crypto/ts/ts_verify_ctx.c

   1 /*
   2  * Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
   3  * 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 "internal/cryptlib.h"
  60 #include <openssl/objects.h>
  61 #include <openssl/ts.h>
  62 #include "ts_lcl.h"
  63
  64 TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
  65 {
  66     TS_VERIFY_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
  67
  68     if (ctx == NULL)
  69         TSerr(TS_F_TS_VERIFY_CTX_NEW, ERR_R_MALLOC_FAILURE);
  70     return ctx;
  71 }
  72
  73 void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
  74 {
  75     OPENSSL_assert(ctx != NULL);
  76     memset(ctx, 0, sizeof(*ctx));
  77 }
  78
  79 void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
  80 {
  81     if (!ctx)
  82         return;
  83
  84     TS_VERIFY_CTX_cleanup(ctx);
  85     OPENSSL_free(ctx);
  86 }
  87
  88 int TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int f)
  89 {
  90     ctx->flags |= f;
  91     return ctx->flags;
  92 }
  93
  94 int TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int f)
  95 {
  96     ctx->flags = f;
  97     return ctx->flags;
  98 }
  99
 100 BIO *TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *b)
 101 {
 102     ctx->data = b;
 103     return ctx->data;
 104 }
 105
 106 X509_STORE *TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *s)
 107 {
 108     ctx->store = s;
 109     return ctx->store;
 110 }
 111
 112 STACK_OF(X509) *TS_VERIFY_CTS_set_certs(TS_VERIFY_CTX *ctx,
 113                                         STACK_OF(X509) *certs)
 114 {
 115     ctx->certs = certs;
 116     return ctx->certs;
 117 }
 118
 119 unsigned char *TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx,
 120                                          unsigned char *hexstr, long len)
 121 {
 122     ctx->imprint = hexstr;
 123     ctx->imprint_len = len;
 124     return ctx->imprint;
 125 }
 126
 127 void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
 128 {
 129     if (!ctx)
 130         return;
 131
 132     X509_STORE_free(ctx->store);
 133     sk_X509_pop_free(ctx->certs, X509_free);
 134
 135     ASN1_OBJECT_free(ctx->policy);
 136
 137     X509_ALGOR_free(ctx->md_alg);
 138     OPENSSL_free(ctx->imprint);
 139
 140     BIO_free_all(ctx->data);
 141
 142     ASN1_INTEGER_free(ctx->nonce);
 143
 144     GENERAL_NAME_free(ctx->tsa_name);
 145
 146     TS_VERIFY_CTX_init(ctx);
 147 }
 148
 149 TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
 150 {
 151     TS_VERIFY_CTX *ret = ctx;
 152     ASN1_OBJECT *policy;
 153     TS_MSG_IMPRINT *imprint;
 154     X509_ALGOR *md_alg;
 155     ASN1_OCTET_STRING *msg;
 156     const ASN1_INTEGER *nonce;
 157
 158     OPENSSL_assert(req != NULL);
 159     if (ret)
 160         TS_VERIFY_CTX_cleanup(ret);
 161     else if ((ret = TS_VERIFY_CTX_new()) == NULL)
 162         return NULL;
 163
 164     ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
 165
 166     if ((policy = req->policy_id) != NULL) {
 167         if ((ret->policy = OBJ_dup(policy)) == NULL)
 168             goto err;
 169     } else
 170         ret->flags &= ~TS_VFY_POLICY;
 171
 172     imprint = req->msg_imprint;
 173     md_alg = imprint->hash_algo;
 174     if ((ret->md_alg = X509_ALGOR_dup(md_alg)) == NULL)
 175         goto err;
 176     msg = imprint->hashed_msg;
 177     ret->imprint_len = ASN1_STRING_length(msg);
 178     if ((ret->imprint = OPENSSL_malloc(ret->imprint_len)) == NULL)
 179         goto err;
 180     memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len);
 181
 182     if ((nonce = req->nonce) != NULL) {
 183         if ((ret->nonce = ASN1_INTEGER_dup(nonce)) == NULL)
 184             goto err;
 185     } else
 186         ret->flags &= ~TS_VFY_NONCE;
 187
 188     return ret;
 189  err:
 190     if (ctx)
 191         TS_VERIFY_CTX_cleanup(ctx);
 192     else
 193         TS_VERIFY_CTX_free(ret);
 194     return NULL;
 195 }