Leaked source code of windows server 2003
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//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1999.
//
// File: F I L T D E V S . H
//
// Contents: Implements the basic datatype for a collection of filter
// devices.
//
// Notes:
//
// Author: shaunco 15 Jan 1999
//
//----------------------------------------------------------------------------
#pragma once
#include "filtdev.h"
#include "ncsetup.h"
#include "netcfg.h"
// Filter devices is a collection of pointers to CFilterDevice.
//
class CFilterDevices : public vector<CFilterDevice*>
{
friend class CRegistryBindingsContext;
private:
CNetConfigCore* m_pCore;
CComponentList m_Filters;
HDEVINFO m_hdi;
// This multi-sz is read from the registry (Control\Network\FilterClasses)
// and defines the order in which filters stack up. Each filter INF
// specifies Ndi\FilterClass which matches a string in this list. In
// the event that the string does not match any in the list, it is added
// to the top of the list. (Top was chosen arbitrarily.)
//
PWSTR m_pmszFilterClasses;
public:
// When filters are installed or removed (or we see that a filter is
// no longer active or newly active over an adapter as in the case of
// disabling the binding between the filter and an adapter) we add the
// upper bindings of the adapter to this binding set.
// These bindings will be unbound before we start the filter devices.
// This breaks the filter chain and allows NDIS to properly reconstruct
// it when the new devices are started.
// Then these bindings will be added to the set of added bindpaths in
// CModifyContext::ApplyChanges and hence will be sent BIND
// notifications. This has to happen so that the protocol(s)
// bound to the adapter get dynamically rebound after they have been
// implicitly unbound due to the filter device removal.
//
CBindingSet m_BindPathsToRebind;
private:
HRESULT
HrInsertFilterDevice (
IN CFilterDevice* pDevice);
HRESULT
HrLoadFilterDevice (
IN SP_DEVINFO_DATA* pdeid,
IN HKEY hkeyInstance,
IN PCWSTR pszFilterInfId,
OUT BOOL* pfRemove);
DWORD
MapFilterClassToOrdinal (
IN PCWSTR pszFilterClass);
CFilterDevice*
PFindFilterDeviceByAdapterAndFilter (
IN const CComponent* pAdapter,
IN const CComponent* pFilter) const;
CFilterDevice*
PFindFilterDeviceByInstanceGuid (
IN PCWSTR pszInstanceGuid) const;
public:
CFilterDevices (
IN CNetConfigCore* pCore);
~CFilterDevices ();
HRESULT
HrPrepare ();
VOID
Free ();
VOID
LoadAndRemoveFilterDevicesIfNeeded ();
VOID
InstallFilterDevicesIfNeeded ();
VOID
SortForWritingBindings ();
VOID
StartFilterDevices ();
};