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
));
77 ret
->method_data
= NULL
;
78 ret
->store_ctx
= NULL
;
79 if ((method
->new_item
!= NULL
) && !method
->new_item(ret
)) {
86 void X509_LOOKUP_free(X509_LOOKUP
*ctx
)
90 if ((ctx
->method
!= NULL
) && (ctx
->method
->free
!= NULL
))
91 (*ctx
->method
->free
) (ctx
);
95 int X509_LOOKUP_init(X509_LOOKUP
*ctx
)
97 if (ctx
->method
== NULL
)
99 if (ctx
->method
->init
!= NULL
)
100 return ctx
->method
->init(ctx
);
105 int X509_LOOKUP_shutdown(X509_LOOKUP
*ctx
)
107 if (ctx
->method
== NULL
)
109 if (ctx
->method
->shutdown
!= NULL
)
110 return ctx
->method
->shutdown(ctx
);
115 int X509_LOOKUP_ctrl(X509_LOOKUP
*ctx
, int cmd
, const char *argc
, long argl
,
118 if (ctx
->method
== NULL
)
120 if (ctx
->method
->ctrl
!= NULL
)
121 return ctx
->method
->ctrl(ctx
, cmd
, argc
, argl
, ret
);
126 int X509_LOOKUP_by_subject(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
129 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_subject
== NULL
))
133 return ctx
->method
->get_by_subject(ctx
, type
, name
, ret
);
136 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
137 ASN1_INTEGER
*serial
, X509_OBJECT
*ret
)
139 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_issuer_serial
== NULL
))
141 return ctx
->method
->get_by_issuer_serial(ctx
, type
, name
, serial
, ret
);
144 int X509_LOOKUP_by_fingerprint(X509_LOOKUP
*ctx
, int type
,
145 unsigned char *bytes
, int len
,
148 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_fingerprint
== NULL
))
150 return ctx
->method
->get_by_fingerprint(ctx
, type
, bytes
, len
, ret
);
153 int X509_LOOKUP_by_alias(X509_LOOKUP
*ctx
, int type
, char *str
, int len
,
156 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_alias
== NULL
))
158 return ctx
->method
->get_by_alias(ctx
, type
, str
, len
, ret
);
161 static int x509_object_cmp(const X509_OBJECT
*const *a
,
162 const X509_OBJECT
*const *b
)
166 ret
= ((*a
)->type
- (*b
)->type
);
169 switch ((*a
)->type
) {
171 ret
= X509_subject_name_cmp((*a
)->data
.x509
, (*b
)->data
.x509
);
174 ret
= X509_CRL_cmp((*a
)->data
.crl
, (*b
)->data
.crl
);
183 X509_STORE
*X509_STORE_new(void)
187 if ((ret
= (X509_STORE
*)OPENSSL_malloc(sizeof(X509_STORE
))) == NULL
)
189 ret
->objs
= sk_X509_OBJECT_new(x509_object_cmp
);
191 ret
->get_cert_methods
= sk_X509_LOOKUP_new_null();
195 if ((ret
->param
= X509_VERIFY_PARAM_new()) == NULL
)
199 ret
->check_issued
= 0;
200 ret
->check_revocation
= 0;
204 ret
->lookup_certs
= 0;
205 ret
->lookup_crls
= 0;
208 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE
, ret
, &ret
->ex_data
)) {
209 sk_X509_OBJECT_free(ret
->objs
);
218 static void cleanup(X509_OBJECT
*a
)
220 if (a
->type
== X509_LU_X509
) {
221 X509_free(a
->data
.x509
);
222 } else if (a
->type
== X509_LU_CRL
) {
223 X509_CRL_free(a
->data
.crl
);
231 void X509_STORE_free(X509_STORE
*vfy
)
234 STACK_OF(X509_LOOKUP
) *sk
;
240 i
= CRYPTO_add(&vfy
->references
, -1, CRYPTO_LOCK_X509_STORE
);
242 REF_PRINT("X509_STORE", vfy
);
248 fprintf(stderr
, "X509_STORE_free, bad reference count\n");
253 sk
= vfy
->get_cert_methods
;
254 for (i
= 0; i
< sk_X509_LOOKUP_num(sk
); i
++) {
255 lu
= sk_X509_LOOKUP_value(sk
, i
);
256 X509_LOOKUP_shutdown(lu
);
257 X509_LOOKUP_free(lu
);
259 sk_X509_LOOKUP_free(sk
);
260 sk_X509_OBJECT_pop_free(vfy
->objs
, cleanup
);
262 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE
, vfy
, &vfy
->ex_data
);
264 X509_VERIFY_PARAM_free(vfy
->param
);
268 X509_LOOKUP
*X509_STORE_add_lookup(X509_STORE
*v
, X509_LOOKUP_METHOD
*m
)
271 STACK_OF(X509_LOOKUP
) *sk
;
274 sk
= v
->get_cert_methods
;
275 for (i
= 0; i
< sk_X509_LOOKUP_num(sk
); i
++) {
276 lu
= sk_X509_LOOKUP_value(sk
, i
);
277 if (m
== lu
->method
) {
282 lu
= X509_LOOKUP_new(m
);
287 if (sk_X509_LOOKUP_push(v
->get_cert_methods
, lu
))
290 X509_LOOKUP_free(lu
);
296 int X509_STORE_get_by_subject(X509_STORE_CTX
*vs
, int type
, X509_NAME
*name
,
299 X509_STORE
*ctx
= vs
->ctx
;
301 X509_OBJECT stmp
, *tmp
;
304 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
305 tmp
= X509_OBJECT_retrieve_by_subject(ctx
->objs
, type
, name
);
306 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
308 if (tmp
== NULL
|| type
== X509_LU_CRL
) {
309 for (i
= vs
->current_method
;
310 i
< sk_X509_LOOKUP_num(ctx
->get_cert_methods
); i
++) {
311 lu
= sk_X509_LOOKUP_value(ctx
->get_cert_methods
, i
);
312 j
= X509_LOOKUP_by_subject(lu
, type
, name
, &stmp
);
314 vs
->current_method
= j
;
321 vs
->current_method
= 0;
326 /*- if (ret->data.ptr != NULL)
327 X509_OBJECT_free_contents(ret); */
329 ret
->type
= tmp
->type
;
330 ret
->data
.ptr
= tmp
->data
.ptr
;
332 X509_OBJECT_up_ref_count(ret
);
337 int X509_STORE_add_cert(X509_STORE
*ctx
, X509
*x
)
344 obj
= (X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
346 X509err(X509_F_X509_STORE_ADD_CERT
, ERR_R_MALLOC_FAILURE
);
349 obj
->type
= X509_LU_X509
;
352 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
354 X509_OBJECT_up_ref_count(obj
);
356 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
)) {
357 X509_OBJECT_free_contents(obj
);
359 X509err(X509_F_X509_STORE_ADD_CERT
,
360 X509_R_CERT_ALREADY_IN_HASH_TABLE
);
363 sk_X509_OBJECT_push(ctx
->objs
, obj
);
365 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
370 int X509_STORE_add_crl(X509_STORE
*ctx
, X509_CRL
*x
)
377 obj
= (X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
379 X509err(X509_F_X509_STORE_ADD_CRL
, ERR_R_MALLOC_FAILURE
);
382 obj
->type
= X509_LU_CRL
;
385 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
387 X509_OBJECT_up_ref_count(obj
);
389 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
)) {
390 X509_OBJECT_free_contents(obj
);
392 X509err(X509_F_X509_STORE_ADD_CRL
, X509_R_CERT_ALREADY_IN_HASH_TABLE
);
395 sk_X509_OBJECT_push(ctx
->objs
, obj
);
397 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
402 void X509_OBJECT_up_ref_count(X509_OBJECT
*a
)
406 CRYPTO_add(&a
->data
.x509
->references
, 1, CRYPTO_LOCK_X509
);
409 CRYPTO_add(&a
->data
.crl
->references
, 1, CRYPTO_LOCK_X509_CRL
);
414 void X509_OBJECT_free_contents(X509_OBJECT
*a
)
418 X509_free(a
->data
.x509
);
421 X509_CRL_free(a
->data
.crl
);
426 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT
) *h
, int type
,
427 X509_NAME
*name
, int *pnmatch
)
433 X509_CRL_INFO crl_info_s
;
439 stmp
.data
.x509
= &x509_s
;
440 x509_s
.cert_info
= &cinf_s
;
441 cinf_s
.subject
= name
;
444 stmp
.data
.crl
= &crl_s
;
445 crl_s
.crl
= &crl_info_s
;
446 crl_info_s
.issuer
= name
;
453 idx
= sk_X509_OBJECT_find(h
, &stmp
);
454 if (idx
>= 0 && pnmatch
) {
456 const X509_OBJECT
*tobj
, *pstmp
;
459 for (tidx
= idx
+ 1; tidx
< sk_X509_OBJECT_num(h
); tidx
++) {
460 tobj
= sk_X509_OBJECT_value(h
, tidx
);
461 if (x509_object_cmp(&tobj
, &pstmp
))
469 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
472 return x509_object_idx_cnt(h
, type
, name
, NULL
);
475 X509_OBJECT
*X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT
) *h
,
476 int type
, X509_NAME
*name
)
479 idx
= X509_OBJECT_idx_by_subject(h
, type
, name
);
482 return sk_X509_OBJECT_value(h
, idx
);
485 STACK_OF(X509
) *X509_STORE_get1_certs(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
491 sk
= sk_X509_new_null();
492 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
493 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_X509
, nm
, &cnt
);
496 * Nothing found in cache: do lookup to possibly add new objects to
500 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
501 if (!X509_STORE_get_by_subject(ctx
, X509_LU_X509
, nm
, &xobj
)) {
505 X509_OBJECT_free_contents(&xobj
);
506 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
507 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_X509
, nm
, &cnt
);
509 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
514 for (i
= 0; i
< cnt
; i
++, idx
++) {
515 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
517 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509
);
518 if (!sk_X509_push(sk
, x
)) {
519 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
521 sk_X509_pop_free(sk
, X509_free
);
525 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
530 STACK_OF(X509_CRL
) *X509_STORE_get1_crls(X509_STORE_CTX
*ctx
, X509_NAME
*nm
)
533 STACK_OF(X509_CRL
) *sk
;
535 X509_OBJECT
*obj
, xobj
;
536 sk
= sk_X509_CRL_new_null();
537 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
538 /* Check cache first */
539 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_CRL
, nm
, &cnt
);
542 * Always do lookup to possibly add new CRLs to cache
544 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
545 if (!X509_STORE_get_by_subject(ctx
, X509_LU_CRL
, nm
, &xobj
)) {
546 sk_X509_CRL_free(sk
);
549 X509_OBJECT_free_contents(&xobj
);
550 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
551 idx
= x509_object_idx_cnt(ctx
->ctx
->objs
, X509_LU_CRL
, nm
, &cnt
);
553 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
554 sk_X509_CRL_free(sk
);
558 for (i
= 0; i
< cnt
; i
++, idx
++) {
559 obj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, idx
);
561 CRYPTO_add(&x
->references
, 1, CRYPTO_LOCK_X509_CRL
);
562 if (!sk_X509_CRL_push(sk
, x
)) {
563 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
565 sk_X509_CRL_pop_free(sk
, X509_CRL_free
);
569 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
573 X509_OBJECT
*X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT
) *h
,
578 idx
= sk_X509_OBJECT_find(h
, x
);
581 if ((x
->type
!= X509_LU_X509
) && (x
->type
!= X509_LU_CRL
))
582 return sk_X509_OBJECT_value(h
, idx
);
583 for (i
= idx
; i
< sk_X509_OBJECT_num(h
); i
++) {
584 obj
= sk_X509_OBJECT_value(h
, i
);
586 ((const X509_OBJECT
**)&obj
, (const X509_OBJECT
**)&x
))
588 if (x
->type
== X509_LU_X509
) {
589 if (!X509_cmp(obj
->data
.x509
, x
->data
.x509
))
591 } else if (x
->type
== X509_LU_CRL
) {
592 if (!X509_CRL_match(obj
->data
.crl
, x
->data
.crl
))
601 * Try to get issuer certificate from store. Due to limitations
602 * of the API this can only retrieve a single certificate matching
603 * a given subject name. However it will fill the cache with all
604 * matching certificates, so we can examine the cache for all
608 * 1 lookup successful.
609 * 0 certificate not found.
610 * -1 some other error.
612 int X509_STORE_CTX_get1_issuer(X509
**issuer
, X509_STORE_CTX
*ctx
, X509
*x
)
615 X509_OBJECT obj
, *pobj
;
618 xn
= X509_get_issuer_name(x
);
619 ok
= X509_STORE_get_by_subject(ctx
, X509_LU_X509
, xn
, &obj
);
620 if (ok
!= X509_LU_X509
) {
621 if (ok
== X509_LU_RETRY
) {
622 X509_OBJECT_free_contents(&obj
);
623 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER
, X509_R_SHOULD_RETRY
);
625 } else if (ok
!= X509_LU_FAIL
) {
626 X509_OBJECT_free_contents(&obj
);
627 /* not good :-(, break anyway */
632 /* If certificate matches all OK */
633 if (ctx
->check_issued(ctx
, x
, obj
.data
.x509
)) {
634 if (x509_check_cert_time(ctx
, obj
.data
.x509
, 1)) {
635 *issuer
= obj
.data
.x509
;
639 X509_OBJECT_free_contents(&obj
);
641 /* Else find index of first cert accepted by 'check_issued' */
643 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
644 idx
= X509_OBJECT_idx_by_subject(ctx
->ctx
->objs
, X509_LU_X509
, xn
);
645 if (idx
!= -1) { /* should be true as we've had at least one
647 /* Look through all matching certs for suitable issuer */
648 for (i
= idx
; i
< sk_X509_OBJECT_num(ctx
->ctx
->objs
); i
++) {
649 pobj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, i
);
650 /* See if we've run past the matches */
651 if (pobj
->type
!= X509_LU_X509
)
653 if (X509_NAME_cmp(xn
, X509_get_subject_name(pobj
->data
.x509
)))
655 if (ctx
->check_issued(ctx
, x
, pobj
->data
.x509
)) {
656 *issuer
= pobj
->data
.x509
;
659 * If times check, exit with match,
660 * otherwise keep looking. Leave last
661 * match in issuer so we return nearest
662 * match if no certificate time is OK.
665 if (x509_check_cert_time(ctx
, *issuer
, 1))
670 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
672 CRYPTO_add(&(*issuer
)->references
, 1, CRYPTO_LOCK_X509
);
676 int X509_STORE_set_flags(X509_STORE
*ctx
, unsigned long flags
)
678 return X509_VERIFY_PARAM_set_flags(ctx
->param
, flags
);
681 int X509_STORE_set_depth(X509_STORE
*ctx
, int depth
)
683 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
687 int X509_STORE_set_purpose(X509_STORE
*ctx
, int purpose
)
689 return X509_VERIFY_PARAM_set_purpose(ctx
->param
, purpose
);
692 int X509_STORE_set_trust(X509_STORE
*ctx
, int trust
)
694 return X509_VERIFY_PARAM_set_trust(ctx
->param
, trust
);
697 int X509_STORE_set1_param(X509_STORE
*ctx
, X509_VERIFY_PARAM
*param
)
699 return X509_VERIFY_PARAM_set1(ctx
->param
, param
);
702 void X509_STORE_set_verify_cb(X509_STORE
*ctx
,
703 int (*verify_cb
) (int, X509_STORE_CTX
*))
705 ctx
->verify_cb
= verify_cb
;
708 void X509_STORE_set_lookup_crls_cb(X509_STORE
*ctx
,
709 STACK_OF(X509_CRL
) *(*cb
) (X509_STORE_CTX
713 ctx
->lookup_crls
= cb
;
716 X509_STORE
*X509_STORE_CTX_get0_store(X509_STORE_CTX
*ctx
)