/*
 * Copyright (c) 2011 Rozhuk Ivan <rozhuk.im@gmail.com>
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS 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 REGENTS OR 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.
 *
 */



#if !defined(AFX_DHCPMESSAGE__H__INCLUDED_)
#define AFX_DHCPMESSAGE__H__INCLUDED_


#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000




#ifndef SIZEOF
	#define SIZEOF(X)					(sizeof(X)/sizeof(X[0]))
#endif


#define	DHCP_PSTR	char*
#define	DHCP_PCSTR	const char*
#define	DHCP_1BYTE	unsigned char
#define	DHCP_2BYTE	unsigned short
#define	DHCP_4BYTE	unsigned long

#ifdef _WINDOWS
	#define	DHCP_SIZE_T	SIZE_T
#else
	#define	DHCP_SIZE_T	size_t
#endif



// error constants
#ifndef _WINDOWS

#define	NO_ERROR			0
#define	ERROR_INVALID_DATA		1
#define	ERROR_NOT_SUPPORTED		2
#define	ERROR_INVALID_PARAMETER		3
#define	ERROR_INSUFFICIENT_BUFFER	4
#define	ERROR_NOT_FOUND			5

#define	DHCP_ERROR_RESPONSE_CODES_BASE	0
#define	DHCP_ERROR_BAD_PACKET		128
#define	DHCP_ERROR_NO_PACKET		129

#endif



//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
// http://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xml#bootp-dhcp-parameters-1
//
// RFC 1542	Clarifications and Extensions for BOOTP
// RFC 2131	Dynamic Host Configuration Protocol
// RFC 2132	DHCP Options and BOOTP Vendor Extensions
// RFC 3203	DHCP reconfigure extension (FORCERENEW)
// RFC 3679	Unused DHCP Option Codes
// RFC 3942	Reclassifying DHCPv4 Options
//
// RFC 3046	DHCP Relay Agent Information Option (sub opt 1-2)
// RFC 3256	The DOCSIS (Data-Over-Cable Service Interface Specifications) Device Class DHCP (Dynamic Host Configuration Protocol) Relay Agent Information Sub-option  (add subopt 4 to RFC 3046)
// RFC 3527	Link Selection sub-option (add subopt 5 to RFC 3046)
// RFC 3993	Subscriber-ID Suboption (add subopt 6 to RFC 3046)
// RFC 4014	RADIUS Attributes Suboption (add subopt 7 to RFC 3046)
// RFC 4030	Authentication Suboption (add subopt 8 to RFC 3046)
// RFC 4243	Vendor-Specific Relay Suboption (add subopt 9 to RFC 3046)
// RFC 5010	Relay Agent Flags Suboption (add subopt 10 to RFC 3046)
// RFC 5107	Server ID Override Suboption (add subopt 11 to RFC 3046)
//
// RFC 2241	DHCP Options for Novell Directory Services
// RFC 2242	NetWare/IP Domain Name and Information
// RFC 2485	DHCP Option for The Open Group's User Authentication Protocol
// RFC 2563	DHCP Option to Disable Stateless Auto-Configuration in IPv4 Clients
// RFC 2610	DHCP Options for Service Location Protocol
// RFC 2937	The Name Service Search Option for DHCP
// RFC 2939	Procedures for New DHCP Options
// RFC 3004	The User Class Option for DHCP
// RFC 3011	The IPv4 Subnet Selection Option for DHCP
// RFC 3118	Authentication for DHCP Messages
// RFC 3442	Classless Static Route Option for DHCPv4
// RFC 3495	DHCP Option for CableLabs Clients
// RFC 3594	Security Ticket Control (add subopt to RFC 3495)
// RFC 3825	DHCP Option for Coordinate LCI
// RFC 4174	DHCP Option Number for iSNS
// RFC 4280	DHCP Options for BMCS
// RFC 4361	Node-specific Identifiers for DHCPv4
// RFC 4578	DHCP PXE Options
// RFC 4702	The DHCP Client FQDN Option
// RFC 4776	Option for Civic Addresses Configuration Information
// RFC 4833	Timezone Options for DHCP
// RFC 5071	PXELINUX Options
// RFC 5192	PAA DHCP Options
// RFC 5223	DHCP-Based LoST Discovery
// RFC 5678	Mobility Services for DCHP Options
// RFC 5859	TFTP Server Address
// http://www.iana.org/numbers.htm
// http://msdn.microsoft.com/en-us/library/cc227274(v=PROT.10).aspx
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
#pragma pack(1)


//
//  DHCP Names limited to 255
//

#define DHCP_SRV_PORT		67
#define DHCP_CLI_PORT		68
#define DHCP_MIN_PACKET_LENGTH	300 // RFC 1542 2.1



union DHCP_HEADER_FLAGS {
	DHCP_2BYTE wFlags;
	struct HEADER_FLAGS {
		DHCP_1BYTE MBZ2	:7; //-- // MUST BE ZERO (reserved for future use)
		DHCP_1BYTE B	:1; //C- // BROADCAST
		DHCP_1BYTE MBZ1	:8; //-- // MUST BE ZERO (reserved for future use)
	} hf;
};


struct DHCP_HEADER {
	DHCP_1BYTE	op;	// Message op code / message type
	DHCP_1BYTE	htype;	// Hardware address type, see ARP section in "Assigned Numbers" RFC; e.g., '1' = 10mb ethernet.
	DHCP_1BYTE	hlen;	// Hardware address length (e.g.  '6' for 10mb ethernet).
	DHCP_1BYTE	hops;	// Client sets to zero, optionally used by relay agents when booting via a relay agent.
	DHCP_4BYTE	xid;	// Transaction ID, a random number chosen by the client, used by the client and server to associate messages and responses between a client and a server.
	DHCP_2BYTE	secs;	// Filled in by client, seconds elapsed since client began address acquisition or renewal process.
	DHCP_HEADER_FLAGS flags;// Flags
	DHCP_4BYTE	ciaddr;	// Client IP address; only filled in if client is in BOUND, RENEW or REBINDING state and can respond to ARP requests
	DHCP_4BYTE	yiaddr;	// 'your' (client) IP address
	DHCP_4BYTE	siaddr;	// IP address of next server to use in bootstrap; returned in DHCPOFFER, DHCPACK by server
	DHCP_4BYTE	giaddr;	// Relay agent IP address, used in booting via a relay agent
	DHCP_1BYTE	chaddr[16];// Client hardware address
	DHCP_1BYTE	sname[64];// Optional server host name, null terminated string
	DHCP_1BYTE	file[128];// Boot file name, null terminated string; "generic" name or null in DHCPDISCOVER, fully qualified directory-path name in DHCPOFFER
	DHCP_1BYTE	options[];// Optional parameters field
};

// Message op code / message type
#define DHCP_HDR_OP_BOOTREQUEST	1
#define DHCP_HDR_OP_BOOTREPLY	2
#define DHCP_HDR_OP_MIN		DHCP_HDR_OP_BOOTREQUEST
#define DHCP_HDR_OP_MAX		DHCP_HDR_OP_BOOTREPLY
#define DHCP_HDR_HTYPE_MAX	37
#define DHCP_HDR_HLEN_MAX	16
#define DHCP_HDR_HOPS_MAX	255

#define DHCP_MAGIC_COOKIE	0x63538263 // (99, 130, 83, 99) - in host byte order


static DHCP_PCSTR dhcp_header_op[] = {
/*   0 */	NULL,
/*   1 */	"BOOTREQUEST",
/*   2 */	"BOOTREPLY",
};


static DHCP_PCSTR dhcp_header_htype[] = {
/*   0 */	"Reserved",
/*   1 */	"Ethernet (10Mb)",
/*   2 */	"Experimental Ethernet (3Mb)",
/*   3 */	"Amateur Radio AX.25",
/*   4 */	"Proteon ProNET Token Ring",
/*   5 */	"Chaos",
/*   6 */	"IEEE 802 Networks",
/*   7 */	"ARCNET",
/*   8 */	"Hyperchannel",
/*   9 */	"Lanstar",
/*  10 */	"Autonet Short Address",
/*  11 */	"LocalTalk",
/*  12 */	"LocalNet (IBM PCNet or SYTEK LocalNET)",
/*  13 */	"Ultra link",
/*  14 */	"SMDS",
/*  15 */	"Frame Relay",
/*  16 */	"Asynchronous Transmission Mode (ATM)",
/*  17 */	"HDLC",
/*  18 */	"Fibre Channel",
/*  19 */	"Asynchronous Transmission Mode (ATM)",
/*  20 */	"Serial Line",
/*  21 */	"Asynchronous Transmission Mode (ATM)",
/*  22 */	"MIL-STD-188-220",
/*  23 */	"Metricom",
/*  24 */	"IEEE 1394.1995",
/*  25 */	"MAPOS",
/*  26 */	"Twinaxial",
/*  27 */	"EUI-64",
/*  28 */	"HIPARP",
/*  29 */	"IP and ARP over ISO 7816-3",
/*  30 */	"ARPSec",
/*  31 */	"IPsec tunnel",
/*  32 */	"InfiniBand (TM)",
/*  33 */	"TIA-102 Project 25 Common Air Interface (CAI)",
/*  34 */	"Wiegand Interface",
/*  35 */	"Pure IP",
/*  36 */	"HW_EXP1",
/*  37 */	"HFI",
};



// DHCP Standard Options
// RFC 2132
// 3. RFC 1497 Vendor Extensions
#define DHCP_OPT_PAD			0
#define DHCP_OPT_SUBNET_MASK		1
#define DHCP_OPT_TIME_OFFSET		2  // deprecated by RFC 4833 (100, 101)
#define DHCP_OPT_ROUTER_ADDRESS		3
#define DHCP_OPT_TIME_SERVERS		4
#define DHCP_OPT_IEN116_NAME_SERVERS	5
#define DHCP_OPT_DOMAIN_NAME_SERVERS	6
#define DHCP_OPT_LOG_SERVERS		7
#define DHCP_OPT_COOKIE_SERVERS		8
#define DHCP_OPT_LPR_SERVERS		9
#define DHCP_OPT_IMPRESS_SERVERS	10
#define DHCP_OPT_RLP_SERVERS		11
#define DHCP_OPT_HOST_NAME		12
#define DHCP_OPT_BOOT_FILE_SIZE		13
#define DHCP_OPT_MERIT_DUMP_FILE	14
#define DHCP_OPT_DOMAIN_NAME		15
#define DHCP_OPT_SWAP_SERVER		16
#define DHCP_OPT_ROOT_PATH		17
#define DHCP_OPT_EXTENSIONS_PATH	18
// 4. IP Layer Parameters per Host
#define DHCP_OPT_IP_FORWARD_ENABLE	19
#define DHCP_OPT_NON_LOCAL_SOURCE_ROUTING 20
#define DHCP_OPT_POLICY_FILTER		21
#define DHCP_OPT_MAX_DATAGRAM_REASSEMBLY_SZ 22
#define DHCP_OPT_IP_DEFAULT_TTL		23
#define DHCP_OPT_PMTU_AGING_TIMEOUT	24
#define DHCP_OPT_PMTU_PLATEAU_TABLE	25
// 5. IP Layer Parameters per Interface
#define DHCP_OPT_INTERFACE_MTU		26
#define DHCP_OPT_ALL_SUBNETS_LOCAL	27
#define DHCP_OPT_BROADCAST_ADDRESS	28
#define DHCP_OPT_PERFORM_MASK_DISCOVERY	29
#define DHCP_OPT_PROVIDE_MASK_TO_OTHERS	30
#define DHCP_OPT_PERFORM_ROUTER_DISCOVERY 31
#define DHCP_OPT_ROUTER_SOLICITATION_ADDR 32
#define DHCP_OPT_STATIC_ROUTES		33
// 6. Link Layer Parameters per Interface
#define DHCP_OPT_TRAILER_ENCAPSULATION	34
#define DHCP_OPT_ARP_CACHE_TIMEOUT	35
#define DHCP_OPT_ETHERNET_ENCAPSULATION	36
// 7. TCP Parameters
#define DHCP_OPT_DEFAULT_TCP_TTL	37
#define DHCP_OPT_KEEP_ALIVE_INTERVAL	38
#define DHCP_OPT_KEEP_ALIVE_GARBAGE	39
// 8. Application and Service Parameters
#define DHCP_OPT_NIS_DOMAIN_NAME	40
#define DHCP_OPT_NIS_SERVERS		41
#define DHCP_OPT_NTP_SERVERS		42
// 8.4. Vendor Specific Information
#define DHCP_OPT_VENDOR_SPEC_INFO	43	// http://msdn.microsoft.com/en-us/library/cc227275%28v=PROT.10%29.aspx
// NetBIOS over TCP/IP Name server option
#define DHCP_OPT_NETBIOS_NAME_SERVERS	44
#define DHCP_OPT_NETBIOS_DGM_DIST_SERVER 45
#define DHCP_OPT_NETBIOS_NODE_TYPE	46
#define DHCP_OPT_NETBIOS_SCOPE_OPTION	47
// X Window System Options.
#define DHCP_OPT_X_WINDOW_FONT_SERVER	48
#define DHCP_OPT_X_WINDOW_DISPLAY_MANAGER 49
// 9. DHCP Extensions
#define DHCP_OPT_REQUESTED_IP_ADDRESS	50
#define DHCP_OPT_IP_ADDRESS_LEASE_TIME	51
#define DHCP_OPT_OVERLOAD		52
//
#define DHCP_OPT_MESSAGE_TYPE		53
#define DHCP_OPT_MESSAGE_TYPE_DISCOVER	1	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_OFFER	2	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_REQUEST	3	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_DECLINE	4	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_ACK	5	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_NAK	6	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_RELEASE	7	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_INFORM	8	// RFC 2132 DHCP Options and BOOTP Vendor Extensions
#define DHCP_OPT_MESSAGE_TYPE_FORCE_RENEW 9	// RFC 3203 DHCP reconfigure extension
#define DHCP_OPT_MESSAGE_TYPE_DHCPLEASEQUERY		10	// RFC 4388 DHCP Leasequery
#define DHCP_OPT_MESSAGE_TYPE_DHCPLEASEUNASSIGNED	11	// RFC 4388 DHCP Leasequery
#define DHCP_OPT_MESSAGE_TYPE_DHCPLEASEUNKNOWN		12	// RFC 4388 DHCP Leasequery
#define DHCP_OPT_MESSAGE_TYPE_DHCPLEASEACTIVE		13	// RFC 4388 DHCP Leasequery
//
#define DHCP_OPT_DHCP_SERVER_IDENTIFIER	54
#define DHCP_OPT_PARAMETER_REQUEST_LIST	55
#define DHCP_OPT_MESSAGE		56
#define DHCP_OPT_DHCP_MAXIMUM_MSG_SIZE	57
#define DHCP_OPT_RENEWAL_TIME		58	// T1
#define DHCP_OPT_REBINDING_TIME		59	// T2
#define DHCP_OPT_VENDOR_CLASS_IDENTIFIER 60
#define DHCP_OPT_DHCP_CLIENT_IDENTIFIER	61	// upd: RFC 4361 Node-specific Identifiers for DHCPv4
#define DHCP_OPT_NETWARE_DOMAIN_NAME	62	// RFC 2242 NetWare/IP Domain Name and Information
#define DHCP_OPT_NETWARE_SUB_OPTIONS	63	// RFC 2242 NetWare/IP Domain Name and Information
#define DHCP_OPT_NIS_CLIENT_DOMAIN_NAME	64
#define DHCP_OPT_NIS_SERVER_ADDRESS	65
#define DHCP_OPT_TFTP_SERVER_NAME	66
#define DHCP_OPT_BOOTFILE_NAME		67
#define DHCP_OPT_HOME_AGENT_ADDRESS	68
#define DHCP_OPT_SMTP_SERVER_ADDRESS	69
#define DHCP_OPT_POP3_SERVER_ADDRESS	70
#define DHCP_OPT_NNTP_SERVER_ADDRESS	71
#define DHCP_OPT_WWW_SERVER_ADDRESS	72
#define DHCP_OPT_FINGER_SERVER_ADDRESS	73
#define DHCP_OPT_IRC_SERVER_ADDRESS	74
#define DHCP_OPT_STREETTALK_SERVER_ADDRESS 75
#define DHCP_OPT_STREETTALK_DIRECTORY_ASSIST_SRV 76
#define DHCP_OPT_USER_CLASS		77	// RFC 3004 The User Class Option for DHCP
#define DHCP_OPT_SLP_DIRECTORY_AGENT	78	// RFC 2610 DHCP Options for Service Location Protocol
#define DHCP_OPT_SLP_SERVICE_SCOPE	79	// RFC 2610 DHCP Options for Service Location Protocol
#define DHCP_OPT_RAPID_COMMIT		80	// RFC 4039 Rapid Commit Option for DHCPv4
#define DHCP_OPT_CLIENT_FQDN		81	// RFC 4702 The DHCP Client FQDN Option
//
#define DHCP_OPT_RELAY_AGENT_INFO	82	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_CIRCUIT_ID		1	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_REMOTE_ID		2	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_DOCSIS_DEVICE_CLASS	4	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_RELAY_LINK_SELECTION	5	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_SUBSCRIBER_ID		6	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_RADIUS_ATTRIBUTES	7	// RFC 3046	DHCP Relay Agent Information Option
#define DHCP_OPT_RELAY_AGENT_INFO_AUTHENTICATION_INFO	8	//
#define DHCP_OPT_RELAY_AGENT_INFO_VENDOR_SPECIFIC_INFO	9	//
#define DHCP_OPT_RELAY_AGENT_INFO_RELAY_AGENT_FLAGS	10	//
#define DHCP_OPT_RELAY_AGENT_INFO_SERVER_ID_OVERRIDE	11	// 
//
#define DHCP_OPT_ISNS			83	// RFC 4174 DHCP Option Number for iSNS
//
#define DHCP_OPT_NDS_SERVERS		85	// DHCP Options for Novell Directory Services
#define DHCP_OPT_NDS_TREE_NAME		86	// DHCP Options for Novell Directory Services
#define DHCP_OPT_NDS_CONTEXT		87	// DHCP Options for Novell Directory Services
#define DHCP_OPT_BCMCS_CTRL_DOMAIN_NAME_LST 88	// RFC 3679 // RFC 4280 DHCP Options for BMCS
#define DHCP_OPT_BCMCS_CTRL_IPV4_ADDRESS 89	// RFC 3679 // RFC 4280 DHCP Options for BMCS
#define DHCP_OPT_AUTHENTICATION		90	// RFC 3118 Authentication for DHCP Messages
#define DHCP_OPT_CLI_LAST_TRANSACTION_TIME 91	// RFC 3679 // RFC 4388 DHCP Leasequery
#define DHCP_OPT_ASSOCIATED_IP		92	// RFC 3679 // RFC 4388 DHCP Leasequery
#define DHCP_OPT_CLIENT_SYSTEM_ARCHITECTURE 93	// RFC 4578 DHCP PXE Options
#define DHCP_OPT_CLIENT_NET_INTERFACE_ID 94	// RFC 4578 DHCP PXE Options
//
#define DHCP_OPT_CLIENT_MACHINE_ID	97	// RFC 4578 DHCP PXE Options
#define DHCP_OPT_UAP			98	// RFC 2485 DHCP Option for The Open Group's User Authentication Protocol
#define DHCP_OPT_GEOCONF_CIVIC		99	// RFC 4776 Option for Civic Addresses Configuration Information
#define DHCP_OPT_TZ_POSIX_STRING	100	// RFC 4833 Timezone Options for DHCP
#define DHCP_OPT_TZ_DATABASE_STRING	101	// RFC 4833 Timezone Options for DHCP
//
#define DHCP_OPT_AUTO_CONFIGURE		116	// RFC 2563 DHCP Option to Disable Stateless Auto-Configuration in IPv4 Clients
#define DHCP_OPT_NAME_SERVICE_SEARCH	117	// RFC 2937 The Name Service Search Option for DHCP
#define DHCP_OPT_SUBNET_SELECTION	118	// RFC 3011 The IPv4 Subnet Selection Option for DHCP
//
#define DHCP_OPT_CLASSLESS_STATIC_ROUTE	121	// RFC 3442 Classless Static Route Option for DHCPv4
#define DHCP_OPT_CABLELABS_CLIENT_CONFIG 122	// RFC 3495 DHCP Option for CableLabs Clients
#define DHCP_OPT_LOCATION_CONFIG_INFO	123 // RFC 3825 DHCP Option for Coordinate LCI
//
#define DHCP_OPT_PANA_AUTHENTICATION_AGENT 136 // RFC 5192 PAA DHCP Options
#define DHCP_OPT_LOST_SERVER		137	// RFC 5223 DHCP-Based LoST Discovery
//
#define DHCP_OPT_MOS_ADDRESS		139 // RFC 5678 Mobility Services for DCHP Options
#define DHCP_OPT_MOS_DOMAIN_NAME_LIST	140 // RFC 5678 Mobility Services for DCHP Options
//
#define DHCP_OPT_TFTP_SERVER_IP_ADDRESSES 150 // RFC 5859 TFTP Server Address
//
#define DHCP_OPT_PXELINUX_MAGIC		208 // RFC 5071 PXELINUX Options
#define DHCP_OPT_PXELINUX_CONFIG_FILE	209 // RFC 5071 PXELINUX Options
#define DHCP_OPT_PXELINUX_PATH_PREFIX	210 // RFC 5071 PXELINUX Options
#define DHCP_OPT_PXELINUX_REBOOT_TIME	211 // RFC 5071 PXELINUX Options
//
#define DHCP_OPT_END			255




struct DHCP_OPT_DATA {
	DHCP_1BYTE	Code;	// DHCP_OPT_* (Assigned by IANA.)
	DHCP_1BYTE	Lenght;	// Size (in octets) of OPTION-DATA
	DHCP_1BYTE	Data[];	// Varies per OPTION-CODE
};



struct DHCP_OPT_PARAMS {
	DHCP_PCSTR	DisplayName;
	DHCP_1BYTE	Lenght;		// len
	DHCP_1BYTE	Type;		// data type
	DHCP_2BYTE	Flags;		// 2 byte - for allign only
	//DHCP_2BYTE	MsgTypes;	// apply to message types
	void		*DataValues;
	DHCP_SIZE_T	DataValuesCount;
};

#define DHCP_OPTP_T_NONE	0
#define DHCP_OPTP_T_SUBOPTS	1
#define DHCP_OPTP_T_BOOL	2
#define DHCP_OPTP_T_1BYTE	3
#define DHCP_OPTP_T_2BYTE	4
#define DHCP_OPTP_T_2TIME	5
#define DHCP_OPTP_T_4BYTE	6
#define DHCP_OPTP_T_4TIME	7
#define DHCP_OPTP_T_IPADDR	8
#define DHCP_OPTP_T_IPIPADDR	9
#define DHCP_OPTP_T_STR		10
#define DHCP_OPTP_T_STRUTF8	11
#define DHCP_OPTP_T_STRRR	12	// DNS string format
#define DHCP_OPTP_T_BYTES	13
#define DHCP_OPTP_T_ADV		14	// option have specific format
#define DHCP_OPTP_T_PAD		254
#define DHCP_OPTP_T_END		255


#define DHCP_OPTP_F_NONE	0
#define DHCP_OPTP_F_NOLEN	1
#define DHCP_OPTP_F_FIXEDLEN	2
#define DHCP_OPTP_F_MINLEN	4
#define DHCP_OPTP_F_ARRAY	8
// in case (FIXEDLEN + ARRAY), Len = sizeof 1 element


#define DHCP_OPTP_MT_NONE	0
#define DHCP_OPTP_MT_NO_REQ_LIST 1	// do not include to DHCP_OPT_PARAMETER_REQUEST_LIST (55)
#define DHCP_OPTP_MT_DISCOVER	(1<<DHCP_OPT_MESSAGE_TYPE_DISCOVER)
#define DHCP_OPTP_MT_OFFER	(1<<DHCP_OPT_MESSAGE_TYPE_OFFER)
#define DHCP_OPTP_MT_REQUEST	(1<<DHCP_OPT_MESSAGE_TYPE_REQUEST)
#define DHCP_OPTP_MT_DECLINE	(1<<DHCP_OPT_MESSAGE_TYPE_DECLINE)
#define DHCP_OPTP_MT_ACK	(1<<DHCP_OPT_MESSAGE_TYPE_ACK)
#define DHCP_OPTP_MT_NAK	(1<<DHCP_OPT_MESSAGE_TYPE_NAK)
#define DHCP_OPTP_MT_RELEASE	(1<<DHCP_OPT_MESSAGE_TYPE_RELEASE)
#define DHCP_OPTP_MT_INFORM	(1<<DHCP_OPT_MESSAGE_TYPE_INFORM)
#define DHCP_OPTP_MT_FORCE_RENEW (1<<DHCP_OPT_MESSAGE_TYPE_FORCE_RENEW)
#define DHCP_OPTP_MT_DHCPLEASEQUERY	(1<<DHCP_OPT_MESSAGE_TYPE_DHCPLEASEQUERY)
#define DHCP_OPTP_MT_DHCPLEASEUNASSIGNED (1<<DHCP_OPT_MESSAGE_TYPE_DHCPLEASEUNASSIGNED)
#define DHCP_OPTP_MT_DHCPLEASEUNKNOWN	(1<<DHCP_OPT_MESSAGE_TYPE_DHCPLEASEUNKNOWN)
#define DHCP_OPTP_MT_DHCPLEASEACTIVE	(1<<DHCP_OPT_MESSAGE_TYPE_DHCPLEASEACTIVE)


#define DHCP_OPT_PARAMS_UNKNOWN	{ "Unknown", 0, DHCP_OPTP_T_BYTES, DHCP_OPTP_F_MINLEN, NULL, 0 }
#define DHCP_OPT_PARAMS_PAD	{ "PAD", 0, DHCP_OPTP_T_PAD, DHCP_OPTP_F_NOLEN, NULL, 0 }
#define DHCP_OPT_PARAMS_END	{ "END", 0, DHCP_OPTP_T_END, DHCP_OPTP_F_NOLEN, NULL, 0 }


static const DHCP_OPT_PARAMS dhcp_opt_params_unknown = DHCP_OPT_PARAMS_UNKNOWN;
static const DHCP_OPT_PARAMS dhcp_opt_params_pad = DHCP_OPT_PARAMS_PAD;
static const DHCP_OPT_PARAMS dhcp_opt_params_end = DHCP_OPT_PARAMS_END;




static DHCP_PCSTR dhcp_opt_enabledisable[] = {
/* 0 */		"disabled",
/* 1 */		"enabled"
};



static DHCP_PCSTR dhcp_opt36[] = {
/* 0 */		"Ethernet version 2",
/* 1 */		"IEEE 802.3"
};


static DHCP_PCSTR dhcp_opt46[] = {
/* 0 */		NULL,
/* 1 */		"B-node",
/* 2 */		"P-node",
/* 3 */		NULL,
/* 4 */		"M-node",
/* 5 */		NULL,
/* 6 */		NULL,
/* 7 */		NULL,
/* 8 */		"H-node"
};


static DHCP_PCSTR dhcp_opt52[] = {
/* 0 */		NULL,
/* 1 */		"file field holds options",
/* 2 */		"sname field holds options",
/* 3 */		"file and sname field holds options"
};


static DHCP_PCSTR dhcp_opt53[] = {
	NULL,
	"DISCOVER",
	"OFFER",
	"REQUEST",
	"DECLINE",
	"ACK",
	"NAK",
	"RELEASE",
	"INFORM",
	"FORCE RENEW",
	"DHCPLEASEQUERY",
	"DHCPLEASEUNASSIGNED",
	"DHCPLEASEUNKNOWN",
	"DHCPLEASEACTIVE",
};


static DHCP_PCSTR dhcp_opt55[256] = {
// start RFC 2132
/*   0 */	"PAD",
/*   1 */	"Subnet mask",
/*   2 */	"Time offset",
/*   3 */	"Routers",
/*   4 */	"Time servers",
/*   5 */	"Name servers",
/*   6 */	"DNS servers",
/*   7 */	"Log servers",
/*   8 */	"Cookie servers",
/*   9 */	"LPR servers",
/*  10 */	"Impress servers",
/*  11 */	"Resource location servers",
/*  12 */	"Host name",
/*  13 */	"Boot file size",
/*  14 */	"Merit dump file",
/*  15 */	"Domain Name",
/*  16 */	"Swap server",
/*  17 */	"Root path",
/*  18 */	"Extensions path",
/*  19 */	"IP forwarding",
/*  20 */	"Non-local source routing",
/*  21 */	"Policy filter (dst net/mask)",
/*  22 */	"Max dgram reassembly size",
/*  23 */	"Default IP TTL",
/*  24 */	"Path MTU aging timeout",
/*  25 */	"Path MTU plateau table",
/*  26 */	"Interface MTU",
/*  27 */	"All subnets local",
/*  28 */	"Broadcast address",
/*  29 */	"Perform mask discovery",
/*  30 */	"Mask supplier",
/*  31 */	"Perform router discovery",
/*  32 */	"Router solicitation",
/*  33 */	"Static route (dst host/router)",
/*  34 */	"Trailer encapsulation",
/*  35 */	"ARP cache timeout",
/*  36 */	"Ethernet encapsulation",
/*  37 */	"TCP default TTL",
/*  38 */	"TCP keepalive interval",
/*  39 */	"TCP keepalive garbage",
/*  40 */	"NIS domain",
/*  41 */	"NIS servers",
/*  42 */	"NTP servers",
/*  43 */	"Vendor specific info",
/*  44 */	"NetBIOS name servers",
/*  45 */	"NetBIOS dgram distrib servers",
/*  46 */	"NetBIOS node type",
/*  47 */	"NetBIOS scope",
/*  48 */	"X Window font servers",
/*  49 */	"X Window display servers",
/*  50 */	"Request IP address",
/*  51 */	"IP address lease time",
/*  52 */	"Option overload",
/*  53 */	"DHCP message type",
/*  54 */	"DHCP Server identifier",
/*  55 */	"Parameter Request List",
/*  56 */	"Message",
/*  57 */	"Maximum DHCP message size",
/*  58 */	"Renew time (T1)",
/*  59 */	"Rebind time (T2)",
/*  60 */	"Vendor class identifier",
/*  61 */	"DHCP Client identifier",
/*  62 */	"Netware/IP domain name",
/*  63 */	"Netware/IP domain info",
/*  64 */	"NIS+ domain",
/*  65 */	"NIS+ servers",
/*  66 */	"TFTP server name",
/*  67 */	"Bootfile name",
/*  68 */	"Mobile IP home agent",
/*  69 */	"SMTP servers",
/*  70 */	"POP3 servers",
/*  71 */	"NNTP servers",
/*  72 */	"WWW servers",
/*  73 */	"Finger servers",
/*  74 */	"IRC servers",
/*  75 */	"StreetTalk servers",
/*  76 */	"StreetTalk dir assist srv",
/*  77 */	"User Class",
/*  78 */	"SLP Directory Agent",
/*  79 */	"SLP Service Scope",
/*  80 */	"Rapid Commit",
/*  81 */	"Client FQDN",
/*  82 */	"Relay Agent Information",
/*  83 */	"iSNS",
/*  84 */	NULL,
/*  85 */	"NDS server",
/*  86 */	"NDS tree name",
/*  87 */	"NDS context",
/*  88 */	"BCMCS ctrl Domain Name List",
/*  89 */	"BCMCS ctrl IPv4 Address",
/*  90 */	"Authentication",
/*  91 */	"Client last transaction time",
/*  92 */	"Associated IP",
/*  93 */	"PXE Cli System Architecture",
/*  94 */	"PXE Cli Network Interface Id",
/*  95 */	"LDAP Servers",
/*  96 */	NULL,
/*  97 */	"PXE Client Machine Id",
/*  98 */	"UAP servers",
/*  99 */	"Civic Location",
/* 100 */	"Timezone IEEE 1003.1 String",
/* 101 */	"Reference to the TZ Database",
/* 102 - 111 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 112 */	"Netinfo Address",
/* 113 */	"Netinfo Tag",
/* 114 */	"URL",
/* 115 */	NULL,
/* 116 */	"Auto Configure",
/* 117 */	"Name Service Search",
/* 118 */	"Subnet selection",
/* 119 */	"Domain Search",
/* 120 */	"SIP Servers",
/* 121 */	"Classless Static Route",
/* 122 */	"CableLabs Client Config",
/* 123 */	"Location Configuration Info",
/* 124 */	"V-I-Vendor Class",
/* 125 */	"V-I-Vendor Specific",
/* 126 */	"Extension 126",
/* 127 */	"Extension 127",
/* 128 */	"TFTP Srv IP Addr (Etherboot)",
/* 129 */	"Call Server IP address",
/* 130 */	"Ethernet Interface",
/* 131 */	"Remote Stats Svr IP Address",
/* 132 */	"IEEE 802.1Q L2 Priority",
/* 133 */	"IEEE 802.1P VLAN ID",
/* 134 */	"Diffserv Code Point",
/* 135 */	"HTTP Proxy",
/* 136 */	"PANA Authentication Agent",
/* 137 */	"LoST Server",
/* 138 */	NULL,
/* 139 */	"MoS IPv4 Address",
/* 140 */	"MoS Domain Name List",
/* 141 - 143 */	NULL, NULL, NULL,
/* 144 */	"HP - TFTP file",
/* 145 - 149 */	NULL, NULL, NULL, NULL, NULL,
/* 150 */	"TFTP Server IP Addresses",
/* 151 - 159 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 160 - 169 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 170 - 169 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 180 - 189 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 190 - 199 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 200 - 207 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 208 */	"PXELINUX magic",
/* 209 */	"PXELINUX Config File",
/* 210 */	"PXELINUX Path Prefix",
/* 211 */	"PXELINUX Reboot Time",
/* 212 - 219 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 220 - 229 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 230 - 239 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 240 - 248 */	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 249 */	"MSFT - Classless route",
/* 250 */	"MSFT - Encoding Long Options",
/* 251 */	NULL,
/* 252 */	"MSFT - Web Proxy Auto Detect",
/* 253 */	NULL,
/* 254 */	NULL,
/* 255 */	"END"
};



// http://technet.microsoft.com/en-us/library/cc977371.aspx
static DHCP_PCSTR dhcp_opt43_MSFT_1[] = {
/* 0 */		NULL,
/* 1 */		dhcp_opt_enabledisable[1],// NetBT remains enabled
/* 2 */		dhcp_opt_enabledisable[0] // Disable NetBIOS over TCP/IP (NetBT) for Windows 2000 DHCP clients
};

static const DHCP_OPT_PARAMS dhcp_opt43_MSFT[] = {
/*   0 */	DHCP_OPT_PARAMS_PAD,
/*   1 */	{ "NetBIOS over TCP/IP (NetBT)", 4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN), dhcp_opt43_MSFT_1, SIZEOF(dhcp_opt43_MSFT_1)},
/*   2 */	{ "Release DHCP Lease on Shutdown", 4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN),	dhcp_opt_enabledisable, SIZEOF(dhcp_opt_enabledisable)},
/*   3 */	{ "Default Router Metric Base",	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*   4 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   5 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   6 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   7 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   8 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   9 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  10 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  11 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  12 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  13 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  14 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  15 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  16 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  17 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  18 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  19 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  20 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  21 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  22 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  23 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  24 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  25 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  26 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  27 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  28 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  29 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  30 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  31 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  32 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  33 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  34 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  35 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  36 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  37 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  38 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  39 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  40 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  41 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  42 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  43 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  44 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  45 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  46 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  47 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  48 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  49 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  50 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  51 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  52 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  53 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  54 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  55 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  56 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  57 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  58 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  59 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  60 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  61 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  62 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  63 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  64 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  65 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  66 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  67 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  68 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  69 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  70 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  71 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  72 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  73 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  74 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  75 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  76 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  77 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  78 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  79 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  80 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  81 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  82 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  83 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  84 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  85 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  86 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  87 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  88 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  89 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  90 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  91 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  92 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  93 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  94 */	{ "Rogue Detection Request", 0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_FIXEDLEN)}, // http://msdn.microsoft.com/en-us/library/ee808389%28v=PROT.10%29.aspx
/*  95 */	{ "Rogue Detection Reply", 1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // http://msdn.microsoft.com/en-us/library/ee791538%28v=PROT.10%29.aspx
/*  96 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  97 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  98 */	DHCP_OPT_PARAMS_UNKNOWN,
/*  99 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 100 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 101 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 102 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 103 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 104 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 105 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 106 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 107 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 108 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 109 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 110 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 111 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 112 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 113 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 114 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 115 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 116 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 117 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 118 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 119 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 120 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 121 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 122 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 123 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 124 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 125 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 126 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 127 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 128 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 129 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 130 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 131 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 132 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 133 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 134 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 135 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 136 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 137 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 138 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 139 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 140 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 141 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 142 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 143 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 144 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 145 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 146 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 147 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 148 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 149 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 150 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 151 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 152 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 153 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 154 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 155 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 156 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 157 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 158 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 159 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 160 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 161 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 162 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 163 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 164 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 165 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 166 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 167 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 168 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 169 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 170 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 171 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 172 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 173 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 174 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 175 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 176 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 177 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 178 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 179 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 180 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 181 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 182 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 183 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 184 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 185 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 186 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 187 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 188 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 189 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 190 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 191 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 192 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 193 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 194 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 195 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 196 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 197 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 198 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 199 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 200 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 201 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 202 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 203 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 204 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 205 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 206 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 207 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 208 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 209 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 210 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 211 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 212 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 213 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 214 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 215 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 216 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 217 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 218 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 219 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 220 */	{ "NAP-SoH",		0,	DHCP_OPTP_T_BYTES}, // http://technet.microsoft.com/en-us/library/cc227332(PROT.10).aspx
/* 221 */	{ "NAP-Mask",		4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)}, // http://207.46.16.248/en-us/library/cc227334(PROT.10).aspx
/* 222 */	{ "NAP-CoID",		130,	DHCP_OPTP_T_BYTES,	(DHCP_OPTP_F_FIXEDLEN)}, // http://207.46.16.248/en-us/library/cc227335(PROT.10).aspx
/* 223 */	{ "NAP-IPv6",		1,	DHCP_OPTP_T_BYTES,	(DHCP_OPTP_F_MINLEN)}, // http://207.46.16.248/en-us/library/cc227336(PROT.10).aspx
};




union DHCP_OPT_CLIENT_FQDN_FLAGS {
	DHCP_1BYTE bFlags;
	struct FQDN_FLAGS {
		DHCP_1BYTE MBZ	:4; // MUST BE ZERO (reserved for future use)
		DHCP_1BYTE N	:1; //CS // indicates the encoding of the Domain Name field
		DHCP_1BYTE E	:1; //CS // indicates whether the server SHOULD NOT perform any DNS updates
		DHCP_1BYTE O	:1; //-S // indicates whether the server has overridden the client's preference for the "S" bit
		DHCP_1BYTE S	:1; //CS // indicates whether the server SHOULD or SHOULD NOT perform the A RR (FQDN-to-address) DNS updates
	} hf;
};



static const DHCP_OPT_PARAMS dhcp_opt82_1[] = {
/*   0 */	{ "VLAN(xx)/Module(x)/Port(x)",	4,	DHCP_OPTP_T_BYTES,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3046 DHCP Relay Agent Information Option
};

static const DHCP_OPT_PARAMS dhcp_opt82_2[] = {
/*   0 */	{ "MAC address",		6,	DHCP_OPTP_T_BYTES,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3046 DHCP Relay Agent Information Option
/*   1 */	{ "User-defined string",	1,	DHCP_OPTP_T_BYTES/*DHCP_OPTP_T_STR*/	,	(DHCP_OPTP_F_MINLEN)}, // RFC 3046 DHCP Relay Agent Information Option
};


static const DHCP_OPT_PARAMS dhcp_opt82[] = {
/*   0 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   1 */	{ "Circuit ID",			2,	DHCP_OPTP_T_SUBOPTS,(DHCP_OPTP_F_MINLEN),	(void*)dhcp_opt82_1, SIZEOF(dhcp_opt82_1)}, // RFC 3046 DHCP Relay Agent Information Option
/*   2 */	{ "Remote ID",			2,	DHCP_OPTP_T_SUBOPTS,(DHCP_OPTP_F_MINLEN),	(void*)dhcp_opt82_2, SIZEOF(dhcp_opt82_2)}, // RFC 3046 DHCP Relay Agent Information Option
/*   3 */	DHCP_OPT_PARAMS_UNKNOWN,
/*   4 */	{ "DOCSIS Device Class",	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3256 The DOCSIS Device Class DHCP
/*   5 */	{ "Link selection",		4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3527 Link Selection sub-option
/*   6 */	{ "Subscriber-ID",		1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 3993 Subscriber-ID Suboption
/*   7 */	{ "RADIUS Attributes",		2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 4014 RADIUS Attributes Suboption
/*   8 */	{ "Authentication",		2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 4030 Authentication Suboption
/*   9 */	{ "Vendor-Specific",		4,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 4243 Vendor-Specific Relay Suboption
/*  10 */	{ "Flags",			4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 5010 Relay Agent Flags Suboption
/*  11 */	{ "Server ID Override",		4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 5107 Server ID Override Suboption, see opt 54 - DHCP Server identifier
};




static const DHCP_OPT_PARAMS dhcp_options[256] = {
// start RFC 2132
/*   0 */	DHCP_OPT_PARAMS_PAD,
/*   1 */	{ dhcp_opt55[1],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*   2 */	{ dhcp_opt55[2],	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)}, // deprecated by RFC 4833 (100, 101)
/*   3 */	{ dhcp_opt55[3],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   4 */	{ dhcp_opt55[4],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   5 */	{ dhcp_opt55[5],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   6 */	{ dhcp_opt55[6],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   7 */	{ dhcp_opt55[7],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   8 */	{ dhcp_opt55[8],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*   9 */	{ dhcp_opt55[9],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  10 */	{ dhcp_opt55[10],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  11 */	{ dhcp_opt55[11],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  12 */	{ dhcp_opt55[12],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  13 */	{ dhcp_opt55[13],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  14 */	{ dhcp_opt55[14],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  15 */	{ dhcp_opt55[15],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  16 */	{ dhcp_opt55[16],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*  17 */	{ dhcp_opt55[17],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  18 */	{ dhcp_opt55[18],	1,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)},
/*  19 */	{ dhcp_opt55[19],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  20 */	{ dhcp_opt55[20],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  21 */	{ dhcp_opt55[21],	8,	DHCP_OPTP_T_IPIPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  22 */	{ dhcp_opt55[22],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  23 */	{ dhcp_opt55[23],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  24 */	{ dhcp_opt55[24],	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  25 */	{ dhcp_opt55[25],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  26 */	{ dhcp_opt55[26],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  27 */	{ dhcp_opt55[27],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  28 */	{ dhcp_opt55[28],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*  29 */	{ dhcp_opt55[29],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  30 */	{ dhcp_opt55[30],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  31 */	{ dhcp_opt55[31],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  32 */	{ dhcp_opt55[32],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*  33 */	{ dhcp_opt55[33],	8,	DHCP_OPTP_T_IPIPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  34 */	{ dhcp_opt55[34],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  35 */	{ dhcp_opt55[35],	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  36 */	{ dhcp_opt55[36],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN),					dhcp_opt36, SIZEOF(dhcp_opt36)},
/*  37 */	{ dhcp_opt55[37],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  38 */	{ dhcp_opt55[38],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)},
/*  39 */	{ dhcp_opt55[39],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)},
/*  40 */	{ dhcp_opt55[40],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  41 */	{ dhcp_opt55[41],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  42 */	{ dhcp_opt55[42],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  43 */	{ dhcp_opt55[43],	1,	DHCP_OPTP_T_SUBOPTS,	(DHCP_OPTP_F_MINLEN),					(void*)dhcp_opt43_MSFT, SIZEOF(dhcp_opt43_MSFT)}, // http://msdn.microsoft.com/en-us/library/cc227275%28v=PROT.10%29.aspx
/*  44 */	{ dhcp_opt55[44],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  45 */	{ dhcp_opt55[45],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  46 */	{ dhcp_opt55[46],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_FIXEDLEN),					dhcp_opt46, SIZEOF(dhcp_opt46)},
/*  47 */	{ dhcp_opt55[47],	1,	DHCP_OPTP_T_BYTES,	(DHCP_OPTP_F_MINLEN)},
/*  48 */	{ dhcp_opt55[48],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  49 */	{ dhcp_opt55[49],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  50 */	{ dhcp_opt55[50],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*  51 */	{ dhcp_opt55[51],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)},
/*  52 */	{ dhcp_opt55[52],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_FIXEDLEN),					dhcp_opt52, SIZEOF(dhcp_opt52)},
/*  53 */	{ dhcp_opt55[53],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_FIXEDLEN),					dhcp_opt53, SIZEOF(dhcp_opt53)},
/*  54 */	{ dhcp_opt55[54],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)},
/*  55 */	{ dhcp_opt55[55],	1,	DHCP_OPTP_T_1BYTE,	(DHCP_OPTP_F_MINLEN|DHCP_OPTP_F_ARRAY),	dhcp_opt55, SIZEOF(dhcp_opt55)},
/*  56 */	{ dhcp_opt55[56],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  57 */	{ dhcp_opt55[57],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN)},
/*  58 */	{ dhcp_opt55[58],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)},
/*  59 */	{ dhcp_opt55[59],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)},
/*  60 */	{ dhcp_opt55[60],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  61 */	{ dhcp_opt55[61],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // upd: RFC 4361
/*  62 */	{ dhcp_opt55[62],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 2242
/*  63 */	{ dhcp_opt55[63],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 2242
/*  64 */	{ dhcp_opt55[64],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  65 */	{ dhcp_opt55[65],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  66 */	{ dhcp_opt55[66],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  67 */	{ dhcp_opt55[67],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/*  68 */	{ dhcp_opt55[68],	0,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  69 */	{ dhcp_opt55[69],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  70 */	{ dhcp_opt55[70],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  71 */	{ dhcp_opt55[71],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  72 */	{ dhcp_opt55[72],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  73 */	{ dhcp_opt55[73],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  74 */	{ dhcp_opt55[74],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  75 */	{ dhcp_opt55[75],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/*  76 */	{ dhcp_opt55[76],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
// end RFC 2132
/*  77 */	{ dhcp_opt55[77],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3004 The User Class Option for DHCP
/*  78 */	{ dhcp_opt55[78],	5,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 2610 DHCP Options for Service Location Protocol
/*  79 */	{ dhcp_opt55[79],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 2610 DHCP Options for Service Location Protocol
/*  80 */	{ dhcp_opt55[80],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3679 // RFC 4039 Rapid Commit Option for DHCPv4
/*  81 */	{ dhcp_opt55[81],	3,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 4702 The DHCP Client FQDN Option
/*  82 */	{ dhcp_opt55[82],	2,	DHCP_OPTP_T_SUBOPTS,	(DHCP_OPTP_F_MINLEN),					(void*)dhcp_opt82, SIZEOF(dhcp_opt82)}, // RFC 3046	DHCP Relay Agent Information Option
/*  83 */	{ dhcp_opt55[83],	18,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3679 // RFC 4174 DHCP Option Number for iSNS
/*  84 */	DHCP_OPT_PARAMS_UNKNOWN, // RFC 3679
/*  85 */	{ dhcp_opt55[85],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 2241 DHCP Options for Novell Directory Services
/*  86 */	{ dhcp_opt55[86],	2,	DHCP_OPTP_T_STRUTF8,	(DHCP_OPTP_F_MINLEN)}, // RFC 2241 DHCP Options for Novell Directory Services
/*  87 */	{ dhcp_opt55[87],	2,	DHCP_OPTP_T_STRUTF8,	(DHCP_OPTP_F_MINLEN)}, // RFC 2241 DHCP Options for Novell Directory Services
/*  88 */	{ dhcp_opt55[88],	0,	DHCP_OPTP_T_STRRR,	(DHCP_OPTP_F_ARRAY)}, // RFC 3679 // RFC 4280 DHCP Options for BMCS
/*  89 */	{ dhcp_opt55[89],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 3679 // RFC 4280 DHCP Options for BMCS
/*  90 */	{ dhcp_opt55[90],	8,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3118
/*  91 */	{ dhcp_opt55[91],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3679 // RFC 4388 DHCP Leasequery
/*  92 */	{ dhcp_opt55[92],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 3679 // RFC 4388 DHCP Leasequery
/*  93 */	{ dhcp_opt55[93],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 3679 // RFC 4578 DHCP PXE Options
/*  94 */	{ dhcp_opt55[94],	3,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3679 // RFC 4578 DHCP PXE Options
/*  95 */	{ dhcp_opt55[95],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 3679
/*  96 */	DHCP_OPT_PARAMS_UNKNOWN, // RFC 3679
/*  97 */	{ dhcp_opt55[97],	1,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3679 // RFC 4578 DHCP PXE Options
/*  98 */	{ dhcp_opt55[98],	4,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 2485 DHCP Option for The Open Group's User Authentication Protocol
/*  99 */	{ dhcp_opt55[99],	3,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 4776 Option for Civic Addresses Configuration Information
/* 100 */	{ dhcp_opt55[100],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 3679 // RFC 4833 Timezone Options for DHCP 
/* 101 */	{ dhcp_opt55[101],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 3679 // RFC 4833 Timezone Options for DHCP 
/* 102 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 103 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 104 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 105 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 106 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 107 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 108 */	DHCP_OPT_PARAMS_UNKNOWN, // RFC 3679
/* 109 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 110 */	DHCP_OPT_PARAMS_UNKNOWN, // RFC 3679
/* 111 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 112 */	{ dhcp_opt55[112],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 113 */	{ dhcp_opt55[113],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 114 */	{ dhcp_opt55[114],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 3679
/* 115 */	DHCP_OPT_PARAMS_UNKNOWN, // RFC 3679
/* 116 */	{ dhcp_opt55[116],	1,	DHCP_OPTP_T_BOOL,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 2563 DHCP Option to Disable Stateless Auto-Configuration in IPv4 Clients
/* 117 */	{ dhcp_opt55[117],	2,	DHCP_OPTP_T_2BYTE,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 2937 The Name Service Search Option for DHCP
/* 118 */	{ dhcp_opt55[118],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3011 The IPv4 Subnet Selection Option for DHCP
/* 119 */	{ dhcp_opt55[119],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 120 */	{ dhcp_opt55[120],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 121 */	{ dhcp_opt55[121],	5,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3442 Classless Static Route Option for DHCPv4
/* 122 */	{ dhcp_opt55[122],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 3495 DHCP Option for CableLabs Clients
/* 123 */	{ dhcp_opt55[123],	16,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 3825 DHCP Option for Coordinate LCI
/* 124 */	{ dhcp_opt55[124],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 125 */	{ dhcp_opt55[125],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 126 */	{ dhcp_opt55[126],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 127 */	{ dhcp_opt55[127],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 128 */	{ dhcp_opt55[128],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 129 */	{ dhcp_opt55[129],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 130 */	{ dhcp_opt55[130],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 131 */	{ dhcp_opt55[131],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 132 */	{ dhcp_opt55[132],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 133 */	{ dhcp_opt55[133],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 134 */	{ dhcp_opt55[134],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 135 */	{ dhcp_opt55[135],	0,	DHCP_OPTP_T_NONE,	(DHCP_OPTP_F_NONE)},// UNDONE!!!!
/* 136 */	{ dhcp_opt55[136],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 5192 PAA DHCP Options
/* 137 */	{ dhcp_opt55[137],	1,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 5223 DHCP-Based LoST Discovery
/* 138 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 139 */	{ dhcp_opt55[139],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 5678 Mobility Services for DCHP Options
/* 140 */	{ dhcp_opt55[140],	2,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // RFC 5678 Mobility Services for DCHP Options
/* 141 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 142 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 143 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 144 */	{ dhcp_opt55[144],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)},
/* 145 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 146 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 147 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 148 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 149 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 150 */	{ dhcp_opt55[150],	4,	DHCP_OPTP_T_IPADDR,	(DHCP_OPTP_F_FIXEDLEN|DHCP_OPTP_F_ARRAY)}, // RFC 5859 TFTP Server Address
/* 151 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 152 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 153 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 154 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 155 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 156 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 157 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 158 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 159 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 160 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 161 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 162 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 163 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 164 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 165 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 166 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 167 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 168 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 169 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 170 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 171 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 172 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 173 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 174 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 175 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 176 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 177 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 178 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 179 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 180 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 181 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 182 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 183 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 184 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 185 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 186 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 187 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 188 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 189 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 190 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 191 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 192 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 193 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 194 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 195 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 196 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 197 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 198 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 199 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 200 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 201 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 202 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 203 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 204 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 205 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 206 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 207 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 208 */	{ dhcp_opt55[208],	4,	DHCP_OPTP_T_4BYTE,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 5071 PXELINUX Options
/* 209 */	{ dhcp_opt55[209],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 5071 PXELINUX Options
/* 210 */	{ dhcp_opt55[210],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)}, // RFC 5071 PXELINUX Options
/* 211 */	{ dhcp_opt55[211],	4,	DHCP_OPTP_T_4TIME,	(DHCP_OPTP_F_FIXEDLEN)}, // RFC 5071 PXELINUX Options
/* 212 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 213 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 214 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 215 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 216 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 217 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 218 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 219 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 220 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 221 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 222 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 223 */	DHCP_OPT_PARAMS_UNKNOWN,
// site-specific options
/* 224 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 225 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 226 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 227 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 228 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 229 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 230 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 231 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 232 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 233 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 234 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 235 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 236 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 237 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 238 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 239 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 240 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 241 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 242 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 243 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 244 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 245 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 246 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 247 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 248 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 249 */	{ dhcp_opt55[249],	5,	DHCP_OPTP_T_ADV,	(DHCP_OPTP_F_MINLEN)}, // MSFT - Classless routes
/* 250 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 251 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 252 */	{ dhcp_opt55[252],	1,	DHCP_OPTP_T_STR,	(DHCP_OPTP_F_MINLEN)},
/* 253 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 254 */	DHCP_OPT_PARAMS_UNKNOWN,
/* 255 */	DHCP_OPT_PARAMS_END // RFC 2132
};





#pragma pack()
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////

//
//  Inline byte flipping -- can be done in registers
//

#ifndef NTOHS

__inline DHCP_2BYTE USHORT_FLIP(DHCP_2BYTE usIn)
{	
return(((usIn<<8) | (usIn>>8)));
}
#define NTOHS(in)   USHORT_FLIP(in)
#define HTONS(in)   USHORT_FLIP(in)

#endif



#ifndef NTOHL

__inline DHCP_4BYTE ULONG_FLIP(u_long ulIn)
{
#if defined (_M_IA64) || defined (_M_AMD64)
return((((ulIn<<8) & 0x00ff0000) | (ulIn<<24) | ((ulIn>>8) & 0x0000ff00) | (ulIn>>24)));
#else
	__asm
	{
		mov		eax,ulIn
		bswap	eax
		mov		ulIn,eax
	};
return(ulIn);
#endif
}

#define NTOHL(in) ULONG_FLIP(in)
#define HTONL(in) ULONG_FLIP(in)

#endif




__inline void DHCPHeaderFlip(DHCP_HEADER *pDHCPHead)
{
	// op
	// htype
	// hlen
	// hops
	pDHCPHead->xid = ULONG_FLIP(pDHCPHead->xid);
	pDHCPHead->secs = USHORT_FLIP(pDHCPHead->secs);
	// flags
	//pDHCPHead->ciaddr = ULONG_FLIP(pDHCPHead->ciaddr);
	//pDHCPHead->yiaddr = ULONG_FLIP(pDHCPHead->yiaddr);
	//pDHCPHead->siaddr = ULONG_FLIP(pDHCPHead->siaddr);
	//pDHCPHead->giaddr = ULONG_FLIP(pDHCPHead->giaddr);
	// chaddr[16]
	// sname[64]
	// file[128]
	// options[]
}



__inline DHCP_4BYTE DHCPHeaderValidate(DHCP_HEADER *pDHCPPacket, DHCP_SIZE_T dwDHCPPacketSize)
{
	DHCP_4BYTE dwRet = 0;

	if (dwDHCPPacketSize < (sizeof(DHCP_HEADER)+4)) return(255); // cant check other

	///////////////if (dwDHCPPacketSize < DHCP_MIN_PACKET_LENGTH) dwRet++;
	if (DHCP_HDR_OP_MIN > pDHCPPacket->op || pDHCPPacket->op > DHCP_HDR_OP_MAX) dwRet++;
	if (pDHCPPacket->htype > DHCP_HDR_HTYPE_MAX) dwRet++;
	if (pDHCPPacket->hlen > DHCP_HDR_HLEN_MAX) dwRet++;
	if (pDHCPPacket->hops > DHCP_HDR_HOPS_MAX) dwRet++;
	///////////////if (pDHCPPacket->flags.hf.MBZ != 0) dwRet++;

	if ((*((DHCP_4BYTE*)(((BYTE*)pDHCPPacket)+sizeof(DHCP_HEADER)))) != DHCP_MAGIC_COOKIE) dwRet++;

return(dwRet);
}





#endif // AFX_DHCPMESSAGE__H__INCLUDED_