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,
  80 (X509V3_EXT_NEW)CERTIFICATEPOLICIES_new,
  81 (X509V3_EXT_FREE)CERTIFICATEPOLICIES_free,
  82 (X509V3_EXT_D2I)d2i_CERTIFICATEPOLICIES,
  83 (X509V3_EXT_I2D)i2d_CERTIFICATEPOLICIES,
  84 NULL, NULL,
  85 NULL, NULL,
  86 (X509V3_EXT_I2R)i2r_certpol,
  87 (X509V3_EXT_R2I)r2i_certpol,
  88 NULL
  89 };
  90
  91 ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
  92         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
  93 ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES);
  94
  95 IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
  96
  97 ASN1_SEQUENCE(POLICYINFO) = {
  98         ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
  99         ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
 100 } ASN1_SEQUENCE_END(POLICYINFO);
 101
 102 IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
 103
 104 ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
 105
 106 ASN1_ADB(POLICYQUALINFO) = {
 107         ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
 108         ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
 109 } ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
 110
 111 ASN1_SEQUENCE(POLICYQUALINFO) = {
 112         ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
 113         ASN1_ADB_OBJECT(POLICYQUALINFO)
 114 } ASN1_SEQUENCE_END(POLICYQUALINFO);
 115
 116 IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
 117
 118 ASN1_SEQUENCE(USERNOTICE) = {
 119         ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
 120         ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
 121 } ASN1_SEQUENCE_END(USERNOTICE);
 122
 123 IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
 124
 125 ASN1_SEQUENCE(NOTICEREF) = {
 126         ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
 127         ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
 128 } ASN1_SEQUENCE_END(NOTICEREF);
 129
 130 IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
 131
 132 static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
 133                 X509V3_CTX *ctx, char *value)
 134 {
 135         STACK_OF(POLICYINFO) *pols = NULL;
 136         char *pstr;
 137         POLICYINFO *pol;
 138         ASN1_OBJECT *pobj;
 139         STACK_OF(CONF_VALUE) *vals;
 140         CONF_VALUE *cnf;
 141         int i, ia5org;
 142         pols = sk_POLICYINFO_new_null();
 143         vals =  X509V3_parse_list(value);
 144         ia5org = 0;
 145         for(i = 0; i < sk_CONF_VALUE_num(vals); i++) {
 146                 cnf = sk_CONF_VALUE_value(vals, i);
 147                 if(cnf->value || !cnf->name ) {
 148                         X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_POLICY_IDENTIFIER);
 149                         X509V3_conf_err(cnf);
 150                         goto err;
 151                 }
 152                 pstr = cnf->name;
 153                 if(!strcmp(pstr,"ia5org")) {
 154                         ia5org = 1;
 155                         continue;
 156                 } else if(*pstr == '@') {
 157                         STACK_OF(CONF_VALUE) *polsect;
 158                         polsect = X509V3_get_section(ctx, pstr + 1);
 159                         if(!polsect) {
 160                                 X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_SECTION);
 161
 162                                 X509V3_conf_err(cnf);
 163                                 goto err;
 164                         }
 165                         pol = policy_section(ctx, polsect, ia5org);
 166                         X509V3_section_free(ctx, polsect);
 167                         if(!pol) goto err;
 168                 } else {
 169                         if(!(pobj = OBJ_txt2obj(cnf->name, 0))) {
 170                                 X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_OBJECT_IDENTIFIER);
 171                                 X509V3_conf_err(cnf);
 172                                 goto err;
 173                         }
 174                         pol = POLICYINFO_new();
 175                         pol->policyid = pobj;
 176                 }
 177                 sk_POLICYINFO_push(pols, pol);
 178         }
 179         sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
 180         return pols;
 181         err:
 182         sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
 183         return NULL;
 184 }
 185
 186 static POLICYINFO *policy_section(X509V3_CTX *ctx,
 187                                 STACK_OF(CONF_VALUE) *polstrs, int ia5org)
 188 {
 189         int i;
 190         CONF_VALUE *cnf;
 191         POLICYINFO *pol;
 192         POLICYQUALINFO *qual;
 193         if(!(pol = POLICYINFO_new())) goto merr;
 194         for(i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
 195                 cnf = sk_CONF_VALUE_value(polstrs, i);
 196                 if(!strcmp(cnf->name, "policyIdentifier")) {
 197                         ASN1_OBJECT *pobj;
 198                         if(!(pobj = OBJ_txt2obj(cnf->value, 0))) {
 199                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OBJECT_IDENTIFIER);
 200                                 X509V3_conf_err(cnf);
 201                                 goto err;
 202                         }
 203                         pol->policyid = pobj;
 204
 205                 } else if(!name_cmp(cnf->name, "CPS")) {
 206                         if(!pol->qualifiers) pol->qualifiers =
 207                                                  sk_POLICYQUALINFO_new_null();
 208                         if(!(qual = POLICYQUALINFO_new())) goto merr;
 209                         if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
 210                                                                  goto merr;
 211                         qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
 212                         qual->d.cpsuri = M_ASN1_IA5STRING_new();
 213                         if(!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
 214                                                  strlen(cnf->value))) goto merr;
 215                 } else if(!name_cmp(cnf->name, "userNotice")) {
 216                         STACK_OF(CONF_VALUE) *unot;
 217                         if(*cnf->value != '@') {
 218                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_EXPECTED_A_SECTION_NAME);
 219                                 X509V3_conf_err(cnf);
 220                                 goto err;
 221                         }
 222                         unot = X509V3_get_section(ctx, cnf->value + 1);
 223                         if(!unot) {
 224                                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_SECTION);
 225
 226                                 X509V3_conf_err(cnf);
 227                                 goto err;
 228                         }
 229                         qual = notice_section(ctx, unot, ia5org);
 230                         X509V3_section_free(ctx, unot);
 231                         if(!qual) goto err;
 232                         if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
 233                                                                  goto merr;
 234                 } else {
 235                         X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OPTION);
 236
 237                         X509V3_conf_err(cnf);
 238                         goto err;
 239                 }
 240         }
 241         if(!pol->policyid) {
 242                 X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_NO_POLICY_IDENTIFIER);
 243                 goto err;
 244         }
 245
 246         return pol;
 247
 248         merr:
 249         X509V3err(X509V3_F_POLICY_SECTION,ERR_R_MALLOC_FAILURE);
 250
 251         err:
 252         POLICYINFO_free(pol);
 253         return NULL;
 254
 255
 256 }
 257
 258 static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
 259                                         STACK_OF(CONF_VALUE) *unot, int ia5org)
 260 {
 261         int i;
 262         CONF_VALUE *cnf;
 263         USERNOTICE *not;
 264         POLICYQUALINFO *qual;
 265         if(!(qual = POLICYQUALINFO_new())) goto merr;
 266         qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
 267         if(!(not = USERNOTICE_new())) goto merr;
 268         qual->d.usernotice = not;
 269         for(i = 0; i < sk_CONF_VALUE_num(unot); i++) {
 270                 cnf = sk_CONF_VALUE_value(unot, i);
 271                 if(!strcmp(cnf->name, "explicitText")) {
 272                         not->exptext = M_ASN1_VISIBLESTRING_new();
 273                         if(!ASN1_STRING_set(not->exptext, cnf->value,
 274                                                  strlen(cnf->value))) goto merr;
 275                 } else if(!strcmp(cnf->name, "organization")) {
 276                         NOTICEREF *nref;
 277                         if(!not->noticeref) {
 278                                 if(!(nref = NOTICEREF_new())) goto merr;
 279                                 not->noticeref = nref;
 280                         } else nref = not->noticeref;
 281                         if(ia5org) nref->organization = M_ASN1_IA5STRING_new();
 282                         else nref->organization = M_ASN1_VISIBLESTRING_new();
 283                         if(!ASN1_STRING_set(nref->organization, cnf->value,
 284                                                  strlen(cnf->value))) goto merr;
 285                 } else if(!strcmp(cnf->name, "noticeNumbers")) {
 286                         NOTICEREF *nref;
 287                         STACK_OF(CONF_VALUE) *nos;
 288                         if(!not->noticeref) {
 289                                 if(!(nref = NOTICEREF_new())) goto merr;
 290                                 not->noticeref = nref;
 291                         } else nref = not->noticeref;
 292                         nos = X509V3_parse_list(cnf->value);
 293                         if(!nos || !sk_CONF_VALUE_num(nos)) {
 294                                 X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_NUMBERS);
 295                                 X509V3_conf_err(cnf);
 296                                 goto err;
 297                         }
 298                         nref->noticenos = nref_nos(nos);
 299                         sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
 300                         if(!nref->noticenos) goto err;
 301                 } else {
 302                         X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_OPTION);
 303
 304                         X509V3_conf_err(cnf);
 305                         goto err;
 306                 }
 307         }
 308
 309         if(not->noticeref &&
 310               (!not->noticeref->noticenos || !not->noticeref->organization)) {
 311                         X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
 312                         goto err;
 313         }
 314
 315         return qual;
 316
 317         merr:
 318         X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);
 319
 320         err:
 321         POLICYQUALINFO_free(qual);
 322         return NULL;
 323 }
 324
 325 static STACK_OF(ASN1_INTEGER) *nref_nos(STACK_OF(CONF_VALUE) *nos)
 326 {
 327         STACK_OF(ASN1_INTEGER) *nnums;
 328         CONF_VALUE *cnf;
 329         ASN1_INTEGER *aint;
 330
 331         int i;
 332
 333         if(!(nnums = sk_ASN1_INTEGER_new_null())) goto merr;
 334         for(i = 0; i < sk_CONF_VALUE_num(nos); i++) {
 335                 cnf = sk_CONF_VALUE_value(nos, i);
 336                 if(!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {
 337                         X509V3err(X509V3_F_NREF_NOS,X509V3_R_INVALID_NUMBER);
 338                         goto err;
 339                 }
 340                 if(!sk_ASN1_INTEGER_push(nnums, aint)) goto merr;
 341         }
 342         return nnums;
 343
 344         merr:
 345         X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);
 346
 347         err:
 348         sk_ASN1_INTEGER_pop_free(nnums, ASN1_STRING_free);
 349         return NULL;
 350 }
 351
 352
 353 static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
 354                 BIO *out, int indent)
 355 {
 356         int i;
 357         POLICYINFO *pinfo;
 358         /* First print out the policy OIDs */
 359         for(i = 0; i < sk_POLICYINFO_num(pol); i++) {
 360                 pinfo = sk_POLICYINFO_value(pol, i);
 361                 BIO_printf(out, "%*sPolicy: ", indent, "");
 362                 i2a_ASN1_OBJECT(out, pinfo->policyid);
 363                 BIO_puts(out, "\n");
 364                 if(pinfo->qualifiers)
 365                          print_qualifiers(out, pinfo->qualifiers, indent + 2);
 366         }
 367         return 1;
 368 }
 369
 370 static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
 371                 int indent)
 372 {
 373         POLICYQUALINFO *qualinfo;
 374         int i;
 375         for(i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
 376                 qualinfo = sk_POLICYQUALINFO_value(quals, i);
 377                 switch(OBJ_obj2nid(qualinfo->pqualid))
 378                 {
 379                         case NID_id_qt_cps:
 380                         BIO_printf(out, "%*sCPS: %s\n", indent, "",
 381                                                 qualinfo->d.cpsuri->data);
 382                         break;
 383
 384                         case NID_id_qt_unotice:
 385                         BIO_printf(out, "%*sUser Notice:\n", indent, "");
 386                         print_notice(out, qualinfo->d.usernotice, indent + 2);
 387                         break;
 388
 389                         default:
 390                         BIO_printf(out, "%*sUnknown Qualifier: ",
 391                                                          indent + 2, "");
 392
 393                         i2a_ASN1_OBJECT(out, qualinfo->pqualid);
 394                         BIO_puts(out, "\n");
 395                         break;
 396                 }
 397         }
 398 }
 399
 400 static void print_notice(BIO *out, USERNOTICE *notice, int indent)
 401 {
 402         int i;
 403         if(notice->noticeref) {
 404                 NOTICEREF *ref;
 405                 ref = notice->noticeref;
 406                 BIO_printf(out, "%*sOrganization: %s\n", indent, "",
 407                                                  ref->organization->data);
 408                 BIO_printf(out, "%*sNumber%s: ", indent, "",
 409                            sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
 410                 for(i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
 411                         ASN1_INTEGER *num;
 412                         char *tmp;
 413                         num = sk_ASN1_INTEGER_value(ref->noticenos, i);
 414                         if(i) BIO_puts(out, ", ");
 415                         tmp = i2s_ASN1_INTEGER(NULL, num);
 416                         BIO_puts(out, tmp);
 417                         OPENSSL_free(tmp);
 418                 }
 419                 BIO_puts(out, "\n");
 420         }
 421         if(notice->exptext)
 422                 BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
 423                                                          notice->exptext->data);
 424 }
 425