[FLTMGR]

- Add stubs for context registration
- Add dispatch and device control handlers
- Implement the load IOCTL. We can now load minifilters with 'fltmc load <myfilter>'

svn path=/trunk/; revision=72595

reactos/drivers/filters/fltmgr/Context.c

@@ -0,0 +1,79 @@
+/*
+* PROJECT:         Filesystem Filter Manager
+* LICENSE:         GPL - See COPYING in the top level directory
+* FILE:            drivers/filters/fltmgr/Context.c
+* PURPOSE:         Contains context routines
+* PROGRAMMERS:     Ged Murphy (gedmurphy@reactos.org)
+*/
+
+/* INCLUDES ******************************************************************/
+
+#include "fltmgr.h"
+#include "fltmgrint.h"
+
+#define NDEBUG
+#include <debug.h>
+
+
+/* DATA *********************************************************************/
+
+static
+BOOLEAN
+IsContextTypeValid(
+    _In_ FLT_CONTEXT_TYPE ContextType
+);
+
+static
+NTSTATUS
+SetupContextHeader(
+    _In_ PFLT_FILTER Filter,
+    _In_ PFLT_CONTEXT_REGISTRATION ContextPtr,
+    _Out_ PALLOCATE_CONTEXT_HEADER ContextHeader
+);
+
+/* EXPORTED FUNCTIONS ******************************************************/
+
+
+
+
+/* INTERNAL FUNCTIONS ******************************************************/
+
+
+NTSTATUS
+FltpRegisterContexts(_In_ PFLT_FILTER Filter,
+                     _In_ const FLT_CONTEXT_REGISTRATION *Context)
+{
+    UNREFERENCED_PARAMETER(Filter);
+    UNREFERENCED_PARAMETER(Context);
+    return STATUS_NOT_IMPLEMENTED;
+}
+
+
+/* PRIVATE FUNCTIONS ******************************************************/
+
+static
+BOOLEAN
+IsContextTypeValid(_In_ FLT_CONTEXT_TYPE ContextType)
+{
+    switch (ContextType)
+    {
+    case FLT_VOLUME_CONTEXT:
+    case FLT_INSTANCE_CONTEXT:
+    case FLT_FILE_CONTEXT:
+    case FLT_STREAM_CONTEXT:
+    case FLT_STREAMHANDLE_CONTEXT:
+    case FLT_TRANSACTION_CONTEXT:
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static
+NTSTATUS
+SetupContextHeader(_In_ PFLT_FILTER Filter,
+                   _In_ PFLT_CONTEXT_REGISTRATION ContextPtr,
+                   _Out_ PALLOCATE_CONTEXT_HEADER ContextHeader)
+{
+    return 0;
+}

reactos/drivers/filters/fltmgr/Dispatch.c

@@ -0,0 +1,129 @@
+/*
+* PROJECT:         Filesystem Filter Manager
+* LICENSE:         GPL - See COPYING in the top level directory
+* FILE:            drivers/filters/fltmgr/Dispatch.c
+* PURPOSE:         Contains dispatch handler routines
+* PROGRAMMERS:     Ged Murphy (gedmurphy@reactos.org)
+*/
+
+/* INCLUDES ******************************************************************/
+
+#include "fltmgr.h"
+#include "fltmgrint.h"
+#include "fltmgr_shared.h"
+
+#define NDEBUG
+#include <debug.h>
+
+
+/* DATA *********************************************************************/
+
+NTSTATUS
+HandleLoadUnloadIoctl(
+    _In_ PDEVICE_OBJECT DeviceObject,
+    _Inout_ PIRP Irp
+);
+
+NTSTATUS
+HandleFindFirstIoctl(
+    _In_ PDEVICE_OBJECT DeviceObject,
+    _Inout_ PIRP Irp
+);
+
+
+/* sdsfds *******************************************************************/
+
+NTSTATUS
+FltpDeviceControlHandler(_In_ PDEVICE_OBJECT DeviceObject,
+                         _Inout_ PIRP Irp)
+{
+    PIO_STACK_LOCATION StackPtr;
+    ULONG ControlCode;
+    NTSTATUS Status;
+
+    StackPtr = IoGetCurrentIrpStackLocation(Irp);
+    FLT_ASSERT(StackPtr->MajorFunction == IRP_MJ_DEVICE_CONTROL);
+
+    ControlCode = StackPtr->Parameters.DeviceIoControl.IoControlCode;
+    switch (ControlCode)
+    {
+        case IOCTL_LOAD_FILTER:
+            Status = HandleLoadUnloadIoctl(DeviceObject, Irp);
+            break;
+
+        case IOCTL_UNLOAD_FILTER:
+            Status = HandleLoadUnloadIoctl(DeviceObject, Irp);
+            break;
+
+        case IOCTL_FIND_FIRST_FILTER:
+            Status = HandleFindFirstIoctl(DeviceObject, Irp);
+            break;
+
+        default:
+            Status = STATUS_INVALID_PARAMETER;
+            break;
+    }
+
+    return Status;
+}
+
+NTSTATUS
+FltpDispatchHandler(_In_ PDEVICE_OBJECT DeviceObject,
+                    _Inout_ PIRP Irp)
+{
+    PIO_STACK_LOCATION StackPtr;
+    StackPtr = IoGetCurrentIrpStackLocation(Irp);
+    UNREFERENCED_PARAMETER(StackPtr);
+
+    // implement me
+
+    return STATUS_SUCCESS;
+}
+
+
+/* INTERNAL FUNCTIONS ******************************************************/
+
+NTSTATUS
+HandleLoadUnloadIoctl(_In_ PDEVICE_OBJECT DeviceObject,
+                      _Inout_ PIRP Irp)
+{
+    PIO_STACK_LOCATION StackPtr;
+    UNICODE_STRING Name;
+    PFILTER_NAME FilterName;
+    ULONG BufferLength;
+    ULONG ControlCode;
+
+    /* Get the IOCTL data from the stack pointer */
+    StackPtr = IoGetCurrentIrpStackLocation(Irp);
+    BufferLength = StackPtr->Parameters.DeviceIoControl.InputBufferLength;
+    ControlCode = StackPtr->Parameters.DeviceIoControl.IoControlCode;
+
+    FLT_ASSERT(ControlCode == IOCTL_LOAD_FILTER || ControlCode == IOCTL_UNLOAD_FILTER);
+
+    /* Make sure the buffer is valid */
+    if (BufferLength < sizeof(FILTER_NAME))
+        return STATUS_INVALID_PARAMETER;
+
+    /* Convert the file name buffer into a string */
+    FilterName = (PFILTER_NAME)Irp->AssociatedIrp.SystemBuffer;
+    Name.Length = FilterName->Length;
+    Name.MaximumLength = FilterName->Length;
+    Name.Buffer = (PWCH)((PCHAR)FilterName + FIELD_OFFSET(FILTER_NAME, FilterName[0]));
+
+    /* Forward the request to our Flt routines */
+    if (ControlCode == IOCTL_LOAD_FILTER)
+    {
+        return FltLoadFilter(&Name);
+    }
+    else
+    {
+        return FltUnloadFilter(&Name);
+    }
+}
+
+NTSTATUS
+HandleFindFirstIoctl(_In_ PDEVICE_OBJECT DeviceObject,
+                     _Inout_ PIRP Irp)
+{
+    return STATUS_NOT_SUPPORTED;
+}