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 "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)
20 X509_LOOKUP *ret = OPENSSL_zalloc(sizeof(*ret));
23 X509err(X509_F_X509_LOOKUP_NEW, ERR_R_MALLOC_FAILURE);
28 if (method->new_item != NULL && method->new_item(ret) == 0) {
35 void X509_LOOKUP_free(X509_LOOKUP *ctx)
39 if ((ctx->method != NULL) && (ctx->method->free != NULL))
40 (*ctx->method->free) (ctx);
44 int X509_STORE_lock(X509_STORE *s)
46 return CRYPTO_THREAD_write_lock(s->lock);
49 int X509_STORE_unlock(X509_STORE *s)
51 return CRYPTO_THREAD_unlock(s->lock);
54 int X509_LOOKUP_init(X509_LOOKUP *ctx)
56 if (ctx->method == NULL)
58 if (ctx->method->init != NULL)
59 return ctx->method->init(ctx);
64 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
66 if (ctx->method == NULL)
68 if (ctx->method->shutdown != NULL)
69 return ctx->method->shutdown(ctx);
74 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
77 if (ctx->method == NULL)
79 if (ctx->method->ctrl != NULL)
80 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
85 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
86 X509_NAME *name, X509_OBJECT *ret)
88 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
92 return ctx->method->get_by_subject(ctx, type, name, ret);
95 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
96 X509_NAME *name, ASN1_INTEGER *serial,
99 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
101 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
104 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
105 const unsigned char *bytes, int len,
108 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
110 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
113 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
114 const char *str, int len, X509_OBJECT *ret)
116 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
118 return ctx->method->get_by_alias(ctx, type, str, len, ret);
121 int X509_LOOKUP_set_method_data(X509_LOOKUP *ctx, void *data)
123 ctx->method_data = data;
127 void *X509_LOOKUP_get_method_data(const X509_LOOKUP *ctx)
129 return ctx->method_data;
132 X509_STORE *X509_LOOKUP_get_store(const X509_LOOKUP *ctx)
134 return ctx->store_ctx;
138 static int x509_object_cmp(const X509_OBJECT *const *a,
139 const X509_OBJECT *const *b)
143 ret = ((*a)->type - (*b)->type);
146 switch ((*a)->type) {
148 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
151 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
160 X509_STORE *X509_STORE_new(void)
162 X509_STORE *ret = OPENSSL_zalloc(sizeof(*ret));
165 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
168 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL) {
169 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
173 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL) {
174 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
178 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) {
179 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
182 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
183 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
187 ret->lock = CRYPTO_THREAD_lock_new();
188 if (ret->lock == NULL) {
189 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
197 X509_VERIFY_PARAM_free(ret->param);
198 sk_X509_OBJECT_free(ret->objs);
199 sk_X509_LOOKUP_free(ret->get_cert_methods);
204 void X509_STORE_free(X509_STORE *vfy)
207 STACK_OF(X509_LOOKUP) *sk;
212 CRYPTO_DOWN_REF(&vfy->references, &i, vfy->lock);
213 REF_PRINT_COUNT("X509_STORE", vfy);
216 REF_ASSERT_ISNT(i < 0);
218 sk = vfy->get_cert_methods;
219 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
220 lu = sk_X509_LOOKUP_value(sk, i);
221 X509_LOOKUP_shutdown(lu);
222 X509_LOOKUP_free(lu);
224 sk_X509_LOOKUP_free(sk);
225 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
227 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
228 X509_VERIFY_PARAM_free(vfy->param);
229 CRYPTO_THREAD_lock_free(vfy->lock);
233 int X509_STORE_up_ref(X509_STORE *vfy)
237 if (CRYPTO_UP_REF(&vfy->references, &i, vfy->lock) <= 0)
240 REF_PRINT_COUNT("X509_STORE", a);
241 REF_ASSERT_ISNT(i < 2);
242 return ((i > 1) ? 1 : 0);
245 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
248 STACK_OF(X509_LOOKUP) *sk;
251 sk = v->get_cert_methods;
252 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
253 lu = sk_X509_LOOKUP_value(sk, i);
254 if (m == lu->method) {
259 lu = X509_LOOKUP_new(m);
261 X509err(X509_F_X509_STORE_ADD_LOOKUP, ERR_R_MALLOC_FAILURE);
266 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
269 X509err(X509_F_X509_STORE_ADD_LOOKUP, ERR_R_MALLOC_FAILURE);
270 X509_LOOKUP_free(lu);
274 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
275 X509_LOOKUP_TYPE type,
278 X509_OBJECT *ret = X509_OBJECT_new();
282 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
283 X509_OBJECT_free(ret);
289 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
290 X509_NAME *name, X509_OBJECT *ret)
292 X509_STORE *ctx = vs->ctx;
294 X509_OBJECT stmp, *tmp;
300 CRYPTO_THREAD_write_lock(ctx->lock);
301 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
302 CRYPTO_THREAD_unlock(ctx->lock);
304 if (tmp == NULL || type == X509_LU_CRL) {
305 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
306 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
307 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
317 ret->type = tmp->type;
318 ret->data.ptr = tmp->data.ptr;
320 X509_OBJECT_up_ref_count(ret);
325 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
327 int ret = 0, added = 0;
331 obj = X509_OBJECT_new();
336 obj->type = X509_LU_CRL;
337 obj->data.crl = (X509_CRL *)x;
339 obj->type = X509_LU_X509;
340 obj->data.x509 = (X509 *)x;
342 X509_OBJECT_up_ref_count(obj);
344 CRYPTO_THREAD_write_lock(ctx->lock);
346 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
349 added = sk_X509_OBJECT_push(ctx->objs, obj);
353 CRYPTO_THREAD_unlock(ctx->lock);
355 if (added == 0) /* obj not pushed */
356 X509_OBJECT_free(obj);
361 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
363 if (!x509_store_add(ctx, x, 0)) {
364 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
370 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
372 if (!x509_store_add(ctx, x, 1)) {
373 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
379 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
385 return X509_up_ref(a->data.x509);
387 return X509_CRL_up_ref(a->data.crl);
392 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
394 if (a == NULL || a->type != X509_LU_X509)
399 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
401 if (a == NULL || a->type != X509_LU_CRL)
406 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
411 X509_OBJECT *X509_OBJECT_new(void)
413 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
416 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
419 ret->type = X509_LU_NONE;
423 static void x509_object_free_internal(X509_OBJECT *a)
431 X509_free(a->data.x509);
434 X509_CRL_free(a->data.crl);
439 int X509_OBJECT_set1_X509(X509_OBJECT *a, X509 *obj)
441 if (a == NULL || !X509_up_ref(obj))
444 x509_object_free_internal(a);
445 a->type = X509_LU_X509;
450 int X509_OBJECT_set1_X509_CRL(X509_OBJECT *a, X509_CRL *obj)
452 if (a == NULL || !X509_CRL_up_ref(obj))
455 x509_object_free_internal(a);
456 a->type = X509_LU_CRL;
461 void X509_OBJECT_free(X509_OBJECT *a)
463 x509_object_free_internal(a);
467 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
468 X509_NAME *name, int *pnmatch)
478 stmp.data.x509 = &x509_s;
479 x509_s.cert_info.subject = name;
482 stmp.data.crl = &crl_s;
483 crl_s.crl.issuer = name;
490 idx = sk_X509_OBJECT_find(h, &stmp);
491 if (idx >= 0 && pnmatch) {
493 const X509_OBJECT *tobj, *pstmp;
496 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
497 tobj = sk_X509_OBJECT_value(h, tidx);
498 if (x509_object_cmp(&tobj, &pstmp))
506 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
509 return x509_object_idx_cnt(h, type, name, NULL);
512 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
513 X509_LOOKUP_TYPE type,
517 idx = X509_OBJECT_idx_by_subject(h, type, name);
520 return sk_X509_OBJECT_value(h, idx);
523 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
528 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
531 STACK_OF(X509) *sk = NULL;
535 if (ctx->ctx == NULL)
538 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
539 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
542 * Nothing found in cache: do lookup to possibly add new objects to
545 X509_OBJECT *xobj = X509_OBJECT_new();
547 CRYPTO_THREAD_unlock(ctx->ctx->lock);
550 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
551 X509_OBJECT_free(xobj);
554 X509_OBJECT_free(xobj);
555 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
556 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
558 CRYPTO_THREAD_unlock(ctx->ctx->lock);
563 sk = sk_X509_new_null();
564 for (i = 0; i < cnt; i++, idx++) {
565 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
568 if (!sk_X509_push(sk, x)) {
569 CRYPTO_THREAD_unlock(ctx->ctx->lock);
571 sk_X509_pop_free(sk, X509_free);
575 CRYPTO_THREAD_unlock(ctx->ctx->lock);
579 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
582 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
584 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
586 /* Always do lookup to possibly add new CRLs to cache */
590 || !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
591 X509_OBJECT_free(xobj);
592 sk_X509_CRL_free(sk);
595 X509_OBJECT_free(xobj);
596 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
597 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
599 CRYPTO_THREAD_unlock(ctx->ctx->lock);
600 sk_X509_CRL_free(sk);
604 for (i = 0; i < cnt; i++, idx++) {
605 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
608 if (!sk_X509_CRL_push(sk, x)) {
609 CRYPTO_THREAD_unlock(ctx->ctx->lock);
611 sk_X509_CRL_pop_free(sk, X509_CRL_free);
615 CRYPTO_THREAD_unlock(ctx->ctx->lock);
619 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
625 idx = sk_X509_OBJECT_find(h, x);
628 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
629 return sk_X509_OBJECT_value(h, idx);
630 for (i = idx, num = sk_X509_OBJECT_num(h); i < num; i++) {
631 obj = sk_X509_OBJECT_value(h, i);
632 if (x509_object_cmp((const X509_OBJECT **)&obj,
633 (const X509_OBJECT **)&x))
635 if (x->type == X509_LU_X509) {
636 if (!X509_cmp(obj->data.x509, x->data.x509))
638 } else if (x->type == X509_LU_CRL) {
639 if (!X509_CRL_match(obj->data.crl, x->data.crl))
648 * Try to get issuer certificate from store. Due to limitations
649 * of the API this can only retrieve a single certificate matching
650 * a given subject name. However it will fill the cache with all
651 * matching certificates, so we can examine the cache for all
655 * 1 lookup successful.
656 * 0 certificate not found.
657 * -1 some other error.
659 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
662 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
668 xn = X509_get_issuer_name(x);
669 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
671 X509_OBJECT_free(obj);
674 /* If certificate matches all OK */
675 if (ctx->check_issued(ctx, x, obj->data.x509)) {
676 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
677 *issuer = obj->data.x509;
678 X509_up_ref(*issuer);
679 X509_OBJECT_free(obj);
683 X509_OBJECT_free(obj);
685 if (ctx->ctx == NULL)
688 /* Else find index of first cert accepted by 'check_issued' */
690 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
691 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
692 if (idx != -1) { /* should be true as we've had at least one
694 /* Look through all matching certs for suitable issuer */
695 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
696 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
697 /* See if we've run past the matches */
698 if (pobj->type != X509_LU_X509)
700 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
702 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
703 *issuer = pobj->data.x509;
706 * If times check, exit with match,
707 * otherwise keep looking. Leave last
708 * match in issuer so we return nearest
709 * match if no certificate time is OK.
712 if (x509_check_cert_time(ctx, *issuer, -1))
717 CRYPTO_THREAD_unlock(ctx->ctx->lock);
719 X509_up_ref(*issuer);
723 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
725 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
728 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
730 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
734 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
736 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
739 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
741 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
744 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
746 return X509_VERIFY_PARAM_set1(ctx->param, param);
749 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
754 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
756 ctx->verify = verify;
759 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
764 void X509_STORE_set_verify_cb(X509_STORE *ctx,
765 X509_STORE_CTX_verify_cb verify_cb)
767 ctx->verify_cb = verify_cb;
770 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
772 return ctx->verify_cb;
775 void X509_STORE_set_get_issuer(X509_STORE *ctx,
776 X509_STORE_CTX_get_issuer_fn get_issuer)
778 ctx->get_issuer = get_issuer;
781 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
783 return ctx->get_issuer;
786 void X509_STORE_set_check_issued(X509_STORE *ctx,
787 X509_STORE_CTX_check_issued_fn check_issued)
789 ctx->check_issued = check_issued;
792 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
794 return ctx->check_issued;
797 void X509_STORE_set_check_revocation(X509_STORE *ctx,
798 X509_STORE_CTX_check_revocation_fn check_revocation)
800 ctx->check_revocation = check_revocation;
803 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
805 return ctx->check_revocation;
808 void X509_STORE_set_get_crl(X509_STORE *ctx,
809 X509_STORE_CTX_get_crl_fn get_crl)
811 ctx->get_crl = get_crl;
814 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
819 void X509_STORE_set_check_crl(X509_STORE *ctx,
820 X509_STORE_CTX_check_crl_fn check_crl)
822 ctx->check_crl = check_crl;
825 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
827 return ctx->check_crl;
830 void X509_STORE_set_cert_crl(X509_STORE *ctx,
831 X509_STORE_CTX_cert_crl_fn cert_crl)
833 ctx->cert_crl = cert_crl;
836 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
838 return ctx->cert_crl;
841 void X509_STORE_set_check_policy(X509_STORE *ctx,
842 X509_STORE_CTX_check_policy_fn check_policy)
844 ctx->check_policy = check_policy;
847 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
849 return ctx->check_policy;
852 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
853 X509_STORE_CTX_lookup_certs_fn lookup_certs)
855 ctx->lookup_certs = lookup_certs;
858 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
860 return ctx->lookup_certs;
863 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
864 X509_STORE_CTX_lookup_crls_fn lookup_crls)
866 ctx->lookup_crls = lookup_crls;
869 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
871 return ctx->lookup_crls;
874 void X509_STORE_set_cleanup(X509_STORE *ctx,
875 X509_STORE_CTX_cleanup_fn ctx_cleanup)
877 ctx->cleanup = ctx_cleanup;
880 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
885 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
887 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
890 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
892 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
895 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)