mirror of
https://github.com/reactos/reactos.git
synced 2024-08-29 14:48:37 +00:00
691 lines
19 KiB
C
691 lines
19 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Kernel Streaming
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* FILE: drivers/ksfilter/ks/allocators.c
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* PURPOSE: KS Allocator functions
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* PROGRAMMER: Johannes Anderwald
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*/
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#include "precomp.h"
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#define NDEBUG
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#include <debug.h>
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typedef enum
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{
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ALLOCATOR_NPAGED_LOOKASIDE,
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ALLOCATOR_PAGED_LOOKASIDE,
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ALLOCATOR_CUSTOM
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}ALLOCATOR_TYPE;
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typedef enum
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{
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ALLOCATOR_DEVICE_CONTROL,
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ALLOCATOR_DEVICE_CLOSE,
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ALLOCATOR_ALLOCATE,
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ALLOCATOR_FREE
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}ALLOC_REQUEST;
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typedef PVOID (*PFNKSPAGEDPOOLALLOCATE)(IN PPAGED_LOOKASIDE_LIST Lookaside);
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typedef PVOID (*PFNKSNPAGEDPOOLALLOCATE)(IN PNPAGED_LOOKASIDE_LIST Lookaside);
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typedef VOID (*PFNKSPAGEDPOOLFREE)(IN PPAGED_LOOKASIDE_LIST Lookaside, IN PVOID Entry);
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typedef VOID (*PFNKSNPAGEDPOOLFREE)(IN PNPAGED_LOOKASIDE_LIST Lookaside, IN PVOID Entry);
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typedef VOID (NTAPI *PFNKSNPAGEDPOOLDELETE)(IN PNPAGED_LOOKASIDE_LIST Lookaside);
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typedef VOID (NTAPI *PFNKSPAGEDPOOLDELETE)(IN PPAGED_LOOKASIDE_LIST Lookaside);
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typedef struct
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{
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IKsAllocatorVtbl *lpVtbl;
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LONG ref;
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PKSIOBJECT_HEADER Header;
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ALLOCATOR_TYPE Type;
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KSSTREAMALLOCATOR_STATUS Status;
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union
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{
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NPAGED_LOOKASIDE_LIST NPagedList;
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PAGED_LOOKASIDE_LIST PagedList;
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PVOID CustomList;
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}u;
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union
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{
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PFNKSDEFAULTALLOCATE DefaultAllocate;
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PFNKSPAGEDPOOLALLOCATE PagedPool;
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PFNKSNPAGEDPOOLALLOCATE NPagedPool;
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}Allocate;
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union
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{
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PFNKSDEFAULTFREE DefaultFree;
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PFNKSPAGEDPOOLFREE PagedPool;
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PFNKSNPAGEDPOOLFREE NPagedPool;
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}Free;
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union
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{
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PFNKSDELETEALLOCATOR DefaultDelete;
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PFNKSNPAGEDPOOLDELETE NPagedPool;
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PFNKSPAGEDPOOLDELETE PagedPool;
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}Delete;
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}ALLOCATOR, *PALLOCATOR;
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/* use KSNAME_Allocator for IID_IKsAllocator */
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const GUID IID_IKsAllocator = {0x642F5D00L, 0x4791, 0x11D0, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
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const GUID KSPROPSETID_StreamAllocator = {0x0cf6e4342, 0xec87, 0x11cf, {0xa1, 0x30, 0x00, 0x20, 0xaf, 0xd1, 0x56, 0xe4}};
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NTSTATUS
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NTAPI
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IKsAllocator_Allocate(
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IN PFILE_OBJECT FileObject,
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PVOID *Frame);
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VOID
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NTAPI
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IKsAllocator_FreeFrame(
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IN PFILE_OBJECT FileObject,
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PVOID Frame);
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NTSTATUS
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NTAPI
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IKsAllocator_fnQueryInterface(
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IKsAllocator * iface,
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IN REFIID refiid,
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OUT PVOID* Output)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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if (IsEqualGUIDAligned(refiid, &IID_IUnknown) ||
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IsEqualGUIDAligned(refiid, &IID_IKsAllocator))
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{
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*Output = &This->lpVtbl;
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_InterlockedIncrement(&This->ref);
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return STATUS_SUCCESS;
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}
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return STATUS_UNSUCCESSFUL;
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}
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ULONG
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NTAPI
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IKsAllocator_fnAddRef(
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IKsAllocator * iface)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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return InterlockedIncrement(&This->ref);
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}
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ULONG
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NTAPI
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IKsAllocator_fnRelease(
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IKsAllocator * iface)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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InterlockedDecrement(&This->ref);
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if (This->ref == 0)
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{
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FreeItem(This);
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return 0;
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}
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/* Return new reference count */
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return This->ref;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_fnDeviceIoControl(
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IKsAllocator *iface,
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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PIO_STACK_LOCATION IoStack;
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PKSSTREAMALLOCATOR_FUNCTIONTABLE FunctionTable;
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PKSSTREAMALLOCATOR_STATUS State;
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PKSPROPERTY Property;
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/* FIXME locks */
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/* get current irp stack */
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IoStack = IoGetCurrentIrpStackLocation(Irp);
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if (IoStack->Parameters.DeviceIoControl.IoControlCode != IOCTL_KS_PROPERTY)
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{
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/* only KSPROPERTY requests are supported */
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UNIMPLEMENTED;
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/* complete and forget irps */
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Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_NOT_IMPLEMENTED;
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}
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if (IoStack->Parameters.DeviceIoControl.InputBufferLength < sizeof(KSPROPERTY))
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{
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/* invalid request */
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Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_INVALID_DEVICE_REQUEST;
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}
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/* check the request */
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Property = (PKSPROPERTY)IoStack->Parameters.DeviceIoControl.Type3InputBuffer;
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if (IsEqualGUIDAligned(&Property->Set, &KSPROPSETID_StreamAllocator))
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{
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if (Property->Id == KSPROPERTY_STREAMALLOCATOR_FUNCTIONTABLE)
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{
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if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(KSSTREAMALLOCATOR_FUNCTIONTABLE))
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{
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/* buffer too small */
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Irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
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Irp->IoStatus.Information = sizeof(KSSTREAMALLOCATOR_FUNCTIONTABLE);
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/* complete and forget irp */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_BUFFER_TOO_SMALL;
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}
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if (!(Property->Flags & KSPROPERTY_TYPE_GET))
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{
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/* only support retrieving the property */
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Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
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/* complete and forget irp */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_UNSUCCESSFUL;
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}
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/* get output buffer */
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FunctionTable = (PKSSTREAMALLOCATOR_FUNCTIONTABLE)Irp->UserBuffer;
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FunctionTable->AllocateFrame = IKsAllocator_Allocate;
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FunctionTable->FreeFrame = IKsAllocator_FreeFrame;
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/* save result */
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = sizeof(KSSTREAMALLOCATOR_FUNCTIONTABLE);
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/* complete request */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_SUCCESS;
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}
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else if (Property->Id == KSPROPERTY_STREAMALLOCATOR_STATUS)
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{
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if (IoStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(KSPROPERTY_STREAMALLOCATOR_STATUS))
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{
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/* buffer too small */
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Irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
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Irp->IoStatus.Information = sizeof(KSPROPERTY_STREAMALLOCATOR_STATUS);
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/* complete and forget irp */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_BUFFER_TOO_SMALL;
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}
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if (!(Property->Flags & KSPROPERTY_TYPE_GET))
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{
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/* only support retrieving the property */
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Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
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/* complete and forget irp */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_UNSUCCESSFUL;
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}
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/* get output buffer */
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State = (PKSSTREAMALLOCATOR_STATUS)Irp->UserBuffer;
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/* copy allocator status */
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RtlMoveMemory(State, &This->Status, sizeof(KSSTREAMALLOCATOR_STATUS));
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/* save result */
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = sizeof(KSSTREAMALLOCATOR_STATUS);
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/* complete request */
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_SUCCESS;
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}
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}
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/* unhandled request */
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Irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_NOT_SUPPORTED;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_fnClose(
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IKsAllocator *iface)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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/* FIXME locks */
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/* now close allocator */
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if (This->Type == ALLOCATOR_CUSTOM)
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{
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This->Delete.DefaultDelete(This->u.CustomList);
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}
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else if (This->Type == ALLOCATOR_NPAGED_LOOKASIDE)
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{
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This->Delete.NPagedPool(&This->u.NPagedList);
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}
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else if (This->Type == ALLOCATOR_PAGED_LOOKASIDE)
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{
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This->Delete.PagedPool(&This->u.PagedList);
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}
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/* free object header */
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KsFreeObjectHeader(&This->Header);
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return STATUS_SUCCESS;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_fnAllocateFrame(
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IKsAllocator *iface,
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IN PVOID * OutFrame)
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{
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PVOID Frame = NULL;
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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/* FIXME locks */
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/* now allocate frame */
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if (This->Type == ALLOCATOR_CUSTOM)
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{
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Frame = This->Allocate.DefaultAllocate(This->u.CustomList);
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}
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else if (This->Type == ALLOCATOR_NPAGED_LOOKASIDE)
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{
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Frame = This->Allocate.NPagedPool(&This->u.NPagedList);
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}
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else if (This->Type == ALLOCATOR_PAGED_LOOKASIDE)
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{
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Frame = This->Allocate.PagedPool(&This->u.PagedList);
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}
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if (Frame)
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{
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*OutFrame = Frame;
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InterlockedIncrement((PLONG)&This->Status.AllocatedFrames);
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return STATUS_SUCCESS;
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}
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return STATUS_UNSUCCESSFUL;
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}
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VOID
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NTAPI
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IKsAllocator_fnFreeFrame(
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IKsAllocator *iface,
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IN PVOID Frame)
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{
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PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
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/* now allocate frame */
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if (This->Type == ALLOCATOR_CUSTOM)
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{
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This->Free.DefaultFree(This->u.CustomList, Frame);
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}
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else if (This->Type == ALLOCATOR_NPAGED_LOOKASIDE)
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{
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This->Free.NPagedPool(&This->u.NPagedList, Frame);
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}
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else if (This->Type == ALLOCATOR_PAGED_LOOKASIDE)
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{
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This->Free.PagedPool(&This->u.PagedList, Frame);
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}
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}
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static IKsAllocatorVtbl vt_IKsAllocator =
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{
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IKsAllocator_fnQueryInterface,
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IKsAllocator_fnAddRef,
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IKsAllocator_fnRelease,
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IKsAllocator_fnDeviceIoControl,
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IKsAllocator_fnClose,
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IKsAllocator_fnAllocateFrame,
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IKsAllocator_fnFreeFrame
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};
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/*
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@implemented
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*/
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KSDDKAPI NTSTATUS NTAPI
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KsCreateAllocator(
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IN HANDLE ConnectionHandle,
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IN PKSALLOCATOR_FRAMING AllocatorFraming,
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OUT PHANDLE AllocatorHandle)
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{
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return KspCreateObjectType(ConnectionHandle,
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KSSTRING_Allocator,
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(PVOID)AllocatorFraming,
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sizeof(KSALLOCATOR_FRAMING),
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GENERIC_READ,
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AllocatorHandle);
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}
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/*
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@implemented
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*/
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KSDDKAPI NTSTATUS NTAPI
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KsCreateDefaultAllocator(
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IN PIRP Irp)
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{
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return KsCreateDefaultAllocatorEx(Irp, NULL, NULL, NULL, NULL, NULL);
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}
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/*
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@implemented
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*/
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KSDDKAPI
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NTSTATUS
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NTAPI
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KsValidateAllocatorCreateRequest(
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IN PIRP Irp,
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OUT PKSALLOCATOR_FRAMING* OutAllocatorFraming)
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{
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PKSALLOCATOR_FRAMING AllocatorFraming;
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ULONG Size;
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NTSTATUS Status;
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ULONG SupportedFlags;
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/* set minimum request size */
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Size = sizeof(KSALLOCATOR_FRAMING);
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Status = KspCopyCreateRequest(Irp,
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KSSTRING_Allocator,
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&Size,
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(PVOID*)&AllocatorFraming);
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if (!NT_SUCCESS(Status))
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return Status;
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/* allowed supported flags */
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SupportedFlags = (KSALLOCATOR_OPTIONF_COMPATIBLE | KSALLOCATOR_OPTIONF_SYSTEM_MEMORY |
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KSALLOCATOR_REQUIREMENTF_INPLACE_MODIFIER | KSALLOCATOR_REQUIREMENTF_SYSTEM_MEMORY | KSALLOCATOR_REQUIREMENTF_FRAME_INTEGRITY |
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KSALLOCATOR_REQUIREMENTF_MUST_ALLOCATE);
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if (!AllocatorFraming->FrameSize || (AllocatorFraming->OptionsFlags & (~SupportedFlags)))
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{
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FreeItem(AllocatorFraming);
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return STATUS_INVALID_PARAMETER;
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}
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/* store result */
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*OutAllocatorFraming = AllocatorFraming;
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return Status;
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}
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NTSTATUS
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IKsAllocator_DispatchRequest(
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IN PDEVICE_OBJECT DeviceObject,
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IN PFILE_OBJECT FileObject,
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IN PIRP Irp,
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IN PVOID Frame,
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IN ALLOC_REQUEST Request)
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{
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PKSIOBJECT_HEADER Header;
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NTSTATUS Status;
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IKsAllocator * Allocator;
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/* sanity check */
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ASSERT(FileObject);
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/* get object header */
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Header = (PKSIOBJECT_HEADER)FileObject->FsContext2;
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/* get real allocator */
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Status = Header->Unknown->lpVtbl->QueryInterface(Header->Unknown, &IID_IKsAllocator, (PVOID*)&Allocator);
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if (!NT_SUCCESS(Status))
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{
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/* misbehaving object */
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return STATUS_UNSUCCESSFUL;
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}
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if (Request == ALLOCATOR_DEVICE_CONTROL)
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{
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/* dispatch request allocator */
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Status = Allocator->lpVtbl->DispatchDeviceIoControl(Allocator, DeviceObject, Irp);
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}
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else if (Request == ALLOCATOR_DEVICE_CLOSE)
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{
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/* delete allocator */
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Status = Allocator->lpVtbl->Close(Allocator);
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}
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else if (Request == ALLOCATOR_ALLOCATE)
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{
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/* allocate frame */
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Status = Allocator->lpVtbl->AllocateFrame(Allocator, (PVOID*)Frame);
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}else if (Request == ALLOCATOR_FREE)
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{
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/* allocate frame */
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Allocator->lpVtbl->FreeFrame(Allocator, Frame);
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Status = STATUS_SUCCESS;
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}
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/* release interface */
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Allocator->lpVtbl->Release(Allocator);
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return Status;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_DispatchDeviceIoControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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PIO_STACK_LOCATION IoStack;
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NTSTATUS Status;
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/* get current irp stack */
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IoStack = IoGetCurrentIrpStackLocation(Irp);
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/* dispatch request */
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Status = IKsAllocator_DispatchRequest(DeviceObject, IoStack->FileObject, Irp, NULL, ALLOCATOR_DEVICE_CONTROL);
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/* complete request */
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Irp->IoStatus.Status = Status;
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return Status;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_DispatchClose(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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PIO_STACK_LOCATION IoStack;
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NTSTATUS Status;
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/* get current irp stack */
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IoStack = IoGetCurrentIrpStackLocation(Irp);
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/* dispatch request */
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Status = IKsAllocator_DispatchRequest(DeviceObject, IoStack->FileObject, Irp, NULL, ALLOCATOR_DEVICE_CLOSE);
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/* complete request */
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Irp->IoStatus.Status = Status;
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CompleteRequest(Irp, IO_NO_INCREMENT);
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return Status;
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}
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NTSTATUS
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NTAPI
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IKsAllocator_Allocate(
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IN PFILE_OBJECT FileObject,
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PVOID *Frame)
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{
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NTSTATUS Status;
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/* dispatch request */
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Status = IKsAllocator_DispatchRequest(NULL, FileObject, NULL, (PVOID)Frame, ALLOCATOR_ALLOCATE);
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return Status;
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}
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VOID
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NTAPI
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IKsAllocator_FreeFrame(
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IN PFILE_OBJECT FileObject,
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PVOID Frame)
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{
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/* dispatch request */
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IKsAllocator_DispatchRequest(NULL, FileObject, NULL, Frame, ALLOCATOR_FREE);
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}
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|
static KSDISPATCH_TABLE DispatchTable =
|
|
{
|
|
IKsAllocator_DispatchDeviceIoControl,
|
|
KsDispatchInvalidDeviceRequest,
|
|
KsDispatchInvalidDeviceRequest,
|
|
KsDispatchInvalidDeviceRequest,
|
|
IKsAllocator_DispatchClose,
|
|
KsDispatchQuerySecurity,
|
|
KsDispatchSetSecurity,
|
|
KsDispatchFastIoDeviceControlFailure,
|
|
KsDispatchFastReadFailure,
|
|
KsDispatchFastReadFailure,
|
|
};
|
|
|
|
/*
|
|
@implemented
|
|
*/
|
|
KSDDKAPI NTSTATUS NTAPI
|
|
KsCreateDefaultAllocatorEx(
|
|
IN PIRP Irp,
|
|
IN PVOID InitializeContext OPTIONAL,
|
|
IN PFNKSDEFAULTALLOCATE DefaultAllocate OPTIONAL,
|
|
IN PFNKSDEFAULTFREE DefaultFree OPTIONAL,
|
|
IN PFNKSINITIALIZEALLOCATOR InitializeAllocator OPTIONAL,
|
|
IN PFNKSDELETEALLOCATOR DeleteAllocator OPTIONAL)
|
|
{
|
|
NTSTATUS Status;
|
|
PKSALLOCATOR_FRAMING AllocatorFraming;
|
|
PALLOCATOR Allocator;
|
|
PVOID Ctx;
|
|
|
|
/* first validate connect request */
|
|
Status = KsValidateAllocatorCreateRequest(Irp, &AllocatorFraming);
|
|
if (!NT_SUCCESS(Status))
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
/* check the valid file alignment */
|
|
if (AllocatorFraming->FileAlignment > (PAGE_SIZE-1))
|
|
{
|
|
FreeItem(AllocatorFraming);
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
/* allocate allocator struct */
|
|
Allocator = AllocateItem(NonPagedPool, sizeof(ALLOCATOR));
|
|
if (!Allocator)
|
|
{
|
|
FreeItem(AllocatorFraming);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
/* allocate object header */
|
|
|
|
Status = KsAllocateObjectHeader((KSOBJECT_HEADER*)&Allocator->Header, 0, NULL, Irp, &DispatchTable);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
FreeItem(AllocatorFraming);
|
|
FreeItem(Allocator);
|
|
return Status;
|
|
}
|
|
|
|
/* set allocator type in object header */
|
|
Allocator->lpVtbl = &vt_IKsAllocator;
|
|
Allocator->Header->Unknown = (PUNKNOWN)&Allocator->lpVtbl;
|
|
Allocator->ref = 1;
|
|
|
|
if (DefaultAllocate)
|
|
{
|
|
/* use external allocator */
|
|
Allocator->Type = ALLOCATOR_CUSTOM;
|
|
Allocator->Allocate.DefaultAllocate = DefaultAllocate;
|
|
Allocator->Free.DefaultFree = DefaultFree;
|
|
Allocator->Delete.DefaultDelete = DeleteAllocator;
|
|
Ctx = InitializeAllocator(InitializeContext, AllocatorFraming, &Allocator->u.CustomList);
|
|
/* check for success */
|
|
if (!Ctx)
|
|
{
|
|
KsFreeObjectHeader(Allocator->Header);
|
|
FreeItem(Allocator);
|
|
return Status;
|
|
}
|
|
}
|
|
else if (AllocatorFraming->PoolType == NonPagedPool)
|
|
{
|
|
/* use non-paged pool allocator */
|
|
Allocator->Type = ALLOCATOR_NPAGED_LOOKASIDE;
|
|
Allocator->Allocate.NPagedPool = ExAllocateFromNPagedLookasideList;
|
|
Allocator->Free.NPagedPool = ExFreeToNPagedLookasideList;
|
|
Allocator->Delete.NPagedPool = ExDeleteNPagedLookasideList;
|
|
ExInitializeNPagedLookasideList(&Allocator->u.NPagedList, NULL, NULL, 0, AllocatorFraming->FrameSize, 0, 0);
|
|
}
|
|
else if (AllocatorFraming->PoolType == PagedPool)
|
|
{
|
|
/* use paged pool allocator */
|
|
Allocator->Allocate.PagedPool = ExAllocateFromPagedLookasideList;
|
|
Allocator->Free.PagedPool = ExFreeToPagedLookasideList;
|
|
Allocator->Delete.PagedPool = ExDeletePagedLookasideList;
|
|
Allocator->Type = ALLOCATOR_PAGED_LOOKASIDE;
|
|
ExInitializePagedLookasideList(&Allocator->u.PagedList, NULL, NULL, 0, AllocatorFraming->FrameSize, 0, 0);
|
|
|
|
}
|
|
|
|
/* backup allocator framing */
|
|
RtlMoveMemory(&Allocator->Status.Framing, AllocatorFraming, sizeof(KSALLOCATOR_FRAMING));
|
|
FreeItem(AllocatorFraming);
|
|
|
|
return Status;
|
|
}
|
|
|
|
/*
|
|
@implemented
|
|
*/
|
|
KSDDKAPI NTSTATUS NTAPI
|
|
KsValidateAllocatorFramingEx(
|
|
IN PKSALLOCATOR_FRAMING_EX Framing,
|
|
IN ULONG BufferSize,
|
|
IN const KSALLOCATOR_FRAMING_EX* PinFraming)
|
|
{
|
|
if (BufferSize < sizeof(KSALLOCATOR_FRAMING_EX))
|
|
return STATUS_INVALID_DEVICE_REQUEST;
|
|
|
|
/* verify framing */
|
|
if ((Framing->FramingItem[0].Flags & KSALLOCATOR_FLAG_PARTIAL_READ_SUPPORT) &&
|
|
Framing->OutputCompression.RatioNumerator != MAXULONG &&
|
|
Framing->OutputCompression.RatioDenominator != 0 &&
|
|
Framing->OutputCompression.RatioDenominator < Framing->OutputCompression.RatioNumerator)
|
|
{
|
|
/* framing request is ok */
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
return STATUS_INVALID_DEVICE_REQUEST;
|
|
}
|