/* * 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 "tcrc.h" #include "wctl.h" #include "hostap.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, u32 uDMAIdx, 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 uDMAIdx, 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 u16 s_uGetRTSCTSRsvTime(struct vnt_private *priv, u8 rsv_type, u8 pkt_type, u32 frame_lenght, u16 current_rate); static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx, 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 u16 s_uGetDataDuration(struct vnt_private *pDevice, u8 byPktType, int bNeedAck); static u16 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->bBoolInUse == false) { context->bBoolInUse = 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]; u32 *pdwIV = (u32 *)pbyIVHead; u32 *pdwExtIV = (u32 *)((u8 *)pbyIVHead + 4); struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyHdrBuf; u32 dwRevIVCounter; /* Fill TXKEY */ if (pTransmitKey == NULL) return; dwRevIVCounter = cpu_to_le32(pDevice->dwIVCounter); *pdwIV = pDevice->dwIVCounter; pDevice->byKeyIndex = pTransmitKey->dwKeyIndex & 0xf; switch (pTransmitKey->byCipherSuite) { case KEY_CTL_WEP: if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN) { memcpy(pDevice->abyPRNG, (u8 *)&dwRevIVCounter, 3); memcpy(pDevice->abyPRNG + 3, pTransmitKey->abyKey, pTransmitKey->uKeyLength); } else { memcpy(pbyBuf, (u8 *)&dwRevIVCounter, 3); memcpy(pbyBuf + 3, pTransmitKey->abyKey, pTransmitKey->uKeyLength); if (pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) { memcpy(pbyBuf+8, (u8 *)&dwRevIVCounter, 3); memcpy(pbyBuf+11, pTransmitKey->abyKey, pTransmitKey->uKeyLength); } memcpy(pDevice->abyPRNG, pbyBuf, 16); } /* Append IV after Mac Header */ *pdwIV &= WEP_IV_MASK; *pdwIV |= (u32)pDevice->byKeyIndex << 30; *pdwIV = cpu_to_le32(*pdwIV); 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_le16((u16)(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(pMACHeader->frame_control & 0xc78f); mic_hdr->seq_ctrl = cpu_to_le16(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 = CRCdwGetCrc32Ex(pbyPayloadHead, wPayloadSize, dwICV);//ICV(Payload) 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 = CRCdwGetCrc32Ex(pbyPayloadHead, wPayloadSize, dwICV);//ICV(Payload) 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 u16 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 u16 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 u16 s_uGetRTSCTSRsvTime(struct vnt_private *priv, u8 rsv_type, u8 pkt_type, u32 frame_lenght, 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_lenght, 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 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 u16 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 u16 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->wDuration_a = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wDuration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack); buf->wTimeStampOff_a = vnt_time_stamp_off(priv, rate); buf->wTimeStampOff_b = vnt_time_stamp_off(priv, priv->byTopCCKBasicRate); return buf->wDuration_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->wDuration_a = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wDuration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack); buf->wDuration_a_f0 = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wDuration_a_f1 = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wTimeStampOff_a = vnt_time_stamp_off(priv, rate); buf->wTimeStampOff_b = vnt_time_stamp_off(priv, priv->byTopCCKBasicRate); return buf->wDuration_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->wDuration = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wDuration_f0 = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wDuration_f1 = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wTimeStampOff = vnt_time_stamp_off(priv, rate); return buf->wDuration; } 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->wDuration = s_uGetDataDuration(priv, pkt_type, need_ack); buf->wTimeStampOff = vnt_time_stamp_off(priv, rate); return buf->wDuration; } static int vnt_fill_ieee80211_rts(struct vnt_private *priv, struct ieee80211_rts *rts, struct ethhdr *eth_hdr, u16 duration) { rts->duration = duration; rts->frame_control = TYPE_CTL_RTS; if (priv->eOPMode == OP_MODE_ADHOC || priv->eOPMode == OP_MODE_AP) memcpy(rts->ra, eth_hdr->h_dest, ETH_ALEN); else memcpy(rts->ra, priv->abyBSSID, ETH_ALEN); if (priv->eOPMode == OP_MODE_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->wDuration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len, PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option); buf->wDuration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, pkt_type, current_rate, need_ack, fb_option); buf->wDuration_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->wDuration_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->wDuration_bb = s_uGetRTSCTSDuration(priv, RTSDUR_BB, frame_len, PK_TYPE_11B, priv->byTopCCKBasicRate, need_ack, fb_option); buf->wDuration_aa = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, pkt_type, current_rate, need_ack, fb_option); buf->wDuration_ba = s_uGetRTSCTSDuration(priv, RTSDUR_BA, frame_len, pkt_type, current_rate, need_ack, fb_option); buf->wRTSDuration_ba_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F0, frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); buf->wRTSDuration_aa_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0, frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); buf->wRTSDuration_ba_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F1, frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option); buf->wRTSDuration_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->wDuration_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->wDuration = 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->wDuration); 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->wDuration = s_uGetRTSCTSDuration(priv, RTSDUR_AA, frame_len, pkt_type, current_rate, need_ack, fb_option); buf->wRTSDuration_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0, frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option); buf->wRTSDuration_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->wDuration); 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, u32 uDMAIdx, 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->wDuration_ba = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA, cbFrameLength, byPktType, wCurrentRate, bNeedAck, byFBOption); /* Get CTSDuration_ba_f0 */ pBuf->wCTSDuration_ba_f0 = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F0, cbFrameLength, byPktType, pDevice->tx_rate_fb0, bNeedAck, byFBOption); /* Get CTSDuration_ba_f1 */ pBuf->wCTSDuration_ba_f1 = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F1, cbFrameLength, byPktType, pDevice->tx_rate_fb1, bNeedAck, byFBOption); /* Get CTS Frame body */ pBuf->data.duration = pBuf->wDuration_ba; pBuf->data.frame_control = TYPE_CTL_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->wDuration_ba = s_uGetRTSCTSDuration(pDevice, CTSDUR_BA, cbFrameLength, byPktType, wCurrentRate, bNeedAck, byFBOption); /*Get CTS Frame body*/ pBuf->data.duration = pBuf->wDuration_ba; pBuf->data.frame_control = TYPE_CTL_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 * uDMAIdx - DMA Index * 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, u32 uDMAIdx, 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->wReserved = 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 (!pFifoHead) return 0; 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->wRTSTxRrvTime_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate); pBuf->wRTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate); pBuf->wRTSTxRrvTime_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate); pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK); pBuf->wTxRrvTime_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->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK); pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK); pBuf->wCTSTxRrvTime_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, uDMAIdx, 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->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate); pBuf->wTxRrvTime = 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->wTxRrvTime = 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->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate); pBuf->wTxRrvTime = 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->wTxRrvTime = 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, u32 uDMAIdx, 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; struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; 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->eOPMode == OP_MODE_ADHOC) || (pDevice->eOPMode == OP_MODE_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->wTimeStamp = 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; //uDMAIdx = TYPE_AC0DMA; //pTxBufHead = (PSTxBufHead) &(pTxBufHead->adwTxKey[0]); /* Fill FIFO, RrvTime, RTS and CTS */ uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate, tx_buffer, &pMICHDR, cbMICHDR, cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS); // Generate TX MAC Header s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption, byFragType, uDMAIdx, 0); if (bNeedEncryption == true) { //Fill TXKEY s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey, pbyMacHdr, (u16)cbFrameBodySize, pMICHDR); if (pDevice->bEnableHostWEP) { pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16; pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0; } } /* 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 uDMAIdx, u32 uFragIdx) { struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyBufferAddr; pMACHeader->frame_control = TYPE_802_11_DATA; if (pDevice->eOPMode == OP_MODE_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->eOPMode == OP_MODE_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; pContext = s_vGetFreeContext(pDevice); if (NULL == pContext) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ManagementSend TX...NO CONTEXT!\n"); 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); if (pDevice->byBBType == BB_TYPE_11A) { wCurrentRate = RATE_6M; byPktType = PK_TYPE_11A; } else { wCurrentRate = RATE_1M; byPktType = PK_TYPE_11B; } // SetPower will cause error power TX state for OFDM Date packet in TX buffer. // 2004.11.11 Kyle -- Using OFDM power to tx MngPkt will decrease the connection capability. // And cmd timer will wait data pkt TX finish before scanning so it's OK // to set power here. if (pMgmt->eScanState != WMAC_NO_SCANNING) { RFbSetPower(pDevice, wCurrentRate, pDevice->byCurrentCh); } else { RFbSetPower(pDevice, wCurrentRate, pMgmt->uCurrChannel); } pDevice->wCurrentRate = wCurrentRate; //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->wTimeStamp = 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, TYPE_TXDMA0, &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->eOPMode == OP_MODE_INFRASTRUCTURE) && (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->eOPMode); } 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->wDuration_a = cpu_to_le16(pPacket->p80211Header->sA2.wDurationID); data_head->wDuration_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->wDuration = cpu_to_le16(pPacket->p80211Header->sA2.wDurationID); } } pTX_Buffer->wTxByteCount = cpu_to_le16((u16)(cbReqCount)); pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); pTX_Buffer->byType = 0x00; pContext->pPacket = NULL; pContext->Type = CONTEXT_MGMT_PACKET; pContext->uBufLen = (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); 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->wTxByteCount = (u16)cbReqCount; pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); pTX_Buffer->byType = 0x01; pContext->pPacket = NULL; pContext->Type = CONTEXT_MGMT_PACKET; pContext->uBufLen = (u16)cbReqCount + 4; //USB header PIPEnsSendBulkOut(pDevice,pContext); return CMD_STATUS_PENDING; } void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; struct vnt_tx_buffer *pTX_Buffer; struct vnt_tx_fifo_head *pTxBufHead; u8 byPktType; u8 *pbyTxBufferAddr; u32 uDuration, cbReqCount; struct ieee80211_hdr *pMACHeader; u32 cbHeaderSize, cbFrameBodySize; int bNeedACK, bIsPSPOLL = false; u32 cbFrameSize; u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4; u32 uPadding = 0; u32 cbMICHDR = 0, uLength = 0; u32 dwMICKey0, dwMICKey1; u32 dwMIC_Priority; u32 *pdwMIC_L, *pdwMIC_R; u16 wTxBufSize; u32 cbMacHdLen; struct ethhdr sEthHeader; struct vnt_mic_hdr *pMICHDR; u32 wCurrentRate = RATE_1M; PUWLAN_80211HDR p80211Header; u32 uNodeIndex = 0; int bNodeExist = false; SKeyItem STempKey; PSKeyItem pTransmitKey = NULL; u8 *pbyIVHead, *pbyPayloadHead, *pbyMacHdr; u32 cbExtSuppRate = 0; struct vnt_usb_send_context *pContext; pMICHDR = NULL; if(skb->len <= WLAN_HDR_ADDR3_LEN) { cbFrameBodySize = 0; } else { cbFrameBodySize = skb->len - WLAN_HDR_ADDR3_LEN; } p80211Header = (PUWLAN_80211HDR)skb->data; pContext = s_vGetFreeContext(pDevice); if (NULL == pContext) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"DMA0 TX...NO CONTEXT!\n"); dev_kfree_skb_irq(skb); return ; } pTX_Buffer = (struct vnt_tx_buffer *)&pContext->Data[0]; pTxBufHead = &pTX_Buffer->fifo_head; pbyTxBufferAddr = (u8 *)&pTxBufHead->adwTxKey[0]; wTxBufSize = sizeof(struct vnt_tx_fifo_head); if (pDevice->byBBType == BB_TYPE_11A) { wCurrentRate = RATE_6M; byPktType = PK_TYPE_11A; } else { wCurrentRate = RATE_1M; byPktType = PK_TYPE_11B; } // SetPower will cause error power TX state for OFDM Date packet in TX buffer. // 2004.11.11 Kyle -- Using OFDM power to tx MngPkt will decrease the connection capability. // And cmd timer will wait data pkt TX finish before scanning so it's OK // to set power here. if (pMgmt->eScanState != WMAC_NO_SCANNING) { RFbSetPower(pDevice, wCurrentRate, pDevice->byCurrentCh); } else { RFbSetPower(pDevice, wCurrentRate, pMgmt->uCurrChannel); } DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"vDMA0_tx_80211: p80211Header->sA3.wFrameCtl = %x \n", p80211Header->sA3.wFrameCtl); //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->wTimeStamp = cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us); if (is_multicast_ether_addr(p80211Header->sA3.abyAddr1)) { bNeedACK = false; if (pDevice->bEnableHostWEP) { uNodeIndex = 0; bNodeExist = true; } } else { if (pDevice->bEnableHostWEP) { if (BSSbIsSTAInNodeDB(pDevice, (u8 *)(p80211Header->sA3.abyAddr1), &uNodeIndex)) bNodeExist = true; } 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 ((p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_MGMT_PROBE_RSP) { // bNeedACK = false; // pTxBufHead->wFIFOCtl &= (~FIFOCTL_NEEDACK); //} } pTxBufHead->wFIFOCtl |= (FIFOCTL_GENINT | FIFOCTL_ISDMA0); if ((p80211Header->sA4.wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL) { bIsPSPOLL = true; cbMacHdLen = WLAN_HDR_ADDR2_LEN; } else { cbMacHdLen = WLAN_HDR_ADDR3_LEN; } // hostapd daemon ext support rate patch if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) { if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0) { cbExtSuppRate += ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN; } if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len != 0) { cbExtSuppRate += ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len + WLAN_IEHDR_LEN; } if (cbExtSuppRate >0) { cbFrameBodySize = WLAN_ASSOCRESP_OFF_SUPP_RATES; } } //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(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 cbMICHDR = sizeof(struct vnt_mic_hdr); 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 + cbExtSuppRate; //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() if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR + sizeof(struct vnt_cts); } else {//802.11a/b packet cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_tx_datahead_ab); } memcpy(&(sEthHeader.h_dest[0]), &(p80211Header->sA3.abyAddr1[0]), ETH_ALEN); memcpy(&(sEthHeader.h_source[0]), &(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, cbMICHDR, cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false); pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize); cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + (cbFrameBodySize + cbMIClen) + cbExtSuppRate; pbyMacHdr = (u8 *)(pbyTxBufferAddr + cbHeaderSize); pbyPayloadHead = (u8 *)(pbyMacHdr + cbMacHdLen + uPadding + cbIVlen); pbyIVHead = (u8 *)(pbyMacHdr + cbMacHdLen + uPadding); // Copy the Packet into a tx Buffer memcpy(pbyMacHdr, skb->data, cbMacHdLen); // version set to 0, patch for hostapd deamon pMACHeader->frame_control &= cpu_to_le16(0xfffc); memcpy(pbyPayloadHead, (skb->data + cbMacHdLen), cbFrameBodySize); // replace support rate, patch for hostapd daemon( only support 11M) if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) { if (cbExtSuppRate != 0) { if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0) memcpy((pbyPayloadHead + cbFrameBodySize), pMgmt->abyCurrSuppRates, ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN ); if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len != 0) memcpy((pbyPayloadHead + cbFrameBodySize) + ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len + WLAN_IEHDR_LEN, pMgmt->abyCurrExtSuppRates, ((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates)->len + WLAN_IEHDR_LEN ); } } // Set wep if (WLAN_GET_FC_ISWEP(p80211Header->sA4.wFrameCtl) != 0) { if (pDevice->bEnableHostWEP) { pTransmitKey = &STempKey; pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; memcpy(pTransmitKey->abyKey, &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], pTransmitKey->uKeyLength ); } if ((pTransmitKey != NULL) && (pTransmitKey->byCipherSuite == KEY_CTL_TKIP)) { dwMICKey0 = *(u32 *)(&pTransmitKey->abyKey[16]); dwMICKey1 = *(u32 *)(&pTransmitKey->abyKey[20]); // DO Software Michael MIC_vInit(dwMICKey0, dwMICKey1); MIC_vAppend((u8 *)&(sEthHeader.h_dest[0]), 12); dwMIC_Priority = 0; MIC_vAppend((u8 *)&dwMIC_Priority, 4); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"DMA0_tx_8021:MIC KEY:"\ " %X, %X\n", dwMICKey0, dwMICKey1); uLength = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen; MIC_vAppend((pbyTxBufferAddr + uLength), cbFrameBodySize); pdwMIC_L = (u32 *)(pbyTxBufferAddr + uLength + cbFrameBodySize); pdwMIC_R = (u32 *)(pbyTxBufferAddr + uLength + 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, cbHeaderSize, uPadding, cbIVlen); DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC:%x, %x\n", *pdwMIC_L, *pdwMIC_R); } s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey, pbyMacHdr, (u16)cbFrameBodySize, pMICHDR); if (pDevice->bEnableHostWEP) { pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16 = pTransmitKey->dwTSC47_16; pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0 = pTransmitKey->wTSC15_0; } if ((pDevice->byLocalID <= REV_ID_VT3253_A1)) { s_vSWencryption(pDevice, pTransmitKey, pbyPayloadHead, (u16)(cbFrameBodySize + cbMIClen)); } } 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->wDuration_a = cpu_to_le16(p80211Header->sA2.wDurationID); data_head->wDuration_b = cpu_to_le16(p80211Header->sA2.wDurationID); } else { struct vnt_tx_datahead_ab *data_head = &pTX_Buffer->tx_head. tx_ab.tx.head.data_head_ab; data_head->wDuration = cpu_to_le16(p80211Header->sA2.wDurationID); } } pTX_Buffer->wTxByteCount = cpu_to_le16((u16)(cbReqCount)); pTX_Buffer->byPKTNO = (u8) (((wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); pTX_Buffer->byType = 0x00; pContext->pPacket = skb; pContext->Type = CONTEXT_MGMT_PACKET; pContext->uBufLen = (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); return ; } //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, u32 uDMAIdx, 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; SKeyItem STempKey; 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; } } pContext = s_vGetFreeContext(pDevice); if (pContext == NULL) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG" pContext == NULL\n"); dev_kfree_skb_irq(skb); return STATUS_RESOURCES; } memcpy(pDevice->sTxEthHeader.h_dest, (u8 *)(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); } if (pDevice->bEnableHostWEP) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"acdma0: STA index %d\n", uNodeIndex); if (pDevice->bEncryptionEnable == true) { pTransmitKey = &STempKey; pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; memcpy(pTransmitKey->abyKey, &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], pTransmitKey->uKeyLength ); } } 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->eOPMode == OP_MODE_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->eOPMode == OP_MODE_INFRASTRUCTURE) { // 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->byACKRate = RATE_1M; pDevice->byTopCCKBasicRate = RATE_1M; pDevice->byTopOFDMBasicRate = RATE_6M; } else { pDevice->wCurrentRate = RATE_6M; pDevice->byACKRate = 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; } } } if (pDevice->bEnableHostWEP) { if ((uNodeIndex != 0) && (pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex & PAIRWISE_KEY)) { 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"); pContext->bBoolInUse = false; dev_kfree_skb_irq(skb); pStats->tx_dropped++; return STATUS_FAILURE; } } } pTX_Buffer = (struct vnt_tx_buffer *)&pContext->Data[0]; fConvertedPacket = s_bPacketToWirelessUsb(pDevice, byPktType, pTX_Buffer, bNeedEncryption, skb->len, uDMAIdx, &pDevice->sTxEthHeader, (u8 *)skb->data, pTransmitKey, uNodeIndex, pDevice->wCurrentRate, &uHeaderLen, &BytesToWrite ); if (fConvertedPacket == false) { pContext->bBoolInUse = 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->wTxByteCount = (u16)BytesToWrite; pContext->pPacket = skb; pContext->Type = CONTEXT_DATA_PACKET; pContext->uBufLen = (u16)BytesToWrite + 4 ; //USB header s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F), &pContext->sEthHeader.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->bBoolInUse = false; dev_kfree_skb_irq(skb); return STATUS_FAILURE; } else return 0; } /* * Description: * Relay packet send (AC1DMA) from rx dpc. * * Parameters: * In: * pDevice - Pointer to the adapter * pPacket - Pointer to rx packet * cbPacketSize - rx ethernet frame size * Out: * TURE, false * * Return Value: Return true if packet is copy to dma1; otherwise false */ int bRelayPacketSend(struct vnt_private *pDevice, u8 *pbySkbData, u32 uDataLen, u32 uNodeIndex) { struct vnt_manager *pMgmt = &pDevice->vnt_mgmt; struct vnt_tx_buffer *pTX_Buffer; u32 BytesToWrite = 0, uHeaderLen = 0; u8 byPktType = PK_TYPE_11B; int bNeedEncryption = false; SKeyItem STempKey; PSKeyItem pTransmitKey = NULL; u8 *pbyBSSID; struct vnt_usb_send_context *pContext; u8 byPktTyp; int fConvertedPacket; u32 status; u16 wKeepRate = pDevice->wCurrentRate; pContext = s_vGetFreeContext(pDevice); if (NULL == pContext) { return false; } memcpy(pDevice->sTxEthHeader.h_dest, (u8 *)pbySkbData, ETH_HLEN); if (pDevice->bEncryptionEnable == true) { bNeedEncryption = true; // get group key pbyBSSID = pDevice->abyBroadcastAddr; if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == false) { pTransmitKey = NULL; DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"KEY is NULL. [%d]\n", pMgmt->eCurrMode); } else { DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n"); } } if (pDevice->bEnableHostWEP) { if (uNodeIndex < MAX_NODE_NUM + 1) { pTransmitKey = &STempKey; pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite; pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex; pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength; pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16; pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0; memcpy(pTransmitKey->abyKey, &pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0], pTransmitKey->uKeyLength ); } } if ( bNeedEncryption && (pTransmitKey == NULL) ) { pContext->bBoolInUse = false; return false; } byPktTyp = (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 { pDevice->wCurrentRate = pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate; } if (wKeepRate != pDevice->wCurrentRate) { bScheduleCommand((void *) pDevice, WLAN_CMD_SETPOWER, NULL); } if (pDevice->wCurrentRate <= RATE_11M) byPktType = PK_TYPE_11B; BytesToWrite = uDataLen + ETH_FCS_LEN; // Convert the packet to an usb frame and copy into our buffer // and send the irp. pTX_Buffer = (struct vnt_tx_buffer *)&pContext->Data[0]; fConvertedPacket = s_bPacketToWirelessUsb(pDevice, byPktType, pTX_Buffer, bNeedEncryption, uDataLen, TYPE_AC0DMA, &pDevice->sTxEthHeader, pbySkbData, pTransmitKey, uNodeIndex, pDevice->wCurrentRate, &uHeaderLen, &BytesToWrite ); if (fConvertedPacket == false) { pContext->bBoolInUse = false; return false; } pTX_Buffer->byPKTNO = (u8) (((pDevice->wCurrentRate<<4) &0x00F0) | ((pDevice->wSeqCounter - 1) & 0x000F)); pTX_Buffer->wTxByteCount = (u16)BytesToWrite; pContext->pPacket = NULL; pContext->Type = CONTEXT_DATA_PACKET; pContext->uBufLen = (u16)BytesToWrite + 4 ; //USB header s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F), &pContext->sEthHeader.h_dest[0], (u16)(BytesToWrite - uHeaderLen), pTX_Buffer->fifo_head.wFIFOCtl); status = PIPEnsSendBulkOut(pDevice,pContext); return true; }