v3_alt.c revision 109998
1/* v3_alt.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/x509v3.h> 63 64static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 65static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 66static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p); 67static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens); 68X509V3_EXT_METHOD v3_alt[] = { 69{ NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES), 700,0,0,0, 710,0, 72(X509V3_EXT_I2V)i2v_GENERAL_NAMES, 73(X509V3_EXT_V2I)v2i_subject_alt, 74NULL, NULL, NULL}, 75 76{ NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES), 770,0,0,0, 780,0, 79(X509V3_EXT_I2V)i2v_GENERAL_NAMES, 80(X509V3_EXT_V2I)v2i_issuer_alt, 81NULL, NULL, NULL}, 82}; 83 84STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, 85 GENERAL_NAMES *gens, STACK_OF(CONF_VALUE) *ret) 86{ 87 int i; 88 GENERAL_NAME *gen; 89 for(i = 0; i < sk_GENERAL_NAME_num(gens); i++) { 90 gen = sk_GENERAL_NAME_value(gens, i); 91 ret = i2v_GENERAL_NAME(method, gen, ret); 92 } 93 if(!ret) return sk_CONF_VALUE_new_null(); 94 return ret; 95} 96 97STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, 98 GENERAL_NAME *gen, STACK_OF(CONF_VALUE) *ret) 99{ 100 unsigned char *p; 101 char oline[256]; 102 switch (gen->type) 103 { 104 case GEN_OTHERNAME: 105 X509V3_add_value("othername","<unsupported>", &ret); 106 break; 107 108 case GEN_X400: 109 X509V3_add_value("X400Name","<unsupported>", &ret); 110 break; 111 112 case GEN_EDIPARTY: 113 X509V3_add_value("EdiPartyName","<unsupported>", &ret); 114 break; 115 116 case GEN_EMAIL: 117 X509V3_add_value_uchar("email",gen->d.ia5->data, &ret); 118 break; 119 120 case GEN_DNS: 121 X509V3_add_value_uchar("DNS",gen->d.ia5->data, &ret); 122 break; 123 124 case GEN_URI: 125 X509V3_add_value_uchar("URI",gen->d.ia5->data, &ret); 126 break; 127 128 case GEN_DIRNAME: 129 X509_NAME_oneline(gen->d.dirn, oline, 256); 130 X509V3_add_value("DirName",oline, &ret); 131 break; 132 133 case GEN_IPADD: 134 p = gen->d.ip->data; 135 /* BUG: doesn't support IPV6 */ 136 if(gen->d.ip->length != 4) { 137 X509V3_add_value("IP Address","<invalid>", &ret); 138 break; 139 } 140 sprintf(oline, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); 141 X509V3_add_value("IP Address",oline, &ret); 142 break; 143 144 case GEN_RID: 145 i2t_ASN1_OBJECT(oline, 256, gen->d.rid); 146 X509V3_add_value("Registered ID",oline, &ret); 147 break; 148 } 149 return ret; 150} 151 152int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen) 153{ 154 unsigned char *p; 155 switch (gen->type) 156 { 157 case GEN_OTHERNAME: 158 BIO_printf(out, "othername:<unsupported>"); 159 break; 160 161 case GEN_X400: 162 BIO_printf(out, "X400Name:<unsupported>"); 163 break; 164 165 case GEN_EDIPARTY: 166 /* Maybe fix this: it is supported now */ 167 BIO_printf(out, "EdiPartyName:<unsupported>"); 168 break; 169 170 case GEN_EMAIL: 171 BIO_printf(out, "email:%s",gen->d.ia5->data); 172 break; 173 174 case GEN_DNS: 175 BIO_printf(out, "DNS:%s",gen->d.ia5->data); 176 break; 177 178 case GEN_URI: 179 BIO_printf(out, "URI:%s",gen->d.ia5->data); 180 break; 181 182 case GEN_DIRNAME: 183 BIO_printf(out, "DirName: "); 184 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE); 185 break; 186 187 case GEN_IPADD: 188 p = gen->d.ip->data; 189 /* BUG: doesn't support IPV6 */ 190 if(gen->d.ip->length != 4) { 191 BIO_printf(out,"IP Address:<invalid>"); 192 break; 193 } 194 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]); 195 break; 196 197 case GEN_RID: 198 BIO_printf(out, "Registered ID"); 199 i2a_ASN1_OBJECT(out, gen->d.rid); 200 break; 201 } 202 return 1; 203} 204 205static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, 206 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval) 207{ 208 GENERAL_NAMES *gens = NULL; 209 CONF_VALUE *cnf; 210 int i; 211 if(!(gens = sk_GENERAL_NAME_new_null())) { 212 X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE); 213 return NULL; 214 } 215 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { 216 cnf = sk_CONF_VALUE_value(nval, i); 217 if(!name_cmp(cnf->name, "issuer") && cnf->value && 218 !strcmp(cnf->value, "copy")) { 219 if(!copy_issuer(ctx, gens)) goto err; 220 } else { 221 GENERAL_NAME *gen; 222 if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 223 goto err; 224 sk_GENERAL_NAME_push(gens, gen); 225 } 226 } 227 return gens; 228 err: 229 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 230 return NULL; 231} 232 233/* Append subject altname of issuer to issuer alt name of subject */ 234 235static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens) 236{ 237 GENERAL_NAMES *ialt; 238 GENERAL_NAME *gen; 239 X509_EXTENSION *ext; 240 int i; 241 if(ctx && (ctx->flags == CTX_TEST)) return 1; 242 if(!ctx || !ctx->issuer_cert) { 243 X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS); 244 goto err; 245 } 246 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1); 247 if(i < 0) return 1; 248 if(!(ext = X509_get_ext(ctx->issuer_cert, i)) || 249 !(ialt = X509V3_EXT_d2i(ext)) ) { 250 X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR); 251 goto err; 252 } 253 254 for(i = 0; i < sk_GENERAL_NAME_num(ialt); i++) { 255 gen = sk_GENERAL_NAME_value(ialt, i); 256 if(!sk_GENERAL_NAME_push(gens, gen)) { 257 X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE); 258 goto err; 259 } 260 } 261 sk_GENERAL_NAME_free(ialt); 262 263 return 1; 264 265 err: 266 return 0; 267 268} 269 270static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, 271 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval) 272{ 273 GENERAL_NAMES *gens = NULL; 274 CONF_VALUE *cnf; 275 int i; 276 if(!(gens = sk_GENERAL_NAME_new_null())) { 277 X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE); 278 return NULL; 279 } 280 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { 281 cnf = sk_CONF_VALUE_value(nval, i); 282 if(!name_cmp(cnf->name, "email") && cnf->value && 283 !strcmp(cnf->value, "copy")) { 284 if(!copy_email(ctx, gens, 0)) goto err; 285 } else if(!name_cmp(cnf->name, "email") && cnf->value && 286 !strcmp(cnf->value, "move")) { 287 if(!copy_email(ctx, gens, 1)) goto err; 288 } else { 289 GENERAL_NAME *gen; 290 if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 291 goto err; 292 sk_GENERAL_NAME_push(gens, gen); 293 } 294 } 295 return gens; 296 err: 297 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 298 return NULL; 299} 300 301/* Copy any email addresses in a certificate or request to 302 * GENERAL_NAMES 303 */ 304 305static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p) 306{ 307 X509_NAME *nm; 308 ASN1_IA5STRING *email = NULL; 309 X509_NAME_ENTRY *ne; 310 GENERAL_NAME *gen = NULL; 311 int i; 312 if(ctx->flags == CTX_TEST) return 1; 313 if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) { 314 X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS); 315 goto err; 316 } 317 /* Find the subject name */ 318 if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert); 319 else nm = X509_REQ_get_subject_name(ctx->subject_req); 320 321 /* Now add any email address(es) to STACK */ 322 i = -1; 323 while((i = X509_NAME_get_index_by_NID(nm, 324 NID_pkcs9_emailAddress, i)) >= 0) { 325 ne = X509_NAME_get_entry(nm, i); 326 email = M_ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne)); 327 if (move_p) 328 { 329 X509_NAME_delete_entry(nm, i); 330 i--; 331 } 332 if(!email || !(gen = GENERAL_NAME_new())) { 333 X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE); 334 goto err; 335 } 336 gen->d.ia5 = email; 337 email = NULL; 338 gen->type = GEN_EMAIL; 339 if(!sk_GENERAL_NAME_push(gens, gen)) { 340 X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE); 341 goto err; 342 } 343 gen = NULL; 344 } 345 346 347 return 1; 348 349 err: 350 GENERAL_NAME_free(gen); 351 M_ASN1_IA5STRING_free(email); 352 return 0; 353 354} 355 356GENERAL_NAMES *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method, 357 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval) 358{ 359 GENERAL_NAME *gen; 360 GENERAL_NAMES *gens = NULL; 361 CONF_VALUE *cnf; 362 int i; 363 if(!(gens = sk_GENERAL_NAME_new_null())) { 364 X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE); 365 return NULL; 366 } 367 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { 368 cnf = sk_CONF_VALUE_value(nval, i); 369 if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err; 370 sk_GENERAL_NAME_push(gens, gen); 371 } 372 return gens; 373 err: 374 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 375 return NULL; 376} 377 378GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 379 CONF_VALUE *cnf) 380{ 381char is_string = 0; 382int type; 383GENERAL_NAME *gen = NULL; 384 385char *name, *value; 386 387name = cnf->name; 388value = cnf->value; 389 390if(!value) { 391 X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_MISSING_VALUE); 392 return NULL; 393} 394 395if(!(gen = GENERAL_NAME_new())) { 396 X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE); 397 return NULL; 398} 399 400if(!name_cmp(name, "email")) { 401 is_string = 1; 402 type = GEN_EMAIL; 403} else if(!name_cmp(name, "URI")) { 404 is_string = 1; 405 type = GEN_URI; 406} else if(!name_cmp(name, "DNS")) { 407 is_string = 1; 408 type = GEN_DNS; 409} else if(!name_cmp(name, "RID")) { 410 ASN1_OBJECT *obj; 411 if(!(obj = OBJ_txt2obj(value,0))) { 412 X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_OBJECT); 413 ERR_add_error_data(2, "value=", value); 414 goto err; 415 } 416 gen->d.rid = obj; 417 type = GEN_RID; 418} else if(!name_cmp(name, "IP")) { 419 int i1,i2,i3,i4; 420 unsigned char ip[4]; 421 if((sscanf(value, "%d.%d.%d.%d",&i1,&i2,&i3,&i4) != 4) || 422 (i1 < 0) || (i1 > 255) || (i2 < 0) || (i2 > 255) || 423 (i3 < 0) || (i3 > 255) || (i4 < 0) || (i4 > 255) ) { 424 X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_IP_ADDRESS); 425 ERR_add_error_data(2, "value=", value); 426 goto err; 427 } 428 ip[0] = i1; ip[1] = i2 ; ip[2] = i3 ; ip[3] = i4; 429 if(!(gen->d.ip = M_ASN1_OCTET_STRING_new()) || 430 !ASN1_STRING_set(gen->d.ip, ip, 4)) { 431 X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE); 432 goto err; 433 } 434 type = GEN_IPADD; 435} else { 436 X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_UNSUPPORTED_OPTION); 437 ERR_add_error_data(2, "name=", name); 438 goto err; 439} 440 441if(is_string) { 442 if(!(gen->d.ia5 = M_ASN1_IA5STRING_new()) || 443 !ASN1_STRING_set(gen->d.ia5, (unsigned char*)value, 444 strlen(value))) { 445 X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE); 446 goto err; 447 } 448} 449 450gen->type = type; 451 452return gen; 453 454err: 455GENERAL_NAME_free(gen); 456return NULL; 457} 458