sctp_uio.h revision 303267 
1/*-
2 * Copyright (c) 2001-2007, 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#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: stable/11/sys/netinet/sctp_uio.h 303267 2016-07-24 14:50:16Z tuexen $");
35
36#ifndef _NETINET_SCTP_UIO_H_
37#define _NETINET_SCTP_UIO_H_
38
39
40#if ! defined(_KERNEL)
41#include <stdint.h>
42#endif
43#include <sys/types.h>
44#include <sys/socket.h>
45#include <netinet/in.h>
46
47typedef uint32_t sctp_assoc_t;
48
49#define SCTP_FUTURE_ASSOC  0
50#define SCTP_CURRENT_ASSOC 1
51#define SCTP_ALL_ASSOC     2
52
53struct sctp_event {
54	sctp_assoc_t se_assoc_id;
55	uint16_t se_type;
56	uint8_t se_on;
57};
58
59/* Compatibility to previous define's */
60#define sctp_stream_reset_events sctp_stream_reset_event
61
62/* On/Off setup for subscription to events */
63struct sctp_event_subscribe {
64	uint8_t sctp_data_io_event;
65	uint8_t sctp_association_event;
66	uint8_t sctp_address_event;
67	uint8_t sctp_send_failure_event;
68	uint8_t sctp_peer_error_event;
69	uint8_t sctp_shutdown_event;
70	uint8_t sctp_partial_delivery_event;
71	uint8_t sctp_adaptation_layer_event;
72	uint8_t sctp_authentication_event;
73	uint8_t sctp_sender_dry_event;
74	uint8_t sctp_stream_reset_event;
75};
76
77/* ancillary data types */
78#define SCTP_INIT	0x0001
79#define SCTP_SNDRCV	0x0002
80#define SCTP_EXTRCV	0x0003
81#define SCTP_SNDINFO    0x0004
82#define SCTP_RCVINFO    0x0005
83#define SCTP_NXTINFO    0x0006
84#define SCTP_PRINFO     0x0007
85#define SCTP_AUTHINFO   0x0008
86#define SCTP_DSTADDRV4  0x0009
87#define SCTP_DSTADDRV6  0x000a
88
89/*
90 * ancillary data structures
91 */
92struct sctp_initmsg {
93	uint16_t sinit_num_ostreams;
94	uint16_t sinit_max_instreams;
95	uint16_t sinit_max_attempts;
96	uint16_t sinit_max_init_timeo;
97};
98
99/* We add 96 bytes to the size of sctp_sndrcvinfo.
100 * This makes the current structure 128 bytes long
101 * which is nicely 64 bit aligned but also has room
102 * for us to add more and keep ABI compatibility.
103 * For example, already we have the sctp_extrcvinfo
104 * when enabled which is 48 bytes.
105 */
106
107/*
108 * The assoc up needs a verfid
109 * all sendrcvinfo's need a verfid for SENDING only.
110 */
111
112
113#define SCTP_ALIGN_RESV_PAD 92
114#define SCTP_ALIGN_RESV_PAD_SHORT 76
115
116struct sctp_sndrcvinfo {
117	uint16_t sinfo_stream;
118	uint16_t sinfo_ssn;
119	uint16_t sinfo_flags;
120	uint32_t sinfo_ppid;
121	uint32_t sinfo_context;
122	uint32_t sinfo_timetolive;
123	uint32_t sinfo_tsn;
124	uint32_t sinfo_cumtsn;
125	sctp_assoc_t sinfo_assoc_id;
126	uint16_t sinfo_keynumber;
127	uint16_t sinfo_keynumber_valid;
128	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
129};
130
131struct sctp_extrcvinfo {
132	uint16_t sinfo_stream;
133	uint16_t sinfo_ssn;
134	uint16_t sinfo_flags;
135	uint32_t sinfo_ppid;
136	uint32_t sinfo_context;
137	uint32_t sinfo_timetolive;	/* should have been sinfo_pr_value */
138	uint32_t sinfo_tsn;
139	uint32_t sinfo_cumtsn;
140	sctp_assoc_t sinfo_assoc_id;
141	uint16_t serinfo_next_flags;
142	uint16_t serinfo_next_stream;
143	uint32_t serinfo_next_aid;
144	uint32_t serinfo_next_length;
145	uint32_t serinfo_next_ppid;
146	uint16_t sinfo_keynumber;
147	uint16_t sinfo_keynumber_valid;
148	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
149};
150
151#define sinfo_pr_value sinfo_timetolive
152#define sreinfo_next_flags serinfo_next_flags
153#define sreinfo_next_stream serinfo_next_stream
154#define sreinfo_next_aid serinfo_next_aid
155#define sreinfo_next_length serinfo_next_length
156#define sreinfo_next_ppid serinfo_next_ppid
157
158struct sctp_sndinfo {
159	uint16_t snd_sid;
160	uint16_t snd_flags;
161	uint32_t snd_ppid;
162	uint32_t snd_context;
163	sctp_assoc_t snd_assoc_id;
164};
165
166struct sctp_prinfo {
167	uint16_t pr_policy;
168	uint32_t pr_value;
169};
170
171struct sctp_default_prinfo {
172	uint16_t pr_policy;
173	uint32_t pr_value;
174	sctp_assoc_t pr_assoc_id;
175};
176
177struct sctp_authinfo {
178	uint16_t auth_keynumber;
179};
180
181struct sctp_rcvinfo {
182	uint16_t rcv_sid;
183	uint16_t rcv_ssn;
184	uint16_t rcv_flags;
185	uint32_t rcv_ppid;
186	uint32_t rcv_tsn;
187	uint32_t rcv_cumtsn;
188	uint32_t rcv_context;
189	sctp_assoc_t rcv_assoc_id;
190};
191
192struct sctp_nxtinfo {
193	uint16_t nxt_sid;
194	uint16_t nxt_flags;
195	uint32_t nxt_ppid;
196	uint32_t nxt_length;
197	sctp_assoc_t nxt_assoc_id;
198};
199
200#define SCTP_NO_NEXT_MSG           0x0000
201#define SCTP_NEXT_MSG_AVAIL        0x0001
202#define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
203#define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
204#define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
205
206struct sctp_recvv_rn {
207	struct sctp_rcvinfo recvv_rcvinfo;
208	struct sctp_nxtinfo recvv_nxtinfo;
209};
210
211#define SCTP_RECVV_NOINFO  0
212#define SCTP_RECVV_RCVINFO 1
213#define SCTP_RECVV_NXTINFO 2
214#define SCTP_RECVV_RN      3
215
216#define SCTP_SENDV_NOINFO   0
217#define SCTP_SENDV_SNDINFO  1
218#define SCTP_SENDV_PRINFO   2
219#define SCTP_SENDV_AUTHINFO 3
220#define SCTP_SENDV_SPA      4
221
222struct sctp_sendv_spa {
223	uint32_t sendv_flags;
224	struct sctp_sndinfo sendv_sndinfo;
225	struct sctp_prinfo sendv_prinfo;
226	struct sctp_authinfo sendv_authinfo;
227};
228
229#define SCTP_SEND_SNDINFO_VALID  0x00000001
230#define SCTP_SEND_PRINFO_VALID   0x00000002
231#define SCTP_SEND_AUTHINFO_VALID 0x00000004
232
233struct sctp_snd_all_completes {
234	uint16_t sall_stream;
235	uint16_t sall_flags;
236	uint32_t sall_ppid;
237	uint32_t sall_context;
238	uint32_t sall_num_sent;
239	uint32_t sall_num_failed;
240};
241
242/* Flags that go into the sinfo->sinfo_flags field */
243#define SCTP_NOTIFICATION     0x0010	/* next message is a notification */
244#define SCTP_COMPLETE         0x0020	/* next message is complete */
245#define SCTP_EOF              0x0100	/* Start shutdown procedures */
246#define SCTP_ABORT            0x0200	/* Send an ABORT to peer */
247#define SCTP_UNORDERED        0x0400	/* Message is un-ordered */
248#define SCTP_ADDR_OVER        0x0800	/* Override the primary-address */
249#define SCTP_SENDALL          0x1000	/* Send this on all associations */
250#define SCTP_EOR              0x2000	/* end of message signal */
251#define SCTP_SACK_IMMEDIATELY 0x4000	/* Set I-Bit */
252
253#define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \
254                                    & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
255				        SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\
256					SCTP_SACK_IMMEDIATELY)) != 0)
257/* for the endpoint */
258
259/* The lower four bits is an enumeration of PR-SCTP policies */
260#define SCTP_PR_SCTP_NONE 0x0000/* Reliable transfer */
261#define SCTP_PR_SCTP_TTL  0x0001/* Time based PR-SCTP */
262#define SCTP_PR_SCTP_PRIO 0x0002/* Buffer based PR-SCTP */
263#define SCTP_PR_SCTP_BUF  SCTP_PR_SCTP_PRIO	/* For backwards compatibility */
264#define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
265#define SCTP_PR_SCTP_MAX  SCTP_PR_SCTP_RTX
266#define SCTP_PR_SCTP_ALL  0x000f/* Used for aggregated stats */
267
268#define PR_SCTP_POLICY(x)         ((x) & 0x0f)
269#define PR_SCTP_ENABLED(x)        ((PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) && \
270                                   (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_ALL))
271#define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
272#define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
273#define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
274#define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_MAX)
275#define PR_SCTP_VALID_POLICY(x)   (PR_SCTP_POLICY(x) <= SCTP_PR_SCTP_MAX)
276
277/* Stat's */
278struct sctp_pcbinfo {
279	uint32_t ep_count;
280	uint32_t asoc_count;
281	uint32_t laddr_count;
282	uint32_t raddr_count;
283	uint32_t chk_count;
284	uint32_t readq_count;
285	uint32_t free_chunks;
286	uint32_t stream_oque;
287};
288
289struct sctp_sockstat {
290	sctp_assoc_t ss_assoc_id;
291	uint32_t ss_total_sndbuf;
292	uint32_t ss_total_recv_buf;
293};
294
295/*
296 * notification event structures
297 */
298
299/*
300 * association change event
301 */
302struct sctp_assoc_change {
303	uint16_t sac_type;
304	uint16_t sac_flags;
305	uint32_t sac_length;
306	uint16_t sac_state;
307	uint16_t sac_error;
308	uint16_t sac_outbound_streams;
309	uint16_t sac_inbound_streams;
310	sctp_assoc_t sac_assoc_id;
311	uint8_t sac_info[];
312};
313
314/* sac_state values */
315#define SCTP_COMM_UP            0x0001
316#define SCTP_COMM_LOST          0x0002
317#define SCTP_RESTART            0x0003
318#define SCTP_SHUTDOWN_COMP      0x0004
319#define SCTP_CANT_STR_ASSOC     0x0005
320
321/* sac_info values */
322#define SCTP_ASSOC_SUPPORTS_PR			0x01
323#define SCTP_ASSOC_SUPPORTS_AUTH		0x02
324#define SCTP_ASSOC_SUPPORTS_ASCONF		0x03
325#define SCTP_ASSOC_SUPPORTS_MULTIBUF		0x04
326#define SCTP_ASSOC_SUPPORTS_RE_CONFIG		0x05
327#define SCTP_ASSOC_SUPPORTS_INTERLEAVING	0x06
328#define SCTP_ASSOC_SUPPORTS_MAX			0x06
329/*
330 * Address event
331 */
332struct sctp_paddr_change {
333	uint16_t spc_type;
334	uint16_t spc_flags;
335	uint32_t spc_length;
336	struct sockaddr_storage spc_aaddr;
337	uint32_t spc_state;
338	uint32_t spc_error;
339	sctp_assoc_t spc_assoc_id;
340};
341
342/* paddr state values */
343#define SCTP_ADDR_AVAILABLE	0x0001
344#define SCTP_ADDR_UNREACHABLE	0x0002
345#define SCTP_ADDR_REMOVED	0x0003
346#define SCTP_ADDR_ADDED		0x0004
347#define SCTP_ADDR_MADE_PRIM	0x0005
348#define SCTP_ADDR_CONFIRMED	0x0006
349
350#define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
351#define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE nor
352					 * SCTP_ADDR_UNCONFIRMED */
353#define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
354
355/* remote error events */
356struct sctp_remote_error {
357	uint16_t sre_type;
358	uint16_t sre_flags;
359	uint32_t sre_length;
360	uint16_t sre_error;
361	sctp_assoc_t sre_assoc_id;
362	uint8_t sre_data[];
363};
364
365/* data send failure event (deprecated) */
366struct sctp_send_failed {
367	uint16_t ssf_type;
368	uint16_t ssf_flags;
369	uint32_t ssf_length;
370	uint32_t ssf_error;
371	struct sctp_sndrcvinfo ssf_info;
372	sctp_assoc_t ssf_assoc_id;
373	uint8_t ssf_data[];
374};
375
376/* data send failure event (not deprecated) */
377struct sctp_send_failed_event {
378	uint16_t ssfe_type;
379	uint16_t ssfe_flags;
380	uint32_t ssfe_length;
381	uint32_t ssfe_error;
382	struct sctp_sndinfo ssfe_info;
383	sctp_assoc_t ssfe_assoc_id;
384	uint8_t ssfe_data[];
385};
386
387/* flag that indicates state of data */
388#define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
389#define SCTP_DATA_SENT		0x0002	/* on wire at failure */
390
391/* shutdown event */
392struct sctp_shutdown_event {
393	uint16_t sse_type;
394	uint16_t sse_flags;
395	uint32_t sse_length;
396	sctp_assoc_t sse_assoc_id;
397};
398
399/* Adaptation layer indication stuff */
400struct sctp_adaptation_event {
401	uint16_t sai_type;
402	uint16_t sai_flags;
403	uint32_t sai_length;
404	uint32_t sai_adaptation_ind;
405	sctp_assoc_t sai_assoc_id;
406};
407
408struct sctp_setadaptation {
409	uint32_t ssb_adaptation_ind;
410};
411
412/* compatible old spelling */
413struct sctp_adaption_event {
414	uint16_t sai_type;
415	uint16_t sai_flags;
416	uint32_t sai_length;
417	uint32_t sai_adaption_ind;
418	sctp_assoc_t sai_assoc_id;
419};
420
421struct sctp_setadaption {
422	uint32_t ssb_adaption_ind;
423};
424
425
426/*
427 * Partial Delivery API event
428 */
429struct sctp_pdapi_event {
430	uint16_t pdapi_type;
431	uint16_t pdapi_flags;
432	uint32_t pdapi_length;
433	uint32_t pdapi_indication;
434	uint16_t pdapi_stream;
435	uint16_t pdapi_seq;
436	sctp_assoc_t pdapi_assoc_id;
437};
438
439/* indication values */
440#define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
441
442
443/*
444 * authentication key event
445 */
446struct sctp_authkey_event {
447	uint16_t auth_type;
448	uint16_t auth_flags;
449	uint32_t auth_length;
450	uint16_t auth_keynumber;
451	uint16_t auth_altkeynumber;
452	uint32_t auth_indication;
453	sctp_assoc_t auth_assoc_id;
454};
455
456/* indication values */
457#define SCTP_AUTH_NEW_KEY	0x0001
458#define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY
459#define SCTP_AUTH_NO_AUTH	0x0002
460#define SCTP_AUTH_FREE_KEY	0x0003
461
462
463struct sctp_sender_dry_event {
464	uint16_t sender_dry_type;
465	uint16_t sender_dry_flags;
466	uint32_t sender_dry_length;
467	sctp_assoc_t sender_dry_assoc_id;
468};
469
470
471/*
472 * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
473 */
474struct sctp_stream_reset_event {
475	uint16_t strreset_type;
476	uint16_t strreset_flags;
477	uint32_t strreset_length;
478	sctp_assoc_t strreset_assoc_id;
479	uint16_t strreset_stream_list[];
480};
481
482/* flags in stream_reset_event (strreset_flags) */
483#define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
484#define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
485#define SCTP_STREAM_RESET_DENIED        0x0004
486#define SCTP_STREAM_RESET_FAILED        0x0008
487
488/*
489 * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
490 */
491struct sctp_assoc_reset_event {
492	uint16_t assocreset_type;
493	uint16_t assocreset_flags;
494	uint32_t assocreset_length;
495	sctp_assoc_t assocreset_assoc_id;
496	uint32_t assocreset_local_tsn;
497	uint32_t assocreset_remote_tsn;
498};
499
500#define SCTP_ASSOC_RESET_DENIED		0x0004
501#define SCTP_ASSOC_RESET_FAILED		0x0008
502
503/*
504 * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
505 */
506struct sctp_stream_change_event {
507	uint16_t strchange_type;
508	uint16_t strchange_flags;
509	uint32_t strchange_length;
510	sctp_assoc_t strchange_assoc_id;
511	uint16_t strchange_instrms;
512	uint16_t strchange_outstrms;
513};
514
515#define SCTP_STREAM_CHANGE_DENIED	0x0004
516#define SCTP_STREAM_CHANGE_FAILED	0x0008
517
518
519/* SCTP notification event */
520struct sctp_tlv {
521	uint16_t sn_type;
522	uint16_t sn_flags;
523	uint32_t sn_length;
524};
525
526union sctp_notification {
527	struct sctp_tlv sn_header;
528	struct sctp_assoc_change sn_assoc_change;
529	struct sctp_paddr_change sn_paddr_change;
530	struct sctp_remote_error sn_remote_error;
531	struct sctp_send_failed sn_send_failed;
532	struct sctp_shutdown_event sn_shutdown_event;
533	struct sctp_adaptation_event sn_adaptation_event;
534	/* compatibility same as above */
535	struct sctp_adaption_event sn_adaption_event;
536	struct sctp_pdapi_event sn_pdapi_event;
537	struct sctp_authkey_event sn_auth_event;
538	struct sctp_sender_dry_event sn_sender_dry_event;
539	struct sctp_send_failed_event sn_send_failed_event;
540	struct sctp_stream_reset_event sn_strreset_event;
541	struct sctp_assoc_reset_event sn_assocreset_event;
542	struct sctp_stream_change_event sn_strchange_event;
543};
544
545/* notification types */
546#define SCTP_ASSOC_CHANGE                       0x0001
547#define SCTP_PEER_ADDR_CHANGE                   0x0002
548#define SCTP_REMOTE_ERROR                       0x0003
549#define SCTP_SEND_FAILED                        0x0004
550#define SCTP_SHUTDOWN_EVENT                     0x0005
551#define SCTP_ADAPTATION_INDICATION              0x0006
552/* same as above */
553#define SCTP_ADAPTION_INDICATION                0x0006
554#define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
555#define SCTP_AUTHENTICATION_EVENT               0x0008
556#define SCTP_STREAM_RESET_EVENT                 0x0009
557#define SCTP_SENDER_DRY_EVENT                   0x000a
558#define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b	/* we don't send this */
559#define SCTP_ASSOC_RESET_EVENT                  0x000c
560#define SCTP_STREAM_CHANGE_EVENT                0x000d
561#define SCTP_SEND_FAILED_EVENT                  0x000e
562/*
563 * socket option structs
564 */
565
566struct sctp_paddrparams {
567	struct sockaddr_storage spp_address;
568	sctp_assoc_t spp_assoc_id;
569	uint32_t spp_hbinterval;
570	uint32_t spp_pathmtu;
571	uint32_t spp_flags;
572	uint32_t spp_ipv6_flowlabel;
573	uint16_t spp_pathmaxrxt;
574	uint8_t spp_dscp;
575};
576
577#define spp_ipv4_tos spp_dscp
578
579#define SPP_HB_ENABLE		0x00000001
580#define SPP_HB_DISABLE		0x00000002
581#define SPP_HB_DEMAND		0x00000004
582#define SPP_PMTUD_ENABLE	0x00000008
583#define SPP_PMTUD_DISABLE	0x00000010
584#define SPP_HB_TIME_IS_ZERO     0x00000080
585#define SPP_IPV6_FLOWLABEL      0x00000100
586#define SPP_DSCP                0x00000200
587#define SPP_IPV4_TOS            SPP_DSCP
588
589struct sctp_paddrthlds {
590	struct sockaddr_storage spt_address;
591	sctp_assoc_t spt_assoc_id;
592	uint16_t spt_pathmaxrxt;
593	uint16_t spt_pathpfthld;
594	uint16_t spt_pathcpthld;
595};
596
597struct sctp_paddrinfo {
598	struct sockaddr_storage spinfo_address;
599	sctp_assoc_t spinfo_assoc_id;
600	int32_t spinfo_state;
601	uint32_t spinfo_cwnd;
602	uint32_t spinfo_srtt;
603	uint32_t spinfo_rto;
604	uint32_t spinfo_mtu;
605};
606
607struct sctp_rtoinfo {
608	sctp_assoc_t srto_assoc_id;
609	uint32_t srto_initial;
610	uint32_t srto_max;
611	uint32_t srto_min;
612};
613
614struct sctp_assocparams {
615	sctp_assoc_t sasoc_assoc_id;
616	uint32_t sasoc_peer_rwnd;
617	uint32_t sasoc_local_rwnd;
618	uint32_t sasoc_cookie_life;
619	uint16_t sasoc_asocmaxrxt;
620	uint16_t sasoc_number_peer_destinations;
621};
622
623struct sctp_setprim {
624	struct sockaddr_storage ssp_addr;
625	sctp_assoc_t ssp_assoc_id;
626	uint8_t ssp_padding[4];
627};
628
629struct sctp_setpeerprim {
630	struct sockaddr_storage sspp_addr;
631	sctp_assoc_t sspp_assoc_id;
632	uint8_t sspp_padding[4];
633};
634
635struct sctp_getaddresses {
636	sctp_assoc_t sget_assoc_id;
637	/* addr is filled in for N * sockaddr_storage */
638	struct sockaddr addr[1];
639};
640
641struct sctp_status {
642	sctp_assoc_t sstat_assoc_id;
643	int32_t sstat_state;
644	uint32_t sstat_rwnd;
645	uint16_t sstat_unackdata;
646	uint16_t sstat_penddata;
647	uint16_t sstat_instrms;
648	uint16_t sstat_outstrms;
649	uint32_t sstat_fragmentation_point;
650	struct sctp_paddrinfo sstat_primary;
651};
652
653/*
654 * AUTHENTICATION support
655 */
656/* SCTP_AUTH_CHUNK */
657struct sctp_authchunk {
658	uint8_t sauth_chunk;
659};
660
661/* SCTP_AUTH_KEY */
662struct sctp_authkey {
663	sctp_assoc_t sca_assoc_id;
664	uint16_t sca_keynumber;
665	uint16_t sca_keylength;
666	uint8_t sca_key[];
667};
668
669/* SCTP_HMAC_IDENT */
670struct sctp_hmacalgo {
671	uint32_t shmac_number_of_idents;
672	uint16_t shmac_idents[];
673};
674
675/* AUTH hmac_id */
676#define SCTP_AUTH_HMAC_ID_RSVD		0x0000
677#define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
678#define SCTP_AUTH_HMAC_ID_SHA256	0x0003
679
680/* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
681struct sctp_authkeyid {
682	sctp_assoc_t scact_assoc_id;
683	uint16_t scact_keynumber;
684};
685
686/* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
687struct sctp_authchunks {
688	sctp_assoc_t gauth_assoc_id;
689	uint32_t gauth_number_of_chunks;
690	uint8_t gauth_chunks[];
691};
692
693struct sctp_assoc_value {
694	sctp_assoc_t assoc_id;
695	uint32_t assoc_value;
696};
697
698struct sctp_cc_option {
699	int option;
700	struct sctp_assoc_value aid_value;
701};
702
703struct sctp_stream_value {
704	sctp_assoc_t assoc_id;
705	uint16_t stream_id;
706	uint16_t stream_value;
707};
708
709struct sctp_assoc_ids {
710	uint32_t gaids_number_of_ids;
711	sctp_assoc_t gaids_assoc_id[];
712};
713
714struct sctp_sack_info {
715	sctp_assoc_t sack_assoc_id;
716	uint32_t sack_delay;
717	uint32_t sack_freq;
718};
719
720struct sctp_timeouts {
721	sctp_assoc_t stimo_assoc_id;
722	uint32_t stimo_init;
723	uint32_t stimo_data;
724	uint32_t stimo_sack;
725	uint32_t stimo_shutdown;
726	uint32_t stimo_heartbeat;
727	uint32_t stimo_cookie;
728	uint32_t stimo_shutdownack;
729};
730
731struct sctp_udpencaps {
732	struct sockaddr_storage sue_address;
733	sctp_assoc_t sue_assoc_id;
734	uint16_t sue_port;
735};
736
737struct sctp_prstatus {
738	sctp_assoc_t sprstat_assoc_id;
739	uint16_t sprstat_sid;
740	uint16_t sprstat_policy;
741	uint64_t sprstat_abandoned_unsent;
742	uint64_t sprstat_abandoned_sent;
743};
744
745struct sctp_cwnd_args {
746	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
747	uint32_t cwnd_new_value;/* cwnd in k */
748	uint32_t pseudo_cumack;
749	uint16_t inflight;	/* flightsize in k */
750	uint16_t cwnd_augment;	/* increment to it */
751	uint8_t meets_pseudo_cumack;
752	uint8_t need_new_pseudo_cumack;
753	uint8_t cnt_in_send;
754	uint8_t cnt_in_str;
755};
756
757struct sctp_blk_args {
758	uint32_t onsb;		/* in 1k bytes */
759	uint32_t sndlen;	/* len of send being attempted */
760	uint32_t peer_rwnd;	/* rwnd of peer */
761	uint16_t send_sent_qcnt;/* chnk cnt */
762	uint16_t stream_qcnt;	/* chnk cnt */
763	uint16_t chunks_on_oque;/* chunks out */
764	uint16_t flight_size;	/* flight size in k */
765};
766
767/*
768 * Max we can reset in one setting, note this is dictated not by the define
769 * but the size of a mbuf cluster so don't change this define and think you
770 * can specify more. You must do multiple resets if you want to reset more
771 * than SCTP_MAX_EXPLICIT_STR_RESET.
772 */
773#define SCTP_MAX_EXPLICT_STR_RESET   1000
774
775struct sctp_reset_streams {
776	sctp_assoc_t srs_assoc_id;
777	uint16_t srs_flags;
778	uint16_t srs_number_streams;	/* 0 == ALL */
779	uint16_t srs_stream_list[];	/* list if strrst_num_streams is not 0 */
780};
781
782struct sctp_add_streams {
783	sctp_assoc_t sas_assoc_id;
784	uint16_t sas_instrms;
785	uint16_t sas_outstrms;
786};
787
788struct sctp_get_nonce_values {
789	sctp_assoc_t gn_assoc_id;
790	uint32_t gn_peers_tag;
791	uint32_t gn_local_tag;
792};
793
794/* Debugging logs */
795struct sctp_str_log {
796	void *stcb;		/* FIXME: LP64 issue */
797	uint32_t n_tsn;
798	uint32_t e_tsn;
799	uint16_t n_sseq;
800	uint16_t e_sseq;
801	uint16_t strm;
802};
803
804struct sctp_sb_log {
805	void *stcb;		/* FIXME: LP64 issue */
806	uint32_t so_sbcc;
807	uint32_t stcb_sbcc;
808	uint32_t incr;
809};
810
811struct sctp_fr_log {
812	uint32_t largest_tsn;
813	uint32_t largest_new_tsn;
814	uint32_t tsn;
815};
816
817struct sctp_fr_map {
818	uint32_t base;
819	uint32_t cum;
820	uint32_t high;
821};
822
823struct sctp_rwnd_log {
824	uint32_t rwnd;
825	uint32_t send_size;
826	uint32_t overhead;
827	uint32_t new_rwnd;
828};
829
830struct sctp_mbcnt_log {
831	uint32_t total_queue_size;
832	uint32_t size_change;
833	uint32_t total_queue_mb_size;
834	uint32_t mbcnt_change;
835};
836
837struct sctp_sack_log {
838	uint32_t cumack;
839	uint32_t oldcumack;
840	uint32_t tsn;
841	uint16_t numGaps;
842	uint16_t numDups;
843};
844
845struct sctp_lock_log {
846	void *sock;		/* FIXME: LP64 issue */
847	void *inp;		/* FIXME: LP64 issue */
848	uint8_t tcb_lock;
849	uint8_t inp_lock;
850	uint8_t info_lock;
851	uint8_t sock_lock;
852	uint8_t sockrcvbuf_lock;
853	uint8_t socksndbuf_lock;
854	uint8_t create_lock;
855	uint8_t resv;
856};
857
858struct sctp_rto_log {
859	void *net;		/* FIXME: LP64 issue */
860	uint32_t rtt;
861};
862
863struct sctp_nagle_log {
864	void *stcb;		/* FIXME: LP64 issue */
865	uint32_t total_flight;
866	uint32_t total_in_queue;
867	uint16_t count_in_queue;
868	uint16_t count_in_flight;
869};
870
871struct sctp_sbwake_log {
872	void *stcb;		/* FIXME: LP64 issue */
873	uint16_t send_q;
874	uint16_t sent_q;
875	uint16_t flight;
876	uint16_t wake_cnt;
877	uint8_t stream_qcnt;	/* chnk cnt */
878	uint8_t chunks_on_oque;	/* chunks out */
879	uint8_t sbflags;
880	uint8_t sctpflags;
881};
882
883struct sctp_misc_info {
884	uint32_t log1;
885	uint32_t log2;
886	uint32_t log3;
887	uint32_t log4;
888};
889
890struct sctp_log_closing {
891	void *inp;		/* FIXME: LP64 issue */
892	void *stcb;		/* FIXME: LP64 issue */
893	uint32_t sctp_flags;
894	uint16_t state;
895	int16_t loc;
896};
897
898struct sctp_mbuf_log {
899	struct mbuf *mp;	/* FIXME: LP64 issue */
900	caddr_t ext;
901	caddr_t data;
902	uint16_t size;
903	uint8_t refcnt;
904	uint8_t mbuf_flags;
905};
906
907struct sctp_cwnd_log {
908	uint64_t time_event;
909	uint8_t from;
910	uint8_t event_type;
911	uint8_t resv[2];
912	union {
913		struct sctp_log_closing close;
914		struct sctp_blk_args blk;
915		struct sctp_cwnd_args cwnd;
916		struct sctp_str_log strlog;
917		struct sctp_fr_log fr;
918		struct sctp_fr_map map;
919		struct sctp_rwnd_log rwnd;
920		struct sctp_mbcnt_log mbcnt;
921		struct sctp_sack_log sack;
922		struct sctp_lock_log lock;
923		struct sctp_rto_log rto;
924		struct sctp_sb_log sb;
925		struct sctp_nagle_log nagle;
926		struct sctp_sbwake_log wake;
927		struct sctp_mbuf_log mb;
928		struct sctp_misc_info misc;
929	}     x;
930};
931
932struct sctp_cwnd_log_req {
933	int32_t num_in_log;	/* Number in log */
934	int32_t num_ret;	/* Number returned */
935	int32_t start_at;	/* start at this one */
936	int32_t end_at;		/* end at this one */
937	struct sctp_cwnd_log log[];
938};
939
940struct sctp_timeval {
941	uint32_t tv_sec;
942	uint32_t tv_usec;
943};
944
945struct sctpstat {
946	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
947							 * (TimeStamp) */
948	/* MIB according to RFC 3873 */
949	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
950	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
951	uint32_t sctps_restartestab;
952	uint32_t sctps_collisionestab;
953	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
954	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
955	uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
956	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
957	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
958	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
959	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
960	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
961	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
962	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
963	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
964	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
965	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
966	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
967	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
968
969	/* input statistics: */
970	uint32_t sctps_recvpackets;	/* total input packets        */
971	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
972	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
973	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
974	uint32_t sctps_recvdata;/* total input DATA chunks    */
975	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
976	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
977	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
978	uint32_t sctps_recvecne;/* total input ECNE chunks    */
979	uint32_t sctps_recvauth;/* total input AUTH chunks    */
980	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
981	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
982					 * received */
983	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
984					 * received */
985	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
986	uint32_t sctps_recvexpress;	/* total fast path receives all one
987					 * chunk */
988	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
989	uint32_t sctps_recvnocrc;
990	uint32_t sctps_recvswcrc;
991	uint32_t sctps_recvhwcrc;
992
993	/* output statistics: */
994	uint32_t sctps_sendpackets;	/* total output packets       */
995	uint32_t sctps_sendsacks;	/* total output SACKs         */
996	uint32_t sctps_senddata;/* total output DATA chunks   */
997	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
998					 * chunks */
999	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
1000					 * DATA chunks */
1001	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
1002						 * more than once to same
1003						 * chunk (u-del multi-fr
1004						 * algo). */
1005	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
1006	uint32_t sctps_sendecne;/* total output ECNE chunks    */
1007	uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
1008	uint32_t sctps_senderrors;	/* ip_output error counter */
1009	uint32_t sctps_sendnocrc;
1010	uint32_t sctps_sendswcrc;
1011	uint32_t sctps_sendhwcrc;
1012	/* PCKDROPREP statistics: */
1013	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
1014	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
1015	uint32_t sctps_pdrpmbda;/* P-drops with data */
1016	uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
1017	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
1018					 * only */
1019	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
1020	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
1021	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
1022					 * said break */
1023	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
1024	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
1025	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
1026	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
1027	uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
1028	uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
1029	/* timeouts */
1030	uint32_t sctps_timoiterator;	/* Number of iterator timers that
1031					 * fired */
1032	uint32_t sctps_timodata;/* Number of T3 data time outs */
1033	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
1034					 * that fired */
1035	uint32_t sctps_timoinit;/* Number of INIT timers that fired */
1036	uint32_t sctps_timosack;/* Number of sack timers that fired */
1037	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
1038					 * fired */
1039	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
1040					 * fired */
1041	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
1042					 * fired */
1043	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
1044					 * its cookie secret */
1045	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
1046	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
1047					 * fired */
1048	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
1049						 * timers that fired */
1050	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
1051					 * fired */
1052	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
1053					 * fired */
1054	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
1055					 * fired */
1056	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
1057					 * timer fired */
1058	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
1059					 * fired */
1060	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
1061	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
1062	/* former early FR counters */
1063	uint32_t sctps_spare[11];
1064	/* others */
1065	uint32_t sctps_hdrops;	/* packet shorter than header */
1066	uint32_t sctps_badsum;	/* checksum error             */
1067	uint32_t sctps_noport;	/* no endpoint for port       */
1068	uint32_t sctps_badvtag;	/* bad v-tag                  */
1069	uint32_t sctps_badsid;	/* bad SID                    */
1070	uint32_t sctps_nomem;	/* no memory                  */
1071	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
1072						 * RTT window */
1073	uint32_t sctps_markedretrans;
1074	uint32_t sctps_naglesent;	/* nagle allowed sending      */
1075	uint32_t sctps_naglequeued;	/* nagle doesn't allow sending */
1076	uint32_t sctps_maxburstqueued;	/* max burst doesn't allow sending */
1077	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
1078					 * interface ring buffer OR we had a
1079					 * send error and are queuing one
1080					 * send. */
1081	uint32_t sctps_windowprobed;	/* total number of window probes sent */
1082	uint32_t sctps_lowlevelerr;	/* total times an output error causes
1083					 * us to clamp down on next user send. */
1084	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
1085					 * caused from a user send from a user
1086					 * invoked send not a sack response */
1087	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
1088					 * chunk limit reached */
1089	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
1090					 * limit reached */
1091	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
1092					 * cwnd */
1093	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
1094	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
1095	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
1096					 * of user data on primary */
1097	uint32_t sctps_cmt_randry;	/* Same for above */
1098	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
1099	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
1100	uint32_t sctps_sends_with_flags;	/* number of sends with
1101						 * sinfo_flags !=0 */
1102	uint32_t sctps_sends_with_unord;	/* number of unordered sends */
1103	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
1104	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
1105						 * flag set */
1106	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
1107						 * drain called */
1108	uint32_t sctps_protocol_drains_done;	/* number of times we did a
1109						 * protocol drain */
1110	uint32_t sctps_read_peeks;	/* Number of times recv was called
1111					 * with peek */
1112	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
1113	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
1114	uint32_t sctps_left_abandon;	/* Number of unread messages abandoned
1115					 * by close */
1116	uint32_t sctps_send_burst_avoid;	/* Unused */
1117	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
1118					 * max burst inflight to net */
1119	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
1120					 * fwd-tsn's */
1121	uint32_t sctps_queue_upd_ecne;	/* Number of times we queued or
1122					 * updated an ECN chunk on send queue */
1123	uint32_t sctps_reserved[31];	/* Future ABI compat - remove int's
1124					 * from here when adding new */
1125};
1126
1127#define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
1128#define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
1129#if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1130#define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
1131#define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
1132#else
1133#define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
1134#define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
1135#endif
1136/* The following macros are for handling MIB values, */
1137#define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
1138#define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
1139#define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
1140#define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
1141#define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
1142#define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
1143
1144union sctp_sockstore {
1145	struct sockaddr_in sin;
1146	struct sockaddr_in6 sin6;
1147	struct sockaddr sa;
1148};
1149
1150
1151/***********************************/
1152/* And something for us old timers */
1153/***********************************/
1154
1155#ifndef ntohll
1156#include <sys/endian.h>
1157#define ntohll(x) be64toh(x)
1158#endif
1159
1160#ifndef htonll
1161#include <sys/endian.h>
1162#define htonll(x) htobe64(x)
1163#endif
1164/***********************************/
1165
1166
1167struct xsctp_inpcb {
1168	uint32_t last;
1169	uint32_t flags;
1170	uint64_t features;
1171	uint32_t total_sends;
1172	uint32_t total_recvs;
1173	uint32_t total_nospaces;
1174	uint32_t fragmentation_point;
1175	uint16_t local_port;
1176	uint16_t qlen_old;
1177	uint16_t maxqlen_old;
1178	void *socket;
1179	uint32_t qlen;
1180	uint32_t maxqlen;
1181#if defined(__LP64__)
1182	uint32_t extra_padding[27];	/* future */
1183#else
1184	uint32_t extra_padding[28];	/* future */
1185#endif
1186};
1187
1188struct xsctp_tcb {
1189	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
1190	uint32_t last;
1191	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
1192	uint32_t state;		/* sctpAssocEntry 8   */
1193	uint32_t in_streams;	/* sctpAssocEntry 9   */
1194	uint32_t out_streams;	/* sctpAssocEntry 10  */
1195	uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
1196	uint32_t primary_process;	/* sctpAssocEntry 12  */
1197	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
1198	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
1199	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
1200	uint32_t total_sends;
1201	uint32_t total_recvs;
1202	uint32_t local_tag;
1203	uint32_t remote_tag;
1204	uint32_t initial_tsn;
1205	uint32_t highest_tsn;
1206	uint32_t cumulative_tsn;
1207	uint32_t cumulative_tsn_ack;
1208	uint32_t mtu;
1209	uint32_t refcnt;
1210	uint16_t local_port;	/* sctpAssocEntry 3   */
1211	uint16_t remote_port;	/* sctpAssocEntry 4   */
1212	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
1213	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
1214	uint32_t peers_rwnd;
1215	sctp_assoc_t assoc_id;	/* sctpAssocEntry 1   */
1216	uint32_t extra_padding[32];	/* future */
1217};
1218
1219struct xsctp_laddr {
1220	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1221	uint32_t last;
1222	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1223	uint32_t extra_padding[32];	/* future */
1224};
1225
1226struct xsctp_raddr {
1227	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1228	uint32_t last;
1229	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1230	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1231	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1232	uint32_t error_counter;	/* */
1233	uint32_t cwnd;		/* */
1234	uint32_t flight_size;	/* */
1235	uint32_t mtu;		/* */
1236	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1237	uint8_t confirmed;	/* */
1238	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1239	uint8_t potentially_failed;
1240	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1241	uint32_t rtt;
1242	uint32_t heartbeat_interval;
1243	uint32_t ssthresh;
1244	uint32_t extra_padding[30];	/* future */
1245};
1246
1247#define SCTP_MAX_LOGGING_SIZE 30000
1248#define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1249
1250struct sctp_log_entry {
1251	uint64_t timestamp;
1252	uint32_t subsys;
1253	uint32_t padding;
1254	uint32_t params[SCTP_TRACE_PARAMS];
1255};
1256
1257struct sctp_log {
1258	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1259	uint32_t index;
1260	uint32_t padding;
1261};
1262
1263/*
1264 * Kernel defined for sctp_send
1265 */
1266#if defined(_KERNEL) || defined(__Userspace__)
1267int
1268sctp_lower_sosend(struct socket *so,
1269    struct sockaddr *addr,
1270    struct uio *uio,
1271    struct mbuf *i_pak,
1272    struct mbuf *control,
1273    int flags,
1274    struct sctp_sndrcvinfo *srcv
1275    ,struct thread *p
1276);
1277
1278int
1279sctp_sorecvmsg(struct socket *so,
1280    struct uio *uio,
1281    struct mbuf **mp,
1282    struct sockaddr *from,
1283    int fromlen,
1284    int *msg_flags,
1285    struct sctp_sndrcvinfo *sinfo,
1286    int filling_sinfo);
1287
1288#endif
1289
1290/*
1291 * API system calls
1292 */
1293#if !(defined(_KERNEL)) && !(defined(__Userspace__))
1294
1295__BEGIN_DECLS
1296int sctp_peeloff(int, sctp_assoc_t);
1297int sctp_bindx(int, struct sockaddr *, int, int);
1298int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
1299int sctp_getaddrlen(sa_family_t);
1300int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
1301void sctp_freepaddrs(struct sockaddr *);
1302int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
1303void sctp_freeladdrs(struct sockaddr *);
1304int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
1305
1306/* deprecated */
1307ssize_t
1308sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
1309    socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1310
1311/* deprecated */
1312ssize_t
1313sctp_send(int, const void *, size_t,
1314    const struct sctp_sndrcvinfo *, int);
1315
1316/* deprecated */
1317ssize_t
1318sctp_sendx(int, const void *, size_t, struct sockaddr *,
1319    int, struct sctp_sndrcvinfo *, int);
1320
1321/* deprecated */
1322ssize_t
1323sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
1324    int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1325
1326sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
1327
1328/* deprecated */
1329ssize_t
1330sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
1331    struct sctp_sndrcvinfo *, int *);
1332
1333ssize_t
1334sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
1335    int, void *, socklen_t, unsigned int, int);
1336
1337ssize_t
1338sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
1339    socklen_t *, void *, socklen_t *, unsigned int *, int *);
1340
1341__END_DECLS
1342
1343#endif				/* !_KERNEL */
1344#endif				/* !__sctp_uio_h__ */
1345