17f3ced05f
Return from work queues on flag fMP_DISCONNECTED to prevent any scheduling threads past closing of device. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1434 lines
51 KiB
C
1434 lines
51 KiB
C
/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* File: dpc.c
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*
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* Purpose: handle dpc rx functions
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*
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* Author: Lyndon Chen
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*
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* Date: May 20, 2003
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*
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* Functions:
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* device_receive_frame - Rcv 802.11 frame function
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* s_bAPModeRxCtl- AP Rcv frame filer Ctl.
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* s_bAPModeRxData- AP Rcv data frame handle
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* s_bHandleRxEncryption- Rcv decrypted data via on-fly
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* s_bHostWepRxEncryption- Rcv encrypted data via host
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* s_byGetRateIdx- get rate index
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* s_vGetDASA- get data offset
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* s_vProcessRxMACHeader- Rcv 802.11 and translate to 802.3
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*
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* Revision History:
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*
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*/
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#include "device.h"
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#include "rxtx.h"
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#include "tether.h"
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#include "card.h"
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#include "bssdb.h"
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#include "mac.h"
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#include "baseband.h"
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#include "michael.h"
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#include "tkip.h"
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#include "tcrc.h"
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#include "wctl.h"
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#include "hostap.h"
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#include "rf.h"
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#include "iowpa.h"
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#include "aes_ccmp.h"
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#include "datarate.h"
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#include "usbpipe.h"
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//static int msglevel =MSG_LEVEL_DEBUG;
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static int msglevel =MSG_LEVEL_INFO;
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const u8 acbyRxRate[MAX_RATE] =
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{2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
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static u8 s_byGetRateIdx(u8 byRate);
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static
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void
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s_vGetDASA(
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u8 * pbyRxBufferAddr,
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unsigned int *pcbHeaderSize,
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struct ethhdr *psEthHeader
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);
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static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
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u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
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u32 *pcbHeadSize);
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static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
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s32 iSANodeIndex);
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static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
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u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex);
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static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
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u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
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s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16);
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static int s_bHostWepRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
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u32 FrameSize, u8 *pbyRsr, int bOnFly, PSKeyItem pKey, u8 *pbyNewRsr,
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s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16);
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/*+
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*
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* Description:
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* Translate Rcv 802.11 header to 802.3 header with Rx buffer
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*
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* Parameters:
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* In:
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* pDevice
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* dwRxBufferAddr - Address of Rcv Buffer
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* cbPacketSize - Rcv Packet size
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* bIsWEP - If Rcv with WEP
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* Out:
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* pcbHeaderSize - 802.11 header size
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*
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* Return Value: None
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*
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-*/
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static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
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u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
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u32 *pcbHeadSize)
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{
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u8 *pbyRxBuffer;
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u32 cbHeaderSize = 0;
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u16 *pwType;
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struct ieee80211_hdr *pMACHeader;
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int ii;
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pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
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s_vGetDASA((u8 *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
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if (bIsWEP) {
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if (bExtIV) {
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// strip IV&ExtIV , add 8 byte
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cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
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} else {
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// strip IV , add 4 byte
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cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
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}
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}
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else {
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cbHeaderSize += WLAN_HDR_ADDR3_LEN;
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};
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pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
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if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
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cbHeaderSize += 6;
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} else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
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cbHeaderSize += 6;
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pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
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if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
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(*pwType == cpu_to_le16(0xF380))) {
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cbHeaderSize -= 8;
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pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
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if (bIsWEP) {
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if (bExtIV) {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
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} else {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
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}
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}
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else {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
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}
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}
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}
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else {
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cbHeaderSize -= 2;
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pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
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if (bIsWEP) {
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if (bExtIV) {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
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} else {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
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}
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}
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else {
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*pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
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}
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}
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cbHeaderSize -= (ETH_ALEN * 2);
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pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
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for (ii = 0; ii < ETH_ALEN; ii++)
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*pbyRxBuffer++ = pDevice->sRxEthHeader.h_dest[ii];
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for (ii = 0; ii < ETH_ALEN; ii++)
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*pbyRxBuffer++ = pDevice->sRxEthHeader.h_source[ii];
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*pcbHeadSize = cbHeaderSize;
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}
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static u8 s_byGetRateIdx(u8 byRate)
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{
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u8 byRateIdx;
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for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
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if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
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return byRateIdx;
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}
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return 0;
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}
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static
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void
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s_vGetDASA (
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u8 * pbyRxBufferAddr,
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unsigned int *pcbHeaderSize,
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struct ethhdr *psEthHeader
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)
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{
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unsigned int cbHeaderSize = 0;
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struct ieee80211_hdr *pMACHeader;
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int ii;
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pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
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if ((pMACHeader->frame_control & FC_TODS) == 0) {
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if (pMACHeader->frame_control & FC_FROMDS) {
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for (ii = 0; ii < ETH_ALEN; ii++) {
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psEthHeader->h_dest[ii] =
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pMACHeader->addr1[ii];
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psEthHeader->h_source[ii] =
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pMACHeader->addr3[ii];
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}
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} else {
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/* IBSS mode */
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for (ii = 0; ii < ETH_ALEN; ii++) {
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psEthHeader->h_dest[ii] =
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pMACHeader->addr1[ii];
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psEthHeader->h_source[ii] =
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pMACHeader->addr2[ii];
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}
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}
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} else {
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/* Is AP mode.. */
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if (pMACHeader->frame_control & FC_FROMDS) {
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for (ii = 0; ii < ETH_ALEN; ii++) {
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psEthHeader->h_dest[ii] =
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pMACHeader->addr3[ii];
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psEthHeader->h_source[ii] =
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pMACHeader->addr4[ii];
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cbHeaderSize += 6;
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}
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} else {
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for (ii = 0; ii < ETH_ALEN; ii++) {
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psEthHeader->h_dest[ii] =
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pMACHeader->addr3[ii];
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psEthHeader->h_source[ii] =
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pMACHeader->addr2[ii];
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}
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}
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};
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*pcbHeaderSize = cbHeaderSize;
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}
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int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
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unsigned long BytesToIndicate)
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{
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struct net_device_stats *pStats = &pDevice->stats;
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struct sk_buff *skb;
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struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
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struct vnt_rx_mgmt *pRxPacket = &pMgmt->sRxPacket;
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struct ieee80211_hdr *p802_11Header;
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u8 *pbyRsr, *pbyNewRsr, *pbyRSSI, *pbyFrame;
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u64 *pqwTSFTime;
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u32 bDeFragRx = false;
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u32 cbHeaderOffset, cbIVOffset;
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u32 FrameSize;
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u16 wEtherType = 0;
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s32 iSANodeIndex = -1, iDANodeIndex = -1;
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int ii;
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u8 *pbyRxSts, *pbyRxRate, *pbySQ, *pby3SQ;
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u32 cbHeaderSize;
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PSKeyItem pKey = NULL;
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u16 wRxTSC15_0 = 0;
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u32 dwRxTSC47_16 = 0;
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SKeyItem STempKey;
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/* signed long ldBm = 0; */
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int bIsWEP = false; int bExtIV = false;
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u32 dwWbkStatus;
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struct vnt_rcb *pRCBIndicate = pRCB;
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u8 *pbyDAddress;
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u16 *pwPLCP_Length;
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u8 abyVaildRate[MAX_RATE]
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= {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
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u16 wPLCPwithPadding;
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struct ieee80211_hdr *pMACHeader;
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int bRxeapol_key = false;
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- RXbBulkInProcessData---\n");
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skb = pRCB->skb;
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/* [31:16]RcvByteCount ( not include 4-byte Status ) */
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dwWbkStatus = *((u32 *)(skb->data));
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FrameSize = dwWbkStatus >> 16;
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FrameSize += 4;
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if (BytesToIndicate != FrameSize) {
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"------- WRONG Length 1\n");
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return false;
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}
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if ((BytesToIndicate > 2372) || (BytesToIndicate <= 40)) {
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// Frame Size error drop this packet.
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
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return false;
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}
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pbyDAddress = (u8 *)(skb->data);
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pbyRxSts = pbyDAddress+4;
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pbyRxRate = pbyDAddress+5;
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//real Frame Size = USBFrameSize -4WbkStatus - 4RxStatus - 8TSF - 4RSR - 4SQ3 - ?Padding
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//if SQ3 the range is 24~27, if no SQ3 the range is 20~23
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//real Frame size in PLCPLength field.
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pwPLCP_Length = (u16 *) (pbyDAddress + 6);
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//Fix hardware bug => PLCP_Length error
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if ( ((BytesToIndicate - (*pwPLCP_Length)) > 27) ||
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((BytesToIndicate - (*pwPLCP_Length)) < 24) ||
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(BytesToIndicate < (*pwPLCP_Length)) ) {
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong PLCP Length %x\n", (int) *pwPLCP_Length);
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return false;
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}
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for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
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if ( *pbyRxRate == abyVaildRate[ii] ) {
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break;
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}
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}
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if ( ii==MAX_RATE ) {
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong RxRate %x\n",(int) *pbyRxRate);
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return false;
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}
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wPLCPwithPadding = ( (*pwPLCP_Length / 4) + ( (*pwPLCP_Length % 4) ? 1:0 ) ) *4;
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pqwTSFTime = (u64 *)(pbyDAddress + 8 + wPLCPwithPadding);
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if(pDevice->byBBType == BB_TYPE_11G) {
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pby3SQ = pbyDAddress + 8 + wPLCPwithPadding + 12;
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pbySQ = pby3SQ;
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}
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else {
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pbySQ = pbyDAddress + 8 + wPLCPwithPadding + 8;
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pby3SQ = pbySQ;
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}
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pbyNewRsr = pbyDAddress + 8 + wPLCPwithPadding + 9;
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pbyRSSI = pbyDAddress + 8 + wPLCPwithPadding + 10;
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pbyRsr = pbyDAddress + 8 + wPLCPwithPadding + 11;
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FrameSize = *pwPLCP_Length;
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pbyFrame = pbyDAddress + 8;
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// update receive statistic counter
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STAvUpdateRDStatCounter(&pDevice->scStatistic,
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*pbyRsr,
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*pbyNewRsr,
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*pbyRxSts,
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*pbyRxRate,
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pbyFrame,
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FrameSize
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);
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pMACHeader = (struct ieee80211_hdr *) pbyFrame;
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//mike add: to judge if current AP is activated?
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if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
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(pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
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if (pMgmt->sNodeDBTable[0].bActive) {
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if (ether_addr_equal(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
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if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
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pMgmt->sNodeDBTable[0].uInActiveCount = 0;
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}
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}
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}
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if (!is_multicast_ether_addr(pMACHeader->addr1)) {
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if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (struct ieee80211_hdr *) pbyFrame)) {
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pDevice->s802_11Counter.FrameDuplicateCount++;
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return false;
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}
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if (!ether_addr_equal(pDevice->abyCurrentNetAddr, pMACHeader->addr1)) {
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return false;
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}
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}
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// Use for TKIP MIC
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s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
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if (ether_addr_equal((u8 *)pDevice->sRxEthHeader.h_source,
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pDevice->abyCurrentNetAddr))
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return false;
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if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
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if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
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p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
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// get SA NodeIndex
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if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(p802_11Header->addr2), &iSANodeIndex)) {
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pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
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pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
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}
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}
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}
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if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
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if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
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return false;
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}
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}
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if (IS_FC_WEP(pbyFrame)) {
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bool bRxDecryOK = false;
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
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bIsWEP = true;
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if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
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pKey = &STempKey;
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pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
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pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
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pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
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pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
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pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
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memcpy(pKey->abyKey,
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&pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
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pKey->uKeyLength
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);
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bRxDecryOK = s_bHostWepRxEncryption(pDevice,
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pbyFrame,
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FrameSize,
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pbyRsr,
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pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
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pKey,
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pbyNewRsr,
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&bExtIV,
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&wRxTSC15_0,
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&dwRxTSC47_16);
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} else {
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bRxDecryOK = s_bHandleRxEncryption(pDevice,
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pbyFrame,
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FrameSize,
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pbyRsr,
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pbyNewRsr,
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&pKey,
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&bExtIV,
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&wRxTSC15_0,
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&dwRxTSC47_16);
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}
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if (bRxDecryOK) {
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if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
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DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
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if ( (pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
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(pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
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(pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
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(pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
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(pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
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if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
|
|
pDevice->s802_11Counter.TKIPICVErrors++;
|
|
} else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
|
|
pDevice->s802_11Counter.CCMPDecryptErrors++;
|
|
} else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
|
|
// pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
} else {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
|
|
return false;
|
|
}
|
|
if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
|
|
FrameSize -= 8; // Message Integrity Code
|
|
else
|
|
FrameSize -= 4; // 4 is ICV
|
|
}
|
|
|
|
//
|
|
// RX OK
|
|
//
|
|
/* remove the FCS/CRC length */
|
|
FrameSize -= ETH_FCS_LEN;
|
|
|
|
if ( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) && // unicast address
|
|
(IS_FRAGMENT_PKT((pbyFrame)))
|
|
) {
|
|
// defragment
|
|
bDeFragRx = WCTLbHandleFragment(pDevice, (struct ieee80211_hdr *) (pbyFrame), FrameSize, bIsWEP, bExtIV);
|
|
pDevice->s802_11Counter.ReceivedFragmentCount++;
|
|
if (bDeFragRx) {
|
|
// defrag complete
|
|
// TODO skb, pbyFrame
|
|
skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
|
|
FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
|
|
pbyFrame = skb->data + 8;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Management & Control frame Handle
|
|
//
|
|
if ((IS_TYPE_DATA((pbyFrame))) == false) {
|
|
// Handle Control & Manage Frame
|
|
|
|
if (IS_TYPE_MGMT((pbyFrame))) {
|
|
u8 * pbyData1;
|
|
u8 * pbyData2;
|
|
|
|
pRxPacket = &(pRCB->sMngPacket);
|
|
pRxPacket->p80211Header = (PUWLAN_80211HDR)(pbyFrame);
|
|
pRxPacket->cbMPDULen = FrameSize;
|
|
pRxPacket->uRSSI = *pbyRSSI;
|
|
pRxPacket->bySQ = *pbySQ;
|
|
pRxPacket->qwLocalTSF = cpu_to_le64(*pqwTSFTime);
|
|
if (bIsWEP) {
|
|
// strip IV
|
|
pbyData1 = WLAN_HDR_A3_DATA_PTR(pbyFrame);
|
|
pbyData2 = WLAN_HDR_A3_DATA_PTR(pbyFrame) + 4;
|
|
for (ii = 0; ii < (FrameSize - 4); ii++) {
|
|
*pbyData1 = *pbyData2;
|
|
pbyData1++;
|
|
pbyData2++;
|
|
}
|
|
}
|
|
|
|
pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
|
|
|
|
if ( *pbyRxSts == 0 ) {
|
|
//Discard beacon packet which channel is 0
|
|
if ( (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_BEACON) ||
|
|
(WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_PROBERESP) ) {
|
|
return false;
|
|
}
|
|
}
|
|
pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
|
|
|
|
// hostap Deamon handle 802.11 management
|
|
if (pDevice->bEnableHostapd) {
|
|
skb->dev = pDevice->apdev;
|
|
//skb->data += 4;
|
|
//skb->tail += 4;
|
|
skb->data += 8;
|
|
skb->tail += 8;
|
|
skb_put(skb, FrameSize);
|
|
skb_reset_mac_header(skb);
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
|
skb->protocol = htons(ETH_P_802_2);
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
netif_rx(skb);
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// Insert the RCB in the Recv Mng list
|
|
//
|
|
EnqueueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList, pRCBIndicate);
|
|
pDevice->NumRecvMngList++;
|
|
if ( bDeFragRx == false) {
|
|
pRCB->Ref++;
|
|
}
|
|
if (pDevice->bIsRxMngWorkItemQueued == false) {
|
|
pDevice->bIsRxMngWorkItemQueued = true;
|
|
schedule_work(&pDevice->rx_mng_work_item);
|
|
}
|
|
|
|
}
|
|
else {
|
|
// Control Frame
|
|
};
|
|
return false;
|
|
}
|
|
else {
|
|
if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
|
|
//In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
|
|
if ( !(*pbyRsr & RSR_BSSIDOK)) {
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
// discard DATA packet while not associate || BSSID error
|
|
if ((pDevice->bLinkPass == false) ||
|
|
!(*pbyRsr & RSR_BSSIDOK)) {
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
//mike add:station mode check eapol-key challenge--->
|
|
{
|
|
u8 Protocol_Version; //802.1x Authentication
|
|
u8 Packet_Type; //802.1x Authentication
|
|
u8 Descriptor_type;
|
|
u16 Key_info;
|
|
if (bIsWEP)
|
|
cbIVOffset = 8;
|
|
else
|
|
cbIVOffset = 0;
|
|
wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
|
|
skb->data[cbIVOffset + 8 + 24 + 6 + 1];
|
|
Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
|
|
Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
|
|
if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
|
|
if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
|
|
(Packet_Type==3)) { //802.1x OR eapol-key challenge frame receive
|
|
bRxeapol_key = true;
|
|
Descriptor_type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2];
|
|
Key_info = (skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+1]<<8) |skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+2] ;
|
|
if(Descriptor_type==2) { //RSN
|
|
// printk("WPA2_Rx_eapol-key_info<-----:%x\n",Key_info);
|
|
}
|
|
else if(Descriptor_type==254) {
|
|
// printk("WPA_Rx_eapol-key_info<-----:%x\n",Key_info);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//mike add:station mode check eapol-key challenge<---
|
|
}
|
|
}
|
|
|
|
// Data frame Handle
|
|
|
|
if (pDevice->bEnablePSMode) {
|
|
if (IS_FC_MOREDATA((pbyFrame))) {
|
|
if (*pbyRsr & RSR_ADDROK) {
|
|
//PSbSendPSPOLL((PSDevice)pDevice);
|
|
}
|
|
}
|
|
else {
|
|
if (pMgmt->bInTIMWake == true) {
|
|
pMgmt->bInTIMWake = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
|
|
if (pDevice->bDiversityEnable && (FrameSize>50) &&
|
|
(pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
|
|
(pDevice->bLinkPass == true)) {
|
|
BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
|
|
}
|
|
|
|
// ++++++++ For BaseBand Algorithm +++++++++++++++
|
|
pDevice->uCurrRSSI = *pbyRSSI;
|
|
pDevice->byCurrSQ = *pbySQ;
|
|
|
|
// todo
|
|
/*
|
|
if ((*pbyRSSI != 0) &&
|
|
(pMgmt->pCurrBSS!=NULL)) {
|
|
RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
|
|
// Monitor if RSSI is too strong.
|
|
pMgmt->pCurrBSS->byRSSIStatCnt++;
|
|
pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
|
|
pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
|
|
for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
|
|
if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
|
|
pMgmt->pCurrBSS->ldBmMAX =
|
|
max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
|
|
// -----------------------------------------------
|
|
|
|
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
|
|
u8 abyMacHdr[24];
|
|
|
|
// Only 802.1x packet incoming allowed
|
|
if (bIsWEP)
|
|
cbIVOffset = 8;
|
|
else
|
|
cbIVOffset = 0;
|
|
wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
|
|
skb->data[cbIVOffset + 8 + 24 + 6 + 1];
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
|
|
if (wEtherType == ETH_P_PAE) {
|
|
skb->dev = pDevice->apdev;
|
|
|
|
if (bIsWEP == true) {
|
|
// strip IV header(8)
|
|
memcpy(&abyMacHdr[0], (skb->data + 8), 24);
|
|
memcpy((skb->data + 8 + cbIVOffset), &abyMacHdr[0], 24);
|
|
}
|
|
|
|
skb->data += (cbIVOffset + 8);
|
|
skb->tail += (cbIVOffset + 8);
|
|
skb_put(skb, FrameSize);
|
|
skb_reset_mac_header(skb);
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
|
skb->protocol = htons(ETH_P_802_2);
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
netif_rx(skb);
|
|
return true;
|
|
|
|
}
|
|
// check if 802.1x authorized
|
|
if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
|
|
return false;
|
|
}
|
|
|
|
if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
|
|
if (bIsWEP) {
|
|
FrameSize -= 8; //MIC
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// Soft MIC
|
|
if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
|
|
if (bIsWEP) {
|
|
u32 * pdwMIC_L;
|
|
u32 * pdwMIC_R;
|
|
u32 dwMIC_Priority;
|
|
u32 dwMICKey0 = 0, dwMICKey1 = 0;
|
|
u32 dwLocalMIC_L = 0;
|
|
u32 dwLocalMIC_R = 0;
|
|
|
|
if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
|
|
dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
|
|
dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
|
|
}
|
|
else {
|
|
if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
|
|
dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
|
|
dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
|
|
} else if ((pKey->dwKeyIndex & BIT28) == 0) {
|
|
dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
|
|
dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
|
|
} else {
|
|
dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
|
|
dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
|
|
}
|
|
}
|
|
|
|
MIC_vInit(dwMICKey0, dwMICKey1);
|
|
MIC_vAppend((u8 *)&(pDevice->sRxEthHeader.h_dest[0]), 12);
|
|
dwMIC_Priority = 0;
|
|
MIC_vAppend((u8 *)&dwMIC_Priority, 4);
|
|
// 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
|
|
MIC_vAppend((u8 *)(skb->data + 8 + WLAN_HDR_ADDR3_LEN + 8),
|
|
FrameSize - WLAN_HDR_ADDR3_LEN - 8);
|
|
MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
|
|
MIC_vUnInit();
|
|
|
|
pdwMIC_L = (u32 *)(skb->data + 8 + FrameSize);
|
|
pdwMIC_R = (u32 *)(skb->data + 8 + FrameSize + 4);
|
|
|
|
if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
|
|
(pDevice->bRxMICFail == true)) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
|
|
pDevice->bRxMICFail = false;
|
|
//pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
|
|
pDevice->s802_11Counter.TKIPLocalMICFailures++;
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
}
|
|
//send event to wpa_supplicant
|
|
//if(pDevice->bWPASuppWextEnabled == true)
|
|
{
|
|
union iwreq_data wrqu;
|
|
struct iw_michaelmicfailure ev;
|
|
int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
|
|
memset(&ev, 0, sizeof(ev));
|
|
ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
|
|
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
|
|
(pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
|
|
(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
|
|
ev.flags |= IW_MICFAILURE_PAIRWISE;
|
|
} else {
|
|
ev.flags |= IW_MICFAILURE_GROUP;
|
|
}
|
|
|
|
ev.src_addr.sa_family = ARPHRD_ETHER;
|
|
memcpy(ev.src_addr.sa_data, pMACHeader->addr2, ETH_ALEN);
|
|
memset(&wrqu, 0, sizeof(wrqu));
|
|
wrqu.data.length = sizeof(ev);
|
|
PRINT_K("wireless_send_event--->IWEVMICHAELMICFAILURE\n");
|
|
wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
}
|
|
} //---end of SOFT MIC-----------------------------------------------------------------------
|
|
|
|
// ++++++++++ Reply Counter Check +++++++++++++
|
|
|
|
if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
|
|
(pKey->byCipherSuite == KEY_CTL_CCMP))) {
|
|
if (bIsWEP) {
|
|
u16 wLocalTSC15_0 = 0;
|
|
u32 dwLocalTSC47_16 = 0;
|
|
unsigned long long RSC = 0;
|
|
// endian issues
|
|
RSC = *((unsigned long long *) &(pKey->KeyRSC));
|
|
wLocalTSC15_0 = (u16) RSC;
|
|
dwLocalTSC47_16 = (u32) (RSC>>16);
|
|
|
|
RSC = dwRxTSC47_16;
|
|
RSC <<= 16;
|
|
RSC += wRxTSC15_0;
|
|
memcpy(&(pKey->KeyRSC), &RSC, sizeof(u64));
|
|
|
|
if (pDevice->vnt_mgmt.eCurrMode == WMAC_MODE_ESS_STA &&
|
|
pDevice->vnt_mgmt.eCurrState == WMAC_STATE_ASSOC) {
|
|
/* check RSC */
|
|
if ( (wRxTSC15_0 < wLocalTSC15_0) &&
|
|
(dwRxTSC47_16 <= dwLocalTSC47_16) &&
|
|
!((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
|
|
if (pKey->byCipherSuite == KEY_CTL_TKIP)
|
|
//pDevice->s802_11Counter.TKIPReplays.QuadPart++;
|
|
pDevice->s802_11Counter.TKIPReplays++;
|
|
else
|
|
//pDevice->s802_11Counter.CCMPReplays.QuadPart++;
|
|
pDevice->s802_11Counter.CCMPReplays++;
|
|
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
} // ----- End of Reply Counter Check --------------------------
|
|
|
|
s_vProcessRxMACHeader(pDevice, (u8 *)(skb->data+8), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
|
|
FrameSize -= cbHeaderOffset;
|
|
cbHeaderOffset += 8; // 8 is Rcv buffer header
|
|
|
|
// Null data, framesize = 12
|
|
if (FrameSize < 12)
|
|
return false;
|
|
|
|
if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
|
|
if (s_bAPModeRxData(pDevice,
|
|
skb,
|
|
FrameSize,
|
|
cbHeaderOffset,
|
|
iSANodeIndex,
|
|
iDANodeIndex
|
|
) == false) {
|
|
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
skb->data += cbHeaderOffset;
|
|
skb->tail += cbHeaderOffset;
|
|
skb_put(skb, FrameSize);
|
|
skb->protocol=eth_type_trans(skb, skb->dev);
|
|
skb->ip_summed=CHECKSUM_NONE;
|
|
pStats->rx_bytes +=skb->len;
|
|
pStats->rx_packets++;
|
|
netif_rx(skb);
|
|
if (bDeFragRx) {
|
|
if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
|
|
pDevice->dev->name);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
|
|
s32 iSANodeIndex)
|
|
{
|
|
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
|
|
struct ieee80211_hdr *p802_11Header;
|
|
CMD_STATUS Status;
|
|
|
|
if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
|
|
|
|
p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
|
|
if (!IS_TYPE_MGMT(pbyFrame)) {
|
|
|
|
// Data & PS-Poll packet
|
|
// check frame class
|
|
if (iSANodeIndex > 0) {
|
|
// frame class 3 fliter & checking
|
|
if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
|
|
// send deauth notification
|
|
// reason = (6) class 2 received from nonauth sta
|
|
vMgrDeAuthenBeginSta(pDevice,
|
|
pMgmt,
|
|
(u8 *)(p802_11Header->addr2),
|
|
(WLAN_MGMT_REASON_CLASS2_NONAUTH),
|
|
&Status
|
|
);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
|
|
return true;
|
|
}
|
|
if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
|
|
// send deassoc notification
|
|
// reason = (7) class 3 received from nonassoc sta
|
|
vMgrDisassocBeginSta(pDevice,
|
|
pMgmt,
|
|
(u8 *)(p802_11Header->addr2),
|
|
(WLAN_MGMT_REASON_CLASS3_NONASSOC),
|
|
&Status
|
|
);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
|
|
return true;
|
|
}
|
|
|
|
if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
|
|
// delcare received ps-poll event
|
|
if (IS_CTL_PSPOLL(pbyFrame)) {
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
|
|
bScheduleCommand((void *) pDevice,
|
|
WLAN_CMD_RX_PSPOLL,
|
|
NULL);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
|
|
}
|
|
else {
|
|
// check Data PS state
|
|
// if PW bit off, send out all PS bufferring packets.
|
|
if (!IS_FC_POWERMGT(pbyFrame)) {
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
|
|
bScheduleCommand((void *) pDevice,
|
|
WLAN_CMD_RX_PSPOLL,
|
|
NULL);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (IS_FC_POWERMGT(pbyFrame)) {
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
|
|
// Once if STA in PS state, enable multicast bufferring
|
|
pMgmt->sNodeDBTable[0].bPSEnable = true;
|
|
}
|
|
else {
|
|
// clear all pending PS frame.
|
|
if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
|
|
pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
|
|
bScheduleCommand((void *) pDevice,
|
|
WLAN_CMD_RX_PSPOLL,
|
|
NULL);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
vMgrDeAuthenBeginSta(pDevice,
|
|
pMgmt,
|
|
(u8 *)(p802_11Header->addr2),
|
|
(WLAN_MGMT_REASON_CLASS2_NONAUTH),
|
|
&Status
|
|
);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
|
|
p802_11Header->addr3);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
|
|
p802_11Header->addr2);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
|
|
p802_11Header->addr1);
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: frame_control= %x\n", p802_11Header->frame_control);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
|
|
}
|
|
|
|
static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
|
|
u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
|
|
s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16)
|
|
{
|
|
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
|
|
u32 PayloadLen = FrameSize;
|
|
u8 *pbyIV;
|
|
u8 byKeyIdx;
|
|
PSKeyItem pKey = NULL;
|
|
u8 byDecMode = KEY_CTL_WEP;
|
|
|
|
*pwRxTSC15_0 = 0;
|
|
*pdwRxTSC47_16 = 0;
|
|
|
|
pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
|
|
if ( WLAN_GET_FC_TODS(*(u16 *)pbyFrame) &&
|
|
WLAN_GET_FC_FROMDS(*(u16 *)pbyFrame) ) {
|
|
pbyIV += 6; // 6 is 802.11 address4
|
|
PayloadLen -= 6;
|
|
}
|
|
byKeyIdx = (*(pbyIV+3) & 0xc0);
|
|
byKeyIdx >>= 6;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
|
|
|
|
if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
|
|
(pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
|
|
(pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
|
|
(pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
|
|
(pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
|
|
if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
|
|
(pMgmt->byCSSPK != KEY_CTL_NONE)) {
|
|
// unicast pkt use pairwise key
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
|
|
if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
|
|
if (pMgmt->byCSSPK == KEY_CTL_TKIP)
|
|
byDecMode = KEY_CTL_TKIP;
|
|
else if (pMgmt->byCSSPK == KEY_CTL_CCMP)
|
|
byDecMode = KEY_CTL_CCMP;
|
|
}
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
|
|
} else {
|
|
// use group key
|
|
KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
|
|
if (pMgmt->byCSSGK == KEY_CTL_TKIP)
|
|
byDecMode = KEY_CTL_TKIP;
|
|
else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
|
|
byDecMode = KEY_CTL_CCMP;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
|
|
}
|
|
}
|
|
// our WEP only support Default Key
|
|
if (pKey == NULL) {
|
|
// use default group key
|
|
KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
|
|
if (pMgmt->byCSSGK == KEY_CTL_TKIP)
|
|
byDecMode = KEY_CTL_TKIP;
|
|
else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
|
|
byDecMode = KEY_CTL_CCMP;
|
|
}
|
|
*pKeyOut = pKey;
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
|
|
|
|
if (pKey == NULL) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
|
|
if (byDecMode == KEY_CTL_WEP) {
|
|
// pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
|
|
} else if (pDevice->bLinkPass == true) {
|
|
// pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
|
|
}
|
|
return false;
|
|
}
|
|
if (byDecMode != pKey->byCipherSuite) {
|
|
if (byDecMode == KEY_CTL_WEP) {
|
|
// pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
|
|
} else if (pDevice->bLinkPass == true) {
|
|
// pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
|
|
}
|
|
*pKeyOut = NULL;
|
|
return false;
|
|
}
|
|
if (byDecMode == KEY_CTL_WEP) {
|
|
// handle WEP
|
|
if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
|
|
(((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
|
|
// Software WEP
|
|
// 1. 3253A
|
|
// 2. WEP 256
|
|
|
|
PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
|
|
memcpy(pDevice->abyPRNG, pbyIV, 3);
|
|
memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
|
|
rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
|
|
rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
|
|
|
|
if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
|
|
*pbyNewRsr |= NEWRSR_DECRYPTOK;
|
|
}
|
|
}
|
|
} else if ((byDecMode == KEY_CTL_TKIP) ||
|
|
(byDecMode == KEY_CTL_CCMP)) {
|
|
// TKIP/AES
|
|
|
|
PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
|
|
*pdwRxTSC47_16 = cpu_to_le32(*(u32 *)(pbyIV + 4));
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
|
|
if (byDecMode == KEY_CTL_TKIP) {
|
|
*pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
|
|
} else {
|
|
*pwRxTSC15_0 = cpu_to_le16(*(u16 *)pbyIV);
|
|
}
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
|
|
|
|
if ((byDecMode == KEY_CTL_TKIP) &&
|
|
(pDevice->byLocalID <= REV_ID_VT3253_A1)) {
|
|
// Software TKIP
|
|
// 1. 3253 A
|
|
struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *) (pbyFrame);
|
|
TKIPvMixKey(pKey->abyKey, pMACHeader->addr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
|
|
rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
|
|
rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
|
|
if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
|
|
*pbyNewRsr |= NEWRSR_DECRYPTOK;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
|
|
} else {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
|
|
}
|
|
}
|
|
}// end of TKIP/AES
|
|
|
|
if ((*(pbyIV+3) & 0x20) != 0)
|
|
*pbExtIV = true;
|
|
return true;
|
|
}
|
|
|
|
static int s_bHostWepRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
|
|
u32 FrameSize, u8 *pbyRsr, int bOnFly, PSKeyItem pKey, u8 *pbyNewRsr,
|
|
s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16)
|
|
{
|
|
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
|
|
struct ieee80211_hdr *pMACHeader;
|
|
u32 PayloadLen = FrameSize;
|
|
u8 *pbyIV;
|
|
u8 byKeyIdx;
|
|
u8 byDecMode = KEY_CTL_WEP;
|
|
|
|
*pwRxTSC15_0 = 0;
|
|
*pdwRxTSC47_16 = 0;
|
|
|
|
pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
|
|
if ( WLAN_GET_FC_TODS(*(u16 *)pbyFrame) &&
|
|
WLAN_GET_FC_FROMDS(*(u16 *)pbyFrame) ) {
|
|
pbyIV += 6; // 6 is 802.11 address4
|
|
PayloadLen -= 6;
|
|
}
|
|
byKeyIdx = (*(pbyIV+3) & 0xc0);
|
|
byKeyIdx >>= 6;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
|
|
|
|
if (pMgmt->byCSSGK == KEY_CTL_TKIP)
|
|
byDecMode = KEY_CTL_TKIP;
|
|
else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
|
|
byDecMode = KEY_CTL_CCMP;
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
|
|
|
|
if (byDecMode != pKey->byCipherSuite) {
|
|
if (byDecMode == KEY_CTL_WEP) {
|
|
// pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
|
|
} else if (pDevice->bLinkPass == true) {
|
|
// pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (byDecMode == KEY_CTL_WEP) {
|
|
// handle WEP
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP\n");
|
|
if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
|
|
(((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
|
|
(bOnFly == false)) {
|
|
// Software WEP
|
|
// 1. 3253A
|
|
// 2. WEP 256
|
|
// 3. NotOnFly
|
|
|
|
PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
|
|
memcpy(pDevice->abyPRNG, pbyIV, 3);
|
|
memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
|
|
rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
|
|
rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
|
|
|
|
if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
|
|
*pbyNewRsr |= NEWRSR_DECRYPTOK;
|
|
}
|
|
}
|
|
} else if ((byDecMode == KEY_CTL_TKIP) ||
|
|
(byDecMode == KEY_CTL_CCMP)) {
|
|
// TKIP/AES
|
|
|
|
PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
|
|
*pdwRxTSC47_16 = cpu_to_le32(*(u32 *)(pbyIV + 4));
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
|
|
|
|
if (byDecMode == KEY_CTL_TKIP) {
|
|
*pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
|
|
} else {
|
|
*pwRxTSC15_0 = cpu_to_le16(*(u16 *)pbyIV);
|
|
}
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
|
|
|
|
if (byDecMode == KEY_CTL_TKIP) {
|
|
|
|
if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
|
|
// Software TKIP
|
|
// 1. 3253 A
|
|
// 2. NotOnFly
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
|
|
pMACHeader = (struct ieee80211_hdr *) (pbyFrame);
|
|
TKIPvMixKey(pKey->abyKey, pMACHeader->addr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
|
|
rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
|
|
rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
|
|
if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
|
|
*pbyNewRsr |= NEWRSR_DECRYPTOK;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
|
|
} else {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (byDecMode == KEY_CTL_CCMP) {
|
|
if (bOnFly == false) {
|
|
// Software CCMP
|
|
// NotOnFly
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
|
|
if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
|
|
*pbyNewRsr |= NEWRSR_DECRYPTOK;
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
|
|
} else {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
}// end of TKIP/AES
|
|
|
|
if ((*(pbyIV+3) & 0x20) != 0)
|
|
*pbExtIV = true;
|
|
return true;
|
|
}
|
|
|
|
static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
|
|
u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex)
|
|
{
|
|
struct sk_buff *skbcpy;
|
|
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
|
|
int bRelayAndForward = false;
|
|
int bRelayOnly = false;
|
|
u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
|
|
u16 wAID;
|
|
|
|
if (FrameSize > CB_MAX_BUF_SIZE)
|
|
return false;
|
|
// check DA
|
|
if (is_multicast_ether_addr((u8 *)(skb->data+cbHeaderOffset))) {
|
|
if (pMgmt->sNodeDBTable[0].bPSEnable) {
|
|
|
|
skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
|
|
|
|
// if any node in PS mode, buffer packet until DTIM.
|
|
if (skbcpy == NULL) {
|
|
DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
|
|
}
|
|
else {
|
|
skbcpy->dev = pDevice->dev;
|
|
skbcpy->len = FrameSize;
|
|
memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
|
|
skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
|
|
pMgmt->sNodeDBTable[0].wEnQueueCnt++;
|
|
// set tx map
|
|
pMgmt->abyPSTxMap[0] |= byMask[0];
|
|
}
|
|
}
|
|
else {
|
|
bRelayAndForward = true;
|
|
}
|
|
}
|
|
else {
|
|
// check if relay
|
|
if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
|
|
if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
|
|
if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
|
|
// queue this skb until next PS tx, and then release.
|
|
|
|
skb->data += cbHeaderOffset;
|
|
skb->tail += cbHeaderOffset;
|
|
skb_put(skb, FrameSize);
|
|
skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
|
|
|
|
pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
|
|
wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
|
|
pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
|
|
iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
|
|
return true;
|
|
}
|
|
else {
|
|
bRelayOnly = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bRelayOnly || bRelayAndForward) {
|
|
// relay this packet right now
|
|
if (bRelayAndForward)
|
|
iDANodeIndex = 0;
|
|
|
|
if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
|
|
bRelayPacketSend(pDevice, (u8 *) (skb->data + cbHeaderOffset),
|
|
FrameSize, (unsigned int) iDANodeIndex);
|
|
}
|
|
|
|
if (bRelayOnly)
|
|
return false;
|
|
}
|
|
// none associate, don't forward
|
|
if (pDevice->uAssocCount == 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void RXvWorkItem(struct work_struct *work)
|
|
{
|
|
struct vnt_private *pDevice =
|
|
container_of(work, struct vnt_private, read_work_item);
|
|
int ntStatus;
|
|
struct vnt_rcb *pRCB = NULL;
|
|
|
|
if (pDevice->Flags & fMP_DISCONNECTED)
|
|
return;
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Polling Thread\n");
|
|
spin_lock_irq(&pDevice->lock);
|
|
|
|
while ((pDevice->Flags & fMP_POST_READS) &&
|
|
MP_IS_READY(pDevice) &&
|
|
(pDevice->NumRecvFreeList != 0) ) {
|
|
pRCB = pDevice->FirstRecvFreeList;
|
|
pDevice->NumRecvFreeList--;
|
|
DequeueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList);
|
|
ntStatus = PIPEnsBulkInUsbRead(pDevice, pRCB);
|
|
}
|
|
pDevice->bIsRxWorkItemQueued = false;
|
|
spin_unlock_irq(&pDevice->lock);
|
|
|
|
}
|
|
|
|
void RXvFreeRCB(struct vnt_rcb *pRCB, int bReAllocSkb)
|
|
{
|
|
struct vnt_private *pDevice = pRCB->pDevice;
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->RXvFreeRCB\n");
|
|
|
|
if (bReAllocSkb == false) {
|
|
kfree_skb(pRCB->skb);
|
|
bReAllocSkb = true;
|
|
}
|
|
|
|
if (bReAllocSkb == true) {
|
|
pRCB->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
|
|
// todo error handling
|
|
if (pRCB->skb == NULL) {
|
|
DBG_PRT(MSG_LEVEL_ERR,KERN_ERR" Failed to re-alloc rx skb\n");
|
|
}else {
|
|
pRCB->skb->dev = pDevice->dev;
|
|
}
|
|
}
|
|
//
|
|
// Insert the RCB back in the Recv free list
|
|
//
|
|
EnqueueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList, pRCB);
|
|
pDevice->NumRecvFreeList++;
|
|
|
|
if ((pDevice->Flags & fMP_POST_READS) && MP_IS_READY(pDevice) &&
|
|
(pDevice->bIsRxWorkItemQueued == false) ) {
|
|
|
|
pDevice->bIsRxWorkItemQueued = true;
|
|
schedule_work(&pDevice->read_work_item);
|
|
}
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
|
|
}
|
|
|
|
void RXvMngWorkItem(struct work_struct *work)
|
|
{
|
|
struct vnt_private *pDevice =
|
|
container_of(work, struct vnt_private, rx_mng_work_item);
|
|
struct vnt_rcb *pRCB = NULL;
|
|
struct vnt_rx_mgmt *pRxPacket;
|
|
int bReAllocSkb = false;
|
|
|
|
if (pDevice->Flags & fMP_DISCONNECTED)
|
|
return;
|
|
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Mng Thread\n");
|
|
|
|
spin_lock_irq(&pDevice->lock);
|
|
while (pDevice->NumRecvMngList!=0)
|
|
{
|
|
pRCB = pDevice->FirstRecvMngList;
|
|
pDevice->NumRecvMngList--;
|
|
DequeueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList);
|
|
if(!pRCB){
|
|
break;
|
|
}
|
|
pRxPacket = &(pRCB->sMngPacket);
|
|
vMgrRxManagePacket(pDevice, &pDevice->vnt_mgmt, pRxPacket);
|
|
pRCB->Ref--;
|
|
if(pRCB->Ref == 0) {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeMng %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
|
|
RXvFreeRCB(pRCB, bReAllocSkb);
|
|
} else {
|
|
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rx Mng Only we have the right to free RCB\n");
|
|
}
|
|
}
|
|
|
|
pDevice->bIsRxMngWorkItemQueued = false;
|
|
spin_unlock_irq(&pDevice->lock);
|
|
|
|
}
|
|
|