/* * SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #include #include #include #include #include #include #include #include "sdkconfig.h" #include "esp_tls.h" #include "esp_tls_private.h" #include "esp_tls_platform_port.h" #include "esp_tls_error_capture_internal.h" #include #include #if CONFIG_IDF_TARGET_LINUX && !ESP_TLS_WITH_LWIP #include #include #include #include #ifdef __linux__ #include #endif #ifdef __APPLE__ #include #endif typedef struct in_addr ip_addr_t; typedef struct in6_addr ip6_addr_t; #define ipaddr_ntoa(ipaddr) inet_ntoa(*ipaddr) static inline char *ip6addr_ntoa(const ip6_addr_t *addr) { static char str[40]; return (char *)inet_ntop(AF_INET6, addr->s6_addr, str, 40); } #endif // CONFIG_IDF_TARGET_LINUX && !ESP_TLS_WITH_LWIP static const char *TAG = "esp-tls"; #ifdef CONFIG_ESP_TLS_USING_MBEDTLS #include "esp_tls_mbedtls.h" #elif CONFIG_ESP_TLS_USING_WOLFSSL #include "esp_tls_wolfssl.h" #endif #ifdef ESP_PLATFORM #include #else #define ESP_LOGD(TAG, ...) //printf(__VA_ARGS__); #define ESP_LOGE(TAG, ...) printf(__VA_ARGS__); #endif #ifdef CONFIG_ESP_TLS_USING_MBEDTLS #define _esp_create_ssl_handle esp_create_mbedtls_handle #define _esp_tls_handshake esp_mbedtls_handshake #define _esp_tls_read esp_mbedtls_read #define _esp_tls_write esp_mbedtls_write #define _esp_tls_conn_delete esp_mbedtls_conn_delete #define _esp_tls_net_init esp_mbedtls_net_init #define _esp_tls_get_client_session esp_mbedtls_get_client_session #define _esp_tls_free_client_session esp_mbedtls_free_client_session #define _esp_tls_get_ssl_context esp_mbedtls_get_ssl_context #define _esp_tls_server_session_create esp_mbedtls_server_session_create #define _esp_tls_server_session_delete esp_mbedtls_server_session_delete #define _esp_tls_server_session_ticket_ctx_init esp_mbedtls_server_session_ticket_ctx_init #define _esp_tls_server_session_ticket_ctx_free esp_mbedtls_server_session_ticket_ctx_free #define _esp_tls_get_bytes_avail esp_mbedtls_get_bytes_avail #define _esp_tls_init_global_ca_store esp_mbedtls_init_global_ca_store #define _esp_tls_set_global_ca_store esp_mbedtls_set_global_ca_store /*!< Callback function for setting global CA store data for TLS/SSL */ #define _esp_tls_get_global_ca_store esp_mbedtls_get_global_ca_store #define _esp_tls_free_global_ca_store esp_mbedtls_free_global_ca_store /*!< Callback function for freeing global ca store for TLS/SSL */ #define _esp_tls_get_ciphersuites_list esp_mbedtls_get_ciphersuites_list #elif CONFIG_ESP_TLS_USING_WOLFSSL /* CONFIG_ESP_TLS_USING_MBEDTLS */ #define _esp_create_ssl_handle esp_create_wolfssl_handle #define _esp_tls_handshake esp_wolfssl_handshake #define _esp_tls_read esp_wolfssl_read #define _esp_tls_write esp_wolfssl_write #define _esp_tls_conn_delete esp_wolfssl_conn_delete #define _esp_tls_net_init esp_wolfssl_net_init #define _esp_tls_server_session_create esp_wolfssl_server_session_create #define _esp_tls_server_session_delete esp_wolfssl_server_session_delete #define _esp_tls_get_bytes_avail esp_wolfssl_get_bytes_avail #define _esp_tls_init_global_ca_store esp_wolfssl_init_global_ca_store #define _esp_tls_set_global_ca_store esp_wolfssl_set_global_ca_store /*!< Callback function for setting global CA store data for TLS/SSL */ #define _esp_tls_free_global_ca_store esp_wolfssl_free_global_ca_store /*!< Callback function for freeing global ca store for TLS/SSL */ #define _esp_tls_get_ssl_context esp_wolfssl_get_ssl_context #else /* ESP_TLS_USING_WOLFSSL */ #error "No TLS stack configured" #endif #if CONFIG_IDF_TARGET_LINUX #define IPV4_ENABLED 1 #define IPV6_ENABLED 1 #else // CONFIG_IDF_TARGET_LINUX #define IPV4_ENABLED CONFIG_LWIP_IPV4 #define IPV6_ENABLED CONFIG_LWIP_IPV6 #endif // !CONFIG_IDF_TARGET_LINUX #define ESP_TLS_DEFAULT_CONN_TIMEOUT (10) /*!< Default connection timeout in seconds */ static esp_err_t create_ssl_handle(const char *hostname, size_t hostlen, const void *cfg, esp_tls_t *tls) { return _esp_create_ssl_handle(hostname, hostlen, cfg, tls, NULL); } static esp_err_t esp_tls_handshake(esp_tls_t *tls, const esp_tls_cfg_t *cfg) { return _esp_tls_handshake(tls, cfg); } static ssize_t tcp_read(esp_tls_t *tls, char *data, size_t datalen) { return recv(tls->sockfd, data, datalen, 0); } static ssize_t tcp_write(esp_tls_t *tls, const char *data, size_t datalen) { return send(tls->sockfd, data, datalen, 0); } ssize_t esp_tls_conn_read(esp_tls_t *tls, void *data, size_t datalen) { if (!tls) { return -1; } return tls->read(tls, (char *)data, datalen); } ssize_t esp_tls_conn_write(esp_tls_t *tls, const void *data, size_t datalen) { if (!tls || !data) { return -1; } return tls->write(tls, (char *)data, datalen); } /** * @brief Close the TLS connection and free any allocated resources. */ int esp_tls_conn_destroy(esp_tls_t *tls) { if (tls != NULL) { int ret = 0; _esp_tls_conn_delete(tls); if (tls->sockfd >= 0) { ret = close(tls->sockfd); } esp_tls_internal_event_tracker_destroy(tls->error_handle); free(tls); tls = NULL; return ret; } return -1; // invalid argument } esp_tls_t *esp_tls_init(void) { esp_tls_t *tls = (esp_tls_t *)calloc(1, sizeof(esp_tls_t)); if (!tls) { return NULL; } tls->error_handle = esp_tls_internal_event_tracker_create(); if (!tls->error_handle) { free(tls); return NULL; } _esp_tls_net_init(tls); tls->sockfd = -1; return tls; } static esp_err_t esp_tls_hostname_to_fd(const char *host, size_t hostlen, int port, esp_tls_addr_family_t addr_family, struct sockaddr_storage *address, int* fd) { struct addrinfo *address_info; struct addrinfo hints; memset(&hints, 0, sizeof(hints)); switch (addr_family) { case ESP_TLS_AF_INET: hints.ai_family = AF_INET; break; case ESP_TLS_AF_INET6: hints.ai_family = AF_INET6; break; default: hints.ai_family = AF_UNSPEC; break; } hints.ai_socktype = SOCK_STREAM; char *use_host = strndup(host, hostlen); if (!use_host) { return ESP_ERR_NO_MEM; } ESP_LOGD(TAG, "host:%s: strlen %lu", use_host, (unsigned long)hostlen); int res = getaddrinfo(use_host, NULL, &hints, &address_info); if (res != 0 || address_info == NULL) { ESP_LOGE(TAG, "couldn't get hostname for :%s: " "getaddrinfo() returns %d, addrinfo=%p", use_host, res, address_info); free(use_host); return ESP_ERR_ESP_TLS_CANNOT_RESOLVE_HOSTNAME; } free(use_host); *fd = socket(address_info->ai_family, address_info->ai_socktype, address_info->ai_protocol); if (*fd < 0) { ESP_LOGE(TAG, "Failed to create socket (family %d socktype %d protocol %d)", address_info->ai_family, address_info->ai_socktype, address_info->ai_protocol); freeaddrinfo(address_info); return ESP_ERR_ESP_TLS_CANNOT_CREATE_SOCKET; } #if IPV4_ENABLED if (address_info->ai_family == AF_INET) { struct sockaddr_in *p = (struct sockaddr_in *)address_info->ai_addr; p->sin_port = htons(port); ESP_LOGD(TAG, "[sock=%d] Resolved IPv4 address: %s", *fd, ipaddr_ntoa((const ip_addr_t*)&p->sin_addr.s_addr)); memcpy(address, p, sizeof(struct sockaddr )); } #endif #if IPV4_ENABLED && IPV6_ENABLED else #endif #if IPV6_ENABLED if (address_info->ai_family == AF_INET6) { struct sockaddr_in6 *p = (struct sockaddr_in6 *)address_info->ai_addr; p->sin6_port = htons(port); p->sin6_family = AF_INET6; ESP_LOGD(TAG, "[sock=%d] Resolved IPv6 address: %s", *fd, ip6addr_ntoa((const ip6_addr_t*)&p->sin6_addr)); memcpy(address, p, sizeof(struct sockaddr_in6 )); } #endif else { ESP_LOGE(TAG, "Unsupported protocol family %d", address_info->ai_family); close(*fd); freeaddrinfo(address_info); return ESP_ERR_ESP_TLS_UNSUPPORTED_PROTOCOL_FAMILY; } freeaddrinfo(address_info); return ESP_OK; } static void ms_to_timeval(int timeout_ms, struct timeval *tv) { tv->tv_sec = timeout_ms / 1000; tv->tv_usec = (timeout_ms % 1000) * 1000; } static esp_err_t esp_tls_set_socket_options(int fd, const esp_tls_cfg_t *cfg) { if (cfg) { struct timeval tv = {}; if (cfg->timeout_ms > 0) { ms_to_timeval(cfg->timeout_ms, &tv); } else { tv.tv_sec = ESP_TLS_DEFAULT_CONN_TIMEOUT; tv.tv_usec = 0; } if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt SO_RCVTIMEO"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } if (setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt SO_SNDTIMEO"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } if (cfg->keep_alive_cfg && cfg->keep_alive_cfg->keep_alive_enable) { int keep_alive_enable = 1; int keep_alive_idle = cfg->keep_alive_cfg->keep_alive_idle; int keep_alive_interval = cfg->keep_alive_cfg->keep_alive_interval; int keep_alive_count = cfg->keep_alive_cfg->keep_alive_count; ESP_LOGD(TAG, "Enable TCP keep alive. idle: %d, interval: %d, count: %d", keep_alive_idle, keep_alive_interval, keep_alive_count); if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &keep_alive_enable, sizeof(keep_alive_enable)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt SO_KEEPALIVE"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } #ifndef __APPLE__ if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &keep_alive_idle, sizeof(keep_alive_idle)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt TCP_KEEPIDLE"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &keep_alive_interval, sizeof(keep_alive_interval)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt TCP_KEEPINTVL"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &keep_alive_count, sizeof(keep_alive_count)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt TCP_KEEPCNT"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } #else // __APPLE__ if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &keep_alive_idle, sizeof(keep_alive_idle)) != 0) { ESP_LOGE(TAG, "Fail to setsockopt TCP_KEEPALIVE"); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } #endif // __APPLE__ } if (cfg->if_name) { if (cfg->if_name->ifr_name[0] != 0) { ESP_LOGD(TAG, "Bind [sock=%d] to interface %s", fd, cfg->if_name->ifr_name); #ifndef __APPLE__ if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, cfg->if_name, sizeof(struct ifreq)) != 0) { #else int idx = if_nametoindex(cfg->if_name->ifr_name); if (setsockopt(fd, IPPROTO_IP, IP_BOUND_IF, &idx, sizeof(idx)) != 0) { #endif ESP_LOGE(TAG, "Bind [sock=%d] to interface %s fail", fd, cfg->if_name->ifr_name); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } } } } return ESP_OK; } static esp_err_t esp_tls_set_socket_non_blocking(int fd, bool non_blocking) { int flags; if ((flags = fcntl(fd, F_GETFL, NULL)) < 0) { ESP_LOGE(TAG, "[sock=%d] get file flags error: %s", fd, strerror(errno)); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } if (non_blocking) { flags |= O_NONBLOCK; } else { flags &= ~O_NONBLOCK; } if (fcntl(fd, F_SETFL, flags) < 0) { ESP_LOGE(TAG, "[sock=%d] set blocking/nonblocking error: %s", fd, strerror(errno)); return ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; } return ESP_OK; } static inline esp_err_t tcp_connect(const char *host, int hostlen, int port, const esp_tls_cfg_t *cfg, esp_tls_error_handle_t error_handle, int *sockfd) { struct sockaddr_storage address; int fd; esp_tls_addr_family_t addr_family = (cfg != NULL) ? cfg->addr_family : ESP_TLS_AF_UNSPEC; esp_err_t ret = esp_tls_hostname_to_fd(host, hostlen, port, addr_family, &address, &fd); if (ret != ESP_OK) { ESP_INT_EVENT_TRACKER_CAPTURE(error_handle, ESP_TLS_ERR_TYPE_SYSTEM, errno); return ret; } // Set timeout options, keep-alive options and bind device options if configured ret = esp_tls_set_socket_options(fd, cfg); if (ret != ESP_OK) { goto err; } // Set to non block before connecting to better control connection timeout ret = esp_tls_set_socket_non_blocking(fd, true); if (ret != ESP_OK) { goto err; } ret = ESP_ERR_ESP_TLS_FAILED_CONNECT_TO_HOST; ESP_LOGD(TAG, "[sock=%d] Connecting to server. HOST: %s, Port: %d", fd, host, port); if (connect(fd, (struct sockaddr *)&address, sizeof(struct sockaddr)) < 0) { if (errno == EINPROGRESS) { fd_set fdset; struct timeval tv = { .tv_usec = 0, .tv_sec = ESP_TLS_DEFAULT_CONN_TIMEOUT }; // Default connection timeout is 10 s if (cfg && cfg->non_block) { // Non-blocking mode -> just return successfully at this stage *sockfd = fd; return ESP_OK; } if ( cfg && cfg->timeout_ms > 0 ) { ms_to_timeval(cfg->timeout_ms, &tv); } FD_ZERO(&fdset); FD_SET(fd, &fdset); int res = select(fd+1, NULL, &fdset, NULL, &tv); if (res < 0) { ESP_LOGE(TAG, "[sock=%d] select() error: %s", fd, strerror(errno)); ESP_INT_EVENT_TRACKER_CAPTURE(error_handle, ESP_TLS_ERR_TYPE_SYSTEM, errno); goto err; } else if (res == 0) { ESP_LOGE(TAG, "[sock=%d] select() timeout", fd); ret = ESP_ERR_ESP_TLS_CONNECTION_TIMEOUT; goto err; } else { int sockerr; socklen_t len = (socklen_t)sizeof(int); if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (void*)(&sockerr), &len) < 0) { ESP_LOGE(TAG, "[sock=%d] getsockopt() error: %s", fd, strerror(errno)); ret = ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED; goto err; } else if (sockerr) { ESP_INT_EVENT_TRACKER_CAPTURE(error_handle, ESP_TLS_ERR_TYPE_SYSTEM, sockerr); ESP_LOGE(TAG, "[sock=%d] delayed connect error: %s", fd, strerror(sockerr)); goto err; } } } else { ESP_LOGE(TAG, "[sock=%d] connect() error: %s", fd, strerror(errno)); goto err; } } if (cfg && cfg->non_block == false) { // reset back to blocking mode (unless non_block configured) ret = esp_tls_set_socket_non_blocking(fd, false); if (ret != ESP_OK) { goto err; } } *sockfd = fd; return ESP_OK; err: close(fd); return ret; } static int esp_tls_low_level_conn(const char *hostname, int hostlen, int port, const esp_tls_cfg_t *cfg, esp_tls_t *tls) { esp_err_t esp_ret; /* These states are used to keep a tab on connection progress in case of non-blocking connect, and in case of blocking connect these cases will get executed one after the other */ switch (tls->conn_state) { case ESP_TLS_INIT: tls->sockfd = -1; if (cfg != NULL && cfg->is_plain_tcp == false) { _esp_tls_net_init(tls); tls->is_tls = true; } if ((esp_ret = tcp_connect(hostname, hostlen, port, cfg, tls->error_handle, &tls->sockfd)) != ESP_OK) { ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_ESP, esp_ret); return -1; } if (tls->is_tls == false) { tls->read = tcp_read; tls->write = tcp_write; ESP_LOGD(TAG, "non-tls connection established"); return 1; } if (cfg && cfg->non_block) { FD_ZERO(&tls->rset); FD_SET(tls->sockfd, &tls->rset); tls->wset = tls->rset; } tls->conn_state = ESP_TLS_CONNECTING; /* falls through */ case ESP_TLS_CONNECTING: if (cfg && cfg->non_block) { ESP_LOGD(TAG, "connecting..."); struct timeval tv; ms_to_timeval(cfg->timeout_ms, &tv); /* In case of non-blocking I/O, we use the select() API to check whether connection has been established or not*/ if (select(tls->sockfd + 1, &tls->rset, &tls->wset, NULL, cfg->timeout_ms>0 ? &tv : NULL) == 0) { ESP_LOGD(TAG, "select() timed out"); return 0; } if (FD_ISSET(tls->sockfd, &tls->rset) || FD_ISSET(tls->sockfd, &tls->wset)) { int error; socklen_t len = sizeof(error); /* pending error check */ if (getsockopt(tls->sockfd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { ESP_LOGD(TAG, "Non blocking connect failed"); ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_SYSTEM, errno); ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_ESP, ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED); tls->conn_state = ESP_TLS_FAIL; return -1; } } } /* By now, the connection has been established */ esp_ret = create_ssl_handle(hostname, hostlen, cfg, tls); if (esp_ret != ESP_OK) { ESP_LOGE(TAG, "create_ssl_handle failed"); ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_ESP, esp_ret); tls->conn_state = ESP_TLS_FAIL; return -1; } tls->read = _esp_tls_read; tls->write = _esp_tls_write; tls->conn_state = ESP_TLS_HANDSHAKE; /* falls through */ case ESP_TLS_HANDSHAKE: ESP_LOGD(TAG, "handshake in progress..."); return esp_tls_handshake(tls, cfg); break; case ESP_TLS_FAIL: ESP_LOGE(TAG, "failed to open a new connection");; break; default: ESP_LOGE(TAG, "invalid esp-tls state"); break; } return -1; } /** * @brief Create a new plain TCP connection */ esp_err_t esp_tls_plain_tcp_connect(const char *host, int hostlen, int port, const esp_tls_cfg_t *cfg, esp_tls_error_handle_t error_handle, int *sockfd) { if (sockfd == NULL || error_handle == NULL) { return ESP_ERR_INVALID_ARG; } return tcp_connect(host, hostlen, port, cfg, error_handle, sockfd); } int esp_tls_conn_new_sync(const char *hostname, int hostlen, int port, const esp_tls_cfg_t *cfg, esp_tls_t *tls) { if (!cfg || !tls || !hostname || hostlen < 0) { return -1; } uint64_t start_time_us; start_time_us = esp_tls_get_platform_time(); while (1) { int ret = esp_tls_low_level_conn(hostname, hostlen, port, cfg, tls); if (ret == 1) { return ret; } else if (ret == -1) { ESP_LOGE(TAG, "Failed to open new connection"); return -1; } else if (ret == 0 && cfg->timeout_ms >= 0) { uint64_t elapsed_time_us = esp_tls_get_platform_time() - start_time_us; if ((elapsed_time_us / 1000) >= cfg->timeout_ms) { ESP_LOGW(TAG, "Failed to open new connection in specified timeout"); ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_ESP, ESP_ERR_ESP_TLS_CONNECTION_TIMEOUT); return 0; } } } return 0; } /* * @brief Create a new TLS/SSL non-blocking connection */ int esp_tls_conn_new_async(const char *hostname, int hostlen, int port, const esp_tls_cfg_t *cfg, esp_tls_t *tls) { if (!cfg || !tls || !hostname || hostlen < 0) { return -1; } return esp_tls_low_level_conn(hostname, hostlen, port, cfg, tls); } static int get_port(const char *url, struct http_parser_url *u) { if (u->field_data[UF_PORT].len) { return strtol(&url[u->field_data[UF_PORT].off], NULL, 10); } else { if (strncasecmp(&url[u->field_data[UF_SCHEMA].off], "http", u->field_data[UF_SCHEMA].len) == 0) { return 80; } else if (strncasecmp(&url[u->field_data[UF_SCHEMA].off], "https", u->field_data[UF_SCHEMA].len) == 0) { return 443; } } return 0; } esp_tls_t *esp_tls_conn_http_new(const char *url, const esp_tls_cfg_t *cfg) { if (!url || !cfg) { return NULL; } /* Parse URI */ struct http_parser_url u; http_parser_url_init(&u); http_parser_parse_url(url, strlen(url), 0, &u); esp_tls_t *tls = esp_tls_init(); if (!tls) { return NULL; } /* Connect to host */ if (esp_tls_conn_new_sync(&url[u.field_data[UF_HOST].off], u.field_data[UF_HOST].len, get_port(url, &u), cfg, tls) == 1) { return tls; } esp_tls_conn_destroy(tls); return NULL; } /** * @brief Create a new TLS/SSL connection with a given "HTTP" url */ int esp_tls_conn_http_new_sync(const char *url, const esp_tls_cfg_t *cfg, esp_tls_t *tls) { if (!url || !cfg || !tls) { return -1; } /* Parse URI */ struct http_parser_url u; http_parser_url_init(&u); http_parser_parse_url(url, strlen(url), 0, &u); /* Connect to host */ return esp_tls_conn_new_sync(&url[u.field_data[UF_HOST].off], u.field_data[UF_HOST].len, get_port(url, &u), cfg, tls); } /** * @brief Create a new non-blocking TLS/SSL connection with a given "HTTP" url */ int esp_tls_conn_http_new_async(const char *url, const esp_tls_cfg_t *cfg, esp_tls_t *tls) { /* Parse URI */ struct http_parser_url u; http_parser_url_init(&u); http_parser_parse_url(url, strlen(url), 0, &u); /* Connect to host */ return esp_tls_conn_new_async(&url[u.field_data[UF_HOST].off], u.field_data[UF_HOST].len, get_port(url, &u), cfg, tls); } #ifdef CONFIG_ESP_TLS_USING_MBEDTLS mbedtls_x509_crt *esp_tls_get_global_ca_store(void) { return _esp_tls_get_global_ca_store(); } const int *esp_tls_get_ciphersuites_list(void) { return _esp_tls_get_ciphersuites_list(); } #endif /* CONFIG_ESP_TLS_USING_MBEDTLS */ #ifdef CONFIG_ESP_TLS_CLIENT_SESSION_TICKETS esp_tls_client_session_t *esp_tls_get_client_session(esp_tls_t *tls) { return _esp_tls_get_client_session(tls); } void esp_tls_free_client_session(esp_tls_client_session_t *client_session) { _esp_tls_free_client_session(client_session); } #endif /* CONFIG_ESP_TLS_CLIENT_SESSION_TICKETS */ esp_err_t esp_tls_cfg_server_session_tickets_init(esp_tls_cfg_server_t *cfg) { #if defined(CONFIG_ESP_TLS_SERVER_SESSION_TICKETS) if (!cfg || cfg->ticket_ctx) { return ESP_ERR_INVALID_ARG; } cfg->ticket_ctx = calloc(1, sizeof(esp_tls_server_session_ticket_ctx_t)); if (!cfg->ticket_ctx) { return ESP_ERR_NO_MEM; } esp_err_t ret = _esp_tls_server_session_ticket_ctx_init(cfg->ticket_ctx); if (ret != ESP_OK) { free(cfg->ticket_ctx); } return ret; #else return ESP_ERR_NOT_SUPPORTED; #endif } void esp_tls_cfg_server_session_tickets_free(esp_tls_cfg_server_t *cfg) { #if defined(CONFIG_ESP_TLS_SERVER_SESSION_TICKETS) if (cfg && cfg->ticket_ctx) { _esp_tls_server_session_ticket_ctx_free(cfg->ticket_ctx); } #endif } /** * @brief Create a server side TLS/SSL connection */ int esp_tls_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls) { return _esp_tls_server_session_create(cfg, sockfd, tls); } /** * @brief Close the server side TLS/SSL connection and free any allocated resources. */ void esp_tls_server_session_delete(esp_tls_t *tls) { return _esp_tls_server_session_delete(tls); } ssize_t esp_tls_get_bytes_avail(esp_tls_t *tls) { return _esp_tls_get_bytes_avail(tls); } void *esp_tls_get_ssl_context(esp_tls_t *tls) { return _esp_tls_get_ssl_context(tls); } esp_err_t esp_tls_get_conn_sockfd(esp_tls_t *tls, int *sockfd) { if (!tls || !sockfd) { ESP_LOGE(TAG, "Invalid arguments passed"); return ESP_ERR_INVALID_ARG; } *sockfd = tls->sockfd; return ESP_OK; } esp_err_t esp_tls_set_conn_sockfd(esp_tls_t *tls, int sockfd) { if (!tls || sockfd < 0) { ESP_LOGE(TAG, "Invalid arguments passed"); return ESP_ERR_INVALID_ARG; } tls->sockfd = sockfd; return ESP_OK; } esp_err_t esp_tls_get_conn_state(esp_tls_t *tls, esp_tls_conn_state_t *conn_state) { if (!tls || !conn_state) { ESP_LOGE(TAG, "Invalid arguments passed"); return ESP_ERR_INVALID_ARG; } *conn_state = tls->conn_state; return ESP_OK; } esp_err_t esp_tls_set_conn_state(esp_tls_t *tls, esp_tls_conn_state_t conn_state) { if (!tls || conn_state < ESP_TLS_INIT || conn_state > ESP_TLS_DONE) { ESP_LOGE(TAG, "Invalid arguments passed"); return ESP_ERR_INVALID_ARG; } tls->conn_state = conn_state; return ESP_OK; } esp_err_t esp_tls_get_and_clear_last_error(esp_tls_error_handle_t h, int *esp_tls_code, int *esp_tls_flags) { if (!h) { return ESP_ERR_INVALID_STATE; } esp_err_t last_err = h->last_error; if (esp_tls_code) { *esp_tls_code = h->esp_tls_error_code; } if (esp_tls_flags) { *esp_tls_flags = h->esp_tls_flags; } memset(h, 0, sizeof(esp_tls_last_error_t)); return last_err; } esp_err_t esp_tls_get_error_handle(esp_tls_t *tls, esp_tls_error_handle_t *error_handle) { if (!tls || !error_handle) { return ESP_ERR_INVALID_ARG; } *error_handle = tls->error_handle; return ESP_OK; } esp_err_t esp_tls_init_global_ca_store(void) { return _esp_tls_init_global_ca_store(); } esp_err_t esp_tls_set_global_ca_store(const unsigned char *cacert_pem_buf, const unsigned int cacert_pem_bytes) { return _esp_tls_set_global_ca_store(cacert_pem_buf, cacert_pem_bytes); } void esp_tls_free_global_ca_store(void) { return _esp_tls_free_global_ca_store(); }