2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 * From: @(#)if.h 8.1 (Berkeley) 6/10/93
33 #ifndef _NET_IF_VAR_H_
34 #define _NET_IF_VAR_H_
37 * Structures defining a network interface, providing a packet
38 * transport mechanism (ala level 0 of the PUP protocols).
40 * Each interface accepts output datagrams of a specified maximum
41 * length, and provides higher level routines with input datagrams
42 * received from its medium.
44 * Output occurs when the routine if_output is called, with three parameters:
45 * (*ifp->if_output)(ifp, m, dst, rt)
46 * Here m is the mbuf chain to be sent and dst is the destination address.
47 * The output routine encapsulates the supplied datagram if necessary,
48 * and then transmits it on its medium.
50 * On input, each interface unwraps the data received by it, and either
51 * places it on the input queue of an internetwork datagram routine
52 * and posts the associated software interrupt, or passes the datagram to a raw
53 * packet input routine.
55 * Routines exist for locating interfaces by their addresses
56 * or for locating an interface on a certain network, as well as more general
57 * routing and gateway routines maintaining information used to locate
58 * interfaces. These routines live in the files if.c and route.c
61 struct rtentry; /* ifa_rtrequest */
62 struct rt_addrinfo; /* ifa_rtrequest */
67 struct route; /* if_output */
70 struct netmap_adapter;
73 #include <sys/mbuf.h> /* ifqueue only? */
74 #include <sys/buf_ring.h>
77 #include <sys/counter.h>
78 #include <sys/lock.h> /* XXX */
79 #include <sys/mutex.h> /* struct ifqueue */
80 #include <sys/rwlock.h> /* XXX */
81 #include <sys/sx.h> /* XXX */
82 #include <sys/_task.h> /* if_link_task */
84 #define IF_DUNIT_NONE -1
86 #include <net/altq/if_altq.h>
88 TAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */
89 TAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */
90 TAILQ_HEAD(ifmultihead, ifmultiaddr);
91 TAILQ_HEAD(ifgrouphead, ifg_group);
94 VNET_DECLARE(struct pfil_head, link_pfil_hook); /* packet filter hooks */
95 #define V_link_pfil_hook VNET(link_pfil_hook)
97 #define HHOOK_IPSEC_INET 0
98 #define HHOOK_IPSEC_INET6 1
99 #define HHOOK_IPSEC_COUNT 2
100 VNET_DECLARE(struct hhook_head *, ipsec_hhh_in[HHOOK_IPSEC_COUNT]);
101 VNET_DECLARE(struct hhook_head *, ipsec_hhh_out[HHOOK_IPSEC_COUNT]);
102 #define V_ipsec_hhh_in VNET(ipsec_hhh_in)
103 #define V_ipsec_hhh_out VNET(ipsec_hhh_out)
107 IFCOUNTER_IPACKETS = 0,
111 IFCOUNTER_COLLISIONS,
119 IFCOUNTERS /* Array size. */
122 typedef struct ifnet * if_t;
124 typedef void (*if_start_fn_t)(if_t);
125 typedef int (*if_ioctl_fn_t)(if_t, u_long, caddr_t);
126 typedef void (*if_init_fn_t)(void *);
127 typedef void (*if_qflush_fn_t)(if_t);
128 typedef int (*if_transmit_fn_t)(if_t, struct mbuf *);
129 typedef uint64_t (*if_get_counter_t)(if_t, ift_counter);
131 struct ifnet_hw_tsomax {
132 u_int tsomaxbytes; /* TSO total burst length limit in bytes */
133 u_int tsomaxsegcount; /* TSO maximum segment count */
134 u_int tsomaxsegsize; /* TSO maximum segment size in bytes */
138 * Structure defining a network interface.
140 * Size ILP32: 592 (approx)
141 * LP64: 1048 (approx)
144 /* General book keeping of interface lists. */
145 TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */
146 LIST_ENTRY(ifnet) if_clones; /* interfaces of a cloner */
147 TAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if */
148 /* protected by if_addr_lock */
149 u_char if_alloctype; /* if_type at time of allocation */
151 /* Driver and protocol specific information that remains stable. */
152 void *if_softc; /* pointer to driver state */
153 void *if_llsoftc; /* link layer softc */
154 void *if_l2com; /* pointer to protocol bits */
155 const char *if_dname; /* driver name */
156 int if_dunit; /* unit or IF_DUNIT_NONE */
157 u_short if_index; /* numeric abbreviation for this if */
158 short if_index_reserved; /* spare space to grow if_index */
159 char if_xname[IFNAMSIZ]; /* external name (name + unit) */
160 char *if_description; /* interface description */
162 /* Variable fields that are touched by the stack and drivers. */
163 int if_flags; /* up/down, broadcast, etc. */
164 int if_drv_flags; /* driver-managed status flags */
165 int if_capabilities; /* interface features & capabilities */
166 int if_capenable; /* enabled features & capabilities */
167 void *if_linkmib; /* link-type-specific MIB data */
168 size_t if_linkmiblen; /* length of above data */
169 u_int if_refcount; /* reference count */
171 /* These fields are shared with struct if_data. */
172 uint8_t if_type; /* ethernet, tokenring, etc */
173 uint8_t if_addrlen; /* media address length */
174 uint8_t if_hdrlen; /* media header length */
175 uint8_t if_link_state; /* current link state */
176 uint32_t if_mtu; /* maximum transmission unit */
177 uint32_t if_metric; /* routing metric (external only) */
178 uint64_t if_baudrate; /* linespeed */
179 uint64_t if_hwassist; /* HW offload capabilities, see IFCAP */
180 time_t if_epoch; /* uptime at attach or stat reset */
181 struct timeval if_lastchange; /* time of last administrative change */
183 struct ifaltq if_snd; /* output queue (includes altq) */
184 struct task if_linktask; /* task for link change events */
186 /* Addresses of different protocol families assigned to this if. */
187 struct rwlock if_addr_lock; /* lock to protect address lists */
189 * if_addrhead is the list of all addresses associated to
191 * Some code in the kernel assumes that first element
192 * of the list has type AF_LINK, and contains sockaddr_dl
193 * addresses which store the link-level address and the name
195 * However, access to the AF_LINK address through this
196 * field is deprecated. Use if_addr or ifaddr_byindex() instead.
198 struct ifaddrhead if_addrhead; /* linked list of addresses per if */
199 struct ifmultihead if_multiaddrs; /* multicast addresses configured */
200 int if_amcount; /* number of all-multicast requests */
201 struct ifaddr *if_addr; /* pointer to link-level address */
202 const u_int8_t *if_broadcastaddr; /* linklevel broadcast bytestring */
203 struct rwlock if_afdata_lock;
204 void *if_afdata[AF_MAX];
205 int if_afdata_initialized;
207 /* Additional features hung off the interface. */
208 u_int if_fib; /* interface FIB */
209 struct vnet *if_vnet; /* pointer to network stack instance */
210 struct vnet *if_home_vnet; /* where this ifnet originates from */
211 struct ifvlantrunk *if_vlantrunk; /* pointer to 802.1q data */
212 struct bpf_if *if_bpf; /* packet filter structure */
213 int if_pcount; /* number of promiscuous listeners */
214 void *if_bridge; /* bridge glue */
215 void *if_lagg; /* lagg glue */
216 void *if_pf_kif; /* pf glue */
217 struct carp_if *if_carp; /* carp interface structure */
218 struct label *if_label; /* interface MAC label */
219 struct netmap_adapter *if_netmap; /* netmap(4) softc */
221 /* Various procedures of the layer2 encapsulation and drivers. */
222 int (*if_output) /* output routine (enqueue) */
223 (struct ifnet *, struct mbuf *, const struct sockaddr *,
225 void (*if_input) /* input routine (from h/w driver) */
226 (struct ifnet *, struct mbuf *);
227 if_start_fn_t if_start; /* initiate output routine */
228 if_ioctl_fn_t if_ioctl; /* ioctl routine */
229 if_init_fn_t if_init; /* Init routine */
230 int (*if_resolvemulti) /* validate/resolve multicast */
231 (struct ifnet *, struct sockaddr **, struct sockaddr *);
232 if_qflush_fn_t if_qflush; /* flush any queue */
233 if_transmit_fn_t if_transmit; /* initiate output routine */
235 void (*if_reassign) /* reassign to vnet routine */
236 (struct ifnet *, struct vnet *, char *);
237 if_get_counter_t if_get_counter; /* get counter values */
240 counter_u64_t if_counters[IFCOUNTERS];
242 /* Stuff that's only temporary and doesn't belong here. */
245 * Network adapter TSO limits:
246 * ===========================
248 * If the "if_hw_tsomax" field is zero the maximum segment
249 * length limit does not apply. If the "if_hw_tsomaxsegcount"
250 * or the "if_hw_tsomaxsegsize" field is zero the TSO segment
251 * count limit does not apply. If all three fields are zero,
252 * there is no TSO limit.
254 * NOTE: The TSO limits should reflect the values used in the
255 * BUSDMA tag a network adapter is using to load a mbuf chain
256 * for transmission. The TCP/IP network stack will subtract
257 * space for all linklevel and protocol level headers and
258 * ensure that the full mbuf chain passed to the network
259 * adapter fits within the given limits.
261 u_int if_hw_tsomax; /* TSO maximum size in bytes */
262 u_int if_hw_tsomaxsegcount; /* TSO maximum segment count */
263 u_int if_hw_tsomaxsegsize; /* TSO maximum segment size in bytes */
266 * Spare fields to be added before branching a stable branch, so
267 * that structure can be enhanced without changing the kernel
272 /* for compatibility with other BSDs */
273 #define if_addrlist if_addrhead
274 #define if_list if_link
275 #define if_name(ifp) ((ifp)->if_xname)
278 * Locks for address lists on the network interface.
280 #define IF_ADDR_LOCK_INIT(if) rw_init(&(if)->if_addr_lock, "if_addr_lock")
281 #define IF_ADDR_LOCK_DESTROY(if) rw_destroy(&(if)->if_addr_lock)
282 #define IF_ADDR_WLOCK(if) rw_wlock(&(if)->if_addr_lock)
283 #define IF_ADDR_WUNLOCK(if) rw_wunlock(&(if)->if_addr_lock)
284 #define IF_ADDR_RLOCK(if) rw_rlock(&(if)->if_addr_lock)
285 #define IF_ADDR_RUNLOCK(if) rw_runlock(&(if)->if_addr_lock)
286 #define IF_ADDR_LOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_LOCKED)
287 #define IF_ADDR_WLOCK_ASSERT(if) rw_assert(&(if)->if_addr_lock, RA_WLOCKED)
290 * Function variations on locking macros intended to be used by loadable
291 * kernel modules in order to divorce them from the internals of address list
294 void if_addr_rlock(struct ifnet *ifp); /* if_addrhead */
295 void if_addr_runlock(struct ifnet *ifp); /* if_addrhead */
296 void if_maddr_rlock(if_t ifp); /* if_multiaddrs */
297 void if_maddr_runlock(if_t ifp); /* if_multiaddrs */
300 #ifdef _SYS_EVENTHANDLER_H_
301 /* interface link layer address change event */
302 typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *);
303 EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t);
304 /* interface address change event */
305 typedef void (*ifaddr_event_handler_t)(void *, struct ifnet *);
306 EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t);
307 /* new interface arrival event */
308 typedef void (*ifnet_arrival_event_handler_t)(void *, struct ifnet *);
309 EVENTHANDLER_DECLARE(ifnet_arrival_event, ifnet_arrival_event_handler_t);
310 /* interface departure event */
311 typedef void (*ifnet_departure_event_handler_t)(void *, struct ifnet *);
312 EVENTHANDLER_DECLARE(ifnet_departure_event, ifnet_departure_event_handler_t);
313 /* Interface link state change event */
314 typedef void (*ifnet_link_event_handler_t)(void *, struct ifnet *, int);
315 EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_event_handler_t);
316 #endif /* _SYS_EVENTHANDLER_H_ */
322 char ifg_group[IFNAMSIZ];
325 TAILQ_HEAD(, ifg_member) ifg_members;
326 TAILQ_ENTRY(ifg_group) ifg_next;
330 TAILQ_ENTRY(ifg_member) ifgm_next;
331 struct ifnet *ifgm_ifp;
335 struct ifg_group *ifgl_group;
336 TAILQ_ENTRY(ifg_list) ifgl_next;
339 #ifdef _SYS_EVENTHANDLER_H_
340 /* group attach event */
341 typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *);
342 EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t);
343 /* group detach event */
344 typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *);
345 EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t);
346 /* group change event */
347 typedef void (*group_change_event_handler_t)(void *, const char *);
348 EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t);
349 #endif /* _SYS_EVENTHANDLER_H_ */
351 #define IF_AFDATA_LOCK_INIT(ifp) \
352 rw_init(&(ifp)->if_afdata_lock, "if_afdata")
354 #define IF_AFDATA_WLOCK(ifp) rw_wlock(&(ifp)->if_afdata_lock)
355 #define IF_AFDATA_RLOCK(ifp) rw_rlock(&(ifp)->if_afdata_lock)
356 #define IF_AFDATA_WUNLOCK(ifp) rw_wunlock(&(ifp)->if_afdata_lock)
357 #define IF_AFDATA_RUNLOCK(ifp) rw_runlock(&(ifp)->if_afdata_lock)
358 #define IF_AFDATA_LOCK(ifp) IF_AFDATA_WLOCK(ifp)
359 #define IF_AFDATA_UNLOCK(ifp) IF_AFDATA_WUNLOCK(ifp)
360 #define IF_AFDATA_TRYLOCK(ifp) rw_try_wlock(&(ifp)->if_afdata_lock)
361 #define IF_AFDATA_DESTROY(ifp) rw_destroy(&(ifp)->if_afdata_lock)
363 #define IF_AFDATA_LOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_LOCKED)
364 #define IF_AFDATA_RLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_RLOCKED)
365 #define IF_AFDATA_WLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_WLOCKED)
366 #define IF_AFDATA_UNLOCK_ASSERT(ifp) rw_assert(&(ifp)->if_afdata_lock, RA_UNLOCKED)
369 * 72 was chosen below because it is the size of a TCP/IP
370 * header (40) + the minimum mss (32).
373 #define IF_MAXMTU 65535
375 #define TOEDEV(ifp) ((ifp)->if_llsoftc)
378 * The ifaddr structure contains information about one address
379 * of an interface. They are maintained by the different address families,
380 * are allocated and attached when an address is set, and are linked
381 * together so all addresses for an interface can be located.
383 * NOTE: a 'struct ifaddr' is always at the beginning of a larger
384 * chunk of malloc'ed memory, where we store the three addresses
385 * (ifa_addr, ifa_dstaddr and ifa_netmask) referenced here.
388 struct sockaddr *ifa_addr; /* address of interface */
389 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
390 #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
391 struct sockaddr *ifa_netmask; /* used to determine subnet */
392 struct ifnet *ifa_ifp; /* back-pointer to interface */
393 struct carp_softc *ifa_carp; /* pointer to CARP data */
394 TAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */
395 void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
396 (int, struct rtentry *, struct rt_addrinfo *);
397 u_short ifa_flags; /* mostly rt_flags for cloning */
398 #define IFA_ROUTE RTF_UP /* route installed */
399 #define IFA_RTSELF RTF_HOST /* loopback route to self installed */
400 u_int ifa_refcnt; /* references to this structure */
402 counter_u64_t ifa_ipackets;
403 counter_u64_t ifa_opackets;
404 counter_u64_t ifa_ibytes;
405 counter_u64_t ifa_obytes;
408 /* For compatibility with other BSDs. SCTP uses it. */
409 #define ifa_list ifa_link
411 struct ifaddr * ifa_alloc(size_t size, int flags);
412 void ifa_free(struct ifaddr *ifa);
413 void ifa_ref(struct ifaddr *ifa);
416 * Multicast address structure. This is analogous to the ifaddr
417 * structure except that it keeps track of multicast addresses.
420 TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
421 struct sockaddr *ifma_addr; /* address this membership is for */
422 struct sockaddr *ifma_lladdr; /* link-layer translation, if any */
423 struct ifnet *ifma_ifp; /* back-pointer to interface */
424 u_int ifma_refcount; /* reference count */
425 void *ifma_protospec; /* protocol-specific state, if any */
426 struct ifmultiaddr *ifma_llifma; /* pointer to ifma for ifma_lladdr */
429 extern struct rwlock ifnet_rwlock;
430 extern struct sx ifnet_sxlock;
432 #define IFNET_WLOCK() do { \
433 sx_xlock(&ifnet_sxlock); \
434 rw_wlock(&ifnet_rwlock); \
437 #define IFNET_WUNLOCK() do { \
438 rw_wunlock(&ifnet_rwlock); \
439 sx_xunlock(&ifnet_sxlock); \
443 * To assert the ifnet lock, you must know not only whether it's for read or
444 * write, but also whether it was acquired with sleep support or not.
446 #define IFNET_RLOCK_ASSERT() sx_assert(&ifnet_sxlock, SA_SLOCKED)
447 #define IFNET_RLOCK_NOSLEEP_ASSERT() rw_assert(&ifnet_rwlock, RA_RLOCKED)
448 #define IFNET_WLOCK_ASSERT() do { \
449 sx_assert(&ifnet_sxlock, SA_XLOCKED); \
450 rw_assert(&ifnet_rwlock, RA_WLOCKED); \
453 #define IFNET_RLOCK() sx_slock(&ifnet_sxlock)
454 #define IFNET_RLOCK_NOSLEEP() rw_rlock(&ifnet_rwlock)
455 #define IFNET_RUNLOCK() sx_sunlock(&ifnet_sxlock)
456 #define IFNET_RUNLOCK_NOSLEEP() rw_runlock(&ifnet_rwlock)
459 * Look up an ifnet given its index; the _ref variant also acquires a
460 * reference that must be freed using if_rele(). It is almost always a bug
461 * to call ifnet_byindex() instead if ifnet_byindex_ref().
463 struct ifnet *ifnet_byindex(u_short idx);
464 struct ifnet *ifnet_byindex_locked(u_short idx);
465 struct ifnet *ifnet_byindex_ref(u_short idx);
468 * Given the index, ifaddr_byindex() returns the one and only
469 * link-level ifaddr for the interface. You are not supposed to use
470 * it to traverse the list of addresses associated to the interface.
472 struct ifaddr *ifaddr_byindex(u_short idx);
474 VNET_DECLARE(struct ifnethead, ifnet);
475 VNET_DECLARE(struct ifgrouphead, ifg_head);
476 VNET_DECLARE(int, if_index);
477 VNET_DECLARE(struct ifnet *, loif); /* first loopback interface */
479 #define V_ifnet VNET(ifnet)
480 #define V_ifg_head VNET(ifg_head)
481 #define V_if_index VNET(if_index)
482 #define V_loif VNET(loif)
484 int if_addgroup(struct ifnet *, const char *);
485 int if_delgroup(struct ifnet *, const char *);
486 int if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **);
487 int if_allmulti(struct ifnet *, int);
488 struct ifnet* if_alloc(u_char);
489 void if_attach(struct ifnet *);
490 void if_dead(struct ifnet *);
491 int if_delmulti(struct ifnet *, struct sockaddr *);
492 void if_delmulti_ifma(struct ifmultiaddr *);
493 void if_detach(struct ifnet *);
494 void if_vmove(struct ifnet *, struct vnet *);
495 void if_purgeaddrs(struct ifnet *);
496 void if_delallmulti(struct ifnet *);
497 void if_down(struct ifnet *);
499 if_findmulti(struct ifnet *, const struct sockaddr *);
500 void if_free(struct ifnet *);
501 void if_initname(struct ifnet *, const char *, int);
502 void if_link_state_change(struct ifnet *, int);
503 int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3);
504 void if_ref(struct ifnet *);
505 void if_rele(struct ifnet *);
506 int if_setlladdr(struct ifnet *, const u_char *, int);
507 void if_up(struct ifnet *);
508 int ifioctl(struct socket *, u_long, caddr_t, struct thread *);
509 int ifpromisc(struct ifnet *, int);
510 struct ifnet *ifunit(const char *);
511 struct ifnet *ifunit_ref(const char *);
513 int ifa_add_loopback_route(struct ifaddr *, struct sockaddr *);
514 int ifa_del_loopback_route(struct ifaddr *, struct sockaddr *);
515 int ifa_switch_loopback_route(struct ifaddr *, struct sockaddr *);
517 struct ifaddr *ifa_ifwithaddr(const struct sockaddr *);
518 int ifa_ifwithaddr_check(const struct sockaddr *);
519 struct ifaddr *ifa_ifwithbroadaddr(const struct sockaddr *, int);
520 struct ifaddr *ifa_ifwithdstaddr(const struct sockaddr *, int);
521 struct ifaddr *ifa_ifwithnet(const struct sockaddr *, int, int);
522 struct ifaddr *ifa_ifwithroute(int, const struct sockaddr *, struct sockaddr *,
524 struct ifaddr *ifaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
525 int ifa_preferred(struct ifaddr *, struct ifaddr *);
527 int if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen);
529 typedef void *if_com_alloc_t(u_char type, struct ifnet *ifp);
530 typedef void if_com_free_t(void *com, u_char type);
531 void if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
532 void if_deregister_com_alloc(u_char type);
533 void if_data_copy(struct ifnet *, struct if_data *);
534 uint64_t if_get_counter_default(struct ifnet *, ift_counter);
535 void if_inc_counter(struct ifnet *, ift_counter, int64_t);
537 #define IF_LLADDR(ifp) \
538 LLADDR((struct sockaddr_dl *)((ifp)->if_addr->ifa_addr))
540 uint64_t if_setbaudrate(if_t ifp, uint64_t baudrate);
541 uint64_t if_getbaudrate(if_t ifp);
542 int if_setcapabilities(if_t ifp, int capabilities);
543 int if_setcapabilitiesbit(if_t ifp, int setbit, int clearbit);
544 int if_getcapabilities(if_t ifp);
545 int if_togglecapenable(if_t ifp, int togglecap);
546 int if_setcapenable(if_t ifp, int capenable);
547 int if_setcapenablebit(if_t ifp, int setcap, int clearcap);
548 int if_getcapenable(if_t ifp);
549 const char *if_getdname(if_t ifp);
550 int if_setdev(if_t ifp, void *dev);
551 int if_setdrvflagbits(if_t ifp, int if_setflags, int clear_flags);
552 int if_getdrvflags(if_t ifp);
553 int if_setdrvflags(if_t ifp, int flags);
554 int if_clearhwassist(if_t ifp);
555 int if_sethwassistbits(if_t ifp, int toset, int toclear);
556 int if_sethwassist(if_t ifp, int hwassist_bit);
557 int if_gethwassist(if_t ifp);
558 int if_setsoftc(if_t ifp, void *softc);
559 void *if_getsoftc(if_t ifp);
560 int if_setflags(if_t ifp, int flags);
561 int if_setmtu(if_t ifp, int mtu);
562 int if_getmtu(if_t ifp);
563 int if_getmtu_family(if_t ifp, int family);
564 int if_setflagbits(if_t ifp, int set, int clear);
565 int if_getflags(if_t ifp);
566 int if_sendq_empty(if_t ifp);
567 int if_setsendqready(if_t ifp);
568 int if_setsendqlen(if_t ifp, int tx_desc_count);
569 int if_input(if_t ifp, struct mbuf* sendmp);
570 int if_sendq_prepend(if_t ifp, struct mbuf *m);
571 struct mbuf *if_dequeue(if_t ifp);
572 int if_setifheaderlen(if_t ifp, int len);
573 void if_setrcvif(struct mbuf *m, if_t ifp);
574 void if_setvtag(struct mbuf *m, u_int16_t tag);
575 u_int16_t if_getvtag(struct mbuf *m);
576 int if_vlantrunkinuse(if_t ifp);
577 caddr_t if_getlladdr(if_t ifp);
578 void *if_gethandle(u_char);
579 void if_bpfmtap(if_t ifp, struct mbuf *m);
580 void if_etherbpfmtap(if_t ifp, struct mbuf *m);
581 void if_vlancap(if_t ifp);
583 int if_setupmultiaddr(if_t ifp, void *mta, int *cnt, int max);
584 int if_multiaddr_array(if_t ifp, void *mta, int *cnt, int max);
585 int if_multiaddr_count(if_t ifp, int max);
587 int if_getamcount(if_t ifp);
588 struct ifaddr * if_getifaddr(if_t ifp);
591 void if_setinitfn(if_t ifp, void (*)(void *));
592 void if_setioctlfn(if_t ifp, int (*)(if_t, u_long, caddr_t));
593 void if_setstartfn(if_t ifp, void (*)(if_t));
594 void if_settransmitfn(if_t ifp, if_transmit_fn_t);
595 void if_setqflushfn(if_t ifp, if_qflush_fn_t);
596 void if_setgetcounterfn(if_t ifp, if_get_counter_t);
598 /* Revisit the below. These are inline functions originally */
599 int drbr_inuse_drv(if_t ifp, struct buf_ring *br);
600 struct mbuf* drbr_dequeue_drv(if_t ifp, struct buf_ring *br);
601 int drbr_needs_enqueue_drv(if_t ifp, struct buf_ring *br);
602 int drbr_enqueue_drv(if_t ifp, struct buf_ring *br, struct mbuf *m);
605 void if_hw_tsomax_common(if_t ifp, struct ifnet_hw_tsomax *);
606 int if_hw_tsomax_update(if_t ifp, struct ifnet_hw_tsomax *);
608 #ifdef DEVICE_POLLING
609 enum poll_cmd { POLL_ONLY, POLL_AND_CHECK_STATUS };
611 typedef int poll_handler_t(if_t ifp, enum poll_cmd cmd, int count);
612 int ether_poll_register(poll_handler_t *h, if_t ifp);
613 int ether_poll_deregister(if_t ifp);
614 #endif /* DEVICE_POLLING */
618 #include <net/ifq.h> /* XXXAO: temporary unconditional include */
620 #endif /* !_NET_IF_VAR_H_ */