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Merge branch 'feature/add_dpp_support' into 'master'

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Add dpp support

Closes WIFI-1054 and WIFI-2627

See merge request espressif/esp-idf!8167
This commit is contained in:
Jiang Jiang Jian
2021-01-25 20:09:31 +08:00
parent 68916df92c 76b2cb28d2
commit 4fb9f5eeeb
30 changed files with 3101 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
components/esp_common/src/esp_err_to_name.c
View File

@ -44,6 +44,9 @@
#if __has_include("esp_spi_flash.h")
#include "esp_spi_flash.h"
#endif
#if __has_include("esp_supplicant/esp_dpp.h")
#include "esp_supplicant/esp_dpp.h"
#endif
#if __has_include("esp_supplicant/esp_wps.h")
#include "esp_supplicant/esp_wps.h"
#endif
@ -407,6 +410,16 @@ static const esp_err_msg_t esp_err_msg_table[] = {
# endif
# ifdef ESP_ERR_ESPNOW_IF
ERR_TBL_IT(ESP_ERR_ESPNOW_IF), /* 12396 0x306c Interface error */
# endif
// components/wpa_supplicant/include/esp_supplicant/esp_dpp.h
# ifdef ESP_ERR_DPP_FAILURE
ERR_TBL_IT(ESP_ERR_DPP_FAILURE), /* 12439 0x3097 Generic failure during DPP Operation */
# endif
# ifdef ESP_ERR_DPP_TX_FAILURE
ERR_TBL_IT(ESP_ERR_DPP_TX_FAILURE), /* 12440 0x3098 DPP Frame Tx failed OR not Acked */
# endif
# ifdef ESP_ERR_DPP_INVALID_ATTR
ERR_TBL_IT(ESP_ERR_DPP_INVALID_ATTR), /* 12441 0x3099 Encountered invalid DPP Attribute */
# endif
// components/esp_common/include/esp_err.h
# ifdef ESP_ERR_MESH_BASE

6
components/esp_event/event_send.c
View File

@ -85,6 +85,12 @@ static system_event_id_t esp_event_legacy_wifi_event_id(int32_t event_id)
case WIFI_EVENT_AP_PROBEREQRECVED:
return SYSTEM_EVENT_AP_PROBEREQRECVED;
case WIFI_EVENT_ACTION_TX_STATUS:
return SYSTEM_EVENT_ACTION_TX_STATUS;
case WIFI_EVENT_ROC_DONE:
return SYSTEM_EVENT_ROC_DONE;
default:
ESP_LOGE(TAG, "invalid wifi event id %d", event_id);
return SYSTEM_EVENT_MAX;

2
components/esp_event/include/esp_event_legacy.h
View File

@ -48,6 +48,8 @@ typedef enum {
SYSTEM_EVENT_AP_STADISCONNECTED, /*!< a station disconnected from ESP32 soft-AP */
SYSTEM_EVENT_AP_STAIPASSIGNED, /*!< ESP32 soft-AP assign an IP to a connected station */
SYSTEM_EVENT_AP_PROBEREQRECVED, /*!< Receive probe request packet in soft-AP interface */
SYSTEM_EVENT_ACTION_TX_STATUS, /*!< Receive status of Action frame transmitted */
SYSTEM_EVENT_ROC_DONE, /*!< Indicates the completion of Remain-on-Channel operation status */
SYSTEM_EVENT_GOT_IP6, /*!< ESP32 station or ap or ethernet interface v6IP addr is preferred */
SYSTEM_EVENT_ETH_START, /*!< ESP32 ethernet start */
SYSTEM_EVENT_ETH_STOP, /*!< ESP32 ethernet stop */

47
components/esp_wifi/include/esp_wifi_types.h
View File

@ -35,6 +35,12 @@ typedef enum {
WIFI_IF_AP = ESP_IF_WIFI_AP,
} wifi_interface_t;
#define WIFI_OFFCHAN_TX_REQ 1
#define WIFI_OFFCHAN_TX_CANCEL 0
#define WIFI_ROC_REQ 1
#define WIFI_ROC_CANCEL 0
typedef enum {
WIFI_COUNTRY_POLICY_AUTO, /**< Country policy is auto, use the country info of AP to which the station is connected */
WIFI_COUNTRY_POLICY_MANUAL, /**< Country policy is manual, always use the configured country info */
@ -483,6 +489,32 @@ typedef struct {
enabled_ant1: 4; /**< Index (in antenna GPIO configuration) of enabled WIFI_ANT_MODE_ANT1 */
} wifi_ant_config_t;
/**
* @brief The Rx callback function of Action Tx operations
*
* @param hdr pointer to the IEEE 802.11 Header structure
* @param payload pointer to the Payload following 802.11 Header
* @param len length of the Payload
* @param channel channel number the frame is received on
*
*/
typedef int (* wifi_action_rx_cb_t)(uint8_t *hdr, uint8_t *payload,
size_t len, uint8_t channel);
/**
* @brief Action Frame Tx Request
*
*
*/
typedef struct {
wifi_interface_t ifx; /**< WiFi interface to send request to */
uint8_t dest_mac[6]; /**< Destination MAC address */
bool no_ack; /**< Indicates no ack required */
wifi_action_rx_cb_t rx_cb; /**< Rx Callback to receive any response */
uint32_t data_len; /**< Length of the appended Data */
uint8_t data[0]; /**< Appended Data payload */
} wifi_action_tx_req_t;
/**
* @brief WiFi PHY rate encodings
*
@ -551,6 +583,8 @@ typedef enum {
/* Add next events after this only */
WIFI_EVENT_STA_BSS_RSSI_LOW, /**< AP's RSSI crossed configured threshold */
WIFI_EVENT_ACTION_TX_STATUS, /**< Status indication of Action Tx operation */
WIFI_EVENT_ROC_DONE, /**< Remain-on-Channel operation complete */
WIFI_EVENT_MAX, /**< Invalid WiFi event ID */
} wifi_event_t;
@ -645,6 +679,19 @@ typedef struct {
#define WIFI_STATIS_PS (1<<4)
#define WIFI_STATIS_ALL (-1)
/** Argument structure for WIFI_EVENT_ACTION_TX_STATUS event */
typedef struct {
wifi_interface_t ifx; /**< WiFi interface to send request to */
uint32_t context; /**< Context to identify the request */
uint8_t da[6]; /**< Destination MAC address */
uint8_t status; /**< Status of the operation */
} wifi_event_action_tx_status_t;
/** Argument structure for WIFI_EVENT_ROC_DONE event */
typedef struct {
uint32_t context; /**< Context to identify the request */
} wifi_event_roc_done_t;
#ifdef __cplusplus
}
#endif

2
components/esp_wifi/lib

Submodule components/esp_wifi/lib updated: 21001cb8ac...bad7d9df47

3
components/wpa_supplicant/CMakeLists.txt
View File

@ -18,7 +18,7 @@ set(srcs "port/os_xtensa.c"
"src/crypto/aes-omac1.c"
"src/crypto/aes-unwrap.c"
"src/crypto/aes-wrap.c"
"src/crypto/aes-omac1.c"
"src/crypto/sha256-tlsprf.c"
"src/crypto/bignum.c"
"src/crypto/ccmp.c"
"src/crypto/crypto_mbedtls.c"
@ -63,6 +63,7 @@ set(srcs "port/os_xtensa.c"
"src/esp_supplicant/esp_wpas_glue.c"
"src/esp_supplicant/esp_wps.c"
"src/esp_supplicant/esp_wpa3.c"
"src/esp_supplicant/esp_dpp.c"
"src/rsn_supp/pmksa_cache.c"
"src/rsn_supp/wpa.c"
"src/rsn_supp/wpa_ie.c"

116
components/wpa_supplicant/include/esp_supplicant/esp_dpp.h Normal file
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@ -0,0 +1,116 @@
// 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 ESP_DPP_H
#define ESP_DPP_H
#include <stdbool.h>
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ESP_ERR_DPP_FAILURE (ESP_ERR_WIFI_BASE + 151) /*!< Generic failure during DPP Operation */
#define ESP_ERR_DPP_TX_FAILURE (ESP_ERR_WIFI_BASE + 152) /*!< DPP Frame Tx failed OR not Acked */
#define ESP_ERR_DPP_INVALID_ATTR (ESP_ERR_WIFI_BASE + 153) /*!< Encountered invalid DPP Attribute */
/** @brief Types of Bootstrap Methods for DPP. */
typedef enum dpp_bootstrap_type {
DPP_BOOTSTRAP_QR_CODE, /**< QR Code Method */
DPP_BOOTSTRAP_PKEX, /**< Proof of Knowledge Method */
DPP_BOOTSTRAP_NFC_URI, /**< NFC URI record Method */
} esp_supp_dpp_bootstrap_t;
/** @brief Types of Callback Events received from DPP Supplicant. */
typedef enum {
ESP_SUPP_DPP_URI_READY, /**< URI is ready through Bootstrapping */
ESP_SUPP_DPP_CFG_RECVD, /**< Config received via DPP Authentication */
ESP_SUPP_DPP_FAIL, /**< DPP Authentication failure */
} esp_supp_dpp_event_t;
/**
* @brief Callback function for receiving DPP Events from Supplicant.
*
* Callback function will be called with DPP related information.
*
* @param evt DPP event ID
* @param data Event data payload
*/
typedef void (*esp_supp_dpp_event_cb_t)(esp_supp_dpp_event_t evt, void *data);
/**
* @brief Initialize DPP Supplicant
*
* Starts DPP Supplicant and initializes related Data Structures.
*
* @param evt_cb Callback function to receive DPP related events
*
* return
* - ESP_OK: Success
* - ESP_FAIL: Failure
*/
esp_err_t esp_supp_dpp_init(esp_supp_dpp_event_cb_t evt_cb);
/**
* @brief De-initalize DPP Supplicant
*
* Frees memory from DPP Supplicant Data Structures.
*/
void esp_supp_dpp_deinit(void);
/**
* @brief Generates Bootstrap Information as an Enrollee.
*
* Generates Out Of Band Bootstrap information as an Enrollee which can be
* used by a DPP Configurator to provision the Enrollee.
*
* @param chan_list List of channels device will be available on for listening
* @param type Bootstrap method type, only QR Code method is supported for now.
* @param key (Optional) Private Key used to generate a Bootstrapping Public Key
* @param info (Optional) Ancilliary Device Information like Serial Number
*
* @return
* - ESP_OK: Success
* - ESP_FAIL: Failure
*/
esp_err_t
esp_supp_dpp_bootstrap_gen(const char *chan_list, esp_supp_dpp_bootstrap_t type,
const char *key, const char *info);
/**
* @brief Start listening on Channels provided during esp_supp_dpp_bootstrap_gen.
*
* Listens on every Channel from Channel List for a pre-defined wait time.
*
* @return
* - ESP_OK: Success
* - ESP_FAIL: Generic Failure
* - ESP_ERR_INVALID_STATE: ROC attempted before WiFi is started
* - ESP_ERR_NO_MEM: Memory allocation failed while posting ROC request
*/
esp_err_t esp_supp_dpp_start_listen(void);
/**
* @brief Stop listening on Channels.
*
* Stops listening on Channels and cancels ongoing listen operation.
*/
void esp_supp_dpp_stop_listen(void);
#ifdef __cplusplus
}
#endif
#endif /* ESP_DPP_H */

40
components/wpa_supplicant/src/common/dpp.c
View File

@ -2397,7 +2397,7 @@ struct dpp_authentication *
dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
struct dpp_bootstrap_info *peer_bi,
struct dpp_bootstrap_info *own_bi,
unsigned int freq, const u8 *hdr, const u8 *attr_start,
unsigned int curr_chan, const u8 *hdr, const u8 *attr_start,
size_t attr_len)
{
struct crypto_key *pi = NULL;
@ -2406,10 +2406,16 @@ dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
size_t len[2];
u8 *unwrapped = NULL;
size_t unwrapped_len = 0;
const u8 *wrapped_data, *i_proto, *i_nonce, *i_capab, *i_bootstrap,
*channel;
u16 wrapped_data_len, i_proto_len, i_nonce_len, i_capab_len,
i_bootstrap_len, channel_len;
const u8 *wrapped_data;
const u8 *i_proto;
const u8 *i_nonce;
const u8 *i_capab;
const u8 *i_bootstrap;
u16 wrapped_data_len;
u16 i_proto_len;
u16 i_nonce_len;
u16 i_capab_len;
u16 i_bootstrap_len;
struct dpp_authentication *auth = NULL;
#ifdef CONFIG_WPA_TESTING_OPTIONS
@ -2438,10 +2444,11 @@ dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
auth->peer_bi = peer_bi;
auth->own_bi = own_bi;
auth->curve = own_bi->curve;
auth->curr_freq = freq;
auth->curr_chan = curr_chan;
auth->peer_version = 1; /* default to the first version */
#if 0
channel = dpp_get_attr(attr_start, attr_len, DPP_ATTR_CHANNEL,
&channel_len);
if (channel) {
@ -2452,7 +2459,6 @@ dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
goto fail;
}
#ifndef ESP_SUPPLICANT
neg_freq = ieee80211_chan_to_freq(NULL, channel[0], channel[1]);
wpa_printf(MSG_DEBUG,
"DPP: Initiator requested different channel for negotiation: op_class=%u channel=%u --> freq=%d",
@ -2469,10 +2475,10 @@ dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
freq, neg_freq);
auth->curr_freq = neg_freq;
}
#endif
/* rename it to chan */
auth->curr_freq = *channel;
auth->curr_chan = *channel;
}
#endif
i_proto = dpp_get_attr(attr_start, attr_len, DPP_ATTR_I_PROTOCOL_KEY,
&i_proto_len);
@ -5386,7 +5392,7 @@ fail:
int dpp_conf_resp_rx(struct dpp_authentication *auth,
const struct wpabuf *resp)
const uint8_t *resp, uint32_t resp_len)
{
const u8 *wrapped_data, *e_nonce, *status, *conf_obj;
u16 wrapped_data_len, e_nonce_len, status_len, conf_obj_len;
@ -5398,12 +5404,12 @@ int dpp_conf_resp_rx(struct dpp_authentication *auth,
auth->conf_resp_status = 255;
if (dpp_check_attrs(wpabuf_head(resp), wpabuf_len(resp)) < 0) {
if (dpp_check_attrs(resp, resp_len) < 0) {
dpp_auth_fail(auth, "Invalid attribute in config response");
return -1;
}
wrapped_data = dpp_get_attr(wpabuf_head(resp), wpabuf_len(resp),
wrapped_data = dpp_get_attr(resp, resp_len,
DPP_ATTR_WRAPPED_DATA,
&wrapped_data_len);
if (!wrapped_data || wrapped_data_len < AES_BLOCK_SIZE) {
@ -5419,8 +5425,8 @@ int dpp_conf_resp_rx(struct dpp_authentication *auth,
if (!unwrapped)
return -1;
addr[0] = wpabuf_head(resp);
len[0] = wrapped_data - 4 - (const u8 *) wpabuf_head(resp);
addr[0] = resp;
len[0] = wrapped_data - 4 - resp;
wpa_hexdump(MSG_DEBUG, "DDP: AES-SIV AD", addr[0], len[0]);
if (aes_siv_decrypt(auth->ke, auth->curve->hash_len,
@ -5451,7 +5457,7 @@ int dpp_conf_resp_rx(struct dpp_authentication *auth,
goto fail;
}
status = dpp_get_attr(wpabuf_head(resp), wpabuf_len(resp),
status = dpp_get_attr(resp, resp_len,
DPP_ATTR_STATUS, &status_len);
if (!status || status_len < 1) {
dpp_auth_fail(auth,
@ -6083,9 +6089,6 @@ int dpp_bootstrap_gen(struct dpp_global *dpp, const char *cmd)
int ret = -1;
struct dpp_bootstrap_info *bi;
if (!dpp)
return -1;
bi = os_zalloc(sizeof(*bi));
if (!bi)
goto fail;
@ -6143,6 +6146,7 @@ int dpp_bootstrap_gen(struct dpp_global *dpp, const char *cmd)
mac ? "M:" : "", mac ? mac : "", mac ? ";" : "",
info ? "I:" : "", info ? info : "", info ? ";" : "",
pk);
bi->id = dpp_next_id(dpp);
dl_list_add(&dpp->bootstrap, &bi->list);
ret = bi->id;

16
components/wpa_supplicant/src/common/dpp.h
View File

@ -13,8 +13,11 @@
#ifdef CONFIG_DPP
#include "utils/list.h"
#include "common/wpa_common.h"
#include "crypto/sha256.h"
#include "utils/includes.h"
#include "utils/common.h"
#include "esp_err.h"
#include "esp_dpp.h"
struct crypto_ecdh;
struct hostapd_ip_addr;
@ -147,12 +150,6 @@ struct dpp_curve_params {
const char *jws_alg;
};
enum dpp_bootstrap_type {
DPP_BOOTSTRAP_QR_CODE,
DPP_BOOTSTRAP_PKEX,
DPP_BOOTSTRAP_NFC_URI,
};
struct dpp_bootstrap_info {
struct dl_list list;
unsigned int id;
@ -258,6 +255,7 @@ struct dpp_authentication {
* Authentication exchange */
unsigned int freq[DPP_BOOTSTRAP_MAX_FREQ];
unsigned int num_freq, freq_idx;
unsigned int curr_chan;
unsigned int curr_freq;
unsigned int neg_freq;
unsigned int num_freq_iters;
@ -488,8 +486,8 @@ void dpp_auth_deinit(struct dpp_authentication *auth);
struct wpabuf *
dpp_conf_req_rx(struct dpp_authentication *auth, const u8 *attr_start,
size_t attr_len);
int dpp_conf_resp_rx(struct dpp_authentication *auth,
const struct wpabuf *resp);
int dpp_conf_resp_rx(struct dpp_authentication *auth, const u8 *resp,
u32 resp_len);
enum dpp_status_error dpp_conf_result_rx(struct dpp_authentication *auth,
const u8 *hdr,
const u8 *attr_start, size_t attr_len);

140
components/wpa_supplicant/src/common/ieee802_11_defs.h
View File

@ -263,6 +263,13 @@
#define WLAN_ACTION_UNPROTECTED_WNM 11
#define WLAN_ACTION_WMM 17 /* WMM Specification 1.1 */
/* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
#define WLAN_PA_VENDOR_SPECIFIC 9
#define WLAN_PA_GAS_INITIAL_REQ 10
#define WLAN_PA_GAS_INITIAL_RESP 11
#define WLAN_PA_GAS_COMEBACK_REQ 12
#define WLAN_PA_GAS_COMEBACK_RESP 13
/* SA Query Action frame (IEEE 802.11w/D8.0, 7.4.9) */
#define WLAN_SA_QUERY_REQUEST 0
#define WLAN_SA_QUERY_RESPONSE 1
@ -274,6 +281,8 @@
#define WLAN_TIMEOUT_KEY_LIFETIME 2
#define WLAN_TIMEOUT_ASSOC_COMEBACK 3
#define OUI_WFA 0x506f9a
#define DPP_OUI_TYPE 0x1A
#ifdef _MSC_VER
#pragma pack(push, 1)
@ -343,110 +352,37 @@ enum lci_req_subelem {
LCI_REQ_SUBELEM_MAX_AGE = 4,
};
struct ieee80211_mgmt {
le16 frame_control;
le16 duration;
u8 da[6];
u8 sa[6];
u8 bssid[6];
le16 seq_ctrl;
union {
struct {
le16 auth_alg;
le16 auth_transaction;
le16 status_code;
/* possibly followed by Challenge text */
u8 variable[0];
} STRUCT_PACKED auth;
struct {
le16 reason_code;
} STRUCT_PACKED deauth;
struct {
le16 capab_info;
le16 listen_interval;
/* followed by SSID and Supported rates */
u8 variable[0];
} STRUCT_PACKED assoc_req;
struct {
le16 capab_info;
le16 status_code;
le16 aid;
/* followed by Supported rates */
u8 variable[0];
} STRUCT_PACKED assoc_resp, reassoc_resp;
struct {
le16 capab_info;
le16 listen_interval;
u8 current_ap[6];
/* followed by SSID and Supported rates */
u8 variable[0];
} STRUCT_PACKED reassoc_req;
struct {
le16 reason_code;
} STRUCT_PACKED disassoc;
struct {
u8 timestamp[8];
le16 beacon_int;
le16 capab_info;
/* followed by some of SSID, Supported rates,
* FH Params, DS Params, CF Params, IBSS Params, TIM */
u8 variable[0];
} STRUCT_PACKED beacon;
struct {
/* only variable items: SSID, Supported rates */
u8 variable[0];
} STRUCT_PACKED probe_req;
struct {
u8 timestamp[8];
le16 beacon_int;
le16 capab_info;
/* followed by some of SSID, Supported rates,
* FH Params, DS Params, CF Params, IBSS Params */
u8 variable[0];
} STRUCT_PACKED probe_resp;
struct {
u8 category;
union {
struct {
u8 action_code;
u8 dialog_token;
u8 status_code;
u8 variable[0];
} STRUCT_PACKED wmm_action;
struct{
u8 action_code;
u8 element_id;
u8 length;
u8 switch_mode;
u8 new_chan;
u8 switch_count;
} STRUCT_PACKED chan_switch;
struct {
u8 action;
u8 sta_addr[ETH_ALEN];
u8 target_ap_addr[ETH_ALEN];
u8 variable[0]; /* FT Request */
} STRUCT_PACKED ft_action_req;
struct {
u8 action;
u8 sta_addr[ETH_ALEN];
u8 target_ap_addr[ETH_ALEN];
le16 status_code;
u8 variable[0]; /* FT Request */
} STRUCT_PACKED ft_action_resp;
struct {
u8 action;
u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
} STRUCT_PACKED sa_query_req;
struct {
u8 action; /* */
u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
} STRUCT_PACKED sa_query_resp;
} u;
} STRUCT_PACKED action;
} u;
#ifdef ESP_SUPPLICANT
struct ieee80211_pa_vendor {
u8 oui[3];
u8 wfa_stype;
u8 vendor_data[];
} STRUCT_PACKED;
struct ieee80211_gas_resp {
u8 diag_token;
u16 status_code;
u16 comeback_delay;
u8 type;
u8 length;
u8 data[];
} STRUCT_PACKED;
struct ieee80211_public_action {
u8 action;
union {
struct ieee80211_pa_vendor pa_vendor_spec;
struct ieee80211_gas_resp pa_gas_resp;
} v;
} STRUCT_PACKED;
struct ieee80211_action {
u8 category;
union {
struct ieee80211_public_action public_action;
} u;
} STRUCT_PACKED;
#endif /* ESP_SUPPLICANT */
#define IEEE80211_MAX_MMPDU_SIZE 2304
struct ieee80211_ht_capabilities {

648
components/wpa_supplicant/src/esp_supplicant/esp_dpp.c Normal file
View File

@ -0,0 +1,648 @@
// 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.
#include "esp_dpp_i.h"
#include "esp_dpp.h"
#include "esp_wpa.h"
#include "esp_timer.h"
#include "esp_event.h"
#include "esp_wifi.h"
#include "common/ieee802_11_defs.h"
static void *s_dpp_task_hdl = NULL;
static void *s_dpp_evt_queue = NULL;
static void *s_dpp_api_lock = NULL;
static bool s_dpp_stop_listening;
static int s_dpp_auth_retries;
struct esp_dpp_context_t s_dpp_ctx;
static wifi_action_rx_cb_t s_action_rx_cb = esp_supp_rx_action;
#define DPP_API_LOCK() xSemaphoreTakeRecursive(s_dpp_api_lock, portMAX_DELAY)
#define DPP_API_UNLOCK() xSemaphoreGiveRecursive(s_dpp_api_lock)
struct action_rx_param {
u8 sa[ETH_ALEN];
u32 channel;
u32 frm_len;
u32 vendor_data_len;
struct ieee80211_action *action_frm;
};
static int esp_dpp_post_evt(uint32_t evt_id, uint32_t data)
{
DPP_API_LOCK();
dpp_event_t *evt = os_zalloc(sizeof(dpp_event_t));
if (evt == NULL) {
DPP_API_UNLOCK();
return ESP_ERR_NO_MEM;
}
evt->id = evt_id;
evt->data = data;
if ( xQueueSend(s_dpp_evt_queue, &evt, 10 / portTICK_PERIOD_MS ) != pdPASS) {
DPP_API_UNLOCK();
os_free(evt);
return ESP_ERR_DPP_FAILURE;
}
DPP_API_UNLOCK();
return ESP_OK;
}
static void esp_dpp_call_cb(esp_supp_dpp_event_t evt, void *data)
{
s_dpp_ctx.dpp_event_cb(evt, data);
}
void esp_send_action_frame(uint8_t *dest_mac, const uint8_t *buf, uint32_t len,
uint8_t channel, uint32_t wait_time_ms)
{
wifi_action_tx_req_t *req = os_zalloc(sizeof(*req) + len);;
if (!req) {
return;
}
req->ifx = ESP_IF_WIFI_STA;
memcpy(req->dest_mac, dest_mac, ETH_ALEN);
req->no_ack = false;
req->data_len = len;
req->rx_cb = s_action_rx_cb;
memcpy(req->data, buf, req->data_len);
wpa_printf(MSG_DEBUG, "DPP: Mgmt Tx - MAC:" MACSTR ", Channel-%d, WaitT-%d",
MAC2STR(dest_mac), channel, wait_time_ms);
if (ESP_OK != esp_wifi_action_tx_req(WIFI_OFFCHAN_TX_REQ, channel,
wait_time_ms, req)) {
wpa_printf(MSG_ERROR, "DPP: Failed to perfrm offchannel operation");
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)ESP_ERR_DPP_TX_FAILURE);
os_free(req);
return;
}
os_free(req);
}
static void esp_dpp_rx_auth_req(struct action_rx_param *rx_param, uint8_t *dpp_data)
{
size_t len = rx_param->vendor_data_len - 2;
const u8 *r_bootstrap, *i_bootstrap;
u16 r_bootstrap_len, i_bootstrap_len;
struct dpp_bootstrap_info *own_bi;
int rc;
wpa_printf(MSG_INFO, "DPP: Authentication Request from " MACSTR, MAC2STR(rx_param->sa));
r_bootstrap = dpp_get_attr(dpp_data, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH,
&r_bootstrap_len);
if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) {
wpa_printf(MSG_INFO, "DPP: Missing or invalid Responder Bootstrapping Key Hash attribute");
rc = ESP_ERR_DPP_INVALID_ATTR;
goto fail;
}
wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash", r_bootstrap, r_bootstrap_len);
i_bootstrap = dpp_get_attr(dpp_data, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH,
&i_bootstrap_len);
if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) {
wpa_printf(MSG_INFO, "DPP: Missing or invalid Initiator Bootstrapping Key Hash attribute");
rc = ESP_ERR_DPP_INVALID_ATTR;
goto fail;
}
wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash", i_bootstrap, i_bootstrap_len);
own_bi = dpp_bootstrap_get_id(s_dpp_ctx.dpp_global, s_dpp_ctx.id);
/* Try to find own and peer bootstrapping key matches based on the
* received hash values */
if (os_memcmp(own_bi->pubkey_hash, r_bootstrap, SHA256_MAC_LEN)) {
wpa_printf(MSG_INFO, "DPP: No matching own bootstrapping key found as responder - ignore message");
rc = ESP_ERR_DPP_INVALID_ATTR;
goto fail;
}
s_dpp_ctx.dpp_auth = dpp_auth_req_rx(NULL, DPP_CAPAB_ENROLLEE, 0, NULL,
own_bi, rx_param->channel,
(const u8 *)&rx_param->action_frm->u.public_action.v, dpp_data, len);
os_memcpy(s_dpp_ctx.dpp_auth->peer_mac_addr, rx_param->sa, ETH_ALEN);
esp_send_action_frame(rx_param->sa, wpabuf_head(s_dpp_ctx.dpp_auth->resp_msg),
wpabuf_len(s_dpp_ctx.dpp_auth->resp_msg),
rx_param->channel, OFFCHAN_TX_WAIT_TIME);
return;
fail:
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)rc);
}
static void gas_query_req_tx(struct dpp_authentication *auth)
{
struct wpabuf *buf;
int supp_op_classes[] = {81, 0};
buf = dpp_build_conf_req_helper(auth, NULL, 0, NULL,
supp_op_classes);
if (!buf) {
wpa_printf(MSG_DEBUG, "DPP: No configuration request data available");
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)ESP_ERR_DPP_FAILURE);
return;
}
wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (chan %u)",
MAC2STR(auth->peer_mac_addr), auth->curr_chan);
esp_send_action_frame(auth->peer_mac_addr, wpabuf_head(buf), wpabuf_len(buf),
auth->curr_chan, OFFCHAN_TX_WAIT_TIME);
}
static int esp_dpp_handle_config_obj(struct dpp_authentication *auth,
struct dpp_config_obj *conf)
{
wifi_config_t *wifi_cfg = &s_dpp_ctx.wifi_cfg;
if (conf->ssid_len) {
os_memcpy(wifi_cfg->sta.ssid, conf->ssid, conf->ssid_len);
}
if (dpp_akm_legacy(conf->akm)) {
if (conf->passphrase[0])
os_memcpy(wifi_cfg->sta.password, conf->passphrase,
sizeof(wifi_cfg->sta.password));
if (conf->akm == DPP_AKM_PSK_SAE) {
wifi_cfg->sta.pmf_cfg.capable = true;
wifi_cfg->sta.pmf_cfg.required = true;
}
}
if (conf->connector) {
/* TODO: Save the Connector and consider using a command
* to fetch the value instead of sending an event with
* it. The Connector could end up being larger than what
* most clients are ready to receive as an event
* message. */
wpa_printf(MSG_INFO, DPP_EVENT_CONNECTOR "%s",
conf->connector);
}
s_dpp_stop_listening = false;
esp_wifi_action_tx_req(WIFI_OFFCHAN_TX_CANCEL, 0, 0, NULL);
esp_dpp_call_cb(ESP_SUPP_DPP_CFG_RECVD, wifi_cfg);
return 0;
}
static void esp_dpp_rx_auth_conf(struct action_rx_param *rx_param, uint8_t *dpp_data)
{
struct dpp_authentication *auth = s_dpp_ctx.dpp_auth;
struct ieee80211_public_action *public_action =
&rx_param->action_frm->u.public_action;
size_t len = rx_param->vendor_data_len - 2;
int rc;
wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR,
MAC2STR(rx_param->sa));
if (!auth) {
wpa_printf(MSG_DEBUG, "DPP: No DPP Authentication in progress - drop");
rc = ESP_ERR_DPP_FAILURE;
goto fail;
}
if (os_memcmp(rx_param->sa, auth->peer_mac_addr, ETH_ALEN) != 0) {
wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
rc = ESP_ERR_DPP_FAILURE;
goto fail;
}
if (dpp_auth_conf_rx(auth, (const u8 *)&public_action->v,
dpp_data, len) < 0) {
wpa_printf(MSG_DEBUG, "DPP: Authentication failed");
rc = ESP_ERR_DPP_FAILURE;
goto fail;
}
/* Send GAS Query Req */
gas_query_req_tx(auth);
return;
fail:
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)rc);
}
static void esp_dpp_rx_auth(struct action_rx_param *rx_param)
{
uint8_t crypto_suit, type;
uint8_t *tmp;
tmp = rx_param->action_frm->u.public_action.v.pa_vendor_spec.vendor_data;
crypto_suit = tmp[0];
type = tmp[1];
if (crypto_suit != 1) {
wpa_printf(MSG_ERROR, "DPP: Unsupported crypto suit");
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)ESP_ERR_NOT_SUPPORTED);
return;
}
switch (type) {
case DPP_PA_AUTHENTICATION_REQ:
esp_dpp_rx_auth_req(rx_param, &tmp[2]);
break;
case DPP_PA_AUTHENTICATION_CONF:
esp_dpp_rx_auth_conf(rx_param, &tmp[2]);
break;
}
}
static void gas_query_resp_rx(struct action_rx_param *rx_param)
{
struct dpp_authentication *auth = s_dpp_ctx.dpp_auth;
uint8_t *pos = rx_param->action_frm->u.public_action.v.pa_gas_resp.data;
uint8_t *resp = &pos[10];
int i, res;
if (pos[1] == WLAN_EID_VENDOR_SPECIFIC && pos[2] == 5 &&
WPA_GET_BE24(&pos[3]) == OUI_WFA && pos[6] == 0x1a && pos[7] == 1) {
if (dpp_conf_resp_rx(auth, resp, rx_param->vendor_data_len - 2) < 0) {
wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
goto fail;
}
for (i = 0; i < auth->num_conf_obj; i++) {
res = esp_dpp_handle_config_obj(auth, &auth->conf_obj[i]);
if (res < 0) {
goto fail;
}
}
}
return;
fail:
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)ESP_ERR_DPP_FAILURE);
}
static void esp_dpp_rx_action(struct action_rx_param *rx_param)
{
if (rx_param->action_frm->category == WLAN_ACTION_PUBLIC) {
struct ieee80211_public_action *public_action =
&rx_param->action_frm->u.public_action;
wpa_printf(MSG_DEBUG, "DPP: Rx Public Action frame: action - %d",
public_action->action);
if (public_action->action == WLAN_PA_VENDOR_SPECIFIC &&
WPA_GET_BE24(public_action->v.pa_vendor_spec.oui) == OUI_WFA &&
public_action->v.pa_vendor_spec.wfa_stype == DPP_OUI_TYPE) {
rx_param->vendor_data_len = rx_param->frm_len -
(size_t)(public_action->v.pa_vendor_spec.vendor_data -
(u8 *)rx_param->action_frm);
if (!s_dpp_stop_listening) {
esp_supp_dpp_stop_listen();
}
esp_dpp_rx_auth(rx_param);
} else if (public_action->action == WLAN_PA_GAS_INITIAL_RESP &&
public_action->v.pa_gas_resp.type == WLAN_EID_ADV_PROTO &&
public_action->v.pa_gas_resp.length == 8 &&
public_action->v.pa_gas_resp.status_code == 0) {
rx_param->vendor_data_len = rx_param->frm_len -
(size_t)(public_action->v.pa_gas_resp.data +
public_action->v.pa_gas_resp.length -
(u8 *)rx_param->action_frm);
gas_query_resp_rx(rx_param);
}
}
os_free(rx_param->action_frm);
os_free(rx_param);
}
static void esp_dpp_task(void *pvParameters )
{
dpp_event_t *evt;
bool task_del = false;
for (;;) {
if (xQueueReceive(s_dpp_evt_queue, &evt, portMAX_DELAY) == pdTRUE) {
if (evt->id < SIG_DPP_MAX) {
DPP_API_LOCK();
} else {
os_free(evt);
continue;
}
switch (evt->id) {
case SIG_DPP_DEL_TASK:
task_del = true;
break;
case SIG_DPP_BOOTSTRAP_GEN: {
char *command = (char *)evt->data;
const char *uri;
s_dpp_ctx.id = dpp_bootstrap_gen(s_dpp_ctx.dpp_global, command);
uri = dpp_bootstrap_get_uri(s_dpp_ctx.dpp_global, s_dpp_ctx.id);
esp_dpp_call_cb(ESP_SUPP_DPP_URI_READY, (void *)uri);
os_free(command);
}
break;
case SIG_DPP_RX_ACTION: {
esp_dpp_rx_action((struct action_rx_param *)evt->data);
}
break;
case SIG_DPP_LISTEN_NEXT_CHANNEL: {
struct dpp_bootstrap_params_t *p = &s_dpp_ctx.bootstrap_params;
static int counter;
int channel;
channel = p->chan_list[counter++ % p->num_chan];
esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, channel,
BOOTSTRAP_ROC_WAIT_TIME, s_action_rx_cb);
}
break;
default:
break;
}
os_free(evt);
DPP_API_UNLOCK();
if (task_del) {
break;
}
}
}
vQueueDelete(s_dpp_evt_queue);
s_dpp_evt_queue = NULL;
if (s_dpp_api_lock) {
vSemaphoreDelete(s_dpp_api_lock);
s_dpp_api_lock = NULL;
}
/* At this point, we completed */
vTaskDelete(NULL);
}
int esp_supp_rx_action(uint8_t *hdr, uint8_t *payload, size_t len, uint8_t channel)
{
struct ieee80211_hdr *rx_hdr = (struct ieee80211_hdr *)hdr;
struct action_rx_param *rx_param;
if (WLAN_FC_GET_STYPE(rx_hdr->frame_control) == WLAN_FC_STYPE_ACTION) {
rx_param = os_zalloc(sizeof(struct action_rx_param));
os_memcpy(rx_param->sa, rx_hdr->addr2, ETH_ALEN);
rx_param->channel = channel;
rx_param->action_frm = os_zalloc(len);
rx_param->frm_len = len;
os_memcpy(rx_param->action_frm, payload, len);
if (ESP_OK != esp_dpp_post_evt(SIG_DPP_RX_ACTION, (u32)rx_param)) {
os_free(rx_param->action_frm);
os_free(rx_param);
}
}
return ESP_ERR_NOT_SUPPORTED;
}
static void offchan_event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
if (event_id == WIFI_EVENT_ACTION_TX_STATUS) {
wifi_event_action_tx_status_t *evt =
(wifi_event_action_tx_status_t *)event_data;
wpa_printf(MSG_DEBUG, "Mgmt Tx Status - %d, Cookie - 0x%x",
evt->status, (uint32_t)evt->context);
if (evt->status) {
esp_dpp_call_cb(ESP_SUPP_DPP_FAIL, (void *)ESP_ERR_DPP_TX_FAILURE);
}
} else if (event_id == WIFI_EVENT_ROC_DONE) {
wifi_event_roc_done_t *evt = (wifi_event_roc_done_t *)event_data;
if (!s_dpp_stop_listening && evt->context == (uint32_t)s_action_rx_cb) {
esp_dpp_post_evt(SIG_DPP_LISTEN_NEXT_CHANNEL, 0);
}
}
}
static char *esp_dpp_parse_chan_list(const char *chan_list)
{
struct dpp_bootstrap_params_t *params = &s_dpp_ctx.bootstrap_params;
char *uri_channels = os_zalloc(14 * 6 + 1);
const char *pos = chan_list;
const char *pos2;
char *pos3 = uri_channels;
params->num_chan = 0;
os_memcpy(pos3, " chan=", strlen(" chan="));
pos3 += strlen(" chan=");
while (pos && *pos) {
int channel;
int len = strlen(chan_list);
pos2 = pos;
while (*pos2 >= '0' && *pos2 <= '9') {
pos2++;
}
if (*pos2 == ',' || *pos2 == ' ' || *pos2 == '\0') {
channel = atoi(pos);
if (channel < 1 || channel > 14) {
os_free(uri_channels);
return NULL;
}
params->chan_list[params->num_chan++] = channel;
os_memcpy(pos3, "81/", strlen("81/"));
pos3 += strlen("81/");
os_memcpy(pos3, pos, (pos2 - pos));
pos3 += (pos2 - pos);
*pos3++ = ',';
pos = pos2 + 1;
}
while (*pos == ',' || *pos == ' ' || *pos == '\0') {
pos++;
}
if (((int)(pos - chan_list) >= len)) {
break;
}
}
*(pos3 - 1) = ' ';
return uri_channels;
}
esp_err_t
esp_supp_dpp_bootstrap_gen(const char *chan_list, enum dpp_bootstrap_type type,
const char *key, const char *uri_info)
{
struct dpp_bootstrap_params_t *params = &s_dpp_ctx.bootstrap_params;
char *uri_chan_list = esp_dpp_parse_chan_list(chan_list);
char *command = os_zalloc(1200);
int ret;
if (!uri_chan_list || !command || params->num_chan >= 14 || params->num_chan == 0) {
wpa_printf(MSG_ERROR, "Invalid Channel list - %s", chan_list);
if (command) {
os_free(command);
}
ret = ESP_ERR_DPP_FAILURE;
goto fail;
}
if (type != DPP_BOOTSTRAP_QR_CODE) {
wpa_printf(MSG_INFO, "Bootstrap type %d not supported", type);
os_free(command);
ret = ESP_ERR_NOT_SUPPORTED;
goto fail;
}
params->type = type;
esp_wifi_get_mac(ESP_IF_WIFI_STA, params->mac);
if (uri_info) {
params->info_len = strlen(uri_info);
if (params->info_len) {
params->info = os_zalloc(params->info_len + 1);
if (!params->info) {
os_free(command);
ret = ESP_ERR_NO_MEM;
goto fail;
}
os_memcpy(params->info, uri_info, params->info_len);
}
}
if (key) {
params->key_len = strlen(key);
if (params->key_len) {
char prefix[] = "30310201010420";
char postfix[] = "a00a06082a8648ce3d030107";
params->key = os_zalloc(params->key_len +
sizeof(prefix) + sizeof(postfix));
if (!params->key) {
os_free(command);
ret = ESP_ERR_NO_MEM;
goto fail;
}
sprintf(params->key, "%s%s%s", prefix, key, postfix);
}
}
sprintf(command, "type=qrcode mac=" MACSTR "%s%s%s%s%s",
MAC2STR(params->mac), uri_chan_list,
params->key_len ? "key=" : "",
params->key_len ? params->key : "",
params->info_len ? " info=" : "",
params->info_len ? params->info : "");
ret = esp_dpp_post_evt(SIG_DPP_BOOTSTRAP_GEN, (u32)command);
if (ret != ESP_OK) {
os_free(command);
if (params->info) {
os_free(params->info);
params->info = NULL;
}
if (params->key) {
os_free(params->key);
params->key = NULL;
}
goto fail;
}
ret = ESP_OK;
fail:
if (uri_chan_list) {
os_free(uri_chan_list);
}
return ret;
}
esp_err_t esp_supp_dpp_start_listen(void)
{
if (esp_wifi_get_user_init_flag_internal() == 0) {
wpa_printf(MSG_ERROR, "DPP: ROC not possible before wifi is started");
return ESP_ERR_INVALID_STATE;
}
return esp_dpp_post_evt(SIG_DPP_LISTEN_NEXT_CHANNEL, 0);
}
void esp_supp_dpp_stop_listen(void)
{
s_dpp_stop_listening = true;
esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_CANCEL, 0, 0, NULL);
}
esp_err_t esp_supp_dpp_init(esp_supp_dpp_event_cb_t cb)
{
struct dpp_global_config cfg = {0};
os_bzero(&s_dpp_ctx, sizeof(s_dpp_ctx));
s_dpp_ctx.dpp_event_cb = cb;
cfg.cb_ctx = &s_dpp_ctx;
cfg.msg_ctx = &s_dpp_ctx;
s_dpp_ctx.dpp_global = dpp_global_init(&cfg);
s_dpp_stop_listening = false;
s_dpp_evt_queue = xQueueCreate(3, sizeof(dpp_event_t));
xTaskCreate(esp_dpp_task, "dppT", DPP_TASK_STACK_SIZE, NULL, 2, s_dpp_task_hdl);
s_dpp_api_lock = xSemaphoreCreateRecursiveMutex();
if (!s_dpp_api_lock) {
wpa_printf(MSG_ERROR, "DPP: dpp_init: failed to create DPP API lock");
return ESP_ERR_NO_MEM;
}
esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_ACTION_TX_STATUS,
&offchan_event_handler, NULL);
esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_ROC_DONE,
&offchan_event_handler, NULL);
wpa_printf(MSG_INFO, "esp_dpp_task prio:%d, stack:%d\n", 2, DPP_TASK_STACK_SIZE);
return ESP_OK;
}
void esp_supp_dpp_deinit(void)
{
struct dpp_bootstrap_params_t *params = &s_dpp_ctx.bootstrap_params;
if (params->info) {
os_free(params->info);
params->info = NULL;
}
if (params->key) {
os_free(params->key);
params->key = NULL;
}
s_dpp_auth_retries = 0;
dpp_global_deinit(s_dpp_ctx.dpp_global);
esp_dpp_post_evt(SIG_DPP_DEL_TASK, 0);
}

68
components/wpa_supplicant/src/esp_supplicant/esp_dpp_i.h Normal file
View File

@ -0,0 +1,68 @@
// 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 ESP_DPP_I_H
#define ESP_DPP_I_H
#include "esp_err.h"
#include "utils/includes.h"
#include "utils/common.h"
#include "common/dpp.h"
#include "esp_dpp.h"
#include "esp_wifi_driver.h"
#define DPP_TASK_STACK_SIZE (6144 + TASK_STACK_SIZE_ADD)
enum SIG_DPP {
SIG_DPP_RESET = 0,
SIG_DPP_BOOTSTRAP_GEN,
SIG_DPP_RX_ACTION,
SIG_DPP_LISTEN_NEXT_CHANNEL,
SIG_DPP_DEL_TASK,
SIG_DPP_MAX,
};
typedef struct {
uint32_t id;
uint32_t data;
} dpp_event_t;
#define BOOTSTRAP_ROC_WAIT_TIME 500
#define OFFCHAN_TX_WAIT_TIME 500
struct dpp_bootstrap_params_t {
enum dpp_bootstrap_type type;
uint8_t chan_list[14];
uint8_t num_chan;
uint8_t mac[6];
uint32_t key_len;
char *key;
uint32_t info_len;
char *info;
};
struct esp_dpp_context_t {
struct dpp_bootstrap_params_t bootstrap_params;
struct dpp_authentication *dpp_auth;
int gas_dialog_token;
esp_supp_dpp_event_cb_t dpp_event_cb;
struct dpp_global *dpp_global;
wifi_config_t wifi_cfg;
int id;
};
int esp_supp_rx_action(uint8_t *hdr, uint8_t *payload, size_t len, uint8_t channel);
#endif /* ESP_DPP_I_H */

4
components/wpa_supplicant/src/esp_supplicant/esp_wifi_driver.h
View File

@ -261,5 +261,9 @@ bool esp_wifi_is_btm_enabled_internal(uint8_t if_index);
esp_err_t esp_wifi_register_mgmt_frame_internal(uint32_t type, uint32_t subtype);
esp_err_t esp_wifi_send_mgmt_frm_internal(const wifi_mgmt_frm_req_t *req);
uint8_t esp_wifi_ap_get_prof_pairwise_cipher_internal(void);
esp_err_t esp_wifi_action_tx_req(uint8_t type, uint8_t channel,
uint32_t wait_time_ms, const wifi_action_tx_req_t *req);
esp_err_t esp_wifi_remain_on_channel(uint8_t ifx, uint8_t type, uint8_t channel,
uint32_t wait_time_ms, wifi_action_rx_cb_t rx_cb);
#endif /* _ESP_WIFI_DRIVER_H_ */

245
components/wpa_supplicant/test/test_offchannel.c Normal file
View File

@ -0,0 +1,245 @@
// 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.
#include "string.h"
#include "esp_system.h"
#include "unity.h"
#include "esp_system.h"
#include "esp_event.h"
#include "esp_wifi_types.h"
#include "utils/common.h"
#include "common/ieee802_11_defs.h"
#include "../src/esp_supplicant/esp_wifi_driver.h"
#include "esp_log.h"
#include "test_utils.h"
#include "freertos/event_groups.h"
#define WIFI_START_EVENT 0x00000001
#define WIFI_ROC_DONE_EVENT 0x00000002
#define WIFI_ACTION_RX_EVENT 0x00000003
#define WIFI_SCAN_DONE_EVENT 0x00000004
#define TEST_LISTEN_CHANNEL 6
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)
static const char *TAG = "test_offchan";
esp_netif_t *wifi_netif;
static EventGroupHandle_t wifi_event;
static void wifi_event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
switch (event_id) {
case WIFI_EVENT_STA_START:
ESP_LOGI(TAG, "WIFI Started");
xEventGroupSetBits(wifi_event, WIFI_START_EVENT);
break;
case WIFI_EVENT_ACTION_TX_STATUS: {
wifi_event_action_tx_status_t *evt =
(wifi_event_action_tx_status_t *)event_data;
if (evt->status == 0) {
ESP_LOGI(TAG, "Action Tx Successful");
}
}
break;
case WIFI_EVENT_ROC_DONE:
ESP_LOGI(TAG, "ROC Done");
xEventGroupSetBits(wifi_event, WIFI_ROC_DONE_EVENT);
break;
case WIFI_EVENT_SCAN_DONE:
ESP_LOGI(TAG, "Scan Done");
xEventGroupSetBits(wifi_event, WIFI_SCAN_DONE_EVENT);
break;
default:
break;
}
return;
}
static esp_err_t event_init(void)
{
ESP_ERROR_CHECK(esp_event_loop_create_default());
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
wifi_netif = esp_netif_create_default_wifi_sta();
return ESP_OK;
}
static void start_wifi_as_sta(void)
{
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
cfg.nvs_enable = false;
event_init();
// can't deinit event loop, need to reset leak check
unity_reset_leak_checks();
if (wifi_event == NULL) {
wifi_event = xEventGroupCreate();
} else {
xEventGroupClearBits(wifi_event, 0x00ffffff);
}
TEST_ESP_OK(esp_wifi_init(&cfg));
TEST_ESP_OK(esp_wifi_set_mode(WIFI_MODE_STA));
TEST_ESP_OK(esp_wifi_start());
}
static void stop_wifi(void)
{
esp_event_loop_delete_default();
ESP_LOGI(TAG, "Stop wifi\n");
TEST_ESP_OK(esp_wifi_stop());
TEST_ESP_OK(esp_wifi_deinit());
esp_wifi_clear_default_wifi_driver_and_handlers(wifi_netif);
esp_netif_destroy(wifi_netif);
if (wifi_event) {
vEventGroupDelete(wifi_event);
wifi_event = NULL;
}
vTaskDelay(1000 / portTICK_PERIOD_MS);
}
int dummy_rx_action(uint8_t *hdr, uint8_t *payload, size_t len, uint8_t channel)
{
return ESP_OK;
}
static const char *frame_data = "This is a test data";
void esp_send_action_frame(uint8_t *dest_mac, const uint8_t *buf, uint32_t len,
uint8_t channel, uint32_t wait_time_ms)
{
wifi_action_tx_req_t *req = os_zalloc(sizeof(*req) + len);;
TEST_ASSERT( req != NULL);
req->ifx = ESP_IF_WIFI_STA;
memcpy(req->dest_mac, dest_mac, ETH_ALEN);
req->no_ack = false;
req->data_len = len;
req->rx_cb = dummy_rx_action;
memcpy(req->data, buf, req->data_len);
ESP_LOGI(TAG, "Action Tx - MAC:" MACSTR ", Channel-%d, WaitT-%d",
MAC2STR(dest_mac), channel, wait_time_ms);
TEST_ESP_OK(esp_wifi_action_tx_req(WIFI_OFFCHAN_TX_REQ, channel, wait_time_ms, req));
os_free(req);
}
/* Test that foreground Scan doesn't pre-empt ROC & vice versa */
TEST_CASE("Test scan and ROC simultaneously", "[Offchan]")
{
wifi_action_rx_cb_t rx_cb = dummy_rx_action;
EventBits_t bits;
test_case_uses_tcpip();
start_wifi_as_sta();
xEventGroupWaitBits(wifi_event, WIFI_START_EVENT, 1, 0, 5000 / portTICK_RATE_MS);
TEST_ESP_OK(esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, TEST_LISTEN_CHANNEL,
100, rx_cb));
ESP_ERROR_CHECK(esp_wifi_scan_start(NULL, false));
bits = xEventGroupWaitBits(wifi_event, WIFI_ROC_DONE_EVENT | WIFI_SCAN_DONE_EVENT,
pdTRUE, pdFALSE, 5000 / portTICK_RATE_MS);
TEST_ASSERT_TRUE(bits == WIFI_ROC_DONE_EVENT);
vTaskDelay(1000 / portTICK_PERIOD_MS);
ESP_ERROR_CHECK(esp_wifi_scan_start(NULL, false));
TEST_ESP_OK(esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, TEST_LISTEN_CHANNEL,
100, rx_cb));
bits = xEventGroupWaitBits(wifi_event, WIFI_ROC_DONE_EVENT | WIFI_SCAN_DONE_EVENT,
pdTRUE, pdFALSE, 5000 / portTICK_RATE_MS);
TEST_ASSERT_TRUE(bits == WIFI_SCAN_DONE_EVENT);
stop_wifi();
}
static void test_wifi_offchan_tx(void)
{
int i;
char mac_str[19];
uint8_t mac[6];
test_case_uses_tcpip();
start_wifi_as_sta();
xEventGroupWaitBits(wifi_event, WIFI_START_EVENT, 1, 0, 5000 / portTICK_RATE_MS);
unity_wait_for_signal_param("Listener mac", mac_str, 19);
TEST_ASSERT_TRUE(unity_util_convert_mac_from_string(mac_str, mac));
for (i = 0; i < 3; i++) {
esp_send_action_frame(mac, (const uint8_t *)frame_data, strlen(frame_data),
TEST_LISTEN_CHANNEL, 500);
vTaskDelay(500 / portTICK_PERIOD_MS);
}
stop_wifi();
}
static int test_rx_action(uint8_t *hdr, uint8_t *payload, size_t len, uint8_t channel)
{
struct ieee80211_hdr *rx_hdr = (struct ieee80211_hdr *)hdr;
ESP_LOGI(TAG, "Rxd Action Frame from " MACSTR " (Seq-%lu)", MAC2STR(rx_hdr->addr2),
WLAN_GET_SEQ_SEQ(rx_hdr->seq_ctrl));
if (!os_memcmp(payload, frame_data, strlen(frame_data))) {
xEventGroupSetBits(wifi_event, WIFI_ACTION_RX_EVENT);
}
return ESP_OK;
}
static void test_wifi_roc(void)
{
wifi_action_rx_cb_t rx_cb = test_rx_action;
char mac_str[19] = {0};
EventBits_t bits;
uint8_t mac[6];
test_case_uses_tcpip();
start_wifi_as_sta();
xEventGroupWaitBits(wifi_event, WIFI_START_EVENT, 1, 0, 5000 / portTICK_RATE_MS);
TEST_ESP_OK(esp_wifi_get_mac(ESP_IF_WIFI_STA, mac));
sprintf(mac_str, MACSTR, MAC2STR(mac));
unity_send_signal_param("Listener mac", mac_str);
TEST_ESP_OK(esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, TEST_LISTEN_CHANNEL,
10000, rx_cb));
bits = xEventGroupWaitBits(wifi_event, WIFI_ROC_DONE_EVENT | WIFI_ACTION_RX_EVENT,
pdTRUE, pdFALSE, portMAX_DELAY);
/* Confirm that Frame has been received successfully */
if (bits == WIFI_ACTION_RX_EVENT) {
TEST_ESP_OK(esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_CANCEL, 0, 0, NULL));
vTaskDelay(1000 / portTICK_PERIOD_MS);
stop_wifi();
} else {
stop_wifi();
TEST_FAIL();
}
}
TEST_CASE_MULTIPLE_DEVICES("test ROC and Offchannel Action Frame Tx", "[Offchan][test_env=UT_T2_1][timeout=90]", test_wifi_roc, test_wifi_offchan_tx);
#endif //!TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)

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@ -67,6 +67,8 @@ These third party libraries can be included into the application (firmware) prod
* :component_file:` TLSF allocator <heap/heap_tlsf.c>` Two Level Segregated Fit memory allocator, Copyright (c) 2006-2016, Matthew Conte, and licensed under the BSD license.
* `qrcode`_ QR Code generator library Copyright (c) Project Nayuki, is licensed under MIT license.
Build Tools
-----------
@ -179,3 +181,4 @@ Copyright (C) 2011, ChaN, all right reserved.
.. _sphinx_idf_theme: https://github.com/espressif/sphinx_idf_theme
.. _sphinx_rtd_theme: https://github.com/readthedocs/sphinx_rtd_theme
.. _cryptoauthlib: https://github.com/MicrochipTech/cryptoauthlib
.. _qrcode: https://github.com/nayuki/QR-Code-generator

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idf_component_register(SRCS "esp_qrcode_main.c" "esp_qrcode_wrapper.c" "qrcodegen.c"
INCLUDE_DIRS "include"
)

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# QR Code generator component
This directory contains a QR code generator component written in C. This component is based on [QR-Code-generator](https://github.com/nayuki/QR-Code-generator).
This component is used as part of the following ESP-IDF examples:
- [DPP Enrollee Example](../../wifi/wifi_easy_connect/dpp-enrollee/).
To learn more about how to use this component, please check API Documentation from header file [qrcode.h](./include/qrcode.h).
Please note that this component is not considered to be a part of ESP-IDF stable API. It may change and may be removed in the future releases.

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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.
#include <stdio.h>
#include <esp_err.h>
#include "esp_log.h"
#include "qrcodegen.h"
#include "qrcode.h"
static const char *TAG = "QRCODE";
static const char *lt[] = {
/* 0 */ " ",
/* 1 */ "\u2580 ",
/* 2 */ " \u2580",
/* 3 */ "\u2580\u2580",
/* 4 */ "\u2584 ",
/* 5 */ "\u2588 ",
/* 6 */ "\u2584\u2580",
/* 7 */ "\u2588\u2580",
/* 8 */ " \u2584",
/* 9 */ "\u2580\u2584",
/* 10 */ " \u2588",
/* 11 */ "\u2580\u2588",
/* 12 */ "\u2584\u2584",
/* 13 */ "\u2588\u2584",
/* 14 */ "\u2584\u2588",
/* 15 */ "\u2588\u2588",
};
void esp_qrcode_print_console(esp_qrcode_handle_t qrcode)
{
int size = qrcodegen_getSize(qrcode);
int border = 2;
unsigned char num = 0;
for (int y = -border; y < size + border; y+=2) {
for (int x = -border; x < size + border; x+=2) {
num = 0;
if (qrcodegen_getModule(qrcode, x, y)) {
num |= 1 << 0;
}
if ((x < size + border) && qrcodegen_getModule(qrcode, x+1, y)) {
num |= 1 << 1;
}
if ((y < size + border) && qrcodegen_getModule(qrcode, x, y+1)) {
num |= 1 << 2;
}
if ((x < size + border) && (y < size + border) && qrcodegen_getModule(qrcode, x+1, y+1)) {
num |= 1 << 3;
}
printf("%s", lt[num]);
}
printf("\n");
}
printf("\n");
}
esp_err_t esp_qrcode_generate(esp_qrcode_config_t *cfg, const char *text)
{
enum qrcodegen_Ecc ecc_lvl;
uint8_t *qrcode, *tempbuf;
esp_err_t err = ESP_FAIL;
qrcode = calloc(1, qrcodegen_BUFFER_LEN_FOR_VERSION(cfg->max_qrcode_version));
if (!qrcode) {
return ESP_ERR_NO_MEM;
}
tempbuf = calloc(1, qrcodegen_BUFFER_LEN_FOR_VERSION(cfg->max_qrcode_version));
if (!tempbuf) {
free(qrcode);
return ESP_ERR_NO_MEM;
}
switch(cfg->qrcode_ecc_level) {
case ESP_QRCODE_ECC_LOW:
ecc_lvl = qrcodegen_Ecc_LOW;
break;
case ESP_QRCODE_ECC_MED:
ecc_lvl = qrcodegen_Ecc_MEDIUM;
break;
case ESP_QRCODE_ECC_QUART:
ecc_lvl = qrcodegen_Ecc_QUARTILE;
break;
case ESP_QRCODE_ECC_HIGH:
ecc_lvl = qrcodegen_Ecc_HIGH;
break;
default:
ecc_lvl = qrcodegen_Ecc_LOW;
break;
}
ESP_LOGI(TAG, "Encoding below text with ECC LVL %d & QR Code Version %d",
ecc_lvl, cfg->max_qrcode_version);
ESP_LOGI(TAG, "%s", text);
// Make and print the QR Code symbol
bool ok = qrcodegen_encodeText(text, tempbuf, qrcode, ecc_lvl,
qrcodegen_VERSION_MIN, cfg->max_qrcode_version,
qrcodegen_Mask_AUTO, true);
if (ok && cfg->display_func) {
cfg->display_func((esp_qrcode_handle_t)qrcode);
err = ESP_OK;
}
free(qrcode);
free(tempbuf);
return err;
}

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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.
#include <stdio.h>
#include <esp_err.h>
#include "qrcodegen.h"
#include "qrcode.h"
int esp_qrcode_get_size(esp_qrcode_handle_t qrcode)
{
return qrcodegen_getSize(qrcode);
}
bool esp_qrcode_get_module(esp_qrcode_handle_t qrcode, int x, int y)
{
return qrcodegen_getModule(qrcode, x, y);
}

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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.
#pragma once
#include <esp_err.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief QR Code handle used by the display function
*/
typedef const uint8_t * esp_qrcode_handle_t;
/**
* @brief QR Code configuration options
*/
typedef struct {
void (*display_func)(esp_qrcode_handle_t qrcode); /**< Function called for displaying the QR Code after encoding is complete */
int max_qrcode_version; /**< Max QR Code Version to be used. Range: 2 - 40 */
int qrcode_ecc_level; /**< Error Correction Level for QR Code */
} esp_qrcode_config_t;
/**
* @brief Error Correction Level in a QR Code Symbol
*/
enum {
ESP_QRCODE_ECC_LOW, /**< QR Code Error Tolerance of 7% */
ESP_QRCODE_ECC_MED, /**< QR Code Error Tolerance of 15% */
ESP_QRCODE_ECC_QUART, /**< QR Code Error Tolerance of 25% */
ESP_QRCODE_ECC_HIGH /**< QR Code Error Tolerance of 30% */
};
/**
* @brief Encodes the given string into a QR Code and calls the display function
*
* @attention 1. Can successfully encode a UTF-8 string of up to 2953 bytes or an alphanumeric
* string of up to 4296 characters or any digit string of up to 7089 characters
*
* @param cfg Configuration used for QR Code encoding.
* @param text String to encode into a QR Code.
*
* @return
* - ESP_OK: succeed
* - ESP_FAIL: Failed to encode string into a QR Code
* - ESP_ERR_NO_MEM: Failed to allocate buffer for given max_qrcode_version
*/
esp_err_t esp_qrcode_generate(esp_qrcode_config_t *cfg, const char *text);
/**
* @brief Displays QR Code on the console
*
* @param qrcode QR Code handle used by the display function.
*/
void esp_qrcode_print_console(esp_qrcode_handle_t qrcode);
/**
* @brief Returns the side length of the given QR Code
*
* @param qrcode QR Code handle used by the display function.
*
* @return
* - val[21, 177]: Side length of QR Code
*/
int esp_qrcode_get_size(esp_qrcode_handle_t qrcode);
/**
* @brief Returns the Pixel value for the given coordinates
* False indicates White and True indicates Black
*
* @attention 1. Coordinates for top left corner are (x=0, y=0)
* @attention 2. For out of bound coordinates false (White) is returned
*
* @param qrcode QR Code handle used by the display function.
* @param x X-Coordinate of QR Code module
* @param y Y-Coordinate of QR Code module
*
* @return
* - true: (x, y) Pixel is Black
* - false: (x, y) Pixel is White
*/
bool esp_qrcode_get_module(esp_qrcode_handle_t qrcode, int x, int y);
#define ESP_QRCODE_CONFIG_DEFAULT() (esp_qrcode_config_t) { \
.display_func = esp_qrcode_print_console, \
.max_qrcode_version = 10, \
.qrcode_ecc_level = ESP_QRCODE_ECC_LOW, \
}
#ifdef __cplusplus
}
#endif

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/*
* QR Code generator library (C)
*
* Copyright (c) Project Nayuki. (MIT License)
* https://www.nayuki.io/page/qr-code-generator-library
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
* - The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* - The Software is provided "as is", without warranty of any kind, express or
* implied, including but not limited to the warranties of merchantability,
* fitness for a particular purpose and noninfringement. In no event shall the
* authors or copyright holders be liable for any claim, damages or other
* liability, whether in an action of contract, tort or otherwise, arising from,
* out of or in connection with the Software or the use or other dealings in the
* Software.
*/
#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* This library creates QR Code symbols, which is a type of two-dimension barcode.
* Invented by Denso Wave and described in the ISO/IEC 18004 standard.
* A QR Code structure is an immutable square grid of black and white cells.
* The library provides functions to create a QR Code from text or binary data.
* The library covers the QR Code Model 2 specification, supporting all versions (sizes)
* from 1 to 40, all 4 error correction levels, and 4 character encoding modes.
*
* Ways to create a QR Code object:
* - High level: Take the payload data and call qrcodegen_encodeText() or qrcodegen_encodeBinary().
* - Low level: Custom-make the list of segments and call
* qrcodegen_encodeSegments() or qrcodegen_encodeSegmentsAdvanced().
* (Note that all ways require supplying the desired error correction level and various byte buffers.)
*/
/*---- Enum and struct types----*/
/*
* The error correction level in a QR Code symbol.
*/
enum qrcodegen_Ecc {
// Must be declared in ascending order of error protection
// so that an internal qrcodegen function works properly
qrcodegen_Ecc_LOW = 0 , // The QR Code can tolerate about 7% erroneous codewords
qrcodegen_Ecc_MEDIUM , // The QR Code can tolerate about 15% erroneous codewords
qrcodegen_Ecc_QUARTILE, // The QR Code can tolerate about 25% erroneous codewords
qrcodegen_Ecc_HIGH , // The QR Code can tolerate about 30% erroneous codewords
};
/*
* The mask pattern used in a QR Code symbol.
*/
enum qrcodegen_Mask {
// A special value to tell the QR Code encoder to
// automatically select an appropriate mask pattern
qrcodegen_Mask_AUTO = -1,
// The eight actual mask patterns
qrcodegen_Mask_0 = 0,
qrcodegen_Mask_1,
qrcodegen_Mask_2,
qrcodegen_Mask_3,
qrcodegen_Mask_4,
qrcodegen_Mask_5,
qrcodegen_Mask_6,
qrcodegen_Mask_7,
};
/*
* Describes how a segment's data bits are interpreted.
*/
enum qrcodegen_Mode {
qrcodegen_Mode_NUMERIC = 0x1,
qrcodegen_Mode_ALPHANUMERIC = 0x2,
qrcodegen_Mode_BYTE = 0x4,
qrcodegen_Mode_KANJI = 0x8,
qrcodegen_Mode_ECI = 0x7,
};
/*
* A segment of character/binary/control data in a QR Code symbol.
* The mid-level way to create a segment is to take the payload data
* and call a factory function such as qrcodegen_makeNumeric().
* The low-level way to create a segment is to custom-make the bit buffer
* and initialize a qrcodegen_Segment struct with appropriate values.
* Even in the most favorable conditions, a QR Code can only hold 7089 characters of data.
* Any segment longer than this is meaningless for the purpose of generating QR Codes.
* Moreover, the maximum allowed bit length is 32767 because
* the largest QR Code (version 40) has 31329 modules.
*/
struct qrcodegen_Segment {
// The mode indicator of this segment.
enum qrcodegen_Mode mode;
// The length of this segment's unencoded data. Measured in characters for
// numeric/alphanumeric/kanji mode, bytes for byte mode, and 0 for ECI mode.
// Always zero or positive. Not the same as the data's bit length.
int numChars;
// The data bits of this segment, packed in bitwise big endian.
// Can be null if the bit length is zero.
uint8_t *data;
// The number of valid data bits used in the buffer. Requires
// 0 <= bitLength <= 32767, and bitLength <= (capacity of data array) * 8.
// The character count (numChars) must agree with the mode and the bit buffer length.
int bitLength;
};
/*---- Macro constants and functions ----*/
#define qrcodegen_VERSION_MIN 1 // The minimum version number supported in the QR Code Model 2 standard
#define qrcodegen_VERSION_MAX 40 // The maximum version number supported in the QR Code Model 2 standard
// Calculates the number of bytes needed to store any QR Code up to and including the given version number,
// as a compile-time constant. For example, 'uint8_t buffer[qrcodegen_BUFFER_LEN_FOR_VERSION(25)];'
// can store any single QR Code from version 1 to 25 (inclusive). The result fits in an int (or int16).
// Requires qrcodegen_VERSION_MIN <= n <= qrcodegen_VERSION_MAX.
#define qrcodegen_BUFFER_LEN_FOR_VERSION(n) ((((n) * 4 + 17) * ((n) * 4 + 17) + 7) / 8 + 1)
// The worst-case number of bytes needed to store one QR Code, up to and including
// version 40. This value equals 3918, which is just under 4 kilobytes.
// Use this more convenient value to avoid calculating tighter memory bounds for buffers.
#define qrcodegen_BUFFER_LEN_MAX qrcodegen_BUFFER_LEN_FOR_VERSION(qrcodegen_VERSION_MAX)
/*---- Functions (high level) to generate QR Codes ----*/
/*
* Encodes the given text string to a QR Code, returning true if encoding succeeded.
* If the data is too long to fit in any version in the given range
* at the given ECC level, then false is returned.
* - The input text must be encoded in UTF-8 and contain no NULs.
* - The variables ecl and mask must correspond to enum constant values.
* - Requires 1 <= minVersion <= maxVersion <= 40.
* - The arrays tempBuffer and qrcode must each have a length
* of at least qrcodegen_BUFFER_LEN_FOR_VERSION(maxVersion).
* - After the function returns, tempBuffer contains no useful data.
* - If successful, the resulting QR Code may use numeric,
* alphanumeric, or byte mode to encode the text.
* - In the most optimistic case, a QR Code at version 40 with low ECC
* can hold any UTF-8 string up to 2953 bytes, or any alphanumeric string
* up to 4296 characters, or any digit string up to 7089 characters.
* These numbers represent the hard upper limit of the QR Code standard.
* - Please consult the QR Code specification for information on
* data capacities per version, ECC level, and text encoding mode.
*/
bool qrcodegen_encodeText(const char *text, uint8_t tempBuffer[], uint8_t qrcode[],
enum qrcodegen_Ecc ecl, int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
/*
* Encodes the given binary data to a QR Code, returning true if encoding succeeded.
* If the data is too long to fit in any version in the given range
* at the given ECC level, then false is returned.
* - The input array range dataAndTemp[0 : dataLen] should normally be
* valid UTF-8 text, but is not required by the QR Code standard.
* - The variables ecl and mask must correspond to enum constant values.
* - Requires 1 <= minVersion <= maxVersion <= 40.
* - The arrays dataAndTemp and qrcode must each have a length
* of at least qrcodegen_BUFFER_LEN_FOR_VERSION(maxVersion).
* - After the function returns, the contents of dataAndTemp may have changed,
* and does not represent useful data anymore.
* - If successful, the resulting QR Code will use byte mode to encode the data.
* - In the most optimistic case, a QR Code at version 40 with low ECC can hold any byte
* sequence up to length 2953. This is the hard upper limit of the QR Code standard.
* - Please consult the QR Code specification for information on
* data capacities per version, ECC level, and text encoding mode.
*/
bool qrcodegen_encodeBinary(uint8_t dataAndTemp[], size_t dataLen, uint8_t qrcode[],
enum qrcodegen_Ecc ecl, int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl);
/*---- Functions (low level) to generate QR Codes ----*/
/*
* Renders a QR Code representing the given segments at the given error correction level.
* The smallest possible QR Code version is automatically chosen for the output. Returns true if
* QR Code creation succeeded, or false if the data is too long to fit in any version. The ECC level
* of the result may be higher than the ecl argument if it can be done without increasing the version.
* This function allows the user to create a custom sequence of segments that switches
* between modes (such as alphanumeric and byte) to encode text in less space.
* This is a low-level API; the high-level API is qrcodegen_encodeText() and qrcodegen_encodeBinary().
* To save memory, the segments' data buffers can alias/overlap tempBuffer, and will
* result in them being clobbered, but the QR Code output will still be correct.
* But the qrcode array must not overlap tempBuffer or any segment's data buffer.
*/
bool qrcodegen_encodeSegments(const struct qrcodegen_Segment segs[], size_t len,
enum qrcodegen_Ecc ecl, uint8_t tempBuffer[], uint8_t qrcode[]);
/*
* Renders a QR Code representing the given segments with the given encoding parameters.
* Returns true if QR Code creation succeeded, or false if the data is too long to fit in the range of versions.
* The smallest possible QR Code version within the given range is automatically
* chosen for the output. Iff boostEcl is true, then the ECC level of the result
* may be higher than the ecl argument if it can be done without increasing the
* version. The mask is either between qrcodegen_Mask_0 to 7 to force that mask, or
* qrcodegen_Mask_AUTO to automatically choose an appropriate mask (which may be slow).
* This function allows the user to create a custom sequence of segments that switches
* between modes (such as alphanumeric and byte) to encode text in less space.
* This is a low-level API; the high-level API is qrcodegen_encodeText() and qrcodegen_encodeBinary().
* To save memory, the segments' data buffers can alias/overlap tempBuffer, and will
* result in them being clobbered, but the QR Code output will still be correct.
* But the qrcode array must not overlap tempBuffer or any segment's data buffer.
*/
bool qrcodegen_encodeSegmentsAdvanced(const struct qrcodegen_Segment segs[], size_t len, enum qrcodegen_Ecc ecl,
int minVersion, int maxVersion, enum qrcodegen_Mask mask, bool boostEcl, uint8_t tempBuffer[], uint8_t qrcode[]);
/*
* Tests whether the given string can be encoded as a segment in alphanumeric mode.
* A string is encodable iff each character is in the following set: 0 to 9, A to Z
* (uppercase only), space, dollar, percent, asterisk, plus, hyphen, period, slash, colon.
*/
bool qrcodegen_isAlphanumeric(const char *text);
/*
* Tests whether the given string can be encoded as a segment in numeric mode.
* A string is encodable iff each character is in the range 0 to 9.
*/
bool qrcodegen_isNumeric(const char *text);
/*
* Returns the number of bytes (uint8_t) needed for the data buffer of a segment
* containing the given number of characters using the given mode. Notes:
* - Returns SIZE_MAX on failure, i.e. numChars > INT16_MAX or
* the number of needed bits exceeds INT16_MAX (i.e. 32767).
* - Otherwise, all valid results are in the range [0, ceil(INT16_MAX / 8)], i.e. at most 4096.
* - It is okay for the user to allocate more bytes for the buffer than needed.
* - For byte mode, numChars measures the number of bytes, not Unicode code points.
* - For ECI mode, numChars must be 0, and the worst-case number of bytes is returned.
* An actual ECI segment can have shorter data. For non-ECI modes, the result is exact.
*/
size_t qrcodegen_calcSegmentBufferSize(enum qrcodegen_Mode mode, size_t numChars);
/*
* Returns a segment representing the given binary data encoded in
* byte mode. All input byte arrays are acceptable. Any text string
* can be converted to UTF-8 bytes and encoded as a byte mode segment.
*/
struct qrcodegen_Segment qrcodegen_makeBytes(const uint8_t data[], size_t len, uint8_t buf[]);
/*
* Returns a segment representing the given string of decimal digits encoded in numeric mode.
*/
struct qrcodegen_Segment qrcodegen_makeNumeric(const char *digits, uint8_t buf[]);
/*
* Returns a segment representing the given text string encoded in alphanumeric mode.
* The characters allowed are: 0 to 9, A to Z (uppercase only), space,
* dollar, percent, asterisk, plus, hyphen, period, slash, colon.
*/
struct qrcodegen_Segment qrcodegen_makeAlphanumeric(const char *text, uint8_t buf[]);
/*
* Returns a segment representing an Extended Channel Interpretation
* (ECI) designator with the given assignment value.
*/
struct qrcodegen_Segment qrcodegen_makeEci(long assignVal, uint8_t buf[]);
/*---- Functions to extract raw data from QR Codes ----*/
/*
* Returns the side length of the given QR Code, assuming that encoding succeeded.
* The result is in the range [21, 177]. Note that the length of the array buffer
* is related to the side length - every 'uint8_t qrcode[]' must have length at least
* qrcodegen_BUFFER_LEN_FOR_VERSION(version), which equals ceil(size^2 / 8 + 1).
*/
int qrcodegen_getSize(const uint8_t qrcode[]);
/*
* Returns the color of the module (pixel) at the given coordinates, which is false
* for white or true for black. The top left corner has the coordinates (x=0, y=0).
* If the given coordinates are out of bounds, then false (white) is returned.
*/
bool qrcodegen_getModule(const uint8_t qrcode[], int x, int y);
#ifdef __cplusplus
}
#endif

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# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/qrcode)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(dpp-enrollee)

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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := dpp-enrollee
EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/qrcode
include $(IDF_PATH)/make/project.mk

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# Device Provisioning Protocol (Enrollee) Example
This example shows how to configure ESP32 as an enrollee using Device Provisioning Protocol(DPP) also known as Wi-Fi Easy Connect.
DPP provides a simple and secure way to onboard ESP32 to a network.
We now support Responder-Enrollee mode of DPP with PSK mode of authentication.
You need a Wi-Fi Easy Connect with Initiator mode capable device to make use of this example. Some Android 10+ devices have this capability. (Vendor specific)
To run the example with an Android 10+ device follow below steps -
1. Compile and flash the example on ESP32, a QR code will appear on your console.
2. Connect your phone to the network, say named "Example-AP".
3. Now go to Settings->WiFi & Internet->Wi-Fi->Example-AP->Advanced->Add Device.
4. Scan QR Code using the scanner, which will make ESP32 connect to Example-AP.
Optional configuration available
*Note:*
- QR Code should be displayed as dark on a white/light background to work properly.
- If displayed QR Code had line gaps, try switching to a new font or a diiferent Terminal program. See below QR Code for for checking beforehand.
### Example output
Here is an example of the console output.
```
I (807) wifi:mode : sta (24:0a:c4:23:da:20)
I (807) wifi dpp-enrollee: Started listening on Channel 11 for DPP Authentication
I (1157) wifi dpp-enrollee: Scan below QR Code to configure the enrollee:
█▀▀▀▀▀█ ██▄▄▄█▄▀██▄▄█▄ ▀ ▀▄ █▄▄ █▀▀▀▀▀█
█ ███ █ ██▀█▀ ▀▀██▀█▄█▀▄▀ ██▀▀█ ▄ █ ███ █
█ ▀▀▀ █ ▄█▀▄▄ ▄▄▀ █▄▀ ▄ ▄ ▄▀▄ ██ █ ▀▀▀ █
▀▀▀▀▀▀▀ ▀ █▄▀ ▀ ▀▄▀▄▀▄▀ █ ▀ ▀▄█ ▀ ▀▀▀▀▀▀▀
█▀ ▄██▀ ▄█ ▀█ ▄▀▄▄▄ ▀▀█▄ ▄▀█▄█▀▀▄▄▄▀▄██▀█
█▄▀ ▄ ▀▄█▄ ▀▀█▀▀█ ▀▄ ▄█▀▀▀▀█▀▄▄▄ ██▄ ▄█
▀█▀█▀ ▀▀ ▀ ▄▀▄▀▀ ▄ ▄▀▀▀ █▄ ▄▄ ▀█▄▀▄ █
▀ ▀ ▀▀▀█▄ █▀▀ █▄▄▄ █▄ █▄▀ ██▄ ▄▄▀█▄▀ ▄█
▀██▀▄█▀▄ ▄█ ▀▄▀ █ ▄ ▄█▄▀▄▀▄▄▀▄ ▄▄▄▀▄▄
▀▀▄█▀█▄▀▀█▄ ▄▀ █▄ ▀█▄█▄▀ ▀█▄▄ ▄▀▄ █▄▀ █
▄▀▀ ▀█▀▀▀ ▄ ▀█▀▀▄ ▀ ▄▄█▄ █ ██▀▄▀▀▄▄▄▄█▀▄
▀ ███▀▀▄ ▄ ▄ ▀█▄▄▀█▀▀▀ ▀▀▄▄ ▀ █▄ ▄█
█ ▀▄▄ ▀▀▀▀▄▀▀▀▄█▄▄ ▄▀▄▀ ▀▄▀▄▀█▀▀▄▀ ▄█▄▀
███ ▄▀▄▀▀▄▀▀█▀▀▄ ▀▄ ████ █▀▄█▄▄ ▀█▄ ▀▀ ▀
▄▀█▀▀▀▀█▀ ▄█▄▀▀ ▄ ▀█▀▀ ▀ ▄▀▀ ▀▄█ ▄ ▀
█ ▀▀▀▄██▄█▀ ▀█▄█▄ ▀██▀▄▀▄▀ █▀ ▀ ▄▄▀█ ▄█
▀▀▀ ▀▀▀▀▄▄█▄▀█▄ ▄ ▄ ▀▀▀█▄▄▀▀▀ █▀▀▀██▀▀▄
█▀▀▀▀▀█ ▄▄▀█▀ ▄█▄█▄▄█▄ ▀ ▀▀▀█▄ ▀█ ▀ █ ▀ █
█ ███ █ ▀█▀ ▀█▀▀▄▄▀ ▀▄█▀▀ ██▀█▀▀▀█▀▄▄▄█
█ ▀▀▀ █ ▄▀█ ▄ ▄ ▀█▄ ▀▄▀█ ▀▄██▄ ▀ ▄█ ▄▀▄█
▀▀▀▀▀▀▀ ▀ ▀ ▀ ▀ ▀▀▀ ▀▀▀▀▀ ▀ ▀ ▀
I (6357) wifi dpp-enrollee: DPP Authentication successful, connecting to AP : DigitalFortress
I (6477) wifi:new:<1,0>, old:<1,0>, ap:<255,255>, sta:<1,0>, prof:1
I (7277) wifi:state: init -> auth (b0)
I (7277) wifi:state: auth -> assoc (0)
I (7287) wifi:state: assoc -> run (10)
I (7317) wifi:connected with DigitalFortress, aid = 4, channel 1, BW20, bssid = 04:d4:c4:5e:22:f0
I (7317) wifi:security type: 3, phy: bgn, rssi: -60
I (7427) wifi:pm start, type: 1
I (7427) wifi:AP's beacon interval = 102400 us, DTIM period = 1
I (11617) esp_netif_handlers: sta ip: 192.168.1.216, mask: 255.255.255.0, gw: 192.168.1.1
I (11617) wifi dpp-enrollee: got ip:192.168.1.216
I (11617) wifi dpp-enrollee: connected to ap SSID:DigitalFortress password:password
```

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idf_component_register(SRCS "dpp_enrollee_main.c"
INCLUDE_DIRS ".")

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menu "Example Configuration"
config ESP_DPP_LISTEN_CHANNEL_LIST
string "DPP Listen channel list"
default "6"
help
DPP Bootstrapping listen channels separated by commas.
config ESP_DPP_BOOTSTRAPPING_KEY
string "Bootstrapping key"
help
Private key string for DPP Bootstrapping in PEM format.
config ESP_DPP_DEVICE_INFO
string "Additional Device Info"
help
Additional ancillary information to be included in QR Code.
endmenu

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#
# Main component makefile.
#
# This Makefile can be left empty. By default, it will take the sources in the
# src/ directory, compile them and link them into lib(subdirectory_name).a
# in the build directory. This behaviour is entirely configurable,
# please read the ESP-IDF documents if you need to do this.
#

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/* DPP Enrollee Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
#include "esp_system.h"
#include "esp_wifi.h"
#include "esp_event.h"
#include "esp_dpp.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "qrcode.h"
#ifdef CONFIG_ESP_DPP_LISTEN_CHANNEL
#define EXAMPLE_DPP_LISTEN_CHANNEL_LIST CONFIG_ESP_DPP_LISTEN_CHANNEL_LIST
#else
#define EXAMPLE_DPP_LISTEN_CHANNEL_LIST "6"
#endif
#ifdef CONFIG_ESP_DPP_BOOTSTRAPPING_KEY
#define EXAMPLE_DPP_BOOTSTRAPPING_KEY CONFIG_ESP_DPP_BOOTSTRAPPING_KEY
#else
#define EXAMPLE_DPP_BOOTSTRAPPING_KEY 0
#endif
#ifdef CONFIG_ESP_DPP_DEVICE_INFO
#define EXAMPLE_DPP_DEVICE_INFO CONFIG_ESP_DPP_DEVICE_INFO
#else
#define EXAMPLE_DPP_DEVICE_INFO 0
#endif
static const char *TAG = "wifi dpp-enrollee";
wifi_config_t s_dpp_wifi_config;
static int s_retry_num = 0;
/* FreeRTOS event group to signal when we are connected*/
static EventGroupHandle_t s_dpp_event_group;
#define DPP_CONNECTED_BIT BIT0
#define DPP_CONNECT_FAIL_BIT BIT1
#define DPP_AUTH_FAIL_BIT BIT2
static void event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
ESP_ERROR_CHECK(esp_supp_dpp_start_listen());
ESP_LOGI(TAG, "Started listening for DPP Authentication");
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
if (s_retry_num < 5) {
esp_wifi_connect();
s_retry_num++;
ESP_LOGI(TAG, "retry to connect to the AP");
} else {
xEventGroupSetBits(s_dpp_event_group, DPP_CONNECT_FAIL_BIT);
}
ESP_LOGI(TAG, "connect to the AP fail");
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
s_retry_num = 0;
xEventGroupSetBits(s_dpp_event_group, DPP_CONNECTED_BIT);
}
}
void dpp_enrollee_event_cb(esp_supp_dpp_event_t event, void *data)
{
switch (event) {
case ESP_SUPP_DPP_URI_READY:
if (data != NULL) {
esp_qrcode_config_t cfg = ESP_QRCODE_CONFIG_DEFAULT();
ESP_LOGI(TAG, "Scan below QR Code to configure the enrollee:\n");
esp_qrcode_generate(&cfg, (const char *)data);
}
break;
case ESP_SUPP_DPP_CFG_RECVD:
memcpy(&s_dpp_wifi_config, data, sizeof(s_dpp_wifi_config));
esp_wifi_set_config(ESP_IF_WIFI_STA, &s_dpp_wifi_config);
ESP_LOGI(TAG, "DPP Authentication successful, connecting to AP : %s",
s_dpp_wifi_config.sta.ssid);
s_retry_num = 0;
esp_wifi_connect();
break;
case ESP_SUPP_DPP_FAIL:
if (s_retry_num < 5) {
ESP_LOGI(TAG, "DPP Auth failed (Reason: %s), retry...", esp_err_to_name((int)data));
ESP_ERROR_CHECK(esp_supp_dpp_start_listen());
s_retry_num++;
} else {
xEventGroupSetBits(s_dpp_event_group, DPP_AUTH_FAIL_BIT);
}
break;
default:
break;
}
}
void dpp_enrollee_init(void)
{
s_dpp_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_create_default_wifi_sta();
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_supp_dpp_init(dpp_enrollee_event_cb));
/* Currently only supported method is QR Code */
ESP_ERROR_CHECK(esp_supp_dpp_bootstrap_gen(EXAMPLE_DPP_LISTEN_CHANNEL_LIST, DPP_BOOTSTRAP_QR_CODE,
EXAMPLE_DPP_BOOTSTRAPPING_KEY, EXAMPLE_DPP_DEVICE_INFO));
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_start());
/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
EventBits_t bits = xEventGroupWaitBits(s_dpp_event_group,
DPP_CONNECTED_BIT | DPP_CONNECT_FAIL_BIT | DPP_AUTH_FAIL_BIT,
pdFALSE,
pdFALSE,
portMAX_DELAY);
/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
* happened. */
if (bits & DPP_CONNECTED_BIT) {
ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
s_dpp_wifi_config.sta.ssid, s_dpp_wifi_config.sta.password);
} else if (bits & DPP_CONNECT_FAIL_BIT) {
ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
s_dpp_wifi_config.sta.ssid, s_dpp_wifi_config.sta.password);
} else if (bits & DPP_AUTH_FAIL_BIT) {
ESP_LOGI(TAG, "DPP Authentication failed after %d retries", s_retry_num);
} else {
ESP_LOGE(TAG, "UNEXPECTED EVENT");
}
esp_supp_dpp_deinit();
ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler));
ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler));
vEventGroupDelete(s_dpp_event_group);
}
void app_main(void)
{
//Initialize NVS
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
dpp_enrollee_init();
}