2 * Copyright 1999-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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:%s", gen->d.ia5->data);
164 BIO_printf(out, "DNS:%s", gen->d.ia5->data);
168 BIO_printf(out, "URI:%s", gen->d.ia5->data);
172 BIO_printf(out, "DirName:");
173 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
178 if (gen->d.ip->length == 4)
179 BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
180 else if (gen->d.ip->length == 16) {
181 BIO_printf(out, "IP Address");
182 for (i = 0; i < 8; i++) {
183 BIO_printf(out, ":%X", p[0] << 8 | p[1]);
188 BIO_printf(out, "IP Address:<invalid>");
194 BIO_printf(out, "Registered ID:");
195 i2a_ASN1_OBJECT(out, gen->d.rid);
201 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
203 STACK_OF(CONF_VALUE) *nval)
205 const int num = sk_CONF_VALUE_num(nval);
206 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
210 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
211 sk_GENERAL_NAME_free(gens);
214 for (i = 0; i < num; i++) {
215 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
217 if (!name_cmp(cnf->name, "issuer")
218 && cnf->value && strcmp(cnf->value, "copy") == 0) {
219 if (!copy_issuer(ctx, gens))
222 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
226 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
231 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
235 /* Append subject altname of issuer to issuer alt name of subject */
237 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
244 if (ctx && (ctx->flags == CTX_TEST))
246 if (!ctx || !ctx->issuer_cert) {
247 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
250 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
253 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
254 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
255 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
259 num = sk_GENERAL_NAME_num(ialt);
260 if (!sk_GENERAL_NAME_reserve(gens, num)) {
261 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
265 for (i = 0; i < num; i++) {
266 gen = sk_GENERAL_NAME_value(ialt, i);
267 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
269 sk_GENERAL_NAME_free(ialt);
278 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
280 STACK_OF(CONF_VALUE) *nval)
284 const int num = sk_CONF_VALUE_num(nval);
287 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
289 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
290 sk_GENERAL_NAME_free(gens);
294 for (i = 0; i < num; i++) {
295 cnf = sk_CONF_VALUE_value(nval, i);
296 if (!name_cmp(cnf->name, "email")
297 && cnf->value && strcmp(cnf->value, "copy") == 0) {
298 if (!copy_email(ctx, gens, 0))
300 } else if (!name_cmp(cnf->name, "email")
301 && cnf->value && strcmp(cnf->value, "move") == 0) {
302 if (!copy_email(ctx, gens, 1))
306 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
308 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
313 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
318 * Copy any email addresses in a certificate or request to GENERAL_NAMES
321 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
324 ASN1_IA5STRING *email = NULL;
326 GENERAL_NAME *gen = NULL;
329 if (ctx != NULL && ctx->flags == CTX_TEST)
332 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
333 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
336 /* Find the subject name */
337 if (ctx->subject_cert)
338 nm = X509_get_subject_name(ctx->subject_cert);
340 nm = X509_REQ_get_subject_name(ctx->subject_req);
342 /* Now add any email address(es) to STACK */
343 while ((i = X509_NAME_get_index_by_NID(nm,
344 NID_pkcs9_emailAddress, i)) >= 0) {
345 ne = X509_NAME_get_entry(nm, i);
346 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
348 X509_NAME_delete_entry(nm, i);
349 X509_NAME_ENTRY_free(ne);
352 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
353 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
358 gen->type = GEN_EMAIL;
359 if (!sk_GENERAL_NAME_push(gens, gen)) {
360 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
369 GENERAL_NAME_free(gen);
370 ASN1_IA5STRING_free(email);
375 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
376 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
381 const int num = sk_CONF_VALUE_num(nval);
384 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
386 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
387 sk_GENERAL_NAME_free(gens);
391 for (i = 0; i < num; i++) {
392 cnf = sk_CONF_VALUE_value(nval, i);
393 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
395 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
399 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
403 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
404 X509V3_CTX *ctx, CONF_VALUE *cnf)
406 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
409 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
410 const X509V3_EXT_METHOD *method,
411 X509V3_CTX *ctx, int gen_type, const char *value,
415 GENERAL_NAME *gen = NULL;
418 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
425 gen = GENERAL_NAME_new();
427 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
442 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
443 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
444 ERR_add_error_data(2, "value=", value);
453 gen->d.ip = a2i_IPADDRESS_NC(value);
455 gen->d.ip = a2i_IPADDRESS(value);
456 if (gen->d.ip == NULL) {
457 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
458 ERR_add_error_data(2, "value=", value);
464 if (!do_dirname(gen, value, ctx)) {
465 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
471 if (!do_othername(gen, value, ctx)) {
472 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
477 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
482 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
483 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
485 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
490 gen->type = gen_type;
496 GENERAL_NAME_free(gen);
500 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
501 const X509V3_EXT_METHOD *method,
502 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
512 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
516 if (!name_cmp(name, "email"))
518 else if (!name_cmp(name, "URI"))
520 else if (!name_cmp(name, "DNS"))
522 else if (!name_cmp(name, "RID"))
524 else if (!name_cmp(name, "IP"))
526 else if (!name_cmp(name, "dirName"))
528 else if (!name_cmp(name, "otherName"))
529 type = GEN_OTHERNAME;
531 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
532 ERR_add_error_data(2, "name=", name);
536 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
540 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
542 char *objtmp = NULL, *p;
545 if ((p = strchr(value, ';')) == NULL)
547 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
550 * Free this up because we will overwrite it. no need to free type_id
551 * because it is static
553 ASN1_TYPE_free(gen->d.otherName->value);
554 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
557 objtmp = OPENSSL_strndup(value, objlen);
560 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
561 OPENSSL_free(objtmp);
562 if (!gen->d.otherName->type_id)
567 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
570 STACK_OF(CONF_VALUE) *sk = NULL;
573 if ((nm = X509_NAME_new()) == NULL)
575 sk = X509V3_get_section(ctx, value);
577 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
578 ERR_add_error_data(2, "section=", value);
581 /* FIXME: should allow other character types... */
582 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
590 X509V3_section_free(ctx, sk);