if.h revision 226610
1218822Sdim/*- 233965Sjdp * Copyright (c) 1982, 1986, 1989, 1993 3218822Sdim * The Regents of the University of California. All rights reserved. 4218822Sdim * 5218822Sdim * Redistribution and use in source and binary forms, with or without 638889Sjdp * modification, are permitted provided that the following conditions 7218822Sdim * are met: 8218822Sdim * 1. Redistributions of source code must retain the above copyright 9218822Sdim * notice, this list of conditions and the following disclaimer. 1038889Sjdp * 2. Redistributions in binary form must reproduce the above copyright 11218822Sdim * notice, this list of conditions and the following disclaimer in the 12218822Sdim * documentation and/or other materials provided with the distribution. 1333965Sjdp * 4. Neither the name of the University nor the names of its contributors 14218822Sdim * may be used to endorse or promote products derived from this software 15218822Sdim * without specific prior written permission. 16218822Sdim * 1733965Sjdp * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18218822Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19218822Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20218822Sdim * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2133965Sjdp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22218822Sdim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23218822Sdim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24218822Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2533965Sjdp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26218822Sdim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27218822Sdim * SUCH DAMAGE. 28218822Sdim * 2960484Sobrien * @(#)if.h 8.1 (Berkeley) 6/10/93 30218822Sdim * $FreeBSD: head/sys/net/if.h 226610 2011-10-21 12:58:34Z ed $ 31218822Sdim */ 32218822Sdim 3360484Sobrien#ifndef _NET_IF_H_ 34218822Sdim#define _NET_IF_H_ 35218822Sdim 36218822Sdim#include <sys/cdefs.h> 3760484Sobrien 38218822Sdim#ifdef _KERNEL 39218822Sdim#include <sys/queue.h> 40218822Sdim#endif 4160484Sobrien 42218822Sdim#if __BSD_VISIBLE 43218822Sdim/* 44218822Sdim * <net/if.h> does not depend on <sys/time.h> on most other systems. This 4560484Sobrien * helps userland compatibility. (struct timeval ifi_lastchange) 46218822Sdim * The same holds for <sys/socket.h>. (struct sockaddr ifru_addr) 47218822Sdim */ 48218822Sdim#ifndef _KERNEL 4933965Sjdp#include <sys/time.h> 50218822Sdim#include <sys/socket.h> 51218822Sdim#endif 52218822Sdim 5333965Sjdpstruct ifnet; 54218822Sdim#endif 55218822Sdim 56218822Sdim/* 5733965Sjdp * Length of interface external name, including terminating '\0'. 58218822Sdim * Note: this is the same size as a generic device's external name. 59218822Sdim */ 60218822Sdim#define IF_NAMESIZE 16 6133965Sjdp#if __BSD_VISIBLE 62218822Sdim#define IFNAMSIZ IF_NAMESIZE 63218822Sdim#define IF_MAXUNIT 0x7fff /* historical value */ 64218822Sdim#endif 6533965Sjdp#if __BSD_VISIBLE 66218822Sdim 67218822Sdim/* 68218822Sdim * Structure used to query names of interface cloners. 69218822Sdim */ 7033965Sjdp 7133965Sjdpstruct if_clonereq { 72218822Sdim int ifcr_total; /* total cloners (out) */ 73218822Sdim int ifcr_count; /* room for this many in user buffer */ 74218822Sdim char *ifcr_buffer; /* buffer for cloner names */ 75218822Sdim}; 7638889Sjdp 7738889Sjdp/* 78218822Sdim * Structure describing information about an interface 79218822Sdim * which may be of interest to management entities. 80218822Sdim */ 81218822Sdimstruct if_data { 82130561Sobrien /* generic interface information */ 83130561Sobrien u_char ifi_type; /* ethernet, tokenring, etc */ 84218822Sdim u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */ 85130561Sobrien u_char ifi_addrlen; /* media address length */ 86130561Sobrien u_char ifi_hdrlen; /* media header length */ 87218822Sdim u_char ifi_link_state; /* current link state */ 88130561Sobrien u_char ifi_spare_char1; /* spare byte */ 89130561Sobrien u_char ifi_spare_char2; /* spare byte */ 90218822Sdim u_char ifi_datalen; /* length of this data struct */ 91130561Sobrien u_long ifi_mtu; /* maximum transmission unit */ 92130561Sobrien u_long ifi_metric; /* routing metric (external only) */ 93218822Sdim u_long ifi_baudrate; /* linespeed */ 9460484Sobrien /* volatile statistics */ 9560484Sobrien u_long ifi_ipackets; /* packets received on interface */ 96218822Sdim u_long ifi_ierrors; /* input errors on interface */ 9733965Sjdp u_long ifi_opackets; /* packets sent on interface */ 9833965Sjdp u_long ifi_oerrors; /* output errors on interface */ 99218822Sdim u_long ifi_collisions; /* collisions on csma interfaces */ 10060484Sobrien u_long ifi_ibytes; /* total number of octets received */ 10160484Sobrien u_long ifi_obytes; /* total number of octets sent */ 102218822Sdim u_long ifi_imcasts; /* packets received via multicast */ 103218822Sdim u_long ifi_omcasts; /* packets sent via multicast */ 10433965Sjdp u_long ifi_iqdrops; /* dropped on input, this interface */ 105218822Sdim u_long ifi_noproto; /* destined for unsupported protocol */ 106218822Sdim u_long ifi_hwassist; /* HW offload capabilities, see IFCAP */ 10733965Sjdp time_t ifi_epoch; /* uptime at attach or stat reset */ 108218822Sdim struct timeval ifi_lastchange; /* time of last administrative change */ 109218822Sdim}; 11060484Sobrien 111218822Sdim/*- 112218822Sdim * Interface flags are of two types: network stack owned flags, and driver 11360484Sobrien * owned flags. Historically, these values were stored in the same ifnet 114218822Sdim * flags field, but with the advent of fine-grained locking, they have been 115218822Sdim * broken out such that the network stack is responsible for synchronizing 11660484Sobrien * the stack-owned fields, and the device driver the device-owned fields. 117218822Sdim * Both halves can perform lockless reads of the other half's field, subject 118218822Sdim * to accepting the involved races. 11933965Sjdp * 120218822Sdim * Both sets of flags come from the same number space, and should not be 121218822Sdim * permitted to conflict, as they are exposed to user space via a single 12260484Sobrien * field. 123218822Sdim * 124218822Sdim * The following symbols identify read and write requirements for fields: 12560484Sobrien * 126218822Sdim * (i) if_flags field set by device driver before attach, read-only there 127218822Sdim * after. 12860484Sobrien * (n) if_flags field written only by the network stack, read by either the 129218822Sdim * stack or driver. 130218822Sdim * (d) if_drv_flags field written only by the device driver, read by either 13160484Sobrien * the stack or driver. 132218822Sdim */ 133218822Sdim#define IFF_UP 0x1 /* (n) interface is up */ 134130561Sobrien#define IFF_BROADCAST 0x2 /* (i) broadcast address valid */ 135218822Sdim#define IFF_DEBUG 0x4 /* (n) turn on debugging */ 136218822Sdim#define IFF_LOOPBACK 0x8 /* (i) is a loopback net */ 13733965Sjdp#define IFF_POINTOPOINT 0x10 /* (i) is a point-to-point link */ 138218822Sdim#define IFF_SMART 0x20 /* (i) interface manages own routes */ 139218822Sdim#define IFF_DRV_RUNNING 0x40 /* (d) resources allocated */ 14060484Sobrien#define IFF_NOARP 0x80 /* (n) no address resolution protocol */ 141218822Sdim#define IFF_PROMISC 0x100 /* (n) receive all packets */ 142218822Sdim#define IFF_ALLMULTI 0x200 /* (n) receive all multicast packets */ 14360484Sobrien#define IFF_DRV_OACTIVE 0x400 /* (d) tx hardware queue is full */ 144218822Sdim#define IFF_SIMPLEX 0x800 /* (i) can't hear own transmissions */ 145218822Sdim#define IFF_LINK0 0x1000 /* per link layer defined bit */ 14633965Sjdp#define IFF_LINK1 0x2000 /* per link layer defined bit */ 147218822Sdim#define IFF_LINK2 0x4000 /* per link layer defined bit */ 148218822Sdim#define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */ 14960484Sobrien#define IFF_MULTICAST 0x8000 /* (i) supports multicast */ 150218822Sdim#define IFF_CANTCONFIG 0x10000 /* (i) unconfigurable using ioctl(2) */ 151218822Sdim#define IFF_PPROMISC 0x20000 /* (n) user-requested promisc mode */ 15260484Sobrien#define IFF_MONITOR 0x40000 /* (n) user-requested monitor mode */ 153218822Sdim#define IFF_STATICARP 0x80000 /* (n) static ARP */ 154218822Sdim#define IFF_DYING 0x200000 /* (n) interface is winding down */ 15560484Sobrien#define IFF_RENAMING 0x400000 /* (n) interface is being renamed */ 156218822Sdim 157218822Sdim/* 15860484Sobrien * Old names for driver flags so that user space tools can continue to use 159218822Sdim * the old (portable) names. 160218822Sdim */ 16160484Sobrien#ifndef _KERNEL 162218822Sdim#define IFF_RUNNING IFF_DRV_RUNNING 163218822Sdim#define IFF_OACTIVE IFF_DRV_OACTIVE 164218822Sdim#endif 165218822Sdim 166218822Sdim/* flags set internally only: */ 167218822Sdim#define IFF_CANTCHANGE \ 168218822Sdim (IFF_BROADCAST|IFF_POINTOPOINT|IFF_DRV_RUNNING|IFF_DRV_OACTIVE|\ 16933965Sjdp IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_SMART|IFF_PROMISC|\ 17033965Sjdp IFF_DYING|IFF_CANTCONFIG) 171218822Sdim 172218822Sdim/* 173218822Sdim * Values for if_link_state. 174218822Sdim */ 17533965Sjdp#define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */ 17633965Sjdp#define LINK_STATE_DOWN 1 /* link is down */ 177218822Sdim#define LINK_STATE_UP 2 /* link is up */ 178218822Sdim 179218822Sdim/* 180218822Sdim * Some convenience macros used for setting ifi_baudrate. 18133965Sjdp * XXX 1000 vs. 1024? --thorpej@netbsd.org 18233965Sjdp */ 183218822Sdim#define IF_Kbps(x) ((x) * 1000) /* kilobits/sec. */ 184218822Sdim#define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */ 18533965Sjdp#define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */ 186218822Sdim 187218822Sdim/* 188218822Sdim * Capabilities that interfaces can advertise. 189218822Sdim * 190218822Sdim * struct ifnet.if_capabilities 191218822Sdim * contains the optional features & capabilities a particular interface 192218822Sdim * supports (not only the driver but also the detected hw revision). 193218822Sdim * Capabilities are defined by IFCAP_* below. 19460484Sobrien * struct ifnet.if_capenable 19560484Sobrien * contains the enabled (either by default or through ifconfig) optional 196218822Sdim * features & capabilities on this interface. 19733965Sjdp * Capabilities are defined by IFCAP_* below. 19833965Sjdp * struct if_data.ifi_hwassist in mbuf CSUM_ flag form, controlled by above 199218822Sdim * contains the enabled optional feature & capabilites that can be used 200218822Sdim * individually per packet and are specified in the mbuf pkthdr.csum_flags 20160484Sobrien * field. IFCAP_* and CSUM_* do not match one to one and CSUM_* may be 20260484Sobrien * more detailed or differenciated than IFCAP_*. 203218822Sdim * Hwassist features are defined CSUM_* in sys/mbuf.h 20460484Sobrien * 20560484Sobrien * Capabilities that cannot be arbitrarily changed with ifconfig/ioctl 206218822Sdim * are listed in IFCAP_CANTCHANGE, similar to IFF_CANTCHANGE. 207218822Sdim * This is not strictly necessary because the common code never 208218822Sdim * changes capabilities, and it is left to the individual driver 209218822Sdim * to do the right thing. However, having the filter here 21033965Sjdp * avoids replication of the same code in all individual drivers. 21133965Sjdp */ 212218822Sdim#define IFCAP_RXCSUM 0x00001 /* can offload checksum on RX */ 213218822Sdim#define IFCAP_TXCSUM 0x00002 /* can offload checksum on TX */ 214218822Sdim#define IFCAP_NETCONS 0x00004 /* can be a network console */ 215218822Sdim#define IFCAP_VLAN_MTU 0x00008 /* VLAN-compatible MTU */ 21633965Sjdp#define IFCAP_VLAN_HWTAGGING 0x00010 /* hardware VLAN tag support */ 21733965Sjdp#define IFCAP_JUMBO_MTU 0x00020 /* 9000 byte MTU supported */ 218218822Sdim#define IFCAP_POLLING 0x00040 /* driver supports polling */ 21933965Sjdp#define IFCAP_VLAN_HWCSUM 0x00080 /* can do IFCAP_HWCSUM on VLANs */ 22060484Sobrien#define IFCAP_TSO4 0x00100 /* can do TCP Segmentation Offload */ 221218822Sdim#define IFCAP_TSO6 0x00200 /* can do TCP6 Segmentation Offload */ 222218822Sdim#define IFCAP_LRO 0x00400 /* can do Large Receive Offload */ 22360484Sobrien#define IFCAP_WOL_UCAST 0x00800 /* wake on any unicast frame */ 224218822Sdim#define IFCAP_WOL_MCAST 0x01000 /* wake on any multicast frame */ 225218822Sdim#define IFCAP_WOL_MAGIC 0x02000 /* wake on any Magic Packet */ 226218822Sdim#define IFCAP_TOE4 0x04000 /* interface can offload TCP */ 227218822Sdim#define IFCAP_TOE6 0x08000 /* interface can offload TCP6 */ 22860484Sobrien#define IFCAP_VLAN_HWFILTER 0x10000 /* interface hw can filter vlan tag */ 22960484Sobrien#define IFCAP_POLLING_NOCOUNT 0x20000 /* polling ticks cannot be fragmented */ 23060484Sobrien#define IFCAP_VLAN_HWTSO 0x40000 /* can do IFCAP_TSO on VLANs */ 231218822Sdim#define IFCAP_LINKSTATE 0x80000 /* the runtime link state is dynamic */ 232218822Sdim#define IFCAP_NETMAP 0x100000 /* netmap mode supported/enabled */ 23360484Sobrien 234218822Sdim#define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM) 235218822Sdim#define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6) 23660484Sobrien#define IFCAP_WOL (IFCAP_WOL_UCAST | IFCAP_WOL_MCAST | IFCAP_WOL_MAGIC) 237218822Sdim#define IFCAP_TOE (IFCAP_TOE4 | IFCAP_TOE6) 238218822Sdim 23960484Sobrien#define IFCAP_CANTCHANGE (IFCAP_NETMAP) 240218822Sdim 241218822Sdim#define IFQ_MAXLEN 50 24260484Sobrien#define IFNET_SLOWHZ 1 /* granularity is 1 second */ 243218822Sdim 244218822Sdim/* 24560484Sobrien * Message format for use in obtaining information about interfaces 246218822Sdim * from getkerninfo and the routing socket 247218822Sdim */ 248130561Sobrienstruct if_msghdr { 249218822Sdim u_short ifm_msglen; /* to skip over non-understood messages */ 250218822Sdim u_char ifm_version; /* future binary compatibility */ 251218822Sdim u_char ifm_type; /* message type */ 252218822Sdim int ifm_addrs; /* like rtm_addrs */ 253130561Sobrien int ifm_flags; /* value of if_flags */ 254130561Sobrien u_short ifm_index; /* index for associated ifp */ 255218822Sdim struct if_data ifm_data;/* statistics and other data about if */ 256218822Sdim}; 25760484Sobrien 258218822Sdim/* 259218822Sdim * Message format for use in obtaining information about interface addresses 26060484Sobrien * from getkerninfo and the routing socket 261218822Sdim */ 262218822Sdimstruct ifa_msghdr { 26360484Sobrien u_short ifam_msglen; /* to skip over non-understood messages */ 264218822Sdim u_char ifam_version; /* future binary compatibility */ 265218822Sdim u_char ifam_type; /* message type */ 26660484Sobrien int ifam_addrs; /* like rtm_addrs */ 267218822Sdim int ifam_flags; /* value of ifa_flags */ 268218822Sdim u_short ifam_index; /* index for associated ifp */ 26960484Sobrien int ifam_metric; /* value of ifa_metric */ 270218822Sdim}; 271218822Sdim 27260484Sobrien/* 273218822Sdim * Message format for use in obtaining information about multicast addresses 274218822Sdim * from the routing socket 27599461Sobrien */ 27660484Sobrienstruct ifma_msghdr { 27760484Sobrien u_short ifmam_msglen; /* to skip over non-understood messages */ 27860484Sobrien u_char ifmam_version; /* future binary compatibility */ 279218822Sdim u_char ifmam_type; /* message type */ 280218822Sdim int ifmam_addrs; /* like rtm_addrs */ 281130561Sobrien int ifmam_flags; /* value of ifa_flags */ 28260484Sobrien u_short ifmam_index; /* index for associated ifp */ 28360484Sobrien}; 28460484Sobrien 285218822Sdim/* 286218822Sdim * Message format announcing the arrival or departure of a network interface. 287218822Sdim */ 288218822Sdimstruct if_announcemsghdr { 289218822Sdim u_short ifan_msglen; /* to skip over non-understood messages */ 290218822Sdim u_char ifan_version; /* future binary compatibility */ 291218822Sdim u_char ifan_type; /* message type */ 292218822Sdim u_short ifan_index; /* index for associated ifp */ 293218822Sdim char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 294218822Sdim u_short ifan_what; /* what type of announcement */ 295}; 296 297#define IFAN_ARRIVAL 0 /* interface arrival */ 298#define IFAN_DEPARTURE 1 /* interface departure */ 299 300/* 301 * Buffer with length to be used in SIOCGIFDESCR/SIOCSIFDESCR requests 302 */ 303struct ifreq_buffer { 304 size_t length; 305 void *buffer; 306}; 307 308/* 309 * Interface request structure used for socket 310 * ioctl's. All interface ioctl's must have parameter 311 * definitions which begin with ifr_name. The 312 * remainder may be interface specific. 313 */ 314struct ifreq { 315 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 316 union { 317 struct sockaddr ifru_addr; 318 struct sockaddr ifru_dstaddr; 319 struct sockaddr ifru_broadaddr; 320 struct ifreq_buffer ifru_buffer; 321 short ifru_flags[2]; 322 short ifru_index; 323 int ifru_jid; 324 int ifru_metric; 325 int ifru_mtu; 326 int ifru_phys; 327 int ifru_media; 328 caddr_t ifru_data; 329 int ifru_cap[2]; 330 u_int ifru_fib; 331 } ifr_ifru; 332#define ifr_addr ifr_ifru.ifru_addr /* address */ 333#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */ 334#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */ 335#define ifr_buffer ifr_ifru.ifru_buffer /* user supplied buffer with its length */ 336#define ifr_flags ifr_ifru.ifru_flags[0] /* flags (low 16 bits) */ 337#define ifr_flagshigh ifr_ifru.ifru_flags[1] /* flags (high 16 bits) */ 338#define ifr_jid ifr_ifru.ifru_jid /* jail/vnet */ 339#define ifr_metric ifr_ifru.ifru_metric /* metric */ 340#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ 341#define ifr_phys ifr_ifru.ifru_phys /* physical wire */ 342#define ifr_media ifr_ifru.ifru_media /* physical media */ 343#define ifr_data ifr_ifru.ifru_data /* for use by interface */ 344#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ 345#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ 346#define ifr_index ifr_ifru.ifru_index /* interface index */ 347#define ifr_fib ifr_ifru.ifru_fib /* interface fib */ 348}; 349 350#define _SIZEOF_ADDR_IFREQ(ifr) \ 351 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \ 352 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \ 353 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq)) 354 355struct ifaliasreq { 356 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 357 struct sockaddr ifra_addr; 358 struct sockaddr ifra_broadaddr; 359 struct sockaddr ifra_mask; 360}; 361 362struct ifmediareq { 363 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 364 int ifm_current; /* current media options */ 365 int ifm_mask; /* don't care mask */ 366 int ifm_status; /* media status */ 367 int ifm_active; /* active options */ 368 int ifm_count; /* # entries in ifm_ulist array */ 369 int *ifm_ulist; /* media words */ 370}; 371 372struct ifdrv { 373 char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 374 unsigned long ifd_cmd; 375 size_t ifd_len; 376 void *ifd_data; 377}; 378 379/* 380 * Structure used to retrieve aux status data from interfaces. 381 * Kernel suppliers to this interface should respect the formatting 382 * needed by ifconfig(8): each line starts with a TAB and ends with 383 * a newline. The canonical example to copy and paste is in if_tun.c. 384 */ 385 386#define IFSTATMAX 800 /* 10 lines of text */ 387struct ifstat { 388 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 389 char ascii[IFSTATMAX + 1]; 390}; 391 392/* 393 * Structure used in SIOCGIFCONF request. 394 * Used to retrieve interface configuration 395 * for machine (useful for programs which 396 * must know all networks accessible). 397 */ 398struct ifconf { 399 int ifc_len; /* size of associated buffer */ 400 union { 401 caddr_t ifcu_buf; 402 struct ifreq *ifcu_req; 403 } ifc_ifcu; 404#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */ 405#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */ 406}; 407 408/* 409 * interface groups 410 */ 411 412#define IFG_ALL "all" /* group contains all interfaces */ 413/* XXX: will we implement this? */ 414#define IFG_EGRESS "egress" /* if(s) default route(s) point to */ 415 416struct ifg_req { 417 union { 418 char ifgrqu_group[IFNAMSIZ]; 419 char ifgrqu_member[IFNAMSIZ]; 420 } ifgrq_ifgrqu; 421#define ifgrq_group ifgrq_ifgrqu.ifgrqu_group 422#define ifgrq_member ifgrq_ifgrqu.ifgrqu_member 423}; 424 425/* 426 * Used to lookup groups for an interface 427 */ 428struct ifgroupreq { 429 char ifgr_name[IFNAMSIZ]; 430 u_int ifgr_len; 431 union { 432 char ifgru_group[IFNAMSIZ]; 433 struct ifg_req *ifgru_groups; 434 } ifgr_ifgru; 435#define ifgr_group ifgr_ifgru.ifgru_group 436#define ifgr_groups ifgr_ifgru.ifgru_groups 437}; 438 439/* 440 * Structure for SIOC[AGD]LIFADDR 441 */ 442struct if_laddrreq { 443 char iflr_name[IFNAMSIZ]; 444 u_int flags; 445#define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */ 446 u_int prefixlen; /* in/out */ 447 struct sockaddr_storage addr; /* in/out */ 448 struct sockaddr_storage dstaddr; /* out */ 449}; 450 451#endif /* __BSD_VISIBLE */ 452 453#ifdef _KERNEL 454#ifdef MALLOC_DECLARE 455MALLOC_DECLARE(M_IFADDR); 456MALLOC_DECLARE(M_IFMADDR); 457#endif 458#endif 459 460#ifndef _KERNEL 461struct if_nameindex { 462 unsigned int if_index; /* 1, 2, ... */ 463 char *if_name; /* null terminated name: "le0", ... */ 464}; 465 466__BEGIN_DECLS 467void if_freenameindex(struct if_nameindex *); 468char *if_indextoname(unsigned int, char *); 469struct if_nameindex *if_nameindex(void); 470unsigned int if_nametoindex(const char *); 471__END_DECLS 472#endif 473 474#ifdef _KERNEL 475/* XXX - this should go away soon. */ 476#include <net/if_var.h> 477#endif 478 479#endif /* !_NET_IF_H_ */ 480