1 /* crypto/x509/x509_lu.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.]
61 #include <openssl/lhash.h>
62 #include <openssl/x509.h>
63 #include <openssl/x509v3.h>
66 X509_LOOKUP
*X509_LOOKUP_new(X509_LOOKUP_METHOD
*method
)
70 ret
=(X509_LOOKUP
*)OPENSSL_malloc(sizeof(X509_LOOKUP
));
71 if (ret
== NULL
) return NULL
;
76 ret
->method_data
=NULL
;
78 if ((method
->new_item
!= NULL
) && !method
->new_item(ret
))
86 void X509_LOOKUP_free(X509_LOOKUP
*ctx
)
88 if (ctx
== NULL
) return;
89 if ( (ctx
->method
!= NULL
) &&
90 (ctx
->method
->free
!= NULL
))
91 (*ctx
->method
->free
)(ctx
);
95 int X509_LOOKUP_init(X509_LOOKUP
*ctx
)
97 if (ctx
->method
== NULL
) return 0;
98 if (ctx
->method
->init
!= NULL
)
99 return ctx
->method
->init(ctx
);
104 int X509_LOOKUP_shutdown(X509_LOOKUP
*ctx
)
106 if (ctx
->method
== NULL
) return 0;
107 if (ctx
->method
->shutdown
!= NULL
)
108 return ctx
->method
->shutdown(ctx
);
113 int X509_LOOKUP_ctrl(X509_LOOKUP
*ctx
, int cmd
, const char *argc
, long argl
,
116 if (ctx
->method
== NULL
) return -1;
117 if (ctx
->method
->ctrl
!= NULL
)
118 return ctx
->method
->ctrl(ctx
,cmd
,argc
,argl
,ret
);
123 int X509_LOOKUP_by_subject(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
126 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_subject
== NULL
))
128 if (ctx
->skip
) return 0;
129 return ctx
->method
->get_by_subject(ctx
,type
,name
,ret
);
132 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
133 ASN1_INTEGER
*serial
, X509_OBJECT
*ret
)
135 if ((ctx
->method
== NULL
) ||
136 (ctx
->method
->get_by_issuer_serial
== NULL
))
138 return ctx
->method
->get_by_issuer_serial(ctx
,type
,name
,serial
,ret
);
141 int X509_LOOKUP_by_fingerprint(X509_LOOKUP
*ctx
, int type
,
142 unsigned char *bytes
, int len
, X509_OBJECT
*ret
)
144 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_fingerprint
== NULL
))
146 return ctx
->method
->get_by_fingerprint(ctx
,type
,bytes
,len
,ret
);
149 int X509_LOOKUP_by_alias(X509_LOOKUP
*ctx
, int type
, char *str
, int len
,
152 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_alias
== NULL
))
154 return ctx
->method
->get_by_alias(ctx
,type
,str
,len
,ret
);
158 static int x509_object_cmp(const X509_OBJECT
* const *a
, const X509_OBJECT
* const *b
)
162 ret
=((*a
)->type
- (*b
)->type
);
167 ret
=X509_subject_name_cmp((*a
)->data
.x509
,(*b
)->data
.x509
);
170 ret
=X509_CRL_cmp((*a
)->data
.crl
,(*b
)->data
.crl
);
179 X509_STORE
*X509_STORE_new(void)
183 if ((ret
=(X509_STORE
*)OPENSSL_malloc(sizeof(X509_STORE
))) == NULL
)
185 ret
->objs
= sk_X509_OBJECT_new(x509_object_cmp
);
187 ret
->get_cert_methods
=sk_X509_LOOKUP_new_null();
191 if ((ret
->param
= X509_VERIFY_PARAM_new()) == NULL
)
195 ret
->check_issued
= 0;
196 ret
->check_revocation
= 0;
200 ret
->lookup_certs
= 0;
201 ret
->lookup_crls
= 0;
204 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE
, ret
, &ret
->ex_data
))
206 sk_X509_OBJECT_free(ret
->objs
);
215 static void cleanup(X509_OBJECT
*a
)
217 if (a
->type
== X509_LU_X509
)
219 X509_free(a
->data
.x509
);
221 else if (a
->type
== X509_LU_CRL
)
223 X509_CRL_free(a
->data
.crl
);
233 void X509_STORE_free(X509_STORE
*vfy
)
236 STACK_OF(X509_LOOKUP
) *sk
;
242 i
=CRYPTO_add(&vfy
->references
,-1,CRYPTO_LOCK_X509_STORE
);
244 REF_PRINT("X509_STORE",vfy
);
250 fprintf(stderr
,"X509_STORE_free, bad reference count\n");
255 sk
=vfy
->get_cert_methods
;
256 for (i
=0; i
<sk_X509_LOOKUP_num(sk
); i
++)
258 lu
=sk_X509_LOOKUP_value(sk
,i
);
259 X509_LOOKUP_shutdown(lu
);
260 X509_LOOKUP_free(lu
);
262 sk_X509_LOOKUP_free(sk
);
263 sk_X509_OBJECT_pop_free(vfy
->objs
, cleanup
);
265 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE
, vfy
, &vfy
->ex_data
);
267 X509_VERIFY_PARAM_free(vfy
->param
);
271 X509_LOOKUP
*X509_STORE_add_lookup(X509_STORE
*v
, X509_LOOKUP_METHOD
*m
)
274 STACK_OF(X509_LOOKUP
) *sk
;
277 sk
=v
->get_cert_methods
;
278 for (i
=0; i
<sk_X509_LOOKUP_num(sk
); i
++)
280 lu
=sk_X509_LOOKUP_value(sk
,i
);
287 lu
=X509_LOOKUP_new(m
);
293 if (sk_X509_LOOKUP_push(v
->get_cert_methods
,lu
))
297 X509_LOOKUP_free(lu
);
303 int X509_STORE_get_by_subject(X509_STORE_CTX
*vs
, int type
, X509_NAME
*name
,
306 X509_STORE
*ctx
=vs
->ctx
;
308 X509_OBJECT stmp
,*tmp
;
311 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
312 tmp
=X509_OBJECT_retrieve_by_subject(ctx
->objs
,type
,name
);
313 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
315 if (tmp
== NULL
|| type
== X509_LU_CRL
)
317 for (i
=vs
->current_method
; i
<sk_X509_LOOKUP_num(ctx
->get_cert_methods
); i
++)
319 lu
=sk_X509_LOOKUP_value(ctx
->get_cert_methods
,i
);
320 j
=X509_LOOKUP_by_subject(lu
,type
,name
,&stmp
);
323 vs
->current_method
=j
;
332 vs
->current_method
=0;
337 /* if (ret->data.ptr != NULL)
338 X509_OBJECT_free_contents(ret); */
341 ret
->data
.ptr
=tmp
->data
.ptr
;
343 X509_OBJECT_up_ref_count(ret
);
348 int X509_STORE_add_cert(X509_STORE
*ctx
, X509
*x
)
353 if (x
== NULL
) return 0;
354 obj
=(X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
357 X509err(X509_F_X509_STORE_ADD_CERT
,ERR_R_MALLOC_FAILURE
);
360 obj
->type
=X509_LU_X509
;
363 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
365 X509_OBJECT_up_ref_count(obj
);
367 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
))
369 X509_OBJECT_free_contents(obj
);
371 X509err(X509_F_X509_STORE_ADD_CERT
,X509_R_CERT_ALREADY_IN_HASH_TABLE
);
374 else sk_X509_OBJECT_push(ctx
->objs
, obj
);
376 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
381 int X509_STORE_add_crl(X509_STORE
*ctx
, X509_CRL
*x
)
386 if (x
== NULL
) return 0;
387 obj
=(X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
390 X509err(X509_F_X509_STORE_ADD_CRL
,ERR_R_MALLOC_FAILURE
);
393 obj
->type
=X509_LU_CRL
;
396 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
398 X509_OBJECT_up_ref_count(obj
);
400 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
))
402 X509_OBJECT_free_contents(obj
);
404 X509err(X509_F_X509_STORE_ADD_CRL
,X509_R_CERT_ALREADY_IN_HASH_TABLE
);
407 else sk_X509_OBJECT_push(ctx
->objs
, obj
);
409 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
414 void X509_OBJECT_up_ref_count(X509_OBJECT
*a
)
419 CRYPTO_add(&a
->data
.x509
->references
,1,CRYPTO_LOCK_X509
);
422 CRYPTO_add(&a
->data
.crl
->references
,1,CRYPTO_LOCK_X509_CRL
);
427 void X509_OBJECT_free_contents(X509_OBJECT
*a
)
432 X509_free(a
->data
.x509
);
435 X509_CRL_free(a
->data
.crl
);
440 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT
) *h
, int type
,
441 X509_NAME
*name
, int *pnmatch
)
447 X509_CRL_INFO crl_info_s
;
454 stmp
.data
.x509
= &x509_s
;
455 x509_s
.cert_info
= &cinf_s
;
459 stmp
.data
.crl
= &crl_s
;
460 crl_s
.crl
= &crl_info_s
;
461 crl_info_s
.issuer
=name
;
468 idx
= sk_X509_OBJECT_find(h
,&stmp
);
469 if (idx
>= 0 && pnmatch
)
472 const X509_OBJECT
*tobj
, *pstmp
;
475 for (tidx
= idx
+ 1; tidx
< sk_X509_OBJECT_num(h
); tidx
++)
477 tobj
= sk_X509_OBJECT_value(h
, tidx
);
478 if (x509_object_cmp(&tobj
, &pstmp
))
487 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
490 return x509_object_idx_cnt(h
, type
, name
, NULL
);
493 X509_OBJECT
*X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
497 idx
= X509_OBJECT_idx_by_subject(h
, type
, name
);
498 if (idx
==-1) return NULL
;
499 return sk_X509_OBJECT_value(h
, idx
);
502 STACK_OF(X509
)* X509_STORE_get1_certs(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
508 sk
= sk_X509_new_null();
509 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
510 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_X509
, nm
, &cnt
);
513 /* Nothing found in cache: do lookup to possibly add new
517 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
518 if (!X509_STORE_get_by_subject(ctx
, X509_LU_X509
, nm
, &xobj
))
523 X509_OBJECT_free_contents(&xobj
);
524 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
525 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
,X509_LU_X509
,nm
, &cnt
);
528 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
533 for (i
= 0; i
< cnt
; i
++, idx
++)
535 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
537 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
538 if (!sk_X509_push(sk
, x
))
540 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
542 sk_X509_pop_free(sk
, X509_free
);
546 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
551 STACK_OF(X509_CRL
)* X509_STORE_get1_crls(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
554 STACK_OF(X509_CRL
) *sk
;
556 X509_OBJECT
*obj
, xobj
;
557 sk
= sk_X509_CRL_new_null();
558 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
559 /* Check cache first */
560 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_CRL
, nm
, &cnt
);
562 /* Always do lookup to possibly add new CRLs to cache
564 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
565 if (!X509_STORE_get_by_subject(ctx
, X509_LU_CRL
, nm
, &xobj
))
567 sk_X509_CRL_free(sk
);
570 X509_OBJECT_free_contents(&xobj
);
571 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
572 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
,X509_LU_CRL
, nm
, &cnt
);
575 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
576 sk_X509_CRL_free(sk
);
580 for (i
= 0; i
< cnt
; i
++, idx
++)
582 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
584 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509_CRL
);
585 if (!sk_X509_CRL_push(sk
, x
))
587 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
589 sk_X509_CRL_pop_free(sk
, X509_CRL_free
);
593 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
597 X509_OBJECT
*X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT
) *h
, X509_OBJECT
*x
)
601 idx
= sk_X509_OBJECT_find(h
, x
);
602 if (idx
== -1) return NULL
;
603 if ((x
->type
!= X509_LU_X509
) && (x
->type
!= X509_LU_CRL
))
604 return sk_X509_OBJECT_value(h
, idx
);
605 for (i
= idx
; i
< sk_X509_OBJECT_num(h
); i
++)
607 obj
= sk_X509_OBJECT_value(h
, i
);
608 if (x509_object_cmp((const X509_OBJECT
**)&obj
, (const X509_OBJECT
**)&x
))
610 if (x
->type
== X509_LU_X509
)
612 if (!X509_cmp(obj
->data
.x509
, x
->data
.x509
))
615 else if (x
->type
== X509_LU_CRL
)
617 if (!X509_CRL_match(obj
->data
.crl
, x
->data
.crl
))
628 * Try to get issuer certificate from store. Due to limitations
629 * of the API this can only retrieve a single certificate matching
630 * a given subject name. However it will fill the cache with all
631 * matching certificates, so we can examine the cache for all
635 * 1 lookup successful.
636 * 0 certificate not found.
637 * -1 some other error.
639 int X509_STORE_CTX_get1_issuer(X509
**issuer
, X509_STORE_CTX
*ctx
, X509
*x
)
642 X509_OBJECT obj
, *pobj
;
645 xn
=X509_get_issuer_name(x
);
646 ok
=X509_STORE_get_by_subject(ctx
,X509_LU_X509
,xn
,&obj
);
647 if (ok
!= X509_LU_X509
)
649 if (ok
== X509_LU_RETRY
)
651 X509_OBJECT_free_contents(&obj
);
652 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER
,X509_R_SHOULD_RETRY
);
655 else if (ok
!= X509_LU_FAIL
)
657 X509_OBJECT_free_contents(&obj
);
658 /* not good :-(, break anyway */
663 /* If certificate matches all OK */
664 if (ctx
->check_issued(ctx
, x
, obj
.data
.x509
))
666 if (x509_check_cert_time(ctx
, obj
.data
.x509
, 1))
668 *issuer
= obj
.data
.x509
;
672 X509_OBJECT_free_contents(&obj
);
674 /* Else find index of first cert accepted by 'check_issued' */
676 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
677 idx
= X509_OBJECT_idx_by_subject(ctx
->ctx
->objs
, X509_LU_X509
, xn
);
678 if (idx
!= -1) /* should be true as we've had at least one match */
680 /* Look through all matching certs for suitable issuer */
681 for (i
= idx
; i
< sk_X509_OBJECT_num(ctx
->ctx
->objs
); i
++)
683 pobj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, i
);
684 /* See if we've run past the matches */
685 if (pobj
->type
!= X509_LU_X509
)
687 if (X509_NAME_cmp(xn
, X509_get_subject_name(pobj
->data
.x509
)))
689 if (ctx
->check_issued(ctx
, x
, pobj
->data
.x509
))
691 *issuer
= pobj
->data
.x509
;
694 * If times check, exit with match,
695 * otherwise keep looking. Leave last
696 * match in issuer so we return nearest
697 * match if no certificate time is OK.
700 if (x509_check_cert_time(ctx
, *issuer
, 1))
705 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
707 CRYPTO_add(&(*issuer
)->references
,1,CRYPTO_LOCK_X509
);
711 int X509_STORE_set_flags(X509_STORE
*ctx
, unsigned long flags
)
713 return X509_VERIFY_PARAM_set_flags(ctx
->param
, flags
);
716 int X509_STORE_set_depth(X509_STORE
*ctx
, int depth
)
718 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
722 int X509_STORE_set_purpose(X509_STORE
*ctx
, int purpose
)
724 return X509_VERIFY_PARAM_set_purpose(ctx
->param
, purpose
);
727 int X509_STORE_set_trust(X509_STORE
*ctx
, int trust
)
729 return X509_VERIFY_PARAM_set_trust(ctx
->param
, trust
);
732 int X509_STORE_set1_param(X509_STORE
*ctx
, X509_VERIFY_PARAM
*param
)
734 return X509_VERIFY_PARAM_set1(ctx
->param
, param
);
737 void X509_STORE_set_verify_cb(X509_STORE
*ctx
,
738 int (*verify_cb
)(int, X509_STORE_CTX
*))
740 ctx
->verify_cb
= verify_cb
;
743 void X509_STORE_set_lookup_crls_cb(X509_STORE
*ctx
,
744 STACK_OF(X509_CRL
)* (*cb
)(X509_STORE_CTX
*ctx
, X509_NAME
*nm
))
746 ctx
->lookup_crls
= cb
;
749 X509_STORE
*X509_STORE_CTX_get0_store(X509_STORE_CTX
*ctx
)
754 IMPLEMENT_STACK_OF(X509_LOOKUP
)
755 IMPLEMENT_STACK_OF(X509_OBJECT
)