drivers/staging/vt6655/dpc.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * File: dpc.c
  20  *
  21  * Purpose: handle dpc rx functions
  22  *
  23  * Author: Lyndon Chen
  24  *
  25  * Date: May 20, 2003
  26  *
  27  * Functions:
  28  *      device_receive_frame - Rcv 802.11 frame function
  29  *      s_bAPModeRxCtl- AP Rcv frame filer Ctl.
  30  *      s_bAPModeRxData- AP Rcv data frame handle
  31  *      s_bHandleRxEncryption- Rcv decrypted data via on-fly
  32  *      s_bHostWepRxEncryption- Rcv encrypted data via host
  33  *      s_byGetRateIdx- get rate index
  34  *      s_vGetDASA- get data offset
  35  *      s_vProcessRxMACHeader- Rcv 802.11 and translate to 802.3
  36  *
  37  * Revision History:
  38  *
  39  */
  40
  41 #include "device.h"
  42 #include "rxtx.h"
  43 #include "tether.h"
  44 #include "card.h"
  45 #include "bssdb.h"
  46 #include "mac.h"
  47 #include "baseband.h"
  48 #include "michael.h"
  49 #include "tkip.h"
  50 #include "tcrc.h"
  51 #include "wctl.h"
  52 #include "wroute.h"
  53 #include "hostap.h"
  54 #include "rf.h"
  55 #include "iowpa.h"
  56 #include "aes_ccmp.h"
  57
  58
  59
  60 /*---------------------  Static Definitions -------------------------*/
  61
  62 /*---------------------  Static Classes  ----------------------------*/
  63
  64 /*---------------------  Static Variables  --------------------------*/
  65 //static int          msglevel                =MSG_LEVEL_DEBUG;
  66 static int          msglevel                =MSG_LEVEL_INFO;
  67
  68 const unsigned char acbyRxRate[MAX_RATE] =
  69 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
  70
  71
  72 /*---------------------  Static Functions  --------------------------*/
  73
  74 /*---------------------  Static Definitions -------------------------*/
  75
  76 /*---------------------  Static Functions  --------------------------*/
  77
  78 static unsigned char s_byGetRateIdx(unsigned char byRate);
  79
  80
  81 static void
  82 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
  83                 PSEthernetHeader psEthHeader);
  84
  85 static void
  86 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
  87                 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
  88                 unsigned int *pcbHeadSize);
  89
  90 static bool s_bAPModeRxCtl(
  91     PSDevice pDevice,
  92     unsigned char *pbyFrame,
  93     int      iSANodeIndex
  94     );
  95
  96
  97
  98 static bool s_bAPModeRxData (
  99     PSDevice pDevice,
 100     struct sk_buff* skb,
 101     unsigned int FrameSize,
 102     unsigned int cbHeaderOffset,
 103     int      iSANodeIndex,
 104     int      iDANodeIndex
 105     );
 106
 107
 108 static bool s_bHandleRxEncryption(
 109     PSDevice     pDevice,
 110     unsigned char *pbyFrame,
 111     unsigned int FrameSize,
 112     unsigned char *pbyRsr,
 113     unsigned char *pbyNewRsr,
 114     PSKeyItem   *pKeyOut,
 115     bool *pbExtIV,
 116     unsigned short *pwRxTSC15_0,
 117     unsigned long *pdwRxTSC47_16
 118     );
 119
 120 static bool s_bHostWepRxEncryption(
 121
 122     PSDevice     pDevice,
 123     unsigned char *pbyFrame,
 124     unsigned int FrameSize,
 125     unsigned char *pbyRsr,
 126     bool bOnFly,
 127     PSKeyItem    pKey,
 128     unsigned char *pbyNewRsr,
 129     bool *pbExtIV,
 130     unsigned short *pwRxTSC15_0,
 131     unsigned long *pdwRxTSC47_16
 132
 133     );
 134
 135 /*---------------------  Export Variables  --------------------------*/
 136
 137 /*+
 138  *
 139  * Description:
 140  *    Translate Rcv 802.11 header to 802.3 header with Rx buffer
 141  *
 142  * Parameters:
 143  *  In:
 144  *      pDevice
 145  *      dwRxBufferAddr  - Address of Rcv Buffer
 146  *      cbPacketSize    - Rcv Packet size
 147  *      bIsWEP          - If Rcv with WEP
 148  *  Out:
 149  *      pcbHeaderSize   - 802.11 header size
 150  *
 151  * Return Value: None
 152  *
 153 -*/
 154 static void
 155 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
 156                 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
 157                 unsigned int *pcbHeadSize)
 158 {
 159     unsigned char *pbyRxBuffer;
 160     unsigned int cbHeaderSize = 0;
 161     unsigned short *pwType;
 162     PS802_11Header  pMACHeader;
 163     int             ii;
 164
 165
 166     pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
 167
 168     s_vGetDASA((unsigned char *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
 169
 170     if (bIsWEP) {
 171         if (bExtIV) {
 172             // strip IV&ExtIV , add 8 byte
 173             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
 174         } else {
 175             // strip IV , add 4 byte
 176             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
 177         }
 178     }
 179     else {
 180         cbHeaderSize += WLAN_HDR_ADDR3_LEN;
 181     };
 182
 183     pbyRxBuffer = (unsigned char *) (pbyRxBufferAddr + cbHeaderSize);
 184     if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
 185         cbHeaderSize += 6;
 186     }
 187     else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
 188         cbHeaderSize += 6;
 189         pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
 190         if ((*pwType!= TYPE_PKT_IPX) && (*pwType != cpu_to_le16(0xF380))) {
 191         }
 192         else {
 193             cbHeaderSize -= 8;
 194             pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
 195             if (bIsWEP) {
 196                 if (bExtIV) {
 197                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 198                 } else {
 199                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 200                 }
 201             }
 202             else {
 203                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 204             }
 205         }
 206     }
 207     else {
 208         cbHeaderSize -= 2;
 209         pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
 210         if (bIsWEP) {
 211             if (bExtIV) {
 212                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 213             } else {
 214                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 215             }
 216         }
 217         else {
 218             *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 219         }
 220     }
 221
 222     cbHeaderSize -= (ETH_ALEN * 2);
 223     pbyRxBuffer = (unsigned char *) (pbyRxBufferAddr + cbHeaderSize);
 224     for(ii=0;ii<ETH_ALEN;ii++)
 225         *pbyRxBuffer++ = pDevice->sRxEthHeader.abyDstAddr[ii];
 226     for(ii=0;ii<ETH_ALEN;ii++)
 227         *pbyRxBuffer++ = pDevice->sRxEthHeader.abySrcAddr[ii];
 228
 229     *pcbHeadSize = cbHeaderSize;
 230 }
 231
 232
 233
 234
 235 static unsigned char s_byGetRateIdx (unsigned char byRate)
 236 {
 237     unsigned char byRateIdx;
 238
 239     for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
 240         if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
 241             return byRateIdx;
 242     }
 243     return 0;
 244 }
 245
 246
 247 static void
 248 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
 249         PSEthernetHeader psEthHeader)
 250 {
 251     unsigned int cbHeaderSize = 0;
 252     PS802_11Header  pMACHeader;
 253     int             ii;
 254
 255     pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
 256
 257     if ((pMACHeader->wFrameCtl & FC_TODS) == 0) {
 258         if (pMACHeader->wFrameCtl & FC_FROMDS) {
 259             for(ii=0;ii<ETH_ALEN;ii++) {
 260                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
 261                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr3[ii];
 262             }
 263         }
 264         else {
 265             // IBSS mode
 266             for(ii=0;ii<ETH_ALEN;ii++) {
 267                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
 268                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
 269             }
 270         }
 271     }
 272     else {
 273         // Is AP mode..
 274         if (pMACHeader->wFrameCtl & FC_FROMDS) {
 275             for(ii=0;ii<ETH_ALEN;ii++) {
 276                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
 277                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr4[ii];
 278                 cbHeaderSize += 6;
 279             }
 280         }
 281         else {
 282             for(ii=0;ii<ETH_ALEN;ii++) {
 283                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
 284                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
 285             }
 286         }
 287     };
 288     *pcbHeaderSize = cbHeaderSize;
 289 }
 290
 291
 292
 293
 294 //PLICE_DEBUG ->
 295
 296 void    MngWorkItem(void *Context)
 297 {
 298         PSRxMgmtPacket                  pRxMgmtPacket;
 299         PSDevice        pDevice =  (PSDevice) Context;
 300         //printk("Enter MngWorkItem,Queue packet num is %d\n",pDevice->rxManeQueue.packet_num);
 301         spin_lock_irq(&pDevice->lock);
 302          while(pDevice->rxManeQueue.packet_num != 0)
 303          {
 304                  pRxMgmtPacket =  DeQueue(pDevice);
 305                         vMgrRxManagePacket(pDevice, pDevice->pMgmt, pRxMgmtPacket);
 306         }
 307         spin_unlock_irq(&pDevice->lock);
 308 }
 309
 310
 311 //PLICE_DEBUG<-
 312
 313
 314
 315 bool
 316 device_receive_frame (
 317     PSDevice pDevice,
 318     PSRxDesc pCurrRD
 319     )
 320 {
 321
 322     PDEVICE_RD_INFO  pRDInfo = pCurrRD->pRDInfo;
 323 #ifdef  PLICE_DEBUG
 324         //printk("device_receive_frame:pCurrRD is %x,pRDInfo is %x\n",pCurrRD,pCurrRD->pRDInfo);
 325 #endif
 326     struct net_device_stats* pStats=&pDevice->stats;
 327     struct sk_buff* skb;
 328     PSMgmtObject    pMgmt = pDevice->pMgmt;
 329     PSRxMgmtPacket  pRxPacket = &(pDevice->pMgmt->sRxPacket);
 330     PS802_11Header  p802_11Header;
 331     unsigned char *pbyRsr;
 332     unsigned char *pbyNewRsr;
 333     unsigned char *pbyRSSI;
 334     PQWORD          pqwTSFTime;
 335     unsigned short *pwFrameSize;
 336     unsigned char *pbyFrame;
 337     bool bDeFragRx = false;
 338     bool bIsWEP = false;
 339     unsigned int cbHeaderOffset;
 340     unsigned int FrameSize;
 341     unsigned short wEtherType = 0;
 342     int             iSANodeIndex = -1;
 343     int             iDANodeIndex = -1;
 344     unsigned int ii;
 345     unsigned int cbIVOffset;
 346     bool bExtIV = false;
 347     unsigned char *pbyRxSts;
 348     unsigned char *pbyRxRate;
 349     unsigned char *pbySQ;
 350     unsigned int cbHeaderSize;
 351     PSKeyItem       pKey = NULL;
 352     unsigned short wRxTSC15_0 = 0;
 353     unsigned long dwRxTSC47_16 = 0;
 354     SKeyItem        STempKey;
 355     // 802.11h RPI
 356     unsigned long dwDuration = 0;
 357     long            ldBm = 0;
 358     long            ldBmThreshold = 0;
 359     PS802_11Header pMACHeader;
 360  bool bRxeapol_key = false;
 361
 362 //    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- device_receive_frame---\n");
 363
 364     skb = pRDInfo->skb;
 365
 366
 367 //PLICE_DEBUG->
 368 #if 1
 369         pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
 370                      pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
 371 #endif
 372 //PLICE_DEBUG<-
 373     pwFrameSize = (unsigned short *)(skb->data + 2);
 374     FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
 375
 376     // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
 377     // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
 378     if ((FrameSize > 2364)||(FrameSize <= 32)) {
 379         // Frame Size error drop this packet.
 380         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 1 \n");
 381         return false;
 382     }
 383
 384     pbyRxSts = (unsigned char *) (skb->data);
 385     pbyRxRate = (unsigned char *) (skb->data + 1);
 386     pbyRsr = (unsigned char *) (skb->data + FrameSize - 1);
 387     pbyRSSI = (unsigned char *) (skb->data + FrameSize - 2);
 388     pbyNewRsr = (unsigned char *) (skb->data + FrameSize - 3);
 389     pbySQ = (unsigned char *) (skb->data + FrameSize - 4);
 390     pqwTSFTime = (PQWORD) (skb->data + FrameSize - 12);
 391     pbyFrame = (unsigned char *)(skb->data + 4);
 392
 393     // get packet size
 394     FrameSize = cpu_to_le16(*pwFrameSize);
 395
 396     if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
 397                                                // Min: 14 bytes ACK
 398         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 2 \n");
 399         return false;
 400     }
 401 //PLICE_DEBUG->
 402 #if 1
 403         // update receive statistic counter
 404     STAvUpdateRDStatCounter(&pDevice->scStatistic,
 405                             *pbyRsr,
 406                             *pbyNewRsr,
 407                             *pbyRxRate,
 408                             pbyFrame,
 409                             FrameSize);
 410
 411 #endif
 412
 413   pMACHeader=(PS802_11Header)((unsigned char *) (skb->data)+8);
 414 //PLICE_DEBUG<-
 415         if (pDevice->bMeasureInProgress == true) {
 416         if ((*pbyRsr & RSR_CRCOK) != 0) {
 417             pDevice->byBasicMap |= 0x01;
 418         }
 419         dwDuration = (FrameSize << 4);
 420         dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
 421         if (*pbyRxRate <= RATE_11M) {
 422             if (*pbyRxSts & 0x01) {
 423                 // long preamble
 424                 dwDuration += 192;
 425             } else {
 426                 // short preamble
 427                 dwDuration += 96;
 428             }
 429         } else {
 430             dwDuration += 16;
 431         }
 432         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
 433         ldBmThreshold = -57;
 434         for (ii = 7; ii > 0;) {
 435             if (ldBm > ldBmThreshold) {
 436                 break;
 437             }
 438             ldBmThreshold -= 5;
 439             ii--;
 440         }
 441         pDevice->dwRPIs[ii] += dwDuration;
 442         return false;
 443     }
 444
 445     if (!is_multicast_ether_addr(pbyFrame)) {
 446         if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header) (skb->data + 4))) {
 447             pDevice->s802_11Counter.FrameDuplicateCount++;
 448             return false;
 449         }
 450     }
 451
 452
 453     // Use for TKIP MIC
 454     s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
 455
 456     // filter packet send from myself
 457     if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
 458         return false;
 459
 460     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
 461         if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
 462             p802_11Header = (PS802_11Header) (pbyFrame);
 463             // get SA NodeIndex
 464             if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
 465                 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
 466                 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
 467             }
 468         }
 469     }
 470
 471     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 472         if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
 473             return false;
 474         }
 475     }
 476
 477
 478     if (IS_FC_WEP(pbyFrame)) {
 479         bool bRxDecryOK = false;
 480
 481         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
 482         bIsWEP = true;
 483         if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
 484             pKey = &STempKey;
 485             pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
 486             pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
 487             pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
 488             pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
 489             pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
 490             memcpy(pKey->abyKey,
 491                 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
 492                 pKey->uKeyLength
 493                 );
 494
 495             bRxDecryOK = s_bHostWepRxEncryption(pDevice,
 496                                                 pbyFrame,
 497                                                 FrameSize,
 498                                                 pbyRsr,
 499                                                 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
 500                                                 pKey,
 501                                                 pbyNewRsr,
 502                                                 &bExtIV,
 503                                                 &wRxTSC15_0,
 504                                                 &dwRxTSC47_16);
 505         } else {
 506             bRxDecryOK = s_bHandleRxEncryption(pDevice,
 507                                                 pbyFrame,
 508                                                 FrameSize,
 509                                                 pbyRsr,
 510                                                 pbyNewRsr,
 511                                                 &pKey,
 512                                                 &bExtIV,
 513                                                 &wRxTSC15_0,
 514                                                 &dwRxTSC47_16);
 515         }
 516
 517         if (bRxDecryOK) {
 518             if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
 519                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
 520                 if ( (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
 521                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
 522                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
 523                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
 524                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
 525
 526                     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 527                         pDevice->s802_11Counter.TKIPICVErrors++;
 528                     } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
 529                         pDevice->s802_11Counter.CCMPDecryptErrors++;
 530                     } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
 531 //                      pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
 532                     }
 533                 }
 534                 return false;
 535             }
 536         } else {
 537             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
 538             return false;
 539         }
 540         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
 541             FrameSize -= 8;         // Message Integrity Code
 542         else
 543             FrameSize -= 4;         // 4 is ICV
 544     }
 545
 546
 547     //
 548     // RX OK
 549     //
 550     //remove the CRC length
 551     FrameSize -= ETH_FCS_LEN;
 552
 553     if (( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
 554         (IS_FRAGMENT_PKT((skb->data+4)))
 555         ) {
 556         // defragment
 557         bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header) (skb->data+4), FrameSize, bIsWEP, bExtIV);
 558         pDevice->s802_11Counter.ReceivedFragmentCount++;
 559         if (bDeFragRx) {
 560             // defrag complete
 561             skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
 562             FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
 563
 564         }
 565         else {
 566             return false;
 567         }
 568     }
 569
 570
 571 // Management & Control frame Handle
 572     if ((IS_TYPE_DATA((skb->data+4))) == false) {
 573         // Handle Control & Manage Frame
 574
 575         if (IS_TYPE_MGMT((skb->data+4))) {
 576             unsigned char *pbyData1;
 577             unsigned char *pbyData2;
 578
 579             pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
 580             pRxPacket->cbMPDULen = FrameSize;
 581             pRxPacket->uRSSI = *pbyRSSI;
 582             pRxPacket->bySQ = *pbySQ;
 583             HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
 584             LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
 585             if (bIsWEP) {
 586                 // strip IV
 587                 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
 588                 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
 589                 for (ii = 0; ii < (FrameSize - 4); ii++) {
 590                     *pbyData1 = *pbyData2;
 591                      pbyData1++;
 592                      pbyData2++;
 593                 }
 594             }
 595             pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
 596             pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
 597 //PLICE_DEBUG->
 598 //EnQueue(pDevice,pRxPacket);
 599
 600 #ifdef  THREAD
 601                 EnQueue(pDevice,pRxPacket);
 602
 603                 //printk("enque time is %x\n",jiffies);
 604                 //up(&pDevice->mlme_semaphore);
 605                         //Enque (pDevice->FirstRecvMngList,pDevice->LastRecvMngList,pMgmt);
 606 #else
 607
 608 #ifdef  TASK_LET
 609                 EnQueue(pDevice,pRxPacket);
 610                 tasklet_schedule(&pDevice->RxMngWorkItem);
 611 #else
 612 //printk("RxMan\n");
 613         vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
 614            //tasklet_schedule(&pDevice->RxMngWorkItem);
 615 #endif
 616
 617 #endif
 618 //PLICE_DEBUG<-
 619                         //vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
 620             // hostap Deamon handle 802.11 management
 621             if (pDevice->bEnableHostapd) {
 622                     skb->dev = pDevice->apdev;
 623                     skb->data += 4;
 624                     skb->tail += 4;
 625                      skb_put(skb, FrameSize);
 626                 skb_reset_mac_header(skb);
 627                     skb->pkt_type = PACKET_OTHERHOST;
 628                 skb->protocol = htons(ETH_P_802_2);
 629                     memset(skb->cb, 0, sizeof(skb->cb));
 630                     netif_rx(skb);
 631                 return true;
 632                 }
 633         }
 634         else {
 635             // Control Frame
 636         };
 637         return false;
 638     }
 639     else {
 640         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 641             //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
 642             if ( !(*pbyRsr & RSR_BSSIDOK)) {
 643                 if (bDeFragRx) {
 644                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 645                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 646                         pDevice->dev->name);
 647                     }
 648                 }
 649                 return false;
 650             }
 651         }
 652         else {
 653             // discard DATA packet while not associate || BSSID error
 654             if ((pDevice->bLinkPass == false) ||
 655                 !(*pbyRsr & RSR_BSSIDOK)) {
 656                 if (bDeFragRx) {
 657                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 658                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 659                         pDevice->dev->name);
 660                     }
 661                 }
 662                 return false;
 663             }
 664    //mike add:station mode check eapol-key challenge--->
 665           {
 666             unsigned char Protocol_Version;    //802.1x Authentication
 667             unsigned char Packet_Type;           //802.1x Authentication
 668               if (bIsWEP)
 669                   cbIVOffset = 8;
 670               else
 671                   cbIVOffset = 0;
 672               wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
 673                           skb->data[cbIVOffset + 8 + 24 + 6 + 1];
 674               Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
 675               Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
 676              if (wEtherType == ETH_P_PAE) {         //Protocol Type in LLC-Header
 677                   if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
 678                      (Packet_Type==3)) {  //802.1x OR eapol-key challenge frame receive
 679                         bRxeapol_key = true;
 680                   }
 681               }
 682           }
 683     //mike add:station mode check eapol-key challenge<---
 684         }
 685     }
 686
 687
 688 // Data frame Handle
 689
 690
 691     if (pDevice->bEnablePSMode) {
 692         if (IS_FC_MOREDATA((skb->data+4))) {
 693             if (*pbyRsr & RSR_ADDROK) {
 694                 //PSbSendPSPOLL((PSDevice)pDevice);
 695             }
 696         }
 697         else {
 698             if (pDevice->pMgmt->bInTIMWake == true) {
 699                 pDevice->pMgmt->bInTIMWake = false;
 700             }
 701         }
 702     }
 703
 704     // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
 705     if (pDevice->bDiversityEnable && (FrameSize>50) &&
 706         (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
 707         (pDevice->bLinkPass == true)) {
 708         //printk("device_receive_frame: RxRate is %d\n",*pbyRxRate);
 709                 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
 710     }
 711
 712
 713     if (pDevice->byLocalID != REV_ID_VT3253_B1) {
 714         pDevice->uCurrRSSI = *pbyRSSI;
 715     }
 716     pDevice->byCurrSQ = *pbySQ;
 717
 718     if ((*pbyRSSI != 0) &&
 719         (pMgmt->pCurrBSS!=NULL)) {
 720         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
 721         // Monitor if RSSI is too strong.
 722         pMgmt->pCurrBSS->byRSSIStatCnt++;
 723         pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
 724         pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
 725         for(ii=0;ii<RSSI_STAT_COUNT;ii++) {
 726             if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
 727             pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
 728             }
 729         }
 730     }
 731
 732     // -----------------------------------------------
 733
 734     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
 735         unsigned char abyMacHdr[24];
 736
 737         // Only 802.1x packet incoming allowed
 738         if (bIsWEP)
 739             cbIVOffset = 8;
 740         else
 741             cbIVOffset = 0;
 742         wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
 743                     skb->data[cbIVOffset + 4 + 24 + 6 + 1];
 744
 745             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
 746         if (wEtherType == ETH_P_PAE) {
 747             skb->dev = pDevice->apdev;
 748
 749             if (bIsWEP == true) {
 750                 // strip IV header(8)
 751                 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
 752                 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
 753             }
 754             skb->data +=  (cbIVOffset + 4);
 755             skb->tail +=  (cbIVOffset + 4);
 756             skb_put(skb, FrameSize);
 757             skb_reset_mac_header(skb);
 758
 759         skb->pkt_type = PACKET_OTHERHOST;
 760             skb->protocol = htons(ETH_P_802_2);
 761             memset(skb->cb, 0, sizeof(skb->cb));
 762             netif_rx(skb);
 763             return true;
 764
 765 }
 766         // check if 802.1x authorized
 767         if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
 768             return false;
 769     }
 770
 771
 772     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 773         if (bIsWEP) {
 774             FrameSize -= 8;  //MIC
 775         }
 776     }
 777
 778     //--------------------------------------------------------------------------------
 779     // Soft MIC
 780     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 781         if (bIsWEP) {
 782             unsigned long *pdwMIC_L;
 783             unsigned long *pdwMIC_R;
 784             unsigned long dwMIC_Priority;
 785             unsigned long dwMICKey0 = 0, dwMICKey1 = 0;
 786             unsigned long dwLocalMIC_L = 0;
 787             unsigned long dwLocalMIC_R = 0;
 788             viawget_wpa_header *wpahdr;
 789
 790
 791             if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 792                 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
 793                 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
 794             }
 795             else {
 796                 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
 797                     dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
 798                     dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
 799                 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
 800                     dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
 801                     dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
 802                 } else {
 803                     dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
 804                     dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
 805                 }
 806             }
 807
 808             MIC_vInit(dwMICKey0, dwMICKey1);
 809             MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
 810             dwMIC_Priority = 0;
 811             MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
 812             // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
 813             MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
 814                         FrameSize - WLAN_HDR_ADDR3_LEN - 8);
 815             MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
 816             MIC_vUnInit();
 817
 818             pdwMIC_L = (unsigned long *)(skb->data + 4 + FrameSize);
 819             pdwMIC_R = (unsigned long *)(skb->data + 4 + FrameSize + 4);
 820             //DBG_PRN_GRP12(("RxL: %lx, RxR: %lx\n", *pdwMIC_L, *pdwMIC_R));
 821             //DBG_PRN_GRP12(("LocalL: %lx, LocalR: %lx\n", dwLocalMIC_L, dwLocalMIC_R));
 822             //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwMICKey0= %lx,dwMICKey1= %lx \n", dwMICKey0, dwMICKey1);
 823
 824
 825             if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
 826                 (pDevice->bRxMICFail == true)) {
 827                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
 828                 pDevice->bRxMICFail = false;
 829                 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
 830                 pDevice->s802_11Counter.TKIPLocalMICFailures++;
 831                 if (bDeFragRx) {
 832                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 833                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 834                             pDevice->dev->name);
 835                     }
 836                 }
 837                //2008-0409-07, <Add> by Einsn Liu
 838        #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
 839                                 //send event to wpa_supplicant
 840                                 //if(pDevice->bWPADevEnable == true)
 841                                 {
 842                                         union iwreq_data wrqu;
 843                                         struct iw_michaelmicfailure ev;
 844                                         int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
 845                                         memset(&ev, 0, sizeof(ev));
 846                                         ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
 847                                         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 848                                                         (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
 849                                                                 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
 850                                                 ev.flags |= IW_MICFAILURE_PAIRWISE;
 851                                         } else {
 852                                                 ev.flags |= IW_MICFAILURE_GROUP;
 853                                         }
 854
 855                                         ev.src_addr.sa_family = ARPHRD_ETHER;
 856                                         memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
 857                                         memset(&wrqu, 0, sizeof(wrqu));
 858                                         wrqu.data.length = sizeof(ev);
 859                                         wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
 860
 861                                 }
 862          #endif
 863
 864
 865                 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
 866                      wpahdr = (viawget_wpa_header *)pDevice->skb->data;
 867                      if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 868                          (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
 869                          (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
 870                          //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
 871                          wpahdr->type = VIAWGET_PTK_MIC_MSG;
 872                      } else {
 873                          //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
 874                          wpahdr->type = VIAWGET_GTK_MIC_MSG;
 875                      }
 876                      wpahdr->resp_ie_len = 0;
 877                      wpahdr->req_ie_len = 0;
 878                      skb_put(pDevice->skb, sizeof(viawget_wpa_header));
 879                      pDevice->skb->dev = pDevice->wpadev;
 880                      skb_reset_mac_header(pDevice->skb);
 881                      pDevice->skb->pkt_type = PACKET_HOST;
 882                      pDevice->skb->protocol = htons(ETH_P_802_2);
 883                      memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
 884                      netif_rx(pDevice->skb);
 885                      pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
 886                  }
 887
 888                 return false;
 889
 890             }
 891         }
 892     } //---end of SOFT MIC-----------------------------------------------------------------------
 893
 894     // ++++++++++ Reply Counter Check +++++++++++++
 895
 896     if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
 897                            (pKey->byCipherSuite == KEY_CTL_CCMP))) {
 898         if (bIsWEP) {
 899             unsigned short wLocalTSC15_0 = 0;
 900             unsigned long dwLocalTSC47_16 = 0;
 901             unsigned long long       RSC = 0;
 902             // endian issues
 903             RSC = *((unsigned long long *) &(pKey->KeyRSC));
 904             wLocalTSC15_0 = (unsigned short) RSC;
 905             dwLocalTSC47_16 = (unsigned long) (RSC>>16);
 906
 907             RSC = dwRxTSC47_16;
 908             RSC <<= 16;
 909             RSC += wRxTSC15_0;
 910             memcpy(&(pKey->KeyRSC), &RSC,  sizeof(QWORD));
 911
 912             if ( (pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
 913                  (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
 914                 // check RSC
 915                 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
 916                      (dwRxTSC47_16 <= dwLocalTSC47_16) &&
 917                      !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
 918                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
 919                     if (pKey->byCipherSuite == KEY_CTL_TKIP)
 920                         //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
 921                         pDevice->s802_11Counter.TKIPReplays++;
 922                     else
 923                         //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
 924                         pDevice->s802_11Counter.CCMPReplays++;
 925
 926                     if (bDeFragRx) {
 927                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 928                             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 929                                 pDevice->dev->name);
 930                         }
 931                     }
 932                     return false;
 933                 }
 934             }
 935         }
 936     } // ----- End of Reply Counter Check --------------------------
 937
 938
 939
 940     if ((pKey != NULL) && (bIsWEP)) {
 941 //      pDevice->s802_11Counter.DecryptSuccessCount.QuadPart++;
 942     }
 943
 944
 945     s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
 946     FrameSize -= cbHeaderOffset;
 947     cbHeaderOffset += 4;        // 4 is Rcv buffer header
 948
 949     // Null data, framesize = 14
 950     if (FrameSize < 15)
 951         return false;
 952
 953     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 954         if (s_bAPModeRxData(pDevice,
 955                             skb,
 956                             FrameSize,
 957                             cbHeaderOffset,
 958                             iSANodeIndex,
 959                             iDANodeIndex
 960                             ) == false) {
 961
 962             if (bDeFragRx) {
 963                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 964                     DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 965                     pDevice->dev->name);
 966                 }
 967             }
 968             return false;
 969         }
 970
 971 //        if(pDevice->bRxMICFail == false) {
 972 //           for (ii =0; ii < 100; ii++)
 973 //                printk(" %02x", *(skb->data + ii));
 974 //           printk("\n");
 975 //          }
 976
 977     }
 978
 979         skb->data += cbHeaderOffset;
 980         skb->tail += cbHeaderOffset;
 981     skb_put(skb, FrameSize);
 982     skb->protocol=eth_type_trans(skb, skb->dev);
 983
 984
 985         //drop frame not met IEEE 802.3
 986 /*
 987         if (pDevice->flags & DEVICE_FLAGS_VAL_PKT_LEN) {
 988                 if ((skb->protocol==htons(ETH_P_802_3)) &&
 989                         (skb->len!=htons(skb->mac.ethernet->h_proto))) {
 990                         pStats->rx_length_errors++;
 991                         pStats->rx_dropped++;
 992             if (bDeFragRx) {
 993                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 994                     DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 995                     pDevice->dev->name);
 996                 }
 997             }
 998                         return false;
 999                 }
1000         }
1001 */
1002
1003     skb->ip_summed=CHECKSUM_NONE;
1004     pStats->rx_bytes +=skb->len;
1005     pStats->rx_packets++;
1006     netif_rx(skb);
1007
1008     if (bDeFragRx) {
1009         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
1010             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
1011                 pDevice->dev->name);
1012         }
1013         return false;
1014     }
1015
1016     return true;
1017 }
1018
1019
1020 static bool s_bAPModeRxCtl (
1021     PSDevice pDevice,
1022     unsigned char *pbyFrame,
1023     int      iSANodeIndex
1024     )
1025 {
1026     PS802_11Header      p802_11Header;
1027     CMD_STATUS          Status;
1028     PSMgmtObject        pMgmt = pDevice->pMgmt;
1029
1030
1031     if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1032
1033         p802_11Header = (PS802_11Header) (pbyFrame);
1034         if (!IS_TYPE_MGMT(pbyFrame)) {
1035
1036             // Data & PS-Poll packet
1037             // check frame class
1038             if (iSANodeIndex > 0) {
1039                 // frame class 3 fliter & checking
1040                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1041                     // send deauth notification
1042                     // reason = (6) class 2 received from nonauth sta
1043                     vMgrDeAuthenBeginSta(pDevice,
1044                                          pMgmt,
1045                                          (unsigned char *)(p802_11Header->abyAddr2),
1046                                          (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1047                                          &Status
1048                                          );
1049                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1050                     return true;
1051                 }
1052                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1053                     // send deassoc notification
1054                     // reason = (7) class 3 received from nonassoc sta
1055                     vMgrDisassocBeginSta(pDevice,
1056                                          pMgmt,
1057                                          (unsigned char *)(p802_11Header->abyAddr2),
1058                                          (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1059                                          &Status
1060                                          );
1061                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1062                     return true;
1063                 }
1064
1065                 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1066                     // delcare received ps-poll event
1067                     if (IS_CTL_PSPOLL(pbyFrame)) {
1068                         pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1069                         bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1070                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1071                     }
1072                     else {
1073                         // check Data PS state
1074                         // if PW bit off, send out all PS bufferring packets.
1075                         if (!IS_FC_POWERMGT(pbyFrame)) {
1076                             pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1077                             pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1078                             bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1079                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1080                         }
1081                     }
1082                 }
1083                 else {
1084                    if (IS_FC_POWERMGT(pbyFrame)) {
1085                        pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
1086                        // Once if STA in PS state, enable multicast bufferring
1087                        pMgmt->sNodeDBTable[0].bPSEnable = true;
1088                    }
1089                    else {
1090                       // clear all pending PS frame.
1091                       if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1092                           pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1093                           pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1094                           bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1095                          DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1096
1097                       }
1098                    }
1099                 }
1100             }
1101             else {
1102                   vMgrDeAuthenBeginSta(pDevice,
1103                                        pMgmt,
1104                                        (unsigned char *)(p802_11Header->abyAddr2),
1105                                        (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1106                                        &Status
1107                                        );
1108                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1109                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
1110                                 p802_11Header->abyAddr3);
1111                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
1112                                 p802_11Header->abyAddr2);
1113                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
1114                                 p802_11Header->abyAddr1);
1115                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl );
1116                     VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
1117                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode );
1118                     return true;
1119             }
1120         }
1121     }
1122     return false;
1123
1124 }
1125
1126 static bool s_bHandleRxEncryption (
1127     PSDevice     pDevice,
1128     unsigned char *pbyFrame,
1129     unsigned int FrameSize,
1130     unsigned char *pbyRsr,
1131     unsigned char *pbyNewRsr,
1132     PSKeyItem   *pKeyOut,
1133     bool *pbExtIV,
1134     unsigned short *pwRxTSC15_0,
1135     unsigned long *pdwRxTSC47_16
1136     )
1137 {
1138     unsigned int PayloadLen = FrameSize;
1139     unsigned char *pbyIV;
1140     unsigned char byKeyIdx;
1141     PSKeyItem       pKey = NULL;
1142     unsigned char byDecMode = KEY_CTL_WEP;
1143     PSMgmtObject    pMgmt = pDevice->pMgmt;
1144
1145
1146     *pwRxTSC15_0 = 0;
1147     *pdwRxTSC47_16 = 0;
1148
1149     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1150     if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1151          WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1152          pbyIV += 6;             // 6 is 802.11 address4
1153          PayloadLen -= 6;
1154     }
1155     byKeyIdx = (*(pbyIV+3) & 0xc0);
1156     byKeyIdx >>= 6;
1157     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1158
1159     if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1160         (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1161         (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1162         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1163         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1164         if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1165             (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1166             // unicast pkt use pairwise key
1167             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1168             if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1169                 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1170                     byDecMode = KEY_CTL_TKIP;
1171                 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1172                     byDecMode = KEY_CTL_CCMP;
1173             }
1174             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1175         } else {
1176             // use group key
1177             KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1178             if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1179                 byDecMode = KEY_CTL_TKIP;
1180             else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1181                 byDecMode = KEY_CTL_CCMP;
1182             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1183         }
1184     }
1185     // our WEP only support Default Key
1186     if (pKey == NULL) {
1187         // use default group key
1188         KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1189         if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1190             byDecMode = KEY_CTL_TKIP;
1191         else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1192             byDecMode = KEY_CTL_CCMP;
1193     }
1194     *pKeyOut = pKey;
1195
1196     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1197
1198     if (pKey == NULL) {
1199         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1200         if (byDecMode == KEY_CTL_WEP) {
1201 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1202         } else if (pDevice->bLinkPass == true) {
1203 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1204         }
1205         return false;
1206     }
1207     if (byDecMode != pKey->byCipherSuite) {
1208         if (byDecMode == KEY_CTL_WEP) {
1209 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1210         } else if (pDevice->bLinkPass == true) {
1211 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1212         }
1213         *pKeyOut = NULL;
1214         return false;
1215     }
1216     if (byDecMode == KEY_CTL_WEP) {
1217         // handle WEP
1218         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1219             (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1220             // Software WEP
1221             // 1. 3253A
1222             // 2. WEP 256
1223
1224             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1225             memcpy(pDevice->abyPRNG, pbyIV, 3);
1226             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1227             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1228             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1229
1230             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1231                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1232             }
1233         }
1234     } else if ((byDecMode == KEY_CTL_TKIP) ||
1235                (byDecMode == KEY_CTL_CCMP)) {
1236         // TKIP/AES
1237
1238         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1239         *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1240         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1241         if (byDecMode == KEY_CTL_TKIP) {
1242             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1243         } else {
1244             *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1245         }
1246         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1247
1248         if ((byDecMode == KEY_CTL_TKIP) &&
1249             (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1250             // Software TKIP
1251             // 1. 3253 A
1252             PS802_11Header  pMACHeader = (PS802_11Header) (pbyFrame);
1253             TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1254             rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1255             rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1256             if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1257                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1258                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1259             } else {
1260                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1261                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1262             }
1263         }
1264     }// end of TKIP/AES
1265
1266     if ((*(pbyIV+3) & 0x20) != 0)
1267         *pbExtIV = true;
1268     return true;
1269 }
1270
1271
1272 static bool s_bHostWepRxEncryption (
1273     PSDevice     pDevice,
1274     unsigned char *pbyFrame,
1275     unsigned int FrameSize,
1276     unsigned char *pbyRsr,
1277     bool bOnFly,
1278     PSKeyItem    pKey,
1279     unsigned char *pbyNewRsr,
1280     bool *pbExtIV,
1281     unsigned short *pwRxTSC15_0,
1282     unsigned long *pdwRxTSC47_16
1283     )
1284 {
1285     unsigned int PayloadLen = FrameSize;
1286     unsigned char *pbyIV;
1287     unsigned char byKeyIdx;
1288     unsigned char byDecMode = KEY_CTL_WEP;
1289     PS802_11Header  pMACHeader;
1290
1291
1292
1293     *pwRxTSC15_0 = 0;
1294     *pdwRxTSC47_16 = 0;
1295
1296     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1297     if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1298          WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1299          pbyIV += 6;             // 6 is 802.11 address4
1300          PayloadLen -= 6;
1301     }
1302     byKeyIdx = (*(pbyIV+3) & 0xc0);
1303     byKeyIdx >>= 6;
1304     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1305
1306
1307     if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1308         byDecMode = KEY_CTL_TKIP;
1309     else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1310         byDecMode = KEY_CTL_CCMP;
1311
1312     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1313
1314     if (byDecMode != pKey->byCipherSuite) {
1315         if (byDecMode == KEY_CTL_WEP) {
1316 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1317         } else if (pDevice->bLinkPass == true) {
1318 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1319         }
1320         return false;
1321     }
1322
1323     if (byDecMode == KEY_CTL_WEP) {
1324         // handle WEP
1325         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP \n");
1326         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1327             (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1328             (bOnFly == false)) {
1329             // Software WEP
1330             // 1. 3253A
1331             // 2. WEP 256
1332             // 3. NotOnFly
1333
1334             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1335             memcpy(pDevice->abyPRNG, pbyIV, 3);
1336             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1337             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1338             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1339
1340             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1341                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1342             }
1343         }
1344     } else if ((byDecMode == KEY_CTL_TKIP) ||
1345                (byDecMode == KEY_CTL_CCMP)) {
1346         // TKIP/AES
1347
1348         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1349         *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1350         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1351
1352         if (byDecMode == KEY_CTL_TKIP) {
1353             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1354         } else {
1355             *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1356         }
1357         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1358
1359         if (byDecMode == KEY_CTL_TKIP) {
1360
1361             if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1362                 // Software TKIP
1363                 // 1. 3253 A
1364                 // 2. NotOnFly
1365                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1366                 pMACHeader = (PS802_11Header) (pbyFrame);
1367                 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1368                 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1369                 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1370                 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1371                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1372                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1373                 } else {
1374                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1375                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1376                 }
1377             }
1378         }
1379
1380         if (byDecMode == KEY_CTL_CCMP) {
1381             if (bOnFly == false) {
1382                 // Software CCMP
1383                 // NotOnFly
1384                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1385                 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1386                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1387                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1388                 } else {
1389                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1390                 }
1391             }
1392         }
1393
1394     }// end of TKIP/AES
1395
1396     if ((*(pbyIV+3) & 0x20) != 0)
1397         *pbExtIV = true;
1398     return true;
1399 }
1400
1401
1402
1403 static bool s_bAPModeRxData (
1404     PSDevice pDevice,
1405     struct sk_buff* skb,
1406     unsigned int FrameSize,
1407     unsigned int cbHeaderOffset,
1408     int      iSANodeIndex,
1409     int      iDANodeIndex
1410     )
1411 {
1412     PSMgmtObject        pMgmt = pDevice->pMgmt;
1413     bool bRelayAndForward = false;
1414     bool bRelayOnly = false;
1415     unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1416     unsigned short wAID;
1417
1418
1419     struct sk_buff* skbcpy = NULL;
1420
1421     if (FrameSize > CB_MAX_BUF_SIZE)
1422         return false;
1423     // check DA
1424     if(is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1425        if (pMgmt->sNodeDBTable[0].bPSEnable) {
1426
1427            skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1428
1429         // if any node in PS mode, buffer packet until DTIM.
1430            if (skbcpy == NULL) {
1431                DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1432            }
1433            else {
1434                skbcpy->dev = pDevice->dev;
1435                skbcpy->len = FrameSize;
1436                memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1437                skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1438
1439                pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1440                // set tx map
1441                pMgmt->abyPSTxMap[0] |= byMask[0];
1442            }
1443        }
1444        else {
1445            bRelayAndForward = true;
1446        }
1447     }
1448     else {
1449         // check if relay
1450         if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1451             if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1452                 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1453                     // queue this skb until next PS tx, and then release.
1454
1455                         skb->data += cbHeaderOffset;
1456                         skb->tail += cbHeaderOffset;
1457                     skb_put(skb, FrameSize);
1458                     skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1459                     pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1460                     wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1461                     pMgmt->abyPSTxMap[wAID >> 3] |=  byMask[wAID & 7];
1462                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1463                                iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1464                     return true;
1465                 }
1466                 else {
1467                     bRelayOnly = true;
1468                 }
1469             }
1470         }
1471     }
1472
1473     if (bRelayOnly || bRelayAndForward) {
1474         // relay this packet right now
1475         if (bRelayAndForward)
1476             iDANodeIndex = 0;
1477
1478         if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1479             ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1480         }
1481
1482         if (bRelayOnly)
1483             return false;
1484     }
1485     // none associate, don't forward
1486     if (pDevice->uAssocCount == 0)
1487         return false;
1488
1489     return true;
1490 }
1491