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https://github.com/0xFEEDC0DE64/arduino-esp32.git
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IDF release/v4.0 4c81978a3
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me-no-dev
96
tools/sdk/include/lwip/lwip/ip4_napt.h
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96
tools/sdk/include/lwip/lwip/ip4_napt.h
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@ -0,0 +1,96 @@
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/**
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* @file ip4_napt.h
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* This is a private interface of ip4_napt used from ip4.c
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*
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* @see ip4_napt.c
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* original reassembly code by Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_IP4_NAPT_H
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#define LWIP_HDR_IP4_NAPT_H
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#include "lwip/opt.h"
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#if ESP_LWIP
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#if IP_FORWARD
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#if IP_NAPT
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#include "lwip/def.h"
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#include "lwip/pbuf.h"
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#include "lwip/ip4_addr.h"
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#include "lwip/err.h"
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#include "lwip/netif.h"
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#include "lwip/prot/ip4.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lwip/err.h"
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#include "lwip/ip4.h"
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/**
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* NAPT for a forwarded packet. It checks weather we need NAPT and modify
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* the packet source address and port if needed.
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*
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* @param p the packet to forward (p->payload points to IP header)
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* @param iphdr the IP header of the input packet
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* @param inp the netif on which this packet was received
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* @param outp the netif on which this packet will be sent
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* @return ERR_OK if packet should be sent, or ERR_RTE if it should be dropped
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*/
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err_t
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ip_napt_forward(struct pbuf *p, struct ip_hdr *iphdr, struct netif *inp, struct netif *outp);
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/**
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* NAPT for an input packet. It checks weather the destination is on NAPT
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* table and modify the packet destination address and port if needed.
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*
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* @param p the packet to forward (p->payload points to IP header)
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* @param iphdr the IP header of the input packet
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* @param inp the netif on which this packet was received
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*/
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void
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ip_napt_recv(struct pbuf *p, struct ip_hdr *iphdr);
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#ifdef __cplusplus
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}
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#endif
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#endif /* IP_NAPT */
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#endif /* IP_FORWARD */
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#endif /* ESP_LWIP */
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#endif /* LWIP_HDR_IP4_NAPT_H */
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122
tools/sdk/include/lwip/lwip/lwip_napt.h
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122
tools/sdk/include/lwip/lwip/lwip_napt.h
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@ -0,0 +1,122 @@
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/**
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* @file lwip_napt.h
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* public API of ip4_napt
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*
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* @see ip4_napt.c
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* original reassembly code by Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __LWIP_NAPT_H__
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#define __LWIP_NAPT_H__
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#include "lwip/opt.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if ESP_LWIP
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#if IP_FORWARD
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#if IP_NAPT
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/* Default size of the tables used for NAPT */
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#ifndef IP_NAPT_MAX
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#define IP_NAPT_MAX 512
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#endif
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#ifndef IP_PORTMAP_MAX
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#define IP_PORTMAP_MAX 32
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#endif
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/* Timeouts in sec for the various protocol types */
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#define IP_NAPT_TIMEOUT_MS_TCP (30*60*1000)
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#define IP_NAPT_TIMEOUT_MS_TCP_DISCON (20*1000)
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#define IP_NAPT_TIMEOUT_MS_UDP (2*1000)
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#define IP_NAPT_TIMEOUT_MS_ICMP (2*1000)
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#define IP_NAPT_PORT_RANGE_START 49152
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#define IP_NAPT_PORT_RANGE_END 61439
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/**
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* Enable/Disable NAPT for a specified interface.
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*
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* @param addr ip address of the interface
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* @param enable non-zero to enable NAPT, or 0 to disable.
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*/
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void
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ip_napt_enable(u32_t addr, int enable);
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/**
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* Enable/Disable NAPT for a specified interface.
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*
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* @param netif number of the interface
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* @param enable non-zero to enable NAPT, or 0 to disable.
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*/
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void
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ip_napt_enable_no(u8_t number, int enable);
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/**
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* Register port mapping on the external interface to internal interface.
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* When the same port mapping is registered again, the old mapping is overwritten.
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* In this implementation, only 1 unique port mapping can be defined for each target address/port.
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*
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* @param proto target protocol
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* @param maddr ip address of the external interface
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* @param mport mapped port on the external interface, in host byte order.
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* @param daddr destination ip address
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* @param dport destination port, in host byte order.
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*/
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u8_t
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ip_portmap_add(u8_t proto, u32_t maddr, u16_t mport, u32_t daddr, u16_t dport);
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/**
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* Unregister port mapping on the external interface to internal interface.
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*
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* @param proto target protocol
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* @param maddr ip address of the external interface
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*/
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u8_t
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ip_portmap_remove(u8_t proto, u16_t mport);
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#endif /* IP_NAPT */
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#endif /* IP_FORWARD */
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#endif /* ESP_LWIP */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIP_NAPT_H__ */
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@ -410,6 +410,11 @@ struct netif {
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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 */
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ip_addr_t last_ip_addr; /* Store last non-zero ip address */
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#endif
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#if ESP_LWIP
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#if LWIP_IPV4 && IP_NAPT
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u8_t napt;
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#endif
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#endif /* ESP_LWIP */
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};
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#if LWIP_CHECKSUM_CTRL_PER_NETIF
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#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \
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@ -767,6 +767,14 @@
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#define IP_FRAG 0
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#endif /* !LWIP_IPV4 */
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/**
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* IP_NAPT==1: Enables IPv4 Network Address and Port Translation
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* Note that IP_FORWARD needs to be enabled for NAPT to work
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*/
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#if !defined IP_NAPT || defined __DOXYGEN__
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#define IP_NAPT 0
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#endif
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/**
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* IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
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* IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
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@ -3525,6 +3533,13 @@
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#define LWIP_TESTMODE 0
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#endif
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/**
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* NAPT_DEBUG: Enable debugging for NAPT.
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*/
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#ifndef NAPT_DEBUG
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#define NAPT_DEBUG LWIP_DBG_OFF
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#endif
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/*
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--------------------------------------------------
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---------- Performance tracking options ----------
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