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_zalloc(sizeof(*ret));
76 if ((method->new_item != NULL) && !method->new_item(ret)) {
83 void X509_LOOKUP_free(X509_LOOKUP *ctx)
87 if ((ctx->method != NULL) && (ctx->method->free != NULL))
88 (*ctx->method->free) (ctx);
92 int X509_LOOKUP_init(X509_LOOKUP *ctx)
94 if (ctx->method == NULL)
96 if (ctx->method->init != NULL)
97 return ctx->method->init(ctx);
102 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
104 if (ctx->method == NULL)
106 if (ctx->method->shutdown != NULL)
107 return ctx->method->shutdown(ctx);
112 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
115 if (ctx->method == NULL)
117 if (ctx->method->ctrl != NULL)
118 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
123 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
126 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
130 return ctx->method->get_by_subject(ctx, type, name, ret);
133 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
134 ASN1_INTEGER *serial, X509_OBJECT *ret)
136 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
138 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
141 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
142 unsigned char *bytes, int len,
145 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
147 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
150 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
153 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
155 return ctx->method->get_by_alias(ctx, type, str, len, ret);
158 static int x509_object_cmp(const X509_OBJECT *const *a,
159 const X509_OBJECT *const *b)
163 ret = ((*a)->type - (*b)->type);
166 switch ((*a)->type) {
168 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
171 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
180 X509_STORE *X509_STORE_new(void)
184 if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)
186 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
188 ret->get_cert_methods = sk_X509_LOOKUP_new_null();
190 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
193 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
194 sk_X509_OBJECT_free(ret->objs);
203 static void cleanup(X509_OBJECT *a)
207 if (a->type == X509_LU_X509) {
208 X509_free(a->data.x509);
209 } else if (a->type == X509_LU_CRL) {
210 X509_CRL_free(a->data.crl);
218 void X509_STORE_free(X509_STORE *vfy)
221 STACK_OF(X509_LOOKUP) *sk;
227 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
229 REF_PRINT("X509_STORE", vfy);
235 fprintf(stderr, "X509_STORE_free, bad reference count\n");
240 sk = vfy->get_cert_methods;
241 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
242 lu = sk_X509_LOOKUP_value(sk, i);
243 X509_LOOKUP_shutdown(lu);
244 X509_LOOKUP_free(lu);
246 sk_X509_LOOKUP_free(sk);
247 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
249 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
250 X509_VERIFY_PARAM_free(vfy->param);
254 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
257 STACK_OF(X509_LOOKUP) *sk;
260 sk = v->get_cert_methods;
261 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
262 lu = sk_X509_LOOKUP_value(sk, i);
263 if (m == lu->method) {
268 lu = X509_LOOKUP_new(m);
273 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
276 X509_LOOKUP_free(lu);
282 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
283 X509_NAME *name, X509_OBJECT *ret)
285 X509_STORE *ctx = vs->ctx;
287 X509_OBJECT stmp, *tmp;
290 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
291 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
292 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
294 if (tmp == NULL || type == X509_LU_CRL) {
295 for (i = vs->current_method;
296 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
297 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
298 j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
300 vs->current_method = j;
307 vs->current_method = 0;
312 /*- if (ret->data.ptr != NULL)
313 X509_OBJECT_free_contents(ret); */
315 ret->type = tmp->type;
316 ret->data.ptr = tmp->data.ptr;
318 X509_OBJECT_up_ref_count(ret);
323 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
330 obj = OPENSSL_malloc(sizeof(*obj));
332 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
335 obj->type = X509_LU_X509;
338 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
340 X509_OBJECT_up_ref_count(obj);
342 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
343 X509_OBJECT_free_contents(obj);
345 X509err(X509_F_X509_STORE_ADD_CERT,
346 X509_R_CERT_ALREADY_IN_HASH_TABLE);
349 sk_X509_OBJECT_push(ctx->objs, obj);
351 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
356 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
363 obj = OPENSSL_malloc(sizeof(*obj));
365 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
368 obj->type = X509_LU_CRL;
371 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
373 X509_OBJECT_up_ref_count(obj);
375 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
376 X509_OBJECT_free_contents(obj);
378 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE);
381 sk_X509_OBJECT_push(ctx->objs, obj);
383 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
388 void X509_OBJECT_up_ref_count(X509_OBJECT *a)
394 X509_up_ref(a->data.x509);
397 X509_CRL_up_ref(a->data.crl);
402 void X509_OBJECT_free_contents(X509_OBJECT *a)
410 X509_free(a->data.x509);
413 X509_CRL_free(a->data.crl);
418 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
419 X509_NAME *name, int *pnmatch)
430 stmp.data.x509 = &x509_s;
431 x509_s.cert_info = &cinf_s;
432 cinf_s.subject = name;
435 stmp.data.crl = &crl_s;
436 crl_s.crl.issuer = name;
443 idx = sk_X509_OBJECT_find(h, &stmp);
444 if (idx >= 0 && pnmatch) {
446 const X509_OBJECT *tobj, *pstmp;
449 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
450 tobj = sk_X509_OBJECT_value(h, tidx);
451 if (x509_object_cmp(&tobj, &pstmp))
459 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
462 return x509_object_idx_cnt(h, type, name, NULL);
465 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
466 int type, X509_NAME *name)
469 idx = X509_OBJECT_idx_by_subject(h, type, name);
472 return sk_X509_OBJECT_value(h, idx);
475 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
481 sk = sk_X509_new_null();
482 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
483 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
486 * Nothing found in cache: do lookup to possibly add new objects to
490 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
491 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
495 X509_OBJECT_free_contents(&xobj);
496 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
497 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
499 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
504 for (i = 0; i < cnt; i++, idx++) {
505 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
508 if (!sk_X509_push(sk, x)) {
509 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
511 sk_X509_pop_free(sk, X509_free);
515 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
520 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
523 STACK_OF(X509_CRL) *sk;
525 X509_OBJECT *obj, xobj;
526 sk = sk_X509_CRL_new_null();
527 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
528 /* Check cache first */
529 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
532 * Always do lookup to possibly add new CRLs to cache
534 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
535 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
536 sk_X509_CRL_free(sk);
539 X509_OBJECT_free_contents(&xobj);
540 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
541 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
543 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
544 sk_X509_CRL_free(sk);
548 for (i = 0; i < cnt; i++, idx++) {
549 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
552 if (!sk_X509_CRL_push(sk, x)) {
553 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
555 sk_X509_CRL_pop_free(sk, X509_CRL_free);
559 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
563 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
568 idx = sk_X509_OBJECT_find(h, x);
571 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
572 return sk_X509_OBJECT_value(h, idx);
573 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
574 obj = sk_X509_OBJECT_value(h, i);
576 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
578 if (x->type == X509_LU_X509) {
579 if (!X509_cmp(obj->data.x509, x->data.x509))
581 } else if (x->type == X509_LU_CRL) {
582 if (!X509_CRL_match(obj->data.crl, x->data.crl))
591 * Try to get issuer certificate from store. Due to limitations
592 * of the API this can only retrieve a single certificate matching
593 * a given subject name. However it will fill the cache with all
594 * matching certificates, so we can examine the cache for all
598 * 1 lookup successful.
599 * 0 certificate not found.
600 * -1 some other error.
602 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
605 X509_OBJECT obj, *pobj;
608 xn = X509_get_issuer_name(x);
609 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
610 if (ok != X509_LU_X509) {
611 if (ok == X509_LU_RETRY) {
612 X509_OBJECT_free_contents(&obj);
613 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
615 } else if (ok != X509_LU_FAIL) {
616 X509_OBJECT_free_contents(&obj);
617 /* not good :-(, break anyway */
622 /* If certificate matches all OK */
623 if (ctx->check_issued(ctx, x, obj.data.x509)) {
624 if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
625 *issuer = obj.data.x509;
629 X509_OBJECT_free_contents(&obj);
631 /* Else find index of first cert accepted by 'check_issued' */
633 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
634 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
635 if (idx != -1) { /* should be true as we've had at least one
637 /* Look through all matching certs for suitable issuer */
638 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
639 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
640 /* See if we've run past the matches */
641 if (pobj->type != X509_LU_X509)
643 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
645 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
646 *issuer = pobj->data.x509;
649 * If times check, exit with match,
650 * otherwise keep looking. Leave last
651 * match in issuer so we return nearest
652 * match if no certificate time is OK.
655 if (x509_check_cert_time(ctx, *issuer, 1))
660 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
662 X509_up_ref(*issuer);
666 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
668 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
671 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
673 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
677 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
679 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
682 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
684 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
687 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
689 return X509_VERIFY_PARAM_set1(ctx->param, param);
692 void X509_STORE_set_verify_cb(X509_STORE *ctx,
693 int (*verify_cb) (int, X509_STORE_CTX *))
695 ctx->verify_cb = verify_cb;
698 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
699 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
703 ctx->lookup_crls = cb;
706 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)