Xuyi Wang / wolfSSL

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wolfcrypt/src/memory.c@0:d92f9d21154c, 2015-06-26 (annotated)

Committer:
wolfSSL
Date:
Fri Jun 26 00:39:20 2015 +0000
Revision:
0:d92f9d21154c
wolfSSL 3.6.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 0:d92f9d21154c 1 /* memory.c
wolfSSL 0:d92f9d21154c 2 *
wolfSSL 0:d92f9d21154c 3 * Copyright (C) 2006-2015 wolfSSL Inc.
wolfSSL 0:d92f9d21154c 4 *
wolfSSL 0:d92f9d21154c 5 * This file is part of wolfSSL. (formerly known as CyaSSL)
wolfSSL 0:d92f9d21154c 6 *
wolfSSL 0:d92f9d21154c 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 0:d92f9d21154c 8 * it under the terms of the GNU General Public License as published by
wolfSSL 0:d92f9d21154c 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 0:d92f9d21154c 10 * (at your option) any later version.
wolfSSL 0:d92f9d21154c 11 *
wolfSSL 0:d92f9d21154c 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 0:d92f9d21154c 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 0:d92f9d21154c 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 0:d92f9d21154c 15 * GNU General Public License for more details.
wolfSSL 0:d92f9d21154c 16 *
wolfSSL 0:d92f9d21154c 17 * You should have received a copy of the GNU General Public License
wolfSSL 0:d92f9d21154c 18 * along with this program; if not, write to the Free Software
wolfSSL 0:d92f9d21154c 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
wolfSSL 0:d92f9d21154c 20 */
wolfSSL 0:d92f9d21154c 21
wolfSSL 0:d92f9d21154c 22 #ifdef HAVE_CONFIG_H
wolfSSL 0:d92f9d21154c 23 #include <config.h>
wolfSSL 0:d92f9d21154c 24 #endif
wolfSSL 0:d92f9d21154c 25
wolfSSL 0:d92f9d21154c 26 #include <wolfssl/wolfcrypt/settings.h>
wolfSSL 0:d92f9d21154c 27
wolfSSL 0:d92f9d21154c 28 /* check old macros @wc_fips */
wolfSSL 0:d92f9d21154c 29 #if defined(USE_CYASSL_MEMORY) && !defined(USE_WOLFSSL_MEMORY)
wolfSSL 0:d92f9d21154c 30 #define USE_WOLFSSL_MEMORY
wolfSSL 0:d92f9d21154c 31 #endif
wolfSSL 0:d92f9d21154c 32 #if defined(CYASSL_MALLOC_CHECK) && !defined(WOLFSSL_MALLOC_CHECK)
wolfSSL 0:d92f9d21154c 33 #define WOLFSSL_MALLOC_CHECK
wolfSSL 0:d92f9d21154c 34 #endif
wolfSSL 0:d92f9d21154c 35
wolfSSL 0:d92f9d21154c 36 #ifdef USE_WOLFSSL_MEMORY
wolfSSL 0:d92f9d21154c 37
wolfSSL 0:d92f9d21154c 38 #include <wolfssl/wolfcrypt/memory.h>
wolfSSL 0:d92f9d21154c 39 #include <wolfssl/wolfcrypt/error-crypt.h>
wolfSSL 0:d92f9d21154c 40
wolfSSL 0:d92f9d21154c 41 #ifdef WOLFSSL_MALLOC_CHECK
wolfSSL 0:d92f9d21154c 42 #include <stdio.h>
wolfSSL 0:d92f9d21154c 43 #endif
wolfSSL 0:d92f9d21154c 44
wolfSSL 0:d92f9d21154c 45 /* Set these to default values initially. */
wolfSSL 0:d92f9d21154c 46 static wolfSSL_Malloc_cb malloc_function = 0;
wolfSSL 0:d92f9d21154c 47 static wolfSSL_Free_cb free_function = 0;
wolfSSL 0:d92f9d21154c 48 static wolfSSL_Realloc_cb realloc_function = 0;
wolfSSL 0:d92f9d21154c 49
wolfSSL 0:d92f9d21154c 50 int wolfSSL_SetAllocators(wolfSSL_Malloc_cb mf,
wolfSSL 0:d92f9d21154c 51 wolfSSL_Free_cb ff,
wolfSSL 0:d92f9d21154c 52 wolfSSL_Realloc_cb rf)
wolfSSL 0:d92f9d21154c 53 {
wolfSSL 0:d92f9d21154c 54 int res = 0;
wolfSSL 0:d92f9d21154c 55
wolfSSL 0:d92f9d21154c 56 if (mf)
wolfSSL 0:d92f9d21154c 57 malloc_function = mf;
wolfSSL 0:d92f9d21154c 58 else
wolfSSL 0:d92f9d21154c 59 res = BAD_FUNC_ARG;
wolfSSL 0:d92f9d21154c 60
wolfSSL 0:d92f9d21154c 61 if (ff)
wolfSSL 0:d92f9d21154c 62 free_function = ff;
wolfSSL 0:d92f9d21154c 63 else
wolfSSL 0:d92f9d21154c 64 res = BAD_FUNC_ARG;
wolfSSL 0:d92f9d21154c 65
wolfSSL 0:d92f9d21154c 66 if (rf)
wolfSSL 0:d92f9d21154c 67 realloc_function = rf;
wolfSSL 0:d92f9d21154c 68 else
wolfSSL 0:d92f9d21154c 69 res = BAD_FUNC_ARG;
wolfSSL 0:d92f9d21154c 70
wolfSSL 0:d92f9d21154c 71 return res;
wolfSSL 0:d92f9d21154c 72 }
wolfSSL 0:d92f9d21154c 73
wolfSSL 0:d92f9d21154c 74
wolfSSL 0:d92f9d21154c 75 void* wolfSSL_Malloc(size_t size)
wolfSSL 0:d92f9d21154c 76 {
wolfSSL 0:d92f9d21154c 77 void* res = 0;
wolfSSL 0:d92f9d21154c 78
wolfSSL 0:d92f9d21154c 79 if (malloc_function)
wolfSSL 0:d92f9d21154c 80 res = malloc_function(size);
wolfSSL 0:d92f9d21154c 81 else
wolfSSL 0:d92f9d21154c 82 res = malloc(size);
wolfSSL 0:d92f9d21154c 83
wolfSSL 0:d92f9d21154c 84 #ifdef WOLFSSL_MALLOC_CHECK
wolfSSL 0:d92f9d21154c 85 if (res == NULL)
wolfSSL 0:d92f9d21154c 86 puts("wolfSSL_malloc failed");
wolfSSL 0:d92f9d21154c 87 #endif
wolfSSL 0:d92f9d21154c 88
wolfSSL 0:d92f9d21154c 89 return res;
wolfSSL 0:d92f9d21154c 90 }
wolfSSL 0:d92f9d21154c 91
wolfSSL 0:d92f9d21154c 92 void wolfSSL_Free(void *ptr)
wolfSSL 0:d92f9d21154c 93 {
wolfSSL 0:d92f9d21154c 94 if (free_function)
wolfSSL 0:d92f9d21154c 95 free_function(ptr);
wolfSSL 0:d92f9d21154c 96 else
wolfSSL 0:d92f9d21154c 97 free(ptr);
wolfSSL 0:d92f9d21154c 98 }
wolfSSL 0:d92f9d21154c 99
wolfSSL 0:d92f9d21154c 100 void* wolfSSL_Realloc(void *ptr, size_t size)
wolfSSL 0:d92f9d21154c 101 {
wolfSSL 0:d92f9d21154c 102 void* res = 0;
wolfSSL 0:d92f9d21154c 103
wolfSSL 0:d92f9d21154c 104 if (realloc_function)
wolfSSL 0:d92f9d21154c 105 res = realloc_function(ptr, size);
wolfSSL 0:d92f9d21154c 106 else
wolfSSL 0:d92f9d21154c 107 res = realloc(ptr, size);
wolfSSL 0:d92f9d21154c 108
wolfSSL 0:d92f9d21154c 109 return res;
wolfSSL 0:d92f9d21154c 110 }
wolfSSL 0:d92f9d21154c 111
wolfSSL 0:d92f9d21154c 112 #endif /* USE_WOLFSSL_MEMORY */
wolfSSL 0:d92f9d21154c 113
wolfSSL 0:d92f9d21154c 114
wolfSSL 0:d92f9d21154c 115 #ifdef HAVE_IO_POOL
wolfSSL 0:d92f9d21154c 116
wolfSSL 0:d92f9d21154c 117 /* Example for user io pool, shared build may need definitions in lib proper */
wolfSSL 0:d92f9d21154c 118
wolfSSL 0:d92f9d21154c 119 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 0:d92f9d21154c 120 #include <stdlib.h>
wolfSSL 0:d92f9d21154c 121
wolfSSL 0:d92f9d21154c 122 #ifndef HAVE_THREAD_LS
wolfSSL 0:d92f9d21154c 123 #error "Oops, simple I/O pool example needs thread local storage"
wolfSSL 0:d92f9d21154c 124 #endif
wolfSSL 0:d92f9d21154c 125
wolfSSL 0:d92f9d21154c 126
wolfSSL 0:d92f9d21154c 127 /* allow simple per thread in and out pools */
wolfSSL 0:d92f9d21154c 128 /* use 17k size sense max record size is 16k plus overhead */
wolfSSL 0:d92f9d21154c 129 static THREAD_LS_T byte pool_in[17*1024];
wolfSSL 0:d92f9d21154c 130 static THREAD_LS_T byte pool_out[17*1024];
wolfSSL 0:d92f9d21154c 131
wolfSSL 0:d92f9d21154c 132
wolfSSL 0:d92f9d21154c 133 void* XMALLOC(size_t n, void* heap, int type)
wolfSSL 0:d92f9d21154c 134 {
wolfSSL 0:d92f9d21154c 135 (void)heap;
wolfSSL 0:d92f9d21154c 136
wolfSSL 0:d92f9d21154c 137 if (type == DYNAMIC_TYPE_IN_BUFFER) {
wolfSSL 0:d92f9d21154c 138 if (n < sizeof(pool_in))
wolfSSL 0:d92f9d21154c 139 return pool_in;
wolfSSL 0:d92f9d21154c 140 else
wolfSSL 0:d92f9d21154c 141 return NULL;
wolfSSL 0:d92f9d21154c 142 }
wolfSSL 0:d92f9d21154c 143
wolfSSL 0:d92f9d21154c 144 if (type == DYNAMIC_TYPE_OUT_BUFFER) {
wolfSSL 0:d92f9d21154c 145 if (n < sizeof(pool_out))
wolfSSL 0:d92f9d21154c 146 return pool_out;
wolfSSL 0:d92f9d21154c 147 else
wolfSSL 0:d92f9d21154c 148 return NULL;
wolfSSL 0:d92f9d21154c 149 }
wolfSSL 0:d92f9d21154c 150
wolfSSL 0:d92f9d21154c 151 return malloc(n);
wolfSSL 0:d92f9d21154c 152 }
wolfSSL 0:d92f9d21154c 153
wolfSSL 0:d92f9d21154c 154 void* XREALLOC(void *p, size_t n, void* heap, int type)
wolfSSL 0:d92f9d21154c 155 {
wolfSSL 0:d92f9d21154c 156 (void)heap;
wolfSSL 0:d92f9d21154c 157
wolfSSL 0:d92f9d21154c 158 if (type == DYNAMIC_TYPE_IN_BUFFER) {
wolfSSL 0:d92f9d21154c 159 if (n < sizeof(pool_in))
wolfSSL 0:d92f9d21154c 160 return pool_in;
wolfSSL 0:d92f9d21154c 161 else
wolfSSL 0:d92f9d21154c 162 return NULL;
wolfSSL 0:d92f9d21154c 163 }
wolfSSL 0:d92f9d21154c 164
wolfSSL 0:d92f9d21154c 165 if (type == DYNAMIC_TYPE_OUT_BUFFER) {
wolfSSL 0:d92f9d21154c 166 if (n < sizeof(pool_out))
wolfSSL 0:d92f9d21154c 167 return pool_out;
wolfSSL 0:d92f9d21154c 168 else
wolfSSL 0:d92f9d21154c 169 return NULL;
wolfSSL 0:d92f9d21154c 170 }
wolfSSL 0:d92f9d21154c 171
wolfSSL 0:d92f9d21154c 172 return realloc(p, n);
wolfSSL 0:d92f9d21154c 173 }
wolfSSL 0:d92f9d21154c 174
wolfSSL 0:d92f9d21154c 175
wolfSSL 0:d92f9d21154c 176 /* unit api calls, let's make sure visible with WOLFSSL_API */
wolfSSL 0:d92f9d21154c 177 WOLFSSL_API void XFREE(void *p, void* heap, int type)
wolfSSL 0:d92f9d21154c 178 {
wolfSSL 0:d92f9d21154c 179 (void)heap;
wolfSSL 0:d92f9d21154c 180
wolfSSL 0:d92f9d21154c 181 if (type == DYNAMIC_TYPE_IN_BUFFER)
wolfSSL 0:d92f9d21154c 182 return; /* do nothing, static pool */
wolfSSL 0:d92f9d21154c 183
wolfSSL 0:d92f9d21154c 184 if (type == DYNAMIC_TYPE_OUT_BUFFER)
wolfSSL 0:d92f9d21154c 185 return; /* do nothing, static pool */
wolfSSL 0:d92f9d21154c 186
wolfSSL 0:d92f9d21154c 187 free(p);
wolfSSL 0:d92f9d21154c 188 }
wolfSSL 0:d92f9d21154c 189
wolfSSL 0:d92f9d21154c 190 #endif /* HAVE_IO_POOL */
wolfSSL 0:d92f9d21154c 191
wolfSSL 0:d92f9d21154c 192