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
  40 #define MAX_NODE_NUM             64
  41 #define MAX_BSS_NUM              42
  42 #define LOST_BEACON_COUNT        10   /* 10 sec, XP defined */
  43 #define MAX_PS_TX_BUF            32   // sta max power saving tx buf
  44 #define ADHOC_LOST_BEACON_COUNT  30   // 30 sec, beacon lost for adhoc only
  45 #define MAX_INACTIVE_COUNT       300  // 300 sec, inactive STA node refresh
  46
  47 #define USE_PROTECT_PERIOD       10   // 10 sec, Use protect mode check period
  48 #define ERP_RECOVER_COUNT        30   // 30 sec, ERP support callback check
  49 #define BSS_CLEAR_COUNT           1
  50
  51 #define RSSI_STAT_COUNT          10
  52 #define MAX_CHECK_RSSI_COUNT     8
  53
  54 // STA dwflags
  55 #define WLAN_STA_AUTH            BIT0
  56 #define WLAN_STA_ASSOC           BIT1
  57 #define WLAN_STA_PS              BIT2
  58 #define WLAN_STA_TIM             BIT3
  59 // permanent; do not remove entry on expiration
  60 #define WLAN_STA_PERM            BIT4
  61 // If 802.1X is used, this flag is
  62 // controlling whether STA is authorized to
  63 // send and receive non-IEEE 802.1X frames
  64 #define WLAN_STA_AUTHORIZED      BIT5
  65
  66 #define MAX_WPA_IE_LEN      64
  67
  68
  69
  70
  71
  72
  73 //
  74 // IEEE 802.11 Structures and definitions
  75 //
  76
  77 typedef struct tagSERPObject {
  78     bool    bERPExist;
  79     u8    byERP;
  80 } ERPObject, *PERPObject;
  81
  82
  83 typedef struct tagSRSNCapObject {
  84     bool    bRSNCapExist;
  85     u16    wRSNCap;
  86 } SRSNCapObject, *PSRSNCapObject;
  87
  88 // BSS info(AP)
  89 typedef struct tagKnownBSS {
  90     // BSS info
  91     bool            bActive;
  92     u8            abyBSSID[WLAN_BSSID_LEN];
  93     unsigned int            uChannel;
  94     u8            abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
  95     u8            abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
  96     unsigned int            uRSSI;
  97     u8            bySQ;
  98     u16            wBeaconInterval;
  99     u16            wCapInfo;
 100     u8            abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
 101     u8            byRxRate;
 102
 103 //    u16            wATIMWindow;
 104     u8            byRSSIStatCnt;
 105     signed long            ldBmMAX;
 106     signed long            ldBmAverage[RSSI_STAT_COUNT];
 107     signed long            ldBmAverRange;
 108     //For any BSSID selection improvment
 109     bool            bSelected;
 110
 111     //++ WPA informations
 112     bool            bWPAValid;
 113     u8            byGKType;
 114     u8            abyPKType[4];
 115     u16            wPKCount;
 116     u8            abyAuthType[4];
 117     u16            wAuthCount;
 118     u8            byDefaultK_as_PK;
 119     u8            byReplayIdx;
 120     //--
 121
 122     //++ WPA2 informations
 123     bool            bWPA2Valid;
 124     u8            byCSSGK;
 125     u16            wCSSPKCount;
 126     u8            abyCSSPK[4];
 127     u16            wAKMSSAuthCount;
 128     u8            abyAKMSSAuthType[4];
 129
 130     //++  wpactl
 131     u8            byWPAIE[MAX_WPA_IE_LEN];
 132     u8            byRSNIE[MAX_WPA_IE_LEN];
 133     u16            wWPALen;
 134     u16            wRSNLen;
 135
 136     // Clear count
 137     unsigned int            uClearCount;
 138 //    u8            abyIEs[WLAN_BEACON_FR_MAXLEN];
 139     unsigned int            uIELength;
 140         u64 qwBSSTimestamp;
 141         u64 qwLocalTSF;/* local TSF timer */
 142
 143     CARD_PHY_TYPE   eNetworkTypeInUse;
 144
 145     ERPObject       sERP;
 146     SRSNCapObject   sRSNCapObj;
 147     u8            abyIEs[1024];   // don't move this field !!
 148
 149 } __attribute__ ((__packed__))
 150 KnownBSS , *PKnownBSS;
 151
 152
 153
 154 typedef enum tagNODE_STATE {
 155     NODE_FREE,
 156     NODE_AGED,
 157     NODE_KNOWN,
 158     NODE_AUTH,
 159     NODE_ASSOC
 160 } NODE_STATE, *PNODE_STATE;
 161
 162
 163 // STA node info
 164 typedef struct tagKnownNodeDB {
 165     // STA info
 166     bool            bActive;
 167     u8            abyMACAddr[WLAN_ADDR_LEN];
 168     u8            abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 169     u8            abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 170     u16            wTxDataRate;
 171     bool            bShortPreamble;
 172     bool            bERPExist;
 173     bool            bShortSlotTime;
 174     unsigned int            uInActiveCount;
 175     u16            wMaxBasicRate;     //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
 176     u16            wMaxSuppRate;      //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
 177     u16            wSuppRate;
 178     u8            byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
 179     u8            byTopCCKBasicRate; //Records the highest basic rate in CCK mode
 180
 181     // For AP mode
 182     struct sk_buff_head sTxPSQueue;
 183     u16            wCapInfo;
 184     u16            wListenInterval;
 185     u16            wAID;
 186     NODE_STATE      eNodeState;
 187     bool            bPSEnable;
 188     bool            bRxPSPoll;
 189     u8            byAuthSequence;
 190     unsigned long           ulLastRxJiffer;
 191     u8            bySuppRate;
 192     u32           dwFlags;
 193     u16            wEnQueueCnt;
 194
 195     bool            bOnFly;
 196     unsigned long long       KeyRSC;
 197     u8            byKeyIndex;
 198     u32           dwKeyIndex;
 199     u8            byCipherSuite;
 200     u32           dwTSC47_16;
 201     u16            wTSC15_0;
 202     unsigned int            uWepKeyLength;
 203     u8            abyWepKey[WLAN_WEPMAX_KEYLEN];
 204     //
 205     // Auto rate fallback vars
 206     bool            bIsInFallback;
 207     unsigned int            uAverageRSSI;
 208     unsigned int            uRateRecoveryTimeout;
 209     unsigned int            uRatePollTimeout;
 210     unsigned int            uTxFailures;
 211     unsigned int            uTxAttempts;
 212
 213     unsigned int            uTxRetry;
 214     unsigned int            uFailureRatio;
 215     unsigned int            uRetryRatio;
 216     unsigned int            uTxOk[MAX_RATE+1];
 217     unsigned int            uTxFail[MAX_RATE+1];
 218     unsigned int            uTimeCount;
 219
 220 } KnownNodeDB, *PKnownNodeDB;
 221
 222
 223 PKnownBSS BSSpSearchBSSList(struct vnt_private *, u8 *pbyDesireBSSID,
 224         u8 *pbyDesireSSID, CARD_PHY_TYPE ePhyType);
 225
 226 PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *, u8 *abyBSSID,
 227         PWLAN_IE_SSID pSSID);
 228
 229 void BSSvClearBSSList(struct vnt_private *, int bKeepCurrBSSID);
 230
 231 int BSSbInsertToBSSList(struct vnt_private *,
 232                         u8 *abyBSSIDAddr,
 233                         u64 qwTimestamp,
 234                         u16 wBeaconInterval,
 235                         u16 wCapInfo,
 236                         u8 byCurrChannel,
 237                         PWLAN_IE_SSID pSSID,
 238                         PWLAN_IE_SUPP_RATES pSuppRates,
 239                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 240                         PERPObject psERP,
 241                         PWLAN_IE_RSN pRSN,
 242                         PWLAN_IE_RSN_EXT pRSNWPA,
 243                         PWLAN_IE_COUNTRY pIE_Country,
 244                         PWLAN_IE_QUIET pIE_Quiet,
 245                         u32 uIELength,
 246                         u8 *pbyIEs,
 247                         void *pRxPacketContext);
 248
 249 int BSSbUpdateToBSSList(struct vnt_private *,
 250                         u64 qwTimestamp,
 251                         u16 wBeaconInterval,
 252                         u16 wCapInfo,
 253                         u8 byCurrChannel,
 254                         int bChannelHit,
 255                         PWLAN_IE_SSID pSSID,
 256                         PWLAN_IE_SUPP_RATES pSuppRates,
 257                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 258                         PERPObject psERP,
 259                         PWLAN_IE_RSN pRSN,
 260                         PWLAN_IE_RSN_EXT pRSNWPA,
 261                         PWLAN_IE_COUNTRY pIE_Country,
 262                         PWLAN_IE_QUIET pIE_Quiet,
 263                         PKnownBSS pBSSList,
 264                         u32 uIELength,
 265                         u8 *pbyIEs,
 266                         void *pRxPacketContext);
 267
 268 int BSSbIsSTAInNodeDB(struct vnt_private *, u8 * abyDstAddr,
 269         u32 *puNodeIndex);
 270
 271 void BSSvCreateOneNode(struct vnt_private *, u32 *puNodeIndex);
 272
 273 void BSSvUpdateAPNode(struct vnt_private *, u16 *pwCapInfo,
 274         PWLAN_IE_SUPP_RATES pItemRates, PWLAN_IE_SUPP_RATES pExtSuppRates);
 275
 276 void BSSvSecondCallBack(struct vnt_private *);
 277
 278 void BSSvUpdateNodeTxCounter(struct vnt_private *, PSStatCounter pStatistic,
 279         u8 byTSR, u8 byPktNO);
 280
 281 void BSSvRemoveOneNode(struct vnt_private *, u32 uNodeIndex);
 282
 283 void BSSvAddMulticastNode(struct vnt_private *);
 284
 285 void BSSvClearNodeDBTable(struct vnt_private *, u32 uStartIndex);
 286
 287 void BSSvClearAnyBSSJoinRecord(struct vnt_private *);
 288
 289 #endif /* __BSSDB_H__ */