/* x509_vpm.c */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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).

  *

  */

  /*

  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

  */

 #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>

 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

 #include "libcrypto_wsd_macros.h"

 #include "libcrypto_wsd.h"

 #endif

 /* 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 = X509_VP_FLAG_DEFAULT;

 	param->flags = 0;

 	param->depth = -1;

 	if (param->policies)

 		{

 		sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);

 		param->policies = NULL;

 		}

 	}

 EXPORT_C X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)

 	{

 	X509_VERIFY_PARAM *param;

 	param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));

 #ifdef SYMBIAN

   if(param==NULL)

   return param;

 #endif

 	memset(param, 0, sizeof(X509_VERIFY_PARAM));

 	x509_verify_param_zero(param);

 	return param;

 	}

 EXPORT_C 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

 EXPORT_C 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;

 	}

 EXPORT_C int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,

 						const X509_VERIFY_PARAM *from)

 	{

 	to->inh_flags |= X509_VP_FLAG_DEFAULT;

 	return X509_VERIFY_PARAM_inherit(to, from);

 	}

 EXPORT_C 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;

 	}

 EXPORT_C 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;

 	}

 EXPORT_C int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags)

 	{

 	param->flags &= ~flags;

 	return 1;

 	}

 EXPORT_C unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)

 	{

 	return param->flags;

 	}

 EXPORT_C int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)

 	{

 	return X509_PURPOSE_set(&param->purpose, purpose);

 	}

 EXPORT_C int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)

 	{

 	return X509_TRUST_set(&param->trust, trust);

 	}

 EXPORT_C void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)

 	{

 	param->depth = depth;

 	}

 EXPORT_C 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;

 	}

 EXPORT_C 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;

 	}

 EXPORT_C 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;

 	}

 EXPORT_C 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 */

 	9,		/* depth */

 	NULL		/* policies */

 	},

 	{

 	"pkcs7",			/* SSL/TLS client 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 */

 	}};

 #ifndef EMULATOR

 static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;

 #else

 GET_STATIC_VAR_FROM_TLS(param_table,x509_vpm,STACK_OF(X509_VERIFY_PARAM) *)

 #define param_table (*GET_WSD_VAR_NAME(param_table,x509_vpm, s)())

 #endif

 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);

 	}

 EXPORT_C 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;

 	}

 EXPORT_C 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);

 	}

 EXPORT_C 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;

 	}