[thirdparty/openssl.git] / crypto / x509 / x509_trs.c

/* x509_trs.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) 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;
	/* We get this as a default value */
	if (id == 0)
		{
		int rv;
		rv = obj_trust(NID_anyExtendedKeyUsage, x, 0);
		if (rv != X509_TRUST_UNTRUSTED)
			return rv;
		return trust_compat(NULL, x, 0);
		}
	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;
}
Commit	Line	Data
21f77552	1	/* x509_trs.c */
2e597528	2	/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
21f77552 DSH	3	* project 1999.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
	59	#include <stdio.h>
	60	#include "cryptlib.h"
	61	#include <openssl/x509v3.h>
	62
	63
ccd86b68 GT	64	static int tr_cmp(const X509_TRUST * const *a,
ccd86b68 GT	65	const X509_TRUST * const *b);
21f77552 DSH	66	static void trtable_free(X509_TRUST *p);
21f77552 DSH	67
6447cce3	68	static int trust_1oidany(X509_TRUST trust, X509 x, int flags);
81f169e9	69	static int trust_1oid(X509_TRUST trust, X509 x, int flags);
068fdce8	70	static int trust_compat(X509_TRUST trust, X509 x, int flags);
21f77552	71
6447cce3 DSH	72	static int obj_trust(int id, X509 *x, int flags);
	73	static int (default_trust)(int id, X509 x, int flags) = obj_trust;
	74
dd413410 DSH	75	/* WARNING: the following table should be kept in order of trust
	76	* and without any gaps so we can just subtract the minimum trust
	77	* value to get an index into the table
	78	*/
	79
21f77552	80	static X509_TRUST trstandard[] = {
068fdce8	81	{X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL},
6447cce3	82	{X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth, NULL},
98e66549	83	{X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth, NULL},
6447cce3	84	{X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect, NULL},
33862b90	85	{X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign, NULL},
fafc7f98	86	{X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign, NULL},
c7235be6 UM	87	{X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP, NULL},
c7235be6 UM	88	{X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL}
21f77552 DSH	89	};
21f77552 DSH	90
dd413410 DSH	91	#define X509_TRUST_COUNT (sizeof(trstandard)/sizeof(X509_TRUST))
dd413410 DSH	92
21f77552 DSH	93	IMPLEMENT_STACK_OF(X509_TRUST)
	94
	95	static STACK_OF(X509_TRUST) *trtable = NULL;
	96
ccd86b68 GT	97	static int tr_cmp(const X509_TRUST * const *a,
ccd86b68 GT	98	const X509_TRUST * const *b)
21f77552	99	{
dd413410	100	return (a)->trust - (b)->trust;
21f77552 DSH	101	}
21f77552 DSH	102
6447cce3 DSH	103	int (X509_TRUST_set_default(int (trust)(int , X509 , int)))(int, X509 , int)
6447cce3 DSH	104	{
78f3a2aa BM	105	int (oldtrust)(int , X509 , int);
	106	oldtrust = default_trust;
	107	default_trust = trust;
	108	return oldtrust;
6447cce3 DSH	109	}
	110
	111
21f77552 DSH	112	int X509_check_trust(X509 *x, int id, int flags)
21f77552 DSH	113	{
21f77552	114	X509_TRUST *pt;
dd413410	115	int idx;
21f77552	116	if(id == -1) return 1;
fbd21640 DSH	117	/* We get this as a default value */
	118	if (id == 0)
	119	{
	120	int rv;
	121	rv = obj_trust(NID_anyExtendedKeyUsage, x, 0);
	122	if (rv != X509_TRUST_UNTRUSTED)
	123	return rv;
	124	return trust_compat(NULL, x, 0);
	125	}
068fdce8 DSH	126	idx = X509_TRUST_get_by_id(id);
068fdce8 DSH	127	if(idx == -1) return default_trust(id, x, flags);
6d0d5431	128	pt = X509_TRUST_get0(idx);
21f77552 DSH	129	return pt->check_trust(pt, x, flags);
	130	}
	131
	132	int X509_TRUST_get_count(void)
	133	{
dd413410 DSH	134	if(!trtable) return X509_TRUST_COUNT;
dd413410 DSH	135	return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
21f77552 DSH	136	}
21f77552 DSH	137
6d0d5431	138	X509_TRUST * X509_TRUST_get0(int idx)
21f77552	139	{
dd413410	140	if(idx < 0) return NULL;
27545970	141	if(idx < (int)X509_TRUST_COUNT) return trstandard + idx;
dd413410	142	return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
21f77552 DSH	143	}
	144
	145	int X509_TRUST_get_by_id(int id)
	146	{
	147	X509_TRUST tmp;
dd413410 DSH	148	int idx;
	149	if((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
	150	return id - X509_TRUST_MIN;
	151	tmp.trust = id;
21f77552	152	if(!trtable) return -1;
dd413410 DSH	153	idx = sk_X509_TRUST_find(trtable, &tmp);
	154	if(idx == -1) return -1;
	155	return idx + X509_TRUST_COUNT;
21f77552 DSH	156	}
21f77552 DSH	157
926a56bf DSH	158	int X509_TRUST_set(int *t, int trust)
	159	{
	160	if(X509_TRUST_get_by_id(trust) == -1) {
	161	X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST);
	162	return 0;
	163	}
	164	*t = trust;
	165	return 1;
	166	}
	167
dd413410 DSH	168	int X509_TRUST_add(int id, int flags, int (ck)(X509_TRUST , X509 *, int),
dd413410 DSH	169	char name, int arg1, void arg2)
21f77552 DSH	170	{
21f77552 DSH	171	int idx;
dd413410 DSH	172	X509_TRUST *trtmp;
	173	/* This is set according to what we change: application can't set it */
	174	flags &= ~X509_TRUST_DYNAMIC;
	175	/* This will always be set for application modified trust entries */
	176	flags \|= X509_TRUST_DYNAMIC_NAME;
	177	/* Get existing entry if any */
	178	idx = X509_TRUST_get_by_id(id);
	179	/* Need a new entry */
	180	if(idx == -1) {
26a3a48d	181	if(!(trtmp = OPENSSL_malloc(sizeof(X509_TRUST)))) {
21f77552 DSH	182	X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
21f77552 DSH	183	return 0;
21f77552	184	}
dd413410	185	trtmp->flags = X509_TRUST_DYNAMIC;
6d0d5431	186	} else trtmp = X509_TRUST_get0(idx);
dd413410	187
26a3a48d RL	188	/* OPENSSL_free existing name if dynamic */
26a3a48d RL	189	if(trtmp->flags & X509_TRUST_DYNAMIC_NAME) OPENSSL_free(trtmp->name);
dd413410 DSH	190	/* dup supplied name */
	191	if(!(trtmp->name = BUF_strdup(name))) {
	192	X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
	193	return 0;
	194	}
	195	/* Keep the dynamic flag of existing entry */
	196	trtmp->flags &= X509_TRUST_DYNAMIC;
	197	/* Set all other flags */
	198	trtmp->flags \|= flags;
	199
	200	trtmp->trust = id;
	201	trtmp->check_trust = ck;
	202	trtmp->arg1 = arg1;
	203	trtmp->arg2 = arg2;
	204
	205	/* If its a new entry manage the dynamic table */
	206	if(idx == -1) {
	207	if(!trtable && !(trtable = sk_X509_TRUST_new(tr_cmp))) {
	208	X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
	209	return 0;
	210	}
	211	if (!sk_X509_TRUST_push(trtable, trtmp)) {
21f77552 DSH	212	X509err(X509_F_X509_TRUST_ADD,ERR_R_MALLOC_FAILURE);
	213	return 0;
	214	}
	215	}
	216	return 1;
	217	}
	218
	219	static void trtable_free(X509_TRUST *p)
	220	{
	221	if(!p) return;
dd413410	222	if (p->flags & X509_TRUST_DYNAMIC)
21f77552	223	{
dd413410	224	if (p->flags & X509_TRUST_DYNAMIC_NAME)
26a3a48d RL	225	OPENSSL_free(p->name);
26a3a48d RL	226	OPENSSL_free(p);
21f77552 DSH	227	}
	228	}
	229
	230	void X509_TRUST_cleanup(void)
	231	{
27545970	232	unsigned int i;
dd413410	233	for(i = 0; i < X509_TRUST_COUNT; i++) trtable_free(trstandard + i);
21f77552 DSH	234	sk_X509_TRUST_pop_free(trtable, trtable_free);
	235	trtable = NULL;
	236	}
	237
dd413410	238	int X509_TRUST_get_flags(X509_TRUST *xp)
21f77552	239	{
dd413410	240	return xp->flags;
21f77552 DSH	241	}
21f77552 DSH	242
c7cb16a8	243	char X509_TRUST_get0_name(X509_TRUST xp)
21f77552	244	{
dd413410	245	return xp->name;
21f77552 DSH	246	}
	247
	248	int X509_TRUST_get_trust(X509_TRUST *xp)
	249	{
dd413410	250	return xp->trust;
21f77552 DSH	251	}
21f77552 DSH	252
6447cce3	253	static int trust_1oidany(X509_TRUST trust, X509 x, int flags)
21f77552	254	{
76c919c1 DSH	255	if(x->aux && (x->aux->trust \|\| x->aux->reject))
76c919c1 DSH	256	return obj_trust(trust->arg1, x, flags);
657e60fa	257	/* we don't have any trust settings: for compatibility
21f77552 DSH	258	* we return trusted if it is self signed
21f77552 DSH	259	*/
068fdce8 DSH	260	return trust_compat(trust, x, flags);
	261	}
	262
81f169e9 DSH	263	static int trust_1oid(X509_TRUST trust, X509 x, int flags)
	264	{
	265	if(x->aux) return obj_trust(trust->arg1, x, flags);
	266	return X509_TRUST_UNTRUSTED;
	267	}
	268
068fdce8 DSH	269	static int trust_compat(X509_TRUST trust, X509 x, int flags)
068fdce8 DSH	270	{
21f77552 DSH	271	X509_check_purpose(x, -1, 0);
	272	if(x->ex_flags & EXFLAG_SS) return X509_TRUST_TRUSTED;
	273	else return X509_TRUST_UNTRUSTED;
	274	}
	275
6447cce3 DSH	276	static int obj_trust(int id, X509 *x, int flags)
	277	{
	278	ASN1_OBJECT *obj;
	279	int i;
	280	X509_CERT_AUX *ax;
	281	ax = x->aux;
	282	if(!ax) return X509_TRUST_UNTRUSTED;
	283	if(ax->reject) {
	284	for(i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) {
	285	obj = sk_ASN1_OBJECT_value(ax->reject, i);
	286	if(OBJ_obj2nid(obj) == id) return X509_TRUST_REJECTED;
	287	}
	288	}
	289	if(ax->trust) {
	290	for(i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) {
	291	obj = sk_ASN1_OBJECT_value(ax->trust, i);
	292	if(OBJ_obj2nid(obj) == id) return X509_TRUST_TRUSTED;
	293	}
	294	}
	295	return X509_TRUST_UNTRUSTED;
	296	}
	297