1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/evp/bio_md.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,293 @@
1.4 +/* crypto/evp/bio_md.c */
1.5 +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1.6 + * All rights reserved.
1.7 + *
1.8 + * This package is an SSL implementation written
1.9 + * by Eric Young (eay@cryptsoft.com).
1.10 + * The implementation was written so as to conform with Netscapes SSL.
1.11 + *
1.12 + * This library is free for commercial and non-commercial use as long as
1.13 + * the following conditions are aheared to. The following conditions
1.14 + * apply to all code found in this distribution, be it the RC4, RSA,
1.15 + * lhash, DES, etc., code; not just the SSL code. The SSL documentation
1.16 + * included with this distribution is covered by the same copyright terms
1.17 + * except that the holder is Tim Hudson (tjh@cryptsoft.com).
1.18 + *
1.19 + * Copyright remains Eric Young's, and as such any Copyright notices in
1.20 + * the code are not to be removed.
1.21 + * If this package is used in a product, Eric Young should be given attribution
1.22 + * as the author of the parts of the library used.
1.23 + * This can be in the form of a textual message at program startup or
1.24 + * in documentation (online or textual) provided with the package.
1.25 + *
1.26 + * Redistribution and use in source and binary forms, with or without
1.27 + * modification, are permitted provided that the following conditions
1.28 + * are met:
1.29 + * 1. Redistributions of source code must retain the copyright
1.30 + * notice, this list of conditions and the following disclaimer.
1.31 + * 2. Redistributions in binary form must reproduce the above copyright
1.32 + * notice, this list of conditions and the following disclaimer in the
1.33 + * documentation and/or other materials provided with the distribution.
1.34 + * 3. All advertising materials mentioning features or use of this software
1.35 + * must display the following acknowledgement:
1.36 + * "This product includes cryptographic software written by
1.37 + * Eric Young (eay@cryptsoft.com)"
1.38 + * The word 'cryptographic' can be left out if the rouines from the library
1.39 + * being used are not cryptographic related :-).
1.40 + * 4. If you include any Windows specific code (or a derivative thereof) from
1.41 + * the apps directory (application code) you must include an acknowledgement:
1.42 + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1.43 + *
1.44 + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1.45 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.46 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.47 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.48 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.49 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.50 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.51 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.52 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.53 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.54 + * SUCH DAMAGE.
1.55 + *
1.56 + * The licence and distribution terms for any publically available version or
1.57 + * derivative of this code cannot be changed. i.e. this code cannot simply be
1.58 + * copied and put under another distribution licence
1.59 + * [including the GNU Public Licence.]
1.60 + */
1.61 + /*
1.62 + © Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
1.63 + */
1.64 +
1.65 +
1.66 +#include <stdio.h>
1.67 +#include <errno.h>
1.68 +#include "cryptlib.h"
1.69 +#include <openssl/buffer.h>
1.70 +#include <openssl/evp.h>
1.71 +#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
1.72 +#include "libcrypto_wsd_macros.h"
1.73 +#include "libcrypto_wsd.h"
1.74 +#endif
1.75 +
1.76 +/* BIO_put and BIO_get both add to the digest,
1.77 + * BIO_gets returns the digest */
1.78 +
1.79 +static int md_write(BIO *h, char const *buf, int num);
1.80 +static int md_read(BIO *h, char *buf, int size);
1.81 +/*static int md_puts(BIO *h, const char *str); */
1.82 +static int md_gets(BIO *h, char *str, int size);
1.83 +static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
1.84 +static int md_new(BIO *h);
1.85 +static int md_free(BIO *data);
1.86 +static long md_callback_ctrl(BIO *h,int cmd,bio_info_cb *fp);
1.87 +
1.88 +#ifndef EMULATOR
1.89 +static BIO_METHOD methods_md=
1.90 + {
1.91 + BIO_TYPE_MD,"message digest",
1.92 + md_write,
1.93 + md_read,
1.94 + NULL, /* md_puts, */
1.95 + md_gets,
1.96 + md_ctrl,
1.97 + md_new,
1.98 + md_free,
1.99 + md_callback_ctrl,
1.100 + };
1.101 +#else
1.102 +GET_STATIC_VAR_FROM_TLS(methods_md,bio_md,BIO_METHOD)
1.103 +#define methods_md (*GET_WSD_VAR_NAME(methods_md,bio_md, s)())
1.104 +const BIO_METHOD temp_s_methods_md=
1.105 + {
1.106 + BIO_TYPE_MD,"message digest",
1.107 + md_write,
1.108 + md_read,
1.109 + NULL, /* md_puts, */
1.110 + md_gets,
1.111 + md_ctrl,
1.112 + md_new,
1.113 + md_free,
1.114 + md_callback_ctrl,
1.115 + };
1.116 +#endif
1.117 +EXPORT_C BIO_METHOD *BIO_f_md(void)
1.118 + {
1.119 + return(&methods_md);
1.120 + }
1.121 +
1.122 +static int md_new(BIO *bi)
1.123 + {
1.124 + EVP_MD_CTX *ctx;
1.125 +
1.126 + ctx=EVP_MD_CTX_create();
1.127 + if (ctx == NULL) return(0);
1.128 +
1.129 + bi->init=0;
1.130 + bi->ptr=(char *)ctx;
1.131 + bi->flags=0;
1.132 + return(1);
1.133 + }
1.134 +
1.135 +static int md_free(BIO *a)
1.136 + {
1.137 + if (a == NULL) return(0);
1.138 + EVP_MD_CTX_destroy(a->ptr);
1.139 + a->ptr=NULL;
1.140 + a->init=0;
1.141 + a->flags=0;
1.142 + return(1);
1.143 + }
1.144 +
1.145 +static int md_read(BIO *b, char *out, int outl)
1.146 + {
1.147 + int ret=0;
1.148 + EVP_MD_CTX *ctx;
1.149 +
1.150 + if (out == NULL) return(0);
1.151 + ctx=b->ptr;
1.152 +
1.153 + if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
1.154 +
1.155 + ret=BIO_read(b->next_bio,out,outl);
1.156 + if (b->init)
1.157 + {
1.158 + if (ret > 0)
1.159 + {
1.160 + EVP_DigestUpdate(ctx,(unsigned char *)out,
1.161 + (unsigned int)ret);
1.162 + }
1.163 + }
1.164 + BIO_clear_retry_flags(b);
1.165 + BIO_copy_next_retry(b);
1.166 + return(ret);
1.167 + }
1.168 +
1.169 +static int md_write(BIO *b, const char *in, int inl)
1.170 + {
1.171 + int ret=0;
1.172 + EVP_MD_CTX *ctx;
1.173 +
1.174 + if ((in == NULL) || (inl <= 0)) return(0);
1.175 + ctx=b->ptr;
1.176 +
1.177 + if ((ctx != NULL) && (b->next_bio != NULL))
1.178 + ret=BIO_write(b->next_bio,in,inl);
1.179 + if (b->init)
1.180 + {
1.181 + if (ret > 0)
1.182 + {
1.183 + EVP_DigestUpdate(ctx,(const unsigned char *)in,
1.184 + (unsigned int)ret);
1.185 + }
1.186 + }
1.187 + BIO_clear_retry_flags(b);
1.188 + BIO_copy_next_retry(b);
1.189 + return(ret);
1.190 + }
1.191 +
1.192 +static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
1.193 + {
1.194 + EVP_MD_CTX *ctx,*dctx,**pctx;
1.195 + const EVP_MD **ppmd;
1.196 + EVP_MD *md;
1.197 + long ret=1;
1.198 + BIO *dbio;
1.199 +
1.200 + ctx=b->ptr;
1.201 +
1.202 + switch (cmd)
1.203 + {
1.204 + case BIO_CTRL_RESET:
1.205 + if (b->init)
1.206 + ret = EVP_DigestInit_ex(ctx,ctx->digest, NULL);
1.207 + else
1.208 + ret=0;
1.209 + if (ret > 0)
1.210 + ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
1.211 + break;
1.212 + case BIO_C_GET_MD:
1.213 + if (b->init)
1.214 + {
1.215 + ppmd=ptr;
1.216 + *ppmd=ctx->digest;
1.217 + }
1.218 + else
1.219 + ret=0;
1.220 + break;
1.221 + case BIO_C_GET_MD_CTX:
1.222 + if (b->init)
1.223 + {
1.224 + pctx=ptr;
1.225 + *pctx=ctx;
1.226 + }
1.227 + else
1.228 + ret=0;
1.229 + break;
1.230 + case BIO_C_SET_MD_CTX:
1.231 + if (b->init)
1.232 + b->ptr=ptr;
1.233 + else
1.234 + ret=0;
1.235 + break;
1.236 + case BIO_C_DO_STATE_MACHINE:
1.237 + BIO_clear_retry_flags(b);
1.238 + ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
1.239 + BIO_copy_next_retry(b);
1.240 + break;
1.241 +
1.242 + case BIO_C_SET_MD:
1.243 + md=ptr;
1.244 + ret = EVP_DigestInit_ex(ctx,md, NULL);
1.245 + if (ret > 0)
1.246 + b->init=1;
1.247 + break;
1.248 + case BIO_CTRL_DUP:
1.249 + dbio=ptr;
1.250 + dctx=dbio->ptr;
1.251 + EVP_MD_CTX_copy_ex(dctx,ctx);
1.252 + b->init=1;
1.253 + break;
1.254 + default:
1.255 + ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
1.256 + break;
1.257 + }
1.258 + return(ret);
1.259 + }
1.260 +
1.261 +static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
1.262 + {
1.263 + long ret=1;
1.264 +
1.265 + if (b->next_bio == NULL) return(0);
1.266 + switch (cmd)
1.267 + {
1.268 + default:
1.269 + ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
1.270 + break;
1.271 + }
1.272 + return(ret);
1.273 + }
1.274 +
1.275 +static int md_gets(BIO *bp, char *buf, int size)
1.276 + {
1.277 + EVP_MD_CTX *ctx;
1.278 + unsigned int ret;
1.279 +
1.280 +
1.281 + ctx=bp->ptr;
1.282 + if (size < ctx->digest->md_size)
1.283 + return(0);
1.284 + EVP_DigestFinal_ex(ctx,(unsigned char *)buf,&ret);
1.285 + return((int)ret);
1.286 + }
1.287 +
1.288 +/*
1.289 +static int md_puts(bp,str)
1.290 +BIO *bp;
1.291 +char *str;
1.292 + {
1.293 + return(-1);
1.294 + }
1.295 +*/
1.296 +