Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 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 | * File: wroute.c |
| 20 | * |
| 21 | * Purpose: handle WMAC frame relay & filterring |
| 22 | * |
| 23 | * Author: Lyndon Chen |
| 24 | * |
| 25 | * Date: May 20, 2003 |
| 26 | * |
| 27 | * Functions: |
| 28 | * ROUTEbRelay - Relay packet |
| 29 | * |
| 30 | * Revision History: |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | |
| 35 | #if !defined(__MAC_H__) |
| 36 | #include "mac.h" |
| 37 | #endif |
| 38 | #if !defined(__TCRC_H__) |
| 39 | #include "tcrc.h" |
| 40 | #endif |
| 41 | #if !defined(__RXTX_H__) |
| 42 | #include "rxtx.h" |
| 43 | #endif |
| 44 | #if !defined(__WROUTE_H__) |
| 45 | #include "wroute.h" |
| 46 | #endif |
| 47 | #if !defined(__CARD_H__) |
| 48 | #include "card.h" |
| 49 | #endif |
| 50 | #if !defined(__BASEBAND_H__) |
| 51 | #include "baseband.h" |
| 52 | #endif |
| 53 | /*--------------------- Static Definitions -------------------------*/ |
| 54 | |
| 55 | /*--------------------- Static Classes ----------------------------*/ |
| 56 | |
| 57 | /*--------------------- Static Variables --------------------------*/ |
| 58 | static int msglevel =MSG_LEVEL_INFO; |
| 59 | //static int msglevel =MSG_LEVEL_DEBUG; |
| 60 | /*--------------------- Static Functions --------------------------*/ |
| 61 | |
| 62 | /*--------------------- Export Variables --------------------------*/ |
| 63 | |
| 64 | |
| 65 | |
| 66 | /* |
| 67 | * Description: |
| 68 | * Relay packet. Return TRUE if packet is copy to DMA1 |
| 69 | * |
| 70 | * Parameters: |
| 71 | * In: |
| 72 | * pDevice - |
| 73 | * pbySkbData - rx packet skb data |
| 74 | * Out: |
| 75 | * TURE, FALSE |
| 76 | * |
| 77 | * Return Value: TRUE if packet duplicate; otherwise FALSE |
| 78 | * |
| 79 | */ |
| 80 | BOOL ROUTEbRelay (PSDevice pDevice, PBYTE pbySkbData, UINT uDataLen, UINT uNodeIndex) |
| 81 | { |
| 82 | PSMgmtObject pMgmt = pDevice->pMgmt; |
| 83 | PSTxDesc pHeadTD, pLastTD; |
| 84 | UINT cbFrameBodySize; |
| 85 | UINT uMACfragNum; |
| 86 | BYTE byPktTyp; |
| 87 | BOOL bNeedEncryption = FALSE; |
| 88 | SKeyItem STempKey; |
| 89 | PSKeyItem pTransmitKey = NULL; |
| 90 | UINT cbHeaderSize; |
| 91 | UINT ii; |
| 92 | PBYTE pbyBSSID; |
| 93 | |
| 94 | |
| 95 | |
| 96 | |
| 97 | if (AVAIL_TD(pDevice, TYPE_AC0DMA)<=0) { |
| 98 | DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Relay can't allocate TD1..\n"); |
| 99 | return FALSE; |
| 100 | } |
| 101 | |
| 102 | pHeadTD = pDevice->apCurrTD[TYPE_AC0DMA]; |
| 103 | |
| 104 | pHeadTD->m_td1TD1.byTCR = (TCR_EDP|TCR_STP); |
| 105 | |
| 106 | memcpy(pDevice->sTxEthHeader.abyDstAddr, (PBYTE)pbySkbData, U_HEADER_LEN); |
| 107 | |
| 108 | cbFrameBodySize = uDataLen - U_HEADER_LEN; |
| 109 | |
| 110 | if (ntohs(pDevice->sTxEthHeader.wType) > MAX_DATA_LEN) { |
| 111 | cbFrameBodySize += 8; |
| 112 | } |
| 113 | |
| 114 | if (pDevice->bEncryptionEnable == TRUE) { |
| 115 | bNeedEncryption = TRUE; |
| 116 | |
| 117 | // get group key |
| 118 | pbyBSSID = pDevice->abyBroadcastAddr; |
| 119 | if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == FALSE) { |
| 120 | pTransmitKey = NULL; |
| 121 | DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"KEY is NULL. [%d]\n", pDevice->pMgmt->eCurrMode); |
| 122 | } else { |
| 123 | DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | if (pDevice->bEnableHostWEP) { |
| 128 | if (uNodeIndex >= 0) { |
| 129 | pTransmitKey = &STempKey; |
| 130 | pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; |
| 131 | pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; |
| 132 | pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; |
| 133 | pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; |
| 134 | pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; |
| 135 | memcpy(pTransmitKey->abyKey, |
| 136 | &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], |
| 137 | pTransmitKey->uKeyLength |
| 138 | ); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | uMACfragNum = cbGetFragCount(pDevice, pTransmitKey, cbFrameBodySize, &pDevice->sTxEthHeader); |
| 143 | |
| 144 | if (uMACfragNum > AVAIL_TD(pDevice,TYPE_AC0DMA)) { |
| 145 | return FALSE; |
| 146 | } |
| 147 | byPktTyp = (BYTE)pDevice->byPacketType; |
| 148 | |
| 149 | if (pDevice->bFixRate) { |
| 150 | if (pDevice->eCurrentPHYType == PHY_TYPE_11B) { |
| 151 | if (pDevice->uConnectionRate >= RATE_11M) { |
| 152 | pDevice->wCurrentRate = RATE_11M; |
| 153 | } else { |
| 154 | pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate; |
| 155 | } |
| 156 | } else { |
| 157 | if ((pDevice->eCurrentPHYType == PHY_TYPE_11A) && |
| 158 | (pDevice->uConnectionRate <= RATE_6M)) { |
| 159 | pDevice->wCurrentRate = RATE_6M; |
| 160 | } else { |
| 161 | if (pDevice->uConnectionRate >= RATE_54M) |
| 162 | pDevice->wCurrentRate = RATE_54M; |
| 163 | else |
| 164 | pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate; |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | else { |
| 169 | pDevice->wCurrentRate = pDevice->pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; |
| 170 | } |
| 171 | |
| 172 | if (pDevice->wCurrentRate <= RATE_11M) |
| 173 | byPktTyp = PK_TYPE_11B; |
| 174 | |
| 175 | vGenerateFIFOHeader(pDevice, byPktTyp, pDevice->pbyTmpBuff, bNeedEncryption, |
| 176 | cbFrameBodySize, TYPE_AC0DMA, pHeadTD, |
| 177 | &pDevice->sTxEthHeader, pbySkbData, pTransmitKey, uNodeIndex, |
| 178 | &uMACfragNum, |
| 179 | &cbHeaderSize |
| 180 | ); |
| 181 | |
| 182 | if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) { |
| 183 | // Disable PS |
| 184 | MACbPSWakeup(pDevice->PortOffset); |
| 185 | } |
| 186 | |
| 187 | pDevice->bPWBitOn = FALSE; |
| 188 | |
| 189 | pLastTD = pHeadTD; |
| 190 | for (ii = 0; ii < uMACfragNum; ii++) { |
| 191 | // Poll Transmit the adapter |
| 192 | wmb(); |
| 193 | pHeadTD->m_td0TD0.f1Owner=OWNED_BY_NIC; |
| 194 | wmb(); |
| 195 | if (ii == (uMACfragNum - 1)) |
| 196 | pLastTD = pHeadTD; |
| 197 | pHeadTD = pHeadTD->next; |
| 198 | } |
| 199 | |
| 200 | pLastTD->pTDInfo->skb = 0; |
| 201 | pLastTD->pTDInfo->byFlags = 0; |
| 202 | |
| 203 | pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD; |
| 204 | |
| 205 | MACvTransmitAC0(pDevice->PortOffset); |
| 206 | |
| 207 | return TRUE; |
| 208 | } |
| 209 | |
| 210 | |
| 211 | |