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windows-nt/Source/XPSP1/NT/net/atm/lane/sys/miniport.c
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

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/*++
Copyright (c) 1997 FORE Systems, Inc.
Copyright (c) 1997 Microsoft Corporation
Module Name:
miniport.c
Abstract:
Miniport upper-edge functions.
Author:
Larry Cleeton, FORE Systems (v-lcleet@microsoft.com, lrc@fore.com)
Environment:
Kernel mode
Revision History:
--*/
#include <precomp.h>
#pragma hdrstop
//
// List of supported OIDs for this driver when an Ethernet Elan.
//
static
NDIS_OID EthernetSupportedOids[] = {
OID_GEN_SUPPORTED_LIST,
OID_GEN_HARDWARE_STATUS,
OID_GEN_MEDIA_CONNECT_STATUS,
OID_GEN_MEDIA_SUPPORTED,
OID_GEN_MEDIA_IN_USE,
OID_GEN_MAXIMUM_LOOKAHEAD,
OID_GEN_MAXIMUM_FRAME_SIZE,
OID_GEN_MAXIMUM_TOTAL_SIZE,
OID_GEN_MAC_OPTIONS,
OID_GEN_PROTOCOL_OPTIONS,
OID_GEN_LINK_SPEED,
OID_GEN_TRANSMIT_BUFFER_SPACE,
OID_GEN_RECEIVE_BUFFER_SPACE,
OID_GEN_TRANSMIT_BLOCK_SIZE,
OID_GEN_RECEIVE_BLOCK_SIZE,
OID_GEN_MAXIMUM_SEND_PACKETS,
OID_GEN_VENDOR_DESCRIPTION,
OID_GEN_VENDOR_ID,
OID_GEN_DRIVER_VERSION,
OID_GEN_VENDOR_DRIVER_VERSION,
OID_GEN_CURRENT_PACKET_FILTER,
OID_GEN_CURRENT_LOOKAHEAD,
OID_GEN_XMIT_OK,
OID_GEN_RCV_OK,
OID_GEN_XMIT_ERROR,
OID_GEN_RCV_ERROR,
OID_GEN_RCV_NO_BUFFER,
OID_802_3_PERMANENT_ADDRESS,
OID_802_3_CURRENT_ADDRESS,
OID_802_3_MULTICAST_LIST,
OID_802_3_MAXIMUM_LIST_SIZE,
OID_802_3_RCV_ERROR_ALIGNMENT,
OID_802_3_XMIT_ONE_COLLISION,
OID_802_3_XMIT_MORE_COLLISIONS,
OID_GEN_NETWORK_LAYER_ADDRESSES,
};
static
NDIS_OID TokenRingSupportedOids[] = {
OID_GEN_SUPPORTED_LIST,
OID_GEN_HARDWARE_STATUS,
OID_GEN_MEDIA_CONNECT_STATUS,
OID_GEN_MEDIA_SUPPORTED,
OID_GEN_MEDIA_IN_USE,
OID_GEN_MAXIMUM_LOOKAHEAD,
OID_GEN_MAXIMUM_FRAME_SIZE,
OID_GEN_MAXIMUM_TOTAL_SIZE,
OID_GEN_MAC_OPTIONS,
OID_GEN_PROTOCOL_OPTIONS,
OID_GEN_LINK_SPEED,
OID_GEN_TRANSMIT_BUFFER_SPACE,
OID_GEN_RECEIVE_BUFFER_SPACE,
OID_GEN_TRANSMIT_BLOCK_SIZE,
OID_GEN_RECEIVE_BLOCK_SIZE,
OID_GEN_MAXIMUM_SEND_PACKETS,
OID_GEN_VENDOR_ID,
OID_GEN_VENDOR_DESCRIPTION,
OID_GEN_DRIVER_VERSION,
OID_GEN_VENDOR_DRIVER_VERSION,
OID_GEN_CURRENT_PACKET_FILTER,
OID_GEN_CURRENT_LOOKAHEAD,
OID_GEN_XMIT_OK,
OID_GEN_RCV_OK,
OID_GEN_XMIT_ERROR,
OID_GEN_RCV_ERROR,
OID_GEN_RCV_NO_BUFFER,
OID_802_5_PERMANENT_ADDRESS,
OID_802_5_CURRENT_ADDRESS,
OID_802_5_CURRENT_FUNCTIONAL,
OID_802_5_CURRENT_GROUP,
OID_802_5_LAST_OPEN_STATUS,
OID_802_5_CURRENT_RING_STATUS,
OID_802_5_CURRENT_RING_STATE,
OID_802_5_LINE_ERRORS,
OID_802_5_LOST_FRAMES,
OID_802_5_BURST_ERRORS,
OID_802_5_FRAME_COPIED_ERRORS,
OID_802_5_TOKEN_ERRORS,
OID_GEN_NETWORK_LAYER_ADDRESSES,
};
NDIS_STATUS
AtmLaneMInitialize(
OUT PNDIS_STATUS OpenErrorStatus,
OUT PUINT SelectedMediumIndex,
IN PNDIS_MEDIUM MediumArray,
IN UINT MediumArraySize,
IN NDIS_HANDLE MiniportAdapterHandle,
IN NDIS_HANDLE WrapperConfigurationContext
)
{
UINT i;
NDIS_MEDIUM MediumToFind;
NDIS_STATUS Status;
PATMLANE_ELAN pElan;
PUCHAR pMacAddr;
UINT MacAddrLength;
TRACEIN(MInitialize);
//
// Get context (Elan) supplied with NdisIMInitializeDeviceEx
//
pElan = NdisIMGetDeviceContext(MiniportAdapterHandle);
STRUCT_ASSERT(pElan, atmlane_elan);
ASSERT(pElan->Flags & ELAN_MINIPORT_INIT_PENDING);
DBGP((1, "%d MInitialize\n", pElan->ElanNumber));
do
{
Status = NDIS_STATUS_SUCCESS;
//
// Are we Ethernet or Token Ring?
//
if (pElan->LanType == LANE_LANTYPE_ETH)
{
MediumToFind = NdisMedium802_3;
}
else
{
MediumToFind = NdisMedium802_5;
}
//
// Look for MediumToFind in MediumArray.
//
for (i = 0; i < MediumArraySize; i++)
{
if (MediumArray[i] == MediumToFind)
break;
}
//
// Not found, return error.
if (i == MediumArraySize)
{
Status = NDIS_STATUS_UNSUPPORTED_MEDIA;
break;
}
Status = NDIS_STATUS_SUCCESS;
//
// Output select medium
//
*SelectedMediumIndex = i;
//
// Set my attributes
//
NdisMSetAttributesEx(
MiniportAdapterHandle, // MiniportAdapterHandle
(NDIS_HANDLE)pElan, // MiniportAdapterContext
0, // CheckForHangTimeInSeconds
NDIS_ATTRIBUTE_IGNORE_PACKET_TIMEOUT | // AttributeFlags
NDIS_ATTRIBUTE_IGNORE_REQUEST_TIMEOUT |
NDIS_ATTRIBUTE_INTERMEDIATE_DRIVER |
NDIS_ATTRIBUTE_DESERIALIZE,
0 // AdapterType
);
ACQUIRE_ELAN_LOCK(pElan);
AtmLaneReferenceElan(pElan, "miniport");
//
// Save away the MiniportAdapterHandle now. This is so that we
// don't call NdisMIndicateStatus before calling NdisMSetAttributesEx.
//
pElan->MiniportAdapterHandle = MiniportAdapterHandle;
RELEASE_ELAN_LOCK(pElan);
break;
}
while (FALSE);
//
// Wake up any thread (i.e. AtmLaneShutdownElan) waiting for
// a pending Init to be over.
//
ACQUIRE_ELAN_LOCK(pElan);
pElan->Flags &= ~ELAN_MINIPORT_INIT_PENDING;
RELEASE_ELAN_LOCK(pElan);
DBGP((2, "%d MInitialize ELAN %p/%x, Ref %d, Status %x\n",
pElan->ElanNumber, pElan, pElan->Flags, pElan->RefCount, Status));
SIGNAL_BLOCK_STRUCT(&pElan->InitBlock, NDIS_STATUS_SUCCESS);
TRACEOUT(MInitialize);
return Status;
}
VOID
AtmLaneMSendPackets(
IN NDIS_HANDLE MiniportAdapterContext,
IN PPNDIS_PACKET PacketArray,
IN UINT NumberOfPackets
)
{
PATMLANE_ELAN pElan;
UINT PacketIndex;
PNDIS_PACKET pSendNdisPacket;
PNDIS_PACKET pNewNdisPacket;
PNDIS_BUFFER pHeaderNdisBuffer;
PUCHAR pHeaderBuffer;
PUCHAR pPktHeader;
PNDIS_BUFFER pTempNdisBuffer;
PATMLANE_VC pVc;
ULONG TotalLength;
ULONG BufferLength;
NDIS_STATUS Status;
ULONG DestAddrType;
MAC_ADDRESS DestAddress;
BOOLEAN SendViaBUS;
PATMLANE_MAC_ENTRY pMacEntry;
PATMLANE_ATM_ENTRY pAtmEntry;
ULONG rc;
#if DEBUG_IRQL
KIRQL EntryIrql;
#endif
GET_ENTRY_IRQL(EntryIrql);
TRACEIN(MSendPackets);
pElan = (PATMLANE_ELAN)MiniportAdapterContext;
STRUCT_ASSERT(pElan, atmlane_elan);
TRACELOGWRITE((&TraceLog, TL_MSENDPKTIN, NumberOfPackets));
DBGP((2, "MSendPackets: Count %d\n", NumberOfPackets));
//
// loop thru the array of packets to send
//
for (PacketIndex = 0; PacketIndex < NumberOfPackets; PacketIndex++)
{
pSendNdisPacket = PacketArray[PacketIndex];
pNewNdisPacket = (PNDIS_PACKET)NULL;
SendViaBUS = FALSE;
pMacEntry = NULL_PATMLANE_MAC_ENTRY;
pVc = NULL_PATMLANE_VC;
Status = NDIS_STATUS_PENDING;
// DBGP((0, "MSendPackets: Pkt %x\n", pSendNdisPacket));
TRACELOGWRITE((&TraceLog, TL_MSENDPKTBEGIN, PacketIndex, pSendNdisPacket));
TRACELOGWRITEPKT((&TraceLog, pSendNdisPacket));
//
// ALWAYS set packet status to NDIS_STATUS_PENDING
//
NDIS_SET_PACKET_STATUS(pSendNdisPacket, NDIS_STATUS_PENDING);
do
{
//
// Wrap it up for sending
//
pNewNdisPacket = AtmLaneWrapSendPacket(
pElan,
pSendNdisPacket,
&DestAddrType,
&DestAddress,
&SendViaBUS
);
if (pNewNdisPacket == (PNDIS_PACKET)NULL)
{
//
// Out of resources
//
Status = NDIS_STATUS_RESOURCES;
break;
}
//
// If Elan is down then just set local status to failure
//
if (ELAN_STATE_OPERATIONAL != pElan->State ||
ELAN_STATE_OPERATIONAL != pElan->AdminState)
{
DBGP((0, "%d Send failure on ELAN %x flags %x state %d AdminSt %d\n",
pElan->ElanNumber,
pElan,
pElan->Flags,
pElan->State,
pElan->AdminState));
Status = NDIS_STATUS_FAILURE;
break;
}
if (SendViaBUS)
{
//
// Packet is multicast so send it to the bus
//
ACQUIRE_ELAN_ATM_LIST_LOCK(pElan);
pAtmEntry = pElan->pBusAtmEntry;
if (pAtmEntry == NULL_PATMLANE_ATM_ENTRY)
{
RELEASE_ELAN_ATM_LIST_LOCK(pElan);
Status = NDIS_STATUS_FAILURE;
break;
}
ACQUIRE_ATM_ENTRY_LOCK_DPC(pAtmEntry);
pVc = pAtmEntry->pVcList;
if (pVc == NULL_PATMLANE_VC)
{
RELEASE_ATM_ENTRY_LOCK_DPC(pAtmEntry);
RELEASE_ELAN_ATM_LIST_LOCK(pElan);
Status = NDIS_STATUS_FAILURE;
break;
}
//
// Reference the VC to keep it around
//
ACQUIRE_VC_LOCK_DPC(pVc);
AtmLaneReferenceVc(pVc, "temp");
RELEASE_VC_LOCK_DPC(pVc);
RELEASE_ATM_ENTRY_LOCK_DPC(pAtmEntry);
RELEASE_ELAN_ATM_LIST_LOCK(pElan);
//
// Reacquire VC lock and dereference it
//
ACQUIRE_VC_LOCK(pVc);
rc = AtmLaneDereferenceVc(pVc, "temp");
if (rc == 0)
{
//
// Vc pulled out from under us.
//
Status = NDIS_STATUS_FAILURE;
break;
}
//
// Send it!
//
DBGP((2, "MSendPackets: Sending to BUS, VC %x\n", pVc));
AtmLaneSendPacketOnVc(pVc, pNewNdisPacket, FALSE);
//
// VC lock released in above
//
break;
}
//
// Packet is unicast
//
DBGP((2, "MSendPackets: Sending unicast, dest %x:%x:%x:%x:%x:%x\n",
((PUCHAR)&DestAddress)[0],
((PUCHAR)&DestAddress)[1],
((PUCHAR)&DestAddress)[2],
((PUCHAR)&DestAddress)[3],
((PUCHAR)&DestAddress)[4],
((PUCHAR)&DestAddress)[5]
));
Status = AtmLaneSendUnicastPacket(
pElan,
DestAddrType,
&DestAddress,
pNewNdisPacket
);
break;
}
while (FALSE);
//
// If no new packet header than it must be a resource failure
// or Elan is down.
// Complete the packet with NDIS_STATUS_SUCCESS.
//
if (pNewNdisPacket == (PNDIS_PACKET)NULL)
{
ASSERT(Status != NDIS_STATUS_PENDING);
// DBGP((0, "NdisMSendComplete: Pkt %x Stat %x\n", pSendNdisPacket, NDIS_STATUS_SUCCESS));
NdisMSendComplete(
pElan->MiniportAdapterHandle,
pSendNdisPacket,
NDIS_STATUS_SUCCESS);
TRACELOGWRITE((&TraceLog, TL_MSENDPKTEND, PacketIndex, pSendNdisPacket, Status));
continue;
}
//
// If status isn't pending then some other failure to send occurred.
// Complete the packet with NDIS_STATUS_SUCCESS.
//
if (Status != NDIS_STATUS_PENDING)
{
#if PROTECT_PACKETS
ACQUIRE_SENDPACKET_LOCK(pNewNdisPacket);
ASSERT((PSEND_RSVD(pNewNdisPacket)->Flags & PACKET_RESERVED_COSENDRETURNED) == 0);
ASSERT((PSEND_RSVD(pNewNdisPacket)->Flags & PACKET_RESERVED_COMPLETED) == 0);
PSEND_RSVD(pNewNdisPacket)->Flags |= PACKET_RESERVED_COSENDRETURNED;
PSEND_RSVD(pNewNdisPacket)->Flags |= PACKET_RESERVED_COMPLETED;
#endif // PROTECT_PACKETS
AtmLaneCompleteSendPacket(pElan, pNewNdisPacket, NDIS_STATUS_SUCCESS);
//
// packet lock released in above
//
TRACELOGWRITE((&TraceLog, TL_MSENDPKTEND, PacketIndex, pSendNdisPacket, Status));
continue;
}
//
// Otherwise do nothing
//
ASSERT(Status == NDIS_STATUS_PENDING);
TRACELOGWRITE((&TraceLog, TL_MSENDPKTEND, PacketIndex, pSendNdisPacket, Status));
} // for(...next packet
TRACELOGWRITE((&TraceLog, TL_MSENDPKTOUT));
TRACEOUT(MSendPackets);
CHECK_EXIT_IRQL(EntryIrql);
return;
}
VOID
AtmLaneMReturnPacket(
IN NDIS_HANDLE MiniportAdapterContext,
IN PNDIS_PACKET pNdisPacket
)
/*++
Routine Description:
This function is called by a protocol or by NDIS on
behalf of a protocol to return a packet that was
retained beyond the context of the receive indication.
Arguments:
MiniportAdapterContext - Pointer to ATMLANE elan structure
pNdisPacket - Pointer to NDIS packet
Return Value:
none.
--*/
{
PATMLANE_ELAN pElan;
PNDIS_PACKET pOrigNdisPacket;
PNDIS_BUFFER pTempNdisBuffer;
ULONG Length;
#if DEBUG_IRQL
KIRQL EntryIrql;
#endif
GET_ENTRY_IRQL(EntryIrql);
TRACEIN(MReturnPacket);
pElan = (PATMLANE_ELAN)MiniportAdapterContext;
STRUCT_ASSERT(pElan, atmlane_elan);
TRACELOGWRITE((&TraceLog,
TL_MRETNPACKET,
pNdisPacket));
ASSERT(NDIS_GET_PACKET_STATUS(pNdisPacket) != NDIS_STATUS_RESOURCES);
pOrigNdisPacket = AtmLaneUnwrapRecvPacket(pElan, pNdisPacket);
TRACELOGWRITE((&TraceLog,
TL_CORETNPACKET,
pOrigNdisPacket));
//
// Return original packet to ATM miniport.
//
NdisReturnPackets(
&pOrigNdisPacket,
1);
TRACEOUT(MReturnPacket);
CHECK_EXIT_IRQL(EntryIrql);
return;
}
NDIS_STATUS
AtmLaneMQueryInformation(
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesWritten,
OUT PULONG BytesNeeded
)
/*++
Routine Description:
The QueryInformation Handler for the virtual miniport.
Arguments:
MiniportAdapterContext - a pointer to the Elan.
Oid - the NDIS_OID to process.
InformationBuffer - a pointer into the NdisRequest->InformationBuffer
into which store the result of the query.
InformationBufferLength - a pointer to the number of bytes left in the
InformationBuffer.
BytesWritten - a pointer to the number of bytes written into the
InformationBuffer.
BytesNeeded - If there is not enough room in the information
buffer then this will contain the number of bytes
needed to complete the request.
Return Value:
The function value is the status of the operation.
--*/
{
UINT BytesLeft = InformationBufferLength;
PUCHAR InfoBuffer = (PUCHAR)(InformationBuffer);
NDIS_STATUS StatusToReturn = NDIS_STATUS_SUCCESS;
NDIS_HARDWARE_STATUS HardwareStatus = NdisHardwareStatusReady;
NDIS_MEDIA_STATE MediaState;
NDIS_MEDIUM Medium;
PATMLANE_ELAN pElan;
PATMLANE_ADAPTER pAdapter;
ULONG GenericULong;
USHORT GenericUShort;
UCHAR GenericArray[6];
UINT MoveBytes = sizeof(ULONG);
PVOID MoveSource = (PVOID)(&GenericULong);
ULONG i;
PATMLANE_MAC_ENTRY pMacEntry;
PATMLANE_ATM_ENTRY pAtmEntry;
BOOLEAN IsShuttingDown;
#if DEBUG_IRQL
KIRQL EntryIrql;
#endif
GET_ENTRY_IRQL(EntryIrql);
TRACEIN(MQueryInformation);
pElan = (PATMLANE_ELAN)MiniportAdapterContext;
STRUCT_ASSERT(pElan, atmlane_elan);
DBGP((1, "%d Query OID %x %s\n", pElan->ElanNumber, Oid, OidToString(Oid)));
ACQUIRE_ELAN_LOCK(pElan);
IsShuttingDown = (ELAN_STATE_OPERATIONAL != pElan->AdminState);
pAdapter = pElan->pAdapter;
RELEASE_ELAN_LOCK(pElan);
//
// Switch on request type
//
switch (Oid)
{
case OID_GEN_MAC_OPTIONS:
GenericULong =
NDIS_MAC_OPTION_NO_LOOPBACK;
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_SUPPORTED_LIST:
if (pElan->LanType == LANE_LANTYPE_ETH)
{
MoveSource = (PVOID)(EthernetSupportedOids);
MoveBytes = sizeof(EthernetSupportedOids);
}
else
{
MoveSource = (PVOID)(TokenRingSupportedOids);
MoveBytes = sizeof(TokenRingSupportedOids);
}
break;
case OID_GEN_HARDWARE_STATUS:
HardwareStatus = NdisHardwareStatusReady;
MoveSource = (PVOID)(&HardwareStatus);
MoveBytes = sizeof(NDIS_HARDWARE_STATUS);
break;
case OID_GEN_MEDIA_CONNECT_STATUS:
if (ELAN_STATE_OPERATIONAL == pElan->State)
{
MediaState = NdisMediaStateConnected;
}
else
{
MediaState = NdisMediaStateDisconnected;
}
DBGP((2, "%d Elan %p returning conn status %d: %s\n",
pElan->ElanNumber,
pElan,
MediaState,
((MediaState == NdisMediaStateConnected)?
"Connected": "Disconnected")));
MoveSource = (PVOID)(&MediaState);
MoveBytes = sizeof(NDIS_MEDIA_STATE);
break;
case OID_GEN_MEDIA_SUPPORTED:
case OID_GEN_MEDIA_IN_USE:
if (pElan->LanType == LANE_LANTYPE_ETH)
{
Medium = NdisMedium802_3;
DBGP((2, "Media is NdisMedium802_3\n"));
}
else
{
Medium = NdisMedium802_5;
DBGP((2, "Media is NdisMedium802_5\n"));
}
MoveSource = (PVOID) (&Medium);
MoveBytes = sizeof(NDIS_MEDIUM);
break;
case OID_GEN_MAXIMUM_LOOKAHEAD:
if (pAdapter != NULL_PATMLANE_ADAPTER)
{
GenericULong = pElan->pAdapter->MaxAAL5PacketSize;
}
else
{
GenericULong = pElan->CurLookAhead;
}
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_CURRENT_LOOKAHEAD:
if (pElan->CurLookAhead == 0)
{
if (pAdapter != NULL_PATMLANE_ADAPTER)
{
pElan->CurLookAhead = pAdapter->MaxAAL5PacketSize;
}
}
GenericULong = pElan->CurLookAhead;
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_MAXIMUM_FRAME_SIZE:
GenericULong = (pElan->MaxFrameSize - LANE_ETH_HEADERSIZE);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_MAXIMUM_TOTAL_SIZE:
GenericULong = (pElan->MaxFrameSize - LANE_HEADERSIZE);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_TRANSMIT_BLOCK_SIZE:
GenericULong = (pElan->MaxFrameSize - LANE_HEADERSIZE);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_RECEIVE_BLOCK_SIZE:
GenericULong = (pElan->MaxFrameSize - LANE_HEADERSIZE);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_MAXIMUM_SEND_PACKETS:
GenericULong = 32; // XXX What is our limit? From adapter?
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_LINK_SPEED:
if (pAdapter != NULL_PATMLANE_ADAPTER)
{
GenericULong = pElan->pAdapter->LinkSpeed.Outbound;
}
else
{
GenericULong = ATM_USER_DATA_RATE_SONET_155;
}
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_TRANSMIT_BUFFER_SPACE:
case OID_GEN_RECEIVE_BUFFER_SPACE:
GenericULong = 32 * 1024; // XXX What should this really be?
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_VENDOR_ID:
NdisMoveMemory(
(PVOID)&GenericULong,
&pElan->MacAddressEth,
3
);
GenericULong &= 0xFFFFFF00;
MoveSource = (PVOID)(&GenericULong);
MoveBytes = sizeof(GenericULong);
break;
case OID_GEN_VENDOR_DESCRIPTION:
MoveSource = (PVOID)"Microsoft ATM LAN Emulation";
MoveBytes = 28;
break;
case OID_GEN_DRIVER_VERSION:
case OID_GEN_VENDOR_DRIVER_VERSION:
GenericUShort = ((USHORT)5 << 8) | 0;
MoveSource = (PVOID)(&GenericUShort);
MoveBytes = sizeof(GenericUShort);
DBGP((2, "Value %x\n", GenericUShort));
break;
case OID_802_3_PERMANENT_ADDRESS:
case OID_802_3_CURRENT_ADDRESS:
NdisMoveMemory((PCHAR)GenericArray,
&pElan->MacAddressEth,
sizeof(MAC_ADDRESS));
MoveSource = (PVOID)(GenericArray);
MoveBytes = sizeof(MAC_ADDRESS);
DBGP((1, "%d Address is %s\n", pElan->ElanNumber,
MacAddrToString(MoveSource)));
break;
case OID_802_5_PERMANENT_ADDRESS:
case OID_802_5_CURRENT_ADDRESS:
NdisMoveMemory((PCHAR)GenericArray,
&pElan->MacAddressTr,
sizeof(MAC_ADDRESS));
MoveSource = (PVOID)(GenericArray);
MoveBytes = sizeof(MAC_ADDRESS);
DBGP((1, "%d Address is %s\n", pElan->ElanNumber,
MacAddrToString(MoveSource)));
break;
case OID_802_3_MULTICAST_LIST:
MoveSource = (PVOID) &pElan->McastAddrs[0];
MoveBytes = pElan->McastAddrCount * sizeof(MAC_ADDRESS);
break;
case OID_802_3_MAXIMUM_LIST_SIZE:
GenericULong = MCAST_LIST_SIZE;
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_802_5_CURRENT_FUNCTIONAL:
case OID_802_5_CURRENT_GROUP:
NdisZeroMemory((PCHAR)GenericArray,
sizeof(MAC_ADDRESS));
MoveSource = (PVOID)(GenericArray);
MoveBytes = sizeof(MAC_ADDRESS);
DBGP((2, "Address is %s\n", MacAddrToString(MoveSource)));
break;
case OID_802_5_LAST_OPEN_STATUS:
case OID_802_5_CURRENT_RING_STATUS:
case OID_802_5_CURRENT_RING_STATE:
GenericULong = 0;
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_XMIT_OK:
GenericULong = (UINT)(pElan->FramesXmitGood);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_RCV_OK:
GenericULong = (UINT)(pElan->FramesRecvGood);
DBGP((2, "Value %d\n", GenericULong));
break;
case OID_GEN_XMIT_ERROR:
case OID_GEN_RCV_ERROR:
case OID_GEN_RCV_NO_BUFFER:
case OID_802_3_RCV_ERROR_ALIGNMENT:
case OID_802_3_XMIT_ONE_COLLISION:
case OID_802_3_XMIT_MORE_COLLISIONS:
case OID_802_5_LINE_ERRORS:
case OID_802_5_LOST_FRAMES:
case OID_802_5_BURST_ERRORS:
case OID_802_5_FRAME_COPIED_ERRORS:
case OID_802_5_TOKEN_ERRORS:
GenericULong = 0;
DBGP((2, "Value %d\n", GenericULong));
break;
default:
StatusToReturn = NDIS_STATUS_INVALID_OID;
break;
}
if (StatusToReturn == NDIS_STATUS_SUCCESS)
{
if (MoveBytes > BytesLeft)
{
//
// Not enough room in InformationBuffer. Punt
//
*BytesNeeded = MoveBytes;
*BytesWritten = 0;
StatusToReturn = NDIS_STATUS_INVALID_LENGTH;
}
else
{
//
// Store result.
//
NdisMoveMemory(InfoBuffer, MoveSource, MoveBytes);
*BytesWritten = MoveBytes;
}
}
DBGP((2, "Query Status %x\n", StatusToReturn));
TRACEOUT(MQueryInformation);
CHECK_EXIT_IRQL(EntryIrql);
return StatusToReturn;
}
NDIS_STATUS
AtmLaneMSetInformation(
IN NDIS_HANDLE MiniportAdapterContext,
IN NDIS_OID Oid,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesRead,
OUT PULONG BytesNeeded
)
/*++
Routine Description:
Handles a set operation for a single OID.
Arguments:
MiniportAdapterContext - a pointer to the Elan.
Oid - the NDIS_OID to process.
InformationBuffer - Holds the data to be set.
InformationBufferLength - The length of InformationBuffer.
BytesRead - If the call is successful, returns the number
of bytes read from InformationBuffer.
BytesNeeded - If there is not enough data in InformationBuffer
to satisfy the OID, returns the amount of storage
needed.
Return Value:
NDIS_STATUS_SUCCESS
NDIS_STATUS_PENDING
NDIS_STATUS_INVALID_LENGTH
NDIS_STATUS_INVALID_OID
--*/
{
NDIS_STATUS StatusToReturn = NDIS_STATUS_SUCCESS;
UINT BytesLeft = InformationBufferLength;
PUCHAR InfoBuffer = (PUCHAR)(InformationBuffer);
UINT OidLength;
ULONG LookAhead;
ULONG Filter;
PATMLANE_ELAN pElan;
BOOLEAN IsShuttingDown;
#if DEBUG_IRQL
KIRQL EntryIrql;
#endif
GET_ENTRY_IRQL(EntryIrql);
TRACEIN(MSetInformation);
pElan = (PATMLANE_ELAN)MiniportAdapterContext;
STRUCT_ASSERT(pElan, atmlane_elan);
DBGP((1, "%d Set OID %x %s\n", pElan->ElanNumber, Oid, OidToString(Oid)));
ACQUIRE_ELAN_LOCK(pElan);
IsShuttingDown = (ELAN_STATE_OPERATIONAL != pElan->AdminState);
RELEASE_ELAN_LOCK(pElan);
if (IsShuttingDown)
{
DBGP((1, "%d ELAN shutting down. Trivially succeeding Set OID %x %s\n",
pElan->ElanNumber, Oid, OidToString(Oid)));
*BytesRead = 0;
*BytesNeeded = 0;
StatusToReturn = NDIS_STATUS_SUCCESS;
return (StatusToReturn);
}
//
// Get Oid and Length of request
//
OidLength = BytesLeft;
switch (Oid)
{
case OID_802_3_MULTICAST_LIST:
if (OidLength % sizeof(MAC_ADDRESS))
{
StatusToReturn = NDIS_STATUS_INVALID_LENGTH;
*BytesRead = 0;
*BytesNeeded = 0;
break;
}
if (OidLength > (MCAST_LIST_SIZE * sizeof(MAC_ADDRESS)))
{
StatusToReturn = NDIS_STATUS_MULTICAST_FULL;
*BytesRead = 0;
*BytesNeeded = 0;
break;
}
NdisZeroMemory(
&pElan->McastAddrs[0],
MCAST_LIST_SIZE * sizeof(MAC_ADDRESS)
);
NdisMoveMemory(
&pElan->McastAddrs[0],
InfoBuffer,
OidLength
);
pElan->McastAddrCount = OidLength / sizeof(MAC_ADDRESS);
#if DBG
{
ULONG i;
for (i = 0; i < pElan->McastAddrCount; i++)
{
DBGP((2, "%s\n", MacAddrToString(&pElan->McastAddrs[i])));
}
}
#endif // DBG
break;
case OID_GEN_CURRENT_PACKET_FILTER:
//
// Verify length
//
if (OidLength != sizeof(ULONG))
{
StatusToReturn = NDIS_STATUS_INVALID_LENGTH;
*BytesRead = 0;
*BytesNeeded = sizeof(ULONG);
break;
}
//
// Store the new value.
//
NdisMoveMemory(&Filter, InfoBuffer, sizeof(ULONG));
//
// Don't allow promisc mode, because we can't support that.
//
if (Filter & NDIS_PACKET_TYPE_PROMISCUOUS)
{
StatusToReturn = NDIS_STATUS_NOT_SUPPORTED;
break;
}
ACQUIRE_ELAN_LOCK(pElan);
pElan->CurPacketFilter = Filter;
//
// Mark Miniport Running if not already
//
if ((pElan->Flags & ELAN_MINIPORT_OPERATIONAL) == 0)
{
pElan->Flags |= ELAN_MINIPORT_OPERATIONAL;
DBGP((1, "%d Miniport OPERATIONAL\n", pElan->ElanNumber));
}
RELEASE_ELAN_LOCK(pElan);
DBGP((2, "CurPacketFilter now %x\n", Filter));
break;
case OID_802_5_CURRENT_FUNCTIONAL:
case OID_802_5_CURRENT_GROUP:
// XXX just accept whatever for now ???
break;
case OID_GEN_CURRENT_LOOKAHEAD:
//
// Verify length
//
if (OidLength != 4)
{
StatusToReturn = NDIS_STATUS_INVALID_LENGTH;
*BytesRead = 0;
*BytesNeeded = 0;
break;
}
//
// Store the new value.
//
NdisMoveMemory(&LookAhead, InfoBuffer, 4);
if ((pElan->pAdapter == NULL_PATMLANE_ADAPTER) ||
(LookAhead <= pElan->pAdapter->MaxAAL5PacketSize))
{
pElan->CurLookAhead = LookAhead;
DBGP((2, "CurLookAhead now %d\n", LookAhead));
}
else
{
StatusToReturn = NDIS_STATUS_INVALID_LENGTH;
}
break;
case OID_GEN_NETWORK_LAYER_ADDRESSES:
StatusToReturn = AtmLaneMSetNetworkAddresses(
pElan,
InformationBuffer,
InformationBufferLength,
BytesRead,
BytesNeeded);
break;
default:
StatusToReturn = NDIS_STATUS_INVALID_OID;
*BytesRead = 0;
*BytesNeeded = 0;
break;
}
if (StatusToReturn == NDIS_STATUS_SUCCESS)
{
*BytesRead = BytesLeft;
*BytesNeeded = 0;
}
DBGP((2, "Set Status %x\n", StatusToReturn));
TRACEOUT(MSetInformation);
CHECK_EXIT_IRQL(EntryIrql);
return StatusToReturn;
}
NDIS_STATUS
AtmLaneMReset(
OUT PBOOLEAN AddressingReset,
IN NDIS_HANDLE MiniportAdapterContext
)
{
TRACEIN(MReset);
TRACEOUT(MReset);
return NDIS_STATUS_NOT_RESETTABLE;
}
VOID
AtmLaneMHalt(
IN NDIS_HANDLE MiniportAdapterContext
)
{
PATMLANE_ELAN pElan;
ULONG rc;
#if DEBUG_IRQL
KIRQL EntryIrql;
#endif
GET_ENTRY_IRQL(EntryIrql);
TRACEIN(MHalt);
pElan = (PATMLANE_ELAN)MiniportAdapterContext;
STRUCT_ASSERT(pElan, atmlane_elan);
ACQUIRE_ELAN_LOCK(pElan);
DBGP((1, "%d MHalt pElan %x, ref count %d, Admin state %d, State %d\n",
pElan->ElanNumber, pElan, pElan->RefCount, pElan->AdminState, pElan->State));
pElan->MiniportAdapterHandle = NULL;
rc = AtmLaneDereferenceElan(pElan, "miniport"); // Miniport handle is gone.
if (rc != 0)
{
AtmLaneShutdownElan(pElan, FALSE);
// lock released in above
}
//
// else the Elan is gone.
//
TRACEOUT(MHalt);
CHECK_EXIT_IRQL(EntryIrql);
return;
}
PNDIS_PACKET
AtmLaneWrapSendPacket(
IN PATMLANE_ELAN pElan,
IN PNDIS_PACKET pSendNdisPacket,
OUT ULONG * pAddressType,
OUT PMAC_ADDRESS pDestAddress,
OUT BOOLEAN * pSendViaBUS
)
/*++
Routine Description:
This function repackages a protocol sent NDIS packet.
It puts on a new NDIS packet header and a buffer for
the LANE header. It saves away the original packet
header in the ProtocolReserved area of the new packet header.
Additionally, it determines if packet is to be sent via
the BUS and the destination address of the packet.
Arguments:
pElan - Pointer to ATMLANE elan structure
pSendNdisPacket - Pointer to NDIS packet
pAddressType - Pointer to ULONG that gets one of
(LANE_MACADDRTYPE_MACADDR,
LANE_MACADDRTYPE_ROUTEDESCR).
pDestAddress - Pointer to 6-byte buffer that gets
destination address.
pSendViaBus - Pointer to boolean
Return Value:
New NDIS packet header or NULL if out of resources.
--*/
{
PNDIS_PACKET pNewNdisPacket;
PNDIS_BUFFER pTempNdisBuffer;
PUCHAR pHeaderBuffer;
PUCHAR pNewHeaderBuffer;
PUCHAR pNewPadBuffer;
ULONG BufferLength;
ULONG TotalLength;
PNDIS_BUFFER pHeaderNdisBuffer;
PNDIS_BUFFER pPadNdisBuffer;
NDIS_STATUS Status;
PSEND_PACKET_RESERVED pNewPacketContext;
ULONG OrigBufferCount;
ULONG WrappedBufferCount;
ULONG RILength;
BOOLEAN DirectionBit;
PUCHAR pCurRouteDescr;
PUCHAR pNextRouteDescr;
TRACEIN(WrapSendPacket);
//
// Initialize
//
pNewNdisPacket = (PNDIS_PACKET)NULL;
pHeaderNdisBuffer = (PNDIS_BUFFER)NULL;
pPadNdisBuffer = (PNDIS_BUFFER)NULL;
Status = NDIS_STATUS_SUCCESS;
OrigBufferCount = 0;
WrappedBufferCount = 0;
do
{
//
// Get first buffer and total length of packet
//
NdisGetFirstBufferFromPacket(
pSendNdisPacket,
&pTempNdisBuffer,
&pHeaderBuffer,
&BufferLength,
&TotalLength);
DBGP((3, "WrapSendPacket: SendPkt %x Length %d\n",
pSendNdisPacket, TotalLength));
ASSERT(pTempNdisBuffer != NULL);
//
// Allocate a new transmit packet descriptor
//
NdisAllocatePacket(&Status, &pNewNdisPacket, pElan->TransmitPacketPool);
if (Status != NDIS_STATUS_SUCCESS)
{
DBGP((0, "WrapSendPacket: Alloc xmit NDIS Packet failed\n"));
Status = NDIS_STATUS_RESOURCES;
break;
}
#if PKT_HDR_COUNTS
InterlockedDecrement(&pElan->XmitPktCount);
if ((pElan->XmitPktCount % 20) == 0)
{
DBGP((1, "XmitPktCount %d\n", pElan->XmitPktCount));
}
#endif
//
// Allocate a Header Buffer
//
pHeaderNdisBuffer = AtmLaneAllocateHeader(pElan, &pNewHeaderBuffer);
if (pHeaderNdisBuffer == (PNDIS_BUFFER)NULL)
{
DBGP((0, "WrapSendPacket: Alloc Header Buffer failed\n"));
Status = NDIS_STATUS_RESOURCES;
break;
}
//
// Spec says we can put zero or our LECID in the header.
// We'll put our LECID in the header for echo-filtering purposes.
//
ASSERT(pElan->HeaderBufSize == LANE_HEADERSIZE);
*((PUSHORT)pNewHeaderBuffer) = pElan->LecId;
//
// Allocate a pad buffer now, if necessary, before we get all tied
// up in knots.
//
if ((TotalLength + LANE_HEADERSIZE) < pElan->MinFrameSize)
{
pPadNdisBuffer = AtmLaneAllocatePadBuf(pElan, &pNewPadBuffer);
if (pPadNdisBuffer == (PNDIS_BUFFER)NULL)
{
DBGP((0, "WrapSendPacket: Alloc Pad Buffer failed\n"));
Status = NDIS_STATUS_RESOURCES;
break;
}
}
//
// Put new header buffer at head of new NDIS Packet
//
NdisChainBufferAtFront(pNewNdisPacket, pHeaderNdisBuffer);
WrappedBufferCount++;
//
// Chain buffers from send packet onto tail of new NDIS Packet
//
do
{
NdisUnchainBufferAtFront(pSendNdisPacket, &pTempNdisBuffer);
if (pTempNdisBuffer == (PNDIS_BUFFER)NULL)
break;
ASSERT(pTempNdisBuffer->Next == NULL);
OrigBufferCount++;
NdisChainBufferAtBack(pNewNdisPacket, pTempNdisBuffer);
WrappedBufferCount++;
}
while (TRUE);
//
// Chain pad buffer on tail if needed (it would be allocated already)
//
if (pPadNdisBuffer != (PNDIS_BUFFER)NULL)
{
NdisChainBufferAtBack(pNewNdisPacket, pPadNdisBuffer);
WrappedBufferCount++;
//
// Set size of pad buffer to minimum necessary
//
NdisAdjustBufferLength(pPadNdisBuffer,
pElan->MinFrameSize - TotalLength - LANE_HEADERSIZE);
}
//
// Save away pointer to original NDIS Packet header in reserved
// area of our new NDIS Packet header.
//
// NOTE use of ProtocolReserved in this case!
//
// Also set Owner and Multicast flags appropriately.
//
pNewPacketContext =
(PSEND_PACKET_RESERVED)&pNewNdisPacket->ProtocolReserved;
NdisZeroMemory(pNewPacketContext, sizeof(SEND_PACKET_RESERVED));
#if PROTECT_PACKETS
INIT_SENDPACKET_LOCK(pNewNdisPacket);
#endif // PROTECT_PACKETS
#if DBG
pNewPacketContext->Signature = 'ENAL';
#endif
pNewPacketContext->pOrigNdisPacket = pSendNdisPacket;
pNewPacketContext->OrigBufferCount = OrigBufferCount;
pNewPacketContext->OrigPacketLength = TotalLength;
pNewPacketContext->WrappedBufferCount = WrappedBufferCount;
SET_FLAG(
pNewPacketContext->Flags,
PACKET_RESERVED_OWNER_MASK,
PACKET_RESERVED_OWNER_PROTOCOL
);
ASSERT(pNewPacketContext->Flags == PACKET_RESERVED_OWNER_PROTOCOL);
//
// Branch on Ethernet v.s. Token Ring to sniff pkt contents
//
if (pElan->LanType == LANE_LANTYPE_ETH)
{
// Send packet via BUS if it has a multicast
// Destination Address. If low-order bit in
// first byte of the Destination Address is set then
// it's a multicast or broadcast address.
// Destination Address is first in packet header and it's
// always a MAC address.
//
*pSendViaBUS = ((*pHeaderBuffer) & 1) != 0;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer, 6);
}
else
{
ASSERT(pElan->LanType == LANE_LANTYPE_TR);
//
// now the very complicated sorting of TR packets
//
do
{
//
// Section 8.5.3 of LANE Specification.
// Multicast frames go to the BUS.
//
if ((*(pHeaderBuffer+2) & 0x80) != 0) // DA multicast bit present?
{
*pSendViaBUS = TRUE;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer+2, 6);
break;
}
//
// Section 8.5.2 of LANE Specification.
// NSR frames go to destination address.
//
if ( (*(pHeaderBuffer+8) & 0x80) == 0) // SA RI bit not present?
{
*pSendViaBUS = FALSE;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer+2, 6);
break;
}
//
// Section 8.5.4 of LANE Specification.
// ARE or STE frames go to the BUS.
//
if ( ((*(pHeaderBuffer+8) & 0x80) != 0) && // SA RI bit present and
((*(pHeaderBuffer+14) & 0xe0) !=0) ) // RI type field upper bits on?
{
*pSendViaBUS = TRUE;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer+2, 6);
break;
}
//
// Frame is source routed so extract Routing Information (RI) length.
//
RILength = *(pHeaderBuffer+14) & 0x1f;
//
// Section 8.5.7 of LANE Specification.
// SR frame with a RI length less than 6 contains no hops.
// Send to destination address.
//
if (RILength < 6)
{
*pSendViaBUS = FALSE;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer+2, 6);
break;
}
//
// Section 8.5.6 of LANE Specification.
// Odd RILength is invalid, we choose to send via BUS.
//
if ((RILength & 1) != 0)
{
*pSendViaBUS = FALSE;
*pAddressType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddress, pHeaderBuffer+2, 6);
break;
}
//
// Section 8.5.5 of LANE Specification.
// At this point we have a SR frame with RI Length >= 6;
// We are never a bridge so frame should go to "next RD".
//
*pSendViaBUS = FALSE;
*pAddressType = LANE_MACADDRTYPE_ROUTEDESCR;
NdisZeroMemory(pDestAddress, 4);
DirectionBit = (*(pHeaderBuffer+15) & 0x80) != 0;
if (DirectionBit)
{
//
// Frame is traversing LAN in reverse order of RDs.
// "next RD" is the next-to-last RD in the packet.
// Use Segment ID and Bridge Num from this RD.
//
pNextRouteDescr = pHeaderBuffer+14+RILength-4;
pDestAddress->Byte[4] = pNextRouteDescr[0];
pDestAddress->Byte[5] = pNextRouteDescr[1];
}
else
{
//
// Frame is traversing LAN in the order of the RDs.
// "next RD" straddles the first and second RD in the packet.
// Use Segment ID from second RD and Bridge Num from first RD.
//
pCurRouteDescr = pHeaderBuffer+14+2; // first RD
pNextRouteDescr = pHeaderBuffer+14+4; // second RD
pDestAddress->Byte[4] = pNextRouteDescr[0];
pDestAddress->Byte[5] = (pNextRouteDescr[1] & 0xf0) | (pCurRouteDescr[1] & 0x0f);
}
break;
}
while (FALSE);
}
NdisQueryPacket(pNewNdisPacket, NULL, NULL, NULL, &TotalLength);
DBGP((3, "WrapSendPacket: SendPkt %x NewPkt %x Bufs %d Length %d\n",
pSendNdisPacket, pNewNdisPacket, WrappedBufferCount, TotalLength));
TRACELOGWRITE((&TraceLog,
TL_WRAPSEND,
pSendNdisPacket,
pNewNdisPacket,
WrappedBufferCount,
TotalLength));
TRACELOGWRITEPKT((&TraceLog, pNewNdisPacket));
break;
}
while (FALSE);
if (Status != NDIS_STATUS_SUCCESS)
{
if (pNewNdisPacket != (PNDIS_PACKET)NULL)
{
#if PROTECT_PACKETS
FREE_SENDPACKET_LOCK(pNewNdisPacket);
#endif // PROTECT_PACKETS
NdisFreePacket(pNewNdisPacket);
pNewNdisPacket = (PNDIS_PACKET)NULL;
#if PKT_HDR_COUNTS
InterlockedIncrement(&pElan->XmitPktCount);
if ((pElan->XmitPktCount % 20) == 0 &&
pElan->XmitPktCount != pElan->MaxHeaderBufs)
{
DBGP((1, "XmitPktCount %d\n", pElan->XmitPktCount));
}
#endif
}
if (pHeaderNdisBuffer != (PNDIS_BUFFER)NULL)
{
AtmLaneFreeHeader(pElan, pHeaderNdisBuffer, FALSE);
pHeaderNdisBuffer = (PNDIS_BUFFER)NULL;
}
if (pPadNdisBuffer != (PNDIS_BUFFER)NULL)
{
AtmLaneFreePadBuf(pElan, pPadNdisBuffer, FALSE);
pPadNdisBuffer = (PNDIS_BUFFER)NULL;
}
}
TRACEOUT(WrapSendPacket);
return pNewNdisPacket;
}
PNDIS_PACKET
AtmLaneUnwrapSendPacket(
IN PATMLANE_ELAN pElan,
IN PNDIS_PACKET pNdisPacket LOCKIN NOLOCKOUT
)
/*++
Routine Description:
This function basically undoes what AtmLaneWrapSendPacket
does. It removes the new NDIS packet header and the LANE
header and frees them. It restores the original packet header.
Arguments:
pElan - Pointer to ATMLANE elan structure
pNdisPacket - Pointer to NDIS packet
Return Value:
Original NDIS packet header.
--*/
{
PSEND_PACKET_RESERVED pPacketContext;
UINT TotalLength;
PNDIS_PACKET pOrigNdisPacket;
PNDIS_BUFFER pTempNdisBuffer;
ULONG OrigPacketLength;
ULONG OrigBufferCount;
ULONG WrappedBufferCount;
ULONG BufferCount;
BOOLEAN First;
TRACEIN(UnwrapSendPacket);
//
// Get original packet header from reserved area.
//
pPacketContext = PSEND_RSVD(pNdisPacket);
pOrigNdisPacket = pPacketContext->pOrigNdisPacket;
OrigBufferCount = pPacketContext->OrigBufferCount;
OrigPacketLength = pPacketContext->OrigPacketLength;
WrappedBufferCount = pPacketContext->WrappedBufferCount;
ASSERT(pPacketContext->Signature == 'ENAL');
ASSERT((pPacketContext->Flags & PACKET_RESERVED_OWNER_PROTOCOL) != 0);
ASSERT(pPacketContext->pOrigNdisPacket != NULL);
//
// Unchain first buffer (ours) and free it.
//
pTempNdisBuffer = (PNDIS_BUFFER)NULL;
NdisUnchainBufferAtFront(pNdisPacket, &pTempNdisBuffer);
ASSERT(pTempNdisBuffer != (PNDIS_BUFFER)NULL);
AtmLaneFreeHeader(pElan, pTempNdisBuffer, FALSE);
//
// If padded, unchain last buffer (ours) and free it.
//
if ((WrappedBufferCount - OrigBufferCount) > 1)
{
pTempNdisBuffer = (PNDIS_BUFFER)NULL;
NdisUnchainBufferAtBack(pNdisPacket, &pTempNdisBuffer);
ASSERT(pTempNdisBuffer != (PNDIS_BUFFER)NULL);
AtmLaneFreePadBuf(pElan, pTempNdisBuffer, FALSE);
}
//
// Put rest of buffers back on original packet header.
//
First = TRUE;
BufferCount = 0;
do
{
NdisUnchainBufferAtFront(pNdisPacket, &pTempNdisBuffer);
ASSERT(!((pTempNdisBuffer == NULL) && First));
First = FALSE;
if (pTempNdisBuffer == (PNDIS_BUFFER)NULL)
break;
NdisChainBufferAtBack(pOrigNdisPacket, pTempNdisBuffer);
BufferCount++;
}
while (TRUE);
NdisQueryPacket(pOrigNdisPacket, NULL, NULL, NULL, &TotalLength);
DBGP((3, "UnwrapSendPacket: SendPkt %x Bufcnt %d Length %d\n",
pOrigNdisPacket, BufferCount, TotalLength));
TRACELOGWRITE((&TraceLog,
TL_UNWRAPSEND,
pNdisPacket,
pOrigNdisPacket,
BufferCount,
TotalLength));
TRACELOGWRITEPKT((&TraceLog, pOrigNdisPacket));
ASSERT(OrigBufferCount == BufferCount);
// ASSERT(OrigPacketLength == TotalLength);
//
// Free the packet header
//
#if PROTECT_PACKETS
RELEASE_SENDPACKET_LOCK(pNdisPacket);
FREE_SENDPACKET_LOCK(pNdisPacket);
#endif // PROTECT_PACKETS
NdisFreePacket(pNdisPacket);
#if PKT_HDR_COUNTS
InterlockedIncrement(&pElan->XmitPktCount);
if ((pElan->XmitPktCount % 20) == 0 &&
pElan->XmitPktCount != pElan->MaxHeaderBufs)
{
DBGP((1, "XmitPktCount %d\n", pElan->XmitPktCount));
}
#endif
TRACEOUT(UnwrapSendPacket);
return pOrigNdisPacket;
}
PNDIS_PACKET
AtmLaneWrapRecvPacket(
IN PATMLANE_ELAN pElan,
IN PNDIS_PACKET pRecvNdisPacket,
OUT ULONG * pMacHdrSize,
OUT ULONG * pDestAddrType,
OUT PMAC_ADDRESS pDestAddr,
OUT BOOLEAN * pDestIsMulticast
)
/*++
Routine Description:
This function repackages an adapter received NDIS packet.
It puts on a new packet header and creates a new buffer
descriptor for the first fragment that skips the 2-byte
LANE header. It then saves away the original packet
header with the original first buffer descriptor in the
MiniportReserved area of the new packet header.
Additionally, it outputs the destination address, the
destination's address type if the packet is a destination
address is a multicast address.
Arguments:
pElan - Pointer to ATMLANE elan structure
pRecvNdisPacket - Pointer to NDIS packet
pMacHdrSize - Pointer to ULONG that get the length
of the MAC header.
pDestAddrType - Pointer to ULONG that gets one of
(LANE_MACADDRTYPE_MACADDR,
LANE_MACADDRTYPE_ROUTEDESCR).
pDestAddr - Pointer to 6-byte buffer that gets
destination address.
pDestIsMulticast - Pointer to boolean that gets TRUE if
destination address is a multicast.
Return Value:
New NDIS packet header or NULL if out of resources.
--*/
{
ULONG TotalLength;
ULONG TempLength;
PUCHAR pHeaderBuffer;
PUCHAR pBuffer;
PNDIS_PACKET pNewNdisPacket;
PNDIS_BUFFER pFirstNdisBuffer;
PNDIS_BUFFER pTempNdisBuffer;
PNDIS_BUFFER pNewNdisBuffer;
PUCHAR pTempBuffer;
PRECV_PACKET_RESERVED pNewPacketContext;
NDIS_STATUS Status;
ULONG BufferCount;
TRACEIN(WrapRecvPacket);
//
// Initialize
//
pNewNdisPacket = (PNDIS_PACKET)NULL;
pNewNdisBuffer = (PNDIS_BUFFER)NULL;
Status = NDIS_STATUS_SUCCESS;
BufferCount = 0;
do
{
//
// Get first buffer and total length of packet
//
NdisGetFirstBufferFromPacket(
pRecvNdisPacket,
&pTempNdisBuffer,
&pHeaderBuffer,
&TempLength,
&TotalLength);
DBGP((3, "WrapRecvPacket: RecvPkt %x Length %d\n",
pRecvNdisPacket, TotalLength));
//
// Allocate a new recv packet descriptor
//
NdisAllocatePacket(&Status, &pNewNdisPacket, pElan->ReceivePacketPool);
if (Status != NDIS_STATUS_SUCCESS)
{
DBGP((0, "WrapRecvPacket: Alloc recv NDIS Packet failed\n"));
break;
}
#if PKT_HDR_COUNTS
InterlockedDecrement(&pElan->RecvPktCount);
if ((pElan->RecvPktCount % 20) == 0)
{
DBGP((1, "RecvPktCount %d\n", pElan->RecvPktCount));
}
#endif
//
// Unchain first buffer
//
NdisUnchainBufferAtFront(pRecvNdisPacket, &pFirstNdisBuffer);
ASSERT(pFirstNdisBuffer != (PNDIS_BUFFER)NULL);
NdisQueryBuffer(pFirstNdisBuffer, &pTempBuffer, &TempLength);
ASSERT(TempLength > 2);
//
// "Copy" it to another buffer header skipping the first 2 bytes
//
NdisCopyBuffer(
&Status,
&pNewNdisBuffer,
pElan->ReceiveBufferPool,
pFirstNdisBuffer,
2,
(TempLength - 2)
);
if (Status != NDIS_STATUS_SUCCESS)
{
DBGP((0, "DataPacketHandler: NdisCopyBuffer failed (%x)\n",
Status));
Status = NDIS_STATUS_RESOURCES;
break;
}
//
// Chain new buffer onto new packet header.
//
NdisChainBufferAtFront(pNewNdisPacket, pNewNdisBuffer);
BufferCount++;
//
// Chain rest of buffers onto tail of new NDIS Packet
//
do
{
NdisUnchainBufferAtFront(pRecvNdisPacket, &pTempNdisBuffer);
if (pTempNdisBuffer == (PNDIS_BUFFER)NULL)
break;
ASSERT(pTempNdisBuffer->Next == NULL);
NdisChainBufferAtBack(pNewNdisPacket, pTempNdisBuffer);
BufferCount++;
}
while (TRUE);
//
// Chain original first buffer back on original packet
//
NdisChainBufferAtFront(pRecvNdisPacket, pFirstNdisBuffer);
//
// Save away pointer to original NDIS Packet header in reserved
// area of our new NDIS Packet header.
//
// NOTE use of MiniportReserved in this case!
//
// Also set Owner flag appropriately.
pNewPacketContext =
(PRECV_PACKET_RESERVED)&pNewNdisPacket->MiniportReserved;
NdisZeroMemory(pNewPacketContext, sizeof(*pNewPacketContext));
pNewPacketContext->pNdisPacket = pRecvNdisPacket;
SET_FLAG(
pNewPacketContext->Flags,
PACKET_RESERVED_OWNER_MASK,
PACKET_RESERVED_OWNER_MINIPORT
);
//
// Increment the frame header pointer past the
// LANE header (+2 bytes)
//
pHeaderBuffer += 2;
//
// Output the MAC header length.
// Output the address type.
// Output the destination address.
// Determine if packet is a multicast.
//
if (pElan->LanType == LANE_LANTYPE_ETH)
{
//
// Ethernet/802.3 is simple.
//
// Header size is always 14.
// Type is always a MAC address.
// Dest Addr is first 6 bytes of header.
// DestAddress is Multicast if low-order bit in
// first byte of the Destination Address is set.
//
*pMacHdrSize = 14;
*pDestAddrType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddr, pHeaderBuffer, 6);
*pDestIsMulticast = (((*pHeaderBuffer) & 1) != 0);
}
else
{
//
// Token Ring/802.5 is a slightly less simple (understatement!).
//
do
{
//
// Calculate MAC header size.
//
*pMacHdrSize = 14; // start with minimum
if (pHeaderBuffer[8] & 0x80) // if SR info present
{
*pMacHdrSize += (pHeaderBuffer[14] & 0x1F);// add on SR info length
}
//
// Is it a true Multicast?
//
if ((*(pHeaderBuffer+2) & 0x80) != 0) // DA multicast bit present?
{
*pDestIsMulticast = TRUE;
*pDestAddrType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddr, pHeaderBuffer+2, 6);
break;
}
//
// Is it an All Routes Explorer (ARE) or Spanning Tree Explorer (STE)?
// If so treat it as a multicast.
//
if ( ((*(pHeaderBuffer+8) & 0x80) != 0) && // SA RI bit present and
((*(pHeaderBuffer+14) & 0xe0) !=0) ) // RI type field upper bits on?
{
*pDestIsMulticast = TRUE;
*pDestAddrType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddr, pHeaderBuffer+2, 6);
break;
}
//
// Otherwise it is unicast, Source Routed or not.
//
*pDestIsMulticast = FALSE;
*pDestAddrType = LANE_MACADDRTYPE_MACADDR;
NdisMoveMemory(pDestAddr, pHeaderBuffer+2, 6);
break;
}
while (FALSE);
} // if (pElan->LanType == LANE_LANTYPE_ETH)
NdisQueryPacket(pNewNdisPacket, NULL, NULL, NULL, &TotalLength);
DBGP((3, "WrapRecvPacket: RecvPkt %x NewPkt %x Length %d\n",
pRecvNdisPacket, pNewNdisPacket, TempLength));
TRACELOGWRITE((&TraceLog,
TL_WRAPRECV,
pRecvNdisPacket,
pNewNdisPacket,
BufferCount,
TotalLength));
break;
}
while (FALSE);
if (Status != NDIS_STATUS_SUCCESS)
{
if (pNewNdisPacket != (PNDIS_PACKET)NULL)
{
NdisFreePacket(pNewNdisPacket);
#if PKT_HDR_COUNTS
InterlockedIncrement(&pElan->RecvPktCount);
if ((pElan->RecvPktCount % 20) == 0 &&
pElan->RecvPktCount != pElan->MaxHeaderBufs)
{
DBGP((1, "RecvPktCount %d\n", pElan->RecvPktCount));
}
#endif
pNewNdisPacket = NULL;
}
if (pNewNdisBuffer != (PNDIS_BUFFER)NULL)
{
AtmLaneFreeProtoBuffer(pElan, pNewNdisBuffer);
}
}
TRACEOUT(WrapRecvPacket);
return pNewNdisPacket;
}
PNDIS_PACKET
AtmLaneUnwrapRecvPacket(
IN PATMLANE_ELAN pElan,
IN PNDIS_PACKET pNdisPacket
)
/*++
Routine Description:
This function basically undoes what AtmLaneWrapRecvPacket
does. It removes the new NDIS packet header and the
2-byte offset buffer descriptor. It restores the original
packet header and first buffer descriptor.
Arguments:
pElan - Pointer to ATMLANE elan structure
pNdisPacket - Pointer to NDIS packet
Return Value:
Original NDIS packet header.
--*/
{
PRECV_PACKET_RESERVED pPacketContext;
PNDIS_PACKET pOrigNdisPacket;
PNDIS_BUFFER pTempNdisBuffer;
ULONG BufferCount;
ULONG TotalLength;
TRACEIN(UnwrapRecvPacket);
//
// Get original packet from MiniportReserved.
// Should have original first buffer on it still.
//
pPacketContext = (PRECV_PACKET_RESERVED)&pNdisPacket->MiniportReserved;
pOrigNdisPacket = pPacketContext->pNdisPacket;
ASSERT(pOrigNdisPacket != (PNDIS_PACKET)NULL);
ASSERT(pOrigNdisPacket->Private.Head != (PNDIS_BUFFER)NULL);
BufferCount = 1;
//
// Unchain first buffer (ours) and free it.
//
NdisUnchainBufferAtFront(pNdisPacket, &pTempNdisBuffer);
NdisFreeBuffer(pTempNdisBuffer);
//
// Put rest of buffers back on original packet header.
//
do
{
NdisUnchainBufferAtFront(pNdisPacket, &pTempNdisBuffer);
if (pTempNdisBuffer == (PNDIS_BUFFER)NULL)
break;
ASSERT(pTempNdisBuffer->Next == NULL);
NdisChainBufferAtBack(pOrigNdisPacket, pTempNdisBuffer);
BufferCount++;
}
while (TRUE);
NdisQueryPacket(pOrigNdisPacket, NULL, NULL, NULL, &TotalLength);
DBGP((3, "UnwrapRecvPacket: Pkt %x Length %d\n", pOrigNdisPacket, TotalLength));
TRACELOGWRITE((&TraceLog,
TL_UNWRAPRECV,
pNdisPacket,
pOrigNdisPacket,
BufferCount,
TotalLength));
//
// Free the recv packet descriptor.
//
NdisFreePacket(pNdisPacket);
#if PKT_HDR_COUNTS
InterlockedIncrement(&pElan->RecvPktCount);
if ((pElan->RecvPktCount % 20) == 0 &&
pElan->RecvPktCount != pElan->MaxHeaderBufs)
{
DBGP((1, "RecvPktCount %d\n", pElan->RecvPktCount));
}
#endif
TRACEOUT(UnwrapRecvPacket);
return pOrigNdisPacket;
}
NDIS_STATUS
AtmLaneMSetNetworkAddresses(
IN PATMLANE_ELAN pElan,
IN PVOID InformationBuffer,
IN ULONG InformationBufferLength,
OUT PULONG BytesRead,
OUT PULONG BytesNeeded
)
/*++
Routine Description:
Called when the protocol above us wants to let us know about
the network address(es) assigned to this interface. If this is TCP/IP,
then we reformat and send a request to the ATM Call Manager to set
its atmfMyIpNmAddress object. We pick the first IP address given to us.
Arguments:
pElan - Pointer to the ELAN
InformationBuffer - Holds the data to be set.
InformationBufferLength - The length of InformationBuffer.
BytesRead - If the call is successful, returns the number
of bytes read from InformationBuffer.
BytesNeeded - If there is not enough data in InformationBuffer
to satisfy the OID, returns the amount of storage
needed.
Return Value:
NDIS_STATUS_SUCCESS
NDIS_STATUS_PENDING
NDIS_STATUS_INVALID_LENGTH
--*/
{
NETWORK_ADDRESS_LIST UNALIGNED * pAddrList;
NETWORK_ADDRESS UNALIGNED * pAddr;
NETWORK_ADDRESS_IP UNALIGNED * pIpAddr;
PNDIS_REQUEST pNdisRequest;
ULONG RequestSize;
PUCHAR pNetworkAddr;
NDIS_HANDLE NdisAdapterHandle;
NDIS_HANDLE NdisAfHandle;
NDIS_STATUS Status;
//
// Initialize.
//
*BytesRead = 0;
Status = NDIS_STATUS_SUCCESS;
pAddrList = (NETWORK_ADDRESS_LIST UNALIGNED *)InformationBuffer;
do
{
ACQUIRE_ELAN_LOCK(pElan);
if (NULL_PATMLANE_ADAPTER != pElan->pAdapter)
{
NdisAfHandle = pElan->NdisAfHandle;
NdisAdapterHandle = pElan->pAdapter->NdisAdapterHandle;
}
else
{
Status = NDIS_STATUS_FAILURE;
}
RELEASE_ELAN_LOCK(pElan);
if (NDIS_STATUS_SUCCESS != Status)
{
break;
}
*BytesNeeded = sizeof(*pAddrList) -
FIELD_OFFSET(NETWORK_ADDRESS_LIST, Address) +
sizeof(NETWORK_ADDRESS) -
FIELD_OFFSET(NETWORK_ADDRESS, Address);
if (InformationBufferLength < *BytesNeeded)
{
Status = NDIS_STATUS_INVALID_LENGTH;
break;
}
if (pAddrList->AddressType != NDIS_PROTOCOL_ID_TCP_IP)
{
// Not interesting.
break;
}
if (pAddrList->AddressCount <= 0)
{
Status = NDIS_STATUS_INVALID_DATA;
break;
}
pAddr = (NETWORK_ADDRESS UNALIGNED *)&pAddrList->Address[0];
if ((pAddr->AddressLength > InformationBufferLength - *BytesNeeded) ||
(pAddr->AddressLength == 0))
{
Status = NDIS_STATUS_INVALID_LENGTH;
break;
}
if (pAddr->AddressType != NDIS_PROTOCOL_ID_TCP_IP)
{
// Not interesting.
break;
}
if (pAddr->AddressLength < sizeof(NETWORK_ADDRESS_IP))
{
Status = NDIS_STATUS_INVALID_LENGTH;
break;
}
pIpAddr = (NETWORK_ADDRESS_IP UNALIGNED *)&pAddr->Address[0];
//
// Allocate an NDIS request to send down to the call manager.
//
RequestSize = sizeof(NDIS_REQUEST) + sizeof(pIpAddr->in_addr);
ALLOC_MEM(&pNdisRequest, RequestSize);
if (pNdisRequest == NULL)
{
Status = NDIS_STATUS_RESOURCES;
break;
}
//
// Copy the network address in.
//
pNetworkAddr = ((PUCHAR)pNdisRequest + sizeof(NDIS_REQUEST));
NdisMoveMemory(pNetworkAddr, &pIpAddr->in_addr, sizeof(pIpAddr->in_addr));
DBGP((3, "%d Set network layer addr: length %d\n", pElan->ElanNumber, pAddr->AddressLength));
#if DBG
if (pAddr->AddressLength >= 4)
{
DBGP((1, "Network layer addr: %d.%d.%d.%d\n",
pNetworkAddr[0],
pNetworkAddr[1],
pNetworkAddr[2],
pNetworkAddr[3]));
}
#endif // DBG
//
// Send off the request.
//
Status = AtmLaneSendNdisCoRequest(
NdisAdapterHandle,
NdisAfHandle,
pNdisRequest,
NdisRequestSetInformation,
OID_ATM_MY_IP_NM_ADDRESS,
pNetworkAddr,
sizeof(pIpAddr->in_addr)
);
if (Status == NDIS_STATUS_PENDING)
{
Status = NDIS_STATUS_SUCCESS;
}
break;
}
while (FALSE);
return (Status);
}
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