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sys: improve support for FileStatLxInformation

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This commit is contained in:
Bill Zissimopoulos
2019-04-18 15:57:22 -07:00
parent a08fdccb17
commit 969651f5f6
4 changed files with 149 additions and 28 deletions
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56
src/sys/util.c
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@ -26,6 +26,10 @@ NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK Desir
PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
NTSTATUS FspSendQuerySecurityIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR SecurityDescriptor,
PULONG PLength);
NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
PFILE_GET_EA_INFORMATION GetEa, ULONG GetEaLength,
PFILE_FULL_EA_INFORMATION Ea, PULONG PEaLength);
@ -127,6 +131,7 @@ NTSTATUS FspIrpHookNext(PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context);
#pragma alloc_text(PAGE, FspCreateGuid)
#pragma alloc_text(PAGE, FspGetDeviceObjectPointer)
#pragma alloc_text(PAGE, FspSendSetInformationIrp)
#pragma alloc_text(PAGE, FspSendQuerySecurityIrp)
#pragma alloc_text(PAGE, FspSendQueryEaIrp)
#pragma alloc_text(PAGE, FspBufferUserBuffer)
#pragma alloc_text(PAGE, FspLockUserBuffer)
@ -317,7 +322,49 @@ NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT File
if (STATUS_PENDING == Result)
KeWaitForSingleObject(&Context.Event, Executive, KernelMode, FALSE, 0);
return NT_SUCCESS(Result) ? Context.IoStatus.Status : Result;
return Context.IoStatus.Status;
}
NTSTATUS FspSendQuerySecurityIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR SecurityDescriptor,
PULONG PLength)
{
PAGED_CODE();
NTSTATUS Result;
PIRP Irp;
PIO_STACK_LOCATION IrpSp;
FSP_SEND_IRP_CONTEXT Context;
ULONG Length = *PLength;
*PLength = 0;
if (0 == DeviceObject)
DeviceObject = IoGetRelatedDeviceObject(FileObject);
Irp = IoAllocateIrp(DeviceObject->StackSize, FALSE);
if (0 == Irp)
return STATUS_INSUFFICIENT_RESOURCES;
IrpSp = IoGetNextIrpStackLocation(Irp);
Irp->RequestorMode = KernelMode;
Irp->AssociatedIrp.SystemBuffer = SecurityDescriptor;
Irp->UserBuffer = SecurityDescriptor;
IrpSp->MajorFunction = IRP_MJ_QUERY_SECURITY;
IrpSp->FileObject = FileObject;
IrpSp->Parameters.QuerySecurity.SecurityInformation = SecurityInformation;
IrpSp->Parameters.QuerySecurity.Length = Length;
IoSetCompletionRoutine(Irp, FspSendIrpCompletion, &Context, TRUE, TRUE, TRUE);
KeInitializeEvent(&Context.Event, NotificationEvent, FALSE);
Result = IoCallDriver(DeviceObject, Irp);
if (STATUS_PENDING == Result)
KeWaitForSingleObject(&Context.Event, Executive, KernelMode, FALSE, 0);
*PLength = (ULONG)Context.IoStatus.Information;
return Context.IoStatus.Status;
}
NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
@ -358,12 +405,7 @@ NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
if (STATUS_PENDING == Result)
KeWaitForSingleObject(&Context.Event, Executive, KernelMode, FALSE, 0);
if (!NT_SUCCESS(Result))
return Result;
if (NT_SUCCESS(Context.IoStatus.Status))
*PEaLength = (ULONG)Context.IoStatus.Information;
*PEaLength = (ULONG)Context.IoStatus.Information;
return Context.IoStatus.Status;
}