FreeBSD/Linux Kernel Cross Reference
sys/bsd/net/if.h

     /*
      * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_LICENSE_HEADER_START@
      * 
      * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
      * 
      * This file contains Original Code and/or Modifications of Original Code
      * as defined in and that are subject to the Apple Public Source License
     * Version 2.0 (the 'License'). You may not use this file except in
     * compliance with the License. Please obtain a copy of the License at
     * http://www.opensource.apple.com/apsl/ and read it before using this
     * file.
     * 
     * The Original Code and all software distributed under the License are
     * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
     * Please see the License for the specific language governing rights and
     * limitations under the License.
     * 
     * @APPLE_LICENSE_HEADER_END@
     */
    /*
     * 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        8.1 (Berkeley) 6/10/93
     * $FreeBSD: src/sys/net/if.h,v 1.58.2.2 2001/07/24 19:10:18 brooks Exp $
     */
    
    #ifndef _NET_IF_H_
    #define _NET_IF_H_
    #include <sys/appleapiopts.h>
    
    #ifdef __APPLE__
    /*
     * Define Data-Link event subclass, and associated
     * events.
     */
    
    #define KEV_DL_SUBCLASS 2
    
    #define KEV_DL_SIFFLAGS     1
    #define KEV_DL_SIFMETRICS   2
    #define KEV_DL_SIFMTU       3
    #define KEV_DL_SIFPHYS      4
    #define KEV_DL_SIFMEDIA     5
    #define KEV_DL_SIFGENERIC   6
    #define KEV_DL_ADDMULTI     7
    #define KEV_DL_DELMULTI     8
    #define KEV_DL_IF_ATTACHED  9
    #define KEV_DL_IF_DETACHING 10
    #define KEV_DL_IF_DETACHED  11
    #define KEV_DL_LINK_OFF     12
    #define KEV_DL_LINK_ON      13
    #define KEV_DL_PROTO_ATTACHED   14
    #define KEV_DL_PROTO_DETACHED   15
    #endif
    
    /*
     * <net/if.h> does not depend on <sys/time.h> on most other systems.  This
     * helps userland compatability.  (struct timeval ifi_lastchange)
     */
    #include <sys/time.h>
    
    #ifdef __APPLE__
    #include <net/if_var.h>
    #endif
    
   
   #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             /* obsolete: 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_ALTPHYS     IFF_LINK2       /* use alternate physical connection */
   #define IFF_MULTICAST   0x8000          /* supports multicast */
   
   #if KERNEL_PRIVATE
   /* extended flags definitions:  (all bits are reserved for internal/future use) */
   #define IFEF_AUTOCONFIGURING    0x1
   #define IFEF_DVR_REENTRY_OK     0x20    /* When set, driver may be reentered from its own thread */
   #define IFEF_ACCEPT_RTADVD      0x40    /* set to accept IPv6 router advertisement on the interface */
   #define IFEF_INUSE      0x40000000 /* DLIL ifnet recycler, ifnet in use */
   #define IFEF_REUSE      0x20000000 /* DLIL ifnet recycler, ifnet is not new */
   #endif /* KERNEL_PRIVATE */
   
   
   /* flags set internally only: */
   #define IFF_CANTCHANGE \
           (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
               IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
   
   #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 compatability */
           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 compatability */
           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 */
   };
   
   /*
    * Message format for use in obtaining information about multicast addresses
    * from the routing socket
    */
   struct ifma_msghdr {
           u_short ifmam_msglen;   /* to skip over non-understood messages */
           u_char  ifmam_version;  /* future binary compatability */
           u_char  ifmam_type;     /* message type */
           int     ifmam_addrs;    /* like rtm_addrs */
           int     ifmam_flags;    /* value of ifa_flags */
           u_short ifmam_index;    /* index for associated ifp */
   };
   
   /*
    * 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.
    */
   #define IF_NAMESIZE     IFNAMSIZ
   struct  ifreq {
   #define IFNAMSIZ        16
           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;
                   int     ifru_metric;
                   int     ifru_mtu;
                   int     ifru_phys;
                   int     ifru_media;
                   caddr_t 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 */
   #ifdef __APPLE__
   #define ifr_flags       ifr_ifru.ifru_flags     /* flags */
   #else
   #define ifr_flags       ifr_ifru.ifru_flags[0]  /* flags */
   #define ifr_prevflags   ifr_ifru.ifru_flags[1]  /* flags */
   #endif /* __APPLE__ */
   #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 _SIZEOF_ADDR_IFREQ(ifr) \
           ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
            (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
             (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
   
   struct ifaliasreq {
           char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
           struct  sockaddr ifra_addr;
           struct  sockaddr ifra_broadaddr;
           struct  sockaddr ifra_mask;
   };
   
   struct rslvmulti_req {
        struct sockaddr *sa;
        struct sockaddr **llsa;
   };
   
   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 */
   };
   
   #ifdef __APPLE__
   #ifdef __APPLE_API_UNSTABLE
   /*
    * DLIL KEV_DL_PROTO_ATTACHED/DETACHED structure
    */
   struct kev_dl_proto_data {
        struct net_event_data      link_data;
        u_long                     proto_family;
        u_long                     proto_remaining_count;
   };
   #endif /* __APPLE_API_UNSTABLE */
   #endif
   
   
   /*
    * Structure for SIOC[AGD]LIFADDR
    */
   struct if_laddrreq {
           char    iflr_name[IFNAMSIZ];
           u_int   flags;
   #define IFLR_PREFIX     0x8000  /* in: prefix given  out: kernel fills id */
           u_int   prefixlen;         /* in/out */
           struct  sockaddr_storage addr;   /* in/out */
           struct  sockaddr_storage dstaddr; /* out */
   };
   
   #ifdef KERNEL
   #ifdef MALLOC_DECLARE
   MALLOC_DECLARE(M_IFADDR);
   MALLOC_DECLARE(M_IFMADDR);
   #endif
   #endif
   
   #ifndef KERNEL
   struct if_nameindex {
           u_int   if_index;       /* 1, 2, ... */
           char    *if_name;       /* null terminated name: "le0", ... */
   };
   
   __BEGIN_DECLS
   u_int    if_nametoindex __P((const char *));
   char    *if_indextoname __P((u_int, char *));
   struct   if_nameindex *if_nameindex __P((void));
   void     if_freenameindex __P((struct if_nameindex *));
   __END_DECLS
   #endif
   
   #ifdef KERNEL
   #ifndef __APPLE__
   struct proc;
   
   int     prison_if __P((struct proc *p, struct sockaddr *sa));
   #endif
   
   #endif
   
   #endif /* !_NET_IF_H_ */

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