180 lines
6.7 KiB
C
180 lines
6.7 KiB
C
/* table.h - definitions for managing RIP internal routing table */
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/* Copyright 1984 - 2002 Wind River Systems, Inc. */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)table.h 8.1 (Berkeley) 6/5/93
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*/
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/*
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modification history
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--------------------
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01i,28apr02,rae added extern C jazz (SPR #76303)
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01h,22mar02,niq Merged from Synth view, tor3_x.synth branch, ver 01k
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01g,24jan02,niq SPR 72415 - Added support for Route tags
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01f,12oct01,rae merge from truestack ver 01h, base 01e
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01e,16mar99,spm recovered orphaned code from tor1_0_1.sens1_1 (SPR #25770)
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01d,29sep98,spm added support for IP group MIB (SPR #9374); removed unused
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entries from rt_entry structure (SPR #22535)
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01c,11sep98,spm updated contents to prevent compilation problems (SPR #22352)
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01b,24feb97,gnn Reworked the rt_entry structure.
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01a,26nov96,gnn created from BSD4.4 routed
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*/
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#ifndef __INCtableh
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#define __INCtableh
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "net/route.h"
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/*
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* Routing table management daemon.
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*/
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 1 /* tell gcc960 not to optimize alignments */
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#endif /* CPU_FAMILY==I960 */
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/*
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* Routing table structure; differs a bit from kernel tables.
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*
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* Note: the union below must agree in the first 4 members
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* so the ioctl's will work.
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*/
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struct rthash {
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struct rt_entry *rt_forw;
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struct rt_entry *rt_back;
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};
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struct rt_entry
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{
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struct rt_entry *rt_forw;
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struct rt_entry *rt_back;
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BOOL inKernel; /* Route has been added to the kernel*/
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int rt_tag; /* Route tag - for RIP v2 only */
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short rt_refcnt; /* How many additional interfaces */
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/* need this route */
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short rt_subnets_cnt;/* How many subnetted interfaces */
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/* need an "internal" classful */
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/* network route. Set only for a */
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/* classful route (internal or */
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/* otherwise) when atleast two */
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/* subnetted interfaces or one */
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/* non-subnetted and atleast one */
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/* subnetted interface exists */
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/* for the network */
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struct rtuentry
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{
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u_long rtu_hash;
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struct sockaddr rtu_dst;
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struct sockaddr rtu_router; /* Route's gateway - route supplier */
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/* for V1 or V2 with unspecified next*/
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/* hop. Set to next hop value for */
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/* V2 if specified */
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struct sockaddr rtu_netmask;
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int rtu_orgrouter; /* router from whom route was */
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/* received. For V1 will be same as */
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/* rtu_router. For V2 might be */
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/* diffrent from rtu_router */
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int rtu_flags;
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int rtu_state;
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int rtu_timer; /* Route timer */
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int rtu_metric; /* Route metric */
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int rtu_proto; /* Protocol that owns the route */
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struct interface *rtu_ifp; /* Interface through which the */
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/* gateway is reachable */
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} rtu_entry;
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};
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#if ((CPU_FAMILY==I960) && (defined __GNUC__))
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#pragma align 0 /* turn off alignment requirement */
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#endif /* CPU_FAMILY==I960 */
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#define rt_hash rtu_entry.rtu_hash /* for net or host */
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#define rt_dst rtu_entry.rtu_dst /* match value */
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#define rt_router rtu_entry.rtu_router /* who to forward to */
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#define rt_orgrouter rtu_entry.rtu_orgrouter /* who received from */
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#define rt_netmask rtu_entry.rtu_netmask /* who to forward to */
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#define rt_flags rtu_entry.rtu_flags /* kernel flags */
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#define rt_timer rtu_entry.rtu_timer /* for invalidation */
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#define rt_state rtu_entry.rtu_state /* see below */
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#define rt_metric rtu_entry.rtu_metric /* cost of route */
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#define rt_ifp rtu_entry.rtu_ifp /* interface to take */
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#define rt_proto rtu_entry.rtu_proto /* protocol that owns this */
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/* route */
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#define ROUTEHASHSIZ 32 /* must be a power of 2 */
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#define ROUTEHASHMASK (ROUTEHASHSIZ - 1)
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/*
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* "State" of routing table entry.
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*/
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#define RTS_CHANGED 0x1 /* route has been altered recently */
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#define RTS_EXTERNAL 0x2 /* extern info, not installed or sent */
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#define RTS_INTERNAL 0x4 /* internal route, not installed */
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#define RTS_PASSIVE IFF_PASSIVE /* don't time out route */
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#define RTS_INTERFACE IFF_INTERFACE /* route is for network interface */
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#define RTS_REMOTE IFF_REMOTE /* route is for ``remote'' entity */
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#define RTS_SUBNET IFF_SUBNET /* route is for network subnet */
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#define RTS_OTHER 0x1000000 /* route installed by another */
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/* protocol */
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#define RTS_PRIMARY 0x2000000 /* This is a primary route */
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/*
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* Flags are same as kernel, with this addition for af_rtflags:
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*/
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#define RTF_SUBNET 0x80000 /* pseudo: route to subnet */
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#ifndef VIRTUAL_STACK
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struct rthash nethash[ROUTEHASHSIZ];
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struct rthash hosthash[ROUTEHASHSIZ];
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#endif
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struct rt_entry *rtlookup();
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struct rt_entry *rtfind();
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IMPORT STATUS mPrivRouteEntryAdd (long, long, long, int, int, int,
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struct rtentry **);
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IMPORT STATUS mPrivRouteEntryDelete (long, long, long, int, int, int,
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struct rtentry *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCtableh */
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