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 /*---------------------  Export Definitions -------------------------*/
  40
  41 #define MAX_NODE_NUM             64
  42 #define MAX_BSS_NUM              42
  43 #define LOST_BEACON_COUNT        10   /* 10 sec, XP defined */
  44 #define MAX_PS_TX_BUF            32   // sta max power saving tx buf
  45 #define ADHOC_LOST_BEACON_COUNT  30   // 30 sec, beacon lost for adhoc only
  46 #define MAX_INACTIVE_COUNT       300  // 300 sec, inactive STA node refresh
  47
  48 #define USE_PROTECT_PERIOD       10   // 10 sec, Use protect mode check period
  49 #define ERP_RECOVER_COUNT        30   // 30 sec, ERP support callback check
  50 #define BSS_CLEAR_COUNT           1
  51
  52 #define RSSI_STAT_COUNT          10
  53 #define MAX_CHECK_RSSI_COUNT     8
  54
  55 // STA dwflags
  56 #define WLAN_STA_AUTH            BIT0
  57 #define WLAN_STA_ASSOC           BIT1
  58 #define WLAN_STA_PS              BIT2
  59 #define WLAN_STA_TIM             BIT3
  60 // permanent; do not remove entry on expiration
  61 #define WLAN_STA_PERM            BIT4
  62 // If 802.1X is used, this flag is
  63 // controlling whether STA is authorized to
  64 // send and receive non-IEEE 802.1X frames
  65 #define WLAN_STA_AUTHORIZED      BIT5
  66
  67 #define MAX_WPA_IE_LEN      64
  68
  69
  70 /*---------------------  Export Classes  ----------------------------*/
  71
  72 /*---------------------  Export Variables  --------------------------*/
  73
  74
  75 /*---------------------  Export Types  ------------------------------*/
  76
  77 //
  78 // IEEE 802.11 Structures and definitions
  79 //
  80
  81 typedef struct tagSERPObject {
  82     bool    bERPExist;
  83     BYTE    byERP;
  84 } ERPObject, *PERPObject;
  85
  86
  87 typedef struct tagSRSNCapObject {
  88     bool    bRSNCapExist;
  89     WORD    wRSNCap;
  90 } SRSNCapObject, *PSRSNCapObject;
  91
  92 // BSS info(AP)
  93 typedef struct tagKnownBSS {
  94     // BSS info
  95     bool            bActive;
  96     BYTE            abyBSSID[WLAN_BSSID_LEN];
  97     unsigned int            uChannel;
  98     BYTE            abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
  99     BYTE            abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
 100     unsigned int            uRSSI;
 101     BYTE            bySQ;
 102     WORD            wBeaconInterval;
 103     WORD            wCapInfo;
 104     BYTE            abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
 105     BYTE            byRxRate;
 106
 107 //    WORD            wATIMWindow;
 108     BYTE            byRSSIStatCnt;
 109     signed long            ldBmMAX;
 110     signed long            ldBmAverage[RSSI_STAT_COUNT];
 111     signed long            ldBmAverRange;
 112     //For any BSSID selection improvment
 113     bool            bSelected;
 114
 115     //++ WPA informations
 116     bool            bWPAValid;
 117     BYTE            byGKType;
 118     BYTE            abyPKType[4];
 119     WORD            wPKCount;
 120     BYTE            abyAuthType[4];
 121     WORD            wAuthCount;
 122     BYTE            byDefaultK_as_PK;
 123     BYTE            byReplayIdx;
 124     //--
 125
 126     //++ WPA2 informations
 127     bool            bWPA2Valid;
 128     BYTE            byCSSGK;
 129     WORD            wCSSPKCount;
 130     BYTE            abyCSSPK[4];
 131     WORD            wAKMSSAuthCount;
 132     BYTE            abyAKMSSAuthType[4];
 133
 134     //++  wpactl
 135     BYTE            byWPAIE[MAX_WPA_IE_LEN];
 136     BYTE            byRSNIE[MAX_WPA_IE_LEN];
 137     WORD            wWPALen;
 138     WORD            wRSNLen;
 139
 140     // Clear count
 141     unsigned int            uClearCount;
 142 //    BYTE            abyIEs[WLAN_BEACON_FR_MAXLEN];
 143     unsigned int            uIELength;
 144         u64 qwBSSTimestamp;
 145         u64 qwLocalTSF;/* local TSF timer */
 146
 147     CARD_PHY_TYPE   eNetworkTypeInUse;
 148
 149     ERPObject       sERP;
 150     SRSNCapObject   sRSNCapObj;
 151     BYTE            abyIEs[1024];   // don't move this field !!
 152
 153 } __attribute__ ((__packed__))
 154 KnownBSS , *PKnownBSS;
 155
 156
 157
 158 typedef enum tagNODE_STATE {
 159     NODE_FREE,
 160     NODE_AGED,
 161     NODE_KNOWN,
 162     NODE_AUTH,
 163     NODE_ASSOC
 164 } NODE_STATE, *PNODE_STATE;
 165
 166
 167 // STA node info
 168 typedef struct tagKnownNodeDB {
 169     // STA info
 170     bool            bActive;
 171     BYTE            abyMACAddr[WLAN_ADDR_LEN];
 172     BYTE            abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 173     BYTE            abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 174     WORD            wTxDataRate;
 175     bool            bShortPreamble;
 176     bool            bERPExist;
 177     bool            bShortSlotTime;
 178     unsigned int            uInActiveCount;
 179     WORD            wMaxBasicRate;     //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
 180     WORD            wMaxSuppRate;      //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
 181     WORD            wSuppRate;
 182     BYTE            byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
 183     BYTE            byTopCCKBasicRate; //Records the highest basic rate in CCK mode
 184
 185     // For AP mode
 186     struct sk_buff_head sTxPSQueue;
 187     WORD            wCapInfo;
 188     WORD            wListenInterval;
 189     WORD            wAID;
 190     NODE_STATE      eNodeState;
 191     bool            bPSEnable;
 192     bool            bRxPSPoll;
 193     BYTE            byAuthSequence;
 194     unsigned long           ulLastRxJiffer;
 195     BYTE            bySuppRate;
 196     DWORD           dwFlags;
 197     WORD            wEnQueueCnt;
 198
 199     bool            bOnFly;
 200     unsigned long long       KeyRSC;
 201     BYTE            byKeyIndex;
 202     DWORD           dwKeyIndex;
 203     BYTE            byCipherSuite;
 204     DWORD           dwTSC47_16;
 205     WORD            wTSC15_0;
 206     unsigned int            uWepKeyLength;
 207     BYTE            abyWepKey[WLAN_WEPMAX_KEYLEN];
 208     //
 209     // Auto rate fallback vars
 210     bool            bIsInFallback;
 211     unsigned int            uAverageRSSI;
 212     unsigned int            uRateRecoveryTimeout;
 213     unsigned int            uRatePollTimeout;
 214     unsigned int            uTxFailures;
 215     unsigned int            uTxAttempts;
 216
 217     unsigned int            uTxRetry;
 218     unsigned int            uFailureRatio;
 219     unsigned int            uRetryRatio;
 220     unsigned int            uTxOk[MAX_RATE+1];
 221     unsigned int            uTxFail[MAX_RATE+1];
 222     unsigned int            uTimeCount;
 223
 224 } KnownNodeDB, *PKnownNodeDB;
 225
 226 /*---------------------  Export Functions  --------------------------*/
 227
 228 PKnownBSS BSSpSearchBSSList(struct vnt_private *, u8 *pbyDesireBSSID,
 229         u8 *pbyDesireSSID, CARD_PHY_TYPE ePhyType);
 230
 231 PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *, u8 *abyBSSID,
 232         PWLAN_IE_SSID pSSID);
 233
 234 void BSSvClearBSSList(struct vnt_private *, int bKeepCurrBSSID);
 235
 236 int BSSbInsertToBSSList(struct vnt_private *,
 237                         u8 *abyBSSIDAddr,
 238                         u64 qwTimestamp,
 239                         u16 wBeaconInterval,
 240                         u16 wCapInfo,
 241                         u8 byCurrChannel,
 242                         PWLAN_IE_SSID pSSID,
 243                         PWLAN_IE_SUPP_RATES pSuppRates,
 244                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 245                         PERPObject psERP,
 246                         PWLAN_IE_RSN pRSN,
 247                         PWLAN_IE_RSN_EXT pRSNWPA,
 248                         PWLAN_IE_COUNTRY pIE_Country,
 249                         PWLAN_IE_QUIET pIE_Quiet,
 250                         u32 uIELength,
 251                         u8 *pbyIEs,
 252                         void *pRxPacketContext);
 253
 254 int BSSbUpdateToBSSList(struct vnt_private *,
 255                         u64 qwTimestamp,
 256                         u16 wBeaconInterval,
 257                         u16 wCapInfo,
 258                         u8 byCurrChannel,
 259                         int bChannelHit,
 260                         PWLAN_IE_SSID pSSID,
 261                         PWLAN_IE_SUPP_RATES pSuppRates,
 262                         PWLAN_IE_SUPP_RATES pExtSuppRates,
 263                         PERPObject psERP,
 264                         PWLAN_IE_RSN pRSN,
 265                         PWLAN_IE_RSN_EXT pRSNWPA,
 266                         PWLAN_IE_COUNTRY pIE_Country,
 267                         PWLAN_IE_QUIET pIE_Quiet,
 268                         PKnownBSS pBSSList,
 269                         u32 uIELength,
 270                         u8 *pbyIEs,
 271                         void *pRxPacketContext);
 272
 273 int BSSbIsSTAInNodeDB(struct vnt_private *, PBYTE abyDstAddr,
 274         u32 *puNodeIndex);
 275
 276 void BSSvCreateOneNode(struct vnt_private *, u32 *puNodeIndex);
 277
 278 void BSSvUpdateAPNode(struct vnt_private *, u16 *pwCapInfo,
 279         PWLAN_IE_SUPP_RATES pItemRates, PWLAN_IE_SUPP_RATES pExtSuppRates);
 280
 281 void BSSvSecondCallBack(struct vnt_private *);
 282
 283 void BSSvUpdateNodeTxCounter(struct vnt_private *, PSStatCounter pStatistic,
 284         u8 byTSR, u8 byPktNO);
 285
 286 void BSSvRemoveOneNode(struct vnt_private *, u32 uNodeIndex);
 287
 288 void BSSvAddMulticastNode(struct vnt_private *);
 289
 290 void BSSvClearNodeDBTable(struct vnt_private *, u32 uStartIndex);
 291
 292 void BSSvClearAnyBSSJoinRecord(struct vnt_private *);
 293
 294 #endif /* __BSSDB_H__ */