1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
59 #include "internal/cryptlib.h"
60 #include <openssl/lhash.h>
61 #include <openssl/x509.h>
62 #include "internal/x509_int.h"
63 #include <openssl/x509v3.h>
66 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
70 ret = OPENSSL_zalloc(sizeof(*ret));
75 if ((method->new_item != NULL) && !method->new_item(ret)) {
82 void X509_LOOKUP_free(X509_LOOKUP *ctx)
86 if ((ctx->method != NULL) && (ctx->method->free != NULL))
87 (*ctx->method->free) (ctx);
91 int X509_LOOKUP_init(X509_LOOKUP *ctx)
93 if (ctx->method == NULL)
95 if (ctx->method->init != NULL)
96 return ctx->method->init(ctx);
101 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
103 if (ctx->method == NULL)
105 if (ctx->method->shutdown != NULL)
106 return ctx->method->shutdown(ctx);
111 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
114 if (ctx->method == NULL)
116 if (ctx->method->ctrl != NULL)
117 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
122 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
125 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
129 return ctx->method->get_by_subject(ctx, type, name, ret);
132 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
133 ASN1_INTEGER *serial, X509_OBJECT *ret)
135 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
137 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
140 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
141 unsigned char *bytes, int len,
144 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
146 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
149 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
152 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
154 return ctx->method->get_by_alias(ctx, type, str, len, ret);
157 static int x509_object_cmp(const X509_OBJECT *const *a,
158 const X509_OBJECT *const *b)
162 ret = ((*a)->type - (*b)->type);
165 switch ((*a)->type) {
167 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
170 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
179 X509_STORE *X509_STORE_new(void)
183 if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
185 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL)
188 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL)
191 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
194 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
197 ret->lock = CRYPTO_THREAD_lock_new();
198 if (ret->lock == NULL)
205 X509_VERIFY_PARAM_free(ret->param);
206 sk_X509_OBJECT_free(ret->objs);
207 sk_X509_LOOKUP_free(ret->get_cert_methods);
212 static void cleanup(X509_OBJECT *a)
216 if (a->type == X509_LU_X509) {
217 X509_free(a->data.x509);
218 } else if (a->type == X509_LU_CRL) {
219 X509_CRL_free(a->data.crl);
227 void X509_STORE_free(X509_STORE *vfy)
230 STACK_OF(X509_LOOKUP) *sk;
236 CRYPTO_atomic_add(&vfy->references, -1, &i, vfy->lock);
237 REF_PRINT_COUNT("X509_STORE", vfy);
240 REF_ASSERT_ISNT(i < 0);
242 sk = vfy->get_cert_methods;
243 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
244 lu = sk_X509_LOOKUP_value(sk, i);
245 X509_LOOKUP_shutdown(lu);
246 X509_LOOKUP_free(lu);
248 sk_X509_LOOKUP_free(sk);
249 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
251 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
252 X509_VERIFY_PARAM_free(vfy->param);
253 CRYPTO_THREAD_lock_free(vfy->lock);
257 int X509_STORE_up_ref(X509_STORE *vfy)
261 if (CRYPTO_atomic_add(&vfy->references, 1, &i, vfy->lock) <= 0)
264 REF_PRINT_COUNT("X509_STORE", a);
265 REF_ASSERT_ISNT(i < 2);
266 return ((i > 1) ? 1 : 0);
269 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
272 STACK_OF(X509_LOOKUP) *sk;
275 sk = v->get_cert_methods;
276 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
277 lu = sk_X509_LOOKUP_value(sk, i);
278 if (m == lu->method) {
283 lu = X509_LOOKUP_new(m);
288 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
291 X509_LOOKUP_free(lu);
297 X509_OBJECT *X509_STORE_get_X509_by_subject(X509_STORE_CTX *vs, int type,
302 ret = OPENSSL_malloc(sizeof (*ret));
304 X509err(X509_F_X509_STORE_GET_X509_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
307 if (!X509_STORE_get_by_subject(vs, type, name, ret)) {
314 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
315 X509_NAME *name, X509_OBJECT *ret)
317 X509_STORE *ctx = vs->ctx;
319 X509_OBJECT stmp, *tmp;
322 CRYPTO_THREAD_write_lock(ctx->lock);
323 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
324 CRYPTO_THREAD_unlock(ctx->lock);
326 if (tmp == NULL || type == X509_LU_CRL) {
327 for (i = vs->current_method;
328 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
329 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
330 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
332 vs->current_method = j;
339 vs->current_method = 0;
344 /*- if (ret->data.ptr != NULL)
345 X509_OBJECT_free_contents(ret); */
347 ret->type = tmp->type;
348 ret->data.ptr = tmp->data.ptr;
350 X509_OBJECT_up_ref_count(ret);
355 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
362 obj = OPENSSL_malloc(sizeof(*obj));
364 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
367 obj->type = X509_LU_X509;
370 CRYPTO_THREAD_write_lock(ctx->lock);
372 X509_OBJECT_up_ref_count(obj);
374 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
375 X509_OBJECT_free_contents(obj);
377 X509err(X509_F_X509_STORE_ADD_CERT,
378 X509_R_CERT_ALREADY_IN_HASH_TABLE);
381 sk_X509_OBJECT_push(ctx->objs, obj);
383 CRYPTO_THREAD_unlock(ctx->lock);
388 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
395 obj = OPENSSL_malloc(sizeof(*obj));
397 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
400 obj->type = X509_LU_CRL;
403 CRYPTO_THREAD_write_lock(ctx->lock);
405 X509_OBJECT_up_ref_count(obj);
407 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
408 X509_OBJECT_free_contents(obj);
410 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
413 sk_X509_OBJECT_push(ctx->objs, obj);
415 CRYPTO_THREAD_unlock(ctx->lock);
420 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
426 X509_up_ref(a->data.x509);
429 X509_CRL_up_ref(a->data.crl);
434 X509 *X509_OBJECT_get0_X509(X509_OBJECT *a)
439 void X509_OBJECT_free(X509_OBJECT *a)
443 X509_OBJECT_free_contents(a);
447 void X509_OBJECT_free_contents(X509_OBJECT *a)
455 X509_free(a->data.x509);
458 X509_CRL_free(a->data.crl);
463 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
464 X509_NAME *name, int *pnmatch)
474 stmp.data.x509 = &x509_s;
475 x509_s.cert_info.subject = name;
478 stmp.data.crl = &crl_s;
479 crl_s.crl.issuer = name;
486 idx = sk_X509_OBJECT_find(h, &stmp);
487 if (idx >= 0 && pnmatch) {
489 const X509_OBJECT *tobj, *pstmp;
492 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
493 tobj = sk_X509_OBJECT_value(h, tidx);
494 if (x509_object_cmp(&tobj, &pstmp))
502 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
505 return x509_object_idx_cnt(h, type, name, NULL);
508 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
509 int type, X509_NAME *name)
512 idx = X509_OBJECT_idx_by_subject(h, type, name);
515 return sk_X509_OBJECT_value(h, idx);
518 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
524 sk = sk_X509_new_null();
525 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
526 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
529 * Nothing found in cache: do lookup to possibly add new objects to
533 CRYPTO_THREAD_unlock(ctx->ctx->lock);
534 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
538 X509_OBJECT_free_contents(&xobj);
539 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
540 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
542 CRYPTO_THREAD_unlock(ctx->ctx->lock);
547 for (i = 0; i < cnt; i++, idx++) {
548 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
551 if (!sk_X509_push(sk, x)) {
552 CRYPTO_THREAD_unlock(ctx->ctx->lock);
554 sk_X509_pop_free(sk, X509_free);
558 CRYPTO_THREAD_unlock(ctx->ctx->lock);
563 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
566 STACK_OF(X509_CRL) *sk;
568 X509_OBJECT *obj, xobj;
569 sk = sk_X509_CRL_new_null();
572 * Always do lookup to possibly add new CRLs to cache
574 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
575 sk_X509_CRL_free(sk);
578 X509_OBJECT_free_contents(&xobj);
579 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
580 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
582 CRYPTO_THREAD_unlock(ctx->ctx->lock);
583 sk_X509_CRL_free(sk);
587 for (i = 0; i < cnt; i++, idx++) {
588 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
591 if (!sk_X509_CRL_push(sk, x)) {
592 CRYPTO_THREAD_unlock(ctx->ctx->lock);
594 sk_X509_CRL_pop_free(sk, X509_CRL_free);
598 CRYPTO_THREAD_unlock(ctx->ctx->lock);
602 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
607 idx = sk_X509_OBJECT_find(h, x);
610 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
611 return sk_X509_OBJECT_value(h, idx);
612 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
613 obj = sk_X509_OBJECT_value(h, i);
615 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
617 if (x->type == X509_LU_X509) {
618 if (!X509_cmp(obj->data.x509, x->data.x509))
620 } else if (x->type == X509_LU_CRL) {
621 if (!X509_CRL_match(obj->data.crl, x->data.crl))
630 * Try to get issuer certificate from store. Due to limitations
631 * of the API this can only retrieve a single certificate matching
632 * a given subject name. However it will fill the cache with all
633 * matching certificates, so we can examine the cache for all
637 * 1 lookup successful.
638 * 0 certificate not found.
639 * -1 some other error.
641 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
644 X509_OBJECT obj, *pobj;
648 xn = X509_get_issuer_name(x);
649 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
650 if (ok != X509_LU_X509) {
651 if (ok == X509_LU_RETRY) {
652 X509_OBJECT_free_contents(&obj);
653 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
655 } else if (ok != X509_LU_FAIL) {
656 X509_OBJECT_free_contents(&obj);
657 /* not good :-(, break anyway */
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;
669 X509_OBJECT_free_contents(&obj);
671 /* Else find index of first cert accepted by 'check_issued' */
673 CRYPTO_THREAD_write_lock(ctx->ctx->lock);
674 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
675 if (idx != -1) { /* should be true as we've had at least one
677 /* Look through all matching certs for suitable issuer */
678 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
679 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
680 /* See if we've run past the matches */
681 if (pobj->type != X509_LU_X509)
683 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
685 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
686 *issuer = pobj->data.x509;
689 * If times check, exit with match,
690 * otherwise keep looking. Leave last
691 * match in issuer so we return nearest
692 * match if no certificate time is OK.
695 if (x509_check_cert_time(ctx, *issuer, -1))
700 CRYPTO_THREAD_unlock(ctx->ctx->lock);
702 X509_up_ref(*issuer);
706 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
708 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
711 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
713 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
717 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
719 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
722 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
724 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
727 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
729 return X509_VERIFY_PARAM_set1(ctx->param, param);
732 void X509_STORE_set_verify_cb(X509_STORE *ctx,
733 int (*verify_cb) (int, X509_STORE_CTX *))
735 ctx->verify_cb = verify_cb;
738 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
739 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
743 ctx->lookup_crls = cb;
746 int X509_STORE_set_ex_data(X509_STORE *ctx, int idx, void *data)
748 return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
751 void *X509_STORE_get_ex_data(X509_STORE *ctx, int idx)
753 return CRYPTO_get_ex_data(&ctx->ex_data, idx);
756 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)