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