[thirdparty/lldpd.git] / include / linux / if.h

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Global definitions for the INET interface module.
 *
 * Version:	@(#)if.h	1.0.2	04/18/93
 *
 * Authors:	Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
 *		Ross Biro
 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_IF_H
#define _LINUX_IF_H

#include <linux/libc-compat.h>          /* for compatibility with glibc */
#include <linux/types.h>		/* for "__kernel_caddr_t" et al	*/
#include <linux/socket.h>		/* for "struct sockaddr" et al	*/
		/* for "__user" et al           */

#include <sys/socket.h>			/* for struct sockaddr.		*/

#if __UAPI_DEF_IF_IFNAMSIZ
#define	IFNAMSIZ	16
#endif /* __UAPI_DEF_IF_IFNAMSIZ */
#define	IFALIASZ	256
#include <linux/hdlc/ioctl.h>

/* For glibc compatibility. An empty enum does not compile. */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || \
    __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
/**
 * enum net_device_flags - &struct net_device flags
 *
 * These are the &struct net_device flags, they can be set by drivers, the
 * kernel and some can be triggered by userspace. Userspace can query and
 * set these flags using userspace utilities but there is also a sysfs
 * entry available for all dev flags which can be queried and set. These flags
 * are shared for all types of net_devices. The sysfs entries are available
 * via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs
 * are annotated below, note that only a few flags can be toggled and some
 * other flags are always preserved from the original net_device flags
 * even if you try to set them via sysfs. Flags which are always preserved
 * are kept under the flag grouping @IFF_VOLATILE. Flags which are __volatile__
 * are annotated below as such.
 *
 * You should have a pretty good reason to be extending these flags.
 *
 * @IFF_UP: interface is up. Can be toggled through sysfs.
 * @IFF_BROADCAST: broadcast address valid. Volatile.
 * @IFF_DEBUG: turn on debugging. Can be toggled through sysfs.
 * @IFF_LOOPBACK: is a loopback net. Volatile.
 * @IFF_POINTOPOINT: interface is has p-p link. Volatile.
 * @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs.
 *	Volatile.
 * @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile.
 * @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile.
 * @IFF_PROMISC: receive all packets. Can be toggled through sysfs.
 * @IFF_ALLMULTI: receive all multicast packets. Can be toggled through
 *	sysfs.
 * @IFF_MASTER: master of a load balancer. Volatile.
 * @IFF_SLAVE: slave of a load balancer. Volatile.
 * @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs.
 * @IFF_PORTSEL: can set media type. Can be toggled through sysfs.
 * @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs.
 * @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled
 *	through sysfs.
 * @IFF_LOWER_UP: driver signals L1 up. Volatile.
 * @IFF_DORMANT: driver signals dormant. Volatile.
 * @IFF_ECHO: echo sent packets. Volatile.
 */
enum net_device_flags {
/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
	IFF_UP				= 1<<0,  /* sysfs */
	IFF_BROADCAST			= 1<<1,  /* __volatile__ */
	IFF_DEBUG			= 1<<2,  /* sysfs */
	IFF_LOOPBACK			= 1<<3,  /* __volatile__ */
	IFF_POINTOPOINT			= 1<<4,  /* __volatile__ */
	IFF_NOTRAILERS			= 1<<5,  /* sysfs */
	IFF_RUNNING			= 1<<6,  /* __volatile__ */
	IFF_NOARP			= 1<<7,  /* sysfs */
	IFF_PROMISC			= 1<<8,  /* sysfs */
	IFF_ALLMULTI			= 1<<9,  /* sysfs */
	IFF_MASTER			= 1<<10, /* __volatile__ */
	IFF_SLAVE			= 1<<11, /* __volatile__ */
	IFF_MULTICAST			= 1<<12, /* sysfs */
	IFF_PORTSEL			= 1<<13, /* sysfs */
	IFF_AUTOMEDIA			= 1<<14, /* sysfs */
	IFF_DYNAMIC			= 1<<15, /* sysfs */
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
	IFF_LOWER_UP			= 1<<16, /* __volatile__ */
	IFF_DORMANT			= 1<<17, /* __volatile__ */
	IFF_ECHO			= 1<<18, /* __volatile__ */
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
};
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */

/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
#define IFF_UP				IFF_UP
#define IFF_BROADCAST			IFF_BROADCAST
#define IFF_DEBUG			IFF_DEBUG
#define IFF_LOOPBACK			IFF_LOOPBACK
#define IFF_POINTOPOINT			IFF_POINTOPOINT
#define IFF_NOTRAILERS			IFF_NOTRAILERS
#define IFF_RUNNING			IFF_RUNNING
#define IFF_NOARP			IFF_NOARP
#define IFF_PROMISC			IFF_PROMISC
#define IFF_ALLMULTI			IFF_ALLMULTI
#define IFF_MASTER			IFF_MASTER
#define IFF_SLAVE			IFF_SLAVE
#define IFF_MULTICAST			IFF_MULTICAST
#define IFF_PORTSEL			IFF_PORTSEL
#define IFF_AUTOMEDIA			IFF_AUTOMEDIA
#define IFF_DYNAMIC			IFF_DYNAMIC
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */

#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
#define IFF_LOWER_UP			IFF_LOWER_UP
#define IFF_DORMANT			IFF_DORMANT
#define IFF_ECHO			IFF_ECHO
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */

#define IFF_VOLATILE	(IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
		IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)

#define IF_GET_IFACE	0x0001		/* for querying only */
#define IF_GET_PROTO	0x0002

/* For definitions see hdlc.h */
#define IF_IFACE_V35	0x1000		/* V.35 serial interface	*/
#define IF_IFACE_V24	0x1001		/* V.24 serial interface	*/
#define IF_IFACE_X21	0x1002		/* X.21 serial interface	*/
#define IF_IFACE_T1	0x1003		/* T1 telco serial interface	*/
#define IF_IFACE_E1	0x1004		/* E1 telco serial interface	*/
#define IF_IFACE_SYNC_SERIAL 0x1005	/* can't be set by software	*/
#define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */

/* For definitions see hdlc.h */
#define IF_PROTO_HDLC	0x2000		/* raw HDLC protocol		*/
#define IF_PROTO_PPP	0x2001		/* PPP protocol			*/
#define IF_PROTO_CISCO	0x2002		/* Cisco HDLC protocol		*/
#define IF_PROTO_FR	0x2003		/* Frame Relay protocol		*/
#define IF_PROTO_FR_ADD_PVC 0x2004	/*    Create FR PVC		*/
#define IF_PROTO_FR_DEL_PVC 0x2005	/*    Delete FR PVC		*/
#define IF_PROTO_X25	0x2006		/* X.25				*/
#define IF_PROTO_HDLC_ETH 0x2007	/* raw HDLC, Ethernet emulation	*/
#define IF_PROTO_FR_ADD_ETH_PVC 0x2008	/*  Create FR Ethernet-bridged PVC */
#define IF_PROTO_FR_DEL_ETH_PVC 0x2009	/*  Delete FR Ethernet-bridged PVC */
#define IF_PROTO_FR_PVC	0x200A		/* for reading PVC status	*/
#define IF_PROTO_FR_ETH_PVC 0x200B
#define IF_PROTO_RAW    0x200C          /* RAW Socket                   */

/* RFC 2863 operational status */
enum {
	IF_OPER_UNKNOWN,
	IF_OPER_NOTPRESENT,
	IF_OPER_DOWN,
	IF_OPER_LOWERLAYERDOWN,
	IF_OPER_TESTING,
	IF_OPER_DORMANT,
	IF_OPER_UP,
};

/* link modes */
enum {
	IF_LINK_MODE_DEFAULT,
	IF_LINK_MODE_DORMANT,	/* limit upward transition to dormant */
};

/*
 *	Device mapping structure. I'd just gone off and designed a 
 *	beautiful scheme using only loadable modules with arguments
 *	for driver options and along come the PCMCIA people 8)
 *
 *	Ah well. The get() side of this is good for WDSETUP, and it'll
 *	be handy for debugging things. The set side is fine for now and
 *	being very small might be worth keeping for clean configuration.
 */

/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_IFMAP
struct ifmap {
	unsigned long mem_start;
	unsigned long mem_end;
	unsigned short base_addr; 
	unsigned char irq;
	unsigned char dma;
	unsigned char port;
	/* 3 bytes spare */
};
#endif /* __UAPI_DEF_IF_IFMAP */

struct if_settings {
	unsigned int type;	/* Type of physical device or protocol */
	unsigned int size;	/* Size of the data allocated by the caller */
	union {
		/* {atm/eth/dsl}_settings anyone ? */
		raw_hdlc_proto		*raw_hdlc;
		cisco_proto		*cisco;
		fr_proto		*fr;
		fr_proto_pvc		*fr_pvc;
		fr_proto_pvc_info	*fr_pvc_info;

		/* interface settings */
		sync_serial_settings	*sync;
		te1_settings		*te1;
	} ifs_ifsu;
};

/*
 * Interface request structure used for socket
 * ioctl's.  All interface ioctl's must have parameter
 * definitions which begin with ifr_name.  The
 * remainder may be interface specific.
 */

/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_IFREQ
struct ifreq {
#define IFHWADDRLEN	6
	union
	{
		char	ifrn_name[IFNAMSIZ];		/* if name, e.g. "en0" */
	} ifr_ifrn;
	
	union {
		struct	sockaddr ifru_addr;
		struct	sockaddr ifru_dstaddr;
		struct	sockaddr ifru_broadaddr;
		struct	sockaddr ifru_netmask;
		struct  sockaddr ifru_hwaddr;
		short	ifru_flags;
		int	ifru_ivalue;
		int	ifru_mtu;
		struct  ifmap ifru_map;
		char	ifru_slave[IFNAMSIZ];	/* Just fits the size */
		char	ifru_newname[IFNAMSIZ];
		void *	ifru_data;
		struct	if_settings ifru_settings;
	} ifr_ifru;
};
#endif /* __UAPI_DEF_IF_IFREQ */

#define ifr_name	ifr_ifrn.ifrn_name	/* interface name 	*/
#define ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address 		*/
#define	ifr_addr	ifr_ifru.ifru_addr	/* address		*/
#define	ifr_dstaddr	ifr_ifru.ifru_dstaddr	/* other end of p-p lnk	*/
#define	ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address	*/
#define	ifr_netmask	ifr_ifru.ifru_netmask	/* interface net mask	*/
#define	ifr_flags	ifr_ifru.ifru_flags	/* flags		*/
#define	ifr_metric	ifr_ifru.ifru_ivalue	/* metric		*/
#define	ifr_mtu		ifr_ifru.ifru_mtu	/* mtu			*/
#define ifr_map		ifr_ifru.ifru_map	/* device map		*/
#define ifr_slave	ifr_ifru.ifru_slave	/* slave device		*/
#define	ifr_data	ifr_ifru.ifru_data	/* for use by interface	*/
#define ifr_ifindex	ifr_ifru.ifru_ivalue	/* interface index	*/
#define ifr_bandwidth	ifr_ifru.ifru_ivalue    /* link bandwidth	*/
#define ifr_qlen	ifr_ifru.ifru_ivalue	/* Queue length 	*/
#define ifr_newname	ifr_ifru.ifru_newname	/* New name		*/
#define ifr_settings	ifr_ifru.ifru_settings	/* Device/proto settings*/

/*
 * Structure used in SIOCGIFCONF request.
 * Used to retrieve interface configuration
 * for machine (useful for programs which
 * must know all networks accessible).
 */

/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_IFCONF
struct ifconf  {
	int	ifc_len;			/* size of buffer	*/
	union {
		char *ifcu_buf;
		struct ifreq *ifcu_req;
	} ifc_ifcu;
};
#endif /* __UAPI_DEF_IF_IFCONF */

#define	ifc_buf	ifc_ifcu.ifcu_buf		/* buffer address	*/
#define	ifc_req	ifc_ifcu.ifcu_req		/* array of structures	*/

#endif /* _LINUX_IF_H */
Commit	Line	Data
a192a2e9	1	/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2516cfb1 VB	2	/*
	3	* INET An implementation of the TCP/IP protocol suite for the LINUX
	4	* operating system. INET is implemented using the BSD Socket
	5	* interface as the means of communication with the user level.
	6	*
	7	* Global definitions for the INET interface module.
	8	*
	9	* Version: @(#)if.h 1.0.2 04/18/93
	10	*
	11	* Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
	12	* Ross Biro
	13	* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
	14	*
	15	* This program is free software; you can redistribute it and/or
	16	* modify it under the terms of the GNU General Public License
	17	* as published by the Free Software Foundation; either version
	18	* 2 of the License, or (at your option) any later version.
	19	*/
	20	#ifndef _LINUX_IF_H
	21	#define _LINUX_IF_H
	22
a192a2e9	23	#include <linux/libc-compat.h> /* for compatibility with glibc */
2516cfb1 VB	24	#include <linux/types.h> /* for "__kernel_caddr_t" et al */
	25	#include <linux/socket.h> /* for "struct sockaddr" et al */
	26	/* for "__user" et al */
	27
a192a2e9 VB	28	#include <sys/socket.h> /* for struct sockaddr. */
	29
	30	#if __UAPI_DEF_IF_IFNAMSIZ
2516cfb1	31	#define IFNAMSIZ 16
a192a2e9	32	#endif /* __UAPI_DEF_IF_IFNAMSIZ */
2516cfb1 VB	33	#define IFALIASZ 256
	34	#include <linux/hdlc/ioctl.h>
	35
a192a2e9 VB	36	/* For glibc compatibility. An empty enum does not compile. */
	37	#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 \|\| \
	38	__UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
	39	/**
	40	* enum net_device_flags - &struct net_device flags
	41	*
	42	* These are the &struct net_device flags, they can be set by drivers, the
	43	* kernel and some can be triggered by userspace. Userspace can query and
	44	* set these flags using userspace utilities but there is also a sysfs
	45	* entry available for all dev flags which can be queried and set. These flags
	46	* are shared for all types of net_devices. The sysfs entries are available
	47	* via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs
	48	* are annotated below, note that only a few flags can be toggled and some
	49	* other flags are always preserved from the original net_device flags
	50	* even if you try to set them via sysfs. Flags which are always preserved
	51	* are kept under the flag grouping @IFF_VOLATILE. Flags which are __volatile__
	52	* are annotated below as such.
	53	*
	54	* You should have a pretty good reason to be extending these flags.
	55	*
	56	* @IFF_UP: interface is up. Can be toggled through sysfs.
	57	* @IFF_BROADCAST: broadcast address valid. Volatile.
	58	* @IFF_DEBUG: turn on debugging. Can be toggled through sysfs.
	59	* @IFF_LOOPBACK: is a loopback net. Volatile.
	60	* @IFF_POINTOPOINT: interface is has p-p link. Volatile.
	61	* @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs.
	62	* Volatile.
	63	* @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile.
	64	* @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile.
	65	* @IFF_PROMISC: receive all packets. Can be toggled through sysfs.
	66	* @IFF_ALLMULTI: receive all multicast packets. Can be toggled through
	67	* sysfs.
	68	* @IFF_MASTER: master of a load balancer. Volatile.
	69	* @IFF_SLAVE: slave of a load balancer. Volatile.
	70	* @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs.
	71	* @IFF_PORTSEL: can set media type. Can be toggled through sysfs.
	72	* @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs.
	73	* @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled
	74	* through sysfs.
	75	* @IFF_LOWER_UP: driver signals L1 up. Volatile.
	76	* @IFF_DORMANT: driver signals dormant. Volatile.
	77	* @IFF_ECHO: echo sent packets. Volatile.
	78	*/
	79	enum net_device_flags {
	80	/* for compatibility with glibc net/if.h */
	81	#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
	82	IFF_UP = 1<<0, /* sysfs */
	83	IFF_BROADCAST = 1<<1, /* __volatile__ */
	84	IFF_DEBUG = 1<<2, /* sysfs */
	85	IFF_LOOPBACK = 1<<3, /* __volatile__ */
	86	IFF_POINTOPOINT = 1<<4, /* __volatile__ */
	87	IFF_NOTRAILERS = 1<<5, /* sysfs */
	88	IFF_RUNNING = 1<<6, /* __volatile__ */
	89	IFF_NOARP = 1<<7, /* sysfs */
	90	IFF_PROMISC = 1<<8, /* sysfs */
	91	IFF_ALLMULTI = 1<<9, /* sysfs */
	92	IFF_MASTER = 1<<10, /* __volatile__ */
	93	IFF_SLAVE = 1<<11, /* __volatile__ */
	94	IFF_MULTICAST = 1<<12, /* sysfs */
	95	IFF_PORTSEL = 1<<13, /* sysfs */
	96	IFF_AUTOMEDIA = 1<<14, /* sysfs */
	97	IFF_DYNAMIC = 1<<15, /* sysfs */
	98	#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
	99	#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
100	IFF_LOWER_UP = 1<<16, /* __volatile__ */
101	IFF_DORMANT = 1<<17, /* __volatile__ */
102	IFF_ECHO = 1<<18, /* __volatile__ */
103	#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
104	};
105	#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 \|\| __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
2516cfb1	106
a192a2e9 VB	107	/* for compatibility with glibc net/if.h */
	108	#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
	109	#define IFF_UP IFF_UP
	110	#define IFF_BROADCAST IFF_BROADCAST
	111	#define IFF_DEBUG IFF_DEBUG
	112	#define IFF_LOOPBACK IFF_LOOPBACK
	113	#define IFF_POINTOPOINT IFF_POINTOPOINT
	114	#define IFF_NOTRAILERS IFF_NOTRAILERS
	115	#define IFF_RUNNING IFF_RUNNING
	116	#define IFF_NOARP IFF_NOARP
	117	#define IFF_PROMISC IFF_PROMISC
	118	#define IFF_ALLMULTI IFF_ALLMULTI
	119	#define IFF_MASTER IFF_MASTER
	120	#define IFF_SLAVE IFF_SLAVE
	121	#define IFF_MULTICAST IFF_MULTICAST
	122	#define IFF_PORTSEL IFF_PORTSEL
	123	#define IFF_AUTOMEDIA IFF_AUTOMEDIA
	124	#define IFF_DYNAMIC IFF_DYNAMIC
	125	#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
2516cfb1	126
a192a2e9 VB	127	#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
	128	#define IFF_LOWER_UP IFF_LOWER_UP
	129	#define IFF_DORMANT IFF_DORMANT
	130	#define IFF_ECHO IFF_ECHO
	131	#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
2516cfb1 VB	132
	133	#define IFF_VOLATILE (IFF_LOOPBACK\|IFF_POINTOPOINT\|IFF_BROADCAST\|IFF_ECHO\|\
	134	IFF_MASTER\|IFF_SLAVE\|IFF_RUNNING\|IFF_LOWER_UP\|IFF_DORMANT)
	135
2516cfb1 VB	136	#define IF_GET_IFACE 0x0001 /* for querying only */
	137	#define IF_GET_PROTO 0x0002
	138
	139	/* For definitions see hdlc.h */
	140	#define IF_IFACE_V35 0x1000 /* V.35 serial interface */
	141	#define IF_IFACE_V24 0x1001 /* V.24 serial interface */
	142	#define IF_IFACE_X21 0x1002 /* X.21 serial interface */
	143	#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */
	144	#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */
	145	#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */
	146	#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */
	147
	148	/* For definitions see hdlc.h */
	149	#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */
	150	#define IF_PROTO_PPP 0x2001 /* PPP protocol */
	151	#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */
	152	#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */
	153	#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */
	154	#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */
	155	#define IF_PROTO_X25 0x2006 /* X.25 */
	156	#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */
	157	#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */
	158	#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */
	159	#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */
	160	#define IF_PROTO_FR_ETH_PVC 0x200B
	161	#define IF_PROTO_RAW 0x200C /* RAW Socket */
	162
	163	/* RFC 2863 operational status */
	164	enum {
	165	IF_OPER_UNKNOWN,
	166	IF_OPER_NOTPRESENT,
	167	IF_OPER_DOWN,
	168	IF_OPER_LOWERLAYERDOWN,
	169	IF_OPER_TESTING,
	170	IF_OPER_DORMANT,
	171	IF_OPER_UP,
	172	};
	173
	174	/* link modes */
	175	enum {
	176	IF_LINK_MODE_DEFAULT,
	177	IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */
	178	};
	179
	180	/*
	181	* Device mapping structure. I'd just gone off and designed a
	182	* beautiful scheme using only loadable modules with arguments
	183	* for driver options and along come the PCMCIA people 8)
	184	*
	185	* Ah well. The get() side of this is good for WDSETUP, and it'll
	186	* be handy for debugging things. The set side is fine for now and
	187	* being very small might be worth keeping for clean configuration.
	188	*/
	189
a192a2e9 VB	190	/* for compatibility with glibc net/if.h */
a192a2e9 VB	191	#if __UAPI_DEF_IF_IFMAP
2516cfb1 VB	192	struct ifmap {
	193	unsigned long mem_start;
	194	unsigned long mem_end;
	195	unsigned short base_addr;
	196	unsigned char irq;
	197	unsigned char dma;
	198	unsigned char port;
	199	/* 3 bytes spare */
	200	};
a192a2e9	201	#endif /* __UAPI_DEF_IF_IFMAP */
2516cfb1 VB	202
	203	struct if_settings {
	204	unsigned int type; /* Type of physical device or protocol */
	205	unsigned int size; /* Size of the data allocated by the caller */
	206	union {
	207	/* {atm/eth/dsl}_settings anyone ? */
	208	raw_hdlc_proto *raw_hdlc;
	209	cisco_proto *cisco;
	210	fr_proto *fr;
	211	fr_proto_pvc *fr_pvc;
	212	fr_proto_pvc_info *fr_pvc_info;
	213
	214	/* interface settings */
	215	sync_serial_settings *sync;
	216	te1_settings *te1;
	217	} ifs_ifsu;
	218	};
	219
	220	/*
	221	* Interface request structure used for socket
	222	* ioctl's. All interface ioctl's must have parameter
	223	* definitions which begin with ifr_name. The
	224	* remainder may be interface specific.
	225	*/
	226
a192a2e9 VB	227	/* for compatibility with glibc net/if.h */
a192a2e9 VB	228	#if __UAPI_DEF_IF_IFREQ
2516cfb1 VB	229	struct ifreq {
	230	#define IFHWADDRLEN 6
	231	union
	232	{
	233	char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
	234	} ifr_ifrn;
	235
	236	union {
	237	struct sockaddr ifru_addr;
	238	struct sockaddr ifru_dstaddr;
	239	struct sockaddr ifru_broadaddr;
	240	struct sockaddr ifru_netmask;
	241	struct sockaddr ifru_hwaddr;
	242	short ifru_flags;
	243	int ifru_ivalue;
	244	int ifru_mtu;
	245	struct ifmap ifru_map;
	246	char ifru_slave[IFNAMSIZ]; /* Just fits the size */
	247	char ifru_newname[IFNAMSIZ];
	248	void * ifru_data;
	249	struct if_settings ifru_settings;
	250	} ifr_ifru;
	251	};
a192a2e9	252	#endif /* __UAPI_DEF_IF_IFREQ */
2516cfb1 VB	253
	254	#define ifr_name ifr_ifrn.ifrn_name /* interface name */
	255	#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
	256	#define ifr_addr ifr_ifru.ifru_addr /* address */
	257	#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
	258	#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
	259	#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
	260	#define ifr_flags ifr_ifru.ifru_flags /* flags */
	261	#define ifr_metric ifr_ifru.ifru_ivalue /* metric */
	262	#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
	263	#define ifr_map ifr_ifru.ifru_map /* device map */
	264	#define ifr_slave ifr_ifru.ifru_slave /* slave device */
	265	#define ifr_data ifr_ifru.ifru_data /* for use by interface */
	266	#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */
	267	#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */
	268	#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */
	269	#define ifr_newname ifr_ifru.ifru_newname /* New name */
	270	#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/
	271
	272	/*
	273	* Structure used in SIOCGIFCONF request.
	274	* Used to retrieve interface configuration
	275	* for machine (useful for programs which
	276	* must know all networks accessible).
	277	*/
	278
a192a2e9 VB	279	/* for compatibility with glibc net/if.h */
a192a2e9 VB	280	#if __UAPI_DEF_IF_IFCONF
2516cfb1 VB	281	struct ifconf {
	282	int ifc_len; /* size of buffer */
	283	union {
	284	char *ifcu_buf;
	285	struct ifreq *ifcu_req;
	286	} ifc_ifcu;
	287	};
a192a2e9 VB	288	#endif /* __UAPI_DEF_IF_IFCONF */
a192a2e9 VB	289
2516cfb1 VB	290	#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
	291	#define ifc_req ifc_ifcu.ifcu_req /* array of structures */
	292
	293	#endif /* _LINUX_IF_H */