1 /* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)if.h 8.1 (Berkeley) 6/10/93 34 * $Id: if.h,v 1.45 1997/02/22 09:40:58 peter Exp $ 35 */ 36 37 #ifndef _NET_IF_H_ 38 #define _NET_IF_H_ 39 40 /* 41 * Structure describing information about an interface 42 * which may be of interest to management entities. 43 */ 44 struct if_data { 45 /* generic interface information */ 46 u_char ifi_type; /* ethernet, tokenring, etc */ 47 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 48 u_char ifi_addrlen; /* media address length */ 49 u_char ifi_hdrlen; /* media header length */ 50 u_char ifi_recvquota; /* polling quota for receive intrs */ 51 u_char ifi_xmitquota; /* polling quota for xmit intrs */ 52 u_long ifi_mtu; /* maximum transmission unit */ 53 u_long ifi_metric; /* routing metric (external only) */ 54 u_long ifi_baudrate; /* linespeed */ 55 /* volatile statistics */ 56 u_long ifi_ipackets; /* packets received on interface */ 57 u_long ifi_ierrors; /* input errors on interface */ 58 u_long ifi_opackets; /* packets sent on interface */ 59 u_long ifi_oerrors; /* output errors on interface */ 60 u_long ifi_collisions; /* collisions on csma interfaces */ 61 u_long ifi_ibytes; /* total number of octets received */ 62 u_long ifi_obytes; /* total number of octets sent */ 63 u_long ifi_imcasts; /* packets received via multicast */ 64 u_long ifi_omcasts; /* packets sent via multicast */ 65 u_long ifi_iqdrops; /* dropped on input, this interface */ 66 u_long ifi_noproto; /* destined for unsupported protocol */ 67 u_long ifi_recvtiming; /* usec spent receiving when timing */ 68 u_long ifi_xmittiming; /* usec spent xmitting when timing */ 69 struct timeval ifi_lastchange; /* time of last administrative change */ 70 }; 71 72 #define IFF_UP 0x1 /* interface is up */ 73 #define IFF_BROADCAST 0x2 /* broadcast address valid */ 74 #define IFF_DEBUG 0x4 /* turn on debugging */ 75 #define IFF_LOOPBACK 0x8 /* is a loopback net */ 76 #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 77 /*#define IFF_NOTRAILERS 0x20 * obsolete: avoid use of trailers */ 78 #define IFF_RUNNING 0x40 /* resources allocated */ 79 #define IFF_NOARP 0x80 /* no address resolution protocol */ 80 #define IFF_PROMISC 0x100 /* receive all packets */ 81 #define IFF_ALLMULTI 0x200 /* receive all multicast packets */ 82 #define IFF_OACTIVE 0x400 /* transmission in progress */ 83 #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */ 84 #define IFF_LINK0 0x1000 /* per link layer defined bit */ 85 #define IFF_LINK1 0x2000 /* per link layer defined bit */ 86 #define IFF_LINK2 0x4000 /* per link layer defined bit */ 87 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 88 #define IFF_MULTICAST 0x8000 /* supports multicast */ 89 90 /* flags set internally only: */ 91 #define IFF_CANTCHANGE \ 92 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\ 93 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI) 94 95 #define IFQ_MAXLEN 50 96 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 97 98 /* 99 * Message format for use in obtaining information about interfaces 100 * from getkerninfo and the routing socket 101 */ 102 struct if_msghdr { 103 u_short ifm_msglen; /* to skip over non-understood messages */ 104 u_char ifm_version; /* future binary compatability */ 105 u_char ifm_type; /* message type */ 106 int ifm_addrs; /* like rtm_addrs */ 107 int ifm_flags; /* value of if_flags */ 108 u_short ifm_index; /* index for associated ifp */ 109 struct if_data ifm_data;/* statistics and other data about if */ 110 }; 111 112 /* 113 * Message format for use in obtaining information about interface addresses 114 * from getkerninfo and the routing socket 115 */ 116 struct ifa_msghdr { 117 u_short ifam_msglen; /* to skip over non-understood messages */ 118 u_char ifam_version; /* future binary compatability */ 119 u_char ifam_type; /* message type */ 120 int ifam_addrs; /* like rtm_addrs */ 121 int ifam_flags; /* value of ifa_flags */ 122 u_short ifam_index; /* index for associated ifp */ 123 int ifam_metric; /* value of ifa_metric */ 124 }; 125 126 /* 127 * Message format for use in obtaining information about multicast addresses 128 * from the routing socket 129 */ 130 struct ifma_msghdr { 131 u_short ifmam_msglen; /* to skip over non-understood messages */ 132 u_char ifmam_version; /* future binary compatability */ 133 u_char ifmam_type; /* message type */ 134 int ifmam_addrs; /* like rtm_addrs */ 135 int ifmam_flags; /* value of ifa_flags */ 136 u_short ifmam_index; /* index for associated ifp */ 137 }; 138 139 /* 140 * Interface request structure used for socket 141 * ioctl's. All interface ioctl's must have parameter 142 * definitions which begin with ifr_name. The 143 * remainder may be interface specific. 144 */ 145 struct ifreq { 146 #define IFNAMSIZ 16 147 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 148 union { 149 struct sockaddr ifru_addr; 150 struct sockaddr ifru_dstaddr; 151 struct sockaddr ifru_broadaddr; 152 short ifru_flags; 153 int ifru_metric; 154 int ifru_mtu; 155 int ifru_phys; 156 int ifru_media; 157 caddr_t ifru_data; 158 } ifr_ifru; 159 #define ifr_addr ifr_ifru.ifru_addr /* address */ 160 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 161 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 162 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 163 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 164 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 165 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 166 #define ifr_media ifr_ifru.ifru_media /* physical media */ 167 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 168 }; 169 170 struct ifaliasreq { 171 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 172 struct sockaddr ifra_addr; 173 struct sockaddr ifra_broadaddr; 174 struct sockaddr ifra_mask; 175 }; 176 177 struct ifmediareq { 178 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 179 int ifm_current; /* current media options */ 180 int ifm_mask; /* don't care mask */ 181 int ifm_status; /* media status */ 182 int ifm_active; /* active options */ 183 int ifm_count; /* # entries in ifm_ulist array */ 184 int *ifm_ulist; /* media words */ 185 }; 186 /* 187 * Structure used in SIOCGIFCONF request. 188 * Used to retrieve interface configuration 189 * for machine (useful for programs which 190 * must know all networks accessible). 191 */ 192 struct ifconf { 193 int ifc_len; /* size of associated buffer */ 194 union { 195 caddr_t ifcu_buf; 196 struct ifreq *ifcu_req; 197 } ifc_ifcu; 198 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 199 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 200 }; 201 202 /* XXX - this should go away soon */ 203 #ifdef KERNEL 204 #include <net/if_var.h> 205 #endif 206 207 #endif /* !_NET_IF_H_ */ 208