[unix-history] / usr / src / sbin / routed / interface.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: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)interface.h	5.6 (Berkeley) 6/1/90
 */

/*
 * 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	0x1000		/* interface on subnetted network */
#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();
Commit	Line	Data
5ff67f98 DF	1	/*
5ff67f98 DF	2	* Copyright (c) 1983 Regents of the University of California.
0eb85d71	3	* All rights reserved.
5ff67f98	4	*
0eb85d71	5	* Redistribution and use in source and binary forms are permitted
1c15e888 C	6	* provided that: (1) source distributions retain this entire copyright
	7	* notice and comment, and (2) distributions including binaries display
	8	* the following acknowledgement: ``This product includes software
	9	* developed by the University of California, Berkeley and its contributors''
	10	* in the documentation or other materials provided with the distribution
	11	* and in all advertising materials mentioning features or use of this
	12	* software. Neither the name of the University nor the names of its
	13	* contributors may be used to endorse or promote products derived
	14	* from this software without specific prior written permission.
	15	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	16	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	17	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
0eb85d71	18	*
1c15e888	19	* @(#)interface.h 5.6 (Berkeley) 6/1/90
5ff67f98	20	*/
1ead8310 SL	21
	22	/*
	23	* Routing table management daemon.
	24	*/
	25
	26	/*
	27	* An ``interface'' is similar to an ifnet structure,
	28	* except it doesn't contain q'ing info, and it also
	29	* handles ``logical'' interfaces (remote gateways
	30	* that we want to keep polling even if they go down).
	31	* The list of interfaces which we maintain is used
	32	* in supplying the gratuitous routing table updates.
	33	*/
	34	struct interface {
	35	struct interface *int_next;
	36	struct sockaddr int_addr; /* address on this host */
	37	union {
	38	struct sockaddr intu_broadaddr;
	39	struct sockaddr intu_dstaddr;
	40	} int_intu;
	41	#define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
	42	#define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
	43	int int_metric; /* init's routing entry */
	44	int int_flags; /* see below */
d002aa8c MK	45	/* START INTERNET SPECIFIC */
	46	u_long int_net; /* network # */
	47	u_long int_netmask; /* net mask for addr */
	48	u_long int_subnet; /* subnet # */
	49	u_long int_subnetmask; /* subnet mask for addr */
	50	/* END INTERNET SPECIFIC */
1ead8310 SL	51	struct ifdebug int_input, int_output; /* packet tracing stuff */
	52	int int_ipackets; /* input packets received */
	53	int int_opackets; /* output packets sent */
	54	char int_name; / from kernel if structure */
	55	u_short int_transitions; /* times gone up-down */
	56	};
	57
	58	/*
d002aa8c	59	* 0x1 to 0x10 are reused from the kernel's ifnet definitions,
2198ed48	60	* the others agree with the RTS_ flags defined elsewhere.
1ead8310 SL	61	*/
	62	#define IFF_UP 0x1 /* interface is up */
	63	#define IFF_BROADCAST 0x2 /* broadcast address valid */
	64	#define IFF_DEBUG 0x4 /* turn on debugging */
a28c0bd8	65	#define IFF_LOOPBACK 0x8 /* software loopback net */
1ead8310	66	#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
2198ed48	67
4fad5a6e	68	#define IFF_SUBNET 0x1000 /* interface on subnetted network */
2198ed48 MK	69	#define IFF_PASSIVE 0x2000 /* can't tell if up/down */
	70	#define IFF_INTERFACE 0x4000 /* hardware interface */
	71	#define IFF_REMOTE 0x8000 /* interface isn't on this machine */
1ead8310 SL	72
1ead8310 SL	73	struct interface *if_ifwithaddr();
4fad5a6e	74	struct interface *if_ifwithdstaddr();
1ead8310 SL	75	struct interface *if_ifwithnet();
1ead8310 SL	76	struct interface *if_iflookup();