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 <openssl/x509v3.h>
66 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
70 ret = OPENSSL_malloc(sizeof(*ret));
77 ret->method_data = NULL;
78 ret->store_ctx = NULL;
79 if ((method->new_item != NULL) && !method->new_item(ret)) {
86 void X509_LOOKUP_free(X509_LOOKUP *ctx)
90 if ((ctx->method != NULL) && (ctx->method->free != NULL))
91 (*ctx->method->free) (ctx);
95 int X509_LOOKUP_init(X509_LOOKUP *ctx)
97 if (ctx->method == NULL)
99 if (ctx->method->init != NULL)
100 return ctx->method->init(ctx);
105 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
107 if (ctx->method == NULL)
109 if (ctx->method->shutdown != NULL)
110 return ctx->method->shutdown(ctx);
115 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
118 if (ctx->method == NULL)
120 if (ctx->method->ctrl != NULL)
121 return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
126 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
129 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
133 return ctx->method->get_by_subject(ctx, type, name, ret);
136 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
137 ASN1_INTEGER *serial, X509_OBJECT *ret)
139 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
141 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
144 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
145 unsigned char *bytes, int len,
148 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
150 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
153 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
156 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
158 return ctx->method->get_by_alias(ctx, type, str, len, ret);
161 static int x509_object_cmp(const X509_OBJECT *const *a,
162 const X509_OBJECT *const *b)
166 ret = ((*a)->type - (*b)->type);
169 switch ((*a)->type) {
171 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
174 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
183 X509_STORE *X509_STORE_new(void)
187 if ((ret = OPENSSL_malloc(sizeof(*ret))) == NULL)
189 ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
191 ret->get_cert_methods = sk_X509_LOOKUP_new_null();
195 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
199 ret->check_issued = 0;
200 ret->check_revocation = 0;
204 ret->lookup_certs = 0;
205 ret->lookup_crls = 0;
208 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) {
209 sk_X509_OBJECT_free(ret->objs);
218 static void cleanup(X509_OBJECT *a)
222 if (a->type == X509_LU_X509) {
223 X509_free(a->data.x509);
224 } else if (a->type == X509_LU_CRL) {
225 X509_CRL_free(a->data.crl);
233 void X509_STORE_free(X509_STORE *vfy)
236 STACK_OF(X509_LOOKUP) *sk;
242 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
244 REF_PRINT("X509_STORE", vfy);
250 fprintf(stderr, "X509_STORE_free, bad reference count\n");
255 sk = vfy->get_cert_methods;
256 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
257 lu = sk_X509_LOOKUP_value(sk, i);
258 X509_LOOKUP_shutdown(lu);
259 X509_LOOKUP_free(lu);
261 sk_X509_LOOKUP_free(sk);
262 sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
264 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, X509_LOOKUP_TYPE type,
298 X509_NAME *name, X509_OBJECT *ret)
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 = OPENSSL_malloc(sizeof(*obj));
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 = OPENSSL_malloc(sizeof(*obj));
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)
409 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509);
412 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL);
417 void X509_OBJECT_free_contents(X509_OBJECT *a)
425 X509_free(a->data.x509);
428 X509_CRL_free(a->data.crl);
433 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
434 X509_NAME *name, int *pnmatch)
440 X509_CRL_INFO crl_info_s;
446 stmp.data.x509 = &x509_s;
447 x509_s.cert_info = &cinf_s;
448 cinf_s.subject = name;
451 stmp.data.crl = &crl_s;
452 crl_s.crl = &crl_info_s;
453 crl_info_s.issuer = name;
460 idx = sk_X509_OBJECT_find(h, &stmp);
461 if (idx >= 0 && pnmatch) {
463 const X509_OBJECT *tobj, *pstmp;
466 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
467 tobj = sk_X509_OBJECT_value(h, tidx);
468 if (x509_object_cmp(&tobj, &pstmp))
476 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
479 return x509_object_idx_cnt(h, type, name, NULL);
482 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
483 int type, X509_NAME *name)
486 idx = X509_OBJECT_idx_by_subject(h, type, name);
489 return sk_X509_OBJECT_value(h, idx);
492 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
498 sk = sk_X509_new_null();
499 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
500 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
503 * Nothing found in cache: do lookup to possibly add new objects to
507 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
508 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
512 X509_OBJECT_free_contents(&xobj);
513 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
514 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
516 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
521 for (i = 0; i < cnt; i++, idx++) {
522 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
524 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
525 if (!sk_X509_push(sk, x)) {
526 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
528 sk_X509_pop_free(sk, X509_free);
532 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
537 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
540 STACK_OF(X509_CRL) *sk;
542 X509_OBJECT *obj, xobj;
543 sk = sk_X509_CRL_new_null();
544 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
545 /* Check cache first */
546 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
549 * Always do lookup to possibly add new CRLs to cache
551 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
552 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
553 sk_X509_CRL_free(sk);
556 X509_OBJECT_free_contents(&xobj);
557 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
558 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
560 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
561 sk_X509_CRL_free(sk);
565 for (i = 0; i < cnt; i++, idx++) {
566 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
568 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
569 if (!sk_X509_CRL_push(sk, x)) {
570 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
572 sk_X509_CRL_pop_free(sk, X509_CRL_free);
576 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
580 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
585 idx = sk_X509_OBJECT_find(h, x);
588 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
589 return sk_X509_OBJECT_value(h, idx);
590 for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
591 obj = sk_X509_OBJECT_value(h, i);
593 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
595 if (x->type == X509_LU_X509) {
596 if (!X509_cmp(obj->data.x509, x->data.x509))
598 } else if (x->type == X509_LU_CRL) {
599 if (!X509_CRL_match(obj->data.crl, x->data.crl))
608 * Try to get issuer certificate from store. Due to limitations
609 * of the API this can only retrieve a single certificate matching
610 * a given subject name. However it will fill the cache with all
611 * matching certificates, so we can examine the cache for all
615 * 1 lookup successful.
616 * 0 certificate not found.
617 * -1 some other error.
619 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
622 X509_OBJECT obj, *pobj;
625 xn = X509_get_issuer_name(x);
626 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
627 if (ok != X509_LU_X509) {
628 if (ok == X509_LU_RETRY) {
629 X509_OBJECT_free_contents(&obj);
630 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY);
632 } else if (ok != X509_LU_FAIL) {
633 X509_OBJECT_free_contents(&obj);
634 /* not good :-(, break anyway */
639 /* If certificate matches all OK */
640 if (ctx->check_issued(ctx, x, obj.data.x509)) {
641 if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
642 *issuer = obj.data.x509;
646 X509_OBJECT_free_contents(&obj);
648 /* Else find index of first cert accepted by 'check_issued' */
650 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
651 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
652 if (idx != -1) { /* should be true as we've had at least one
654 /* Look through all matching certs for suitable issuer */
655 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
656 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
657 /* See if we've run past the matches */
658 if (pobj->type != X509_LU_X509)
660 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
662 if (ctx->check_issued(ctx, x, pobj->data.x509)) {
663 *issuer = pobj->data.x509;
666 * If times check, exit with match,
667 * otherwise keep looking. Leave last
668 * match in issuer so we return nearest
669 * match if no certificate time is OK.
672 if (x509_check_cert_time(ctx, *issuer, 1))
677 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
679 CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509);
683 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
685 return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
688 int X509_STORE_set_depth(X509_STORE *ctx, int depth)
690 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
694 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
696 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
699 int X509_STORE_set_trust(X509_STORE *ctx, int trust)
701 return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
704 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
706 return X509_VERIFY_PARAM_set1(ctx->param, param);
709 void X509_STORE_set_verify_cb(X509_STORE *ctx,
710 int (*verify_cb) (int, X509_STORE_CTX *))
712 ctx->verify_cb = verify_cb;
715 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
716 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX
720 ctx->lookup_crls = cb;
723 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)