* Copyright (c) 1983 The Regents of the University of California.
* 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.
* @(#)interface.h 5.4 (Berkeley) %G%
* 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.
* We list only one address for each interface, the AF_XNS one.
struct interface
*int_next
;
struct sockaddr int_addr
; /* address on this host */
struct sockaddr intu_broadaddr
;
struct sockaddr intu_dstaddr
;
#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 */
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 */
struct sameq
*n
; /* q of other pt-to-pt links */
struct sameq
*p
; /* with same net # */
* 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_ROUTE 0x8 /* routing entry installed */
#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
#define IFF_PASSIVE 0x2000 /* can't tell if up/down */
#define IFF_INTERFACE 0x4000 /* hardware interface */
#define IFF_REMOTE 0x8000 /* interface isn't on this machine */
struct interface
*if_ifwithaddr();
struct interface
*if_ifwithdstaddr();
struct interface
*if_ifwithnet();
struct interface
*if_iflookup();