The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/net/if_media.h

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    1 /*      $NetBSD: if_media.h,v 1.3 1997/03/26 01:19:27 thorpej Exp $     */
    2 /* $FreeBSD: releng/5.0/sys/net/if_media.h 99994 2002-07-14 21:58:19Z kbyanc $ */
    3 
    4 /*
    5  * Copyright (c) 1997
    6  *      Jonathan Stone and Jason R. Thorpe.  All rights reserved.
    7  *
    8  * This software is derived from information provided by Matt Thomas.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by Jonathan Stone
   21  *      and Jason R. Thorpe for the NetBSD Project.
   22  * 4. The names of the authors may not be used to endorse or promote products
   23  *    derived from this software without specific prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   28  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   30  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   31  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   32  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   33  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  */
   37 
   38 #ifndef _NET_IF_MEDIA_H_
   39 #define _NET_IF_MEDIA_H_
   40 
   41 /*
   42  * Prototypes and definitions for BSD/OS-compatible network interface
   43  * media selection.
   44  *
   45  * Where it is safe to do so, this code strays slightly from the BSD/OS
   46  * design.  Software which uses the API (device drivers, basically)
   47  * shouldn't notice any difference.
   48  *
   49  * Many thanks to Matt Thomas for providing the information necessary
   50  * to implement this interface.
   51  */
   52 
   53 #ifdef _KERNEL
   54 
   55 #include <sys/queue.h>
   56 
   57 /*
   58  * Driver callbacks for media status and change requests.
   59  */
   60 typedef int (*ifm_change_cb_t)(struct ifnet *ifp);
   61 typedef void (*ifm_stat_cb_t)(struct ifnet *ifp, struct ifmediareq *req);
   62 
   63 /*
   64  * In-kernel representation of a single supported media type.
   65  */
   66 struct ifmedia_entry {
   67         LIST_ENTRY(ifmedia_entry) ifm_list;
   68         int     ifm_media;      /* description of this media attachment */
   69         int     ifm_data;       /* for driver-specific use */
   70         void    *ifm_aux;       /* for driver-specific use */
   71 };
   72 
   73 /*
   74  * One of these goes into a network interface's softc structure.
   75  * It is used to keep general media state.
   76  */
   77 struct ifmedia {
   78         int     ifm_mask;       /* mask of changes we don't care about */
   79         int     ifm_media;      /* current user-set media word */
   80         struct ifmedia_entry *ifm_cur;  /* currently selected media */
   81         LIST_HEAD(, ifmedia_entry) ifm_list; /* list of all supported media */
   82         ifm_change_cb_t ifm_change;     /* media change driver callback */
   83         ifm_stat_cb_t   ifm_status;     /* media status driver callback */
   84 };
   85 
   86 /* Initialize an interface's struct if_media field. */
   87 void    ifmedia_init(struct ifmedia *ifm, int dontcare_mask,
   88             ifm_change_cb_t change_callback, ifm_stat_cb_t status_callback);
   89 
   90 /* Remove all mediums from a struct ifmedia.  */
   91 void    ifmedia_removeall( struct ifmedia *ifm);
   92 
   93 /* Add one supported medium to a struct ifmedia. */
   94 void    ifmedia_add(struct ifmedia *ifm, int mword, int data, void *aux);
   95 
   96 /* Add an array (of ifmedia_entry) media to a struct ifmedia. */
   97 void    ifmedia_list_add(struct ifmedia *mp, struct ifmedia_entry *lp,
   98             int count);
   99 
  100 /* Set default media type on initialization. */
  101 void    ifmedia_set(struct ifmedia *ifm, int mword);
  102 
  103 /* Common ioctl function for getting/setting media, called by driver. */
  104 int     ifmedia_ioctl(struct ifnet *ifp, struct ifreq *ifr,
  105             struct ifmedia *ifm, u_long cmd);
  106 
  107 #endif /*_KERNEL */
  108 
  109 /*
  110  * if_media Options word:
  111  *      Bits    Use
  112  *      ----    -------
  113  *      0-4     Media variant
  114  *      5-7     Media type
  115  *      8-15    Type specific options
  116  *      16-19   RFU
  117  *      20-27   Shared (global) options
  118  *      28-31   Instance
  119  */
  120 
  121 /*
  122  * Ethernet
  123  */
  124 #define IFM_ETHER       0x00000020
  125 #define IFM_10_T        3               /* 10BaseT - RJ45 */
  126 #define IFM_10_2        4               /* 10Base2 - Thinnet */
  127 #define IFM_10_5        5               /* 10Base5 - AUI */
  128 #define IFM_100_TX      6               /* 100BaseTX - RJ45 */
  129 #define IFM_100_FX      7               /* 100BaseFX - Fiber */
  130 #define IFM_100_T4      8               /* 100BaseT4 - 4 pair cat 3 */
  131 #define IFM_100_VG      9               /* 100VG-AnyLAN */
  132 #define IFM_100_T2      10              /* 100BaseT2 */
  133 #define IFM_1000_SX     11              /* 1000BaseSX - multi-mode fiber */
  134 #define IFM_10_STP      12              /* 10BaseT over shielded TP */
  135 #define IFM_10_FL       13              /* 10BaseFL - Fiber */
  136 #define IFM_1000_LX     14              /* 1000baseLX - single-mode fiber */
  137 #define IFM_1000_CX     15              /* 1000baseCX - 150ohm STP */
  138 #define IFM_1000_T      16              /* 1000baseT - 4 pair cat 5 */
  139 #define IFM_HPNA_1      17              /* HomePNA 1.0 (1Mb/s) */
  140 /* note 31 is the max! */
  141 
  142 #define IFM_ETH_MASTER  0x00000100      /* master mode (1000baseT) */
  143 
  144 /*
  145  * Token ring
  146  */
  147 #define IFM_TOKEN       0x00000040
  148 #define IFM_TOK_STP4    3               /* Shielded twisted pair 4m - DB9 */
  149 #define IFM_TOK_STP16   4               /* Shielded twisted pair 16m - DB9 */
  150 #define IFM_TOK_UTP4    5               /* Unshielded twisted pair 4m - RJ45 */
  151 #define IFM_TOK_UTP16   6               /* Unshielded twisted pair 16m - RJ45 */
  152 #define IFM_TOK_STP100  7               /* Shielded twisted pair 100m - DB9 */
  153 #define IFM_TOK_UTP100  8               /* Unshielded twisted pair 100m - RJ45 */
  154 #define IFM_TOK_ETR     0x00000200      /* Early token release */
  155 #define IFM_TOK_SRCRT   0x00000400      /* Enable source routing features */
  156 #define IFM_TOK_ALLR    0x00000800      /* All routes / Single route bcast */
  157 #define IFM_TOK_DTR     0x00002000      /* Dedicated token ring */
  158 #define IFM_TOK_CLASSIC 0x00004000      /* Classic token ring */
  159 #define IFM_TOK_AUTO    0x00008000      /* Automatic Dedicate/Classic token ring */
  160 
  161 /*
  162  * FDDI
  163  */
  164 #define IFM_FDDI        0x00000060
  165 #define IFM_FDDI_SMF    3               /* Single-mode fiber */
  166 #define IFM_FDDI_MMF    4               /* Multi-mode fiber */
  167 #define IFM_FDDI_UTP    5               /* CDDI / UTP */
  168 #define IFM_FDDI_DA     0x00000100      /* Dual attach / single attach */
  169 
  170 /*
  171  * IEEE 802.11 Wireless
  172  */
  173 #define IFM_IEEE80211   0x00000080
  174 #define IFM_IEEE80211_FH1       3       /* Frequency Hopping 1Mbps */
  175 #define IFM_IEEE80211_FH2       4       /* Frequency Hopping 2Mbps */
  176 #define IFM_IEEE80211_DS1       5       /* Direct Sequence 1Mbps */
  177 #define IFM_IEEE80211_DS2       6       /* Direct Sequence 2Mbps */
  178 #define IFM_IEEE80211_DS5       7       /* Direct Sequence 5.5Mbps */
  179 #define IFM_IEEE80211_DS11      8       /* Direct Sequence 11Mbps */
  180 #define IFM_IEEE80211_DS22      9       /* Direct Sequence 22Mbps */
  181 #define IFM_IEEE80211_ODFM6     10      /* ODFM 6Mbps */
  182 #define IFM_IEEE80211_ODFM9     11      /* ODFM 9Mbps */
  183 #define IFM_IEEE80211_ODFM12    12      /* ODFM 12Mbps */
  184 #define IFM_IEEE80211_ODFM18    13      /* ODFM 18Mbps */
  185 #define IFM_IEEE80211_ODFM24    14      /* ODFM 24Mbps */
  186 #define IFM_IEEE80211_ODFM36    15      /* ODFM 36Mbps */
  187 #define IFM_IEEE80211_ODFM48    16      /* ODFM 48Mbps */
  188 #define IFM_IEEE80211_ODFM54    17      /* ODFM 54Mbps */
  189 #define IFM_IEEE80211_ODFM72    18      /* ODFM 72Mbps */
  190 #define IFM_IEEE80211_ADHOC     0x00000100      /* Operate in Adhoc mode */
  191 #define IFM_IEEE80211_HOSTAP    0x00000200      /* Operate in Host AP mode */
  192 #define IFM_IEEE80211_IBSS      0x00000400      /* Operate in IBSS mode */
  193 #define IFM_IEEE80211_IBSSMASTER 0x00000800     /* Operate as an IBSS master */
  194 
  195 /*
  196  * Shared media sub-types
  197  */
  198 #define IFM_AUTO        0               /* Autoselect best media */
  199 #define IFM_MANUAL      1               /* Jumper/dipswitch selects media */
  200 #define IFM_NONE        2               /* Deselect all media */
  201 
  202 /*
  203  * Shared options
  204  */
  205 #define IFM_FDX         0x00100000      /* Force full duplex */
  206 #define IFM_HDX         0x00200000      /* Force half duplex */
  207 #define IFM_FLAG0       0x01000000      /* Driver defined flag */
  208 #define IFM_FLAG1       0x02000000      /* Driver defined flag */
  209 #define IFM_FLAG2       0x04000000      /* Driver defined flag */
  210 #define IFM_LOOP        0x08000000      /* Put hardware in loopback */
  211 
  212 /*
  213  * Masks
  214  */
  215 #define IFM_NMASK       0x000000e0      /* Network type */
  216 #define IFM_TMASK       0x0000001f      /* Media sub-type */
  217 #define IFM_IMASK       0xf0000000      /* Instance */
  218 #define IFM_ISHIFT      28              /* Instance shift */
  219 #define IFM_OMASK       0x0000ff00      /* Type specific options */
  220 #define IFM_GMASK       0x0ff00000      /* Global options */
  221 
  222 /*
  223  * Status bits
  224  */
  225 #define IFM_AVALID      0x00000001      /* Active bit valid */
  226 #define IFM_ACTIVE      0x00000002      /* Interface attached to working net */
  227 
  228 /*
  229  * Macros to extract various bits of information from the media word.
  230  */
  231 #define IFM_TYPE(x)         ((x) & IFM_NMASK)
  232 #define IFM_SUBTYPE(x)      ((x) & IFM_TMASK)
  233 #define IFM_TYPE_OPTIONS(x) ((x) & IFM_OMASK)
  234 #define IFM_INST(x)         (((x) & IFM_IMASK) >> IFM_ISHIFT)
  235 #define IFM_OPTIONS(x)  ((x) & (IFM_OMASK|IFM_GMASK))
  236 
  237 #define IFM_INST_MAX    IFM_INST(IFM_IMASK)
  238 
  239 /*
  240  * Macro to create a media word.
  241  */
  242 #define IFM_MAKEWORD(type, subtype, options, instance)                  \
  243         ((type) | (subtype) | (options) | ((instance) << IFM_ISHIFT))
  244 
  245 /*
  246  * NetBSD extension not defined in the BSDI API.  This is used in various
  247  * places to get the canonical description for a given type/subtype.
  248  *
  249  * NOTE: all but the top-level type descriptions must contain NO whitespace!
  250  * Otherwise, parsing these in ifconfig(8) would be a nightmare.
  251  */
  252 struct ifmedia_description {
  253         int     ifmt_word;              /* word value; may be masked */
  254         const char *ifmt_string;        /* description */
  255 };
  256 
  257 #define IFM_TYPE_DESCRIPTIONS {                                         \
  258         { IFM_ETHER,            "Ethernet" },                           \
  259         { IFM_TOKEN,            "Token ring" },                         \
  260         { IFM_FDDI,             "FDDI" },                               \
  261         { IFM_IEEE80211,        "IEEE 802.11 Wireless Ethernet" },      \
  262         { 0, NULL },                                                    \
  263 }
  264 
  265 #define IFM_SUBTYPE_ETHERNET_DESCRIPTIONS {                             \
  266         { IFM_10_T,     "10baseT/UTP" },                                \
  267         { IFM_10_2,     "10base2/BNC" },                                \
  268         { IFM_10_5,     "10base5/AUI" },                                \
  269         { IFM_100_TX,   "100baseTX" },                                  \
  270         { IFM_100_FX,   "100baseFX" },                                  \
  271         { IFM_100_T4,   "100baseT4" },                                  \
  272         { IFM_100_VG,   "100baseVG" },                                  \
  273         { IFM_100_T2,   "100baseT2" },                                  \
  274         { IFM_10_STP,   "10baseSTP" },                                  \
  275         { IFM_10_FL,    "10baseFL" },                                   \
  276         { IFM_1000_SX,  "1000baseSX" },                                 \
  277         { IFM_1000_LX,  "1000baseLX" },                                 \
  278         { IFM_1000_CX,  "1000baseCX" },                                 \
  279         { IFM_1000_T,   "1000baseTX" },                                 \
  280         { IFM_1000_T,   "1000baseT" },                                  \
  281         { IFM_HPNA_1,   "homePNA" },                                    \
  282         { 0, NULL },                                                    \
  283 }
  284 
  285 #define IFM_SUBTYPE_ETHERNET_ALIASES {                                  \
  286         { IFM_10_T,     "UTP" },                                        \
  287         { IFM_10_T,     "10UTP" },                                      \
  288         { IFM_10_2,     "BNC" },                                        \
  289         { IFM_10_2,     "10BNC" },                                      \
  290         { IFM_10_5,     "AUI" },                                        \
  291         { IFM_10_5,     "10AUI" },                                      \
  292         { IFM_100_TX,   "100TX" },                                      \
  293         { IFM_100_T4,   "100T4" },                                      \
  294         { IFM_100_VG,   "100VG" },                                      \
  295         { IFM_100_T2,   "100T2" },                                      \
  296         { IFM_10_STP,   "10STP" },                                      \
  297         { IFM_10_FL,    "10FL" },                                       \
  298         { IFM_1000_SX,  "1000SX" },                                     \
  299         { IFM_1000_LX,  "1000LX" },                                     \
  300         { IFM_1000_CX,  "1000CX" },                                     \
  301         { IFM_1000_T,   "1000TX" },                                     \
  302         { IFM_1000_T,   "1000T" },                                      \
  303         { 0, NULL },                                                    \
  304 }
  305 
  306 #define IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS {                      \
  307         { 0, NULL },                                                    \
  308 }
  309 
  310 #define IFM_SUBTYPE_TOKENRING_DESCRIPTIONS {                            \
  311         { IFM_TOK_STP4, "DB9/4Mbit" },                                  \
  312         { IFM_TOK_STP16, "DB9/16Mbit" },                                \
  313         { IFM_TOK_UTP4, "UTP/4Mbit" },                                  \
  314         { IFM_TOK_UTP16, "UTP/16Mbit" },                                \
  315         { IFM_TOK_STP100, "STP/100Mbit" },                              \
  316         { IFM_TOK_UTP100, "UTP/100Mbit" },                              \
  317         { 0, NULL },                                                    \
  318 }
  319 
  320 #define IFM_SUBTYPE_TOKENRING_ALIASES {                                 \
  321         { IFM_TOK_STP4, "4STP" },                                       \
  322         { IFM_TOK_STP16, "16STP" },                                     \
  323         { IFM_TOK_UTP4, "4UTP" },                                       \
  324         { IFM_TOK_UTP16, "16UTP" },                                     \
  325         { IFM_TOK_STP100, "100STP" },                                   \
  326         { IFM_TOK_UTP100, "100UTP" },                                   \
  327         { 0, NULL },                                                    \
  328 }
  329 
  330 #define IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS {                     \
  331         { IFM_TOK_ETR,  "EarlyTokenRelease" },                          \
  332         { IFM_TOK_SRCRT, "SourceRouting" },                             \
  333         { IFM_TOK_ALLR, "AllRoutes" },                                  \
  334         { IFM_TOK_DTR,  "Dedicated" },                                  \
  335         { IFM_TOK_CLASSIC,"Classic" },                                  \
  336         { IFM_TOK_AUTO, " " },                                          \
  337         { 0, NULL },                                                    \
  338 }
  339 
  340 #define IFM_SUBTYPE_FDDI_DESCRIPTIONS {                                 \
  341         { IFM_FDDI_SMF, "Single-mode" },                                \
  342         { IFM_FDDI_MMF, "Multi-mode" },                                 \
  343         { IFM_FDDI_UTP, "UTP" },                                        \
  344         { 0, NULL },                                                    \
  345 }
  346 
  347 #define IFM_SUBTYPE_FDDI_ALIASES {                                      \
  348         { IFM_FDDI_SMF, "SMF" },                                        \
  349         { IFM_FDDI_MMF, "MMF" },                                        \
  350         { IFM_FDDI_UTP, "CDDI" },                                       \
  351         { 0, NULL },                                                    \
  352 }
  353 
  354 #define IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS {                          \
  355         { IFM_FDDI_DA, "Dual-attach" },                                 \
  356         { 0, NULL },                                                    \
  357 }
  358 
  359 #define IFM_SUBTYPE_IEEE80211_DESCRIPTIONS {                            \
  360         { IFM_IEEE80211_FH1, "FH/1Mbps" },                              \
  361         { IFM_IEEE80211_FH2, "FH/2Mbps" },                              \
  362         { IFM_IEEE80211_DS1, "DS/1Mbps" },                              \
  363         { IFM_IEEE80211_DS2, "DS/2Mbps" },                              \
  364         { IFM_IEEE80211_DS5, "DS/5.5Mbps" },                            \
  365         { IFM_IEEE80211_DS11, "DS/11Mbps" },                            \
  366         { IFM_IEEE80211_DS22, "DS/22Mbps" },                            \
  367         { IFM_IEEE80211_ODFM6, "ODFM/6Mbps" },                          \
  368         { IFM_IEEE80211_ODFM9, "ODFM/9Mbps" },                          \
  369         { IFM_IEEE80211_ODFM12, "ODFM/12Mbps" },                        \
  370         { IFM_IEEE80211_ODFM18, "ODFM/18Mbps" },                        \
  371         { IFM_IEEE80211_ODFM24, "ODFM/24Mbps" },                        \
  372         { IFM_IEEE80211_ODFM36, "ODFM/36Mbps" },                        \
  373         { IFM_IEEE80211_ODFM48, "ODFM/48Mbps" },                        \
  374         { IFM_IEEE80211_ODFM54, "ODFM/54Mbps" },                        \
  375         { IFM_IEEE80211_ODFM72, "ODFM/72Mbps" },                        \
  376         { 0, NULL },                                                    \
  377 }
  378 
  379 #define IFM_SUBTYPE_IEEE80211_ALIASES {                                 \
  380         { IFM_IEEE80211_FH1, "FH1" },                                   \
  381         { IFM_IEEE80211_FH2, "FH2" },                                   \
  382         { IFM_IEEE80211_FH1, "FrequencyHopping/1Mbps" },                \
  383         { IFM_IEEE80211_FH2, "FrequencyHopping/2Mbps" },                \
  384         { IFM_IEEE80211_DS1, "DS1" },                                   \
  385         { IFM_IEEE80211_DS2, "DS2" },                                   \
  386         { IFM_IEEE80211_DS5, "DS5.5" },                                 \
  387         { IFM_IEEE80211_DS11, "DS11" },                                 \
  388         { IFM_IEEE80211_DS22, "DS22" },                                 \
  389         { IFM_IEEE80211_DS1, "DirectSequence/1Mbps" },                  \
  390         { IFM_IEEE80211_DS2, "DirectSequence/2Mbps" },                  \
  391         { IFM_IEEE80211_DS5, "DirectSequence/5.5Mbps" },                \
  392         { IFM_IEEE80211_DS11, "DirectSequence/11Mbps" },                \
  393         { IFM_IEEE80211_DS22, "DirectSequence/22Mbps" },                \
  394         { IFM_IEEE80211_ODFM6, "ODFM6" },                               \
  395         { IFM_IEEE80211_ODFM9, "ODFM9" },                               \
  396         { IFM_IEEE80211_ODFM12, "ODFM12" },                             \
  397         { IFM_IEEE80211_ODFM18, "ODFM18" },                             \
  398         { IFM_IEEE80211_ODFM24, "ODFM24" },                             \
  399         { IFM_IEEE80211_ODFM36, "ODFM36" },                             \
  400         { IFM_IEEE80211_ODFM48, "ODFM48" },                             \
  401         { IFM_IEEE80211_ODFM54, "ODFM54" },                             \
  402         { IFM_IEEE80211_ODFM72, "ODFM72" },                             \
  403         { 0, NULL },                                                    \
  404 }
  405 
  406 #define IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS {                     \
  407         { IFM_IEEE80211_ADHOC, "adhoc" },                               \
  408         { IFM_IEEE80211_HOSTAP, "hostap" },                             \
  409         { IFM_IEEE80211_IBSS, "ibss" },                                 \
  410         { IFM_IEEE80211_IBSSMASTER, "ibss-master" },                    \
  411         { 0, NULL },                                                    \
  412 }
  413 
  414 #define IFM_SUBTYPE_SHARED_DESCRIPTIONS {                               \
  415         { IFM_AUTO,     "autoselect" },                                 \
  416         { IFM_MANUAL,   "manual" },                                     \
  417         { IFM_NONE,     "none" },                                       \
  418         { 0, NULL },                                                    \
  419 }
  420 
  421 #define IFM_SUBTYPE_SHARED_ALIASES {                                    \
  422         { IFM_AUTO,     "auto" },                                       \
  423         { 0, NULL },                                                    \
  424 }
  425 
  426 #define IFM_SHARED_OPTION_DESCRIPTIONS {                                \
  427         { IFM_FDX,      "full-duplex" },                                \
  428         { IFM_HDX,      "half-duplex" },                                \
  429         { IFM_FLAG0,    "flag0" },                                      \
  430         { IFM_FLAG1,    "flag1" },                                      \
  431         { IFM_FLAG2,    "flag2" },                                      \
  432         { IFM_LOOP,     "hw-loopback" },                                \
  433         { 0, NULL },                                                    \
  434 }
  435 
  436 #endif  /* _NET_IF_MEDIA_H_ */

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