kopia lustrzana https://github.com/espressif/esp-idf
158 wiersze
5.8 KiB
C
158 wiersze
5.8 KiB
C
/* OpenThread Command Line Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include "esp_check.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_ot_tcp_socket.h"
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#include "lwip/err.h"
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#include "lwip/sockets.h"
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#define TAG "ot_socket"
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static void tcp_socket_server_task(void *pvParameters)
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{
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char addr_str[128];
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char rx_buffer[128];
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esp_err_t ret = ESP_OK;
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int err = 0;
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int len = 0;
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int listen_sock;
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int opt = 1;
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int port = CONFIG_OPENTHREAD_CLI_TCP_SERVER_PORT;
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int client_sock = 0;
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struct timeval timeout = { 0 };
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struct sockaddr_storage source_addr; // Large enough for both IPv6
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struct sockaddr_in6 listen_addr = { 0 };
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// The TCP server listen at the address "::", which means all addresses can be listened to.
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inet6_aton("::", &listen_addr.sin6_addr);
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listen_addr.sin6_family = AF_INET6;
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listen_addr.sin6_port = htons(port);
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listen_sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_IPV6);
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ESP_GOTO_ON_FALSE((listen_sock >= 0), ESP_OK, exit, TAG, "Unable to create socket: errno %d", errno);
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setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
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// Note that by default IPV6 binds to both protocols, it is must be disabled
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// if both protocols used at the same time (used in CI)
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setsockopt(listen_sock, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt));
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ESP_LOGI(TAG, "Socket created");
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err = bind(listen_sock, (struct sockaddr *)&listen_addr, sizeof(struct sockaddr_in6) );
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ESP_GOTO_ON_FALSE((err == 0), ESP_FAIL, exit, TAG, "Socket unable to bind: errno %d, IPPROTO: %d", errno, AF_INET6);
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ESP_LOGI(TAG, "Socket bound, port %d", port);
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err = listen(listen_sock, 1);
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ESP_GOTO_ON_FALSE((err == 0), ESP_FAIL, exit, TAG, "Error occurred during listen: errno %d", errno);
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//blocking-mode accept, set timeout 30 seconds
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timeout.tv_sec = 30;
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setsockopt(listen_sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
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ESP_LOGI(TAG, "Socket listening, timeout is 30 seconds");
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socklen_t addr_len = sizeof(source_addr);
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client_sock = accept(listen_sock, (struct sockaddr *)&source_addr, &addr_len);
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ESP_GOTO_ON_FALSE((client_sock >= 0), ESP_FAIL, exit, TAG, "Unable to accept connection: errno %d", errno);
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ESP_GOTO_ON_FALSE((err >= 0), ESP_FAIL, exit, TAG, "Error occurred during sending: errno %d", errno);
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//blocking-mode receive, set timeout 30 seconds
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timeout.tv_sec = 30;
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setsockopt(client_sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
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len = recv(client_sock, rx_buffer, sizeof(rx_buffer) - 1, 0);
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// Error occurred during receiving
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ESP_GOTO_ON_FALSE((len >= 0), ESP_FAIL, exit, TAG, "recv failed: errno %d", errno);
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// Data received
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rx_buffer[len] = 0; // Null-terminate whatever we received and treat like a string
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ESP_LOGI(TAG, "Received %d bytes from client:", len);
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ESP_LOGI(TAG, "%s", rx_buffer);
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// Convert ip address to string
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inet6_ntoa_r(((struct sockaddr_in6 *)&source_addr)->sin6_addr, addr_str, sizeof(addr_str) - 1);
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ESP_LOGI(TAG, "Socket accepted ip address: %s", addr_str);
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exit:
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if (ret != ESP_OK || listen_sock != -1) {
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shutdown(listen_sock, 0);
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close(listen_sock);
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}
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if (client_sock != -1) {
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shutdown(client_sock, 0);
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close(client_sock);
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}
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ESP_LOGI(TAG, "Socket server is closed.");
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vTaskDelete(NULL);
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}
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static void tcp_socket_client_task(void *pvParameters)
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{
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char *host_ip = (char *)pvParameters;
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char *payload = "This message is from client\n";
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char rx_buffer[128];
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esp_err_t ret = ESP_OK;
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int client_sock;
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int err = 0;
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int len = 0;
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int port = CONFIG_OPENTHREAD_CLI_TCP_SERVER_PORT;
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struct sockaddr_in6 dest_addr = { 0 };
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inet6_aton(host_ip, &dest_addr.sin6_addr);
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dest_addr.sin6_family = AF_INET6;
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dest_addr.sin6_port = htons(port);
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client_sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_IPV6);
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ESP_GOTO_ON_FALSE((client_sock >= 0), ESP_OK, exit, TAG, "Unable to create socket: errno %d", errno);
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ESP_LOGI(TAG, "Socket created, connecting to %s:%d", host_ip, port);
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err = connect(client_sock, (struct sockaddr *)&dest_addr, sizeof(struct sockaddr_in6));
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ESP_GOTO_ON_FALSE((err == 0), ESP_FAIL, exit, TAG, "Socket unable to connect: errno %d", errno);
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ESP_LOGI(TAG, "Successfully connected");
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len = send(client_sock, payload, strlen(payload), 0);
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ESP_GOTO_ON_FALSE((len >= 0), ESP_FAIL, exit, TAG, "Error occurred during sending: errno %d", errno);
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len = recv(client_sock, rx_buffer, sizeof(rx_buffer) - 1, 0);
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// Error occurred during receiving
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ESP_GOTO_ON_FALSE((len >= 0), ESP_FAIL, exit, TAG, "recv failed: errno %d", errno);
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// Data received
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rx_buffer[len] = 0; // Null-terminate whatever we received and treat like a string
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ESP_LOGI(TAG, "Received %d bytes from %s", len, host_ip);
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ESP_LOGI(TAG, "%s", rx_buffer);
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exit:
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if (ret != ESP_OK || client_sock != -1) {
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shutdown(client_sock, 0);
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close(client_sock);
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}
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ESP_LOGI(TAG, "Socket client is closed.");
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vTaskDelete(NULL);
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}
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void esp_ot_process_tcp_server(void *aContext, uint8_t aArgsLength, char *aArgs[])
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{
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(void)(aContext);
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(void)(aArgsLength);
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(void)(*aArgs);
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xTaskCreate(tcp_socket_server_task, "ot_tcp_scoket_server", 4096, xTaskGetCurrentTaskHandle(), 4, NULL);
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}
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void esp_ot_process_tcp_client(void *aContext, uint8_t aArgsLength, char *aArgs[])
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{
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(void)(aContext);
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(void)(aArgsLength);
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if (aArgsLength == 0) {
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ESP_LOGE(TAG, "Invalid arguments.");
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} else {
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xTaskCreate(tcp_socket_client_task, "ot_tcp_socket_client", 4096, aArgs[0], 4, NULL);
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}
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}
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