123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288 |
- /* x509_trs.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
- */
- /* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- #include <stdio.h>
- #include "cryptlib.h"
- #include <openssl/x509v3.h>
- static int tr_cmp(const X509_TRUST * const *a,
- const X509_TRUST * const *b);
- static void trtable_free(X509_TRUST *p);
- static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags);
- static int trust_1oid(X509_TRUST *trust, X509 *x, int flags);
- static int trust_compat(X509_TRUST *trust, X509 *x, int flags);
- static int obj_trust(int id, X509 *x, int flags);
- static int (*default_trust)(int id, X509 *x, int flags) = obj_trust;
- /* WARNING: the following table should be kept in order of trust
- * and without any gaps so we can just subtract the minimum trust
- * value to get an index into the table
- */
- static X509_TRUST trstandard[] = {
- {X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL},
- {X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth, NULL},
- {X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth, NULL},
- {X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect, NULL},
- {X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign, NULL},
- {X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign, NULL},
- {X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP, NULL},
- {X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL}
- };
- #define X509_TRUST_COUNT (sizeof(trstandard)/sizeof(X509_TRUST))
- IMPLEMENT_STACK_OF(X509_TRUST)
- static STACK_OF(X509_TRUST) *trtable = NULL;
- static int tr_cmp(const X509_TRUST * const *a,
- const X509_TRUST * const *b)
- {
- return (*a)->trust - (*b)->trust;
- }
- int (*X509_TRUST_set_default(int (*trust)(int , X509 *, int)))(int, X509 *, int)
- {
- int (*oldtrust)(int , X509 *, int);
- oldtrust = default_trust;
- default_trust = trust;
- return oldtrust;
- }
- int X509_check_trust(X509 *x, int id, int flags)
- {
- X509_TRUST *pt;
- int idx;
- if(id == -1) return 1;
- idx = X509_TRUST_get_by_id(id);
- if(idx == -1) return default_trust(id, x, flags);
- pt = X509_TRUST_get0(idx);
- return pt->check_trust(pt, x, flags);
- }
- int X509_TRUST_get_count(void)
- {
- if(!trtable) return X509_TRUST_COUNT;
- return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
- }
- X509_TRUST * X509_TRUST_get0(int idx)
- {
- if(idx < 0) return NULL;
- if(idx < (int)X509_TRUST_COUNT) return trstandard + idx;
- return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
- }
- int X509_TRUST_get_by_id(int id)
- {
- X509_TRUST tmp;
- int idx;
- if((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
- return id - X509_TRUST_MIN;
- tmp.trust = id;
- if(!trtable) return -1;
- idx = sk_X509_TRUST_find(trtable, &tmp);
- if(idx == -1) return -1;
- return idx + X509_TRUST_COUNT;
- }
- int X509_TRUST_set(int *t, int trust)
- {
- if(X509_TRUST_get_by_id(trust) == -1) {
- X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST);
- return 0;
- }
- *t = trust;
- return 1;
- }
- int X509_TRUST_add(int id, int flags, int (*ck)(X509_TRUST *, X509 *, int),
- char *name, int arg1, void *arg2)
- {
- int idx;
- X509_TRUST *trtmp;
- /* This is set according to what we change: application can't set it */
- flags &= ~X509_TRUST_DYNAMIC;
- /* This will always be set for application modified trust entries */
- flags |= X509_TRUST_DYNAMIC_NAME;
- /* Get existing entry if any */
- idx = X509_TRUST_get_by_id(id);
- /* Need a new entry */
- if(idx == -1) {
- if(!(trtmp = OPENSSL_malloc(sizeof(X509_TRUST)))) {
- X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- trtmp->flags = X509_TRUST_DYNAMIC;
- } else trtmp = X509_TRUST_get0(idx);
- /* OPENSSL_free existing name if dynamic */
- if(trtmp->flags & X509_TRUST_DYNAMIC_NAME) OPENSSL_free(trtmp->name);
- /* dup supplied name */
- if(!(trtmp->name = BUF_strdup(name))) {
- X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- /* Keep the dynamic flag of existing entry */
- trtmp->flags &= X509_TRUST_DYNAMIC;
- /* Set all other flags */
- trtmp->flags |= flags;
- trtmp->trust = id;
- trtmp->check_trust = ck;
- trtmp->arg1 = arg1;
- trtmp->arg2 = arg2;
- /* If its a new entry manage the dynamic table */
- if(idx == -1) {
- if(!trtable && !(trtable = sk_X509_TRUST_new(tr_cmp))) {
- X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if (!sk_X509_TRUST_push(trtable, trtmp)) {
- X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- }
- return 1;
- }
- static void trtable_free(X509_TRUST *p)
- {
- if(!p) return;
- if (p->flags & X509_TRUST_DYNAMIC)
- {
- if (p->flags & X509_TRUST_DYNAMIC_NAME)
- OPENSSL_free(p->name);
- OPENSSL_free(p);
- }
- }
- void X509_TRUST_cleanup(void)
- {
- unsigned int i;
- for(i = 0; i < X509_TRUST_COUNT; i++) trtable_free(trstandard + i);
- sk_X509_TRUST_pop_free(trtable, trtable_free);
- trtable = NULL;
- }
- int X509_TRUST_get_flags(X509_TRUST *xp)
- {
- return xp->flags;
- }
- char *X509_TRUST_get0_name(X509_TRUST *xp)
- {
- return xp->name;
- }
- int X509_TRUST_get_trust(X509_TRUST *xp)
- {
- return xp->trust;
- }
- static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags)
- {
- if(x->aux && (x->aux->trust || x->aux->reject))
- return obj_trust(trust->arg1, x, flags);
- /* we don't have any trust settings: for compatibility
- * we return trusted if it is self signed
- */
- return trust_compat(trust, x, flags);
- }
- static int trust_1oid(X509_TRUST *trust, X509 *x, int flags)
- {
- if(x->aux) return obj_trust(trust->arg1, x, flags);
- return X509_TRUST_UNTRUSTED;
- }
- static int trust_compat(X509_TRUST *trust, X509 *x, int flags)
- {
- X509_check_purpose(x, -1, 0);
- if(x->ex_flags & EXFLAG_SS) return X509_TRUST_TRUSTED;
- else return X509_TRUST_UNTRUSTED;
- }
- static int obj_trust(int id, X509 *x, int flags)
- {
- ASN1_OBJECT *obj;
- int i;
- X509_CERT_AUX *ax;
- ax = x->aux;
- if(!ax) return X509_TRUST_UNTRUSTED;
- if(ax->reject) {
- for(i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) {
- obj = sk_ASN1_OBJECT_value(ax->reject, i);
- if(OBJ_obj2nid(obj) == id) return X509_TRUST_REJECTED;
- }
- }
- if(ax->trust) {
- for(i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) {
- obj = sk_ASN1_OBJECT_value(ax->trust, i);
- if(OBJ_obj2nid(obj) == id) return X509_TRUST_TRUSTED;
- }
- }
- return X509_TRUST_UNTRUSTED;
- }
|