madwifi/net80211/if_media.h
2007-11-20 17:18:36 +00:00

498 lines
17 KiB
C

/* $NetBSD: if_media.h,v 1.3 1997/03/26 01:19:27 thorpej Exp $ */
/* $FreeBSD: src/sys/net/if_media.h,v 1.18 2002/07/14 21:58:19 kbyanc Exp $ */
/* $Id$ */
/*
* Copyright (c) 1997
* Jonathan Stone and Jason R. Thorpe. All rights reserved.
*
* This software is derived from information provided by Matt Thomas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jonathan Stone
* and Jason R. Thorpe for the NetBSD Project.
* 4. The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*/
#ifndef _NET_IF_MEDIA_H_
#define _NET_IF_MEDIA_H_
#include <net80211/ieee80211_linux.h>
/*
* Prototypes and definitions for BSD/OS-compatible network interface
* media selection.
*
* Where it is safe to do so, this code strays slightly from the BSD/OS
* design. Software which uses the API (device drivers, basically)
* shouldn't notice any difference.
*
* Many thanks to Matt Thomas for providing the information necessary
* to implement this interface.
*/
struct ifmediareq {
char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
int ifm_current; /* current media options */
int ifm_mask; /* don't care mask */
int ifm_status; /* media status */
int ifm_active; /* active options */
int ifm_count; /* # entries in ifm_ulist array */
int __user *ifm_ulist; /* media words */
};
#define SIOCSIFMEDIA _IOWR('i', 55, struct ifreq) /* set net media */
#define SIOCGIFMEDIA _IOWR('i', 56, struct ifmediareq) /* get net media */
#ifdef __KERNEL__
#include <sys/queue.h>
/*
* Driver callbacks for media status and change requests.
*/
struct net_device;
typedef int (*ifm_change_cb_t)(struct net_device *);
typedef void (*ifm_stat_cb_t)(struct net_device *, struct ifmediareq *);
/*
* In-kernel representation of a single supported media type.
*/
struct ifmedia_entry {
LIST_ENTRY(ifmedia_entry) ifm_list;
int ifm_media; /* description of this media attachment */
int ifm_data; /* for driver-specific use */
void *ifm_aux; /* for driver-specific use */
};
/*
* One of these goes into a network interface's softc structure.
* It is used to keep general media state.
*/
struct ifmedia {
int ifm_mask; /* mask of changes we don't care about */
int ifm_media; /* current user-set media word */
struct ifmedia_entry *ifm_cur; /* currently selected media */
ATH_LIST_HEAD(, ifmedia_entry) ifm_list; /* list of all supported media */
ifm_change_cb_t ifm_change; /* media change driver callback */
ifm_stat_cb_t ifm_status; /* media status driver callback */
};
/* Initialize an interface's struct if_media field. */
void ifmedia_init(struct ifmedia *, int, ifm_change_cb_t, ifm_stat_cb_t);
/* Remove all mediums from a struct ifmedia. */
void ifmedia_removeall(struct ifmedia *);
/* Add one supported medium to a struct ifmedia. */
void ifmedia_add(struct ifmedia *, int, int, void *);
/* Add an array (of ifmedia_entry) media to a struct ifmedia. */
void ifmedia_list_add(struct ifmedia *, struct ifmedia_entry *, int);
/* Set default media type on initialization. */
void ifmedia_set(struct ifmedia *, int);
/* Common ioctl function for getting/setting media, called by driver. */
int ifmedia_ioctl(struct net_device *, struct ifreq *, struct ifmedia *, u_long);
#endif /*_KERNEL */
/*
* if_media Options word:
* Bits Use
* ---- -------
* 0-4 Media variant
* 5-7 Media type
* 8-15 Type specific options
* 16-18 Mode (for multi-mode devices)
* 19 RFU
* 20-27 Shared (global) options
* 28-31 Instance
*/
/*
* Ethernet
*/
#define IFM_ETHER 0x00000020
#define IFM_10_T 3 /* 10BaseT - RJ45 */
#define IFM_10_2 4 /* 10Base2 - Thinnet */
#define IFM_10_5 5 /* 10Base5 - AUI */
#define IFM_100_TX 6 /* 100BaseTX - RJ45 */
#define IFM_100_FX 7 /* 100BaseFX - Fiber */
#define IFM_100_T4 8 /* 100BaseT4 - 4 pair cat 3 */
#define IFM_100_VG 9 /* 100VG-AnyLAN */
#define IFM_100_T2 10 /* 100BaseT2 */
#define IFM_1000_SX 11 /* 1000BaseSX - multi-mode fiber */
#define IFM_10_STP 12 /* 10BaseT over shielded TP */
#define IFM_10_FL 13 /* 10BaseFL - Fiber */
#define IFM_1000_LX 14 /* 1000baseLX - single-mode fiber */
#define IFM_1000_CX 15 /* 1000baseCX - 150ohm STP */
#define IFM_1000_T 16 /* 1000baseT - 4 pair cat 5 */
#define IFM_HPNA_1 17 /* HomePNA 1.0 (1Mb/s) */
/* note 31 is the max! */
#define IFM_ETH_MASTER 0x00000100 /* master mode (1000baseT) */
/*
* Token ring
*/
#define IFM_TOKEN 0x00000040
#define IFM_TOK_STP4 3 /* Shielded twisted pair 4m - DB9 */
#define IFM_TOK_STP16 4 /* Shielded twisted pair 16m - DB9 */
#define IFM_TOK_UTP4 5 /* Unshielded twisted pair 4m - RJ45 */
#define IFM_TOK_UTP16 6 /* Unshielded twisted pair 16m - RJ45 */
#define IFM_TOK_STP100 7 /* Shielded twisted pair 100m - DB9 */
#define IFM_TOK_UTP100 8 /* Unshielded twisted pair 100m - RJ45 */
#define IFM_TOK_ETR 0x00000200 /* Early token release */
#define IFM_TOK_SRCRT 0x00000400 /* Enable source routing features */
#define IFM_TOK_ALLR 0x00000800 /* All routes / Single route bcast */
#define IFM_TOK_DTR 0x00002000 /* Dedicated token ring */
#define IFM_TOK_CLASSIC 0x00004000 /* Classic token ring */
#define IFM_TOK_AUTO 0x00008000 /* Automatic Dedicate/Classic token ring */
/*
* FDDI
*/
#define IFM_FDDI 0x00000060
#define IFM_FDDI_SMF 3 /* Single-mode fiber */
#define IFM_FDDI_MMF 4 /* Multi-mode fiber */
#define IFM_FDDI_UTP 5 /* CDDI / UTP */
#define IFM_FDDI_DA 0x00000100 /* Dual attach / single attach */
/*
* IEEE 802.11 Wireless
*/
#define IFM_IEEE80211 0x00000080
/* NB: 0,1,2 are auto, manual, none defined below */
#define IFM_IEEE80211_FH1 3 /* Frequency Hopping 1Mbps */
#define IFM_IEEE80211_FH2 4 /* Frequency Hopping 2Mbps */
#define IFM_IEEE80211_DS1 5 /* Direct Sequence 1Mbps */
#define IFM_IEEE80211_DS2 6 /* Direct Sequence 2Mbps */
#define IFM_IEEE80211_DS5 7 /* Direct Sequence 5.5Mbps */
#define IFM_IEEE80211_DS11 8 /* Direct Sequence 11Mbps */
#define IFM_IEEE80211_DS22 9 /* Direct Sequence 22Mbps */
#define IFM_IEEE80211_OFDM1_50 10 /* OFDM 1.5Mbps */
#define IFM_IEEE80211_OFDM2_25 11 /* OFDM 2.25Mbps */
#define IFM_IEEE80211_OFDM3 12 /* OFDM 3Mbps */
#define IFM_IEEE80211_OFDM4_50 13 /* OFDM 4.5Mbps */
#define IFM_IEEE80211_OFDM6 14 /* OFDM 6Mbps */
#define IFM_IEEE80211_OFDM9 15 /* OFDM 9Mbps */
#define IFM_IEEE80211_OFDM12 16 /* OFDM 12Mbps */
#define IFM_IEEE80211_OFDM13_5 17 /* OFDM 13.5Mpbs */
#define IFM_IEEE80211_OFDM18 18 /* OFDM 18Mbps */
#define IFM_IEEE80211_OFDM24 19 /* OFDM 24Mbps */
#define IFM_IEEE80211_OFDM27 20 /* OFDM 27Mbps */
#define IFM_IEEE80211_OFDM36 21 /* OFDM 36Mbps */
#define IFM_IEEE80211_OFDM48 22 /* OFDM 48Mbps */
#define IFM_IEEE80211_OFDM54 23 /* OFDM 54Mbps */
#define IFM_IEEE80211_OFDM72 24 /* OFDM 72Mbps */
#define IFM_IEEE80211_ADHOC 0x00000100 /* Operate in Adhoc mode */
#define IFM_IEEE80211_HOSTAP 0x00000200 /* Operate in Host AP mode */
#define IFM_IEEE80211_IBSS 0x00000400 /* Operate in IBSS mode */
#define IFM_IEEE80211_WDS 0x00000800 /* Operate in WDS mode */
#define IFM_IEEE80211_TURBO 0x00001000 /* Operate in turbo mode */
#define IFM_IEEE80211_MONITOR 0x00002000 /* Operate in monitor mode */
/* operating mode for multi-mode devices */
#define IFM_IEEE80211_11A 0x00010000 /* 5Ghz, OFDM mode */
#define IFM_IEEE80211_11B 0x00020000 /* Direct Sequence mode */
#define IFM_IEEE80211_11G 0x00030000 /* 2Ghz, CCK mode */
#define IFM_IEEE80211_FH 0x00040000 /* 2Ghz, GFSK mode */
/*
* Shared media sub-types
*/
#define IFM_AUTO 0 /* Autoselect best media */
#define IFM_MANUAL 1 /* Jumper/dipswitch selects media */
#define IFM_NONE 2 /* Deselect all media */
/*
* Shared options
*/
#define IFM_FDX 0x00100000 /* Force full duplex */
#define IFM_HDX 0x00200000 /* Force half duplex */
#define IFM_FLAG0 0x01000000 /* Driver defined flag */
#define IFM_FLAG1 0x02000000 /* Driver defined flag */
#define IFM_FLAG2 0x04000000 /* Driver defined flag */
#define IFM_LOOP 0x08000000 /* Put hardware in loopback */
/*
* Masks
*/
#define IFM_NMASK 0x000000e0 /* Network type */
#define IFM_TMASK 0x0000001f /* Media sub-type */
#define IFM_IMASK 0xf0000000 /* Instance */
#define IFM_ISHIFT 28 /* Instance shift */
#define IFM_OMASK 0x0000ff00 /* Type specific options */
#define IFM_MMASK 0x00070000 /* Mode */
#define IFM_MSHIFT 16 /* Mode shift */
#define IFM_GMASK 0x0ff00000 /* Global options */
/*
* Status bits
*/
#define IFM_AVALID 0x00000001 /* Active bit valid */
#define IFM_ACTIVE 0x00000002 /* Interface attached to working net */
/*
* Macros to extract various bits of information from the media word.
*/
#define IFM_TYPE(x) ((x) & IFM_NMASK)
#define IFM_SUBTYPE(x) ((x) & IFM_TMASK)
#define IFM_TYPE_OPTIONS(x) ((x) & IFM_OMASK)
#define IFM_INST(x) (((x) & IFM_IMASK) >> IFM_ISHIFT)
#define IFM_OPTIONS(x) ((x) & (IFM_OMASK|IFM_GMASK))
#define IFM_MODE(x) ((x) & IFM_MMASK)
#define IFM_INST_MAX IFM_INST(IFM_IMASK)
/*
* Macro to create a media word.
*/
#define IFM_MAKEWORD(type, subtype, options, instance) \
((type) | (subtype) | (options) | ((instance) << IFM_ISHIFT))
#define IFM_MAKEMODE(mode) \
(((mode) << IFM_MSHIFT) & IFM_MMASK)
/*
* NetBSD extension not defined in the BSDI API. This is used in various
* places to get the canonical description for a given type/subtype.
*
* NOTE: all but the top-level type descriptions must contain NO whitespace!
* Otherwise, parsing these in ifconfig(8) would be a nightmare.
*/
struct ifmedia_description {
int ifmt_word; /* word value; may be masked */
const char *ifmt_string; /* description */
};
#define IFM_TYPE_DESCRIPTIONS { \
{ IFM_ETHER, "Ethernet" }, \
{ IFM_TOKEN, "Token ring" }, \
{ IFM_FDDI, "FDDI" }, \
{ IFM_IEEE80211, "IEEE 802.11 Wireless Ethernet" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_ETHERNET_DESCRIPTIONS { \
{ IFM_10_T, "10baseT/UTP" }, \
{ IFM_10_2, "10base2/BNC" }, \
{ IFM_10_5, "10base5/AUI" }, \
{ IFM_100_TX, "100baseTX" }, \
{ IFM_100_FX, "100baseFX" }, \
{ IFM_100_T4, "100baseT4" }, \
{ IFM_100_VG, "100baseVG" }, \
{ IFM_100_T2, "100baseT2" }, \
{ IFM_10_STP, "10baseSTP" }, \
{ IFM_10_FL, "10baseFL" }, \
{ IFM_1000_SX, "1000baseSX" }, \
{ IFM_1000_LX, "1000baseLX" }, \
{ IFM_1000_CX, "1000baseCX" }, \
{ IFM_1000_T, "1000baseTX" }, \
{ IFM_1000_T, "1000baseT" }, \
{ IFM_HPNA_1, "homePNA" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_ETHERNET_ALIASES { \
{ IFM_10_T, "UTP" }, \
{ IFM_10_T, "10UTP" }, \
{ IFM_10_2, "BNC" }, \
{ IFM_10_2, "10BNC" }, \
{ IFM_10_5, "AUI" }, \
{ IFM_10_5, "10AUI" }, \
{ IFM_100_TX, "100TX" }, \
{ IFM_100_T4, "100T4" }, \
{ IFM_100_VG, "100VG" }, \
{ IFM_100_T2, "100T2" }, \
{ IFM_10_STP, "10STP" }, \
{ IFM_10_FL, "10FL" }, \
{ IFM_1000_SX, "1000SX" }, \
{ IFM_1000_LX, "1000LX" }, \
{ IFM_1000_CX, "1000CX" }, \
{ IFM_1000_T, "1000TX" }, \
{ IFM_1000_T, "1000T" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS { \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_TOKENRING_DESCRIPTIONS { \
{ IFM_TOK_STP4, "DB9/4Mbit" }, \
{ IFM_TOK_STP16, "DB9/16Mbit" }, \
{ IFM_TOK_UTP4, "UTP/4Mbit" }, \
{ IFM_TOK_UTP16, "UTP/16Mbit" }, \
{ IFM_TOK_STP100, "STP/100Mbit" }, \
{ IFM_TOK_UTP100, "UTP/100Mbit" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_TOKENRING_ALIASES { \
{ IFM_TOK_STP4, "4STP" }, \
{ IFM_TOK_STP16, "16STP" }, \
{ IFM_TOK_UTP4, "4UTP" }, \
{ IFM_TOK_UTP16, "16UTP" }, \
{ IFM_TOK_STP100, "100STP" }, \
{ IFM_TOK_UTP100, "100UTP" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS { \
{ IFM_TOK_ETR, "EarlyTokenRelease" }, \
{ IFM_TOK_SRCRT, "SourceRouting" }, \
{ IFM_TOK_ALLR, "AllRoutes" }, \
{ IFM_TOK_DTR, "Dedicated" }, \
{ IFM_TOK_CLASSIC, "Classic" }, \
{ IFM_TOK_AUTO, " " }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_FDDI_DESCRIPTIONS { \
{ IFM_FDDI_SMF, "Single-mode" }, \
{ IFM_FDDI_MMF, "Multi-mode" }, \
{ IFM_FDDI_UTP, "UTP" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_FDDI_ALIASES { \
{ IFM_FDDI_SMF, "SMF" }, \
{ IFM_FDDI_MMF, "MMF" }, \
{ IFM_FDDI_UTP, "CDDI" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS { \
{ IFM_FDDI_DA, "Dual-attach" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_IEEE80211_DESCRIPTIONS { \
{ IFM_IEEE80211_FH1, "FH/1Mbps" }, \
{ IFM_IEEE80211_FH2, "FH/2Mbps" }, \
{ IFM_IEEE80211_DS1, "DS/1Mbps" }, \
{ IFM_IEEE80211_DS2, "DS/2Mbps" }, \
{ IFM_IEEE80211_DS5, "DS/5.5Mbps" }, \
{ IFM_IEEE80211_DS11, "DS/11Mbps" }, \
{ IFM_IEEE80211_DS22, "DS/22Mbps" }, \
{ IFM_IEEE80211_OFDM1_50, "OFDM/1.50Mbps" }, \
{ IFM_IEEE80211_OFDM2_25, "OFDM/2.25Mbps" }, \
{ IFM_IEEE80211_OFDM3, "OFDM/3Mbps" }, \
{ IFM_IEEE80211_OFDM4_50, "OFDM/4.5Mbps" }, \
{ IFM_IEEE80211_OFDM6, "OFDM/6Mbps" }, \
{ IFM_IEEE80211_OFDM9, "OFDM/9Mbps" }, \
{ IFM_IEEE80211_OFDM12, "OFDM/12Mbps" }, \
{ IFM_IEEE80211_OFDM13_5, "OFDM/13.5Mbps" }, \
{ IFM_IEEE80211_OFDM18, "OFDM/18Mbps" }, \
{ IFM_IEEE80211_OFDM24, "OFDM/24Mbps" }, \
{ IFM_IEEE80211_OFDM27, "OFDM/27Mbps" }, \
{ IFM_IEEE80211_OFDM36, "OFDM/36Mbps" }, \
{ IFM_IEEE80211_OFDM48, "OFDM/48Mbps" }, \
{ IFM_IEEE80211_OFDM54, "OFDM/54Mbps" }, \
{ IFM_IEEE80211_OFDM72, "OFDM/72Mbps" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_IEEE80211_ALIASES { \
{ IFM_IEEE80211_FH1, "FH1" }, \
{ IFM_IEEE80211_FH2, "FH2" }, \
{ IFM_IEEE80211_FH1, "FrequencyHopping/1Mbps" }, \
{ IFM_IEEE80211_FH2, "FrequencyHopping/2Mbps" }, \
{ IFM_IEEE80211_DS1, "DS1" }, \
{ IFM_IEEE80211_DS2, "DS2" }, \
{ IFM_IEEE80211_DS5, "DS5.5" }, \
{ IFM_IEEE80211_DS11, "DS11" }, \
{ IFM_IEEE80211_DS22, "DS22" }, \
{ IFM_IEEE80211_DS1, "DirectSequence/1Mbps" }, \
{ IFM_IEEE80211_DS2, "DirectSequence/2Mbps" }, \
{ IFM_IEEE80211_DS5, "DirectSequence/5.5Mbps" }, \
{ IFM_IEEE80211_DS11, "DirectSequence/11Mbps" }, \
{ IFM_IEEE80211_DS22, "DirectSequence/22Mbps" }, \
{ IFM_IEEE80211_OFDM1_50, "OFDM1.50Mpbs" }, \
{ IFM_IEEE80211_OFDM2_25, "OFDM2.25Mbps" }, \
{ IFM_IEEE80211_OFDM3, "OFDM3Mbps" }, \
{ IFM_IEEE80211_OFDM4_50, "OFDM4.5Mbps" }, \
{ IFM_IEEE80211_OFDM6, "OFDM6" }, \
{ IFM_IEEE80211_OFDM9, "OFDM9" }, \
{ IFM_IEEE80211_OFDM12, "OFDM12" }, \
{ IFM_IEEE80211_OFDM13_5, "OFDM13.5Mbps" }, \
{ IFM_IEEE80211_OFDM18, "OFDM18" }, \
{ IFM_IEEE80211_OFDM24, "OFDM24" }, \
{ IFM_IEEE80211_OFDM27, "OFDM27" }, \
{ IFM_IEEE80211_OFDM36, "OFDM36" }, \
{ IFM_IEEE80211_OFDM48, "OFDM48" }, \
{ IFM_IEEE80211_OFDM54, "OFDM54" }, \
{ IFM_IEEE80211_OFDM72, "OFDM72" }, \
{ IFM_IEEE80211_DS1, "CCK1" }, \
{ IFM_IEEE80211_DS2, "CCK2" }, \
{ IFM_IEEE80211_DS5, "CCK5.5" }, \
{ IFM_IEEE80211_DS11, "CCK11" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS { \
{ IFM_IEEE80211_ADHOC, "adhoc" }, \
{ IFM_IEEE80211_HOSTAP, "hostap" }, \
{ IFM_IEEE80211_IBSS, "ibss" }, \
{ IFM_IEEE80211_WDS, "wds" }, \
{ IFM_IEEE80211_TURBO, "turbo" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS { \
{ IFM_IEEE80211_11A, "11a" }, \
{ IFM_IEEE80211_11B, "11b" }, \
{ IFM_IEEE80211_11G, "11g" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_SHARED_DESCRIPTIONS { \
{ IFM_AUTO, "autoselect" }, \
{ IFM_MANUAL, "manual" }, \
{ IFM_NONE, "none" }, \
{ 0, NULL }, \
}
#define IFM_SUBTYPE_SHARED_ALIASES { \
{ IFM_AUTO, "auto" }, \
{ 0, NULL }, \
}
#define IFM_SHARED_OPTION_DESCRIPTIONS { \
{ IFM_FDX, "full-duplex" }, \
{ IFM_HDX, "half-duplex" }, \
{ IFM_FLAG0, "flag0" }, \
{ IFM_FLAG1, "flag1" }, \
{ IFM_FLAG2, "flag2" }, \
{ IFM_LOOP, "hw-loopback" }, \
{ 0, NULL }, \
}
#endif /* _NET_IF_MEDIA_H_ */