crypto/ts/ts_verify_ctx.c

   1 /* crypto/ts/ts_verify_ctx.c */
   2 /* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
   3  * project 2003.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include "cryptlib.h"
  60 #include <openssl/objects.h>
  61 #include <openssl/ts.h>
  62
  63 TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
  64         {
  65         TS_VERIFY_CTX *ctx =
  66                 (TS_VERIFY_CTX *) OPENSSL_malloc(sizeof(TS_VERIFY_CTX));
  67         if (ctx)
  68                 memset(ctx, 0, sizeof(TS_VERIFY_CTX));
  69         else
  70                 TSerr(TS_F_TS_VERIFY_CTX_NEW, ERR_R_MALLOC_FAILURE);
  71         return ctx;
  72         }
  73
  74 void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
  75         {
  76         OPENSSL_assert(ctx != NULL);
  77         memset(ctx, 0, sizeof(TS_VERIFY_CTX));
  78         }
  79
  80 void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
  81         {
  82         if (!ctx) return;
  83
  84         TS_VERIFY_CTX_cleanup(ctx);
  85         OPENSSL_free(ctx);
  86         }
  87
  88 void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
  89         {
  90         if (!ctx) return;
  91
  92         X509_STORE_free(ctx->store);
  93         sk_X509_pop_free(ctx->certs, X509_free);
  94
  95         ASN1_OBJECT_free(ctx->policy);
  96
  97         X509_ALGOR_free(ctx->md_alg);
  98         OPENSSL_free(ctx->imprint);
  99
 100         BIO_free_all(ctx->data);
 101
 102         ASN1_INTEGER_free(ctx->nonce);
 103
 104         GENERAL_NAME_free(ctx->tsa_name);
 105
 106         TS_VERIFY_CTX_init(ctx);
 107         }
 108
 109 TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
 110         {
 111         TS_VERIFY_CTX *ret = ctx;
 112         ASN1_OBJECT *policy;
 113         TS_MSG_IMPRINT *imprint;
 114         X509_ALGOR *md_alg;
 115         ASN1_OCTET_STRING *msg;
 116         const ASN1_INTEGER *nonce;
 117
 118         OPENSSL_assert(req != NULL);
 119         if (ret)
 120                 TS_VERIFY_CTX_cleanup(ret);
 121         else
 122                 if (!(ret = TS_VERIFY_CTX_new())) return NULL;
 123
 124         /* Setting flags. */
 125         ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
 126
 127         /* Setting policy. */
 128         if ((policy = TS_REQ_get_policy_id(req)) != NULL)
 129                 {
 130                 if (!(ret->policy = OBJ_dup(policy))) goto err;
 131                 }
 132         else
 133                 ret->flags &= ~TS_VFY_POLICY;
 134
 135         /* Setting md_alg, imprint and imprint_len. */
 136         imprint = TS_REQ_get_msg_imprint(req);
 137         md_alg = TS_MSG_IMPRINT_get_algo(imprint);
 138         if (!(ret->md_alg = X509_ALGOR_dup(md_alg))) goto err;
 139         msg = TS_MSG_IMPRINT_get_msg(imprint);
 140         ret->imprint_len = ASN1_STRING_length(msg);
 141         if (!(ret->imprint = OPENSSL_malloc(ret->imprint_len))) goto err;
 142         memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len);
 143
 144         /* Setting nonce. */
 145         if ((nonce = TS_REQ_get_nonce(req)) != NULL)
 146                 {
 147                 if (!(ret->nonce = ASN1_INTEGER_dup(nonce))) goto err;
 148                 }
 149         else
 150                 ret->flags &= ~TS_VFY_NONCE;
 151
 152         return ret;
 153  err:
 154         if (ctx)
 155                 TS_VERIFY_CTX_cleanup(ctx);
 156         else
 157                 TS_VERIFY_CTX_free(ret);
 158         return NULL;
 159         }