| 1 | /*
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| 2 | * Copyright (c) 1982, 1986, 1989, 1993
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| 3 | * The Regents of the University of California. All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. All advertising materials mentioning features or use of this software
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| 14 | * must display the following acknowledgement:
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| 15 | * This product includes software developed by the University of
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| 16 | * California, Berkeley and its contributors.
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| 17 | * 4. Neither the name of the University nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | *
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| 33 | * @(#)if.h 8.1 (Berkeley) 6/10/93
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| 34 | * $Id: if.h,v 1.1.1.1 2006/05/30 06:12:41 hhzhou Exp $
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| 35 | */
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| 36 |
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| 37 | #ifndef _NET_IF_H_
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| 38 | #define _NET_IF_H_
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| 39 |
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| 40 | /*
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| 41 | * <net/if.h> does not depend on <sys/time.h> on most other systems. This
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| 42 | * helps userland compatability. (struct timeval ifi_lastchange)
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| 43 | */
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| 44 | #ifndef KERNEL
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| 45 | #include <sys/time.h>
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| 46 | #endif
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| 47 |
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| 48 | /*
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| 49 | * Structure describing information about an interface
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| 50 | * which may be of interest to management entities.
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| 51 | */
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| 52 | struct if_data {
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| 53 | /* generic interface information */
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| 54 | u_char ifi_type; /* ethernet, tokenring, etc */
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| 55 | u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
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| 56 | u_char ifi_addrlen; /* media address length */
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| 57 | u_char ifi_hdrlen; /* media header length */
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| 58 | u_char ifi_recvquota; /* polling quota for receive intrs */
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| 59 | u_char ifi_xmitquota; /* polling quota for xmit intrs */
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| 60 | u_long ifi_mtu; /* maximum transmission unit */
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| 61 | u_long ifi_metric; /* routing metric (external only) */
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| 62 | u_long ifi_baudrate; /* linespeed */
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| 63 | /* volatile statistics */
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| 64 | u_long ifi_ipackets; /* packets received on interface */
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| 65 | u_long ifi_ierrors; /* input errors on interface */
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| 66 | u_long ifi_opackets; /* packets sent on interface */
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| 67 | u_long ifi_oerrors; /* output errors on interface */
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| 68 | u_long ifi_collisions; /* collisions on csma interfaces */
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| 69 | u_long ifi_ibytes; /* total number of octets received */
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| 70 | u_long ifi_obytes; /* total number of octets sent */
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| 71 | u_long ifi_imcasts; /* packets received via multicast */
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| 72 | u_long ifi_omcasts; /* packets sent via multicast */
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| 73 | u_long ifi_iqdrops; /* dropped on input, this interface */
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| 74 | u_long ifi_noproto; /* destined for unsupported protocol */
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| 75 | u_long ifi_recvtiming; /* usec spent receiving when timing */
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| 76 | u_long ifi_xmittiming; /* usec spent xmitting when timing */
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| 77 | struct timeval ifi_lastchange; /* time of last administrative change */
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| 78 | };
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| 79 |
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| 80 | #define IFF_UP 0x1 /* interface is up */
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| 81 | #define IFF_BROADCAST 0x2 /* broadcast address valid */
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| 82 | #define IFF_DEBUG 0x4 /* turn on debugging */
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| 83 | #define IFF_LOOPBACK 0x8 /* is a loopback net */
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| 84 | #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
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| 85 | /*#define IFF_NOTRAILERS 0x20 * obsolete: avoid use of trailers */
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| 86 | #define IFF_RUNNING 0x40 /* resources allocated */
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| 87 | #define IFF_NOARP 0x80 /* no address resolution protocol */
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| 88 | #define IFF_PROMISC 0x100 /* receive all packets */
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| 89 | #define IFF_ALLMULTI 0x200 /* receive all multicast packets */
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| 90 | #define IFF_OACTIVE 0x400 /* transmission in progress */
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| 91 | #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
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| 92 | #define IFF_LINK0 0x1000 /* per link layer defined bit */
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| 93 | #define IFF_LINK1 0x2000 /* per link layer defined bit */
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| 94 | #define IFF_LINK2 0x4000 /* per link layer defined bit */
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| 95 | #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */
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| 96 | #define IFF_MULTICAST 0x8000 /* supports multicast */
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| 97 |
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| 98 | /* flags set internally only: */
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| 99 | #define IFF_CANTCHANGE \
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| 100 | (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
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| 101 | IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
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| 102 |
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| 103 | #define IFQ_MAXLEN 50
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| 104 | #define IFNET_SLOWHZ 1 /* granularity is 1 second */
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| 105 |
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| 106 | /*
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| 107 | * Message format for use in obtaining information about interfaces
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| 108 | * from getkerninfo and the routing socket
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| 109 | */
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| 110 | struct if_msghdr {
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| 111 | u_short ifm_msglen; /* to skip over non-understood messages */
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| 112 | u_char ifm_version; /* future binary compatability */
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| 113 | u_char ifm_type; /* message type */
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| 114 | int ifm_addrs; /* like rtm_addrs */
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| 115 | int ifm_flags; /* value of if_flags */
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| 116 | u_short ifm_index; /* index for associated ifp */
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| 117 | struct if_data ifm_data;/* statistics and other data about if */
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| 118 | };
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| 119 |
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| 120 | /*
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| 121 | * Message format for use in obtaining information about interface addresses
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| 122 | * from getkerninfo and the routing socket
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| 123 | */
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| 124 | struct ifa_msghdr {
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| 125 | u_short ifam_msglen; /* to skip over non-understood messages */
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| 126 | u_char ifam_version; /* future binary compatability */
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| 127 | u_char ifam_type; /* message type */
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| 128 | int ifam_addrs; /* like rtm_addrs */
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| 129 | int ifam_flags; /* value of ifa_flags */
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| 130 | u_short ifam_index; /* index for associated ifp */
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| 131 | int ifam_metric; /* value of ifa_metric */
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| 132 | };
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| 133 |
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| 134 | /*
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| 135 | * Message format for use in obtaining information about multicast addresses
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| 136 | * from the routing socket
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| 137 | */
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| 138 | struct ifma_msghdr {
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| 139 | u_short ifmam_msglen; /* to skip over non-understood messages */
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| 140 | u_char ifmam_version; /* future binary compatability */
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| 141 | u_char ifmam_type; /* message type */
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| 142 | int ifmam_addrs; /* like rtm_addrs */
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| 143 | int ifmam_flags; /* value of ifa_flags */
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| 144 | u_short ifmam_index; /* index for associated ifp */
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| 145 | };
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| 146 |
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| 147 | /*
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| 148 | * Interface request structure used for socket
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| 149 | * ioctl's. All interface ioctl's must have parameter
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| 150 | * definitions which begin with ifr_name. The
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| 151 | * remainder may be interface specific.
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| 152 | */
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| 153 | struct ifreq {
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| 154 | #define IFNAMSIZ 16
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| 155 | char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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| 156 | union {
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| 157 | struct sockaddr ifru_addr;
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| 158 | struct sockaddr ifru_dstaddr;
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| 159 | struct sockaddr ifru_broadaddr;
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| 160 | short ifru_flags;
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| 161 | int ifru_metric;
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| 162 | int ifru_mtu;
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| 163 | int ifru_phys;
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| 164 | int ifru_media;
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| 165 | caddr_t ifru_data;
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| 166 | } ifr_ifru;
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| 167 | #define ifr_addr ifr_ifru.ifru_addr /* address */
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| 168 | #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
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| 169 | #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
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| 170 | #define ifr_flags ifr_ifru.ifru_flags /* flags */
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| 171 | #define ifr_metric ifr_ifru.ifru_metric /* metric */
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| 172 | #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
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| 173 | #define ifr_phys ifr_ifru.ifru_phys /* physical wire */
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| 174 | #define ifr_media ifr_ifru.ifru_media /* physical media */
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| 175 | #define ifr_data ifr_ifru.ifru_data /* for use by interface */
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| 176 | };
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| 177 |
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| 178 | #define _SIZEOF_ADDR_IFREQ(ifr) \
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| 179 | ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
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| 180 | (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
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| 181 | (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
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| 182 |
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| 183 | struct ifaliasreq {
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| 184 | char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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| 185 | struct sockaddr ifra_addr;
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| 186 | struct sockaddr ifra_broadaddr;
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| 187 | struct sockaddr ifra_mask;
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| 188 | };
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| 189 |
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| 190 | struct ifmediareq {
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| 191 | char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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| 192 | int ifm_current; /* current media options */
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| 193 | int ifm_mask; /* don't care mask */
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| 194 | int ifm_status; /* media status */
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| 195 | int ifm_active; /* active options */
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| 196 | int ifm_count; /* # entries in ifm_ulist array */
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| 197 | int *ifm_ulist; /* media words */
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| 198 | };
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| 199 | /*
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| 200 | * Structure used in SIOCGIFCONF request.
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| 201 | * Used to retrieve interface configuration
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| 202 | * for machine (useful for programs which
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| 203 | * must know all networks accessible).
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| 204 | */
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| 205 | struct ifconf {
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| 206 | int ifc_len; /* size of associated buffer */
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| 207 | union {
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| 208 | caddr_t ifcu_buf;
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| 209 | struct ifreq *ifcu_req;
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| 210 | } ifc_ifcu;
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| 211 | #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
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| 212 | #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
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| 213 | };
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| 214 |
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| 215 | #ifdef KERNEL
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| 216 | #ifdef MALLOC_DECLARE
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| 217 | MALLOC_DECLARE(M_IFADDR);
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| 218 | MALLOC_DECLARE(M_IFMADDR);
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| 219 | #endif
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| 220 | #endif
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| 221 |
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| 222 | /* XXX - this should go away soon */
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| 223 | #ifdef KERNEL
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| 224 | #include <net/if_var.h>
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| 225 | #endif
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| 226 |
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| 227 | #endif /* !_NET_IF_H_ */
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