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sys: FspFsctlDeviceVolumeCreated, FspFsctlDeviceVolumeDeleted

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This commit is contained in:
Bill Zissimopoulos
2015-12-01 21:48:03 -08:00
parent 763d4666a7
commit 1312754016
4 changed files with 61 additions and 19 deletions
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43
src/sys/fsctl.c
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@ -133,7 +133,7 @@ static NTSTATUS FspFsctlCreateVolume(
return STATUS_INSUFFICIENT_RESOURCES;
RtlCopyMemory(SecurityDescriptorBuf, SecurityDescriptor, SecurityDescriptorSize);
/* create the virtual volume device */
/* prepare the device name and SDDL */
PDEVICE_OBJECT FsvrtDeviceObject;
UNICODE_STRING DeviceSddl;
UNICODE_STRING DeviceName;
@ -145,21 +145,33 @@ static NTSTATUS FspFsctlCreateVolume(
Guid.Data4[0], Guid.Data4[1], Guid.Data4[2], Guid.Data4[3],
Guid.Data4[4], Guid.Data4[5], Guid.Data4[6], Guid.Data4[7]);
ASSERT(NT_SUCCESS(Result));
Result = FspDeviceCreateSecure(FspFsvrtDeviceExtensionKind, SecurityDescriptorSize,
&DeviceName, FILE_DEVICE_VIRTUAL_DISK,
&DeviceSddl, &FspFsvrtDeviceClassGuid,
&FsvrtDeviceObject);
if (NT_SUCCESS(Result))
/* create the virtual volume device */
FSP_FSCTL_DEVICE_EXTENSION *FsctlDeviceExtension = FspFsctlDeviceExtension(DeviceObject);
ExAcquireResourceExclusiveLite(&FsctlDeviceExtension->Base.Resource, TRUE);
try
{
Result = FspDeviceCreateSecure(FspFsvrtDeviceExtensionKind, SecurityDescriptorSize,
&DeviceName, FILE_DEVICE_VIRTUAL_DISK,
&DeviceSddl, &FspFsvrtDeviceClassGuid,
&FsvrtDeviceObject);
if (NT_SUCCESS(Result))
{
#pragma prefast(suppress:28175, "We are a filesystem: ok to access SectorSize")
FsvrtDeviceObject->SectorSize = Params.SectorSize;
FsvrtDeviceExtension = FspFsvrtDeviceExtension(FsvrtDeviceObject);
FsvrtDeviceExtension->FsctlDeviceObject = DeviceObject;
FsvrtDeviceExtension->VolumeParams = Params;
RtlCopyMemory(FsvrtDeviceExtension->SecurityDescriptorBuf,
SecurityDescriptorBuf, SecurityDescriptorSize);
ClearFlag(FsvrtDeviceObject->Flags, DO_DEVICE_INITIALIZING);
Irp->IoStatus.Information = DeviceName.Length + sizeof(WCHAR);
FsvrtDeviceObject->SectorSize = Params.SectorSize;
FsvrtDeviceExtension = FspFsvrtDeviceExtension(FsvrtDeviceObject);
FsvrtDeviceExtension->FsctlDeviceObject = DeviceObject;
FsvrtDeviceExtension->VolumeParams = Params;
RtlCopyMemory(FsvrtDeviceExtension->SecurityDescriptorBuf,
SecurityDescriptorBuf, SecurityDescriptorSize);
ClearFlag(FsvrtDeviceObject->Flags, DO_DEVICE_INITIALIZING);
Irp->IoStatus.Information = DeviceName.Length + sizeof(WCHAR);
FspFsctlDeviceVolumeCreated(DeviceObject);
}
}
finally
{
ExReleaseResourceLite(&FsctlDeviceExtension->Base.Resource);
}
/* free the temporary security descriptor */
@ -292,12 +304,15 @@ static NTSTATUS FspFsvrtDeleteVolume(
#pragma prefast(pop)
/* release the file system device and virtual volume objects */
PDEVICE_OBJECT FsctlDeviceObject = FsvrtDeviceExtension->FsctlDeviceObject;
PDEVICE_OBJECT FsvolDeviceObject = FsvrtDeviceExtension->FsvolDeviceObject;
FsvrtDeviceExtension->FsvolDeviceObject = 0;
if (0 != FsvolDeviceObject)
FspDeviceRelease(FsvolDeviceObject);
FspDeviceRelease(DeviceObject);
FspFsctlDeviceVolumeDeleted(FsctlDeviceObject);
Result = STATUS_SUCCESS;
exit:;