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#define IFF_DISABLE_NETPOLL 0x1000 /* disable netpoll at run-time */ 75#define IFF_MACVLAN_PORT 0x2000 /* device used as macvlan port */ 76#define IFF_BRIDGE_PORT 0x4000 /* device used as bridge port */ 77#define IFF_OVS_DATAPATH 0x8000 /* device used as Open vSwitch 78 * datapath port */ 79#define IFF_TX_SKB_SHARING 0x10000 /* The interface supports sharing 80 * skbs on transmit */ 81#define IFF_UNICAST_FLT 0x20000 /* Supports unicast filtering */ 82#define IFF_TEAM_PORT 0x40000 /* device used as team port */ 83#define IFF_SUPP_NOFCS 0x80000 /* device supports sending custom FCS */ 84#define IFF_LIVE_ADDR_CHANGE 0x100000 /* device supports hardware address 85 * change when it's running */ 86 87 88#define IF_GET_IFACE 0x0001 /* for querying only */ 89#define IF_GET_PROTO 0x0002 90 91/* For definitions see hdlc.h */ 92#define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 93#define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 94#define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 95#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 96#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 97#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 98#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 99 100/* For definitions see hdlc.h */ 101#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 102#define IF_PROTO_PPP 0x2001 /* PPP protocol */ 103#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 104#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 105#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 106#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 107#define IF_PROTO_X25 0x2006 /* X.25 */ 108#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 109#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 110#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 111#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 112#define IF_PROTO_FR_ETH_PVC 0x200B 113#define IF_PROTO_RAW 0x200C /* RAW Socket */ 114 115/* RFC 2863 operational status */ 116enum { 117 IF_OPER_UNKNOWN, 118 IF_OPER_NOTPRESENT, 119 IF_OPER_DOWN, 120 IF_OPER_LOWERLAYERDOWN, 121 IF_OPER_TESTING, 122 IF_OPER_DORMANT, 123 IF_OPER_UP, 124}; 125 126/* link modes */ 127enum { 128 IF_LINK_MODE_DEFAULT, 129 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ 130}; 131 132/* 133 * Device mapping structure. I'd just gone off and designed a 134 * beautiful scheme using only loadable modules with arguments 135 * for driver options and along come the PCMCIA people 8) 136 * 137 * Ah well. The get() side of this is good for WDSETUP, and it'll 138 * be handy for debugging things. The set side is fine for now and 139 * being very small might be worth keeping for clean configuration. 140 */ 141 142struct ifmap { 143 unsigned long mem_start; 144 unsigned long mem_end; 145 unsigned short base_addr; 146 unsigned char irq; 147 unsigned char dma; 148 unsigned char port; 149 /* 3 bytes spare */ 150}; 151 152struct if_settings { 153 unsigned int type; /* Type of physical device or protocol */ 154 unsigned int size; /* Size of the data allocated by the caller */ 155 union { 156 /* {atm/eth/dsl}_settings anyone ? */ 157 raw_hdlc_proto __user *raw_hdlc; 158 cisco_proto __user *cisco; 159 fr_proto __user *fr; 160 fr_proto_pvc __user *fr_pvc; 161 fr_proto_pvc_info __user *fr_pvc_info; 162 163 /* interface settings */ 164 sync_serial_settings __user *sync; 165 te1_settings __user *te1; 166 } ifs_ifsu; 167}; 168 169/* 170 * Interface request structure used for socket 171 * ioctl's. All interface ioctl's must have parameter 172 * definitions which begin with ifr_name. The 173 * remainder may be interface specific. 174 */ 175 176struct ifreq { 177#define IFHWADDRLEN 6 178 union 179 { 180 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 181 } ifr_ifrn; 182 183 union { 184 struct sockaddr ifru_addr; 185 struct sockaddr ifru_dstaddr; 186 struct sockaddr ifru_broadaddr; 187 struct sockaddr ifru_netmask; 188 struct sockaddr ifru_hwaddr; 189 short ifru_flags; 190 int ifru_ivalue; 191 int ifru_mtu; 192 struct ifmap ifru_map; 193 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 194 char ifru_newname[IFNAMSIZ]; 195 void __user * ifru_data; 196 struct if_settings ifru_settings; 197 } ifr_ifru; 198}; 199 200#define ifr_name ifr_ifrn.ifrn_name /* interface name */ 201#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 202#define ifr_addr ifr_ifru.ifru_addr /* address */ 203#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 204#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 205#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 206#define ifr_flags ifr_ifru.ifru_flags /* flags */ 207#define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 208#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 209#define ifr_map ifr_ifru.ifru_map /* device map */ 210#define ifr_slave ifr_ifru.ifru_slave /* slave device */ 211#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 212#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 213#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 214#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 215#define ifr_newname ifr_ifru.ifru_newname /* New name */ 216#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 217 218/* 219 * Structure used in SIOCGIFCONF request. 220 * Used to retrieve interface configuration 221 * for machine (useful for programs which 222 * must know all networks accessible). 223 */ 224 225struct ifconf { 226 int ifc_len; /* size of buffer */ 227 union { 228 char __user *ifcu_buf; 229 struct ifreq __user *ifcu_req; 230 } ifc_ifcu; 231}; 232#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 233#define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 234 235#endif /* _LINUX_IF_H */ 236