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/*
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
* All rights reserved.
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* File: tether.h
*
* Purpose:
*
* Author: Tevin Chen
*
* Date: Jan. 28, 1997
*
*/
#ifndef __TETHER_H__
#define __TETHER_H__
#include <linux/if_ether.h>
#include "ttype.h"
/*--------------------- Export Definitions -------------------------*/
//
// constants
//
#define U_TYPE_LEN 2 //
#define U_CRC_LEN 4 //
#define U_HEADER_LEN (ETH_ALEN * 2 + U_TYPE_LEN)
#define U_ETHER_ADDR_STR_LEN (ETH_ALEN * 2 + 1)
// Ethernet address string length
#define MIN_DATA_LEN 46 // min data length
#define MAX_DATA_LEN 1500 // max data length
#define MIN_PACKET_LEN (MIN_DATA_LEN + U_HEADER_LEN)
// 60
// min total packet length (tx)
#define MAX_PACKET_LEN (MAX_DATA_LEN + U_HEADER_LEN)
// 1514
// max total packet length (tx)
#define MAX_LOOKAHEAD_SIZE MAX_PACKET_LEN
#define U_MULTI_ADDR_LEN 8 // multicast address length
#ifdef __BIG_ENDIAN
#define TYPE_PKT_IP 0x0800 //
#define TYPE_PKT_ARP 0x0806 //
#define TYPE_PKT_RARP 0x8035 //
#define TYPE_PKT_IPX 0x8137 //
#define TYPE_PKT_802_1x 0x888e
#define TYPE_PKT_PreAuth 0x88C7
#define TYPE_PKT_PING_M_REQ 0x8011 // master reguest
#define TYPE_PKT_PING_S_GNT 0x8022 // slave grant
#define TYPE_PKT_PING_M 0x8077 // pingpong master packet
#define TYPE_PKT_PING_S 0x8088 // pingpong slave packet
#define TYPE_PKT_WOL_M_REQ 0x8033 // WOL waker request
#define TYPE_PKT_WOL_S_GNT 0x8044 // WOL sleeper grant
#define TYPE_MGMT_PROBE_RSP 0x5000
#define TYPE_PKT_VNT_DIAG 0x8011 // Diag Pkt
#define TYPE_PKT_VNT_PER 0x8888 // Diag PER Pkt
//
// wFrameCtl field in the S802_11Header
//
// NOTE....
// in network byte order, high byte is going first
#define FC_TODS 0x0001
#define FC_FROMDS 0x0002
#define FC_MOREFRAG 0x0004
#define FC_RETRY 0x0008
#define FC_POWERMGT 0x0010
#define FC_MOREDATA 0x0020
#define FC_WEP 0x0040
#define TYPE_802_11_ATIM 0x9000
#define TYPE_802_11_DATA 0x0800
#define TYPE_802_11_CTL 0x0400
#define TYPE_802_11_MGMT 0x0000
#define TYPE_802_11_MASK 0x0C00
#define TYPE_SUBTYPE_MASK 0xFC00
#define TYPE_802_11_NODATA 0x4000
#define TYPE_DATE_NULL 0x4800
#define TYPE_CTL_PSPOLL 0xa400
#define TYPE_CTL_RTS 0xb400
#define TYPE_CTL_CTS 0xc400
#define TYPE_CTL_ACK 0xd400
//#define WEP_IV_MASK 0xFFFFFF00
#else //if LITTLE_ENDIAN
//
// wType field in the SEthernetHeader
//
// NOTE....
// in network byte order, high byte is going first
#define TYPE_PKT_IP 0x0008 //
#define TYPE_PKT_ARP 0x0608 //
#define TYPE_PKT_RARP 0x3580 //
#define TYPE_PKT_IPX 0x3781 //
#define TYPE_PKT_802_1x 0x8e88
#define TYPE_PKT_PreAuth 0xC788
#define TYPE_PKT_PING_M_REQ 0x1180 // master reguest
#define TYPE_PKT_PING_S_GNT 0x2280 // slave grant
#define TYPE_PKT_PING_M 0x7780 // pingpong master packet
#define TYPE_PKT_PING_S 0x8880 // pingpong slave packet
#define TYPE_PKT_WOL_M_REQ 0x3380 // WOL waker request
#define TYPE_PKT_WOL_S_GNT 0x4480 // WOL sleeper grant
#define TYPE_MGMT_PROBE_RSP 0x0050
#define TYPE_PKT_VNT_DIAG 0x1180 // Diag Pkt
#define TYPE_PKT_VNT_PER 0x8888 // Diag PER Pkt
//
// wFrameCtl field in the S802_11Header
//
// NOTE....
// in network byte order, high byte is going first
#define FC_TODS 0x0100
#define FC_FROMDS 0x0200
#define FC_MOREFRAG 0x0400
#define FC_RETRY 0x0800
#define FC_POWERMGT 0x1000
#define FC_MOREDATA 0x2000
#define FC_WEP 0x4000
#define TYPE_802_11_ATIM 0x0090
#define TYPE_802_11_DATA 0x0008
#define TYPE_802_11_CTL 0x0004
#define TYPE_802_11_MGMT 0x0000
#define TYPE_802_11_MASK 0x000C
#define TYPE_SUBTYPE_MASK 0x00FC
#define TYPE_802_11_NODATA 0x0040
#define TYPE_DATE_NULL 0x0048
#define TYPE_CTL_PSPOLL 0x00a4
#define TYPE_CTL_RTS 0x00b4
#define TYPE_CTL_CTS 0x00c4
#define TYPE_CTL_ACK 0x00d4
//#define WEP_IV_MASK 0x00FFFFFF
#endif //#ifdef __BIG_ENDIAN
#define WEP_IV_MASK 0x00FFFFFF
/*--------------------- Export Types ------------------------------*/
//
// Ethernet packet
//
typedef struct tagSEthernetHeader {
BYTE abyDstAddr[ETH_ALEN];
BYTE abySrcAddr[ETH_ALEN];
WORD wType;
}__attribute__ ((__packed__))
SEthernetHeader, *PSEthernetHeader;
//
// 802_3 packet
//
typedef struct tagS802_3Header {
BYTE abyDstAddr[ETH_ALEN];
BYTE abySrcAddr[ETH_ALEN];
WORD wLen;
}__attribute__ ((__packed__))
S802_3Header, *PS802_3Header;
//
// 802_11 packet
//
typedef struct tagS802_11Header {
WORD wFrameCtl;
WORD wDurationID;
BYTE abyAddr1[ETH_ALEN];
BYTE abyAddr2[ETH_ALEN];
BYTE abyAddr3[ETH_ALEN];
WORD wSeqCtl;
BYTE abyAddr4[ETH_ALEN];
}__attribute__ ((__packed__))
S802_11Header, *PS802_11Header;
/*--------------------- Export Macros ------------------------------*/
// Frame type macro
#define IS_MULTICAST_ADDRESS(pbyEtherAddr) \
((*(PBYTE)(pbyEtherAddr) & 0x01) == 1)
#define IS_BROADCAST_ADDRESS(pbyEtherAddr) ( \
(*(PDWORD)(pbyEtherAddr) == 0xFFFFFFFFL) && \
(*(PWORD)((PBYTE)(pbyEtherAddr) + 4) == 0xFFFF) \
)
#define IS_NULL_ADDRESS(pbyEtherAddr) ( \
(*(PDWORD)(pbyEtherAddr) == 0L) && \
(*(PWORD)((PBYTE)(pbyEtherAddr) + 4) == 0) \
)
#define IS_ETH_ADDRESS_EQUAL(pbyAddr1, pbyAddr2) ( \
(*(PDWORD)(pbyAddr1) == *(PDWORD)(pbyAddr2)) && \
(*(PWORD)((PBYTE)(pbyAddr1) + 4) == \
*(PWORD)((PBYTE)(pbyAddr2) + 4)) \
)
/*--------------------- Export Classes ----------------------------*/
/*--------------------- Export Variables --------------------------*/
/*--------------------- Export Functions --------------------------*/
BYTE ETHbyGetHashIndexByCrc32(PBYTE pbyMultiAddr);
//BYTE ETHbyGetHashIndexByCrc(PBYTE pbyMultiAddr);
BOOL ETHbIsBufferCrc32Ok(PBYTE pbyBuffer, UINT cbFrameLength);
#endif // __TETHER_H__
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