1/*
2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include "internal/cryptlib.h"
11#include <openssl/objects.h>
12#include <openssl/ts.h>
13#include "ts_local.h"
14
15TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
16{
17 TS_VERIFY_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
18
19 if (ctx == NULL)
20 TSerr(TS_F_TS_VERIFY_CTX_NEW, ERR_R_MALLOC_FAILURE);
21 return ctx;
22}
23
24void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
25{
26 OPENSSL_assert(ctx != NULL);
27 memset(ctx, 0, sizeof(*ctx));
28}
29
30void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
31{
32 if (!ctx)
33 return;
34
35 TS_VERIFY_CTX_cleanup(ctx);
36 OPENSSL_free(ctx);
37}
38
39int TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int f)
40{
41 ctx->flags |= f;
42 return ctx->flags;
43}
44
45int TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int f)
46{
47 ctx->flags = f;
48 return ctx->flags;
49}
50
51BIO *TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *b)
52{
53 ctx->data = b;
54 return ctx->data;
55}
56
57X509_STORE *TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *s)
58{
59 ctx->store = s;
60 return ctx->store;
61}
62
63STACK_OF(X509) *TS_VERIFY_CTX_set_certs(TS_VERIFY_CTX *ctx,
64 STACK_OF(X509) *certs)
65{
66 ctx->certs = certs;
67 return ctx->certs;
68}
69
70unsigned char *TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx,
71 unsigned char *hexstr, long len)
72{
73 ctx->imprint = hexstr;
74 ctx->imprint_len = len;
75 return ctx->imprint;
76}
77
78void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
79{
80 if (!ctx)
81 return;
82
83 X509_STORE_free(ctx->store);
84 sk_X509_pop_free(ctx->certs, X509_free);
85
86 ASN1_OBJECT_free(ctx->policy);
87
88 X509_ALGOR_free(ctx->md_alg);
89 OPENSSL_free(ctx->imprint);
90
91 BIO_free_all(ctx->data);
92
93 ASN1_INTEGER_free(ctx->nonce);
94
95 GENERAL_NAME_free(ctx->tsa_name);
96
97 TS_VERIFY_CTX_init(ctx);
98}
99
100TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
101{
102 TS_VERIFY_CTX *ret = ctx;
103 ASN1_OBJECT *policy;
104 TS_MSG_IMPRINT *imprint;
105 X509_ALGOR *md_alg;
106 ASN1_OCTET_STRING *msg;
107 const ASN1_INTEGER *nonce;
108
109 OPENSSL_assert(req != NULL);
110 if (ret)
111 TS_VERIFY_CTX_cleanup(ret);
112 else if ((ret = TS_VERIFY_CTX_new()) == NULL)
113 return NULL;
114
115 ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
116
117 if ((policy = req->policy_id) != NULL) {
118 if ((ret->policy = OBJ_dup(policy)) == NULL)
119 goto err;
120 } else
121 ret->flags &= ~TS_VFY_POLICY;
122
123 imprint = req->msg_imprint;
124 md_alg = imprint->hash_algo;
125 if ((ret->md_alg = X509_ALGOR_dup(md_alg)) == NULL)
126 goto err;
127 msg = imprint->hashed_msg;
128 ret->imprint_len = ASN1_STRING_length(msg);
129 if ((ret->imprint = OPENSSL_malloc(ret->imprint_len)) == NULL)
130 goto err;
131 memcpy(ret->imprint, ASN1_STRING_get0_data(msg), ret->imprint_len);
132
133 if ((nonce = req->nonce) != NULL) {
134 if ((ret->nonce = ASN1_INTEGER_dup(nonce)) == NULL)
135 goto err;
136 } else
137 ret->flags &= ~TS_VFY_NONCE;
138
139 return ret;
140 err:
141 if (ctx)
142 TS_VERIFY_CTX_cleanup(ctx);
143 else
144 TS_VERIFY_CTX_free(ret);
145 return NULL;
146}
147