使用Nucleo-F767ZI + FreeRTOS + LWIP + mbedtls生成STM32CubeMX失败怎么解决？

问答对人有帮助，内容完整，我也想知道答案 0 亲爱的大家，我正在使用 Nucleo-F767ZI + FreeRTOS + LWIP + mbedtls 生成我的 STM32CubeMX（最新版本）。当我使用我的代码使用 HTTPS 连接并将数据发送到www.google.com时，一切正常，但是当使用相同的代码使用 HTTPS 连接到httpbin.org时，代码在返回的函数mbedtls_ssl_handshake(&ssl)中失败代码76（它也是返回代码函数mbedtls_net_recv()）。失败发生在函数*int mbedtls_ssl_handshake_client_step(mbedtls_ssl_context ssl)步骤MBEDTLS_SSL_SERVER_HELLO*中。我的代码如下： void tcp_client_deinit(void) { uart_print("Deinitrn"); // mbedtls_net_free(&server_fd); mbedtls_ssl_free(&ssl); mbedtls_ssl_config_free(&conf); mbedtls_ctr_drbg_free(&ctr_drbg); mbedtls_entropy_free(&entropy); mbedtls_x509_crt_free(&cacert); } void tcp_client_init(void) { // mbedtls_net_init(&server_fd); while ((gnetif.ip_addr.addr == 0) \|\| (gnetif.netmask.addr == 0) \|\| (gnetif.gw.addr == 0)) { } #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) mbedtls_memory_buffer_alloc_init(alloc_buf, sizeof(alloc_buf)); #endif uart_print("DHCP OK!rn"); mbedtls_ssl_init(&ssl); mbedtls_ssl_config_init(&conf); mbedtls_x509_crt_init(&cacert); mbedtls_ctr_drbg_init(&ctr_drbg); uart_print("Seeding the random number generator...rn"); mbedtls_entropy_init(&entropy); if (0 != mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy, (const unsigned char )pers, strlen(pers))) { uart_print("Seeding random number generator failed!rn"); tcp_client_deinit(); } uart_print("Loading the CA root certificate...rn"); if (0 > mbedtls_x509_crt_parse(&cacert, (const unsigned char )ca, calen)) { uart_print("Loading CA root certificate failedrn"); tcp_client_deinit(); } mbedtls_ssl_set_bio(&ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL); uart_print("TCP client initialized!rn"); } /* * @brief Connects to the TCP echo server * @param None * @retval None / void tcp_client_handle(void) { s32_t ret; u32_t verify_flags; u32_t time_out = 0; u8_t verify_buf[256]; uart_print("Connecting to: %s Port: %srn", SERVER_NAME, SERVER_PORT); time_out = osKernelSysTick(); while (0 != mbedtls_net_connect(&server_fd, SERVER_NAME, SERVER_PORT, MBEDTLS_NET_PROTO_TCP)) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Failed to connect to serverrn"); return; } } uart_print("Network successfully connected!rn"); if (0 != mbedtls_ssl_config_defaults(&conf, MBEDTLS_SSL_IS_CLIENT, MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT)) { uart_print("SSL config failedrn"); return; } uart_print("SSL successfully configured!rn"); mbedtls_ssl_conf_authmode(&conf, MBEDTLS_SSL_VERIFY_OPTIONAL); mbedtls_ssl_conf_ca_chain(&conf, &cacert, NULL); mbedtls_ssl_conf_rng(&conf, mbedtls_ctr_drbg_random, &ctr_drbg); if (0 != mbedtls_ssl_setup(&ssl, &conf)) { uart_print("SSL setup failedrn"); return; } if (0 != mbedtls_ssl_set_hostname(&ssl, SERVER_NAME)) { uart_print("Hostname setup failedrn"); return; } uart_print("Performing handshakern"); time_out = osKernelSysTick(); while (0 != (ret = mbedtls_ssl_handshake(&ssl))) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Handshake failed, error %drn", ret); return; // break; } } uart_print("Handshake succeededrn"); uart_print("Verifying peer X.509 certificate...rn"); if (0 != (verify_flags = mbedtls_ssl_get_verify_result(&ssl))) { mbedtls_x509_crt_verify_info((char )verify_buf, sizeof(verify_buf), " ! ", verify_flags); uart_print("Failed to verify certificate, reason: %srn", verify_buf); // return; } else { uart_print("Certificate verifiedrn"); } uart_print(" > Write to the serverrn"); sprintf((char )data_buffer, "%s", GET_REQUEST); time_out = osKernelSysTick(); while (0 > mbedtls_ssl_write(&ssl, data_buffer, strlen((const char )data_buffer))) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Write failedrn"); return; } } memset(data_buffer, 0, SIZE(data_buffer)); uart_print(" < Read from the serverrn"); time_out = osKernelSysTick(); while (0 != mbedtls_ssl_read(&ssl, data_buffer, SIZE(data_buffer))) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Read failedrn"); return; } } uart_print("%srn", data_buffer); uart_print("Closing connectionrn"); time_out = osKernelSysTick(); while (0 != mbedtls_ssl_close_notify(&ssl)) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Failed to close connectionrn"); return; } } uart_print("Reset connectionrn"); time_out = osKernelSysTick(); while (0 != (ret = mbedtls_ssl_session_reset(&ssl))) { if ((uint32_t)(osKernelSysTick() - time_out) > 8192) { uart_print("Connection reset failedrn"); return; } } } 你能给我任何关于如何解决这个问题或者是什么原因的建议吗？ 0
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