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 25 #define IFNAMSIZ 16 26 #include <linux/hdlc/ioctl.h> 27 28 /* Standard interface flags (netdevice->flags). */ 29 #define IFF_UP 0x1 /* interface is up */ 30 #define IFF_BROADCAST 0x2 /* broadcast address valid */ 31 #define IFF_DEBUG 0x4 /* turn on debugging */ 32 #define IFF_LOOPBACK 0x8 /* is a loopback net */ 33 #define IFF_POINTOPOINT 0x10 /* interface is has p-p link */ 34 #define IFF_NOTRAILERS 0x20 /* avoid use of trailers */ 35 #define IFF_RUNNING 0x40 /* interface RFC2863 OPER_UP */ 36 #define IFF_NOARP 0x80 /* no ARP protocol */ 37 #define IFF_PROMISC 0x100 /* receive all packets */ 38 #define IFF_ALLMULTI 0x200 /* receive all multicast packets*/ 39 40 #define IFF_MASTER 0x400 /* master of a load balancer */ 41 #define IFF_SLAVE 0x800 /* slave of a load balancer */ 42 43 #define IFF_MULTICAST 0x1000 /* Supports multicast */ 44 45 #define IFF_PORTSEL 0x2000 /* can set media type */ 46 #define IFF_AUTOMEDIA 0x4000 /* auto media select active */ 47 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses*/ 48 49 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ 50 #define IFF_DORMANT 0x20000 /* driver signals dormant */ 51 52 #define IFF_ECHO 0x40000 /* echo sent packets */ 53 54 #define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\ 55 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT) 56 57 /* Private (from user) interface flags (netdevice->priv_flags). */ 58 #define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */ 59 #define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */ 60 #define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */ 61 #define IFF_MASTER_8023AD 0x8 /* bonding master, 802.3ad. */ 62 #define IFF_MASTER_ALB 0x10 /* bonding master, balance-alb. */ 63 #define IFF_BONDING 0x20 /* bonding master or slave */ 64 #define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */ 65 #define IFF_ISATAP 0x80 /* ISATAP interface (RFC4214) */ 66 67 #define IF_GET_IFACE 0x0001 /* for querying only */ 68 #define IF_GET_PROTO 0x0002 69 70 /* For definitions see hdlc.h */ 71 #define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 72 #define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 73 #define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 74 #define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 75 #define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 76 #define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 77 #define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 78 79 /* For definitions see hdlc.h */ 80 #define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 81 #define IF_PROTO_PPP 0x2001 /* PPP protocol */ 82 #define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 83 #define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 84 #define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 85 #define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 86 #define IF_PROTO_X25 0x2006 /* X.25 */ 87 #define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 88 #define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 89 #define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 90 #define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 91 #define IF_PROTO_FR_ETH_PVC 0x200B 92 #define IF_PROTO_RAW 0x200C /* RAW Socket */ 93 94 /* RFC 2863 operational status */ 95 enum { 96 IF_OPER_UNKNOWN, 97 IF_OPER_NOTPRESENT, 98 IF_OPER_DOWN, 99 IF_OPER_LOWERLAYERDOWN, 100 IF_OPER_TESTING, 101 IF_OPER_DORMANT, 102 IF_OPER_UP, 103 }; 104 105 /* link modes */ 106 enum { 107 IF_LINK_MODE_DEFAULT, 108 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ 109 }; 110 111 /* 112 * Device mapping structure. I'd just gone off and designed a 113 * beautiful scheme using only loadable modules with arguments 114 * for driver options and along come the PCMCIA people 8) 115 * 116 * Ah well. The get() side of this is good for WDSETUP, and it'll 117 * be handy for debugging things. The set side is fine for now and 118 * being very small might be worth keeping for clean configuration. 119 */ 120 121 struct ifmap 122 { 123 unsigned long mem_start; 124 unsigned long mem_end; 125 unsigned short base_addr; 126 unsigned char irq; 127 unsigned char dma; 128 unsigned char port; 129 /* 3 bytes spare */ 130 }; 131 132 struct if_settings 133 { 134 unsigned int type; /* Type of physical device or protocol */ 135 unsigned int size; /* Size of the data allocated by the caller */ 136 union { 137 /* {atm/eth/dsl}_settings anyone ? */ 138 raw_hdlc_proto *raw_hdlc; 139 cisco_proto *cisco; 140 fr_proto *fr; 141 fr_proto_pvc *fr_pvc; 142 fr_proto_pvc_info *fr_pvc_info; 143 144 /* interface settings */ 145 sync_serial_settings *sync; 146 te1_settings *te1; 147 } ifs_ifsu; 148 }; 149 150 /* 151 * Interface request structure used for socket 152 * ioctl's. All interface ioctl's must have parameter 153 * definitions which begin with ifr_name. The 154 * remainder may be interface specific. 155 */ 156 157 struct ifreq 158 { 159 #define IFHWADDRLEN 6 160 union 161 { 162 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 163 } ifr_ifrn; 164 165 union { 166 struct sockaddr ifru_addr; 167 struct sockaddr ifru_dstaddr; 168 struct sockaddr ifru_broadaddr; 169 struct sockaddr ifru_netmask; 170 struct sockaddr ifru_hwaddr; 171 short ifru_flags; 172 int ifru_ivalue; 173 int ifru_mtu; 174 struct ifmap ifru_map; 175 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 176 char ifru_newname[IFNAMSIZ]; 177 void * ifru_data; 178 struct if_settings ifru_settings; 179 } ifr_ifru; 180 }; 181 182 #define ifr_name ifr_ifrn.ifrn_name /* interface name */ 183 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 184 #define ifr_addr ifr_ifru.ifru_addr /* address */ 185 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 186 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 187 #define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 188 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 189 #define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 190 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 191 #define ifr_map ifr_ifru.ifru_map /* device map */ 192 #define ifr_slave ifr_ifru.ifru_slave /* slave device */ 193 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 194 #define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 195 #define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 196 #define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 197 #define ifr_newname ifr_ifru.ifru_newname /* New name */ 198 #define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 199 200 /* 201 * Structure used in SIOCGIFCONF request. 202 * Used to retrieve interface configuration 203 * for machine (useful for programs which 204 * must know all networks accessible). 205 */ 206 207 struct ifconf 208 { 209 int ifc_len; /* size of buffer */ 210 union 211 { 212 char *ifcu_buf; 213 struct ifreq *ifcu_req; 214 } ifc_ifcu; 215 }; 216 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 217 #define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 218 219 #endif /* _LINUX_IF_H */ 220