66 lines
2.8 KiB
C
66 lines
2.8 KiB
C
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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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* @(#)af.h 8.1 (Berkeley) 6/5/93
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*/
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/*
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* Routing table management daemon.
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*/
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/*
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* Per address family routines.
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*/
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struct afswitch {
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int (*af_hash)(); /* returns keys based on address */
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int (*af_netmatch)(); /* verifies net # matching */
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int (*af_output)(); /* interprets address for sending */
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int (*af_portmatch)(); /* packet from some other router? */
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int (*af_portcheck)(); /* packet from privileged peer? */
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int (*af_checkhost)(); /* tells if address is valid */
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int (*af_rtflags)(); /* get flags for route (host or net) */
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int (*af_sendroute)(); /* check bounds of subnet broadcast */
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int (*af_canon)(); /* canonicalize address for compares */
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char *(*af_format)(); /* convert address to string */
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};
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/*
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* Structure returned by af_hash routines.
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*/
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struct afhash {
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u_int afh_hosthash; /* host based hash */
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u_int afh_nethash; /* network based hash */
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};
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extern struct afswitch afswitch[]; /* table proper */
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extern int af_max; /* number of entries in table */
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