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- /*
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 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 8.3 (Berkeley) 2/9/95
- */
-
- #ifndef _NET_IF_H
- #define _NET_IF_H
-
- /*
- * Structures defining a network interface, providing a packet
- * transport mechanism (ala level 0 of the PUP protocols).
- *
- * Each interface accepts output datagrams of a specified maximum
- * length, and provides higher level routines with input datagrams
- * received from its medium.
- *
- * Output occurs when the routine if_output is called, with three parameters:
- * (*ifp->if_output)(ifp, m, dst, rt)
- * Here m is the mbuf chain to be sent and dst is the destination address.
- * The output routine encapsulates the supplied datagram if necessary,
- * and then transmits it on its medium.
- *
- * On input, each interface unwraps the data received by it, and either
- * places it on the input queue of a internetwork datagram routine
- * and posts the associated software interrupt, or passes the datagram to a raw
- * packet input routine.
- *
- * Routines exist for locating interfaces by their addresses
- * or for locating a interface on a certain network, as well as more general
- * routing and gateway routines maintaining information used to locate
- * interfaces. These routines live in the files if.c and route.c
- */
-
- #ifndef EXEC_TYPES_H
- #include <exec/types.h>
- #endif /* EXEC_TYPES_H */
-
- #ifndef _SYS_SOCKET_H
- #include <sys/socket.h>
- #endif /* _SYS_SOCKET_H */
-
- /*
- * Structure describing information about an interface
- * which may be of interest to management entities.
- */
- /*
- * Structure defining a queue for a network interface.
- *
- * (Would like to call this struct ``if'', but C isn't PL/1.)
- */
-
- struct ifnet {
- STRPTR if_name; /* name, e.g. ``en'' or ``lo'' */
- struct ifnet *if_next; /* all struct ifnets are chained */
- struct ifaddr *if_addrlist; /* linked list of addresses per if */
- LONG if_pcount; /* number of promiscuous listeners */
- APTR if_bpf; /* packet filter structure */
- UWORD if_index; /* numeric abbreviation for this if */
- WORD if_unit; /* sub-unit for lower level driver */
- WORD if_timer; /* time 'til if_watchdog called */
- UWORD if_flags; /* up/down, broadcast, etc. */
- struct if_data {
- /* generic interface information */
- UBYTE ifi_type; /* ethernet, tokenring, etc */
- UBYTE ifi_addrlen; /* media address length */
- UBYTE ifi_hdrlen; /* media header length */
- ULONG ifi_mtu; /* maximum transmission unit */
- ULONG ifi_metric; /* routing metric (external only) */
- ULONG ifi_baudrate; /* linespeed */
- /* volatile statistics */
- ULONG ifi_ipackets; /* packets received on interface */
- ULONG ifi_ierrors; /* input errors on interface */
- ULONG ifi_opackets; /* packets sent on interface */
- ULONG ifi_oerrors; /* output errors on interface */
- ULONG ifi_collisions; /* collisions on csma interfaces */
- ULONG ifi_ibytes; /* total number of octets received */
- ULONG ifi_obytes; /* total number of octets sent */
- ULONG ifi_imcasts; /* packets received via multicast */
- ULONG ifi_omcasts; /* packets sent via multicast */
- ULONG ifi_iqdrops; /* dropped on input, this interface */
- ULONG ifi_noproto; /* destined for unsupported protocol */
- struct timeval ifi_lastchange;/* last updated */
- } if_data;
- /* procedure handles */
- APTR if_init; /* init routine */
- APTR if_output; /* output routine (enqueue) */
- APTR if_start; /* initiate output routine */
- APTR if_done; /* output complete routine */
- APTR if_ioctl; /* ioctl routine */
- APTR if_reset;
- APTR if_watchdog; /* timer routine */
- struct ifqueue {
- APTR ifq_head;
- APTR ifq_tail;
- LONG ifq_len;
- LONG ifq_maxlen;
- LONG ifq_drops;
- } if_snd; /* output queue */
- };
- #define if_mtu if_data.ifi_mtu
- #define if_type if_data.ifi_type
- #define if_addrlen if_data.ifi_addrlen
- #define if_hdrlen if_data.ifi_hdrlen
- #define if_metric if_data.ifi_metric
- #define if_baudrate if_data.ifi_baudrate
- #define if_ipackets if_data.ifi_ipackets
- #define if_ierrors if_data.ifi_ierrors
- #define if_opackets if_data.ifi_opackets
- #define if_oerrors if_data.ifi_oerrors
- #define if_collisions if_data.ifi_collisions
- #define if_ibytes if_data.ifi_ibytes
- #define if_obytes if_data.ifi_obytes
- #define if_imcasts if_data.ifi_imcasts
- #define if_omcasts if_data.ifi_omcasts
- #define if_iqdrops if_data.ifi_iqdrops
- #define if_noproto if_data.ifi_noproto
- #define if_lastchange if_data.ifi_lastchange
-
- #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_NOTRAILERS 0x20 /* avoid use of trailers */
- #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 /* transmission in progress */
- #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_MULTICAST 0x8000 /* supports multicast */
-
- /* flags set internally only: */
- #define IFF_CANTCHANGE \
- (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
- IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
-
- /*
- * The ifaddr structure contains information about one address
- * of an interface. They are maintained by the different address families,
- * are allocated and attached when an address is set, and are linked
- * together so all addresses for an interface can be located.
- */
- struct ifaddr {
- struct sockaddr *ifa_addr; /* address of interface */
- struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
- #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
- struct sockaddr *ifa_netmask; /* used to determine subnet */
- struct ifnet *ifa_ifp; /* back-pointer to interface */
- struct ifaddr *ifa_next; /* next address for interface */
- APTR ifa_rtrequest; /* check or clean routes (+ or -)'d */
- UWORD ifa_flags; /* mostly rt_flags for cloning */
- WORD ifa_refcnt; /* extra to malloc for link info */
- LONG ifa_metric; /* cost of going out this interface */
- };
- #define IFA_ROUTE RTF_UP /* route installed */
-
- /*
- * Message format for use in obtaining information about interfaces
- * from getkerninfo and the routing socket
- */
- struct if_msghdr {
- UWORD ifm_msglen; /* to skip over non-understood messages */
- UBYTE ifm_version; /* future binary compatability */
- UBYTE ifm_type; /* message type */
- LONG ifm_addrs; /* like rtm_addrs */
- LONG ifm_flags; /* value of if_flags */
- UWORD 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 {
- UWORD ifam_msglen; /* to skip over non-understood messages */
- UBYTE ifam_version; /* future binary compatability */
- UBYTE ifam_type; /* message type */
- LONG ifam_addrs; /* like rtm_addrs */
- LONG ifam_flags; /* value of ifa_flags */
- UWORD ifam_index; /* index for associated ifp */
- LONG ifam_metric; /* value of ifa_metric */
- };
-
- /*
- * 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 {
- #define IFNAMSIZ 16
- UBYTE ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
- union {
- struct sockaddr ifru_addr;
- struct sockaddr ifru_dstaddr;
- struct sockaddr ifru_broadaddr;
- WORD ifru_flags;
- LONG ifru_metric;
- APTR ifru_data;
- } 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 /* flags */
- #define ifr_metric ifr_ifru.ifru_metric /* metric */
- #define ifr_data ifr_ifru.ifru_data /* for use by interface */
- };
-
- struct ifaliasreq {
- UBYTE ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
- struct sockaddr ifra_addr;
- struct sockaddr ifra_broadaddr;
- struct sockaddr ifra_mask;
- };
-
- /*
- * Structure used in SIOCGIFCONF request.
- * Used to retrieve interface configuration
- * for machine (useful for programs which
- * must know all networks accessible).
- */
- struct ifconf {
- LONG ifc_len; /* size of associated buffer */
- union {
- APTR 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 */
- };
-
- #ifndef _NET_IF_ARP_H
- #include <net/if_arp.h>
- #endif /* _NET_IF_ARP_H */
-
- #endif /* _NET_IF_H */
-