bsd/net/if.h

   1 /*
   2  * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright (c) 1982, 1986, 1989, 1993
  30  *      The Regents of the University of California.  All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)if.h        8.1 (Berkeley) 6/10/93
  61  * $FreeBSD: src/sys/net/if.h,v 1.58.2.2 2001/07/24 19:10:18 brooks Exp $
  62  */
  63
  64 #ifndef _NET_IF_H_
  65 #define _NET_IF_H_
  66
  67 #include <sys/cdefs.h>
  68
  69 #define IF_NAMESIZE     16
  70
  71 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
  72 #include <sys/appleapiopts.h>
  73 #ifdef __APPLE__
  74 /*
  75  * Define Data-Link event subclass, and associated
  76  * events.
  77  */
  78
  79 #define KEV_DL_SUBCLASS 2
  80
  81 #define KEV_DL_SIFFLAGS     1
  82 #define KEV_DL_SIFMETRICS   2
  83 #define KEV_DL_SIFMTU       3
  84 #define KEV_DL_SIFPHYS      4
  85 #define KEV_DL_SIFMEDIA     5
  86 #define KEV_DL_SIFGENERIC   6
  87 #define KEV_DL_ADDMULTI     7
  88 #define KEV_DL_DELMULTI     8
  89 #define KEV_DL_IF_ATTACHED  9
  90 #define KEV_DL_IF_DETACHING 10
  91 #define KEV_DL_IF_DETACHED  11
  92 #define KEV_DL_LINK_OFF     12
  93 #define KEV_DL_LINK_ON      13
  94 #define KEV_DL_PROTO_ATTACHED   14
  95 #define KEV_DL_PROTO_DETACHED   15
  96 #define KEV_DL_LINK_ADDRESS_CHANGED     16
  97 #define KEV_DL_WAKEFLAGS_CHANGED        17
  98
  99 #include <net/if_var.h>
 100 #include <sys/types.h>
 101 #endif
 102
 103 #ifdef KERNEL_PRIVATE
 104 #define         IF_MAXUNIT      0x7fff  /* historical value */
 105
 106 struct if_clonereq {
 107         int     ifcr_total;             /* total cloners (out) */
 108         int     ifcr_count;             /* room for this many in user buffer */
 109         char    *ifcr_buffer;           /* buffer for cloner names */
 110 };
 111
 112 struct if_clonereq64 {
 113         int     ifcr_total;             /* total cloners (out) */
 114         int     ifcr_count;             /* room for this many in user buffer */
 115         user64_addr_t ifcru_buffer      __attribute__((aligned(8)));
 116 };
 117
 118 struct if_clonereq32 {
 119         int     ifcr_total;             /* total cloners (out) */
 120         int     ifcr_count;             /* room for this many in user buffer */
 121         user32_addr_t ifcru_buffer;
 122 };
 123 #endif /* KERNEL_PRIVATE */
 124
 125 #define IFF_UP          0x1             /* interface is up */
 126 #define IFF_BROADCAST   0x2             /* broadcast address valid */
 127 #define IFF_DEBUG       0x4             /* turn on debugging */
 128 #define IFF_LOOPBACK    0x8             /* is a loopback net */
 129 #define IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
 130 #define IFF_NOTRAILERS 0x20             /* obsolete: avoid use of trailers */
 131 #define IFF_RUNNING     0x40            /* resources allocated */
 132 #define IFF_NOARP       0x80            /* no address resolution protocol */
 133 #define IFF_PROMISC     0x100           /* receive all packets */
 134 #define IFF_ALLMULTI    0x200           /* receive all multicast packets */
 135 #define IFF_OACTIVE     0x400           /* transmission in progress */
 136 #define IFF_SIMPLEX     0x800           /* can't hear own transmissions */
 137 #define IFF_LINK0       0x1000          /* per link layer defined bit */
 138 #define IFF_LINK1       0x2000          /* per link layer defined bit */
 139 #define IFF_LINK2       0x4000          /* per link layer defined bit */
 140 #define IFF_ALTPHYS     IFF_LINK2       /* use alternate physical connection */
 141 #define IFF_MULTICAST   0x8000          /* supports multicast */
 142
 143 #ifdef KERNEL_PRIVATE
 144 /* extended flags definitions:  (all bits are reserved for internal/future use) */
 145 #define IFEF_AUTOCONFIGURING    0x1
 146 #define IFEF_DVR_REENTRY_OK     0x20    /* When set, driver may be reentered from its own thread */
 147 #define IFEF_ACCEPT_RTADVD      0x40    /* set to accept IPv6 router advertisement on the interface */
 148 #define IFEF_DETACHING          0x80    /* Set when interface is detaching */
 149 #define IFEF_USEKPI                     0x100   /* Set when interface is created through the KPIs */
 150 #define IFEF_VLAN               0x200   /* interface has one or more vlans */
 151 #define IFEF_BOND               0x400   /* interface is part of bond */
 152 #define IFEF_ARPLL              0x800   /* ARP for IPv4LL addresses on this port */
 153 #define IFEF_NOWINDOWSCALE      0x1000  /* Don't scale TCP window on iface */
 154 #define IFEF_NOAUTOIPV6LL       0x2000  /* Interface IPv6 LinkLocal address not provided by kernel */
 155 #define IFEF_SENDLIST   0x10000000 /* Interface supports sending a list of packets */
 156 #define IFEF_REUSE      0x20000000 /* DLIL ifnet recycler, ifnet is not new */
 157 #define IFEF_INUSE      0x40000000 /* DLIL ifnet recycler, ifnet in use */
 158 #define IFEF_UPDOWNCHANGE       0x80000000 /* Interface's up/down state is changing */
 159
 160 /* flags set internally only: */
 161 #define IFF_CANTCHANGE \
 162         (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
 163             IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
 164
 165 #endif /* KERNEL_PRIVATE */
 166
 167 #define IFQ_MAXLEN      50
 168 #define IFNET_SLOWHZ    1               /* granularity is 1 second */
 169
 170 /*
 171  * Message format for use in obtaining information about interfaces
 172  * from sysctl and the routing socket
 173  */
 174 struct if_msghdr {
 175         unsigned short  ifm_msglen;     /* to skip over non-understood messages */
 176         unsigned char   ifm_version;    /* future binary compatability */
 177         unsigned char   ifm_type;       /* message type */
 178         int             ifm_addrs;      /* like rtm_addrs */
 179         int             ifm_flags;      /* value of if_flags */
 180         unsigned short  ifm_index;      /* index for associated ifp */
 181         struct  if_data ifm_data;       /* statistics and other data about if */
 182 };
 183
 184 /*
 185  * Message format for use in obtaining information about interface addresses
 186  * from sysctl and the routing socket
 187  */
 188 struct ifa_msghdr {
 189         unsigned short  ifam_msglen;    /* to skip over non-understood messages */
 190         unsigned char   ifam_version;   /* future binary compatability */
 191         unsigned char   ifam_type;      /* message type */
 192         int             ifam_addrs;     /* like rtm_addrs */
 193         int             ifam_flags;     /* value of ifa_flags */
 194         unsigned short  ifam_index;     /* index for associated ifp */
 195         int             ifam_metric;    /* value of ifa_metric */
 196 };
 197
 198 /*
 199  * Message format for use in obtaining information about multicast addresses
 200  * from the routing socket
 201  */
 202 struct ifma_msghdr {
 203         unsigned short  ifmam_msglen;   /* to skip over non-understood messages */
 204         unsigned char   ifmam_version;  /* future binary compatability */
 205         unsigned char   ifmam_type;     /* message type */
 206         int             ifmam_addrs;    /* like rtm_addrs */
 207         int             ifmam_flags;    /* value of ifa_flags */
 208         unsigned short  ifmam_index;    /* index for associated ifp */
 209 };
 210
 211 /*
 212  * Message format for use in obtaining information about interfaces
 213  * from sysctl
 214  */
 215 struct if_msghdr2 {
 216         u_short ifm_msglen;     /* to skip over non-understood messages */
 217         u_char  ifm_version;    /* future binary compatability */
 218         u_char  ifm_type;       /* message type */
 219         int     ifm_addrs;      /* like rtm_addrs */
 220         int     ifm_flags;      /* value of if_flags */
 221         u_short ifm_index;      /* index for associated ifp */
 222         int     ifm_snd_len;    /* instantaneous length of send queue */
 223         int     ifm_snd_maxlen; /* maximum length of send queue */
 224         int     ifm_snd_drops;  /* number of drops in send queue */
 225         int     ifm_timer;      /* time until if_watchdog called */
 226         struct if_data64        ifm_data;       /* statistics and other data about if */
 227 };
 228
 229 /*
 230  * Message format for use in obtaining information about multicast addresses
 231  * from sysctl
 232  */
 233 struct ifma_msghdr2 {
 234         u_short ifmam_msglen;   /* to skip over non-understood messages */
 235         u_char  ifmam_version;  /* future binary compatability */
 236         u_char  ifmam_type;     /* message type */
 237         int     ifmam_addrs;    /* like rtm_addrs */
 238         int     ifmam_flags;    /* value of ifa_flags */
 239         u_short ifmam_index;    /* index for associated ifp */
 240         int32_t ifmam_refcount;
 241 };
 242
 243 /*
 244  * ifdevmtu: interface device mtu
 245  *    Used with SIOCGIFDEVMTU to get the current mtu in use by the device,
 246  *    as well as the minimum and maximum mtu allowed by the device.
 247  */
 248 struct ifdevmtu {
 249         int     ifdm_current;
 250         int     ifdm_min;
 251         int     ifdm_max;
 252 };
 253
 254 #pragma pack(4)
 255
 256 /*
 257  ifkpi: interface kpi ioctl
 258  Used with SIOCSIFKPI and SIOCGIFKPI.
 259
 260  ifk_module_id - From in the kernel, a value from kev_vendor_code_find. From
 261         user space, a value from SIOCGKEVVENDOR ioctl on a kernel event socket.
 262  ifk_type - The type. Types are specific to each module id.
 263  ifk_data - The data. ifk_ptr may be a 64bit pointer for 64 bit processes.
 264
 265  Copying data between user space and kernel space is done using copyin
 266  and copyout. A process may be running in 64bit mode. In such a case,
 267  the pointer will be a 64bit pointer, not a 32bit pointer. The following
 268  sample is a safe way to copy the data in to the kernel from either a
 269  32bit or 64bit process:
 270
 271  user_addr_t tmp_ptr;
 272  if (IS_64BIT_PROCESS(current_proc())) {
 273         tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr64);
 274  }
 275  else {
 276         tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr);
 277  }
 278  error = copyin(tmp_ptr, allocated_dst_buffer, size of allocated_dst_buffer);
 279  */
 280
 281 struct ifkpi {
 282         unsigned int    ifk_module_id;
 283         unsigned int    ifk_type;
 284         union {
 285                 void            *ifk_ptr;
 286                 int             ifk_value;
 287 #ifdef KERNEL
 288                 u_int64_t       ifk_ptr64;
 289 #endif /* KERNEL */
 290         } ifk_data;
 291 };
 292
 293 /* Wake capabilities of a interface */
 294 #define IF_WAKE_ON_MAGIC_PACKET         0x01
 295 #ifdef KERNEL_PRIVATE
 296 #define IF_WAKE_VALID_FLAGS IF_WAKE_ON_MAGIC_PACKET
 297 #endif /* KERNEL_PRIVATE */
 298
 299
 300 #pragma pack()
 301
 302 /*
 303  * Interface request structure used for socket
 304  * ioctl's.  All interface ioctl's must have parameter
 305  * definitions which begin with ifr_name.  The
 306  * remainder may be interface specific.
 307  */
 308 struct  ifreq {
 309 #ifndef IFNAMSIZ
 310 #define IFNAMSIZ        IF_NAMESIZE
 311 #endif
 312         char    ifr_name[IFNAMSIZ];             /* if name, e.g. "en0" */
 313         union {
 314                 struct  sockaddr ifru_addr;
 315                 struct  sockaddr ifru_dstaddr;
 316                 struct  sockaddr ifru_broadaddr;
 317                 short   ifru_flags;
 318                 int     ifru_metric;
 319                 int     ifru_mtu;
 320                 int     ifru_phys;
 321                 int     ifru_media;
 322                 int     ifru_intval;
 323                 caddr_t ifru_data;
 324 #ifdef KERNEL_PRIVATE
 325                 u_int64_t ifru_data64;  /* 64-bit ifru_data */
 326 #endif /* KERNEL_PRIVATE */
 327                 struct  ifdevmtu ifru_devmtu;
 328                 struct  ifkpi   ifru_kpi;
 329                 u_int32_t ifru_wake_flags;
 330         } ifr_ifru;
 331 #define ifr_addr        ifr_ifru.ifru_addr      /* address */
 332 #define ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-to-p link */
 333 #define ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address */
 334 #ifdef __APPLE__
 335 #define ifr_flags       ifr_ifru.ifru_flags     /* flags */
 336 #else
 337 #define ifr_flags       ifr_ifru.ifru_flags[0]  /* flags */
 338 #define ifr_prevflags   ifr_ifru.ifru_flags[1]  /* flags */
 339 #endif /* __APPLE__ */
 340 #define ifr_metric      ifr_ifru.ifru_metric    /* metric */
 341 #define ifr_mtu         ifr_ifru.ifru_mtu       /* mtu */
 342 #define ifr_phys        ifr_ifru.ifru_phys      /* physical wire */
 343 #define ifr_media       ifr_ifru.ifru_media     /* physical media */
 344 #define ifr_data        ifr_ifru.ifru_data      /* for use by interface */
 345 #define ifr_devmtu      ifr_ifru.ifru_devmtu
 346 #define ifr_intval      ifr_ifru.ifru_intval    /* integer value */
 347 #ifdef KERNEL_PRIVATE
 348 #define ifr_data64      ifr_ifru.ifru_data64    /* 64-bit pointer */
 349 #endif /* KERNEL_PRIVATE */
 350 #define ifr_kpi         ifr_ifru.ifru_kpi
 351 #define ifr_wake_flags  ifr_ifru.ifru_wake_flags /* wake capabilities of devive */
 352 };
 353
 354 #define _SIZEOF_ADDR_IFREQ(ifr) \
 355         ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
 356          (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
 357           (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
 358
 359 struct ifaliasreq {
 360         char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
 361         struct  sockaddr ifra_addr;
 362         struct  sockaddr ifra_broadaddr;
 363         struct  sockaddr ifra_mask;
 364 };
 365
 366 struct rslvmulti_req {
 367      struct sockaddr *sa;
 368      struct sockaddr **llsa;
 369 };
 370
 371 #if !defined(KERNEL) || defined(KERNEL_PRIVATE)
 372 #pragma pack(4)
 373
 374 struct ifmediareq {
 375         char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 376         int     ifm_current;            /* current media options */
 377         int     ifm_mask;               /* don't care mask */
 378         int     ifm_status;             /* media status */
 379         int     ifm_active;             /* active options */
 380         int     ifm_count;              /* # entries in ifm_ulist array */
 381         int     *ifm_ulist;             /* media words */
 382 };
 383
 384 #pragma pack()
 385 #endif /* !KERNEL || KERNEL_PRIVATE */
 386
 387 #ifdef KERNEL_PRIVATE
 388 #pragma pack(4)
 389 struct ifmediareq64 {
 390         char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 391         int     ifm_current;            /* current media options */
 392         int     ifm_mask;               /* don't care mask */
 393         int     ifm_status;             /* media status */
 394         int     ifm_active;             /* active options */
 395         int     ifm_count;              /* # entries in ifm_ulist array */
 396         user64_addr_t ifmu_ulist __attribute__((aligned(8)));
 397 };
 398
 399 struct ifmediareq32 {
 400         char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 401         int     ifm_current;            /* current media options */
 402         int     ifm_mask;               /* don't care mask */
 403         int     ifm_status;             /* media status */
 404         int     ifm_active;             /* active options */
 405         int     ifm_count;              /* # entries in ifm_ulist array */
 406         user32_addr_t ifmu_ulist;       /* 32-bit pointer */
 407 };
 408 #pragma pack()
 409 #endif /* KERNEL_PRIVATE */
 410
 411
 412 #pragma pack(4)
 413 struct  ifdrv {
 414         char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 415         unsigned long   ifd_cmd;
 416         size_t          ifd_len;
 417         void            *ifd_data;
 418 };
 419 #pragma pack()
 420
 421 #ifdef KERNEL_PRIVATE
 422 #pragma pack(4)
 423 struct ifdrv32 {
 424         char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 425         u_int32_t       ifd_cmd;
 426         u_int32_t       ifd_len;
 427         user32_addr_t   ifd_data;
 428 };
 429
 430 struct  ifdrv64 {
 431         char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 432         u_int64_t       ifd_cmd;
 433         u_int64_t       ifd_len;
 434         user64_addr_t   ifd_data;
 435 };
 436 #pragma pack()
 437 #endif /* KERNEL_PRIVATE */
 438
 439 /*
 440  * Structure used to retrieve aux status data from interfaces.
 441  * Kernel suppliers to this interface should respect the formatting
 442  * needed by ifconfig(8): each line starts with a TAB and ends with
 443  * a newline.  The canonical example to copy and paste is in if_tun.c.
 444  */
 445
 446 #define IFSTATMAX       800             /* 10 lines of text */
 447 struct ifstat {
 448         char    ifs_name[IFNAMSIZ];     /* if name, e.g. "en0" */
 449         char    ascii[IFSTATMAX + 1];
 450 };
 451
 452 #if !defined(KERNEL) || defined(KERNEL_PRIVATE)
 453 /*
 454  * Structure used in SIOCGIFCONF request.
 455  * Used to retrieve interface configuration
 456  * for machine (useful for programs which
 457  * must know all networks accessible).
 458  */
 459 #pragma pack(4)
 460 struct  ifconf {
 461         int     ifc_len;                /* size of associated buffer */
 462         union {
 463                 caddr_t ifcu_buf;
 464                 struct  ifreq *ifcu_req;
 465         } ifc_ifcu;
 466 };
 467 #pragma pack()
 468 #define ifc_buf ifc_ifcu.ifcu_buf       /* buffer address */
 469 #define ifc_req ifc_ifcu.ifcu_req       /* array of structures returned */
 470 #endif /* !KERNEL || KERNEL_PRIVATE */
 471
 472 #if defined(KERNEL_PRIVATE)
 473 #pragma pack(4)
 474 struct ifconf32 {
 475         int     ifc_len;                /* size of associated buffer */
 476         struct {
 477                 user32_addr_t ifcu_req;
 478         } ifc_ifcu;
 479 };
 480
 481 struct ifconf64 {
 482         int     ifc_len;                /* size of associated buffer */
 483         struct {
 484                 user64_addr_t ifcu_req  __attribute__((aligned(8)));
 485         } ifc_ifcu;
 486 };
 487 #pragma pack()
 488 #endif /* KERNEL_PRIVATE */
 489
 490 /*
 491  * DLIL KEV_DL_PROTO_ATTACHED/DETACHED structure
 492  */
 493 struct kev_dl_proto_data {
 494      struct net_event_data      link_data;
 495      u_int32_t                  proto_family;
 496      u_int32_t                  proto_remaining_count;
 497 };
 498
 499 /*
 500  * Structure for SIOC[AGD]LIFADDR
 501  */
 502 struct if_laddrreq {
 503         char                    iflr_name[IFNAMSIZ];
 504         unsigned int            flags;
 505 #define IFLR_PREFIX     0x8000  /* in: prefix given  out: kernel fills id */
 506         unsigned int            prefixlen;         /* in/out */
 507         struct sockaddr_storage addr;   /* in/out */
 508         struct sockaddr_storage dstaddr; /* out */
 509 };
 510
 511 #ifdef KERNEL
 512 #ifdef MALLOC_DECLARE
 513 MALLOC_DECLARE(M_IFADDR);
 514 MALLOC_DECLARE(M_IFMADDR);
 515 #endif
 516 #endif
 517 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 518
 519 #ifndef KERNEL
 520 struct if_nameindex {
 521         unsigned int     if_index;      /* 1, 2, ... */
 522         char            *if_name;       /* null terminated name: "le0", ... */
 523 };
 524
 525 __BEGIN_DECLS
 526 unsigned int     if_nametoindex(const char *);
 527 char            *if_indextoname(unsigned int, char *);
 528 struct           if_nameindex *if_nameindex(void);
 529 void             if_freenameindex(struct if_nameindex *);
 530 __END_DECLS
 531 #endif
 532
 533 #ifdef KERNEL
 534 #include <net/kpi_interface.h>
 535 #endif
 536
 537 #endif /* !_NET_IF_H_ */