2 * ! \file ssl/ssl_cert.c
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
122 #ifndef NO_SYS_TYPES_H
123 # include <sys/types.h>
127 #include <openssl/objects.h>
128 #include <openssl/bio.h>
129 #include <openssl/pem.h>
130 #include <openssl/x509v3.h>
131 #ifndef OPENSSL_NO_DH
132 # include <openssl/dh.h>
134 #include <openssl/bn.h>
135 #include "ssl_locl.h"
137 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
139 static volatile int ssl_x509_store_ctx_idx
= -1;
140 int got_write_lock
= 0;
142 if (((size_t)&ssl_x509_store_ctx_idx
&
143 (sizeof(ssl_x509_store_ctx_idx
) - 1))
144 == 0) { /* check alignment, practically always true */
147 if ((ret
= ssl_x509_store_ctx_idx
) < 0) {
148 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
149 if ((ret
= ssl_x509_store_ctx_idx
) < 0) {
150 ret
= ssl_x509_store_ctx_idx
=
151 X509_STORE_CTX_get_ex_new_index(0,
152 "SSL for verify callback",
155 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
159 } else { /* commonly eliminated */
161 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
163 if (ssl_x509_store_ctx_idx
< 0) {
164 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
165 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
168 if (ssl_x509_store_ctx_idx
< 0) {
169 ssl_x509_store_ctx_idx
=
170 X509_STORE_CTX_get_ex_new_index(0,
171 "SSL for verify callback",
177 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
179 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
181 return ssl_x509_store_ctx_idx
;
185 void ssl_cert_set_default_md(CERT
*cert
)
187 /* Set digest values to defaults */
188 #ifndef OPENSSL_NO_DSA
189 cert
->pkeys
[SSL_PKEY_DSA_SIGN
].digest
= EVP_sha1();
191 #ifndef OPENSSL_NO_RSA
192 cert
->pkeys
[SSL_PKEY_RSA_SIGN
].digest
= EVP_sha1();
193 cert
->pkeys
[SSL_PKEY_RSA_ENC
].digest
= EVP_sha1();
195 #ifndef OPENSSL_NO_ECDSA
196 cert
->pkeys
[SSL_PKEY_ECC
].digest
= EVP_sha1();
200 CERT
*ssl_cert_new(void)
204 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
206 SSLerr(SSL_F_SSL_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
209 memset(ret
, 0, sizeof(CERT
));
211 ret
->key
= &(ret
->pkeys
[SSL_PKEY_RSA_ENC
]);
213 ssl_cert_set_default_md(ret
);
217 CERT
*ssl_cert_dup(CERT
*cert
)
222 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
224 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
228 memset(ret
, 0, sizeof(CERT
));
231 ret
->key
= &ret
->pkeys
[cert
->key
- &cert
->pkeys
[0]];
233 * or ret->key = ret->pkeys + (cert->key - cert->pkeys), if you find that
237 ret
->valid
= cert
->valid
;
238 ret
->mask_k
= cert
->mask_k
;
239 ret
->mask_a
= cert
->mask_a
;
240 ret
->export_mask_k
= cert
->export_mask_k
;
241 ret
->export_mask_a
= cert
->export_mask_a
;
243 #ifndef OPENSSL_NO_RSA
244 if (cert
->rsa_tmp
!= NULL
) {
245 RSA_up_ref(cert
->rsa_tmp
);
246 ret
->rsa_tmp
= cert
->rsa_tmp
;
248 ret
->rsa_tmp_cb
= cert
->rsa_tmp_cb
;
251 #ifndef OPENSSL_NO_DH
252 if (cert
->dh_tmp
!= NULL
) {
253 ret
->dh_tmp
= DHparams_dup(cert
->dh_tmp
);
254 if (ret
->dh_tmp
== NULL
) {
255 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_DH_LIB
);
258 if (cert
->dh_tmp
->priv_key
) {
259 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->priv_key
);
261 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
264 ret
->dh_tmp
->priv_key
= b
;
266 if (cert
->dh_tmp
->pub_key
) {
267 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->pub_key
);
269 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
272 ret
->dh_tmp
->pub_key
= b
;
275 ret
->dh_tmp_cb
= cert
->dh_tmp_cb
;
278 #ifndef OPENSSL_NO_ECDH
279 if (cert
->ecdh_tmp
) {
280 ret
->ecdh_tmp
= EC_KEY_dup(cert
->ecdh_tmp
);
281 if (ret
->ecdh_tmp
== NULL
) {
282 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_EC_LIB
);
286 ret
->ecdh_tmp_cb
= cert
->ecdh_tmp_cb
;
287 ret
->ecdh_tmp_auto
= cert
->ecdh_tmp_auto
;
290 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
291 CERT_PKEY
*cpk
= cert
->pkeys
+ i
;
292 CERT_PKEY
*rpk
= ret
->pkeys
+ i
;
293 if (cpk
->x509
!= NULL
) {
294 rpk
->x509
= cpk
->x509
;
295 CRYPTO_add(&rpk
->x509
->references
, 1, CRYPTO_LOCK_X509
);
298 if (cpk
->privatekey
!= NULL
) {
299 rpk
->privatekey
= cpk
->privatekey
;
300 CRYPTO_add(&cpk
->privatekey
->references
, 1, CRYPTO_LOCK_EVP_PKEY
);
304 rpk
->chain
= X509_chain_up_ref(cpk
->chain
);
306 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
310 rpk
->valid_flags
= 0;
311 #ifndef OPENSSL_NO_TLSEXT
312 if (cert
->pkeys
[i
].serverinfo
!= NULL
) {
313 /* Just copy everything. */
314 ret
->pkeys
[i
].serverinfo
=
315 OPENSSL_malloc(cert
->pkeys
[i
].serverinfo_length
);
316 if (ret
->pkeys
[i
].serverinfo
== NULL
) {
317 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
320 ret
->pkeys
[i
].serverinfo_length
=
321 cert
->pkeys
[i
].serverinfo_length
;
322 memcpy(ret
->pkeys
[i
].serverinfo
,
323 cert
->pkeys
[i
].serverinfo
,
324 cert
->pkeys
[i
].serverinfo_length
);
330 * Set digests to defaults. NB: we don't copy existing values as they
331 * will be set during handshake.
333 ssl_cert_set_default_md(ret
);
334 /* Peer sigalgs set to NULL as we get these from handshake too */
335 ret
->peer_sigalgs
= NULL
;
336 ret
->peer_sigalgslen
= 0;
337 /* Configured sigalgs however we copy across */
339 if (cert
->conf_sigalgs
) {
340 ret
->conf_sigalgs
= OPENSSL_malloc(cert
->conf_sigalgslen
);
341 if (!ret
->conf_sigalgs
)
343 memcpy(ret
->conf_sigalgs
, cert
->conf_sigalgs
, cert
->conf_sigalgslen
);
344 ret
->conf_sigalgslen
= cert
->conf_sigalgslen
;
346 ret
->conf_sigalgs
= NULL
;
348 if (cert
->client_sigalgs
) {
349 ret
->client_sigalgs
= OPENSSL_malloc(cert
->client_sigalgslen
);
350 if (!ret
->client_sigalgs
)
352 memcpy(ret
->client_sigalgs
, cert
->client_sigalgs
,
353 cert
->client_sigalgslen
);
354 ret
->client_sigalgslen
= cert
->client_sigalgslen
;
356 ret
->client_sigalgs
= NULL
;
357 /* Shared sigalgs also NULL */
358 ret
->shared_sigalgs
= NULL
;
359 /* Copy any custom client certificate types */
361 ret
->ctypes
= OPENSSL_malloc(cert
->ctype_num
);
364 memcpy(ret
->ctypes
, cert
->ctypes
, cert
->ctype_num
);
365 ret
->ctype_num
= cert
->ctype_num
;
368 ret
->cert_flags
= cert
->cert_flags
;
370 ret
->cert_cb
= cert
->cert_cb
;
371 ret
->cert_cb_arg
= cert
->cert_cb_arg
;
373 if (cert
->verify_store
) {
374 CRYPTO_add(&cert
->verify_store
->references
, 1,
375 CRYPTO_LOCK_X509_STORE
);
376 ret
->verify_store
= cert
->verify_store
;
379 if (cert
->chain_store
) {
380 CRYPTO_add(&cert
->chain_store
->references
, 1, CRYPTO_LOCK_X509_STORE
);
381 ret
->chain_store
= cert
->chain_store
;
384 ret
->ciphers_raw
= NULL
;
386 #ifndef OPENSSL_NO_TLSEXT
387 if (!custom_exts_copy(&ret
->cli_ext
, &cert
->cli_ext
))
389 if (!custom_exts_copy(&ret
->srv_ext
, &cert
->srv_ext
))
396 #ifndef OPENSSL_NO_RSA
397 if (ret
->rsa_tmp
!= NULL
)
398 RSA_free(ret
->rsa_tmp
);
400 #ifndef OPENSSL_NO_DH
401 if (ret
->dh_tmp
!= NULL
)
402 DH_free(ret
->dh_tmp
);
404 #ifndef OPENSSL_NO_ECDH
405 if (ret
->ecdh_tmp
!= NULL
)
406 EC_KEY_free(ret
->ecdh_tmp
);
409 #ifndef OPENSSL_NO_TLSEXT
410 custom_exts_free(&ret
->cli_ext
);
411 custom_exts_free(&ret
->srv_ext
);
414 ssl_cert_clear_certs(ret
);
420 /* Free up and clear all certificates and chains */
422 void ssl_cert_clear_certs(CERT
*c
)
427 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
428 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
430 X509_free(cpk
->x509
);
433 if (cpk
->privatekey
) {
434 EVP_PKEY_free(cpk
->privatekey
);
435 cpk
->privatekey
= NULL
;
438 sk_X509_pop_free(cpk
->chain
, X509_free
);
441 #ifndef OPENSSL_NO_TLSEXT
442 if (cpk
->serverinfo
) {
443 OPENSSL_free(cpk
->serverinfo
);
444 cpk
->serverinfo
= NULL
;
445 cpk
->serverinfo_length
= 0;
448 /* Clear all flags apart from explicit sign */
449 cpk
->valid_flags
&= CERT_PKEY_EXPLICIT_SIGN
;
453 void ssl_cert_free(CERT
*c
)
460 i
= CRYPTO_add(&c
->references
, -1, CRYPTO_LOCK_SSL_CERT
);
462 REF_PRINT("CERT", c
);
468 fprintf(stderr
, "ssl_cert_free, bad reference count\n");
473 #ifndef OPENSSL_NO_RSA
475 RSA_free(c
->rsa_tmp
);
477 #ifndef OPENSSL_NO_DH
481 #ifndef OPENSSL_NO_ECDH
483 EC_KEY_free(c
->ecdh_tmp
);
486 ssl_cert_clear_certs(c
);
488 OPENSSL_free(c
->peer_sigalgs
);
490 OPENSSL_free(c
->conf_sigalgs
);
491 if (c
->client_sigalgs
)
492 OPENSSL_free(c
->client_sigalgs
);
493 if (c
->shared_sigalgs
)
494 OPENSSL_free(c
->shared_sigalgs
);
496 OPENSSL_free(c
->ctypes
);
498 X509_STORE_free(c
->verify_store
);
500 X509_STORE_free(c
->chain_store
);
502 OPENSSL_free(c
->ciphers_raw
);
503 #ifndef OPENSSL_NO_TLSEXT
504 custom_exts_free(&c
->cli_ext
);
505 custom_exts_free(&c
->srv_ext
);
506 if (c
->alpn_proposed
)
507 OPENSSL_free(c
->alpn_proposed
);
512 int ssl_cert_inst(CERT
**o
)
515 * Create a CERT if there isn't already one (which cannot really happen,
516 * as it is initially created in SSL_CTX_new; but the earlier code
517 * usually allows for that one being non-existant, so we follow that
518 * behaviour, as it might turn out that there actually is a reason for it
519 * -- but I'm not sure that *all* of the existing code could cope with
520 * s->cert being NULL, otherwise we could do without the initialization
525 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
529 if ((*o
= ssl_cert_new()) == NULL
) {
530 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
537 int ssl_cert_set0_chain(CERT
*c
, STACK_OF(X509
) *chain
)
539 CERT_PKEY
*cpk
= c
->key
;
543 sk_X509_pop_free(cpk
->chain
, X509_free
);
548 int ssl_cert_set1_chain(CERT
*c
, STACK_OF(X509
) *chain
)
550 STACK_OF(X509
) *dchain
;
552 return ssl_cert_set0_chain(c
, NULL
);
553 dchain
= X509_chain_up_ref(chain
);
556 if (!ssl_cert_set0_chain(c
, dchain
)) {
557 sk_X509_pop_free(dchain
, X509_free
);
563 int ssl_cert_add0_chain_cert(CERT
*c
, X509
*x
)
565 CERT_PKEY
*cpk
= c
->key
;
569 cpk
->chain
= sk_X509_new_null();
570 if (!cpk
->chain
|| !sk_X509_push(cpk
->chain
, x
))
575 int ssl_cert_add1_chain_cert(CERT
*c
, X509
*x
)
577 if (!ssl_cert_add0_chain_cert(c
, x
))
579 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
583 int ssl_cert_select_current(CERT
*c
, X509
*x
)
588 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
589 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
590 if (cpk
->x509
== x
&& cpk
->privatekey
) {
596 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
597 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
598 if (cpk
->privatekey
&& cpk
->x509
&& !X509_cmp(cpk
->x509
, x
)) {
606 int ssl_cert_set_current(CERT
*c
, long op
)
611 if (op
== SSL_CERT_SET_FIRST
)
613 else if (op
== SSL_CERT_SET_NEXT
) {
614 idx
= (int)(c
->key
- c
->pkeys
+ 1);
615 if (idx
>= SSL_PKEY_NUM
)
619 for (i
= idx
; i
< SSL_PKEY_NUM
; i
++) {
620 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
621 if (cpk
->x509
&& cpk
->privatekey
) {
629 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
632 c
->cert_cb_arg
= arg
;
635 SESS_CERT
*ssl_sess_cert_new(void)
639 ret
= OPENSSL_malloc(sizeof(*ret
));
641 SSLerr(SSL_F_SSL_SESS_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
645 memset(ret
, 0, sizeof(*ret
));
646 ret
->peer_key
= &(ret
->peer_pkeys
[SSL_PKEY_RSA_ENC
]);
652 void ssl_sess_cert_free(SESS_CERT
*sc
)
659 i
= CRYPTO_add(&sc
->references
, -1, CRYPTO_LOCK_SSL_SESS_CERT
);
661 REF_PRINT("SESS_CERT", sc
);
667 fprintf(stderr
, "ssl_sess_cert_free, bad reference count\n");
673 if (sc
->cert_chain
!= NULL
)
674 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
675 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
676 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
677 X509_free(sc
->peer_pkeys
[i
].x509
);
678 #if 0 /* We don't have the peer's private key.
679 * These lines are just * here as a reminder
680 * that we're still using a
681 * not-quite-appropriate * data structure. */
682 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
683 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
687 #ifndef OPENSSL_NO_RSA
688 if (sc
->peer_rsa_tmp
!= NULL
)
689 RSA_free(sc
->peer_rsa_tmp
);
691 #ifndef OPENSSL_NO_DH
692 if (sc
->peer_dh_tmp
!= NULL
)
693 DH_free(sc
->peer_dh_tmp
);
695 #ifndef OPENSSL_NO_ECDH
696 if (sc
->peer_ecdh_tmp
!= NULL
)
697 EC_KEY_free(sc
->peer_ecdh_tmp
);
703 int ssl_set_peer_cert_type(SESS_CERT
*sc
, int type
)
705 sc
->peer_cert_type
= type
;
709 int ssl_verify_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
)
713 X509_STORE
*verify_store
;
716 if (s
->cert
->verify_store
)
717 verify_store
= s
->cert
->verify_store
;
719 verify_store
= s
->ctx
->cert_store
;
721 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
724 x
= sk_X509_value(sk
, 0);
725 if (!X509_STORE_CTX_init(&ctx
, verify_store
, x
, sk
)) {
726 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, ERR_R_X509_LIB
);
729 /* Set suite B flags if needed */
730 X509_STORE_CTX_set_flags(&ctx
, tls1_suiteb(s
));
732 if (SSL_get_verify_depth(s
) >= 0)
733 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
735 X509_STORE_CTX_set_ex_data(&ctx
, SSL_get_ex_data_X509_STORE_CTX_idx(), s
);
738 * We need to inherit the verify parameters. These can be determined by
739 * the context: if its a server it will verify SSL client certificates or
743 X509_STORE_CTX_set_default(&ctx
, s
->server
? "ssl_client" : "ssl_server");
745 * Anything non-default in "param" should overwrite anything in the ctx.
747 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx
), s
->param
);
749 if (s
->verify_callback
)
750 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
752 if (s
->ctx
->app_verify_callback
!= NULL
)
753 #if 1 /* new with OpenSSL 0.9.7 */
754 i
= s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
756 i
= s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
759 #ifndef OPENSSL_NO_X509_VERIFY
760 i
= X509_verify_cert(&ctx
);
763 ctx
.error
= X509_V_ERR_APPLICATION_VERIFICATION
;
764 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, SSL_R_NO_VERIFY_CALLBACK
);
768 s
->verify_result
= ctx
.error
;
769 X509_STORE_CTX_cleanup(&ctx
);
774 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,
775 STACK_OF(X509_NAME
) *name_list
)
777 if (*ca_list
!= NULL
)
778 sk_X509_NAME_pop_free(*ca_list
, X509_NAME_free
);
780 *ca_list
= name_list
;
783 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
786 STACK_OF(X509_NAME
) *ret
;
789 ret
= sk_X509_NAME_new_null();
790 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
791 name
= X509_NAME_dup(sk_X509_NAME_value(sk
, i
));
792 if ((name
== NULL
) || !sk_X509_NAME_push(ret
, name
)) {
793 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
800 void SSL_set_client_CA_list(SSL
*s
, STACK_OF(X509_NAME
) *name_list
)
802 set_client_CA_list(&(s
->client_CA
), name_list
);
805 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
, STACK_OF(X509_NAME
) *name_list
)
807 set_client_CA_list(&(ctx
->client_CA
), name_list
);
810 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
812 return (ctx
->client_CA
);
815 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
817 if (s
->type
== SSL_ST_CONNECT
) { /* we are in the client */
818 if (((s
->version
>> 8) == SSL3_VERSION_MAJOR
) && (s
->s3
!= NULL
))
819 return (s
->s3
->tmp
.ca_names
);
823 if (s
->client_CA
!= NULL
)
824 return (s
->client_CA
);
826 return (s
->ctx
->client_CA
);
830 static int add_client_CA(STACK_OF(X509_NAME
) **sk
, X509
*x
)
836 if ((*sk
== NULL
) && ((*sk
= sk_X509_NAME_new_null()) == NULL
))
839 if ((name
= X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
842 if (!sk_X509_NAME_push(*sk
, name
)) {
843 X509_NAME_free(name
);
849 int SSL_add_client_CA(SSL
*ssl
, X509
*x
)
851 return (add_client_CA(&(ssl
->client_CA
), x
));
854 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
, X509
*x
)
856 return (add_client_CA(&(ctx
->client_CA
), x
));
859 static int xname_cmp(const X509_NAME
*const *a
, const X509_NAME
*const *b
)
861 return (X509_NAME_cmp(*a
, *b
));
864 #ifndef OPENSSL_NO_STDIO
866 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
867 * it doesn't really have anything to do with clients (except that a common use
868 * for a stack of CAs is to send it to the client). Actually, it doesn't have
869 * much to do with CAs, either, since it will load any old cert.
870 * \param file the file containing one or more certs.
871 * \return a ::STACK containing the certs.
873 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
877 X509_NAME
*xn
= NULL
;
878 STACK_OF(X509_NAME
) *ret
= NULL
, *sk
;
880 sk
= sk_X509_NAME_new(xname_cmp
);
882 in
= BIO_new(BIO_s_file_internal());
884 if ((sk
== NULL
) || (in
== NULL
)) {
885 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
889 if (!BIO_read_filename(in
, file
))
893 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
896 ret
= sk_X509_NAME_new_null();
898 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
902 if ((xn
= X509_get_subject_name(x
)) == NULL
)
904 /* check for duplicates */
905 xn
= X509_NAME_dup(xn
);
908 if (sk_X509_NAME_find(sk
, xn
) >= 0)
911 sk_X509_NAME_push(sk
, xn
);
912 sk_X509_NAME_push(ret
, xn
);
919 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
923 sk_X509_NAME_free(sk
);
935 * Add a file of certs to a stack.
936 * \param stack the stack to add to.
937 * \param file the file to add from. All certs in this file that are not
938 * already in the stack will be added.
939 * \return 1 for success, 0 for failure. Note that in the case of failure some
940 * certs may have been added to \c stack.
943 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
948 X509_NAME
*xn
= NULL
;
950 int (*oldcmp
) (const X509_NAME
*const *a
, const X509_NAME
*const *b
);
952 oldcmp
= sk_X509_NAME_set_cmp_func(stack
, xname_cmp
);
954 in
= BIO_new(BIO_s_file_internal());
957 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,
958 ERR_R_MALLOC_FAILURE
);
962 if (!BIO_read_filename(in
, file
))
966 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
968 if ((xn
= X509_get_subject_name(x
)) == NULL
)
970 xn
= X509_NAME_dup(xn
);
973 if (sk_X509_NAME_find(stack
, xn
) >= 0)
976 sk_X509_NAME_push(stack
, xn
);
990 (void)sk_X509_NAME_set_cmp_func(stack
, oldcmp
);
996 * Add a directory of certs to a stack.
997 * \param stack the stack to append to.
998 * \param dir the directory to append from. All files in this directory will be
999 * examined as potential certs. Any that are acceptable to
1000 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
1002 * \return 1 for success, 0 for failure. Note that in the case of failure some
1003 * certs may have been added to \c stack.
1006 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
1009 OPENSSL_DIR_CTX
*d
= NULL
;
1010 const char *filename
;
1013 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
1015 /* Note that a side effect is that the CAs will be sorted by name */
1017 while ((filename
= OPENSSL_DIR_read(&d
, dir
))) {
1021 if (strlen(dir
) + strlen(filename
) + 2 > sizeof(buf
)) {
1022 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,
1023 SSL_R_PATH_TOO_LONG
);
1026 #ifdef OPENSSL_SYS_VMS
1027 r
= BIO_snprintf(buf
, sizeof(buf
), "%s%s", dir
, filename
);
1029 r
= BIO_snprintf(buf
, sizeof(buf
), "%s/%s", dir
, filename
);
1031 if (r
<= 0 || r
>= (int)sizeof(buf
))
1033 if (!SSL_add_file_cert_subjects_to_stack(stack
, buf
))
1038 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
1039 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
1040 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
1048 OPENSSL_DIR_end(&d
);
1049 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);
1053 /* Add a certificate to a BUF_MEM structure */
1055 static int ssl_add_cert_to_buf(BUF_MEM
*buf
, unsigned long *l
, X509
*x
)
1060 n
= i2d_X509(x
, NULL
);
1061 if (n
< 0 || !BUF_MEM_grow_clean(buf
, (int)(n
+ (*l
) + 3))) {
1062 SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF
, ERR_R_BUF_LIB
);
1065 p
= (unsigned char *)&(buf
->data
[*l
]);
1067 n
= i2d_X509(x
, &p
);
1069 /* Shouldn't happen */
1070 SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF
, ERR_R_BUF_LIB
);
1078 /* Add certificate chain to internal SSL BUF_MEM strcuture */
1079 int ssl_add_cert_chain(SSL
*s
, CERT_PKEY
*cpk
, unsigned long *l
)
1081 BUF_MEM
*buf
= s
->init_buf
;
1086 STACK_OF(X509
) *extra_certs
;
1087 X509_STORE
*chain_store
;
1094 if (s
->cert
->chain_store
)
1095 chain_store
= s
->cert
->chain_store
;
1097 chain_store
= s
->ctx
->cert_store
;
1100 * If we have a certificate specific chain use it, else use parent ctx.
1102 if (cpk
&& cpk
->chain
)
1103 extra_certs
= cpk
->chain
;
1105 extra_certs
= s
->ctx
->extra_certs
;
1107 if ((s
->mode
& SSL_MODE_NO_AUTO_CHAIN
) || extra_certs
)
1112 /* TLSv1 sends a chain with nothing in it, instead of an alert */
1113 if (!BUF_MEM_grow_clean(buf
, 10)) {
1114 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
, ERR_R_BUF_LIB
);
1119 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1122 X509_STORE_CTX xs_ctx
;
1124 if (!X509_STORE_CTX_init(&xs_ctx
, chain_store
, x
, NULL
)) {
1125 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
, ERR_R_X509_LIB
);
1128 X509_verify_cert(&xs_ctx
);
1129 /* Don't leave errors in the queue */
1131 for (i
= 0; i
< sk_X509_num(xs_ctx
.chain
); i
++) {
1132 x
= sk_X509_value(xs_ctx
.chain
, i
);
1134 if (!ssl_add_cert_to_buf(buf
, l
, x
)) {
1135 X509_STORE_CTX_cleanup(&xs_ctx
);
1139 X509_STORE_CTX_cleanup(&xs_ctx
);
1142 for (i
= 0; i
< sk_X509_num(extra_certs
); i
++) {
1143 x
= sk_X509_value(extra_certs
, i
);
1144 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1151 /* Build a certificate chain for current certificate */
1152 int ssl_build_cert_chain(CERT
*c
, X509_STORE
*chain_store
, int flags
)
1154 CERT_PKEY
*cpk
= c
->key
;
1155 X509_STORE_CTX xs_ctx
;
1156 STACK_OF(X509
) *chain
= NULL
, *untrusted
= NULL
;
1159 unsigned long error
;
1162 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_NO_CERTIFICATE_SET
);
1165 /* Rearranging and check the chain: add everything to a store */
1166 if (flags
& SSL_BUILD_CHAIN_FLAG_CHECK
) {
1167 chain_store
= X509_STORE_new();
1170 for (i
= 0; i
< sk_X509_num(cpk
->chain
); i
++) {
1171 x
= sk_X509_value(cpk
->chain
, i
);
1172 if (!X509_STORE_add_cert(chain_store
, x
)) {
1173 error
= ERR_peek_last_error();
1174 if (ERR_GET_LIB(error
) != ERR_LIB_X509
||
1175 ERR_GET_REASON(error
) !=
1176 X509_R_CERT_ALREADY_IN_HASH_TABLE
)
1181 /* Add EE cert too: it might be self signed */
1182 if (!X509_STORE_add_cert(chain_store
, cpk
->x509
)) {
1183 error
= ERR_peek_last_error();
1184 if (ERR_GET_LIB(error
) != ERR_LIB_X509
||
1185 ERR_GET_REASON(error
) != X509_R_CERT_ALREADY_IN_HASH_TABLE
)
1191 chain_store
= c
->chain_store
;
1193 if (flags
& SSL_BUILD_CHAIN_FLAG_UNTRUSTED
)
1194 untrusted
= cpk
->chain
;
1197 if (!X509_STORE_CTX_init(&xs_ctx
, chain_store
, cpk
->x509
, untrusted
)) {
1198 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, ERR_R_X509_LIB
);
1201 /* Set suite B flags if needed */
1202 X509_STORE_CTX_set_flags(&xs_ctx
,
1203 c
->cert_flags
& SSL_CERT_FLAG_SUITEB_128_LOS
);
1205 i
= X509_verify_cert(&xs_ctx
);
1206 if (i
<= 0 && flags
& SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR
) {
1207 if (flags
& SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR
)
1213 chain
= X509_STORE_CTX_get1_chain(&xs_ctx
);
1215 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_CERTIFICATE_VERIFY_FAILED
);
1216 i
= X509_STORE_CTX_get_error(&xs_ctx
);
1217 ERR_add_error_data(2, "Verify error:",
1218 X509_verify_cert_error_string(i
));
1220 X509_STORE_CTX_cleanup(&xs_ctx
);
1223 X509_STORE_CTX_cleanup(&xs_ctx
);
1225 sk_X509_pop_free(cpk
->chain
, X509_free
);
1226 /* Remove EE certificate from chain */
1227 x
= sk_X509_shift(chain
);
1229 if (flags
& SSL_BUILD_CHAIN_FLAG_NO_ROOT
) {
1230 if (sk_X509_num(chain
) > 0) {
1231 /* See if last cert is self signed */
1232 x
= sk_X509_value(chain
, sk_X509_num(chain
) - 1);
1233 X509_check_purpose(x
, -1, 0);
1234 if (x
->ex_flags
& EXFLAG_SS
) {
1235 x
= sk_X509_pop(chain
);
1244 if (flags
& SSL_BUILD_CHAIN_FLAG_CHECK
)
1245 X509_STORE_free(chain_store
);
1250 int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
, int ref
)
1252 X509_STORE
**pstore
;
1254 pstore
= &c
->chain_store
;
1256 pstore
= &c
->verify_store
;
1258 X509_STORE_free(*pstore
);
1261 CRYPTO_add(&store
->references
, 1, CRYPTO_LOCK_X509_STORE
);