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 DEFINE_STACK_OF(CONF_VALUE)
17 DEFINE_STACK_OF(GENERAL_NAME)
19 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
21 STACK_OF(CONF_VALUE) *nval);
22 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
24 STACK_OF(CONF_VALUE) *nval);
25 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
26 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
27 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
28 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
30 const X509V3_EXT_METHOD v3_alt[3] = {
31 {NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
34 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
35 (X509V3_EXT_V2I)v2i_subject_alt,
38 {NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
41 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
42 (X509V3_EXT_V2I)v2i_issuer_alt,
45 {NID_certificate_issuer, 0, ASN1_ITEM_ref(GENERAL_NAMES),
48 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
49 NULL, NULL, NULL, NULL},
52 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
54 STACK_OF(CONF_VALUE) *ret)
58 STACK_OF(CONF_VALUE) *tmpret = NULL, *origret = ret;
60 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
61 gen = sk_GENERAL_NAME_value(gens, i);
63 * i2v_GENERAL_NAME allocates ret if it is NULL. If something goes
64 * wrong we need to free the stack - but only if it was empty when we
65 * originally entered this function.
67 tmpret = i2v_GENERAL_NAME(method, gen, ret);
70 sk_CONF_VALUE_pop_free(ret, X509V3_conf_free);
76 return sk_CONF_VALUE_new_null();
80 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
82 STACK_OF(CONF_VALUE) *ret)
85 char oline[256], htmp[5];
90 switch (OBJ_obj2nid(gen->d.otherName->type_id)) {
91 case NID_id_on_SmtpUTF8Mailbox:
92 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
93 || !X509V3_add_value_uchar("othername: SmtpUTF8Mailbox:",
94 gen->d.otherName->value->value.utf8string->data,
99 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
100 || !X509V3_add_value_uchar("othername: XmppAddr:",
101 gen->d.otherName->value->value.utf8string->data,
106 if (gen->d.otherName->value->type != V_ASN1_IA5STRING
107 || !X509V3_add_value_uchar("othername: SRVName:",
108 gen->d.otherName->value->value.ia5string->data,
113 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
114 || !X509V3_add_value_uchar("othername: UPN:",
115 gen->d.otherName->value->value.utf8string->data,
120 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
121 || !X509V3_add_value_uchar("othername: NAIRealm:",
122 gen->d.otherName->value->value.utf8string->data,
127 if (!X509V3_add_value("othername", "<unsupported>", &ret))
134 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
139 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
144 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
149 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
154 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
159 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
160 || !X509V3_add_value("DirName", oline, &ret))
166 if (gen->d.ip->length == 4)
167 BIO_snprintf(oline, sizeof(oline), "%d.%d.%d.%d",
168 p[0], p[1], p[2], p[3]);
169 else if (gen->d.ip->length == 16) {
171 for (i = 0; i < 8; i++) {
172 BIO_snprintf(htmp, sizeof(htmp), "%X", p[0] << 8 | p[1]);
179 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
183 if (!X509V3_add_value("IP Address", oline, &ret))
188 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
189 if (!X509V3_add_value("Registered ID", oline, &ret))
196 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
203 nid = OBJ_obj2nid(gen->d.otherName->type_id);
204 /* Validate the types are as we expect before we use them */
205 if ((nid == NID_SRVName
206 && gen->d.otherName->value->type != V_ASN1_IA5STRING)
207 || (nid != NID_SRVName
208 && gen->d.otherName->value->type != V_ASN1_UTF8STRING)) {
209 BIO_printf(out, "othername:<unsupported>");
214 case NID_id_on_SmtpUTF8Mailbox:
215 BIO_printf(out, "othername:SmtpUTF8Mailbox:%s",
216 gen->d.otherName->value->value.utf8string->data);
219 BIO_printf(out, "othername:XmppAddr:%s",
220 gen->d.otherName->value->value.utf8string->data);
223 BIO_printf(out, "othername:SRVName:%s",
224 gen->d.otherName->value->value.ia5string->data);
227 BIO_printf(out, "othername:UPN:%s",
228 gen->d.otherName->value->value.utf8string->data);
231 BIO_printf(out, "othername:NAIRealm:%s",
232 gen->d.otherName->value->value.utf8string->data);
235 BIO_printf(out, "othername:<unsupported>");
241 BIO_printf(out, "X400Name:<unsupported>");
245 /* Maybe fix this: it is supported now */
246 BIO_printf(out, "EdiPartyName:<unsupported>");
250 BIO_printf(out, "email:");
251 ASN1_STRING_print(out, gen->d.ia5);
255 BIO_printf(out, "DNS:");
256 ASN1_STRING_print(out, gen->d.ia5);
260 BIO_printf(out, "URI:");
261 ASN1_STRING_print(out, gen->d.ia5);
265 BIO_printf(out, "DirName:");
266 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
271 if (gen->d.ip->length == 4)
272 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
273 else if (gen->d.ip->length == 16) {
274 BIO_printf(out, "IP Address");
275 for (i = 0; i < 8; i++) {
276 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
280 BIO_printf(out, "IP Address:<invalid>");
286 BIO_printf(out, "Registered ID:");
287 i2a_ASN1_OBJECT(out, gen->d.rid);
293 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
295 STACK_OF(CONF_VALUE) *nval)
297 const int num = sk_CONF_VALUE_num(nval);
298 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
302 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
303 sk_GENERAL_NAME_free(gens);
306 for (i = 0; i < num; i++) {
307 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
309 if (!v3_name_cmp(cnf->name, "issuer")
310 && cnf->value && strcmp(cnf->value, "copy") == 0) {
311 if (!copy_issuer(ctx, gens))
314 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
318 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
323 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
327 /* Append subject altname of issuer to issuer alt name of subject */
329 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
336 if (ctx && (ctx->flags == CTX_TEST))
338 if (!ctx || !ctx->issuer_cert) {
339 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
342 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
345 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
346 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
347 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
351 num = sk_GENERAL_NAME_num(ialt);
352 if (!sk_GENERAL_NAME_reserve(gens, num)) {
353 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
357 for (i = 0; i < num; i++) {
358 gen = sk_GENERAL_NAME_value(ialt, i);
359 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
361 sk_GENERAL_NAME_free(ialt);
370 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
372 STACK_OF(CONF_VALUE) *nval)
376 const int num = sk_CONF_VALUE_num(nval);
379 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
381 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
382 sk_GENERAL_NAME_free(gens);
386 for (i = 0; i < num; i++) {
387 cnf = sk_CONF_VALUE_value(nval, i);
388 if (!v3_name_cmp(cnf->name, "email")
389 && cnf->value && strcmp(cnf->value, "copy") == 0) {
390 if (!copy_email(ctx, gens, 0))
392 } else if (!v3_name_cmp(cnf->name, "email")
393 && cnf->value && strcmp(cnf->value, "move") == 0) {
394 if (!copy_email(ctx, gens, 1))
398 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
400 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
405 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
410 * Copy any email addresses in a certificate or request to GENERAL_NAMES
413 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
416 ASN1_IA5STRING *email = NULL;
418 GENERAL_NAME *gen = NULL;
421 if (ctx != NULL && ctx->flags == CTX_TEST)
424 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
425 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
428 /* Find the subject name */
429 if (ctx->subject_cert)
430 nm = X509_get_subject_name(ctx->subject_cert);
432 nm = X509_REQ_get_subject_name(ctx->subject_req);
434 /* Now add any email address(es) to STACK */
435 while ((i = X509_NAME_get_index_by_NID(nm,
436 NID_pkcs9_emailAddress, i)) >= 0) {
437 ne = X509_NAME_get_entry(nm, i);
438 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
440 X509_NAME_delete_entry(nm, i);
441 X509_NAME_ENTRY_free(ne);
444 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
445 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
450 gen->type = GEN_EMAIL;
451 if (!sk_GENERAL_NAME_push(gens, gen)) {
452 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
461 GENERAL_NAME_free(gen);
462 ASN1_IA5STRING_free(email);
467 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
468 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
473 const int num = sk_CONF_VALUE_num(nval);
476 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
478 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
479 sk_GENERAL_NAME_free(gens);
483 for (i = 0; i < num; i++) {
484 cnf = sk_CONF_VALUE_value(nval, i);
485 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
487 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
491 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
495 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
496 X509V3_CTX *ctx, CONF_VALUE *cnf)
498 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
501 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
502 const X509V3_EXT_METHOD *method,
503 X509V3_CTX *ctx, int gen_type, const char *value,
507 GENERAL_NAME *gen = NULL;
510 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
517 gen = GENERAL_NAME_new();
519 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
534 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
535 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
536 ERR_add_error_data(2, "value=", value);
545 gen->d.ip = a2i_IPADDRESS_NC(value);
547 gen->d.ip = a2i_IPADDRESS(value);
548 if (gen->d.ip == NULL) {
549 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
550 ERR_add_error_data(2, "value=", value);
556 if (!do_dirname(gen, value, ctx)) {
557 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
563 if (!do_othername(gen, value, ctx)) {
564 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
569 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
574 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
575 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
577 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
582 gen->type = gen_type;
588 GENERAL_NAME_free(gen);
592 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
593 const X509V3_EXT_METHOD *method,
594 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
604 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
608 if (!v3_name_cmp(name, "email"))
610 else if (!v3_name_cmp(name, "URI"))
612 else if (!v3_name_cmp(name, "DNS"))
614 else if (!v3_name_cmp(name, "RID"))
616 else if (!v3_name_cmp(name, "IP"))
618 else if (!v3_name_cmp(name, "dirName"))
620 else if (!v3_name_cmp(name, "otherName"))
621 type = GEN_OTHERNAME;
623 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
624 ERR_add_error_data(2, "name=", name);
628 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
632 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
634 char *objtmp = NULL, *p;
637 if ((p = strchr(value, ';')) == NULL)
639 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
642 * Free this up because we will overwrite it. no need to free type_id
643 * because it is static
645 ASN1_TYPE_free(gen->d.otherName->value);
646 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
649 objtmp = OPENSSL_strndup(value, objlen);
652 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
653 OPENSSL_free(objtmp);
654 if (!gen->d.otherName->type_id)
659 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
662 STACK_OF(CONF_VALUE) *sk = NULL;
665 if ((nm = X509_NAME_new()) == NULL)
667 sk = X509V3_get_section(ctx, value);
669 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
670 ERR_add_error_data(2, "section=", value);
673 /* FIXME: should allow other character types... */
674 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
682 X509V3_section_free(ctx, sk);