| /* |
| * 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: bssdb.c |
| * |
| * Purpose: Handles the Basic Service Set & Node Database functions |
| * |
| * Functions: |
| * BSSpSearchBSSList - Search known BSS list for Desire SSID or BSSID |
| * BSSvClearBSSList - Clear BSS List |
| * BSSbInsertToBSSList - Insert a BSS set into known BSS list |
| * BSSbUpdateToBSSList - Update BSS set in known BSS list |
| * BSSbIsSTAInNodeDB - Search Node DB table to find the index of matched DstAddr |
| * BSSvCreateOneNode - Allocate an Node for Node DB |
| * BSSvUpdateAPNode - Update AP Node content in Index 0 of KnownNodeDB |
| * BSSvSecondCallBack - One second timer callback function to update Node DB info & AP link status |
| * BSSvUpdateNodeTxCounter - Update Tx attemps, Tx failure counter in Node DB for auto-fallback rate control |
| * |
| * Revision History: |
| * |
| * Author: Lyndon Chen |
| * |
| * Date: July 17, 2002 |
| */ |
| |
| #include "tmacro.h" |
| #include "tether.h" |
| #include "device.h" |
| #include "80211hdr.h" |
| #include "bssdb.h" |
| #include "wmgr.h" |
| #include "datarate.h" |
| #include "desc.h" |
| #include "wcmd.h" |
| #include "wpa.h" |
| #include "baseband.h" |
| #include "rf.h" |
| #include "card.h" |
| #include "mac.h" |
| #include "wpa2.h" |
| #include "usbpipe.h" |
| #include "iowpa.h" |
| #include "power.h" |
| |
| static int msglevel = MSG_LEVEL_INFO; |
| /* static int msglevel = MSG_LEVEL_DEBUG; */ |
| |
| static const u16 awHWRetry0[5][5] = { |
| {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M}, |
| {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M}, |
| {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M}, |
| {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M}, |
| {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M} |
| }; |
| static const u16 awHWRetry1[5][5] = { |
| {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M}, |
| {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M}, |
| {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M}, |
| {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M}, |
| {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M} |
| }; |
| |
| static void s_vCheckSensitivity(struct vnt_private *pDevice); |
| static void s_vCheckPreEDThreshold(struct vnt_private *pDevice); |
| static void s_uCalculateLinkQual(struct vnt_private *pDevice); |
| |
| /* |
| * Routine Description: |
| * Search known BSS list for Desire SSID or BSSID. |
| * |
| * Return Value: |
| * PTR to KnownBSS or NULL |
| */ |
| PKnownBSS BSSpSearchBSSList(struct vnt_private *pDevice, |
| u8 *pbyDesireBSSID, u8 *pbyDesireSSID, |
| CARD_PHY_TYPE ePhyType) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| u8 *pbyBSSID = NULL; |
| PWLAN_IE_SSID pSSID = NULL; |
| PKnownBSS pCurrBSS = NULL; |
| PKnownBSS pSelect = NULL; |
| u8 ZeroBSSID[WLAN_BSSID_LEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| int ii = 0; |
| int jj = 0; |
| |
| if (pbyDesireBSSID) { |
| DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO |
| "BSSpSearchBSSList BSSID[%pM]\n", pbyDesireBSSID); |
| if (!is_broadcast_ether_addr(pbyDesireBSSID) && |
| memcmp(pbyDesireBSSID, ZeroBSSID, 6) != 0) |
| pbyBSSID = pbyDesireBSSID; |
| } |
| if (pbyDesireSSID && |
| ((PWLAN_IE_SSID) pbyDesireSSID)->len != 0) |
| pSSID = (PWLAN_IE_SSID) pbyDesireSSID; |
| |
| if (pbyBSSID && pDevice->bRoaming == false) { |
| /* match BSSID first */ |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) { |
| pCurrBSS = &(pMgmt->sBSSList[ii]); |
| |
| pCurrBSS->bSelected = false; |
| |
| if (pCurrBSS->bActive && |
| pCurrBSS->bSelected == false && |
| ether_addr_equal(pCurrBSS->abyBSSID, pbyBSSID)) { |
| if (pSSID) { |
| /* compare ssid */ |
| if (!memcmp(pSSID->abySSID, |
| ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID, |
| pSSID->len) && |
| (pMgmt->eConfigMode == WMAC_CONFIG_AUTO || |
| (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA && |
| WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) || |
| (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA && |
| WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)))) { |
| |
| pCurrBSS->bSelected = true; |
| return pCurrBSS; |
| } |
| } else if (pMgmt->eConfigMode == WMAC_CONFIG_AUTO || |
| (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA && |
| WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) || |
| (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA && |
| WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))) { |
| pCurrBSS->bSelected = true; |
| return pCurrBSS; |
| } |
| } |
| } |
| } else { |
| /* ignore BSSID */ |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) { |
| pCurrBSS = &(pMgmt->sBSSList[ii]); |
| |
| /* 2007-0721-01<Mark>by MikeLiu |
| * if ((pCurrBSS->bActive) && |
| * (pCurrBSS->bSelected == false)) { */ |
| |
| pCurrBSS->bSelected = false; |
| if (pCurrBSS->bActive) { |
| |
| if (pSSID && |
| /* matched SSID */ |
| (memcmp(pSSID->abySSID, |
| ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID, |
| pSSID->len) || |
| pSSID->len != |
| ((PWLAN_IE_SSID) pCurrBSS->abySSID)->len)) { |
| /* SSID not match skip this BSS */ |
| continue; |
| } |
| |
| if ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA && |
| WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) || |
| (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA && |
| WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo))) { |
| /* Type not match skip this BSS */ |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "BSS type mismatch.... Config[%d] BSS[0x%04x]\n", |
| pMgmt->eConfigMode, |
| pCurrBSS->wCapInfo); |
| continue; |
| } |
| |
| if (ePhyType != PHY_TYPE_AUTO && |
| ((ePhyType == PHY_TYPE_11A && |
| PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse) || |
| (ePhyType != PHY_TYPE_11A && |
| PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) { |
| /* PhyType not match skip this BSS */ |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Physical type mismatch.... ePhyType[%d] BSS[%d]\n", |
| ePhyType, |
| pCurrBSS->eNetworkTypeInUse); |
| continue; |
| } |
| |
| pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel; |
| DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO |
| "BSSpSearchBSSList pSelect1[%pM]\n", |
| pCurrBSS->abyBSSID); |
| jj++; |
| |
| if (!pSelect) |
| pSelect = pCurrBSS; |
| /* compare RSSI, select the strongest signal */ |
| else if (pCurrBSS->uRSSI < pSelect->uRSSI) |
| pSelect = pCurrBSS; |
| } |
| } |
| |
| pDevice->bSameBSSMaxNum = jj; |
| |
| if (pSelect) { |
| pSelect->bSelected = true; |
| if (pDevice->bRoaming == false) { |
| /* Einsn Add @20070907 */ |
| memcpy(pbyDesireSSID, |
| pCurrBSS->abySSID, |
| WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1); |
| } |
| |
| return pSelect; |
| } |
| } |
| return NULL; |
| |
| } |
| |
| /* |
| * Routine Description: |
| * Clear BSS List |
| * |
| * Return Value: |
| * None. |
| */ |
| void BSSvClearBSSList(struct vnt_private *pDevice, int bKeepCurrBSSID) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| int ii; |
| |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) { |
| if (bKeepCurrBSSID && |
| pMgmt->sBSSList[ii].bActive && |
| ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID, |
| pMgmt->abyCurrBSSID)) { |
| |
| /* mike mark: |
| * there are two BSSID's in list. If that AP is |
| * in hidden ssid mode, one SSID is null, but |
| * other's might not be obvious, so if it |
| * associate's with your STA, you must keep the |
| * two of them!! bKeepCurrBSSID = false; |
| */ |
| |
| continue; |
| } |
| |
| pMgmt->sBSSList[ii].bActive = false; |
| memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS)); |
| } |
| BSSvClearAnyBSSJoinRecord(pDevice); |
| } |
| |
| /* |
| * Routine Description: |
| * search BSS list by BSSID & SSID if matched |
| * |
| * Return Value: |
| * true if found. |
| */ |
| PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *pDevice, |
| u8 *abyBSSID, |
| PWLAN_IE_SSID pSSID) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| PKnownBSS pBSSList = NULL; |
| int ii; |
| |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) { |
| pBSSList = &(pMgmt->sBSSList[ii]); |
| if (pBSSList->bActive && |
| ether_addr_equal(pBSSList->abyBSSID, abyBSSID) && |
| pSSID->len == ((PWLAN_IE_SSID) pBSSList->abySSID)->len && |
| memcmp(pSSID->abySSID, |
| ((PWLAN_IE_SSID) pBSSList->abySSID)->abySSID, |
| pSSID->len) == 0) |
| return pBSSList; |
| } |
| |
| return NULL; |
| } |
| |
| /* |
| * Routine Description: |
| * Insert a BSS set into known BSS list |
| * |
| * Return Value: |
| * true if success. |
| */ |
| int BSSbInsertToBSSList(struct vnt_private *pDevice, |
| u8 *abyBSSIDAddr, |
| u64 qwTimestamp, |
| u16 wBeaconInterval, |
| u16 wCapInfo, |
| u8 byCurrChannel, |
| PWLAN_IE_SSID pSSID, |
| PWLAN_IE_SUPP_RATES pSuppRates, |
| PWLAN_IE_SUPP_RATES pExtSuppRates, |
| PERPObject psERP, |
| PWLAN_IE_RSN pRSN, |
| PWLAN_IE_RSN_EXT pRSNWPA, |
| PWLAN_IE_COUNTRY pIE_Country, |
| PWLAN_IE_QUIET pIE_Quiet, |
| u32 uIELength, |
| u8 *pbyIEs, |
| void *pRxPacketContext) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| struct vnt_rx_mgmt *pRxPacket = |
| (struct vnt_rx_mgmt *) pRxPacketContext; |
| PKnownBSS pBSSList = NULL; |
| unsigned int ii; |
| bool bParsingQuiet = false; |
| |
| pBSSList = (PKnownBSS) &(pMgmt->sBSSList[0]); |
| |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) { |
| pBSSList = (PKnownBSS) &(pMgmt->sBSSList[ii]); |
| if (!pBSSList->bActive) |
| break; |
| } |
| |
| if (ii == MAX_BSS_NUM) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Get free KnowBSS node failed.\n"); |
| return false; |
| } |
| /* save the BSS info */ |
| pBSSList->bActive = true; |
| memcpy(pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN); |
| pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp); |
| pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval); |
| pBSSList->wCapInfo = cpu_to_le16(wCapInfo); |
| pBSSList->uClearCount = 0; |
| |
| if (pSSID->len > WLAN_SSID_MAXLEN) |
| pSSID->len = WLAN_SSID_MAXLEN; |
| memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN); |
| |
| pBSSList->uChannel = byCurrChannel; |
| |
| if (pSuppRates->len > WLAN_RATES_MAXLEN) |
| pSuppRates->len = WLAN_RATES_MAXLEN; |
| memcpy(pBSSList->abySuppRates, pSuppRates, |
| pSuppRates->len + WLAN_IEHDR_LEN); |
| |
| if (pExtSuppRates) { |
| if (pExtSuppRates->len > WLAN_RATES_MAXLEN) |
| pExtSuppRates->len = WLAN_RATES_MAXLEN; |
| memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, |
| pExtSuppRates->len + WLAN_IEHDR_LEN); |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "BSSbInsertToBSSList: pExtSuppRates->len = %d\n", |
| pExtSuppRates->len); |
| |
| } else { |
| memset(pBSSList->abyExtSuppRates, 0, |
| WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); |
| } |
| pBSSList->sERP.byERP = psERP->byERP; |
| pBSSList->sERP.bERPExist = psERP->bERPExist; |
| |
| /* Check if BSS is 802.11a/b/g */ |
| if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11A; |
| else if (pBSSList->sERP.bERPExist == true) |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11G; |
| else |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11B; |
| |
| pBSSList->byRxRate = pRxPacket->byRxRate; |
| pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF; |
| pBSSList->uRSSI = pRxPacket->uRSSI; |
| pBSSList->bySQ = pRxPacket->bySQ; |
| |
| if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA && |
| pMgmt->eCurrState == WMAC_STATE_ASSOC && |
| /* assoc with BSS */ |
| pBSSList == pMgmt->pCurrBSS) |
| bParsingQuiet = true; |
| |
| WPA_ClearRSN(pBSSList); |
| |
| if (pRSNWPA) { |
| unsigned int uLen = pRSNWPA->len + 2; |
| |
| if (uLen <= (uIELength - |
| (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) { |
| pBSSList->wWPALen = uLen; |
| memcpy(pBSSList->byWPAIE, pRSNWPA, uLen); |
| WPA_ParseRSN(pBSSList, pRSNWPA); |
| } |
| } |
| |
| WPA2_ClearRSN(pBSSList); |
| |
| if (pRSN) { |
| unsigned int uLen = pRSN->len + 2; |
| |
| if (uLen <= (uIELength - |
| (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) { |
| pBSSList->wRSNLen = uLen; |
| memcpy(pBSSList->byRSNIE, pRSN, uLen); |
| WPA2vParseRSN(pBSSList, pRSN); |
| } |
| } |
| |
| if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2 || |
| pBSSList->bWPA2Valid == true) { |
| |
| PSKeyItem pTransmitKey = NULL; |
| bool bIs802_1x = false; |
| |
| for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii++) { |
| if (pBSSList->abyAKMSSAuthType[ii] == |
| WLAN_11i_AKMSS_802_1X) { |
| bIs802_1x = true; |
| break; |
| } |
| } |
| if (bIs802_1x == true && |
| pSSID->len == ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->len && |
| !memcmp(pSSID->abySSID, |
| ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->abySSID, |
| pSSID->len)) { |
| |
| bAdd_PMKID_Candidate((void *) pDevice, |
| pBSSList->abyBSSID, |
| &pBSSList->sRSNCapObj); |
| |
| if (pDevice->bLinkPass == true && |
| pMgmt->eCurrState == WMAC_STATE_ASSOC && |
| (KeybGetTransmitKey(&(pDevice->sKey), |
| pDevice->abyBSSID, |
| PAIRWISE_KEY, |
| &pTransmitKey) == true || |
| KeybGetTransmitKey(&(pDevice->sKey), |
| pDevice->abyBSSID, |
| GROUP_KEY, |
| &pTransmitKey) == true)) { |
| pDevice->gsPMKIDCandidate.StatusType = |
| Ndis802_11StatusType_PMKID_CandidateList; |
| pDevice->gsPMKIDCandidate.Version = 1; |
| |
| |
| } |
| } |
| } |
| |
| /* Monitor if RSSI is too strong. */ |
| pBSSList->byRSSIStatCnt = 0; |
| |
| vnt_rf_rssi_to_dbm(pDevice, (u8)pRxPacket->uRSSI, &pBSSList->ldBmMAX); |
| |
| pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX; |
| pBSSList->ldBmAverRange = pBSSList->ldBmMAX; |
| for (ii = 1; ii < RSSI_STAT_COUNT; ii++) |
| pBSSList->ldBmAverage[ii] = 0; |
| |
| pBSSList->uIELength = uIELength; |
| if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN) |
| pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN; |
| memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength); |
| |
| return true; |
| } |
| |
| /* |
| * Routine Description: |
| * Update BSS set in known BSS list |
| * |
| * Return Value: |
| * true if success. |
| */ |
| /* TODO: input structure modify */ |
| int BSSbUpdateToBSSList(struct vnt_private *pDevice, |
| u64 qwTimestamp, |
| u16 wBeaconInterval, |
| u16 wCapInfo, |
| u8 byCurrChannel, |
| int bChannelHit, |
| PWLAN_IE_SSID pSSID, |
| PWLAN_IE_SUPP_RATES pSuppRates, |
| PWLAN_IE_SUPP_RATES pExtSuppRates, |
| PERPObject psERP, |
| PWLAN_IE_RSN pRSN, |
| PWLAN_IE_RSN_EXT pRSNWPA, |
| PWLAN_IE_COUNTRY pIE_Country, |
| PWLAN_IE_QUIET pIE_Quiet, |
| PKnownBSS pBSSList, |
| u32 uIELength, |
| u8 *pbyIEs, |
| void *pRxPacketContext) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| struct vnt_rx_mgmt *pRxPacket = |
| (struct vnt_rx_mgmt *) pRxPacketContext; |
| int ii, jj; |
| signed long ldBm, ldBmSum; |
| bool bParsingQuiet = false; |
| |
| if (!pBSSList) |
| return false; |
| |
| pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp); |
| |
| pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval); |
| pBSSList->wCapInfo = cpu_to_le16(wCapInfo); |
| pBSSList->uClearCount = 0; |
| pBSSList->uChannel = byCurrChannel; |
| |
| if (pSSID->len > WLAN_SSID_MAXLEN) |
| pSSID->len = WLAN_SSID_MAXLEN; |
| |
| if (pSSID->len != 0 && pSSID->abySSID[0] != 0) |
| memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN); |
| memcpy(pBSSList->abySuppRates, pSuppRates, |
| pSuppRates->len + WLAN_IEHDR_LEN); |
| |
| if (pExtSuppRates) |
| memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, |
| pExtSuppRates->len + WLAN_IEHDR_LEN); |
| else |
| memset(pBSSList->abyExtSuppRates, 0, |
| WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1); |
| pBSSList->sERP.byERP = psERP->byERP; |
| pBSSList->sERP.bERPExist = psERP->bERPExist; |
| |
| /* Check if BSS is 802.11a/b/g */ |
| if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11A; |
| else if (pBSSList->sERP.bERPExist == true) |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11G; |
| else |
| pBSSList->eNetworkTypeInUse = PHY_TYPE_11B; |
| |
| pBSSList->byRxRate = pRxPacket->byRxRate; |
| pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF; |
| if (bChannelHit) |
| pBSSList->uRSSI = pRxPacket->uRSSI; |
| pBSSList->bySQ = pRxPacket->bySQ; |
| |
| if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA && |
| pMgmt->eCurrState == WMAC_STATE_ASSOC && |
| /* assoc with BSS */ |
| pBSSList == pMgmt->pCurrBSS) |
| bParsingQuiet = true; |
| |
| WPA_ClearRSN(pBSSList); /* mike update */ |
| |
| if (pRSNWPA) { |
| unsigned int uLen = pRSNWPA->len + 2; |
| if (uLen <= (uIELength - |
| (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) { |
| pBSSList->wWPALen = uLen; |
| memcpy(pBSSList->byWPAIE, pRSNWPA, uLen); |
| WPA_ParseRSN(pBSSList, pRSNWPA); |
| } |
| } |
| |
| WPA2_ClearRSN(pBSSList); /* mike update */ |
| |
| if (pRSN) { |
| unsigned int uLen = pRSN->len + 2; |
| if (uLen <= (uIELength - |
| (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) { |
| pBSSList->wRSNLen = uLen; |
| memcpy(pBSSList->byRSNIE, pRSN, uLen); |
| WPA2vParseRSN(pBSSList, pRSN); |
| } |
| } |
| |
| if (pRxPacket->uRSSI != 0) { |
| vnt_rf_rssi_to_dbm(pDevice, (u8)pRxPacket->uRSSI, &ldBm); |
| /* Monitor if RSSI is too strong. */ |
| pBSSList->byRSSIStatCnt++; |
| pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT; |
| pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm; |
| ldBmSum = 0; |
| for (ii = 0, jj = 0; ii < RSSI_STAT_COUNT; ii++) { |
| if (pBSSList->ldBmAverage[ii] != 0) { |
| pBSSList->ldBmMAX = |
| max(pBSSList->ldBmAverage[ii], ldBm); |
| ldBmSum += |
| pBSSList->ldBmAverage[ii]; |
| jj++; |
| } |
| } |
| pBSSList->ldBmAverRange = ldBmSum / jj; |
| } |
| |
| pBSSList->uIELength = uIELength; |
| if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN) |
| pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN; |
| memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength); |
| |
| return true; |
| } |
| |
| /* |
| * Routine Description: |
| * Search Node DB table to find the index of matched DstAddr |
| * |
| * Return Value: |
| * None |
| */ |
| int BSSbIsSTAInNodeDB(struct vnt_private *pDevice, |
| u8 *abyDstAddr, |
| u32 *puNodeIndex) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| unsigned int ii; |
| |
| /* Index = 0 reserved for AP Node */ |
| for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) { |
| if (pMgmt->sNodeDBTable[ii].bActive && |
| ether_addr_equal(abyDstAddr, |
| pMgmt->sNodeDBTable[ii].abyMACAddr)) { |
| *puNodeIndex = ii; |
| return true; |
| } |
| } |
| |
| return false; |
| }; |
| |
| /* |
| * Routine Description: |
| * Find an empty node and allocate it; if no empty node |
| * is found, then use the most inactive one. |
| * |
| * Return Value: |
| * None |
| */ |
| void BSSvCreateOneNode(struct vnt_private *pDevice, u32 *puNodeIndex) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| int ii; |
| u32 BigestCount = 0; |
| u32 SelectIndex; |
| struct sk_buff *skb; |
| |
| /* Index = 0 reserved for AP Node (In STA mode) |
| Index = 0 reserved for Broadcast/MultiCast (In AP mode) */ |
| SelectIndex = 1; |
| for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) { |
| if (pMgmt->sNodeDBTable[ii].bActive) { |
| if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) { |
| BigestCount = |
| pMgmt->sNodeDBTable[ii].uInActiveCount; |
| SelectIndex = ii; |
| } |
| } else { |
| break; |
| } |
| } |
| |
| /* if not found replace uInActiveCount with the largest one. */ |
| if (ii == (MAX_NODE_NUM + 1)) { |
| *puNodeIndex = SelectIndex; |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Replace inactive node = %d\n", SelectIndex); |
| /* clear ps buffer */ |
| if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next) { |
| while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue))) |
| dev_kfree_skb(skb); |
| } |
| } else { |
| *puNodeIndex = ii; |
| } |
| |
| memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB)); |
| pMgmt->sNodeDBTable[*puNodeIndex].bActive = true; |
| pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND; |
| /* for AP mode PS queue */ |
| skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue); |
| pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0; |
| pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0; |
| DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii); |
| } |
| |
| /* |
| * Routine Description: |
| * Remove Node by NodeIndex |
| * |
| * |
| * Return Value: |
| * None |
| */ |
| void BSSvRemoveOneNode(struct vnt_private *pDevice, u32 uNodeIndex) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80}; |
| struct sk_buff *skb; |
| |
| while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue))) |
| dev_kfree_skb(skb); |
| /* clear context */ |
| memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB)); |
| /* clear tx bit map */ |
| pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &= |
| ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7]; |
| } |
| |
| /* |
| * Routine Description: |
| * Update AP Node content in Index 0 of KnownNodeDB |
| * |
| * |
| * Return Value: |
| * None |
| */ |
| void BSSvUpdateAPNode(struct vnt_private *pDevice, |
| u16 *pwCapInfo, |
| PWLAN_IE_SUPP_RATES pSuppRates, |
| PWLAN_IE_SUPP_RATES pExtSuppRates) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| u32 uRateLen = WLAN_RATES_MAXLEN; |
| |
| memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB)); |
| |
| pMgmt->sNodeDBTable[0].bActive = true; |
| if (pDevice->byBBType == BB_TYPE_11B) |
| uRateLen = WLAN_RATES_MAXLEN_11B; |
| pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pSuppRates, |
| (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates, |
| uRateLen); |
| pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pExtSuppRates, |
| (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)); |
| memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID, |
| WLAN_ADDR_LEN); |
| pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate; |
| pMgmt->sNodeDBTable[0].bShortPreamble = |
| WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo); |
| pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND; |
| /* Auto rate fallback function initiation. |
| * RATEbInit(pDevice); */ |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO"pMgmt->sNodeDBTable[0].wTxDataRate = %d\n", |
| pMgmt->sNodeDBTable[0].wTxDataRate); |
| |
| } |
| |
| /* |
| * Routine Description: |
| * Add Multicast Node content in Index 0 of KnownNodeDB |
| * |
| * |
| * Return Value: |
| * None |
| */ |
| void BSSvAddMulticastNode(struct vnt_private *pDevice) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| |
| memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB)); |
| |
| memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN); |
| pMgmt->sNodeDBTable[0].bActive = true; |
| pMgmt->sNodeDBTable[0].bPSEnable = false; |
| skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue); |
| 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)); |
| pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate; |
| pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND; |
| |
| } |
| |
| /* |
| * Routine Description: |
| * |
| * |
| * Second call back function to update Node DB info & AP link status |
| * |
| * |
| * Return Value: |
| * none. |
| */ |
| void BSSvSecondCallBack(struct work_struct *work) |
| { |
| struct vnt_private *pDevice = container_of(work, |
| struct vnt_private, second_callback_work.work); |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| int ii; |
| PWLAN_IE_SSID pItemSSID, pCurrSSID; |
| u32 uSleepySTACnt = 0; |
| u32 uNonShortSlotSTACnt = 0; |
| u32 uLongPreambleSTACnt = 0; |
| |
| if (pDevice->Flags & fMP_DISCONNECTED) |
| return; |
| |
| pDevice->uAssocCount = 0; |
| |
| /* Power Saving Mode Tx Burst */ |
| if (pDevice->bEnablePSMode == true) { |
| pDevice->ulPSModeWaitTx++; |
| if (pDevice->ulPSModeWaitTx >= 2) { |
| pDevice->ulPSModeWaitTx = 0; |
| pDevice->bPSModeTxBurst = false; |
| } |
| } |
| |
| pDevice->byERPFlag &= |
| ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1)); |
| |
| if (pDevice->wUseProtectCntDown > 0) { |
| pDevice->wUseProtectCntDown--; |
| } else { |
| /* disable protect mode */ |
| pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1)); |
| } |
| |
| if (pDevice->byReAssocCount > 0) { |
| pDevice->byReAssocCount++; |
| if (pDevice->byReAssocCount > 10 && |
| pDevice->bLinkPass != true) { /* 10 sec timeout */ |
| printk("Re-association timeout!!!\n"); |
| pDevice->byReAssocCount = 0; |
| /* 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 if (pDevice->bLinkPass == true) { |
| pDevice->byReAssocCount = 0; |
| } |
| } |
| |
| pMgmt->eLastState = pMgmt->eCurrState; |
| |
| s_uCalculateLinkQual(pDevice); |
| |
| for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) { |
| |
| if (pMgmt->sNodeDBTable[ii].bActive) { |
| /* Increase in-activity counter */ |
| pMgmt->sNodeDBTable[ii].uInActiveCount++; |
| |
| if (ii > 0) { |
| if (pMgmt->sNodeDBTable[ii].uInActiveCount > |
| MAX_INACTIVE_COUNT) { |
| BSSvRemoveOneNode(pDevice, ii); |
| DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO |
| "Inactive timeout [%d] sec, STA index = [%d] remove\n", |
| MAX_INACTIVE_COUNT, ii); |
| continue; |
| } |
| |
| if (pMgmt->sNodeDBTable[ii].eNodeState >= |
| NODE_ASSOC) { |
| |
| pDevice->uAssocCount++; |
| |
| /* check if Non ERP exist */ |
| if (pMgmt->sNodeDBTable[ii].uInActiveCount < |
| ERP_RECOVER_COUNT) { |
| if (!pMgmt->sNodeDBTable[ii].bShortPreamble) { |
| pDevice->byERPFlag |= |
| WLAN_SET_ERP_BARKER_MODE(1); |
| uLongPreambleSTACnt++; |
| } |
| if (!pMgmt->sNodeDBTable[ii].bERPExist) { |
| pDevice->byERPFlag |= |
| WLAN_SET_ERP_NONERP_PRESENT(1); |
| pDevice->byERPFlag |= |
| WLAN_SET_ERP_USE_PROTECTION(1); |
| } |
| if (!pMgmt->sNodeDBTable[ii].bShortSlotTime) |
| uNonShortSlotSTACnt++; |
| } |
| } |
| |
| /* check if any STA in PS mode */ |
| if (pMgmt->sNodeDBTable[ii].bPSEnable) |
| uSleepySTACnt++; |
| |
| } |
| |
| /* Rate fallback check */ |
| if (!pDevice->bFixRate) { |
| if (ii > 0) { |
| /* ii = 0 for multicast node (AP & Adhoc) */ |
| RATEvTxRateFallBack((void *) pDevice, |
| &(pMgmt->sNodeDBTable[ii])); |
| } else if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) { |
| /* ii = 0 reserved for unicast AP node (Infra STA) */ |
| RATEvTxRateFallBack((void *) pDevice, |
| &(pMgmt->sNodeDBTable[ii])); |
| } |
| |
| } |
| |
| /* check if pending PS queue */ |
| if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Index= %d, Queue = %d pending\n", |
| ii, |
| pMgmt->sNodeDBTable[ii].wEnQueueCnt); |
| if (ii > 0 && |
| pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15) { |
| BSSvRemoveOneNode(pDevice, ii); |
| DBG_PRT(MSG_LEVEL_NOTICE, |
| KERN_INFO "Pending many queues PS STA Index = %d remove\n", |
| ii); |
| continue; |
| } |
| } |
| } |
| |
| } |
| |
| if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP && |
| pDevice->byBBType == BB_TYPE_11G) { |
| |
| /* on/off protect mode */ |
| if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) { |
| if (!pDevice->bProtectMode) { |
| MACvEnableProtectMD(pDevice); |
| pDevice->bProtectMode = true; |
| } |
| } else if (pDevice->bProtectMode) { |
| MACvDisableProtectMD(pDevice); |
| pDevice->bProtectMode = false; |
| } |
| /* on/off short slot time */ |
| |
| if (uNonShortSlotSTACnt > 0) { |
| if (pDevice->bShortSlotTime) { |
| pDevice->bShortSlotTime = false; |
| BBvSetShortSlotTime(pDevice); |
| vUpdateIFS((void *) pDevice); |
| } |
| } else if (!pDevice->bShortSlotTime) { |
| pDevice->bShortSlotTime = true; |
| BBvSetShortSlotTime(pDevice); |
| vUpdateIFS((void *) pDevice); |
| } |
| |
| /* on/off barker long preamble mode */ |
| |
| if (uLongPreambleSTACnt > 0) { |
| if (!pDevice->bBarkerPreambleMd) { |
| MACvEnableBarkerPreambleMd(pDevice); |
| pDevice->bBarkerPreambleMd = true; |
| } |
| } else if (pDevice->bBarkerPreambleMd) { |
| MACvDisableBarkerPreambleMd(pDevice); |
| pDevice->bBarkerPreambleMd = false; |
| } |
| |
| } |
| |
| /* Check if any STA in PS mode, enable DTIM multicast deliver */ |
| if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) { |
| if (uSleepySTACnt > 0) |
| pMgmt->sNodeDBTable[0].bPSEnable = true; |
| else |
| pMgmt->sNodeDBTable[0].bPSEnable = false; |
| } |
| |
| pItemSSID = (PWLAN_IE_SSID) pMgmt->abyDesireSSID; |
| pCurrSSID = (PWLAN_IE_SSID) pMgmt->abyCurrSSID; |
| |
| if (pMgmt->eCurrMode == WMAC_MODE_STANDBY || |
| pMgmt->eCurrMode == WMAC_MODE_ESS_STA) { |
| |
| if (pMgmt->sNodeDBTable[0].bActive) { /* Assoc with BSS */ |
| |
| s_vCheckSensitivity(pDevice); |
| s_vCheckPreEDThreshold(pDevice); |
| |
| if (pMgmt->sNodeDBTable[0].uInActiveCount >= |
| (LOST_BEACON_COUNT/2) && |
| pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) { |
| pDevice->byBBVGANew = pDevice->abyBBVGA[0]; |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_CHANGE_BBSENSITIVITY, |
| NULL); |
| } |
| |
| if (pMgmt->sNodeDBTable[0].uInActiveCount >= |
| LOST_BEACON_COUNT) { |
| pMgmt->sNodeDBTable[0].bActive = false; |
| pMgmt->eCurrMode = WMAC_MODE_STANDBY; |
| pMgmt->eCurrState = WMAC_STATE_IDLE; |
| netif_stop_queue(pDevice->dev); |
| pDevice->bLinkPass = false; |
| |
| vnt_mac_set_led(pDevice, LEDSTS_STS, |
| LEDSTS_SLOW); |
| |
| pDevice->bRoaming = true; |
| pDevice->bIsRoaming = false; |
| |
| DBG_PRT(MSG_LEVEL_NOTICE, |
| KERN_INFO "Lost AP beacon [%d] sec, disconnected !\n", |
| pMgmt->sNodeDBTable[0].uInActiveCount); |
| /* let wpa supplicant know AP may disconnect */ |
| { |
| 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 if (pItemSSID->len != 0) { |
| /* Davidwang */ |
| if ((pDevice->bEnableRoaming == true) && |
| (!(pMgmt->Cisco_cckm))) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "bRoaming %d, !\n", |
| pDevice->bRoaming); |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "bIsRoaming %d, !\n", |
| pDevice->bIsRoaming); |
| if ((pDevice->bRoaming == true) && |
| (pDevice->bIsRoaming == true)) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Fast Roaming ...\n"); |
| BSSvClearBSSList((void *) pDevice, |
| pDevice->bLinkPass); |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_BSSID_SCAN, |
| pMgmt->abyDesireSSID); |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_SSID, |
| pMgmt->abyDesireSSID); |
| pDevice->uAutoReConnectTime = 0; |
| pDevice->uIsroamingTime = 0; |
| pDevice->bRoaming = false; |
| } else if (pDevice->bRoaming == false && |
| pDevice->bIsRoaming == true) { |
| pDevice->uIsroamingTime++; |
| if (pDevice->uIsroamingTime >= 20) |
| pDevice->bIsRoaming = false; |
| } |
| } else if (pDevice->uAutoReConnectTime < 10) { |
| pDevice->uAutoReConnectTime++; |
| /* network manager support need not do Roaming scan??? */ |
| if (pDevice->bWPASuppWextEnabled == true) |
| pDevice->uAutoReConnectTime = 0; |
| } else { |
| /* mike use old encryption status for wpa reauthen */ |
| if (pDevice->bWPADEVUp) |
| pDevice->eEncryptionStatus = |
| pDevice->eOldEncryptionStatus; |
| |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "Roaming ...\n"); |
| BSSvClearBSSList((void *) pDevice, |
| pDevice->bLinkPass); |
| pMgmt->eScanType = WMAC_SCAN_ACTIVE; |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_BSSID_SCAN, |
| pMgmt->abyDesireSSID); |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_SSID, |
| pMgmt->abyDesireSSID); |
| pDevice->uAutoReConnectTime = 0; |
| } |
| } |
| } |
| |
| if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) { |
| /* if adhoc started which essid is NULL string, rescanning. */ |
| if (pMgmt->eCurrState == WMAC_STATE_STARTED && |
| pCurrSSID->len == 0) { |
| if (pDevice->uAutoReConnectTime < 10) { |
| pDevice->uAutoReConnectTime++; |
| } else { |
| DBG_PRT(MSG_LEVEL_NOTICE, |
| KERN_INFO "Adhoc re-scanning ...\n"); |
| pMgmt->eScanType = WMAC_SCAN_ACTIVE; |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_BSSID_SCAN, NULL); |
| bScheduleCommand((void *) pDevice, |
| WLAN_CMD_SSID, NULL); |
| pDevice->uAutoReConnectTime = 0; |
| } |
| } |
| if (pMgmt->eCurrState == WMAC_STATE_JOINTED) { |
| |
| s_vCheckSensitivity(pDevice); |
| s_vCheckPreEDThreshold(pDevice); |
| |
| if (pMgmt->sNodeDBTable[0].uInActiveCount >= |
| ADHOC_LOST_BEACON_COUNT) { |
| DBG_PRT(MSG_LEVEL_NOTICE, |
| KERN_INFO "Lost other STA beacon [%d] sec, started !\n", |
| pMgmt->sNodeDBTable[0].uInActiveCount); |
| pMgmt->sNodeDBTable[0].uInActiveCount = 0; |
| pMgmt->eCurrState = WMAC_STATE_STARTED; |
| netif_stop_queue(pDevice->dev); |
| pDevice->bLinkPass = false; |
| vnt_mac_set_led(pDevice, LEDSTS_STS, |
| LEDSTS_SLOW); |
| } |
| } |
| } |
| |
| if (pDevice->bLinkPass == true) { |
| if ((pMgmt->eAuthenMode < WMAC_AUTH_WPA || |
| pDevice->fWPA_Authened == true) && |
| (++pDevice->tx_data_time_out > 40)) { |
| pDevice->tx_trigger = true; |
| |
| PSbSendNullPacket(pDevice); |
| |
| pDevice->tx_trigger = false; |
| pDevice->tx_data_time_out = 0; |
| } |
| |
| if (netif_queue_stopped(pDevice->dev)) |
| netif_wake_queue(pDevice->dev); |
| } |
| |
| schedule_delayed_work(&pDevice->second_callback_work, HZ); |
| } |
| |
| /* |
| * Routine Description: |
| * |
| * |
| * Update Tx attemps, Tx failure counter in Node DB |
| * |
| * |
| * Return Value: |
| * none. |
| */ |
| void BSSvUpdateNodeTxCounter(struct vnt_private *pDevice, u8 byTSR, u8 byPktNO) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info; |
| u32 uNodeIndex = 0; |
| u8 byTxRetry; |
| u16 wRate; |
| u16 wFallBackRate = RATE_1M; |
| u8 byFallBack; |
| int ii; |
| u8 *pbyDestAddr; |
| u8 byPktNum; |
| u16 wFIFOCtl; |
| |
| byPktNum = (byPktNO & 0x0F) >> 4; |
| byTxRetry = (byTSR & 0xF0) >> 4; |
| wRate = (u16) (byPktNO & 0xF0) >> 4; |
| wFIFOCtl = pkt_info[byPktNum].fifo_ctl; |
| pbyDestAddr = pkt_info[byPktNum].dest_addr; |
| |
| if (wFIFOCtl & FIFOCTL_AUTO_FB_0) |
| byFallBack = AUTO_FB_0; |
| else if (wFIFOCtl & FIFOCTL_AUTO_FB_1) |
| byFallBack = AUTO_FB_1; |
| else |
| byFallBack = AUTO_FB_NONE; |
| |
| /* Only Unicast using support rates */ |
| if (wFIFOCtl & FIFOCTL_NEEDACK) { |
| if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) { |
| pMgmt->sNodeDBTable[0].uTxAttempts += 1; |
| if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) { |
| /* transmit success, TxAttempts at least plus one */ |
| pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++; |
| if ((byFallBack == AUTO_FB_NONE) || |
| (wRate < RATE_18M)) { |
| wFallBackRate = wRate; |
| } else if (byFallBack == AUTO_FB_0) { |
| if (byTxRetry < 5) |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][byTxRetry]; |
| else |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][4]; |
| } else if (byFallBack == AUTO_FB_1) { |
| if (byTxRetry < 5) |
| wFallBackRate = |
| awHWRetry1[wRate-RATE_18M][byTxRetry]; |
| else |
| wFallBackRate = awHWRetry1[wRate-RATE_18M][4]; |
| } |
| pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++; |
| } else { |
| pMgmt->sNodeDBTable[0].uTxFailures++; |
| } |
| pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry; |
| if (byTxRetry != 0) { |
| pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE] += byTxRetry; |
| if (byFallBack == AUTO_FB_NONE || |
| wRate < RATE_18M) { |
| pMgmt->sNodeDBTable[0].uTxFail[wRate] += byTxRetry; |
| } else if (byFallBack == AUTO_FB_0) { |
| for (ii = 0; ii < byTxRetry; ii++) { |
| if (ii < 5) |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][ii]; |
| else |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][4]; |
| pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++; |
| } |
| } else if (byFallBack == AUTO_FB_1) { |
| for (ii = 0; ii < byTxRetry; ii++) { |
| if (ii < 5) |
| wFallBackRate = |
| awHWRetry1[wRate-RATE_18M][ii]; |
| else |
| wFallBackRate = |
| awHWRetry1[wRate-RATE_18M][4]; |
| pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++; |
| } |
| } |
| } |
| } |
| |
| if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA || |
| pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && |
| BSSbIsSTAInNodeDB((void *) pDevice, |
| pbyDestAddr, |
| &uNodeIndex)) { |
| pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1; |
| if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) { |
| /* transmit success, TxAttempts at least plus one */ |
| pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++; |
| if ((byFallBack == AUTO_FB_NONE) || |
| (wRate < RATE_18M)) { |
| wFallBackRate = wRate; |
| } else if (byFallBack == AUTO_FB_0) { |
| if (byTxRetry < 5) |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][byTxRetry]; |
| else |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][4]; |
| } else if (byFallBack == AUTO_FB_1) { |
| if (byTxRetry < 5) |
| wFallBackRate = |
| awHWRetry1[wRate-RATE_18M][byTxRetry]; |
| else |
| wFallBackRate = |
| awHWRetry1[wRate-RATE_18M][4]; |
| } |
| pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++; |
| } else { |
| pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++; |
| } |
| pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry; |
| if (byTxRetry != 0) { |
| pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE] += byTxRetry; |
| if ((byFallBack == AUTO_FB_NONE) || |
| (wRate < RATE_18M)) { |
| pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate] += byTxRetry; |
| } else if (byFallBack == AUTO_FB_0) { |
| for (ii = 0; ii < byTxRetry; ii++) { |
| if (ii < 5) |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][ii]; |
| else |
| wFallBackRate = |
| awHWRetry0[wRate-RATE_18M][4]; |
| pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++; |
| } |
| } else if (byFallBack == AUTO_FB_1) { |
| for (ii = 0; ii < byTxRetry; ii++) { |
| if (ii < 5) |
| wFallBackRate = awHWRetry1[wRate-RATE_18M][ii]; |
| else |
| wFallBackRate = awHWRetry1[wRate-RATE_18M][4]; |
| pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /* |
| * Routine Description: |
| * Clear Nodes & skb in DB Table |
| * |
| * |
| * Parameters: |
| * In: |
| * hDeviceContext - The adapter context. |
| * uStartIndex - starting index |
| * Out: |
| * none |
| * |
| * Return Value: |
| * None. |
| */ |
| void BSSvClearNodeDBTable(struct vnt_private *pDevice, u32 uStartIndex) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| struct sk_buff *skb; |
| int ii; |
| |
| for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) { |
| if (pMgmt->sNodeDBTable[ii].bActive) { |
| /* check if sTxPSQueue has been initial */ |
| if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next) { |
| while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue))) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO "PS skb != NULL %d\n", |
| ii); |
| dev_kfree_skb(skb); |
| } |
| } |
| memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB)); |
| } |
| } |
| } |
| |
| static void s_vCheckSensitivity(struct vnt_private *pDevice) |
| { |
| PKnownBSS pBSSList = NULL; |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| int ii; |
| |
| if (pMgmt->eCurrState == WMAC_STATE_ASSOC || |
| (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA && |
| pMgmt->eCurrState == WMAC_STATE_JOINTED)) { |
| pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, |
| (PWLAN_IE_SSID) pMgmt->abyCurrSSID); |
| if (pBSSList) { |
| /* Update BB register if RSSI is too strong */ |
| signed long LocalldBmAverage = 0; |
| signed long uNumofdBm = 0; |
| for (ii = 0; ii < RSSI_STAT_COUNT; ii++) { |
| if (pBSSList->ldBmAverage[ii] != 0) { |
| uNumofdBm++; |
| LocalldBmAverage += pBSSList->ldBmAverage[ii]; |
| } |
| } |
| if (uNumofdBm > 0) { |
| LocalldBmAverage = LocalldBmAverage/uNumofdBm; |
| for (ii = 0; ii < BB_VGA_LEVEL; ii++) { |
| DBG_PRT(MSG_LEVEL_DEBUG, |
| KERN_INFO"LocalldBmAverage:%ld, %ld %02x\n", |
| LocalldBmAverage, |
| pDevice->ldBmThreshold[ii], |
| pDevice->abyBBVGA[ii]); |
| if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) { |
| pDevice->byBBVGANew = |
| pDevice->abyBBVGA[ii]; |
| break; |
| } |
| } |
| if (pDevice->byBBVGANew != |
| pDevice->byBBVGACurrent) { |
| pDevice->uBBVGADiffCount++; |
| if (pDevice->uBBVGADiffCount >= |
| BB_VGA_CHANGE_THRESHOLD) |
| bScheduleCommand(pDevice, |
| WLAN_CMD_CHANGE_BBSENSITIVITY, |
| NULL); |
| } else { |
| pDevice->uBBVGADiffCount = 0; |
| } |
| } |
| } |
| } |
| } |
| |
| static void s_uCalculateLinkQual(struct vnt_private *pDevice) |
| { |
| struct net_device_stats *stats = &pDevice->stats; |
| unsigned long TxOkRatio, TxCnt; |
| unsigned long RxOkRatio, RxCnt; |
| unsigned long RssiRatio; |
| unsigned long qual; |
| long ldBm; |
| |
| TxCnt = stats->tx_packets + pDevice->wstats.discard.retries; |
| |
| RxCnt = stats->rx_packets + stats->rx_frame_errors; |
| |
| TxOkRatio = (TxCnt < 6) ? 4000:((stats->tx_packets * 4000) / TxCnt); |
| |
| RxOkRatio = (RxCnt < 6) ? 2000 : |
| ((stats->rx_packets * 2000) / RxCnt); |
| |
| /* decide link quality */ |
| if (pDevice->bLinkPass != true) { |
| pDevice->wstats.qual.qual = 0; |
| } else { |
| vnt_rf_rssi_to_dbm(pDevice, (u8) (pDevice->uCurrRSSI), &ldBm); |
| if (-ldBm < 50) |
| RssiRatio = 4000; |
| else if (-ldBm > 90) |
| RssiRatio = 0; |
| else |
| RssiRatio = (40-(-ldBm-50)) * 4000 / 40; |
| |
| qual = (RssiRatio + TxOkRatio + RxOkRatio) / 100; |
| if (qual < 100) |
| pDevice->wstats.qual.qual = (u8) qual; |
| else |
| pDevice->wstats.qual.qual = 100; |
| } |
| } |
| |
| void BSSvClearAnyBSSJoinRecord(struct vnt_private *pDevice) |
| { |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| int ii; |
| |
| for (ii = 0; ii < MAX_BSS_NUM; ii++) |
| pMgmt->sBSSList[ii].bSelected = false; |
| |
| return; |
| } |
| |
| static void s_vCheckPreEDThreshold(struct vnt_private *pDevice) |
| { |
| PKnownBSS pBSSList = NULL; |
| struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; |
| |
| if (pMgmt->eCurrState == WMAC_STATE_ASSOC || |
| (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA && |
| pMgmt->eCurrState == WMAC_STATE_JOINTED)) { |
| pBSSList = BSSpAddrIsInBSSList(pDevice, |
| pMgmt->abyCurrBSSID, |
| (PWLAN_IE_SSID) pMgmt->abyCurrSSID); |
| if (pBSSList) { |
| pDevice->byBBPreEDRSSI = |
| (u8) (~(pBSSList->ldBmAverRange) + 1); |
| BBvUpdatePreEDThreshold(pDevice, false); |
| } |
| } |
| } |
| |
