1/* crypto/ts/ts_verify_ctx.c */
2/*
3 * Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
4 * 2003.
5 */
6/* ====================================================================
7 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include "cryptlib.h"
61#include <openssl/objects.h>
62#include <openssl/ts.h>
63
64TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
65{
66    TS_VERIFY_CTX *ctx =
67        (TS_VERIFY_CTX *)OPENSSL_malloc(sizeof(TS_VERIFY_CTX));
68    if (ctx)
69        memset(ctx, 0, sizeof(TS_VERIFY_CTX));
70    else
71        TSerr(TS_F_TS_VERIFY_CTX_NEW, ERR_R_MALLOC_FAILURE);
72    return ctx;
73}
74
75void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
76{
77    OPENSSL_assert(ctx != NULL);
78    memset(ctx, 0, sizeof(TS_VERIFY_CTX));
79}
80
81void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
82{
83    if (!ctx)
84        return;
85
86    TS_VERIFY_CTX_cleanup(ctx);
87    OPENSSL_free(ctx);
88}
89
90void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
91{
92    if (!ctx)
93        return;
94
95    X509_STORE_free(ctx->store);
96    sk_X509_pop_free(ctx->certs, X509_free);
97
98    ASN1_OBJECT_free(ctx->policy);
99
100    X509_ALGOR_free(ctx->md_alg);
101    OPENSSL_free(ctx->imprint);
102
103    BIO_free_all(ctx->data);
104
105    ASN1_INTEGER_free(ctx->nonce);
106
107    GENERAL_NAME_free(ctx->tsa_name);
108
109    TS_VERIFY_CTX_init(ctx);
110}
111
112TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
113{
114    TS_VERIFY_CTX *ret = ctx;
115    ASN1_OBJECT *policy;
116    TS_MSG_IMPRINT *imprint;
117    X509_ALGOR *md_alg;
118    ASN1_OCTET_STRING *msg;
119    const ASN1_INTEGER *nonce;
120
121    OPENSSL_assert(req != NULL);
122    if (ret)
123        TS_VERIFY_CTX_cleanup(ret);
124    else if (!(ret = TS_VERIFY_CTX_new()))
125        return NULL;
126
127    /* Setting flags. */
128    ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
129
130    /* Setting policy. */
131    if ((policy = TS_REQ_get_policy_id(req)) != NULL) {
132        if (!(ret->policy = OBJ_dup(policy)))
133            goto err;
134    } else
135        ret->flags &= ~TS_VFY_POLICY;
136
137    /* Setting md_alg, imprint and imprint_len. */
138    imprint = TS_REQ_get_msg_imprint(req);
139    md_alg = TS_MSG_IMPRINT_get_algo(imprint);
140    if (!(ret->md_alg = X509_ALGOR_dup(md_alg)))
141        goto err;
142    msg = TS_MSG_IMPRINT_get_msg(imprint);
143    ret->imprint_len = ASN1_STRING_length(msg);
144    if (!(ret->imprint = OPENSSL_malloc(ret->imprint_len)))
145        goto err;
146    memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len);
147
148    /* Setting nonce. */
149    if ((nonce = TS_REQ_get_nonce(req)) != NULL) {
150        if (!(ret->nonce = ASN1_INTEGER_dup(nonce)))
151            goto err;
152    } else
153        ret->flags &= ~TS_VFY_NONCE;
154
155    return ret;
156 err:
157    if (ctx)
158        TS_VERIFY_CTX_cleanup(ctx);
159    else
160        TS_VERIFY_CTX_free(ret);
161    return NULL;
162}
163