/* * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)if.h 8.1 (Berkeley) 6/10/93 * $FreeBSD: src/sys/net/if.h,v 1.95 2005/02/25 19:46:41 brooks Exp $ */ /* * $Id$ */ #ifndef _NET_IF_H_ #define _NET_IF_H_ #include #if defined(__rtems__) /* * FIXME - HACK: BSD defines __BSD_VISIBLE in sys/cdefs.h * RTEMS sys/cdefs.h doesn't, so we enforce it here. */ #ifndef __BSD_VISIBLE #define __BSD_VISIBLE 1 #endif #include #endif #ifdef _KERNEL #include #endif #if __BSD_VISIBLE /* * does not depend on on most other systems. This * helps userland compatibility. (struct timeval ifi_lastchange) */ #ifndef _KERNEL #include #endif struct ifnet; struct ether_header; #endif /* * Length of interface external name, including terminating '\0'. * Note: this is the same size as a generic device's external name. */ #define IF_NAMESIZE 16 #if __BSD_VISIBLE #define IFNAMSIZ IF_NAMESIZE #define IF_MAXUNIT 0x7fff /* historical value */ #endif #if __BSD_VISIBLE /* * Structure used to query names of interface cloners. */ struct if_clonereq { int ifcr_total; /* total cloners (out) */ int ifcr_count; /* room for this many in user buffer */ char *ifcr_buffer; /* buffer for cloner names */ }; /* * Structure describing information about an interface * which may be of interest to management entities. */ struct if_data { /* generic interface information */ u_char ifi_type; /* ethernet, tokenring, etc */ u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ u_char ifi_addrlen; /* media address length */ u_char ifi_hdrlen; /* media header length */ u_char ifi_recvquota; /* polling quota for receive intrs */ u_char ifi_xmitquota; /* polling quota for xmit intrs */ u_long ifi_mtu; /* maximum transmission unit */ u_long ifi_metric; /* routing metric (external only) */ u_long ifi_baudrate; /* linespeed */ /* volatile statistics */ u_long ifi_ipackets; /* packets received on interface */ u_long ifi_ierrors; /* input errors on interface */ u_long ifi_opackets; /* packets sent on interface */ u_long ifi_oerrors; /* output errors on interface */ u_long ifi_collisions; /* collisions on csma interfaces */ u_long ifi_ibytes; /* total number of octets received */ u_long ifi_obytes; /* total number of octets sent */ u_long ifi_imcasts; /* packets received via multicast */ u_long ifi_omcasts; /* packets sent via multicast */ u_long ifi_iqdrops; /* dropped on input, this interface */ u_long ifi_noproto; /* destined for unsupported protocol */ u_long ifi_recvtiming; /* usec spent receiving when timing */ u_long ifi_xmittiming; /* usec spent xmitting when timing */ struct timeval ifi_lastchange; /* time of last administrative change */ }; #define IFF_UP 0x1 /* interface is up */ #define IFF_BROADCAST 0x2 /* broadcast address valid */ #define IFF_DEBUG 0x4 /* turn on debugging */ #define IFF_LOOPBACK 0x8 /* is a loopback net */ #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ #define IFF_SMART 0x20 /* interface manages own routes */ #define IFF_RUNNING 0x40 /* resources allocated */ #define IFF_NOARP 0x80 /* no address resolution protocol */ #define IFF_PROMISC 0x100 /* receive all packets */ #define IFF_ALLMULTI 0x200 /* receive all multicast packets */ #define IFF_OACTIVE 0x400 /* tx hardware queue is full */ #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */ #define IFF_LINK0 0x1000 /* per link layer defined bit */ #define IFF_LINK1 0x2000 /* per link layer defined bit */ #define IFF_LINK2 0x4000 /* per link layer defined bit */ #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ #define IFF_MULTICAST 0x8000 /* supports multicast */ #define IFF_POLLING 0x10000 /* Interface is in polling mode. */ #define IFF_PPROMISC 0x20000 /* user-requested promisc mode */ #define IFF_MONITOR 0x40000 /* user-requested monitor mode */ #define IFF_STATICARP 0x80000 /* static ARP */ #define IFF_NEEDSGIANT 0x100000 /* hold Giant over if_start calls */ /* flags set internally only: */ #define IFF_CANTCHANGE \ (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\ IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_SMART|IFF_PROMISC|\ IFF_POLLING) /* * Values for if_link_state. */ #define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */ #define LINK_STATE_DOWN 1 /* link is down */ #define LINK_STATE_UP 2 /* link is up */ /* * Some convenience macros used for setting ifi_baudrate. * XXX 1000 vs. 1024? --thorpej@netbsd.org */ #define IF_Kbps(x) ((x) * 1000) /* kilobits/sec. */ #define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ #define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ #define IFQ_MAXLEN 50 #define IFNET_SLOWHZ 1 /* granularity is 1 second */ /* * Message format for use in obtaining information about interfaces * from getkerninfo and the routing socket */ struct if_msghdr { u_short ifm_msglen; /* to skip over non-understood messages */ u_char ifm_version; /* future binary compatibility */ u_char ifm_type; /* message type */ int ifm_addrs; /* like rtm_addrs */ int ifm_flags; /* value of if_flags */ u_short ifm_index; /* index for associated ifp */ struct if_data ifm_data;/* statistics and other data about if */ }; /* * Message format for use in obtaining information about interface addresses * from getkerninfo and the routing socket */ struct ifa_msghdr { u_short ifam_msglen; /* to skip over non-understood messages */ u_char ifam_version; /* future binary compatibility */ u_char ifam_type; /* message type */ int ifam_addrs; /* like rtm_addrs */ int ifam_flags; /* value of ifa_flags */ u_short ifam_index; /* index for associated ifp */ int ifam_metric; /* value of ifa_metric */ }; /* forward declaration */ struct mbuf; /* * Interface request structure used for socket * ioctl's. All interface ioctl's must have parameter * definitions which begin with ifr_name. The * remainder may be interface specific. */ struct ifreq { char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; struct sockaddr ifru_broadaddr; short ifru_flags[2]; int32_t ifru_metric; int32_t ifru_mtu; int ifru_phys; int ifru_media; caddr_t ifru_data; int (*ifru_tap)(struct ifnet *, struct ether_header *, struct mbuf *); } ifr_ifru; #define ifr_addr ifr_ifru.ifru_addr /* address */ #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ #define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */ #define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */ #define ifr_metric ifr_ifru.ifru_metric /* metric */ #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ #define ifr_phys ifr_ifru.ifru_phys /* physical wire */ #define ifr_media ifr_ifru.ifru_media /* physical media */ #define ifr_data ifr_ifru.ifru_data /* for use by interface */ #define ifr_tap ifr_ifru.ifru_tap /* tap function */ }; struct ifaliasreq { char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ struct sockaddr ifra_addr; struct sockaddr ifra_broadaddr; struct sockaddr ifra_mask; }; struct ifmediareq { char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ int ifm_current; /* current media options */ int ifm_mask; /* don't care mask */ int ifm_status; /* media status */ int ifm_active; /* active options */ int ifm_count; /* # entries in ifm_ulist array */ int *ifm_ulist; /* media words */ }; /* * Structure used to retrieve aux status data from interfaces. * Kernel suppliers to this interface should respect the formatting * needed by ifconfig(8): each line starts with a TAB and ends with * a newline. The canonical example to copy and paste is in if_tun.c. */ #define IFSTATMAX 800 /* 10 lines of text */ struct ifstat { char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ char ascii[IFSTATMAX + 1]; }; /* * Structure used in SIOCGIFCONF request. * Used to retrieve interface configuration * for machine (useful for programs which * must know all networks accessible). */ struct ifconf { int ifc_len; /* size of associated buffer */ union { caddr_t ifcu_buf; struct ifreq *ifcu_req; } ifc_ifcu; #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ }; #endif /* __BSD_VISIBLE */ #ifdef _KERNEL /* XXX - this should go away soon. */ #include void ifafree(struct ifaddr *); int looutput(struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *); #endif #endif /* !_NET_IF_H_ */