1 /*-
2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 *
10 * b) Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the distribution.
13 *
14 * c) Neither the name of Cisco Systems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 /* $KAME: sctp_pcb.h,v 1.21 2005/07/16 01:18:47 suz Exp $ */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD: releng/8.0/sys/netinet/sctp_pcb.h 188067 2009-02-03 11:04:03Z rrs $");
35
36 #ifndef __sctp_pcb_h__
37 #define __sctp_pcb_h__
38
39 #include <netinet/sctp_os.h>
40 #include <netinet/sctp.h>
41 #include <netinet/sctp_constants.h>
42 #include <netinet/sctp_sysctl.h>
43
44 LIST_HEAD(sctppcbhead, sctp_inpcb);
45 LIST_HEAD(sctpasochead, sctp_tcb);
46 LIST_HEAD(sctpladdr, sctp_laddr);
47 LIST_HEAD(sctpvtaghead, sctp_tagblock);
48 LIST_HEAD(sctp_vrflist, sctp_vrf);
49 LIST_HEAD(sctp_ifnlist, sctp_ifn);
50 LIST_HEAD(sctp_ifalist, sctp_ifa);
51 TAILQ_HEAD(sctp_readhead, sctp_queued_to_read);
52 TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending);
53
54 #include <netinet/sctp_structs.h>
55 #include <netinet/sctp_auth.h>
56
57 #define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask)
58 #define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask)
59
60 struct sctp_vrf {
61 LIST_ENTRY(sctp_vrf) next_vrf;
62 struct sctp_ifalist *vrf_addr_hash;
63 struct sctp_ifnlist ifnlist;
64 uint32_t vrf_id;
65 uint32_t tbl_id_v4; /* default v4 table id */
66 uint32_t tbl_id_v6; /* default v6 table id */
67 uint32_t total_ifa_count;
68 u_long vrf_addr_hashmark;
69 uint32_t refcount;
70 };
71
72 struct sctp_ifn {
73 struct sctp_ifalist ifalist;
74 struct sctp_vrf *vrf;
75 LIST_ENTRY(sctp_ifn) next_ifn;
76 LIST_ENTRY(sctp_ifn) next_bucket;
77 void *ifn_p; /* never access without appropriate lock */
78 uint32_t ifn_mtu;
79 uint32_t ifn_type;
80 uint32_t ifn_index; /* shorthand way to look at ifn for reference */
81 uint32_t refcount; /* number of reference held should be >=
82 * ifa_count */
83 uint32_t ifa_count; /* IFA's we hold (in our list - ifalist) */
84 uint32_t num_v6; /* number of v6 addresses */
85 uint32_t num_v4; /* number of v4 addresses */
86 uint32_t registered_af; /* registered address family for i/f events */
87 char ifn_name[SCTP_IFNAMSIZ];
88 };
89
90 /* SCTP local IFA flags */
91 #define SCTP_ADDR_VALID 0x00000001 /* its up and active */
92 #define SCTP_BEING_DELETED 0x00000002 /* being deleted, when
93 * refcount = 0. Note that it
94 * is pulled from the ifn list
95 * and ifa_p is nulled right
96 * away but it cannot be freed
97 * until the last *net
98 * pointing to it is deleted. */
99 #define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */
100 #define SCTP_ADDR_IFA_UNUSEABLE 0x00000008
101
102 struct sctp_ifa {
103 LIST_ENTRY(sctp_ifa) next_ifa;
104 LIST_ENTRY(sctp_ifa) next_bucket;
105 struct sctp_ifn *ifn_p; /* back pointer to parent ifn */
106 void *ifa; /* pointer to ifa, needed for flag update for
107 * that we MUST lock appropriate locks. This
108 * is for V6. */
109 union sctp_sockstore address;
110 uint32_t refcount; /* number of folks refering to this */
111 uint32_t flags;
112 uint32_t localifa_flags;
113 uint32_t vrf_id; /* vrf_id of this addr (for deleting) */
114 uint8_t src_is_loop;
115 uint8_t src_is_priv;
116 uint8_t src_is_glob;
117 uint8_t resv;
118 };
119
120 struct sctp_laddr {
121 LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */
122 struct sctp_ifa *ifa;
123 uint32_t action; /* Used during asconf and adding if no-zero
124 * src-addr selection will not consider this
125 * address. */
126 struct timeval start_time; /* time when this address was created */
127 };
128
129 struct sctp_block_entry {
130 int error;
131 };
132
133 struct sctp_timewait {
134 uint32_t tv_sec_at_expire; /* the seconds from boot to expire */
135 uint32_t v_tag; /* the vtag that can not be reused */
136 uint16_t lport; /* the local port used in vtag */
137 uint16_t rport; /* the remote port used in vtag */
138 };
139
140 struct sctp_tagblock {
141 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock;
142 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK];
143 };
144
145
146 struct sctp_epinfo {
147 struct socket *udp_tun_socket;
148 struct sctpasochead *sctp_asochash;
149 u_long hashasocmark;
150
151 struct sctppcbhead *sctp_ephash;
152 u_long hashmark;
153
154 /*-
155 * The TCP model represents a substantial overhead in that we get an
156 * additional hash table to keep explicit connections in. The
157 * listening TCP endpoint will exist in the usual ephash above and
158 * accept only INIT's. It will be incapable of sending off an INIT.
159 * When a dg arrives we must look in the normal ephash. If we find a
160 * TCP endpoint that will tell us to go to the specific endpoint
161 * hash and re-hash to find the right assoc/socket. If we find a UDP
162 * model socket we then must complete the lookup. If this fails,
163 * i.e. no association can be found then we must continue to see if
164 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket
165 * acts like a TCP model connected socket).
166 */
167 struct sctppcbhead *sctp_tcpephash;
168 u_long hashtcpmark;
169 uint32_t hashtblsize;
170
171 struct sctp_vrflist *sctp_vrfhash;
172 u_long hashvrfmark;
173
174 struct sctp_ifnlist *vrf_ifn_hash;
175 u_long vrf_ifn_hashmark;
176
177 struct sctppcbhead listhead;
178 struct sctpladdr addr_wq;
179
180 struct sctpiterators iteratorhead;
181 int threads_must_exit;
182 /* ep zone info */
183 sctp_zone_t ipi_zone_ep;
184 sctp_zone_t ipi_zone_asoc;
185 sctp_zone_t ipi_zone_laddr;
186 sctp_zone_t ipi_zone_net;
187 sctp_zone_t ipi_zone_chunk;
188 sctp_zone_t ipi_zone_readq;
189 sctp_zone_t ipi_zone_strmoq;
190 sctp_zone_t ipi_zone_asconf;
191 sctp_zone_t ipi_zone_asconf_ack;
192
193 struct rwlock ipi_ep_mtx;
194 struct mtx it_mtx;
195 struct mtx ipi_iterator_wq_mtx;
196 struct rwlock ipi_addr_mtx;
197 struct mtx ipi_pktlog_mtx;
198 uint32_t ipi_count_ep;
199
200 /* assoc/tcb zone info */
201 uint32_t ipi_count_asoc;
202
203 /* local addrlist zone info */
204 uint32_t ipi_count_laddr;
205
206 /* remote addrlist zone info */
207 uint32_t ipi_count_raddr;
208
209 /* chunk structure list for output */
210 uint32_t ipi_count_chunk;
211
212 /* socket queue zone info */
213 uint32_t ipi_count_readq;
214
215 /* socket queue zone info */
216 uint32_t ipi_count_strmoq;
217
218 /* Number of vrfs */
219 uint32_t ipi_count_vrfs;
220
221 /* Number of ifns */
222 uint32_t ipi_count_ifns;
223
224 /* Number of ifas */
225 uint32_t ipi_count_ifas;
226
227 /* system wide number of free chunks hanging around */
228 uint32_t ipi_free_chunks;
229 uint32_t ipi_free_strmoq;
230
231
232 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];
233
234 /* address work queue handling */
235 #if defined(SCTP_USE_THREAD_BASED_ITERATOR)
236 uint32_t iterator_running;
237 SCTP_PROCESS_STRUCT thread_proc;
238 #endif
239 struct sctp_timer addr_wq_timer;
240
241 };
242
243
244 struct sctp_base_info {
245 /*
246 * All static structures that anchor the system must be here.
247 */
248 struct sctp_epinfo sctppcbinfo;
249 struct sctpstat sctpstat;
250 struct sctp_sysctl sctpsysctl;
251 uint8_t first_time;
252 char sctp_pcb_initialized;
253 #if defined(SCTP_PACKET_LOGGING)
254 int packet_log_writers;
255 int packet_log_end;
256 uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE];
257 #endif
258 };
259
260 /*-
261 * Here we have all the relevant information for each SCTP entity created. We
262 * will need to modify this as approprate. We also need to figure out how to
263 * access /dev/random.
264 */
265 struct sctp_pcb {
266 unsigned int time_of_secret_change; /* number of seconds from
267 * timeval.tv_sec */
268 uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS];
269 unsigned int size_of_a_cookie;
270
271 unsigned int sctp_timeoutticks[SCTP_NUM_TMRS];
272 unsigned int sctp_minrto;
273 unsigned int sctp_maxrto;
274 unsigned int initial_rto;
275 int initial_init_rto_max;
276
277 unsigned int sctp_sack_freq;
278 uint32_t sctp_sws_sender;
279 uint32_t sctp_sws_receiver;
280
281 uint32_t sctp_default_cc_module;
282 /* authentication related fields */
283 struct sctp_keyhead shared_keys;
284 sctp_auth_chklist_t *local_auth_chunks;
285 sctp_hmaclist_t *local_hmacs;
286 uint16_t default_keyid;
287
288 /* various thresholds */
289 /* Max times I will init at a guy */
290 uint16_t max_init_times;
291
292 /* Max times I will send before we consider someone dead */
293 uint16_t max_send_times;
294
295 uint16_t def_net_failure;
296
297 /* number of streams to pre-open on a association */
298 uint16_t pre_open_stream_count;
299 uint16_t max_open_streams_intome;
300
301 /* random number generator */
302 uint32_t random_counter;
303 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE];
304 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE];
305
306 /*
307 * This timer is kept running per endpoint. When it fires it will
308 * change the secret key. The default is once a hour
309 */
310 struct sctp_timer signature_change;
311
312 /* Zero copy full buffer timer */
313 struct sctp_timer zero_copy_timer;
314 /* Zero copy app to transport (sendq) read repulse timer */
315 struct sctp_timer zero_copy_sendq_timer;
316 uint32_t def_cookie_life;
317 /* defaults to 0 */
318 int auto_close_time;
319 uint32_t initial_sequence_debug;
320 uint32_t adaptation_layer_indicator;
321 uint32_t store_at;
322 uint8_t max_burst;
323 char current_secret_number;
324 char last_secret_number;
325 };
326
327 #ifndef SCTP_ALIGNMENT
328 #define SCTP_ALIGNMENT 32
329 #endif
330
331 #ifndef SCTP_ALIGNM1
332 #define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1)
333 #endif
334
335 #define sctp_lport ip_inp.inp.inp_lport
336
337 struct sctp_pcbtsn_rlog {
338 uint32_t vtag;
339 uint16_t strm;
340 uint16_t seq;
341 uint16_t sz;
342 uint16_t flgs;
343 };
344
345 #define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */
346
347
348 struct sctp_inpcb {
349 /*-
350 * put an inpcb in front of it all, kind of a waste but we need to
351 * for compatability with all the other stuff.
352 */
353 union {
354 struct inpcb inp;
355 char align[(sizeof(struct in6pcb) + SCTP_ALIGNM1) &
356 ~SCTP_ALIGNM1];
357 } ip_inp;
358
359
360 /* Socket buffer lock protects read_queue and of course sb_cc */
361 struct sctp_readhead read_queue;
362
363 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */
364 /* hash of all endpoints for model */
365 LIST_ENTRY(sctp_inpcb) sctp_hash;
366 /* count of local addresses bound, 0 if bound all */
367 int laddr_count;
368
369 /* list of addrs in use by the EP, NULL if bound-all */
370 struct sctpladdr sctp_addr_list;
371 /*
372 * used for source address selection rotation when we are subset
373 * bound
374 */
375 struct sctp_laddr *next_addr_touse;
376
377 /* back pointer to our socket */
378 struct socket *sctp_socket;
379 uint32_t sctp_flags; /* INP state flag set */
380 uint32_t sctp_features; /* Feature flags */
381 uint32_t sctp_mobility_features; /* Mobility Feature flags */
382 struct sctp_pcb sctp_ep;/* SCTP ep data */
383 /* head of the hash of all associations */
384 struct sctpasochead *sctp_tcbhash;
385 u_long sctp_hashmark;
386 /* head of the list of all associations */
387 struct sctpasochead sctp_asoc_list;
388 #ifdef SCTP_TRACK_FREED_ASOCS
389 struct sctpasochead sctp_asoc_free_list;
390 #endif
391 struct sctp_iterator *inp_starting_point_for_iterator;
392 uint32_t sctp_frag_point;
393 uint32_t partial_delivery_point;
394 uint32_t sctp_context;
395 struct sctp_nonpad_sndrcvinfo def_send;
396 /*-
397 * These three are here for the sosend_dgram
398 * (pkt, pkt_last and control).
399 * routine. However, I don't think anyone in
400 * the current FreeBSD kernel calls this. So
401 * they are candidates with sctp_sendm for
402 * de-supporting.
403 */
404 struct mbuf *pkt, *pkt_last;
405 struct mbuf *control;
406 struct mtx inp_mtx;
407 struct mtx inp_create_mtx;
408 struct mtx inp_rdata_mtx;
409 int32_t refcount;
410 uint32_t def_vrf_id;
411 uint32_t total_sends;
412 uint32_t total_recvs;
413 uint32_t last_abort_code;
414 uint32_t total_nospaces;
415 struct sctpasochead *sctp_asocidhash;
416 u_long hashasocidmark;
417 uint32_t sctp_associd_counter;
418
419 #ifdef SCTP_ASOCLOG_OF_TSNS
420 struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE];
421 uint32_t readlog_index;
422 #endif
423 };
424
425 struct sctp_tcb {
426 struct socket *sctp_socket; /* back pointer to socket */
427 struct sctp_inpcb *sctp_ep; /* back pointer to ep */
428 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash
429 * table */
430 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the
431 * TCB's */
432 LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid
433 * hash table */
434 LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */
435 struct sctp_block_entry *block_entry; /* pointer locked by socket
436 * send buffer */
437 struct sctp_association asoc;
438 /*-
439 * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the
440 * tcb_lock. Its special in this way to help avoid extra mutex calls
441 * in the reading of data.
442 */
443 uint32_t freed_by_sorcv_sincelast;
444 uint32_t total_sends;
445 uint32_t total_recvs;
446 int freed_from_where;
447 uint16_t rport; /* remote port in network format */
448 uint16_t resv;
449 struct mtx tcb_mtx;
450 struct mtx tcb_send_mtx;
451 };
452
453
454
455 #include <netinet/sctp_lock_bsd.h>
456
457
458 /* TODO where to put non-_KERNEL things for __Userspace__? */
459 #if defined(_KERNEL) || defined(__Userspace__)
460
461 /* Attention Julian, this is the extern that
462 * goes with the base info. sctp_pcb.c has
463 * the real definition.
464 */
465 extern struct sctp_base_info system_base_info;
466
467 #ifdef INET6
468 int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b);
469
470 #endif
471
472 void sctp_fill_pcbinfo(struct sctp_pcbinfo *);
473
474 struct sctp_ifn *
475 sctp_find_ifn(void *ifn, uint32_t ifn_index);
476
477 struct sctp_vrf *sctp_allocate_vrf(int vrfid);
478 struct sctp_vrf *sctp_find_vrf(uint32_t vrfid);
479 void sctp_free_vrf(struct sctp_vrf *vrf);
480
481 /*-
482 * Change address state, can be used if
483 * O/S supports telling transports about
484 * changes to IFA/IFN's (link layer triggers).
485 * If a ifn goes down, we will do src-addr-selection
486 * and NOT use that, as a source address. This does
487 * not stop the routing system from routing out
488 * that interface, but we won't put it as a source.
489 */
490 void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
491 void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index);
492
493 struct sctp_ifa *
494 sctp_add_addr_to_vrf(uint32_t vrfid,
495 void *ifn, uint32_t ifn_index, uint32_t ifn_type,
496 const char *if_name,
497 void *ifa, struct sockaddr *addr, uint32_t ifa_flags,
498 int dynamic_add);
499
500 void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu);
501
502 void sctp_free_ifn(struct sctp_ifn *sctp_ifnp);
503 void sctp_free_ifa(struct sctp_ifa *sctp_ifap);
504
505
506 void
507 sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr,
508 uint32_t ifn_index, const char *if_name);
509
510
511
512 struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *);
513
514 struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t);
515
516 int
517 sctp_inpcb_bind(struct socket *, struct sockaddr *,
518 struct sctp_ifa *, struct thread *);
519
520 struct sctp_tcb *
521 sctp_findassociation_addr(struct mbuf *, int, int,
522 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **,
523 struct sctp_nets **, uint32_t vrf_id);
524
525 struct sctp_tcb *
526 sctp_findassociation_addr_sa(struct sockaddr *,
527 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t);
528
529 void
530 sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *,
531 struct sctp_tcb *);
532
533 /*-
534 * For this call ep_addr, the to is the destination endpoint address of the
535 * peer (relative to outbound). The from field is only used if the TCP model
536 * is enabled and helps distingush amongst the subset bound (non-boundall).
537 * The TCP model MAY change the actual ep field, this is why it is passed.
538 */
539 struct sctp_tcb *
540 sctp_findassociation_ep_addr(struct sctp_inpcb **,
541 struct sockaddr *, struct sctp_nets **, struct sockaddr *,
542 struct sctp_tcb *);
543
544 struct sctp_tcb *
545 sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock);
546
547 struct sctp_tcb *
548 sctp_findassociation_ep_asocid(struct sctp_inpcb *,
549 sctp_assoc_t, int);
550
551 struct sctp_tcb *
552 sctp_findassociation_ep_asconf(struct mbuf *, int, int,
553 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id);
554
555 int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id);
556
557 int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id);
558
559 void sctp_inpcb_free(struct sctp_inpcb *, int, int);
560
561 struct sctp_tcb *
562 sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
563 int, int *, uint32_t, uint32_t, struct thread *);
564
565 int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int);
566
567
568 void sctp_delete_from_timewait(uint32_t, uint16_t, uint16_t);
569
570 int sctp_is_in_timewait(uint32_t tag, uint16_t lport, uint16_t rport);
571
572 void
573 sctp_add_vtag_to_timewait(uint32_t tag, uint32_t time, uint16_t lport, uint16_t rport);
574
575 void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t);
576
577 int sctp_insert_laddr(struct sctpladdr *, struct sctp_ifa *, uint32_t);
578
579 void sctp_remove_laddr(struct sctp_laddr *);
580
581 void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *);
582
583 int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, int, int);
584
585 void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *);
586
587 int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *);
588
589 void sctp_pcb_init(void);
590
591 void sctp_pcb_finish(void);
592
593 void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
594 void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
595
596 int
597 sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int,
598 int, struct sctphdr *, struct sockaddr *);
599
600 int
601 sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *,
602 struct sctp_nets *);
603
604 int sctp_is_vtag_good(struct sctp_inpcb *, uint32_t, uint16_t lport, uint16_t rport, struct timeval *, int);
605
606 /* void sctp_drain(void); */
607
608 int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *);
609
610 int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp);
611
612 /*-
613 * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg
614 * indicates run on ONLY assoc's of the specified endpoint.
615 */
616 int
617 sctp_initiate_iterator(inp_func inpf,
618 asoc_func af,
619 inp_func inpe,
620 uint32_t, uint32_t,
621 uint32_t, void *,
622 uint32_t,
623 end_func ef,
624 struct sctp_inpcb *,
625 uint8_t co_off);
626
627 #endif /* _KERNEL */
628 #endif /* !__sctp_pcb_h__ */
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