[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        OSSL_NELEM(trstandard)

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(*trtmp)))) {
            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 */
0f113f3e MC	2	/*
	3	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	4	* 1999.
21f77552 DSH	5	*/
	6	/* ====================================================================
	7	* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
	8	*
	9	* Redistribution and use in source and binary forms, with or without
	10	* modification, are permitted provided that the following conditions
	11	* are met:
	12	*
	13	* 1. Redistributions of source code must retain the above copyright
0f113f3e	14	* notice, this list of conditions and the following disclaimer.
21f77552 DSH	15	*
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in
	18	* the documentation and/or other materials provided with the
	19	* distribution.
	20	*
	21	* 3. All advertising materials mentioning features or use of this
	22	* software must display the following acknowledgment:
	23	* "This product includes software developed by the OpenSSL Project
	24	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	25	*
	26	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	27	* endorse or promote products derived from this software without
	28	* prior written permission. For written permission, please contact
	29	* licensing@OpenSSL.org.
	30	*
	31	* 5. Products derived from this software may not be called "OpenSSL"
	32	* nor may "OpenSSL" appear in their names without prior written
	33	* permission of the OpenSSL Project.
	34	*
	35	* 6. Redistributions of any form whatsoever must retain the following
	36	* acknowledgment:
	37	* "This product includes software developed by the OpenSSL Project
	38	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	39	*
	40	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	41	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	42	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	43	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	44	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	45	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	46	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	47	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	49	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	50	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	51	* OF THE POSSIBILITY OF SUCH DAMAGE.
	52	* ====================================================================
	53	*
	54	* This product includes cryptographic software written by Eric Young
	55	* (eay@cryptsoft.com). This product includes software written by Tim
	56	* Hudson (tjh@cryptsoft.com).
	57	*
	58	*/
	59
	60	#include <stdio.h>
	61	#include "cryptlib.h"
	62	#include <openssl/x509v3.h>
	63
0f113f3e	64	static int tr_cmp(const X509_TRUST const a, const X509_TRUST const b);
21f77552 DSH	65	static void trtable_free(X509_TRUST *p);
21f77552 DSH	66
6447cce3	67	static int trust_1oidany(X509_TRUST trust, X509 x, int flags);
81f169e9	68	static int trust_1oid(X509_TRUST trust, X509 x, int flags);
068fdce8	69	static int trust_compat(X509_TRUST trust, X509 x, int flags);
21f77552	70
6447cce3	71	static int obj_trust(int id, X509 *x, int flags);
0f113f3e	72	static int (default_trust) (int id, X509 x, int flags) = obj_trust;
6447cce3	73
0f113f3e MC	74	/*
	75	* WARNING: the following table should be kept in order of trust and without
	76	* any gaps so we can just subtract the minimum trust value to get an index
	77	* into the table
dd413410 DSH	78	*/
dd413410 DSH	79
21f77552	80	static X509_TRUST trstandard[] = {
0f113f3e MC	81	{X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL},
	82	{X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth,
	83	NULL},
	84	{X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth,
	85	NULL},
	86	{X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect,
	87	NULL},
	88	{X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign,
	89	NULL},
	90	{X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign,
	91	NULL},
	92	{X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP,
	93	NULL},
	94	{X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL}
21f77552 DSH	95	};
21f77552 DSH	96
b6eb9827	97	#define X509_TRUST_COUNT OSSL_NELEM(trstandard)
dd413410	98
21f77552 DSH	99	static STACK_OF(X509_TRUST) *trtable = NULL;
21f77552 DSH	100
0f113f3e	101	static int tr_cmp(const X509_TRUST const a, const X509_TRUST const b)
21f77552	102	{
0f113f3e	103	return (a)->trust - (b)->trust;
21f77552 DSH	104	}
21f77552 DSH	105
0f113f3e MC	106	int (X509_TRUST_set_default(int (trust) (int, X509 , int))) (int, X509 ,
	107	int) {
	108	int (oldtrust) (int, X509 , int);
	109	oldtrust = default_trust;
	110	default_trust = trust;
	111	return oldtrust;
6447cce3 DSH	112	}
6447cce3 DSH	113
21f77552 DSH	114	int X509_check_trust(X509 *x, int id, int flags)
21f77552 DSH	115	{
0f113f3e MC	116	X509_TRUST *pt;
	117	int idx;
	118	if (id == -1)
	119	return 1;
	120	/* We get this as a default value */
	121	if (id == 0) {
	122	int rv;
	123	rv = obj_trust(NID_anyExtendedKeyUsage, x, 0);
	124	if (rv != X509_TRUST_UNTRUSTED)
	125	return rv;
	126	return trust_compat(NULL, x, 0);
	127	}
	128	idx = X509_TRUST_get_by_id(id);
	129	if (idx == -1)
	130	return default_trust(id, x, flags);
	131	pt = X509_TRUST_get0(idx);
	132	return pt->check_trust(pt, x, flags);
21f77552 DSH	133	}
	134
	135	int X509_TRUST_get_count(void)
	136	{
0f113f3e MC	137	if (!trtable)
	138	return X509_TRUST_COUNT;
	139	return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
21f77552 DSH	140	}
21f77552 DSH	141
0f113f3e	142	X509_TRUST *X509_TRUST_get0(int idx)
21f77552	143	{
0f113f3e MC	144	if (idx < 0)
	145	return NULL;
	146	if (idx < (int)X509_TRUST_COUNT)
	147	return trstandard + idx;
	148	return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
21f77552 DSH	149	}
	150
	151	int X509_TRUST_get_by_id(int id)
	152	{
0f113f3e MC	153	X509_TRUST tmp;
	154	int idx;
	155	if ((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
	156	return id - X509_TRUST_MIN;
	157	tmp.trust = id;
	158	if (!trtable)
	159	return -1;
	160	idx = sk_X509_TRUST_find(trtable, &tmp);
	161	if (idx == -1)
	162	return -1;
	163	return idx + X509_TRUST_COUNT;
21f77552 DSH	164	}
21f77552 DSH	165
926a56bf DSH	166	int X509_TRUST_set(int *t, int trust)
926a56bf DSH	167	{
0f113f3e MC	168	if (X509_TRUST_get_by_id(trust) == -1) {
	169	X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST);
	170	return 0;
	171	}
	172	*t = trust;
	173	return 1;
926a56bf DSH	174	}
926a56bf DSH	175
0f113f3e MC	176	int X509_TRUST_add(int id, int flags, int (ck) (X509_TRUST , X509 *, int),
0f113f3e MC	177	char name, int arg1, void arg2)
21f77552	178	{
0f113f3e MC	179	int idx;
	180	X509_TRUST *trtmp;
	181	/*
	182	* This is set according to what we change: application can't set it
	183	*/
	184	flags &= ~X509_TRUST_DYNAMIC;
	185	/* This will always be set for application modified trust entries */
	186	flags \|= X509_TRUST_DYNAMIC_NAME;
	187	/* Get existing entry if any */
	188	idx = X509_TRUST_get_by_id(id);
	189	/* Need a new entry */
	190	if (idx == -1) {
b4faea50	191	if (!(trtmp = OPENSSL_malloc(sizeof(*trtmp)))) {
0f113f3e MC	192	X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
	193	return 0;
	194	}
	195	trtmp->flags = X509_TRUST_DYNAMIC;
	196	} else
	197	trtmp = X509_TRUST_get0(idx);
	198
	199	/* OPENSSL_free existing name if dynamic */
	200	if (trtmp->flags & X509_TRUST_DYNAMIC_NAME)
	201	OPENSSL_free(trtmp->name);
	202	/* dup supplied name */
	203	if (!(trtmp->name = BUF_strdup(name))) {
	204	X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
	205	return 0;
	206	}
	207	/* Keep the dynamic flag of existing entry */
	208	trtmp->flags &= X509_TRUST_DYNAMIC;
	209	/* Set all other flags */
	210	trtmp->flags \|= flags;
	211
	212	trtmp->trust = id;
	213	trtmp->check_trust = ck;
	214	trtmp->arg1 = arg1;
	215	trtmp->arg2 = arg2;
	216
	217	/* If its a new entry manage the dynamic table */
	218	if (idx == -1) {
	219	if (!trtable && !(trtable = sk_X509_TRUST_new(tr_cmp))) {
	220	X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
	221	return 0;
	222	}
	223	if (!sk_X509_TRUST_push(trtable, trtmp)) {
	224	X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
	225	return 0;
	226	}
	227	}
	228	return 1;
21f77552 DSH	229	}
	230
	231	static void trtable_free(X509_TRUST *p)
0f113f3e MC	232	{
	233	if (!p)
	234	return;
	235	if (p->flags & X509_TRUST_DYNAMIC) {
	236	if (p->flags & X509_TRUST_DYNAMIC_NAME)
	237	OPENSSL_free(p->name);
	238	OPENSSL_free(p);
	239	}
	240	}
21f77552 DSH	241
	242	void X509_TRUST_cleanup(void)
	243	{
0f113f3e MC	244	unsigned int i;
	245	for (i = 0; i < X509_TRUST_COUNT; i++)
	246	trtable_free(trstandard + i);
	247	sk_X509_TRUST_pop_free(trtable, trtable_free);
	248	trtable = NULL;
21f77552 DSH	249	}
21f77552 DSH	250
dd413410	251	int X509_TRUST_get_flags(X509_TRUST *xp)
21f77552	252	{
0f113f3e	253	return xp->flags;
21f77552 DSH	254	}
21f77552 DSH	255
c7cb16a8	256	char X509_TRUST_get0_name(X509_TRUST xp)
21f77552	257	{
0f113f3e	258	return xp->name;
21f77552 DSH	259	}
	260
	261	int X509_TRUST_get_trust(X509_TRUST *xp)
	262	{
0f113f3e	263	return xp->trust;
21f77552 DSH	264	}
21f77552 DSH	265
6447cce3	266	static int trust_1oidany(X509_TRUST trust, X509 x, int flags)
21f77552	267	{
0f113f3e MC	268	if (x->aux && (x->aux->trust \|\| x->aux->reject))
	269	return obj_trust(trust->arg1, x, flags);
	270	/*
	271	* we don't have any trust settings: for compatibility we return trusted
	272	* if it is self signed
	273	*/
	274	return trust_compat(trust, x, flags);
068fdce8 DSH	275	}
068fdce8 DSH	276
81f169e9 DSH	277	static int trust_1oid(X509_TRUST trust, X509 x, int flags)
81f169e9 DSH	278	{
0f113f3e MC	279	if (x->aux)
	280	return obj_trust(trust->arg1, x, flags);
	281	return X509_TRUST_UNTRUSTED;
81f169e9 DSH	282	}
81f169e9 DSH	283
068fdce8 DSH	284	static int trust_compat(X509_TRUST trust, X509 x, int flags)
068fdce8 DSH	285	{
0f113f3e MC	286	X509_check_purpose(x, -1, 0);
	287	if (x->ex_flags & EXFLAG_SS)
	288	return X509_TRUST_TRUSTED;
	289	else
	290	return X509_TRUST_UNTRUSTED;
21f77552 DSH	291	}
21f77552 DSH	292
6447cce3 DSH	293	static int obj_trust(int id, X509 *x, int flags)
6447cce3 DSH	294	{
0f113f3e MC	295	ASN1_OBJECT *obj;
	296	int i;
	297	X509_CERT_AUX *ax;
	298	ax = x->aux;
	299	if (!ax)
	300	return X509_TRUST_UNTRUSTED;
	301	if (ax->reject) {
	302	for (i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) {
	303	obj = sk_ASN1_OBJECT_value(ax->reject, i);
	304	if (OBJ_obj2nid(obj) == id)
	305	return X509_TRUST_REJECTED;
	306	}
	307	}
	308	if (ax->trust) {
	309	for (i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) {
	310	obj = sk_ASN1_OBJECT_value(ax->trust, i);
	311	if (OBJ_obj2nid(obj) == id)
	312	return X509_TRUST_TRUSTED;
	313	}
	314	}
	315	return X509_TRUST_UNTRUSTED;
6447cce3	316	}