1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1986 Regents of the University of California. 8*0Sstevel@tonic-gate * All rights reserved. The Berkeley software License Agreement 9*0Sstevel@tonic-gate * specifies the terms and conditions for redistribution. 10*0Sstevel@tonic-gate */ 11*0Sstevel@tonic-gate 12*0Sstevel@tonic-gate #ifndef _NET_IF_ARP_H 13*0Sstevel@tonic-gate #define _NET_IF_ARP_H 14*0Sstevel@tonic-gate 15*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 16*0Sstevel@tonic-gate /* if_arp.h 1.5 88/08/19 SMI; from UCB 7.1 1/24/86 */ 17*0Sstevel@tonic-gate 18*0Sstevel@tonic-gate #ifdef __cplusplus 19*0Sstevel@tonic-gate extern "C" { 20*0Sstevel@tonic-gate #endif 21*0Sstevel@tonic-gate 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Address Resolution Protocol. 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * See RFC 826 for protocol description. ARP packets are variable 26*0Sstevel@tonic-gate * in size; the arphdr structure defines the fixed-length portion. 27*0Sstevel@tonic-gate * Protocol type values are the same as those for 10 Mb/s Ethernet. 28*0Sstevel@tonic-gate * It is followed by the variable-sized fields ar_sha, arp_spa, 29*0Sstevel@tonic-gate * arp_tha and arp_tpa in that order, according to the lengths 30*0Sstevel@tonic-gate * specified. Field names used correspond to RFC 826. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate struct arphdr { 33*0Sstevel@tonic-gate ushort_t ar_hrd; /* format of hardware address */ 34*0Sstevel@tonic-gate #define ARPHRD_ETHER 1 /* ethernet hardware address */ 35*0Sstevel@tonic-gate #define ARPHRD_IB 32 /* IPoIB hardware address */ 36*0Sstevel@tonic-gate ushort_t ar_pro; /* format of protocol address */ 37*0Sstevel@tonic-gate uchar_t ar_hln; /* length of hardware address */ 38*0Sstevel@tonic-gate uchar_t ar_pln; /* length of protocol address */ 39*0Sstevel@tonic-gate ushort_t ar_op; /* one of: */ 40*0Sstevel@tonic-gate #define ARPOP_REQUEST 1 /* request to resolve address */ 41*0Sstevel@tonic-gate #define ARPOP_REPLY 2 /* response to previous request */ 42*0Sstevel@tonic-gate #define REVARP_REQUEST 3 /* Reverse ARP request */ 43*0Sstevel@tonic-gate #define REVARP_REPLY 4 /* Reverse ARP reply */ 44*0Sstevel@tonic-gate /* 45*0Sstevel@tonic-gate * The remaining fields are variable in size, 46*0Sstevel@tonic-gate * according to the sizes above, and are defined 47*0Sstevel@tonic-gate * as appropriate for specific hardware/protocol 48*0Sstevel@tonic-gate * combinations. (E.g., see <netinet/if_ether.h>.) 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate #ifdef notdef 51*0Sstevel@tonic-gate uchar_t ar_sha[]; /* sender hardware address */ 52*0Sstevel@tonic-gate uchar_t ar_spa[]; /* sender protocol address */ 53*0Sstevel@tonic-gate uchar_t ar_tha[]; /* target hardware address */ 54*0Sstevel@tonic-gate uchar_t ar_tpa[]; /* target protocol address */ 55*0Sstevel@tonic-gate #endif /* notdef */ 56*0Sstevel@tonic-gate }; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * Extended ARP ioctl request 60*0Sstevel@tonic-gate */ 61*0Sstevel@tonic-gate struct xarpreq { 62*0Sstevel@tonic-gate struct sockaddr_storage xarp_pa; /* protocol address */ 63*0Sstevel@tonic-gate struct sockaddr_dl xarp_ha; /* hardware address */ 64*0Sstevel@tonic-gate int xarp_flags; /* flags */ 65*0Sstevel@tonic-gate }; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * BSD ARP ioctl request 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate struct arpreq { 71*0Sstevel@tonic-gate struct sockaddr arp_pa; /* protocol address */ 72*0Sstevel@tonic-gate struct sockaddr arp_ha; /* hardware address */ 73*0Sstevel@tonic-gate int arp_flags; /* flags */ 74*0Sstevel@tonic-gate }; 75*0Sstevel@tonic-gate /* arp_flags and at_flags field values */ 76*0Sstevel@tonic-gate #define ATF_INUSE 0x01 /* entry in use */ 77*0Sstevel@tonic-gate #define ATF_COM 0x02 /* completed entry (enaddr valid) */ 78*0Sstevel@tonic-gate #define ATF_PERM 0x04 /* permanent entry */ 79*0Sstevel@tonic-gate #define ATF_PUBL 0x08 /* publish entry (respond for other host) */ 80*0Sstevel@tonic-gate #define ATF_USETRAILERS 0x10 /* has requested trailers */ 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate /* 83*0Sstevel@tonic-gate * This data structure is used by kernel protocol modules to register 84*0Sstevel@tonic-gate * their interest in a particular packet type with the Ethernet drivers. 85*0Sstevel@tonic-gate * For example, other kinds of ARP would use this, XNS, ApleTalk, etc. 86*0Sstevel@tonic-gate */ 87*0Sstevel@tonic-gate struct ether_family { 88*0Sstevel@tonic-gate int ef_family; /* address family */ 89*0Sstevel@tonic-gate ushort_t ef_ethertype; /* ethernet type field */ 90*0Sstevel@tonic-gate struct ifqueue *(*ef_infunc)(); /* input function */ 91*0Sstevel@tonic-gate int (*ef_outfunc)(); /* output function */ 92*0Sstevel@tonic-gate int (*ef_netisr)(); /* soft interrupt function */ 93*0Sstevel@tonic-gate struct ether_family *ef_next; /* link to next on list */ 94*0Sstevel@tonic-gate }; 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate #ifdef __cplusplus 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate #endif 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate #endif /* _NET_IF_ARP_H */ 101