drivers/staging/rt2860/common/cmm_sanity.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27         Module Name:
  28         sanity.c
  29
  30         Abstract:
  31
  32         Revision History:
  33         Who                     When                    What
  34         --------        ----------              ----------------------------------------------
  35         John Chang  2004-09-01      add WMM support
  36 */
  37 #include "../rt_config.h"
  38
  39
  40 extern UCHAR    CISCO_OUI[];
  41
  42 extern UCHAR    WPA_OUI[];
  43 extern UCHAR    RSN_OUI[];
  44 extern UCHAR    WME_INFO_ELEM[];
  45 extern UCHAR    WME_PARM_ELEM[];
  46 extern UCHAR    Ccx2QosInfo[];
  47 extern UCHAR    RALINK_OUI[];
  48 extern UCHAR    BROADCOM_OUI[];
  49 extern UCHAR    WPS_OUI[];
  50
  51 /*
  52     ==========================================================================
  53     Description:
  54         MLME message sanity check
  55     Return:
  56         TRUE if all parameters are OK, FALSE otherwise
  57
  58         IRQL = DISPATCH_LEVEL
  59
  60     ==========================================================================
  61  */
  62 BOOLEAN MlmeAddBAReqSanity(
  63     IN PRTMP_ADAPTER pAd,
  64     IN VOID *Msg,
  65     IN ULONG MsgLen,
  66     OUT PUCHAR pAddr2)
  67 {
  68     PMLME_ADDBA_REQ_STRUCT   pInfo;
  69
  70     pInfo = (MLME_ADDBA_REQ_STRUCT *)Msg;
  71
  72     if ((MsgLen != sizeof(MLME_ADDBA_REQ_STRUCT)))
  73     {
  74         DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - message lenght not correct.\n"));
  75         return FALSE;
  76     }
  77
  78     if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE))
  79     {
  80         DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - The peer Mac is not associated yet.\n"));
  81         return FALSE;
  82     }
  83
  84     if ((pInfo->pAddr[0]&0x01) == 0x01)
  85     {
  86         DBGPRINT(RT_DEBUG_TRACE, ("MlmeAddBAReqSanity fail - broadcast address not support BA\n"));
  87         return FALSE;
  88     }
  89
  90     return TRUE;
  91 }
  92
  93 /*
  94     ==========================================================================
  95     Description:
  96         MLME message sanity check
  97     Return:
  98         TRUE if all parameters are OK, FALSE otherwise
  99
 100         IRQL = DISPATCH_LEVEL
 101
 102     ==========================================================================
 103  */
 104 BOOLEAN MlmeDelBAReqSanity(
 105     IN PRTMP_ADAPTER pAd,
 106     IN VOID *Msg,
 107     IN ULONG MsgLen)
 108 {
 109         MLME_DELBA_REQ_STRUCT *pInfo;
 110         pInfo = (MLME_DELBA_REQ_STRUCT *)Msg;
 111
 112     if ((MsgLen != sizeof(MLME_DELBA_REQ_STRUCT)))
 113     {
 114         DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - message lenght not correct.\n"));
 115         return FALSE;
 116     }
 117
 118     if ((pInfo->Wcid >= MAX_LEN_OF_MAC_TABLE))
 119     {
 120         DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - The peer Mac is not associated yet.\n"));
 121         return FALSE;
 122     }
 123
 124     if ((pInfo->TID & 0xf0))
 125     {
 126         DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - The peer TID is incorrect.\n"));
 127         return FALSE;
 128     }
 129
 130         if (NdisEqualMemory(pAd->MacTab.Content[pInfo->Wcid].Addr, pInfo->Addr, MAC_ADDR_LEN) == 0)
 131     {
 132         DBGPRINT(RT_DEBUG_ERROR, ("MlmeDelBAReqSanity fail - the peer addr dosen't exist.\n"));
 133         return FALSE;
 134     }
 135
 136     return TRUE;
 137 }
 138
 139 BOOLEAN PeerAddBAReqActionSanity(
 140     IN PRTMP_ADAPTER pAd,
 141     IN VOID *pMsg,
 142     IN ULONG MsgLen,
 143         OUT PUCHAR pAddr2)
 144 {
 145         PFRAME_802_11 pFrame = (PFRAME_802_11)pMsg;
 146         PFRAME_ADDBA_REQ pAddFrame;
 147         pAddFrame = (PFRAME_ADDBA_REQ)(pMsg);
 148         if (MsgLen < (sizeof(FRAME_ADDBA_REQ)))
 149         {
 150                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request frame length size = %ld incorrect\n", MsgLen));
 151                 return FALSE;
 152         }
 153         // we support immediate BA.
 154         *(USHORT *)(&pAddFrame->BaParm) = cpu2le16(*(USHORT *)(&pAddFrame->BaParm));
 155         pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
 156         pAddFrame->BaStartSeq.word = cpu2le16(pAddFrame->BaStartSeq.word);
 157
 158         if (pAddFrame->BaParm.BAPolicy != IMMED_BA)
 159         {
 160                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request Ba Policy[%d] not support\n", pAddFrame->BaParm.BAPolicy));
 161                 DBGPRINT(RT_DEBUG_ERROR,("ADDBA Request. tid=%x, Bufsize=%x, AMSDUSupported=%x \n", pAddFrame->BaParm.TID, pAddFrame->BaParm.BufSize, pAddFrame->BaParm.AMSDUSupported));
 162                 return FALSE;
 163         }
 164
 165         // we support immediate BA.
 166         if (pAddFrame->BaParm.TID &0xfff0)
 167         {
 168                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Request incorrect TID = %d\n", pAddFrame->BaParm.TID));
 169                 return FALSE;
 170         }
 171         COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
 172         return TRUE;
 173 }
 174
 175 BOOLEAN PeerAddBARspActionSanity(
 176     IN PRTMP_ADAPTER pAd,
 177     IN VOID *pMsg,
 178     IN ULONG MsgLen)
 179 {
 180         PFRAME_ADDBA_RSP pAddFrame;
 181
 182         pAddFrame = (PFRAME_ADDBA_RSP)(pMsg);
 183         if (MsgLen < (sizeof(FRAME_ADDBA_RSP)))
 184         {
 185                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBARspActionSanity: ADDBA Response frame length size = %ld incorrect\n", MsgLen));
 186                 return FALSE;
 187         }
 188         // we support immediate BA.
 189         *(USHORT *)(&pAddFrame->BaParm) = cpu2le16(*(USHORT *)(&pAddFrame->BaParm));
 190         pAddFrame->StatusCode = cpu2le16(pAddFrame->StatusCode);
 191         pAddFrame->TimeOutValue = cpu2le16(pAddFrame->TimeOutValue);
 192
 193         if (pAddFrame->BaParm.BAPolicy != IMMED_BA)
 194         {
 195                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBAReqActionSanity: ADDBA Response Ba Policy[%d] not support\n", pAddFrame->BaParm.BAPolicy));
 196                 return FALSE;
 197         }
 198
 199         // we support immediate BA.
 200         if (pAddFrame->BaParm.TID &0xfff0)
 201         {
 202                 DBGPRINT(RT_DEBUG_ERROR,("PeerAddBARspActionSanity: ADDBA Response incorrect TID = %d\n", pAddFrame->BaParm.TID));
 203                 return FALSE;
 204         }
 205         return TRUE;
 206
 207 }
 208
 209 BOOLEAN PeerDelBAActionSanity(
 210     IN PRTMP_ADAPTER pAd,
 211     IN UCHAR Wcid,
 212     IN VOID *pMsg,
 213     IN ULONG MsgLen )
 214 {
 215         //PFRAME_802_11 pFrame = (PFRAME_802_11)pMsg;
 216         PFRAME_DELBA_REQ  pDelFrame;
 217         if (MsgLen != (sizeof(FRAME_DELBA_REQ)))
 218                 return FALSE;
 219
 220         if (Wcid >= MAX_LEN_OF_MAC_TABLE)
 221                 return FALSE;
 222
 223         pDelFrame = (PFRAME_DELBA_REQ)(pMsg);
 224
 225         *(USHORT *)(&pDelFrame->DelbaParm) = cpu2le16(*(USHORT *)(&pDelFrame->DelbaParm));
 226         pDelFrame->ReasonCode = cpu2le16(pDelFrame->ReasonCode);
 227
 228         if (pDelFrame->DelbaParm.TID &0xfff0)
 229                 return FALSE;
 230
 231         return TRUE;
 232 }
 233
 234 /*
 235     ==========================================================================
 236     Description:
 237         MLME message sanity check
 238     Return:
 239         TRUE if all parameters are OK, FALSE otherwise
 240
 241         IRQL = DISPATCH_LEVEL
 242
 243     ==========================================================================
 244  */
 245 BOOLEAN PeerBeaconAndProbeRspSanity(
 246     IN PRTMP_ADAPTER pAd,
 247     IN VOID *Msg,
 248     IN ULONG MsgLen,
 249     IN UCHAR  MsgChannel,
 250     OUT PUCHAR pAddr2,
 251     OUT PUCHAR pBssid,
 252     OUT CHAR Ssid[],
 253     OUT UCHAR *pSsidLen,
 254     OUT UCHAR *pBssType,
 255     OUT USHORT *pBeaconPeriod,
 256     OUT UCHAR *pChannel,
 257     OUT UCHAR *pNewChannel,
 258     OUT LARGE_INTEGER *pTimestamp,
 259     OUT CF_PARM *pCfParm,
 260     OUT USHORT *pAtimWin,
 261     OUT USHORT *pCapabilityInfo,
 262     OUT UCHAR *pErp,
 263     OUT UCHAR *pDtimCount,
 264     OUT UCHAR *pDtimPeriod,
 265     OUT UCHAR *pBcastFlag,
 266     OUT UCHAR *pMessageToMe,
 267     OUT UCHAR SupRate[],
 268     OUT UCHAR *pSupRateLen,
 269     OUT UCHAR ExtRate[],
 270     OUT UCHAR *pExtRateLen,
 271     OUT UCHAR *pCkipFlag,
 272     OUT UCHAR *pAironetCellPowerLimit,
 273     OUT PEDCA_PARM       pEdcaParm,
 274     OUT PQBSS_LOAD_PARM  pQbssLoad,
 275     OUT PQOS_CAPABILITY_PARM pQosCapability,
 276     OUT ULONG *pRalinkIe,
 277     OUT UCHAR            *pHtCapabilityLen,
 278     OUT UCHAR            *pPreNHtCapabilityLen,
 279     OUT HT_CAPABILITY_IE *pHtCapability,
 280         OUT UCHAR                *AddHtInfoLen,
 281         OUT ADD_HT_INFO_IE *AddHtInfo,
 282         OUT UCHAR *NewExtChannelOffset,         // Ht extension channel offset(above or below)
 283     OUT USHORT *LengthVIE,
 284     OUT PNDIS_802_11_VARIABLE_IEs pVIE)
 285 {
 286     UCHAR                               *Ptr;
 287         UCHAR                           TimLen;
 288     PFRAME_802_11               pFrame;
 289     PEID_STRUCT         pEid;
 290     UCHAR                               SubType;
 291     UCHAR                               Sanity;
 292     //UCHAR                             ECWMin, ECWMax;
 293     //MAC_CSR9_STRUC            Csr9;
 294     ULONG                               Length = 0;
 295
 296         // For some 11a AP which didn't have DS_IE, we use two conditions to decide the channel
 297         //      1. If the AP is 11n enabled, then check the control channel.
 298         //      2. If the AP didn't have any info about channel, use the channel we received this frame as the channel. (May inaccuracy!!)
 299         UCHAR                   CtrlChannel = 0;
 300
 301     // Add for 3 necessary EID field check
 302     Sanity = 0;
 303
 304     *pAtimWin = 0;
 305     *pErp = 0;
 306     *pDtimCount = 0;
 307     *pDtimPeriod = 0;
 308     *pBcastFlag = 0;
 309     *pMessageToMe = 0;
 310     *pExtRateLen = 0;
 311     *pCkipFlag = 0;                             // Default of CkipFlag is 0
 312     *pAironetCellPowerLimit = 0xFF;  // Default of AironetCellPowerLimit is 0xFF
 313     *LengthVIE = 0;                                     // Set the length of VIE to init value 0
 314     *pHtCapabilityLen = 0;                                      // Set the length of VIE to init value 0
 315         if (pAd->OpMode == OPMODE_STA)
 316                 *pPreNHtCapabilityLen = 0;                                      // Set the length of VIE to init value 0
 317     *AddHtInfoLen = 0;                                  // Set the length of VIE to init value 0
 318     *pRalinkIe = 0;
 319     *pNewChannel = 0;
 320     *NewExtChannelOffset = 0xff;        //Default 0xff means no such IE
 321     pCfParm->bValid = FALSE;        // default: no IE_CF found
 322     pQbssLoad->bValid = FALSE;      // default: no IE_QBSS_LOAD found
 323     pEdcaParm->bValid = FALSE;      // default: no IE_EDCA_PARAMETER found
 324     pQosCapability->bValid = FALSE; // default: no IE_QOS_CAPABILITY found
 325
 326     pFrame = (PFRAME_802_11)Msg;
 327
 328     // get subtype from header
 329     SubType = (UCHAR)pFrame->Hdr.FC.SubType;
 330
 331     // get Addr2 and BSSID from header
 332     COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
 333     COPY_MAC_ADDR(pBssid, pFrame->Hdr.Addr3);
 334
 335     Ptr = pFrame->Octet;
 336     Length += LENGTH_802_11;
 337
 338     // get timestamp from payload and advance the pointer
 339     NdisMoveMemory(pTimestamp, Ptr, TIMESTAMP_LEN);
 340
 341         pTimestamp->u.LowPart = cpu2le32(pTimestamp->u.LowPart);
 342         pTimestamp->u.HighPart = cpu2le32(pTimestamp->u.HighPart);
 343
 344     Ptr += TIMESTAMP_LEN;
 345     Length += TIMESTAMP_LEN;
 346
 347     // get beacon interval from payload and advance the pointer
 348     NdisMoveMemory(pBeaconPeriod, Ptr, 2);
 349     Ptr += 2;
 350     Length += 2;
 351
 352     // get capability info from payload and advance the pointer
 353     NdisMoveMemory(pCapabilityInfo, Ptr, 2);
 354     Ptr += 2;
 355     Length += 2;
 356
 357     if (CAP_IS_ESS_ON(*pCapabilityInfo))
 358         *pBssType = BSS_INFRA;
 359     else
 360         *pBssType = BSS_ADHOC;
 361
 362     pEid = (PEID_STRUCT) Ptr;
 363
 364     // get variable fields from payload and advance the pointer
 365     while ((Length + 2 + pEid->Len) <= MsgLen)
 366     {
 367         //
 368         // Secure copy VIE to VarIE[MAX_VIE_LEN] didn't overflow.
 369         //
 370         if ((*LengthVIE + pEid->Len + 2) >= MAX_VIE_LEN)
 371         {
 372             DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - Variable IEs out of resource [len(=%d) > MAX_VIE_LEN(=%d)]\n",
 373                     (*LengthVIE + pEid->Len + 2), MAX_VIE_LEN));
 374             break;
 375         }
 376
 377         switch(pEid->Eid)
 378         {
 379             case IE_SSID:
 380                 // Already has one SSID EID in this beacon, ignore the second one
 381                 if (Sanity & 0x1)
 382                     break;
 383                 if(pEid->Len <= MAX_LEN_OF_SSID)
 384                 {
 385                     NdisMoveMemory(Ssid, pEid->Octet, pEid->Len);
 386                     *pSsidLen = pEid->Len;
 387                     Sanity |= 0x1;
 388                 }
 389                 else
 390                 {
 391                     DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_SSID (len=%d)\n",pEid->Len));
 392                     return FALSE;
 393                 }
 394                 break;
 395
 396             case IE_SUPP_RATES:
 397                 if(pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES)
 398                 {
 399                     Sanity |= 0x2;
 400                     NdisMoveMemory(SupRate, pEid->Octet, pEid->Len);
 401                     *pSupRateLen = pEid->Len;
 402
 403                     // TODO: 2004-09-14 not a good design here, cause it exclude extra rates
 404                     // from ScanTab. We should report as is. And filter out unsupported
 405                     // rates in MlmeAux.
 406                     // Check against the supported rates
 407                     // RTMPCheckRates(pAd, SupRate, pSupRateLen);
 408                 }
 409                 else
 410                 {
 411                     DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_SUPP_RATES (len=%d)\n",pEid->Len));
 412                     return FALSE;
 413                 }
 414                 break;
 415
 416             case IE_HT_CAP:
 417                         if (pEid->Len >= SIZE_HT_CAP_IE)  //Note: allow extension.!!
 418                         {
 419                                 NdisMoveMemory(pHtCapability, pEid->Octet, sizeof(HT_CAPABILITY_IE));
 420                                 *pHtCapabilityLen = SIZE_HT_CAP_IE;     // Nnow we only support 26 bytes.
 421
 422                                 *(USHORT *)(&pHtCapability->HtCapInfo) = cpu2le16(*(USHORT *)(&pHtCapability->HtCapInfo));
 423                                 *(USHORT *)(&pHtCapability->ExtHtCapInfo) = cpu2le16(*(USHORT *)(&pHtCapability->ExtHtCapInfo));
 424
 425                                 {
 426                                         *pPreNHtCapabilityLen = 0;      // Nnow we only support 26 bytes.
 427
 428                                         Ptr = (PUCHAR) pVIE;
 429                                         NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
 430                                         *LengthVIE += (pEid->Len + 2);
 431                                 }
 432                         }
 433                         else
 434                         {
 435                                 DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_HT_CAP. pEid->Len = %d\n", pEid->Len));
 436                         }
 437
 438                 break;
 439             case IE_ADD_HT:
 440                         if (pEid->Len >= sizeof(ADD_HT_INFO_IE))
 441                         {
 442                                 // This IE allows extension, but we can ignore extra bytes beyond our knowledge , so only
 443                                 // copy first sizeof(ADD_HT_INFO_IE)
 444                                 NdisMoveMemory(AddHtInfo, pEid->Octet, sizeof(ADD_HT_INFO_IE));
 445                                 *AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
 446
 447                                 CtrlChannel = AddHtInfo->ControlChan;
 448
 449                                 *(USHORT *)(&AddHtInfo->AddHtInfo2) = cpu2le16(*(USHORT *)(&AddHtInfo->AddHtInfo2));
 450                                 *(USHORT *)(&AddHtInfo->AddHtInfo3) = cpu2le16(*(USHORT *)(&AddHtInfo->AddHtInfo3));
 451
 452                                 {
 453                                         Ptr = (PUCHAR) pVIE;
 454                                         NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
 455                                         *LengthVIE += (pEid->Len + 2);
 456                                 }
 457                         }
 458                         else
 459                         {
 460                                 DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_ADD_HT. \n"));
 461                         }
 462
 463                 break;
 464             case IE_SECONDARY_CH_OFFSET:
 465                         if (pEid->Len == 1)
 466                         {
 467                                 *NewExtChannelOffset = pEid->Octet[0];
 468                         }
 469                         else
 470                         {
 471                                 DBGPRINT(RT_DEBUG_WARN, ("PeerBeaconAndProbeRspSanity - wrong IE_SECONDARY_CH_OFFSET. \n"));
 472                         }
 473
 474                 break;
 475             case IE_FH_PARM:
 476                 DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity(IE_FH_PARM) \n"));
 477                 break;
 478
 479             case IE_DS_PARM:
 480                 if(pEid->Len == 1)
 481                 {
 482                     *pChannel = *pEid->Octet;
 483
 484                                         {
 485                                                 if (ChannelSanity(pAd, *pChannel) == 0)
 486                                                 {
 487
 488                                                         return FALSE;
 489                                                 }
 490                                         }
 491
 492                     Sanity |= 0x4;
 493                 }
 494                 else
 495                 {
 496                     DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_DS_PARM (len=%d)\n",pEid->Len));
 497                     return FALSE;
 498                 }
 499                 break;
 500
 501             case IE_CF_PARM:
 502                 if(pEid->Len == 6)
 503                 {
 504                     pCfParm->bValid = TRUE;
 505                     pCfParm->CfpCount = pEid->Octet[0];
 506                     pCfParm->CfpPeriod = pEid->Octet[1];
 507                     pCfParm->CfpMaxDuration = pEid->Octet[2] + 256 * pEid->Octet[3];
 508                     pCfParm->CfpDurRemaining = pEid->Octet[4] + 256 * pEid->Octet[5];
 509                 }
 510                 else
 511                 {
 512                     DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_CF_PARM\n"));
 513                     return FALSE;
 514                 }
 515                 break;
 516
 517             case IE_IBSS_PARM:
 518                 if(pEid->Len == 2)
 519                 {
 520                     NdisMoveMemory(pAtimWin, pEid->Octet, pEid->Len);
 521                 }
 522                 else
 523                 {
 524                     DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAndProbeRspSanity - wrong IE_IBSS_PARM\n"));
 525                     return FALSE;
 526                 }
 527                 break;
 528
 529             case IE_TIM:
 530                 if(INFRA_ON(pAd) && SubType == SUBTYPE_BEACON)
 531                 {
 532                     GetTimBit((PCHAR)pEid, pAd->StaActive.Aid, &TimLen, pBcastFlag, pDtimCount, pDtimPeriod, pMessageToMe);
 533                 }
 534                 break;
 535             case IE_CHANNEL_SWITCH_ANNOUNCEMENT:
 536                 if(pEid->Len == 3)
 537                 {
 538                         *pNewChannel = pEid->Octet[1];  //extract new channel number
 539                 }
 540                 break;
 541
 542             // New for WPA
 543             // CCX v2 has the same IE, we need to parse that too
 544             // Wifi WMM use the same IE vale, need to parse that too
 545             // case IE_WPA:
 546             case IE_VENDOR_SPECIFIC:
 547                 // Check Broadcom/Atheros 802.11n OUI version, for HT Capability IE.
 548                 // This HT IE is before IEEE draft set HT IE value.2006-09-28 by Jan.
 549                 /*if (NdisEqualMemory(pEid->Octet, BROADCOM_OUI, 3) && (pEid->Len >= 4))
 550                 {
 551                         if ((pEid->Octet[3] == OUI_BROADCOM_HT) && (pEid->Len >= 30))
 552                         {
 553                                 {
 554                                         NdisMoveMemory(pHtCapability, &pEid->Octet[4], sizeof(HT_CAPABILITY_IE));
 555                                         *pHtCapabilityLen = SIZE_HT_CAP_IE;     // Nnow we only support 26 bytes.
 556                                 }
 557                         }
 558                         if ((pEid->Octet[3] == OUI_BROADCOM_HT) && (pEid->Len >= 26))
 559                         {
 560                                 {
 561                                         NdisMoveMemory(AddHtInfo, &pEid->Octet[4], sizeof(ADD_HT_INFO_IE));
 562                                         *AddHtInfoLen = SIZE_ADD_HT_INFO_IE;    // Nnow we only support 26 bytes.
 563                                 }
 564                         }
 565                 }
 566                                 */
 567                 // Check the OUI version, filter out non-standard usage
 568                 if (NdisEqualMemory(pEid->Octet, RALINK_OUI, 3) && (pEid->Len == 7))
 569                 {
 570                     //*pRalinkIe = pEid->Octet[3];
 571                     if (pEid->Octet[3] != 0)
 572                                         *pRalinkIe = pEid->Octet[3];
 573                                 else
 574                                         *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.
 575                 }
 576                 // This HT IE is before IEEE draft set HT IE value.2006-09-28 by Jan.
 577
 578                 // Other vendors had production before IE_HT_CAP value is assigned. To backward support those old-firmware AP,
 579                 // Check broadcom-defiend pre-802.11nD1.0 OUI for HT related IE, including HT Capatilities IE and HT Information IE
 580                 else if ((*pHtCapabilityLen == 0) && NdisEqualMemory(pEid->Octet, PRE_N_HT_OUI, 3) && (pEid->Len >= 4) && (pAd->OpMode == OPMODE_STA))
 581                 {
 582                     if ((pEid->Octet[3] == OUI_PREN_HT_CAP) && (pEid->Len >= 30) && (*pHtCapabilityLen == 0))
 583                     {
 584                         NdisMoveMemory(pHtCapability, &pEid->Octet[4], sizeof(HT_CAPABILITY_IE));
 585                         *pPreNHtCapabilityLen = SIZE_HT_CAP_IE;
 586                     }
 587
 588                     if ((pEid->Octet[3] == OUI_PREN_ADD_HT) && (pEid->Len >= 26))
 589                     {
 590                         NdisMoveMemory(AddHtInfo, &pEid->Octet[4], sizeof(ADD_HT_INFO_IE));
 591                         *AddHtInfoLen = SIZE_ADD_HT_INFO_IE;
 592                     }
 593                 }
 594                 else if (NdisEqualMemory(pEid->Octet, WPA_OUI, 4))
 595                 {
 596                     // Copy to pVIE which will report to microsoft bssid list.
 597                     Ptr = (PUCHAR) pVIE;
 598                     NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
 599                     *LengthVIE += (pEid->Len + 2);
 600                 }
 601                 else if (NdisEqualMemory(pEid->Octet, WME_PARM_ELEM, 6) && (pEid->Len == 24))
 602                 {
 603                     PUCHAR ptr;
 604                     int i;
 605
 606                     // parsing EDCA parameters
 607                     pEdcaParm->bValid          = TRUE;
 608                     pEdcaParm->bQAck           = FALSE; // pEid->Octet[0] & 0x10;
 609                     pEdcaParm->bQueueRequest   = FALSE; // pEid->Octet[0] & 0x20;
 610                     pEdcaParm->bTxopRequest    = FALSE; // pEid->Octet[0] & 0x40;
 611                     pEdcaParm->EdcaUpdateCount = pEid->Octet[6] & 0x0f;
 612                     pEdcaParm->bAPSDCapable    = (pEid->Octet[6] & 0x80) ? 1 : 0;
 613                     ptr = &pEid->Octet[8];
 614                     for (i=0; i<4; i++)
 615                     {
 616                         UCHAR aci = (*ptr & 0x60) >> 5; // b5~6 is AC INDEX
 617                         pEdcaParm->bACM[aci]  = (((*ptr) & 0x10) == 0x10);   // b5 is ACM
 618                         pEdcaParm->Aifsn[aci] = (*ptr) & 0x0f;               // b0~3 is AIFSN
 619                         pEdcaParm->Cwmin[aci] = *(ptr+1) & 0x0f;             // b0~4 is Cwmin
 620                         pEdcaParm->Cwmax[aci] = *(ptr+1) >> 4;               // b5~8 is Cwmax
 621                         pEdcaParm->Txop[aci]  = *(ptr+2) + 256 * (*(ptr+3)); // in unit of 32-us
 622                         ptr += 4; // point to next AC
 623                     }
 624                 }
 625                 else if (NdisEqualMemory(pEid->Octet, WME_INFO_ELEM, 6) && (pEid->Len == 7))
 626                 {
 627                     // parsing EDCA parameters
 628                     pEdcaParm->bValid          = TRUE;
 629                     pEdcaParm->bQAck           = FALSE; // pEid->Octet[0] & 0x10;
 630                     pEdcaParm->bQueueRequest   = FALSE; // pEid->Octet[0] & 0x20;
 631                     pEdcaParm->bTxopRequest    = FALSE; // pEid->Octet[0] & 0x40;
 632                     pEdcaParm->EdcaUpdateCount = pEid->Octet[6] & 0x0f;
 633                     pEdcaParm->bAPSDCapable    = (pEid->Octet[6] & 0x80) ? 1 : 0;
 634
 635                     // use default EDCA parameter
 636                     pEdcaParm->bACM[QID_AC_BE]  = 0;
 637                     pEdcaParm->Aifsn[QID_AC_BE] = 3;
 638                     pEdcaParm->Cwmin[QID_AC_BE] = CW_MIN_IN_BITS;
 639                     pEdcaParm->Cwmax[QID_AC_BE] = CW_MAX_IN_BITS;
 640                     pEdcaParm->Txop[QID_AC_BE]  = 0;
 641
 642                     pEdcaParm->bACM[QID_AC_BK]  = 0;
 643                     pEdcaParm->Aifsn[QID_AC_BK] = 7;
 644                     pEdcaParm->Cwmin[QID_AC_BK] = CW_MIN_IN_BITS;
 645                     pEdcaParm->Cwmax[QID_AC_BK] = CW_MAX_IN_BITS;
 646                     pEdcaParm->Txop[QID_AC_BK]  = 0;
 647
 648                     pEdcaParm->bACM[QID_AC_VI]  = 0;
 649                     pEdcaParm->Aifsn[QID_AC_VI] = 2;
 650                     pEdcaParm->Cwmin[QID_AC_VI] = CW_MIN_IN_BITS-1;
 651                     pEdcaParm->Cwmax[QID_AC_VI] = CW_MAX_IN_BITS;
 652                     pEdcaParm->Txop[QID_AC_VI]  = 96;   // AC_VI: 96*32us ~= 3ms
 653
 654                     pEdcaParm->bACM[QID_AC_VO]  = 0;
 655                     pEdcaParm->Aifsn[QID_AC_VO] = 2;
 656                     pEdcaParm->Cwmin[QID_AC_VO] = CW_MIN_IN_BITS-2;
 657                     pEdcaParm->Cwmax[QID_AC_VO] = CW_MAX_IN_BITS-1;
 658                     pEdcaParm->Txop[QID_AC_VO]  = 48;   // AC_VO: 48*32us ~= 1.5ms
 659                 }
 660
 661
 662                 break;
 663
 664             case IE_EXT_SUPP_RATES:
 665                 if (pEid->Len <= MAX_LEN_OF_SUPPORTED_RATES)
 666                 {
 667                     NdisMoveMemory(ExtRate, pEid->Octet, pEid->Len);
 668                     *pExtRateLen = pEid->Len;
 669
 670                     // TODO: 2004-09-14 not a good design here, cause it exclude extra rates
 671                     // from ScanTab. We should report as is. And filter out unsupported
 672                     // rates in MlmeAux.
 673                     // Check against the supported rates
 674                     // RTMPCheckRates(pAd, ExtRate, pExtRateLen);
 675                 }
 676                 break;
 677
 678             case IE_ERP:
 679                 if (pEid->Len == 1)
 680                 {
 681                     *pErp = (UCHAR)pEid->Octet[0];
 682                 }
 683                 break;
 684
 685             case IE_AIRONET_CKIP:
 686                 // 0. Check Aironet IE length, it must be larger or equal to 28
 687                 // Cisco AP350 used length as 28
 688                 // Cisco AP12XX used length as 30
 689                 if (pEid->Len < (CKIP_NEGOTIATION_LENGTH - 2))
 690                     break;
 691
 692                 // 1. Copy CKIP flag byte to buffer for process
 693                 *pCkipFlag = *(pEid->Octet + 8);
 694                 break;
 695
 696             case IE_AP_TX_POWER:
 697                 // AP Control of Client Transmit Power
 698                 //0. Check Aironet IE length, it must be 6
 699                 if (pEid->Len != 0x06)
 700                     break;
 701
 702                 // Get cell power limit in dBm
 703                 if (NdisEqualMemory(pEid->Octet, CISCO_OUI, 3) == 1)
 704                     *pAironetCellPowerLimit = *(pEid->Octet + 4);
 705                 break;
 706
 707             // WPA2 & 802.11i RSN
 708             case IE_RSN:
 709                 // There is no OUI for version anymore, check the group cipher OUI before copying
 710                 if (RTMPEqualMemory(pEid->Octet + 2, RSN_OUI, 3))
 711                 {
 712                     // Copy to pVIE which will report to microsoft bssid list.
 713                     Ptr = (PUCHAR) pVIE;
 714                     NdisMoveMemory(Ptr + *LengthVIE, &pEid->Eid, pEid->Len + 2);
 715                     *LengthVIE += (pEid->Len + 2);
 716                 }
 717                 break;
 718
 719             default:
 720                 break;
 721         }
 722
 723         Length = Length + 2 + pEid->Len;  // Eid[1] + Len[1]+ content[Len]
 724         pEid = (PEID_STRUCT)((UCHAR*)pEid + 2 + pEid->Len);
 725     }
 726
 727     // For some 11a AP. it did not have the channel EID, patch here
 728         {
 729                 UCHAR LatchRfChannel = MsgChannel;
 730                 if ((pAd->LatchRfRegs.Channel > 14) && ((Sanity & 0x4) == 0))
 731                 {
 732                         if (CtrlChannel != 0)
 733                                 *pChannel = CtrlChannel;
 734                         else
 735                                 *pChannel = LatchRfChannel;
 736                         Sanity |= 0x4;
 737                 }
 738         }
 739
 740         if (Sanity != 0x7)
 741         {
 742                 DBGPRINT(RT_DEBUG_LOUD, ("PeerBeaconAndProbeRspSanity - missing field, Sanity=0x%02x\n", Sanity));
 743                 return FALSE;
 744         }
 745         else
 746         {
 747                 return TRUE;
 748         }
 749
 750 }
 751
 752 /*
 753     ==========================================================================
 754     Description:
 755         MLME message sanity check
 756     Return:
 757         TRUE if all parameters are OK, FALSE otherwise
 758     ==========================================================================
 759  */
 760 BOOLEAN MlmeScanReqSanity(
 761         IN PRTMP_ADAPTER pAd,
 762         IN VOID *Msg,
 763         IN ULONG MsgLen,
 764         OUT UCHAR *pBssType,
 765         OUT CHAR Ssid[],
 766         OUT UCHAR *pSsidLen,
 767         OUT UCHAR *pScanType)
 768 {
 769         MLME_SCAN_REQ_STRUCT *Info;
 770
 771         Info = (MLME_SCAN_REQ_STRUCT *)(Msg);
 772         *pBssType = Info->BssType;
 773         *pSsidLen = Info->SsidLen;
 774         NdisMoveMemory(Ssid, Info->Ssid, *pSsidLen);
 775         *pScanType = Info->ScanType;
 776
 777         if ((*pBssType == BSS_INFRA || *pBssType == BSS_ADHOC || *pBssType == BSS_ANY)
 778                 && (*pScanType == SCAN_ACTIVE || *pScanType == SCAN_PASSIVE
 779                 ))
 780         {
 781                 return TRUE;
 782         }
 783         else
 784         {
 785                 DBGPRINT(RT_DEBUG_TRACE, ("MlmeScanReqSanity fail - wrong BssType or ScanType\n"));
 786                 return FALSE;
 787         }
 788 }
 789
 790 // IRQL = DISPATCH_LEVEL
 791 UCHAR ChannelSanity(
 792     IN PRTMP_ADAPTER pAd,
 793     IN UCHAR channel)
 794 {
 795     int i;
 796
 797     for (i = 0; i < pAd->ChannelListNum; i ++)
 798     {
 799         if (channel == pAd->ChannelList[i].Channel)
 800             return 1;
 801     }
 802     return 0;
 803 }
 804
 805 /*
 806     ==========================================================================
 807     Description:
 808         MLME message sanity check
 809     Return:
 810         TRUE if all parameters are OK, FALSE otherwise
 811
 812         IRQL = DISPATCH_LEVEL
 813
 814     ==========================================================================
 815  */
 816 BOOLEAN PeerDeauthSanity(
 817     IN PRTMP_ADAPTER pAd,
 818     IN VOID *Msg,
 819     IN ULONG MsgLen,
 820     OUT PUCHAR pAddr2,
 821     OUT USHORT *pReason)
 822 {
 823     PFRAME_802_11 pFrame = (PFRAME_802_11)Msg;
 824
 825     COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
 826     NdisMoveMemory(pReason, &pFrame->Octet[0], 2);
 827
 828     return TRUE;
 829 }
 830
 831 /*
 832     ==========================================================================
 833     Description:
 834         MLME message sanity check
 835     Return:
 836         TRUE if all parameters are OK, FALSE otherwise
 837
 838         IRQL = DISPATCH_LEVEL
 839
 840     ==========================================================================
 841  */
 842 BOOLEAN PeerAuthSanity(
 843     IN PRTMP_ADAPTER pAd,
 844     IN VOID *Msg,
 845     IN ULONG MsgLen,
 846     OUT PUCHAR pAddr,
 847     OUT USHORT *pAlg,
 848     OUT USHORT *pSeq,
 849     OUT USHORT *pStatus,
 850     CHAR *pChlgText)
 851 {
 852     PFRAME_802_11 pFrame = (PFRAME_802_11)Msg;
 853
 854     COPY_MAC_ADDR(pAddr,   pFrame->Hdr.Addr2);
 855     NdisMoveMemory(pAlg,    &pFrame->Octet[0], 2);
 856     NdisMoveMemory(pSeq,    &pFrame->Octet[2], 2);
 857     NdisMoveMemory(pStatus, &pFrame->Octet[4], 2);
 858
 859     if (*pAlg == AUTH_MODE_OPEN)
 860     {
 861         if (*pSeq == 1 || *pSeq == 2)
 862         {
 863             return TRUE;
 864         }
 865         else
 866         {
 867             DBGPRINT(RT_DEBUG_TRACE, ("PeerAuthSanity fail - wrong Seg#\n"));
 868             return FALSE;
 869         }
 870     }
 871     else if (*pAlg == AUTH_MODE_KEY)
 872     {
 873         if (*pSeq == 1 || *pSeq == 4)
 874         {
 875             return TRUE;
 876         }
 877         else if (*pSeq == 2 || *pSeq == 3)
 878         {
 879             NdisMoveMemory(pChlgText, &pFrame->Octet[8], CIPHER_TEXT_LEN);
 880             return TRUE;
 881         }
 882         else
 883         {
 884             DBGPRINT(RT_DEBUG_TRACE, ("PeerAuthSanity fail - wrong Seg#\n"));
 885             return FALSE;
 886         }
 887     }
 888     else
 889     {
 890         DBGPRINT(RT_DEBUG_TRACE, ("PeerAuthSanity fail - wrong algorithm\n"));
 891         return FALSE;
 892     }
 893 }
 894
 895 /*
 896     ==========================================================================
 897     Description:
 898         MLME message sanity check
 899     Return:
 900         TRUE if all parameters are OK, FALSE otherwise
 901     ==========================================================================
 902  */
 903 BOOLEAN MlmeAuthReqSanity(
 904     IN PRTMP_ADAPTER pAd,
 905     IN VOID *Msg,
 906     IN ULONG MsgLen,
 907     OUT PUCHAR pAddr,
 908     OUT ULONG *pTimeout,
 909     OUT USHORT *pAlg)
 910 {
 911     MLME_AUTH_REQ_STRUCT *pInfo;
 912
 913     pInfo  = (MLME_AUTH_REQ_STRUCT *)Msg;
 914     COPY_MAC_ADDR(pAddr, pInfo->Addr);
 915     *pTimeout = pInfo->Timeout;
 916     *pAlg = pInfo->Alg;
 917
 918     if (((*pAlg == AUTH_MODE_KEY) ||(*pAlg == AUTH_MODE_OPEN)
 919         ) &&
 920         ((*pAddr & 0x01) == 0))
 921     {
 922         return TRUE;
 923     }
 924     else
 925     {
 926         DBGPRINT(RT_DEBUG_TRACE, ("MlmeAuthReqSanity fail - wrong algorithm\n"));
 927         return FALSE;
 928     }
 929 }
 930
 931 /*
 932     ==========================================================================
 933     Description:
 934         MLME message sanity check
 935     Return:
 936         TRUE if all parameters are OK, FALSE otherwise
 937
 938         IRQL = DISPATCH_LEVEL
 939
 940     ==========================================================================
 941  */
 942 BOOLEAN MlmeAssocReqSanity(
 943     IN PRTMP_ADAPTER pAd,
 944     IN VOID *Msg,
 945     IN ULONG MsgLen,
 946     OUT PUCHAR pApAddr,
 947     OUT USHORT *pCapabilityInfo,
 948     OUT ULONG *pTimeout,
 949     OUT USHORT *pListenIntv)
 950 {
 951     MLME_ASSOC_REQ_STRUCT *pInfo;
 952
 953     pInfo = (MLME_ASSOC_REQ_STRUCT *)Msg;
 954     *pTimeout = pInfo->Timeout;                             // timeout
 955     COPY_MAC_ADDR(pApAddr, pInfo->Addr);                   // AP address
 956     *pCapabilityInfo = pInfo->CapabilityInfo;               // capability info
 957     *pListenIntv = pInfo->ListenIntv;
 958
 959     return TRUE;
 960 }
 961
 962 /*
 963     ==========================================================================
 964     Description:
 965         MLME message sanity check
 966     Return:
 967         TRUE if all parameters are OK, FALSE otherwise
 968
 969         IRQL = DISPATCH_LEVEL
 970
 971     ==========================================================================
 972  */
 973 BOOLEAN PeerDisassocSanity(
 974     IN PRTMP_ADAPTER pAd,
 975     IN VOID *Msg,
 976     IN ULONG MsgLen,
 977     OUT PUCHAR pAddr2,
 978     OUT USHORT *pReason)
 979 {
 980     PFRAME_802_11 pFrame = (PFRAME_802_11)Msg;
 981
 982     COPY_MAC_ADDR(pAddr2, pFrame->Hdr.Addr2);
 983     NdisMoveMemory(pReason, &pFrame->Octet[0], 2);
 984
 985     return TRUE;
 986 }
 987
 988 /*
 989         ========================================================================
 990         Routine Description:
 991                 Sanity check NetworkType (11b, 11g or 11a)
 992
 993         Arguments:
 994                 pBss - Pointer to BSS table.
 995
 996         Return Value:
 997         Ndis802_11DS .......(11b)
 998         Ndis802_11OFDM24....(11g)
 999         Ndis802_11OFDM5.....(11a)
1000
1001         IRQL = DISPATCH_LEVEL
1002
1003         ========================================================================
1004 */
1005 NDIS_802_11_NETWORK_TYPE NetworkTypeInUseSanity(
1006     IN PBSS_ENTRY pBss)
1007 {
1008         NDIS_802_11_NETWORK_TYPE        NetWorkType;
1009         UCHAR                                           rate, i;
1010
1011         NetWorkType = Ndis802_11DS;
1012
1013         if (pBss->Channel <= 14)
1014         {
1015                 //
1016                 // First check support Rate.
1017                 //
1018                 for (i = 0; i < pBss->SupRateLen; i++)
1019                 {
1020                         rate = pBss->SupRate[i] & 0x7f; // Mask out basic rate set bit
1021                         if ((rate == 2) || (rate == 4) || (rate == 11) || (rate == 22))
1022                         {
1023                                 continue;
1024                         }
1025                         else
1026                         {
1027                                 //
1028                                 // Otherwise (even rate > 108) means Ndis802_11OFDM24
1029                                 //
1030                                 NetWorkType = Ndis802_11OFDM24;
1031                                 break;
1032                         }
1033                 }
1034
1035                 //
1036                 // Second check Extend Rate.
1037                 //
1038                 if (NetWorkType != Ndis802_11OFDM24)
1039                 {
1040                         for (i = 0; i < pBss->ExtRateLen; i++)
1041                         {
1042                                 rate = pBss->SupRate[i] & 0x7f; // Mask out basic rate set bit
1043                                 if ((rate == 2) || (rate == 4) || (rate == 11) || (rate == 22))
1044                                 {
1045                                         continue;
1046                                 }
1047                                 else
1048                                 {
1049                                         //
1050                                         // Otherwise (even rate > 108) means Ndis802_11OFDM24
1051                                         //
1052                                         NetWorkType = Ndis802_11OFDM24;
1053                                         break;
1054                                 }
1055                         }
1056                 }
1057         }
1058         else
1059         {
1060                 NetWorkType = Ndis802_11OFDM5;
1061         }
1062
1063     if (pBss->HtCapabilityLen != 0)
1064     {
1065         if (NetWorkType == Ndis802_11OFDM5)
1066             NetWorkType = Ndis802_11OFDM5_N;
1067         else
1068             NetWorkType = Ndis802_11OFDM24_N;
1069     }
1070
1071         return NetWorkType;
1072 }
1073
1074 /*
1075     ==========================================================================
1076     Description:
1077         Check the validity of the received EAPoL frame
1078     Return:
1079         TRUE if all parameters are OK,
1080         FALSE otherwise
1081     ==========================================================================
1082  */
1083 BOOLEAN PeerWpaMessageSanity(
1084     IN  PRTMP_ADAPTER           pAd,
1085     IN  PEAPOL_PACKET           pMsg,
1086     IN  ULONG                           MsgLen,
1087     IN  UCHAR                           MsgType,
1088     IN  MAC_TABLE_ENTRY         *pEntry)
1089 {
1090         UCHAR                   mic[LEN_KEY_DESC_MIC], digest[80], KEYDATA[MAX_LEN_OF_RSNIE];
1091         BOOLEAN                 bReplayDiff = FALSE;
1092         BOOLEAN                 bWPA2 = FALSE;
1093         KEY_INFO                EapolKeyInfo;
1094         UCHAR                   GroupKeyIndex = 0;
1095
1096
1097         NdisZeroMemory(mic, sizeof(mic));
1098         NdisZeroMemory(digest, sizeof(digest));
1099         NdisZeroMemory(KEYDATA, sizeof(KEYDATA));
1100         NdisZeroMemory((PUCHAR)&EapolKeyInfo, sizeof(EapolKeyInfo));
1101
1102         NdisMoveMemory((PUCHAR)&EapolKeyInfo, (PUCHAR)&pMsg->KeyDesc.KeyInfo, sizeof(KEY_INFO));
1103
1104         *((USHORT *)&EapolKeyInfo) = cpu2le16(*((USHORT *)&EapolKeyInfo));
1105
1106         // Choose WPA2 or not
1107         if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2) || (pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK))
1108                 bWPA2 = TRUE;
1109
1110         // 0. Check MsgType
1111         if ((MsgType > EAPOL_GROUP_MSG_2) || (MsgType < EAPOL_PAIR_MSG_1))
1112         {
1113                 DBGPRINT(RT_DEBUG_ERROR, ("The message type is invalid(%d)! \n", MsgType));
1114                 return FALSE;
1115         }
1116
1117         // 1. Replay counter check
1118         if (MsgType == EAPOL_PAIR_MSG_1 || MsgType == EAPOL_PAIR_MSG_3 || MsgType == EAPOL_GROUP_MSG_1) // For supplicant
1119     {
1120         // First validate replay counter, only accept message with larger replay counter.
1121                 // Let equal pass, some AP start with all zero replay counter
1122                 UCHAR   ZeroReplay[LEN_KEY_DESC_REPLAY];
1123
1124         NdisZeroMemory(ZeroReplay, LEN_KEY_DESC_REPLAY);
1125                 if ((RTMPCompareMemory(pMsg->KeyDesc.ReplayCounter, pEntry->R_Counter, LEN_KEY_DESC_REPLAY) != 1) &&
1126                         (RTMPCompareMemory(pMsg->KeyDesc.ReplayCounter, ZeroReplay, LEN_KEY_DESC_REPLAY) != 0))
1127         {
1128                         bReplayDiff = TRUE;
1129         }
1130         }
1131         else if (MsgType == EAPOL_PAIR_MSG_2 || MsgType == EAPOL_PAIR_MSG_4 || MsgType == EAPOL_GROUP_MSG_2)    // For authenticator
1132         {
1133                 // check Replay Counter coresponds to MSG from authenticator, otherwise discard
1134         if (!NdisEqualMemory(pMsg->KeyDesc.ReplayCounter, pEntry->R_Counter, LEN_KEY_DESC_REPLAY))
1135         {
1136                         bReplayDiff = TRUE;
1137         }
1138         }
1139
1140         // Replay Counter different condition
1141         if (bReplayDiff)
1142         {
1143                 // send wireless event - for replay counter different
1144                 if (pAd->CommonCfg.bWirelessEvent)
1145                         RTMPSendWirelessEvent(pAd, IW_REPLAY_COUNTER_DIFF_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
1146
1147                 if (MsgType < EAPOL_GROUP_MSG_1)
1148                 {
1149                 DBGPRINT(RT_DEBUG_ERROR, ("Replay Counter Different in pairwise msg %d of 4-way handshake!\n", MsgType));
1150                 }
1151                 else
1152                 {
1153                         DBGPRINT(RT_DEBUG_ERROR, ("Replay Counter Different in group msg %d of 2-way handshake!\n", (MsgType - EAPOL_PAIR_MSG_4)));
1154                 }
1155
1156                 hex_dump("Receive replay counter ", pMsg->KeyDesc.ReplayCounter, LEN_KEY_DESC_REPLAY);
1157                 hex_dump("Current replay counter ", pEntry->R_Counter, LEN_KEY_DESC_REPLAY);
1158         return FALSE;
1159         }
1160
1161         // 2. Verify MIC except Pairwise Msg1
1162         if (MsgType != EAPOL_PAIR_MSG_1)
1163         {
1164                 UCHAR                   rcvd_mic[LEN_KEY_DESC_MIC];
1165
1166                 // Record the received MIC for check later
1167                 NdisMoveMemory(rcvd_mic, pMsg->KeyDesc.KeyMic, LEN_KEY_DESC_MIC);
1168                 NdisZeroMemory(pMsg->KeyDesc.KeyMic, LEN_KEY_DESC_MIC);
1169
1170         if (EapolKeyInfo.KeyDescVer == DESC_TYPE_TKIP)  // TKIP
1171         {
1172             HMAC_MD5(pEntry->PTK, LEN_EAP_MICK, (PUCHAR)pMsg, MsgLen, mic, MD5_DIGEST_SIZE);
1173         }
1174         else if (EapolKeyInfo.KeyDescVer == DESC_TYPE_AES)      // AES
1175         {
1176             HMAC_SHA1(pEntry->PTK, LEN_EAP_MICK, (PUCHAR)pMsg, MsgLen, digest, SHA1_DIGEST_SIZE);
1177             NdisMoveMemory(mic, digest, LEN_KEY_DESC_MIC);
1178         }
1179
1180         if (!NdisEqualMemory(rcvd_mic, mic, LEN_KEY_DESC_MIC))
1181         {
1182                         // send wireless event - for MIC different
1183                         if (pAd->CommonCfg.bWirelessEvent)
1184                                 RTMPSendWirelessEvent(pAd, IW_MIC_DIFF_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
1185
1186                         if (MsgType < EAPOL_GROUP_MSG_1)
1187                         {
1188                 DBGPRINT(RT_DEBUG_ERROR, ("MIC Different in pairwise msg %d of 4-way handshake!\n", MsgType));
1189                         }
1190                         else
1191                         {
1192                                 DBGPRINT(RT_DEBUG_ERROR, ("MIC Different in group msg %d of 2-way handshake!\n", (MsgType - EAPOL_PAIR_MSG_4)));
1193                         }
1194
1195                         hex_dump("Received MIC", rcvd_mic, LEN_KEY_DESC_MIC);
1196                         hex_dump("Desired  MIC", mic, LEN_KEY_DESC_MIC);
1197
1198                         return FALSE;
1199         }
1200         }
1201
1202         // 1. Decrypt the Key Data field if GTK is included.
1203         // 2. Extract the context of the Key Data field if it exist.
1204         // The field in pairwise_msg_2_WPA1(WPA2) & pairwise_msg_3_WPA1 is clear.
1205         // The field in group_msg_1_WPA1(WPA2) & pairwise_msg_3_WPA2 is encrypted.
1206         if (CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyDataLen) > 0)
1207         {
1208                 // Decrypt this field
1209                 if ((MsgType == EAPOL_PAIR_MSG_3 && bWPA2) || (MsgType == EAPOL_GROUP_MSG_1))
1210                 {
1211                         if(
1212                                 (EapolKeyInfo.KeyDescVer == DESC_TYPE_AES))
1213                         {
1214                                 // AES
1215                                 AES_GTK_KEY_UNWRAP(&pEntry->PTK[16], KEYDATA,
1216                                                                         CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyDataLen),
1217                                                                         pMsg->KeyDesc.KeyData);
1218                         }
1219                         else
1220                         {
1221                                 INT     i;
1222                                 UCHAR   Key[32];
1223                                 // Decrypt TKIP GTK
1224                                 // Construct 32 bytes RC4 Key
1225                                 NdisMoveMemory(Key, pMsg->KeyDesc.KeyIv, 16);
1226                                 NdisMoveMemory(&Key[16], &pEntry->PTK[16], 16);
1227                                 ARCFOUR_INIT(&pAd->PrivateInfo.WEPCONTEXT, Key, 32);
1228                                 //discard first 256 bytes
1229                                 for(i = 0; i < 256; i++)
1230                                         ARCFOUR_BYTE(&pAd->PrivateInfo.WEPCONTEXT);
1231                                 // Decrypt GTK. Becareful, there is no ICV to check the result is correct or not
1232                                 ARCFOUR_DECRYPT(&pAd->PrivateInfo.WEPCONTEXT, KEYDATA,
1233                                                                 pMsg->KeyDesc.KeyData,
1234                                                                 CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyDataLen));
1235                         }
1236
1237                         if (!bWPA2 && (MsgType == EAPOL_GROUP_MSG_1))
1238                                 GroupKeyIndex = EapolKeyInfo.KeyIndex;
1239
1240                 }
1241                 else if ((MsgType == EAPOL_PAIR_MSG_2) || (MsgType == EAPOL_PAIR_MSG_3 && !bWPA2))
1242                 {
1243                         NdisMoveMemory(KEYDATA, pMsg->KeyDesc.KeyData, CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyDataLen));
1244                 }
1245                 else
1246                 {
1247
1248                         return TRUE;
1249                 }
1250
1251                 // Parse Key Data field to
1252                 // 1. verify RSN IE for pairwise_msg_2_WPA1(WPA2) ,pairwise_msg_3_WPA1(WPA2)
1253                 // 2. verify KDE format for pairwise_msg_3_WPA2, group_msg_1_WPA2
1254                 // 3. update shared key for pairwise_msg_3_WPA2, group_msg_1_WPA1(WPA2)
1255                 if (!RTMPParseEapolKeyData(pAd, KEYDATA,
1256                                                                   CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyDataLen),
1257                                                                   GroupKeyIndex, MsgType, bWPA2, pEntry))
1258                 {
1259                         return FALSE;
1260                 }
1261         }
1262
1263         return TRUE;
1264
1265 }