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)