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.]
61 #include <openssl/lhash.h>
62 #include <openssl/x509.h>
63 #include <openssl/x509v3.h>
65 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
69 ret = (X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
76 ret->method_data = NULL;
77 ret->store_ctx = NULL;
78 if ((method->new_item != NULL) && !method->new_item(ret)) {
85 void X509_LOOKUP_free(X509_LOOKUP *ctx)
89 if ((ctx->method != NULL) && (ctx->method->free != NULL))
90 (*ctx->method->free) (ctx);
94 int X509_LOOKUP_init(X509_LOOKUP *ctx)
96 if (ctx->method == NULL)
98 if (ctx->method->init != NULL)
99 return ctx->method->init(ctx);
104 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
106 if (ctx->method == NULL)
108 if (ctx->method->shutdown != NULL)
109 return ctx->method->shutdown(ctx);
114 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
117 if (ctx->method == NULL)
119 if (ctx->method->ctrl != NULL)
120 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
125 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
128 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
132 return ctx->method->get_by_subject(ctx, type, name, ret);
135 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
136 ASN1_INTEGER *serial, X509_OBJECT *ret)
138 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
140 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
143 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
144 unsigned char *bytes, int len,
147 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
149 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
152 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
155 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
157 return ctx->method->get_by_alias(ctx, type, str, len, ret);
160 static int x509_object_cmp(const X509_OBJECT *const *a,
161 const X509_OBJECT *const *b)
165 ret = ((*a)->type - (*b)->type);
168 switch ((*a)->type) {
170 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
173 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
182 X509_STORE *X509_STORE_new(void)
186 if ((ret = (X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
188 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
190 ret->get_cert_methods = sk_X509_LOOKUP_new_null();
194 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
198 ret->check_issued = 0;
199 ret->check_revocation = 0;
203 ret->lookup_certs = 0;
204 ret->lookup_crls = 0;
207 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
208 sk_X509_OBJECT_free(ret->objs);
217 static void cleanup(X509_OBJECT *a)
221 if (a->type == X509_LU_X509) {
222 X509_free(a->data.x509);
223 } else if (a->type == X509_LU_CRL) {
224 X509_CRL_free(a->data.crl);
232 void X509_STORE_free(X509_STORE *vfy)
235 STACK_OF(X509_LOOKUP) *sk;
241 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
243 REF_PRINT("X509_STORE", vfy);
249 fprintf(stderr, "X509_STORE_free, bad reference count\n");
254 sk = vfy->get_cert_methods;
255 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
256 lu = sk_X509_LOOKUP_value(sk, i);
257 X509_LOOKUP_shutdown(lu);
258 X509_LOOKUP_free(lu);
260 sk_X509_LOOKUP_free(sk);
261 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
263 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
265 X509_VERIFY_PARAM_free(vfy->param);
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 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
300 X509_STORE *ctx = vs->ctx;
302 X509_OBJECT stmp, *tmp;
305 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
306 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
307 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
309 if (tmp == NULL || type == X509_LU_CRL) {
310 for (i = vs->current_method;
311 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
312 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
313 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
315 vs->current_method = j;
322 vs->current_method = 0;
327 /*- if (ret->data.ptr != NULL)
328 X509_OBJECT_free_contents(ret); */
330 ret->type = tmp->type;
331 ret->data.ptr = tmp->data.ptr;
333 X509_OBJECT_up_ref_count(ret);
338 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
345 obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
347 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
350 obj->type = X509_LU_X509;
353 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
355 X509_OBJECT_up_ref_count(obj);
357 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
358 X509_OBJECT_free_contents(obj);
360 X509err(X509_F_X509_STORE_ADD_CERT,
361 X509_R_CERT_ALREADY_IN_HASH_TABLE);
364 sk_X509_OBJECT_push(ctx->objs, obj);
366 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
371 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
378 obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
380 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
383 obj->type = X509_LU_CRL;
386 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
388 X509_OBJECT_up_ref_count(obj);
390 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
391 X509_OBJECT_free_contents(obj);
393 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
396 sk_X509_OBJECT_push(ctx->objs, obj);
398 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
403 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
407 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509);
410 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL);
415 void X509_OBJECT_free_contents(X509_OBJECT *a)
419 X509_free(a->data.x509);
422 X509_CRL_free(a->data.crl);
427 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
428 X509_NAME *name, int *pnmatch)
434 X509_CRL_INFO crl_info_s;
440 stmp.data.x509 = &x509_s;
441 x509_s.cert_info = &cinf_s;
442 cinf_s.subject = name;
445 stmp.data.crl = &crl_s;
446 crl_s.crl = &crl_info_s;
447 crl_info_s.issuer = name;
454 idx = sk_X509_OBJECT_find(h, &stmp);
455 if (idx >= 0 && pnmatch) {
457 const X509_OBJECT *tobj, *pstmp;
460 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
461 tobj = sk_X509_OBJECT_value(h, tidx);
462 if (x509_object_cmp(&tobj, &pstmp))
470 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
473 return x509_object_idx_cnt(h, type, name, NULL);
476 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
477 int type, X509_NAME *name)
480 idx = X509_OBJECT_idx_by_subject(h, type, name);
483 return sk_X509_OBJECT_value(h, idx);
486 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
492 sk = sk_X509_new_null();
493 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
494 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
497 * Nothing found in cache: do lookup to possibly add new objects to
501 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
502 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
506 X509_OBJECT_free_contents(&xobj);
507 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
508 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
510 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
515 for (i = 0; i < cnt; i++, idx++) {
516 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
518 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
519 if (!sk_X509_push(sk, x)) {
520 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
522 sk_X509_pop_free(sk, X509_free);
526 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
531 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
534 STACK_OF(X509_CRL) *sk;
536 X509_OBJECT *obj, xobj;
537 sk = sk_X509_CRL_new_null();
538 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
541 * Always do lookup to possibly add new CRLs to cache
543 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
544 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
545 sk_X509_CRL_free(sk);
548 X509_OBJECT_free_contents(&xobj);
549 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
550 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
552 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
553 sk_X509_CRL_free(sk);
557 for (i = 0; i < cnt; i++, idx++) {
558 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
560 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
561 if (!sk_X509_CRL_push(sk, x)) {
562 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
564 sk_X509_CRL_pop_free(sk, X509_CRL_free);
568 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
572 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
577 idx = sk_X509_OBJECT_find(h, x);
580 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
581 return sk_X509_OBJECT_value(h, idx);
582 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
583 obj = sk_X509_OBJECT_value(h, i);
585 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
587 if (x->type == X509_LU_X509) {
588 if (!X509_cmp(obj->data.x509, x->data.x509))
590 } else if (x->type == X509_LU_CRL) {
591 if (!X509_CRL_match(obj->data.crl, x->data.crl))
600 * Try to get issuer certificate from store. Due to limitations
601 * of the API this can only retrieve a single certificate matching
602 * a given subject name. However it will fill the cache with all
603 * matching certificates, so we can examine the cache for all
607 * 1 lookup successful.
608 * 0 certificate not found.
609 * -1 some other error.
611 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
614 X509_OBJECT obj, *pobj;
616 xn = X509_get_issuer_name(x);
617 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
618 if (ok != X509_LU_X509) {
619 if (ok == X509_LU_RETRY) {
620 X509_OBJECT_free_contents(&obj);
621 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
623 } else if (ok != X509_LU_FAIL) {
624 X509_OBJECT_free_contents(&obj);
625 /* not good :-(, break anyway */
630 /* If certificate matches all OK */
631 if (ctx->check_issued(ctx, x, obj.data.x509)) {
632 *issuer = obj.data.x509;
635 X509_OBJECT_free_contents(&obj);
637 /* Else find index of first cert accepted by 'check_issued' */
639 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
640 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
641 if (idx != -1) { /* should be true as we've had at least one
643 /* Look through all matching certs for suitable issuer */
644 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
645 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
646 /* See if we've run past the matches */
647 if (pobj->type != X509_LU_X509)
649 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
651 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
652 *issuer = pobj->data.x509;
653 X509_OBJECT_up_ref_count(pobj);
659 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
663 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
665 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
668 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
670 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
674 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
676 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
679 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
681 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
684 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
686 return X509_VERIFY_PARAM_set1(ctx->param, param);
689 void X509_STORE_set_verify_cb(X509_STORE *ctx,
690 int (*verify_cb) (int, X509_STORE_CTX *))
692 ctx->verify_cb = verify_cb;
695 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
696 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
700 ctx->lookup_crls = cb;
703 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)
708 IMPLEMENT_STACK_OF(X509_LOOKUP)
710 IMPLEMENT_STACK_OF(X509_OBJECT)