if.h revision 21666
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1982, 1986, 1989, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 331541Srgrimes * @(#)if.h 8.1 (Berkeley) 6/10/93 3421666Swollman * $Id: if.h,v 1.42 1997/01/03 19:50:25 wollman Exp $ 351541Srgrimes */ 361541Srgrimes 372168Spaul#ifndef _NET_IF_H_ 384507Sbde#define _NET_IF_H_ 392168Spaul 401541Srgrimes/* 4119079Sfenner * Structure describing information about an interface 4219079Sfenner * which may be of interest to management entities. 4319079Sfenner */ 449457Sjoergstruct if_data { 459457Sjoerg /* generic interface information */ 469457Sjoerg u_char ifi_type; /* ethernet, tokenring, etc */ 479457Sjoerg u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 489457Sjoerg u_char ifi_addrlen; /* media address length */ 499457Sjoerg u_char ifi_hdrlen; /* media header length */ 5017352Swollman u_char ifi_recvquota; /* polling quota for receive intrs */ 5117352Swollman u_char ifi_xmitquota; /* polling quota for xmit intrs */ 529457Sjoerg u_long ifi_mtu; /* maximum transmission unit */ 539457Sjoerg u_long ifi_metric; /* routing metric (external only) */ 549457Sjoerg u_long ifi_baudrate; /* linespeed */ 559457Sjoerg /* volatile statistics */ 569457Sjoerg u_long ifi_ipackets; /* packets received on interface */ 579457Sjoerg u_long ifi_ierrors; /* input errors on interface */ 589457Sjoerg u_long ifi_opackets; /* packets sent on interface */ 599457Sjoerg u_long ifi_oerrors; /* output errors on interface */ 609457Sjoerg u_long ifi_collisions; /* collisions on csma interfaces */ 619457Sjoerg u_long ifi_ibytes; /* total number of octets received */ 629457Sjoerg u_long ifi_obytes; /* total number of octets sent */ 639457Sjoerg u_long ifi_imcasts; /* packets received via multicast */ 649457Sjoerg u_long ifi_omcasts; /* packets sent via multicast */ 659457Sjoerg u_long ifi_iqdrops; /* dropped on input, this interface */ 669457Sjoerg u_long ifi_noproto; /* destined for unsupported protocol */ 6717352Swollman u_long ifi_recvtiming; /* usec spent receiving when timing */ 6817352Swollman u_long ifi_xmittiming; /* usec spent xmitting when timing */ 6916287Sgpalmer struct timeval ifi_lastchange; /* time of last administrative change */ 709457Sjoerg}; 719457Sjoerg 721541Srgrimes#define IFF_UP 0x1 /* interface is up */ 731541Srgrimes#define IFF_BROADCAST 0x2 /* broadcast address valid */ 741541Srgrimes#define IFF_DEBUG 0x4 /* turn on debugging */ 751541Srgrimes#define IFF_LOOPBACK 0x8 /* is a loopback net */ 761541Srgrimes#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 7711460Swollman/*#define IFF_NOTRAILERS 0x20 * obsolete: avoid use of trailers */ 781541Srgrimes#define IFF_RUNNING 0x40 /* resources allocated */ 791541Srgrimes#define IFF_NOARP 0x80 /* no address resolution protocol */ 801541Srgrimes#define IFF_PROMISC 0x100 /* receive all packets */ 811541Srgrimes#define IFF_ALLMULTI 0x200 /* receive all multicast packets */ 821541Srgrimes#define IFF_OACTIVE 0x400 /* transmission in progress */ 831541Srgrimes#define IFF_SIMPLEX 0x800 /* can't hear own transmissions */ 841541Srgrimes#define IFF_LINK0 0x1000 /* per link layer defined bit */ 851541Srgrimes#define IFF_LINK1 0x2000 /* per link layer defined bit */ 861541Srgrimes#define IFF_LINK2 0x4000 /* per link layer defined bit */ 873274Swollman#define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 881541Srgrimes#define IFF_MULTICAST 0x8000 /* supports multicast */ 891541Srgrimes 901541Srgrimes/* flags set internally only: */ 911541Srgrimes#define IFF_CANTCHANGE \ 921541Srgrimes (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\ 931541Srgrimes IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI) 941541Srgrimes 951541Srgrimes#define IFQ_MAXLEN 50 961541Srgrimes#define IFNET_SLOWHZ 1 /* granularity is 1 second */ 971541Srgrimes 981541Srgrimes/* 991541Srgrimes * Message format for use in obtaining information about interfaces 1001541Srgrimes * from getkerninfo and the routing socket 1011541Srgrimes */ 1021541Srgrimesstruct if_msghdr { 1031541Srgrimes u_short ifm_msglen; /* to skip over non-understood messages */ 1041541Srgrimes u_char ifm_version; /* future binary compatability */ 1051541Srgrimes u_char ifm_type; /* message type */ 1061541Srgrimes int ifm_addrs; /* like rtm_addrs */ 1071541Srgrimes int ifm_flags; /* value of if_flags */ 1081541Srgrimes u_short ifm_index; /* index for associated ifp */ 1091541Srgrimes struct if_data ifm_data;/* statistics and other data about if */ 1101541Srgrimes}; 1111541Srgrimes 1121541Srgrimes/* 1131541Srgrimes * Message format for use in obtaining information about interface addresses 1141541Srgrimes * from getkerninfo and the routing socket 1151541Srgrimes */ 1161541Srgrimesstruct ifa_msghdr { 1171541Srgrimes u_short ifam_msglen; /* to skip over non-understood messages */ 1181541Srgrimes u_char ifam_version; /* future binary compatability */ 1191541Srgrimes u_char ifam_type; /* message type */ 1201541Srgrimes int ifam_addrs; /* like rtm_addrs */ 1211541Srgrimes int ifam_flags; /* value of ifa_flags */ 1221541Srgrimes u_short ifam_index; /* index for associated ifp */ 1231541Srgrimes int ifam_metric; /* value of ifa_metric */ 1241541Srgrimes}; 1251541Srgrimes 1261541Srgrimes/* 12721666Swollman * Message format for use in obtaining information about multicast addresses 12821666Swollman * from the routing socket 12921666Swollman */ 13021666Swollmanstruct ifma_msghdr { 13121666Swollman u_short ifmam_msglen; /* to skip over non-understood messages */ 13221666Swollman u_char ifmam_version; /* future binary compatability */ 13321666Swollman u_char ifmam_type; /* message type */ 13421666Swollman int ifmam_addrs; /* like rtm_addrs */ 13521666Swollman int ifmam_flags; /* value of ifa_flags */ 13621666Swollman u_short ifmam_index; /* index for associated ifp */ 13721666Swollman}; 13821666Swollman 13921666Swollman/* 1401541Srgrimes * Interface request structure used for socket 1411541Srgrimes * ioctl's. All interface ioctl's must have parameter 1421541Srgrimes * definitions which begin with ifr_name. The 1431541Srgrimes * remainder may be interface specific. 1441541Srgrimes */ 1451541Srgrimesstruct ifreq { 1461541Srgrimes#define IFNAMSIZ 16 1471541Srgrimes char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 1481541Srgrimes union { 1491541Srgrimes struct sockaddr ifru_addr; 1501541Srgrimes struct sockaddr ifru_dstaddr; 1511541Srgrimes struct sockaddr ifru_broadaddr; 1521541Srgrimes short ifru_flags; 1531541Srgrimes int ifru_metric; 1541941Sdg int ifru_mtu; 1555184Swollman int ifru_phys; 1561541Srgrimes caddr_t ifru_data; 1571541Srgrimes } ifr_ifru; 1581541Srgrimes#define ifr_addr ifr_ifru.ifru_addr /* address */ 1591541Srgrimes#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 1601541Srgrimes#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 1611541Srgrimes#define ifr_flags ifr_ifru.ifru_flags /* flags */ 1621541Srgrimes#define ifr_metric ifr_ifru.ifru_metric /* metric */ 1631941Sdg#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 1645187Sdg#define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 1651541Srgrimes#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 1661541Srgrimes}; 1671541Srgrimes 1681541Srgrimesstruct ifaliasreq { 1691541Srgrimes char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 1701541Srgrimes struct sockaddr ifra_addr; 1711541Srgrimes struct sockaddr ifra_broadaddr; 1721541Srgrimes struct sockaddr ifra_mask; 1731541Srgrimes}; 1741541Srgrimes 1751541Srgrimes/* 1761541Srgrimes * Structure used in SIOCGIFCONF request. 1771541Srgrimes * Used to retrieve interface configuration 1781541Srgrimes * for machine (useful for programs which 1791541Srgrimes * must know all networks accessible). 1801541Srgrimes */ 1811541Srgrimesstruct ifconf { 1821541Srgrimes int ifc_len; /* size of associated buffer */ 1831541Srgrimes union { 1841541Srgrimes caddr_t ifcu_buf; 1851541Srgrimes struct ifreq *ifcu_req; 1861541Srgrimes } ifc_ifcu; 1871541Srgrimes#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 1881541Srgrimes#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 1891541Srgrimes}; 1901541Srgrimes 19121259Swollman/* XXX - this should go away soon */ 1921541Srgrimes#ifdef KERNEL 19321259Swollman#include <net/if_var.h> 1941541Srgrimes#endif 1951541Srgrimes 1964507Sbde#endif /* !_NET_IF_H_ */ 197