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#define	IFALIASZ	256
28#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	*/
37#define	IFF_RUNNING	0x40		/* interface RFC2863 OPER_UP	*/
38#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
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#define IFF_LOWER_UP	0x10000		/* driver signals L1 up		*/
52#define IFF_DORMANT	0x20000		/* driver signals dormant	*/
53
54#define IFF_ECHO	0x40000		/* echo sent packets		*/
55
56#define IFF_VOLATILE	(IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
57		IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
58
59/* 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.	*/
62#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.	*/
65#define IFF_BONDING	0x20		/* bonding master or slave	*/
66#define IFF_SLAVE_NEEDARP 0x40		/* need ARPs for validation	*/
67#define IFF_ISATAP	0x80		/* ISATAP interface (RFC4214)	*/
68#define IFF_MASTER_ARPMON 0x100		/* bonding master, ARP mon in use */
69#define IFF_WAN_HDLC	0x200		/* WAN HDLC device		*/
70#define IFF_XMIT_DST_RELEASE 0x400	/* dev_hard_start_xmit() is allowed to
71					 * release skb->dst
72					 */
73#define IFF_DONT_BRIDGE 0x800		/* disallow bridging this ether dev */
74#define IFF_DISABLE_NETPOLL	0x1000	/* disable netpoll at run-time */
75#define IFF_MACVLAN_PORT	0x2000	/* device used as macvlan port */
76#define IFF_BRIDGE_PORT	0x4000		/* device used as bridge port */
77#define IFF_OVS_DATAPATH	0x8000	/* device used as Open vSwitch
78					 * datapath port */
79#define IFF_TX_SKB_SHARING	0x10000	/* The interface supports sharing
80					 * skbs on transmit */
81#define IFF_UNICAST_FLT	0x20000		/* Supports unicast filtering	*/
82#define IFF_TEAM_PORT	0x40000		/* device used as team port */
83#define IFF_SUPP_NOFCS	0x80000		/* device supports sending custom FCS */
84#define IFF_LIVE_ADDR_CHANGE 0x100000	/* device supports hardware address
85					 * change when it's running */
86#define IFF_MACVLAN 0x200000		/* Macvlan device */
87
88
89#define IF_GET_IFACE	0x0001		/* for querying only */
90#define IF_GET_PROTO	0x0002
91
92/* For definitions see hdlc.h */
93#define IF_IFACE_V35	0x1000		/* V.35 serial interface	*/
94#define IF_IFACE_V24	0x1001		/* V.24 serial interface	*/
95#define IF_IFACE_X21	0x1002		/* X.21 serial interface	*/
96#define IF_IFACE_T1	0x1003		/* T1 telco serial interface	*/
97#define IF_IFACE_E1	0x1004		/* E1 telco serial interface	*/
98#define IF_IFACE_SYNC_SERIAL 0x1005	/* can't be set by software	*/
99#define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
100
101/* For definitions see hdlc.h */
102#define IF_PROTO_HDLC	0x2000		/* raw HDLC protocol		*/
103#define IF_PROTO_PPP	0x2001		/* PPP protocol			*/
104#define IF_PROTO_CISCO	0x2002		/* Cisco HDLC protocol		*/
105#define IF_PROTO_FR	0x2003		/* Frame Relay protocol		*/
106#define IF_PROTO_FR_ADD_PVC 0x2004	/*    Create FR PVC		*/
107#define IF_PROTO_FR_DEL_PVC 0x2005	/*    Delete FR PVC		*/
108#define IF_PROTO_X25	0x2006		/* X.25				*/
109#define IF_PROTO_HDLC_ETH 0x2007	/* raw HDLC, Ethernet emulation	*/
110#define IF_PROTO_FR_ADD_ETH_PVC 0x2008	/*  Create FR Ethernet-bridged PVC */
111#define IF_PROTO_FR_DEL_ETH_PVC 0x2009	/*  Delete FR Ethernet-bridged PVC */
112#define IF_PROTO_FR_PVC	0x200A		/* for reading PVC status	*/
113#define IF_PROTO_FR_ETH_PVC 0x200B
114#define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
115
116/* RFC 2863 operational status */
117enum {
118	IF_OPER_UNKNOWN,
119	IF_OPER_NOTPRESENT,
120	IF_OPER_DOWN,
121	IF_OPER_LOWERLAYERDOWN,
122	IF_OPER_TESTING,
123	IF_OPER_DORMANT,
124	IF_OPER_UP,
125};
126
127/* link modes */
128enum {
129	IF_LINK_MODE_DEFAULT,
130	IF_LINK_MODE_DORMANT,	/* limit upward transition to dormant */
131};
132
133/*
134 *	Device mapping structure. I'd just gone off and designed a
135 *	beautiful scheme using only loadable modules with arguments
136 *	for driver options and along come the PCMCIA people 8)
137 *
138 *	Ah well. The get() side of this is good for WDSETUP, and it'll
139 *	be handy for debugging things. The set side is fine for now and
140 *	being very small might be worth keeping for clean configuration.
141 */
142
143struct ifmap {
144	unsigned long mem_start;
145	unsigned long mem_end;
146	unsigned short base_addr;
147	unsigned char irq;
148	unsigned char dma;
149	unsigned char port;
150	/* 3 bytes spare */
151};
152
153struct if_settings {
154	unsigned int type;	/* Type of physical device or protocol */
155	unsigned int size;	/* Size of the data allocated by the caller */
156	union {
157		/* {atm/eth/dsl}_settings anyone ? */
158		raw_hdlc_proto		__user *raw_hdlc;
159		cisco_proto		__user *cisco;
160		fr_proto		__user *fr;
161		fr_proto_pvc		__user *fr_pvc;
162		fr_proto_pvc_info	__user *fr_pvc_info;
163
164		/* interface settings */
165		sync_serial_settings	__user *sync;
166		te1_settings		__user *te1;
167	} ifs_ifsu;
168};
169
170/*
171 * Interface request structure used for socket
172 * ioctl's.  All interface ioctl's must have parameter
173 * definitions which begin with ifr_name.  The
174 * remainder may be interface specific.
175 */
176
177struct ifreq {
178#define IFHWADDRLEN	6
179	union
180	{
181		char	ifrn_name[IFNAMSIZ];		/* if name, e.g. "en0" */
182	} ifr_ifrn;
183
184	union {
185		struct	sockaddr ifru_addr;
186		struct	sockaddr ifru_dstaddr;
187		struct	sockaddr ifru_broadaddr;
188		struct	sockaddr ifru_netmask;
189		struct  sockaddr ifru_hwaddr;
190		short	ifru_flags;
191		int	ifru_ivalue;
192		int	ifru_mtu;
193		struct  ifmap ifru_map;
194		char	ifru_slave[IFNAMSIZ];	/* Just fits the size */
195		char	ifru_newname[IFNAMSIZ];
196		void __user *	ifru_data;
197		struct	if_settings ifru_settings;
198	} ifr_ifru;
199};
200
201#define ifr_name	ifr_ifrn.ifrn_name	/* interface name 	*/
202#define ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address 		*/
203#define	ifr_addr	ifr_ifru.ifru_addr	/* address		*/
204#define	ifr_dstaddr	ifr_ifru.ifru_dstaddr	/* other end of p-p lnk	*/
205#define	ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address	*/
206#define	ifr_netmask	ifr_ifru.ifru_netmask	/* interface net mask	*/
207#define	ifr_flags	ifr_ifru.ifru_flags	/* flags		*/
208#define	ifr_metric	ifr_ifru.ifru_ivalue	/* metric		*/
209#define	ifr_mtu		ifr_ifru.ifru_mtu	/* mtu			*/
210#define ifr_map		ifr_ifru.ifru_map	/* device map		*/
211#define ifr_slave	ifr_ifru.ifru_slave	/* slave device		*/
212#define	ifr_data	ifr_ifru.ifru_data	/* for use by interface	*/
213#define ifr_ifindex	ifr_ifru.ifru_ivalue	/* interface index	*/
214#define ifr_bandwidth	ifr_ifru.ifru_ivalue    /* link bandwidth	*/
215#define ifr_qlen	ifr_ifru.ifru_ivalue	/* Queue length 	*/
216#define ifr_newname	ifr_ifru.ifru_newname	/* New name		*/
217#define ifr_settings	ifr_ifru.ifru_settings	/* Device/proto settings*/
218
219/*
220 * Structure used in SIOCGIFCONF request.
221 * Used to retrieve interface configuration
222 * for machine (useful for programs which
223 * must know all networks accessible).
224 */
225
226struct ifconf  {
227	int	ifc_len;			/* size of buffer	*/
228	union {
229		char __user *ifcu_buf;
230		struct ifreq __user *ifcu_req;
231	} ifc_ifcu;
232};
233#define	ifc_buf	ifc_ifcu.ifcu_buf		/* buffer address	*/
234#define	ifc_req	ifc_ifcu.ifcu_req		/* array of structures	*/
235
236#endif /* _LINUX_IF_H */
237