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 "internal/refcount.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;
183 CRYPTO_DOWN_REF(&vfy->references, &i, vfy->lock);
184 REF_PRINT_COUNT("X509_STORE", vfy);
187 REF_ASSERT_ISNT(i < 0);
189 sk = vfy->get_cert_methods;
190 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
191 lu = sk_X509_LOOKUP_value(sk, i);
192 X509_LOOKUP_shutdown(lu);
193 X509_LOOKUP_free(lu);
195 sk_X509_LOOKUP_free(sk);
196 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
198 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
199 X509_VERIFY_PARAM_free(vfy->param);
200 CRYPTO_THREAD_lock_free(vfy->lock);
204 int X509_STORE_up_ref(X509_STORE *vfy)
208 if (CRYPTO_UP_REF(&vfy->references, &i, vfy->lock) <= 0)
211 REF_PRINT_COUNT("X509_STORE", a);
212 REF_ASSERT_ISNT(i < 2);
213 return ((i > 1) ? 1 : 0);
216 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
219 STACK_OF(X509_LOOKUP) *sk;
222 sk = v->get_cert_methods;
223 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
224 lu = sk_X509_LOOKUP_value(sk, i);
225 if (m == lu->method) {
230 lu = X509_LOOKUP_new(m);
235 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
238 X509_LOOKUP_free(lu);
244 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
245 X509_LOOKUP_TYPE type,
248 X509_OBJECT *ret = X509_OBJECT_new();
252 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
253 X509_OBJECT_free(ret);
259 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
260 X509_NAME *name, X509_OBJECT *ret)
262 X509_STORE *ctx = vs->ctx;
264 X509_OBJECT stmp, *tmp;
267 CRYPTO_THREAD_write_lock(ctx->lock);
268 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
269 CRYPTO_THREAD_unlock(ctx->lock);
271 if (tmp == NULL || type == X509_LU_CRL) {
272 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
273 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
274 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
284 ret->type = tmp->type;
285 ret->data.ptr = tmp->data.ptr;
287 X509_OBJECT_up_ref_count(ret);
292 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
294 int ret = 0, added = 0;
298 obj = X509_OBJECT_new();
303 obj->type = X509_LU_CRL;
304 obj->data.crl = (X509_CRL *)x;
306 obj->type = X509_LU_X509;
307 obj->data.x509 = (X509 *)x;
309 X509_OBJECT_up_ref_count(obj);
311 CRYPTO_THREAD_write_lock(ctx->lock);
313 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
316 added = sk_X509_OBJECT_push(ctx->objs, obj);
320 CRYPTO_THREAD_unlock(ctx->lock);
322 if (added == 0) /* obj not pushed */
323 X509_OBJECT_free(obj);
328 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
330 if (!x509_store_add(ctx, x, 0)) {
331 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
337 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
339 if (!x509_store_add(ctx, x, 1)) {
340 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
346 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
352 return X509_up_ref(a->data.x509);
354 return X509_CRL_up_ref(a->data.crl);
359 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
361 if (a == NULL || a->type != X509_LU_X509)
366 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
368 if (a == NULL || a->type != X509_LU_CRL)
373 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
378 X509_OBJECT *X509_OBJECT_new()
380 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
383 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
386 ret->type = X509_LU_NONE;
391 void X509_OBJECT_free(X509_OBJECT *a)
399 X509_free(a->data.x509);
402 X509_CRL_free(a->data.crl);
408 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
409 X509_NAME *name, int *pnmatch)
419 stmp.data.x509 = &x509_s;
420 x509_s.cert_info.subject = name;
423 stmp.data.crl = &crl_s;
424 crl_s.crl.issuer = name;
431 idx = sk_X509_OBJECT_find(h, &stmp);
432 if (idx >= 0 && pnmatch) {
434 const X509_OBJECT *tobj, *pstmp;
437 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
438 tobj = sk_X509_OBJECT_value(h, tidx);
439 if (x509_object_cmp(&tobj, &pstmp))
447 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
450 return x509_object_idx_cnt(h, type, name, NULL);
453 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
454 X509_LOOKUP_TYPE type,
458 idx = X509_OBJECT_idx_by_subject(h, type, name);
461 return sk_X509_OBJECT_value(h, idx);
464 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
469 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
472 STACK_OF(X509) *sk = NULL;
476 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
477 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
480 * Nothing found in cache: do lookup to possibly add new objects to
483 X509_OBJECT *xobj = X509_OBJECT_new();
485 CRYPTO_THREAD_unlock(ctx->ctx->lock);
488 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
489 X509_OBJECT_free(xobj);
492 X509_OBJECT_free(xobj);
493 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
494 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
496 CRYPTO_THREAD_unlock(ctx->ctx->lock);
501 sk = sk_X509_new_null();
502 for (i = 0; i < cnt; i++, idx++) {
503 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
506 if (!sk_X509_push(sk, x)) {
507 CRYPTO_THREAD_unlock(ctx->ctx->lock);
509 sk_X509_pop_free(sk, X509_free);
513 CRYPTO_THREAD_unlock(ctx->ctx->lock);
517 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
520 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
522 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
524 /* Always do lookup to possibly add new CRLs to cache */
525 if (sk == NULL || xobj == NULL ||
526 !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
527 X509_OBJECT_free(xobj);
528 sk_X509_CRL_free(sk);
531 X509_OBJECT_free(xobj);
532 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
533 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
535 CRYPTO_THREAD_unlock(ctx->ctx->lock);
536 sk_X509_CRL_free(sk);
540 for (i = 0; i < cnt; i++, idx++) {
541 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
544 if (!sk_X509_CRL_push(sk, x)) {
545 CRYPTO_THREAD_unlock(ctx->ctx->lock);
547 sk_X509_CRL_pop_free(sk, X509_CRL_free);
551 CRYPTO_THREAD_unlock(ctx->ctx->lock);
555 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
560 idx = sk_X509_OBJECT_find(h, x);
563 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
564 return sk_X509_OBJECT_value(h, idx);
565 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
566 obj = sk_X509_OBJECT_value(h, i);
568 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
570 if (x->type == X509_LU_X509) {
571 if (!X509_cmp(obj->data.x509, x->data.x509))
573 } else if (x->type == X509_LU_CRL) {
574 if (!X509_CRL_match(obj->data.crl, x->data.crl))
583 * Try to get issuer certificate from store. Due to limitations
584 * of the API this can only retrieve a single certificate matching
585 * a given subject name. However it will fill the cache with all
586 * matching certificates, so we can examine the cache for all
590 * 1 lookup successful.
591 * 0 certificate not found.
592 * -1 some other error.
594 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
597 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
603 xn = X509_get_issuer_name(x);
604 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
606 X509_OBJECT_free(obj);
609 /* If certificate matches all OK */
610 if (ctx->check_issued(ctx, x, obj->data.x509)) {
611 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
612 *issuer = obj->data.x509;
613 X509_up_ref(*issuer);
614 X509_OBJECT_free(obj);
618 X509_OBJECT_free(obj);
620 /* Else find index of first cert accepted by 'check_issued' */
622 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
623 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
624 if (idx != -1) { /* should be true as we've had at least one
626 /* Look through all matching certs for suitable issuer */
627 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
628 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
629 /* See if we've run past the matches */
630 if (pobj->type != X509_LU_X509)
632 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
634 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
635 *issuer = pobj->data.x509;
638 * If times check, exit with match,
639 * otherwise keep looking. Leave last
640 * match in issuer so we return nearest
641 * match if no certificate time is OK.
644 if (x509_check_cert_time(ctx, *issuer, -1))
649 CRYPTO_THREAD_unlock(ctx->ctx->lock);
651 X509_up_ref(*issuer);
655 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
657 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
660 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
662 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
666 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
668 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
671 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
673 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
676 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
678 return X509_VERIFY_PARAM_set1(ctx->param, param);
681 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
686 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
688 ctx->verify = verify;
691 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
696 void X509_STORE_set_verify_cb(X509_STORE *ctx,
697 X509_STORE_CTX_verify_cb verify_cb)
699 ctx->verify_cb = verify_cb;
702 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
704 return ctx->verify_cb;
707 void X509_STORE_set_get_issuer(X509_STORE *ctx,
708 X509_STORE_CTX_get_issuer_fn get_issuer)
710 ctx->get_issuer = get_issuer;
713 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
715 return ctx->get_issuer;
718 void X509_STORE_set_check_issued(X509_STORE *ctx,
719 X509_STORE_CTX_check_issued_fn check_issued)
721 ctx->check_issued = check_issued;
724 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
726 return ctx->check_issued;
729 void X509_STORE_set_check_revocation(X509_STORE *ctx,
730 X509_STORE_CTX_check_revocation_fn check_revocation)
732 ctx->check_revocation = check_revocation;
735 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
737 return ctx->check_revocation;
740 void X509_STORE_set_get_crl(X509_STORE *ctx,
741 X509_STORE_CTX_get_crl_fn get_crl)
743 ctx->get_crl = get_crl;
746 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
751 void X509_STORE_set_check_crl(X509_STORE *ctx,
752 X509_STORE_CTX_check_crl_fn check_crl)
754 ctx->check_crl = check_crl;
757 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
759 return ctx->check_crl;
762 void X509_STORE_set_cert_crl(X509_STORE *ctx,
763 X509_STORE_CTX_cert_crl_fn cert_crl)
765 ctx->cert_crl = cert_crl;
768 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
770 return ctx->cert_crl;
773 void X509_STORE_set_check_policy(X509_STORE *ctx,
774 X509_STORE_CTX_check_policy_fn check_policy)
776 ctx->check_policy = check_policy;
779 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
781 return ctx->check_policy;
784 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
785 X509_STORE_CTX_lookup_certs_fn lookup_certs)
787 ctx->lookup_certs = lookup_certs;
790 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
792 return ctx->lookup_certs;
795 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
796 X509_STORE_CTX_lookup_crls_fn lookup_crls)
798 ctx->lookup_crls = lookup_crls;
801 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
803 return ctx->lookup_crls;
806 void X509_STORE_set_cleanup(X509_STORE *ctx,
807 X509_STORE_CTX_cleanup_fn ctx_cleanup)
809 ctx->cleanup = ctx_cleanup;
812 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
817 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
819 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
822 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
824 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
827 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)