/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1982, 1986 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.
*/
#ifndef _NETINET_IF_ETHER_H
#define _NETINET_IF_ETHER_H
#pragma ident "%Z%%M% %I% %E% SMI"
/* if_ether.h 1.28 89/08/04 SMI; from UCB 7.2 12/7/87 */
#include <sys/ethernet.h>
/*
* The following include is for compatibility with SunOS 3.x and
* 4.3bsd. Newly written programs should include it separately.
*/
#include <net/if_arp.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Ethernet Address Resolution Protocol.
*
* See RFC 826 for protocol description. Structure below is adapted
* to resolving internet addresses. Field names used correspond to
* RFC 826.
*/
struct ether_arp {
struct arphdr ea_hdr; /* fixed-size header */
ether_addr_t arp_sha; /* sender hardware address */
uchar_t arp_spa[4]; /* sender protocol address */
ether_addr_t arp_tha; /* target hardware address */
uchar_t arp_tpa[4]; /* target protocol address */
};
#define arp_hrd ea_hdr.ar_hrd
#define arp_pro ea_hdr.ar_pro
#define arp_hln ea_hdr.ar_hln
#define arp_pln ea_hdr.ar_pln
#define arp_op ea_hdr.ar_op
/*
* multicast address structure
*
* Keep a reference count for each multicast address so
* addresses loaded into chip are unique.
*/
struct mcaddr {
struct ether_addr mc_enaddr; /* multicast address */
ushort_t mc_count; /* reference count */
};
#define MCADDRMAX 64 /* multicast addr table length */
#define MCCOUNTMAX 4096 /* multicast addr max reference count */
/*
* Structure shared between the ethernet driver modules and
* the address resolution code. For example, each ec_softc or il_softc
* begins with this structure.
*
* The structure contains a pointer to an array of multicast addresses.
* This pointer is NULL until the first successful SIOCADDMULTI ioctl
* is issued for the interface.
*/
struct arpcom {
struct ifnet ac_if; /* network-visible interface */
struct ether_addr ac_enaddr; /* ethernet hardware address */
struct in_addr ac_ipaddr; /* copy of ip address- XXX */
struct mcaddr *ac_mcaddr; /* table of multicast addrs */
ushort_t ac_nmcaddr; /* count of M/C addrs in use */
struct in_addr ac_lastip; /* cache of last ARP lookup */
struct ether_addr ac_lastarp; /* result of the last ARP */
};
/*
* Internet to ethernet address resolution table.
*/
struct arptab {
struct in_addr at_iaddr; /* internet address */
union {
struct ether_addr atu_enaddr; /* ethernet address */
long atu_tvsec; /* timestamp if incomplete */
} at_union;
uchar_t at_timer; /* minutes since last reference */
uchar_t at_flags; /* flags */
struct mbuf *at_hold; /* last packet until resolved/timeout */
};
#define at_enaddr at_union.atu_enaddr
#define at_tvsec at_union.atu_tvsec
/*
* Copy IP addresses from a to b - assumes that the two given
* pointers can be referenced as shorts. On architectures
* where this is not the case, use bcopy instead.
*/
#if defined(__sparc) || defined(__i386) || defined(__amd64)
#define ip_copy(a, b) { ((short *)b)[0] = ((short *)a)[0]; \
((short *)b)[1] = ((short *)a)[1]; }
#else
#define ip_copy(a, b) (bcopy((caddr_t)a, (caddr_t)b, 4))
#endif
#ifdef __cplusplus
}
#endif
#endif /* _NETINET_IF_ETHER_H */