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Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / staging / vt6655 / dpc.c
blobc0fab4bc87023b7828f308a973bb54b0e6749741
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 //#define PLICE_DEBUG
59
60
61 /*--------------------- Static Definitions -------------------------*/
62
63 /*--------------------- Static Classes ----------------------------*/
64
65 /*--------------------- Static Variables --------------------------*/
66 //static int msglevel =MSG_LEVEL_DEBUG;
67 static int msglevel =MSG_LEVEL_INFO;
68
69 const unsigned char acbyRxRate[MAX_RATE] =
70 {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
71
72
73 /*--------------------- Static Functions --------------------------*/
74
75 /*--------------------- Static Definitions -------------------------*/
76
77 /*--------------------- Static Functions --------------------------*/
78
79 static unsigned char s_byGetRateIdx(unsigned char byRate);
80
81
82 static void
83 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
84 PSEthernetHeader psEthHeader);
85
86 static void
87 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
88 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
89 unsigned int *pcbHeadSize);
90
91 static bool s_bAPModeRxCtl(
92 PSDevice pDevice,
93 unsigned char *pbyFrame,
94 int iSANodeIndex
95 );
96
97
98
99 static bool s_bAPModeRxData (
100 PSDevice pDevice,
101 struct sk_buff* skb,
102 unsigned int FrameSize,
103 unsigned int cbHeaderOffset,
104 int iSANodeIndex,
105 int iDANodeIndex
106 );
107
108
109 static bool s_bHandleRxEncryption(
110 PSDevice pDevice,
111 unsigned char *pbyFrame,
112 unsigned int FrameSize,
113 unsigned char *pbyRsr,
114 unsigned char *pbyNewRsr,
115 PSKeyItem *pKeyOut,
116 bool *pbExtIV,
117 unsigned short *pwRxTSC15_0,
118 unsigned long *pdwRxTSC47_16
119 );
120
121 static bool s_bHostWepRxEncryption(
122
123 PSDevice pDevice,
124 unsigned char *pbyFrame,
125 unsigned int FrameSize,
126 unsigned char *pbyRsr,
127 bool bOnFly,
128 PSKeyItem pKey,
129 unsigned char *pbyNewRsr,
130 bool *pbExtIV,
131 unsigned short *pwRxTSC15_0,
132 unsigned long *pdwRxTSC47_16
133
134 );
135
136 /*--------------------- Export Variables --------------------------*/
137
138 /*+
139 *
140 * Description:
141 * Translate Rcv 802.11 header to 802.3 header with Rx buffer
142 *
143 * Parameters:
144 * In:
145 * pDevice
146 * dwRxBufferAddr - Address of Rcv Buffer
147 * cbPacketSize - Rcv Packet size
148 * bIsWEP - If Rcv with WEP
149 * Out:
150 * pcbHeaderSize - 802.11 header size
151 *
152 * Return Value: None
153 *
154 -*/
155 static void
156 s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
157 unsigned int cbPacketSize, bool bIsWEP, bool bExtIV,
158 unsigned int *pcbHeadSize)
159 {
160 unsigned char *pbyRxBuffer;
161 unsigned int cbHeaderSize = 0;
162 unsigned short *pwType;
163 PS802_11Header pMACHeader;
164 int ii;
165
166
167 pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
168
169 s_vGetDASA((unsigned char *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
170
171 if (bIsWEP) {
172 if (bExtIV) {
173 // strip IV&ExtIV , add 8 byte
174 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
175 } else {
176 // strip IV , add 4 byte
177 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
178 }
179 }
180 else {
181 cbHeaderSize += WLAN_HDR_ADDR3_LEN;
182 };
183
184 pbyRxBuffer = (unsigned char *) (pbyRxBufferAddr + cbHeaderSize);
185 if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
186 cbHeaderSize += 6;
187 }
188 else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
189 cbHeaderSize += 6;
190 pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
191 if ((*pwType!= TYPE_PKT_IPX) && (*pwType != cpu_to_le16(0xF380))) {
192 }
193 else {
194 cbHeaderSize -= 8;
195 pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
196 if (bIsWEP) {
197 if (bExtIV) {
198 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
199 } else {
200 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
201 }
202 }
203 else {
204 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
205 }
206 }
207 }
208 else {
209 cbHeaderSize -= 2;
210 pwType = (unsigned short *) (pbyRxBufferAddr + cbHeaderSize);
211 if (bIsWEP) {
212 if (bExtIV) {
213 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
214 } else {
215 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
216 }
217 }
218 else {
219 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
220 }
221 }
222
223 cbHeaderSize -= (ETH_ALEN * 2);
224 pbyRxBuffer = (unsigned char *) (pbyRxBufferAddr + cbHeaderSize);
225 for(ii=0;ii<ETH_ALEN;ii++)
226 *pbyRxBuffer++ = pDevice->sRxEthHeader.abyDstAddr[ii];
227 for(ii=0;ii<ETH_ALEN;ii++)
228 *pbyRxBuffer++ = pDevice->sRxEthHeader.abySrcAddr[ii];
229
230 *pcbHeadSize = cbHeaderSize;
231 }
232
233
234
235
236 static unsigned char s_byGetRateIdx (unsigned char byRate)
237 {
238 unsigned char byRateIdx;
239
240 for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
241 if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
242 return byRateIdx;
243 }
244 return 0;
245 }
246
247
248 static void
249 s_vGetDASA(unsigned char *pbyRxBufferAddr, unsigned int *pcbHeaderSize,
250 PSEthernetHeader psEthHeader)
251 {
252 unsigned int cbHeaderSize = 0;
253 PS802_11Header pMACHeader;
254 int ii;
255
256 pMACHeader = (PS802_11Header) (pbyRxBufferAddr + cbHeaderSize);
257
258 if ((pMACHeader->wFrameCtl & FC_TODS) == 0) {
259 if (pMACHeader->wFrameCtl & FC_FROMDS) {
260 for(ii=0;ii<ETH_ALEN;ii++) {
261 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
262 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr3[ii];
263 }
264 }
265 else {
266 // IBSS mode
267 for(ii=0;ii<ETH_ALEN;ii++) {
268 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr1[ii];
269 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
270 }
271 }
272 }
273 else {
274 // Is AP mode..
275 if (pMACHeader->wFrameCtl & FC_FROMDS) {
276 for(ii=0;ii<ETH_ALEN;ii++) {
277 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
278 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr4[ii];
279 cbHeaderSize += 6;
280 }
281 }
282 else {
283 for(ii=0;ii<ETH_ALEN;ii++) {
284 psEthHeader->abyDstAddr[ii] = pMACHeader->abyAddr3[ii];
285 psEthHeader->abySrcAddr[ii] = pMACHeader->abyAddr2[ii];
286 }
287 }
288 };
289 *pcbHeaderSize = cbHeaderSize;
290 }
291
292
293
294
295 //PLICE_DEBUG ->
296
297 void MngWorkItem(void *Context)
298 {
299 PSRxMgmtPacket pRxMgmtPacket;
300 PSDevice pDevice = (PSDevice) Context;
301 //printk("Enter MngWorkItem,Queue packet num is %d\n",pDevice->rxManeQueue.packet_num);
302 spin_lock_irq(&pDevice->lock);
303 while(pDevice->rxManeQueue.packet_num != 0)
304 {
305 pRxMgmtPacket = DeQueue(pDevice);
306 vMgrRxManagePacket(pDevice, pDevice->pMgmt, pRxMgmtPacket);
307 }
308 spin_unlock_irq(&pDevice->lock);
309 }
310
311
312 //PLICE_DEBUG<-
313
314
315
316 bool
317 device_receive_frame (
318 PSDevice pDevice,
319 PSRxDesc pCurrRD
320 )
321 {
322
323 PDEVICE_RD_INFO pRDInfo = pCurrRD->pRDInfo;
324 #ifdef PLICE_DEBUG
325 //printk("device_receive_frame:pCurrRD is %x,pRDInfo is %x\n",pCurrRD,pCurrRD->pRDInfo);
326 #endif
327 struct net_device_stats* pStats=&pDevice->stats;
328 struct sk_buff* skb;
329 PSMgmtObject pMgmt = pDevice->pMgmt;
330 PSRxMgmtPacket pRxPacket = &(pDevice->pMgmt->sRxPacket);
331 PS802_11Header p802_11Header;
332 unsigned char *pbyRsr;
333 unsigned char *pbyNewRsr;
334 unsigned char *pbyRSSI;
335 PQWORD pqwTSFTime;
336 unsigned short *pwFrameSize;
337 unsigned char *pbyFrame;
338 bool bDeFragRx = false;
339 bool bIsWEP = false;
340 unsigned int cbHeaderOffset;
341 unsigned int FrameSize;
342 unsigned short wEtherType = 0;
343 int iSANodeIndex = -1;
344 int iDANodeIndex = -1;
345 unsigned int ii;
346 unsigned int cbIVOffset;
347 bool bExtIV = false;
348 unsigned char *pbyRxSts;
349 unsigned char *pbyRxRate;
350 unsigned char *pbySQ;
351 unsigned int cbHeaderSize;
352 PSKeyItem pKey = NULL;
353 unsigned short wRxTSC15_0 = 0;
354 unsigned long dwRxTSC47_16 = 0;
355 SKeyItem STempKey;
356 // 802.11h RPI
357 unsigned long dwDuration = 0;
358 long ldBm = 0;
359 long ldBmThreshold = 0;
360 PS802_11Header pMACHeader;
361 bool bRxeapol_key = false;
362
363 // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- device_receive_frame---\n");
364
365 skb = pRDInfo->skb;
366
367
368 //PLICE_DEBUG->
369 #if 1
370 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
371 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
372 #endif
373 //PLICE_DEBUG<-
374 pwFrameSize = (unsigned short *)(skb->data + 2);
375 FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
376
377 // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
378 // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
379 if ((FrameSize > 2364)||(FrameSize <= 32)) {
380 // Frame Size error drop this packet.
381 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 1 \n");
382 return false;
383 }
384
385 pbyRxSts = (unsigned char *) (skb->data);
386 pbyRxRate = (unsigned char *) (skb->data + 1);
387 pbyRsr = (unsigned char *) (skb->data + FrameSize - 1);
388 pbyRSSI = (unsigned char *) (skb->data + FrameSize - 2);
389 pbyNewRsr = (unsigned char *) (skb->data + FrameSize - 3);
390 pbySQ = (unsigned char *) (skb->data + FrameSize - 4);
391 pqwTSFTime = (PQWORD) (skb->data + FrameSize - 12);
392 pbyFrame = (unsigned char *)(skb->data + 4);
393
394 // get packet size
395 FrameSize = cpu_to_le16(*pwFrameSize);
396
397 if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
398 // Min: 14 bytes ACK
399 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 2 \n");
400 return false;
401 }
402 //PLICE_DEBUG->
403 #if 1
404 // update receive statistic counter
405 STAvUpdateRDStatCounter(&pDevice->scStatistic,
406 *pbyRsr,
407 *pbyNewRsr,
408 *pbyRxRate,
409 pbyFrame,
410 FrameSize);
411
412 #endif
413
414 pMACHeader=(PS802_11Header)((unsigned char *) (skb->data)+8);
415 //PLICE_DEBUG<-
416 if (pDevice->bMeasureInProgress == true) {
417 if ((*pbyRsr & RSR_CRCOK) != 0) {
418 pDevice->byBasicMap |= 0x01;
419 }
420 dwDuration = (FrameSize << 4);
421 dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
422 if (*pbyRxRate <= RATE_11M) {
423 if (*pbyRxSts & 0x01) {
424 // long preamble
425 dwDuration += 192;
426 } else {
427 // short preamble
428 dwDuration += 96;
429 }
430 } else {
431 dwDuration += 16;
432 }
433 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
434 ldBmThreshold = -57;
435 for (ii = 7; ii > 0;) {
436 if (ldBm > ldBmThreshold) {
437 break;
438 }
439 ldBmThreshold -= 5;
440 ii--;
441 }
442 pDevice->dwRPIs[ii] += dwDuration;
443 return false;
444 }
445
446 if (!is_multicast_ether_addr(pbyFrame)) {
447 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header) (skb->data + 4))) {
448 pDevice->s802_11Counter.FrameDuplicateCount++;
449 return false;
450 }
451 }
452
453
454 // Use for TKIP MIC
455 s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
456
457 // filter packet send from myself
458 if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
459 return false;
460
461 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
462 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
463 p802_11Header = (PS802_11Header) (pbyFrame);
464 // get SA NodeIndex
465 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
466 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
467 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
468 }
469 }
470 }
471
472 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
473 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
474 return false;
475 }
476 }
477
478
479 if (IS_FC_WEP(pbyFrame)) {
480 bool bRxDecryOK = false;
481
482 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
483 bIsWEP = true;
484 if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
485 pKey = &STempKey;
486 pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
487 pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
488 pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
489 pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
490 pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
491 memcpy(pKey->abyKey,
492 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
493 pKey->uKeyLength
494 );
495
496 bRxDecryOK = s_bHostWepRxEncryption(pDevice,
497 pbyFrame,
498 FrameSize,
499 pbyRsr,
500 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
501 pKey,
502 pbyNewRsr,
503 &bExtIV,
504 &wRxTSC15_0,
505 &dwRxTSC47_16);
506 } else {
507 bRxDecryOK = s_bHandleRxEncryption(pDevice,
508 pbyFrame,
509 FrameSize,
510 pbyRsr,
511 pbyNewRsr,
512 &pKey,
513 &bExtIV,
514 &wRxTSC15_0,
515 &dwRxTSC47_16);
516 }
517
518 if (bRxDecryOK) {
519 if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
520 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
521 if ( (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
522 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
523 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
524 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
525 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
526
527 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
528 pDevice->s802_11Counter.TKIPICVErrors++;
529 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
530 pDevice->s802_11Counter.CCMPDecryptErrors++;
531 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
532 // pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
533 }
534 }
535 return false;
536 }
537 } else {
538 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
539 return false;
540 }
541 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
542 FrameSize -= 8; // Message Integrity Code
543 else
544 FrameSize -= 4; // 4 is ICV
545 }
546
547
548 //
549 // RX OK
550 //
551 //remove the CRC length
552 FrameSize -= ETH_FCS_LEN;
553
554 if (( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
555 (IS_FRAGMENT_PKT((skb->data+4)))
556 ) {
557 // defragment
558 bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header) (skb->data+4), FrameSize, bIsWEP, bExtIV);
559 pDevice->s802_11Counter.ReceivedFragmentCount++;
560 if (bDeFragRx) {
561 // defrag complete
562 skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
563 FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
564
565 }
566 else {
567 return false;
568 }
569 }
570
571
572 // Management & Control frame Handle
573 if ((IS_TYPE_DATA((skb->data+4))) == false) {
574 // Handle Control & Manage Frame
575
576 if (IS_TYPE_MGMT((skb->data+4))) {
577 unsigned char *pbyData1;
578 unsigned char *pbyData2;
579
580 pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
581 pRxPacket->cbMPDULen = FrameSize;
582 pRxPacket->uRSSI = *pbyRSSI;
583 pRxPacket->bySQ = *pbySQ;
584 HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
585 LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
586 if (bIsWEP) {
587 // strip IV
588 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
589 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
590 for (ii = 0; ii < (FrameSize - 4); ii++) {
591 *pbyData1 = *pbyData2;
592 pbyData1++;
593 pbyData2++;
594 }
595 }
596 pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
597 pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
598 //PLICE_DEBUG->
599 //EnQueue(pDevice,pRxPacket);
600
601 #ifdef THREAD
602 EnQueue(pDevice,pRxPacket);
603
604 //printk("enque time is %x\n",jiffies);
605 //up(&pDevice->mlme_semaphore);
606 //Enque (pDevice->FirstRecvMngList,pDevice->LastRecvMngList,pMgmt);
607 #else
608
609 #ifdef TASK_LET
610 EnQueue(pDevice,pRxPacket);
611 tasklet_schedule(&pDevice->RxMngWorkItem);
612 #else
613 //printk("RxMan\n");
614 vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
615 //tasklet_schedule(&pDevice->RxMngWorkItem);
616 #endif
617
618 #endif
619 //PLICE_DEBUG<-
620 //vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
621 // hostap Deamon handle 802.11 management
622 if (pDevice->bEnableHostapd) {
623 skb->dev = pDevice->apdev;
624 skb->data += 4;
625 skb->tail += 4;
626 skb_put(skb, FrameSize);
627 skb_reset_mac_header(skb);
628 skb->pkt_type = PACKET_OTHERHOST;
629 skb->protocol = htons(ETH_P_802_2);
630 memset(skb->cb, 0, sizeof(skb->cb));
631 netif_rx(skb);
632 return true;
633 }
634 }
635 else {
636 // Control Frame
637 };
638 return false;
639 }
640 else {
641 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
642 //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
643 if ( !(*pbyRsr & RSR_BSSIDOK)) {
644 if (bDeFragRx) {
645 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
646 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
647 pDevice->dev->name);
648 }
649 }
650 return false;
651 }
652 }
653 else {
654 // discard DATA packet while not associate || BSSID error
655 if ((pDevice->bLinkPass == false) ||
656 !(*pbyRsr & RSR_BSSIDOK)) {
657 if (bDeFragRx) {
658 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
659 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
660 pDevice->dev->name);
661 }
662 }
663 return false;
664 }
665 //mike add:station mode check eapol-key challenge--->
666 {
667 unsigned char Protocol_Version; //802.1x Authentication
668 unsigned char Packet_Type; //802.1x Authentication
669 if (bIsWEP)
670 cbIVOffset = 8;
671 else
672 cbIVOffset = 0;
673 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
674 skb->data[cbIVOffset + 8 + 24 + 6 + 1];
675 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
676 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
677 if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
678 if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
679 (Packet_Type==3)) { //802.1x OR eapol-key challenge frame receive
680 bRxeapol_key = true;
681 }
682 }
683 }
684 //mike add:station mode check eapol-key challenge<---
685 }
686 }
687
688
689 // Data frame Handle
690
691
692 if (pDevice->bEnablePSMode) {
693 if (IS_FC_MOREDATA((skb->data+4))) {
694 if (*pbyRsr & RSR_ADDROK) {
695 //PSbSendPSPOLL((PSDevice)pDevice);
696 }
697 }
698 else {
699 if (pDevice->pMgmt->bInTIMWake == true) {
700 pDevice->pMgmt->bInTIMWake = false;
701 }
702 }
703 }
704
705 // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
706 if (pDevice->bDiversityEnable && (FrameSize>50) &&
707 (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
708 (pDevice->bLinkPass == true)) {
709 //printk("device_receive_frame: RxRate is %d\n",*pbyRxRate);
710 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
711 }
712
713
714 if (pDevice->byLocalID != REV_ID_VT3253_B1) {
715 pDevice->uCurrRSSI = *pbyRSSI;
716 }
717 pDevice->byCurrSQ = *pbySQ;
718
719 if ((*pbyRSSI != 0) &&
720 (pMgmt->pCurrBSS!=NULL)) {
721 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
722 // Moniter if RSSI is too strong.
723 pMgmt->pCurrBSS->byRSSIStatCnt++;
724 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
725 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
726 for(ii=0;ii<RSSI_STAT_COUNT;ii++) {
727 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
728 pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
729 }
730 }
731 }
732
733 // -----------------------------------------------
734
735 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
736 unsigned char abyMacHdr[24];
737
738 // Only 802.1x packet incoming allowed
739 if (bIsWEP)
740 cbIVOffset = 8;
741 else
742 cbIVOffset = 0;
743 wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
744 skb->data[cbIVOffset + 4 + 24 + 6 + 1];
745
746 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
747 if (wEtherType == ETH_P_PAE) {
748 skb->dev = pDevice->apdev;
749
750 if (bIsWEP == true) {
751 // strip IV header(8)
752 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
753 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
754 }
755 skb->data += (cbIVOffset + 4);
756 skb->tail += (cbIVOffset + 4);
757 skb_put(skb, FrameSize);
758 skb_reset_mac_header(skb);
759
760 skb->pkt_type = PACKET_OTHERHOST;
761 skb->protocol = htons(ETH_P_802_2);
762 memset(skb->cb, 0, sizeof(skb->cb));
763 netif_rx(skb);
764 return true;
765
766 }
767 // check if 802.1x authorized
768 if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
769 return false;
770 }
771
772
773 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
774 if (bIsWEP) {
775 FrameSize -= 8; //MIC
776 }
777 }
778
779 //--------------------------------------------------------------------------------
780 // Soft MIC
781 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
782 if (bIsWEP) {
783 unsigned long *pdwMIC_L;
784 unsigned long *pdwMIC_R;
785 unsigned long dwMIC_Priority;
786 unsigned long dwMICKey0 = 0, dwMICKey1 = 0;
787 unsigned long dwLocalMIC_L = 0;
788 unsigned long dwLocalMIC_R = 0;
789 viawget_wpa_header *wpahdr;
790
791
792 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
793 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
794 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
795 }
796 else {
797 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
798 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
799 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
800 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
801 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
802 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
803 } else {
804 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
805 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
806 }
807 }
808
809 MIC_vInit(dwMICKey0, dwMICKey1);
810 MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
811 dwMIC_Priority = 0;
812 MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
813 // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
814 MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
815 FrameSize - WLAN_HDR_ADDR3_LEN - 8);
816 MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
817 MIC_vUnInit();
818
819 pdwMIC_L = (unsigned long *)(skb->data + 4 + FrameSize);
820 pdwMIC_R = (unsigned long *)(skb->data + 4 + FrameSize + 4);
821 //DBG_PRN_GRP12(("RxL: %lx, RxR: %lx\n", *pdwMIC_L, *pdwMIC_R));
822 //DBG_PRN_GRP12(("LocalL: %lx, LocalR: %lx\n", dwLocalMIC_L, dwLocalMIC_R));
823 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwMICKey0= %lx,dwMICKey1= %lx \n", dwMICKey0, dwMICKey1);
824
825
826 if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
827 (pDevice->bRxMICFail == true)) {
828 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
829 pDevice->bRxMICFail = false;
830 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
831 pDevice->s802_11Counter.TKIPLocalMICFailures++;
832 if (bDeFragRx) {
833 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
834 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
835 pDevice->dev->name);
836 }
837 }
838 //2008-0409-07, <Add> by Einsn Liu
839 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
840 //send event to wpa_supplicant
841 //if(pDevice->bWPADevEnable == true)
842 {
843 union iwreq_data wrqu;
844 struct iw_michaelmicfailure ev;
845 int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
846 memset(&ev, 0, sizeof(ev));
847 ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
848 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
849 (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
850 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
851 ev.flags |= IW_MICFAILURE_PAIRWISE;
852 } else {
853 ev.flags |= IW_MICFAILURE_GROUP;
854 }
855
856 ev.src_addr.sa_family = ARPHRD_ETHER;
857 memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
858 memset(&wrqu, 0, sizeof(wrqu));
859 wrqu.data.length = sizeof(ev);
860 wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
861
862 }
863 #endif
864
865
866 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
867 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
868 if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
869 (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
870 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
871 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
872 wpahdr->type = VIAWGET_PTK_MIC_MSG;
873 } else {
874 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
875 wpahdr->type = VIAWGET_GTK_MIC_MSG;
876 }
877 wpahdr->resp_ie_len = 0;
878 wpahdr->req_ie_len = 0;
879 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
880 pDevice->skb->dev = pDevice->wpadev;
881 skb_reset_mac_header(pDevice->skb);
882 pDevice->skb->pkt_type = PACKET_HOST;
883 pDevice->skb->protocol = htons(ETH_P_802_2);
884 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
885 netif_rx(pDevice->skb);
886 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
887 }
888
889 return false;
890
891 }
892 }
893 } //---end of SOFT MIC-----------------------------------------------------------------------
894
895 // ++++++++++ Reply Counter Check +++++++++++++
896
897 if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
898 (pKey->byCipherSuite == KEY_CTL_CCMP))) {
899 if (bIsWEP) {
900 unsigned short wLocalTSC15_0 = 0;
901 unsigned long dwLocalTSC47_16 = 0;
902 unsigned long long RSC = 0;
903 // endian issues
904 RSC = *((unsigned long long *) &(pKey->KeyRSC));
905 wLocalTSC15_0 = (unsigned short) RSC;
906 dwLocalTSC47_16 = (unsigned long) (RSC>>16);
907
908 RSC = dwRxTSC47_16;
909 RSC <<= 16;
910 RSC += wRxTSC15_0;
911 memcpy(&(pKey->KeyRSC), &RSC, sizeof(QWORD));
912
913 if ( (pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
914 (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
915 // check RSC
916 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
917 (dwRxTSC47_16 <= dwLocalTSC47_16) &&
918 !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
919 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
920 if (pKey->byCipherSuite == KEY_CTL_TKIP)
921 //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
922 pDevice->s802_11Counter.TKIPReplays++;
923 else
924 //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
925 pDevice->s802_11Counter.CCMPReplays++;
926
927 if (bDeFragRx) {
928 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
929 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
930 pDevice->dev->name);
931 }
932 }
933 return false;
934 }
935 }
936 }
937 } // ----- End of Reply Counter Check --------------------------
938
939
940
941 if ((pKey != NULL) && (bIsWEP)) {
942 // pDevice->s802_11Counter.DecryptSuccessCount.QuadPart++;
943 }
944
945
946 s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
947 FrameSize -= cbHeaderOffset;
948 cbHeaderOffset += 4; // 4 is Rcv buffer header
949
950 // Null data, framesize = 14
951 if (FrameSize < 15)
952 return false;
953
954 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
955 if (s_bAPModeRxData(pDevice,
956 skb,
957 FrameSize,
958 cbHeaderOffset,
959 iSANodeIndex,
960 iDANodeIndex
961 ) == false) {
962
963 if (bDeFragRx) {
964 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
965 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
966 pDevice->dev->name);
967 }
968 }
969 return false;
970 }
971
972 // if(pDevice->bRxMICFail == false) {
973 // for (ii =0; ii < 100; ii++)
974 // printk(" %02x", *(skb->data + ii));
975 // printk("\n");
976 // }
977
978 }
979
980 skb->data += cbHeaderOffset;
981 skb->tail += cbHeaderOffset;
982 skb_put(skb, FrameSize);
983 skb->protocol=eth_type_trans(skb, skb->dev);
984
985
986 //drop frame not met IEEE 802.3
987 /*
988 if (pDevice->flags & DEVICE_FLAGS_VAL_PKT_LEN) {
989 if ((skb->protocol==htons(ETH_P_802_3)) &&
990 (skb->len!=htons(skb->mac.ethernet->h_proto))) {
991 pStats->rx_length_errors++;
992 pStats->rx_dropped++;
993 if (bDeFragRx) {
994 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
995 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
996 pDevice->dev->name);
997 }
998 }
999 return false;
1000 }
1001 }
1002 */
1003
1004 skb->ip_summed=CHECKSUM_NONE;
1005 pStats->rx_bytes +=skb->len;
1006 pStats->rx_packets++;
1007 netif_rx(skb);
1008
1009 if (bDeFragRx) {
1010 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
1011 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
1012 pDevice->dev->name);
1013 }
1014 return false;
1015 }
1016
1017 return true;
1018 }
1019
1020
1021 static bool s_bAPModeRxCtl (
1022 PSDevice pDevice,
1023 unsigned char *pbyFrame,
1024 int iSANodeIndex
1025 )
1026 {
1027 PS802_11Header p802_11Header;
1028 CMD_STATUS Status;
1029 PSMgmtObject pMgmt = pDevice->pMgmt;
1030
1031
1032 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1033
1034 p802_11Header = (PS802_11Header) (pbyFrame);
1035 if (!IS_TYPE_MGMT(pbyFrame)) {
1036
1037 // Data & PS-Poll packet
1038 // check frame class
1039 if (iSANodeIndex > 0) {
1040 // frame class 3 fliter & checking
1041 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1042 // send deauth notification
1043 // reason = (6) class 2 received from nonauth sta
1044 vMgrDeAuthenBeginSta(pDevice,
1045 pMgmt,
1046 (unsigned char *)(p802_11Header->abyAddr2),
1047 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1048 &Status
1049 );
1050 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1051 return true;
1052 }
1053 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1054 // send deassoc notification
1055 // reason = (7) class 3 received from nonassoc sta
1056 vMgrDisassocBeginSta(pDevice,
1057 pMgmt,
1058 (unsigned char *)(p802_11Header->abyAddr2),
1059 (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1060 &Status
1061 );
1062 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1063 return true;
1064 }
1065
1066 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1067 // delcare received ps-poll event
1068 if (IS_CTL_PSPOLL(pbyFrame)) {
1069 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1070 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1071 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1072 }
1073 else {
1074 // check Data PS state
1075 // if PW bit off, send out all PS bufferring packets.
1076 if (!IS_FC_POWERMGT(pbyFrame)) {
1077 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1078 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1079 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1080 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1081 }
1082 }
1083 }
1084 else {
1085 if (IS_FC_POWERMGT(pbyFrame)) {
1086 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
1087 // Once if STA in PS state, enable multicast bufferring
1088 pMgmt->sNodeDBTable[0].bPSEnable = true;
1089 }
1090 else {
1091 // clear all pending PS frame.
1092 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1093 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1094 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1095 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1096 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1097
1098 }
1099 }
1100 }
1101 }
1102 else {
1103 vMgrDeAuthenBeginSta(pDevice,
1104 pMgmt,
1105 (unsigned char *)(p802_11Header->abyAddr2),
1106 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1107 &Status
1108 );
1109 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1110 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
1111 p802_11Header->abyAddr3);
1112 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
1113 p802_11Header->abyAddr2);
1114 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
1115 p802_11Header->abyAddr1);
1116 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl );
1117 VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
1118 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode );
1119 return true;
1120 }
1121 }
1122 }
1123 return false;
1124
1125 }
1126
1127 static bool s_bHandleRxEncryption (
1128 PSDevice pDevice,
1129 unsigned char *pbyFrame,
1130 unsigned int FrameSize,
1131 unsigned char *pbyRsr,
1132 unsigned char *pbyNewRsr,
1133 PSKeyItem *pKeyOut,
1134 bool *pbExtIV,
1135 unsigned short *pwRxTSC15_0,
1136 unsigned long *pdwRxTSC47_16
1137 )
1138 {
1139 unsigned int PayloadLen = FrameSize;
1140 unsigned char *pbyIV;
1141 unsigned char byKeyIdx;
1142 PSKeyItem pKey = NULL;
1143 unsigned char byDecMode = KEY_CTL_WEP;
1144 PSMgmtObject pMgmt = pDevice->pMgmt;
1145
1146
1147 *pwRxTSC15_0 = 0;
1148 *pdwRxTSC47_16 = 0;
1149
1150 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1151 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1152 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1153 pbyIV += 6; // 6 is 802.11 address4
1154 PayloadLen -= 6;
1155 }
1156 byKeyIdx = (*(pbyIV+3) & 0xc0);
1157 byKeyIdx >>= 6;
1158 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1159
1160 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1161 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1162 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1163 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1164 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1165 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1166 (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1167 // unicast pkt use pairwise key
1168 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1169 if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1170 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1171 byDecMode = KEY_CTL_TKIP;
1172 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1173 byDecMode = KEY_CTL_CCMP;
1174 }
1175 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1176 } else {
1177 // use group key
1178 KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1179 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1180 byDecMode = KEY_CTL_TKIP;
1181 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1182 byDecMode = KEY_CTL_CCMP;
1183 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1184 }
1185 }
1186 // our WEP only support Default Key
1187 if (pKey == NULL) {
1188 // use default group key
1189 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1190 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1191 byDecMode = KEY_CTL_TKIP;
1192 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1193 byDecMode = KEY_CTL_CCMP;
1194 }
1195 *pKeyOut = pKey;
1196
1197 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1198
1199 if (pKey == NULL) {
1200 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1201 if (byDecMode == KEY_CTL_WEP) {
1202 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1203 } else if (pDevice->bLinkPass == true) {
1204 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1205 }
1206 return false;
1207 }
1208 if (byDecMode != pKey->byCipherSuite) {
1209 if (byDecMode == KEY_CTL_WEP) {
1210 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1211 } else if (pDevice->bLinkPass == true) {
1212 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1213 }
1214 *pKeyOut = NULL;
1215 return false;
1216 }
1217 if (byDecMode == KEY_CTL_WEP) {
1218 // handle WEP
1219 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1220 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1221 // Software WEP
1222 // 1. 3253A
1223 // 2. WEP 256
1224
1225 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1226 memcpy(pDevice->abyPRNG, pbyIV, 3);
1227 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1228 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1229 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1230
1231 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1232 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1233 }
1234 }
1235 } else if ((byDecMode == KEY_CTL_TKIP) ||
1236 (byDecMode == KEY_CTL_CCMP)) {
1237 // TKIP/AES
1238
1239 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1240 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1241 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1242 if (byDecMode == KEY_CTL_TKIP) {
1243 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1244 } else {
1245 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1246 }
1247 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1248
1249 if ((byDecMode == KEY_CTL_TKIP) &&
1250 (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1251 // Software TKIP
1252 // 1. 3253 A
1253 PS802_11Header pMACHeader = (PS802_11Header) (pbyFrame);
1254 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1255 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1256 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1257 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1258 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1259 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1260 } else {
1261 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1262 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1263 }
1264 }
1265 }// end of TKIP/AES
1266
1267 if ((*(pbyIV+3) & 0x20) != 0)
1268 *pbExtIV = true;
1269 return true;
1270 }
1271
1272
1273 static bool s_bHostWepRxEncryption (
1274 PSDevice pDevice,
1275 unsigned char *pbyFrame,
1276 unsigned int FrameSize,
1277 unsigned char *pbyRsr,
1278 bool bOnFly,
1279 PSKeyItem pKey,
1280 unsigned char *pbyNewRsr,
1281 bool *pbExtIV,
1282 unsigned short *pwRxTSC15_0,
1283 unsigned long *pdwRxTSC47_16
1284 )
1285 {
1286 unsigned int PayloadLen = FrameSize;
1287 unsigned char *pbyIV;
1288 unsigned char byKeyIdx;
1289 unsigned char byDecMode = KEY_CTL_WEP;
1290 PS802_11Header pMACHeader;
1291
1292
1293
1294 *pwRxTSC15_0 = 0;
1295 *pdwRxTSC47_16 = 0;
1296
1297 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1298 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1299 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1300 pbyIV += 6; // 6 is 802.11 address4
1301 PayloadLen -= 6;
1302 }
1303 byKeyIdx = (*(pbyIV+3) & 0xc0);
1304 byKeyIdx >>= 6;
1305 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1306
1307
1308 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1309 byDecMode = KEY_CTL_TKIP;
1310 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1311 byDecMode = KEY_CTL_CCMP;
1312
1313 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1314
1315 if (byDecMode != pKey->byCipherSuite) {
1316 if (byDecMode == KEY_CTL_WEP) {
1317 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1318 } else if (pDevice->bLinkPass == true) {
1319 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1320 }
1321 return false;
1322 }
1323
1324 if (byDecMode == KEY_CTL_WEP) {
1325 // handle WEP
1326 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP \n");
1327 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1328 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1329 (bOnFly == false)) {
1330 // Software WEP
1331 // 1. 3253A
1332 // 2. WEP 256
1333 // 3. NotOnFly
1334
1335 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1336 memcpy(pDevice->abyPRNG, pbyIV, 3);
1337 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1338 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1339 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1340
1341 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1342 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1343 }
1344 }
1345 } else if ((byDecMode == KEY_CTL_TKIP) ||
1346 (byDecMode == KEY_CTL_CCMP)) {
1347 // TKIP/AES
1348
1349 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1350 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1351 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1352
1353 if (byDecMode == KEY_CTL_TKIP) {
1354 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1355 } else {
1356 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1357 }
1358 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1359
1360 if (byDecMode == KEY_CTL_TKIP) {
1361
1362 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1363 // Software TKIP
1364 // 1. 3253 A
1365 // 2. NotOnFly
1366 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1367 pMACHeader = (PS802_11Header) (pbyFrame);
1368 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1369 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1370 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1371 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1372 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1373 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1374 } else {
1375 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1376 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1377 }
1378 }
1379 }
1380
1381 if (byDecMode == KEY_CTL_CCMP) {
1382 if (bOnFly == false) {
1383 // Software CCMP
1384 // NotOnFly
1385 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1386 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1387 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1388 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1389 } else {
1390 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1391 }
1392 }
1393 }
1394
1395 }// end of TKIP/AES
1396
1397 if ((*(pbyIV+3) & 0x20) != 0)
1398 *pbExtIV = true;
1399 return true;
1400 }
1401
1402
1403
1404 static bool s_bAPModeRxData (
1405 PSDevice pDevice,
1406 struct sk_buff* skb,
1407 unsigned int FrameSize,
1408 unsigned int cbHeaderOffset,
1409 int iSANodeIndex,
1410 int iDANodeIndex
1411 )
1412 {
1413 PSMgmtObject pMgmt = pDevice->pMgmt;
1414 bool bRelayAndForward = false;
1415 bool bRelayOnly = false;
1416 unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1417 unsigned short wAID;
1418
1419
1420 struct sk_buff* skbcpy = NULL;
1421
1422 if (FrameSize > CB_MAX_BUF_SIZE)
1423 return false;
1424 // check DA
1425 if(is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1426 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1427
1428 skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1429
1430 // if any node in PS mode, buffer packet until DTIM.
1431 if (skbcpy == NULL) {
1432 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1433 }
1434 else {
1435 skbcpy->dev = pDevice->dev;
1436 skbcpy->len = FrameSize;
1437 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1438 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1439
1440 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1441 // set tx map
1442 pMgmt->abyPSTxMap[0] |= byMask[0];
1443 }
1444 }
1445 else {
1446 bRelayAndForward = true;
1447 }
1448 }
1449 else {
1450 // check if relay
1451 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1452 if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1453 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1454 // queue this skb until next PS tx, and then release.
1455
1456 skb->data += cbHeaderOffset;
1457 skb->tail += cbHeaderOffset;
1458 skb_put(skb, FrameSize);
1459 skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1460 pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1461 wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1462 pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
1463 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1464 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1465 return true;
1466 }
1467 else {
1468 bRelayOnly = true;
1469 }
1470 }
1471 }
1472 }
1473
1474 if (bRelayOnly || bRelayAndForward) {
1475 // relay this packet right now
1476 if (bRelayAndForward)
1477 iDANodeIndex = 0;
1478
1479 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1480 ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1481 }
1482
1483 if (bRelayOnly)
1484 return false;
1485 }
1486 // none associate, don't forward
1487 if (pDevice->uAssocCount == 0)
1488 return false;
1489
1490 return true;
1491 }
1492