drivers/staging/vt6656/bssdb.h

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: bssdb.h
  21  *
  22  * Purpose: Handles the Basic Service Set & Node Database functions
  23  *
  24  * Author: Lyndon Chen
  25  *
  26  * Date: July 16, 2002
  27  *
  28  */
  29
  30 #ifndef __BSSDB_H__
  31 #define __BSSDB_H__
  32
  33 #include <linux/skbuff.h>
  34 #include "80211hdr.h"
  35 #include "80211mgr.h"
  36 #include "card.h"
  37 #include "mib.h"
  38
  39 #define MAX_NODE_NUM             64
  40 #define MAX_BSS_NUM              42
  41 #define LOST_BEACON_COUNT        10   /* 10 sec, XP defined */
  42 #define MAX_PS_TX_BUF            32   // sta max power saving tx buf
  43 #define ADHOC_LOST_BEACON_COUNT  30   // 30 sec, beacon lost for adhoc only
  44 #define MAX_INACTIVE_COUNT       300  // 300 sec, inactive STA node refresh
  45
  46 #define USE_PROTECT_PERIOD       10   // 10 sec, Use protect mode check period
  47 #define ERP_RECOVER_COUNT        30   // 30 sec, ERP support callback check
  48 #define BSS_CLEAR_COUNT           1
  49
  50 #define RSSI_STAT_COUNT          10
  51 #define MAX_CHECK_RSSI_COUNT     8
  52
  53 // STA dwflags
  54 #define WLAN_STA_AUTH            BIT0
  55 #define WLAN_STA_ASSOC           BIT1
  56 #define WLAN_STA_PS              BIT2
  57 #define WLAN_STA_TIM             BIT3
  58 // permanent; do not remove entry on expiration
  59 #define WLAN_STA_PERM            BIT4
  60 // If 802.1X is used, this flag is
  61 // controlling whether STA is authorized to
  62 // send and receive non-IEEE 802.1X frames
  63 #define WLAN_STA_AUTHORIZED      BIT5
  64
  65 #define MAX_WPA_IE_LEN      64
  66
  67 //
  68 // IEEE 802.11 Structures and definitions
  69 //
  70
  71 typedef struct tagSERPObject {
  72     bool    bERPExist;
  73     u8    byERP;
  74 } ERPObject, *PERPObject;
  75
  76 typedef struct tagSRSNCapObject {
  77     bool    bRSNCapExist;
  78     u16    wRSNCap;
  79 } SRSNCapObject, *PSRSNCapObject;
  80
  81 // BSS info(AP)
  82 typedef struct tagKnownBSS {
  83     // BSS info
  84     bool            bActive;
  85     u8            abyBSSID[WLAN_BSSID_LEN];
  86     unsigned int            uChannel;
  87     u8            abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
  88     u8            abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
  89     unsigned int            uRSSI;
  90     u8            bySQ;
  91     u16            wBeaconInterval;
  92     u16            wCapInfo;
  93     u8            abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
  94     u8            byRxRate;
  95
  96 //    u16            wATIMWindow;
  97     u8            byRSSIStatCnt;
  98     signed long            ldBmMAX;
  99     signed long            ldBmAverage[RSSI_STAT_COUNT];
 100     signed long            ldBmAverRange;
 101     //For any BSSID selection improvment
 102     bool            bSelected;
 103
 104     //++ WPA informations
 105     bool            bWPAValid;
 106     u8            byGKType;
 107     u8            abyPKType[4];
 108     u16            wPKCount;
 109     u8            abyAuthType[4];
 110     u16            wAuthCount;
 111     u8            byDefaultK_as_PK;
 112     u8            byReplayIdx;
 113     //--
 114
 115     //++ WPA2 informations
 116     bool            bWPA2Valid;
 117     u8            byCSSGK;
 118     u16            wCSSPKCount;
 119     u8            abyCSSPK[4];
 120     u16            wAKMSSAuthCount;
 121     u8            abyAKMSSAuthType[4];
 122
 123     //++  wpactl
 124     u8            byWPAIE[MAX_WPA_IE_LEN];
 125     u8            byRSNIE[MAX_WPA_IE_LEN];
 126     u16            wWPALen;
 127     u16            wRSNLen;
 128
 129     // Clear count
 130     unsigned int            uClearCount;
 131 //    u8            abyIEs[WLAN_BEACON_FR_MAXLEN];
 132     unsigned int            uIELength;
 133         u64 qwBSSTimestamp;
 134         u64 qwLocalTSF;/* local TSF timer */
 135
 136     CARD_PHY_TYPE   eNetworkTypeInUse;
 137
 138     ERPObject       sERP;
 139     SRSNCapObject   sRSNCapObj;
 140     u8            abyIEs[1024];   // don't move this field !!
 141
 142 } __attribute__ ((__packed__))
 143 KnownBSS , *PKnownBSS;
 144
 145 typedef enum tagNODE_STATE {
 146     NODE_FREE,
 147     NODE_AGED,
 148     NODE_KNOWN,
 149     NODE_AUTH,
 150     NODE_ASSOC
 151 } NODE_STATE, *PNODE_STATE;
 152
 153 // STA node info
 154 typedef struct tagKnownNodeDB {
 155     // STA info
 156     bool            bActive;
 157     u8            abyMACAddr[WLAN_ADDR_LEN];
 158     u8            abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 159     u8            abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 160     u16            wTxDataRate;
 161     bool            bShortPreamble;
 162     bool            bERPExist;
 163     bool            bShortSlotTime;
 164     unsigned int            uInActiveCount;
 165     u16            wMaxBasicRate;     //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
 166     u16            wMaxSuppRate;      //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
 167     u16            wSuppRate;
 168     u8            byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
 169     u8            byTopCCKBasicRate; //Records the highest basic rate in CCK mode
 170
 171     // For AP mode
 172     struct sk_buff_head sTxPSQueue;
 173     u16            wCapInfo;
 174     u16            wListenInterval;
 175     u16            wAID;
 176     NODE_STATE      eNodeState;
 177     bool            bPSEnable;
 178     bool            bRxPSPoll;
 179     u8            byAuthSequence;
 180     unsigned long           ulLastRxJiffer;
 181     u8            bySuppRate;
 182     u32           dwFlags;
 183     u16            wEnQueueCnt;
 184
 185     bool            bOnFly;
 186     unsigned long long       KeyRSC;
 187     u8            byKeyIndex;
 188     u32           dwKeyIndex;
 189     u8            byCipherSuite;
 190     u32           dwTSC47_16;
 191     u16            wTSC15_0;
 192     unsigned int            uWepKeyLength;
 193     u8            abyWepKey[WLAN_WEPMAX_KEYLEN];
 194     //
 195     // Auto rate fallback vars
 196     bool            bIsInFallback;
 197     unsigned int            uAverageRSSI;
 198     unsigned int            uRateRecoveryTimeout;
 199     unsigned int            uRatePollTimeout;
 200     unsigned int            uTxFailures;
 201     unsigned int            uTxAttempts;
 202
 203     unsigned int            uTxRetry;
 204     unsigned int            uFailureRatio;
 205     unsigned int            uRetryRatio;
 206     unsigned int            uTxOk[MAX_RATE+1];
 207     unsigned int            uTxFail[MAX_RATE+1];
 208     unsigned int            uTimeCount;
 209
 210 } KnownNodeDB, *PKnownNodeDB;
 211
 212 PKnownBSS BSSpSearchBSSList(struct vnt_private *, u8 *pbyDesireBSSID,
 213         u8 *pbyDesireSSID, CARD_PHY_TYPE ePhyType);
 214
 215 PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *, u8 *abyBSSID,
 216         PWLAN_IE_SSID pSSID);
 217
 218 void BSSvClearBSSList(struct vnt_private *, int bKeepCurrBSSID);
 219
 220 int BSSbInsertToBSSList(struct vnt_private *,
 221                         u8 *abyBSSIDAddr,
 222                         u64 qwTimestamp,
 223                         u16 wBeaconInterval,
 224                         u16 wCapInfo,
 225                         u8 byCurrChannel,
 226                         PWLAN_IE_SSID pSSID,
 227                         PWLAN_IE_SUPP_RATES pSuppRates,
 228                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 229                         PERPObject psERP,
 230                         PWLAN_IE_RSN pRSN,
 231                         PWLAN_IE_RSN_EXT pRSNWPA,
 232                         PWLAN_IE_COUNTRY pIE_Country,
 233                         PWLAN_IE_QUIET pIE_Quiet,
 234                         u32 uIELength,
 235                         u8 *pbyIEs,
 236                         void *pRxPacketContext);
 237
 238 int BSSbUpdateToBSSList(struct vnt_private *,
 239                         u64 qwTimestamp,
 240                         u16 wBeaconInterval,
 241                         u16 wCapInfo,
 242                         u8 byCurrChannel,
 243                         int bChannelHit,
 244                         PWLAN_IE_SSID pSSID,
 245                         PWLAN_IE_SUPP_RATES pSuppRates,
 246                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 247                         PERPObject psERP,
 248                         PWLAN_IE_RSN pRSN,
 249                         PWLAN_IE_RSN_EXT pRSNWPA,
 250                         PWLAN_IE_COUNTRY pIE_Country,
 251                         PWLAN_IE_QUIET pIE_Quiet,
 252                         PKnownBSS pBSSList,
 253                         u32 uIELength,
 254                         u8 *pbyIEs,
 255                         void *pRxPacketContext);
 256
 257 int BSSbIsSTAInNodeDB(struct vnt_private *, u8 * abyDstAddr,
 258         u32 *puNodeIndex);
 259
 260 void BSSvCreateOneNode(struct vnt_private *, u32 *puNodeIndex);
 261
 262 void BSSvUpdateAPNode(struct vnt_private *, u16 *pwCapInfo,
 263         PWLAN_IE_SUPP_RATES pItemRates, PWLAN_IE_SUPP_RATES pExtSuppRates);
 264
 265 void BSSvSecondCallBack(struct work_struct *work);
 266
 267 void BSSvUpdateNodeTxCounter(struct vnt_private *, PSStatCounter pStatistic,
 268         u8 byTSR, u8 byPktNO);
 269
 270 void BSSvRemoveOneNode(struct vnt_private *, u32 uNodeIndex);
 271
 272 void BSSvAddMulticastNode(struct vnt_private *);
 273
 274 void BSSvClearNodeDBTable(struct vnt_private *, u32 uStartIndex);
 275
 276 void BSSvClearAnyBSSJoinRecord(struct vnt_private *);
 277
 278 #endif /* __BSSDB_H__ */