2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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.
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.
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.
22 * Purpose: Handles the Basic Service Set & Node Database functions
33 #include <linux/skbuff.h>
39 /*--------------------- Export Definitions -------------------------*/
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
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
52 #define RSSI_STAT_COUNT 10
53 #define MAX_CHECK_RSSI_COUNT 8
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
69 #define MAX_WPA_IE_LEN 64
72 /*--------------------- Export Classes ----------------------------*/
74 /*--------------------- Export Variables --------------------------*/
77 /*--------------------- Export Types ------------------------------*/
80 // IEEE 802.11 Structures and definitions
83 typedef struct tagSERPObject {
86 } ERPObject, *PERPObject;
89 typedef struct tagSRSNCapObject {
92 } SRSNCapObject, *PSRSNCapObject;
96 typedef struct tagKnownBSS {
99 BYTE abyBSSID[WLAN_BSSID_LEN];
100 unsigned int uChannel;
101 BYTE abySuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
102 BYTE abyExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1];
105 WORD wBeaconInterval;
107 BYTE abySSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
113 signed long ldBmAverage[RSSI_STAT_COUNT];
114 signed long ldBmAverRange;
115 //For any BSSID selection improvment
118 //++ WPA informations
125 BYTE byDefaultK_as_PK;
129 //++ WPA2 informations
134 WORD wAKMSSAuthCount;
135 BYTE abyAKMSSAuthType[4];
138 BYTE byWPAIE[MAX_WPA_IE_LEN];
139 BYTE byRSNIE[MAX_WPA_IE_LEN];
144 unsigned int uClearCount;
145 // BYTE abyIEs[WLAN_BEACON_FR_MAXLEN];
146 unsigned int uIELength;
147 QWORD qwBSSTimestamp;
148 QWORD qwLocalTSF; // local TSF timer
150 CARD_PHY_TYPE eNetworkTypeInUse;
153 SRSNCapObject sRSNCapObj;
154 BYTE abyIEs[1024]; // don't move this field !!
156 } __attribute__ ((__packed__))
157 KnownBSS , *PKnownBSS;
161 typedef enum tagNODE_STATE {
167 } NODE_STATE, *PNODE_STATE;
171 typedef struct tagKnownNodeDB {
174 BYTE abyMACAddr[WLAN_ADDR_LEN];
175 BYTE abyCurrSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
176 BYTE abyCurrExtSuppRates[WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN];
181 unsigned int uInActiveCount;
182 WORD wMaxBasicRate; //Get from byTopOFDMBasicRate or byTopCCKBasicRate which depends on packetTyp.
183 WORD wMaxSuppRate; //Records the highest supported rate getting from SuppRates IE and ExtSuppRates IE in Beacon.
185 BYTE byTopOFDMBasicRate;//Records the highest basic rate in OFDM mode
186 BYTE byTopCCKBasicRate; //Records the highest basic rate in CCK mode
189 struct sk_buff_head sTxPSQueue;
191 WORD wListenInterval;
193 NODE_STATE eNodeState;
197 unsigned long ulLastRxJiffer;
203 unsigned long long KeyRSC;
209 unsigned int uWepKeyLength;
210 BYTE abyWepKey[WLAN_WEPMAX_KEYLEN];
212 // Auto rate fallback vars
214 unsigned int uAverageRSSI;
215 unsigned int uRateRecoveryTimeout;
216 unsigned int uRatePollTimeout;
217 unsigned int uTxFailures;
218 unsigned int uTxAttempts;
220 unsigned int uTxRetry;
221 unsigned int uFailureRatio;
222 unsigned int uRetryRatio;
223 unsigned int uTxOk[MAX_RATE+1];
224 unsigned int uTxFail[MAX_RATE+1];
225 unsigned int uTimeCount;
227 } KnownNodeDB, *PKnownNodeDB;
229 /*--------------------- Export Functions --------------------------*/
231 PKnownBSS BSSpSearchBSSList(void *hDeviceContext,
232 PBYTE pbyDesireBSSID,
234 CARD_PHY_TYPE ePhyType);
236 PKnownBSS BSSpAddrIsInBSSList(void *hDeviceContext,
238 PWLAN_IE_SSID pSSID);
240 void BSSvClearBSSList(void *hDeviceContext, BOOL bKeepCurrBSSID);
242 BOOL BSSbInsertToBSSList(void *hDeviceContext,
245 WORD wBeaconInterval,
249 PWLAN_IE_SUPP_RATES pSuppRates,
250 PWLAN_IE_SUPP_RATES pExtSuppRates,
253 PWLAN_IE_RSN_EXT pRSNWPA,
254 PWLAN_IE_COUNTRY pIE_Country,
255 PWLAN_IE_QUIET pIE_Quiet,
256 unsigned int uIELength,
258 void *pRxPacketContext);
260 BOOL BSSbUpdateToBSSList(void *hDeviceContext,
262 WORD wBeaconInterval,
267 PWLAN_IE_SUPP_RATES pSuppRates,
268 PWLAN_IE_SUPP_RATES pExtSuppRates,
271 PWLAN_IE_RSN_EXT pRSNWPA,
272 PWLAN_IE_COUNTRY pIE_Country,
273 PWLAN_IE_QUIET pIE_Quiet,
275 unsigned int uIELength,
277 void *pRxPacketContext);
279 BOOL BSSbIsSTAInNodeDB(void *hDeviceContext,
281 unsigned int *puNodeIndex);
283 void BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex);
285 void BSSvUpdateAPNode(void *hDeviceContext,
287 PWLAN_IE_SUPP_RATES pItemRates,
288 PWLAN_IE_SUPP_RATES pExtSuppRates);
290 void BSSvSecondCallBack(void *hDeviceContext);
292 void BSSvUpdateNodeTxCounter(void *hDeviceContext,
293 PSStatCounter pStatistic,
297 void BSSvRemoveOneNode(void *hDeviceContext,
298 unsigned int uNodeIndex);
300 void BSSvAddMulticastNode(void *hDeviceContext);
302 void BSSvClearNodeDBTable(void *hDeviceContext,
303 unsigned int uStartIndex);
305 void BSSvClearAnyBSSJoinRecord(void *hDeviceContext);
307 #endif /* __BSSDB_H__ */