int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
unsigned long BytesToIndicate)
{
struct net_device_stats *pStats = &pDevice->stats;
struct sk_buff *skb;
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
struct vnt_rx_mgmt *pRxPacket = &pMgmt->sRxPacket;
struct ieee80211_hdr *p802_11Header;
u8 *pbyRsr, *pbyNewRsr, *pbyRSSI, *pbyFrame;
u64 *pqwTSFTime;
u32 bDeFragRx = false;
u32 cbHeaderOffset, cbIVOffset;
u32 FrameSize;
u16 wEtherType = 0;
s32 iSANodeIndex = -1;
int ii;
u8 *pbyRxSts, *pbyRxRate, *pbySQ, *pby3SQ;
u32 cbHeaderSize;
PSKeyItem pKey = NULL;
u16 wRxTSC15_0 = 0;
u32 dwRxTSC47_16 = 0;
/* signed long ldBm = 0; */
int bIsWEP = false; int bExtIV = false;
u32 dwWbkStatus;
struct vnt_rcb *pRCBIndicate = pRCB;
u8 *pbyDAddress;
u16 *pwPLCP_Length;
u8 abyVaildRate[MAX_RATE]
= {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
u16 wPLCPwithPadding;
struct ieee80211_hdr *pMACHeader;
int bRxeapol_key = false;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- RXbBulkInProcessData---\n");
skb = pRCB->skb;
/* [31:16]RcvByteCount ( not include 4-byte Status ) */
dwWbkStatus = *((u32 *)(skb->data));
FrameSize = dwWbkStatus >> 16;
FrameSize += 4;
if (BytesToIndicate != FrameSize) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"------- WRONG Length 1\n");
pStats->rx_frame_errors++;
return false;
}
if ((BytesToIndicate > 2372) || (BytesToIndicate <= 40)) {
// Frame Size error drop this packet.
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
pStats->rx_frame_errors++;
return false;
}
pbyDAddress = (u8 *)(skb->data);
pbyRxSts = pbyDAddress+4;
pbyRxRate = pbyDAddress+5;
//real Frame Size = USBFrameSize -4WbkStatus - 4RxStatus - 8TSF - 4RSR - 4SQ3 - ?Padding
//if SQ3 the range is 24~27, if no SQ3 the range is 20~23
//real Frame size in PLCPLength field.
pwPLCP_Length = (u16 *) (pbyDAddress + 6);
//Fix hardware bug => PLCP_Length error
if ( ((BytesToIndicate - (*pwPLCP_Length)) > 27) ||
((BytesToIndicate - (*pwPLCP_Length)) < 24) ||
(BytesToIndicate < (*pwPLCP_Length)) ) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong PLCP Length %x\n", (int) *pwPLCP_Length);
pStats->rx_frame_errors++;
return false;
}
for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
if ( *pbyRxRate == abyVaildRate[ii] ) {
break;
}
}
if ( ii==MAX_RATE ) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong RxRate %x\n",(int) *pbyRxRate);
return false;
}
wPLCPwithPadding = ( (*pwPLCP_Length / 4) + ( (*pwPLCP_Length % 4) ? 1:0 ) ) *4;
pqwTSFTime = (u64 *)(pbyDAddress + 8 + wPLCPwithPadding);
if(pDevice->byBBType == BB_TYPE_11G) {
pby3SQ = pbyDAddress + 8 + wPLCPwithPadding + 12;
pbySQ = pby3SQ;
}
else {
pbySQ = pbyDAddress + 8 + wPLCPwithPadding + 8;
pby3SQ = pbySQ;
}
pbyNewRsr = pbyDAddress + 8 + wPLCPwithPadding + 9;
pbyRSSI = pbyDAddress + 8 + wPLCPwithPadding + 10;
pbyRsr = pbyDAddress + 8 + wPLCPwithPadding + 11;
FrameSize = *pwPLCP_Length;
pbyFrame = pbyDAddress + 8;
pMACHeader = (struct ieee80211_hdr *) pbyFrame;
//mike add: to judge if current AP is activated?
if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
(pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
if (pMgmt->sNodeDBTable[0].bActive) {
if (ether_addr_equal(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
pMgmt->sNodeDBTable[0].uInActiveCount = 0;
}
}
}
if (!is_multicast_ether_addr(pMACHeader->addr1)) {
if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (struct ieee80211_hdr *) pbyFrame)) {
return false;
}
if (!ether_addr_equal(pDevice->abyCurrentNetAddr, pMACHeader->addr1)) {
return false;
}
}
// Use for TKIP MIC
s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
if (ether_addr_equal((u8 *)pDevice->sRxEthHeader.h_source,
pDevice->abyCurrentNetAddr))
return false;
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
// get SA NodeIndex
if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(p802_11Header->addr2), &iSANodeIndex)) {
pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
}
}
}
if (IS_FC_WEP(pbyFrame)) {
bool bRxDecryOK = false;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
bIsWEP = true;
bRxDecryOK = s_bHandleRxEncryption(pDevice, pbyFrame, FrameSize,
pbyRsr, pbyNewRsr, &pKey, &bExtIV, &wRxTSC15_0, &dwRxTSC47_16);
if (bRxDecryOK) {
if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
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)) {
}
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);
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;
//
// 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
};
bool
device_receive_frame(
PSDevice pDevice,
PSRxDesc pCurrRD
)
{
PDEVICE_RD_INFO pRDInfo = pCurrRD->pRDInfo;
struct net_device_stats *pStats = &pDevice->stats;
struct sk_buff *skb;
PSMgmtObject pMgmt = pDevice->pMgmt;
PSRxMgmtPacket pRxPacket = &(pDevice->pMgmt->sRxPacket);
PS802_11Header p802_11Header;
unsigned char *pbyRsr;
unsigned char *pbyNewRsr;
unsigned char *pbyRSSI;
PQWORD pqwTSFTime;
unsigned short *pwFrameSize;
unsigned char *pbyFrame;
bool bDeFragRx = false;
bool bIsWEP = false;
unsigned int cbHeaderOffset;
unsigned int FrameSize;
unsigned short wEtherType = 0;
int iSANodeIndex = -1;
int iDANodeIndex = -1;
unsigned int ii;
unsigned int cbIVOffset;
bool bExtIV = false;
unsigned char *pbyRxSts;
unsigned char *pbyRxRate;
unsigned char *pbySQ;
unsigned int cbHeaderSize;
PSKeyItem pKey = NULL;
unsigned short wRxTSC15_0 = 0;
unsigned long dwRxTSC47_16 = 0;
SKeyItem STempKey;
// 802.11h RPI
unsigned long dwDuration = 0;
long ldBm = 0;
long ldBmThreshold = 0;
PS802_11Header pMACHeader;
bool bRxeapol_key = false;
skb = pRDInfo->skb;
//PLICE_DEBUG->
pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
//PLICE_DEBUG<-
pwFrameSize = (unsigned short *)(skb->data + 2);
FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
// Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
// Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
if ((FrameSize > 2364) || (FrameSize <= 32)) {
// Frame Size error drop this packet.
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 1\n");
return false;
}
pbyRxSts = (unsigned char *)(skb->data);
pbyRxRate = (unsigned char *)(skb->data + 1);
pbyRsr = (unsigned char *)(skb->data + FrameSize - 1);
pbyRSSI = (unsigned char *)(skb->data + FrameSize - 2);
pbyNewRsr = (unsigned char *)(skb->data + FrameSize - 3);
pbySQ = (unsigned char *)(skb->data + FrameSize - 4);
pqwTSFTime = (PQWORD)(skb->data + FrameSize - 12);
pbyFrame = (unsigned char *)(skb->data + 4);
// get packet size
FrameSize = cpu_to_le16(*pwFrameSize);
if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
// Min: 14 bytes ACK
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
return false;
}
//PLICE_DEBUG->
// update receive statistic counter
STAvUpdateRDStatCounter(&pDevice->scStatistic,
*pbyRsr,
*pbyNewRsr,
*pbyRxRate,
pbyFrame,
FrameSize);
pMACHeader = (PS802_11Header)((unsigned char *)(skb->data) + 8);
//PLICE_DEBUG<-
if (pDevice->bMeasureInProgress) {
if ((*pbyRsr & RSR_CRCOK) != 0)
pDevice->byBasicMap |= 0x01;
dwDuration = (FrameSize << 4);
dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
if (*pbyRxRate <= RATE_11M) {
if (*pbyRxSts & 0x01) {
// long preamble
dwDuration += 192;
} else {
// short preamble
dwDuration += 96;
}
} else {
dwDuration += 16;
}
RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
ldBmThreshold = -57;
for (ii = 7; ii > 0;) {
if (ldBm > ldBmThreshold)
break;
ldBmThreshold -= 5;
ii--;
}
pDevice->dwRPIs[ii] += dwDuration;
return false;
}
if (!is_multicast_ether_addr(pbyFrame)) {
if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header)(skb->data + 4))) {
pDevice->s802_11Counter.FrameDuplicateCount++;
return false;
}
}
// Use for TKIP MIC
s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
// filter packet send from myself
if (ether_addr_equal(pDevice->sRxEthHeader.abySrcAddr,
pDevice->abyCurrentNetAddr))
return false;
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
p802_11Header = (PS802_11Header)(pbyFrame);
// get SA NodeIndex
if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
}
}
}
if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex))
return false;
}
if (IS_FC_WEP(pbyFrame)) {
bool bRxDecryOK = false;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx WEP pkt\n");
bIsWEP = true;
if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
pKey = &STempKey;
pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
memcpy(pKey->abyKey,
&pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
pKey->uKeyLength
);
bRxDecryOK = s_bHostWepRxEncryption(pDevice,
pbyFrame,
FrameSize,
pbyRsr,
pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
pKey,
pbyNewRsr,
&bExtIV,
&wRxTSC15_0,
&dwRxTSC47_16);
} else {
bRxDecryOK = s_bHandleRxEncryption(pDevice,
pbyFrame,
FrameSize,
pbyRsr,
pbyNewRsr,
&pKey,
&bExtIV,
&wRxTSC15_0,
&dwRxTSC47_16);
}
if (bRxDecryOK) {
if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV Fail\n");
if ((pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
(pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
(pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
(pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
(pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
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++;
}
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 CRC length
FrameSize -= ETH_FCS_LEN;
if ((!(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
(IS_FRAGMENT_PKT((skb->data+4)))
) {
// defragment
bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header)(skb->data+4), FrameSize, bIsWEP, bExtIV);
pDevice->s802_11Counter.ReceivedFragmentCount++;
if (bDeFragRx) {
// defrag complete
skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
} else {
return false;
}
}
// Management & Control frame Handle
if ((IS_TYPE_DATA((skb->data+4))) == false) {
// Handle Control & Manage Frame
if (IS_TYPE_MGMT((skb->data+4))) {
unsigned char *pbyData1;
unsigned char *pbyData2;
pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
pRxPacket->cbMPDULen = FrameSize;
pRxPacket->uRSSI = *pbyRSSI;
pRxPacket->bySQ = *pbySQ;
HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
if (bIsWEP) {
// strip IV
pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
for (ii = 0; ii < (FrameSize - 4); ii++) {
*pbyData1 = *pbyData2;
pbyData1++;
pbyData2++;
}
}
pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
// hostap Deamon handle 802.11 management
if (pDevice->bEnableHostapd) {
skb->dev = pDevice->apdev;
skb->data += 4;
skb->tail += 4;
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;
}
}
return false;
} else {