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>
65 X509_LOOKUP
*X509_LOOKUP_new(X509_LOOKUP_METHOD
*method
)
69 ret
= (X509_LOOKUP
*)OPENSSL_malloc(sizeof(X509_LOOKUP
));
76 ret
->method_data
= NULL
;
77 ret
->store_ctx
= NULL
;
78 if ((method
->new_item
!= NULL
) && !method
->new_item(ret
)) {
85 void X509_LOOKUP_free(X509_LOOKUP
*ctx
)
89 if ((ctx
->method
!= NULL
) && (ctx
->method
->free
!= NULL
))
90 (*ctx
->method
->free
) (ctx
);
94 int X509_LOOKUP_init(X509_LOOKUP
*ctx
)
96 if (ctx
->method
== NULL
)
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
)
108 if (ctx
->method
->shutdown
!= NULL
)
109 return ctx
->method
->shutdown(ctx
);
114 int X509_LOOKUP_ctrl(X509_LOOKUP
*ctx
, int cmd
, const char *argc
, long argl
,
117 if (ctx
->method
== NULL
)
119 if (ctx
->method
->ctrl
!= NULL
)
120 return ctx
->method
->ctrl(ctx
, cmd
, argc
, argl
, ret
);
125 int X509_LOOKUP_by_subject(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
128 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_subject
== NULL
))
132 return ctx
->method
->get_by_subject(ctx
, type
, name
, ret
);
135 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
136 ASN1_INTEGER
*serial
, X509_OBJECT
*ret
)
138 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_issuer_serial
== NULL
))
140 return ctx
->method
->get_by_issuer_serial(ctx
, type
, name
, serial
, ret
);
143 int X509_LOOKUP_by_fingerprint(X509_LOOKUP
*ctx
, int type
,
144 unsigned char *bytes
, int len
,
147 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_fingerprint
== NULL
))
149 return ctx
->method
->get_by_fingerprint(ctx
, type
, bytes
, len
, ret
);
152 int X509_LOOKUP_by_alias(X509_LOOKUP
*ctx
, int type
, char *str
, int len
,
155 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_alias
== NULL
))
157 return ctx
->method
->get_by_alias(ctx
, type
, str
, len
, ret
);
160 static int x509_object_cmp(const X509_OBJECT
*const *a
,
161 const X509_OBJECT
*const *b
)
165 ret
= ((*a
)->type
- (*b
)->type
);
168 switch ((*a
)->type
) {
170 ret
= X509_subject_name_cmp((*a
)->data
.x509
, (*b
)->data
.x509
);
173 ret
= X509_CRL_cmp((*a
)->data
.crl
, (*b
)->data
.crl
);
182 X509_STORE
*X509_STORE_new(void)
186 if ((ret
= (X509_STORE
*)OPENSSL_malloc(sizeof(X509_STORE
))) == NULL
)
188 if ((ret
->objs
= sk_X509_OBJECT_new(x509_object_cmp
)) == NULL
)
191 if ((ret
->get_cert_methods
= sk_X509_LOOKUP_new_null()) == NULL
)
196 if ((ret
->param
= X509_VERIFY_PARAM_new()) == NULL
)
200 ret
->check_issued
= 0;
201 ret
->check_revocation
= 0;
205 ret
->lookup_certs
= 0;
206 ret
->lookup_crls
= 0;
209 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE
, ret
, &ret
->ex_data
))
216 X509_VERIFY_PARAM_free(ret
->param
);
218 sk_X509_LOOKUP_free(ret
->get_cert_methods
);
220 sk_X509_OBJECT_free(ret
->objs
);
226 static void cleanup(X509_OBJECT
*a
)
230 if (a
->type
== X509_LU_X509
) {
231 X509_free(a
->data
.x509
);
232 } else if (a
->type
== X509_LU_CRL
) {
233 X509_CRL_free(a
->data
.crl
);
241 void X509_STORE_free(X509_STORE
*vfy
)
244 STACK_OF(X509_LOOKUP
) *sk
;
250 i
= CRYPTO_add(&vfy
->references
, -1, CRYPTO_LOCK_X509_STORE
);
252 REF_PRINT("X509_STORE", vfy
);
258 fprintf(stderr
, "X509_STORE_free, bad reference count\n");
263 sk
= vfy
->get_cert_methods
;
264 for (i
= 0; i
< sk_X509_LOOKUP_num(sk
); i
++) {
265 lu
= sk_X509_LOOKUP_value(sk
, i
);
266 X509_LOOKUP_shutdown(lu
);
267 X509_LOOKUP_free(lu
);
269 sk_X509_LOOKUP_free(sk
);
270 sk_X509_OBJECT_pop_free(vfy
->objs
, cleanup
);
272 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE
, vfy
, &vfy
->ex_data
);
274 X509_VERIFY_PARAM_free(vfy
->param
);
278 X509_LOOKUP
*X509_STORE_add_lookup(X509_STORE
*v
, X509_LOOKUP_METHOD
*m
)
281 STACK_OF(X509_LOOKUP
) *sk
;
284 sk
= v
->get_cert_methods
;
285 for (i
= 0; i
< sk_X509_LOOKUP_num(sk
); i
++) {
286 lu
= sk_X509_LOOKUP_value(sk
, i
);
287 if (m
== lu
->method
) {
292 lu
= X509_LOOKUP_new(m
);
297 if (sk_X509_LOOKUP_push(v
->get_cert_methods
, lu
))
300 X509_LOOKUP_free(lu
);
306 int X509_STORE_get_by_subject(X509_STORE_CTX
*vs
, int type
, X509_NAME
*name
,
309 X509_STORE
*ctx
= vs
->ctx
;
311 X509_OBJECT stmp
, *tmp
;
317 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
319 tmp
= X509_OBJECT_retrieve_by_subject(ctx
->objs
, type
, name
);
320 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
322 if (tmp
== NULL
|| type
== X509_LU_CRL
) {
323 for (i
= vs
->current_method
;
324 i
< sk_X509_LOOKUP_num(ctx
->get_cert_methods
); i
++) {
325 lu
= sk_X509_LOOKUP_value(ctx
->get_cert_methods
, i
);
326 j
= X509_LOOKUP_by_subject(lu
, type
, name
, &stmp
);
328 vs
->current_method
= j
;
335 vs
->current_method
= 0;
340 /*- if (ret->data.ptr != NULL)
341 X509_OBJECT_free_contents(ret); */
343 ret
->type
= tmp
->type
;
344 ret
->data
.ptr
= tmp
->data
.ptr
;
346 X509_OBJECT_up_ref_count(ret
);
351 int X509_STORE_add_cert(X509_STORE
*ctx
, X509
*x
)
358 obj
= (X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
360 X509err(X509_F_X509_STORE_ADD_CERT
, ERR_R_MALLOC_FAILURE
);
363 obj
->type
= X509_LU_X509
;
366 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
368 X509_OBJECT_up_ref_count(obj
);
370 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
)) {
371 X509_OBJECT_free_contents(obj
);
373 X509err(X509_F_X509_STORE_ADD_CERT
,
374 X509_R_CERT_ALREADY_IN_HASH_TABLE
);
376 } else if (!sk_X509_OBJECT_push(ctx
->objs
, obj
)) {
377 X509_OBJECT_free_contents(obj
);
379 X509err(X509_F_X509_STORE_ADD_CERT
, ERR_R_MALLOC_FAILURE
);
383 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
388 int X509_STORE_add_crl(X509_STORE
*ctx
, X509_CRL
*x
)
395 obj
= (X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
397 X509err(X509_F_X509_STORE_ADD_CRL
, ERR_R_MALLOC_FAILURE
);
400 obj
->type
= X509_LU_CRL
;
403 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
405 X509_OBJECT_up_ref_count(obj
);
407 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
)) {
408 X509_OBJECT_free_contents(obj
);
410 X509err(X509_F_X509_STORE_ADD_CRL
, X509_R_CERT_ALREADY_IN_HASH_TABLE
);
412 } else if (!sk_X509_OBJECT_push(ctx
->objs
, obj
)) {
413 X509_OBJECT_free_contents(obj
);
415 X509err(X509_F_X509_STORE_ADD_CRL
, ERR_R_MALLOC_FAILURE
);
419 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
424 void X509_OBJECT_up_ref_count(X509_OBJECT
*a
)
428 CRYPTO_add(&a
->data
.x509
->references
, 1, CRYPTO_LOCK_X509
);
431 CRYPTO_add(&a
->data
.crl
->references
, 1, CRYPTO_LOCK_X509_CRL
);
436 void X509_OBJECT_free_contents(X509_OBJECT
*a
)
440 X509_free(a
->data
.x509
);
443 X509_CRL_free(a
->data
.crl
);
448 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT
) *h
, int type
,
449 X509_NAME
*name
, int *pnmatch
)
455 X509_CRL_INFO crl_info_s
;
461 stmp
.data
.x509
= &x509_s
;
462 x509_s
.cert_info
= &cinf_s
;
463 cinf_s
.subject
= name
;
466 stmp
.data
.crl
= &crl_s
;
467 crl_s
.crl
= &crl_info_s
;
468 crl_info_s
.issuer
= name
;
475 idx
= sk_X509_OBJECT_find(h
, &stmp
);
476 if (idx
>= 0 && pnmatch
) {
478 const X509_OBJECT
*tobj
, *pstmp
;
481 for (tidx
= idx
+ 1; tidx
< sk_X509_OBJECT_num(h
); tidx
++) {
482 tobj
= sk_X509_OBJECT_value(h
, tidx
);
483 if (x509_object_cmp(&tobj
, &pstmp
))
491 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
494 return x509_object_idx_cnt(h
, type
, name
, NULL
);
497 X509_OBJECT
*X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT
) *h
,
498 int type
, X509_NAME
*name
)
501 idx
= X509_OBJECT_idx_by_subject(h
, type
, name
);
504 return sk_X509_OBJECT_value(h
, idx
);
507 STACK_OF(X509
) *X509_STORE_get1_certs(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
514 if (ctx
->ctx
== NULL
)
517 sk
= sk_X509_new_null();
518 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
519 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_X509
, nm
, &cnt
);
522 * Nothing found in cache: do lookup to possibly add new objects to
526 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
527 if (!X509_STORE_get_by_subject(ctx
, X509_LU_X509
, nm
, &xobj
)) {
531 X509_OBJECT_free_contents(&xobj
);
532 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
533 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_X509
, nm
, &cnt
);
535 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
540 for (i
= 0; i
< cnt
; i
++, idx
++) {
541 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
543 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
544 if (!sk_X509_push(sk
, x
)) {
545 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
547 sk_X509_pop_free(sk
, X509_free
);
551 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
556 STACK_OF(X509_CRL
) *X509_STORE_get1_crls(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
559 STACK_OF(X509_CRL
) *sk
;
561 X509_OBJECT
*obj
, xobj
;
564 if (ctx
->ctx
== NULL
)
567 sk
= sk_X509_CRL_new_null();
568 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
571 * Always do lookup to possibly add new CRLs to cache
573 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
574 if (!X509_STORE_get_by_subject(ctx
, X509_LU_CRL
, nm
, &xobj
)) {
575 sk_X509_CRL_free(sk
);
578 X509_OBJECT_free_contents(&xobj
);
579 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
580 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_CRL
, nm
, &cnt
);
582 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
583 sk_X509_CRL_free(sk
);
587 for (i
= 0; i
< cnt
; i
++, idx
++) {
588 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
590 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509_CRL
);
591 if (!sk_X509_CRL_push(sk
, x
)) {
592 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
594 sk_X509_CRL_pop_free(sk
, X509_CRL_free
);
598 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
602 X509_OBJECT
*X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT
) *h
,
607 idx
= sk_X509_OBJECT_find(h
, x
);
610 if ((x
->type
!= X509_LU_X509
) && (x
->type
!= X509_LU_CRL
))
611 return sk_X509_OBJECT_value(h
, idx
);
612 for (i
= idx
; i
< sk_X509_OBJECT_num(h
); i
++) {
613 obj
= sk_X509_OBJECT_value(h
, i
);
615 ((const X509_OBJECT
**)&obj
, (const X509_OBJECT
**)&x
))
617 if (x
->type
== X509_LU_X509
) {
618 if (!X509_cmp(obj
->data
.x509
, x
->data
.x509
))
620 } else if (x
->type
== X509_LU_CRL
) {
621 if (!X509_CRL_match(obj
->data
.crl
, x
->data
.crl
))
630 * Try to get issuer certificate from store. Due to limitations
631 * of the API this can only retrieve a single certificate matching
632 * a given subject name. However it will fill the cache with all
633 * matching certificates, so we can examine the cache for all
637 * 1 lookup successful.
638 * 0 certificate not found.
639 * -1 some other error.
641 int X509_STORE_CTX_get1_issuer(X509
**issuer
, X509_STORE_CTX
*ctx
, X509
*x
)
644 X509_OBJECT obj
, *pobj
;
646 xn
= X509_get_issuer_name(x
);
647 ok
= X509_STORE_get_by_subject(ctx
, X509_LU_X509
, xn
, &obj
);
648 if (ok
!= X509_LU_X509
) {
649 if (ok
== X509_LU_RETRY
) {
650 X509_OBJECT_free_contents(&obj
);
651 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER
, X509_R_SHOULD_RETRY
);
653 } else if (ok
!= X509_LU_FAIL
) {
654 X509_OBJECT_free_contents(&obj
);
655 /* not good :-(, break anyway */
660 /* If certificate matches all OK */
661 if (ctx
->check_issued(ctx
, x
, obj
.data
.x509
)) {
662 *issuer
= obj
.data
.x509
;
665 X509_OBJECT_free_contents(&obj
);
667 if (ctx
->ctx
== NULL
)
670 /* Else find index of first cert accepted by 'check_issued' */
672 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
673 idx
= X509_OBJECT_idx_by_subject(ctx
->ctx
->objs
, X509_LU_X509
, xn
);
674 if (idx
!= -1) { /* should be true as we've had at least one
676 /* Look through all matching certs for suitable issuer */
677 for (i
= idx
; i
< sk_X509_OBJECT_num(ctx
->ctx
->objs
); i
++) {
678 pobj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, i
);
679 /* See if we've run past the matches */
680 if (pobj
->type
!= X509_LU_X509
)
682 if (X509_NAME_cmp(xn
, X509_get_subject_name(pobj
->data
.x509
)))
684 if (ctx
->check_issued(ctx
, x
, pobj
->data
.x509
)) {
685 *issuer
= pobj
->data
.x509
;
686 X509_OBJECT_up_ref_count(pobj
);
692 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
696 int X509_STORE_set_flags(X509_STORE
*ctx
, unsigned long flags
)
698 return X509_VERIFY_PARAM_set_flags(ctx
->param
, flags
);
701 int X509_STORE_set_depth(X509_STORE
*ctx
, int depth
)
703 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
707 int X509_STORE_set_purpose(X509_STORE
*ctx
, int purpose
)
709 return X509_VERIFY_PARAM_set_purpose(ctx
->param
, purpose
);
712 int X509_STORE_set_trust(X509_STORE
*ctx
, int trust
)
714 return X509_VERIFY_PARAM_set_trust(ctx
->param
, trust
);
717 int X509_STORE_set1_param(X509_STORE
*ctx
, X509_VERIFY_PARAM
*param
)
719 return X509_VERIFY_PARAM_set1(ctx
->param
, param
);
722 void X509_STORE_set_verify_cb(X509_STORE
*ctx
,
723 int (*verify_cb
) (int, X509_STORE_CTX
*))
725 ctx
->verify_cb
= verify_cb
;
728 void X509_STORE_set_lookup_crls_cb(X509_STORE
*ctx
,
729 STACK_OF(X509_CRL
) *(*cb
) (X509_STORE_CTX
733 ctx
->lookup_crls
= cb
;
736 X509_STORE
*X509_STORE_CTX_get0_store(X509_STORE_CTX
*ctx
)
741 IMPLEMENT_STACK_OF(X509_LOOKUP
)
743 IMPLEMENT_STACK_OF(X509_OBJECT
)