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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / staging / vt6655 / dpc.c
blob01d5b99182d3132fb1f723e9899e52fa14c63a90
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 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
370 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
371 //PLICE_DEBUG<-
372 pwFrameSize = (unsigned short *)(skb->data + 2);
373 FrameSize = cpu_to_le16(pCurrRD->m_rd1RD1.wReqCount) - cpu_to_le16(pCurrRD->m_rd0RD0.wResCount);
374
375 // Max: 2312Payload + 30HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
376 // Min (ACK): 10HD +4CRC + 2Padding + 4Len + 8TSF + 4RSR
377 if ((FrameSize > 2364)||(FrameSize <= 32)) {
378 // Frame Size error drop this packet.
379 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 1 \n");
380 return false;
381 }
382
383 pbyRxSts = (unsigned char *) (skb->data);
384 pbyRxRate = (unsigned char *) (skb->data + 1);
385 pbyRsr = (unsigned char *) (skb->data + FrameSize - 1);
386 pbyRSSI = (unsigned char *) (skb->data + FrameSize - 2);
387 pbyNewRsr = (unsigned char *) (skb->data + FrameSize - 3);
388 pbySQ = (unsigned char *) (skb->data + FrameSize - 4);
389 pqwTSFTime = (PQWORD) (skb->data + FrameSize - 12);
390 pbyFrame = (unsigned char *)(skb->data + 4);
391
392 // get packet size
393 FrameSize = cpu_to_le16(*pwFrameSize);
394
395 if ((FrameSize > 2346)|(FrameSize < 14)) { // Max: 2312Payload + 30HD +4CRC
396 // Min: 14 bytes ACK
397 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- WRONG Length 2 \n");
398 return false;
399 }
400 //PLICE_DEBUG->
401 // update receive statistic counter
402 STAvUpdateRDStatCounter(&pDevice->scStatistic,
403 *pbyRsr,
404 *pbyNewRsr,
405 *pbyRxRate,
406 pbyFrame,
407 FrameSize);
408
409 pMACHeader=(PS802_11Header)((unsigned char *) (skb->data)+8);
410 //PLICE_DEBUG<-
411 if (pDevice->bMeasureInProgress == true) {
412 if ((*pbyRsr & RSR_CRCOK) != 0) {
413 pDevice->byBasicMap |= 0x01;
414 }
415 dwDuration = (FrameSize << 4);
416 dwDuration /= acbyRxRate[*pbyRxRate%MAX_RATE];
417 if (*pbyRxRate <= RATE_11M) {
418 if (*pbyRxSts & 0x01) {
419 // long preamble
420 dwDuration += 192;
421 } else {
422 // short preamble
423 dwDuration += 96;
424 }
425 } else {
426 dwDuration += 16;
427 }
428 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
429 ldBmThreshold = -57;
430 for (ii = 7; ii > 0;) {
431 if (ldBm > ldBmThreshold) {
432 break;
433 }
434 ldBmThreshold -= 5;
435 ii--;
436 }
437 pDevice->dwRPIs[ii] += dwDuration;
438 return false;
439 }
440
441 if (!is_multicast_ether_addr(pbyFrame)) {
442 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (PS802_11Header) (skb->data + 4))) {
443 pDevice->s802_11Counter.FrameDuplicateCount++;
444 return false;
445 }
446 }
447
448
449 // Use for TKIP MIC
450 s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
451
452 // filter packet send from myself
453 if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
454 return false;
455
456 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
457 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
458 p802_11Header = (PS802_11Header) (pbyFrame);
459 // get SA NodeIndex
460 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(p802_11Header->abyAddr2), &iSANodeIndex)) {
461 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
462 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
463 }
464 }
465 }
466
467 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
468 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
469 return false;
470 }
471 }
472
473
474 if (IS_FC_WEP(pbyFrame)) {
475 bool bRxDecryOK = false;
476
477 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
478 bIsWEP = true;
479 if ((pDevice->bEnableHostWEP) && (iSANodeIndex >= 0)) {
480 pKey = &STempKey;
481 pKey->byCipherSuite = pMgmt->sNodeDBTable[iSANodeIndex].byCipherSuite;
482 pKey->dwKeyIndex = pMgmt->sNodeDBTable[iSANodeIndex].dwKeyIndex;
483 pKey->uKeyLength = pMgmt->sNodeDBTable[iSANodeIndex].uWepKeyLength;
484 pKey->dwTSC47_16 = pMgmt->sNodeDBTable[iSANodeIndex].dwTSC47_16;
485 pKey->wTSC15_0 = pMgmt->sNodeDBTable[iSANodeIndex].wTSC15_0;
486 memcpy(pKey->abyKey,
487 &pMgmt->sNodeDBTable[iSANodeIndex].abyWepKey[0],
488 pKey->uKeyLength
489 );
490
491 bRxDecryOK = s_bHostWepRxEncryption(pDevice,
492 pbyFrame,
493 FrameSize,
494 pbyRsr,
495 pMgmt->sNodeDBTable[iSANodeIndex].bOnFly,
496 pKey,
497 pbyNewRsr,
498 &bExtIV,
499 &wRxTSC15_0,
500 &dwRxTSC47_16);
501 } else {
502 bRxDecryOK = s_bHandleRxEncryption(pDevice,
503 pbyFrame,
504 FrameSize,
505 pbyRsr,
506 pbyNewRsr,
507 &pKey,
508 &bExtIV,
509 &wRxTSC15_0,
510 &dwRxTSC47_16);
511 }
512
513 if (bRxDecryOK) {
514 if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
515 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
516 if ( (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
517 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
518 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
519 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
520 (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
521
522 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
523 pDevice->s802_11Counter.TKIPICVErrors++;
524 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP)) {
525 pDevice->s802_11Counter.CCMPDecryptErrors++;
526 } else if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_WEP)) {
527 // pDevice->s802_11Counter.WEPICVErrorCount.QuadPart++;
528 }
529 }
530 return false;
531 }
532 } else {
533 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
534 return false;
535 }
536 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
537 FrameSize -= 8; // Message Integrity Code
538 else
539 FrameSize -= 4; // 4 is ICV
540 }
541
542
543 //
544 // RX OK
545 //
546 //remove the CRC length
547 FrameSize -= ETH_FCS_LEN;
548
549 if (( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI))) && // unicast address
550 (IS_FRAGMENT_PKT((skb->data+4)))
551 ) {
552 // defragment
553 bDeFragRx = WCTLbHandleFragment(pDevice, (PS802_11Header) (skb->data+4), FrameSize, bIsWEP, bExtIV);
554 pDevice->s802_11Counter.ReceivedFragmentCount++;
555 if (bDeFragRx) {
556 // defrag complete
557 skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
558 FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
559
560 }
561 else {
562 return false;
563 }
564 }
565
566
567 // Management & Control frame Handle
568 if ((IS_TYPE_DATA((skb->data+4))) == false) {
569 // Handle Control & Manage Frame
570
571 if (IS_TYPE_MGMT((skb->data+4))) {
572 unsigned char *pbyData1;
573 unsigned char *pbyData2;
574
575 pRxPacket->p80211Header = (PUWLAN_80211HDR)(skb->data+4);
576 pRxPacket->cbMPDULen = FrameSize;
577 pRxPacket->uRSSI = *pbyRSSI;
578 pRxPacket->bySQ = *pbySQ;
579 HIDWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(HIDWORD(*pqwTSFTime));
580 LODWORD(pRxPacket->qwLocalTSF) = cpu_to_le32(LODWORD(*pqwTSFTime));
581 if (bIsWEP) {
582 // strip IV
583 pbyData1 = WLAN_HDR_A3_DATA_PTR(skb->data+4);
584 pbyData2 = WLAN_HDR_A3_DATA_PTR(skb->data+4) + 4;
585 for (ii = 0; ii < (FrameSize - 4); ii++) {
586 *pbyData1 = *pbyData2;
587 pbyData1++;
588 pbyData2++;
589 }
590 }
591 pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
592 pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
593 //PLICE_DEBUG->
594 //EnQueue(pDevice,pRxPacket);
595
596 #ifdef THREAD
597 EnQueue(pDevice,pRxPacket);
598
599 //printk("enque time is %x\n",jiffies);
600 //up(&pDevice->mlme_semaphore);
601 //Enque (pDevice->FirstRecvMngList,pDevice->LastRecvMngList,pMgmt);
602 #else
603
604 #ifdef TASK_LET
605 EnQueue(pDevice,pRxPacket);
606 tasklet_schedule(&pDevice->RxMngWorkItem);
607 #else
608 //printk("RxMan\n");
609 vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
610 //tasklet_schedule(&pDevice->RxMngWorkItem);
611 #endif
612
613 #endif
614 //PLICE_DEBUG<-
615 //vMgrRxManagePacket((void *)pDevice, pDevice->pMgmt, pRxPacket);
616 // hostap Deamon handle 802.11 management
617 if (pDevice->bEnableHostapd) {
618 skb->dev = pDevice->apdev;
619 skb->data += 4;
620 skb->tail += 4;
621 skb_put(skb, FrameSize);
622 skb_reset_mac_header(skb);
623 skb->pkt_type = PACKET_OTHERHOST;
624 skb->protocol = htons(ETH_P_802_2);
625 memset(skb->cb, 0, sizeof(skb->cb));
626 netif_rx(skb);
627 return true;
628 }
629 }
630 else {
631 // Control Frame
632 };
633 return false;
634 }
635 else {
636 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
637 //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
638 if ( !(*pbyRsr & RSR_BSSIDOK)) {
639 if (bDeFragRx) {
640 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
641 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
642 pDevice->dev->name);
643 }
644 }
645 return false;
646 }
647 }
648 else {
649 // discard DATA packet while not associate || BSSID error
650 if ((pDevice->bLinkPass == false) ||
651 !(*pbyRsr & RSR_BSSIDOK)) {
652 if (bDeFragRx) {
653 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
654 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
655 pDevice->dev->name);
656 }
657 }
658 return false;
659 }
660 //mike add:station mode check eapol-key challenge--->
661 {
662 unsigned char Protocol_Version; //802.1x Authentication
663 unsigned char Packet_Type; //802.1x Authentication
664 if (bIsWEP)
665 cbIVOffset = 8;
666 else
667 cbIVOffset = 0;
668 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
669 skb->data[cbIVOffset + 8 + 24 + 6 + 1];
670 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
671 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
672 if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
673 if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
674 (Packet_Type==3)) { //802.1x OR eapol-key challenge frame receive
675 bRxeapol_key = true;
676 }
677 }
678 }
679 //mike add:station mode check eapol-key challenge<---
680 }
681 }
682
683
684 // Data frame Handle
685
686
687 if (pDevice->bEnablePSMode) {
688 if (IS_FC_MOREDATA((skb->data+4))) {
689 if (*pbyRsr & RSR_ADDROK) {
690 //PSbSendPSPOLL((PSDevice)pDevice);
691 }
692 }
693 else {
694 if (pDevice->pMgmt->bInTIMWake == true) {
695 pDevice->pMgmt->bInTIMWake = false;
696 }
697 }
698 };
699
700 // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
701 if (pDevice->bDiversityEnable && (FrameSize>50) &&
702 (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) &&
703 (pDevice->bLinkPass == true)) {
704 //printk("device_receive_frame: RxRate is %d\n",*pbyRxRate);
705 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
706 }
707
708
709 if (pDevice->byLocalID != REV_ID_VT3253_B1) {
710 pDevice->uCurrRSSI = *pbyRSSI;
711 }
712 pDevice->byCurrSQ = *pbySQ;
713
714 if ((*pbyRSSI != 0) &&
715 (pMgmt->pCurrBSS!=NULL)) {
716 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
717 // Moniter if RSSI is too strong.
718 pMgmt->pCurrBSS->byRSSIStatCnt++;
719 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
720 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
721 for(ii=0;ii<RSSI_STAT_COUNT;ii++) {
722 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
723 pMgmt->pCurrBSS->ldBmMAX = max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
724 }
725 }
726 }
727
728 // -----------------------------------------------
729
730 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnable8021x == true)){
731 unsigned char abyMacHdr[24];
732
733 // Only 802.1x packet incoming allowed
734 if (bIsWEP)
735 cbIVOffset = 8;
736 else
737 cbIVOffset = 0;
738 wEtherType = (skb->data[cbIVOffset + 4 + 24 + 6] << 8) |
739 skb->data[cbIVOffset + 4 + 24 + 6 + 1];
740
741 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wEtherType = %04x \n", wEtherType);
742 if (wEtherType == ETH_P_PAE) {
743 skb->dev = pDevice->apdev;
744
745 if (bIsWEP == true) {
746 // strip IV header(8)
747 memcpy(&abyMacHdr[0], (skb->data + 4), 24);
748 memcpy((skb->data + 4 + cbIVOffset), &abyMacHdr[0], 24);
749 }
750 skb->data += (cbIVOffset + 4);
751 skb->tail += (cbIVOffset + 4);
752 skb_put(skb, FrameSize);
753 skb_reset_mac_header(skb);
754
755 skb->pkt_type = PACKET_OTHERHOST;
756 skb->protocol = htons(ETH_P_802_2);
757 memset(skb->cb, 0, sizeof(skb->cb));
758 netif_rx(skb);
759 return true;
760
761 }
762 // check if 802.1x authorized
763 if (!(pMgmt->sNodeDBTable[iSANodeIndex].dwFlags & WLAN_STA_AUTHORIZED))
764 return false;
765 }
766
767
768 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
769 if (bIsWEP) {
770 FrameSize -= 8; //MIC
771 }
772 }
773
774 //--------------------------------------------------------------------------------
775 // Soft MIC
776 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
777 if (bIsWEP) {
778 unsigned long *pdwMIC_L;
779 unsigned long *pdwMIC_R;
780 unsigned long dwMIC_Priority;
781 unsigned long dwMICKey0 = 0, dwMICKey1 = 0;
782 unsigned long dwLocalMIC_L = 0;
783 unsigned long dwLocalMIC_R = 0;
784 viawget_wpa_header *wpahdr;
785
786
787 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
788 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
789 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
790 }
791 else {
792 if (pDevice->pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
793 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
794 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
795 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
796 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[16]));
797 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[20]));
798 } else {
799 dwMICKey0 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[24]));
800 dwMICKey1 = cpu_to_le32(*(unsigned long *)(&pKey->abyKey[28]));
801 }
802 }
803
804 MIC_vInit(dwMICKey0, dwMICKey1);
805 MIC_vAppend((unsigned char *)&(pDevice->sRxEthHeader.abyDstAddr[0]), 12);
806 dwMIC_Priority = 0;
807 MIC_vAppend((unsigned char *)&dwMIC_Priority, 4);
808 // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
809 MIC_vAppend((unsigned char *)(skb->data + 4 + WLAN_HDR_ADDR3_LEN + 8),
810 FrameSize - WLAN_HDR_ADDR3_LEN - 8);
811 MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
812 MIC_vUnInit();
813
814 pdwMIC_L = (unsigned long *)(skb->data + 4 + FrameSize);
815 pdwMIC_R = (unsigned long *)(skb->data + 4 + FrameSize + 4);
816 //DBG_PRN_GRP12(("RxL: %lx, RxR: %lx\n", *pdwMIC_L, *pdwMIC_R));
817 //DBG_PRN_GRP12(("LocalL: %lx, LocalR: %lx\n", dwLocalMIC_L, dwLocalMIC_R));
818 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwMICKey0= %lx,dwMICKey1= %lx \n", dwMICKey0, dwMICKey1);
819
820
821 if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
822 (pDevice->bRxMICFail == true)) {
823 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
824 pDevice->bRxMICFail = false;
825 //pDevice->s802_11Counter.TKIPLocalMICFailures.QuadPart++;
826 pDevice->s802_11Counter.TKIPLocalMICFailures++;
827 if (bDeFragRx) {
828 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
829 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
830 pDevice->dev->name);
831 }
832 }
833 //2008-0409-07, <Add> by Einsn Liu
834 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
835 //send event to wpa_supplicant
836 //if(pDevice->bWPADevEnable == true)
837 {
838 union iwreq_data wrqu;
839 struct iw_michaelmicfailure ev;
840 int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
841 memset(&ev, 0, sizeof(ev));
842 ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
843 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
844 (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
845 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
846 ev.flags |= IW_MICFAILURE_PAIRWISE;
847 } else {
848 ev.flags |= IW_MICFAILURE_GROUP;
849 }
850
851 ev.src_addr.sa_family = ARPHRD_ETHER;
852 memcpy(ev.src_addr.sa_data, pMACHeader->abyAddr2, ETH_ALEN);
853 memset(&wrqu, 0, sizeof(wrqu));
854 wrqu.data.length = sizeof(ev);
855 wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
856
857 }
858 #endif
859
860
861 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
862 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
863 if ((pDevice->pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
864 (pDevice->pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
865 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
866 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR;
867 wpahdr->type = VIAWGET_PTK_MIC_MSG;
868 } else {
869 //s802_11_Status.Flags = NDIS_802_11_AUTH_REQUEST_GROUP_ERROR;
870 wpahdr->type = VIAWGET_GTK_MIC_MSG;
871 }
872 wpahdr->resp_ie_len = 0;
873 wpahdr->req_ie_len = 0;
874 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
875 pDevice->skb->dev = pDevice->wpadev;
876 skb_reset_mac_header(pDevice->skb);
877 pDevice->skb->pkt_type = PACKET_HOST;
878 pDevice->skb->protocol = htons(ETH_P_802_2);
879 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
880 netif_rx(pDevice->skb);
881 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
882 };
883
884 return false;
885
886 }
887 }
888 } //---end of SOFT MIC-----------------------------------------------------------------------
889
890 // ++++++++++ Reply Counter Check +++++++++++++
891
892 if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
893 (pKey->byCipherSuite == KEY_CTL_CCMP))) {
894 if (bIsWEP) {
895 unsigned short wLocalTSC15_0 = 0;
896 unsigned long dwLocalTSC47_16 = 0;
897 unsigned long long RSC = 0;
898 // endian issues
899 RSC = *((unsigned long long *) &(pKey->KeyRSC));
900 wLocalTSC15_0 = (unsigned short) RSC;
901 dwLocalTSC47_16 = (unsigned long) (RSC>>16);
902
903 RSC = dwRxTSC47_16;
904 RSC <<= 16;
905 RSC += wRxTSC15_0;
906 memcpy(&(pKey->KeyRSC), &RSC, sizeof(QWORD));
907
908 if ( (pDevice->sMgmtObj.eCurrMode == WMAC_MODE_ESS_STA) &&
909 (pDevice->sMgmtObj.eCurrState == WMAC_STATE_ASSOC)) {
910 // check RSC
911 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
912 (dwRxTSC47_16 <= dwLocalTSC47_16) &&
913 !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
914 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
915 if (pKey->byCipherSuite == KEY_CTL_TKIP)
916 //pDevice->s802_11Counter.TKIPReplays.QuadPart++;
917 pDevice->s802_11Counter.TKIPReplays++;
918 else
919 //pDevice->s802_11Counter.CCMPReplays.QuadPart++;
920 pDevice->s802_11Counter.CCMPReplays++;
921
922 if (bDeFragRx) {
923 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
924 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
925 pDevice->dev->name);
926 }
927 }
928 return false;
929 }
930 }
931 }
932 } // ----- End of Reply Counter Check --------------------------
933
934
935
936 if ((pKey != NULL) && (bIsWEP)) {
937 // pDevice->s802_11Counter.DecryptSuccessCount.QuadPart++;
938 }
939
940
941 s_vProcessRxMACHeader(pDevice, (unsigned char *)(skb->data+4), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
942 FrameSize -= cbHeaderOffset;
943 cbHeaderOffset += 4; // 4 is Rcv buffer header
944
945 // Null data, framesize = 14
946 if (FrameSize < 15)
947 return false;
948
949 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
950 if (s_bAPModeRxData(pDevice,
951 skb,
952 FrameSize,
953 cbHeaderOffset,
954 iSANodeIndex,
955 iDANodeIndex
956 ) == false) {
957
958 if (bDeFragRx) {
959 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
960 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
961 pDevice->dev->name);
962 }
963 }
964 return false;
965 }
966
967 // if(pDevice->bRxMICFail == false) {
968 // for (ii =0; ii < 100; ii++)
969 // printk(" %02x", *(skb->data + ii));
970 // printk("\n");
971 // }
972
973 }
974
975 skb->data += cbHeaderOffset;
976 skb->tail += cbHeaderOffset;
977 skb_put(skb, FrameSize);
978 skb->protocol=eth_type_trans(skb, skb->dev);
979
980
981 //drop frame not met IEEE 802.3
982 /*
983 if (pDevice->flags & DEVICE_FLAGS_VAL_PKT_LEN) {
984 if ((skb->protocol==htons(ETH_P_802_3)) &&
985 (skb->len!=htons(skb->mac.ethernet->h_proto))) {
986 pStats->rx_length_errors++;
987 pStats->rx_dropped++;
988 if (bDeFragRx) {
989 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
990 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
991 pDevice->dev->name);
992 }
993 }
994 return false;
995 }
996 }
997 */
998
999 skb->ip_summed=CHECKSUM_NONE;
1000 pStats->rx_bytes +=skb->len;
1001 pStats->rx_packets++;
1002 netif_rx(skb);
1003
1004 if (bDeFragRx) {
1005 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
1006 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
1007 pDevice->dev->name);
1008 }
1009 return false;
1010 }
1011
1012 return true;
1013 }
1014
1015
1016 static bool s_bAPModeRxCtl (
1017 PSDevice pDevice,
1018 unsigned char *pbyFrame,
1019 int iSANodeIndex
1020 )
1021 {
1022 PS802_11Header p802_11Header;
1023 CMD_STATUS Status;
1024 PSMgmtObject pMgmt = pDevice->pMgmt;
1025
1026
1027 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1028
1029 p802_11Header = (PS802_11Header) (pbyFrame);
1030 if (!IS_TYPE_MGMT(pbyFrame)) {
1031
1032 // Data & PS-Poll packet
1033 // check frame class
1034 if (iSANodeIndex > 0) {
1035 // frame class 3 fliter & checking
1036 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
1037 // send deauth notification
1038 // reason = (6) class 2 received from nonauth sta
1039 vMgrDeAuthenBeginSta(pDevice,
1040 pMgmt,
1041 (unsigned char *)(p802_11Header->abyAddr2),
1042 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1043 &Status
1044 );
1045 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
1046 return true;
1047 };
1048 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
1049 // send deassoc notification
1050 // reason = (7) class 3 received from nonassoc sta
1051 vMgrDisassocBeginSta(pDevice,
1052 pMgmt,
1053 (unsigned char *)(p802_11Header->abyAddr2),
1054 (WLAN_MGMT_REASON_CLASS3_NONASSOC),
1055 &Status
1056 );
1057 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
1058 return true;
1059 };
1060
1061 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
1062 // delcare received ps-poll event
1063 if (IS_CTL_PSPOLL(pbyFrame)) {
1064 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1065 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1066 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
1067 }
1068 else {
1069 // check Data PS state
1070 // if PW bit off, send out all PS bufferring packets.
1071 if (!IS_FC_POWERMGT(pbyFrame)) {
1072 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1073 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1074 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1075 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
1076 }
1077 }
1078 }
1079 else {
1080 if (IS_FC_POWERMGT(pbyFrame)) {
1081 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
1082 // Once if STA in PS state, enable multicast bufferring
1083 pMgmt->sNodeDBTable[0].bPSEnable = true;
1084 }
1085 else {
1086 // clear all pending PS frame.
1087 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
1088 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
1089 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
1090 bScheduleCommand((void *)pDevice, WLAN_CMD_RX_PSPOLL, NULL);
1091 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
1092
1093 }
1094 }
1095 }
1096 }
1097 else {
1098 vMgrDeAuthenBeginSta(pDevice,
1099 pMgmt,
1100 (unsigned char *)(p802_11Header->abyAddr2),
1101 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
1102 &Status
1103 );
1104 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
1105 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%02x-%02x-%02x=%02x-%02x-%02x \n",
1106 p802_11Header->abyAddr3[0],
1107 p802_11Header->abyAddr3[1],
1108 p802_11Header->abyAddr3[2],
1109 p802_11Header->abyAddr3[3],
1110 p802_11Header->abyAddr3[4],
1111 p802_11Header->abyAddr3[5]
1112 );
1113 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%02x-%02x-%02x=%02x-%02x-%02x \n",
1114 p802_11Header->abyAddr2[0],
1115 p802_11Header->abyAddr2[1],
1116 p802_11Header->abyAddr2[2],
1117 p802_11Header->abyAddr2[3],
1118 p802_11Header->abyAddr2[4],
1119 p802_11Header->abyAddr2[5]
1120 );
1121 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%02x-%02x-%02x=%02x-%02x-%02x \n",
1122 p802_11Header->abyAddr1[0],
1123 p802_11Header->abyAddr1[1],
1124 p802_11Header->abyAddr1[2],
1125 p802_11Header->abyAddr1[3],
1126 p802_11Header->abyAddr1[4],
1127 p802_11Header->abyAddr1[5]
1128 );
1129 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: wFrameCtl= %x\n", p802_11Header->wFrameCtl );
1130 VNSvInPortB(pDevice->PortOffset + MAC_REG_RCR, &(pDevice->byRxMode));
1131 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc:pDevice->byRxMode = %x\n", pDevice->byRxMode );
1132 return true;
1133 }
1134 }
1135 }
1136 return false;
1137
1138 }
1139
1140 static bool s_bHandleRxEncryption (
1141 PSDevice pDevice,
1142 unsigned char *pbyFrame,
1143 unsigned int FrameSize,
1144 unsigned char *pbyRsr,
1145 unsigned char *pbyNewRsr,
1146 PSKeyItem *pKeyOut,
1147 bool *pbExtIV,
1148 unsigned short *pwRxTSC15_0,
1149 unsigned long *pdwRxTSC47_16
1150 )
1151 {
1152 unsigned int PayloadLen = FrameSize;
1153 unsigned char *pbyIV;
1154 unsigned char byKeyIdx;
1155 PSKeyItem pKey = NULL;
1156 unsigned char byDecMode = KEY_CTL_WEP;
1157 PSMgmtObject pMgmt = pDevice->pMgmt;
1158
1159
1160 *pwRxTSC15_0 = 0;
1161 *pdwRxTSC47_16 = 0;
1162
1163 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1164 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1165 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1166 pbyIV += 6; // 6 is 802.11 address4
1167 PayloadLen -= 6;
1168 }
1169 byKeyIdx = (*(pbyIV+3) & 0xc0);
1170 byKeyIdx >>= 6;
1171 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1172
1173 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
1174 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
1175 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
1176 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
1177 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
1178 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
1179 (pDevice->pMgmt->byCSSPK != KEY_CTL_NONE)) {
1180 // unicast pkt use pairwise key
1181 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
1182 if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
1183 if (pDevice->pMgmt->byCSSPK == KEY_CTL_TKIP)
1184 byDecMode = KEY_CTL_TKIP;
1185 else if (pDevice->pMgmt->byCSSPK == KEY_CTL_CCMP)
1186 byDecMode = KEY_CTL_CCMP;
1187 }
1188 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
1189 } else {
1190 // use group key
1191 KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
1192 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1193 byDecMode = KEY_CTL_TKIP;
1194 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1195 byDecMode = KEY_CTL_CCMP;
1196 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
1197 }
1198 }
1199 // our WEP only support Default Key
1200 if (pKey == NULL) {
1201 // use default group key
1202 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
1203 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1204 byDecMode = KEY_CTL_TKIP;
1205 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1206 byDecMode = KEY_CTL_CCMP;
1207 }
1208 *pKeyOut = pKey;
1209
1210 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1211
1212 if (pKey == NULL) {
1213 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
1214 if (byDecMode == KEY_CTL_WEP) {
1215 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1216 } else if (pDevice->bLinkPass == true) {
1217 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1218 }
1219 return false;
1220 }
1221 if (byDecMode != pKey->byCipherSuite) {
1222 if (byDecMode == KEY_CTL_WEP) {
1223 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1224 } else if (pDevice->bLinkPass == true) {
1225 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1226 }
1227 *pKeyOut = NULL;
1228 return false;
1229 }
1230 if (byDecMode == KEY_CTL_WEP) {
1231 // handle WEP
1232 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1233 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
1234 // Software WEP
1235 // 1. 3253A
1236 // 2. WEP 256
1237
1238 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1239 memcpy(pDevice->abyPRNG, pbyIV, 3);
1240 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1241 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1242 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1243
1244 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1245 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1246 }
1247 }
1248 } else if ((byDecMode == KEY_CTL_TKIP) ||
1249 (byDecMode == KEY_CTL_CCMP)) {
1250 // TKIP/AES
1251
1252 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1253 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1254 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1255 if (byDecMode == KEY_CTL_TKIP) {
1256 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1257 } else {
1258 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1259 }
1260 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1261
1262 if ((byDecMode == KEY_CTL_TKIP) &&
1263 (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
1264 // Software TKIP
1265 // 1. 3253 A
1266 PS802_11Header pMACHeader = (PS802_11Header) (pbyFrame);
1267 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1268 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1269 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1270 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1271 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1272 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1273 } else {
1274 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1275 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1276 }
1277 }
1278 }// end of TKIP/AES
1279
1280 if ((*(pbyIV+3) & 0x20) != 0)
1281 *pbExtIV = true;
1282 return true;
1283 }
1284
1285
1286 static bool s_bHostWepRxEncryption (
1287 PSDevice pDevice,
1288 unsigned char *pbyFrame,
1289 unsigned int FrameSize,
1290 unsigned char *pbyRsr,
1291 bool bOnFly,
1292 PSKeyItem pKey,
1293 unsigned char *pbyNewRsr,
1294 bool *pbExtIV,
1295 unsigned short *pwRxTSC15_0,
1296 unsigned long *pdwRxTSC47_16
1297 )
1298 {
1299 unsigned int PayloadLen = FrameSize;
1300 unsigned char *pbyIV;
1301 unsigned char byKeyIdx;
1302 unsigned char byDecMode = KEY_CTL_WEP;
1303 PS802_11Header pMACHeader;
1304
1305
1306
1307 *pwRxTSC15_0 = 0;
1308 *pdwRxTSC47_16 = 0;
1309
1310 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
1311 if ( WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) &&
1312 WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame) ) {
1313 pbyIV += 6; // 6 is 802.11 address4
1314 PayloadLen -= 6;
1315 }
1316 byKeyIdx = (*(pbyIV+3) & 0xc0);
1317 byKeyIdx >>= 6;
1318 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
1319
1320
1321 if (pDevice->pMgmt->byCSSGK == KEY_CTL_TKIP)
1322 byDecMode = KEY_CTL_TKIP;
1323 else if (pDevice->pMgmt->byCSSGK == KEY_CTL_CCMP)
1324 byDecMode = KEY_CTL_CCMP;
1325
1326 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pDevice->pMgmt->byCSSPK, pDevice->pMgmt->byCSSGK, byDecMode);
1327
1328 if (byDecMode != pKey->byCipherSuite) {
1329 if (byDecMode == KEY_CTL_WEP) {
1330 // pDevice->s802_11Counter.WEPUndecryptableCount.QuadPart++;
1331 } else if (pDevice->bLinkPass == true) {
1332 // pDevice->s802_11Counter.DecryptFailureCount.QuadPart++;
1333 }
1334 return false;
1335 }
1336
1337 if (byDecMode == KEY_CTL_WEP) {
1338 // handle WEP
1339 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byDecMode == KEY_CTL_WEP \n");
1340 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
1341 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true) ||
1342 (bOnFly == false)) {
1343 // Software WEP
1344 // 1. 3253A
1345 // 2. WEP 256
1346 // 3. NotOnFly
1347
1348 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
1349 memcpy(pDevice->abyPRNG, pbyIV, 3);
1350 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
1351 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
1352 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
1353
1354 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
1355 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1356 }
1357 }
1358 } else if ((byDecMode == KEY_CTL_TKIP) ||
1359 (byDecMode == KEY_CTL_CCMP)) {
1360 // TKIP/AES
1361
1362 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
1363 *pdwRxTSC47_16 = cpu_to_le32(*(unsigned long *)(pbyIV + 4));
1364 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
1365
1366 if (byDecMode == KEY_CTL_TKIP) {
1367 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
1368 } else {
1369 *pwRxTSC15_0 = cpu_to_le16(*(unsigned short *)pbyIV);
1370 }
1371 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
1372
1373 if (byDecMode == KEY_CTL_TKIP) {
1374
1375 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) || (bOnFly == false)) {
1376 // Software TKIP
1377 // 1. 3253 A
1378 // 2. NotOnFly
1379 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_TKIP \n");
1380 pMACHeader = (PS802_11Header) (pbyFrame);
1381 TKIPvMixKey(pKey->abyKey, pMACHeader->abyAddr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
1382 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
1383 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
1384 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
1385 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1386 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
1387 } else {
1388 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
1389 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1390 }
1391 }
1392 }
1393
1394 if (byDecMode == KEY_CTL_CCMP) {
1395 if (bOnFly == false) {
1396 // Software CCMP
1397 // NotOnFly
1398 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"soft KEY_CTL_CCMP\n");
1399 if (AESbGenCCMP(pKey->abyKey, pbyFrame, FrameSize)) {
1400 *pbyNewRsr |= NEWRSR_DECRYPTOK;
1401 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC compare OK!\n");
1402 } else {
1403 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"CCMP MIC fail!\n");
1404 }
1405 }
1406 }
1407
1408 }// end of TKIP/AES
1409
1410 if ((*(pbyIV+3) & 0x20) != 0)
1411 *pbExtIV = true;
1412 return true;
1413 }
1414
1415
1416
1417 static bool s_bAPModeRxData (
1418 PSDevice pDevice,
1419 struct sk_buff* skb,
1420 unsigned int FrameSize,
1421 unsigned int cbHeaderOffset,
1422 int iSANodeIndex,
1423 int iDANodeIndex
1424 )
1425 {
1426 PSMgmtObject pMgmt = pDevice->pMgmt;
1427 bool bRelayAndForward = false;
1428 bool bRelayOnly = false;
1429 unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1430 unsigned short wAID;
1431
1432
1433 struct sk_buff* skbcpy = NULL;
1434
1435 if (FrameSize > CB_MAX_BUF_SIZE)
1436 return false;
1437 // check DA
1438 if(is_multicast_ether_addr((unsigned char *)(skb->data+cbHeaderOffset))) {
1439 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1440
1441 skbcpy = dev_alloc_skb((int)pDevice->rx_buf_sz);
1442
1443 // if any node in PS mode, buffer packet until DTIM.
1444 if (skbcpy == NULL) {
1445 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1446 }
1447 else {
1448 skbcpy->dev = pDevice->dev;
1449 skbcpy->len = FrameSize;
1450 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1451 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1452
1453 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1454 // set tx map
1455 pMgmt->abyPSTxMap[0] |= byMask[0];
1456 }
1457 }
1458 else {
1459 bRelayAndForward = true;
1460 }
1461 }
1462 else {
1463 // check if relay
1464 if (BSSDBbIsSTAInNodeDB(pMgmt, (unsigned char *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
1465 if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1466 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1467 // queue this skb until next PS tx, and then release.
1468
1469 skb->data += cbHeaderOffset;
1470 skb->tail += cbHeaderOffset;
1471 skb_put(skb, FrameSize);
1472 skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1473 pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1474 wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1475 pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
1476 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1477 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
1478 return true;
1479 }
1480 else {
1481 bRelayOnly = true;
1482 }
1483 }
1484 };
1485 }
1486
1487 if (bRelayOnly || bRelayAndForward) {
1488 // relay this packet right now
1489 if (bRelayAndForward)
1490 iDANodeIndex = 0;
1491
1492 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
1493 ROUTEbRelay(pDevice, (unsigned char *)(skb->data + cbHeaderOffset), FrameSize, (unsigned int)iDANodeIndex);
1494 }
1495
1496 if (bRelayOnly)
1497 return false;
1498 }
1499 // none associate, don't forward
1500 if (pDevice->uAssocCount == 0)
1501 return false;
1502
1503 return true;
1504 }
Tomato firmware and modifications.