[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 this notice is preserved and that due credit is given
 * to the University of California at 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'' without express or implied warranty.
 *
 *	@(#)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.
 */
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 KB	5	* Redistribution and use in source and binary forms are permitted
	6	* provided that this notice is preserved and that due credit is given
	7	* to the University of California at Berkeley. The name of the University
	8	* may not be used to endorse or promote products derived from this
	9	* software without specific prior written permission. This software
	10	* is provided ``as is'' without express or implied warranty.
	11	*
	12	* @(#)interface.h 5.4 (Berkeley) %G%
5ff67f98	13	*/
1ead8310 SL	14
	15	/*
	16	* Routing table management daemon.
	17	*/
	18
	19	/*
	20	* An ``interface'' is similar to an ifnet structure,
	21	* except it doesn't contain q'ing info, and it also
	22	* handles ``logical'' interfaces (remote gateways
	23	* that we want to keep polling even if they go down).
	24	* The list of interfaces which we maintain is used
	25	* in supplying the gratuitous routing table updates.
	26	*/
	27	struct interface {
	28	struct interface *int_next;
	29	struct sockaddr int_addr; /* address on this host */
	30	union {
	31	struct sockaddr intu_broadaddr;
	32	struct sockaddr intu_dstaddr;
	33	} int_intu;
	34	#define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
	35	#define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
	36	int int_metric; /* init's routing entry */
	37	int int_flags; /* see below */
d002aa8c MK	38	/* START INTERNET SPECIFIC */
	39	u_long int_net; /* network # */
	40	u_long int_netmask; /* net mask for addr */
	41	u_long int_subnet; /* subnet # */
	42	u_long int_subnetmask; /* subnet mask for addr */
	43	/* END INTERNET SPECIFIC */
1ead8310 SL	44	struct ifdebug int_input, int_output; /* packet tracing stuff */
	45	int int_ipackets; /* input packets received */
	46	int int_opackets; /* output packets sent */
	47	char int_name; / from kernel if structure */
	48	u_short int_transitions; /* times gone up-down */
	49	};
	50
	51	/*
d002aa8c	52	* 0x1 to 0x10 are reused from the kernel's ifnet definitions,
2198ed48	53	* the others agree with the RTS_ flags defined elsewhere.
1ead8310 SL	54	*/
	55	#define IFF_UP 0x1 /* interface is up */
	56	#define IFF_BROADCAST 0x2 /* broadcast address valid */
	57	#define IFF_DEBUG 0x4 /* turn on debugging */
a28c0bd8	58	#define IFF_LOOPBACK 0x8 /* software loopback net */
1ead8310	59	#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
2198ed48	60
4fad5a6e	61	#define IFF_SUBNET 0x1000 /* interface on subnetted network */
2198ed48 MK	62	#define IFF_PASSIVE 0x2000 /* can't tell if up/down */
	63	#define IFF_INTERFACE 0x4000 /* hardware interface */
	64	#define IFF_REMOTE 0x8000 /* interface isn't on this machine */
1ead8310 SL	65
1ead8310 SL	66	struct interface *if_ifwithaddr();
4fad5a6e	67	struct interface *if_ifwithdstaddr();
1ead8310 SL	68	struct interface *if_ifwithnet();
1ead8310 SL	69	struct interface *if_iflookup();