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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Jesper Juhl02c30a82005-05-05 16:16:16 -070011 * Ross Biro
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 * 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
Stephen Hemminger0b815a12008-09-22 21:28:11 -070027#define IFALIASZ 256
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#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 */
Stefan Rompfb00055a2006-03-20 17:09:11 -080037#define IFF_RUNNING 0x40 /* interface RFC2863 OPER_UP */
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#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
Stefan Rompfb00055a2006-03-20 17:09:11 -080051#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
52#define IFF_DORMANT 0x20000 /* driver signals dormant */
53
Oliver Hartkoppcd05acf2007-12-16 15:59:24 -080054#define IFF_ECHO 0x40000 /* echo sent packets */
55
56#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
Stefan Rompfb00055a2006-03-20 17:09:11 -080057 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059/* 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. */
Jay Vosburgh8f903c72006-02-21 16:36:44 -080062#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. */
Jay Vosburgh0b680e72006-09-22 21:54:10 -070065#define IFF_BONDING 0x20 /* bonding master or slave */
Jay Vosburghf5b2b962006-09-22 21:54:53 -070066#define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */
Fred L. Templinc7dc89c2007-11-29 22:11:40 +110067#define IFF_ISATAP 0x80 /* ISATAP interface (RFC4214) */
Jay Vosburgh6cf3f412008-11-03 18:16:50 -080068#define IFF_MASTER_ARPMON 0x100 /* bonding master, ARP mon in use */
Krzysztof HaƂasa7cdc15f2009-01-08 19:46:54 +010069#define IFF_WAN_HDLC 0x200 /* WAN HDLC device */
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
71#define IF_GET_IFACE 0x0001 /* for querying only */
72#define IF_GET_PROTO 0x0002
73
74/* For definitions see hdlc.h */
75#define IF_IFACE_V35 0x1000 /* V.35 serial interface */
76#define IF_IFACE_V24 0x1001 /* V.24 serial interface */
77#define IF_IFACE_X21 0x1002 /* X.21 serial interface */
78#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */
79#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */
80#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */
81#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */
82
83/* For definitions see hdlc.h */
84#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */
85#define IF_PROTO_PPP 0x2001 /* PPP protocol */
86#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */
87#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */
88#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */
89#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */
90#define IF_PROTO_X25 0x2006 /* X.25 */
91#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */
92#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */
93#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */
94#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */
95#define IF_PROTO_FR_ETH_PVC 0x200B
96#define IF_PROTO_RAW 0x200C /* RAW Socket */
97
Stefan Rompfb00055a2006-03-20 17:09:11 -080098/* RFC 2863 operational status */
99enum {
100 IF_OPER_UNKNOWN,
101 IF_OPER_NOTPRESENT,
102 IF_OPER_DOWN,
103 IF_OPER_LOWERLAYERDOWN,
104 IF_OPER_TESTING,
105 IF_OPER_DORMANT,
106 IF_OPER_UP,
107};
108
109/* link modes */
110enum {
111 IF_LINK_MODE_DEFAULT,
112 IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */
113};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115/*
116 * Device mapping structure. I'd just gone off and designed a
117 * beautiful scheme using only loadable modules with arguments
118 * for driver options and along come the PCMCIA people 8)
119 *
120 * Ah well. The get() side of this is good for WDSETUP, and it'll
121 * be handy for debugging things. The set side is fine for now and
122 * being very small might be worth keeping for clean configuration.
123 */
124
125struct ifmap
126{
127 unsigned long mem_start;
128 unsigned long mem_end;
129 unsigned short base_addr;
130 unsigned char irq;
131 unsigned char dma;
132 unsigned char port;
133 /* 3 bytes spare */
134};
135
136struct if_settings
137{
138 unsigned int type; /* Type of physical device or protocol */
139 unsigned int size; /* Size of the data allocated by the caller */
140 union {
141 /* {atm/eth/dsl}_settings anyone ? */
142 raw_hdlc_proto __user *raw_hdlc;
143 cisco_proto __user *cisco;
144 fr_proto __user *fr;
145 fr_proto_pvc __user *fr_pvc;
146 fr_proto_pvc_info __user *fr_pvc_info;
147
148 /* interface settings */
149 sync_serial_settings __user *sync;
150 te1_settings __user *te1;
151 } ifs_ifsu;
152};
153
154/*
155 * Interface request structure used for socket
156 * ioctl's. All interface ioctl's must have parameter
157 * definitions which begin with ifr_name. The
158 * remainder may be interface specific.
159 */
160
161struct ifreq
162{
163#define IFHWADDRLEN 6
164 union
165 {
166 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
167 } ifr_ifrn;
168
169 union {
170 struct sockaddr ifru_addr;
171 struct sockaddr ifru_dstaddr;
172 struct sockaddr ifru_broadaddr;
173 struct sockaddr ifru_netmask;
174 struct sockaddr ifru_hwaddr;
175 short ifru_flags;
176 int ifru_ivalue;
177 int ifru_mtu;
178 struct ifmap ifru_map;
179 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
180 char ifru_newname[IFNAMSIZ];
181 void __user * ifru_data;
182 struct if_settings ifru_settings;
183 } ifr_ifru;
184};
185
186#define ifr_name ifr_ifrn.ifrn_name /* interface name */
187#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
188#define ifr_addr ifr_ifru.ifru_addr /* address */
189#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
190#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
191#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
192#define ifr_flags ifr_ifru.ifru_flags /* flags */
193#define ifr_metric ifr_ifru.ifru_ivalue /* metric */
194#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
195#define ifr_map ifr_ifru.ifru_map /* device map */
196#define ifr_slave ifr_ifru.ifru_slave /* slave device */
197#define ifr_data ifr_ifru.ifru_data /* for use by interface */
198#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */
199#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */
200#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */
201#define ifr_newname ifr_ifru.ifru_newname /* New name */
202#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/
203
204/*
205 * Structure used in SIOCGIFCONF request.
206 * Used to retrieve interface configuration
207 * for machine (useful for programs which
208 * must know all networks accessible).
209 */
210
211struct ifconf
212{
213 int ifc_len; /* size of buffer */
214 union
215 {
216 char __user *ifcu_buf;
217 struct ifreq __user *ifcu_req;
218 } ifc_ifcu;
219};
220#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
221#define ifc_req ifc_ifcu.ifcu_req /* array of structures */
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223#endif /* _LINUX_IF_H */