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 74#define IF_GET_IFACE 0x0001 /* for querying only */ 75#define IF_GET_PROTO 0x0002 76 77/* For definitions see hdlc.h */ 78#define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 79#define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 80#define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 81#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 82#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 83#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 84#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 85 86/* For definitions see hdlc.h */ 87#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 88#define IF_PROTO_PPP 0x2001 /* PPP protocol */ 89#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 90#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 91#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 92#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 93#define IF_PROTO_X25 0x2006 /* X.25 */ 94#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 95#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 96#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 97#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 98#define IF_PROTO_FR_ETH_PVC 0x200B 99#define IF_PROTO_RAW 0x200C /* RAW Socket */ 100 101/* RFC 2863 operational status */ 102enum { 103 IF_OPER_UNKNOWN, 104 IF_OPER_NOTPRESENT, 105 IF_OPER_DOWN, 106 IF_OPER_LOWERLAYERDOWN, 107 IF_OPER_TESTING, 108 IF_OPER_DORMANT, 109 IF_OPER_UP, 110}; 111 112/* link modes */ 113enum { 114 IF_LINK_MODE_DEFAULT, 115 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ 116}; 117 118/* 119 * Device mapping structure. I'd just gone off and designed a 120 * beautiful scheme using only loadable modules with arguments 121 * for driver options and along come the PCMCIA people 8) 122 * 123 * Ah well. The get() side of this is good for WDSETUP, and it'll 124 * be handy for debugging things. The set side is fine for now and 125 * being very small might be worth keeping for clean configuration. 126 */ 127 128struct ifmap 129{ 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}; 138 139struct if_settings 140{ 141 unsigned int type; /* Type of physical device or protocol */ 142 unsigned int size; /* Size of the data allocated by the caller */ 143 union { 144 /* {atm/eth/dsl}_settings anyone ? */ 145 raw_hdlc_proto __user *raw_hdlc; 146 cisco_proto __user *cisco; 147 fr_proto __user *fr; 148 fr_proto_pvc __user *fr_pvc; 149 fr_proto_pvc_info __user *fr_pvc_info; 150 151 /* interface settings */ 152 sync_serial_settings __user *sync; 153 te1_settings __user *te1; 154 } ifs_ifsu; 155}; 156 157/* 158 * Interface request structure used for socket 159 * ioctl's. All interface ioctl's must have parameter 160 * definitions which begin with ifr_name. The 161 * remainder may be interface specific. 162 */ 163 164struct ifreq 165{ 166#define IFHWADDRLEN 6 167 union 168 { 169 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 170 } ifr_ifrn; 171 172 union { 173 struct sockaddr ifru_addr; 174 struct sockaddr ifru_dstaddr; 175 struct sockaddr ifru_broadaddr; 176 struct sockaddr ifru_netmask; 177 struct sockaddr ifru_hwaddr; 178 short ifru_flags; 179 int ifru_ivalue; 180 int ifru_mtu; 181 struct ifmap ifru_map; 182 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 183 char ifru_newname[IFNAMSIZ]; 184 void __user * ifru_data; 185 struct if_settings ifru_settings; 186 } ifr_ifru; 187}; 188 189#define ifr_name ifr_ifrn.ifrn_name /* interface name */ 190#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 191#define ifr_addr ifr_ifru.ifru_addr /* address */ 192#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 193#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 194#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 195#define ifr_flags ifr_ifru.ifru_flags /* flags */ 196#define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 197#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 198#define ifr_map ifr_ifru.ifru_map /* device map */ 199#define ifr_slave ifr_ifru.ifru_slave /* slave device */ 200#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 201#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 202#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 203#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 204#define ifr_newname ifr_ifru.ifru_newname /* New name */ 205#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 206 207/* 208 * Structure used in SIOCGIFCONF request. 209 * Used to retrieve interface configuration 210 * for machine (useful for programs which 211 * must know all networks accessible). 212 */ 213 214struct ifconf 215{ 216 int ifc_len; /* size of buffer */ 217 union 218 { 219 char __user *ifcu_buf; 220 struct ifreq __user *ifcu_req; 221 } ifc_ifcu; 222}; 223#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 224#define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 225 226#endif /* _LINUX_IF_H */ 227