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 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
56 gen = sk_GENERAL_NAME_value(gens, i);
57 ret = i2v_GENERAL_NAME(method, gen, ret);
60 return sk_CONF_VALUE_new_null();
64 STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
66 STACK_OF(CONF_VALUE) *ret)
69 char oline[256], htmp[5];
74 if (!X509V3_add_value("othername", "<unsupported>", &ret))
79 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
84 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
89 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
94 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
99 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
104 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
105 || !X509V3_add_value("DirName", oline, &ret))
111 if (gen->d.ip->length == 4)
112 BIO_snprintf(oline, sizeof(oline), "%d.%d.%d.%d",
113 p[0], p[1], p[2], p[3]);
114 else if (gen->d.ip->length == 16) {
116 for (i = 0; i < 8; i++) {
117 BIO_snprintf(htmp, sizeof(htmp), "%X", p[0] << 8 | p[1]);
124 if (!X509V3_add_value("IP Address", "<invalid>", &ret))
128 if (!X509V3_add_value("IP Address", oline, &ret))
133 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
134 if (!X509V3_add_value("Registered ID", oline, &ret))
141 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
147 BIO_printf(out, "othername:<unsupported>");
151 BIO_printf(out, "X400Name:<unsupported>");
155 /* Maybe fix this: it is supported now */
156 BIO_printf(out, "EdiPartyName:<unsupported>");
160 BIO_printf(out, "email:");
161 ASN1_STRING_print(out, gen->d.ia5);
165 BIO_printf(out, "DNS:");
166 ASN1_STRING_print(out, gen->d.ia5);
170 BIO_printf(out, "URI:");
171 ASN1_STRING_print(out, gen->d.ia5);
175 BIO_printf(out, "DirName:");
176 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
181 if (gen->d.ip->length == 4)
182 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
183 else if (gen->d.ip->length == 16) {
184 BIO_printf(out, "IP Address");
185 for (i = 0; i < 8; i++) {
186 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
190 BIO_printf(out, "IP Address:<invalid>");
196 BIO_printf(out, "Registered ID:");
197 i2a_ASN1_OBJECT(out, gen->d.rid);
203 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
205 STACK_OF(CONF_VALUE) *nval)
207 const int num = sk_CONF_VALUE_num(nval);
208 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
212 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
213 sk_GENERAL_NAME_free(gens);
216 for (i = 0; i < num; i++) {
217 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
219 if (!name_cmp(cnf->name, "issuer")
220 && cnf->value && strcmp(cnf->value, "copy") == 0) {
221 if (!copy_issuer(ctx, gens))
224 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
228 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
233 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
237 /* Append subject altname of issuer to issuer alt name of subject */
239 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
246 if (ctx && (ctx->flags == CTX_TEST))
248 if (!ctx || !ctx->issuer_cert) {
249 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
252 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
255 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
256 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
257 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
261 num = sk_GENERAL_NAME_num(ialt);
262 if (!sk_GENERAL_NAME_reserve(gens, num)) {
263 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
267 for (i = 0; i < num; i++) {
268 gen = sk_GENERAL_NAME_value(ialt, i);
269 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
271 sk_GENERAL_NAME_free(ialt);
280 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
282 STACK_OF(CONF_VALUE) *nval)
286 const int num = sk_CONF_VALUE_num(nval);
289 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
291 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
292 sk_GENERAL_NAME_free(gens);
296 for (i = 0; i < num; i++) {
297 cnf = sk_CONF_VALUE_value(nval, i);
298 if (!name_cmp(cnf->name, "email")
299 && cnf->value && strcmp(cnf->value, "copy") == 0) {
300 if (!copy_email(ctx, gens, 0))
302 } else if (!name_cmp(cnf->name, "email")
303 && cnf->value && strcmp(cnf->value, "move") == 0) {
304 if (!copy_email(ctx, gens, 1))
308 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
310 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
315 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
320 * Copy any email addresses in a certificate or request to GENERAL_NAMES
323 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
326 ASN1_IA5STRING *email = NULL;
328 GENERAL_NAME *gen = NULL;
331 if (ctx != NULL && ctx->flags == CTX_TEST)
334 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
335 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
338 /* Find the subject name */
339 if (ctx->subject_cert)
340 nm = X509_get_subject_name(ctx->subject_cert);
342 nm = X509_REQ_get_subject_name(ctx->subject_req);
344 /* Now add any email address(es) to STACK */
345 while ((i = X509_NAME_get_index_by_NID(nm,
346 NID_pkcs9_emailAddress, i)) >= 0) {
347 ne = X509_NAME_get_entry(nm, i);
348 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
350 X509_NAME_delete_entry(nm, i);
351 X509_NAME_ENTRY_free(ne);
354 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
355 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
360 gen->type = GEN_EMAIL;
361 if (!sk_GENERAL_NAME_push(gens, gen)) {
362 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
371 GENERAL_NAME_free(gen);
372 ASN1_IA5STRING_free(email);
377 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
378 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
383 const int num = sk_CONF_VALUE_num(nval);
386 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
388 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
389 sk_GENERAL_NAME_free(gens);
393 for (i = 0; i < num; i++) {
394 cnf = sk_CONF_VALUE_value(nval, i);
395 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
397 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
401 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
405 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
406 X509V3_CTX *ctx, CONF_VALUE *cnf)
408 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
411 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
412 const X509V3_EXT_METHOD *method,
413 X509V3_CTX *ctx, int gen_type, const char *value,
417 GENERAL_NAME *gen = NULL;
420 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
427 gen = GENERAL_NAME_new();
429 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
444 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
445 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
446 ERR_add_error_data(2, "value=", value);
455 gen->d.ip = a2i_IPADDRESS_NC(value);
457 gen->d.ip = a2i_IPADDRESS(value);
458 if (gen->d.ip == NULL) {
459 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
460 ERR_add_error_data(2, "value=", value);
466 if (!do_dirname(gen, value, ctx)) {
467 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
473 if (!do_othername(gen, value, ctx)) {
474 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
479 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
484 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
485 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
487 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
492 gen->type = gen_type;
498 GENERAL_NAME_free(gen);
502 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
503 const X509V3_EXT_METHOD *method,
504 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
514 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
518 if (!name_cmp(name, "email"))
520 else if (!name_cmp(name, "URI"))
522 else if (!name_cmp(name, "DNS"))
524 else if (!name_cmp(name, "RID"))
526 else if (!name_cmp(name, "IP"))
528 else if (!name_cmp(name, "dirName"))
530 else if (!name_cmp(name, "otherName"))
531 type = GEN_OTHERNAME;
533 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
534 ERR_add_error_data(2, "name=", name);
538 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
542 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
544 char *objtmp = NULL, *p;
547 if ((p = strchr(value, ';')) == NULL)
549 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
552 * Free this up because we will overwrite it. no need to free type_id
553 * because it is static
555 ASN1_TYPE_free(gen->d.otherName->value);
556 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
559 objtmp = OPENSSL_strndup(value, objlen);
562 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
563 OPENSSL_free(objtmp);
564 if (!gen->d.otherName->type_id)
569 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
572 STACK_OF(CONF_VALUE) *sk = NULL;
575 if ((nm = X509_NAME_new()) == NULL)
577 sk = X509V3_get_section(ctx, value);
579 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
580 ERR_add_error_data(2, "section=", value);
583 /* FIXME: should allow other character types... */
584 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
592 X509V3_section_free(ctx, sk);