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, <bir7@leland.Stanford.Edu> 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 /* resources allocated */ 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_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_MASTER|IFF_SLAVE|IFF_RUNNING) 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 /* Private (from user) interface flags (netdevice->priv_flags). */ 52 #define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */ 53 54 55 #define IF_GET_IFACE 0x0001 /* for querying only */ 56 #define IF_GET_PROTO 0x0002 57 58 /* For definitions see hdlc.h */ 59 #define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 60 #define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 61 #define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 62 #define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 63 #define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 64 #define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 65 #define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 66 67 /* For definitions see hdlc.h */ 68 #define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 69 #define IF_PROTO_PPP 0x2001 /* PPP protocol */ 70 #define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 71 #define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 72 #define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 73 #define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 74 #define IF_PROTO_X25 0x2006 /* X.25 */ 75 #define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 76 #define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 77 #define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 78 #define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 79 #define IF_PROTO_FR_ETH_PVC 0x200B 80 #define IF_PROTO_RAW 0x200C /* RAW Socket */ 81 82 83 /* 84 * Device mapping structure. I'd just gone off and designed a 85 * beautiful scheme using only loadable modules with arguments 86 * for driver options and along come the PCMCIA people 8) 87 * 88 * Ah well. The get() side of this is good for WDSETUP, and it'll 89 * be handy for debugging things. The set side is fine for now and 90 * being very small might be worth keeping for clean configuration. 91 */ 92 93 struct ifmap 94 { 95 unsigned long mem_start; 96 unsigned long mem_end; 97 unsigned short base_addr; 98 unsigned char irq; 99 unsigned char dma; 100 unsigned char port; 101 /* 3 bytes spare */ 102 }; 103 104 struct if_settings 105 { 106 unsigned int type; /* Type of physical device or protocol */ 107 unsigned int size; /* Size of the data allocated by the caller */ 108 union { 109 /* {atm/eth/dsl}_settings anyone ? */ 110 raw_hdlc_proto *raw_hdlc; 111 cisco_proto *cisco; 112 fr_proto *fr; 113 fr_proto_pvc *fr_pvc; 114 fr_proto_pvc_info *fr_pvc_info; 115 116 /* interface settings */ 117 sync_serial_settings *sync; 118 te1_settings *te1; 119 } ifs_ifsu; 120 }; 121 122 /* 123 * Interface request structure used for socket 124 * ioctl's. All interface ioctl's must have parameter 125 * definitions which begin with ifr_name. The 126 * remainder may be interface specific. 127 */ 128 129 struct ifreq 130 { 131 #define IFHWADDRLEN 6 132 union 133 { 134 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 135 } ifr_ifrn; 136 137 union { 138 struct sockaddr ifru_addr; 139 struct sockaddr ifru_dstaddr; 140 struct sockaddr ifru_broadaddr; 141 struct sockaddr ifru_netmask; 142 struct sockaddr ifru_hwaddr; 143 short ifru_flags; 144 int ifru_ivalue; 145 int ifru_mtu; 146 struct ifmap ifru_map; 147 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 148 char ifru_newname[IFNAMSIZ]; 149 char * ifru_data; 150 struct if_settings ifru_settings; 151 } ifr_ifru; 152 }; 153 154 #define ifr_name ifr_ifrn.ifrn_name /* interface name */ 155 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 156 #define ifr_addr ifr_ifru.ifru_addr /* address */ 157 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 158 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 159 #define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 160 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 161 #define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 162 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 163 #define ifr_map ifr_ifru.ifru_map /* device map */ 164 #define ifr_slave ifr_ifru.ifru_slave /* slave device */ 165 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 166 #define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 167 #define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 168 #define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 169 #define ifr_newname ifr_ifru.ifru_newname /* New name */ 170 #define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 171 172 /* 173 * Structure used in SIOCGIFCONF request. 174 * Used to retrieve interface configuration 175 * for machine (useful for programs which 176 * must know all networks accessible). 177 */ 178 179 struct ifconf 180 { 181 int ifc_len; /* size of buffer */ 182 union 183 { 184 char * ifcu_buf; 185 struct ifreq *ifcu_req; 186 } ifc_ifcu; 187 }; 188 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 189 #define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 190 191 192 #endif /* _LINUX_IF_H */ 193