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