INVALID_PF_IF_INDEX	equ 0FFFFFFFFh
ZERO_PF_IP_ADDR		equ 0
PF_FORWARD_ACTION	TYPEDEF QWORD
PF_FORWARD			equ 0
PF_DROP				equ 1
PF_PASS				equ 2
PF_ICMP_ON_DROP		equ 3

PacketFilterExtension TYPEDEF PROTO PacketHeader:PCHAR,Packet:PCHAR,PacketLength:LONG,RecvInterfaceIndex:LONG,\
SendInterfaceIndex:LONG,RecvLinkNextHop:IPAddr,SendLinkNextHop:IPAddr
PacketFilterExtensionPtr TYPEDEF PTR PacketFilterExtension
PF_SET_EXTENSION_HOOK_INFO STRUC
	ExtensionPointer	PacketFilterExtensionPtr ?
PF_SET_EXTENSION_HOOK_INFO ENDS
PPF_SET_EXTENSION_HOOK_INFO TYPEDEF PTR PF_SET_EXTENSION_HOOK_INFO
DD_IPFLTRDRVR_DEVICE_NAME   equ <\Device\IPFILTERDRIVER>
FSCTL_IPFLTRDRVR_BASE	equ FILE_DEVICE_NETWORK