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.
21 * Purpose: handle WMAC frame relay & filtering
28 * ROUTEbRelay - Relay packet
41 /*--------------------- Static Definitions -------------------------*/
43 /*--------------------- Static Classes ----------------------------*/
45 /*--------------------- Static Variables --------------------------*/
46 static int msglevel = MSG_LEVEL_INFO;
47 //static int msglevel =MSG_LEVEL_DEBUG;
48 /*--------------------- Static Functions --------------------------*/
50 /*--------------------- Export Variables --------------------------*/
54 * Relay packet. Return true if packet is copy to DMA1
59 * pbySkbData - rx packet skb data
63 * Return Value: true if packet duplicate; otherwise false
66 bool ROUTEbRelay(PSDevice pDevice, unsigned char *pbySkbData,
67 unsigned int uDataLen, unsigned int uNodeIndex)
69 PSMgmtObject pMgmt = pDevice->pMgmt;
70 PSTxDesc pHeadTD, pLastTD;
71 unsigned int cbFrameBodySize;
72 unsigned int uMACfragNum;
73 unsigned char byPktType;
74 bool bNeedEncryption = false;
76 PSKeyItem pTransmitKey = NULL;
77 unsigned int cbHeaderSize;
79 unsigned char *pbyBSSID;
81 if (AVAIL_TD(pDevice, TYPE_AC0DMA) <= 0) {
82 DBG_PRT(MSG_LEVEL_DEBUG,
83 KERN_INFO "Relay can't allocate TD1..\n");
87 pHeadTD = pDevice->apCurrTD[TYPE_AC0DMA];
89 pHeadTD->m_td1TD1.byTCR = (TCR_EDP | TCR_STP);
91 memcpy(pDevice->sTxEthHeader.abyDstAddr, pbySkbData, ETH_HLEN);
93 cbFrameBodySize = uDataLen - ETH_HLEN;
95 if (ntohs(pDevice->sTxEthHeader.wType) > ETH_DATA_LEN)
98 if (pDevice->bEncryptionEnable == true) {
99 bNeedEncryption = true;
102 pbyBSSID = pDevice->abyBroadcastAddr;
103 if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID,
104 GROUP_KEY, &pTransmitKey) == false) {
106 DBG_PRT(MSG_LEVEL_DEBUG,
107 KERN_DEBUG "KEY is NULL. [%d]\n",
108 pDevice->pMgmt->eCurrMode);
110 DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG "Get GTK.\n");
114 if (pDevice->bEnableHostWEP) {
115 if (uNodeIndex < MAX_NODE_NUM + 1) {
116 pTransmitKey = &STempKey;
117 pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite;
118 pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex;
119 pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength;
120 pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16;
121 pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0;
122 memcpy(pTransmitKey->abyKey,
123 &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0],
124 pTransmitKey->uKeyLength);
128 uMACfragNum = cbGetFragCount(pDevice, pTransmitKey,
129 cbFrameBodySize, &pDevice->sTxEthHeader);
131 if (uMACfragNum > AVAIL_TD(pDevice, TYPE_AC0DMA))
134 byPktType = pDevice->byPacketType;
136 if (pDevice->bFixRate) {
137 if (pDevice->eCurrentPHYType == PHY_TYPE_11B) {
138 if (pDevice->uConnectionRate >= RATE_11M)
139 pDevice->wCurrentRate = RATE_11M;
141 pDevice->wCurrentRate = pDevice->uConnectionRate;
143 if ((pDevice->eCurrentPHYType == PHY_TYPE_11A) &&
144 (pDevice->uConnectionRate <= RATE_6M)) {
145 pDevice->wCurrentRate = RATE_6M;
147 if (pDevice->uConnectionRate >= RATE_54M)
148 pDevice->wCurrentRate = RATE_54M;
150 pDevice->wCurrentRate = pDevice->uConnectionRate;
154 pDevice->wCurrentRate = pDevice->pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate;
157 if (pDevice->wCurrentRate <= RATE_11M)
158 byPktType = PK_TYPE_11B;
160 vGenerateFIFOHeader(pDevice, byPktType, pDevice->pbyTmpBuff,
161 bNeedEncryption, cbFrameBodySize, TYPE_AC0DMA,
162 pHeadTD, &pDevice->sTxEthHeader, pbySkbData,
163 pTransmitKey, uNodeIndex, &uMACfragNum,
166 if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) {
168 MACbPSWakeup(pDevice->PortOffset);
171 pDevice->bPWBitOn = false;
174 for (ii = 0; ii < uMACfragNum; ii++) {
175 // Poll Transmit the adapter
177 pHeadTD->m_td0TD0.f1Owner = OWNED_BY_NIC;
179 if (ii == (uMACfragNum - 1))
181 pHeadTD = pHeadTD->next;
184 pLastTD->pTDInfo->skb = NULL;
185 pLastTD->pTDInfo->byFlags = 0;
187 pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD;
189 MACvTransmitAC0(pDevice->PortOffset);