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