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1 /*-
2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *
9  * a) Redistributions of source code must retain the above copyright notice,
10  *    this list of conditions and the following disclaimer.
11  *
12  * b) Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in
14  *    the documentation and/or other materials provided with the distribution.
15  *
16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
17  *    contributors may be used to endorse or promote products derived
18  *    from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifdef __FreeBSD__
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: head/sys/netinet/sctp_var.h 269699 2014-08-08 01:57:15Z kevlo $");
36 #endif
37 
38 #ifndef _NETINET_SCTP_VAR_H_
39 #define _NETINET_SCTP_VAR_H_
40 
41 #include <netinet/sctp_uio.h>
42 
43 #if defined(_KERNEL) || defined(__Userspace__)
44 
45 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
46 extern struct pr_usrreqs sctp_usrreqs;
47 #endif
48 
49 
50 #define sctp_feature_on(inp, feature)  (inp->sctp_features |= feature)
51 #define sctp_feature_off(inp, feature) (inp->sctp_features &= ~feature)
52 #define sctp_is_feature_on(inp, feature) ((inp->sctp_features & feature) == feature)
53 #define sctp_is_feature_off(inp, feature) ((inp->sctp_features & feature) == 0)
54 
55 #define sctp_stcb_feature_on(inp, stcb, feature) {\
56 	if (stcb) { \
57 		stcb->asoc.sctp_features |= feature; \
58 	} else if (inp) { \
59 		inp->sctp_features |= feature; \
60 	} \
61 }
62 #define sctp_stcb_feature_off(inp, stcb, feature) {\
63 	if (stcb) { \
64 		stcb->asoc.sctp_features &= ~feature; \
65 	} else if (inp) { \
66 		inp->sctp_features &= ~feature; \
67 	} \
68 }
69 #define sctp_stcb_is_feature_on(inp, stcb, feature) \
70 	(((stcb != NULL) && \
71 	  ((stcb->asoc.sctp_features & feature) == feature)) || \
72 	 ((stcb == NULL) && (inp != NULL) && \
73 	  ((inp->sctp_features & feature) == feature)))
74 #define sctp_stcb_is_feature_off(inp, stcb, feature) \
75 	(((stcb != NULL) && \
76 	  ((stcb->asoc.sctp_features & feature) == 0)) || \
77 	 ((stcb == NULL) && (inp != NULL) && \
78 	  ((inp->sctp_features & feature) == 0)) || \
79 	 ((stcb == NULL) && (inp == NULL)))
80 
81 /* managing mobility_feature in inpcb (by micchie) */
82 #define sctp_mobility_feature_on(inp, feature)  (inp->sctp_mobility_features |= feature)
83 #define sctp_mobility_feature_off(inp, feature) (inp->sctp_mobility_features &= ~feature)
84 #define sctp_is_mobility_feature_on(inp, feature) (inp->sctp_mobility_features & feature)
85 #define sctp_is_mobility_feature_off(inp, feature) ((inp->sctp_mobility_features & feature) == 0)
86 
87 #define sctp_maxspace(sb) (max((sb)->sb_hiwat,SCTP_MINIMAL_RWND))
88 
89 #define	sctp_sbspace(asoc, sb) ((long) ((sctp_maxspace(sb) > (asoc)->sb_cc) ? (sctp_maxspace(sb) - (asoc)->sb_cc) : 0))
90 
91 #define	sctp_sbspace_failedmsgs(sb) ((long) ((sctp_maxspace(sb) > (sb)->sb_cc) ? (sctp_maxspace(sb) - (sb)->sb_cc) : 0))
92 
93 #define sctp_sbspace_sub(a,b) ((a > b) ? (a - b) : 0)
94 
95 /*
96  * I tried to cache the readq entries at one point. But the reality
97  * is that it did not add any performance since this meant we had to
98  * lock the STCB on read. And at that point once you have to do an
99  * extra lock, it really does not matter if the lock is in the ZONE
100  * stuff or in our code. Note that this same problem would occur with
101  * an mbuf cache as well so it is not really worth doing, at least
102  * right now :-D
103  */
104 
105 #define sctp_free_a_readq(_stcb, _readq) { \
106 	SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_readq), (_readq)); \
107 	SCTP_DECR_READQ_COUNT(); \
108 }
109 
110 #define sctp_alloc_a_readq(_stcb, _readq) { \
111 	(_readq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_readq), struct sctp_queued_to_read); \
112 	if ((_readq)) { \
113 	     SCTP_INCR_READQ_COUNT(); \
114 	} \
115 }
116 
117 #define sctp_free_a_strmoq(_stcb, _strmoq, _so_locked) { \
118 	if ((_strmoq)->holds_key_ref) { \
119 		sctp_auth_key_release(stcb, sp->auth_keyid, _so_locked); \
120 		(_strmoq)->holds_key_ref = 0; \
121 	} \
122 	SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_strmoq), (_strmoq)); \
123 	SCTP_DECR_STRMOQ_COUNT(); \
124 }
125 
126 #define sctp_alloc_a_strmoq(_stcb, _strmoq) { \
127 	(_strmoq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_strmoq), struct sctp_stream_queue_pending); \
128 	if ((_strmoq)) { \
129 		memset(_strmoq, 0, sizeof(struct sctp_stream_queue_pending)); \
130 		SCTP_INCR_STRMOQ_COUNT(); \
131 		(_strmoq)->holds_key_ref = 0; \
132 	} \
133 }
134 
135 #define sctp_free_a_chunk(_stcb, _chk, _so_locked) { \
136 	if ((_chk)->holds_key_ref) {\
137 		sctp_auth_key_release((_stcb), (_chk)->auth_keyid, _so_locked); \
138 		(_chk)->holds_key_ref = 0; \
139 	} \
140 	if (_stcb) { \
141 		SCTP_TCB_LOCK_ASSERT((_stcb)); \
142 		if ((_chk)->whoTo) { \
143 			sctp_free_remote_addr((_chk)->whoTo); \
144 			(_chk)->whoTo = NULL; \
145 		} \
146 		if (((_stcb)->asoc.free_chunk_cnt > SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit)) || \
147 		    (SCTP_BASE_INFO(ipi_free_chunks) > SCTP_BASE_SYSCTL(sctp_system_free_resc_limit))) { \
148 			SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \
149 			SCTP_DECR_CHK_COUNT(); \
150 		} else { \
151 			TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
152 			(_stcb)->asoc.free_chunk_cnt++; \
153 			atomic_add_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \
154 		} \
155 	} else { \
156 		SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \
157 		SCTP_DECR_CHK_COUNT(); \
158 	} \
159 }
160 
161 #define sctp_alloc_a_chunk(_stcb, _chk) { \
162 	if (TAILQ_EMPTY(&(_stcb)->asoc.free_chunks)) { \
163 		(_chk) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_chunk), struct sctp_tmit_chunk); \
164 		if ((_chk)) { \
165 			SCTP_INCR_CHK_COUNT(); \
166 			(_chk)->whoTo = NULL; \
167 			(_chk)->holds_key_ref = 0; \
168 		} \
169 	} else { \
170 		(_chk) = TAILQ_FIRST(&(_stcb)->asoc.free_chunks); \
171 		TAILQ_REMOVE(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \
172 		atomic_subtract_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \
173 		(_chk)->holds_key_ref = 0; \
174 		SCTP_STAT_INCR(sctps_cached_chk); \
175 		(_stcb)->asoc.free_chunk_cnt--; \
176 	} \
177 }
178 
179 #if defined(__FreeBSD__) && __FreeBSD_version > 500000
180 
181 #define sctp_free_remote_addr(__net) { \
182 	if ((__net)) {  \
183 		if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \
184 			(void)SCTP_OS_TIMER_STOP(&(__net)->rxt_timer.timer); \
185 			(void)SCTP_OS_TIMER_STOP(&(__net)->pmtu_timer.timer); \
186 			if ((__net)->ro.ro_rt) { \
187 				RTFREE((__net)->ro.ro_rt); \
188 				(__net)->ro.ro_rt = NULL; \
189 			} \
190 			if ((__net)->src_addr_selected) { \
191 				sctp_free_ifa((__net)->ro._s_addr); \
192 				(__net)->ro._s_addr = NULL; \
193 			} \
194 			(__net)->src_addr_selected = 0; \
195 			(__net)->dest_state &= ~SCTP_ADDR_REACHABLE; \
196 			SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \
197 			SCTP_DECR_RADDR_COUNT(); \
198 		} \
199 	} \
200 }
201 
202 #define sctp_sbfree(ctl, stcb, sb, m) { \
203 	SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
204 	SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \
205 	if (((ctl)->do_not_ref_stcb == 0) && stcb) {\
206 		SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
207 		SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
208 	} \
209 	if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
210 	    SCTP_BUF_TYPE(m) != MT_OOBDATA) \
211 		atomic_subtract_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
212 }
213 
214 #define sctp_sballoc(stcb, sb, m) { \
215 	atomic_add_int(&(sb)->sb_cc,SCTP_BUF_LEN((m))); \
216 	atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
217 	if (stcb) { \
218 		atomic_add_int(&(stcb)->asoc.sb_cc,SCTP_BUF_LEN((m))); \
219 		atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
220 	} \
221 	if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \
222 	    SCTP_BUF_TYPE(m) != MT_OOBDATA) \
223 		atomic_add_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \
224 }
225 
226 #else				/* FreeBSD Version <= 500000 or non-FreeBSD */
227 
228 #define sctp_free_remote_addr(__net) { \
229 	if ((__net)) { \
230 		if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \
231 			(void)SCTP_OS_TIMER_STOP(&(__net)->rxt_timer.timer); \
232 			(void)SCTP_OS_TIMER_STOP(&(__net)->pmtu_timer.timer); \
233 			(void)SCTP_OS_TIMER_STOP(&(__net)->hb_timer.timer); \
234 			if ((__net)->ro.ro_rt) { \
235 				RTFREE((__net)->ro.ro_rt); \
236 				(__net)->ro.ro_rt = NULL; \
237 			} \
238 			if ((__net)->src_addr_selected) { \
239 				sctp_free_ifa((__net)->ro._s_addr); \
240 				(__net)->ro._s_addr = NULL; \
241 			} \
242 			(__net)->src_addr_selected = 0; \
243 			(__net)->dest_state &=~SCTP_ADDR_REACHABLE; \
244 			SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \
245 			SCTP_DECR_RADDR_COUNT(); \
246 		} \
247 	} \
248 }
249 
250 #if defined(__Panda__)
251 #define sctp_sbfree(ctl, stcb, sb, m) { \
252 	if ((sb)->sb_cc >= (uint32_t)SCTP_BUF_LEN((m))) { \
253 		atomic_subtract_int(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
254 	} else { \
255 		(sb)->sb_cc = 0; \
256 	} \
257 	if (((ctl)->do_not_ref_stcb == 0) && stcb) { \
258 		if ((stcb)->asoc.sb_cc >= (uint32_t)SCTP_BUF_LEN((m))) { \
259 			atomic_subtract_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
260 		} else { \
261 			(stcb)->asoc.sb_cc = 0; \
262 		} \
263 	} \
264 }
265 
266 #define sctp_sballoc(stcb, sb, m) { \
267 	atomic_add_int(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
268 	if (stcb) { \
269 		atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
270 	} \
271 }
272 
273 #else
274 
275 #define sctp_sbfree(ctl, stcb, sb, m) { \
276 	SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
277 	SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \
278 	if (((ctl)->do_not_ref_stcb == 0) && stcb) { \
279 		SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
280 		SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
281 	} \
282 }
283 
284 #define sctp_sballoc(stcb, sb, m) { \
285 	atomic_add_int(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \
286 	atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \
287 	if (stcb) { \
288 		atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \
289 		atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \
290 	} \
291 }
292 #endif
293 #endif
294 
295 #define sctp_ucount_incr(val) { \
296 	val++; \
297 }
298 
299 #define sctp_ucount_decr(val) { \
300 	if (val > 0) { \
301 		val--; \
302 	} else { \
303 		val = 0; \
304 	} \
305 }
306 
307 #define sctp_mbuf_crush(data) do { \
308 	struct mbuf *_m; \
309 	_m = (data); \
310 	while (_m && (SCTP_BUF_LEN(_m) == 0)) { \
311 		(data)  = SCTP_BUF_NEXT(_m); \
312 		SCTP_BUF_NEXT(_m) = NULL; \
313 		sctp_m_free(_m); \
314 		_m = (data); \
315 	} \
316 } while (0)
317 
318 #define sctp_flight_size_decrease(tp1) do { \
319 	if (tp1->whoTo->flight_size >= tp1->book_size) \
320 		tp1->whoTo->flight_size -= tp1->book_size; \
321 	else \
322 		tp1->whoTo->flight_size = 0; \
323 } while (0)
324 
325 #define sctp_flight_size_increase(tp1) do { \
326 	(tp1)->whoTo->flight_size += (tp1)->book_size; \
327 } while (0)
328 
329 #ifdef SCTP_FS_SPEC_LOG
330 #define sctp_total_flight_decrease(stcb, tp1) do { \
331 	if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \
332 		stcb->asoc.fs_index = 0;\
333 	stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \
334 	stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.TSN_seq; \
335 	stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \
336 	stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \
337 	stcb->asoc.fslog[stcb->asoc.fs_index].incr = 0; \
338 	stcb->asoc.fslog[stcb->asoc.fs_index].decr = 1; \
339 	stcb->asoc.fs_index++; \
340 	tp1->window_probe = 0; \
341 	if (stcb->asoc.total_flight >= tp1->book_size) { \
342 		stcb->asoc.total_flight -= tp1->book_size; \
343 		if (stcb->asoc.total_flight_count > 0) \
344 			stcb->asoc.total_flight_count--; \
345 	} else { \
346 		stcb->asoc.total_flight = 0; \
347 		stcb->asoc.total_flight_count = 0; \
348 	} \
349 } while (0)
350 
351 #define sctp_total_flight_increase(stcb, tp1) do { \
352 	if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \
353 		stcb->asoc.fs_index = 0;\
354 	stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \
355 	stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.TSN_seq; \
356 	stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \
357 	stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \
358 	stcb->asoc.fslog[stcb->asoc.fs_index].incr = 1; \
359 	stcb->asoc.fslog[stcb->asoc.fs_index].decr = 0; \
360 	stcb->asoc.fs_index++; \
361 	(stcb)->asoc.total_flight_count++; \
362 	(stcb)->asoc.total_flight += (tp1)->book_size; \
363 } while (0)
364 
365 #else
366 
367 #define sctp_total_flight_decrease(stcb, tp1) do { \
368 	tp1->window_probe = 0; \
369 	if (stcb->asoc.total_flight >= tp1->book_size) { \
370 		stcb->asoc.total_flight -= tp1->book_size; \
371 		if (stcb->asoc.total_flight_count > 0) \
372 			stcb->asoc.total_flight_count--; \
373 	} else { \
374 		stcb->asoc.total_flight = 0; \
375 		stcb->asoc.total_flight_count = 0; \
376 	} \
377 } while (0)
378 
379 #define sctp_total_flight_increase(stcb, tp1) do { \
380 	(stcb)->asoc.total_flight_count++; \
381 	(stcb)->asoc.total_flight += (tp1)->book_size; \
382 } while (0)
383 
384 #endif
385 
386 #define SCTP_PF_ENABLED(_net) (_net->pf_threshold < _net->failure_threshold)
387 #define SCTP_NET_IS_PF(_net) (_net->pf_threshold < _net->error_count)
388 
389 struct sctp_nets;
390 struct sctp_inpcb;
391 struct sctp_tcb;
392 struct sctphdr;
393 
394 
395 #if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__) || defined(__Userspace__)
396 void sctp_close(struct socket *so);
397 #else
398 int sctp_detach(struct socket *so);
399 #endif
400 int sctp_disconnect(struct socket *so);
401 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
402 #if defined(__FreeBSD__) && __FreeBSD_version < 902000
403 void sctp_ctlinput __P((int, struct sockaddr *, void *));
404 int sctp_ctloutput __P((struct socket *, struct sockopt *));
405 #ifdef INET
406 void sctp_input_with_port __P((struct mbuf *, int, uint16_t));
407 void sctp_input __P((struct mbuf *, int));
408 #endif
409 void sctp_pathmtu_adjustment __P((struct sctp_tcb *, uint16_t));
410 #else
411 void sctp_ctlinput(int, struct sockaddr *, void *);
412 int sctp_ctloutput(struct socket *, struct sockopt *);
413 #ifdef INET
414 void sctp_input_with_port(struct mbuf *, int, uint16_t);
415 #if defined(__FreeBSD__) && __FreeBSD_version >= 1100020
416 int sctp_input(struct mbuf **, int *, int);
417 #else
418 void sctp_input(struct mbuf *, int);
419 #endif
420 #endif
421 void sctp_pathmtu_adjustment(struct sctp_tcb *, uint16_t);
422 #endif
423 #else
424 #if defined(__Panda__)
425 void sctp_input(pakhandle_type i_pak);
426 #elif defined(__Userspace__)
427 void sctp_pathmtu_adjustment(struct sctp_tcb *, uint16_t);
428 #else
429 void sctp_input(struct mbuf *,...);
430 #endif
431 void *sctp_ctlinput(int, struct sockaddr *, void *);
432 int sctp_ctloutput(int, struct socket *, int, int, struct mbuf **);
433 #endif
434 #if defined(__FreeBSD__) && __FreeBSD_version < 902000
435 void sctp_drain __P((void));
436 #else
437 void sctp_drain(void);
438 #endif
439 #if defined(__Userspace__)
440 void sctp_init(uint16_t,
441                int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
442                void (*)(const char *, ...));
443 #elif defined(__FreeBSD__) && __FreeBSD_version < 902000
444 void sctp_init __P((void));
445 #elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION))
446 void sctp_init(struct protosw *pp, struct domain *dp);
447 #else
448 void sctp_init(void);
449 #endif
450 void sctp_finish(void);
451 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__)
452 int sctp_flush(struct socket *, int);
453 #endif
454 #if defined(__FreeBSD__) && __FreeBSD_version < 902000
455 int sctp_shutdown __P((struct socket *));
456 void sctp_notify __P((struct sctp_inpcb *, struct ip *ip, struct sctphdr *,
457 		struct sockaddr *, struct sctp_tcb *,
458 		struct sctp_nets *));
459 #else
460 int sctp_shutdown(struct socket *);
461 void sctp_notify(struct sctp_inpcb *, struct ip *ip, struct sctphdr *,
462 		 struct sockaddr *, struct sctp_tcb *,
463 		 struct sctp_nets *);
464 #endif
465 int sctp_bindx(struct socket *, int, struct sockaddr_storage *,
466 	int, int, struct proc *);
467 /* can't use sctp_assoc_t here */
468 int sctp_peeloff(struct socket *, struct socket *, int, caddr_t, int *);
469 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
470 int sctp_ingetaddr(struct socket *, struct sockaddr **);
471 #elif defined(__Panda__)
472 int sctp_ingetaddr(struct socket *, struct sockaddr *);
473 #else
474 int sctp_ingetaddr(struct socket *, struct mbuf *);
475 #endif
476 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
477 int sctp_peeraddr(struct socket *, struct sockaddr **);
478 #elif defined(__Panda__)
479 int sctp_peeraddr(struct socket *, struct sockaddr *);
480 #else
481 int sctp_peeraddr(struct socket *, struct mbuf *);
482 #endif
483 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
484 #if __FreeBSD_version >= 700000
485 int sctp_listen(struct socket *, int, struct thread *);
486 #else
487 int sctp_listen(struct socket *, struct thread *);
488 #endif
489 #elif defined(__Windows__)
490 int sctp_listen(struct socket *, int, PKTHREAD);
491 #elif defined(__Userspace__)
492 int sctp_listen(struct socket *, int, struct proc *);
493 #else
494 int sctp_listen(struct socket *, struct proc *);
495 #endif
496 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
497 int sctp_accept(struct socket *, struct sockaddr **);
498 #elif defined(__Panda__)
499 int sctp_accept(struct socket *, struct sockaddr *, int *, void *, int *);
500 #else
501 int sctp_accept(struct socket *, struct mbuf *);
502 #endif
503 
504 #endif /* _KERNEL */
505 
506 #endif /* !_NETINET_SCTP_VAR_H_ */
507