Initial publish

1 files changed, 131 insertions, 0 deletions

diff --git a/storage/class/classpnp/src/dispatch.c b/storage/class/classpnp/src/dispatch.c
new file mode 100644
index 00000000..c0296d34
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+++ b/storage/class/classpnp/src/dispatch.c
@@ -0,0 +1,131 @@
+/*++
+
+Copyright (C) Microsoft Corporation, 1991 - 2005
+
+Module Name:
+
+    dispatch.c
+
+Abstract:
+
+    Code to support multiple dispatch tables.
+
+Environment:
+
+    kernel mode only
+
+Notes:
+
+
+Revision History:
+
+--*/
+
+#include "classp.h"
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text(PAGE, ClassInitializeDispatchTables)
+#endif
+
+DRIVER_DISPATCH ClassDispatchUnimplemented;
+
+//
+// Routines start
+//
+
+
+VOID
+ClassInitializeDispatchTables(
+    PCLASS_DRIVER_EXTENSION DriverExtension
+    )
+{
+    ULONG idx;
+
+    PAGED_CODE();
+
+    //
+    // Initialize the standard device dispatch table
+    //
+
+    for (idx = 0; idx <= IRP_MJ_MAXIMUM_FUNCTION; idx++) {
+        DriverExtension->DeviceMajorFunctionTable[idx] = ClassDispatchUnimplemented;
+    }
+
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_CREATE]         = ClassCreateClose;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_CLOSE]          = ClassCreateClose;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_READ]           = ClassReadWrite;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_WRITE]          = ClassReadWrite;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_DEVICE_CONTROL] = ClassDeviceControlDispatch;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_SCSI]           = ClassInternalIoControl;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_SHUTDOWN]       = ClassShutdownFlush;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_FLUSH_BUFFERS]  = ClassShutdownFlush;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_PNP]            = ClassDispatchPnp;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_POWER]          = ClassDispatchPower;
+    DriverExtension->DeviceMajorFunctionTable[IRP_MJ_SYSTEM_CONTROL] = ClassSystemControl;
+
+
+    return;
+}
+
+
+NTSTATUS
+ClassGlobalDispatch(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp
+    )
+
+{
+    PCOMMON_DEVICE_EXTENSION commonExtension = DeviceObject->DeviceExtension;
+    PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
+    // Code Analysis cannot analyze the code paths specific to clients.
+    _Analysis_assume_(FALSE);
+    return (commonExtension->DispatchTable[irpStack->MajorFunction])(DeviceObject, Irp);
+
+}
+
+NTSTATUS
+ClassDispatchUnimplemented(
+    IN PDEVICE_OBJECT DeviceObject,
+    IN PIRP Irp
+    )
+/*++
+
+Routine Description:
+
+    This function is the default dispatch routine.  Its
+    responsibility is simply to set the status in the packet to indicate
+    that the operation requested is invalid for this device type, and then
+    complete the packet.
+
+Arguments:
+
+    DeviceObject - Specifies the device object for which this request is
+        bound.  Ignored by this routine.
+
+    Irp - Specifies the address of the I/O Request Packet (IRP) for this
+        request.
+
+Return Value:
+
+    The final status is always STATUS_INVALID_DEVICE_REQUEST.
+
+
+--*/
+
+{
+    UNREFERENCED_PARAMETER( DeviceObject );
+
+    //
+    // Simply store the appropriate status, complete the request, and return
+    // the same status stored in the packet.
+    //
+
+    if ((IoGetCurrentIrpStackLocation(Irp))->MajorFunction == IRP_MJ_POWER) {
+        PoStartNextPowerIrp(Irp);
+    }
+    Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
+    IoCompleteRequest( Irp, IO_NO_INCREMENT );
+    return STATUS_INVALID_DEVICE_REQUEST;
+}
+
+