2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/lhash.h>
13 #include <openssl/x509.h>
14 #include "internal/x509_int.h"
15 #include <openssl/x509v3.h>
18 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
22 ret = OPENSSL_zalloc(sizeof(*ret));
27 if ((method->new_item != NULL) && !method->new_item(ret)) {
34 void X509_LOOKUP_free(X509_LOOKUP *ctx)
38 if ((ctx->method != NULL) && (ctx->method->free != NULL))
39 (*ctx->method->free) (ctx);
43 int X509_STORE_lock(X509_STORE *s)
45 return CRYPTO_THREAD_write_lock(s->lock);
48 int X509_STORE_unlock(X509_STORE *s)
50 return CRYPTO_THREAD_unlock(s->lock);
53 int X509_LOOKUP_init(X509_LOOKUP *ctx)
55 if (ctx->method == NULL)
57 if (ctx->method->init != NULL)
58 return ctx->method->init(ctx);
63 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
65 if (ctx->method == NULL)
67 if (ctx->method->shutdown != NULL)
68 return ctx->method->shutdown(ctx);
73 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
76 if (ctx->method == NULL)
78 if (ctx->method->ctrl != NULL)
79 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
84 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
85 X509_NAME *name, X509_OBJECT *ret)
87 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
91 return ctx->method->get_by_subject(ctx, type, name, ret);
94 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
95 X509_NAME *name, ASN1_INTEGER *serial,
98 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
100 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
103 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
104 const unsigned char *bytes, int len,
107 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
109 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
112 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
113 const char *str, int len, X509_OBJECT *ret)
115 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
117 return ctx->method->get_by_alias(ctx, type, str, len, ret);
120 static int x509_object_cmp(const X509_OBJECT *const *a,
121 const X509_OBJECT *const *b)
125 ret = ((*a)->type - (*b)->type);
128 switch ((*a)->type) {
130 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
133 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
142 X509_STORE *X509_STORE_new(void)
146 if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
148 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL)
151 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL)
154 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
157 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
160 ret->lock = CRYPTO_THREAD_lock_new();
161 if (ret->lock == NULL)
168 X509_VERIFY_PARAM_free(ret->param);
169 sk_X509_OBJECT_free(ret->objs);
170 sk_X509_LOOKUP_free(ret->get_cert_methods);
175 void X509_STORE_free(X509_STORE *vfy)
178 STACK_OF(X509_LOOKUP) *sk;
184 CRYPTO_DOWN_REF(&vfy->references, &i, vfy->lock);
185 REF_PRINT_COUNT("X509_STORE", vfy);
188 REF_ASSERT_ISNT(i < 0);
190 sk = vfy->get_cert_methods;
191 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
192 lu = sk_X509_LOOKUP_value(sk, i);
193 X509_LOOKUP_shutdown(lu);
194 X509_LOOKUP_free(lu);
196 sk_X509_LOOKUP_free(sk);
197 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
199 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
200 X509_VERIFY_PARAM_free(vfy->param);
201 CRYPTO_THREAD_lock_free(vfy->lock);
205 int X509_STORE_up_ref(X509_STORE *vfy)
209 if (CRYPTO_UP_REF(&vfy->references, &i, vfy->lock) <= 0)
212 REF_PRINT_COUNT("X509_STORE", a);
213 REF_ASSERT_ISNT(i < 2);
214 return ((i > 1) ? 1 : 0);
217 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
220 STACK_OF(X509_LOOKUP) *sk;
223 sk = v->get_cert_methods;
224 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
225 lu = sk_X509_LOOKUP_value(sk, i);
226 if (m == lu->method) {
231 lu = X509_LOOKUP_new(m);
236 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
239 X509_LOOKUP_free(lu);
245 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
246 X509_LOOKUP_TYPE type,
249 X509_OBJECT *ret = X509_OBJECT_new();
253 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
254 X509_OBJECT_free(ret);
260 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
261 X509_NAME *name, X509_OBJECT *ret)
263 X509_STORE *ctx = vs->ctx;
265 X509_OBJECT stmp, *tmp;
268 CRYPTO_THREAD_write_lock(ctx->lock);
269 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
270 CRYPTO_THREAD_unlock(ctx->lock);
272 if (tmp == NULL || type == X509_LU_CRL) {
273 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
274 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
275 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
285 ret->type = tmp->type;
286 ret->data.ptr = tmp->data.ptr;
288 X509_OBJECT_up_ref_count(ret);
293 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
295 int ret = 0, added = 0;
299 obj = X509_OBJECT_new();
304 obj->type = X509_LU_CRL;
305 obj->data.crl = (X509_CRL *)x;
307 obj->type = X509_LU_X509;
308 obj->data.x509 = (X509 *)x;
310 X509_OBJECT_up_ref_count(obj);
312 CRYPTO_THREAD_write_lock(ctx->lock);
314 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
317 added = sk_X509_OBJECT_push(ctx->objs, obj);
321 CRYPTO_THREAD_unlock(ctx->lock);
323 if (added == 0) /* obj not pushed */
324 X509_OBJECT_free(obj);
329 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
331 if (!x509_store_add(ctx, x, 0)) {
332 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
338 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
340 if (!x509_store_add(ctx, x, 1)) {
341 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
347 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
353 return X509_up_ref(a->data.x509);
355 return X509_CRL_up_ref(a->data.crl);
360 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
362 if (a == NULL || a->type != X509_LU_X509)
367 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
369 if (a == NULL || a->type != X509_LU_CRL)
374 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
379 X509_OBJECT *X509_OBJECT_new()
381 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
384 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
387 ret->type = X509_LU_NONE;
392 void X509_OBJECT_free(X509_OBJECT *a)
400 X509_free(a->data.x509);
403 X509_CRL_free(a->data.crl);
409 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
410 X509_NAME *name, int *pnmatch)
420 stmp.data.x509 = &x509_s;
421 x509_s.cert_info.subject = name;
424 stmp.data.crl = &crl_s;
425 crl_s.crl.issuer = name;
432 idx = sk_X509_OBJECT_find(h, &stmp);
433 if (idx >= 0 && pnmatch) {
435 const X509_OBJECT *tobj, *pstmp;
438 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
439 tobj = sk_X509_OBJECT_value(h, tidx);
440 if (x509_object_cmp(&tobj, &pstmp))
448 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
451 return x509_object_idx_cnt(h, type, name, NULL);
454 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
455 X509_LOOKUP_TYPE type,
459 idx = X509_OBJECT_idx_by_subject(h, type, name);
462 return sk_X509_OBJECT_value(h, idx);
465 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
470 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
473 STACK_OF(X509) *sk = NULL;
477 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
478 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
481 * Nothing found in cache: do lookup to possibly add new objects to
484 X509_OBJECT *xobj = X509_OBJECT_new();
486 CRYPTO_THREAD_unlock(ctx->ctx->lock);
489 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
490 X509_OBJECT_free(xobj);
493 X509_OBJECT_free(xobj);
494 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
495 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
497 CRYPTO_THREAD_unlock(ctx->ctx->lock);
502 sk = sk_X509_new_null();
503 for (i = 0; i < cnt; i++, idx++) {
504 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
507 if (!sk_X509_push(sk, x)) {
508 CRYPTO_THREAD_unlock(ctx->ctx->lock);
510 sk_X509_pop_free(sk, X509_free);
514 CRYPTO_THREAD_unlock(ctx->ctx->lock);
518 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
521 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
523 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
525 /* Always do lookup to possibly add new CRLs to cache */
526 if (sk == NULL || xobj == NULL ||
527 !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
528 X509_OBJECT_free(xobj);
529 sk_X509_CRL_free(sk);
532 X509_OBJECT_free(xobj);
533 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
534 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
536 CRYPTO_THREAD_unlock(ctx->ctx->lock);
537 sk_X509_CRL_free(sk);
541 for (i = 0; i < cnt; i++, idx++) {
542 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
545 if (!sk_X509_CRL_push(sk, x)) {
546 CRYPTO_THREAD_unlock(ctx->ctx->lock);
548 sk_X509_CRL_pop_free(sk, X509_CRL_free);
552 CRYPTO_THREAD_unlock(ctx->ctx->lock);
556 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
561 idx = sk_X509_OBJECT_find(h, x);
564 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
565 return sk_X509_OBJECT_value(h, idx);
566 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
567 obj = sk_X509_OBJECT_value(h, i);
569 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
571 if (x->type == X509_LU_X509) {
572 if (!X509_cmp(obj->data.x509, x->data.x509))
574 } else if (x->type == X509_LU_CRL) {
575 if (!X509_CRL_match(obj->data.crl, x->data.crl))
584 * Try to get issuer certificate from store. Due to limitations
585 * of the API this can only retrieve a single certificate matching
586 * a given subject name. However it will fill the cache with all
587 * matching certificates, so we can examine the cache for all
591 * 1 lookup successful.
592 * 0 certificate not found.
593 * -1 some other error.
595 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
598 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
604 xn = X509_get_issuer_name(x);
605 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
607 X509_OBJECT_free(obj);
610 /* If certificate matches all OK */
611 if (ctx->check_issued(ctx, x, obj->data.x509)) {
612 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
613 *issuer = obj->data.x509;
614 X509_up_ref(*issuer);
615 X509_OBJECT_free(obj);
619 X509_OBJECT_free(obj);
621 /* Else find index of first cert accepted by 'check_issued' */
623 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
624 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
625 if (idx != -1) { /* should be true as we've had at least one
627 /* Look through all matching certs for suitable issuer */
628 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
629 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
630 /* See if we've run past the matches */
631 if (pobj->type != X509_LU_X509)
633 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
635 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
636 *issuer = pobj->data.x509;
639 * If times check, exit with match,
640 * otherwise keep looking. Leave last
641 * match in issuer so we return nearest
642 * match if no certificate time is OK.
645 if (x509_check_cert_time(ctx, *issuer, -1))
650 CRYPTO_THREAD_unlock(ctx->ctx->lock);
652 X509_up_ref(*issuer);
656 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
658 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
661 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
663 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
667 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
669 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
672 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
674 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
677 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
679 return X509_VERIFY_PARAM_set1(ctx->param, param);
682 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
687 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
689 ctx->verify = verify;
692 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
697 void X509_STORE_set_verify_cb(X509_STORE *ctx,
698 X509_STORE_CTX_verify_cb verify_cb)
700 ctx->verify_cb = verify_cb;
703 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
705 return ctx->verify_cb;
708 void X509_STORE_set_get_issuer(X509_STORE *ctx,
709 X509_STORE_CTX_get_issuer_fn get_issuer)
711 ctx->get_issuer = get_issuer;
714 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
716 return ctx->get_issuer;
719 void X509_STORE_set_check_issued(X509_STORE *ctx,
720 X509_STORE_CTX_check_issued_fn check_issued)
722 ctx->check_issued = check_issued;
725 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
727 return ctx->check_issued;
730 void X509_STORE_set_check_revocation(X509_STORE *ctx,
731 X509_STORE_CTX_check_revocation_fn check_revocation)
733 ctx->check_revocation = check_revocation;
736 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
738 return ctx->check_revocation;
741 void X509_STORE_set_get_crl(X509_STORE *ctx,
742 X509_STORE_CTX_get_crl_fn get_crl)
744 ctx->get_crl = get_crl;
747 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
752 void X509_STORE_set_check_crl(X509_STORE *ctx,
753 X509_STORE_CTX_check_crl_fn check_crl)
755 ctx->check_crl = check_crl;
758 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
760 return ctx->check_crl;
763 void X509_STORE_set_cert_crl(X509_STORE *ctx,
764 X509_STORE_CTX_cert_crl_fn cert_crl)
766 ctx->cert_crl = cert_crl;
769 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
771 return ctx->cert_crl;
774 void X509_STORE_set_check_policy(X509_STORE *ctx,
775 X509_STORE_CTX_check_policy_fn check_policy)
777 ctx->check_policy = check_policy;
780 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
782 return ctx->check_policy;
785 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
786 X509_STORE_CTX_lookup_certs_fn lookup_certs)
788 ctx->lookup_certs = lookup_certs;
791 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
793 return ctx->lookup_certs;
796 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
797 X509_STORE_CTX_lookup_crls_fn lookup_crls)
799 ctx->lookup_crls = lookup_crls;
802 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
804 return ctx->lookup_crls;
807 void X509_STORE_set_cleanup(X509_STORE *ctx,
808 X509_STORE_CTX_cleanup_fn ctx_cleanup)
810 ctx->cleanup = ctx_cleanup;
813 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
818 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
820 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
823 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
825 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
828 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)