1/* crypto/x509/x509_lu.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/lhash.h>
62#include <openssl/x509.h>
63#include <openssl/x509v3.h>
64
65X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
66	{
67	X509_LOOKUP *ret;
68
69	ret=(X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
70	if (ret == NULL) return NULL;
71
72	ret->init=0;
73	ret->skip=0;
74	ret->method=method;
75	ret->method_data=NULL;
76	ret->store_ctx=NULL;
77	if ((method->new_item != NULL) && !method->new_item(ret))
78		{
79		OPENSSL_free(ret);
80		return NULL;
81		}
82	return ret;
83	}
84
85void X509_LOOKUP_free(X509_LOOKUP *ctx)
86	{
87	if (ctx == NULL) return;
88	if (	(ctx->method != NULL) &&
89		(ctx->method->free != NULL))
90		(*ctx->method->free)(ctx);
91	OPENSSL_free(ctx);
92	}
93
94int X509_LOOKUP_init(X509_LOOKUP *ctx)
95	{
96	if (ctx->method == NULL) return 0;
97	if (ctx->method->init != NULL)
98		return ctx->method->init(ctx);
99	else
100		return 1;
101	}
102
103int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
104	{
105	if (ctx->method == NULL) return 0;
106	if (ctx->method->shutdown != NULL)
107		return ctx->method->shutdown(ctx);
108	else
109		return 1;
110	}
111
112int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
113	     char **ret)
114	{
115	if (ctx->method == NULL) return -1;
116	if (ctx->method->ctrl != NULL)
117		return ctx->method->ctrl(ctx,cmd,argc,argl,ret);
118	else
119		return 1;
120	}
121
122int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
123	     X509_OBJECT *ret)
124	{
125	if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
126		return X509_LU_FAIL;
127	if (ctx->skip) return 0;
128	return ctx->method->get_by_subject(ctx,type,name,ret);
129	}
130
131int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
132	     ASN1_INTEGER *serial, X509_OBJECT *ret)
133	{
134	if ((ctx->method == NULL) ||
135		(ctx->method->get_by_issuer_serial == NULL))
136		return X509_LU_FAIL;
137	return ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret);
138	}
139
140int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
141	     unsigned char *bytes, int len, X509_OBJECT *ret)
142	{
143	if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
144		return X509_LU_FAIL;
145	return ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret);
146	}
147
148int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
149	     X509_OBJECT *ret)
150	{
151	if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
152		return X509_LU_FAIL;
153	return ctx->method->get_by_alias(ctx,type,str,len,ret);
154	}
155
156
157static int x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b)
158  	{
159 	int ret;
160
161 	ret=((*a)->type - (*b)->type);
162 	if (ret) return ret;
163 	switch ((*a)->type)
164 		{
165 	case X509_LU_X509:
166 		ret=X509_subject_name_cmp((*a)->data.x509,(*b)->data.x509);
167 		break;
168 	case X509_LU_CRL:
169 		ret=X509_CRL_cmp((*a)->data.crl,(*b)->data.crl);
170 		break;
171	default:
172		/* abort(); */
173		return 0;
174		}
175	return ret;
176	}
177
178X509_STORE *X509_STORE_new(void)
179	{
180	X509_STORE *ret;
181
182	if ((ret=(X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
183		return NULL;
184	ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
185	ret->cache=1;
186	ret->get_cert_methods=sk_X509_LOOKUP_new_null();
187	ret->verify=0;
188	ret->verify_cb=0;
189
190	if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
191		return NULL;
192
193	ret->get_issuer = 0;
194	ret->check_issued = 0;
195	ret->check_revocation = 0;
196	ret->get_crl = 0;
197	ret->check_crl = 0;
198	ret->cert_crl = 0;
199	ret->lookup_certs = 0;
200	ret->lookup_crls = 0;
201	ret->cleanup = 0;
202
203	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
204		{
205		sk_X509_OBJECT_free(ret->objs);
206		OPENSSL_free(ret);
207		return NULL;
208		}
209
210	ret->references=1;
211	return ret;
212	}
213
214static void cleanup(X509_OBJECT *a)
215	{
216	if (a->type == X509_LU_X509)
217		{
218		X509_free(a->data.x509);
219		}
220	else if (a->type == X509_LU_CRL)
221		{
222		X509_CRL_free(a->data.crl);
223		}
224	else
225		{
226		/* abort(); */
227		}
228
229	OPENSSL_free(a);
230	}
231
232void X509_STORE_free(X509_STORE *vfy)
233	{
234	int i;
235	STACK_OF(X509_LOOKUP) *sk;
236	X509_LOOKUP *lu;
237
238	if (vfy == NULL)
239	    return;
240
241	sk=vfy->get_cert_methods;
242	for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
243		{
244		lu=sk_X509_LOOKUP_value(sk,i);
245		X509_LOOKUP_shutdown(lu);
246		X509_LOOKUP_free(lu);
247		}
248	sk_X509_LOOKUP_free(sk);
249	sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
250
251	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
252	if (vfy->param)
253		X509_VERIFY_PARAM_free(vfy->param);
254	OPENSSL_free(vfy);
255	}
256
257X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
258	{
259	int i;
260	STACK_OF(X509_LOOKUP) *sk;
261	X509_LOOKUP *lu;
262
263	sk=v->get_cert_methods;
264	for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
265		{
266		lu=sk_X509_LOOKUP_value(sk,i);
267		if (m == lu->method)
268			{
269			return lu;
270			}
271		}
272	/* a new one */
273	lu=X509_LOOKUP_new(m);
274	if (lu == NULL)
275		return NULL;
276	else
277		{
278		lu->store_ctx=v;
279		if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
280			return lu;
281		else
282			{
283			X509_LOOKUP_free(lu);
284			return NULL;
285			}
286		}
287	}
288
289int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
290	     X509_OBJECT *ret)
291	{
292	X509_STORE *ctx=vs->ctx;
293	X509_LOOKUP *lu;
294	X509_OBJECT stmp,*tmp;
295	int i,j;
296
297	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
298	tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
299	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
300
301	if (tmp == NULL || type == X509_LU_CRL)
302		{
303		for (i=vs->current_method; i<sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
304			{
305			lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
306			j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
307			if (j < 0)
308				{
309				vs->current_method=j;
310				return j;
311				}
312			else if (j)
313				{
314				tmp= &stmp;
315				break;
316				}
317			}
318		vs->current_method=0;
319		if (tmp == NULL)
320			return 0;
321		}
322
323/*	if (ret->data.ptr != NULL)
324		X509_OBJECT_free_contents(ret); */
325
326	ret->type=tmp->type;
327	ret->data.ptr=tmp->data.ptr;
328
329	X509_OBJECT_up_ref_count(ret);
330
331	return 1;
332	}
333
334int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
335	{
336	X509_OBJECT *obj;
337	int ret=1;
338
339	if (x == NULL) return 0;
340	obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
341	if (obj == NULL)
342		{
343		X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
344		return 0;
345		}
346	obj->type=X509_LU_X509;
347	obj->data.x509=x;
348
349	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
350
351	X509_OBJECT_up_ref_count(obj);
352
353	if (X509_OBJECT_retrieve_match(ctx->objs, obj))
354		{
355		X509_OBJECT_free_contents(obj);
356		OPENSSL_free(obj);
357		X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
358		ret=0;
359		}
360	else sk_X509_OBJECT_push(ctx->objs, obj);
361
362	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
363
364	return ret;
365	}
366
367int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
368	{
369	X509_OBJECT *obj;
370	int ret=1;
371
372	if (x == NULL) return 0;
373	obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
374	if (obj == NULL)
375		{
376		X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
377		return 0;
378		}
379	obj->type=X509_LU_CRL;
380	obj->data.crl=x;
381
382	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
383
384	X509_OBJECT_up_ref_count(obj);
385
386	if (X509_OBJECT_retrieve_match(ctx->objs, obj))
387		{
388		X509_OBJECT_free_contents(obj);
389		OPENSSL_free(obj);
390		X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
391		ret=0;
392		}
393	else sk_X509_OBJECT_push(ctx->objs, obj);
394
395	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
396
397	return ret;
398	}
399
400void X509_OBJECT_up_ref_count(X509_OBJECT *a)
401	{
402	switch (a->type)
403		{
404	case X509_LU_X509:
405		CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
406		break;
407	case X509_LU_CRL:
408		CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
409		break;
410		}
411	}
412
413void X509_OBJECT_free_contents(X509_OBJECT *a)
414	{
415	switch (a->type)
416		{
417	case X509_LU_X509:
418		X509_free(a->data.x509);
419		break;
420	case X509_LU_CRL:
421		X509_CRL_free(a->data.crl);
422		break;
423		}
424	}
425
426static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
427	     X509_NAME *name, int *pnmatch)
428	{
429	X509_OBJECT stmp;
430	X509 x509_s;
431	X509_CINF cinf_s;
432	X509_CRL crl_s;
433	X509_CRL_INFO crl_info_s;
434	int idx;
435
436	stmp.type=type;
437	switch (type)
438		{
439	case X509_LU_X509:
440		stmp.data.x509= &x509_s;
441		x509_s.cert_info= &cinf_s;
442		cinf_s.subject=name;
443		break;
444	case X509_LU_CRL:
445		stmp.data.crl= &crl_s;
446		crl_s.crl= &crl_info_s;
447		crl_info_s.issuer=name;
448		break;
449	default:
450		/* abort(); */
451		return -1;
452		}
453
454	idx = sk_X509_OBJECT_find(h,&stmp);
455	if (idx >= 0 && pnmatch)
456		{
457		int tidx;
458		const X509_OBJECT *tobj, *pstmp;
459		*pnmatch = 1;
460		pstmp = &stmp;
461		for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++)
462			{
463			tobj = sk_X509_OBJECT_value(h, tidx);
464			if (x509_object_cmp(&tobj, &pstmp))
465				break;
466			(*pnmatch)++;
467			}
468		}
469	return idx;
470	}
471
472
473int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
474	     X509_NAME *name)
475	{
476	return x509_object_idx_cnt(h, type, name, NULL);
477	}
478
479X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
480	     X509_NAME *name)
481	{
482	int idx;
483	idx = X509_OBJECT_idx_by_subject(h, type, name);
484	if (idx==-1) return NULL;
485	return sk_X509_OBJECT_value(h, idx);
486	}
487
488STACK_OF(X509)* X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
489	{
490	int i, idx, cnt;
491	STACK_OF(X509) *sk;
492	X509 *x;
493	X509_OBJECT *obj;
494	sk = sk_X509_new_null();
495	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
496	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
497	if (idx < 0)
498		{
499		/* Nothing found in cache: do lookup to possibly add new
500		 * objects to cache
501		 */
502		X509_OBJECT xobj;
503		CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
504		if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj))
505			{
506			sk_X509_free(sk);
507			return NULL;
508			}
509		X509_OBJECT_free_contents(&xobj);
510		CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
511		idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_X509,nm, &cnt);
512		if (idx < 0)
513			{
514			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
515			sk_X509_free(sk);
516			return NULL;
517			}
518		}
519	for (i = 0; i < cnt; i++, idx++)
520		{
521		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
522		x = obj->data.x509;
523		CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
524		if (!sk_X509_push(sk, x))
525			{
526			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
527			X509_free(x);
528			sk_X509_pop_free(sk, X509_free);
529			return NULL;
530			}
531		}
532	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
533	return sk;
534
535	}
536
537STACK_OF(X509_CRL)* X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
538	{
539	int i, idx, cnt;
540	STACK_OF(X509_CRL) *sk;
541	X509_CRL *x;
542	X509_OBJECT *obj, xobj;
543	sk = sk_X509_CRL_new_null();
544	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
545	/* Check cache first */
546	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
547
548	/* Always do lookup to possibly add new CRLs to cache
549	 */
550	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
551	if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj))
552		{
553		sk_X509_CRL_free(sk);
554		return NULL;
555		}
556	X509_OBJECT_free_contents(&xobj);
557	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
558	idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_CRL, nm, &cnt);
559	if (idx < 0)
560		{
561		CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
562		sk_X509_CRL_free(sk);
563		return NULL;
564		}
565
566	for (i = 0; i < cnt; i++, idx++)
567		{
568		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
569		x = obj->data.crl;
570		CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
571		if (!sk_X509_CRL_push(sk, x))
572			{
573			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
574			X509_CRL_free(x);
575			sk_X509_CRL_pop_free(sk, X509_CRL_free);
576			return NULL;
577			}
578		}
579	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
580	return sk;
581	}
582
583X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
584	{
585	int idx, i;
586	X509_OBJECT *obj;
587	idx = sk_X509_OBJECT_find(h, x);
588	if (idx == -1) return NULL;
589	if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
590		return sk_X509_OBJECT_value(h, idx);
591	for (i = idx; i < sk_X509_OBJECT_num(h); i++)
592		{
593		obj = sk_X509_OBJECT_value(h, i);
594		if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
595			return NULL;
596		if (x->type == X509_LU_X509)
597			{
598			if (!X509_cmp(obj->data.x509, x->data.x509))
599				return obj;
600			}
601		else if (x->type == X509_LU_CRL)
602			{
603			if (!X509_CRL_match(obj->data.crl, x->data.crl))
604				return obj;
605			}
606		else
607			return obj;
608		}
609	return NULL;
610	}
611
612
613/* Try to get issuer certificate from store. Due to limitations
614 * of the API this can only retrieve a single certificate matching
615 * a given subject name. However it will fill the cache with all
616 * matching certificates, so we can examine the cache for all
617 * matches.
618 *
619 * Return values are:
620 *  1 lookup successful.
621 *  0 certificate not found.
622 * -1 some other error.
623 */
624int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
625	{
626	X509_NAME *xn;
627	X509_OBJECT obj, *pobj;
628	int i, ok, idx, ret;
629	xn=X509_get_issuer_name(x);
630	ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
631	if (ok != X509_LU_X509)
632		{
633		if (ok == X509_LU_RETRY)
634			{
635			X509_OBJECT_free_contents(&obj);
636			X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,X509_R_SHOULD_RETRY);
637			return -1;
638			}
639		else if (ok != X509_LU_FAIL)
640			{
641			X509_OBJECT_free_contents(&obj);
642			/* not good :-(, break anyway */
643			return -1;
644			}
645		return 0;
646		}
647	/* If certificate matches all OK */
648	if (ctx->check_issued(ctx, x, obj.data.x509))
649		{
650		*issuer = obj.data.x509;
651		return 1;
652		}
653	X509_OBJECT_free_contents(&obj);
654
655	/* Else find index of first cert accepted by 'check_issued' */
656	ret = 0;
657	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
658	idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
659	if (idx != -1) /* should be true as we've had at least one match */
660		{
661		/* Look through all matching certs for suitable issuer */
662		for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
663			{
664			pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
665			/* See if we've run past the matches */
666			if (pobj->type != X509_LU_X509)
667				break;
668			if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
669				break;
670			if (ctx->check_issued(ctx, x, pobj->data.x509))
671				{
672				*issuer = pobj->data.x509;
673				X509_OBJECT_up_ref_count(pobj);
674				ret = 1;
675				break;
676				}
677			}
678		}
679	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
680	return ret;
681	}
682
683int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
684	{
685	return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
686	}
687
688int X509_STORE_set_depth(X509_STORE *ctx, int depth)
689	{
690	X509_VERIFY_PARAM_set_depth(ctx->param, depth);
691	return 1;
692	}
693
694int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
695	{
696	return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
697	}
698
699int X509_STORE_set_trust(X509_STORE *ctx, int trust)
700	{
701	return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
702	}
703
704int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
705	{
706	return X509_VERIFY_PARAM_set1(ctx->param, param);
707	}
708
709void X509_STORE_set_verify_cb(X509_STORE *ctx,
710				  int (*verify_cb)(int, X509_STORE_CTX *))
711	{
712	ctx->verify_cb = verify_cb;
713	}
714
715IMPLEMENT_STACK_OF(X509_LOOKUP)
716IMPLEMENT_STACK_OF(X509_OBJECT)
717