[ros-diffs] 14/18: [FLTMGR] Delete unused file

[Ged Murphy]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=4d603e689ee269efecc82…

commit 4d603e689ee269efecc82e4675290dc6aac247a8
Author:     Ged Murphy <gedmurphy(a)reactos.org>
AuthorDate: Mon Oct 29 11:17:21 2018 +0000
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Mon Oct 29 23:56:39 2018 +0100

    [FLTMGR] Delete unused file
---
 drivers/filters/fltmgr/Registration.c | 252 ----------------------------------
 1 file changed, 252 deletions(-)

diff --git a/drivers/filters/fltmgr/Registration.c
b/drivers/filters/fltmgr/Registration.c
deleted file mode 100644
index 851140dc7a..0000000000
--- a/drivers/filters/fltmgr/Registration.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
-* PROJECT:         Filesystem Filter Manager
-* LICENSE:         GPL - See COPYING in the top level directory
-* FILE:            drivers/fs_minifilter/fltmgr/Registration.c
-* PURPOSE:         Handles registration of mini filters
-* PROGRAMMERS:     Ged Murphy (gedmurphy(a)reactos.org)
-*/
-
-/* INCLUDES ******************************************************************/
-
-#include "fltmgr.h"
-
-#define NDEBUG
-#include <debug.h>
-
-
-/* DATA *********************************************************************/
-
-
-NTSTATUS
-FltpStartingToDrainObject(
-    _Inout_ PFLT_OBJECT Object
-);
-
-
-/* EXPORTED FUNCTIONS ******************************************************/
-
-NTSTATUS
-NTAPI
-FltRegisterFilter(_In_ PDRIVER_OBJECT DriverObject,
-                  _In_ const FLT_REGISTRATION *Registration,
-                  _Out_ PFLT_FILTER *RetFilter)
-{
-    PFLT_OPERATION_REGISTRATION Callbacks;
-    PFLT_FILTER Filter;
-    ULONG CallbackBufferSize;
-    ULONG FilterBufferSize;
-    ULONG Count = 0;
-    PCHAR Ptr;
-    NTSTATUS Status;
-
-    Status = 0; //remove me
-
-    /* Make sure we're targeting the correct major revision */
-    if ((Registration->Version & 0xFF00) != FLT_MAJOR_VERSION)
-    {
-        return STATUS_INVALID_PARAMETER;
-    }
-
-    /* Make sure our namespace callbacks are valid */
-    if ((!Registration->GenerateFileNameCallback &&
Registration->NormalizeNameComponentCallback) ||
-        (!Registration->NormalizeNameComponentCallback &&
Registration->NormalizeContextCleanupCallback))
-    {
-        return STATUS_INVALID_PARAMETER;
-    }
-
-    /* Count the number of operations that were requested */
-    Callbacks = (PFLT_OPERATION_REGISTRATION)Registration->OperationRegistration;
-    while (Callbacks)
-    {
-        Count++;
-
-        /* Bail when we find the last one */
-        if (Callbacks->MajorFunction == IRP_MJ_OPERATION_END)
-            break;
-
-        /* Move to the next item */
-        Callbacks++;
-    }
-
-    /* Calculate the buffer sizes */
-    CallbackBufferSize = Count * sizeof(FLT_OPERATION_REGISTRATION);
-    FilterBufferSize = sizeof(FLT_FILTER) + CallbackBufferSize +
-                       DriverObject->DriverExtension->ServiceKeyName.Length;
-
-    /* Allocate a buffer to hold our filter data */
-    Filter = ExAllocatePoolWithTag(NonPagedPool,
-                                   FilterBufferSize,
-                                   FM_TAG_FILTER);
-    if (Filter == NULL) return STATUS_INSUFFICIENT_RESOURCES;
-    RtlZeroMemory(Filter, FilterBufferSize);
-
-    /* Find the end of the fixed struct */
-    Ptr = (PCHAR)(Filter + 1);
-
-    /* Store a copy of the driver object of this filter */
-    Filter->DriverObject = DriverObject;
-
-    /* Initialize the base object data */
-    Filter->Base.Flags = FLT_OBFL_TYPE_FILTER;
-    Filter->Base.PointerCount = 1;
-    FltpExInitializeRundownProtection(&Filter->Base.RundownRef);
-    FltObjectReference(&Filter->Base);
-
-    /* Set the callback addresses */
-    Filter->FilterUnload = Registration->FilterUnloadCallback;
-    Filter->InstanceSetup = Registration->InstanceSetupCallback;
-    Filter->InstanceQueryTeardown = Registration->InstanceQueryTeardownCallback;
-    Filter->InstanceTeardownStart = Registration->InstanceTeardownStartCallback;
-    Filter->InstanceTeardownComplete =
Registration->InstanceTeardownCompleteCallback;
-    Filter->GenerateFileName = Registration->GenerateFileNameCallback;
-    Filter->NormalizeNameComponent = Registration->NormalizeNameComponentCallback;
-    Filter->NormalizeContextCleanup =
Registration->NormalizeContextCleanupCallback;
-
-    /* Initialize the instance list */
-    ExInitializeResourceLite(&Filter->InstanceList.rLock);
-    InitializeListHead(&Filter->InstanceList.rList);
-    Filter->InstanceList.rCount = 0;
-
-    ExInitializeFastMutex(&Filter->ActiveOpens.mLock);
-    InitializeListHead(&Filter->ActiveOpens.mList);
-    Filter->ActiveOpens.mCount = 0;
-
-    /* Initialize the usermode port list */
-    ExInitializeFastMutex(&Filter->PortList.mLock);
-    InitializeListHead(&Filter->PortList.mList);
-    Filter->PortList.mCount = 0;
-
-    /* Check if the caller requested any context data */
-    if (Registration->ContextRegistration)
-    {
-        // register the context information
-    }
-
-    if (Registration->OperationRegistration)
-    {
-        /* The callback data comes after the fixed struct */
-        Filter->Operations = (PFLT_OPERATION_REGISTRATION)Ptr;
-        Ptr += (Count * sizeof(FLT_OPERATION_REGISTRATION));
-
-        /* Tag the operation data onto the end of the filter data */
-        RtlCopyMemory(Filter->Operations, Registration->OperationRegistration,
CallbackBufferSize);
-
-        /* walk through the requested callbacks */
-        for (Callbacks = Filter->Operations;
-             Callbacks->MajorFunction != IRP_MJ_OPERATION_END;
-             Callbacks++)
-        {
-            //
http://fsfilters.blogspot.co.uk/2011/03/how-file-system-filters-attach-to_1…
-            /* Check if this is an attach to a volume */
-            if (Callbacks->MajorFunction == IRP_MJ_VOLUME_MOUNT)
-            {
-                Filter->PreVolumeMount = Callbacks->PreOperation;
-                Filter->PostVolumeMount = Callbacks->PostOperation;
-            }
-            else if (Callbacks->MajorFunction == IRP_MJ_SHUTDOWN)
-            {
-                Callbacks->PostOperation = NULL;
-            }
-        }
-    }
-
-    /* Add the filter name buffer onto the end of the data and fill in the string */
-    Filter->Name.Length = 0;
-    Filter->Name.MaximumLength =
DriverObject->DriverExtension->ServiceKeyName.Length;
-    Filter->Name.Buffer = (PWCH)Ptr;
-    RtlCopyUnicodeString(&Filter->Name,
&DriverObject->DriverExtension->ServiceKeyName);
-
-    //
-    // - Get the altitude string
-    // - Slot the filter into the correct altitude location
-    // - More stuff??
-    //
-
-//Quit:
-    if (!NT_SUCCESS(Status))
-    {
-        // Add cleanup for context resources
-
-        ExDeleteResourceLite(&Filter->InstanceList.rLock);
-        ExFreePoolWithTag(Filter, FM_TAG_FILTER);
-    }
-
-    return Status;
-}
-
-VOID
-FLTAPI
-FltUnregisterFilter(_In_ PFLT_FILTER Filter)
-{
-    PFLT_INSTANCE Instance;
-    PLIST_ENTRY CurrentEntry;
-    NTSTATUS Status;
-
-    /* Set the draining flag */
-    Status = FltpStartingToDrainObject(&Filter->Base);
-    if (!NT_SUCCESS(Status))
-    {
-        /* Someone already unregistered us, just remove our ref and bail */
-        FltObjectDereference(&Filter->Base);
-        return;
-    }
-
-    /* Lock the instance list */
-    KeEnterCriticalRegion();
-    ExAcquireResourceSharedLite(&Filter->InstanceList.rLock, TRUE);
-
-    /* Set the first entry in the list */
-    CurrentEntry = Filter->InstanceList.rList.Flink;
-
-    /* Free all instances referenced by the filter */
-    while (CurrentEntry != &Filter->InstanceList.rList)
-    {
-        /* Get the record pointer */
-        Instance = CONTAINING_RECORD(CurrentEntry, FLT_INSTANCE, FilterLink);
-
-        // FIXME: implement
-        (void)Instance;
-
-        /* Reset the pointer and move to next entry */
-        Instance = NULL;
-        CurrentEntry = CurrentEntry->Flink;
-    }
-
-    /* We're done with instances now */
-    ExReleaseResourceLite(&Filter->InstanceList.rLock);
-    KeLeaveCriticalRegion();
-
-    /* Remove the reference from the base object */
-    FltObjectDereference(&Filter->Base);
-
-    /* Wait until we're sure nothing is using the filter */
-    FltpObjectRundownWait(&Filter->Base.RundownRef);
-
-    /* Delete the instance list lock */
-    ExDeleteResourceLite(&Filter->InstanceList.rLock);
-
-    /* We're finished cleaning up now */
-    FltpExRundownCompleted(&Filter->Base.RundownRef);
-
-    /* Hand the memory back */
-    ExFreePoolWithTag(Filter, FM_TAG_FILTER);
-}
-
-
-/* INTERNAL FUNCTIONS ******************************************************/
-
-NTSTATUS
-FltpStartingToDrainObject(_Inout_ PFLT_OBJECT Object)
-{
-    /*
-     * Set the draining flag for the filter. This let's us force
-     * a post op callback for minifilters currently awaiting one.
-     */
-    if (InterlockedOr((PLONG)&Object->Flags, FLT_OBFL_DRAINING) & 1)
-    {
-        /* We've been called once, we're already being deleted */
-        return STATUS_FLT_DELETING_OBJECT;
-    }
-
-    return STATUS_SUCCESS;
-}