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The NPFS_FCB struct is actually a CCB (Context Control Block) instead of an FCB (File Control Block). Rename it accordingly and store pointers to it in FileObject->FsContext2 instead of FileObject->FsContext.

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svn path=/trunk/; revision=21845
This commit is contained in:
Eric Kohl 2006-05-07 19:56:32 +00:00
parent 3d1978b003
commit 8ee8c5c694
5 changed files with 415 additions and 399 deletions
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280
reactos/drivers/filesystems/np/create.c
View file

@ -41,7 +41,7 @@ NpfsFindPipe(PNPFS_DEVICE_EXTENSION DeviceExt,
}
static PNPFS_FCB
static PNPFS_CCB
NpfsFindListeningServerInstance(PNPFS_PIPE Pipe)
{
PLIST_ENTRY CurrentEntry;
@ -54,16 +54,16 @@ NpfsFindListeningServerInstance(PNPFS_PIPE Pipe)
{
Waiter = CONTAINING_RECORD(CurrentEntry, NPFS_WAITER_ENTRY, Entry);
Irp = CONTAINING_RECORD(Waiter, IRP, Tail.Overlay.DriverContext);
if (Waiter->Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
if (Waiter->Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
{
DPRINT("Server found! Fcb %p\n", Waiter->Fcb);
DPRINT("Server found! CCB %p\n", Waiter->Ccb);
IoAcquireCancelSpinLock(&oldIrql);
if (!Irp->Cancel)
{
(void)IoSetCancelRoutine(Irp, NULL);
IoReleaseCancelSpinLock(oldIrql);
return Waiter->Fcb;
return Waiter->Ccb;
}
IoReleaseCancelSpinLock(oldIrql);
}
@ -77,7 +77,7 @@ NpfsFindListeningServerInstance(PNPFS_PIPE Pipe)
static VOID
NpfsSignalAndRemoveListeningServerInstance(PNPFS_PIPE Pipe,
PNPFS_FCB Fcb)
PNPFS_CCB Ccb)
{
PLIST_ENTRY CurrentEntry;
PNPFS_WAITER_ENTRY Waiter;
@ -87,9 +87,9 @@ NpfsSignalAndRemoveListeningServerInstance(PNPFS_PIPE Pipe,
while (CurrentEntry != &Pipe->WaiterListHead)
{
Waiter = CONTAINING_RECORD(CurrentEntry, NPFS_WAITER_ENTRY, Entry);
if (Waiter->Fcb == Fcb)
if (Waiter->Ccb == Ccb)
{
DPRINT("Server found! Fcb %p\n", Waiter->Fcb);
DPRINT("Server found! CCB %p\n", Waiter->Ccb);
RemoveEntryList(&Waiter->Entry);
Irp = CONTAINING_RECORD(Waiter, IRP, Tail.Overlay.DriverContext);
@ -110,8 +110,8 @@ NpfsCreate(PDEVICE_OBJECT DeviceObject,
PEXTENDED_IO_STACK_LOCATION IoStack;
PFILE_OBJECT FileObject;
PNPFS_PIPE Pipe;
PNPFS_FCB ClientFcb;
PNPFS_FCB ServerFcb = NULL;
PNPFS_CCB ClientCcb;
PNPFS_CCB ServerCcb = NULL;
PNPFS_DEVICE_EXTENSION DeviceExt;
BOOLEAN SpecialAccess;
ACCESS_MASK DesiredAccess;
@ -152,42 +152,42 @@ NpfsCreate(PDEVICE_OBJECT DeviceObject,
KeUnlockMutex(&DeviceExt->PipeListLock);
/*
* Acquire the lock for FCB lists. From now on no modifications to the
* FCB lists are allowed, because it can cause various misconsistencies.
* Acquire the lock for CCB lists. From now on no modifications to the
* CCB lists are allowed, because it can cause various misconsistencies.
*/
KeLockMutex(&Pipe->FcbListLock);
KeLockMutex(&Pipe->CcbListLock);
/*
* Step 2. Create the client FCB.
* Step 2. Create the client CCB.
*/
ClientFcb = ExAllocatePool(NonPagedPool, sizeof(NPFS_FCB));
if (ClientFcb == NULL)
ClientCcb = ExAllocatePool(NonPagedPool, sizeof(NPFS_CCB));
if (ClientCcb == NULL)
{
DPRINT("No memory!\n");
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
Irp->IoStatus.Status = STATUS_NO_MEMORY;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NO_MEMORY;
}
ClientFcb->Thread = (struct ETHREAD *)Irp->Tail.Overlay.Thread;
ClientFcb->Pipe = Pipe;
ClientFcb->PipeEnd = FILE_PIPE_CLIENT_END;
ClientFcb->OtherSide = NULL;
ClientFcb->PipeState = SpecialAccess ? 0 : FILE_PIPE_DISCONNECTED_STATE;
InitializeListHead(&ClientFcb->ReadRequestListHead);
ClientCcb->Thread = (struct ETHREAD *)Irp->Tail.Overlay.Thread;
ClientCcb->Pipe = Pipe;
ClientCcb->PipeEnd = FILE_PIPE_CLIENT_END;
ClientCcb->OtherSide = NULL;
ClientCcb->PipeState = SpecialAccess ? 0 : FILE_PIPE_DISCONNECTED_STATE;
InitializeListHead(&ClientCcb->ReadRequestListHead);
DPRINT("Fcb: %x\n", ClientFcb);
DPRINT("CCB: %p\n", ClientCcb);
/* Initialize data list. */
if (Pipe->OutboundQuota)
{
ClientFcb->Data = ExAllocatePool(PagedPool, Pipe->OutboundQuota);
if (ClientFcb->Data == NULL)
ClientCcb->Data = ExAllocatePool(PagedPool, Pipe->OutboundQuota);
if (ClientCcb->Data == NULL)
{
DPRINT("No memory!\n");
ExFreePool(ClientFcb);
KeUnlockMutex(&Pipe->FcbListLock);
ExFreePool(ClientCcb);
KeUnlockMutex(&Pipe->CcbListLock);
Irp->IoStatus.Status = STATUS_NO_MEMORY;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NO_MEMORY;
@ -195,50 +195,50 @@ NpfsCreate(PDEVICE_OBJECT DeviceObject,
}
else
{
ClientFcb->Data = NULL;
ClientCcb->Data = NULL;
}
ClientFcb->ReadPtr = ClientFcb->Data;
ClientFcb->WritePtr = ClientFcb->Data;
ClientFcb->ReadDataAvailable = 0;
ClientFcb->WriteQuotaAvailable = Pipe->OutboundQuota;
ClientFcb->MaxDataLength = Pipe->OutboundQuota;
ExInitializeFastMutex(&ClientFcb->DataListLock);
KeInitializeEvent(&ClientFcb->ConnectEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&ClientFcb->ReadEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&ClientFcb->WriteEvent, SynchronizationEvent, FALSE);
ClientCcb->ReadPtr = ClientCcb->Data;
ClientCcb->WritePtr = ClientCcb->Data;
ClientCcb->ReadDataAvailable = 0;
ClientCcb->WriteQuotaAvailable = Pipe->OutboundQuota;
ClientCcb->MaxDataLength = Pipe->OutboundQuota;
ExInitializeFastMutex(&ClientCcb->DataListLock);
KeInitializeEvent(&ClientCcb->ConnectEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&ClientCcb->ReadEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&ClientCcb->WriteEvent, SynchronizationEvent, FALSE);
/*
* Step 3. Search for listening server FCB.
* Step 3. Search for listening server CCB.
*/
if (!SpecialAccess)
{
/*
* WARNING: Point of no return! Once we get the server FCB it's
* WARNING: Point of no return! Once we get the server CCB it's
* possible that we completed a wait request and so we have to
* complete even this request.
*/
ServerFcb = NpfsFindListeningServerInstance(Pipe);
if (ServerFcb == NULL)
ServerCcb = NpfsFindListeningServerInstance(Pipe);
if (ServerCcb == NULL)
{
PLIST_ENTRY CurrentEntry;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
/*
* If no waiting server FCB was found then try to pick
* one of the listing server FCB on the pipe.
* If no waiting server CCB was found then try to pick
* one of the listing server CCB on the pipe.
*/
CurrentEntry = Pipe->ServerFcbListHead.Flink;
while (CurrentEntry != &Pipe->ServerFcbListHead)
CurrentEntry = Pipe->ServerCcbListHead.Flink;
while (CurrentEntry != &Pipe->ServerCcbListHead)
{
Fcb = CONTAINING_RECORD(CurrentEntry, NPFS_FCB, FcbListEntry);
if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
Ccb = CONTAINING_RECORD(CurrentEntry, NPFS_CCB, CcbListEntry);
if (Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
{
ServerFcb = Fcb;
ServerCcb = Ccb;
break;
}
CurrentEntry = CurrentEntry->Flink;
@ -248,13 +248,13 @@ NpfsCreate(PDEVICE_OBJECT DeviceObject,
* No one is listening to me?! I'm so lonely... :(
*/
if (ServerFcb == NULL)
if (ServerCcb == NULL)
{
/* Not found, bail out with error for FILE_OPEN requests. */
DPRINT("No listening server fcb found!\n");
if (ClientFcb->Data)
ExFreePool(ClientFcb->Data);
KeUnlockMutex(&Pipe->FcbListLock);
DPRINT("No listening server CCB found!\n");
if (ClientCcb->Data)
ExFreePool(ClientCcb->Data);
KeUnlockMutex(&Pipe->CcbListLock);
Irp->IoStatus.Status = STATUS_PIPE_BUSY;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_PIPE_BUSY;
@ -264,37 +264,37 @@ NpfsCreate(PDEVICE_OBJECT DeviceObject,
{
/* Signal the server thread and remove it from the waiter list */
/* FIXME: Merge this with the NpfsFindListeningServerInstance routine. */
NpfsSignalAndRemoveListeningServerInstance(Pipe, ServerFcb);
NpfsSignalAndRemoveListeningServerInstance(Pipe, ServerCcb);
}
}
else if (IsListEmpty(&Pipe->ServerFcbListHead))
else if (IsListEmpty(&Pipe->ServerCcbListHead))
{
DPRINT("No server fcb found!\n");
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_UNSUCCESSFUL;
}
/*
* Step 4. Add the client FCB to a list and connect it if possible.
* Step 4. Add the client CCB to a list and connect it if possible.
*/
/* Add the client FCB to the pipe FCB list. */
InsertTailList(&Pipe->ClientFcbListHead, &ClientFcb->FcbListEntry);
/* Add the client CCB to the pipe CCB list. */
InsertTailList(&Pipe->ClientCcbListHead, &ClientCcb->CcbListEntry);
/* Connect to listening server side */
if (ServerFcb)
if (ServerCcb)
{
ClientFcb->OtherSide = ServerFcb;
ServerFcb->OtherSide = ClientFcb;
ClientFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
ServerFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
ClientCcb->OtherSide = ServerCcb;
ServerCcb->OtherSide = ClientCcb;
ClientCcb->PipeState = FILE_PIPE_CONNECTED_STATE;
ServerCcb->PipeState = FILE_PIPE_CONNECTED_STATE;
}
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
FileObject->FsContext = ClientFcb;
FileObject->FsContext2 = ClientCcb;
FileObject->Flags |= FO_NAMED_PIPE;
Irp->IoStatus.Status = STATUS_SUCCESS;
@ -314,7 +314,7 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
PFILE_OBJECT FileObject;
PNPFS_DEVICE_EXTENSION DeviceExt;
PNPFS_PIPE Pipe;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
PNAMED_PIPE_CREATE_PARAMETERS Buffer;
BOOLEAN NewPipe = FALSE;
@ -338,15 +338,15 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
return STATUS_INVALID_PARAMETER;
}
Fcb = ExAllocatePool(NonPagedPool, sizeof(NPFS_FCB));
if (Fcb == NULL)
Ccb = ExAllocatePool(NonPagedPool, sizeof(NPFS_CCB));
if (Ccb == NULL)
{
Irp->IoStatus.Status = STATUS_NO_MEMORY;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NO_MEMORY;
}
Fcb->Thread = (struct ETHREAD *)Irp->Tail.Overlay.Thread;
Ccb->Thread = (struct ETHREAD *)Irp->Tail.Overlay.Thread;
KeLockMutex(&DeviceExt->PipeListLock);
/*
@ -365,7 +365,7 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
if (Pipe->CurrentInstances >= Pipe->MaximumInstances)
{
DPRINT("Out of instances.\n");
ExFreePool(Fcb);
ExFreePool(Ccb);
Irp->IoStatus.Status = STATUS_PIPE_BUSY;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_PIPE_BUSY;
@ -376,7 +376,7 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
Pipe->TimeOut.QuadPart != Buffer->DefaultTimeout.QuadPart)
{
DPRINT("Asked for invalid pipe mode.\n");
ExFreePool(Fcb);
ExFreePool(Ccb);
Irp->IoStatus.Status = STATUS_ACCESS_DENIED;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_ACCESS_DENIED;
@ -402,7 +402,7 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
{
KeUnlockMutex(&DeviceExt->PipeListLock);
ExFreePool(Pipe);
ExFreePool(Fcb);
ExFreePool(Ccb);
Irp->IoStatus.Status = STATUS_NO_MEMORY;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
@ -411,10 +411,10 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
RtlCopyUnicodeString(&Pipe->PipeName, &FileObject->FileName);
InitializeListHead(&Pipe->ServerFcbListHead);
InitializeListHead(&Pipe->ClientFcbListHead);
InitializeListHead(&Pipe->ServerCcbListHead);
InitializeListHead(&Pipe->ClientCcbListHead);
InitializeListHead(&Pipe->WaiterListHead);
KeInitializeMutex(&Pipe->FcbListLock, 0);
KeInitializeMutex(&Pipe->CcbListLock, 0);
Pipe->PipeType = Buffer->NamedPipeType;
Pipe->WriteMode = Buffer->ReadMode;
@ -490,10 +490,10 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
if (Pipe->InboundQuota)
{
Fcb->Data = ExAllocatePool(PagedPool, Pipe->InboundQuota);
if (Fcb->Data == NULL)
Ccb->Data = ExAllocatePool(PagedPool, Pipe->InboundQuota);
if (Ccb->Data == NULL)
{
ExFreePool(Fcb);
ExFreePool(Ccb);
if (NewPipe)
{
@ -511,35 +511,35 @@ NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject,
}
else
{
Fcb->Data = NULL;
Ccb->Data = NULL;
}
Fcb->ReadPtr = Fcb->Data;
Fcb->WritePtr = Fcb->Data;
Fcb->ReadDataAvailable = 0;
Fcb->WriteQuotaAvailable = Pipe->InboundQuota;
Fcb->MaxDataLength = Pipe->InboundQuota;
InitializeListHead(&Fcb->ReadRequestListHead);
ExInitializeFastMutex(&Fcb->DataListLock);
Ccb->ReadPtr = Ccb->Data;
Ccb->WritePtr = Ccb->Data;
Ccb->ReadDataAvailable = 0;
Ccb->WriteQuotaAvailable = Pipe->InboundQuota;
Ccb->MaxDataLength = Pipe->InboundQuota;
InitializeListHead(&Ccb->ReadRequestListHead);
ExInitializeFastMutex(&Ccb->DataListLock);
Pipe->CurrentInstances++;
Fcb->Pipe = Pipe;
Fcb->PipeEnd = FILE_PIPE_SERVER_END;
Fcb->PipeState = FILE_PIPE_LISTENING_STATE;
Fcb->OtherSide = NULL;
Ccb->Pipe = Pipe;
Ccb->PipeEnd = FILE_PIPE_SERVER_END;
Ccb->PipeState = FILE_PIPE_LISTENING_STATE;
Ccb->OtherSide = NULL;
DPRINT("Fcb: %x\n", Fcb);
DPRINT("CCB: %x\n", Ccb);
KeInitializeEvent(&Fcb->ConnectEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&Fcb->ReadEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&Fcb->WriteEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&Ccb->ConnectEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&Ccb->ReadEvent, SynchronizationEvent, FALSE);
KeInitializeEvent(&Ccb->WriteEvent, SynchronizationEvent, FALSE);
KeLockMutex(&Pipe->FcbListLock);
InsertTailList(&Pipe->ServerFcbListHead, &Fcb->FcbListEntry);
KeUnlockMutex(&Pipe->FcbListLock);
KeLockMutex(&Pipe->CcbListLock);
InsertTailList(&Pipe->ServerCcbListHead, &Ccb->CcbListEntry);
KeUnlockMutex(&Pipe->CcbListLock);
FileObject->FsContext = Fcb;
FileObject->FsContext2 = Ccb;
FileObject->Flags |= FO_NAMED_PIPE;
Irp->IoStatus.Status = STATUS_SUCCESS;
@ -558,7 +558,7 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
PNPFS_DEVICE_EXTENSION DeviceExt;
PIO_STACK_LOCATION IoStack;
PFILE_OBJECT FileObject;
PNPFS_FCB Fcb, OtherSide;
PNPFS_CCB Ccb, OtherSide;
PNPFS_PIPE Pipe;
BOOLEAN Server;
@ -567,9 +567,9 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
IoStack = IoGetCurrentIrpStackLocation(Irp);
DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
FileObject = IoStack->FileObject;
Fcb = FileObject->FsContext;
Ccb = FileObject->FsContext2;
if (Fcb == NULL)
if (Ccb == NULL)
{
DPRINT("Success!\n");
Irp->IoStatus.Status = STATUS_SUCCESS;
@ -578,14 +578,14 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
return STATUS_SUCCESS;
}
DPRINT("Fcb %x\n", Fcb);
Pipe = Fcb->Pipe;
DPRINT("CCB %p\n", Ccb);
Pipe = Ccb->Pipe;
DPRINT("Cleaning pipe %wZ\n", &Pipe->PipeName);
KeLockMutex(&Pipe->FcbListLock);
KeLockMutex(&Pipe->CcbListLock);
Server = (Fcb->PipeEnd == FILE_PIPE_SERVER_END);
Server = (Ccb->PipeEnd == FILE_PIPE_SERVER_END);
if (Server)
{
@ -596,19 +596,19 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
{
DPRINT("Client\n");
}
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
OtherSide = Fcb->OtherSide;
OtherSide = Ccb->OtherSide;
/* Lock the server first */
if (Server)
{
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
ExAcquireFastMutex(&OtherSide->DataListLock);
}
else
{
ExAcquireFastMutex(&OtherSide->DataListLock);
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
}
OtherSide->PipeState = FILE_PIPE_DISCONNECTED_STATE;
OtherSide->OtherSide = NULL;
@ -621,15 +621,15 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
if (Server)
{
ExReleaseFastMutex(&OtherSide->DataListLock);
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
}
else
{
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
ExReleaseFastMutex(&OtherSide->DataListLock);
}
}
else if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
else if (Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
{
PLIST_ENTRY Entry;
PNPFS_WAITER_ENTRY WaitEntry = NULL;
@ -637,11 +637,11 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
KIRQL oldIrql;
PIRP tmpIrp;
Entry = Fcb->Pipe->WaiterListHead.Flink;
while (Entry != &Fcb->Pipe->WaiterListHead)
Entry = Ccb->Pipe->WaiterListHead.Flink;
while (Entry != &Ccb->Pipe->WaiterListHead)
{
WaitEntry = CONTAINING_RECORD(Entry, NPFS_WAITER_ENTRY, Entry);
if (WaitEntry->Fcb == Fcb)
if (WaitEntry->Ccb == Ccb)
{
RemoveEntryList(Entry);
tmpIrp = CONTAINING_RECORD(WaitEntry, IRP, Tail.Overlay.DriverContext);
@ -664,19 +664,19 @@ NpfsCleanup(PDEVICE_OBJECT DeviceObject,
}
}
Fcb->PipeState = FILE_PIPE_CLOSING_STATE;
Ccb->PipeState = FILE_PIPE_CLOSING_STATE;
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
ExAcquireFastMutex(&Fcb->DataListLock);
if (Fcb->Data)
ExAcquireFastMutex(&Ccb->DataListLock);
if (Ccb->Data)
{
ExFreePool(Fcb->Data);
Fcb->Data = NULL;
Fcb->ReadPtr = NULL;
Fcb->WritePtr = NULL;
ExFreePool(Ccb->Data);
Ccb->Data = NULL;
Ccb->ReadPtr = NULL;
Ccb->WritePtr = NULL;
}
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
@ -694,7 +694,7 @@ NpfsClose(PDEVICE_OBJECT DeviceObject,
PNPFS_DEVICE_EXTENSION DeviceExt;
PIO_STACK_LOCATION IoStack;
PFILE_OBJECT FileObject;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
PNPFS_PIPE Pipe;
BOOLEAN Server;
@ -703,9 +703,9 @@ NpfsClose(PDEVICE_OBJECT DeviceObject,
IoStack = IoGetCurrentIrpStackLocation(Irp);
DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
FileObject = IoStack->FileObject;
Fcb = FileObject->FsContext;
Ccb = FileObject->FsContext2;
if (Fcb == NULL)
if (Ccb == NULL)
{
DPRINT("Success!\n");
Irp->IoStatus.Status = STATUS_SUCCESS;
@ -714,14 +714,14 @@ NpfsClose(PDEVICE_OBJECT DeviceObject,
return STATUS_SUCCESS;
}
DPRINT("Fcb %x\n", Fcb);
Pipe = Fcb->Pipe;
DPRINT("CCB %x\n", Ccb);
Pipe = Ccb->Pipe;
DPRINT("Closing pipe %wZ\n", &Pipe->PipeName);
KeLockMutex(&Pipe->FcbListLock);
KeLockMutex(&Pipe->CcbListLock);
Server = (Fcb->PipeEnd == FILE_PIPE_SERVER_END);
Server = (Ccb->PipeEnd == FILE_PIPE_SERVER_END);
if (Server)
{
@ -733,18 +733,18 @@ NpfsClose(PDEVICE_OBJECT DeviceObject,
DPRINT("Client\n");
}
ASSERT (Fcb->PipeState == FILE_PIPE_CLOSING_STATE);
ASSERT(Ccb->PipeState == FILE_PIPE_CLOSING_STATE);
FileObject->FsContext = NULL;
FileObject->FsContext2 = NULL;
RemoveEntryList(&Fcb->FcbListEntry);
RemoveEntryList(&Ccb->CcbListEntry);
ExFreePool(Fcb);
ExFreePool(Ccb);
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
if (IsListEmpty(&Pipe->ServerFcbListHead) &&
IsListEmpty(&Pipe->ClientFcbListHead))
if (IsListEmpty(&Pipe->ServerCcbListHead) &&
IsListEmpty(&Pipe->ClientCcbListHead))
{
RtlFreeUnicodeString(&Pipe->PipeName);
KeLockMutex(&DeviceExt->PipeListLock);

84
reactos/drivers/filesystems/np/finfo.c
View file

@ -18,7 +18,7 @@
static
NTSTATUS
NpfsSetPipeInformation(PDEVICE_OBJECT DeviceObject,
PNPFS_FCB Fcb,
PNPFS_CCB Ccb,
PFILE_PIPE_INFORMATION Info,
PULONG BufferLength)
{
@ -27,21 +27,21 @@ NpfsSetPipeInformation(PDEVICE_OBJECT DeviceObject,
DPRINT("NpfsSetPipeInformation()\n");
/* Get the Pipe and data */
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
Request = (PFILE_PIPE_INFORMATION)Info;
/* Set Pipe Data */
Pipe->ReadMode = Request->ReadMode;
Pipe->CompletionMode = Request->CompletionMode;
/* Return Success */
return STATUS_SUCCESS;
return STATUS_SUCCESS;
}
static
NTSTATUS
NpfsSetPipeRemoteInformation(PDEVICE_OBJECT DeviceObject,
PNPFS_FCB Fcb,
PNPFS_CCB Ccb,
PFILE_PIPE_INFORMATION Info,
PULONG BufferLength)
{
@ -50,21 +50,21 @@ NpfsSetPipeRemoteInformation(PDEVICE_OBJECT DeviceObject,
DPRINT("NpfsSetPipeRemoteInformation()\n");
/* Get the Pipe and data */
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
Request = (PFILE_PIPE_REMOTE_INFORMATION)Info;
/* Set the Settings */
Pipe->TimeOut = Request->CollectDataTime;
Pipe->InboundQuota = Request->MaximumCollectionCount;
/* Return Success */
return STATUS_SUCCESS;
}
static
static
NTSTATUS
NpfsQueryPipeInformation(PDEVICE_OBJECT DeviceObject,
PNPFS_FCB Fcb,
PNPFS_CCB Ccb,
PFILE_PIPE_INFORMATION Info,
PULONG BufferLength)
{
@ -72,24 +72,24 @@ NpfsQueryPipeInformation(PDEVICE_OBJECT DeviceObject,
DPRINT("NpfsQueryPipeInformation()\n");
/* Get the Pipe */
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
/* Clear Info */
RtlZeroMemory(Info, sizeof(FILE_PIPE_INFORMATION));
/* Return Info */
Info->CompletionMode = Pipe->CompletionMode;
Info->ReadMode = Pipe->ReadMode;
/* Return success */
*BufferLength -= sizeof(FILE_PIPE_INFORMATION);
return STATUS_SUCCESS;
}
static
static
NTSTATUS
NpfsQueryPipeRemoteInformation(PDEVICE_OBJECT DeviceObject,
PNPFS_FCB Fcb,
PNPFS_CCB Ccb,
PFILE_PIPE_REMOTE_INFORMATION Info,
PULONG BufferLength)
{
@ -97,15 +97,15 @@ NpfsQueryPipeRemoteInformation(PDEVICE_OBJECT DeviceObject,
DPRINT("NpfsQueryPipeRemoteInformation()\n");
/* Get the Pipe */
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
/* Clear Info */
RtlZeroMemory(Info, sizeof(FILE_PIPE_REMOTE_INFORMATION));
/* Return Info */
Info->MaximumCollectionCount = Pipe->InboundQuota;
Info->CollectDataTime = Pipe->TimeOut;
/* Return success */
*BufferLength -= sizeof(FILE_PIPE_REMOTE_INFORMATION);
return STATUS_SUCCESS;
@ -114,7 +114,7 @@ NpfsQueryPipeRemoteInformation(PDEVICE_OBJECT DeviceObject,
static NTSTATUS
NpfsQueryLocalPipeInformation(PDEVICE_OBJECT DeviceObject,
PNPFS_FCB Fcb,
PNPFS_CCB Ccb,
PFILE_PIPE_LOCAL_INFORMATION Info,
PULONG BufferLength)
{
@ -122,7 +122,7 @@ NpfsQueryLocalPipeInformation(PDEVICE_OBJECT DeviceObject,
DPRINT("NpfsQueryLocalPipeInformation()\n");
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
RtlZeroMemory(Info,
sizeof(FILE_PIPE_LOCAL_INFORMATION));
@ -133,18 +133,18 @@ NpfsQueryLocalPipeInformation(PDEVICE_OBJECT DeviceObject,
Info->CurrentInstances = Pipe->CurrentInstances;
Info->InboundQuota = Pipe->InboundQuota;
Info->OutboundQuota = Pipe->OutboundQuota;
Info->NamedPipeState = Fcb->PipeState;
Info->NamedPipeEnd = Fcb->PipeEnd;
Info->NamedPipeState = Ccb->PipeState;
Info->NamedPipeEnd = Ccb->PipeEnd;
if (Fcb->PipeEnd == FILE_PIPE_SERVER_END)
if (Ccb->PipeEnd == FILE_PIPE_SERVER_END)
{
Info->ReadDataAvailable = Fcb->ReadDataAvailable;
Info->WriteQuotaAvailable = Fcb->WriteQuotaAvailable;
Info->ReadDataAvailable = Ccb->ReadDataAvailable;
Info->WriteQuotaAvailable = Ccb->WriteQuotaAvailable;
}
else if (Fcb->OtherSide != NULL)
else if (Ccb->OtherSide != NULL)
{
Info->ReadDataAvailable = Fcb->OtherSide->ReadDataAvailable;
Info->WriteQuotaAvailable = Fcb->OtherSide->WriteQuotaAvailable;
Info->ReadDataAvailable = Ccb->OtherSide->ReadDataAvailable;
Info->WriteQuotaAvailable = Ccb->OtherSide->WriteQuotaAvailable;
}
*BufferLength -= sizeof(FILE_PIPE_LOCAL_INFORMATION);
@ -160,7 +160,7 @@ NpfsQueryInformation(PDEVICE_OBJECT DeviceObject,
FILE_INFORMATION_CLASS FileInformationClass;
PFILE_OBJECT FileObject;
PNPFS_DEVICE_EXTENSION DeviceExtension;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
PNPFS_PIPE Pipe;
PVOID SystemBuffer;
ULONG BufferLength;
@ -172,8 +172,8 @@ NpfsQueryInformation(PDEVICE_OBJECT DeviceObject,
FileInformationClass = IoStack->Parameters.QueryFile.FileInformationClass;
DeviceExtension = DeviceObject->DeviceExtension;
FileObject = IoStack->FileObject;
Fcb = (PNPFS_FCB)FileObject->FsContext;
Pipe = Fcb->Pipe;
Ccb = (PNPFS_CCB)FileObject->FsContext2;
Pipe = Ccb->Pipe;
SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
BufferLength = IoStack->Parameters.QueryFile.Length;
@ -187,21 +187,21 @@ NpfsQueryInformation(PDEVICE_OBJECT DeviceObject,
{
case FilePipeInformation:
Status = NpfsQueryPipeInformation(DeviceObject,
Fcb,
Ccb,
SystemBuffer,
&BufferLength);
break;
case FilePipeLocalInformation:
Status = NpfsQueryLocalPipeInformation(DeviceObject,
Fcb,
Ccb,
SystemBuffer,
&BufferLength);
break;
case FilePipeRemoteInformation:
Status = NpfsQueryPipeRemoteInformation(DeviceObject,
Fcb,
Ccb,
SystemBuffer,
&BufferLength);
break;
@ -229,7 +229,7 @@ NpfsSetInformation(PDEVICE_OBJECT DeviceObject,
PIO_STACK_LOCATION IoStack;
FILE_INFORMATION_CLASS FileInformationClass;
PFILE_OBJECT FileObject;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
PNPFS_PIPE Pipe;
PVOID SystemBuffer;
ULONG BufferLength;
@ -240,8 +240,8 @@ NpfsSetInformation(PDEVICE_OBJECT DeviceObject,
IoStack = IoGetCurrentIrpStackLocation (Irp);
FileInformationClass = IoStack->Parameters.QueryFile.FileInformationClass;
FileObject = IoStack->FileObject;
Fcb = (PNPFS_FCB)FileObject->FsContext;
Pipe = Fcb->Pipe;
Ccb = (PNPFS_CCB)FileObject->FsContext2;
Pipe = Ccb->Pipe;
SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
BufferLength = IoStack->Parameters.QueryFile.Length;
@ -256,19 +256,19 @@ NpfsSetInformation(PDEVICE_OBJECT DeviceObject,
case FilePipeInformation:
/* Call the handler */
Status = NpfsSetPipeInformation(DeviceObject,
Fcb,
Ccb,
SystemBuffer,
&BufferLength);
break;
case FilePipeLocalInformation:
Status = STATUS_NOT_IMPLEMENTED;
break;
case FilePipeRemoteInformation:
/* Call the handler */
Status = NpfsSetPipeRemoteInformation(DeviceObject,
Fcb,
Ccb,
SystemBuffer,
&BufferLength);
break;

186
reactos/drivers/filesystems/np/fsctrl.c
View file

@ -25,14 +25,14 @@ NpfsListeningCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
Waiter = (PNPFS_WAITER_ENTRY)&Irp->Tail.Overlay.DriverContext;
DPRINT1("NpfsListeningCancelRoutine() called for <%wZ>\n",
&Waiter->Fcb->Pipe->PipeName);
&Waiter->Ccb->Pipe->PipeName);
IoReleaseCancelSpinLock(Irp->CancelIrql);
KeLockMutex(&Waiter->Fcb->Pipe->FcbListLock);
KeLockMutex(&Waiter->Ccb->Pipe->CcbListLock);
RemoveEntryList(&Waiter->Entry);
KeUnlockMutex(&Waiter->Fcb->Pipe->FcbListLock);
KeUnlockMutex(&Waiter->Ccb->Pipe->CcbListLock);
Irp->IoStatus.Status = STATUS_CANCELLED;
Irp->IoStatus.Information = 0;
@ -42,26 +42,26 @@ NpfsListeningCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
static NTSTATUS
NpfsAddListeningServerInstance(PIRP Irp,
PNPFS_FCB Fcb)
PNPFS_CCB Ccb)
{
PNPFS_WAITER_ENTRY Entry;
KIRQL oldIrql;
Entry = (PNPFS_WAITER_ENTRY)&Irp->Tail.Overlay.DriverContext;
Entry->Fcb = Fcb;
Entry->Ccb = Ccb;
KeLockMutex(&Fcb->Pipe->FcbListLock);
KeLockMutex(&Ccb->Pipe->CcbListLock);
IoMarkIrpPending(Irp);
InsertTailList(&Fcb->Pipe->WaiterListHead, &Entry->Entry);
InsertTailList(&Ccb->Pipe->WaiterListHead, &Entry->Entry);
IoAcquireCancelSpinLock(&oldIrql);
if (!Irp->Cancel)
{
(void)IoSetCancelRoutine(Irp, NpfsListeningCancelRoutine);
IoReleaseCancelSpinLock(oldIrql);
KeUnlockMutex(&Fcb->Pipe->FcbListLock);
KeUnlockMutex(&Ccb->Pipe->CcbListLock);
return STATUS_PENDING;
}
IoReleaseCancelSpinLock(oldIrql);
@ -71,7 +71,7 @@ NpfsAddListeningServerInstance(PIRP Irp,
Irp->IoStatus.Status = STATUS_CANCELLED;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
KeUnlockMutex(&Fcb->Pipe->FcbListLock);
KeUnlockMutex(&Ccb->Pipe->CcbListLock);
return STATUS_CANCELLED;
}
@ -79,67 +79,67 @@ NpfsAddListeningServerInstance(PIRP Irp,
static NTSTATUS
NpfsConnectPipe(PIRP Irp,
PNPFS_FCB Fcb)
PNPFS_CCB Ccb)
{
PNPFS_PIPE Pipe;
PLIST_ENTRY current_entry;
PNPFS_FCB ClientFcb;
PNPFS_CCB ClientCcb;
NTSTATUS Status;
DPRINT("NpfsConnectPipe()\n");
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
KeResetEvent(&Fcb->ConnectEvent);
KeResetEvent(&Ccb->ConnectEvent);
return STATUS_PIPE_CONNECTED;
}
if (Fcb->PipeState == FILE_PIPE_CLOSING_STATE)
if (Ccb->PipeState == FILE_PIPE_CLOSING_STATE)
return STATUS_PIPE_CLOSING;
DPRINT("Waiting for connection...\n");
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
/* search for a listening client fcb */
KeLockMutex(&Pipe->FcbListLock);
KeLockMutex(&Pipe->CcbListLock);
current_entry = Pipe->ClientFcbListHead.Flink;
while (current_entry != &Pipe->ClientFcbListHead)
current_entry = Pipe->ClientCcbListHead.Flink;
while (current_entry != &Pipe->ClientCcbListHead)
{
ClientFcb = CONTAINING_RECORD(current_entry,
NPFS_FCB,
FcbListEntry);
ClientCcb = CONTAINING_RECORD(current_entry,
NPFS_CCB,
CcbListEntry);
if (ClientFcb->PipeState == 0)
if (ClientCcb->PipeState == 0)
{
/* found a passive (waiting) client fcb */
DPRINT("Passive (waiting) client fcb found -- wake the client\n");
KeSetEvent(&ClientFcb->ConnectEvent, IO_NO_INCREMENT, FALSE);
/* found a passive (waiting) client CCB */
DPRINT("Passive (waiting) client CCB found -- wake the client\n");
KeSetEvent(&ClientCcb->ConnectEvent, IO_NO_INCREMENT, FALSE);
break;
}
#if 0
if (ClientFcb->PipeState == FILE_PIPE_LISTENING_STATE)
if (ClientCcb->PipeState == FILE_PIPE_LISTENING_STATE)
{
/* found a listening client fcb */
DPRINT("Listening client fcb found -- connecting\n");
/* found a listening client CCB */
DPRINT("Listening client CCB found -- connecting\n");
/* connect client and server fcb's */
Fcb->OtherSide = ClientFcb;
ClientFcb->OtherSide = Fcb;
/* connect client and server CCBs */
Ccb->OtherSide = ClientCcb;
ClientCcb->OtherSide = Ccb;
/* set connected state */
Fcb->PipeState = FILE_PIPE_CONNECTED_STATE;
ClientFcb->PipeState = FILE_PIPE_CONNECTED_STATE;
Ccb->PipeState = FILE_PIPE_CONNECTED_STATE;
ClientCcb->PipeState = FILE_PIPE_CONNECTED_STATE;
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
/* FIXME: create and initialize data queues */
/* signal client's connect event */
DPRINT("Setting the ConnectEvent for %x\n", ClientFcb);
KeSetEvent(&ClientFcb->ConnectEvent, IO_NO_INCREMENT, FALSE);
DPRINT("Setting the ConnectEvent for %x\n", ClientCcb);
KeSetEvent(&ClientCcb->ConnectEvent, IO_NO_INCREMENT, FALSE);
return STATUS_PIPE_CONNECTED;
}
@ -151,11 +151,11 @@ NpfsConnectPipe(PIRP Irp,
/* no listening client fcb found */
DPRINT("No listening client fcb found -- waiting for client\n");
Fcb->PipeState = FILE_PIPE_LISTENING_STATE;
Ccb->PipeState = FILE_PIPE_LISTENING_STATE;
Status = NpfsAddListeningServerInstance(Irp, Fcb);
Status = NpfsAddListeningServerInstance(Irp, Ccb);
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
DPRINT("NpfsConnectPipe() done (Status %lx)\n", Status);
@ -164,39 +164,39 @@ NpfsConnectPipe(PIRP Irp,
static NTSTATUS
NpfsDisconnectPipe(PNPFS_FCB Fcb)
NpfsDisconnectPipe(PNPFS_CCB Ccb)
{
NTSTATUS Status;
PNPFS_FCB OtherSide;
PNPFS_CCB OtherSide;
PNPFS_PIPE Pipe;
BOOLEAN Server;
DPRINT("NpfsDisconnectPipe()\n");
Pipe = Fcb->Pipe;
KeLockMutex(&Pipe->FcbListLock);
Pipe = Ccb->Pipe;
KeLockMutex(&Pipe->CcbListLock);
if (Fcb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
if (Ccb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
{
DPRINT("Pipe is already disconnected\n");
Status = STATUS_SUCCESS;
}
else if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
else if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
Server = (Fcb->PipeEnd == FILE_PIPE_SERVER_END);
OtherSide = Fcb->OtherSide;
Fcb->OtherSide = NULL;
Fcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
Server = (Ccb->PipeEnd == FILE_PIPE_SERVER_END);
OtherSide = Ccb->OtherSide;
Ccb->OtherSide = NULL;
Ccb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
/* Lock the server first */
if (Server)
{
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
ExAcquireFastMutex(&OtherSide->DataListLock);
}
else
{
ExAcquireFastMutex(&OtherSide->DataListLock);
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
}
OtherSide->PipeState = FILE_PIPE_DISCONNECTED_STATE;
OtherSide->OtherSide = NULL;
@ -209,27 +209,27 @@ NpfsDisconnectPipe(PNPFS_FCB Fcb)
if (Server)
{
ExReleaseFastMutex(&OtherSide->DataListLock);
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
}
else
{
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
ExReleaseFastMutex(&OtherSide->DataListLock);
}
Status = STATUS_SUCCESS;
}
else if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
else if (Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
{
PLIST_ENTRY Entry;
PNPFS_WAITER_ENTRY WaitEntry = NULL;
BOOLEAN Complete = FALSE;
PIRP Irp = NULL;
Entry = Fcb->Pipe->WaiterListHead.Flink;
while (Entry != &Fcb->Pipe->WaiterListHead)
Entry = Ccb->Pipe->WaiterListHead.Flink;
while (Entry != &Ccb->Pipe->WaiterListHead)
{
WaitEntry = CONTAINING_RECORD(Entry, NPFS_WAITER_ENTRY, Entry);
if (WaitEntry->Fcb == Fcb)
if (WaitEntry->Ccb == Ccb)
{
RemoveEntryList(Entry);
Irp = CONTAINING_RECORD(Entry, IRP, Tail.Overlay.DriverContext);
@ -248,10 +248,10 @@ NpfsDisconnectPipe(PNPFS_FCB Fcb)
IoCompleteRequest(Irp, IO_NO_INCREMENT);
}
}
Fcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
Ccb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
Status = STATUS_SUCCESS;
}
else if (Fcb->PipeState == FILE_PIPE_CLOSING_STATE)
else if (Ccb->PipeState == FILE_PIPE_CLOSING_STATE)
{
Status = STATUS_PIPE_CLOSING;
}
@ -259,44 +259,44 @@ NpfsDisconnectPipe(PNPFS_FCB Fcb)
{
Status = STATUS_UNSUCCESSFUL;
}
KeUnlockMutex(&Pipe->FcbListLock);
KeUnlockMutex(&Pipe->CcbListLock);
return Status;
}
static NTSTATUS
NpfsWaitPipe(PIRP Irp,
PNPFS_FCB Fcb)
PNPFS_CCB Ccb)
{
PNPFS_PIPE Pipe;
PLIST_ENTRY current_entry;
PNPFS_FCB ServerFcb;
PNPFS_CCB ServerCcb;
PFILE_PIPE_WAIT_FOR_BUFFER WaitPipe;
NTSTATUS Status;
DPRINT("NpfsWaitPipe\n");
WaitPipe = (PFILE_PIPE_WAIT_FOR_BUFFER)Irp->AssociatedIrp.SystemBuffer;
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
if (Fcb->PipeState != 0)
if (Ccb->PipeState != 0)
{
DPRINT("Pipe is not in passive (waiting) state!\n");
return STATUS_UNSUCCESSFUL;
}
/* search for listening server */
current_entry = Pipe->ServerFcbListHead.Flink;
while (current_entry != &Pipe->ServerFcbListHead)
current_entry = Pipe->ServerCcbListHead.Flink;
while (current_entry != &Pipe->ServerCcbListHead)
{
ServerFcb = CONTAINING_RECORD(current_entry,
NPFS_FCB,
FcbListEntry);
ServerCcb = CONTAINING_RECORD(current_entry,
NPFS_CCB,
CcbListEntry);
if (ServerFcb->PipeState == FILE_PIPE_LISTENING_STATE)
if (ServerCcb->PipeState == FILE_PIPE_LISTENING_STATE)
{
/* found a listening server fcb */
DPRINT("Listening server fcb found -- connecting\n");
/* found a listening server CCB */
DPRINT("Listening server CCB found -- connecting\n");
return STATUS_SUCCESS;
}
@ -305,7 +305,7 @@ NpfsWaitPipe(PIRP Irp,
}
/* no listening server fcb found -- wait for one */
Status = KeWaitForSingleObject(&Fcb->ConnectEvent,
Status = KeWaitForSingleObject(&Ccb->ConnectEvent,
UserRequest,
KernelMode,
FALSE,
@ -341,26 +341,42 @@ NpfsPeekPipe(PIRP Irp,
ULONG OutputBufferLength;
PNPFS_PIPE Pipe;
PFILE_PIPE_PEEK_BUFFER Reply;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
NTSTATUS Status;
DPRINT("NpfsPeekPipe\n");
DPRINT1("NpfsPeekPipe\n");
OutputBufferLength = IoStack->Parameters.DeviceIoControl.OutputBufferLength;
DPRINT1("OutputBufferLength: %lu\n", OutputBufferLength);
/* Validate parameters */
if (OutputBufferLength < sizeof(FILE_PIPE_PEEK_BUFFER))
{
DPRINT("Buffer too small\n");
DPRINT1("Buffer too small\n");
return STATUS_INVALID_PARAMETER;
}
Fcb = IoStack->FileObject->FsContext;
Ccb = IoStack->FileObject->FsContext2;
Reply = (PFILE_PIPE_PEEK_BUFFER)Irp->AssociatedIrp.SystemBuffer;
Pipe = Fcb->Pipe;
Pipe = Ccb->Pipe;
Reply->NamedPipeState = Ccb->PipeState;
Reply->ReadDataAvailable = Ccb->ReadDataAvailable;
DPRINT("ReadDataAvailable: %lu\n", Ccb->ReadDataAvailable);
Reply->NumberOfMessages = 0; /* FIXME */
Reply->MessageLength = 0; /* FIXME */
Reply->Data[0] = 0; /* FIXME */
// Irp->IoStatus.Information = sizeof(FILE_PIPE_PEEK_BUFFER);
// Status = STATUS_SUCCESS;
Status = STATUS_NOT_IMPLEMENTED;
DPRINT1("NpfsPeekPipe done\n");
return Status;
}
@ -374,7 +390,7 @@ NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
NTSTATUS Status;
PNPFS_DEVICE_EXTENSION DeviceExt;
PNPFS_PIPE Pipe;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
DPRINT("NpfsFileSystemContol(DeviceObject %p Irp %p)\n", DeviceObject, Irp);
@ -383,9 +399,9 @@ NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
DPRINT("IoStack: %p\n", IoStack);
FileObject = IoStack->FileObject;
DPRINT("FileObject: %p\n", FileObject);
Fcb = FileObject->FsContext;
DPRINT("Fcb: %p\n", Fcb);
Pipe = Fcb->Pipe;
Ccb = FileObject->FsContext2;
DPRINT("CCB: %p\n", Ccb);
Pipe = Ccb->Pipe;
DPRINT("Pipe: %p\n", Pipe);
DPRINT("PipeName: %wZ\n", &Pipe->PipeName);
@ -400,12 +416,12 @@ NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
case FSCTL_PIPE_DISCONNECT:
DPRINT("Disconnecting pipe %wZ\n", &Pipe->PipeName);
Status = NpfsDisconnectPipe(Fcb);
Status = NpfsDisconnectPipe(Ccb);
break;
case FSCTL_PIPE_LISTEN:
DPRINT("Connecting pipe %wZ\n", &Pipe->PipeName);
Status = NpfsConnectPipe(Irp, Fcb);
Status = NpfsConnectPipe(Irp, Ccb);
break;
case FSCTL_PIPE_PEEK:
@ -427,7 +443,7 @@ NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
case FSCTL_PIPE_WAIT:
DPRINT("Waiting for pipe %wZ\n", &Pipe->PipeName);
Status = NpfsWaitPipe(Irp, Fcb);
Status = NpfsWaitPipe(Irp, Ccb);
break;
case FSCTL_PIPE_IMPERSONATE:

16
reactos/drivers/filesystems/np/npfs.h
View file

@ -19,9 +19,9 @@ typedef struct _NPFS_PIPE
{
UNICODE_STRING PipeName;
LIST_ENTRY PipeListEntry;
KMUTEX FcbListLock;
LIST_ENTRY ServerFcbListHead;
LIST_ENTRY ClientFcbListHead;
KMUTEX CcbListLock;
LIST_ENTRY ServerCcbListHead;
LIST_ENTRY ClientCcbListHead;
LIST_ENTRY WaiterListHead;
LIST_ENTRY EmptyBufferListHead;
ULONG PipeType;
@ -36,10 +36,10 @@ typedef struct _NPFS_PIPE
LARGE_INTEGER TimeOut;
} NPFS_PIPE, *PNPFS_PIPE;
typedef struct _NPFS_FCB
typedef struct _NPFS_CCB
{
LIST_ENTRY FcbListEntry;
struct _NPFS_FCB* OtherSide;
LIST_ENTRY CcbListEntry;
struct _NPFS_CCB* OtherSide;
struct ETHREAD *Thread;
PNPFS_PIPE Pipe;
KEVENT ConnectEvent;
@ -58,7 +58,7 @@ typedef struct _NPFS_FCB
ULONG MaxDataLength;
FAST_MUTEX DataListLock; /* Data queue lock */
} NPFS_FCB, *PNPFS_FCB;
} NPFS_CCB, *PNPFS_CCB;
typedef struct _NPFS_CONTEXT
{
@ -80,7 +80,7 @@ typedef struct _NPFS_THREAD_CONTEXT
typedef struct _NPFS_WAITER_ENTRY
{
LIST_ENTRY Entry;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
} NPFS_WAITER_ENTRY, *PNPFS_WAITER_ENTRY;

248
reactos/drivers/filesystems/np/rw.c
View file

@ -50,7 +50,7 @@ NpfsReadWriteCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
PNPFS_CONTEXT Context;
PNPFS_DEVICE_EXTENSION DeviceExt;
PIO_STACK_LOCATION IoStack;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
BOOLEAN Complete = FALSE;
DPRINT("NpfsReadWriteCancelRoutine(DeviceObject %x, Irp %x)\n", DeviceObject, Irp);
@ -60,14 +60,14 @@ NpfsReadWriteCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
Context = (PNPFS_CONTEXT)&Irp->Tail.Overlay.DriverContext;
DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
IoStack = IoGetCurrentIrpStackLocation(Irp);
Fcb = IoStack->FileObject->FsContext;
Ccb = IoStack->FileObject->FsContext2;
KeLockMutex(&DeviceExt->PipeListLock);
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
switch(IoStack->MajorFunction)
{
case IRP_MJ_READ:
if (Fcb->ReadRequestListHead.Flink != &Context->ListEntry)
if (Ccb->ReadRequestListHead.Flink != &Context->ListEntry)
{
/* we are not the first in the list, remove an complete us */
RemoveEntryList(&Context->ListEntry);
@ -75,13 +75,13 @@ NpfsReadWriteCancelRoutine(IN PDEVICE_OBJECT DeviceObject,
}
else
{
KeSetEvent(&Fcb->ReadEvent, IO_NO_INCREMENT, FALSE);
KeSetEvent(&Ccb->ReadEvent, IO_NO_INCREMENT, FALSE);
}
break;
default:
KEBUGCHECK(0);
}
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
KeUnlockMutex(&DeviceExt->PipeListLock);
if (Complete)
{
@ -105,7 +105,7 @@ NpfsWaiterThread(PVOID InitContext)
PIO_STACK_LOCATION IoStack = NULL;
PNPFS_CONTEXT Context;
PNPFS_CONTEXT NextContext;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
KeLockMutex(&ThreadContext->DeviceExt->PipeListLock);
@ -166,16 +166,16 @@ NpfsWaiterThread(PVOID InitContext)
if (Cancel)
{
Fcb = IoStack->FileObject->FsContext;
ExAcquireFastMutex(&Fcb->DataListLock);
Ccb = IoStack->FileObject->FsContext2;
ExAcquireFastMutex(&Ccb->DataListLock);
RemoveEntryList(&Context->ListEntry);
switch (IoStack->MajorFunction)
{
case IRP_MJ_READ:
if (!IsListEmpty(&Fcb->ReadRequestListHead))
if (!IsListEmpty(&Ccb->ReadRequestListHead))
{
/* put the next request on the wait list */
NextContext = CONTAINING_RECORD(Fcb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
NextContext = CONTAINING_RECORD(Ccb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
ThreadContext->WaitObjectArray[ThreadContext->Count] = NextContext->WaitEvent;
NextIrp = CONTAINING_RECORD(NextContext, IRP, Tail.Overlay.DriverContext);
ThreadContext->WaitIrpArray[ThreadContext->Count] = NextIrp;
@ -186,7 +186,7 @@ NpfsWaiterThread(PVOID InitContext)
default:
KEBUGCHECK(0);
}
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
}
}
else
@ -294,11 +294,11 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
PFILE_OBJECT FileObject;
NTSTATUS Status;
NTSTATUS OriginalStatus = STATUS_SUCCESS;
PNPFS_FCB Fcb;
PNPFS_CCB Ccb;
PNPFS_CONTEXT Context;
KEVENT Event;
ULONG Length;
ULONG Information;
ULONG Information = 0;
ULONG CopyLength;
ULONG TempLength;
BOOLEAN IsOriginalRequest = TRUE;
@ -315,15 +315,15 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
}
FileObject = IoGetCurrentIrpStackLocation(Irp)->FileObject;
Fcb = FileObject->FsContext;
Ccb = FileObject->FsContext2;
Context = (PNPFS_CONTEXT)&Irp->Tail.Overlay.DriverContext;
if (Fcb->OtherSide == NULL)
if (Ccb->OtherSide == NULL)
{
DPRINT("Pipe is NOT connected!\n");
if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
if (Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
Status = STATUS_PIPE_LISTENING;
else if (Fcb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
else if (Ccb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
Status = STATUS_PIPE_DISCONNECTED;
else
Status = STATUS_UNSUCCESSFUL;
@ -331,7 +331,7 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
goto done;
}
if (Fcb->Data == NULL)
if (Ccb->Data == NULL)
{
DPRINT1("Pipe is NOT readable!\n");
Status = STATUS_UNSUCCESSFUL;
@ -339,16 +339,16 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
goto done;
}
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
if (IoIsOperationSynchronous(Irp))
{
InsertTailList(&Fcb->ReadRequestListHead, &Context->ListEntry);
if (Fcb->ReadRequestListHead.Flink != &Context->ListEntry)
InsertTailList(&Ccb->ReadRequestListHead, &Context->ListEntry);
if (Ccb->ReadRequestListHead.Flink != &Context->ListEntry)
{
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
Context->WaitEvent = &Event;
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
Status = KeWaitForSingleObject(&Event,
Executive,
KernelMode,
@ -358,21 +358,21 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
{
KEBUGCHECK(0);
}
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
}
Irp->IoStatus.Information = 0;
}
else
{
KIRQL oldIrql;
if (IsListEmpty(&Fcb->ReadRequestListHead) ||
Fcb->ReadRequestListHead.Flink != &Context->ListEntry)
if (IsListEmpty(&Ccb->ReadRequestListHead) ||
Ccb->ReadRequestListHead.Flink != &Context->ListEntry)
{
/* this is a new request */
Irp->IoStatus.Information = 0;
Context->WaitEvent = &Fcb->ReadEvent;
InsertTailList(&Fcb->ReadRequestListHead, &Context->ListEntry);
if (Fcb->ReadRequestListHead.Flink != &Context->ListEntry)
Context->WaitEvent = &Ccb->ReadEvent;
InsertTailList(&Ccb->ReadRequestListHead, &Context->ListEntry);
if (Ccb->ReadRequestListHead.Flink != &Context->ListEntry)
{
/* there was already a request on the list */
IoAcquireCancelSpinLock(&oldIrql);
@ -380,13 +380,13 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
{
IoReleaseCancelSpinLock(oldIrql);
RemoveEntryList(&Context->ListEntry);
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
Status = STATUS_CANCELLED;
goto done;
}
(void)IoSetCancelRoutine(Irp, NpfsReadWriteCancelRoutine);
IoReleaseCancelSpinLock(oldIrql);
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
IoMarkIrpPending(Irp);
Status = STATUS_PENDING;
goto done;
@ -406,94 +406,94 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
while (1)
{
if (Fcb->ReadDataAvailable == 0)
if (Ccb->ReadDataAvailable == 0)
{
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
ASSERT(Fcb->OtherSide != NULL);
KeSetEvent(&Fcb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
ASSERT(Ccb->OtherSide != NULL);
KeSetEvent(&Ccb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
}
if (Information > 0 &&
(Fcb->Pipe->ReadMode != FILE_PIPE_BYTE_STREAM_MODE ||
Fcb->PipeState != FILE_PIPE_CONNECTED_STATE))
(Ccb->Pipe->ReadMode != FILE_PIPE_BYTE_STREAM_MODE ||
Ccb->PipeState != FILE_PIPE_CONNECTED_STATE))
{
break;
}
if (Fcb->PipeState != FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState != FILE_PIPE_CONNECTED_STATE)
{
DPRINT("PipeState: %x\n", Fcb->PipeState);
DPRINT("PipeState: %x\n", Ccb->PipeState);
Status = STATUS_PIPE_BROKEN;
break;
}
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
if (IoIsOperationSynchronous(Irp))
{
/* Wait for ReadEvent to become signaled */
DPRINT("Waiting for readable data (%wZ)\n", &Fcb->Pipe->PipeName);
Status = KeWaitForSingleObject(&Fcb->ReadEvent,
DPRINT1("Waiting for readable data (%wZ)\n", &Ccb->Pipe->PipeName);
Status = KeWaitForSingleObject(&Ccb->ReadEvent,
UserRequest,
KernelMode,
FALSE,
NULL);
DPRINT("Finished waiting (%wZ)! Status: %x\n", &Fcb->Pipe->PipeName, Status);
ExAcquireFastMutex(&Fcb->DataListLock);
DPRINT("Finished waiting (%wZ)! Status: %x\n", &Ccb->Pipe->PipeName, Status);
ExAcquireFastMutex(&Ccb->DataListLock);
}
else
{
Context = (PNPFS_CONTEXT)&Irp->Tail.Overlay.DriverContext;
Context->WaitEvent = &Fcb->ReadEvent;
Context->WaitEvent = &Ccb->ReadEvent;
Status = NpfsAddWaitingReadWriteRequest(DeviceObject, Irp);
if (NT_SUCCESS(Status))
{
Status = STATUS_PENDING;
}
ExAcquireFastMutex(&Fcb->DataListLock);
ExAcquireFastMutex(&Ccb->DataListLock);
break;
}
}
ASSERT(IoGetCurrentIrpStackLocation(Irp)->FileObject != NULL);
if (Fcb->Pipe->ReadMode == FILE_PIPE_BYTE_STREAM_MODE)
if (Ccb->Pipe->ReadMode == FILE_PIPE_BYTE_STREAM_MODE)
{
DPRINT("Byte stream mode\n");
/* Byte stream mode */
while (Length > 0 && Fcb->ReadDataAvailable > 0)
while (Length > 0 && Ccb->ReadDataAvailable > 0)
{
CopyLength = min(Fcb->ReadDataAvailable, Length);
if ((ULONG_PTR)Fcb->ReadPtr + CopyLength <= (ULONG_PTR)Fcb->Data + Fcb->MaxDataLength)
CopyLength = min(Ccb->ReadDataAvailable, Length);
if ((ULONG_PTR)Ccb->ReadPtr + CopyLength <= (ULONG_PTR)Ccb->Data + Ccb->MaxDataLength)
{
memcpy(Buffer, Fcb->ReadPtr, CopyLength);
Fcb->ReadPtr = (PVOID)((ULONG_PTR)Fcb->ReadPtr + CopyLength);
if (Fcb->ReadPtr == (PVOID)((ULONG_PTR)Fcb->Data + Fcb->MaxDataLength))
memcpy(Buffer, Ccb->ReadPtr, CopyLength);
Ccb->ReadPtr = (PVOID)((ULONG_PTR)Ccb->ReadPtr + CopyLength);
if (Ccb->ReadPtr == (PVOID)((ULONG_PTR)Ccb->Data + Ccb->MaxDataLength))
{
Fcb->ReadPtr = Fcb->Data;
Ccb->ReadPtr = Ccb->Data;
}
}
else
{
TempLength = (ULONG)((ULONG_PTR)Fcb->Data + Fcb->MaxDataLength - (ULONG_PTR)Fcb->ReadPtr);
memcpy(Buffer, Fcb->ReadPtr, TempLength);
memcpy((PVOID)((ULONG_PTR)Buffer + TempLength), Fcb->Data, CopyLength - TempLength);
Fcb->ReadPtr = (PVOID)((ULONG_PTR)Fcb->Data + CopyLength - TempLength);
TempLength = (ULONG)((ULONG_PTR)Ccb->Data + Ccb->MaxDataLength - (ULONG_PTR)Ccb->ReadPtr);
memcpy(Buffer, Ccb->ReadPtr, TempLength);
memcpy((PVOID)((ULONG_PTR)Buffer + TempLength), Ccb->Data, CopyLength - TempLength);
Ccb->ReadPtr = (PVOID)((ULONG_PTR)Ccb->Data + CopyLength - TempLength);
}
Buffer = (PVOID)((ULONG_PTR)Buffer + CopyLength);
Length -= CopyLength;
Information += CopyLength;
Fcb->ReadDataAvailable -= CopyLength;
Fcb->WriteQuotaAvailable += CopyLength;
Ccb->ReadDataAvailable -= CopyLength;
Ccb->WriteQuotaAvailable += CopyLength;
}
if (Length == 0)
{
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
KeSetEvent(&Fcb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
KeSetEvent(&Ccb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
}
KeResetEvent(&Fcb->ReadEvent);
KeResetEvent(&Ccb->ReadEvent);
break;
}
}
@ -502,11 +502,11 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
DPRINT("Message mode\n");
/* Message mode */
if (Fcb->ReadDataAvailable)
if (Ccb->ReadDataAvailable)
{
/* Truncate the message if the receive buffer is too small */
CopyLength = min(Fcb->ReadDataAvailable, Length);
memcpy(Buffer, Fcb->Data, CopyLength);
CopyLength = min(Ccb->ReadDataAvailable, Length);
memcpy(Buffer, Ccb->Data, CopyLength);
#ifndef NDEBUG
DPRINT("Length %d Buffer %x\n",CopyLength,Buffer);
@ -515,22 +515,22 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
Information = CopyLength;
if (Fcb->ReadDataAvailable > Length)
if (Ccb->ReadDataAvailable > Length)
{
memmove(Fcb->Data, (PVOID)((ULONG_PTR)Fcb->Data + Length),
Fcb->ReadDataAvailable - Length);
Fcb->ReadDataAvailable -= Length;
memmove(Ccb->Data, (PVOID)((ULONG_PTR)Ccb->Data + Length),
Ccb->ReadDataAvailable - Length);
Ccb->ReadDataAvailable -= Length;
Status = STATUS_MORE_ENTRIES;
}
else
{
KeResetEvent(&Fcb->ReadEvent);
if (Fcb->PipeState == FILE_PIPE_CONNECTED_STATE)
KeResetEvent(&Ccb->ReadEvent);
if (Ccb->PipeState == FILE_PIPE_CONNECTED_STATE)
{
KeSetEvent(&Fcb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
KeSetEvent(&Ccb->OtherSide->WriteEvent, IO_NO_INCREMENT, FALSE);
}
Fcb->ReadDataAvailable = 0;
Fcb->WriteQuotaAvailable = Fcb->MaxDataLength;
Ccb->ReadDataAvailable = 0;
Ccb->WriteQuotaAvailable = Ccb->MaxDataLength;
}
}
@ -548,12 +548,12 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
if (IoIsOperationSynchronous(Irp))
{
RemoveEntryList(&Context->ListEntry);
if (!IsListEmpty(&Fcb->ReadRequestListHead))
if (!IsListEmpty(&Ccb->ReadRequestListHead))
{
Context = CONTAINING_RECORD(Fcb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
Context = CONTAINING_RECORD(Ccb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
KeSetEvent(Context->WaitEvent, IO_NO_INCREMENT, FALSE);
}
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
IoCompleteRequest(Irp, IO_NO_INCREMENT);
DPRINT("NpfsRead done (Status %lx)\n", Status);
@ -568,19 +568,19 @@ NpfsRead(IN PDEVICE_OBJECT DeviceObject,
}
if (Status == STATUS_PENDING)
{
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
DPRINT("NpfsRead done (Status %lx)\n", OriginalStatus);
return OriginalStatus;
}
RemoveEntryList(&Context->ListEntry);
IoCompleteRequest(Irp, IO_NO_INCREMENT);
if (IsListEmpty(&Fcb->ReadRequestListHead))
if (IsListEmpty(&Ccb->ReadRequestListHead))
{
ExReleaseFastMutex(&Fcb->DataListLock);
ExReleaseFastMutex(&Ccb->DataListLock);
DPRINT("NpfsRead done (Status %lx)\n", OriginalStatus);
return OriginalStatus;
}
Context = CONTAINING_RECORD(Fcb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
Context = CONTAINING_RECORD(Ccb->ReadRequestListHead.Flink, NPFS_CONTEXT, ListEntry);
Irp = CONTAINING_RECORD(Context, IRP, Tail.Overlay.DriverContext);
}
}
@ -603,8 +603,8 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
{
PIO_STACK_LOCATION IoStack;
PFILE_OBJECT FileObject;
PNPFS_FCB Fcb = NULL;
PNPFS_FCB ReaderFcb;
PNPFS_CCB Ccb = NULL;
PNPFS_CCB ReaderCcb;
PNPFS_PIPE Pipe = NULL;
PUCHAR Buffer;
NTSTATUS Status = STATUS_SUCCESS;
@ -621,9 +621,9 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
DPRINT("FileObject %p\n", FileObject);
DPRINT("Pipe name %wZ\n", &FileObject->FileName);
Fcb = FileObject->FsContext;
ReaderFcb = Fcb->OtherSide;
Pipe = Fcb->Pipe;
Ccb = FileObject->FsContext2;
ReaderCcb = Ccb->OtherSide;
Pipe = Ccb->Pipe;
Length = IoStack->Parameters.Write.Length;
Offset = IoStack->Parameters.Write.ByteOffset.u.LowPart;
@ -637,12 +637,12 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
goto done;
}
if (ReaderFcb == NULL)
if (ReaderCcb == NULL)
{
DPRINT("Pipe is NOT connected!\n");
if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
if (Ccb->PipeState == FILE_PIPE_LISTENING_STATE)
Status = STATUS_PIPE_LISTENING;
else if (Fcb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
else if (Ccb->PipeState == FILE_PIPE_DISCONNECTED_STATE)
Status = STATUS_PIPE_DISCONNECTED;
else
Status = STATUS_UNSUCCESSFUL;
@ -650,7 +650,7 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
goto done;
}
if (ReaderFcb->Data == NULL)
if (ReaderCcb->Data == NULL)
{
DPRINT("Pipe is NOT writable!\n");
Status = STATUS_UNSUCCESSFUL;
@ -661,7 +661,7 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
Status = STATUS_SUCCESS;
Buffer = MmGetSystemAddressForMdl (Irp->MdlAddress);
ExAcquireFastMutex(&ReaderFcb->DataListLock);
ExAcquireFastMutex(&ReaderCcb->DataListLock);
#ifndef NDEBUG
DPRINT("Length %d Buffer %x Offset %x\n",Length,Buffer,Offset);
HexDump(Buffer, Length);
@ -669,35 +669,35 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
while(1)
{
if (ReaderFcb->WriteQuotaAvailable == 0)
if (ReaderCcb->WriteQuotaAvailable == 0)
{
KeSetEvent(&ReaderFcb->ReadEvent, IO_NO_INCREMENT, FALSE);
if (Fcb->PipeState != FILE_PIPE_CONNECTED_STATE)
KeSetEvent(&ReaderCcb->ReadEvent, IO_NO_INCREMENT, FALSE);
if (Ccb->PipeState != FILE_PIPE_CONNECTED_STATE)
{
Status = STATUS_PIPE_BROKEN;
ExReleaseFastMutex(&ReaderFcb->DataListLock);
ExReleaseFastMutex(&ReaderCcb->DataListLock);
goto done;
}
ExReleaseFastMutex(&ReaderFcb->DataListLock);
ExReleaseFastMutex(&ReaderCcb->DataListLock);
DPRINT("Waiting for buffer space (%S)\n", Pipe->PipeName.Buffer);
Status = KeWaitForSingleObject(&Fcb->WriteEvent,
Status = KeWaitForSingleObject(&Ccb->WriteEvent,
UserRequest,
KernelMode,
FALSE,
NULL);
DPRINT("Finished waiting (%S)! Status: %x\n", Pipe->PipeName.Buffer, Status);
ExAcquireFastMutex(&ReaderFcb->DataListLock);
ExAcquireFastMutex(&ReaderCcb->DataListLock);
/*
* It's possible that the event was signaled because the
* other side of pipe was closed.
*/
if (Fcb->PipeState != FILE_PIPE_CONNECTED_STATE)
if (Ccb->PipeState != FILE_PIPE_CONNECTED_STATE)
{
DPRINT("PipeState: %x\n", Fcb->PipeState);
DPRINT("PipeState: %x\n", Ccb->PipeState);
Status = STATUS_PIPE_BROKEN;
ExReleaseFastMutex(&ReaderFcb->DataListLock);
ExReleaseFastMutex(&ReaderCcb->DataListLock);
goto done;
}
}
@ -705,38 +705,38 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
if (Pipe->WriteMode == FILE_PIPE_BYTE_STREAM_MODE)
{
DPRINT("Byte stream mode\n");
while (Length > 0 && ReaderFcb->WriteQuotaAvailable > 0)
while (Length > 0 && ReaderCcb->WriteQuotaAvailable > 0)
{
CopyLength = min(Length, ReaderFcb->WriteQuotaAvailable);
if ((ULONG_PTR)ReaderFcb->WritePtr + CopyLength <= (ULONG_PTR)ReaderFcb->Data + ReaderFcb->MaxDataLength)
CopyLength = min(Length, ReaderCcb->WriteQuotaAvailable);
if ((ULONG_PTR)ReaderCcb->WritePtr + CopyLength <= (ULONG_PTR)ReaderCcb->Data + ReaderCcb->MaxDataLength)
{
memcpy(ReaderFcb->WritePtr, Buffer, CopyLength);
ReaderFcb->WritePtr = (PVOID)((ULONG_PTR)ReaderFcb->WritePtr + CopyLength);
if ((ULONG_PTR)ReaderFcb->WritePtr == (ULONG_PTR)ReaderFcb->Data + ReaderFcb->MaxDataLength)
memcpy(ReaderCcb->WritePtr, Buffer, CopyLength);
ReaderCcb->WritePtr = (PVOID)((ULONG_PTR)ReaderCcb->WritePtr + CopyLength);
if ((ULONG_PTR)ReaderCcb->WritePtr == (ULONG_PTR)ReaderCcb->Data + ReaderCcb->MaxDataLength)
{
ReaderFcb->WritePtr = ReaderFcb->Data;
ReaderCcb->WritePtr = ReaderCcb->Data;
}
}
else
{
TempLength = (ULONG)((ULONG_PTR)ReaderFcb->Data + ReaderFcb->MaxDataLength - (ULONG_PTR)ReaderFcb->WritePtr);
memcpy(ReaderFcb->WritePtr, Buffer, TempLength);
memcpy(ReaderFcb->Data, Buffer + TempLength, CopyLength - TempLength);
ReaderFcb->WritePtr = (PVOID)((ULONG_PTR)ReaderFcb->Data + CopyLength - TempLength);
TempLength = (ULONG)((ULONG_PTR)ReaderCcb->Data + ReaderCcb->MaxDataLength - (ULONG_PTR)ReaderCcb->WritePtr);
memcpy(ReaderCcb->WritePtr, Buffer, TempLength);
memcpy(ReaderCcb->Data, Buffer + TempLength, CopyLength - TempLength);
ReaderCcb->WritePtr = (PVOID)((ULONG_PTR)ReaderCcb->Data + CopyLength - TempLength);
}
Buffer += CopyLength;
Length -= CopyLength;
Information += CopyLength;
ReaderFcb->ReadDataAvailable += CopyLength;
ReaderFcb->WriteQuotaAvailable -= CopyLength;
ReaderCcb->ReadDataAvailable += CopyLength;
ReaderCcb->WriteQuotaAvailable -= CopyLength;
}
if (Length == 0)
{
KeSetEvent(&ReaderFcb->ReadEvent, IO_NO_INCREMENT, FALSE);
KeResetEvent(&Fcb->WriteEvent);
KeSetEvent(&ReaderCcb->ReadEvent, IO_NO_INCREMENT, FALSE);
KeResetEvent(&Ccb->WriteEvent);
break;
}
}
@ -745,24 +745,24 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
DPRINT("Message mode\n");
if (Length > 0)
{
CopyLength = min(Length, ReaderFcb->WriteQuotaAvailable);
memcpy(ReaderFcb->Data, Buffer, CopyLength);
CopyLength = min(Length, ReaderCcb->WriteQuotaAvailable);
memcpy(ReaderCcb->Data, Buffer, CopyLength);
Information = CopyLength;
ReaderFcb->ReadDataAvailable = CopyLength;
ReaderFcb->WriteQuotaAvailable = 0;
ReaderCcb->ReadDataAvailable = CopyLength;
ReaderCcb->WriteQuotaAvailable = 0;
}
if (Information > 0)
{
KeSetEvent(&ReaderFcb->ReadEvent, IO_NO_INCREMENT, FALSE);
KeResetEvent(&Fcb->WriteEvent);
KeSetEvent(&ReaderCcb->ReadEvent, IO_NO_INCREMENT, FALSE);
KeResetEvent(&Ccb->WriteEvent);
break;
}
}
}
ExReleaseFastMutex(&ReaderFcb->DataListLock);
ExReleaseFastMutex(&ReaderCcb->DataListLock);
done:
Irp->IoStatus.Status = Status;