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android-kvm / linux / 3abe742339567ac5d63c520834826aacd9b5d5f6 / . / drivers / staging / vt6656 / rxtx.c
blob: 704f4d3639bea4b27cce2a353f9577f7c346d51f [file] [log] [blame]
/*
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* File: rxtx.c
*
* Purpose: handle WMAC/802.3/802.11 rx & tx functions
*
* Author: Lyndon Chen
*
* Date: May 20, 2003
*
* Functions:
* s_vGenerateTxParameter - Generate tx dma required parameter.
* s_vGenerateMACHeader - Translate 802.3 to 802.11 header
* csBeacon_xmit - beacon tx function
* csMgmt_xmit - management tx function
* s_uGetDataDuration - get tx data required duration
* s_uFillDataHead- fulfill tx data duration header
* s_uGetRTSCTSDuration- get rtx/cts required duration
* s_uGetRTSCTSRsvTime- get rts/cts reserved time
* s_uGetTxRsvTime- get frame reserved time
* s_vFillCTSHead- fulfill CTS ctl header
* s_vFillFragParameter- Set fragment ctl parameter.
* s_vFillRTSHead- fulfill RTS ctl header
* s_vFillTxKey- fulfill tx encrypt key
* s_vSWencryption- Software encrypt header
* vDMA0_tx_80211- tx 802.11 frame via dma0
* vGenerateFIFOHeader- Generate tx FIFO ctl header
*
* Revision History:
*
*/
#include "device.h"
#include "rxtx.h"
#include "tether.h"
#include "card.h"
#include "bssdb.h"
#include "mac.h"
#include "michael.h"
#include "tkip.h"
#include "wctl.h"
#include "rf.h"
#include "datarate.h"
#include "usbpipe.h"
#include "iocmd.h"
static int msglevel = MSG_LEVEL_INFO;
static const u16 wTimeStampOff[2][MAX_RATE] = {
{384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, // Long Preamble
{384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, // Short Preamble
};
static const u16 wFB_Opt0[2][5] = {
{RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, // fallback_rate0
{RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, // fallback_rate1
};
static const u16 wFB_Opt1[2][5] = {
{RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, // fallback_rate0
{RATE_6M , RATE_6M, RATE_12M, RATE_12M, RATE_18M}, // fallback_rate1
};
#define RTSDUR_BB 0
#define RTSDUR_BA 1
#define RTSDUR_AA 2
#define CTSDUR_BA 3
#define RTSDUR_BA_F0 4
#define RTSDUR_AA_F0 5
#define RTSDUR_BA_F1 6
#define RTSDUR_AA_F1 7
#define CTSDUR_BA_F0 8
#define CTSDUR_BA_F1 9
#define DATADUR_B 10
#define DATADUR_A 11
#define DATADUR_A_F0 12
#define DATADUR_A_F1 13
static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum,
u8 *pbyDestAddr, u16 wPktLength, u16 wFIFOCtl);
static struct vnt_usb_send_context *s_vGetFreeContext(struct vnt_private *);
static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
u8 byPktType, u16 wCurrentRate, struct vnt_tx_buffer *tx_buffer,
struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
int bNeedACK, struct ethhdr *psEthHeader, bool need_rts);
static void s_vGenerateMACHeader(struct vnt_private *pDevice,
u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader,
int bNeedEncrypt, u16 wFragType, u32 uFragIdx);
static void s_vFillTxKey(struct vnt_private *pDevice,
struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead,
PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen,
struct vnt_mic_hdr *mic_hdr);
static void s_vSWencryption(struct vnt_private *pDevice,
PSKeyItem pTransmitKey, u8 *pbyPayloadHead, u16 wPayloadSize);
static unsigned int s_uGetTxRsvTime(struct vnt_private *pDevice, u8 byPktType,
u32 cbFrameLength, u16 wRate, int bNeedAck);
static __le16 s_uGetRTSCTSRsvTime(struct vnt_private *priv,
u8 rsv_type, u8 pkt_type, u32 frame_length, u16 current_rate);
static u16 s_vFillCTSHead(struct vnt_private *pDevice,
u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength,
int bNeedAck, u16 wCurrentRate, u8 byFBOption);
static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck,
struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption);
static __le16 s_uGetDataDuration(struct vnt_private *pDevice,
u8 byPktType, int bNeedAck);
static __le16 s_uGetRTSCTSDuration(struct vnt_private *pDevice,
u8 byDurType, u32 cbFrameLength, u8 byPktType, u16 wRate,
int bNeedAck, u8 byFBOption);
static struct vnt_usb_send_context
*s_vGetFreeContext(struct vnt_private *priv)
{
struct vnt_usb_send_context *context = NULL;
int ii;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GetFreeContext()\n");
for (ii = 0; ii < priv->cbTD; ii++) {
if (!priv->apTD[ii])
return NULL;
context = priv->apTD[ii];
if (context->in_use == false) {
context->in_use = true;
memset(context->data, 0,
MAX_TOTAL_SIZE_WITH_ALL_HEADERS);
return context;
}
}
if (ii == priv->cbTD)
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No Free Tx Context\n");
return NULL;
}
static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum,
u8 *pbyDestAddr, u16 wPktLength, u16 wFIFOCtl)
{
struct net_device_stats *stats = &pDevice->stats;
struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info;
pkt_info[byPktNum].fifo_ctl = wFIFOCtl;
memcpy(pkt_info[byPktNum].dest_addr, pbyDestAddr, ETH_ALEN);
stats->tx_bytes += wPktLength;
}
static void s_vFillTxKey(struct vnt_private *pDevice,
struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead,
PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen,
struct vnt_mic_hdr *mic_hdr)
{
u8 *pbyBuf = (u8 *)&fifo_head->adwTxKey[0];
__le32 *pdwIV = (__le32 *)pbyIVHead;
__le32 *pdwExtIV = (__le32 *)((u8 *)pbyIVHead + 4);
struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyHdrBuf;
__le32 rev_iv_counter;
/* Fill TXKEY */
if (pTransmitKey == NULL)
return;
rev_iv_counter = cpu_to_le32(pDevice->dwIVCounter);
*pdwIV = cpu_to_le32(pDevice->dwIVCounter);
pDevice->byKeyIndex = pTransmitKey->dwKeyIndex & 0xf;
switch (pTransmitKey->byCipherSuite) {
case KEY_CTL_WEP:
if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN) {
memcpy(pDevice->abyPRNG, (u8 *)&rev_iv_counter, 3);
memcpy(pDevice->abyPRNG + 3, pTransmitKey->abyKey,
pTransmitKey->uKeyLength);
} else {
memcpy(pbyBuf, (u8 *)&rev_iv_counter, 3);
memcpy(pbyBuf + 3, pTransmitKey->abyKey,
pTransmitKey->uKeyLength);
if (pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) {
memcpy(pbyBuf+8, (u8 *)&rev_iv_counter, 3);
memcpy(pbyBuf+11, pTransmitKey->abyKey,
pTransmitKey->uKeyLength);
}
memcpy(pDevice->abyPRNG, pbyBuf, 16);
}
/* Append IV after Mac Header */
*pdwIV &= cpu_to_le32(WEP_IV_MASK);
*pdwIV |= cpu_to_le32((u32)pDevice->byKeyIndex << 30);
pDevice->dwIVCounter++;
if (pDevice->dwIVCounter > WEP_IV_MASK)
pDevice->dwIVCounter = 0;
break;
case KEY_CTL_TKIP:
pTransmitKey->wTSC15_0++;
if (pTransmitKey->wTSC15_0 == 0)
pTransmitKey->dwTSC47_16++;
TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr,
pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16,
pDevice->abyPRNG);
memcpy(pbyBuf, pDevice->abyPRNG, 16);
/* Make IV */
memcpy(pdwIV, pDevice->abyPRNG, 3);
*(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) &
0xc0) | 0x20);
/* Append IV&ExtIV after Mac Header */
*pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
"vFillTxKey()---- pdwExtIV: %x\n", *pdwExtIV);
break;
case KEY_CTL_CCMP:
pTransmitKey->wTSC15_0++;
if (pTransmitKey->wTSC15_0 == 0)
pTransmitKey->dwTSC47_16++;
memcpy(pbyBuf, pTransmitKey->abyKey, 16);
/* Make IV */
*pdwIV = 0;
*(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) &
0xc0) | 0x20);
*pdwIV |= cpu_to_le32((u32)(pTransmitKey->wTSC15_0));
/* Append IV&ExtIV after Mac Header */
*pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16);
if (!mic_hdr)
return;
/* MICHDR0 */
mic_hdr->id = 0x59;
mic_hdr->payload_len = cpu_to_be16(wPayloadLen);
memcpy(mic_hdr->mic_addr2, pMACHeader->addr2, ETH_ALEN);
mic_hdr->tsc_47_16 = cpu_to_be32(pTransmitKey->dwTSC47_16);
mic_hdr->tsc_15_0 = cpu_to_be16(pTransmitKey->wTSC15_0);
/* MICHDR1 */
if (ieee80211_has_a4(pMACHeader->frame_control))
mic_hdr->hlen = cpu_to_be16(28);
else
mic_hdr->hlen = cpu_to_be16(22);
memcpy(mic_hdr->addr1, pMACHeader->addr1, ETH_ALEN);
memcpy(mic_hdr->addr2, pMACHeader->addr2, ETH_ALEN);
/* MICHDR2 */
memcpy(mic_hdr->addr3, pMACHeader->addr3, ETH_ALEN);
mic_hdr->frame_control = cpu_to_le16(
le16_to_cpu(pMACHeader->frame_control) & 0xc78f);
mic_hdr->seq_ctrl = cpu_to_le16(
le16_to_cpu(pMACHeader->seq_ctrl) & 0xf);
if (ieee80211_has_a4(pMACHeader->frame_control))
memcpy(mic_hdr->addr4, pMACHeader->addr4, ETH_ALEN);
}
}
static void s_vSWencryption(struct vnt_private *pDevice,
PSKeyItem pTransmitKey, u8 *pbyPayloadHead, u16 wPayloadSize)
{
u32 cbICVlen = 4;
u32 dwICV = 0xffffffff;
u32 *pdwICV;
if (pTransmitKey == NULL)
return;
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
//=======================================================================
// Append ICV after payload
dwICV = ether_crc_le(wPayloadSize, pbyPayloadHead);
pdwICV = (u32 *)(pbyPayloadHead + wPayloadSize);
// finally, we must invert dwCRC to get the correct answer
*pdwICV = cpu_to_le32(~dwICV);
// RC4 encryption
rc4_init(&pDevice->SBox, pDevice->abyPRNG, pTransmitKey->uKeyLength + 3);
rc4_encrypt(&pDevice->SBox, pbyPayloadHead, pbyPayloadHead, wPayloadSize+cbICVlen);
//=======================================================================
} else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
//=======================================================================
//Append ICV after payload
dwICV = ether_crc_le(wPayloadSize, pbyPayloadHead);
pdwICV = (u32 *)(pbyPayloadHead + wPayloadSize);
// finally, we must invert dwCRC to get the correct answer
*pdwICV = cpu_to_le32(~dwICV);
// RC4 encryption
rc4_init(&pDevice->SBox, pDevice->abyPRNG, TKIP_KEY_LEN);
rc4_encrypt(&pDevice->SBox, pbyPayloadHead, pbyPayloadHead, wPayloadSize+cbICVlen);
//=======================================================================
}
}
static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate)
{
return cpu_to_le16(wTimeStampOff[priv->byPreambleType % 2]
[rate % MAX_RATE]);
}
/*byPktType : PK_TYPE_11A 0
PK_TYPE_11B 1
PK_TYPE_11GB 2
PK_TYPE_11GA 3
*/
static u32 s_uGetTxRsvTime(struct vnt_private *priv, u8 pkt_type,
u32 frame_length, u16 rate, int need_ack)
{
u32 data_time, ack_time;
data_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
frame_length, rate);
if (pkt_type == PK_TYPE_11B)
ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, 14,
(u16)priv->byTopCCKBasicRate);
else
ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type, 14,
(u16)priv->byTopOFDMBasicRate);
if (need_ack)
return data_time + priv->uSIFS + ack_time;
return data_time;
}
static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
u32 frame_length, u16 rate, int need_ack)
{
return cpu_to_le16((u16)s_uGetTxRsvTime(priv, pkt_type,
frame_length, rate, need_ack));
}
//byFreqType: 0=>5GHZ 1=>2.4GHZ
static __le16 s_uGetRTSCTSRsvTime(struct vnt_private *priv,
u8 rsv_type, u8 pkt_type, u32 frame_length, u16 current_rate)
{
u32 rrv_time, rts_time, cts_time, ack_time, data_time;
rrv_time = rts_time = cts_time = ack_time = data_time = 0;
data_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
frame_length, current_rate);
if (rsv_type == 0) {
rts_time = BBuGetFrameTime(priv->byPreambleType,
pkt_type, 20, priv->byTopCCKBasicRate);
cts_time = ack_time = BBuGetFrameTime(priv->byPreambleType,
pkt_type, 14, priv->byTopCCKBasicRate);
} else if (rsv_type == 1) {
rts_time = BBuGetFrameTime(priv->byPreambleType,
pkt_type, 20, priv->byTopCCKBasicRate);
cts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
14, priv->byTopCCKBasicRate);
ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
14, priv->byTopOFDMBasicRate);
} else if (rsv_type == 2) {
rts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
20, priv->byTopOFDMBasicRate);
cts_time = ack_time = BBuGetFrameTime(priv->byPreambleType,
pkt_type, 14, priv->byTopOFDMBasicRate);
} else if (rsv_type == 3) {
cts_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
14, priv->byTopCCKBasicRate);
ack_time = BBuGetFrameTime(priv->byPreambleType, pkt_type,
14, priv->byTopOFDMBasicRate);
rrv_time = cts_time + ack_time + data_time + 2 * priv->uSIFS;
return cpu_to_le16((u16)rrv_time);
}
rrv_time = rts_time + cts_time + ack_time + data_time + 3 * priv->uSIFS;
return cpu_to_le16((u16)rrv_time);
}
//byFreqType 0: 5GHz, 1:2.4Ghz
static __le16 s_uGetDataDuration(struct vnt_private *pDevice,
u8 byPktType, int bNeedAck)
{
u32 uAckTime = 0;
if (bNeedAck) {
if (byPktType == PK_TYPE_11B)
uAckTime = BBuGetFrameTime(pDevice->byPreambleType,
byPktType, 14, pDevice->byTopCCKBasicRate);
else
uAckTime = BBuGetFrameTime(pDevice->byPreambleType,
byPktType, 14, pDevice->byTopOFDMBasicRate);
return cpu_to_le16((u16)(pDevice->uSIFS + uAckTime));
}
return 0;
}
//byFreqType: 0=>5GHZ 1=>2.4GHZ
static __le16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
u32 cbFrameLength, u8 byPktType, u16 wRate, int bNeedAck,
u8 byFBOption)
{
u32 uCTSTime = 0, uDurTime = 0;
switch (byDurType) {
case RTSDUR_BB:
case RTSDUR_BA:
case RTSDUR_BA_F0:
case RTSDUR_BA_F1:
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType,
14, pDevice->byTopCCKBasicRate);
uDurTime = uCTSTime + 2 * pDevice->uSIFS +
s_uGetTxRsvTime(pDevice, byPktType,
cbFrameLength, wRate, bNeedAck);
break;
case RTSDUR_AA:
case RTSDUR_AA_F0:
case RTSDUR_AA_F1:
uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType,
14, pDevice->byTopOFDMBasicRate);
uDurTime = uCTSTime + 2 * pDevice->uSIFS +
s_uGetTxRsvTime(pDevice, byPktType,
cbFrameLength, wRate, bNeedAck);
break;
case CTSDUR_BA:
case CTSDUR_BA_F0:
case CTSDUR_BA_F1:
uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
byPktType, cbFrameLength, wRate, bNeedAck);
break;
default:
break;
}
return cpu_to_le16((u16)uDurTime);
}
static u16 vnt_rxtx_datahead_g(struct vnt_private *priv, u8 pkt_type, u16 rate,
struct vnt_tx_datahead_g *buf, u32 frame_len, int need_ack)
{
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
/* Get Duration and TimeStamp */
buf->duration_a = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->duration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack);
buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate);
buf->time_stamp_off_b = vnt_time_stamp_off(priv,
priv->byTopCCKBasicRate);
return le16_to_cpu(buf->duration_a);
}
static u16 vnt_rxtx_datahead_g_fb(struct vnt_private *priv, u8 pkt_type,
u16 rate, struct vnt_tx_datahead_g_fb *buf,
u32 frame_len, int need_ack)
{
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
/* Get Duration and TimeStamp */
buf->duration_a = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->duration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack);
buf->duration_a_f0 = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->duration_a_f1 = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate);
buf->time_stamp_off_b = vnt_time_stamp_off(priv,
priv->byTopCCKBasicRate);
return le16_to_cpu(buf->duration_a);
}
static u16 vnt_rxtx_datahead_a_fb(struct vnt_private *priv, u8 pkt_type,
u16 rate, struct vnt_tx_datahead_a_fb *buf,
u32 frame_len, int need_ack)
{
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
/* Get Duration and TimeStampOff */
buf->duration = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->duration_f0 = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->duration_f1 = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->time_stamp_off = vnt_time_stamp_off(priv, rate);
return le16_to_cpu(buf->duration);
}
static u16 vnt_rxtx_datahead_ab(struct vnt_private *priv, u8 pkt_type,
u16 rate, struct vnt_tx_datahead_ab *buf,
u32 frame_len, int need_ack)
{
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->ab);
/* Get Duration and TimeStampOff */
buf->duration = s_uGetDataDuration(priv, pkt_type, need_ack);
buf->time_stamp_off = vnt_time_stamp_off(priv, rate);
return le16_to_cpu(buf->duration);
}
static int vnt_fill_ieee80211_rts(struct vnt_private *priv,
struct ieee80211_rts *rts, struct ethhdr *eth_hdr,
__le16 duration)
{
rts->duration = duration;
rts->frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
if (priv->op_mode == NL80211_IFTYPE_ADHOC ||
priv->op_mode == NL80211_IFTYPE_AP)
memcpy(rts->ra, eth_hdr->h_dest, ETH_ALEN);
else
memcpy(rts->ra, priv->abyBSSID, ETH_ALEN);
if (priv->op_mode == NL80211_IFTYPE_AP)
memcpy(rts->ta, priv->abyBSSID, ETH_ALEN);
else
memcpy(rts->ta, eth_hdr->h_source, ETH_ALEN);
return 0;
}
static u16 vnt_rxtx_rts_g_head(struct vnt_private *priv,
struct vnt_rts_g *buf, struct ethhdr *eth_hdr,
u8 pkt_type, u32 frame_len, int need_ack,
u16 current_rate, u8 fb_option)
{
u16 rts_frame_len = 20;
BBvCalculateParameter(priv, rts_frame_len, priv->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
BBvCalculateParameter(priv, rts_frame_len,
priv->byTopOFDMBasicRate, pkt_type, &buf->a);
buf->duration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len,
PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option);
buf->duration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
buf->duration_ba = s_uGetRTSCTSDuration(priv, RTSDUR_BA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration_aa);
return vnt_rxtx_datahead_g(priv, pkt_type, current_rate,
&buf->data_head, frame_len, need_ack);
}
static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
struct vnt_rts_g_fb *buf, struct ethhdr *eth_hdr,
u8 pkt_type, u32 frame_len, int need_ack,
u16 current_rate, u8 fb_option)
{
u16 rts_frame_len = 20;
BBvCalculateParameter(priv, rts_frame_len, priv->byTopCCKBasicRate,
PK_TYPE_11B, &buf->b);
BBvCalculateParameter(priv, rts_frame_len,
priv->byTopOFDMBasicRate, pkt_type, &buf->a);
buf->duration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len,
PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option);
buf->duration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
buf->duration_ba = s_uGetRTSCTSDuration(priv, RTSDUR_BA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
buf->rts_duration_ba_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F0,
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->rts_duration_aa_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->rts_duration_ba_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F1,
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
buf->rts_duration_aa_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration_aa);
return vnt_rxtx_datahead_g_fb(priv, pkt_type, current_rate,
&buf->data_head, frame_len, need_ack);
}
static u16 vnt_rxtx_rts_ab_head(struct vnt_private *priv,
struct vnt_rts_ab *buf, struct ethhdr *eth_hdr,
u8 pkt_type, u32 frame_len, int need_ack,
u16 current_rate, u8 fb_option)
{
u16 rts_frame_len = 20;
BBvCalculateParameter(priv, rts_frame_len,
priv->byTopOFDMBasicRate, pkt_type, &buf->ab);
buf->duration = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration);
return vnt_rxtx_datahead_ab(priv, pkt_type, current_rate,
&buf->data_head, frame_len, need_ack);
}
static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
struct vnt_rts_a_fb *buf, struct ethhdr *eth_hdr,
u8 pkt_type, u32 frame_len, int need_ack,
u16 current_rate, u8 fb_option)
{
u16 rts_frame_len = 20;
BBvCalculateParameter(priv, rts_frame_len,
priv->byTopOFDMBasicRate, pkt_type, &buf->a);
buf->duration = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len,
pkt_type, current_rate, need_ack, fb_option);
buf->rts_duration_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
buf->rts_duration_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->duration);
return vnt_rxtx_datahead_a_fb(priv, pkt_type, current_rate,
&buf->data_head, frame_len, need_ack);
}
static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck,
struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption)
{
if (!head)
return 0;
/* Note: So far RTSHead doesn't appear in ATIM
* & Beacom DMA, so we don't need to take them
* into account.
* Otherwise, we need to modified codes for them.
*/
switch (byPktType) {
case PK_TYPE_11GB:
case PK_TYPE_11GA:
if (byFBOption == AUTO_FB_NONE)
return vnt_rxtx_rts_g_head(pDevice, &head->rts_g,
psEthHeader, byPktType, cbFrameLength,
bNeedAck, wCurrentRate, byFBOption);
else
return vnt_rxtx_rts_g_fb_head(pDevice, &head->rts_g_fb,
psEthHeader, byPktType, cbFrameLength,
bNeedAck, wCurrentRate, byFBOption);
break;
case PK_TYPE_11A:
if (byFBOption) {
return vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb,
psEthHeader, byPktType, cbFrameLength,
bNeedAck, wCurrentRate, byFBOption);
break;
}
case PK_TYPE_11B:
return vnt_rxtx_rts_ab_head(pDevice, &head->rts_ab,
psEthHeader, byPktType, cbFrameLength,
bNeedAck, wCurrentRate, byFBOption);
}
return 0;
}
static u16 s_vFillCTSHead(struct vnt_private *pDevice,
u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength,
int bNeedAck, u16 wCurrentRate, u8 byFBOption)
{
u32 uCTSFrameLen = 14;
if (!head)
return 0;
if (byFBOption != AUTO_FB_NONE) {
/* Auto Fall back */
struct vnt_cts_fb *pBuf = &head->cts_g_fb;
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(pDevice, uCTSFrameLen,
pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b);
pBuf->duration_ba = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
cbFrameLength, byPktType,
wCurrentRate, bNeedAck, byFBOption);
/* Get CTSDuration_ba_f0 */
pBuf->cts_duration_ba_f0 = s_uGetRTSCTSDuration(pDevice,
CTSDUR_BA_F0, cbFrameLength, byPktType,
pDevice->tx_rate_fb0, bNeedAck, byFBOption);
/* Get CTSDuration_ba_f1 */
pBuf->cts_duration_ba_f1 = s_uGetRTSCTSDuration(pDevice,
CTSDUR_BA_F1, cbFrameLength, byPktType,
pDevice->tx_rate_fb1, bNeedAck, byFBOption);
/* Get CTS Frame body */
pBuf->data.duration = pBuf->duration_ba;
pBuf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
return vnt_rxtx_datahead_g_fb(pDevice, byPktType, wCurrentRate,
&pBuf->data_head, cbFrameLength, bNeedAck);
} else {
struct vnt_cts *pBuf = &head->cts_g;
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(pDevice, uCTSFrameLen,
pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b);
/* Get CTSDuration_ba */
pBuf->duration_ba = s_uGetRTSCTSDuration(pDevice,
CTSDUR_BA, cbFrameLength, byPktType,
wCurrentRate, bNeedAck, byFBOption);
/*Get CTS Frame body*/
pBuf->data.duration = pBuf->duration_ba;
pBuf->data.frame_control =
cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
return vnt_rxtx_datahead_g(pDevice, byPktType, wCurrentRate,
&pBuf->data_head, cbFrameLength, bNeedAck);
}
return 0;
}
/*+
*
* Description:
* Generate FIFO control for MAC & Baseband controller
*
* Parameters:
* In:
* pDevice - Pointer to adpater
* pTxDataHead - Transmit Data Buffer
* pTxBufHead - pTxBufHead
* pvRrvTime - pvRrvTime
* pvRTS - RTS Buffer
* pCTS - CTS Buffer
* cbFrameSize - Transmit Data Length (Hdr+Payload+FCS)
* bNeedACK - If need ACK
* Out:
* none
*
* Return Value: none
*
-*/
static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
u8 byPktType, u16 wCurrentRate, struct vnt_tx_buffer *tx_buffer,
struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
int bNeedACK, struct ethhdr *psEthHeader, bool need_rts)
{
struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head;
union vnt_tx_data_head *head = NULL;
u16 wFifoCtl;
u8 byFBOption = AUTO_FB_NONE;
pFifoHead->current_rate = cpu_to_le16(wCurrentRate);
wFifoCtl = pFifoHead->wFIFOCtl;
if (wFifoCtl & FIFOCTL_AUTO_FB_0)
byFBOption = AUTO_FB_0;
else if (wFifoCtl & FIFOCTL_AUTO_FB_1)
byFBOption = AUTO_FB_1;
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
if (need_rts) {
struct vnt_rrv_time_rts *pBuf =
&tx_buffer->tx_head.tx_rts.rts;
pBuf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2,
byPktType, cbFrameSize, wCurrentRate);
pBuf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1,
byPktType, cbFrameSize, wCurrentRate);
pBuf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0,
byPktType, cbFrameSize, wCurrentRate);
pBuf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice,
byPktType, cbFrameSize, wCurrentRate, bNeedACK);
pBuf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice,
PK_TYPE_11B, cbFrameSize,
pDevice->byTopCCKBasicRate, bNeedACK);
if (need_mic) {
*mic_hdr = &tx_buffer->
tx_head.tx_rts.tx.mic.hdr;
head = &tx_buffer->tx_head.tx_rts.tx.mic.head;
} else {
head = &tx_buffer->tx_head.tx_rts.tx.head;
}
/* Fill RTS */
return s_vFillRTSHead(pDevice, byPktType, head,
cbFrameSize, bNeedACK, psEthHeader,
wCurrentRate, byFBOption);
} else {
struct vnt_rrv_time_cts *pBuf = &tx_buffer->
tx_head.tx_cts.cts;
pBuf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice,
byPktType, cbFrameSize, wCurrentRate, bNeedACK);
pBuf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice,
PK_TYPE_11B, cbFrameSize,
pDevice->byTopCCKBasicRate, bNeedACK);
pBuf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3,
byPktType, cbFrameSize, wCurrentRate);
if (need_mic) {
*mic_hdr = &tx_buffer->
tx_head.tx_cts.tx.mic.hdr;
head = &tx_buffer->tx_head.tx_cts.tx.mic.head;
} else {
head = &tx_buffer->tx_head.tx_cts.tx.head;
}
/* Fill CTS */
return s_vFillCTSHead(pDevice, byPktType,
head, cbFrameSize, bNeedACK, wCurrentRate,
byFBOption);
}
} else if (byPktType == PK_TYPE_11A) {
if (need_mic) {
*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
} else {
head = &tx_buffer->tx_head.tx_ab.tx.head;
}
if (need_rts) {
struct vnt_rrv_time_ab *pBuf = &tx_buffer->
tx_head.tx_ab.ab;
pBuf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2,
byPktType, cbFrameSize, wCurrentRate);
pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice,
byPktType, cbFrameSize, wCurrentRate, bNeedACK);
/* Fill RTS */
return s_vFillRTSHead(pDevice, byPktType, head,
cbFrameSize, bNeedACK, psEthHeader,
wCurrentRate, byFBOption);
} else {
struct vnt_rrv_time_ab *pBuf = &tx_buffer->
tx_head.tx_ab.ab;
pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice,
PK_TYPE_11A, cbFrameSize,
wCurrentRate, bNeedACK);
return vnt_rxtx_datahead_a_fb(pDevice, byPktType,
wCurrentRate, &head->data_head_a_fb,
cbFrameSize, bNeedACK);
}
} else if (byPktType == PK_TYPE_11B) {
if (need_mic) {
*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
} else {
head = &tx_buffer->tx_head.tx_ab.tx.head;
}
if (need_rts) {
struct vnt_rrv_time_ab *pBuf = &tx_buffer->
tx_head.tx_ab.ab;
pBuf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0,
byPktType, cbFrameSize, wCurrentRate);
pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice,
PK_TYPE_11B, cbFrameSize, wCurrentRate,
bNeedACK);
/* Fill RTS */
return s_vFillRTSHead(pDevice, byPktType, head,
cbFrameSize,
bNeedACK, psEthHeader, wCurrentRate, byFBOption);
} else {
struct vnt_rrv_time_ab *pBuf = &tx_buffer->
tx_head.tx_ab.ab;
pBuf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice,
PK_TYPE_11B, cbFrameSize,
wCurrentRate, bNeedACK);
return vnt_rxtx_datahead_ab(pDevice, byPktType,
wCurrentRate, &head->data_head_ab,
cbFrameSize, bNeedACK);
}
}
return 0;
}
/*
u8 * pbyBuffer,//point to pTxBufHead
u16 wFragType,//00:Non-Frag, 01:Start, 02:Mid, 03:Last
unsigned int cbFragmentSize,//Hdr+payoad+FCS
*/
static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
struct vnt_tx_buffer *tx_buffer, int bNeedEncryption,
u32 uSkbPacketLen, struct ethhdr *psEthHeader,
u8 *pPacket, PSKeyItem pTransmitKey, u32 uNodeIndex, u16 wCurrentRate,
u32 *pcbHeaderLen, u32 *pcbTotalLen)
{
struct vnt_tx_fifo_head *pTxBufHead = &tx_buffer->fifo_head;
u32 cbFrameSize, cbFrameBodySize;
u32 cb802_1_H_len;
u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbMACHdLen = 0;
u32 cbFCSlen = 4, cbMICHDR = 0;
int bNeedACK;
bool bRTS = false;
u8 *pbyType, *pbyMacHdr, *pbyIVHead, *pbyPayloadHead, *pbyTxBufferAddr;
u8 abySNAP_RFC1042[ETH_ALEN] = {0xAA, 0xAA, 0x03, 0x00, 0x00, 0x00};
u8 abySNAP_Bridgetunnel[ETH_ALEN]
= {0xAA, 0xAA, 0x03, 0x00, 0x00, 0xF8};
u32 uDuration;
u32 cbHeaderLength = 0, uPadding = 0;
struct vnt_mic_hdr *pMICHDR;
u8 byFBOption = AUTO_FB_NONE, byFragType;
u16 wTxBufSize;
u32 dwMICKey0, dwMICKey1, dwMIC_Priority;
u32 *pdwMIC_L, *pdwMIC_R;
int bSoftWEP = false;
pMICHDR = NULL;
if (bNeedEncryption && pTransmitKey->pvKeyTable) {
if (((PSKeyTable)pTransmitKey->pvKeyTable)->bSoftWEP == true)
bSoftWEP = true; /* WEP 256 */
}
/* Get pkt type */
if (ntohs(psEthHeader->h_proto) > ETH_DATA_LEN)
cb802_1_H_len = 8;
else
cb802_1_H_len = 0;
cbFrameBodySize = uSkbPacketLen - ETH_HLEN + cb802_1_H_len;
//Set packet type
pTxBufHead->wFIFOCtl |= (u16)(byPktType<<8);
if (pDevice->op_mode == NL80211_IFTYPE_ADHOC ||
pDevice->op_mode == NL80211_IFTYPE_AP) {
if (is_multicast_ether_addr(psEthHeader->h_dest)) {
bNeedACK = false;
pTxBufHead->wFIFOCtl =
pTxBufHead->wFIFOCtl & (~FIFOCTL_NEEDACK);
} else {
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
}
} else {
/* MSDUs in Infra mode always need ACK */
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
}
pTxBufHead->time_stamp = cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
//Set FRAGCTL_MACHDCNT
cbMACHdLen = WLAN_HDR_ADDR3_LEN;
pTxBufHead->wFragCtl |= (u16)(cbMACHdLen << 10);
//Set FIFOCTL_GrpAckPolicy
if (pDevice->bGrpAckPolicy == true) {//0000 0100 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
}
/* Set Auto Fallback Ctl */
if (wCurrentRate >= RATE_18M) {
if (pDevice->byAutoFBCtrl == AUTO_FB_0) {
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0;
pDevice->tx_rate_fb0 =
wFB_Opt0[FB_RATE0][wCurrentRate - RATE_18M];
pDevice->tx_rate_fb1 =
wFB_Opt0[FB_RATE1][wCurrentRate - RATE_18M];
byFBOption = AUTO_FB_0;
} else if (pDevice->byAutoFBCtrl == AUTO_FB_1) {
pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1;
pDevice->tx_rate_fb0 =
wFB_Opt1[FB_RATE0][wCurrentRate - RATE_18M];
pDevice->tx_rate_fb1 =
wFB_Opt1[FB_RATE1][wCurrentRate - RATE_18M];
byFBOption = AUTO_FB_1;
}
}
if (bSoftWEP != true) {
if ((bNeedEncryption) && (pTransmitKey != NULL)) { //WEP enabled
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { //WEP40 or WEP104
pTxBufHead->wFragCtl |= FRAGCTL_LEGACY;
}
if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Tx Set wFragCtl == FRAGCTL_TKIP\n");
pTxBufHead->wFragCtl |= FRAGCTL_TKIP;
}
else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { //CCMP
pTxBufHead->wFragCtl |= FRAGCTL_AES;
}
}
}
if ((bNeedEncryption) && (pTransmitKey != NULL)) {
if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) {
cbIVlen = 4;
cbICVlen = 4;
}
else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
}
if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
cbMICHDR = sizeof(struct vnt_mic_hdr);
}
if (bSoftWEP == false) {
//MAC Header should be padding 0 to DW alignment.
uPadding = 4 - (cbMACHdLen%4);
uPadding %= 4;
}
}
cbFrameSize = cbMACHdLen + cbIVlen + (cbFrameBodySize + cbMIClen) + cbICVlen + cbFCSlen;
if ( (bNeedACK == false) ||(cbFrameSize < pDevice->wRTSThreshold) ) {
bRTS = false;
} else {
bRTS = true;
pTxBufHead->wFIFOCtl |= (FIFOCTL_RTS | FIFOCTL_LRETRY);
}
pbyTxBufferAddr = (u8 *) &(pTxBufHead->adwTxKey[0]);
wTxBufSize = sizeof(struct vnt_tx_fifo_head);
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
if (byFBOption == AUTO_FB_NONE) {
if (bRTS == true) {//RTS_need
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g);
}
else { //RTS_needless
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts);
}
} else {
// Auto Fall Back
if (bRTS == true) {//RTS_need
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
cbMICHDR + sizeof(struct vnt_rts_g_fb);
}
else if (bRTS == false) { //RTS_needless
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
cbMICHDR + sizeof(struct vnt_cts_fb);
}
} // Auto Fall Back
}
else {//802.11a/b packet
if (byFBOption == AUTO_FB_NONE) {
if (bRTS == true) {//RTS_need
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_rts_ab);
}
else if (bRTS == false) { //RTS_needless, no MICHDR
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
}
} else {
// Auto Fall Back
if (bRTS == true) {//RTS_need
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_rts_a_fb);
}
else if (bRTS == false) { //RTS_needless
cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
}
} // Auto Fall Back
}
pbyMacHdr = (u8 *)(pbyTxBufferAddr + cbHeaderLength);
pbyIVHead = (u8 *)(pbyMacHdr + cbMACHdLen + uPadding);
pbyPayloadHead = (u8 *)(pbyMacHdr + cbMACHdLen + uPadding + cbIVlen);
//=========================
// No Fragmentation
//=========================
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"No Fragmentation...\n");
byFragType = FRAGCTL_NONFRAG;
//pTxBufHead = (PSTxBufHead) &(pTxBufHead->adwTxKey[0]);
/* Fill FIFO, RrvTime, RTS and CTS */
uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
tx_buffer, &pMICHDR, cbMICHDR,
cbFrameSize, bNeedACK, psEthHeader, bRTS);
// Generate TX MAC Header
s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption,
byFragType, 0);
if (bNeedEncryption == true) {
//Fill TXKEY
s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey,
pbyMacHdr, (u16)cbFrameBodySize, pMICHDR);
}
/* 802.1H */
if (ntohs(psEthHeader->h_proto) > ETH_DATA_LEN) {
if ((psEthHeader->h_proto == cpu_to_be16(ETH_P_IPX)) ||
(psEthHeader->h_proto == cpu_to_le16(0xF380)))
memcpy((u8 *) (pbyPayloadHead),
abySNAP_Bridgetunnel, 6);
else
memcpy((u8 *) (pbyPayloadHead), &abySNAP_RFC1042[0], 6);
pbyType = (u8 *) (pbyPayloadHead + 6);
memcpy(pbyType, &(psEthHeader->h_proto), sizeof(u16));
}
if (pPacket != NULL) {
// Copy the Packet into a tx Buffer
memcpy((pbyPayloadHead + cb802_1_H_len),
(pPacket + ETH_HLEN),
uSkbPacketLen - ETH_HLEN
);
} else {
// while bRelayPacketSend psEthHeader is point to header+payload
memcpy((pbyPayloadHead + cb802_1_H_len), ((u8 *)psEthHeader) + ETH_HLEN, uSkbPacketLen - ETH_HLEN);
}
if ((bNeedEncryption == true) && (pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) {
///////////////////////////////////////////////////////////////////
if (pDevice->vnt_mgmt.eAuthenMode == WMAC_AUTH_WPANONE) {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]);
}
else if ((pTransmitKey->dwKeyIndex & AUTHENTICATOR_KEY) != 0) {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]);
}
else {
dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[24]);
dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[28]);
}
// DO Software Michael
MIC_vInit(dwMICKey0, dwMICKey1);
MIC_vAppend((u8 *)&(psEthHeader->h_dest[0]), 12);
dwMIC_Priority = 0;
MIC_vAppend((u8 *)&dwMIC_Priority, 4);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC KEY: %X, %X\n",
dwMICKey0, dwMICKey1);
///////////////////////////////////////////////////////////////////
//DBG_PRN_GRP12(("Length:%d, %d\n", cbFrameBodySize, uFromHDtoPLDLength));
//for (ii = 0; ii < cbFrameBodySize; ii++) {
// DBG_PRN_GRP12(("%02x ", *((u8 *)((pbyPayloadHead + cb802_1_H_len) + ii))));
//}
//DBG_PRN_GRP12(("\n\n\n"));
MIC_vAppend(pbyPayloadHead, cbFrameBodySize);
pdwMIC_L = (u32 *)(pbyPayloadHead + cbFrameBodySize);
pdwMIC_R = (u32 *)(pbyPayloadHead + cbFrameBodySize + 4);
MIC_vGetMIC(pdwMIC_L, pdwMIC_R);
MIC_vUnInit();
if (pDevice->bTxMICFail == true) {
*pdwMIC_L = 0;
*pdwMIC_R = 0;
pDevice->bTxMICFail = false;
}
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"uLength: %d, %d\n", uLength, cbFrameBodySize);
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"cbReqCount:%d, %d, %d, %d\n", cbReqCount, cbHeaderLength, uPadding, cbIVlen);
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC:%lX, %lX\n", *pdwMIC_L, *pdwMIC_R);
}
if (bSoftWEP == true) {
s_vSWencryption(pDevice, pTransmitKey, (pbyPayloadHead), (u16)(cbFrameBodySize + cbMIClen));
} else if ( ((pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) && (bNeedEncryption == true)) ||
((pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) && (bNeedEncryption == true)) ||
((pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) && (bNeedEncryption == true)) ) {
cbFrameSize -= cbICVlen;
}
cbFrameSize -= cbFCSlen;
*pcbHeaderLen = cbHeaderLength;
*pcbTotalLen = cbHeaderLength + cbFrameSize ;
//Set FragCtl in TxBufferHead
pTxBufHead->wFragCtl |= (u16)byFragType;
return true;
}
/*+
*
* Description:
* Translate 802.3 to 802.11 header
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* dwTxBufferAddr - Transmit Buffer
* pPacket - Packet from upper layer
* cbPacketSize - Transmit Data Length
* Out:
* pcbHeadSize - Header size of MAC&Baseband control and 802.11 Header
* pcbAppendPayload - size of append payload for 802.1H translation
*
* Return Value: none
*
-*/
static void s_vGenerateMACHeader(struct vnt_private *pDevice,
u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader,
int bNeedEncrypt, u16 wFragType, u32 uFragIdx)
{
struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyBufferAddr;
pMACHeader->frame_control = TYPE_802_11_DATA;
if (pDevice->op_mode == NL80211_IFTYPE_AP) {
memcpy(&(pMACHeader->addr1[0]),
&(psEthHeader->h_dest[0]),
ETH_ALEN);
memcpy(&(pMACHeader->addr2[0]), &(pDevice->abyBSSID[0]), ETH_ALEN);
memcpy(&(pMACHeader->addr3[0]),
&(psEthHeader->h_source[0]),
ETH_ALEN);
pMACHeader->frame_control |= FC_FROMDS;
} else {
if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) {
memcpy(&(pMACHeader->addr1[0]),
&(psEthHeader->h_dest[0]),
ETH_ALEN);
memcpy(&(pMACHeader->addr2[0]),
&(psEthHeader->h_source[0]),
ETH_ALEN);
memcpy(&(pMACHeader->addr3[0]),
&(pDevice->abyBSSID[0]),
ETH_ALEN);
} else {
memcpy(&(pMACHeader->addr3[0]),
&(psEthHeader->h_dest[0]),
ETH_ALEN);
memcpy(&(pMACHeader->addr2[0]),
&(psEthHeader->h_source[0]),
ETH_ALEN);
memcpy(&(pMACHeader->addr1[0]),
&(pDevice->abyBSSID[0]),
ETH_ALEN);
pMACHeader->frame_control |= FC_TODS;
}
}
if (bNeedEncrypt)
pMACHeader->frame_control |= cpu_to_le16((u16)WLAN_SET_FC_ISWEP(1));
pMACHeader->duration_id = cpu_to_le16(wDuration);
pMACHeader->seq_ctrl = cpu_to_le16(pDevice->wSeqCounter << 4);
//Set FragNumber in Sequence Control
pMACHeader->seq_ctrl |= cpu_to_le16((u16)uFragIdx);
if ((wFragType == FRAGCTL_ENDFRAG) || (wFragType == FRAGCTL_NONFRAG)) {
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
}
if ((wFragType == FRAGCTL_STAFRAG) || (wFragType == FRAGCTL_MIDFRAG)) { //StartFrag or MidFrag
pMACHeader->frame_control |= FC_MOREFRAG;
}
}
/*+
*
* Description:
* Request instructs a MAC to transmit a 802.11 management packet through
* the adapter onto the medium.
*
* Parameters:
* In:
* hDeviceContext - Pointer to the adapter
* pPacket - A pointer to a descriptor for the packet to transmit
* Out:
* none
*
* Return Value: CMD_STATUS_PENDING if MAC Tx resource available; otherwise false
*
-*/
CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
struct vnt_tx_mgmt *pPacket)
{
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
struct vnt_tx_buffer *pTX_Buffer;
struct vnt_usb_send_context *pContext;
struct vnt_tx_fifo_head *pTxBufHead;
struct ieee80211_hdr *pMACHeader;
struct ethhdr sEthHeader;
u8 byPktType, *pbyTxBufferAddr;
struct vnt_mic_hdr *pMICHDR = NULL;
u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize;
int bNeedACK, bIsPSPOLL = false;
u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4;
u32 uPadding = 0;
u16 wTxBufSize;
u32 cbMacHdLen;
u16 wCurrentRate = RATE_1M;
unsigned long flags;
if (pDevice->byBBType == BB_TYPE_11A) {
wCurrentRate = RATE_6M;
byPktType = PK_TYPE_11A;
} else {
wCurrentRate = RATE_1M;
byPktType = PK_TYPE_11B;
}
if (pMgmt->eScanState != WMAC_NO_SCANNING)
vnt_rf_setpower(pDevice, wCurrentRate, pDevice->byCurrentCh);
else
vnt_rf_setpower(pDevice, wCurrentRate, pMgmt->uCurrChannel);
pDevice->wCurrentRate = wCurrentRate;
spin_lock_irqsave(&pDevice->lock, flags);
pContext = s_vGetFreeContext(pDevice);
if (!pContext) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
"ManagementSend TX...NO CONTEXT!\n");
spin_unlock_irqrestore(&pDevice->lock, flags);
return CMD_STATUS_RESOURCES;
}
pTX_Buffer = (struct vnt_tx_buffer *)&pContext->data[0];
cbFrameBodySize = pPacket->cbPayloadLen;
pTxBufHead = &pTX_Buffer->fifo_head;
pbyTxBufferAddr = (u8 *)&pTxBufHead->adwTxKey[0];
wTxBufSize = sizeof(struct vnt_tx_fifo_head);
//Set packet type
if (byPktType == PK_TYPE_11A) {//0000 0000 0000 0000
pTxBufHead->wFIFOCtl = 0;
}
else if (byPktType == PK_TYPE_11B) {//0000 0001 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11B;
}
else if (byPktType == PK_TYPE_11GB) {//0000 0010 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GB;
}
else if (byPktType == PK_TYPE_11GA) {//0000 0011 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_11GA;
}
pTxBufHead->wFIFOCtl |= FIFOCTL_TMOEN;
pTxBufHead->time_stamp = cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
if (is_multicast_ether_addr(pPacket->p80211Header->sA3.abyAddr1)) {
bNeedACK = false;
}
else {
bNeedACK = true;
pTxBufHead->wFIFOCtl |= FIFOCTL_NEEDACK;
};
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) ||
(pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ) {
pTxBufHead->wFIFOCtl |= FIFOCTL_LRETRY;
//Set Preamble type always long
//pDevice->byPreambleType = PREAMBLE_LONG;
// probe-response don't retry
//if ((pPacket->p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_MGMT_PROBE_RSP) {
// bNeedACK = false;
// pTxBufHead->wFIFOCtl &= (~FIFOCTL_NEEDACK);
//}
}
pTxBufHead->wFIFOCtl |= (FIFOCTL_GENINT | FIFOCTL_ISDMA0);
if ((pPacket->p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL) {
bIsPSPOLL = true;
cbMacHdLen = WLAN_HDR_ADDR2_LEN;
} else {
cbMacHdLen = WLAN_HDR_ADDR3_LEN;
}
//Set FRAGCTL_MACHDCNT
pTxBufHead->wFragCtl |= cpu_to_le16((u16)(cbMacHdLen << 10));
// Notes:
// Although spec says MMPDU can be fragmented; In most case,
// no one will send a MMPDU under fragmentation. With RTS may occur.
if (WLAN_GET_FC_ISWEP(pPacket->p80211Header->sA4.wFrameCtl) != 0) {
if (pDevice->eEncryptionStatus == Ndis802_11Encryption1Enabled) {
cbIVlen = 4;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_LEGACY;
}
else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) {
cbIVlen = 8;//IV+ExtIV
cbMIClen = 8;
cbICVlen = 4;
pTxBufHead->wFragCtl |= FRAGCTL_TKIP;
//We need to get seed here for filling TxKey entry.
//TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr,
// pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16, pDevice->abyPRNG);
}
else if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) {
cbIVlen = 8;//RSN Header
cbICVlen = 8;//MIC
pTxBufHead->wFragCtl |= FRAGCTL_AES;
}
//MAC Header should be padding 0 to DW alignment.
uPadding = 4 - (cbMacHdLen%4);
uPadding %= 4;
}
cbFrameSize = cbMacHdLen + cbFrameBodySize + cbIVlen + cbMIClen + cbICVlen + cbFCSlen;
//Set FIFOCTL_GrpAckPolicy
if (pDevice->bGrpAckPolicy == true) {//0000 0100 0000 0000
pTxBufHead->wFIFOCtl |= FIFOCTL_GRPACK;
}
//the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
//Set RrvTime/RTS/CTS Buffer
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
sizeof(struct vnt_cts);
}
else { // 802.11a/b packet
cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
sizeof(struct vnt_tx_datahead_ab);
}
memcpy(&(sEthHeader.h_dest[0]),
&(pPacket->p80211Header->sA3.abyAddr1[0]),
ETH_ALEN);
memcpy(&(sEthHeader.h_source[0]),
&(pPacket->p80211Header->sA3.abyAddr2[0]),
ETH_ALEN);
//=========================
// No Fragmentation
//=========================
pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG;
/* Fill FIFO,RrvTime,RTS,and CTS */
uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
pTX_Buffer, &pMICHDR, 0,
cbFrameSize, bNeedACK, &sEthHeader, false);
pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + cbFrameBodySize;
if (WLAN_GET_FC_ISWEP(pPacket->p80211Header->sA4.wFrameCtl) != 0) {
u8 * pbyIVHead;
u8 * pbyPayloadHead;
u8 * pbyBSSID;
PSKeyItem pTransmitKey = NULL;
pbyIVHead = (u8 *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding);
pbyPayloadHead = (u8 *)(pbyTxBufferAddr + cbHeaderSize + cbMacHdLen + uPadding + cbIVlen);
do {
if (pDevice->op_mode == NL80211_IFTYPE_STATION &&
pDevice->bLinkPass == true) {
pbyBSSID = pDevice->abyBSSID;
// get pairwise key
if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, PAIRWISE_KEY, &pTransmitKey) == false) {
// get group key
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == true) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get GTK.\n");
break;
}
} else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get PTK.\n");
break;
}
}
// get group key
pbyBSSID = pDevice->abyBroadcastAddr;
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) {
pTransmitKey = NULL;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KEY is NULL. OP Mode[%d]\n", pDevice->op_mode);
} else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Get GTK.\n");
}
} while(false);
//Fill TXKEY
s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey,
(u8 *)pMACHeader, (u16)cbFrameBodySize, NULL);
memcpy(pMACHeader, pPacket->p80211Header, cbMacHdLen);
memcpy(pbyPayloadHead, ((u8 *)(pPacket->p80211Header) + cbMacHdLen),
cbFrameBodySize);
}
else {
// Copy the Packet into a tx Buffer
memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen);
}
pMACHeader->seq_ctrl = cpu_to_le16(pDevice->wSeqCounter << 4);
pDevice->wSeqCounter++ ;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
if (bIsPSPOLL) {
// The MAC will automatically replace the Duration-field of MAC header by Duration-field
// of FIFO control header.
// This will cause AID-field of PS-POLL packet be incorrect (Because PS-POLL's AID field is
// in the same place of other packet's Duration-field).
// And it will cause Cisco-AP to issue Disassociation-packet
if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
struct vnt_tx_datahead_g *data_head = &pTX_Buffer->tx_head.
tx_cts.tx.head.cts_g.data_head;
data_head->duration_a =
cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
data_head->duration_b =
cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
} else {
struct vnt_tx_datahead_ab *data_head = &pTX_Buffer->tx_head.
tx_ab.tx.head.data_head_ab;
data_head->duration =
cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
}
}
pTX_Buffer->tx_byte_count = cpu_to_le16((u16)(cbReqCount));
pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F));
pTX_Buffer->byType = 0x00;
pContext->skb = NULL;
pContext->type = CONTEXT_MGMT_PACKET;
pContext->buf_len = (u16)cbReqCount + 4; /* USB header */
if (WLAN_GET_FC_TODS(pMACHeader->frame_control) == 0) {
s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
&pMACHeader->addr1[0], (u16)cbFrameSize,
pTxBufHead->wFIFOCtl);
}
else {
s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
&pMACHeader->addr3[0], (u16)cbFrameSize,
pTxBufHead->wFIFOCtl);
}
PIPEnsSendBulkOut(pDevice,pContext);
spin_unlock_irqrestore(&pDevice->lock, flags);
return CMD_STATUS_PENDING;
}
CMD_STATUS csBeacon_xmit(struct vnt_private *pDevice,
struct vnt_tx_mgmt *pPacket)
{
struct vnt_beacon_buffer *pTX_Buffer;
struct vnt_tx_short_buf_head *short_head;
u32 cbFrameSize = pPacket->cbMPDULen + WLAN_FCS_LEN;
u32 cbHeaderSize = 0;
struct ieee80211_hdr *pMACHeader;
u16 wCurrentRate;
u32 cbFrameBodySize;
u32 cbReqCount;
struct vnt_usb_send_context *pContext;
CMD_STATUS status;
pContext = s_vGetFreeContext(pDevice);
if (NULL == pContext) {
status = CMD_STATUS_RESOURCES;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ManagementSend TX...NO CONTEXT!\n");
return status ;
}
pTX_Buffer = (struct vnt_beacon_buffer *)&pContext->data[0];
short_head = &pTX_Buffer->short_head;
cbFrameBodySize = pPacket->cbPayloadLen;
cbHeaderSize = sizeof(struct vnt_tx_short_buf_head);
if (pDevice->byBBType == BB_TYPE_11A) {
wCurrentRate = RATE_6M;
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate,
PK_TYPE_11A, &short_head->ab);
/* Get Duration and TimeStampOff */
short_head->duration = s_uGetDataDuration(pDevice,
PK_TYPE_11A, false);
short_head->time_stamp_off =
vnt_time_stamp_off(pDevice, wCurrentRate);
} else {
wCurrentRate = RATE_1M;
short_head->fifo_ctl |= FIFOCTL_11B;
/* Get SignalField,ServiceField,Length */
BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate,
PK_TYPE_11B, &short_head->ab);
/* Get Duration and TimeStampOff */
short_head->duration = s_uGetDataDuration(pDevice,
PK_TYPE_11B, false);
short_head->time_stamp_off =
vnt_time_stamp_off(pDevice, wCurrentRate);
}
/* Generate Beacon Header */
pMACHeader = &pTX_Buffer->hdr;
memcpy(pMACHeader, pPacket->p80211Header, pPacket->cbMPDULen);
pMACHeader->duration_id = 0;
pMACHeader->seq_ctrl = cpu_to_le16(pDevice->wSeqCounter << 4);
pDevice->wSeqCounter++;
if (pDevice->wSeqCounter > 0x0fff)
pDevice->wSeqCounter = 0;
cbReqCount = cbHeaderSize + WLAN_HDR_ADDR3_LEN + cbFrameBodySize;
pTX_Buffer->tx_byte_count = cpu_to_le16((u16)cbReqCount);
pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F));
pTX_Buffer->byType = 0x01;
pContext->skb = NULL;
pContext->type = CONTEXT_MGMT_PACKET;
pContext->buf_len = (u16)cbReqCount + 4; /* USB header */
PIPEnsSendBulkOut(pDevice,pContext);
return CMD_STATUS_PENDING;
}
//TYPE_AC0DMA data tx
/*
* Description:
* Tx packet via AC0DMA(DMA1)
*
* Parameters:
* In:
* pDevice - Pointer to the adapter
* skb - Pointer to tx skb packet
* Out:
* void
*
* Return Value: NULL
*/
int nsDMA_tx_packet(struct vnt_private *pDevice, struct sk_buff *skb)
{
struct net_device_stats *pStats = &pDevice->stats;
struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
struct vnt_tx_buffer *pTX_Buffer;
u32 BytesToWrite = 0, uHeaderLen = 0;
u32 uNodeIndex = 0;
u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
u16 wAID;
u8 byPktType;
int bNeedEncryption = false;
PSKeyItem pTransmitKey = NULL;
int ii;
int bTKIP_UseGTK = false;
int bNeedDeAuth = false;
u8 *pbyBSSID;
int bNodeExist = false;
struct vnt_usb_send_context *pContext;
bool fConvertedPacket;
u32 status;
u16 wKeepRate = pDevice->wCurrentRate;
int bTxeapol_key = false;
if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
if (pDevice->uAssocCount == 0) {
dev_kfree_skb_irq(skb);
return 0;
}
if (is_multicast_ether_addr((u8 *)(skb->data))) {
uNodeIndex = 0;
bNodeExist = true;
if (pMgmt->sNodeDBTable[0].bPSEnable) {
skb_queue_tail(&(pMgmt->sNodeDBTable[0].sTxPSQueue), skb);
pMgmt->sNodeDBTable[0].wEnQueueCnt++;
// set tx map
pMgmt->abyPSTxMap[0] |= byMask[0];
return 0;
}
// multicast/broadcast data rate
if (pDevice->byBBType != BB_TYPE_11A)
pDevice->wCurrentRate = RATE_2M;
else
pDevice->wCurrentRate = RATE_24M;
// long preamble type
pDevice->byPreambleType = PREAMBLE_SHORT;
}else {
if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(skb->data), &uNodeIndex)) {
if (pMgmt->sNodeDBTable[uNodeIndex].bPSEnable) {
skb_queue_tail(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue, skb);
pMgmt->sNodeDBTable[uNodeIndex].wEnQueueCnt++;
// set tx map
wAID = pMgmt->sNodeDBTable[uNodeIndex].wAID;
pMgmt->abyPSTxMap[wAID >> 3] |= byMask[wAID & 7];
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Set:pMgmt->abyPSTxMap[%d]= %d\n",
(wAID >> 3), pMgmt->abyPSTxMap[wAID >> 3]);
return 0;
}
// AP rate decided from node
pDevice->wCurrentRate = pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate;
// tx preamble decided from node
if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble) {
pDevice->byPreambleType = pDevice->byShortPreamble;
}else {
pDevice->byPreambleType = PREAMBLE_LONG;
}
bNodeExist = true;
}
}
if (bNodeExist == false) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Unknown STA not found in node DB \n");
dev_kfree_skb_irq(skb);
return 0;
}
}
memcpy(&pDevice->sTxEthHeader, skb->data, ETH_HLEN);
//mike add:station mode check eapol-key challenge--->
{
u8 Protocol_Version; //802.1x Authentication
u8 Packet_Type; //802.1x Authentication
u8 Descriptor_type;
u16 Key_info;
Protocol_Version = skb->data[ETH_HLEN];
Packet_Type = skb->data[ETH_HLEN+1];
Descriptor_type = skb->data[ETH_HLEN+1+1+2];
Key_info = (skb->data[ETH_HLEN+1+1+2+1] << 8)|(skb->data[ETH_HLEN+1+1+2+2]);
if (pDevice->sTxEthHeader.h_proto == cpu_to_be16(ETH_P_PAE)) {
/* 802.1x OR eapol-key challenge frame transfer */
if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
(Packet_Type == 3)) {
bTxeapol_key = true;
if(!(Key_info & BIT3) && //WPA or RSN group-key challenge
(Key_info & BIT8) && (Key_info & BIT9)) { //send 2/2 key
if(Descriptor_type==254) {
pDevice->fWPA_Authened = true;
PRINT_K("WPA ");
}
else {
pDevice->fWPA_Authened = true;
PRINT_K("WPA2(re-keying) ");
}
PRINT_K("Authentication completed!!\n");
}
else if((Key_info & BIT3) && (Descriptor_type==2) && //RSN pairwise-key challenge
(Key_info & BIT8) && (Key_info & BIT9)) {
pDevice->fWPA_Authened = true;
PRINT_K("WPA2 Authentication completed!!\n");
}
}
}
}
//mike add:station mode check eapol-key challenge<---
if (pDevice->bEncryptionEnable == true) {
bNeedEncryption = true;
// get Transmit key
do {
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
(pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
pbyBSSID = pDevice->abyBSSID;
// get pairwise key
if (KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, PAIRWISE_KEY, &pTransmitKey) == false) {
// get group key
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == true) {
bTKIP_UseGTK = true;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n");
break;
}
} else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get PTK.\n");
break;
}
}else if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
/* TO_DS = 0 and FROM_DS = 0 --> 802.11 MAC Address1 */
pbyBSSID = pDevice->sTxEthHeader.h_dest;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"IBSS Serach Key: \n");
for (ii = 0; ii< 6; ii++)
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"%x \n", *(pbyBSSID+ii));
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"\n");
// get pairwise key
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, PAIRWISE_KEY, &pTransmitKey) == true)
break;
}
// get group key
pbyBSSID = pDevice->abyBroadcastAddr;
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) {
pTransmitKey = NULL;
if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"IBSS and KEY is NULL. [%d]\n", pMgmt->eCurrMode);
}
else
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"NOT IBSS and KEY is NULL. [%d]\n", pMgmt->eCurrMode);
} else {
bTKIP_UseGTK = true;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n");
}
} while(false);
}
byPktType = (u8)pDevice->byPacketType;
if (pDevice->bFixRate) {
if (pDevice->byBBType == BB_TYPE_11B) {
if (pDevice->uConnectionRate >= RATE_11M) {
pDevice->wCurrentRate = RATE_11M;
} else {
pDevice->wCurrentRate = (u16)pDevice->uConnectionRate;
}
} else {
if ((pDevice->byBBType == BB_TYPE_11A) &&
(pDevice->uConnectionRate <= RATE_6M)) {
pDevice->wCurrentRate = RATE_6M;
} else {
if (pDevice->uConnectionRate >= RATE_54M)
pDevice->wCurrentRate = RATE_54M;
else
pDevice->wCurrentRate = (u16)pDevice->uConnectionRate;
}
}
}
else {
if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) {
// Adhoc Tx rate decided from node DB
if (is_multicast_ether_addr(pDevice->sTxEthHeader.h_dest)) {
// Multicast use highest data rate
pDevice->wCurrentRate = pMgmt->sNodeDBTable[0].wTxDataRate;
// preamble type
pDevice->byPreambleType = pDevice->byShortPreamble;
}
else {
if (BSSbIsSTAInNodeDB(pDevice, &(pDevice->sTxEthHeader.h_dest[0]), &uNodeIndex)) {
pDevice->wCurrentRate = pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate;
if (pMgmt->sNodeDBTable[uNodeIndex].bShortPreamble) {
pDevice->byPreambleType = pDevice->byShortPreamble;
}
else {
pDevice->byPreambleType = PREAMBLE_LONG;
}
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Found Node Index is [%d] Tx Data Rate:[%d]\n",uNodeIndex, pDevice->wCurrentRate);
}
else {
if (pDevice->byBBType != BB_TYPE_11A)
pDevice->wCurrentRate = RATE_2M;
else
pDevice->wCurrentRate = RATE_24M; // refer to vMgrCreateOwnIBSS()'s
// abyCurrExtSuppRates[]
pDevice->byPreambleType = PREAMBLE_SHORT;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Not Found Node use highest basic Rate.....\n");
}
}
}
if (pDevice->op_mode == NL80211_IFTYPE_STATION) {
// Infra STA rate decided from AP Node, index = 0
pDevice->wCurrentRate = pMgmt->sNodeDBTable[0].wTxDataRate;
}
}
if (pDevice->sTxEthHeader.h_proto == cpu_to_be16(ETH_P_PAE)) {
if (pDevice->byBBType != BB_TYPE_11A) {
pDevice->wCurrentRate = RATE_1M;
pDevice->byTopCCKBasicRate = RATE_1M;
pDevice->byTopOFDMBasicRate = RATE_6M;
} else {
pDevice->wCurrentRate = RATE_6M;
pDevice->byTopCCKBasicRate = RATE_1M;
pDevice->byTopOFDMBasicRate = RATE_6M;
}
}
DBG_PRT(MSG_LEVEL_DEBUG,
KERN_INFO "dma_tx: pDevice->wCurrentRate = %d\n",
pDevice->wCurrentRate);
if (wKeepRate != pDevice->wCurrentRate) {
bScheduleCommand((void *) pDevice, WLAN_CMD_SETPOWER, NULL);
}
if (pDevice->wCurrentRate <= RATE_11M) {
byPktType = PK_TYPE_11B;
}
if (bNeedEncryption == true) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ntohs Pkt Type=%04x\n", ntohs(pDevice->sTxEthHeader.h_proto));
if ((pDevice->sTxEthHeader.h_proto) == cpu_to_be16(ETH_P_PAE)) {
bNeedEncryption = false;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Pkt Type=%04x\n", (pDevice->sTxEthHeader.h_proto));
if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
if (pTransmitKey == NULL) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Don't Find TX KEY\n");
}
else {
if (bTKIP_UseGTK == true) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"error: KEY is GTK!!~~\n");
}
else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%X]\n",
pTransmitKey->dwKeyIndex);
bNeedEncryption = true;
}
}
}
}
else {
if (pTransmitKey == NULL) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"return no tx key\n");
dev_kfree_skb_irq(skb);
pStats->tx_dropped++;
return STATUS_FAILURE;
}
}
}
pContext = s_vGetFreeContext(pDevice);
if (!pContext) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG" pContext == NULL\n");
dev_kfree_skb_irq(skb);
return STATUS_RESOURCES;
}
pTX_Buffer = (struct vnt_tx_buffer *)&pContext->data[0];
fConvertedPacket = s_bPacketToWirelessUsb(pDevice, byPktType,
pTX_Buffer, bNeedEncryption,
skb->len, &pDevice->sTxEthHeader,
(u8 *)skb->data, pTransmitKey, uNodeIndex,
pDevice->wCurrentRate,
&uHeaderLen, &BytesToWrite
);
if (fConvertedPacket == false) {
pContext->in_use = false;
dev_kfree_skb_irq(skb);
return STATUS_FAILURE;
}
if ( pDevice->bEnablePSMode == true ) {
if ( !pDevice->bPSModeTxBurst ) {
bScheduleCommand((void *) pDevice,
WLAN_CMD_MAC_DISPOWERSAVING,
NULL);
pDevice->bPSModeTxBurst = true;
}
}
pTX_Buffer->byPKTNO = (u8) (((pDevice->wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F));
pTX_Buffer->tx_byte_count = cpu_to_le16((u16)BytesToWrite);
pContext->skb = skb;
pContext->type = CONTEXT_DATA_PACKET;
pContext->buf_len = (u16)BytesToWrite + 4 ; /* USB header */
s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
&pDevice->sTxEthHeader.h_dest[0],
(u16)(BytesToWrite-uHeaderLen),
pTX_Buffer->fifo_head.wFIFOCtl);
status = PIPEnsSendBulkOut(pDevice,pContext);
if (bNeedDeAuth == true) {
u16 wReason = WLAN_MGMT_REASON_MIC_FAILURE;
bScheduleCommand((void *) pDevice, WLAN_CMD_DEAUTH, (u8 *) &wReason);
}
if (status != STATUS_PENDING) {
pContext->in_use = false;
dev_kfree_skb_irq(skb);
return STATUS_FAILURE;
}
return 0;
}