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