2 * Copyright 1999-2020 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)
86 char oline[256], *tmp;
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 (OBJ_obj2txt(oline, sizeof(oline), gen->d.otherName->type_id, 0) > 0)
128 BIO_snprintf(othername, sizeof(othername), "othername: %s:",
131 strncpy(othername, "othername:", sizeof(othername));
133 /* check if the value is something printable */
134 if (gen->d.otherName->value->type == V_ASN1_IA5STRING) {
135 if (X509V3_add_value_uchar(othername,
136 gen->d.otherName->value->value.ia5string->data,
140 if (gen->d.otherName->value->type == V_ASN1_UTF8STRING) {
141 if (X509V3_add_value_uchar(othername,
142 gen->d.otherName->value->value.utf8string->data,
146 if (!X509V3_add_value(othername, "<unsupported>", &ret))
153 if (!X509V3_add_value("X400Name", "<unsupported>", &ret))
158 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret))
163 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret))
168 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret))
173 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret))
178 if (X509_NAME_oneline(gen->d.dirn, oline, sizeof(oline)) == NULL
179 || !X509V3_add_value("DirName", oline, &ret))
184 tmp = ipaddr_to_asc(gen->d.ip->data, gen->d.ip->length);
185 if (tmp == NULL || !X509V3_add_value("IP Address", tmp, &ret))
191 i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
192 if (!X509V3_add_value("Registered ID", oline, &ret))
199 int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
206 nid = OBJ_obj2nid(gen->d.otherName->type_id);
207 /* Validate the types are as we expect before we use them */
208 if ((nid == NID_SRVName
209 && gen->d.otherName->value->type != V_ASN1_IA5STRING)
210 || (nid != NID_SRVName
211 && gen->d.otherName->value->type != V_ASN1_UTF8STRING)) {
212 BIO_printf(out, "othername:<unsupported>");
217 case NID_id_on_SmtpUTF8Mailbox:
218 BIO_printf(out, "othername:SmtpUTF8Mailbox:%s",
219 gen->d.otherName->value->value.utf8string->data);
222 BIO_printf(out, "othername:XmppAddr:%s",
223 gen->d.otherName->value->value.utf8string->data);
226 BIO_printf(out, "othername:SRVName:%s",
227 gen->d.otherName->value->value.ia5string->data);
230 BIO_printf(out, "othername:UPN:%s",
231 gen->d.otherName->value->value.utf8string->data);
234 BIO_printf(out, "othername:NAIRealm:%s",
235 gen->d.otherName->value->value.utf8string->data);
238 BIO_printf(out, "othername:<unsupported>");
244 BIO_printf(out, "X400Name:<unsupported>");
248 /* Maybe fix this: it is supported now */
249 BIO_printf(out, "EdiPartyName:<unsupported>");
253 BIO_printf(out, "email:");
254 ASN1_STRING_print(out, gen->d.ia5);
258 BIO_printf(out, "DNS:");
259 ASN1_STRING_print(out, gen->d.ia5);
263 BIO_printf(out, "URI:");
264 ASN1_STRING_print(out, gen->d.ia5);
268 BIO_printf(out, "DirName:");
269 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
273 tmp = ipaddr_to_asc(gen->d.ip->data, gen->d.ip->length);
276 BIO_printf(out, "IP Address:%s", tmp);
281 BIO_printf(out, "Registered ID:");
282 i2a_ASN1_OBJECT(out, gen->d.rid);
288 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
290 STACK_OF(CONF_VALUE) *nval)
292 const int num = sk_CONF_VALUE_num(nval);
293 GENERAL_NAMES *gens = sk_GENERAL_NAME_new_reserve(NULL, num);
297 X509V3err(X509V3_F_V2I_ISSUER_ALT, ERR_R_MALLOC_FAILURE);
298 sk_GENERAL_NAME_free(gens);
301 for (i = 0; i < num; i++) {
302 CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
304 if (!v3_name_cmp(cnf->name, "issuer")
305 && cnf->value && strcmp(cnf->value, "copy") == 0) {
306 if (!copy_issuer(ctx, gens))
309 GENERAL_NAME *gen = v2i_GENERAL_NAME(method, ctx, cnf);
313 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
318 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
322 /* Append subject altname of issuer to issuer alt name of subject */
324 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
331 if (ctx && (ctx->flags == CTX_TEST))
333 if (!ctx || !ctx->issuer_cert) {
334 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_NO_ISSUER_DETAILS);
337 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
340 if ((ext = X509_get_ext(ctx->issuer_cert, i)) == NULL
341 || (ialt = X509V3_EXT_d2i(ext)) == NULL) {
342 X509V3err(X509V3_F_COPY_ISSUER, X509V3_R_ISSUER_DECODE_ERROR);
346 num = sk_GENERAL_NAME_num(ialt);
347 if (!sk_GENERAL_NAME_reserve(gens, num)) {
348 X509V3err(X509V3_F_COPY_ISSUER, ERR_R_MALLOC_FAILURE);
352 for (i = 0; i < num; i++) {
353 gen = sk_GENERAL_NAME_value(ialt, i);
354 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
356 sk_GENERAL_NAME_free(ialt);
365 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
367 STACK_OF(CONF_VALUE) *nval)
371 const int num = sk_CONF_VALUE_num(nval);
374 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
376 X509V3err(X509V3_F_V2I_SUBJECT_ALT, ERR_R_MALLOC_FAILURE);
377 sk_GENERAL_NAME_free(gens);
381 for (i = 0; i < num; i++) {
382 cnf = sk_CONF_VALUE_value(nval, i);
383 if (!v3_name_cmp(cnf->name, "email")
384 && cnf->value && strcmp(cnf->value, "copy") == 0) {
385 if (!copy_email(ctx, gens, 0))
387 } else if (!v3_name_cmp(cnf->name, "email")
388 && cnf->value && strcmp(cnf->value, "move") == 0) {
389 if (!copy_email(ctx, gens, 1))
393 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
395 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
400 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
405 * Copy any email addresses in a certificate or request to GENERAL_NAMES
408 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
411 ASN1_IA5STRING *email = NULL;
413 GENERAL_NAME *gen = NULL;
416 if (ctx != NULL && ctx->flags == CTX_TEST)
419 || (ctx->subject_cert == NULL && ctx->subject_req == NULL)) {
420 X509V3err(X509V3_F_COPY_EMAIL, X509V3_R_NO_SUBJECT_DETAILS);
423 /* Find the subject name */
424 if (ctx->subject_cert)
425 nm = X509_get_subject_name(ctx->subject_cert);
427 nm = X509_REQ_get_subject_name(ctx->subject_req);
429 /* Now add any email address(es) to STACK */
430 while ((i = X509_NAME_get_index_by_NID(nm,
431 NID_pkcs9_emailAddress, i)) >= 0) {
432 ne = X509_NAME_get_entry(nm, i);
433 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne));
435 X509_NAME_delete_entry(nm, i);
436 X509_NAME_ENTRY_free(ne);
439 if (email == NULL || (gen = GENERAL_NAME_new()) == NULL) {
440 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
445 gen->type = GEN_EMAIL;
446 if (!sk_GENERAL_NAME_push(gens, gen)) {
447 X509V3err(X509V3_F_COPY_EMAIL, ERR_R_MALLOC_FAILURE);
456 GENERAL_NAME_free(gen);
457 ASN1_IA5STRING_free(email);
462 GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method,
463 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
468 const int num = sk_CONF_VALUE_num(nval);
471 gens = sk_GENERAL_NAME_new_reserve(NULL, num);
473 X509V3err(X509V3_F_V2I_GENERAL_NAMES, ERR_R_MALLOC_FAILURE);
474 sk_GENERAL_NAME_free(gens);
478 for (i = 0; i < num; i++) {
479 cnf = sk_CONF_VALUE_value(nval, i);
480 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL)
482 sk_GENERAL_NAME_push(gens, gen); /* no failure as it was reserved */
486 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
490 GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method,
491 X509V3_CTX *ctx, CONF_VALUE *cnf)
493 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
496 GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out,
497 const X509V3_EXT_METHOD *method,
498 X509V3_CTX *ctx, int gen_type, const char *value,
502 GENERAL_NAME *gen = NULL;
505 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_MISSING_VALUE);
512 gen = GENERAL_NAME_new();
514 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
529 if ((obj = OBJ_txt2obj(value, 0)) == NULL) {
530 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_OBJECT);
531 ERR_add_error_data(2, "value=", value);
540 gen->d.ip = a2i_IPADDRESS_NC(value);
542 gen->d.ip = a2i_IPADDRESS(value);
543 if (gen->d.ip == NULL) {
544 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_BAD_IP_ADDRESS);
545 ERR_add_error_data(2, "value=", value);
551 if (!do_dirname(gen, value, ctx)) {
552 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_DIRNAME_ERROR);
558 if (!do_othername(gen, value, ctx)) {
559 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_OTHERNAME_ERROR);
564 X509V3err(X509V3_F_A2I_GENERAL_NAME, X509V3_R_UNSUPPORTED_TYPE);
569 if ((gen->d.ia5 = ASN1_IA5STRING_new()) == NULL ||
570 !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value,
572 X509V3err(X509V3_F_A2I_GENERAL_NAME, ERR_R_MALLOC_FAILURE);
577 gen->type = gen_type;
583 GENERAL_NAME_free(gen);
587 GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
588 const X509V3_EXT_METHOD *method,
589 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc)
599 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_MISSING_VALUE);
603 if (!v3_name_cmp(name, "email"))
605 else if (!v3_name_cmp(name, "URI"))
607 else if (!v3_name_cmp(name, "DNS"))
609 else if (!v3_name_cmp(name, "RID"))
611 else if (!v3_name_cmp(name, "IP"))
613 else if (!v3_name_cmp(name, "dirName"))
615 else if (!v3_name_cmp(name, "otherName"))
616 type = GEN_OTHERNAME;
618 X509V3err(X509V3_F_V2I_GENERAL_NAME_EX, X509V3_R_UNSUPPORTED_OPTION);
619 ERR_add_error_data(2, "name=", name);
623 return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc);
627 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
629 char *objtmp = NULL, *p;
632 if ((p = strchr(value, ';')) == NULL)
634 if ((gen->d.otherName = OTHERNAME_new()) == NULL)
637 * Free this up because we will overwrite it. no need to free type_id
638 * because it is static
640 ASN1_TYPE_free(gen->d.otherName->value);
641 if ((gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)) == NULL)
644 objtmp = OPENSSL_strndup(value, objlen);
647 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
648 OPENSSL_free(objtmp);
649 if (!gen->d.otherName->type_id)
654 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx)
657 STACK_OF(CONF_VALUE) *sk = NULL;
660 if ((nm = X509_NAME_new()) == NULL)
662 sk = X509V3_get_section(ctx, value);
664 X509V3err(X509V3_F_DO_DIRNAME, X509V3_R_SECTION_NOT_FOUND);
665 ERR_add_error_data(2, "section=", value);
668 /* FIXME: should allow other character types... */
669 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
677 X509V3_section_free(ctx, sk);