drivers/staging/vt6655/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 /*---------------------  Export Definitions -------------------------*/
  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_RATE            12
  67
  68 #define MAX_WPA_IE_LEN      64
  69
  70 /*---------------------  Export Classes  ----------------------------*/
  71
  72 /*---------------------  Export Variables  --------------------------*/
  73
  74 /*---------------------  Export Types  ------------------------------*/
  75
  76 //
  77 // IEEE 802.11 Structures and definitions
  78 //
  79
  80 typedef enum _NDIS_802_11_NETWORK_TYPE
  81 {
  82         Ndis802_11FH,
  83         Ndis802_11DS,
  84         Ndis802_11OFDM5,
  85         Ndis802_11OFDM24,
  86         Ndis802_11NetworkTypeMax    // not a real type, defined as an upper bound
  87 } NDIS_802_11_NETWORK_TYPE, *PNDIS_802_11_NETWORK_TYPE;
  88
  89 typedef struct tagSERPObject {
  90         bool bERPExist;
  91         unsigned char byERP;
  92 } ERPObject, *PERPObject;
  93
  94 typedef struct tagSRSNCapObject {
  95         bool bRSNCapExist;
  96         unsigned short wRSNCap;
  97 } SRSNCapObject, *PSRSNCapObject;
  98
  99 // BSS info(AP)
 100 #pragma pack(1)
 101 typedef struct tagKnownBSS {
 102         // BSS info
 103         bool bActive;
 104         unsigned char abyBSSID[WLAN_BSSID_LEN];
 105         unsigned int    uChannel;
 106         unsigned char abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
 107         unsigned char abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
 108         unsigned int    uRSSI;
 109         unsigned char bySQ;
 110         unsigned short wBeaconInterval;
 111         unsigned short wCapInfo;
 112         unsigned char abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
 113         unsigned char byRxRate;
 114
 115         unsigned char byRSSIStatCnt;
 116         long            ldBmMAX;
 117         long            ldBmAverage[RSSI_STAT_COUNT];
 118         long            ldBmAverRange;
 119         //For any BSSID selection improvment
 120         bool bSelected;
 121
 122         //++ WPA informations
 123         bool bWPAValid;
 124         unsigned char byGKType;
 125         unsigned char abyPKType[4];
 126         unsigned short wPKCount;
 127         unsigned char abyAuthType[4];
 128         unsigned short wAuthCount;
 129         unsigned char byDefaultK_as_PK;
 130         unsigned char byReplayIdx;
 131         //--
 132
 133         //++ WPA2 informations
 134         bool bWPA2Valid;
 135         unsigned char byCSSGK;
 136         unsigned short wCSSPKCount;
 137         unsigned char abyCSSPK[4];
 138         unsigned short wAKMSSAuthCount;
 139         unsigned char abyAKMSSAuthType[4];
 140
 141         //++  wpactl
 142         unsigned char byWPAIE[MAX_WPA_IE_LEN];
 143         unsigned char byRSNIE[MAX_WPA_IE_LEN];
 144         unsigned short wWPALen;
 145         unsigned short wRSNLen;
 146
 147         // Clear count
 148         unsigned int    uClearCount;
 149         unsigned int    uIELength;
 150         QWORD           qwBSSTimestamp;
 151         QWORD           qwLocalTSF;     // local TSF timer
 152
 153 //    NDIS_802_11_NETWORK_TYPE    NetworkTypeInUse;
 154         CARD_PHY_TYPE   eNetworkTypeInUse;
 155
 156         ERPObject       sERP;
 157         SRSNCapObject   sRSNCapObj;
 158         unsigned char abyIEs[1024];   // don't move this field !!
 159 } __attribute__ ((__packed__))
 160 KnownBSS , *PKnownBSS;
 161
 162 //2006-1116-01,<Add> by NomadZhao
 163 #pragma pack()
 164
 165 typedef enum tagNODE_STATE {
 166         NODE_FREE,
 167         NODE_AGED,
 168         NODE_KNOWN,
 169         NODE_AUTH,
 170         NODE_ASSOC
 171 } NODE_STATE, *PNODE_STATE;
 172
 173 // STA node info
 174 typedef struct tagKnownNodeDB {
 175         // STA info
 176         bool bActive;
 177         unsigned char abyMACAddr[WLAN_ADDR_LEN];
 178         unsigned char abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 179         unsigned char abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
 180         unsigned short wTxDataRate;
 181         bool bShortPreamble;
 182         bool bERPExist;
 183         bool bShortSlotTime;
 184         unsigned int    uInActiveCount;
 185         unsigned short wMaxBasicRate;     //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
 186         unsigned short wMaxSuppRate;      //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
 187         unsigned short wSuppRate;
 188         unsigned char byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
 189         unsigned char byTopCCKBasicRate; //Records the highest basic rate in CCK mode
 190
 191         // For AP mode
 192         struct sk_buff_head sTxPSQueue;
 193         unsigned short wCapInfo;
 194         unsigned short wListenInterval;
 195         unsigned short wAID;
 196         NODE_STATE      eNodeState;
 197         bool bPSEnable;
 198         bool bRxPSPoll;
 199         unsigned char byAuthSequence;
 200         unsigned long ulLastRxJiffer;
 201         unsigned char bySuppRate;
 202         unsigned long dwFlags;
 203         unsigned short wEnQueueCnt;
 204
 205         bool bOnFly;
 206         unsigned long long       KeyRSC;
 207         unsigned char byKeyIndex;
 208         unsigned long dwKeyIndex;
 209         unsigned char byCipherSuite;
 210         unsigned long dwTSC47_16;
 211         unsigned short wTSC15_0;
 212         unsigned int    uWepKeyLength;
 213         unsigned char abyWepKey[WLAN_WEPMAX_KEYLEN];
 214         //
 215         // Auto rate fallback vars
 216         bool bIsInFallback;
 217         unsigned int    uAverageRSSI;
 218         unsigned int    uRateRecoveryTimeout;
 219         unsigned int    uRatePollTimeout;
 220         unsigned int    uTxFailures;
 221         unsigned int    uTxAttempts;
 222
 223         unsigned int    uTxRetry;
 224         unsigned int    uFailureRatio;
 225         unsigned int    uRetryRatio;
 226         unsigned int    uTxOk[MAX_RATE+1];
 227         unsigned int    uTxFail[MAX_RATE+1];
 228         unsigned int    uTimeCount;
 229 } KnownNodeDB, *PKnownNodeDB;
 230
 231 /*---------------------  Export Functions  --------------------------*/
 232
 233 PKnownBSS
 234 BSSpSearchBSSList(
 235         void *hDeviceContext,
 236         unsigned char *pbyDesireBSSID,
 237         unsigned char *pbyDesireSSID,
 238         CARD_PHY_TYPE ePhyType
 239 );
 240
 241 PKnownBSS
 242 BSSpAddrIsInBSSList(
 243         void *hDeviceContext,
 244         unsigned char *abyBSSID,
 245         PWLAN_IE_SSID pSSID
 246 );
 247
 248 void
 249 BSSvClearBSSList(
 250         void *hDeviceContext,
 251         bool bKeepCurrBSSID
 252 );
 253
 254 bool
 255 BSSbInsertToBSSList(
 256         void *hDeviceContext,
 257         unsigned char *abyBSSIDAddr,
 258         QWORD qwTimestamp,
 259         unsigned short wBeaconInterval,
 260         unsigned short wCapInfo,
 261         unsigned char byCurrChannel,
 262         PWLAN_IE_SSID pSSID,
 263         PWLAN_IE_SUPP_RATES pSuppRates,
 264         PWLAN_IE_SUPP_RATES pExtSuppRates,
 265         PERPObject psERP,
 266         PWLAN_IE_RSN pRSN,
 267         PWLAN_IE_RSN_EXT pRSNWPA,
 268         PWLAN_IE_COUNTRY pIE_Country,
 269         PWLAN_IE_QUIET pIE_Quiet,
 270         unsigned int uIELength,
 271         unsigned char *pbyIEs,
 272         void *pRxPacketContext
 273 );
 274
 275 bool
 276 BSSbUpdateToBSSList(
 277         void *hDeviceContext,
 278         QWORD qwTimestamp,
 279         unsigned short wBeaconInterval,
 280         unsigned short wCapInfo,
 281         unsigned char byCurrChannel,
 282         bool bChannelHit,
 283         PWLAN_IE_SSID pSSID,
 284         PWLAN_IE_SUPP_RATES pSuppRates,
 285         PWLAN_IE_SUPP_RATES pExtSuppRates,
 286         PERPObject psERP,
 287         PWLAN_IE_RSN pRSN,
 288         PWLAN_IE_RSN_EXT pRSNWPA,
 289         PWLAN_IE_COUNTRY pIE_Country,
 290         PWLAN_IE_QUIET pIE_Quiet,
 291         PKnownBSS pBSSList,
 292         unsigned int uIELength,
 293         unsigned char *pbyIEs,
 294         void *pRxPacketContext
 295 );
 296
 297 bool
 298 BSSDBbIsSTAInNodeDB(void *hDeviceContext, unsigned char *abyDstAddr,
 299                     unsigned int *puNodeIndex);
 300
 301 void
 302 BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex);
 303
 304 void
 305 BSSvUpdateAPNode(
 306         void *hDeviceContext,
 307         unsigned short *pwCapInfo,
 308         PWLAN_IE_SUPP_RATES pItemRates,
 309         PWLAN_IE_SUPP_RATES pExtSuppRates
 310 );
 311
 312 void
 313 BSSvSecondCallBack(
 314         void *hDeviceContext
 315 );
 316
 317 void
 318 BSSvUpdateNodeTxCounter(
 319         void *hDeviceContext,
 320         unsigned char byTsr0,
 321         unsigned char byTsr1,
 322         unsigned char *pbyBuffer,
 323         unsigned int uFIFOHeaderSize
 324 );
 325
 326 void
 327 BSSvRemoveOneNode(
 328         void *hDeviceContext,
 329         unsigned int uNodeIndex
 330 );
 331
 332 void
 333 BSSvAddMulticastNode(
 334         void *hDeviceContext
 335 );
 336
 337 void
 338 BSSvClearNodeDBTable(
 339         void *hDeviceContext,
 340         unsigned int uStartIndex
 341 );
 342
 343 void
 344 BSSvClearAnyBSSJoinRecord(
 345         void *hDeviceContext
 346 );
 347
 348 #endif //__BSSDB_H__