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 #pragma pack(1)
  94 typedef struct tagKnownBSS {
  95     // BSS info
  96     BOOL            bActive;
  97     BYTE            abyBSSID[WLAN_BSSID_LEN];
  98     unsigned int            uChannel;
  99     BYTE            abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
 100     BYTE            abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
 101     unsigned int            uRSSI;
 102     BYTE            bySQ;
 103     WORD            wBeaconInterval;
 104     WORD            wCapInfo;
 105     BYTE            abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
 106     BYTE            byRxRate;
 107
 108 //    WORD            wATIMWindow;
 109     BYTE            byRSSIStatCnt;
 110     signed long            ldBmMAX;
 111     signed long            ldBmAverage[RSSI_STAT_COUNT];
 112     signed long            ldBmAverRange;
 113     //For any BSSID selection improvment
 114     BOOL            bSelected;
 115
 116     //++ WPA informations
 117     BOOL            bWPAValid;
 118     BYTE            byGKType;
 119     BYTE            abyPKType[4];
 120     WORD            wPKCount;
 121     BYTE            abyAuthType[4];
 122     WORD            wAuthCount;
 123     BYTE            byDefaultK_as_PK;
 124     BYTE            byReplayIdx;
 125     //--
 126
 127     //++ WPA2 informations
 128     BOOL            bWPA2Valid;
 129     BYTE            byCSSGK;
 130     WORD            wCSSPKCount;
 131     BYTE            abyCSSPK[4];
 132     WORD            wAKMSSAuthCount;
 133     BYTE            abyAKMSSAuthType[4];
 134
 135     //++  wpactl
 136     BYTE            byWPAIE[MAX_WPA_IE_LEN];
 137     BYTE            byRSNIE[MAX_WPA_IE_LEN];
 138     WORD            wWPALen;
 139     WORD            wRSNLen;
 140
 141     // Clear count
 142     unsigned int            uClearCount;
 143 //    BYTE            abyIEs[WLAN_BEACON_FR_MAXLEN];
 144     unsigned int            uIELength;
 145     QWORD           qwBSSTimestamp;
 146     QWORD           qwLocalTSF;     // local TSF timer
 147
 148     CARD_PHY_TYPE   eNetworkTypeInUse;
 149
 150     ERPObject       sERP;
 151     SRSNCapObject   sRSNCapObj;
 152     BYTE            abyIEs[1024];   // don't move this field !!
 153
 154 } __attribute__ ((__packed__))
 155 KnownBSS , *PKnownBSS;
 156
 157
 158
 159 typedef enum tagNODE_STATE {
 160     NODE_FREE,
 161     NODE_AGED,
 162     NODE_KNOWN,
 163     NODE_AUTH,
 164     NODE_ASSOC
 165 } NODE_STATE, *PNODE_STATE;
 166
 167
 168 // STA node info
 169 typedef struct tagKnownNodeDB {
 170     // STA info
 171     BOOL            bActive;
 172     BYTE            abyMACAddr[WLAN_ADDR_LEN];
 173     BYTE            abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 174     BYTE            abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 175     WORD            wTxDataRate;
 176     BOOL            bShortPreamble;
 177     BOOL            bERPExist;
 178     BOOL            bShortSlotTime;
 179     unsigned int            uInActiveCount;
 180     WORD            wMaxBasicRate;     //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
 181     WORD            wMaxSuppRate;      //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
 182     WORD            wSuppRate;
 183     BYTE            byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
 184     BYTE            byTopCCKBasicRate; //Records the highest basic rate in CCK mode
 185
 186     // For AP mode
 187     struct sk_buff_head sTxPSQueue;
 188     WORD            wCapInfo;
 189     WORD            wListenInterval;
 190     WORD            wAID;
 191     NODE_STATE      eNodeState;
 192     BOOL            bPSEnable;
 193     BOOL            bRxPSPoll;
 194     BYTE            byAuthSequence;
 195     unsigned long           ulLastRxJiffer;
 196     BYTE            bySuppRate;
 197     DWORD           dwFlags;
 198     WORD            wEnQueueCnt;
 199
 200     BOOL            bOnFly;
 201     unsigned long long       KeyRSC;
 202     BYTE            byKeyIndex;
 203     DWORD           dwKeyIndex;
 204     BYTE            byCipherSuite;
 205     DWORD           dwTSC47_16;
 206     WORD            wTSC15_0;
 207     unsigned int            uWepKeyLength;
 208     BYTE            abyWepKey[WLAN_WEPMAX_KEYLEN];
 209     //
 210     // Auto rate fallback vars
 211     BOOL            bIsInFallback;
 212     unsigned int            uAverageRSSI;
 213     unsigned int            uRateRecoveryTimeout;
 214     unsigned int            uRatePollTimeout;
 215     unsigned int            uTxFailures;
 216     unsigned int            uTxAttempts;
 217
 218     unsigned int            uTxRetry;
 219     unsigned int            uFailureRatio;
 220     unsigned int            uRetryRatio;
 221     unsigned int            uTxOk[MAX_RATE+1];
 222     unsigned int            uTxFail[MAX_RATE+1];
 223     unsigned int            uTimeCount;
 224
 225 } KnownNodeDB, *PKnownNodeDB;
 226
 227 /*---------------------  Export Functions  --------------------------*/
 228
 229 PKnownBSS BSSpSearchBSSList(void *hDeviceContext,
 230                             PBYTE pbyDesireBSSID,
 231                             PBYTE pbyDesireSSID,
 232                             CARD_PHY_TYPE ePhyType);
 233
 234 PKnownBSS BSSpAddrIsInBSSList(void *hDeviceContext,
 235                               PBYTE abyBSSID,
 236                               PWLAN_IE_SSID pSSID);
 237
 238 void BSSvClearBSSList(void *hDeviceContext, BOOL bKeepCurrBSSID);
 239
 240 BOOL BSSbInsertToBSSList(void *hDeviceContext,
 241                          PBYTE abyBSSIDAddr,
 242                          QWORD qwTimestamp,
 243                          WORD wBeaconInterval,
 244                          WORD wCapInfo,
 245                          BYTE byCurrChannel,
 246                          PWLAN_IE_SSID pSSID,
 247                          PWLAN_IE_SUPP_RATES pSuppRates,
 248                          PWLAN_IE_SUPP_RATES pExtSuppRates,
 249                          PERPObject psERP,
 250                          PWLAN_IE_RSN pRSN,
 251                          PWLAN_IE_RSN_EXT pRSNWPA,
 252                          PWLAN_IE_COUNTRY pIE_Country,
 253                          PWLAN_IE_QUIET pIE_Quiet,
 254                          unsigned int uIELength,
 255                          PBYTE pbyIEs,
 256                          void *pRxPacketContext);
 257
 258 BOOL BSSbUpdateToBSSList(void *hDeviceContext,
 259                          QWORD qwTimestamp,
 260                          WORD wBeaconInterval,
 261                          WORD wCapInfo,
 262                          BYTE byCurrChannel,
 263                          BOOL bChannelHit,
 264                          PWLAN_IE_SSID pSSID,
 265                          PWLAN_IE_SUPP_RATES pSuppRates,
 266                          PWLAN_IE_SUPP_RATES pExtSuppRates,
 267                          PERPObject psERP,
 268                          PWLAN_IE_RSN pRSN,
 269                          PWLAN_IE_RSN_EXT pRSNWPA,
 270                          PWLAN_IE_COUNTRY pIE_Country,
 271                          PWLAN_IE_QUIET pIE_Quiet,
 272                          PKnownBSS pBSSList,
 273                          unsigned int uIELength,
 274                          PBYTE pbyIEs,
 275                          void *pRxPacketContext);
 276
 277 BOOL BSSbIsSTAInNodeDB(void *hDeviceContext,
 278                        PBYTE abyDstAddr,
 279                        unsigned int *puNodeIndex);
 280
 281 void BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex);
 282
 283 void BSSvUpdateAPNode(void *hDeviceContext,
 284                       PWORD pwCapInfo,
 285                       PWLAN_IE_SUPP_RATES pItemRates,
 286                       PWLAN_IE_SUPP_RATES pExtSuppRates);
 287
 288 void BSSvSecondCallBack(void *hDeviceContext);
 289
 290 void BSSvUpdateNodeTxCounter(void *hDeviceContext,
 291                              PSStatCounter pStatistic,
 292                              BYTE byTSR,
 293                              BYTE byPktNO);
 294
 295 void BSSvRemoveOneNode(void *hDeviceContext,
 296                        unsigned int uNodeIndex);
 297
 298 void BSSvAddMulticastNode(void *hDeviceContext);
 299
 300 void BSSvClearNodeDBTable(void *hDeviceContext,
 301                           unsigned int uStartIndex);
 302
 303 void BSSvClearAnyBSSJoinRecord(void *hDeviceContext);
 304
 305 #endif /* __BSSDB_H__ */