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