sl@0: /* x509_vpm.c */
sl@0: /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
sl@0:  * project 2004.
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer. 
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in
sl@0:  *    the documentation and/or other materials provided with the
sl@0:  *    distribution.
sl@0:  *
sl@0:  * 3. All advertising materials mentioning features or use of this
sl@0:  *    software must display the following acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
sl@0:  *    endorse or promote products derived from this software without
sl@0:  *    prior written permission. For written permission, please contact
sl@0:  *    licensing@OpenSSL.org.
sl@0:  *
sl@0:  * 5. Products derived from this software may not be called "OpenSSL"
sl@0:  *    nor may "OpenSSL" appear in their names without prior written
sl@0:  *    permission of the OpenSSL Project.
sl@0:  *
sl@0:  * 6. Redistributions of any form whatsoever must retain the following
sl@0:  *    acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
sl@0:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sl@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
sl@0:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
sl@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
sl@0:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
sl@0:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sl@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
sl@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  * ====================================================================
sl@0:  *
sl@0:  * This product includes cryptographic software written by Eric Young
sl@0:  * (eay@cryptsoft.com).  This product includes software written by Tim
sl@0:  * Hudson (tjh@cryptsoft.com).
sl@0:  *
sl@0:  */
sl@0:  /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: 
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/crypto.h>
sl@0: #include <openssl/lhash.h>
sl@0: #include <openssl/buffer.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/x509v3.h>
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: 
sl@0: /* X509_VERIFY_PARAM functions */
sl@0: 
sl@0: static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
sl@0: 	{
sl@0: 	if (!param)
sl@0: 		return;
sl@0: 	param->name = NULL;
sl@0: 	param->purpose = 0;
sl@0: 	param->trust = 0;
sl@0: 	param->inh_flags = X509_VP_FLAG_DEFAULT;
sl@0: 	param->flags = 0;
sl@0: 	param->depth = -1;
sl@0: 	if (param->policies)
sl@0: 		{
sl@0: 		sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
sl@0: 		param->policies = NULL;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: EXPORT_C X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
sl@0: 	{
sl@0: 	X509_VERIFY_PARAM *param;
sl@0: 	param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
sl@0: #ifdef SYMBIAN
sl@0:   if(param==NULL)
sl@0:   return param;
sl@0: #endif
sl@0: 	memset(param, 0, sizeof(X509_VERIFY_PARAM));
sl@0: 	x509_verify_param_zero(param);
sl@0: 	return param;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
sl@0: 	{
sl@0: 	x509_verify_param_zero(param);
sl@0: 	OPENSSL_free(param);
sl@0: 	}
sl@0: 
sl@0: /* This function determines how parameters are "inherited" from one structure
sl@0:  * to another. There are several different ways this can happen.
sl@0:  *
sl@0:  * 1. If a child structure needs to have its values initialized from a parent
sl@0:  *    they are simply copied across. For example SSL_CTX copied to SSL.
sl@0:  * 2. If the structure should take on values only if they are currently unset.
sl@0:  *    For example the values in an SSL structure will take appropriate value
sl@0:  *    for SSL servers or clients but only if the application has not set new
sl@0:  *    ones.
sl@0:  *
sl@0:  * The "inh_flags" field determines how this function behaves. 
sl@0:  *
sl@0:  * Normally any values which are set in the default are not copied from the
sl@0:  * destination and verify flags are ORed together.
sl@0:  *
sl@0:  * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
sl@0:  * to the destination. Effectively the values in "to" become default values
sl@0:  * which will be used only if nothing new is set in "from".
sl@0:  *
sl@0:  * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
sl@0:  * they are set or not. Flags is still Ored though.
sl@0:  *
sl@0:  * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
sl@0:  * of ORed.
sl@0:  *
sl@0:  * If X509_VP_FLAG_LOCKED is set then no values are copied.
sl@0:  *
sl@0:  * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
sl@0:  * after the next call.
sl@0:  */
sl@0: 
sl@0: /* Macro to test if a field should be copied from src to dest */
sl@0: 
sl@0: #define test_x509_verify_param_copy(field, def) \
sl@0: 	(to_overwrite || \
sl@0: 		((src->field != def) && (to_default || (dest->field == def))))
sl@0: 
sl@0: /* Macro to test and copy a field if necessary */
sl@0: 
sl@0: #define x509_verify_param_copy(field, def) \
sl@0: 	if (test_x509_verify_param_copy(field, def)) \
sl@0: 		dest->field = src->field
sl@0: 		
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
sl@0: 						const X509_VERIFY_PARAM *src)
sl@0: 	{
sl@0: 	unsigned long inh_flags;
sl@0: 	int to_default, to_overwrite;
sl@0: 	if (!src)
sl@0: 		return 1;
sl@0: 	inh_flags = dest->inh_flags | src->inh_flags;
sl@0: 
sl@0: 	if (inh_flags & X509_VP_FLAG_ONCE)
sl@0: 		dest->inh_flags = 0;
sl@0: 
sl@0: 	if (inh_flags & X509_VP_FLAG_LOCKED)
sl@0: 		return 1;
sl@0: 
sl@0: 	if (inh_flags & X509_VP_FLAG_DEFAULT)
sl@0: 		to_default = 1;
sl@0: 	else
sl@0: 		to_default = 0;
sl@0: 
sl@0: 	if (inh_flags & X509_VP_FLAG_OVERWRITE)
sl@0: 		to_overwrite = 1;
sl@0: 	else
sl@0: 		to_overwrite = 0;
sl@0: 
sl@0: 	x509_verify_param_copy(purpose, 0);
sl@0: 	x509_verify_param_copy(trust, 0);
sl@0: 	x509_verify_param_copy(depth, -1);
sl@0: 	/* If overwrite or check time not set, copy across */
sl@0: 
sl@0: 	if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME))
sl@0: 		{
sl@0: 		dest->check_time = src->check_time;
sl@0: 		dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
sl@0: 		/* Don't need to copy flag: that is done below */
sl@0: 		}
sl@0: 
sl@0: 
sl@0: 	if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
sl@0: 		dest->flags = 0;
sl@0: 
sl@0: 	dest->flags |= src->flags;
sl@0: 
sl@0: 	if (test_x509_verify_param_copy(policies, NULL))
sl@0: 		{
sl@0: 		if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
sl@0: 			return 0;
sl@0: 		}
sl@0: 
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
sl@0: 						const X509_VERIFY_PARAM *from)
sl@0: 	{
sl@0: 	to->inh_flags |= X509_VP_FLAG_DEFAULT;
sl@0: 	return X509_VERIFY_PARAM_inherit(to, from);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
sl@0: 	{
sl@0: 	if (param->name)
sl@0: 		OPENSSL_free(param->name);
sl@0: 	param->name = BUF_strdup(name);
sl@0: 	if (param->name)
sl@0: 		return 1;
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
sl@0: 	{
sl@0: 	param->flags |= flags;
sl@0: 	if (flags & X509_V_FLAG_POLICY_MASK)
sl@0: 		param->flags |= X509_V_FLAG_POLICY_CHECK;
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags)
sl@0: 	{
sl@0: 	param->flags &= ~flags;
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
sl@0: 	{
sl@0: 	return param->flags;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
sl@0: 	{
sl@0: 	return X509_PURPOSE_set(&param->purpose, purpose);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
sl@0: 	{
sl@0: 	return X509_TRUST_set(&param->trust, trust);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
sl@0: 	{
sl@0: 	param->depth = depth;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
sl@0: 	{
sl@0: 	param->check_time = t;
sl@0: 	param->flags |= X509_V_FLAG_USE_CHECK_TIME;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, ASN1_OBJECT *policy)
sl@0: 	{
sl@0: 	if (!param->policies)
sl@0: 		{
sl@0: 		param->policies = sk_ASN1_OBJECT_new_null();
sl@0: 		if (!param->policies)
sl@0: 			return 0;
sl@0: 		}
sl@0: 	if (!sk_ASN1_OBJECT_push(param->policies, policy))
sl@0: 		return 0;
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param, 
sl@0: 					STACK_OF(ASN1_OBJECT) *policies)
sl@0: 	{
sl@0: 	int i;
sl@0: 	ASN1_OBJECT *oid, *doid;
sl@0: 	if (!param)
sl@0: 		return 0;
sl@0: 	if (param->policies)
sl@0: 		sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
sl@0: 
sl@0: 	if (!policies)
sl@0: 		{
sl@0: 		param->policies = NULL;
sl@0: 		return 1;
sl@0: 		}
sl@0: 
sl@0: 	param->policies = sk_ASN1_OBJECT_new_null();
sl@0: 	if (!param->policies)
sl@0: 		return 0;
sl@0: 
sl@0: 	for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++)
sl@0: 		{
sl@0: 		oid = sk_ASN1_OBJECT_value(policies, i);
sl@0: 		doid = OBJ_dup(oid);
sl@0: 		if (!doid)
sl@0: 			return 0;
sl@0: 		if (!sk_ASN1_OBJECT_push(param->policies, doid))
sl@0: 			{
sl@0: 			ASN1_OBJECT_free(doid);
sl@0: 			return 0;
sl@0: 			}
sl@0: 		}
sl@0: 	param->flags |= X509_V_FLAG_POLICY_CHECK;
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
sl@0: 	{
sl@0: 	return param->depth;
sl@0: 	}
sl@0: 
sl@0: /* Default verify parameters: these are used for various
sl@0:  * applications and can be overridden by the user specified table.
sl@0:  * NB: the 'name' field *must* be in alphabetical order because it
sl@0:  * will be searched using OBJ_search.
sl@0:  */
sl@0: 
sl@0: static const X509_VERIFY_PARAM default_table[] = {
sl@0: 	{
sl@0: 	"default",	/* X509 default parameters */
sl@0: 	0,		/* Check time */
sl@0: 	0,		/* internal flags */
sl@0: 	0,		/* flags */
sl@0: 	0,		/* purpose */
sl@0: 	0,		/* trust */
sl@0: 	9,		/* depth */
sl@0: 	NULL		/* policies */
sl@0: 	},
sl@0: 	{
sl@0: 	"pkcs7",			/* SSL/TLS client parameters */
sl@0: 	0,				/* Check time */
sl@0: 	0,				/* internal flags */
sl@0: 	0,				/* flags */
sl@0: 	X509_PURPOSE_SMIME_SIGN,	/* purpose */
sl@0: 	X509_TRUST_EMAIL,		/* trust */
sl@0: 	-1,				/* depth */
sl@0: 	NULL				/* policies */
sl@0: 	},
sl@0: 	{
sl@0: 	"ssl_client",			/* SSL/TLS client parameters */
sl@0: 	0,				/* Check time */
sl@0: 	0,				/* internal flags */
sl@0: 	0,				/* flags */
sl@0: 	X509_PURPOSE_SSL_CLIENT,	/* purpose */
sl@0: 	X509_TRUST_SSL_CLIENT,		/* trust */
sl@0: 	-1,				/* depth */
sl@0: 	NULL				/* policies */
sl@0: 	},
sl@0: 	{
sl@0: 	"ssl_server",			/* SSL/TLS server parameters */
sl@0: 	0,				/* Check time */
sl@0: 	0,				/* internal flags */
sl@0: 	0,				/* flags */
sl@0: 	X509_PURPOSE_SSL_SERVER,	/* purpose */
sl@0: 	X509_TRUST_SSL_SERVER,		/* trust */
sl@0: 	-1,				/* depth */
sl@0: 	NULL				/* policies */
sl@0: 	}};
sl@0: 
sl@0: #ifndef EMULATOR
sl@0: static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
sl@0: #else
sl@0: GET_STATIC_VAR_FROM_TLS(param_table,x509_vpm,STACK_OF(X509_VERIFY_PARAM) *)
sl@0: #define param_table (*GET_WSD_VAR_NAME(param_table,x509_vpm, s)())
sl@0: #endif
sl@0: 
sl@0: static int table_cmp(const void *pa, const void *pb)
sl@0: 	{
sl@0: 	const X509_VERIFY_PARAM *a = pa, *b = pb;
sl@0: 	return strcmp(a->name, b->name);
sl@0: 	}
sl@0: 
sl@0: static int param_cmp(const X509_VERIFY_PARAM * const *a,
sl@0: 			const X509_VERIFY_PARAM * const *b)
sl@0: 	{
sl@0: 	return strcmp((*a)->name, (*b)->name);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
sl@0: 	{
sl@0: 	int idx;
sl@0: 	X509_VERIFY_PARAM *ptmp;
sl@0: 	if (!param_table)
sl@0: 		{
sl@0: 		param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
sl@0: 		if (!param_table)
sl@0: 			return 0;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		idx = sk_X509_VERIFY_PARAM_find(param_table, param);
sl@0: 		if (idx != -1)
sl@0: 			{
sl@0: 			ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
sl@0: 			X509_VERIFY_PARAM_free(ptmp);
sl@0: 			(void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
sl@0: 			}
sl@0: 		}
sl@0: 	if (!sk_X509_VERIFY_PARAM_push(param_table, param))
sl@0: 		return 0;
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
sl@0: 	{
sl@0: 	int idx;
sl@0: 	X509_VERIFY_PARAM pm;
sl@0: 	pm.name = (char *)name;
sl@0: 	if (param_table)
sl@0: 		{
sl@0: 		idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
sl@0: 		if (idx != -1)
sl@0: 			return sk_X509_VERIFY_PARAM_value(param_table, idx);
sl@0: 		}
sl@0: 	return (const X509_VERIFY_PARAM *) OBJ_bsearch((char *)&pm,
sl@0: 				(char *)&default_table,
sl@0: 				sizeof(default_table)/sizeof(X509_VERIFY_PARAM),
sl@0: 				sizeof(X509_VERIFY_PARAM),
sl@0: 				table_cmp);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void X509_VERIFY_PARAM_table_cleanup(void)
sl@0: 	{
sl@0: 	if (param_table)
sl@0: 		sk_X509_VERIFY_PARAM_pop_free(param_table,
sl@0: 						X509_VERIFY_PARAM_free);
sl@0: 	param_table = NULL;
sl@0: 	}