2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * FILE: drivers/net/afd/afd/main.c
5 * PURPOSE: Ancillary functions driver
6 * PROGRAMMER: Art Yerkes (ayerkes@speakeasy.net)
10 * Suggestions: Uniform naming (AfdXxx)
19 /* See debug.h for debug/trace constants */
20 //DWORD DebugTraceLevel = DEBUG_ULTRA;
21 DWORD DebugTraceLevel
= MIN_TRACE
;
25 void OskitDumpBuffer( PCHAR Data
, UINT Len
) {
28 for( i
= 0; i
< Len
; i
++ ) {
29 if( i
&& !(i
& 0xf) ) DbgPrint( "\n" );
30 if( !(i
& 0xf) ) DbgPrint( "%08x: ", (UINT
)(Data
+ i
) );
31 DbgPrint( " %02x", Data
[i
] & 0xff );
39 DriverEntry(PDRIVER_OBJECT DriverObject
, PUNICODE_STRING RegistryPath
);
42 AfdGetDisconnectOptions(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
43 PIO_STACK_LOCATION IrpSp
)
45 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
46 PAFD_FCB FCB
= FileObject
->FsContext
;
47 UINT BufferSize
= IrpSp
->Parameters
.DeviceIoControl
.OutputBufferLength
;
49 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
51 if (FCB
->DisconnectOptionsSize
== 0)
53 AFD_DbgPrint(MIN_TRACE
,("Invalid parameter\n"));
54 return UnlockAndMaybeComplete(FCB
, STATUS_INVALID_PARAMETER
, Irp
, 0);
57 ASSERT(FCB
->DisconnectOptions
);
59 if (FCB
->FilledDisconnectOptions
< BufferSize
) BufferSize
= FCB
->FilledDisconnectOptions
;
61 RtlCopyMemory(Irp
->UserBuffer
,
62 FCB
->DisconnectOptions
,
65 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, BufferSize
);
70 AfdSetDisconnectOptions(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
71 PIO_STACK_LOCATION IrpSp
)
73 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
74 PAFD_FCB FCB
= FileObject
->FsContext
;
75 PVOID DisconnectOptions
= LockRequest(Irp
, IrpSp
, FALSE
, NULL
);
76 UINT DisconnectOptionsSize
= IrpSp
->Parameters
.DeviceIoControl
.InputBufferLength
;
78 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
80 if (!DisconnectOptions
)
81 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
83 if (FCB
->DisconnectOptions
)
85 ExFreePool(FCB
->DisconnectOptions
);
86 FCB
->DisconnectOptions
= NULL
;
87 FCB
->DisconnectOptionsSize
= 0;
88 FCB
->FilledDisconnectOptions
= 0;
91 FCB
->DisconnectOptions
= ExAllocatePool(PagedPool
, DisconnectOptionsSize
);
92 if (!FCB
->DisconnectOptions
)
93 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
95 RtlCopyMemory(FCB
->DisconnectOptions
,
97 DisconnectOptionsSize
);
99 FCB
->DisconnectOptionsSize
= DisconnectOptionsSize
;
101 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
106 AfdSetDisconnectOptionsSize(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
107 PIO_STACK_LOCATION IrpSp
)
109 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
110 PAFD_FCB FCB
= FileObject
->FsContext
;
111 PUINT DisconnectOptionsSize
= LockRequest(Irp
, IrpSp
, FALSE
, NULL
);
112 UINT BufferSize
= IrpSp
->Parameters
.DeviceIoControl
.InputBufferLength
;
114 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
116 if (!DisconnectOptionsSize
)
117 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
119 if (BufferSize
< sizeof(UINT
))
121 AFD_DbgPrint(MIN_TRACE
,("Buffer too small\n"));
122 return UnlockAndMaybeComplete(FCB
, STATUS_BUFFER_TOO_SMALL
, Irp
, 0);
125 if (FCB
->DisconnectOptions
)
127 ExFreePool(FCB
->DisconnectOptions
);
128 FCB
->DisconnectOptionsSize
= 0;
129 FCB
->FilledDisconnectOptions
= 0;
132 FCB
->DisconnectOptions
= ExAllocatePool(PagedPool
, *DisconnectOptionsSize
);
133 if (!FCB
->DisconnectOptions
) return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
135 FCB
->DisconnectOptionsSize
= *DisconnectOptionsSize
;
137 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
141 AfdGetDisconnectData(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
142 PIO_STACK_LOCATION IrpSp
)
144 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
145 PAFD_FCB FCB
= FileObject
->FsContext
;
146 UINT BufferSize
= IrpSp
->Parameters
.DeviceIoControl
.OutputBufferLength
;
148 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
150 if (FCB
->DisconnectDataSize
== 0)
152 AFD_DbgPrint(MIN_TRACE
,("Invalid parameter\n"));
153 return UnlockAndMaybeComplete(FCB
, STATUS_INVALID_PARAMETER
, Irp
, 0);
156 ASSERT(FCB
->DisconnectData
);
158 if (FCB
->FilledDisconnectData
< BufferSize
)
159 BufferSize
= FCB
->FilledDisconnectData
;
161 RtlCopyMemory(Irp
->UserBuffer
,
165 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, BufferSize
);
170 AfdSetDisconnectData(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
171 PIO_STACK_LOCATION IrpSp
)
173 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
174 PAFD_FCB FCB
= FileObject
->FsContext
;
175 PVOID DisconnectData
= LockRequest(Irp
, IrpSp
, FALSE
, NULL
);
176 UINT DisconnectDataSize
= IrpSp
->Parameters
.DeviceIoControl
.InputBufferLength
;
178 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
181 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
183 if (FCB
->DisconnectData
)
185 ExFreePool(FCB
->DisconnectData
);
186 FCB
->DisconnectData
= NULL
;
187 FCB
->DisconnectDataSize
= 0;
188 FCB
->FilledDisconnectData
= 0;
191 FCB
->DisconnectData
= ExAllocatePool(PagedPool
, DisconnectDataSize
);
192 if (!FCB
->DisconnectData
)
193 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
195 RtlCopyMemory(FCB
->DisconnectData
,
199 FCB
->DisconnectDataSize
= DisconnectDataSize
;
201 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
206 AfdSetDisconnectDataSize(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
207 PIO_STACK_LOCATION IrpSp
)
209 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
210 PAFD_FCB FCB
= FileObject
->FsContext
;
211 PUINT DisconnectDataSize
= LockRequest(Irp
, IrpSp
, FALSE
, NULL
);
212 UINT BufferSize
= IrpSp
->Parameters
.DeviceIoControl
.InputBufferLength
;
214 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
216 if (!DisconnectDataSize
)
217 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
219 if (BufferSize
< sizeof(UINT
))
221 AFD_DbgPrint(MIN_TRACE
,("Buffer too small\n"));
222 return UnlockAndMaybeComplete(FCB
, STATUS_BUFFER_TOO_SMALL
, Irp
, 0);
225 if (FCB
->DisconnectData
)
227 ExFreePool(FCB
->DisconnectData
);
228 FCB
->DisconnectDataSize
= 0;
229 FCB
->FilledDisconnectData
= 0;
232 FCB
->DisconnectData
= ExAllocatePool(PagedPool
, *DisconnectDataSize
);
233 if (!FCB
->DisconnectData
)
234 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
236 FCB
->DisconnectDataSize
= *DisconnectDataSize
;
238 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
241 static NTSTATUS NTAPI
242 AfdGetTdiHandles(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
243 PIO_STACK_LOCATION IrpSp
)
245 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
246 PAFD_FCB FCB
= FileObject
->FsContext
;
247 PULONG HandleFlags
= LockRequest(Irp
, IrpSp
, TRUE
, NULL
);
248 PAFD_TDI_HANDLE_DATA HandleData
= Irp
->UserBuffer
;
250 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
253 return UnlockAndMaybeComplete(FCB
, STATUS_NO_MEMORY
, Irp
, 0);
255 if (IrpSp
->Parameters
.DeviceIoControl
.InputBufferLength
< sizeof(ULONG
) ||
256 IrpSp
->Parameters
.DeviceIoControl
.OutputBufferLength
< sizeof(*HandleData
))
258 AFD_DbgPrint(MIN_TRACE
,("Buffer too small\n"));
259 return UnlockAndMaybeComplete(FCB
, STATUS_BUFFER_TOO_SMALL
, Irp
, 0);
262 if ((*HandleFlags
) & AFD_ADDRESS_HANDLE
)
263 HandleData
->TdiAddressHandle
= FCB
->AddressFile
.Handle
;
265 if ((*HandleFlags
) & AFD_CONNECTION_HANDLE
)
266 HandleData
->TdiConnectionHandle
= FCB
->Connection
.Handle
;
268 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
271 static NTSTATUS NTAPI
272 AfdCreateSocket(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
273 PIO_STACK_LOCATION IrpSp
) {
275 PFILE_OBJECT FileObject
;
276 PAFD_DEVICE_EXTENSION DeviceExt
;
277 PFILE_FULL_EA_INFORMATION EaInfo
;
278 PAFD_CREATE_PACKET ConnectInfo
= NULL
;
280 PWCHAR EaInfoValue
= NULL
;
283 NTSTATUS Status
= STATUS_SUCCESS
;
285 AFD_DbgPrint(MID_TRACE
,("AfdCreate(DeviceObject %p Irp %p)\n",
288 DeviceExt
= DeviceObject
->DeviceExtension
;
289 FileObject
= IrpSp
->FileObject
;
290 //Disposition = (IrpSp->Parameters.Create.Options >> 24) & 0xff;
292 Irp
->IoStatus
.Information
= 0;
294 EaInfo
= Irp
->AssociatedIrp
.SystemBuffer
;
297 ConnectInfo
= (PAFD_CREATE_PACKET
)(EaInfo
->EaName
+ EaInfo
->EaNameLength
+ 1);
298 EaInfoValue
= (PWCHAR
)(((PCHAR
)ConnectInfo
) + sizeof(AFD_CREATE_PACKET
));
300 //EaLength = sizeof(FILE_FULL_EA_INFORMATION) + EaInfo->EaNameLength + EaInfo->EaValueLength;
302 AFD_DbgPrint(MID_TRACE
,("EaInfo: %x, EaInfoValue: %x\n",
303 EaInfo
, EaInfoValue
));
306 AFD_DbgPrint(MID_TRACE
,("About to allocate the new FCB\n"));
308 FCB
= ExAllocatePool(NonPagedPool
, sizeof(AFD_FCB
));
310 Irp
->IoStatus
.Status
= STATUS_NO_MEMORY
;
311 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
312 return STATUS_NO_MEMORY
;
315 AFD_DbgPrint(MID_TRACE
,("Initializing the new FCB @ %x (FileObject %x Flags %x)\n",
316 FCB
, FileObject
, ConnectInfo
? ConnectInfo
->EndpointFlags
: 0));
318 RtlZeroMemory( FCB
, sizeof( *FCB
) );
320 FCB
->Flags
= ConnectInfo
? ConnectInfo
->EndpointFlags
: 0;
321 FCB
->GroupID
= ConnectInfo
? ConnectInfo
->GroupID
: 0;
322 FCB
->GroupType
= 0; /* FIXME */
323 FCB
->State
= SOCKET_STATE_CREATED
;
324 FCB
->FileObject
= FileObject
;
325 FCB
->DeviceExt
= DeviceExt
;
326 FCB
->AddressFile
.Handle
= INVALID_HANDLE_VALUE
;
327 FCB
->Connection
.Handle
= INVALID_HANDLE_VALUE
;
329 KeInitializeMutex( &FCB
->Mutex
, 0 );
331 for( i
= 0; i
< MAX_FUNCTIONS
; i
++ ) {
332 InitializeListHead( &FCB
->PendingIrpList
[i
] );
335 InitializeListHead( &FCB
->DatagramList
);
336 InitializeListHead( &FCB
->PendingConnections
);
338 AFD_DbgPrint(MID_TRACE
,("%x: Checking command channel\n", FCB
));
341 FCB
->TdiDeviceName
.Length
= ConnectInfo
->SizeOfTransportName
;
342 FCB
->TdiDeviceName
.MaximumLength
= FCB
->TdiDeviceName
.Length
;
343 FCB
->TdiDeviceName
.Buffer
=
344 ExAllocatePool( NonPagedPool
, FCB
->TdiDeviceName
.Length
);
346 if( !FCB
->TdiDeviceName
.Buffer
) {
348 AFD_DbgPrint(MID_TRACE
,("Could not copy target string\n"));
349 Irp
->IoStatus
.Status
= STATUS_NO_MEMORY
;
350 IoCompleteRequest( Irp
, IO_NETWORK_INCREMENT
);
351 return STATUS_NO_MEMORY
;
354 RtlCopyMemory( FCB
->TdiDeviceName
.Buffer
,
355 ConnectInfo
->TransportName
,
356 FCB
->TdiDeviceName
.Length
);
358 AFD_DbgPrint(MID_TRACE
,("Success: %s %wZ\n",
359 EaInfo
->EaName
, &FCB
->TdiDeviceName
));
361 AFD_DbgPrint(MID_TRACE
,("Success: Control connection\n"));
364 FileObject
->FsContext
= FCB
;
366 /* It seems that UDP sockets are writable from inception */
367 if( FCB
->Flags
& AFD_ENDPOINT_CONNECTIONLESS
) {
368 AFD_DbgPrint(MID_TRACE
,("Packet oriented socket\n"));
370 /* A datagram socket is always sendable */
371 FCB
->PollState
|= AFD_EVENT_SEND
;
372 FCB
->PollStatus
[FD_WRITE_BIT
] = STATUS_SUCCESS
;
373 PollReeval( FCB
->DeviceExt
, FCB
->FileObject
);
376 if( !NT_SUCCESS(Status
) ) {
377 if( FCB
->TdiDeviceName
.Buffer
) ExFreePool( FCB
->TdiDeviceName
.Buffer
);
379 FileObject
->FsContext
= NULL
;
382 Irp
->IoStatus
.Status
= Status
;
383 IoCompleteRequest( Irp
, IO_NETWORK_INCREMENT
);
388 static NTSTATUS NTAPI
389 AfdCleanupSocket(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
390 PIO_STACK_LOCATION IrpSp
)
392 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
393 PAFD_FCB FCB
= FileObject
->FsContext
;
394 PLIST_ENTRY CurrentEntry
, NextEntry
;
398 if( !SocketAcquireStateLock( FCB
) ) return LostSocket(Irp
);
400 for (Function
= 0; Function
< MAX_FUNCTIONS
; Function
++)
402 CurrentEntry
= FCB
->PendingIrpList
[Function
].Flink
;
403 while (CurrentEntry
!= &FCB
->PendingIrpList
[Function
])
405 NextEntry
= CurrentEntry
->Flink
;
406 CurrentIrp
= CONTAINING_RECORD(CurrentEntry
, IRP
, Tail
.Overlay
.ListEntry
);
408 /* The cancel routine will remove the IRP from the list */
409 IoCancelIrp(CurrentIrp
);
411 CurrentEntry
= NextEntry
;
415 KillSelectsForFCB( FCB
->DeviceExt
, FileObject
, FALSE
);
417 return UnlockAndMaybeComplete(FCB
, STATUS_SUCCESS
, Irp
, 0);
420 static NTSTATUS NTAPI
421 AfdCloseSocket(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
422 PIO_STACK_LOCATION IrpSp
)
424 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
425 PAFD_FCB FCB
= FileObject
->FsContext
;
427 PAFD_IN_FLIGHT_REQUEST InFlightRequest
[IN_FLIGHT_REQUESTS
];
428 PAFD_TDI_OBJECT_QELT Qelt
;
429 PLIST_ENTRY QeltEntry
;
432 AFD_DbgPrint(MID_TRACE
,("AfdClose(DeviceObject %p Irp %p)\n",
435 if( !SocketAcquireStateLock( FCB
) ) return STATUS_FILE_CLOSED
;
437 FCB
->State
= SOCKET_STATE_CLOSED
;
439 InFlightRequest
[0] = &FCB
->ListenIrp
;
440 InFlightRequest
[1] = &FCB
->ReceiveIrp
;
441 InFlightRequest
[2] = &FCB
->SendIrp
;
442 InFlightRequest
[3] = &FCB
->ConnectIrp
;
443 InFlightRequest
[4] = &FCB
->DisconnectIrp
;
445 /* Cancel our pending requests */
446 for( i
= 0; i
< IN_FLIGHT_REQUESTS
; i
++ ) {
447 if( InFlightRequest
[i
]->InFlightRequest
) {
448 AFD_DbgPrint(MID_TRACE
,("Cancelling in flight irp %d (%x)\n",
449 i
, InFlightRequest
[i
]->InFlightRequest
));
450 IoCancelIrp(InFlightRequest
[i
]->InFlightRequest
);
454 KillSelectsForFCB( FCB
->DeviceExt
, FileObject
, FALSE
);
456 ASSERT(IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_CONNECT
]));
457 ASSERT(IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_SEND
]));
458 ASSERT(IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_RECV
]));
459 ASSERT(IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_PREACCEPT
]));
460 ASSERT(IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_DISCONNECT
]));
462 while (!IsListEmpty(&FCB
->PendingConnections
))
464 QeltEntry
= RemoveHeadList(&FCB
->PendingConnections
);
465 Qelt
= CONTAINING_RECORD(QeltEntry
, AFD_TDI_OBJECT_QELT
, ListEntry
);
467 /* We have to close all pending connections or the listen won't get closed */
468 TdiDisassociateAddressFile(Qelt
->Object
.Object
);
469 ObDereferenceObject(Qelt
->Object
.Object
);
470 ZwClose(Qelt
->Object
.Handle
);
475 SocketStateUnlock( FCB
);
477 if( FCB
->EventSelect
)
478 ObDereferenceObject( FCB
->EventSelect
);
481 ExFreePool( FCB
->Context
);
483 if( FCB
->Recv
.Window
)
484 ExFreePool( FCB
->Recv
.Window
);
486 if( FCB
->Send
.Window
)
487 ExFreePool( FCB
->Send
.Window
);
489 if( FCB
->AddressFrom
)
490 ExFreePool( FCB
->AddressFrom
);
492 if( FCB
->ConnectCallInfo
)
493 ExFreePool( FCB
->ConnectCallInfo
);
495 if( FCB
->ConnectReturnInfo
)
496 ExFreePool( FCB
->ConnectReturnInfo
);
498 if( FCB
->ConnectData
)
499 ExFreePool( FCB
->ConnectData
);
501 if( FCB
->DisconnectData
)
502 ExFreePool( FCB
->DisconnectData
);
504 if( FCB
->ConnectOptions
)
505 ExFreePool( FCB
->ConnectOptions
);
507 if( FCB
->DisconnectOptions
)
508 ExFreePool( FCB
->DisconnectOptions
);
510 if( FCB
->LocalAddress
)
511 ExFreePool( FCB
->LocalAddress
);
513 if( FCB
->RemoteAddress
)
514 ExFreePool( FCB
->RemoteAddress
);
516 if( FCB
->Connection
.Object
)
518 TdiDisassociateAddressFile(FCB
->Connection
.Object
);
519 ObDereferenceObject(FCB
->Connection
.Object
);
522 if( FCB
->AddressFile
.Object
)
523 ObDereferenceObject(FCB
->AddressFile
.Object
);
525 if( FCB
->AddressFile
.Handle
!= INVALID_HANDLE_VALUE
)
527 if (ZwClose(FCB
->AddressFile
.Handle
) == STATUS_INVALID_HANDLE
)
529 DbgPrint("INVALID ADDRESS FILE HANDLE VALUE: %x %x\n", FCB
->AddressFile
.Handle
, FCB
->AddressFile
.Object
);
533 if( FCB
->Connection
.Handle
!= INVALID_HANDLE_VALUE
)
535 if (ZwClose(FCB
->Connection
.Handle
) == STATUS_INVALID_HANDLE
)
537 DbgPrint("INVALID CONNECTION HANDLE VALUE: %x %x\n", FCB
->Connection
.Handle
, FCB
->Connection
.Object
);
541 if( FCB
->TdiDeviceName
.Buffer
)
542 ExFreePool(FCB
->TdiDeviceName
.Buffer
);
546 Irp
->IoStatus
.Status
= STATUS_SUCCESS
;
547 Irp
->IoStatus
.Information
= 0;
548 IoCompleteRequest(Irp
, IO_NETWORK_INCREMENT
);
550 AFD_DbgPrint(MID_TRACE
, ("Returning success.\n"));
552 return STATUS_SUCCESS
;
558 DisconnectComplete(PDEVICE_OBJECT DeviceObject
,
562 PAFD_FCB FCB
= Context
;
564 PLIST_ENTRY CurrentEntry
;
566 if (!SocketAcquireStateLock(FCB
))
567 return STATUS_FILE_CLOSED
;
569 ASSERT(FCB
->DisconnectIrp
.InFlightRequest
== Irp
);
570 FCB
->DisconnectIrp
.InFlightRequest
= NULL
;
572 ASSERT(FCB
->DisconnectPending
);
573 ASSERT((IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_SEND
]) && !FCB
->SendIrp
.InFlightRequest
) ||
574 (FCB
->DisconnectFlags
& TDI_DISCONNECT_ABORT
));
576 if (NT_SUCCESS(Irp
->IoStatus
.Status
) && (FCB
->DisconnectFlags
& TDI_DISCONNECT_RELEASE
))
578 FCB
->FilledDisconnectData
= MIN(FCB
->DisconnectDataSize
, FCB
->ConnectReturnInfo
->UserDataLength
);
579 if (FCB
->FilledDisconnectData
)
581 RtlCopyMemory(FCB
->DisconnectData
,
582 FCB
->ConnectReturnInfo
->UserData
,
583 FCB
->FilledDisconnectData
);
586 FCB
->FilledDisconnectOptions
= MIN(FCB
->DisconnectOptionsSize
, FCB
->ConnectReturnInfo
->OptionsLength
);
587 if (FCB
->FilledDisconnectOptions
)
589 RtlCopyMemory(FCB
->DisconnectOptions
,
590 FCB
->ConnectReturnInfo
->Options
,
591 FCB
->FilledDisconnectOptions
);
595 FCB
->DisconnectPending
= FALSE
;
597 while (!IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_DISCONNECT
]))
599 CurrentEntry
= RemoveHeadList(&FCB
->PendingIrpList
[FUNCTION_DISCONNECT
]);
600 CurrentIrp
= CONTAINING_RECORD(CurrentEntry
, IRP
, Tail
.Overlay
.ListEntry
);
601 CurrentIrp
->IoStatus
.Status
= Irp
->IoStatus
.Status
;
602 CurrentIrp
->IoStatus
.Information
= 0;
603 UnlockRequest(CurrentIrp
, IoGetCurrentIrpStackLocation(CurrentIrp
));
604 (void)IoSetCancelRoutine(CurrentIrp
, NULL
);
605 IoCompleteRequest(CurrentIrp
, IO_NETWORK_INCREMENT
);
608 if (!(FCB
->DisconnectFlags
& TDI_DISCONNECT_RELEASE
))
610 /* Signal complete connection closure immediately */
611 FCB
->PollState
|= AFD_EVENT_ABORT
;
612 FCB
->PollStatus
[FD_CLOSE_BIT
] = Irp
->IoStatus
.Status
;
613 PollReeval(FCB
->DeviceExt
, FCB
->FileObject
);
616 SocketStateUnlock(FCB
);
618 return Irp
->IoStatus
.Status
;
623 DoDisconnect(PAFD_FCB FCB
)
627 ASSERT(FCB
->DisconnectPending
);
628 ASSERT((IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_SEND
]) && !FCB
->SendIrp
.InFlightRequest
) ||
629 (FCB
->DisconnectFlags
& TDI_DISCONNECT_ABORT
));
631 if (FCB
->DisconnectIrp
.InFlightRequest
)
633 return STATUS_PENDING
;
636 FCB
->ConnectCallInfo
->UserData
= FCB
->DisconnectData
;
637 FCB
->ConnectCallInfo
->UserDataLength
= FCB
->DisconnectDataSize
;
638 FCB
->ConnectCallInfo
->Options
= FCB
->DisconnectOptions
;
639 FCB
->ConnectCallInfo
->OptionsLength
= FCB
->DisconnectOptionsSize
;
641 Status
= TdiDisconnect(&FCB
->DisconnectIrp
.InFlightRequest
,
642 FCB
->Connection
.Object
,
643 &FCB
->DisconnectTimeout
,
644 FCB
->DisconnectFlags
,
645 &FCB
->DisconnectIrp
.Iosb
,
648 FCB
->ConnectCallInfo
,
649 FCB
->ConnectReturnInfo
);
650 if (Status
!= STATUS_PENDING
)
652 FCB
->DisconnectPending
= FALSE
;
659 RetryDisconnectCompletion(PAFD_FCB FCB
)
661 ASSERT(FCB
->RemoteAddress
);
663 if (IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_SEND
]) && !FCB
->SendIrp
.InFlightRequest
&& FCB
->DisconnectPending
)
665 /* Sends are done; fire off a TDI_DISCONNECT request */
670 static NTSTATUS NTAPI
671 AfdDisconnect(PDEVICE_OBJECT DeviceObject
, PIRP Irp
,
672 PIO_STACK_LOCATION IrpSp
) {
673 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
674 PAFD_FCB FCB
= FileObject
->FsContext
;
675 PAFD_DISCONNECT_INFO DisReq
;
676 NTSTATUS Status
= STATUS_SUCCESS
;
678 PLIST_ENTRY CurrentEntry
;
681 if (!SocketAcquireStateLock(FCB
)) return LostSocket(Irp
);
683 if (!(DisReq
= LockRequest(Irp
, IrpSp
, FALSE
, NULL
)))
684 return UnlockAndMaybeComplete( FCB
, STATUS_NO_MEMORY
,
687 /* Send direction only */
688 if ((DisReq
->DisconnectType
& AFD_DISCONNECT_SEND
) &&
689 !(DisReq
->DisconnectType
& AFD_DISCONNECT_RECV
))
691 /* Perform a controlled disconnect */
692 Flags
= TDI_DISCONNECT_RELEASE
;
694 /* Receive direction or both */
697 /* Mark that we can't issue another receive request */
698 FCB
->TdiReceiveClosed
= TRUE
;
700 /* Try to cancel a pending TDI receive IRP if there was one in progress */
701 if (FCB
->ReceiveIrp
.InFlightRequest
)
702 IoCancelIrp(FCB
->ReceiveIrp
.InFlightRequest
);
704 /* Discard any pending data */
705 FCB
->Recv
.Content
= 0;
706 FCB
->Recv
.BytesUsed
= 0;
708 /* Mark us as overread to complete future reads with an error */
709 FCB
->Overread
= TRUE
;
711 /* Set a successful close status to indicate a shutdown on overread */
712 FCB
->PollStatus
[FD_CLOSE_BIT
] = STATUS_SUCCESS
;
714 /* Clear the receive event */
715 FCB
->PollState
&= ~AFD_EVENT_RECEIVE
;
717 /* Receive direction only */
718 if ((DisReq
->DisconnectType
& AFD_DISCONNECT_RECV
) &&
719 !(DisReq
->DisconnectType
& AFD_DISCONNECT_SEND
))
721 /* No need to tell the transport driver for receive direction only */
722 return UnlockAndMaybeComplete( FCB
, STATUS_SUCCESS
, Irp
, 0 );
726 /* Perform an abortive disconnect */
727 Flags
= TDI_DISCONNECT_ABORT
;
731 if (!(FCB
->Flags
& AFD_ENDPOINT_CONNECTIONLESS
))
733 if (!FCB
->ConnectCallInfo
)
735 AFD_DbgPrint(MIN_TRACE
,("Invalid parameter\n"));
736 return UnlockAndMaybeComplete( FCB
, STATUS_INVALID_PARAMETER
,
740 if (FCB
->DisconnectPending
)
742 if (FCB
->DisconnectIrp
.InFlightRequest
)
744 IoCancelIrp(FCB
->DisconnectIrp
.InFlightRequest
);
745 ASSERT(!FCB
->DisconnectIrp
.InFlightRequest
);
749 while (!IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_DISCONNECT
]))
751 CurrentEntry
= RemoveHeadList(&FCB
->PendingIrpList
[FUNCTION_DISCONNECT
]);
752 CurrentIrp
= CONTAINING_RECORD(CurrentEntry
, IRP
, Tail
.Overlay
.ListEntry
);
753 CurrentIrp
->IoStatus
.Status
= STATUS_CANCELLED
;
754 CurrentIrp
->IoStatus
.Information
= 0;
755 UnlockRequest(CurrentIrp
, IoGetCurrentIrpStackLocation(CurrentIrp
));
756 (void)IoSetCancelRoutine(CurrentIrp
, NULL
);
757 IoCompleteRequest(CurrentIrp
, IO_NETWORK_INCREMENT
);
762 FCB
->DisconnectFlags
= Flags
;
763 FCB
->DisconnectTimeout
= DisReq
->Timeout
;
764 FCB
->DisconnectPending
= TRUE
;
765 FCB
->SendClosed
= TRUE
;
766 FCB
->PollState
&= ~AFD_EVENT_SEND
;
768 Status
= QueueUserModeIrp(FCB
, Irp
, FUNCTION_DISCONNECT
);
769 if (Status
== STATUS_PENDING
)
771 if ((IsListEmpty(&FCB
->PendingIrpList
[FUNCTION_SEND
]) && !FCB
->SendIrp
.InFlightRequest
) ||
772 (FCB
->DisconnectFlags
& TDI_DISCONNECT_ABORT
))
774 /* Go ahead and execute the disconnect because we're ready for it */
775 Status
= DoDisconnect(FCB
);
778 if (Status
!= STATUS_PENDING
)
779 RemoveEntryList(&Irp
->Tail
.Overlay
.ListEntry
);
782 if (Status
== STATUS_PENDING
)
784 SocketStateUnlock(FCB
);
791 if (!(Flags
& TDI_DISCONNECT_RELEASE
))
793 if (!FCB
->RemoteAddress
)
795 AFD_DbgPrint(MIN_TRACE
,("Invalid parameter\n"));
796 return UnlockAndMaybeComplete(FCB
, STATUS_INVALID_PARAMETER
, Irp
, 0);
799 ExFreePool(FCB
->RemoteAddress
);
801 FCB
->RemoteAddress
= NULL
;
804 FCB
->PollState
&= ~AFD_EVENT_SEND
;
805 FCB
->SendClosed
= TRUE
;
808 return UnlockAndMaybeComplete( FCB
, Status
, Irp
, 0 );
811 static NTSTATUS NTAPI
812 AfdDispatch(PDEVICE_OBJECT DeviceObject
, PIRP Irp
)
814 PIO_STACK_LOCATION IrpSp
= IoGetCurrentIrpStackLocation(Irp
);
815 NTSTATUS Status
= STATUS_NOT_IMPLEMENTED
;
817 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
820 AFD_DbgPrint(MID_TRACE
,("AfdDispatch: %d\n", IrpSp
->MajorFunction
));
821 if( IrpSp
->MajorFunction
!= IRP_MJ_CREATE
) {
822 AFD_DbgPrint(MID_TRACE
,("FO %x, IrpSp->FO %x\n",
823 FileObject
, IrpSp
->FileObject
));
824 ASSERT(FileObject
== IrpSp
->FileObject
);
827 Irp
->IoStatus
.Information
= 0;
829 switch(IrpSp
->MajorFunction
)
831 /* opening and closing handles to the device */
833 /* Mostly borrowed from the named pipe file system */
834 return AfdCreateSocket(DeviceObject
, Irp
, IrpSp
);
837 /* Ditto the borrowing */
838 return AfdCloseSocket(DeviceObject
, Irp
, IrpSp
);
841 return AfdCleanupSocket(DeviceObject
, Irp
, IrpSp
);
845 return AfdConnectedSocketWriteData( DeviceObject
, Irp
, IrpSp
, TRUE
);
849 return AfdConnectedSocketReadData( DeviceObject
, Irp
, IrpSp
, TRUE
);
851 case IRP_MJ_DEVICE_CONTROL
:
853 switch( IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
) {
855 return AfdBindSocket( DeviceObject
, Irp
, IrpSp
);
857 case IOCTL_AFD_CONNECT
:
858 return AfdStreamSocketConnect( DeviceObject
, Irp
, IrpSp
);
860 case IOCTL_AFD_START_LISTEN
:
861 return AfdListenSocket( DeviceObject
, Irp
, IrpSp
);
864 return AfdConnectedSocketReadData( DeviceObject
, Irp
, IrpSp
,
867 case IOCTL_AFD_SELECT
:
868 return AfdSelect( DeviceObject
, Irp
, IrpSp
);
870 case IOCTL_AFD_EVENT_SELECT
:
871 return AfdEventSelect( DeviceObject
, Irp
, IrpSp
);
873 case IOCTL_AFD_ENUM_NETWORK_EVENTS
:
874 return AfdEnumEvents( DeviceObject
, Irp
, IrpSp
);
876 case IOCTL_AFD_RECV_DATAGRAM
:
877 return AfdPacketSocketReadData( DeviceObject
, Irp
, IrpSp
);
880 return AfdConnectedSocketWriteData( DeviceObject
, Irp
, IrpSp
,
883 case IOCTL_AFD_SEND_DATAGRAM
:
884 return AfdPacketSocketWriteData( DeviceObject
, Irp
, IrpSp
);
886 case IOCTL_AFD_GET_INFO
:
887 return AfdGetInfo( DeviceObject
, Irp
, IrpSp
);
889 case IOCTL_AFD_SET_INFO
:
890 return AfdSetInfo( DeviceObject
, Irp
, IrpSp
);
892 case IOCTL_AFD_GET_CONTEXT_SIZE
:
893 return AfdGetContextSize( DeviceObject
, Irp
, IrpSp
);
895 case IOCTL_AFD_GET_CONTEXT
:
896 return AfdGetContext( DeviceObject
, Irp
, IrpSp
);
898 case IOCTL_AFD_SET_CONTEXT
:
899 return AfdSetContext( DeviceObject
, Irp
, IrpSp
);
901 case IOCTL_AFD_WAIT_FOR_LISTEN
:
902 return AfdWaitForListen( DeviceObject
, Irp
, IrpSp
);
904 case IOCTL_AFD_ACCEPT
:
905 return AfdAccept( DeviceObject
, Irp
, IrpSp
);
907 case IOCTL_AFD_DISCONNECT
:
908 return AfdDisconnect( DeviceObject
, Irp
, IrpSp
);
910 case IOCTL_AFD_GET_SOCK_NAME
:
911 return AfdGetSockName( DeviceObject
, Irp
, IrpSp
);
913 case IOCTL_AFD_GET_PEER_NAME
:
914 return AfdGetPeerName( DeviceObject
, Irp
, IrpSp
);
916 case IOCTL_AFD_GET_CONNECT_DATA
:
917 return AfdGetConnectData(DeviceObject
, Irp
, IrpSp
);
919 case IOCTL_AFD_SET_CONNECT_DATA
:
920 return AfdSetConnectData(DeviceObject
, Irp
, IrpSp
);
922 case IOCTL_AFD_SET_DISCONNECT_DATA
:
923 return AfdSetDisconnectData(DeviceObject
, Irp
, IrpSp
);
925 case IOCTL_AFD_GET_DISCONNECT_DATA
:
926 return AfdGetDisconnectData(DeviceObject
, Irp
, IrpSp
);
928 case IOCTL_AFD_SET_CONNECT_DATA_SIZE
:
929 return AfdSetConnectDataSize(DeviceObject
, Irp
, IrpSp
);
931 case IOCTL_AFD_SET_DISCONNECT_DATA_SIZE
:
932 return AfdSetDisconnectDataSize(DeviceObject
, Irp
, IrpSp
);
934 case IOCTL_AFD_SET_CONNECT_OPTIONS
:
935 return AfdSetConnectOptions(DeviceObject
, Irp
, IrpSp
);
937 case IOCTL_AFD_SET_DISCONNECT_OPTIONS
:
938 return AfdSetDisconnectOptions(DeviceObject
, Irp
, IrpSp
);
940 case IOCTL_AFD_GET_CONNECT_OPTIONS
:
941 return AfdGetConnectOptions(DeviceObject
, Irp
, IrpSp
);
943 case IOCTL_AFD_GET_DISCONNECT_OPTIONS
:
944 return AfdGetDisconnectOptions(DeviceObject
, Irp
, IrpSp
);
946 case IOCTL_AFD_SET_CONNECT_OPTIONS_SIZE
:
947 return AfdSetConnectOptionsSize(DeviceObject
, Irp
, IrpSp
);
949 case IOCTL_AFD_SET_DISCONNECT_OPTIONS_SIZE
:
950 return AfdSetDisconnectOptionsSize(DeviceObject
, Irp
, IrpSp
);
952 case IOCTL_AFD_GET_TDI_HANDLES
:
953 return AfdGetTdiHandles(DeviceObject
, Irp
, IrpSp
);
955 case IOCTL_AFD_DEFER_ACCEPT
:
956 DbgPrint("IOCTL_AFD_DEFER_ACCEPT is UNIMPLEMENTED!\n");
959 case IOCTL_AFD_GET_PENDING_CONNECT_DATA
:
960 DbgPrint("IOCTL_AFD_GET_PENDING_CONNECT_DATA is UNIMPLEMENTED!\n");
963 case IOCTL_AFD_VALIDATE_GROUP
:
964 DbgPrint("IOCTL_AFD_VALIDATE_GROUP is UNIMPLEMENTED!\n");
968 Status
= STATUS_NOT_SUPPORTED
;
969 DbgPrint("Unknown IOCTL (0x%x)\n",
970 IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
);
976 /* unsupported operations */
979 Status
= STATUS_NOT_IMPLEMENTED
;
980 AFD_DbgPrint(MIN_TRACE
,
981 ("Irp: Unknown Major code was %x\n",
982 IrpSp
->MajorFunction
));
987 AFD_DbgPrint(MID_TRACE
, ("Returning %x\n", Status
));
988 Irp
->IoStatus
.Status
= Status
;
989 IoCompleteRequest(Irp
, IO_NO_INCREMENT
);
994 BOOLEAN
CheckUnlockExtraBuffers(PAFD_FCB FCB
, PIO_STACK_LOCATION IrpSp
)
996 if (FCB
->Flags
& AFD_ENDPOINT_CONNECTIONLESS
)
998 if (IrpSp
->MajorFunction
== IRP_MJ_READ
|| IrpSp
->MajorFunction
== IRP_MJ_WRITE
)
1000 /* read()/write() call - no extra buffers */
1003 else if (IrpSp
->MajorFunction
== IRP_MJ_DEVICE_CONTROL
)
1005 if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_RECV_DATAGRAM
)
1007 /* recvfrom() call - extra buffers */
1010 else if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_RECV
)
1012 /* recv() call - no extra buffers */
1015 else if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_SEND
||
1016 IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_SEND_DATAGRAM
)
1018 /* send()/sendto() call - no extra buffers */
1030 /* Unknown IRP_MJ code */
1037 /* Connection-oriented never has extra buffers */
1043 CleanupPendingIrp(PAFD_FCB FCB
, PIRP Irp
, PIO_STACK_LOCATION IrpSp
, PAFD_ACTIVE_POLL Poll
)
1045 PAFD_RECV_INFO RecvReq
;
1046 PAFD_SEND_INFO SendReq
;
1047 PAFD_POLL_INFO PollReq
;
1049 if (IrpSp
->MajorFunction
== IRP_MJ_READ
)
1051 RecvReq
= GetLockedData(Irp
, IrpSp
);
1052 UnlockBuffers(RecvReq
->BufferArray
, RecvReq
->BufferCount
, CheckUnlockExtraBuffers(FCB
, IrpSp
));
1054 else if (IrpSp
->MajorFunction
== IRP_MJ_WRITE
)
1056 SendReq
= GetLockedData(Irp
, IrpSp
);
1057 UnlockBuffers(SendReq
->BufferArray
, SendReq
->BufferCount
, CheckUnlockExtraBuffers(FCB
, IrpSp
));
1061 ASSERT(IrpSp
->MajorFunction
== IRP_MJ_DEVICE_CONTROL
);
1063 if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_RECV
)
1065 RecvReq
= GetLockedData(Irp
, IrpSp
);
1066 UnlockBuffers(RecvReq
->BufferArray
, RecvReq
->BufferCount
, CheckUnlockExtraBuffers(FCB
, IrpSp
));
1068 else if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_SEND
)
1070 SendReq
= GetLockedData(Irp
, IrpSp
);
1071 UnlockBuffers(SendReq
->BufferArray
, SendReq
->BufferCount
, CheckUnlockExtraBuffers(FCB
, IrpSp
));
1073 else if (IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
== IOCTL_AFD_SELECT
)
1077 PollReq
= Irp
->AssociatedIrp
.SystemBuffer
;
1078 ZeroEvents(PollReq
->Handles
, PollReq
->HandleCount
);
1079 SignalSocket(Poll
, NULL
, PollReq
, STATUS_CANCELLED
);
1085 AfdCancelHandler(PDEVICE_OBJECT DeviceObject
,
1088 PIO_STACK_LOCATION IrpSp
= IoGetCurrentIrpStackLocation(Irp
);
1089 PFILE_OBJECT FileObject
= IrpSp
->FileObject
;
1090 PAFD_FCB FCB
= FileObject
->FsContext
;
1091 ULONG Function
, IoctlCode
;
1093 PLIST_ENTRY CurrentEntry
;
1094 PAFD_DEVICE_EXTENSION DeviceExt
= DeviceObject
->DeviceExtension
;
1096 PAFD_ACTIVE_POLL Poll
;
1098 IoReleaseCancelSpinLock(Irp
->CancelIrql
);
1100 if (!SocketAcquireStateLock(FCB
))
1103 switch (IrpSp
->MajorFunction
)
1105 case IRP_MJ_DEVICE_CONTROL
:
1106 IoctlCode
= IrpSp
->Parameters
.DeviceIoControl
.IoControlCode
;
1110 IoctlCode
= IOCTL_AFD_RECV
;
1114 IoctlCode
= IOCTL_AFD_SEND
;
1119 SocketStateUnlock(FCB
);
1125 case IOCTL_AFD_RECV
:
1126 case IOCTL_AFD_RECV_DATAGRAM
:
1127 Function
= FUNCTION_RECV
;
1130 case IOCTL_AFD_SEND
:
1131 case IOCTL_AFD_SEND_DATAGRAM
:
1132 Function
= FUNCTION_SEND
;
1135 case IOCTL_AFD_CONNECT
:
1136 Function
= FUNCTION_CONNECT
;
1139 case IOCTL_AFD_WAIT_FOR_LISTEN
:
1140 Function
= FUNCTION_PREACCEPT
;
1143 case IOCTL_AFD_SELECT
:
1144 KeAcquireSpinLock(&DeviceExt
->Lock
, &OldIrql
);
1146 CurrentEntry
= DeviceExt
->Polls
.Flink
;
1147 while (CurrentEntry
!= &DeviceExt
->Polls
)
1149 Poll
= CONTAINING_RECORD(CurrentEntry
, AFD_ACTIVE_POLL
, ListEntry
);
1151 if (Irp
== Poll
->Irp
)
1153 CleanupPendingIrp(FCB
, Irp
, IrpSp
, Poll
);
1154 KeReleaseSpinLock(&DeviceExt
->Lock
, OldIrql
);
1155 SocketStateUnlock(FCB
);
1160 CurrentEntry
= CurrentEntry
->Flink
;
1164 KeReleaseSpinLock(&DeviceExt
->Lock
, OldIrql
);
1166 SocketStateUnlock(FCB
);
1168 DbgPrint("WARNING!!! IRP cancellation race could lead to a process hang! (IOCTL_AFD_SELECT)\n");
1171 case IOCTL_AFD_DISCONNECT
:
1172 Function
= FUNCTION_DISCONNECT
;
1177 UnlockAndMaybeComplete(FCB
, STATUS_CANCELLED
, Irp
, 0);
1181 CurrentEntry
= FCB
->PendingIrpList
[Function
].Flink
;
1182 while (CurrentEntry
!= &FCB
->PendingIrpList
[Function
])
1184 CurrentIrp
= CONTAINING_RECORD(CurrentEntry
, IRP
, Tail
.Overlay
.ListEntry
);
1186 if (CurrentIrp
== Irp
)
1188 RemoveEntryList(CurrentEntry
);
1189 CleanupPendingIrp(FCB
, Irp
, IrpSp
, NULL
);
1190 UnlockAndMaybeComplete(FCB
, STATUS_CANCELLED
, Irp
, 0);
1195 CurrentEntry
= CurrentEntry
->Flink
;
1199 SocketStateUnlock(FCB
);
1201 DbgPrint("WARNING!!! IRP cancellation race could lead to a process hang! (Function: %d)\n", Function
);
1205 AfdUnload(PDRIVER_OBJECT DriverObject
)
1210 DriverEntry(PDRIVER_OBJECT DriverObject
, PUNICODE_STRING RegistryPath
)
1212 PDEVICE_OBJECT DeviceObject
;
1213 UNICODE_STRING wstrDeviceName
= RTL_CONSTANT_STRING(L
"\\Device\\Afd");
1214 PAFD_DEVICE_EXTENSION DeviceExt
;
1217 /* register driver routines */
1218 DriverObject
->MajorFunction
[IRP_MJ_CLOSE
] = AfdDispatch
;
1219 DriverObject
->MajorFunction
[IRP_MJ_CREATE
] = AfdDispatch
;
1220 DriverObject
->MajorFunction
[IRP_MJ_CLEANUP
] = AfdDispatch
;
1221 DriverObject
->MajorFunction
[IRP_MJ_WRITE
] = AfdDispatch
;
1222 DriverObject
->MajorFunction
[IRP_MJ_READ
] = AfdDispatch
;
1223 DriverObject
->MajorFunction
[IRP_MJ_DEVICE_CONTROL
] = AfdDispatch
;
1224 DriverObject
->DriverUnload
= AfdUnload
;
1226 Status
= IoCreateDevice(DriverObject
,
1227 sizeof(AFD_DEVICE_EXTENSION
),
1229 FILE_DEVICE_NAMED_PIPE
,
1235 if (!NT_SUCCESS(Status
))
1240 DeviceExt
= DeviceObject
->DeviceExtension
;
1241 KeInitializeSpinLock( &DeviceExt
->Lock
);
1242 InitializeListHead( &DeviceExt
->Polls
);
1244 AFD_DbgPrint(MID_TRACE
,("Device created: object %x ext %x\n",
1245 DeviceObject
, DeviceExt
));