routed/af.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *      @(#)af.h        5.6 (Berkeley) 6/18/88
 */

/*
 * Routing table management daemon.
 */

/*
 * Per address family routines.
 */
struct afswitch {
        int     (*af_hash)();           /* returns keys based on address */
        int     (*af_netmatch)();       /* verifies net # matching */
        int     (*af_output)();         /* interprets address for sending */
        int     (*af_portmatch)();      /* packet from some other router? */
        int     (*af_portcheck)();      /* packet from privileged peer? */
        int     (*af_checkhost)();      /* tells if address is valid */
        int     (*af_rtflags)();        /* get flags for route (host or net) */
        int     (*af_sendroute)();      /* check bounds of subnet broadcast */
        int     (*af_canon)();          /* canonicalize address for compares */
        char    *(*af_format)();        /* convert address to string */
};

/*
 * Structure returned by af_hash routines.
 */
struct afhash {
        u_int   afh_hosthash;           /* host based hash */
        u_int   afh_nethash;            /* network based hash */
};

struct  afswitch afswitch[];            /* table proper */
int     af_max;                         /* number of entries in table */