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#include <string.h>
59
60#include <openssl/err.h>
61#include <openssl/lhash.h>
62#include <openssl/mem.h>
63#include <openssl/thread.h>
64#include <openssl/x509.h>
65#include <openssl/x509v3.h>
66
67#include "../internal.h"
68
69
70X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
71	{
72	X509_LOOKUP *ret;
73
74	ret=(X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
75	if (ret == NULL) return NULL;
76
77	ret->init=0;
78	ret->skip=0;
79	ret->method=method;
80	ret->method_data=NULL;
81	ret->store_ctx=NULL;
82	if ((method->new_item != NULL) && !method->new_item(ret))
83		{
84		OPENSSL_free(ret);
85		return NULL;
86		}
87	return ret;
88	}
89
90void X509_LOOKUP_free(X509_LOOKUP *ctx)
91	{
92	if (ctx == NULL) return;
93	if (	(ctx->method != NULL) &&
94		(ctx->method->free != NULL))
95		(*ctx->method->free)(ctx);
96	OPENSSL_free(ctx);
97	}
98
99int X509_LOOKUP_init(X509_LOOKUP *ctx)
100	{
101	if (ctx->method == NULL) return 0;
102	if (ctx->method->init != NULL)
103		return ctx->method->init(ctx);
104	else
105		return 1;
106	}
107
108int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
109	{
110	if (ctx->method == NULL) return 0;
111	if (ctx->method->shutdown != NULL)
112		return ctx->method->shutdown(ctx);
113	else
114		return 1;
115	}
116
117int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
118	     char **ret)
119	{
120	if (ctx->method == NULL) return -1;
121	if (ctx->method->ctrl != NULL)
122		return ctx->method->ctrl(ctx,cmd,argc,argl,ret);
123	else
124		return 1;
125	}
126
127int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
128	     X509_OBJECT *ret)
129	{
130	if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
131		return X509_LU_FAIL;
132	if (ctx->skip) return 0;
133	return ctx->method->get_by_subject(ctx,type,name,ret);
134	}
135
136int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
137	     ASN1_INTEGER *serial, X509_OBJECT *ret)
138	{
139	if ((ctx->method == NULL) ||
140		(ctx->method->get_by_issuer_serial == NULL))
141		return X509_LU_FAIL;
142	return ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret);
143	}
144
145int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
146	     unsigned char *bytes, int len, X509_OBJECT *ret)
147	{
148	if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
149		return X509_LU_FAIL;
150	return ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret);
151	}
152
153int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
154	     X509_OBJECT *ret)
155	{
156	if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
157		return X509_LU_FAIL;
158	return ctx->method->get_by_alias(ctx,type,str,len,ret);
159	}
160
161
162static int x509_object_cmp(const X509_OBJECT **a, const X509_OBJECT **b)
163  	{
164 	int ret;
165
166 	ret=((*a)->type - (*b)->type);
167 	if (ret) return ret;
168 	switch ((*a)->type)
169 		{
170 	case X509_LU_X509:
171 		ret=X509_subject_name_cmp((*a)->data.x509,(*b)->data.x509);
172 		break;
173 	case X509_LU_CRL:
174 		ret=X509_CRL_cmp((*a)->data.crl,(*b)->data.crl);
175 		break;
176	default:
177		/* abort(); */
178		return 0;
179		}
180	return ret;
181	}
182
183X509_STORE *X509_STORE_new(void)
184	{
185	X509_STORE *ret;
186
187	if ((ret=(X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
188		return NULL;
189	memset(ret, 0, sizeof(*ret));
190	ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
191	CRYPTO_MUTEX_init(&ret->objs_lock);
192	ret->cache = 1;
193	ret->get_cert_methods = sk_X509_LOOKUP_new_null();
194
195	if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
196		goto err;
197
198	ret->references = 1;
199	return ret;
200err:
201	if (ret)
202		{
203		if (ret->param)
204			X509_VERIFY_PARAM_free(ret->param);
205		if (ret->get_cert_methods)
206			sk_X509_LOOKUP_free(ret->get_cert_methods);
207		if (ret->objs)
208			sk_X509_OBJECT_free(ret->objs);
209		OPENSSL_free(ret);
210		}
211	return NULL;
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	size_t j;
235	STACK_OF(X509_LOOKUP) *sk;
236	X509_LOOKUP *lu;
237
238	if (vfy == NULL)
239	    return;
240
241	if (!CRYPTO_refcount_dec_and_test_zero(&vfy->references)) {
242	  return;
243	}
244
245	CRYPTO_MUTEX_cleanup(&vfy->objs_lock);
246
247	sk=vfy->get_cert_methods;
248	for (j=0; j<sk_X509_LOOKUP_num(sk); j++)
249		{
250		lu=sk_X509_LOOKUP_value(sk,j);
251		X509_LOOKUP_shutdown(lu);
252		X509_LOOKUP_free(lu);
253		}
254	sk_X509_LOOKUP_free(sk);
255	sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
256
257	if (vfy->param)
258		X509_VERIFY_PARAM_free(vfy->param);
259	OPENSSL_free(vfy);
260	}
261
262X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
263	{
264	size_t i;
265	STACK_OF(X509_LOOKUP) *sk;
266	X509_LOOKUP *lu;
267
268	sk=v->get_cert_methods;
269	for (i=0; i<sk_X509_LOOKUP_num(sk); i++)
270		{
271		lu=sk_X509_LOOKUP_value(sk,i);
272		if (m == lu->method)
273			{
274			return lu;
275			}
276		}
277	/* a new one */
278	lu=X509_LOOKUP_new(m);
279	if (lu == NULL)
280		return NULL;
281	else
282		{
283		lu->store_ctx=v;
284		if (sk_X509_LOOKUP_push(v->get_cert_methods,lu))
285			return lu;
286		else
287			{
288			X509_LOOKUP_free(lu);
289			return NULL;
290			}
291		}
292	}
293
294int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
295	     X509_OBJECT *ret)
296	{
297	X509_STORE *ctx=vs->ctx;
298	X509_LOOKUP *lu;
299	X509_OBJECT stmp,*tmp;
300	int i,j;
301
302	CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
303	tmp=X509_OBJECT_retrieve_by_subject(ctx->objs,type,name);
304	CRYPTO_MUTEX_unlock(&ctx->objs_lock);
305
306	if (tmp == NULL || type == X509_LU_CRL)
307		{
308		for (i=vs->current_method; i<(int)sk_X509_LOOKUP_num(ctx->get_cert_methods); i++)
309			{
310			lu=sk_X509_LOOKUP_value(ctx->get_cert_methods,i);
311			j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
312			if (j < 0)
313				{
314				vs->current_method=j;
315				return j;
316				}
317			else if (j)
318				{
319				tmp= &stmp;
320				break;
321				}
322			}
323		vs->current_method=0;
324		if (tmp == NULL)
325			return 0;
326		}
327
328/*	if (ret->data.ptr != NULL)
329		X509_OBJECT_free_contents(ret); */
330
331	ret->type=tmp->type;
332	ret->data.ptr=tmp->data.ptr;
333
334	X509_OBJECT_up_ref_count(ret);
335
336	return 1;
337	}
338
339int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
340	{
341	X509_OBJECT *obj;
342	int ret=1;
343
344	if (x == NULL) return 0;
345	obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
346	if (obj == NULL)
347		{
348		OPENSSL_PUT_ERROR(X509, X509_STORE_add_cert, ERR_R_MALLOC_FAILURE);
349		return 0;
350		}
351	obj->type=X509_LU_X509;
352	obj->data.x509=x;
353
354	CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
355
356	X509_OBJECT_up_ref_count(obj);
357
358	if (X509_OBJECT_retrieve_match(ctx->objs, obj))
359		{
360		X509_OBJECT_free_contents(obj);
361		OPENSSL_free(obj);
362		OPENSSL_PUT_ERROR(X509, X509_STORE_add_cert, X509_R_CERT_ALREADY_IN_HASH_TABLE);
363		ret=0;
364		}
365	else sk_X509_OBJECT_push(ctx->objs, obj);
366
367	CRYPTO_MUTEX_unlock(&ctx->objs_lock);
368
369	return ret;
370	}
371
372int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
373	{
374	X509_OBJECT *obj;
375	int ret=1;
376
377	if (x == NULL) return 0;
378	obj=(X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
379	if (obj == NULL)
380		{
381		OPENSSL_PUT_ERROR(X509, X509_STORE_add_crl, ERR_R_MALLOC_FAILURE);
382		return 0;
383		}
384	obj->type=X509_LU_CRL;
385	obj->data.crl=x;
386
387	CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
388
389	X509_OBJECT_up_ref_count(obj);
390
391	if (X509_OBJECT_retrieve_match(ctx->objs, obj))
392		{
393		X509_OBJECT_free_contents(obj);
394		OPENSSL_free(obj);
395		OPENSSL_PUT_ERROR(X509, X509_STORE_add_crl, X509_R_CERT_ALREADY_IN_HASH_TABLE);
396		ret=0;
397		}
398	else sk_X509_OBJECT_push(ctx->objs, obj);
399
400	CRYPTO_MUTEX_unlock(&ctx->objs_lock);
401
402	return ret;
403	}
404
405void X509_OBJECT_up_ref_count(X509_OBJECT *a)
406	{
407	switch (a->type)
408		{
409	case X509_LU_X509:
410		X509_up_ref(a->data.x509);
411		break;
412	case X509_LU_CRL:
413		CRYPTO_refcount_inc(&a->data.crl->references);
414		break;
415		}
416	}
417
418void X509_OBJECT_free_contents(X509_OBJECT *a)
419	{
420	switch (a->type)
421		{
422	case X509_LU_X509:
423		X509_free(a->data.x509);
424		break;
425	case X509_LU_CRL:
426		X509_CRL_free(a->data.crl);
427		break;
428		}
429	}
430
431static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
432	     X509_NAME *name, int *pnmatch)
433	{
434	X509_OBJECT stmp;
435	X509 x509_s;
436	X509_CINF cinf_s;
437	X509_CRL crl_s;
438	X509_CRL_INFO crl_info_s;
439	size_t idx;
440
441	stmp.type=type;
442	switch (type)
443		{
444	case X509_LU_X509:
445		stmp.data.x509= &x509_s;
446		x509_s.cert_info= &cinf_s;
447		cinf_s.subject=name;
448		break;
449	case X509_LU_CRL:
450		stmp.data.crl= &crl_s;
451		crl_s.crl= &crl_info_s;
452		crl_info_s.issuer=name;
453		break;
454	default:
455		/* abort(); */
456		return -1;
457		}
458
459	idx = -1;
460	if (sk_X509_OBJECT_find(h, &idx, &stmp) && pnmatch)
461		{
462		int tidx;
463		const X509_OBJECT *tobj, *pstmp;
464		*pnmatch = 1;
465		pstmp = &stmp;
466		for (tidx = idx + 1; tidx < (int)sk_X509_OBJECT_num(h); tidx++)
467			{
468			tobj = sk_X509_OBJECT_value(h, tidx);
469			if (x509_object_cmp(&tobj, &pstmp))
470				break;
471			(*pnmatch)++;
472			}
473		}
474
475	return idx;
476	}
477
478
479int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
480	     X509_NAME *name)
481	{
482	return x509_object_idx_cnt(h, type, name, NULL);
483	}
484
485X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
486	     X509_NAME *name)
487	{
488	int idx;
489	idx = X509_OBJECT_idx_by_subject(h, type, name);
490	if (idx==-1) return NULL;
491	return sk_X509_OBJECT_value(h, idx);
492	}
493
494STACK_OF(X509)* X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
495	{
496	int i, idx, cnt;
497	STACK_OF(X509) *sk;
498	X509 *x;
499	X509_OBJECT *obj;
500	sk = sk_X509_new_null();
501	CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
502	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
503	if (idx < 0)
504		{
505		/* Nothing found in cache: do lookup to possibly add new
506		 * objects to cache
507		 */
508		X509_OBJECT xobj;
509		CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
510		if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj))
511			{
512			sk_X509_free(sk);
513			return NULL;
514			}
515		X509_OBJECT_free_contents(&xobj);
516		CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
517		idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_X509,nm, &cnt);
518		if (idx < 0)
519			{
520			CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
521			sk_X509_free(sk);
522			return NULL;
523			}
524		}
525	for (i = 0; i < cnt; i++, idx++)
526		{
527		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
528		x = obj->data.x509;
529		if (!sk_X509_push(sk, X509_up_ref(x)))
530			{
531			CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
532			X509_free(x);
533			sk_X509_pop_free(sk, X509_free);
534			return NULL;
535			}
536		}
537	CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
538	return sk;
539
540	}
541
542STACK_OF(X509_CRL)* X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
543	{
544	int i, idx, cnt;
545	STACK_OF(X509_CRL) *sk;
546	X509_CRL *x;
547	X509_OBJECT *obj, xobj;
548	sk = sk_X509_CRL_new_null();
549	CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
550	/* Check cache first */
551	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
552
553	/* Always do lookup to possibly add new CRLs to cache
554	 */
555	CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
556	if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj))
557		{
558		sk_X509_CRL_free(sk);
559		return NULL;
560		}
561	X509_OBJECT_free_contents(&xobj);
562	CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
563	idx = x509_object_idx_cnt(ctx->ctx->objs,X509_LU_CRL, nm, &cnt);
564	if (idx < 0)
565		{
566		CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
567		sk_X509_CRL_free(sk);
568		return NULL;
569		}
570
571	for (i = 0; i < cnt; i++, idx++)
572		{
573		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
574		x = obj->data.crl;
575		CRYPTO_refcount_inc(&x->references);
576		if (!sk_X509_CRL_push(sk, x))
577			{
578			CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
579			X509_CRL_free(x);
580			sk_X509_CRL_pop_free(sk, X509_CRL_free);
581			return NULL;
582			}
583		}
584	CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
585	return sk;
586	}
587
588X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
589	{
590	size_t idx, i;
591	X509_OBJECT *obj;
592
593	if (!sk_X509_OBJECT_find(h, &idx, x)) {
594		return NULL;
595	}
596	if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
597		return sk_X509_OBJECT_value(h, idx);
598	for (i = idx; i < sk_X509_OBJECT_num(h); i++)
599		{
600		obj = sk_X509_OBJECT_value(h, i);
601		if (x509_object_cmp((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
602			return NULL;
603		if (x->type == X509_LU_X509)
604			{
605			if (!X509_cmp(obj->data.x509, x->data.x509))
606				return obj;
607			}
608		else if (x->type == X509_LU_CRL)
609			{
610			if (!X509_CRL_match(obj->data.crl, x->data.crl))
611				return obj;
612			}
613		else
614			return obj;
615		}
616	return NULL;
617	}
618
619
620/* Try to get issuer certificate from store. Due to limitations
621 * of the API this can only retrieve a single certificate matching
622 * a given subject name. However it will fill the cache with all
623 * matching certificates, so we can examine the cache for all
624 * matches.
625 *
626 * Return values are:
627 *  1 lookup successful.
628 *  0 certificate not found.
629 * -1 some other error.
630 */
631int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
632	{
633	X509_NAME *xn;
634	X509_OBJECT obj, *pobj;
635	int ok, idx, ret;
636	size_t i;
637	xn=X509_get_issuer_name(x);
638	ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
639	if (ok != X509_LU_X509)
640		{
641		if (ok == X509_LU_RETRY)
642			{
643			X509_OBJECT_free_contents(&obj);
644			OPENSSL_PUT_ERROR(X509, X509_STORE_CTX_get1_issuer, X509_R_SHOULD_RETRY);
645			return -1;
646			}
647		else if (ok != X509_LU_FAIL)
648			{
649			X509_OBJECT_free_contents(&obj);
650			/* not good :-(, break anyway */
651			return -1;
652			}
653		return 0;
654		}
655	/* If certificate matches all OK */
656	if (ctx->check_issued(ctx, x, obj.data.x509))
657		{
658		*issuer = obj.data.x509;
659		return 1;
660		}
661	X509_OBJECT_free_contents(&obj);
662
663	/* Else find index of first cert accepted by 'check_issued' */
664	ret = 0;
665	CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
666	idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
667	if (idx != -1) /* should be true as we've had at least one match */
668		{
669		/* Look through all matching certs for suitable issuer */
670		for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++)
671			{
672			pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
673			/* See if we've run past the matches */
674			if (pobj->type != X509_LU_X509)
675				break;
676			if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
677				break;
678			if (ctx->check_issued(ctx, x, pobj->data.x509))
679				{
680				*issuer = pobj->data.x509;
681				X509_OBJECT_up_ref_count(pobj);
682				ret = 1;
683				break;
684				}
685			}
686		}
687	CRYPTO_MUTEX_unlock(&ctx->ctx->objs_lock);
688	return ret;
689	}
690
691int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
692	{
693	return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
694	}
695
696int X509_STORE_set_depth(X509_STORE *ctx, int depth)
697	{
698	X509_VERIFY_PARAM_set_depth(ctx->param, depth);
699	return 1;
700	}
701
702int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
703	{
704	return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
705	}
706
707int X509_STORE_set_trust(X509_STORE *ctx, int trust)
708	{
709	return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
710	}
711
712int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
713	{
714	return X509_VERIFY_PARAM_set1(ctx->param, param);
715	}
716
717void X509_STORE_set_verify_cb(X509_STORE *ctx,
718				  int (*verify_cb)(int, X509_STORE_CTX *))
719	{
720	ctx->verify_cb = verify_cb;
721	}
722
723void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
724		STACK_OF(X509_CRL)* (*cb)(X509_STORE_CTX *ctx, X509_NAME *nm))
725	{
726	ctx->lookup_crls = cb;
727	}
728
729X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)
730	{
731	return ctx->ctx;
732	}
733