[unix-history] / usr / src / sbin / routed / interface.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)interface.h	5.6 (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.
 */
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	*
d60d530a	5	* %sccs.include.redist.c%
0eb85d71	6	*
d60d530a	7	* @(#)interface.h 5.6 (Berkeley) %G%
5ff67f98	8	*/
1ead8310 SL	9
	10	/*
	11	* Routing table management daemon.
	12	*/
	13
	14	/*
	15	* An ``interface'' is similar to an ifnet structure,
	16	* except it doesn't contain q'ing info, and it also
	17	* handles ``logical'' interfaces (remote gateways
	18	* that we want to keep polling even if they go down).
	19	* The list of interfaces which we maintain is used
	20	* in supplying the gratuitous routing table updates.
	21	*/
	22	struct interface {
	23	struct interface *int_next;
	24	struct sockaddr int_addr; /* address on this host */
	25	union {
	26	struct sockaddr intu_broadaddr;
	27	struct sockaddr intu_dstaddr;
	28	} int_intu;
	29	#define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
	30	#define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
	31	int int_metric; /* init's routing entry */
	32	int int_flags; /* see below */
d002aa8c MK	33	/* START INTERNET SPECIFIC */
	34	u_long int_net; /* network # */
	35	u_long int_netmask; /* net mask for addr */
	36	u_long int_subnet; /* subnet # */
	37	u_long int_subnetmask; /* subnet mask for addr */
	38	/* END INTERNET SPECIFIC */
1ead8310 SL	39	struct ifdebug int_input, int_output; /* packet tracing stuff */
	40	int int_ipackets; /* input packets received */
	41	int int_opackets; /* output packets sent */
	42	char int_name; / from kernel if structure */
	43	u_short int_transitions; /* times gone up-down */
	44	};
	45
	46	/*
d002aa8c	47	* 0x1 to 0x10 are reused from the kernel's ifnet definitions,
2198ed48	48	* the others agree with the RTS_ flags defined elsewhere.
1ead8310 SL	49	*/
	50	#define IFF_UP 0x1 /* interface is up */
	51	#define IFF_BROADCAST 0x2 /* broadcast address valid */
	52	#define IFF_DEBUG 0x4 /* turn on debugging */
a28c0bd8	53	#define IFF_LOOPBACK 0x8 /* software loopback net */
1ead8310	54	#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
2198ed48	55
4fad5a6e	56	#define IFF_SUBNET 0x1000 /* interface on subnetted network */
2198ed48 MK	57	#define IFF_PASSIVE 0x2000 /* can't tell if up/down */
	58	#define IFF_INTERFACE 0x4000 /* hardware interface */
	59	#define IFF_REMOTE 0x8000 /* interface isn't on this machine */
1ead8310 SL	60
1ead8310 SL	61	struct interface *if_ifwithaddr();
4fad5a6e	62	struct interface *if_ifwithdstaddr();
1ead8310 SL	63	struct interface *if_ifwithnet();
1ead8310 SL	64	struct interface *if_iflookup();