203 lines
5.1 KiB
C
203 lines
5.1 KiB
C
//============================================================================
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// Copyright (c) 1995, Microsoft Corporation
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//
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// File: if.h
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//
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// History:
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// V Raman July-11-1997 Created.
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//
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// Declarations for routines that manipulate interface entries
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//============================================================================
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#ifndef _IF_H_
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#define _IF_H_
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#include <mgm.h>
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//----------------------------------------------------------------------------
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// IF_ENTRY
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//
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// For each interface owned by a routing protocol an interface entry
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// is created in the interface table.
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//
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// dwIfIndex - Interface index
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//
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// dwNextHopAddr - Next hop IP address, used to distinguish
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// dial-in interfaces that are all connected
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// on the same RAS Server Interface.
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//
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// dwOwningProtocol - Protocol id of routing protocol that
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// owns this interface.
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//
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// dwOwningComponent - Component of protocol.
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//
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// wAddedByFlag - Flag indicating if the interface entry was
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// added by the routing protocol / IGMP / both.
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//
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// leOutIfList - list of (source, group) entries that reference
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// this interface in their outgoing interface list
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//
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// leInIfList - list of (source, group) entries that reference
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// this interface as their incoming interface
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//----------------------------------------------------------------------------
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typedef struct _IF_ENTRY
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{
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LIST_ENTRY leIfHashList;
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DWORD dwIfIndex;
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DWORD dwIfNextHopAddr;
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DWORD dwOwningProtocol;
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DWORD dwOwningComponent;
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WORD wAddedByFlag;
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LIST_ENTRY leOutIfList;
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LIST_ENTRY leInIfList;
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} IF_ENTRY, *PIF_ENTRY;
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//----------------------------------------------------------------------------
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// IF_REFERENCE_ENTRY
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//
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// Each interface maintains a list of (source, group) entries that refer
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// to this interface. Each entry in this reference list stores the
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// source, group info and a flag to determine what protocol caused this
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// reference. Protocol could be IGMP/some routing protocol or both.
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//
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// Fields descriptions are left as an exercise to the reader.
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//
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//----------------------------------------------------------------------------
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typedef struct _IF_REFERENCE_ENTRY
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{
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LIST_ENTRY leRefList;
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DWORD dwGroupAddr;
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DWORD dwGroupMask;
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DWORD dwSourceAddr;
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DWORD dwSourceMask;
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WORD wAddedByFlag;
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} IF_REFERENCE_ENTRY, *PIF_REFERENCE_ENTRY;
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DWORD
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CreateIfEntry(
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PLIST_ENTRY pleIfList,
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DWORD dwIfIndex,
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DWORD dwIfNextHopAddr,
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DWORD dwProtocolId,
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DWORD dwComponentId
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);
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VOID
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DeleteIfEntry(
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PIF_ENTRY pieEntry
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);
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PIF_ENTRY
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GetIfEntry(
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PLIST_ENTRY pleIfList,
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DWORD dwIfIndex,
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DWORD dwIfNextHopAddr
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);
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BOOL
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FindIfEntry(
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PLIST_ENTRY pleIfList,
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DWORD dwIfIndex,
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DWORD dwIfNextHopAddr,
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PIF_ENTRY * ppie
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);
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DWORD
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AddSourceToOutList(
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PLIST_ENTRY pleIfList,
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DWORD dwSourceAddr,
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DWORD dwSourceMask,
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DWORD dwGroupAddr,
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DWORD dwGroupMask,
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BOOL bIGMP
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);
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VOID
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AddSourceToRefList(
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PLIST_ENTRY pleRefList,
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DWORD dwSourceAddr,
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DWORD dwSourceMask,
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DWORD dwGroupAddr,
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DWORD dwGroupMask,
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BOOL bIGMP
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);
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VOID
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DeleteSourceFromRefList(
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PLIST_ENTRY pleIfRefList,
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DWORD dwSourceAddr,
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DWORD dwSourceMask,
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DWORD dwGroupAddr,
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DWORD dwGroupMask,
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BOOL bIGMP
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);
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BOOL
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FindRefEntry(
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PLIST_ENTRY pleRefList,
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DWORD dwSourceAddr,
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DWORD dwSourceMask,
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DWORD dwGroupAddr,
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DWORD dwGroupMask,
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PIF_REFERENCE_ENTRY * ppire
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);
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VOID
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DeleteOutInterfaceRefs(
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PPROTOCOL_ENTRY ppe,
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PIF_ENTRY pie,
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BOOL bIGMP
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);
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VOID
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DeleteInInterfaceRefs(
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PLIST_ENTRY pleRefList
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);
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DWORD
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TransferInterfaceOwnershipToIGMP(
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PPROTOCOL_ENTRY ppe,
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PIF_ENTRY pie
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);
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DWORD
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TransferInterfaceOwnershipToProtocol(
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PPROTOCOL_ENTRY ppe,
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PIF_ENTRY pie
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);
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#endif // _IF_H_
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