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/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2007, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************
Module Name:
aironet.c
Abstract:
Revision History:
Who When What
-------- ---------- ----------------------------------------------
Paul Lin 04-06-15 Initial
*/
#include "../rt_config.h"
/*
==========================================================================
Description:
association state machine init, including state transition and timer init
Parameters:
S - pointer to the association state machine
==========================================================================
*/
VOID AironetStateMachineInit(
IN PRTMP_ADAPTER pAd,
IN STATE_MACHINE *S,
OUT STATE_MACHINE_FUNC Trans[])
{
StateMachineInit(S, Trans, MAX_AIRONET_STATE, MAX_AIRONET_MSG, (STATE_MACHINE_FUNC)Drop, AIRONET_IDLE, AIRONET_MACHINE_BASE);
StateMachineSetAction(S, AIRONET_IDLE, MT2_AIRONET_MSG, (STATE_MACHINE_FUNC)AironetMsgAction);
StateMachineSetAction(S, AIRONET_IDLE, MT2_AIRONET_SCAN_REQ, (STATE_MACHINE_FUNC)AironetRequestAction);
StateMachineSetAction(S, AIRONET_SCANNING, MT2_AIRONET_SCAN_DONE, (STATE_MACHINE_FUNC)AironetReportAction);
}
/*
==========================================================================
Description:
This is state machine function.
When receiving EAPOL packets which is for 802.1x key management.
Use both in WPA, and WPAPSK case.
In this function, further dispatch to different functions according to the received packet. 3 categories are :
1. normal 4-way pairwisekey and 2-way groupkey handshake
2. MIC error (Countermeasures attack) report packet from STA.
3. Request for pairwise/group key update from STA
Return:
==========================================================================
*/
VOID AironetMsgAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
USHORT Length;
UCHAR Index, i;
PUCHAR pData;
PAIRONET_RM_REQUEST_FRAME pRMReq;
PRM_REQUEST_ACTION pReqElem;
DBGPRINT(RT_DEBUG_TRACE, ("-----> AironetMsgAction\n"));
// 0. Get Aironet IAPP header first
pRMReq = (PAIRONET_RM_REQUEST_FRAME) &Elem->Msg[LENGTH_802_11];
pData = (PUCHAR) &Elem->Msg[LENGTH_802_11];
// 1. Change endian format form network to little endian
Length = be2cpu16(pRMReq->IAPP.Length);
// 2.0 Sanity check, this should only happen when CCX 2.0 support is enabled
if (pAd->StaCfg.CCXEnable != TRUE)
return;
// 2.1 Radio measurement must be on
if (pAd->StaCfg.CCXControl.field.RMEnable != 1)
return;
// 2.2. Debug print all bit information
DBGPRINT(RT_DEBUG_TRACE, ("IAPP ID & Length %d\n", Length));
DBGPRINT(RT_DEBUG_TRACE, ("IAPP Type %x\n", pRMReq->IAPP.Type));
DBGPRINT(RT_DEBUG_TRACE, ("IAPP SubType %x\n", pRMReq->IAPP.SubType));
DBGPRINT(RT_DEBUG_TRACE, ("IAPP Dialog Token %x\n", pRMReq->IAPP.Token));
DBGPRINT(RT_DEBUG_TRACE, ("IAPP Activation Delay %x\n", pRMReq->Delay));
DBGPRINT(RT_DEBUG_TRACE, ("IAPP Measurement Offset %x\n", pRMReq->Offset));
// 3. Check IAPP frame type, it must be 0x32 for Cisco Aironet extension
if (pRMReq->IAPP.Type != AIRONET_IAPP_TYPE)
{
DBGPRINT(RT_DEBUG_ERROR, ("Wrong IAPP type for Cisco Aironet extension\n"));
return;
}
// 4. Check IAPP frame subtype, it must be 0x01 for Cisco Aironet extension request.
// Since we are acting as client only, we will disregards reply subtype.
if (pRMReq->IAPP.SubType != AIRONET_IAPP_SUBTYPE_REQUEST)
{
DBGPRINT(RT_DEBUG_ERROR, ("Wrong IAPP subtype for Cisco Aironet extension\n"));
return;
}
// 5. Verify Destination MAC and Source MAC, both should be all zeros.
if (! MAC_ADDR_EQUAL(pRMReq->IAPP.DA, ZERO_MAC_ADDR))
{
DBGPRINT(RT_DEBUG_ERROR, ("Wrong IAPP DA for Cisco Aironet extension, it's not Zero\n"));
return;
}
if (! MAC_ADDR_EQUAL(pRMReq->IAPP.SA, ZERO_MAC_ADDR))
{
DBGPRINT(RT_DEBUG_ERROR, ("Wrong IAPP SA for Cisco Aironet extension, it's not Zero\n"));
return;
}
// 6. Reinit all report related fields
NdisZeroMemory(pAd->StaCfg.FrameReportBuf, 2048);
NdisZeroMemory(pAd->StaCfg.BssReportOffset, sizeof(USHORT) * MAX_LEN_OF_BSS_TABLE);
NdisZeroMemory(pAd->StaCfg.MeasurementRequest, sizeof(RM_REQUEST_ACTION) * 4);
// 7. Point to the start of first element report element
pAd->StaCfg.FrameReportLen = LENGTH_802_11 + sizeof(AIRONET_IAPP_HEADER);
DBGPRINT(RT_DEBUG_TRACE, ("FR len = %d\n", pAd->StaCfg.FrameReportLen));
pAd->StaCfg.LastBssIndex = 0xff;
pAd->StaCfg.RMReqCnt = 0;
pAd->StaCfg.ParallelReq = FALSE;
pAd->StaCfg.ParallelDuration = 0;
pAd->StaCfg.ParallelChannel = 0;
pAd->StaCfg.IAPPToken = pRMReq->IAPP.Token;
pAd->StaCfg.CurrentRMReqIdx = 0;
pAd->StaCfg.CLBusyBytes = 0;
// Reset the statistics
for (i = 0; i < 8; i++)
pAd->StaCfg.RPIDensity[i] = 0;
Index = 0;
// 8. Save dialog token for report
pAd->StaCfg.IAPPToken = pRMReq->IAPP.Token;
// Save Activation delay & measurement offset, Not really needed
// 9. Point to the first request element
pData += sizeof(AIRONET_RM_REQUEST_FRAME);
// Length should exclude the CISCO Aironet SNAP header
Length -= (sizeof(AIRONET_RM_REQUEST_FRAME) - LENGTH_802_1_H);
// 10. Start Parsing the Measurement elements.
// Be careful about multiple MR elements within one frames.
while (Length > 0)
{
pReqElem = (PRM_REQUEST_ACTION) pData;
switch (pReqElem->ReqElem.Eid)
{
case IE_MEASUREMENT_REQUEST:
// From the example, it seems we only need to support one request in one frame
// There is no multiple request in one frame.
// Besides, looks like we need to take care the measurement request only.
// The measurement request is always 4 bytes.
// Start parsing this type of request.
// 0. Eid is IE_MEASUREMENT_REQUEST
// 1. Length didn't include Eid and Length field, it always be 8.
// 2. Measurement Token, we nned to save it for the corresponding report.
// 3. Measurement Mode, Although there are definitions, but we din't see value other than
// 0 from test specs examples.
// 4. Measurement Type, this is what we need to do.
switch (pReqElem->ReqElem.Type)
{
case MSRN_TYPE_CHANNEL_LOAD_REQ:
case MSRN_TYPE_NOISE_HIST_REQ:
case MSRN_TYPE_BEACON_REQ:
// Check the Enable non-serving channel measurement control
if (pAd->StaCfg.CCXControl.field.DCRMEnable == 0)
{
// Check channel before enqueue the action
if (pReqElem->Measurement.Channel != pAd->CommonCfg.Channel)
break;
}
else
{
// If off channel measurement, check the TU duration limit
if (pReqElem->Measurement.Channel != pAd->CommonCfg.Channel)
if (pReqElem->Measurement.Duration > pAd->StaCfg.CCXControl.field.TuLimit)
break;
}
// Save requests and execute actions later
NdisMoveMemory(&pAd->StaCfg.MeasurementRequest[Index], pReqElem, sizeof(RM_REQUEST_ACTION));
Index += 1;
break;
case MSRN_TYPE_FRAME_REQ:
// Since it's option, we will support later
// FrameRequestAction(pAd, pData);
break;
default:
break;
}
// Point to next Measurement request
pData += sizeof(RM_REQUEST_ACTION);
Length -= sizeof(RM_REQUEST_ACTION);
break;
// We accept request only, all others are dropped
case IE_MEASUREMENT_REPORT:
case IE_AP_TX_POWER:
case IE_MEASUREMENT_CAPABILITY:
default:
return;
}
}
// 11. Update some flags and index
pAd->StaCfg.RMReqCnt = Index;
if (Index)
{
MlmeEnqueue(pAd, AIRONET_STATE_MACHINE, MT2_AIRONET_SCAN_REQ, 0, NULL);
RT28XX_MLME_HANDLER(pAd);
}
DBGPRINT(RT_DEBUG_TRACE, ("<----- AironetMsgAction\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
None
Note:
========================================================================
*/
VOID AironetRequestAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
PRM_REQUEST_ACTION pReq;
// 1. Point to next request element
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[pAd->StaCfg.CurrentRMReqIdx];
// 2. Parse measurement type and call appropriate functions
if (pReq->ReqElem.Type == MSRN_TYPE_CHANNEL_LOAD_REQ)
// Channel Load measurement request
ChannelLoadRequestAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else if (pReq->ReqElem.Type == MSRN_TYPE_NOISE_HIST_REQ)
// Noise Histogram measurement request
NoiseHistRequestAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else if (pReq->ReqElem.Type == MSRN_TYPE_BEACON_REQ)
// Beacon measurement request
BeaconRequestAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else
// Unknown. Do nothing and return, this should never happen
return;
// 3. Peek into the next request, if it's parallel, we will update the scan time to the largest one
if ((pAd->StaCfg.CurrentRMReqIdx + 1) < pAd->StaCfg.RMReqCnt)
{
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[pAd->StaCfg.CurrentRMReqIdx + 1];
// Check for parallel bit
if ((pReq->ReqElem.Mode & 0x01) && (pReq->Measurement.Channel == pAd->StaCfg.CCXScanChannel))
{
// Update parallel mode request information
pAd->StaCfg.ParallelReq = TRUE;
pAd->StaCfg.CCXScanTime = ((pReq->Measurement.Duration > pAd->StaCfg.CCXScanTime) ?
(pReq->Measurement.Duration) : (pAd->StaCfg.CCXScanTime));
}
}
// 4. Call RT28XX_MLME_HANDLER to execute the request mlme commands, Scan request is the only one used
RT28XX_MLME_HANDLER(pAd);
}
/*
========================================================================
Routine Description:
Prepare channel load report action, special scan operation added
to support
Arguments:
pAd Pointer to our adapter
pData Start from element ID
Return Value:
None
Note:
========================================================================
*/
VOID ChannelLoadRequestAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
PRM_REQUEST_ACTION pReq;
MLME_SCAN_REQ_STRUCT ScanReq;
UCHAR ZeroSsid[32];
NDIS_STATUS NStatus;
PUCHAR pOutBuffer = NULL;
PHEADER_802_11 pNullFrame;
DBGPRINT(RT_DEBUG_TRACE, ("ChannelLoadRequestAction ----->\n"));
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[Index];
NdisZeroMemory(ZeroSsid, 32);
// Prepare for special scan request
// The scan definition is different with our Active, Passive scan definition.
// For CCX2, Active means send out probe request with broadcast BSSID.
// Passive means no probe request sent, only listen to the beacons.
// The channel scanned is fixed as specified, no need to scan all channels.
// The scan wait time is specified in the request too.
// Passive scan Mode
// Control state machine is not idle, reject the request
if ((pAd->Mlme.CntlMachine.CurrState != CNTL_IDLE) && (Index == 0))
return;
// Fill out stuff for scan request
ScanParmFill(pAd, &ScanReq, ZeroSsid, 0, BSS_ANY, SCAN_CISCO_CHANNEL_LOAD);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_SCAN_REQ, sizeof(MLME_SCAN_REQ_STRUCT), &ScanReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_LIST_SCAN;
// Reset some internal control flags to make sure this scan works.
BssTableInit(&pAd->StaCfg.CCXBssTab);
pAd->StaCfg.ScanCnt = 0;
pAd->StaCfg.CCXScanChannel = pReq->Measurement.Channel;
pAd->StaCfg.CCXScanTime = pReq->Measurement.Duration;
DBGPRINT(RT_DEBUG_TRACE, ("Duration %d, Channel %d!\n", pReq->Measurement.Duration, pReq->Measurement.Channel));
// If it's non serving channel scan, send out a null frame with PSM bit on.
if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
{
// Use MLME enqueue method
NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if (NStatus != NDIS_STATUS_SUCCESS)
return;
pNullFrame = (PHEADER_802_11) pOutBuffer;;
// Make the power save Null frame with PSM bit on
MgtMacHeaderInit(pAd, pNullFrame, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
pNullFrame->Duration = 0;
pNullFrame->FC.Type = BTYPE_DATA;
pNullFrame->FC.PwrMgmt = PWR_SAVE;
// Send using priority queue
MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
MlmeFreeMemory(pAd, pOutBuffer);
DBGPRINT(RT_DEBUG_TRACE, ("Send PSM Data frame for off channel RM\n"));
RTMPusecDelay(5000);
}
pAd->StaCfg.CCXReqType = MSRN_TYPE_CHANNEL_LOAD_REQ;
pAd->StaCfg.CLBusyBytes = 0;
// Enable Rx with promiscuous reception
RTMP_IO_WRITE32(pAd, RX_FILTR_CFG, 0x1010);
// Set channel load measurement flag
RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_RADIO_MEASUREMENT);
pAd->Mlme.AironetMachine.CurrState = AIRONET_SCANNING;
DBGPRINT(RT_DEBUG_TRACE, ("ChannelLoadRequestAction <-----\n"));
}
/*
========================================================================
Routine Description:
Prepare noise histogram report action, special scan operation added
to support
Arguments:
pAd Pointer to our adapter
pData Start from element ID
Return Value:
None
Note:
========================================================================
*/
VOID NoiseHistRequestAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
PRM_REQUEST_ACTION pReq;
MLME_SCAN_REQ_STRUCT ScanReq;
UCHAR ZeroSsid[32], i;
NDIS_STATUS NStatus;
PUCHAR pOutBuffer = NULL;
PHEADER_802_11 pNullFrame;
DBGPRINT(RT_DEBUG_TRACE, ("NoiseHistRequestAction ----->\n"));
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[Index];
NdisZeroMemory(ZeroSsid, 32);
// Prepare for special scan request
// The scan definition is different with our Active, Passive scan definition.
// For CCX2, Active means send out probe request with broadcast BSSID.
// Passive means no probe request sent, only listen to the beacons.
// The channel scanned is fixed as specified, no need to scan all channels.
// The scan wait time is specified in the request too.
// Passive scan Mode
// Control state machine is not idle, reject the request
if ((pAd->Mlme.CntlMachine.CurrState != CNTL_IDLE) && (Index == 0))
return;
// Fill out stuff for scan request
ScanParmFill(pAd, &ScanReq, ZeroSsid, 0, BSS_ANY, SCAN_CISCO_NOISE);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_SCAN_REQ, sizeof(MLME_SCAN_REQ_STRUCT), &ScanReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_LIST_SCAN;
// Reset some internal control flags to make sure this scan works.
BssTableInit(&pAd->StaCfg.CCXBssTab);
pAd->StaCfg.ScanCnt = 0;
pAd->StaCfg.CCXScanChannel = pReq->Measurement.Channel;
pAd->StaCfg.CCXScanTime = pReq->Measurement.Duration;
pAd->StaCfg.CCXReqType = MSRN_TYPE_NOISE_HIST_REQ;
DBGPRINT(RT_DEBUG_TRACE, ("Duration %d, Channel %d!\n", pReq->Measurement.Duration, pReq->Measurement.Channel));
// If it's non serving channel scan, send out a null frame with PSM bit on.
if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
{
// Use MLME enqueue method
NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if (NStatus != NDIS_STATUS_SUCCESS)
return;
pNullFrame = (PHEADER_802_11) pOutBuffer;
// Make the power save Null frame with PSM bit on
MgtMacHeaderInit(pAd, pNullFrame, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
pNullFrame->Duration = 0;
pNullFrame->FC.Type = BTYPE_DATA;
pNullFrame->FC.PwrMgmt = PWR_SAVE;
// Send using priority queue
MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
MlmeFreeMemory(pAd, pOutBuffer);
DBGPRINT(RT_DEBUG_TRACE, ("Send PSM Data frame for off channel RM\n"));
RTMPusecDelay(5000);
}
// Reset the statistics
for (i = 0; i < 8; i++)
pAd->StaCfg.RPIDensity[i] = 0;
// Enable Rx with promiscuous reception
RTMP_IO_WRITE32(pAd, RX_FILTR_CFG, 0x1010);
// Set channel load measurement flag
RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_RADIO_MEASUREMENT);
pAd->Mlme.AironetMachine.CurrState = AIRONET_SCANNING;
DBGPRINT(RT_DEBUG_TRACE, ("NoiseHistRequestAction <-----\n"));
}
/*
========================================================================
Routine Description:
Prepare Beacon report action, special scan operation added
to support
Arguments:
pAd Pointer to our adapter
pData Start from element ID
Return Value:
None
Note:
========================================================================
*/
VOID BeaconRequestAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
PRM_REQUEST_ACTION pReq;
NDIS_STATUS NStatus;
PUCHAR pOutBuffer = NULL;
PHEADER_802_11 pNullFrame;
MLME_SCAN_REQ_STRUCT ScanReq;
UCHAR ZeroSsid[32];
DBGPRINT(RT_DEBUG_TRACE, ("BeaconRequestAction ----->\n"));
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[Index];
NdisZeroMemory(ZeroSsid, 32);
// Prepare for special scan request
// The scan definition is different with our Active, Passive scan definition.
// For CCX2, Active means send out probe request with broadcast BSSID.
// Passive means no probe request sent, only listen to the beacons.
// The channel scanned is fixed as specified, no need to scan all channels.
// The scan wait time is specified in the request too.
if (pReq->Measurement.ScanMode == MSRN_SCAN_MODE_PASSIVE)
{
// Passive scan Mode
DBGPRINT(RT_DEBUG_TRACE, ("Passive Scan Mode!\n"));
// Control state machine is not idle, reject the request
if ((pAd->Mlme.CntlMachine.CurrState != CNTL_IDLE) && (Index == 0))
return;
// Fill out stuff for scan request
ScanParmFill(pAd, &ScanReq, ZeroSsid, 0, BSS_ANY, SCAN_CISCO_PASSIVE);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_SCAN_REQ, sizeof(MLME_SCAN_REQ_STRUCT), &ScanReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_LIST_SCAN;
// Reset some internal control flags to make sure this scan works.
BssTableInit(&pAd->StaCfg.CCXBssTab);
pAd->StaCfg.ScanCnt = 0;
pAd->StaCfg.CCXScanChannel = pReq->Measurement.Channel;
pAd->StaCfg.CCXScanTime = pReq->Measurement.Duration;
pAd->StaCfg.CCXReqType = MSRN_TYPE_BEACON_REQ;
DBGPRINT(RT_DEBUG_TRACE, ("Duration %d!\n", pReq->Measurement.Duration));
// If it's non serving channel scan, send out a null frame with PSM bit on.
if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
{
// Use MLME enqueue method
NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if (NStatus != NDIS_STATUS_SUCCESS)
return;
pNullFrame = (PHEADER_802_11) pOutBuffer;
// Make the power save Null frame with PSM bit on
MgtMacHeaderInit(pAd, pNullFrame, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
pNullFrame->Duration = 0;
pNullFrame->FC.Type = BTYPE_DATA;
pNullFrame->FC.PwrMgmt = PWR_SAVE;
// Send using priority queue
MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
MlmeFreeMemory(pAd, pOutBuffer);
DBGPRINT(RT_DEBUG_TRACE, ("Send PSM Data frame for off channel RM\n"));
RTMPusecDelay(5000);
}
pAd->Mlme.AironetMachine.CurrState = AIRONET_SCANNING;
}
else if (pReq->Measurement.ScanMode == MSRN_SCAN_MODE_ACTIVE)
{
// Active scan Mode
DBGPRINT(RT_DEBUG_TRACE, ("Active Scan Mode!\n"));
// Control state machine is not idle, reject the request
if (pAd->Mlme.CntlMachine.CurrState != CNTL_IDLE)
return;
// Fill out stuff for scan request
ScanParmFill(pAd, &ScanReq, ZeroSsid, 0, BSS_ANY, SCAN_CISCO_ACTIVE);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_SCAN_REQ, sizeof(MLME_SCAN_REQ_STRUCT), &ScanReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_LIST_SCAN;
// Reset some internal control flags to make sure this scan works.
BssTableInit(&pAd->StaCfg.CCXBssTab);
pAd->StaCfg.ScanCnt = 0;
pAd->StaCfg.CCXScanChannel = pReq->Measurement.Channel;
pAd->StaCfg.CCXScanTime = pReq->Measurement.Duration;
pAd->StaCfg.CCXReqType = MSRN_TYPE_BEACON_REQ;
DBGPRINT(RT_DEBUG_TRACE, ("Duration %d!\n", pReq->Measurement.Duration));
// If it's non serving channel scan, send out a null frame with PSM bit on.
if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
{
// Use MLME enqueue method
NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer); //Get an unused nonpaged memory
if (NStatus != NDIS_STATUS_SUCCESS)
return;
pNullFrame = (PHEADER_802_11) pOutBuffer;
// Make the power save Null frame with PSM bit on
MgtMacHeaderInit(pAd, pNullFrame, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
pNullFrame->Duration = 0;
pNullFrame->FC.Type = BTYPE_DATA;
pNullFrame->FC.PwrMgmt = PWR_SAVE;
// Send using priority queue
MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
MlmeFreeMemory(pAd, pOutBuffer);
DBGPRINT(RT_DEBUG_TRACE, ("Send PSM Data frame for off channel RM\n"));
RTMPusecDelay(5000);
}
pAd->Mlme.AironetMachine.CurrState = AIRONET_SCANNING;
}
else if (pReq->Measurement.ScanMode == MSRN_SCAN_MODE_BEACON_TABLE)
{
// Beacon report Mode, report all the APS in current bss table
DBGPRINT(RT_DEBUG_TRACE, ("Beacon Report Mode!\n"));
// Copy current BSS table to CCX table, we can omit this step later on.
NdisMoveMemory(&pAd->StaCfg.CCXBssTab, &pAd->ScanTab, sizeof(BSS_TABLE));
// Create beacon report from Bss table
AironetCreateBeaconReportFromBssTable(pAd);
// Set state to scanning
pAd->Mlme.AironetMachine.CurrState = AIRONET_SCANNING;
// Enqueue report request
// Cisco scan request is finished, prepare beacon report
MlmeEnqueue(pAd, AIRONET_STATE_MACHINE, MT2_AIRONET_SCAN_DONE, 0, NULL);
}
else
{
// Wrong scan Mode
DBGPRINT(RT_DEBUG_TRACE, ("Wrong Scan Mode!\n"));
}
DBGPRINT(RT_DEBUG_TRACE, ("BeaconRequestAction <-----\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
None
Note:
========================================================================
*/
VOID AironetReportAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
PRM_REQUEST_ACTION pReq;
ULONG Now32;
NdisGetSystemUpTime(&Now32);
pAd->StaCfg.LastBeaconRxTime = Now32;
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[pAd->StaCfg.CurrentRMReqIdx];
DBGPRINT(RT_DEBUG_TRACE, ("AironetReportAction ----->\n"));
// 1. Parse measurement type and call appropriate functions
if (pReq->ReqElem.Type == MSRN_TYPE_CHANNEL_LOAD_REQ)
// Channel Load measurement request
ChannelLoadReportAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else if (pReq->ReqElem.Type == MSRN_TYPE_NOISE_HIST_REQ)
// Noise Histogram measurement request
NoiseHistReportAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else if (pReq->ReqElem.Type == MSRN_TYPE_BEACON_REQ)
// Beacon measurement request
BeaconReportAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else
// Unknown. Do nothing and return
;
// 2. Point to the correct index of action element, start from 0
pAd->StaCfg.CurrentRMReqIdx++;
// 3. Check for parallel actions
if (pAd->StaCfg.ParallelReq == TRUE)
{
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[pAd->StaCfg.CurrentRMReqIdx];
// Process next action right away
if (pReq->ReqElem.Type == MSRN_TYPE_CHANNEL_LOAD_REQ)
// Channel Load measurement request
ChannelLoadReportAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
else if (pReq->ReqElem.Type == MSRN_TYPE_NOISE_HIST_REQ)
// Noise Histogram measurement request
NoiseHistReportAction(pAd, pAd->StaCfg.CurrentRMReqIdx);
pAd->StaCfg.ParallelReq = FALSE;
pAd->StaCfg.CurrentRMReqIdx++;
}
if (pAd->StaCfg.CurrentRMReqIdx >= pAd->StaCfg.RMReqCnt)
{
// 4. There is no more unprocessed measurement request, go for transmit this report
AironetFinalReportAction(pAd);
pAd->Mlme.AironetMachine.CurrState = AIRONET_IDLE;
}
else
{
pReq = (PRM_REQUEST_ACTION) &pAd->StaCfg.MeasurementRequest[pAd->StaCfg.CurrentRMReqIdx];
if (pReq->Measurement.Channel != pAd->CommonCfg.Channel)
{
RTMPusecDelay(100000);
}
// 5. There are more requests to be measure
MlmeEnqueue(pAd, AIRONET_STATE_MACHINE, MT2_AIRONET_SCAN_REQ, 0, NULL);
RT28XX_MLME_HANDLER(pAd);
}
DBGPRINT(RT_DEBUG_TRACE, ("AironetReportAction <-----\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
None
Note:
========================================================================
*/
VOID AironetFinalReportAction(
IN PRTMP_ADAPTER pAd)
{
PUCHAR pDest;
PAIRONET_IAPP_HEADER pIAPP;
PHEADER_802_11 pHeader;
UCHAR AckRate = RATE_2;
USHORT AckDuration = 0;
NDIS_STATUS NStatus;
PUCHAR pOutBuffer = NULL;
ULONG FrameLen = 0;
DBGPRINT(RT_DEBUG_TRACE, ("AironetFinalReportAction ----->\n"));
// 0. Set up the frame pointer, Frame was inited at the end of message action
pDest = &pAd->StaCfg.FrameReportBuf[LENGTH_802_11];
// 1. Update report IAPP fields
pIAPP = (PAIRONET_IAPP_HEADER) pDest;
// 2. Copy Cisco SNAP header
NdisMoveMemory(pIAPP->CiscoSnapHeader, SNAP_AIRONET, LENGTH_802_1_H);
// 3. network order for this 16bit length
pIAPP->Length = cpu2be16(pAd->StaCfg.FrameReportLen - LENGTH_802_11 - LENGTH_802_1_H);
// 3.1 sanity check the report length, ignore it if there is nothing to report
if (be2cpu16(pIAPP->Length) <= 18)
return;
// 4. Type must be 0x32
pIAPP->Type = AIRONET_IAPP_TYPE;
// 5. SubType for report must be 0x81
pIAPP->SubType = AIRONET_IAPP_SUBTYPE_REPORT;
// 6. DA is not used and must be zero, although the whole frame was cleared at the start of function
// We will do it again here. We can use BSSID instead
COPY_MAC_ADDR(pIAPP->DA, pAd->CommonCfg.Bssid);
// 7. SA is the client reporting which must be our MAC
COPY_MAC_ADDR(pIAPP->SA, pAd->CurrentAddress);
// 8. Copy the saved dialog token
pIAPP->Token = pAd->StaCfg.IAPPToken;
// 9. Make the Report frame 802.11 header
// Reuse function in wpa.c
pHeader = (PHEADER_802_11) pAd->StaCfg.FrameReportBuf;
pAd->Sequence ++;
WpaMacHeaderInit(pAd, pHeader, 0, pAd->CommonCfg.Bssid);
// ACK size is 14 include CRC, and its rate is based on real time information
AckRate = pAd->CommonCfg.ExpectedACKRate[pAd->CommonCfg.MlmeRate];
AckDuration = RTMPCalcDuration(pAd, AckRate, 14);
pHeader->Duration = pAd->CommonCfg.Dsifs + AckDuration;
// Use MLME enqueue method
NStatus = MlmeAllocateMemory(pAd, &pOutBuffer); //Get an unused nonpaged memory
if (NStatus != NDIS_STATUS_SUCCESS)
return;
// 10. Prepare report frame with dynamic outbuffer. Just simply copy everything.
MakeOutgoingFrame(pOutBuffer, &FrameLen,
pAd->StaCfg.FrameReportLen, pAd->StaCfg.FrameReportBuf,
END_OF_ARGS);
// 11. Send using priority queue
MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
MlmeFreeMemory(pAd, pOutBuffer);
pAd->StaCfg.CCXReqType = MSRN_TYPE_UNUSED;
DBGPRINT(RT_DEBUG_TRACE, ("AironetFinalReportAction <-----\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
None
Note:
========================================================================
*/
VOID ChannelLoadReportAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
PMEASUREMENT_REPORT_ELEMENT pReport;
PCHANNEL_LOAD_REPORT pLoad;
PUCHAR pDest;
UCHAR CCABusyFraction;
DBGPRINT(RT_DEBUG_TRACE, ("ChannelLoadReportAction ----->\n"));
// Disable Rx with promiscuous reception, make it back to normal
RTMP_IO_WRITE32(pAd, RX_FILTR_CFG, STANORMAL); // Staion not drop control frame will fail WiFi Certification.
// 0. Setup pointer for processing beacon & probe response
pDest = (PUCHAR) &pAd->StaCfg.FrameReportBuf[pAd->StaCfg.FrameReportLen];
pReport = (PMEASUREMENT_REPORT_ELEMENT) pDest;
// 1. Fill Measurement report element field.
pReport->Eid = IE_MEASUREMENT_REPORT;
// Fixed Length at 9, not include Eid and length fields
pReport->Length = 9;
pReport->Token = pAd->StaCfg.MeasurementRequest[Index].ReqElem.Token;
pReport->Mode = pAd->StaCfg.MeasurementRequest[Index].ReqElem.Mode;
pReport->Type = MSRN_TYPE_CHANNEL_LOAD_REQ;
// 2. Fill channel report measurement data
pDest += sizeof(MEASUREMENT_REPORT_ELEMENT);
pLoad = (PCHANNEL_LOAD_REPORT) pDest;
pLoad->Channel = pAd->StaCfg.MeasurementRequest[Index].Measurement.Channel;
pLoad->Spare = 0;
pLoad->Duration = pAd->StaCfg.MeasurementRequest[Index].Measurement.Duration;
// 3. Calculate the CCA Busy Fraction
// (Bytes + ACK size) * 8 / Tx speed * 255 / 1000 / measurement duration, use 24 us Tx speed
// = (Bytes + ACK) / 12 / duration
// 9 is the good value for pAd->StaCfg.CLFactor
// CCABusyFraction = (UCHAR) (pAd->StaCfg.CLBusyBytes / 9 / pLoad->Duration);
CCABusyFraction = (UCHAR) (pAd->StaCfg.CLBusyBytes / pAd->StaCfg.CLFactor / pLoad->Duration);
if (CCABusyFraction < 10)
CCABusyFraction = (UCHAR) (pAd->StaCfg.CLBusyBytes / 3 / pLoad->Duration) + 1;
pLoad->CCABusy = CCABusyFraction;
DBGPRINT(RT_DEBUG_TRACE, ("CLBusyByte %ld, Duration %d, Result, %d\n", pAd->StaCfg.CLBusyBytes, pLoad->Duration, CCABusyFraction));
DBGPRINT(RT_DEBUG_TRACE, ("FrameReportLen %d\n", pAd->StaCfg.FrameReportLen));
pAd->StaCfg.FrameReportLen += (sizeof(MEASUREMENT_REPORT_ELEMENT) + sizeof(CHANNEL_LOAD_REPORT));
DBGPRINT(RT_DEBUG_TRACE, ("FrameReportLen %d\n", pAd->StaCfg.FrameReportLen));
// 4. Clear channel load measurement flag
RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_RADIO_MEASUREMENT);
// 5. reset to idle state
pAd->Mlme.AironetMachine.CurrState = AIRONET_IDLE;
DBGPRINT(RT_DEBUG_TRACE, ("ChannelLoadReportAction <-----\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
None
Note:
========================================================================
*/
VOID NoiseHistReportAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
PMEASUREMENT_REPORT_ELEMENT pReport;
PNOISE_HIST_REPORT pNoise;
PUCHAR pDest;
UCHAR i,NoiseCnt;
USHORT TotalRPICnt, TotalRPISum;
DBGPRINT(RT_DEBUG_TRACE, ("NoiseHistReportAction ----->\n"));
// 0. Disable Rx with promiscuous reception, make it back to normal
RTMP_IO_WRITE32(pAd, RX_FILTR_CFG, STANORMAL); // Staion not drop control frame will fail WiFi Certification.
// 1. Setup pointer for processing beacon & probe response
pDest = (PUCHAR) &pAd->StaCfg.FrameReportBuf[pAd->StaCfg.FrameReportLen];
pReport = (PMEASUREMENT_REPORT_ELEMENT) pDest;
// 2. Fill Measurement report element field.
pReport->Eid = IE_MEASUREMENT_REPORT;
// Fixed Length at 16, not include Eid and length fields
pReport->Length = 16;
pReport->Token = pAd->StaCfg.MeasurementRequest[Index].ReqElem.Token;
pReport->Mode = pAd->StaCfg.MeasurementRequest[Index].ReqElem.Mode;
pReport->Type = MSRN_TYPE_NOISE_HIST_REQ;
// 3. Fill noise histogram report measurement data
pDest += sizeof(MEASUREMENT_REPORT_ELEMENT);
pNoise = (PNOISE_HIST_REPORT) pDest;
pNoise->Channel = pAd->StaCfg.MeasurementRequest[Index].Measurement.Channel;
pNoise->Spare = 0;
pNoise->Duration = pAd->StaCfg.MeasurementRequest[Index].Measurement.Duration;
// 4. Fill Noise histogram, the total RPI counts should be 0.4 * TU
// We estimate 4000 normal packets received durning 10 seconds test.
// Adjust it if required.
// 3 is a good value for pAd->StaCfg.NHFactor
// TotalRPICnt = pNoise->Duration * 3 / 10;
TotalRPICnt = pNoise->Duration * pAd->StaCfg.NHFactor / 10;
TotalRPISum = 0;
for (i = 0; i < 8; i++)
{
TotalRPISum += pAd->StaCfg.RPIDensity[i];
DBGPRINT(RT_DEBUG_TRACE, ("RPI %d Conuts %d\n", i, pAd->StaCfg.RPIDensity[i]));
}
// Double check if the counter is larger than our expectation.
// We will replace it with the total number plus a fraction.
if (TotalRPISum > TotalRPICnt)
TotalRPICnt = TotalRPISum + pNoise->Duration / 20;
DBGPRINT(RT_DEBUG_TRACE, ("Total RPI Conuts %d\n", TotalRPICnt));
// 5. Initialize noise count for the total summation of 0xff
NoiseCnt = 0;
for (i = 1; i < 8; i++)
{
pNoise->Density[i] = (UCHAR) (pAd->StaCfg.RPIDensity[i] * 255 / TotalRPICnt);
if ((pNoise->Density[i] == 0) && (pAd->StaCfg.RPIDensity[i] != 0))
pNoise->Density[i]++;
NoiseCnt += pNoise->Density[i];
DBGPRINT(RT_DEBUG_TRACE, ("Reported RPI[%d] = 0x%02x\n", i, pNoise->Density[i]));
}
// 6. RPI[0] represents the rest of counts
pNoise->Density[0] = 0xff - NoiseCnt;
DBGPRINT(RT_DEBUG_TRACE, ("Reported RPI[0] = 0x%02x\n", pNoise->Density[0]));
pAd->StaCfg.FrameReportLen += (sizeof(MEASUREMENT_REPORT_ELEMENT) + sizeof(NOISE_HIST_REPORT));
// 7. Clear channel load measurement flag
RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_RADIO_MEASUREMENT);
// 8. reset to idle state
pAd->Mlme.AironetMachine.CurrState = AIRONET_IDLE;
DBGPRINT(RT_DEBUG_TRACE, ("NoiseHistReportAction <-----\n"));
}
/*
========================================================================
Routine Description:
Prepare Beacon report action,
Arguments:
pAd Pointer to our adapter
Return Value:
None
Note:
========================================================================
*/
VOID BeaconReportAction(
IN PRTMP_ADAPTER pAd,
IN UCHAR Index)
{
DBGPRINT(RT_DEBUG_TRACE, ("BeaconReportAction ----->\n"));
// Looks like we don't have anything thing need to do here.
// All measurement report already finished in AddBeaconReport
// The length is in the FrameReportLen
// reset Beacon index for next beacon request
pAd->StaCfg.LastBssIndex = 0xff;
// reset to idle state
pAd->Mlme.AironetMachine.CurrState = AIRONET_IDLE;
DBGPRINT(RT_DEBUG_TRACE, ("BeaconReportAction <-----\n"));
}
/*
========================================================================
Routine Description:
Arguments:
Index Current BSSID in CCXBsstab entry index
Return Value:
Note:
========================================================================
*/
VOID AironetAddBeaconReport(
IN PRTMP_ADAPTER pAd,
IN ULONG Index,
IN PMLME_QUEUE_ELEM pElem)
{
PVOID pMsg;
PUCHAR pSrc, pDest;
UCHAR ReqIdx;
ULONG MsgLen;
USHORT Length;
PFRAME_802_11 pFrame;
PMEASUREMENT_REPORT_ELEMENT pReport;
PEID_STRUCT pEid;
PBEACON_REPORT pBeaconReport;
PBSS_ENTRY pBss;
// 0. Setup pointer for processing beacon & probe response
pMsg = pElem->Msg;
MsgLen = pElem->MsgLen;
pFrame = (PFRAME_802_11) pMsg;
pSrc = pFrame->Octet; // Start from AP TSF
pBss = (PBSS_ENTRY) &pAd->StaCfg.CCXBssTab.BssEntry[Index];
ReqIdx = pAd->StaCfg.CurrentRMReqIdx;
// 1 Check the Index, if we already create this entry, only update the average RSSI
if ((Index <= pAd->StaCfg.LastBssIndex) && (pAd->StaCfg.LastBssIndex != 0xff))
{
pDest = (PUCHAR) &pAd->StaCfg.FrameReportBuf[pAd->StaCfg.BssReportOffset[Index]];
// Point to bss report information
pDest += sizeof(MEASUREMENT_REPORT_ELEMENT);
pBeaconReport = (PBEACON_REPORT) pDest;
// Update Rx power, in dBm
// Get the original RSSI readback from BBP
pBeaconReport->RxPower += pAd->BbpRssiToDbmDelta;
// Average the Rssi reading
pBeaconReport->RxPower = (pBeaconReport->RxPower + pBss->Rssi) / 2;
// Get to dBm format
pBeaconReport->RxPower -= pAd->BbpRssiToDbmDelta;
DBGPRINT(RT_DEBUG_TRACE, ("Bssid %02x:%02x:%02x:%02x:%02x:%02x ",
pBss->Bssid[0], pBss->Bssid[1], pBss->Bssid[2],
pBss->Bssid[3], pBss->Bssid[4], pBss->Bssid[5]));
DBGPRINT(RT_DEBUG_TRACE, ("RxPower[%ld] Rssi %d, Avg Rssi %d\n", Index, (pBss->Rssi - pAd->BbpRssiToDbmDelta), pBeaconReport->RxPower - 256));
DBGPRINT(RT_DEBUG_TRACE, ("FrameReportLen = %d\n", pAd->StaCfg.BssReportOffset[Index]));
// Update other information here
// Done
return;
}
// 2. Update reported Index
pAd->StaCfg.LastBssIndex = Index;
// 3. Setup the buffer address for copying this BSSID into reporting frame
// The offset should start after 802.11 header and report frame header.
pDest = (PUCHAR) &pAd->StaCfg.FrameReportBuf[pAd->StaCfg.FrameReportLen];
// 4. Save the start offset of each Bss in report frame
pAd->StaCfg.BssReportOffset[Index] = pAd->StaCfg.FrameReportLen;
// 5. Fill Measurement report fields
pReport = (PMEASUREMENT_REPORT_ELEMENT) pDest;
pReport->Eid = IE_MEASUREMENT_REPORT;
pReport->Length = 0;
pReport->Token = pAd->StaCfg.MeasurementRequest[ReqIdx].ReqElem.Token;
pReport->Mode = pAd->StaCfg.MeasurementRequest[ReqIdx].ReqElem.Mode;
pReport->Type = MSRN_TYPE_BEACON_REQ;
Length = sizeof(MEASUREMENT_REPORT_ELEMENT);
pDest += sizeof(MEASUREMENT_REPORT_ELEMENT);
// 6. Start thebeacon report format
pBeaconReport = (PBEACON_REPORT) pDest;
pDest += sizeof(BEACON_REPORT);
Length += sizeof(BEACON_REPORT);
// 7. Copy Channel number
pBeaconReport->Channel = pBss->Channel;
pBeaconReport->Spare = 0;
pBeaconReport->Duration = pAd->StaCfg.MeasurementRequest[ReqIdx].Measurement.Duration;
pBeaconReport->PhyType = ((pBss->SupRateLen+pBss->ExtRateLen > 4) ? PHY_ERP : PHY_DSS);
// 8. Rx power, in dBm
pBeaconReport->RxPower = pBss->Rssi - pAd->BbpRssiToDbmDelta;
DBGPRINT(RT_DEBUG_TRACE, ("Bssid %02x:%02x:%02x:%02x:%02x:%02x ",
pBss->Bssid[0], pBss->Bssid[1], pBss->Bssid[2],
pBss->Bssid[3], pBss->Bssid[4], pBss->Bssid[5]));
DBGPRINT(RT_DEBUG_TRACE, ("RxPower[%ld], Rssi %d\n", Index, pBeaconReport->RxPower - 256));
DBGPRINT(RT_DEBUG_TRACE, ("FrameReportLen = %d\n", pAd->StaCfg.FrameReportLen));
pBeaconReport->BeaconInterval = pBss->BeaconPeriod;
COPY_MAC_ADDR(pBeaconReport->BSSID, pFrame->Hdr.Addr3);
NdisMoveMemory(pBeaconReport->ParentTSF, pSrc, 4);
NdisMoveMemory(pBeaconReport->TargetTSF, &pElem->TimeStamp.u.LowPart, 4);
NdisMoveMemory(&pBeaconReport->TargetTSF[4], &pElem->TimeStamp.u.HighPart, 4);
// 9. Skip the beacon frame and offset to start of capabilityinfo since we already processed capabilityinfo
pSrc += (TIMESTAMP_LEN + 2);
pBeaconReport->CapabilityInfo = *(USHORT *)pSrc;
// 10. Point to start of element ID
pSrc += 2;
pEid = (PEID_STRUCT) pSrc;
// 11. Start process all variable Eid oayload and add the appropriate to the frame report
while (((PUCHAR) pEid + pEid->Len + 1) < ((PUCHAR) pFrame + MsgLen))
{
// Only limited EID are required to report for CCX 2. It includes SSID, Supported rate,
// FH paramenter set, DS parameter set, CF parameter set, IBSS parameter set,
// TIM (report first 4 bytes only, radio measurement capability
switch (pEid->Eid)
{
case IE_SSID:
case IE_SUPP_RATES:
case IE_FH_PARM:
case IE_DS_PARM:
case IE_CF_PARM:
case IE_IBSS_PARM:
NdisMoveMemory(pDest, pEid, pEid->Len + 2);
pDest += (pEid->Len + 2);
Length += (pEid->Len + 2);
break;
case IE_MEASUREMENT_CAPABILITY:
// Since this IE is duplicated with WPA security IE, we has to do sanity check before
// recognize it.
// 1. It also has fixed 6 bytes IE length.
if (pEid->Len != 6)
break;
// 2. Check the Cisco Aironet OUI
if (NdisEqualMemory(CISCO_OUI, (pSrc + 2), 3))
{
// Matched, this is what we want
NdisMoveMemory(pDest, pEid, pEid->Len + 2);
pDest += (pEid->Len + 2);
Length += (pEid->Len + 2);
}
break;
case IE_TIM:
if (pEid->Len > 4)
{
// May truncate and report the first 4 bytes only, with the eid & len, total should be 6
NdisMoveMemory(pDest, pEid, 6);
pDest += 6;
Length += 6;
}
else
{
NdisMoveMemory(pDest, pEid, pEid->Len + 2);
pDest += (pEid->Len + 2);
Length += (pEid->Len + 2);
}
break;
default:
break;
}
// 12. Move to next element ID
pSrc += (2 + pEid->Len);
pEid = (PEID_STRUCT) pSrc;
}
// 13. Update the length in the header, not include EID and length
pReport->Length = Length - 4;
// 14. Update the frame report buffer data length
pAd->StaCfg.FrameReportLen += Length;
DBGPRINT(RT_DEBUG_TRACE, ("FR len = %d\n", pAd->StaCfg.FrameReportLen));
}
/*
========================================================================
Routine Description:
Arguments:
Index Current BSSID in CCXBsstab entry index
Return Value:
Note:
========================================================================
*/
VOID AironetCreateBeaconReportFromBssTable(
IN PRTMP_ADAPTER pAd)
{
PMEASUREMENT_REPORT_ELEMENT pReport;
PBEACON_REPORT pBeaconReport;
UCHAR Index, ReqIdx;
USHORT Length;
PUCHAR pDest;
PBSS_ENTRY pBss;
// 0. setup base pointer
ReqIdx = pAd->StaCfg.CurrentRMReqIdx;
for (Index = 0; Index < pAd->StaCfg.CCXBssTab.BssNr; Index++)
{
// 1. Setup the buffer address for copying this BSSID into reporting frame
// The offset should start after 802.11 header and report frame header.
pDest = (PUCHAR) &pAd->StaCfg.FrameReportBuf[pAd->StaCfg.FrameReportLen];
pBss = (PBSS_ENTRY) &pAd->StaCfg.CCXBssTab.BssEntry[Index];
Length = 0;
// 2. Fill Measurement report fields
pReport = (PMEASUREMENT_REPORT_ELEMENT) pDest;
pReport->Eid = IE_MEASUREMENT_REPORT;
pReport->Length = 0;
pReport->Token = pAd->StaCfg.MeasurementRequest[ReqIdx].ReqElem.Token;
pReport->Mode = pAd->StaCfg.MeasurementRequest[ReqIdx].ReqElem.Mode;
pReport->Type = MSRN_TYPE_BEACON_REQ;
Length = sizeof(MEASUREMENT_REPORT_ELEMENT);
pDest += sizeof(MEASUREMENT_REPORT_ELEMENT);
// 3. Start the beacon report format
pBeaconReport = (PBEACON_REPORT) pDest;
pDest += sizeof(BEACON_REPORT);
Length += sizeof(BEACON_REPORT);
// 4. Copy Channel number
pBeaconReport->Channel = pBss->Channel;
pBeaconReport->Spare = 0;
pBeaconReport->Duration = pAd->StaCfg.MeasurementRequest[ReqIdx].Measurement.Duration;
pBeaconReport->PhyType = ((pBss->SupRateLen+pBss->ExtRateLen > 4) ? PHY_ERP : PHY_DSS);
pBeaconReport->RxPower = pBss->Rssi - pAd->BbpRssiToDbmDelta;
pBeaconReport->BeaconInterval = pBss->BeaconPeriod;
pBeaconReport->CapabilityInfo = pBss->CapabilityInfo;
COPY_MAC_ADDR(pBeaconReport->BSSID, pBss->Bssid);
NdisMoveMemory(pBeaconReport->ParentTSF, pBss->PTSF, 4);
NdisMoveMemory(pBeaconReport->TargetTSF, pBss->TTSF, 8);
// 5. Create SSID
*pDest++ = 0x00;
*pDest++ = pBss->SsidLen;
NdisMoveMemory(pDest, pBss->Ssid, pBss->SsidLen);
pDest += pBss->SsidLen;
Length += (2 + pBss->SsidLen);
// 6. Create SupportRates
*pDest++ = 0x01;
*pDest++ = pBss->SupRateLen;
NdisMoveMemory(pDest, pBss->SupRate, pBss->SupRateLen);
pDest += pBss->SupRateLen;
Length += (2 + pBss->SupRateLen);
// 7. DS Parameter
*pDest++ = 0x03;
*pDest++ = 1;
*pDest++ = pBss->Channel;
Length += 3;
// 8. IBSS parameter if presents
if (pBss->BssType == BSS_ADHOC)
{
*pDest++ = 0x06;
*pDest++ = 2;
*(PUSHORT) pDest = pBss->AtimWin;
pDest += 2;
Length += 4;
}
// 9. Update length field, not include EID and length
pReport->Length = Length - 4;
// 10. Update total frame size
pAd->StaCfg.FrameReportLen += Length;
}
}
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