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https://github.com/reactos/reactos.git
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89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Console Driver
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* FILE: drivers/base/condrv/control.c
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* PURPOSE: Console Driver - Controller Device
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* PROGRAMMERS: Hermes Belusca-Maito (hermes.belusca@sfr.fr)
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*/
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/* INCLUDES *******************************************************************/
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#include "condrv.h"
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#include <condrv/ntddcon.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ******************************************************************/
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NTSTATUS NTAPI
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ConDrvCreateController(IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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UNICODE_STRING DeviceName, SymlinkName;
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PCONDRV_DRIVER DriverExtension;
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PDEVICE_OBJECT Controller = NULL;
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DPRINT1("Create the Controller device...\n");
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RtlInitUnicodeString(&DeviceName , DD_CONDRV_CTRL_DEVICE_NAME_U);
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RtlInitUnicodeString(&SymlinkName, DD_CONDRV_CTRL_SYMLNK_NAME_U);
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/* Get the driver extension */
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DriverExtension = (PCONDRV_DRIVER)IoGetDriverObjectExtension(DriverObject,
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DriverObject);
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/* Create the Controller device, if it doesn't exist */
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Status = IoCreateDevice(DriverObject,
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0,
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(PUNICODE_STRING)&DeviceName,
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FILE_DEVICE_UNKNOWN,
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FILE_DEVICE_SECURE_OPEN,
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FALSE,
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&Controller);
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if (!NT_SUCCESS(Status)) goto Done;
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Status = IoCreateSymbolicLink(&SymlinkName, &DeviceName);
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if (!NT_SUCCESS(Status))
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{
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IoDeleteDevice(Controller);
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goto Done;
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}
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Controller->Flags &= ~DO_DEVICE_INITIALIZING;
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/* Save the Controller device */
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DriverExtension->Controller = Controller;
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Done:
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DPRINT1("Done, Status = 0x%08lx\n", Status);
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return Status;
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}
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NTSTATUS NTAPI
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ConDrvDeleteController(IN PDRIVER_OBJECT DriverObject)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PDEVICE_OBJECT Controller;
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UNICODE_STRING SymlinkName;
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DPRINT1("Delete the Controller device...\n");
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/* Retrieve the Controller device */
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Controller = ((PCONDRV_DRIVER)IoGetDriverObjectExtension(DriverObject, DriverObject))->Controller;
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if (!Controller) return STATUS_OBJECT_TYPE_MISMATCH;
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RtlInitUnicodeString(&SymlinkName, DD_CONDRV_CTRL_SYMLNK_NAME_U);
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IoDeleteSymbolicLink(&SymlinkName);
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/* Delete the controller device itself */
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IoDeleteDevice(Controller);
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DPRINT1("Done, Status = 0x%08lx\n", Status);
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return Status;
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}
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/* EOF */
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