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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * From: @(#)if.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/net/if_var.h,v 1.18.2.16 2003/04/15 18:11:19 fjoe Exp $
37 #ifndef _NET_IF_VAR_H_
38 #define _NET_IF_VAR_H_
40 #ifndef _SYS_SERIALIZE_H_
41 #include <sys/serialize.h>
47 #include <sys/mutex.h>
51 * Structures defining a network interface, providing a packet
52 * transport mechanism (ala level 0 of the PUP protocols).
54 * Each interface accepts output datagrams of a specified maximum
55 * length, and provides higher level routines with input datagrams
56 * received from its medium.
58 * Output occurs when the routine if_output is called, with four parameters:
59 * ifp->if_output(ifp, m, dst, rt)
60 * Here m is the mbuf chain to be sent and dst is the destination address.
61 * The output routine encapsulates the supplied datagram if necessary,
62 * and then transmits it on its medium.
64 * On input, each interface unwraps the data received by it, and either
65 * places it on the input queue of a internetwork datagram routine
66 * and posts the associated software interrupt, or passes the datagram to
67 * the routine if_input. It is called with the mbuf chain as parameter:
68 * ifp->if_input(ifp, m)
69 * The input routine removes the protocol dependent header if necessary.
71 * Routines exist for locating interfaces by their addresses
72 * or for locating a interface on a certain network, as well as more general
73 * routing and gateway routines maintaining information used to locate
74 * interfaces. These routines live in the files if.c and route.c
78 * Forward structure declarations for function prototypes [sic].
87 struct lwkt_serialize;
88 struct ifaddr_container;
96 #include <sys/queue.h> /* get TAILQ macros */
98 #include <net/altq/if_altq.h>
101 #include <sys/eventhandler.h>
102 #include <sys/mbuf.h>
103 #include <sys/systm.h> /* XXX */
104 #include <sys/thread2.h>
107 #define IF_DUNIT_NONE -1
109 TAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */
110 TAILQ_HEAD(ifaddrhead, ifaddr_container); /* instantiation is preserved in the list */
111 TAILQ_HEAD(ifprefixhead, ifprefix);
112 TAILQ_HEAD(ifmultihead, ifmultiaddr);
115 * Structure defining a queue for a network interface.
118 struct mbuf *ifq_head;
119 struct mbuf *ifq_tail;
126 * Note of IFPOLL_ENABLE
127 * 1) Any file(*.c) that depends on IFPOLL_ENABLE supports in this
128 * file should include opt_ifpoll.h at its beginning.
129 * 2) When struct changes, which are conditioned by IFPOLL_ENABLE,
130 * are to be introduced, please keep the struct's size and layout
131 * same, no matter whether IFPOLL_ENABLE is defined or not.
132 * See ifnet.if_npoll and ifnet.if_npoll_unused for example.
135 enum ifnet_serialize {
137 IFNET_SERIALIZE_MAIN,
138 IFNET_SERIALIZE_TX_BASE = 0x10000000,
139 IFNET_SERIALIZE_RX_BASE = 0x20000000
141 #define IFNET_SERIALIZE_TX IFNET_SERIALIZE_TX_BASE
142 #define IFNET_SERIALIZE_RX(i) (IFNET_SERIALIZE_RX_BASE + (i))
144 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
147 * Structure defining a network interface.
149 * (Would like to call this struct ``if'', but C isn't PL/1.)
153 * NB: For FreeBSD, it is assumed that each NIC driver's softc starts with
154 * one of these structures, typically held within an arpcom structure.
156 * struct <foo>_softc {
158 * struct ifnet ac_if;
164 * The assumption is used in a number of places, including many
165 * files in sys/net, device drivers, and sys/dev/mii.c:miibus_attach().
167 * Unfortunately devices' softc are opaque, so we depend on this layout
168 * to locate the struct ifnet from the softc in the generic code.
172 * ifnet is protected by calling if_serialize, if_tryserialize and
173 * if_deserialize serialize functions with the ifnet_serialize parameter.
174 * ifnet.if_snd is protected by its own spinlock. Callers of if_ioctl,
175 * if_watchdog, if_init, if_resolvemulti, and if_poll should call the
176 * ifnet serialize functions with IFNET_SERIALIZE_ALL. Callers of if_start
177 * sould call the ifnet serialize functions with IFNET_SERIALIZE_TX.
179 * FIXME: Device drivers usually use the same serializer for their interrupt
180 * FIXME: but this is not required.
182 * Caller of if_output must not serialize ifnet by calling ifnet serialize
183 * functions; if_output will call the ifnet serialize functions based on
184 * its own needs. Caller of if_input does not necessarily hold the related
187 * If a device driver installs the same serializer for its interrupt
188 * as for ifnet, then the driver only really needs to worry about further
189 * serialization in timeout based entry points. All other entry points
190 * will already be serialized. Older ISA drivers still using the old
191 * interrupt infrastructure will have to obtain and release the serializer
192 * in their interrupt routine themselves.
195 void *if_softc; /* pointer to driver state */
196 void *if_l2com; /* pointer to protocol bits */
197 TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */
198 char if_xname[IFNAMSIZ]; /* external name (name + unit) */
199 const char *if_dname; /* driver name */
200 int if_dunit; /* unit or IF_DUNIT_NONE */
201 void *if_vlantrunks; /* vlan trunks */
202 struct ifaddrhead *if_addrheads; /* array[NCPU] of TAILQs of addresses per if */
203 int if_pcount; /* number of promiscuous listeners */
204 void *if_carp; /* carp interfaces */
205 struct bpf_if *if_bpf; /* packet filter structure */
206 u_short if_index; /* numeric abbreviation for this if */
207 short if_timer; /* time 'til if_watchdog called */
208 int if_flags; /* up/down, broadcast, etc. */
209 int if_capabilities; /* interface capabilities */
210 int if_capenable; /* enabled features */
211 void *if_linkmib; /* link-type-specific MIB data */
212 size_t if_linkmiblen; /* length of above data */
213 struct if_data if_data;
214 struct ifmultihead if_multiaddrs; /* multicast addresses configured */
215 int if_amcount; /* number of all-multicast requests */
216 /* procedure handles */
217 int (*if_output) /* output routine (enqueue) */
218 (struct ifnet *, struct mbuf *, struct sockaddr *,
220 void (*if_input) /* input routine from hardware driver */
221 (struct ifnet *, struct mbuf *);
222 void (*if_start) /* initiate output routine */
224 int (*if_ioctl) /* ioctl routine */
225 (struct ifnet *, u_long, caddr_t, struct ucred *);
226 void (*if_watchdog) /* timer routine */
228 void (*if_init) /* Init routine */
230 int (*if_resolvemulti) /* validate/resolve multicast */
231 (struct ifnet *, struct sockaddr **, struct sockaddr *);
232 int (*if_start_cpuid) /* cpuid to run if_start */
234 TAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if */
235 void (*if_unused1)(void);
238 (struct ifnet *, enum ifnet_serialize);
239 void (*if_deserialize)
240 (struct ifnet *, enum ifnet_serialize);
241 int (*if_tryserialize)
242 (struct ifnet *, enum ifnet_serialize);
244 void (*if_serialize_assert)
245 (struct ifnet *, enum ifnet_serialize, boolean_t);
248 void (*if_serialize_unused)(void);
252 (struct ifnet *, struct ifpoll_info *);
256 void (*if_npoll_unused)(void);
257 int if_npoll_cpuid_unused;
259 struct ifaltq if_snd; /* output queue (includes altq) */
260 struct ifprefixhead if_prefixhead; /* list of prefixes per if */
261 const uint8_t *if_broadcastaddr;
262 void *if_bridge; /* bridge glue */
263 void *if_afdata[AF_MAX];
264 struct ifaddr *if_lladdr;
265 struct lwkt_serialize *if_serializer; /* serializer or MP lock */
266 struct lwkt_serialize if_default_serializer; /* if not supplied */
267 struct mtx if_ioctl_mtx; /* high-level ioctl serializing mutex */
269 struct netmsg_base *if_start_nmsg; /* percpu msgs to sched if_start */
270 void *if_pf_kif; /* pf interface abstraction */
273 typedef void if_init_f_t (void *);
275 #define if_mtu if_data.ifi_mtu
276 #define if_type if_data.ifi_type
277 #define if_physical if_data.ifi_physical
278 #define if_addrlen if_data.ifi_addrlen
279 #define if_hdrlen if_data.ifi_hdrlen
280 #define if_metric if_data.ifi_metric
281 #define if_link_state if_data.ifi_link_state
282 #define if_baudrate if_data.ifi_baudrate
283 #define if_hwassist if_data.ifi_hwassist
284 #define if_ipackets if_data.ifi_ipackets
285 #define if_ierrors if_data.ifi_ierrors
286 #define if_opackets if_data.ifi_opackets
287 #define if_oerrors if_data.ifi_oerrors
288 #define if_collisions if_data.ifi_collisions
289 #define if_ibytes if_data.ifi_ibytes
290 #define if_obytes if_data.ifi_obytes
291 #define if_imcasts if_data.ifi_imcasts
292 #define if_omcasts if_data.ifi_omcasts
293 #define if_iqdrops if_data.ifi_iqdrops
294 #define if_noproto if_data.ifi_noproto
295 #define if_lastchange if_data.ifi_lastchange
296 #define if_recvquota if_data.ifi_recvquota
297 #define if_xmitquota if_data.ifi_xmitquota
298 #define if_rawoutput(if, m, sa) if_output(if, m, sa, NULL)
300 /* for compatibility with other BSDs */
301 #define if_list if_link
306 * Device private output queues and input queues are queues of messages
307 * stored on ifqueue structures (defined above). Entries are added to
308 * and deleted from these structures by these macros.
310 #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
311 #define IF_DROP(ifq) ((ifq)->ifq_drops++)
312 #define IF_QLEN(ifq) ((ifq)->ifq_len)
313 #define IF_QEMPTY(ifq) (IF_QLEN(ifq) == 0)
315 #define IF_ENQUEUE(ifq, m) do { \
316 (m)->m_nextpkt = NULL; \
317 if ((ifq)->ifq_tail == NULL) \
318 (ifq)->ifq_head = m; \
320 (ifq)->ifq_tail->m_nextpkt = m; \
321 (ifq)->ifq_tail = m; \
325 #define IF_PREPEND(ifq, m) do { \
326 (m)->m_nextpkt = (ifq)->ifq_head; \
327 if ((ifq)->ifq_tail == NULL) \
328 (ifq)->ifq_tail = (m); \
329 (ifq)->ifq_head = (m); \
333 #define IF_DEQUEUE(ifq, m) do { \
334 (m) = (ifq)->ifq_head; \
336 if (((ifq)->ifq_head = (m)->m_nextpkt) == NULL) \
337 (ifq)->ifq_tail = NULL; \
338 (m)->m_nextpkt = NULL; \
343 #define IF_POLL(ifq, m) ((m) = (ifq)->ifq_head)
345 #define IF_DRAIN(ifq) do { \
348 IF_DEQUEUE(ifq, m); \
357 /* interface link layer address change event */
358 typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *);
359 EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t);
362 #define ASSERT_IFNET_SERIALIZED_ALL(ifp) \
363 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_ALL, TRUE)
364 #define ASSERT_IFNET_NOT_SERIALIZED_ALL(ifp) \
365 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_ALL, FALSE)
367 #define ASSERT_IFNET_SERIALIZED_TX(ifp) \
368 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_TX, TRUE)
369 #define ASSERT_IFNET_NOT_SERIALIZED_TX(ifp) \
370 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_TX, FALSE)
372 #define ASSERT_IFNET_SERIALIZED_MAIN(ifp) \
373 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_MAIN, TRUE)
374 #define ASSERT_IFNET_NOT_SERIALIZED_MAIN(ifp) \
375 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_MAIN, FALSE)
377 #define ASSERT_IFNET_SERIALIZED_ALL(ifp) ((void)0)
378 #define ASSERT_IFNET_NOT_SERIALIZED_ALL(ifp) ((void)0)
379 #define ASSERT_IFNET_SERIALIZED_TX(ifp) ((void)0)
380 #define ASSERT_IFNET_NOT_SERIALIZED_TX(ifp) ((void)0)
381 #define ASSERT_IFNET_SERIALIZED_MAIN(ifp) ((void)0)
382 #define ASSERT_IFNET_NOT_SERIALIZED_MAIN(ifp) ((void)0)
386 ifnet_serialize_all(struct ifnet *_ifp)
388 _ifp->if_serialize(_ifp, IFNET_SERIALIZE_ALL);
392 ifnet_deserialize_all(struct ifnet *_ifp)
394 _ifp->if_deserialize(_ifp, IFNET_SERIALIZE_ALL);
398 ifnet_tryserialize_all(struct ifnet *_ifp)
400 return _ifp->if_tryserialize(_ifp, IFNET_SERIALIZE_ALL);
404 ifnet_serialize_tx(struct ifnet *_ifp)
406 _ifp->if_serialize(_ifp, IFNET_SERIALIZE_TX);
410 ifnet_deserialize_tx(struct ifnet *_ifp)
412 _ifp->if_deserialize(_ifp, IFNET_SERIALIZE_TX);
416 ifnet_tryserialize_tx(struct ifnet *_ifp)
418 return _ifp->if_tryserialize(_ifp, IFNET_SERIALIZE_TX);
422 ifnet_serialize_main(struct ifnet *_ifp)
424 _ifp->if_serialize(_ifp, IFNET_SERIALIZE_MAIN);
428 ifnet_deserialize_main(struct ifnet *_ifp)
430 _ifp->if_deserialize(_ifp, IFNET_SERIALIZE_MAIN);
434 ifnet_tryserialize_main(struct ifnet *_ifp)
436 return _ifp->if_tryserialize(_ifp, IFNET_SERIALIZE_MAIN);
440 * 72 was chosen below because it is the size of a TCP/IP
441 * header (40) + the minimum mss (32).
444 #define IF_MAXMTU 65535
450 struct in_ifaddr_container {
451 struct in_ifaddr *ia;
452 LIST_ENTRY(in_ifaddr_container) ia_hash;
453 /* entry in bucket of inet addresses */
454 TAILQ_ENTRY(in_ifaddr_container) ia_link;
455 /* list of internet addresses */
456 struct ifaddr_container *ia_ifac; /* parent ifaddr_container */
459 struct ifaddr_container {
460 #define IFA_CONTAINER_MAGIC 0x19810219
461 #define IFA_CONTAINER_DEAD 0xc0dedead
462 uint32_t ifa_magic; /* IFA_CONTAINER_MAGIC */
464 TAILQ_ENTRY(ifaddr_container) ifa_link; /* queue macro glue */
465 u_int ifa_refcnt; /* references to this structure */
466 uint16_t ifa_listmask; /* IFA_LIST_ */
467 uint16_t ifa_prflags; /* protocol specific flags */
470 * Protocol specific states
473 struct in_ifaddr_container u_in_ifac;
477 #define IFA_LIST_IFADDRHEAD 0x01 /* on ifnet.if_addrheads[cpuid] */
478 #define IFA_LIST_IN_IFADDRHEAD 0x02 /* on in_ifaddrheads[cpuid] */
479 #define IFA_LIST_IN_IFADDRHASH 0x04 /* on in_ifaddrhashtbls[cpuid] */
481 #define IFA_PRF_FLAG0 0x01
482 #define IFA_PRF_FLAG1 0x02
483 #define IFA_PRF_FLAG2 0x04
484 #define IFA_PRF_FLAG3 0x08
487 * The ifaddr structure contains information about one address
488 * of an interface. They are maintained by the different address families,
489 * are allocated and attached when an address is set, and are linked
490 * together so all addresses for an interface can be located.
493 struct sockaddr *ifa_addr; /* address of interface */
494 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
495 #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
496 struct sockaddr *ifa_netmask; /* used to determine subnet */
497 struct if_data if_data; /* not all members are meaningful */
498 struct ifnet *ifa_ifp; /* back-pointer to interface */
500 struct ifaddr_container *ifa_containers;
501 void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
502 (int, struct rtentry *, struct rt_addrinfo *);
503 u_short ifa_flags; /* mostly rt_flags for cloning */
504 int ifa_ncnt; /* # of valid ifaddr_container */
505 int ifa_metric; /* cost of going out this interface */
507 struct rtentry *ifa_rt; /* XXXX for ROUTETOIF ????? */
509 int (*ifa_claim_addr) /* check if an addr goes to this if */
510 (struct ifaddr *, struct sockaddr *);
513 #define IFA_ROUTE RTF_UP /* route installed */
515 /* for compatibility with other BSDs */
516 #define ifa_list ifa_link
519 * The prefix structure contains information about one prefix
520 * of an interface. They are maintained by the different address families,
521 * are allocated and attached when an prefix or an address is set,
522 * and are linked together so all prefixes for an interface can be located.
525 struct sockaddr *ifpr_prefix; /* prefix of interface */
526 struct ifnet *ifpr_ifp; /* back-pointer to interface */
527 TAILQ_ENTRY(ifprefix) ifpr_list; /* queue macro glue */
528 u_char ifpr_plen; /* prefix length in bits */
529 u_char ifpr_type; /* protocol dependent prefix type */
533 * Multicast address structure. This is analogous to the ifaddr
534 * structure except that it keeps track of multicast addresses.
535 * Also, the reference count here is a count of requests for this
536 * address, not a count of pointers to this structure.
539 TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
540 struct sockaddr *ifma_addr; /* address this membership is for */
541 struct sockaddr *ifma_lladdr; /* link-layer translation, if any */
542 struct ifnet *ifma_ifp; /* back-pointer to interface */
543 u_int ifma_refcount; /* reference count */
544 void *ifma_protospec; /* protocol-specific state, if any */
549 #ifndef _SYS_SERIALIZE2_H_
550 #include <sys/serialize2.h>
559 /* interface address change event */
560 typedef void (*ifaddr_event_handler_t)(void *, struct ifnet *,
561 enum ifaddr_event, struct ifaddr *);
562 EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t);
563 /* new interface attach event */
564 typedef void (*ifnet_attach_event_handler_t)(void *, struct ifnet *);
565 EVENTHANDLER_DECLARE(ifnet_attach_event, ifnet_attach_event_handler_t);
566 /* interface detach event */
567 typedef void (*ifnet_detach_event_handler_t)(void *, struct ifnet *);
568 EVENTHANDLER_DECLARE(ifnet_detach_event, ifnet_detach_event_handler_t);
574 char ifg_group[IFNAMSIZ];
577 int ifg_carp_demoted;
578 TAILQ_HEAD(, ifg_member) ifg_members;
579 TAILQ_ENTRY(ifg_group) ifg_next;
583 TAILQ_ENTRY(ifg_member) ifgm_next;
584 struct ifnet *ifgm_ifp;
588 struct ifg_group *ifgl_group;
589 TAILQ_ENTRY(ifg_list) ifgl_next;
592 /* group attach event */
593 typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *);
594 EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t);
595 /* group detach event */
596 typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *);
597 EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t);
598 /* group change event */
599 typedef void (*group_change_event_handler_t)(void *, const char *);
600 EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t);
604 #define ASSERT_IFAC_VALID(ifac) do { \
605 KKASSERT((ifac)->ifa_magic == IFA_CONTAINER_MAGIC); \
606 KKASSERT((ifac)->ifa_refcnt > 0); \
609 #define ASSERT_IFAC_VALID(ifac) ((void)0)
613 _IFAREF(struct ifaddr *_ifa, int _cpu_id)
615 struct ifaddr_container *_ifac = &_ifa->ifa_containers[_cpu_id];
618 ASSERT_IFAC_VALID(_ifac);
624 IFAREF(struct ifaddr *_ifa)
626 _IFAREF(_ifa, mycpuid);
629 #include <sys/malloc.h>
631 MALLOC_DECLARE(M_IFADDR);
632 MALLOC_DECLARE(M_IFMADDR);
633 MALLOC_DECLARE(M_IFNET);
635 void ifac_free(struct ifaddr_container *, int);
638 _IFAFREE(struct ifaddr *_ifa, int _cpu_id)
640 struct ifaddr_container *_ifac = &_ifa->ifa_containers[_cpu_id];
643 ASSERT_IFAC_VALID(_ifac);
644 if (--_ifac->ifa_refcnt == 0)
645 ifac_free(_ifac, _cpu_id);
650 IFAFREE(struct ifaddr *_ifa)
652 _IFAFREE(_ifa, mycpuid);
655 struct lwkt_port *ifnet_portfn(int);
656 int ifnet_domsg(struct lwkt_msg *, int);
657 void ifnet_sendmsg(struct lwkt_msg *, int);
658 void ifnet_forwardmsg(struct lwkt_msg *, int);
659 struct ifnet *ifnet_byindex(unsigned short);
662 ifa_domsg(struct lwkt_msg *_lmsg, int _cpu)
664 return ifnet_domsg(_lmsg, _cpu);
668 ifa_sendmsg(struct lwkt_msg *_lmsg, int _cpu)
670 ifnet_sendmsg(_lmsg, _cpu);
674 ifa_forwardmsg(struct lwkt_msg *_lmsg, int _nextcpu)
676 ifnet_forwardmsg(_lmsg, _nextcpu);
680 ifnet_serialize_array_index(int _arrcnt, int _txoff, int _rxoff,
681 enum ifnet_serialize _slz)
685 if (_slz == IFNET_SERIALIZE_MAIN) {
687 } else if (_slz & IFNET_SERIALIZE_TX_BASE) {
688 _off = (_slz & ~IFNET_SERIALIZE_TX_BASE) + _txoff;
689 KASSERT(_off < _arrcnt,
690 ("invalid TX serializer %#x", _slz));
691 } else if (_slz & IFNET_SERIALIZE_RX_BASE) {
692 _off = (_slz & ~IFNET_SERIALIZE_RX_BASE) + _rxoff;
693 KASSERT(_off < _arrcnt,
694 ("invalid RX serializer %#x", _slz));
696 panic("unknown serializer %#x", _slz);
702 ifnet_serialize_array_enter(lwkt_serialize_t *_arr, int _arrcnt,
703 int _txoff, int _rxoff, enum ifnet_serialize _slz)
707 if (_slz == IFNET_SERIALIZE_ALL) {
708 lwkt_serialize_array_enter(_arr, _arrcnt, 0);
712 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
713 lwkt_serialize_enter(_arr[_off]);
717 ifnet_serialize_array_exit(lwkt_serialize_t *_arr, int _arrcnt,
718 int _txoff, int _rxoff, enum ifnet_serialize _slz)
722 if (_slz == IFNET_SERIALIZE_ALL) {
723 lwkt_serialize_array_exit(_arr, _arrcnt, 0);
727 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
728 lwkt_serialize_exit(_arr[_off]);
732 ifnet_serialize_array_try(lwkt_serialize_t *_arr, int _arrcnt,
733 int _txoff, int _rxoff, enum ifnet_serialize _slz)
737 if (_slz == IFNET_SERIALIZE_ALL)
738 return lwkt_serialize_array_try(_arr, _arrcnt, 0);
740 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
741 return lwkt_serialize_try(_arr[_off]);
747 ifnet_serialize_array_assert(lwkt_serialize_t *_arr, int _arrcnt,
748 int _txoff, int _rxoff, enum ifnet_serialize _slz, boolean_t _serialized)
752 if (_slz == IFNET_SERIALIZE_ALL) {
756 for (_i = 0; _i < _arrcnt; ++_i)
757 ASSERT_SERIALIZED(_arr[_i]);
759 for (_i = 0; _i < _arrcnt; ++_i)
760 ASSERT_NOT_SERIALIZED(_arr[_i]);
765 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
767 ASSERT_SERIALIZED(_arr[_off]);
769 ASSERT_NOT_SERIALIZED(_arr[_off]);
772 #endif /* INVARIANTS */
774 #define REINPUT_KEEPRCVIF 0x0001 /* ether_reinput_oncpu() */
775 #define REINPUT_RUNBPF 0x0002 /* ether_reinput_oncpu() */
777 extern struct ifnethead ifnet;
778 extern struct ifnet **ifindex2ifnet;
779 extern int ifqmaxlen;
780 extern struct ifnet loif[];
786 void ether_ifattach(struct ifnet *, uint8_t *, struct lwkt_serialize *);
787 void ether_ifattach_bpf(struct ifnet *, uint8_t *, u_int, u_int,
788 struct lwkt_serialize *);
789 void ether_ifdetach(struct ifnet *);
790 void ether_demux(struct mbuf *);
791 void ether_demux_oncpu(struct ifnet *, struct mbuf *);
792 void ether_reinput_oncpu(struct ifnet *, struct mbuf *, int);
793 void ether_input_pkt(struct ifnet *, struct mbuf *, const struct pktinfo *);
794 int ether_output_frame(struct ifnet *, struct mbuf *);
795 int ether_ioctl(struct ifnet *, u_long, caddr_t);
796 boolean_t ether_tso_pullup(struct mbuf **, int *, struct ip **, int *,
797 struct tcphdr **, int *);
798 struct ifnet *ether_bridge_interface(struct ifnet *ifp);
799 uint32_t ether_crc32_le(const uint8_t *, size_t);
800 uint32_t ether_crc32_be(const uint8_t *, size_t);
802 int if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **);
803 int if_allmulti(struct ifnet *, int);
804 void if_attach(struct ifnet *, struct lwkt_serialize *);
805 int if_delmulti(struct ifnet *, struct sockaddr *);
806 void if_delallmulti(struct ifnet *ifp);
807 void if_purgeaddrs_nolink(struct ifnet *);
808 void if_detach(struct ifnet *);
809 void if_down(struct ifnet *);
810 void if_link_state_change(struct ifnet *);
811 void if_initname(struct ifnet *, const char *, int);
812 int if_getanyethermac(uint16_t *, int);
813 int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3);
814 struct ifnet *if_alloc(uint8_t);
815 void if_free(struct ifnet *);
816 void if_route(struct ifnet *, int flag, int fam);
817 int if_setlladdr(struct ifnet *, const u_char *, int);
818 void if_unroute(struct ifnet *, int flag, int fam);
819 void if_up(struct ifnet *);
820 /*void ifinit(void);*/ /* declared in systm.h for main() */
821 int ifioctl(struct socket *, u_long, caddr_t, struct ucred *);
822 int ifpromisc(struct ifnet *, int);
823 struct ifnet *ifunit(const char *);
824 struct ifnet *if_withname(struct sockaddr *);
826 struct ifg_group *if_creategroup(const char *);
827 int if_addgroup(struct ifnet *, const char *);
828 int if_delgroup(struct ifnet *, const char *);
829 int if_getgroup(caddr_t, struct ifnet *);
830 int if_getgroupmembers(caddr_t);
832 struct ifaddr *ifa_ifwithaddr(struct sockaddr *);
833 struct ifaddr *ifa_ifwithdstaddr(struct sockaddr *);
834 struct ifaddr *ifa_ifwithnet(struct sockaddr *);
835 struct ifaddr *ifa_ifwithroute(int, struct sockaddr *, struct sockaddr *);
836 struct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *);
838 typedef void *if_com_alloc_t(u_char type, struct ifnet *ifp);
839 typedef void if_com_free_t(void *com, u_char type);
840 void if_register_com_alloc(u_char, if_com_alloc_t *a, if_com_free_t *);
841 void if_deregister_com_alloc(u_char);
843 void *ifa_create(int, int);
844 void ifa_destroy(struct ifaddr *);
845 void ifa_iflink(struct ifaddr *, struct ifnet *, int);
846 void ifa_ifunlink(struct ifaddr *, struct ifnet *);
848 struct ifaddr *ifaddr_byindex(unsigned short);
850 struct ifmultiaddr *ifmaof_ifpforaddr(struct sockaddr *, struct ifnet *);
851 int if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen);
852 void if_devstart(struct ifnet *ifp);
853 int if_ring_count2(int cnt, int cnt_max);
855 #define IF_LLSOCKADDR(ifp) \
856 ((struct sockaddr_dl *)(ifp)->if_lladdr->ifa_addr)
857 #define IF_LLADDR(ifp) LLADDR(IF_LLSOCKADDR(ifp))
860 int ifpoll_register(struct ifnet *);
861 int ifpoll_deregister(struct ifnet *);
862 #endif /* IFPOLL_ENABLE */
866 #endif /* !_NET_IF_VAR_H_ */