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 * $FreeBSD: src/sys/net/if.h,v 1.49.2.1 1999/08/29 16:28:15 peter Exp $ 35 */ 36 37 #ifndef _NET_IF_H_ 38 #define _NET_IF_H_ 39 40 /* 41 * <net/if.h> does not depend on <sys/time.h> on most other systems. This 42 * helps userland compatability. (struct timeval ifi_lastchange) 43 */ 44 #ifndef KERNEL 45 #include <pcap-stdinc.h> 46 #endif 47 48 /* 49 * Structure describing information about an interface 50 * which may be of interest to management entities. 51 */ 52 struct if_data { 53 /* generic interface information */ 54 u_char ifi_type; /* ethernet, tokenring, etc */ 55 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 56 u_char ifi_addrlen; /* media address length */ 57 u_char ifi_hdrlen; /* media header length */ 58 u_char ifi_recvquota; /* polling quota for receive intrs */ 59 u_char ifi_xmitquota; /* polling quota for xmit intrs */ 60 u_long ifi_mtu; /* maximum transmission unit */ 61 u_long ifi_metric; /* routing metric (external only) */ 62 u_long ifi_baudrate; /* linespeed */ 63 /* volatile statistics */ 64 u_long ifi_ipackets; /* packets received on interface */ 65 u_long ifi_ierrors; /* input errors on interface */ 66 u_long ifi_opackets; /* packets sent on interface */ 67 u_long ifi_oerrors; /* output errors on interface */ 68 u_long ifi_collisions; /* collisions on csma interfaces */ 69 u_long ifi_ibytes; /* total number of octets received */ 70 u_long ifi_obytes; /* total number of octets sent */ 71 u_long ifi_imcasts; /* packets received via multicast */ 72 u_long ifi_omcasts; /* packets sent via multicast */ 73 u_long ifi_iqdrops; /* dropped on input, this interface */ 74 u_long ifi_noproto; /* destined for unsupported protocol */ 75 u_long ifi_recvtiming; /* usec spent receiving when timing */ 76 u_long ifi_xmittiming; /* usec spent xmitting when timing */ 77 struct timeval ifi_lastchange; /* time of last administrative change */ 78 }; 79 80 /* ws2tcpip.h has interface flags: IFF_* */ 81 #if 0 82 #define IFF_UP 0x1 /* interface is up */ 83 #define IFF_BROADCAST 0x2 /* broadcast address valid */ 84 #define IFF_DEBUG 0x4 /* turn on debugging */ 85 #define IFF_LOOPBACK 0x8 /* is a loopback net */ 86 #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 87 /*#define IFF_NOTRAILERS 0x20 * obsolete: avoid use of trailers */ 88 #define IFF_RUNNING 0x40 /* resources allocated */ 89 #define IFF_NOARP 0x80 /* no address resolution protocol */ 90 #define IFF_PROMISC 0x100 /* receive all packets */ 91 #define IFF_ALLMULTI 0x200 /* receive all multicast packets */ 92 #define IFF_OACTIVE 0x400 /* transmission in progress */ 93 #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */ 94 #define IFF_LINK0 0x1000 /* per link layer defined bit */ 95 #define IFF_LINK1 0x2000 /* per link layer defined bit */ 96 #define IFF_LINK2 0x4000 /* per link layer defined bit */ 97 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 98 #define IFF_MULTICAST 0x8000 /* supports multicast */ 99 #endif /* 0 */ 100 101 /* flags set internally only: */ 102 #define IFF_CANTCHANGE \ 103 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\ 104 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI) 105 106 #define IFQ_MAXLEN 50 107 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ 108 109 /* 110 * Message format for use in obtaining information about interfaces 111 * from getkerninfo and the routing socket 112 */ 113 struct if_msghdr { 114 u_short ifm_msglen; /* to skip over non-understood messages */ 115 u_char ifm_version; /* future binary compatability */ 116 u_char ifm_type; /* message type */ 117 int ifm_addrs; /* like rtm_addrs */ 118 int ifm_flags; /* value of if_flags */ 119 u_short ifm_index; /* index for associated ifp */ 120 struct if_data ifm_data;/* statistics and other data about if */ 121 }; 122 123 /* 124 * Message format for use in obtaining information about interface addresses 125 * from getkerninfo and the routing socket 126 */ 127 struct ifa_msghdr { 128 u_short ifam_msglen; /* to skip over non-understood messages */ 129 u_char ifam_version; /* future binary compatability */ 130 u_char ifam_type; /* message type */ 131 int ifam_addrs; /* like rtm_addrs */ 132 int ifam_flags; /* value of ifa_flags */ 133 u_short ifam_index; /* index for associated ifp */ 134 int ifam_metric; /* value of ifa_metric */ 135 }; 136 137 /* 138 * Message format for use in obtaining information about multicast addresses 139 * from the routing socket 140 */ 141 struct ifma_msghdr { 142 u_short ifmam_msglen; /* to skip over non-understood messages */ 143 u_char ifmam_version; /* future binary compatability */ 144 u_char ifmam_type; /* message type */ 145 int ifmam_addrs; /* like rtm_addrs */ 146 int ifmam_flags; /* value of ifa_flags */ 147 u_short ifmam_index; /* index for associated ifp */ 148 }; 149 150 /* 151 * Interface request structure used for socket 152 * ioctl's. All interface ioctl's must have parameter 153 * definitions which begin with ifr_name. The 154 * remainder may be interface specific. 155 */ 156 struct ifreq { 157 #define IFNAMSIZ 16 158 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 159 union { 160 struct sockaddr ifru_addr; 161 struct sockaddr ifru_dstaddr; 162 struct sockaddr ifru_broadaddr; 163 short ifru_flags; 164 int ifru_metric; 165 int ifru_mtu; 166 int ifru_phys; 167 int ifru_media; 168 caddr_t ifru_data; 169 } ifr_ifru; 170 #define ifr_addr ifr_ifru.ifru_addr /* address */ 171 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 172 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 173 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 174 #define ifr_metric ifr_ifru.ifru_metric /* metric */ 175 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 176 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 177 #define ifr_media ifr_ifru.ifru_media /* physical media */ 178 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 179 }; 180 181 #define _SIZEOF_ADDR_IFREQ(ifr) \ 182 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \ 183 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \ 184 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq)) 185 186 struct ifaliasreq { 187 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 188 struct sockaddr ifra_addr; 189 struct sockaddr ifra_broadaddr; 190 struct sockaddr ifra_mask; 191 }; 192 193 struct ifmediareq { 194 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 195 int ifm_current; /* current media options */ 196 int ifm_mask; /* don't care mask */ 197 int ifm_status; /* media status */ 198 int ifm_active; /* active options */ 199 int ifm_count; /* # entries in ifm_ulist array */ 200 int *ifm_ulist; /* media words */ 201 }; 202 /* 203 * Structure used in SIOCGIFCONF request. 204 * Used to retrieve interface configuration 205 * for machine (useful for programs which 206 * must know all networks accessible). 207 */ 208 struct ifconf { 209 int ifc_len; /* size of associated buffer */ 210 union { 211 caddr_t ifcu_buf; 212 struct ifreq *ifcu_req; 213 } ifc_ifcu; 214 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 215 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 216 }; 217 218 #ifdef KERNEL 219 #ifdef MALLOC_DECLARE 220 MALLOC_DECLARE(M_IFADDR); 221 MALLOC_DECLARE(M_IFMADDR); 222 #endif 223 #endif 224 225 /* XXX - this should go away soon */ 226 #ifdef KERNEL 227 #include <net/if_var.h> 228 #endif 229 230 #endif /* !_NET_IF_H_ */ 231