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path: root/cleopatre/devkit/mt7601udrv/ap/ap_ids.c
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/****************************************************************************
 * Ralink Tech Inc.
 * 4F, No. 2 Technology 5th Rd.
 * Science-based Industrial Park
 * Hsin-chu, Taiwan, R.O.C.
 * (c) Copyright 2002, Ralink Technology, Inc.
 *
 * All rights reserved. Ralink's source code is an unpublished work and the
 * use of a copyright notice does not imply otherwise. This source code
 * contains confidential trade secret material of Ralink Tech. Any attemp
 * or participation in deciphering, decoding, reverse engineering or in any
 * way altering the source code is stricitly prohibited, unless the prior
 * written consent of Ralink Technology, Inc. is obtained.
 ****************************************************************************
     
     Module Name:
     ap_ids.c
     
     Abstract:
     monitor intrusion detection condition
     
     Revision History:
     Who         When          What
     --------    ----------    ----------------------------------------------
 */
#ifdef IDS_SUPPORT

#include "rt_config.h"

#define IDS_EXEC_INTV          1000				/* 1 sec */


VOID RTMPIdsStart(
	IN PRTMP_ADAPTER	pAd)
{

	if (pAd->ApCfg.IDSTimerRunning == FALSE)
	{		
		RTMPSetTimer(&pAd->ApCfg.IDSTimer, IDS_EXEC_INTV);
		pAd->ApCfg.IDSTimerRunning = TRUE;
	}
}

VOID RTMPIdsStop(
	IN PRTMP_ADAPTER	pAd)
{
	BOOLEAN     Cancelled;
	
	if (pAd->ApCfg.IDSTimerRunning == TRUE)
	{
		RTMPCancelTimer(&pAd->ApCfg.IDSTimer, &Cancelled);
		pAd->ApCfg.IDSTimerRunning = FALSE;
	}
}

#ifdef SYSTEM_LOG_SUPPORT
VOID RTMPHandleIdsEvent(
	IN PRTMP_ADAPTER	pAd)
{
	INT i, j;

	UINT32	FloodFrameCount[IW_FLOOD_EVENT_TYPE_NUM];
	UINT32	FloodFrameThreshold[IW_FLOOD_EVENT_TYPE_NUM];

	FloodFrameCount[0] = pAd->ApCfg.RcvdAuthCount;
	FloodFrameCount[1] = pAd->ApCfg.RcvdAssocReqCount;
	FloodFrameCount[2] = pAd->ApCfg.RcvdReassocReqCount;
	FloodFrameCount[3] = pAd->ApCfg.RcvdProbeReqCount;
	FloodFrameCount[4] = pAd->ApCfg.RcvdDisassocCount;
	FloodFrameCount[5] = pAd->ApCfg.RcvdDeauthCount;
	FloodFrameCount[6] = pAd->ApCfg.RcvdEapReqCount;

	FloodFrameThreshold[0] = pAd->ApCfg.AuthFloodThreshold;
	FloodFrameThreshold[1] = pAd->ApCfg.AssocReqFloodThreshold;
	FloodFrameThreshold[2] = pAd->ApCfg.ReassocReqFloodThreshold;
	FloodFrameThreshold[3] = pAd->ApCfg.ProbeReqFloodThreshold;
	FloodFrameThreshold[4] = pAd->ApCfg.DisassocFloodThreshold;
	FloodFrameThreshold[5] = pAd->ApCfg.DeauthFloodThreshold;
	FloodFrameThreshold[6] = pAd->ApCfg.EapReqFloodThreshold;

	/* trigger flooding traffic event */
	for (j = 0; j < IW_FLOOD_EVENT_TYPE_NUM; j++)
	{		
		if ((FloodFrameThreshold[j] > 0) && (FloodFrameCount[j] > FloodFrameThreshold[j]))
		{						
			RTMPSendWirelessEvent(pAd, IW_FLOOD_AUTH_EVENT_FLAG + j, NULL, MAX_MBSSID_NUM(pAd), 0);	
			/*DBGPRINT(RT_DEBUG_TRACE, ("flooding traffic event(%d) - %d\n", IW_FLOOD_AUTH_EVENT_FLAG + j, FloodFrameCount[j])); */
		}
	}	
	
	for (i = 0; i < pAd->ApCfg.BssidNum; i++)
	{	
		UINT32	SpoofedFrameCount[IW_SPOOF_EVENT_TYPE_NUM];
		CHAR	RssiOfSpoofedFrame[IW_SPOOF_EVENT_TYPE_NUM];
		INT		k;

		SpoofedFrameCount[0] = pAd->ApCfg.MBSSID[i].RcvdConflictSsidCount;
		SpoofedFrameCount[1] = pAd->ApCfg.MBSSID[i].RcvdSpoofedAssocRespCount;
		SpoofedFrameCount[2] = pAd->ApCfg.MBSSID[i].RcvdSpoofedReassocRespCount;
		SpoofedFrameCount[3] = pAd->ApCfg.MBSSID[i].RcvdSpoofedProbeRespCount;
		SpoofedFrameCount[4] = pAd->ApCfg.MBSSID[i].RcvdSpoofedBeaconCount;
		SpoofedFrameCount[5] = pAd->ApCfg.MBSSID[i].RcvdSpoofedDisassocCount;
		SpoofedFrameCount[6] = pAd->ApCfg.MBSSID[i].RcvdSpoofedAuthCount;
		SpoofedFrameCount[7] = pAd->ApCfg.MBSSID[i].RcvdSpoofedDeauthCount;
		SpoofedFrameCount[8] = pAd->ApCfg.MBSSID[i].RcvdSpoofedUnknownMgmtCount;
		SpoofedFrameCount[9] = pAd->ApCfg.MBSSID[i].RcvdReplayAttackCount;

		RssiOfSpoofedFrame[0] = pAd->ApCfg.MBSSID[i].RssiOfRcvdConflictSsid;
		RssiOfSpoofedFrame[1] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAssocResp;
		RssiOfSpoofedFrame[2] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedReassocResp;
		RssiOfSpoofedFrame[3] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedProbeResp;
		RssiOfSpoofedFrame[4] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedBeacon;
		RssiOfSpoofedFrame[5] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDisassoc;
		RssiOfSpoofedFrame[6] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAuth;
		RssiOfSpoofedFrame[7] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDeauth;
		RssiOfSpoofedFrame[8] = pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedUnknownMgmt;
		RssiOfSpoofedFrame[9] = pAd->ApCfg.MBSSID[i].RssiOfRcvdReplayAttack;

		/* trigger spoofed attack event */
		for (k = 0; k < IW_SPOOF_EVENT_TYPE_NUM; k++)
		{
			if (SpoofedFrameCount[k] > 0)
			{			
				RTMPSendWirelessEvent(pAd, IW_CONFLICT_SSID_EVENT_FLAG + k, NULL, i, RssiOfSpoofedFrame[k]);	
				/*DBGPRINT(RT_DEBUG_TRACE, ("spoofed attack event(%d) - %d\n", IW_CONFLICT_SSID_EVENT_FLAG + k, SpoofedFrameCount[k])); */
			}
		}					
	}

}
#endif /* SYSTEM_LOG_SUPPORT */

VOID RTMPClearAllIdsCounter(
	IN PRTMP_ADAPTER	pAd)
{
	INT	i;

	pAd->ApCfg.RcvdAuthCount = 0;
	pAd->ApCfg.RcvdAssocReqCount = 0;
	pAd->ApCfg.RcvdReassocReqCount = 0;
	pAd->ApCfg.RcvdProbeReqCount = 0;
	pAd->ApCfg.RcvdDisassocCount = 0;
	pAd->ApCfg.RcvdDeauthCount = 0;
	pAd->ApCfg.RcvdEapReqCount = 0;

	for (i = 0; i < pAd->ApCfg.BssidNum; i++)
	{
		pAd->ApCfg.MBSSID[i].RcvdConflictSsidCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedAssocRespCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedReassocRespCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedProbeRespCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedBeaconCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedDisassocCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedAuthCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedDeauthCount = 0;
		pAd->ApCfg.MBSSID[i].RcvdSpoofedUnknownMgmtCount = 0;	
		pAd->ApCfg.MBSSID[i].RcvdReplayAttackCount = 0;		

		pAd->ApCfg.MBSSID[i].RssiOfRcvdConflictSsid = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAssocResp = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedReassocResp = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedProbeResp = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedBeacon = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDisassoc = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAuth = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDeauth = 0;
		pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedUnknownMgmt = 0;	
		pAd->ApCfg.MBSSID[i].RssiOfRcvdReplayAttack = 0;		
		
	}
}

VOID RTMPIdsPeriodicExec(
	IN PVOID SystemSpecific1, 
	IN PVOID FunctionContext, 
	IN PVOID SystemSpecific2, 
	IN PVOID SystemSpecific3) 
{
	PRTMP_ADAPTER	pAd = (RTMP_ADAPTER *)FunctionContext;

	pAd->ApCfg.IDSTimerRunning = FALSE;

#ifdef SYSTEM_LOG_SUPPORT
	/* when IDS occured, send out wireless event */
	if (pAd->CommonCfg.bWirelessEvent)	
		RTMPHandleIdsEvent(pAd);
#endif /* SYSTEM_LOG_SUPPORT */

	/* clear all IDS counter */
	RTMPClearAllIdsCounter(pAd);

	/* set timer */
	if (pAd->ApCfg.IdsEnable)
	{
		RTMPSetTimer(&pAd->ApCfg.IDSTimer, IDS_EXEC_INTV);
		pAd->ApCfg.IDSTimerRunning = TRUE;
	}	
}


/*
	========================================================================
	Routine Description:
		This routine is used to check if a rogue AP sent an 802.11 management
		frame to a client using our BSSID.
		
	Arguments:
		pAd    	- Pointer to our adapter
		pHeader - Pointer to 802.11 header

	Return Value:
		TRUE	- This is a spoofed frame
		FALSE	- This isn't a spoofed frame

	========================================================================
*/
BOOLEAN RTMPSpoofedMgmtDetection(
	IN PRTMP_ADAPTER	pAd,
	IN PHEADER_802_11 	pHeader,
	IN CHAR				Rssi0,
	IN CHAR				Rssi1,
	IN CHAR				Rssi2,
	IN UCHAR			AntSel)
{
	INT	i;	

	for (i = 0; i < pAd->ApCfg.BssidNum; i++)
	{
		/* Spoofed BSSID detection */
		if (NdisEqualMemory(pHeader->Addr2, pAd->ApCfg.MBSSID[i].Bssid, MAC_ADDR_LEN))
		{
			CHAR RcvdRssi;
		
			RcvdRssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Rssi0, RSSI_0, AntSel, BW_20), ConvertToRssi(pAd, Rssi1, RSSI_1, AntSel, BW_20), ConvertToRssi(pAd, Rssi2, RSSI_2, AntSel, BW_20));
		
			switch (pHeader->FC.SubType) 
			{
        		case SUBTYPE_ASSOC_RSP:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedAssocRespCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAssocResp = RcvdRssi;
					break;

				case SUBTYPE_REASSOC_RSP:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedReassocRespCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedReassocResp = RcvdRssi;
					break;

				case SUBTYPE_PROBE_RSP:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedProbeRespCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedProbeResp = RcvdRssi;
					break;

				case SUBTYPE_BEACON:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedBeaconCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedBeacon = RcvdRssi;
					break;	

				case SUBTYPE_DISASSOC:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedDisassocCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDisassoc = RcvdRssi;
					break;
					
				case SUBTYPE_AUTH:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedAuthCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedAuth = RcvdRssi;
					break;

				case SUBTYPE_DEAUTH:
          			pAd->ApCfg.MBSSID[i].RcvdSpoofedDeauthCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedDeauth = RcvdRssi;
					break;

				default:
            		pAd->ApCfg.MBSSID[i].RcvdSpoofedUnknownMgmtCount ++;
					pAd->ApCfg.MBSSID[i].RssiOfRcvdSpoofedUnknownMgmt = RcvdRssi;
            		break;	

			}					

			return TRUE;
			
		}
		
	}

	return FALSE;
}


VOID RTMPConflictSsidDetection(
	IN PRTMP_ADAPTER	pAd,
	IN PUCHAR			pSsid,
	IN UCHAR			SsidLen,
	IN CHAR				Rssi0,
	IN CHAR				Rssi1,
	IN CHAR				Rssi2,
	IN UCHAR			AntSel)
{
	INT	i;
	
	for (i = 0; i < pAd->ApCfg.BssidNum; i++)
	{
		/* Conflict SSID detection */
		if (SSID_EQUAL(pSsid, SsidLen, pAd->ApCfg.MBSSID[i].Ssid, pAd->ApCfg.MBSSID[i].SsidLen))
		{
			CHAR RcvdRssi;
		
			RcvdRssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Rssi0, RSSI_0, AntSel, BW_20), ConvertToRssi(pAd, Rssi1, RSSI_1, AntSel, BW_20), ConvertToRssi(pAd, Rssi2, RSSI_2, AntSel, BW_20));

			pAd->ApCfg.MBSSID[i].RcvdConflictSsidCount ++;
			pAd->ApCfg.MBSSID[i].RssiOfRcvdConflictSsid = RcvdRssi;
			return;
		}	
	}			
}

BOOLEAN RTMPReplayAttackDetection(
	IN PRTMP_ADAPTER	pAd,
	IN PUCHAR			pAddr2,
	IN CHAR				Rssi0,
	IN CHAR				Rssi1,
	IN CHAR				Rssi2,
	IN UCHAR			AntSel,
	IN UCHAR			BW)
{
	INT	i;
	
	for (i = 0; i < pAd->ApCfg.BssidNum; i++)
	{
		/* Conflict SSID detection */
		if (NdisEqualMemory(pAddr2, pAd->ApCfg.MBSSID[i].Bssid, MAC_ADDR_LEN))
		{
			CHAR RcvdRssi;
		
			RcvdRssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Rssi0, RSSI_0, AntSel, BW), ConvertToRssi(pAd, Rssi1, RSSI_1, AntSel, BW), ConvertToRssi(pAd, Rssi2, RSSI_2, AntSel, BW));
		
			pAd->ApCfg.MBSSID[i].RcvdReplayAttackCount ++;
			pAd->ApCfg.MBSSID[i].RssiOfRcvdReplayAttack = RcvdRssi;
			return TRUE;
		}	
	}	
	return FALSE;
}

VOID RTMPUpdateStaMgmtCounter(
	IN PRTMP_ADAPTER	pAd,
	IN USHORT			type)
{
		
	switch (type)
	{
		case SUBTYPE_ASSOC_REQ:
          	pAd->ApCfg.RcvdAssocReqCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdAssocReqCount=%d\n", pAd->ApCfg.RcvdAssocReqCount)); */
			break;

		case SUBTYPE_REASSOC_REQ:
          	pAd->ApCfg.RcvdReassocReqCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdReassocReqCount=%d\n", pAd->ApCfg.RcvdReassocReqCount)); */
			break;

		case SUBTYPE_PROBE_REQ:
          	pAd->ApCfg.RcvdProbeReqCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdProbeReqCount=%d\n", pAd->ApCfg.RcvdProbeReqCount)); */
			break;	

		case SUBTYPE_DISASSOC:
          	pAd->ApCfg.RcvdDisassocCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdDisassocCount=%d\n", pAd->ApCfg.RcvdDisassocCount)); */
			break;

		case SUBTYPE_DEAUTH:
          	pAd->ApCfg.RcvdDeauthCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdDeauthCount=%d\n", pAd->ApCfg.RcvdDeauthCount)); */
			break;

		case SUBTYPE_AUTH:
          	pAd->ApCfg.RcvdAuthCount ++;
			/*DBGPRINT(RT_DEBUG_TRACE, ("RcvdAuthCount=%d\n", pAd->ApCfg.RcvdAuthCount)); */
			break;	

	}
	
}

VOID rtmp_read_ids_from_file(
			IN  PRTMP_ADAPTER pAd,
			PSTRING tmpbuf,
			PSTRING buffer)
{	
	/*IdsEnable */
	if(RTMPGetKeyParameter("IdsEnable", tmpbuf, 10, buffer, TRUE))
	{						
		if (simple_strtol(tmpbuf, 0, 10) == 1)
			pAd->ApCfg.IdsEnable = TRUE;
		else
			pAd->ApCfg.IdsEnable = FALSE;
						
		DBGPRINT(RT_DEBUG_TRACE, ("IDS is %s\n", pAd->ApCfg.IdsEnable ? "enabled" : "disabled"));
	}

	/*AuthFloodThreshold */
	if(RTMPGetKeyParameter("AuthFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.AuthFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("AuthFloodThreshold = %d\n", pAd->ApCfg.AuthFloodThreshold));
	}

	/*AssocReqFloodThreshold */
	if(RTMPGetKeyParameter("AssocReqFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.AssocReqFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("AssocReqFloodThreshold = %d\n", pAd->ApCfg.AssocReqFloodThreshold));
	}

	/*ReassocReqFloodThreshold */
	if(RTMPGetKeyParameter("ReassocReqFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.ReassocReqFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("ReassocReqFloodThreshold = %d\n", pAd->ApCfg.ReassocReqFloodThreshold));
	}

	/*ProbeReqFloodThreshold */
	if(RTMPGetKeyParameter("ProbeReqFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.ProbeReqFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("ProbeReqFloodThreshold = %d\n", pAd->ApCfg.ProbeReqFloodThreshold));
	}

	/*DisassocFloodThreshold */
	if(RTMPGetKeyParameter("DisassocFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.DisassocFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("DisassocFloodThreshold = %d\n", pAd->ApCfg.DisassocFloodThreshold));
	}

	/*DeauthFloodThreshold */
	if(RTMPGetKeyParameter("DeauthFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.DeauthFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("DeauthFloodThreshold = %d\n", pAd->ApCfg.DeauthFloodThreshold));
	}

	/*EapReqFloodThreshold */
	if(RTMPGetKeyParameter("EapReqFloodThreshold", tmpbuf, 10, buffer, TRUE))
	{						
		pAd->ApCfg.EapReqFloodThreshold = simple_strtol(tmpbuf, 0, 10);
							
		DBGPRINT(RT_DEBUG_TRACE, ("EapReqFloodThreshold = %d\n", pAd->ApCfg.EapReqFloodThreshold));
	}
}

#endif /* IDS_SUPPORT */