE ((u32_t)0xffffffffUL)
/** 127.0.0.1 */
#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL)
/** 0.0.0.0 */
#define IPADDR_ANY ((u32_t)0x00000000UL)
/** 255.255.255.255 */
#define IPADDR_BROADCAST ((u32_t)0xffffffffUL)
/* Definitions of the bits in an Internet address integer.
On subnets, host and network parts are found according to
the subnet mask, not these masks. */
#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
#define IP_CLASSA_NET 0xff000000
#define IP_CLASSA_NSHIFT 24
#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET)
#define IP_CLASSA_MAX 128
#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
#define IP_CLASSB_NET 0xffff0000
#define IP_CLASSB_NSHIFT 16
#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET)
#define IP_CLASSB_MAX 65536
#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
#define IP_CLASSC_NET 0xffffff00
#define IP_CLASSC_NSHIFT 8
#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET)
#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */
#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */
#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */
#define IP_MULTICAST(a) IP_CLASSD(a)
#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
#define IP_LOOPBACKNET 127 /* official! */
/** Set an IP address given by the four byte-parts */
#define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = PP_HTONL(LWIP_MAKEU32(a,b,c,d))
/** Copy IP address - faster than ip4_addr_set: no NULL check */
#define ip4_addr_copy(dest, src) ((dest).addr = (src).addr)
/** Safely copy one IP address to another (src may be NULL) */
#define ip4_addr_set(dest, src) ((dest)->addr = \
((src) == NULL ? 0 : \
(src)->addr))
/** Set complete address to zero */
#define ip4_addr_set_zero(ipaddr) ((ipaddr)->addr = 0)
/** Set address to IPADDR_ANY (no need for lwip_htonl()) */
#define ip4_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY)
/** Set address to loopback address */
#define ip4_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
/** Check if an address is in the loopback region */
#define ip4_addr_isloopback(ipaddr) (((ipaddr)->addr & PP_HTONL(IP_CLASSA_NET)) == PP_HTONL(((u32_t)IP_LOOPBACKNET) << 24))
/** Safely copy one IP address to another and change byte order
* from host- to network-order. */
#define ip4_addr_set_hton(dest, src) ((dest)->addr = \
((src) == NULL ? 0:\
lwip_htonl((src)->addr)))
/** IPv4 only: set the IP address given as an u32_t */
#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
/** IPv4 only: get the IP address as an u32_t */
#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
/** Get the network address by combining host address with netmask */
#define ip4_addr_get_network(target, host, netmask) do { ((target)->addr = ((host)->addr) & ((netmask)->addr)); } while(0)
/**
* Determine if two address are on the same network.
*
* @arg addr1 IP address 1
* @arg addr2 IP address 2
* @arg mask network identifier mask
* @return !0 if the network identifiers of both address match
*/
#define ip4_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
(mask)->addr) == \
((addr2)->addr & \
(mask)->addr))
#define ip4_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
#define ip4_addr_isany_val(addr1) ((addr1).addr == IPADDR_ANY)
#define ip4_addr_isany(addr1) ((addr1) == NULL || ip4_addr_isany_val(*(addr1)))
#define ip4_addr_isbroadcast(addr1, netif) ip4_addr_isbroadcast_u32((addr1)->addr, netif)
u8_t ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif);
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
u8_t ip4_addr_netmask_valid(u32_t netmask);
#define ip4_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
#define ip4_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
#define ip4_addr_debug_print_parts(debug, a, b, c, d) \
LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, a, b, c, d))
#define ip4_addr_debug_print(debug, ipaddr) \
ip4_addr_debug_print_parts(debug, \
(u16_t)((ipaddr) != NULL ? ip4_addr1_16(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? ip4_addr2_16(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? ip4_addr3_16(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? ip4_addr4_16(ipaddr) : 0))
#define ip4_addr_debug_print_val(debug, ipaddr) \
ip4_addr_debug_print_parts(debug, \
ip4_addr1_16_val(ipaddr), \
ip4_addr2_16_val(ipaddr), \
ip4_addr3_16_val(ipaddr), \
ip4_addr4_16_val(ipaddr))
/* Get one byte from the 4-byte address */
#define ip4_addr_get_byte(ipaddr, idx) (((const u8_t*)(&(ipaddr)->addr))[idx])
#define ip4_addr1(ipaddr) ip4_addr_get_byte(ipaddr, 0)
#define ip4_addr2(ipaddr) ip4_addr_get_byte(ipaddr, 1)
#define ip4_addr3(ipaddr) ip4_addr_get_byte(ipaddr, 2)
#define ip4_addr4(ipaddr) ip4_addr_get_byte(ipaddr, 3)
/* Get one byte from the 4-byte address, but argument is 'ip4_addr_t',
* not a pointer */
#define ip4_addr_get_byte_val(ipaddr, idx) ((u8_t)(((ipaddr).addr >> (idx * 8)) & 0xff))
#define ip4_addr1_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 0)
#define ip4_addr2_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 1)
#define ip4_addr3_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 2)
#define ip4_addr4_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 3)
/* These are cast to u16_t, with the intent that they are often arguments
* to printf using the U16_F format from cc.h. */
#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
#define ip4_addr1_16_val(ipaddr) ((u16_t)ip4_addr1_val(ipaddr))
#define ip4_addr2_16_val(ipaddr) ((u16_t)ip4_addr2_val(ipaddr))
#define ip4_addr3_16_val(ipaddr) ((u16_t)ip4_addr3_val(ipaddr))
#define ip4_addr4_16_val(ipaddr) ((u16_t)ip4_addr4_val(ipaddr))
#define IP4ADDR_STRLEN_MAX 16
/** For backwards compatibility */
#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr)
u32_t ipaddr_addr(const char *cp);
int ip4addr_aton(const char *cp, ip4_addr_t *addr);
/** returns ptr to static buffer; not reentrant! */
char *ip4addr_ntoa(const ip4_addr_t *addr);
char *ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 */
#endif /* LWIP_HDR_IP_ADDR_H */

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/**
* @file
* IP fragmentation/reassembly
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Jani Monoses <jani@iv.ro>
*
*/
#ifndef LWIP_HDR_IP4_FRAG_H
#define LWIP_HDR_IP4_FRAG_H
#include "lwip/opt.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/ip_addr.h"
#include "lwip/ip.h"
#if LWIP_IPV4
#ifdef __cplusplus
extern "C" {
#endif
#if IP_REASSEMBLY
/* The IP reassembly timer interval in milliseconds. */
#define IP_TMR_INTERVAL 1000
/** IP reassembly helper struct.
* This is exported because memp needs to know the size.
*/
struct ip_reassdata {
struct ip_reassdata *next;
struct pbuf *p;
struct ip_hdr iphdr;
u16_t datagram_len;
u8_t flags;
u8_t timer;
};
void ip_reass_init(void);
void ip_reass_tmr(void);
struct pbuf * ip4_reass(struct pbuf *p);
#endif /* IP_REASSEMBLY */
#if IP_FRAG
#if !LWIP_NETIF_TX_SINGLE_PBUF
#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED
#define LWIP_PBUF_CUSTOM_REF_DEFINED
/** A custom pbuf that holds a reference to another pbuf, which is freed
* when this custom pbuf is freed. This is used to create a custom PBUF_REF
* that points into the original pbuf. */
struct pbuf_custom_ref {
/** 'base class' */
struct pbuf_custom pc;
/** pointer to the original pbuf that is referenced */
struct pbuf *original;
};
#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */
#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */
err_t ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest);
#endif /* IP_FRAG */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 */
#endif /* LWIP_HDR_IP4_FRAG_H */

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/**
* @file ip4_napt.h
* This is a private interface of ip4_napt used from ip4.c
*
* @see ip4_napt.c
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* original reassembly code by Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_IP4_NAPT_H
#define LWIP_HDR_IP4_NAPT_H
#include "lwip/opt.h"
#if ESP_LWIP
#if IP_FORWARD
#if IP_NAPT
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/ip4_addr.h"
#include "lwip/err.h"
#include "lwip/netif.h"
#include "lwip/prot/ip4.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/err.h"
#include "lwip/ip4.h"
/**
* NAPT for a forwarded packet. It checks weather we need NAPT and modify
* the packet source address and port if needed.
*
* @param p the packet to forward (p->payload points to IP header)
* @param iphdr the IP header of the input packet
* @param inp the netif on which this packet was received
* @param outp the netif on which this packet will be sent
* @return ERR_OK if packet should be sent, or ERR_RTE if it should be dropped
*/
err_t
ip_napt_forward(struct pbuf *p, struct ip_hdr *iphdr, struct netif *inp, struct netif *outp);
/**
* NAPT for an input packet. It checks weather the destination is on NAPT
* table and modify the packet destination address and port if needed.
*
* @param p the packet to forward (p->payload points to IP header)
* @param iphdr the IP header of the input packet
* @param inp the netif on which this packet was received
*/
void
ip_napt_recv(struct pbuf *p, struct ip_hdr *iphdr);
#ifdef __cplusplus
}
#endif
#endif /* IP_NAPT */
#endif /* IP_FORWARD */
#endif /* ESP_LWIP */
#endif /* LWIP_HDR_IP4_NAPT_H */

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/**
* @file
*
* IPv6 layer.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_IP6_H
#define LWIP_HDR_IP6_H
#include "lwip/opt.h"
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip6_addr.h"
#include "lwip/prot/ip6.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
struct netif *ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest);
const ip_addr_t *ip6_select_source_address(struct netif *netif, const ip6_addr_t * dest);
err_t ip6_input(struct pbuf *p, struct netif *inp);
err_t ip6_output(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest,
u8_t hl, u8_t tc, u8_t nexth);
err_t ip6_output_if(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest,
u8_t hl, u8_t tc, u8_t nexth, struct netif *netif);
err_t ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest,
u8_t hl, u8_t tc, u8_t nexth, struct netif *netif);
#if LWIP_NETIF_USE_HINTS
err_t ip6_output_hinted(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest,
u8_t hl, u8_t tc, u8_t nexth, struct netif_hint *netif_hint);
#endif /* LWIP_NETIF_USE_HINTS */
#if LWIP_IPV6_MLD
err_t ip6_options_add_hbh_ra(struct pbuf * p, u8_t nexth, u8_t value);
#endif /* LWIP_IPV6_MLD */
#define ip6_netif_get_local_ip(netif, dest) (((netif) != NULL) ? \
ip6_select_source_address(netif, dest) : NULL)
#if IP6_DEBUG
void ip6_debug_print(struct pbuf *p);
#else
#define ip6_debug_print(p)
#endif /* IP6_DEBUG */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 */
#endif /* LWIP_HDR_IP6_H */

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/**
* @file
*
* IPv6 addresses.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
* Structs and macros for handling IPv6 addresses.
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_IP6_ADDR_H
#define LWIP_HDR_IP6_ADDR_H
#include "lwip/opt.h"
#include "def.h"
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip6_zone.h"
#ifdef __cplusplus
extern "C" {
#endif
/** This is the aligned version of ip6_addr_t,
used as local variable, on the stack, etc. */
struct ip6_addr {
u32_t addr[4];
#if LWIP_IPV6_SCOPES
u8_t zone;
#endif /* LWIP_IPV6_SCOPES */
};
/** IPv6 address */
typedef struct ip6_addr ip6_addr_t;
/** Set an IPv6 partial address given by byte-parts */
#define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \
(ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d))
/** Set a full IPv6 address by passing the 4 u32_t indices in network byte order
(use PP_HTONL() for constants) */
#define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \
(ip6addr)->addr[0] = idx0; \
(ip6addr)->addr[1] = idx1; \
(ip6addr)->addr[2] = idx2; \
(ip6addr)->addr[3] = idx3; \
ip6_addr_clear_zone(ip6addr); } while(0)
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff))
/** Access address in 16-bit block */
#define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff))
/** Copy IPv6 address - faster than ip6_addr_set: no NULL check */
#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \
(dest).addr[1] = (src).addr[1]; \
(dest).addr[2] = (src).addr[2]; \
(dest).addr[3] = (src).addr[3]; \
ip6_addr_copy_zone((dest), (src)); }while(0)
/** Safely copy one IPv6 address to another (src may be NULL) */
#define ip6_addr_set(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \
(dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \
(dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \
(dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3]; \
ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0)
/** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */
#define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
(dest).addr[1] = (src).addr[1]; \
(dest).addr[2] = (src).addr[2]; \
(dest).addr[3] = (src).addr[3]; \
ip6_addr_clear_zone(&dest); }while(0)
/** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */
#define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
(dest).addr[1] = (src).addr[1]; \
(dest).addr[2] = (src).addr[2]; \
(dest).addr[3] = (src).addr[3]; }while(0)
/** Set complete address to zero */
#define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[2] = 0; \
(ip6addr)->addr[3] = 0; \
ip6_addr_clear_zone(ip6addr);}while(0)
/** Set address to ipv6 'any' (no need for lwip_htonl()) */
#define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr)
/** Set address to ipv6 loopback address */
#define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[2] = 0; \
(ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
ip6_addr_clear_zone(ip6addr);}while(0)
/** Safely copy one IPv6 address to another and change byte order
* from host- to network-order. */
#define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \
(dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \
(dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \
(dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \
ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0)
/** Compare IPv6 networks, ignoring zone information. To be used sparingly! */
#define ip6_addr_netcmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
((addr1)->addr[1] == (addr2)->addr[1]))
/**
* Determine if two IPv6 address are on the same network.
*
* @param addr1 IPv6 address 1
* @param addr2 IPv6 address 2
* @return 1 if the network identifiers of both address match, 0 if not
*/
#define ip6_addr_netcmp(addr1, addr2) (ip6_addr_netcmp_zoneless((addr1), (addr2)) && \
ip6_addr_cmp_zone((addr1), (addr2)))
/* Exact-host comparison *after* ip6_addr_netcmp() succeeded, for efficiency. */
#define ip6_addr_nethostcmp(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \
((addr1)->addr[3] == (addr2)->addr[3]))
/** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */
#define ip6_addr_cmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
((addr1)->addr[1] == (addr2)->addr[1]) && \
((addr1)->addr[2] == (addr2)->addr[2]) && \
((addr1)->addr[3] == (addr2)->addr[3]))
/**
* Determine if two IPv6 addresses are the same. In particular, the address
* part of both must be the same, and the zone must be compatible.
*
* @param addr1 IPv6 address 1
* @param addr2 IPv6 address 2
* @return 1 if the addresses are considered equal, 0 if not
*/
#define ip6_addr_cmp(addr1, addr2) (ip6_addr_cmp_zoneless((addr1), (addr2)) && \
ip6_addr_cmp_zone((addr1), (addr2)))
/** Compare IPv6 address to packed address and zone */
#define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \
((ip6addr)->addr[1] == (paddr)->addr[1]) && \
((ip6addr)->addr[2] == (paddr)->addr[2]) && \
((ip6addr)->addr[3] == (paddr)->addr[3]) && \
ip6_addr_equals_zone((ip6addr), (zone_idx)))
#define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL)
#define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \
((ip6addr).addr[1] == 0) && \
((ip6addr).addr[2] == 0) && \
((ip6addr).addr[3] == 0))
#define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr)))
#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \
((ip6addr)->addr[1] == 0UL) && \
((ip6addr)->addr[2] == 0UL) && \
((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
#define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))
#define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))
#define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))
#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))
#define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL)))
#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))
#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))
#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))
#define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))
#define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf)
#define IP6_MULTICAST_SCOPE_RESERVED 0x0
#define IP6_MULTICAST_SCOPE_RESERVED0 0x0
#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1
#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2
#define IP6_MULTICAST_SCOPE_RESERVED3 0x3
#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4
#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5
#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8
#define IP6_MULTICAST_SCOPE_GLOBAL 0xe
#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf
#define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL))
#define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL))
#define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL))
#define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL))
#define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL))
#define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL))
/* Scoping note: while interface-local and link-local multicast addresses do
* have a scope (i.e., they are meaningful only in the context of a particular
* interface), the following functions are not assigning or comparing zone
* indices. The reason for this is backward compatibility. Any call site that
* produces a non-global multicast address must assign a multicast address as
* appropriate itself. */
#define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \
((ip6addr)->addr[1] == 0UL) && \
((ip6addr)->addr[2] == 0UL) && \
((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
#define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
((ip6addr)->addr[1] == 0UL) && \
((ip6addr)->addr[2] == 0UL) && \
((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
#define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[2] = 0; \
(ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
ip6_addr_clear_zone(ip6addr); }while(0)
#define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
((ip6addr)->addr[1] == 0UL) && \
((ip6addr)->addr[2] == 0UL) && \
((ip6addr)->addr[3] == PP_HTONL(0x00000002UL)))
#define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[2] = 0; \
(ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \
ip6_addr_clear_zone(ip6addr); }while(0)
#define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
(((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) )
#define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \
(ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \
ip6_addr_clear_zone(ip6addr); }while(0)
#define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
((ip6addr)->addr[1] == 0) && \
((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3])))
/* IPv6 address states. */
#define IP6_ADDR_INVALID 0x00
#define IP6_ADDR_TENTATIVE 0x08
#define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */
#define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */
#define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */
#define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */
#define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */
#define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */
#define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */
#define IP6_ADDR_VALID 0x10 /* This bit marks an address as valid (preferred or deprecated) */
#define IP6_ADDR_PREFERRED 0x30
#define IP6_ADDR_DEPRECATED 0x10 /* Same as VALID (valid but not preferred) */
#define IP6_ADDR_DUPLICATED 0x40 /* Failed DAD test, not valid */
#define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07 /* 1-7 probes sent */
#define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID)
#define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE)
#define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */
#define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED)
#define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED)
#define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED)
#if LWIP_IPV6_ADDRESS_LIFETIMES
#define IP6_ADDR_LIFE_STATIC (0)
#define IP6_ADDR_LIFE_INFINITE (0xffffffffUL)
#define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC)
#define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE)
#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */
#define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \
LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \
a, b, c, d, e, f, g, h))
#define ip6_addr_debug_print(debug, ipaddr) \
ip6_addr_debug_print_parts(debug, \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \
(u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0))
#define ip6_addr_debug_print_val(debug, ipaddr) \
ip6_addr_debug_print_parts(debug, \
IP6_ADDR_BLOCK1(&(ipaddr)), \
IP6_ADDR_BLOCK2(&(ipaddr)), \
IP6_ADDR_BLOCK3(&(ipaddr)), \
IP6_ADDR_BLOCK4(&(ipaddr)), \
IP6_ADDR_BLOCK5(&(ipaddr)), \
IP6_ADDR_BLOCK6(&(ipaddr)), \
IP6_ADDR_BLOCK7(&(ipaddr)), \
IP6_ADDR_BLOCK8(&(ipaddr)))
#define IP6ADDR_STRLEN_MAX 46
int ip6addr_aton(const char *cp, ip6_addr_t *addr);
/** returns ptr to static buffer; not reentrant! */
char *ip6addr_ntoa(const ip6_addr_t *addr);
char *ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 */
#endif /* LWIP_HDR_IP6_ADDR_H */

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/**
* @file
*
* IPv6 fragmentation and reassembly.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_IP6_FRAG_H
#define LWIP_HDR_IP6_FRAG_H
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip6_addr.h"
#include "lwip/ip6.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */
/** The IPv6 reassembly timer interval in milliseconds. */
#define IP6_REASS_TMR_INTERVAL 1000
/** IP6_FRAG_COPYHEADER==1: for platforms where sizeof(void*) > 4, "struct
* ip6_reass_helper" is too large to be stored in the IPv6 fragment header, and
* will bleed into the header before it, which may be the IPv6 header or an
* extension header. This means that for each first fragment packet, we need to
* 1) make a copy of some IPv6 header fields (src+dest) that we need later on,
* just in case we do overwrite part of the IPv6 header, and 2) make a copy of
* the header data that we overwrote, so that we can restore it before either
* completing reassembly or sending an ICMPv6 reply. The last part is true even
* if this setting is disabled, but if it is enabled, we need to save a bit
* more data (up to the size of a pointer) because we overwrite more. */
#ifndef IPV6_FRAG_COPYHEADER
#define IPV6_FRAG_COPYHEADER 0
#endif
/* With IPV6_FRAG_COPYHEADER==1, a helper structure may (or, depending on the
* presence of extensions, may not) overwrite part of the IP header. Therefore,
* we copy the fields that we need from the IP header for as long as the helper
* structure may still be in place. This is easier than temporarily restoring
* those fields in the IP header each time we need to perform checks on them. */
#if IPV6_FRAG_COPYHEADER
#define IPV6_FRAG_SRC(ipr) ((ipr)->src)
#define IPV6_FRAG_DEST(ipr) ((ipr)->dest)
#else /* IPV6_FRAG_COPYHEADER */
#define IPV6_FRAG_SRC(ipr) ((ipr)->iphdr->src)
#define IPV6_FRAG_DEST(ipr) ((ipr)->iphdr->dest)
#endif /* IPV6_FRAG_COPYHEADER */
/** IPv6 reassembly helper struct.
* This is exported because memp needs to know the size.
*/
struct ip6_reassdata {
struct ip6_reassdata *next;
struct pbuf *p;
struct ip6_hdr *iphdr; /* pointer to the first (original) IPv6 header */
#if IPV6_FRAG_COPYHEADER
ip6_addr_p_t src; /* copy of the source address in the IP header */
ip6_addr_p_t dest; /* copy of the destination address in the IP header */
/* This buffer (for the part of the original header that we overwrite) will
* be slightly oversized, but we cannot compute the exact size from here. */
u8_t orig_hdr[sizeof(struct ip6_frag_hdr) + sizeof(void*)];
#else /* IPV6_FRAG_COPYHEADER */
/* In this case we still need the buffer, for sending ICMPv6 replies. */
u8_t orig_hdr[sizeof(struct ip6_frag_hdr)];
#endif /* IPV6_FRAG_COPYHEADER */
u32_t identification;
u16_t datagram_len;
u8_t nexth;
u8_t timer;
#if LWIP_IPV6_SCOPES
u8_t src_zone; /* zone of original packet's source address */
u8_t dest_zone; /* zone of original packet's destination address */
#endif /* LWIP_IPV6_SCOPES */
};
#define ip6_reass_init() /* Compatibility define */
void ip6_reass_tmr(void);
struct pbuf *ip6_reass(struct pbuf *p);
#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */
#if LWIP_IPV6 && LWIP_IPV6_FRAG /* don't build if not configured for use in lwipopts.h */
#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED
#define LWIP_PBUF_CUSTOM_REF_DEFINED
/** A custom pbuf that holds a reference to another pbuf, which is freed
* when this custom pbuf is freed. This is used to create a custom PBUF_REF
* that points into the original pbuf. */
struct pbuf_custom_ref {
/** 'base class' */
struct pbuf_custom pc;
/** pointer to the original pbuf that is referenced */
struct pbuf *original;
};
#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */
err_t ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest);
#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_IP6_FRAG_H */

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/**
* @file
*
* IPv6 address scopes, zones, and scoping policy.
*
* This header provides the means to implement support for IPv6 address scopes,
* as per RFC 4007. An address scope can be either global or more constrained.
* In lwIP, we say that an address "has a scope" or "is scoped" when its scope
* is constrained, in which case the address is meaningful only in a specific
* "zone." For unicast addresses, only link-local addresses have a scope; in
* that case, the scope is the link. For multicast addresses, there are various
* scopes defined by RFC 4007 and others. For any constrained scope, a system
* must establish a (potentially one-to-many) mapping between zones and local
* interfaces. For example, a link-local address is valid on only one link (its
* zone). That link may be attached to one or more local interfaces. The
* decisions on which scopes are constrained and the mapping between zones and
* interfaces is together what we refer to as the "scoping policy" - more on
* this in a bit.
*
* In lwIP, each IPv6 address has an associated zone index. This zone index may
* be set to "no zone" (IP6_NO_ZONE, 0) or an actual zone. We say that an
* address "has a zone" or "is zoned" when its zone index is *not* set to "no
* zone." In lwIP, in principle, each address should be "properly zoned," which
* means that if the address has a zone if and only if has a scope. As such, it
* is a rule that an unscoped (e.g., global) address must never have a zone.
* Even though one could argue that there is always one zone even for global
* scopes, this rule exists for implementation simplicity. Violation of the
* rule will trigger assertions or otherwise result in undesired behavior.
*
* Backward compatibility prevents us from requiring that applications always
* provide properly zoned addresses. We do enforce the rule that the in the
* lwIP link layer (everything below netif->output_ip6() and in particular ND6)
* *all* addresses are properly zoned. Thus, on the output paths down the
* stack, various places deal with the case of addresses that lack a zone.
* Some of them are best-effort for efficiency (e.g. the PCB bind and connect
* API calls' attempts to add missing zones); ultimately the IPv6 output
* handler (@ref ip6_output_if_src) will set a zone if necessary.
*
* Aside from dealing with scoped addresses lacking a zone, a proper IPv6
* implementation must also ensure that a packet with a scoped source and/or
* destination address does not leave its zone. This is currently implemented
* in the input and forward functions. However, for output, these checks are
* deliberately omitted in order to keep the implementation lightweight. The
* routing algorithm in @ref ip6_route will take decisions such that it will
* not cause zone violations unless the application sets bad addresses, though.
*
* In terms of scoping policy, lwIP implements the default policy from RFC 4007
* using macros in this file. This policy considers link-local unicast
* addresses and (only) interface-local and link-local multicast addresses as
* having a scope. For all these addresses, the zone is equal to the interface.
* As shown below in this file, it is possible to implement a custom policy.
*/
/*
* Copyright (c) 2017 The MINIX 3 Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: David van Moolenbroek <david@minix3.org>
*
*/
#ifndef LWIP_HDR_IP6_ZONE_H
#define LWIP_HDR_IP6_ZONE_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup ip6_zones IPv6 Zones
* @ingroup ip6
* @{
*/
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
/** Identifier for "no zone". */
#define IP6_NO_ZONE 0
#if LWIP_IPV6_SCOPES
/** Zone initializer for static IPv6 address initialization, including comma. */
#define IPADDR6_ZONE_INIT , IP6_NO_ZONE
/** Return the zone index of the given IPv6 address; possibly "no zone". */
#define ip6_addr_zone(ip6addr) ((ip6addr)->zone)
/** Does the given IPv6 address have a zone set? (0/1) */
#define ip6_addr_has_zone(ip6addr) (ip6_addr_zone(ip6addr) != IP6_NO_ZONE)
/** Set the zone field of an IPv6 address to a particular value. */
#define ip6_addr_set_zone(ip6addr, zone_idx) ((ip6addr)->zone = (zone_idx))
/** Clear the zone field of an IPv6 address, setting it to "no zone". */
#define ip6_addr_clear_zone(ip6addr) ((ip6addr)->zone = IP6_NO_ZONE)
/** Copy the zone field from the second IPv6 address to the first one. */
#define ip6_addr_copy_zone(ip6addr1, ip6addr2) ((ip6addr1).zone = (ip6addr2).zone)
/** Is the zone field of the given IPv6 address equal to the given zone index? (0/1) */
#define ip6_addr_equals_zone(ip6addr, zone_idx) ((ip6addr)->zone == (zone_idx))
/** Are the zone fields of the given IPv6 addresses equal? (0/1)
* This macro must only be used on IPv6 addresses of the same scope. */
#define ip6_addr_cmp_zone(ip6addr1, ip6addr2) ((ip6addr1)->zone == (ip6addr2)->zone)
/** Symbolic constants for the 'type' parameters in some of the macros.
* These exist for efficiency only, allowing the macros to avoid certain tests
* when the address is known not to be of a certain type. Dead code elimination
* will do the rest. IP6_MULTICAST is supported but currently not optimized.
* @see ip6_addr_has_scope, ip6_addr_assign_zone, ip6_addr_lacks_zone.
*/
enum lwip_ipv6_scope_type
{
/** Unknown */
IP6_UNKNOWN = 0,
/** Unicast */
IP6_UNICAST = 1,
/** Multicast */
IP6_MULTICAST = 2
};
/** IPV6_CUSTOM_SCOPES: together, the following three macro definitions,
* @ref ip6_addr_has_scope, @ref ip6_addr_assign_zone, and
* @ref ip6_addr_test_zone, completely define the lwIP scoping policy.
* The definitions below implement the default policy from RFC 4007 Sec. 6.
* Should an implementation desire to implement a different policy, it can
* define IPV6_CUSTOM_SCOPES to 1 and supply its own definitions for the three
* macros instead.
*/
#ifndef IPV6_CUSTOM_SCOPES
#define IPV6_CUSTOM_SCOPES 0
#endif /* !IPV6_CUSTOM_SCOPES */
#if !IPV6_CUSTOM_SCOPES
/**
* Determine whether an IPv6 address has a constrained scope, and as such is
* meaningful only if accompanied by a zone index to identify the scope's zone.
* The given address type may be used to eliminate at compile time certain
* checks that will evaluate to false at run time anyway.
*
* This default implementation follows the default model of RFC 4007, where
* only interface-local and link-local scopes are defined.
*
* Even though the unicast loopback address does have an implied link-local
* scope, in this implementation it does not have an explicitly assigned zone
* index. As such it should not be tested for in this macro.
*
* @param ip6addr the IPv6 address (const); only its address part is examined.
* @param type address type; see @ref lwip_ipv6_scope_type.
* @return 1 if the address has a constrained scope, 0 if it does not.
*/
#define ip6_addr_has_scope(ip6addr, type) \
(ip6_addr_islinklocal(ip6addr) || (((type) != IP6_UNICAST) && \
(ip6_addr_ismulticast_iflocal(ip6addr) || \
ip6_addr_ismulticast_linklocal(ip6addr))))
/**
* Assign a zone index to an IPv6 address, based on a network interface. If the
* given address has a scope, the assigned zone index is that scope's zone of
* the given netif; otherwise, the assigned zone index is "no zone".
*
* This default implementation follows the default model of RFC 4007, where
* only interface-local and link-local scopes are defined, and the zone index
* of both of those scopes always equals the index of the network interface.
* As such, this default implementation need not distinguish between different
* constrained scopes when assigning the zone.
*
* @param ip6addr the IPv6 address; its address part is examined, and its zone
* index is assigned.
* @param type address type; see @ref lwip_ipv6_scope_type.
* @param netif the network interface (const).
*/
#define ip6_addr_assign_zone(ip6addr, type, netif) \
(ip6_addr_set_zone((ip6addr), \
ip6_addr_has_scope((ip6addr), (type)) ? netif_get_index(netif) : 0))
/**
* Test whether an IPv6 address is "zone-compatible" with a network interface.
* That is, test whether the network interface is part of the zone associated
* with the address. For efficiency, this macro is only ever called if the
* given address is either scoped or zoned, and thus, it need not test this.
* If an address is scoped but not zoned, or zoned and not scoped, it is
* considered not zone-compatible with any netif.
*
* This default implementation follows the default model of RFC 4007, where
* only interface-local and link-local scopes are defined, and the zone index
* of both of those scopes always equals the index of the network interface.
* As such, there is always only one matching netif for a specific zone index,
* but all call sites of this macro currently support multiple matching netifs
* as well (at no additional expense in the common case).
*
* @param ip6addr the IPv6 address (const).
* @param netif the network interface (const).
* @return 1 if the address is scope-compatible with the netif, 0 if not.
*/
#define ip6_addr_test_zone(ip6addr, netif) \
(ip6_addr_equals_zone((ip6addr), netif_get_index(netif)))
#endif /* !IPV6_CUSTOM_SCOPES */
/** Does the given IPv6 address have a scope, and as such should also have a
* zone to be meaningful, but does not actually have a zone? (0/1) */
#define ip6_addr_lacks_zone(ip6addr, type) \
(!ip6_addr_has_zone(ip6addr) && ip6_addr_has_scope((ip6addr), (type)))
/**
* Try to select a zone for a scoped address that does not yet have a zone.
* Called from PCB bind and connect routines, for two reasons: 1) to save on
* this (relatively expensive) selection for every individual packet route
* operation and 2) to allow the application to obtain the selected zone from
* the PCB as is customary for e.g. getsockname/getpeername BSD socket calls.
*
* Ideally, callers would always supply a properly zoned address, in which case
* this function would not be needed. It exists both for compatibility with the
* BSD socket API (which accepts zoneless destination addresses) and for
* backward compatibility with pre-scoping lwIP code.
*
* It may be impossible to select a zone, e.g. if there are no netifs. In that
* case, the address's zone field will be left as is.
*
* @param dest the IPv6 address for which to select and set a zone.
* @param src source IPv6 address (const); may be equal to dest.
*/
#define ip6_addr_select_zone(dest, src) do { struct netif *selected_netif; \
selected_netif = ip6_route((src), (dest)); \
if (selected_netif != NULL) { \
ip6_addr_assign_zone((dest), IP6_UNKNOWN, selected_netif); \
} } while (0)
/**
* @}
*/
#else /* LWIP_IPV6_SCOPES */
#define IPADDR6_ZONE_INIT
#define ip6_addr_zone(ip6addr) (IP6_NO_ZONE)
#define ip6_addr_has_zone(ip6addr) (0)
#define ip6_addr_set_zone(ip6addr, zone_idx)
#define ip6_addr_clear_zone(ip6addr)
#define ip6_addr_copy_zone(ip6addr1, ip6addr2)
#define ip6_addr_equals_zone(ip6addr, zone_idx) (1)
#define ip6_addr_cmp_zone(ip6addr1, ip6addr2) (1)
#define IPV6_CUSTOM_SCOPES 0
#define ip6_addr_has_scope(ip6addr, type) (0)
#define ip6_addr_assign_zone(ip6addr, type, netif)
#define ip6_addr_test_zone(ip6addr, netif) (1)
#define ip6_addr_lacks_zone(ip6addr, type) (0)
#define ip6_addr_select_zone(ip6addr, src)
#endif /* LWIP_IPV6_SCOPES */
#if LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG
/** Verify that the given IPv6 address is properly zoned. */
#define IP6_ADDR_ZONECHECK(ip6addr) LWIP_ASSERT("IPv6 zone check failed", \
ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) == ip6_addr_has_zone(ip6addr))
/** Verify that the given IPv6 address is properly zoned for the given netif. */
#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif) LWIP_ASSERT("IPv6 netif zone check failed", \
ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) ? \
(ip6_addr_has_zone(ip6addr) && \
(((netif) == NULL) || ip6_addr_test_zone((ip6addr), (netif)))) : \
!ip6_addr_has_zone(ip6addr))
#else /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */
#define IP6_ADDR_ZONECHECK(ip6addr)
#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif)
#endif /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */
#endif /* LWIP_IPV6 */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_IP6_ZONE_H */

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/**
* @file
* IP address API (common IPv4 and IPv6)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_IP_ADDR_H
#define LWIP_HDR_IP_ADDR_H
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/ip4_addr.h"
#include "lwip/ip6_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @ingroup ipaddr
* IP address types for use in ip_addr_t.type member.
* @see tcp_new_ip_type(), udp_new_ip_type(), raw_new_ip_type().
*/
enum lwip_ip_addr_type {
/** IPv4 */
IPADDR_TYPE_V4 = 0U,
/** IPv6 */
IPADDR_TYPE_V6 = 6U,
/** IPv4+IPv6 ("dual-stack") */
IPADDR_TYPE_ANY = 46U
};
#if LWIP_IPV4 && LWIP_IPV6
/**
* @ingroup ipaddr
* A union struct for both IP version's addresses.
* ATTENTION: watch out for its size when adding IPv6 address scope!
*/
typedef struct ip_addr {
union {
ip6_addr_t ip6;
ip4_addr_t ip4;
} u_addr;
/** @ref lwip_ip_addr_type */
u8_t type;
} ip_addr_t;
extern const ip_addr_t ip_addr_any_type;
/** @ingroup ip4addr */
#define IPADDR4_INIT(u32val) { { { { u32val, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V4 }
/** @ingroup ip4addr */
#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d)))
/** @ingroup ip6addr */
#define IPADDR6_INIT(a, b, c, d) { { { { a, b, c, d } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 }
/** @ingroup ip6addr */
#define IPADDR6_INIT_HOST(a, b, c, d) { { { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 }
/** @ingroup ipaddr */
#define IP_IS_ANY_TYPE_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_ANY)
/** @ingroup ipaddr */
#define IPADDR_ANY_TYPE_INIT { { { { 0ul, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_ANY }
/** @ingroup ip4addr */
#define IP_IS_V4_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4)
/** @ingroup ip6addr */
#define IP_IS_V6_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V6)
/** @ingroup ip4addr */
#define IP_IS_V4(ipaddr) (((ipaddr) == NULL) || IP_IS_V4_VAL(*(ipaddr)))
/** @ingroup ip6addr */
#define IP_IS_V6(ipaddr) (((ipaddr) != NULL) && IP_IS_V6_VAL(*(ipaddr)))
#define IP_SET_TYPE_VAL(ipaddr, iptype) do { (ipaddr).type = (iptype); }while(0)
#define IP_SET_TYPE(ipaddr, iptype) do { if((ipaddr) != NULL) { IP_SET_TYPE_VAL(*(ipaddr), iptype); }}while(0)
#define IP_GET_TYPE(ipaddr) ((ipaddr)->type)
#define IP_ADDR_RAW_SIZE(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4 ? sizeof(ip4_addr_t) : sizeof(ip6_addr_t))
#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) (IP_GET_TYPE(&pcb->local_ip) == IP_GET_TYPE(ipaddr))
#define IP_ADDR_PCB_VERSION_MATCH(pcb, ipaddr) (IP_IS_ANY_TYPE_VAL(pcb->local_ip) || IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr))
/** @ingroup ip6addr
* Convert generic ip address to specific protocol version
*/
#define ip_2_ip6(ipaddr) (&((ipaddr)->u_addr.ip6))
/** @ingroup ip4addr
* Convert generic ip address to specific protocol version
*/
#define ip_2_ip4(ipaddr) (&((ipaddr)->u_addr.ip4))
/** @ingroup ip4addr */
#define IP_ADDR4(ipaddr,a,b,c,d) do { IP4_ADDR(ip_2_ip4(ipaddr),a,b,c,d); \
IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V4); } while(0)
/** @ingroup ip6addr */
#define IP_ADDR6(ipaddr,i0,i1,i2,i3) do { IP6_ADDR(ip_2_ip6(ipaddr),i0,i1,i2,i3); \
IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V6); } while(0)
/** @ingroup ip6addr */
#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3))
#define ip_clear_no4(ipaddr) do { ip_2_ip6(ipaddr)->addr[1] = \
ip_2_ip6(ipaddr)->addr[2] = \
ip_2_ip6(ipaddr)->addr[3] = 0; \
ip6_addr_clear_zone(ip_2_ip6(ipaddr)); }while(0)
#if ESP_IPV6
#define IP_V6_EQ_PART(ipaddr, WORD, VAL) (ip_2_ip6(ipaddr)->addr[WORD] == htonl(VAL))
#define IP_IS_V4MAPPEDV6(ipaddr) (IP_IS_V6(ipaddr) && IP_V6_EQ_PART(ipaddr, 0, 0) && IP_V6_EQ_PART(ipaddr, 1, 0) && IP_V6_EQ_PART(ipaddr, 2, 0x0000FFFF))
#endif
/** @ingroup ipaddr */
#define ip_addr_copy(dest, src) do{ IP_SET_TYPE_VAL(dest, IP_GET_TYPE(&src)); if(IP_IS_V6_VAL(src)){ \
ip6_addr_copy(*ip_2_ip6(&(dest)), *ip_2_ip6(&(src))); }else{ \
ip4_addr_copy(*ip_2_ip4(&(dest)), *ip_2_ip4(&(src))); ip_clear_no4(&dest); }}while(0)
/** @ingroup ip6addr */
#define ip_addr_copy_from_ip6(dest, src) do{ \
ip6_addr_copy(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0)
/** @ingroup ip6addr */
#define ip_addr_copy_from_ip6_packed(dest, src) do{ \
ip6_addr_copy_from_packed(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0)
/** @ingroup ip4addr */
#define ip_addr_copy_from_ip4(dest, src) do{ \
ip4_addr_copy(*ip_2_ip4(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V4); ip_clear_no4(&dest); }while(0)
/** @ingroup ip4addr */
#define ip_addr_set_ip4_u32(ipaddr, val) do{if(ipaddr){ip4_addr_set_u32(ip_2_ip4(ipaddr), val); \
IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0)
/** @ingroup ip4addr */
#define ip_addr_set_ip4_u32_val(ipaddr, val) do{ ip4_addr_set_u32(ip_2_ip4(&(ipaddr)), val); \
IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }while(0)
/** @ingroup ip4addr */
#define ip_addr_get_ip4_u32(ipaddr) (((ipaddr) && IP_IS_V4(ipaddr)) ? \
ip4_addr_get_u32(ip_2_ip4(ipaddr)) : 0)
/** @ingroup ipaddr */
#define ip_addr_set(dest, src) do{ IP_SET_TYPE(dest, IP_GET_TYPE(src)); if(IP_IS_V6(src)){ \
ip6_addr_set(ip_2_ip6(dest), ip_2_ip6(src)); }else{ \
ip4_addr_set(ip_2_ip4(dest), ip_2_ip4(src)); ip_clear_no4(dest); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_set_ipaddr(dest, src) ip_addr_set(dest, src)
/** @ingroup ipaddr */
#define ip_addr_set_zero(ipaddr) do{ \
ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, 0); }while(0)
/** @ingroup ip5addr */
#define ip_addr_set_zero_ip4(ipaddr) do{ \
ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); }while(0)
/** @ingroup ip6addr */
#define ip_addr_set_zero_ip6(ipaddr) do{ \
ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }while(0)
/** @ingroup ipaddr */
#define ip_addr_set_any(is_ipv6, ipaddr) do{if(is_ipv6){ \
ip6_addr_set_any(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \
ip4_addr_set_any(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_set_any_val(is_ipv6, ipaddr) do{if(is_ipv6){ \
ip6_addr_set_any(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \
ip4_addr_set_any(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_set_loopback(is_ipv6, ipaddr) do{if(is_ipv6){ \
ip6_addr_set_loopback(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \
ip4_addr_set_loopback(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_set_loopback_val(is_ipv6, ipaddr) do{if(is_ipv6){ \
ip6_addr_set_loopback(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \
ip4_addr_set_loopback(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_set_hton(dest, src) do{if(IP_IS_V6(src)){ \
ip6_addr_set_hton(ip_2_ip6(dest), ip_2_ip6(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V6); }else{ \
ip4_addr_set_hton(ip_2_ip4(dest), ip_2_ip4(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_get_network(target, host, netmask) do{if(IP_IS_V6(host)){ \
ip4_addr_set_zero(ip_2_ip4(target)); IP_SET_TYPE(target, IPADDR_TYPE_V6); } else { \
ip4_addr_get_network(ip_2_ip4(target), ip_2_ip4(host), ip_2_ip4(netmask)); IP_SET_TYPE(target, IPADDR_TYPE_V4); }}while(0)
/** @ingroup ipaddr */
#define ip_addr_netcmp(addr1, addr2, mask) ((IP_IS_V6(addr1) && IP_IS_V6(addr2)) ? \
0 : \
ip4_addr_netcmp(ip_2_ip4(addr1), ip_2_ip4(addr2), mask))
/** @ingroup ipaddr */
#define ip_addr_cmp(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \
ip6_addr_cmp(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \
ip4_addr_cmp(ip_2_ip4(addr1), ip_2_ip4(addr2))))
/** @ingroup ipaddr */
#define ip_addr_cmp_zoneless(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \
ip6_addr_cmp_zoneless(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \
ip4_addr_cmp(ip_2_ip4(addr1), ip_2_ip4(addr2))))
/** @ingroup ipaddr */
#define ip_addr_isany(ipaddr) (((ipaddr) == NULL) ? 1 : ((IP_IS_V6(ipaddr)) ? \
ip6_addr_isany(ip_2_ip6(ipaddr)) : \
ip4_addr_isany(ip_2_ip4(ipaddr))))
/** @ingroup ipaddr */
#define ip_addr_isany_val(ipaddr) ((IP_IS_V6_VAL(ipaddr)) ? \
ip6_addr_isany_val(*ip_2_ip6(&(ipaddr))) : \
ip4_addr_isany_val(*ip_2_ip4(&(ipaddr))))
/** @ingroup ipaddr */
#define ip_addr_isbroadcast(ipaddr, netif) ((IP_IS_V6(ipaddr)) ? \
0 : \
ip4_addr_isbroadcast(ip_2_ip4(ipaddr), netif))
/** @ingroup ipaddr */
#define ip_addr_ismulticast(ipaddr) ((IP_IS_V6(ipaddr)) ? \
ip6_addr_ismulticast(ip_2_ip6(ipaddr)) : \
ip4_addr_ismulticast(ip_2_ip4(ipaddr)))
/** @ingroup ipaddr */
#define ip_addr_isloopback(ipaddr) ((IP_IS_V6(ipaddr)) ? \
ip6_addr_isloopback(ip_2_ip6(ipaddr)) : \
ip4_addr_isloopback(ip_2_ip4(ipaddr)))
/** @ingroup ipaddr */
#define ip_addr_islinklocal(ipaddr) ((IP_IS_V6(ipaddr)) ? \
ip6_addr_islinklocal(ip_2_ip6(ipaddr)) : \
ip4_addr_islinklocal(ip_2_ip4(ipaddr)))
#define ip_addr_debug_print(debug, ipaddr) do { if(IP_IS_V6(ipaddr)) { \
ip6_addr_debug_print(debug, ip_2_ip6(ipaddr)); } else { \
ip4_addr_debug_print(debug, ip_2_ip4(ipaddr)); }}while(0)
#define ip_addr_debug_print_val(debug, ipaddr) do { if(IP_IS_V6_VAL(ipaddr)) { \
ip6_addr_debug_print_val(debug, *ip_2_ip6(&(ipaddr))); } else { \
ip4_addr_debug_print_val(debug, *ip_2_ip4(&(ipaddr))); }}while(0)
char *ipaddr_ntoa(const ip_addr_t *addr);
char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen);
int ipaddr_aton(const char *cp, ip_addr_t *addr);
/** @ingroup ipaddr */
#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX
/** @ingroup ipaddr */
#define ip4_2_ipv4_mapped_ipv6(ip6addr, ip4addr) do { \
(ip6addr)->addr[3] = (ip4addr)->addr; \
(ip6addr)->addr[2] = PP_HTONL(0x0000FFFFUL); \
(ip6addr)->addr[1] = 0; \
(ip6addr)->addr[0] = 0; \
ip6_addr_clear_zone(ip6addr); } while(0);
/** @ingroup ipaddr */
#define unmap_ipv4_mapped_ipv6(ip4addr, ip6addr) \
(ip4addr)->addr = (ip6addr)->addr[3];
#define IP46_ADDR_ANY(type) (((type) == IPADDR_TYPE_V6)? IP6_ADDR_ANY : IP4_ADDR_ANY)
#else /* LWIP_IPV4 && LWIP_IPV6 */
#define IP_ADDR_PCB_VERSION_MATCH(addr, pcb) 1
#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) 1
#define ip_addr_set_any_val(is_ipv6, ipaddr) ip_addr_set_any(is_ipv6, &(ipaddr))
#define ip_addr_set_loopback_val(is_ipv6, ipaddr) ip_addr_set_loopback(is_ipv6, &(ipaddr))
#if LWIP_IPV4
typedef ip4_addr_t ip_addr_t;
#define IPADDR4_INIT(u32val) { u32val }
#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d)))
#define IP_IS_V4_VAL(ipaddr) 1
#define IP_IS_V6_VAL(ipaddr) 0
#define IP_IS_V4(ipaddr) 1
#define IP_IS_V6(ipaddr) 0
#define IP_IS_ANY_TYPE_VAL(ipaddr) 0
#define IP_SET_TYPE_VAL(ipaddr, iptype)
#define IP_SET_TYPE(ipaddr, iptype)
#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V4
#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip4_addr_t)
#define ip_2_ip4(ipaddr) (ipaddr)
#define IP_ADDR4(ipaddr,a,b,c,d) IP4_ADDR(ipaddr,a,b,c,d)
#define ip_addr_copy(dest, src) ip4_addr_copy(dest, src)
#define ip_addr_copy_from_ip4(dest, src) ip4_addr_copy(dest, src)
#define ip_addr_set_ip4_u32(ipaddr, val) ip4_addr_set_u32(ip_2_ip4(ipaddr), val)
#define ip_addr_set_ip4_u32_val(ipaddr, val) ip_addr_set_ip4_u32(&(ipaddr), val)
#define ip_addr_get_ip4_u32(ipaddr) ip4_addr_get_u32(ip_2_ip4(ipaddr))
#define ip_addr_set(dest, src) ip4_addr_set(dest, src)
#define ip_addr_set_ipaddr(dest, src) ip4_addr_set(dest, src)
#define ip_addr_set_zero(ipaddr) ip4_addr_set_zero(ipaddr)
#define ip_addr_set_zero_ip4(ipaddr) ip4_addr_set_zero(ipaddr)
#define ip_addr_set_any(is_ipv6, ipaddr) ip4_addr_set_any(ipaddr)
#define ip_addr_set_loopback(is_ipv6, ipaddr) ip4_addr_set_loopback(ipaddr)
#define ip_addr_set_hton(dest, src) ip4_addr_set_hton(dest, src)
#define ip_addr_get_network(target, host, mask) ip4_addr_get_network(target, host, mask)
#define ip_addr_netcmp(addr1, addr2, mask) ip4_addr_netcmp(addr1, addr2, mask)
#define ip_addr_cmp(addr1, addr2) ip4_addr_cmp(addr1, addr2)
#define ip_addr_isany(ipaddr) ip4_addr_isany(ipaddr)
#define ip_addr_isany_val(ipaddr) ip4_addr_isany_val(ipaddr)
#define ip_addr_isloopback(ipaddr) ip4_addr_isloopback(ipaddr)
#define ip_addr_islinklocal(ipaddr) ip4_addr_islinklocal(ipaddr)
#define ip_addr_isbroadcast(addr, netif) ip4_addr_isbroadcast(addr, netif)
#define ip_addr_ismulticast(ipaddr) ip4_addr_ismulticast(ipaddr)
#define ip_addr_debug_print(debug, ipaddr) ip4_addr_debug_print(debug, ipaddr)
#define ip_addr_debug_print_val(debug, ipaddr) ip4_addr_debug_print_val(debug, ipaddr)
#define ipaddr_ntoa(ipaddr) ip4addr_ntoa(ipaddr)
#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip4addr_ntoa_r(ipaddr, buf, buflen)
#define ipaddr_aton(cp, addr) ip4addr_aton(cp, addr)
#define IPADDR_STRLEN_MAX IP4ADDR_STRLEN_MAX
#define IP46_ADDR_ANY(type) (IP4_ADDR_ANY)
#else /* LWIP_IPV4 */
typedef ip6_addr_t ip_addr_t;
#define IPADDR6_INIT(a, b, c, d) { { a, b, c, d } IPADDR6_ZONE_INIT }
#define IPADDR6_INIT_HOST(a, b, c, d) { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT }
#define IP_IS_V4_VAL(ipaddr) 0
#define IP_IS_V6_VAL(ipaddr) 1
#define IP_IS_V4(ipaddr) 0
#define IP_IS_V6(ipaddr) 1
#define IP_IS_ANY_TYPE_VAL(ipaddr) 0
#define IP_SET_TYPE_VAL(ipaddr, iptype)
#define IP_SET_TYPE(ipaddr, iptype)
#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V6
#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip6_addr_t)
#define ip_2_ip6(ipaddr) (ipaddr)
#define IP_ADDR6(ipaddr,i0,i1,i2,i3) IP6_ADDR(ipaddr,i0,i1,i2,i3)
#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3))
#define ip_addr_copy(dest, src) ip6_addr_copy(dest, src)
#define ip_addr_copy_from_ip6(dest, src) ip6_addr_copy(dest, src)
#define ip_addr_copy_from_ip6_packed(dest, src) ip6_addr_copy_from_packed(dest, src)
#define ip_addr_set(dest, src) ip6_addr_set(dest, src)
#define ip_addr_set_ipaddr(dest, src) ip6_addr_set(dest, src)
#define ip_addr_set_zero(ipaddr) ip6_addr_set_zero(ipaddr)
#define ip_addr_set_zero_ip6(ipaddr) ip6_addr_set_zero(ipaddr)
#define ip_addr_set_any(is_ipv6, ipaddr) ip6_addr_set_any(ipaddr)
#define ip_addr_set_loopback(is_ipv6, ipaddr) ip6_addr_set_loopback(ipaddr)
#define ip_addr_set_hton(dest, src) ip6_addr_set_hton(dest, src)
#define ip_addr_get_network(target, host, mask) ip6_addr_set_zero(target)
#define ip_addr_netcmp(addr1, addr2, mask) 0
#define ip_addr_cmp(addr1, addr2) ip6_addr_cmp(addr1, addr2)
#define ip_addr_cmp_zoneless(addr1, addr2) ip6_addr_cmp_zoneless(addr1, addr2)
#define ip_addr_isany(ipaddr) ip6_addr_isany(ipaddr)
#define ip_addr_isany_val(ipaddr) ip6_addr_isany_val(ipaddr)
#define ip_addr_isloopback(ipaddr) ip6_addr_isloopback(ipaddr)
#define ip_addr_islinklocal(ipaddr) ip6_addr_islinklocal(ipaddr)
#define ip_addr_isbroadcast(addr, netif) 0
#define ip_addr_ismulticast(ipaddr) ip6_addr_ismulticast(ipaddr)
#define ip_addr_debug_print(debug, ipaddr) ip6_addr_debug_print(debug, ipaddr)
#define ip_addr_debug_print_val(debug, ipaddr) ip6_addr_debug_print_val(debug, ipaddr)
#define ipaddr_ntoa(ipaddr) ip6addr_ntoa(ipaddr)
#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip6addr_ntoa_r(ipaddr, buf, buflen)
#define ipaddr_aton(cp, addr) ip6addr_aton(cp, addr)
#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX
#define IP46_ADDR_ANY(type) (IP6_ADDR_ANY)
#endif /* LWIP_IPV4 */
#endif /* LWIP_IPV4 && LWIP_IPV6 */
#if LWIP_IPV4
extern const ip_addr_t ip_addr_any;
extern const ip_addr_t ip_addr_broadcast;
/**
* @ingroup ip4addr
* Can be used as a fixed/const ip_addr_t
* for the IP wildcard.
* Defined to @ref IP4_ADDR_ANY when IPv4 is enabled.
* Defined to @ref IP6_ADDR_ANY in IPv6 only systems.
* Use this if you can handle IPv4 _AND_ IPv6 addresses.
* Use @ref IP4_ADDR_ANY or @ref IP6_ADDR_ANY when the IP
* type matters.
*/
#define IP_ADDR_ANY IP4_ADDR_ANY
/**
* @ingroup ip4addr
* Can be used as a fixed/const ip_addr_t
* for the IPv4 wildcard and the broadcast address
*/
#define IP4_ADDR_ANY (&ip_addr_any)
/**
* @ingroup ip4addr
* Can be used as a fixed/const ip4_addr_t
* for the wildcard and the broadcast address
*/
#define IP4_ADDR_ANY4 (ip_2_ip4(&ip_addr_any))
/** @ingroup ip4addr */
#define IP_ADDR_BROADCAST (&ip_addr_broadcast)
/** @ingroup ip4addr */
#define IP4_ADDR_BROADCAST (ip_2_ip4(&ip_addr_broadcast))
#endif /* LWIP_IPV4*/
#if LWIP_IPV6
extern const ip_addr_t ip6_addr_any;
/**
* @ingroup ip6addr
* IP6_ADDR_ANY can be used as a fixed ip_addr_t
* for the IPv6 wildcard address
*/
#define IP6_ADDR_ANY (&ip6_addr_any)
/**
* @ingroup ip6addr
* IP6_ADDR_ANY6 can be used as a fixed ip6_addr_t
* for the IPv6 wildcard address
*/
#define IP6_ADDR_ANY6 (ip_2_ip6(&ip6_addr_any))
#if !LWIP_IPV4
/** IPv6-only configurations */
#define IP_ADDR_ANY IP6_ADDR_ANY
#endif /* !LWIP_IPV4 */
#endif
#if LWIP_IPV4 && LWIP_IPV6
/** @ingroup ipaddr */
#define IP_ANY_TYPE (&ip_addr_any_type)
#else
#define IP_ANY_TYPE IP_ADDR_ANY
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_IP_ADDR_H */

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/**
* @file lwip_napt.h
* public API of ip4_napt
*
* @see ip4_napt.c
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* original reassembly code by Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_NAPT_H__
#define __LWIP_NAPT_H__
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#if ESP_LWIP
#if IP_FORWARD
#if IP_NAPT
/* Default size of the tables used for NAPT */
#ifndef IP_NAPT_MAX
#define IP_NAPT_MAX 512
#endif
#ifndef IP_PORTMAP_MAX
#define IP_PORTMAP_MAX 32
#endif
/* Timeouts in sec for the various protocol types */
#define IP_NAPT_TIMEOUT_MS_TCP (30*60*1000)
#define IP_NAPT_TIMEOUT_MS_TCP_DISCON (20*1000)
#define IP_NAPT_TIMEOUT_MS_UDP (2*1000)
#define IP_NAPT_TIMEOUT_MS_ICMP (2*1000)
#define IP_NAPT_PORT_RANGE_START 49152
#define IP_NAPT_PORT_RANGE_END 61439
/**
* Enable/Disable NAPT for a specified interface.
*
* @param addr ip address of the interface
* @param enable non-zero to enable NAPT, or 0 to disable.
*/
void
ip_napt_enable(u32_t addr, int enable);
/**
* Enable/Disable NAPT for a specified interface.
*
* @param netif number of the interface
* @param enable non-zero to enable NAPT, or 0 to disable.
*/
void
ip_napt_enable_no(u8_t number, int enable);
/**
* Register port mapping on the external interface to internal interface.
* When the same port mapping is registered again, the old mapping is overwritten.
* In this implementation, only 1 unique port mapping can be defined for each target address/port.
*
* @param proto target protocol
* @param maddr ip address of the external interface
* @param mport mapped port on the external interface, in host byte order.
* @param daddr destination ip address
* @param dport destination port, in host byte order.
*/
u8_t
ip_portmap_add(u8_t proto, u32_t maddr, u16_t mport, u32_t daddr, u16_t dport);
/**
* Unregister port mapping on the external interface to internal interface.
*
* @param proto target protocol
* @param maddr ip address of the external interface
*/
u8_t
ip_portmap_remove(u8_t proto, u16_t mport);
#endif /* IP_NAPT */
#endif /* IP_FORWARD */
#endif /* ESP_LWIP */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_NAPT_H__ */

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/**
* @file
* Heap API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_MEM_H
#define LWIP_HDR_MEM_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#if MEM_LIBC_MALLOC
#include "lwip/arch.h"
typedef size_t mem_size_t;
#define MEM_SIZE_F SZT_F
#elif MEM_USE_POOLS
typedef u16_t mem_size_t;
#define MEM_SIZE_F U16_F
#else
/* MEM_SIZE would have to be aligned, but using 64000 here instead of
* 65535 leaves some room for alignment...
*/
#if MEM_SIZE > 64000L
typedef u32_t mem_size_t;
#define MEM_SIZE_F U32_F
#else
typedef u16_t mem_size_t;
#define MEM_SIZE_F U16_F
#endif /* MEM_SIZE > 64000 */
#endif
void mem_init(void);
void *mem_trim(void *mem, mem_size_t size);
void *mem_malloc(mem_size_t size);
void *mem_calloc(mem_size_t count, mem_size_t size);
void mem_free(void *mem);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_MEM_H */

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/**
* @file
* Memory pool API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_MEMP_H
#define LWIP_HDR_MEMP_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/* run once with empty definition to handle all custom includes in lwippools.h */
#define LWIP_MEMPOOL(name,num,size,desc)
#include "lwip/priv/memp_std.h"
/** Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
typedef enum {
#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name,
#include "lwip/priv/memp_std.h"
MEMP_MAX
} memp_t;
#include "lwip/priv/memp_priv.h"
#include "lwip/stats.h"
extern const struct memp_desc* const memp_pools[MEMP_MAX];
/**
* @ingroup mempool
* Declare prototype for private memory pool if it is used in multiple files
*/
#define LWIP_MEMPOOL_PROTOTYPE(name) extern const struct memp_desc memp_ ## name
#if MEMP_MEM_MALLOC
#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \
LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \
const struct memp_desc memp_ ## name = { \
DECLARE_LWIP_MEMPOOL_DESC(desc) \
LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \
LWIP_MEM_ALIGN_SIZE(size) \
};
#else /* MEMP_MEM_MALLOC */
/**
* @ingroup mempool
* Declare a private memory pool
* Private mempools example:
* .h: only when pool is used in multiple .c files: LWIP_MEMPOOL_PROTOTYPE(my_private_pool);
* .c:
* - in global variables section: LWIP_MEMPOOL_DECLARE(my_private_pool, 10, sizeof(foo), "Some description")
* - call ONCE before using pool (e.g. in some init() function): LWIP_MEMPOOL_INIT(my_private_pool);
* - allocate: void* my_new_mem = LWIP_MEMPOOL_ALLOC(my_private_pool);
* - free: LWIP_MEMPOOL_FREE(my_private_pool, my_new_mem);
*
* To relocate a pool, declare it as extern in cc.h. Example for GCC:
* extern u8_t \_\_attribute\_\_((section(".onchip_mem"))) memp_memory_my_private_pool_base[];
*/
#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \
LWIP_DECLARE_MEMORY_ALIGNED(memp_memory_ ## name ## _base, ((num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size)))); \
\
LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \
\
static struct memp *memp_tab_ ## name; \
\
const struct memp_desc memp_ ## name = { \
DECLARE_LWIP_MEMPOOL_DESC(desc) \
LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \
LWIP_MEM_ALIGN_SIZE(size), \
(num), \
memp_memory_ ## name ## _base, \
&memp_tab_ ## name \
};
#endif /* MEMP_MEM_MALLOC */
/**
* @ingroup mempool
* Initialize a private memory pool
*/
#define LWIP_MEMPOOL_INIT(name) memp_init_pool(&memp_ ## name)
/**
* @ingroup mempool
* Allocate from a private memory pool
*/
#define LWIP_MEMPOOL_ALLOC(name) memp_malloc_pool(&memp_ ## name)
/**
* @ingroup mempool
* Free element from a private memory pool
*/
#define LWIP_MEMPOOL_FREE(name, x) memp_free_pool(&memp_ ## name, (x))
#if MEM_USE_POOLS
/** This structure is used to save the pool one element came from.
* This has to be defined here as it is required for pool size calculation. */
struct memp_malloc_helper
{
memp_t poolnr;
#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS)
u16_t size;
#endif /* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */
};
#endif /* MEM_USE_POOLS */
void memp_init(void);
#if MEMP_OVERFLOW_CHECK
void *memp_malloc_fn(memp_t type, const char* file, const int line);
#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
#else
void *memp_malloc(memp_t type);
#endif
void memp_free(memp_t type, void *mem);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_MEMP_H */

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/**
* @file
*
* Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710.
* No support for MLDv2.
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_MLD6_H
#define LWIP_HDR_MLD6_H
#include "lwip/opt.h"
#if LWIP_IPV6_MLD && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** MLD group */
struct mld_group {
/** next link */
struct mld_group *next;
/** multicast address */
ip6_addr_t group_address;
/** signifies we were the last person to report */
u8_t last_reporter_flag;
/** current state of the group */
u8_t group_state;
/** timer for reporting */
u16_t timer;
/** counter of simultaneous uses */
u8_t use;
};
#define MLD6_TMR_INTERVAL 100 /* Milliseconds */
err_t mld6_stop(struct netif *netif);
void mld6_report_groups(struct netif *netif);
void mld6_tmr(void);
struct mld_group *mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr);
void mld6_input(struct pbuf *p, struct netif *inp);
err_t mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr);
err_t mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr);
err_t mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr);
err_t mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr);
/** @ingroup mld6
* Get list head of MLD6 groups for netif.
* Note: The allnodes group IP is NOT in the list, since it must always
* be received for correct IPv6 operation.
* @see @ref netif_set_mld_mac_filter()
*/
#define netif_mld6_data(netif) ((struct mld_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6_MLD && LWIP_IPV6 */
#endif /* LWIP_HDR_MLD6_H */

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/**
* @file
*
* Neighbor discovery and stateless address autoconfiguration for IPv6.
* Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
* (Address autoconfiguration).
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_ND6_H
#define LWIP_HDR_ND6_H
#include "lwip/opt.h"
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip6_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/** 1 second period */
#define ND6_TMR_INTERVAL 1000
/** Router solicitations are sent in 4 second intervals (see RFC 4861, ch. 6.3.7) */
#ifndef ND6_RTR_SOLICITATION_INTERVAL
#define ND6_RTR_SOLICITATION_INTERVAL 4000
#endif
struct pbuf;
struct netif;
void nd6_tmr(void);
void nd6_input(struct pbuf *p, struct netif *inp);
void nd6_clear_destination_cache(void);
struct netif *nd6_find_route(const ip6_addr_t *ip6addr);
err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp);
u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif);
#if LWIP_ND6_TCP_REACHABILITY_HINTS
void nd6_reachability_hint(const ip6_addr_t *ip6addr);
#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
void nd6_cleanup_netif(struct netif *netif);
#if LWIP_IPV6_MLD
void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state);
#endif /* LWIP_IPV6_MLD */
void nd6_restart_netif(struct netif *netif);
#if ESP_IPV6
/** set nd6 callback when ipv6 addr state pref*/
void nd6_set_cb(struct netif *netif, void (*cb)(struct netif *netif, u8_t ip_index));
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 */
#endif /* LWIP_HDR_ND6_H */

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/**
* @file
* netbuf API (for netconn API)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_NETBUF_H
#define LWIP_HDR_NETBUF_H
#include "lwip/opt.h"
#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
/* Note: Netconn API is always available when sockets are enabled -
* sockets are implemented on top of them */
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/ip6_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/** This netbuf has dest-addr/port set */
#define NETBUF_FLAG_DESTADDR 0x01
/** This netbuf includes a checksum */
#define NETBUF_FLAG_CHKSUM 0x02
/** "Network buffer" - contains data and addressing info */
struct netbuf {
struct pbuf *p, *ptr;
ip_addr_t addr;
u16_t port;
#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY
u8_t flags;
u16_t toport_chksum;
#if LWIP_NETBUF_RECVINFO
ip_addr_t toaddr;
#endif /* LWIP_NETBUF_RECVINFO */
#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */
};
/* Network buffer functions: */
struct netbuf * netbuf_new (void);
void netbuf_delete (struct netbuf *buf);
void * netbuf_alloc (struct netbuf *buf, u16_t size);
void netbuf_free (struct netbuf *buf);
err_t netbuf_ref (struct netbuf *buf,
const void *dataptr, u16_t size);
void netbuf_chain (struct netbuf *head, struct netbuf *tail);
err_t netbuf_data (struct netbuf *buf,
void **dataptr, u16_t *len);
s8_t netbuf_next (struct netbuf *buf);
void netbuf_first (struct netbuf *buf);
#define netbuf_copy_partial(buf, dataptr, len, offset) \
pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))
#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)
#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)
#define netbuf_len(buf) ((buf)->p->tot_len)
#define netbuf_fromaddr(buf) (&((buf)->addr))
#define netbuf_set_fromaddr(buf, fromaddr) ip_addr_set(&((buf)->addr), fromaddr)
#define netbuf_fromport(buf) ((buf)->port)
#if LWIP_NETBUF_RECVINFO
#define netbuf_destaddr(buf) (&((buf)->toaddr))
#define netbuf_set_destaddr(buf, destaddr) ip_addr_set(&((buf)->toaddr), destaddr)
#if LWIP_CHECKSUM_ON_COPY
#define netbuf_destport(buf) (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0)
#else /* LWIP_CHECKSUM_ON_COPY */
#define netbuf_destport(buf) ((buf)->toport_chksum)
#endif /* LWIP_CHECKSUM_ON_COPY */
#endif /* LWIP_NETBUF_RECVINFO */
#if LWIP_CHECKSUM_ON_COPY
#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \
(buf)->toport_chksum = chksum; } while(0)
#endif /* LWIP_CHECKSUM_ON_COPY */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETCONN || LWIP_SOCKET */
#endif /* LWIP_HDR_NETBUF_H */

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/**
* @file
* NETDB API (sockets)
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt
*
*/
#ifndef LWIP_HDR_NETDB_H
#define LWIP_HDR_NETDB_H
#include "lwip/opt.h"
#if LWIP_DNS && LWIP_SOCKET
#include "lwip/arch.h"
#include "lwip/inet.h"
#include "lwip/sockets.h"
#ifdef __cplusplus
extern "C" {
#endif
/* some rarely used options */
#ifndef LWIP_DNS_API_DECLARE_H_ERRNO
#define LWIP_DNS_API_DECLARE_H_ERRNO 1
#endif
#ifndef LWIP_DNS_API_DEFINE_ERRORS
#define LWIP_DNS_API_DEFINE_ERRORS 1
#endif
#ifndef LWIP_DNS_API_DEFINE_FLAGS
#define LWIP_DNS_API_DEFINE_FLAGS 1
#endif
#ifndef LWIP_DNS_API_DECLARE_STRUCTS
#define LWIP_DNS_API_DECLARE_STRUCTS 1
#endif
#if LWIP_DNS_API_DEFINE_ERRORS
/** Errors used by the DNS API functions, h_errno can be one of them */
#define EAI_NONAME 200
#define EAI_SERVICE 201
#define EAI_FAIL 202
#define EAI_MEMORY 203
#define EAI_FAMILY 204
#define HOST_NOT_FOUND 210
#define NO_DATA 211
#define NO_RECOVERY 212
#define TRY_AGAIN 213
#endif /* LWIP_DNS_API_DEFINE_ERRORS */
#if LWIP_DNS_API_DEFINE_FLAGS
/* input flags for struct addrinfo */
#define AI_PASSIVE 0x01
#define AI_CANONNAME 0x02
#define AI_NUMERICHOST 0x04
#define AI_NUMERICSERV 0x08
#define AI_V4MAPPED 0x10
#define AI_ALL 0x20
#define AI_ADDRCONFIG 0x40
#endif /* LWIP_DNS_API_DEFINE_FLAGS */
#if LWIP_DNS_API_DECLARE_STRUCTS
struct hostent {
char *h_name; /* Official name of the host. */
char **h_aliases; /* A pointer to an array of pointers to alternative host names,
terminated by a null pointer. */
int h_addrtype; /* Address type. */
int h_length; /* The length, in bytes, of the address. */
char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
network byte order) for the host, terminated by a null pointer. */
#define h_addr h_addr_list[0] /* for backward compatibility */
};
struct addrinfo {
int ai_flags; /* Input flags. */
int ai_family; /* Address family of socket. */
int ai_socktype; /* Socket type. */
int ai_protocol; /* Protocol of socket. */
socklen_t ai_addrlen; /* Length of socket address. */
struct sockaddr *ai_addr; /* Socket address of socket. */
char *ai_canonname; /* Canonical name of service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
#endif /* LWIP_DNS_API_DECLARE_STRUCTS */
#define NETDB_ELEM_SIZE (sizeof(struct addrinfo) + sizeof(struct sockaddr_storage) + DNS_MAX_NAME_LENGTH + 1)
#if LWIP_DNS_API_DECLARE_H_ERRNO
/* application accessible error code set by the DNS API functions */
extern int h_errno;
#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
struct hostent *lwip_gethostbyname(const char *name);
int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
size_t buflen, struct hostent **result, int *h_errnop);
void lwip_freeaddrinfo(struct addrinfo *ai);
int lwip_getaddrinfo(const char *nodename,
const char *servname,
const struct addrinfo *hints,
struct addrinfo **res);
#if LWIP_COMPAT_SOCKETS
#if ESP_SOCKET
#if LWIP_COMPAT_SOCKET_ADDR == 1
/* Some libraries have problems with inet_... being macros, so please use this define
to declare normal functions */
static inline int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop)
{ return lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop); }
static inline struct hostent *gethostbyname(const char *name)
{ return lwip_gethostbyname(name); }
static inline void freeaddrinfo(struct addrinfo *ai)
{ lwip_freeaddrinfo(ai); }
static inline int getaddrinfo(const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
{ return lwip_getaddrinfo(nodename, servname, hints, res); }
#else
/* By default fall back to original inet_... macros */
/** @ingroup netdbapi */
#define gethostbyname(name) lwip_gethostbyname(name)
/** @ingroup netdbapi */
#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
/** @ingroup netdbapi */
#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
/** @ingroup netdbapi */
#define getaddrinfo(nodname, servname, hints, res) \
lwip_getaddrinfo(nodname, servname, hints, res)
#endif /* LWIP_COMPAT_SOCKET_ADDR == 1 */
#else /* ESP_SOCKET */
/** @ingroup netdbapi */
#define gethostbyname(name) lwip_gethostbyname(name)
/** @ingroup netdbapi */
#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
/** @ingroup netdbapi */
#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
/** @ingroup netdbapi */
#define getaddrinfo(nodname, servname, hints, res) \
lwip_getaddrinfo(nodname, servname, hints, res)
#endif /* ESP_SOCKET */
#endif /* LWIP_COMPAT_SOCKETS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DNS && LWIP_SOCKET */
#endif /* LWIP_HDR_NETDB_H */

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/**
* @file
* netif API (to be used from TCPIP thread)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_NETIF_H
#define LWIP_HDR_NETIF_H
#include "lwip/opt.h"
#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF)
#include "lwip/err.h"
#include "lwip/ip_addr.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/stats.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Throughout this file, IP addresses are expected to be in
* the same byte order as in IP_PCB. */
/** Must be the maximum of all used hardware address lengths
across all types of interfaces in use.
This does not have to be changed, normally. */
#ifndef NETIF_MAX_HWADDR_LEN
#define NETIF_MAX_HWADDR_LEN 6U
#endif
/** The size of a fully constructed netif name which the
* netif can be identified by in APIs. Composed of
* 2 chars, 3 (max) digits, and 1 \0
*/
#define NETIF_NAMESIZE 6
/**
* @defgroup netif_flags Flags
* @ingroup netif
* @{
*/
/** Whether the network interface is 'up'. This is
* a software flag used to control whether this network
* interface is enabled and processes traffic.
* It must be set by the startup code before this netif can be used
* (also for dhcp/autoip).
*/
#define NETIF_FLAG_UP 0x01U
/** If set, the netif has broadcast capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_BROADCAST 0x02U
/** If set, the interface has an active link
* (set by the network interface driver).
* Either set by the netif driver in its init function (if the link
* is up at that time) or at a later point once the link comes up
* (if link detection is supported by the hardware). */
#define NETIF_FLAG_LINK_UP 0x04U
/** If set, the netif is an ethernet device using ARP.
* Set by the netif driver in its init function.
* Used to check input packet types and use of DHCP. */
#define NETIF_FLAG_ETHARP 0x08U
/** If set, the netif is an ethernet device. It might not use
* ARP or TCP/IP if it is used for PPPoE only.
*/
#define NETIF_FLAG_ETHERNET 0x10U
/** If set, the netif has IGMP capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_IGMP 0x20U
/** If set, the netif has MLD6 capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_MLD6 0x40U
#if ESP_GRATUITOUS_ARP
/** If set, the netif will send gratuitous ARP periodically */
#define NETIF_FLAG_GARP 0x80U
#endif
/**
* @}
*/
enum lwip_internal_netif_client_data_index
{
#if LWIP_IPV4
#if LWIP_DHCP
LWIP_NETIF_CLIENT_DATA_INDEX_DHCP,
#endif
#if LWIP_AUTOIP
LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP,
#endif
#if LWIP_IGMP
LWIP_NETIF_CLIENT_DATA_INDEX_IGMP,
#endif
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
#if LWIP_IPV6_DHCP6
LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6,
#endif
#if LWIP_IPV6_MLD
LWIP_NETIF_CLIENT_DATA_INDEX_MLD6,
#endif
#endif /* LWIP_IPV6 */
LWIP_NETIF_CLIENT_DATA_INDEX_MAX
};
#if LWIP_CHECKSUM_CTRL_PER_NETIF
#define NETIF_CHECKSUM_GEN_IP 0x0001
#define NETIF_CHECKSUM_GEN_UDP 0x0002
#define NETIF_CHECKSUM_GEN_TCP 0x0004
#define NETIF_CHECKSUM_GEN_ICMP 0x0008
#define NETIF_CHECKSUM_GEN_ICMP6 0x0010
#define NETIF_CHECKSUM_CHECK_IP 0x0100
#define NETIF_CHECKSUM_CHECK_UDP 0x0200
#define NETIF_CHECKSUM_CHECK_TCP 0x0400
#define NETIF_CHECKSUM_CHECK_ICMP 0x0800
#define NETIF_CHECKSUM_CHECK_ICMP6 0x1000
#define NETIF_CHECKSUM_ENABLE_ALL 0xFFFF
#define NETIF_CHECKSUM_DISABLE_ALL 0x0000
#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */
struct netif;
/** MAC Filter Actions, these are passed to a netif's igmp_mac_filter or
* mld_mac_filter callback function. */
enum netif_mac_filter_action {
/** Delete a filter entry */
NETIF_DEL_MAC_FILTER = 0,
/** Add a filter entry */
NETIF_ADD_MAC_FILTER = 1
};
/** Function prototype for netif init functions. Set up flags and output/linkoutput
* callback functions in this function.
*
* @param netif The netif to initialize
*/
typedef err_t (*netif_init_fn)(struct netif *netif);
/** Function prototype for netif->input functions. This function is saved as 'input'
* callback function in the netif struct. Call it when a packet has been received.
*
* @param p The received packet, copied into a pbuf
* @param inp The netif which received the packet
* @return ERR_OK if the packet was handled
* != ERR_OK is the packet was NOT handled, in this case, the caller has
* to free the pbuf
*/
typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp);
#if LWIP_IPV4
/** Function prototype for netif->output functions. Called by lwIP when a packet
* shall be sent. For ethernet netif, set this to 'etharp_output' and set
* 'linkoutput'.
*
* @param netif The netif which shall send a packet
* @param p The packet to send (p->payload points to IP header)
* @param ipaddr The IP address to which the packet shall be sent
*/
typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p,
const ip4_addr_t *ipaddr);
#endif /* LWIP_IPV4*/
#if LWIP_IPV6
/** Function prototype for netif->output_ip6 functions. Called by lwIP when a packet
* shall be sent. For ethernet netif, set this to 'ethip6_output' and set
* 'linkoutput'.
*
* @param netif The netif which shall send a packet
* @param p The packet to send (p->payload points to IP header)
* @param ipaddr The IPv6 address to which the packet shall be sent
*/
typedef err_t (*netif_output_ip6_fn)(struct netif *netif, struct pbuf *p,
const ip6_addr_t *ipaddr);
#endif /* LWIP_IPV6 */
/** Function prototype for netif->linkoutput functions. Only used for ethernet
* netifs. This function is called by ARP when a packet shall be sent.
*
* @param netif The netif which shall send a packet
* @param p The packet to send (raw ethernet packet)
*/
typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p);
/** Function prototype for netif status- or link-callback functions. */
typedef void (*netif_status_callback_fn)(struct netif *netif);
#if LWIP_IPV4 && LWIP_IGMP
/** Function prototype for netif igmp_mac_filter functions */
typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif,
const ip4_addr_t *group, enum netif_mac_filter_action action);
#endif /* LWIP_IPV4 && LWIP_IGMP */
#if LWIP_IPV6 && LWIP_IPV6_MLD
/** Function prototype for netif mld_mac_filter functions */
typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif,
const ip6_addr_t *group, enum netif_mac_filter_action action);
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
#if LWIP_DHCP || LWIP_AUTOIP || LWIP_IGMP || LWIP_IPV6_MLD || LWIP_IPV6_DHCP6 || (LWIP_NUM_NETIF_CLIENT_DATA > 0)
#if LWIP_NUM_NETIF_CLIENT_DATA > 0
u8_t netif_alloc_client_data_id(void);
#endif
/** @ingroup netif_cd
* Set client data. Obtain ID from netif_alloc_client_data_id().
*/
#define netif_set_client_data(netif, id, data) netif_get_client_data(netif, id) = (data)
/** @ingroup netif_cd
* Get client data. Obtain ID from netif_alloc_client_data_id().
*/
#define netif_get_client_data(netif, id) (netif)->client_data[(id)]
#endif
#if (LWIP_IPV4 && LWIP_ARP && (ARP_TABLE_SIZE > 0x7f)) || (LWIP_IPV6 && (LWIP_ND6_NUM_DESTINATIONS > 0x7f))
typedef u16_t netif_addr_idx_t;
#define NETIF_ADDR_IDX_MAX 0x7FFF
#else
typedef u8_t netif_addr_idx_t;
#define NETIF_ADDR_IDX_MAX 0x7F
#endif
#if LWIP_NETIF_HWADDRHINT
#define LWIP_NETIF_USE_HINTS 1
struct netif_hint {
netif_addr_idx_t addr_hint;
};
#else /* LWIP_NETIF_HWADDRHINT */
#define LWIP_NETIF_USE_HINTS 0
#endif /* LWIP_NETIF_HWADDRHINT */
#if ESP_DHCP
/*add DHCP event processing by LiuHan*/
typedef void (*dhcp_event_fn)(void);
#endif
/** Generic data structure used for all lwIP network interfaces.
* The following fields should be filled in by the initialization
* function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
struct netif {
#if !LWIP_SINGLE_NETIF
/** pointer to next in linked list */
struct netif *next;
#endif
#if LWIP_IPV4
/** IP address configuration in network byte order */
ip_addr_t ip_addr;
ip_addr_t netmask;
ip_addr_t gw;
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
/** Array of IPv6 addresses for this netif. */
ip_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES];
/** The state of each IPv6 address (Tentative, Preferred, etc).
* @see ip6_addr.h */
u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES];
#if LWIP_IPV6_ADDRESS_LIFETIMES
/** Remaining valid and preferred lifetime of each IPv6 address, in seconds.
* For valid lifetimes, the special value of IP6_ADDR_LIFE_STATIC (0)
* indicates the address is static and has no lifetimes. */
u32_t ip6_addr_valid_life[LWIP_IPV6_NUM_ADDRESSES];
u32_t ip6_addr_pref_life[LWIP_IPV6_NUM_ADDRESSES];
#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */
#if ESP_LWIP
void (*ipv6_addr_cb)(struct netif* netif, u8_t ip_idex); /* callback for ipv6 addr states changed */
#endif
#endif /* LWIP_IPV6 */
/** This function is called by the network device driver
* to pass a packet up the TCP/IP stack. */
netif_input_fn input;
#if LWIP_IPV4
/** This function is called by the IP module when it wants
* to send a packet on the interface. This function typically
* first resolves the hardware address, then sends the packet.
* For ethernet physical layer, this is usually etharp_output() */
netif_output_fn output;
#endif /* LWIP_IPV4 */
/** This function is called by ethernet_output() when it wants
* to send a packet on the interface. This function outputs
* the pbuf as-is on the link medium. */
netif_linkoutput_fn linkoutput;
#if LWIP_IPV6
/** This function is called by the IPv6 module when it wants
* to send a packet on the interface. This function typically
* first resolves the hardware address, then sends the packet.
* For ethernet physical layer, this is usually ethip6_output() */
netif_output_ip6_fn output_ip6;
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
/** This function is called when the netif state is set to up or down
*/
netif_status_callback_fn status_callback;
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
/** This function is called when the netif link is set to up or down
*/
netif_status_callback_fn link_callback;
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if LWIP_NETIF_REMOVE_CALLBACK
/** This function is called when the netif has been removed */
netif_status_callback_fn remove_callback;
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
/** This field can be set by the device driver and could point
* to state information for the device. */
void *state;
#ifdef netif_get_client_data
void* client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX + LWIP_NUM_NETIF_CLIENT_DATA];
#endif
#if ESP_DHCP
struct udp_pcb *dhcps_pcb;
dhcp_event_fn dhcp_event;
#endif
#if LWIP_NETIF_HOSTNAME
/* the hostname for this netif, NULL is a valid value */
const char* hostname;
#endif /* LWIP_NETIF_HOSTNAME */
#if LWIP_CHECKSUM_CTRL_PER_NETIF
u16_t chksum_flags;
#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/
/** maximum transfer unit (in bytes) */
u16_t mtu;
#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES
/** maximum transfer unit (in bytes), updated by RA */
u16_t mtu6;
#endif /* LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES */
/** link level hardware address of this interface */
u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
/** number of bytes used in hwaddr */
u8_t hwaddr_len;
/** flags (@see @ref netif_flags) */
u8_t flags;
/** descriptive abbreviation */
char name[2];
/** number of this interface. Used for @ref if_api and @ref netifapi_netif,
* as well as for IPv6 zones */
u8_t num;
#if LWIP_IPV6_AUTOCONFIG
/** is this netif enabled for IPv6 autoconfiguration */
u8_t ip6_autoconfig_enabled;
#endif /* LWIP_IPV6_AUTOCONFIG */
#if LWIP_IPV6_SEND_ROUTER_SOLICIT
/** Number of Router Solicitation messages that remain to be sent. */
u8_t rs_count;
#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */
#if MIB2_STATS
/** link type (from "snmp_ifType" enum from snmp_mib2.h) */
u8_t link_type;
/** (estimate) link speed */
u32_t link_speed;
/** timestamp at last change made (up/down) */
u32_t ts;
/** counters */
struct stats_mib2_netif_ctrs mib2_counters;
#endif /* MIB2_STATS */
#if LWIP_IPV4 && LWIP_IGMP
/** This function could be called to add or delete an entry in the multicast
filter table of the ethernet MAC.*/
netif_igmp_mac_filter_fn igmp_mac_filter;
#endif /* LWIP_IPV4 && LWIP_IGMP */
#if LWIP_IPV6 && LWIP_IPV6_MLD
/** This function could be called to add or delete an entry in the IPv6 multicast
filter table of the ethernet MAC. */
netif_mld_mac_filter_fn mld_mac_filter;
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
#if LWIP_NETIF_USE_HINTS
struct netif_hint *hints;
#endif /* LWIP_NETIF_USE_HINTS */
#if ENABLE_LOOPBACK
/* List of packets to be queued for ourselves. */
struct pbuf *loop_first;
struct pbuf *loop_last;
#if LWIP_LOOPBACK_MAX_PBUFS
u16_t loop_cnt_current;
#endif /* LWIP_LOOPBACK_MAX_PBUFS */
#endif /* ENABLE_LOOPBACK */
#if ESP_PBUF
void (*l2_buffer_free_notify)(struct netif *lwip_netif, void *user_buf); /* Allows LWIP to notify driver when a L2-supplied pbuf can be freed */
ip_addr_t last_ip_addr; /* Store last non-zero ip address */
#endif
#if ESP_LWIP
#if LWIP_IPV4 && IP_NAPT
u8_t napt;
#endif
#endif /* ESP_LWIP */
};
#if LWIP_CHECKSUM_CTRL_PER_NETIF
#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \
(netif)->chksum_flags = chksumflags; } while(0)
#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) if (((netif) == NULL) || (((netif)->chksum_flags & (chksumflag)) != 0))
#else /* LWIP_CHECKSUM_CTRL_PER_NETIF */
#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags)
#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag)
#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */
#if LWIP_SINGLE_NETIF
#define NETIF_FOREACH(netif) if (((netif) = netif_default) != NULL)
#else /* LWIP_SINGLE_NETIF */
/** The list of network interfaces. */
extern struct netif *netif_list;
#define NETIF_FOREACH(netif) for ((netif) = netif_list; (netif) != NULL; (netif) = (netif)->next)
#endif /* LWIP_SINGLE_NETIF */
/** The default network interface. */
extern struct netif *netif_default;
void netif_init(void);
struct netif *netif_add_noaddr(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input);
#if LWIP_IPV4
struct netif *netif_add(struct netif *netif,
const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
void *state, netif_init_fn init, netif_input_fn input);
void netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask,
const ip4_addr_t *gw);
#else /* LWIP_IPV4 */
struct netif *netif_add(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input);
#endif /* LWIP_IPV4 */
#if ESP_GRATUITOUS_ARP
void netif_set_garp_flag(struct netif *netif);
#endif
void netif_remove(struct netif * netif);
/* Returns a network interface given its name. The name is of the form
"et0", where the first two letters are the "name" field in the
netif structure, and the digit is in the num field in the same
structure. */
struct netif *netif_find(const char *name);
void netif_set_default(struct netif *netif);
#if LWIP_IPV4
void netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr);
void netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask);
void netif_set_gw(struct netif *netif, const ip4_addr_t *gw);
/** @ingroup netif_ip4 */
#define netif_ip4_addr(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->ip_addr)))
/** @ingroup netif_ip4 */
#define netif_ip4_netmask(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->netmask)))
/** @ingroup netif_ip4 */
#define netif_ip4_gw(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->gw)))
/** @ingroup netif_ip4 */
#define netif_ip_addr4(netif) ((const ip_addr_t*)&((netif)->ip_addr))
/** @ingroup netif_ip4 */
#define netif_ip_netmask4(netif) ((const ip_addr_t*)&((netif)->netmask))
/** @ingroup netif_ip4 */
#define netif_ip_gw4(netif) ((const ip_addr_t*)&((netif)->gw))
#endif /* LWIP_IPV4 */
#define netif_set_flags(netif, set_flags) do { (netif)->flags = (u8_t)((netif)->flags | (set_flags)); } while(0)
#define netif_clear_flags(netif, clr_flags) do { (netif)->flags = (u8_t)((netif)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0)
#define netif_is_flag_set(nefif, flag) (((netif)->flags & (flag)) != 0)
void netif_set_up(struct netif *netif);
void netif_set_down(struct netif *netif);
/** @ingroup netif
* Ask if an interface is up
*/
#define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0)
#if LWIP_NETIF_STATUS_CALLBACK
void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_REMOVE_CALLBACK
void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback);
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
void netif_set_link_up(struct netif *netif);
void netif_set_link_down(struct netif *netif);
/** Ask if a link is up */
#define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0)
#if LWIP_NETIF_LINK_CALLBACK
void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if LWIP_NETIF_HOSTNAME
/** @ingroup netif */
#define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0)
/** @ingroup netif */
#define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL)
#endif /* LWIP_NETIF_HOSTNAME */
#if LWIP_IGMP
/** @ingroup netif */
#define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0)
#define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL)
#endif /* LWIP_IGMP */
#if LWIP_IPV6 && LWIP_IPV6_MLD
/** @ingroup netif */
#define netif_set_mld_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->mld_mac_filter = function; }}while(0)
#define netif_get_mld_mac_filter(netif) (((netif) != NULL) ? ((netif)->mld_mac_filter) : NULL)
#define netif_mld_mac_filter(netif, addr, action) do { if((netif) && (netif)->mld_mac_filter) { (netif)->mld_mac_filter((netif), (addr), (action)); }}while(0)
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
#if ENABLE_LOOPBACK
err_t netif_loop_output(struct netif *netif, struct pbuf *p);
void netif_poll(struct netif *netif);
#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
void netif_poll_all(void);
#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
#endif /* ENABLE_LOOPBACK */
err_t netif_input(struct pbuf *p, struct netif *inp);
#if LWIP_IPV6
/** @ingroup netif_ip6 */
#define netif_ip_addr6(netif, i) ((const ip_addr_t*)(&((netif)->ip6_addr[i])))
/** @ingroup netif_ip6 */
#define netif_ip6_addr(netif, i) ((const ip6_addr_t*)ip_2_ip6(&((netif)->ip6_addr[i])))
void netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6);
void netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3);
#define netif_ip6_addr_state(netif, i) ((netif)->ip6_addr_state[i])
void netif_ip6_addr_set_state(struct netif* netif, s8_t addr_idx, u8_t state);
s8_t netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr);
void netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit);
err_t netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx);
#define netif_set_ip6_autoconfig_enabled(netif, action) do { if(netif) { (netif)->ip6_autoconfig_enabled = (action); }}while(0)
#if LWIP_IPV6_ADDRESS_LIFETIMES
#define netif_ip6_addr_valid_life(netif, i) \
(((netif) != NULL) ? ((netif)->ip6_addr_valid_life[i]) : IP6_ADDR_LIFE_STATIC)
#define netif_ip6_addr_set_valid_life(netif, i, secs) \
do { if (netif != NULL) { (netif)->ip6_addr_valid_life[i] = (secs); }} while (0)
#define netif_ip6_addr_pref_life(netif, i) \
(((netif) != NULL) ? ((netif)->ip6_addr_pref_life[i]) : IP6_ADDR_LIFE_STATIC)
#define netif_ip6_addr_set_pref_life(netif, i, secs) \
do { if (netif != NULL) { (netif)->ip6_addr_pref_life[i] = (secs); }} while (0)
#define netif_ip6_addr_isstatic(netif, i) \
(netif_ip6_addr_valid_life((netif), (i)) == IP6_ADDR_LIFE_STATIC)
#else /* !LWIP_IPV6_ADDRESS_LIFETIMES */
#define netif_ip6_addr_isstatic(netif, i) (1) /* all addresses are static */
#endif /* !LWIP_IPV6_ADDRESS_LIFETIMES */
#if LWIP_ND6_ALLOW_RA_UPDATES
#define netif_mtu6(netif) ((netif)->mtu6)
#else /* LWIP_ND6_ALLOW_RA_UPDATES */
#define netif_mtu6(netif) ((netif)->mtu)
#endif /* LWIP_ND6_ALLOW_RA_UPDATES */
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_USE_HINTS
#define NETIF_SET_HINTS(netif, netifhint) (netif)->hints = (netifhint)
#define NETIF_RESET_HINTS(netif) (netif)->hints = NULL
#else /* LWIP_NETIF_USE_HINTS */
#define NETIF_SET_HINTS(netif, netifhint)
#define NETIF_RESET_HINTS(netif)
#endif /* LWIP_NETIF_USE_HINTS */
u8_t netif_name_to_index(const char *name);
char * netif_index_to_name(u8_t idx, char *name);
struct netif* netif_get_by_index(u8_t idx);
/* Interface indexes always start at 1 per RFC 3493, section 4, num starts at 0 (internal index is 0..254)*/
#define netif_get_index(netif) ((u8_t)((netif)->num + 1))
#define NETIF_NO_INDEX (0)
/**
* @ingroup netif
* Extended netif status callback (NSC) reasons flags.
* May be extended in the future!
*/
typedef u16_t netif_nsc_reason_t;
/* used for initialization only */
#define LWIP_NSC_NONE 0x0000
/** netif was added. arg: NULL. Called AFTER netif was added. */
#define LWIP_NSC_NETIF_ADDED 0x0001
/** netif was removed. arg: NULL. Called BEFORE netif is removed. */
#define LWIP_NSC_NETIF_REMOVED 0x0002
/** link changed */
#define LWIP_NSC_LINK_CHANGED 0x0004
/** netif administrative status changed.\n
* up is called AFTER netif is set up.\n
* down is called BEFORE the netif is actually set down. */
#define LWIP_NSC_STATUS_CHANGED 0x0008
/** IPv4 address has changed */
#define LWIP_NSC_IPV4_ADDRESS_CHANGED 0x0010
/** IPv4 gateway has changed */
#define LWIP_NSC_IPV4_GATEWAY_CHANGED 0x0020
/** IPv4 netmask has changed */
#define LWIP_NSC_IPV4_NETMASK_CHANGED 0x0040
/** called AFTER IPv4 address/gateway/netmask changes have been applied */
#define LWIP_NSC_IPV4_SETTINGS_CHANGED 0x0080
/** IPv6 address was added */
#define LWIP_NSC_IPV6_SET 0x0100
/** IPv6 address state has changed */
#define LWIP_NSC_IPV6_ADDR_STATE_CHANGED 0x0200
/** @ingroup netif
* Argument supplied to netif_ext_callback_fn.
*/
typedef union
{
/** Args to LWIP_NSC_LINK_CHANGED callback */
struct link_changed_s
{
/** 1: up; 0: down */
u8_t state;
} link_changed;
/** Args to LWIP_NSC_STATUS_CHANGED callback */
struct status_changed_s
{
/** 1: up; 0: down */
u8_t state;
} status_changed;
/** Args to LWIP_NSC_IPV4_ADDRESS_CHANGED|LWIP_NSC_IPV4_GATEWAY_CHANGED|LWIP_NSC_IPV4_NETMASK_CHANGED|LWIP_NSC_IPV4_SETTINGS_CHANGED callback */
struct ipv4_changed_s
{
/** Old IPv4 address */
const ip_addr_t* old_address;
const ip_addr_t* old_netmask;
const ip_addr_t* old_gw;
} ipv4_changed;
/** Args to LWIP_NSC_IPV6_SET callback */
struct ipv6_set_s
{
/** Index of changed IPv6 address */
s8_t addr_index;
/** Old IPv6 address */
const ip_addr_t* old_address;
} ipv6_set;
/** Args to LWIP_NSC_IPV6_ADDR_STATE_CHANGED callback */
struct ipv6_addr_state_changed_s
{
/** Index of affected IPv6 address */
s8_t addr_index;
/** Old IPv6 address state */
u8_t old_state;
/** Affected IPv6 address */
const ip_addr_t* address;
} ipv6_addr_state_changed;
} netif_ext_callback_args_t;
/**
* @ingroup netif
* Function used for extended netif status callbacks
* Note: When parsing reason argument, keep in mind that more reasons may be added in the future!
* @param netif netif that is affected by change
* @param reason change reason
* @param args depends on reason, see reason description
*/
typedef void (*netif_ext_callback_fn)(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args);
#if LWIP_NETIF_EXT_STATUS_CALLBACK
struct netif_ext_callback;
typedef struct netif_ext_callback
{
netif_ext_callback_fn callback_fn;
struct netif_ext_callback* next;
} netif_ext_callback_t;
#define NETIF_DECLARE_EXT_CALLBACK(name) static netif_ext_callback_t name;
void netif_add_ext_callback(netif_ext_callback_t* callback, netif_ext_callback_fn fn);
void netif_remove_ext_callback(netif_ext_callback_t* callback);
void netif_invoke_ext_callback(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args);
#else
#define NETIF_DECLARE_EXT_CALLBACK(name)
#define netif_add_ext_callback(callback, fn)
#define netif_remove_ext_callback(callback)
#define netif_invoke_ext_callback(netif, reason, args)
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_NETIF_H */

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/**
* @file
* netif API (to be used from non-TCPIP threads)
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#ifndef LWIP_HDR_NETIFAPI_H
#define LWIP_HDR_NETIFAPI_H
#include "lwip/opt.h"
#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
#include "lwip/sys.h"
#include "lwip/netif.h"
#include "lwip/dhcp.h"
#include "lwip/autoip.h"
#include "lwip/priv/tcpip_priv.h"
#include "lwip/priv/api_msg.h"
#include "lwip/prot/ethernet.h"
#ifdef __cplusplus
extern "C" {
#endif
/* API for application */
#if LWIP_ARP && LWIP_IPV4
/* Used for netfiapi_arp_* APIs */
enum netifapi_arp_entry {
NETIFAPI_ARP_PERM /* Permanent entry */
/* Other entry types can be added here */
};
/** @ingroup netifapi_arp */
err_t netifapi_arp_add(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, enum netifapi_arp_entry type);
/** @ingroup netifapi_arp */
err_t netifapi_arp_remove(const ip4_addr_t *ipaddr, enum netifapi_arp_entry type);
#endif /* LWIP_ARP && LWIP_IPV4 */
err_t netifapi_netif_add(struct netif *netif,
#if LWIP_IPV4
const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
#endif /* LWIP_IPV4 */
void *state, netif_init_fn init, netif_input_fn input);
#if LWIP_IPV4
err_t netifapi_netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr,
const ip4_addr_t *netmask, const ip4_addr_t *gw);
#endif /* LWIP_IPV4*/
err_t netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc,
netifapi_errt_fn errtfunc);
/** @ingroup netifapi_netif */
err_t netifapi_netif_name_to_index(const char *name, u8_t *index);
/** @ingroup netifapi_netif */
err_t netifapi_netif_index_to_name(u8_t index, char *name);
/** @ingroup netifapi_netif
* @see netif_remove()
*/
#define netifapi_netif_remove(n) netifapi_netif_common(n, netif_remove, NULL)
/** @ingroup netifapi_netif
* @see netif_set_up()
*/
#define netifapi_netif_set_up(n) netifapi_netif_common(n, netif_set_up, NULL)
/** @ingroup netifapi_netif
* @see netif_set_down()
*/
#define netifapi_netif_set_down(n) netifapi_netif_common(n, netif_set_down, NULL)
/** @ingroup netifapi_netif
* @see netif_set_default()
*/
#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL)
/** @ingroup netifapi_netif
* @see netif_set_link_up()
*/
#define netifapi_netif_set_link_up(n) netifapi_netif_common(n, netif_set_link_up, NULL)
/** @ingroup netifapi_netif
* @see netif_set_link_down()
*/
#define netifapi_netif_set_link_down(n) netifapi_netif_common(n, netif_set_link_down, NULL)
/**
* @defgroup netifapi_dhcp4 DHCPv4
* @ingroup netifapi
* To be called from non-TCPIP threads
*/
/** @ingroup netifapi_dhcp4
* @see dhcp_start()
*/
#define netifapi_dhcp_start(n) netifapi_netif_common(n, NULL, dhcp_start)
/**
* @ingroup netifapi_dhcp4
* @deprecated Use netifapi_dhcp_release_and_stop() instead.
*/
#define netifapi_dhcp_stop(n) netifapi_netif_common(n, dhcp_stop, NULL)
/** @ingroup netifapi_dhcp4
* @see dhcp_inform()
*/
#define netifapi_dhcp_inform(n) netifapi_netif_common(n, dhcp_inform, NULL)
/** @ingroup netifapi_dhcp4
* @see dhcp_renew()
*/
#define netifapi_dhcp_renew(n) netifapi_netif_common(n, NULL, dhcp_renew)
/**
* @ingroup netifapi_dhcp4
* @deprecated Use netifapi_dhcp_release_and_stop() instead.
*/
#define netifapi_dhcp_release(n) netifapi_netif_common(n, NULL, dhcp_release)
/** @ingroup netifapi_dhcp4
* @see dhcp_release_and_stop()
*/
#define netifapi_dhcp_release_and_stop(n) netifapi_netif_common(n, dhcp_release_and_stop, NULL)
/**
* @defgroup netifapi_autoip AUTOIP
* @ingroup netifapi
* To be called from non-TCPIP threads
*/
/** @ingroup netifapi_autoip
* @see autoip_start()
*/
#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start)
/** @ingroup netifapi_autoip
* @see autoip_stop()
*/
#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop)
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETIF_API */
#endif /* LWIP_HDR_NETIFAPI_H */

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/**
* @file
* pbuf API
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_PBUF_H
#define LWIP_HDR_PBUF_H
#include "lwip/opt.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/** LWIP_SUPPORT_CUSTOM_PBUF==1: Custom pbufs behave much like their pbuf type
* but they are allocated by external code (initialised by calling
* pbuf_alloced_custom()) and when pbuf_free gives up their last reference, they
* are freed by calling pbuf_custom->custom_free_function().
* Currently, the pbuf_custom code is only needed for one specific configuration
* of IP_FRAG, unless required by external driver/application code. */
#ifndef LWIP_SUPPORT_CUSTOM_PBUF
#define LWIP_SUPPORT_CUSTOM_PBUF ((IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG))
#endif
/** @ingroup pbuf
* PBUF_NEEDS_COPY(p): return a boolean value indicating whether the given
* pbuf needs to be copied in order to be kept around beyond the current call
* stack without risking being corrupted. The default setting provides safety:
* it will make a copy iof any pbuf chain that does not consist entirely of
* PBUF_ROM type pbufs. For setups with zero-copy support, it may be redefined
* to evaluate to true in all cases, for example. However, doing so also has an
* effect on the application side: any buffers that are *not* copied must also
* *not* be reused by the application after passing them to lwIP. For example,
* when setting PBUF_NEEDS_COPY to (0), after using udp_send() with a PBUF_RAM
* pbuf, the application must free the pbuf immediately, rather than reusing it
* for other purposes. For more background information on this, see tasks #6735
* and #7896, and bugs #11400 and #49914. */
#ifndef PBUF_NEEDS_COPY
#define PBUF_NEEDS_COPY(p) ((p)->type_internal & PBUF_TYPE_FLAG_DATA_VOLATILE)
#endif /* PBUF_NEEDS_COPY */
/* @todo: We need a mechanism to prevent wasting memory in every pbuf
(TCP vs. UDP, IPv4 vs. IPv6: UDP/IPv4 packets may waste up to 28 bytes) */
#define PBUF_TRANSPORT_HLEN 20
#if LWIP_IPV6
#define PBUF_IP_HLEN 40
#else
#define PBUF_IP_HLEN 20
#endif
/**
* @ingroup pbuf
* Enumeration of pbuf layers
*/
typedef enum {
/** Includes spare room for transport layer header, e.g. UDP header.
* Use this if you intend to pass the pbuf to functions like udp_send().
*/
PBUF_TRANSPORT = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN,
/** Includes spare room for IP header.
* Use this if you intend to pass the pbuf to functions like raw_send().
*/
PBUF_IP = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN,
/** Includes spare room for link layer header (ethernet header).
* Use this if you intend to pass the pbuf to functions like ethernet_output().
* @see PBUF_LINK_HLEN
*/
PBUF_LINK = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN,
/** Includes spare room for additional encapsulation header before ethernet
* headers (e.g. 802.11).
* Use this if you intend to pass the pbuf to functions like netif->linkoutput().
* @see PBUF_LINK_ENCAPSULATION_HLEN
*/
PBUF_RAW_TX = PBUF_LINK_ENCAPSULATION_HLEN,
/** Use this for input packets in a netif driver when calling netif->input()
* in the most common case - ethernet-layer netif driver. */
PBUF_RAW = 0
} pbuf_layer;
/* Base flags for pbuf_type definitions: */
/** Indicates that the payload directly follows the struct pbuf.
* This makes @ref pbuf_header work in both directions. */
#define PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS 0x80
/** Indicates the data stored in this pbuf can change. If this pbuf needs
* to be queued, it must be copied/duplicated. */
#define PBUF_TYPE_FLAG_DATA_VOLATILE 0x40
/** 4 bits are reserved for 16 allocation sources (e.g. heap, pool1, pool2, etc)
* Internally, we use: 0=heap, 1=MEMP_PBUF, 2=MEMP_PBUF_POOL -> 13 types free*/
#define PBUF_TYPE_ALLOC_SRC_MASK 0x0F
/** Indicates this pbuf is used for RX (if not set, indicates use for TX).
* This information can be used to keep some spare RX buffers e.g. for
* receiving TCP ACKs to unblock a connection) */
#define PBUF_ALLOC_FLAG_RX 0x0100
/** Indicates the application needs the pbuf payload to be in one piece */
#define PBUF_ALLOC_FLAG_DATA_CONTIGUOUS 0x0200
#define PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP 0x00
#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF 0x01
#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL 0x02
/** First pbuf allocation type for applications */
#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MIN 0x03
/** Last pbuf allocation type for applications */
#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MAX PBUF_TYPE_ALLOC_SRC_MASK
/**
* @ingroup pbuf
* Enumeration of pbuf types
*/
typedef enum {
/** pbuf data is stored in RAM, used for TX mostly, struct pbuf and its payload
are allocated in one piece of contiguous memory (so the first payload byte
can be calculated from struct pbuf).
pbuf_alloc() allocates PBUF_RAM pbufs as unchained pbufs (although that might
change in future versions).
This should be used for all OUTGOING packets (TX).*/
PBUF_RAM = (PBUF_ALLOC_FLAG_DATA_CONTIGUOUS | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP),
/** pbuf data is stored in ROM, i.e. struct pbuf and its payload are located in
totally different memory areas. Since it points to ROM, payload does not
have to be copied when queued for transmission. */
PBUF_ROM = PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF,
/** pbuf comes from the pbuf pool. Much like PBUF_ROM but payload might change
so it has to be duplicated when queued before transmitting, depending on
who has a 'ref' to it. */
PBUF_REF = (PBUF_TYPE_FLAG_DATA_VOLATILE | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF),
/** pbuf payload refers to RAM. This one comes from a pool and should be used
for RX. Payload can be chained (scatter-gather RX) but like PBUF_RAM, struct
pbuf and its payload are allocated in one piece of contiguous memory (so
the first payload byte can be calculated from struct pbuf).
Don't use this for TX, if the pool becomes empty e.g. because of TCP queuing,
you are unable to receive TCP acks! */
PBUF_POOL = (PBUF_ALLOC_FLAG_RX | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL)
} pbuf_type;
/** indicates this packet's data should be immediately passed to the application */
#define PBUF_FLAG_PUSH 0x01U
/** indicates this is a custom pbuf: pbuf_free calls pbuf_custom->custom_free_function()
when the last reference is released (plus custom PBUF_RAM cannot be trimmed) */
#define PBUF_FLAG_IS_CUSTOM 0x02U
/** indicates this pbuf is UDP multicast to be looped back */
#define PBUF_FLAG_MCASTLOOP 0x04U
/** indicates this pbuf was received as link-level broadcast */
#define PBUF_FLAG_LLBCAST 0x08U
/** indicates this pbuf was received as link-level multicast */
#define PBUF_FLAG_LLMCAST 0x10U
/** indicates this pbuf includes a TCP FIN flag */
#define PBUF_FLAG_TCP_FIN 0x20U
/** Main packet buffer struct */
struct pbuf {
/** next pbuf in singly linked pbuf chain */
struct pbuf *next;
/** pointer to the actual data in the buffer */
void *payload;
/**
* total length of this buffer and all next buffers in chain
* belonging to the same packet.
*
* For non-queue packet chains this is the invariant:
* p->tot_len == p->len + (p->next? p->next->tot_len: 0)
*/
u16_t tot_len;
/** length of this buffer */
u16_t len;
/** a bit field indicating pbuf type and allocation sources
(see PBUF_TYPE_FLAG_*, PBUF_ALLOC_FLAG_* and PBUF_TYPE_ALLOC_SRC_MASK)
*/
u8_t type_internal;
/** misc flags */
u8_t flags;
/**
* the reference count always equals the number of pointers
* that refer to this pbuf. This can be pointers from an application,
* the stack itself, or pbuf->next pointers from a chain.
*/
LWIP_PBUF_REF_T ref;
/** For incoming packets, this contains the input netif's index */
u8_t if_idx;
/** In case the user needs to store data custom data on a pbuf */
LWIP_PBUF_CUSTOM_DATA
#if ESP_PBUF
struct netif *l2_owner;
void *l2_buf;
#endif
};
/** Helper struct for const-correctness only.
* The only meaning of this one is to provide a const payload pointer
* for PBUF_ROM type.
*/
struct pbuf_rom {
/** next pbuf in singly linked pbuf chain */
struct pbuf *next;
/** pointer to the actual data in the buffer */
const void *payload;
};
#if LWIP_SUPPORT_CUSTOM_PBUF
/** Prototype for a function to free a custom pbuf */
typedef void (*pbuf_free_custom_fn)(struct pbuf *p);
/** A custom pbuf: like a pbuf, but following a function pointer to free it. */
struct pbuf_custom {
/** The actual pbuf */
struct pbuf pbuf;
/** This function is called when pbuf_free deallocates this pbuf(_custom) */
pbuf_free_custom_fn custom_free_function;
};
#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
/** Define this to 0 to prevent freeing ooseq pbufs when the PBUF_POOL is empty */
#ifndef PBUF_POOL_FREE_OOSEQ
#define PBUF_POOL_FREE_OOSEQ 1
#endif /* PBUF_POOL_FREE_OOSEQ */
#if LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ
extern volatile u8_t pbuf_free_ooseq_pending;
void pbuf_free_ooseq(void);
/** When not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
at regular intervals from main level to check if ooseq pbufs need to be
freed! */
#define PBUF_CHECK_FREE_OOSEQ() do { if(pbuf_free_ooseq_pending) { \
/* pbuf_alloc() reported PBUF_POOL to be empty -> try to free some \
ooseq queued pbufs now */ \
pbuf_free_ooseq(); }}while(0)
#else /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ */
/* Otherwise declare an empty PBUF_CHECK_FREE_OOSEQ */
#define PBUF_CHECK_FREE_OOSEQ()
#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ*/
/* Initializes the pbuf module. This call is empty for now, but may not be in future. */
#define pbuf_init()
struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type);
struct pbuf *pbuf_alloc_reference(void *payload, u16_t length, pbuf_type type);
#if LWIP_SUPPORT_CUSTOM_PBUF
struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type,
struct pbuf_custom *p, void *payload_mem,
u16_t payload_mem_len);
#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
void pbuf_realloc(struct pbuf *p, u16_t size);
#define pbuf_get_allocsrc(p) ((p)->type_internal & PBUF_TYPE_ALLOC_SRC_MASK)
#define pbuf_match_allocsrc(p, type) (pbuf_get_allocsrc(p) == ((type) & PBUF_TYPE_ALLOC_SRC_MASK))
#define pbuf_match_type(p, type) pbuf_match_allocsrc(p, type)
u8_t pbuf_header(struct pbuf *p, s16_t header_size);
u8_t pbuf_header_force(struct pbuf *p, s16_t header_size);
u8_t pbuf_add_header(struct pbuf *p, size_t header_size_increment);
u8_t pbuf_add_header_force(struct pbuf *p, size_t header_size_increment);
u8_t pbuf_remove_header(struct pbuf *p, size_t header_size);
struct pbuf *pbuf_free_header(struct pbuf *q, u16_t size);
void pbuf_ref(struct pbuf *p);
u8_t pbuf_free(struct pbuf *p);
u16_t pbuf_clen(const struct pbuf *p);
void pbuf_cat(struct pbuf *head, struct pbuf *tail);
void pbuf_chain(struct pbuf *head, struct pbuf *tail);
struct pbuf *pbuf_dechain(struct pbuf *p);
err_t pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from);
u16_t pbuf_copy_partial(const struct pbuf *p, void *dataptr, u16_t len, u16_t offset);
void *pbuf_get_contiguous(const struct pbuf *p, void *buffer, size_t bufsize, u16_t len, u16_t offset);
err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len);
err_t pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset);
struct pbuf *pbuf_skip(struct pbuf* in, u16_t in_offset, u16_t* out_offset);
struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer);
struct pbuf *pbuf_clone(pbuf_layer l, pbuf_type type, struct pbuf *p);
#if LWIP_CHECKSUM_ON_COPY
err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr,
u16_t len, u16_t *chksum);
#endif /* LWIP_CHECKSUM_ON_COPY */
#if LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE
void pbuf_split_64k(struct pbuf *p, struct pbuf **rest);
#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */
u8_t pbuf_get_at(const struct pbuf* p, u16_t offset);
int pbuf_try_get_at(const struct pbuf* p, u16_t offset);
void pbuf_put_at(struct pbuf* p, u16_t offset, u8_t data);
u16_t pbuf_memcmp(const struct pbuf* p, u16_t offset, const void* s2, u16_t n);
u16_t pbuf_memfind(const struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset);
u16_t pbuf_strstr(const struct pbuf* p, const char* substr);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_PBUF_H */

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/**
* @file
* Application layered TCP connection API (to be used from TCPIP thread)\n
* This interface mimics the tcp callback API to the application while preventing
* direct linking (much like virtual functions).
* This way, an application can make use of other application layer protocols
* on top of TCP without knowing the details (e.g. TLS, proxy connection).
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_PRIV_H
#define LWIP_HDR_ALTCP_PRIV_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/altcp.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
struct altcp_pcb *altcp_alloc(void);
void altcp_free(struct altcp_pcb *conn);
/* Function prototypes for application layers */
typedef void (*altcp_set_poll_fn)(struct altcp_pcb *conn, u8_t interval);
typedef void (*altcp_recved_fn)(struct altcp_pcb *conn, u16_t len);
typedef err_t (*altcp_bind_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
typedef err_t (*altcp_connect_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected);
typedef struct altcp_pcb *(*altcp_listen_fn)(struct altcp_pcb *conn, u8_t backlog, err_t *err);
typedef void (*altcp_abort_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_close_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_shutdown_fn)(struct altcp_pcb *conn, int shut_rx, int shut_tx);
typedef err_t (*altcp_write_fn)(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
typedef err_t (*altcp_output_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_mss_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_sndbuf_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_sndqueuelen_fn)(struct altcp_pcb *conn);
typedef void (*altcp_nagle_disable_fn)(struct altcp_pcb *conn);
typedef void (*altcp_nagle_enable_fn)(struct altcp_pcb *conn);
typedef int (*altcp_nagle_disabled_fn)(struct altcp_pcb *conn);
typedef void (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio);
typedef void (*altcp_dealloc_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local);
typedef u16_t (*altcp_get_port_fn)(struct altcp_pcb *conn, int local);
#if LWIP_TCP_KEEPALIVE
typedef void (*altcp_keepalive_disable_fn)(struct altcp_pcb *conn);
typedef void (*altcp_keepalive_enable_fn)(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count);
#endif
#ifdef LWIP_DEBUG
typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn);
#endif
struct altcp_functions {
altcp_set_poll_fn set_poll;
altcp_recved_fn recved;
altcp_bind_fn bind;
altcp_connect_fn connect;
altcp_listen_fn listen;
altcp_abort_fn abort;
altcp_close_fn close;
altcp_shutdown_fn shutdown;
altcp_write_fn write;
altcp_output_fn output;
altcp_mss_fn mss;
altcp_sndbuf_fn sndbuf;
altcp_sndqueuelen_fn sndqueuelen;
altcp_nagle_disable_fn nagle_disable;
altcp_nagle_enable_fn nagle_enable;
altcp_nagle_disabled_fn nagle_disabled;
altcp_setprio_fn setprio;
altcp_dealloc_fn dealloc;
altcp_get_tcp_addrinfo_fn addrinfo;
altcp_get_ip_fn getip;
altcp_get_port_fn getport;
#if LWIP_TCP_KEEPALIVE
altcp_keepalive_disable_fn keepalive_disable;
altcp_keepalive_enable_fn keepalive_enable;
#endif
#ifdef LWIP_DEBUG
altcp_dbg_get_tcp_state_fn dbg_get_tcp_state;
#endif
};
void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval);
void altcp_default_recved(struct altcp_pcb *conn, u16_t len);
err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx);
err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
err_t altcp_default_output(struct altcp_pcb *conn);
u16_t altcp_default_mss(struct altcp_pcb *conn);
u16_t altcp_default_sndbuf(struct altcp_pcb *conn);
u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn);
void altcp_default_nagle_disable(struct altcp_pcb *conn);
void altcp_default_nagle_enable(struct altcp_pcb *conn);
int altcp_default_nagle_disabled(struct altcp_pcb *conn);
void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio);
void altcp_default_dealloc(struct altcp_pcb *conn);
err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local);
u16_t altcp_default_get_port(struct altcp_pcb *conn, int local);
#if LWIP_TCP_KEEPALIVE
void altcp_default_keepalive_disable(struct altcp_pcb *conn);
void altcp_default_keepalive_enable(struct altcp_pcb *conn, u32_t idle, u32_t intvl, u32_t count);
#endif
#ifdef LWIP_DEBUG
enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_PRIV_H */

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/**
* @file
* netconn API lwIP internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_API_MSG_H
#define LWIP_HDR_API_MSG_H
#include "lwip/opt.h"
#include "lwip/arch.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/sys.h"
#include "lwip/igmp.h"
#include "lwip/api.h"
#include "lwip/priv/tcpip_priv.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
/* Note: Netconn API is always available when sockets are enabled -
* sockets are implemented on top of them */
#if LWIP_MPU_COMPATIBLE
#if LWIP_NETCONN_SEM_PER_THREAD
#define API_MSG_M_DEF_SEM(m) *m
#else
#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m)
#endif
#else /* LWIP_MPU_COMPATIBLE */
#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m)
#endif /* LWIP_MPU_COMPATIBLE */
/* For the netconn API, these values are use as a bitmask! */
#define NETCONN_SHUT_RD 1
#define NETCONN_SHUT_WR 2
#define NETCONN_SHUT_RDWR (NETCONN_SHUT_RD | NETCONN_SHUT_WR)
/* IP addresses and port numbers are expected to be in
* the same byte order as in the corresponding pcb.
*/
/** This struct includes everything that is necessary to execute a function
for a netconn in another thread context (mainly used to process netconns
in the tcpip_thread context to be thread safe). */
struct api_msg {
/** The netconn which to process - always needed: it includes the semaphore
which is used to block the application thread until the function finished. */
struct netconn *conn;
/** The return value of the function executed in tcpip_thread. */
err_t err;
/** Depending on the executed function, one of these union members is used */
union {
/** used for lwip_netconn_do_send */
struct netbuf *b;
/** used for lwip_netconn_do_newconn */
struct {
u8_t proto;
} n;
/** used for lwip_netconn_do_bind and lwip_netconn_do_connect */
struct {
API_MSG_M_DEF_C(ip_addr_t, ipaddr);
u16_t port;
u8_t if_idx;
} bc;
/** used for lwip_netconn_do_getaddr */
struct {
ip_addr_t API_MSG_M_DEF(ipaddr);
u16_t API_MSG_M_DEF(port);
u8_t local;
} ad;
/** used for lwip_netconn_do_write */
struct {
/** current vector to write */
const struct netvector *vector;
/** number of unwritten vectors */
u16_t vector_cnt;
/** offset into current vector */
size_t vector_off;
/** total length across vectors */
size_t len;
/** offset into total length/output of bytes written when err == ERR_OK */
size_t offset;
u8_t apiflags;
#if LWIP_SO_SNDTIMEO
u32_t time_started;
#endif /* LWIP_SO_SNDTIMEO */
} w;
/** used for lwip_netconn_do_recv */
struct {
size_t len;
} r;
#if LWIP_TCP
/** used for lwip_netconn_do_close (/shutdown) */
struct {
u8_t shut;
#if LWIP_SO_SNDTIMEO || LWIP_SO_LINGER
u32_t time_started;
#else /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
u8_t polls_left;
#endif /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */
} sd;
#endif /* LWIP_TCP */
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
/** used for lwip_netconn_do_join_leave_group */
struct {
API_MSG_M_DEF_C(ip_addr_t, multiaddr);
API_MSG_M_DEF_C(ip_addr_t, netif_addr);
u8_t if_idx;
enum netconn_igmp join_or_leave;
} jl;
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if TCP_LISTEN_BACKLOG
struct {
u8_t backlog;
} lb;
#endif /* TCP_LISTEN_BACKLOG */
} msg;
#if LWIP_NETCONN_SEM_PER_THREAD
sys_sem_t* op_completed_sem;
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
};
#if LWIP_NETCONN_SEM_PER_THREAD
#define LWIP_API_MSG_SEM(msg) ((msg)->op_completed_sem)
#else /* LWIP_NETCONN_SEM_PER_THREAD */
#define LWIP_API_MSG_SEM(msg) (&(msg)->conn->op_completed)
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
#if LWIP_DNS
/** As lwip_netconn_do_gethostbyname requires more arguments but doesn't require a netconn,
it has its own struct (to avoid struct api_msg getting bigger than necessary).
lwip_netconn_do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg
(see netconn_gethostbyname). */
struct dns_api_msg {
/** Hostname to query or dotted IP address string */
#if LWIP_MPU_COMPATIBLE
char name[DNS_MAX_NAME_LENGTH];
#else /* LWIP_MPU_COMPATIBLE */
const char *name;
#endif /* LWIP_MPU_COMPATIBLE */
/** The resolved address is stored here */
ip_addr_t API_MSG_M_DEF(addr);
#if LWIP_IPV4 && LWIP_IPV6
/** Type of resolve call */
u8_t dns_addrtype;
#endif /* LWIP_IPV4 && LWIP_IPV6 */
/** This semaphore is posted when the name is resolved, the application thread
should wait on it. */
sys_sem_t API_MSG_M_DEF_SEM(sem);
/** Errors are given back here */
err_t API_MSG_M_DEF(err);
};
#endif /* LWIP_DNS */
#if LWIP_NETCONN_SEM_PER_THREAD
#if ESP_THREAD_SAFE
#define LWIP_NETCONN_THREAD_SEM_GET() sys_thread_sem_get()
#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_thread_sem_init()
#define LWIP_NETCONN_THREAD_SEM_FREE() sys_thread_sem_deinit()
#endif
#endif
#if LWIP_NETCONN_FULLDUPLEX
int lwip_netconn_is_deallocated_msg(void *msg);
#endif
int lwip_netconn_is_err_msg(void *msg, err_t *err);
void lwip_netconn_do_newconn (void *m);
void lwip_netconn_do_delconn (void *m);
void lwip_netconn_do_bind (void *m);
void lwip_netconn_do_bind_if (void *m);
void lwip_netconn_do_connect (void *m);
void lwip_netconn_do_disconnect (void *m);
void lwip_netconn_do_listen (void *m);
void lwip_netconn_do_send (void *m);
void lwip_netconn_do_recv (void *m);
#if TCP_LISTEN_BACKLOG
void lwip_netconn_do_accepted (void *m);
#endif /* TCP_LISTEN_BACKLOG */
void lwip_netconn_do_write (void *m);
void lwip_netconn_do_getaddr (void *m);
void lwip_netconn_do_close (void *m);
void lwip_netconn_do_shutdown (void *m);
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
void lwip_netconn_do_join_leave_group(void *m);
void lwip_netconn_do_join_leave_group_netif(void *m);
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS
void lwip_netconn_do_gethostbyname(void *arg);
#endif /* LWIP_DNS */
struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback);
void netconn_free(struct netconn *conn);
#endif /* LWIP_NETCONN || LWIP_SOCKET */
#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
/* netifapi related lwIP internal definitions */
#if LWIP_MPU_COMPATIBLE
#define NETIFAPI_IPADDR_DEF(type, m) type m
#else /* LWIP_MPU_COMPATIBLE */
#define NETIFAPI_IPADDR_DEF(type, m) const type * m
#endif /* LWIP_MPU_COMPATIBLE */
typedef void (*netifapi_void_fn)(struct netif *netif);
typedef err_t (*netifapi_errt_fn)(struct netif *netif);
struct netifapi_msg {
struct tcpip_api_call_data call;
struct netif *netif;
union {
struct {
#if LWIP_IPV4
NETIFAPI_IPADDR_DEF(ip4_addr_t, ipaddr);
NETIFAPI_IPADDR_DEF(ip4_addr_t, netmask);
NETIFAPI_IPADDR_DEF(ip4_addr_t, gw);
#endif /* LWIP_IPV4 */
void *state;
netif_init_fn init;
netif_input_fn input;
} add;
struct {
netifapi_void_fn voidfunc;
netifapi_errt_fn errtfunc;
} common;
struct {
#if LWIP_MPU_COMPATIBLE
char name[NETIF_NAMESIZE];
#else /* LWIP_MPU_COMPATIBLE */
char *name;
#endif /* LWIP_MPU_COMPATIBLE */
u8_t index;
} ifs;
} msg;
};
#endif /* LWIP_NETIF_API */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_API_MSG_H */

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/**
* @file
* lwIP internal memory implementations (do not use in application code)
*/
/*
* Copyright (c) 2018 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_MEM_PRIV_H
#define LWIP_HDR_MEM_PRIV_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/mem.h"
#if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK
/* if MEM_OVERFLOW_CHECK or MEMP_OVERFLOW_CHECK is turned on, we reserve some
* bytes at the beginning and at the end of each element, initialize them as
* 0xcd and check them later.
* If MEM(P)_OVERFLOW_CHECK is >= 2, on every call to mem(p)_malloc or mem(p)_free,
* every single element in each pool/heap is checked!
* This is VERY SLOW but also very helpful.
* MEM_SANITY_REGION_BEFORE and MEM_SANITY_REGION_AFTER can be overridden in
* lwipopts.h to change the amount reserved for checking. */
#ifndef MEM_SANITY_REGION_BEFORE
#define MEM_SANITY_REGION_BEFORE 16
#endif /* MEM_SANITY_REGION_BEFORE*/
#if MEM_SANITY_REGION_BEFORE > 0
#define MEM_SANITY_REGION_BEFORE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_BEFORE)
#else
#define MEM_SANITY_REGION_BEFORE_ALIGNED 0
#endif /* MEM_SANITY_REGION_BEFORE*/
#ifndef MEM_SANITY_REGION_AFTER
#define MEM_SANITY_REGION_AFTER 16
#endif /* MEM_SANITY_REGION_AFTER*/
#if MEM_SANITY_REGION_AFTER > 0
#define MEM_SANITY_REGION_AFTER_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_AFTER)
#else
#define MEM_SANITY_REGION_AFTER_ALIGNED 0
#endif /* MEM_SANITY_REGION_AFTER*/
void mem_overflow_init_raw(void *p, size_t size);
void mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2);
#endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_MEMP_PRIV_H */

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/**
* @file
* memory pools lwIP internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_MEMP_PRIV_H
#define LWIP_HDR_MEMP_PRIV_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/mem.h"
#include "lwip/priv/mem_priv.h"
#if MEMP_OVERFLOW_CHECK
/* MEMP_SIZE: save space for struct memp and for sanity check */
#define MEMP_SIZE (LWIP_MEM_ALIGN_SIZE(sizeof(struct memp)) + MEM_SANITY_REGION_BEFORE_ALIGNED)
#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x) + MEM_SANITY_REGION_AFTER_ALIGNED)
#else /* MEMP_OVERFLOW_CHECK */
/* No sanity checks
* We don't need to preserve the struct memp while not allocated, so we
* can save a little space and set MEMP_SIZE to 0.
*/
#define MEMP_SIZE 0
#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x))
#endif /* MEMP_OVERFLOW_CHECK */
#if !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK
struct memp {
struct memp *next;
#if MEMP_OVERFLOW_CHECK
const char *file;
int line;
#endif /* MEMP_OVERFLOW_CHECK */
};
#endif /* !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK */
#if MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS
/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */
typedef enum {
/* Get the first (via:
MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/
MEMP_POOL_HELPER_FIRST = ((u8_t)
#define LWIP_MEMPOOL(name,num,size,desc)
#define LWIP_MALLOC_MEMPOOL_START 1
#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0
#define LWIP_MALLOC_MEMPOOL_END
#include "lwip/priv/memp_std.h"
) ,
/* Get the last (via:
MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */
MEMP_POOL_HELPER_LAST = ((u8_t)
#define LWIP_MEMPOOL(name,num,size,desc)
#define LWIP_MALLOC_MEMPOOL_START
#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *
#define LWIP_MALLOC_MEMPOOL_END 1
#include "lwip/priv/memp_std.h"
)
} memp_pool_helper_t;
/* The actual start and stop values are here (cast them over)
We use this helper type and these defines so we can avoid using const memp_t values */
#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST)
#endif /* MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS */
/** Memory pool descriptor */
struct memp_desc {
#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY
/** Textual description */
const char *desc;
#endif /* LWIP_DEBUG || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY */
#if MEMP_STATS
/** Statistics */
struct stats_mem *stats;
#endif
/** Element size */
u16_t size;
#if !MEMP_MEM_MALLOC
/** Number of elements */
u16_t num;
/** Base address */
u8_t *base;
/** First free element of each pool. Elements form a linked list. */
struct memp **tab;
#endif /* MEMP_MEM_MALLOC */
};
#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY
#define DECLARE_LWIP_MEMPOOL_DESC(desc) (desc),
#else
#define DECLARE_LWIP_MEMPOOL_DESC(desc)
#endif
#if MEMP_STATS
#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name) static struct stats_mem name;
#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name) &name,
#else
#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name)
#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name)
#endif
void memp_init_pool(const struct memp_desc *desc);
#if MEMP_OVERFLOW_CHECK
void *memp_malloc_pool_fn(const struct memp_desc* desc, const char* file, const int line);
#define memp_malloc_pool(d) memp_malloc_pool_fn((d), __FILE__, __LINE__)
#else
void *memp_malloc_pool(const struct memp_desc *desc);
#endif
void memp_free_pool(const struct memp_desc* desc, void *mem);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_MEMP_PRIV_H */

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/**
* @file
* lwIP internal memory pools (do not use in application code)
* This file is deliberately included multiple times: once with empty
* definition of LWIP_MEMPOOL() to handle all includes and multiple times
* to build up various lists of mem pools.
*/
/*
* SETUP: Make sure we define everything we will need.
*
* We have create three types of pools:
* 1) MEMPOOL - standard pools
* 2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c
* 3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct
*
* If the include'r doesn't require any special treatment of each of the types
* above, then will declare #2 & #3 to be just standard mempools.
*/
#ifndef LWIP_MALLOC_MEMPOOL
/* This treats "malloc pools" just like any other pool.
The pools are a little bigger to provide 'size' as the amount of user data. */
#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper))), "MALLOC_"#size)
#define LWIP_MALLOC_MEMPOOL_START
#define LWIP_MALLOC_MEMPOOL_END
#endif /* LWIP_MALLOC_MEMPOOL */
#ifndef LWIP_PBUF_MEMPOOL
/* This treats "pbuf pools" just like any other pool.
* Allocates buffers for a pbuf struct AND a payload size */
#define LWIP_PBUF_MEMPOOL(name, num, payload, desc) LWIP_MEMPOOL(name, num, (LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf)) + LWIP_MEM_ALIGN_SIZE(payload)), desc)
#endif /* LWIP_PBUF_MEMPOOL */
/*
* A list of internal pools used by LWIP.
*
* LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description)
* creates a pool name MEMP_pool_name. description is used in stats.c
*/
#if LWIP_RAW
LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb), "RAW_PCB")
#endif /* LWIP_RAW */
#if LWIP_UDP
LWIP_MEMPOOL(UDP_PCB, MEMP_NUM_UDP_PCB, sizeof(struct udp_pcb), "UDP_PCB")
#endif /* LWIP_UDP */
#if LWIP_TCP
LWIP_MEMPOOL(TCP_PCB, MEMP_NUM_TCP_PCB, sizeof(struct tcp_pcb), "TCP_PCB")
LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN, sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN")
LWIP_MEMPOOL(TCP_SEG, MEMP_NUM_TCP_SEG, sizeof(struct tcp_seg), "TCP_SEG")
#endif /* LWIP_TCP */
#if LWIP_ALTCP && LWIP_TCP
LWIP_MEMPOOL(ALTCP_PCB, MEMP_NUM_ALTCP_PCB, sizeof(struct altcp_pcb), "ALTCP_PCB")
#endif /* LWIP_ALTCP && LWIP_TCP */
#if LWIP_IPV4 && IP_REASSEMBLY
LWIP_MEMPOOL(REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip_reassdata), "REASSDATA")
#endif /* LWIP_IPV4 && IP_REASSEMBLY */
#if (IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG)
LWIP_MEMPOOL(FRAG_PBUF, MEMP_NUM_FRAG_PBUF, sizeof(struct pbuf_custom_ref),"FRAG_PBUF")
#endif /* IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF || (LWIP_IPV6 && LWIP_IPV6_FRAG) */
#if LWIP_NETCONN || LWIP_SOCKET
LWIP_MEMPOOL(NETBUF, MEMP_NUM_NETBUF, sizeof(struct netbuf), "NETBUF")
LWIP_MEMPOOL(NETCONN, MEMP_NUM_NETCONN, sizeof(struct netconn), "NETCONN")
#endif /* LWIP_NETCONN || LWIP_SOCKET */
#if NO_SYS==0
LWIP_MEMPOOL(TCPIP_MSG_API, MEMP_NUM_TCPIP_MSG_API, sizeof(struct tcpip_msg), "TCPIP_MSG_API")
#if LWIP_MPU_COMPATIBLE
LWIP_MEMPOOL(API_MSG, MEMP_NUM_API_MSG, sizeof(struct api_msg), "API_MSG")
#if LWIP_DNS
LWIP_MEMPOOL(DNS_API_MSG, MEMP_NUM_DNS_API_MSG, sizeof(struct dns_api_msg), "DNS_API_MSG")
#endif
#if LWIP_SOCKET && !LWIP_TCPIP_CORE_LOCKING
LWIP_MEMPOOL(SOCKET_SETGETSOCKOPT_DATA, MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA, sizeof(struct lwip_setgetsockopt_data), "SOCKET_SETGETSOCKOPT_DATA")
#endif
#if LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL)
LWIP_MEMPOOL(SELECT_CB, MEMP_NUM_SELECT_CB, sizeof(struct lwip_select_cb), "SELECT_CB")
#endif /* LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL) */
#if LWIP_NETIF_API
LWIP_MEMPOOL(NETIFAPI_MSG, MEMP_NUM_NETIFAPI_MSG, sizeof(struct netifapi_msg), "NETIFAPI_MSG")
#endif
#endif /* LWIP_MPU_COMPATIBLE */
#if !LWIP_TCPIP_CORE_LOCKING_INPUT
LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg), "TCPIP_MSG_INPKT")
#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
#endif /* NO_SYS==0 */
#if LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING
LWIP_MEMPOOL(ARP_QUEUE, MEMP_NUM_ARP_QUEUE, sizeof(struct etharp_q_entry), "ARP_QUEUE")
#endif /* LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING */
#if LWIP_IGMP
LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group), "IGMP_GROUP")
#endif /* LWIP_IGMP */
#if LWIP_TIMERS && !LWIP_TIMERS_CUSTOM
LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT")
#endif /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */
#if LWIP_DNS && LWIP_SOCKET
LWIP_MEMPOOL(NETDB, MEMP_NUM_NETDB, NETDB_ELEM_SIZE, "NETDB")
#endif /* LWIP_DNS && LWIP_SOCKET */
#if LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
LWIP_MEMPOOL(LOCALHOSTLIST, MEMP_NUM_LOCALHOSTLIST, LOCALHOSTLIST_ELEM_SIZE, "LOCALHOSTLIST")
#endif /* LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#if LWIP_IPV6 && LWIP_ND6_QUEUEING
LWIP_MEMPOOL(ND6_QUEUE, MEMP_NUM_ND6_QUEUE, sizeof(struct nd6_q_entry), "ND6_QUEUE")
#endif /* LWIP_IPV6 && LWIP_ND6_QUEUEING */
#if LWIP_IPV6 && LWIP_IPV6_REASS
LWIP_MEMPOOL(IP6_REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip6_reassdata), "IP6_REASSDATA")
#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */
#if LWIP_IPV6 && LWIP_IPV6_MLD
LWIP_MEMPOOL(MLD6_GROUP, MEMP_NUM_MLD6_GROUP, sizeof(struct mld_group), "MLD6_GROUP")
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
/*
* A list of pools of pbuf's used by LWIP.
*
* LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description)
* creates a pool name MEMP_pool_name. description is used in stats.c
* This allocates enough space for the pbuf struct and a payload.
* (Example: pbuf_payload_size=0 allocates only size for the struct)
*/
LWIP_MEMPOOL(PBUF, MEMP_NUM_PBUF, sizeof(struct pbuf), "PBUF_REF/ROM")
LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, PBUF_POOL_BUFSIZE, "PBUF_POOL")
/*
* Allow for user-defined pools; this must be explicitly set in lwipopts.h
* since the default is to NOT look for lwippools.h
*/
#if MEMP_USE_CUSTOM_POOLS
#include "lwippools.h"
#endif /* MEMP_USE_CUSTOM_POOLS */
/*
* REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later
* (#undef is ignored for something that is not defined)
*/
#undef LWIP_MEMPOOL
#undef LWIP_MALLOC_MEMPOOL
#undef LWIP_MALLOC_MEMPOOL_START
#undef LWIP_MALLOC_MEMPOOL_END
#undef LWIP_PBUF_MEMPOOL

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/**
* @file
*
* Neighbor discovery and stateless address autoconfiguration for IPv6.
* Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
* (Address autoconfiguration).
*/
/*
* Copyright (c) 2010 Inico Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_ND6_PRIV_H
#define LWIP_HDR_ND6_PRIV_H
#include "lwip/opt.h"
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/ip6_addr.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_ND6_QUEUEING
/** struct for queueing outgoing packets for unknown address
* defined here to be accessed by memp.h
*/
struct nd6_q_entry {
struct nd6_q_entry *next;
struct pbuf *p;
};
#endif /* LWIP_ND6_QUEUEING */
/** Struct for tables. */
struct nd6_neighbor_cache_entry {
ip6_addr_t next_hop_address;
struct netif *netif;
u8_t lladdr[NETIF_MAX_HWADDR_LEN];
/*u32_t pmtu;*/
#if LWIP_ND6_QUEUEING
/** Pointer to queue of pending outgoing packets on this entry. */
struct nd6_q_entry *q;
#else /* LWIP_ND6_QUEUEING */
/** Pointer to a single pending outgoing packet on this entry. */
struct pbuf *q;
#endif /* LWIP_ND6_QUEUEING */
u8_t state;
u8_t isrouter;
union {
u32_t reachable_time; /* in seconds */
u32_t delay_time; /* ticks (ND6_TMR_INTERVAL) */
u32_t probes_sent;
u32_t stale_time; /* ticks (ND6_TMR_INTERVAL) */
} counter;
};
struct nd6_destination_cache_entry {
ip6_addr_t destination_addr;
ip6_addr_t next_hop_addr;
u16_t pmtu;
u32_t age;
};
struct nd6_prefix_list_entry {
ip6_addr_t prefix;
struct netif *netif;
u32_t invalidation_timer; /* in seconds */
};
struct nd6_router_list_entry {
struct nd6_neighbor_cache_entry *neighbor_entry;
u32_t invalidation_timer; /* in seconds */
u8_t flags;
};
enum nd6_neighbor_cache_entry_state {
ND6_NO_ENTRY = 0,
ND6_INCOMPLETE,
ND6_REACHABLE,
ND6_STALE,
ND6_DELAY,
ND6_PROBE
};
#define ND6_HOPLIM 255 /* maximum hop limit, required in all ND packets */
#define ND6_2HRS 7200 /* two hours, expressed in number of seconds */
/* Router tables. */
/* @todo make these static? and entries accessible through API? */
extern struct nd6_neighbor_cache_entry neighbor_cache[];
extern struct nd6_destination_cache_entry destination_cache[];
extern struct nd6_prefix_list_entry prefix_list[];
extern struct nd6_router_list_entry default_router_list[];
/* Default values, can be updated by a RA message. */
extern u32_t reachable_time;
extern u32_t retrans_timer;
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 */
#endif /* LWIP_HDR_ND6_PRIV_H */

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/**
* @file
* raw API internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_RAW_PRIV_H
#define LWIP_HDR_RAW_PRIV_H
#include "lwip/opt.h"
#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
#include "lwip/raw.h"
#ifdef __cplusplus
extern "C" {
#endif
/** return codes for raw_input */
typedef enum raw_input_state
{
RAW_INPUT_NONE = 0, /* pbuf did not match any pcbs */
RAW_INPUT_EATEN, /* pbuf handed off and delivered to pcb */
RAW_INPUT_DELIVERED /* pbuf only delivered to pcb (pbuf can still be referenced) */
} raw_input_state_t;
/* The following functions are the lower layer interface to RAW. */
raw_input_state_t raw_input(struct pbuf *p, struct netif *inp);
void raw_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_RAW */
#endif /* LWIP_HDR_RAW_PRIV_H */

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/**
* @file
* Sockets API internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. <joel.cunningham@garmin.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Joel Cunningham <joel.cunningham@me.com>
*
*/
#ifndef LWIP_HDR_SOCKETS_PRIV_H
#define LWIP_HDR_SOCKETS_PRIV_H
#include "lwip/opt.h"
#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
#include "lwip/err.h"
#include "lwip/sockets.h"
#include "lwip/sys.h"
#ifdef __cplusplus
extern "C" {
#endif
#define NUM_SOCKETS MEMP_NUM_NETCONN
/** This is overridable for the rare case where more than 255 threads
* select on the same socket...
*/
#ifndef SELWAIT_T
#define SELWAIT_T u8_t
#endif
union lwip_sock_lastdata {
struct netbuf *netbuf;
struct pbuf *pbuf;
};
/** Contains all internal pointers and states used for a socket */
struct lwip_sock {
/** sockets currently are built on netconns, each socket has one netconn */
struct netconn *conn;
/** data that was left from the previous read */
union lwip_sock_lastdata lastdata;
#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL
/** number of times data was received, set by event_callback(),
tested by the receive and select functions */
s16_t rcvevent;
/** number of times data was ACKed (free send buffer), set by event_callback(),
tested by select */
u16_t sendevent;
/** error happened for this socket, set by event_callback(), tested by select */
u16_t errevent;
/** counter of how many threads are waiting for this socket using select */
SELWAIT_T select_waiting;
#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */
#if LWIP_NETCONN_FULLDUPLEX
/* counter of how many threads are using a struct lwip_sock (not the 'int') */
u8_t fd_used;
/* status of pending close/delete actions */
u8_t fd_free_pending;
#define LWIP_SOCK_FD_FREE_TCP 1
#define LWIP_SOCK_FD_FREE_FREE 2
#endif
#if ESP_LWIP_LOCK
sys_mutex_t lock;
#endif
};
#ifndef set_errno
#define set_errno(err) do { if (err) { errno = (err); } } while(0)
#endif
#if !LWIP_TCPIP_CORE_LOCKING
/** Maximum optlen used by setsockopt/getsockopt */
#define LWIP_SETGETSOCKOPT_MAXOPTLEN LWIP_MAX(16, sizeof(struct ifreq))
/** This struct is used to pass data to the set/getsockopt_internal
* functions running in tcpip_thread context (only a void* is allowed) */
struct lwip_setgetsockopt_data {
/** socket index for which to change options */
int s;
/** level of the option to process */
int level;
/** name of the option to process */
int optname;
/** set: value to set the option to
* get: value of the option is stored here */
#if LWIP_MPU_COMPATIBLE
u8_t optval[LWIP_SETGETSOCKOPT_MAXOPTLEN];
#else
union {
void *p;
const void *pc;
} optval;
#endif
/** size of *optval */
socklen_t optlen;
/** if an error occurs, it is temporarily stored here */
int err;
/** semaphore to wake up the calling task */
void* completed_sem;
};
#endif /* !LWIP_TCPIP_CORE_LOCKING */
#ifdef __cplusplus
}
#endif
struct lwip_sock* lwip_socket_dbg_get_socket(int fd);
#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL
#if LWIP_NETCONN_SEM_PER_THREAD
#define SELECT_SEM_T sys_sem_t*
#define SELECT_SEM_PTR(sem) (sem)
#else /* LWIP_NETCONN_SEM_PER_THREAD */
#define SELECT_SEM_T sys_sem_t
#define SELECT_SEM_PTR(sem) (&(sem))
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
/** Description for a task waiting in select */
struct lwip_select_cb {
/** Pointer to the next waiting task */
struct lwip_select_cb *next;
/** Pointer to the previous waiting task */
struct lwip_select_cb *prev;
#if LWIP_SOCKET_SELECT
/** readset passed to select */
fd_set *readset;
/** writeset passed to select */
fd_set *writeset;
/** unimplemented: exceptset passed to select */
fd_set *exceptset;
#endif /* LWIP_SOCKET_SELECT */
#if LWIP_SOCKET_POLL
/** fds passed to poll; NULL if select */
struct pollfd *poll_fds;
/** nfds passed to poll; 0 if select */
nfds_t poll_nfds;
#endif /* LWIP_SOCKET_POLL */
/** don't signal the same semaphore twice: set to 1 when signalled */
int sem_signalled;
/** semaphore to wake up a task waiting for select */
SELECT_SEM_T sem;
};
#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */
#endif /* LWIP_SOCKET */
#endif /* LWIP_HDR_SOCKETS_PRIV_H */

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/**
* @file
* TCP internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_TCP_PRIV_H
#define LWIP_HDR_TCP_PRIV_H
#include "lwip/opt.h"
#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/tcp.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "lwip/ip.h"
#include "lwip/icmp.h"
#include "lwip/err.h"
#include "lwip/ip6.h"
#include "lwip/ip6_addr.h"
#include "lwip/prot/tcp.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Functions for interfacing with TCP: */
/* Lower layer interface to TCP: */
void tcp_init (void); /* Initialize this module. */
void tcp_tmr (void); /* Must be called every
TCP_TMR_INTERVAL
ms. (Typically 250 ms). */
/* It is also possible to call these two functions at the right
intervals (instead of calling tcp_tmr()). */
void tcp_slowtmr (void);
void tcp_fasttmr (void);
/* Call this from a netif driver (watch out for threading issues!) that has
returned a memory error on transmit and now has free buffers to send more.
This iterates all active pcbs that had an error and tries to call
tcp_output, so use this with care as it might slow down the system. */
void tcp_txnow (void);
/* Only used by IP to pass a TCP segment to TCP: */
void tcp_input (struct pbuf *p, struct netif *inp);
/* Used within the TCP code only: */
struct tcp_pcb * tcp_alloc (u8_t prio);
void tcp_free (struct tcp_pcb *pcb);
void tcp_abandon (struct tcp_pcb *pcb, int reset);
err_t tcp_send_empty_ack(struct tcp_pcb *pcb);
err_t tcp_rexmit (struct tcp_pcb *pcb);
err_t tcp_rexmit_rto_prepare(struct tcp_pcb *pcb);
void tcp_rexmit_rto_commit(struct tcp_pcb *pcb);
void tcp_rexmit_rto (struct tcp_pcb *pcb);
void tcp_rexmit_fast (struct tcp_pcb *pcb);
u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb);
err_t tcp_process_refused_data(struct tcp_pcb *pcb);
/**
* This is the Nagle algorithm: try to combine user data to send as few TCP
* segments as possible. Only send if
* - no previously transmitted data on the connection remains unacknowledged or
* - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or
* - the only unsent segment is at least pcb->mss bytes long (or there is more
* than one unsent segment - with lwIP, this can happen although unsent->len < mss)
* - or if we are in fast-retransmit (TF_INFR)
*/
#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \
((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \
(((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
((tpcb)->unsent->len >= (tpcb)->mss))) || \
((tcp_sndbuf(tpcb) == 0) || (tcp_sndqueuelen(tpcb) >= TCP_SND_QUEUELEN)) \
) ? 1 : 0)
#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK)
#define TCP_SEQ_LT(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) < 0)
#define TCP_SEQ_LEQ(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) <= 0)
#define TCP_SEQ_GT(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) > 0)
#define TCP_SEQ_GEQ(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) >= 0)
/* is b<=a<=c? */
#if 0 /* see bug #10548 */
#define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b))
#endif
#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c))
#ifndef TCP_TMR_INTERVAL
#define TCP_TMR_INTERVAL 250 /* The TCP timer interval in milliseconds. */
#endif /* TCP_TMR_INTERVAL */
#ifndef TCP_FAST_INTERVAL
#define TCP_FAST_INTERVAL TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */
#endif /* TCP_FAST_INTERVAL */
#ifndef TCP_SLOW_INTERVAL
#define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) /* the coarse grained timeout in milliseconds */
#endif /* TCP_SLOW_INTERVAL */
#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */
#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */
#define TCP_OOSEQ_TIMEOUT 6U /* x RTO */
#ifndef TCP_MSL
#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */
#endif
/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */
#ifndef TCP_KEEPIDLE_DEFAULT
#define TCP_KEEPIDLE_DEFAULT 7200000UL /* Default KEEPALIVE timer in milliseconds */
#endif
#ifndef TCP_KEEPINTVL_DEFAULT
#define TCP_KEEPINTVL_DEFAULT 75000UL /* Default Time between KEEPALIVE probes in milliseconds */
#endif
#ifndef TCP_KEEPCNT_DEFAULT
#define TCP_KEEPCNT_DEFAULT 9U /* Default Counter for KEEPALIVE probes */
#endif
#define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT /* Maximum KEEPALIVE probe time */
#define TCP_TCPLEN(seg) ((seg)->len + (((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0) ? 1U : 0U))
/** Flags used on input processing, not on pcb->flags
*/
#define TF_RESET (u8_t)0x08U /* Connection was reset. */
#define TF_CLOSED (u8_t)0x10U /* Connection was successfully closed. */
#define TF_GOT_FIN (u8_t)0x20U /* Connection was closed by the remote end. */
#if LWIP_EVENT_API
#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) ret = lwip_tcp_event(arg, (pcb),\
LWIP_EVENT_ACCEPT, NULL, 0, err)
#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_SENT, NULL, space, ERR_OK)
#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_RECV, (p), 0, (err))
#define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_RECV, NULL, 0, ERR_OK)
#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_CONNECTED, NULL, 0, (err))
#define TCP_EVENT_POLL(pcb,ret) do { if ((pcb)->state != SYN_RCVD) { \
ret = lwip_tcp_event((pcb)->callback_arg, (pcb), LWIP_EVENT_POLL, NULL, 0, ERR_OK); \
} else { \
ret = ERR_ARG; } } while(0)
/* For event API, last state SYN_RCVD must be excluded here: the application
has not seen this pcb, yet! */
#define TCP_EVENT_ERR(last_state,errf,arg,err) do { if (last_state != SYN_RCVD) { \
lwip_tcp_event((arg), NULL, LWIP_EVENT_ERR, NULL, 0, (err)); } } while(0)
#else /* LWIP_EVENT_API */
#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) \
do { \
if((lpcb)->accept != NULL) \
(ret) = (lpcb)->accept((arg),(pcb),(err)); \
else (ret) = ERR_ARG; \
} while (0)
#define TCP_EVENT_SENT(pcb,space,ret) \
do { \
if((pcb)->sent != NULL) \
(ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_RECV(pcb,p,err,ret) \
do { \
if((pcb)->recv != NULL) { \
(ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\
} else { \
(ret) = tcp_recv_null(NULL, (pcb), (p), (err)); \
} \
} while (0)
#define TCP_EVENT_CLOSED(pcb,ret) \
do { \
if(((pcb)->recv != NULL)) { \
(ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\
} else { \
(ret) = ERR_OK; \
} \
} while (0)
#define TCP_EVENT_CONNECTED(pcb,err,ret) \
do { \
if((pcb)->connected != NULL) \
(ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_POLL(pcb,ret) \
do { \
if((pcb)->poll != NULL) \
(ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_ERR(last_state,errf,arg,err) \
do { \
LWIP_UNUSED_ARG(last_state); \
if((errf) != NULL) \
(errf)((arg),(err)); \
} while (0)
#endif /* LWIP_EVENT_API */
/** Enabled extra-check for TCP_OVERSIZE if LWIP_DEBUG is enabled */
#if TCP_OVERSIZE && defined(LWIP_DEBUG)
#define TCP_OVERSIZE_DBGCHECK 1
#else
#define TCP_OVERSIZE_DBGCHECK 0
#endif
/** Don't generate checksum on copy if CHECKSUM_GEN_TCP is disabled */
#define TCP_CHECKSUM_ON_COPY (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP)
/* This structure represents a TCP segment on the unsent, unacked and ooseq queues */
struct tcp_seg {
struct tcp_seg *next; /* used when putting segments on a queue */
struct pbuf *p; /* buffer containing data + TCP header */
u16_t len; /* the TCP length of this segment */
#if TCP_OVERSIZE_DBGCHECK
u16_t oversize_left; /* Extra bytes available at the end of the last
pbuf in unsent (used for asserting vs.
tcp_pcb.unsent_oversize only) */
#endif /* TCP_OVERSIZE_DBGCHECK */
#if TCP_CHECKSUM_ON_COPY
u16_t chksum;
u8_t chksum_swapped;
#endif /* TCP_CHECKSUM_ON_COPY */
u8_t flags;
#define TF_SEG_OPTS_MSS (u8_t)0x01U /* Include MSS option (only used in SYN segments) */
#define TF_SEG_OPTS_TS (u8_t)0x02U /* Include timestamp option. */
#define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U /* ALL data (not the header) is
checksummed into 'chksum' */
#define TF_SEG_OPTS_WND_SCALE (u8_t)0x08U /* Include WND SCALE option (only used in SYN segments) */
#define TF_SEG_OPTS_SACK_PERM (u8_t)0x10U /* Include SACK Permitted option (only used in SYN segments) */
struct tcp_hdr *tcphdr; /* the TCP header */
};
#define LWIP_TCP_OPT_EOL 0
#define LWIP_TCP_OPT_NOP 1
#define LWIP_TCP_OPT_MSS 2
#define LWIP_TCP_OPT_WS 3
#define LWIP_TCP_OPT_SACK_PERM 4
#define LWIP_TCP_OPT_TS 8
#define LWIP_TCP_OPT_LEN_MSS 4
#if LWIP_TCP_TIMESTAMPS
#define LWIP_TCP_OPT_LEN_TS 10
#define LWIP_TCP_OPT_LEN_TS_OUT 12 /* aligned for output (includes NOP padding) */
#else
#define LWIP_TCP_OPT_LEN_TS_OUT 0
#endif
#if LWIP_WND_SCALE
#define LWIP_TCP_OPT_LEN_WS 3
#define LWIP_TCP_OPT_LEN_WS_OUT 4 /* aligned for output (includes NOP padding) */
#else
#define LWIP_TCP_OPT_LEN_WS_OUT 0
#endif
#if LWIP_TCP_SACK_OUT
#define LWIP_TCP_OPT_LEN_SACK_PERM 2
#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 4 /* aligned for output (includes NOP padding) */
#else
#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 0
#endif
#define LWIP_TCP_OPT_LENGTH(flags) \
((flags) & TF_SEG_OPTS_MSS ? LWIP_TCP_OPT_LEN_MSS : 0) + \
((flags) & TF_SEG_OPTS_TS ? LWIP_TCP_OPT_LEN_TS_OUT : 0) + \
((flags) & TF_SEG_OPTS_WND_SCALE ? LWIP_TCP_OPT_LEN_WS_OUT : 0) + \
((flags) & TF_SEG_OPTS_SACK_PERM ? LWIP_TCP_OPT_LEN_SACK_PERM_OUT : 0)
/** This returns a TCP header option for MSS in an u32_t */
#define TCP_BUILD_MSS_OPTION(mss) lwip_htonl(0x02040000 | ((mss) & 0xFFFF))
#if LWIP_WND_SCALE
#define TCPWNDSIZE_F U32_F
#define TCPWND_MAX 0xFFFFFFFFU
#define TCPWND_CHECK16(x) LWIP_ASSERT("window size > 0xFFFF", (x) <= 0xFFFF)
#define TCPWND_MIN16(x) ((u16_t)LWIP_MIN((x), 0xFFFF))
#else /* LWIP_WND_SCALE */
#define TCPWNDSIZE_F U16_F
#define TCPWND_MAX 0xFFFFU
#define TCPWND_CHECK16(x)
#define TCPWND_MIN16(x) x
#endif /* LWIP_WND_SCALE */
/* Global variables: */
extern struct tcp_pcb *tcp_input_pcb;
extern u32_t tcp_ticks;
extern u8_t tcp_active_pcbs_changed;
/* The TCP PCB lists. */
union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
struct tcp_pcb_listen *listen_pcbs;
struct tcp_pcb *pcbs;
};
extern struct tcp_pcb *tcp_bound_pcbs;
extern union tcp_listen_pcbs_t tcp_listen_pcbs;
extern struct tcp_pcb *tcp_active_pcbs; /* List of all TCP PCBs that are in a
state in which they accept or send
data. */
extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. */
#define NUM_TCP_PCB_LISTS_NO_TIME_WAIT 3
#define NUM_TCP_PCB_LISTS 4
extern struct tcp_pcb ** const tcp_pcb_lists[NUM_TCP_PCB_LISTS];
/* Axioms about the above lists:
1) Every TCP PCB that is not CLOSED is in one of the lists.
2) A PCB is only in one of the lists.
3) All PCBs in the tcp_listen_pcbs list is in LISTEN state.
4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state.
*/
/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB
with a PCB list or removes a PCB from a list, respectively. */
#ifndef TCP_DEBUG_PCB_LISTS
#define TCP_DEBUG_PCB_LISTS 0
#endif
#if TCP_DEBUG_PCB_LISTS
#define TCP_REG(pcbs, npcb) do {\
struct tcp_pcb *tcp_tmp_pcb; \
LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %"U16_F"\n", (void *)(npcb), (npcb)->local_port)); \
for (tcp_tmp_pcb = *(pcbs); \
tcp_tmp_pcb != NULL; \
tcp_tmp_pcb = tcp_tmp_pcb->next) { \
LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != (npcb)); \
} \
LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \
(npcb)->next = *(pcbs); \
LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \
*(pcbs) = (npcb); \
LWIP_ASSERT("TCP_REG: tcp_pcbs sane", tcp_pcbs_sane()); \
tcp_timer_needed(); \
} while(0)
#define TCP_RMV(pcbs, npcb) do { \
struct tcp_pcb *tcp_tmp_pcb; \
LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \
LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \
if(*(pcbs) == (npcb)) { \
*(pcbs) = (*pcbs)->next; \
} else for (tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \
if(tcp_tmp_pcb->next == (npcb)) { \
tcp_tmp_pcb->next = (npcb)->next; \
break; \
} \
} \
(npcb)->next = NULL; \
LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \
} while(0)
#else /* LWIP_DEBUG */
#define TCP_REG(pcbs, npcb) \
do { \
(npcb)->next = *pcbs; \
*(pcbs) = (npcb); \
tcp_timer_needed(); \
} while (0)
#define TCP_RMV(pcbs, npcb) \
do { \
if(*(pcbs) == (npcb)) { \
(*(pcbs)) = (*pcbs)->next; \
} \
else { \
struct tcp_pcb *tcp_tmp_pcb; \
for (tcp_tmp_pcb = *pcbs; \
tcp_tmp_pcb != NULL; \
tcp_tmp_pcb = tcp_tmp_pcb->next) { \
if(tcp_tmp_pcb->next == (npcb)) { \
tcp_tmp_pcb->next = (npcb)->next; \
break; \
} \
} \
} \
(npcb)->next = NULL; \
} while(0)
#endif /* LWIP_DEBUG */
#define TCP_REG_ACTIVE(npcb) \
do { \
TCP_REG(&tcp_active_pcbs, npcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
#define TCP_RMV_ACTIVE(npcb) \
do { \
TCP_RMV(&tcp_active_pcbs, npcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
#define TCP_PCB_REMOVE_ACTIVE(pcb) \
do { \
tcp_pcb_remove(&tcp_active_pcbs, pcb); \
tcp_active_pcbs_changed = 1; \
} while (0)
/* Internal functions: */
struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb);
void tcp_pcb_purge(struct tcp_pcb *pcb);
void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb);
void tcp_segs_free(struct tcp_seg *seg);
void tcp_seg_free(struct tcp_seg *seg);
struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg);
#define tcp_ack(pcb) \
do { \
if((pcb)->flags & TF_ACK_DELAY) { \
tcp_clear_flags(pcb, TF_ACK_DELAY); \
tcp_ack_now(pcb); \
} \
else { \
tcp_set_flags(pcb, TF_ACK_DELAY); \
} \
} while (0)
#define tcp_ack_now(pcb) \
tcp_set_flags(pcb, TF_ACK_NOW)
err_t tcp_send_fin(struct tcp_pcb *pcb);
err_t tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags);
void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg);
void tcp_rst(const struct tcp_pcb* pcb, u32_t seqno, u32_t ackno,
const ip_addr_t *local_ip, const ip_addr_t *remote_ip,
u16_t local_port, u16_t remote_port);
u32_t tcp_next_iss(struct tcp_pcb *pcb);
err_t tcp_keepalive(struct tcp_pcb *pcb);
err_t tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split);
err_t tcp_zero_window_probe(struct tcp_pcb *pcb);
void tcp_trigger_input_pcb_close(void);
#if TCP_CALCULATE_EFF_SEND_MSS
u16_t tcp_eff_send_mss_netif(u16_t sendmss, struct netif *outif,
const ip_addr_t *dest);
#define tcp_eff_send_mss(sendmss, src, dest) \
tcp_eff_send_mss_netif(sendmss, ip_route(src, dest), dest)
#endif /* TCP_CALCULATE_EFF_SEND_MSS */
#if LWIP_CALLBACK_API
err_t tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err);
#endif /* LWIP_CALLBACK_API */
#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
void tcp_debug_print(struct tcp_hdr *tcphdr);
void tcp_debug_print_flags(u8_t flags);
void tcp_debug_print_state(enum tcp_state s);
void tcp_debug_print_pcbs(void);
s16_t tcp_pcbs_sane(void);
#else
# define tcp_debug_print(tcphdr)
# define tcp_debug_print_flags(flags)
# define tcp_debug_print_state(s)
# define tcp_debug_print_pcbs()
# define tcp_pcbs_sane() 1
#endif /* TCP_DEBUG */
/** External function (implemented in timers.c), called when TCP detects
* that a timer is needed (i.e. active- or time-wait-pcb found). */
void tcp_timer_needed(void);
void tcp_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr);
#if TCP_QUEUE_OOSEQ
void tcp_free_ooseq(struct tcp_pcb *pcb);
#endif
#if LWIP_TCP_PCB_NUM_EXT_ARGS
err_t tcp_ext_arg_invoke_callbacks_passive_open(struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_TCP */
#endif /* LWIP_HDR_TCP_PRIV_H */

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/**
* @file
* TCPIP API internal implementations (do not use in application code)
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef LWIP_HDR_TCPIP_PRIV_H
#define LWIP_HDR_TCPIP_PRIV_H
#include "lwip/opt.h"
#if !NO_SYS /* don't build if not configured for use in lwipopts.h */
#include "lwip/tcpip.h"
#include "lwip/sys.h"
#include "lwip/timeouts.h"
#ifdef __cplusplus
extern "C" {
#endif
struct pbuf;
struct netif;
#if LWIP_MPU_COMPATIBLE
#define API_VAR_REF(name) (*(name))
#define API_VAR_DECLARE(type, name) type * name
#define API_VAR_ALLOC_EXT(type, pool, name, errorblock) do { \
name = (type *)memp_malloc(pool); \
if (name == NULL) { \
errorblock; \
} \
} while(0)
#define API_VAR_ALLOC(type, pool, name, errorval) API_VAR_ALLOC_EXT(type, pool, name, return errorval)
#define API_VAR_ALLOC_POOL(type, pool, name, errorval) do { \
name = (type *)LWIP_MEMPOOL_ALLOC(pool); \
if (name == NULL) { \
return errorval; \
} \
} while(0)
#define API_VAR_FREE(pool, name) memp_free(pool, name)
#define API_VAR_FREE_POOL(pool, name) LWIP_MEMPOOL_FREE(pool, name)
#define API_EXPR_REF(expr) (&(expr))
#if LWIP_NETCONN_SEM_PER_THREAD
#define API_EXPR_REF_SEM(expr) (expr)
#else
#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr)
#endif
#define API_EXPR_DEREF(expr) expr
#define API_MSG_M_DEF(m) m
#define API_MSG_M_DEF_C(t, m) t m
#else /* LWIP_MPU_COMPATIBLE */
#define API_VAR_REF(name) name
#define API_VAR_DECLARE(type, name) type name
#define API_VAR_ALLOC_EXT(type, pool, name, errorblock)
#define API_VAR_ALLOC(type, pool, name, errorval)
#define API_VAR_ALLOC_POOL(type, pool, name, errorval)
#define API_VAR_FREE(pool, name)
#define API_VAR_FREE_POOL(pool, name)
#define API_EXPR_REF(expr) expr
#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr)
#define API_EXPR_DEREF(expr) (*(expr))
#define API_MSG_M_DEF(m) *m
#define API_MSG_M_DEF_C(t, m) const t * m
#endif /* LWIP_MPU_COMPATIBLE */
err_t tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem);
struct tcpip_api_call_data
{
#if !LWIP_TCPIP_CORE_LOCKING
err_t err;
#if !LWIP_NETCONN_SEM_PER_THREAD
sys_sem_t sem;
#endif /* LWIP_NETCONN_SEM_PER_THREAD */
#else /* !LWIP_TCPIP_CORE_LOCKING */
u8_t dummy; /* avoid empty struct :-( */
#endif /* !LWIP_TCPIP_CORE_LOCKING */
};
typedef err_t (*tcpip_api_call_fn)(struct tcpip_api_call_data* call);
err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call);
enum tcpip_msg_type {
#if !LWIP_TCPIP_CORE_LOCKING
TCPIP_MSG_API,
TCPIP_MSG_API_CALL,
#endif /* !LWIP_TCPIP_CORE_LOCKING */
#if !LWIP_TCPIP_CORE_LOCKING_INPUT
TCPIP_MSG_INPKT,
#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS
TCPIP_MSG_TIMEOUT,
TCPIP_MSG_UNTIMEOUT,
#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */
TCPIP_MSG_CALLBACK,
TCPIP_MSG_CALLBACK_STATIC
};
struct tcpip_msg {
enum tcpip_msg_type type;
union {
#if !LWIP_TCPIP_CORE_LOCKING
struct {
tcpip_callback_fn function;
void* msg;
} api_msg;
struct {
tcpip_api_call_fn function;
struct tcpip_api_call_data *arg;
sys_sem_t *sem;
} api_call;
#endif /* LWIP_TCPIP_CORE_LOCKING */
#if !LWIP_TCPIP_CORE_LOCKING_INPUT
struct {
struct pbuf *p;
struct netif *netif;
netif_input_fn input_fn;
} inp;
#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
struct {
tcpip_callback_fn function;
void *ctx;
} cb;
#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS
struct {
u32_t msecs;
sys_timeout_handler h;
void *arg;
} tmo;
#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */
} msg;
};
#ifdef __cplusplus
}
#endif
#endif /* !NO_SYS */
#endif /* LWIP_HDR_TCPIP_PRIV_H */

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/**
* @file
* AutoIP protocol definitions
*/
/*
*
* Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Dominik Spies <kontakt@dspies.de>
*
* This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
* with RFC 3927.
*
*/
#ifndef LWIP_HDR_PROT_AUTOIP_H
#define LWIP_HDR_PROT_AUTOIP_H
#ifdef __cplusplus
extern "C" {
#endif
/* 169.254.0.0 */
#define AUTOIP_NET 0xA9FE0000
/* 169.254.1.0 */
#define AUTOIP_RANGE_START (AUTOIP_NET | 0x0100)
/* 169.254.254.255 */
#define AUTOIP_RANGE_END (AUTOIP_NET | 0xFEFF)
/* RFC 3927 Constants */
#define PROBE_WAIT 1 /* second (initial random delay) */
#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */
#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */
#define PROBE_NUM 3 /* (number of probe packets) */
#define ANNOUNCE_NUM 2 /* (number of announcement packets) */
#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */
#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */
#if ESP_LWIP
#define MAX_CONFLICTS LWIP_AUTOIP_MAX_CONFLICTS /* (max conflicts before rate limiting) */
#define RATE_LIMIT_INTERVAL LWIP_AUTOIP_RATE_LIMIT_INTERVAL /* seconds (delay between successive attempts) */
#else
#define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */
#define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */
#endif
#define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */
/* AutoIP client states */
typedef enum {
AUTOIP_STATE_OFF = 0,
AUTOIP_STATE_PROBING = 1,
AUTOIP_STATE_ANNOUNCING = 2,
AUTOIP_STATE_BOUND = 3
} autoip_state_enum_t;
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_PROT_AUTOIP_H */

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/**
* @file
* DHCP protocol definitions
*/
/*
* Copyright (c) 2001-2004 Leon Woestenberg <leon.woestenberg@gmx.net>
* Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Leon Woestenberg <leon.woestenberg@gmx.net>
*
*/
#ifndef LWIP_HDR_PROT_DHCP_H
#define LWIP_HDR_PROT_DHCP_H
#include "lwip/opt.h"
#include "lwip/arch.h"
#include "lwip/prot/ip4.h"
#ifdef __cplusplus
extern "C" {
#endif
/* DHCP message item offsets and length */
#define DHCP_CHADDR_LEN 16U
#define DHCP_SNAME_OFS 44U
#define DHCP_SNAME_LEN 64U
#define DHCP_FILE_OFS 108U
#define DHCP_FILE_LEN 128U
#define DHCP_MSG_LEN 236U
#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4U) /* 4 byte: cookie */
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
/** minimum set of fields of any DHCP message */
struct dhcp_msg
{
PACK_STRUCT_FLD_8(u8_t op);
PACK_STRUCT_FLD_8(u8_t htype);
PACK_STRUCT_FLD_8(u8_t hlen);
PACK_STRUCT_FLD_8(u8_t hops);
PACK_STRUCT_FIELD(u32_t xid);
PACK_STRUCT_FIELD(u16_t secs);
PACK_STRUCT_FIELD(u16_t flags);
PACK_STRUCT_FLD_S(ip4_addr_p_t ciaddr);
PACK_STRUCT_FLD_S(ip4_addr_p_t yiaddr);
PACK_STRUCT_FLD_S(ip4_addr_p_t siaddr);
PACK_STRUCT_FLD_S(ip4_addr_p_t giaddr);
PACK_STRUCT_FLD_8(u8_t chaddr[DHCP_CHADDR_LEN]);
PACK_STRUCT_FLD_8(u8_t sname[DHCP_SNAME_LEN]);
PACK_STRUCT_FLD_8(u8_t file[DHCP_FILE_LEN]);
PACK_STRUCT_FIELD(u32_t cookie);
#define DHCP_MIN_OPTIONS_LEN 68U
/** make sure user does not configure this too small */
#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN))
# undef DHCP_OPTIONS_LEN
#endif
/** allow this to be configured in lwipopts.h, but not too small */
#if (!defined(DHCP_OPTIONS_LEN))
/** set this to be sufficient for your options in outgoing DHCP msgs */
# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN
#endif
PACK_STRUCT_FLD_8(u8_t options[DHCP_OPTIONS_LEN]);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
/* DHCP client states */
typedef enum {
DHCP_STATE_OFF = 0,
DHCP_STATE_REQUESTING = 1,
DHCP_STATE_INIT = 2,
DHCP_STATE_REBOOTING = 3,
DHCP_STATE_REBINDING = 4,
DHCP_STATE_RENEWING = 5,
DHCP_STATE_SELECTING = 6,
DHCP_STATE_INFORMING = 7,
DHCP_STATE_CHECKING = 8,
DHCP_STATE_PERMANENT = 9, /* not yet implemented */
DHCP_STATE_BOUND = 10,
DHCP_STATE_RELEASING = 11, /* not yet implemented */
DHCP_STATE_BACKING_OFF = 12
} dhcp_state_enum_t;
/* DHCP op codes */
#define DHCP_BOOTREQUEST 1
#define DHCP_BOOTREPLY 2
/* DHCP message types */
#define DHCP_DISCOVER 1
#define DHCP_OFFER 2
#define DHCP_REQUEST 3
#define DHCP_DECLINE 4
#define DHCP_ACK 5
#define DHCP_NAK 6
#define DHCP_RELEASE 7
#define DHCP_INFORM 8
#define DHCP_MAGIC_COOKIE 0x63825363UL
/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */
/* BootP options */
#define DHCP_OPTION_PAD 0
#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */
#define DHCP_OPTION_ROUTER 3
#define DHCP_OPTION_DNS_SERVER 6
#define DHCP_OPTION_HOSTNAME 12
#define DHCP_OPTION_IP_TTL 23
#define DHCP_OPTION_MTU 26
#define DHCP_OPTION_BROADCAST 28
#define DHCP_OPTION_TCP_TTL 37
#define DHCP_OPTION_NTP 42
#define DHCP_OPTION_END 255
/* DHCP options */
#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */
#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */
#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */
#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */
#define DHCP_OPTION_MESSAGE_TYPE_LEN 1
#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */
#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */
#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */
#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2
#define DHCP_OPTION_T1 58 /* T1 renewal time */
#define DHCP_OPTION_T2 59 /* T2 rebinding time */
#define DHCP_OPTION_US 60
#define DHCP_OPTION_CLIENT_ID 61
#define DHCP_OPTION_TFTP_SERVERNAME 66
#define DHCP_OPTION_BOOTFILE 67
/* possible combinations of overloading the file and sname fields with options */
#define DHCP_OVERLOAD_NONE 0
#define DHCP_OVERLOAD_FILE 1
#define DHCP_OVERLOAD_SNAME 2
#define DHCP_OVERLOAD_SNAME_FILE 3
/* DHCP OPTION 61 TYPE */
#if ESP_DHCP
#define DHCP_OPTION_CLIENT_ID_MAC 0x01
#define DHCP_OPTION_CLIENT_ID_DUID 0x02
#define DHCP_OPTION_CLIENT_ID_IAID 0xff
#define DHCP_OPTION_CLIENT_ID_MAC_LEN 7
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_PROT_DHCP_H */

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/**
* @file
* DHCPv6 protocol definitions
*/
/*
* Copyright (c) 2017 Simon Goldschmidt <goldsimon@gmx.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_PROT_DHCP6_H
#define LWIP_HDR_PROT_DHCP6_H
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#define DHCP6_CLIENT_PORT 546
#define DHCP6_SERVER_PORT 547
/* DHCPv6 message item offsets and length */
#define DHCP6_TRANSACTION_ID_LEN 3
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
/** minimum set of fields of any DHCPv6 message */
struct dhcp6_msg
{
PACK_STRUCT_FLD_8(u8_t msgtype);
PACK_STRUCT_FLD_8(u8_t transaction_id[DHCP6_TRANSACTION_ID_LEN]);
/* options follow */
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
/* DHCP6 client states */
typedef enum {
DHCP6_STATE_OFF = 0,
DHCP6_STATE_STATELESS_IDLE = 1,
DHCP6_STATE_REQUESTING_CONFIG = 2
} dhcp6_state_enum_t;
/* DHCPv6 message types */
#define DHCP6_SOLICIT 1
#define DHCP6_ADVERTISE 2
#define DHCP6_REQUEST 3
#define DHCP6_CONFIRM 4
#define DHCP6_RENEW 5
#define DHCP6_REBIND 6
#define DHCP6_REPLY 7
#define DHCP6_RELEASE 8
#define DHCP6_DECLINE 9
#define DHCP6_RECONFIGURE 10
#define DHCP6_INFOREQUEST 11
#define DHCP6_RELAYFORW 12
#define DHCP6_RELAYREPL 13
/* More message types see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
/** DHCPv6 status codes */
#define DHCP6_STATUS_SUCCESS 0 /* Success. */
#define DHCP6_STATUS_UNSPECFAIL 1 /* Failure, reason unspecified; this status code is sent by either a client or a server to indicate a failure not explicitly specified in this document. */
#define DHCP6_STATUS_NOADDRSAVAIL 2 /* Server has no addresses available to assign to the IA(s). */
#define DHCP6_STATUS_NOBINDING 3 /* Client record (binding) unavailable. */
#define DHCP6_STATUS_NOTONLINK 4 /* The prefix for the address is not appropriate for the link to which the client is attached. */
#define DHCP6_STATUS_USEMULTICAST 5 /* Sent by a server to a client to force the client to send messages to the server using the All_DHCP_Relay_Agents_and_Servers address. */
/* More status codes see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
/** DHCPv6 DUID types */
#define DHCP6_DUID_LLT 1 /* LLT: Link-layer Address Plus Time */
#define DHCP6_DUID_EN 2 /* EN: Enterprise number */
#define DHCP6_DUID_LL 3 /* LL: Link-layer Address */
#define DHCP6_DUID_UUID 4 /* UUID (RFC 6355) */
/* DHCPv6 options */
#define DHCP6_OPTION_CLIENTID 1
#define DHCP6_OPTION_SERVERID 2
#define DHCP6_OPTION_IA_NA 3
#define DHCP6_OPTION_IA_TA 4
#define DHCP6_OPTION_IAADDR 5
#define DHCP6_OPTION_ORO 6
#define DHCP6_OPTION_PREFERENCE 7
#define DHCP6_OPTION_ELAPSED_TIME 8
#define DHCP6_OPTION_RELAY_MSG 9
#define DHCP6_OPTION_AUTH 11
#define DHCP6_OPTION_UNICAST 12
#define DHCP6_OPTION_STATUS_CODE 13
#define DHCP6_OPTION_RAPID_COMMIT 14
#define DHCP6_OPTION_USER_CLASS 15
#define DHCP6_OPTION_VENDOR_CLASS 16
#define DHCP6_OPTION_VENDOR_OPTS 17
#define DHCP6_OPTION_INTERFACE_ID 18
#define DHCP6_OPTION_RECONF_MSG 19
#define DHCP6_OPTION_RECONF_ACCEPT 20
/* More options see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
#define DHCP6_OPTION_DNS_SERVERS 23 /* RFC 3646 */
#define DHCP6_OPTION_DOMAIN_LIST 24 /* RFC 3646 */
#define DHCP6_OPTION_SNTP_SERVERS 31 /* RFC 4075 */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_PROT_DHCP6_H */

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/**
* @file
* DNS - host name to IP address resolver.
*/
/*
* Port to lwIP from uIP
* by Jim Pettinato April 2007
*
* security fixes and more by Simon Goldschmidt
*
* uIP version Copyright (c) 2002-2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LWIP_HDR_PROT_DNS_H
#define LWIP_HDR_PROT_DNS_H
#include "lwip/arch.h"
#ifdef __cplusplus
extern "C" {
#endif
/** DNS server port address */
#ifndef DNS_SERVER_PORT
#define DNS_SERVER_PORT 53
#endif
/* DNS field TYPE used for "Resource Records" */
#define DNS_RRTYPE_A 1 /* a host address */
#define DNS_RRTYPE_NS 2 /* an authoritative name server */
#define DNS_RRTYPE_MD 3 /* a mail destination (Obsolete - use MX) */
#define DNS_RRTYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */
#define DNS_RRTYPE_CNAME 5 /* the canonical name for an alias */
#define DNS_RRTYPE_SOA 6 /* marks the start of a zone of authority */
#define DNS_RRTYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */
#define DNS_RRTYPE_MG 8 /* a mail group member (EXPERIMENTAL) */
#define DNS_RRTYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */
#define DNS_RRTYPE_NULL 10 /* a null RR (EXPERIMENTAL) */
#define DNS_RRTYPE_WKS 11 /* a well known service description */
#define DNS_RRTYPE_PTR 12 /* a domain name pointer */
#define DNS_RRTYPE_HINFO 13 /* host information */
#define DNS_RRTYPE_MINFO 14 /* mailbox or mail list information */
#define DNS_RRTYPE_MX 15 /* mail exchange */
#define DNS_RRTYPE_TXT 16 /* text strings */
#define DNS_RRTYPE_AAAA 28 /* IPv6 address */
#define DNS_RRTYPE_SRV 33 /* service location */
#define DNS_RRTYPE_ANY 255 /* any type */
/* DNS field CLASS used for "Resource Records" */
#define DNS_RRCLASS_IN 1 /* the Internet */
#define DNS_RRCLASS_CS 2 /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */
#define DNS_RRCLASS_CH 3 /* the CHAOS class */
#define DNS_RRCLASS_HS 4 /* Hesiod [Dyer 87] */
#define DNS_RRCLASS_ANY 255 /* any class */
#define DNS_RRCLASS_FLUSH 0x800 /* Flush bit */
/* DNS protocol flags */
#define DNS_FLAG1_RESPONSE 0x80
#define DNS_FLAG1_OPCODE_STATUS 0x10
#define DNS_FLAG1_OPCODE_INVERSE 0x08
#define DNS_FLAG1_OPCODE_STANDARD 0x00
#define DNS_FLAG1_AUTHORATIVE 0x04
#define DNS_FLAG1_TRUNC 0x02
#define DNS_FLAG1_RD 0x01
#define DNS_FLAG2_RA 0x80
#define DNS_FLAG2_ERR_MASK 0x0f
#define DNS_FLAG2_ERR_NONE 0x00
#define DNS_FLAG2_ERR_NAME 0x03
#define DNS_HDR_GET_OPCODE(hdr) ((((hdr)->flags1) >> 3) & 0xF)
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
/** DNS message header */
struct dns_hdr {
PACK_STRUCT_FIELD(u16_t id);
PACK_STRUCT_FLD_8(u8_t flags1);
PACK_STRUCT_FLD_8(u8_t flags2);
PACK_STRUCT_FIELD(u16_t numquestions);
PACK_STRUCT_FIELD(u16_t numanswers);
PACK_STRUCT_FIELD(u16_t numauthrr);
PACK_STRUCT_FIELD(u16_t numextrarr);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
#define SIZEOF_DNS_HDR 12
/* Multicast DNS definitions */
/** UDP port for multicast DNS queries */
#ifndef DNS_MQUERY_PORT
#define DNS_MQUERY_PORT 5353
#endif
/* IPv4 group for multicast DNS queries: 224.0.0.251 */
#ifndef DNS_MQUERY_IPV4_GROUP_INIT
#define DNS_MQUERY_IPV4_GROUP_INIT IPADDR4_INIT_BYTES(224,0,0,251)
#endif
/* IPv6 group for multicast DNS queries: FF02::FB */
#ifndef DNS_MQUERY_IPV6_GROUP_INIT
#define DNS_MQUERY_IPV6_GROUP_INIT IPADDR6_INIT_HOST(0xFF020000,0,0,0xFB)
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_HDR_PROT_DNS_H */

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