mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
659306b243
While using esp_wifi_set_config, flag pmf_capable defaults to 0. Users may not bother to enable it, which prevents connection to a WPA3 AP. Or the AP may reset into WPA3 mode failing the re-connection. To ensure better security, deprecate the pmf_capable flag and set it to true internally.
563 lines
20 KiB
C
563 lines
20 KiB
C
// Copyright 2015-2020 The Apache Software Foundation
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// Modifications Copyright 2017-2020 Espressif Systems (Shanghai) CO., LTD.
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//
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// Portions of this software were developed at Runtime Inc, copyright 2015.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp_log.h"
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#include "nvs_flash.h"
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/* BLE */
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#include "esp_nimble_hci.h"
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#include "nimble/nimble_port.h"
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#include "nimble/nimble_port_freertos.h"
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#include "host/ble_hs.h"
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#include "host/util/util.h"
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#include "console/console.h"
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#include "services/gap/ble_svc_gap.h"
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#include "bleprph.h"
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/* WIFI */
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "ping/ping_sock.h"
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#include "lwip/err.h"
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#include "lwip/sys.h"
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#include "lwip/inet.h"
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#include "lwip/netdb.h"
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#include "lwip/sockets.h"
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#define EXAMPLE_ESP_WIFI_SSID CONFIG_EXAMPLE_ESP_WIFI_SSID
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#define EXAMPLE_ESP_WIFI_PASS CONFIG_EXAMPLE_ESP_WIFI_PASSWORD
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#define EXAMPLE_ESP_MAXIMUM_RETRY CONFIG_EXAMPLE_ESP_MAXIMUM_RETRY
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#define EXAMPLE_PING_IP CONFIG_EXAMPLE_ESP_PING_IP
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#define EXAMPLE_PING_COUNT CONFIG_EXAMPLE_ESP_PING_COUNT
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#define EXAMPLE_PING_INTERVAL 1
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static int bleprph_gap_event(struct ble_gap_event *event, void *arg);
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static uint8_t own_addr_type;
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/* FreeRTOS event group to signal when we are connected*/
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static EventGroupHandle_t s_wifi_event_group;
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/* The event group allows multiple bits for each event, but we only care about two events:
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* - we are connected to the AP with an IP
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* - we failed to connect after the maximum amount of retries */
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#define WIFI_CONNECTED_BIT BIT0
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#define WIFI_FAIL_BIT BIT1
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static const char *TAG = "wifi_prph_coex";
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static int s_retry_num = 0;
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static void event_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
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esp_wifi_connect();
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} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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if (s_retry_num < EXAMPLE_ESP_MAXIMUM_RETRY) {
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esp_wifi_connect();
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s_retry_num++;
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ESP_LOGI(TAG, "retry to connect to the AP");
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} else {
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xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
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}
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ESP_LOGI(TAG,"connect to the AP fail");
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} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
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ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
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ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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void wifi_init_sta(void)
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{
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s_wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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esp_event_handler_instance_t instance_any_id;
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esp_event_handler_instance_t instance_got_ip;
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
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ESP_EVENT_ANY_ID,
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&event_handler,
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NULL,
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&instance_any_id));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
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IP_EVENT_STA_GOT_IP,
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&event_handler,
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NULL,
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&instance_got_ip));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = EXAMPLE_ESP_WIFI_SSID,
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.password = EXAMPLE_ESP_WIFI_PASS,
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/* Setting a password implies station will connect to all security modes including WEP/WPA.
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* However these modes are deprecated and not advisable to be used. Incase your Access point
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* doesn't support WPA2, these mode can be enabled by commenting below line */
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.threshold.authmode = WIFI_AUTH_WPA2_PSK,
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},
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};
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
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ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
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ESP_ERROR_CHECK(esp_wifi_start() );
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ESP_LOGI(TAG, "wifi_init_sta finished.");
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/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
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* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
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EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
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WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
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pdFALSE,
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pdFALSE,
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portMAX_DELAY);
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/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
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* happened. */
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if (bits & WIFI_CONNECTED_BIT) {
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ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
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EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
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} else if (bits & WIFI_FAIL_BIT) {
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ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
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EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
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} else {
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ESP_LOGE(TAG, "UNEXPECTED EVENT");
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}
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/* The event will not be processed after unregister */
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ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));
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ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
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vEventGroupDelete(s_wifi_event_group);
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}
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static void cmd_ping_on_ping_success(esp_ping_handle_t hdl, void *args)
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{
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uint8_t ttl;
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uint16_t seqno;
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uint32_t elapsed_time, recv_len;
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ip_addr_t target_addr;
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esp_ping_get_profile(hdl, ESP_PING_PROF_SEQNO, &seqno, sizeof(seqno));
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esp_ping_get_profile(hdl, ESP_PING_PROF_TTL, &ttl, sizeof(ttl));
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esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr));
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esp_ping_get_profile(hdl, ESP_PING_PROF_SIZE, &recv_len, sizeof(recv_len));
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esp_ping_get_profile(hdl, ESP_PING_PROF_TIMEGAP, &elapsed_time, sizeof(elapsed_time));
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printf("%d bytes from %s icmp_seq=%d ttl=%d time=%d ms\n",
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recv_len, inet_ntoa(target_addr.u_addr.ip4), seqno, ttl, elapsed_time);
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}
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static void cmd_ping_on_ping_timeout(esp_ping_handle_t hdl, void *args)
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{
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uint16_t seqno;
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ip_addr_t target_addr;
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esp_ping_get_profile(hdl, ESP_PING_PROF_SEQNO, &seqno, sizeof(seqno));
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esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr));
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printf("From %s icmp_seq=%d timeout\n", inet_ntoa(target_addr.u_addr.ip4), seqno);
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}
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static void cmd_ping_on_ping_end(esp_ping_handle_t hdl, void *args)
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{
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ip_addr_t target_addr;
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uint32_t transmitted;
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uint32_t received;
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uint32_t total_time_ms;
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esp_ping_get_profile(hdl, ESP_PING_PROF_REQUEST, &transmitted, sizeof(transmitted));
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esp_ping_get_profile(hdl, ESP_PING_PROF_REPLY, &received, sizeof(received));
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esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr));
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esp_ping_get_profile(hdl, ESP_PING_PROF_DURATION, &total_time_ms, sizeof(total_time_ms));
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uint32_t loss = (uint32_t)((1 - ((float)received) / transmitted) * 100);
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if (IP_IS_V4(&target_addr)) {
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printf("\n--- %s ping statistics ---\n", inet_ntoa(*ip_2_ip4(&target_addr)));
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} else {
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printf("\n--- %s ping statistics ---\n", inet6_ntoa(*ip_2_ip6(&target_addr)));
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}
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printf("%d packets transmitted, %d received, %d%% packet loss, time %dms\n",
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transmitted, received, loss, total_time_ms);
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// delete the ping sessions, so that we clean up all resources and can create a new ping session
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// we don't have to call delete function in the callback, instead we can call delete function from other tasks
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esp_ping_delete_session(hdl);
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}
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static int do_ping_cmd(void)
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{
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esp_ping_config_t config = ESP_PING_DEFAULT_CONFIG();
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static esp_ping_handle_t ping;
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config.interval_ms = (uint32_t)(EXAMPLE_PING_INTERVAL * 1000);
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config.count = (uint32_t)(EXAMPLE_PING_COUNT);
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// parse IP address
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ip_addr_t target_addr;
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struct addrinfo hint;
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struct addrinfo *res = NULL;
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memset(&hint, 0, sizeof(hint));
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memset(&target_addr, 0, sizeof(target_addr));
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/* convert domain name to IP address */
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if (getaddrinfo(EXAMPLE_PING_IP, NULL, &hint, &res) != 0) {
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printf("ping: unknown host %s\n", EXAMPLE_PING_IP);
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return 1;
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}
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if (res->ai_family == AF_INET) {
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struct in_addr addr4 = ((struct sockaddr_in *) (res->ai_addr))->sin_addr;
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inet_addr_to_ip4addr(ip_2_ip4(&target_addr), &addr4);
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} else {
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struct in6_addr addr6 = ((struct sockaddr_in6 *) (res->ai_addr))->sin6_addr;
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inet6_addr_to_ip6addr(ip_2_ip6(&target_addr), &addr6);
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}
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freeaddrinfo(res);
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config.target_addr = target_addr;
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/* set callback functions */
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esp_ping_callbacks_t cbs = {
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.on_ping_success = cmd_ping_on_ping_success,
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.on_ping_timeout = cmd_ping_on_ping_timeout,
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.on_ping_end = cmd_ping_on_ping_end,
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.cb_args = NULL
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};
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esp_ping_new_session(&config, &cbs, &ping);
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esp_ping_start(ping);
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return 0;
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}
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void ble_store_config_init(void);
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/**
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* Logs information about a connection to the console.
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*/
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static void
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bleprph_print_conn_desc(struct ble_gap_conn_desc *desc)
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{
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ESP_LOGI(TAG, "handle=%d our_ota_addr_type=%d our_ota_addr=%02x:%02x:%02x:%02x:%02x:%02x",
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desc->conn_handle, desc->our_ota_addr.type,
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desc->our_ota_addr.val[5],
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desc->our_ota_addr.val[4],
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desc->our_ota_addr.val[3],
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desc->our_ota_addr.val[2],
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desc->our_ota_addr.val[1],
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desc->our_ota_addr.val[0]);
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ESP_LOGI(TAG, "our_id_addr_type=%d our_id_addr=%02x:%02x:%02x:%02x:%02x:%02x",
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desc->our_id_addr.type,
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desc->our_id_addr.val[5],
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desc->our_id_addr.val[4],
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desc->our_id_addr.val[3],
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desc->our_id_addr.val[2],
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desc->our_id_addr.val[1],
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desc->our_id_addr.val[0]);
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ESP_LOGI(TAG, "peer_ota_addr_type=%d peer_ota_addr=%02x:%02x:%02x:%02x:%02x:%02x",
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desc->peer_ota_addr.type,
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desc->peer_ota_addr.val[5],
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desc->peer_ota_addr.val[4],
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desc->peer_ota_addr.val[3],
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desc->peer_ota_addr.val[2],
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desc->peer_ota_addr.val[1],
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desc->peer_ota_addr.val[0]);
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ESP_LOGI(TAG, "peer_id_addr_type=%d peer_id_addr=%02x:%02x:%02x:%02x:%02x:%02x",
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desc->peer_id_addr.type,
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desc->peer_id_addr.val[5],
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desc->peer_id_addr.val[4],
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desc->peer_id_addr.val[3],
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desc->peer_id_addr.val[2],
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desc->peer_id_addr.val[1],
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desc->peer_id_addr.val[0]);
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ESP_LOGI(TAG, "conn_itvl=%d conn_latency=%d supervision_timeout=%d "
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"encrypted=%d authenticated=%d bonded=%d",
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desc->conn_itvl, desc->conn_latency,
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desc->supervision_timeout,
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desc->sec_state.encrypted,
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desc->sec_state.authenticated,
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desc->sec_state.bonded);
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}
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/**
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* Enables advertising with the following parameters:
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* o General discoverable mode.
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* o Undirected connectable mode.
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*/
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static void
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bleprph_advertise(void)
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{
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struct ble_gap_adv_params adv_params;
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struct ble_hs_adv_fields fields;
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const char *name;
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int rc;
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/**
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* Set the advertisement data included in our advertisements:
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* o Flags (indicates advertisement type and other general info).
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* o Advertising tx power.
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* o Device name.
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* o 16-bit service UUIDs (alert notifications).
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*/
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memset(&fields, 0, sizeof fields);
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/* Advertise two flags:
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* o Discoverability in forthcoming advertisement (general)
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* o BLE-only (BR/EDR unsupported).
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*/
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fields.flags = BLE_HS_ADV_F_DISC_GEN |
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BLE_HS_ADV_F_BREDR_UNSUP;
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/* Indicate that the TX power level field should be included; have the
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* stack fill this value automatically. This is done by assigning the
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* special value BLE_HS_ADV_TX_PWR_LVL_AUTO.
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*/
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fields.tx_pwr_lvl_is_present = 1;
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fields.tx_pwr_lvl = BLE_HS_ADV_TX_PWR_LVL_AUTO;
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name = ble_svc_gap_device_name();
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fields.name = (uint8_t *)name;
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fields.name_len = strlen(name);
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fields.name_is_complete = 1;
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fields.uuids16 = (ble_uuid16_t[]) {
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BLE_UUID16_INIT(GATT_SVR_SVC_ALERT_UUID)
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};
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fields.num_uuids16 = 1;
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fields.uuids16_is_complete = 1;
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rc = ble_gap_adv_set_fields(&fields);
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if (rc != 0) {
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ESP_LOGE(TAG, "error setting advertisement data; rc=%d", rc);
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return;
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}
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/* Begin advertising. */
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memset(&adv_params, 0, sizeof adv_params);
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adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
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adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
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rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER,
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&adv_params, bleprph_gap_event, NULL);
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if (rc != 0) {
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ESP_LOGE(TAG, "error enabling advertisement; rc=%d", rc);
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return;
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}
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}
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/**
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* The nimble host executes this callback when a GAP event occurs. The
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* application associates a GAP event callback with each connection that forms.
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* bleprph uses the same callback for all connections.
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*
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* @param event The type of event being signalled.
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* @param ctxt Various information pertaining to the event.
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* @param arg Application-specified argument; unused by
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* bleprph.
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*
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* @return 0 if the application successfully handled the
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* event; nonzero on failure. The semantics
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* of the return code is specific to the
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* particular GAP event being signalled.
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*/
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static int
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bleprph_gap_event(struct ble_gap_event *event, void *arg)
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{
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struct ble_gap_conn_desc desc;
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int rc;
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switch (event->type) {
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case BLE_GAP_EVENT_CONNECT:
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/* A new connection was established or a connection attempt failed. */
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ESP_LOGI(TAG, "connection %s; status=%d ",
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event->connect.status == 0 ? "established" : "failed",
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event->connect.status);
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if (event->connect.status == 0) {
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rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
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assert(rc == 0);
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bleprph_print_conn_desc(&desc);
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}
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if (event->connect.status != 0) {
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/* Connection failed; resume advertising. */
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bleprph_advertise();
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}
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return 0;
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case BLE_GAP_EVENT_DISCONNECT:
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ESP_LOGI(TAG, "disconnect; reason=%d ", event->disconnect.reason);
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bleprph_print_conn_desc(&event->disconnect.conn);
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/* Connection terminated; resume advertising. */
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bleprph_advertise();
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return 0;
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case BLE_GAP_EVENT_CONN_UPDATE:
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/* The central has updated the connection parameters. */
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ESP_LOGI(TAG, "connection updated; status=%d ",
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event->conn_update.status);
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rc = ble_gap_conn_find(event->conn_update.conn_handle, &desc);
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assert(rc == 0);
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bleprph_print_conn_desc(&desc);
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return 0;
|
|
|
|
case BLE_GAP_EVENT_ADV_COMPLETE:
|
|
ESP_LOGI(TAG, "advertise complete; reason=%d",
|
|
event->adv_complete.reason);
|
|
bleprph_advertise();
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_ENC_CHANGE:
|
|
/* Encryption has been enabled or disabled for this connection. */
|
|
ESP_LOGI(TAG, "encryption change event; status=%d ",
|
|
event->enc_change.status);
|
|
rc = ble_gap_conn_find(event->enc_change.conn_handle, &desc);
|
|
assert(rc == 0);
|
|
bleprph_print_conn_desc(&desc);
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_SUBSCRIBE:
|
|
ESP_LOGI(TAG, "subscribe event; conn_handle=%d attr_handle=%d "
|
|
"reason=%d prevn=%d curn=%d previ=%d curi=%d",
|
|
event->subscribe.conn_handle,
|
|
event->subscribe.attr_handle,
|
|
event->subscribe.reason,
|
|
event->subscribe.prev_notify,
|
|
event->subscribe.cur_notify,
|
|
event->subscribe.prev_indicate,
|
|
event->subscribe.cur_indicate);
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_MTU:
|
|
ESP_LOGI(TAG, "mtu update event; conn_handle=%d cid=%d mtu=%d",
|
|
event->mtu.conn_handle,
|
|
event->mtu.channel_id,
|
|
event->mtu.value);
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_REPEAT_PAIRING:
|
|
/* We already have a bond with the peer, but it is attempting to
|
|
* establish a new secure link. This app sacrifices security for
|
|
* convenience: just throw away the old bond and accept the new link.
|
|
*/
|
|
|
|
/* Delete the old bond. */
|
|
rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
|
|
assert(rc == 0);
|
|
ble_store_util_delete_peer(&desc.peer_id_addr);
|
|
|
|
/* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should
|
|
* continue with the pairing operation.
|
|
*/
|
|
return BLE_GAP_REPEAT_PAIRING_RETRY;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
bleprph_on_reset(int reason)
|
|
{
|
|
ESP_LOGE(TAG, "Resetting state; reason=%d", reason);
|
|
}
|
|
|
|
static void
|
|
bleprph_on_sync(void)
|
|
{
|
|
int rc;
|
|
|
|
rc = ble_hs_util_ensure_addr(0);
|
|
assert(rc == 0);
|
|
|
|
/* Figure out address to use while advertising (no privacy for now) */
|
|
rc = ble_hs_id_infer_auto(0, &own_addr_type);
|
|
if (rc != 0) {
|
|
ESP_LOGE(TAG, "error determining address type; rc=%d", rc);
|
|
return;
|
|
}
|
|
|
|
/* Printing ADDR */
|
|
uint8_t addr_val[6] = {0};
|
|
rc = ble_hs_id_copy_addr(own_addr_type, addr_val, NULL);
|
|
|
|
ESP_LOGI(TAG, "Device Address:%02x:%02x:%02x:%02x:%02x:%02x",
|
|
addr_val[5],
|
|
addr_val[4],
|
|
addr_val[3],
|
|
addr_val[2],
|
|
addr_val[1],
|
|
addr_val[0]);
|
|
/* Begin advertising. */
|
|
bleprph_advertise();
|
|
}
|
|
|
|
void bleprph_host_task(void *param)
|
|
{
|
|
ESP_LOGI(TAG, "BLE Host Task Started");
|
|
/* This function will return only when nimble_port_stop() is executed */
|
|
nimble_port_run();
|
|
|
|
nimble_port_freertos_deinit();
|
|
}
|
|
|
|
void
|
|
app_main(void)
|
|
{
|
|
int rc;
|
|
|
|
/* Initialize NVS — it is used to store PHY calibration data */
|
|
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);
|
|
|
|
ESP_LOGI(TAG, "ESP_WIFI_MODE_STA");
|
|
wifi_init_sta();
|
|
do_ping_cmd();
|
|
ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
|
|
|
|
nimble_port_init();
|
|
/* Initialize the NimBLE host configuration. */
|
|
ble_hs_cfg.reset_cb = bleprph_on_reset;
|
|
ble_hs_cfg.sync_cb = bleprph_on_sync;
|
|
ble_hs_cfg.gatts_register_cb = gatt_svr_register_cb;
|
|
ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
|
|
|
|
rc = gatt_svr_init();
|
|
assert(rc == 0);
|
|
|
|
/* Set the default device name. */
|
|
rc = ble_svc_gap_device_name_set("nimble-bleprph");
|
|
assert(rc == 0);
|
|
|
|
/* XXX Need to have template for store */
|
|
ble_store_config_init();
|
|
|
|
nimble_port_freertos_init(bleprph_host_task);
|
|
}
|