williamr@2: /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
williamr@2: /*	  All Rights Reserved  	*/
williamr@2: 
williamr@2: /** @file
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: 
williamr@2: /*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
williamr@2: /*	The copyright notice above does not evidence any   	*/
williamr@2: /*	actual or intended publication of such source code.	*/
williamr@2: 
williamr@2: /*
williamr@2:  *		PROPRIETARY NOTICE (Combined)
williamr@2:  *
williamr@2:  *  This source code is unpublished proprietary information
williamr@2:  *  constituting, or derived under license from AT&T's Unix(r) System V.
williamr@2:  *  In addition, portions of such source code were derived from Berkeley
williamr@2:  *  4.3 BSD under license from the Regents of the University of
williamr@2:  *  California.
williamr@2:  *
williamr@2:  *
williamr@2:  *
williamr@2:  *		Copyright Notice
williamr@2:  *
williamr@2:  *  Notice of copyright on this source code product does not indicate
williamr@2:  *  publication.
williamr@2:  *
williamr@2:  *	(c) 1986,1987,1988,1989  Sun Microsystems, Inc.
williamr@2:  *	(c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
williamr@2:  *		All rights reserved.
williamr@2:  */
williamr@2: 
williamr@2: #ifndef	_NETINET_ARP_H
williamr@2: #define	_NETINET_ARP_H
williamr@2: 
williamr@2: #ifdef	__cplusplus
williamr@2: extern "C" {
williamr@2: #endif
williamr@2: 
williamr@4: #include <sys/socket.h>
williamr@4: #include <sys/types.h>
williamr@4: #include <libc/netinet/net_types.h>
williamr@2: /**
williamr@2: Address Resolution Protocol.
williamr@2: 
williamr@2: See RFC 826 for protocol description.  ARP packets are variable
williamr@2: in size; the arphdr structure defines the fixed-length portion.
williamr@2: Protocol type values are the same as those for 10 Mb/s Ethernet.
williamr@2: It is followed by the variable-sized fields ar_sha, arp_spa,
williamr@2: arp_tha and arp_tpa in that order, according to the lengths
williamr@2: specified.  Field names used correspond to RFC 826.
williamr@2: */
williamr@2: struct	arphdr {
williamr@2: 	u_short	ar_hrd;		/* format of hardware address */
williamr@2: #define	ARPHRD_ETHER 	1	/* ethernet hardware address */
williamr@2: 	u_short	ar_pro;		/* format of protocol address */
williamr@2: 	u_char	ar_hln;		/* length of hardware address */
williamr@2: 	u_char	ar_pln;		/* length of protocol address */
williamr@2: 	u_short	ar_op;		/* one of: */
williamr@2: #define	ARPOP_REQUEST	1	/* request to resolve address */
williamr@2: #define	ARPOP_REPLY	2	/* response to previous request */
williamr@2: #define	REVARP_REQUEST	3	/* Reverse ARP request */
williamr@2: #define	REVARP_REPLY	4	/* Reverse ARP reply */
williamr@2: 	/*
williamr@2: 	 * The remaining fields are variable in size,
williamr@2: 	 * according to the sizes above, and are defined
williamr@2: 	 * as appropriate for specific hardware/protocol
williamr@2: 	 * combinations.  (E.g., see <netinet/if_ether.h>.)
williamr@2: 	 */
williamr@2: #ifdef	notdef
williamr@2: 	u_char	ar_sha[];	/* sender hardware address */
williamr@2: 	u_char	ar_spa[];	/* sender protocol address */
williamr@2: 	u_char	ar_tha[];	/* target hardware address */
williamr@2: 	u_char	ar_tpa[];	/* target protocol address */
williamr@2: #endif	/* notdef */
williamr@2: };
williamr@2: 
williamr@2: /**
williamr@2: Ethernet Address Resolution Protocol.
williamr@2: 
williamr@2: See RFC 826 for protocol description.  Structure below is adapted
williamr@2: to resolving internet addresses.  Field names used correspond to
williamr@2: RFC 826.
williamr@2: */
williamr@2: struct	ether_arp {
williamr@2: 	struct	arphdr ea_hdr;		/* fixed-size header */
williamr@2: 	struct ether_addr arp_sha;	/* sender hardware address */
williamr@2: 	u_char	arp_spa[4];		/* sender protocol address */
williamr@2: 	struct ether_addr arp_tha;	/* target hardware address */
williamr@2: 	u_char	arp_tpa[4];		/* target protocol address */
williamr@2: };
williamr@2: 
williamr@2: /**
williamr@2: ARP ioctl request
williamr@2: */
williamr@2: struct arpreq {
williamr@2: 	struct	sockaddr arp_pa;		/* protocol address */
williamr@2: 	struct	sockaddr arp_ha;		/* hardware address */
williamr@2: 	int	arp_flags;			/* flags */
williamr@2: };
williamr@4: 
williamr@2: 
williamr@2: #ifdef	__cplusplus
williamr@2: }
williamr@2: #endif
williamr@2: 
williamr@2: #endif	/* _NETINET_ARP_H */