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 (!X509V3_add_value_uchar("othername: SmtpUTF8Mailbox:", gen->d.otherName->value->value.utf8string->data, &ret))
93 if (!X509V3_add_value_uchar("othername: XmppAddr:", gen->d.otherName->value->value.utf8string->data, &ret))
97 if (!X509V3_add_value_uchar("othername: SRVName:", gen->d.otherName->value->value.ia5string->data, &ret))
101 if (!X509V3_add_value_uchar("othername: UPN:", gen->d.otherName->value->value.utf8string->data, &ret))
105 if (!X509V3_add_value("othername", "<unsupported>", &ret))
112 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
117 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
122 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
127 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
132 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
137 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
138 || !X509V3_add_value("DirName", oline, &ret))
144 if (gen->d.ip->length == 4)
145 BIO_snprintf(oline, sizeof(oline), "%d.%d.%d.%d",
146 p[0], p[1], p[2], p[3]);
147 else if (gen->d.ip->length == 16) {
149 for (i = 0; i < 8; i++) {
150 BIO_snprintf(htmp, sizeof(htmp), "%X", p[0] << 8 | p[1]);
157 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
161 if (!X509V3_add_value("IP Address", oline, &ret))
166 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
167 if (!X509V3_add_value("Registered ID", oline, &ret))
174 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
180 switch (OBJ_obj2nid(gen->d.otherName->type_id)) {
181 case NID_id_on_SmtpUTF8Mailbox:
182 BIO_printf(out, "othername:SmtpUTF8Mailbox:%s", gen->d.otherName->value->value.utf8string->data);
185 BIO_printf(out, "othername:XmppAddr:%s", gen->d.otherName->value->value.utf8string->data);
188 BIO_printf(out, "othername:SRVName:%s", gen->d.otherName->value->value.ia5string->data);
191 BIO_printf(out, "othername:UPN:%s", gen->d.otherName->value->value.utf8string->data);
194 BIO_printf(out, "othername:<unsupported>");
200 BIO_printf(out, "X400Name:<unsupported>");
204 /* Maybe fix this: it is supported now */
205 BIO_printf(out, "EdiPartyName:<unsupported>");
209 BIO_printf(out, "email:");
210 ASN1_STRING_print(out, gen->d.ia5);
214 BIO_printf(out, "DNS:");
215 ASN1_STRING_print(out, gen->d.ia5);
219 BIO_printf(out, "URI:");
220 ASN1_STRING_print(out, gen->d.ia5);
224 BIO_printf(out, "DirName:");
225 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
230 if (gen->d.ip->length == 4)
231 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
232 else if (gen->d.ip->length == 16) {
233 BIO_printf(out, "IP Address");
234 for (i = 0; i < 8; i++) {
235 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
239 BIO_printf(out, "IP Address:<invalid>");
245 BIO_printf(out, "Registered ID:");
246 i2a_ASN1_OBJECT(out, gen->d.rid);
252 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
254 STACK_OF(CONF_VALUE) *nval)
256 const int num = sk_CONF_VALUE_num(nval);
257 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
261 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
262 sk_GENERAL_NAME_free(gens);
265 for (i = 0; i < num; i++) {
266 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
268 if (!v3_name_cmp(cnf->name, "issuer")
269 && cnf->value && strcmp(cnf->value, "copy") == 0) {
270 if (!copy_issuer(ctx, gens))
273 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
277 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
282 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
286 /* Append subject altname of issuer to issuer alt name of subject */
288 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
295 if (ctx && (ctx->flags == CTX_TEST))
297 if (!ctx || !ctx->issuer_cert) {
298 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
301 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
304 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
305 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
306 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
310 num = sk_GENERAL_NAME_num(ialt);
311 if (!sk_GENERAL_NAME_reserve(gens, num)) {
312 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
316 for (i = 0; i < num; i++) {
317 gen = sk_GENERAL_NAME_value(ialt, i);
318 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
320 sk_GENERAL_NAME_free(ialt);
329 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
331 STACK_OF(CONF_VALUE) *nval)
335 const int num = sk_CONF_VALUE_num(nval);
338 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
340 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
341 sk_GENERAL_NAME_free(gens);
345 for (i = 0; i < num; i++) {
346 cnf = sk_CONF_VALUE_value(nval, i);
347 if (!v3_name_cmp(cnf->name, "email")
348 && cnf->value && strcmp(cnf->value, "copy") == 0) {
349 if (!copy_email(ctx, gens, 0))
351 } else if (!v3_name_cmp(cnf->name, "email")
352 && cnf->value && strcmp(cnf->value, "move") == 0) {
353 if (!copy_email(ctx, gens, 1))
357 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
359 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
364 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
369 * Copy any email addresses in a certificate or request to GENERAL_NAMES
372 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
375 ASN1_IA5STRING *email = NULL;
377 GENERAL_NAME *gen = NULL;
380 if (ctx != NULL && ctx->flags == CTX_TEST)
383 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
384 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
387 /* Find the subject name */
388 if (ctx->subject_cert)
389 nm = X509_get_subject_name(ctx->subject_cert);
391 nm = X509_REQ_get_subject_name(ctx->subject_req);
393 /* Now add any email address(es) to STACK */
394 while ((i = X509_NAME_get_index_by_NID(nm,
395 NID_pkcs9_emailAddress, i)) >= 0) {
396 ne = X509_NAME_get_entry(nm, i);
397 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
399 X509_NAME_delete_entry(nm, i);
400 X509_NAME_ENTRY_free(ne);
403 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
404 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
409 gen->type = GEN_EMAIL;
410 if (!sk_GENERAL_NAME_push(gens, gen)) {
411 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
420 GENERAL_NAME_free(gen);
421 ASN1_IA5STRING_free(email);
426 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
427 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
432 const int num = sk_CONF_VALUE_num(nval);
435 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
437 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
438 sk_GENERAL_NAME_free(gens);
442 for (i = 0; i < num; i++) {
443 cnf = sk_CONF_VALUE_value(nval, i);
444 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
446 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
450 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
454 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
455 X509V3_CTX *ctx, CONF_VALUE *cnf)
457 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
460 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
461 const X509V3_EXT_METHOD *method,
462 X509V3_CTX *ctx, int gen_type, const char *value,
466 GENERAL_NAME *gen = NULL;
469 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
476 gen = GENERAL_NAME_new();
478 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
493 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
494 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
495 ERR_add_error_data(2, "value=", value);
504 gen->d.ip = a2i_IPADDRESS_NC(value);
506 gen->d.ip = a2i_IPADDRESS(value);
507 if (gen->d.ip == NULL) {
508 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
509 ERR_add_error_data(2, "value=", value);
515 if (!do_dirname(gen, value, ctx)) {
516 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
522 if (!do_othername(gen, value, ctx)) {
523 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
528 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
533 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
534 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
536 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
541 gen->type = gen_type;
547 GENERAL_NAME_free(gen);
551 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
552 const X509V3_EXT_METHOD *method,
553 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
563 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
567 if (!v3_name_cmp(name, "email"))
569 else if (!v3_name_cmp(name, "URI"))
571 else if (!v3_name_cmp(name, "DNS"))
573 else if (!v3_name_cmp(name, "RID"))
575 else if (!v3_name_cmp(name, "IP"))
577 else if (!v3_name_cmp(name, "dirName"))
579 else if (!v3_name_cmp(name, "otherName"))
580 type = GEN_OTHERNAME;
582 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
583 ERR_add_error_data(2, "name=", name);
587 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
591 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
593 char *objtmp = NULL, *p;
596 if ((p = strchr(value, ';')) == NULL)
598 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
601 * Free this up because we will overwrite it. no need to free type_id
602 * because it is static
604 ASN1_TYPE_free(gen->d.otherName->value);
605 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
608 objtmp = OPENSSL_strndup(value, objlen);
611 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
612 OPENSSL_free(objtmp);
613 if (!gen->d.otherName->type_id)
618 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
621 STACK_OF(CONF_VALUE) *sk = NULL;
624 if ((nm = X509_NAME_new()) == NULL)
626 sk = X509V3_get_section(ctx, value);
628 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
629 ERR_add_error_data(2, "section=", value);
632 /* FIXME: should allow other character types... */
633 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
641 X509V3_section_free(ctx, sk);