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