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initial commit with v3.6.7
[linux-3.6.7-moxart.git] / drivers / staging / vt6655 / dpc.c
blobe8a71ba4b92c10a2728c169ff3c8c66346f25d75
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 //printk("Enter MngWorkItem,Queue packet num is %d\n",pDevice->rxManeQueue.packet_num);
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 #ifdef PLICE_DEBUG
324 //printk("device_receive_frame:pCurrRD is %x,pRDInfo is %x\n",pCurrRD,pCurrRD->pRDInfo);
325 #endif
326 struct net_device_stats* pStats=&pDevice->stats;
327 struct sk_buff* skb;
328 PSMgmtObject pMgmt = pDevice->pMgmt;
329 PSRxMgmtPacket pRxPacket = &(pDevice->pMgmt->sRxPacket);
330 PS802_11Header p802_11Header;
331 unsigned char *pbyRsr;
332 unsigned char *pbyNewRsr;
333 unsigned char *pbyRSSI;
334 PQWORD pqwTSFTime;
335 unsigned short *pwFrameSize;
336 unsigned char *pbyFrame;
337 bool bDeFragRx = false;
338 bool bIsWEP = false;
339 unsigned int cbHeaderOffset;
340 unsigned int FrameSize;
341 unsigned short wEtherType = 0;
342 int iSANodeIndex = -1;
343 int iDANodeIndex = -1;
344 unsigned int ii;
345 unsigned int cbIVOffset;
346 bool bExtIV = false;
347 unsigned char *pbyRxSts;
348 unsigned char *pbyRxRate;
349 unsigned char *pbySQ;
350 unsigned int cbHeaderSize;
351 PSKeyItem pKey = NULL;
352 unsigned short wRxTSC15_0 = 0;
353 unsigned long dwRxTSC47_16 = 0;
354 SKeyItem STempKey;
355 // 802.11h RPI
356 unsigned long dwDuration = 0;
357 long ldBm = 0;
358 long ldBmThreshold = 0;
359 PS802_11Header pMACHeader;
360 bool bRxeapol_key = false;
361
362 // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- device_receive_frame---\n");
363
364 skb = pRDInfo->skb;
365
366
367 //PLICE_DEBUG->
368 #if 1
369 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
370 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
371 #endif
372 //PLICE_DEBUG<-
373 pwFrameSize = (unsigned short *)(skb->data + 2);
374 FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
375
376 // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
377 // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
378 if ((FrameSize > 2364)||(FrameSize <= 32)) {
379 // Frame Size error drop this packet.
380 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 1 \n");
381 return false;
382 }
383
384 pbyRxSts = (unsigned char *) (skb->data);
385 pbyRxRate = (unsigned char *) (skb->data + 1);
386 pbyRsr = (unsigned char *) (skb->data + FrameSize - 1);
387 pbyRSSI = (unsigned char *) (skb->data + FrameSize - 2);
388 pbyNewRsr = (unsigned char *) (skb->data + FrameSize - 3);
389 pbySQ = (unsigned char *) (skb->data + FrameSize - 4);
390 pqwTSFTime = (PQWORD) (skb->data + FrameSize - 12);
391 pbyFrame = (unsigned char *)(skb->data + 4);
392
393 // get packet size
394 FrameSize = cpu_to_le16(*pwFrameSize);
395
396 if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
397 // Min: 14 bytes ACK
398 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 2 \n");
399 return false;
400 }
401 //PLICE_DEBUG->
402 #if 1
403 // update receive statistic counter
404 STAvUpdateRDStatCounter(&pDevice->scStatistic,
405 *pbyRsr,
406 *pbyNewRsr,
407 *pbyRxRate,
408 pbyFrame,
409 FrameSize);
410
411 #endif
412
413 pMACHeader=(PS802_11Header)((unsigned char *) (skb->data)+8);
414 //PLICE_DEBUG<-
415 if (pDevice->bMeasureInProgress == true) {
416 if ((*pbyRsr & RSR_CRCOK) != 0) {
417 pDevice->byBasicMap |= 0x01;
418 }
419 dwDuration = (FrameSize << 4);
420 dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
421 if (*pbyRxRate <= RATE_11M) {
422 if (*pbyRxSts & 0x01) {
423 // long preamble
424 dwDuration += 192;
425 } else {
426 // short preamble
427 dwDuration += 96;
428 }
429 } else {
430 dwDuration += 16;
431 }
432 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
433 ldBmThreshold = -57;
434 for (ii = 7; ii > 0;) {
435 if (ldBm > ldBmThreshold) {
436 break;
437 }
438 ldBmThreshold -= 5;
439 ii--;
440 }
441 pDevice->dwRPIs[ii] += dwDuration;
442 return false;
443 }
444
445 if (!is_multicast_ether_addr(pbyFrame)) {
446 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header) (skb->data + 4))) {
447 pDevice->s802_11Counter.FrameDuplicateCount++;
448 return false;
449 }
450 }
451
452
453 // Use for TKIP MIC
454 s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
455
456 // filter packet send from myself
457 if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
458 return false;
459
460 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
461 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
462 p802_11Header = (PS802_11Header) (pbyFrame);
463 // get SA NodeIndex
464 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
465 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
466 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
467 }
468 }
469 }
470
471 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
472 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
473 return false;
474 }
475 }
476
477
478 if (IS_FC_WEP(pbyFrame)) {
479 bool bRxDecryOK = false;
480
481 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
482 bIsWEP = true;
483 if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
484 pKey = &STempKey;
485 pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
486 pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
487 pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
488 pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
489 pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
490 memcpy(pKey->abyKey,
491 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
492 pKey->uKeyLength
493 );
494
495 bRxDecryOK = s_bHostWepRxEncryption(pDevice,
496 pbyFrame,
497 FrameSize,
498 pbyRsr,
499 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
500 pKey,
501 pbyNewRsr,
502 &bExtIV,
503 &wRxTSC15_0,
504 &dwRxTSC47_16);
505 } else {
506 bRxDecryOK = s_bHandleRxEncryption(pDevice,
507 pbyFrame,
508 FrameSize,
509 pbyRsr,
510 pbyNewRsr,
511 &pKey,
512 &bExtIV,
513 &wRxTSC15_0,
514 &dwRxTSC47_16);
515 }
516
517 if (bRxDecryOK) {
518 if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
519 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
520 if ( (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
521 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
522 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
523 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
524 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
525
526 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
527 pDevice->s802_11Counter.TKIPICVErrors++;
528 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
529 pDevice->s802_11Counter.CCMPDecryptErrors++;
530 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
531 // pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
532 }
533 }
534 return false;
535 }
536 } else {
537 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
538 return false;
539 }
540 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
541 FrameSize -= 8; // Message Integrity Code
542 else
543 FrameSize -= 4; // 4 is ICV
544 }
545
546
547 //
548 // RX OK
549 //
550 //remove the CRC length
551 FrameSize -= ETH_FCS_LEN;
552
553 if (( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
554 (IS_FRAGMENT_PKT((skb->data+4)))
555 ) {
556 // defragment
557 bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header) (skb->data+4), FrameSize, bIsWEP, bExtIV);
558 pDevice->s802_11Counter.ReceivedFragmentCount++;
559 if (bDeFragRx) {
560 // defrag complete
561 skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
562 FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
563
564 }
565 else {
566 return false;
567 }
568 }
569
570
571 // Management & Control frame Handle
572 if ((IS_TYPE_DATA((skb->data+4))) == false) {
573 // Handle Control & Manage Frame
574
575 if (IS_TYPE_MGMT((skb->data+4))) {
576 unsigned char *pbyData1;
577 unsigned char *pbyData2;
578
579 pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
580 pRxPacket->cbMPDULen = FrameSize;
581 pRxPacket->uRSSI = *pbyRSSI;
582 pRxPacket->bySQ = *pbySQ;
583 HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
584 LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
585 if (bIsWEP) {
586 // strip IV
587 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
588 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
589 for (ii = 0; ii < (FrameSize - 4); ii++) {
590 *pbyData1 = *pbyData2;
591 pbyData1++;
592 pbyData2++;
593 }
594 }
595 pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
596 pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
597 //PLICE_DEBUG->
598 //EnQueue(pDevice,pRxPacket);
599
600 #ifdef THREAD
601 EnQueue(pDevice,pRxPacket);
602
603 //printk("enque time is %x\n",jiffies);
604 //up(&pDevice->mlme_semaphore);
605 //Enque (pDevice->FirstRecvMngList,pDevice->LastRecvMngList,pMgmt);
606 #else
607
608 #ifdef TASK_LET
609 EnQueue(pDevice,pRxPacket);
610 tasklet_schedule(&pDevice->RxMngWorkItem);
611 #else
612 //printk("RxMan\n");
613 vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
614 //tasklet_schedule(&pDevice->RxMngWorkItem);
615 #endif
616
617 #endif
618 //PLICE_DEBUG<-
619 //vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
620 // hostap Deamon handle 802.11 management
621 if (pDevice->bEnableHostapd) {
622 skb->dev = pDevice->apdev;
623 skb->data += 4;
624 skb->tail += 4;
625 skb_put(skb, FrameSize);
626 skb_reset_mac_header(skb);
627 skb->pkt_type = PACKET_OTHERHOST;
628 skb->protocol = htons(ETH_P_802_2);
629 memset(skb->cb, 0, sizeof(skb->cb));
630 netif_rx(skb);
631 return true;
632 }
633 }
634 else {
635 // Control Frame
636 };
637 return false;
638 }
639 else {
640 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
641 //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
642 if ( !(*pbyRsr & RSR_BSSIDOK)) {
643 if (bDeFragRx) {
644 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
645 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
646 pDevice->dev->name);
647 }
648 }
649 return false;
650 }
651 }
652 else {
653 // discard DATA packet while not associate || BSSID error
654 if ((pDevice->bLinkPass == false) ||
655 !(*pbyRsr & RSR_BSSIDOK)) {
656 if (bDeFragRx) {
657 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
658 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
659 pDevice->dev->name);
660 }
661 }
662 return false;
663 }
664 //mike add:station mode check eapol-key challenge--->
665 {
666 unsigned char Protocol_Version; //802.1x Authentication
667 unsigned char Packet_Type; //802.1x Authentication
668 if (bIsWEP)
669 cbIVOffset = 8;
670 else
671 cbIVOffset = 0;
672 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
673 skb->data[cbIVOffset + 8 + 24 + 6 + 1];
674 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
675 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
676 if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
677 if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
678 (Packet_Type==3)) { //802.1x OR eapol-key challenge frame receive
679 bRxeapol_key = true;
680 }
681 }
682 }
683 //mike add:station mode check eapol-key challenge<---
684 }
685 }
686
687
688 // Data frame Handle
689
690
691 if (pDevice->bEnablePSMode) {
692 if (IS_FC_MOREDATA((skb->data+4))) {
693 if (*pbyRsr & RSR_ADDROK) {
694 //PSbSendPSPOLL((PSDevice)pDevice);
695 }
696 }
697 else {
698 if (pDevice->pMgmt->bInTIMWake == true) {
699 pDevice->pMgmt->bInTIMWake = false;
700 }
701 }
702 }
703
704 // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
705 if (pDevice->bDiversityEnable && (FrameSize>50) &&
706 (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
707 (pDevice->bLinkPass == true)) {
708 //printk("device_receive_frame: RxRate is %d\n",*pbyRxRate);
709 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
710 }
711
712
713 if (pDevice->byLocalID != REV_ID_VT3253_B1) {
714 pDevice->uCurrRSSI = *pbyRSSI;
715 }
716 pDevice->byCurrSQ = *pbySQ;
717
718 if ((*pbyRSSI != 0) &&
719 (pMgmt->pCurrBSS!=NULL)) {
720 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
721 // Moniter if RSSI is too strong.
722 pMgmt->pCurrBSS->byRSSIStatCnt++;
723 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
724 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
725 for(ii=0;ii<RSSI_STAT_COUNT;ii++) {
726 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
727 pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
728 }
729 }
730 }
731
732 // -----------------------------------------------
733
734 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
735 unsigned char abyMacHdr[24];
736
737 // Only 802.1x packet incoming allowed
738 if (bIsWEP)
739 cbIVOffset = 8;
740 else
741 cbIVOffset = 0;
742 wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
743 skb->data[cbIVOffset + 4 + 24 + 6 + 1];
744
745 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
746 if (wEtherType == ETH_P_PAE) {
747 skb->dev = pDevice->apdev;
748
749 if (bIsWEP == true) {
750 // strip IV header(8)
751 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
752 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
753 }
754 skb->data += (cbIVOffset + 4);
755 skb->tail += (cbIVOffset + 4);
756 skb_put(skb, FrameSize);
757 skb_reset_mac_header(skb);
758
759 skb->pkt_type = PACKET_OTHERHOST;
760 skb->protocol = htons(ETH_P_802_2);
761 memset(skb->cb, 0, sizeof(skb->cb));
762 netif_rx(skb);
763 return true;
764
765 }
766 // check if 802.1x authorized
767 if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
768 return false;
769 }
770
771
772 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
773 if (bIsWEP) {
774 FrameSize -= 8; //MIC
775 }
776 }
777
778 //--------------------------------------------------------------------------------
779 // Soft MIC
780 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
781 if (bIsWEP) {
782 unsigned long *pdwMIC_L;
783 unsigned long *pdwMIC_R;
784 unsigned long dwMIC_Priority;
785 unsigned long dwMICKey0 = 0, dwMICKey1 = 0;
786 unsigned long dwLocalMIC_L = 0;
787 unsigned long dwLocalMIC_R = 0;
788 viawget_wpa_header *wpahdr;
789
790
791 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
792 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
793 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
794 }
795 else {
796 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
797 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
798 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
799 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
800 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
801 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
802 } else {
803 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
804 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
805 }
806 }
807
808 MIC_vInit(dwMICKey0, dwMICKey1);
809 MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
810 dwMIC_Priority = 0;
811 MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
812 // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
813 MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
814 FrameSize - WLAN_HDR_ADDR3_LEN - 8);
815 MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
816 MIC_vUnInit();
817
818 pdwMIC_L = (unsigned long *)(skb->data + 4 + FrameSize);
819 pdwMIC_R = (unsigned long *)(skb->data + 4 + FrameSize + 4);
820 //DBG_PRN_GRP12(("RxL: %lx, RxR: %lx\n", *pdwMIC_L, *pdwMIC_R));
821 //DBG_PRN_GRP12(("LocalL: %lx, LocalR: %lx\n", dwLocalMIC_L, dwLocalMIC_R));
822 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwMICKey0= %lx,dwMICKey1= %lx \n", dwMICKey0, dwMICKey1);
823
824
825 if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
826 (pDevice->bRxMICFail == true)) {
827 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
828 pDevice->bRxMICFail = false;
829 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
830 pDevice->s802_11Counter.TKIPLocalMICFailures++;
831 if (bDeFragRx) {
832 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
833 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
834 pDevice->dev->name);
835 }
836 }
837 //2008-0409-07, <Add> by Einsn Liu
838 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
839 //send event to wpa_supplicant
840 //if(pDevice->bWPADevEnable == true)
841 {
842 union iwreq_data wrqu;
843 struct iw_michaelmicfailure ev;
844 int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
845 memset(&ev, 0, sizeof(ev));
846 ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
847 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
848 (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
849 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
850 ev.flags |= IW_MICFAILURE_PAIRWISE;
851 } else {
852 ev.flags |= IW_MICFAILURE_GROUP;
853 }
854
855 ev.src_addr.sa_family = ARPHRD_ETHER;
856 memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
857 memset(&wrqu, 0, sizeof(wrqu));
858 wrqu.data.length = sizeof(ev);
859 wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
860
861 }
862 #endif
863
864
865 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
866 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
867 if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
868 (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
869 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
870 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
871 wpahdr->type = VIAWGET_PTK_MIC_MSG;
872 } else {
873 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
874 wpahdr->type = VIAWGET_GTK_MIC_MSG;
875 }
876 wpahdr->resp_ie_len = 0;
877 wpahdr->req_ie_len = 0;
878 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
879 pDevice->skb->dev = pDevice->wpadev;
880 skb_reset_mac_header(pDevice->skb);
881 pDevice->skb->pkt_type = PACKET_HOST;
882 pDevice->skb->protocol = htons(ETH_P_802_2);
883 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
884 netif_rx(pDevice->skb);
885 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
886 }
887
888 return false;
889
890 }
891 }
892 } //---end of SOFT MIC-----------------------------------------------------------------------
893
894 // ++++++++++ Reply Counter Check +++++++++++++
895
896 if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
897 (pKey->byCipherSuite == KEY_CTL_CCMP))) {
898 if (bIsWEP) {
899 unsigned short wLocalTSC15_0 = 0;
900 unsigned long dwLocalTSC47_16 = 0;
901 unsigned long long RSC = 0;
902 // endian issues
903 RSC = *((unsigned long long *) &(pKey->KeyRSC));
904 wLocalTSC15_0 = (unsigned short) RSC;
905 dwLocalTSC47_16 = (unsigned long) (RSC>>16);
906
907 RSC = dwRxTSC47_16;
908 RSC <<= 16;
909 RSC += wRxTSC15_0;
910 memcpy(&(pKey->KeyRSC), &RSC, sizeof(QWORD));
911
912 if ( (pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
913 (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
914 // check RSC
915 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
916 (dwRxTSC47_16 <= dwLocalTSC47_16) &&
917 !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
918 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
919 if (pKey->byCipherSuite == KEY_CTL_TKIP)
920 //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
921 pDevice->s802_11Counter.TKIPReplays++;
922 else
923 //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
924 pDevice->s802_11Counter.CCMPReplays++;
925
926 if (bDeFragRx) {
927 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
928 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
929 pDevice->dev->name);
930 }
931 }
932 return false;
933 }
934 }
935 }
936 } // ----- End of Reply Counter Check --------------------------
937
938
939
940 if ((pKey != NULL) && (bIsWEP)) {
941 // pDevice->s802_11Counter.DecryptSuccessCount.QuadPart++;
942 }
943
944
945 s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
946 FrameSize -= cbHeaderOffset;
947 cbHeaderOffset += 4; // 4 is Rcv buffer header
948
949 // Null data, framesize = 14
950 if (FrameSize < 15)
951 return false;
952
953 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
954 if (s_bAPModeRxData(pDevice,
955 skb,
956 FrameSize,
957 cbHeaderOffset,
958 iSANodeIndex,
959 iDANodeIndex
960 ) == false) {
961
962 if (bDeFragRx) {
963 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
964 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
965 pDevice->dev->name);
966 }
967 }
968 return false;
969 }
970
971 // if(pDevice->bRxMICFail == false) {
972 // for (ii =0; ii < 100; ii++)
973 // printk(" %02x", *(skb->data + ii));
974 // printk("\n");
975 // }
976
977 }
978
979 skb->data += cbHeaderOffset;
980 skb->tail += cbHeaderOffset;
981 skb_put(skb, FrameSize);
982 skb->protocol=eth_type_trans(skb, skb->dev);
983
984
985 //drop frame not met IEEE 802.3
986 /*
987 if (pDevice->flags & DEVICE_FLAGS_VAL_PKT_LEN) {
988 if ((skb->protocol==htons(ETH_P_802_3)) &&
989 (skb->len!=htons(skb->mac.ethernet->h_proto))) {
990 pStats->rx_length_errors++;
991 pStats->rx_dropped++;
992 if (bDeFragRx) {
993 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
994 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
995 pDevice->dev->name);
996 }
997 }
998 return false;
999 }
1000 }
1001 */
1002
1003 skb->ip_summed=CHECKSUM_NONE;
1004 pStats->rx_bytes +=skb->len;
1005 pStats->rx_packets++;
1006 netif_rx(skb);
1007
1008 if (bDeFragRx) {
1009 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
1010 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
1011 pDevice->dev->name);
1012 }
1013 return false;
1014 }
1015
1016 return true;
1017 }
1018
1019
1020 static bool s_bAPModeRxCtl (
1021 PSDevice pDevice,
1022 unsigned char *pbyFrame,
1023 int iSANodeIndex
1024 )
1025 {
1026 PS802_11Header p802_11Header;
1027 CMD_STATUS Status;
1028 PSMgmtObject pMgmt = pDevice->pMgmt;
1029
1030
1031 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1032
1033 p802_11Header = (PS802_11Header) (pbyFrame);
1034 if (!IS_TYPE_MGMT(pbyFrame)) {
1035
1036 // Data & PS-Poll packet
1037 // check frame class
1038 if (iSANodeIndex > 0) {
1039 // frame class 3 fliter & checking
1040 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1041 // send deauth notification
1042 // reason = (6) class 2 received from nonauth sta
1043 vMgrDeAuthenBeginSta(pDevice,
1044 pMgmt,
1045 (unsigned char *)(p802_11Header->abyAddr2),
1046 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1047 &Status
1048 );
1049 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1050 return true;
1051 }
1052 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1053 // send deassoc notification
1054 // reason = (7) class 3 received from nonassoc sta
1055 vMgrDisassocBeginSta(pDevice,
1056 pMgmt,
1057 (unsigned char *)(p802_11Header->abyAddr2),
1058 (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1059 &Status
1060 );
1061 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1062 return true;
1063 }
1064
1065 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1066 // delcare received ps-poll event
1067 if (IS_CTL_PSPOLL(pbyFrame)) {
1068 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1069 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1070 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1071 }
1072 else {
1073 // check Data PS state
1074 // if PW bit off, send out all PS bufferring packets.
1075 if (!IS_FC_POWERMGT(pbyFrame)) {
1076 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1077 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1078 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1079 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1080 }
1081 }
1082 }
1083 else {
1084 if (IS_FC_POWERMGT(pbyFrame)) {
1085 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
1086 // Once if STA in PS state, enable multicast bufferring
1087 pMgmt->sNodeDBTable[0].bPSEnable = true;
1088 }
1089 else {
1090 // clear all pending PS frame.
1091 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1092 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1093 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1094 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1095 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1096
1097 }
1098 }
1099 }
1100 }
1101 else {
1102 vMgrDeAuthenBeginSta(pDevice,
1103 pMgmt,
1104 (unsigned char *)(p802_11Header->abyAddr2),
1105 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1106 &Status
1107 );
1108 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1109 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
1110 p802_11Header->abyAddr3);
1111 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
1112 p802_11Header->abyAddr2);
1113 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
1114 p802_11Header->abyAddr1);
1115 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl );
1116 VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
1117 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode );
1118 return true;
1119 }
1120 }
1121 }
1122 return false;
1123
1124 }
1125
1126 static bool s_bHandleRxEncryption (
1127 PSDevice pDevice,
1128 unsigned char *pbyFrame,
1129 unsigned int FrameSize,
1130 unsigned char *pbyRsr,
1131 unsigned char *pbyNewRsr,
1132 PSKeyItem *pKeyOut,
1133 bool *pbExtIV,
1134 unsigned short *pwRxTSC15_0,
1135 unsigned long *pdwRxTSC47_16
1136 )
1137 {
1138 unsigned int PayloadLen = FrameSize;
1139 unsigned char *pbyIV;
1140 unsigned char byKeyIdx;
1141 PSKeyItem pKey = NULL;
1142 unsigned char byDecMode = KEY_CTL_WEP;
1143 PSMgmtObject pMgmt = pDevice->pMgmt;
1144
1145
1146 *pwRxTSC15_0 = 0;
1147 *pdwRxTSC47_16 = 0;
1148
1149 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1150 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1151 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1152 pbyIV += 6; // 6 is 802.11 address4
1153 PayloadLen -= 6;
1154 }
1155 byKeyIdx = (*(pbyIV+3) & 0xc0);
1156 byKeyIdx >>= 6;
1157 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1158
1159 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1160 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1161 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1162 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1163 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1164 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1165 (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1166 // unicast pkt use pairwise key
1167 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1168 if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1169 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1170 byDecMode = KEY_CTL_TKIP;
1171 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1172 byDecMode = KEY_CTL_CCMP;
1173 }
1174 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1175 } else {
1176 // use group key
1177 KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1178 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1179 byDecMode = KEY_CTL_TKIP;
1180 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1181 byDecMode = KEY_CTL_CCMP;
1182 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1183 }
1184 }
1185 // our WEP only support Default Key
1186 if (pKey == NULL) {
1187 // use default group key
1188 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1189 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1190 byDecMode = KEY_CTL_TKIP;
1191 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1192 byDecMode = KEY_CTL_CCMP;
1193 }
1194 *pKeyOut = pKey;
1195
1196 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1197
1198 if (pKey == NULL) {
1199 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1200 if (byDecMode == KEY_CTL_WEP) {
1201 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1202 } else if (pDevice->bLinkPass == true) {
1203 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1204 }
1205 return false;
1206 }
1207 if (byDecMode != pKey->byCipherSuite) {
1208 if (byDecMode == KEY_CTL_WEP) {
1209 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1210 } else if (pDevice->bLinkPass == true) {
1211 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1212 }
1213 *pKeyOut = NULL;
1214 return false;
1215 }
1216 if (byDecMode == KEY_CTL_WEP) {
1217 // handle WEP
1218 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1219 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1220 // Software WEP
1221 // 1. 3253A
1222 // 2. WEP 256
1223
1224 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1225 memcpy(pDevice->abyPRNG, pbyIV, 3);
1226 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1227 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1228 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1229
1230 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1231 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1232 }
1233 }
1234 } else if ((byDecMode == KEY_CTL_TKIP) ||
1235 (byDecMode == KEY_CTL_CCMP)) {
1236 // TKIP/AES
1237
1238 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1239 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1240 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1241 if (byDecMode == KEY_CTL_TKIP) {
1242 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1243 } else {
1244 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1245 }
1246 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1247
1248 if ((byDecMode == KEY_CTL_TKIP) &&
1249 (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1250 // Software TKIP
1251 // 1. 3253 A
1252 PS802_11Header pMACHeader = (PS802_11Header) (pbyFrame);
1253 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1254 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1255 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1256 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1257 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1258 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1259 } else {
1260 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1261 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1262 }
1263 }
1264 }// end of TKIP/AES
1265
1266 if ((*(pbyIV+3) & 0x20) != 0)
1267 *pbExtIV = true;
1268 return true;
1269 }
1270
1271
1272 static bool s_bHostWepRxEncryption (
1273 PSDevice pDevice,
1274 unsigned char *pbyFrame,
1275 unsigned int FrameSize,
1276 unsigned char *pbyRsr,
1277 bool bOnFly,
1278 PSKeyItem pKey,
1279 unsigned char *pbyNewRsr,
1280 bool *pbExtIV,
1281 unsigned short *pwRxTSC15_0,
1282 unsigned long *pdwRxTSC47_16
1283 )
1284 {
1285 unsigned int PayloadLen = FrameSize;
1286 unsigned char *pbyIV;
1287 unsigned char byKeyIdx;
1288 unsigned char byDecMode = KEY_CTL_WEP;
1289 PS802_11Header pMACHeader;
1290
1291
1292
1293 *pwRxTSC15_0 = 0;
1294 *pdwRxTSC47_16 = 0;
1295
1296 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1297 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1298 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1299 pbyIV += 6; // 6 is 802.11 address4
1300 PayloadLen -= 6;
1301 }
1302 byKeyIdx = (*(pbyIV+3) & 0xc0);
1303 byKeyIdx >>= 6;
1304 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1305
1306
1307 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1308 byDecMode = KEY_CTL_TKIP;
1309 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1310 byDecMode = KEY_CTL_CCMP;
1311
1312 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1313
1314 if (byDecMode != pKey->byCipherSuite) {
1315 if (byDecMode == KEY_CTL_WEP) {
1316 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1317 } else if (pDevice->bLinkPass == true) {
1318 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1319 }
1320 return false;
1321 }
1322
1323 if (byDecMode == KEY_CTL_WEP) {
1324 // handle WEP
1325 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP \n");
1326 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1327 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1328 (bOnFly == false)) {
1329 // Software WEP
1330 // 1. 3253A
1331 // 2. WEP 256
1332 // 3. NotOnFly
1333
1334 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1335 memcpy(pDevice->abyPRNG, pbyIV, 3);
1336 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1337 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1338 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1339
1340 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1341 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1342 }
1343 }
1344 } else if ((byDecMode == KEY_CTL_TKIP) ||
1345 (byDecMode == KEY_CTL_CCMP)) {
1346 // TKIP/AES
1347
1348 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1349 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1350 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1351
1352 if (byDecMode == KEY_CTL_TKIP) {
1353 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1354 } else {
1355 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1356 }
1357 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1358
1359 if (byDecMode == KEY_CTL_TKIP) {
1360
1361 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1362 // Software TKIP
1363 // 1. 3253 A
1364 // 2. NotOnFly
1365 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1366 pMACHeader = (PS802_11Header) (pbyFrame);
1367 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1368 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1369 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1370 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1371 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1372 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1373 } else {
1374 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1375 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1376 }
1377 }
1378 }
1379
1380 if (byDecMode == KEY_CTL_CCMP) {
1381 if (bOnFly == false) {
1382 // Software CCMP
1383 // NotOnFly
1384 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1385 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1386 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1387 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1388 } else {
1389 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1390 }
1391 }
1392 }
1393
1394 }// end of TKIP/AES
1395
1396 if ((*(pbyIV+3) & 0x20) != 0)
1397 *pbExtIV = true;
1398 return true;
1399 }
1400
1401
1402
1403 static bool s_bAPModeRxData (
1404 PSDevice pDevice,
1405 struct sk_buff* skb,
1406 unsigned int FrameSize,
1407 unsigned int cbHeaderOffset,
1408 int iSANodeIndex,
1409 int iDANodeIndex
1410 )
1411 {
1412 PSMgmtObject pMgmt = pDevice->pMgmt;
1413 bool bRelayAndForward = false;
1414 bool bRelayOnly = false;
1415 unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1416 unsigned short wAID;
1417
1418
1419 struct sk_buff* skbcpy = NULL;
1420
1421 if (FrameSize > CB_MAX_BUF_SIZE)
1422 return false;
1423 // check DA
1424 if(is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1425 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1426
1427 skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1428
1429 // if any node in PS mode, buffer packet until DTIM.
1430 if (skbcpy == NULL) {
1431 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1432 }
1433 else {
1434 skbcpy->dev = pDevice->dev;
1435 skbcpy->len = FrameSize;
1436 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1437 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1438
1439 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1440 // set tx map
1441 pMgmt->abyPSTxMap[0] |= byMask[0];
1442 }
1443 }
1444 else {
1445 bRelayAndForward = true;
1446 }
1447 }
1448 else {
1449 // check if relay
1450 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1451 if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1452 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1453 // queue this skb until next PS tx, and then release.
1454
1455 skb->data += cbHeaderOffset;
1456 skb->tail += cbHeaderOffset;
1457 skb_put(skb, FrameSize);
1458 skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1459 pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1460 wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1461 pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
1462 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1463 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1464 return true;
1465 }
1466 else {
1467 bRelayOnly = true;
1468 }
1469 }
1470 }
1471 }
1472
1473 if (bRelayOnly || bRelayAndForward) {
1474 // relay this packet right now
1475 if (bRelayAndForward)
1476 iDANodeIndex = 0;
1477
1478 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1479 ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1480 }
1481
1482 if (bRelayOnly)
1483 return false;
1484 }
1485 // none associate, don't forward
1486 if (pDevice->uAssocCount == 0)
1487 return false;
1488
1489 return true;
1490 }
1491
Linux ARM platform port for MOXA ART SoC