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sys: IRP_MJ_QUERY_INFORMATION: FileStreamInformation

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This commit is contained in:
Bill Zissimopoulos
2016-09-24 13:59:02 -07:00
parent b06e947e0e
commit 0c810c52fa
9 changed files with 447 additions and 28 deletions
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17
src/sys/device.c
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@ -295,7 +295,7 @@ static NTSTATUS FspFsvolDeviceInit(PDEVICE_OBJECT DeviceObject)
NTSTATUS Result;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
LARGE_INTEGER IrpTimeout;
LARGE_INTEGER SecurityTimeout, DirInfoTimeout;
LARGE_INTEGER SecurityTimeout, DirInfoTimeout, StreamInfoTimeout;
/*
* Volume device initialization is a mess, because of the different ways of
@ -347,6 +347,16 @@ static NTSTATUS FspFsvolDeviceInit(PDEVICE_OBJECT DeviceObject)
return Result;
FsvolDeviceExtension->InitDoneDir = 1;
/* create our stream info meta cache */
StreamInfoTimeout.QuadPart = FspTimeoutFromMillis(FsvolDeviceExtension->VolumeParams.FileInfoTimeout);
/* convert millis to nanos */
Result = FspMetaCacheCreate(
FspFsvolDeviceStreamInfoCacheCapacity, FspFsvolDeviceStreamInfoCacheItemSizeMax, &StreamInfoTimeout,
&FsvolDeviceExtension->StreamInfoCache);
if (!NT_SUCCESS(Result))
return Result;
FsvolDeviceExtension->InitDoneStrm = 1;
/* initialize the FSRTL Notify mechanism */
Result = FspNotifyInitializeSync(&FsvolDeviceExtension->NotifySync);
if (!NT_SUCCESS(Result))
@ -406,6 +416,10 @@ static VOID FspFsvolDeviceFini(PDEVICE_OBJECT DeviceObject)
FspNotifyUninitializeSync(&FsvolDeviceExtension->NotifySync);
}
/* delete the stream info meta cache */
if (FsvolDeviceExtension->InitDoneStrm)
FspMetaCacheDelete(FsvolDeviceExtension->StreamInfoCache);
/* delete the directory meta cache */
if (FsvolDeviceExtension->InitDoneDir)
FspMetaCacheDelete(FsvolDeviceExtension->DirInfoCache);
@ -484,6 +498,7 @@ static VOID FspFsvolDeviceExpirationRoutine(PVOID Context)
InterruptTime = KeQueryInterruptTime();
FspMetaCacheInvalidateExpired(FsvolDeviceExtension->SecurityCache, InterruptTime);
FspMetaCacheInvalidateExpired(FsvolDeviceExtension->DirInfoCache, InterruptTime);
FspMetaCacheInvalidateExpired(FsvolDeviceExtension->StreamInfoCache, InterruptTime);
FspIoqRemoveExpired(FsvolDeviceExtension->Ioq, InterruptTime);
KeAcquireSpinLock(&FsvolDeviceExtension->ExpirationLock, &Irql);