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 /*---------------------  Static Definitions -------------------------*/
  59
  60 /*---------------------  Static Classes  ----------------------------*/
  61
  62 /*---------------------  Static Variables  --------------------------*/
  63 static int msglevel = MSG_LEVEL_INFO;
  64
  65 const unsigned char acbyRxRate[MAX_RATE] =
  66 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
  67
  68 /*---------------------  Static Functions  --------------------------*/
  69
  70 /*---------------------  Static Definitions -------------------------*/
  71
  72 /*---------------------  Static Functions  --------------------------*/
  73
  74 static unsigned char s_byGetRateIdx(unsigned char byRate);
  75
  76 static void
  77 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
  78            PSEthernetHeader psEthHeader);
  79
  80 static void
  81 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
  82                       unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
  83                       unsigned int *pcbHeadSize);
  84
  85 static bool s_bAPModeRxCtl(
  86         PSDevice pDevice,
  87         unsigned char *pbyFrame,
  88         int      iSANodeIndex
  89 );
  90
  91 static bool s_bAPModeRxData(
  92         PSDevice pDevice,
  93         struct sk_buff *skb,
  94         unsigned int FrameSize,
  95         unsigned int cbHeaderOffset,
  96         int      iSANodeIndex,
  97         int      iDANodeIndex
  98 );
  99
 100 static bool s_bHandleRxEncryption(
 101         PSDevice     pDevice,
 102         unsigned char *pbyFrame,
 103         unsigned int FrameSize,
 104         unsigned char *pbyRsr,
 105         unsigned char *pbyNewRsr,
 106         PSKeyItem   *pKeyOut,
 107         bool *pbExtIV,
 108         unsigned short *pwRxTSC15_0,
 109         unsigned long *pdwRxTSC47_16
 110 );
 111
 112 static bool s_bHostWepRxEncryption(
 113
 114         PSDevice     pDevice,
 115         unsigned char *pbyFrame,
 116         unsigned int FrameSize,
 117         unsigned char *pbyRsr,
 118         bool bOnFly,
 119         PSKeyItem    pKey,
 120         unsigned char *pbyNewRsr,
 121         bool *pbExtIV,
 122         unsigned short *pwRxTSC15_0,
 123         unsigned long *pdwRxTSC47_16
 124
 125 );
 126
 127 /*---------------------  Export Variables  --------------------------*/
 128
 129 /*+
 130  *
 131  * Description:
 132  *    Translate Rcv 802.11 header to 802.3 header with Rx buffer
 133  *
 134  * Parameters:
 135  *  In:
 136  *      pDevice
 137  *      dwRxBufferAddr  - Address of Rcv Buffer
 138  *      cbPacketSize    - Rcv Packet size
 139  *      bIsWEP          - If Rcv with WEP
 140  *  Out:
 141  *      pcbHeaderSize   - 802.11 header size
 142  *
 143  * Return Value: None
 144  *
 145  -*/
 146 static void
 147 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
 148                       unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
 149                       unsigned int *pcbHeadSize)
 150 {
 151         unsigned char *pbyRxBuffer;
 152         unsigned int cbHeaderSize = 0;
 153         unsigned short *pwType;
 154         PS802_11Header  pMACHeader;
 155         int             ii;
 156
 157         pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
 158
 159         s_vGetDASA((unsigned char *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
 160
 161         if (bIsWEP) {
 162                 if (bExtIV) {
 163                         // strip IV&ExtIV , add 8 byte
 164                         cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
 165                 } else {
 166                         // strip IV , add 4 byte
 167                         cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
 168                 }
 169         } else {
 170                 cbHeaderSize += WLAN_HDR_ADDR3_LEN;
 171         }
 172
 173         pbyRxBuffer = (unsigned char *)(pbyRxBufferAddr + cbHeaderSize);
 174         if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
 175                 cbHeaderSize += 6;
 176         } else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
 177                 cbHeaderSize += 6;
 178                 pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
 179                 if ((*pwType != TYPE_PKT_IPX) && (*pwType != cpu_to_le16(0xF380))) {
 180                 } else {
 181                         cbHeaderSize -= 8;
 182                         pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
 183                         if (bIsWEP) {
 184                                 if (bExtIV) {
 185                                         *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 186                                 } else {
 187                                         *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 188                                 }
 189                         } else {
 190                                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 191                         }
 192                 }
 193         } else {
 194                 cbHeaderSize -= 2;
 195                 pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
 196                 if (bIsWEP) {
 197                         if (bExtIV) {
 198                                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 199                         } else {
 200                                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 201                         }
 202                 } else {
 203                         *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 204                 }
 205         }
 206
 207         cbHeaderSize -= (ETH_ALEN * 2);
 208         pbyRxBuffer = (unsigned char *)(pbyRxBufferAddr + cbHeaderSize);
 209         for (ii = 0; ii < ETH_ALEN; ii++)
 210                 *pbyRxBuffer++ = pDevice->sRxEthHeader.abyDstAddr[ii];
 211         for (ii = 0; ii < ETH_ALEN; ii++)
 212                 *pbyRxBuffer++ = pDevice->sRxEthHeader.abySrcAddr[ii];
 213
 214         *pcbHeadSize = cbHeaderSize;
 215 }
 216
 217 static unsigned char s_byGetRateIdx(unsigned char byRate)
 218 {
 219         unsigned char byRateIdx;
 220
 221         for (byRateIdx = 0; byRateIdx < MAX_RATE; byRateIdx++) {
 222                 if (acbyRxRate[byRateIdx % MAX_RATE] == byRate)
 223                         return byRateIdx;
 224         }
 225         return 0;
 226 }
 227
 228 static void
 229 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
 230            PSEthernetHeader psEthHeader)
 231 {
 232         unsigned int cbHeaderSize = 0;
 233         PS802_11Header  pMACHeader;
 234         int             ii;
 235
 236         pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
 237
 238         if ((pMACHeader->wFrameCtl & FC_TODS) == 0) {
 239                 if (pMACHeader->wFrameCtl & FC_FROMDS) {
 240                         for (ii = 0; ii < ETH_ALEN; ii++) {
 241                                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
 242                                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr3[ii];
 243                         }
 244                 } else {
 245                         // IBSS mode
 246                         for (ii = 0; ii < ETH_ALEN; ii++) {
 247                                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
 248                                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
 249                         }
 250                 }
 251         } else {
 252                 // Is AP mode..
 253                 if (pMACHeader->wFrameCtl & FC_FROMDS) {
 254                         for (ii = 0; ii < ETH_ALEN; ii++) {
 255                                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
 256                                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr4[ii];
 257                                 cbHeaderSize += 6;
 258                         }
 259                 } else {
 260                         for (ii = 0; ii < ETH_ALEN; ii++) {
 261                                 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
 262                                 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
 263                         }
 264                 }
 265         }
 266         *pcbHeaderSize = cbHeaderSize;
 267 }
 268
 269 //PLICE_DEBUG ->
 270
 271 void    MngWorkItem(void *Context)
 272 {
 273         PSRxMgmtPacket                  pRxMgmtPacket;
 274         PSDevice        pDevice =  (PSDevice) Context;
 275
 276         spin_lock_irq(&pDevice->lock);
 277         while (pDevice->rxManeQueue.packet_num != 0) {
 278                 pRxMgmtPacket =  DeQueue(pDevice);
 279                 vMgrRxManagePacket(pDevice, pDevice->pMgmt, pRxMgmtPacket);
 280         }
 281         spin_unlock_irq(&pDevice->lock);
 282 }
 283
 284 //PLICE_DEBUG<-
 285
 286 bool
 287 device_receive_frame(
 288         PSDevice pDevice,
 289         PSRxDesc pCurrRD
 290 )
 291 {
 292         PDEVICE_RD_INFO  pRDInfo = pCurrRD->pRDInfo;
 293         struct net_device_stats *pStats = &pDevice->stats;
 294         struct sk_buff *skb;
 295         PSMgmtObject    pMgmt = pDevice->pMgmt;
 296         PSRxMgmtPacket  pRxPacket = &(pDevice->pMgmt->sRxPacket);
 297         PS802_11Header  p802_11Header;
 298         unsigned char *pbyRsr;
 299         unsigned char *pbyNewRsr;
 300         unsigned char *pbyRSSI;
 301         PQWORD          pqwTSFTime;
 302         unsigned short *pwFrameSize;
 303         unsigned char *pbyFrame;
 304         bool bDeFragRx = false;
 305         bool bIsWEP = false;
 306         unsigned int cbHeaderOffset;
 307         unsigned int FrameSize;
 308         unsigned short wEtherType = 0;
 309         int             iSANodeIndex = -1;
 310         int             iDANodeIndex = -1;
 311         unsigned int ii;
 312         unsigned int cbIVOffset;
 313         bool bExtIV = false;
 314         unsigned char *pbyRxSts;
 315         unsigned char *pbyRxRate;
 316         unsigned char *pbySQ;
 317         unsigned int cbHeaderSize;
 318         PSKeyItem       pKey = NULL;
 319         unsigned short wRxTSC15_0 = 0;
 320         unsigned long dwRxTSC47_16 = 0;
 321         SKeyItem        STempKey;
 322         // 802.11h RPI
 323         unsigned long dwDuration = 0;
 324         long            ldBm = 0;
 325         long            ldBmThreshold = 0;
 326         PS802_11Header pMACHeader;
 327         bool bRxeapol_key = false;
 328
 329         skb = pRDInfo->skb;
 330
 331 //PLICE_DEBUG->
 332         pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
 333                          pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
 334 //PLICE_DEBUG<-
 335         pwFrameSize = (unsigned short *)(skb->data + 2);
 336         FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
 337
 338         // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
 339         // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
 340         if ((FrameSize > 2364) || (FrameSize <= 32)) {
 341                 // Frame Size error drop this packet.
 342                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 1 \n");
 343                 return false;
 344         }
 345
 346         pbyRxSts = (unsigned char *)(skb->data);
 347         pbyRxRate = (unsigned char *)(skb->data + 1);
 348         pbyRsr = (unsigned char *)(skb->data + FrameSize - 1);
 349         pbyRSSI = (unsigned char *)(skb->data + FrameSize - 2);
 350         pbyNewRsr = (unsigned char *)(skb->data + FrameSize - 3);
 351         pbySQ = (unsigned char *)(skb->data + FrameSize - 4);
 352         pqwTSFTime = (PQWORD)(skb->data + FrameSize - 12);
 353         pbyFrame = (unsigned char *)(skb->data + 4);
 354
 355         // get packet size
 356         FrameSize = cpu_to_le16(*pwFrameSize);
 357
 358         if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
 359                 // Min: 14 bytes ACK
 360                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2 \n");
 361                 return false;
 362         }
 363 //PLICE_DEBUG->
 364         // update receive statistic counter
 365         STAvUpdateRDStatCounter(&pDevice->scStatistic,
 366                                 *pbyRsr,
 367                                 *pbyNewRsr,
 368                                 *pbyRxRate,
 369                                 pbyFrame,
 370                                 FrameSize);
 371
 372         pMACHeader = (PS802_11Header)((unsigned char *)(skb->data) + 8);
 373 //PLICE_DEBUG<-
 374         if (pDevice->bMeasureInProgress) {
 375                 if ((*pbyRsr & RSR_CRCOK) != 0) {
 376                         pDevice->byBasicMap |= 0x01;
 377                 }
 378                 dwDuration = (FrameSize << 4);
 379                 dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
 380                 if (*pbyRxRate <= RATE_11M) {
 381                         if (*pbyRxSts & 0x01) {
 382                                 // long preamble
 383                                 dwDuration += 192;
 384                         } else {
 385                                 // short preamble
 386                                 dwDuration += 96;
 387                         }
 388                 } else {
 389                         dwDuration += 16;
 390                 }
 391                 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
 392                 ldBmThreshold = -57;
 393                 for (ii = 7; ii > 0;) {
 394                         if (ldBm > ldBmThreshold) {
 395                                 break;
 396                         }
 397                         ldBmThreshold -= 5;
 398                         ii--;
 399                 }
 400                 pDevice->dwRPIs[ii] += dwDuration;
 401                 return false;
 402         }
 403
 404         if (!is_multicast_ether_addr(pbyFrame)) {
 405                 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header)(skb->data + 4))) {
 406                         pDevice->s802_11Counter.FrameDuplicateCount++;
 407                         return false;
 408                 }
 409         }
 410
 411         // Use for TKIP MIC
 412         s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
 413
 414         // filter packet send from myself
 415         if (ether_addr_equal(pDevice->sRxEthHeader.abySrcAddr,
 416                              pDevice->abyCurrentNetAddr))
 417                 return false;
 418
 419         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
 420                 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
 421                         p802_11Header = (PS802_11Header)(pbyFrame);
 422                         // get SA NodeIndex
 423                         if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
 424                                 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
 425                                 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
 426                         }
 427                 }
 428         }
 429
 430         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 431                 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex)) {
 432                         return false;
 433                 }
 434         }
 435
 436         if (IS_FC_WEP(pbyFrame)) {
 437                 bool bRxDecryOK = false;
 438
 439                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx WEP pkt\n");
 440                 bIsWEP = true;
 441                 if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
 442                         pKey = &STempKey;
 443                         pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
 444                         pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
 445                         pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
 446                         pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
 447                         pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
 448                         memcpy(pKey->abyKey,
 449                                &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
 450                                pKey->uKeyLength
 451 );
 452
 453                         bRxDecryOK = s_bHostWepRxEncryption(pDevice,
 454                                                             pbyFrame,
 455                                                             FrameSize,
 456                                                             pbyRsr,
 457                                                             pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
 458                                                             pKey,
 459                                                             pbyNewRsr,
 460                                                             &bExtIV,
 461                                                             &wRxTSC15_0,
 462                                                             &dwRxTSC47_16);
 463                 } else {
 464                         bRxDecryOK = s_bHandleRxEncryption(pDevice,
 465                                                            pbyFrame,
 466                                                            FrameSize,
 467                                                            pbyRsr,
 468                                                            pbyNewRsr,
 469                                                            &pKey,
 470                                                            &bExtIV,
 471                                                            &wRxTSC15_0,
 472                                                            &dwRxTSC47_16);
 473                 }
 474
 475                 if (bRxDecryOK) {
 476                         if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
 477                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV Fail\n");
 478                                 if ((pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
 479                                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
 480                                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
 481                                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
 482                                     (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
 483                                         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 484                                                 pDevice->s802_11Counter.TKIPICVErrors++;
 485                                         } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
 486                                                 pDevice->s802_11Counter.CCMPDecryptErrors++;
 487                                         }
 488                                 }
 489                                 return false;
 490                         }
 491                 } else {
 492                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "WEP Func Fail\n");
 493                         return false;
 494                 }
 495                 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
 496                         FrameSize -= 8;         // Message Integrity Code
 497                 else
 498                         FrameSize -= 4;         // 4 is ICV
 499         }
 500
 501         //
 502         // RX OK
 503         //
 504         //remove the CRC length
 505         FrameSize -= ETH_FCS_LEN;
 506
 507         if ((!(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
 508             (IS_FRAGMENT_PKT((skb->data+4)))
 509 ) {
 510                 // defragment
 511                 bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header)(skb->data+4), FrameSize, bIsWEP, bExtIV);
 512                 pDevice->s802_11Counter.ReceivedFragmentCount++;
 513                 if (bDeFragRx) {
 514                         // defrag complete
 515                         skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
 516                         FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
 517
 518                 } else {
 519                         return false;
 520                 }
 521         }
 522
 523 // Management & Control frame Handle
 524         if ((IS_TYPE_DATA((skb->data+4))) == false) {
 525                 // Handle Control & Manage Frame
 526
 527                 if (IS_TYPE_MGMT((skb->data+4))) {
 528                         unsigned char *pbyData1;
 529                         unsigned char *pbyData2;
 530
 531                         pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
 532                         pRxPacket->cbMPDULen = FrameSize;
 533                         pRxPacket->uRSSI = *pbyRSSI;
 534                         pRxPacket->bySQ = *pbySQ;
 535                         HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
 536                         LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
 537                         if (bIsWEP) {
 538                                 // strip IV
 539                                 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
 540                                 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
 541                                 for (ii = 0; ii < (FrameSize - 4); ii++) {
 542                                         *pbyData1 = *pbyData2;
 543                                         pbyData1++;
 544                                         pbyData2++;
 545                                 }
 546                         }
 547                         pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
 548                         pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
 549 //PLICE_DEBUG->
 550
 551 #ifdef  THREAD
 552                         EnQueue(pDevice, pRxPacket);
 553 #else
 554
 555 #ifdef  TASK_LET
 556                         EnQueue(pDevice, pRxPacket);
 557                         tasklet_schedule(&pDevice->RxMngWorkItem);
 558 #else
 559                         vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
 560 #endif
 561
 562 #endif
 563 //PLICE_DEBUG<-
 564                         // hostap Deamon handle 802.11 management
 565                         if (pDevice->bEnableHostapd) {
 566                                 skb->dev = pDevice->apdev;
 567                                 skb->data += 4;
 568                                 skb->tail += 4;
 569                                 skb_put(skb, FrameSize);
 570                                 skb_reset_mac_header(skb);
 571                                 skb->pkt_type = PACKET_OTHERHOST;
 572                                 skb->protocol = htons(ETH_P_802_2);
 573                                 memset(skb->cb, 0, sizeof(skb->cb));
 574                                 netif_rx(skb);
 575                                 return true;
 576                         }
 577                 }
 578
 579                 return false;
 580         } else {
 581                 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 582                         //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
 583                         if (!(*pbyRsr & RSR_BSSIDOK)) {
 584                                 if (bDeFragRx) {
 585                                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 586                                                 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 587                                                         pDevice->dev->name);
 588                                         }
 589                                 }
 590                                 return false;
 591                         }
 592                 } else {
 593                         // discard DATA packet while not associate || BSSID error
 594                         if (!pDevice->bLinkPass || !(*pbyRsr & RSR_BSSIDOK)) {
 595                                 if (bDeFragRx) {
 596                                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 597                                                 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 598                                                         pDevice->dev->name);
 599                                         }
 600                                 }
 601                                 return false;
 602                         }
 603                         //mike add:station mode check eapol-key challenge--->
 604                         {
 605                                 unsigned char Protocol_Version;    //802.1x Authentication
 606                                 unsigned char Packet_Type;           //802.1x Authentication
 607                                 if (bIsWEP)
 608                                         cbIVOffset = 8;
 609                                 else
 610                                         cbIVOffset = 0;
 611                                 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
 612                                         skb->data[cbIVOffset + 8 + 24 + 6 + 1];
 613                                 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 + 1];
 614                                 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 + 1 + 1];
 615                                 if (wEtherType == ETH_P_PAE) {         //Protocol Type in LLC-Header
 616                                         if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
 617                                             (Packet_Type == 3)) {  //802.1x OR eapol-key challenge frame receive
 618                                                 bRxeapol_key = true;
 619                                         }
 620                                 }
 621                         }
 622                         //mike add:station mode check eapol-key challenge<---
 623                 }
 624         }
 625
 626 // Data frame Handle
 627
 628         if (pDevice->bEnablePSMode) {
 629                 if (!IS_FC_MOREDATA((skb->data+4))) {
 630                         if (pDevice->pMgmt->bInTIMWake == true)
 631                                 pDevice->pMgmt->bInTIMWake = false;
 632                 }
 633         }
 634
 635         // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
 636         if (pDevice->bDiversityEnable && (FrameSize > 50) &&
 637             (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
 638             pDevice->bLinkPass) {
 639                 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
 640         }
 641
 642         if (pDevice->byLocalID != REV_ID_VT3253_B1) {
 643                 pDevice->uCurrRSSI = *pbyRSSI;
 644         }
 645         pDevice->byCurrSQ = *pbySQ;
 646
 647         if ((*pbyRSSI != 0) &&
 648             (pMgmt->pCurrBSS != NULL)) {
 649                 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
 650                 // Monitor if RSSI is too strong.
 651                 pMgmt->pCurrBSS->byRSSIStatCnt++;
 652                 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
 653                 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
 654                 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
 655                         if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
 656                                 pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
 657                         }
 658                 }
 659         }
 660
 661         // -----------------------------------------------
 662
 663         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && pDevice->bEnable8021x) {
 664                 unsigned char abyMacHdr[24];
 665
 666                 // Only 802.1x packet incoming allowed
 667                 if (bIsWEP)
 668                         cbIVOffset = 8;
 669                 else
 670                         cbIVOffset = 0;
 671                 wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
 672                         skb->data[cbIVOffset + 4 + 24 + 6 + 1];
 673
 674                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wEtherType = %04x \n", wEtherType);
 675                 if (wEtherType == ETH_P_PAE) {
 676                         skb->dev = pDevice->apdev;
 677
 678                         if (bIsWEP) {
 679                                 // strip IV header(8)
 680                                 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
 681                                 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
 682                         }
 683                         skb->data +=  (cbIVOffset + 4);
 684                         skb->tail +=  (cbIVOffset + 4);
 685                         skb_put(skb, FrameSize);
 686                         skb_reset_mac_header(skb);
 687
 688                         skb->pkt_type = PACKET_OTHERHOST;
 689                         skb->protocol = htons(ETH_P_802_2);
 690                         memset(skb->cb, 0, sizeof(skb->cb));
 691                         netif_rx(skb);
 692                         return true;
 693
 694                 }
 695                 // check if 802.1x authorized
 696                 if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
 697                         return false;
 698         }
 699
 700         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 701                 if (bIsWEP) {
 702                         FrameSize -= 8;  //MIC
 703                 }
 704         }
 705
 706         //--------------------------------------------------------------------------------
 707         // Soft MIC
 708         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 709                 if (bIsWEP) {
 710                         __le32 *pdwMIC_L;
 711                         __le32 *pdwMIC_R;
 712                         __le32 dwMIC_Priority;
 713                         __le32 dwMICKey0 = 0, dwMICKey1 = 0;
 714                         u32 dwLocalMIC_L = 0;
 715                         u32 dwLocalMIC_R = 0;
 716                         viawget_wpa_header *wpahdr;
 717
 718                         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 719                                 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
 720                                 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
 721                         } else {
 722                                 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
 723                                         dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
 724                                         dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
 725                                 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
 726                                         dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
 727                                         dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
 728                                 } else {
 729                                         dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
 730                                         dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
 731                                 }
 732                         }
 733
 734                         MIC_vInit(dwMICKey0, dwMICKey1);
 735                         MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
 736                         dwMIC_Priority = 0;
 737                         MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
 738                         // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
 739                         MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
 740                                     FrameSize - WLAN_HDR_ADDR3_LEN - 8);
 741                         MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
 742                         MIC_vUnInit();
 743
 744                         pdwMIC_L = (__le32 *)(skb->data + 4 + FrameSize);
 745                         pdwMIC_R = (__le32 *)(skb->data + 4 + FrameSize + 4);
 746
 747                         if ((le32_to_cpu(*pdwMIC_L) != dwLocalMIC_L) ||
 748                             (le32_to_cpu(*pdwMIC_R) != dwLocalMIC_R) ||
 749                             pDevice->bRxMICFail) {
 750                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "MIC comparison is fail!\n");
 751                                 pDevice->bRxMICFail = false;
 752                                 pDevice->s802_11Counter.TKIPLocalMICFailures++;
 753                                 if (bDeFragRx) {
 754                                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 755                                                 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 756                                                         pDevice->dev->name);
 757                                         }
 758                                 }
 759                                 //2008-0409-07, <Add> by Einsn Liu
 760 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
 761                                 //send event to wpa_supplicant
 762                                 {
 763                                         union iwreq_data wrqu;
 764                                         struct iw_michaelmicfailure ev;
 765                                         int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
 766                                         memset(&ev, 0, sizeof(ev));
 767                                         ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
 768                                         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 769                                             (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
 770                                             (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
 771                                                 ev.flags |= IW_MICFAILURE_PAIRWISE;
 772                                         } else {
 773                                                 ev.flags |= IW_MICFAILURE_GROUP;
 774                                         }
 775
 776                                         ev.src_addr.sa_family = ARPHRD_ETHER;
 777                                         memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
 778                                         memset(&wrqu, 0, sizeof(wrqu));
 779                                         wrqu.data.length = sizeof(ev);
 780                                         wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
 781
 782                                 }
 783 #endif
 784
 785                                 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
 786                                         wpahdr = (viawget_wpa_header *)pDevice->skb->data;
 787                                         if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 788                                             (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
 789                                             (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
 790                                                 wpahdr->type = VIAWGET_PTK_MIC_MSG;
 791                                         } else {
 792                                                 wpahdr->type = VIAWGET_GTK_MIC_MSG;
 793                                         }
 794                                         wpahdr->resp_ie_len = 0;
 795                                         wpahdr->req_ie_len = 0;
 796                                         skb_put(pDevice->skb, sizeof(viawget_wpa_header));
 797                                         pDevice->skb->dev = pDevice->wpadev;
 798                                         skb_reset_mac_header(pDevice->skb);
 799                                         pDevice->skb->pkt_type = PACKET_HOST;
 800                                         pDevice->skb->protocol = htons(ETH_P_802_2);
 801                                         memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
 802                                         netif_rx(pDevice->skb);
 803                                         pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
 804                                 }
 805
 806                                 return false;
 807
 808                         }
 809                 }
 810         } //---end of SOFT MIC-----------------------------------------------------------------------
 811
 812         // ++++++++++ Reply Counter Check +++++++++++++
 813
 814         if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
 815                                (pKey->byCipherSuite == KEY_CTL_CCMP))) {
 816                 if (bIsWEP) {
 817                         unsigned short wLocalTSC15_0 = 0;
 818                         unsigned long dwLocalTSC47_16 = 0;
 819                         unsigned long long       RSC = 0;
 820                         // endian issues
 821                         RSC = *((unsigned long long *)&(pKey->KeyRSC));
 822                         wLocalTSC15_0 = (unsigned short)RSC;
 823                         dwLocalTSC47_16 = (unsigned long)(RSC>>16);
 824
 825                         RSC = dwRxTSC47_16;
 826                         RSC <<= 16;
 827                         RSC += wRxTSC15_0;
 828                         memcpy(&(pKey->KeyRSC), &RSC,  sizeof(QWORD));
 829
 830                         if ((pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
 831                             (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
 832                                 // check RSC
 833                                 if ((wRxTSC15_0 < wLocalTSC15_0) &&
 834                                     (dwRxTSC47_16 <= dwLocalTSC47_16) &&
 835                                     !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
 836                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC is illegal~~!\n ");
 837                                         if (pKey->byCipherSuite == KEY_CTL_TKIP)
 838                                                 pDevice->s802_11Counter.TKIPReplays++;
 839                                         else
 840                                                 pDevice->s802_11Counter.CCMPReplays++;
 841
 842                                         if (bDeFragRx) {
 843                                                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 844                                                         DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 845                                                                 pDevice->dev->name);
 846                                                 }
 847                                         }
 848                                         return false;
 849                                 }
 850                         }
 851                 }
 852         } // ----- End of Reply Counter Check --------------------------
 853
 854         s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
 855         FrameSize -= cbHeaderOffset;
 856         cbHeaderOffset += 4;        // 4 is Rcv buffer header
 857
 858         // Null data, framesize = 14
 859         if (FrameSize < 15)
 860                 return false;
 861
 862         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 863                 if (!s_bAPModeRxData(pDevice,
 864                                     skb,
 865                                     FrameSize,
 866                                     cbHeaderOffset,
 867                                     iSANodeIndex,
 868                                     iDANodeIndex
 869 )) {
 870                         if (bDeFragRx) {
 871                                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 872                                         DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 873                                                 pDevice->dev->name);
 874                                 }
 875                         }
 876                         return false;
 877                 }
 878         }
 879
 880         skb->data += cbHeaderOffset;
 881         skb->tail += cbHeaderOffset;
 882         skb_put(skb, FrameSize);
 883         skb->protocol = eth_type_trans(skb, skb->dev);
 884
 885         //drop frame not met IEEE 802.3
 886
 887         skb->ip_summed = CHECKSUM_NONE;
 888         pStats->rx_bytes += skb->len;
 889         pStats->rx_packets++;
 890         netif_rx(skb);
 891
 892         if (bDeFragRx) {
 893                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 894                         DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
 895                                 pDevice->dev->name);
 896                 }
 897                 return false;
 898         }
 899
 900         return true;
 901 }
 902
 903 static bool s_bAPModeRxCtl(
 904         PSDevice pDevice,
 905         unsigned char *pbyFrame,
 906         int      iSANodeIndex
 907 )
 908 {
 909         PS802_11Header      p802_11Header;
 910         CMD_STATUS          Status;
 911         PSMgmtObject        pMgmt = pDevice->pMgmt;
 912
 913         if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
 914                 p802_11Header = (PS802_11Header)(pbyFrame);
 915                 if (!IS_TYPE_MGMT(pbyFrame)) {
 916                         // Data & PS-Poll packet
 917                         // check frame class
 918                         if (iSANodeIndex > 0) {
 919                                 // frame class 3 fliter & checking
 920                                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
 921                                         // send deauth notification
 922                                         // reason = (6) class 2 received from nonauth sta
 923                                         vMgrDeAuthenBeginSta(pDevice,
 924                                                              pMgmt,
 925                                                              (unsigned char *)(p802_11Header->abyAddr2),
 926                                                              (WLAN_MGMT_REASON_CLASS2_NONAUTH),
 927                                                              &Status
 928 );
 929                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
 930                                         return true;
 931                                 }
 932                                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
 933                                         // send deassoc notification
 934                                         // reason = (7) class 3 received from nonassoc sta
 935                                         vMgrDisassocBeginSta(pDevice,
 936                                                              pMgmt,
 937                                                              (unsigned char *)(p802_11Header->abyAddr2),
 938                                                              (WLAN_MGMT_REASON_CLASS3_NONASSOC),
 939                                                              &Status
 940 );
 941                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
 942                                         return true;
 943                                 }
 944
 945                                 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
 946                                         // delcare received ps-poll event
 947                                         if (IS_CTL_PSPOLL(pbyFrame)) {
 948                                                 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 949                                                 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
 950                                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
 951                                         } else {
 952                                                 // check Data PS state
 953                                                 // if PW bit off, send out all PS bufferring packets.
 954                                                 if (!IS_FC_POWERMGT(pbyFrame)) {
 955                                                         pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
 956                                                         pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 957                                                         bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
 958                                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
 959                                                 }
 960                                         }
 961                                 } else {
 962                                         if (IS_FC_POWERMGT(pbyFrame)) {
 963                                                 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
 964                                                 // Once if STA in PS state, enable multicast bufferring
 965                                                 pMgmt->sNodeDBTable[0].bPSEnable = true;
 966                                         } else {
 967                                                 // clear all pending PS frame.
 968                                                 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
 969                                                         pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
 970                                                         pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 971                                                         bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
 972                                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
 973
 974                                                 }
 975                                         }
 976                                 }
 977                         } else {
 978                                 vMgrDeAuthenBeginSta(pDevice,
 979                                                      pMgmt,
 980                                                      (unsigned char *)(p802_11Header->abyAddr2),
 981                                                      (WLAN_MGMT_REASON_CLASS2_NONAUTH),
 982                                                      &Status
 983 );
 984                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
 985                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
 986                                         p802_11Header->abyAddr3);
 987                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
 988                                         p802_11Header->abyAddr2);
 989                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
 990                                         p802_11Header->abyAddr1);
 991                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl);
 992                                 VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
 993                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode);
 994                                 return true;
 995                         }
 996                 }
 997         }
 998         return false;
 999 }
1000
1001 static bool s_bHandleRxEncryption(
1002         PSDevice     pDevice,
1003         unsigned char *pbyFrame,
1004         unsigned int FrameSize,
1005         unsigned char *pbyRsr,
1006         unsigned char *pbyNewRsr,
1007         PSKeyItem   *pKeyOut,
1008         bool *pbExtIV,
1009         unsigned short *pwRxTSC15_0,
1010         unsigned long *pdwRxTSC47_16
1011 )
1012 {
1013         unsigned int PayloadLen = FrameSize;
1014         unsigned char *pbyIV;
1015         unsigned char byKeyIdx;
1016         PSKeyItem       pKey = NULL;
1017         unsigned char byDecMode = KEY_CTL_WEP;
1018         PSMgmtObject    pMgmt = pDevice->pMgmt;
1019
1020         *pwRxTSC15_0 = 0;
1021         *pdwRxTSC47_16 = 0;
1022
1023         pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1024         if (WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1025             WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame)) {
1026                 pbyIV += 6;             // 6 is 802.11 address4
1027                 PayloadLen -= 6;
1028         }
1029         byKeyIdx = (*(pbyIV+3) & 0xc0);
1030         byKeyIdx >>= 6;
1031         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "\nKeyIdx: %d\n", byKeyIdx);
1032
1033         if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1034             (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1035             (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1036             (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1037             (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1038                 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1039                     (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1040                         // unicast pkt use pairwise key
1041                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "unicast pkt\n");
1042                         if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1043                                 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1044                                         byDecMode = KEY_CTL_TKIP;
1045                                 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1046                                         byDecMode = KEY_CTL_CCMP;
1047                         }
1048                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "unicast pkt: %d, %p\n", byDecMode, pKey);
1049                 } else {
1050                         // use group key
1051                         KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1052                         if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1053                                 byDecMode = KEY_CTL_TKIP;
1054                         else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1055                                 byDecMode = KEY_CTL_CCMP;
1056                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1057                 }
1058         }
1059         // our WEP only support Default Key
1060         if (pKey == NULL) {
1061                 // use default group key
1062                 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1063                 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1064                         byDecMode = KEY_CTL_TKIP;
1065                 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1066                         byDecMode = KEY_CTL_CCMP;
1067         }
1068         *pKeyOut = pKey;
1069
1070         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1071
1072         if (pKey == NULL) {
1073                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pKey == NULL\n");
1074
1075                 return false;
1076         }
1077         if (byDecMode != pKey->byCipherSuite) {
1078
1079                 *pKeyOut = NULL;
1080                 return false;
1081         }
1082         if (byDecMode == KEY_CTL_WEP) {
1083                 // handle WEP
1084                 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1085                     (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1086                         // Software WEP
1087                         // 1. 3253A
1088                         // 2. WEP 256
1089
1090                         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1091                         memcpy(pDevice->abyPRNG, pbyIV, 3);
1092                         memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1093                         rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1094                         rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1095
1096                         if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1097                                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1098                         }
1099                 }
1100         } else if ((byDecMode == KEY_CTL_TKIP) ||
1101                    (byDecMode == KEY_CTL_CCMP)) {
1102                 // TKIP/AES
1103
1104                 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1105                 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1106                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ExtIV: %lx\n", *pdwRxTSC47_16);
1107                 if (byDecMode == KEY_CTL_TKIP) {
1108                         *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV + 2), *pbyIV));
1109                 } else {
1110                         *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1111                 }
1112                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC0_15: %x\n", *pwRxTSC15_0);
1113
1114                 if ((byDecMode == KEY_CTL_TKIP) &&
1115                     (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1116                         // Software TKIP
1117                         // 1. 3253 A
1118                         PS802_11Header  pMACHeader = (PS802_11Header)(pbyFrame);
1119                         TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1120                         rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1121                         rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1122                         if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1123                                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1124                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV OK!\n");
1125                         } else {
1126                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV FAIL!!!\n");
1127                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PayloadLen = %d\n", PayloadLen);
1128                         }
1129                 }
1130         }// end of TKIP/AES
1131
1132         if ((*(pbyIV+3) & 0x20) != 0)
1133                 *pbExtIV = true;
1134         return true;
1135 }
1136
1137 static bool s_bHostWepRxEncryption(
1138         PSDevice     pDevice,
1139         unsigned char *pbyFrame,
1140         unsigned int FrameSize,
1141         unsigned char *pbyRsr,
1142         bool bOnFly,
1143         PSKeyItem    pKey,
1144         unsigned char *pbyNewRsr,
1145         bool *pbExtIV,
1146         unsigned short *pwRxTSC15_0,
1147         unsigned long *pdwRxTSC47_16
1148 )
1149 {
1150         unsigned int PayloadLen = FrameSize;
1151         unsigned char *pbyIV;
1152         unsigned char byKeyIdx;
1153         unsigned char byDecMode = KEY_CTL_WEP;
1154         PS802_11Header  pMACHeader;
1155
1156         *pwRxTSC15_0 = 0;
1157         *pdwRxTSC47_16 = 0;
1158
1159         pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1160         if (WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1161             WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame)) {
1162                 pbyIV += 6;             // 6 is 802.11 address4
1163                 PayloadLen -= 6;
1164         }
1165         byKeyIdx = (*(pbyIV+3) & 0xc0);
1166         byKeyIdx >>= 6;
1167         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "\nKeyIdx: %d\n", byKeyIdx);
1168
1169         if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1170                 byDecMode = KEY_CTL_TKIP;
1171         else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1172                 byDecMode = KEY_CTL_CCMP;
1173
1174         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1175
1176         if (byDecMode != pKey->byCipherSuite)
1177                 return false;
1178
1179         if (byDecMode == KEY_CTL_WEP) {
1180                 // handle WEP
1181                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "byDecMode == KEY_CTL_WEP \n");
1182                 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1183                     (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1184                     !bOnFly) {
1185                         // Software WEP
1186                         // 1. 3253A
1187                         // 2. WEP 256
1188                         // 3. NotOnFly
1189
1190                         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1191                         memcpy(pDevice->abyPRNG, pbyIV, 3);
1192                         memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1193                         rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1194                         rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1195
1196                         if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1197                                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1198                         }
1199                 }
1200         } else if ((byDecMode == KEY_CTL_TKIP) ||
1201                    (byDecMode == KEY_CTL_CCMP)) {
1202                 // TKIP/AES
1203
1204                 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1205                 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1206                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ExtIV: %lx\n", *pdwRxTSC47_16);
1207
1208                 if (byDecMode == KEY_CTL_TKIP) {
1209                         *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1210                 } else {
1211                         *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1212                 }
1213                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC0_15: %x\n", *pwRxTSC15_0);
1214
1215                 if (byDecMode == KEY_CTL_TKIP) {
1216                         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || !bOnFly) {
1217                                 // Software TKIP
1218                                 // 1. 3253 A
1219                                 // 2. NotOnFly
1220                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "soft KEY_CTL_TKIP \n");
1221                                 pMACHeader = (PS802_11Header)(pbyFrame);
1222                                 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1223                                 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1224                                 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1225                                 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1226                                         *pbyNewRsr |= NEWRSR_DECRYPTOK;
1227                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV OK!\n");
1228                                 } else {
1229                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV FAIL!!!\n");
1230                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PayloadLen = %d\n", PayloadLen);
1231                                 }
1232                         }
1233                 }
1234
1235                 if (byDecMode == KEY_CTL_CCMP) {
1236                         if (!bOnFly) {
1237                                 // Software CCMP
1238                                 // NotOnFly
1239                                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "soft KEY_CTL_CCMP\n");
1240                                 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1241                                         *pbyNewRsr |= NEWRSR_DECRYPTOK;
1242                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "CCMP MIC compare OK!\n");
1243                                 } else {
1244                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "CCMP MIC fail!\n");
1245                                 }
1246                         }
1247                 }
1248
1249         }// end of TKIP/AES
1250
1251         if ((*(pbyIV+3) & 0x20) != 0)
1252                 *pbExtIV = true;
1253         return true;
1254 }
1255
1256 static bool s_bAPModeRxData(
1257         PSDevice pDevice,
1258         struct sk_buff *skb,
1259         unsigned int FrameSize,
1260         unsigned int cbHeaderOffset,
1261         int      iSANodeIndex,
1262         int      iDANodeIndex
1263 )
1264 {
1265         PSMgmtObject        pMgmt = pDevice->pMgmt;
1266         bool bRelayAndForward = false;
1267         bool bRelayOnly = false;
1268         unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1269         unsigned short wAID;
1270
1271         struct sk_buff *skbcpy = NULL;
1272
1273         if (FrameSize > CB_MAX_BUF_SIZE)
1274                 return false;
1275         // check DA
1276         if (is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1277                 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1278                         skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1279
1280                         // if any node in PS mode, buffer packet until DTIM.
1281                         if (skbcpy == NULL) {
1282                                 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1283                         } else {
1284                                 skbcpy->dev = pDevice->dev;
1285                                 skbcpy->len = FrameSize;
1286                                 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1287                                 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1288
1289                                 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1290                                 // set tx map
1291                                 pMgmt->abyPSTxMap[0] |= byMask[0];
1292                         }
1293                 } else {
1294                         bRelayAndForward = true;
1295                 }
1296         } else {
1297                 // check if relay
1298                 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1299                         if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1300                                 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1301                                         // queue this skb until next PS tx, and then release.
1302
1303                                         skb->data += cbHeaderOffset;
1304                                         skb->tail += cbHeaderOffset;
1305                                         skb_put(skb, FrameSize);
1306                                         skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1307                                         pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1308                                         wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1309                                         pMgmt->abyPSTxMap[wAID >> 3] |=  byMask[wAID & 7];
1310                                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1311                                                 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1312                                         return true;
1313                                 } else {
1314                                         bRelayOnly = true;
1315                                 }
1316                         }
1317                 }
1318         }
1319
1320         if (bRelayOnly || bRelayAndForward) {
1321                 // relay this packet right now
1322                 if (bRelayAndForward)
1323                         iDANodeIndex = 0;
1324
1325                 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1326                         ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1327                 }
1328
1329                 if (bRelayOnly)
1330                         return false;
1331         }
1332         // none associate, don't forward
1333         if (pDevice->uAssocCount == 0)
1334                 return false;
1335
1336         return true;
1337 }