SNI support (#592)
Server Name Indication (SNI) support for WiFiClientSecure Fix https://github.com/espressif/arduino-esp32/issues/571 and https://github.com/espressif/arduino-esp32/issues/550
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@ -97,7 +97,12 @@ int WiFiClientSecure::connect(const char *host, uint16_t port)
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int WiFiClientSecure::connect(IPAddress ip, uint16_t port, const char *_CA_cert, const char *_cert, const char *_private_key)
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{
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int ret = start_ssl_client(sslclient, ip, port, _CA_cert, _cert, _private_key);
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return connect(ip.toString().c_str(), port, _CA_cert, _cert, _private_key);
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}
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int WiFiClientSecure::connect(const char *host, uint16_t port, const char *_CA_cert, const char *_cert, const char *_private_key)
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{
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int ret = start_ssl_client(sslclient, host, port, _CA_cert, _cert, _private_key);
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if (ret < 0) {
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log_e("lwip_connect_r: %d", errno);
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stop();
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@ -107,18 +112,6 @@ int WiFiClientSecure::connect(IPAddress ip, uint16_t port, const char *_CA_cert,
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return 1;
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}
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int WiFiClientSecure::connect(const char *host, uint16_t port, const char *_CA_cert, const char *_cert, const char *_private_key)
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{
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struct hostent *server;
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server = gethostbyname(host);
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if (server == NULL) {
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return 0;
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}
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IPAddress srv((const uint8_t *)(server->h_addr));
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return connect(srv, port, _CA_cert, _cert, _private_key);
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}
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size_t WiFiClientSecure::write(uint8_t data)
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{
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return write(&data, 1);
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@ -37,7 +37,7 @@ void ssl_init(sslclient_context *ssl_client)
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}
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int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t port, const char *rootCABuff, const char *cli_cert, const char *cli_key)
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int start_ssl_client(sslclient_context *ssl_client, const char *host, uint32_t port, const char *rootCABuff, const char *cli_cert, const char *cli_key)
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{
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char buf[512];
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int ret, flags, len, timeout;
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@ -53,10 +53,17 @@ int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t
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return ssl_client->socket;
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}
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struct hostent *server;
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server = gethostbyname(host);
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if (server == NULL) {
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return 0;
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}
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IPAddress srv((const uint8_t *)(server->h_addr));
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struct sockaddr_in serv_addr;
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memset(&serv_addr, 0, sizeof(serv_addr));
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serv_addr.sin_family = AF_INET;
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serv_addr.sin_addr.s_addr = ipAddress;
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serv_addr.sin_addr.s_addr = srv;
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serv_addr.sin_port = htons(port);
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if (lwip_connect(ssl_client->socket, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) == 0) {
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@ -90,9 +97,9 @@ int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t
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return handle_error(ret);
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}
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/* MBEDTLS_SSL_VERIFY_REQUIRED if a CA certificate is defined on Arduino IDE and
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MBEDTLS_SSL_VERIFY_NONE if not.
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*/
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// MBEDTLS_SSL_VERIFY_REQUIRED if a CA certificate is defined on Arduino IDE and
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// MBEDTLS_SSL_VERIFY_NONE if not.
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if (rootCABuff != NULL) {
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log_i("Loading CA cert");
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mbedtls_x509_crt_init(&ssl_client->ca_cert);
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@ -129,18 +136,12 @@ int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t
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mbedtls_ssl_conf_own_cert(&ssl_client->ssl_conf, &ssl_client->client_cert, &ssl_client->client_key);
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}
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/*
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// TODO: implement match CN verification
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log_i("Setting hostname for TLS session...");
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log_i("Setting hostname for TLS session...");
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// Hostname set here should match CN in server certificate
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if((ret = mbedtls_ssl_set_hostname(&ssl_client->ssl_ctx, host)) != 0)
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{
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return handle_error(ret);
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}
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*/
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// Hostname set here should match CN in server certificate
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if((ret = mbedtls_ssl_set_hostname(&ssl_client->ssl_ctx, host)) != 0){
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return handle_error(ret);
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}
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mbedtls_ssl_conf_rng(&ssl_client->ssl_conf, mbedtls_ctr_drbg_random, &ssl_client->drbg_ctx);
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@ -221,7 +222,7 @@ int data_to_read(sslclient_context *ssl_client)
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ret = mbedtls_ssl_read(&ssl_client->ssl_ctx, NULL, 0);
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//log_e("RET: %i",ret); //for low level debug
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res = mbedtls_ssl_get_bytes_avail(&ssl_client->ssl_ctx);
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//log_e("RES: %i",res);
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//log_e("RES: %i",res); //for low level debug
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if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE && ret < 0) {
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return handle_error(ret);
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}
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@ -27,7 +27,7 @@ typedef struct sslclient_context {
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void ssl_init(sslclient_context *ssl_client);
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int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t port, const char *rootCABuff, const char *cli_cert, const char *cli_key);
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int start_ssl_client(sslclient_context *ssl_client, const char *host, uint32_t port, const char *rootCABuff, const char *cli_cert, const char *cli_key);
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void stop_ssl_socket(sslclient_context *ssl_client, const char *rootCABuff, const char *cli_cert, const char *cli_key);
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int data_to_read(sslclient_context *ssl_client);
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int send_ssl_data(sslclient_context *ssl_client, const uint8_t *data, uint16_t len);
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