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"
13 #include <openssl/lhash.h>
14 #include <openssl/x509.h>
15 #include "internal/x509_int.h"
16 #include <openssl/x509v3.h>
19 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
23 ret = OPENSSL_zalloc(sizeof(*ret));
28 if ((method->new_item != NULL) && !method->new_item(ret)) {
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)
147 if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
149 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL)
152 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL)
155 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
158 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
161 ret->lock = CRYPTO_THREAD_lock_new();
162 if (ret->lock == NULL)
169 X509_VERIFY_PARAM_free(ret->param);
170 sk_X509_OBJECT_free(ret->objs);
171 sk_X509_LOOKUP_free(ret->get_cert_methods);
176 void X509_STORE_free(X509_STORE *vfy)
179 STACK_OF(X509_LOOKUP) *sk;
185 CRYPTO_DOWN_REF(&vfy->references, &i, vfy->lock);
186 REF_PRINT_COUNT("X509_STORE", vfy);
189 REF_ASSERT_ISNT(i < 0);
191 sk = vfy->get_cert_methods;
192 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
193 lu = sk_X509_LOOKUP_value(sk, i);
194 X509_LOOKUP_shutdown(lu);
195 X509_LOOKUP_free(lu);
197 sk_X509_LOOKUP_free(sk);
198 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free);
200 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
201 X509_VERIFY_PARAM_free(vfy->param);
202 CRYPTO_THREAD_lock_free(vfy->lock);
206 int X509_STORE_up_ref(X509_STORE *vfy)
210 if (CRYPTO_UP_REF(&vfy->references, &i, vfy->lock) <= 0)
213 REF_PRINT_COUNT("X509_STORE", a);
214 REF_ASSERT_ISNT(i < 2);
215 return ((i > 1) ? 1 : 0);
218 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
221 STACK_OF(X509_LOOKUP) *sk;
224 sk = v->get_cert_methods;
225 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
226 lu = sk_X509_LOOKUP_value(sk, i);
227 if (m == lu->method) {
232 lu = X509_LOOKUP_new(m);
237 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
240 X509_LOOKUP_free(lu);
246 X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
247 X509_LOOKUP_TYPE type,
250 X509_OBJECT *ret = X509_OBJECT_new();
254 if (!X509_STORE_CTX_get_by_subject(vs, type, name, ret)) {
255 X509_OBJECT_free(ret);
261 int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
262 X509_NAME *name, X509_OBJECT *ret)
264 X509_STORE *ctx = vs->ctx;
266 X509_OBJECT stmp, *tmp;
269 CRYPTO_THREAD_write_lock(ctx->lock);
270 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
271 CRYPTO_THREAD_unlock(ctx->lock);
273 if (tmp == NULL || type == X509_LU_CRL) {
274 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
275 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
276 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
286 ret->type = tmp->type;
287 ret->data.ptr = tmp->data.ptr;
289 X509_OBJECT_up_ref_count(ret);
294 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
296 int ret = 0, added = 0;
300 obj = X509_OBJECT_new();
305 obj->type = X509_LU_CRL;
306 obj->data.crl = (X509_CRL *)x;
308 obj->type = X509_LU_X509;
309 obj->data.x509 = (X509 *)x;
311 X509_OBJECT_up_ref_count(obj);
313 CRYPTO_THREAD_write_lock(ctx->lock);
315 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
318 added = sk_X509_OBJECT_push(ctx->objs, obj);
322 CRYPTO_THREAD_unlock(ctx->lock);
324 if (added == 0) /* obj not pushed */
325 X509_OBJECT_free(obj);
330 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
332 if (!x509_store_add(ctx, x, 0)) {
333 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
339 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
341 if (!x509_store_add(ctx, x, 1)) {
342 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
348 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
354 return X509_up_ref(a->data.x509);
356 return X509_CRL_up_ref(a->data.crl);
361 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
363 if (a == NULL || a->type != X509_LU_X509)
368 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
370 if (a == NULL || a->type != X509_LU_CRL)
375 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
380 X509_OBJECT *X509_OBJECT_new()
382 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
385 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
388 ret->type = X509_LU_NONE;
393 void X509_OBJECT_free(X509_OBJECT *a)
401 X509_free(a->data.x509);
404 X509_CRL_free(a->data.crl);
410 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
411 X509_NAME *name, int *pnmatch)
421 stmp.data.x509 = &x509_s;
422 x509_s.cert_info.subject = name;
425 stmp.data.crl = &crl_s;
426 crl_s.crl.issuer = name;
433 idx = sk_X509_OBJECT_find(h, &stmp);
434 if (idx >= 0 && pnmatch) {
436 const X509_OBJECT *tobj, *pstmp;
439 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
440 tobj = sk_X509_OBJECT_value(h, tidx);
441 if (x509_object_cmp(&tobj, &pstmp))
449 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
452 return x509_object_idx_cnt(h, type, name, NULL);
455 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
456 X509_LOOKUP_TYPE type,
460 idx = X509_OBJECT_idx_by_subject(h, type, name);
463 return sk_X509_OBJECT_value(h, idx);
466 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
471 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
474 STACK_OF(X509) *sk = NULL;
478 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
479 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
482 * Nothing found in cache: do lookup to possibly add new objects to
485 X509_OBJECT *xobj = X509_OBJECT_new();
487 CRYPTO_THREAD_unlock(ctx->ctx->lock);
490 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
491 X509_OBJECT_free(xobj);
494 X509_OBJECT_free(xobj);
495 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
496 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
498 CRYPTO_THREAD_unlock(ctx->ctx->lock);
503 sk = sk_X509_new_null();
504 for (i = 0; i < cnt; i++, idx++) {
505 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
508 if (!sk_X509_push(sk, x)) {
509 CRYPTO_THREAD_unlock(ctx->ctx->lock);
511 sk_X509_pop_free(sk, X509_free);
515 CRYPTO_THREAD_unlock(ctx->ctx->lock);
519 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
522 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
524 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
526 /* Always do lookup to possibly add new CRLs to cache */
527 if (sk == NULL || xobj == NULL ||
528 !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
529 X509_OBJECT_free(xobj);
530 sk_X509_CRL_free(sk);
533 X509_OBJECT_free(xobj);
534 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
535 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
537 CRYPTO_THREAD_unlock(ctx->ctx->lock);
538 sk_X509_CRL_free(sk);
542 for (i = 0; i < cnt; i++, idx++) {
543 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
546 if (!sk_X509_CRL_push(sk, x)) {
547 CRYPTO_THREAD_unlock(ctx->ctx->lock);
549 sk_X509_CRL_pop_free(sk, X509_CRL_free);
553 CRYPTO_THREAD_unlock(ctx->ctx->lock);
557 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
562 idx = sk_X509_OBJECT_find(h, x);
565 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
566 return sk_X509_OBJECT_value(h, idx);
567 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
568 obj = sk_X509_OBJECT_value(h, i);
570 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
572 if (x->type == X509_LU_X509) {
573 if (!X509_cmp(obj->data.x509, x->data.x509))
575 } else if (x->type == X509_LU_CRL) {
576 if (!X509_CRL_match(obj->data.crl, x->data.crl))
585 * Try to get issuer certificate from store. Due to limitations
586 * of the API this can only retrieve a single certificate matching
587 * a given subject name. However it will fill the cache with all
588 * matching certificates, so we can examine the cache for all
592 * 1 lookup successful.
593 * 0 certificate not found.
594 * -1 some other error.
596 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
599 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
605 xn = X509_get_issuer_name(x);
606 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
608 X509_OBJECT_free(obj);
611 /* If certificate matches all OK */
612 if (ctx->check_issued(ctx, x, obj->data.x509)) {
613 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
614 *issuer = obj->data.x509;
615 X509_up_ref(*issuer);
616 X509_OBJECT_free(obj);
620 X509_OBJECT_free(obj);
622 /* Else find index of first cert accepted by 'check_issued' */
624 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
625 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
626 if (idx != -1) { /* should be true as we've had at least one
628 /* Look through all matching certs for suitable issuer */
629 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
630 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
631 /* See if we've run past the matches */
632 if (pobj->type != X509_LU_X509)
634 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
636 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
637 *issuer = pobj->data.x509;
640 * If times check, exit with match,
641 * otherwise keep looking. Leave last
642 * match in issuer so we return nearest
643 * match if no certificate time is OK.
646 if (x509_check_cert_time(ctx, *issuer, -1))
651 CRYPTO_THREAD_unlock(ctx->ctx->lock);
653 X509_up_ref(*issuer);
657 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
659 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
662 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
664 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
668 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
670 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
673 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
675 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
678 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
680 return X509_VERIFY_PARAM_set1(ctx->param, param);
683 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
688 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
690 ctx->verify = verify;
693 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
698 void X509_STORE_set_verify_cb(X509_STORE *ctx,
699 X509_STORE_CTX_verify_cb verify_cb)
701 ctx->verify_cb = verify_cb;
704 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
706 return ctx->verify_cb;
709 void X509_STORE_set_get_issuer(X509_STORE *ctx,
710 X509_STORE_CTX_get_issuer_fn get_issuer)
712 ctx->get_issuer = get_issuer;
715 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
717 return ctx->get_issuer;
720 void X509_STORE_set_check_issued(X509_STORE *ctx,
721 X509_STORE_CTX_check_issued_fn check_issued)
723 ctx->check_issued = check_issued;
726 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
728 return ctx->check_issued;
731 void X509_STORE_set_check_revocation(X509_STORE *ctx,
732 X509_STORE_CTX_check_revocation_fn check_revocation)
734 ctx->check_revocation = check_revocation;
737 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
739 return ctx->check_revocation;
742 void X509_STORE_set_get_crl(X509_STORE *ctx,
743 X509_STORE_CTX_get_crl_fn get_crl)
745 ctx->get_crl = get_crl;
748 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
753 void X509_STORE_set_check_crl(X509_STORE *ctx,
754 X509_STORE_CTX_check_crl_fn check_crl)
756 ctx->check_crl = check_crl;
759 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
761 return ctx->check_crl;
764 void X509_STORE_set_cert_crl(X509_STORE *ctx,
765 X509_STORE_CTX_cert_crl_fn cert_crl)
767 ctx->cert_crl = cert_crl;
770 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
772 return ctx->cert_crl;
775 void X509_STORE_set_check_policy(X509_STORE *ctx,
776 X509_STORE_CTX_check_policy_fn check_policy)
778 ctx->check_policy = check_policy;
781 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
783 return ctx->check_policy;
786 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
787 X509_STORE_CTX_lookup_certs_fn lookup_certs)
789 ctx->lookup_certs = lookup_certs;
792 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
794 return ctx->lookup_certs;
797 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
798 X509_STORE_CTX_lookup_crls_fn lookup_crls)
800 ctx->lookup_crls = lookup_crls;
803 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
805 return ctx->lookup_crls;
808 void X509_STORE_set_cleanup(X509_STORE *ctx,
809 X509_STORE_CTX_cleanup_fn ctx_cleanup)
811 ctx->cleanup = ctx_cleanup;
814 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
819 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
821 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
824 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
826 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
829 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)