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>
14 #include <openssl/bio.h>
17 DEFINE_STACK_OF(CONF_VALUE)
18 DEFINE_STACK_OF(GENERAL_NAME)
20 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
22 STACK_OF(CONF_VALUE) *nval);
23 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
25 STACK_OF(CONF_VALUE) *nval);
26 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
27 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
28 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
29 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx);
31 const X509V3_EXT_METHOD v3_alt[3] = {
32 {NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
35 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
36 (X509V3_EXT_V2I)v2i_subject_alt,
39 {NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
42 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
43 (X509V3_EXT_V2I)v2i_issuer_alt,
46 {NID_certificate_issuer, 0, ASN1_ITEM_ref(GENERAL_NAMES),
49 (X509V3_EXT_I2V) i2v_GENERAL_NAMES,
50 NULL, NULL, NULL, NULL},
53 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
55 STACK_OF(CONF_VALUE) *ret)
59 STACK_OF(CONF_VALUE) *tmpret = NULL, *origret = ret;
61 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
62 gen = sk_GENERAL_NAME_value(gens, i);
64 * i2v_GENERAL_NAME allocates ret if it is NULL. If something goes
65 * wrong we need to free the stack - but only if it was empty when we
66 * originally entered this function.
68 tmpret = i2v_GENERAL_NAME(method, gen, ret);
71 sk_CONF_VALUE_pop_free(ret, X509V3_conf_free);
77 return sk_CONF_VALUE_new_null();
81 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
83 STACK_OF(CONF_VALUE) *ret)
87 char oline[256], htmp[5];
92 switch (OBJ_obj2nid(gen->d.otherName->type_id)) {
93 case NID_id_on_SmtpUTF8Mailbox:
94 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
95 || !X509V3_add_value_uchar("othername: SmtpUTF8Mailbox:",
96 gen->d.otherName->value->value.utf8string->data,
101 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
102 || !X509V3_add_value_uchar("othername: XmppAddr:",
103 gen->d.otherName->value->value.utf8string->data,
108 if (gen->d.otherName->value->type != V_ASN1_IA5STRING
109 || !X509V3_add_value_uchar("othername: SRVName:",
110 gen->d.otherName->value->value.ia5string->data,
115 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
116 || !X509V3_add_value_uchar("othername: UPN:",
117 gen->d.otherName->value->value.utf8string->data,
122 if (gen->d.otherName->value->type != V_ASN1_UTF8STRING
123 || !X509V3_add_value_uchar("othername: NAIRealm:",
124 gen->d.otherName->value->value.utf8string->data,
129 if (OBJ_obj2txt(oline, sizeof(oline), gen->d.otherName->type_id, 0) > 0)
130 BIO_snprintf(othername, sizeof(othername), "othername: %s:",
133 strncpy(othername, "othername:", sizeof(othername));
135 /* check if the value is something printable */
136 if (gen->d.otherName->value->type == V_ASN1_IA5STRING) {
137 if (X509V3_add_value_uchar(othername,
138 gen->d.otherName->value->value.ia5string->data,
142 if (gen->d.otherName->value->type == V_ASN1_UTF8STRING) {
143 if (X509V3_add_value_uchar(othername,
144 gen->d.otherName->value->value.utf8string->data,
148 if (!X509V3_add_value(othername, "<unsupported>", &ret))
155 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
160 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
165 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
170 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
175 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
180 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
181 || !X509V3_add_value("DirName", oline, &ret))
187 if (gen->d.ip->length == 4)
188 BIO_snprintf(oline, sizeof(oline), "%d.%d.%d.%d",
189 p[0], p[1], p[2], p[3]);
190 else if (gen->d.ip->length == 16) {
192 for (i = 0; i < 8; i++) {
193 BIO_snprintf(htmp, sizeof(htmp), "%X", p[0] << 8 | p[1]);
200 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
204 if (!X509V3_add_value("IP Address", oline, &ret))
209 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
210 if (!X509V3_add_value("Registered ID", oline, &ret))
217 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
224 nid = OBJ_obj2nid(gen->d.otherName->type_id);
225 /* Validate the types are as we expect before we use them */
226 if ((nid == NID_SRVName
227 && gen->d.otherName->value->type != V_ASN1_IA5STRING)
228 || (nid != NID_SRVName
229 && gen->d.otherName->value->type != V_ASN1_UTF8STRING)) {
230 BIO_printf(out, "othername:<unsupported>");
235 case NID_id_on_SmtpUTF8Mailbox:
236 BIO_printf(out, "othername:SmtpUTF8Mailbox:%s",
237 gen->d.otherName->value->value.utf8string->data);
240 BIO_printf(out, "othername:XmppAddr:%s",
241 gen->d.otherName->value->value.utf8string->data);
244 BIO_printf(out, "othername:SRVName:%s",
245 gen->d.otherName->value->value.ia5string->data);
248 BIO_printf(out, "othername:UPN:%s",
249 gen->d.otherName->value->value.utf8string->data);
252 BIO_printf(out, "othername:NAIRealm:%s",
253 gen->d.otherName->value->value.utf8string->data);
256 BIO_printf(out, "othername:<unsupported>");
262 BIO_printf(out, "X400Name:<unsupported>");
266 /* Maybe fix this: it is supported now */
267 BIO_printf(out, "EdiPartyName:<unsupported>");
271 BIO_printf(out, "email:");
272 ASN1_STRING_print(out, gen->d.ia5);
276 BIO_printf(out, "DNS:");
277 ASN1_STRING_print(out, gen->d.ia5);
281 BIO_printf(out, "URI:");
282 ASN1_STRING_print(out, gen->d.ia5);
286 BIO_printf(out, "DirName:");
287 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
292 if (gen->d.ip->length == 4)
293 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
294 else if (gen->d.ip->length == 16) {
295 BIO_printf(out, "IP Address");
296 for (i = 0; i < 8; i++) {
297 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
301 BIO_printf(out, "IP Address:<invalid>");
307 BIO_printf(out, "Registered ID:");
308 i2a_ASN1_OBJECT(out, gen->d.rid);
314 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
316 STACK_OF(CONF_VALUE) *nval)
318 const int num = sk_CONF_VALUE_num(nval);
319 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
323 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
324 sk_GENERAL_NAME_free(gens);
327 for (i = 0; i < num; i++) {
328 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
330 if (!v3_name_cmp(cnf->name, "issuer")
331 && cnf->value && strcmp(cnf->value, "copy") == 0) {
332 if (!copy_issuer(ctx, gens))
335 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
339 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
344 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
348 /* Append subject altname of issuer to issuer alt name of subject */
350 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
357 if (ctx && (ctx->flags == CTX_TEST))
359 if (!ctx || !ctx->issuer_cert) {
360 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
363 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
366 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
367 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
368 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
372 num = sk_GENERAL_NAME_num(ialt);
373 if (!sk_GENERAL_NAME_reserve(gens, num)) {
374 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
378 for (i = 0; i < num; i++) {
379 gen = sk_GENERAL_NAME_value(ialt, i);
380 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
382 sk_GENERAL_NAME_free(ialt);
391 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
393 STACK_OF(CONF_VALUE) *nval)
397 const int num = sk_CONF_VALUE_num(nval);
400 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
402 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
403 sk_GENERAL_NAME_free(gens);
407 for (i = 0; i < num; i++) {
408 cnf = sk_CONF_VALUE_value(nval, i);
409 if (!v3_name_cmp(cnf->name, "email")
410 && cnf->value && strcmp(cnf->value, "copy") == 0) {
411 if (!copy_email(ctx, gens, 0))
413 } else if (!v3_name_cmp(cnf->name, "email")
414 && cnf->value && strcmp(cnf->value, "move") == 0) {
415 if (!copy_email(ctx, gens, 1))
419 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
421 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
426 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
431 * Copy any email addresses in a certificate or request to GENERAL_NAMES
434 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
437 ASN1_IA5STRING *email = NULL;
439 GENERAL_NAME *gen = NULL;
442 if (ctx != NULL && ctx->flags == CTX_TEST)
445 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
446 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
449 /* Find the subject name */
450 if (ctx->subject_cert)
451 nm = X509_get_subject_name(ctx->subject_cert);
453 nm = X509_REQ_get_subject_name(ctx->subject_req);
455 /* Now add any email address(es) to STACK */
456 while ((i = X509_NAME_get_index_by_NID(nm,
457 NID_pkcs9_emailAddress, i)) >= 0) {
458 ne = X509_NAME_get_entry(nm, i);
459 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
461 X509_NAME_delete_entry(nm, i);
462 X509_NAME_ENTRY_free(ne);
465 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
466 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
471 gen->type = GEN_EMAIL;
472 if (!sk_GENERAL_NAME_push(gens, gen)) {
473 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
482 GENERAL_NAME_free(gen);
483 ASN1_IA5STRING_free(email);
488 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
489 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
494 const int num = sk_CONF_VALUE_num(nval);
497 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
499 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
500 sk_GENERAL_NAME_free(gens);
504 for (i = 0; i < num; i++) {
505 cnf = sk_CONF_VALUE_value(nval, i);
506 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
508 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
512 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
516 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
517 X509V3_CTX *ctx, CONF_VALUE *cnf)
519 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
522 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
523 const X509V3_EXT_METHOD *method,
524 X509V3_CTX *ctx, int gen_type, const char *value,
528 GENERAL_NAME *gen = NULL;
531 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
538 gen = GENERAL_NAME_new();
540 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
555 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
556 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
557 ERR_add_error_data(2, "value=", value);
566 gen->d.ip = a2i_IPADDRESS_NC(value);
568 gen->d.ip = a2i_IPADDRESS(value);
569 if (gen->d.ip == NULL) {
570 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
571 ERR_add_error_data(2, "value=", value);
577 if (!do_dirname(gen, value, ctx)) {
578 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
584 if (!do_othername(gen, value, ctx)) {
585 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
590 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
595 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
596 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
598 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
603 gen->type = gen_type;
609 GENERAL_NAME_free(gen);
613 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
614 const X509V3_EXT_METHOD *method,
615 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
625 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
629 if (!v3_name_cmp(name, "email"))
631 else if (!v3_name_cmp(name, "URI"))
633 else if (!v3_name_cmp(name, "DNS"))
635 else if (!v3_name_cmp(name, "RID"))
637 else if (!v3_name_cmp(name, "IP"))
639 else if (!v3_name_cmp(name, "dirName"))
641 else if (!v3_name_cmp(name, "otherName"))
642 type = GEN_OTHERNAME;
644 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
645 ERR_add_error_data(2, "name=", name);
649 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
653 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
655 char *objtmp = NULL, *p;
658 if ((p = strchr(value, ';')) == NULL)
660 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
663 * Free this up because we will overwrite it. no need to free type_id
664 * because it is static
666 ASN1_TYPE_free(gen->d.otherName->value);
667 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
670 objtmp = OPENSSL_strndup(value, objlen);
673 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
674 OPENSSL_free(objtmp);
675 if (!gen->d.otherName->type_id)
680 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
683 STACK_OF(CONF_VALUE) *sk = NULL;
686 if ((nm = X509_NAME_new()) == NULL)
688 sk = X509V3_get_section(ctx, value);
690 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
691 ERR_add_error_data(2, "section=", value);
694 /* FIXME: should allow other character types... */
695 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
703 X509V3_section_free(ctx, sk);