2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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", vfy);
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 stmp.type = X509_LU_NONE;
301 stmp.data.ptr = NULL;
303 CRYPTO_THREAD_write_lock(ctx->lock);
304 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
305 CRYPTO_THREAD_unlock(ctx->lock);
307 if (tmp == NULL || type == X509_LU_CRL) {
308 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
309 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
310 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
320 ret->type = tmp->type;
321 ret->data.ptr = tmp->data.ptr;
323 X509_OBJECT_up_ref_count(ret);
328 static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
330 int ret = 0, added = 0;
334 obj = X509_OBJECT_new();
339 obj->type = X509_LU_CRL;
340 obj->data.crl = (X509_CRL *)x;
342 obj->type = X509_LU_X509;
343 obj->data.x509 = (X509 *)x;
345 X509_OBJECT_up_ref_count(obj);
347 CRYPTO_THREAD_write_lock(ctx->lock);
349 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
352 added = sk_X509_OBJECT_push(ctx->objs, obj);
356 CRYPTO_THREAD_unlock(ctx->lock);
358 if (added == 0) /* obj not pushed */
359 X509_OBJECT_free(obj);
364 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
366 if (!x509_store_add(ctx, x, 0)) {
367 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
373 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
375 if (!x509_store_add(ctx, x, 1)) {
376 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
382 int X509_OBJECT_up_ref_count(X509_OBJECT *a)
388 return X509_up_ref(a->data.x509);
390 return X509_CRL_up_ref(a->data.crl);
395 X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
397 if (a == NULL || a->type != X509_LU_X509)
402 X509_CRL *X509_OBJECT_get0_X509_CRL(X509_OBJECT *a)
404 if (a == NULL || a->type != X509_LU_CRL)
409 X509_LOOKUP_TYPE X509_OBJECT_get_type(const X509_OBJECT *a)
414 X509_OBJECT *X509_OBJECT_new(void)
416 X509_OBJECT *ret = OPENSSL_zalloc(sizeof(*ret));
419 X509err(X509_F_X509_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
422 ret->type = X509_LU_NONE;
426 static void x509_object_free_internal(X509_OBJECT *a)
434 X509_free(a->data.x509);
437 X509_CRL_free(a->data.crl);
442 int X509_OBJECT_set1_X509(X509_OBJECT *a, X509 *obj)
444 if (a == NULL || !X509_up_ref(obj))
447 x509_object_free_internal(a);
448 a->type = X509_LU_X509;
453 int X509_OBJECT_set1_X509_CRL(X509_OBJECT *a, X509_CRL *obj)
455 if (a == NULL || !X509_CRL_up_ref(obj))
458 x509_object_free_internal(a);
459 a->type = X509_LU_CRL;
464 void X509_OBJECT_free(X509_OBJECT *a)
466 x509_object_free_internal(a);
470 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
471 X509_NAME *name, int *pnmatch)
481 stmp.data.x509 = &x509_s;
482 x509_s.cert_info.subject = name;
485 stmp.data.crl = &crl_s;
486 crl_s.crl.issuer = name;
493 idx = sk_X509_OBJECT_find(h, &stmp);
494 if (idx >= 0 && pnmatch) {
496 const X509_OBJECT *tobj, *pstmp;
499 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
500 tobj = sk_X509_OBJECT_value(h, tidx);
501 if (x509_object_cmp(&tobj, &pstmp))
509 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type,
512 return x509_object_idx_cnt(h, type, name, NULL);
515 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
516 X509_LOOKUP_TYPE type,
520 idx = X509_OBJECT_idx_by_subject(h, type, name);
523 return sk_X509_OBJECT_value(h, idx);
526 STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *v)
531 STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
534 STACK_OF(X509) *sk = NULL;
538 if (ctx->ctx == NULL)
541 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
542 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
545 * Nothing found in cache: do lookup to possibly add new objects to
548 X509_OBJECT *xobj = X509_OBJECT_new();
550 CRYPTO_THREAD_unlock(ctx->ctx->lock);
553 if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
554 X509_OBJECT_free(xobj);
557 X509_OBJECT_free(xobj);
558 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
559 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
561 CRYPTO_THREAD_unlock(ctx->ctx->lock);
566 sk = sk_X509_new_null();
567 for (i = 0; i < cnt; i++, idx++) {
568 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
571 if (!sk_X509_push(sk, x)) {
572 CRYPTO_THREAD_unlock(ctx->ctx->lock);
574 sk_X509_pop_free(sk, X509_free);
578 CRYPTO_THREAD_unlock(ctx->ctx->lock);
582 STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
585 STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
587 X509_OBJECT *obj, *xobj = X509_OBJECT_new();
589 /* Always do lookup to possibly add new CRLs to cache */
593 || !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
594 X509_OBJECT_free(xobj);
595 sk_X509_CRL_free(sk);
598 X509_OBJECT_free(xobj);
599 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
600 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
602 CRYPTO_THREAD_unlock(ctx->ctx->lock);
603 sk_X509_CRL_free(sk);
607 for (i = 0; i < cnt; i++, idx++) {
608 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
611 if (!sk_X509_CRL_push(sk, x)) {
612 CRYPTO_THREAD_unlock(ctx->ctx->lock);
614 sk_X509_CRL_pop_free(sk, X509_CRL_free);
618 CRYPTO_THREAD_unlock(ctx->ctx->lock);
622 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
628 idx = sk_X509_OBJECT_find(h, x);
631 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
632 return sk_X509_OBJECT_value(h, idx);
633 for (i = idx, num = sk_X509_OBJECT_num(h); i < num; i++) {
634 obj = sk_X509_OBJECT_value(h, i);
635 if (x509_object_cmp((const X509_OBJECT **)&obj,
636 (const X509_OBJECT **)&x))
638 if (x->type == X509_LU_X509) {
639 if (!X509_cmp(obj->data.x509, x->data.x509))
641 } else if (x->type == X509_LU_CRL) {
642 if (!X509_CRL_match(obj->data.crl, x->data.crl))
651 * Try to get issuer certificate from store. Due to limitations
652 * of the API this can only retrieve a single certificate matching
653 * a given subject name. However it will fill the cache with all
654 * matching certificates, so we can examine the cache for all
658 * 1 lookup successful.
659 * 0 certificate not found.
660 * -1 some other error.
662 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
665 X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
671 xn = X509_get_issuer_name(x);
672 ok = X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, xn, obj);
674 X509_OBJECT_free(obj);
677 /* If certificate matches all OK */
678 if (ctx->check_issued(ctx, x, obj->data.x509)) {
679 if (x509_check_cert_time(ctx, obj->data.x509, -1)) {
680 *issuer = obj->data.x509;
681 X509_up_ref(*issuer);
682 X509_OBJECT_free(obj);
686 X509_OBJECT_free(obj);
688 if (ctx->ctx == NULL)
691 /* Else find index of first cert accepted by 'check_issued' */
693 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
694 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
695 if (idx != -1) { /* should be true as we've had at least one
697 /* Look through all matching certs for suitable issuer */
698 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
699 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
700 /* See if we've run past the matches */
701 if (pobj->type != X509_LU_X509)
703 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
705 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
706 *issuer = pobj->data.x509;
709 * If times check, exit with match,
710 * otherwise keep looking. Leave last
711 * match in issuer so we return nearest
712 * match if no certificate time is OK.
715 if (x509_check_cert_time(ctx, *issuer, -1))
720 CRYPTO_THREAD_unlock(ctx->ctx->lock);
722 X509_up_ref(*issuer);
726 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
728 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
731 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
733 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
737 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
739 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
742 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
744 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
747 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
749 return X509_VERIFY_PARAM_set1(ctx->param, param);
752 X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
757 void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
759 ctx->verify = verify;
762 X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
767 void X509_STORE_set_verify_cb(X509_STORE *ctx,
768 X509_STORE_CTX_verify_cb verify_cb)
770 ctx->verify_cb = verify_cb;
773 X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
775 return ctx->verify_cb;
778 void X509_STORE_set_get_issuer(X509_STORE *ctx,
779 X509_STORE_CTX_get_issuer_fn get_issuer)
781 ctx->get_issuer = get_issuer;
784 X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
786 return ctx->get_issuer;
789 void X509_STORE_set_check_issued(X509_STORE *ctx,
790 X509_STORE_CTX_check_issued_fn check_issued)
792 ctx->check_issued = check_issued;
795 X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
797 return ctx->check_issued;
800 void X509_STORE_set_check_revocation(X509_STORE *ctx,
801 X509_STORE_CTX_check_revocation_fn check_revocation)
803 ctx->check_revocation = check_revocation;
806 X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
808 return ctx->check_revocation;
811 void X509_STORE_set_get_crl(X509_STORE *ctx,
812 X509_STORE_CTX_get_crl_fn get_crl)
814 ctx->get_crl = get_crl;
817 X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
822 void X509_STORE_set_check_crl(X509_STORE *ctx,
823 X509_STORE_CTX_check_crl_fn check_crl)
825 ctx->check_crl = check_crl;
828 X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
830 return ctx->check_crl;
833 void X509_STORE_set_cert_crl(X509_STORE *ctx,
834 X509_STORE_CTX_cert_crl_fn cert_crl)
836 ctx->cert_crl = cert_crl;
839 X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
841 return ctx->cert_crl;
844 void X509_STORE_set_check_policy(X509_STORE *ctx,
845 X509_STORE_CTX_check_policy_fn check_policy)
847 ctx->check_policy = check_policy;
850 X509_STORE_CTX_check_policy_fn X509_STORE_get_check_policy(X509_STORE *ctx)
852 return ctx->check_policy;
855 void X509_STORE_set_lookup_certs(X509_STORE *ctx,
856 X509_STORE_CTX_lookup_certs_fn lookup_certs)
858 ctx->lookup_certs = lookup_certs;
861 X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
863 return ctx->lookup_certs;
866 void X509_STORE_set_lookup_crls(X509_STORE *ctx,
867 X509_STORE_CTX_lookup_crls_fn lookup_crls)
869 ctx->lookup_crls = lookup_crls;
872 X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
874 return ctx->lookup_crls;
877 void X509_STORE_set_cleanup(X509_STORE *ctx,
878 X509_STORE_CTX_cleanup_fn ctx_cleanup)
880 ctx->cleanup = ctx_cleanup;
883 X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
888 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
890 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
893 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
895 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
898 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)