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/mem.h>
62 #include <openssl/thread.h>
63 #include <openssl/x509.h>
64 #include <openssl/x509v3.h>
65 
66 #include "../internal.h"
67 #include "internal.h"
68 
X509_LOOKUP_new(X509_LOOKUP_METHOD * method)69 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
70 {
71     X509_LOOKUP *ret;
72 
73     ret = (X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
74     if (ret == NULL)
75         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         OPENSSL_free(ret);
84         return NULL;
85     }
86     return ret;
87 }
88 
X509_LOOKUP_free(X509_LOOKUP * ctx)89 void X509_LOOKUP_free(X509_LOOKUP *ctx)
90 {
91     if (ctx == NULL)
92         return;
93     if ((ctx->method != NULL) && (ctx->method->free != NULL))
94         (*ctx->method->free) (ctx);
95     OPENSSL_free(ctx);
96 }
97 
X509_LOOKUP_init(X509_LOOKUP * ctx)98 int X509_LOOKUP_init(X509_LOOKUP *ctx)
99 {
100     if (ctx->method == NULL)
101         return 0;
102     if (ctx->method->init != NULL)
103         return ctx->method->init(ctx);
104     else
105         return 1;
106 }
107 
X509_LOOKUP_shutdown(X509_LOOKUP * ctx)108 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
109 {
110     if (ctx->method == NULL)
111         return 0;
112     if (ctx->method->shutdown != NULL)
113         return ctx->method->shutdown(ctx);
114     else
115         return 1;
116 }
117 
X509_LOOKUP_ctrl(X509_LOOKUP * ctx,int cmd,const char * argc,long argl,char ** ret)118 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
119                      char **ret)
120 {
121     if (ctx->method == NULL)
122         return -1;
123     if (ctx->method->ctrl != NULL)
124         return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
125     else
126         return 1;
127 }
128 
X509_LOOKUP_by_subject(X509_LOOKUP * ctx,int type,X509_NAME * name,X509_OBJECT * ret)129 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
130                            X509_OBJECT *ret)
131 {
132     if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
133         return 0;
134     if (ctx->skip)
135         return 0;
136     return ctx->method->get_by_subject(ctx, type, name, ret) > 0;
137 }
138 
X509_LOOKUP_by_issuer_serial(X509_LOOKUP * ctx,int type,X509_NAME * name,ASN1_INTEGER * serial,X509_OBJECT * ret)139 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
140                                  ASN1_INTEGER *serial, X509_OBJECT *ret)
141 {
142     if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
143         return 0;
144     return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret) > 0;
145 }
146 
X509_LOOKUP_by_fingerprint(X509_LOOKUP * ctx,int type,unsigned char * bytes,int len,X509_OBJECT * ret)147 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
148                                unsigned char *bytes, int len,
149                                X509_OBJECT *ret)
150 {
151     if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
152         return 0;
153     return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret) > 0;
154 }
155 
X509_LOOKUP_by_alias(X509_LOOKUP * ctx,int type,char * str,int len,X509_OBJECT * ret)156 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
157                          X509_OBJECT *ret)
158 {
159     if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
160         return 0;
161     return ctx->method->get_by_alias(ctx, type, str, len, ret) > 0;
162 }
163 
x509_object_cmp(const X509_OBJECT ** a,const X509_OBJECT ** b)164 static int x509_object_cmp(const X509_OBJECT **a, const X509_OBJECT **b)
165 {
166     int ret;
167 
168     ret = ((*a)->type - (*b)->type);
169     if (ret)
170         return ret;
171     switch ((*a)->type) {
172     case X509_LU_X509:
173         ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
174         break;
175     case X509_LU_CRL:
176         ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
177         break;
178     default:
179         /* abort(); */
180         return 0;
181     }
182     return ret;
183 }
184 
X509_STORE_new(void)185 X509_STORE *X509_STORE_new(void)
186 {
187     X509_STORE *ret;
188 
189     if ((ret = (X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
190         return NULL;
191     OPENSSL_memset(ret, 0, sizeof(*ret));
192     CRYPTO_MUTEX_init(&ret->objs_lock);
193     ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
194     if (ret->objs == NULL)
195         goto err;
196     ret->cache = 1;
197     ret->get_cert_methods = sk_X509_LOOKUP_new_null();
198     if (ret->get_cert_methods == NULL)
199         goto err;
200     ret->param = X509_VERIFY_PARAM_new();
201     if (ret->param == NULL)
202         goto err;
203 
204     ret->references = 1;
205     return ret;
206  err:
207     if (ret) {
208         CRYPTO_MUTEX_cleanup(&ret->objs_lock);
209         if (ret->param)
210             X509_VERIFY_PARAM_free(ret->param);
211         if (ret->get_cert_methods)
212             sk_X509_LOOKUP_free(ret->get_cert_methods);
213         if (ret->objs)
214             sk_X509_OBJECT_free(ret->objs);
215         OPENSSL_free(ret);
216     }
217     return NULL;
218 }
219 
X509_STORE_up_ref(X509_STORE * store)220 int X509_STORE_up_ref(X509_STORE *store)
221 {
222     CRYPTO_refcount_inc(&store->references);
223     return 1;
224 }
225 
cleanup(X509_OBJECT * a)226 static void cleanup(X509_OBJECT *a)
227 {
228     if (a == NULL) {
229         return;
230     }
231     if (a->type == X509_LU_X509) {
232         X509_free(a->data.x509);
233     } else if (a->type == X509_LU_CRL) {
234         X509_CRL_free(a->data.crl);
235     } else {
236         /* abort(); */
237     }
238 
239     OPENSSL_free(a);
240 }
241 
X509_STORE_free(X509_STORE * vfy)242 void X509_STORE_free(X509_STORE *vfy)
243 {
244     size_t j;
245     STACK_OF(X509_LOOKUP) *sk;
246     X509_LOOKUP *lu;
247 
248     if (vfy == NULL)
249         return;
250 
251     if (!CRYPTO_refcount_dec_and_test_zero(&vfy->references)) {
252         return;
253     }
254 
255     CRYPTO_MUTEX_cleanup(&vfy->objs_lock);
256 
257     sk = vfy->get_cert_methods;
258     for (j = 0; j < sk_X509_LOOKUP_num(sk); j++) {
259         lu = sk_X509_LOOKUP_value(sk, j);
260         X509_LOOKUP_shutdown(lu);
261         X509_LOOKUP_free(lu);
262     }
263     sk_X509_LOOKUP_free(sk);
264     sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
265 
266     if (vfy->param)
267         X509_VERIFY_PARAM_free(vfy->param);
268     OPENSSL_free(vfy);
269 }
270 
X509_STORE_add_lookup(X509_STORE * v,X509_LOOKUP_METHOD * m)271 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
272 {
273     size_t i;
274     STACK_OF(X509_LOOKUP) *sk;
275     X509_LOOKUP *lu;
276 
277     sk = v->get_cert_methods;
278     for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
279         lu = sk_X509_LOOKUP_value(sk, i);
280         if (m == lu->method) {
281             return lu;
282         }
283     }
284     /* a new one */
285     lu = X509_LOOKUP_new(m);
286     if (lu == NULL)
287         return NULL;
288     else {
289         lu->store_ctx = v;
290         if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
291             return lu;
292         else {
293             X509_LOOKUP_free(lu);
294             return NULL;
295         }
296     }
297 }
298 
X509_STORE_get_by_subject(X509_STORE_CTX * vs,int type,X509_NAME * name,X509_OBJECT * ret)299 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
300                               X509_OBJECT *ret)
301 {
302     X509_STORE *ctx = vs->ctx;
303     X509_LOOKUP *lu;
304     X509_OBJECT stmp, *tmp;
305     int i;
306 
307     CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
308     tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
309     CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
310 
311     if (tmp == NULL || type == X509_LU_CRL) {
312         for (i = 0; i < (int)sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
313             lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
314             if (X509_LOOKUP_by_subject(lu, type, name, &stmp)) {
315                 tmp = &stmp;
316                 break;
317             }
318         }
319         if (tmp == NULL)
320             return 0;
321     }
322 
323     /*
324      * if (ret->data.ptr != NULL) X509_OBJECT_free_contents(ret);
325      */
326 
327     ret->type = tmp->type;
328     ret->data.ptr = tmp->data.ptr;
329 
330     X509_OBJECT_up_ref_count(ret);
331 
332     return 1;
333 }
334 
X509_STORE_add_cert(X509_STORE * ctx,X509 * x)335 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
336 {
337     X509_OBJECT *obj;
338     int ret = 1;
339 
340     if (x == NULL)
341         return 0;
342     obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
343     if (obj == NULL) {
344         OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
345         return 0;
346     }
347     obj->type = X509_LU_X509;
348     obj->data.x509 = x;
349 
350     CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
351 
352     X509_OBJECT_up_ref_count(obj);
353 
354     if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
355         X509_OBJECT_free_contents(obj);
356         OPENSSL_free(obj);
357         OPENSSL_PUT_ERROR(X509, X509_R_CERT_ALREADY_IN_HASH_TABLE);
358         ret = 0;
359     } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) {
360         X509_OBJECT_free_contents(obj);
361         OPENSSL_free(obj);
362         OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
363         ret = 0;
364     }
365 
366     CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
367 
368     return ret;
369 }
370 
X509_STORE_add_crl(X509_STORE * ctx,X509_CRL * x)371 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
372 {
373     X509_OBJECT *obj;
374     int ret = 1;
375 
376     if (x == NULL)
377         return 0;
378     obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
379     if (obj == NULL) {
380         OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
381         return 0;
382     }
383     obj->type = X509_LU_CRL;
384     obj->data.crl = x;
385 
386     CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
387 
388     X509_OBJECT_up_ref_count(obj);
389 
390     if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
391         X509_OBJECT_free_contents(obj);
392         OPENSSL_free(obj);
393         OPENSSL_PUT_ERROR(X509, X509_R_CERT_ALREADY_IN_HASH_TABLE);
394         ret = 0;
395     } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) {
396         X509_OBJECT_free_contents(obj);
397         OPENSSL_free(obj);
398         OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
399         ret = 0;
400     }
401 
402     CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
403 
404     return ret;
405 }
406 
X509_OBJECT_up_ref_count(X509_OBJECT * a)407 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
408 {
409     switch (a->type) {
410     case X509_LU_X509:
411         X509_up_ref(a->data.x509);
412         break;
413     case X509_LU_CRL:
414         X509_CRL_up_ref(a->data.crl);
415         break;
416     }
417     return 1;
418 }
419 
X509_OBJECT_free_contents(X509_OBJECT * a)420 void X509_OBJECT_free_contents(X509_OBJECT *a)
421 {
422     switch (a->type) {
423     case X509_LU_X509:
424         X509_free(a->data.x509);
425         break;
426     case X509_LU_CRL:
427         X509_CRL_free(a->data.crl);
428         break;
429     }
430 }
431 
X509_OBJECT_get_type(const X509_OBJECT * a)432 int X509_OBJECT_get_type(const X509_OBJECT *a)
433 {
434     return a->type;
435 }
436 
X509_OBJECT_get0_X509(const X509_OBJECT * a)437 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
438 {
439     if (a == NULL || a->type != X509_LU_X509) {
440         return NULL;
441     }
442     return a->data.x509;
443 }
444 
x509_object_idx_cnt(STACK_OF (X509_OBJECT)* h,int type,X509_NAME * name,int * pnmatch)445 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
446                                X509_NAME *name, int *pnmatch)
447 {
448     X509_OBJECT stmp;
449     X509 x509_s;
450     X509_CINF cinf_s;
451     X509_CRL crl_s;
452     X509_CRL_INFO crl_info_s;
453 
454     stmp.type = type;
455     switch (type) {
456     case X509_LU_X509:
457         stmp.data.x509 = &x509_s;
458         x509_s.cert_info = &cinf_s;
459         cinf_s.subject = name;
460         break;
461     case X509_LU_CRL:
462         stmp.data.crl = &crl_s;
463         crl_s.crl = &crl_info_s;
464         crl_info_s.issuer = name;
465         break;
466     default:
467         /* abort(); */
468         return -1;
469     }
470 
471     size_t idx;
472     sk_X509_OBJECT_sort(h);
473     if (!sk_X509_OBJECT_find(h, &idx, &stmp))
474         return -1;
475 
476     if (pnmatch != NULL) {
477         int tidx;
478         const X509_OBJECT *tobj, *pstmp;
479         *pnmatch = 1;
480         pstmp = &stmp;
481         for (tidx = idx + 1; tidx < (int)sk_X509_OBJECT_num(h); tidx++) {
482             tobj = sk_X509_OBJECT_value(h, tidx);
483             if (x509_object_cmp(&tobj, &pstmp))
484                 break;
485             (*pnmatch)++;
486         }
487     }
488 
489     return idx;
490 }
491 
X509_OBJECT_idx_by_subject(STACK_OF (X509_OBJECT)* h,int type,X509_NAME * name)492 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
493                                X509_NAME *name)
494 {
495     return x509_object_idx_cnt(h, type, name, NULL);
496 }
497 
X509_OBJECT_retrieve_by_subject(STACK_OF (X509_OBJECT)* h,int type,X509_NAME * name)498 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
499                                              int type, X509_NAME *name)
500 {
501     int idx;
502     idx = X509_OBJECT_idx_by_subject(h, type, name);
503     if (idx == -1)
504         return NULL;
505     return sk_X509_OBJECT_value(h, idx);
506 }
507 
STACK_OF(X509_OBJECT)508 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *st)
509 {
510     return st->objs;
511 }
512 
STACK_OF(X509)513 STACK_OF (X509) * X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
514 {
515     int i, idx, cnt;
516     STACK_OF(X509) *sk;
517     X509 *x;
518     X509_OBJECT *obj;
519     sk = sk_X509_new_null();
520     if (sk == NULL)
521         return NULL;
522     CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
523     idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
524     if (idx < 0) {
525         /*
526          * Nothing found in cache: do lookup to possibly add new objects to
527          * cache
528          */
529         X509_OBJECT xobj;
530         CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
531         if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
532             sk_X509_free(sk);
533             return NULL;
534         }
535         X509_OBJECT_free_contents(&xobj);
536         CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
537         idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
538         if (idx < 0) {
539             CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
540             sk_X509_free(sk);
541             return NULL;
542         }
543     }
544     for (i = 0; i < cnt; i++, idx++) {
545         obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
546         x = obj->data.x509;
547         if (!sk_X509_push(sk, x)) {
548             CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
549             sk_X509_pop_free(sk, X509_free);
550             return NULL;
551         }
552         X509_up_ref(x);
553     }
554     CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
555     return sk;
556 
557 }
558 
STACK_OF(X509_CRL)559 STACK_OF (X509_CRL) * X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
560 {
561     int i, idx, cnt;
562     STACK_OF(X509_CRL) *sk;
563     X509_CRL *x;
564     X509_OBJECT *obj, xobj;
565     sk = sk_X509_CRL_new_null();
566     if (sk == NULL)
567         return NULL;
568 
569     /* Always do lookup to possibly add new CRLs to cache. */
570     if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
571         sk_X509_CRL_free(sk);
572         return NULL;
573     }
574     X509_OBJECT_free_contents(&xobj);
575     CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
576     idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
577     if (idx < 0) {
578         CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
579         sk_X509_CRL_free(sk);
580         return NULL;
581     }
582 
583     for (i = 0; i < cnt; i++, idx++) {
584         obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
585         x = obj->data.crl;
586         X509_CRL_up_ref(x);
587         if (!sk_X509_CRL_push(sk, x)) {
588             CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
589             X509_CRL_free(x);
590             sk_X509_CRL_pop_free(sk, X509_CRL_free);
591             return NULL;
592         }
593     }
594     CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
595     return sk;
596 }
597 
X509_OBJECT_retrieve_match(STACK_OF (X509_OBJECT)* h,X509_OBJECT * x)598 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
599                                         X509_OBJECT *x)
600 {
601     size_t idx, i;
602     X509_OBJECT *obj;
603 
604     sk_X509_OBJECT_sort(h);
605     if (!sk_X509_OBJECT_find(h, &idx, x)) {
606         return NULL;
607     }
608     if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
609         return sk_X509_OBJECT_value(h, idx);
610     for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
611         obj = sk_X509_OBJECT_value(h, i);
612         if (x509_object_cmp
613             ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
614             return NULL;
615         if (x->type == X509_LU_X509) {
616             if (!X509_cmp(obj->data.x509, x->data.x509))
617                 return obj;
618         } else if (x->type == X509_LU_CRL) {
619             if (!X509_CRL_match(obj->data.crl, x->data.crl))
620                 return obj;
621         } else
622             return obj;
623     }
624     return NULL;
625 }
626 
627 /*
628  * Try to get issuer certificate from store. Due to limitations of the API
629  * this can only retrieve a single certificate matching a given subject name.
630  * However it will fill the cache with all matching certificates, so we can
631  * examine the cache for all matches. Return values are: 1 lookup
632  * successful.  0 certificate not found. -1 some other error.
633  */
X509_STORE_CTX_get1_issuer(X509 ** issuer,X509_STORE_CTX * ctx,X509 * x)634 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
635 {
636     X509_NAME *xn;
637     X509_OBJECT obj, *pobj;
638     int idx, ret;
639     size_t i;
640     xn = X509_get_issuer_name(x);
641     if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj))
642         return 0;
643     /* If certificate matches all OK */
644     if (ctx->check_issued(ctx, x, obj.data.x509)) {
645         *issuer = obj.data.x509;
646         return 1;
647     }
648     X509_OBJECT_free_contents(&obj);
649 
650     /* Else find index of first cert accepted by 'check_issued' */
651     ret = 0;
652     CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
653     idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
654     if (idx != -1) {            /* should be true as we've had at least one
655                                  * match */
656         /* Look through all matching certs for suitable issuer */
657         for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
658             pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
659             /* See if we've run past the matches */
660             if (pobj->type != X509_LU_X509)
661                 break;
662             if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
663                 break;
664             if (ctx->check_issued(ctx, x, pobj->data.x509)) {
665                 *issuer = pobj->data.x509;
666                 X509_OBJECT_up_ref_count(pobj);
667                 ret = 1;
668                 break;
669             }
670         }
671     }
672     CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
673     return ret;
674 }
675 
X509_STORE_set_flags(X509_STORE * ctx,unsigned long flags)676 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
677 {
678     return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
679 }
680 
X509_STORE_set_depth(X509_STORE * ctx,int depth)681 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
682 {
683     X509_VERIFY_PARAM_set_depth(ctx->param, depth);
684     return 1;
685 }
686 
X509_STORE_set_purpose(X509_STORE * ctx,int purpose)687 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
688 {
689     return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
690 }
691 
X509_STORE_set_trust(X509_STORE * ctx,int trust)692 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
693 {
694     return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
695 }
696 
X509_STORE_set1_param(X509_STORE * ctx,X509_VERIFY_PARAM * param)697 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
698 {
699     return X509_VERIFY_PARAM_set1(ctx->param, param);
700 }
701 
X509_STORE_get0_param(X509_STORE * ctx)702 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
703 {
704     return ctx->param;
705 }
706 
X509_STORE_set_verify(X509_STORE * ctx,X509_STORE_CTX_verify_fn verify)707 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
708 {
709     ctx->verify = verify;
710 }
711 
X509_STORE_get_verify(X509_STORE * ctx)712 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
713 {
714     return ctx->verify;
715 }
716 
X509_STORE_set_verify_cb(X509_STORE * ctx,X509_STORE_CTX_verify_cb verify_cb)717 void X509_STORE_set_verify_cb(X509_STORE *ctx,
718                               X509_STORE_CTX_verify_cb verify_cb)
719 {
720     ctx->verify_cb = verify_cb;
721 }
722 
X509_STORE_get_verify_cb(X509_STORE * ctx)723 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
724 {
725     return ctx->verify_cb;
726 }
727 
X509_STORE_set_get_issuer(X509_STORE * ctx,X509_STORE_CTX_get_issuer_fn get_issuer)728 void X509_STORE_set_get_issuer(X509_STORE *ctx,
729                                X509_STORE_CTX_get_issuer_fn get_issuer)
730 {
731     ctx->get_issuer = get_issuer;
732 }
733 
X509_STORE_get_get_issuer(X509_STORE * ctx)734 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
735 {
736     return ctx->get_issuer;
737 }
738 
X509_STORE_set_check_issued(X509_STORE * ctx,X509_STORE_CTX_check_issued_fn check_issued)739 void X509_STORE_set_check_issued(X509_STORE *ctx,
740                                  X509_STORE_CTX_check_issued_fn check_issued)
741 {
742     ctx->check_issued = check_issued;
743 }
744 
X509_STORE_get_check_issued(X509_STORE * ctx)745 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
746 {
747     return ctx->check_issued;
748 }
749 
X509_STORE_set_check_revocation(X509_STORE * ctx,X509_STORE_CTX_check_revocation_fn check_revocation)750 void X509_STORE_set_check_revocation(X509_STORE *ctx,
751                                      X509_STORE_CTX_check_revocation_fn check_revocation)
752 {
753     ctx->check_revocation = check_revocation;
754 }
755 
X509_STORE_get_check_revocation(X509_STORE * ctx)756 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
757 {
758     return ctx->check_revocation;
759 }
760 
X509_STORE_set_get_crl(X509_STORE * ctx,X509_STORE_CTX_get_crl_fn get_crl)761 void X509_STORE_set_get_crl(X509_STORE *ctx,
762                             X509_STORE_CTX_get_crl_fn get_crl)
763 {
764     ctx->get_crl = get_crl;
765 }
766 
X509_STORE_get_get_crl(X509_STORE * ctx)767 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
768 {
769     return ctx->get_crl;
770 }
771 
X509_STORE_set_check_crl(X509_STORE * ctx,X509_STORE_CTX_check_crl_fn check_crl)772 void X509_STORE_set_check_crl(X509_STORE *ctx,
773                               X509_STORE_CTX_check_crl_fn check_crl)
774 {
775     ctx->check_crl = check_crl;
776 }
777 
X509_STORE_get_check_crl(X509_STORE * ctx)778 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
779 {
780     return ctx->check_crl;
781 }
782 
X509_STORE_set_cert_crl(X509_STORE * ctx,X509_STORE_CTX_cert_crl_fn cert_crl)783 void X509_STORE_set_cert_crl(X509_STORE *ctx,
784                              X509_STORE_CTX_cert_crl_fn cert_crl)
785 {
786     ctx->cert_crl = cert_crl;
787 }
788 
X509_STORE_get_cert_crl(X509_STORE * ctx)789 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
790 {
791     return ctx->cert_crl;
792 }
793 
X509_STORE_set_lookup_certs(X509_STORE * ctx,X509_STORE_CTX_lookup_certs_fn lookup_certs)794 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
795                                  X509_STORE_CTX_lookup_certs_fn lookup_certs)
796 {
797     ctx->lookup_certs = lookup_certs;
798 }
799 
X509_STORE_get_lookup_certs(X509_STORE * ctx)800 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
801 {
802     return ctx->lookup_certs;
803 }
804 
X509_STORE_set_lookup_crls(X509_STORE * ctx,X509_STORE_CTX_lookup_crls_fn lookup_crls)805 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
806                                 X509_STORE_CTX_lookup_crls_fn lookup_crls)
807 {
808     ctx->lookup_crls = lookup_crls;
809 }
810 
X509_STORE_get_lookup_crls(X509_STORE * ctx)811 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
812 {
813     return ctx->lookup_crls;
814 }
815 
X509_STORE_set_cleanup(X509_STORE * ctx,X509_STORE_CTX_cleanup_fn ctx_cleanup)816 void X509_STORE_set_cleanup(X509_STORE *ctx,
817                             X509_STORE_CTX_cleanup_fn ctx_cleanup)
818 {
819     ctx->cleanup = ctx_cleanup;
820 }
821 
X509_STORE_get_cleanup(X509_STORE * ctx)822 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
823 {
824     return ctx->cleanup;
825 }
826 
X509_STORE_CTX_get0_store(X509_STORE_CTX * ctx)827 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)
828 {
829     return ctx->ctx;
830 }
831