mirror of
https://github.com/reactos/reactos.git
synced 2024-09-21 10:07:17 +00:00
5e7a8d3a1a
- Use a spin lock to protect the signalled connections list - Add a debug ASSERT into each function that depends on the TCPLock being held - Release TCPLock before completing the IRP - Add some locking where it was forgotten - Optimize HandleSignalledConnection svn path=/trunk/; revision=41752
919 lines
29 KiB
C
919 lines
29 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS TCP/IP protocol driver
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* FILE: transport/tcp/tcp.c
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* PURPOSE: Transmission Control Protocol
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* PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* Art Yerkes (arty@users.sf.net)
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* REVISIONS:
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* CSH 01/08-2000 Created
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* arty 12/21/2004 Added accept
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*/
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#include "precomp.h"
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LONG TCP_IPIdentification = 0;
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static BOOLEAN TCPInitialized = FALSE;
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static NPAGED_LOOKASIDE_LIST TCPSegmentList;
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LIST_ENTRY SignalledConnectionsList;
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KSPIN_LOCK SignalledConnectionsLock;
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LIST_ENTRY SleepingThreadsList;
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FAST_MUTEX SleepingThreadsLock;
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RECURSIVE_MUTEX TCPLock;
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PORT_SET TCPPorts;
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static VOID HandleSignalledConnection( PCONNECTION_ENDPOINT Connection ) {
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NTSTATUS Status = STATUS_SUCCESS;
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PTCP_COMPLETION_ROUTINE Complete;
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PTDI_BUCKET Bucket;
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PLIST_ENTRY Entry;
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PIRP Irp;
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PMDL Mdl;
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ASSERT_LOCKED(&TCPLock);
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TI_DbgPrint(MID_TRACE,("Handling signalled state on %x (%x)\n",
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Connection, Connection->SocketContext));
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if( Connection->SignalState & SEL_FIN ) {
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TI_DbgPrint(DEBUG_TCP, ("EOF From socket\n"));
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while ((Entry = ExInterlockedRemoveHeadList( &Connection->ReceiveRequest,
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&Connection->Lock )) != NULL)
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{
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DISCONNECT_TYPE DisType;
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PIO_STACK_LOCATION IrpSp;
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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IrpSp = IoGetCurrentIrpStackLocation((PIRP)Bucket->Request.RequestContext);
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/* We have to notify oskittcp of the abortion */
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DisType.Type = TDI_DISCONNECT_RELEASE | TDI_DISCONNECT_ABORT;
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DisType.Context = Connection;
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DisType.Irp = (PIRP)Bucket->Request.RequestContext;
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DisType.FileObject = IrpSp->FileObject;
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ChewCreate(NULL, sizeof(DISCONNECT_TYPE),
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DispDoDisconnect, &DisType);
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}
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while ((Entry = ExInterlockedRemoveHeadList( &Connection->SendRequest,
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&Connection->Lock )) != NULL)
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{
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DISCONNECT_TYPE DisType;
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PIO_STACK_LOCATION IrpSp;
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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IrpSp = IoGetCurrentIrpStackLocation((PIRP)Bucket->Request.RequestContext);
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/* We have to notify oskittcp of the abortion */
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DisType.Type = TDI_DISCONNECT_RELEASE;
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DisType.Context = Connection;
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DisType.Irp = (PIRP)Bucket->Request.RequestContext;
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DisType.FileObject = IrpSp->FileObject;
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ChewCreate(NULL, sizeof(DISCONNECT_TYPE),
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DispDoDisconnect, &DisType);
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}
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while ((Entry = ExInterlockedRemoveHeadList( &Connection->ListenRequest,
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&Connection->Lock )) != NULL)
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{
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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/* We have to notify oskittcp of the abortion */
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TCPAbortListenForSocket(Connection->AddressFile->Listener,
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Connection);
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Complete( Bucket->Request.RequestContext, STATUS_CANCELLED, 0 );
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}
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while ((Entry = ExInterlockedRemoveHeadList( &Connection->ConnectRequest,
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&Connection->Lock )) != NULL)
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{
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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Complete( Bucket->Request.RequestContext, STATUS_CANCELLED, 0 );
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}
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Connection->SignalState = 0;
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}
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/* Things that can happen when we try the initial connection */
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if( Connection->SignalState & SEL_CONNECT ) {
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while( (Entry = ExInterlockedRemoveHeadList( &Connection->ConnectRequest,
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&Connection->Lock )) != NULL ) {
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TI_DbgPrint(DEBUG_TCP, ("Connect Event\n"));
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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TI_DbgPrint(DEBUG_TCP,
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("Completing Request %x\n", Bucket->Request.RequestContext));
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Complete( Bucket->Request.RequestContext, STATUS_SUCCESS, 0 );
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/* Frees the bucket allocated in TCPConnect */
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exFreePool( Bucket );
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}
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}
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if( Connection->SignalState & SEL_ACCEPT ) {
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/* Handle readable on a listening socket --
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* TODO: Implement filtering
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*/
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TI_DbgPrint(DEBUG_TCP,("Accepting new connection on %x (Queue: %s)\n",
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Connection,
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IsListEmpty(&Connection->ListenRequest) ?
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"empty" : "nonempty"));
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while( (Entry = ExInterlockedRemoveHeadList( &Connection->ListenRequest,
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&Connection->Lock )) != NULL ) {
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PIO_STACK_LOCATION IrpSp;
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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Irp = Bucket->Request.RequestContext;
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IrpSp = IoGetCurrentIrpStackLocation( Irp );
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TI_DbgPrint(DEBUG_TCP,("Getting the socket\n"));
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Status = TCPServiceListeningSocket
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( Connection->AddressFile->Listener,
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Bucket->AssociatedEndpoint,
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(PTDI_REQUEST_KERNEL)&IrpSp->Parameters );
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TI_DbgPrint(DEBUG_TCP,("Socket: Status: %x\n"));
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if( Status == STATUS_PENDING ) {
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ExInterlockedInsertHeadList( &Connection->ListenRequest, &Bucket->Entry, &Connection->Lock );
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break;
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} else {
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Complete( Bucket->Request.RequestContext, Status, 0 );
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exFreePool( Bucket );
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}
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}
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}
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/* Things that happen after we're connected */
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if( Connection->SignalState & SEL_READ ) {
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TI_DbgPrint(DEBUG_TCP,("Readable: irp list %s\n",
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IsListEmpty(&Connection->ReceiveRequest) ?
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"empty" : "nonempty"));
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while( (Entry = ExInterlockedRemoveHeadList( &Connection->ReceiveRequest,
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&Connection->Lock )) != NULL ) {
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OSK_UINT RecvLen = 0, Received = 0;
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PVOID RecvBuffer = 0;
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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Irp = Bucket->Request.RequestContext;
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Mdl = Irp->MdlAddress;
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TI_DbgPrint(DEBUG_TCP,
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("Getting the user buffer from %x\n", Mdl));
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NdisQueryBuffer( Mdl, &RecvBuffer, &RecvLen );
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TI_DbgPrint(DEBUG_TCP,
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("Reading %d bytes to %x\n", RecvLen, RecvBuffer));
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TI_DbgPrint(DEBUG_TCP, ("Connection: %x\n", Connection));
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TI_DbgPrint
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(DEBUG_TCP,
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("Connection->SocketContext: %x\n",
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Connection->SocketContext));
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TI_DbgPrint(DEBUG_TCP, ("RecvBuffer: %x\n", RecvBuffer));
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Status = TCPTranslateError
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( OskitTCPRecv( Connection->SocketContext,
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RecvBuffer,
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RecvLen,
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&Received,
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0 ) );
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TI_DbgPrint(DEBUG_TCP,("TCP Bytes: %d\n", Received));
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if( Status == STATUS_SUCCESS ) {
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TI_DbgPrint(DEBUG_TCP,("Received %d bytes with status %x\n",
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Received, Status));
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Complete( Bucket->Request.RequestContext,
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STATUS_SUCCESS, Received );
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exFreePool( Bucket );
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} else if( Status == STATUS_PENDING ) {
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ExInterlockedInsertHeadList
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( &Connection->ReceiveRequest, &Bucket->Entry, &Connection->Lock );
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break;
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} else {
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TI_DbgPrint(DEBUG_TCP,
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("Completing Receive request: %x %x\n",
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Bucket->Request, Status));
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Complete( Bucket->Request.RequestContext, Status, 0 );
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exFreePool( Bucket );
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}
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}
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}
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if( Connection->SignalState & SEL_WRITE ) {
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TI_DbgPrint(DEBUG_TCP,("Writeable: irp list %s\n",
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IsListEmpty(&Connection->SendRequest) ?
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"empty" : "nonempty"));
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while( (Entry = ExInterlockedRemoveHeadList( &Connection->SendRequest,
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&Connection->Lock )) != NULL ) {
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OSK_UINT SendLen = 0, Sent = 0;
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PVOID SendBuffer = 0;
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Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
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Complete = Bucket->Request.RequestNotifyObject;
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Irp = Bucket->Request.RequestContext;
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Mdl = Irp->MdlAddress;
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TI_DbgPrint(DEBUG_TCP,
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("Getting the user buffer from %x\n", Mdl));
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NdisQueryBuffer( Mdl, &SendBuffer, &SendLen );
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TI_DbgPrint(DEBUG_TCP,
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("Writing %d bytes to %x\n", SendLen, SendBuffer));
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TI_DbgPrint(DEBUG_TCP, ("Connection: %x\n", Connection));
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TI_DbgPrint
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(DEBUG_TCP,
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("Connection->SocketContext: %x\n",
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Connection->SocketContext));
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Status = TCPTranslateError
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( OskitTCPSend( Connection->SocketContext,
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SendBuffer,
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SendLen,
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&Sent,
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0 ) );
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TI_DbgPrint(DEBUG_TCP,("TCP Bytes: %d\n", Sent));
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if( Status == STATUS_SUCCESS ) {
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TI_DbgPrint(DEBUG_TCP,("Sent %d bytes with status %x\n",
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Sent, Status));
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Complete( Bucket->Request.RequestContext,
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STATUS_SUCCESS, Sent );
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exFreePool( Bucket );
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} else if( Status == STATUS_PENDING ) {
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ExInterlockedInsertHeadList
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( &Connection->SendRequest, &Bucket->Entry, &Connection->Lock );
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break;
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} else {
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TI_DbgPrint(DEBUG_TCP,
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("Completing Send request: %x %x\n",
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Bucket->Request, Status));
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Complete( Bucket->Request.RequestContext, Status, 0 );
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exFreePool( Bucket );
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}
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}
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}
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Connection->SignalState = 0;
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Connection->Signalled = FALSE;
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}
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VOID DrainSignals() {
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PCONNECTION_ENDPOINT Connection;
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PLIST_ENTRY ListEntry;
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while( (ListEntry = ExInterlockedRemoveHeadList(&SignalledConnectionsList,
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&SignalledConnectionsLock)) != NULL) {
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Connection = CONTAINING_RECORD( ListEntry, CONNECTION_ENDPOINT,
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SignalList );
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HandleSignalledConnection( Connection );
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}
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}
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PCONNECTION_ENDPOINT TCPAllocateConnectionEndpoint( PVOID ClientContext ) {
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PCONNECTION_ENDPOINT Connection =
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exAllocatePool(NonPagedPool, sizeof(CONNECTION_ENDPOINT));
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if (!Connection)
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return Connection;
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TI_DbgPrint(DEBUG_CPOINT, ("Connection point file object allocated at (0x%X).\n", Connection));
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RtlZeroMemory(Connection, sizeof(CONNECTION_ENDPOINT));
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/* Initialize spin lock that protects the connection endpoint file object */
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TcpipInitializeSpinLock(&Connection->Lock);
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InitializeListHead(&Connection->ConnectRequest);
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InitializeListHead(&Connection->ListenRequest);
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InitializeListHead(&Connection->ReceiveRequest);
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InitializeListHead(&Connection->SendRequest);
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/* Save client context pointer */
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Connection->ClientContext = ClientContext;
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return Connection;
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}
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VOID TCPFreeConnectionEndpoint( PCONNECTION_ENDPOINT Connection ) {
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TI_DbgPrint(DEBUG_TCP, ("Freeing TCP Endpoint\n"));
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exFreePool( Connection );
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}
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NTSTATUS TCPSocket( PCONNECTION_ENDPOINT Connection,
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UINT Family, UINT Type, UINT Proto ) {
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NTSTATUS Status;
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ASSERT_LOCKED(&TCPLock);
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TI_DbgPrint(DEBUG_TCP,("Called: Connection %x, Family %d, Type %d, "
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"Proto %d\n",
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Connection, Family, Type, Proto));
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Status = TCPTranslateError( OskitTCPSocket( Connection,
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&Connection->SocketContext,
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Family,
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Type,
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Proto ) );
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ASSERT_KM_POINTER(Connection->SocketContext);
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TI_DbgPrint(DEBUG_TCP,("Connection->SocketContext %x\n",
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Connection->SocketContext));
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return Status;
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}
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VOID TCPReceive(PIP_INTERFACE Interface, PIP_PACKET IPPacket)
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/*
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* FUNCTION: Receives and queues TCP data
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* ARGUMENTS:
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* IPPacket = Pointer to an IP packet that was received
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* NOTES:
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* This is the low level interface for receiving TCP data
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*/
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{
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TI_DbgPrint(DEBUG_TCP,("Sending packet %d (%d) to oskit\n",
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IPPacket->TotalSize,
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IPPacket->HeaderSize));
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TcpipRecursiveMutexEnter( &TCPLock, TRUE );
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OskitTCPReceiveDatagram( IPPacket->Header,
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IPPacket->TotalSize,
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IPPacket->HeaderSize );
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DrainSignals();
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TcpipRecursiveMutexLeave( &TCPLock );
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}
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/* event.c */
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int TCPSocketState( void *ClientData,
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void *WhichSocket,
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void *WhichConnection,
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OSK_UINT NewState );
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int TCPPacketSend( void *ClientData,
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OSK_PCHAR Data,
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OSK_UINT Len );
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POSK_IFADDR TCPFindInterface( void *ClientData,
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OSK_UINT AddrType,
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OSK_UINT FindType,
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OSK_SOCKADDR *ReqAddr );
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NTSTATUS TCPMemStartup( void );
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void *TCPMalloc( void *ClientData,
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OSK_UINT bytes, OSK_PCHAR file, OSK_UINT line );
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void TCPFree( void *ClientData,
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void *data, OSK_PCHAR file, OSK_UINT line );
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void TCPMemShutdown( void );
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int TCPSleep( void *ClientData, void *token, int priority, char *msg,
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int tmio );
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void TCPWakeup( void *ClientData, void *token );
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OSKITTCP_EVENT_HANDLERS EventHandlers = {
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NULL, /* Client Data */
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TCPSocketState, /* SocketState */
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TCPPacketSend, /* PacketSend */
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TCPFindInterface, /* FindInterface */
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TCPMalloc, /* Malloc */
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TCPFree, /* Free */
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TCPSleep, /* Sleep */
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TCPWakeup /* Wakeup */
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};
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static KEVENT TimerLoopEvent;
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static HANDLE TimerThreadHandle;
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/*
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* We are running 2 timers here, one with a 200ms interval (fast) and the other
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* with a 500ms interval (slow). So we need to time out at 200, 400, 500, 600,
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* 800, 1000 and process the "fast" events at 200, 400, 600, 800, 1000 and the
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* "slow" events at 500 and 1000.
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*/
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static VOID NTAPI
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TimerThread(PVOID Context)
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{
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LARGE_INTEGER Timeout;
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NTSTATUS Status;
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unsigned Current, NextFast, NextSlow, Next;
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Current = 0;
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Next = 0;
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NextFast = 0;
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NextSlow = 0;
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while ( 1 ) {
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if (Next == NextFast) {
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NextFast += 2;
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}
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if (Next == NextSlow) {
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NextSlow += 5;
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}
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Next = min(NextFast, NextSlow);
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Timeout.QuadPart = (LONGLONG) (Next - Current) * -1000000; /* 100 ms */
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Status = KeWaitForSingleObject(&TimerLoopEvent, Executive, KernelMode,
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FALSE, &Timeout);
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if (Status != STATUS_TIMEOUT) {
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PsTerminateSystemThread(Status);
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}
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TcpipRecursiveMutexEnter( &TCPLock, TRUE );
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TimerOskitTCP( Next == NextFast, Next == NextSlow );
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if (Next == NextSlow) {
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DrainSignals();
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}
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TcpipRecursiveMutexLeave( &TCPLock );
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Current = Next;
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if (10 <= Current) {
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Current = 0;
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Next = 0;
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NextFast = 0;
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NextSlow = 0;
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}
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}
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}
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static VOID
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StartTimer(VOID)
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{
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KeInitializeEvent(&TimerLoopEvent, NotificationEvent, FALSE);
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PsCreateSystemThread(&TimerThreadHandle, THREAD_ALL_ACCESS, 0, 0, 0,
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TimerThread, NULL);
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}
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NTSTATUS TCPStartup(VOID)
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/*
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* FUNCTION: Initializes the TCP subsystem
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* RETURNS:
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* Status of operation
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*/
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{
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NTSTATUS Status;
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TcpipRecursiveMutexInit( &TCPLock );
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ExInitializeFastMutex( &SleepingThreadsLock );
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KeInitializeSpinLock( &SignalledConnectionsLock );
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InitializeListHead( &SleepingThreadsList );
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InitializeListHead( &SignalledConnectionsList );
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Status = TCPMemStartup();
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if ( ! NT_SUCCESS(Status) ) {
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return Status;
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}
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Status = PortsStartup( &TCPPorts, 1, 0xfffe );
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if( !NT_SUCCESS(Status) ) {
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TCPMemShutdown();
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return Status;
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}
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TcpipRecursiveMutexEnter(&TCPLock, TRUE);
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RegisterOskitTCPEventHandlers( &EventHandlers );
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InitOskitTCP();
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TcpipRecursiveMutexLeave(&TCPLock);
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|
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/* Register this protocol with IP layer */
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IPRegisterProtocol(IPPROTO_TCP, TCPReceive);
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ExInitializeNPagedLookasideList(
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&TCPSegmentList, /* Lookaside list */
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NULL, /* Allocate routine */
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NULL, /* Free routine */
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0, /* Flags */
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sizeof(TCP_SEGMENT), /* Size of each entry */
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TAG('T','C','P','S'), /* Tag */
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0); /* Depth */
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|
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StartTimer();
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TCPInitialized = TRUE;
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return STATUS_SUCCESS;
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}
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NTSTATUS TCPShutdown(VOID)
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/*
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|
* FUNCTION: Shuts down the TCP subsystem
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|
* RETURNS:
|
|
* Status of operation
|
|
*/
|
|
{
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|
LARGE_INTEGER WaitForThread;
|
|
|
|
if (!TCPInitialized)
|
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return STATUS_SUCCESS;
|
|
|
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WaitForThread.QuadPart = -2500000; /* 250 ms */
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KeSetEvent(&TimerLoopEvent, IO_NO_INCREMENT, FALSE);
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ZwWaitForSingleObject(TimerThreadHandle, FALSE, &WaitForThread);
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|
|
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/* Deregister this protocol with IP layer */
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IPRegisterProtocol(IPPROTO_TCP, NULL);
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|
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ExDeleteNPagedLookasideList(&TCPSegmentList);
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|
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TCPInitialized = FALSE;
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|
|
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DeinitOskitTCP();
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|
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PortsShutdown( &TCPPorts );
|
|
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TCPMemShutdown();
|
|
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|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
NTSTATUS TCPTranslateError( int OskitError ) {
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NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
|
|
|
switch( OskitError ) {
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case 0: Status = STATUS_SUCCESS; break;
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case OSK_EADDRNOTAVAIL:
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case OSK_EAFNOSUPPORT: Status = STATUS_INVALID_CONNECTION; break;
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case OSK_ECONNREFUSED:
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case OSK_ECONNRESET: Status = STATUS_REMOTE_NOT_LISTENING; break;
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case OSK_EINPROGRESS:
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case OSK_EAGAIN: Status = STATUS_PENDING; break;
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default: Status = STATUS_INVALID_CONNECTION; break;
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|
}
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|
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TI_DbgPrint(DEBUG_TCP,("Error %d -> %x\n", OskitError, Status));
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return Status;
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}
|
|
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NTSTATUS TCPConnect
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( PCONNECTION_ENDPOINT Connection,
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PTDI_CONNECTION_INFORMATION ConnInfo,
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PTDI_CONNECTION_INFORMATION ReturnInfo,
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PTCP_COMPLETION_ROUTINE Complete,
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|
PVOID Context ) {
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NTSTATUS Status;
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SOCKADDR_IN AddressToConnect = { 0 }, AddressToBind = { 0 };
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IP_ADDRESS RemoteAddress;
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USHORT RemotePort;
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PTDI_BUCKET Bucket;
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PNEIGHBOR_CACHE_ENTRY NCE;
|
|
|
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TI_DbgPrint(DEBUG_TCP,("TCPConnect: Called\n"));
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|
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ASSERT_LOCKED(&TCPLock);
|
|
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Status = AddrBuildAddress
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((PTRANSPORT_ADDRESS)ConnInfo->RemoteAddress,
|
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&RemoteAddress,
|
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&RemotePort);
|
|
|
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if (!NT_SUCCESS(Status)) {
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TI_DbgPrint(DEBUG_TCP, ("Could not AddrBuildAddress in TCPConnect\n"));
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return Status;
|
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}
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|
|
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if (!(NCE = RouteGetRouteToDestination(&RemoteAddress)))
|
|
{
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|
return STATUS_NETWORK_UNREACHABLE;
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|
}
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|
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if (Connection->State & SEL_FIN)
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{
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return STATUS_REMOTE_DISCONNECT;
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}
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|
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/* Freed in TCPSocketState */
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TI_DbgPrint(DEBUG_TCP,
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("Connecting to address %x:%x\n",
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RemoteAddress.Address.IPv4Address,
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RemotePort));
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AddressToConnect.sin_family = AF_INET;
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AddressToBind = AddressToConnect;
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AddressToBind.sin_addr.s_addr = NCE->Interface->Unicast.Address.IPv4Address;
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|
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Status = TCPTranslateError
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( OskitTCPBind( Connection->SocketContext,
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Connection,
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&AddressToBind,
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sizeof(AddressToBind) ) );
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if (NT_SUCCESS(Status)) {
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memcpy( &AddressToConnect.sin_addr,
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&RemoteAddress.Address.IPv4Address,
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sizeof(AddressToConnect.sin_addr) );
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AddressToConnect.sin_port = RemotePort;
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|
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Status = TCPTranslateError
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( OskitTCPConnect( Connection->SocketContext,
|
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Connection,
|
|
&AddressToConnect,
|
|
sizeof(AddressToConnect) ) );
|
|
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if (Status == STATUS_PENDING)
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|
{
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|
Bucket = exAllocatePool( NonPagedPool, sizeof(*Bucket) );
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if( !Bucket ) return STATUS_NO_MEMORY;
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|
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Bucket->Request.RequestNotifyObject = (PVOID)Complete;
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Bucket->Request.RequestContext = Context;
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|
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IoMarkIrpPending((PIRP)Context);
|
|
|
|
ExInterlockedInsertTailList( &Connection->ConnectRequest, &Bucket->Entry, &Connection->Lock );
|
|
}
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS TCPDisconnect
|
|
( PCONNECTION_ENDPOINT Connection,
|
|
UINT Flags,
|
|
PTDI_CONNECTION_INFORMATION ConnInfo,
|
|
PTDI_CONNECTION_INFORMATION ReturnInfo,
|
|
PTCP_COMPLETION_ROUTINE Complete,
|
|
PVOID Context ) {
|
|
NTSTATUS Status;
|
|
|
|
ASSERT_LOCKED(&TCPLock);
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("started\n"));
|
|
|
|
switch( Flags & (TDI_DISCONNECT_ABORT | TDI_DISCONNECT_RELEASE) ) {
|
|
case 0:
|
|
case TDI_DISCONNECT_ABORT:
|
|
Flags = 0;
|
|
break;
|
|
|
|
case TDI_DISCONNECT_ABORT | TDI_DISCONNECT_RELEASE:
|
|
Flags = 2;
|
|
break;
|
|
|
|
case TDI_DISCONNECT_RELEASE:
|
|
Flags = 1;
|
|
break;
|
|
}
|
|
|
|
Status = TCPTranslateError
|
|
( OskitTCPShutdown( Connection->SocketContext, Flags ) );
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("finished %x\n", Status));
|
|
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS TCPClose
|
|
( PCONNECTION_ENDPOINT Connection ) {
|
|
NTSTATUS Status;
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("TCPClose started\n"));
|
|
|
|
ASSERT_LOCKED(&TCPLock);
|
|
|
|
/* Make our code remove all pending IRPs */
|
|
Connection->State |= SEL_FIN;
|
|
DrainSignals();
|
|
|
|
Status = TCPTranslateError( OskitTCPClose( Connection->SocketContext ) );
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("TCPClose finished %x\n", Status));
|
|
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS TCPReceiveData
|
|
( PCONNECTION_ENDPOINT Connection,
|
|
PNDIS_BUFFER Buffer,
|
|
ULONG ReceiveLength,
|
|
PULONG BytesReceived,
|
|
ULONG ReceiveFlags,
|
|
PTCP_COMPLETION_ROUTINE Complete,
|
|
PVOID Context ) {
|
|
PVOID DataBuffer;
|
|
UINT DataLen, Received = 0;
|
|
NTSTATUS Status;
|
|
PTDI_BUCKET Bucket;
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("Called for %d bytes (on socket %x)\n",
|
|
ReceiveLength, Connection->SocketContext));
|
|
|
|
ASSERT_LOCKED(&TCPLock);
|
|
|
|
ASSERT_KM_POINTER(Connection->SocketContext);
|
|
|
|
/* Closing */
|
|
if (Connection->State & SEL_FIN)
|
|
{
|
|
*BytesReceived = 0;
|
|
return STATUS_REMOTE_DISCONNECT;
|
|
}
|
|
|
|
NdisQueryBuffer( Buffer, &DataBuffer, &DataLen );
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("TCP>|< Got an MDL %x (%x:%d)\n", Buffer, DataBuffer, DataLen));
|
|
|
|
Status = TCPTranslateError
|
|
( OskitTCPRecv
|
|
( Connection->SocketContext,
|
|
DataBuffer,
|
|
DataLen,
|
|
&Received,
|
|
ReceiveFlags ) );
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("OskitTCPReceive: %x, %d\n", Status, Received));
|
|
|
|
/* Keep this request around ... there was no data yet */
|
|
if( Status == STATUS_PENDING ) {
|
|
/* Freed in TCPSocketState */
|
|
Bucket = exAllocatePool( NonPagedPool, sizeof(*Bucket) );
|
|
if( !Bucket ) {
|
|
TI_DbgPrint(DEBUG_TCP,("Failed to allocate bucket\n"));
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
|
|
Bucket->Request.RequestNotifyObject = Complete;
|
|
Bucket->Request.RequestContext = Context;
|
|
*BytesReceived = 0;
|
|
|
|
IoMarkIrpPending((PIRP)Context);
|
|
|
|
ExInterlockedInsertTailList( &Connection->ReceiveRequest, &Bucket->Entry, &Connection->Lock );
|
|
TI_DbgPrint(DEBUG_TCP,("Queued read irp\n"));
|
|
} else {
|
|
TI_DbgPrint(DEBUG_TCP,("Got status %x, bytes %d\n", Status, Received));
|
|
*BytesReceived = Received;
|
|
}
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("Status %x\n", Status));
|
|
|
|
return Status;
|
|
}
|
|
|
|
NTSTATUS TCPSendData
|
|
( PCONNECTION_ENDPOINT Connection,
|
|
PCHAR BufferData,
|
|
ULONG SendLength,
|
|
PULONG BytesSent,
|
|
ULONG Flags,
|
|
PTCP_COMPLETION_ROUTINE Complete,
|
|
PVOID Context ) {
|
|
UINT Sent = 0;
|
|
NTSTATUS Status;
|
|
PTDI_BUCKET Bucket;
|
|
|
|
ASSERT_LOCKED(&TCPLock);
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("Called for %d bytes (on socket %x)\n",
|
|
SendLength, Connection->SocketContext));
|
|
|
|
ASSERT_KM_POINTER(Connection->SocketContext);
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("Connection = %x\n", Connection));
|
|
TI_DbgPrint(DEBUG_TCP,("Connection->SocketContext = %x\n",
|
|
Connection->SocketContext));
|
|
|
|
/* Closing */
|
|
if (Connection->State & SEL_FIN)
|
|
{
|
|
*BytesSent = 0;
|
|
return STATUS_REMOTE_DISCONNECT;
|
|
}
|
|
|
|
Status = TCPTranslateError
|
|
( OskitTCPSend( Connection->SocketContext,
|
|
(OSK_PCHAR)BufferData, SendLength,
|
|
&Sent, 0 ) );
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("OskitTCPSend: %x, %d\n", Status, Sent));
|
|
|
|
/* Keep this request around ... there was no data yet */
|
|
if( Status == STATUS_PENDING ) {
|
|
/* Freed in TCPSocketState */
|
|
Bucket = exAllocatePool( NonPagedPool, sizeof(*Bucket) );
|
|
if( !Bucket ) {
|
|
TI_DbgPrint(DEBUG_TCP,("Failed to allocate bucket\n"));
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
|
|
Bucket->Request.RequestNotifyObject = Complete;
|
|
Bucket->Request.RequestContext = Context;
|
|
*BytesSent = 0;
|
|
|
|
IoMarkIrpPending((PIRP)Context);
|
|
|
|
ExInterlockedInsertTailList( &Connection->SendRequest, &Bucket->Entry, &Connection->Lock );
|
|
TI_DbgPrint(DEBUG_TCP,("Queued write irp\n"));
|
|
} else {
|
|
TI_DbgPrint(DEBUG_TCP,("Got status %x, bytes %d\n", Status, Sent));
|
|
*BytesSent = Sent;
|
|
}
|
|
|
|
TI_DbgPrint(DEBUG_TCP,("Status %x\n", Status));
|
|
|
|
return Status;
|
|
}
|
|
|
|
VOID TCPTimeout(VOID) {
|
|
/* Now handled by TimerThread */
|
|
}
|
|
|
|
UINT TCPAllocatePort( UINT HintPort ) {
|
|
if( HintPort ) {
|
|
if( AllocatePort( &TCPPorts, HintPort ) ) return HintPort;
|
|
else {
|
|
TI_DbgPrint
|
|
(MID_TRACE,("We got a hint port but couldn't allocate it\n"));
|
|
return (UINT)-1;
|
|
}
|
|
} else return AllocatePortFromRange( &TCPPorts, 1024, 5000 );
|
|
}
|
|
|
|
VOID TCPFreePort( UINT Port ) {
|
|
DeallocatePort( &TCPPorts, Port );
|
|
}
|
|
|
|
NTSTATUS TCPGetSockAddress
|
|
( PCONNECTION_ENDPOINT Connection,
|
|
PTRANSPORT_ADDRESS Address,
|
|
BOOLEAN GetRemote ) {
|
|
OSK_UINT LocalAddress, RemoteAddress;
|
|
OSK_UI16 LocalPort, RemotePort;
|
|
PTA_IP_ADDRESS AddressIP = (PTA_IP_ADDRESS)Address;
|
|
|
|
ASSERT_LOCKED(&TCPLock);
|
|
|
|
OskitTCPGetAddress
|
|
( Connection->SocketContext,
|
|
&LocalAddress, &LocalPort,
|
|
&RemoteAddress, &RemotePort );
|
|
|
|
AddressIP->TAAddressCount = 1;
|
|
AddressIP->Address[0].AddressLength = TDI_ADDRESS_LENGTH_IP;
|
|
AddressIP->Address[0].AddressType = TDI_ADDRESS_TYPE_IP;
|
|
AddressIP->Address[0].Address[0].sin_port = GetRemote ? RemotePort : LocalPort;
|
|
AddressIP->Address[0].Address[0].in_addr = GetRemote ? RemoteAddress : LocalAddress;
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
VOID TCPRemoveIRP( PCONNECTION_ENDPOINT Endpoint, PIRP Irp ) {
|
|
PLIST_ENTRY Entry;
|
|
PLIST_ENTRY ListHead[4];
|
|
KIRQL OldIrql;
|
|
PTDI_BUCKET Bucket;
|
|
UINT i = 0;
|
|
|
|
ListHead[0] = &Endpoint->SendRequest;
|
|
ListHead[1] = &Endpoint->ReceiveRequest;
|
|
ListHead[2] = &Endpoint->ConnectRequest;
|
|
ListHead[3] = &Endpoint->ListenRequest;
|
|
|
|
TcpipAcquireSpinLock( &Endpoint->Lock, &OldIrql );
|
|
|
|
for( i = 0; i < 4; i++ )
|
|
{
|
|
for( Entry = ListHead[i]->Flink;
|
|
Entry != ListHead[i];
|
|
Entry = Entry->Flink )
|
|
{
|
|
Bucket = CONTAINING_RECORD( Entry, TDI_BUCKET, Entry );
|
|
if( Bucket->Request.RequestContext == Irp )
|
|
{
|
|
RemoveEntryList( &Bucket->Entry );
|
|
exFreePool( Bucket );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
TcpipReleaseSpinLock( &Endpoint->Lock, OldIrql );
|
|
}
|
|
|
|
/* EOF */
|