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feat(mbedtls): support rom mbedtls threading layer

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This commit is contained in:
Jiang Guang Ming 2024-09-04 20:27:58 +08:00
parent d0ec6fc04d
commit 5bb93061a3
5 changed files with 69 additions and 16 deletions
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9
components/mbedtls/CMakeLists.txt
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@ -12,6 +12,10 @@ endif()
set(mbedtls_srcs "")
set(mbedtls_include_dirs "port/include" "mbedtls/include" "mbedtls/library")
if(CONFIG_MBEDTLS_USE_CRYPTO_ROM_IMPL)
list(APPEND mbedtls_include_dirs "port/mbedtls_rom")
endif()
if(CONFIG_MBEDTLS_CERTIFICATE_BUNDLE)
list(APPEND mbedtls_srcs "esp_crt_bundle/esp_crt_bundle.c")
list(APPEND mbedtls_include_dirs "esp_crt_bundle/include")
@ -94,6 +98,11 @@ set(Python3_EXECUTABLE ${python})
# Needed to for include_next includes to work from within mbedtls
include_directories("${COMPONENT_DIR}/port/include")
# Needed to for mbedtls_rom includes to work from within mbedtls
if(CONFIG_MBEDTLS_USE_CRYPTO_ROM_IMPL)
include_directories("${COMPONENT_DIR}/port/mbedtls_rom")
endif()
# Import mbedtls library targets
add_subdirectory(mbedtls)

1
components/mbedtls/Kconfig
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@ -1147,6 +1147,7 @@ menu "mbedTLS"
select MBEDTLS_ROM_MD5
select MBEDTLS_HARDWARE_SHA
select MBEDTLS_ECP_RESTARTABLE
select MBEDTLS_THREADING_C
help
Enable this flag to use mbedtls crypto algorithm from ROM instead of ESP-IDF.

47
components/mbedtls/port/mbedtls_rom/mbedtls_rom_osi.c
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@ -19,9 +19,13 @@ void mbedtls_rom_osi_functions_init(void);
static void mbedtls_rom_mutex_init( mbedtls_threading_mutex_t *mutex )
{
#if (!defined(CONFIG_MBEDTLS_THREADING_C))
((void) mutex);
return;
if (mutex == NULL) {
return;
}
#if defined(MBEDTLS_THREADING_ALT)
mutex->mutex = xSemaphoreCreateMutex();
assert(mutex->mutex != NULL);
#else
mbedtls_mutex_init(mutex);
#endif
@ -29,9 +33,12 @@ static void mbedtls_rom_mutex_init( mbedtls_threading_mutex_t *mutex )
static void mbedtls_rom_mutex_free( mbedtls_threading_mutex_t *mutex )
{
#if (!defined(CONFIG_MBEDTLS_THREADING_C))
((void) mutex);
return;
if (mutex == NULL) {
return;
}
#if defined(MBEDTLS_THREADING_ALT)
vSemaphoreDelete(mutex->mutex);
#else
mbedtls_mutex_free(mutex);
#endif
@ -39,8 +46,14 @@ static void mbedtls_rom_mutex_free( mbedtls_threading_mutex_t *mutex )
static int mbedtls_rom_mutex_lock( mbedtls_threading_mutex_t *mutex )
{
#if (!defined(CONFIG_MBEDTLS_THREADING_C))
((void) mutex);
if (mutex == NULL) {
return MBEDTLS_ERR_THREADING_BAD_INPUT_DATA;
}
#if defined(MBEDTLS_THREADING_ALT)
if (xSemaphoreTake(mutex->mutex, portMAX_DELAY) != pdTRUE) {
return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
}
return 0;
#else
return mbedtls_mutex_lock(mutex);
@ -49,8 +62,14 @@ static int mbedtls_rom_mutex_lock( mbedtls_threading_mutex_t *mutex )
static int mbedtls_rom_mutex_unlock( mbedtls_threading_mutex_t *mutex )
{
#if (!defined(CONFIG_MBEDTLS_THREADING_C))
((void) mutex);
if (mutex == NULL) {
return MBEDTLS_ERR_THREADING_BAD_INPUT_DATA;
}
#if defined(MBEDTLS_THREADING_ALT)
if (xSemaphoreGive(mutex->mutex) != pdTRUE) {
return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
}
return 0;
#else
return mbedtls_mutex_unlock(mutex);
@ -430,11 +449,15 @@ __attribute__((constructor)) void mbedtls_rom_osi_functions_init(void)
/* Export the rom mbedtls functions table pointer */
extern void *mbedtls_rom_osi_funcs_ptr;
#if defined(MBEDTLS_THREADING_ALT)
mbedtls_threading_set_alt(mbedtls_rom_mutex_init, mbedtls_rom_mutex_free, mbedtls_rom_mutex_lock, mbedtls_rom_mutex_unlock);
#endif
unsigned chip_version = efuse_hal_chip_revision();
if ( ESP_CHIP_REV_ABOVE(chip_version, 200) ) {
/* Initialize the rom function mbedtls_threading_set_alt on chip rev2.0 with rom eco4 */
mbedtls_threading_set_alt_t mbedtls_threading_set_alt = (mbedtls_threading_set_alt_t)0x40002c0c;
mbedtls_threading_set_alt(mbedtls_rom_mutex_init, mbedtls_rom_mutex_free, mbedtls_rom_mutex_lock, mbedtls_rom_mutex_unlock);
_rom_mbedtls_threading_set_alt_t rom_mbedtls_threading_set_alt = (_rom_mbedtls_threading_set_alt_t)0x40002c0c;
rom_mbedtls_threading_set_alt(mbedtls_rom_mutex_init, mbedtls_rom_mutex_free, mbedtls_rom_mutex_lock, mbedtls_rom_mutex_unlock);
/* Initialize the pointer of rom eco4 mbedtls functions table. */
mbedtls_rom_osi_funcs_ptr = (mbedtls_rom_eco4_funcs_t *)&mbedtls_rom_eco4_funcs_table;

6
components/mbedtls/port/mbedtls_rom/mbedtls_rom_osi.h
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@ -44,12 +44,10 @@ extern "C" {
#endif
#if (!defined(CONFIG_MBEDTLS_THREADING_C))
typedef struct mbedtls_threading_mutex_t {
int dummy;
} mbedtls_threading_mutex_t;
#error CONFIG_MBEDTLS_THREADING_C
#endif
typedef void (*mbedtls_threading_set_alt_t)(void (*mutex_init)(mbedtls_threading_mutex_t *),
typedef void (*_rom_mbedtls_threading_set_alt_t)(void (*mutex_init)(mbedtls_threading_mutex_t *),
void (*mutex_free)(mbedtls_threading_mutex_t *),
int (*mutex_lock)(mbedtls_threading_mutex_t *),
int (*mutex_unlock)(mbedtls_threading_mutex_t *));

22
components/mbedtls/port/mbedtls_rom/threading_alt.h Normal file
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@ -0,0 +1,22 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
typedef struct mbedtls_threading_mutex_t {
SemaphoreHandle_t mutex;
/* is_valid is 0 after a failed init or a free, and nonzero after a
* successful init. This field is not considered part of the public
* API of Mbed TLS and may change without notice. */
char is_valid;
} mbedtls_threading_mutex_t;
extern void mbedtls_threading_set_alt(void (*mutex_init)(mbedtls_threading_mutex_t *),
void (*mutex_free)(mbedtls_threading_mutex_t *),
int (*mutex_lock)(mbedtls_threading_mutex_t *),
int (*mutex_unlock)(mbedtls_threading_mutex_t *));