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 (at) 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_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|\ 53 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT) 54 55 /* Private (from user) interface flags (netdevice->priv_flags). */ 56 #define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */ 57 #define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */ 58 #define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */ 59 #define IFF_MASTER_8023AD 0x8 /* bonding master, 802.3ad. */ 60 #define IFF_MASTER_ALB 0x10 /* bonding master, balance-alb. */ 61 #define IFF_BONDING 0x20 /* bonding master or slave */ 62 #define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */ 63 64 #define IF_GET_IFACE 0x0001 /* for querying only */ 65 #define IF_GET_PROTO 0x0002 66 67 /* For definitions see hdlc.h */ 68 #define IF_IFACE_V35 0x1000 /* V.35 serial interface */ 69 #define IF_IFACE_V24 0x1001 /* V.24 serial interface */ 70 #define IF_IFACE_X21 0x1002 /* X.21 serial interface */ 71 #define IF_IFACE_T1 0x1003 /* T1 telco serial interface */ 72 #define IF_IFACE_E1 0x1004 /* E1 telco serial interface */ 73 #define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */ 74 #define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */ 75 76 /* For definitions see hdlc.h */ 77 #define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */ 78 #define IF_PROTO_PPP 0x2001 /* PPP protocol */ 79 #define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */ 80 #define IF_PROTO_FR 0x2003 /* Frame Relay protocol */ 81 #define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */ 82 #define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */ 83 #define IF_PROTO_X25 0x2006 /* X.25 */ 84 #define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */ 85 #define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */ 86 #define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */ 87 #define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */ 88 #define IF_PROTO_FR_ETH_PVC 0x200B 89 #define IF_PROTO_RAW 0x200C /* RAW Socket */ 90 91 /* RFC 2863 operational status */ 92 enum { 93 IF_OPER_UNKNOWN, 94 IF_OPER_NOTPRESENT, 95 IF_OPER_DOWN, 96 IF_OPER_LOWERLAYERDOWN, 97 IF_OPER_TESTING, 98 IF_OPER_DORMANT, 99 IF_OPER_UP, 100 }; 101 102 /* link modes */ 103 enum { 104 IF_LINK_MODE_DEFAULT, 105 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ 106 }; 107 108 /* 109 * Device mapping structure. I'd just gone off and designed a 110 * beautiful scheme using only loadable modules with arguments 111 * for driver options and along come the PCMCIA people 8) 112 * 113 * Ah well. The get() side of this is good for WDSETUP, and it'll 114 * be handy for debugging things. The set side is fine for now and 115 * being very small might be worth keeping for clean configuration. 116 */ 117 118 struct ifmap 119 { 120 unsigned long mem_start; 121 unsigned long mem_end; 122 unsigned short base_addr; 123 unsigned char irq; 124 unsigned char dma; 125 unsigned char port; 126 /* 3 bytes spare */ 127 }; 128 129 struct if_settings 130 { 131 unsigned int type; /* Type of physical device or protocol */ 132 unsigned int size; /* Size of the data allocated by the caller */ 133 union { 134 /* {atm/eth/dsl}_settings anyone ? */ 135 raw_hdlc_proto *raw_hdlc; 136 cisco_proto *cisco; 137 fr_proto *fr; 138 fr_proto_pvc *fr_pvc; 139 fr_proto_pvc_info *fr_pvc_info; 140 141 /* interface settings */ 142 sync_serial_settings *sync; 143 te1_settings *te1; 144 } ifs_ifsu; 145 }; 146 147 /* 148 * Interface request structure used for socket 149 * ioctl's. All interface ioctl's must have parameter 150 * definitions which begin with ifr_name. The 151 * remainder may be interface specific. 152 */ 153 154 struct ifreq 155 { 156 #define IFHWADDRLEN 6 157 union 158 { 159 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 160 } ifr_ifrn; 161 162 union { 163 struct sockaddr ifru_addr; 164 struct sockaddr ifru_dstaddr; 165 struct sockaddr ifru_broadaddr; 166 struct sockaddr ifru_netmask; 167 struct sockaddr ifru_hwaddr; 168 short ifru_flags; 169 int ifru_ivalue; 170 int ifru_mtu; 171 struct ifmap ifru_map; 172 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 173 char ifru_newname[IFNAMSIZ]; 174 void * ifru_data; 175 struct if_settings ifru_settings; 176 } ifr_ifru; 177 }; 178 179 #define ifr_name ifr_ifrn.ifrn_name /* interface name */ 180 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 181 #define ifr_addr ifr_ifru.ifru_addr /* address */ 182 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */ 183 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 184 #define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */ 185 #define ifr_flags ifr_ifru.ifru_flags /* flags */ 186 #define ifr_metric ifr_ifru.ifru_ivalue /* metric */ 187 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 188 #define ifr_map ifr_ifru.ifru_map /* device map */ 189 #define ifr_slave ifr_ifru.ifru_slave /* slave device */ 190 #define ifr_data ifr_ifru.ifru_data /* for use by interface */ 191 #define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */ 192 #define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */ 193 #define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */ 194 #define ifr_newname ifr_ifru.ifru_newname /* New name */ 195 #define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/ 196 197 /* 198 * Structure used in SIOCGIFCONF request. 199 * Used to retrieve interface configuration 200 * for machine (useful for programs which 201 * must know all networks accessible). 202 */ 203 204 struct ifconf 205 { 206 int ifc_len; /* size of buffer */ 207 union 208 { 209 char *ifcu_buf; 210 struct ifreq *ifcu_req; 211 } ifc_ifcu; 212 }; 213 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 214 #define ifc_req ifc_ifcu.ifcu_req /* array of structures */ 215 216 #endif /* _LINUX_IF_H */ 217
