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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);
COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
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;
}
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;
}
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);
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;
UCHAR *pPeerWscIe = NULL;
INT PeerWscIeLen = 0;
UCHAR LatchRfChannel = 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;
os_alloc_mem(NULL, &pPeerWscIe, 512);
/* 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));
goto SanityCheck;
}
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));
goto SanityCheck;
}
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)
{
goto SanityCheck;
}
}
#endif /* CONFIG_STA_SUPPORT */
Sanity |= 0x4;
}
else
{
DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_DS_PARM (len=%d)\n",pEid->Len));
goto SanityCheck;
}
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"));
if (pPeerWscIe)
os_free_mem(NULL, pPeerWscIe);
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"));
if (pPeerWscIe)
os_free_mem(NULL, pPeerWscIe);
return FALSE;
}
break;
#ifdef CONFIG_STA_SUPPORT
case IE_TIM:
if(SubType == SUBTYPE_BEACON)
{
if (INFRA_ON(pAd) && NdisEqualMemory(pBssid, pAd->CommonCfg.Bssid, MAC_ADDR_LEN))
{
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)
)
{
if (PeerWscIeLen >= 512)
DBGPRINT(RT_DEBUG_ERROR, ("%s: PeerWscIeLen = %d (>= 512)\n", __FUNCTION__, PeerWscIeLen));
if (pPeerWscIe && (PeerWscIeLen < 512))
{
NdisMoveMemory(pPeerWscIe+PeerWscIeLen, pEid->Octet+4, pEid->Len-4);
PeerWscIeLen += (pEid->Len - 4);
}
}
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)
{
UCHAR MaxSize;
UCHAR MySize = sizeof(EXT_CAP_INFO_ELEMENT);
MaxSize = min(pEid->Len, MySize);
NdisMoveMemory(pExtCapInfo,&pEid->Octet[0], MaxSize);
}
break;
default:
break;
}
Length = Length + 2 + pEid->Len; /* Eid[1] + Len[1]+ content[Len]*/
pEid = (PEID_STRUCT)((UCHAR*)pEid + 2 + pEid->Len);
}
LatchRfChannel = MsgChannel;
if ((pAd->LatchRfRegs.Channel > 14) && ((Sanity & 0x4) == 0))
{
if (CtrlChannel != 0)
*pChannel = CtrlChannel;
else
*pChannel = LatchRfChannel;
Sanity |= 0x4;
}
if (pPeerWscIe && (PeerWscIeLen > 0) && (PeerWscIeLen < 512))
{
UCHAR WscIe[] = {0xdd, 0x00, 0x00, 0x50, 0xF2, 0x04};
Ptr = (PUCHAR) pVIE;
WscIe[1] = PeerWscIeLen + 4;
NdisMoveMemory(Ptr + *LengthVIE, WscIe, 6);
NdisMoveMemory(Ptr + *LengthVIE + 6, pPeerWscIe, PeerWscIeLen);
*LengthVIE += (PeerWscIeLen + 6);
}
SanityCheck:
if (pPeerWscIe)
os_free_mem(NULL, pPeerWscIe);
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