1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 *
14 * b) Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the distribution.
17 *
18 * c) Neither the name of Cisco Systems, Inc. nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef _NETINET_SCTP_PCB_H_
36#define _NETINET_SCTP_PCB_H_
37
38#include <netinet/sctp_os.h>
39#include <netinet/sctp.h>
40#include <netinet/sctp_constants.h>
41#include <netinet/sctp_sysctl.h>
42
43LIST_HEAD(sctppcbhead, sctp_inpcb);
44LIST_HEAD(sctpasochead, sctp_tcb);
45LIST_HEAD(sctpladdr, sctp_laddr);
46LIST_HEAD(sctpvtaghead, sctp_tagblock);
47LIST_HEAD(sctp_vrflist, sctp_vrf);
48LIST_HEAD(sctp_ifnlist, sctp_ifn);
49LIST_HEAD(sctp_ifalist, sctp_ifa);
50TAILQ_HEAD(sctp_readhead, sctp_queued_to_read);
51TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending);
52
53#include <netinet/sctp_structs.h>
54#include <netinet/sctp_auth.h>
55
56#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask)
57#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask)
58
59struct sctp_vrf {
60 LIST_ENTRY(sctp_vrf) next_vrf;
61 struct sctp_ifalist *vrf_addr_hash;
62 struct sctp_ifnlist ifnlist;
63 uint32_t vrf_id;
64 uint32_t tbl_id_v4; /* default v4 table id */
65 uint32_t tbl_id_v6; /* default v6 table id */
66 uint32_t total_ifa_count;
67 u_long vrf_addr_hashmark;
68 uint32_t refcount;
69};
70
71struct sctp_ifn {
72 struct sctp_ifalist ifalist;
73 struct sctp_vrf *vrf;
74 LIST_ENTRY(sctp_ifn) next_ifn;
75 LIST_ENTRY(sctp_ifn) next_bucket;
76 void *ifn_p; /* never access without appropriate lock */
77 uint32_t ifn_mtu;
78 uint32_t ifn_type;
79 uint32_t ifn_index; /* shorthand way to look at ifn for reference */
80 uint32_t refcount; /* number of reference held should be >=
81 * ifa_count */
82 uint32_t ifa_count; /* IFA's we hold (in our list - ifalist) */
83 uint32_t num_v6; /* number of v6 addresses */
84 uint32_t num_v4; /* number of v4 addresses */
85 uint32_t registered_af; /* registered address family for i/f events */
86 char ifn_name[SCTP_IFNAMSIZ];
87};
88
89/* SCTP local IFA flags */
90#define SCTP_ADDR_VALID 0x00000001 /* its up and active */
91#define SCTP_BEING_DELETED 0x00000002 /* being deleted, when
92 * refcount = 0. Note that it
93 * is pulled from the ifn list
94 * and ifa_p is nulled right
95 * away but it cannot be freed
96 * until the last *net
97 * pointing to it is deleted. */
98#define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */
99#define SCTP_ADDR_IFA_UNUSEABLE 0x00000008
100
101struct sctp_ifa {
102 LIST_ENTRY(sctp_ifa) next_ifa;
103 LIST_ENTRY(sctp_ifa) next_bucket;
104 struct sctp_ifn *ifn_p; /* back pointer to parent ifn */
105 void *ifa; /* pointer to ifa, needed for flag update for
106 * that we MUST lock appropriate locks. This
107 * is for V6. */
108 union sctp_sockstore address;
109 uint32_t refcount; /* number of folks referring to this */
110 uint32_t flags;
111 uint32_t localifa_flags;
112 uint32_t vrf_id; /* vrf_id of this addr (for deleting) */
113 uint8_t src_is_loop;
114 uint8_t src_is_priv;
115 uint8_t src_is_glob;
116 uint8_t resv;
117};
118
119struct sctp_laddr {
120 LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */
121 struct sctp_ifa *ifa;
122 uint32_t action; /* Used during asconf and adding if no-zero
123 * src-addr selection will not consider this
124 * address. */
125 struct timeval start_time; /* time when this address was created */
126};
127
128struct sctp_block_entry {
129 int error;
130};
131
132struct sctp_timewait {
133 time_t tv_sec_at_expire; /* the seconds from boot to expire */
134 uint32_t v_tag; /* the vtag that can not be reused */
135 uint16_t lport; /* the local port used in vtag */
136 uint16_t rport; /* the remote port used in vtag */
137};
138
139struct sctp_tagblock {
140 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock;
141 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK];
142};
143
144struct sctp_epinfo {
145#ifdef INET
146 struct socket *udp4_tun_socket;
147#endif
148#ifdef INET6
149 struct socket *udp6_tun_socket;
150#endif
151 struct sctpasochead *sctp_asochash;
152 u_long hashasocmark;
153
154 struct sctppcbhead *sctp_ephash;
155 u_long hashmark;
156
157 /*-
158 * The TCP model represents a substantial overhead in that we get an
159 * additional hash table to keep explicit connections in. The
160 * listening TCP endpoint will exist in the usual ephash above and
161 * accept only INIT's. It will be incapable of sending off an INIT.
162 * When a dg arrives we must look in the normal ephash. If we find a
163 * TCP endpoint that will tell us to go to the specific endpoint
164 * hash and re-hash to find the right assoc/socket. If we find a UDP
165 * model socket we then must complete the lookup. If this fails,
166 * i.e. no association can be found then we must continue to see if
167 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket
168 * acts like a TCP model connected socket).
169 */
170 struct sctppcbhead *sctp_tcpephash;
171 u_long hashtcpmark;
172 uint32_t hashtblsize;
173
174 struct sctp_vrflist *sctp_vrfhash;
175 u_long hashvrfmark;
176
177 struct sctp_ifnlist *vrf_ifn_hash;
178 u_long vrf_ifn_hashmark;
179
180 struct sctppcbhead listhead;
181 struct sctpladdr addr_wq;
182
183 /* ep zone info */
184 sctp_zone_t ipi_zone_ep;
185 sctp_zone_t ipi_zone_asoc;
186 sctp_zone_t ipi_zone_laddr;
187 sctp_zone_t ipi_zone_net;
188 sctp_zone_t ipi_zone_chunk;
189 sctp_zone_t ipi_zone_readq;
190 sctp_zone_t ipi_zone_strmoq;
191 sctp_zone_t ipi_zone_asconf;
192 sctp_zone_t ipi_zone_asconf_ack;
193
194 struct rwlock ipi_ep_mtx;
195 struct mtx ipi_iterator_wq_mtx;
196 struct rwlock ipi_addr_mtx;
197 struct mtx ipi_pktlog_mtx;
198 struct mtx wq_addr_mtx;
199 uint32_t ipi_count_ep;
200
201 /* assoc/tcb zone info */
202 uint32_t ipi_count_asoc;
203
204 /* local addrlist zone info */
205 uint32_t ipi_count_laddr;
206
207 /* remote addrlist zone info */
208 uint32_t ipi_count_raddr;
209
210 /* chunk structure list for output */
211 uint32_t ipi_count_chunk;
212
213 /* socket queue zone info */
214 uint32_t ipi_count_readq;
215
216 /* socket queue zone info */
217 uint32_t ipi_count_strmoq;
218
219 /* Number of vrfs */
220 uint32_t ipi_count_vrfs;
221
222 /* Number of ifns */
223 uint32_t ipi_count_ifns;
224
225 /* Number of ifas */
226 uint32_t ipi_count_ifas;
227
228 /* system wide number of free chunks hanging around */
229 uint32_t ipi_free_chunks;
230 uint32_t ipi_free_strmoq;
231
232 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];
233
234 /* address work queue handling */
235 struct sctp_timer addr_wq_timer;
236
237};
238
239struct sctp_base_info {
240 /*
241 * All static structures that anchor the system must be here.
242 */
243 struct sctp_epinfo sctppcbinfo;
244#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
245 struct sctpstat *sctpstat;
246#else
247 struct sctpstat sctpstat;
248#endif
249 struct sctp_sysctl sctpsysctl;
250 uint8_t first_time;
251 char sctp_pcb_initialized;
252#if defined(SCTP_PACKET_LOGGING)
253 int packet_log_writers;
254 int packet_log_end;
255 uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE];
256#endif
257 eventhandler_tag eh_tag;
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 */
265struct sctp_pcb {
266 time_t 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 uint32_t sctp_timeoutticks[SCTP_NUM_TMRS];
272 uint32_t sctp_minrto;
273 uint32_t sctp_maxrto;
274 uint32_t initial_rto;
275 uint32_t 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 uint32_t sctp_default_ss_module;
283 /* authentication related fields */
284 struct sctp_keyhead shared_keys;
285 sctp_auth_chklist_t *local_auth_chunks;
286 sctp_hmaclist_t *local_hmacs;
287 uint16_t default_keyid;
288 uint32_t default_mtu;
289
290 /* various thresholds */
291 /* Max times I will init at a guy */
292 uint16_t max_init_times;
293
294 /* Max times I will send before we consider someone dead */
295 uint16_t max_send_times;
296
297 uint16_t def_net_failure;
298
299 uint16_t def_net_pf_threshold;
300
301 /* number of streams to pre-open on a association */
302 uint16_t pre_open_stream_count;
303 uint16_t max_open_streams_intome;
304
305 /* random number generator */
306 uint32_t random_counter;
307 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE];
308 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE];
309
310 /*
311 * This timer is kept running per endpoint. When it fires it will
312 * change the secret key. The default is once a hour
313 */
314 struct sctp_timer signature_change;
315
316 uint32_t def_cookie_life;
317 /* defaults to 0 */
318 uint32_t auto_close_time;
319 uint32_t initial_sequence_debug;
320 uint32_t adaptation_layer_indicator;
321 uint8_t adaptation_layer_indicator_provided;
322 uint32_t store_at;
323 uint32_t max_burst;
324 uint32_t fr_max_burst;
325#ifdef INET6
326 uint32_t default_flowlabel;
327#endif
328 uint8_t default_dscp;
329 char current_secret_number;
330 char last_secret_number;
331 uint16_t port; /* remote UDP encapsulation port */
332};
333
334#ifndef SCTP_ALIGNMENT
335#define SCTP_ALIGNMENT 32
336#endif
337
338#ifndef SCTP_ALIGNM1
339#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1)
340#endif
341
342#define sctp_lport ip_inp.inp.inp_lport
343
344struct sctp_pcbtsn_rlog {
345 uint32_t vtag;
346 uint16_t strm;
347 uint16_t seq;
348 uint16_t sz;
349 uint16_t flgs;
350};
351#define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */
352
353struct sctp_inpcb {
354 /*-
355 * put an inpcb in front of it all, kind of a waste but we need to
356 * for compatibility with all the other stuff.
357 */
358 union {
359 struct inpcb inp;
360 char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) &
361 ~SCTP_ALIGNM1];
362 } ip_inp;
363
364 /* Socket buffer lock protects read_queue and of course sb_cc */
365 struct sctp_readhead read_queue;
366
367 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */
368 /* hash of all endpoints for model */
369 LIST_ENTRY(sctp_inpcb) sctp_hash;
370 /* count of local addresses bound, 0 if bound all */
371 int laddr_count;
372
373 /* list of addrs in use by the EP, NULL if bound-all */
374 struct sctpladdr sctp_addr_list;
375 /*
376 * used for source address selection rotation when we are subset
377 * bound
378 */
379 struct sctp_laddr *next_addr_touse;
380
381 /* back pointer to our socket */
382 struct socket *sctp_socket;
383 uint64_t sctp_features; /* Feature flags */
384 uint32_t sctp_flags; /* INP state flag set */
385 uint32_t sctp_mobility_features; /* Mobility Feature flags */
386 struct sctp_pcb sctp_ep; /* SCTP ep data */
387 /* head of the hash of all associations */
388 struct sctpasochead *sctp_tcbhash;
389 u_long sctp_hashmark;
390 /* head of the list of all associations */
391 struct sctpasochead sctp_asoc_list;
392#ifdef SCTP_TRACK_FREED_ASOCS
393 struct sctpasochead sctp_asoc_free_list;
394#endif
395 uint32_t sctp_frag_point;
396 uint32_t partial_delivery_point;
397 uint32_t sctp_context;
398 uint32_t max_cwnd;
399 uint8_t local_strreset_support;
400 uint32_t sctp_cmt_on_off;
401 uint8_t ecn_supported;
402 uint8_t prsctp_supported;
403 uint8_t auth_supported;
404 uint8_t idata_supported;
405 uint8_t asconf_supported;
406 uint8_t reconfig_supported;
407 uint8_t nrsack_supported;
408 uint8_t pktdrop_supported;
409 uint8_t rcv_edmid;
410 struct sctp_nonpad_sndrcvinfo def_send;
411 /*-
412 * These three are here for the sosend_dgram
413 * (pkt, pkt_last and control).
414 * routine. However, I don't think anyone in
415 * the current FreeBSD kernel calls this. So
416 * they are candidates with sctp_sendm for
417 * de-supporting.
418 */
419 struct mbuf *pkt, *pkt_last;
420 struct mbuf *control;
421 struct mtx inp_mtx;
422 struct mtx inp_create_mtx;
423 struct mtx inp_rdata_mtx;
424 int32_t refcount;
425 uint32_t def_vrf_id;
426 uint16_t fibnum;
427 uint32_t total_sends;
428 uint32_t total_recvs;
429 uint32_t last_abort_code;
430 uint32_t total_nospaces;
431 struct sctpasochead *sctp_asocidhash;
432 u_long hashasocidmark;
433 uint32_t sctp_associd_counter;
434
435#ifdef SCTP_ASOCLOG_OF_TSNS
436 struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE];
437 uint32_t readlog_index;
438#endif
439};
440
441struct sctp_tcb {
442 struct socket *sctp_socket; /* back pointer to socket */
443 struct sctp_inpcb *sctp_ep; /* back pointer to ep */
444 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash
445 * table */
446 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the
447 * TCB's */
448 LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid
449 * hash table */
450 LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */
451 struct sctp_block_entry *block_entry; /* pointer locked by socket
452 * send buffer */
453 struct sctp_association asoc;
454 /*-
455 * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the
456 * tcb_lock. Its special in this way to help avoid extra mutex calls
457 * in the reading of data.
458 */
459 uint32_t freed_by_sorcv_sincelast;
460 uint32_t total_sends;
461 uint32_t total_recvs;
462 int freed_from_where;
463 uint16_t rport; /* remote port in network format */
464 uint16_t resv;
465 struct mtx tcb_mtx;
466};
467
468#include <netinet/sctp_lock_bsd.h>
469
470#if defined(_KERNEL) || defined(__Userspace__)
471
472/* Attention Julian, this is the extern that
473 * goes with the base info. sctp_pcb.c has
474 * the real definition.
475 */
476VNET_DECLARE(struct sctp_base_info, system_base_info);
477
478#ifdef INET6
479int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b);
480#endif
481
482void sctp_fill_pcbinfo(struct sctp_pcbinfo *);
483
484struct sctp_ifn *sctp_find_ifn(void *ifn, uint32_t ifn_index);
485
486struct sctp_vrf *sctp_allocate_vrf(int vrfid);
487struct sctp_vrf *sctp_find_vrf(uint32_t vrfid);
488void sctp_free_vrf(struct sctp_vrf *vrf);
489
490struct sctp_ifa *
491sctp_add_addr_to_vrf(uint32_t vrfid,
492 void *ifn, uint32_t ifn_index, uint32_t ifn_type,
493 const char *if_name,
494 void *ifa, struct sockaddr *addr, uint32_t ifa_flags,
495 int dynamic_add);
496
497void sctp_free_ifa(struct sctp_ifa *sctp_ifap);
498
499void
500sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr,
501 void *ifn, uint32_t ifn_index);
502
503struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *);
504
505struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t);
506
507int
508sctp_inpcb_bind(struct socket *, struct sockaddr *,
509 struct sctp_ifa *, struct thread *);
510int
511sctp_inpcb_bind_locked(struct sctp_inpcb *, struct sockaddr *,
512 struct sctp_ifa *, struct thread *);
513
514struct sctp_tcb *
515sctp_findassociation_addr(struct mbuf *, int,
516 struct sockaddr *, struct sockaddr *,
517 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **,
518 struct sctp_nets **, uint32_t vrf_id);
519
520struct sctp_tcb *
521sctp_findassociation_addr_sa(struct sockaddr *,
522 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t);
523
524void
525sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *,
526 struct sctp_tcb *);
527
528/*-
529 * For this call ep_addr, the to is the destination endpoint address of the
530 * peer (relative to outbound). The from field is only used if the TCP model
531 * is enabled and helps distingush amongst the subset bound (non-boundall).
532 * The TCP model MAY change the actual ep field, this is why it is passed.
533 */
534struct sctp_tcb *
535sctp_findassociation_ep_addr(struct sctp_inpcb **,
536 struct sockaddr *, struct sctp_nets **, struct sockaddr *,
537 struct sctp_tcb *);
538
539struct sctp_tcb *sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock);
540
541struct sctp_tcb *
542sctp_findassociation_ep_asocid(struct sctp_inpcb *,
543 sctp_assoc_t, int);
544
545struct sctp_tcb *
546sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *,
547 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id);
548
549int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id);
550
551int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id);
552
553void sctp_inpcb_free(struct sctp_inpcb *, int, int);
554
555#define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0
556#define SCTP_INITIALIZE_AUTH_PARAMS 1
557
558struct sctp_tcb *
559sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
560 int *, uint32_t, uint32_t, uint32_t, uint16_t, uint16_t,
561 struct thread *, int);
562struct sctp_tcb *
563sctp_aloc_assoc_connected(struct sctp_inpcb *, struct sockaddr *,
564 int *, uint32_t, uint32_t, uint32_t, uint16_t, uint16_t,
565 struct thread *, int);
566
567int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int);
568
569void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t);
570
571void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *);
572
573int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int);
574
575void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *);
576
577int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *);
578
579void sctp_pcb_init(void);
580
581void sctp_pcb_finish(void);
582
583void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
584void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *);
585
586int
587sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int,
588 struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t);
589
590int
591sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *,
592 struct sctp_nets *);
593
594bool
595 sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *);
596
597int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *);
598
599int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp);
600
601void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh);
602
603void
604 sctp_pcb_add_flags(struct sctp_inpcb *, uint32_t);
605
606/*-
607 * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg
608 * indicates run on ONLY assoc's of the specified endpoint.
609 */
610int
611sctp_initiate_iterator(inp_func inpf,
612 asoc_func af,
613 inp_func inpe,
614 uint32_t, uint32_t,
615 uint32_t, void *,
616 uint32_t,
617 end_func ef,
618 struct sctp_inpcb *,
619 uint8_t co_off);
620#if defined(SCTP_MCORE_INPUT) && defined(SMP)
621void
622 sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use);
623
624#endif
625
626#endif /* _KERNEL */
627#endif /* !__sctp_pcb_h__ */