/**
* Create (i.e. Open) file entry point.
*
* @param pDevObj Device object.
* @param pIrp Request packet.
*/
NTSTATUS _stdcall VBoxDrvNtCreate(PDEVICE_OBJECT pDevObj, PIRP pIrp)
{
Log(("VBoxDrvNtCreate: RequestorMode=%d\n", pIrp->RequestorMode));
const bool fUnrestricted = pDevObj == g_pDevObjSys;
PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
PFILE_OBJECT pFileObj = pStack->FileObject;
PSUPDRVDEVEXT pDevExt = SUPDRVNT_GET_DEVEXT(pDevObj);
/*
* We are not remotely similar to a directory...
* (But this is possible.)
*/
if (pStack->Parameters.Create.Options & FILE_DIRECTORY_FILE)
{
pIrp->IoStatus.Status = STATUS_NOT_A_DIRECTORY;
pIrp->IoStatus.Information = 0;
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
return STATUS_NOT_A_DIRECTORY;
}
/*
* Don't create a session for kernel clients, they'll close the handle
* immediately and work with the file object via
* VBoxDrvNtInternalDeviceControl. The first request will there be one
* to create a session.
*/
NTSTATUS rcNt;
if (pIrp->RequestorMode == KernelMode)
rcNt = STATUS_SUCCESS;
else
{
/*
* Call common code for the rest.
*/
pFileObj->FsContext = NULL;
PSUPDRVSESSION pSession;
int rc = supdrvCreateSession(pDevExt, true /*fUser*/, fUnrestricted, &pSession);
if (!rc)
pFileObj->FsContext = pSession;
rcNt = pIrp->IoStatus.Status = VBoxDrvNtErr2NtStatus(rc);
}
pIrp->IoStatus.Information = 0;
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
return rcNt;
}
RT_C_DECLS_END
/**
* Driver entry point.
*
* @returns appropriate status code.
* @param pDrvObj Pointer to driver object.
* @param pRegPath Registry base path.
*/
ULONG _stdcall DriverEntry(PDRIVER_OBJECT pDrvObj, PUNICODE_STRING pRegPath)
{
NTSTATUS rc;
/*
* Create device.
* (That means creating a device object and a symbolic link so the DOS
* subsystems (OS/2, win32, ++) can access the device.)
*/
UNICODE_STRING DevName;
RtlInitUnicodeString(&DevName, DEVICE_NAME_NT);
PDEVICE_OBJECT pDevObj;
rc = IoCreateDevice(pDrvObj, sizeof(SUPDRVDEVEXT), &DevName, FILE_DEVICE_UNKNOWN, 0, FALSE, &pDevObj);
if (NT_SUCCESS(rc))
{
UNICODE_STRING DosName;
RtlInitUnicodeString(&DosName, DEVICE_NAME_DOS);
rc = IoCreateSymbolicLink(&DosName, &DevName);
if (NT_SUCCESS(rc))
{
int vrc = RTR0Init(0);
if (RT_SUCCESS(vrc))
{
Log(("VBoxDrv::DriverEntry\n"));
/*
* Initialize the device extension.
*/
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)pDevObj->DeviceExtension;
memset(pDevExt, 0, sizeof(*pDevExt));
vrc = supdrvInitDevExt(pDevExt, sizeof(SUPDRVSESSION));
if (!vrc)
{
/*
* Setup the driver entry points in pDrvObj.
*/
pDrvObj->DriverUnload = VBoxDrvNtUnload;
pDrvObj->MajorFunction[IRP_MJ_CREATE] = VBoxDrvNtCreate;
pDrvObj->MajorFunction[IRP_MJ_CLEANUP] = VBoxDrvNtCleanup;
pDrvObj->MajorFunction[IRP_MJ_CLOSE] = VBoxDrvNtClose;
pDrvObj->MajorFunction[IRP_MJ_DEVICE_CONTROL] = VBoxDrvNtDeviceControl;
pDrvObj->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = VBoxDrvNtInternalDeviceControl;
pDrvObj->MajorFunction[IRP_MJ_READ] = VBoxDrvNtNotSupportedStub;
pDrvObj->MajorFunction[IRP_MJ_WRITE] = VBoxDrvNtNotSupportedStub;
/* more? */
/* Register ourselves for power state changes. */
UNICODE_STRING CallbackName;
OBJECT_ATTRIBUTES Attr;
RtlInitUnicodeString(&CallbackName, L"\\Callback\\PowerState");
InitializeObjectAttributes(&Attr, &CallbackName, OBJ_CASE_INSENSITIVE, NULL, NULL);
rc = ExCreateCallback(&pDevExt->pObjPowerCallback, &Attr, TRUE, TRUE);
if (rc == STATUS_SUCCESS)
pDevExt->hPowerCallback = ExRegisterCallback(pDevExt->pObjPowerCallback, VBoxPowerDispatchCallback, pDevObj);
Log(("VBoxDrv::DriverEntry returning STATUS_SUCCESS\n"));
return STATUS_SUCCESS;
}
Log(("supdrvInitDevExit failed with vrc=%d!\n", vrc));
rc = VBoxDrvNtErr2NtStatus(vrc);
IoDeleteSymbolicLink(&DosName);
RTR0Term();
}
else
{
Log(("RTR0Init failed with vrc=%d!\n", vrc));
rc = VBoxDrvNtErr2NtStatus(vrc);
}
}
else
Log(("IoCreateSymbolicLink failed with rc=%#x!\n", rc));
IoDeleteDevice(pDevObj);
}
else
Log(("IoCreateDevice failed with rc=%#x!\n", rc));
if (NT_SUCCESS(rc))
rc = STATUS_INVALID_PARAMETER;
Log(("VBoxDrv::DriverEntry returning %#x\n", rc));
return rc;
}
/**
* Driver entry point.
*
* @returns appropriate status code.
* @param pDrvObj Pointer to driver object.
* @param pRegPath Registry base path.
*/
ULONG _stdcall DriverEntry(PDRIVER_OBJECT pDrvObj, PUNICODE_STRING pRegPath)
{
/*
* Create device.
* (That means creating a device object and a symbolic link so the DOS
* subsystems (OS/2, win32, ++) can access the device.)
*/
NTSTATUS rcNt = vboxdrvNtCreateDevices(pDrvObj);
if (NT_SUCCESS(rcNt))
{
int vrc = RTR0Init(0);
if (RT_SUCCESS(vrc))
{
Log(("VBoxDrv::DriverEntry\n"));
/*
* Initialize the device extension.
*/
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)g_pDevObjSys->DeviceExtension;
memset(pDevExt, 0, sizeof(*pDevExt));
vrc = supdrvInitDevExt(pDevExt, sizeof(SUPDRVSESSION));
if (!vrc)
{
/*
* Setup the driver entry points in pDrvObj.
*/
pDrvObj->DriverUnload = VBoxDrvNtUnload;
pDrvObj->MajorFunction[IRP_MJ_CREATE] = VBoxDrvNtCreate;
pDrvObj->MajorFunction[IRP_MJ_CLEANUP] = VBoxDrvNtCleanup;
pDrvObj->MajorFunction[IRP_MJ_CLOSE] = VBoxDrvNtClose;
pDrvObj->MajorFunction[IRP_MJ_DEVICE_CONTROL] = VBoxDrvNtDeviceControl;
pDrvObj->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = VBoxDrvNtInternalDeviceControl;
pDrvObj->MajorFunction[IRP_MJ_READ] = VBoxDrvNtNotSupportedStub;
pDrvObj->MajorFunction[IRP_MJ_WRITE] = VBoxDrvNtNotSupportedStub;
/* more? */
/* Register ourselves for power state changes. */
UNICODE_STRING CallbackName;
OBJECT_ATTRIBUTES Attr;
RtlInitUnicodeString(&CallbackName, L"\\Callback\\PowerState");
InitializeObjectAttributes(&Attr, &CallbackName, OBJ_CASE_INSENSITIVE, NULL, NULL);
rcNt = ExCreateCallback(&pDevExt->pObjPowerCallback, &Attr, TRUE, TRUE);
if (rcNt == STATUS_SUCCESS)
pDevExt->hPowerCallback = ExRegisterCallback(pDevExt->pObjPowerCallback, VBoxPowerDispatchCallback,
g_pDevObjSys);
Log(("VBoxDrv::DriverEntry returning STATUS_SUCCESS\n"));
return STATUS_SUCCESS;
}
Log(("supdrvInitDevExit failed with vrc=%d!\n", vrc));
rcNt = VBoxDrvNtErr2NtStatus(vrc);
RTR0Term();
}
else
{
Log(("RTR0Init failed with vrc=%d!\n", vrc));
rcNt = VBoxDrvNtErr2NtStatus(vrc);
}
vboxdrvNtDestroyDevices();
}
if (NT_SUCCESS(rcNt))
rcNt = STATUS_INVALID_PARAMETER;
return rcNt;
}
