lib/libcrypto/x509v3/v3_info.c

   1 /* $OpenBSD: v3_info.c,v 1.25 2017/01/29 17:49:23 beck Exp $ */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 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 <stdio.h>
  60 #include <string.h>
  61
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/conf.h>
  65 #include <openssl/err.h>
  66 #include <openssl/x509v3.h>
  67
  68 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
  69     X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo,
  70     STACK_OF(CONF_VALUE) *ret);
  71 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(
  72     X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
  73
  74 const X509V3_EXT_METHOD v3_info = {
  75         .ext_nid = NID_info_access,
  76         .ext_flags = X509V3_EXT_MULTILINE,
  77         .it = &AUTHORITY_INFO_ACCESS_it,
  78         .ext_new = NULL,
  79         .ext_free = NULL,
  80         .d2i = NULL,
  81         .i2d = NULL,
  82         .i2s = NULL,
  83         .s2i = NULL,
  84         .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,
  85         .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
  86         .i2r = NULL,
  87         .r2i = NULL,
  88         .usr_data = NULL,
  89 };
  90
  91 const X509V3_EXT_METHOD v3_sinfo = {
  92         .ext_nid = NID_sinfo_access,
  93         .ext_flags = X509V3_EXT_MULTILINE,
  94         .it = &AUTHORITY_INFO_ACCESS_it,
  95         .ext_new = NULL,
  96         .ext_free = NULL,
  97         .d2i = NULL,
  98         .i2d = NULL,
  99         .i2s = NULL,
 100         .s2i = NULL,
 101         .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,
 102         .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
 103         .i2r = NULL,
 104         .r2i = NULL,
 105         .usr_data = NULL,
 106 };
 107
 108 static const ASN1_TEMPLATE ACCESS_DESCRIPTION_seq_tt[] = {
 109         {
 110                 .flags = 0,
 111                 .tag = 0,
 112                 .offset = offsetof(ACCESS_DESCRIPTION, method),
 113                 .field_name = "method",
 114                 .item = &ASN1_OBJECT_it,
 115         },
 116         {
 117                 .flags = 0,
 118                 .tag = 0,
 119                 .offset = offsetof(ACCESS_DESCRIPTION, location),
 120                 .field_name = "location",
 121                 .item = &GENERAL_NAME_it,
 122         },
 123 };
 124
 125 const ASN1_ITEM ACCESS_DESCRIPTION_it = {
 126         .itype = ASN1_ITYPE_SEQUENCE,
 127         .utype = V_ASN1_SEQUENCE,
 128         .templates = ACCESS_DESCRIPTION_seq_tt,
 129         .tcount = sizeof(ACCESS_DESCRIPTION_seq_tt) / sizeof(ASN1_TEMPLATE),
 130         .funcs = NULL,
 131         .size = sizeof(ACCESS_DESCRIPTION),
 132         .sname = "ACCESS_DESCRIPTION",
 133 };
 134
 135
 136 ACCESS_DESCRIPTION *
 137 d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION **a, const unsigned char **in, long len)
 138 {
 139         return (ACCESS_DESCRIPTION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
 140             &ACCESS_DESCRIPTION_it);
 141 }
 142
 143 int
 144 i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION *a, unsigned char **out)
 145 {
 146         return ASN1_item_i2d((ASN1_VALUE *)a, out, &ACCESS_DESCRIPTION_it);
 147 }
 148
 149 ACCESS_DESCRIPTION *
 150 ACCESS_DESCRIPTION_new(void)
 151 {
 152         return (ACCESS_DESCRIPTION *)ASN1_item_new(&ACCESS_DESCRIPTION_it);
 153 }
 154
 155 void
 156 ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION *a)
 157 {
 158         ASN1_item_free((ASN1_VALUE *)a, &ACCESS_DESCRIPTION_it);
 159 }
 160
 161 static const ASN1_TEMPLATE AUTHORITY_INFO_ACCESS_item_tt = {
 162         .flags = ASN1_TFLG_SEQUENCE_OF,
 163         .tag = 0,
 164         .offset = 0,
 165         .field_name = "GeneralNames",
 166         .item = &ACCESS_DESCRIPTION_it,
 167 };
 168
 169 const ASN1_ITEM AUTHORITY_INFO_ACCESS_it = {
 170         .itype = ASN1_ITYPE_PRIMITIVE,
 171         .utype = -1,
 172         .templates = &AUTHORITY_INFO_ACCESS_item_tt,
 173         .tcount = 0,
 174         .funcs = NULL,
 175         .size = 0,
 176         .sname = "AUTHORITY_INFO_ACCESS",
 177 };
 178
 179
 180 AUTHORITY_INFO_ACCESS *
 181 d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS **a, const unsigned char **in, long len)
 182 {
 183         return (AUTHORITY_INFO_ACCESS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
 184             &AUTHORITY_INFO_ACCESS_it);
 185 }
 186
 187 int
 188 i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS *a, unsigned char **out)
 189 {
 190         return ASN1_item_i2d((ASN1_VALUE *)a, out, &AUTHORITY_INFO_ACCESS_it);
 191 }
 192
 193 AUTHORITY_INFO_ACCESS *
 194 AUTHORITY_INFO_ACCESS_new(void)
 195 {
 196         return (AUTHORITY_INFO_ACCESS *)ASN1_item_new(&AUTHORITY_INFO_ACCESS_it);
 197 }
 198
 199 void
 200 AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS *a)
 201 {
 202         ASN1_item_free((ASN1_VALUE *)a, &AUTHORITY_INFO_ACCESS_it);
 203 }
 204
 205 static STACK_OF(CONF_VALUE) *
 206 i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method,
 207     AUTHORITY_INFO_ACCESS *ainfo, STACK_OF(CONF_VALUE) *ret)
 208 {
 209         ACCESS_DESCRIPTION *desc;
 210         int i, nlen;
 211         char objtmp[80], *ntmp;
 212         CONF_VALUE *vtmp;
 213
 214         for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
 215                 desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);
 216                 ret = i2v_GENERAL_NAME(method, desc->location, ret);
 217                 if (!ret)
 218                         break;
 219                 vtmp = sk_CONF_VALUE_value(ret, i);
 220                 i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method);
 221                 nlen = strlen(objtmp) + strlen(vtmp->name) + 5;
 222                 ntmp = malloc(nlen);
 223                 if (!ntmp) {
 224                         X509V3error(ERR_R_MALLOC_FAILURE);
 225                         return NULL;
 226                 }
 227                 strlcpy(ntmp, objtmp, nlen);
 228                 strlcat(ntmp, " - ", nlen);
 229                 strlcat(ntmp, vtmp->name, nlen);
 230                 free(vtmp->name);
 231                 vtmp->name = ntmp;
 232
 233         }
 234         if (!ret)
 235                 return sk_CONF_VALUE_new_null();
 236         return ret;
 237 }
 238
 239 static AUTHORITY_INFO_ACCESS *
 240 v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
 241     STACK_OF(CONF_VALUE) *nval)
 242 {
 243         AUTHORITY_INFO_ACCESS *ainfo = NULL;
 244         CONF_VALUE *cnf, ctmp;
 245         ACCESS_DESCRIPTION *acc;
 246         int i, objlen;
 247         char *objtmp, *ptmp;
 248
 249         if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {
 250                 X509V3error(ERR_R_MALLOC_FAILURE);
 251                 return NULL;
 252         }
 253         for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
 254                 cnf = sk_CONF_VALUE_value(nval, i);
 255                 if ((acc = ACCESS_DESCRIPTION_new()) == NULL) {
 256                         X509V3error(ERR_R_MALLOC_FAILURE);
 257                         goto err;
 258                 }
 259                 if (sk_ACCESS_DESCRIPTION_push(ainfo, acc) == 0) {
 260                         ACCESS_DESCRIPTION_free(acc);
 261                         X509V3error(ERR_R_MALLOC_FAILURE);
 262                         goto err;
 263                 }
 264                 ptmp = strchr(cnf->name, ';');
 265                 if (!ptmp) {
 266                         X509V3error(X509V3_R_INVALID_SYNTAX);
 267                         goto err;
 268                 }
 269                 objlen = ptmp - cnf->name;
 270                 ctmp.name = ptmp + 1;
 271                 ctmp.value = cnf->value;
 272                 if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
 273                         goto err;
 274                 if (!(objtmp = malloc(objlen + 1))) {
 275                         X509V3error(ERR_R_MALLOC_FAILURE);
 276                         goto err;
 277                 }
 278                 strlcpy(objtmp, cnf->name, objlen + 1);
 279                 acc->method = OBJ_txt2obj(objtmp, 0);
 280                 if (!acc->method) {
 281                         X509V3error(X509V3_R_BAD_OBJECT);
 282                         ERR_asprintf_error_data("value=%s", objtmp);
 283                         free(objtmp);
 284                         goto err;
 285                 }
 286                 free(objtmp);
 287         }
 288         return ainfo;
 289
 290 err:
 291         sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
 292         return NULL;
 293 }
 294
 295 int
 296 i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION* a)
 297 {
 298         i2a_ASN1_OBJECT(bp, a->method);
 299         return 2;
 300 }