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4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 | /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * * File: wmgr.c * * Purpose: Handles the 802.11 management functions * * Author: Lyndon Chen * * Date: May 8, 2002 * * Functions: * nsMgrObjectInitial - Initialize Management Objet data structure * vMgrObjectReset - Reset Management Object data structure * vMgrAssocBeginSta - Start associate function * vMgrReAssocBeginSta - Start reassociate function * vMgrDisassocBeginSta - Start disassociate function * s_vMgrRxAssocRequest - Handle Rcv associate_request * s_vMgrRxAssocResponse - Handle Rcv associate_response * vMrgAuthenBeginSta - Start authentication function * vMgrDeAuthenDeginSta - Start deauthentication function * s_vMgrRxAuthentication - Handle Rcv authentication * s_vMgrRxAuthenSequence_1 - Handle Rcv authentication sequence 1 * s_vMgrRxAuthenSequence_2 - Handle Rcv authentication sequence 2 * s_vMgrRxAuthenSequence_3 - Handle Rcv authentication sequence 3 * s_vMgrRxAuthenSequence_4 - Handle Rcv authentication sequence 4 * s_vMgrRxDisassociation - Handle Rcv disassociation * s_vMgrRxBeacon - Handle Rcv Beacon * vMgrCreateOwnIBSS - Create ad_hoc IBSS or AP BSS * vMgrJoinBSSBegin - Join BSS function * s_vMgrSynchBSS - Synch & adopt BSS parameters * s_MgrMakeBeacon - Create Baecon frame * s_MgrMakeProbeResponse - Create Probe Response frame * s_MgrMakeAssocRequest - Create Associate Request frame * s_MgrMakeReAssocRequest - Create ReAssociate Request frame * s_vMgrRxProbeResponse - Handle Rcv probe_response * s_vMrgRxProbeRequest - Handle Rcv probe_request * bMgrPrepareBeaconToSend - Prepare Beacon frame * s_vMgrLogStatus - Log 802.11 Status * vMgrRxManagePacket - Rcv management frame dispatch function * s_vMgrFormatTIM- Assembler TIM field of beacon * vMgrTimerInit- Initial 1-sec and command call back funtions * * Revision History: * */ #include "tmacro.h" #include "desc.h" #include "device.h" #include "card.h" #include "80211hdr.h" #include "80211mgr.h" #include "wmgr.h" #include "wcmd.h" #include "mac.h" #include "bssdb.h" #include "power.h" #include "datarate.h" #include "baseband.h" #include "rxtx.h" #include "wpa.h" #include "rf.h" #include "iowpa.h" #include "control.h" #include "rndis.h" static int msglevel =MSG_LEVEL_INFO; //static int msglevel =MSG_LEVEL_DEBUG; static int ChannelExceedZoneType(struct vnt_private *, u8 byCurrChannel); /* Association/diassociation functions */ static struct vnt_tx_mgmt *s_MgrMakeAssocRequest(struct vnt_private *, struct vnt_manager *pMgmt, u8 *pDAddr, u16 wCurrCapInfo, u16 wListenInterval, PWLAN_IE_SSID pCurrSSID, PWLAN_IE_SUPP_RATES pCurrRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates); static void s_vMgrRxAssocRequest(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, u32 uNodeIndex); static struct vnt_tx_mgmt *s_MgrMakeReAssocRequest(struct vnt_private *, struct vnt_manager *pMgmt, u8 *pDAddr, u16 wCurrCapInfo, u16 wListenInterval, PWLAN_IE_SSID pCurrSSID, PWLAN_IE_SUPP_RATES pCurrRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates); static void s_vMgrRxAssocResponse(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, int bReAssocType); static void s_vMgrRxDisassociation(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket); /* Authentication/deauthen functions */ static void s_vMgrRxAuthenSequence_1(struct vnt_private *, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame); static void s_vMgrRxAuthenSequence_2(struct vnt_private *, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame); static void s_vMgrRxAuthenSequence_3(struct vnt_private *, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame); static void s_vMgrRxAuthenSequence_4(struct vnt_private *, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame); static void s_vMgrRxAuthentication(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket); static void s_vMgrRxDeauthentication(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket); /* Scan functions * probe request/response functions */ static void s_vMgrRxProbeRequest(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket); static void s_vMgrRxProbeResponse(struct vnt_private *, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket); /* beacon functions */ static void s_vMgrRxBeacon(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, int bInScan); static void s_vMgrFormatTIM(struct vnt_manager *pMgmt, PWLAN_IE_TIM pTIM); static struct vnt_tx_mgmt *s_MgrMakeBeacon(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wCurrBeaconPeriod, u32 uCurrChannel, u16 wCurrATIMWinodw, PWLAN_IE_SSID pCurrSSID, u8 *pCurrBSSID, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates); /* Association response */ static struct vnt_tx_mgmt *s_MgrMakeAssocResponse(struct vnt_private *, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wAssocStatus, u16 wAssocAID, u8 *pDstAddr, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates); /* ReAssociation response */ static struct vnt_tx_mgmt *s_MgrMakeReAssocResponse(struct vnt_private *, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wAssocStatus, u16 wAssocAID, u8 *pDstAddr, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates); /* Probe response */ static struct vnt_tx_mgmt *s_MgrMakeProbeResponse(struct vnt_private *, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wCurrBeaconPeriod, u32 uCurrChannel, u16 wCurrATIMWinodw, u8 *pDstAddr, PWLAN_IE_SSID pCurrSSID, u8 *pCurrBSSID, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates, u8 byPHYType); /* received status */ static void s_vMgrLogStatus(struct vnt_manager *pMgmt, u16 wStatus); static void s_vMgrSynchBSS(struct vnt_private *, u32 uBSSMode, PKnownBSS pCurr, PCMD_STATUS pStatus); static bool s_bCipherMatch ( PKnownBSS pBSSNode, NDIS_802_11_ENCRYPTION_STATUS EncStatus, u8 * pbyCCSPK, u8 * pbyCCSGK ); static void Encyption_Rebuild(struct vnt_private *, PKnownBSS pCurr); /*+ * * Routine Description: * Allocates and initializes the Management object. * * Return Value: * Ndis_staus. * -*/ void vMgrObjectInit(struct vnt_private *pDevice) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; int ii; pMgmt->pbyPSPacketPool = &pMgmt->byPSPacketPool[0]; pMgmt->pbyMgmtPacketPool = &pMgmt->byMgmtPacketPool[0]; pMgmt->uCurrChannel = pDevice->uChannel; for (ii = 0; ii < WLAN_BSSID_LEN; ii++) pMgmt->abyDesireBSSID[ii] = 0xFF; pMgmt->sAssocInfo.AssocInfo.Length = sizeof(NDIS_802_11_ASSOCIATION_INFORMATION); //memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN +1); pMgmt->byCSSPK = KEY_CTL_NONE; pMgmt->byCSSGK = KEY_CTL_NONE; pMgmt->wIBSSBeaconPeriod = DEFAULT_IBSS_BI; BSSvClearBSSList((void *) pDevice, false); init_timer(&pMgmt->sTimerSecondCallback); pMgmt->sTimerSecondCallback.data = (unsigned long)pDevice; pMgmt->sTimerSecondCallback.function = (TimerFunction)BSSvSecondCallBack; pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ); init_timer(&pDevice->sTimerCommand); pDevice->sTimerCommand.data = (unsigned long)pDevice; pDevice->sTimerCommand.function = (TimerFunction)vRunCommand; pDevice->sTimerCommand.expires = RUN_AT(HZ); init_timer(&pDevice->sTimerTxData); pDevice->sTimerTxData.data = (unsigned long)pDevice; pDevice->sTimerTxData.function = (TimerFunction)BSSvSecondTxData; pDevice->sTimerTxData.expires = RUN_AT(10*HZ); //10s callback pDevice->fTxDataInSleep = false; pDevice->IsTxDataTrigger = false; pDevice->nTxDataTimeCout = 0; pDevice->cbFreeCmdQueue = CMD_Q_SIZE; pDevice->uCmdDequeueIdx = 0; pDevice->uCmdEnqueueIdx = 0; pDevice->eCommandState = WLAN_CMD_IDLE; pDevice->bCmdRunning = false; pDevice->bCmdClear = false; return; } /*+ * * Routine Description: * Start the station association procedure. Namely, send an * association request frame to the AP. * * Return Value: * None. * -*/ void vMgrAssocBeginSta(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PCMD_STATUS pStatus) { struct vnt_tx_mgmt *pTxPacket; pMgmt->wCurrCapInfo = 0; pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_ESS(1); if (pDevice->bEncryptionEnable) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_PRIVACY(1); } // always allow receive short preamble //if (pDevice->byPreambleType == 1) { // pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); //} pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); if (pMgmt->wListenInterval == 0) pMgmt->wListenInterval = 1; // at least one. // ERP Phy (802.11g) should support short preamble. if (pMgmt->eCurrentPHYMode == PHY_TYPE_11G) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); if (pDevice->bShortSlotTime == true) pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTSLOTTIME(1); } else if (pMgmt->eCurrentPHYMode == PHY_TYPE_11B) { if (pDevice->byPreambleType == 1) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); } } if (pMgmt->b11hEnable == true) pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SPECTRUMMNG(1); // build an assocreq frame and send it pTxPacket = s_MgrMakeAssocRequest ( pDevice, pMgmt, pMgmt->abyCurrBSSID, pMgmt->wCurrCapInfo, pMgmt->wListenInterval, (PWLAN_IE_SSID)pMgmt->abyCurrSSID, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates ); if (pTxPacket != NULL ){ // send the frame *pStatus = csMgmt_xmit(pDevice, pTxPacket); if (*pStatus == CMD_STATUS_PENDING) { pMgmt->eCurrState = WMAC_STATE_ASSOCPENDING; *pStatus = CMD_STATUS_SUCCESS; } } else *pStatus = CMD_STATUS_RESOURCES; return ; } /*+ * * Routine Description: * Start the station re-association procedure. * * Return Value: * None. * -*/ void vMgrReAssocBeginSta(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PCMD_STATUS pStatus) { struct vnt_tx_mgmt *pTxPacket; pMgmt->wCurrCapInfo = 0; pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_ESS(1); if (pDevice->bEncryptionEnable) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_PRIVACY(1); } //if (pDevice->byPreambleType == 1) { // pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); //} pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); if (pMgmt->wListenInterval == 0) pMgmt->wListenInterval = 1; // at least one. // ERP Phy (802.11g) should support short preamble. if (pMgmt->eCurrentPHYMode == PHY_TYPE_11G) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); if (pDevice->bShortSlotTime == true) pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTSLOTTIME(1); } else if (pMgmt->eCurrentPHYMode == PHY_TYPE_11B) { if (pDevice->byPreambleType == 1) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); } } if (pMgmt->b11hEnable == true) pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SPECTRUMMNG(1); pTxPacket = s_MgrMakeReAssocRequest ( pDevice, pMgmt, pMgmt->abyCurrBSSID, pMgmt->wCurrCapInfo, pMgmt->wListenInterval, (PWLAN_IE_SSID)pMgmt->abyCurrSSID, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates ); if (pTxPacket != NULL ){ // send the frame *pStatus = csMgmt_xmit(pDevice, pTxPacket); if (*pStatus != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Reassociation tx failed.\n"); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Reassociation tx sending.\n"); } } return ; } /*+ * * Routine Description: * Send an dis-association request frame to the AP. * * Return Value: * None. * -*/ void vMgrDisassocBeginSta(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u8 *abyDestAddress, u16 wReason, PCMD_STATUS pStatus) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_DISASSOC sFrame; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_DISASSOC_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_DISASSOC_FR_MAXLEN; // format fixed field frame structure vMgrEncodeDisassociation(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_DISASSOC) )); memcpy( sFrame.pHdr->sA3.abyAddr1, abyDestAddress, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); // Set reason code *(sFrame.pwReason) = cpu_to_le16(wReason); pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; // send the frame *pStatus = csMgmt_xmit(pDevice, pTxPacket); if (*pStatus == CMD_STATUS_PENDING) { pMgmt->eCurrState = WMAC_STATE_IDLE; *pStatus = CMD_STATUS_SUCCESS; } return; } /*+ * * Routine Description:(AP function) * Handle incoming station association request frames. * * Return Value: * None. * -*/ static void s_vMgrRxAssocRequest(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, u32 uNodeIndex) { WLAN_FR_ASSOCREQ sFrame; CMD_STATUS Status; struct vnt_tx_mgmt *pTxPacket; u16 wAssocStatus = 0; u16 wAssocAID = 0; u32 uRateLen = WLAN_RATES_MAXLEN; u8 abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1]; u8 abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1]; if (pMgmt->eCurrMode != WMAC_MODE_ESS_AP) return; // node index not found if (!uNodeIndex) return; //check if node is authenticated //decode the frame memset(&sFrame, 0, sizeof(WLAN_FR_ASSOCREQ)); memset(abyCurrSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); memset(abyCurrExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeAssocRequest(&sFrame); if (pMgmt->sNodeDBTable[uNodeIndex].eNodeState >= NODE_AUTH) { pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_ASSOC; pMgmt->sNodeDBTable[uNodeIndex].wCapInfo = cpu_to_le16(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].wListenInterval = cpu_to_le16(*sFrame.pwListenInterval); pMgmt->sNodeDBTable[uNodeIndex].bPSEnable = WLAN_GET_FC_PWRMGT(sFrame.pHdr->sA3.wFrameCtl) ? true : false; // Todo: check sta basic rate, if ap can't support, set status code if (pDevice->byBBType == BB_TYPE_11B) { uRateLen = WLAN_RATES_MAXLEN_11B; } abyCurrSuppRates[0] = WLAN_EID_SUPP_RATES; abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrSuppRates, uRateLen); abyCurrExtSuppRates[0] = WLAN_EID_EXTSUPP_RATES; if (pDevice->byBBType == BB_TYPE_11G) { abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pExtSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrExtSuppRates, uRateLen); } else { abyCurrExtSuppRates[1] = 0; } RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrExtSuppRates, false, // do not change our basic rate &(pMgmt->sNodeDBTable[uNodeIndex].wMaxBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].wSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopCCKBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopOFDMBasicRate) ); // set max tx rate pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate = pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate; // Todo: check sta preamble, if ap can't support, set status code pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].wAID = (u16)uNodeIndex; wAssocStatus = WLAN_MGMT_STATUS_SUCCESS; wAssocAID = (u16)uNodeIndex; // check if ERP support if(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate > RATE_11M) pMgmt->sNodeDBTable[uNodeIndex].bERPExist = true; if (pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate <= RATE_11M) { // B only STA join pDevice->bProtectMode = true; pDevice->bNonERPPresent = true; } if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble == false) { pDevice->bBarkerPreambleMd = true; } DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Associate AID= %d \n", wAssocAID); DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "MAC=%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X \n", sFrame.pHdr->sA3.abyAddr2[0], sFrame.pHdr->sA3.abyAddr2[1], sFrame.pHdr->sA3.abyAddr2[2], sFrame.pHdr->sA3.abyAddr2[3], sFrame.pHdr->sA3.abyAddr2[4], sFrame.pHdr->sA3.abyAddr2[5] ) ; DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Max Support rate = %d \n", pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate); } // assoc response reply.. pTxPacket = s_MgrMakeAssocResponse ( pDevice, pMgmt, pMgmt->wCurrCapInfo, wAssocStatus, wAssocAID, sFrame.pHdr->sA3.abyAddr2, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates ); if (pTxPacket != NULL ){ if (pDevice->bEnableHostapd) { return; } /* send the frame */ Status = csMgmt_xmit(pDevice, pTxPacket); if (Status != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Assoc response tx failed\n"); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Assoc response tx sending..\n"); } } return; } /*+ * * Description:(AP function) * Handle incoming station re-association request frames. * * Parameters: * In: * pMgmt - Management Object structure * pRxPacket - Received Packet * Out: * none * * Return Value: None. * -*/ static void s_vMgrRxReAssocRequest(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, u32 uNodeIndex) { WLAN_FR_REASSOCREQ sFrame; CMD_STATUS Status; struct vnt_tx_mgmt *pTxPacket; u16 wAssocStatus = 0; u16 wAssocAID = 0; u32 uRateLen = WLAN_RATES_MAXLEN; u8 abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1]; u8 abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1]; if (pMgmt->eCurrMode != WMAC_MODE_ESS_AP) return; // node index not found if (!uNodeIndex) return; //check if node is authenticated //decode the frame memset(&sFrame, 0, sizeof(WLAN_FR_REASSOCREQ)); sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeReassocRequest(&sFrame); if (pMgmt->sNodeDBTable[uNodeIndex].eNodeState >= NODE_AUTH) { pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_ASSOC; pMgmt->sNodeDBTable[uNodeIndex].wCapInfo = cpu_to_le16(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].wListenInterval = cpu_to_le16(*sFrame.pwListenInterval); pMgmt->sNodeDBTable[uNodeIndex].bPSEnable = WLAN_GET_FC_PWRMGT(sFrame.pHdr->sA3.wFrameCtl) ? true : false; // Todo: check sta basic rate, if ap can't support, set status code if (pDevice->byBBType == BB_TYPE_11B) { uRateLen = WLAN_RATES_MAXLEN_11B; } abyCurrSuppRates[0] = WLAN_EID_SUPP_RATES; abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrSuppRates, uRateLen); abyCurrExtSuppRates[0] = WLAN_EID_EXTSUPP_RATES; if (pDevice->byBBType == BB_TYPE_11G) { abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pExtSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrExtSuppRates, uRateLen); } else { abyCurrExtSuppRates[1] = 0; } RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)abyCurrExtSuppRates, false, // do not change our basic rate &(pMgmt->sNodeDBTable[uNodeIndex].wMaxBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].wSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopCCKBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopOFDMBasicRate) ); // set max tx rate pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate = pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate; // Todo: check sta preamble, if ap can't support, set status code pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].wAID = (u16)uNodeIndex; wAssocStatus = WLAN_MGMT_STATUS_SUCCESS; wAssocAID = (u16)uNodeIndex; // if suppurt ERP if(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate > RATE_11M) pMgmt->sNodeDBTable[uNodeIndex].bERPExist = true; if (pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate <= RATE_11M) { // B only STA join pDevice->bProtectMode = true; pDevice->bNonERPPresent = true; } if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble == false) { pDevice->bBarkerPreambleMd = true; } DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Rx ReAssociate AID= %d \n", wAssocAID); DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "MAC=%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X \n", sFrame.pHdr->sA3.abyAddr2[0], sFrame.pHdr->sA3.abyAddr2[1], sFrame.pHdr->sA3.abyAddr2[2], sFrame.pHdr->sA3.abyAddr2[3], sFrame.pHdr->sA3.abyAddr2[4], sFrame.pHdr->sA3.abyAddr2[5] ) ; DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Max Support rate = %d \n", pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate); } // assoc response reply.. pTxPacket = s_MgrMakeReAssocResponse ( pDevice, pMgmt, pMgmt->wCurrCapInfo, wAssocStatus, wAssocAID, sFrame.pHdr->sA3.abyAddr2, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates ); if (pTxPacket != NULL ){ /* send the frame */ if (pDevice->bEnableHostapd) { return; } Status = csMgmt_xmit(pDevice, pTxPacket); if (Status != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:ReAssoc response tx failed\n"); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:ReAssoc response tx sending..\n"); } } return; } /*+ * * Routine Description: * Handle incoming association response frames. * * Return Value: * None. * -*/ static void s_vMgrRxAssocResponse(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, int bReAssocType) { WLAN_FR_ASSOCRESP sFrame; PWLAN_IE_SSID pItemSSID; u8 *pbyIEs; if (pMgmt->eCurrState == WMAC_STATE_ASSOCPENDING || pMgmt->eCurrState == WMAC_STATE_ASSOC) { sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; // decode the frame vMgrDecodeAssocResponse(&sFrame); if ((sFrame.pwCapInfo == NULL) || (sFrame.pwStatus == NULL) || (sFrame.pwAid == NULL) || (sFrame.pSuppRates == NULL)) { return; } pMgmt->sAssocInfo.AssocInfo.ResponseFixedIEs.Capabilities = *(sFrame.pwCapInfo); pMgmt->sAssocInfo.AssocInfo.ResponseFixedIEs.StatusCode = *(sFrame.pwStatus); pMgmt->sAssocInfo.AssocInfo.ResponseFixedIEs.AssociationId = *(sFrame.pwAid); pMgmt->sAssocInfo.AssocInfo.AvailableResponseFixedIEs |= 0x07; pMgmt->sAssocInfo.AssocInfo.ResponseIELength = sFrame.len - 24 - 6; pMgmt->sAssocInfo.AssocInfo.OffsetResponseIEs = pMgmt->sAssocInfo.AssocInfo.OffsetRequestIEs + pMgmt->sAssocInfo.AssocInfo.RequestIELength; pbyIEs = pMgmt->sAssocInfo.abyIEs; pbyIEs += pMgmt->sAssocInfo.AssocInfo.RequestIELength; memcpy(pbyIEs, (sFrame.pBuf + 24 +6), pMgmt->sAssocInfo.AssocInfo.ResponseIELength); // save values and set current BSS state if (cpu_to_le16((*(sFrame.pwStatus))) == WLAN_MGMT_STATUS_SUCCESS ){ // set AID pMgmt->wCurrAID = cpu_to_le16((*(sFrame.pwAid))); if ( (pMgmt->wCurrAID >> 14) != (BIT0 | BIT1) ) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "AID from AP, has two msb clear.\n"); } DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Association Successful, AID=%d.\n", pMgmt->wCurrAID & ~(BIT14|BIT15)); pMgmt->eCurrState = WMAC_STATE_ASSOC; BSSvUpdateAPNode((void *) pDevice, sFrame.pwCapInfo, sFrame.pSuppRates, sFrame.pExtSuppRates); pItemSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID; DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Link with AP(SSID): %s\n", pItemSSID->abySSID); pDevice->bLinkPass = true; ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_INTER); //if(pDevice->bWPASuppWextEnabled == true) { u8 buf[512]; size_t len; union iwreq_data wrqu; int we_event; memset(buf, 0, 512); len = pMgmt->sAssocInfo.AssocInfo.RequestIELength; if(len) { memcpy(buf, pMgmt->sAssocInfo.abyIEs, len); memset(&wrqu, 0, sizeof (wrqu)); wrqu.data.length = len; we_event = IWEVASSOCREQIE; PRINT_K("wireless_send_event--->IWEVASSOCREQIE\n"); wireless_send_event(pDevice->dev, we_event, &wrqu, buf); } memset(buf, 0, 512); len = pMgmt->sAssocInfo.AssocInfo.ResponseIELength; if(len) { memcpy(buf, pbyIEs, len); memset(&wrqu, 0, sizeof (wrqu)); wrqu.data.length = len; we_event = IWEVASSOCRESPIE; PRINT_K("wireless_send_event--->IWEVASSOCRESPIE\n"); wireless_send_event(pDevice->dev, we_event, &wrqu, buf); } memset(&wrqu, 0, sizeof (wrqu)); memcpy(wrqu.ap_addr.sa_data, &pMgmt->abyCurrBSSID[0], ETH_ALEN); wrqu.ap_addr.sa_family = ARPHRD_ETHER; PRINT_K("wireless_send_event--->SIOCGIWAP(associated)\n"); wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL); } } else { if (bReAssocType) { pMgmt->eCurrState = WMAC_STATE_IDLE; } else { // jump back to the auth state and indicate the error pMgmt->eCurrState = WMAC_STATE_AUTH; } s_vMgrLogStatus(pMgmt,cpu_to_le16((*(sFrame.pwStatus)))); } } //need clear flags related to Networkmanager pDevice->bwextstep0 = false; pDevice->bwextstep1 = false; pDevice->bwextstep2 = false; pDevice->bwextstep3 = false; pDevice->bWPASuppWextEnabled = false; if(pMgmt->eCurrState == WMAC_STATE_ASSOC) timer_expire(pDevice->sTimerCommand, 0); return; } /*+ * * Routine Description: * Start the station authentication procedure. Namely, send an * authentication frame to the AP. * * Return Value: * None. * -*/ void vMgrAuthenBeginSta(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PCMD_STATUS pStatus) { WLAN_FR_AUTHEN sFrame; struct vnt_tx_mgmt *pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_AUTHEN_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_AUTHEN_FR_MAXLEN; vMgrEncodeAuthen(&sFrame); /* insert values */ sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_AUTHEN) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); if (pMgmt->bShareKeyAlgorithm) *(sFrame.pwAuthAlgorithm) = cpu_to_le16(WLAN_AUTH_ALG_SHAREDKEY); else *(sFrame.pwAuthAlgorithm) = cpu_to_le16(WLAN_AUTH_ALG_OPENSYSTEM); *(sFrame.pwAuthSequence) = cpu_to_le16(1); /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; *pStatus = csMgmt_xmit(pDevice, pTxPacket); if (*pStatus == CMD_STATUS_PENDING){ pMgmt->eCurrState = WMAC_STATE_AUTHPENDING; *pStatus = CMD_STATUS_SUCCESS; } return ; } /*+ * * Routine Description: * Start the station(AP) deauthentication procedure. Namely, send an * deauthentication frame to the AP or Sta. * * Return Value: * None. * -*/ void vMgrDeAuthenBeginSta(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u8 *abyDestAddress, u16 wReason, PCMD_STATUS pStatus) { WLAN_FR_DEAUTHEN sFrame; struct vnt_tx_mgmt *pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_DEAUTHEN_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_DEAUTHEN_FR_MAXLEN; vMgrEncodeDeauthen(&sFrame); /* insert values */ sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_DEAUTHEN) )); memcpy( sFrame.pHdr->sA3.abyAddr1, abyDestAddress, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *(sFrame.pwReason) = cpu_to_le16(wReason); // deauthen. bcs left BSS /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; *pStatus = csMgmt_xmit(pDevice, pTxPacket); if (*pStatus == CMD_STATUS_PENDING){ *pStatus = CMD_STATUS_SUCCESS; } return ; } /*+ * * Routine Description: * Handle incoming authentication frames. * * Return Value: * None. * -*/ static void s_vMgrRxAuthentication(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { WLAN_FR_AUTHEN sFrame; // we better be an AP or a STA in AUTHPENDING otherwise ignore if (!(pMgmt->eCurrMode == WMAC_MODE_ESS_AP || pMgmt->eCurrState == WMAC_STATE_AUTHPENDING)) { return; } // decode the frame sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeAuthen(&sFrame); switch (cpu_to_le16((*(sFrame.pwAuthSequence )))){ case 1: //AP funciton s_vMgrRxAuthenSequence_1(pDevice,pMgmt, &sFrame); break; case 2: s_vMgrRxAuthenSequence_2(pDevice, pMgmt, &sFrame); break; case 3: //AP funciton s_vMgrRxAuthenSequence_3(pDevice, pMgmt, &sFrame); break; case 4: s_vMgrRxAuthenSequence_4(pDevice, pMgmt, &sFrame); break; default: DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Auth Sequence error, seq = %d\n", cpu_to_le16((*(sFrame.pwAuthSequence)))); break; } return; } /*+ * * Routine Description: * Handles incoming authen frames with sequence 1. Currently * assumes we're an AP. So far, no one appears to use authentication * in Ad-Hoc mode. * * Return Value: * None. * -*/ static void s_vMgrRxAuthenSequence_1(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame) { struct vnt_tx_mgmt *pTxPacket = NULL; u32 uNodeIndex; WLAN_FR_AUTHEN sFrame; PSKeyItem pTransmitKey; /* Insert a Node entry */ if (!BSSbIsSTAInNodeDB(pDevice, pFrame->pHdr->sA3.abyAddr2, &uNodeIndex)) { BSSvCreateOneNode(pDevice, &uNodeIndex); memcpy(pMgmt->sNodeDBTable[uNodeIndex].abyMACAddr, pFrame->pHdr->sA3.abyAddr2, WLAN_ADDR_LEN); } if (pMgmt->bShareKeyAlgorithm) { pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_KNOWN; pMgmt->sNodeDBTable[uNodeIndex].byAuthSequence = 1; } else { pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_AUTH; } // send auth reply pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_AUTHEN_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_AUTHEN_FR_MAXLEN; // format buffer structure vMgrEncodeAuthen(&sFrame); // insert values sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_AUTHEN)| WLAN_SET_FC_ISWEP(0) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pFrame->pHdr->sA3.abyAddr2, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *(sFrame.pwAuthAlgorithm) = *(pFrame->pwAuthAlgorithm); *(sFrame.pwAuthSequence) = cpu_to_le16(2); if (cpu_to_le16(*(pFrame->pwAuthAlgorithm)) == WLAN_AUTH_ALG_SHAREDKEY) { if (pMgmt->bShareKeyAlgorithm) *(sFrame.pwStatus) = cpu_to_le16(WLAN_MGMT_STATUS_SUCCESS); else *(sFrame.pwStatus) = cpu_to_le16(WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG); } else { if (pMgmt->bShareKeyAlgorithm) *(sFrame.pwStatus) = cpu_to_le16(WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG); else *(sFrame.pwStatus) = cpu_to_le16(WLAN_MGMT_STATUS_SUCCESS); } if (pMgmt->bShareKeyAlgorithm && (cpu_to_le16(*(sFrame.pwStatus)) == WLAN_MGMT_STATUS_SUCCESS)) { sFrame.pChallenge = (PWLAN_IE_CHALLENGE)(sFrame.pBuf + sFrame.len); sFrame.len += WLAN_CHALLENGE_IE_LEN; sFrame.pChallenge->byElementID = WLAN_EID_CHALLENGE; sFrame.pChallenge->len = WLAN_CHALLENGE_LEN; memset(pMgmt->abyChallenge, 0, WLAN_CHALLENGE_LEN); // get group key if(KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBroadcastAddr, GROUP_KEY, &pTransmitKey) == true) { rc4_init(&pDevice->SBox, pDevice->abyPRNG, pTransmitKey->uKeyLength+3); rc4_encrypt(&pDevice->SBox, pMgmt->abyChallenge, pMgmt->abyChallenge, WLAN_CHALLENGE_LEN); } memcpy(sFrame.pChallenge->abyChallenge, pMgmt->abyChallenge , WLAN_CHALLENGE_LEN); } /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; // send the frame if (pDevice->bEnableHostapd) { return; } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Authreq_reply sequence_1 tx.. \n"); if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Authreq_reply sequence_1 tx failed.\n"); } return; } /*+ * * Routine Description: * Handles incoming auth frames with sequence number 2. Currently * assumes we're a station. * * * Return Value: * None. * -*/ static void s_vMgrRxAuthenSequence_2(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame) { WLAN_FR_AUTHEN sFrame; struct vnt_tx_mgmt *pTxPacket = NULL; switch (cpu_to_le16((*(pFrame->pwAuthAlgorithm)))) { case WLAN_AUTH_ALG_OPENSYSTEM: if ( cpu_to_le16((*(pFrame->pwStatus))) == WLAN_MGMT_STATUS_SUCCESS ){ DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (OPEN) Successful.\n"); pMgmt->eCurrState = WMAC_STATE_AUTH; timer_expire(pDevice->sTimerCommand, 0); } else { DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (OPEN) Failed.\n"); s_vMgrLogStatus(pMgmt, cpu_to_le16((*(pFrame->pwStatus)))); pMgmt->eCurrState = WMAC_STATE_IDLE; } if (pDevice->eCommandState == WLAN_AUTHENTICATE_WAIT) { /* spin_unlock_irq(&pDevice->lock); vCommandTimerWait((void *) pDevice, 0); spin_lock_irq(&pDevice->lock); */ } break; case WLAN_AUTH_ALG_SHAREDKEY: if (cpu_to_le16((*(pFrame->pwStatus))) == WLAN_MGMT_STATUS_SUCCESS) { pTxPacket = (struct vnt_tx_mgmt *) pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_AUTHEN_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_AUTHEN_FR_MAXLEN; // format buffer structure vMgrEncodeAuthen(&sFrame); // insert values sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_AUTHEN)| WLAN_SET_FC_ISWEP(1) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *(sFrame.pwAuthAlgorithm) = *(pFrame->pwAuthAlgorithm); *(sFrame.pwAuthSequence) = cpu_to_le16(3); *(sFrame.pwStatus) = cpu_to_le16(WLAN_MGMT_STATUS_SUCCESS); sFrame.pChallenge = (PWLAN_IE_CHALLENGE)(sFrame.pBuf + sFrame.len); sFrame.len += WLAN_CHALLENGE_IE_LEN; sFrame.pChallenge->byElementID = WLAN_EID_CHALLENGE; sFrame.pChallenge->len = WLAN_CHALLENGE_LEN; memcpy( sFrame.pChallenge->abyChallenge, pFrame->pChallenge->abyChallenge, WLAN_CHALLENGE_LEN); // Adjust the length fields pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; // send the frame if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Auth_reply sequence_2 tx failed.\n"); } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Auth_reply sequence_2 tx ...\n"); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:rx Auth_reply sequence_2 status error ...\n"); if ( pDevice->eCommandState == WLAN_AUTHENTICATE_WAIT ) { /* spin_unlock_irq(&pDevice->lock); vCommandTimerWait((void *) pDevice, 0); spin_lock_irq(&pDevice->lock); */ } s_vMgrLogStatus(pMgmt, cpu_to_le16((*(pFrame->pwStatus)))); } break; default: DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt: rx auth.seq = 2 unknown AuthAlgorithm=%d\n", cpu_to_le16((*(pFrame->pwAuthAlgorithm)))); break; } return; } /*+ * * Routine Description: * Handles incoming authen frames with sequence 3. Currently * assumes we're an AP. This function assumes the frame has * already been successfully decrypted. * * * Return Value: * None. * -*/ static void s_vMgrRxAuthenSequence_3(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame) { struct vnt_tx_mgmt *pTxPacket = NULL; u32 uStatusCode = 0 ; u32 uNodeIndex = 0; WLAN_FR_AUTHEN sFrame; if (!WLAN_GET_FC_ISWEP(pFrame->pHdr->sA3.wFrameCtl)) { uStatusCode = WLAN_MGMT_STATUS_CHALLENGE_FAIL; goto reply; } if (BSSbIsSTAInNodeDB(pDevice, pFrame->pHdr->sA3.abyAddr2, &uNodeIndex)) { if (pMgmt->sNodeDBTable[uNodeIndex].byAuthSequence != 1) { uStatusCode = WLAN_MGMT_STATUS_RX_AUTH_NOSEQ; goto reply; } if (memcmp(pMgmt->abyChallenge, pFrame->pChallenge->abyChallenge, WLAN_CHALLENGE_LEN) != 0) { uStatusCode = WLAN_MGMT_STATUS_CHALLENGE_FAIL; goto reply; } } else { uStatusCode = WLAN_MGMT_STATUS_UNSPEC_FAILURE; goto reply; } if (uNodeIndex) { pMgmt->sNodeDBTable[uNodeIndex].eNodeState = NODE_AUTH; pMgmt->sNodeDBTable[uNodeIndex].byAuthSequence = 0; } uStatusCode = WLAN_MGMT_STATUS_SUCCESS; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Challenge text check ok..\n"); reply: // send auth reply pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_AUTHEN_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_AUTHEN_FR_MAXLEN; // format buffer structure vMgrEncodeAuthen(&sFrame); /* insert values */ sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_AUTHEN)| WLAN_SET_FC_ISWEP(0) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pFrame->pHdr->sA3.abyAddr2, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *(sFrame.pwAuthAlgorithm) = *(pFrame->pwAuthAlgorithm); *(sFrame.pwAuthSequence) = cpu_to_le16(4); *(sFrame.pwStatus) = cpu_to_le16(uStatusCode); /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; // send the frame if (pDevice->bEnableHostapd) { return; } if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Authreq_reply sequence_4 tx failed.\n"); } return; } /*+ * * Routine Description: * Handles incoming authen frames with sequence 4 * * * Return Value: * None. * -*/ static void s_vMgrRxAuthenSequence_4(struct vnt_private *pDevice, struct vnt_manager *pMgmt, PWLAN_FR_AUTHEN pFrame) { if ( cpu_to_le16((*(pFrame->pwStatus))) == WLAN_MGMT_STATUS_SUCCESS ){ DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (SHAREDKEY) Successful.\n"); pMgmt->eCurrState = WMAC_STATE_AUTH; timer_expire(pDevice->sTimerCommand, 0); } else{ DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (SHAREDKEY) Failed.\n"); s_vMgrLogStatus(pMgmt, cpu_to_le16((*(pFrame->pwStatus))) ); pMgmt->eCurrState = WMAC_STATE_IDLE; } if ( pDevice->eCommandState == WLAN_AUTHENTICATE_WAIT ) { /* spin_unlock_irq(&pDevice->lock); vCommandTimerWait((void *) pDevice, 0); spin_lock_irq(&pDevice->lock); */ } } /*+ * * Routine Description: * Handles incoming disassociation frames * * * Return Value: * None. * -*/ static void s_vMgrRxDisassociation(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { WLAN_FR_DISASSOC sFrame; u32 uNodeIndex = 0; CMD_STATUS CmdStatus; if ( pMgmt->eCurrMode == WMAC_MODE_ESS_AP ){ // if is acting an AP.. // a STA is leaving this BSS.. sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; if (BSSbIsSTAInNodeDB(pDevice, pRxPacket->p80211Header->sA3.abyAddr2, &uNodeIndex)) { BSSvRemoveOneNode(pDevice, uNodeIndex); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rx disassoc, sta not found\n"); } } else if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA ){ sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeDisassociation(&sFrame); DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "AP disassociated me, reason=%d.\n", cpu_to_le16(*(sFrame.pwReason))); pDevice->fWPA_Authened = false; //TODO: do something let upper layer know or //try to send associate packet again because of inactivity timeout if (pMgmt->eCurrState == WMAC_STATE_ASSOC) { pDevice->bLinkPass = false; pMgmt->sNodeDBTable[0].bActive = false; pDevice->byReAssocCount = 0; pMgmt->eCurrState = WMAC_STATE_AUTH; // jump back to the auth state! pDevice->eCommandState = WLAN_ASSOCIATE_WAIT; vMgrReAssocBeginSta(pDevice, pMgmt, &CmdStatus); if(CmdStatus == CMD_STATUS_PENDING) { pDevice->byReAssocCount ++; return; //mike add: you'll retry for many times, so it cann't be regarded as disconnected! } } // if(pDevice->bWPASuppWextEnabled == true) { union iwreq_data wrqu; memset(&wrqu, 0, sizeof (wrqu)); wrqu.ap_addr.sa_family = ARPHRD_ETHER; PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n"); wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL); } } /* else, ignore it */ return; } /*+ * * Routine Description: * Handles incoming deauthentication frames * * * Return Value: * None. * -*/ static void s_vMgrRxDeauthentication(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { WLAN_FR_DEAUTHEN sFrame; u32 uNodeIndex = 0; if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP ){ //Todo: // if is acting an AP.. // a STA is leaving this BSS.. sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; if (BSSbIsSTAInNodeDB(pDevice, pRxPacket->p80211Header->sA3.abyAddr2, &uNodeIndex)) { BSSvRemoveOneNode(pDevice, uNodeIndex); } else { DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Rx deauth, sta not found\n"); } } else { if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA ) { sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeDeauthen(&sFrame); pDevice->fWPA_Authened = false; DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "AP deauthed me, reason=%d.\n", cpu_to_le16((*(sFrame.pwReason)))); // TODO: update BSS list for specific BSSID if pre-authentication case if (!compare_ether_addr(sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID)) { if (pMgmt->eCurrState >= WMAC_STATE_AUTHPENDING) { pMgmt->sNodeDBTable[0].bActive = false; pMgmt->eCurrMode = WMAC_MODE_STANDBY; pMgmt->eCurrState = WMAC_STATE_IDLE; netif_stop_queue(pDevice->dev); pDevice->bLinkPass = false; ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW); } } // if(pDevice->bWPASuppWextEnabled == true) { union iwreq_data wrqu; memset(&wrqu, 0, sizeof (wrqu)); wrqu.ap_addr.sa_family = ARPHRD_ETHER; PRINT_K("wireless_send_event--->SIOCGIWAP(disauthen)\n"); wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL); } } /* else, ignore it. TODO: IBSS authentication service would be implemented here */ }; return; } /*+ * * Routine Description: * check if current channel is match ZoneType. *for USA:1~11; * Japan:1~13; * Europe:1~13 * Return Value: * True:exceed; * False:normal case -*/ static int ChannelExceedZoneType(struct vnt_private *pDevice, u8 byCurrChannel) { int exceed = false; switch(pDevice->byZoneType) { case 0x00: //USA:1~11 if((byCurrChannel<1) ||(byCurrChannel>11)) exceed = true; break; case 0x01: //Japan:1~13 case 0x02: //Europe:1~13 if((byCurrChannel<1) ||(byCurrChannel>13)) exceed = true; break; default: //reserve for other zonetype break; } return exceed; } /*+ * * Routine Description: * Handles and analysis incoming beacon frames. * * * Return Value: * None. * -*/ static void s_vMgrRxBeacon(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket, int bInScan) { PKnownBSS pBSSList; WLAN_FR_BEACON sFrame; u64 qwTSFOffset; int bIsBSSIDEqual = false; int bIsSSIDEqual = false; int bTSFLargeDiff = false; int bTSFOffsetPostive = false; int bUpdateTSF = false; int bIsAPBeacon = false; int bIsChannelEqual = false; u32 uLocateByteIndex; u8 byTIMBitOn = 0; u16 wAIDNumber = 0; u32 uNodeIndex; u64 qwTimestamp, qwLocalTSF; u64 qwCurrTSF; u16 wStartIndex = 0; u16 wAIDIndex = 0; u8 byCurrChannel = pRxPacket->byRxChannel; ERPObject sERP; u32 uRateLen = WLAN_RATES_MAXLEN; int bChannelHit = false; u8 byOldPreambleType; if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) return; memset(&sFrame, 0, sizeof(WLAN_FR_BEACON)); sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; // decode the beacon frame vMgrDecodeBeacon(&sFrame); if ((sFrame.pwBeaconInterval == NULL) || (sFrame.pwCapInfo == NULL) || (sFrame.pSSID == NULL) || (sFrame.pSuppRates == NULL)) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rx beacon frame error\n"); return; } if( byCurrChannel > CB_MAX_CHANNEL_24G ) { if (sFrame.pDSParms != NULL) { if (byCurrChannel == RFaby11aChannelIndex[sFrame.pDSParms->byCurrChannel-1]) bChannelHit = true; byCurrChannel = RFaby11aChannelIndex[sFrame.pDSParms->byCurrChannel-1]; } else { bChannelHit = true; } } else { if (sFrame.pDSParms != NULL) { if (byCurrChannel == sFrame.pDSParms->byCurrChannel) bChannelHit = true; byCurrChannel = sFrame.pDSParms->byCurrChannel; } else { bChannelHit = true; } } if(ChannelExceedZoneType(pDevice,byCurrChannel)==true) return; if (sFrame.pERP != NULL) { sERP.byERP = sFrame.pERP->byContext; sERP.bERPExist = true; } else { sERP.bERPExist = false; sERP.byERP = 0; } pBSSList = BSSpAddrIsInBSSList((void *) pDevice, sFrame.pHdr->sA3.abyAddr3, sFrame.pSSID); if (pBSSList == NULL) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Beacon/insert: RxChannel = : %d\n", byCurrChannel); BSSbInsertToBSSList((void *) pDevice, sFrame.pHdr->sA3.abyAddr3, *sFrame.pqwTimestamp, *sFrame.pwBeaconInterval, *sFrame.pwCapInfo, byCurrChannel, sFrame.pSSID, sFrame.pSuppRates, sFrame.pExtSuppRates, &sERP, sFrame.pRSN, sFrame.pRSNWPA, sFrame.pIE_Country, sFrame.pIE_Quiet, sFrame.len - WLAN_HDR_ADDR3_LEN, sFrame.pHdr->sA4.abyAddr4, // payload of beacon (void *) pRxPacket); } else { // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"update bcn: RxChannel = : %d\n", byCurrChannel); BSSbUpdateToBSSList((void *) pDevice, *sFrame.pqwTimestamp, *sFrame.pwBeaconInterval, *sFrame.pwCapInfo, byCurrChannel, bChannelHit, sFrame.pSSID, sFrame.pSuppRates, sFrame.pExtSuppRates, &sERP, sFrame.pRSN, sFrame.pRSNWPA, sFrame.pIE_Country, sFrame.pIE_Quiet, pBSSList, sFrame.len - WLAN_HDR_ADDR3_LEN, sFrame.pHdr->sA4.abyAddr4, // payload of probresponse (void *) pRxPacket); } if (bInScan) { return; } if(byCurrChannel == (u8)pMgmt->uCurrChannel) bIsChannelEqual = true; if (bIsChannelEqual && (pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) { // if rx beacon without ERP field if (sERP.bERPExist) { if (WLAN_GET_ERP_USE_PROTECTION(sERP.byERP)){ pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1); pDevice->wUseProtectCntDown = USE_PROTECT_PERIOD; } } else { pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1); pDevice->wUseProtectCntDown = USE_PROTECT_PERIOD; } if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { if(!WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo)) pDevice->byERPFlag |= WLAN_SET_ERP_BARKER_MODE(1); if(!sERP.bERPExist) pDevice->byERPFlag |= WLAN_SET_ERP_NONERP_PRESENT(1); } } // check if BSSID the same if (memcmp(sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN) == 0) { bIsBSSIDEqual = true; pDevice->uCurrRSSI = pRxPacket->uRSSI; pDevice->byCurrSQ = pRxPacket->bySQ; if (pMgmt->sNodeDBTable[0].uInActiveCount != 0) { pMgmt->sNodeDBTable[0].uInActiveCount = 0; //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BCN:Wake Count= [%d]\n", pMgmt->wCountToWakeUp); } } // check if SSID the same if (sFrame.pSSID->len == ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->len) { if (memcmp(sFrame.pSSID->abySSID, ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->abySSID, sFrame.pSSID->len ) == 0) { bIsSSIDEqual = true; } } if ((WLAN_GET_CAP_INFO_ESS(*sFrame.pwCapInfo)== true) && (bIsBSSIDEqual == true) && (bIsSSIDEqual == true) && (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) { // add state check to prevent reconnect fail since we'll receive Beacon bIsAPBeacon = true; if (pBSSList != NULL) { // Sync ERP field if ((pBSSList->sERP.bERPExist == true) && (pDevice->byBBType == BB_TYPE_11G)) { if ((pBSSList->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION) != pDevice->bProtectMode) {//0000 0010 pDevice->bProtectMode = (pBSSList->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION); if (pDevice->bProtectMode) { MACvEnableProtectMD(pDevice); } else { MACvDisableProtectMD(pDevice); } vUpdateIFS(pDevice); } if ((pBSSList->sERP.byERP & WLAN_EID_ERP_NONERP_PRESENT) != pDevice->bNonERPPresent) {//0000 0001 pDevice->bNonERPPresent = (pBSSList->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION); } if ((pBSSList->sERP.byERP & WLAN_EID_ERP_BARKER_MODE) != pDevice->bBarkerPreambleMd) {//0000 0100 pDevice->bBarkerPreambleMd = (pBSSList->sERP.byERP & WLAN_EID_ERP_BARKER_MODE); //BarkerPreambleMd has higher priority than shortPreamble bit in Cap if (pDevice->bBarkerPreambleMd) { MACvEnableBarkerPreambleMd(pDevice); } else { MACvDisableBarkerPreambleMd(pDevice); } } } // Sync Short Slot Time if (WLAN_GET_CAP_INFO_SHORTSLOTTIME(pBSSList->wCapInfo) != pDevice->bShortSlotTime) { bool bShortSlotTime; bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(pBSSList->wCapInfo); //DBG_PRN_WLAN05(("Set Short Slot Time: %d\n", pDevice->bShortSlotTime)); //Kyle check if it is OK to set G. if (pDevice->byBBType == BB_TYPE_11A) { bShortSlotTime = true; } else if (pDevice->byBBType == BB_TYPE_11B) { bShortSlotTime = false; } if (bShortSlotTime != pDevice->bShortSlotTime) { pDevice->bShortSlotTime = bShortSlotTime; BBvSetShortSlotTime(pDevice); vUpdateIFS(pDevice); } } // // Preamble may change dynamically // byOldPreambleType = pDevice->byPreambleType; if (WLAN_GET_CAP_INFO_SHORTPREAMBLE(pBSSList->wCapInfo)) { pDevice->byPreambleType = pDevice->byShortPreamble; } else { pDevice->byPreambleType = 0; } if (pDevice->byPreambleType != byOldPreambleType) CARDvSetRSPINF(pDevice, (u8)pDevice->byBBType); // // Basic Rate Set may change dynamically // if (pBSSList->eNetworkTypeInUse == PHY_TYPE_11B) { uRateLen = WLAN_RATES_MAXLEN_11B; } pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pBSSList->abySuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, uRateLen); pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pBSSList->abyExtSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, uRateLen); RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, true, &(pMgmt->sNodeDBTable[0].wMaxBasicRate), &(pMgmt->sNodeDBTable[0].wMaxSuppRate), &(pMgmt->sNodeDBTable[0].wSuppRate), &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate), &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate) ); } } // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Beacon 2 \n"); // check if CF field exisit if (WLAN_GET_CAP_INFO_ESS(*sFrame.pwCapInfo)) { if (sFrame.pCFParms->wCFPDurRemaining > 0) { // TODO: deal with CFP period to set NAV } } qwTimestamp = cpu_to_le64(*sFrame.pqwTimestamp); qwLocalTSF = pRxPacket->qwLocalTSF; // check if beacon TSF larger or small than our local TSF if (qwTimestamp >= qwLocalTSF) bTSFOffsetPostive = true; else bTSFOffsetPostive = false; if (bTSFOffsetPostive) { qwTSFOffset = CARDqGetTSFOffset(pRxPacket->byRxRate, (qwTimestamp), (qwLocalTSF)); } else { qwTSFOffset = CARDqGetTSFOffset(pRxPacket->byRxRate, (qwLocalTSF), (qwTimestamp)); } if (qwTSFOffset > TRIVIAL_SYNC_DIFFERENCE) bTSFLargeDiff = true; // if infra mode if (bIsAPBeacon == true) { // Infra mode: Local TSF always follow AP's TSF if Difference huge. if (bTSFLargeDiff) bUpdateTSF = true; if ((pDevice->bEnablePSMode == true) && (sFrame.pTIM)) { /* deal with DTIM, analysis TIM */ pMgmt->bMulticastTIM = WLAN_MGMT_IS_MULTICAST_TIM(sFrame.pTIM->byBitMapCtl) ? true : false ; pMgmt->byDTIMCount = sFrame.pTIM->byDTIMCount; pMgmt->byDTIMPeriod = sFrame.pTIM->byDTIMPeriod; wAIDNumber = pMgmt->wCurrAID & ~(BIT14|BIT15); // check if AID in TIM field bit on // wStartIndex = N1 wStartIndex = WLAN_MGMT_GET_TIM_OFFSET(sFrame.pTIM->byBitMapCtl) << 1; // AIDIndex = N2 wAIDIndex = (wAIDNumber >> 3); if ((wAIDNumber > 0) && (wAIDIndex >= wStartIndex)) { uLocateByteIndex = wAIDIndex - wStartIndex; // len = byDTIMCount + byDTIMPeriod + byDTIMPeriod + byVirtBitMap[0~250] if (sFrame.pTIM->len >= (uLocateByteIndex + 4)) { byTIMBitOn = (0x01) << ((wAIDNumber) % 8); pMgmt->bInTIM = sFrame.pTIM->byVirtBitMap[uLocateByteIndex] & byTIMBitOn ? true : false; } else { pMgmt->bInTIM = false; }; } else { pMgmt->bInTIM = false; }; if (pMgmt->bInTIM || (pMgmt->bMulticastTIM && (pMgmt->byDTIMCount == 0))) { pMgmt->bInTIMWake = true; /* send out ps-poll packet */ if (pMgmt->bInTIM) PSvSendPSPOLL(pDevice); } else { pMgmt->bInTIMWake = false; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BCN: Not In TIM..\n"); if (pDevice->bPWBitOn == false) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BCN: Send Null Packet\n"); if (PSbSendNullPacket(pDevice)) pDevice->bPWBitOn = true; } if(PSbConsiderPowerDown(pDevice, false, false)) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "BCN: Power down now...\n"); } } } } // if adhoc mode if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && !bIsAPBeacon && bIsChannelEqual) { if (bIsBSSIDEqual) { // Use sNodeDBTable[0].uInActiveCount as IBSS beacons received count. if (pMgmt->sNodeDBTable[0].uInActiveCount != 0) pMgmt->sNodeDBTable[0].uInActiveCount = 0; // adhoc mode:TSF updated only when beacon larger then local TSF if (bTSFLargeDiff && bTSFOffsetPostive && (pMgmt->eCurrState == WMAC_STATE_JOINTED)) bUpdateTSF = true; // During dpc, already in spinlocked. if (BSSbIsSTAInNodeDB(pDevice, sFrame.pHdr->sA3.abyAddr2, &uNodeIndex)) { // Update the STA, (Technically the Beacons of all the IBSS nodes // should be identical, but that's not happening in practice. pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, WLAN_RATES_MAXLEN_11B); RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, NULL, true, &(pMgmt->sNodeDBTable[uNodeIndex].wMaxBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].wSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopCCKBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopOFDMBasicRate) ); pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].uInActiveCount = 0; } else { /* Todo, initial Node content */ BSSvCreateOneNode(pDevice, &uNodeIndex); pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, WLAN_RATES_MAXLEN_11B); RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, NULL, true, &(pMgmt->sNodeDBTable[uNodeIndex].wMaxBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].wSuppRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopCCKBasicRate), &(pMgmt->sNodeDBTable[uNodeIndex].byTopOFDMBasicRate) ); memcpy(pMgmt->sNodeDBTable[uNodeIndex].abyMACAddr, sFrame.pHdr->sA3.abyAddr2, WLAN_ADDR_LEN); pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo); pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate = pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate; /* pMgmt->sNodeDBTable[uNodeIndex].bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(*sFrame.pwCapInfo); if(pMgmt->sNodeDBTable[uNodeIndex].wMaxSuppRate > RATE_11M) pMgmt->sNodeDBTable[uNodeIndex].bERPExist = true; */ } // if other stations jointed, indicate connect to upper layer.. if (pMgmt->eCurrState == WMAC_STATE_STARTED) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Current IBSS State: [Started]........to: [Jointed] \n"); pMgmt->eCurrState = WMAC_STATE_JOINTED; pDevice->bLinkPass = true; ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_INTER); if (netif_queue_stopped(pDevice->dev)){ netif_wake_queue(pDevice->dev); } pMgmt->sNodeDBTable[0].bActive = true; pMgmt->sNodeDBTable[0].uInActiveCount = 0; } } else if (bIsSSIDEqual) { // See other adhoc sta with the same SSID but BSSID is different. // adpot this vars only when TSF larger then us. if (bTSFLargeDiff && bTSFOffsetPostive) { // we don't support ATIM under adhoc mode // if ( sFrame.pIBSSParms->wATIMWindow == 0) { // adpot this vars // TODO: check sFrame cap if privacy on, and support rate syn memcpy(pMgmt->abyCurrBSSID, sFrame.pHdr->sA3.abyAddr3, WLAN_BSSID_LEN); memcpy(pDevice->abyBSSID, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); pMgmt->wCurrATIMWindow = cpu_to_le16(sFrame.pIBSSParms->wATIMWindow); pMgmt->wCurrBeaconPeriod = cpu_to_le16(*sFrame.pwBeaconInterval); pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, WLAN_RATES_MAXLEN_11B); // set HW beacon interval and re-synchronizing.... DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rejoining to Other Adhoc group with same SSID........\n"); MACvWriteBeaconInterval(pDevice, pMgmt->wCurrBeaconPeriod); CARDvAdjustTSF(pDevice, pRxPacket->byRxRate, qwTimestamp, pRxPacket->qwLocalTSF); CARDvUpdateNextTBTT(pDevice, qwTimestamp, pMgmt->wCurrBeaconPeriod); // Turn off bssid filter to avoid filter others adhoc station which bssid is different. MACvWriteBSSIDAddress(pDevice, pMgmt->abyCurrBSSID); byOldPreambleType = pDevice->byPreambleType; if (WLAN_GET_CAP_INFO_SHORTPREAMBLE(*sFrame.pwCapInfo)) { pDevice->byPreambleType = pDevice->byShortPreamble; } else { pDevice->byPreambleType = 0; } if (pDevice->byPreambleType != byOldPreambleType) CARDvSetRSPINF(pDevice, (u8)pDevice->byBBType); // MACvRegBitsOff(pDevice->PortOffset, MAC_REG_RCR, RCR_BSSID); // set highest basic rate // s_vSetHighestBasicRate(pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates); // Prepare beacon frame bMgrPrepareBeaconToSend((void *) pDevice, pMgmt); // } } } } // endian issue ??? // Update TSF if (bUpdateTSF) { CARDbGetCurrentTSF(pDevice, &qwCurrTSF); CARDvAdjustTSF(pDevice, pRxPacket->byRxRate, qwTimestamp , pRxPacket->qwLocalTSF); CARDbGetCurrentTSF(pDevice, &qwCurrTSF); CARDvUpdateNextTBTT(pDevice, qwTimestamp, pMgmt->wCurrBeaconPeriod); } return; } /*+ * * Routine Description: * Instructs the hw to create a bss using the supplied * attributes. Note that this implementation only supports Ad-Hoc * BSS creation. * * * Return Value: * CMD_STATUS * -*/ void vMgrCreateOwnIBSS(struct vnt_private *pDevice, PCMD_STATUS pStatus) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; u16 wMaxBasicRate; u16 wMaxSuppRate; u8 byTopCCKBasicRate; u8 byTopOFDMBasicRate; u64 qwCurrTSF = 0; int ii; u8 abyRATE[] = {0x82, 0x84, 0x8B, 0x96, 0x24, 0x30, 0x48, 0x6C, 0x0C, 0x12, 0x18, 0x60}; u8 abyCCK_RATE[] = {0x82, 0x84, 0x8B, 0x96}; u8 abyOFDM_RATE[] = {0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C}; u16 wSuppRate; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create Basic Service Set .......\n"); if (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) { if ((pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) && (pDevice->eEncryptionStatus != Ndis802_11Encryption2Enabled) && (pDevice->eEncryptionStatus != Ndis802_11Encryption3Enabled)) { // encryption mode error *pStatus = CMD_STATUS_FAILURE; return; } } pMgmt->abyCurrSuppRates[0] = WLAN_EID_SUPP_RATES; pMgmt->abyCurrExtSuppRates[0] = WLAN_EID_EXTSUPP_RATES; if (pMgmt->eConfigMode == WMAC_CONFIG_AP) { pMgmt->eCurrentPHYMode = pMgmt->byAPBBType; } else { if (pDevice->byBBType == BB_TYPE_11G) pMgmt->eCurrentPHYMode = PHY_TYPE_11G; if (pDevice->byBBType == BB_TYPE_11B) pMgmt->eCurrentPHYMode = PHY_TYPE_11B; if (pDevice->byBBType == BB_TYPE_11A) pMgmt->eCurrentPHYMode = PHY_TYPE_11A; } if (pMgmt->eCurrentPHYMode != PHY_TYPE_11A) { pMgmt->abyCurrSuppRates[1] = WLAN_RATES_MAXLEN_11B; pMgmt->abyCurrExtSuppRates[1] = 0; for (ii = 0; ii < 4; ii++) pMgmt->abyCurrSuppRates[2+ii] = abyRATE[ii]; } else { pMgmt->abyCurrSuppRates[1] = 8; pMgmt->abyCurrExtSuppRates[1] = 0; for (ii = 0; ii < 8; ii++) pMgmt->abyCurrSuppRates[2+ii] = abyRATE[ii]; } if (pMgmt->eCurrentPHYMode == PHY_TYPE_11G) { pMgmt->abyCurrSuppRates[1] = 8; pMgmt->abyCurrExtSuppRates[1] = 4; for (ii = 0; ii < 4; ii++) pMgmt->abyCurrSuppRates[2+ii] = abyCCK_RATE[ii]; for (ii = 4; ii < 8; ii++) pMgmt->abyCurrSuppRates[2+ii] = abyOFDM_RATE[ii-4]; for (ii = 0; ii < 4; ii++) pMgmt->abyCurrExtSuppRates[2+ii] = abyOFDM_RATE[ii+4]; } // Disable Protect Mode pDevice->bProtectMode = 0; MACvDisableProtectMD(pDevice); pDevice->bBarkerPreambleMd = 0; MACvDisableBarkerPreambleMd(pDevice); // Kyle Test 2003.11.04 // set HW beacon interval if (pMgmt->wIBSSBeaconPeriod == 0) pMgmt->wIBSSBeaconPeriod = DEFAULT_IBSS_BI; MACvWriteBeaconInterval(pDevice, pMgmt->wIBSSBeaconPeriod); CARDbGetCurrentTSF(pDevice, &qwCurrTSF); // clear TSF counter CARDbClearCurrentTSF(pDevice); // enable TSF counter MACvRegBitsOn(pDevice,MAC_REG_TFTCTL,TFTCTL_TSFCNTREN); // set Next TBTT CARDvSetFirstNextTBTT(pDevice, pMgmt->wIBSSBeaconPeriod); pMgmt->uIBSSChannel = pDevice->uChannel; if (pMgmt->uIBSSChannel == 0) pMgmt->uIBSSChannel = DEFAULT_IBSS_CHANNEL; // set channel and clear NAV CARDbSetMediaChannel(pDevice, pMgmt->uIBSSChannel); pMgmt->uCurrChannel = pMgmt->uIBSSChannel; pDevice->byPreambleType = pDevice->byShortPreamble; // set basic rate RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, true, &wMaxBasicRate, &wMaxSuppRate, &wSuppRate, &byTopCCKBasicRate, &byTopOFDMBasicRate); if (pDevice->byBBType == BB_TYPE_11A) { pDevice->bShortSlotTime = true; } else { pDevice->bShortSlotTime = false; } BBvSetShortSlotTime(pDevice); // vUpdateIFS() use pDevice->bShortSlotTime as parameter so it must be called // after setting ShortSlotTime. // CARDvSetBSSMode call vUpdateIFS() CARDvSetBSSMode(pDevice); if (pMgmt->eConfigMode == WMAC_CONFIG_AP) { MACvRegBitsOn(pDevice, MAC_REG_HOSTCR, HOSTCR_AP); pMgmt->eCurrMode = WMAC_MODE_ESS_AP; } if (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) { MACvRegBitsOn(pDevice, MAC_REG_HOSTCR, HOSTCR_ADHOC); pMgmt->eCurrMode = WMAC_MODE_IBSS_STA; } // Adopt pre-configured IBSS vars to current vars pMgmt->eCurrState = WMAC_STATE_STARTED; pMgmt->wCurrBeaconPeriod = pMgmt->wIBSSBeaconPeriod; pMgmt->uCurrChannel = pMgmt->uIBSSChannel; pMgmt->wCurrATIMWindow = pMgmt->wIBSSATIMWindow; pDevice->uCurrRSSI = 0; pDevice->byCurrSQ = 0; memcpy(pMgmt->abyDesireSSID,pMgmt->abyAdHocSSID, ((PWLAN_IE_SSID)pMgmt->abyAdHocSSID)->len + WLAN_IEHDR_LEN); memset(pMgmt->abyCurrSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1); memcpy(pMgmt->abyCurrSSID, pMgmt->abyDesireSSID, ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->len + WLAN_IEHDR_LEN ); if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { // AP mode BSSID = MAC addr memcpy(pMgmt->abyCurrBSSID, pMgmt->abyMACAddr, WLAN_ADDR_LEN); DBG_PRT(MSG_LEVEL_INFO, KERN_INFO"AP beacon created BSSID:" "%pM\n", pMgmt->abyCurrBSSID); } if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { // BSSID selected must be randomized as spec 11.1.3 pMgmt->abyCurrBSSID[5] = (u8)(qwCurrTSF & 0x000000ff); pMgmt->abyCurrBSSID[4] = (u8)((qwCurrTSF & 0x0000ff00) >> 8); pMgmt->abyCurrBSSID[3] = (u8)((qwCurrTSF & 0x00ff0000) >> 16); pMgmt->abyCurrBSSID[2] = (u8)((qwCurrTSF & 0x00000ff0) >> 4); pMgmt->abyCurrBSSID[1] = (u8)((qwCurrTSF & 0x000ff000) >> 12); pMgmt->abyCurrBSSID[0] = (u8)((qwCurrTSF & 0x0ff00000) >> 20); pMgmt->abyCurrBSSID[5] ^= pMgmt->abyMACAddr[0]; pMgmt->abyCurrBSSID[4] ^= pMgmt->abyMACAddr[1]; pMgmt->abyCurrBSSID[3] ^= pMgmt->abyMACAddr[2]; pMgmt->abyCurrBSSID[2] ^= pMgmt->abyMACAddr[3]; pMgmt->abyCurrBSSID[1] ^= pMgmt->abyMACAddr[4]; pMgmt->abyCurrBSSID[0] ^= pMgmt->abyMACAddr[5]; pMgmt->abyCurrBSSID[0] &= ~IEEE_ADDR_GROUP; pMgmt->abyCurrBSSID[0] |= IEEE_ADDR_UNIVERSAL; DBG_PRT(MSG_LEVEL_INFO, KERN_INFO"Adhoc beacon created bssid:" "%pM\n", pMgmt->abyCurrBSSID); } // set BSSID filter MACvWriteBSSIDAddress(pDevice, pMgmt->abyCurrBSSID); memcpy(pDevice->abyBSSID, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN); MACvRegBitsOn(pDevice, MAC_REG_RCR, RCR_BSSID); pDevice->byRxMode |= RCR_BSSID; pMgmt->bCurrBSSIDFilterOn = true; // Set Capability Info pMgmt->wCurrCapInfo = 0; if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_ESS(1); pMgmt->byDTIMPeriod = DEFAULT_DTIM_PERIOD; pMgmt->byDTIMCount = pMgmt->byDTIMPeriod - 1; pDevice->eOPMode = OP_MODE_AP; } if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_IBSS(1); pDevice->eOPMode = OP_MODE_ADHOC; } if (pDevice->bEncryptionEnable) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_PRIVACY(1); if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) { if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) { pMgmt->byCSSPK = KEY_CTL_CCMP; pMgmt->byCSSGK = KEY_CTL_CCMP; } else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) { pMgmt->byCSSPK = KEY_CTL_TKIP; pMgmt->byCSSGK = KEY_CTL_TKIP; } else { pMgmt->byCSSPK = KEY_CTL_NONE; pMgmt->byCSSGK = KEY_CTL_WEP; } } else { pMgmt->byCSSPK = KEY_CTL_WEP; pMgmt->byCSSGK = KEY_CTL_WEP; } } pMgmt->byERPContext = 0; if (pDevice->byPreambleType == 1) { pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_SHORTPREAMBLE(1); } else { pMgmt->wCurrCapInfo &= (~WLAN_SET_CAP_INFO_SHORTPREAMBLE(1)); } pMgmt->eCurrState = WMAC_STATE_STARTED; // Prepare beacon to send if (bMgrPrepareBeaconToSend((void *) pDevice, pMgmt)) *pStatus = CMD_STATUS_SUCCESS; return; } /*+ * * Routine Description: * Instructs wmac to join a bss using the supplied attributes. * The arguments may the BSSID or SSID and the rest of the * attributes are obtained from the scan result of known bss list. * * * Return Value: * None. * -*/ void vMgrJoinBSSBegin(struct vnt_private *pDevice, PCMD_STATUS pStatus) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; PKnownBSS pCurr = NULL; int ii, uu; PWLAN_IE_SUPP_RATES pItemRates = NULL; PWLAN_IE_SUPP_RATES pItemExtRates = NULL; PWLAN_IE_SSID pItemSSID; u32 uRateLen = WLAN_RATES_MAXLEN; u16 wMaxBasicRate = RATE_1M; u16 wMaxSuppRate = RATE_1M; u16 wSuppRate; u8 byTopCCKBasicRate = RATE_1M; u8 byTopOFDMBasicRate = RATE_1M; u8 bShortSlotTime = false; for (ii = 0; ii < MAX_BSS_NUM; ii++) { if (pMgmt->sBSSList[ii].bActive == true) break; } if (ii == MAX_BSS_NUM) { *pStatus = CMD_STATUS_RESOURCES; DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "BSS finding:BSS list is empty.\n"); return; } // memset(pMgmt->abyDesireBSSID, 0, WLAN_BSSID_LEN); // Search known BSS list for prefer BSSID or SSID pCurr = BSSpSearchBSSList(pDevice, pMgmt->abyDesireBSSID, pMgmt->abyDesireSSID, pDevice->eConfigPHYMode ); if (pCurr == NULL){ *pStatus = CMD_STATUS_RESOURCES; pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID; DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Scanning [%s] not found, disconnected !\n", pItemSSID->abySSID); return; } DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "AP(BSS) finding:Found a AP(BSS)..\n"); if (WLAN_GET_CAP_INFO_ESS(cpu_to_le16(pCurr->wCapInfo))){ if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) || (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK)) { /* if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) { if (WPA_SearchRSN(0, WPA_TKIP, pCurr) == false) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No match RSN info. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); // encryption mode error pMgmt->eCurrState = WMAC_STATE_IDLE; return; } } else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) { if (WPA_SearchRSN(0, WPA_AESCCMP, pCurr) == false) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No match RSN info. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n"); // encryption mode error pMgmt->eCurrState = WMAC_STATE_IDLE; return; } } */ } //if(pDevice->bWPASuppWextEnabled == true) Encyption_Rebuild(pDevice, pCurr); // Infrastructure BSS s_vMgrSynchBSS(pDevice, WMAC_MODE_ESS_STA, pCurr, pStatus ); if (*pStatus == CMD_STATUS_SUCCESS){ // Adopt this BSS state vars in Mgmt Object pMgmt->uCurrChannel = pCurr->uChannel; memset(pMgmt->abyCurrSuppRates, 0 , WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); memset(pMgmt->abyCurrExtSuppRates, 0 , WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); if (pCurr->eNetworkTypeInUse == PHY_TYPE_11B) { uRateLen = WLAN_RATES_MAXLEN_11B; } pItemRates = (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates; pItemExtRates = (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates; // Parse Support Rate IE pItemRates->byElementID = WLAN_EID_SUPP_RATES; pItemRates->len = RATEuSetIE((PWLAN_IE_SUPP_RATES)pCurr->abySuppRates, pItemRates, uRateLen); // Parse Extension Support Rate IE pItemExtRates->byElementID = WLAN_EID_EXTSUPP_RATES; pItemExtRates->len = RATEuSetIE((PWLAN_IE_SUPP_RATES)pCurr->abyExtSuppRates, pItemExtRates, uRateLen); // Stuffing Rate IE if ((pItemExtRates->len > 0) && (pItemRates->len < 8)) { for (ii = 0; ii < (unsigned int) (8 - pItemRates->len); ) { pItemRates->abyRates[pItemRates->len + ii] = pItemExtRates->abyRates[ii]; ii++; if (pItemExtRates->len <= ii) break; } pItemRates->len += (u8)ii; if (pItemExtRates->len - ii > 0) { pItemExtRates->len -= (u8)ii; for (uu = 0; uu < pItemExtRates->len; uu ++) { pItemExtRates->abyRates[uu] = pItemExtRates->abyRates[uu + ii]; } } else { pItemExtRates->len = 0; } } RATEvParseMaxRate((void *)pDevice, pItemRates, pItemExtRates, true, &wMaxBasicRate, &wMaxSuppRate, &wSuppRate, &byTopCCKBasicRate, &byTopOFDMBasicRate); vUpdateIFS(pDevice); // TODO: deal with if wCapInfo the privacy is on, but station WEP is off // TODO: deal with if wCapInfo the PS-Pollable is on. pMgmt->wCurrBeaconPeriod = pCurr->wBeaconInterval; memset(pMgmt->abyCurrSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1); memcpy(pMgmt->abyCurrBSSID, pCurr->abyBSSID, WLAN_BSSID_LEN); memcpy(pMgmt->abyCurrSSID, pCurr->abySSID, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1); pMgmt->eCurrMode = WMAC_MODE_ESS_STA; pMgmt->eCurrState = WMAC_STATE_JOINTED; // Adopt BSS state in Adapter Device Object pDevice->eOPMode = OP_MODE_INFRASTRUCTURE; memcpy(pDevice->abyBSSID, pCurr->abyBSSID, WLAN_BSSID_LEN); // Add current BSS to Candidate list // This should only work for WPA2 BSS, and WPA2 BSS check must be done before. if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) { bool bResult = bAdd_PMKID_Candidate((void *) pDevice, pMgmt->abyCurrBSSID, &pCurr->sRSNCapObj); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"bAdd_PMKID_Candidate: 1(%d)\n", bResult); if (bResult == false) { vFlush_PMKID_Candidate((void *) pDevice); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "vFlush_PMKID_Candidate: 4\n"); bAdd_PMKID_Candidate((void *) pDevice, pMgmt->abyCurrBSSID, &pCurr->sRSNCapObj); } } // Preamble type auto-switch: if AP can receive short-preamble cap, // we can turn on too. if (WLAN_GET_CAP_INFO_SHORTPREAMBLE(pCurr->wCapInfo)) { pDevice->byPreambleType = pDevice->byShortPreamble; } else { pDevice->byPreambleType = 0; } // Change PreambleType must set RSPINF again CARDvSetRSPINF(pDevice, (u8)pDevice->byBBType); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Join ESS\n"); if (pCurr->eNetworkTypeInUse == PHY_TYPE_11G) { if ((pCurr->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION) != pDevice->bProtectMode) {//0000 0010 pDevice->bProtectMode = (pCurr->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION); if (pDevice->bProtectMode) { MACvEnableProtectMD(pDevice); } else { MACvDisableProtectMD(pDevice); } vUpdateIFS(pDevice); } if ((pCurr->sERP.byERP & WLAN_EID_ERP_NONERP_PRESENT) != pDevice->bNonERPPresent) {//0000 0001 pDevice->bNonERPPresent = (pCurr->sERP.byERP & WLAN_EID_ERP_USE_PROTECTION); } if ((pCurr->sERP.byERP & WLAN_EID_ERP_BARKER_MODE) != pDevice->bBarkerPreambleMd) {//0000 0100 pDevice->bBarkerPreambleMd = (pCurr->sERP.byERP & WLAN_EID_ERP_BARKER_MODE); //BarkerPreambleMd has higher priority than shortPreamble bit in Cap if (pDevice->bBarkerPreambleMd) { MACvEnableBarkerPreambleMd(pDevice); } else { MACvDisableBarkerPreambleMd(pDevice); } } } //DBG_PRN_WLAN05(("wCapInfo: %X\n", pCurr->wCapInfo)); if (WLAN_GET_CAP_INFO_SHORTSLOTTIME(pCurr->wCapInfo) != pDevice->bShortSlotTime) { if (pDevice->byBBType == BB_TYPE_11A) { bShortSlotTime = true; } else if (pDevice->byBBType == BB_TYPE_11B) { bShortSlotTime = false; } else { bShortSlotTime = WLAN_GET_CAP_INFO_SHORTSLOTTIME(pCurr->wCapInfo); } //DBG_PRN_WLAN05(("Set Short Slot Time: %d\n", pDevice->bShortSlotTime)); if (bShortSlotTime != pDevice->bShortSlotTime) { pDevice->bShortSlotTime = bShortSlotTime; BBvSetShortSlotTime(pDevice); vUpdateIFS(pDevice); } } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"End of Join AP -- A/B/G Action\n"); } else { pMgmt->eCurrState = WMAC_STATE_IDLE; }; } else { // ad-hoc mode BSS if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) { if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) { /* if (WPA_SearchRSN(0, WPA_TKIP, pCurr) == false) { // encryption mode error pMgmt->eCurrState = WMAC_STATE_IDLE; return; } */ } else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) { /* if (WPA_SearchRSN(0, WPA_AESCCMP, pCurr) == false) { // encryption mode error pMgmt->eCurrState = WMAC_STATE_IDLE; return; } */ } else { // encryption mode error pMgmt->eCurrState = WMAC_STATE_IDLE; return; } } s_vMgrSynchBSS(pDevice, WMAC_MODE_IBSS_STA, pCurr, pStatus ); if (*pStatus == CMD_STATUS_SUCCESS){ // Adopt this BSS state vars in Mgmt Object // TODO: check if CapInfo privacy on, but we don't.. pMgmt->uCurrChannel = pCurr->uChannel; // Parse Support Rate IE pMgmt->abyCurrSuppRates[0] = WLAN_EID_SUPP_RATES; pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pCurr->abySuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, WLAN_RATES_MAXLEN_11B); // set basic rate RATEvParseMaxRate((void *)pDevice, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, NULL, true, &wMaxBasicRate, &wMaxSuppRate, &wSuppRate, &byTopCCKBasicRate, &byTopOFDMBasicRate); vUpdateIFS(pDevice); pMgmt->wCurrCapInfo = pCurr->wCapInfo; pMgmt->wCurrBeaconPeriod = pCurr->wBeaconInterval; memset(pMgmt->abyCurrSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN); memcpy(pMgmt->abyCurrBSSID, pCurr->abyBSSID, WLAN_BSSID_LEN); memcpy(pMgmt->abyCurrSSID, pCurr->abySSID, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN); // pMgmt->wCurrATIMWindow = pCurr->wATIMWindow; pMgmt->eCurrMode = WMAC_MODE_IBSS_STA; pMgmt->eCurrState = WMAC_STATE_STARTED; // Adopt BSS state in Adapter Device Object pDevice->eOPMode = OP_MODE_ADHOC; pDevice->bLinkPass = true; ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_INTER); memcpy(pDevice->abyBSSID, pCurr->abyBSSID, WLAN_BSSID_LEN); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Join IBSS ok:%pM\n", pMgmt->abyCurrBSSID); // Preamble type auto-switch: if AP can receive short-preamble cap, // and if registry setting is short preamble we can turn on too. if (WLAN_GET_CAP_INFO_SHORTPREAMBLE(pCurr->wCapInfo)) { pDevice->byPreambleType = pDevice->byShortPreamble; } else { pDevice->byPreambleType = 0; } // Change PreambleType must set RSPINF again CARDvSetRSPINF(pDevice, (u8)pDevice->byBBType); // Prepare beacon bMgrPrepareBeaconToSend((void *) pDevice, pMgmt); } else { pMgmt->eCurrState = WMAC_STATE_IDLE; }; }; return; } /*+ * * Routine Description: * Set HW to synchronize a specific BSS from known BSS list. * * * Return Value: * PCM_STATUS * -*/ static void s_vMgrSynchBSS(struct vnt_private *pDevice, u32 uBSSMode, PKnownBSS pCurr, PCMD_STATUS pStatus) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; u8 abyCurrSuppRatesG[] = {WLAN_EID_SUPP_RATES, 8, 0x02, 0x04, 0x0B, 0x16, 0x24, 0x30, 0x48, 0x6C}; /* 1M, 2M, 5M, 11M, 18M, 24M, 36M, 54M*/ u8 abyCurrExtSuppRatesG[] = {WLAN_EID_EXTSUPP_RATES, 4, 0x0C, 0x12, 0x18, 0x60}; /* 6M, 9M, 12M, 48M*/ u8 abyCurrSuppRatesA[] = {WLAN_EID_SUPP_RATES, 8, 0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C}; u8 abyCurrSuppRatesB[] = {WLAN_EID_SUPP_RATES, 4, 0x02, 0x04, 0x0B, 0x16}; *pStatus = CMD_STATUS_FAILURE; if (s_bCipherMatch(pCurr, pDevice->eEncryptionStatus, &(pMgmt->byCSSPK), &(pMgmt->byCSSGK)) == false) { DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "s_bCipherMatch Fail .......\n"); return; } pMgmt->pCurrBSS = pCurr; // if previous mode is IBSS. if(pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { MACvRegBitsOff(pDevice, MAC_REG_TCR, TCR_AUTOBCNTX); } // Init the BSS informations pDevice->bCCK = true; pDevice->bProtectMode = false; MACvDisableProtectMD(pDevice); pDevice->bBarkerPreambleMd = false; MACvDisableBarkerPreambleMd(pDevice); pDevice->bNonERPPresent = false; pDevice->byPreambleType = 0; pDevice->wBasicRate = 0; // Set Basic Rate CARDbAddBasicRate((void *)pDevice, RATE_1M); // calculate TSF offset // TSF Offset = Received Timestamp TSF - Marked Local's TSF CARDvAdjustTSF(pDevice, pCurr->byRxRate, pCurr->qwBSSTimestamp, pCurr->qwLocalTSF); // set HW beacon interval MACvWriteBeaconInterval(pDevice, pCurr->wBeaconInterval); // set Next TBTT // Next TBTT = ((local_current_TSF / beacon_interval) + 1 ) * beacon_interval CARDvSetFirstNextTBTT(pDevice, pCurr->wBeaconInterval); // set BSSID MACvWriteBSSIDAddress(pDevice, pCurr->abyBSSID); memcpy(pMgmt->abyCurrBSSID, pCurr->abyBSSID, 6); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Sync:set CurrBSSID address = " "%pM\n", pMgmt->abyCurrBSSID); if (pCurr->eNetworkTypeInUse == PHY_TYPE_11A) { if ((pDevice->eConfigPHYMode == PHY_TYPE_11A) || (pDevice->eConfigPHYMode == PHY_TYPE_AUTO)) { pDevice->byBBType = BB_TYPE_11A; pMgmt->eCurrentPHYMode = PHY_TYPE_11A; pDevice->bShortSlotTime = true; BBvSetShortSlotTime(pDevice); CARDvSetBSSMode(pDevice); } else { return; } } else if (pCurr->eNetworkTypeInUse == PHY_TYPE_11B) { if ((pDevice->eConfigPHYMode == PHY_TYPE_11B) || (pDevice->eConfigPHYMode == PHY_TYPE_11G) || (pDevice->eConfigPHYMode == PHY_TYPE_AUTO)) { pDevice->byBBType = BB_TYPE_11B; pMgmt->eCurrentPHYMode = PHY_TYPE_11B; pDevice->bShortSlotTime = false; BBvSetShortSlotTime(pDevice); CARDvSetBSSMode(pDevice); } else { return; } } else { if ((pDevice->eConfigPHYMode == PHY_TYPE_11G) || (pDevice->eConfigPHYMode == PHY_TYPE_AUTO)) { pDevice->byBBType = BB_TYPE_11G; pMgmt->eCurrentPHYMode = PHY_TYPE_11G; pDevice->bShortSlotTime = true; BBvSetShortSlotTime(pDevice); CARDvSetBSSMode(pDevice); } else if (pDevice->eConfigPHYMode == PHY_TYPE_11B) { pDevice->byBBType = BB_TYPE_11B; pDevice->bShortSlotTime = false; BBvSetShortSlotTime(pDevice); CARDvSetBSSMode(pDevice); } else { return; } } if (uBSSMode == WMAC_MODE_ESS_STA) { MACvRegBitsOff(pDevice, MAC_REG_HOSTCR, HOSTCR_ADHOC); MACvRegBitsOn(pDevice, MAC_REG_RCR, RCR_BSSID); pDevice->byRxMode |= RCR_BSSID; pMgmt->bCurrBSSIDFilterOn = true; } // set channel and clear NAV CARDbSetMediaChannel(pDevice, pCurr->uChannel); pMgmt->uCurrChannel = pCurr->uChannel; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "<----s_bSynchBSS Set Channel [%d]\n", pCurr->uChannel); if ((pDevice->bUpdateBBVGA) && (pDevice->byBBVGACurrent != pDevice->abyBBVGA[0])) { pDevice->byBBVGACurrent = pDevice->abyBBVGA[0]; BBvSetVGAGainOffset(pDevice, pDevice->byBBVGACurrent); BBvSetShortSlotTime(pDevice); } // // Notes: // 1. In Ad-hoc mode : check if received others beacon as jointed indication, // otherwise we will start own IBSS. // 2. In Infra mode : Supposed we already synchronized with AP right now. if (uBSSMode == WMAC_MODE_IBSS_STA) { MACvRegBitsOn(pDevice, MAC_REG_HOSTCR, HOSTCR_ADHOC); MACvRegBitsOn(pDevice, MAC_REG_RCR, RCR_BSSID); pDevice->byRxMode |= RCR_BSSID; pMgmt->bCurrBSSIDFilterOn = true; } if (pDevice->byBBType == BB_TYPE_11A) { memcpy(pMgmt->abyCurrSuppRates, &abyCurrSuppRatesA[0], sizeof(abyCurrSuppRatesA)); pMgmt->abyCurrExtSuppRates[1] = 0; } else if (pDevice->byBBType == BB_TYPE_11B) { memcpy(pMgmt->abyCurrSuppRates, &abyCurrSuppRatesB[0], sizeof(abyCurrSuppRatesB)); pMgmt->abyCurrExtSuppRates[1] = 0; } else { memcpy(pMgmt->abyCurrSuppRates, &abyCurrSuppRatesG[0], sizeof(abyCurrSuppRatesG)); memcpy(pMgmt->abyCurrExtSuppRates, &abyCurrExtSuppRatesG[0], sizeof(abyCurrExtSuppRatesG)); } pMgmt->byERPContext = pCurr->sERP.byERP; *pStatus = CMD_STATUS_SUCCESS; return; }; static void Encyption_Rebuild(struct vnt_private *pDevice, PKnownBSS pCurr) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; if ((pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) || (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) { if (pCurr->bWPAValid == true) { /*WPA-PSK */ pMgmt->eAuthenMode = WMAC_AUTH_WPAPSK; if(pCurr->abyPKType[0] == WPA_TKIP) { pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled; //TKIP PRINT_K("Encyption_Rebuild--->ssid reset config to [WPAPSK-TKIP]\n"); } else if(pCurr->abyPKType[0] == WPA_AESCCMP) { pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled; //AES PRINT_K("Encyption_Rebuild--->ssid reset config to [WPAPSK-AES]\n"); } } else if(pCurr->bWPA2Valid == true) { //WPA2-PSK pMgmt->eAuthenMode = WMAC_AUTH_WPA2PSK; if(pCurr->abyCSSPK[0] == WLAN_11i_CSS_TKIP) { pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled; //TKIP PRINT_K("Encyption_Rebuild--->ssid reset config to [WPA2PSK-TKIP]\n"); } else if(pCurr->abyCSSPK[0] == WLAN_11i_CSS_CCMP) { pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled; //AES PRINT_K("Encyption_Rebuild--->ssid reset config to [WPA2PSK-AES]\n"); } } } // } return; } /*+ * * Routine Description: * Format TIM field * * * Return Value: * void * -*/ static void s_vMgrFormatTIM(struct vnt_manager *pMgmt, PWLAN_IE_TIM pTIM) { u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80}; u8 byMap; int ii, jj; int bStartFound = false; int bMulticast = false; u16 wStartIndex = 0; u16 wEndIndex = 0; // Find size of partial virtual bitmap for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) { byMap = pMgmt->abyPSTxMap[ii]; if (!ii) { // Mask out the broadcast bit which is indicated separately. bMulticast = (byMap & byMask[0]) != 0; if(bMulticast) { pMgmt->sNodeDBTable[0].bRxPSPoll = true; } byMap = 0; } if (byMap) { if (!bStartFound) { bStartFound = true; wStartIndex = (u16)ii; } wEndIndex = (u16)ii; } } // Round start index down to nearest even number wStartIndex &= ~BIT0; // Round end index up to nearest even number wEndIndex = ((wEndIndex + 1) & ~BIT0); // Size of element payload pTIM->len = 3 + (wEndIndex - wStartIndex) + 1; // Fill in the Fixed parts of the TIM pTIM->byDTIMCount = pMgmt->byDTIMCount; pTIM->byDTIMPeriod = pMgmt->byDTIMPeriod; pTIM->byBitMapCtl = (bMulticast ? TIM_MULTICAST_MASK : 0) | (((wStartIndex >> 1) << 1) & TIM_BITMAPOFFSET_MASK); // Append variable part of TIM for (ii = wStartIndex, jj =0 ; ii <= wEndIndex; ii++, jj++) { pTIM->byVirtBitMap[jj] = pMgmt->abyPSTxMap[ii]; } // Aid = 0 don't used. pTIM->byVirtBitMap[0] &= ~BIT0; } /*+ * * Routine Description: * Constructs an Beacon frame( Ad-hoc mode) * * * Return Value: * PTR to frame; or NULL on allocation failure * -*/ static struct vnt_tx_mgmt *s_MgrMakeBeacon(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wCurrBeaconPeriod, u32 uCurrChannel, u16 wCurrATIMWinodw, PWLAN_IE_SSID pCurrSSID, u8 *pCurrBSSID, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_BEACON sFrame; u8 abyBroadcastAddr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; /* prepare beacon frame */ pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_BEACON_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure. sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_BEACON_FR_MAXLEN; vMgrEncodeBeacon(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_BEACON) )); if (pDevice->bEnablePSMode) { sFrame.pHdr->sA3.wFrameCtl |= cpu_to_le16((u16)WLAN_SET_FC_PWRMGT(1)); } memcpy( sFrame.pHdr->sA3.abyAddr1, abyBroadcastAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pCurrBSSID, WLAN_BSSID_LEN); *sFrame.pwBeaconInterval = cpu_to_le16(wCurrBeaconPeriod); *sFrame.pwCapInfo = cpu_to_le16(wCurrCapInfo); // Copy SSID sFrame.pSSID = (PWLAN_IE_SSID)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSSID, pCurrSSID, ((PWLAN_IE_SSID)pCurrSSID)->len + WLAN_IEHDR_LEN ); // Copy the rate set sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN ); // DS parameter if (pDevice->byBBType != BB_TYPE_11A) { sFrame.pDSParms = (PWLAN_IE_DS_PARMS)(sFrame.pBuf + sFrame.len); sFrame.len += (1) + WLAN_IEHDR_LEN; sFrame.pDSParms->byElementID = WLAN_EID_DS_PARMS; sFrame.pDSParms->len = 1; sFrame.pDSParms->byCurrChannel = (u8)uCurrChannel; } // TIM field if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { sFrame.pTIM = (PWLAN_IE_TIM)(sFrame.pBuf + sFrame.len); sFrame.pTIM->byElementID = WLAN_EID_TIM; s_vMgrFormatTIM(pMgmt, sFrame.pTIM); sFrame.len += (WLAN_IEHDR_LEN + sFrame.pTIM->len); } if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { // IBSS parameter sFrame.pIBSSParms = (PWLAN_IE_IBSS_PARMS)(sFrame.pBuf + sFrame.len); sFrame.len += (2) + WLAN_IEHDR_LEN; sFrame.pIBSSParms->byElementID = WLAN_EID_IBSS_PARMS; sFrame.pIBSSParms->len = 2; sFrame.pIBSSParms->wATIMWindow = wCurrATIMWinodw; if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) { /* RSN parameter */ sFrame.pRSNWPA = (PWLAN_IE_RSN_EXT)(sFrame.pBuf + sFrame.len); sFrame.pRSNWPA->byElementID = WLAN_EID_RSN_WPA; sFrame.pRSNWPA->len = 12; sFrame.pRSNWPA->abyOUI[0] = 0x00; sFrame.pRSNWPA->abyOUI[1] = 0x50; sFrame.pRSNWPA->abyOUI[2] = 0xf2; sFrame.pRSNWPA->abyOUI[3] = 0x01; sFrame.pRSNWPA->wVersion = 1; sFrame.pRSNWPA->abyMulticast[0] = 0x00; sFrame.pRSNWPA->abyMulticast[1] = 0x50; sFrame.pRSNWPA->abyMulticast[2] = 0xf2; if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) sFrame.pRSNWPA->abyMulticast[3] = 0x04;//AES else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) sFrame.pRSNWPA->abyMulticast[3] = 0x02;//TKIP else if (pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) sFrame.pRSNWPA->abyMulticast[3] = 0x01;//WEP40 else sFrame.pRSNWPA->abyMulticast[3] = 0x00;//NONE // Pairwise Key Cipher Suite sFrame.pRSNWPA->wPKCount = 0; // Auth Key Management Suite *((u16 *)(sFrame.pBuf + sFrame.len + sFrame.pRSNWPA->len))=0; sFrame.pRSNWPA->len +=2; // RSN Capabilites *((u16 *)(sFrame.pBuf + sFrame.len + sFrame.pRSNWPA->len))=0; sFrame.pRSNWPA->len +=2; sFrame.len += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; } } if (pMgmt->eCurrentPHYMode == PHY_TYPE_11G) { sFrame.pERP = (PWLAN_IE_ERP)(sFrame.pBuf + sFrame.len); sFrame.len += 1 + WLAN_IEHDR_LEN; sFrame.pERP->byElementID = WLAN_EID_ERP; sFrame.pERP->len = 1; sFrame.pERP->byContext = 0; if (pDevice->bProtectMode == true) sFrame.pERP->byContext |= WLAN_EID_ERP_USE_PROTECTION; if (pDevice->bNonERPPresent == true) sFrame.pERP->byContext |= WLAN_EID_ERP_NONERP_PRESENT; if (pDevice->bBarkerPreambleMd == true) sFrame.pERP->byContext |= WLAN_EID_ERP_BARKER_MODE; } if (((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len != 0) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN ); } // hostapd wpa/wpa2 IE if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnableHostapd == true)) { if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) { if (pMgmt->wWPAIELen != 0) { sFrame.pRSN = (PWLAN_IE_RSN)(sFrame.pBuf + sFrame.len); memcpy(sFrame.pRSN, pMgmt->abyWPAIE, pMgmt->wWPAIELen); sFrame.len += pMgmt->wWPAIELen; } } } /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Constructs an Prob-response frame * * * Return Value: * PTR to frame; or NULL on allocation failure * -*/ struct vnt_tx_mgmt *s_MgrMakeProbeResponse(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wCurrBeaconPeriod, u32 uCurrChannel, u16 wCurrATIMWinodw, u8 *pDstAddr, PWLAN_IE_SSID pCurrSSID, u8 *pCurrBSSID, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates, u8 byPHYType) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_PROBERESP sFrame; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_PROBERESP_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure. sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_PROBERESP_FR_MAXLEN; vMgrEncodeProbeResponse(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_PROBERESP) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pDstAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pCurrBSSID, WLAN_BSSID_LEN); *sFrame.pwBeaconInterval = cpu_to_le16(wCurrBeaconPeriod); *sFrame.pwCapInfo = cpu_to_le16(wCurrCapInfo); if (byPHYType == BB_TYPE_11B) { *sFrame.pwCapInfo &= cpu_to_le16((u16)~(WLAN_SET_CAP_INFO_SHORTSLOTTIME(1))); } // Copy SSID sFrame.pSSID = (PWLAN_IE_SSID)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSSID, pCurrSSID, ((PWLAN_IE_SSID)pCurrSSID)->len + WLAN_IEHDR_LEN ); // Copy the rate set sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN ); // DS parameter if (pDevice->byBBType != BB_TYPE_11A) { sFrame.pDSParms = (PWLAN_IE_DS_PARMS)(sFrame.pBuf + sFrame.len); sFrame.len += (1) + WLAN_IEHDR_LEN; sFrame.pDSParms->byElementID = WLAN_EID_DS_PARMS; sFrame.pDSParms->len = 1; sFrame.pDSParms->byCurrChannel = (u8)uCurrChannel; } if (pMgmt->eCurrMode != WMAC_MODE_ESS_AP) { // IBSS parameter sFrame.pIBSSParms = (PWLAN_IE_IBSS_PARMS)(sFrame.pBuf + sFrame.len); sFrame.len += (2) + WLAN_IEHDR_LEN; sFrame.pIBSSParms->byElementID = WLAN_EID_IBSS_PARMS; sFrame.pIBSSParms->len = 2; sFrame.pIBSSParms->wATIMWindow = 0; } if (pDevice->byBBType == BB_TYPE_11G) { sFrame.pERP = (PWLAN_IE_ERP)(sFrame.pBuf + sFrame.len); sFrame.len += 1 + WLAN_IEHDR_LEN; sFrame.pERP->byElementID = WLAN_EID_ERP; sFrame.pERP->len = 1; sFrame.pERP->byContext = 0; if (pDevice->bProtectMode == true) sFrame.pERP->byContext |= WLAN_EID_ERP_USE_PROTECTION; if (pDevice->bNonERPPresent == true) sFrame.pERP->byContext |= WLAN_EID_ERP_NONERP_PRESENT; if (pDevice->bBarkerPreambleMd == true) sFrame.pERP->byContext |= WLAN_EID_ERP_BARKER_MODE; } if (((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len != 0) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN ); } // hostapd wpa/wpa2 IE if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->bEnableHostapd == true)) { if (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE) { if (pMgmt->wWPAIELen != 0) { sFrame.pRSN = (PWLAN_IE_RSN)(sFrame.pBuf + sFrame.len); memcpy(sFrame.pRSN, pMgmt->abyWPAIE, pMgmt->wWPAIELen); sFrame.len += pMgmt->wWPAIELen; } } } // Adjust the length fields pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Constructs an association request frame * * * Return Value: * A ptr to frame or NULL on allocation failue * -*/ struct vnt_tx_mgmt *s_MgrMakeAssocRequest(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u8 *pDAddr, u16 wCurrCapInfo, u16 wListenInterval, PWLAN_IE_SSID pCurrSSID, PWLAN_IE_SUPP_RATES pCurrRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_ASSOCREQ sFrame; u8 *pbyIEs; u8 *pbyRSN; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_ASSOCREQ_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure. sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_ASSOCREQ_FR_MAXLEN; // format fixed field frame structure vMgrEncodeAssocRequest(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_ASSOCREQ) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pDAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); // Set the capability and listen interval *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo); *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval); // sFrame.len point to end of fixed field sFrame.pSSID = (PWLAN_IE_SSID)(sFrame.pBuf + sFrame.len); sFrame.len += pCurrSSID->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSSID, pCurrSSID, pCurrSSID->len + WLAN_IEHDR_LEN); pMgmt->sAssocInfo.AssocInfo.RequestIELength = pCurrSSID->len + WLAN_IEHDR_LEN; pMgmt->sAssocInfo.AssocInfo.OffsetRequestIEs = sizeof(NDIS_802_11_ASSOCIATION_INFORMATION); pbyIEs = pMgmt->sAssocInfo.abyIEs; memcpy(pbyIEs, pCurrSSID, pCurrSSID->len + WLAN_IEHDR_LEN); pbyIEs += pCurrSSID->len + WLAN_IEHDR_LEN; // Copy the rate set sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); if ((pDevice->byBBType == BB_TYPE_11B) && (pCurrRates->len > 4)) sFrame.len += 4 + WLAN_IEHDR_LEN; else sFrame.len += pCurrRates->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrRates, pCurrRates->len + WLAN_IEHDR_LEN); // Copy the extension rate set if ((pDevice->byBBType == BB_TYPE_11G) && (pCurrExtSuppRates->len > 0)) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += pCurrExtSuppRates->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, pCurrExtSuppRates->len + WLAN_IEHDR_LEN); } pMgmt->sAssocInfo.AssocInfo.RequestIELength += pCurrRates->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, pCurrRates, pCurrRates->len + WLAN_IEHDR_LEN); pbyIEs += pCurrRates->len + WLAN_IEHDR_LEN; if (((pMgmt->eAuthenMode == WMAC_AUTH_WPA) || (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) || (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE)) && (pMgmt->pCurrBSS != NULL)) { /* WPA IE */ sFrame.pRSNWPA = (PWLAN_IE_RSN_EXT)(sFrame.pBuf + sFrame.len); sFrame.pRSNWPA->byElementID = WLAN_EID_RSN_WPA; sFrame.pRSNWPA->len = 16; sFrame.pRSNWPA->abyOUI[0] = 0x00; sFrame.pRSNWPA->abyOUI[1] = 0x50; sFrame.pRSNWPA->abyOUI[2] = 0xf2; sFrame.pRSNWPA->abyOUI[3] = 0x01; sFrame.pRSNWPA->wVersion = 1; //Group Key Cipher Suite sFrame.pRSNWPA->abyMulticast[0] = 0x00; sFrame.pRSNWPA->abyMulticast[1] = 0x50; sFrame.pRSNWPA->abyMulticast[2] = 0xf2; if (pMgmt->byCSSGK == KEY_CTL_WEP) { sFrame.pRSNWPA->abyMulticast[3] = pMgmt->pCurrBSS->byGKType; } else if (pMgmt->byCSSGK == KEY_CTL_TKIP) { sFrame.pRSNWPA->abyMulticast[3] = WPA_TKIP; } else if (pMgmt->byCSSGK == KEY_CTL_CCMP) { sFrame.pRSNWPA->abyMulticast[3] = WPA_AESCCMP; } else { sFrame.pRSNWPA->abyMulticast[3] = WPA_NONE; } // Pairwise Key Cipher Suite sFrame.pRSNWPA->wPKCount = 1; sFrame.pRSNWPA->PKSList[0].abyOUI[0] = 0x00; sFrame.pRSNWPA->PKSList[0].abyOUI[1] = 0x50; sFrame.pRSNWPA->PKSList[0].abyOUI[2] = 0xf2; if (pMgmt->byCSSPK == KEY_CTL_TKIP) { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_TKIP; } else if (pMgmt->byCSSPK == KEY_CTL_CCMP) { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_AESCCMP; } else { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_NONE; } // Auth Key Management Suite pbyRSN = (u8 *)(sFrame.pBuf + sFrame.len + 2 + sFrame.pRSNWPA->len); *pbyRSN++=0x01; *pbyRSN++=0x00; *pbyRSN++=0x00; *pbyRSN++=0x50; *pbyRSN++=0xf2; if (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) { *pbyRSN++=WPA_AUTH_PSK; } else if (pMgmt->eAuthenMode == WMAC_AUTH_WPA) { *pbyRSN++=WPA_AUTH_IEEE802_1X; } else { *pbyRSN++=WPA_NONE; } sFrame.pRSNWPA->len +=6; // RSN Capabilites *pbyRSN++=0x00; *pbyRSN++=0x00; sFrame.pRSNWPA->len +=2; sFrame.len += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; // copy to AssocInfo. for OID_802_11_ASSOCIATION_INFORMATION pMgmt->sAssocInfo.AssocInfo.RequestIELength += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, sFrame.pRSNWPA, sFrame.pRSNWPA->len + WLAN_IEHDR_LEN); pbyIEs += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; } else if (((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) || (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) && (pMgmt->pCurrBSS != NULL)) { unsigned int ii; u16 * pwPMKID; // WPA IE sFrame.pRSN = (PWLAN_IE_RSN)(sFrame.pBuf + sFrame.len); sFrame.pRSN->byElementID = WLAN_EID_RSN; sFrame.pRSN->len = 6; //Version(2)+GK(4) sFrame.pRSN->wVersion = 1; //Group Key Cipher Suite sFrame.pRSN->abyRSN[0] = 0x00; sFrame.pRSN->abyRSN[1] = 0x0F; sFrame.pRSN->abyRSN[2] = 0xAC; if (pMgmt->byCSSGK == KEY_CTL_WEP) { sFrame.pRSN->abyRSN[3] = pMgmt->pCurrBSS->byCSSGK; } else if (pMgmt->byCSSGK == KEY_CTL_TKIP) { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_TKIP; } else if (pMgmt->byCSSGK == KEY_CTL_CCMP) { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_CCMP; } else { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_UNKNOWN; } // Pairwise Key Cipher Suite sFrame.pRSN->abyRSN[4] = 1; sFrame.pRSN->abyRSN[5] = 0; sFrame.pRSN->abyRSN[6] = 0x00; sFrame.pRSN->abyRSN[7] = 0x0F; sFrame.pRSN->abyRSN[8] = 0xAC; if (pMgmt->byCSSPK == KEY_CTL_TKIP) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_TKIP; } else if (pMgmt->byCSSPK == KEY_CTL_CCMP) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_CCMP; } else if (pMgmt->byCSSPK == KEY_CTL_NONE) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_USE_GROUP; } else { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_UNKNOWN; } sFrame.pRSN->len += 6; // Auth Key Management Suite sFrame.pRSN->abyRSN[10] = 1; sFrame.pRSN->abyRSN[11] = 0; sFrame.pRSN->abyRSN[12] = 0x00; sFrame.pRSN->abyRSN[13] = 0x0F; sFrame.pRSN->abyRSN[14] = 0xAC; if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK) { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_PSK; } else if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_802_1X; } else { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_UNKNOWN; } sFrame.pRSN->len +=6; // RSN Capabilites if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) { memcpy(&sFrame.pRSN->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2); } else { sFrame.pRSN->abyRSN[16] = 0; sFrame.pRSN->abyRSN[17] = 0; } sFrame.pRSN->len +=2; if ((pDevice->gsPMKID.BSSIDInfoCount > 0) && (pDevice->bRoaming == true) && (pMgmt->eAuthenMode == WMAC_AUTH_WPA2)) { // RSN PMKID pbyRSN = &sFrame.pRSN->abyRSN[18]; pwPMKID = (u16 *)pbyRSN; // Point to PMKID count *pwPMKID = 0; // Initialize PMKID count pbyRSN += 2; // Point to PMKID list for (ii = 0; ii < pDevice->gsPMKID.BSSIDInfoCount; ii++) { if (!memcmp(&pDevice->gsPMKID.BSSIDInfo[ii].BSSID[0], pMgmt->abyCurrBSSID, ETH_ALEN)) { (*pwPMKID)++; memcpy(pbyRSN, pDevice->gsPMKID.BSSIDInfo[ii].PMKID, 16); pbyRSN += 16; } } if (*pwPMKID != 0) { sFrame.pRSN->len += (2 + (*pwPMKID)*16); } } sFrame.len += sFrame.pRSN->len + WLAN_IEHDR_LEN; // copy to AssocInfo. for OID_802_11_ASSOCIATION_INFORMATION pMgmt->sAssocInfo.AssocInfo.RequestIELength += sFrame.pRSN->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, sFrame.pRSN, sFrame.pRSN->len + WLAN_IEHDR_LEN); pbyIEs += sFrame.pRSN->len + WLAN_IEHDR_LEN; } // Adjust the length fields pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Constructs an re-association request frame * * * Return Value: * A ptr to frame or NULL on allocation failure * -*/ struct vnt_tx_mgmt *s_MgrMakeReAssocRequest(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u8 *pDAddr, u16 wCurrCapInfo, u16 wListenInterval, PWLAN_IE_SSID pCurrSSID, PWLAN_IE_SUPP_RATES pCurrRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_REASSOCREQ sFrame; u8 *pbyIEs; u8 *pbyRSN; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_REASSOCREQ_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); /* Setup the sFrame structure. */ sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_REASSOCREQ_FR_MAXLEN; // format fixed field frame structure vMgrEncodeReassocRequest(&sFrame); /* Setup the header */ sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_REASSOCREQ) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pDAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); /* Set the capability and listen interval */ *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo); *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval); memcpy(sFrame.pAddrCurrAP, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); /* Copy the SSID */ /* sFrame.len point to end of fixed field */ sFrame.pSSID = (PWLAN_IE_SSID)(sFrame.pBuf + sFrame.len); sFrame.len += pCurrSSID->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSSID, pCurrSSID, pCurrSSID->len + WLAN_IEHDR_LEN); pMgmt->sAssocInfo.AssocInfo.RequestIELength = pCurrSSID->len + WLAN_IEHDR_LEN; pMgmt->sAssocInfo.AssocInfo.OffsetRequestIEs = sizeof(NDIS_802_11_ASSOCIATION_INFORMATION); pbyIEs = pMgmt->sAssocInfo.abyIEs; memcpy(pbyIEs, pCurrSSID, pCurrSSID->len + WLAN_IEHDR_LEN); pbyIEs += pCurrSSID->len + WLAN_IEHDR_LEN; /* Copy the rate set */ /* sFrame.len point to end of SSID */ sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += pCurrRates->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrRates, pCurrRates->len + WLAN_IEHDR_LEN); // Copy the extension rate set if ((pMgmt->eCurrentPHYMode == PHY_TYPE_11G) && (pCurrExtSuppRates->len > 0)) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += pCurrExtSuppRates->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, pCurrExtSuppRates->len + WLAN_IEHDR_LEN); } pMgmt->sAssocInfo.AssocInfo.RequestIELength += pCurrRates->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, pCurrRates, pCurrRates->len + WLAN_IEHDR_LEN); pbyIEs += pCurrRates->len + WLAN_IEHDR_LEN; if (((pMgmt->eAuthenMode == WMAC_AUTH_WPA) || (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) || (pMgmt->eAuthenMode == WMAC_AUTH_WPANONE)) && (pMgmt->pCurrBSS != NULL)) { /* WPA IE */ sFrame.pRSNWPA = (PWLAN_IE_RSN_EXT)(sFrame.pBuf + sFrame.len); sFrame.pRSNWPA->byElementID = WLAN_EID_RSN_WPA; sFrame.pRSNWPA->len = 16; sFrame.pRSNWPA->abyOUI[0] = 0x00; sFrame.pRSNWPA->abyOUI[1] = 0x50; sFrame.pRSNWPA->abyOUI[2] = 0xf2; sFrame.pRSNWPA->abyOUI[3] = 0x01; sFrame.pRSNWPA->wVersion = 1; //Group Key Cipher Suite sFrame.pRSNWPA->abyMulticast[0] = 0x00; sFrame.pRSNWPA->abyMulticast[1] = 0x50; sFrame.pRSNWPA->abyMulticast[2] = 0xf2; if (pMgmt->byCSSGK == KEY_CTL_WEP) { sFrame.pRSNWPA->abyMulticast[3] = pMgmt->pCurrBSS->byGKType; } else if (pMgmt->byCSSGK == KEY_CTL_TKIP) { sFrame.pRSNWPA->abyMulticast[3] = WPA_TKIP; } else if (pMgmt->byCSSGK == KEY_CTL_CCMP) { sFrame.pRSNWPA->abyMulticast[3] = WPA_AESCCMP; } else { sFrame.pRSNWPA->abyMulticast[3] = WPA_NONE; } // Pairwise Key Cipher Suite sFrame.pRSNWPA->wPKCount = 1; sFrame.pRSNWPA->PKSList[0].abyOUI[0] = 0x00; sFrame.pRSNWPA->PKSList[0].abyOUI[1] = 0x50; sFrame.pRSNWPA->PKSList[0].abyOUI[2] = 0xf2; if (pMgmt->byCSSPK == KEY_CTL_TKIP) { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_TKIP; } else if (pMgmt->byCSSPK == KEY_CTL_CCMP) { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_AESCCMP; } else { sFrame.pRSNWPA->PKSList[0].abyOUI[3] = WPA_NONE; } // Auth Key Management Suite pbyRSN = (u8 *)(sFrame.pBuf + sFrame.len + 2 + sFrame.pRSNWPA->len); *pbyRSN++=0x01; *pbyRSN++=0x00; *pbyRSN++=0x00; *pbyRSN++=0x50; *pbyRSN++=0xf2; if (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) { *pbyRSN++=WPA_AUTH_PSK; } else if (pMgmt->eAuthenMode == WMAC_AUTH_WPA) { *pbyRSN++=WPA_AUTH_IEEE802_1X; } else { *pbyRSN++=WPA_NONE; } sFrame.pRSNWPA->len +=6; // RSN Capabilites *pbyRSN++=0x00; *pbyRSN++=0x00; sFrame.pRSNWPA->len +=2; sFrame.len += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; // copy to AssocInfo. for OID_802_11_ASSOCIATION_INFORMATION pMgmt->sAssocInfo.AssocInfo.RequestIELength += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, sFrame.pRSNWPA, sFrame.pRSNWPA->len + WLAN_IEHDR_LEN); pbyIEs += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN; } else if (((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) || (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) && (pMgmt->pCurrBSS != NULL)) { unsigned int ii; u16 * pwPMKID; /* WPA IE */ sFrame.pRSN = (PWLAN_IE_RSN)(sFrame.pBuf + sFrame.len); sFrame.pRSN->byElementID = WLAN_EID_RSN; sFrame.pRSN->len = 6; //Version(2)+GK(4) sFrame.pRSN->wVersion = 1; //Group Key Cipher Suite sFrame.pRSN->abyRSN[0] = 0x00; sFrame.pRSN->abyRSN[1] = 0x0F; sFrame.pRSN->abyRSN[2] = 0xAC; if (pMgmt->byCSSGK == KEY_CTL_WEP) { sFrame.pRSN->abyRSN[3] = pMgmt->pCurrBSS->byCSSGK; } else if (pMgmt->byCSSGK == KEY_CTL_TKIP) { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_TKIP; } else if (pMgmt->byCSSGK == KEY_CTL_CCMP) { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_CCMP; } else { sFrame.pRSN->abyRSN[3] = WLAN_11i_CSS_UNKNOWN; } // Pairwise Key Cipher Suite sFrame.pRSN->abyRSN[4] = 1; sFrame.pRSN->abyRSN[5] = 0; sFrame.pRSN->abyRSN[6] = 0x00; sFrame.pRSN->abyRSN[7] = 0x0F; sFrame.pRSN->abyRSN[8] = 0xAC; if (pMgmt->byCSSPK == KEY_CTL_TKIP) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_TKIP; } else if (pMgmt->byCSSPK == KEY_CTL_CCMP) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_CCMP; } else if (pMgmt->byCSSPK == KEY_CTL_NONE) { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_USE_GROUP; } else { sFrame.pRSN->abyRSN[9] = WLAN_11i_CSS_UNKNOWN; } sFrame.pRSN->len += 6; // Auth Key Management Suite sFrame.pRSN->abyRSN[10] = 1; sFrame.pRSN->abyRSN[11] = 0; sFrame.pRSN->abyRSN[12] = 0x00; sFrame.pRSN->abyRSN[13] = 0x0F; sFrame.pRSN->abyRSN[14] = 0xAC; if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK) { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_PSK; } else if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_802_1X; } else { sFrame.pRSN->abyRSN[15] = WLAN_11i_AKMSS_UNKNOWN; } sFrame.pRSN->len +=6; // RSN Capabilites if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) { memcpy(&sFrame.pRSN->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2); } else { sFrame.pRSN->abyRSN[16] = 0; sFrame.pRSN->abyRSN[17] = 0; } sFrame.pRSN->len +=2; if ((pDevice->gsPMKID.BSSIDInfoCount > 0) && (pDevice->bRoaming == true) && (pMgmt->eAuthenMode == WMAC_AUTH_WPA2)) { // RSN PMKID pbyRSN = &sFrame.pRSN->abyRSN[18]; pwPMKID = (u16 *)pbyRSN; // Point to PMKID count *pwPMKID = 0; // Initialize PMKID count pbyRSN += 2; // Point to PMKID list for (ii = 0; ii < pDevice->gsPMKID.BSSIDInfoCount; ii++) { if (!memcmp(&pDevice->gsPMKID.BSSIDInfo[ii].BSSID[0], pMgmt->abyCurrBSSID, ETH_ALEN)) { (*pwPMKID)++; memcpy(pbyRSN, pDevice->gsPMKID.BSSIDInfo[ii].PMKID, 16); pbyRSN += 16; } } if (*pwPMKID != 0) { sFrame.pRSN->len += (2 + (*pwPMKID)*16); } } sFrame.len += sFrame.pRSN->len + WLAN_IEHDR_LEN; // copy to AssocInfo. for OID_802_11_ASSOCIATION_INFORMATION pMgmt->sAssocInfo.AssocInfo.RequestIELength += sFrame.pRSN->len + WLAN_IEHDR_LEN; memcpy(pbyIEs, sFrame.pRSN, sFrame.pRSN->len + WLAN_IEHDR_LEN); pbyIEs += sFrame.pRSN->len + WLAN_IEHDR_LEN; } /* Adjust the length fields */ pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Constructs an assoc-response frame * * * Return Value: * PTR to frame; or NULL on allocation failure * -*/ struct vnt_tx_mgmt *s_MgrMakeAssocResponse(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wAssocStatus, u16 wAssocAID, u8 *pDstAddr, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_ASSOCRESP sFrame; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_ASSOCREQ_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_REASSOCRESP_FR_MAXLEN; vMgrEncodeAssocResponse(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_ASSOCRESP) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pDstAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *sFrame.pwCapInfo = cpu_to_le16(wCurrCapInfo); *sFrame.pwStatus = cpu_to_le16(wAssocStatus); *sFrame.pwAid = cpu_to_le16((u16)(wAssocAID | BIT14 | BIT15)); // Copy the rate set sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN ); if (((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len != 0) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN ); } // Adjust the length fields pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Constructs an reassoc-response frame * * * Return Value: * PTR to frame; or NULL on allocation failure * -*/ struct vnt_tx_mgmt *s_MgrMakeReAssocResponse(struct vnt_private *pDevice, struct vnt_manager *pMgmt, u16 wCurrCapInfo, u16 wAssocStatus, u16 wAssocAID, u8 *pDstAddr, PWLAN_IE_SUPP_RATES pCurrSuppRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates) { struct vnt_tx_mgmt *pTxPacket = NULL; WLAN_FR_REASSOCRESP sFrame; pTxPacket = (struct vnt_tx_mgmt *)pMgmt->pbyMgmtPacketPool; memset(pTxPacket, 0, sizeof(struct vnt_tx_mgmt) + WLAN_ASSOCREQ_FR_MAXLEN); pTxPacket->p80211Header = (PUWLAN_80211HDR)((u8 *)pTxPacket + sizeof(struct vnt_tx_mgmt)); // Setup the sFrame structure sFrame.pBuf = (u8 *)pTxPacket->p80211Header; sFrame.len = WLAN_REASSOCRESP_FR_MAXLEN; vMgrEncodeReassocResponse(&sFrame); // Setup the header sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16( ( WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_REASSOCRESP) )); memcpy( sFrame.pHdr->sA3.abyAddr1, pDstAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); *sFrame.pwCapInfo = cpu_to_le16(wCurrCapInfo); *sFrame.pwStatus = cpu_to_le16(wAssocStatus); *sFrame.pwAid = cpu_to_le16((u16)(wAssocAID | BIT14 | BIT15)); // Copy the rate set sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pSuppRates, pCurrSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrSuppRates)->len + WLAN_IEHDR_LEN ); if (((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len != 0) { sFrame.pExtSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len); sFrame.len += ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN; memcpy(sFrame.pExtSuppRates, pCurrExtSuppRates, ((PWLAN_IE_SUPP_RATES)pCurrExtSuppRates)->len + WLAN_IEHDR_LEN ); } // Adjust the length fields pTxPacket->cbMPDULen = sFrame.len; pTxPacket->cbPayloadLen = sFrame.len - WLAN_HDR_ADDR3_LEN; return pTxPacket; } /*+ * * Routine Description: * Handles probe response management frames. * * * Return Value: * none. * -*/ static void s_vMgrRxProbeResponse(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { PKnownBSS pBSSList = NULL; WLAN_FR_PROBERESP sFrame; u8 byCurrChannel = pRxPacket->byRxChannel; ERPObject sERP; int bChannelHit = true; memset(&sFrame, 0, sizeof(WLAN_FR_PROBERESP)); // decode the frame sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeProbeResponse(&sFrame); if ((sFrame.pqwTimestamp == NULL) || (sFrame.pwBeaconInterval == NULL) || (sFrame.pwCapInfo == NULL) || (sFrame.pSSID == NULL) || (sFrame.pSuppRates == NULL)) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Probe resp:Fail addr:[%p]\n", pRxPacket->p80211Header); return; } if(sFrame.pSSID->len == 0) DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Rx Probe resp: SSID len = 0 \n"); //{{ RobertYu:20050201, 11a byCurrChannel != sFrame.pDSParms->byCurrChannel mapping if( byCurrChannel > CB_MAX_CHANNEL_24G ) { if (sFrame.pDSParms) { if (byCurrChannel == RFaby11aChannelIndex[sFrame.pDSParms->byCurrChannel-1]) bChannelHit = true; byCurrChannel = RFaby11aChannelIndex[sFrame.pDSParms->byCurrChannel-1]; } else { bChannelHit = true; } } else { if (sFrame.pDSParms) { if (byCurrChannel == sFrame.pDSParms->byCurrChannel) bChannelHit = true; byCurrChannel = sFrame.pDSParms->byCurrChannel; } else { bChannelHit = true; } } //RobertYu:20050201 if(ChannelExceedZoneType(pDevice,byCurrChannel)==true) return; if (sFrame.pERP) { sERP.byERP = sFrame.pERP->byContext; sERP.bERPExist = true; } else { sERP.bERPExist = false; sERP.byERP = 0; } // update or insert the bss pBSSList = BSSpAddrIsInBSSList((void *) pDevice, sFrame.pHdr->sA3.abyAddr3, sFrame.pSSID); if (pBSSList) { BSSbUpdateToBSSList((void *) pDevice, *sFrame.pqwTimestamp, *sFrame.pwBeaconInterval, *sFrame.pwCapInfo, byCurrChannel, bChannelHit, sFrame.pSSID, sFrame.pSuppRates, sFrame.pExtSuppRates, &sERP, sFrame.pRSN, sFrame.pRSNWPA, sFrame.pIE_Country, sFrame.pIE_Quiet, pBSSList, sFrame.len - WLAN_HDR_ADDR3_LEN, /* payload of probresponse */ sFrame.pHdr->sA4.abyAddr4, (void *) pRxPacket); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Probe resp/insert: RxChannel = : %d\n", byCurrChannel); BSSbInsertToBSSList((void *) pDevice, sFrame.pHdr->sA3.abyAddr3, *sFrame.pqwTimestamp, *sFrame.pwBeaconInterval, *sFrame.pwCapInfo, byCurrChannel, sFrame.pSSID, sFrame.pSuppRates, sFrame.pExtSuppRates, &sERP, sFrame.pRSN, sFrame.pRSNWPA, sFrame.pIE_Country, sFrame.pIE_Quiet, sFrame.len - WLAN_HDR_ADDR3_LEN, sFrame.pHdr->sA4.abyAddr4, /* payload of beacon */ (void *) pRxPacket); } return; } /*+ * * Routine Description:(AP)or(Ad-hoc STA) * Handles probe request management frames. * * * Return Value: * none. * -*/ static void s_vMgrRxProbeRequest(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { WLAN_FR_PROBEREQ sFrame; CMD_STATUS Status; struct vnt_tx_mgmt *pTxPacket; u8 byPHYType = BB_TYPE_11B; // STA in Ad-hoc mode: when latest TBTT beacon transmit success, // STA have to response this request. if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && pDevice->bBeaconSent)) { memset(&sFrame, 0, sizeof(WLAN_FR_PROBEREQ)); // decode the frame sFrame.len = pRxPacket->cbMPDULen; sFrame.pBuf = (u8 *)pRxPacket->p80211Header; vMgrDecodeProbeRequest(&sFrame); /* DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Probe request rx:MAC addr:%pM\n", sFrame.pHdr->sA3.abyAddr2); */ if (sFrame.pSSID->len != 0) { if (sFrame.pSSID->len != ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->len) return; if (memcmp(sFrame.pSSID->abySSID, ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->abySSID, ((PWLAN_IE_SSID)pMgmt->abyCurrSSID)->len) != 0) { return; } } if ((sFrame.pSuppRates->len > 4) || (sFrame.pExtSuppRates != NULL)) { byPHYType = BB_TYPE_11G; } // Probe response reply.. pTxPacket = s_MgrMakeProbeResponse ( pDevice, pMgmt, pMgmt->wCurrCapInfo, pMgmt->wCurrBeaconPeriod, pMgmt->uCurrChannel, 0, sFrame.pHdr->sA3.abyAddr2, (PWLAN_IE_SSID)pMgmt->abyCurrSSID, (u8 *)pMgmt->abyCurrBSSID, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates, byPHYType ); if (pTxPacket != NULL ){ /* send the frame */ Status = csMgmt_xmit(pDevice, pTxPacket); if (Status != CMD_STATUS_PENDING) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Probe response tx failed\n"); } else { // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Mgt:Probe response tx sending..\n"); } } } return; } /*+ * * Routine Description: * * Entry point for the reception and handling of 802.11 management * frames. Makes a determination of the frame type and then calls * the appropriate function. * * * Return Value: * none. * -*/ void vMgrRxManagePacket(struct vnt_private *pDevice, struct vnt_manager *pMgmt, struct vnt_rx_mgmt *pRxPacket) { int bInScan = false; u32 uNodeIndex = 0; NODE_STATE eNodeState = 0; CMD_STATUS Status; if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { if (BSSbIsSTAInNodeDB(pDevice, pRxPacket->p80211Header->sA3.abyAddr2, &uNodeIndex)) eNodeState = pMgmt->sNodeDBTable[uNodeIndex].eNodeState; } switch( WLAN_GET_FC_FSTYPE((pRxPacket->p80211Header->sA3.wFrameCtl)) ){ case WLAN_FSTYPE_ASSOCREQ: // Frame Clase = 2 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx assocreq\n"); if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (eNodeState < NODE_AUTH)) { // send deauth notification // reason = (6) class 2 received from nonauth sta vMgrDeAuthenBeginSta(pDevice, pMgmt, pRxPacket->p80211Header->sA3.abyAddr2, (6), &Status ); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wmgr: send vMgrDeAuthenBeginSta 1\n"); } else { s_vMgrRxAssocRequest(pDevice, pMgmt, pRxPacket, uNodeIndex); } break; case WLAN_FSTYPE_ASSOCRESP: // Frame Clase = 2 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx assocresp1\n"); s_vMgrRxAssocResponse(pDevice, pMgmt, pRxPacket, false); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx assocresp2\n"); break; case WLAN_FSTYPE_REASSOCREQ: // Frame Clase = 2 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx reassocreq\n"); // Todo: reassoc if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (eNodeState < NODE_AUTH)) { // send deauth notification // reason = (6) class 2 received from nonauth sta vMgrDeAuthenBeginSta(pDevice, pMgmt, pRxPacket->p80211Header->sA3.abyAddr2, (6), &Status ); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wmgr: send vMgrDeAuthenBeginSta 2\n"); } s_vMgrRxReAssocRequest(pDevice, pMgmt, pRxPacket, uNodeIndex); break; case WLAN_FSTYPE_REASSOCRESP: // Frame Clase = 2 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx reassocresp\n"); s_vMgrRxAssocResponse(pDevice, pMgmt, pRxPacket, true); break; case WLAN_FSTYPE_PROBEREQ: // Frame Clase = 0 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx probereq\n"); s_vMgrRxProbeRequest(pDevice, pMgmt, pRxPacket); break; case WLAN_FSTYPE_PROBERESP: // Frame Clase = 0 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx proberesp\n"); s_vMgrRxProbeResponse(pDevice, pMgmt, pRxPacket); break; case WLAN_FSTYPE_BEACON: // Frame Clase = 0 //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx beacon\n"); if (pMgmt->eScanState != WMAC_NO_SCANNING) { bInScan = true; } s_vMgrRxBeacon(pDevice, pMgmt, pRxPacket, bInScan); break; case WLAN_FSTYPE_ATIM: // Frame Clase = 1 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx atim\n"); break; case WLAN_FSTYPE_DISASSOC: // Frame Clase = 2 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx disassoc\n"); if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (eNodeState < NODE_AUTH)) { // send deauth notification // reason = (6) class 2 received from nonauth sta vMgrDeAuthenBeginSta(pDevice, pMgmt, pRxPacket->p80211Header->sA3.abyAddr2, (6), &Status ); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wmgr: send vMgrDeAuthenBeginSta 3\n"); } s_vMgrRxDisassociation(pDevice, pMgmt, pRxPacket); break; case WLAN_FSTYPE_AUTHEN: // Frame Clase = 1 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx authen\n"); s_vMgrRxAuthentication(pDevice, pMgmt, pRxPacket); break; case WLAN_FSTYPE_DEAUTHEN: // Frame Clase = 1 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx deauthen\n"); s_vMgrRxDeauthentication(pDevice, pMgmt, pRxPacket); break; default: DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "rx unknown mgmt\n"); } return; } /*+ * * Routine Description: * * * Prepare beacon to send * * Return Value: * true if success; false if failed. * -*/ int bMgrPrepareBeaconToSend(struct vnt_private *pDevice, struct vnt_manager *pMgmt) { struct vnt_tx_mgmt *pTxPacket; // pDevice->bBeaconBufReady = false; if (pDevice->bEncryptionEnable || pDevice->bEnable8021x){ pMgmt->wCurrCapInfo |= WLAN_SET_CAP_INFO_PRIVACY(1); } else { pMgmt->wCurrCapInfo &= ~WLAN_SET_CAP_INFO_PRIVACY(1); } pTxPacket = s_MgrMakeBeacon ( pDevice, pMgmt, pMgmt->wCurrCapInfo, pMgmt->wCurrBeaconPeriod, pMgmt->uCurrChannel, pMgmt->wCurrATIMWindow, //0, (PWLAN_IE_SSID)pMgmt->abyCurrSSID, (u8 *)pMgmt->abyCurrBSSID, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates, (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates ); if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->abyCurrBSSID[0] == 0)) return false; csBeacon_xmit(pDevice, pTxPacket); MACvRegBitsOn(pDevice, MAC_REG_TCR, TCR_AUTOBCNTX); return true; } /*+ * * Routine Description: * * Log a warning message based on the contents of the Status * Code field of an 802.11 management frame. Defines are * derived from 802.11-1997 SPEC. * * Return Value: * none. * -*/ static void s_vMgrLogStatus(struct vnt_manager *pMgmt, u16 wStatus) { switch( wStatus ){ case WLAN_MGMT_STATUS_UNSPEC_FAILURE: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Unspecified error.\n"); break; case WLAN_MGMT_STATUS_CAPS_UNSUPPORTED: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Can't support all requested capabilities.\n"); break; case WLAN_MGMT_STATUS_REASSOC_NO_ASSOC: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Reassoc denied, can't confirm original Association.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, undefine in spec\n"); break; case WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Peer doesn't support authen algorithm.\n"); break; case WLAN_MGMT_STATUS_RX_AUTH_NOSEQ: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Authen frame received out of sequence.\n"); break; case WLAN_MGMT_STATUS_CHALLENGE_FAIL: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Authen rejected, challenge failure.\n"); break; case WLAN_MGMT_STATUS_AUTH_TIMEOUT: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Authen rejected, timeout waiting for next frame.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, AP too busy.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_RATES: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, we haven't enough basic rates.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_SHORTPREAMBLE: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, we do not support short preamble.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_PBCC: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, we do not support PBCC.\n"); break; case WLAN_MGMT_STATUS_ASSOC_DENIED_AGILITY: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Status code == Assoc denied, we do not support channel agility.\n"); break; default: DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Unknown status code %d.\n", wStatus); break; } } /* * * Description: * Add BSSID in PMKID Candidate list. * * Parameters: * In: * hDeviceContext - device structure point * pbyBSSID - BSSID address for adding * wRSNCap - BSS's RSN capability * Out: * none * * Return Value: none. * -*/ int bAdd_PMKID_Candidate(struct vnt_private *pDevice, u8 *pbyBSSID, PSRSNCapObject psRSNCapObj) { PPMKID_CANDIDATE pCandidateList; int ii = 0; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"bAdd_PMKID_Candidate START: (%d)\n", (int)pDevice->gsPMKIDCandidate.NumCandidates); if ((pDevice == NULL) || (pbyBSSID == NULL) || (psRSNCapObj == NULL)) return false; if (pDevice->gsPMKIDCandidate.NumCandidates >= MAX_PMKIDLIST) return false; // Update Old Candidate for (ii = 0; ii < pDevice->gsPMKIDCandidate.NumCandidates; ii++) { pCandidateList = &pDevice->gsPMKIDCandidate.CandidateList[ii]; if (!memcmp(pCandidateList->BSSID, pbyBSSID, ETH_ALEN)) { if ((psRSNCapObj->bRSNCapExist == true) && (psRSNCapObj->wRSNCap & BIT0)) { pCandidateList->Flags |= NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED; } else { pCandidateList->Flags &= ~(NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED); } return true; } } // New Candidate pCandidateList = &pDevice->gsPMKIDCandidate.CandidateList[pDevice->gsPMKIDCandidate.NumCandidates]; if ((psRSNCapObj->bRSNCapExist == true) && (psRSNCapObj->wRSNCap & BIT0)) { pCandidateList->Flags |= NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED; } else { pCandidateList->Flags &= ~(NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED); } memcpy(pCandidateList->BSSID, pbyBSSID, ETH_ALEN); pDevice->gsPMKIDCandidate.NumCandidates++; DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"NumCandidates:%d\n", (int)pDevice->gsPMKIDCandidate.NumCandidates); return true; } /* * * Description: * Flush PMKID Candidate list. * * Parameters: * In: * hDeviceContext - device structure point * Out: * none * * Return Value: none. * -*/ void vFlush_PMKID_Candidate(struct vnt_private *pDevice) { if (pDevice == NULL) return; memset(&pDevice->gsPMKIDCandidate, 0, sizeof(SPMKIDCandidateEvent)); return; } static bool s_bCipherMatch ( PKnownBSS pBSSNode, NDIS_802_11_ENCRYPTION_STATUS EncStatus, u8 * pbyCCSPK, u8 * pbyCCSGK ) { u8 byMulticastCipher = KEY_CTL_INVALID; u8 byCipherMask = 0x00; int i; if (pBSSNode == NULL) return false; // check cap. of BSS if ((WLAN_GET_CAP_INFO_PRIVACY(pBSSNode->wCapInfo) != 0) && (EncStatus == Ndis802_11Encryption1Enabled)) { // default is WEP only byMulticastCipher = KEY_CTL_WEP; } if ((WLAN_GET_CAP_INFO_PRIVACY(pBSSNode->wCapInfo) != 0) && (pBSSNode->bWPA2Valid == true) && ((EncStatus == Ndis802_11Encryption3Enabled) || (EncStatus == Ndis802_11Encryption2Enabled))) { //WPA2 // check Group Key Cipher if ((pBSSNode->byCSSGK == WLAN_11i_CSS_WEP40) || (pBSSNode->byCSSGK == WLAN_11i_CSS_WEP104)) { byMulticastCipher = KEY_CTL_WEP; } else if (pBSSNode->byCSSGK == WLAN_11i_CSS_TKIP) { byMulticastCipher = KEY_CTL_TKIP; } else if (pBSSNode->byCSSGK == WLAN_11i_CSS_CCMP) { byMulticastCipher = KEY_CTL_CCMP; } else { byMulticastCipher = KEY_CTL_INVALID; } /* check Pairwise Key Cipher */ for (i = 0; i < pBSSNode->wCSSPKCount; i++) { if ((pBSSNode->abyCSSPK[i] == WLAN_11i_CSS_WEP40) || (pBSSNode->abyCSSPK[i] == WLAN_11i_CSS_WEP104)) { /* this should not happen as defined 802.11i */ byCipherMask |= 0x01; } else if (pBSSNode->abyCSSPK[i] == WLAN_11i_CSS_TKIP) { byCipherMask |= 0x02; } else if (pBSSNode->abyCSSPK[i] == WLAN_11i_CSS_CCMP) { byCipherMask |= 0x04; } else if (pBSSNode->abyCSSPK[i] == WLAN_11i_CSS_USE_GROUP) { /* use group key only ignore all others */ byCipherMask = 0; i = pBSSNode->wCSSPKCount; } } } else if ((WLAN_GET_CAP_INFO_PRIVACY(pBSSNode->wCapInfo) != 0) && (pBSSNode->bWPAValid == true) && ((EncStatus == Ndis802_11Encryption2Enabled) || (EncStatus == Ndis802_11Encryption3Enabled))) { //WPA // check Group Key Cipher if ((pBSSNode->byGKType == WPA_WEP40) || (pBSSNode->byGKType == WPA_WEP104)) { byMulticastCipher = KEY_CTL_WEP; } else if (pBSSNode->byGKType == WPA_TKIP) { byMulticastCipher = KEY_CTL_TKIP; } else if (pBSSNode->byGKType == WPA_AESCCMP) { byMulticastCipher = KEY_CTL_CCMP; } else { byMulticastCipher = KEY_CTL_INVALID; } /* check Pairwise Key Cipher */ for (i = 0; i < pBSSNode->wPKCount; i++) { if (pBSSNode->abyPKType[i] == WPA_TKIP) { byCipherMask |= 0x02; } else if (pBSSNode->abyPKType[i] == WPA_AESCCMP) { byCipherMask |= 0x04; } else if (pBSSNode->abyPKType[i] == WPA_NONE) { /* use group key only ignore all others */ byCipherMask = 0; i = pBSSNode->wPKCount; } } } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%d, %d, %d, %d, EncStatus:%d\n", byMulticastCipher, byCipherMask, pBSSNode->bWPAValid, pBSSNode->bWPA2Valid, EncStatus); // mask our cap. with BSS if (EncStatus == Ndis802_11Encryption1Enabled) { // For supporting Cisco migration mode, don't care pairwise key cipher //if ((byMulticastCipher == KEY_CTL_WEP) && // (byCipherMask == 0)) { if ((byMulticastCipher == KEY_CTL_WEP) && (byCipherMask == 0)) { *pbyCCSGK = KEY_CTL_WEP; *pbyCCSPK = KEY_CTL_NONE; return true; } else { return false; } } else if (EncStatus == Ndis802_11Encryption2Enabled) { if ((byMulticastCipher == KEY_CTL_TKIP) && (byCipherMask == 0)) { *pbyCCSGK = KEY_CTL_TKIP; *pbyCCSPK = KEY_CTL_NONE; return true; } else if ((byMulticastCipher == KEY_CTL_WEP) && ((byCipherMask & 0x02) != 0)) { *pbyCCSGK = KEY_CTL_WEP; *pbyCCSPK = KEY_CTL_TKIP; return true; } else if ((byMulticastCipher == KEY_CTL_TKIP) && ((byCipherMask & 0x02) != 0)) { *pbyCCSGK = KEY_CTL_TKIP; *pbyCCSPK = KEY_CTL_TKIP; return true; } else { return false; } } else if (EncStatus == Ndis802_11Encryption3Enabled) { if ((byMulticastCipher == KEY_CTL_CCMP) && (byCipherMask == 0)) { // When CCMP is enable, "Use group cipher suite" shall not be a valid option. return false; } else if ((byMulticastCipher == KEY_CTL_WEP) && ((byCipherMask & 0x04) != 0)) { *pbyCCSGK = KEY_CTL_WEP; *pbyCCSPK = KEY_CTL_CCMP; return true; } else if ((byMulticastCipher == KEY_CTL_TKIP) && ((byCipherMask & 0x04) != 0)) { *pbyCCSGK = KEY_CTL_TKIP; *pbyCCSPK = KEY_CTL_CCMP; return true; } else if ((byMulticastCipher == KEY_CTL_CCMP) && ((byCipherMask & 0x04) != 0)) { *pbyCCSGK = KEY_CTL_CCMP; *pbyCCSPK = KEY_CTL_CCMP; return true; } else { return false; } } return true; } |