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fix(esp-tls): async server_session_create for esp_tls and wolfssl

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This commit is contained in:
thetek42 2024-09-30 08:48:41 +02:00
parent 07ff5af5dc
commit 68aa450503
4 changed files with 72 additions and 18 deletions
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20
components/esp-tls/esp_tls.c
View File

@ -73,6 +73,8 @@ static const char *TAG = "esp-tls";
#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_init esp_mbedtls_server_session_init
#define _esp_tls_server_session_continue_async esp_mbedtls_server_session_continue_async
#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
@ -90,6 +92,8 @@ static const char *TAG = "esp-tls";
#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_init esp_wolfssl_server_session_init
#define _esp_tls_server_session_continue_async esp_wolfssl_server_session_continue_async
#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
@ -703,6 +707,22 @@ int esp_tls_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls
{
return _esp_tls_server_session_create(cfg, sockfd, tls);
}
/**
* @brief Initialization part of esp_tls_server_session_create
*/
int esp_tls_server_session_init(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
{
return _esp_tls_server_session_init(cfg, sockfd, tls);
}
/**
* @brief Asynchronous continue of esp_tls_server_session_create, to be
* called in a loop by the user until it returns 0,
* ESP_TLS_ERR_SSL_WANT_READ or ESP_TLS_ERR_SSL_WANT_WRITE
*/
int esp_tls_server_session_continue_async(esp_tls_t *tls)
{
return _esp_tls_server_session_continue_async(tls);
}
/**
* @brief Close the server side TLS/SSL connection and free any allocated resources.
*/

14
components/esp-tls/esp_tls_mbedtls.c
View File

@ -789,7 +789,7 @@ esp_err_t set_client_config(const char *hostname, size_t hostlen, esp_tls_cfg_t
#endif
#ifdef CONFIG_ESP_TLS_CLIENT_SESSION_TICKETS
} else if (cfg->client_session != NULL) {
ESP_LOGD(TAG, "Resuing the saved client session");
ESP_LOGD(TAG, "Reusing the saved client session");
#endif
} else {
#ifdef CONFIG_ESP_TLS_SKIP_SERVER_CERT_VERIFY
@ -916,8 +916,10 @@ esp_err_t set_client_config(const char *hostname, size_t hostlen, esp_tls_cfg_t
int esp_mbedtls_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
{
int ret = 0;
if ((ret = esp_mbedtls_server_session_create_start(cfg, sockfd, tls)) != 0) return ret;
while ((ret = esp_mbedtls_server_session_create_continue_async(tls)) != 0) {
if ((ret = esp_mbedtls_server_session_init(cfg, sockfd, tls)) != 0) {
return ret;
}
while ((ret = esp_mbedtls_server_session_continue_async(tls)) != 0) {
if (ret != ESP_TLS_ERR_SSL_WANT_READ && ret != ESP_TLS_ERR_SSL_WANT_WRITE) {
return ret;
}
@ -928,7 +930,7 @@ int esp_mbedtls_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp
/**
* @brief Initialization part of esp_mbedtls_server_session_create
*/
int esp_mbedtls_server_session_create_start(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
int esp_mbedtls_server_session_init(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
{
if (tls == NULL || cfg == NULL) {
return -1;
@ -951,11 +953,11 @@ int esp_mbedtls_server_session_create_start(esp_tls_cfg_server_t *cfg, int sockf
}
/**
* @brief Asyncronous continue of esp_mbedtls_server_session_create, to be
* @brief Asynchronous continue of esp_mbedtls_server_session_create, to be
* called in a loop by the user until it returns 0, ESP_TLS_ERR_SSL_WANT_READ
* or ESP_TLS_ERR_SSL_WANT_WRITE
*/
int esp_mbedtls_server_session_create_continue_async(esp_tls_t *tls)
int esp_mbedtls_server_session_continue_async(esp_tls_t *tls)
{
int ret = mbedtls_ssl_handshake(&tls->ssl);
if (ret != 0 && ret != ESP_TLS_ERR_SSL_WANT_READ && ret != ESP_TLS_ERR_SSL_WANT_WRITE) {

42
components/esp-tls/esp_tls_wolfssl.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -504,6 +504,23 @@ void esp_wolfssl_cleanup(esp_tls_t *tls)
* @brief Create TLS/SSL server session
*/
int esp_wolfssl_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
{
int ret = 0;
if ((ret = esp_wolfssl_server_session_init(cfg, sockfd, tls)) != 0) {
return ret;
}
while ((ret = esp_mbedtls_server_session_continue_async(tls)) != 0) {
if (ret != ESP_TLS_ERR_SSL_WANT_READ && ret != ESP_TLS_ERR_SSL_WANT_WRITE) {
return -1;
}
}
return 0;
}
/**
* @brief Initialization part of esp_wolfssl_server_session_create
*/
int esp_wolfssl_server_session_init(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls)
{
if (tls == NULL || cfg == NULL) {
return -1;
@ -521,15 +538,30 @@ int esp_wolfssl_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp
}
tls->read = esp_wolfssl_read;
tls->write = esp_wolfssl_write;
int ret;
while ((ret = wolfSSL_accept((WOLFSSL *)tls->priv_ssl)) != WOLFSSL_SUCCESS) {
return 0;
}
/**
* @brief Asynchronous continue of esp_wolfssl_server_session_create, to be
* called in a loop by the user until it returns 0, ESP_TLS_ERR_SSL_WANT_READ
* or ESP_TLS_ERR_SSL_WANT_WRITE
*/
int esp_wolfssl_server_session_continue_async(esp_tls_t *tls)
{
int ret = wolfSSL_accept((WOLFSSL *)tls->priv_ssl);
if (ret != WOLFSSL_SUCCESS) {
int err = wolfSSL_get_error((WOLFSSL *)tls->priv_ssl, ret);
if (err != WOLFSSL_ERROR_WANT_READ && ret != WOLFSSL_ERROR_WANT_WRITE) {
switch (err) {
case WOLFSSL_ERROR_WANT_READ:
return ESP_TLS_SSL_ERR_WANT_READ;
case WOLFSSL_ERROR_WANT_WRITE:
return ESP_TLS_SSL_ERR_WANT_WRITE;
default:
ESP_INT_EVENT_TRACKER_CAPTURE(tls->error_handle, ESP_TLS_ERR_TYPE_WOLFSSL, err);
ESP_LOGE(TAG, "wolfSSL_accept returned %d, error code: %d", ret, err);
wolfssl_print_error_msg(err);
tls->conn_state = ESP_TLS_FAIL;
return -1;
return err;
}
}
return 0;

4
components/esp-tls/private_include/esp_tls_mbedtls.h
View File

@ -74,7 +74,7 @@ int esp_mbedtls_server_session_create(esp_tls_cfg_server_t *cfg, int sockfd, esp
*
* /note :- The function can only be used with mbedtls ssl library
*/
int esp_mbedtls_server_session_create_start(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls);
int esp_mbedtls_server_session_init(esp_tls_cfg_server_t *cfg, int sockfd, esp_tls_t *tls);
/**
* Asynchronous continue of internal callback for mbedtls_server_session_create,
@ -83,7 +83,7 @@ int esp_mbedtls_server_session_create_start(esp_tls_cfg_server_t *cfg, int sockf
*
* /note :- The function can only be used with mbedtls ssl library
*/
int esp_mbedtls_server_session_create_continue_async(esp_tls_t *tls);
int esp_mbedtls_server_session_continue_async(esp_tls_t *tls);
/**
* Internal Callback for mbedtls_server_session_delete