mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-25 19:35:39 +01:00
a2947ac7bb
As a result, the copyright of contributors other than Arm is now
acknowledged, and the years of publishing are no longer tracked in the
source files.
Also remove the now-redundant lines declaring that the files are part of
MbedTLS.
This commit was generated using the following script:
# ========================
#!/bin/sh
# Find files
find '(' -path './.git' -o -path './3rdparty' ')' -prune -o -type f -print | xargs sed -bi '
# Replace copyright attribution line
s/Copyright.*Arm.*/Copyright The Mbed TLS Contributors/I
# Remove redundant declaration and the preceding line
$!N
/This file is part of Mbed TLS/Id
P
D
'
# ========================
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
213 lines
6.8 KiB
C
213 lines
6.8 KiB
C
/*
|
|
* Threading abstraction layer
|
|
*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
|
|
*
|
|
* This file is provided under the Apache License 2.0, or the
|
|
* GNU General Public License v2.0 or later.
|
|
*
|
|
* **********
|
|
* Apache License 2.0:
|
|
*
|
|
* 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
|
|
* limitations under the License.
|
|
*
|
|
* **********
|
|
*
|
|
* **********
|
|
* GNU General Public License v2.0 or later:
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* **********
|
|
*/
|
|
|
|
/*
|
|
* Ensure gmtime_r is available even with -std=c99; must be defined before
|
|
* config.h, which pulls in glibc's features.h. Harmless on other platforms.
|
|
*/
|
|
#if !defined(_POSIX_C_SOURCE)
|
|
#define _POSIX_C_SOURCE 200112L
|
|
#endif
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_THREADING_C)
|
|
|
|
#include "mbedtls/threading.h"
|
|
|
|
#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
|
|
|
|
#if !defined(_WIN32) && (defined(unix) || \
|
|
defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
|
|
defined(__MACH__)))
|
|
#include <unistd.h>
|
|
#endif /* !_WIN32 && (unix || __unix || __unix__ ||
|
|
* (__APPLE__ && __MACH__)) */
|
|
|
|
#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
|
|
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
|
|
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) )
|
|
/*
|
|
* This is a convenience shorthand macro to avoid checking the long
|
|
* preprocessor conditions above. Ideally, we could expose this macro in
|
|
* platform_util.h and simply use it in platform_util.c, threading.c and
|
|
* threading.h. However, this macro is not part of the Mbed TLS public API, so
|
|
* we keep it private by only defining it in this file
|
|
*/
|
|
|
|
#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
|
|
#define THREADING_USE_GMTIME
|
|
#endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */
|
|
|
|
#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
|
|
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
|
|
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) ) */
|
|
|
|
#endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */
|
|
|
|
#if defined(MBEDTLS_THREADING_PTHREAD)
|
|
static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
if( mutex == NULL )
|
|
return;
|
|
|
|
mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0;
|
|
}
|
|
|
|
static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
if( mutex == NULL || !mutex->is_valid )
|
|
return;
|
|
|
|
(void) pthread_mutex_destroy( &mutex->mutex );
|
|
mutex->is_valid = 0;
|
|
}
|
|
|
|
static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
if( mutex == NULL || ! mutex->is_valid )
|
|
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
|
|
|
|
if( pthread_mutex_lock( &mutex->mutex ) != 0 )
|
|
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
if( mutex == NULL || ! mutex->is_valid )
|
|
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
|
|
|
|
if( pthread_mutex_unlock( &mutex->mutex ) != 0 )
|
|
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread;
|
|
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread;
|
|
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread;
|
|
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread;
|
|
|
|
/*
|
|
* With phtreads we can statically initialize mutexes
|
|
*/
|
|
#define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 }
|
|
|
|
#endif /* MBEDTLS_THREADING_PTHREAD */
|
|
|
|
#if defined(MBEDTLS_THREADING_ALT)
|
|
static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
((void) mutex );
|
|
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
|
|
}
|
|
static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex )
|
|
{
|
|
((void) mutex );
|
|
return;
|
|
}
|
|
|
|
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
|
|
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
|
|
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
|
|
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
|
|
|
|
/*
|
|
* Set functions pointers and initialize global mutexes
|
|
*/
|
|
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 * ) )
|
|
{
|
|
mbedtls_mutex_init = mutex_init;
|
|
mbedtls_mutex_free = mutex_free;
|
|
mbedtls_mutex_lock = mutex_lock;
|
|
mbedtls_mutex_unlock = mutex_unlock;
|
|
|
|
#if defined(MBEDTLS_FS_IO)
|
|
mbedtls_mutex_init( &mbedtls_threading_readdir_mutex );
|
|
#endif
|
|
#if defined(THREADING_USE_GMTIME)
|
|
mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex );
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Free global mutexes
|
|
*/
|
|
void mbedtls_threading_free_alt( void )
|
|
{
|
|
#if defined(MBEDTLS_FS_IO)
|
|
mbedtls_mutex_free( &mbedtls_threading_readdir_mutex );
|
|
#endif
|
|
#if defined(THREADING_USE_GMTIME)
|
|
mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex );
|
|
#endif
|
|
}
|
|
#endif /* MBEDTLS_THREADING_ALT */
|
|
|
|
/*
|
|
* Define global mutexes
|
|
*/
|
|
#ifndef MUTEX_INIT
|
|
#define MUTEX_INIT
|
|
#endif
|
|
#if defined(MBEDTLS_FS_IO)
|
|
mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT;
|
|
#endif
|
|
#if defined(THREADING_USE_GMTIME)
|
|
mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT;
|
|
#endif
|
|
|
|
#endif /* MBEDTLS_THREADING_C */
|