kernel - Replace zalloc zones with kmalloc for PCBs
[dragonfly.git] / sys / netinet / sctp_pcb.h
CommitLineData
8d60bf8a 1/* $KAME: sctp_pcb.h,v 1.19 2004/08/17 06:28:02 t-momose Exp $ */
1bd40720 2/* $DragonFly: src/sys/netinet/sctp_pcb.h,v 1.3 2006/05/20 02:42:12 dillon Exp $ */
8d60bf8a
EN
3
4/*
5 * Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc.
6 * 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
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Cisco Systems, Inc.
19 * 4. Neither the name of the project nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
1bd40720
MD
36#ifndef _NETINET_SCTP_PCB_H_
37#define _NETINET_SCTP_PCB_H_
38
39#ifndef _NETINET_IN_PCB_H_
40#include <netinet/in_pcb.h>
41#endif
42
8d60bf8a
EN
43/*
44 * We must have V6 so the size of the proto can be calculated. Otherwise
45 * we would not allocate enough for Net/Open BSD :-<
46 */
47#if defined(__FreeBSD__) && __FreeBSD_version > 500000
48#include <net/pfil.h>
49#endif
50#include <net/if.h>
51#ifdef __FreeBSD__
52#include <net/if_var.h>
53#endif
54#include <netinet/ip6.h>
55#include <netinet6/ip6_var.h>
56#include <netinet6/ip6protosw.h>
57#include <netinet6/in6_var.h>
58#if defined(__OpenBSD__)
59#include <netinet/in_pcb.h>
60#else
61#include <netinet6/in6_pcb.h>
62#endif
63
64#if defined(__OpenBSD__) || defined(__FreeBSD__)
65#ifndef in6pcb
66#define in6pcb inpcb
67#endif
68#endif
69
70#include <netinet/sctp.h>
71#include <netinet/sctp_constants.h>
72
73LIST_HEAD(sctppcbhead, sctp_inpcb);
74LIST_HEAD(sctpasochead, sctp_tcb);
75TAILQ_HEAD(sctpsocketq, sctp_socket_q_list);
8d60bf8a
EN
76LIST_HEAD(sctpvtaghead, sctp_tagblock);
77
78#include <netinet/sctp_structs.h>
79#include <netinet/sctp_uio.h>
80
81/*
82 * PCB flags
83 */
84#define SCTP_PCB_FLAGS_UDPTYPE 0x00000001
85#define SCTP_PCB_FLAGS_TCPTYPE 0x00000002
86#define SCTP_PCB_FLAGS_BOUNDALL 0x00000004
87#define SCTP_PCB_FLAGS_ACCEPTING 0x00000008
88#define SCTP_PCB_FLAGS_UNBOUND 0x00000010
89#define SCTP_PCB_FLAGS_DO_ASCONF 0x00000020
90#define SCTP_PCB_FLAGS_AUTO_ASCONF 0x00000040
91/* socket options */
92#define SCTP_PCB_FLAGS_NODELAY 0x00000100
93#define SCTP_PCB_FLAGS_AUTOCLOSE 0x00000200
94#define SCTP_PCB_FLAGS_RECVDATAIOEVNT 0x00000400
95#define SCTP_PCB_FLAGS_RECVASSOCEVNT 0x00000800
96#define SCTP_PCB_FLAGS_RECVPADDREVNT 0x00001000
97#define SCTP_PCB_FLAGS_RECVPEERERR 0x00002000
98#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT 0x00004000
99#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT 0x00008000
100#define SCTP_PCB_FLAGS_ADAPTIONEVNT 0x00010000
101#define SCTP_PCB_FLAGS_PDAPIEVNT 0x00020000
102#define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x00040000
103#define SCTP_PCB_FLAGS_NO_FRAGMENT 0x00080000
104/* TCP model support */
105#define SCTP_PCB_FLAGS_CONNECTED 0x00100000
106#define SCTP_PCB_FLAGS_IN_TCPPOOL 0x00200000
107#define SCTP_PCB_FLAGS_DONT_WAKE 0x00400000
108#define SCTP_PCB_FLAGS_WAKEOUTPUT 0x00800000
109#define SCTP_PCB_FLAGS_WAKEINPUT 0x01000000
110#define SCTP_PCB_FLAGS_BOUND_V6 0x02000000
111#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4 0x04000000
112#define SCTP_PCB_FLAGS_BLOCKING_IO 0x08000000
113#define SCTP_PCB_FLAGS_SOCKET_GONE 0x10000000
114#define SCTP_PCB_FLAGS_SOCKET_ALLGONE 0x20000000
115
116/* flags to copy to new PCB */
117#define SCTP_PCB_COPY_FLAGS 0x0707ff64
118
119#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask)
120#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask)
121
122struct sctp_laddr {
123 LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */
124 struct ifaddr *ifa;
125};
126
127struct sctp_timewait {
128 uint32_t tv_sec_at_expire; /* the seconds from boot to expire */
129 uint32_t v_tag; /* the vtag that can not be reused */
130};
131
132struct sctp_tagblock {
133 LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock;
134 struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK];
135};
136
137struct sctp_epinfo {
138 struct sctpasochead *sctp_asochash;
139 u_long hashasocmark;
140
141 struct sctppcbhead *sctp_ephash;
142 u_long hashmark;
143
144 /*
145 * The TCP model represents a substantial overhead in that we get
146 * an additional hash table to keep explicit connections in. The
147 * listening TCP endpoint will exist in the usual ephash above and
148 * accept only INIT's. It will be incapable of sending off an INIT.
149 * When a dg arrives we must look in the normal ephash. If we find
150 * a TCP endpoint that will tell us to go to the specific endpoint
151 * hash and re-hash to find the right assoc/socket. If we find a
152 * UDP model socket we then must complete the lookup. If this fails,
153 * i.e. no association can be found then we must continue to see if
154 * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket
155 * acts like a TCP model connected socket).
156 */
157 struct sctppcbhead *sctp_tcpephash;
158 u_long hashtcpmark;
159 uint32_t hashtblsize;
160
161 struct sctppcbhead listhead;
162
163 struct sctpiterators iteratorhead;
164
165 /* ep zone info */
8e062f96 166#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__)
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167#if __FreeBSD_version >= 500000
168 struct uma_zone *ipi_zone_ep;
169 struct uma_zone *ipi_zone_asoc;
170 struct uma_zone *ipi_zone_laddr;
171 struct uma_zone *ipi_zone_net;
172 struct uma_zone *ipi_zone_chunk;
173 struct uma_zone *ipi_zone_sockq;
174#else
9f42c129
MD
175 struct malloc_type ipi_zone_ep;
176 struct malloc_type ipi_zone_asoc;
177 struct malloc_type ipi_zone_laddr;
178 struct malloc_type ipi_zone_net;
179 struct malloc_type ipi_zone_chunk;
180 struct malloc_type ipi_zone_sockq;
8d60bf8a
EN
181#endif
182#endif
183#if defined(__NetBSD__) || defined(__OpenBSD__)
184 struct pool ipi_zone_ep;
185 struct pool ipi_zone_asoc;
186 struct pool ipi_zone_laddr;
187 struct pool ipi_zone_net;
188 struct pool ipi_zone_chunk;
189 struct pool ipi_zone_sockq;
190#endif
191
192#if defined(__FreeBSD__) && __FreeBSD_version >= 503000
193 struct mtx ipi_ep_mtx;
194 struct mtx it_mtx;
195#endif
196 u_int ipi_count_ep;
197 u_quad_t ipi_gencnt_ep;
198
199 /* assoc/tcb zone info */
200 u_int ipi_count_asoc;
201 u_quad_t ipi_gencnt_asoc;
202
203 /* local addrlist zone info */
204 u_int ipi_count_laddr;
205 u_quad_t ipi_gencnt_laddr;
206
207 /* remote addrlist zone info */
208 u_int ipi_count_raddr;
209 u_quad_t ipi_gencnt_raddr;
210
211 /* chunk structure list for output */
212 u_int ipi_count_chunk;
213 u_quad_t ipi_gencnt_chunk;
214
215 /* socket queue zone info */
216 u_int ipi_count_sockq;
217 u_quad_t ipi_gencnt_sockq;
218
219 struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE];
220
221#ifdef _SCTP_NEEDS_CALLOUT_
222 struct calloutlist callqueue;
223#endif /* _SCTP_NEEDS_CALLOUT_ */
224
225 uint32_t mbuf_track;
226
227 /* for port allocations */
228 uint16_t lastport;
229 uint16_t lastlow;
230 uint16_t lasthi;
231
232};
233
234extern uint32_t sctp_pegs[SCTP_NUMBER_OF_PEGS];
235/*
236 * Here we have all the relevant information for each SCTP entity created.
237 * We will need to modify this as approprate. We also need to figure out
238 * how to access /dev/random.
239 */
240struct sctp_pcb {
241 unsigned int time_of_secret_change; /* number of seconds from timeval.tv_sec */
242 uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS];
243 unsigned int size_of_a_cookie;
244
245 unsigned int sctp_timeoutticks[SCTP_NUM_TMRS];
246 unsigned int sctp_minrto;
247 unsigned int sctp_maxrto;
248 unsigned int initial_rto;
249
250 int initial_init_rto_max;
251
252 uint32_t sctp_sws_sender;
253 uint32_t sctp_sws_receiver;
254
255 /* various thresholds */
256 /* Max times I will init at a guy */
257 uint16_t max_init_times;
258
259 /* Max times I will send before we consider someone dead */
260 uint16_t max_send_times;
261
262 uint16_t def_net_failure;
263
264 /* number of streams to pre-open on a association */
265 uint16_t pre_open_stream_count;
266 uint16_t max_open_streams_intome;
267
268 /* random number generator */
269 uint32_t random_counter;
270 uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE];
271 uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE];
272
273 /*
274 * This timer is kept running per endpoint. When it fires it
275 * will change the secret key. The default is once a hour
276 */
277 struct sctp_timer signature_change;
278 int def_cookie_life;
279 /* defaults to 0 */
280 int auto_close_time;
281 uint32_t initial_sequence_debug;
282 uint32_t adaption_layer_indicator;
283 char store_at;
284 uint8_t max_burst;
285 char current_secret_number;
286 char last_secret_number;
287};
288
289#ifndef SCTP_ALIGNMENT
290#define SCTP_ALIGNMENT 32
291#endif
292
293#ifndef SCTP_ALIGNM1
294#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1)
295#endif
296
297#define sctp_lport ip_inp.inp.inp_lport
298
299struct sctp_socket_q_list {
300 struct sctp_tcb *tcb;
301 TAILQ_ENTRY(sctp_socket_q_list) next_sq;
302};
303
304struct sctp_inpcb {
305 /*
306 * put an inpcb in front of it all, kind of a waste but we need
307 * to for compatability with all the other stuff.
308 */
309 union {
310 struct inpcb inp;
311 char align[(sizeof(struct in6pcb) + SCTP_ALIGNM1) &
312 ~SCTP_ALIGNM1];
313 } ip_inp;
314 LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */
315 /* hash of all endpoints for model */
316 LIST_ENTRY(sctp_inpcb) sctp_hash;
317
318 /* count of local addresses bound, 0 if bound all */
319 int laddr_count;
320 /* list of addrs in use by the EP */
321 struct sctpladdr sctp_addr_list;
322 /* used for source address selection rotation */
323 struct sctp_laddr *next_addr_touse;
324 struct ifnet *next_ifn_touse;
325 /* back pointer to our socket */
326 struct socket *sctp_socket;
327 uint32_t sctp_flags; /* flag set */
328 struct sctp_pcb sctp_ep; /* SCTP ep data */
329 /* head of the hash of all associations */
330 struct sctpasochead *sctp_tcbhash;
331 u_long sctp_hashmark;
332 /* head of the list of all associations */
333 struct sctpasochead sctp_asoc_list;
334 /* queue of TCB's waiting to stuff data up the socket */
335 struct sctpsocketq sctp_queue_list;
336 void *sctp_tcb_at_block;
337 struct sctp_iterator *inp_starting_point_for_iterator;
338 int error_on_block;
339 uint32_t sctp_frag_point;
340 uint32_t sctp_vtag_first;
341 struct mbuf *pkt, *pkt_last, *sb_last_mpkt;
342 struct mbuf *control;
8e062f96 343#if !(defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__))
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EN
344#ifndef INP_IPV6
345#define INP_IPV6 0x1
346#endif
347#ifndef INP_IPV4
348#define INP_IPV4 0x2
349#endif
350 u_char inp_vflag;
351 u_char inp_ip_ttl;
352 u_char inp_ip_tos;
353 u_char inp_ip_resv;
354#endif
355#if defined(__FreeBSD__) && __FreeBSD_version >= 503000
356 struct mtx inp_mtx;
357 struct mtx inp_create_mtx;
358 u_int32_t refcount;
359#endif
360};
361
362struct sctp_tcb {
363 struct socket *sctp_socket; /* back pointer to socket */
364 struct sctp_inpcb *sctp_ep; /* back pointer to ep */
365 LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash table */
366 LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the TCB's */
367 LIST_ENTRY(sctp_tcb) sctp_asocs;
368 struct sctp_association asoc;
369 uint16_t rport; /* remote port in network format */
370 uint16_t resv;
371#if defined(__FreeBSD__) && __FreeBSD_version >= 503000
372 struct mtx tcb_mtx;
373#endif
374};
375
376#if defined(__FreeBSD__) && __FreeBSD_version >= 503000
377
378/* General locking concepts:
379 * The goal of our locking is to of course provide
380 * consistency and yet minimize overhead. We will
381 * attempt to use non-recursive locks which are supposed
382 * to be quite inexpensive. Now in order to do this the goal
383 * is that most functions are not aware of locking. Once we
384 * have a TCB we lock it and unlock when we are through. This
385 * means that the TCB lock is kind-of a "global" lock when
386 * working on an association. Caution must be used when
387 * asserting a TCB_LOCK since if we recurse we deadlock.
388 *
389 * Most other locks (INP and INFO) attempt to localize
390 * the locking i.e. we try to contain the lock and
391 * unlock within the function that needs to lock it. This
392 * sometimes mean we do extra locks and unlocks and loose
393 * a bit of efficency, but if the performance statements about
394 * non-recursive locks are true this should not be a problem.
395 * One issue that arises with this only lock when needed
396 * is that if an implicit association setup is done we
397 * have a problem. If at the time I lookup an association
398 * I have NULL in the tcb return, by the time I call to
399 * create the association some other processor could
400 * have created it. This is what the CREATE lock on
401 * the endpoint. Places where we will be implicitly
402 * creating the association OR just creating an association
403 * (the connect call) will assert the CREATE_INP lock. This
404 * will assure us that during all the lookup of INP and INFO
405 * if another creator is also locking/looking up we can
406 * gate the two to synchronize. So the CREATE_INP lock is
407 * also another one we must use extreme caution in locking
408 * to make sure we don't hit a re-entrancy issue.
409 *
410 * For non FreeBSD 5.x and above we provide a bunch
411 * of EMPTY lock macro's so we can blatantly put locks
412 * everywhere and they reduce to nothing on NetBSD/OpenBSD
413 * and FreeBSD 4.x
414 *
415 */
416
417
418/* When working with the global SCTP lists we lock and unlock
419 * the INP_INFO lock. So when we go to lookup an association
420 * we will want to do a SCTP_INP_INFO_RLOCK() and then when
421 * we want to add a new association to the sctppcbinfo list's
422 * we will do a SCTP_INP_INFO_WLOCK().
423 */
424
425/*
426 * FIX ME, all locks right now have a
427 * recursive check/panic to validate that I
428 * don't have any lock recursion going on.
429 */
430
431#define SCTP_INP_INFO_LOCK_INIT() \
432 mtx_init(&sctppcbinfo.ipi_ep_mtx, "sctp", "inp_info", MTX_DEF)
433
434#ifdef xyzzy
435#define SCTP_INP_INFO_RLOCK() do { \
436 if (mtx_owned(&sctppcbinfo.ipi_ep_mtx)) \
437 panic("INP INFO Recursive Lock-R"); \
438 mtx_lock(&sctppcbinfo.ipi_ep_mtx); \
439} while (0)
440
441#define SCTP_INP_INFO_WLOCK() do { \
442 if (mtx_owned(&sctppcbinfo.ipi_ep_mtx)) \
443 panic("INP INFO Recursive Lock-W"); \
444 mtx_lock(&sctppcbinfo.ipi_ep_mtx); \
445} while (0)
446
447#else
448
449void SCTP_INP_INFO_RLOCK(void);
450void SCTP_INP_INFO_WLOCK(void);
451
452#endif
453
454#define SCTP_INP_INFO_RUNLOCK() mtx_unlock(&sctppcbinfo.ipi_ep_mtx)
455#define SCTP_INP_INFO_WUNLOCK() mtx_unlock(&sctppcbinfo.ipi_ep_mtx)
456
457/* The INP locks we will use for locking an SCTP endpoint, so for
458 * example if we want to change something at the endpoint level for
459 * example random_store or cookie secrets we lock the INP level.
460 */
461#define SCTP_INP_LOCK_INIT(_inp) \
462 mtx_init(&(_inp)->inp_mtx, "sctp", "inp", MTX_DEF | MTX_DUPOK)
463
464#define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
465 mtx_init(&(_inp)->inp_create_mtx, "sctp", "inp_create", \
466 MTX_DEF | MTX_DUPOK)
467
468#define SCTP_INP_LOCK_DESTROY(_inp) mtx_destroy(&(_inp)->inp_mtx)
469#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) mtx_destroy(&(_inp)->inp_create_mtx)
470
471#ifdef xyzzy
472#define SCTP_INP_RLOCK(_inp) do { \
473 struct sctp_tcb *xx_stcb; \
474 xx_stcb = LIST_FIRST(&_inp->sctp_asoc_list); \
475 if (xx_stcb) \
476 if (mtx_owned(&(xx_stcb)->tcb_mtx)) \
477 panic("I own TCB lock?"); \
478 if (mtx_owned(&(_inp)->inp_mtx)) \
479 panic("INP Recursive Lock-R"); \
480 mtx_lock(&(_inp)->inp_mtx); \
481} while (0)
482
483#define SCTP_INP_WLOCK(_inp) do { \
484 struct sctp_tcb *xx_stcb; \
485 xx_stcb = LIST_FIRST(&_inp->sctp_asoc_list); \
486 if (xx_stcb) \
487 if (mtx_owned(&(xx_stcb)->tcb_mtx)) \
488 panic("I own TCB lock?"); \
489 if (mtx_owned(&(_inp)->inp_mtx)) \
490 panic("INP Recursive Lock-W"); \
491 mtx_lock(&(_inp)->inp_mtx); \
492} while (0)
493
494#else
495void SCTP_INP_RLOCK(struct sctp_inpcb *);
496void SCTP_INP_WLOCK(struct sctp_inpcb *);
497
498#endif
499
500
501#define SCTP_INP_INCR_REF(_inp) _inp->refcount++
502
503#define SCTP_INP_DECR_REF(_inp) do { \
504 if (_inp->refcount > 0) \
505 _inp->refcount--; \
506 else \
507 panic("bad inp refcount"); \
508}while (0)
509
510#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
511 if (mtx_owned(&(_inp)->inp_create_mtx)) \
512 panic("INP Recursive CREATE"); \
513 mtx_lock(&(_inp)->inp_create_mtx); \
514} while (0)
515
516#define SCTP_INP_RUNLOCK(_inp) mtx_unlock(&(_inp)->inp_mtx)
517#define SCTP_INP_WUNLOCK(_inp) mtx_unlock(&(_inp)->inp_mtx)
518#define SCTP_ASOC_CREATE_UNLOCK(_inp) mtx_unlock(&(_inp)->inp_create_mtx)
519
520/* For the majority of things (once we have found the association) we
521 * will lock the actual association mutex. This will protect all
522 * the assoiciation level queues and streams and such. We will
523 * need to lock the socket layer when we stuff data up into
524 * the receiving sb_mb. I.e. we will need to do an extra
525 * SOCKBUF_LOCK(&so->so_rcv) even though the association is
526 * locked.
527 */
528
529#define SCTP_TCB_LOCK_INIT(_tcb) \
530 mtx_init(&(_tcb)->tcb_mtx, "sctp", "tcb", MTX_DEF | MTX_DUPOK)
531#define SCTP_TCB_LOCK_DESTROY(_tcb) mtx_destroy(&(_tcb)->tcb_mtx)
532#define SCTP_TCB_LOCK(_tcb) do { \
533 if (!mtx_owned(&(_tcb->sctp_ep->inp_mtx))) \
534 panic("TCB locking and no INP lock"); \
535 if (mtx_owned(&(_tcb)->tcb_mtx)) \
536 panic("TCB Lock-recursive"); \
537 mtx_lock(&(_tcb)->tcb_mtx); \
538} while (0)
539#define SCTP_TCB_UNLOCK(_tcb) mtx_unlock(&(_tcb)->tcb_mtx)
540
541#define SCTP_ITERATOR_LOCK_INIT() \
542 mtx_init(&sctppcbinfo.it_mtx, "sctp", "iterator", MTX_DEF)
543#define SCTP_ITERATOR_LOCK() do { \
544 if (mtx_owned(&sctppcbinfo.it_mtx)) \
545 panic("Iterator Lock"); \
546 mtx_lock(&sctppcbinfo.it_mtx); \
547} while (0)
548
549#define SCTP_ITERATOR_UNLOCK() mtx_unlock(&sctppcbinfo.it_mtx)
550#define SCTP_ITERATOR_LOCK_DESTROY() mtx_destroy(&sctppcbinfo.it_mtx)
551#else
552
553/* Empty Lock declarations for all other
554 * platforms pre-process away to nothing.
555 */
556
557/* Lock for INFO stuff */
558#define SCTP_INP_INFO_LOCK_INIT()
559#define SCTP_INP_INFO_RLOCK()
560#define SCTP_INP_INFO_RLOCK()
561#define SCTP_INP_INFO_WLOCK()
562
563#define SCTP_INP_INFO_RUNLOCK()
564#define SCTP_INP_INFO_WUNLOCK()
565/* Lock for INP */
566#define SCTP_INP_LOCK_INIT(_inp)
567#define SCTP_INP_LOCK_DESTROY(_inp)
568#define SCTP_INP_RLOCK(_inp)
569#define SCTP_INP_RUNLOCK(_inp)
570#define SCTP_INP_WLOCK(_inp)
571#define SCTP_INP_INCR_REF(_inp)
572#define SCTP_INP_DECR_REF(_inp)
573#define SCTP_INP_WUNLOCK(_inp)
574#define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
575#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
576#define SCTP_ASOC_CREATE_LOCK(_inp)
577#define SCTP_ASOC_CREATE_UNLOCK(_inp)
578/* Lock for TCB */
579#define SCTP_TCB_LOCK_INIT(_tcb)
580#define SCTP_TCB_LOCK_DESTROY(_tcb)
581#define SCTP_TCB_LOCK(_tcb)
582#define SCTP_TCB_UNLOCK(_tcb)
583/* socket locks that are not here in other than 5.3 > FreeBSD*/
584#define SOCK_LOCK(_so)
585#define SOCK_UNLOCK(_so)
586#define SOCKBUF_LOCK(_so_buf)
587#define SOCKBUF_UNLOCK(_so_buf)
588/* iterator locks */
589#define SCTP_ITERATOR_LOCK_INIT()
590#define SCTP_ITERATOR_LOCK()
591#define SCTP_ITERATOR_UNLOCK()
592#define SCTP_ITERATOR_LOCK_DESTROY()
593#endif
594
595#if defined(_KERNEL) || (defined(__APPLE__) && defined(KERNEL))
596
597extern struct sctp_epinfo sctppcbinfo;
598extern int sctp_auto_asconf;
599
600int SCTP6_ARE_ADDR_EQUAL(struct in6_addr *a, struct in6_addr *b);
601
602void sctp_fill_pcbinfo(struct sctp_pcbinfo *);
603
604struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *);
605
606struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int);
607
8e062f96 608#if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__DragonFly__)
8d60bf8a
EN
609int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct thread *);
610#else
611int sctp_inpcb_bind(struct socket *, struct sockaddr *, struct proc *);
612#endif
613
614struct sctp_tcb *sctp_findassociation_addr(struct mbuf *, int, int,
615 struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **,
616 struct sctp_nets **);
617
618struct sctp_tcb *sctp_findassociation_addr_sa(struct sockaddr *,
619 struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int);
620
621void sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *,
622 struct sctp_tcb *);
623
624/*
625 * For this call ep_addr, the to is the destination endpoint address
626 * of the peer (relative to outbound). The from field is only used if
627 * the TCP model is enabled and helps distingush amongst the subset
628 * bound (non-boundall). The TCP model MAY change the actual ep field,
629 * this is why it is passed.
630 */
631struct sctp_tcb *sctp_findassociation_ep_addr(struct sctp_inpcb **,
632 struct sockaddr *, struct sctp_nets **, struct sockaddr *, struct sctp_tcb *);
633
634struct sctp_tcb *sctp_findassociation_ep_asocid(struct sctp_inpcb *, caddr_t);
635
636struct sctp_tcb *sctp_findassociation_ep_asconf(struct mbuf *, int, int,
637 struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **);
638
639int sctp_inpcb_alloc(struct socket *);
640
641
642int sctp_is_address_on_local_host(struct sockaddr *addr);
643
644void sctp_inpcb_free(struct sctp_inpcb *, int);
645
646struct sctp_tcb *sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *,
647 int, int *, uint32_t);
648
649void sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *);
650
651int sctp_add_local_addr_ep(struct sctp_inpcb *, struct ifaddr *);
652
653int sctp_insert_laddr(struct sctpladdr *, struct ifaddr *);
654
655void sctp_remove_laddr(struct sctp_laddr *);
656
657int sctp_del_local_addr_ep(struct sctp_inpcb *, struct ifaddr *);
658
659int sctp_del_local_addr_ep_sa(struct sctp_inpcb *, struct sockaddr *);
660
661int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, int, int);
662
663int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *);
664
665void sctp_pcb_init(void);
666
667void sctp_free_remote_addr(struct sctp_nets *);
668
669int sctp_add_local_addr_assoc(struct sctp_tcb *, struct ifaddr *);
670
671int sctp_del_local_addr_assoc(struct sctp_tcb *, struct ifaddr *);
672
673int sctp_del_local_addr_assoc_sa(struct sctp_tcb *, struct sockaddr *);
674
675int sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int,
676 int, struct sctphdr *, struct sockaddr *);
677
678int sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets *);
679
680int sctp_is_vtag_good(struct sctp_inpcb *, uint32_t, struct timeval *);
681
682/*void sctp_drain(void);*/
683
684int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *);
685
686int sctp_add_to_socket_q(struct sctp_inpcb *, struct sctp_tcb *);
687
688struct sctp_tcb *sctp_remove_from_socket_q(struct sctp_inpcb *);
689
690
691/* Null in last arg inpcb indicate run on ALL ep's. Specific
692 * inp in last arg indicates run on ONLY assoc's of the
693 * specified endpoint.
694 */
695int
696sctp_initiate_iterator(asoc_func af, uint32_t, uint32_t, void *, uint32_t,
697 end_func ef, struct sctp_inpcb *);
698
699#if defined(__APPLE__)
700void sctp_callout_alloc(struct sctp_timer *);
701void sctp_callout_free(struct callout *);
702#endif
703
704#ifdef __NetBSD__
705extern void in6_sin6_2_sin (struct sockaddr_in *,
706 struct sockaddr_in6 *sin6);
707#endif
708
709#endif /* _KERNEL */
1bd40720 710#endif /* _NETINET_SCTP_PCB_H_ */