if.h revision 5a67f8f9d3a7f80a49554fb1ca4e68a1effd5399
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 /* 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_ECHO 0x40000 /* echo sent packets */ 54 55#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\ 56 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT) 57 58/* Private (from user) interface flags (netdevice->priv_flags). */ 59#define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */ 60#define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */ 61#define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */ 62#define IFF_MASTER_8023AD 0x8 /* bonding master, 802.3ad. */ 63#define IFF_MASTER_ALB 0x10 /* bonding master, balance-alb. */ 64#define IFF_BONDING 0x20 /* bonding master or slave */ 65#define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */ 66#define IFF_ISATAP 0x80 /* ISATAP interface (RFC4214) */ 67 68#define IF_GET_IFACE 0x0001 /* for querying only */ 69#define IF_GET_PROTO 0x0002 70 71/* For definitions see hdlc.h */ 72#define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 73#define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 74#define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 75#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 76#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 77#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 78#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 79 80/* For definitions see hdlc.h */ 81#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 82#define IF_PROTO_PPP 0x2001 /* PPP protocol */ 83#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 84#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 85#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 86#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 87#define IF_PROTO_X25 0x2006 /* X.25 */ 88#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 89#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 90#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 91#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 92#define IF_PROTO_FR_ETH_PVC 0x200B 93#define IF_PROTO_RAW 0x200C /* RAW Socket */ 94 95/* RFC 2863 operational status */ 96enum { 97 IF_OPER_UNKNOWN, 98 IF_OPER_NOTPRESENT, 99 IF_OPER_DOWN, 100 IF_OPER_LOWERLAYERDOWN, 101 IF_OPER_TESTING, 102 IF_OPER_DORMANT, 103 IF_OPER_UP, 104}; 105 106/* link modes */ 107enum { 108 IF_LINK_MODE_DEFAULT, 109 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ 110}; 111 112/* 113 * Device mapping structure. I'd just gone off and designed a 114 * beautiful scheme using only loadable modules with arguments 115 * for driver options and along come the PCMCIA people 8) 116 * 117 * Ah well. The get() side of this is good for WDSETUP, and it'll 118 * be handy for debugging things. The set side is fine for now and 119 * being very small might be worth keeping for clean configuration. 120 */ 121 122struct ifmap 123{ 124 unsigned long mem_start; 125 unsigned long mem_end; 126 unsigned short base_addr; 127 unsigned char irq; 128 unsigned char dma; 129 unsigned char port; 130 /* 3 bytes spare */ 131}; 132 133struct if_settings 134{ 135 unsigned int type; /* Type of physical device or protocol */ 136 unsigned int size; /* Size of the data allocated by the caller */ 137 union { 138 /* {atm/eth/dsl}_settings anyone ? */ 139 raw_hdlc_proto *raw_hdlc; 140 cisco_proto *cisco; 141 fr_proto *fr; 142 fr_proto_pvc *fr_pvc; 143 fr_proto_pvc_info *fr_pvc_info; 144 145 /* interface settings */ 146 sync_serial_settings *sync; 147 te1_settings *te1; 148 } ifs_ifsu; 149}; 150 151/* 152 * Interface request structure used for socket 153 * ioctl's. All interface ioctl's must have parameter 154 * definitions which begin with ifr_name. The 155 * remainder may be interface specific. 156 */ 157 158struct ifreq 159{ 160#define IFHWADDRLEN 6 161 union 162 { 163 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 164 } ifr_ifrn; 165 166 union { 167 struct sockaddr ifru_addr; 168 struct sockaddr ifru_dstaddr; 169 struct sockaddr ifru_broadaddr; 170 struct sockaddr ifru_netmask; 171 struct sockaddr ifru_hwaddr; 172 short ifru_flags; 173 int ifru_ivalue; 174 int ifru_mtu; 175 struct ifmap ifru_map; 176 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 177 char ifru_newname[IFNAMSIZ]; 178 void * ifru_data; 179 struct if_settings ifru_settings; 180 } ifr_ifru; 181}; 182 183#define ifr_name ifr_ifrn.ifrn_name /* interface name */ 184#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 185#define ifr_addr ifr_ifru.ifru_addr /* address */ 186#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 187#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 188#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 189#define ifr_flags ifr_ifru.ifru_flags /* flags */ 190#define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 191#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 192#define ifr_map ifr_ifru.ifru_map /* device map */ 193#define ifr_slave ifr_ifru.ifru_slave /* slave device */ 194#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 195#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 196#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 197#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 198#define ifr_newname ifr_ifru.ifru_newname /* New name */ 199#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 200 201/* 202 * Structure used in SIOCGIFCONF request. 203 * Used to retrieve interface configuration 204 * for machine (useful for programs which 205 * must know all networks accessible). 206 */ 207 208struct ifconf 209{ 210 int ifc_len; /* size of buffer */ 211 union 212 { 213 char *ifcu_buf; 214 struct ifreq *ifcu_req; 215 } ifc_ifcu; 216}; 217#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 218#define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 219 220#endif /* _LINUX_IF_H */ 221