[ekohl] 50250: [NPFS] - Add NpfsDirectoryControl routine in order to enumerate pipes. - Use NpfsGetFcb and NpfsGetCcb to retrieve the FCB or CCB and use SEH to protect these routines.
1 Jan
2011
1 Jan
'11
12:40 p.m.
Author: ekohl
Date: Sat Jan 1 12:40:24 2011
New Revision: 50250
URL: http://svn.reactos.org/svn/reactos?rev=50250&view=rev
Log:
[NPFS]
- Add NpfsDirectoryControl routine in order to enumerate pipes.
- Use NpfsGetFcb and NpfsGetCcb to retrieve the FCB or CCB and use SEH to protect these
routines.
Added:
trunk/reactos/drivers/filesystems/npfs/dirctl.c (with props)
Modified:
trunk/reactos/drivers/filesystems/npfs/create.c
trunk/reactos/drivers/filesystems/npfs/npfs.c
trunk/reactos/drivers/filesystems/npfs/npfs.h
trunk/reactos/drivers/filesystems/npfs/npfs.rbuild
Modified: trunk/reactos/drivers/filesystems/npfs/create.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/c…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/create.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/create.c [iso-8859-1] Sat Jan 1 12:40:24 2011
@@ -121,6 +121,8 @@
return;
}
+ RtlZeroMemory(Ccb, sizeof(NPFS_CCB));
+
Ccb->Type = CCB_DEVICE;
Ccb->Fcb = Fcb;
@@ -149,6 +151,8 @@
IoStatus->Status = STATUS_NO_MEMORY;
return;
}
+
+ RtlZeroMemory(Ccb, sizeof(NPFS_CCB));
Ccb->Type = CCB_DIRECTORY;
Ccb->Fcb = Fcb;
@@ -881,6 +885,9 @@
{
DPRINT("Closing the root directory!\n");
+ if (Ccb->u.Directory.SearchPattern.Buffer != NULL)
+ ExFreePool(Ccb->u.Directory.SearchPattern.Buffer);
+
ExFreePool(Ccb);
FileObject->FsContext = NULL;
FileObject->FsContext2 = NULL;
Added: trunk/reactos/drivers/filesystems/npfs/dirctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/d…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/dirctl.c (added)
+++ trunk/reactos/drivers/filesystems/npfs/dirctl.c [iso-8859-1] Sat Jan 1 12:40:24 2011
@@ -1,0 +1,250 @@
+/*
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS kernel
+ * FILE: drivers/filesastems/npfs/dirctl.c
+ * PURPOSE: Named pipe filesystem
+ * PROGRAMMER: Eric Kohl
+ */
+
+/* INCLUDES ******************************************************************/
+
+#include "npfs.h"
+
+#define NDEBUG
+#include <debug.h>
+
+/* FUNCTIONS *****************************************************************/
+
+static NTSTATUS
+NpfsQueryDirectory(PNPFS_CCB Ccb,
+ PIRP Irp,
+ PULONG Size)
+{
+ PIO_STACK_LOCATION Stack;
+ LONG BufferLength = 0;
+ PUNICODE_STRING SearchPattern = NULL;
+ FILE_INFORMATION_CLASS FileInformationClass;
+ ULONG FileIndex = 0;
+ PUCHAR Buffer = NULL;
+ BOOLEAN First = FALSE;
+ PLIST_ENTRY CurrentEntry;
+ PNPFS_VCB Vcb;
+ PNPFS_FCB PipeFcb;
+ ULONG PipeIndex;
+ BOOLEAN Found = FALSE;
+ NTSTATUS Status = STATUS_SUCCESS;
+ PFILE_NAMES_INFORMATION NamesBuffer;
+ PFILE_DIRECTORY_INFORMATION DirectoryBuffer;
+
+ Stack = IoGetCurrentIrpStackLocation(Irp);
+
+ /* Obtain the callers parameters */
+ BufferLength = Stack->Parameters.QueryDirectory.Length;
+ SearchPattern = Stack->Parameters.QueryDirectory.FileName;
+ FileInformationClass = Stack->Parameters.QueryDirectory.FileInformationClass;
+ FileIndex = Stack->Parameters.QueryDirectory.FileIndex;
+
+ DPRINT("SearchPattern: %p '%wZ'\n", SearchPattern,
SearchPattern);
+
+ /* Determine Buffer for result */
+ if (Irp->MdlAddress)
+ {
+ Buffer = MmGetSystemAddressForMdl(Irp->MdlAddress);
+ }
+ else
+ {
+ Buffer = Irp->UserBuffer;
+ }
+
+ /* Build the search pattern string */
+ DPRINT("Ccb->u.Directory.SearchPattern.Buffer: %p\n",
Ccb->u.Directory.SearchPattern.Buffer);
+ if (Ccb->u.Directory.SearchPattern.Buffer == NULL)
+ {
+ First = TRUE;
+
+ if (SearchPattern != NULL)
+ {
+ Ccb->u.Directory.SearchPattern.Buffer =
+ ExAllocatePool(NonPagedPool, SearchPattern->Length + sizeof(WCHAR));
+ if (Ccb->u.Directory.SearchPattern.Buffer == NULL)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ Ccb->u.Directory.SearchPattern.Length = SearchPattern->Length;
+ Ccb->u.Directory.SearchPattern.MaximumLength = SearchPattern->Length +
sizeof(WCHAR);
+ RtlCopyMemory(Ccb->u.Directory.SearchPattern.Buffer,
+ SearchPattern->Buffer,
+ SearchPattern->Length);
+ Ccb->u.Directory.SearchPattern.Buffer[SearchPattern->Length /
sizeof(WCHAR)] = 0;
+ }
+ else
+ {
+ Ccb->u.Directory.SearchPattern.Buffer =
+ ExAllocatePool(NonPagedPool, 2 * sizeof(WCHAR));
+ if (Ccb->u.Directory.SearchPattern.Buffer == NULL)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ Ccb->u.Directory.SearchPattern.Length = sizeof(WCHAR);
+ Ccb->u.Directory.SearchPattern.MaximumLength = 2 * sizeof(WCHAR);
+ Ccb->u.Directory.SearchPattern.Buffer[0] = L'*';
+ Ccb->u.Directory.SearchPattern.Buffer[1] = 0;
+ }
+ }
+ DPRINT("Search pattern: '%wZ'\n",
&Ccb->u.Directory.SearchPattern);
+
+ /* Determine the file index */
+ if (First || (Stack->Flags & SL_RESTART_SCAN))
+ {
+ FileIndex = 0;
+ } else if ((Stack->Flags & SL_INDEX_SPECIFIED) == 0)
+ {
+ FileIndex = Ccb->u.Directory.FileIndex + 1;
+ }
+ DPRINT("FileIndex: %lu\n", FileIndex);
+
+ DPRINT("Buffer = %p tofind = %wZ\n", Buffer,
&Ccb->u.Directory.SearchPattern);
+
+ PipeIndex = 0;
+
+ Vcb = Ccb->Fcb->Vcb;
+ CurrentEntry = Vcb->PipeListHead.Flink;
+ while (CurrentEntry != &Vcb->PipeListHead && Found == FALSE)
+ {
+ /* Get the FCB of the next pipe */
+ PipeFcb = CONTAINING_RECORD(CurrentEntry,
+ NPFS_FCB,
+ PipeListEntry);
+
+ /* Make sure it is a pipe FCB */
+ ASSERT(PipeFcb->Type == FCB_PIPE);
+
+ DPRINT("PipeName: %wZ\n", &PipeFcb->PipeName);
+
+ if (FsRtlIsNameInExpression(&Ccb->u.Directory.SearchPattern,
+ &PipeFcb->PipeName,
+ TRUE,
+ NULL))
+ {
+ DPRINT("Found pipe: %wZ\n", &PipeFcb->PipeName);
+
+ if (PipeIndex >= FileIndex)
+ {
+ switch (FileInformationClass)
+ {
+ case FileDirectoryInformation:
+ DirectoryBuffer = (PFILE_DIRECTORY_INFORMATION)Buffer;
+ DirectoryBuffer->NextEntryOffset = 0;
+ DirectoryBuffer->FileIndex = PipeIndex;
+ DirectoryBuffer->FileAttributes = FILE_ATTRIBUTE_NORMAL;
+ DirectoryBuffer->EndOfFile.QuadPart =
PipeFcb->CurrentInstances;
+ DirectoryBuffer->AllocationSize.LowPart =
PipeFcb->MaximumInstances;
+ DirectoryBuffer->FileNameLength =
PipeFcb->PipeName.Length;
+ RtlCopyMemory(DirectoryBuffer->FileName,
+ PipeFcb->PipeName.Buffer,
+ PipeFcb->PipeName.Length);
+ *Size = sizeof(FILE_DIRECTORY_INFORMATION) +
PipeFcb->PipeName.Length - 1;
+ Status = STATUS_SUCCESS;
+ break;
+
+ case FileNamesInformation:
+ NamesBuffer = (PFILE_NAMES_INFORMATION)Buffer;
+ NamesBuffer->NextEntryOffset = 0;
+ NamesBuffer->FileIndex = PipeIndex;
+ NamesBuffer->FileNameLength = PipeFcb->PipeName.Length;
+ RtlCopyMemory(NamesBuffer->FileName,
+ PipeFcb->PipeName.Buffer,
+ PipeFcb->PipeName.Length);
+ *Size = sizeof(FILE_NAMES_INFORMATION) +
PipeFcb->PipeName.Length - 1;
+ Status = STATUS_SUCCESS;
+ break;
+
+ default:
+ DPRINT1("Invalid information class: %lu\n",
FileInformationClass);
+ Status = STATUS_INVALID_INFO_CLASS;
+ break;
+ }
+
+ Ccb->u.Directory.FileIndex = PipeIndex;
+ Found = TRUE;
+
+// if (Stack->Flags & SL_RETURN_SINGLE_ENTRY)
+// return STATUS_SUCCESS;
+
+ break;
+ }
+
+ PipeIndex++;
+ }
+
+ CurrentEntry = CurrentEntry->Flink;
+ }
+
+ if (Found == FALSE)
+ Status = STATUS_NO_MORE_FILES;
+
+ return Status;
+}
+
+
+NTSTATUS NTAPI
+NpfsDirectoryControl(PDEVICE_OBJECT DeviceObject,
+ PIRP Irp)
+{
+ PIO_STACK_LOCATION IoStack;
+ PFILE_OBJECT FileObject;
+ PNPFS_CCB Ccb;
+ PNPFS_FCB Fcb;
+ NTSTATUS Status;
+ ULONG Size = 0;
+
+ DPRINT("NpfsDirectoryControl() called\n");
+
+ IoStack = IoGetCurrentIrpStackLocation(Irp);
+
+ FileObject = IoStack->FileObject;
+
+ if (NpfsGetCcb(FileObject, &Ccb) != CCB_DIRECTORY)
+ {
+ Status = STATUS_INVALID_PARAMETER;
+
+ Irp->IoStatus.Status = Status;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return Status;
+ }
+
+ Fcb = Ccb->Fcb;
+
+ switch (IoStack->MinorFunction)
+ {
+ case IRP_MN_QUERY_DIRECTORY:
+ Status = NpfsQueryDirectory(Ccb,
+ Irp,
+ &Size);
+ break;
+
+ case IRP_MN_NOTIFY_CHANGE_DIRECTORY:
+ DPRINT1("IRP_MN_NOTIFY_CHANGE_DIRECTORY\n");
+ Status = STATUS_NOT_IMPLEMENTED;
+ break;
+
+ default:
+ DPRINT1("NPFS: MinorFunction %d\n", IoStack->MinorFunction);
+ Status = STATUS_INVALID_DEVICE_REQUEST;
+ break;
+ }
+
+ Irp->IoStatus.Status = Status;
+ Irp->IoStatus.Information = Size;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return Status;
+}
+
+/* EOF */
Propchange: trunk/reactos/drivers/filesystems/npfs/dirctl.c
------------------------------------------------------------------------------
svn:eol-style = native
Propchange: trunk/reactos/drivers/filesystems/npfs/dirctl.c
------------------------------------------------------------------------------
svn:keywords = author date id revision
Modified: trunk/reactos/drivers/filesystems/npfs/npfs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/npfs.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/npfs.c [iso-8859-1] Sat Jan 1 12:40:24 2011
@@ -44,8 +44,8 @@
NpfsQueryVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = NpfsCleanup;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = NpfsFlushBuffers;
- // DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
- // NpfsDirectoryControl;
+ DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
+ NpfsDirectoryControl;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
NpfsFileSystemControl;
// DriverObject->MajorFunction[IRP_MJ_QUERY_SECURITY] =
@@ -100,4 +100,54 @@
return STATUS_SUCCESS;
}
+
+FCB_TYPE
+NpfsGetFcb(PFILE_OBJECT FileObject,
+ PNPFS_FCB *Fcb)
+{
+ PNPFS_FCB LocalFcb = NULL;
+ FCB_TYPE FcbType = FCB_INVALID;
+
+ _SEH2_TRY
+ {
+ LocalFcb = (PNPFS_FCB)FileObject->FsContext;
+ FcbType = LocalFcb->Type;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ LocalFcb = NULL;
+ FcbType = FCB_INVALID;
+ }
+ _SEH2_END;
+
+ *Fcb = LocalFcb;
+
+ return FcbType;
+}
+
+
+CCB_TYPE
+NpfsGetCcb(PFILE_OBJECT FileObject,
+ PNPFS_CCB *Ccb)
+{
+ PNPFS_CCB LocalCcb = NULL;
+ CCB_TYPE CcbType = CCB_INVALID;
+
+ _SEH2_TRY
+ {
+ LocalCcb = (PNPFS_CCB)FileObject->FsContext2;
+ CcbType = LocalCcb->Type;
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ LocalCcb = NULL;
+ CcbType = CCB_INVALID;
+ }
+ _SEH2_END;
+
+ *Ccb = LocalCcb;
+
+ return CcbType;
+}
+
/* EOF */
Modified: trunk/reactos/drivers/filesystems/npfs/npfs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/npfs.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/npfs.h [iso-8859-1] Sat Jan 1 12:40:24 2011
@@ -3,9 +3,11 @@
#include <ntifs.h>
#include <ndk/iotypes.h>
+#include <pseh/pseh2.h>
typedef enum _FCB_TYPE
{
+ FCB_INVALID,
FCB_DEVICE,
FCB_DIRECTORY,
FCB_PIPE
@@ -13,6 +15,7 @@
typedef enum _CCB_TYPE
{
+ CCB_INVALID,
CCB_DEVICE,
CCB_DIRECTORY,
CCB_PIPE
@@ -55,6 +58,14 @@
LARGE_INTEGER TimeOut;
} NPFS_FCB, *PNPFS_FCB;
+
+typedef struct _NPFS_CCB_DIRECTORY_DATA
+{
+ UNICODE_STRING SearchPattern;
+ ULONG FileIndex;
+} NPFS_CCB_DIRECTORY_DATA, *PNPFS_CCB_DIRECTORY_DATA;
+
+
typedef struct _NPFS_CCB
{
LIST_ENTRY CcbListEntry;
@@ -79,6 +90,12 @@
ULONG MaxDataLength;
FAST_MUTEX DataListLock; /* Data queue lock */
+
+ union
+ {
+ NPFS_CCB_DIRECTORY_DATA Directory;
+ } u;
+
} NPFS_CCB, *PNPFS_CCB;
typedef struct _NPFS_CONTEXT
@@ -130,6 +147,9 @@
DRIVER_DISPATCH NpfsClose;
NTSTATUS NTAPI NpfsClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+DRIVER_DISPATCH NpfsDirectoryControl;
+NTSTATUS NTAPI NpfsDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+
DRIVER_DISPATCH NpfsRead;
NTSTATUS NTAPI NpfsRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
@@ -159,5 +179,12 @@
NpfsFindPipe(PNPFS_VCB Vcb,
PUNICODE_STRING PipeName);
+FCB_TYPE
+NpfsGetFcb(PFILE_OBJECT FileObject,
+ PNPFS_FCB *Fcb);
+
+CCB_TYPE
+NpfsGetCcb(PFILE_OBJECT FileObject,
+ PNPFS_CCB *Ccb);
#endif /* __DRIVERS_FS_NP_NPFS_H */
Modified: trunk/reactos/drivers/filesystems/npfs/npfs.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/npfs.rbuild [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/npfs.rbuild [iso-8859-1] Sat Jan 1 12:40:24
2011
@@ -4,7 +4,9 @@
<include base="npfs">.</include>
<library>ntoskrnl</library>
<library>hal</library>
+ <library>pseh</library>
<file>create.c</file>
+ <file>dirctl.c</file>
<file>finfo.c</file>
<file>fsctrl.c</file>
<file>npfs.c</file>
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ekohl＠svn.reactos.org