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staging: vt6656: Remove hostapd functions.
[deliverable/linux.git] / drivers / staging / vt6656 / dpc.c
CommitLineData
92b96797
FB		 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
92b96797
FB		 32 * s_byGetRateIdx- get rate index
33 * s_vGetDASA- get data offset
34 * s_vProcessRxMACHeader- Rcv 802.11 and translate to 802.3
35 *
36 * Revision History:
37 *
38 */
39
d820fa95 40#include "dpc.h"
92b96797 41#include "device.h"
92b96797 42#include "rxtx.h"
92b96797 43#include "tether.h"
92b96797 44#include "card.h"
92b96797 45#include "bssdb.h"
92b96797 46#include "mac.h"
92b96797 47#include "baseband.h"
92b96797 48#include "michael.h"
92b96797 49#include "tkip.h"
92b96797 50#include "tcrc.h"
92b96797 51#include "wctl.h"
92b96797 52#include "rf.h"
92b96797 53#include "iowpa.h"
92b96797 54#include "aes_ccmp.h"
92b96797 55#include "datarate.h"
92b96797 56#include "usbpipe.h"
92b96797 57
92b96797
FB		 58//static int msglevel =MSG_LEVEL_DEBUG;
59static int msglevel =MSG_LEVEL_INFO;
60
3b138851 61static const u8 acbyRxRate[MAX_RATE] =
92b96797
FB		 62{2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
63
b902fbfe 64static u8 s_byGetRateIdx(u8 byRate);
92b96797
FB		 65
66static
8611a29a 67void
92b96797 68s_vGetDASA(
b902fbfe 69 u8 * pbyRxBufferAddr,
93a94c42 70 unsigned int *pcbHeaderSize,
ceb8c5da 71 struct ethhdr *psEthHeader
92b96797
FB		 72 );
73
45c73bb1
MP		 74static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
75 u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
76 u32 *pcbHeadSize);
92b96797 77
45c73bb1
MP		 78static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
79 s32 iSANodeIndex);
92b96797 80
45c73bb1
MP		 81static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
82 u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex);
92b96797 83
45c73bb1
MP		 84static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
85 u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
86 s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16);
92b96797 87
92b96797
FB		 88/*+
89 *
90 * Description:
91 * Translate Rcv 802.11 header to 802.3 header with Rx buffer
92 *
93 * Parameters:
94 * In:
95 * pDevice
96 * dwRxBufferAddr - Address of Rcv Buffer
97 * cbPacketSize - Rcv Packet size
98 * bIsWEP - If Rcv with WEP
99 * Out:
100 * pcbHeaderSize - 802.11 header size
101 *
102 * Return Value: None
103 *
104-*/
45c73bb1
MP		 105
106static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
107 u8 *pbyRxBufferAddr, u32 cbPacketSize, int bIsWEP, int bExtIV,
108 u32 *pcbHeadSize)
92b96797 109{
45c73bb1
MP		 110 u8 *pbyRxBuffer;
111 u32 cbHeaderSize = 0;
112 u16 *pwType;
1cac4a4b 113 struct ieee80211_hdr *pMACHeader;
45c73bb1 114 int ii;
92b96797 115
1cac4a4b 116 pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
92b96797 117
b902fbfe 118 s_vGetDASA((u8 *)pMACHeader, &cbHeaderSize, &pDevice->sRxEthHeader);
92b96797
FB		 119
120 if (bIsWEP) {
121 if (bExtIV) {
122 // strip IV&ExtIV , add 8 byte
123 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 8);
124 } else {
125 // strip IV , add 4 byte
126 cbHeaderSize += (WLAN_HDR_ADDR3_LEN + 4);
127 }
128 }
129 else {
130 cbHeaderSize += WLAN_HDR_ADDR3_LEN;
131 };
132
b902fbfe 133 pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
8329419a 134 if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
92b96797 135 cbHeaderSize += 6;
8329419a 136 } else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
92b96797 137 cbHeaderSize += 6;
3eaca0d2 138 pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
aa209eef 139 if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
203e4615
AM		 140 (*pwType == cpu_to_le16(0xF380))) {
141 cbHeaderSize -= 8;
3eaca0d2 142 pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
92b96797
FB		 143 if (bIsWEP) {
144 if (bExtIV) {
145 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
146 } else {
147 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
148 }
149 }
150 else {
151 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
152 }
153 }
154 }
155 else {
156 cbHeaderSize -= 2;
3eaca0d2 157 pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
92b96797
FB		 158 if (bIsWEP) {
159 if (bExtIV) {
160 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 8); // 8 is IV&ExtIV
161 } else {
162 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN - 4); // 4 is IV
163 }
164 }
165 else {
166 *pwType = htons(cbPacketSize - WLAN_HDR_ADDR3_LEN);
167 }
168 }
169
9a0e756c 170 cbHeaderSize -= (ETH_ALEN * 2);
b902fbfe 171 pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
9a0e756c 172 for (ii = 0; ii < ETH_ALEN; ii++)
ceb8c5da 173 *pbyRxBuffer++ = pDevice->sRxEthHeader.h_dest[ii];
9a0e756c 174 for (ii = 0; ii < ETH_ALEN; ii++)
ceb8c5da 175 *pbyRxBuffer++ = pDevice->sRxEthHeader.h_source[ii];
92b96797
FB		 176
177 *pcbHeadSize = cbHeaderSize;
178}
179
b902fbfe 180static u8 s_byGetRateIdx(u8 byRate)
92b96797 181{
b902fbfe 182 u8 byRateIdx;
92b96797
FB		 183
184 for (byRateIdx = 0; byRateIdx <MAX_RATE ; byRateIdx++) {
185 if (acbyRxRate[byRateIdx%MAX_RATE] == byRate)
186 return byRateIdx;
187 }
188 return 0;
189}
190
92b96797 191static
8611a29a 192void
92b96797 193s_vGetDASA (
b902fbfe 194 u8 * pbyRxBufferAddr,
93a94c42 195 unsigned int *pcbHeaderSize,
ceb8c5da 196 struct ethhdr *psEthHeader
92b96797
FB		 197 )
198{
cc856e61 199 unsigned int cbHeaderSize = 0;
1cac4a4b 200 struct ieee80211_hdr *pMACHeader;
9a0e756c
AM		 201 int ii;
202
1cac4a4b 203 pMACHeader = (struct ieee80211_hdr *) (pbyRxBufferAddr + cbHeaderSize);
9a0e756c 204
1cac4a4b
AM		 205 if ((pMACHeader->frame_control & FC_TODS) == 0) {
206 if (pMACHeader->frame_control & FC_FROMDS) {
9a0e756c 207 for (ii = 0; ii < ETH_ALEN; ii++) {
ceb8c5da 208 psEthHeader->h_dest[ii] =
1cac4a4b 209 pMACHeader->addr1[ii];
ceb8c5da 210 psEthHeader->h_source[ii] =
1cac4a4b 211 pMACHeader->addr3[ii];
9a0e756c
AM		 212 }
213 } else {
214 /* IBSS mode */
215 for (ii = 0; ii < ETH_ALEN; ii++) {
ceb8c5da 216 psEthHeader->h_dest[ii] =
1cac4a4b 217 pMACHeader->addr1[ii];
ceb8c5da 218 psEthHeader->h_source[ii] =
1cac4a4b 219 pMACHeader->addr2[ii];
9a0e756c
AM		 220 }
221 }
222 } else {
223 /* Is AP mode.. */
1cac4a4b 224 if (pMACHeader->frame_control & FC_FROMDS) {
9a0e756c 225 for (ii = 0; ii < ETH_ALEN; ii++) {
ceb8c5da 226 psEthHeader->h_dest[ii] =
1cac4a4b 227 pMACHeader->addr3[ii];
ceb8c5da 228 psEthHeader->h_source[ii] =
1cac4a4b 229 pMACHeader->addr4[ii];
9a0e756c
AM		 230 cbHeaderSize += 6;
231 }
232 } else {
233 for (ii = 0; ii < ETH_ALEN; ii++) {
ceb8c5da 234 psEthHeader->h_dest[ii] =
1cac4a4b 235 pMACHeader->addr3[ii];
ceb8c5da 236 psEthHeader->h_source[ii] =
1cac4a4b 237 pMACHeader->addr2[ii];
9a0e756c
AM		 238 }
239 }
240 };
92b96797
FB		 241 *pcbHeaderSize = cbHeaderSize;
242}
243
115cac2e 244int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
45c73bb1 245 unsigned long BytesToIndicate)
92b96797 246{
45c73bb1
MP		 247 struct net_device_stats *pStats = &pDevice->stats;
248 struct sk_buff *skb;
249 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
250 struct vnt_rx_mgmt *pRxPacket = &pMgmt->sRxPacket;
1cac4a4b 251 struct ieee80211_hdr *p802_11Header;
45c73bb1 252 u8 *pbyRsr, *pbyNewRsr, *pbyRSSI, *pbyFrame;
7c65fa2a 253 u64 *pqwTSFTime;
e269fc2d 254 u32 bDeFragRx = false;
45c73bb1 255 u32 cbHeaderOffset, cbIVOffset;
cf5d170e 256 u32 FrameSize;
45c73bb1
MP		 257 u16 wEtherType = 0;
258 s32 iSANodeIndex = -1, iDANodeIndex = -1;
259 int ii;
260 u8 *pbyRxSts, *pbyRxRate, *pbySQ, *pby3SQ;
261 u32 cbHeaderSize;
262 PSKeyItem pKey = NULL;
263 u16 wRxTSC15_0 = 0;
264 u32 dwRxTSC47_16 = 0;
45c73bb1 265 /* signed long ldBm = 0; */
e269fc2d 266 int bIsWEP = false; int bExtIV = false;
cf5d170e 267 u32 dwWbkStatus;
115cac2e 268 struct vnt_rcb *pRCBIndicate = pRCB;
45c73bb1
MP		 269 u8 *pbyDAddress;
270 u16 *pwPLCP_Length;
271 u8 abyVaildRate[MAX_RATE]
272 = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
273 u16 wPLCPwithPadding;
1cac4a4b 274 struct ieee80211_hdr *pMACHeader;
e269fc2d 275 int bRxeapol_key = false;
92b96797 276
92b96797
FB		 277 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---------- RXbBulkInProcessData---\n");
278
279 skb = pRCB->skb;
280
cf5d170e
MP		 281 /* [31:16]RcvByteCount ( not include 4-byte Status ) */
282 dwWbkStatus = *((u32 *)(skb->data));
283 FrameSize = dwWbkStatus >> 16;
284 FrameSize += 4;
92b96797 285
cf5d170e
MP		 286 if (BytesToIndicate != FrameSize) {
287 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"------- WRONG Length 1\n");
9a450f9a 288 pStats->rx_frame_errors++;
e269fc2d 289 return false;
cf5d170e 290 }
92b96797 291
bd2bc4c7 292 if ((BytesToIndicate > 2372) || (BytesToIndicate <= 40)) {
92b96797 293 // Frame Size error drop this packet.
bd2bc4c7 294 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "---------- WRONG Length 2\n");
9a450f9a 295 pStats->rx_frame_errors++;
e269fc2d 296 return false;
92b96797
FB		 297 }
298
b902fbfe 299 pbyDAddress = (u8 *)(skb->data);
92b96797
FB		 300 pbyRxSts = pbyDAddress+4;
301 pbyRxRate = pbyDAddress+5;
302
303 //real Frame Size = USBFrameSize -4WbkStatus - 4RxStatus - 8TSF - 4RSR - 4SQ3 - ?Padding
304 //if SQ3 the range is 24~27, if no SQ3 the range is 20~23
305 //real Frame size in PLCPLength field.
3eaca0d2 306 pwPLCP_Length = (u16 *) (pbyDAddress + 6);
92b96797
FB		 307 //Fix hardware bug => PLCP_Length error
308 if ( ((BytesToIndicate - (*pwPLCP_Length)) > 27) ||
309 ((BytesToIndicate - (*pwPLCP_Length)) < 24) ||
310 (BytesToIndicate < (*pwPLCP_Length)) ) {
311
312 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong PLCP Length %x\n", (int) *pwPLCP_Length);
9a450f9a 313 pStats->rx_frame_errors++;
e269fc2d 314 return false;
92b96797
FB		 315 }
316 for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
317 if ( *pbyRxRate == abyVaildRate[ii] ) {
318 break;
319 }
320 }
321 if ( ii==MAX_RATE ) {
322 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Wrong RxRate %x\n",(int) *pbyRxRate);
e269fc2d 323 return false;
92b96797
FB		 324 }
325
326 wPLCPwithPadding = ( (*pwPLCP_Length / 4) + ( (*pwPLCP_Length % 4) ? 1:0 ) ) *4;
327
7c65fa2a 328 pqwTSFTime = (u64 *)(pbyDAddress + 8 + wPLCPwithPadding);
92b96797
FB		 329 if(pDevice->byBBType == BB_TYPE_11G) {
330 pby3SQ = pbyDAddress + 8 + wPLCPwithPadding + 12;
331 pbySQ = pby3SQ;
332 }
333 else {
334 pbySQ = pbyDAddress + 8 + wPLCPwithPadding + 8;
335 pby3SQ = pbySQ;
336 }
92b96797
FB		 337 pbyNewRsr = pbyDAddress + 8 + wPLCPwithPadding + 9;
338 pbyRSSI = pbyDAddress + 8 + wPLCPwithPadding + 10;
339 pbyRsr = pbyDAddress + 8 + wPLCPwithPadding + 11;
340
341 FrameSize = *pwPLCP_Length;
342
343 pbyFrame = pbyDAddress + 8;
92b96797 344
1cac4a4b 345 pMACHeader = (struct ieee80211_hdr *) pbyFrame;
92b96797
FB		 346
347//mike add: to judge if current AP is activated?
348 if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
349 (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
350 if (pMgmt->sNodeDBTable[0].bActive) {
8329419a 351 if (ether_addr_equal(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
92b96797
FB		 352 if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
353 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
354 }
355 }
356 }
357
1cac4a4b
AM		 358 if (!is_multicast_ether_addr(pMACHeader->addr1)) {
359 if (WCTLbIsDuplicate(&(pDevice->sDupRxCache), (struct ieee80211_hdr *) pbyFrame)) {
e269fc2d 360 return false;
92b96797
FB		 361 }
362
8329419a 363 if (!ether_addr_equal(pDevice->abyCurrentNetAddr, pMACHeader->addr1)) {
e269fc2d 364 return false;
92b96797
FB		 365 }
366 }
367
92b96797
FB		 368 // Use for TKIP MIC
369 s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
370
8329419a
JP		 371 if (ether_addr_equal((u8 *)pDevice->sRxEthHeader.h_source,
372 pDevice->abyCurrentNetAddr))
e269fc2d 373 return false;
92b96797
FB		 374
375 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
376 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
1cac4a4b 377 p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
92b96797 378 // get SA NodeIndex
1cac4a4b 379 if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(p802_11Header->addr2), &iSANodeIndex)) {
92b96797
FB		 380 pMgmt->sNodeDBTable[iSANodeIndex].ulLastRxJiffer = jiffies;
381 pMgmt->sNodeDBTable[iSANodeIndex].uInActiveCount = 0;
382 }
383 }
384 }
385
386 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
4e9b5e2b 387 if (s_bAPModeRxCtl(pDevice, pbyFrame, iSANodeIndex) == true) {
e269fc2d 388 return false;
92b96797
FB		 389 }
390 }
391
92b96797 392 if (IS_FC_WEP(pbyFrame)) {
e269fc2d 393 bool bRxDecryOK = false;
92b96797
FB		 394
395 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"rx WEP pkt\n");
4e9b5e2b 396 bIsWEP = true;
90f96acd
MP		 397
398 bRxDecryOK = s_bHandleRxEncryption(pDevice, pbyFrame, FrameSize,
399 pbyRsr, pbyNewRsr, &pKey, &bExtIV, &wRxTSC15_0, &dwRxTSC47_16);
92b96797
FB		 400
401 if (bRxDecryOK) {
402 if ((*pbyNewRsr & NEWRSR_DECRYPTOK) == 0) {
403 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV Fail\n");
404 if ( (pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
405 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
406 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
407 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
408 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
92b96797 409 }
e269fc2d 410 return false;
92b96797
FB		 411 }
412 } else {
413 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WEP Func Fail\n");
e269fc2d 414 return false;
92b96797
FB		 415 }
416 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_CCMP))
417 FrameSize -= 8; // Message Integrity Code
418 else
419 FrameSize -= 4; // 4 is ICV
420 }
421
92b96797
FB		 422 //
423 // RX OK
424 //
abad19d0
AM		 425 /* remove the FCS/CRC length */
426 FrameSize -= ETH_FCS_LEN;
92b96797 427
8a3d91b0 428 if ( !(*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) && // unicast address
92b96797
FB		 429 (IS_FRAGMENT_PKT((pbyFrame)))
430 ) {
431 // defragment
1cac4a4b 432 bDeFragRx = WCTLbHandleFragment(pDevice, (struct ieee80211_hdr *) (pbyFrame), FrameSize, bIsWEP, bExtIV);
92b96797
FB		 433 if (bDeFragRx) {
434 // defrag complete
435 // TODO skb, pbyFrame
436 skb = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb;
437 FrameSize = pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength;
438 pbyFrame = skb->data + 8;
439 }
440 else {
e269fc2d 441 return false;
92b96797
FB		 442 }
443 }
444
445 //
446 // Management & Control frame Handle
447 //
e269fc2d 448 if ((IS_TYPE_DATA((pbyFrame))) == false) {
92b96797
FB		 449 // Handle Control & Manage Frame
450
451 if (IS_TYPE_MGMT((pbyFrame))) {
b902fbfe
AM		 452 u8 * pbyData1;
453 u8 * pbyData2;
92b96797
FB		 454
455 pRxPacket = &(pRCB->sMngPacket);
456 pRxPacket->p80211Header = (PUWLAN_80211HDR)(pbyFrame);
457 pRxPacket->cbMPDULen = FrameSize;
458 pRxPacket->uRSSI = *pbyRSSI;
459 pRxPacket->bySQ = *pbySQ;
7c65fa2a 460 pRxPacket->qwLocalTSF = cpu_to_le64(*pqwTSFTime);
92b96797
FB		 461 if (bIsWEP) {
462 // strip IV
463 pbyData1 = WLAN_HDR_A3_DATA_PTR(pbyFrame);
464 pbyData2 = WLAN_HDR_A3_DATA_PTR(pbyFrame) + 4;
465 for (ii = 0; ii < (FrameSize - 4); ii++) {
466 *pbyData1 = *pbyData2;
467 pbyData1++;
468 pbyData2++;
469 }
470 }
471
472 pRxPacket->byRxRate = s_byGetRateIdx(*pbyRxRate);
473
474 if ( *pbyRxSts == 0 ) {
475 //Discard beacon packet which channel is 0
476 if ( (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_BEACON) ||
477 (WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) == WLAN_FSTYPE_PROBERESP) ) {
e269fc2d 478 return false;
92b96797
FB		 479 }
480 }
481 pRxPacket->byRxChannel = (*pbyRxSts) >> 2;
482
92b96797
FB		 483 //
484 // Insert the RCB in the Recv Mng list
485 //
486 EnqueueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList, pRCBIndicate);
487 pDevice->NumRecvMngList++;
e269fc2d 488 if ( bDeFragRx == false) {
92b96797
FB		 489 pRCB->Ref++;
490 }
e269fc2d 491 if (pDevice->bIsRxMngWorkItemQueued == false) {
4e9b5e2b 492 pDevice->bIsRxMngWorkItemQueued = true;
a21fc2f5 493 schedule_work(&pDevice->rx_mng_work_item);
92b96797
FB		 494 }
495
496 }
497 else {
498 // Control Frame
499 };
e269fc2d 500 return false;
92b96797
FB		 501 }
502 else {
503 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
504 //In AP mode, hw only check addr1(BSSID or RA) if equal to local MAC.
8a3d91b0 505 if ( !(*pbyRsr & RSR_BSSIDOK)) {
92b96797
FB		 506 if (bDeFragRx) {
507 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
508 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
509 pDevice->dev->name);
510 }
511 }
e269fc2d 512 return false;
92b96797
FB		 513 }
514 }
515 else {
516 // discard DATA packet while not associate || BSSID error
e269fc2d 517 if ((pDevice->bLinkPass == false) ||
8a3d91b0 518 !(*pbyRsr & RSR_BSSIDOK)) {
92b96797
FB		 519 if (bDeFragRx) {
520 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
521 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
522 pDevice->dev->name);
523 }
524 }
e269fc2d 525 return false;
92b96797
FB		 526 }
527 //mike add:station mode check eapol-key challenge--->
528 {
b902fbfe
AM		 529 u8 Protocol_Version; //802.1x Authentication
530 u8 Packet_Type; //802.1x Authentication
531 u8 Descriptor_type;
3eaca0d2 532 u16 Key_info;
92b96797
FB		 533 if (bIsWEP)
534 cbIVOffset = 8;
535 else
536 cbIVOffset = 0;
537 wEtherType = (skb->data[cbIVOffset + 8 + 24 + 6] << 8) |
538 skb->data[cbIVOffset + 8 + 24 + 6 + 1];
539 Protocol_Version = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1];
540 Packet_Type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1];
541 if (wEtherType == ETH_P_PAE) { //Protocol Type in LLC-Header
542 if(((Protocol_Version==1) ||(Protocol_Version==2)) &&
543 (Packet_Type==3)) { //802.1x OR eapol-key challenge frame receive
4e9b5e2b 544 bRxeapol_key = true;
92b96797
FB		 545 Descriptor_type = skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2];
546 Key_info = (skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+1]<<8) |skb->data[cbIVOffset + 8 + 24 + 6 + 1 +1+1+1+2+2] ;
547 if(Descriptor_type==2) { //RSN
548 // printk("WPA2_Rx_eapol-key_info<-----:%x\n",Key_info);
549 }
550 else if(Descriptor_type==254) {
551 // printk("WPA_Rx_eapol-key_info<-----:%x\n",Key_info);
552 }
553 }
554 }
555 }
556 //mike add:station mode check eapol-key challenge<---
557 }
558 }
559
92b96797
FB		 560// Data frame Handle
561
92b96797
FB		 562 if (pDevice->bEnablePSMode) {
563 if (IS_FC_MOREDATA((pbyFrame))) {
8a3d91b0 564 if (*pbyRsr & RSR_ADDROK) {
92b96797
FB		 565 //PSbSendPSPOLL((PSDevice)pDevice);
566 }
567 }
568 else {
4e9b5e2b 569 if (pMgmt->bInTIMWake == true) {
e269fc2d 570 pMgmt->bInTIMWake = false;
92b96797
FB		 571 }
572 }
9fc86028 573 }
92b96797
FB		 574
575 // Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
576 if (pDevice->bDiversityEnable && (FrameSize>50) &&
a0ad2776 577 pDevice->op_mode == NL80211_IFTYPE_STATION &&
4e9b5e2b 578 (pDevice->bLinkPass == true)) {
92b96797
FB		 579 BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
580 }
581
582 // ++++++++ For BaseBand Algorithm +++++++++++++++
583 pDevice->uCurrRSSI = *pbyRSSI;
584 pDevice->byCurrSQ = *pbySQ;
585
586 // todo
587/*
588 if ((*pbyRSSI != 0) &&
589 (pMgmt->pCurrBSS!=NULL)) {
590 RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
a0a1f61a 591 // Monitor if RSSI is too strong.
92b96797
FB		 592 pMgmt->pCurrBSS->byRSSIStatCnt++;
593 pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
594 pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
33d33e42
AM		 595 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
596 if (pMgmt->pCurrBSS->ldBmAverage[ii] != 0) {
597 pMgmt->pCurrBSS->ldBmMAX =
598 max(pMgmt->pCurrBSS->ldBmAverage[ii], ldBm);
599 }
92b96797
FB		 600 }
601 }
602*/
603
92b96797
FB		 604 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
605 if (bIsWEP) {
606 FrameSize -= 8; //MIC
607 }
608 }
609
610 //--------------------------------------------------------------------------------
611 // Soft MIC
612 if ((pKey != NULL) && (pKey->byCipherSuite == KEY_CTL_TKIP)) {
613 if (bIsWEP) {
52a7e64b
AM		 614 u32 * pdwMIC_L;
615 u32 * pdwMIC_R;
616 u32 dwMIC_Priority;
617 u32 dwMICKey0 = 0, dwMICKey1 = 0;
618 u32 dwLocalMIC_L = 0;
619 u32 dwLocalMIC_R = 0;
92b96797 620
92b96797 621 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
52a7e64b
AM		 622 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
623 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
92b96797
FB		 624 }
625 else {
626 if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) {
52a7e64b
AM		 627 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
628 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
92b96797 629 } else if ((pKey->dwKeyIndex & BIT28) == 0) {
52a7e64b
AM		 630 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[16]));
631 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[20]));
92b96797 632 } else {
52a7e64b
AM		 633 dwMICKey0 = cpu_to_le32(*(u32 *)(&pKey->abyKey[24]));
634 dwMICKey1 = cpu_to_le32(*(u32 *)(&pKey->abyKey[28]));
92b96797
FB		 635 }
636 }
637
638 MIC_vInit(dwMICKey0, dwMICKey1);
ceb8c5da 639 MIC_vAppend((u8 *)&(pDevice->sRxEthHeader.h_dest[0]), 12);
92b96797 640 dwMIC_Priority = 0;
b902fbfe 641 MIC_vAppend((u8 *)&dwMIC_Priority, 4);
92b96797 642 // 4 is Rcv buffer header, 24 is MAC Header, and 8 is IV and Ext IV.
b902fbfe 643 MIC_vAppend((u8 *)(skb->data + 8 + WLAN_HDR_ADDR3_LEN + 8),
92b96797
FB		 644 FrameSize - WLAN_HDR_ADDR3_LEN - 8);
645 MIC_vGetMIC(&dwLocalMIC_L, &dwLocalMIC_R);
646 MIC_vUnInit();
647
52a7e64b
AM		 648 pdwMIC_L = (u32 *)(skb->data + 8 + FrameSize);
649 pdwMIC_R = (u32 *)(skb->data + 8 + FrameSize + 4);
92b96797 650
92b96797 651 if ((cpu_to_le32(*pdwMIC_L) != dwLocalMIC_L) || (cpu_to_le32(*pdwMIC_R) != dwLocalMIC_R) ||
4e9b5e2b 652 (pDevice->bRxMICFail == true)) {
92b96797 653 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC comparison is fail!\n");
e269fc2d 654 pDevice->bRxMICFail = false;
92b96797
FB		 655 if (bDeFragRx) {
656 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
657 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
658 pDevice->dev->name);
659 }
660 }
92b96797 661 //send event to wpa_supplicant
4e9b5e2b 662 //if(pDevice->bWPASuppWextEnabled == true)
92b96797
FB		 663 {
664 union iwreq_data wrqu;
665 struct iw_michaelmicfailure ev;
666 int keyidx = pbyFrame[cbHeaderSize+3] >> 6; //top two-bits
667 memset(&ev, 0, sizeof(ev));
668 ev.flags = keyidx & IW_MICFAILURE_KEY_ID;
669 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
670 (pMgmt->eCurrState == WMAC_STATE_ASSOC) &&
671 (*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) {
672 ev.flags |= IW_MICFAILURE_PAIRWISE;
673 } else {
674 ev.flags |= IW_MICFAILURE_GROUP;
675 }
676
677 ev.src_addr.sa_family = ARPHRD_ETHER;
1cac4a4b 678 memcpy(ev.src_addr.sa_data, pMACHeader->addr2, ETH_ALEN);
92b96797
FB		 679 memset(&wrqu, 0, sizeof(wrqu));
680 wrqu.data.length = sizeof(ev);
681 PRINT_K("wireless_send_event--->IWEVMICHAELMICFAILURE\n");
682 wireless_send_event(pDevice->dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
683
684 }
92b96797 685
e269fc2d 686 return false;
92b96797
FB		 687
688 }
689 }
690 } //---end of SOFT MIC-----------------------------------------------------------------------
691
692 // ++++++++++ Reply Counter Check +++++++++++++
693
694 if ((pKey != NULL) && ((pKey->byCipherSuite == KEY_CTL_TKIP) ||
695 (pKey->byCipherSuite == KEY_CTL_CCMP))) {
696 if (bIsWEP) {
3eaca0d2 697 u16 wLocalTSC15_0 = 0;
52a7e64b 698 u32 dwLocalTSC47_16 = 0;
cc856e61 699 unsigned long long RSC = 0;
92b96797 700 // endian issues
cc856e61 701 RSC = *((unsigned long long *) &(pKey->KeyRSC));
3eaca0d2 702 wLocalTSC15_0 = (u16) RSC;
52a7e64b 703 dwLocalTSC47_16 = (u32) (RSC>>16);
92b96797
FB		 704
705 RSC = dwRxTSC47_16;
706 RSC <<= 16;
707 RSC += wRxTSC15_0;
7c65fa2a 708 memcpy(&(pKey->KeyRSC), &RSC, sizeof(u64));
92b96797 709
14c5ef57
MP		 710 if (pDevice->vnt_mgmt.eCurrMode == WMAC_MODE_ESS_STA &&
711 pDevice->vnt_mgmt.eCurrState == WMAC_STATE_ASSOC) {
712 /* check RSC */
92b96797
FB		 713 if ( (wRxTSC15_0 < wLocalTSC15_0) &&
714 (dwRxTSC47_16 <= dwLocalTSC47_16) &&
715 !((dwRxTSC47_16 == 0) && (dwLocalTSC47_16 == 0xFFFFFFFF))) {
716 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC is illegal~~!\n ");
92b96797
FB		 717
718 if (bDeFragRx) {
719 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
720 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
721 pDevice->dev->name);
722 }
723 }
e269fc2d 724 return false;
92b96797
FB		 725 }
726 }
727 }
728 } // ----- End of Reply Counter Check --------------------------
729
b902fbfe 730 s_vProcessRxMACHeader(pDevice, (u8 *)(skb->data+8), FrameSize, bIsWEP, bExtIV, &cbHeaderOffset);
92b96797
FB		 731 FrameSize -= cbHeaderOffset;
732 cbHeaderOffset += 8; // 8 is Rcv buffer header
733
734 // Null data, framesize = 12
735 if (FrameSize < 12)
e269fc2d 736 return false;
92b96797
FB		 737
738 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
739 if (s_bAPModeRxData(pDevice,
740 skb,
741 FrameSize,
742 cbHeaderOffset,
743 iSANodeIndex,
744 iDANodeIndex
e269fc2d 745 ) == false) {
92b96797
FB		 746
747 if (bDeFragRx) {
748 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
749 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
750 pDevice->dev->name);
751 }
752 }
e269fc2d 753 return false;
92b96797
FB		 754 }
755
756 }
757
758 skb->data += cbHeaderOffset;
759 skb->tail += cbHeaderOffset;
760 skb_put(skb, FrameSize);
761 skb->protocol=eth_type_trans(skb, skb->dev);
762 skb->ip_summed=CHECKSUM_NONE;
763 pStats->rx_bytes +=skb->len;
764 pStats->rx_packets++;
765 netif_rx(skb);
766 if (bDeFragRx) {
767 if (!device_alloc_frag_buf(pDevice, &pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx])) {
768 DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s: can not alloc more frag bufs\n",
769 pDevice->dev->name);
770 }
e269fc2d 771 return false;
92b96797
FB		 772 }
773
4e9b5e2b 774 return true;
92b96797
FB		 775}
776
45c73bb1
MP		 777static int s_bAPModeRxCtl(struct vnt_private *pDevice, u8 *pbyFrame,
778 s32 iSANodeIndex)
92b96797 779{
14c5ef57 780 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1cac4a4b 781 struct ieee80211_hdr *p802_11Header;
45c73bb1 782 CMD_STATUS Status;
92b96797 783
92b96797
FB		 784 if (IS_CTL_PSPOLL(pbyFrame) || !IS_TYPE_CONTROL(pbyFrame)) {
785
1cac4a4b 786 p802_11Header = (struct ieee80211_hdr *) (pbyFrame);
92b96797
FB		 787 if (!IS_TYPE_MGMT(pbyFrame)) {
788
789 // Data & PS-Poll packet
790 // check frame class
791 if (iSANodeIndex > 0) {
792 // frame class 3 fliter & checking
793 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_AUTH) {
794 // send deauth notification
795 // reason = (6) class 2 received from nonauth sta
796 vMgrDeAuthenBeginSta(pDevice,
797 pMgmt,
1cac4a4b 798 (u8 *)(p802_11Header->addr2),
92b96797
FB		 799 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
800 &Status
801 );
802 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 1\n");
4e9b5e2b 803 return true;
9fc86028 804 }
92b96797
FB		 805 if (pMgmt->sNodeDBTable[iSANodeIndex].eNodeState < NODE_ASSOC) {
806 // send deassoc notification
807 // reason = (7) class 3 received from nonassoc sta
808 vMgrDisassocBeginSta(pDevice,
809 pMgmt,
1cac4a4b 810 (u8 *)(p802_11Header->addr2),
92b96797
FB		 811 (WLAN_MGMT_REASON_CLASS3_NONASSOC),
812 &Status
813 );
814 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDisassocBeginSta 2\n");
4e9b5e2b 815 return true;
9fc86028 816 }
92b96797
FB		 817
818 if (pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable) {
819 // delcare received ps-poll event
820 if (IS_CTL_PSPOLL(pbyFrame)) {
4e9b5e2b 821 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
0cbd8d98
AM		 822 bScheduleCommand((void *) pDevice,
823 WLAN_CMD_RX_PSPOLL,
824 NULL);
92b96797
FB		 825 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 1\n");
826 }
827 else {
828 // check Data PS state
829 // if PW bit off, send out all PS bufferring packets.
830 if (!IS_FC_POWERMGT(pbyFrame)) {
e269fc2d 831 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
4e9b5e2b 832 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
0cbd8d98
AM		 833 bScheduleCommand((void *) pDevice,
834 WLAN_CMD_RX_PSPOLL,
835 NULL);
92b96797
FB		 836 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 2\n");
837 }
838 }
839 }
840 else {
841 if (IS_FC_POWERMGT(pbyFrame)) {
4e9b5e2b 842 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = true;
92b96797 843 // Once if STA in PS state, enable multicast bufferring
4e9b5e2b 844 pMgmt->sNodeDBTable[0].bPSEnable = true;
92b96797
FB		 845 }
846 else {
847 // clear all pending PS frame.
848 if (pMgmt->sNodeDBTable[iSANodeIndex].wEnQueueCnt > 0) {
e269fc2d 849 pMgmt->sNodeDBTable[iSANodeIndex].bPSEnable = false;
4e9b5e2b 850 pMgmt->sNodeDBTable[iSANodeIndex].bRxPSPoll = true;
0cbd8d98
AM		 851 bScheduleCommand((void *) pDevice,
852 WLAN_CMD_RX_PSPOLL,
853 NULL);
92b96797
FB		 854 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: WLAN_CMD_RX_PSPOLL 3\n");
855
856 }
857 }
858 }
859 }
860 else {
861 vMgrDeAuthenBeginSta(pDevice,
862 pMgmt,
1cac4a4b 863 (u8 *)(p802_11Header->addr2),
92b96797
FB		 864 (WLAN_MGMT_REASON_CLASS2_NONAUTH),
865 &Status
866 );
867 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: send vMgrDeAuthenBeginSta 3\n");
d6a32aa1 868 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BSSID:%pM\n",
1cac4a4b 869 p802_11Header->addr3);
d6a32aa1 870 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR2:%pM\n",
1cac4a4b 871 p802_11Header->addr2);
d6a32aa1 872 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "ADDR1:%pM\n",
1cac4a4b
AM		 873 p802_11Header->addr1);
874 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "dpc: frame_control= %x\n", p802_11Header->frame_control);
4e9b5e2b 875 return true;
92b96797
FB		 876 }
877 }
878 }
e269fc2d 879 return false;
92b96797
FB		 880
881}
882
45c73bb1
MP		 883static int s_bHandleRxEncryption(struct vnt_private *pDevice, u8 *pbyFrame,
884 u32 FrameSize, u8 *pbyRsr, u8 *pbyNewRsr, PSKeyItem *pKeyOut,
885 s32 *pbExtIV, u16 *pwRxTSC15_0, u32 *pdwRxTSC47_16)
92b96797 886{
45c73bb1
MP		 887 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
888 u32 PayloadLen = FrameSize;
889 u8 *pbyIV;
890 u8 byKeyIdx;
891 PSKeyItem pKey = NULL;
892 u8 byDecMode = KEY_CTL_WEP;
92b96797 893
92b96797
FB		 894 *pwRxTSC15_0 = 0;
895 *pdwRxTSC47_16 = 0;
896
897 pbyIV = pbyFrame + WLAN_HDR_ADDR3_LEN;
3eaca0d2
AM		 898 if ( WLAN_GET_FC_TODS(*(u16 *)pbyFrame) &&
899 WLAN_GET_FC_FROMDS(*(u16 *)pbyFrame) ) {
92b96797
FB		 900 pbyIV += 6; // 6 is 802.11 address4
901 PayloadLen -= 6;
902 }
903 byKeyIdx = (*(pbyIV+3) & 0xc0);
904 byKeyIdx >>= 6;
905 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\nKeyIdx: %d\n", byKeyIdx);
906
907 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
908 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||
909 (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) ||
910 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
911 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
912 if (((*pbyRsr & (RSR_ADDRBROAD | RSR_ADDRMULTI)) == 0) &&
913 (pMgmt->byCSSPK != KEY_CTL_NONE)) {
914 // unicast pkt use pairwise key
915 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt\n");
4e9b5e2b 916 if (KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, 0xFFFFFFFF, &pKey) == true) {
92b96797
FB		 917 if (pMgmt->byCSSPK == KEY_CTL_TKIP)
918 byDecMode = KEY_CTL_TKIP;
919 else if (pMgmt->byCSSPK == KEY_CTL_CCMP)
920 byDecMode = KEY_CTL_CCMP;
921 }
922 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"unicast pkt: %d, %p\n", byDecMode, pKey);
923 } else {
924 // use group key
925 KeybGetKey(&(pDevice->sKey), pDevice->abyBSSID, byKeyIdx, &pKey);
926 if (pMgmt->byCSSGK == KEY_CTL_TKIP)
927 byDecMode = KEY_CTL_TKIP;
928 else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
929 byDecMode = KEY_CTL_CCMP;
930 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"group pkt: %d, %d, %p\n", byKeyIdx, byDecMode, pKey);
931 }
932 }
933 // our WEP only support Default Key
934 if (pKey == NULL) {
935 // use default group key
936 KeybGetKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, byKeyIdx, &pKey);
937 if (pMgmt->byCSSGK == KEY_CTL_TKIP)
938 byDecMode = KEY_CTL_TKIP;
939 else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
940 byDecMode = KEY_CTL_CCMP;
941 }
942 *pKeyOut = pKey;
943
944 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"AES:%d %d %d\n", pMgmt->byCSSPK, pMgmt->byCSSGK, byDecMode);
945
946 if (pKey == NULL) {
947 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey == NULL\n");
e269fc2d 948 return false;
92b96797
FB		 949 }
950 if (byDecMode != pKey->byCipherSuite) {
92b96797 951 *pKeyOut = NULL;
e269fc2d 952 return false;
92b96797
FB		 953 }
954 if (byDecMode == KEY_CTL_WEP) {
955 // handle WEP
956 if ((pDevice->byLocalID <= REV_ID_VT3253_A1) ||
4e9b5e2b 957 (((PSKeyTable)(pKey->pvKeyTable))->bSoftWEP == true)) {
92b96797
FB		 958 // Software WEP
959 // 1. 3253A
960 // 2. WEP 256
961
962 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 4 + 4); // 24 is 802.11 header,4 is IV, 4 is crc
3e362598
JL		 963 memcpy(pDevice->abyPRNG, pbyIV, 3);
964 memcpy(pDevice->abyPRNG + 3, pKey->abyKey, pKey->uKeyLength);
92b96797
FB		 965 rc4_init(&pDevice->SBox, pDevice->abyPRNG, pKey->uKeyLength + 3);
966 rc4_encrypt(&pDevice->SBox, pbyIV+4, pbyIV+4, PayloadLen);
967
968 if (ETHbIsBufferCrc32Ok(pbyIV+4, PayloadLen)) {
969 *pbyNewRsr |= NEWRSR_DECRYPTOK;
970 }
971 }
972 } else if ((byDecMode == KEY_CTL_TKIP) ||
973 (byDecMode == KEY_CTL_CCMP)) {
974 // TKIP/AES
975
976 PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
52a7e64b 977 *pdwRxTSC47_16 = cpu_to_le32(*(u32 *)(pbyIV + 4));
b4dc03af 978 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
92b96797
FB		 979 if (byDecMode == KEY_CTL_TKIP) {
980 *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
981 } else {
3eaca0d2 982 *pwRxTSC15_0 = cpu_to_le16(*(u16 *)pbyIV);
92b96797
FB		 983 }
984 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TSC0_15: %x\n", *pwRxTSC15_0);
985
986 if ((byDecMode == KEY_CTL_TKIP) &&
987 (pDevice->byLocalID <= REV_ID_VT3253_A1)) {
988 // Software TKIP
989 // 1. 3253 A
1cac4a4b
AM		 990 struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *) (pbyFrame);
991 TKIPvMixKey(pKey->abyKey, pMACHeader->addr2, *pwRxTSC15_0, *pdwRxTSC47_16, pDevice->abyPRNG);
92b96797
FB		 992 rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
993 rc4_encrypt(&pDevice->SBox, pbyIV+8, pbyIV+8, PayloadLen);
994 if (ETHbIsBufferCrc32Ok(pbyIV+8, PayloadLen)) {
995 *pbyNewRsr |= NEWRSR_DECRYPTOK;
996 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV OK!\n");
997 } else {
998 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ICV FAIL!!!\n");
999 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PayloadLen = %d\n", PayloadLen);
1000 }
1001 }
1002 }// end of TKIP/AES
1003
1004 if ((*(pbyIV+3) & 0x20) != 0)
4e9b5e2b
AM		 1005 *pbExtIV = true;
1006 return true;
92b96797
FB		 1007}
1008
45c73bb1
MP		 1009static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
1010 u32 FrameSize, u32 cbHeaderOffset, s32 iSANodeIndex, s32 iDANodeIndex)
92b96797 1011{
45c73bb1
MP		 1012 struct sk_buff *skbcpy;
1013 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
e269fc2d
AM		 1014 int bRelayAndForward = false;
1015 int bRelayOnly = false;
45c73bb1
MP		 1016 u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
1017 u16 wAID;
92b96797 1018
92b96797 1019 if (FrameSize > CB_MAX_BUF_SIZE)
e269fc2d 1020 return false;
92b96797 1021 // check DA
b902fbfe 1022 if (is_multicast_ether_addr((u8 *)(skb->data+cbHeaderOffset))) {
92b96797
FB		 1023 if (pMgmt->sNodeDBTable[0].bPSEnable) {
1024
29263661 1025 skbcpy = netdev_alloc_skb(pDevice->dev, pDevice->rx_buf_sz);
92b96797
FB		 1026
1027 // if any node in PS mode, buffer packet until DTIM.
1028 if (skbcpy == NULL) {
1029 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "relay multicast no skb available \n");
1030 }
1031 else {
92b96797
FB		 1032 skbcpy->len = FrameSize;
1033 memcpy(skbcpy->data, skb->data+cbHeaderOffset, FrameSize);
1034 skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skbcpy);
1035 pMgmt->sNodeDBTable[0].wEnQueueCnt++;
1036 // set tx map
1037 pMgmt->abyPSTxMap[0] |= byMask[0];
1038 }
1039 }
1040 else {
4e9b5e2b 1041 bRelayAndForward = true;
92b96797
FB		 1042 }
1043 }
1044 else {
1045 // check if relay
b902fbfe 1046 if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(skb->data+cbHeaderOffset), &iDANodeIndex)) {
92b96797
FB		 1047 if (pMgmt->sNodeDBTable[iDANodeIndex].eNodeState >= NODE_ASSOC) {
1048 if (pMgmt->sNodeDBTable[iDANodeIndex].bPSEnable) {
1049 // queue this skb until next PS tx, and then release.
1050
1051 skb->data += cbHeaderOffset;
1052 skb->tail += cbHeaderOffset;
1053 skb_put(skb, FrameSize);
1054 skb_queue_tail(&pMgmt->sNodeDBTable[iDANodeIndex].sTxPSQueue, skb);
1055
1056 pMgmt->sNodeDBTable[iDANodeIndex].wEnQueueCnt++;
1057 wAID = pMgmt->sNodeDBTable[iDANodeIndex].wAID;
1058 pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
1059 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "relay: index= %d, pMgmt->abyPSTxMap[%d]= %d\n",
1060 iDANodeIndex, (wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
4e9b5e2b 1061 return true;
92b96797
FB		 1062 }
1063 else {
4e9b5e2b 1064 bRelayOnly = true;
92b96797
FB		 1065 }
1066 }
9fc86028 1067 }
92b96797
FB		 1068 }
1069
1070 if (bRelayOnly || bRelayAndForward) {
1071 // relay this packet right now
1072 if (bRelayAndForward)
1073 iDANodeIndex = 0;
1074
1075 if ((pDevice->uAssocCount > 1) && (iDANodeIndex >= 0)) {
b902fbfe 1076 bRelayPacketSend(pDevice, (u8 *) (skb->data + cbHeaderOffset),
cc856e61 1077 FrameSize, (unsigned int) iDANodeIndex);
92b96797
FB		 1078 }
1079
1080 if (bRelayOnly)
e269fc2d 1081 return false;
92b96797
FB		 1082 }
1083 // none associate, don't forward
1084 if (pDevice->uAssocCount == 0)
e269fc2d 1085 return false;
92b96797 1086
4e9b5e2b 1087 return true;
92b96797
FB		 1088}
1089
81d720d3 1090void RXvWorkItem(struct work_struct *work)
92b96797 1091{
49d73a98 1092 struct vnt_private *priv =
81d720d3 1093 container_of(work, struct vnt_private, read_work_item);
49d73a98
MP		 1094 int status;
1095 struct vnt_rcb *rcb = NULL;
92b96797 1096
49d73a98 1097 if (priv->Flags & fMP_DISCONNECTED)
17f3ced0
MP		 1098 return;
1099
49d73a98 1100 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Polling Thread\n");
731047f9 1101
49d73a98
MP		 1102 spin_lock_irq(&priv->lock);
1103
1104 while ((priv->Flags & fMP_POST_READS) && MP_IS_READY(priv) &&
1105 (priv->NumRecvFreeList != 0)) {
1106 rcb = priv->FirstRecvFreeList;
1107
1108 priv->NumRecvFreeList--;
1109
1110 DequeueRCB(priv->FirstRecvFreeList, priv->LastRecvFreeList);
1111
1112 status = PIPEnsBulkInUsbRead(priv, rcb);
1113 }
1114
1115 priv->bIsRxWorkItemQueued = false;
92b96797 1116
49d73a98 1117 spin_unlock_irq(&priv->lock);
92b96797
FB		 1118}
1119
5a30e0b6 1120void RXvFreeRCB(struct vnt_rcb *rcb, int re_alloc_skb)
92b96797 1121{
5a30e0b6 1122 struct vnt_private *priv = rcb->pDevice;
92b96797 1123
5a30e0b6 1124 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->RXvFreeRCB\n");
92b96797 1125
5a30e0b6
MP		 1126 if (re_alloc_skb == false) {
1127 kfree_skb(rcb->skb);
1128 re_alloc_skb = true;
28044e01
MP		 1129 }
1130
5a30e0b6 1131 if (re_alloc_skb == true) {
29263661 1132 rcb->skb = netdev_alloc_skb(priv->dev, priv->rx_buf_sz);
5a30e0b6 1133 /* TODO error handling */
29263661 1134 if (!rcb->skb) {
5a30e0b6
MP		 1135 DBG_PRT(MSG_LEVEL_ERR, KERN_ERR
1136 " Failed to re-alloc rx skb\n");
5a30e0b6
MP		 1137 }
1138 }
92b96797 1139
5a30e0b6
MP		 1140 /* Insert the RCB back in the Recv free list */
1141 EnqueueRCB(priv->FirstRecvFreeList, priv->LastRecvFreeList, rcb);
1142 priv->NumRecvFreeList++;
92b96797 1143
5a30e0b6
MP		 1144 if ((priv->Flags & fMP_POST_READS) && MP_IS_READY(priv) &&
1145 (priv->bIsRxWorkItemQueued == false)) {
1146 priv->bIsRxWorkItemQueued = true;
1147 schedule_work(&priv->read_work_item);
1148 }
1149
1150 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",
1151 priv->NumRecvFreeList, priv->NumRecvMngList);
92b96797
FB		 1152}
1153
a21fc2f5 1154void RXvMngWorkItem(struct work_struct *work)
92b96797 1155{
a21fc2f5
MP		 1156 struct vnt_private *pDevice =
1157 container_of(work, struct vnt_private, rx_mng_work_item);
115cac2e 1158 struct vnt_rcb *pRCB = NULL;
45c73bb1 1159 struct vnt_rx_mgmt *pRxPacket;
e269fc2d 1160 int bReAllocSkb = false;
e03ce839 1161 unsigned long flags;
92b96797 1162
17f3ced0
MP		 1163 if (pDevice->Flags & fMP_DISCONNECTED)
1164 return;
1165
92b96797
FB		 1166 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Mng Thread\n");
1167
92b96797
FB		 1168 while (pDevice->NumRecvMngList!=0)
1169 {
e03ce839
MP		 1170 spin_lock_irqsave(&pDevice->lock, flags);
1171
92b96797
FB		 1172 pRCB = pDevice->FirstRecvMngList;
1173 pDevice->NumRecvMngList--;
1174 DequeueRCB(pDevice->FirstRecvMngList, pDevice->LastRecvMngList);
e03ce839
MP		 1175
1176 spin_unlock_irqrestore(&pDevice->lock, flags);
1177
92b96797
FB		 1178 if(!pRCB){
1179 break;
1180 }
92b96797 1181 pRxPacket = &(pRCB->sMngPacket);
14c5ef57 1182 vMgrRxManagePacket(pDevice, &pDevice->vnt_mgmt, pRxPacket);
92b96797 1183 pRCB->Ref--;
e03ce839
MP		 1184 if (pRCB->Ref == 0) {
1185 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeMng %d %d\n",
1186 pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
1187
1188 spin_lock_irqsave(&pDevice->lock, flags);
1189
1190 RXvFreeRCB(pRCB, bReAllocSkb);
1191
1192 spin_unlock_irqrestore(&pDevice->lock, flags);
1193 } else {
92b96797
FB		 1194 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rx Mng Only we have the right to free RCB\n");
1195 }
1196 }
1197
e269fc2d 1198 pDevice->bIsRxMngWorkItemQueued = false;
92b96797
FB		 1199}
1200
Linux kernel - Deliverables
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