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 | * |
Justin P. Mattock | 789d1ae | 2012-08-20 08:43:13 -0700 | [diff] [blame] | 21 | * Purpose: handle WMAC frame relay & filtering |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 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 | |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 34 | #include "mac.h" |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 35 | #include "tcrc.h" |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 36 | #include "rxtx.h" |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 37 | #include "wroute.h" |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 38 | #include "card.h" |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 39 | #include "baseband.h" |
Jim Lieb | a7ad322 | 2009-08-12 14:54:09 -0700 | [diff] [blame] | 40 | |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 41 | /*--------------------- Static Definitions -------------------------*/ |
| 42 | |
| 43 | /*--------------------- Static Classes ----------------------------*/ |
| 44 | |
| 45 | /*--------------------- Static Variables --------------------------*/ |
| 46 | static int msglevel =MSG_LEVEL_INFO; |
| 47 | //static int msglevel =MSG_LEVEL_DEBUG; |
| 48 | /*--------------------- Static Functions --------------------------*/ |
| 49 | |
| 50 | /*--------------------- Export Variables --------------------------*/ |
| 51 | |
| 52 | |
| 53 | |
| 54 | /* |
| 55 | * Description: |
Charles Clément | 1b12068 | 2010-08-01 17:15:48 +0200 | [diff] [blame] | 56 | * Relay packet. Return true if packet is copy to DMA1 |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 57 | * |
| 58 | * Parameters: |
| 59 | * In: |
| 60 | * pDevice - |
| 61 | * pbySkbData - rx packet skb data |
| 62 | * Out: |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 63 | * true, false |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 64 | * |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 65 | * Return Value: true if packet duplicate; otherwise false |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 66 | * |
| 67 | */ |
Charles Clément | 7b6a001 | 2010-08-01 17:15:50 +0200 | [diff] [blame] | 68 | bool ROUTEbRelay (PSDevice pDevice, unsigned char *pbySkbData, unsigned int uDataLen, unsigned int uNodeIndex) |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 69 | { |
| 70 | PSMgmtObject pMgmt = pDevice->pMgmt; |
| 71 | PSTxDesc pHeadTD, pLastTD; |
Charles Clément | b6e95cd | 2010-06-02 09:52:01 -0700 | [diff] [blame] | 72 | unsigned int cbFrameBodySize; |
| 73 | unsigned int uMACfragNum; |
Charles Clément | 3fc9b58 | 2010-06-24 11:02:27 -0700 | [diff] [blame] | 74 | unsigned char byPktType; |
Charles Clément | 7b6a001 | 2010-08-01 17:15:50 +0200 | [diff] [blame] | 75 | bool bNeedEncryption = false; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 76 | SKeyItem STempKey; |
| 77 | PSKeyItem pTransmitKey = NULL; |
Charles Clément | b6e95cd | 2010-06-02 09:52:01 -0700 | [diff] [blame] | 78 | unsigned int cbHeaderSize; |
| 79 | unsigned int ii; |
Charles Clément | 2989e96 | 2010-06-05 15:13:47 -0700 | [diff] [blame] | 80 | unsigned char *pbyBSSID; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | if (AVAIL_TD(pDevice, TYPE_AC0DMA)<=0) { |
Jim Lieb | 7e809a9 | 2009-07-30 10:27:21 -0700 | [diff] [blame] | 86 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Relay can't allocate TD1..\n"); |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 87 | return false; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | pHeadTD = pDevice->apCurrTD[TYPE_AC0DMA]; |
| 91 | |
| 92 | pHeadTD->m_td1TD1.byTCR = (TCR_EDP|TCR_STP); |
| 93 | |
Charles Clément | 2989e96 | 2010-06-05 15:13:47 -0700 | [diff] [blame] | 94 | memcpy(pDevice->sTxEthHeader.abyDstAddr, (unsigned char *)pbySkbData, ETH_HLEN); |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 95 | |
Charles Clément | 96fe9ee | 2010-05-14 19:37:33 -0700 | [diff] [blame] | 96 | cbFrameBodySize = uDataLen - ETH_HLEN; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 97 | |
Charles Clément | 31c21b7 | 2010-05-18 11:30:19 -0700 | [diff] [blame] | 98 | if (ntohs(pDevice->sTxEthHeader.wType) > ETH_DATA_LEN) { |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 99 | cbFrameBodySize += 8; |
| 100 | } |
| 101 | |
Charles Clément | 1b12068 | 2010-08-01 17:15:48 +0200 | [diff] [blame] | 102 | if (pDevice->bEncryptionEnable == true) { |
| 103 | bNeedEncryption = true; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 104 | |
| 105 | // get group key |
| 106 | pbyBSSID = pDevice->abyBroadcastAddr; |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 107 | if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) { |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 108 | pTransmitKey = NULL; |
Jim Lieb | 7e809a9 | 2009-07-30 10:27:21 -0700 | [diff] [blame] | 109 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"KEY is NULL. [%d]\n", pDevice->pMgmt->eCurrMode); |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 110 | } else { |
Jim Lieb | 7e809a9 | 2009-07-30 10:27:21 -0700 | [diff] [blame] | 111 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | |
| 115 | if (pDevice->bEnableHostWEP) { |
Roel Kluin | ee93e19 | 2009-10-16 20:17:57 +0200 | [diff] [blame] | 116 | if (uNodeIndex < MAX_NODE_NUM + 1) { |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 117 | pTransmitKey = &STempKey; |
| 118 | pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; |
| 119 | pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; |
| 120 | pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; |
| 121 | pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; |
| 122 | pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; |
| 123 | memcpy(pTransmitKey->abyKey, |
| 124 | &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], |
| 125 | pTransmitKey->uKeyLength |
| 126 | ); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | uMACfragNum = cbGetFragCount(pDevice, pTransmitKey, cbFrameBodySize, &pDevice->sTxEthHeader); |
| 131 | |
| 132 | if (uMACfragNum > AVAIL_TD(pDevice,TYPE_AC0DMA)) { |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 133 | return false; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 134 | } |
Charles Clément | 3fc9b58 | 2010-06-24 11:02:27 -0700 | [diff] [blame] | 135 | byPktType = (unsigned char)pDevice->byPacketType; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 136 | |
| 137 | if (pDevice->bFixRate) { |
| 138 | if (pDevice->eCurrentPHYType == PHY_TYPE_11B) { |
| 139 | if (pDevice->uConnectionRate >= RATE_11M) { |
| 140 | pDevice->wCurrentRate = RATE_11M; |
| 141 | } else { |
Charles Clément | 2986db5 | 2010-06-24 11:02:26 -0700 | [diff] [blame] | 142 | pDevice->wCurrentRate = (unsigned short)pDevice->uConnectionRate; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 143 | } |
| 144 | } else { |
| 145 | if ((pDevice->eCurrentPHYType == PHY_TYPE_11A) && |
| 146 | (pDevice->uConnectionRate <= RATE_6M)) { |
| 147 | pDevice->wCurrentRate = RATE_6M; |
| 148 | } else { |
| 149 | if (pDevice->uConnectionRate >= RATE_54M) |
| 150 | pDevice->wCurrentRate = RATE_54M; |
| 151 | else |
Charles Clément | 2986db5 | 2010-06-24 11:02:26 -0700 | [diff] [blame] | 152 | pDevice->wCurrentRate = (unsigned short)pDevice->uConnectionRate; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 153 | } |
| 154 | } |
| 155 | } |
| 156 | else { |
| 157 | pDevice->wCurrentRate = pDevice->pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; |
| 158 | } |
| 159 | |
| 160 | if (pDevice->wCurrentRate <= RATE_11M) |
Jim Lieb | 7e809a9 | 2009-07-30 10:27:21 -0700 | [diff] [blame] | 161 | byPktType = PK_TYPE_11B; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 162 | |
Jim Lieb | 7e809a9 | 2009-07-30 10:27:21 -0700 | [diff] [blame] | 163 | vGenerateFIFOHeader(pDevice, byPktType, pDevice->pbyTmpBuff, bNeedEncryption, |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 164 | cbFrameBodySize, TYPE_AC0DMA, pHeadTD, |
| 165 | &pDevice->sTxEthHeader, pbySkbData, pTransmitKey, uNodeIndex, |
| 166 | &uMACfragNum, |
| 167 | &cbHeaderSize |
| 168 | ); |
| 169 | |
| 170 | if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) { |
| 171 | // Disable PS |
| 172 | MACbPSWakeup(pDevice->PortOffset); |
| 173 | } |
| 174 | |
Charles Clément | 5a5a2a6 | 2010-08-01 17:15:49 +0200 | [diff] [blame] | 175 | pDevice->bPWBitOn = false; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 176 | |
| 177 | pLastTD = pHeadTD; |
| 178 | for (ii = 0; ii < uMACfragNum; ii++) { |
| 179 | // Poll Transmit the adapter |
| 180 | wmb(); |
| 181 | pHeadTD->m_td0TD0.f1Owner=OWNED_BY_NIC; |
| 182 | wmb(); |
| 183 | if (ii == (uMACfragNum - 1)) |
| 184 | pLastTD = pHeadTD; |
| 185 | pHeadTD = pHeadTD->next; |
| 186 | } |
| 187 | |
| 188 | pLastTD->pTDInfo->skb = 0; |
| 189 | pLastTD->pTDInfo->byFlags = 0; |
| 190 | |
| 191 | pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD; |
| 192 | |
| 193 | MACvTransmitAC0(pDevice->PortOffset); |
| 194 | |
Charles Clément | 1b12068 | 2010-08-01 17:15:48 +0200 | [diff] [blame] | 195 | return true; |
Forest Bond | 5449c68 | 2009-04-25 10:30:44 -0400 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | |
| 199 | |