2 * Copyright 1999-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/conf.h>
13 #include <openssl/x509v3.h>
16 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
18 STACK_OF(CONF_VALUE) *nval);
19 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
21 STACK_OF(CONF_VALUE) *nval);
22 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
23 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
24 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
25 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
27 const X509V3_EXT_METHOD v3_alt[3] = {
28 {NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
31 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
32 (X509V3_EXT_V2I)v2i_subject_alt,
35 {NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
38 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
39 (X509V3_EXT_V2I)v2i_issuer_alt,
42 {NID_certificate_issuer, 0, ASN1_ITEM_ref(GENERAL_NAMES),
45 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
46 NULL, NULL, NULL, NULL},
49 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
51 STACK_OF(CONF_VALUE) *ret)
55 STACK_OF(CONF_VALUE) *tmpret = NULL, *origret = ret;
57 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
58 gen = sk_GENERAL_NAME_value(gens, i);
60 * i2v_GENERAL_NAME allocates ret if it is NULL. If something goes
61 * wrong we need to free the stack - but only if it was empty when we
62 * originally entered this function.
64 tmpret = i2v_GENERAL_NAME(method, gen, ret);
67 sk_CONF_VALUE_pop_free(ret, X509V3_conf_free);
73 return sk_CONF_VALUE_new_null();
77 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
79 STACK_OF(CONF_VALUE) *ret)
82 char oline[256], htmp[5];
87 switch (OBJ_obj2nid(gen->d.otherName->type_id)) {
88 case NID_id_on_SmtpUTF8Mailbox:
89 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
90 || !X509V3_add_value_uchar("othername: SmtpUTF8Mailbox:",
91 gen->d.otherName->value->value.utf8string->data,
96 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
97 || !X509V3_add_value_uchar("othername: XmppAddr:",
98 gen->d.otherName->value->value.utf8string->data,
103 if (gen->d.otherName->value->type != V_ASN1_IA5STRING
104 || !X509V3_add_value_uchar("othername: SRVName:",
105 gen->d.otherName->value->value.ia5string->data,
110 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
111 || !X509V3_add_value_uchar("othername: UPN:",
112 gen->d.otherName->value->value.utf8string->data,
117 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
118 || !X509V3_add_value_uchar("othername: NAIRealm:",
119 gen->d.otherName->value->value.utf8string->data,
124 if (!X509V3_add_value("othername", "<unsupported>", &ret))
131 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
136 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
141 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
146 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
151 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
156 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
157 || !X509V3_add_value("DirName", oline, &ret))
163 if (gen->d.ip->length == 4)
164 BIO_snprintf(oline, sizeof(oline), "%d.%d.%d.%d",
165 p[0], p[1], p[2], p[3]);
166 else if (gen->d.ip->length == 16) {
168 for (i = 0; i < 8; i++) {
169 BIO_snprintf(htmp, sizeof(htmp), "%X", p[0] << 8 | p[1]);
176 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
180 if (!X509V3_add_value("IP Address", oline, &ret))
185 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
186 if (!X509V3_add_value("Registered ID", oline, &ret))
193 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
200 nid = OBJ_obj2nid(gen->d.otherName->type_id);
201 /* Validate the types are as we expect before we use them */
202 if ((nid == NID_SRVName
203 && gen->d.otherName->value->type != V_ASN1_IA5STRING)
204 || (nid != NID_SRVName
205 && gen->d.otherName->value->type != V_ASN1_UTF8STRING)) {
206 BIO_printf(out, "othername:<unsupported>");
211 case NID_id_on_SmtpUTF8Mailbox:
212 BIO_printf(out, "othername:SmtpUTF8Mailbox:%s",
213 gen->d.otherName->value->value.utf8string->data);
216 BIO_printf(out, "othername:XmppAddr:%s",
217 gen->d.otherName->value->value.utf8string->data);
220 BIO_printf(out, "othername:SRVName:%s",
221 gen->d.otherName->value->value.ia5string->data);
224 BIO_printf(out, "othername:UPN:%s",
225 gen->d.otherName->value->value.utf8string->data);
228 BIO_printf(out, "othername:NAIRealm:%s",
229 gen->d.otherName->value->value.utf8string->data);
232 BIO_printf(out, "othername:<unsupported>");
238 BIO_printf(out, "X400Name:<unsupported>");
242 /* Maybe fix this: it is supported now */
243 BIO_printf(out, "EdiPartyName:<unsupported>");
247 BIO_printf(out, "email:");
248 ASN1_STRING_print(out, gen->d.ia5);
252 BIO_printf(out, "DNS:");
253 ASN1_STRING_print(out, gen->d.ia5);
257 BIO_printf(out, "URI:");
258 ASN1_STRING_print(out, gen->d.ia5);
262 BIO_printf(out, "DirName:");
263 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
268 if (gen->d.ip->length == 4)
269 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
270 else if (gen->d.ip->length == 16) {
271 BIO_printf(out, "IP Address");
272 for (i = 0; i < 8; i++) {
273 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
277 BIO_printf(out, "IP Address:<invalid>");
283 BIO_printf(out, "Registered ID:");
284 i2a_ASN1_OBJECT(out, gen->d.rid);
290 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
292 STACK_OF(CONF_VALUE) *nval)
294 const int num = sk_CONF_VALUE_num(nval);
295 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
299 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
300 sk_GENERAL_NAME_free(gens);
303 for (i = 0; i < num; i++) {
304 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
306 if (!v3_name_cmp(cnf->name, "issuer")
307 && cnf->value && strcmp(cnf->value, "copy") == 0) {
308 if (!copy_issuer(ctx, gens))
311 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
315 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
320 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
324 /* Append subject altname of issuer to issuer alt name of subject */
326 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
333 if (ctx && (ctx->flags == CTX_TEST))
335 if (!ctx || !ctx->issuer_cert) {
336 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
339 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
342 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
343 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
344 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
348 num = sk_GENERAL_NAME_num(ialt);
349 if (!sk_GENERAL_NAME_reserve(gens, num)) {
350 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
354 for (i = 0; i < num; i++) {
355 gen = sk_GENERAL_NAME_value(ialt, i);
356 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
358 sk_GENERAL_NAME_free(ialt);
367 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
369 STACK_OF(CONF_VALUE) *nval)
373 const int num = sk_CONF_VALUE_num(nval);
376 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
378 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
379 sk_GENERAL_NAME_free(gens);
383 for (i = 0; i < num; i++) {
384 cnf = sk_CONF_VALUE_value(nval, i);
385 if (!v3_name_cmp(cnf->name, "email")
386 && cnf->value && strcmp(cnf->value, "copy") == 0) {
387 if (!copy_email(ctx, gens, 0))
389 } else if (!v3_name_cmp(cnf->name, "email")
390 && cnf->value && strcmp(cnf->value, "move") == 0) {
391 if (!copy_email(ctx, gens, 1))
395 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
397 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
402 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
407 * Copy any email addresses in a certificate or request to GENERAL_NAMES
410 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
413 ASN1_IA5STRING *email = NULL;
415 GENERAL_NAME *gen = NULL;
418 if (ctx != NULL && ctx->flags == CTX_TEST)
421 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
422 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
425 /* Find the subject name */
426 if (ctx->subject_cert)
427 nm = X509_get_subject_name(ctx->subject_cert);
429 nm = X509_REQ_get_subject_name(ctx->subject_req);
431 /* Now add any email address(es) to STACK */
432 while ((i = X509_NAME_get_index_by_NID(nm,
433 NID_pkcs9_emailAddress, i)) >= 0) {
434 ne = X509_NAME_get_entry(nm, i);
435 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
437 X509_NAME_delete_entry(nm, i);
438 X509_NAME_ENTRY_free(ne);
441 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
442 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
447 gen->type = GEN_EMAIL;
448 if (!sk_GENERAL_NAME_push(gens, gen)) {
449 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
458 GENERAL_NAME_free(gen);
459 ASN1_IA5STRING_free(email);
464 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
465 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
470 const int num = sk_CONF_VALUE_num(nval);
473 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
475 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
476 sk_GENERAL_NAME_free(gens);
480 for (i = 0; i < num; i++) {
481 cnf = sk_CONF_VALUE_value(nval, i);
482 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
484 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
488 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
492 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
493 X509V3_CTX *ctx, CONF_VALUE *cnf)
495 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
498 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
499 const X509V3_EXT_METHOD *method,
500 X509V3_CTX *ctx, int gen_type, const char *value,
504 GENERAL_NAME *gen = NULL;
507 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
514 gen = GENERAL_NAME_new();
516 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
531 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
532 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
533 ERR_add_error_data(2, "value=", value);
542 gen->d.ip = a2i_IPADDRESS_NC(value);
544 gen->d.ip = a2i_IPADDRESS(value);
545 if (gen->d.ip == NULL) {
546 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
547 ERR_add_error_data(2, "value=", value);
553 if (!do_dirname(gen, value, ctx)) {
554 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
560 if (!do_othername(gen, value, ctx)) {
561 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
566 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
571 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
572 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
574 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
579 gen->type = gen_type;
585 GENERAL_NAME_free(gen);
589 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
590 const X509V3_EXT_METHOD *method,
591 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
601 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
605 if (!v3_name_cmp(name, "email"))
607 else if (!v3_name_cmp(name, "URI"))
609 else if (!v3_name_cmp(name, "DNS"))
611 else if (!v3_name_cmp(name, "RID"))
613 else if (!v3_name_cmp(name, "IP"))
615 else if (!v3_name_cmp(name, "dirName"))
617 else if (!v3_name_cmp(name, "otherName"))
618 type = GEN_OTHERNAME;
620 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
621 ERR_add_error_data(2, "name=", name);
625 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
629 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
631 char *objtmp = NULL, *p;
634 if ((p = strchr(value, ';')) == NULL)
636 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
639 * Free this up because we will overwrite it. no need to free type_id
640 * because it is static
642 ASN1_TYPE_free(gen->d.otherName->value);
643 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
646 objtmp = OPENSSL_strndup(value, objlen);
649 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
650 OPENSSL_free(objtmp);
651 if (!gen->d.otherName->type_id)
656 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
659 STACK_OF(CONF_VALUE) *sk = NULL;
662 if ((nm = X509_NAME_new()) == NULL)
664 sk = X509V3_get_section(ctx, value);
666 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
667 ERR_add_error_data(2, "section=", value);
670 /* FIXME: should allow other character types... */
671 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
679 X509V3_section_free(ctx, sk);