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staging: vt6655: Remove commented out printks
[linux-2.6/btrfs-unstable.git] / drivers / staging / vt6655 / dpc.c
blob7719edf0c0810006d9b100d376d139559176cd00
1 /*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * File: dpc.c
20 *
21 * Purpose: handle dpc rx functions
22 *
23 * Author: Lyndon Chen
24 *
25 * Date: May 20, 2003
26 *
27 * Functions:
28 * device_receive_frame - Rcv 802.11 frame function
29 * s_bAPModeRxCtl- AP Rcv frame filer Ctl.
30 * s_bAPModeRxData- AP Rcv data frame handle
31 * s_bHandleRxEncryption- Rcv decrypted data via on-fly
32 * s_bHostWepRxEncryption- Rcv encrypted data via host
33 * s_byGetRateIdx- get rate index
34 * s_vGetDASA- get data offset
35 * s_vProcessRxMACHeader- Rcv 802.11 and translate to 802.3
36 *
37 * Revision History:
38 *
39 */
40
41 #include "device.h"
42 #include "rxtx.h"
43 #include "tether.h"
44 #include "card.h"
45 #include "bssdb.h"
46 #include "mac.h"
47 #include "baseband.h"
48 #include "michael.h"
49 #include "tkip.h"
50 #include "tcrc.h"
51 #include "wctl.h"
52 #include "wroute.h"
53 #include "hostap.h"
54 #include "rf.h"
55 #include "iowpa.h"
56 #include "aes_ccmp.h"
57
58
59
60 /*--------------------- Static Definitions -------------------------*/
61
62 /*--------------------- Static Classes ----------------------------*/
63
64 /*--------------------- Static Variables --------------------------*/
65 //static int msglevel =MSG_LEVEL_DEBUG;
66 static int msglevel = MSG_LEVEL_INFO;
67
68 const unsigned char acbyRxRate[MAX_RATE] =
69 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
70
71
72 /*--------------------- Static Functions --------------------------*/
73
74 /*--------------------- Static Definitions -------------------------*/
75
76 /*--------------------- Static Functions --------------------------*/
77
78 static unsigned char s_byGetRateIdx(unsigned char byRate);
79
80
81 static void
82 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
83 PSEthernetHeader psEthHeader);
84
85 static void
86 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
87 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
88 unsigned int *pcbHeadSize);
89
90 static bool s_bAPModeRxCtl(
91 PSDevice pDevice,
92 unsigned char *pbyFrame,
93 int iSANodeIndex
94 );
95
96
97
98 static bool s_bAPModeRxData(
99 PSDevice pDevice,
100 struct sk_buff *skb,
101 unsigned int FrameSize,
102 unsigned int cbHeaderOffset,
103 int iSANodeIndex,
104 int iDANodeIndex
105 );
106
107
108 static bool s_bHandleRxEncryption(
109 PSDevice pDevice,
110 unsigned char *pbyFrame,
111 unsigned int FrameSize,
112 unsigned char *pbyRsr,
113 unsigned char *pbyNewRsr,
114 PSKeyItem *pKeyOut,
115 bool *pbExtIV,
116 unsigned short *pwRxTSC15_0,
117 unsigned long *pdwRxTSC47_16
118 );
119
120 static bool s_bHostWepRxEncryption(
121
122 PSDevice pDevice,
123 unsigned char *pbyFrame,
124 unsigned int FrameSize,
125 unsigned char *pbyRsr,
126 bool bOnFly,
127 PSKeyItem pKey,
128 unsigned char *pbyNewRsr,
129 bool *pbExtIV,
130 unsigned short *pwRxTSC15_0,
131 unsigned long *pdwRxTSC47_16
132
133 );
134
135 /*--------------------- Export Variables --------------------------*/
136
137 /*+
138 *
139 * Description:
140 * Translate Rcv 802.11 header to 802.3 header with Rx buffer
141 *
142 * Parameters:
143 * In:
144 * pDevice
145 * dwRxBufferAddr - Address of Rcv Buffer
146 * cbPacketSize - Rcv Packet size
147 * bIsWEP - If Rcv with WEP
148 * Out:
149 * pcbHeaderSize - 802.11 header size
150 *
151 * Return Value: None
152 *
153 -*/
154 static void
155 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
156 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
157 unsigned int *pcbHeadSize)
158 {
159 unsigned char *pbyRxBuffer;
160 unsigned int cbHeaderSize = 0;
161 unsigned short *pwType;
162 PS802_11Header pMACHeader;
163 int ii;
164
165
166 pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
167
168 s_vGetDASA((unsigned char *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
169
170 if (bIsWEP) {
171 if (bExtIV) {
172 // strip IV&ExtIV , add 8 byte
173 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
174 } else {
175 // strip IV , add 4 byte
176 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
177 }
178 }
179 else {
180 cbHeaderSize += WLAN_HDR_ADDR3_LEN;
181 };
182
183 pbyRxBuffer = (unsigned char *)(pbyRxBufferAddr + cbHeaderSize);
184 if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
185 cbHeaderSize += 6;
186 }
187 else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
188 cbHeaderSize += 6;
189 pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
190 if ((*pwType != TYPE_PKT_IPX) && (*pwType != cpu_to_le16(0xF380))) {
191 }
192 else {
193 cbHeaderSize -= 8;
194 pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
195 if (bIsWEP) {
196 if (bExtIV) {
197 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
198 } else {
199 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
200 }
201 }
202 else {
203 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
204 }
205 }
206 }
207 else {
208 cbHeaderSize -= 2;
209 pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
210 if (bIsWEP) {
211 if (bExtIV) {
212 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
213 } else {
214 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
215 }
216 }
217 else {
218 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
219 }
220 }
221
222 cbHeaderSize -= (ETH_ALEN * 2);
223 pbyRxBuffer = (unsigned char *)(pbyRxBufferAddr + cbHeaderSize);
224 for (ii = 0; ii < ETH_ALEN; ii++)
225 *pbyRxBuffer++ = pDevice->sRxEthHeader.abyDstAddr[ii];
226 for (ii = 0; ii < ETH_ALEN; ii++)
227 *pbyRxBuffer++ = pDevice->sRxEthHeader.abySrcAddr[ii];
228
229 *pcbHeadSize = cbHeaderSize;
230 }
231
232
233
234
235 static unsigned char s_byGetRateIdx(unsigned char byRate)
236 {
237 unsigned char byRateIdx;
238
239 for (byRateIdx = 0; byRateIdx < MAX_RATE; byRateIdx++) {
240 if (acbyRxRate[byRateIdx % MAX_RATE] == byRate)
241 return byRateIdx;
242 }
243 return 0;
244 }
245
246
247 static void
248 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
249 PSEthernetHeader psEthHeader)
250 {
251 unsigned int cbHeaderSize = 0;
252 PS802_11Header pMACHeader;
253 int ii;
254
255 pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
256
257 if ((pMACHeader->wFrameCtl & FC_TODS) == 0) {
258 if (pMACHeader->wFrameCtl & FC_FROMDS) {
259 for (ii = 0; ii < ETH_ALEN; ii++) {
260 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
261 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr3[ii];
262 }
263 }
264 else {
265 // IBSS mode
266 for (ii = 0; ii < ETH_ALEN; ii++) {
267 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
268 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
269 }
270 }
271 }
272 else {
273 // Is AP mode..
274 if (pMACHeader->wFrameCtl & FC_FROMDS) {
275 for (ii = 0; ii < ETH_ALEN; ii++) {
276 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
277 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr4[ii];
278 cbHeaderSize += 6;
279 }
280 }
281 else {
282 for (ii = 0; ii < ETH_ALEN; ii++) {
283 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
284 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
285 }
286 }
287 };
288 *pcbHeaderSize = cbHeaderSize;
289 }
290
291
292
293
294 //PLICE_DEBUG ->
295
296 void MngWorkItem(void *Context)
297 {
298 PSRxMgmtPacket pRxMgmtPacket;
299 PSDevice pDevice = (PSDevice) Context;
300
301 spin_lock_irq(&pDevice->lock);
302 while (pDevice->rxManeQueue.packet_num != 0)
303 {
304 pRxMgmtPacket = DeQueue(pDevice);
305 vMgrRxManagePacket(pDevice, pDevice->pMgmt, pRxMgmtPacket);
306 }
307 spin_unlock_irq(&pDevice->lock);
308 }
309
310
311 //PLICE_DEBUG<-
312
313
314
315 bool
316 device_receive_frame(
317 PSDevice pDevice,
318 PSRxDesc pCurrRD
319 )
320 {
321
322 PDEVICE_RD_INFO pRDInfo = pCurrRD->pRDInfo;
323 struct net_device_stats *pStats = &pDevice->stats;
324 struct sk_buff *skb;
325 PSMgmtObject pMgmt = pDevice->pMgmt;
326 PSRxMgmtPacket pRxPacket = &(pDevice->pMgmt->sRxPacket);
327 PS802_11Header p802_11Header;
328 unsigned char *pbyRsr;
329 unsigned char *pbyNewRsr;
330 unsigned char *pbyRSSI;
331 PQWORD pqwTSFTime;
332 unsigned short *pwFrameSize;
333 unsigned char *pbyFrame;
334 bool bDeFragRx = false;
335 bool bIsWEP = false;
336 unsigned int cbHeaderOffset;
337 unsigned int FrameSize;
338 unsigned short wEtherType = 0;
339 int iSANodeIndex = -1;
340 int iDANodeIndex = -1;
341 unsigned int ii;
342 unsigned int cbIVOffset;
343 bool bExtIV = false;
344 unsigned char *pbyRxSts;
345 unsigned char *pbyRxRate;
346 unsigned char *pbySQ;
347 unsigned int cbHeaderSize;
348 PSKeyItem pKey = NULL;
349 unsigned short wRxTSC15_0 = 0;
350 unsigned long dwRxTSC47_16 = 0;
351 SKeyItem STempKey;
352 // 802.11h RPI
353 unsigned long dwDuration = 0;
354 long ldBm = 0;
355 long ldBmThreshold = 0;
356 PS802_11Header pMACHeader;
357 bool bRxeapol_key = false;
358
359 // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- device_receive_frame---\n");
360
361 skb = pRDInfo->skb;
362
363
364 //PLICE_DEBUG->
365 #if 1
366 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
367 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
368 #endif
369 //PLICE_DEBUG<-
370 pwFrameSize = (unsigned short *)(skb->data + 2);
371 FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
372
373 // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
374 // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
375 if ((FrameSize > 2364) || (FrameSize <= 32)) {
376 // Frame Size error drop this packet.
377 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 1 \n");
378 return false;
379 }
380
381 pbyRxSts = (unsigned char *)(skb->data);
382 pbyRxRate = (unsigned char *)(skb->data + 1);
383 pbyRsr = (unsigned char *)(skb->data + FrameSize - 1);
384 pbyRSSI = (unsigned char *)(skb->data + FrameSize - 2);
385 pbyNewRsr = (unsigned char *)(skb->data + FrameSize - 3);
386 pbySQ = (unsigned char *)(skb->data + FrameSize - 4);
387 pqwTSFTime = (PQWORD)(skb->data + FrameSize - 12);
388 pbyFrame = (unsigned char *)(skb->data + 4);
389
390 // get packet size
391 FrameSize = cpu_to_le16(*pwFrameSize);
392
393 if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
394 // Min: 14 bytes ACK
395 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2 \n");
396 return false;
397 }
398 //PLICE_DEBUG->
399 #if 1
400 // update receive statistic counter
401 STAvUpdateRDStatCounter(&pDevice->scStatistic,
402 *pbyRsr,
403 *pbyNewRsr,
404 *pbyRxRate,
405 pbyFrame,
406 FrameSize);
407
408 #endif
409
410 pMACHeader = (PS802_11Header)((unsigned char *)(skb->data) + 8);
411 //PLICE_DEBUG<-
412 if (pDevice->bMeasureInProgress == true) {
413 if ((*pbyRsr & RSR_CRCOK) != 0) {
414 pDevice->byBasicMap |= 0x01;
415 }
416 dwDuration = (FrameSize << 4);
417 dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
418 if (*pbyRxRate <= RATE_11M) {
419 if (*pbyRxSts & 0x01) {
420 // long preamble
421 dwDuration += 192;
422 } else {
423 // short preamble
424 dwDuration += 96;
425 }
426 } else {
427 dwDuration += 16;
428 }
429 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
430 ldBmThreshold = -57;
431 for (ii = 7; ii > 0;) {
432 if (ldBm > ldBmThreshold) {
433 break;
434 }
435 ldBmThreshold -= 5;
436 ii--;
437 }
438 pDevice->dwRPIs[ii] += dwDuration;
439 return false;
440 }
441
442 if (!is_multicast_ether_addr(pbyFrame)) {
443 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header)(skb->data + 4))) {
444 pDevice->s802_11Counter.FrameDuplicateCount++;
445 return false;
446 }
447 }
448
449
450 // Use for TKIP MIC
451 s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
452
453 // filter packet send from myself
454 if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
455 return false;
456
457 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
458 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
459 p802_11Header = (PS802_11Header)(pbyFrame);
460 // get SA NodeIndex
461 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
462 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
463 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
464 }
465 }
466 }
467
468 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
469 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
470 return false;
471 }
472 }
473
474
475 if (IS_FC_WEP(pbyFrame)) {
476 bool bRxDecryOK = false;
477
478 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx WEP pkt\n");
479 bIsWEP = true;
480 if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
481 pKey = &STempKey;
482 pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
483 pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
484 pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
485 pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
486 pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
487 memcpy(pKey->abyKey,
488 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
489 pKey->uKeyLength
490 );
491
492 bRxDecryOK = s_bHostWepRxEncryption(pDevice,
493 pbyFrame,
494 FrameSize,
495 pbyRsr,
496 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
497 pKey,
498 pbyNewRsr,
499 &bExtIV,
500 &wRxTSC15_0,
501 &dwRxTSC47_16);
502 } else {
503 bRxDecryOK = s_bHandleRxEncryption(pDevice,
504 pbyFrame,
505 FrameSize,
506 pbyRsr,
507 pbyNewRsr,
508 &pKey,
509 &bExtIV,
510 &wRxTSC15_0,
511 &dwRxTSC47_16);
512 }
513
514 if (bRxDecryOK) {
515 if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
516 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV Fail\n");
517 if ((pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
518 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
519 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
520 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
521 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
522
523 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
524 pDevice->s802_11Counter.TKIPICVErrors++;
525 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
526 pDevice->s802_11Counter.CCMPDecryptErrors++;
527 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
528 // pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
529 }
530 }
531 return false;
532 }
533 } else {
534 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "WEP Func Fail\n");
535 return false;
536 }
537 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
538 FrameSize -= 8; // Message Integrity Code
539 else
540 FrameSize -= 4; // 4 is ICV
541 }
542
543
544 //
545 // RX OK
546 //
547 //remove the CRC length
548 FrameSize -= ETH_FCS_LEN;
549
550 if ((!(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
551 (IS_FRAGMENT_PKT((skb->data+4)))
552 ) {
553 // defragment
554 bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header)(skb->data+4), FrameSize, bIsWEP, bExtIV);
555 pDevice->s802_11Counter.ReceivedFragmentCount++;
556 if (bDeFragRx) {
557 // defrag complete
558 skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
559 FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
560
561 }
562 else {
563 return false;
564 }
565 }
566
567
568 // Management & Control frame Handle
569 if ((IS_TYPE_DATA((skb->data+4))) == false) {
570 // Handle Control & Manage Frame
571
572 if (IS_TYPE_MGMT((skb->data+4))) {
573 unsigned char *pbyData1;
574 unsigned char *pbyData2;
575
576 pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
577 pRxPacket->cbMPDULen = FrameSize;
578 pRxPacket->uRSSI = *pbyRSSI;
579 pRxPacket->bySQ = *pbySQ;
580 HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
581 LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
582 if (bIsWEP) {
583 // strip IV
584 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
585 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
586 for (ii = 0; ii < (FrameSize - 4); ii++) {
587 *pbyData1 = *pbyData2;
588 pbyData1++;
589 pbyData2++;
590 }
591 }
592 pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
593 pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
594 //PLICE_DEBUG->
595 //EnQueue(pDevice,pRxPacket);
596
597 #ifdef THREAD
598 EnQueue(pDevice, pRxPacket);
599
600 //up(&pDevice->mlme_semaphore);
601 //Enque (pDevice->FirstRecvMngList,pDevice->LastRecvMngList,pMgmt);
602 #else
603
604 #ifdef TASK_LET
605 EnQueue(pDevice, pRxPacket);
606 tasklet_schedule(&pDevice->RxMngWorkItem);
607 #else
608 vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
609 //tasklet_schedule(&pDevice->RxMngWorkItem);
610 #endif
611
612 #endif
613 //PLICE_DEBUG<-
614 //vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
615 // hostap Deamon handle 802.11 management
616 if (pDevice->bEnableHostapd) {
617 skb->dev = pDevice->apdev;
618 skb->data += 4;
619 skb->tail += 4;
620 skb_put(skb, FrameSize);
621 skb_reset_mac_header(skb);
622 skb->pkt_type = PACKET_OTHERHOST;
623 skb->protocol = htons(ETH_P_802_2);
624 memset(skb->cb, 0, sizeof(skb->cb));
625 netif_rx(skb);
626 return true;
627 }
628 }
629 else {
630 // Control Frame
631 };
632 return false;
633 }
634 else {
635 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
636 //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
637 if (!(*pbyRsr & RSR_BSSIDOK)) {
638 if (bDeFragRx) {
639 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
640 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
641 pDevice->dev->name);
642 }
643 }
644 return false;
645 }
646 }
647 else {
648 // discard DATA packet while not associate || BSSID error
649 if ((pDevice->bLinkPass == false) ||
650 !(*pbyRsr & RSR_BSSIDOK)) {
651 if (bDeFragRx) {
652 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
653 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
654 pDevice->dev->name);
655 }
656 }
657 return false;
658 }
659 //mike add:station mode check eapol-key challenge--->
660 {
661 unsigned char Protocol_Version; //802.1x Authentication
662 unsigned char Packet_Type; //802.1x Authentication
663 if (bIsWEP)
664 cbIVOffset = 8;
665 else
666 cbIVOffset = 0;
667 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
668 skb->data[cbIVOffset + 8 + 24 + 6 + 1];
669 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 + 1];
670 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 + 1 + 1];
671 if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
672 if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
673 (Packet_Type == 3)) { //802.1x OR eapol-key challenge frame receive
674 bRxeapol_key = true;
675 }
676 }
677 }
678 //mike add:station mode check eapol-key challenge<---
679 }
680 }
681
682
683 // Data frame Handle
684
685
686 if (pDevice->bEnablePSMode) {
687 if (IS_FC_MOREDATA((skb->data+4))) {
688 if (*pbyRsr & RSR_ADDROK) {
689 //PSbSendPSPOLL((PSDevice)pDevice);
690 }
691 }
692 else {
693 if (pDevice->pMgmt->bInTIMWake == true) {
694 pDevice->pMgmt->bInTIMWake = false;
695 }
696 }
697 }
698
699 // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
700 if (pDevice->bDiversityEnable && (FrameSize > 50) &&
701 (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
702 (pDevice->bLinkPass == true)) {
703 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
704 }
705
706
707 if (pDevice->byLocalID != REV_ID_VT3253_B1) {
708 pDevice->uCurrRSSI = *pbyRSSI;
709 }
710 pDevice->byCurrSQ = *pbySQ;
711
712 if ((*pbyRSSI != 0) &&
713 (pMgmt->pCurrBSS != NULL)) {
714 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
715 // Monitor if RSSI is too strong.
716 pMgmt->pCurrBSS->byRSSIStatCnt++;
717 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
718 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
719 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
720 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
721 pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
722 }
723 }
724 }
725
726 // -----------------------------------------------
727
728 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)) {
729 unsigned char abyMacHdr[24];
730
731 // Only 802.1x packet incoming allowed
732 if (bIsWEP)
733 cbIVOffset = 8;
734 else
735 cbIVOffset = 0;
736 wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
737 skb->data[cbIVOffset + 4 + 24 + 6 + 1];
738
739 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wEtherType = %04x \n", wEtherType);
740 if (wEtherType == ETH_P_PAE) {
741 skb->dev = pDevice->apdev;
742
743 if (bIsWEP == true) {
744 // strip IV header(8)
745 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
746 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
747 }
748 skb->data += (cbIVOffset + 4);
749 skb->tail += (cbIVOffset + 4);
750 skb_put(skb, FrameSize);
751 skb_reset_mac_header(skb);
752
753 skb->pkt_type = PACKET_OTHERHOST;
754 skb->protocol = htons(ETH_P_802_2);
755 memset(skb->cb, 0, sizeof(skb->cb));
756 netif_rx(skb);
757 return true;
758
759 }
760 // check if 802.1x authorized
761 if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
762 return false;
763 }
764
765
766 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
767 if (bIsWEP) {
768 FrameSize -= 8; //MIC
769 }
770 }
771
772 //--------------------------------------------------------------------------------
773 // Soft MIC
774 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
775 if (bIsWEP) {
776 unsigned long *pdwMIC_L;
777 unsigned long *pdwMIC_R;
778 unsigned long dwMIC_Priority;
779 unsigned long dwMICKey0 = 0, dwMICKey1 = 0;
780 unsigned long dwLocalMIC_L = 0;
781 unsigned long dwLocalMIC_R = 0;
782 viawget_wpa_header *wpahdr;
783
784
785 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
786 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
787 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
788 }
789 else {
790 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
791 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
792 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
793 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
794 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
795 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
796 } else {
797 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
798 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
799 }
800 }
801
802 MIC_vInit(dwMICKey0, dwMICKey1);
803 MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
804 dwMIC_Priority = 0;
805 MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
806 // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
807 MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
808 FrameSize - WLAN_HDR_ADDR3_LEN - 8);
809 MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
810 MIC_vUnInit();
811
812 pdwMIC_L = (unsigned long *)(skb->data + 4 + FrameSize);
813 pdwMIC_R = (unsigned long *)(skb->data + 4 + FrameSize + 4);
814 //DBG_PRN_GRP12(("RxL: %lx, RxR: %lx\n", *pdwMIC_L, *pdwMIC_R));
815 //DBG_PRN_GRP12(("LocalL: %lx, LocalR: %lx\n", dwLocalMIC_L, dwLocalMIC_R));
816 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dwMICKey0= %lx,dwMICKey1= %lx \n", dwMICKey0, dwMICKey1);
817
818
819 if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
820 (pDevice->bRxMICFail == true)) {
821 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "MIC comparison is fail!\n");
822 pDevice->bRxMICFail = false;
823 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
824 pDevice->s802_11Counter.TKIPLocalMICFailures++;
825 if (bDeFragRx) {
826 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
827 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
828 pDevice->dev->name);
829 }
830 }
831 //2008-0409-07, <Add> by Einsn Liu
832 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
833 //send event to wpa_supplicant
834 //if (pDevice->bWPADevEnable == true)
835 {
836 union iwreq_data wrqu;
837 struct iw_michaelmicfailure ev;
838 int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
839 memset(&ev, 0, sizeof(ev));
840 ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
841 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
842 (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
843 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
844 ev.flags |= IW_MICFAILURE_PAIRWISE;
845 } else {
846 ev.flags |= IW_MICFAILURE_GROUP;
847 }
848
849 ev.src_addr.sa_family = ARPHRD_ETHER;
850 memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
851 memset(&wrqu, 0, sizeof(wrqu));
852 wrqu.data.length = sizeof(ev);
853 wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
854
855 }
856 #endif
857
858
859 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
860 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
861 if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
862 (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
863 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
864 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
865 wpahdr->type = VIAWGET_PTK_MIC_MSG;
866 } else {
867 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
868 wpahdr->type = VIAWGET_GTK_MIC_MSG;
869 }
870 wpahdr->resp_ie_len = 0;
871 wpahdr->req_ie_len = 0;
872 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
873 pDevice->skb->dev = pDevice->wpadev;
874 skb_reset_mac_header(pDevice->skb);
875 pDevice->skb->pkt_type = PACKET_HOST;
876 pDevice->skb->protocol = htons(ETH_P_802_2);
877 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
878 netif_rx(pDevice->skb);
879 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
880 }
881
882 return false;
883
884 }
885 }
886 } //---end of SOFT MIC-----------------------------------------------------------------------
887
888 // ++++++++++ Reply Counter Check +++++++++++++
889
890 if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
891 (pKey->byCipherSuite == KEY_CTL_CCMP))) {
892 if (bIsWEP) {
893 unsigned short wLocalTSC15_0 = 0;
894 unsigned long dwLocalTSC47_16 = 0;
895 unsigned long long RSC = 0;
896 // endian issues
897 RSC = *((unsigned long long *)&(pKey->KeyRSC));
898 wLocalTSC15_0 = (unsigned short)RSC;
899 dwLocalTSC47_16 = (unsigned long)(RSC>>16);
900
901 RSC = dwRxTSC47_16;
902 RSC <<= 16;
903 RSC += wRxTSC15_0;
904 memcpy(&(pKey->KeyRSC), &RSC, sizeof(QWORD));
905
906 if ((pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
907 (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
908 // check RSC
909 if ((wRxTSC15_0 < wLocalTSC15_0) &&
910 (dwRxTSC47_16 <= dwLocalTSC47_16) &&
911 !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
912 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC is illegal~~!\n ");
913 if (pKey->byCipherSuite == KEY_CTL_TKIP)
914 //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
915 pDevice->s802_11Counter.TKIPReplays++;
916 else
917 //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
918 pDevice->s802_11Counter.CCMPReplays++;
919
920 if (bDeFragRx) {
921 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
922 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
923 pDevice->dev->name);
924 }
925 }
926 return false;
927 }
928 }
929 }
930 } // ----- End of Reply Counter Check --------------------------
931
932
933
934 if ((pKey != NULL) && (bIsWEP)) {
935 // pDevice->s802_11Counter.DecryptSuccessCount.QuadPart++;
936 }
937
938
939 s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
940 FrameSize -= cbHeaderOffset;
941 cbHeaderOffset += 4; // 4 is Rcv buffer header
942
943 // Null data, framesize = 14
944 if (FrameSize < 15)
945 return false;
946
947 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
948 if (s_bAPModeRxData(pDevice,
949 skb,
950 FrameSize,
951 cbHeaderOffset,
952 iSANodeIndex,
953 iDANodeIndex
954 ) == false) {
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 skb->data += cbHeaderOffset;
967 skb->tail += cbHeaderOffset;
968 skb_put(skb, FrameSize);
969 skb->protocol = eth_type_trans(skb, skb->dev);
970
971
972 //drop frame not met IEEE 802.3
973 /*
974 if (pDevice->flags & DEVICE_FLAGS_VAL_PKT_LEN) {
975 if ((skb->protocol==htons(ETH_P_802_3)) &&
976 (skb->len!=htons(skb->mac.ethernet->h_proto))) {
977 pStats->rx_length_errors++;
978 pStats->rx_dropped++;
979 if (bDeFragRx) {
980 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
981 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
982 pDevice->dev->name);
983 }
984 }
985 return false;
986 }
987 }
988 */
989
990 skb->ip_summed = CHECKSUM_NONE;
991 pStats->rx_bytes += skb->len;
992 pStats->rx_packets++;
993 netif_rx(skb);
994
995 if (bDeFragRx) {
996 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
997 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not alloc more frag bufs\n",
998 pDevice->dev->name);
999 }
1000 return false;
1001 }
1002
1003 return true;
1004 }
1005
1006
1007 static bool s_bAPModeRxCtl(
1008 PSDevice pDevice,
1009 unsigned char *pbyFrame,
1010 int iSANodeIndex
1011 )
1012 {
1013 PS802_11Header p802_11Header;
1014 CMD_STATUS Status;
1015 PSMgmtObject pMgmt = pDevice->pMgmt;
1016
1017
1018 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1019
1020 p802_11Header = (PS802_11Header)(pbyFrame);
1021 if (!IS_TYPE_MGMT(pbyFrame)) {
1022
1023 // Data & PS-Poll packet
1024 // check frame class
1025 if (iSANodeIndex > 0) {
1026 // frame class 3 fliter & checking
1027 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1028 // send deauth notification
1029 // reason = (6) class 2 received from nonauth sta
1030 vMgrDeAuthenBeginSta(pDevice,
1031 pMgmt,
1032 (unsigned char *)(p802_11Header->abyAddr2),
1033 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1034 &Status
1035 );
1036 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1037 return true;
1038 }
1039 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1040 // send deassoc notification
1041 // reason = (7) class 3 received from nonassoc sta
1042 vMgrDisassocBeginSta(pDevice,
1043 pMgmt,
1044 (unsigned char *)(p802_11Header->abyAddr2),
1045 (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1046 &Status
1047 );
1048 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1049 return true;
1050 }
1051
1052 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1053 // delcare received ps-poll event
1054 if (IS_CTL_PSPOLL(pbyFrame)) {
1055 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1056 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1057 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1058 }
1059 else {
1060 // check Data PS state
1061 // if PW bit off, send out all PS bufferring packets.
1062 if (!IS_FC_POWERMGT(pbyFrame)) {
1063 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1064 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1065 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1066 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1067 }
1068 }
1069 }
1070 else {
1071 if (IS_FC_POWERMGT(pbyFrame)) {
1072 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
1073 // Once if STA in PS state, enable multicast bufferring
1074 pMgmt->sNodeDBTable[0].bPSEnable = true;
1075 }
1076 else {
1077 // clear all pending PS frame.
1078 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1079 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1080 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1081 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1082 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1083
1084 }
1085 }
1086 }
1087 }
1088 else {
1089 vMgrDeAuthenBeginSta(pDevice,
1090 pMgmt,
1091 (unsigned char *)(p802_11Header->abyAddr2),
1092 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1093 &Status
1094 );
1095 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1096 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
1097 p802_11Header->abyAddr3);
1098 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
1099 p802_11Header->abyAddr2);
1100 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
1101 p802_11Header->abyAddr1);
1102 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl);
1103 VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
1104 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode);
1105 return true;
1106 }
1107 }
1108 }
1109 return false;
1110
1111 }
1112
1113 static bool s_bHandleRxEncryption(
1114 PSDevice pDevice,
1115 unsigned char *pbyFrame,
1116 unsigned int FrameSize,
1117 unsigned char *pbyRsr,
1118 unsigned char *pbyNewRsr,
1119 PSKeyItem *pKeyOut,
1120 bool *pbExtIV,
1121 unsigned short *pwRxTSC15_0,
1122 unsigned long *pdwRxTSC47_16
1123 )
1124 {
1125 unsigned int PayloadLen = FrameSize;
1126 unsigned char *pbyIV;
1127 unsigned char byKeyIdx;
1128 PSKeyItem pKey = NULL;
1129 unsigned char byDecMode = KEY_CTL_WEP;
1130 PSMgmtObject pMgmt = pDevice->pMgmt;
1131
1132
1133 *pwRxTSC15_0 = 0;
1134 *pdwRxTSC47_16 = 0;
1135
1136 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1137 if (WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1138 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame)) {
1139 pbyIV += 6; // 6 is 802.11 address4
1140 PayloadLen -= 6;
1141 }
1142 byKeyIdx = (*(pbyIV+3) & 0xc0);
1143 byKeyIdx >>= 6;
1144 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "\nKeyIdx: %d\n", byKeyIdx);
1145
1146 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1147 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1148 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1149 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1150 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1151 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1152 (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1153 // unicast pkt use pairwise key
1154 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "unicast pkt\n");
1155 if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1156 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1157 byDecMode = KEY_CTL_TKIP;
1158 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1159 byDecMode = KEY_CTL_CCMP;
1160 }
1161 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "unicast pkt: %d, %p\n", byDecMode, pKey);
1162 } else {
1163 // use group key
1164 KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1165 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1166 byDecMode = KEY_CTL_TKIP;
1167 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1168 byDecMode = KEY_CTL_CCMP;
1169 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1170 }
1171 }
1172 // our WEP only support Default Key
1173 if (pKey == NULL) {
1174 // use default group key
1175 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1176 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1177 byDecMode = KEY_CTL_TKIP;
1178 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1179 byDecMode = KEY_CTL_CCMP;
1180 }
1181 *pKeyOut = pKey;
1182
1183 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1184
1185 if (pKey == NULL) {
1186 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pKey == NULL\n");
1187 if (byDecMode == KEY_CTL_WEP) {
1188 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1189 } else if (pDevice->bLinkPass == true) {
1190 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1191 }
1192 return false;
1193 }
1194 if (byDecMode != pKey->byCipherSuite) {
1195 if (byDecMode == KEY_CTL_WEP) {
1196 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1197 } else if (pDevice->bLinkPass == true) {
1198 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1199 }
1200 *pKeyOut = NULL;
1201 return false;
1202 }
1203 if (byDecMode == KEY_CTL_WEP) {
1204 // handle WEP
1205 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1206 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1207 // Software WEP
1208 // 1. 3253A
1209 // 2. WEP 256
1210
1211 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1212 memcpy(pDevice->abyPRNG, pbyIV, 3);
1213 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1214 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1215 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1216
1217 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1218 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1219 }
1220 }
1221 } else if ((byDecMode == KEY_CTL_TKIP) ||
1222 (byDecMode == KEY_CTL_CCMP)) {
1223 // TKIP/AES
1224
1225 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1226 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1227 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ExtIV: %lx\n", *pdwRxTSC47_16);
1228 if (byDecMode == KEY_CTL_TKIP) {
1229 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV + 2), *pbyIV));
1230 } else {
1231 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1232 }
1233 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC0_15: %x\n", *pwRxTSC15_0);
1234
1235 if ((byDecMode == KEY_CTL_TKIP) &&
1236 (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1237 // Software TKIP
1238 // 1. 3253 A
1239 PS802_11Header pMACHeader = (PS802_11Header)(pbyFrame);
1240 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1241 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1242 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1243 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1244 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1245 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV OK!\n");
1246 } else {
1247 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV FAIL!!!\n");
1248 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PayloadLen = %d\n", PayloadLen);
1249 }
1250 }
1251 }// end of TKIP/AES
1252
1253 if ((*(pbyIV+3) & 0x20) != 0)
1254 *pbExtIV = true;
1255 return true;
1256 }
1257
1258
1259 static bool s_bHostWepRxEncryption(
1260 PSDevice pDevice,
1261 unsigned char *pbyFrame,
1262 unsigned int FrameSize,
1263 unsigned char *pbyRsr,
1264 bool bOnFly,
1265 PSKeyItem pKey,
1266 unsigned char *pbyNewRsr,
1267 bool *pbExtIV,
1268 unsigned short *pwRxTSC15_0,
1269 unsigned long *pdwRxTSC47_16
1270 )
1271 {
1272 unsigned int PayloadLen = FrameSize;
1273 unsigned char *pbyIV;
1274 unsigned char byKeyIdx;
1275 unsigned char byDecMode = KEY_CTL_WEP;
1276 PS802_11Header pMACHeader;
1277
1278
1279
1280 *pwRxTSC15_0 = 0;
1281 *pdwRxTSC47_16 = 0;
1282
1283 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1284 if (WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1285 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame)) {
1286 pbyIV += 6; // 6 is 802.11 address4
1287 PayloadLen -= 6;
1288 }
1289 byKeyIdx = (*(pbyIV+3) & 0xc0);
1290 byKeyIdx >>= 6;
1291 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "\nKeyIdx: %d\n", byKeyIdx);
1292
1293
1294 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1295 byDecMode = KEY_CTL_TKIP;
1296 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1297 byDecMode = KEY_CTL_CCMP;
1298
1299 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1300
1301 if (byDecMode != pKey->byCipherSuite) {
1302 if (byDecMode == KEY_CTL_WEP) {
1303 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1304 } else if (pDevice->bLinkPass == true) {
1305 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1306 }
1307 return false;
1308 }
1309
1310 if (byDecMode == KEY_CTL_WEP) {
1311 // handle WEP
1312 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "byDecMode == KEY_CTL_WEP \n");
1313 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1314 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1315 (bOnFly == false)) {
1316 // Software WEP
1317 // 1. 3253A
1318 // 2. WEP 256
1319 // 3. NotOnFly
1320
1321 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1322 memcpy(pDevice->abyPRNG, pbyIV, 3);
1323 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1324 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1325 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1326
1327 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1328 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1329 }
1330 }
1331 } else if ((byDecMode == KEY_CTL_TKIP) ||
1332 (byDecMode == KEY_CTL_CCMP)) {
1333 // TKIP/AES
1334
1335 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1336 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1337 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ExtIV: %lx\n", *pdwRxTSC47_16);
1338
1339 if (byDecMode == KEY_CTL_TKIP) {
1340 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1341 } else {
1342 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1343 }
1344 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "TSC0_15: %x\n", *pwRxTSC15_0);
1345
1346 if (byDecMode == KEY_CTL_TKIP) {
1347
1348 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1349 // Software TKIP
1350 // 1. 3253 A
1351 // 2. NotOnFly
1352 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "soft KEY_CTL_TKIP \n");
1353 pMACHeader = (PS802_11Header)(pbyFrame);
1354 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1355 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1356 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1357 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1358 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1359 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV OK!\n");
1360 } else {
1361 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ICV FAIL!!!\n");
1362 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PayloadLen = %d\n", PayloadLen);
1363 }
1364 }
1365 }
1366
1367 if (byDecMode == KEY_CTL_CCMP) {
1368 if (bOnFly == false) {
1369 // Software CCMP
1370 // NotOnFly
1371 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "soft KEY_CTL_CCMP\n");
1372 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1373 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1374 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "CCMP MIC compare OK!\n");
1375 } else {
1376 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "CCMP MIC fail!\n");
1377 }
1378 }
1379 }
1380
1381 }// end of TKIP/AES
1382
1383 if ((*(pbyIV+3) & 0x20) != 0)
1384 *pbExtIV = true;
1385 return true;
1386 }
1387
1388
1389
1390 static bool s_bAPModeRxData(
1391 PSDevice pDevice,
1392 struct sk_buff *skb,
1393 unsigned int FrameSize,
1394 unsigned int cbHeaderOffset,
1395 int iSANodeIndex,
1396 int iDANodeIndex
1397 )
1398 {
1399 PSMgmtObject pMgmt = pDevice->pMgmt;
1400 bool bRelayAndForward = false;
1401 bool bRelayOnly = false;
1402 unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1403 unsigned short wAID;
1404
1405
1406 struct sk_buff *skbcpy = NULL;
1407
1408 if (FrameSize > CB_MAX_BUF_SIZE)
1409 return false;
1410 // check DA
1411 if (is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1412 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1413
1414 skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1415
1416 // if any node in PS mode, buffer packet until DTIM.
1417 if (skbcpy == NULL) {
1418 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1419 }
1420 else {
1421 skbcpy->dev = pDevice->dev;
1422 skbcpy->len = FrameSize;
1423 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1424 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1425
1426 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1427 // set tx map
1428 pMgmt->abyPSTxMap[0] |= byMask[0];
1429 }
1430 }
1431 else {
1432 bRelayAndForward = true;
1433 }
1434 }
1435 else {
1436 // check if relay
1437 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1438 if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1439 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1440 // queue this skb until next PS tx, and then release.
1441
1442 skb->data += cbHeaderOffset;
1443 skb->tail += cbHeaderOffset;
1444 skb_put(skb, FrameSize);
1445 skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1446 pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1447 wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1448 pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
1449 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1450 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1451 return true;
1452 }
1453 else {
1454 bRelayOnly = true;
1455 }
1456 }
1457 }
1458 }
1459
1460 if (bRelayOnly || bRelayAndForward) {
1461 // relay this packet right now
1462 if (bRelayAndForward)
1463 iDANodeIndex = 0;
1464
1465 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1466 ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1467 }
1468
1469 if (bRelayOnly)
1470 return false;
1471 }
1472 // none associate, don't forward
1473 if (pDevice->uAssocCount == 0)
1474 return false;
1475
1476 return true;
1477 }
1478
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