ESP32 ping功能的实现代码

#include"bsp.h" static void test_on_ping_success(esp_ping_handle_t hdl, void *args) { // optionally, get callback arguments // const char* str = (const char*) args; // printf("%s\r\n", str); // "foo" uint8_t ttl; uint16_t seqno; uint32_t elapsed_time, recv_len; ip_addr_t target_addr; esp_ping_get_profile(hdl, ESP_PING_PROF_SEQNO, &seqno, sizeof(seqno)); esp_ping_get_profile(hdl, ESP_PING_PROF_TTL, &ttl, sizeof(ttl)); esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr)); esp_ping_get_profile(hdl, ESP_PING_PROF_SIZE, &recv_len, sizeof(recv_len)); esp_ping_get_profile(hdl, ESP_PING_PROF_TIMEGAP, &elapsed_time, sizeof(elapsed_time)); my_printf("%d bytes from %s icmp_seq=%d ttl=%d time=%d ms\n",recv_len, inet_ntoa(target_addr.u_addr.ip4), seqno, ttl, elapsed_time); } static void test_on_ping_timeout(esp_ping_handle_t hdl, void *args) { uint16_t seqno; ip_addr_t target_addr; esp_ping_get_profile(hdl, ESP_PING_PROF_SEQNO, &seqno, sizeof(seqno)); esp_ping_get_profile(hdl, ESP_PING_PROF_IPADDR, &target_addr, sizeof(target_addr)); my_printf("From %s icmp_seq=%d timeout\n", inet_ntoa(target_addr.u_addr.ip4), seqno); } static void test_on_ping_end(esp_ping_handle_t hdl, void *args) { uint32_t transmitted; uint32_t received; uint32_t total_time_ms; esp_ping_get_profile(hdl, ESP_PING_PROF_REQUEST, &transmitted, sizeof(transmitted)); esp_ping_get_profile(hdl, ESP_PING_PROF_REPLY, &received, sizeof(received)); esp_ping_get_profile(hdl, ESP_PING_PROF_DURATION, &total_time_ms, sizeof(total_time_ms)); my_printf("%d packets transmitted, %d received, time %dms\n", transmitted, received, total_time_ms); } void Start_Ping_ESP32(void){ /* convert URL to IP address */ my_printf("Start_Ping_ESP32\r\n"); ip_addr_t target_addr; struct addrinfo hint; struct addrinfo *res = NULL; memset(&hint, 0, sizeof(hint)); memset(&target_addr, 0, sizeof(target_addr)); getaddrinfo("www.baidu.com", NULL, &hint, &res); struct in_addr addr4 = ((struct sockaddr_in *) (res->ai_addr))->sin_addr; inet_addr_to_ip4addr(ip_2_ip4(&target_addr), &addr4); freeaddrinfo(res); esp_ping_config_t ping_config = ESP_PING_DEFAULT_CONFIG(); // ipaddr_aton("192.168.1.170", &target_addr); ping_config.target_addr = target_addr; // target IP address ping_config.count = ESP_PING_COUNT_INFINITE; // ping in infinite mode, esp_ping_stop can stop it /* set callback functions */ esp_ping_callbacks_t cbs; cbs.on_ping_success = test_on_ping_success; cbs.on_ping_timeout = test_on_ping_timeout; cbs.on_ping_end = test_on_ping_end; cbs.cb_args = "foo"; // arguments that will feed to all callback functions, can be NULL cbs.cb_args = NULL; esp_ping_handle_t ping; esp_ping_new_session(&ping_config, &cbs, &ping); esp_ping_start(ping); // esp_ping_stop(ping); // esp_ping_delete_session(ping); }