Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1996, 2005 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: IEEE11h.c |
| 21 | * |
| 22 | * Purpose: |
| 23 | * |
| 24 | * Functions: |
| 25 | * |
| 26 | * Revision History: |
| 27 | * |
| 28 | * Author: Yiching Chen |
| 29 | * |
| 30 | * Date: Mar. 31, 2005 |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | |
| 35 | #if !defined(__TTYPE_H__) |
| 36 | #include "ttype.h" |
| 37 | #endif |
| 38 | #if !defined(__UMEM_H__) |
| 39 | #include "umem.h" |
| 40 | #endif |
| 41 | #if !defined(__TMACRO_H__) |
| 42 | #include "tmacro.h" |
| 43 | #endif |
| 44 | #if !defined(__TETHER_H__) |
| 45 | #include "tether.h" |
| 46 | #endif |
| 47 | #if !defined(__IEEE11h_H__) |
| 48 | #include "IEEE11h.h" |
| 49 | #endif |
| 50 | |
| 51 | #if !defined(__DEVICE_H__) |
| 52 | #include "device.h" |
| 53 | #endif |
| 54 | #if !defined(__WMGR_H__) |
| 55 | #include "wmgr.h" |
| 56 | #endif |
| 57 | #if !defined(__RXTX_H__) |
| 58 | #include "rxtx.h" |
| 59 | #endif |
| 60 | |
| 61 | |
| 62 | |
| 63 | /*--------------------- Static Definitions -------------------------*/ |
| 64 | static int msglevel =MSG_LEVEL_INFO; |
| 65 | |
| 66 | #pragma pack(1) |
| 67 | |
| 68 | typedef struct _WLAN_FRAME_ACTION { |
| 69 | WLAN_80211HDR_A3 Header; |
| 70 | BYTE byCategory; |
| 71 | BYTE byAction; |
| 72 | BYTE abyVars[1]; |
| 73 | } WLAN_FRAME_ACTION, *PWLAN_FRAME_ACTION; |
| 74 | |
| 75 | typedef struct _WLAN_FRAME_MSRREQ { |
| 76 | WLAN_80211HDR_A3 Header; |
| 77 | BYTE byCategory; |
| 78 | BYTE byAction; |
| 79 | BYTE byDialogToken; |
| 80 | WLAN_IE_MEASURE_REQ sMSRReqEIDs[1]; |
| 81 | } WLAN_FRAME_MSRREQ, *PWLAN_FRAME_MSRREQ; |
| 82 | |
| 83 | typedef struct _WLAN_FRAME_MSRREP { |
| 84 | WLAN_80211HDR_A3 Header; |
| 85 | BYTE byCategory; |
| 86 | BYTE byAction; |
| 87 | BYTE byDialogToken; |
| 88 | WLAN_IE_MEASURE_REP sMSRRepEIDs[1]; |
| 89 | } WLAN_FRAME_MSRREP, *PWLAN_FRAME_MSRREP; |
| 90 | |
| 91 | typedef struct _WLAN_FRAME_TPCREQ { |
| 92 | WLAN_80211HDR_A3 Header; |
| 93 | BYTE byCategory; |
| 94 | BYTE byAction; |
| 95 | BYTE byDialogToken; |
| 96 | WLAN_IE_TPC_REQ sTPCReqEIDs; |
| 97 | } WLAN_FRAME_TPCREQ, *PWLAN_FRAME_TPCREQ; |
| 98 | |
| 99 | typedef struct _WLAN_FRAME_TPCREP { |
| 100 | WLAN_80211HDR_A3 Header; |
| 101 | BYTE byCategory; |
| 102 | BYTE byAction; |
| 103 | BYTE byDialogToken; |
| 104 | WLAN_IE_TPC_REP sTPCRepEIDs; |
| 105 | } WLAN_FRAME_TPCREP, *PWLAN_FRAME_TPCREP; |
| 106 | |
| 107 | #pragma pack() |
| 108 | |
| 109 | // action field reference ieee 802.11h Table 20e |
| 110 | #define ACTION_MSRREQ 0 |
| 111 | #define ACTION_MSRREP 1 |
| 112 | #define ACTION_TPCREQ 2 |
| 113 | #define ACTION_TPCREP 3 |
| 114 | #define ACTION_CHSW 4 |
| 115 | |
| 116 | /*--------------------- Static Classes ----------------------------*/ |
| 117 | |
| 118 | /*--------------------- Static Variables --------------------------*/ |
| 119 | |
| 120 | /*--------------------- Static Functions --------------------------*/ |
| 121 | static BOOL s_bRxMSRReq(PSMgmtObject pMgmt, PWLAN_FRAME_MSRREQ pMSRReq, UINT uLength) |
| 122 | { |
| 123 | UINT uNumOfEIDs = 0; |
| 124 | BOOL bResult = TRUE; |
| 125 | |
| 126 | if (uLength <= WLAN_A3FR_MAXLEN) { |
| 127 | MEMvCopy(pMgmt->abyCurrentMSRReq, pMSRReq, uLength); |
| 128 | } |
| 129 | uNumOfEIDs = ((uLength - OFFSET(WLAN_FRAME_MSRREQ, sMSRReqEIDs))/ (sizeof(WLAN_IE_MEASURE_REQ))); |
| 130 | pMgmt->pCurrMeasureEIDRep = &(((PWLAN_FRAME_MSRREP) (pMgmt->abyCurrentMSRRep))->sMSRRepEIDs[0]); |
| 131 | pMgmt->uLengthOfRepEIDs = 0; |
| 132 | bResult = CARDbStartMeasure(pMgmt->pAdapter, |
| 133 | ((PWLAN_FRAME_MSRREQ) (pMgmt->abyCurrentMSRReq))->sMSRReqEIDs, |
| 134 | uNumOfEIDs |
| 135 | ); |
| 136 | return (bResult); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | static BOOL s_bRxTPCReq(PSMgmtObject pMgmt, PWLAN_FRAME_TPCREQ pTPCReq, BYTE byRate, BYTE byRSSI) |
| 141 | { |
| 142 | PWLAN_FRAME_TPCREP pFrame; |
| 143 | PSTxMgmtPacket pTxPacket = NULL; |
| 144 | |
| 145 | |
| 146 | pTxPacket = (PSTxMgmtPacket)pMgmt->pbyMgmtPacketPool; |
| 147 | memset(pTxPacket, 0, sizeof(STxMgmtPacket) + WLAN_A3FR_MAXLEN); |
| 148 | pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket)); |
| 149 | |
| 150 | pFrame = (PWLAN_FRAME_TPCREP)((PBYTE)pTxPacket + sizeof(STxMgmtPacket)); |
| 151 | |
| 152 | pFrame->Header.wFrameCtl = ( WLAN_SET_FC_FTYPE(WLAN_FTYPE_MGMT) | |
| 153 | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_ACTION) |
| 154 | ); |
| 155 | |
| 156 | MEMvCopy( pFrame->Header.abyAddr1, pTPCReq->Header.abyAddr2, WLAN_ADDR_LEN); |
| 157 | MEMvCopy( pFrame->Header.abyAddr2, CARDpGetCurrentAddress(pMgmt->pAdapter), WLAN_ADDR_LEN); |
| 158 | MEMvCopy( pFrame->Header.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); |
| 159 | |
| 160 | pFrame->byCategory = 0; |
| 161 | pFrame->byAction = 3; |
| 162 | pFrame->byDialogToken = ((PWLAN_FRAME_MSRREQ) (pMgmt->abyCurrentMSRReq))->byDialogToken; |
| 163 | |
| 164 | pFrame->sTPCRepEIDs.byElementID = WLAN_EID_TPC_REP; |
| 165 | pFrame->sTPCRepEIDs.len = 2; |
| 166 | pFrame->sTPCRepEIDs.byTxPower = CARDbyGetTransmitPower(pMgmt->pAdapter); |
| 167 | switch (byRate) { |
| 168 | case RATE_54M: |
| 169 | pFrame->sTPCRepEIDs.byLinkMargin = 65 - byRSSI; |
| 170 | break; |
| 171 | case RATE_48M: |
| 172 | pFrame->sTPCRepEIDs.byLinkMargin = 66 - byRSSI; |
| 173 | break; |
| 174 | case RATE_36M: |
| 175 | pFrame->sTPCRepEIDs.byLinkMargin = 70 - byRSSI; |
| 176 | break; |
| 177 | case RATE_24M: |
| 178 | pFrame->sTPCRepEIDs.byLinkMargin = 74 - byRSSI; |
| 179 | break; |
| 180 | case RATE_18M: |
| 181 | pFrame->sTPCRepEIDs.byLinkMargin = 77 - byRSSI; |
| 182 | break; |
| 183 | case RATE_12M: |
| 184 | pFrame->sTPCRepEIDs.byLinkMargin = 79 - byRSSI; |
| 185 | break; |
| 186 | case RATE_9M: |
| 187 | pFrame->sTPCRepEIDs.byLinkMargin = 81 - byRSSI; |
| 188 | break; |
| 189 | case RATE_6M: |
| 190 | default: |
| 191 | pFrame->sTPCRepEIDs.byLinkMargin = 82 - byRSSI; |
| 192 | break; |
| 193 | } |
| 194 | |
| 195 | pTxPacket->cbMPDULen = sizeof(WLAN_FRAME_TPCREP); |
| 196 | pTxPacket->cbPayloadLen = sizeof(WLAN_FRAME_TPCREP) - WLAN_HDR_ADDR3_LEN; |
| 197 | if (csMgmt_xmit(pMgmt->pAdapter, pTxPacket) != CMD_STATUS_PENDING) |
| 198 | return (FALSE); |
| 199 | return (TRUE); |
| 200 | // return (CARDbSendPacket(pMgmt->pAdapter, pFrame, PKT_TYPE_802_11_MNG, sizeof(WLAN_FRAME_TPCREP))); |
| 201 | |
| 202 | } |
| 203 | |
| 204 | |
| 205 | /*--------------------- Export Variables --------------------------*/ |
| 206 | |
| 207 | /*--------------------- Export Functions --------------------------*/ |
| 208 | |
| 209 | |
| 210 | /*+ |
| 211 | * |
| 212 | * Description: |
| 213 | * Handles action management frames. |
| 214 | * |
| 215 | * Parameters: |
| 216 | * In: |
| 217 | * pMgmt - Management Object structure |
| 218 | * pRxPacket - Received packet |
| 219 | * Out: |
| 220 | * none |
| 221 | * |
| 222 | * Return Value: None. |
| 223 | * |
| 224 | -*/ |
| 225 | BOOL |
| 226 | IEEE11hbMgrRxAction ( |
| 227 | IN PVOID pMgmtHandle, |
| 228 | IN PVOID pRxPacket |
| 229 | ) |
| 230 | { |
| 231 | PSMgmtObject pMgmt = (PSMgmtObject) pMgmtHandle; |
| 232 | PWLAN_FRAME_ACTION pAction = NULL; |
| 233 | UINT uLength = 0; |
| 234 | PWLAN_IE_CH_SW pChannelSwitch = NULL; |
| 235 | |
| 236 | |
| 237 | // decode the frame |
| 238 | uLength = ((PSRxMgmtPacket)pRxPacket)->cbMPDULen; |
| 239 | if (uLength > WLAN_A3FR_MAXLEN) { |
| 240 | return (FALSE); |
| 241 | } |
| 242 | |
| 243 | |
| 244 | pAction = (PWLAN_FRAME_ACTION) (((PSRxMgmtPacket)pRxPacket)->p80211Header); |
| 245 | |
| 246 | if (pAction->byCategory == 0) { |
| 247 | switch (pAction->byAction) { |
| 248 | case ACTION_MSRREQ: |
| 249 | return (s_bRxMSRReq(pMgmt, (PWLAN_FRAME_MSRREQ) pAction, uLength)); |
| 250 | break; |
| 251 | case ACTION_MSRREP: |
| 252 | break; |
| 253 | case ACTION_TPCREQ: |
| 254 | return (s_bRxTPCReq(pMgmt, |
| 255 | (PWLAN_FRAME_TPCREQ) pAction, |
| 256 | ((PSRxMgmtPacket)pRxPacket)->byRxRate, |
| 257 | (BYTE) ((PSRxMgmtPacket)pRxPacket)->uRSSI)); |
| 258 | break; |
| 259 | case ACTION_TPCREP: |
| 260 | break; |
| 261 | case ACTION_CHSW: |
| 262 | pChannelSwitch = (PWLAN_IE_CH_SW) (pAction->abyVars); |
| 263 | if ((pChannelSwitch->byElementID == WLAN_EID_CH_SWITCH) && |
| 264 | (pChannelSwitch->len == 3)) { |
| 265 | // valid element id |
| 266 | CARDbChannelSwitch( pMgmt->pAdapter, |
| 267 | pChannelSwitch->byMode, |
| 268 | CARDbyGetChannelMapping(pMgmt->pAdapter, pChannelSwitch->byChannel, pMgmt->eCurrentPHYMode), |
| 269 | pChannelSwitch->byCount |
| 270 | ); |
| 271 | } |
| 272 | break; |
| 273 | default: |
| 274 | DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Unknown Action = %d\n", pAction->byAction); |
| 275 | break; |
| 276 | } |
| 277 | } else { |
| 278 | DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Unknown Category = %d\n", pAction->byCategory); |
| 279 | pAction->byCategory |= 0x80; |
| 280 | |
| 281 | //return (CARDbSendPacket(pMgmt->pAdapter, pAction, PKT_TYPE_802_11_MNG, uLength)); |
| 282 | return (TRUE); |
| 283 | } |
| 284 | return (TRUE); |
| 285 | } |
| 286 | |
| 287 | |
| 288 | BOOL IEEE11hbMSRRepTx ( |
| 289 | IN PVOID pMgmtHandle |
| 290 | ) |
| 291 | { |
| 292 | PSMgmtObject pMgmt = (PSMgmtObject) pMgmtHandle; |
| 293 | PWLAN_FRAME_MSRREP pMSRRep = (PWLAN_FRAME_MSRREP) (pMgmt->abyCurrentMSRRep + sizeof(STxMgmtPacket)); |
| 294 | UINT uLength = 0; |
| 295 | PSTxMgmtPacket pTxPacket = NULL; |
| 296 | |
| 297 | pTxPacket = (PSTxMgmtPacket)pMgmt->abyCurrentMSRRep; |
| 298 | memset(pTxPacket, 0, sizeof(STxMgmtPacket) + WLAN_A3FR_MAXLEN); |
| 299 | pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket)); |
| 300 | |
| 301 | |
| 302 | pMSRRep->Header.wFrameCtl = ( WLAN_SET_FC_FTYPE(WLAN_FTYPE_MGMT) | |
| 303 | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_ACTION) |
| 304 | ); |
| 305 | |
| 306 | MEMvCopy( pMSRRep->Header.abyAddr1, ((PWLAN_FRAME_MSRREQ) (pMgmt->abyCurrentMSRReq))->Header.abyAddr2, WLAN_ADDR_LEN); |
| 307 | MEMvCopy( pMSRRep->Header.abyAddr2, CARDpGetCurrentAddress(pMgmt->pAdapter), WLAN_ADDR_LEN); |
| 308 | MEMvCopy( pMSRRep->Header.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); |
| 309 | |
| 310 | pMSRRep->byCategory = 0; |
| 311 | pMSRRep->byAction = 1; |
| 312 | pMSRRep->byDialogToken = ((PWLAN_FRAME_MSRREQ) (pMgmt->abyCurrentMSRReq))->byDialogToken; |
| 313 | |
| 314 | uLength = pMgmt->uLengthOfRepEIDs + OFFSET(WLAN_FRAME_MSRREP, sMSRRepEIDs); |
| 315 | |
| 316 | pTxPacket->cbMPDULen = uLength; |
| 317 | pTxPacket->cbPayloadLen = uLength - WLAN_HDR_ADDR3_LEN; |
| 318 | if (csMgmt_xmit(pMgmt->pAdapter, pTxPacket) != CMD_STATUS_PENDING) |
| 319 | return (FALSE); |
| 320 | return (TRUE); |
| 321 | // return (CARDbSendPacket(pMgmt->pAdapter, pMSRRep, PKT_TYPE_802_11_MNG, uLength)); |
| 322 | |
| 323 | } |
| 324 | |