2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1982, 1986, 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * From: @(#)if.h 8.1 (Berkeley) 6/10/93
35 #ifndef _NET_IF_VAR_H_
36 #define _NET_IF_VAR_H_
39 * Structures defining a network interface, providing a packet
40 * transport mechanism (ala level 0 of the PUP protocols).
42 * Each interface accepts output datagrams of a specified maximum
43 * length, and provides higher level routines with input datagrams
44 * received from its medium.
46 * Output occurs when the routine if_output is called, with three parameters:
47 * (*ifp->if_output)(ifp, m, dst, ro)
48 * Here m is the mbuf chain to be sent and dst is the destination address.
49 * The output routine encapsulates the supplied datagram if necessary,
50 * and then transmits it on its medium.
52 * On input, each interface unwraps the data received by it, and either
53 * places it on the input queue of an internetwork datagram routine
54 * and posts the associated software interrupt, or passes the datagram to a raw
55 * packet input routine.
57 * Routines exist for locating interfaces by their addresses
58 * or for locating an interface on a certain network, as well as more general
59 * routing and gateway routines maintaining information used to locate
60 * interfaces. These routines live in the files if.c and route.c
63 struct rtentry; /* ifa_rtrequest */
68 struct route; /* if_output */
71 struct netmap_adapter;
72 struct debugnet_methods;
75 #include <sys/_eventhandler.h>
76 #include <sys/mbuf.h> /* ifqueue only? */
77 #include <sys/buf_ring.h>
81 #include <sys/counter.h>
82 #include <sys/epoch.h>
83 #include <sys/lock.h> /* XXX */
84 #include <sys/mutex.h> /* struct ifqueue */
85 #include <sys/rwlock.h> /* XXX */
86 #include <sys/sx.h> /* XXX */
87 #include <sys/_task.h> /* if_link_task */
88 #define IF_DUNIT_NONE -1
90 #include <net/altq/if_altq.h>
92 CK_STAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */
93 CK_STAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */
94 CK_STAILQ_HEAD(ifmultihead, ifmultiaddr);
95 CK_STAILQ_HEAD(ifgrouphead, ifg_group);
98 VNET_DECLARE(struct pfil_head *, link_pfil_head);
99 #define V_link_pfil_head VNET(link_pfil_head)
100 #define PFIL_ETHER_NAME "ethernet"
102 #define HHOOK_IPSEC_INET 0
103 #define HHOOK_IPSEC_INET6 1
104 #define HHOOK_IPSEC_COUNT 2
105 VNET_DECLARE(struct hhook_head *, ipsec_hhh_in[HHOOK_IPSEC_COUNT]);
106 VNET_DECLARE(struct hhook_head *, ipsec_hhh_out[HHOOK_IPSEC_COUNT]);
107 #define V_ipsec_hhh_in VNET(ipsec_hhh_in)
108 #define V_ipsec_hhh_out VNET(ipsec_hhh_out)
112 IFCOUNTER_IPACKETS = 0,
116 IFCOUNTER_COLLISIONS,
124 IFCOUNTERS /* Array size. */
127 typedef void (*if_start_fn_t)(if_t);
128 typedef int (*if_ioctl_fn_t)(if_t, u_long, caddr_t);
129 typedef void (*if_init_fn_t)(void *);
130 typedef void (*if_input_fn_t)(if_t, struct mbuf *);
131 typedef int (*if_output_fn_t)(if_t, struct mbuf *, const struct sockaddr *,
133 typedef void (*if_qflush_fn_t)(if_t);
134 typedef int (*if_transmit_fn_t)(if_t, struct mbuf *);
135 typedef uint64_t (*if_get_counter_t)(if_t, ift_counter);
136 typedef void (*if_reassign_fn_t)(if_t, struct vnet *, char *);
138 struct ifnet_hw_tsomax {
139 u_int tsomaxbytes; /* TSO total burst length limit in bytes */
140 u_int tsomaxsegcount; /* TSO maximum segment count */
141 u_int tsomaxsegsize; /* TSO maximum segment size in bytes */
144 /* Interface encap request types */
146 IFENCAP_LL = 1 /* pre-calculate link-layer header */
150 * The structure below allows to request various pre-calculated L2/L3 headers
151 * for different media. Requests varies by type (rtype field).
153 * IFENCAP_LL type: pre-calculates link header based on address family
154 * and destination lladdr.
157 * buf: pointer to destination buffer
158 * bufsize: buffer size
159 * flags: IFENCAP_FLAG_BROADCAST if destination is broadcast
160 * family: address family defined by AF_ constant.
161 * lladdr: pointer to link-layer address
162 * lladdr_len: length of link-layer address
163 * hdata: pointer to L3 header (optional, used for ARP requests).
164 * Output data fields:
165 * buf: encap data is stored here
166 * bufsize: resulting encap length is stored here
167 * lladdr_off: offset of link-layer address from encap hdr start
168 * hdata: L3 header may be altered if necessary
171 struct if_encap_req {
172 u_char *buf; /* Destination buffer (w) */
173 size_t bufsize; /* size of provided buffer (r) */
174 ife_type rtype; /* request type (r) */
175 uint32_t flags; /* Request flags (r) */
176 int family; /* Address family AF_* (r) */
177 int lladdr_off; /* offset from header start (w) */
178 int lladdr_len; /* lladdr length (r) */
179 char *lladdr; /* link-level address pointer (r) */
180 char *hdata; /* Upper layer header data (rw) */
183 #define IFENCAP_FLAG_BROADCAST 0x02 /* Destination is broadcast */
186 * Network interface send tag support. The storage of "struct
187 * m_snd_tag" comes from the network driver and it is free to allocate
188 * as much additional space as it wants for its own use.
193 #define IF_SND_TAG_TYPE_RATE_LIMIT 0
194 #define IF_SND_TAG_TYPE_UNLIMITED 1
195 #define IF_SND_TAG_TYPE_TLS 2
196 #define IF_SND_TAG_TYPE_TLS_RATE_LIMIT 3
197 #define IF_SND_TAG_TYPE_TLS_RX 4
198 #define IF_SND_TAG_TYPE_MAX 5
200 struct if_snd_tag_alloc_header {
201 uint32_t type; /* send tag type, see IF_SND_TAG_XXX */
202 uint32_t flowid; /* mbuf hash value */
203 uint32_t flowtype; /* mbuf hash type */
204 uint8_t numa_domain; /* numa domain of associated inp */
207 struct if_snd_tag_alloc_rate_limit {
208 struct if_snd_tag_alloc_header hdr;
209 uint64_t max_rate; /* in bytes/s */
210 uint32_t flags; /* M_NOWAIT or M_WAITOK */
211 uint32_t reserved; /* alignment */
214 struct if_snd_tag_alloc_tls {
215 struct if_snd_tag_alloc_header hdr;
217 const struct ktls_session *tls;
220 struct if_snd_tag_alloc_tls_rx {
221 struct if_snd_tag_alloc_header hdr;
223 const struct ktls_session *tls;
224 uint16_t vlan_id; /* valid if non-zero */
227 struct if_snd_tag_alloc_tls_rate_limit {
228 struct if_snd_tag_alloc_header hdr;
230 const struct ktls_session *tls;
231 uint64_t max_rate; /* in bytes/s */
234 struct if_snd_tag_rate_limit_params {
235 uint64_t max_rate; /* in bytes/s */
236 uint32_t queue_level; /* 0 (empty) .. 65535 (full) */
237 #define IF_SND_QUEUE_LEVEL_MIN 0
238 #define IF_SND_QUEUE_LEVEL_MAX 65535
239 uint32_t flags; /* M_NOWAIT or M_WAITOK */
242 struct if_snd_tag_modify_tls_rx {
243 /* TCP sequence number of TLS header in host endian format */
244 uint32_t tls_hdr_tcp_sn;
247 * TLS record length, including all headers, data and trailers.
248 * If the tls_rec_length is zero, it means HW encryption resumed.
250 uint32_t tls_rec_length;
252 /* TLS sequence number in host endian format */
253 uint64_t tls_seq_number;
256 union if_snd_tag_alloc_params {
257 struct if_snd_tag_alloc_header hdr;
258 struct if_snd_tag_alloc_rate_limit rate_limit;
259 struct if_snd_tag_alloc_rate_limit unlimited;
260 struct if_snd_tag_alloc_tls tls;
261 struct if_snd_tag_alloc_tls_rx tls_rx;
262 struct if_snd_tag_alloc_tls_rate_limit tls_rate_limit;
265 union if_snd_tag_modify_params {
266 struct if_snd_tag_rate_limit_params rate_limit;
267 struct if_snd_tag_rate_limit_params unlimited;
268 struct if_snd_tag_rate_limit_params tls_rate_limit;
269 struct if_snd_tag_modify_tls_rx tls_rx;
272 union if_snd_tag_query_params {
273 struct if_snd_tag_rate_limit_params rate_limit;
274 struct if_snd_tag_rate_limit_params unlimited;
275 struct if_snd_tag_rate_limit_params tls_rate_limit;
278 typedef int (if_snd_tag_alloc_t)(if_t, union if_snd_tag_alloc_params *,
279 struct m_snd_tag **);
280 typedef int (if_snd_tag_modify_t)(struct m_snd_tag *, union if_snd_tag_modify_params *);
281 typedef int (if_snd_tag_query_t)(struct m_snd_tag *, union if_snd_tag_query_params *);
282 typedef void (if_snd_tag_free_t)(struct m_snd_tag *);
283 typedef struct m_snd_tag *(if_next_send_tag_t)(struct m_snd_tag *);
285 struct if_snd_tag_sw {
286 if_snd_tag_modify_t *snd_tag_modify;
287 if_snd_tag_query_t *snd_tag_query;
288 if_snd_tag_free_t *snd_tag_free;
289 if_next_send_tag_t *next_snd_tag;
290 u_int type; /* One of IF_SND_TAG_TYPE_*. */
293 /* Query return flags */
294 #define RT_NOSUPPORT 0x00000000 /* Not supported */
295 #define RT_IS_INDIRECT 0x00000001 /*
296 * Interface like a lagg, select
297 * the actual interface for
300 #define RT_IS_SELECTABLE 0x00000002 /*
301 * No rate table, you select
302 * rates and the first
303 * number_of_rates are created.
305 #define RT_IS_FIXED_TABLE 0x00000004 /* A fixed table is attached */
306 #define RT_IS_UNUSABLE 0x00000008 /* It is not usable for this */
307 #define RT_IS_SETUP_REQ 0x00000010 /* The interface setup must be called before use */
309 struct if_ratelimit_query_results {
310 const uint64_t *rate_table; /* Pointer to table if present */
311 uint32_t flags; /* Flags indicating results */
312 uint32_t max_flows; /* Max flows using, 0=unlimited */
313 uint32_t number_of_rates; /* How many unique rates can be created */
314 uint32_t min_segment_burst; /* The amount the adapter bursts at each send */
317 typedef void (if_ratelimit_query_t)(if_t,
318 struct if_ratelimit_query_results *);
319 typedef int (if_ratelimit_setup_t)(if_t, uint64_t, uint32_t);
322 * Locks for address lists on the network interface.
324 #define IF_ADDR_LOCK_INIT(if) mtx_init(&(if)->if_addr_lock, "if_addr_lock", NULL, MTX_DEF)
325 #define IF_ADDR_LOCK_DESTROY(if) mtx_destroy(&(if)->if_addr_lock)
327 #define IF_ADDR_WLOCK(if) mtx_lock(&(if)->if_addr_lock)
328 #define IF_ADDR_WUNLOCK(if) mtx_unlock(&(if)->if_addr_lock)
329 #define IF_ADDR_LOCK_ASSERT(if) MPASS(in_epoch(net_epoch_preempt) || mtx_owned(&(if)->if_addr_lock))
330 #define IF_ADDR_WLOCK_ASSERT(if) mtx_assert(&(if)->if_addr_lock, MA_OWNED)
333 /* interface link layer address change event */
334 typedef void (*iflladdr_event_handler_t)(void *, if_t);
335 EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t);
336 /* interface address change event */
337 typedef void (*ifaddr_event_handler_t)(void *, if_t);
338 EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t);
339 typedef void (*ifaddr_event_ext_handler_t)(void *, if_t, struct ifaddr *, int);
340 EVENTHANDLER_DECLARE(ifaddr_event_ext, ifaddr_event_ext_handler_t);
341 #define IFADDR_EVENT_ADD 0
342 #define IFADDR_EVENT_DEL 1
343 /* new interface arrival event */
344 typedef void (*ifnet_arrival_event_handler_t)(void *, if_t);
345 EVENTHANDLER_DECLARE(ifnet_arrival_event, ifnet_arrival_event_handler_t);
346 /* interface departure event */
347 typedef void (*ifnet_departure_event_handler_t)(void *, if_t);
348 EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_departure_event_handler_t);
349 /* Interface link state change event */
350 typedef void (*ifnet_link_event_handler_t)(void *, if_t, int);
351 EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_event_handler_t);
352 /* Interface up/down event */
353 #define IFNET_EVENT_UP 0
354 #define IFNET_EVENT_DOWN 1
355 #define IFNET_EVENT_PCP 2 /* priority code point, PCP */
356 #define IFNET_EVENT_UPDATE_BAUDRATE 3
358 typedef void (*ifnet_event_fn)(void *, if_t ifp, int event);
359 EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
365 char ifg_group[IFNAMSIZ];
368 CK_STAILQ_HEAD(, ifg_member) ifg_members; /* (CK_) */
369 CK_STAILQ_ENTRY(ifg_group) ifg_next; /* (CK_) */
373 CK_STAILQ_ENTRY(ifg_member) ifgm_next; /* (CK_) */
378 struct ifg_group *ifgl_group;
379 CK_STAILQ_ENTRY(ifg_list) ifgl_next; /* (CK_) */
382 #ifdef _SYS_EVENTHANDLER_H_
383 /* group attach event */
384 typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *);
385 EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t);
386 /* group detach event */
387 typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *);
388 EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t);
389 /* group change event */
390 typedef void (*group_change_event_handler_t)(void *, const char *);
391 EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t);
392 #endif /* _SYS_EVENTHANDLER_H_ */
395 * 72 was chosen below because it is the size of a TCP/IP
396 * header (40) + the minimum mss (32).
399 #define IF_MAXMTU 65535
401 #define TOEDEV(ifp) if_getllsoftc(ifp)
402 #define SETTOEDEV(ifp, sc) if_setllsoftc((ifp), (sc))
405 * The ifaddr structure contains information about one address
406 * of an interface. They are maintained by the different address families,
407 * are allocated and attached when an address is set, and are linked
408 * together so all addresses for an interface can be located.
410 * NOTE: a 'struct ifaddr' is always at the beginning of a larger
411 * chunk of malloc'ed memory, where we store the three addresses
412 * (ifa_addr, ifa_dstaddr and ifa_netmask) referenced here.
415 struct sockaddr *ifa_addr; /* address of interface */
416 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
417 #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
418 struct sockaddr *ifa_netmask; /* used to determine subnet */
419 if_t ifa_ifp; /* back-pointer to interface */
420 struct carp_softc *ifa_carp; /* pointer to CARP data */
421 CK_STAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */
422 u_short ifa_flags; /* mostly rt_flags for cloning */
423 #define IFA_ROUTE RTF_UP /* route installed */
424 #define IFA_RTSELF RTF_HOST /* loopback route to self installed */
425 u_int ifa_refcnt; /* references to this structure */
427 counter_u64_t ifa_ipackets;
428 counter_u64_t ifa_opackets;
429 counter_u64_t ifa_ibytes;
430 counter_u64_t ifa_obytes;
431 struct epoch_context ifa_epoch_ctx;
434 struct ifaddr * ifa_alloc(size_t size, int flags);
435 void ifa_free(struct ifaddr *ifa);
436 void ifa_ref(struct ifaddr *ifa);
437 int __result_use_check ifa_try_ref(struct ifaddr *ifa);
440 * Multicast address structure. This is analogous to the ifaddr
441 * structure except that it keeps track of multicast addresses.
443 #define IFMA_F_ENQUEUED 0x1
445 CK_STAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
446 struct sockaddr *ifma_addr; /* address this membership is for */
447 struct sockaddr *ifma_lladdr; /* link-layer translation, if any */
448 if_t ifma_ifp; /* back-pointer to interface */
449 u_int ifma_refcount; /* reference count */
451 void *ifma_protospec; /* protocol-specific state, if any */
452 struct ifmultiaddr *ifma_llifma; /* pointer to ifma for ifma_lladdr */
453 struct epoch_context ifma_epoch_ctx;
456 extern struct sx ifnet_sxlock;
458 #define IFNET_WLOCK() sx_xlock(&ifnet_sxlock)
459 #define IFNET_WUNLOCK() sx_xunlock(&ifnet_sxlock)
460 #define IFNET_RLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_SLOCKED)
461 #define IFNET_WLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_XLOCKED)
462 #define IFNET_RLOCK() sx_slock(&ifnet_sxlock)
463 #define IFNET_RUNLOCK() sx_sunlock(&ifnet_sxlock)
466 * Look up an ifnet given its index. The returned value protected from
467 * being freed by the network epoch. The _ref variant also acquires a
468 * reference that must be freed using if_rele().
470 if_t ifnet_byindex(u_int);
471 if_t ifnet_byindex_ref(u_int);
474 * ifnet_byindexgen() looks up ifnet by index and generation count,
475 * attempting to restore a weak pointer that had been stored across
478 if_t ifnet_byindexgen(uint16_t idx, uint16_t gen);
480 VNET_DECLARE(struct ifnethead, ifnet);
481 VNET_DECLARE(struct ifgrouphead, ifg_head);
482 VNET_DECLARE(if_t, loif); /* first loopback interface */
484 #define V_ifnet VNET(ifnet)
485 #define V_ifg_head VNET(ifg_head)
486 #define V_loif VNET(loif)
489 #define MCDPRINTF printf
491 #define MCDPRINTF(...)
494 int if_addgroup(if_t, const char *);
495 int if_delgroup(if_t, const char *);
496 int if_addmulti(if_t, struct sockaddr *, struct ifmultiaddr **);
497 int if_allmulti(if_t, int);
498 if_t if_alloc(u_char);
499 if_t if_alloc_dev(u_char, device_t dev);
500 void if_attach(if_t);
502 int if_delmulti(if_t, struct sockaddr *);
503 void if_delmulti_ifma(struct ifmultiaddr *);
504 void if_delmulti_ifma_flags(struct ifmultiaddr *, int flags);
505 void if_detach(if_t);
506 void if_purgeaddrs(if_t);
507 void if_delallmulti(if_t);
510 if_findmulti(if_t, const struct sockaddr *);
511 void if_freemulti(struct ifmultiaddr *ifma);
513 void if_initname(if_t, const char *, int);
514 void if_link_state_change(if_t, int);
515 int if_printf(if_t, const char *, ...) __printflike(2, 3);
516 int if_log(if_t, int, const char *, ...) __printflike(3, 4);
519 bool __result_use_check if_try_ref(if_t);
520 int if_setlladdr(if_t, const u_char *, int);
521 int if_tunnel_check_nesting(if_t, struct mbuf *, uint32_t, int);
523 int ifioctl(struct socket *, u_long, caddr_t, struct thread *);
524 int ifpromisc(if_t, int);
525 if_t ifunit(const char *);
526 if_t ifunit_ref(const char *);
528 int ifa_add_loopback_route(struct ifaddr *, struct sockaddr *);
529 int ifa_del_loopback_route(struct ifaddr *, struct sockaddr *);
530 int ifa_switch_loopback_route(struct ifaddr *, struct sockaddr *);
532 struct ifaddr *ifa_ifwithaddr(const struct sockaddr *);
533 int ifa_ifwithaddr_check(const struct sockaddr *);
534 struct ifaddr *ifa_ifwithbroadaddr(const struct sockaddr *, int);
535 struct ifaddr *ifa_ifwithdstaddr(const struct sockaddr *, int);
536 struct ifaddr *ifa_ifwithnet(const struct sockaddr *, int, int);
537 struct ifaddr *ifa_ifwithroute(int, const struct sockaddr *,
538 const struct sockaddr *, u_int);
539 struct ifaddr *ifaof_ifpforaddr(const struct sockaddr *, if_t);
540 int ifa_preferred(struct ifaddr *, struct ifaddr *);
542 int if_simloop(if_t ifp, struct mbuf *m, int af, int hlen);
544 typedef void *if_com_alloc_t(u_char type, if_t ifp);
545 typedef void if_com_free_t(void *com, u_char type);
546 void if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
547 void if_deregister_com_alloc(u_char type);
548 void if_data_copy(if_t, struct if_data *);
549 uint64_t if_get_counter_default(if_t, ift_counter);
550 void if_inc_counter(if_t, ift_counter, int64_t);
552 uint64_t if_setbaudrate(if_t ifp, uint64_t baudrate);
553 uint64_t if_getbaudrate(const if_t ifp);
554 int if_setcapabilities(if_t ifp, int capabilities);
555 int if_setcapabilitiesbit(if_t ifp, int setbit, int clearbit);
556 int if_getcapabilities(const if_t ifp);
557 int if_togglecapenable(if_t ifp, int togglecap);
558 int if_setcapenable(if_t ifp, int capenable);
559 int if_setcapenablebit(if_t ifp, int setcap, int clearcap);
560 int if_getcapenable(const if_t ifp);
561 int if_setcapabilities2(if_t ifp, int capabilities);
562 int if_setcapabilities2bit(if_t ifp, int setbit, int clearbit);
563 int if_getcapabilities2(const if_t ifp);
564 int if_togglecapenable2(if_t ifp, int togglecap);
565 int if_setcapenable2(if_t ifp, int capenable);
566 int if_setcapenable2bit(if_t ifp, int setcap, int clearcap);
567 int if_getcapenable2(const if_t ifp);
568 int if_getdunit(const if_t ifp);
569 int if_getindex(const if_t ifp);
570 int if_getidxgen(const if_t ifp);
571 const char *if_getdname(const if_t ifp);
572 void if_setdname(if_t ifp, const char *name);
573 const char *if_name(if_t ifp);
574 int if_setname(if_t ifp, const char *name);
575 int if_rename(if_t ifp, char *new_name);
576 const char *if_getdescr(if_t ifp);
577 void if_setdescr(if_t ifp, char *descrbuf);
578 char *if_allocdescr(size_t sz, int malloc_flag);
579 void if_freedescr(char *descrbuf);
580 void if_setlastchange(if_t ifp);
581 int if_getalloctype(const if_t ifp);
582 int if_gettype(const if_t ifp);
583 int if_setdev(if_t ifp, void *dev);
584 int if_setdrvflagbits(if_t ifp, int if_setflags, int clear_flags);
585 int if_getdrvflags(const if_t ifp);
586 int if_setdrvflags(if_t ifp, int flags);
587 int if_getlinkstate(if_t ifp);
588 int if_clearhwassist(if_t ifp);
589 int if_sethwassistbits(if_t ifp, int toset, int toclear);
590 int if_sethwassist(if_t ifp, int hwassist_bit);
591 int if_gethwassist(const if_t ifp);
592 int if_togglehwassist(if_t ifp, int toggle_bits);
593 int if_setsoftc(if_t ifp, void *softc);
594 void *if_getsoftc(if_t ifp);
595 int if_setflags(if_t ifp, int flags);
596 void if_setllsoftc(if_t ifp, void *softc);
597 void *if_getllsoftc(if_t ifp);
598 u_int if_getfib(if_t ifp);
599 uint8_t if_getaddrlen(if_t ifp);
600 int if_gethwaddr(const if_t ifp, struct ifreq *);
601 const uint8_t *if_getbroadcastaddr(const if_t ifp);
602 void if_setbroadcastaddr(if_t ifp, const uint8_t *);
603 int if_setmtu(if_t ifp, int mtu);
604 int if_getmtu(const if_t ifp);
605 int if_getmtu_family(const if_t ifp, int family);
606 void if_notifymtu(if_t ifp);
607 int if_setflagbits(if_t ifp, int set, int clear);
608 int if_setflags(if_t ifp, int flags);
609 int if_getflags(const if_t ifp);
610 int if_getnumadomain(if_t ifp);
611 int if_sendq_empty(if_t ifp);
612 int if_setsendqready(if_t ifp);
613 int if_setsendqlen(if_t ifp, int tx_desc_count);
614 int if_sethwtsomax(if_t ifp, u_int if_hw_tsomax);
615 int if_sethwtsomaxsegcount(if_t ifp, u_int if_hw_tsomaxsegcount);
616 int if_sethwtsomaxsegsize(if_t ifp, u_int if_hw_tsomaxsegsize);
617 u_int if_gethwtsomax(const if_t ifp);
618 u_int if_gethwtsomaxsegcount(const if_t ifp);
619 u_int if_gethwtsomaxsegsize(const if_t ifp);
620 void if_setnetmapadapter(if_t ifp, struct netmap_adapter *na);
621 struct netmap_adapter *if_getnetmapadapter(if_t ifp);
622 void if_input(if_t ifp, struct mbuf* sendmp);
623 int if_sendq_prepend(if_t ifp, struct mbuf *m);
624 struct mbuf *if_dequeue(if_t ifp);
625 int if_setifheaderlen(if_t ifp, int len);
626 void if_setrcvif(struct mbuf *m, if_t ifp);
627 void if_setvtag(struct mbuf *m, u_int16_t tag);
628 u_int16_t if_getvtag(struct mbuf *m);
629 int if_vlantrunkinuse(if_t ifp);
630 caddr_t if_getlladdr(const if_t ifp);
631 struct vnet *if_getvnet(const if_t ifp);
632 void *if_gethandle(u_char);
633 void if_bpfmtap(if_t ifp, struct mbuf *m);
634 void if_etherbpfmtap(if_t ifp, struct mbuf *m);
635 void if_vlancap(if_t ifp);
636 int if_transmit(if_t ifp, struct mbuf *m);
637 void if_init(if_t ifp, void *ctx);
638 int if_ioctl(if_t ifp, u_long cmd, void *data);
639 int if_resolvemulti(if_t ifp, struct sockaddr **, struct sockaddr *);
640 uint64_t if_getcounter(if_t ifp, ift_counter counter);
641 struct label *if_getmaclabel(if_t ifp);
642 void if_setmaclabel(if_t ifp, struct label *label);
643 struct bpf_if *if_getbpf(if_t ifp);
644 uint8_t if_getpcp(if_t ifp);
645 void *if_getl2com(if_t ifp);
646 struct ifvlantrunk *if_getvlantrunk(if_t ifp);
647 bool if_altq_is_enabled(if_t ifp);
649 void *if_getafdata(if_t ifp, int);
651 int if_snd_tag_alloc(if_t ifp, union if_snd_tag_alloc_params *params,
652 struct m_snd_tag **mstp);
654 * Traversing through interface address lists.
657 typedef u_int iflladdr_cb_t(void *, struct sockaddr_dl *, u_int);
658 u_int if_foreach_lladdr(if_t, iflladdr_cb_t, void *);
659 u_int if_foreach_llmaddr(if_t, iflladdr_cb_t, void *);
660 u_int if_lladdr_count(if_t);
661 u_int if_llmaddr_count(if_t);
662 bool if_maddr_empty(if_t);
664 int if_getamcount(const if_t ifp);
665 struct ifaddr * if_getifaddr(const if_t ifp);
666 typedef u_int if_addr_cb_t(void *, struct ifaddr *, u_int);
667 u_int if_foreach_addr_type(if_t ifp, int type, if_addr_cb_t cb, void *cb_arg);
669 typedef int (*if_foreach_cb_t)(if_t, void *);
670 typedef bool (*if_foreach_match_t)(if_t, void *);
671 int if_foreach(if_foreach_cb_t, void *);
672 int if_foreach_sleep(if_foreach_match_t, void *, if_foreach_cb_t, void *);
674 /* Opaque iterator structure for iterating over interfaces. */
679 if_t if_iter_start(struct if_iter *);
680 if_t if_iter_next(struct if_iter *);
681 void if_iter_finish(struct if_iter *);
687 struct ifaddr *ifa_iter_start(if_t ifp, struct ifa_iter *iter);
688 struct ifaddr *ifa_iter_next(struct ifa_iter *iter);
689 void ifa_iter_finish(struct ifa_iter *iter);
692 void if_setinitfn(if_t ifp, if_init_fn_t);
693 void if_setinputfn(if_t ifp, if_input_fn_t);
694 if_input_fn_t if_getinputfn(if_t ifp);
695 void if_setioctlfn(if_t ifp, if_ioctl_fn_t);
696 void if_setoutputfn(if_t ifp, if_output_fn_t);
697 void if_setstartfn(if_t ifp, if_start_fn_t);
698 if_start_fn_t if_getstartfn(if_t ifp);
699 void if_settransmitfn(if_t ifp, if_transmit_fn_t);
700 if_transmit_fn_t if_gettransmitfn(if_t ifp);
701 void if_setqflushfn(if_t ifp, if_qflush_fn_t);
702 void if_setgetcounterfn(if_t ifp, if_get_counter_t);
703 void if_setsndtagallocfn(if_t ifp, if_snd_tag_alloc_t);
704 void if_setdebugnet_methods(if_t, struct debugnet_methods *);
705 void if_setreassignfn(if_t ifp, if_reassign_fn_t);
706 void if_setratelimitqueryfn(if_t ifp, if_ratelimit_query_t);
709 void if_hw_tsomax_common(if_t ifp, struct ifnet_hw_tsomax *);
710 int if_hw_tsomax_update(if_t ifp, struct ifnet_hw_tsomax *);
712 /* accessors for struct ifreq */
713 void *ifr_data_get_ptr(void *ifrp);
714 void *ifr_buffer_get_buffer(void *data);
715 size_t ifr_buffer_get_length(void *data);
717 int ifhwioctl(u_long, if_t, caddr_t, struct thread *);
719 #ifdef DEVICE_POLLING
720 enum poll_cmd { POLL_ONLY, POLL_AND_CHECK_STATUS };
722 typedef int poll_handler_t(if_t ifp, enum poll_cmd cmd, int count);
723 int ether_poll_register(poll_handler_t *h, if_t ifp);
724 int ether_poll_deregister(if_t ifp);
725 #endif /* DEVICE_POLLING */
729 #include <net/if_private.h> /* XXX: temporary until drivers converted. */
730 #include <net/ifq.h> /* XXXAO: temporary unconditional include */
732 #endif /* !_NET_IF_VAR_H_ */