if.h revision 238247
1/*- 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)if.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD: stable/9/sys/net/if.h 238247 2012-07-08 14:21:36Z bz $ 31 */ 32 33#ifndef _NET_IF_H_ 34#define _NET_IF_H_ 35 36#include <sys/cdefs.h> 37 38#ifdef _KERNEL 39#include <sys/queue.h> 40#endif 41 42#if __BSD_VISIBLE 43/* 44 * <net/if.h> does not depend on <sys/time.h> on most other systems. This 45 * helps userland compatibility. (struct timeval ifi_lastchange) 46 * The same holds for <sys/socket.h>. (struct sockaddr ifru_addr) 47 */ 48#ifndef _KERNEL 49#include <sys/time.h> 50#include <sys/socket.h> 51#endif 52 53struct ifnet; 54#endif 55 56/* 57 * Length of interface external name, including terminating '\0'. 58 * Note: this is the same size as a generic device's external name. 59 */ 60#define IF_NAMESIZE 16 61#if __BSD_VISIBLE 62#define IFNAMSIZ IF_NAMESIZE 63#define IF_MAXUNIT 0x7fff /* historical value */ 64#endif 65#if __BSD_VISIBLE 66 67/* 68 * Structure used to query names of interface cloners. 69 */ 70 71struct if_clonereq { 72 int ifcr_total; /* total cloners (out) */ 73 int ifcr_count; /* room for this many in user buffer */ 74 char *ifcr_buffer; /* buffer for cloner names */ 75}; 76 77/* 78 * Structure describing information about an interface 79 * which may be of interest to management entities. 80 */ 81struct if_data { 82 /* generic interface information */ 83 u_char ifi_type; /* ethernet, tokenring, etc */ 84 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 85 u_char ifi_addrlen; /* media address length */ 86 u_char ifi_hdrlen; /* media header length */ 87 u_char ifi_link_state; /* current link state */ 88 u_char ifi_spare_char1; /* spare byte */ 89 u_char ifi_spare_char2; /* spare byte */ 90 u_char ifi_datalen; /* length of this data struct */ 91 u_long ifi_mtu; /* maximum transmission unit */ 92 u_long ifi_metric; /* routing metric (external only) */ 93 u_long ifi_baudrate; /* linespeed */ 94 /* volatile statistics */ 95 u_long ifi_ipackets; /* packets received on interface */ 96 u_long ifi_ierrors; /* input errors on interface */ 97 u_long ifi_opackets; /* packets sent on interface */ 98 u_long ifi_oerrors; /* output errors on interface */ 99 u_long ifi_collisions; /* collisions on csma interfaces */ 100 u_long ifi_ibytes; /* total number of octets received */ 101 u_long ifi_obytes; /* total number of octets sent */ 102 u_long ifi_imcasts; /* packets received via multicast */ 103 u_long ifi_omcasts; /* packets sent via multicast */ 104 u_long ifi_iqdrops; /* dropped on input, this interface */ 105 u_long ifi_noproto; /* destined for unsupported protocol */ 106 u_long ifi_hwassist; /* HW offload capabilities, see IFCAP */ 107 time_t ifi_epoch; /* uptime at attach or stat reset */ 108 struct timeval ifi_lastchange; /* time of last administrative change */ 109}; 110 111/*- 112 * Interface flags are of two types: network stack owned flags, and driver 113 * owned flags. Historically, these values were stored in the same ifnet 114 * flags field, but with the advent of fine-grained locking, they have been 115 * broken out such that the network stack is responsible for synchronizing 116 * the stack-owned fields, and the device driver the device-owned fields. 117 * Both halves can perform lockless reads of the other half's field, subject 118 * to accepting the involved races. 119 * 120 * Both sets of flags come from the same number space, and should not be 121 * permitted to conflict, as they are exposed to user space via a single 122 * field. 123 * 124 * The following symbols identify read and write requirements for fields: 125 * 126 * (i) if_flags field set by device driver before attach, read-only there 127 * after. 128 * (n) if_flags field written only by the network stack, read by either the 129 * stack or driver. 130 * (d) if_drv_flags field written only by the device driver, read by either 131 * the stack or driver. 132 */ 133#define IFF_UP 0x1 /* (n) interface is up */ 134#define IFF_BROADCAST 0x2 /* (i) broadcast address valid */ 135#define IFF_DEBUG 0x4 /* (n) turn on debugging */ 136#define IFF_LOOPBACK 0x8 /* (i) is a loopback net */ 137#define IFF_POINTOPOINT 0x10 /* (i) is a point-to-point link */ 138#define IFF_SMART 0x20 /* (i) interface manages own routes */ 139#define IFF_DRV_RUNNING 0x40 /* (d) resources allocated */ 140#define IFF_NOARP 0x80 /* (n) no address resolution protocol */ 141#define IFF_PROMISC 0x100 /* (n) receive all packets */ 142#define IFF_ALLMULTI 0x200 /* (n) receive all multicast packets */ 143#define IFF_DRV_OACTIVE 0x400 /* (d) tx hardware queue is full */ 144#define IFF_SIMPLEX 0x800 /* (i) can't hear own transmissions */ 145#define IFF_LINK0 0x1000 /* per link layer defined bit */ 146#define IFF_LINK1 0x2000 /* per link layer defined bit */ 147#define IFF_LINK2 0x4000 /* per link layer defined bit */ 148#define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 149#define IFF_MULTICAST 0x8000 /* (i) supports multicast */ 150#define IFF_CANTCONFIG 0x10000 /* (i) unconfigurable using ioctl(2) */ 151#define IFF_PPROMISC 0x20000 /* (n) user-requested promisc mode */ 152#define IFF_MONITOR 0x40000 /* (n) user-requested monitor mode */ 153#define IFF_STATICARP 0x80000 /* (n) static ARP */ 154#define IFF_DYING 0x200000 /* (n) interface is winding down */ 155#define IFF_RENAMING 0x400000 /* (n) interface is being renamed */ 156 157/* 158 * Old names for driver flags so that user space tools can continue to use 159 * the old (portable) names. 160 */ 161#ifndef _KERNEL 162#define IFF_RUNNING IFF_DRV_RUNNING 163#define IFF_OACTIVE IFF_DRV_OACTIVE 164#endif 165 166/* flags set internally only: */ 167#define IFF_CANTCHANGE \ 168 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_DRV_RUNNING|IFF_DRV_OACTIVE|\ 169 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_SMART|IFF_PROMISC|\ 170 IFF_DYING|IFF_CANTCONFIG) 171 172/* 173 * Values for if_link_state. 174 */ 175#define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */ 176#define LINK_STATE_DOWN 1 /* link is down */ 177#define LINK_STATE_UP 2 /* link is up */ 178 179/* 180 * Some convenience macros used for setting ifi_baudrate. 181 * XXX 1000 vs. 1024? --thorpej@netbsd.org 182 */ 183#define IF_Kbps(x) ((x) * 1000) /* kilobits/sec. */ 184#define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ 185#define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ 186 187/* 188 * Capabilities that interfaces can advertise. 189 * 190 * struct ifnet.if_capabilities 191 * contains the optional features & capabilities a particular interface 192 * supports (not only the driver but also the detected hw revision). 193 * Capabilities are defined by IFCAP_* below. 194 * struct ifnet.if_capenable 195 * contains the enabled (either by default or through ifconfig) optional 196 * features & capabilities on this interface. 197 * Capabilities are defined by IFCAP_* below. 198 * struct if_data.ifi_hwassist in mbuf CSUM_ flag form, controlled by above 199 * contains the enabled optional feature & capabilites that can be used 200 * individually per packet and are specified in the mbuf pkthdr.csum_flags 201 * field. IFCAP_* and CSUM_* do not match one to one and CSUM_* may be 202 * more detailed or differenciated than IFCAP_*. 203 * Hwassist features are defined CSUM_* in sys/mbuf.h 204 * 205 * Capabilities that cannot be arbitrarily changed with ifconfig/ioctl 206 * are listed in IFCAP_CANTCHANGE, similar to IFF_CANTCHANGE. 207 * This is not strictly necessary because the common code never 208 * changes capabilities, and it is left to the individual driver 209 * to do the right thing. However, having the filter here 210 * avoids replication of the same code in all individual drivers. 211 */ 212#define IFCAP_RXCSUM 0x00001 /* can offload checksum on RX */ 213#define IFCAP_TXCSUM 0x00002 /* can offload checksum on TX */ 214#define IFCAP_NETCONS 0x00004 /* can be a network console */ 215#define IFCAP_VLAN_MTU 0x00008 /* VLAN-compatible MTU */ 216#define IFCAP_VLAN_HWTAGGING 0x00010 /* hardware VLAN tag support */ 217#define IFCAP_JUMBO_MTU 0x00020 /* 9000 byte MTU supported */ 218#define IFCAP_POLLING 0x00040 /* driver supports polling */ 219#define IFCAP_VLAN_HWCSUM 0x00080 /* can do IFCAP_HWCSUM on VLANs */ 220#define IFCAP_TSO4 0x00100 /* can do TCP Segmentation Offload */ 221#define IFCAP_TSO6 0x00200 /* can do TCP6 Segmentation Offload */ 222#define IFCAP_LRO 0x00400 /* can do Large Receive Offload */ 223#define IFCAP_WOL_UCAST 0x00800 /* wake on any unicast frame */ 224#define IFCAP_WOL_MCAST 0x01000 /* wake on any multicast frame */ 225#define IFCAP_WOL_MAGIC 0x02000 /* wake on any Magic Packet */ 226#define IFCAP_TOE4 0x04000 /* interface can offload TCP */ 227#define IFCAP_TOE6 0x08000 /* interface can offload TCP6 */ 228#define IFCAP_VLAN_HWFILTER 0x10000 /* interface hw can filter vlan tag */ 229#define IFCAP_POLLING_NOCOUNT 0x20000 /* polling ticks cannot be fragmented */ 230#define IFCAP_VLAN_HWTSO 0x40000 /* can do IFCAP_TSO on VLANs */ 231#define IFCAP_LINKSTATE 0x80000 /* the runtime link state is dynamic */ 232#define IFCAP_NETMAP 0x100000 /* netmap mode supported/enabled */ 233#define IFCAP_RXCSUM_IPV6 0x200000 /* can offload checksum on IPv6 RX */ 234#define IFCAP_TXCSUM_IPV6 0x400000 /* can offload checksum on IPv6 TX */ 235 236#define IFCAP_HWCSUM_IPV6 (IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6) 237 238#define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) 239#define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) 240#define IFCAP_WOL (IFCAP_WOL_UCAST | IFCAP_WOL_MCAST | IFCAP_WOL_MAGIC) 241#define IFCAP_TOE (IFCAP_TOE4 | IFCAP_TOE6) 242 243#define IFCAP_CANTCHANGE (IFCAP_NETMAP) 244 245#define IFQ_MAXLEN 50 246#define IFNET_SLOWHZ 1 /* granularity is 1 second */ 247 248/* 249 * Message format for use in obtaining information about interfaces 250 * from getkerninfo and the routing socket 251 * For the new, extensible interface see struct if_msghdrl below. 252 */ 253struct if_msghdr { 254 u_short ifm_msglen; /* to skip over non-understood messages */ 255 u_char ifm_version; /* future binary compatibility */ 256 u_char ifm_type; /* message type */ 257 int ifm_addrs; /* like rtm_addrs */ 258 int ifm_flags; /* value of if_flags */ 259 u_short ifm_index; /* index for associated ifp */ 260 struct if_data ifm_data;/* statistics and other data about if */ 261}; 262 263/* 264 * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is 265 * extensible after ifm_data_off or within ifm_data. Both the if_msghdr and 266 * if_data now have a member field detailing the struct length in addition to 267 * the routing message length. Macros are provided to find the start of 268 * ifm_data and the start of the socket address strucutres immediately following 269 * struct if_msghdrl given a pointer to struct if_msghdrl. 270 */ 271#define IF_MSGHDRL_IFM_DATA(_l) \ 272 (struct if_data *)((char *)(_l) + (_l)->ifm_data_off) 273#define IF_MSGHDRL_RTA(_l) \ 274 (void *)((uintptr_t)(_l) + (_l)->ifm_len) 275struct if_msghdrl { 276 u_short ifm_msglen; /* to skip over non-understood messages */ 277 u_char ifm_version; /* future binary compatibility */ 278 u_char ifm_type; /* message type */ 279 int ifm_addrs; /* like rtm_addrs */ 280 int ifm_flags; /* value of if_flags */ 281 u_short ifm_index; /* index for associated ifp */ 282 u_short _ifm_spare1; /* spare space to grow if_index, see if_var.h */ 283 u_short ifm_len; /* length of if_msghdrl incl. if_data */ 284 u_short ifm_data_off; /* offset of if_data from beginning */ 285 struct if_data ifm_data;/* statistics and other data about if */ 286}; 287 288/* 289 * Message format for use in obtaining information about interface addresses 290 * from getkerninfo and the routing socket 291 * For the new, extensible interface see struct ifa_msghdrl below. 292 */ 293struct ifa_msghdr { 294 u_short ifam_msglen; /* to skip over non-understood messages */ 295 u_char ifam_version; /* future binary compatibility */ 296 u_char ifam_type; /* message type */ 297 int ifam_addrs; /* like rtm_addrs */ 298 int ifam_flags; /* value of ifa_flags */ 299 u_short ifam_index; /* index for associated ifp */ 300 int ifam_metric; /* value of ifa_metric */ 301}; 302 303/* 304 * The 'l' version shall be used by new interfaces, like NET_RT_IFLISTL. It is 305 * extensible after ifam_metric or within ifam_data. Both the ifa_msghdrl and 306 * if_data now have a member field detailing the struct length in addition to 307 * the routing message length. Macros are provided to find the start of 308 * ifm_data and the start of the socket address strucutres immediately following 309 * struct ifa_msghdrl given a pointer to struct ifa_msghdrl. 310 */ 311#define IFA_MSGHDRL_IFAM_DATA(_l) \ 312 (struct if_data *)((char *)(_l) + (_l)->ifam_data_off) 313#define IFA_MSGHDRL_RTA(_l) \ 314 (void *)((uintptr_t)(_l) + (_l)->ifam_len) 315struct ifa_msghdrl { 316 u_short ifam_msglen; /* to skip over non-understood messages */ 317 u_char ifam_version; /* future binary compatibility */ 318 u_char ifam_type; /* message type */ 319 int ifam_addrs; /* like rtm_addrs */ 320 int ifam_flags; /* value of ifa_flags */ 321 u_short ifam_index; /* index for associated ifp */ 322 u_short _ifam_spare1; /* spare space to grow if_index, see if_var.h */ 323 u_short ifam_len; /* length of ifa_msghdrl incl. if_data */ 324 u_short ifam_data_off; /* offset of if_data from beginning */ 325 int ifam_metric; /* value of ifa_metric */ 326 struct if_data ifam_data;/* statistics and other data about if or 327 * address */ 328}; 329 330/* 331 * Message format for use in obtaining information about multicast addresses 332 * from the routing socket 333 */ 334struct ifma_msghdr { 335 u_short ifmam_msglen; /* to skip over non-understood messages */ 336 u_char ifmam_version; /* future binary compatibility */ 337 u_char ifmam_type; /* message type */ 338 int ifmam_addrs; /* like rtm_addrs */ 339 int ifmam_flags; /* value of ifa_flags */ 340 u_short ifmam_index; /* index for associated ifp */ 341}; 342 343/* 344 * Message format announcing the arrival or departure of a network interface. 345 */ 346struct if_announcemsghdr { 347 u_short ifan_msglen; /* to skip over non-understood messages */ 348 u_char ifan_version; /* future binary compatibility */ 349 u_char ifan_type; /* message type */ 350 u_short ifan_index; /* index for associated ifp */ 351 char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 352 u_short ifan_what; /* what type of announcement */ 353}; 354 355#define IFAN_ARRIVAL 0 /* interface arrival */ 356#define IFAN_DEPARTURE 1 /* interface departure */ 357 358/* 359 * Buffer with length to be used in SIOCGIFDESCR/SIOCSIFDESCR requests 360 */ 361struct ifreq_buffer { 362 size_t length; 363 void *buffer; 364}; 365 366/* 367 * Interface request structure used for socket 368 * ioctl's. All interface ioctl's must have parameter 369 * definitions which begin with ifr_name. The 370 * remainder may be interface specific. 371 */ 372struct ifreq { 373 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 374 union { 375 struct sockaddr ifru_addr; 376 struct sockaddr ifru_dstaddr; 377 struct sockaddr ifru_broadaddr; 378 struct ifreq_buffer ifru_buffer; 379 short ifru_flags[2]; 380 short ifru_index; 381 int ifru_jid; 382 int ifru_metric; 383 int ifru_mtu; 384 int ifru_phys; 385 int ifru_media; 386 caddr_t ifru_data; 387 int ifru_cap[2]; 388 u_int ifru_fib; 389 } ifr_ifru; 390#define ifr_addr ifr_ifru.ifru_addr /* address */ 391#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 392#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 393#define ifr_buffer ifr_ifru.ifru_buffer /* user supplied buffer with its length */ 394#define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */ 395#define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */ 396#define ifr_jid ifr_ifru.ifru_jid /* jail/vnet */ 397#define ifr_metric ifr_ifru.ifru_metric /* metric */ 398#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 399#define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 400#define ifr_media ifr_ifru.ifru_media /* physical media */ 401#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 402#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ 403#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ 404#define ifr_index ifr_ifru.ifru_index /* interface index */ 405#define ifr_fib ifr_ifru.ifru_fib /* interface fib */ 406}; 407 408#define _SIZEOF_ADDR_IFREQ(ifr) \ 409 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \ 410 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \ 411 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq)) 412 413struct ifaliasreq { 414 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 415 struct sockaddr ifra_addr; 416 struct sockaddr ifra_broadaddr; 417 struct sockaddr ifra_mask; 418}; 419 420struct ifmediareq { 421 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 422 int ifm_current; /* current media options */ 423 int ifm_mask; /* don't care mask */ 424 int ifm_status; /* media status */ 425 int ifm_active; /* active options */ 426 int ifm_count; /* # entries in ifm_ulist array */ 427 int *ifm_ulist; /* media words */ 428}; 429 430struct ifdrv { 431 char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 432 unsigned long ifd_cmd; 433 size_t ifd_len; 434 void *ifd_data; 435}; 436 437/* 438 * Structure used to retrieve aux status data from interfaces. 439 * Kernel suppliers to this interface should respect the formatting 440 * needed by ifconfig(8): each line starts with a TAB and ends with 441 * a newline. The canonical example to copy and paste is in if_tun.c. 442 */ 443 444#define IFSTATMAX 800 /* 10 lines of text */ 445struct ifstat { 446 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 447 char ascii[IFSTATMAX + 1]; 448}; 449 450/* 451 * Structure used in SIOCGIFCONF request. 452 * Used to retrieve interface configuration 453 * for machine (useful for programs which 454 * must know all networks accessible). 455 */ 456struct ifconf { 457 int ifc_len; /* size of associated buffer */ 458 union { 459 caddr_t ifcu_buf; 460 struct ifreq *ifcu_req; 461 } ifc_ifcu; 462#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 463#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 464}; 465 466/* 467 * interface groups 468 */ 469 470#define IFG_ALL "all" /* group contains all interfaces */ 471/* XXX: will we implement this? */ 472#define IFG_EGRESS "egress" /* if(s) default route(s) point to */ 473 474struct ifg_req { 475 union { 476 char ifgrqu_group[IFNAMSIZ]; 477 char ifgrqu_member[IFNAMSIZ]; 478 } ifgrq_ifgrqu; 479#define ifgrq_group ifgrq_ifgrqu.ifgrqu_group 480#define ifgrq_member ifgrq_ifgrqu.ifgrqu_member 481}; 482 483/* 484 * Used to lookup groups for an interface 485 */ 486struct ifgroupreq { 487 char ifgr_name[IFNAMSIZ]; 488 u_int ifgr_len; 489 union { 490 char ifgru_group[IFNAMSIZ]; 491 struct ifg_req *ifgru_groups; 492 } ifgr_ifgru; 493#define ifgr_group ifgr_ifgru.ifgru_group 494#define ifgr_groups ifgr_ifgru.ifgru_groups 495}; 496 497/* 498 * Structure for SIOC[AGD]LIFADDR 499 */ 500struct if_laddrreq { 501 char iflr_name[IFNAMSIZ]; 502 u_int flags; 503#define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */ 504 u_int prefixlen; /* in/out */ 505 struct sockaddr_storage addr; /* in/out */ 506 struct sockaddr_storage dstaddr; /* out */ 507}; 508 509#endif /* __BSD_VISIBLE */ 510 511#ifdef _KERNEL 512#ifdef MALLOC_DECLARE 513MALLOC_DECLARE(M_IFADDR); 514MALLOC_DECLARE(M_IFMADDR); 515#endif 516#endif 517 518#ifndef _KERNEL 519struct if_nameindex { 520 unsigned int if_index; /* 1, 2, ... */ 521 char *if_name; /* null terminated name: "le0", ... */ 522}; 523 524__BEGIN_DECLS 525void if_freenameindex(struct if_nameindex *); 526char *if_indextoname(unsigned int, char *); 527struct if_nameindex *if_nameindex(void); 528unsigned int if_nametoindex(const char *); 529__END_DECLS 530#endif 531 532#ifdef _KERNEL 533/* XXX - this should go away soon. */ 534#include <net/if_var.h> 535#endif 536 537#endif /* !_NET_IF_H_ */ 538