Leaked source code of windows server 2003
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/*++
Copyright (c) 1998, Microsoft Corporation
Module Name:
h323if.h
Abstract:
This module contains declarations for the H.323 transparent proxy's
interface management.
Author:
Abolade Gbadegesin (aboladeg) 18-Jun-1999
Revision History:
--*/
#ifndef _NATHLP_H323IF_H_
#define _NATHLP_H323IF_H_
//
// Structure: H323_INTERFACE
//
// This structure holds operational information for an interface.
//
// Each interface is inserted into the list of H.323 transparent proxy
// interfaces, sorted by 'Index'.
//
// Synchronization on an interface makes use of an interface-list lock
// ('H323InterfaceLock'), a per-interface reference count, and a per-interface
// critical-section:
//
// Acquiring a reference to an interface guarantees the interface's existence;
// acquiring the interface's lock guarantees the interface's consistency.
//
// To acquire a reference, first acquire the interface-list lock;
// to traverse the interface-list, first acquire the interface-list lock.
//
// An interface's lock can only be acquired if
// (a) a reference to the interface has been acquired, or
// (b) the interface-list lock is currently held.
// Note that holding the list lock alone does not guarantee consistency.
//
// Fields marked read-only can be read so long as the interface is referenced.
//
typedef struct _H323_INTERFACE {
LIST_ENTRY Link;
CRITICAL_SECTION Lock;
ULONG ReferenceCount;
ULONG Index; // read-only
NET_INTERFACE_TYPE Type; // read-only
IP_H323_INTERFACE_INFO Info;
ULONG Flags;
PIP_ADAPTER_BINDING_INFO BindingInfo;
} H323_INTERFACE, *PH323_INTERFACE;
//
// Flags
//
#define H323_INTERFACE_FLAG_DELETED 0x80000000
#define H323_INTERFACE_DELETED(i) \
((i)->Flags & H323_INTERFACE_FLAG_DELETED)
#define H323_INTERFACE_FLAG_BOUND 0x40000000
#define H323_INTERFACE_BOUND(i) \
((i)->Flags & H323_INTERFACE_FLAG_BOUND)
#define H323_INTERFACE_FLAG_ENABLED 0x20000000
#define H323_INTERFACE_ENABLED(i) \
((i)->Flags & H323_INTERFACE_FLAG_ENABLED)
#define H323_INTERFACE_FLAG_CONFIGURED 0x10000000
#define H323_INTERFACE_CONFIGURED(i) \
((i)->Flags & H323_INTERFACE_FLAG_CONFIGURED)
#define H323_INTERFACE_ACTIVE(i) \
(((i)->Flags & (H323_INTERFACE_FLAG_BOUND|H323_INTERFACE_FLAG_ENABLED)) \
== (H323_INTERFACE_FLAG_BOUND|H323_INTERFACE_FLAG_ENABLED))
#define H323_INTERFACE_ADMIN_DISABLED(i) \
((i)->Flags & IP_H323_INTERFACE_FLAG_DISABLED)
//
// Synchronization
//
#define H323_REFERENCE_INTERFACE(i) \
REFERENCE_OBJECT(i, H323_INTERFACE_DELETED)
#define H323_DEREFERENCE_INTERFACE(i) \
DEREFERENCE_OBJECT(i, H323CleanupInterface)
//
// GLOBAL DATA DECLARATIONS
//
extern LIST_ENTRY H323InterfaceList;
extern CRITICAL_SECTION H323InterfaceLock;
//
// FUNCTION DECLARATIONS
//
ULONG
H323ActivateInterface(
PH323_INTERFACE Interfacep
);
ULONG
H323BindInterface(
ULONG Index,
PIP_ADAPTER_BINDING_INFO BindingInfo
);
VOID
H323CleanupInterface(
PH323_INTERFACE Interfacep
);
ULONG
H323ConfigureInterface(
ULONG Index,
PIP_H323_INTERFACE_INFO InterfaceInfo
);
ULONG
H323CreateInterface(
ULONG Index,
NET_INTERFACE_TYPE Type,
PIP_H323_INTERFACE_INFO InterfaceInfo,
PH323_INTERFACE* InterfaceCreated
);
VOID
H323DeactivateInterface(
PH323_INTERFACE Interfacep
);
ULONG
H323DeleteInterface(
ULONG Index
);
ULONG
H323DisableInterface(
ULONG Index
);
ULONG
H323EnableInterface(
ULONG Index
);
ULONG
H323InitializeInterfaceManagement(
VOID
);
PH323_INTERFACE
H323LookupInterface(
ULONG Index,
OUT PLIST_ENTRY* InsertionPoint OPTIONAL
);
ULONG
H323QueryInterface(
ULONG Index,
PVOID InterfaceInfo,
PULONG InterfaceInfoSize
);
VOID
H323ShutdownInterfaceManagement(
VOID
);
VOID
H323SignalNatInterface(
ULONG Index,
BOOLEAN Boundary
);
ULONG
H323UnbindInterface(
ULONG Index
);
#endif // _NATHLP_H323IF_H_