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
));
70 if (ret
== NULL
) return NULL
;
75 ret
->method_data
=NULL
;
77 if ((method
->new_item
!= NULL
) && !method
->new_item(ret
))
85 void X509_LOOKUP_free(X509_LOOKUP
*ctx
)
87 if (ctx
== NULL
) return;
88 if ( (ctx
->method
!= NULL
) &&
89 (ctx
->method
->free
!= NULL
))
90 ctx
->method
->free(ctx
);
94 int X509_LOOKUP_init(X509_LOOKUP
*ctx
)
96 if (ctx
->method
== NULL
) return 0;
97 if (ctx
->method
->init
!= NULL
)
98 return ctx
->method
->init(ctx
);
103 int X509_LOOKUP_shutdown(X509_LOOKUP
*ctx
)
105 if (ctx
->method
== NULL
) return 0;
106 if (ctx
->method
->shutdown
!= NULL
)
107 return ctx
->method
->shutdown(ctx
);
112 int X509_LOOKUP_ctrl(X509_LOOKUP
*ctx
, int cmd
, const char *argc
, long argl
,
115 if (ctx
->method
== NULL
) return -1;
116 if (ctx
->method
->ctrl
!= NULL
)
117 return ctx
->method
->ctrl(ctx
,cmd
,argc
,argl
,ret
);
122 int X509_LOOKUP_by_subject(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
125 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_subject
== NULL
))
127 if (ctx
->skip
) return 0;
128 return ctx
->method
->get_by_subject(ctx
,type
,name
,ret
);
131 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP
*ctx
, int type
, X509_NAME
*name
,
132 ASN1_INTEGER
*serial
, X509_OBJECT
*ret
)
134 if ((ctx
->method
== NULL
) ||
135 (ctx
->method
->get_by_issuer_serial
== NULL
))
137 return ctx
->method
->get_by_issuer_serial(ctx
,type
,name
,serial
,ret
);
140 int X509_LOOKUP_by_fingerprint(X509_LOOKUP
*ctx
, int type
,
141 unsigned char *bytes
, int len
, X509_OBJECT
*ret
)
143 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_fingerprint
== NULL
))
145 return ctx
->method
->get_by_fingerprint(ctx
,type
,bytes
,len
,ret
);
148 int X509_LOOKUP_by_alias(X509_LOOKUP
*ctx
, int type
, char *str
, int len
,
151 if ((ctx
->method
== NULL
) || (ctx
->method
->get_by_alias
== NULL
))
153 return ctx
->method
->get_by_alias(ctx
,type
,str
,len
,ret
);
157 static int x509_object_cmp(const X509_OBJECT
* const *a
, const X509_OBJECT
* const *b
)
161 ret
=((*a
)->type
- (*b
)->type
);
166 ret
=X509_subject_name_cmp((*a
)->data
.x509
,(*b
)->data
.x509
);
169 ret
=X509_CRL_cmp((*a
)->data
.crl
,(*b
)->data
.crl
);
178 X509_STORE
*X509_STORE_new(void)
182 if ((ret
=(X509_STORE
*)OPENSSL_malloc(sizeof(X509_STORE
))) == NULL
)
184 ret
->objs
= sk_X509_OBJECT_new(x509_object_cmp
);
186 ret
->get_cert_methods
=sk_X509_LOOKUP_new_null();
196 ret
->check_issued
= 0;
197 ret
->check_revocation
= 0;
203 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE
, ret
, &ret
->ex_data
);
209 static void cleanup(X509_OBJECT
*a
)
211 if (a
->type
== X509_LU_X509
)
213 X509_free(a
->data
.x509
);
215 else if (a
->type
== X509_LU_CRL
)
217 X509_CRL_free(a
->data
.crl
);
227 void X509_STORE_free(X509_STORE
*vfy
)
230 STACK_OF(X509_LOOKUP
) *sk
;
236 sk
=vfy
->get_cert_methods
;
237 for (i
=0; i
<sk_X509_LOOKUP_num(sk
); i
++)
239 lu
=sk_X509_LOOKUP_value(sk
,i
);
240 X509_LOOKUP_shutdown(lu
);
241 X509_LOOKUP_free(lu
);
243 sk_X509_LOOKUP_free(sk
);
244 sk_X509_OBJECT_pop_free(vfy
->objs
, cleanup
);
246 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE
, vfy
, &vfy
->ex_data
);
250 X509_LOOKUP
*X509_STORE_add_lookup(X509_STORE
*v
, X509_LOOKUP_METHOD
*m
)
253 STACK_OF(X509_LOOKUP
) *sk
;
256 sk
=v
->get_cert_methods
;
257 for (i
=0; i
<sk_X509_LOOKUP_num(sk
); i
++)
259 lu
=sk_X509_LOOKUP_value(sk
,i
);
266 lu
=X509_LOOKUP_new(m
);
272 if (sk_X509_LOOKUP_push(v
->get_cert_methods
,lu
))
276 X509_LOOKUP_free(lu
);
282 int X509_STORE_get_by_subject(X509_STORE_CTX
*vs
, int type
, X509_NAME
*name
,
285 X509_STORE
*ctx
=vs
->ctx
;
287 X509_OBJECT stmp
,*tmp
;
290 tmp
=X509_OBJECT_retrieve_by_subject(ctx
->objs
,type
,name
);
294 for (i
=vs
->current_method
; i
<sk_X509_LOOKUP_num(ctx
->get_cert_methods
); i
++)
296 lu
=sk_X509_LOOKUP_value(ctx
->get_cert_methods
,i
);
297 j
=X509_LOOKUP_by_subject(lu
,type
,name
,&stmp
);
300 vs
->current_method
=j
;
309 vs
->current_method
=0;
314 /* if (ret->data.ptr != NULL)
315 X509_OBJECT_free_contents(ret); */
318 ret
->data
.ptr
=tmp
->data
.ptr
;
320 X509_OBJECT_up_ref_count(ret
);
325 int X509_STORE_add_cert(X509_STORE
*ctx
, X509
*x
)
330 if (x
== NULL
) return 0;
331 obj
=(X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
334 X509err(X509_F_X509_STORE_ADD_CERT
,ERR_R_MALLOC_FAILURE
);
337 obj
->type
=X509_LU_X509
;
340 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
342 X509_OBJECT_up_ref_count(obj
);
345 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
))
347 X509_OBJECT_free_contents(obj
);
349 X509err(X509_F_X509_STORE_ADD_CERT
,X509_R_CERT_ALREADY_IN_HASH_TABLE
);
352 else sk_X509_OBJECT_push(ctx
->objs
, obj
);
354 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
359 int X509_STORE_add_crl(X509_STORE
*ctx
, X509_CRL
*x
)
364 if (x
== NULL
) return 0;
365 obj
=(X509_OBJECT
*)OPENSSL_malloc(sizeof(X509_OBJECT
));
368 X509err(X509_F_X509_STORE_ADD_CRL
,ERR_R_MALLOC_FAILURE
);
371 obj
->type
=X509_LU_CRL
;
374 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE
);
376 X509_OBJECT_up_ref_count(obj
);
378 if (X509_OBJECT_retrieve_match(ctx
->objs
, obj
))
380 X509_OBJECT_free_contents(obj
);
382 X509err(X509_F_X509_STORE_ADD_CRL
,X509_R_CERT_ALREADY_IN_HASH_TABLE
);
385 else sk_X509_OBJECT_push(ctx
->objs
, obj
);
387 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE
);
392 void X509_OBJECT_up_ref_count(X509_OBJECT
*a
)
397 CRYPTO_add(&a
->data
.x509
->references
,1,CRYPTO_LOCK_X509
);
400 CRYPTO_add(&a
->data
.crl
->references
,1,CRYPTO_LOCK_X509_CRL
);
405 void X509_OBJECT_free_contents(X509_OBJECT
*a
)
410 X509_free(a
->data
.x509
);
413 X509_CRL_free(a
->data
.crl
);
418 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
425 X509_CRL_INFO crl_info_s
;
431 stmp
.data
.x509
= &x509_s
;
432 x509_s
.cert_info
= &cinf_s
;
436 stmp
.data
.crl
= &crl_s
;
437 crl_s
.crl
= &crl_info_s
;
438 crl_info_s
.issuer
=name
;
445 return sk_X509_OBJECT_find(h
,&stmp
);
448 X509_OBJECT
*X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT
) *h
, int type
,
452 idx
= X509_OBJECT_idx_by_subject(h
, type
, name
);
453 if (idx
==-1) return NULL
;
454 return sk_X509_OBJECT_value(h
, idx
);
457 X509_OBJECT
*X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT
) *h
, X509_OBJECT
*x
)
461 idx
= sk_X509_OBJECT_find(h
, x
);
462 if (idx
== -1) return NULL
;
463 if (x
->type
!= X509_LU_X509
) return sk_X509_OBJECT_value(h
, idx
);
464 for (i
= idx
; i
< sk_X509_OBJECT_num(h
); i
++)
466 obj
= sk_X509_OBJECT_value(h
, i
);
467 if (x509_object_cmp((const X509_OBJECT
**)&obj
, (const X509_OBJECT
**)&x
))
469 if ((x
->type
!= X509_LU_X509
) || !X509_cmp(obj
->data
.x509
, x
->data
.x509
))
476 /* Try to get issuer certificate from store. Due to limitations
477 * of the API this can only retrieve a single certificate matching
478 * a given subject name. However it will fill the cache with all
479 * matching certificates, so we can examine the cache for all
483 * 1 lookup successful.
484 * 0 certificate not found.
485 * -1 some other error.
489 int X509_STORE_CTX_get1_issuer(X509
**issuer
, X509_STORE_CTX
*ctx
, X509
*x
)
492 X509_OBJECT obj
, *pobj
;
494 xn
=X509_get_issuer_name(x
);
495 ok
=X509_STORE_get_by_subject(ctx
,X509_LU_X509
,xn
,&obj
);
496 if (ok
!= X509_LU_X509
)
498 if (ok
== X509_LU_RETRY
)
500 X509_OBJECT_free_contents(&obj
);
501 X509err(X509_F_X509_VERIFY_CERT
,X509_R_SHOULD_RETRY
);
504 else if (ok
!= X509_LU_FAIL
)
506 X509_OBJECT_free_contents(&obj
);
507 /* not good :-(, break anyway */
512 /* If certificate matches all OK */
513 if (ctx
->check_issued(ctx
, x
, obj
.data
.x509
))
515 *issuer
= obj
.data
.x509
;
518 X509_OBJECT_free_contents(&obj
);
519 /* Else find index of first matching cert */
520 idx
= X509_OBJECT_idx_by_subject(ctx
->ctx
->objs
, X509_LU_X509
, xn
);
521 /* This shouldn't normally happen since we already have one match */
522 if (idx
== -1) return 0;
524 /* Look through all matching certificates for a suitable issuer */
525 for (i
= idx
; i
< sk_X509_OBJECT_num(ctx
->ctx
->objs
); i
++)
527 pobj
= sk_X509_OBJECT_value(ctx
->ctx
->objs
, i
);
528 /* See if we've ran out of matches */
529 if (pobj
->type
!= X509_LU_X509
) return 0;
530 if (X509_NAME_cmp(xn
, X509_get_subject_name(pobj
->data
.x509
))) return 0;
531 if (ctx
->check_issued(ctx
, x
, pobj
->data
.x509
))
533 *issuer
= pobj
->data
.x509
;
534 X509_OBJECT_up_ref_count(pobj
);
541 void X509_STORE_set_flags(X509_STORE
*ctx
, long flags
)
546 int X509_STORE_set_purpose(X509_STORE
*ctx
, int purpose
)
548 return X509_PURPOSE_set(&ctx
->purpose
, purpose
);
551 int X509_STORE_set_trust(X509_STORE
*ctx
, int trust
)
553 return X509_TRUST_set(&ctx
->trust
, trust
);
556 IMPLEMENT_STACK_OF(X509_LOOKUP
)
557 IMPLEMENT_STACK_OF(X509_OBJECT
)