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/*

 * INET         An implementation of the TCP/IP protocol suite for the LINUX

 *              operating system.  INET is implemented using the  BSD Socket

 *              interface as the means of communication with the user level.

 *

 *              Global definitions for the INET interface module.

 *

 * Version:     @(#)if.h        1.0.2   04/18/93

 *

 * Authors:     Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988

 *              Ross Biro

 *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>

 *

 *              This program is free software; you can redistribute it and/or

 *              modify it under the terms of the GNU General Public License

 *              as published by the Free Software Foundation; either version

 *              2 of the License, or (at your option) any later version.

 */

#ifndef _LINUX_IF_H

#define _LINUX_IF_H

#include <linux/types.h>                /* for "__kernel_caddr_t" et al */

#include <linux/socket.h>               /* for "struct sockaddr" et al  */

#include <linux/compiler.h>             /* for "__user" et al           */

#define IFNAMSIZ        16

#include <linux/hdlc/ioctl.h>

/* Standard interface flags (netdevice->flags). */

#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 has p-p link    */

#define IFF_NOTRAILERS  0x20            /* avoid use of trailers        */

#define IFF_RUNNING     0x40            /* interface RFC2863 OPER_UP    */

#define IFF_NOARP       0x80            /* no ARP protocol              */

#define IFF_PROMISC     0x100           /* receive all packets          */

#define IFF_ALLMULTI    0x200           /* receive all multicast packets*/

#define IFF_MASTER      0x400           /* master of a load balancer    */

#define IFF_SLAVE       0x800           /* slave of a load balancer     */

#define IFF_MULTICAST   0x1000          /* Supports multicast           */

#define IFF_PORTSEL     0x2000          /* can set media type           */

#define IFF_AUTOMEDIA   0x4000          /* auto media select active     */

#define IFF_DYNAMIC     0x8000          /* dialup device with changing addresses*/

#define IFF_LOWER_UP    0x10000         /* driver signals L1 up         */

#define IFF_DORMANT     0x20000         /* driver signals dormant       */

#define IFF_VOLATILE    (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|\

                IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)

/* Private (from user) interface flags (netdevice->priv_flags). */

#define IFF_802_1Q_VLAN 0x1             /* 802.1Q VLAN device.          */

#define IFF_EBRIDGE     0x2             /* Ethernet bridging device.    */

#define IFF_SLAVE_INACTIVE      0x4     /* bonding slave not the curr. active */

#define IFF_MASTER_8023AD       0x8     /* bonding master, 802.3ad.     */

#define IFF_MASTER_ALB  0x10            /* bonding master, balance-alb. */

#define IFF_BONDING     0x20            /* bonding master or slave      */

#define IFF_SLAVE_NEEDARP 0x40          /* need ARPs for validation     */

#define IF_GET_IFACE    0x0001          /* for querying only */

#define IF_GET_PROTO    0x0002

/* For definitions see hdlc.h */

#define IF_IFACE_V35    0x1000          /* V.35 serial interface        */

#define IF_IFACE_V24    0x1001          /* V.24 serial interface        */

#define IF_IFACE_X21    0x1002          /* X.21 serial interface        */

#define IF_IFACE_T1     0x1003          /* T1 telco serial interface    */

#define IF_IFACE_E1     0x1004          /* E1 telco serial interface    */

#define IF_IFACE_SYNC_SERIAL 0x1005     /* can't be set by software     */

#define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */

/* For definitions see hdlc.h */

#define IF_PROTO_HDLC   0x2000          /* raw HDLC protocol            */

#define IF_PROTO_PPP    0x2001          /* PPP protocol                 */

#define IF_PROTO_CISCO  0x2002          /* Cisco HDLC protocol          */

#define IF_PROTO_FR     0x2003          /* Frame Relay protocol         */

#define IF_PROTO_FR_ADD_PVC 0x2004      /*    Create FR PVC             */

#define IF_PROTO_FR_DEL_PVC 0x2005      /*    Delete FR PVC             */

#define IF_PROTO_X25    0x2006          /* X.25                         */

#define IF_PROTO_HDLC_ETH 0x2007        /* raw HDLC, Ethernet emulation */

#define IF_PROTO_FR_ADD_ETH_PVC 0x2008  /*  Create FR Ethernet-bridged PVC */

#define IF_PROTO_FR_DEL_ETH_PVC 0x2009  /*  Delete FR Ethernet-bridged PVC */

#define IF_PROTO_FR_PVC 0x200A          /* for reading PVC status       */

#define IF_PROTO_FR_ETH_PVC 0x200B

#define IF_PROTO_RAW    0x200C          /* RAW Socket                   */

/* RFC 2863 operational status */

enum {

        IF_OPER_UNKNOWN,

        IF_OPER_NOTPRESENT,

        IF_OPER_DOWN,

        IF_OPER_LOWERLAYERDOWN,

        IF_OPER_TESTING,

        IF_OPER_DORMANT,

        IF_OPER_UP,

};

/* link modes */

enum {

        IF_LINK_MODE_DEFAULT,

        IF_LINK_MODE_DORMANT,   /* limit upward transition to dormant */

};

/*

 *      Device mapping structure. I'd just gone off and designed a

 *      beautiful scheme using only loadable modules with arguments

 *      for driver options and along come the PCMCIA people 8)

 *

 *      Ah well. The get() side of this is good for WDSETUP, and it'll

 *      be handy for debugging things. The set side is fine for now and

 *      being very small might be worth keeping for clean configuration.

 */

struct ifmap

{

        unsigned long mem_start;

        unsigned long mem_end;

        unsigned short base_addr;

        unsigned char irq;

        unsigned char dma;

        unsigned char port;

        /* 3 bytes spare */

};

struct if_settings

{

        unsigned int type;      /* Type of physical device or protocol */

        unsigned int size;      /* Size of the data allocated by the caller */

        union {

                /* {atm/eth/dsl}_settings anyone ? */

                raw_hdlc_proto          __user *raw_hdlc;

                cisco_proto             __user *cisco;

                fr_proto                __user *fr;

                fr_proto_pvc            __user *fr_pvc;

                fr_proto_pvc_info       __user *fr_pvc_info;

                /* interface settings */

                sync_serial_settings    __user *sync;

                te1_settings            __user *te1;

        } ifs_ifsu;

};

/*

 * 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 IFHWADDRLEN     6

        union

        {

                char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */

        } ifr_ifrn;

        union {

                struct  sockaddr ifru_addr;

                struct  sockaddr ifru_dstaddr;

                struct  sockaddr ifru_broadaddr;

                struct  sockaddr ifru_netmask;

                struct  sockaddr ifru_hwaddr;

                short   ifru_flags;

                int     ifru_ivalue;

                int     ifru_mtu;

                struct  ifmap ifru_map;

                char    ifru_slave[IFNAMSIZ];   /* Just fits the size */

                char    ifru_newname[IFNAMSIZ];

                void __user *   ifru_data;

                struct  if_settings ifru_settings;

        } ifr_ifru;

};

#define ifr_name        ifr_ifrn.ifrn_name      /* interface name       */

#define ifr_hwaddr      ifr_ifru.ifru_hwaddr    /* MAC address          */

#define ifr_addr        ifr_ifru.ifru_addr      /* address              */

#define ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-p lnk */

#define ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address    */

#define ifr_netmask     ifr_ifru.ifru_netmask   /* interface net mask   */

#define ifr_flags       ifr_ifru.ifru_flags     /* flags                */

#define ifr_metric      ifr_ifru.ifru_ivalue    /* metric               */

#define ifr_mtu         ifr_ifru.ifru_mtu       /* mtu                  */

#define ifr_map         ifr_ifru.ifru_map       /* device map           */

#define ifr_slave       ifr_ifru.ifru_slave     /* slave device         */

#define ifr_data        ifr_ifru.ifru_data      /* for use by interface */

#define ifr_ifindex     ifr_ifru.ifru_ivalue    /* interface index      */

#define ifr_bandwidth   ifr_ifru.ifru_ivalue    /* link bandwidth       */

#define ifr_qlen        ifr_ifru.ifru_ivalue    /* Queue length         */

#define ifr_newname     ifr_ifru.ifru_newname   /* New name             */

#define ifr_settings    ifr_ifru.ifru_settings  /* Device/proto settings*/

/*

 * 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 buffer       */

        union

        {

                char __user *ifcu_buf;

                struct ifreq __user *ifcu_req;

        } ifc_ifcu;

};

#define ifc_buf ifc_ifcu.ifcu_buf               /* buffer address       */

#define ifc_req ifc_ifcu.ifcu_req               /* array of structures  */

#endif /* _LINUX_IF_H */