1/* $OpenBSD: if.h,v 1.223 2025/12/09 03:33:06 dlg Exp $ */
2/* $NetBSD: if.h,v 1.23 1996/05/07 02:40:27 thorpej Exp $ */
3
4/*
5 * Copyright (c) 1982, 1986, 1989, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)if.h 8.1 (Berkeley) 6/10/93
33 */
34
35#ifndef _NET_IF_H_
36#define _NET_IF_H_
37
38#include <sys/cdefs.h>
39
40/*
41 * Length of interface external name, including terminating '\0'.
42 * Note: this is the same size as a generic device's external name.
43 */
44#define IF_NAMESIZE 16
45
46struct if_nameindex {
47 unsigned int if_index;
48 char *if_name;
49};
50
51#ifndef _KERNEL
52__BEGIN_DECLS
53unsigned int if_nametoindex(const char *);
54char *if_indextoname(unsigned int, char *);
55struct if_nameindex *if_nameindex(void);
56void if_freenameindex(struct if_nameindex *);
57__END_DECLS
58#endif
59
60#if __BSD_VISIBLE
61
62#include <sys/types.h>
63#include <sys/time.h>
64#include <sys/socket.h>
65
66/*
67 * Structure used to query names of interface cloners.
68 */
69struct if_clonereq {
70 int ifcr_total; /* total cloners (out) */
71 int ifcr_count; /* room for this many in user buffer */
72 char *ifcr_buffer; /* buffer for cloner names */
73};
74
75#define MCLPOOLS 8 /* number of cluster pools */
76
77struct if_rxring {
78 int rxr_adjusted;
79 u_int rxr_alive;
80 u_int rxr_cwm;
81 u_int rxr_lwm;
82 u_int rxr_hwm;
83};
84
85struct if_rxring_info {
86 char ifr_name[16]; /* name of the ring */
87 u_int ifr_size; /* size of the packets on the ring */
88 struct if_rxring ifr_info;
89};
90
91/* Structure used in SIOCGIFRXR request. */
92struct if_rxrinfo {
93 u_int ifri_total;
94 struct if_rxring_info *ifri_entries;
95};
96
97/*
98 * Structure defining statistics and other data kept regarding a network
99 * interface.
100 */
101struct if_data {
102 /* generic interface information */
103 u_char ifi_type; /* ethernet, tokenring, etc. */
104 u_char ifi_addrlen; /* media address length */
105 u_char ifi_hdrlen; /* media header length */
106 u_char ifi_link_state; /* current link state */
107 u_int32_t ifi_mtu; /* maximum transmission unit */
108 u_int32_t ifi_metric; /* routing metric (external only) */
109 u_int32_t ifi_rdomain; /* routing instance */
110 u_int64_t ifi_baudrate; /* linespeed */
111 /* volatile statistics */
112 u_int64_t ifi_ipackets; /* packets received on interface */
113 u_int64_t ifi_ierrors; /* input errors on interface */
114 u_int64_t ifi_opackets; /* packets sent on interface */
115 u_int64_t ifi_oerrors; /* output errors on interface */
116 u_int64_t ifi_collisions; /* collisions on csma interfaces */
117 u_int64_t ifi_ibytes; /* total number of octets received */
118 u_int64_t ifi_obytes; /* total number of octets sent */
119 u_int64_t ifi_imcasts; /* packets received via multicast */
120 u_int64_t ifi_omcasts; /* packets sent via multicast */
121 u_int64_t ifi_iqdrops; /* dropped on input, this interface */
122 u_int64_t ifi_oqdrops; /* dropped on output, this interface */
123 u_int64_t ifi_noproto; /* destined for unsupported protocol */
124 u_int32_t ifi_capabilities; /* interface capabilities */
125 struct timeval ifi_lastchange; /* last operational state change */
126};
127
128#define IFQ_NQUEUES 8
129#define IFQ_MINPRIO 0
130#define IFQ_MAXPRIO IFQ_NQUEUES - 1
131#define IFQ_DEFPRIO 3
132#define IFQ_PRIO2TOS(_p) ((_p) << 5)
133#define IFQ_TOS2PRIO(_t) ((_t) >> 5)
134
135/*
136 * Values for if_link_state.
137 */
138#define LINK_STATE_UNKNOWN 0 /* link unknown */
139#define LINK_STATE_INVALID 1 /* link invalid */
140#define LINK_STATE_DOWN 2 /* link is down */
141#define LINK_STATE_KALIVE_DOWN 3 /* keepalive reports down */
142#define LINK_STATE_UP 4 /* link is up */
143#define LINK_STATE_HALF_DUPLEX 5 /* link is up and half duplex */
144#define LINK_STATE_FULL_DUPLEX 6 /* link is up and full duplex */
145
146#define LINK_STATE_IS_UP(_s) \
147 ((_s) >= LINK_STATE_UP || (_s) == LINK_STATE_UNKNOWN)
148
149/*
150 * Status bit descriptions for the various interface types.
151 */
152struct if_status_description {
153 u_char ifs_type;
154 u_char ifs_state;
155 const char *ifs_string;
156};
157
158#define LINK_STATE_DESC_MATCH(_ifs, _t, _s) \
159 (((_ifs)->ifs_type == (_t) || (_ifs)->ifs_type == 0) && \
160 (_ifs)->ifs_state == (_s))
161
162
163#define LINK_STATE_DESCRIPTIONS { \
164 { IFT_ETHER, LINK_STATE_DOWN, "no carrier" }, \
165 \
166 { IFT_IEEE80211, LINK_STATE_DOWN, "no network" }, \
167 \
168 { IFT_PPP, LINK_STATE_DOWN, "no carrier" }, \
169 \
170 { IFT_CARP, LINK_STATE_DOWN, "backup" }, \
171 { IFT_CARP, LINK_STATE_UP, "master" }, \
172 { IFT_CARP, LINK_STATE_HALF_DUPLEX, "master" }, \
173 { IFT_CARP, LINK_STATE_FULL_DUPLEX, "master" }, \
174 \
175 { 0, LINK_STATE_UP, "active" }, \
176 { 0, LINK_STATE_HALF_DUPLEX, "active" }, \
177 { 0, LINK_STATE_FULL_DUPLEX, "active" }, \
178 \
179 { 0, LINK_STATE_UNKNOWN, "unknown" }, \
180 { 0, LINK_STATE_INVALID, "invalid" }, \
181 { 0, LINK_STATE_DOWN, "down" }, \
182 { 0, LINK_STATE_KALIVE_DOWN, "keepalive down" }, \
183 { 0, 0, NULL } \
184}
185
186/* Traditional BSD name for length of interface external name. */
187#define IFNAMSIZ IF_NAMESIZE
188
189/*
190 * Length of interface description, including terminating '\0'.
191 */
192#define IFDESCRSIZE 64
193
194/*
195 * Interface flags can be either owned by the stack or the driver. The
196 * symbols below document who is toggling which flag.
197 *
198 * I immutable after creation
199 * N written by the stack (upon user request)
200 * d written by the driver
201 * c for userland compatibility only
202 */
203#define IFF_UP 0x1 /* [N] interface is up */
204#define IFF_BROADCAST 0x2 /* [I] broadcast address valid */
205#define IFF_DEBUG 0x4 /* [N] turn on debugging */
206#define IFF_LOOPBACK 0x8 /* [I] is a loopback net */
207#define IFF_POINTOPOINT 0x10 /* [I] is point-to-point link */
208#define IFF_STATICARP 0x20 /* [N] only static ARP */
209#define IFF_RUNNING 0x40 /* [d] resources allocated */
210#define IFF_NOARP 0x80 /* [N] no address resolution protocol */
211#define IFF_PROMISC 0x100 /* [N] receive all packets */
212#define IFF_ALLMULTI 0x200 /* [d] receive all multicast packets */
213#define IFF_OACTIVE 0x400 /* [c] transmission in progress */
214#define IFF_SIMPLEX 0x800 /* [I] can't hear own transmissions */
215#define IFF_LINK0 0x1000 /* [N] per link layer defined bit */
216#define IFF_LINK1 0x2000 /* [N] per link layer defined bit */
217#define IFF_LINK2 0x4000 /* [N] per link layer defined bit */
218#define IFF_MULTICAST 0x8000 /* [I] supports multicast */
219
220/* flags set internally only: */
221#define IFF_CANTCHANGE \
222 (IFF_BROADCAST|IFF_LOOPBACK|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
223 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
224
225#define IFXF_MPSAFE 0x1 /* [I] if_start is mpsafe */
226#define IFXF_CLONED 0x2 /* [I] pseudo interface */
227#define IFXF_AUTOCONF6TEMP 0x4 /* [N] v6 temporary addrs enabled */
228#define IFXF_MPLS 0x8 /* [N] supports MPLS */
229#define IFXF_WOL 0x10 /* [N] wake on lan enabled */
230#define IFXF_AUTOCONF6 0x20 /* [N] v6 autoconf enabled */
231#define IFXF_INET6_NOSOII 0x40 /* [N] don't do RFC 7217 */
232#define IFXF_AUTOCONF4 0x80 /* [N] v4 autoconf (aka dhcp) enabled */
233#define IFXF_MONITOR 0x100 /* [N] only used for bpf */
234#define IFXF_LRO 0x200 /* [N] TCP large recv offload */
235
236#define IFXF_CANTCHANGE \
237 (IFXF_MPSAFE|IFXF_CLONED)
238
239/*
240 * Some convenience macros used for setting ifi_baudrate.
241 */
242#define IF_Kbps(x) ((x) * 1000ULL) /* kilobits/sec. */
243#define IF_Mbps(x) (IF_Kbps((x) * 1000ULL)) /* megabits/sec. */
244#define IF_Gbps(x) (IF_Mbps((x) * 1000ULL)) /* gigabits/sec. */
245
246/* Capabilities that interfaces can advertise. */
247#define IFCAP_CSUM_IPv4 0x00000001 /* can do IPv4 header csum */
248#define IFCAP_CSUM_TCPv4 0x00000002 /* can do IPv4/TCP csum */
249#define IFCAP_CSUM_UDPv4 0x00000004 /* can do IPv4/UDP csum */
250#define IFCAP_VLAN_MTU 0x00000010 /* VLAN-compatible MTU */
251#define IFCAP_VLAN_HWTAGGING 0x00000020 /* hardware VLAN tag support */
252#define IFCAP_VLAN_HWOFFLOAD 0x00000040 /* hw offload w/ inline tag */
253#define IFCAP_CSUM_TCPv6 0x00000080 /* can do IPv6/TCP checksums */
254#define IFCAP_CSUM_UDPv6 0x00000100 /* can do IPv6/UDP checksums */
255#define IFCAP_TSOv4 0x00001000 /* IPv4/TCP segment offload */
256#define IFCAP_TSOv6 0x00002000 /* IPv6/TCP segment offload */
257#define IFCAP_LRO 0x00004000 /* TCP large recv offload */
258#define IFCAP_WOL 0x00008000 /* can do wake on lan */
259
260#define IFCAP_CSUM_MASK (IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | \
261 IFCAP_CSUM_UDPv4 | IFCAP_CSUM_TCPv6 | IFCAP_CSUM_UDPv6)
262
263/* symbolic names for terminal (per-protocol) CTL_IFQ_ nodes */
264#define IFQCTL_LEN 1
265#define IFQCTL_MAXLEN 2
266#define IFQCTL_DROPS 3
267#define IFQCTL_CONGESTION 4
268#define IFQCTL_MAXID 5
269
270/* sysctl for ifq (per-protocol packet input queue variant of ifqueue) */
271#define CTL_IFQ_NAMES { \
272 { 0, 0 }, \
273 { "len", CTLTYPE_INT }, \
274 { "maxlen", CTLTYPE_INT }, \
275 { "drops", CTLTYPE_INT }, \
276 { "congestion", CTLTYPE_INT }, \
277}
278
279/*
280 * Message format for use in obtaining information about interfaces
281 * from sysctl and the routing socket.
282 */
283struct if_msghdr {
284 u_short ifm_msglen; /* to skip over non-understood messages */
285 u_char ifm_version; /* future binary compatibility */
286 u_char ifm_type; /* message type */
287 u_short ifm_hdrlen; /* sizeof(if_msghdr) to skip over the header */
288 u_short ifm_index; /* index for associated ifp */
289 u_short ifm_tableid; /* routing table id */
290 u_char ifm_pad1;
291 u_char ifm_pad2;
292 int ifm_addrs; /* like rtm_addrs */
293 int ifm_flags; /* value of if_flags */
294 int ifm_xflags;
295 struct if_data ifm_data;/* statistics and other data about if */
296};
297
298/*
299 * Message format for use in obtaining information about interface addresses
300 * from sysctl and the routing socket.
301 */
302struct ifa_msghdr {
303 u_short ifam_msglen; /* to skip over non-understood messages */
304 u_char ifam_version; /* future binary compatibility */
305 u_char ifam_type; /* message type */
306 u_short ifam_hdrlen; /* sizeof(ifa_msghdr) to skip over the header */
307 u_short ifam_index; /* index for associated ifp */
308 u_short ifam_tableid; /* routing table id */
309 u_char ifam_pad1;
310 u_char ifam_pad2;
311 int ifam_addrs; /* like rtm_addrs */
312 int ifam_flags; /* value of ifa_flags */
313 int ifam_metric; /* value of ifa_metric */
314};
315
316/*
317 * Message format announcing the arrival or departure of a network interface.
318 */
319struct if_announcemsghdr {
320 u_short ifan_msglen; /* to skip over non-understood messages */
321 u_char ifan_version; /* future binary compatibility */
322 u_char ifan_type; /* message type */
323 u_short ifan_hdrlen; /* sizeof(if_announcemsghdr) to skip header */
324 u_short ifan_index; /* index for associated ifp */
325 u_short ifan_what; /* what type of announcement */
326 char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */
327};
328
329#define IFAN_ARRIVAL 0 /* interface arrival */
330#define IFAN_DEPARTURE 1 /* interface departure */
331
332/* message format used to pass 80211 interface info */
333struct if_ieee80211_data {
334 uint8_t ifie_channel; /* IEEE80211_CHAN_MAX == 255 */
335 uint8_t ifie_nwid_len;
336 uint32_t ifie_flags; /* ieee80211com.ic_flags */
337 uint32_t ifie_xflags; /* ieee80211com.ic xflags */
338 uint8_t ifie_nwid[32]; /* IEEE80211_NWID_LEN */
339 uint8_t ifie_addr[6]; /* IEEE80211_ADDR_LEN */
340};
341
342struct if_ieee80211_msghdr {
343 uint16_t ifim_msglen;
344 uint8_t ifim_version;
345 uint8_t ifim_type;
346 uint16_t ifim_hdrlen;
347 uint16_t ifim_index;
348 uint16_t ifim_tableid;
349
350 struct if_ieee80211_data ifim_ifie;
351};
352
353/* message format used to pass interface name to index mappings */
354struct if_nameindex_msg {
355 unsigned int if_index;
356 char if_name[IFNAMSIZ];
357};
358
359/*
360 * interface groups
361 */
362
363#define IFG_ALL "all" /* group contains all interfaces */
364#define IFG_EGRESS "egress" /* if(s) default route(s) point to */
365
366struct ifg_req {
367 union {
368 char ifgrqu_group[IFNAMSIZ];
369 char ifgrqu_member[IFNAMSIZ];
370 } ifgrq_ifgrqu;
371#define ifgrq_group ifgrq_ifgrqu.ifgrqu_group
372#define ifgrq_member ifgrq_ifgrqu.ifgrqu_member
373};
374
375struct ifg_attrib {
376 int ifg_carp_demoted;
377};
378
379/*
380 * Used to lookup groups for an interface
381 */
382struct ifgroupreq {
383 char ifgr_name[IFNAMSIZ];
384 u_int ifgr_len;
385 union {
386 char ifgru_group[IFNAMSIZ];
387 struct ifg_req *ifgru_groups;
388 struct ifg_attrib ifgru_attrib;
389 } ifgr_ifgru;
390#define ifgr_group ifgr_ifgru.ifgru_group
391#define ifgr_groups ifgr_ifgru.ifgru_groups
392#define ifgr_attrib ifgr_ifgru.ifgru_attrib
393};
394
395/*
396 * Interface request structure used for socket
397 * ioctl's. All interface ioctl's must have parameter
398 * definitions which begin with ifr_name. The
399 * remainder may be interface specific.
400 */
401struct ifreq {
402 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
403 union {
404 struct sockaddr ifru_addr;
405 struct sockaddr ifru_dstaddr;
406 struct sockaddr ifru_broadaddr;
407 short ifru_flags;
408 int ifru_metric;
409 int64_t ifru_vnetid;
410 uint64_t ifru_media;
411 caddr_t ifru_data;
412 unsigned int ifru_index;
413 } ifr_ifru;
414#define ifr_addr ifr_ifru.ifru_addr /* address */
415#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
416#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
417#define ifr_flags ifr_ifru.ifru_flags /* flags */
418#define ifr_metric ifr_ifru.ifru_metric /* metric */
419#define ifr_mtu ifr_ifru.ifru_metric /* mtu (overload) */
420#define ifr_hardmtu ifr_ifru.ifru_metric /* hardmtu (overload) */
421#define ifr_media ifr_ifru.ifru_media /* media options */
422#define ifr_rdomainid ifr_ifru.ifru_metric /* VRF instance (overload) */
423#define ifr_vnetid ifr_ifru.ifru_vnetid /* Virtual Net Id */
424#define ifr_ttl ifr_ifru.ifru_metric /* tunnel TTL (overload) */
425#define ifr_df ifr_ifru.ifru_metric /* tunnel DF (overload) */
426#define ifr_data ifr_ifru.ifru_data /* for use by interface */
427#define ifr_index ifr_ifru.ifru_index /* interface index */
428#define ifr_llprio ifr_ifru.ifru_metric /* link layer priority */
429#define ifr_hdrprio ifr_ifru.ifru_metric /* header prio field config */
430#define ifr_pwe3 ifr_ifru.ifru_metric /* PWE3 type */
431};
432
433#define IF_HDRPRIO_MIN IFQ_MINPRIO
434#define IF_HDRPRIO_MAX IFQ_MAXPRIO
435#define IF_HDRPRIO_PACKET -1 /* use mbuf prio */
436#define IF_HDRPRIO_PAYLOAD -2 /* copy payload prio */
437#define IF_HDRPRIO_OUTER -3 /* use outer prio */
438
439#define IF_PWE3_ETHERNET 1 /* ethernet or ethernet tagged */
440#define IF_PWE3_IP 2 /* IP layer 2 */
441
442struct ifaliasreq {
443 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
444 union {
445 struct sockaddr ifrau_addr;
446 int ifrau_align;
447 } ifra_ifrau;
448#ifndef ifra_addr
449#define ifra_addr ifra_ifrau.ifrau_addr
450#endif
451 struct sockaddr ifra_dstaddr;
452#define ifra_broadaddr ifra_dstaddr
453 struct sockaddr ifra_mask;
454};
455
456struct ifmediareq {
457 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
458 uint64_t ifm_current; /* get/set current media options */
459 uint64_t ifm_mask; /* don't care mask */
460 uint64_t ifm_status; /* media status */
461 uint64_t ifm_active; /* active options */
462 int ifm_count; /* # entries in ifm_ulist array */
463 uint64_t *ifm_ulist; /* media words */
464};
465
466struct ifkalivereq {
467 char ikar_name[IFNAMSIZ]; /* if name, e.g. "en0" */
468 int ikar_timeo;
469 int ikar_cnt;
470};
471
472/*
473 * Structure used in SIOCGIFCONF request.
474 * Used to retrieve interface configuration
475 * for machine (useful for programs which
476 * must know all networks accessible).
477 */
478struct ifconf {
479 int ifc_len; /* size of associated buffer */
480 union {
481 caddr_t ifcu_buf;
482 struct ifreq *ifcu_req;
483 } ifc_ifcu;
484#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
485#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
486};
487
488/*
489 * Structure for SIOC[AGD]LIFADDR
490 */
491struct if_laddrreq {
492 char iflr_name[IFNAMSIZ];
493 unsigned int flags;
494#define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
495 unsigned int prefixlen; /* in/out */
496 struct sockaddr_storage addr; /* in/out */
497 struct sockaddr_storage dstaddr; /* out */
498};
499
500/* SIOCIFAFDETACH */
501struct if_afreq {
502 char ifar_name[IFNAMSIZ];
503 sa_family_t ifar_af;
504};
505
506/* SIOC[SG]IFPARENT */
507struct if_parent {
508 char ifp_name[IFNAMSIZ];
509 char ifp_parent[IFNAMSIZ];
510};
511
512/* SIOCGIFSFFPAGE */
513
514#define IFSFF_ADDR_EEPROM 0xa0
515#define IFSFF_ADDR_DDM 0xa2
516
517#define IFSFF_DATA_LEN 256
518
519struct if_sffpage {
520 char sff_ifname[IFNAMSIZ]; /* u -> k */
521 uint8_t sff_addr; /* u -> k */
522 uint8_t sff_page; /* u -> k */
523 uint8_t sff_data[IFSFF_DATA_LEN]; /* k -> u */
524};
525
526#include <net/if_arp.h>
527
528#ifdef _KERNEL
529
530#define IF_MAX_VECTORS 8
531
532struct socket;
533struct ifnet;
534struct ifq_ops;
535
536void if_alloc_sadl(struct ifnet *);
537void if_free_sadl(struct ifnet *);
538void if_attach(struct ifnet *);
539void if_attach_queues(struct ifnet *, unsigned int);
540void if_attach_iqueues(struct ifnet *, unsigned int);
541void if_attach_ifq(struct ifnet *, const struct ifq_ops *, void *);
542void if_attachhead(struct ifnet *);
543void if_deactivate(struct ifnet *);
544void if_detach(struct ifnet *);
545void if_down(struct ifnet *);
546void if_downall(void);
547void if_link_state_change(struct ifnet *);
548void if_up(struct ifnet *);
549void if_getdata(struct ifnet *, struct if_data *);
550void ifinit(void);
551int ifioctl(struct socket *, u_long, caddr_t, struct proc *);
552int ifpromisc(struct ifnet *, int);
553int ifsetlro(struct ifnet *, int);
554struct ifg_group *if_creategroup(const char *);
555int if_addgroup(struct ifnet *, const char *);
556int if_delgroup(struct ifnet *, const char *);
557void if_group_routechange(const struct sockaddr *, const struct sockaddr *);
558struct ifnet *if_unit(const char *);
559struct ifnet *if_get(unsigned int);
560struct ifnet *if_ref(struct ifnet *);
561struct ifnet *if_get_smr(unsigned int);
562void if_put(struct ifnet *);
563void ifnewlladdr(struct ifnet *);
564void if_congestion(void);
565int if_congested(void);
566__dead void unhandled_af(int);
567int if_setlladdr(struct ifnet *, const uint8_t *);
568void softnet_init(void);
569void softnet_percpu(void);
570unsigned int
571 softnet_count(void);
572struct taskq *
573 net_tq(unsigned int);
574void net_tq_barriers(const char *);
575
576#endif /* _KERNEL */
577
578#endif /* __BSD_VISIBLE */
579
580#endif /* _NET_IF_H_ */