sandbox / mbedtls

mbedtls ported to mbed-classic

Fork of mbedtls by Christopher Haster

source/threading.c@4:bef26f687287, 2016-04-07 (annotated)

Committer:
Brian Daniels
Date:
Thu Apr 07 11:11:18 2016 +0100
Revision:
4:bef26f687287
Parent:
1:24750b9ad5ef 
Adding ported selftest test case

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 1:24750b9ad5ef 1 /*
Christopher Haster 1:24750b9ad5ef 2 * Threading abstraction layer
Christopher Haster 1:24750b9ad5ef 3 *
Christopher Haster 1:24750b9ad5ef 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
Christopher Haster 1:24750b9ad5ef 5 * SPDX-License-Identifier: Apache-2.0
Christopher Haster 1:24750b9ad5ef 6 *
Christopher Haster 1:24750b9ad5ef 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Christopher Haster 1:24750b9ad5ef 8 * not use this file except in compliance with the License.
Christopher Haster 1:24750b9ad5ef 9 * You may obtain a copy of the License at
Christopher Haster 1:24750b9ad5ef 10 *
Christopher Haster 1:24750b9ad5ef 11 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 1:24750b9ad5ef 12 *
Christopher Haster 1:24750b9ad5ef 13 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 1:24750b9ad5ef 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Christopher Haster 1:24750b9ad5ef 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 1:24750b9ad5ef 16 * See the License for the specific language governing permissions and
Christopher Haster 1:24750b9ad5ef 17 * limitations under the License.
Christopher Haster 1:24750b9ad5ef 18 *
Christopher Haster 1:24750b9ad5ef 19 * This file is part of mbed TLS (https://tls.mbed.org)
Christopher Haster 1:24750b9ad5ef 20 */
Christopher Haster 1:24750b9ad5ef 21
Christopher Haster 1:24750b9ad5ef 22 #if !defined(MBEDTLS_CONFIG_FILE)
Christopher Haster 1:24750b9ad5ef 23 #include "mbedtls/config.h"
Christopher Haster 1:24750b9ad5ef 24 #else
Christopher Haster 1:24750b9ad5ef 25 #include MBEDTLS_CONFIG_FILE
Christopher Haster 1:24750b9ad5ef 26 #endif
Christopher Haster 1:24750b9ad5ef 27
Christopher Haster 1:24750b9ad5ef 28 #if defined(MBEDTLS_THREADING_C)
Christopher Haster 1:24750b9ad5ef 29
Christopher Haster 1:24750b9ad5ef 30 #include "mbedtls/threading.h"
Christopher Haster 1:24750b9ad5ef 31
Christopher Haster 1:24750b9ad5ef 32 #if defined(MBEDTLS_THREADING_PTHREAD)
Christopher Haster 1:24750b9ad5ef 33 static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 34 {
Christopher Haster 1:24750b9ad5ef 35 if( mutex == NULL )
Christopher Haster 1:24750b9ad5ef 36 return;
Christopher Haster 1:24750b9ad5ef 37
Christopher Haster 1:24750b9ad5ef 38 mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0;
Christopher Haster 1:24750b9ad5ef 39 }
Christopher Haster 1:24750b9ad5ef 40
Christopher Haster 1:24750b9ad5ef 41 static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 42 {
Christopher Haster 1:24750b9ad5ef 43 if( mutex == NULL )
Christopher Haster 1:24750b9ad5ef 44 return;
Christopher Haster 1:24750b9ad5ef 45
Christopher Haster 1:24750b9ad5ef 46 (void) pthread_mutex_destroy( &mutex->mutex );
Christopher Haster 1:24750b9ad5ef 47 }
Christopher Haster 1:24750b9ad5ef 48
Christopher Haster 1:24750b9ad5ef 49 static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 50 {
Christopher Haster 1:24750b9ad5ef 51 if( mutex == NULL || ! mutex->is_valid )
Christopher Haster 1:24750b9ad5ef 52 return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
Christopher Haster 1:24750b9ad5ef 53
Christopher Haster 1:24750b9ad5ef 54 if( pthread_mutex_lock( &mutex->mutex ) != 0 )
Christopher Haster 1:24750b9ad5ef 55 return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
Christopher Haster 1:24750b9ad5ef 56
Christopher Haster 1:24750b9ad5ef 57 return( 0 );
Christopher Haster 1:24750b9ad5ef 58 }
Christopher Haster 1:24750b9ad5ef 59
Christopher Haster 1:24750b9ad5ef 60 static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 61 {
Christopher Haster 1:24750b9ad5ef 62 if( mutex == NULL || ! mutex->is_valid )
Christopher Haster 1:24750b9ad5ef 63 return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
Christopher Haster 1:24750b9ad5ef 64
Christopher Haster 1:24750b9ad5ef 65 if( pthread_mutex_unlock( &mutex->mutex ) != 0 )
Christopher Haster 1:24750b9ad5ef 66 return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
Christopher Haster 1:24750b9ad5ef 67
Christopher Haster 1:24750b9ad5ef 68 return( 0 );
Christopher Haster 1:24750b9ad5ef 69 }
Christopher Haster 1:24750b9ad5ef 70
Christopher Haster 1:24750b9ad5ef 71 void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread;
Christopher Haster 1:24750b9ad5ef 72 void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread;
Christopher Haster 1:24750b9ad5ef 73 int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread;
Christopher Haster 1:24750b9ad5ef 74 int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread;
Christopher Haster 1:24750b9ad5ef 75
Christopher Haster 1:24750b9ad5ef 76 /*
Christopher Haster 1:24750b9ad5ef 77 * With phtreads we can statically initialize mutexes
Christopher Haster 1:24750b9ad5ef 78 */
Christopher Haster 1:24750b9ad5ef 79 #define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 }
Christopher Haster 1:24750b9ad5ef 80
Christopher Haster 1:24750b9ad5ef 81 #endif /* MBEDTLS_THREADING_PTHREAD */
Christopher Haster 1:24750b9ad5ef 82
Christopher Haster 1:24750b9ad5ef 83 #if defined(MBEDTLS_THREADING_ALT)
Christopher Haster 1:24750b9ad5ef 84 static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 85 {
Christopher Haster 1:24750b9ad5ef 86 ((void) mutex );
Christopher Haster 1:24750b9ad5ef 87 return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
Christopher Haster 1:24750b9ad5ef 88 }
Christopher Haster 1:24750b9ad5ef 89 static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex )
Christopher Haster 1:24750b9ad5ef 90 {
Christopher Haster 1:24750b9ad5ef 91 ((void) mutex );
Christopher Haster 1:24750b9ad5ef 92 return;
Christopher Haster 1:24750b9ad5ef 93 }
Christopher Haster 1:24750b9ad5ef 94
Christopher Haster 1:24750b9ad5ef 95 void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
Christopher Haster 1:24750b9ad5ef 96 void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
Christopher Haster 1:24750b9ad5ef 97 int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
Christopher Haster 1:24750b9ad5ef 98 int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
Christopher Haster 1:24750b9ad5ef 99
Christopher Haster 1:24750b9ad5ef 100 /*
Christopher Haster 1:24750b9ad5ef 101 * Set functions pointers and initialize global mutexes
Christopher Haster 1:24750b9ad5ef 102 */
Christopher Haster 1:24750b9ad5ef 103 void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
Christopher Haster 1:24750b9ad5ef 104 void (*mutex_free)( mbedtls_threading_mutex_t * ),
Christopher Haster 1:24750b9ad5ef 105 int (*mutex_lock)( mbedtls_threading_mutex_t * ),
Christopher Haster 1:24750b9ad5ef 106 int (*mutex_unlock)( mbedtls_threading_mutex_t * ) )
Christopher Haster 1:24750b9ad5ef 107 {
Christopher Haster 1:24750b9ad5ef 108 mbedtls_mutex_init = mutex_init;
Christopher Haster 1:24750b9ad5ef 109 mbedtls_mutex_free = mutex_free;
Christopher Haster 1:24750b9ad5ef 110 mbedtls_mutex_lock = mutex_lock;
Christopher Haster 1:24750b9ad5ef 111 mbedtls_mutex_unlock = mutex_unlock;
Christopher Haster 1:24750b9ad5ef 112
Christopher Haster 1:24750b9ad5ef 113 mbedtls_mutex_init( &mbedtls_threading_readdir_mutex );
Christopher Haster 1:24750b9ad5ef 114 mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex );
Christopher Haster 1:24750b9ad5ef 115 }
Christopher Haster 1:24750b9ad5ef 116
Christopher Haster 1:24750b9ad5ef 117 /*
Christopher Haster 1:24750b9ad5ef 118 * Free global mutexes
Christopher Haster 1:24750b9ad5ef 119 */
Christopher Haster 1:24750b9ad5ef 120 void mbedtls_threading_free_alt( void )
Christopher Haster 1:24750b9ad5ef 121 {
Christopher Haster 1:24750b9ad5ef 122 mbedtls_mutex_free( &mbedtls_threading_readdir_mutex );
Christopher Haster 1:24750b9ad5ef 123 mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex );
Christopher Haster 1:24750b9ad5ef 124 }
Christopher Haster 1:24750b9ad5ef 125 #endif /* MBEDTLS_THREADING_ALT */
Christopher Haster 1:24750b9ad5ef 126
Christopher Haster 1:24750b9ad5ef 127 /*
Christopher Haster 1:24750b9ad5ef 128 * Define global mutexes
Christopher Haster 1:24750b9ad5ef 129 */
Christopher Haster 1:24750b9ad5ef 130 #ifndef MUTEX_INIT
Christopher Haster 1:24750b9ad5ef 131 #define MUTEX_INIT
Christopher Haster 1:24750b9ad5ef 132 #endif
Christopher Haster 1:24750b9ad5ef 133 mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT;
Christopher Haster 1:24750b9ad5ef 134 mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT;
Christopher Haster 1:24750b9ad5ef 135
Christopher Haster 1:24750b9ad5ef 136 #endif /* MBEDTLS_THREADING_C */