1 /*
2 * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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
TS_VERIFY_CTX_new(void)15 TS_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
TS_VERIFY_CTX_init(TS_VERIFY_CTX * ctx)24 void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
25 {
26 OPENSSL_assert(ctx != NULL);
27 memset(ctx, 0, sizeof(*ctx));
28 }
29
TS_VERIFY_CTX_free(TS_VERIFY_CTX * ctx)30 void 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
TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX * ctx,int f)39 int TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int f)
40 {
41 ctx->flags |= f;
42 return ctx->flags;
43 }
44
TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX * ctx,int f)45 int TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int f)
46 {
47 ctx->flags = f;
48 return ctx->flags;
49 }
50
TS_VERIFY_CTX_set_data(TS_VERIFY_CTX * ctx,BIO * b)51 BIO *TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *b)
52 {
53 ctx->data = b;
54 return ctx->data;
55 }
56
TS_VERIFY_CTX_set_store(TS_VERIFY_CTX * ctx,X509_STORE * s)57 X509_STORE *TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *s)
58 {
59 ctx->store = s;
60 return ctx->store;
61 }
62
STACK_OF(X509)63 STACK_OF(X509) *TS_VERIFY_CTS_set_certs(TS_VERIFY_CTX *ctx,
64 STACK_OF(X509) *certs)
65 {
66 ctx->certs = certs;
67 return ctx->certs;
68 }
69
TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX * ctx,unsigned char * hexstr,long len)70 unsigned char *TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx,
71 unsigned char *hexstr, long len)
72 {
73 OPENSSL_free(ctx->imprint);
74 ctx->imprint = hexstr;
75 ctx->imprint_len = len;
76 return ctx->imprint;
77 }
78
TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX * ctx)79 void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
80 {
81 if (!ctx)
82 return;
83
84 X509_STORE_free(ctx->store);
85 sk_X509_pop_free(ctx->certs, X509_free);
86
87 ASN1_OBJECT_free(ctx->policy);
88
89 X509_ALGOR_free(ctx->md_alg);
90 OPENSSL_free(ctx->imprint);
91
92 BIO_free_all(ctx->data);
93
94 ASN1_INTEGER_free(ctx->nonce);
95
96 GENERAL_NAME_free(ctx->tsa_name);
97
98 TS_VERIFY_CTX_init(ctx);
99 }
100
TS_REQ_to_TS_VERIFY_CTX(TS_REQ * req,TS_VERIFY_CTX * ctx)101 TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
102 {
103 TS_VERIFY_CTX *ret = ctx;
104 ASN1_OBJECT *policy;
105 TS_MSG_IMPRINT *imprint;
106 X509_ALGOR *md_alg;
107 ASN1_OCTET_STRING *msg;
108 const ASN1_INTEGER *nonce;
109
110 OPENSSL_assert(req != NULL);
111 if (ret)
112 TS_VERIFY_CTX_cleanup(ret);
113 else if ((ret = TS_VERIFY_CTX_new()) == NULL)
114 return NULL;
115
116 ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
117
118 if ((policy = req->policy_id) != NULL) {
119 if ((ret->policy = OBJ_dup(policy)) == NULL)
120 goto err;
121 } else
122 ret->flags &= ~TS_VFY_POLICY;
123
124 imprint = req->msg_imprint;
125 md_alg = imprint->hash_algo;
126 if ((ret->md_alg = X509_ALGOR_dup(md_alg)) == NULL)
127 goto err;
128 msg = imprint->hashed_msg;
129 ret->imprint_len = ASN1_STRING_length(msg);
130 if (ret->imprint_len <= 0)
131 goto err;
132 if ((ret->imprint = OPENSSL_malloc(ret->imprint_len)) == NULL)
133 goto err;
134 memcpy(ret->imprint, ASN1_STRING_get0_data(msg), ret->imprint_len);
135
136 if ((nonce = req->nonce) != NULL) {
137 if ((ret->nonce = ASN1_INTEGER_dup(nonce)) == NULL)
138 goto err;
139 } else
140 ret->flags &= ~TS_VFY_NONCE;
141
142 return ret;
143 err:
144 if (ctx)
145 TS_VERIFY_CTX_cleanup(ctx);
146 else
147 TS_VERIFY_CTX_free(ret);
148 return NULL;
149 }
150