Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[pandora-kernel.git] / 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 Definitions -------------------------*/
60
61 /*---------------------  Static Classes  ----------------------------*/
62
63 /*---------------------  Static Variables  --------------------------*/
64 //static int          msglevel                =MSG_LEVEL_DEBUG;
65 static int          msglevel                =MSG_LEVEL_INFO;
66
67 const BYTE acbyRxRate[MAX_RATE] =
68 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
69
70
71 /*---------------------  Static Functions  --------------------------*/
72
73 /*---------------------  Static Definitions -------------------------*/
74
75 /*---------------------  Static Functions  --------------------------*/
76
77 static BYTE s_byGetRateIdx(BYTE byRate);
78
79 static
80 void
81 s_vGetDASA(
82       PBYTE pbyRxBufferAddr,
83      unsigned int *pcbHeaderSize,
84      PSEthernetHeader psEthHeader
85     );
86
87 static
88 void
89 s_vProcessRxMACHeader (
90       PSDevice pDevice,
91       PBYTE pbyRxBufferAddr,
92       unsigned int cbPacketSize,
93       BOOL bIsWEP,
94       BOOL bExtIV,
95      unsigned int *pcbHeadSize
96     );
97
98 static BOOL s_bAPModeRxCtl(
99      PSDevice pDevice,
100      PBYTE    pbyFrame,
101      signed int      iSANodeIndex
102     );
103
104
105
106 static BOOL s_bAPModeRxData (
107      PSDevice pDevice,
108      struct sk_buff *skb,
109      unsigned int     FrameSize,
110      unsigned int     cbHeaderOffset,
111      signed int      iSANodeIndex,
112      signed int      iDANodeIndex
113     );
114
115
116 static BOOL s_bHandleRxEncryption(
117      PSDevice     pDevice,
118      PBYTE        pbyFrame,
119      unsigned int         FrameSize,
120      PBYTE        pbyRsr,
121      PBYTE       pbyNewRsr,
122      PSKeyItem   * pKeyOut,
123     int *       pbExtIV,
124      PWORD       pwRxTSC15_0,
125      PDWORD      pdwRxTSC47_16
126     );
127
128 static BOOL s_bHostWepRxEncryption(
129
130      PSDevice     pDevice,
131      PBYTE        pbyFrame,
132      unsigned int         FrameSize,
133      PBYTE        pbyRsr,
134      BOOL         bOnFly,
135      PSKeyItem    pKey,
136      PBYTE       pbyNewRsr,
137     int *       pbExtIV,
138      PWORD       pwRxTSC15_0,
139      PDWORD      pdwRxTSC47_16
140
141     );
142
143 /*---------------------  Export Variables  --------------------------*/
144
145 /*+
146  *
147  * Description:
148  *    Translate Rcv 802.11 header to 802.3 header with Rx buffer
149  *
150  * Parameters:
151  *  In:
152  *      pDevice
153  *      dwRxBufferAddr  - Address of Rcv Buffer
154  *      cbPacketSize    - Rcv Packet size
155  *      bIsWEP          - If Rcv with WEP
156  *  Out:
157  *      pcbHeaderSize   - 802.11 header size
158  *
159  * Return Value: None
160  *
161 -*/
162 static
163 void
164 s_vProcessRxMACHeader (
165       PSDevice pDevice,
166       PBYTE pbyRxBufferAddr,
167       unsigned int cbPacketSize,
168       BOOL bIsWEP,
169       BOOL bExtIV,
170      unsigned int *pcbHeadSize
171     )
172 {
173     PBYTE           pbyRxBuffer;
174     unsigned int            cbHeaderSize = 0;
175     PWORD           pwType;
176     PS802_11Header  pMACHeader;
177     int             ii;
178
179
180     pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
181
182     s_vGetDASA((PBYTE)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
183
184     if (bIsWEP) {
185         if (bExtIV) {
186             // strip IV&ExtIV , add 8 byte
187             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
188         } else {
189             // strip IV , add 4 byte
190             cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
191         }
192     }
193     else {
194         cbHeaderSize += WLAN_HDR_ADDR3_LEN;
195     };
196
197     pbyRxBuffer = (PBYTE) (pbyRxBufferAddr + cbHeaderSize);
198     if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
199         cbHeaderSize += 6;
200     } else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
201         cbHeaderSize += 6;
202         pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
203         if ((*pwType == cpu_to_le16(ETH_P_IPX)) ||
204             (*pwType == cpu_to_le16(0xF380))) {
205                 cbHeaderSize -= 8;
206             pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
207             if (bIsWEP) {
208                 if (bExtIV) {
209                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
210                 } else {
211                     *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
212                 }
213             }
214             else {
215                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
216             }
217         }
218     }
219     else {
220         cbHeaderSize -= 2;
221         pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
222         if (bIsWEP) {
223             if (bExtIV) {
224                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8);    // 8 is IV&ExtIV
225             } else {
226                 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4);    // 4 is IV
227             }
228         }
229         else {
230             *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
231         }
232     }
233
234     cbHeaderSize -= (ETH_ALEN * 2);
235     pbyRxBuffer = (PBYTE) (pbyRxBufferAddr + cbHeaderSize);
236     for (ii = 0; ii < ETH_ALEN; ii++)
237         *pbyRxBuffer++ = pDevice->sRxEthHeader.abyDstAddr[ii];
238     for (ii = 0; ii < ETH_ALEN; ii++)
239         *pbyRxBuffer++ = pDevice->sRxEthHeader.abySrcAddr[ii];
240
241     *pcbHeadSize = cbHeaderSize;
242 }
243
244
245
246
247 static BYTE s_byGetRateIdx(BYTE byRate)
248 {
249     BYTE    byRateIdx;
250
251     for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
252         if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
253             return byRateIdx;
254     }
255     return 0;
256 }
257
258
259 static
260 void
261 s_vGetDASA (
262       PBYTE pbyRxBufferAddr,
263      unsigned int *pcbHeaderSize,
264      PSEthernetHeader psEthHeader
265     )
266 {
267         unsigned int            cbHeaderSize = 0;
268         PS802_11Header  pMACHeader;
269         int             ii;
270
271         pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
272
273         if ((pMACHeader->wFrameCtl & FC_TODS) == 0) {
274                 if (pMACHeader->wFrameCtl & FC_FROMDS) {
275                         for (ii = 0; ii < ETH_ALEN; ii++) {
276                                 psEthHeader->abyDstAddr[ii] =
277                                         pMACHeader->abyAddr1[ii];
278                                 psEthHeader->abySrcAddr[ii] =
279                                         pMACHeader->abyAddr3[ii];
280                         }
281                 } else {
282                         /* IBSS mode */
283                         for (ii = 0; ii < ETH_ALEN; ii++) {
284                                 psEthHeader->abyDstAddr[ii] =
285                                         pMACHeader->abyAddr1[ii];
286                                 psEthHeader->abySrcAddr[ii] =
287                                         pMACHeader->abyAddr2[ii];
288                         }
289                 }
290         } else {
291                 /* Is AP mode.. */
292                 if (pMACHeader->wFrameCtl & FC_FROMDS) {
293                         for (ii = 0; ii < ETH_ALEN; ii++) {
294                                 psEthHeader->abyDstAddr[ii] =
295                                         pMACHeader->abyAddr3[ii];
296                                 psEthHeader->abySrcAddr[ii] =
297                                         pMACHeader->abyAddr4[ii];
298                                 cbHeaderSize += 6;
299                         }
300                 } else {
301                         for (ii = 0; ii < ETH_ALEN; ii++) {
302                                 psEthHeader->abyDstAddr[ii] =
303                                         pMACHeader->abyAddr3[ii];
304                                 psEthHeader->abySrcAddr[ii] =
305                                         pMACHeader->abyAddr2[ii];
306                         }
307                 }
308         };
309     *pcbHeaderSize = cbHeaderSize;
310 }
311
312
313
314
315 BOOL
316 RXbBulkInProcessData (
317      PSDevice         pDevice,
318      PRCB             pRCB,
319      unsigned long            BytesToIndicate
320     )
321 {
322
323     struct net_device_stats* pStats=&pDevice->stats;
324     struct sk_buff* skb;
325     PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
326     PSRxMgmtPacket  pRxPacket = &(pMgmt->sRxPacket);
327     PS802_11Header  p802_11Header;
328     PBYTE           pbyRsr;
329     PBYTE           pbyNewRsr;
330     PBYTE           pbyRSSI;
331     PQWORD          pqwTSFTime;
332     PBYTE           pbyFrame;
333     BOOL            bDeFragRx = FALSE;
334     unsigned int            cbHeaderOffset;
335     unsigned int            FrameSize;
336     WORD            wEtherType = 0;
337     signed int             iSANodeIndex = -1;
338     signed int             iDANodeIndex = -1;
339     unsigned int            ii;
340     unsigned int            cbIVOffset;
341     PBYTE           pbyRxSts;
342     PBYTE           pbyRxRate;
343     PBYTE           pbySQ;
344     PBYTE           pby3SQ;
345     unsigned int            cbHeaderSize;
346     PSKeyItem       pKey = NULL;
347     WORD            wRxTSC15_0 = 0;
348     DWORD           dwRxTSC47_16 = 0;
349     SKeyItem        STempKey;
350     // 802.11h RPI
351     /* signed long ldBm = 0; */
352     BOOL            bIsWEP = FALSE;
353     BOOL            bExtIV = FALSE;
354     DWORD           dwWbkStatus;
355     PRCB            pRCBIndicate = pRCB;
356     PBYTE           pbyDAddress;
357     PWORD           pwPLCP_Length;
358     BYTE            abyVaildRate[MAX_RATE] = {2,4,11,22,12,18,24,36,48,72,96,108};
359     WORD            wPLCPwithPadding;
360     PS802_11Header  pMACHeader;
361     BOOL            bRxeapol_key = FALSE;
362
363
364
365     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- RXbBulkInProcessData---\n");
366
367     skb = pRCB->skb;
368
369     //[31:16]RcvByteCount ( not include 4-byte Status )
370     dwWbkStatus =  *( (PDWORD)(skb->data) );
371     FrameSize = (unsigned int)(dwWbkStatus >> 16);
372     FrameSize += 4;
373
374     if (BytesToIndicate != FrameSize) {
375         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 1 \n");
376         return FALSE;
377     }
378
379     if ((BytesToIndicate > 2372) || (BytesToIndicate <= 40)) {
380         // Frame Size error drop this packet.
381         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
382         return FALSE;
383     }
384
385     pbyDAddress = (PBYTE)(skb->data);
386     pbyRxSts = pbyDAddress+4;
387     pbyRxRate = pbyDAddress+5;
388
389     //real Frame Size = USBFrameSize -4WbkStatus - 4RxStatus - 8TSF - 4RSR - 4SQ3 - ?Padding
390     //if SQ3 the range is 24~27, if no SQ3 the range is 20~23
391     //real Frame size in PLCPLength field.
392     pwPLCP_Length = (PWORD) (pbyDAddress + 6);
393     //Fix hardware bug => PLCP_Length error
394     if ( ((BytesToIndicate - (*pwPLCP_Length)) > 27) ||
395          ((BytesToIndicate - (*pwPLCP_Length)) < 24) ||
396          (BytesToIndicate < (*pwPLCP_Length)) ) {
397
398         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong PLCP Length %x\n", (int) *pwPLCP_Length);
399         ASSERT(0);
400         return FALSE;
401     }
402     for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
403         if ( *pbyRxRate == abyVaildRate[ii] ) {
404             break;
405         }
406     }
407     if ( ii==MAX_RATE ) {
408         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong RxRate %x\n",(int) *pbyRxRate);
409         return FALSE;
410     }
411
412     wPLCPwithPadding = ( (*pwPLCP_Length / 4) + ( (*pwPLCP_Length % 4) ? 1:0 ) ) *4;
413
414     pqwTSFTime = (PQWORD) (pbyDAddress + 8 + wPLCPwithPadding);
415   if(pDevice->byBBType == BB_TYPE_11G)  {
416       pby3SQ = pbyDAddress + 8 + wPLCPwithPadding + 12;
417       pbySQ = pby3SQ;
418     }
419   else {
420    pbySQ = pbyDAddress + 8 + wPLCPwithPadding + 8;
421    pby3SQ = pbySQ;
422   }
423     pbyNewRsr = pbyDAddress + 8 + wPLCPwithPadding + 9;
424     pbyRSSI = pbyDAddress + 8 + wPLCPwithPadding + 10;
425     pbyRsr = pbyDAddress + 8 + wPLCPwithPadding + 11;
426
427     FrameSize = *pwPLCP_Length;
428
429     pbyFrame = pbyDAddress + 8;
430     // update receive statistic counter
431
432     STAvUpdateRDStatCounter(&pDevice->scStatistic,
433                             *pbyRsr,
434                             *pbyNewRsr,
435                             *pbyRxSts,
436                             *pbyRxRate,
437                             pbyFrame,
438                             FrameSize
439                             );
440
441
442     pMACHeader = (PS802_11Header) pbyFrame;
443
444 //mike add: to judge if current AP is activated?
445     if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
446         (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
447        if (pMgmt->sNodeDBTable[0].bActive) {
448          if (!compare_ether_addr(pMgmt->abyCurrBSSID, pMACHeader->abyAddr2)) {
449             if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
450                   pMgmt->sNodeDBTable[0].uInActiveCount = 0;
451            }
452        }
453     }
454
455     if (!is_multicast_ether_addr(pMACHeader->abyAddr1) && !is_broadcast_ether_addr(pMACHeader->abyAddr1)) {
456         if ( WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header) pbyFrame) ) {
457             pDevice->s802_11Counter.FrameDuplicateCount++;
458             return FALSE;
459         }
460
461         if (compare_ether_addr(pDevice->abyCurrentNetAddr,
462                                pMACHeader->abyAddr1)) {
463                 return FALSE;
464         }
465     }
466
467
468     // Use for TKIP MIC
469     s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
470
471     if (!compare_ether_addr((PBYTE)&(pDevice->sRxEthHeader.abySrcAddr[0]),
472                             pDevice->abyCurrentNetAddr))
473         return FALSE;
474
475     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
476         if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
477             p802_11Header = (PS802_11Header) (pbyFrame);
478             // get SA NodeIndex
479             if (BSSbIsSTAInNodeDB(pDevice, (PBYTE)(p802_11Header->abyAddr2), &iSANodeIndex)) {
480                 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
481                 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
482             }
483         }
484     }
485
486     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
487         if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == TRUE) {
488             return FALSE;
489         }
490     }
491
492
493     if (IS_FC_WEP(pbyFrame)) {
494         BOOL     bRxDecryOK = FALSE;
495
496         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
497         bIsWEP = TRUE;
498         if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
499             pKey = &STempKey;
500             pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
501             pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
502             pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
503             pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
504             pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
505             memcpy(pKey->abyKey,
506                 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
507                 pKey->uKeyLength
508                 );
509
510             bRxDecryOK = s_bHostWepRxEncryption(pDevice,
511                                                 pbyFrame,
512                                                 FrameSize,
513                                                 pbyRsr,
514                                                 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
515                                                 pKey,
516                                                 pbyNewRsr,
517                                                 &bExtIV,
518                                                 &wRxTSC15_0,
519                                                 &dwRxTSC47_16);
520         } else {
521             bRxDecryOK = s_bHandleRxEncryption(pDevice,
522                                                 pbyFrame,
523                                                 FrameSize,
524                                                 pbyRsr,
525                                                 pbyNewRsr,
526                                                 &pKey,
527                                                 &bExtIV,
528                                                 &wRxTSC15_0,
529                                                 &dwRxTSC47_16);
530         }
531
532         if (bRxDecryOK) {
533             if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
534                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
535                 if ( (pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
536                     (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
537                     (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
538                     (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
539                     (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
540
541                     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
542                         pDevice->s802_11Counter.TKIPICVErrors++;
543                     } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
544                         pDevice->s802_11Counter.CCMPDecryptErrors++;
545                     } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
546 //                      pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
547                     }
548                 }
549                 return FALSE;
550             }
551         } else {
552             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
553             return FALSE;
554         }
555         if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
556             FrameSize -= 8;         // Message Integrity Code
557         else
558             FrameSize -= 4;         // 4 is ICV
559     }
560
561
562     //
563     // RX OK
564     //
565     /* remove the FCS/CRC length */
566     FrameSize -= ETH_FCS_LEN;
567
568     if ( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) && // unicast address
569         (IS_FRAGMENT_PKT((pbyFrame)))
570         ) {
571         // defragment
572         bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header) (pbyFrame), FrameSize, bIsWEP, bExtIV);
573         pDevice->s802_11Counter.ReceivedFragmentCount++;
574         if (bDeFragRx) {
575             // defrag complete
576             // TODO skb, pbyFrame
577             skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
578             FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
579             pbyFrame = skb->data + 8;
580         }
581         else {
582             return FALSE;
583         }
584     }
585
586     //
587     // Management & Control frame Handle
588     //
589     if ((IS_TYPE_DATA((pbyFrame))) == FALSE) {
590         // Handle Control & Manage Frame
591
592         if (IS_TYPE_MGMT((pbyFrame))) {
593             PBYTE pbyData1;
594             PBYTE pbyData2;
595
596             pRxPacket = &(pRCB->sMngPacket);
597             pRxPacket->p80211Header = (PUWLAN_80211HDR)(pbyFrame);
598             pRxPacket->cbMPDULen = FrameSize;
599             pRxPacket->uRSSI = *pbyRSSI;
600             pRxPacket->bySQ = *pbySQ;
601             HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
602             LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
603             if (bIsWEP) {
604                 // strip IV
605                 pbyData1 = WLAN_HDR_A3_DATA_PTR(pbyFrame);
606                 pbyData2 = WLAN_HDR_A3_DATA_PTR(pbyFrame) + 4;
607                 for (ii = 0; ii < (FrameSize - 4); ii++) {
608                     *pbyData1 = *pbyData2;
609                      pbyData1++;
610                      pbyData2++;
611                 }
612             }
613
614             pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
615
616             if ( *pbyRxSts == 0 ) {
617                 //Discard beacon packet which channel is 0
618                 if ( (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_BEACON) ||
619                      (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_PROBERESP) ) {
620                     return TRUE;
621                 }
622             }
623             pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
624
625             // hostap Deamon handle 802.11 management
626             if (pDevice->bEnableHostapd) {
627                     skb->dev = pDevice->apdev;
628                     //skb->data += 4;
629                     //skb->tail += 4;
630                     skb->data += 8;
631                     skb->tail += 8;
632                 skb_put(skb, FrameSize);
633                 skb_reset_mac_header(skb);
634                     skb->pkt_type = PACKET_OTHERHOST;
635                 skb->protocol = htons(ETH_P_802_2);
636                     memset(skb->cb, 0, sizeof(skb->cb));
637                     netif_rx(skb);
638                 return TRUE;
639                 }
640
641             //
642             // Insert the RCB in the Recv Mng list
643             //
644             EnqueueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList, pRCBIndicate);
645             pDevice->NumRecvMngList++;
646             if ( bDeFragRx == FALSE) {
647                 pRCB->Ref++;
648             }
649             if (pDevice->bIsRxMngWorkItemQueued == FALSE) {
650                 pDevice->bIsRxMngWorkItemQueued = TRUE;
651                 tasklet_schedule(&pDevice->RxMngWorkItem);
652             }
653
654         }
655         else {
656             // Control Frame
657         };
658         return FALSE;
659     }
660     else {
661         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
662             //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
663             if ( !(*pbyRsr & RSR_BSSIDOK)) {
664                 if (bDeFragRx) {
665                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
666                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
667                         pDevice->dev->name);
668                     }
669                 }
670                 return FALSE;
671             }
672         }
673         else {
674             // discard DATA packet while not associate || BSSID error
675             if ((pDevice->bLinkPass == FALSE) ||
676                 !(*pbyRsr & RSR_BSSIDOK)) {
677                 if (bDeFragRx) {
678                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
679                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
680                         pDevice->dev->name);
681                     }
682                 }
683                 return FALSE;
684             }
685    //mike add:station mode check eapol-key challenge--->
686           {
687             BYTE  Protocol_Version;    //802.1x Authentication
688             BYTE  Packet_Type;           //802.1x Authentication
689             BYTE  Descriptor_type;
690              WORD Key_info;
691               if (bIsWEP)
692                   cbIVOffset = 8;
693               else
694                   cbIVOffset = 0;
695               wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
696                           skb->data[cbIVOffset + 8 + 24 + 6 + 1];
697               Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
698               Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
699              if (wEtherType == ETH_P_PAE) {         //Protocol Type in LLC-Header
700                   if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
701                      (Packet_Type==3)) {  //802.1x OR eapol-key challenge frame receive
702                         bRxeapol_key = TRUE;
703                       Descriptor_type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2];
704                       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] ;
705                       if(Descriptor_type==2) {    //RSN
706                          //  printk("WPA2_Rx_eapol-key_info<-----:%x\n",Key_info);
707                       }
708                      else  if(Descriptor_type==254) {
709                         //  printk("WPA_Rx_eapol-key_info<-----:%x\n",Key_info);
710                      }
711                   }
712               }
713           }
714     //mike add:station mode check eapol-key challenge<---
715         }
716     }
717
718
719 // Data frame Handle
720
721
722     if (pDevice->bEnablePSMode) {
723         if (IS_FC_MOREDATA((pbyFrame))) {
724             if (*pbyRsr & RSR_ADDROK) {
725                 //PSbSendPSPOLL((PSDevice)pDevice);
726             }
727         }
728         else {
729             if (pMgmt->bInTIMWake == TRUE) {
730                 pMgmt->bInTIMWake = FALSE;
731             }
732         }
733     };
734
735     // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
736     if (pDevice->bDiversityEnable && (FrameSize>50) &&
737        (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
738        (pDevice->bLinkPass == TRUE)) {
739         BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
740     }
741
742     // ++++++++ For BaseBand Algorithm +++++++++++++++
743     pDevice->uCurrRSSI = *pbyRSSI;
744     pDevice->byCurrSQ = *pbySQ;
745
746     // todo
747 /*
748     if ((*pbyRSSI != 0) &&
749         (pMgmt->pCurrBSS!=NULL)) {
750         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
751         // Moniter if RSSI is too strong.
752         pMgmt->pCurrBSS->byRSSIStatCnt++;
753         pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
754         pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
755         for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
756                 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
757                         pMgmt->pCurrBSS->ldBmMAX =
758                                 max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
759                 }
760         }
761     }
762 */
763
764
765     // -----------------------------------------------
766
767     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == TRUE)){
768         BYTE    abyMacHdr[24];
769
770         // Only 802.1x packet incoming allowed
771         if (bIsWEP)
772             cbIVOffset = 8;
773         else
774             cbIVOffset = 0;
775         wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
776                     skb->data[cbIVOffset + 8 + 24 + 6 + 1];
777
778             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
779         if (wEtherType == ETH_P_PAE) {
780             skb->dev = pDevice->apdev;
781
782             if (bIsWEP == TRUE) {
783                 // strip IV header(8)
784                 memcpy(&abyMacHdr[0], (skb->data + 8), 24);
785                 memcpy((skb->data + 8 + cbIVOffset), &abyMacHdr[0], 24);
786             }
787
788             skb->data +=  (cbIVOffset + 8);
789             skb->tail +=  (cbIVOffset + 8);
790             skb_put(skb, FrameSize);
791             skb_reset_mac_header(skb);
792             skb->pkt_type = PACKET_OTHERHOST;
793             skb->protocol = htons(ETH_P_802_2);
794             memset(skb->cb, 0, sizeof(skb->cb));
795             netif_rx(skb);
796             return TRUE;
797
798         }
799         // check if 802.1x authorized
800         if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
801             return FALSE;
802     }
803
804
805     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
806         if (bIsWEP) {
807             FrameSize -= 8;  //MIC
808         }
809     }
810
811     //--------------------------------------------------------------------------------
812     // Soft MIC
813     if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
814         if (bIsWEP) {
815             PDWORD          pdwMIC_L;
816             PDWORD          pdwMIC_R;
817             DWORD           dwMIC_Priority;
818             DWORD           dwMICKey0 = 0, dwMICKey1 = 0;
819             DWORD           dwLocalMIC_L = 0;
820             DWORD           dwLocalMIC_R = 0;
821             viawget_wpa_header *wpahdr;
822
823
824             if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
825                 dwMICKey0 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[24]));
826                 dwMICKey1 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[28]));
827             }
828             else {
829                 if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
830                     dwMICKey0 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[16]));
831                     dwMICKey1 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[20]));
832                 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
833                     dwMICKey0 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[16]));
834                     dwMICKey1 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[20]));
835                 } else {
836                     dwMICKey0 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[24]));
837                     dwMICKey1 = cpu_to_le32(*(PDWORD)(&pKey->abyKey[28]));
838                 }
839             }
840
841             MIC_vInit(dwMICKey0, dwMICKey1);
842             MIC_vAppend((PBYTE)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
843             dwMIC_Priority = 0;
844             MIC_vAppend((PBYTE)&dwMIC_Priority, 4);
845             // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
846             MIC_vAppend((PBYTE)(skb->data + 8 + WLAN_HDR_ADDR3_LEN + 8),
847                         FrameSize - WLAN_HDR_ADDR3_LEN - 8);
848             MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
849             MIC_vUnInit();
850
851             pdwMIC_L = (PDWORD)(skb->data + 8 + FrameSize);
852             pdwMIC_R = (PDWORD)(skb->data + 8 + FrameSize + 4);
853
854
855             if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
856                 (pDevice->bRxMICFail == TRUE)) {
857                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
858                 pDevice->bRxMICFail = FALSE;
859                 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
860                 pDevice->s802_11Counter.TKIPLocalMICFailures++;
861                 if (bDeFragRx) {
862                     if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
863                         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
864                             pDevice->dev->name);
865                     }
866                 }
867        #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
868                                 //send event to wpa_supplicant
869                                 //if(pDevice->bWPASuppWextEnabled == TRUE)
870                                 {
871                                         union iwreq_data wrqu;
872                                         struct iw_michaelmicfailure ev;
873                                         int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
874                                         memset(&ev, 0, sizeof(ev));
875                                         ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
876                                         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
877                                                         (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
878                                                                 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
879                                                 ev.flags |= IW_MICFAILURE_PAIRWISE;
880                                         } else {
881                                                 ev.flags |= IW_MICFAILURE_GROUP;
882                                         }
883
884                                         ev.src_addr.sa_family = ARPHRD_ETHER;
885                                         memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
886                                         memset(&wrqu, 0, sizeof(wrqu));
887                                         wrqu.data.length = sizeof(ev);
888                         PRINT_K("wireless_send_event--->IWEVMICHAELMICFAILURE\n");
889                                         wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
890
891                                 }
892          #endif
893
894
895                 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
896                      wpahdr = (viawget_wpa_header *)pDevice->skb->data;
897                      if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
898                          (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
899                          (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
900                          //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
901                          wpahdr->type = VIAWGET_PTK_MIC_MSG;
902                      } else {
903                          //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
904                          wpahdr->type = VIAWGET_GTK_MIC_MSG;
905                      }
906                      wpahdr->resp_ie_len = 0;
907                      wpahdr->req_ie_len = 0;
908                      skb_put(pDevice->skb, sizeof(viawget_wpa_header));
909                      pDevice->skb->dev = pDevice->wpadev;
910                      skb_reset_mac_header(pDevice->skb);
911                      pDevice->skb->pkt_type = PACKET_HOST;
912                      pDevice->skb->protocol = htons(ETH_P_802_2);
913                      memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
914                      netif_rx(pDevice->skb);
915                      pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
916                  };
917
918                 return FALSE;
919
920             }
921         }
922     } //---end of SOFT MIC-----------------------------------------------------------------------
923
924     // ++++++++++ Reply Counter Check +++++++++++++
925
926     if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
927                            (pKey->byCipherSuite == KEY_CTL_CCMP))) {
928         if (bIsWEP) {
929             WORD        wLocalTSC15_0 = 0;
930             DWORD       dwLocalTSC47_16 = 0;
931             unsigned long long       RSC = 0;
932             // endian issues
933             RSC = *((unsigned long long *) &(pKey->KeyRSC));
934             wLocalTSC15_0 = (WORD) RSC;
935             dwLocalTSC47_16 = (DWORD) (RSC>>16);
936
937             RSC = dwRxTSC47_16;
938             RSC <<= 16;
939             RSC += wRxTSC15_0;
940             memcpy(&(pKey->KeyRSC), &RSC,  sizeof(QWORD));
941
942             if ( (pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
943                  (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
944                 // check RSC
945                 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
946                      (dwRxTSC47_16 <= dwLocalTSC47_16) &&
947                      !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
948                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
949                     if (pKey->byCipherSuite == KEY_CTL_TKIP)
950                         //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
951                         pDevice->s802_11Counter.TKIPReplays++;
952                     else
953                         //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
954                         pDevice->s802_11Counter.CCMPReplays++;
955
956                     if (bDeFragRx) {
957                         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
958                             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
959                                 pDevice->dev->name);
960                         }
961                     }
962                     return FALSE;
963                 }
964             }
965         }
966     } // ----- End of Reply Counter Check --------------------------
967
968
969     s_vProcessRxMACHeader(pDevice, (PBYTE)(skb->data+8), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
970     FrameSize -= cbHeaderOffset;
971     cbHeaderOffset += 8;        // 8 is Rcv buffer header
972
973     // Null data, framesize = 12
974     if (FrameSize < 12)
975         return FALSE;
976
977     if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
978         if (s_bAPModeRxData(pDevice,
979                             skb,
980                             FrameSize,
981                             cbHeaderOffset,
982                             iSANodeIndex,
983                             iDANodeIndex
984                             ) == FALSE) {
985
986             if (bDeFragRx) {
987                 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
988                     DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
989                     pDevice->dev->name);
990                 }
991             }
992             return FALSE;
993         }
994
995     }
996
997         skb->data += cbHeaderOffset;
998         skb->tail += cbHeaderOffset;
999     skb_put(skb, FrameSize);
1000     skb->protocol=eth_type_trans(skb, skb->dev);
1001     skb->ip_summed=CHECKSUM_NONE;
1002     pStats->rx_bytes +=skb->len;
1003     pStats->rx_packets++;
1004     netif_rx(skb);
1005     if (bDeFragRx) {
1006         if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
1007             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
1008                 pDevice->dev->name);
1009         }
1010         return FALSE;
1011     }
1012
1013     return TRUE;
1014 }
1015
1016
1017 static BOOL s_bAPModeRxCtl (
1018      PSDevice pDevice,
1019      PBYTE    pbyFrame,
1020      signed int      iSANodeIndex
1021     )
1022 {
1023     PS802_11Header      p802_11Header;
1024     CMD_STATUS          Status;
1025     PSMgmtObject        pMgmt = &(pDevice->sMgmtObj);
1026
1027
1028     if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1029
1030         p802_11Header = (PS802_11Header) (pbyFrame);
1031         if (!IS_TYPE_MGMT(pbyFrame)) {
1032
1033             // Data & PS-Poll packet
1034             // check frame class
1035             if (iSANodeIndex > 0) {
1036                 // frame class 3 fliter & checking
1037                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1038                     // send deauth notification
1039                     // reason = (6) class 2 received from nonauth sta
1040                     vMgrDeAuthenBeginSta(pDevice,
1041                                          pMgmt,
1042                                          (PBYTE)(p802_11Header->abyAddr2),
1043                                          (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1044                                          &Status
1045                                          );
1046                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1047                     return TRUE;
1048                 };
1049                 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1050                     // send deassoc notification
1051                     // reason = (7) class 3 received from nonassoc sta
1052                     vMgrDisassocBeginSta(pDevice,
1053                                          pMgmt,
1054                                          (PBYTE)(p802_11Header->abyAddr2),
1055                                          (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1056                                          &Status
1057                                          );
1058                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1059                     return TRUE;
1060                 };
1061
1062                 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1063                     // delcare received ps-poll event
1064                     if (IS_CTL_PSPOLL(pbyFrame)) {
1065                         pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = TRUE;
1066                         bScheduleCommand((void *) pDevice,
1067                                          WLAN_CMD_RX_PSPOLL,
1068                                          NULL);
1069                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1070                     }
1071                     else {
1072                         // check Data PS state
1073                         // if PW bit off, send out all PS bufferring packets.
1074                         if (!IS_FC_POWERMGT(pbyFrame)) {
1075                             pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = FALSE;
1076                             pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = TRUE;
1077                                 bScheduleCommand((void *) pDevice,
1078                                                  WLAN_CMD_RX_PSPOLL,
1079                                                  NULL);
1080                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1081                         }
1082                     }
1083                 }
1084                 else {
1085                    if (IS_FC_POWERMGT(pbyFrame)) {
1086                        pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = TRUE;
1087                        // Once if STA in PS state, enable multicast bufferring
1088                        pMgmt->sNodeDBTable[0].bPSEnable = TRUE;
1089                    }
1090                    else {
1091                       // clear all pending PS frame.
1092                       if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1093                           pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = FALSE;
1094                           pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = TRUE;
1095                         bScheduleCommand((void *) pDevice,
1096                                          WLAN_CMD_RX_PSPOLL,
1097                                          NULL);
1098                          DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1099
1100                       }
1101                    }
1102                 }
1103             }
1104             else {
1105                   vMgrDeAuthenBeginSta(pDevice,
1106                                        pMgmt,
1107                                        (PBYTE)(p802_11Header->abyAddr2),
1108                                        (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1109                                        &Status
1110                                        );
1111                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1112                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%02x-%02x-%02x=%02x-%02x-%02x \n",
1113                                 p802_11Header->abyAddr3[0],
1114                                 p802_11Header->abyAddr3[1],
1115                                 p802_11Header->abyAddr3[2],
1116                                 p802_11Header->abyAddr3[3],
1117                                 p802_11Header->abyAddr3[4],
1118                                 p802_11Header->abyAddr3[5]
1119                                );
1120                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%02x-%02x-%02x=%02x-%02x-%02x \n",
1121                                 p802_11Header->abyAddr2[0],
1122                                 p802_11Header->abyAddr2[1],
1123                                 p802_11Header->abyAddr2[2],
1124                                 p802_11Header->abyAddr2[3],
1125                                 p802_11Header->abyAddr2[4],
1126                                 p802_11Header->abyAddr2[5]
1127                                );
1128                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%02x-%02x-%02x=%02x-%02x-%02x \n",
1129                                 p802_11Header->abyAddr1[0],
1130                                 p802_11Header->abyAddr1[1],
1131                                 p802_11Header->abyAddr1[2],
1132                                 p802_11Header->abyAddr1[3],
1133                                 p802_11Header->abyAddr1[4],
1134                                 p802_11Header->abyAddr1[5]
1135                                );
1136                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl );
1137                     return TRUE;
1138             }
1139         }
1140     }
1141     return FALSE;
1142
1143 }
1144
1145 static BOOL s_bHandleRxEncryption (
1146      PSDevice     pDevice,
1147      PBYTE        pbyFrame,
1148      unsigned int         FrameSize,
1149      PBYTE        pbyRsr,
1150      PBYTE       pbyNewRsr,
1151      PSKeyItem   * pKeyOut,
1152     int *       pbExtIV,
1153      PWORD       pwRxTSC15_0,
1154      PDWORD      pdwRxTSC47_16
1155     )
1156 {
1157     unsigned int            PayloadLen = FrameSize;
1158     PBYTE           pbyIV;
1159     BYTE            byKeyIdx;
1160     PSKeyItem       pKey = NULL;
1161     BYTE            byDecMode = KEY_CTL_WEP;
1162     PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
1163
1164
1165     *pwRxTSC15_0 = 0;
1166     *pdwRxTSC47_16 = 0;
1167
1168     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1169     if ( WLAN_GET_FC_TODS(*(PWORD)pbyFrame) &&
1170          WLAN_GET_FC_FROMDS(*(PWORD)pbyFrame) ) {
1171          pbyIV += 6;             // 6 is 802.11 address4
1172          PayloadLen -= 6;
1173     }
1174     byKeyIdx = (*(pbyIV+3) & 0xc0);
1175     byKeyIdx >>= 6;
1176     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1177
1178     if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1179         (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1180         (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1181         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1182         (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1183         if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1184             (pMgmt->byCSSPK != KEY_CTL_NONE)) {
1185             // unicast pkt use pairwise key
1186             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1187             if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == TRUE) {
1188                 if (pMgmt->byCSSPK == KEY_CTL_TKIP)
1189                     byDecMode = KEY_CTL_TKIP;
1190                 else if (pMgmt->byCSSPK == KEY_CTL_CCMP)
1191                     byDecMode = KEY_CTL_CCMP;
1192             }
1193             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1194         } else {
1195             // use group key
1196             KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1197             if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1198                 byDecMode = KEY_CTL_TKIP;
1199             else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1200                 byDecMode = KEY_CTL_CCMP;
1201             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1202         }
1203     }
1204     // our WEP only support Default Key
1205     if (pKey == NULL) {
1206         // use default group key
1207         KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1208         if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1209             byDecMode = KEY_CTL_TKIP;
1210         else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1211             byDecMode = KEY_CTL_CCMP;
1212     }
1213     *pKeyOut = pKey;
1214
1215     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
1216
1217     if (pKey == NULL) {
1218         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1219         if (byDecMode == KEY_CTL_WEP) {
1220 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1221         } else if (pDevice->bLinkPass == TRUE) {
1222 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1223         }
1224         return FALSE;
1225     }
1226     if (byDecMode != pKey->byCipherSuite) {
1227         if (byDecMode == KEY_CTL_WEP) {
1228 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1229         } else if (pDevice->bLinkPass == TRUE) {
1230 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1231         }
1232         *pKeyOut = NULL;
1233         return FALSE;
1234     }
1235     if (byDecMode == KEY_CTL_WEP) {
1236         // handle WEP
1237         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1238             (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == TRUE)) {
1239             // Software WEP
1240             // 1. 3253A
1241             // 2. WEP 256
1242
1243             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1244             memcpy(pDevice->abyPRNG, pbyIV, 3);
1245             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1246             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1247             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1248
1249             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1250                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1251             }
1252         }
1253     } else if ((byDecMode == KEY_CTL_TKIP) ||
1254                (byDecMode == KEY_CTL_CCMP)) {
1255         // TKIP/AES
1256
1257         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1258         *pdwRxTSC47_16 = cpu_to_le32(*(PDWORD)(pbyIV + 4));
1259         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1260         if (byDecMode == KEY_CTL_TKIP) {
1261             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1262         } else {
1263             *pwRxTSC15_0 = cpu_to_le16(*(PWORD)pbyIV);
1264         }
1265         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1266
1267         if ((byDecMode == KEY_CTL_TKIP) &&
1268             (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1269             // Software TKIP
1270             // 1. 3253 A
1271             PS802_11Header  pMACHeader = (PS802_11Header) (pbyFrame);
1272             TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1273             rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1274             rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1275             if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1276                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1277                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1278             } else {
1279                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1280                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1281             }
1282         }
1283     }// end of TKIP/AES
1284
1285     if ((*(pbyIV+3) & 0x20) != 0)
1286         *pbExtIV = TRUE;
1287     return TRUE;
1288 }
1289
1290
1291 static BOOL s_bHostWepRxEncryption (
1292      PSDevice     pDevice,
1293      PBYTE        pbyFrame,
1294      unsigned int         FrameSize,
1295      PBYTE        pbyRsr,
1296      BOOL         bOnFly,
1297      PSKeyItem    pKey,
1298      PBYTE       pbyNewRsr,
1299     int *       pbExtIV,
1300      PWORD       pwRxTSC15_0,
1301      PDWORD      pdwRxTSC47_16
1302     )
1303 {
1304     PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
1305     unsigned int            PayloadLen = FrameSize;
1306     PBYTE           pbyIV;
1307     BYTE            byKeyIdx;
1308     BYTE            byDecMode = KEY_CTL_WEP;
1309     PS802_11Header  pMACHeader;
1310
1311
1312
1313     *pwRxTSC15_0 = 0;
1314     *pdwRxTSC47_16 = 0;
1315
1316     pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1317     if ( WLAN_GET_FC_TODS(*(PWORD)pbyFrame) &&
1318          WLAN_GET_FC_FROMDS(*(PWORD)pbyFrame) ) {
1319          pbyIV += 6;             // 6 is 802.11 address4
1320          PayloadLen -= 6;
1321     }
1322     byKeyIdx = (*(pbyIV+3) & 0xc0);
1323     byKeyIdx >>= 6;
1324     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1325
1326
1327     if (pMgmt->byCSSGK == KEY_CTL_TKIP)
1328         byDecMode = KEY_CTL_TKIP;
1329     else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
1330         byDecMode = KEY_CTL_CCMP;
1331
1332     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
1333
1334     if (byDecMode != pKey->byCipherSuite) {
1335         if (byDecMode == KEY_CTL_WEP) {
1336 //            pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1337         } else if (pDevice->bLinkPass == TRUE) {
1338 //            pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1339         }
1340         return FALSE;
1341     }
1342
1343     if (byDecMode == KEY_CTL_WEP) {
1344         // handle WEP
1345         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP \n");
1346         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1347             (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == TRUE) ||
1348             (bOnFly == FALSE)) {
1349             // Software WEP
1350             // 1. 3253A
1351             // 2. WEP 256
1352             // 3. NotOnFly
1353
1354             PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1355             memcpy(pDevice->abyPRNG, pbyIV, 3);
1356             memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1357             rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1358             rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1359
1360             if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1361                 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1362             }
1363         }
1364     } else if ((byDecMode == KEY_CTL_TKIP) ||
1365                (byDecMode == KEY_CTL_CCMP)) {
1366         // TKIP/AES
1367
1368         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1369         *pdwRxTSC47_16 = cpu_to_le32(*(PDWORD)(pbyIV + 4));
1370         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1371
1372         if (byDecMode == KEY_CTL_TKIP) {
1373             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1374         } else {
1375             *pwRxTSC15_0 = cpu_to_le16(*(PWORD)pbyIV);
1376         }
1377         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1378
1379         if (byDecMode == KEY_CTL_TKIP) {
1380
1381             if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == FALSE)) {
1382                 // Software TKIP
1383                 // 1. 3253 A
1384                 // 2. NotOnFly
1385                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1386                 pMACHeader = (PS802_11Header) (pbyFrame);
1387                 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1388                 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1389                 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1390                 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1391                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1392                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1393                 } else {
1394                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1395                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1396                 }
1397             }
1398         }
1399
1400         if (byDecMode == KEY_CTL_CCMP) {
1401             if (bOnFly == FALSE) {
1402                 // Software CCMP
1403                 // NotOnFly
1404                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1405                 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1406                     *pbyNewRsr |= NEWRSR_DECRYPTOK;
1407                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1408                 } else {
1409                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1410                 }
1411             }
1412         }
1413
1414     }// end of TKIP/AES
1415
1416     if ((*(pbyIV+3) & 0x20) != 0)
1417         *pbExtIV = TRUE;
1418     return TRUE;
1419 }
1420
1421
1422
1423 static BOOL s_bAPModeRxData (
1424      PSDevice pDevice,
1425      struct sk_buff *skb,
1426      unsigned int     FrameSize,
1427      unsigned int     cbHeaderOffset,
1428      signed int      iSANodeIndex,
1429      signed int      iDANodeIndex
1430     )
1431
1432 {
1433     PSMgmtObject        pMgmt = &(pDevice->sMgmtObj);
1434     BOOL                bRelayAndForward = FALSE;
1435     BOOL                bRelayOnly = FALSE;
1436     BYTE                byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1437     WORD                wAID;
1438
1439
1440     struct sk_buff* skbcpy = NULL;
1441
1442     if (FrameSize > CB_MAX_BUF_SIZE)
1443         return FALSE;
1444     // check DA
1445     if (is_multicast_ether_addr((PBYTE)(skb->data+cbHeaderOffset))) {
1446        if (pMgmt->sNodeDBTable[0].bPSEnable) {
1447
1448            skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1449
1450         // if any node in PS mode, buffer packet until DTIM.
1451            if (skbcpy == NULL) {
1452                DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1453            }
1454            else {
1455                skbcpy->dev = pDevice->dev;
1456                skbcpy->len = FrameSize;
1457                memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1458                skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1459                pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1460                // set tx map
1461                pMgmt->abyPSTxMap[0] |= byMask[0];
1462            }
1463        }
1464        else {
1465            bRelayAndForward = TRUE;
1466        }
1467     }
1468     else {
1469         // check if relay
1470         if (BSSbIsSTAInNodeDB(pDevice, (PBYTE)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1471             if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1472                 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1473                     // queue this skb until next PS tx, and then release.
1474
1475                         skb->data += cbHeaderOffset;
1476                         skb->tail += cbHeaderOffset;
1477                     skb_put(skb, FrameSize);
1478                     skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1479
1480                     pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1481                     wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1482                     pMgmt->abyPSTxMap[wAID >> 3] |=  byMask[wAID & 7];
1483                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1484                                iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1485                     return TRUE;
1486                 }
1487                 else {
1488                     bRelayOnly = TRUE;
1489                 }
1490             }
1491         };
1492     }
1493
1494     if (bRelayOnly || bRelayAndForward) {
1495         // relay this packet right now
1496         if (bRelayAndForward)
1497             iDANodeIndex = 0;
1498
1499         if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1500                 bRelayPacketSend(pDevice, (PBYTE) (skb->data + cbHeaderOffset),
1501                                  FrameSize, (unsigned int) iDANodeIndex);
1502         }
1503
1504         if (bRelayOnly)
1505             return FALSE;
1506     }
1507     // none associate, don't forward
1508     if (pDevice->uAssocCount == 0)
1509         return FALSE;
1510
1511     return TRUE;
1512 }
1513
1514
1515
1516
1517 void RXvWorkItem(void *Context)
1518 {
1519     PSDevice pDevice = (PSDevice) Context;
1520     int ntStatus;
1521     PRCB            pRCB=NULL;
1522
1523     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Polling Thread\n");
1524     spin_lock_irq(&pDevice->lock);
1525
1526     while ((pDevice->Flags & fMP_POST_READS) &&
1527             MP_IS_READY(pDevice) &&
1528             (pDevice->NumRecvFreeList != 0) ) {
1529         pRCB = pDevice->FirstRecvFreeList;
1530         pDevice->NumRecvFreeList--;
1531         ASSERT(pRCB);// cannot be NULL
1532         DequeueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList);
1533         ntStatus = PIPEnsBulkInUsbRead(pDevice, pRCB);
1534     }
1535     pDevice->bIsRxWorkItemQueued = FALSE;
1536     spin_unlock_irq(&pDevice->lock);
1537
1538 }
1539
1540
1541 void
1542 RXvFreeRCB(
1543      PRCB pRCB,
1544      BOOL bReAllocSkb
1545     )
1546 {
1547     PSDevice pDevice = (PSDevice)pRCB->pDevice;
1548
1549
1550     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->RXvFreeRCB\n");
1551
1552     ASSERT(!pRCB->Ref);     // should be 0
1553     ASSERT(pRCB->pDevice);  // shouldn't be NULL
1554
1555     if (bReAllocSkb == TRUE) {
1556         pRCB->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1557         // todo error handling
1558         if (pRCB->skb == NULL) {
1559             DBG_PRT(MSG_LEVEL_ERR,KERN_ERR" Failed to re-alloc rx skb\n");
1560         }else {
1561             pRCB->skb->dev = pDevice->dev;
1562         }
1563     }
1564     //
1565     // Insert the RCB back in the Recv free list
1566     //
1567     EnqueueRCB(pDevice->FirstRecvFreeList, pDevice->LastRecvFreeList, pRCB);
1568     pDevice->NumRecvFreeList++;
1569
1570
1571     if ((pDevice->Flags & fMP_POST_READS) && MP_IS_READY(pDevice) &&
1572         (pDevice->bIsRxWorkItemQueued == FALSE) ) {
1573
1574         pDevice->bIsRxWorkItemQueued = TRUE;
1575         tasklet_schedule(&pDevice->ReadWorkItem);
1576     }
1577     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
1578 }
1579
1580
1581 void RXvMngWorkItem(void *Context)
1582 {
1583     PSDevice pDevice = (PSDevice) Context;
1584     PRCB            pRCB=NULL;
1585     PSRxMgmtPacket  pRxPacket;
1586     BOOL            bReAllocSkb = FALSE;
1587
1588     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Mng Thread\n");
1589
1590     spin_lock_irq(&pDevice->lock);
1591     while (pDevice->NumRecvMngList!=0)
1592     {
1593         pRCB = pDevice->FirstRecvMngList;
1594         pDevice->NumRecvMngList--;
1595         DequeueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList);
1596         if(!pRCB){
1597             break;
1598         }
1599         ASSERT(pRCB);// cannot be NULL
1600         pRxPacket = &(pRCB->sMngPacket);
1601         vMgrRxManagePacket((void *) pDevice, &(pDevice->sMgmtObj), pRxPacket);
1602         pRCB->Ref--;
1603         if(pRCB->Ref == 0) {
1604             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeMng %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
1605             RXvFreeRCB(pRCB, bReAllocSkb);
1606         } else {
1607             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rx Mng Only we have the right to free RCB\n");
1608         }
1609     }
1610
1611         pDevice->bIsRxMngWorkItemQueued = FALSE;
1612         spin_unlock_irq(&pDevice->lock);
1613
1614 }
1615
1616