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Annotation of XNU/bsd/net/if.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1982, 1986, 1989, 1993
        !            24:  *     The Regents of the University of California.  All rights reserved.
        !            25:  *
        !            26:  * Redistribution and use in source and binary forms, with or without
        !            27:  * modification, are permitted provided that the following conditions
        !            28:  * are met:
        !            29:  * 1. Redistributions of source code must retain the above copyright
        !            30:  *    notice, this list of conditions and the following disclaimer.
        !            31:  * 2. Redistributions in binary form must reproduce the above copyright
        !            32:  *    notice, this list of conditions and the following disclaimer in the
        !            33:  *    documentation and/or other materials provided with the distribution.
        !            34:  * 3. All advertising materials mentioning features or use of this software
        !            35:  *    must display the following acknowledgement:
        !            36:  *     This product includes software developed by the University of
        !            37:  *     California, Berkeley and its contributors.
        !            38:  * 4. Neither the name of the University nor the names of its contributors
        !            39:  *    may be used to endorse or promote products derived from this software
        !            40:  *    without specific prior written permission.
        !            41:  *
        !            42:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            43:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            44:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            45:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            46:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            47:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            48:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            49:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            50:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            51:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            52:  * SUCH DAMAGE.
        !            53:  *
        !            54:  *     @(#)if.h        8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: #ifndef _NET_IF_H_
        !            58: #define        _NET_IF_H_
        !            59: 
        !            60: /*
        !            61:  * <net/if.h> does not depend on <sys/time.h> on most other systems.  This
        !            62:  * helps userland compatability.  (struct timeval ifi_lastchange)
        !            63:  */
        !            64: 
        !            65: #include <sys/time.h>
        !            66: #include <net/if_var.h>
        !            67: 
        !            68: 
        !            69: #define        IFF_UP          0x1             /* interface is up */
        !            70: #define        IFF_BROADCAST   0x2             /* broadcast address valid */
        !            71: #define        IFF_DEBUG       0x4             /* turn on debugging */
        !            72: #define        IFF_LOOPBACK    0x8             /* is a loopback net */
        !            73: #define        IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
        !            74: #define IFF_NOTRAILERS 0x20            /* obsolete: avoid use of trailers */
        !            75: #define        IFF_RUNNING     0x40            /* resources allocated */
        !            76: #define        IFF_NOARP       0x80            /* no address resolution protocol */
        !            77: #define        IFF_PROMISC     0x100           /* receive all packets */
        !            78: #define        IFF_ALLMULTI    0x200           /* receive all multicast packets */
        !            79: #define        IFF_OACTIVE     0x400           /* transmission in progress */
        !            80: #define        IFF_SIMPLEX     0x800           /* can't hear own transmissions */
        !            81: #define        IFF_LINK0       0x1000          /* per link layer defined bit */
        !            82: #define        IFF_LINK1       0x2000          /* per link layer defined bit */
        !            83: #define        IFF_LINK2       0x4000          /* per link layer defined bit */
        !            84: #define        IFF_ALTPHYS     IFF_LINK2       /* use alternate physical connection */
        !            85: #define        IFF_MULTICAST   0x8000          /* supports multicast */
        !            86: #define IFF_SPLITTER   IFF_LINK2       /* Y splitter in force */
        !            87: 
        !            88: 
        !            89: 
        !            90: #define IFEF_DVR_REENTRY_OK    0x20    /* When set, driver may be reentered from its own thread */
        !            91: 
        !            92: 
        !            93: /* flags set internally only: */
        !            94: #define        IFF_CANTCHANGE \
        !            95:        (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
        !            96:            IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
        !            97: 
        !            98: #define        IFQ_MAXLEN      50
        !            99: #define        IFNET_SLOWHZ    1               /* granularity is 1 second */
        !           100: 
        !           101: /*
        !           102:  * Message format for use in obtaining information about interfaces
        !           103:  * from getkerninfo and the routing socket
        !           104:  */
        !           105: struct if_msghdr {
        !           106:        u_short ifm_msglen;     /* to skip over non-understood messages */
        !           107:        u_char  ifm_version;    /* future binary compatability */
        !           108:        u_char  ifm_type;       /* message type */
        !           109:        int     ifm_addrs;      /* like rtm_addrs */
        !           110:        int     ifm_flags;      /* value of if_flags */
        !           111:        u_short ifm_index;      /* index for associated ifp */
        !           112:        struct  if_data ifm_data;/* statistics and other data about if */
        !           113: };
        !           114: 
        !           115: /*
        !           116:  * Message format for use in obtaining information about interface addresses
        !           117:  * from getkerninfo and the routing socket
        !           118:  */
        !           119: struct ifa_msghdr {
        !           120:        u_short ifam_msglen;    /* to skip over non-understood messages */
        !           121:        u_char  ifam_version;   /* future binary compatability */
        !           122:        u_char  ifam_type;      /* message type */
        !           123:        int     ifam_addrs;     /* like rtm_addrs */
        !           124:        int     ifam_flags;     /* value of ifa_flags */
        !           125:        u_short ifam_index;     /* index for associated ifp */
        !           126:        int     ifam_metric;    /* value of ifa_metric */
        !           127: };
        !           128: 
        !           129: /*
        !           130:  * Message format for use in obtaining information about multicast addresses
        !           131:  * from the routing socket
        !           132:  */
        !           133: struct ifma_msghdr {
        !           134:        u_short ifmam_msglen;   /* to skip over non-understood messages */
        !           135:        u_char  ifmam_version;  /* future binary compatability */
        !           136:        u_char  ifmam_type;     /* message type */
        !           137:        int     ifmam_addrs;    /* like rtm_addrs */
        !           138:        int     ifmam_flags;    /* value of ifa_flags */
        !           139:        u_short ifmam_index;    /* index for associated ifp */
        !           140: };
        !           141: 
        !           142: /*
        !           143:  * Interface request structure used for socket
        !           144:  * ioctl's.  All interface ioctl's must have parameter
        !           145:  * definitions which begin with ifr_name.  The
        !           146:  * remainder may be interface specific.
        !           147:  */
        !           148: struct ifreq {
        !           149: #define        IFNAMSIZ        16
        !           150:        char    ifr_name[IFNAMSIZ];             /* if name, e.g. "en0" */
        !           151:        union {
        !           152:                struct  sockaddr ifru_addr;
        !           153:                struct  sockaddr ifru_dstaddr;
        !           154:                struct  sockaddr ifru_broadaddr;
        !           155:                short   ifru_flags;
        !           156:                int     ifru_metric;
        !           157:                int     ifru_mtu;
        !           158:                int     ifru_phys;
        !           159:                int     ifru_media;
        !           160:                caddr_t ifru_data;
        !           161:        } ifr_ifru;
        !           162: #define        ifr_addr        ifr_ifru.ifru_addr      /* address */
        !           163: #define        ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-to-p link */
        !           164: #define        ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address */
        !           165: #define        ifr_flags       ifr_ifru.ifru_flags     /* flags */
        !           166: #define        ifr_metric      ifr_ifru.ifru_metric    /* metric */
        !           167: #define        ifr_mtu         ifr_ifru.ifru_mtu       /* mtu */
        !           168: #define ifr_phys       ifr_ifru.ifru_phys      /* physical wire */
        !           169: #define ifr_media      ifr_ifru.ifru_media     /* physical media */
        !           170: #define        ifr_data        ifr_ifru.ifru_data      /* for use by interface */
        !           171: };
        !           172: 
        !           173: #define        _SIZEOF_ADDR_IFREQ(ifr) \
        !           174:        ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
        !           175:         (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
        !           176:          (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
        !           177: 
        !           178: struct ifaliasreq {
        !           179:        char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
        !           180:        struct  sockaddr ifra_addr;
        !           181:        struct  sockaddr ifra_broadaddr;
        !           182:        struct  sockaddr ifra_mask;
        !           183: };
        !           184: 
        !           185: struct ifmediareq {
        !           186:        char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
        !           187:        int     ifm_current;            /* current media options */
        !           188:        int     ifm_mask;               /* don't care mask */
        !           189:        int     ifm_status;             /* media status */
        !           190:        int     ifm_active;             /* active options */
        !           191:        int     ifm_count;              /* # entries in ifm_ulist array */
        !           192:        int     *ifm_ulist;             /* media words */
        !           193: };
        !           194: /*
        !           195:  * Structure used in SIOCGIFCONF request.
        !           196:  * Used to retrieve interface configuration
        !           197:  * for machine (useful for programs which
        !           198:  * must know all networks accessible).
        !           199:  */
        !           200: struct ifconf {
        !           201:        int     ifc_len;                /* size of associated buffer */
        !           202:        union {
        !           203:                caddr_t ifcu_buf;
        !           204:                struct  ifreq *ifcu_req;
        !           205:        } ifc_ifcu;
        !           206: #define        ifc_buf ifc_ifcu.ifcu_buf       /* buffer address */
        !           207: #define        ifc_req ifc_ifcu.ifcu_req       /* array of structures returned */
        !           208: };
        !           209: 
        !           210: #ifdef KERNEL
        !           211: #ifdef MALLOC_DECLARE
        !           212: MALLOC_DECLARE(M_IFADDR);
        !           213: MALLOC_DECLARE(M_IFMADDR);
        !           214: #endif
        !           215: #endif
        !           216: 
        !           217: /* XXX - this should go away soon */
        !           218: #ifdef KERNEL
        !           219: #include <net/if_var.h>
        !           220: #endif
        !           221: 
        !           222: #endif /* !_NET_IF_H_ */

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