99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil -*- (for GNU Emacs)
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//
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// Copyright (c) 1998-2000 Microsoft Corporation
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//
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// This file is part of the Microsoft Research IPv6 Network Protocol Stack.
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// You should have received a copy of the Microsoft End-User License Agreement
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// for this software along with this release; see the file "license.txt".
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// If not, please see http://www.research.microsoft.com/msripv6/license.htm,
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// or write to Microsoft Research, One Microsoft Way, Redmond, WA 98052-6399.
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//
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// Abstract:
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//
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// Protocol switch table for Internet Protocol Version 6.
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//
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#include "oscfg.h"
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#include "ndis.h"
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#include "ip6imp.h"
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#include "ip6def.h"
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//
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// The Protocol Switch Table is an array of handlers, one for
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// each possible value of the IPv6 Next Header field.
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//
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ProtocolSwitch ProtocolSwitchTable[MAX_IP_PROTOCOL + 1];
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//* ProtoTabInit - Initialize the Protocol Switch Table.
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//
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// Called during IPv6 initialization.
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//
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void
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ProtoTabInit(void)
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{
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//
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// Null entries will cause ICMP error messages to be sent for
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// the unknown header types.
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//
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RtlZeroMemory(ProtocolSwitchTable, sizeof(ProtocolSwitchTable));
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//
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// Define the fixed entries required by the IPv6 specification.
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// Other protocols must register with us via IPv6RegisterULProtocol.
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//
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// Note that HopByHopOptionsReceive is not here because
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// it gets special treatment in IPv6Receive.
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//
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ProtocolSwitchTable[IP_PROTOCOL_V6].DataReceive = IPv6HeaderReceive;
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ProtocolSwitchTable[IP_PROTOCOL_ICMPv6].DataReceive = ICMPv6Receive;
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ProtocolSwitchTable[IP_PROTOCOL_ICMPv6].ControlReceive =
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ICMPv6ControlReceive;
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ProtocolSwitchTable[IP_PROTOCOL_FRAGMENT].DataReceive = FragmentReceive;
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ProtocolSwitchTable[IP_PROTOCOL_FRAGMENT].ControlReceive =
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ExtHdrControlReceive;
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ProtocolSwitchTable[IP_PROTOCOL_DEST_OPTS].DataReceive =
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DestinationOptionsReceive;
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ProtocolSwitchTable[IP_PROTOCOL_DEST_OPTS].ControlReceive =
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ExtHdrControlReceive;
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ProtocolSwitchTable[IP_PROTOCOL_ROUTING].DataReceive = RoutingReceive;
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ProtocolSwitchTable[IP_PROTOCOL_ROUTING].ControlReceive =
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ExtHdrControlReceive;
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ProtocolSwitchTable[IP_PROTOCOL_AH].DataReceive =
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AuthenticationHeaderReceive;
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ProtocolSwitchTable[IP_PROTOCOL_AH].ControlReceive = ExtHdrControlReceive;
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ProtocolSwitchTable[IP_PROTOCOL_ESP].DataReceive =
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EncapsulatingSecurityPayloadReceive;
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ProtocolSwitchTable[IP_PROTOCOL_ESP].ControlReceive = ExtHdrControlReceive;
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}
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//* IPv6RegisterULProtocol - Register an upper layer protocol with IPv6.
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//
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// Higher protocols (e.g. TCP) call this to let IP know they're there.
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//
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// This routine does not check whether or not a given protocol is already
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// registered, therefore it can also be used to unregister a protocol by
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// overwriting its entry. This is considered a feature.
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//
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// REVIEW: decide exactly what this should look like.
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//
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void
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IPv6RegisterULProtocol(
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uchar Protocol, // Protocol below handlers refer to.
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ProtoRecvProc *RecvHandler, // Routine to receive incoming packets.
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ProtoControlRecvProc *CtrlHandler) // Routine to receive control packets.
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{
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ASSERT(Protocol <= MAX_IP_PROTOCOL);
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ProtocolSwitchTable[Protocol].DataReceive = RecvHandler;
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ProtocolSwitchTable[Protocol].ControlReceive = CtrlHandler;
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}
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