// the allocated NDIS PACKET must be freed via RTMPFreeNdisPacket()
NDIS_STATUS RTMPAllocateNdisPacket(
IN PRTMP_ADAPTER pAd,
OUT PNDIS_PACKET *ppPacket,
IN PUCHAR pHeader,
IN UINT HeaderLen,
IN PUCHAR pData,
IN UINT DataLen)
{
PNDIS_PACKET pPacket;
ASSERT(pData);
ASSERT(DataLen);
// 1. Allocate a packet
pPacket = (PNDIS_PACKET *) dev_alloc_skb(HeaderLen + DataLen + TXPADDING_SIZE);
if (pPacket == NULL)
{
*ppPacket = NULL;
#ifdef DEBUG
printk("RTMPAllocateNdisPacket Fail\n\n");
#endif
return NDIS_STATUS_FAILURE;
}
// 2. clone the frame content
if (HeaderLen > 0)
NdisMoveMemory(GET_OS_PKT_DATAPTR(pPacket), pHeader, HeaderLen);
if (DataLen > 0)
NdisMoveMemory(GET_OS_PKT_DATAPTR(pPacket) + HeaderLen, pData, DataLen);
// 3. update length of packet
skb_put(GET_OS_PKT_TYPE(pPacket), HeaderLen+DataLen);
RTMP_SET_PACKET_SOURCE(pPacket, PKTSRC_NDIS);
// printk("%s : pPacket = %p, len = %d\n", __func__, pPacket, GET_OS_PKT_LEN(pPacket));
*ppPacket = pPacket;
return NDIS_STATUS_SUCCESS;
}
int RtmpUSBMgmtKickOut(
IN RTMP_ADAPTER *pAd,
IN UCHAR QueIdx,
IN PNDIS_PACKET pPacket,
IN PUCHAR pSrcBufVA,
IN UINT SrcBufLen)
{
PTXINFO_STRUC pTxInfo;
ULONG BulkOutSize;
UCHAR padLen;
PUCHAR pDest;
ULONG SwIdx = pAd->MgmtRing.TxCpuIdx;
PTX_CONTEXT pMLMEContext = (PTX_CONTEXT)pAd->MgmtRing.Cell[SwIdx].AllocVa;
unsigned long IrqFlags;
pTxInfo = (PTXINFO_STRUC)(pSrcBufVA);
BulkOutSize = SrcBufLen;
BulkOutSize = (BulkOutSize + 3) & (~3);
RTMPWriteTxInfo(pAd, pTxInfo, (USHORT)(BulkOutSize - TXINFO_SIZE), TRUE, EpToQueue[MGMTPIPEIDX], FALSE, FALSE);
BulkOutSize += 4;
if ((BulkOutSize % pAd->BulkOutMaxPacketSize) == 0)
BulkOutSize += 4;
padLen = BulkOutSize - SrcBufLen;
ASSERT((padLen <= RTMP_PKT_TAIL_PADDING));
pDest = (PUCHAR)(pSrcBufVA + SrcBufLen);
skb_put(GET_OS_PKT_TYPE(pPacket), padLen);
NdisZeroMemory(pDest, padLen);
RTMP_IRQ_LOCK(&pAd->MLMEBulkOutLock, IrqFlags);
pAd->MgmtRing.Cell[pAd->MgmtRing.TxCpuIdx].pNdisPacket = pPacket;
pMLMEContext->TransferBuffer = (PTX_BUFFER)(GET_OS_PKT_DATAPTR(pPacket));
pMLMEContext->BulkOutSize = BulkOutSize;
pMLMEContext->InUse = TRUE;
pMLMEContext->bWaitingBulkOut = TRUE;
pAd->MgmtRing.TxSwFreeIdx--;
INC_RING_INDEX(pAd->MgmtRing.TxCpuIdx, MGMT_RING_SIZE);
RTMP_IRQ_UNLOCK(&pAd->MLMEBulkOutLock, IrqFlags);
RTUSB_SET_BULK_FLAG(pAd, fRTUSB_BULK_OUT_MLME);
RTUSBKickBulkOut(pAd);
return 0;
}
/*
Must be run in Interrupt context
This function handle RT2870 specific TxDesc and cpu index update and kick the packet out.
*/
int RtmpUSBMgmtKickOut(struct rt_rtmp_adapter *pAd,
u8 QueIdx,
void *pPacket,
u8 *pSrcBufVA, u32 SrcBufLen)
{
struct rt_txinfo *pTxInfo;
unsigned long BulkOutSize;
u8 padLen;
u8 *pDest;
unsigned long SwIdx = pAd->MgmtRing.TxCpuIdx;
struct rt_tx_context *pMLMEContext =
(struct rt_tx_context *)pAd->MgmtRing.Cell[SwIdx].AllocVa;
unsigned long IrqFlags;
pTxInfo = (struct rt_txinfo *)(pSrcBufVA);
/* Build our URB for USBD */
BulkOutSize = SrcBufLen;
BulkOutSize = (BulkOutSize + 3) & (~3);
RTMPWriteTxInfo(pAd, pTxInfo, (u16)(BulkOutSize - TXINFO_SIZE),
TRUE, EpToQueue[MGMTPIPEIDX], FALSE, FALSE);
BulkOutSize += 4; /* Always add 4 extra bytes at every packet. */
/* If BulkOutSize is multiple of BulkOutMaxPacketSize, add extra 4 bytes again. */
if ((BulkOutSize % pAd->BulkOutMaxPacketSize) == 0)
BulkOutSize += 4;
padLen = BulkOutSize - SrcBufLen;
ASSERT((padLen <= RTMP_PKT_TAIL_PADDING));
/* Now memzero all extra padding bytes. */
pDest = (u8 *)(pSrcBufVA + SrcBufLen);
skb_put(GET_OS_PKT_TYPE(pPacket), padLen);
NdisZeroMemory(pDest, padLen);
RTMP_IRQ_LOCK(&pAd->MLMEBulkOutLock, IrqFlags);
pAd->MgmtRing.Cell[pAd->MgmtRing.TxCpuIdx].pNdisPacket = pPacket;
pMLMEContext->TransferBuffer =
(struct rt_tx_buffer *)(GET_OS_PKT_DATAPTR(pPacket));
/* Length in TxInfo should be 8 less than bulkout size. */
pMLMEContext->BulkOutSize = BulkOutSize;
pMLMEContext->InUse = TRUE;
pMLMEContext->bWaitingBulkOut = TRUE;
/*for debug */
/*hex_dump("RtmpUSBMgmtKickOut", &pMLMEContext->TransferBuffer->field.WirelessPacket[0], (pMLMEContext->BulkOutSize > 16 ? 16 : pMLMEContext->BulkOutSize)); */
/*pAd->RalinkCounters.KickTxCount++; */
/*pAd->RalinkCounters.OneSecTxDoneCount++; */
/*if (pAd->MgmtRing.TxSwFreeIdx == MGMT_RING_SIZE) */
/* needKickOut = TRUE; */
/* Decrease the TxSwFreeIdx and Increase the TX_CTX_IDX */
pAd->MgmtRing.TxSwFreeIdx--;
INC_RING_INDEX(pAd->MgmtRing.TxCpuIdx, MGMT_RING_SIZE);
RTMP_IRQ_UNLOCK(&pAd->MLMEBulkOutLock, IrqFlags);
RTUSB_SET_BULK_FLAG(pAd, fRTUSB_BULK_OUT_MLME);
/*if (needKickOut) */
RTUSBKickBulkOut(pAd);
return 0;
}
/*
Must be run in Interrupt context
This function handle RT2870 specific TxDesc and cpu index update and kick the packet out.
*/
int RtmpUSBMgmtKickOut(
IN RTMP_ADAPTER *pAd,
IN UCHAR QueIdx,
IN PNDIS_PACKET pPacket,
IN PUCHAR pSrcBufVA,
IN UINT SrcBufLen)
{
PTXINFO_STRUC pTxInfo;
ULONG BulkOutSize;
UCHAR padLen;
PUCHAR pDest;
ULONG SwIdx = pAd->MgmtRing.TxCpuIdx;
PTX_CONTEXT pMLMEContext = (PTX_CONTEXT)pAd->MgmtRing.Cell[SwIdx].AllocVa;
unsigned long IrqFlags;
pTxInfo = (PTXINFO_STRUC)(pSrcBufVA);
// Build our URB for USBD
BulkOutSize = SrcBufLen;
BulkOutSize = (BulkOutSize + 3) & (~3);
RTMPWriteTxInfo(pAd, pTxInfo, (USHORT)(BulkOutSize - TXINFO_SIZE), TRUE, EpToQueue[MGMTPIPEIDX], FALSE, FALSE);
BulkOutSize += 4; // Always add 4 extra bytes at every packet.
// If BulkOutSize is multiple of BulkOutMaxPacketSize, add extra 4 bytes again.
if ((BulkOutSize % pAd->BulkOutMaxPacketSize) == 0)
BulkOutSize += 4;
padLen = BulkOutSize - SrcBufLen;
ASSERT((padLen <= RTMP_PKT_TAIL_PADDING));
// Now memzero all extra padding bytes.
pDest = (PUCHAR)(pSrcBufVA + SrcBufLen);
skb_put(GET_OS_PKT_TYPE(pPacket), padLen);
NdisZeroMemory(pDest, padLen);
RTMP_IRQ_LOCK(&pAd->MLMEBulkOutLock, IrqFlags);
pAd->MgmtRing.Cell[pAd->MgmtRing.TxCpuIdx].pNdisPacket = pPacket;
pMLMEContext->TransferBuffer = (PTX_BUFFER)(GET_OS_PKT_DATAPTR(pPacket));
// Length in TxInfo should be 8 less than bulkout size.
pMLMEContext->BulkOutSize = BulkOutSize;
pMLMEContext->InUse = TRUE;
pMLMEContext->bWaitingBulkOut = TRUE;
//for debug
//hex_dump("RtmpUSBMgmtKickOut", &pMLMEContext->TransferBuffer->field.WirelessPacket[0], (pMLMEContext->BulkOutSize > 16 ? 16 : pMLMEContext->BulkOutSize));
//pAd->RalinkCounters.KickTxCount++;
//pAd->RalinkCounters.OneSecTxDoneCount++;
//if (pAd->MgmtRing.TxSwFreeIdx == MGMT_RING_SIZE)
// needKickOut = TRUE;
// Decrease the TxSwFreeIdx and Increase the TX_CTX_IDX
pAd->MgmtRing.TxSwFreeIdx--;
INC_RING_INDEX(pAd->MgmtRing.TxCpuIdx, MGMT_RING_SIZE);
RTMP_IRQ_UNLOCK(&pAd->MLMEBulkOutLock, IrqFlags);
RTUSB_SET_BULK_FLAG(pAd, fRTUSB_BULK_OUT_MLME);
//if (needKickOut)
RTUSBKickBulkOut(pAd);
return 0;
}
BOOLEAN PMF_PerformTxFrameAction(
IN PRTMP_ADAPTER pAd,
OUT PNDIS_PACKET pPacket)
{
PHEADER_802_11 pHeader_802_11;
PACKET_INFO PacketInfo;
PUCHAR pSrcBufVA;
UINT SrcBufLen;
UINT8 TXWISize = pAd->chipCap.TXWISize;
INT FrameType;
INT ret;
PMAC_TABLE_ENTRY pEntry = NULL;
RTMP_QueryPacketInfo(pPacket, &PacketInfo, &pSrcBufVA, &SrcBufLen);
if (pSrcBufVA == NULL)
return NORMAL_FRAME;
pHeader_802_11 = (PHEADER_802_11) (pSrcBufVA + TXINFO_SIZE + TXWISize);
#ifdef CONFIG_AP_SUPPORT
pEntry = MacTableLookup(pAd, pHeader_802_11->Addr1);
#endif /* CONFIG_AP_SUPPORT */
FrameType = PMF_RobustFrameClassify(
(PHEADER_802_11)pHeader_802_11,
(PUCHAR)( ((PUCHAR) pHeader_802_11) + LENGTH_802_11),
(SrcBufLen - LENGTH_802_11 - TXINFO_SIZE - TXWISize),
(PUCHAR) pEntry,
FALSE);
switch (FrameType)
{
case ERROR_FRAME:
DBGPRINT(RT_DEBUG_ERROR, ("[PMF]%s: ERROR FRAME\n", __FUNCTION__));
return FALSE;
case NORMAL_FRAME:
case NOT_ROBUST_GROUP_FRAME:
case NOT_ROBUST_UNICAST_FRAME:
break;
case UNICAST_ROBUST_FRAME:
{
pHeader_802_11->FC.Wep = 1;
/* Format: Mac header|CCMP header|Data|MIC|FCS */
skb_put(GET_OS_PKT_TYPE(pPacket), LEN_CCMP_HDR + LEN_CCMP_MIC);
RTMP_QueryPacketInfo(pPacket, &PacketInfo, &pSrcBufVA, &SrcBufLen);
if (pSrcBufVA == NULL)
return NORMAL_FRAME;
pHeader_802_11 = (PHEADER_802_11) (pSrcBufVA + TXINFO_SIZE + TXWISize);
ret = PMF_EncryptUniRobustFrameAction(pAd,
pHeader_802_11,
(SrcBufLen - TXINFO_SIZE - TXWISize));
break;
}
case GROUP_ROBUST_FRAME:
{
ret = PMF_EncapBIPAction(pAd,
pHeader_802_11,
(SrcBufLen - TXINFO_SIZE - TXWISize));
break;
}
}
if (ret == PMF_STATUS_SUCCESS)
return TRUE;
else
return FALSE;
}
