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))
200 X509_VERIFY_PARAM_free(ret->param);
201 sk_X509_OBJECT_free(ret->objs);
202 sk_X509_LOOKUP_free(ret->get_cert_methods);
207 static void cleanup(X509_OBJECT *a)
211 if (a->type == X509_LU_X509) {
212 X509_free(a->data.x509);
213 } else if (a->type == X509_LU_CRL) {
214 X509_CRL_free(a->data.crl);
222 void X509_STORE_free(X509_STORE *vfy)
225 STACK_OF(X509_LOOKUP) *sk;
231 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
232 REF_PRINT_COUNT("X509_STORE", vfy);
235 REF_ASSERT_ISNT(i < 0);
237 sk = vfy->get_cert_methods;
238 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
239 lu = sk_X509_LOOKUP_value(sk, i);
240 X509_LOOKUP_shutdown(lu);
241 X509_LOOKUP_free(lu);
243 sk_X509_LOOKUP_free(sk);
244 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
246 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
247 X509_VERIFY_PARAM_free(vfy->param);
251 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
254 STACK_OF(X509_LOOKUP) *sk;
257 sk = v->get_cert_methods;
258 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
259 lu = sk_X509_LOOKUP_value(sk, i);
260 if (m == lu->method) {
265 lu = X509_LOOKUP_new(m);
270 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
273 X509_LOOKUP_free(lu);
279 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
280 X509_NAME *name, X509_OBJECT *ret)
282 X509_STORE *ctx = vs->ctx;
284 X509_OBJECT stmp, *tmp;
287 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
288 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
289 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
291 if (tmp == NULL || type == X509_LU_CRL) {
292 for (i = vs->current_method;
293 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
294 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
295 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
297 vs->current_method = j;
304 vs->current_method = 0;
309 /*- if (ret->data.ptr != NULL)
310 X509_OBJECT_free_contents(ret); */
312 ret->type = tmp->type;
313 ret->data.ptr = tmp->data.ptr;
315 X509_OBJECT_up_ref_count(ret);
320 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
327 obj = OPENSSL_malloc(sizeof(*obj));
329 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
332 obj->type = X509_LU_X509;
335 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
337 X509_OBJECT_up_ref_count(obj);
339 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
340 X509_OBJECT_free_contents(obj);
342 X509err(X509_F_X509_STORE_ADD_CERT,
343 X509_R_CERT_ALREADY_IN_HASH_TABLE);
346 sk_X509_OBJECT_push(ctx->objs, obj);
348 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
353 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
360 obj = OPENSSL_malloc(sizeof(*obj));
362 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
365 obj->type = X509_LU_CRL;
368 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
370 X509_OBJECT_up_ref_count(obj);
372 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
373 X509_OBJECT_free_contents(obj);
375 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
378 sk_X509_OBJECT_push(ctx->objs, obj);
380 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
385 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
391 X509_up_ref(a->data.x509);
394 X509_CRL_up_ref(a->data.crl);
399 void X509_OBJECT_free_contents(X509_OBJECT *a)
407 X509_free(a->data.x509);
410 X509_CRL_free(a->data.crl);
415 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
416 X509_NAME *name, int *pnmatch)
426 stmp.data.x509 = &x509_s;
427 x509_s.cert_info.subject = name;
430 stmp.data.crl = &crl_s;
431 crl_s.crl.issuer = name;
438 idx = sk_X509_OBJECT_find(h, &stmp);
439 if (idx >= 0 && pnmatch) {
441 const X509_OBJECT *tobj, *pstmp;
444 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
445 tobj = sk_X509_OBJECT_value(h, tidx);
446 if (x509_object_cmp(&tobj, &pstmp))
454 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
457 return x509_object_idx_cnt(h, type, name, NULL);
460 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
461 int type, X509_NAME *name)
464 idx = X509_OBJECT_idx_by_subject(h, type, name);
467 return sk_X509_OBJECT_value(h, idx);
470 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
476 sk = sk_X509_new_null();
477 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
478 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
481 * Nothing found in cache: do lookup to possibly add new objects to
485 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
486 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
490 X509_OBJECT_free_contents(&xobj);
491 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
492 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
494 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
499 for (i = 0; i < cnt; i++, idx++) {
500 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
503 if (!sk_X509_push(sk, x)) {
504 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
506 sk_X509_pop_free(sk, X509_free);
510 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
515 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
518 STACK_OF(X509_CRL) *sk;
520 X509_OBJECT *obj, xobj;
521 sk = sk_X509_CRL_new_null();
524 * Always do lookup to possibly add new CRLs to cache
526 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
527 sk_X509_CRL_free(sk);
530 X509_OBJECT_free_contents(&xobj);
531 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
532 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
534 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
535 sk_X509_CRL_free(sk);
539 for (i = 0; i < cnt; i++, idx++) {
540 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
543 if (!sk_X509_CRL_push(sk, x)) {
544 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
546 sk_X509_CRL_pop_free(sk, X509_CRL_free);
550 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
554 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
559 idx = sk_X509_OBJECT_find(h, x);
562 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
563 return sk_X509_OBJECT_value(h, idx);
564 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
565 obj = sk_X509_OBJECT_value(h, i);
567 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
569 if (x->type == X509_LU_X509) {
570 if (!X509_cmp(obj->data.x509, x->data.x509))
572 } else if (x->type == X509_LU_CRL) {
573 if (!X509_CRL_match(obj->data.crl, x->data.crl))
582 * Try to get issuer certificate from store. Due to limitations
583 * of the API this can only retrieve a single certificate matching
584 * a given subject name. However it will fill the cache with all
585 * matching certificates, so we can examine the cache for all
589 * 1 lookup successful.
590 * 0 certificate not found.
591 * -1 some other error.
593 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
596 X509_OBJECT obj, *pobj;
599 xn = X509_get_issuer_name(x);
600 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
601 if (ok != X509_LU_X509) {
602 if (ok == X509_LU_RETRY) {
603 X509_OBJECT_free_contents(&obj);
604 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
606 } else if (ok != X509_LU_FAIL) {
607 X509_OBJECT_free_contents(&obj);
608 /* not good :-(, break anyway */
613 /* If certificate matches all OK */
614 if (ctx->check_issued(ctx, x, obj.data.x509)) {
615 if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
616 *issuer = obj.data.x509;
620 X509_OBJECT_free_contents(&obj);
622 /* Else find index of first cert accepted by 'check_issued' */
624 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
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_w_unlock(CRYPTO_LOCK_X509_STORE);
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 void X509_STORE_set_verify_cb(X509_STORE *ctx,
684 int (*verify_cb) (int, X509_STORE_CTX *))
686 ctx->verify_cb = verify_cb;
689 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
690 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
694 ctx->lookup_crls = cb;
697 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)