1 /*        $KAME: sctp_uio.h,v 1.11 2005/03/06 16:04:18 itojun Exp $   */
2 /*        $NetBSD: sctp_uio.h,v 1.4 2018/07/31 13:36:31 rjs Exp $ */
3 
4 #ifndef __SCTP_UIO_H__
5 #define __SCTP_UIO_H__
6 
7 /*
8  * Copyright (c) 2001, 2002, 2003, 2004 Cisco Systems, Inc.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *      This product includes software developed by Cisco Systems, Inc.
22  * 4. Neither the name of the project nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include <sys/types.h>
40 #include <sys/socket.h>
41 
42 typedef u_int32_t sctp_assoc_t;
43 
44 #define SCTP_FUTURE_ASSOC     0
45 #define SCTP_CURRENT_ASSOC    1
46 #define SCTP_ALL_ASSOC                  2
47 
48 /* On/Off setup for subscription to events */
49 struct sctp_event_subscribe {
50           u_int8_t sctp_data_io_event;
51           u_int8_t sctp_association_event;
52           u_int8_t sctp_address_event;
53           u_int8_t sctp_send_failure_event;
54           u_int8_t sctp_peer_error_event;
55           u_int8_t sctp_shutdown_event;
56           u_int8_t sctp_partial_delivery_event;
57           u_int8_t sctp_adaption_layer_event;
58           u_int8_t sctp_stream_reset_events;
59 } __packed;
60 
61 /* ancillary data types */
62 #define SCTP_INIT   0x0001
63 #define SCTP_SNDRCV 0x0002
64 #define SCTP_EXTRCV 0x0003
65 #define SCTP_SNDINFO          0x0004
66 #define SCTP_RCVINFO          0x0005
67 #define SCTP_NXTINFO          0x0006
68 #define SCTP_PRINFO 0x0007
69 #define SCTP_AUTHINFO         0x0008
70 #define SCTP_DSTADDRV4        0x0009
71 #define SCTP_DSTADDRV6        0x000a
72 
73 struct sctp_event {
74           sctp_assoc_t se_assoc_id;
75           u_int16_t se_type;
76           u_int8_t se_on;
77 } __packed;
78 
79 /*
80  * ancillary data structures
81  */
82 struct sctp_initmsg {
83           u_int32_t sinit_num_ostreams;
84           u_int32_t sinit_max_instreams;
85           u_int16_t sinit_max_attempts;
86           u_int16_t sinit_max_init_timeo;
87 } __packed;
88 
89 struct sctp_sndrcvinfo {
90           u_int16_t sinfo_stream;
91           u_int16_t sinfo_ssn;
92           u_int16_t sinfo_flags;
93           u_int32_t sinfo_ppid;
94           u_int32_t sinfo_context;
95           u_int32_t sinfo_timetolive;
96           u_int32_t sinfo_tsn;
97           u_int32_t sinfo_cumtsn;
98           sctp_assoc_t sinfo_assoc_id;
99 } __packed;
100 
101 struct sctp_sndinfo {
102           u_int16_t snd_sid;
103           u_int16_t snd_flags;
104           u_int32_t snd_ppid;
105           u_int32_t snd_context;
106           sctp_assoc_t snd_assoc_id;
107 } __packed;
108 
109 struct sctp_rcvinfo {
110           u_int16_t rcv_sid;
111           u_int16_t rcv_ssn;
112           u_int16_t rcv_flags;
113           u_int32_t rcv_ppid;
114           u_int32_t rcv_tsn;
115           u_int32_t rcv_cumtsn;
116           u_int32_t rcv_context;
117           sctp_assoc_t rcv_assoc_id;
118 };
119 
120 struct sctp_nxtinfo {
121           u_int16_t nxt_sid;
122           u_int16_t nxt_flags;
123           u_int32_t nxt_ppid;
124           u_int32_t nxt_length;
125           sctp_assoc_t nxt_assoc_id;
126 } __packed;
127 
128 struct sctp_prinfo {
129           u_int16_t pr_policy;
130           u_int32_t pr_value;
131 };
132 
133 struct sctp_authinfo {
134           u_int16_t auth_keynumber;
135 } __packed;
136 
137 struct sctp_snd_all_completes {
138           u_int16_t sall_stream;
139           u_int16_t sall_flags;
140           u_int32_t sall_ppid;
141           u_int32_t sall_context;
142           u_int32_t sall_num_sent;
143           u_int32_t sall_num_failed;
144 } __packed;
145 
146 /* send/recv flags */
147 #define SCTP_SENDALL          0x0200
148 #define SCTP_PR_SCTP_TTL      0x0400    /* Partial Reliable on this msg */
149 #define SCTP_PR_SCTP_BUF      0x0800    /* Buffer based PR-SCTP */
150 #define SCTP_EOF              0x1000    /* Start shutdown procedures */
151 #define SCTP_UNORDERED                  0x2000    /* Message is un-ordered */
152 #define SCTP_ADDR_OVER                  0x4000    /* Override the primary-address */
153 #define SCTP_ABORT            0x8000    /* Send an ABORT to peer */
154 
155 /* Stat's */
156 struct sctp_pcbinfo {
157           u_int32_t ep_count;
158           u_int32_t asoc_count;
159           u_int32_t laddr_count;
160           u_int32_t raddr_count;
161           u_int32_t chk_count;
162           u_int32_t sockq_count;
163           u_int32_t mbuf_track;
164 } __packed;
165 
166 struct sctp_sockstat {
167           sctp_assoc_t ss_assoc_id;
168           u_int32_t ss_total_sndbuf;
169           u_int32_t ss_total_mbuf_sndbuf;
170           u_int32_t ss_total_recv_buf;
171 } __packed;
172 
173 /*
174  * notification event structures
175  */
176 
177 
178 /* association change events */
179 
180 struct sctp_assoc_change {
181           u_int16_t sac_type;
182           u_int16_t sac_flags;
183           u_int32_t sac_length;
184           u_int16_t sac_state;
185           u_int16_t sac_error;
186           u_int16_t sac_outbound_streams;
187           u_int16_t sac_inbound_streams;
188           sctp_assoc_t sac_assoc_id;
189           u_int8_t sac_info[0];
190 } __packed;
191 /* sac_state values */
192 
193 #define SCTP_COMM_UP                    0x0001
194 #define SCTP_COMM_LOST                  0x0002
195 #define SCTP_RESTART                    0x0003
196 #define SCTP_SHUTDOWN_COMP    0x0004
197 #define SCTP_CANT_STR_ASSOC   0x0005
198 
199 /* sac_info values */
200 #define SCTP_ASSOC_SUPPORTS_PR                    0x0001
201 #define SCTP_ASSOC_SUPPORTS_AUTH        0x0002
202 #define SCTP_ASSOC_SUPPORTS_ASCONF      0x0003
203 #define SCTP_ASSOC_SUPPORTS_MULTIBUF    0x0004
204 
205 /* Address events */
206 struct sctp_paddr_change {
207           u_int16_t spc_type;
208           u_int16_t spc_flags;
209           u_int32_t spc_length;
210           struct sockaddr_storage spc_aaddr;
211           u_int32_t spc_state;
212           u_int32_t spc_error;
213           sctp_assoc_t spc_assoc_id;
214 } __packed;
215 /* paddr state values */
216 #define SCTP_ADDR_AVAILABLE   0x0001
217 #define SCTP_ADDR_UNREACHABLE 0x0002
218 #define SCTP_ADDR_REMOVED     0x0003
219 #define SCTP_ADDR_ADDED                 0x0004
220 #define SCTP_ADDR_MADE_PRIM   0x0005
221 #define SCTP_ADDR_CONFIRMED   0x0006 /* XXX */
222 
223 /*
224  * CAUTION: these are user exposed SCTP addr reachability states
225  *          must be compatible with SCTP_ADDR states in sctp_constants.h
226  */
227 #ifdef SCTP_ACTIVE
228 #undef SCTP_ACTIVE
229 #endif
230 #define SCTP_ACTIVE           0x0001    /* SCTP_ADDR_REACHABLE */
231 
232 #ifdef SCTP_INACTIVE
233 #undef SCTP_INACTIVE
234 #endif
235 #define SCTP_INACTIVE                   0x0002    /* SCTP_ADDR_NOT_REACHABLE */
236 
237 
238 #ifdef SCTP_UNCONFIRMED
239 #undef SCTP_UNCONFIRMED
240 #endif
241 #define SCTP_UNCONFIRMED      0x0200  /* SCTP_ADDR_UNCONFIRMED */
242 
243 #ifdef SCTP_NOHEARTBEAT
244 #undef SCTP_NOHEARTBEAT
245 #endif
246 #define SCTP_NOHEARTBEAT        0x0040 /* SCTP_ADDR_NOHB */
247 
248 
249 /* remote error events */
250 struct sctp_remote_error {
251           u_int16_t sre_type;
252           u_int16_t sre_flags;
253           u_int32_t sre_length;
254           u_int16_t sre_error;
255           sctp_assoc_t sre_assoc_id;
256           u_int8_t  sre_data[4];
257 } __packed;
258 
259 /* data send failure event */
260 struct sctp_send_failed {
261           u_int16_t ssf_type;
262           u_int16_t ssf_flags;
263           u_int32_t ssf_length;
264           u_int32_t ssf_error;
265           struct sctp_sndrcvinfo ssf_info;
266           sctp_assoc_t ssf_assoc_id;
267           u_int8_t ssf_data[4];
268 } __packed;
269 
270 /* flag that indicates state of data */
271 #define SCTP_DATA_UNSENT      0x0001    /* inqueue never on wire */
272 #define SCTP_DATA_SENT                  0x0002    /* on wire at failure */
273 
274 /* shutdown event */
275 struct sctp_shutdown_event {
276           u_int16_t sse_type;
277           u_int16_t sse_flags;
278           u_int32_t sse_length;
279           sctp_assoc_t        sse_assoc_id;
280 } __packed;
281 
282 /* Adaption layer indication stuff */
283 struct sctp_adaption_event {
284           u_int16_t sai_type;
285           u_int16_t sai_flags;
286           u_int32_t sai_length;
287           u_int32_t sai_adaption_ind;
288           sctp_assoc_t        sai_assoc_id;
289 } __packed;
290 
291 struct sctp_setadaption {
292           u_int32_t ssb_adaption_ind;
293 } __packed;
294 
295 /* pdapi indications */
296 struct sctp_pdapi_event {
297           u_int16_t pdapi_type;
298           u_int16_t pdapi_flags;
299           u_int32_t pdapi_length;
300           u_int32_t pdapi_indication;
301           u_int32_t pdapi_stream;
302           u_int32_t pdapi_seq;
303           sctp_assoc_t        pdapi_assoc_id;
304 } __packed;
305 
306 
307 #define SCTP_PARTIAL_DELIVERY_ABORTED   0x0001
308 
309 /* sender dry indications */
310 struct sctp_sender_dry_event {
311           u_int16_t sender_dry_type;
312           u_int16_t sender_dry_flags;
313           u_int32_t sender_dry_length;
314           sctp_assoc_t sender_dry_assoc_id;
315 } __packed;
316 
317 /* stream reset stuff */
318 
319 struct sctp_stream_reset_event {
320           u_int16_t strreset_type;
321           u_int16_t strreset_flags;
322           u_int32_t strreset_length;
323           sctp_assoc_t    strreset_assoc_id;
324           u_int16_t       strreset_list[0];
325 } __packed;
326 
327 /* flags in strreset_flags filed */
328 #define SCTP_STRRESET_INBOUND_STR  0x0001
329 #define SCTP_STRRESET_OUTBOUND_STR 0x0002
330 #define SCTP_STRRESET_ALL_STREAMS  0x0004
331 #define SCTP_STRRESET_STREAM_LIST  0x0008
332 
333 #define MAX_ASOC_IDS_RET 255
334 
335 struct sctp_assoc_ids {
336           u_int16_t asls_assoc_start;   /* array of index's start at 0 */
337           u_int8_t asls_numb_present;
338           u_int8_t asls_more_to_get;
339           sctp_assoc_t asls_assoc_id[MAX_ASOC_IDS_RET];
340 } __packed;
341 
342 /* notification types */
343 #define SCTP_ASSOC_CHANGE               0x0001
344 #define SCTP_PEER_ADDR_CHANGE           0x0002
345 #define SCTP_REMOTE_ERROR               0x0003
346 #define SCTP_SEND_FAILED                0x0004
347 #define SCTP_SHUTDOWN_EVENT             0x0005
348 #define SCTP_ADAPTION_INDICATION        0x0006
349 #define SCTP_PARTIAL_DELIVERY_EVENT     0x0007
350 #define SCTP_STREAM_RESET_EVENT         0x0008 /* XXX */
351 #define SCTP_AUTHENTICATION_EVENT       0x0009
352 #define SCT_SENDER_DRY_EVENT            0x000a
353 
354 struct sctp_tlv {
355           u_int16_t sn_type;
356           u_int16_t sn_flags;
357           u_int32_t sn_length;
358 } __packed;
359 
360 
361 /* notification event */
362 union sctp_notification {
363           struct sctp_tlv sn_header;
364           struct sctp_assoc_change sn_assoc_change;
365           struct sctp_paddr_change sn_paddr_change;
366           struct sctp_remote_error sn_remote_error;
367           struct sctp_send_failed       sn_send_failed;
368           struct sctp_shutdown_event sn_shutdown_event;
369           struct sctp_adaption_event sn_adaption_event;
370           struct sctp_pdapi_event sn_pdapi_event;
371           struct sctp_stream_reset_event sn_strreset_event;
372 } __packed;
373 
374 /*
375  * socket option structs
376  */
377 #define SCTP_ISSUE_HB 0xffffffff        /* get a on-demand hb */
378 #define SCTP_NO_HB    0x0               /* turn off hb's */
379 
380 struct sctp_paddrparams {
381           sctp_assoc_t spp_assoc_id;
382           struct sockaddr_storage spp_address;
383           u_int32_t spp_hbinterval;
384           u_int16_t spp_pathmaxrxt;
385           u_int32_t spp_pathmtu;
386           u_int32_t spp_flags;
387           u_int32_t spp_ipv6_flowlabel;
388           u_int8_t spp_dscp;
389 } __packed;
390 
391 #define SPP_HB_ENABLE                   0x0001
392 #define SPP_HB_DISABLE                  0x0002
393 #define SPP_HB_DEMAND                   0x0004
394 #define SPP_HB_TIME_IS_ZERO   0x0008
395 #define SPP_PMTUD_ENABLE      0x0010
396 #define SPP_PMTUD_DISABLE     0x0020
397 #define SPP_IPV6_FLOWLABEL    0x0040
398 #define SPP_DSCP              0x0080
399 
400 struct sctp_paddrinfo {
401           sctp_assoc_t spinfo_assoc_id;
402           struct sockaddr_storage spinfo_address;
403           int32_t spinfo_state;
404           u_int32_t spinfo_cwnd;
405           u_int32_t spinfo_srtt;
406           u_int32_t spinfo_rto;
407           u_int32_t spinfo_mtu;
408 } __packed;
409 
410 struct sctp_rtoinfo {
411           sctp_assoc_t srto_assoc_id;
412           u_int32_t srto_initial;
413           u_int32_t srto_max;
414           u_int32_t srto_min;
415 } __packed;
416 
417 struct sctp_assocparams {
418           sctp_assoc_t sasoc_assoc_id;
419           u_int16_t sasoc_asocmaxrxt;
420         u_int16_t sasoc_number_peer_destinations;
421         u_int32_t sasoc_peer_rwnd;
422         u_int32_t sasoc_local_rwnd;
423         u_int32_t sasoc_cookie_life;
424 } __packed;
425 
426 struct sctp_setprim {
427           sctp_assoc_t ssp_assoc_id;
428           struct sockaddr_storage ssp_addr;
429 } __packed;
430 
431 struct sctp_setpeerprim {
432           sctp_assoc_t sspp_assoc_id;
433           struct sockaddr_storage sspp_addr;
434 } __packed;
435 
436 struct sctp_getaddresses {
437           sctp_assoc_t sget_assoc_id;
438           /* addr is filled in for N * sockaddr_storage */
439           struct sockaddr addr[1];
440 } __packed;
441 
442 struct sctp_setstrm_timeout {
443           sctp_assoc_t ssto_assoc_id;
444           u_int32_t ssto_timeout;
445           u_int32_t ssto_streamid_start;
446           u_int32_t ssto_streamid_end;
447 } __packed;
448 
449 struct sctp_status {
450           sctp_assoc_t sstat_assoc_id;
451           int32_t sstat_state;
452           u_int32_t sstat_rwnd;
453           u_int16_t sstat_unackdata;
454           u_int16_t sstat_penddata;
455         u_int16_t sstat_instrms;
456         u_int16_t sstat_outstrms;
457         u_int32_t sstat_fragmentation_point;
458           struct sctp_paddrinfo sstat_primary;
459 } __packed;
460 
461 struct sctp_cwnd_args {
462           struct sctp_nets *net;                  /* network to */
463           u_int32_t cwnd_new_value;     /* cwnd in k */
464           u_int32_t inflight;           /* flightsize in k */
465           int cwnd_augment;             /* increment to it */
466 } __packed;
467 
468 struct sctp_blk_args {
469           u_int32_t onmb;                         /* in 1k bytes */
470           u_int32_t onsb;                         /* in 1k bytes */
471           u_int16_t maxmb;              /* in 1k bytes */
472           u_int16_t maxsb;              /* in 1k bytes */
473           u_int16_t send_sent_qcnt;     /* chnk cnt */
474           u_int16_t stream_qcnt;                  /* chnk cnt */
475 } __packed;
476 
477 /*
478  * Max we can reset in one setting, note this is dictated not by the
479  * define but the size of a mbuf cluster so don't change this define
480  * and think you can specify more. You must do multiple resets if you
481  * want to reset more than SCTP_MAX_EXPLICIT_STR_RESET.
482  */
483 #define SCTP_MAX_EXPLICT_STR_RESET   1000
484 
485 #define SCTP_RESET_LOCAL_RECV  0x0001
486 #define SCTP_RESET_LOCAL_SEND  0x0002
487 #define SCTP_RESET_BOTH        0x0003
488 
489 struct sctp_stream_reset {
490           sctp_assoc_t strrst_assoc_id;
491           u_int16_t    strrst_flags;
492           u_int16_t    strrst_num_streams;        /* 0 == ALL */
493           u_int16_t    strrst_list[0];            /* list if strrst_num_streams is not 0*/
494 } __packed;
495 
496 
497 struct sctp_get_nonce_values {
498           sctp_assoc_t gn_assoc_id;
499           u_int32_t    gn_peers_tag;
500           u_int32_t    gn_local_tag;
501 } __packed;
502 
503 /* Debugging logs */
504 struct sctp_str_log{
505           u_int32_t n_tsn;
506           u_int32_t e_tsn;
507           u_int16_t n_sseq;
508           u_int16_t e_sseq;
509 } __packed;
510 
511 struct sctp_fr_log {
512           u_int32_t largest_tsn;
513           u_int32_t largest_new_tsn;
514           u_int32_t tsn;
515 } __packed;
516 
517 struct sctp_fr_map {
518           u_int32_t base;
519           u_int32_t cum;
520           u_int32_t high;
521 } __packed;
522 
523 struct sctp_rwnd_log {
524           u_int32_t rwnd;
525           u_int32_t send_size;
526           u_int32_t overhead;
527           u_int32_t new_rwnd;
528 } __packed;
529 
530 struct sctp_mbcnt_log {
531           u_int32_t total_queue_size;
532           u_int32_t size_change;
533           u_int32_t total_queue_mb_size;
534           u_int32_t mbcnt_change;
535 } __packed;
536 
537 struct sctp_cwnd_log {
538           union {
539                     struct sctp_blk_args blk;
540                     struct sctp_cwnd_args cwnd;
541                     struct sctp_str_log strlog;
542                     struct sctp_fr_log fr;
543                     struct sctp_fr_map map;
544                     struct sctp_rwnd_log rwnd;
545                     struct sctp_mbcnt_log mbcnt;
546           }x;
547           u_int8_t from;
548           u_int8_t event_type;
549 
550 } __packed;
551 
552 struct sctp_cwnd_log_req {
553           int num_in_log;     /* Number in log */
554           int num_ret;        /* Number returned */
555           int start_at;       /* start at this one */
556           int end_at;         /* end at this one */
557           struct sctp_cwnd_log log[0];
558 } __packed;
559 
560 struct sctp_sendv_spa {
561           u_int32_t sendv_flags;
562           struct sctp_sndinfo sendv_sndinfo;
563           struct sctp_prinfo sendv_prinfo;
564           struct sctp_authinfo sendv_authinfo;
565 } __packed;
566 
567 #define SCTP_SEND_SNDINFO_VALID                   0x00000001
568 #define SCTP_SEND_PRINFO_VALID                    0x00000002
569 #define SCTP_SEND_AUTHINFO_VALID        0x00000004
570 
571 #define SCTP_SENDV_NOINFO     0x0000
572 #define SCTP_SENDV_SNDINFO    0x0001
573 #define SCTP_SENDV_PRINFO     0x0002
574 #define SCTP_SENDV_AUTHINFO   0x0003
575 #define SCTP_SENDV_SPA                  0x0004
576 
577 struct sctp_recvv_rn {
578           struct sctp_rcvinfo recvv_rcvinfo;
579           struct sctp_nxtinfo recvv_nxtinfo;
580 } __packed;
581 
582 #define SCTP_RECVV_NOINFO     0x0000
583 #define SCTP_RECVV_RCVINFO    0x0001
584 #define SCTP_RECVV_NXTINFO    0x0002
585 #define SCTP_RECVV_RN                   0x0003
586 
587 struct sctp_connectx_addrs {
588           int cx_num;
589           int cx_len;
590           void *cx_addrs;
591 } __packed;
592 
593 #define SIOCCONNECTX          _IOWR('s', 11, struct sctp_connectx_addrs)
594 #define SIOCCONNECTXDEL       _IOWR('s', 12, struct sctp_connectx_addrs)
595 
596 /*
597  * API system calls
598  */
599 #if !defined(_KERNEL)
600 
601 __BEGIN_DECLS
602 int sctp_peeloff(int, sctp_assoc_t);
603 int       sctp_bindx(int, struct sockaddr *, int, int);
604 int     sctp_connectx(int, struct sockaddr *, int, sctp_assoc_t *);
605 int       sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
606 void      sctp_freepaddrs(struct sockaddr *);
607 int       sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
608 void      sctp_freeladdrs(struct sockaddr *);
609 int     sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
610 
611 ssize_t sctp_sendmsg(int, const void *, size_t,
612           const struct sockaddr *,
613           socklen_t, u_int32_t, u_int32_t, u_int16_t, u_int32_t, u_int32_t);
614 
615 ssize_t sctp_send(int, const void *, size_t,
616           const struct sctp_sndrcvinfo *, int);
617 
618 ssize_t
619 sctp_sendx(int, const void *, size_t, struct sockaddr *, int,
620                     struct sctp_sndrcvinfo *, int);
621 ssize_t
622 sctp_sendmsgx(int sd, const void *, size_t,
623                 struct sockaddr *, int,
624                 u_int32_t, u_int32_t, u_int16_t, u_int32_t, u_int32_t);
625 ssize_t sctp_sendv(int, const struct iovec *, int, struct sockaddr *, int,
626                       void *, socklen_t, unsigned int, int);
627 
628 sctp_assoc_t
629 sctp_getassocid(int sd, struct sockaddr *sa);
630 
631 ssize_t sctp_recvmsg(int, void *, size_t, struct sockaddr *,
632         socklen_t *, struct sctp_sndrcvinfo *, int *);
633 ssize_t sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
634                       socklen_t *, void *, socklen_t *, unsigned int *,
635                       int *);
636 
637 __END_DECLS
638 
639 #endif /* !_KERNEL */
640 #endif /* !__SCTP_UIO_H__ */
641