Source code of Windows XP (NT5)
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
arppkt.h
Abstract:
Definitions for ATMARP packets
Revision History:
Who When What -------- -------- ---------------------------------------------- arvindm 07-29-96 Created
Notes:
--*/
#ifndef _ARP_PKT__H
#define _ARP_PKT__H
//
// Rounded-off size of generic Q.2931 IE header
//
#define ROUND_OFF(_size) (((_size) + 3) & ~0x3)
#define SIZEOF_Q2931_IE ROUND_OFF(sizeof(Q2931_IE))
#define SIZEOF_AAL_PARAMETERS_IE ROUND_OFF(sizeof(AAL_PARAMETERS_IE))
#define SIZEOF_ATM_TRAFFIC_DESCR_IE ROUND_OFF(sizeof(ATM_TRAFFIC_DESCRIPTOR_IE))
#define SIZEOF_ATM_BBC_IE ROUND_OFF(sizeof(ATM_BROADBAND_BEARER_CAPABILITY_IE))
#define SIZEOF_ATM_BLLI_IE ROUND_OFF(sizeof(ATM_BLLI_IE))
#define SIZEOF_ATM_QOS_IE ROUND_OFF(sizeof(ATM_QOS_CLASS_IE))
//
// Total space required for Information Elements in an outgoing call.
//
#define ATMARP_MAKE_CALL_IE_SPACE ( \
SIZEOF_Q2931_IE + SIZEOF_AAL_PARAMETERS_IE + \ SIZEOF_Q2931_IE + SIZEOF_ATM_TRAFFIC_DESCR_IE + \ SIZEOF_Q2931_IE + SIZEOF_ATM_BBC_IE + \ SIZEOF_Q2931_IE + SIZEOF_ATM_BLLI_IE + \ SIZEOF_Q2931_IE + SIZEOF_ATM_QOS_IE )
//
// Total space required for Information Elements in an outgoing AddParty.
//
#define ATMARP_ADD_PARTY_IE_SPACE ( \
SIZEOF_Q2931_IE + SIZEOF_AAL_PARAMETERS_IE + \ SIZEOF_Q2931_IE + SIZEOF_ATM_BLLI_IE )
#define AA_IPV4_ADDRESS_LENGTH 4
#define CLASSA_MASK 0x000000ff
#define CLASSB_MASK 0x0000ffff
#define CLASSC_MASK 0x00ffffff
#define CLASSD_MASK 0x000000e0
#define CLASSE_MASK 0xffffffff
//
// Standard values
//
#define AA_PKT_ATM_FORUM_AF 19
#define AA_PKT_PRO_IP ((USHORT)0x800)
//
// Values for the LLC SNAP header
//
#define LLC_SNAP_LLC0 ((UCHAR)0xAA)
#define LLC_SNAP_LLC1 ((UCHAR)0xAA)
#define LLC_SNAP_LLC2 ((UCHAR)0x03)
#define LLC_SNAP_OUI0 ((UCHAR)0x00)
#define LLC_SNAP_OUI1 ((UCHAR)0x00)
#define LLC_SNAP_OUI2 ((UCHAR)0x00)
//
// Values for EtherType
//
#define AA_PKT_ETHERTYPE_IP_NS ((USHORT)0x0008)
#define AA_PKT_ETHERTYPE_IP ((USHORT)0x800)
#define AA_PKT_ETHERTYPE_ARP ((USHORT)0x806)
#include <pshpack1.h>
//
// LLC SNAP Header
//
typedef struct _AA_PKT_LLC_SNAP_HEADER{ UCHAR LLC[3]; UCHAR OUI[3]; USHORT EtherType;} AA_PKT_LLC_SNAP_HEADER;
typedef AA_PKT_LLC_SNAP_HEADER UNALIGNED *PAA_PKT_LLC_SNAP_HEADER;
//
// ATMARP Packet Common Header format
//
typedef struct _AA_ARP_PKT_HEADER{ AA_PKT_LLC_SNAP_HEADER LLCSNAPHeader; USHORT hrd; // Hardware Type
USHORT pro; // Protocol Type
UCHAR shtl; // Source HW Addr Type+Length
UCHAR sstl; // Source HW SubAddr Type+Length
USHORT op; // Operation Code
UCHAR spln; // Source Protocol Addr Length
UCHAR thtl; // Target HW Addr Type+Length
UCHAR tstl; // Target HW SubAddr Type+Length
UCHAR tpln; // Target Protocol Addr Length
UCHAR Variable[1]; // Start of the variable part
} AA_ARP_PKT_HEADER;
typedef AA_ARP_PKT_HEADER UNALIGNED *PAA_ARP_PKT_HEADER;
#define AA_PKT_LLC_SNAP_HEADER_LENGTH (sizeof(AA_PKT_LLC_SNAP_HEADER))
#define AA_ARP_PKT_HEADER_LENGTH (sizeof(AA_ARP_PKT_HEADER)-1)
#include <poppack.h>
//
// Values for fields in an ARP packet header
//
#define AA_PKT_HRD ((USHORT)0x0013)
#define AA_PKT_PRO ((USHORT)0x0800)
#define AA_PKT_OP_TYPE_ARP_REQUEST ((USHORT)1)
#define AA_PKT_OP_TYPE_ARP_REPLY ((USHORT)2)
#define AA_PKT_OP_TYPE_INARP_REQUEST ((USHORT)8)
#define AA_PKT_OP_TYPE_INARP_REPLY ((USHORT)9)
#define AA_PKT_OP_TYPE_ARP_NAK ((USHORT)10)
#define AA_PKT_ATM_ADDRESS_NSAP ((UCHAR)0x00)
#define AA_PKT_ATM_ADDRESS_E164 ((UCHAR)0x40)
#define AA_PKT_ATM_ADDRESS_BIT ((UCHAR)0x40)
//
// Internal representation of the contents of an
// ARP packet:
//
typedef struct _AA_ARP_PKT_CONTENTS{ UCHAR SrcAtmNumberTypeLen; UCHAR SrcAtmSubaddrTypeLen; UCHAR DstAtmNumberTypeLen; UCHAR DstAtmSubaddrTypeLen; UCHAR UNALIGNED * pSrcAtmNumber; UCHAR UNALIGNED * pSrcAtmSubaddress; UCHAR UNALIGNED * pDstAtmNumber; UCHAR UNALIGNED * pDstAtmSubaddress; UCHAR UNALIGNED * pSrcIPAddress; UCHAR UNALIGNED * pDstIPAddress;} AA_ARP_PKT_CONTENTS, *PAA_ARP_PKT_CONTENTS;
/*++
BOOLEANAA_PKT_LLC_SNAP_HEADER_OK( IN PAA_PKT_LLC_SNAP_HEADER pPktHeader)Check if a received LLC/SNAP header is valid.--*/#define AA_PKT_LLC_SNAP_HEADER_OK(pH) \
(((pH)->LLC[0] == LLC_SNAP_LLC0) && \ ((pH)->LLC[1] == LLC_SNAP_LLC1) && \ ((pH)->LLC[2] == LLC_SNAP_LLC2) && \ ((pH)->OUI[0] == LLC_SNAP_OUI0) && \ ((pH)->OUI[1] == LLC_SNAP_OUI1) && \ ((pH)->OUI[2] == LLC_SNAP_OUI2))
/*++
UCHARAA_PKT_ATM_ADDRESS_TO_TYPE_LEN( IN PATM_ADDRESS pAtmAddress)Return a one-byte Type+Length field corresponding to an ATM Address--*/#define AA_PKT_ATM_ADDRESS_TO_TYPE_LEN(pAtmAddress) \
((UCHAR)((pAtmAddress)->NumberOfDigits) | \ (((pAtmAddress)->AddressType == ATM_E164) ? \ AA_PKT_ATM_ADDRESS_E164 : AA_PKT_ATM_ADDRESS_NSAP))
/*++
VOIDAA_PKT_TYPE_LEN_TO_ATM_ADDRESS( IN UCHAR TypeLen, IN ATM_ADDRESSTYPE * pAtmAddressType, IN ULONG * pAtmAddressLength)Convert a Type+Length field in an ATMARP packet to Type, Lengthvalues in an ATM_ADDRESS structure--*/#define AA_PKT_TYPE_LEN_TO_ATM_ADDRESS(TypeLen, pAtmType, pAtmLen) \
{ \ *(pAtmType) = \ ((((TypeLen) & AA_PKT_ATM_ADDRESS_BIT) == \ AA_PKT_ATM_ADDRESS_E164)? ATM_E164: ATM_NSAP); \ *(pAtmLen) = \ (ULONG)((TypeLen) & ~AA_PKT_ATM_ADDRESS_BIT); \ }
//
// ATM Address ESI length, and offset from the beginning.
//
#define AA_ATM_ESI_LEN 6
#define AA_ATM_ESI_OFFSET 13
//
// DHCP constants
//
#define AA_DEST_DHCP_PORT_OFFSET 2
#define AA_DHCP_SERVER_PORT 0x4300
#define AA_DHCP_CLIENT_PORT 0x4400
#define AA_DHCP_MIN_LENGTH 44
#define AA_DHCP_ESI_OFFSET 28
#endif // _ARP_PKT__H
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