159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
|
|
#include <sys/param.h>
|
|
#include "esp_mbedtls_dynamic_impl.h"
|
|
|
|
int __real_mbedtls_ssl_write(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len);
|
|
int __real_mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len);
|
|
void __real_mbedtls_ssl_free(mbedtls_ssl_context *ssl);
|
|
int __real_mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl);
|
|
int __real_mbedtls_ssl_setup(mbedtls_ssl_context *ssl, const mbedtls_ssl_config *conf);
|
|
int __real_mbedtls_ssl_send_alert_message(mbedtls_ssl_context *ssl, unsigned char level, unsigned char message);
|
|
int __real_mbedtls_ssl_close_notify(mbedtls_ssl_context *ssl);
|
|
|
|
int __wrap_mbedtls_ssl_write(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len);
|
|
int __wrap_mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len);
|
|
void __wrap_mbedtls_ssl_free(mbedtls_ssl_context *ssl);
|
|
int __wrap_mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl);
|
|
int __wrap_mbedtls_ssl_setup(mbedtls_ssl_context *ssl, const mbedtls_ssl_config *conf);
|
|
int __wrap_mbedtls_ssl_send_alert_message(mbedtls_ssl_context *ssl, unsigned char level, unsigned char message);
|
|
int __wrap_mbedtls_ssl_close_notify(mbedtls_ssl_context *ssl);
|
|
|
|
static const char *TAG = "SSL TLS";
|
|
|
|
static int tx_done(mbedtls_ssl_context *ssl)
|
|
{
|
|
if (!ssl->out_left)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rx_done(mbedtls_ssl_context *ssl)
|
|
{
|
|
if (!ssl->in_msglen) {
|
|
return 1;
|
|
}
|
|
|
|
ESP_LOGD(TAG, "RX left %d bytes", ssl->in_msglen);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_setup(mbedtls_ssl_context *ssl, const mbedtls_ssl_config *conf)
|
|
{
|
|
CHECK_OK(__real_mbedtls_ssl_setup(ssl, conf));
|
|
|
|
mbedtls_free(ssl->out_buf);
|
|
ssl->out_buf = NULL;
|
|
CHECK_OK(esp_mbedtls_setup_tx_buffer(ssl));
|
|
|
|
mbedtls_free(ssl->in_buf);
|
|
ssl->in_buf = NULL;
|
|
esp_mbedtls_setup_rx_buffer(ssl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_write(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len)
|
|
{
|
|
int ret;
|
|
|
|
CHECK_OK(esp_mbedtls_add_tx_buffer(ssl, 0));
|
|
|
|
ret = __real_mbedtls_ssl_write(ssl, buf, len);
|
|
|
|
if (tx_done(ssl)) {
|
|
CHECK_OK(esp_mbedtls_free_tx_buffer(ssl));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len)
|
|
{
|
|
int ret;
|
|
|
|
CHECK_OK(esp_mbedtls_add_rx_buffer(ssl));
|
|
|
|
ret = __real_mbedtls_ssl_read(ssl, buf, len);
|
|
|
|
if (rx_done(ssl)) {
|
|
CHECK_OK(esp_mbedtls_free_rx_buffer(ssl));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void __wrap_mbedtls_ssl_free(mbedtls_ssl_context *ssl)
|
|
{
|
|
if (ssl->out_buf) {
|
|
mbedtls_free(ssl->out_buf);
|
|
ssl->out_buf = NULL;
|
|
}
|
|
|
|
if (ssl->in_buf) {
|
|
mbedtls_free(ssl->in_buf);
|
|
ssl->in_buf = NULL;
|
|
}
|
|
|
|
__real_mbedtls_ssl_free(ssl);
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl)
|
|
{
|
|
CHECK_OK(esp_mbedtls_reset_add_tx_buffer(ssl));
|
|
|
|
CHECK_OK(esp_mbedtls_reset_add_rx_buffer(ssl));
|
|
|
|
CHECK_OK(__real_mbedtls_ssl_session_reset(ssl));
|
|
|
|
CHECK_OK(esp_mbedtls_reset_free_tx_buffer(ssl));
|
|
|
|
esp_mbedtls_reset_free_rx_buffer(ssl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_send_alert_message(mbedtls_ssl_context *ssl, unsigned char level, unsigned char message)
|
|
{
|
|
int ret;
|
|
|
|
CHECK_OK(esp_mbedtls_add_tx_buffer(ssl, 0));
|
|
|
|
ret = __real_mbedtls_ssl_send_alert_message(ssl, level, message);
|
|
|
|
if (tx_done(ssl)) {
|
|
CHECK_OK(esp_mbedtls_free_tx_buffer(ssl));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int __wrap_mbedtls_ssl_close_notify(mbedtls_ssl_context *ssl)
|
|
{
|
|
int ret;
|
|
|
|
CHECK_OK(esp_mbedtls_add_tx_buffer(ssl, 0));
|
|
|
|
ret = __real_mbedtls_ssl_close_notify(ssl);
|
|
|
|
if (tx_done(ssl)) {
|
|
CHECK_OK(esp_mbedtls_free_tx_buffer(ssl));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|