1 /*! \file ssl/ssl_cert.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
120 #ifndef NO_SYS_TYPES_H
121 # include <sys/types.h>
125 #include <openssl/objects.h>
126 #include <openssl/bio.h>
127 #include <openssl/pem.h>
128 #include <openssl/x509v3.h>
129 #ifndef OPENSSL_NO_DH
130 #include <openssl/dh.h>
132 #include <openssl/bn.h>
133 #include "ssl_locl.h"
135 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
137 static volatile int ssl_x509_store_ctx_idx
= -1;
138 int got_write_lock
= 0;
140 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
142 if (ssl_x509_store_ctx_idx
< 0)
144 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
145 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
148 if (ssl_x509_store_ctx_idx
< 0)
150 ssl_x509_store_ctx_idx
=X509_STORE_CTX_get_ex_new_index(
151 0,"SSL for verify callback",NULL
,NULL
,NULL
);
156 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
158 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
160 return ssl_x509_store_ctx_idx
;
163 void ssl_cert_set_default_md(CERT
*cert
)
165 /* Set digest values to defaults */
166 #ifndef OPENSSL_NO_DSA
167 cert
->pkeys
[SSL_PKEY_DSA_SIGN
].digest
= EVP_sha1();
169 #ifndef OPENSSL_NO_RSA
170 cert
->pkeys
[SSL_PKEY_RSA_SIGN
].digest
= EVP_sha1();
171 cert
->pkeys
[SSL_PKEY_RSA_ENC
].digest
= EVP_sha1();
173 #ifndef OPENSSL_NO_ECDSA
174 cert
->pkeys
[SSL_PKEY_ECC
].digest
= EVP_sha1();
178 CERT
*ssl_cert_new(void)
182 ret
=(CERT
*)OPENSSL_malloc(sizeof(CERT
));
185 SSLerr(SSL_F_SSL_CERT_NEW
,ERR_R_MALLOC_FAILURE
);
188 memset(ret
,0,sizeof(CERT
));
190 ret
->key
= &(ret
->pkeys
[SSL_PKEY_RSA_ENC
]);
192 ssl_cert_set_default_md(ret
);
196 CERT
*ssl_cert_dup(CERT
*cert
)
201 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
204 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
208 memset(ret
, 0, sizeof(CERT
));
210 ret
->key
= &ret
->pkeys
[cert
->key
- &cert
->pkeys
[0]];
211 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),
212 * if you find that more readable */
214 ret
->valid
= cert
->valid
;
215 ret
->mask_k
= cert
->mask_k
;
216 ret
->mask_a
= cert
->mask_a
;
217 ret
->export_mask_k
= cert
->export_mask_k
;
218 ret
->export_mask_a
= cert
->export_mask_a
;
220 #ifndef OPENSSL_NO_RSA
221 if (cert
->rsa_tmp
!= NULL
)
223 RSA_up_ref(cert
->rsa_tmp
);
224 ret
->rsa_tmp
= cert
->rsa_tmp
;
226 ret
->rsa_tmp_cb
= cert
->rsa_tmp_cb
;
229 #ifndef OPENSSL_NO_DH
230 if (cert
->dh_tmp
!= NULL
)
232 ret
->dh_tmp
= DHparams_dup(cert
->dh_tmp
);
233 if (ret
->dh_tmp
== NULL
)
235 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_DH_LIB
);
238 if (cert
->dh_tmp
->priv_key
)
240 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->priv_key
);
243 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
246 ret
->dh_tmp
->priv_key
= b
;
248 if (cert
->dh_tmp
->pub_key
)
250 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->pub_key
);
253 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
256 ret
->dh_tmp
->pub_key
= b
;
259 ret
->dh_tmp_cb
= cert
->dh_tmp_cb
;
262 #ifndef OPENSSL_NO_ECDH
265 ret
->ecdh_tmp
= EC_KEY_dup(cert
->ecdh_tmp
);
266 if (ret
->ecdh_tmp
== NULL
)
268 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_EC_LIB
);
272 ret
->ecdh_tmp_cb
= cert
->ecdh_tmp_cb
;
273 ret
->ecdh_tmp_auto
= cert
->ecdh_tmp_auto
;
276 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
278 CERT_PKEY
*cpk
= cert
->pkeys
+ i
;
279 CERT_PKEY
*rpk
= ret
->pkeys
+ i
;
280 if (cpk
->x509
!= NULL
)
282 rpk
->x509
= cpk
->x509
;
283 CRYPTO_add(&rpk
->x509
->references
, 1, CRYPTO_LOCK_X509
);
286 if (cpk
->privatekey
!= NULL
)
288 rpk
->privatekey
= cpk
->privatekey
;
289 CRYPTO_add(&cpk
->privatekey
->references
, 1,
290 CRYPTO_LOCK_EVP_PKEY
);
294 /* If there was anything special to do for
295 * certain types of keys, we'd do it here.
296 * (Nothing at the moment, I think.) */
298 case SSL_PKEY_RSA_ENC
:
299 case SSL_PKEY_RSA_SIGN
:
300 /* We have an RSA key. */
303 case SSL_PKEY_DSA_SIGN
:
304 /* We have a DSA key. */
307 case SSL_PKEY_DH_RSA
:
308 case SSL_PKEY_DH_DSA
:
309 /* We have a DH key. */
313 /* We have an ECC key */
318 SSLerr(SSL_F_SSL_CERT_DUP
, SSL_R_LIBRARY_BUG
);
324 rpk
->chain
= X509_chain_up_ref(cpk
->chain
);
327 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
331 rpk
->valid_flags
= 0;
332 #ifndef OPENSSL_NO_TLSEXT
333 if (cert
->pkeys
[i
].serverinfo
!= NULL
)
335 /* Just copy everything. */
336 ret
->pkeys
[i
].serverinfo
=
337 OPENSSL_malloc(cert
->pkeys
[i
].serverinfo_length
);
338 if (ret
->pkeys
[i
].serverinfo
== NULL
)
340 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
343 ret
->pkeys
[i
].serverinfo_length
=
344 cert
->pkeys
[i
].serverinfo_length
;
345 memcpy(ret
->pkeys
[i
].serverinfo
,
346 cert
->pkeys
[i
].serverinfo
,
347 cert
->pkeys
[i
].serverinfo_length
);
353 /* Set digests to defaults. NB: we don't copy existing values as they
354 * will be set during handshake.
356 ssl_cert_set_default_md(ret
);
357 /* Peer sigalgs set to NULL as we get these from handshake too */
358 ret
->peer_sigalgs
= NULL
;
359 ret
->peer_sigalgslen
= 0;
360 /* Configured sigalgs however we copy across */
362 if (cert
->conf_sigalgs
)
364 ret
->conf_sigalgs
= OPENSSL_malloc(cert
->conf_sigalgslen
);
365 if (!ret
->conf_sigalgs
)
367 memcpy(ret
->conf_sigalgs
, cert
->conf_sigalgs
,
368 cert
->conf_sigalgslen
);
369 ret
->conf_sigalgslen
= cert
->conf_sigalgslen
;
372 ret
->conf_sigalgs
= NULL
;
374 if (cert
->client_sigalgs
)
376 ret
->client_sigalgs
= OPENSSL_malloc(cert
->client_sigalgslen
);
377 if (!ret
->client_sigalgs
)
379 memcpy(ret
->client_sigalgs
, cert
->client_sigalgs
,
380 cert
->client_sigalgslen
);
381 ret
->client_sigalgslen
= cert
->client_sigalgslen
;
384 ret
->client_sigalgs
= NULL
;
385 /* Shared sigalgs also NULL */
386 ret
->shared_sigalgs
= NULL
;
387 /* Copy any custom client certificate types */
390 ret
->ctypes
= OPENSSL_malloc(cert
->ctype_num
);
393 memcpy(ret
->ctypes
, cert
->ctypes
, cert
->ctype_num
);
394 ret
->ctype_num
= cert
->ctype_num
;
397 ret
->cert_flags
= cert
->cert_flags
;
399 ret
->cert_cb
= cert
->cert_cb
;
400 ret
->cert_cb_arg
= cert
->cert_cb_arg
;
402 if (cert
->verify_store
)
404 CRYPTO_add(&cert
->verify_store
->references
, 1, CRYPTO_LOCK_X509_STORE
);
405 ret
->verify_store
= cert
->verify_store
;
408 if (cert
->chain_store
)
410 CRYPTO_add(&cert
->chain_store
->references
, 1, CRYPTO_LOCK_X509_STORE
);
411 ret
->chain_store
= cert
->chain_store
;
414 ret
->ciphers_raw
= NULL
;
418 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
421 #ifndef OPENSSL_NO_RSA
422 if (ret
->rsa_tmp
!= NULL
)
423 RSA_free(ret
->rsa_tmp
);
425 #ifndef OPENSSL_NO_DH
426 if (ret
->dh_tmp
!= NULL
)
427 DH_free(ret
->dh_tmp
);
429 #ifndef OPENSSL_NO_ECDH
430 if (ret
->ecdh_tmp
!= NULL
)
431 EC_KEY_free(ret
->ecdh_tmp
);
434 ssl_cert_clear_certs(ret
);
439 /* Free up and clear all certificates and chains */
441 void ssl_cert_clear_certs(CERT
*c
)
446 for (i
= 0; i
<SSL_PKEY_NUM
; i
++)
448 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
451 X509_free(cpk
->x509
);
456 EVP_PKEY_free(cpk
->privatekey
);
457 cpk
->privatekey
= NULL
;
461 sk_X509_pop_free(cpk
->chain
, X509_free
);
464 #ifndef OPENSSL_NO_TLSEXT
467 OPENSSL_free(cpk
->serverinfo
);
468 cpk
->serverinfo
= NULL
;
469 cpk
->serverinfo_length
= 0;
472 /* Clear all flags apart from explicit sign */
473 cpk
->valid_flags
&= CERT_PKEY_EXPLICIT_SIGN
;
477 void ssl_cert_free(CERT
*c
)
484 i
=CRYPTO_add(&c
->references
,-1,CRYPTO_LOCK_SSL_CERT
);
492 fprintf(stderr
,"ssl_cert_free, bad reference count\n");
497 #ifndef OPENSSL_NO_RSA
498 if (c
->rsa_tmp
) RSA_free(c
->rsa_tmp
);
500 #ifndef OPENSSL_NO_DH
501 if (c
->dh_tmp
) DH_free(c
->dh_tmp
);
503 #ifndef OPENSSL_NO_ECDH
504 if (c
->ecdh_tmp
) EC_KEY_free(c
->ecdh_tmp
);
507 ssl_cert_clear_certs(c
);
509 OPENSSL_free(c
->peer_sigalgs
);
511 OPENSSL_free(c
->conf_sigalgs
);
512 if (c
->client_sigalgs
)
513 OPENSSL_free(c
->client_sigalgs
);
514 if (c
->shared_sigalgs
)
515 OPENSSL_free(c
->shared_sigalgs
);
517 OPENSSL_free(c
->ctypes
);
519 X509_STORE_free(c
->verify_store
);
521 X509_STORE_free(c
->chain_store
);
523 OPENSSL_free(c
->ciphers_raw
);
527 int ssl_cert_inst(CERT
**o
)
529 /* Create a CERT if there isn't already one
530 * (which cannot really happen, as it is initially created in
531 * SSL_CTX_new; but the earlier code usually allows for that one
532 * being non-existant, so we follow that behaviour, as it might
533 * turn out that there actually is a reason for it -- but I'm
534 * not sure that *all* of the existing code could cope with
535 * s->cert being NULL, otherwise we could do without the
536 * initialization in SSL_CTX_new).
541 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
546 if ((*o
= ssl_cert_new()) == NULL
)
548 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
555 int ssl_cert_set0_chain(CERT
*c
, STACK_OF(X509
) *chain
)
557 CERT_PKEY
*cpk
= c
->key
;
561 sk_X509_pop_free(cpk
->chain
, X509_free
);
566 int ssl_cert_set1_chain(CERT
*c
, STACK_OF(X509
) *chain
)
568 STACK_OF(X509
) *dchain
;
570 return ssl_cert_set0_chain(c
, NULL
);
571 dchain
= X509_chain_up_ref(chain
);
574 if (!ssl_cert_set0_chain(c
, dchain
))
576 sk_X509_pop_free(dchain
, X509_free
);
582 int ssl_cert_add0_chain_cert(CERT
*c
, X509
*x
)
584 CERT_PKEY
*cpk
= c
->key
;
588 cpk
->chain
= sk_X509_new_null();
589 if (!cpk
->chain
|| !sk_X509_push(cpk
->chain
, x
))
594 int ssl_cert_add1_chain_cert(CERT
*c
, X509
*x
)
596 if (!ssl_cert_add0_chain_cert(c
, x
))
598 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
602 int ssl_cert_select_current(CERT
*c
, X509
*x
)
607 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
609 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
610 if (cpk
->x509
== x
&& cpk
->privatekey
)
617 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
619 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
620 if (cpk
->privatekey
&& cpk
->x509
&& !X509_cmp(cpk
->x509
, x
))
629 int ssl_cert_set_current(CERT
*c
, long op
)
634 if (op
== SSL_CERT_SET_FIRST
)
636 else if (op
== SSL_CERT_SET_NEXT
)
638 idx
= (int)(c
->key
- c
->pkeys
+ 1);
639 if (idx
>= SSL_PKEY_NUM
)
644 for (i
= idx
; i
< SSL_PKEY_NUM
; i
++)
646 CERT_PKEY
*cpk
= c
->key
+ i
;
647 if (cpk
->x509
&& cpk
->privatekey
)
656 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
)(SSL
*ssl
, void *arg
), void *arg
)
659 c
->cert_cb_arg
= arg
;
662 SESS_CERT
*ssl_sess_cert_new(void)
666 ret
= OPENSSL_malloc(sizeof *ret
);
669 SSLerr(SSL_F_SSL_SESS_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
673 memset(ret
, 0 ,sizeof *ret
);
674 ret
->peer_key
= &(ret
->peer_pkeys
[SSL_PKEY_RSA_ENC
]);
680 void ssl_sess_cert_free(SESS_CERT
*sc
)
687 i
= CRYPTO_add(&sc
->references
, -1, CRYPTO_LOCK_SSL_SESS_CERT
);
689 REF_PRINT("SESS_CERT", sc
);
696 fprintf(stderr
,"ssl_sess_cert_free, bad reference count\n");
702 if (sc
->cert_chain
!= NULL
)
703 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
704 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
706 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
707 X509_free(sc
->peer_pkeys
[i
].x509
);
708 #if 0 /* We don't have the peer's private key. These lines are just
709 * here as a reminder that we're still using a not-quite-appropriate
711 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
712 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
716 #ifndef OPENSSL_NO_RSA
717 if (sc
->peer_rsa_tmp
!= NULL
)
718 RSA_free(sc
->peer_rsa_tmp
);
720 #ifndef OPENSSL_NO_DH
721 if (sc
->peer_dh_tmp
!= NULL
)
722 DH_free(sc
->peer_dh_tmp
);
724 #ifndef OPENSSL_NO_ECDH
725 if (sc
->peer_ecdh_tmp
!= NULL
)
726 EC_KEY_free(sc
->peer_ecdh_tmp
);
732 int ssl_set_peer_cert_type(SESS_CERT
*sc
,int type
)
734 sc
->peer_cert_type
= type
;
738 int ssl_verify_cert_chain(SSL
*s
,STACK_OF(X509
) *sk
)
742 X509_STORE
*verify_store
;
745 if (s
->cert
->verify_store
)
746 verify_store
= s
->cert
->verify_store
;
748 verify_store
= s
->ctx
->cert_store
;
750 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
753 x
=sk_X509_value(sk
,0);
754 if(!X509_STORE_CTX_init(&ctx
,verify_store
,x
,sk
))
756 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,ERR_R_X509_LIB
);
759 /* Set suite B flags if needed */
760 X509_STORE_CTX_set_flags(&ctx
, tls1_suiteb(s
));
762 if (SSL_get_verify_depth(s
) >= 0)
763 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
765 X509_STORE_CTX_set_ex_data(&ctx
,SSL_get_ex_data_X509_STORE_CTX_idx(),s
);
767 /* We need to inherit the verify parameters. These can be determined by
768 * the context: if its a server it will verify SSL client certificates
772 X509_STORE_CTX_set_default(&ctx
,
773 s
->server
? "ssl_client" : "ssl_server");
774 /* Anything non-default in "param" should overwrite anything in the
777 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx
), s
->param
);
779 if (s
->verify_callback
)
780 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
782 if (s
->ctx
->app_verify_callback
!= NULL
)
783 #if 1 /* new with OpenSSL 0.9.7 */
784 i
=s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
786 i
=s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
790 #ifndef OPENSSL_NO_X509_VERIFY
791 i
=X509_verify_cert(&ctx
);
794 ctx
.error
=X509_V_ERR_APPLICATION_VERIFICATION
;
795 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,SSL_R_NO_VERIFY_CALLBACK
);
799 s
->verify_result
=ctx
.error
;
800 X509_STORE_CTX_cleanup(&ctx
);
805 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,STACK_OF(X509_NAME
) *name_list
)
807 if (*ca_list
!= NULL
)
808 sk_X509_NAME_pop_free(*ca_list
,X509_NAME_free
);
813 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
816 STACK_OF(X509_NAME
) *ret
;
819 ret
=sk_X509_NAME_new_null();
820 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
822 name
=X509_NAME_dup(sk_X509_NAME_value(sk
,i
));
823 if ((name
== NULL
) || !sk_X509_NAME_push(ret
,name
))
825 sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
832 void SSL_set_client_CA_list(SSL
*s
,STACK_OF(X509_NAME
) *name_list
)
834 set_client_CA_list(&(s
->client_CA
),name_list
);
837 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
,STACK_OF(X509_NAME
) *name_list
)
839 set_client_CA_list(&(ctx
->client_CA
),name_list
);
842 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
844 return(ctx
->client_CA
);
847 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
849 if (s
->type
== SSL_ST_CONNECT
)
850 { /* we are in the client */
851 if (((s
->version
>>8) == SSL3_VERSION_MAJOR
) &&
853 return(s
->s3
->tmp
.ca_names
);
859 if (s
->client_CA
!= NULL
)
860 return(s
->client_CA
);
862 return(s
->ctx
->client_CA
);
866 static int add_client_CA(STACK_OF(X509_NAME
) **sk
,X509
*x
)
870 if (x
== NULL
) return(0);
871 if ((*sk
== NULL
) && ((*sk
=sk_X509_NAME_new_null()) == NULL
))
874 if ((name
=X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
877 if (!sk_X509_NAME_push(*sk
,name
))
879 X509_NAME_free(name
);
885 int SSL_add_client_CA(SSL
*ssl
,X509
*x
)
887 return(add_client_CA(&(ssl
->client_CA
),x
));
890 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
,X509
*x
)
892 return(add_client_CA(&(ctx
->client_CA
),x
));
895 static int xname_cmp(const X509_NAME
* const *a
, const X509_NAME
* const *b
)
897 return(X509_NAME_cmp(*a
,*b
));
900 #ifndef OPENSSL_NO_STDIO
902 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
903 * it doesn't really have anything to do with clients (except that a common use
904 * for a stack of CAs is to send it to the client). Actually, it doesn't have
905 * much to do with CAs, either, since it will load any old cert.
906 * \param file the file containing one or more certs.
907 * \return a ::STACK containing the certs.
909 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
914 STACK_OF(X509_NAME
) *ret
= NULL
,*sk
;
916 sk
=sk_X509_NAME_new(xname_cmp
);
918 in
=BIO_new(BIO_s_file_internal());
920 if ((sk
== NULL
) || (in
== NULL
))
922 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
926 if (!BIO_read_filename(in
,file
))
931 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
935 ret
= sk_X509_NAME_new_null();
938 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
942 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
943 /* check for duplicates */
944 xn
=X509_NAME_dup(xn
);
945 if (xn
== NULL
) goto err
;
946 if (sk_X509_NAME_find(sk
,xn
) >= 0)
950 sk_X509_NAME_push(sk
,xn
);
951 sk_X509_NAME_push(ret
,xn
);
958 if (ret
!= NULL
) sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
961 if (sk
!= NULL
) sk_X509_NAME_free(sk
);
962 if (in
!= NULL
) BIO_free(in
);
963 if (x
!= NULL
) X509_free(x
);
971 * Add a file of certs to a stack.
972 * \param stack the stack to add to.
973 * \param file the file to add from. All certs in this file that are not
974 * already in the stack will be added.
975 * \return 1 for success, 0 for failure. Note that in the case of failure some
976 * certs may have been added to \c stack.
979 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
986 int (*oldcmp
)(const X509_NAME
* const *a
, const X509_NAME
* const *b
);
988 oldcmp
=sk_X509_NAME_set_cmp_func(stack
,xname_cmp
);
990 in
=BIO_new(BIO_s_file_internal());
994 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,ERR_R_MALLOC_FAILURE
);
998 if (!BIO_read_filename(in
,file
))
1003 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
1005 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
1006 xn
=X509_NAME_dup(xn
);
1007 if (xn
== NULL
) goto err
;
1008 if (sk_X509_NAME_find(stack
,xn
) >= 0)
1011 sk_X509_NAME_push(stack
,xn
);
1026 (void)sk_X509_NAME_set_cmp_func(stack
,oldcmp
);
1032 * Add a directory of certs to a stack.
1033 * \param stack the stack to append to.
1034 * \param dir the directory to append from. All files in this directory will be
1035 * examined as potential certs. Any that are acceptable to
1036 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
1038 * \return 1 for success, 0 for failure. Note that in the case of failure some
1039 * certs may have been added to \c stack.
1042 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
1045 OPENSSL_DIR_CTX
*d
= NULL
;
1046 const char *filename
;
1049 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
1051 /* Note that a side effect is that the CAs will be sorted by name */
1053 while((filename
= OPENSSL_DIR_read(&d
, dir
)))
1058 if(strlen(dir
)+strlen(filename
)+2 > sizeof buf
)
1060 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,SSL_R_PATH_TOO_LONG
);
1064 #ifdef OPENSSL_SYS_VMS
1065 r
= BIO_snprintf(buf
,sizeof buf
,"%s%s",dir
,filename
);
1067 r
= BIO_snprintf(buf
,sizeof buf
,"%s/%s",dir
,filename
);
1069 if (r
<= 0 || r
>= (int)sizeof(buf
))
1071 if(!SSL_add_file_cert_subjects_to_stack(stack
,buf
))
1077 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
1078 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
1079 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
1086 if (d
) OPENSSL_DIR_end(&d
);
1087 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);
1091 /* Add a certificate to a BUF_MEM structure */
1093 static int ssl_add_cert_to_buf(BUF_MEM
*buf
, unsigned long *l
, X509
*x
)
1099 if (!BUF_MEM_grow_clean(buf
,(int)(n
+(*l
)+3)))
1101 SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF
,ERR_R_BUF_LIB
);
1104 p
=(unsigned char *)&(buf
->data
[*l
]);
1112 /* Add certificate chain to internal SSL BUF_MEM strcuture */
1113 int ssl_add_cert_chain(SSL
*s
, CERT_PKEY
*cpk
, unsigned long *l
)
1115 BUF_MEM
*buf
= s
->init_buf
;
1119 STACK_OF(X509
) *extra_certs
;
1120 X509_STORE
*chain_store
;
1122 /* TLSv1 sends a chain with nothing in it, instead of an alert */
1123 if (!BUF_MEM_grow_clean(buf
,10))
1125 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
,ERR_R_BUF_LIB
);
1129 if (!cpk
|| !cpk
->x509
)
1134 /* If we have a certificate specific chain use it, else use
1138 extra_certs
= cpk
->chain
;
1140 extra_certs
= s
->ctx
->extra_certs
;
1142 if ((s
->mode
& SSL_MODE_NO_AUTO_CHAIN
) || extra_certs
)
1144 else if (s
->cert
->chain_store
)
1145 chain_store
= s
->cert
->chain_store
;
1147 chain_store
= s
->ctx
->cert_store
;
1151 X509_STORE_CTX xs_ctx
;
1153 if (!X509_STORE_CTX_init(&xs_ctx
,chain_store
,x
,NULL
))
1155 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
,ERR_R_X509_LIB
);
1158 X509_verify_cert(&xs_ctx
);
1159 /* Don't leave errors in the queue */
1161 for (i
=0; i
< sk_X509_num(xs_ctx
.chain
); i
++)
1163 x
= sk_X509_value(xs_ctx
.chain
, i
);
1165 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1167 X509_STORE_CTX_cleanup(&xs_ctx
);
1171 X509_STORE_CTX_cleanup(&xs_ctx
);
1175 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1177 for (i
=0; i
<sk_X509_num(extra_certs
); i
++)
1179 x
=sk_X509_value(extra_certs
,i
);
1180 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1187 /* Build a certificate chain for current certificate */
1188 int ssl_build_cert_chain(CERT
*c
, X509_STORE
*chain_store
, int flags
)
1190 CERT_PKEY
*cpk
= c
->key
;
1191 X509_STORE_CTX xs_ctx
;
1192 STACK_OF(X509
) *chain
= NULL
, *untrusted
= NULL
;
1195 unsigned long error
;
1199 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_NO_CERTIFICATE_SET
);
1202 /* Rearranging and check the chain: add everything to a store */
1203 if (flags
& SSL_BUILD_CHAIN_FLAG_CHECK
)
1205 chain_store
= X509_STORE_new();
1208 for (i
= 0; i
< sk_X509_num(cpk
->chain
); i
++)
1210 x
= sk_X509_value(cpk
->chain
, i
);
1211 if (!X509_STORE_add_cert(chain_store
, x
))
1213 error
= ERR_peek_last_error();
1214 if (ERR_GET_LIB(error
) != ERR_LIB_X509
||
1215 ERR_GET_REASON(error
) != X509_R_CERT_ALREADY_IN_HASH_TABLE
)
1220 /* Add EE cert too: it might be self signed */
1221 if (!X509_STORE_add_cert(chain_store
, cpk
->x509
))
1223 error
= ERR_peek_last_error();
1224 if (ERR_GET_LIB(error
) != ERR_LIB_X509
||
1225 ERR_GET_REASON(error
) != X509_R_CERT_ALREADY_IN_HASH_TABLE
)
1233 chain_store
= c
->chain_store
;
1235 if (flags
& SSL_BUILD_CHAIN_FLAG_UNTRUSTED
)
1236 untrusted
= cpk
->chain
;
1239 if (!X509_STORE_CTX_init(&xs_ctx
, chain_store
, cpk
->x509
, untrusted
))
1241 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, ERR_R_X509_LIB
);
1244 /* Set suite B flags if needed */
1245 X509_STORE_CTX_set_flags(&xs_ctx
, c
->cert_flags
& SSL_CERT_FLAG_SUITEB_128_LOS
);
1247 i
= X509_verify_cert(&xs_ctx
);
1248 if (i
<= 0 && flags
& SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR
)
1250 if (flags
& SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR
)
1256 chain
= X509_STORE_CTX_get1_chain(&xs_ctx
);
1259 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_CERTIFICATE_VERIFY_FAILED
);
1260 i
= X509_STORE_CTX_get_error(&xs_ctx
);
1261 ERR_add_error_data(2, "Verify error:",
1262 X509_verify_cert_error_string(i
));
1264 X509_STORE_CTX_cleanup(&xs_ctx
);
1267 X509_STORE_CTX_cleanup(&xs_ctx
);
1269 sk_X509_pop_free(cpk
->chain
, X509_free
);
1270 /* Remove EE certificate from chain */
1271 x
= sk_X509_shift(chain
);
1273 if (flags
& SSL_BUILD_CHAIN_FLAG_NO_ROOT
)
1275 if (sk_X509_num(chain
) > 0)
1277 /* See if last cert is self signed */
1278 x
= sk_X509_value(chain
, sk_X509_num(chain
) - 1);
1279 X509_check_purpose(x
, -1, 0);
1280 if (x
->ex_flags
& EXFLAG_SS
)
1282 x
= sk_X509_pop(chain
);
1291 if (flags
& SSL_BUILD_CHAIN_FLAG_CHECK
)
1292 X509_STORE_free(chain_store
);
1297 int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
, int ref
)
1299 X509_STORE
**pstore
;
1301 pstore
= &c
->chain_store
;
1303 pstore
= &c
->verify_store
;
1305 X509_STORE_free(*pstore
);
1308 CRYPTO_add(&store
->references
, 1, CRYPTO_LOCK_X509_STORE
);