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/* $NetBSD: interface.h,v 1.8 1995/06/20 22:27:52 christos Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)interface.h 8.1 (Berkeley) 6/5/93
*/
/*
* Routing table management daemon.
*/
/*
* An ``interface'' is similar to an ifnet structure,
* except it doesn't contain q'ing info, and it also
* handles ``logical'' interfaces (remote gateways
* that we want to keep polling even if they go down).
* The list of interfaces which we maintain is used
* in supplying the gratuitous routing table updates.
*/
struct interface {
struct interface *int_next;
struct sockaddr int_addr; /* address on this host */
union {
struct sockaddr intu_broadaddr;
struct sockaddr intu_dstaddr;
} int_intu;
#define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
#define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
int int_metric; /* init's routing entry */
int int_flags; /* see below */
/* START INTERNET SPECIFIC */
u_long int_net; /* network # */
u_long int_netmask; /* net mask for addr */
u_long int_subnet; /* subnet # */
u_long int_subnetmask; /* subnet mask for addr */
/* END INTERNET SPECIFIC */
struct ifdebug int_input, int_output; /* packet tracing stuff */
int int_ipackets; /* input packets received */
int int_opackets; /* output packets sent */
char *int_name; /* from kernel if structure */
u_short int_transitions; /* times gone up-down */
};
/*
* 0x1 to 0x10 are reused from the kernel's ifnet definitions,
* the others agree with the RTS_ flags defined elsewhere.
*/
#define IFF_UP 0x1 /* interface is up */
#define IFF_BROADCAST 0x2 /* broadcast address valid */
#define IFF_DEBUG 0x4 /* turn on debugging */
#define IFF_LOOPBACK 0x8 /* software loopback net */
#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
#define IFF_SUBNET 0x100000 /* interface on subnetted network */
#define IFF_PASSIVE 0x200000 /* can't tell if up/down */
#define IFF_INTERFACE 0x400000 /* hardware interface */
#define IFF_REMOTE 0x800000 /* interface isn't on this machine */
struct interface *if_ifwithaddr __P((struct sockaddr *));
struct interface *if_ifwithdstaddr __P((struct sockaddr *));
struct interface *if_ifwithnet __P((struct sockaddr *));
struct interface *if_iflookup __P((struct sockaddr *));
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