crypto/x509v3/v3_cpols.c

   1 /* v3_cpols.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 "cryptlib.h"
  61 #include <openssl/conf.h>
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/x509v3.h>
  65
  66 /* Certificate policies extension support: this one is a bit complex... */
  67
  68 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, BIO *out, int indent);
  69 static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *value);
  70 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, int indent);
  71 static void print_notice(BIO *out, USERNOTICE *notice, int indent);
  72 static POLICYINFO *policy_section(X509V3_CTX *ctx,
  73                                  STACK_OF(CONF_VALUE) *polstrs, int ia5org);
  74 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
  75                                         STACK_OF(CONF_VALUE) *unot, int ia5org);
  76 static STACK_OF(ASN1_INTEGER) *nref_nos(STACK_OF(CONF_VALUE) *nos);
  77
  78 X509V3_EXT_METHOD v3_cpols = {
  79 NID_certificate_policies, 0,ASN1_ITEM_ref(CERTIFICATEPOLICIES),
  80 0,0,0,0,
  81 0,0,
  82 0,0,
  83 (X509V3_EXT_I2R)i2r_certpol,
  84 (X509V3_EXT_R2I)r2i_certpol,
  85 NULL
  86 };
  87
  88 ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
  89         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
  90 ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
  91
  92 IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
  93
  94 ASN1_SEQUENCE(POLICYINFO) = {
  95         ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
  96         ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
  97 } ASN1_SEQUENCE_END(POLICYINFO)
  98
  99 IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
 100
 101 ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
 102
 103 ASN1_ADB(POLICYQUALINFO) = {
 104         ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
 105         ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
 106 } ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
 107
 108 ASN1_SEQUENCE(POLICYQUALINFO) = {
 109         ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
 110         ASN1_ADB_OBJECT(POLICYQUALINFO)
 111 } ASN1_SEQUENCE_END(POLICYQUALINFO)
 112
 113 IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
 114
 115 ASN1_SEQUENCE(USERNOTICE) = {
 116         ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
 117         ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
 118 } ASN1_SEQUENCE_END(USERNOTICE)
 119
 120 IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
 121
 122 ASN1_SEQUENCE(NOTICEREF) = {
 123         ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
 124         ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
 125 } ASN1_SEQUENCE_END(NOTICEREF)
 126
 127 IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
 128
 129 static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
 130                 X509V3_CTX *ctx, char *value)
 131 {
 132         STACK_OF(POLICYINFO) *pols = NULL;
 133         char *pstr;
 134         POLICYINFO *pol;
 135         ASN1_OBJECT *pobj;
 136         STACK_OF(CONF_VALUE) *vals;
 137         CONF_VALUE *cnf;
 138         int i, ia5org;
 139         pols = sk_POLICYINFO_new_null();
 140         vals =  X509V3_parse_list(value);
 141         ia5org = 0;
 142         for(i = 0; i < sk_CONF_VALUE_num(vals); i++) {
 143                 cnf = sk_CONF_VALUE_value(vals, i);
 144                 if(cnf->value || !cnf->name ) {
 145                         X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_POLICY_IDENTIFIER);
 146                         X509V3_conf_err(cnf);
 147                         goto err;
 148                 }
 149                 pstr = cnf->name;
 150                 if(!strcmp(pstr,"ia5org")) {
 151                         ia5org = 1;
 152                         continue;
 153                 } else if(*pstr == '@') {
 154                         STACK_OF(CONF_VALUE) *polsect;
 155                         polsect = X509V3_get_section(ctx, pstr + 1);
 156                         if(!polsect) {
 157                                 X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_SECTION);
 158
 159                                 X509V3_conf_err(cnf);
 160                                 goto err;
 161                         }
 162                         pol = policy_section(ctx, polsect, ia5org);
 163                         X509V3_section_free(ctx, polsect);
 164                         if(!pol) goto err;
 165                 } else {
 166                         if(!(pobj = OBJ_txt2obj(cnf->name, 0))) {
 167                                 X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_OBJECT_IDENTIFIER);
 168                                 X509V3_conf_err(cnf);
 169                                 goto err;
 170                         }
 171                         pol = POLICYINFO_new();
 172                         pol->policyid = pobj;
 173                 }
 174                 sk_POLICYINFO_push(pols, pol);
 175         }
 176         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
 177         return pols;
 178         err:
 179         sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
 180         return NULL;
 181 }
 182
 183 static POLICYINFO *policy_section(X509V3_CTX *ctx,
 184                                 STACK_OF(CONF_VALUE) *polstrs, int ia5org)
 185 {
 186         int i;
 187         CONF_VALUE *cnf;
 188         POLICYINFO *pol;
 189         POLICYQUALINFO *qual;
 190         if(!(pol = POLICYINFO_new())) goto merr;
 191         for(i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
 192                 cnf = sk_CONF_VALUE_value(polstrs, i);
 193                 if(!strcmp(cnf->name, "policyIdentifier")) {
 194                         ASN1_OBJECT *pobj;
 195                         if(!(pobj = OBJ_txt2obj(cnf->value, 0))) {
 196                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OBJECT_IDENTIFIER);
 197                                 X509V3_conf_err(cnf);
 198                                 goto err;
 199                         }
 200                         pol->policyid = pobj;
 201
 202                 } else if(!name_cmp(cnf->name, "CPS")) {
 203                         if(!pol->qualifiers) pol->qualifiers =
 204                                                  sk_POLICYQUALINFO_new_null();
 205                         if(!(qual = POLICYQUALINFO_new())) goto merr;
 206                         if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
 207                                                                  goto merr;
 208                         qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
 209                         qual->d.cpsuri = M_ASN1_IA5STRING_new();
 210                         if(!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
 211                                                  strlen(cnf->value))) goto merr;
 212                 } else if(!name_cmp(cnf->name, "userNotice")) {
 213                         STACK_OF(CONF_VALUE) *unot;
 214                         if(*cnf->value != '@') {
 215                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_EXPECTED_A_SECTION_NAME);
 216                                 X509V3_conf_err(cnf);
 217                                 goto err;
 218                         }
 219                         unot = X509V3_get_section(ctx, cnf->value + 1);
 220                         if(!unot) {
 221                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_SECTION);
 222
 223                                 X509V3_conf_err(cnf);
 224                                 goto err;
 225                         }
 226                         qual = notice_section(ctx, unot, ia5org);
 227                         X509V3_section_free(ctx, unot);
 228                         if(!qual) goto err;
 229                         if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
 230                                                                  goto merr;
 231                 } else {
 232                         X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OPTION);
 233
 234                         X509V3_conf_err(cnf);
 235                         goto err;
 236                 }
 237         }
 238         if(!pol->policyid) {
 239                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_NO_POLICY_IDENTIFIER);
 240                 goto err;
 241         }
 242
 243         return pol;
 244
 245         merr:
 246         X509V3err(X509V3_F_POLICY_SECTION,ERR_R_MALLOC_FAILURE);
 247
 248         err:
 249         POLICYINFO_free(pol);
 250         return NULL;
 251
 252
 253 }
 254
 255 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
 256                                         STACK_OF(CONF_VALUE) *unot, int ia5org)
 257 {
 258         int i;
 259         CONF_VALUE *cnf;
 260         USERNOTICE *not;
 261         POLICYQUALINFO *qual;
 262         if(!(qual = POLICYQUALINFO_new())) goto merr;
 263         qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
 264         if(!(not = USERNOTICE_new())) goto merr;
 265         qual->d.usernotice = not;
 266         for(i = 0; i < sk_CONF_VALUE_num(unot); i++) {
 267                 cnf = sk_CONF_VALUE_value(unot, i);
 268                 if(!strcmp(cnf->name, "explicitText")) {
 269                         not->exptext = M_ASN1_VISIBLESTRING_new();
 270                         if(!ASN1_STRING_set(not->exptext, cnf->value,
 271                                                  strlen(cnf->value))) goto merr;
 272                 } else if(!strcmp(cnf->name, "organization")) {
 273                         NOTICEREF *nref;
 274                         if(!not->noticeref) {
 275                                 if(!(nref = NOTICEREF_new())) goto merr;
 276                                 not->noticeref = nref;
 277                         } else nref = not->noticeref;
 278                         if(ia5org) nref->organization = M_ASN1_IA5STRING_new();
 279                         else nref->organization = M_ASN1_VISIBLESTRING_new();
 280                         if(!ASN1_STRING_set(nref->organization, cnf->value,
 281                                                  strlen(cnf->value))) goto merr;
 282                 } else if(!strcmp(cnf->name, "noticeNumbers")) {
 283                         NOTICEREF *nref;
 284                         STACK_OF(CONF_VALUE) *nos;
 285                         if(!not->noticeref) {
 286                                 if(!(nref = NOTICEREF_new())) goto merr;
 287                                 not->noticeref = nref;
 288                         } else nref = not->noticeref;
 289                         nos = X509V3_parse_list(cnf->value);
 290                         if(!nos || !sk_CONF_VALUE_num(nos)) {
 291                                 X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_NUMBERS);
 292                                 X509V3_conf_err(cnf);
 293                                 goto err;
 294                         }
 295                         nref->noticenos = nref_nos(nos);
 296                         sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
 297                         if(!nref->noticenos) goto err;
 298                 } else {
 299                         X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_OPTION);
 300
 301                         X509V3_conf_err(cnf);
 302                         goto err;
 303                 }
 304         }
 305
 306         if(not->noticeref &&
 307               (!not->noticeref->noticenos || !not->noticeref->organization)) {
 308                         X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
 309                         goto err;
 310         }
 311
 312         return qual;
 313
 314         merr:
 315         X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);
 316
 317         err:
 318         POLICYQUALINFO_free(qual);
 319         return NULL;
 320 }
 321
 322 static STACK_OF(ASN1_INTEGER) *nref_nos(STACK_OF(CONF_VALUE) *nos)
 323 {
 324         STACK_OF(ASN1_INTEGER) *nnums;
 325         CONF_VALUE *cnf;
 326         ASN1_INTEGER *aint;
 327
 328         int i;
 329
 330         if(!(nnums = sk_ASN1_INTEGER_new_null())) goto merr;
 331         for(i = 0; i < sk_CONF_VALUE_num(nos); i++) {
 332                 cnf = sk_CONF_VALUE_value(nos, i);
 333                 if(!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
 334                         X509V3err(X509V3_F_NREF_NOS,X509V3_R_INVALID_NUMBER);
 335                         goto err;
 336                 }
 337                 if(!sk_ASN1_INTEGER_push(nnums, aint)) goto merr;
 338         }
 339         return nnums;
 340
 341         merr:
 342         X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);
 343
 344         err:
 345         sk_ASN1_INTEGER_pop_free(nnums, ASN1_STRING_free);
 346         return NULL;
 347 }
 348
 349
 350 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
 351                 BIO *out, int indent)
 352 {
 353         int i;
 354         POLICYINFO *pinfo;
 355         /* First print out the policy OIDs */
 356         for(i = 0; i < sk_POLICYINFO_num(pol); i++) {
 357                 pinfo = sk_POLICYINFO_value(pol, i);
 358                 BIO_printf(out, "%*sPolicy: ", indent, "");
 359                 i2a_ASN1_OBJECT(out, pinfo->policyid);
 360                 BIO_puts(out, "\n");
 361                 if(pinfo->qualifiers)
 362                          print_qualifiers(out, pinfo->qualifiers, indent + 2);
 363         }
 364         return 1;
 365 }
 366
 367 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
 368                 int indent)
 369 {
 370         POLICYQUALINFO *qualinfo;
 371         int i;
 372         for(i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
 373                 qualinfo = sk_POLICYQUALINFO_value(quals, i);
 374                 switch(OBJ_obj2nid(qualinfo->pqualid))
 375                 {
 376                         case NID_id_qt_cps:
 377                         BIO_printf(out, "%*sCPS: %s\n", indent, "",
 378                                                 qualinfo->d.cpsuri->data);
 379                         break;
 380
 381                         case NID_id_qt_unotice:
 382                         BIO_printf(out, "%*sUser Notice:\n", indent, "");
 383                         print_notice(out, qualinfo->d.usernotice, indent + 2);
 384                         break;
 385
 386                         default:
 387                         BIO_printf(out, "%*sUnknown Qualifier: ",
 388                                                          indent + 2, "");
 389
 390                         i2a_ASN1_OBJECT(out, qualinfo->pqualid);
 391                         BIO_puts(out, "\n");
 392                         break;
 393                 }
 394         }
 395 }
 396
 397 static void print_notice(BIO *out, USERNOTICE *notice, int indent)
 398 {
 399         int i;
 400         if(notice->noticeref) {
 401                 NOTICEREF *ref;
 402                 ref = notice->noticeref;
 403                 BIO_printf(out, "%*sOrganization: %s\n", indent, "",
 404                                                  ref->organization->data);
 405                 BIO_printf(out, "%*sNumber%s: ", indent, "",
 406                            sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
 407                 for(i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
 408                         ASN1_INTEGER *num;
 409                         char *tmp;
 410                         num = sk_ASN1_INTEGER_value(ref->noticenos, i);
 411                         if(i) BIO_puts(out, ", ");
 412                         tmp = i2s_ASN1_INTEGER(NULL, num);
 413                         BIO_puts(out, tmp);
 414                         OPENSSL_free(tmp);
 415                 }
 416                 BIO_puts(out, "\n");
 417         }
 418         if(notice->exptext)
 419                 BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
 420                                                          notice->exptext->data);
 421 }
 422