1 /* $OpenBSD: ts_verify_ctx.c,v 1.9 2017/01/29 17:49:23 beck Exp $ */ 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 <string.h> 60 61 #include <openssl/err.h> 62 #include <openssl/objects.h> 63 #include <openssl/ts.h> 64 65 TS_VERIFY_CTX * 66 TS_VERIFY_CTX_new(void) 67 { 68 TS_VERIFY_CTX *ctx = calloc(1, sizeof(TS_VERIFY_CTX)); 69 70 if (!ctx) 71 TSerror(ERR_R_MALLOC_FAILURE); 72 73 return ctx; 74 } 75 76 void 77 TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx) 78 { 79 memset(ctx, 0, sizeof(TS_VERIFY_CTX)); 80 } 81 82 void 83 TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx) 84 { 85 if (!ctx) 86 return; 87 88 TS_VERIFY_CTX_cleanup(ctx); 89 free(ctx); 90 } 91 92 void 93 TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx) 94 { 95 if (!ctx) 96 return; 97 98 X509_STORE_free(ctx->store); 99 sk_X509_pop_free(ctx->certs, X509_free); 100 101 ASN1_OBJECT_free(ctx->policy); 102 103 X509_ALGOR_free(ctx->md_alg); 104 free(ctx->imprint); 105 106 BIO_free_all(ctx->data); 107 108 ASN1_INTEGER_free(ctx->nonce); 109 110 GENERAL_NAME_free(ctx->tsa_name); 111 112 TS_VERIFY_CTX_init(ctx); 113 } 114 115 TS_VERIFY_CTX * 116 TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx) 117 { 118 TS_VERIFY_CTX *ret = ctx; 119 ASN1_OBJECT *policy; 120 TS_MSG_IMPRINT *imprint; 121 X509_ALGOR *md_alg; 122 ASN1_OCTET_STRING *msg; 123 const ASN1_INTEGER *nonce; 124 125 if (ret) 126 TS_VERIFY_CTX_cleanup(ret); 127 else if (!(ret = TS_VERIFY_CTX_new())) 128 return NULL; 129 130 /* Setting flags. */ 131 ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE); 132 133 /* Setting policy. */ 134 if ((policy = TS_REQ_get_policy_id(req)) != NULL) { 135 if (!(ret->policy = OBJ_dup(policy))) 136 goto err; 137 } else 138 ret->flags &= ~TS_VFY_POLICY; 139 140 /* Setting md_alg, imprint and imprint_len. */ 141 imprint = TS_REQ_get_msg_imprint(req); 142 md_alg = TS_MSG_IMPRINT_get_algo(imprint); 143 if (!(ret->md_alg = X509_ALGOR_dup(md_alg))) 144 goto err; 145 msg = TS_MSG_IMPRINT_get_msg(imprint); 146 ret->imprint_len = ASN1_STRING_length(msg); 147 if (!(ret->imprint = malloc(ret->imprint_len))) 148 goto err; 149 memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len); 150 151 /* Setting nonce. */ 152 if ((nonce = TS_REQ_get_nonce(req)) != NULL) { 153 if (!(ret->nonce = ASN1_INTEGER_dup(nonce))) 154 goto err; 155 } else 156 ret->flags &= ~TS_VFY_NONCE; 157 158 return ret; 159 160 err: 161 if (ctx) 162 TS_VERIFY_CTX_cleanup(ctx); 163 else 164 TS_VERIFY_CTX_free(ret); 165 return NULL; 166 } 167