/*
* Description:
* get each stations encryption key
*
* Parameters:
* In:
* pDevice -
* param -
* Out:
*
* Return Value:
*
*/
static int hostap_get_encryption(PSDevice pDevice,
struct viawget_hostapd_param *param,
int param_len)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
int ret = 0;
int ii;
int iNodeIndex =0;
param->u.crypt.err = 0;
if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
iNodeIndex = 0;
} else {
if (BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &iNodeIndex) == false) {
param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "hostap_get_encryption: HOSTAP_CRYPT_ERR_UNKNOWN_ADDR\n");
return -EINVAL;
}
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "hostap_get_encryption: %d\n", iNodeIndex);
memset(param->u.crypt.seq, 0, 8);
for (ii = 0 ; ii < 8 ; ii++) {
param->u.crypt.seq[ii] = (unsigned char)pMgmt->sNodeDBTable[iNodeIndex].KeyRSC >> (ii * 8);
}
return ret;
}
/*+
*
* Description:
* Update Tx attemps, Tx failure counter in Node DB
*
* In:
* Out:
* none
*
* Return Value: none
*
-*/
VOID
VNTWIFIvUpdateNodeTxCounter(
IN PVOID pMgmtHandle,
IN PBYTE pbyDestAddress,
IN BOOL bTxOk,
IN WORD wRate,
IN PBYTE pbyTxFailCount
)
{
PSMgmtObject pMgmt = (PSMgmtObject)pMgmtHandle;
UINT uNodeIndex = 0;
UINT ii;
if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
(pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
if (BSSDBbIsSTAInNodeDB(pMgmt, pbyDestAddress, &uNodeIndex) == FALSE) {
return;
}
}
pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts++;
if (bTxOk == TRUE) {
// transmit success, TxAttempts at least plus one
pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wRate]++;
} else {
pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
}
pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += pbyTxFailCount[MAX_RATE];
for(ii=0;ii<MAX_RATE;ii++) {
pMgmt->sNodeDBTable[uNodeIndex].uTxFail[ii] += pbyTxFailCount[ii];
}
return;
}
/*+
*
* Description:
* Update Tx attemps, Tx failure counter in Node DB
*
* In:
* Out:
* none
*
* Return Value: none
*
-*/
void
VNTWIFIvUpdateNodeTxCounter(
void *pMgmtHandle,
unsigned char *pbyDestAddress,
bool bTxOk,
unsigned short wRate,
unsigned char *pbyTxFailCount
)
{
PSMgmtObject pMgmt = (PSMgmtObject)pMgmtHandle;
unsigned int uNodeIndex = 0;
unsigned int ii;
if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
(pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
if (BSSDBbIsSTAInNodeDB(pMgmt, pbyDestAddress, &uNodeIndex) == false) {
return;
}
}
pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts++;
if (bTxOk == true) {
// transmit success, TxAttempts at least plus one
pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wRate]++;
} else {
pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
}
pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += pbyTxFailCount[MAX_RATE];
for(ii=0;ii<MAX_RATE;ii++) {
pMgmt->sNodeDBTable[uNodeIndex].uTxFail[ii] += pbyTxFailCount[ii];
}
return;
}
/*
* Description:
* remove station function supported for hostap deamon
*
* Parameters:
* In:
* pDevice -
* param -
* Out:
*
* Return Value:
*
*/
static int hostap_remove_sta(PSDevice pDevice,
struct viawget_hostapd_param *param)
{
unsigned int uNodeIndex;
if (BSSDBbIsSTAInNodeDB(pDevice->pMgmt, param->sta_addr, &uNodeIndex)) {
BSSvRemoveOneNode(pDevice, uNodeIndex);
} else {
return -ENOENT;
}
return 0;
}
static int hostap_get_info_sta(PSDevice pDevice,
struct viawget_hostapd_param *param)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned int uNodeIndex;
if (BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &uNodeIndex)) {
param->u.get_info_sta.inactive_sec =
(jiffies - pMgmt->sNodeDBTable[uNodeIndex].ulLastRxJiffer) / HZ;
} else {
return -ENOENT;
}
return 0;
}
/*
* Description:
* set station flag
*
* Parameters:
* In:
* pDevice -
* param -
* Out:
*
* Return Value:
*
*/
static int hostap_set_flags_sta(PSDevice pDevice,
struct viawget_hostapd_param *param)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned int uNodeIndex;
if (BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &uNodeIndex)) {
pMgmt->sNodeDBTable[uNodeIndex].dwFlags |= param->u.set_flags_sta.flags_or;
pMgmt->sNodeDBTable[uNodeIndex].dwFlags &= param->u.set_flags_sta.flags_and;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " dwFlags = %x \n",
(unsigned int)pMgmt->sNodeDBTable[uNodeIndex].dwFlags);
} else {
return -ENOENT;
}
return 0;
}
/*
* Description:
* add a station from hostap deamon
*
* Parameters:
* In:
* pDevice -
* param -
* Out:
*
* Return Value:
*
*/
static int hostap_add_sta(PSDevice pDevice,
struct viawget_hostapd_param *param)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned int uNodeIndex;
if (!BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &uNodeIndex)) {
BSSvCreateOneNode((PSDevice)pDevice, &uNodeIndex);
}
memcpy(pMgmt->sNodeDBTable[uNodeIndex].abyMACAddr, param->sta_addr, WLAN_ADDR_LEN);
pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_ASSOC;
pMgmt->sNodeDBTable[uNodeIndex].wCapInfo = param->u.add_sta.capability;
// TODO listenInterval
// pMgmt->sNodeDBTable[uNodeIndex].wListenInterval = 1;
pMgmt->sNodeDBTable[uNodeIndex].bPSEnable = false;
pMgmt->sNodeDBTable[uNodeIndex].bySuppRate = param->u.add_sta.tx_supp_rates;
// set max tx rate
pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate =
pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate;
// set max basic rate
pMgmt->sNodeDBTable[uNodeIndex].wMaxBasicRate = RATE_2M;
// Todo: check sta preamble, if ap can't support, set status code
pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble =
WLAN_GET_CAP_INFO_SHORTPREAMBLE(pMgmt->sNodeDBTable[uNodeIndex].wCapInfo);
pMgmt->sNodeDBTable[uNodeIndex].wAID = (unsigned short)param->u.add_sta.aid;
pMgmt->sNodeDBTable[uNodeIndex].ulLastRxJiffer = jiffies;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Add STA AID= %d \n", pMgmt->sNodeDBTable[uNodeIndex].wAID);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "MAC=%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X \n",
param->sta_addr[0],
param->sta_addr[1],
param->sta_addr[2],
param->sta_addr[3],
param->sta_addr[4],
param->sta_addr[5]
) ;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Max Support rate = %d \n",
pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate);
return 0;
}
VOID
VNTWIFIvGetTxRate(
IN PVOID pMgmtHandle,
IN PBYTE pbyDestAddress,
OUT PWORD pwTxDataRate,
OUT PBYTE pbyACKRate,
OUT PBYTE pbyCCKBasicRate,
OUT PBYTE pbyOFDMBasicRate
)
{
PSMgmtObject pMgmt = (PSMgmtObject)pMgmtHandle;
UINT uNodeIndex = 0;
WORD wTxDataRate = RATE_1M;
BYTE byACKRate = RATE_1M;
BYTE byCCKBasicRate = RATE_1M;
BYTE byOFDMBasicRate = RATE_24M;
PWLAN_IE_SUPP_RATES pSupportRateIEs = NULL;
PWLAN_IE_SUPP_RATES pExtSupportRateIEs = NULL;
if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
(pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
// Adhoc Tx rate decided from node DB
if(BSSDBbIsSTAInNodeDB(pMgmt, pbyDestAddress, &uNodeIndex)) {
wTxDataRate = (pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate);
pSupportRateIEs = (PWLAN_IE_SUPP_RATES) (pMgmt->sNodeDBTable[uNodeIndex].abyCurrSuppRates);
pExtSupportRateIEs = (PWLAN_IE_SUPP_RATES) (pMgmt->sNodeDBTable[uNodeIndex].abyCurrExtSuppRates);
} else {
if (pMgmt->eCurrentPHYMode != PHY_TYPE_11A) {
wTxDataRate = RATE_2M;
} else {
wTxDataRate = RATE_24M;
}
pSupportRateIEs = (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates;
pExtSupportRateIEs = (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates;
}
} else { // Infrastructure: rate decided from AP Node, index = 0
wTxDataRate = (pMgmt->sNodeDBTable[0].wTxDataRate);
#ifdef PLICE_DEBUG
printk("GetTxRate:AP MAC is %02x:%02x:%02x:%02x:%02x:%02x,TxRate is %d\n",
pMgmt->sNodeDBTable[0].abyMACAddr[0],pMgmt->sNodeDBTable[0].abyMACAddr[1],
pMgmt->sNodeDBTable[0].abyMACAddr[2],pMgmt->sNodeDBTable[0].abyMACAddr[3],
pMgmt->sNodeDBTable[0].abyMACAddr[4],pMgmt->sNodeDBTable[0].abyMACAddr[5],wTxDataRate);
#endif
pSupportRateIEs = (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates;
pExtSupportRateIEs = (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates;
}
byACKRate = VNTWIFIbyGetACKTxRate( (BYTE) wTxDataRate,
pSupportRateIEs,
pExtSupportRateIEs
);
if (byACKRate > (BYTE) wTxDataRate) {
byACKRate = (BYTE) wTxDataRate;
}
byCCKBasicRate = VNTWIFIbyGetACKTxRate( RATE_11M,
pSupportRateIEs,
pExtSupportRateIEs
);
byOFDMBasicRate = VNTWIFIbyGetACKTxRate(RATE_54M,
pSupportRateIEs,
pExtSupportRateIEs
);
*pwTxDataRate = wTxDataRate;
*pbyACKRate = byACKRate;
*pbyCCKBasicRate = byCCKBasicRate;
*pbyOFDMBasicRate = byOFDMBasicRate;
return;
}
/*
* Description:
* set each stations encryption key
*
* Parameters:
* In:
* pDevice -
* param -
* Out:
*
* Return Value:
*
*/
static int hostap_set_encryption(PSDevice pDevice,
struct viawget_hostapd_param *param,
int param_len)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
unsigned long dwKeyIndex = 0;
unsigned char abyKey[MAX_KEY_LEN];
unsigned char abySeq[MAX_KEY_LEN];
NDIS_802_11_KEY_RSC KeyRSC;
unsigned char byKeyDecMode = KEY_CTL_WEP;
int ret = 0;
int iNodeIndex = -1;
int ii;
bool bKeyTableFull = false;
unsigned short wKeyCtl = 0;
param->u.crypt.err = 0;
/*
if (param_len !=
(int) ((char *) param->u.crypt.key - (char *) param) +
param->u.crypt.key_len)
return -EINVAL;
*/
if (param->u.crypt.alg > WPA_ALG_CCMP)
return -EINVAL;
if ((param->u.crypt.idx > 3) || (param->u.crypt.key_len > MAX_KEY_LEN)) {
param->u.crypt.err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " HOSTAP_CRYPT_ERR_KEY_SET_FAILED\n");
return -EINVAL;
}
if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
if (param->u.crypt.idx >= MAX_GROUP_KEY)
return -EINVAL;
iNodeIndex = 0;
} else {
if (BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &iNodeIndex) == false) {
param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " HOSTAP_CRYPT_ERR_UNKNOWN_ADDR\n");
return -EINVAL;
}
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " hostap_set_encryption: sta_index %d \n", iNodeIndex);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " hostap_set_encryption: alg %d \n", param->u.crypt.alg);
if (param->u.crypt.alg == WPA_ALG_NONE) {
if (pMgmt->sNodeDBTable[iNodeIndex].bOnFly == true) {
if (KeybRemoveKey(&(pDevice->sKey),
param->sta_addr,
pMgmt->sNodeDBTable[iNodeIndex].dwKeyIndex,
pDevice->PortOffset) == false) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "KeybRemoveKey fail \n");
}
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = false;
}
pMgmt->sNodeDBTable[iNodeIndex].byKeyIndex = 0;
pMgmt->sNodeDBTable[iNodeIndex].dwKeyIndex = 0;
pMgmt->sNodeDBTable[iNodeIndex].uWepKeyLength = 0;
pMgmt->sNodeDBTable[iNodeIndex].KeyRSC = 0;
pMgmt->sNodeDBTable[iNodeIndex].dwTSC47_16 = 0;
pMgmt->sNodeDBTable[iNodeIndex].wTSC15_0 = 0;
pMgmt->sNodeDBTable[iNodeIndex].byCipherSuite = 0;
memset(&pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[0],
0,
MAX_KEY_LEN
);
return ret;
}
memcpy(abyKey, param->u.crypt.key, param->u.crypt.key_len);
// copy to node key tbl
pMgmt->sNodeDBTable[iNodeIndex].byKeyIndex = param->u.crypt.idx;
pMgmt->sNodeDBTable[iNodeIndex].uWepKeyLength = param->u.crypt.key_len;
memcpy(&pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[0],
param->u.crypt.key,
param->u.crypt.key_len
);
dwKeyIndex = (unsigned long)(param->u.crypt.idx);
if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) {
pDevice->byKeyIndex = (unsigned char)dwKeyIndex;
pDevice->bTransmitKey = true;
dwKeyIndex |= (1 << 31);
}
if (param->u.crypt.alg == WPA_ALG_WEP) {
if ((pDevice->bEnable8021x == false) || (iNodeIndex == 0)) {
KeybSetDefaultKey(&(pDevice->sKey),
dwKeyIndex & ~(BIT30 | USE_KEYRSC),
param->u.crypt.key_len,
NULL,
abyKey,
KEY_CTL_WEP,
pDevice->PortOffset,
pDevice->byLocalID);
} else {
// 8021x enable, individual key
dwKeyIndex |= (1 << 30); // set pairwise key
if (KeybSetKey(&(pDevice->sKey),
¶m->sta_addr[0],
dwKeyIndex & ~(USE_KEYRSC),
param->u.crypt.key_len,
(PQWORD) &(KeyRSC),
(unsigned char *)abyKey,
KEY_CTL_WEP,
pDevice->PortOffset,
pDevice->byLocalID) == true) {
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = true;
} else {
// Key Table Full
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = false;
bKeyTableFull = true;
}
}
pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
pDevice->bEncryptionEnable = true;
pMgmt->byCSSPK = KEY_CTL_WEP;
pMgmt->byCSSGK = KEY_CTL_WEP;
pMgmt->sNodeDBTable[iNodeIndex].byCipherSuite = KEY_CTL_WEP;
pMgmt->sNodeDBTable[iNodeIndex].dwKeyIndex = dwKeyIndex;
return ret;
}
if (param->u.crypt.seq) {
memcpy(&abySeq, param->u.crypt.seq, 8);
for (ii = 0 ; ii < 8 ; ii++) {
KeyRSC |= (abySeq[ii] << (ii * 8));
}
dwKeyIndex |= 1 << 29;
pMgmt->sNodeDBTable[iNodeIndex].KeyRSC = KeyRSC;
}
if (param->u.crypt.alg == WPA_ALG_TKIP) {
if (param->u.crypt.key_len != MAX_KEY_LEN)
return -EINVAL;
pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled;
byKeyDecMode = KEY_CTL_TKIP;
pMgmt->byCSSPK = KEY_CTL_TKIP;
pMgmt->byCSSGK = KEY_CTL_TKIP;
}
if (param->u.crypt.alg == WPA_ALG_CCMP) {
if ((param->u.crypt.key_len != AES_KEY_LEN) ||
(pDevice->byLocalID <= REV_ID_VT3253_A1))
return -EINVAL;
pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled;
byKeyDecMode = KEY_CTL_CCMP;
pMgmt->byCSSPK = KEY_CTL_CCMP;
pMgmt->byCSSGK = KEY_CTL_CCMP;
}
if (iNodeIndex == 0) {
KeybSetDefaultKey(&(pDevice->sKey),
dwKeyIndex,
param->u.crypt.key_len,
(PQWORD) &(KeyRSC),
abyKey,
byKeyDecMode,
pDevice->PortOffset,
pDevice->byLocalID);
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = true;
} else {
dwKeyIndex |= (1 << 30); // set pairwise key
if (KeybSetKey(&(pDevice->sKey),
¶m->sta_addr[0],
dwKeyIndex,
param->u.crypt.key_len,
(PQWORD) &(KeyRSC),
(unsigned char *)abyKey,
byKeyDecMode,
pDevice->PortOffset,
pDevice->byLocalID) == true) {
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = true;
} else {
// Key Table Full
pMgmt->sNodeDBTable[iNodeIndex].bOnFly = false;
bKeyTableFull = true;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " Key Table Full\n");
}
}
if (bKeyTableFull == true) {
wKeyCtl &= 0x7F00; // clear all key control filed
wKeyCtl |= (byKeyDecMode << 4);
wKeyCtl |= (byKeyDecMode);
wKeyCtl |= 0x0044; // use group key for all address
wKeyCtl |= 0x4000; // disable KeyTable[MAX_KEY_TABLE-1] on-fly to genernate rx int
MACvSetDefaultKeyCtl(pDevice->PortOffset, wKeyCtl, MAX_KEY_TABLE-1, pDevice->byLocalID);
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " Set key sta_index= %d \n", iNodeIndex);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " tx_index=%d len=%d \n", param->u.crypt.idx,
param->u.crypt.key_len );
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " key=%x-%x-%x-%x-%x-xxxxx \n",
pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[0],
pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[1],
pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[2],
pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[3],
pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[4]
);
// set wep key
pDevice->bEncryptionEnable = true;
pMgmt->sNodeDBTable[iNodeIndex].byCipherSuite = byKeyDecMode;
pMgmt->sNodeDBTable[iNodeIndex].dwKeyIndex = dwKeyIndex;
pMgmt->sNodeDBTable[iNodeIndex].dwTSC47_16 = 0;
pMgmt->sNodeDBTable[iNodeIndex].wTSC15_0 = 0;
return ret;
}
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 {
