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 static int x509_object_cmp(const X509_OBJECT *const *a,
122 const X509_OBJECT *const *b)
126 ret = ((*a)->type - (*b)->type);
129 switch ((*a)->type) {
131 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
134 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
143 X509_STORE *X509_STORE_new(void)
145 X509_STORE *ret = OPENSSL_zalloc(sizeof(*ret));
148 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
151 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL) {
152 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
156 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL) {
157 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
161 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) {
162 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
165 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
166 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
170 ret->lock = CRYPTO_THREAD_lock_new();
171 if (ret->lock == NULL) {
172 X509err(X509_F_X509_STORE_NEW, ERR_R_MALLOC_FAILURE);
180 X509_VERIFY_PARAM_free(ret->param);
181 sk_X509_OBJECT_free(ret->objs);
182 sk_X509_LOOKUP_free(ret->get_cert_methods);
187 void X509_STORE_free(X509_STORE *vfy)
190 STACK_OF(X509_LOOKUP) *sk;
195 CRYPTO_DOWN_REF(&vfy->references, &i, vfy->lock);
196 REF_PRINT_COUNT("X509_STORE", vfy);
199 REF_ASSERT_ISNT(i < 0);
201 sk = vfy->get_cert_methods;
202 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
203 lu = sk_X509_LOOKUP_value(sk, i);
204 X509_LOOKUP_shutdown(lu);
205 X509_LOOKUP_free(lu);
207 sk_X509_LOOKUP_free(sk);
208 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
210 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
211 X509_VERIFY_PARAM_free(vfy->param);
212 CRYPTO_THREAD_lock_free(vfy->lock);
216 int X509_STORE_up_ref(X509_STORE *vfy)
220 if (CRYPTO_UP_REF(&vfy->references, &i, vfy->lock) <= 0)
223 REF_PRINT_COUNT("X509_STORE", a);
224 REF_ASSERT_ISNT(i < 2);
225 return ((i > 1) ? 1 : 0);
228 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
231 STACK_OF(X509_LOOKUP) *sk;
234 sk = v->get_cert_methods;
235 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
236 lu = sk_X509_LOOKUP_value(sk, i);
237 if (m == lu->method) {
242 lu = X509_LOOKUP_new(m);
244 X509err(X509_F_X509_STORE_ADD_LOOKUP, ERR_R_MALLOC_FAILURE);
249 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
252 X509err(X509_F_X509_STORE_ADD_LOOKUP, ERR_R_MALLOC_FAILURE);
253 X509_LOOKUP_free(lu);
257 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
258 X509_LOOKUP_TYPE type,
261 X509_OBJECT *ret = X509_OBJECT_new();
265 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
266 X509_OBJECT_free(ret);
272 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
273 X509_NAME *name, X509_OBJECT *ret)
275 X509_STORE *ctx = vs->ctx;
277 X509_OBJECT stmp, *tmp;
283 CRYPTO_THREAD_write_lock(ctx->lock);
284 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
285 CRYPTO_THREAD_unlock(ctx->lock);
287 if (tmp == NULL || type == X509_LU_CRL) {
288 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
289 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
290 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
300 ret->type = tmp->type;
301 ret->data.ptr = tmp->data.ptr;
303 X509_OBJECT_up_ref_count(ret);
308 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
310 int ret = 0, added = 0;
314 obj = X509_OBJECT_new();
319 obj->type = X509_LU_CRL;
320 obj->data.crl = (X509_CRL *)x;
322 obj->type = X509_LU_X509;
323 obj->data.x509 = (X509 *)x;
325 X509_OBJECT_up_ref_count(obj);
327 CRYPTO_THREAD_write_lock(ctx->lock);
329 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
332 added = sk_X509_OBJECT_push(ctx->objs, obj);
336 CRYPTO_THREAD_unlock(ctx->lock);
338 if (added == 0) /* obj not pushed */
339 X509_OBJECT_free(obj);
344 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
346 if (!x509_store_add(ctx, x, 0)) {
347 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
353 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
355 if (!x509_store_add(ctx, x, 1)) {
356 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 if (ctx->ctx == NULL)
495 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
496 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
499 * Nothing found in cache: do lookup to possibly add new objects to
502 X509_OBJECT *xobj = X509_OBJECT_new();
504 CRYPTO_THREAD_unlock(ctx->ctx->lock);
507 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
508 X509_OBJECT_free(xobj);
511 X509_OBJECT_free(xobj);
512 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
513 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
515 CRYPTO_THREAD_unlock(ctx->ctx->lock);
520 sk = sk_X509_new_null();
521 for (i = 0; i < cnt; i++, idx++) {
522 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
525 if (!sk_X509_push(sk, x)) {
526 CRYPTO_THREAD_unlock(ctx->ctx->lock);
528 sk_X509_pop_free(sk, X509_free);
532 CRYPTO_THREAD_unlock(ctx->ctx->lock);
536 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
539 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
541 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
543 /* Always do lookup to possibly add new CRLs to cache */
547 || !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
548 X509_OBJECT_free(xobj);
549 sk_X509_CRL_free(sk);
552 X509_OBJECT_free(xobj);
553 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
554 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
556 CRYPTO_THREAD_unlock(ctx->ctx->lock);
557 sk_X509_CRL_free(sk);
561 for (i = 0; i < cnt; i++, idx++) {
562 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
565 if (!sk_X509_CRL_push(sk, x)) {
566 CRYPTO_THREAD_unlock(ctx->ctx->lock);
568 sk_X509_CRL_pop_free(sk, X509_CRL_free);
572 CRYPTO_THREAD_unlock(ctx->ctx->lock);
576 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
581 idx = sk_X509_OBJECT_find(h, x);
584 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
585 return sk_X509_OBJECT_value(h, idx);
586 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
587 obj = sk_X509_OBJECT_value(h, i);
589 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
591 if (x->type == X509_LU_X509) {
592 if (!X509_cmp(obj->data.x509, x->data.x509))
594 } else if (x->type == X509_LU_CRL) {
595 if (!X509_CRL_match(obj->data.crl, x->data.crl))
604 * Try to get issuer certificate from store. Due to limitations
605 * of the API this can only retrieve a single certificate matching
606 * a given subject name. However it will fill the cache with all
607 * matching certificates, so we can examine the cache for all
611 * 1 lookup successful.
612 * 0 certificate not found.
613 * -1 some other error.
615 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
618 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
624 xn = X509_get_issuer_name(x);
625 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
627 X509_OBJECT_free(obj);
630 /* If certificate matches all OK */
631 if (ctx->check_issued(ctx, x, obj->data.x509)) {
632 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
633 *issuer = obj->data.x509;
634 X509_up_ref(*issuer);
635 X509_OBJECT_free(obj);
639 X509_OBJECT_free(obj);
641 if (ctx->ctx == NULL)
644 /* Else find index of first cert accepted by 'check_issued' */
646 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
647 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
648 if (idx != -1) { /* should be true as we've had at least one
650 /* Look through all matching certs for suitable issuer */
651 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
652 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
653 /* See if we've run past the matches */
654 if (pobj->type != X509_LU_X509)
656 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
658 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
659 *issuer = pobj->data.x509;
662 * If times check, exit with match,
663 * otherwise keep looking. Leave last
664 * match in issuer so we return nearest
665 * match if no certificate time is OK.
668 if (x509_check_cert_time(ctx, *issuer, -1))
673 CRYPTO_THREAD_unlock(ctx->ctx->lock);
675 X509_up_ref(*issuer);
679 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
681 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
684 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
686 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
690 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
692 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
695 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
697 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
700 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
702 return X509_VERIFY_PARAM_set1(ctx->param, param);
705 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
710 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
712 ctx->verify = verify;
715 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
720 void X509_STORE_set_verify_cb(X509_STORE *ctx,
721 X509_STORE_CTX_verify_cb verify_cb)
723 ctx->verify_cb = verify_cb;
726 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
728 return ctx->verify_cb;
731 void X509_STORE_set_get_issuer(X509_STORE *ctx,
732 X509_STORE_CTX_get_issuer_fn get_issuer)
734 ctx->get_issuer = get_issuer;
737 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
739 return ctx->get_issuer;
742 void X509_STORE_set_check_issued(X509_STORE *ctx,
743 X509_STORE_CTX_check_issued_fn check_issued)
745 ctx->check_issued = check_issued;
748 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
750 return ctx->check_issued;
753 void X509_STORE_set_check_revocation(X509_STORE *ctx,
754 X509_STORE_CTX_check_revocation_fn check_revocation)
756 ctx->check_revocation = check_revocation;
759 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
761 return ctx->check_revocation;
764 void X509_STORE_set_get_crl(X509_STORE *ctx,
765 X509_STORE_CTX_get_crl_fn get_crl)
767 ctx->get_crl = get_crl;
770 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
775 void X509_STORE_set_check_crl(X509_STORE *ctx,
776 X509_STORE_CTX_check_crl_fn check_crl)
778 ctx->check_crl = check_crl;
781 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
783 return ctx->check_crl;
786 void X509_STORE_set_cert_crl(X509_STORE *ctx,
787 X509_STORE_CTX_cert_crl_fn cert_crl)
789 ctx->cert_crl = cert_crl;
792 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
794 return ctx->cert_crl;
797 void X509_STORE_set_check_policy(X509_STORE *ctx,
798 X509_STORE_CTX_check_policy_fn check_policy)
800 ctx->check_policy = check_policy;
803 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
805 return ctx->check_policy;
808 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
809 X509_STORE_CTX_lookup_certs_fn lookup_certs)
811 ctx->lookup_certs = lookup_certs;
814 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
816 return ctx->lookup_certs;
819 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
820 X509_STORE_CTX_lookup_crls_fn lookup_crls)
822 ctx->lookup_crls = lookup_crls;
825 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
827 return ctx->lookup_crls;
830 void X509_STORE_set_cleanup(X509_STORE *ctx,
831 X509_STORE_CTX_cleanup_fn ctx_cleanup)
833 ctx->cleanup = ctx_cleanup;
836 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
841 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
843 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
846 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
848 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
851 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)