2 * Copyright 1995-2018 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 int X509_LOOKUP_set_method_data(X509_LOOKUP *ctx, void *data)
122 ctx->method_data = data;
126 void *X509_LOOKUP_get_method_data(const X509_LOOKUP *ctx)
128 return ctx->method_data;
131 X509_STORE *X509_LOOKUP_get_store(const X509_LOOKUP *ctx)
133 return ctx->store_ctx;
137 static int x509_object_cmp(const X509_OBJECT *const *a,
138 const X509_OBJECT *const *b)
142 ret = ((*a)->type - (*b)->type);
145 switch ((*a)->type) {
147 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
150 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
159 X509_STORE *X509_STORE_new(void)
163 if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
165 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL)
168 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL)
171 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
174 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
177 ret->lock = CRYPTO_THREAD_lock_new();
178 if (ret->lock == NULL)
185 X509_VERIFY_PARAM_free(ret->param);
186 sk_X509_OBJECT_free(ret->objs);
187 sk_X509_LOOKUP_free(ret->get_cert_methods);
192 void X509_STORE_free(X509_STORE *vfy)
195 STACK_OF(X509_LOOKUP) *sk;
201 CRYPTO_atomic_add(&vfy->references, -1, &i, vfy->lock);
202 REF_PRINT_COUNT("X509_STORE", vfy);
205 REF_ASSERT_ISNT(i < 0);
207 sk = vfy->get_cert_methods;
208 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
209 lu = sk_X509_LOOKUP_value(sk, i);
210 X509_LOOKUP_shutdown(lu);
211 X509_LOOKUP_free(lu);
213 sk_X509_LOOKUP_free(sk);
214 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
216 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
217 X509_VERIFY_PARAM_free(vfy->param);
218 CRYPTO_THREAD_lock_free(vfy->lock);
222 int X509_STORE_up_ref(X509_STORE *vfy)
226 if (CRYPTO_atomic_add(&vfy->references, 1, &i, vfy->lock) <= 0)
229 REF_PRINT_COUNT("X509_STORE", a);
230 REF_ASSERT_ISNT(i < 2);
231 return ((i > 1) ? 1 : 0);
234 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
237 STACK_OF(X509_LOOKUP) *sk;
240 sk = v->get_cert_methods;
241 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
242 lu = sk_X509_LOOKUP_value(sk, i);
243 if (m == lu->method) {
248 lu = X509_LOOKUP_new(m);
253 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
256 X509_LOOKUP_free(lu);
262 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
263 X509_LOOKUP_TYPE type,
266 X509_OBJECT *ret = X509_OBJECT_new();
270 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
271 X509_OBJECT_free(ret);
277 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
278 X509_NAME *name, X509_OBJECT *ret)
280 X509_STORE *ctx = vs->ctx;
282 X509_OBJECT stmp, *tmp;
288 CRYPTO_THREAD_write_lock(ctx->lock);
289 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
290 CRYPTO_THREAD_unlock(ctx->lock);
292 if (tmp == NULL || type == X509_LU_CRL) {
293 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
294 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
295 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
305 ret->type = tmp->type;
306 ret->data.ptr = tmp->data.ptr;
308 X509_OBJECT_up_ref_count(ret);
313 static int x509_store_add(X509_STORE *ctx, void *x, int crl)
316 int ret = 0, added = 0;
320 obj = X509_OBJECT_new();
325 obj->type = X509_LU_CRL;
326 obj->data.crl = (X509_CRL *)x;
328 obj->type = X509_LU_X509;
329 obj->data.x509 = (X509 *)x;
331 X509_OBJECT_up_ref_count(obj);
333 CRYPTO_THREAD_write_lock(ctx->lock);
335 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
338 added = sk_X509_OBJECT_push(ctx->objs, obj);
342 CRYPTO_THREAD_unlock(ctx->lock);
344 if (added == 0) /* obj not pushed */
345 X509_OBJECT_free(obj);
350 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
352 if (!x509_store_add(ctx, x, 0)) {
353 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
359 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
361 if (!x509_store_add(ctx, x, 1)) {
362 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
368 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
374 return X509_up_ref(a->data.x509);
376 return X509_CRL_up_ref(a->data.crl);
381 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
383 if (a == NULL || a->type != X509_LU_X509)
388 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
390 if (a == NULL || a->type != X509_LU_CRL)
395 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
400 X509_OBJECT *X509_OBJECT_new()
402 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
405 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
408 ret->type = X509_LU_NONE;
412 static void x509_object_free_internal(X509_OBJECT *a)
420 X509_free(a->data.x509);
423 X509_CRL_free(a->data.crl);
428 int X509_OBJECT_set1_X509(X509_OBJECT *a, X509 *obj)
430 if (a == NULL || !X509_up_ref(obj))
433 x509_object_free_internal(a);
434 a->type = X509_LU_X509;
439 int X509_OBJECT_set1_X509_CRL(X509_OBJECT *a, X509_CRL *obj)
441 if (a == NULL || !X509_CRL_up_ref(obj))
444 x509_object_free_internal(a);
445 a->type = X509_LU_CRL;
450 void X509_OBJECT_free(X509_OBJECT *a)
452 x509_object_free_internal(a);
456 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
457 X509_NAME *name, int *pnmatch)
467 stmp.data.x509 = &x509_s;
468 x509_s.cert_info.subject = name;
471 stmp.data.crl = &crl_s;
472 crl_s.crl.issuer = name;
479 idx = sk_X509_OBJECT_find(h, &stmp);
480 if (idx >= 0 && pnmatch) {
482 const X509_OBJECT *tobj, *pstmp;
485 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
486 tobj = sk_X509_OBJECT_value(h, tidx);
487 if (x509_object_cmp(&tobj, &pstmp))
495 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
498 return x509_object_idx_cnt(h, type, name, NULL);
501 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
502 X509_LOOKUP_TYPE type,
506 idx = X509_OBJECT_idx_by_subject(h, type, name);
509 return sk_X509_OBJECT_value(h, idx);
512 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
517 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
520 STACK_OF(X509) *sk = NULL;
524 if (ctx->ctx == NULL)
527 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
528 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
531 * Nothing found in cache: do lookup to possibly add new objects to
534 X509_OBJECT *xobj = X509_OBJECT_new();
536 CRYPTO_THREAD_unlock(ctx->ctx->lock);
539 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
540 X509_OBJECT_free(xobj);
543 X509_OBJECT_free(xobj);
544 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
545 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
547 CRYPTO_THREAD_unlock(ctx->ctx->lock);
552 sk = sk_X509_new_null();
553 for (i = 0; i < cnt; i++, idx++) {
554 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
557 if (!sk_X509_push(sk, x)) {
558 CRYPTO_THREAD_unlock(ctx->ctx->lock);
560 sk_X509_pop_free(sk, X509_free);
564 CRYPTO_THREAD_unlock(ctx->ctx->lock);
568 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
571 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
573 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
575 /* Always do lookup to possibly add new CRLs to cache */
579 || !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
580 X509_OBJECT_free(xobj);
581 sk_X509_CRL_free(sk);
584 X509_OBJECT_free(xobj);
585 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
586 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
588 CRYPTO_THREAD_unlock(ctx->ctx->lock);
589 sk_X509_CRL_free(sk);
593 for (i = 0; i < cnt; i++, idx++) {
594 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
597 if (!sk_X509_CRL_push(sk, x)) {
598 CRYPTO_THREAD_unlock(ctx->ctx->lock);
600 sk_X509_CRL_pop_free(sk, X509_CRL_free);
604 CRYPTO_THREAD_unlock(ctx->ctx->lock);
608 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
613 idx = sk_X509_OBJECT_find(h, x);
616 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
617 return sk_X509_OBJECT_value(h, idx);
618 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
619 obj = sk_X509_OBJECT_value(h, i);
621 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
623 if (x->type == X509_LU_X509) {
624 if (!X509_cmp(obj->data.x509, x->data.x509))
626 } else if (x->type == X509_LU_CRL) {
627 if (!X509_CRL_match(obj->data.crl, x->data.crl))
636 * Try to get issuer certificate from store. Due to limitations
637 * of the API this can only retrieve a single certificate matching
638 * a given subject name. However it will fill the cache with all
639 * matching certificates, so we can examine the cache for all
643 * 1 lookup successful.
644 * 0 certificate not found.
645 * -1 some other error.
647 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
650 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
656 xn = X509_get_issuer_name(x);
657 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
659 X509_OBJECT_free(obj);
662 /* If certificate matches all OK */
663 if (ctx->check_issued(ctx, x, obj->data.x509)) {
664 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
665 *issuer = obj->data.x509;
666 X509_up_ref(*issuer);
667 X509_OBJECT_free(obj);
671 X509_OBJECT_free(obj);
673 if (ctx->ctx == NULL)
676 /* Else find index of first cert accepted by 'check_issued' */
678 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
679 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
680 if (idx != -1) { /* should be true as we've had at least one
682 /* Look through all matching certs for suitable issuer */
683 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
684 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
685 /* See if we've run past the matches */
686 if (pobj->type != X509_LU_X509)
688 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
690 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
691 *issuer = pobj->data.x509;
694 * If times check, exit with match,
695 * otherwise keep looking. Leave last
696 * match in issuer so we return nearest
697 * match if no certificate time is OK.
700 if (x509_check_cert_time(ctx, *issuer, -1))
705 CRYPTO_THREAD_unlock(ctx->ctx->lock);
707 X509_up_ref(*issuer);
711 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
713 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
716 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
718 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
722 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
724 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
727 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
729 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
732 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
734 return X509_VERIFY_PARAM_set1(ctx->param, param);
737 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
742 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
744 ctx->verify = verify;
747 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
752 void X509_STORE_set_verify_cb(X509_STORE *ctx,
753 X509_STORE_CTX_verify_cb verify_cb)
755 ctx->verify_cb = verify_cb;
758 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
760 return ctx->verify_cb;
763 void X509_STORE_set_get_issuer(X509_STORE *ctx,
764 X509_STORE_CTX_get_issuer_fn get_issuer)
766 ctx->get_issuer = get_issuer;
769 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
771 return ctx->get_issuer;
774 void X509_STORE_set_check_issued(X509_STORE *ctx,
775 X509_STORE_CTX_check_issued_fn check_issued)
777 ctx->check_issued = check_issued;
780 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
782 return ctx->check_issued;
785 void X509_STORE_set_check_revocation(X509_STORE *ctx,
786 X509_STORE_CTX_check_revocation_fn check_revocation)
788 ctx->check_revocation = check_revocation;
791 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
793 return ctx->check_revocation;
796 void X509_STORE_set_get_crl(X509_STORE *ctx,
797 X509_STORE_CTX_get_crl_fn get_crl)
799 ctx->get_crl = get_crl;
802 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
807 void X509_STORE_set_check_crl(X509_STORE *ctx,
808 X509_STORE_CTX_check_crl_fn check_crl)
810 ctx->check_crl = check_crl;
813 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
815 return ctx->check_crl;
818 void X509_STORE_set_cert_crl(X509_STORE *ctx,
819 X509_STORE_CTX_cert_crl_fn cert_crl)
821 ctx->cert_crl = cert_crl;
824 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
826 return ctx->cert_crl;
829 void X509_STORE_set_check_policy(X509_STORE *ctx,
830 X509_STORE_CTX_check_policy_fn check_policy)
832 ctx->check_policy = check_policy;
835 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
837 return ctx->check_policy;
840 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
841 X509_STORE_CTX_lookup_certs_fn lookup_certs)
843 ctx->lookup_certs = lookup_certs;
846 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
848 return ctx->lookup_certs;
851 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
852 X509_STORE_CTX_lookup_crls_fn lookup_crls)
854 ctx->lookup_crls = lookup_crls;
857 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
859 return ctx->lookup_crls;
862 void X509_STORE_set_cleanup(X509_STORE *ctx,
863 X509_STORE_CTX_cleanup_fn ctx_cleanup)
865 ctx->cleanup = ctx_cleanup;
868 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
873 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
875 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
878 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
880 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
883 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)