[thirdparty/openssl.git] / crypto / x509 / x509_vpm.c

/* x509_vpm.c */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2004.
 */
/* ====================================================================
 * Copyright (c) 2004 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/crypto.h>
#include <openssl/lhash.h>
#include <openssl/buffer.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

/* X509_VERIFY_PARAM functions */

static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
{
    if (!param)
        return;
    param->name = NULL;
    param->purpose = 0;
    param->trust = 0;
    param->inh_flags = 0;
    param->flags = 0;
    param->depth = -1;
    if (param->policies) {
        sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
        param->policies = NULL;
    }
}

X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
{
    X509_VERIFY_PARAM *param;
    param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
    memset(param, 0, sizeof(X509_VERIFY_PARAM));
    x509_verify_param_zero(param);
    return param;
}

void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
{
    x509_verify_param_zero(param);
    OPENSSL_free(param);
}

/*-
 * This function determines how parameters are "inherited" from one structure
 * to another. There are several different ways this can happen.
 *
 * 1. If a child structure needs to have its values initialized from a parent
 *    they are simply copied across. For example SSL_CTX copied to SSL.
 * 2. If the structure should take on values only if they are currently unset.
 *    For example the values in an SSL structure will take appropriate value
 *    for SSL servers or clients but only if the application has not set new
 *    ones.
 *
 * The "inh_flags" field determines how this function behaves.
 *
 * Normally any values which are set in the default are not copied from the
 * destination and verify flags are ORed together.
 *
 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
 * to the destination. Effectively the values in "to" become default values
 * which will be used only if nothing new is set in "from".
 *
 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
 * they are set or not. Flags is still Ored though.
 *
 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
 * of ORed.
 *
 * If X509_VP_FLAG_LOCKED is set then no values are copied.
 *
 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
 * after the next call.
 */

/* Macro to test if a field should be copied from src to dest */

#define test_x509_verify_param_copy(field, def) \
        (to_overwrite || \
                ((src->field != def) && (to_default || (dest->field == def))))

/* Macro to test and copy a field if necessary */

#define x509_verify_param_copy(field, def) \
        if (test_x509_verify_param_copy(field, def)) \
                dest->field = src->field

int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
                              const X509_VERIFY_PARAM *src)
{
    unsigned long inh_flags;
    int to_default, to_overwrite;
    if (!src)
        return 1;
    inh_flags = dest->inh_flags | src->inh_flags;

    if (inh_flags & X509_VP_FLAG_ONCE)
        dest->inh_flags = 0;

    if (inh_flags & X509_VP_FLAG_LOCKED)
        return 1;

    if (inh_flags & X509_VP_FLAG_DEFAULT)
        to_default = 1;
    else
        to_default = 0;

    if (inh_flags & X509_VP_FLAG_OVERWRITE)
        to_overwrite = 1;
    else
        to_overwrite = 0;

    x509_verify_param_copy(purpose, 0);
    x509_verify_param_copy(trust, 0);
    x509_verify_param_copy(depth, -1);

    /* If overwrite or check time not set, copy across */

    if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) {
        dest->check_time = src->check_time;
        dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
        /* Don't need to copy flag: that is done below */
    }

    if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
        dest->flags = 0;

    dest->flags |= src->flags;

    if (test_x509_verify_param_copy(policies, NULL)) {
        if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
            return 0;
    }

    return 1;
}

int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
                           const X509_VERIFY_PARAM *from)
{
    unsigned long save_flags = to->inh_flags;
    int ret;
    to->inh_flags |= X509_VP_FLAG_DEFAULT;
    ret = X509_VERIFY_PARAM_inherit(to, from);
    to->inh_flags = save_flags;
    return ret;
}

int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
{
    if (param->name)
        OPENSSL_free(param->name);
    param->name = BUF_strdup(name);
    if (param->name)
        return 1;
    return 0;
}

int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
{
    param->flags |= flags;
    if (flags & X509_V_FLAG_POLICY_MASK)
        param->flags |= X509_V_FLAG_POLICY_CHECK;
    return 1;
}

int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
                                  unsigned long flags)
{
    param->flags &= ~flags;
    return 1;
}

unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
{
    return param->flags;
}

int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
{
    return X509_PURPOSE_set(&param->purpose, purpose);
}

int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
{
    return X509_TRUST_set(&param->trust, trust);
}

void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
{
    param->depth = depth;
}

void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
{
    param->check_time = t;
    param->flags |= X509_V_FLAG_USE_CHECK_TIME;
}

int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
                                  ASN1_OBJECT *policy)
{
    if (!param->policies) {
        param->policies = sk_ASN1_OBJECT_new_null();
        if (!param->policies)
            return 0;
    }
    if (!sk_ASN1_OBJECT_push(param->policies, policy))
        return 0;
    return 1;
}

int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
                                    STACK_OF(ASN1_OBJECT) *policies)
{
    int i;
    ASN1_OBJECT *oid, *doid;
    if (!param)
        return 0;
    if (param->policies)
        sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);

    if (!policies) {
        param->policies = NULL;
        return 1;
    }

    param->policies = sk_ASN1_OBJECT_new_null();
    if (!param->policies)
        return 0;

    for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) {
        oid = sk_ASN1_OBJECT_value(policies, i);
        doid = OBJ_dup(oid);
        if (!doid)
            return 0;
        if (!sk_ASN1_OBJECT_push(param->policies, doid)) {
            ASN1_OBJECT_free(doid);
            return 0;
        }
    }
    param->flags |= X509_V_FLAG_POLICY_CHECK;
    return 1;
}

int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
{
    return param->depth;
}

/*
 * Default verify parameters: these are used for various applications and can
 * be overridden by the user specified table. NB: the 'name' field *must* be
 * in alphabetical order because it will be searched using OBJ_search.
 */

static const X509_VERIFY_PARAM default_table[] = {
    {
     "default",                 /* X509 default parameters */
     0,                         /* Check time */
     0,                         /* internal flags */
     0,                         /* flags */
     0,                         /* purpose */
     0,                         /* trust */
     100,                       /* depth */
     NULL                       /* policies */
     },
    {
     "pkcs7",                   /* S/MIME signing parameters */
     0,                         /* Check time */
     0,                         /* internal flags */
     0,                         /* flags */
     X509_PURPOSE_SMIME_SIGN,   /* purpose */
     X509_TRUST_EMAIL,          /* trust */
     -1,                        /* depth */
     NULL                       /* policies */
     },
    {
     "smime_sign",              /* S/MIME signing parameters */
     0,                         /* Check time */
     0,                         /* internal flags */
     0,                         /* flags */
     X509_PURPOSE_SMIME_SIGN,   /* purpose */
     X509_TRUST_EMAIL,          /* trust */
     -1,                        /* depth */
     NULL                       /* policies */
     },
    {
     "ssl_client",              /* SSL/TLS client parameters */
     0,                         /* Check time */
     0,                         /* internal flags */
     0,                         /* flags */
     X509_PURPOSE_SSL_CLIENT,   /* purpose */
     X509_TRUST_SSL_CLIENT,     /* trust */
     -1,                        /* depth */
     NULL                       /* policies */
     },
    {
     "ssl_server",              /* SSL/TLS server parameters */
     0,                         /* Check time */
     0,                         /* internal flags */
     0,                         /* flags */
     X509_PURPOSE_SSL_SERVER,   /* purpose */
     X509_TRUST_SSL_SERVER,     /* trust */
     -1,                        /* depth */
     NULL                       /* policies */
     }
};

static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;

static int table_cmp(const void *pa, const void *pb)
{
    const X509_VERIFY_PARAM *a = pa, *b = pb;
    return strcmp(a->name, b->name);
}

static int param_cmp(const X509_VERIFY_PARAM *const *a,
                     const X509_VERIFY_PARAM *const *b)
{
    return strcmp((*a)->name, (*b)->name);
}

int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
{
    int idx;
    X509_VERIFY_PARAM *ptmp;
    if (!param_table) {
        param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
        if (!param_table)
            return 0;
    } else {
        idx = sk_X509_VERIFY_PARAM_find(param_table, param);
        if (idx != -1) {
            ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
            X509_VERIFY_PARAM_free(ptmp);
            (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
        }
    }
    if (!sk_X509_VERIFY_PARAM_push(param_table, param))
        return 0;
    return 1;
}

const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
{
    int idx;
    X509_VERIFY_PARAM pm;
    pm.name = (char *)name;
    if (param_table) {
        idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
        if (idx != -1)
            return sk_X509_VERIFY_PARAM_value(param_table, idx);
    }
    return (const X509_VERIFY_PARAM *)OBJ_bsearch((char *)&pm,
                                                  (char *)&default_table,
                                                  sizeof(default_table) /
                                                  sizeof(X509_VERIFY_PARAM),
                                                  sizeof(X509_VERIFY_PARAM),
                                                  table_cmp);
}

void X509_VERIFY_PARAM_table_cleanup(void)
{
    if (param_table)
        sk_X509_VERIFY_PARAM_pop_free(param_table, X509_VERIFY_PARAM_free);
    param_table = NULL;
}
Commit	Line	Data
5d7c222d	1	/* x509_vpm.c */
40720ce3 MC	2	/*
	3	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	4	* 2004.
5d7c222d DSH	5	*/
	6	/* ====================================================================
	7	* Copyright (c) 2004 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
40720ce3	14	* notice, this list of conditions and the following disclaimer.
5d7c222d 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
	62	#include "cryptlib.h"
	63	#include <openssl/crypto.h>
	64	#include <openssl/lhash.h>
	65	#include <openssl/buffer.h>
	66	#include <openssl/x509.h>
	67	#include <openssl/x509v3.h>
	68
	69	/* X509_VERIFY_PARAM functions */
	70
	71	static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
40720ce3 MC	72	{
	73	if (!param)
	74	return;
	75	param->name = NULL;
	76	param->purpose = 0;
	77	param->trust = 0;
	78	param->inh_flags = 0;
	79	param->flags = 0;
	80	param->depth = -1;
	81	if (param->policies) {
	82	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
	83	param->policies = NULL;
	84	}
	85	}
5d7c222d DSH	86
5d7c222d DSH	87	X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
40720ce3 MC	88	{
	89	X509_VERIFY_PARAM *param;
	90	param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
	91	memset(param, 0, sizeof(X509_VERIFY_PARAM));
	92	x509_verify_param_zero(param);
	93	return param;
	94	}
5d7c222d DSH	95
5d7c222d DSH	96	void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
40720ce3 MC	97	{
	98	x509_verify_param_zero(param);
	99	OPENSSL_free(param);
	100	}
5d7c222d	101
b558c8d5 TH	102	/*-
b558c8d5 TH	103	* This function determines how parameters are "inherited" from one structure
5d7c222d DSH	104	* to another. There are several different ways this can happen.
	105	*
	106	* 1. If a child structure needs to have its values initialized from a parent
	107	* they are simply copied across. For example SSL_CTX copied to SSL.
	108	* 2. If the structure should take on values only if they are currently unset.
	109	* For example the values in an SSL structure will take appropriate value
	110	* for SSL servers or clients but only if the application has not set new
	111	* ones.
	112	*
40720ce3	113	* The "inh_flags" field determines how this function behaves.
5d7c222d DSH	114	*
	115	* Normally any values which are set in the default are not copied from the
	116	* destination and verify flags are ORed together.
	117	*
	118	* If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
	119	* to the destination. Effectively the values in "to" become default values
	120	* which will be used only if nothing new is set in "from".
	121	*
	122	* If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
	123	* they are set or not. Flags is still Ored though.
	124	*
	125	* If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
	126	* of ORed.
	127	*
	128	* If X509_VP_FLAG_LOCKED is set then no values are copied.
	129	*
	130	* If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
	131	* after the next call.
	132	*/
	133
	134	/* Macro to test if a field should be copied from src to dest */
	135
	136	#define test_x509_verify_param_copy(field, def) \
40720ce3 MC	137	(to_overwrite \|\| \
40720ce3 MC	138	((src->field != def) && (to_default \|\| (dest->field == def))))
5d7c222d DSH	139
	140	/* Macro to test and copy a field if necessary */
	141
	142	#define x509_verify_param_copy(field, def) \
40720ce3 MC	143	if (test_x509_verify_param_copy(field, def)) \
40720ce3 MC	144	dest->field = src->field
5d7c222d DSH	145
5d7c222d DSH	146	int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
40720ce3 MC	147	const X509_VERIFY_PARAM *src)
	148	{
	149	unsigned long inh_flags;
	150	int to_default, to_overwrite;
	151	if (!src)
	152	return 1;
	153	inh_flags = dest->inh_flags \| src->inh_flags;
5d7c222d	154
40720ce3 MC	155	if (inh_flags & X509_VP_FLAG_ONCE)
40720ce3 MC	156	dest->inh_flags = 0;
5d7c222d	157
40720ce3 MC	158	if (inh_flags & X509_VP_FLAG_LOCKED)
40720ce3 MC	159	return 1;
5d7c222d	160
40720ce3 MC	161	if (inh_flags & X509_VP_FLAG_DEFAULT)
	162	to_default = 1;
	163	else
	164	to_default = 0;
5d7c222d	165
40720ce3 MC	166	if (inh_flags & X509_VP_FLAG_OVERWRITE)
	167	to_overwrite = 1;
	168	else
	169	to_overwrite = 0;
5d7c222d	170
40720ce3 MC	171	x509_verify_param_copy(purpose, 0);
	172	x509_verify_param_copy(trust, 0);
	173	x509_verify_param_copy(depth, -1);
5d7c222d	174
40720ce3	175	/* If overwrite or check time not set, copy across */
db0edc32	176
40720ce3 MC	177	if (to_overwrite \|\| !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) {
	178	dest->check_time = src->check_time;
	179	dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
	180	/* Don't need to copy flag: that is done below */
	181	}
db0edc32	182
40720ce3 MC	183	if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
40720ce3 MC	184	dest->flags = 0;
5d7c222d	185
40720ce3	186	dest->flags \|= src->flags;
5d7c222d	187
40720ce3 MC	188	if (test_x509_verify_param_copy(policies, NULL)) {
	189	if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
	190	return 0;
	191	}
5d7c222d	192
40720ce3 MC	193	return 1;
40720ce3 MC	194	}
5d7c222d DSH	195
5d7c222d DSH	196	int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
40720ce3 MC	197	const X509_VERIFY_PARAM *from)
	198	{
	199	unsigned long save_flags = to->inh_flags;
	200	int ret;
	201	to->inh_flags \|= X509_VP_FLAG_DEFAULT;
	202	ret = X509_VERIFY_PARAM_inherit(to, from);
	203	to->inh_flags = save_flags;
	204	return ret;
	205	}
5d7c222d DSH	206
5d7c222d DSH	207	int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM param, const char name)
40720ce3 MC	208	{
	209	if (param->name)
	210	OPENSSL_free(param->name);
	211	param->name = BUF_strdup(name);
	212	if (param->name)
	213	return 1;
	214	return 0;
	215	}
5d7c222d DSH	216
5d7c222d DSH	217	int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
40720ce3 MC	218	{
	219	param->flags \|= flags;
	220	if (flags & X509_V_FLAG_POLICY_MASK)
	221	param->flags \|= X509_V_FLAG_POLICY_CHECK;
	222	return 1;
	223	}
	224
	225	int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
	226	unsigned long flags)
	227	{
	228	param->flags &= ~flags;
	229	return 1;
	230	}
0fce007b DSH	231
0fce007b DSH	232	unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
40720ce3 MC	233	{
	234	return param->flags;
	235	}
0fce007b	236
5d7c222d	237	int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
40720ce3 MC	238	{
	239	return X509_PURPOSE_set(&param->purpose, purpose);
	240	}
5d7c222d DSH	241
5d7c222d DSH	242	int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
40720ce3 MC	243	{
	244	return X509_TRUST_set(&param->trust, trust);
	245	}
5d7c222d DSH	246
5d7c222d DSH	247	void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
40720ce3 MC	248	{
	249	param->depth = depth;
	250	}
5d7c222d DSH	251
5d7c222d DSH	252	void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
40720ce3 MC	253	{
	254	param->check_time = t;
	255	param->flags \|= X509_V_FLAG_USE_CHECK_TIME;
	256	}
	257
	258	int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
	259	ASN1_OBJECT *policy)
	260	{
	261	if (!param->policies) {
	262	param->policies = sk_ASN1_OBJECT_new_null();
	263	if (!param->policies)
	264	return 0;
	265	}
	266	if (!sk_ASN1_OBJECT_push(param->policies, policy))
	267	return 0;
	268	return 1;
	269	}
	270
	271	int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
	272	STACK_OF(ASN1_OBJECT) *policies)
	273	{
	274	int i;
	275	ASN1_OBJECT oid, doid;
	276	if (!param)
	277	return 0;
	278	if (param->policies)
	279	sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
	280
	281	if (!policies) {
	282	param->policies = NULL;
	283	return 1;
	284	}
	285
	286	param->policies = sk_ASN1_OBJECT_new_null();
	287	if (!param->policies)
	288	return 0;
	289
	290	for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) {
	291	oid = sk_ASN1_OBJECT_value(policies, i);
	292	doid = OBJ_dup(oid);
	293	if (!doid)
	294	return 0;
	295	if (!sk_ASN1_OBJECT_push(param->policies, doid)) {
	296	ASN1_OBJECT_free(doid);
	297	return 0;
	298	}
	299	}
	300	param->flags \|= X509_V_FLAG_POLICY_CHECK;
	301	return 1;
	302	}
5d7c222d DSH	303
5d7c222d DSH	304	int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
40720ce3 MC	305	{
	306	return param->depth;
	307	}
	308
	309	/*
	310	* Default verify parameters: these are used for various applications and can
	311	* be overridden by the user specified table. NB: the 'name' field must be
	312	* in alphabetical order because it will be searched using OBJ_search.
5d7c222d DSH	313	*/
	314
	315	static const X509_VERIFY_PARAM default_table[] = {
40720ce3 MC	316	{
	317	"default", /* X509 default parameters */
	318	0, /* Check time */
	319	0, /* internal flags */
	320	0, /* flags */
	321	0, /* purpose */
	322	0, /* trust */
	323	100, /* depth */
	324	NULL /* policies */
	325	},
	326	{
	327	"pkcs7", /* S/MIME signing parameters */
	328	0, /* Check time */
	329	0, /* internal flags */
	330	0, /* flags */
	331	X509_PURPOSE_SMIME_SIGN, /* purpose */
	332	X509_TRUST_EMAIL, /* trust */
	333	-1, /* depth */
	334	NULL /* policies */
	335	},
	336	{
	337	"smime_sign", /* S/MIME signing parameters */
	338	0, /* Check time */
	339	0, /* internal flags */
	340	0, /* flags */
	341	X509_PURPOSE_SMIME_SIGN, /* purpose */
	342	X509_TRUST_EMAIL, /* trust */
	343	-1, /* depth */
	344	NULL /* policies */
	345	},
	346	{
	347	"ssl_client", /* SSL/TLS client parameters */
	348	0, /* Check time */
	349	0, /* internal flags */
	350	0, /* flags */
	351	X509_PURPOSE_SSL_CLIENT, /* purpose */
	352	X509_TRUST_SSL_CLIENT, /* trust */
	353	-1, /* depth */
	354	NULL /* policies */
	355	},
	356	{
	357	"ssl_server", /* SSL/TLS server parameters */
	358	0, /* Check time */
	359	0, /* internal flags */
	360	0, /* flags */
	361	X509_PURPOSE_SSL_SERVER, /* purpose */
	362	X509_TRUST_SSL_SERVER, /* trust */
	363	-1, /* depth */
	364	NULL /* policies */
	365	}
	366	};
5d7c222d DSH	367
	368	static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
	369
	370	static int table_cmp(const void pa, const void pb)
40720ce3 MC	371	{
	372	const X509_VERIFY_PARAM a = pa, b = pb;
	373	return strcmp(a->name, b->name);
	374	}
5d7c222d	375
40720ce3 MC	376	static int param_cmp(const X509_VERIFY_PARAM const a,
	377	const X509_VERIFY_PARAM const b)
	378	{
	379	return strcmp((a)->name, (b)->name);
	380	}
5d7c222d DSH	381
5d7c222d DSH	382	int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
40720ce3 MC	383	{
	384	int idx;
	385	X509_VERIFY_PARAM *ptmp;
	386	if (!param_table) {
	387	param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
	388	if (!param_table)
	389	return 0;
	390	} else {
	391	idx = sk_X509_VERIFY_PARAM_find(param_table, param);
	392	if (idx != -1) {
	393	ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
	394	X509_VERIFY_PARAM_free(ptmp);
	395	(void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
	396	}
	397	}
	398	if (!sk_X509_VERIFY_PARAM_push(param_table, param))
	399	return 0;
	400	return 1;
	401	}
5d7c222d DSH	402
5d7c222d DSH	403	const X509_VERIFY_PARAM X509_VERIFY_PARAM_lookup(const char name)
40720ce3 MC	404	{
	405	int idx;
	406	X509_VERIFY_PARAM pm;
	407	pm.name = (char *)name;
	408	if (param_table) {
	409	idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
	410	if (idx != -1)
	411	return sk_X509_VERIFY_PARAM_value(param_table, idx);
	412	}
	413	return (const X509_VERIFY_PARAM )OBJ_bsearch((char )&pm,
	414	(char *)&default_table,
	415	sizeof(default_table) /
	416	sizeof(X509_VERIFY_PARAM),
	417	sizeof(X509_VERIFY_PARAM),
	418	table_cmp);
	419	}
5d7c222d DSH	420
5d7c222d DSH	421	void X509_VERIFY_PARAM_table_cleanup(void)
40720ce3 MC	422	{
	423	if (param_table)
	424	sk_X509_VERIFY_PARAM_pop_free(param_table, X509_VERIFY_PARAM_free);
	425	param_table = NULL;
	426	}