221 lines
5.4 KiB
C
221 lines
5.4 KiB
C
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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ntos\tdi\isn\fwd\send.c
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Abstract:
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Send routines
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Author:
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Vadim Eydelman
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Revision History:
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--*/
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#ifndef IPXFWD_SEND
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#define IPXFWD_SEND
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typedef struct _INTERNAL_PACKET_TAG {
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LIST_ENTRY IPT_QueueLink;
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PNDIS_PACKET IPT_Packet;
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PUCHAR IPT_DataPtr;
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ULONG IPT_Length;
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PINTERFACE_CB IPT_InterfaceReference;
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IPX_LOCAL_TARGET IPT_Target;
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} INTERNAL_PACKET_TAG, *PINTERNAL_PACKET_TAG;
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#define DEF_SPOOFING_TIMEOUT (120*60) // Seconds
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extern ULONG SpoofingTimeout;
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extern LIST_ENTRY SpoofingQueue;
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extern KSPIN_LOCK SpoofingQueueLock;
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extern WORK_QUEUE_ITEM SpoofingWorker;
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extern BOOLEAN SpoofingWorkerActive;
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extern ULONG DontSuppressNonAgentSapAdvertisements;
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VOID
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Spoofer (
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PVOID Context
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);
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#define InitializeSendQueue() { \
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InitializeListHead (&SpoofingQueue); \
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KeInitializeSpinLock (&SpoofingQueueLock); \
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ExInitializeWorkItem (&SpoofingWorker, Spoofer, NULL); \
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SpoofingWorkerActive = FALSE; \
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}
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#define DeleteSendQueue() { \
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while (!IsListEmpty (&SpoofingQueue)) { \
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PPACKET_TAG pktTag = CONTAINING_RECORD (SpoofingQueue.Flink, \
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PACKET_TAG, \
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PT_QueueLink); \
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RemoveEntryList (&pktTag->PT_QueueLink); \
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if (pktTag->PT_InterfaceReference!=NULL) \
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ReleaseInterfaceReference (pktTag->PT_InterfaceReference); \
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FreePacket (pktTag); \
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} \
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}
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/*++
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*******************************************************************
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S e n d P a c k e t
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Routine Description:
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Enqueues packets to be sent by IPX stack
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Arguments:
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dstIf - over which interface to send
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pktTag - packet to send
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Return Value:
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None
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*******************************************************************
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--*/
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VOID
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SendPacket (
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PINTERFACE_CB dstIf,
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PPACKET_TAG pktTag
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);
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/*++
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*******************************************************************
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F w S e n d C o m p l e t e
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Routine Description:
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Called by IPX stack when send completes asynchronously
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Arguments:
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pktDscr - descriptor of the completed packet
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status - result of send operation
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Return Value:
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None
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*******************************************************************
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--*/
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VOID
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IpxFwdSendComplete (
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PNDIS_PACKET pktDscr,
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NDIS_STATUS NdisStatus
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);
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/*++
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*******************************************************************
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F w I n t e r n a l S e n d
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Routine Description:
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Filter and routes packets sent by IPX stack
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Arguments:
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LocalTarget - the NicId and next hop router MAC address
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Context - preferred interface on which to send
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Packet - packet to be sent
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ipxHdr - pointer to ipx header inside the packet
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PacketLength - length of the packet
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fIterate - a flag to indicate if this is a packet for the
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iteration of which the Fwd takes responsibility
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- typically type 20 NetBIOS frames
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Return Value:
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STATUS_SUCCESS - if the preferred NIC was OK and packet passed filtering
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STATUS_NETWORK_UNREACHABLE - if the preferred was not OK or packet failed filtering
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STATUS_PENDING - packet was queued until connection is established
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*******************************************************************
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--*/
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NTSTATUS
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IpxFwdInternalSend (
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IN OUT PIPX_LOCAL_TARGET LocalTarget,
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IN ULONG_PTR Context,
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IN PNDIS_PACKET pktDscr,
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IN PUCHAR ipxHdr,
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IN PUCHAR data,
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IN ULONG PacketLength,
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IN BOOLEAN fIterate
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);
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/*++
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*******************************************************************
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P r o c e s s I n t e r n a l Q u e u e
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Routine Description:
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Processes packets in the interface internal queue.
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Called when connection request completes
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Arguments:
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dstIf - interface to process
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Return Value:
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None
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*******************************************************************
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--*/
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VOID
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ProcessInternalQueue (
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PINTERFACE_CB dstIf
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);
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/*++
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*******************************************************************
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P r o c e s s E x t e r n a l Q u e u e
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Routine Description:
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Processes packets in the interface external queue.
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Called when connection request completes
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Arguments:
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dstIf - interface to process
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Return Value:
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None
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*******************************************************************
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--*/
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VOID
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ProcessExternalQueue (
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PINTERFACE_CB dstIf
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);
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/*++
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*******************************************************************
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D o S e n d
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Routine Description:
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Prepares and sends packet. Interface lock must be help while
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callin this routine
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Arguments:
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dstIf - over which interface to send
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pktTag - packet to send
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Return Value:
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result returned by IPX
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*******************************************************************
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--*/
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NDIS_STATUS
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DoSend (
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PINTERFACE_CB dstIf,
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PPACKET_TAG pktTag,
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KIRQL oldIRQL
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);
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/*++
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*******************************************************************
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P r o c e s s S e n t P a c k e t
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Routine Description:
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Process completed sent packets
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Arguments:
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dstIf - interface over which packet was sent
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pktTag - completed packet
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status - result of send operation
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Return Value:
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None
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*******************************************************************
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--*/
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VOID
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ProcessSentPacket (
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PINTERFACE_CB dstIf,
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PPACKET_TAG pktTag,
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NDIS_STATUS status
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);
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#endif
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