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/*-
* Copyright (c) 1990,1991 Regents of The University of Michigan.
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation, and that the name of The University
* of Michigan not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. This software is supplied as is without expressed or
* implied warranties of any kind.
*
* This product includes software developed by the University of
* California, Berkeley and its contributors.
*
* Research Systems Unix Group
* The University of Michigan
* c/o Wesley Craig
* 535 W. William Street
* Ann Arbor, Michigan
* +1-313-764-2278
* netatalk@umich.edu
*
* $FreeBSD: release/9.1.0/sys/netatalk/aarp.h 171078 2007-06-28 12:54:58Z rwatson $
*/
#ifndef _NETATALK_AARP_H_
#define _NETATALK_AARP_H_
/*
* This structure is used for both phase 1 and 2. Under phase 1
* the net is not filled in. It is in phase 2. In both cases, the
* hardware address length is (for some unknown reason) 4. If
* anyone at Apple could program their way out of paper bag, it
* would be 1 and 3 respectively for phase 1 and 2.
*/
union aapa {
u_char ap_pa[4];
struct ap_node {
u_char an_zero;
u_char an_net[2];
u_char an_node;
} __packed ap_node;
};
struct ether_aarp {
struct arphdr eaa_hdr;
u_char aarp_sha[6];
union aapa aarp_spu;
u_char aarp_tha[6];
union aapa aarp_tpu;
} __packed;
#define aarp_hrd eaa_hdr.ar_hrd
#define aarp_pro eaa_hdr.ar_pro
#define aarp_hln eaa_hdr.ar_hln
#define aarp_pln eaa_hdr.ar_pln
#define aarp_op eaa_hdr.ar_op
#define aarp_spa aarp_spu.ap_node.an_node
#define aarp_tpa aarp_tpu.ap_node.an_node
#define aarp_spnet aarp_spu.ap_node.an_net
#define aarp_tpnet aarp_tpu.ap_node.an_net
#define aarp_spnode aarp_spu.ap_node.an_node
#define aarp_tpnode aarp_tpu.ap_node.an_node
struct aarptab {
struct at_addr aat_ataddr;
u_char aat_enaddr[6];
u_char aat_timer;
u_char aat_flags;
struct mbuf *aat_hold;
};
#define AARPHRD_ETHER 0x0001
#define AARPOP_REQUEST 0x01
#define AARPOP_RESPONSE 0x02
#define AARPOP_PROBE 0x03
#ifdef _KERNEL
struct aarptab *aarptnew(struct at_addr *);
#endif
#endif /* _NETATALK_AARP_H_ */