wolf SSL / CyaSSL-2.9.4

SSL/TLS Library

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CyaSSL is SSL/TLS library for embedded systems.

wolfssl.com

ctaocrypt/src/memory.c@0:9d17e4342598, 2014-04-20 (annotated)

Committer:
wolfSSL
Date:
Sun Apr 20 12:40:57 2014 +0000
Revision:
0:9d17e4342598
CyaSSL SSL/TLS Library 2.9.4;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 0:9d17e4342598 1 /* memory.c
wolfSSL 0:9d17e4342598 2 *
wolfSSL 0:9d17e4342598 3 * Copyright (C) 2006-2013 wolfSSL Inc.
wolfSSL 0:9d17e4342598 4 *
wolfSSL 0:9d17e4342598 5 * This file is part of CyaSSL.
wolfSSL 0:9d17e4342598 6 *
wolfSSL 0:9d17e4342598 7 * CyaSSL is free software; you can redistribute it and/or modify
wolfSSL 0:9d17e4342598 8 * it under the terms of the GNU General Public License as published by
wolfSSL 0:9d17e4342598 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 0:9d17e4342598 10 * (at your option) any later version.
wolfSSL 0:9d17e4342598 11 *
wolfSSL 0:9d17e4342598 12 * CyaSSL is distributed in the hope that it will be useful,
wolfSSL 0:9d17e4342598 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 0:9d17e4342598 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 0:9d17e4342598 15 * GNU General Public License for more details.
wolfSSL 0:9d17e4342598 16 *
wolfSSL 0:9d17e4342598 17 * You should have received a copy of the GNU General Public License
wolfSSL 0:9d17e4342598 18 * along with this program; if not, write to the Free Software
wolfSSL 0:9d17e4342598 19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
wolfSSL 0:9d17e4342598 20 */
wolfSSL 0:9d17e4342598 21
wolfSSL 0:9d17e4342598 22 #ifdef HAVE_CONFIG_H
wolfSSL 0:9d17e4342598 23 #include <config.h>
wolfSSL 0:9d17e4342598 24 #endif
wolfSSL 0:9d17e4342598 25
wolfSSL 0:9d17e4342598 26 #include <cyassl/ctaocrypt/settings.h>
wolfSSL 0:9d17e4342598 27
wolfSSL 0:9d17e4342598 28 #ifdef USE_CYASSL_MEMORY
wolfSSL 0:9d17e4342598 29
wolfSSL 0:9d17e4342598 30 #include <cyassl/ctaocrypt/memory.h>
wolfSSL 0:9d17e4342598 31 #include <cyassl/ctaocrypt/error-crypt.h>
wolfSSL 0:9d17e4342598 32
wolfSSL 0:9d17e4342598 33 #ifdef CYASSL_MALLOC_CHECK
wolfSSL 0:9d17e4342598 34 #include <stdio.h>
wolfSSL 0:9d17e4342598 35 #endif
wolfSSL 0:9d17e4342598 36
wolfSSL 0:9d17e4342598 37 /* Set these to default values initially. */
wolfSSL 0:9d17e4342598 38 static CyaSSL_Malloc_cb malloc_function = 0;
wolfSSL 0:9d17e4342598 39 static CyaSSL_Free_cb free_function = 0;
wolfSSL 0:9d17e4342598 40 static CyaSSL_Realloc_cb realloc_function = 0;
wolfSSL 0:9d17e4342598 41
wolfSSL 0:9d17e4342598 42 int CyaSSL_SetAllocators(CyaSSL_Malloc_cb mf,
wolfSSL 0:9d17e4342598 43 CyaSSL_Free_cb ff,
wolfSSL 0:9d17e4342598 44 CyaSSL_Realloc_cb rf)
wolfSSL 0:9d17e4342598 45 {
wolfSSL 0:9d17e4342598 46 int res = 0;
wolfSSL 0:9d17e4342598 47
wolfSSL 0:9d17e4342598 48 if (mf)
wolfSSL 0:9d17e4342598 49 malloc_function = mf;
wolfSSL 0:9d17e4342598 50 else
wolfSSL 0:9d17e4342598 51 res = BAD_FUNC_ARG;
wolfSSL 0:9d17e4342598 52
wolfSSL 0:9d17e4342598 53 if (ff)
wolfSSL 0:9d17e4342598 54 free_function = ff;
wolfSSL 0:9d17e4342598 55 else
wolfSSL 0:9d17e4342598 56 res = BAD_FUNC_ARG;
wolfSSL 0:9d17e4342598 57
wolfSSL 0:9d17e4342598 58 if (rf)
wolfSSL 0:9d17e4342598 59 realloc_function = rf;
wolfSSL 0:9d17e4342598 60 else
wolfSSL 0:9d17e4342598 61 res = BAD_FUNC_ARG;
wolfSSL 0:9d17e4342598 62
wolfSSL 0:9d17e4342598 63 return res;
wolfSSL 0:9d17e4342598 64 }
wolfSSL 0:9d17e4342598 65
wolfSSL 0:9d17e4342598 66
wolfSSL 0:9d17e4342598 67 void* CyaSSL_Malloc(size_t size)
wolfSSL 0:9d17e4342598 68 {
wolfSSL 0:9d17e4342598 69 void* res = 0;
wolfSSL 0:9d17e4342598 70
wolfSSL 0:9d17e4342598 71 if (malloc_function)
wolfSSL 0:9d17e4342598 72 res = malloc_function(size);
wolfSSL 0:9d17e4342598 73 else
wolfSSL 0:9d17e4342598 74 res = malloc(size);
wolfSSL 0:9d17e4342598 75
wolfSSL 0:9d17e4342598 76 #ifdef CYASSL_MALLOC_CHECK
wolfSSL 0:9d17e4342598 77 if (res == NULL)
wolfSSL 0:9d17e4342598 78 puts("CyaSSL_malloc failed");
wolfSSL 0:9d17e4342598 79 #endif
wolfSSL 0:9d17e4342598 80
wolfSSL 0:9d17e4342598 81 return res;
wolfSSL 0:9d17e4342598 82 }
wolfSSL 0:9d17e4342598 83
wolfSSL 0:9d17e4342598 84 void CyaSSL_Free(void *ptr)
wolfSSL 0:9d17e4342598 85 {
wolfSSL 0:9d17e4342598 86 if (free_function)
wolfSSL 0:9d17e4342598 87 free_function(ptr);
wolfSSL 0:9d17e4342598 88 else
wolfSSL 0:9d17e4342598 89 free(ptr);
wolfSSL 0:9d17e4342598 90 }
wolfSSL 0:9d17e4342598 91
wolfSSL 0:9d17e4342598 92 void* CyaSSL_Realloc(void *ptr, size_t size)
wolfSSL 0:9d17e4342598 93 {
wolfSSL 0:9d17e4342598 94 void* res = 0;
wolfSSL 0:9d17e4342598 95
wolfSSL 0:9d17e4342598 96 if (realloc_function)
wolfSSL 0:9d17e4342598 97 res = realloc_function(ptr, size);
wolfSSL 0:9d17e4342598 98 else
wolfSSL 0:9d17e4342598 99 res = realloc(ptr, size);
wolfSSL 0:9d17e4342598 100
wolfSSL 0:9d17e4342598 101 return res;
wolfSSL 0:9d17e4342598 102 }
wolfSSL 0:9d17e4342598 103
wolfSSL 0:9d17e4342598 104 #endif /* USE_CYASSL_MEMORY */
wolfSSL 0:9d17e4342598 105
wolfSSL 0:9d17e4342598 106
wolfSSL 0:9d17e4342598 107 #ifdef HAVE_IO_POOL
wolfSSL 0:9d17e4342598 108
wolfSSL 0:9d17e4342598 109 /* Example for user io pool, shared build may need definitions in lib proper */
wolfSSL 0:9d17e4342598 110
wolfSSL 0:9d17e4342598 111 #include <cyassl/ctaocrypt/types.h>
wolfSSL 0:9d17e4342598 112 #include <stdlib.h>
wolfSSL 0:9d17e4342598 113
wolfSSL 0:9d17e4342598 114 #ifndef HAVE_THREAD_LS
wolfSSL 0:9d17e4342598 115 #error "Oops, simple I/O pool example needs thread local storage"
wolfSSL 0:9d17e4342598 116 #endif
wolfSSL 0:9d17e4342598 117
wolfSSL 0:9d17e4342598 118
wolfSSL 0:9d17e4342598 119 /* allow simple per thread in and out pools */
wolfSSL 0:9d17e4342598 120 /* use 17k size sense max record size is 16k plus overhead */
wolfSSL 0:9d17e4342598 121 static THREAD_LS_T byte pool_in[17*1024];
wolfSSL 0:9d17e4342598 122 static THREAD_LS_T byte pool_out[17*1024];
wolfSSL 0:9d17e4342598 123
wolfSSL 0:9d17e4342598 124
wolfSSL 0:9d17e4342598 125 void* XMALLOC(size_t n, void* heap, int type)
wolfSSL 0:9d17e4342598 126 {
wolfSSL 0:9d17e4342598 127 (void)heap;
wolfSSL 0:9d17e4342598 128
wolfSSL 0:9d17e4342598 129 if (type == DYNAMIC_TYPE_IN_BUFFER) {
wolfSSL 0:9d17e4342598 130 if (n < sizeof(pool_in))
wolfSSL 0:9d17e4342598 131 return pool_in;
wolfSSL 0:9d17e4342598 132 else
wolfSSL 0:9d17e4342598 133 return NULL;
wolfSSL 0:9d17e4342598 134 }
wolfSSL 0:9d17e4342598 135
wolfSSL 0:9d17e4342598 136 if (type == DYNAMIC_TYPE_OUT_BUFFER) {
wolfSSL 0:9d17e4342598 137 if (n < sizeof(pool_out))
wolfSSL 0:9d17e4342598 138 return pool_out;
wolfSSL 0:9d17e4342598 139 else
wolfSSL 0:9d17e4342598 140 return NULL;
wolfSSL 0:9d17e4342598 141 }
wolfSSL 0:9d17e4342598 142
wolfSSL 0:9d17e4342598 143 return malloc(n);
wolfSSL 0:9d17e4342598 144 }
wolfSSL 0:9d17e4342598 145
wolfSSL 0:9d17e4342598 146 void* XREALLOC(void *p, size_t n, void* heap, int type)
wolfSSL 0:9d17e4342598 147 {
wolfSSL 0:9d17e4342598 148 (void)heap;
wolfSSL 0:9d17e4342598 149
wolfSSL 0:9d17e4342598 150 if (type == DYNAMIC_TYPE_IN_BUFFER) {
wolfSSL 0:9d17e4342598 151 if (n < sizeof(pool_in))
wolfSSL 0:9d17e4342598 152 return pool_in;
wolfSSL 0:9d17e4342598 153 else
wolfSSL 0:9d17e4342598 154 return NULL;
wolfSSL 0:9d17e4342598 155 }
wolfSSL 0:9d17e4342598 156
wolfSSL 0:9d17e4342598 157 if (type == DYNAMIC_TYPE_OUT_BUFFER) {
wolfSSL 0:9d17e4342598 158 if (n < sizeof(pool_out))
wolfSSL 0:9d17e4342598 159 return pool_out;
wolfSSL 0:9d17e4342598 160 else
wolfSSL 0:9d17e4342598 161 return NULL;
wolfSSL 0:9d17e4342598 162 }
wolfSSL 0:9d17e4342598 163
wolfSSL 0:9d17e4342598 164 return realloc(p, n);
wolfSSL 0:9d17e4342598 165 }
wolfSSL 0:9d17e4342598 166
wolfSSL 0:9d17e4342598 167
wolfSSL 0:9d17e4342598 168 /* unit api calls, let's make sure visisble with CYASSL_API */
wolfSSL 0:9d17e4342598 169 CYASSL_API void XFREE(void *p, void* heap, int type)
wolfSSL 0:9d17e4342598 170 {
wolfSSL 0:9d17e4342598 171 (void)heap;
wolfSSL 0:9d17e4342598 172
wolfSSL 0:9d17e4342598 173 if (type == DYNAMIC_TYPE_IN_BUFFER)
wolfSSL 0:9d17e4342598 174 return; /* do nothing, static pool */
wolfSSL 0:9d17e4342598 175
wolfSSL 0:9d17e4342598 176 if (type == DYNAMIC_TYPE_OUT_BUFFER)
wolfSSL 0:9d17e4342598 177 return; /* do nothing, static pool */
wolfSSL 0:9d17e4342598 178
wolfSSL 0:9d17e4342598 179 free(p);
wolfSSL 0:9d17e4342598 180 }
wolfSSL 0:9d17e4342598 181
wolfSSL 0:9d17e4342598 182 #endif /* HAVE_IO_POOL */
wolfSSL 0:9d17e4342598 183