Pileus Git - ~andy/linux/blob - drivers/staging/vt6656/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 "dpc.h"
  42 #include "device.h"
  43 #include "rxtx.h"
  44 #include "tether.h"
  45 #include "card.h"
  46 #include "bssdb.h"
  47 #include "mac.h"
  48 #include "baseband.h"
  49 #include "michael.h"
  50 #include "tkip.h"
  51 #include "tcrc.h"
  52 #include "wctl.h"
  53 #include "hostap.h"
  54 #include "rf.h"
  55 #include "iowpa.h"
  56 #include "aes_ccmp.h"
  57 #include "datarate.h"
  58 #include "usbpipe.h"
  59
  60 //static int          msglevel                =MSG_LEVEL_DEBUG;
  61 static int          msglevel                =MSG_LEVEL_INFO;
  62
  63 static const u8 acbyRxRate[MAX_RATE] =
  64 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
  65
  66 static u8 s_byGetRateIdx(u8 byRate);
  67
  68 static
  69 void
  70 s_vGetDASA(
  71       u8 * pbyRxBufferAddr,
  72      unsigned int *pcbHeaderSize,
  73      struct ethhdr *psEthHeader
  74     );
  75
  76 static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
  77         u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
  78         u32 *pcbHeadSize);
  79
  80 static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
  81         s32 iSANodeIndex);
  82
  83 static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
  84         u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex);
  85
  86 static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
  87         u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
  88         s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16);
  89
  90 static int s_bHostWepRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
  91         u32 FrameSize, u8 *pbyRsr, int bOnFly, PSKeyItem pKey, u8 *pbyNewRsr,
  92         s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16);
  93
  94 /*+
  95  *
  96  * Description:
  97  *    Translate Rcv 802.11 header to 802.3 header with Rx buffer
  98  *
  99  * Parameters:
 100  *  In:
 101  *      pDevice
 102  *      dwRxBufferAddr  - Address of Rcv Buffer
 103  *      cbPacketSize    - Rcv Packet size
 104  *      bIsWEP          - If Rcv with WEP
 105  *  Out:
 106  *      pcbHeaderSize   - 802.11 header size
 107  *
 108  * Return Value: None
 109  *
 110 -*/
 111
 112 static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
 113         u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
 114         u32 *pcbHeadSize)
 115 {
 116         u8 *pbyRxBuffer;
 117         u32 cbHeaderSize = 0;
 118         u16 *pwType;
 119         struct ieee80211_hdr *pMACHeader;
 120         int ii;
 121
 122     pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
 123
 124     s_vGetDASA((u8 *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
 125
 126     if (bIsWEP) {
 127         if (bExtIV) {
 128             // strip IV&ExtIV , add 8 byte
 129             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
 130         } else {
 131             // strip IV , add 4 byte
 132             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
 133         }
 134     }
 135     else {
 136         cbHeaderSize += WLAN_HDR_ADDR3_LEN;
 137     };
 138
 139     pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
 140     if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
 141         cbHeaderSize += 6;
 142     } else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
 143         cbHeaderSize += 6;
 144         pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
 145         if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
 146             (*pwType == cpu_to_le16(0xF380))) {
 147                 cbHeaderSize -= 8;
 148             pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
 149             if (bIsWEP) {
 150                 if (bExtIV) {
 151                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 152                 } else {
 153                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 154                 }
 155             }
 156             else {
 157                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 158             }
 159         }
 160     }
 161     else {
 162         cbHeaderSize -= 2;
 163         pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
 164         if (bIsWEP) {
 165             if (bExtIV) {
 166                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
 167             } else {
 168                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
 169             }
 170         }
 171         else {
 172             *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
 173         }
 174     }
 175
 176     cbHeaderSize -= (ETH_ALEN * 2);
 177     pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
 178     for (ii = 0; ii < ETH_ALEN; ii++)
 179         *pbyRxBuffer++ = pDevice->sRxEthHeader.h_dest[ii];
 180     for (ii = 0; ii < ETH_ALEN; ii++)
 181         *pbyRxBuffer++ = pDevice->sRxEthHeader.h_source[ii];
 182
 183     *pcbHeadSize = cbHeaderSize;
 184 }
 185
 186 static u8 s_byGetRateIdx(u8 byRate)
 187 {
 188     u8    byRateIdx;
 189
 190     for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
 191         if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
 192             return byRateIdx;
 193     }
 194     return 0;
 195 }
 196
 197 static
 198 void
 199 s_vGetDASA (
 200       u8 * pbyRxBufferAddr,
 201      unsigned int *pcbHeaderSize,
 202      struct ethhdr *psEthHeader
 203     )
 204 {
 205         unsigned int            cbHeaderSize = 0;
 206         struct ieee80211_hdr *pMACHeader;
 207         int             ii;
 208
 209         pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
 210
 211         if ((pMACHeader->frame_control & FC_TODS) == 0) {
 212                 if (pMACHeader->frame_control & FC_FROMDS) {
 213                         for (ii = 0; ii < ETH_ALEN; ii++) {
 214                                 psEthHeader->h_dest[ii] =
 215                                         pMACHeader->addr1[ii];
 216                                 psEthHeader->h_source[ii] =
 217                                         pMACHeader->addr3[ii];
 218                         }
 219                 } else {
 220                         /* IBSS mode */
 221                         for (ii = 0; ii < ETH_ALEN; ii++) {
 222                                 psEthHeader->h_dest[ii] =
 223                                         pMACHeader->addr1[ii];
 224                                 psEthHeader->h_source[ii] =
 225                                         pMACHeader->addr2[ii];
 226                         }
 227                 }
 228         } else {
 229                 /* Is AP mode.. */
 230                 if (pMACHeader->frame_control & FC_FROMDS) {
 231                         for (ii = 0; ii < ETH_ALEN; ii++) {
 232                                 psEthHeader->h_dest[ii] =
 233                                         pMACHeader->addr3[ii];
 234                                 psEthHeader->h_source[ii] =
 235                                         pMACHeader->addr4[ii];
 236                                 cbHeaderSize += 6;
 237                         }
 238                 } else {
 239                         for (ii = 0; ii < ETH_ALEN; ii++) {
 240                                 psEthHeader->h_dest[ii] =
 241                                         pMACHeader->addr3[ii];
 242                                 psEthHeader->h_source[ii] =
 243                                         pMACHeader->addr2[ii];
 244                         }
 245                 }
 246         };
 247     *pcbHeaderSize = cbHeaderSize;
 248 }
 249
 250 int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
 251         unsigned long BytesToIndicate)
 252 {
 253         struct net_device_stats *pStats = &pDevice->stats;
 254         struct sk_buff *skb;
 255         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 256         struct vnt_rx_mgmt *pRxPacket = &pMgmt->sRxPacket;
 257         struct ieee80211_hdr *p802_11Header;
 258         u8 *pbyRsr, *pbyNewRsr, *pbyRSSI, *pbyFrame;
 259         u64 *pqwTSFTime;
 260         u32 bDeFragRx = false;
 261         u32 cbHeaderOffset, cbIVOffset;
 262         u32 FrameSize;
 263         u16 wEtherType = 0;
 264         s32 iSANodeIndex = -1, iDANodeIndex = -1;
 265         int ii;
 266         u8 *pbyRxSts, *pbyRxRate, *pbySQ, *pby3SQ;
 267         u32 cbHeaderSize;
 268         PSKeyItem pKey = NULL;
 269         u16 wRxTSC15_0 = 0;
 270         u32 dwRxTSC47_16 = 0;
 271         SKeyItem STempKey;
 272         /* signed long ldBm = 0; */
 273         int bIsWEP = false; int bExtIV = false;
 274         u32 dwWbkStatus;
 275         struct vnt_rcb *pRCBIndicate = pRCB;
 276         u8 *pbyDAddress;
 277         u16 *pwPLCP_Length;
 278         u8 abyVaildRate[MAX_RATE]
 279                 = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
 280         u16 wPLCPwithPadding;
 281         struct ieee80211_hdr *pMACHeader;
 282         int bRxeapol_key = false;
 283
 284     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- RXbBulkInProcessData---\n");
 285
 286     skb = pRCB->skb;
 287
 288         /* [31:16]RcvByteCount ( not include 4-byte Status ) */
 289         dwWbkStatus = *((u32 *)(skb->data));
 290         FrameSize = dwWbkStatus >> 16;
 291         FrameSize += 4;
 292
 293         if (BytesToIndicate != FrameSize) {
 294                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"------- WRONG Length 1\n");
 295                 pStats->rx_frame_errors++;
 296                 return false;
 297         }
 298
 299     if ((BytesToIndicate > 2372) || (BytesToIndicate <= 40)) {
 300         // Frame Size error drop this packet.
 301         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
 302         pStats->rx_frame_errors++;
 303         return false;
 304     }
 305
 306     pbyDAddress = (u8 *)(skb->data);
 307     pbyRxSts = pbyDAddress+4;
 308     pbyRxRate = pbyDAddress+5;
 309
 310     //real Frame Size = USBFrameSize -4WbkStatus - 4RxStatus - 8TSF - 4RSR - 4SQ3 - ?Padding
 311     //if SQ3 the range is 24~27, if no SQ3 the range is 20~23
 312     //real Frame size in PLCPLength field.
 313     pwPLCP_Length = (u16 *) (pbyDAddress + 6);
 314     //Fix hardware bug => PLCP_Length error
 315     if ( ((BytesToIndicate - (*pwPLCP_Length)) > 27) ||
 316          ((BytesToIndicate - (*pwPLCP_Length)) < 24) ||
 317          (BytesToIndicate < (*pwPLCP_Length)) ) {
 318
 319         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong PLCP Length %x\n", (int) *pwPLCP_Length);
 320         pStats->rx_frame_errors++;
 321         return false;
 322     }
 323     for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
 324         if ( *pbyRxRate == abyVaildRate[ii] ) {
 325             break;
 326         }
 327     }
 328     if ( ii==MAX_RATE ) {
 329         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong RxRate %x\n",(int) *pbyRxRate);
 330         return false;
 331     }
 332
 333     wPLCPwithPadding = ( (*pwPLCP_Length / 4) + ( (*pwPLCP_Length % 4) ? 1:0 ) ) *4;
 334
 335         pqwTSFTime = (u64 *)(pbyDAddress + 8 + wPLCPwithPadding);
 336   if(pDevice->byBBType == BB_TYPE_11G)  {
 337       pby3SQ = pbyDAddress + 8 + wPLCPwithPadding + 12;
 338       pbySQ = pby3SQ;
 339     }
 340   else {
 341    pbySQ = pbyDAddress + 8 + wPLCPwithPadding + 8;
 342    pby3SQ = pbySQ;
 343   }
 344     pbyNewRsr = pbyDAddress + 8 + wPLCPwithPadding + 9;
 345     pbyRSSI = pbyDAddress + 8 + wPLCPwithPadding + 10;
 346     pbyRsr = pbyDAddress + 8 + wPLCPwithPadding + 11;
 347
 348     FrameSize = *pwPLCP_Length;
 349
 350     pbyFrame = pbyDAddress + 8;
 351
 352     pMACHeader = (struct ieee80211_hdr *) pbyFrame;
 353
 354 //mike add: to judge if current AP is activated?
 355     if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
 356         (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
 357        if (pMgmt->sNodeDBTable[0].bActive) {
 358          if (ether_addr_equal(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
 359             if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
 360                   pMgmt->sNodeDBTable[0].uInActiveCount = 0;
 361            }
 362        }
 363     }
 364
 365     if (!is_multicast_ether_addr(pMACHeader->addr1)) {
 366         if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (struct ieee80211_hdr *) pbyFrame)) {
 367             return false;
 368         }
 369
 370         if (!ether_addr_equal(pDevice->abyCurrentNetAddr, pMACHeader->addr1)) {
 371                 return false;
 372         }
 373     }
 374
 375     // Use for TKIP MIC
 376     s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
 377
 378     if (ether_addr_equal((u8 *)pDevice->sRxEthHeader.h_source,
 379                          pDevice->abyCurrentNetAddr))
 380         return false;
 381
 382     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
 383         if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
 384             p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
 385             // get SA NodeIndex
 386             if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(p802_11Header->addr2), &iSANodeIndex)) {
 387                 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
 388                 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
 389             }
 390         }
 391     }
 392
 393     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 394         if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
 395             return false;
 396         }
 397     }
 398
 399     if (IS_FC_WEP(pbyFrame)) {
 400         bool     bRxDecryOK = false;
 401
 402         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
 403         bIsWEP = true;
 404         if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
 405             pKey = &STempKey;
 406             pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
 407             pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
 408             pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
 409             pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
 410             pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
 411             memcpy(pKey->abyKey,
 412                 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
 413                 pKey->uKeyLength
 414                 );
 415
 416             bRxDecryOK = s_bHostWepRxEncryption(pDevice,
 417                                                 pbyFrame,
 418                                                 FrameSize,
 419                                                 pbyRsr,
 420                                                 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
 421                                                 pKey,
 422                                                 pbyNewRsr,
 423                                                 &bExtIV,
 424                                                 &wRxTSC15_0,
 425                                                 &dwRxTSC47_16);
 426         } else {
 427             bRxDecryOK = s_bHandleRxEncryption(pDevice,
 428                                                 pbyFrame,
 429                                                 FrameSize,
 430                                                 pbyRsr,
 431                                                 pbyNewRsr,
 432                                                 &pKey,
 433                                                 &bExtIV,
 434                                                 &wRxTSC15_0,
 435                                                 &dwRxTSC47_16);
 436         }
 437
 438         if (bRxDecryOK) {
 439             if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
 440                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
 441                 if ( (pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
 442                     (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
 443                     (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
 444                     (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
 445                     (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
 446                 }
 447                 return false;
 448             }
 449         } else {
 450             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
 451             return false;
 452         }
 453         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
 454             FrameSize -= 8;         // Message Integrity Code
 455         else
 456             FrameSize -= 4;         // 4 is ICV
 457     }
 458
 459     //
 460     // RX OK
 461     //
 462     /* remove the FCS/CRC length */
 463     FrameSize -= ETH_FCS_LEN;
 464
 465     if ( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) && // unicast address
 466         (IS_FRAGMENT_PKT((pbyFrame)))
 467         ) {
 468         // defragment
 469         bDeFragRx = WCTLbHandleFragment(pDevice, (struct ieee80211_hdr *) (pbyFrame), FrameSize, bIsWEP, bExtIV);
 470         if (bDeFragRx) {
 471             // defrag complete
 472             // TODO skb, pbyFrame
 473             skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
 474             FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
 475             pbyFrame = skb->data + 8;
 476         }
 477         else {
 478             return false;
 479         }
 480     }
 481
 482     //
 483     // Management & Control frame Handle
 484     //
 485     if ((IS_TYPE_DATA((pbyFrame))) == false) {
 486         // Handle Control & Manage Frame
 487
 488         if (IS_TYPE_MGMT((pbyFrame))) {
 489             u8 * pbyData1;
 490             u8 * pbyData2;
 491
 492             pRxPacket = &(pRCB->sMngPacket);
 493             pRxPacket->p80211Header = (PUWLAN_80211HDR)(pbyFrame);
 494             pRxPacket->cbMPDULen = FrameSize;
 495             pRxPacket->uRSSI = *pbyRSSI;
 496             pRxPacket->bySQ = *pbySQ;
 497                 pRxPacket->qwLocalTSF = cpu_to_le64(*pqwTSFTime);
 498             if (bIsWEP) {
 499                 // strip IV
 500                 pbyData1 = WLAN_HDR_A3_DATA_PTR(pbyFrame);
 501                 pbyData2 = WLAN_HDR_A3_DATA_PTR(pbyFrame) + 4;
 502                 for (ii = 0; ii < (FrameSize - 4); ii++) {
 503                     *pbyData1 = *pbyData2;
 504                      pbyData1++;
 505                      pbyData2++;
 506                 }
 507             }
 508
 509             pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
 510
 511             if ( *pbyRxSts == 0 ) {
 512                 //Discard beacon packet which channel is 0
 513                 if ( (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_BEACON) ||
 514                      (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_PROBERESP) ) {
 515                         return false;
 516                 }
 517             }
 518             pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
 519
 520             // hostap Deamon handle 802.11 management
 521             if (pDevice->bEnableHostapd) {
 522                     skb->dev = pDevice->apdev;
 523                     //skb->data += 4;
 524                     //skb->tail += 4;
 525                     skb->data += 8;
 526                     skb->tail += 8;
 527                 skb_put(skb, FrameSize);
 528                 skb_reset_mac_header(skb);
 529                     skb->pkt_type = PACKET_OTHERHOST;
 530                 skb->protocol = htons(ETH_P_802_2);
 531                     memset(skb->cb, 0, sizeof(skb->cb));
 532                     netif_rx(skb);
 533                 return true;
 534                 }
 535
 536             //
 537             // Insert the RCB in the Recv Mng list
 538             //
 539             EnqueueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList, pRCBIndicate);
 540             pDevice->NumRecvMngList++;
 541             if ( bDeFragRx == false) {
 542                 pRCB->Ref++;
 543             }
 544             if (pDevice->bIsRxMngWorkItemQueued == false) {
 545                 pDevice->bIsRxMngWorkItemQueued = true;
 546                 schedule_work(&pDevice->rx_mng_work_item);
 547             }
 548
 549         }
 550         else {
 551             // Control Frame
 552         };
 553         return false;
 554     }
 555     else {
 556         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 557             //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
 558             if ( !(*pbyRsr & RSR_BSSIDOK)) {
 559                 if (bDeFragRx) {
 560                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 561                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 562                         pDevice->dev->name);
 563                     }
 564                 }
 565                 return false;
 566             }
 567         }
 568         else {
 569             // discard DATA packet while not associate || BSSID error
 570             if ((pDevice->bLinkPass == false) ||
 571                 !(*pbyRsr & RSR_BSSIDOK)) {
 572                 if (bDeFragRx) {
 573                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 574                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 575                         pDevice->dev->name);
 576                     }
 577                 }
 578                 return false;
 579             }
 580    //mike add:station mode check eapol-key challenge--->
 581           {
 582             u8  Protocol_Version;    //802.1x Authentication
 583             u8  Packet_Type;           //802.1x Authentication
 584             u8  Descriptor_type;
 585              u16 Key_info;
 586               if (bIsWEP)
 587                   cbIVOffset = 8;
 588               else
 589                   cbIVOffset = 0;
 590               wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
 591                           skb->data[cbIVOffset + 8 + 24 + 6 + 1];
 592               Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
 593               Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
 594              if (wEtherType == ETH_P_PAE) {         //Protocol Type in LLC-Header
 595                   if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
 596                      (Packet_Type==3)) {  //802.1x OR eapol-key challenge frame receive
 597                         bRxeapol_key = true;
 598                       Descriptor_type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2];
 599                       Key_info = (skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+1]<<8) |skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+2] ;
 600                       if(Descriptor_type==2) {    //RSN
 601                          //  printk("WPA2_Rx_eapol-key_info<-----:%x\n",Key_info);
 602                       }
 603                      else  if(Descriptor_type==254) {
 604                         //  printk("WPA_Rx_eapol-key_info<-----:%x\n",Key_info);
 605                      }
 606                   }
 607               }
 608           }
 609     //mike add:station mode check eapol-key challenge<---
 610         }
 611     }
 612
 613 // Data frame Handle
 614
 615     if (pDevice->bEnablePSMode) {
 616         if (IS_FC_MOREDATA((pbyFrame))) {
 617             if (*pbyRsr & RSR_ADDROK) {
 618                 //PSbSendPSPOLL((PSDevice)pDevice);
 619             }
 620         }
 621         else {
 622             if (pMgmt->bInTIMWake == true) {
 623                 pMgmt->bInTIMWake = false;
 624             }
 625         }
 626     }
 627
 628     // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
 629     if (pDevice->bDiversityEnable && (FrameSize>50) &&
 630        (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
 631        (pDevice->bLinkPass == true)) {
 632         BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
 633     }
 634
 635     // ++++++++ For BaseBand Algorithm +++++++++++++++
 636     pDevice->uCurrRSSI = *pbyRSSI;
 637     pDevice->byCurrSQ = *pbySQ;
 638
 639     // todo
 640 /*
 641     if ((*pbyRSSI != 0) &&
 642         (pMgmt->pCurrBSS!=NULL)) {
 643         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
 644         // Monitor if RSSI is too strong.
 645         pMgmt->pCurrBSS->byRSSIStatCnt++;
 646         pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
 647         pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
 648         for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
 649                 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
 650                         pMgmt->pCurrBSS->ldBmMAX =
 651                                 max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
 652                 }
 653         }
 654     }
 655 */
 656
 657     // -----------------------------------------------
 658
 659     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
 660         u8    abyMacHdr[24];
 661
 662         // Only 802.1x packet incoming allowed
 663         if (bIsWEP)
 664             cbIVOffset = 8;
 665         else
 666             cbIVOffset = 0;
 667         wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
 668                     skb->data[cbIVOffset + 8 + 24 + 6 + 1];
 669
 670             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
 671         if (wEtherType == ETH_P_PAE) {
 672             skb->dev = pDevice->apdev;
 673
 674             if (bIsWEP == true) {
 675                 // strip IV header(8)
 676                 memcpy(&abyMacHdr[0], (skb->data + 8), 24);
 677                 memcpy((skb->data + 8 + cbIVOffset), &abyMacHdr[0], 24);
 678             }
 679
 680             skb->data +=  (cbIVOffset + 8);
 681             skb->tail +=  (cbIVOffset + 8);
 682             skb_put(skb, FrameSize);
 683             skb_reset_mac_header(skb);
 684             skb->pkt_type = PACKET_OTHERHOST;
 685             skb->protocol = htons(ETH_P_802_2);
 686             memset(skb->cb, 0, sizeof(skb->cb));
 687             netif_rx(skb);
 688             return true;
 689
 690         }
 691         // check if 802.1x authorized
 692         if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
 693             return false;
 694     }
 695
 696     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 697         if (bIsWEP) {
 698             FrameSize -= 8;  //MIC
 699         }
 700     }
 701
 702     //--------------------------------------------------------------------------------
 703     // Soft MIC
 704     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
 705         if (bIsWEP) {
 706             u32 *          pdwMIC_L;
 707             u32 *          pdwMIC_R;
 708             u32           dwMIC_Priority;
 709             u32           dwMICKey0 = 0, dwMICKey1 = 0;
 710             u32           dwLocalMIC_L = 0;
 711             u32           dwLocalMIC_R = 0;
 712
 713             if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 714                 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
 715                 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
 716             }
 717             else {
 718                 if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
 719                     dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
 720                     dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
 721                 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
 722                     dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
 723                     dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
 724                 } else {
 725                     dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
 726                     dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
 727                 }
 728             }
 729
 730             MIC_vInit(dwMICKey0, dwMICKey1);
 731             MIC_vAppend((u8 *)&(pDevice->sRxEthHeader.h_dest[0]), 12);
 732             dwMIC_Priority = 0;
 733             MIC_vAppend((u8 *)&dwMIC_Priority, 4);
 734             // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
 735             MIC_vAppend((u8 *)(skb->data + 8 + WLAN_HDR_ADDR3_LEN + 8),
 736                         FrameSize - WLAN_HDR_ADDR3_LEN - 8);
 737             MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
 738             MIC_vUnInit();
 739
 740             pdwMIC_L = (u32 *)(skb->data + 8 + FrameSize);
 741             pdwMIC_R = (u32 *)(skb->data + 8 + FrameSize + 4);
 742
 743             if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
 744                 (pDevice->bRxMICFail == true)) {
 745                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
 746                 pDevice->bRxMICFail = false;
 747                 if (bDeFragRx) {
 748                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 749                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 750                             pDevice->dev->name);
 751                     }
 752                 }
 753                                 //send event to wpa_supplicant
 754                                 //if(pDevice->bWPASuppWextEnabled == true)
 755                                 {
 756                                         union iwreq_data wrqu;
 757                                         struct iw_michaelmicfailure ev;
 758                                         int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
 759                                         memset(&ev, 0, sizeof(ev));
 760                                         ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
 761                                         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 762                                                         (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
 763                                                                 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
 764                                                 ev.flags |= IW_MICFAILURE_PAIRWISE;
 765                                         } else {
 766                                                 ev.flags |= IW_MICFAILURE_GROUP;
 767                                         }
 768
 769                                         ev.src_addr.sa_family = ARPHRD_ETHER;
 770                                         memcpy(ev.src_addr.sa_data, pMACHeader->addr2, ETH_ALEN);
 771                                         memset(&wrqu, 0, sizeof(wrqu));
 772                                         wrqu.data.length = sizeof(ev);
 773                         PRINT_K("wireless_send_event--->IWEVMICHAELMICFAILURE\n");
 774                                         wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
 775
 776                                 }
 777
 778                 return false;
 779
 780             }
 781         }
 782     } //---end of SOFT MIC-----------------------------------------------------------------------
 783
 784     // ++++++++++ Reply Counter Check +++++++++++++
 785
 786     if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
 787                            (pKey->byCipherSuite == KEY_CTL_CCMP))) {
 788         if (bIsWEP) {
 789             u16        wLocalTSC15_0 = 0;
 790             u32       dwLocalTSC47_16 = 0;
 791             unsigned long long       RSC = 0;
 792             // endian issues
 793             RSC = *((unsigned long long *) &(pKey->KeyRSC));
 794             wLocalTSC15_0 = (u16) RSC;
 795             dwLocalTSC47_16 = (u32) (RSC>>16);
 796
 797             RSC = dwRxTSC47_16;
 798             RSC <<= 16;
 799             RSC += wRxTSC15_0;
 800                 memcpy(&(pKey->KeyRSC), &RSC,  sizeof(u64));
 801
 802                 if (pDevice->vnt_mgmt.eCurrMode == WMAC_MODE_ESS_STA &&
 803                         pDevice->vnt_mgmt.eCurrState == WMAC_STATE_ASSOC) {
 804                         /* check RSC */
 805                 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
 806                      (dwRxTSC47_16 <= dwLocalTSC47_16) &&
 807                      !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
 808                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
 809
 810                     if (bDeFragRx) {
 811                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 812                             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 813                                 pDevice->dev->name);
 814                         }
 815                     }
 816                     return false;
 817                 }
 818             }
 819         }
 820     } // ----- End of Reply Counter Check --------------------------
 821
 822     s_vProcessRxMACHeader(pDevice, (u8 *)(skb->data+8), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
 823     FrameSize -= cbHeaderOffset;
 824     cbHeaderOffset += 8;        // 8 is Rcv buffer header
 825
 826     // Null data, framesize = 12
 827     if (FrameSize < 12)
 828         return false;
 829
 830     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
 831         if (s_bAPModeRxData(pDevice,
 832                             skb,
 833                             FrameSize,
 834                             cbHeaderOffset,
 835                             iSANodeIndex,
 836                             iDANodeIndex
 837                             ) == false) {
 838
 839             if (bDeFragRx) {
 840                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 841                     DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 842                     pDevice->dev->name);
 843                 }
 844             }
 845             return false;
 846         }
 847
 848     }
 849
 850         skb->data += cbHeaderOffset;
 851         skb->tail += cbHeaderOffset;
 852     skb_put(skb, FrameSize);
 853     skb->protocol=eth_type_trans(skb, skb->dev);
 854     skb->ip_summed=CHECKSUM_NONE;
 855     pStats->rx_bytes +=skb->len;
 856     pStats->rx_packets++;
 857     netif_rx(skb);
 858     if (bDeFragRx) {
 859         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
 860             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
 861                 pDevice->dev->name);
 862         }
 863         return false;
 864     }
 865
 866     return true;
 867 }
 868
 869 static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
 870         s32 iSANodeIndex)
 871 {
 872         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 873         struct ieee80211_hdr *p802_11Header;
 874         CMD_STATUS Status;
 875
 876     if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
 877
 878         p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
 879         if (!IS_TYPE_MGMT(pbyFrame)) {
 880
 881             // Data & PS-Poll packet
 882             // check frame class
 883             if (iSANodeIndex > 0) {
 884                 // frame class 3 fliter & checking
 885                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
 886                     // send deauth notification
 887                     // reason = (6) class 2 received from nonauth sta
 888                     vMgrDeAuthenBeginSta(pDevice,
 889                                          pMgmt,
 890                                          (u8 *)(p802_11Header->addr2),
 891                                          (WLAN_MGMT_REASON_CLASS2_NONAUTH),
 892                                          &Status
 893                                          );
 894                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
 895                     return true;
 896                 }
 897                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
 898                     // send deassoc notification
 899                     // reason = (7) class 3 received from nonassoc sta
 900                     vMgrDisassocBeginSta(pDevice,
 901                                          pMgmt,
 902                                          (u8 *)(p802_11Header->addr2),
 903                                          (WLAN_MGMT_REASON_CLASS3_NONASSOC),
 904                                          &Status
 905                                          );
 906                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
 907                     return true;
 908                 }
 909
 910                 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
 911                     // delcare received ps-poll event
 912                     if (IS_CTL_PSPOLL(pbyFrame)) {
 913                         pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 914                         bScheduleCommand((void *) pDevice,
 915                                          WLAN_CMD_RX_PSPOLL,
 916                                          NULL);
 917                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
 918                     }
 919                     else {
 920                         // check Data PS state
 921                         // if PW bit off, send out all PS bufferring packets.
 922                         if (!IS_FC_POWERMGT(pbyFrame)) {
 923                             pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
 924                             pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 925                                 bScheduleCommand((void *) pDevice,
 926                                                  WLAN_CMD_RX_PSPOLL,
 927                                                  NULL);
 928                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
 929                         }
 930                     }
 931                 }
 932                 else {
 933                    if (IS_FC_POWERMGT(pbyFrame)) {
 934                        pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
 935                        // Once if STA in PS state, enable multicast bufferring
 936                        pMgmt->sNodeDBTable[0].bPSEnable = true;
 937                    }
 938                    else {
 939                       // clear all pending PS frame.
 940                       if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
 941                           pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
 942                           pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
 943                         bScheduleCommand((void *) pDevice,
 944                                          WLAN_CMD_RX_PSPOLL,
 945                                          NULL);
 946                          DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
 947
 948                       }
 949                    }
 950                 }
 951             }
 952             else {
 953                   vMgrDeAuthenBeginSta(pDevice,
 954                                        pMgmt,
 955                                        (u8 *)(p802_11Header->addr2),
 956                                        (WLAN_MGMT_REASON_CLASS2_NONAUTH),
 957                                        &Status
 958                                        );
 959                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
 960                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
 961                                 p802_11Header->addr3);
 962                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
 963                                 p802_11Header->addr2);
 964                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
 965                                 p802_11Header->addr1);
 966                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: frame_control= %x\n", p802_11Header->frame_control);
 967                     return true;
 968             }
 969         }
 970     }
 971     return false;
 972
 973 }
 974
 975 static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
 976         u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
 977         s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16)
 978 {
 979         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 980         u32 PayloadLen = FrameSize;
 981         u8 *pbyIV;
 982         u8 byKeyIdx;
 983         PSKeyItem pKey = NULL;
 984         u8 byDecMode = KEY_CTL_WEP;
 985
 986     *pwRxTSC15_0 = 0;
 987     *pdwRxTSC47_16 = 0;
 988
 989     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
 990     if ( WLAN_GET_FC_TODS(*(u16 *)pbyFrame) &&
 991          WLAN_GET_FC_FROMDS(*(u16 *)pbyFrame) ) {
 992          pbyIV += 6;             // 6 is 802.11 address4
 993          PayloadLen -= 6;
 994     }
 995     byKeyIdx = (*(pbyIV+3) & 0xc0);
 996     byKeyIdx >>= 6;
 997     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
 998
 999     if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1000         (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1001         (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1002         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1003         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1004         if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1005             (pMgmt->byCSSPK != KEY_CTL_NONE)) {
1006             // unicast pkt use pairwise key
1007             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1008             if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1009                 if (pMgmt->byCSSPK == KEY_CTL_TKIP)
1010                     byDecMode = KEY_CTL_TKIP;
1011                 else if (pMgmt->byCSSPK == KEY_CTL_CCMP)
1012                     byDecMode = KEY_CTL_CCMP;
1013             }
1014             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1015         } else {
1016             // use group key
1017             KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1018             if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1019                 byDecMode = KEY_CTL_TKIP;
1020             else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1021                 byDecMode = KEY_CTL_CCMP;
1022             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1023         }
1024     }
1025     // our WEP only support Default Key
1026     if (pKey == NULL) {
1027         // use default group key
1028         KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1029         if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1030             byDecMode = KEY_CTL_TKIP;
1031         else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1032             byDecMode = KEY_CTL_CCMP;
1033     }
1034     *pKeyOut = pKey;
1035
1036     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
1037
1038     if (pKey == NULL) {
1039         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1040         return false;
1041     }
1042     if (byDecMode != pKey->byCipherSuite) {
1043         *pKeyOut = NULL;
1044         return false;
1045     }
1046     if (byDecMode == KEY_CTL_WEP) {
1047         // handle WEP
1048         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1049                 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1050             // Software WEP
1051             // 1. 3253A
1052             // 2. WEP 256
1053
1054             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1055             memcpy(pDevice->abyPRNG, pbyIV, 3);
1056             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1057             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1058             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1059
1060             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1061                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1062             }
1063         }
1064     } else if ((byDecMode == KEY_CTL_TKIP) ||
1065                (byDecMode == KEY_CTL_CCMP)) {
1066         // TKIP/AES
1067
1068         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1069         *pdwRxTSC47_16 = cpu_to_le32(*(u32 *)(pbyIV + 4));
1070         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
1071         if (byDecMode == KEY_CTL_TKIP) {
1072             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1073         } else {
1074             *pwRxTSC15_0 = cpu_to_le16(*(u16 *)pbyIV);
1075         }
1076         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1077
1078         if ((byDecMode == KEY_CTL_TKIP) &&
1079             (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1080             // Software TKIP
1081             // 1. 3253 A
1082             struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *) (pbyFrame);
1083             TKIPvMixKey(pKey->abyKey, pMACHeader->addr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1084             rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1085             rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1086             if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1087                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1088                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1089             } else {
1090                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1091                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1092             }
1093         }
1094     }// end of TKIP/AES
1095
1096     if ((*(pbyIV+3) & 0x20) != 0)
1097         *pbExtIV = true;
1098     return true;
1099 }
1100
1101 static int s_bHostWepRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
1102         u32 FrameSize, u8 *pbyRsr, int bOnFly, PSKeyItem pKey, u8 *pbyNewRsr,
1103         s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16)
1104 {
1105         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1106         struct ieee80211_hdr *pMACHeader;
1107         u32 PayloadLen = FrameSize;
1108         u8 *pbyIV;
1109         u8 byKeyIdx;
1110         u8 byDecMode = KEY_CTL_WEP;
1111
1112         *pwRxTSC15_0 = 0;
1113         *pdwRxTSC47_16 = 0;
1114
1115     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1116     if ( WLAN_GET_FC_TODS(*(u16 *)pbyFrame) &&
1117          WLAN_GET_FC_FROMDS(*(u16 *)pbyFrame) ) {
1118          pbyIV += 6;             // 6 is 802.11 address4
1119          PayloadLen -= 6;
1120     }
1121     byKeyIdx = (*(pbyIV+3) & 0xc0);
1122     byKeyIdx >>= 6;
1123     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1124
1125     if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1126         byDecMode = KEY_CTL_TKIP;
1127     else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1128         byDecMode = KEY_CTL_CCMP;
1129
1130     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
1131
1132     if (byDecMode != pKey->byCipherSuite) {
1133         return false;
1134     }
1135
1136     if (byDecMode == KEY_CTL_WEP) {
1137         // handle WEP
1138         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP\n");
1139         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1140                 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1141             (bOnFly == false)) {
1142             // Software WEP
1143             // 1. 3253A
1144             // 2. WEP 256
1145             // 3. NotOnFly
1146
1147             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1148             memcpy(pDevice->abyPRNG, pbyIV, 3);
1149             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1150             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1151             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1152
1153             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1154                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1155             }
1156         }
1157     } else if ((byDecMode == KEY_CTL_TKIP) ||
1158                (byDecMode == KEY_CTL_CCMP)) {
1159         // TKIP/AES
1160
1161         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1162         *pdwRxTSC47_16 = cpu_to_le32(*(u32 *)(pbyIV + 4));
1163         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
1164
1165         if (byDecMode == KEY_CTL_TKIP) {
1166             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1167         } else {
1168             *pwRxTSC15_0 = cpu_to_le16(*(u16 *)pbyIV);
1169         }
1170         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1171
1172         if (byDecMode == KEY_CTL_TKIP) {
1173
1174             if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1175                 // Software TKIP
1176                 // 1. 3253 A
1177                 // 2. NotOnFly
1178                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1179                 pMACHeader = (struct ieee80211_hdr *) (pbyFrame);
1180                 TKIPvMixKey(pKey->abyKey, pMACHeader->addr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1181                 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1182                 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1183                 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1184                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1185                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1186                 } else {
1187                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1188                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1189                 }
1190             }
1191         }
1192
1193         if (byDecMode == KEY_CTL_CCMP) {
1194             if (bOnFly == false) {
1195                 // Software CCMP
1196                 // NotOnFly
1197                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1198                 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1199                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1200                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1201                 } else {
1202                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1203                 }
1204             }
1205         }
1206
1207     }// end of TKIP/AES
1208
1209     if ((*(pbyIV+3) & 0x20) != 0)
1210         *pbExtIV = true;
1211     return true;
1212 }
1213
1214 static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
1215         u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex)
1216 {
1217         struct sk_buff *skbcpy;
1218         struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1219         int  bRelayAndForward = false;
1220         int bRelayOnly = false;
1221         u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1222         u16 wAID;
1223
1224     if (FrameSize > CB_MAX_BUF_SIZE)
1225         return false;
1226     // check DA
1227     if (is_multicast_ether_addr((u8 *)(skb->data+cbHeaderOffset))) {
1228        if (pMgmt->sNodeDBTable[0].bPSEnable) {
1229
1230            skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1231
1232         // if any node in PS mode, buffer packet until DTIM.
1233            if (skbcpy == NULL) {
1234                DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1235            }
1236            else {
1237                skbcpy->dev = pDevice->dev;
1238                skbcpy->len = FrameSize;
1239                memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1240                skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1241                pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1242                // set tx map
1243                pMgmt->abyPSTxMap[0] |= byMask[0];
1244            }
1245        }
1246        else {
1247            bRelayAndForward = true;
1248        }
1249     }
1250     else {
1251         // check if relay
1252         if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1253             if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1254                 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1255                     // queue this skb until next PS tx, and then release.
1256
1257                         skb->data += cbHeaderOffset;
1258                         skb->tail += cbHeaderOffset;
1259                     skb_put(skb, FrameSize);
1260                     skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1261
1262                     pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1263                     wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1264                     pMgmt->abyPSTxMap[wAID >> 3] |=  byMask[wAID & 7];
1265                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1266                                iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1267                     return true;
1268                 }
1269                 else {
1270                     bRelayOnly = true;
1271                 }
1272             }
1273         }
1274     }
1275
1276     if (bRelayOnly || bRelayAndForward) {
1277         // relay this packet right now
1278         if (bRelayAndForward)
1279             iDANodeIndex = 0;
1280
1281         if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1282                 bRelayPacketSend(pDevice, (u8 *) (skb->data + cbHeaderOffset),
1283                                  FrameSize, (unsigned int) iDANodeIndex);
1284         }
1285
1286         if (bRelayOnly)
1287             return false;
1288     }
1289     // none associate, don't forward
1290     if (pDevice->uAssocCount == 0)
1291         return false;
1292
1293     return true;
1294 }
1295
1296 void RXvWorkItem(struct work_struct *work)
1297 {
1298         struct vnt_private *pDevice =
1299                 container_of(work, struct vnt_private, read_work_item);
1300         int ntStatus;
1301         struct vnt_rcb *pRCB = NULL;
1302
1303         if (pDevice->Flags & fMP_DISCONNECTED)
1304                 return;
1305
1306     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Polling Thread\n");
1307     spin_lock_irq(&pDevice->lock);
1308
1309     while ((pDevice->Flags & fMP_POST_READS) &&
1310             MP_IS_READY(pDevice) &&
1311             (pDevice->NumRecvFreeList != 0) ) {
1312         pRCB = pDevice->FirstRecvFreeList;
1313         pDevice->NumRecvFreeList--;
1314         DequeueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList);
1315         ntStatus = PIPEnsBulkInUsbRead(pDevice, pRCB);
1316     }
1317     pDevice->bIsRxWorkItemQueued = false;
1318     spin_unlock_irq(&pDevice->lock);
1319
1320 }
1321
1322 void RXvFreeRCB(struct vnt_rcb *pRCB, int bReAllocSkb)
1323 {
1324         struct vnt_private *pDevice = pRCB->pDevice;
1325
1326     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->RXvFreeRCB\n");
1327
1328         if (bReAllocSkb == false) {
1329                 kfree_skb(pRCB->skb);
1330                 bReAllocSkb = true;
1331         }
1332
1333     if (bReAllocSkb == true) {
1334         pRCB->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1335         // todo error handling
1336         if (pRCB->skb == NULL) {
1337             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR" Failed to re-alloc rx skb\n");
1338         }else {
1339             pRCB->skb->dev = pDevice->dev;
1340         }
1341     }
1342     //
1343     // Insert the RCB back in the Recv free list
1344     //
1345     EnqueueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList, pRCB);
1346     pDevice->NumRecvFreeList++;
1347
1348     if ((pDevice->Flags & fMP_POST_READS) && MP_IS_READY(pDevice) &&
1349         (pDevice->bIsRxWorkItemQueued == false) ) {
1350
1351         pDevice->bIsRxWorkItemQueued = true;
1352         schedule_work(&pDevice->read_work_item);
1353     }
1354     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
1355 }
1356
1357 void RXvMngWorkItem(struct work_struct *work)
1358 {
1359         struct vnt_private *pDevice =
1360                 container_of(work, struct vnt_private, rx_mng_work_item);
1361         struct vnt_rcb *pRCB = NULL;
1362         struct vnt_rx_mgmt *pRxPacket;
1363         int bReAllocSkb = false;
1364
1365         if (pDevice->Flags & fMP_DISCONNECTED)
1366                 return;
1367
1368     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Mng Thread\n");
1369
1370     spin_lock_irq(&pDevice->lock);
1371     while (pDevice->NumRecvMngList!=0)
1372     {
1373         pRCB = pDevice->FirstRecvMngList;
1374         pDevice->NumRecvMngList--;
1375         DequeueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList);
1376         if(!pRCB){
1377             break;
1378         }
1379         pRxPacket = &(pRCB->sMngPacket);
1380         vMgrRxManagePacket(pDevice, &pDevice->vnt_mgmt, pRxPacket);
1381         pRCB->Ref--;
1382         if(pRCB->Ref == 0) {
1383             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeMng %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
1384             RXvFreeRCB(pRCB, bReAllocSkb);
1385         } else {
1386             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rx Mng Only we have the right to free RCB\n");
1387         }
1388     }
1389
1390         pDevice->bIsRxMngWorkItemQueued = false;
1391         spin_unlock_irq(&pDevice->lock);
1392
1393 }
1394