2003-06-21 19:55:55 +00:00
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/* $Id: create.c,v 1.16 2003/06/21 19:55:55 hbirr Exp $
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1999-12-04 20:58:45 +00:00
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*
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1999-11-24 11:51:55 +00:00
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: services/fs/np/create.c
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* PURPOSE: Named pipe filesystem
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* PROGRAMMER: David Welch <welch@cwcom.net>
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*/
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/* INCLUDES ******************************************************************/
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2002-09-08 10:23:54 +00:00
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#include <ddk/ntddk.h>
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2001-05-01 11:09:01 +00:00
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#include "npfs.h"
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2001-10-21 18:58:32 +00:00
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#define NDEBUG
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2001-05-01 11:09:01 +00:00
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#include <debug.h>
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1999-11-24 11:51:55 +00:00
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2000-05-13 13:51:08 +00:00
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/* GLOBALS *******************************************************************/
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1999-11-24 11:51:55 +00:00
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/* FUNCTIONS *****************************************************************/
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2001-05-01 11:09:01 +00:00
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NTSTATUS STDCALL
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NpfsCreate(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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1999-11-24 11:51:55 +00:00
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{
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2000-05-13 13:51:08 +00:00
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PIO_STACK_LOCATION IoStack;
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PFILE_OBJECT FileObject;
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PNPFS_PIPE Pipe;
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2001-07-29 16:41:25 +00:00
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PNPFS_FCB ClientFcb;
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2001-06-12 12:35:42 +00:00
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PNPFS_FCB ServerFcb;
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2000-05-13 13:51:08 +00:00
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PNPFS_PIPE current;
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PLIST_ENTRY current_entry;
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2001-05-01 11:09:01 +00:00
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PNPFS_DEVICE_EXTENSION DeviceExt;
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KIRQL oldIrql;
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2001-10-20 15:30:07 +00:00
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ULONG Disposition;
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2001-05-01 11:09:01 +00:00
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2003-01-19 01:13:04 +00:00
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DPRINT("NpfsCreate(DeviceObject %p Irp %p)\n", DeviceObject, Irp);
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2000-05-13 13:51:08 +00:00
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DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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IoStack = IoGetCurrentIrpStackLocation(Irp);
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FileObject = IoStack->FileObject;
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2001-10-20 15:30:07 +00:00
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Disposition = ((IoStack->Parameters.Create.Options >> 24) & 0xff);
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2001-06-12 12:35:42 +00:00
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DPRINT("FileObject %p\n", FileObject);
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2001-10-20 15:30:07 +00:00
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DPRINT("FileName %wZ\n", &FileObject->FileName);
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2001-10-21 18:58:32 +00:00
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2001-07-29 16:41:25 +00:00
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ClientFcb = ExAllocatePool(NonPagedPool, sizeof(NPFS_FCB));
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if (ClientFcb == NULL)
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2000-05-13 13:51:08 +00:00
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{
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Irp->IoStatus.Status = STATUS_NO_MEMORY;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-11-20 20:35:10 +00:00
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DPRINT("No memory!\n");
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2000-05-13 13:51:08 +00:00
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return(STATUS_NO_MEMORY);
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}
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2001-05-10 23:38:31 +00:00
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KeLockMutex(&DeviceExt->PipeListLock);
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current_entry = DeviceExt->PipeListHead.Flink;
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while (current_entry != &DeviceExt->PipeListHead)
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2000-05-13 13:51:08 +00:00
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{
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current = CONTAINING_RECORD(current_entry,
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2001-05-01 11:09:01 +00:00
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NPFS_PIPE,
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PipeListEntry);
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2000-05-13 13:51:08 +00:00
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2001-10-20 15:30:07 +00:00
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if (RtlCompareUnicodeString(&FileObject->FileName,
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2001-05-10 23:38:31 +00:00
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¤t->PipeName,
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TRUE) == 0)
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2000-05-13 13:51:08 +00:00
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{
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break;
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}
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current_entry = current_entry->Flink;
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}
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2001-05-10 23:38:31 +00:00
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if (current_entry == &DeviceExt->PipeListHead)
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2000-05-13 13:51:08 +00:00
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{
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2001-07-29 16:41:25 +00:00
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ExFreePool(ClientFcb);
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2001-05-10 23:38:31 +00:00
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KeUnlockMutex(&DeviceExt->PipeListLock);
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2000-05-13 13:51:08 +00:00
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Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-10-20 15:30:07 +00:00
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DPRINT("No pipe found!\n");
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2000-05-13 13:51:08 +00:00
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2001-10-20 15:30:07 +00:00
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return(STATUS_OBJECT_NAME_NOT_FOUND);
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2000-05-13 13:51:08 +00:00
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}
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Pipe = current;
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2001-07-29 16:41:25 +00:00
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ClientFcb->Pipe = Pipe;
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ClientFcb->PipeEnd = FILE_PIPE_CLIENT_END;
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ClientFcb->OtherSide = NULL;
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ClientFcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
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2001-11-20 20:35:10 +00:00
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/* initialize data list */
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2003-06-21 19:55:55 +00:00
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if (Pipe->InboundQuota)
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{
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ClientFcb->Data = ExAllocatePool(NonPagedPool, Pipe->InboundQuota);
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if (ClientFcb->Data == NULL)
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{
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ExFreePool(ClientFcb);
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KeUnlockMutex(&DeviceExt->PipeListLock);
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Irp->IoStatus.Status = STATUS_NO_MEMORY;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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DPRINT("No memory!\n");
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return(STATUS_NO_MEMORY);
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}
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}
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else
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{
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ClientFcb->Data = NULL;
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}
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ClientFcb->ReadPtr = ClientFcb->Data;
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ClientFcb->WritePtr = ClientFcb->Data;
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ClientFcb->ReadDataAvailable = 0;
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ClientFcb->WriteQuotaAvailable = Pipe->InboundQuota;
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ClientFcb->MaxDataLength = Pipe->InboundQuota;
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2001-11-20 20:35:10 +00:00
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KeInitializeSpinLock(&ClientFcb->DataListLock);
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2001-07-29 16:41:25 +00:00
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KeInitializeEvent(&ClientFcb->ConnectEvent,
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SynchronizationEvent,
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FALSE);
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2003-06-21 19:55:55 +00:00
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KeInitializeEvent(&ClientFcb->Event,
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2001-11-20 20:35:10 +00:00
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SynchronizationEvent,
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FALSE);
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2001-07-29 16:41:25 +00:00
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KeAcquireSpinLock(&Pipe->FcbListLock, &oldIrql);
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InsertTailList(&Pipe->ClientFcbListHead, &ClientFcb->FcbListEntry);
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KeReleaseSpinLock(&Pipe->FcbListLock, oldIrql);
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Pipe->ReferenceCount++;
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KeUnlockMutex(&DeviceExt->PipeListLock);
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2001-10-20 15:30:07 +00:00
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2001-11-20 20:35:10 +00:00
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#if 0
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if (Disposition == OPEN_EXISTING)
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2001-10-20 15:30:07 +00:00
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{
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/* do not connect to listening servers */
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FileObject->FsContext = ClientFcb;
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-11-20 20:35:10 +00:00
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DPRINT("Success!\n");
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2001-10-20 15:30:07 +00:00
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return(STATUS_SUCCESS);
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}
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2001-11-20 20:35:10 +00:00
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#endif
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2001-10-20 15:30:07 +00:00
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2001-07-29 16:41:25 +00:00
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/* search for disconnected or listening server fcb */
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current_entry = Pipe->ServerFcbListHead.Flink;
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while (current_entry != &Pipe->ServerFcbListHead)
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2001-06-12 12:35:42 +00:00
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{
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ServerFcb = CONTAINING_RECORD(current_entry,
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NPFS_FCB,
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FcbListEntry);
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2001-07-29 16:41:25 +00:00
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if ((ServerFcb->PipeState == FILE_PIPE_LISTENING_STATE)
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|| (ServerFcb->PipeState == FILE_PIPE_DISCONNECTED_STATE))
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2001-06-12 12:35:42 +00:00
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{
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DPRINT("Server found! Fcb %p\n", ServerFcb);
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break;
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}
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current_entry = current_entry->Flink;
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}
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2001-07-29 16:41:25 +00:00
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if (current_entry == &Pipe->ServerFcbListHead)
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2001-06-12 12:35:42 +00:00
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{
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DPRINT("No server fcb found!\n");
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2001-10-20 15:30:07 +00:00
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FileObject->FsContext = ClientFcb;
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2001-07-29 16:41:25 +00:00
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Irp->IoStatus.Status = STATUS_SUCCESS;
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2001-06-12 12:35:42 +00:00
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Irp->IoStatus.Information = 0;
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2001-10-20 15:30:07 +00:00
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2001-06-12 12:35:42 +00:00
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-10-20 15:30:07 +00:00
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2001-07-29 16:41:25 +00:00
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return(STATUS_SUCCESS);
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2001-06-12 12:35:42 +00:00
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}
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2000-05-13 13:51:08 +00:00
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2001-07-29 16:41:25 +00:00
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ClientFcb->OtherSide = ServerFcb;
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ServerFcb->OtherSide = ClientFcb;
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ClientFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
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ServerFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
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2001-05-10 23:38:31 +00:00
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2001-07-29 16:41:25 +00:00
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/* FIXME: create data queue(s) */
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2001-06-12 12:35:42 +00:00
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2001-07-29 16:41:25 +00:00
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/* wake server thread */
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2001-06-12 12:35:42 +00:00
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KeSetEvent(&ServerFcb->ConnectEvent, 0, FALSE);
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2001-05-10 23:38:31 +00:00
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2001-07-29 16:41:25 +00:00
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FileObject->FsContext = ClientFcb;
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2000-05-13 13:51:08 +00:00
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2001-10-20 15:30:07 +00:00
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Irp->IoStatus.Status = STATUS_SUCCESS;
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2000-05-13 13:51:08 +00:00
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-11-20 20:35:10 +00:00
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DPRINT("Success!\n");
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2000-05-13 13:51:08 +00:00
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2001-10-20 15:30:07 +00:00
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return(STATUS_SUCCESS);
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2000-03-26 22:00:10 +00:00
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}
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2001-05-10 23:38:31 +00:00
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2001-05-01 11:09:01 +00:00
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NTSTATUS STDCALL
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NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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2000-03-26 22:00:10 +00:00
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{
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PIO_STACK_LOCATION IoStack;
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PFILE_OBJECT FileObject;
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PNPFS_DEVICE_EXTENSION DeviceExt;
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2000-05-13 13:51:08 +00:00
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PNPFS_PIPE Pipe;
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PNPFS_FCB Fcb;
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2000-03-26 22:00:10 +00:00
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KIRQL oldIrql;
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PLIST_ENTRY current_entry;
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2000-05-13 13:51:08 +00:00
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PNPFS_PIPE current;
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2001-05-01 11:09:01 +00:00
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PIO_PIPE_CREATE_BUFFER Buffer;
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2003-01-19 01:13:04 +00:00
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DPRINT("NpfsCreateNamedPipe(DeviceObject %p Irp %p)\n", DeviceObject, Irp);
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1999-11-24 11:51:55 +00:00
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2000-03-26 22:00:10 +00:00
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DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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IoStack = IoGetCurrentIrpStackLocation(Irp);
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FileObject = IoStack->FileObject;
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2001-06-12 12:35:42 +00:00
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DPRINT("FileObject %p\n", FileObject);
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DPRINT("Pipe name %wZ\n", &FileObject->FileName);
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2000-03-26 22:00:10 +00:00
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2001-05-01 11:09:01 +00:00
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Buffer = (PIO_PIPE_CREATE_BUFFER)Irp->Tail.Overlay.AuxiliaryBuffer;
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2000-05-13 13:51:08 +00:00
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Pipe = ExAllocatePool(NonPagedPool, sizeof(NPFS_PIPE));
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if (Pipe == NULL)
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1999-11-24 11:51:55 +00:00
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{
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2000-03-26 22:00:10 +00:00
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Irp->IoStatus.Status = STATUS_NO_MEMORY;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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1999-12-04 20:58:45 +00:00
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return(STATUS_NO_MEMORY);
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1999-11-24 11:51:55 +00:00
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}
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2000-05-13 13:51:08 +00:00
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Fcb = ExAllocatePool(NonPagedPool, sizeof(NPFS_FCB));
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if (Fcb == NULL)
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1999-11-24 11:51:55 +00:00
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{
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2000-05-13 13:51:08 +00:00
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ExFreePool(Pipe);
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2000-03-26 22:00:10 +00:00
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Irp->IoStatus.Status = STATUS_NO_MEMORY;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2000-05-13 13:51:08 +00:00
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return(STATUS_NO_MEMORY);
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1999-11-24 11:51:55 +00:00
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}
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2001-05-10 23:38:31 +00:00
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if (RtlCreateUnicodeString(&Pipe->PipeName, FileObject->FileName.Buffer) == 0)
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2000-05-13 13:51:08 +00:00
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{
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ExFreePool(Pipe);
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2001-05-01 11:09:01 +00:00
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ExFreePool(Fcb);
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2000-05-13 13:51:08 +00:00
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Irp->IoStatus.Status = STATUS_NO_MEMORY;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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2001-05-01 11:09:01 +00:00
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return(STATUS_NO_MEMORY);
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}
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2000-05-13 13:51:08 +00:00
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Pipe->ReferenceCount = 0;
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2001-07-29 16:41:25 +00:00
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InitializeListHead(&Pipe->ServerFcbListHead);
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InitializeListHead(&Pipe->ClientFcbListHead);
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2000-05-13 13:51:08 +00:00
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KeInitializeSpinLock(&Pipe->FcbListLock);
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2001-10-21 18:58:32 +00:00
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2002-05-07 22:40:35 +00:00
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Pipe->PipeType = Buffer->WriteModeMessage ? FILE_PIPE_MESSAGE_TYPE : FILE_PIPE_BYTE_STREAM_TYPE;
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Pipe->PipeWriteMode = Buffer->WriteModeMessage ? FILE_PIPE_MESSAGE_MODE : FILE_PIPE_BYTE_STREAM_MODE;
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Pipe->PipeReadMode = Buffer->ReadModeMessage ? FILE_PIPE_MESSAGE_MODE : FILE_PIPE_BYTE_STREAM_MODE;
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2001-07-29 16:41:25 +00:00
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Pipe->PipeBlockMode = Buffer->NonBlocking;
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Pipe->PipeConfiguration = IoStack->Parameters.Create.Options & 0x3;
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Pipe->MaximumInstances = Buffer->MaxInstances;
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Pipe->CurrentInstances = 0;
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2001-05-01 11:09:01 +00:00
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Pipe->TimeOut = Buffer->TimeOut;
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2003-06-21 19:55:55 +00:00
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|
if (!(IoStack->Parameters.Create.Options & FILE_PIPE_OUTBOUND) ||
|
|
|
|
IoStack->Parameters.Create.Options & FILE_PIPE_FULL_DUPLEX)
|
|
|
|
{
|
|
|
|
if (Buffer->InBufferSize == 0)
|
|
|
|
{
|
|
|
|
Pipe->InboundQuota = DeviceExt->DefaultQuota;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Pipe->InboundQuota = PAGE_ROUND_UP(Buffer->InBufferSize);
|
|
|
|
if (Pipe->InboundQuota < DeviceExt->MinQuota)
|
|
|
|
{
|
|
|
|
Pipe->InboundQuota = DeviceExt->MinQuota;
|
|
|
|
}
|
|
|
|
else if (Pipe->InboundQuota > DeviceExt->MaxQuota)
|
|
|
|
{
|
|
|
|
Pipe->InboundQuota = DeviceExt->MaxQuota;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Pipe->InboundQuota = 0;
|
|
|
|
}
|
|
|
|
if (IoStack->Parameters.Create.Options & (FILE_PIPE_FULL_DUPLEX|FILE_PIPE_OUTBOUND))
|
|
|
|
{
|
|
|
|
if (Buffer->OutBufferSize == 0)
|
|
|
|
{
|
|
|
|
Pipe->OutboundQuota = DeviceExt->DefaultQuota;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Pipe->OutboundQuota = PAGE_ROUND_UP(Buffer->OutBufferSize);
|
|
|
|
if (Pipe->OutboundQuota < DeviceExt->MinQuota)
|
|
|
|
{
|
|
|
|
Pipe->OutboundQuota = DeviceExt->MinQuota;
|
|
|
|
}
|
|
|
|
else if (Pipe->OutboundQuota > DeviceExt->MaxQuota)
|
|
|
|
{
|
|
|
|
Pipe->OutboundQuota = DeviceExt->MaxQuota;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Pipe->OutboundQuota = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Pipe->OutboundQuota)
|
|
|
|
{
|
|
|
|
Fcb->Data = ExAllocatePool(NonPagedPool, Pipe->OutboundQuota);
|
|
|
|
if (Fcb->Data == NULL)
|
|
|
|
{
|
|
|
|
ExFreePool(Fcb);
|
|
|
|
RtlFreeUnicodeString(&Pipe->PipeName);
|
|
|
|
ExFreePool(Pipe);
|
|
|
|
|
|
|
|
Irp->IoStatus.Status = STATUS_NO_MEMORY;
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
|
|
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
|
|
|
|
return(STATUS_NO_MEMORY);
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Fcb->Data = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
Fcb->ReadPtr = Fcb->Data;
|
|
|
|
Fcb->WritePtr = Fcb->Data;
|
|
|
|
Fcb->ReadDataAvailable = 0;
|
|
|
|
Fcb->WriteQuotaAvailable = Pipe->OutboundQuota;
|
|
|
|
Fcb->MaxDataLength = Pipe->OutboundQuota;
|
|
|
|
KeInitializeSpinLock(&Fcb->DataListLock);
|
|
|
|
|
|
|
|
|
2001-05-10 23:38:31 +00:00
|
|
|
KeLockMutex(&DeviceExt->PipeListLock);
|
|
|
|
current_entry = DeviceExt->PipeListHead.Flink;
|
|
|
|
while (current_entry != &DeviceExt->PipeListHead)
|
2000-03-26 22:00:10 +00:00
|
|
|
{
|
|
|
|
current = CONTAINING_RECORD(current_entry,
|
2001-05-01 11:09:01 +00:00
|
|
|
NPFS_PIPE,
|
|
|
|
PipeListEntry);
|
2000-03-26 22:00:10 +00:00
|
|
|
|
2001-05-10 23:38:31 +00:00
|
|
|
if (RtlCompareUnicodeString(&Pipe->PipeName, ¤t->PipeName, TRUE) == 0)
|
2000-03-26 22:00:10 +00:00
|
|
|
{
|
2000-05-13 13:51:08 +00:00
|
|
|
break;
|
2000-03-26 22:00:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
current_entry = current_entry->Flink;
|
|
|
|
}
|
1999-11-24 11:51:55 +00:00
|
|
|
|
2001-05-10 23:38:31 +00:00
|
|
|
if (current_entry != &DeviceExt->PipeListHead)
|
2000-05-13 13:51:08 +00:00
|
|
|
{
|
2001-05-10 23:38:31 +00:00
|
|
|
RtlFreeUnicodeString(&Pipe->PipeName);
|
2000-05-13 13:51:08 +00:00
|
|
|
ExFreePool(Pipe);
|
|
|
|
|
|
|
|
Pipe = current;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2001-05-10 23:38:31 +00:00
|
|
|
InsertTailList(&DeviceExt->PipeListHead, &Pipe->PipeListEntry);
|
2000-05-13 13:51:08 +00:00
|
|
|
}
|
|
|
|
Pipe->ReferenceCount++;
|
2001-07-29 16:41:25 +00:00
|
|
|
Pipe->CurrentInstances++;
|
2000-05-13 13:51:08 +00:00
|
|
|
|
2001-05-01 11:09:01 +00:00
|
|
|
KeAcquireSpinLock(&Pipe->FcbListLock, &oldIrql);
|
2001-07-29 16:41:25 +00:00
|
|
|
InsertTailList(&Pipe->ServerFcbListHead, &Fcb->FcbListEntry);
|
2001-05-01 11:09:01 +00:00
|
|
|
KeReleaseSpinLock(&Pipe->FcbListLock, oldIrql);
|
|
|
|
|
2000-05-13 13:51:08 +00:00
|
|
|
Fcb->Pipe = Pipe;
|
2001-07-29 16:41:25 +00:00
|
|
|
Fcb->PipeEnd = FILE_PIPE_SERVER_END;
|
2000-05-13 13:51:08 +00:00
|
|
|
Fcb->OtherSide = NULL;
|
2001-07-29 16:41:25 +00:00
|
|
|
Fcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
|
|
|
|
|
2001-05-10 23:38:31 +00:00
|
|
|
KeInitializeEvent(&Fcb->ConnectEvent,
|
|
|
|
SynchronizationEvent,
|
|
|
|
FALSE);
|
|
|
|
|
2003-06-21 19:55:55 +00:00
|
|
|
KeInitializeEvent(&Fcb->Event,
|
2001-11-20 20:35:10 +00:00
|
|
|
SynchronizationEvent,
|
|
|
|
FALSE);
|
|
|
|
|
|
|
|
|
2001-05-10 23:38:31 +00:00
|
|
|
KeUnlockMutex(&DeviceExt->PipeListLock);
|
1999-11-24 11:51:55 +00:00
|
|
|
|
2000-05-13 13:51:08 +00:00
|
|
|
FileObject->FsContext = Fcb;
|
1999-11-24 11:51:55 +00:00
|
|
|
|
2001-10-21 18:58:32 +00:00
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
1999-11-24 11:51:55 +00:00
|
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
|
|
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
|
2001-10-21 18:58:32 +00:00
|
|
|
return(STATUS_SUCCESS);
|
1999-11-24 11:51:55 +00:00
|
|
|
}
|
1999-12-04 20:58:45 +00:00
|
|
|
|
|
|
|
|
2001-05-01 11:09:01 +00:00
|
|
|
NTSTATUS STDCALL
|
|
|
|
NpfsClose(PDEVICE_OBJECT DeviceObject,
|
|
|
|
PIRP Irp)
|
|
|
|
{
|
2001-10-20 15:30:07 +00:00
|
|
|
PNPFS_DEVICE_EXTENSION DeviceExt;
|
|
|
|
PIO_STACK_LOCATION IoStack;
|
|
|
|
PFILE_OBJECT FileObject;
|
|
|
|
PNPFS_FCB Fcb;
|
|
|
|
PNPFS_PIPE Pipe;
|
|
|
|
KIRQL oldIrql;
|
2002-05-07 22:40:35 +00:00
|
|
|
|
2003-01-19 01:13:04 +00:00
|
|
|
DPRINT("NpfsClose(DeviceObject %p Irp %p)\n", DeviceObject, Irp);
|
2001-05-01 11:09:01 +00:00
|
|
|
|
2001-10-20 15:30:07 +00:00
|
|
|
IoStack = IoGetCurrentIrpStackLocation(Irp);
|
|
|
|
DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
|
|
|
|
FileObject = IoStack->FileObject;
|
|
|
|
Fcb = FileObject->FsContext;
|
2001-05-01 11:09:01 +00:00
|
|
|
|
2001-10-20 15:30:07 +00:00
|
|
|
if (Fcb == NULL)
|
|
|
|
{
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
|
|
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
|
|
|
|
return(STATUS_SUCCESS);
|
|
|
|
}
|
|
|
|
|
|
|
|
DPRINT("Fcb %x\n", Fcb);
|
|
|
|
Pipe = Fcb->Pipe;
|
|
|
|
|
|
|
|
DPRINT("Closing pipe %wZ\n", &Pipe->PipeName);
|
|
|
|
|
|
|
|
KeLockMutex(&DeviceExt->PipeListLock);
|
2001-05-01 11:09:01 +00:00
|
|
|
|
|
|
|
|
2001-07-29 16:41:25 +00:00
|
|
|
if (Fcb->PipeEnd == FILE_PIPE_SERVER_END)
|
2001-10-20 15:30:07 +00:00
|
|
|
{
|
|
|
|
/* FIXME: Clean up existing connections here ?? */
|
2002-05-07 22:40:35 +00:00
|
|
|
DPRINT("Server\n");
|
2001-10-20 15:30:07 +00:00
|
|
|
Pipe->CurrentInstances--;
|
2002-05-07 22:40:35 +00:00
|
|
|
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
|
2003-06-21 19:55:55 +00:00
|
|
|
{
|
|
|
|
if (Fcb->OtherSide)
|
|
|
|
{
|
2002-05-07 22:40:35 +00:00
|
|
|
Fcb->OtherSide->PipeState = FILE_PIPE_CLOSING_STATE;
|
2003-06-21 19:55:55 +00:00
|
|
|
/* Signaling the write event. If is possible that an other
|
|
|
|
* thread waits of an empty buffer.
|
|
|
|
*/
|
|
|
|
KeSetEvent(&Fcb->OtherSide->Event, IO_NO_INCREMENT, FALSE);
|
|
|
|
}
|
|
|
|
Fcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
|
|
|
|
}
|
2001-10-20 15:30:07 +00:00
|
|
|
}
|
|
|
|
Pipe->ReferenceCount--;
|
2001-05-10 23:38:31 +00:00
|
|
|
|
2002-05-07 22:40:35 +00:00
|
|
|
if (Fcb->PipeEnd == FILE_PIPE_CLIENT_END)
|
|
|
|
{
|
|
|
|
DPRINT("Client\n");
|
|
|
|
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
|
|
|
|
{
|
|
|
|
if (Fcb->OtherSide)
|
|
|
|
{
|
|
|
|
Fcb->OtherSide->PipeState = FILE_PIPE_CLOSING_STATE;
|
|
|
|
|
|
|
|
/* Signaling the read event. If is possible that an other
|
|
|
|
* thread waits of read data.
|
|
|
|
*/
|
2003-06-21 19:55:55 +00:00
|
|
|
KeSetEvent(&Fcb->OtherSide->Event, IO_NO_INCREMENT, FALSE);
|
2002-05-07 22:40:35 +00:00
|
|
|
}
|
|
|
|
Fcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-10-20 15:30:07 +00:00
|
|
|
FileObject->FsContext = NULL;
|
2001-05-10 23:38:31 +00:00
|
|
|
|
2001-10-20 15:30:07 +00:00
|
|
|
if (Pipe->ReferenceCount == 0)
|
|
|
|
{
|
2002-05-07 22:40:35 +00:00
|
|
|
KeAcquireSpinLock(&Pipe->FcbListLock, &oldIrql);
|
|
|
|
if (Fcb->OtherSide)
|
|
|
|
{
|
|
|
|
RemoveEntryList(&Fcb->OtherSide->FcbListEntry);
|
|
|
|
}
|
|
|
|
RemoveEntryList(&Fcb->FcbListEntry);
|
|
|
|
KeReleaseSpinLock(&Pipe->FcbListLock, oldIrql);
|
|
|
|
if (Fcb->OtherSide)
|
2003-06-21 19:55:55 +00:00
|
|
|
{
|
|
|
|
if (Fcb->OtherSide->Data)
|
|
|
|
{
|
|
|
|
ExFreePool(Fcb->OtherSide->Data);
|
|
|
|
}
|
|
|
|
ExFreePool(Fcb->OtherSide);
|
|
|
|
}
|
|
|
|
if (Fcb->Data)
|
|
|
|
{
|
|
|
|
ExFreePool(Fcb->Data);
|
|
|
|
}
|
2002-05-07 22:40:35 +00:00
|
|
|
ExFreePool(Fcb);
|
2001-10-20 15:30:07 +00:00
|
|
|
RtlFreeUnicodeString(&Pipe->PipeName);
|
|
|
|
RemoveEntryList(&Pipe->PipeListEntry);
|
|
|
|
ExFreePool(Pipe);
|
|
|
|
}
|
2001-05-10 23:38:31 +00:00
|
|
|
|
2001-10-20 15:30:07 +00:00
|
|
|
KeUnlockMutex(&DeviceExt->PipeListLock);
|
|
|
|
|
|
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
|
|
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
|
|
|
|
return(STATUS_SUCCESS);
|
2001-05-01 11:09:01 +00:00
|
|
|
}
|
|
|
|
|
1999-12-04 20:58:45 +00:00
|
|
|
/* EOF */
|