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;
97 #include <sys/queue.h> /* get TAILQ macros */
99 #include <net/altq/if_altq.h>
102 #include <sys/eventhandler.h>
103 #include <sys/mbuf.h>
104 #include <sys/systm.h> /* XXX */
105 #include <sys/thread2.h>
108 #define IF_DUNIT_NONE -1
110 TAILQ_HEAD(ifnethead, ifnet); /* we use TAILQs so that the order of */
111 TAILQ_HEAD(ifaddrhead, ifaddr_container); /* instantiation is preserved in the list */
112 TAILQ_HEAD(ifprefixhead, ifprefix);
113 TAILQ_HEAD(ifmultihead, ifmultiaddr);
116 * Structure defining a queue for a network interface.
119 struct mbuf *ifq_head;
120 struct mbuf *ifq_tail;
127 * Note of IFPOLL_ENABLE
128 * 1) Any file(*.c) that depends on IFPOLL_ENABLE supports in this
129 * file should include opt_ifpoll.h at its beginning.
130 * 2) When struct changes, which are conditioned by IFPOLL_ENABLE,
131 * are to be introduced, please keep the struct's size and layout
132 * same, no matter whether IFPOLL_ENABLE is defined or not.
133 * See ifnet.if_npoll and ifnet.if_npoll_unused for example.
136 enum ifnet_serialize {
138 IFNET_SERIALIZE_TX_BASE = 0x10000000,
140 #define IFNET_SERIALIZE_TX(i) (IFNET_SERIALIZE_TX_BASE + (i))
142 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
145 * Structure defining a network interface.
147 * (Would like to call this struct ``if'', but C isn't PL/1.)
151 * NB: For FreeBSD, it is assumed that each NIC driver's softc starts with
152 * one of these structures, typically held within an arpcom structure.
154 * struct <foo>_softc {
156 * struct ifnet ac_if;
162 * The assumption is used in a number of places, including many
163 * files in sys/net, device drivers, and sys/dev/mii.c:miibus_attach().
165 * Unfortunately devices' softc are opaque, so we depend on this layout
166 * to locate the struct ifnet from the softc in the generic code.
170 * ifnet is protected by calling if_serialize, if_tryserialize and
171 * if_deserialize serialize functions with the ifnet_serialize parameter.
172 * ifnet.if_snd is protected by its own spinlock. Callers of if_ioctl,
173 * if_watchdog, if_init, if_resolvemulti, and if_poll should call the
174 * ifnet serialize functions with IFNET_SERIALIZE_ALL. Callers of if_start
175 * sould call the ifnet serialize functions with IFNET_SERIALIZE_TX.
177 * FIXME: Device drivers usually use the same serializer for their interrupt
178 * FIXME: but this is not required.
180 * Caller of if_output must not serialize ifnet by calling ifnet serialize
181 * functions; if_output will call the ifnet serialize functions based on
182 * its own needs. Caller of if_input does not necessarily hold the related
185 * If a device driver installs the same serializer for its interrupt
186 * as for ifnet, then the driver only really needs to worry about further
187 * serialization in timeout based entry points. All other entry points
188 * will already be serialized. Older ISA drivers still using the old
189 * interrupt infrastructure will have to obtain and release the serializer
190 * in their interrupt routine themselves.
193 void *if_softc; /* pointer to driver state */
194 void *if_l2com; /* pointer to protocol bits */
195 TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */
196 char if_xname[IFNAMSIZ]; /* external name (name + unit) */
197 const char *if_dname; /* driver name */
198 int if_dunit; /* unit or IF_DUNIT_NONE */
199 void *if_vlantrunks; /* vlan trunks */
200 struct ifaddrhead *if_addrheads; /* array[NCPU] of TAILQs of addresses per if */
201 int if_pcount; /* number of promiscuous listeners */
202 void *if_carp; /* carp interfaces */
203 struct bpf_if *if_bpf; /* packet filter structure */
204 u_short if_index; /* numeric abbreviation for this if */
205 short if_timer; /* time 'til if_watchdog called */
206 int if_flags; /* up/down, broadcast, etc. */
207 int if_capabilities; /* interface capabilities */
208 int if_capenable; /* enabled features */
209 void *if_linkmib; /* link-type-specific MIB data */
210 size_t if_linkmiblen; /* length of above data */
211 struct if_data if_data;
212 struct ifmultihead if_multiaddrs; /* multicast addresses configured */
213 int if_amcount; /* number of all-multicast requests */
214 /* procedure handles */
215 int (*if_output) /* output routine (enqueue) */
216 (struct ifnet *, struct mbuf *, struct sockaddr *,
218 void (*if_input) /* input routine from hardware driver */
219 (struct ifnet *, struct mbuf *);
220 void (*if_start) /* initiate output routine */
221 (struct ifnet *, struct ifaltq_subque *);
222 int (*if_ioctl) /* ioctl routine */
223 (struct ifnet *, u_long, caddr_t, struct ucred *);
224 void (*if_watchdog) /* timer routine */
226 void (*if_init) /* Init routine */
228 int (*if_resolvemulti) /* validate/resolve multicast */
229 (struct ifnet *, struct sockaddr **, struct sockaddr *);
231 TAILQ_HEAD(, ifg_list) if_groups; /* linked list of groups per if */
233 (struct ifaltq *, int);
236 (struct ifnet *, enum ifnet_serialize);
237 void (*if_deserialize)
238 (struct ifnet *, enum ifnet_serialize);
239 int (*if_tryserialize)
240 (struct ifnet *, enum ifnet_serialize);
242 void (*if_serialize_assert)
243 (struct ifnet *, enum ifnet_serialize, boolean_t);
246 void (*if_serialize_unused)(void);
250 (struct ifnet *, struct ifpoll_info *);
253 void (*if_npoll_unused)(void);
255 int if_tsolen; /* max TSO length */
256 struct ifaltq if_snd; /* output queue (includes altq) */
257 struct ifprefixhead if_prefixhead; /* list of prefixes per if */
258 const uint8_t *if_broadcastaddr;
259 void *if_bridge; /* bridge glue */
260 void *if_afdata[AF_MAX];
261 struct ifaddr *if_lladdr;
262 struct lwkt_serialize *if_serializer; /* serializer or MP lock */
263 struct lwkt_serialize if_default_serializer; /* if not supplied */
264 struct mtx if_ioctl_mtx; /* high-level ioctl serializing mutex */
266 struct ifdata_pcpu *if_data_pcpu;
267 void *if_pf_kif; /* pf interface abstraction */
270 typedef void if_init_f_t (void *);
272 #define if_mtu if_data.ifi_mtu
273 #define if_type if_data.ifi_type
274 #define if_physical if_data.ifi_physical
275 #define if_addrlen if_data.ifi_addrlen
276 #define if_hdrlen if_data.ifi_hdrlen
277 #define if_metric if_data.ifi_metric
278 #define if_link_state if_data.ifi_link_state
279 #define if_baudrate if_data.ifi_baudrate
280 #define if_hwassist if_data.ifi_hwassist
281 #define if_ipackets if_data.ifi_ipackets
282 #define if_ierrors if_data.ifi_ierrors
283 #define if_opackets if_data.ifi_opackets
284 #define if_oerrors if_data.ifi_oerrors
285 #define if_collisions if_data.ifi_collisions
286 #define if_ibytes if_data.ifi_ibytes
287 #define if_obytes if_data.ifi_obytes
288 #define if_imcasts if_data.ifi_imcasts
289 #define if_omcasts if_data.ifi_omcasts
290 #define if_iqdrops if_data.ifi_iqdrops
291 #define if_noproto if_data.ifi_noproto
292 #define if_lastchange if_data.ifi_lastchange
293 #define if_recvquota if_data.ifi_recvquota
294 #define if_xmitquota if_data.ifi_xmitquota
295 #define if_rawoutput(if, m, sa) if_output(if, m, sa, NULL)
297 /* for compatibility with other BSDs */
298 #define if_list if_link
301 u_long ifd_ipackets; /* packets received on interface */
302 u_long ifd_ierrors; /* input errors on interface */
303 u_long ifd_opackets; /* packets sent on interface */
304 u_long ifd_oerrors; /* output errors on interface */
305 u_long ifd_collisions; /* collisions on csma interfaces */
306 u_long ifd_ibytes; /* total number of octets received */
307 u_long ifd_obytes; /* total number of octets sent */
308 u_long ifd_imcasts; /* packets received via multicast */
309 u_long ifd_omcasts; /* packets sent via multicast */
310 u_long ifd_iqdrops; /* dropped on input, this interface */
311 u_long ifd_noproto; /* destined for unsupported protocol */
317 * Device private output queues and input queues are queues of messages
318 * stored on ifqueue structures (defined above). Entries are added to
319 * and deleted from these structures by these macros.
321 #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
322 #define IF_DROP(ifq) ((ifq)->ifq_drops++)
323 #define IF_QLEN(ifq) ((ifq)->ifq_len)
324 #define IF_QEMPTY(ifq) (IF_QLEN(ifq) == 0)
326 #define IF_ENQUEUE(ifq, m) do { \
327 (m)->m_nextpkt = NULL; \
328 if ((ifq)->ifq_tail == NULL) \
329 (ifq)->ifq_head = m; \
331 (ifq)->ifq_tail->m_nextpkt = m; \
332 (ifq)->ifq_tail = m; \
336 #define IF_PREPEND(ifq, m) do { \
337 (m)->m_nextpkt = (ifq)->ifq_head; \
338 if ((ifq)->ifq_tail == NULL) \
339 (ifq)->ifq_tail = (m); \
340 (ifq)->ifq_head = (m); \
344 #define IF_DEQUEUE(ifq, m) do { \
345 (m) = (ifq)->ifq_head; \
347 if (((ifq)->ifq_head = (m)->m_nextpkt) == NULL) \
348 (ifq)->ifq_tail = NULL; \
349 (m)->m_nextpkt = NULL; \
354 #define IF_POLL(ifq, m) ((m) = (ifq)->ifq_head)
356 #define IF_DRAIN(ifq) do { \
359 IF_DEQUEUE(ifq, m); \
368 /* interface link layer address change event */
369 typedef void (*iflladdr_event_handler_t)(void *, struct ifnet *);
370 EVENTHANDLER_DECLARE(iflladdr_event, iflladdr_event_handler_t);
373 #define ASSERT_IFNET_SERIALIZED_ALL(ifp) \
374 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_ALL, TRUE)
375 #define ASSERT_IFNET_NOT_SERIALIZED_ALL(ifp) \
376 (ifp)->if_serialize_assert((ifp), IFNET_SERIALIZE_ALL, FALSE)
378 #define ASSERT_IFNET_SERIALIZED_TX(ifp, ifsq) \
379 (ifp)->if_serialize_assert((ifp), \
380 IFNET_SERIALIZE_TX((ifsq)->ifsq_index), TRUE)
381 #define ASSERT_IFNET_NOT_SERIALIZED_TX(ifp, ifsq) \
382 (ifp)->if_serialize_assert((ifp), \
383 IFNET_SERIALIZE_TX((ifsq)->ifsq_index), FALSE)
385 #define ASSERT_IFNET_SERIALIZED_ALL(ifp) ((void)0)
386 #define ASSERT_IFNET_NOT_SERIALIZED_ALL(ifp) ((void)0)
387 #define ASSERT_IFNET_SERIALIZED_TX(ifp, ifsq) ((void)0)
388 #define ASSERT_IFNET_NOT_SERIALIZED_TX(ifp, ifsq) ((void)0)
392 ifnet_serialize_all(struct ifnet *_ifp)
394 _ifp->if_serialize(_ifp, IFNET_SERIALIZE_ALL);
398 ifnet_deserialize_all(struct ifnet *_ifp)
400 _ifp->if_deserialize(_ifp, IFNET_SERIALIZE_ALL);
404 ifnet_tryserialize_all(struct ifnet *_ifp)
406 return _ifp->if_tryserialize(_ifp, IFNET_SERIALIZE_ALL);
410 ifnet_serialize_tx(struct ifnet *_ifp, const struct ifaltq_subque *_ifsq)
412 _ifp->if_serialize(_ifp, IFNET_SERIALIZE_TX(_ifsq->ifsq_index));
416 ifnet_deserialize_tx(struct ifnet *_ifp, const struct ifaltq_subque *_ifsq)
418 _ifp->if_deserialize(_ifp, IFNET_SERIALIZE_TX(_ifsq->ifsq_index));
422 ifnet_tryserialize_tx(struct ifnet *_ifp, const struct ifaltq_subque *_ifsq)
424 return _ifp->if_tryserialize(_ifp,
425 IFNET_SERIALIZE_TX(_ifsq->ifsq_index));
429 * 72 was chosen below because it is the size of a TCP/IP
430 * header (40) + the minimum mss (32).
433 #define IF_MAXMTU 65535
439 struct in_ifaddr_container {
440 struct in_ifaddr *ia;
441 LIST_ENTRY(in_ifaddr_container) ia_hash;
442 /* entry in bucket of inet addresses */
443 TAILQ_ENTRY(in_ifaddr_container) ia_link;
444 /* list of internet addresses */
445 struct ifaddr_container *ia_ifac; /* parent ifaddr_container */
448 struct ifaddr_container {
449 #define IFA_CONTAINER_MAGIC 0x19810219
450 #define IFA_CONTAINER_DEAD 0xc0dedead
451 uint32_t ifa_magic; /* IFA_CONTAINER_MAGIC */
453 TAILQ_ENTRY(ifaddr_container) ifa_link; /* queue macro glue */
454 u_int ifa_refcnt; /* references to this structure */
455 uint16_t ifa_listmask; /* IFA_LIST_ */
456 uint16_t ifa_prflags; /* protocol specific flags */
458 u_long ifa_ipackets; /* packets received on addr */
459 u_long ifa_ibytes; /* bytes received on addr */
460 u_long ifa_opackets; /* packets sent on addr */
461 u_long ifa_obytes; /* bytes sent on addr */
464 * Protocol specific states
467 struct in_ifaddr_container u_in_ifac;
471 #define IFA_LIST_IFADDRHEAD 0x01 /* on ifnet.if_addrheads[cpuid] */
472 #define IFA_LIST_IN_IFADDRHEAD 0x02 /* on in_ifaddrheads[cpuid] */
473 #define IFA_LIST_IN_IFADDRHASH 0x04 /* on in_ifaddrhashtbls[cpuid] */
475 #define IFA_PRF_FLAG0 0x01
476 #define IFA_PRF_FLAG1 0x02
477 #define IFA_PRF_FLAG2 0x04
478 #define IFA_PRF_FLAG3 0x08
481 * The ifaddr structure contains information about one address
482 * of an interface. They are maintained by the different address families,
483 * are allocated and attached when an address is set, and are linked
484 * together so all addresses for an interface can be located.
487 struct sockaddr *ifa_addr; /* address of interface */
488 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
489 #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
490 struct sockaddr *ifa_netmask; /* used to determine subnet */
491 struct if_data if_data; /* not all members are meaningful */
492 struct ifnet *ifa_ifp; /* back-pointer to interface */
494 struct ifaddr_container *ifa_containers;
495 void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
496 (int, struct rtentry *, struct rt_addrinfo *);
497 u_short ifa_flags; /* mostly rt_flags for cloning */
498 int ifa_ncnt; /* # of valid ifaddr_container */
499 int ifa_metric; /* cost of going out this interface */
501 struct rtentry *ifa_rt; /* XXXX for ROUTETOIF ????? */
503 int (*ifa_claim_addr) /* check if an addr goes to this if */
504 (struct ifaddr *, struct sockaddr *);
507 #define IFA_ROUTE RTF_UP /* route installed */
509 /* for compatibility with other BSDs */
510 #define ifa_list ifa_link
513 * The prefix structure contains information about one prefix
514 * of an interface. They are maintained by the different address families,
515 * are allocated and attached when an prefix or an address is set,
516 * and are linked together so all prefixes for an interface can be located.
519 struct sockaddr *ifpr_prefix; /* prefix of interface */
520 struct ifnet *ifpr_ifp; /* back-pointer to interface */
521 TAILQ_ENTRY(ifprefix) ifpr_list; /* queue macro glue */
522 u_char ifpr_plen; /* prefix length in bits */
523 u_char ifpr_type; /* protocol dependent prefix type */
527 * Multicast address structure. This is analogous to the ifaddr
528 * structure except that it keeps track of multicast addresses.
529 * Also, the reference count here is a count of requests for this
530 * address, not a count of pointers to this structure.
533 TAILQ_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
534 struct sockaddr *ifma_addr; /* address this membership is for */
535 struct sockaddr *ifma_lladdr; /* link-layer translation, if any */
536 struct ifnet *ifma_ifp; /* back-pointer to interface */
537 u_int ifma_refcount; /* reference count */
538 void *ifma_protospec; /* protocol-specific state, if any */
543 #define IFA_STAT_INC(ifa, name, v) \
545 (ifa)->ifa_containers[mycpuid].ifa_##name += (v); \
548 #define IFNET_STAT_INC(ifp, name, v) \
550 (ifp)->if_data_pcpu[mycpuid].ifd_##name += (v); \
553 #define IFNET_STAT_SET(ifp, name, v) \
556 (ifp)->if_data_pcpu[0].ifd_##name = (v); \
557 for (_cpu = 1; _cpu < ncpus; ++_cpu) \
558 (ifp)->if_data_pcpu[_cpu].ifd_##name = 0; \
561 #define IFNET_STAT_GET(ifp, name, v) \
564 (v) = (ifp)->if_data_pcpu[0].ifd_##name; \
565 for (_cpu = 1; _cpu < ncpus; ++_cpu) \
566 (v) += (ifp)->if_data_pcpu[_cpu].ifd_##name; \
569 #ifndef _SYS_SERIALIZE2_H_
570 #include <sys/serialize2.h>
579 /* interface address change event */
580 typedef void (*ifaddr_event_handler_t)(void *, struct ifnet *,
581 enum ifaddr_event, struct ifaddr *);
582 EVENTHANDLER_DECLARE(ifaddr_event, ifaddr_event_handler_t);
583 /* new interface attach event */
584 typedef void (*ifnet_attach_event_handler_t)(void *, struct ifnet *);
585 EVENTHANDLER_DECLARE(ifnet_attach_event, ifnet_attach_event_handler_t);
586 /* interface detach event */
587 typedef void (*ifnet_detach_event_handler_t)(void *, struct ifnet *);
588 EVENTHANDLER_DECLARE(ifnet_detach_event, ifnet_detach_event_handler_t);
594 char ifg_group[IFNAMSIZ];
597 int ifg_carp_demoted;
598 TAILQ_HEAD(, ifg_member) ifg_members;
599 TAILQ_ENTRY(ifg_group) ifg_next;
603 TAILQ_ENTRY(ifg_member) ifgm_next;
604 struct ifnet *ifgm_ifp;
608 struct ifg_group *ifgl_group;
609 TAILQ_ENTRY(ifg_list) ifgl_next;
612 /* group attach event */
613 typedef void (*group_attach_event_handler_t)(void *, struct ifg_group *);
614 EVENTHANDLER_DECLARE(group_attach_event, group_attach_event_handler_t);
615 /* group detach event */
616 typedef void (*group_detach_event_handler_t)(void *, struct ifg_group *);
617 EVENTHANDLER_DECLARE(group_detach_event, group_detach_event_handler_t);
618 /* group change event */
619 typedef void (*group_change_event_handler_t)(void *, const char *);
620 EVENTHANDLER_DECLARE(group_change_event, group_change_event_handler_t);
624 #define ASSERT_IFAC_VALID(ifac) do { \
625 KKASSERT((ifac)->ifa_magic == IFA_CONTAINER_MAGIC); \
626 KKASSERT((ifac)->ifa_refcnt > 0); \
629 #define ASSERT_IFAC_VALID(ifac) ((void)0)
633 _IFAREF(struct ifaddr *_ifa, int _cpu_id)
635 struct ifaddr_container *_ifac = &_ifa->ifa_containers[_cpu_id];
638 ASSERT_IFAC_VALID(_ifac);
644 IFAREF(struct ifaddr *_ifa)
646 _IFAREF(_ifa, mycpuid);
649 #include <sys/malloc.h>
651 MALLOC_DECLARE(M_IFADDR);
652 MALLOC_DECLARE(M_IFMADDR);
653 MALLOC_DECLARE(M_IFNET);
655 void ifac_free(struct ifaddr_container *, int);
658 _IFAFREE(struct ifaddr *_ifa, int _cpu_id)
660 struct ifaddr_container *_ifac = &_ifa->ifa_containers[_cpu_id];
663 ASSERT_IFAC_VALID(_ifac);
664 if (--_ifac->ifa_refcnt == 0)
665 ifac_free(_ifac, _cpu_id);
670 IFAFREE(struct ifaddr *_ifa)
672 _IFAFREE(_ifa, mycpuid);
675 struct lwkt_port *ifnet_portfn(int);
676 int ifnet_domsg(struct lwkt_msg *, int);
677 void ifnet_sendmsg(struct lwkt_msg *, int);
678 void ifnet_forwardmsg(struct lwkt_msg *, int);
679 struct ifnet *ifnet_byindex(unsigned short);
682 ifa_domsg(struct lwkt_msg *_lmsg, int _cpu)
684 return ifnet_domsg(_lmsg, _cpu);
688 ifa_sendmsg(struct lwkt_msg *_lmsg, int _cpu)
690 ifnet_sendmsg(_lmsg, _cpu);
694 ifa_forwardmsg(struct lwkt_msg *_lmsg, int _nextcpu)
696 ifnet_forwardmsg(_lmsg, _nextcpu);
700 ifnet_serialize_array_index(int _arrcnt, int _txoff, int _rxoff,
701 enum ifnet_serialize _slz)
705 KASSERT(_slz & IFNET_SERIALIZE_TX_BASE,
706 ("unknown serializer %#x", _slz));
707 _off = (_slz & ~IFNET_SERIALIZE_TX_BASE) + _txoff;
708 KASSERT(_off < _arrcnt, ("invalid TX serializer %#x", _slz));
714 ifnet_serialize_array_enter(lwkt_serialize_t *_arr, int _arrcnt,
715 int _txoff, int _rxoff, enum ifnet_serialize _slz)
719 if (__predict_false(_slz == IFNET_SERIALIZE_ALL)) {
720 lwkt_serialize_array_enter(_arr, _arrcnt, 0);
724 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
725 lwkt_serialize_enter(_arr[_off]);
729 ifnet_serialize_array_exit(lwkt_serialize_t *_arr, int _arrcnt,
730 int _txoff, int _rxoff, enum ifnet_serialize _slz)
734 if (__predict_false(_slz == IFNET_SERIALIZE_ALL)) {
735 lwkt_serialize_array_exit(_arr, _arrcnt, 0);
739 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
740 lwkt_serialize_exit(_arr[_off]);
744 ifnet_serialize_array_try(lwkt_serialize_t *_arr, int _arrcnt,
745 int _txoff, int _rxoff, enum ifnet_serialize _slz)
749 if (__predict_false(_slz == IFNET_SERIALIZE_ALL))
750 return lwkt_serialize_array_try(_arr, _arrcnt, 0);
752 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
753 return lwkt_serialize_try(_arr[_off]);
759 ifnet_serialize_array_assert(lwkt_serialize_t *_arr, int _arrcnt,
760 int _txoff, int _rxoff, enum ifnet_serialize _slz, boolean_t _serialized)
764 if (__predict_false(_slz == IFNET_SERIALIZE_ALL)) {
768 for (_i = 0; _i < _arrcnt; ++_i)
769 ASSERT_SERIALIZED(_arr[_i]);
771 for (_i = 0; _i < _arrcnt; ++_i)
772 ASSERT_NOT_SERIALIZED(_arr[_i]);
777 _off = ifnet_serialize_array_index(_arrcnt, _txoff, _rxoff, _slz);
779 ASSERT_SERIALIZED(_arr[_off]);
781 ASSERT_NOT_SERIALIZED(_arr[_off]);
784 #endif /* INVARIANTS */
786 #define REINPUT_KEEPRCVIF 0x0001 /* ether_reinput_oncpu() */
787 #define REINPUT_RUNBPF 0x0002 /* ether_reinput_oncpu() */
789 extern struct ifnethead ifnet;
790 extern struct ifnet **ifindex2ifnet;
791 extern int ifqmaxlen;
792 extern struct ifnet loif[];
798 void ether_ifattach(struct ifnet *, uint8_t *, struct lwkt_serialize *);
799 void ether_ifattach_bpf(struct ifnet *, uint8_t *, u_int, u_int,
800 struct lwkt_serialize *);
801 void ether_ifdetach(struct ifnet *);
802 void ether_demux(struct mbuf *);
803 void ether_demux_oncpu(struct ifnet *, struct mbuf *);
804 void ether_reinput_oncpu(struct ifnet *, struct mbuf *, int);
805 void ether_input_pkt(struct ifnet *, struct mbuf *, const struct pktinfo *);
806 int ether_output_frame(struct ifnet *, struct mbuf *);
807 int ether_ioctl(struct ifnet *, u_long, caddr_t);
808 u_char *kether_aton(const char *, u_char *);
809 char *kether_ntoa(const u_char *, char *);
810 boolean_t ether_tso_pullup(struct mbuf **, int *, struct ip **, int *,
811 struct tcphdr **, int *);
812 struct ifnet *ether_bridge_interface(struct ifnet *ifp);
813 uint32_t ether_crc32_le(const uint8_t *, size_t);
814 uint32_t ether_crc32_be(const uint8_t *, size_t);
816 int if_addmulti(struct ifnet *, struct sockaddr *, struct ifmultiaddr **);
817 int if_allmulti(struct ifnet *, int);
818 void if_attach(struct ifnet *, struct lwkt_serialize *);
819 int if_delmulti(struct ifnet *, struct sockaddr *);
820 void if_delallmulti(struct ifnet *ifp);
821 void if_purgeaddrs_nolink(struct ifnet *);
822 void if_detach(struct ifnet *);
823 void if_down(struct ifnet *);
824 void if_link_state_change(struct ifnet *);
825 void if_initname(struct ifnet *, const char *, int);
826 int if_getanyethermac(uint16_t *, int);
827 int if_printf(struct ifnet *, const char *, ...) __printflike(2, 3);
828 struct ifnet *if_alloc(uint8_t);
829 void if_free(struct ifnet *);
830 void if_route(struct ifnet *, int flag, int fam);
831 int if_setlladdr(struct ifnet *, const u_char *, int);
832 void if_unroute(struct ifnet *, int flag, int fam);
833 void if_up(struct ifnet *);
834 /*void ifinit(void);*/ /* declared in systm.h for main() */
835 int ifioctl(struct socket *, u_long, caddr_t, struct ucred *);
836 int ifpromisc(struct ifnet *, int);
837 struct ifnet *ifunit(const char *);
838 struct ifnet *if_withname(struct sockaddr *);
840 struct ifg_group *if_creategroup(const char *);
841 int if_addgroup(struct ifnet *, const char *);
842 int if_delgroup(struct ifnet *, const char *);
843 int if_getgroup(caddr_t, struct ifnet *);
844 int if_getgroupmembers(caddr_t);
846 struct ifaddr *ifa_ifwithaddr(struct sockaddr *);
847 struct ifaddr *ifa_ifwithdstaddr(struct sockaddr *);
848 struct ifaddr *ifa_ifwithnet(struct sockaddr *);
849 struct ifaddr *ifa_ifwithroute(int, struct sockaddr *, struct sockaddr *);
850 struct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *);
852 typedef void *if_com_alloc_t(u_char type, struct ifnet *ifp);
853 typedef void if_com_free_t(void *com, u_char type);
854 void if_register_com_alloc(u_char, if_com_alloc_t *a, if_com_free_t *);
855 void if_deregister_com_alloc(u_char);
857 void *ifa_create(int, int);
858 void ifa_destroy(struct ifaddr *);
859 void ifa_iflink(struct ifaddr *, struct ifnet *, int);
860 void ifa_ifunlink(struct ifaddr *, struct ifnet *);
862 struct ifaddr *ifaddr_byindex(unsigned short);
864 struct ifmultiaddr *ifmaof_ifpforaddr(struct sockaddr *, struct ifnet *);
865 int if_simloop(struct ifnet *ifp, struct mbuf *m, int af, int hlen);
866 void if_devstart(struct ifnet *ifp); /* COMPAT */
867 void if_devstart_sched(struct ifnet *ifp); /* COMPAT */
868 int if_ring_count2(int cnt, int cnt_max);
870 #define IF_LLSOCKADDR(ifp) \
871 ((struct sockaddr_dl *)(ifp)->if_lladdr->ifa_addr)
872 #define IF_LLADDR(ifp) LLADDR(IF_LLSOCKADDR(ifp))
875 int ifpoll_register(struct ifnet *);
876 int ifpoll_deregister(struct ifnet *);
877 #endif /* IFPOLL_ENABLE */
881 #endif /* !_NET_IF_VAR_H_ */