LCOV - code coverage report
Current view: top level - include/linux - if.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 2 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : /*
       2             :  * INET         An implementation of the TCP/IP protocol suite for the LINUX
       3             :  *              operating system.  INET is implemented using the  BSD Socket
       4             :  *              interface as the means of communication with the user level.
       5             :  *
       6             :  *              Global definitions for the INET interface module.
       7             :  *
       8             :  * Version:     @(#)if.h        1.0.2   04/18/93
       9             :  *
      10             :  * Authors:     Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
      11             :  *              Ross Biro
      12             :  *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
      13             :  *
      14             :  *              This program is free software; you can redistribute it and/or
      15             :  *              modify it under the terms of the GNU General Public License
      16             :  *              as published by the Free Software Foundation; either version
      17             :  *              2 of the License, or (at your option) any later version.
      18             :  */
      19             : #ifndef _LINUX_IF_H
      20             : #define _LINUX_IF_H
      21             : 
      22             : #include <linux/types.h>          /* for "__kernel_caddr_t" et al       */
      23             : #include <linux/socket.h>         /* for "struct sockaddr" et al        */
      24             : #include <linux/compiler.h>               /* for "__user" et al           */
      25             : 
      26             : #define IFNAMSIZ        16
      27             : #define IFALIASZ        256
      28             : #include <linux/hdlc/ioctl.h>
      29             : 
      30             : /* Standard interface flags (netdevice->flags). */
      31             : #define IFF_UP          0x1             /* interface is up              */
      32             : #define IFF_BROADCAST   0x2             /* broadcast address valid      */
      33             : #define IFF_DEBUG       0x4             /* turn on debugging            */
      34             : #define IFF_LOOPBACK    0x8             /* is a loopback net            */
      35             : #define IFF_POINTOPOINT 0x10            /* interface is has p-p link    */
      36             : #define IFF_NOTRAILERS  0x20            /* avoid use of trailers        */
      37             : #define IFF_RUNNING     0x40            /* interface RFC2863 OPER_UP    */
      38             : #define IFF_NOARP       0x80            /* no ARP protocol              */
      39             : #define IFF_PROMISC     0x100           /* receive all packets          */
      40             : #define IFF_ALLMULTI    0x200           /* receive all multicast packets*/
      41             : 
      42             : #define IFF_MASTER      0x400           /* master of a load balancer    */
      43             : #define IFF_SLAVE       0x800           /* slave of a load balancer     */
      44             : 
      45             : #define IFF_MULTICAST   0x1000          /* Supports multicast           */
      46             : 
      47             : #define IFF_PORTSEL     0x2000          /* can set media type           */
      48             : #define IFF_AUTOMEDIA   0x4000          /* auto media select active     */
      49             : #define IFF_DYNAMIC     0x8000          /* dialup device with changing addresses*/
      50             : 
      51             : #define IFF_LOWER_UP    0x10000         /* driver signals L1 up         */
      52             : #define IFF_DORMANT     0x20000         /* driver signals dormant       */
      53             : 
      54             : #define IFF_ECHO        0x40000         /* echo sent packets            */
      55             : 
      56             : #define IFF_VOLATILE    (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
      57             :                 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
      58             : 
      59             : /* Private (from user) interface flags (netdevice->priv_flags). */
      60             : #define IFF_802_1Q_VLAN 0x1             /* 802.1Q VLAN device.          */
      61             : #define IFF_EBRIDGE     0x2             /* Ethernet bridging device.    */
      62             : #define IFF_SLAVE_INACTIVE      0x4     /* bonding slave not the curr. active */
      63             : #define IFF_MASTER_8023AD       0x8     /* bonding master, 802.3ad.     */
      64             : #define IFF_MASTER_ALB  0x10            /* bonding master, balance-alb. */
      65             : #define IFF_BONDING     0x20            /* bonding master or slave      */
      66             : #define IFF_SLAVE_NEEDARP 0x40          /* need ARPs for validation     */
      67             : #define IFF_ISATAP      0x80            /* ISATAP interface (RFC4214)   */
      68             : #define IFF_MASTER_ARPMON 0x100         /* bonding master, ARP mon in use */
      69             : #define IFF_WAN_HDLC    0x200           /* WAN HDLC device              */
      70             : #define IFF_XMIT_DST_RELEASE 0x400      /* dev_hard_start_xmit() is allowed to
      71             :                                          * release skb->dst
      72             :                                          */
      73             : #define IFF_DONT_BRIDGE 0x800           /* disallow bridging this ether dev */
      74             : 
      75             : #define IF_GET_IFACE    0x0001          /* for querying only */
      76             : #define IF_GET_PROTO    0x0002
      77             : 
      78             : /* For definitions see hdlc.h */
      79             : #define IF_IFACE_V35    0x1000          /* V.35 serial interface        */
      80             : #define IF_IFACE_V24    0x1001          /* V.24 serial interface        */
      81             : #define IF_IFACE_X21    0x1002          /* X.21 serial interface        */
      82             : #define IF_IFACE_T1     0x1003          /* T1 telco serial interface    */
      83             : #define IF_IFACE_E1     0x1004          /* E1 telco serial interface    */
      84             : #define IF_IFACE_SYNC_SERIAL 0x1005     /* can't be set by software     */
      85             : #define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
      86             : 
      87             : /* For definitions see hdlc.h */
      88             : #define IF_PROTO_HDLC   0x2000          /* raw HDLC protocol            */
      89             : #define IF_PROTO_PPP    0x2001          /* PPP protocol                 */
      90             : #define IF_PROTO_CISCO  0x2002          /* Cisco HDLC protocol          */
      91             : #define IF_PROTO_FR     0x2003          /* Frame Relay protocol         */
      92             : #define IF_PROTO_FR_ADD_PVC 0x2004      /*    Create FR PVC             */
      93             : #define IF_PROTO_FR_DEL_PVC 0x2005      /*    Delete FR PVC             */
      94             : #define IF_PROTO_X25    0x2006          /* X.25                         */
      95             : #define IF_PROTO_HDLC_ETH 0x2007        /* raw HDLC, Ethernet emulation */
      96             : #define IF_PROTO_FR_ADD_ETH_PVC 0x2008  /*  Create FR Ethernet-bridged PVC */
      97             : #define IF_PROTO_FR_DEL_ETH_PVC 0x2009  /*  Delete FR Ethernet-bridged PVC */
      98             : #define IF_PROTO_FR_PVC 0x200A          /* for reading PVC status       */
      99             : #define IF_PROTO_FR_ETH_PVC 0x200B
     100             : #define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
     101             : 
     102             : /* RFC 2863 operational status */
     103             : enum {
     104             :         IF_OPER_UNKNOWN,
     105             :         IF_OPER_NOTPRESENT,
     106             :         IF_OPER_DOWN,
     107             :         IF_OPER_LOWERLAYERDOWN,
     108             :         IF_OPER_TESTING,
     109             :         IF_OPER_DORMANT,
     110             :         IF_OPER_UP,
     111             : };
     112             : 
     113             : /* link modes */
     114             : enum {
     115             :         IF_LINK_MODE_DEFAULT,
     116             :         IF_LINK_MODE_DORMANT,   /* limit upward transition to dormant */
     117             : };
     118             : 
     119             : /*
     120             :  *      Device mapping structure. I'd just gone off and designed a 
     121             :  *      beautiful scheme using only loadable modules with arguments
     122             :  *      for driver options and along come the PCMCIA people 8)
     123             :  *
     124             :  *      Ah well. The get() side of this is good for WDSETUP, and it'll
     125             :  *      be handy for debugging things. The set side is fine for now and
     126             :  *      being very small might be worth keeping for clean configuration.
     127             :  */
     128             : 
     129             : struct ifmap {
     130             :         unsigned long mem_start;
     131             :         unsigned long mem_end;
     132             :         unsigned short base_addr; 
     133             :         unsigned char irq;
     134             :         unsigned char dma;
     135             :         unsigned char port;
     136             :         /* 3 bytes spare */
     137           2 : };
     138             : 
     139             : struct if_settings {
     140             :         unsigned int type;      /* Type of physical device or protocol */
     141             :         unsigned int size;      /* Size of the data allocated by the caller */
     142             :         union {
     143             :                 /* {atm/eth/dsl}_settings anyone ? */
     144             :                 raw_hdlc_proto          __user *raw_hdlc;
     145             :                 cisco_proto             __user *cisco;
     146             :                 fr_proto                __user *fr;
     147             :                 fr_proto_pvc            __user *fr_pvc;
     148             :                 fr_proto_pvc_info       __user *fr_pvc_info;
     149             : 
     150             :                 /* interface settings */
     151             :                 sync_serial_settings    __user *sync;
     152             :                 te1_settings            __user *te1;
     153             :         } ifs_ifsu;
     154             : };
     155           3 : 
     156             : /*
     157             :  * Interface request structure used for socket
     158             :  * ioctl's.  All interface ioctl's must have parameter
     159             :  * definitions which begin with ifr_name.  The
     160             :  * remainder may be interface specific.
     161             :  */
     162             : 
     163             : struct ifreq {
     164             : #define IFHWADDRLEN     6
     165             :         union
     166             :         {
     167             :                 char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
     168             :         } ifr_ifrn;
     169             :         
     170             :         union {
     171             :                 struct  sockaddr ifru_addr;
     172             :                 struct  sockaddr ifru_dstaddr;
     173             :                 struct  sockaddr ifru_broadaddr;
     174             :                 struct  sockaddr ifru_netmask;
     175             :                 struct  sockaddr ifru_hwaddr;
     176             :                 short   ifru_flags;
     177             :                 int     ifru_ivalue;
     178             :                 int     ifru_mtu;
     179             :                 struct  ifmap ifru_map;
     180             :                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
     181             :                 char    ifru_newname[IFNAMSIZ];
     182             :                 void __user *   ifru_data;
     183             :                 struct  if_settings ifru_settings;
     184             :         } ifr_ifru;
     185             : };
     186             : 
     187             : #define ifr_name        ifr_ifrn.ifrn_name      /* interface name       */
     188             : #define ifr_hwaddr      ifr_ifru.ifru_hwaddr    /* MAC address          */
     189             : #define ifr_addr        ifr_ifru.ifru_addr      /* address              */
     190             : #define ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-p lnk */
     191             : #define ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address    */
     192             : #define ifr_netmask     ifr_ifru.ifru_netmask   /* interface net mask   */
     193             : #define ifr_flags       ifr_ifru.ifru_flags     /* flags                */
     194             : #define ifr_metric      ifr_ifru.ifru_ivalue    /* metric               */
     195             : #define ifr_mtu         ifr_ifru.ifru_mtu       /* mtu                  */
     196             : #define ifr_map         ifr_ifru.ifru_map       /* device map           */
     197             : #define ifr_slave       ifr_ifru.ifru_slave     /* slave device         */
     198             : #define ifr_data        ifr_ifru.ifru_data      /* for use by interface */
     199             : #define ifr_ifindex     ifr_ifru.ifru_ivalue    /* interface index      */
     200             : #define ifr_bandwidth   ifr_ifru.ifru_ivalue    /* link bandwidth       */
     201             : #define ifr_qlen        ifr_ifru.ifru_ivalue    /* Queue length         */
     202             : #define ifr_newname     ifr_ifru.ifru_newname   /* New name             */
     203             : #define ifr_settings    ifr_ifru.ifru_settings  /* Device/proto settings*/
     204             : 
     205             : /*
     206             :  * Structure used in SIOCGIFCONF request.
     207             :  * Used to retrieve interface configuration
     208             :  * for machine (useful for programs which
     209             :  * must know all networks accessible).
     210             :  */
     211             : 
     212             : struct ifconf  {
     213             :         int     ifc_len;                        /* size of buffer       */
     214             :         union {
     215             :                 char __user *ifcu_buf;
     216             :                 struct ifreq __user *ifcu_req;
     217             :         } ifc_ifcu;
     218             : };
     219             : #define ifc_buf ifc_ifcu.ifcu_buf               /* buffer address       */
     220             : #define ifc_req ifc_ifcu.ifcu_req               /* array of structures  */
     221             : 
     222             : #endif /* _LINUX_IF_H */

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