1 /* crypto/x509/x509_lu.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
60 #include "internal/cryptlib.h"
61 #include <openssl/lhash.h>
62 #include <openssl/x509.h>
63 #include "internal/x509_int.h"
64 #include <openssl/x509v3.h>
67 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
71 ret = OPENSSL_malloc(sizeof(*ret));
78 ret->method_data = NULL;
79 ret->store_ctx = NULL;
80 if ((method->new_item != NULL) && !method->new_item(ret)) {
87 void X509_LOOKUP_free(X509_LOOKUP *ctx)
91 if ((ctx->method != NULL) && (ctx->method->free != NULL))
92 (*ctx->method->free) (ctx);
96 int X509_LOOKUP_init(X509_LOOKUP *ctx)
98 if (ctx->method == NULL)
100 if (ctx->method->init != NULL)
101 return ctx->method->init(ctx);
106 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
108 if (ctx->method == NULL)
110 if (ctx->method->shutdown != NULL)
111 return ctx->method->shutdown(ctx);
116 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
119 if (ctx->method == NULL)
121 if (ctx->method->ctrl != NULL)
122 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
127 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
130 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
134 return ctx->method->get_by_subject(ctx, type, name, ret);
137 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
138 ASN1_INTEGER *serial, X509_OBJECT *ret)
140 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
142 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
145 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
146 unsigned char *bytes, int len,
149 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
151 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
154 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
157 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
159 return ctx->method->get_by_alias(ctx, type, str, len, ret);
162 static int x509_object_cmp(const X509_OBJECT *const *a,
163 const X509_OBJECT *const *b)
167 ret = ((*a)->type - (*b)->type);
170 switch ((*a)->type) {
172 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
175 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
184 X509_STORE *X509_STORE_new(void)
188 if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
190 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
192 ret->get_cert_methods = sk_X509_LOOKUP_new_null();
196 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
200 ret->check_issued = 0;
201 ret->check_revocation = 0;
205 ret->lookup_certs = 0;
206 ret->lookup_crls = 0;
209 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
210 sk_X509_OBJECT_free(ret->objs);
219 static void cleanup(X509_OBJECT *a)
223 if (a->type == X509_LU_X509) {
224 X509_free(a->data.x509);
225 } else if (a->type == X509_LU_CRL) {
226 X509_CRL_free(a->data.crl);
234 void X509_STORE_free(X509_STORE *vfy)
237 STACK_OF(X509_LOOKUP) *sk;
243 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
245 REF_PRINT("X509_STORE", vfy);
251 fprintf(stderr, "X509_STORE_free, bad reference count\n");
256 sk = vfy->get_cert_methods;
257 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
258 lu = sk_X509_LOOKUP_value(sk, i);
259 X509_LOOKUP_shutdown(lu);
260 X509_LOOKUP_free(lu);
262 sk_X509_LOOKUP_free(sk);
263 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
265 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
266 X509_VERIFY_PARAM_free(vfy->param);
270 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
273 STACK_OF(X509_LOOKUP) *sk;
276 sk = v->get_cert_methods;
277 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
278 lu = sk_X509_LOOKUP_value(sk, i);
279 if (m == lu->method) {
284 lu = X509_LOOKUP_new(m);
289 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
292 X509_LOOKUP_free(lu);
298 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
299 X509_NAME *name, X509_OBJECT *ret)
301 X509_STORE *ctx = vs->ctx;
303 X509_OBJECT stmp, *tmp;
306 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
307 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
308 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
310 if (tmp == NULL || type == X509_LU_CRL) {
311 for (i = vs->current_method;
312 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
313 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
314 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
316 vs->current_method = j;
323 vs->current_method = 0;
328 /*- if (ret->data.ptr != NULL)
329 X509_OBJECT_free_contents(ret); */
331 ret->type = tmp->type;
332 ret->data.ptr = tmp->data.ptr;
334 X509_OBJECT_up_ref_count(ret);
339 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
346 obj = OPENSSL_malloc(sizeof(*obj));
348 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
351 obj->type = X509_LU_X509;
354 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
356 X509_OBJECT_up_ref_count(obj);
358 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
359 X509_OBJECT_free_contents(obj);
361 X509err(X509_F_X509_STORE_ADD_CERT,
362 X509_R_CERT_ALREADY_IN_HASH_TABLE);
365 sk_X509_OBJECT_push(ctx->objs, obj);
367 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
372 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
379 obj = OPENSSL_malloc(sizeof(*obj));
381 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
384 obj->type = X509_LU_CRL;
387 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
389 X509_OBJECT_up_ref_count(obj);
391 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
392 X509_OBJECT_free_contents(obj);
394 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
397 sk_X509_OBJECT_push(ctx->objs, obj);
399 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
404 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
410 X509_up_ref(a->data.x509);
413 X509_CRL_up_ref(a->data.crl);
418 void X509_OBJECT_free_contents(X509_OBJECT *a)
426 X509_free(a->data.x509);
429 X509_CRL_free(a->data.crl);
434 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
435 X509_NAME *name, int *pnmatch)
441 X509_CRL_INFO crl_info_s;
447 stmp.data.x509 = &x509_s;
448 x509_s.cert_info = &cinf_s;
449 cinf_s.subject = name;
452 stmp.data.crl = &crl_s;
453 crl_s.crl = &crl_info_s;
454 crl_info_s.issuer = name;
461 idx = sk_X509_OBJECT_find(h, &stmp);
462 if (idx >= 0 && pnmatch) {
464 const X509_OBJECT *tobj, *pstmp;
467 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
468 tobj = sk_X509_OBJECT_value(h, tidx);
469 if (x509_object_cmp(&tobj, &pstmp))
477 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
480 return x509_object_idx_cnt(h, type, name, NULL);
483 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
484 int type, X509_NAME *name)
487 idx = X509_OBJECT_idx_by_subject(h, type, name);
490 return sk_X509_OBJECT_value(h, idx);
493 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
499 sk = sk_X509_new_null();
500 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
501 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
504 * Nothing found in cache: do lookup to possibly add new objects to
508 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
509 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
513 X509_OBJECT_free_contents(&xobj);
514 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
515 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
517 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
522 for (i = 0; i < cnt; i++, idx++) {
523 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
526 if (!sk_X509_push(sk, x)) {
527 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
529 sk_X509_pop_free(sk, X509_free);
533 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
538 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
541 STACK_OF(X509_CRL) *sk;
543 X509_OBJECT *obj, xobj;
544 sk = sk_X509_CRL_new_null();
545 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
546 /* Check cache first */
547 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
550 * Always do lookup to possibly add new CRLs to cache
552 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
553 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
554 sk_X509_CRL_free(sk);
557 X509_OBJECT_free_contents(&xobj);
558 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
559 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
561 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
562 sk_X509_CRL_free(sk);
566 for (i = 0; i < cnt; i++, idx++) {
567 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
570 if (!sk_X509_CRL_push(sk, x)) {
571 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
573 sk_X509_CRL_pop_free(sk, X509_CRL_free);
577 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
581 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
586 idx = sk_X509_OBJECT_find(h, x);
589 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
590 return sk_X509_OBJECT_value(h, idx);
591 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
592 obj = sk_X509_OBJECT_value(h, i);
594 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
596 if (x->type == X509_LU_X509) {
597 if (!X509_cmp(obj->data.x509, x->data.x509))
599 } else if (x->type == X509_LU_CRL) {
600 if (!X509_CRL_match(obj->data.crl, x->data.crl))
609 * Try to get issuer certificate from store. Due to limitations
610 * of the API this can only retrieve a single certificate matching
611 * a given subject name. However it will fill the cache with all
612 * matching certificates, so we can examine the cache for all
616 * 1 lookup successful.
617 * 0 certificate not found.
618 * -1 some other error.
620 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
623 X509_OBJECT obj, *pobj;
626 xn = X509_get_issuer_name(x);
627 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
628 if (ok != X509_LU_X509) {
629 if (ok == X509_LU_RETRY) {
630 X509_OBJECT_free_contents(&obj);
631 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
633 } else if (ok != X509_LU_FAIL) {
634 X509_OBJECT_free_contents(&obj);
635 /* not good :-(, break anyway */
640 /* If certificate matches all OK */
641 if (ctx->check_issued(ctx, x, obj.data.x509)) {
642 if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
643 *issuer = obj.data.x509;
647 X509_OBJECT_free_contents(&obj);
649 /* Else find index of first cert accepted by 'check_issued' */
651 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
652 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
653 if (idx != -1) { /* should be true as we've had at least one
655 /* Look through all matching certs for suitable issuer */
656 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
657 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
658 /* See if we've run past the matches */
659 if (pobj->type != X509_LU_X509)
661 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
663 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
664 *issuer = pobj->data.x509;
667 * If times check, exit with match,
668 * otherwise keep looking. Leave last
669 * match in issuer so we return nearest
670 * match if no certificate time is OK.
673 if (x509_check_cert_time(ctx, *issuer, 1))
678 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
680 X509_up_ref(*issuer);
684 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
686 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
689 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
691 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
695 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
697 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
700 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
702 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
705 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
707 return X509_VERIFY_PARAM_set1(ctx->param, param);
710 void X509_STORE_set_verify_cb(X509_STORE *ctx,
711 int (*verify_cb) (int, X509_STORE_CTX *))
713 ctx->verify_cb = verify_cb;
716 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
717 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
721 ctx->lookup_crls = cb;
724 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)