/*
 * 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: key.h
 *
 * Purpose: Implement functions for 802.11i Key management
 *
 * Author: Jerry Chen
 *
 * Date: May 29, 2003
 *
 */

#ifndef __KEY_H__
#define __KEY_H__

#include "ttype.h"
#include "tether.h"
#include "80211mgr.h"

/*---------------------  Export Definitions -------------------------*/
#define MAX_GROUP_KEY       4
#define MAX_KEY_TABLE       11
#define MAX_KEY_LEN         32
#define AES_KEY_LEN         16


#define AUTHENTICATOR_KEY   0x10000000
#define USE_KEYRSC          0x20000000
#define PAIRWISE_KEY        0x40000000
#define TRANSMIT_KEY        0x80000000

#define GROUP_KEY           0x00000000

#define KEY_CTL_WEP         0x00
#define KEY_CTL_NONE        0x01
#define KEY_CTL_TKIP        0x02
#define KEY_CTL_CCMP        0x03
#define KEY_CTL_INVALID     0xFF


typedef struct tagSKeyItem
{
    BOOL        bKeyValid;
    ULONG       uKeyLength;
    BYTE        abyKey[MAX_KEY_LEN];
    QWORD       KeyRSC;
    DWORD       dwTSC47_16;
    WORD        wTSC15_0;
    BYTE        byCipherSuite;
    BYTE        byReserved0;
    DWORD       dwKeyIndex;
    PVOID       pvKeyTable;
} SKeyItem, *PSKeyItem; //64

typedef struct tagSKeyTable
{
    BYTE        abyBSSID[U_ETHER_ADDR_LEN];  //6
    BYTE        byReserved0[2];              //8
    SKeyItem    PairwiseKey;
    SKeyItem    GroupKey[MAX_GROUP_KEY]; //64*5 = 320, 320+8=328
    DWORD       dwGTKeyIndex;            // GroupTransmitKey Index
    BOOL        bInUse;
    WORD        wKeyCtl;
    BOOL        bSoftWEP;
    BYTE        byReserved1[6];
} SKeyTable, *PSKeyTable; //352

typedef struct tagSKeyManagement
{
    SKeyTable   KeyTable[MAX_KEY_TABLE];
} SKeyManagement, *PSKeyManagement;

/*---------------------  Export Types  ------------------------------*/

/*---------------------  Export Macros ------------------------------*/

/*---------------------  Export Classes  ----------------------------*/

/*---------------------  Export Variables  --------------------------*/

/*---------------------  Export Functions  --------------------------*/

VOID KeyvInitTable(PVOID pDeviceHandler, PSKeyManagement pTable);

BOOL KeybGetKey(
    IN  PSKeyManagement pTable,
    IN  PBYTE           pbyBSSID,
    IN  DWORD           dwKeyIndex,
    OUT PSKeyItem       *pKey
    );

BOOL KeybSetKey(
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    PBYTE           pbyBSSID,
    DWORD           dwKeyIndex,
    ULONG           uKeyLength,
    PQWORD          pKeyRSC,
    PBYTE           pbyKey,
    BYTE            byKeyDecMode
    );

BOOL KeybRemoveKey(
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    PBYTE           pbyBSSID,
    DWORD           dwKeyIndex
    );

BOOL KeybRemoveAllKey (
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    PBYTE           pbyBSSID
    );

VOID KeyvRemoveWEPKey(
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    DWORD           dwKeyIndex
    );

VOID KeyvRemoveAllWEPKey(
    PVOID           pDeviceHandler,
    PSKeyManagement pTable
    );

BOOL KeybGetTransmitKey(
    IN  PSKeyManagement pTable,
    IN  PBYTE           pbyBSSID,
    IN  DWORD           dwKeyType,
    OUT PSKeyItem       *pKey
    );

BOOL KeybCheckPairewiseKey(
    IN  PSKeyManagement pTable,
    OUT PSKeyItem       *pKey
    );

BOOL KeybSetDefaultKey (
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    DWORD           dwKeyIndex,
    ULONG           uKeyLength,
    PQWORD          pKeyRSC,
    PBYTE           pbyKey,
    BYTE            byKeyDecMode
    );

BOOL KeybSetAllGroupKey (
    PVOID           pDeviceHandler,
    PSKeyManagement pTable,
    DWORD           dwKeyIndex,
    ULONG           uKeyLength,
    PQWORD          pKeyRSC,
    PBYTE           pbyKey,
    BYTE            byKeyDecMode
    );

#endif // __KEY_H__