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
);
325 rpk
->chain
= sk_X509_dup(cpk
->chain
);
328 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
331 for (j
= 0; j
< sk_X509_num(rpk
->chain
); j
++)
333 X509
*x
= sk_X509_value(rpk
->chain
, j
);
334 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
337 rpk
->valid_flags
= 0;
338 if (cert
->pkeys
[i
].authz
!= NULL
)
340 /* Just copy everything. */
341 ret
->pkeys
[i
].authz_length
=
342 cert
->pkeys
[i
].authz_length
;
343 ret
->pkeys
[i
].authz
=
344 OPENSSL_malloc(ret
->pkeys
[i
].authz_length
);
345 if (ret
->pkeys
[i
].authz
== NULL
)
347 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
350 memcpy(ret
->pkeys
[i
].authz
,
351 cert
->pkeys
[i
].authz
,
352 cert
->pkeys
[i
].authz_length
);
357 /* Set digests to defaults. NB: we don't copy existing values as they
358 * will be set during handshake.
360 ssl_cert_set_default_md(ret
);
361 /* Peer sigalgs set to NULL as we get these from handshake too */
362 ret
->peer_sigalgs
= NULL
;
363 ret
->peer_sigalgslen
= 0;
364 /* Configured sigalgs however we copy across */
366 if (cert
->conf_sigalgs
)
368 ret
->conf_sigalgs
= OPENSSL_malloc(cert
->conf_sigalgslen
);
369 if (!ret
->conf_sigalgs
)
371 memcpy(ret
->conf_sigalgs
, cert
->conf_sigalgs
,
372 cert
->conf_sigalgslen
);
373 ret
->conf_sigalgslen
= cert
->conf_sigalgslen
;
376 ret
->conf_sigalgs
= NULL
;
378 if (cert
->client_sigalgs
)
380 ret
->client_sigalgs
= OPENSSL_malloc(cert
->client_sigalgslen
);
381 if (!ret
->client_sigalgs
)
383 memcpy(ret
->client_sigalgs
, cert
->client_sigalgs
,
384 cert
->client_sigalgslen
);
385 ret
->client_sigalgslen
= cert
->client_sigalgslen
;
388 ret
->client_sigalgs
= NULL
;
389 /* Shared sigalgs also NULL */
390 ret
->shared_sigalgs
= NULL
;
391 /* Copy any custom client certificate types */
394 ret
->ctypes
= OPENSSL_malloc(cert
->ctype_num
);
397 memcpy(ret
->ctypes
, cert
->ctypes
, cert
->ctype_num
);
398 ret
->ctype_num
= cert
->ctype_num
;
401 ret
->cert_flags
= cert
->cert_flags
;
403 ret
->cert_cb
= cert
->cert_cb
;
404 ret
->cert_cb_arg
= cert
->cert_cb_arg
;
406 if (cert
->verify_store
)
408 CRYPTO_add(&cert
->verify_store
->references
, 1, CRYPTO_LOCK_X509_STORE
);
409 ret
->verify_store
= cert
->verify_store
;
412 if (cert
->chain_store
)
414 CRYPTO_add(&cert
->chain_store
->references
, 1, CRYPTO_LOCK_X509_STORE
);
415 ret
->chain_store
= cert
->chain_store
;
420 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
423 #ifndef OPENSSL_NO_RSA
424 if (ret
->rsa_tmp
!= NULL
)
425 RSA_free(ret
->rsa_tmp
);
427 #ifndef OPENSSL_NO_DH
428 if (ret
->dh_tmp
!= NULL
)
429 DH_free(ret
->dh_tmp
);
431 #ifndef OPENSSL_NO_ECDH
432 if (ret
->ecdh_tmp
!= NULL
)
433 EC_KEY_free(ret
->ecdh_tmp
);
436 ssl_cert_clear_certs(ret
);
441 /* Free up and clear all certificates and chains */
443 void ssl_cert_clear_certs(CERT
*c
)
448 for (i
= 0; i
<SSL_PKEY_NUM
; i
++)
450 CERT_PKEY
*cpk
= c
->pkeys
+ i
;
453 X509_free(cpk
->x509
);
458 EVP_PKEY_free(cpk
->privatekey
);
459 cpk
->privatekey
= NULL
;
463 sk_X509_pop_free(cpk
->chain
, X509_free
);
466 #ifndef OPENSSL_NO_TLSEXT
467 if (cpk
->authz
!= NULL
)
468 OPENSSL_free(cpk
->authz
);
470 cpk
->valid_flags
= 0;
474 void ssl_cert_free(CERT
*c
)
481 i
=CRYPTO_add(&c
->references
,-1,CRYPTO_LOCK_SSL_CERT
);
489 fprintf(stderr
,"ssl_cert_free, bad reference count\n");
494 #ifndef OPENSSL_NO_RSA
495 if (c
->rsa_tmp
) RSA_free(c
->rsa_tmp
);
497 #ifndef OPENSSL_NO_DH
498 if (c
->dh_tmp
) DH_free(c
->dh_tmp
);
500 #ifndef OPENSSL_NO_ECDH
501 if (c
->ecdh_tmp
) EC_KEY_free(c
->ecdh_tmp
);
504 ssl_cert_clear_certs(c
);
506 OPENSSL_free(c
->peer_sigalgs
);
508 OPENSSL_free(c
->conf_sigalgs
);
509 if (c
->client_sigalgs
)
510 OPENSSL_free(c
->client_sigalgs
);
511 if (c
->shared_sigalgs
)
512 OPENSSL_free(c
->shared_sigalgs
);
514 OPENSSL_free(c
->ctypes
);
516 X509_STORE_free(c
->verify_store
);
518 X509_STORE_free(c
->chain_store
);
522 int ssl_cert_inst(CERT
**o
)
524 /* Create a CERT if there isn't already one
525 * (which cannot really happen, as it is initially created in
526 * SSL_CTX_new; but the earlier code usually allows for that one
527 * being non-existant, so we follow that behaviour, as it might
528 * turn out that there actually is a reason for it -- but I'm
529 * not sure that *all* of the existing code could cope with
530 * s->cert being NULL, otherwise we could do without the
531 * initialization in SSL_CTX_new).
536 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
541 if ((*o
= ssl_cert_new()) == NULL
)
543 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
550 int ssl_cert_set0_chain(CERT
*c
, STACK_OF(X509
) *chain
)
552 CERT_PKEY
*cpk
= c
->key
;
556 sk_X509_pop_free(cpk
->chain
, X509_free
);
561 int ssl_cert_set1_chain(CERT
*c
, STACK_OF(X509
) *chain
)
563 STACK_OF(X509
) *dchain
;
567 return ssl_cert_set0_chain(c
, NULL
);
568 dchain
= sk_X509_dup(chain
);
571 for (i
= 0; i
< sk_X509_num(dchain
); i
++)
573 x
= sk_X509_value(dchain
, i
);
574 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
576 if (!ssl_cert_set0_chain(c
, dchain
))
578 sk_X509_pop_free(dchain
, X509_free
);
584 int ssl_cert_add0_chain_cert(CERT
*c
, X509
*x
)
586 CERT_PKEY
*cpk
= c
->key
;
590 cpk
->chain
= sk_X509_new_null();
591 if (!cpk
->chain
|| !sk_X509_push(cpk
->chain
, x
))
596 int ssl_cert_add1_chain_cert(CERT
*c
, X509
*x
)
598 if (!ssl_cert_add0_chain_cert(c
, x
))
600 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
604 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
)(SSL
*ssl
, void *arg
), void *arg
)
607 c
->cert_cb_arg
= arg
;
610 SESS_CERT
*ssl_sess_cert_new(void)
614 ret
= OPENSSL_malloc(sizeof *ret
);
617 SSLerr(SSL_F_SSL_SESS_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
621 memset(ret
, 0 ,sizeof *ret
);
622 ret
->peer_key
= &(ret
->peer_pkeys
[SSL_PKEY_RSA_ENC
]);
628 void ssl_sess_cert_free(SESS_CERT
*sc
)
635 i
= CRYPTO_add(&sc
->references
, -1, CRYPTO_LOCK_SSL_SESS_CERT
);
637 REF_PRINT("SESS_CERT", sc
);
644 fprintf(stderr
,"ssl_sess_cert_free, bad reference count\n");
650 if (sc
->cert_chain
!= NULL
)
651 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
652 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
654 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
655 X509_free(sc
->peer_pkeys
[i
].x509
);
656 #if 0 /* We don't have the peer's private key. These lines are just
657 * here as a reminder that we're still using a not-quite-appropriate
659 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
660 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
664 #ifndef OPENSSL_NO_RSA
665 if (sc
->peer_rsa_tmp
!= NULL
)
666 RSA_free(sc
->peer_rsa_tmp
);
668 #ifndef OPENSSL_NO_DH
669 if (sc
->peer_dh_tmp
!= NULL
)
670 DH_free(sc
->peer_dh_tmp
);
672 #ifndef OPENSSL_NO_ECDH
673 if (sc
->peer_ecdh_tmp
!= NULL
)
674 EC_KEY_free(sc
->peer_ecdh_tmp
);
680 int ssl_set_peer_cert_type(SESS_CERT
*sc
,int type
)
682 sc
->peer_cert_type
= type
;
686 int ssl_verify_cert_chain(SSL
*s
,STACK_OF(X509
) *sk
)
690 X509_STORE
*verify_store
;
693 if (s
->cert
->verify_store
)
694 verify_store
= s
->cert
->verify_store
;
696 verify_store
= s
->ctx
->cert_store
;
698 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
701 x
=sk_X509_value(sk
,0);
702 if(!X509_STORE_CTX_init(&ctx
,verify_store
,x
,sk
))
704 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,ERR_R_X509_LIB
);
708 if (SSL_get_verify_depth(s
) >= 0)
709 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
711 X509_STORE_CTX_set_ex_data(&ctx
,SSL_get_ex_data_X509_STORE_CTX_idx(),s
);
713 /* We need to inherit the verify parameters. These can be determined by
714 * the context: if its a server it will verify SSL client certificates
718 X509_STORE_CTX_set_default(&ctx
,
719 s
->server
? "ssl_client" : "ssl_server");
720 /* Anything non-default in "param" should overwrite anything in the
723 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx
), s
->param
);
725 if (s
->verify_callback
)
726 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
728 if (s
->ctx
->app_verify_callback
!= NULL
)
729 #if 1 /* new with OpenSSL 0.9.7 */
730 i
=s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
732 i
=s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
736 #ifndef OPENSSL_NO_X509_VERIFY
737 i
=X509_verify_cert(&ctx
);
740 ctx
.error
=X509_V_ERR_APPLICATION_VERIFICATION
;
741 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,SSL_R_NO_VERIFY_CALLBACK
);
745 s
->verify_result
=ctx
.error
;
746 X509_STORE_CTX_cleanup(&ctx
);
751 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,STACK_OF(X509_NAME
) *name_list
)
753 if (*ca_list
!= NULL
)
754 sk_X509_NAME_pop_free(*ca_list
,X509_NAME_free
);
759 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
762 STACK_OF(X509_NAME
) *ret
;
765 ret
=sk_X509_NAME_new_null();
766 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
768 name
=X509_NAME_dup(sk_X509_NAME_value(sk
,i
));
769 if ((name
== NULL
) || !sk_X509_NAME_push(ret
,name
))
771 sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
778 void SSL_set_client_CA_list(SSL
*s
,STACK_OF(X509_NAME
) *name_list
)
780 set_client_CA_list(&(s
->client_CA
),name_list
);
783 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
,STACK_OF(X509_NAME
) *name_list
)
785 set_client_CA_list(&(ctx
->client_CA
),name_list
);
788 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
790 return(ctx
->client_CA
);
793 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
795 if (s
->type
== SSL_ST_CONNECT
)
796 { /* we are in the client */
797 if (((s
->version
>>8) == SSL3_VERSION_MAJOR
) &&
799 return(s
->s3
->tmp
.ca_names
);
805 if (s
->client_CA
!= NULL
)
806 return(s
->client_CA
);
808 return(s
->ctx
->client_CA
);
812 static int add_client_CA(STACK_OF(X509_NAME
) **sk
,X509
*x
)
816 if (x
== NULL
) return(0);
817 if ((*sk
== NULL
) && ((*sk
=sk_X509_NAME_new_null()) == NULL
))
820 if ((name
=X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
823 if (!sk_X509_NAME_push(*sk
,name
))
825 X509_NAME_free(name
);
831 int SSL_add_client_CA(SSL
*ssl
,X509
*x
)
833 return(add_client_CA(&(ssl
->client_CA
),x
));
836 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
,X509
*x
)
838 return(add_client_CA(&(ctx
->client_CA
),x
));
841 static int xname_cmp(const X509_NAME
* const *a
, const X509_NAME
* const *b
)
843 return(X509_NAME_cmp(*a
,*b
));
846 #ifndef OPENSSL_NO_STDIO
848 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
849 * it doesn't really have anything to do with clients (except that a common use
850 * for a stack of CAs is to send it to the client). Actually, it doesn't have
851 * much to do with CAs, either, since it will load any old cert.
852 * \param file the file containing one or more certs.
853 * \return a ::STACK containing the certs.
855 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
860 STACK_OF(X509_NAME
) *ret
= NULL
,*sk
;
862 sk
=sk_X509_NAME_new(xname_cmp
);
864 in
=BIO_new(BIO_s_file_internal());
866 if ((sk
== NULL
) || (in
== NULL
))
868 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
872 if (!BIO_read_filename(in
,file
))
877 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
881 ret
= sk_X509_NAME_new_null();
884 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
888 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
889 /* check for duplicates */
890 xn
=X509_NAME_dup(xn
);
891 if (xn
== NULL
) goto err
;
892 if (sk_X509_NAME_find(sk
,xn
) >= 0)
896 sk_X509_NAME_push(sk
,xn
);
897 sk_X509_NAME_push(ret
,xn
);
904 if (ret
!= NULL
) sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
907 if (sk
!= NULL
) sk_X509_NAME_free(sk
);
908 if (in
!= NULL
) BIO_free(in
);
909 if (x
!= NULL
) X509_free(x
);
917 * Add a file of certs to a stack.
918 * \param stack the stack to add to.
919 * \param file the file to add from. All certs in this file that are not
920 * already in the stack will be added.
921 * \return 1 for success, 0 for failure. Note that in the case of failure some
922 * certs may have been added to \c stack.
925 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
932 int (*oldcmp
)(const X509_NAME
* const *a
, const X509_NAME
* const *b
);
934 oldcmp
=sk_X509_NAME_set_cmp_func(stack
,xname_cmp
);
936 in
=BIO_new(BIO_s_file_internal());
940 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,ERR_R_MALLOC_FAILURE
);
944 if (!BIO_read_filename(in
,file
))
949 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
951 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
952 xn
=X509_NAME_dup(xn
);
953 if (xn
== NULL
) goto err
;
954 if (sk_X509_NAME_find(stack
,xn
) >= 0)
957 sk_X509_NAME_push(stack
,xn
);
972 (void)sk_X509_NAME_set_cmp_func(stack
,oldcmp
);
978 * Add a directory of certs to a stack.
979 * \param stack the stack to append to.
980 * \param dir the directory to append from. All files in this directory will be
981 * examined as potential certs. Any that are acceptable to
982 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
984 * \return 1 for success, 0 for failure. Note that in the case of failure some
985 * certs may have been added to \c stack.
988 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
991 OPENSSL_DIR_CTX
*d
= NULL
;
992 const char *filename
;
995 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
997 /* Note that a side effect is that the CAs will be sorted by name */
999 while((filename
= OPENSSL_DIR_read(&d
, dir
)))
1004 if(strlen(dir
)+strlen(filename
)+2 > sizeof buf
)
1006 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,SSL_R_PATH_TOO_LONG
);
1010 #ifdef OPENSSL_SYS_VMS
1011 r
= BIO_snprintf(buf
,sizeof buf
,"%s%s",dir
,filename
);
1013 r
= BIO_snprintf(buf
,sizeof buf
,"%s/%s",dir
,filename
);
1015 if (r
<= 0 || r
>= (int)sizeof(buf
))
1017 if(!SSL_add_file_cert_subjects_to_stack(stack
,buf
))
1023 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
1024 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
1025 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
1032 if (d
) OPENSSL_DIR_end(&d
);
1033 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);
1037 /* Add a certificate to a BUF_MEM structure */
1039 static int ssl_add_cert_to_buf(BUF_MEM
*buf
, unsigned long *l
, X509
*x
)
1045 if (!BUF_MEM_grow_clean(buf
,(int)(n
+(*l
)+3)))
1047 SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF
,ERR_R_BUF_LIB
);
1050 p
=(unsigned char *)&(buf
->data
[*l
]);
1058 /* Add certificate chain to internal SSL BUF_MEM strcuture */
1059 int ssl_add_cert_chain(SSL
*s
, CERT_PKEY
*cpk
, unsigned long *l
)
1061 BUF_MEM
*buf
= s
->init_buf
;
1066 STACK_OF(X509
) *extra_certs
;
1067 X509_STORE
*chain_store
;
1074 if (s
->cert
->chain_store
)
1075 chain_store
= s
->cert
->chain_store
;
1077 chain_store
= s
->ctx
->cert_store
;
1079 /* If we have a certificate specific chain use it, else use
1082 if (cpk
&& cpk
->chain
)
1083 extra_certs
= cpk
->chain
;
1085 extra_certs
= s
->ctx
->extra_certs
;
1087 if ((s
->mode
& SSL_MODE_NO_AUTO_CHAIN
) || extra_certs
)
1092 /* TLSv1 sends a chain with nothing in it, instead of an alert */
1093 if (!BUF_MEM_grow_clean(buf
,10))
1095 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
,ERR_R_BUF_LIB
);
1102 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1107 X509_STORE_CTX xs_ctx
;
1109 if (!X509_STORE_CTX_init(&xs_ctx
,chain_store
,x
,NULL
))
1111 SSLerr(SSL_F_SSL_ADD_CERT_CHAIN
,ERR_R_X509_LIB
);
1114 X509_verify_cert(&xs_ctx
);
1115 /* Don't leave errors in the queue */
1117 for (i
=0; i
< sk_X509_num(xs_ctx
.chain
); i
++)
1119 x
= sk_X509_value(xs_ctx
.chain
, i
);
1121 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1123 X509_STORE_CTX_cleanup(&xs_ctx
);
1127 X509_STORE_CTX_cleanup(&xs_ctx
);
1130 for (i
=0; i
<sk_X509_num(extra_certs
); i
++)
1132 x
=sk_X509_value(extra_certs
,i
);
1133 if (!ssl_add_cert_to_buf(buf
, l
, x
))
1140 /* Build a certificate chain for current certificate */
1141 int ssl_build_cert_chain(CERT
*c
, X509_STORE
*chain_store
, int flags
)
1143 CERT_PKEY
*cpk
= c
->key
;
1144 X509_STORE_CTX xs_ctx
;
1145 STACK_OF(X509
) *chain
= NULL
, *untrusted
= NULL
;
1151 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_NO_CERTIFICATE_SET
);
1156 chain_store
= c
->chain_store
;
1158 if (flags
& SSL_BUILD_CHAIN_FLAG_UNTRUSTED
)
1159 untrusted
= cpk
->chain
;
1161 if (!X509_STORE_CTX_init(&xs_ctx
, chain_store
, cpk
->x509
, untrusted
))
1163 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, ERR_R_X509_LIB
);
1167 i
= X509_verify_cert(&xs_ctx
);
1169 chain
= X509_STORE_CTX_get1_chain(&xs_ctx
);
1170 X509_STORE_CTX_cleanup(&xs_ctx
);
1173 SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN
, SSL_R_CERTIFICATE_VERIFY_FAILED
);
1177 sk_X509_pop_free(cpk
->chain
, X509_free
);
1178 /* Remove EE certificate from chain */
1179 x
= sk_X509_shift(chain
);
1181 if (flags
& SSL_BUILD_CHAIN_FLAG_NO_ROOT
)
1183 x
= sk_X509_pop(chain
);
1191 int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
, int ref
)
1193 X509_STORE
**pstore
;
1195 pstore
= &c
->chain_store
;
1197 pstore
= &c
->verify_store
;
1199 X509_STORE_free(*pstore
);
1202 CRYPTO_add(&store
->references
, 1, CRYPTO_LOCK_X509_STORE
);