/* 
   Unix SMB/CIFS implementation.
   helper mapping functions for the SAMDB server
   
   Copyright (C) Stefan (metze) Metzmacher 2002
   Copyright (C) Andrew Tridgell 2004
  
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "librpc/gen_ndr/samr.h"
#include "dsdb/common/flags.h"

/* 
translated the ACB_CTRL Flags to UserFlags (userAccountControl) 
*/ 
/* mapping between ADS userAccountControl and SAMR acct_flags */
static const struct {
	uint32_t uf;
	uint32_t acb;
} acct_flags_map[] = {
	{ UF_ACCOUNTDISABLE, ACB_DISABLED },
	{ UF_HOMEDIR_REQUIRED, ACB_HOMDIRREQ },
	{ UF_PASSWD_NOTREQD, ACB_PWNOTREQ },
	{ UF_TEMP_DUPLICATE_ACCOUNT, ACB_TEMPDUP },
	{ UF_NORMAL_ACCOUNT, ACB_NORMAL },
	{ UF_MNS_LOGON_ACCOUNT, ACB_MNS },
	{ UF_INTERDOMAIN_TRUST_ACCOUNT, ACB_DOMTRUST },
	{ UF_WORKSTATION_TRUST_ACCOUNT, ACB_WSTRUST },
	{ UF_SERVER_TRUST_ACCOUNT, ACB_SVRTRUST },
	{ UF_DONT_EXPIRE_PASSWD, ACB_PWNOEXP },
	{ UF_LOCKOUT, ACB_AUTOLOCK },
	{ UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED, ACB_ENC_TXT_PWD_ALLOWED },
	{ UF_SMARTCARD_REQUIRED, ACB_SMARTCARD_REQUIRED },
	{ UF_TRUSTED_FOR_DELEGATION, ACB_TRUSTED_FOR_DELEGATION },
	{ UF_NOT_DELEGATED, ACB_NOT_DELEGATED },
	{ UF_USE_DES_KEY_ONLY, ACB_USE_DES_KEY_ONLY},
	{ UF_DONT_REQUIRE_PREAUTH, ACB_DONT_REQUIRE_PREAUTH },
	{ UF_PASSWORD_EXPIRED, ACB_PW_EXPIRED },
	{ UF_NO_AUTH_DATA_REQUIRED, ACB_NO_AUTH_DATA_REQD }
};

uint32_t samdb_acb2uf(uint32_t acb)
{
	uint32_t i, ret = 0;
	for (i=0;i<ARRAY_SIZE(acct_flags_map);i++) {
		if (acct_flags_map[i].acb & acb) {
			ret |= acct_flags_map[i].uf;
		}
	}
	return ret;
}

/*
translated the UserFlags (userAccountControl) to ACB_CTRL Flags
*/
uint32_t samdb_uf2acb(uint32_t uf)
{
	uint32_t i;
	uint32_t ret = 0;
	for (i=0;i<ARRAY_SIZE(acct_flags_map);i++) {
		if (acct_flags_map[i].uf & uf) {
			ret |= acct_flags_map[i].acb;
		}
	}
	return ret;
}

/* 
get the accountType from the UserFlags
*/
uint32_t samdb_uf2atype(uint32_t uf)
{
	uint32_t atype = 0x00000000;
		
	if (uf & UF_NORMAL_ACCOUNT)			atype = ATYPE_NORMAL_ACCOUNT;
	else if (uf & UF_TEMP_DUPLICATE_ACCOUNT)	atype = ATYPE_NORMAL_ACCOUNT;
	else if (uf & UF_SERVER_TRUST_ACCOUNT)		atype = ATYPE_WORKSTATION_TRUST;
	else if (uf & UF_WORKSTATION_TRUST_ACCOUNT)	atype = ATYPE_WORKSTATION_TRUST;
	else if (uf & UF_INTERDOMAIN_TRUST_ACCOUNT)	atype = ATYPE_INTERDOMAIN_TRUST;

	return atype;
} 

/* 
get the accountType from the groupType
*/
uint32_t samdb_gtype2atype(uint32_t gtype)
{
	uint32_t atype = 0x00000000;
	
	switch(gtype) {
		case GTYPE_SECURITY_BUILTIN_LOCAL_GROUP:
			atype = ATYPE_SECURITY_LOCAL_GROUP;
			break;
		case GTYPE_SECURITY_DOMAIN_LOCAL_GROUP:
			atype = ATYPE_SECURITY_LOCAL_GROUP;
			break;
		case GTYPE_SECURITY_GLOBAL_GROUP:
			atype = ATYPE_SECURITY_GLOBAL_GROUP;
			break;
	
		case GTYPE_DISTRIBUTION_GLOBAL_GROUP:
			atype = ATYPE_DISTRIBUTION_GLOBAL_GROUP;
			break;
		case GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP:
			atype = ATYPE_DISTRIBUTION_UNIVERSAL_GROUP;
			break;
		case GTYPE_DISTRIBUTION_UNIVERSAL_GROUP:
			atype = ATYPE_DISTRIBUTION_LOCAL_GROUP;
			break;
	}

	return atype;
}

/* turn a sAMAccountType into a SID_NAME_USE */
enum lsa_SidType samdb_atype_map(uint32_t atype)
{
	switch (atype & 0xF0000000) {
	case ATYPE_GLOBAL_GROUP:
		return SID_NAME_DOM_GRP;
	case ATYPE_SECURITY_LOCAL_GROUP:
		return SID_NAME_ALIAS;
	case ATYPE_ACCOUNT:
		return SID_NAME_USER;
	default:
		DEBUG(1,("hmm, need to map account type 0x%x\n", atype));
	}
	return SID_NAME_UNKNOWN;
}