Linux-2.6.33.2/drivers/staging/vt6656/key.c
/*
* 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.c
*
* Purpose: Implement functions for 802.11i Key management
*
* Author: Jerry Chen
*
* Date: May 29, 2003
*
* Functions:
* KeyvInitTable - Init Key management table
* KeybGetKey - Get Key from table
* KeybSetKey - Set Key to table
* KeybRemoveKey - Remove Key from table
* KeybGetTransmitKey - Get Transmit Key from table
*
* Revision History:
*
*/
#include "tmacro.h"
#include "key.h"
#include "mac.h"
#include "rndis.h"
#include "control.h"
/*--------------------- Static Definitions -------------------------*/
/*--------------------- Static Classes ----------------------------*/
/*--------------------- Static Variables --------------------------*/
static int msglevel =MSG_LEVEL_INFO;
//static int msglevel =MSG_LEVEL_DEBUG;
/*--------------------- Static Functions --------------------------*/
/*--------------------- Export Variables --------------------------*/
/*--------------------- Static Definitions -------------------------*/
/*--------------------- Static Classes ----------------------------*/
/*--------------------- Static Variables --------------------------*/
/*--------------------- Static Functions --------------------------*/
static VOID
s_vCheckKeyTableValid (PVOID pDeviceHandler, PSKeyManagement pTable)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i;
WORD wLength = 0;
BYTE pbyData[MAX_KEY_TABLE];
for (i=0;i<MAX_KEY_TABLE;i++) {
if ((pTable->KeyTable[i].bInUse == TRUE) &&
(pTable->KeyTable[i].PairwiseKey.bKeyValid == FALSE) &&
(pTable->KeyTable[i].GroupKey[0].bKeyValid == FALSE) &&
(pTable->KeyTable[i].GroupKey[1].bKeyValid == FALSE) &&
(pTable->KeyTable[i].GroupKey[2].bKeyValid == FALSE) &&
(pTable->KeyTable[i].GroupKey[3].bKeyValid == FALSE)
) {
pTable->KeyTable[i].bInUse = FALSE;
pTable->KeyTable[i].wKeyCtl = 0;
pTable->KeyTable[i].bSoftWEP = FALSE;
pbyData[wLength++] = (BYTE) i;
//MACvDisableKeyEntry(pDevice, i);
}
}
if ( wLength != 0 ) {
CONTROLnsRequestOut(pDevice,
MESSAGE_TYPE_CLRKEYENTRY,
0,
0,
wLength,
pbyData
);
}
}
/*--------------------- Export Functions --------------------------*/
/*
* Description: Init Key management table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* Out:
* none
*
* Return Value: none
*
*/
VOID KeyvInitTable(PVOID pDeviceHandler, PSKeyManagement pTable)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i;
int jj;
BYTE pbyData[MAX_KEY_TABLE+1];
spin_lock_irq(&pDevice->lock);
for (i=0;i<MAX_KEY_TABLE;i++) {
pTable->KeyTable[i].bInUse = FALSE;
pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
pTable->KeyTable[i].PairwiseKey.pvKeyTable = (PVOID)&pTable->KeyTable[i];
for (jj=0; jj < MAX_GROUP_KEY; jj++) {
pTable->KeyTable[i].GroupKey[jj].bKeyValid = FALSE;
pTable->KeyTable[i].GroupKey[jj].pvKeyTable = (PVOID) &(pTable->KeyTable[i]);
}
pTable->KeyTable[i].wKeyCtl = 0;
pTable->KeyTable[i].dwGTKeyIndex = 0;
pTable->KeyTable[i].bSoftWEP = FALSE;
pbyData[i] = (BYTE) i;
}
pbyData[i] = (BYTE) i;
CONTROLnsRequestOut(pDevice,
MESSAGE_TYPE_CLRKEYENTRY,
0,
0,
11,
pbyData
);
spin_unlock_irq(&pDevice->lock);
return;
}
/*
* Description: Get Key from table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* pbyBSSID - BSSID of Key
* dwKeyIndex - Key Index (0xFFFFFFFF means pairwise key)
* Out:
* pKey - Key return
*
* Return Value: TRUE if found otherwise FALSE
*
*/
BOOL KeybGetKey (
IN PSKeyManagement pTable,
IN PBYTE pbyBSSID,
IN DWORD dwKeyIndex,
OUT PSKeyItem *pKey
)
{
int i;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetKey() \n");
*pKey = NULL;
for (i=0;i<MAX_KEY_TABLE;i++) {
if ((pTable->KeyTable[i].bInUse == TRUE) &&
IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
if (dwKeyIndex == 0xFFFFFFFF) {
if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
*pKey = &(pTable->KeyTable[i].PairwiseKey);
return (TRUE);
}
else {
return (FALSE);
}
} else if (dwKeyIndex < MAX_GROUP_KEY) {
if (pTable->KeyTable[i].GroupKey[dwKeyIndex].bKeyValid == TRUE) {
*pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex]);
return (TRUE);
}
else {
return (FALSE);
}
}
else {
return (FALSE);
}
}
}
return (FALSE);
}
/*
* Description: Set Key to table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* pbyBSSID - BSSID of Key
* dwKeyIndex - Key index (reference to NDIS DDK)
* uKeyLength - Key length
* KeyRSC - Key RSC
* pbyKey - Pointer to key
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
BOOL KeybSetKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
PBYTE pbyBSSID,
DWORD dwKeyIndex,
ULONG uKeyLength,
PQWORD pKeyRSC,
PBYTE pbyKey,
BYTE byKeyDecMode
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i,j;
UINT ii;
PSKeyItem pKey;
UINT uKeyIdx;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetKey: %lX\n", dwKeyIndex);
j = (MAX_KEY_TABLE-1);
for (i=0;i<(MAX_KEY_TABLE-1);i++) {
if ((pTable->KeyTable[i].bInUse == FALSE) &&
(j == (MAX_KEY_TABLE-1))) {
// found empty table
j = i;
}
if ((pTable->KeyTable[i].bInUse == TRUE) &&
IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
// found table already exist
if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
// Pairwise key
pKey = &(pTable->KeyTable[i].PairwiseKey);
pTable->KeyTable[i].wKeyCtl &= 0xFFF0; // clear pairwise key control filed
pTable->KeyTable[i].wKeyCtl |= byKeyDecMode;
uKeyIdx = 4; // use HW key entry 4 for pairwise key
} else {
// Group key
if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
return (FALSE);
pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
if ((dwKeyIndex & TRANSMIT_KEY) != 0) {
// Group transmit key
pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
}
pTable->KeyTable[i].wKeyCtl &= 0xFF0F; // clear group key control filed
pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
pTable->KeyTable[i].wKeyCtl |= 0x0040; // use group key for group address
uKeyIdx = (dwKeyIndex & 0x000000FF);
}
pTable->KeyTable[i].wKeyCtl |= 0x8000; // enable on-fly
pKey->bKeyValid = TRUE;
pKey->uKeyLength = uKeyLength;
pKey->dwKeyIndex = dwKeyIndex;
pKey->byCipherSuite = byKeyDecMode;
memcpy(pKey->abyKey, pbyKey, uKeyLength);
if (byKeyDecMode == KEY_CTL_WEP) {
if (uKeyLength == WLAN_WEP40_KEYLEN)
pKey->abyKey[15] &= 0x7F;
if (uKeyLength == WLAN_WEP104_KEYLEN)
pKey->abyKey[15] |= 0x80;
}
MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey);
if ((dwKeyIndex & USE_KEYRSC) == 0) {
// RSC set by NIC
memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
}
else {
memcpy(&(pKey->KeyRSC), pKeyRSC, sizeof(QWORD));
}
pKey->dwTSC47_16 = 0;
pKey->wTSC15_0 = 0;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", pKey->uKeyLength);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
for (ii = 0; ii < pKey->uKeyLength; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
return (TRUE);
}
}
if (j < (MAX_KEY_TABLE-1)) {
memcpy(pTable->KeyTable[j].abyBSSID,pbyBSSID,U_ETHER_ADDR_LEN);
pTable->KeyTable[j].bInUse = TRUE;
if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
// Pairwise key
pKey = &(pTable->KeyTable[j].PairwiseKey);
pTable->KeyTable[j].wKeyCtl &= 0xFFF0; // clear pairwise key control filed
pTable->KeyTable[j].wKeyCtl |= byKeyDecMode;
uKeyIdx = 4; // use HW key entry 4 for pairwise key
} else {
// Group key
if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
return (FALSE);
pKey = &(pTable->KeyTable[j].GroupKey[dwKeyIndex & 0x000000FF]);
if ((dwKeyIndex & TRANSMIT_KEY) != 0) {
// Group transmit key
pTable->KeyTable[j].dwGTKeyIndex = dwKeyIndex;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(N)[%lX]: %d\n", pTable->KeyTable[j].dwGTKeyIndex, j);
}
pTable->KeyTable[j].wKeyCtl &= 0xFF0F; // clear group key control filed
pTable->KeyTable[j].wKeyCtl |= (byKeyDecMode << 4);
pTable->KeyTable[j].wKeyCtl |= 0x0040; // use group key for group address
uKeyIdx = (dwKeyIndex & 0x000000FF);
}
pTable->KeyTable[j].wKeyCtl |= 0x8000; // enable on-fly
pKey->bKeyValid = TRUE;
pKey->uKeyLength = uKeyLength;
pKey->dwKeyIndex = dwKeyIndex;
pKey->byCipherSuite = byKeyDecMode;
memcpy(pKey->abyKey, pbyKey, uKeyLength);
if (byKeyDecMode == KEY_CTL_WEP) {
if (uKeyLength == WLAN_WEP40_KEYLEN)
pKey->abyKey[15] &= 0x7F;
if (uKeyLength == WLAN_WEP104_KEYLEN)
pKey->abyKey[15] |= 0x80;
}
MACvSetKeyEntry(pDevice, pTable->KeyTable[j].wKeyCtl, j, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey);
if ((dwKeyIndex & USE_KEYRSC) == 0) {
// RSC set by NIC
memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
}
else {
memcpy(&(pKey->KeyRSC), pKeyRSC, sizeof(QWORD));
}
pKey->dwTSC47_16 = 0;
pKey->wTSC15_0 = 0;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(N): \n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
for (ii = 0; ii < pKey->uKeyLength; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
return (TRUE);
}
return (FALSE);
}
/*
* Description: Remove Key from table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* pbyBSSID - BSSID of Key
* dwKeyIndex - Key Index (reference to NDIS DDK)
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
BOOL KeybRemoveKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
PBYTE pbyBSSID,
DWORD dwKeyIndex
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i;
BOOL bReturnValue = FALSE;
if (IS_BROADCAST_ADDRESS(pbyBSSID)) {
// dealte all key
if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
for (i=0;i<MAX_KEY_TABLE;i++) {
pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
}
bReturnValue = TRUE;
}
else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
for (i=0;i<MAX_KEY_TABLE;i++) {
pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
// remove Group transmit key
pTable->KeyTable[i].dwGTKeyIndex = 0;
}
}
bReturnValue = TRUE;
}
else {
bReturnValue = FALSE;
}
} else {
for (i=0;i<MAX_KEY_TABLE;i++) {
if ( (pTable->KeyTable[i].bInUse == TRUE) &&
IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
bReturnValue = TRUE;
break;
}
else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
// remove Group transmit key
pTable->KeyTable[i].dwGTKeyIndex = 0;
}
bReturnValue = TRUE;
break;
}
else {
bReturnValue = FALSE;
break;
}
} //pTable->KeyTable[i].bInUse == TRUE
} //for
bReturnValue = TRUE;
}
s_vCheckKeyTableValid(pDevice,pTable);
return bReturnValue;
}
/*
* Description: Remove Key from table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* pbyBSSID - BSSID of Key
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
BOOL KeybRemoveAllKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
PBYTE pbyBSSID
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i,u;
for (i=0;i<MAX_KEY_TABLE;i++) {
if ((pTable->KeyTable[i].bInUse == TRUE) &&
IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
for(u=0;u<MAX_GROUP_KEY;u++) {
pTable->KeyTable[i].GroupKey[u].bKeyValid = FALSE;
}
pTable->KeyTable[i].dwGTKeyIndex = 0;
s_vCheckKeyTableValid(pDevice, pTable);
return (TRUE);
}
}
return (FALSE);
}
/*
* Description: Remove WEP Key from table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
VOID KeyvRemoveWEPKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
DWORD dwKeyIndex
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
if (pTable->KeyTable[MAX_KEY_TABLE-1].bInUse == TRUE) {
if (pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].byCipherSuite == KEY_CTL_WEP) {
pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex & 0x7FFFFFFF)) {
// remove Group transmit key
pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = 0;
}
}
}
s_vCheckKeyTableValid(pDevice, pTable);
}
return;
}
VOID KeyvRemoveAllWEPKey (
PVOID pDeviceHandler,
PSKeyManagement pTable
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i;
for(i=0;i<MAX_GROUP_KEY;i++) {
KeyvRemoveWEPKey(pDevice,pTable, i);
}
}
/*
* Description: Get Transmit Key from table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* pbyBSSID - BSSID of Key
* Out:
* pKey - Key return
*
* Return Value: TRUE if found otherwise FALSE
*
*/
BOOL KeybGetTransmitKey (
IN PSKeyManagement pTable,
IN PBYTE pbyBSSID,
IN DWORD dwKeyType,
OUT PSKeyItem *pKey
)
{
int i, ii;
*pKey = NULL;
for (i=0;i<MAX_KEY_TABLE;i++) {
if ((pTable->KeyTable[i].bInUse == TRUE) &&
IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
if (dwKeyType == PAIRWISE_KEY) {
if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
*pKey = &(pTable->KeyTable[i].PairwiseKey);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PAIRWISE_KEY: KeyTable.abyBSSID: ");
for (ii = 0; ii < 6; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
return (TRUE);
}
else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PairwiseKey.bKeyValid == FALSE\n");
return (FALSE);
}
} // End of Type == PAIRWISE
else {
if (pTable->KeyTable[i].dwGTKeyIndex == 0) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: dwGTKeyIndex == 0 !!!\n");
return FALSE;
}
if (pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)].bKeyValid == TRUE) {
*pKey = &(pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)]);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GROUP_KEY: KeyTable.abyBSSID\n");
for (ii = 0; ii < 6; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %lX\n", pTable->KeyTable[i].dwGTKeyIndex);
return (TRUE);
}
else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GroupKey.bKeyValid == FALSE\n");
return (FALSE);
}
} // End of Type = GROUP
} // BSSID match
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: NO Match BSSID !!! ");
for (ii = 0; ii < 6; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", *(pbyBSSID+ii));
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
return (FALSE);
}
/*
* Description: Check Pairewise Key
*
* Parameters:
* In:
* pTable - Pointer to Key table
* Out:
* none
*
* Return Value: TRUE if found otherwise FALSE
*
*/
BOOL KeybCheckPairewiseKey (
IN PSKeyManagement pTable,
OUT PSKeyItem *pKey
)
{
int i;
*pKey = NULL;
for (i=0;i<MAX_KEY_TABLE;i++) {
if ((pTable->KeyTable[i].bInUse == TRUE) &&
(pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE)) {
*pKey = &(pTable->KeyTable[i].PairwiseKey);
return (TRUE);
}
}
return (FALSE);
}
/*
* Description: Set Key to table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* dwKeyIndex - Key index (reference to NDIS DDK)
* uKeyLength - Key length
* KeyRSC - Key RSC
* pbyKey - Pointer to key
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
BOOL KeybSetDefaultKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
DWORD dwKeyIndex,
ULONG uKeyLength,
PQWORD pKeyRSC,
PBYTE pbyKey,
BYTE byKeyDecMode
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
UINT ii;
PSKeyItem pKey;
UINT uKeyIdx;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetDefaultKey: %1x, %d \n", (int)dwKeyIndex, (int)uKeyLength);
if ((dwKeyIndex & PAIRWISE_KEY) != 0) { // Pairwise key
return (FALSE);
} else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
return (FALSE);
}
pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = TRUE;
for(ii=0;ii<U_ETHER_ADDR_LEN;ii++)
pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;
// Group key
pKey = &(pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF]);
if ((dwKeyIndex & TRANSMIT_KEY) != 0) {
// Group transmit key
pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = dwKeyIndex;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex, MAX_KEY_TABLE-1);
}
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl &= 0x7F00; // clear all key control filed
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode << 4);
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode);
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x0044; // use group key for all address
uKeyIdx = (dwKeyIndex & 0x000000FF);
if ((uKeyLength == WLAN_WEP232_KEYLEN) &&
(byKeyDecMode == KEY_CTL_WEP)) {
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x4000; // disable on-fly disable address match
pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP = TRUE;
} else {
if (pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP == FALSE)
pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0xC000; // enable on-fly disable address match
}
pKey->bKeyValid = TRUE;
pKey->uKeyLength = uKeyLength;
pKey->dwKeyIndex = dwKeyIndex;
pKey->byCipherSuite = byKeyDecMode;
memcpy(pKey->abyKey, pbyKey, uKeyLength);
if (byKeyDecMode == KEY_CTL_WEP) {
if (uKeyLength == WLAN_WEP40_KEYLEN)
pKey->abyKey[15] &= 0x7F;
if (uKeyLength == WLAN_WEP104_KEYLEN)
pKey->abyKey[15] |= 0x80;
}
MACvSetKeyEntry(pDevice, pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl, MAX_KEY_TABLE-1, uKeyIdx, pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID, (PDWORD) pKey->abyKey);
if ((dwKeyIndex & USE_KEYRSC) == 0) {
// RSC set by NIC
memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
} else {
memcpy(&(pKey->KeyRSC), pKeyRSC, sizeof(QWORD));
}
pKey->dwTSC47_16 = 0;
pKey->wTSC15_0 = 0;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n", pKey->bKeyValid);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n", (int)pKey->uKeyLength);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: \n");
for (ii = 0; ii < pKey->uKeyLength; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x", pKey->abyKey[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n", pKey->dwTSC47_16);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n", pKey->wTSC15_0);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n", pKey->dwKeyIndex);
return (TRUE);
}
/*
* Description: Set Key to table
*
* Parameters:
* In:
* pTable - Pointer to Key table
* dwKeyIndex - Key index (reference to NDIS DDK)
* uKeyLength - Key length
* KeyRSC - Key RSC
* pbyKey - Pointer to key
* Out:
* none
*
* Return Value: TRUE if success otherwise FALSE
*
*/
BOOL KeybSetAllGroupKey (
PVOID pDeviceHandler,
PSKeyManagement pTable,
DWORD dwKeyIndex,
ULONG uKeyLength,
PQWORD pKeyRSC,
PBYTE pbyKey,
BYTE byKeyDecMode
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
int i;
UINT ii;
PSKeyItem pKey;
UINT uKeyIdx;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %lX\n", dwKeyIndex);
if ((dwKeyIndex & PAIRWISE_KEY) != 0) { // Pairwise key
return (FALSE);
} else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
return (FALSE);
}
for (i=0; i < MAX_KEY_TABLE-1; i++) {
if (pTable->KeyTable[i].bInUse == TRUE) {
// found table already exist
// Group key
pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
if ((dwKeyIndex & TRANSMIT_KEY) != 0) {
// Group transmit key
pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
}
pTable->KeyTable[i].wKeyCtl &= 0xFF0F; // clear group key control filed
pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
pTable->KeyTable[i].wKeyCtl |= 0x0040; // use group key for group address
uKeyIdx = (dwKeyIndex & 0x000000FF);
pTable->KeyTable[i].wKeyCtl |= 0x8000; // enable on-fly
pKey->bKeyValid = TRUE;
pKey->uKeyLength = uKeyLength;
pKey->dwKeyIndex = dwKeyIndex;
pKey->byCipherSuite = byKeyDecMode;
memcpy(pKey->abyKey, pbyKey, uKeyLength);
if (byKeyDecMode == KEY_CTL_WEP) {
if (uKeyLength == WLAN_WEP40_KEYLEN)
pKey->abyKey[15] &= 0x7F;
if (uKeyLength == WLAN_WEP104_KEYLEN)
pKey->abyKey[15] |= 0x80;
}
MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pTable->KeyTable[i].abyBSSID, (PDWORD) pKey->abyKey);
if ((dwKeyIndex & USE_KEYRSC) == 0) {
// RSC set by NIC
memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
}
else {
memcpy(&(pKey->KeyRSC), pKeyRSC, sizeof(QWORD));
}
pKey->dwTSC47_16 = 0;
pKey->wTSC15_0 = 0;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
for (ii = 0; ii < pKey->uKeyLength; ii++) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", pKey->abyKey[ii]);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
//DBG_PRN_GRP12(("pKey->dwTSC47_16: %lX\n ", pKey->dwTSC47_16));
//DBG_PRN_GRP12(("pKey->wTSC15_0: %X\n ", pKey->wTSC15_0));
//DBG_PRN_GRP12(("pKey->dwKeyIndex: %lX\n ", pKey->dwKeyIndex));
} // (pTable->KeyTable[i].bInUse == TRUE)
}
return (TRUE);
}