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