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cmm_sanity.c
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cmm_sanity.c
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/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2010, 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. *
* *
*************************************************************************/
#include "rt_config.h"
extern UCHAR CISCO_OUI[];
extern UCHAR WPA_OUI[];
extern UCHAR RSN_OUI[];
extern UCHAR WME_INFO_ELEM[];
extern UCHAR WME_PARM_ELEM[];
extern UCHAR RALINK_OUI[];
extern UCHAR BROADCOM_OUI[];
extern UCHAR WPS_OUI[];
typedef struct wsc_ie_probreq_data
{
UCHAR ssid[32];
UCHAR macAddr[6];
UCHAR data[2];
} WSC_IE_PROBREQ_DATA;
/*
==========================================================================
Description:
MLME message sanity check
Return:
TRUE if all parameters are OK, FALSE otherwise
IRQL = DISPATCH_LEVEL
==========================================================================
*/
BOOLEAN MlmeAddBAReqSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen,
OUT PUCHAR pAddr2)
{
PMLME_ADDBA_REQ_STRUCT pInfo;
pInfo = (MLME_ADDBA_REQ_STRUCT *)Msg;
if ((MsgLen != sizeof(MLME_ADDBA_REQ_STRUCT)))
{
DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - message lenght not correct.\n"));
return FALSE;
}
if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE))
{
DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - The peer Mac is not associated yet.\n"));
return FALSE;
}
/*
if ((pInfo->BaBufSize > MAX_RX_REORDERBUF) || (pInfo->BaBufSize < 2))
{
DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - Rx Reordering buffer too big or too small\n"));
return FALSE;
}
*/
if ((pInfo->pAddr[0]&0x01) == 0x01)
{
DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - broadcast address not support BA\n"));
return FALSE;
}
return TRUE;
}
/*
==========================================================================
Description:
MLME message sanity check
Return:
TRUE if all parameters are OK, FALSE otherwise
IRQL = DISPATCH_LEVEL
==========================================================================
*/
BOOLEAN MlmeDelBAReqSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen)
{
MLME_DELBA_REQ_STRUCT *pInfo;
pInfo = (MLME_DELBA_REQ_STRUCT *)Msg;
if ((MsgLen != sizeof(MLME_DELBA_REQ_STRUCT)))
{
DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - message lenght not correct.\n"));
return FALSE;
}
if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE))
{
DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - The peer Mac is not associated yet.\n"));
return FALSE;
}
if ((pInfo->TID & 0xf0))
{
DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - The peer TID is incorrect.\n"));
return FALSE;
}
if (NdisEqualMemory(pAd->MacTab.Content[pInfo->Wcid].Addr, pInfo->Addr, MAC_ADDR_LEN) == 0)
{
DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - the peer addr dosen't exist.\n"));
return FALSE;
}
return TRUE;
}
BOOLEAN PeerAddBAReqActionSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *pMsg,
IN ULONG MsgLen,
OUT PUCHAR pAddr2)
{
PFRAME_802_11 pFrame = (PFRAME_802_11)pMsg;
PFRAME_ADDBA_REQ pAddFrame;
pAddFrame = (PFRAME_ADDBA_REQ)(pMsg);
if (MsgLen < (sizeof(FRAME_ADDBA_REQ)))
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request frame length size = %ld incorrect\n", MsgLen));
return FALSE;
}
// we support immediate BA.
#ifdef UNALIGNMENT_SUPPORT
{
BA_PARM tmpBaParm;
NdisMoveMemory((PUCHAR)(&tmpBaParm), (PUCHAR)(&pAddFrame->BaParm), sizeof(BA_PARM));
*(USHORT *)(&tmpBaParm) = cpu2le16(*(USHORT *)(&tmpBaParm));
NdisMoveMemory((PUCHAR)(&pAddFrame->BaParm), (PUCHAR)(&tmpBaParm), sizeof(BA_PARM));
}
#else
*(USHORT *)(&pAddFrame->BaParm) = cpu2le16(*(USHORT *)(&pAddFrame->BaParm));
#endif
pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
pAddFrame->BaStartSeq.word = cpu2le16(pAddFrame->BaStartSeq.word);
if (pAddFrame->BaParm.BAPolicy != IMMED_BA)
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request Ba Policy[%d] not support\n", pAddFrame->BaParm.BAPolicy));
DBGPRINT(RT_DEBUG_ERROR,("ADDBA Request. tid=%x, Bufsize=%x, AMSDUSupported=%x \n", pAddFrame->BaParm.TID, pAddFrame->BaParm.BufSize, pAddFrame->BaParm.AMSDUSupported));
return FALSE;
}
// we support immediate BA.
if (pAddFrame->BaParm.TID &0xfff0)
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request incorrect TID = %d\n", pAddFrame->BaParm.TID));
return FALSE;
}
COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
return TRUE;
}
BOOLEAN PeerAddBARspActionSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *pMsg,
IN ULONG MsgLen)
{
//PFRAME_802_11 pFrame = (PFRAME_802_11)pMsg;
PFRAME_ADDBA_RSP pAddFrame;
pAddFrame = (PFRAME_ADDBA_RSP)(pMsg);
if (MsgLen < (sizeof(FRAME_ADDBA_RSP)))
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBARspActionSanity: ADDBA Response frame length size = %ld incorrect\n", MsgLen));
return FALSE;
}
// we support immediate BA.
#ifdef UNALIGNMENT_SUPPORT
{
BA_PARM tmpBaParm;
NdisMoveMemory((PUCHAR)(&tmpBaParm), (PUCHAR)(&pAddFrame->BaParm), sizeof(BA_PARM));
*(USHORT *)(&tmpBaParm) = cpu2le16(*(USHORT *)(&tmpBaParm));
NdisMoveMemory((PUCHAR)(&pAddFrame->BaParm), (PUCHAR)(&tmpBaParm), sizeof(BA_PARM));
}
#else
*(USHORT *)(&pAddFrame->BaParm) = cpu2le16(*(USHORT *)(&pAddFrame->BaParm));
#endif
pAddFrame->StatusCode = cpu2le16(pAddFrame->StatusCode);
pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
if (pAddFrame->BaParm.BAPolicy != IMMED_BA)
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Response Ba Policy[%d] not support\n", pAddFrame->BaParm.BAPolicy));
return FALSE;
}
// we support immediate BA.
if (pAddFrame->BaParm.TID &0xfff0)
{
DBGPRINT(RT_DEBUG_ERROR,("PeerAddBARspActionSanity: ADDBA Response incorrect TID = %d\n", pAddFrame->BaParm.TID));
return FALSE;
}
return TRUE;
}
BOOLEAN PeerDelBAActionSanity(
IN PRTMP_ADAPTER pAd,
IN UCHAR Wcid,
IN VOID *pMsg,
IN ULONG MsgLen )
{
//PFRAME_802_11 pFrame = (PFRAME_802_11)pMsg;
PFRAME_DELBA_REQ pDelFrame;
if (MsgLen != (sizeof(FRAME_DELBA_REQ)))
return FALSE;
if (Wcid >= MAX_LEN_OF_MAC_TABLE)
return FALSE;
pDelFrame = (PFRAME_DELBA_REQ)(pMsg);
*(USHORT *)(&pDelFrame->DelbaParm) = cpu2le16(*(USHORT *)(&pDelFrame->DelbaParm));
pDelFrame->ReasonCode = cpu2le16(pDelFrame->ReasonCode);
if (pDelFrame->DelbaParm.TID &0xfff0)
return FALSE;
return TRUE;
}
/*
==========================================================================
Description:
MLME message sanity check
Return:
TRUE if all parameters are OK, FALSE otherwise
IRQL = DISPATCH_LEVEL
==========================================================================
*/
BOOLEAN PeerBeaconAndProbeRspSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen,
IN UCHAR MsgChannel,
OUT PUCHAR pAddr2,
OUT PUCHAR pBssid,
OUT CHAR Ssid[],
OUT UCHAR *pSsidLen,
OUT UCHAR *pBssType,
OUT USHORT *pBeaconPeriod,
OUT UCHAR *pChannel,
OUT UCHAR *pNewChannel,
OUT LARGE_INTEGER *pTimestamp,
OUT CF_PARM *pCfParm,
OUT USHORT *pAtimWin,
OUT USHORT *pCapabilityInfo,
OUT UCHAR *pErp,
OUT UCHAR *pDtimCount,
OUT UCHAR *pDtimPeriod,
OUT UCHAR *pBcastFlag,
OUT UCHAR *pMessageToMe,
OUT UCHAR SupRate[],
OUT UCHAR *pSupRateLen,
OUT UCHAR ExtRate[],
OUT UCHAR *pExtRateLen,
OUT UCHAR *pCkipFlag,
OUT UCHAR *pAironetCellPowerLimit,
OUT PEDCA_PARM pEdcaParm,
OUT PQBSS_LOAD_PARM pQbssLoad,
OUT PQOS_CAPABILITY_PARM pQosCapability,
OUT ULONG *pRalinkIe,
OUT UCHAR *pHtCapabilityLen,
#ifdef CONFIG_STA_SUPPORT
OUT UCHAR *pPreNHtCapabilityLen,
#endif // CONFIG_STA_SUPPORT //
OUT HT_CAPABILITY_IE *pHtCapability,
OUT EXT_CAP_INFO_ELEMENT *pExtCapInfo,
OUT UCHAR *AddHtInfoLen,
OUT ADD_HT_INFO_IE *AddHtInfo,
OUT UCHAR *NewExtChannelOffset, // Ht extension channel offset(above or below)
OUT USHORT *LengthVIE,
OUT PNDIS_802_11_VARIABLE_IEs pVIE)
{
UCHAR *Ptr;
#ifdef CONFIG_STA_SUPPORT
UCHAR TimLen;
#endif // CONFIG_STA_SUPPORT //
PFRAME_802_11 pFrame;
PEID_STRUCT pEid;
UCHAR SubType;
UCHAR Sanity;
//UCHAR ECWMin, ECWMax;
//MAC_CSR9_STRUC Csr9;
ULONG Length = 0;
// For some 11a AP which didn't have DS_IE, we use two conditions to decide the channel
// 1. If the AP is 11n enabled, then check the control channel.
// 2. If the AP didn't have any info about channel, use the channel we received this frame as the channel. (May inaccuracy!!)
UCHAR CtrlChannel = 0;
// Add for 3 necessary EID field check
Sanity = 0;
*pAtimWin = 0;
*pErp = 0;
*pDtimCount = 0;
*pDtimPeriod = 0;
*pBcastFlag = 0;
*pMessageToMe = 0;
*pExtRateLen = 0;
*pCkipFlag = 0; // Default of CkipFlag is 0
*pAironetCellPowerLimit = 0xFF; // Default of AironetCellPowerLimit is 0xFF
*LengthVIE = 0; // Set the length of VIE to init value 0
*pHtCapabilityLen = 0; // Set the length of VIE to init value 0
#ifdef CONFIG_STA_SUPPORT
if (pAd->OpMode == OPMODE_STA)
*pPreNHtCapabilityLen = 0; // Set the length of VIE to init value 0
#endif // CONFIG_STA_SUPPORT //
*AddHtInfoLen = 0; // Set the length of VIE to init value 0
NdisZeroMemory(pExtCapInfo, sizeof(EXT_CAP_INFO_ELEMENT));
*pRalinkIe = 0;
*pNewChannel = 0;
*NewExtChannelOffset = 0xff; //Default 0xff means no such IE
pCfParm->bValid = FALSE; // default: no IE_CF found
pQbssLoad->bValid = FALSE; // default: no IE_QBSS_LOAD found
pEdcaParm->bValid = FALSE; // default: no IE_EDCA_PARAMETER found
pQosCapability->bValid = FALSE; // default: no IE_QOS_CAPABILITY found
pFrame = (PFRAME_802_11)Msg;
// get subtype from header
SubType = (UCHAR)pFrame->Hdr.FC.SubType;
// get Addr2 and BSSID from header
COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
COPY_MAC_ADDR(pBssid, pFrame->Hdr.Addr3);
// hex_dump("Beacon", Msg, MsgLen);
Ptr = pFrame->Octet;
Length += LENGTH_802_11;
// get timestamp from payload and advance the pointer
NdisMoveMemory(pTimestamp, Ptr, TIMESTAMP_LEN);
pTimestamp->u.LowPart = cpu2le32(pTimestamp->u.LowPart);
pTimestamp->u.HighPart = cpu2le32(pTimestamp->u.HighPart);
Ptr += TIMESTAMP_LEN;
Length += TIMESTAMP_LEN;
// get beacon interval from payload and advance the pointer
NdisMoveMemory(pBeaconPeriod, Ptr, 2);
Ptr += 2;
Length += 2;
// get capability info from payload and advance the pointer
NdisMoveMemory(pCapabilityInfo, Ptr, 2);
Ptr += 2;
Length += 2;
if (CAP_IS_ESS_ON(*pCapabilityInfo))
*pBssType = BSS_INFRA;
else
*pBssType = BSS_ADHOC;
pEid = (PEID_STRUCT) Ptr;
// get variable fields from payload and advance the pointer
while ((Length + 2 + pEid->Len) <= MsgLen)
{
//
// Secure copy VIE to VarIE[MAX_VIE_LEN] didn't overflow.
//
if ((*LengthVIE + pEid->Len + 2) >= MAX_VIE_LEN)
{
DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - Variable IEs out of resource [len(=%d) > MAX_VIE_LEN(=%d)]\n",
(*LengthVIE + pEid->Len + 2), MAX_VIE_LEN));
break;
}
switch(pEid->Eid)
{
case IE_SSID:
// Already has one SSID EID in this beacon, ignore the second one
if (Sanity & 0x1)
break;
if(pEid->Len <= MAX_LEN_OF_SSID)
{
NdisMoveMemory(Ssid, pEid->Octet, pEid->Len);
*pSsidLen = pEid->Len;
Sanity |= 0x1;
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_SSID (len=%d)\n",pEid->Len));
return FALSE;
}
break;
case IE_SUPP_RATES:
if(pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES)
{
Sanity |= 0x2;
NdisMoveMemory(SupRate, pEid->Octet, pEid->Len);
*pSupRateLen = pEid->Len;
// TODO: 2004-09-14 not a good design here, cause it exclude extra rates
// from ScanTab. We should report as is. And filter out unsupported
// rates in MlmeAux.
// Check against the supported rates
// RTMPCheckRates(pAd, SupRate, pSupRateLen);
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_SUPP_RATES (len=%d)\n",pEid->Len));
return FALSE;
}
break;
case IE_HT_CAP:
if (pEid->Len >= SIZE_HT_CAP_IE) //Note: allow extension.!!
{
NdisMoveMemory(pHtCapability, pEid->Octet, sizeof(HT_CAPABILITY_IE));
*pHtCapabilityLen = SIZE_HT_CAP_IE; // Nnow we only support 26 bytes.
*(USHORT *)(&pHtCapability->HtCapInfo) = cpu2le16(*(USHORT *)(&pHtCapability->HtCapInfo));
#ifdef UNALIGNMENT_SUPPORT
{
EXT_HT_CAP_INFO extHtCapInfo;
NdisMoveMemory((PUCHAR)(&extHtCapInfo), (PUCHAR)(&pHtCapability->ExtHtCapInfo), sizeof(EXT_HT_CAP_INFO));
*(USHORT *)(&extHtCapInfo) = cpu2le16(*(USHORT *)(&extHtCapInfo));
NdisMoveMemory((PUCHAR)(&pHtCapability->ExtHtCapInfo), (PUCHAR)(&extHtCapInfo), sizeof(EXT_HT_CAP_INFO));
}
#else
*(USHORT *)(&pHtCapability->ExtHtCapInfo) = cpu2le16(*(USHORT *)(&pHtCapability->ExtHtCapInfo));
#endif // UNALIGNMENT_SUPPORT //
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
*pPreNHtCapabilityLen = 0; // Now we only support 26 bytes.
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
#endif // CONFIG_STA_SUPPORT //
}
else
{
DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_HT_CAP. pEid->Len = %d\n", pEid->Len));
}
break;
case IE_ADD_HT:
if (pEid->Len >= sizeof(ADD_HT_INFO_IE))
{
// This IE allows extension, but we can ignore extra bytes beyond our knowledge , so only
// copy first sizeof(ADD_HT_INFO_IE)
NdisMoveMemory(AddHtInfo, pEid->Octet, sizeof(ADD_HT_INFO_IE));
*AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
CtrlChannel = AddHtInfo->ControlChan;
*(USHORT *)(&AddHtInfo->AddHtInfo2) = cpu2le16(*(USHORT *)(&AddHtInfo->AddHtInfo2));
*(USHORT *)(&AddHtInfo->AddHtInfo3) = cpu2le16(*(USHORT *)(&AddHtInfo->AddHtInfo3));
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
#endif // CONFIG_STA_SUPPORT //
}
else
{
DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_ADD_HT. \n"));
}
break;
case IE_SECONDARY_CH_OFFSET:
if (pEid->Len == 1)
{
*NewExtChannelOffset = pEid->Octet[0];
}
else
{
DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_SECONDARY_CH_OFFSET. \n"));
}
break;
case IE_FH_PARM:
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity(IE_FH_PARM) \n"));
break;
case IE_DS_PARM:
if(pEid->Len == 1)
{
*pChannel = *pEid->Octet;
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
if (ChannelSanity(pAd, *pChannel) == 0)
{
return FALSE;
}
}
#endif // CONFIG_STA_SUPPORT //
Sanity |= 0x4;
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_DS_PARM (len=%d)\n",pEid->Len));
return FALSE;
}
break;
case IE_CF_PARM:
if(pEid->Len == 6)
{
pCfParm->bValid = TRUE;
pCfParm->CfpCount = pEid->Octet[0];
pCfParm->CfpPeriod = pEid->Octet[1];
pCfParm->CfpMaxDuration = pEid->Octet[2] + 256 * pEid->Octet[3];
pCfParm->CfpDurRemaining = pEid->Octet[4] + 256 * pEid->Octet[5];
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_CF_PARM\n"));
return FALSE;
}
break;
case IE_IBSS_PARM:
if(pEid->Len == 2)
{
NdisMoveMemory(pAtimWin, pEid->Octet, pEid->Len);
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_IBSS_PARM\n"));
return FALSE;
}
break;
#ifdef CONFIG_STA_SUPPORT
case IE_TIM:
if(INFRA_ON(pAd) && SubType == SUBTYPE_BEACON)
{
GetTimBit((PCHAR)pEid, pAd->StaActive.Aid, &TimLen, pBcastFlag, pDtimCount, pDtimPeriod, pMessageToMe);
}
break;
#endif // CONFIG_STA_SUPPORT //
case IE_CHANNEL_SWITCH_ANNOUNCEMENT:
if(pEid->Len == 3)
{
*pNewChannel = pEid->Octet[1]; //extract new channel number
}
break;
// New for WPA
// CCX v2 has the same IE, we need to parse that too
// Wifi WMM use the same IE vale, need to parse that too
// case IE_WPA:
case IE_VENDOR_SPECIFIC:
// Check the OUI version, filter out non-standard usage
if (NdisEqualMemory(pEid->Octet, RALINK_OUI, 3) && (pEid->Len == 7))
{
//*pRalinkIe = pEid->Octet[3];
if (pEid->Octet[3] != 0)
*pRalinkIe = pEid->Octet[3];
else
*pRalinkIe = 0xf0000000; // Set to non-zero value (can't set bit0-2) to represent this is Ralink Chip. So at linkup, we will set ralinkchip flag.
}
#ifdef CONFIG_STA_SUPPORT
#ifdef DOT11_N_SUPPORT
// This HT IE is before IEEE draft set HT IE value.2006-09-28 by Jan.
// Other vendors had production before IE_HT_CAP value is assigned. To backward support those old-firmware AP,
// Check broadcom-defiend pre-802.11nD1.0 OUI for HT related IE, including HT Capatilities IE and HT Information IE
else if ((*pHtCapabilityLen == 0) && NdisEqualMemory(pEid->Octet, PRE_N_HT_OUI, 3) && (pEid->Len >= 4) && (pAd->OpMode == OPMODE_STA))
{
if ((pEid->Octet[3] == OUI_PREN_HT_CAP) && (pEid->Len >= 30) && (*pHtCapabilityLen == 0))
{
NdisMoveMemory(pHtCapability, &pEid->Octet[4], sizeof(HT_CAPABILITY_IE));
*pPreNHtCapabilityLen = SIZE_HT_CAP_IE;
}
if ((pEid->Octet[3] == OUI_PREN_ADD_HT) && (pEid->Len >= 26))
{
NdisMoveMemory(AddHtInfo, &pEid->Octet[4], sizeof(ADD_HT_INFO_IE));
*AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
}
}
#endif // DOT11_N_SUPPORT //
#endif // CONFIG_STA_SUPPORT //
else if (NdisEqualMemory(pEid->Octet, WPA_OUI, 4))
{
// Copy to pVIE which will report to bssid list.
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
else if (NdisEqualMemory(pEid->Octet, WME_PARM_ELEM, 6) && (pEid->Len == 24))
{
PUCHAR ptr;
int i;
// parsing EDCA parameters
pEdcaParm->bValid = TRUE;
pEdcaParm->bQAck = FALSE; // pEid->Octet[0] & 0x10;
pEdcaParm->bQueueRequest = FALSE; // pEid->Octet[0] & 0x20;
pEdcaParm->bTxopRequest = FALSE; // pEid->Octet[0] & 0x40;
pEdcaParm->EdcaUpdateCount = pEid->Octet[6] & 0x0f;
pEdcaParm->bAPSDCapable = (pEid->Octet[6] & 0x80) ? 1 : 0;
ptr = &pEid->Octet[8];
for (i=0; i<4; i++)
{
UCHAR aci = (*ptr & 0x60) >> 5; // b5~6 is AC INDEX
pEdcaParm->bACM[aci] = (((*ptr) & 0x10) == 0x10); // b5 is ACM
pEdcaParm->Aifsn[aci] = (*ptr) & 0x0f; // b0~3 is AIFSN
pEdcaParm->Cwmin[aci] = *(ptr+1) & 0x0f; // b0~4 is Cwmin
pEdcaParm->Cwmax[aci] = *(ptr+1) >> 4; // b5~8 is Cwmax
pEdcaParm->Txop[aci] = *(ptr+2) + 256 * (*(ptr+3)); // in unit of 32-us
ptr += 4; // point to next AC
}
}
else if (NdisEqualMemory(pEid->Octet, WME_INFO_ELEM, 6) && (pEid->Len == 7))
{
// parsing EDCA parameters
pEdcaParm->bValid = TRUE;
pEdcaParm->bQAck = FALSE; // pEid->Octet[0] & 0x10;
pEdcaParm->bQueueRequest = FALSE; // pEid->Octet[0] & 0x20;
pEdcaParm->bTxopRequest = FALSE; // pEid->Octet[0] & 0x40;
pEdcaParm->EdcaUpdateCount = pEid->Octet[6] & 0x0f;
pEdcaParm->bAPSDCapable = (pEid->Octet[6] & 0x80) ? 1 : 0;
// use default EDCA parameter
pEdcaParm->bACM[QID_AC_BE] = 0;
pEdcaParm->Aifsn[QID_AC_BE] = 3;
pEdcaParm->Cwmin[QID_AC_BE] = CW_MIN_IN_BITS;
pEdcaParm->Cwmax[QID_AC_BE] = CW_MAX_IN_BITS;
pEdcaParm->Txop[QID_AC_BE] = 0;
pEdcaParm->bACM[QID_AC_BK] = 0;
pEdcaParm->Aifsn[QID_AC_BK] = 7;
pEdcaParm->Cwmin[QID_AC_BK] = CW_MIN_IN_BITS;
pEdcaParm->Cwmax[QID_AC_BK] = CW_MAX_IN_BITS;
pEdcaParm->Txop[QID_AC_BK] = 0;
pEdcaParm->bACM[QID_AC_VI] = 0;
pEdcaParm->Aifsn[QID_AC_VI] = 2;
pEdcaParm->Cwmin[QID_AC_VI] = CW_MIN_IN_BITS-1;
pEdcaParm->Cwmax[QID_AC_VI] = CW_MAX_IN_BITS;
pEdcaParm->Txop[QID_AC_VI] = 96; // AC_VI: 96*32us ~= 3ms
pEdcaParm->bACM[QID_AC_VO] = 0;
pEdcaParm->Aifsn[QID_AC_VO] = 2;
pEdcaParm->Cwmin[QID_AC_VO] = CW_MIN_IN_BITS-2;
pEdcaParm->Cwmax[QID_AC_VO] = CW_MAX_IN_BITS-1;
pEdcaParm->Txop[QID_AC_VO] = 48; // AC_VO: 48*32us ~= 1.5ms
}
else if (NdisEqualMemory(pEid->Octet, WPS_OUI, 4))
{
// Copy to pVIE which will report to bssid list.
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
break;
case IE_EXT_SUPP_RATES:
if (pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES)
{
NdisMoveMemory(ExtRate, pEid->Octet, pEid->Len);
*pExtRateLen = pEid->Len;
// TODO: 2004-09-14 not a good design here, cause it exclude extra rates
// from ScanTab. We should report as is. And filter out unsupported
// rates in MlmeAux.
// Check against the supported rates
// RTMPCheckRates(pAd, ExtRate, pExtRateLen);
}
break;
case IE_ERP:
if (pEid->Len == 1)
{
*pErp = (UCHAR)pEid->Octet[0];
}
break;
case IE_AIRONET_CKIP:
// 0. Check Aironet IE length, it must be larger or equal to 28
// Cisco AP350 used length as 28
// Cisco AP12XX used length as 30
if (pEid->Len < (CKIP_NEGOTIATION_LENGTH - 2))
break;
// 1. Copy CKIP flag byte to buffer for process
*pCkipFlag = *(pEid->Octet + 8);
break;
case IE_AP_TX_POWER:
// AP Control of Client Transmit Power
//0. Check Aironet IE length, it must be 6
if (pEid->Len != 0x06)
break;
// Get cell power limit in dBm
if (NdisEqualMemory(pEid->Octet, CISCO_OUI, 3) == 1)
*pAironetCellPowerLimit = *(pEid->Octet + 4);
break;
// WPA2 & 802.11i RSN
case IE_RSN:
// There is no OUI for version anymore, check the group cipher OUI before copying
if (RTMPEqualMemory(pEid->Octet + 2, RSN_OUI, 3))
{
// Copy to pVIE which will report to microsoft bssid list.
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
break;
#ifdef CONFIG_STA_SUPPORT
#if defined (EXT_BUILD_CHANNEL_LIST) || defined (RT_CFG80211_SUPPORT)
case IE_COUNTRY:
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
break;
#endif // EXT_BUILD_CHANNEL_LIST //
#endif // CONFIG_STA_SUPPORT //
case IE_QBSS_LOAD:
if (pEid->Len == 5)
{
pQbssLoad->bValid = TRUE;
pQbssLoad->StaNum = pEid->Octet[0] + pEid->Octet[1] * 256;
pQbssLoad->ChannelUtilization = pEid->Octet[2];
pQbssLoad->RemainingAdmissionControl = pEid->Octet[3] + pEid->Octet[4] * 256;
// Copy to pVIE
Ptr = (PUCHAR) pVIE;
NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
*LengthVIE += (pEid->Len + 2);
}
break;
case IE_EXT_CAPABILITY:
if (pEid->Len >= 1)
{
NdisMoveMemory(pExtCapInfo,&pEid->Octet[0], sizeof(EXT_CAP_INFO_ELEMENT) /*4*/);
break;
}
default:
break;
}
Length = Length + 2 + pEid->Len; // Eid[1] + Len[1]+ content[Len]
pEid = (PEID_STRUCT)((UCHAR*)pEid + 2 + pEid->Len);
}
// For some 11a AP. it did not have the channel EID, patch here
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
UCHAR LatchRfChannel = MsgChannel;
if ((pAd->LatchRfRegs.Channel > 14) && ((Sanity & 0x4) == 0))
{
if (CtrlChannel != 0)
*pChannel = CtrlChannel;
else
*pChannel = LatchRfChannel;
Sanity |= 0x4;
}
}
#endif // CONFIG_STA_SUPPORT //
if (Sanity != 0x7)
{
DBGPRINT(RT_DEBUG_LOUD, ("PeerBeaconAndProbeRspSanity - missing field, Sanity=0x%02x\n", Sanity));
return FALSE;
}
else
{
return TRUE;
}
}
#ifdef DOT11N_DRAFT3
/*
==========================================================================
Description:
MLME message sanity check for some IE addressed in 802.11n d3.03.
Return:
TRUE if all parameters are OK, FALSE otherwise
IRQL = DISPATCH_LEVEL
==========================================================================
*/
BOOLEAN PeerBeaconAndProbeRspSanity2(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen,
IN OVERLAP_BSS_SCAN_IE *BssScan,
OUT UCHAR *RegClass)
{
CHAR *Ptr;
PFRAME_802_11 pFrame;
PEID_STRUCT pEid;
ULONG Length = 0;
BOOLEAN brc;
pFrame = (PFRAME_802_11)Msg;
*RegClass = 0;
Ptr = pFrame->Octet;
Length += LENGTH_802_11;
// get timestamp from payload and advance the pointer
Ptr += TIMESTAMP_LEN;
Length += TIMESTAMP_LEN;
// get beacon interval from payload and advance the pointer
Ptr += 2;
Length += 2;
// get capability info from payload and advance the pointer
Ptr += 2;
Length += 2;
pEid = (PEID_STRUCT) Ptr;
brc = FALSE;
RTMPZeroMemory(BssScan, sizeof(OVERLAP_BSS_SCAN_IE));
// get variable fields from payload and advance the pointer
while ((Length + 2 + pEid->Len) <= MsgLen)
{
switch(pEid->Eid)
{
case IE_SUPP_REG_CLASS:
if(pEid->Len > 0)
{
*RegClass = *pEid->Octet;
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_SUPP_REG_CLASS (len=%d)\n",pEid->Len));
}
break;
case IE_OVERLAPBSS_SCAN_PARM:
if (pEid->Len == sizeof(OVERLAP_BSS_SCAN_IE))
{
brc = TRUE;
RTMPMoveMemory(BssScan, pEid->Octet, sizeof(OVERLAP_BSS_SCAN_IE));
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_OVERLAPBSS_SCAN_PARM (len=%d)\n",pEid->Len));
}
break;
case IE_EXT_CHANNEL_SWITCH_ANNOUNCEMENT:
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - IE_EXT_CHANNEL_SWITCH_ANNOUNCEMENT\n"));
break;
}
Length = Length + 2 + pEid->Len; // Eid[1] + Len[1]+ content[Len]
pEid = (PEID_STRUCT)((UCHAR*)pEid + 2 + pEid->Len);
}
return brc;
}
#endif // DOT11N_DRAFT3 //
#if defined(AP_SCAN_SUPPORT) || defined(CONFIG_STA_SUPPORT)
/*
==========================================================================
Description:
MLME message sanity check
Return:
TRUE if all parameters are OK, FALSE otherwise
==========================================================================
*/
BOOLEAN MlmeScanReqSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen,
OUT UCHAR *pBssType,
OUT CHAR Ssid[],
OUT UCHAR *pSsidLen,
OUT UCHAR *pScanType)
{
MLME_SCAN_REQ_STRUCT *Info;
Info = (MLME_SCAN_REQ_STRUCT *)(Msg);
*pBssType = Info->BssType;
*pSsidLen = Info->SsidLen;
NdisMoveMemory(Ssid, Info->Ssid, *pSsidLen);
*pScanType = Info->ScanType;
if ((*pBssType == BSS_INFRA || *pBssType == BSS_ADHOC || *pBssType == BSS_ANY)
&& (*pScanType == SCAN_ACTIVE || *pScanType == SCAN_PASSIVE
#ifdef DOT11_N_SUPPORT
#ifdef DOT11N_DRAFT3
|| (*pScanType == SCAN_2040_BSS_COEXIST)
#endif //DOT11N_DRAFT3 //
#endif // DOT11_N_SUPPORT //
))
{
return TRUE;
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("MlmeScanReqSanity fail - wrong BssType or ScanType\n"));
return FALSE;
}
}
#endif
// IRQL = DISPATCH_LEVEL
UCHAR ChannelSanity(
IN PRTMP_ADAPTER pAd,
IN UCHAR channel)
{
int i;
for (i = 0; i < pAd->ChannelListNum; i ++)
{
if (channel == pAd->ChannelList[i].Channel)
return 1;
}
return 0;
}
/*
==========================================================================
Description:
MLME message sanity check
Return:
TRUE if all parameters are OK, FALSE otherwise
IRQL = DISPATCH_LEVEL
==========================================================================
*/
BOOLEAN PeerDeauthSanity(
IN PRTMP_ADAPTER pAd,
IN VOID *Msg,
IN ULONG MsgLen,
OUT PUCHAR pAddr1,
OUT PUCHAR pAddr2,
OUT PUCHAR pAddr3,
OUT USHORT *pReason)