2 * Copyright 1995-2016 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 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
296 int ret = 1, added = 1;
300 obj = X509_OBJECT_new();
303 obj->type = X509_LU_X509;
305 X509_OBJECT_up_ref_count(obj);
307 CRYPTO_THREAD_write_lock(ctx->lock);
309 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
310 X509err(X509_F_X509_STORE_ADD_CERT,
311 X509_R_CERT_ALREADY_IN_HASH_TABLE);
314 added = sk_X509_OBJECT_push(ctx->objs, obj);
318 CRYPTO_THREAD_unlock(ctx->lock);
320 if (!ret) /* obj not pushed */
321 X509_OBJECT_free(obj);
322 if (!added) /* on push failure */
323 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
328 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
331 int ret = 1, added = 1;
335 obj = X509_OBJECT_new();
338 obj->type = X509_LU_CRL;
340 X509_OBJECT_up_ref_count(obj);
342 CRYPTO_THREAD_write_lock(ctx->lock);
344 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
345 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
348 added = sk_X509_OBJECT_push(ctx->objs, obj);
352 CRYPTO_THREAD_unlock(ctx->lock);
354 if (!ret) /* obj not pushed */
355 X509_OBJECT_free(obj);
356 if (!added) /* on push failure */
357 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
362 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
368 return X509_up_ref(a->data.x509);
370 return X509_CRL_up_ref(a->data.crl);
375 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
377 if (a == NULL || a->type != X509_LU_X509)
382 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
384 if (a == NULL || a->type != X509_LU_CRL)
389 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
394 X509_OBJECT *X509_OBJECT_new()
396 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
399 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
402 ret->type = X509_LU_NONE;
407 void X509_OBJECT_free(X509_OBJECT *a)
415 X509_free(a->data.x509);
418 X509_CRL_free(a->data.crl);
424 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
425 X509_NAME *name, int *pnmatch)
435 stmp.data.x509 = &x509_s;
436 x509_s.cert_info.subject = name;
439 stmp.data.crl = &crl_s;
440 crl_s.crl.issuer = name;
447 idx = sk_X509_OBJECT_find(h, &stmp);
448 if (idx >= 0 && pnmatch) {
450 const X509_OBJECT *tobj, *pstmp;
453 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
454 tobj = sk_X509_OBJECT_value(h, tidx);
455 if (x509_object_cmp(&tobj, &pstmp))
463 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
466 return x509_object_idx_cnt(h, type, name, NULL);
469 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
470 X509_LOOKUP_TYPE type,
474 idx = X509_OBJECT_idx_by_subject(h, type, name);
477 return sk_X509_OBJECT_value(h, idx);
480 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
485 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
488 STACK_OF(X509) *sk = NULL;
492 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
493 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
496 * Nothing found in cache: do lookup to possibly add new objects to
499 X509_OBJECT *xobj = X509_OBJECT_new();
501 CRYPTO_THREAD_unlock(ctx->ctx->lock);
504 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
505 X509_OBJECT_free(xobj);
508 X509_OBJECT_free(xobj);
509 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
510 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
512 CRYPTO_THREAD_unlock(ctx->ctx->lock);
517 sk = sk_X509_new_null();
518 for (i = 0; i < cnt; i++, idx++) {
519 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
522 if (!sk_X509_push(sk, x)) {
523 CRYPTO_THREAD_unlock(ctx->ctx->lock);
525 sk_X509_pop_free(sk, X509_free);
529 CRYPTO_THREAD_unlock(ctx->ctx->lock);
533 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
536 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
538 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
540 /* Always do lookup to possibly add new CRLs to cache */
541 if (sk == NULL || xobj == NULL ||
542 !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
543 X509_OBJECT_free(xobj);
544 sk_X509_CRL_free(sk);
547 X509_OBJECT_free(xobj);
548 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
549 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
551 CRYPTO_THREAD_unlock(ctx->ctx->lock);
552 sk_X509_CRL_free(sk);
556 for (i = 0; i < cnt; i++, idx++) {
557 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
560 if (!sk_X509_CRL_push(sk, x)) {
561 CRYPTO_THREAD_unlock(ctx->ctx->lock);
563 sk_X509_CRL_pop_free(sk, X509_CRL_free);
567 CRYPTO_THREAD_unlock(ctx->ctx->lock);
571 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
576 idx = sk_X509_OBJECT_find(h, x);
579 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
580 return sk_X509_OBJECT_value(h, idx);
581 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
582 obj = sk_X509_OBJECT_value(h, i);
584 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
586 if (x->type == X509_LU_X509) {
587 if (!X509_cmp(obj->data.x509, x->data.x509))
589 } else if (x->type == X509_LU_CRL) {
590 if (!X509_CRL_match(obj->data.crl, x->data.crl))
599 * Try to get issuer certificate from store. Due to limitations
600 * of the API this can only retrieve a single certificate matching
601 * a given subject name. However it will fill the cache with all
602 * matching certificates, so we can examine the cache for all
606 * 1 lookup successful.
607 * 0 certificate not found.
608 * -1 some other error.
610 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
613 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
619 xn = X509_get_issuer_name(x);
620 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
622 X509_OBJECT_free(obj);
625 /* If certificate matches all OK */
626 if (ctx->check_issued(ctx, x, obj->data.x509)) {
627 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
628 *issuer = obj->data.x509;
629 X509_up_ref(*issuer);
630 X509_OBJECT_free(obj);
634 X509_OBJECT_free(obj);
636 /* Else find index of first cert accepted by 'check_issued' */
638 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
639 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
640 if (idx != -1) { /* should be true as we've had at least one
642 /* Look through all matching certs for suitable issuer */
643 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
644 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
645 /* See if we've run past the matches */
646 if (pobj->type != X509_LU_X509)
648 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
650 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
651 *issuer = pobj->data.x509;
654 * If times check, exit with match,
655 * otherwise keep looking. Leave last
656 * match in issuer so we return nearest
657 * match if no certificate time is OK.
660 if (x509_check_cert_time(ctx, *issuer, -1))
665 CRYPTO_THREAD_unlock(ctx->ctx->lock);
667 X509_up_ref(*issuer);
671 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
673 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
676 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
678 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
682 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
684 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
687 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
689 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
692 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
694 return X509_VERIFY_PARAM_set1(ctx->param, param);
697 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
702 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
704 ctx->verify = verify;
707 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
712 void X509_STORE_set_verify_cb(X509_STORE *ctx,
713 X509_STORE_CTX_verify_cb verify_cb)
715 ctx->verify_cb = verify_cb;
718 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
720 return ctx->verify_cb;
723 void X509_STORE_set_get_issuer(X509_STORE *ctx,
724 X509_STORE_CTX_get_issuer_fn get_issuer)
726 ctx->get_issuer = get_issuer;
729 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
731 return ctx->get_issuer;
734 void X509_STORE_set_check_issued(X509_STORE *ctx,
735 X509_STORE_CTX_check_issued_fn check_issued)
737 ctx->check_issued = check_issued;
740 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
742 return ctx->check_issued;
745 void X509_STORE_set_check_revocation(X509_STORE *ctx,
746 X509_STORE_CTX_check_revocation_fn check_revocation)
748 ctx->check_revocation = check_revocation;
751 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
753 return ctx->check_revocation;
756 void X509_STORE_set_get_crl(X509_STORE *ctx,
757 X509_STORE_CTX_get_crl_fn get_crl)
759 ctx->get_crl = get_crl;
762 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
767 void X509_STORE_set_check_crl(X509_STORE *ctx,
768 X509_STORE_CTX_check_crl_fn check_crl)
770 ctx->check_crl = check_crl;
773 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
775 return ctx->check_crl;
778 void X509_STORE_set_cert_crl(X509_STORE *ctx,
779 X509_STORE_CTX_cert_crl_fn cert_crl)
781 ctx->cert_crl = cert_crl;
784 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
786 return ctx->cert_crl;
789 void X509_STORE_set_check_policy(X509_STORE *ctx,
790 X509_STORE_CTX_check_policy_fn check_policy)
792 ctx->check_policy = check_policy;
795 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
797 return ctx->check_policy;
800 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
801 X509_STORE_CTX_lookup_certs_fn lookup_certs)
803 ctx->lookup_certs = lookup_certs;
806 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
808 return ctx->lookup_certs;
811 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
812 X509_STORE_CTX_lookup_crls_fn lookup_crls)
814 ctx->lookup_crls = lookup_crls;
817 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
819 return ctx->lookup_crls;
822 void X509_STORE_set_cleanup(X509_STORE *ctx,
823 X509_STORE_CTX_cleanup_fn ctx_cleanup)
825 ctx->cleanup = ctx_cleanup;
828 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
833 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
835 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
838 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
840 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
843 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)