sctp_uio.h revision 254672
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: head/sys/netinet/sctp_uio.h 254672 2013-08-22 20:29:57Z 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;
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 byte 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
258#define PR_SCTP_POLICY(x)         ((x) & 0x0f)
259#define PR_SCTP_ENABLED(x)        (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE)
260#define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
261#define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
262#define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
263#define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)
264/* Stat's */
265struct sctp_pcbinfo {
266	uint32_t ep_count;
267	uint32_t asoc_count;
268	uint32_t laddr_count;
269	uint32_t raddr_count;
270	uint32_t chk_count;
271	uint32_t readq_count;
272	uint32_t free_chunks;
273	uint32_t stream_oque;
274};
275
276struct sctp_sockstat {
277	sctp_assoc_t ss_assoc_id;
278	uint32_t ss_total_sndbuf;
279	uint32_t ss_total_recv_buf;
280};
281
282/*
283 * notification event structures
284 */
285
286/*
287 * association change event
288 */
289struct sctp_assoc_change {
290	uint16_t sac_type;
291	uint16_t sac_flags;
292	uint32_t sac_length;
293	uint16_t sac_state;
294	uint16_t sac_error;
295	uint16_t sac_outbound_streams;
296	uint16_t sac_inbound_streams;
297	sctp_assoc_t sac_assoc_id;
298	uint8_t sac_info[];
299};
300
301/* sac_state values */
302#define SCTP_COMM_UP            0x0001
303#define SCTP_COMM_LOST          0x0002
304#define SCTP_RESTART            0x0003
305#define SCTP_SHUTDOWN_COMP      0x0004
306#define SCTP_CANT_STR_ASSOC     0x0005
307
308/* sac_info values */
309#define SCTP_ASSOC_SUPPORTS_PR        0x01
310#define SCTP_ASSOC_SUPPORTS_AUTH      0x02
311#define SCTP_ASSOC_SUPPORTS_ASCONF    0x03
312#define SCTP_ASSOC_SUPPORTS_MULTIBUF  0x04
313#define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05
314#define SCTP_ASSOC_SUPPORTS_MAX       0x05
315/*
316 * Address event
317 */
318struct sctp_paddr_change {
319	uint16_t spc_type;
320	uint16_t spc_flags;
321	uint32_t spc_length;
322	struct sockaddr_storage spc_aaddr;
323	uint32_t spc_state;
324	uint32_t spc_error;
325	sctp_assoc_t spc_assoc_id;
326	uint8_t spc_padding[4];
327};
328
329/* paddr state values */
330#define SCTP_ADDR_AVAILABLE	0x0001
331#define SCTP_ADDR_UNREACHABLE	0x0002
332#define SCTP_ADDR_REMOVED	0x0003
333#define SCTP_ADDR_ADDED		0x0004
334#define SCTP_ADDR_MADE_PRIM	0x0005
335#define SCTP_ADDR_CONFIRMED	0x0006
336
337#define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
338#define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE nor
339					 * SCTP_ADDR_UNCONFIRMED */
340#define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
341
342/* remote error events */
343struct sctp_remote_error {
344	uint16_t sre_type;
345	uint16_t sre_flags;
346	uint32_t sre_length;
347	uint16_t sre_error;
348	sctp_assoc_t sre_assoc_id;
349	uint8_t sre_data[4];
350};
351
352/* data send failure event (deprecated) */
353struct sctp_send_failed {
354	uint16_t ssf_type;
355	uint16_t ssf_flags;
356	uint32_t ssf_length;
357	uint32_t ssf_error;
358	struct sctp_sndrcvinfo ssf_info;
359	sctp_assoc_t ssf_assoc_id;
360	uint8_t ssf_data[];
361};
362
363/* data send failure event (not deprecated) */
364struct sctp_send_failed_event {
365	uint16_t ssfe_type;
366	uint16_t ssfe_flags;
367	uint32_t ssfe_length;
368	uint32_t ssfe_error;
369	struct sctp_sndinfo ssfe_info;
370	sctp_assoc_t ssfe_assoc_id;
371	uint8_t ssfe_data[];
372};
373
374/* flag that indicates state of data */
375#define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
376#define SCTP_DATA_SENT		0x0002	/* on wire at failure */
377
378/* shutdown event */
379struct sctp_shutdown_event {
380	uint16_t sse_type;
381	uint16_t sse_flags;
382	uint32_t sse_length;
383	sctp_assoc_t sse_assoc_id;
384};
385
386/* Adaptation layer indication stuff */
387struct sctp_adaptation_event {
388	uint16_t sai_type;
389	uint16_t sai_flags;
390	uint32_t sai_length;
391	uint32_t sai_adaptation_ind;
392	sctp_assoc_t sai_assoc_id;
393};
394
395struct sctp_setadaptation {
396	uint32_t ssb_adaptation_ind;
397};
398
399/* compatible old spelling */
400struct sctp_adaption_event {
401	uint16_t sai_type;
402	uint16_t sai_flags;
403	uint32_t sai_length;
404	uint32_t sai_adaption_ind;
405	sctp_assoc_t sai_assoc_id;
406};
407
408struct sctp_setadaption {
409	uint32_t ssb_adaption_ind;
410};
411
412
413/*
414 * Partial Delivery API event
415 */
416struct sctp_pdapi_event {
417	uint16_t pdapi_type;
418	uint16_t pdapi_flags;
419	uint32_t pdapi_length;
420	uint32_t pdapi_indication;
421	uint16_t pdapi_stream;
422	uint16_t pdapi_seq;
423	sctp_assoc_t pdapi_assoc_id;
424};
425
426/* indication values */
427#define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
428
429
430/*
431 * authentication key event
432 */
433struct sctp_authkey_event {
434	uint16_t auth_type;
435	uint16_t auth_flags;
436	uint32_t auth_length;
437	uint16_t auth_keynumber;
438	uint16_t auth_altkeynumber;
439	uint32_t auth_indication;
440	sctp_assoc_t auth_assoc_id;
441};
442
443/* indication values */
444#define SCTP_AUTH_NEW_KEY	0x0001
445#define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY
446#define SCTP_AUTH_NO_AUTH	0x0002
447#define SCTP_AUTH_FREE_KEY	0x0003
448
449
450struct sctp_sender_dry_event {
451	uint16_t sender_dry_type;
452	uint16_t sender_dry_flags;
453	uint32_t sender_dry_length;
454	sctp_assoc_t sender_dry_assoc_id;
455};
456
457
458/*
459 * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
460 */
461struct sctp_stream_reset_event {
462	uint16_t strreset_type;
463	uint16_t strreset_flags;
464	uint32_t strreset_length;
465	sctp_assoc_t strreset_assoc_id;
466	uint16_t strreset_stream_list[];
467};
468
469/* flags in stream_reset_event (strreset_flags) */
470#define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
471#define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
472#define SCTP_STREAM_RESET_DENIED        0x0004
473#define SCTP_STREAM_RESET_FAILED        0x0008
474
475/*
476 * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
477 */
478struct sctp_assoc_reset_event {
479	uint16_t assocreset_type;
480	uint16_t assocreset_flags;
481	uint32_t assocreset_length;
482	sctp_assoc_t assocreset_assoc_id;
483	uint32_t assocreset_local_tsn;
484	uint32_t assocreset_remote_tsn;
485};
486
487#define SCTP_ASSOC_RESET_DENIED		0x0004
488#define SCTP_ASSOC_RESET_FAILED		0x0008
489
490/*
491 * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
492 */
493struct sctp_stream_change_event {
494	uint16_t strchange_type;
495	uint16_t strchange_flags;
496	uint32_t strchange_length;
497	sctp_assoc_t strchange_assoc_id;
498	uint16_t strchange_instrms;
499	uint16_t strchange_outstrms;
500};
501
502#define SCTP_STREAM_CHANGE_DENIED	0x0004
503#define SCTP_STREAM_CHANGE_FAILED	0x0008
504
505
506/* SCTP notification event */
507struct sctp_tlv {
508	uint16_t sn_type;
509	uint16_t sn_flags;
510	uint32_t sn_length;
511};
512
513union sctp_notification {
514	struct sctp_tlv sn_header;
515	struct sctp_assoc_change sn_assoc_change;
516	struct sctp_paddr_change sn_paddr_change;
517	struct sctp_remote_error sn_remote_error;
518	struct sctp_send_failed sn_send_failed;
519	struct sctp_shutdown_event sn_shutdown_event;
520	struct sctp_adaptation_event sn_adaptation_event;
521	/* compatibility same as above */
522	struct sctp_adaption_event sn_adaption_event;
523	struct sctp_pdapi_event sn_pdapi_event;
524	struct sctp_authkey_event sn_auth_event;
525	struct sctp_sender_dry_event sn_sender_dry_event;
526	struct sctp_send_failed_event sn_send_failed_event;
527	struct sctp_stream_reset_event sn_strreset_event;
528	struct sctp_assoc_reset_event sn_assocreset_event;
529	struct sctp_stream_change_event sn_strchange_event;
530};
531
532/* notification types */
533#define SCTP_ASSOC_CHANGE                       0x0001
534#define SCTP_PEER_ADDR_CHANGE                   0x0002
535#define SCTP_REMOTE_ERROR                       0x0003
536#define SCTP_SEND_FAILED                        0x0004
537#define SCTP_SHUTDOWN_EVENT                     0x0005
538#define SCTP_ADAPTATION_INDICATION              0x0006
539/* same as above */
540#define SCTP_ADAPTION_INDICATION                0x0006
541#define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
542#define SCTP_AUTHENTICATION_EVENT               0x0008
543#define SCTP_STREAM_RESET_EVENT                 0x0009
544#define SCTP_SENDER_DRY_EVENT                   0x000a
545#define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b	/* we don't send this */
546#define SCTP_ASSOC_RESET_EVENT                  0x000c
547#define SCTP_STREAM_CHANGE_EVENT                0x000d
548#define SCTP_SEND_FAILED_EVENT                  0x000e
549/*
550 * socket option structs
551 */
552
553struct sctp_paddrparams {
554	struct sockaddr_storage spp_address;
555	sctp_assoc_t spp_assoc_id;
556	uint32_t spp_hbinterval;
557	uint32_t spp_pathmtu;
558	uint32_t spp_flags;
559	uint32_t spp_ipv6_flowlabel;
560	uint16_t spp_pathmaxrxt;
561	uint8_t spp_dscp;
562};
563
564#define spp_ipv4_tos spp_dscp
565
566#define SPP_HB_ENABLE		0x00000001
567#define SPP_HB_DISABLE		0x00000002
568#define SPP_HB_DEMAND		0x00000004
569#define SPP_PMTUD_ENABLE	0x00000008
570#define SPP_PMTUD_DISABLE	0x00000010
571#define SPP_HB_TIME_IS_ZERO     0x00000080
572#define SPP_IPV6_FLOWLABEL      0x00000100
573#define SPP_DSCP                0x00000200
574#define SPP_IPV4_TOS            SPP_DSCP
575
576struct sctp_paddrthlds {
577	struct sockaddr_storage spt_address;
578	sctp_assoc_t spt_assoc_id;
579	uint16_t spt_pathmaxrxt;
580	uint16_t spt_pathpfthld;
581};
582
583struct sctp_paddrinfo {
584	struct sockaddr_storage spinfo_address;
585	sctp_assoc_t spinfo_assoc_id;
586	int32_t spinfo_state;
587	uint32_t spinfo_cwnd;
588	uint32_t spinfo_srtt;
589	uint32_t spinfo_rto;
590	uint32_t spinfo_mtu;
591};
592
593struct sctp_rtoinfo {
594	sctp_assoc_t srto_assoc_id;
595	uint32_t srto_initial;
596	uint32_t srto_max;
597	uint32_t srto_min;
598};
599
600struct sctp_assocparams {
601	sctp_assoc_t sasoc_assoc_id;
602	uint32_t sasoc_peer_rwnd;
603	uint32_t sasoc_local_rwnd;
604	uint32_t sasoc_cookie_life;
605	uint16_t sasoc_asocmaxrxt;
606	uint16_t sasoc_number_peer_destinations;
607};
608
609struct sctp_setprim {
610	struct sockaddr_storage ssp_addr;
611	sctp_assoc_t ssp_assoc_id;
612	uint8_t ssp_padding[4];
613};
614
615struct sctp_setpeerprim {
616	struct sockaddr_storage sspp_addr;
617	sctp_assoc_t sspp_assoc_id;
618	uint8_t sspp_padding[4];
619};
620
621struct sctp_getaddresses {
622	sctp_assoc_t sget_assoc_id;
623	/* addr is filled in for N * sockaddr_storage */
624	struct sockaddr addr[1];
625};
626
627struct sctp_status {
628	sctp_assoc_t sstat_assoc_id;
629	int32_t sstat_state;
630	uint32_t sstat_rwnd;
631	uint16_t sstat_unackdata;
632	uint16_t sstat_penddata;
633	uint16_t sstat_instrms;
634	uint16_t sstat_outstrms;
635	uint32_t sstat_fragmentation_point;
636	struct sctp_paddrinfo sstat_primary;
637};
638
639/*
640 * AUTHENTICATION support
641 */
642/* SCTP_AUTH_CHUNK */
643struct sctp_authchunk {
644	uint8_t sauth_chunk;
645};
646
647/* SCTP_AUTH_KEY */
648struct sctp_authkey {
649	sctp_assoc_t sca_assoc_id;
650	uint16_t sca_keynumber;
651	uint16_t sca_keylength;
652	uint8_t sca_key[];
653};
654
655/* SCTP_HMAC_IDENT */
656struct sctp_hmacalgo {
657	uint32_t shmac_number_of_idents;
658	uint16_t shmac_idents[];
659};
660
661/* AUTH hmac_id */
662#define SCTP_AUTH_HMAC_ID_RSVD		0x0000
663#define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
664#define SCTP_AUTH_HMAC_ID_SHA256	0x0003
665#define SCTP_AUTH_HMAC_ID_SHA224	0x0004
666#define SCTP_AUTH_HMAC_ID_SHA384	0x0005
667#define SCTP_AUTH_HMAC_ID_SHA512	0x0006
668
669
670/* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
671struct sctp_authkeyid {
672	sctp_assoc_t scact_assoc_id;
673	uint16_t scact_keynumber;
674};
675
676/* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
677struct sctp_authchunks {
678	sctp_assoc_t gauth_assoc_id;
679	uint32_t gauth_number_of_chunks;
680	uint8_t gauth_chunks[];
681};
682
683struct sctp_assoc_value {
684	sctp_assoc_t assoc_id;
685	uint32_t assoc_value;
686};
687
688struct sctp_cc_option {
689	int option;
690	struct sctp_assoc_value aid_value;
691};
692
693struct sctp_stream_value {
694	sctp_assoc_t assoc_id;
695	uint16_t stream_id;
696	uint16_t stream_value;
697};
698
699struct sctp_assoc_ids {
700	uint32_t gaids_number_of_ids;
701	sctp_assoc_t gaids_assoc_id[];
702};
703
704struct sctp_sack_info {
705	sctp_assoc_t sack_assoc_id;
706	uint32_t sack_delay;
707	uint32_t sack_freq;
708};
709
710struct sctp_timeouts {
711	sctp_assoc_t stimo_assoc_id;
712	uint32_t stimo_init;
713	uint32_t stimo_data;
714	uint32_t stimo_sack;
715	uint32_t stimo_shutdown;
716	uint32_t stimo_heartbeat;
717	uint32_t stimo_cookie;
718	uint32_t stimo_shutdownack;
719};
720
721struct sctp_udpencaps {
722	struct sockaddr_storage sue_address;
723	sctp_assoc_t sue_assoc_id;
724	uint16_t sue_port;
725};
726
727struct sctp_cwnd_args {
728	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
729	uint32_t cwnd_new_value;/* cwnd in k */
730	uint32_t pseudo_cumack;
731	uint16_t inflight;	/* flightsize in k */
732	uint16_t cwnd_augment;	/* increment to it */
733	uint8_t meets_pseudo_cumack;
734	uint8_t need_new_pseudo_cumack;
735	uint8_t cnt_in_send;
736	uint8_t cnt_in_str;
737};
738
739struct sctp_blk_args {
740	uint32_t onsb;		/* in 1k bytes */
741	uint32_t sndlen;	/* len of send being attempted */
742	uint32_t peer_rwnd;	/* rwnd of peer */
743	uint16_t send_sent_qcnt;/* chnk cnt */
744	uint16_t stream_qcnt;	/* chnk cnt */
745	uint16_t chunks_on_oque;/* chunks out */
746	uint16_t flight_size;	/* flight size in k */
747};
748
749/*
750 * Max we can reset in one setting, note this is dictated not by the define
751 * but the size of a mbuf cluster so don't change this define and think you
752 * can specify more. You must do multiple resets if you want to reset more
753 * than SCTP_MAX_EXPLICIT_STR_RESET.
754 */
755#define SCTP_MAX_EXPLICT_STR_RESET   1000
756
757struct sctp_reset_streams {
758	sctp_assoc_t srs_assoc_id;
759	uint16_t srs_flags;
760	uint16_t srs_number_streams;	/* 0 == ALL */
761	uint16_t srs_stream_list[];	/* list if strrst_num_streams is not 0 */
762};
763
764struct sctp_add_streams {
765	sctp_assoc_t sas_assoc_id;
766	uint16_t sas_instrms;
767	uint16_t sas_outstrms;
768};
769
770struct sctp_get_nonce_values {
771	sctp_assoc_t gn_assoc_id;
772	uint32_t gn_peers_tag;
773	uint32_t gn_local_tag;
774};
775
776/* Debugging logs */
777struct sctp_str_log {
778	void *stcb;		/* FIXME: LP64 issue */
779	uint32_t n_tsn;
780	uint32_t e_tsn;
781	uint16_t n_sseq;
782	uint16_t e_sseq;
783	uint16_t strm;
784};
785
786struct sctp_sb_log {
787	void *stcb;		/* FIXME: LP64 issue */
788	uint32_t so_sbcc;
789	uint32_t stcb_sbcc;
790	uint32_t incr;
791};
792
793struct sctp_fr_log {
794	uint32_t largest_tsn;
795	uint32_t largest_new_tsn;
796	uint32_t tsn;
797};
798
799struct sctp_fr_map {
800	uint32_t base;
801	uint32_t cum;
802	uint32_t high;
803};
804
805struct sctp_rwnd_log {
806	uint32_t rwnd;
807	uint32_t send_size;
808	uint32_t overhead;
809	uint32_t new_rwnd;
810};
811
812struct sctp_mbcnt_log {
813	uint32_t total_queue_size;
814	uint32_t size_change;
815	uint32_t total_queue_mb_size;
816	uint32_t mbcnt_change;
817};
818
819struct sctp_sack_log {
820	uint32_t cumack;
821	uint32_t oldcumack;
822	uint32_t tsn;
823	uint16_t numGaps;
824	uint16_t numDups;
825};
826
827struct sctp_lock_log {
828	void *sock;		/* FIXME: LP64 issue */
829	void *inp;		/* FIXME: LP64 issue */
830	uint8_t tcb_lock;
831	uint8_t inp_lock;
832	uint8_t info_lock;
833	uint8_t sock_lock;
834	uint8_t sockrcvbuf_lock;
835	uint8_t socksndbuf_lock;
836	uint8_t create_lock;
837	uint8_t resv;
838};
839
840struct sctp_rto_log {
841	void *net;		/* FIXME: LP64 issue */
842	uint32_t rtt;
843};
844
845struct sctp_nagle_log {
846	void *stcb;		/* FIXME: LP64 issue */
847	uint32_t total_flight;
848	uint32_t total_in_queue;
849	uint16_t count_in_queue;
850	uint16_t count_in_flight;
851};
852
853struct sctp_sbwake_log {
854	void *stcb;		/* FIXME: LP64 issue */
855	uint16_t send_q;
856	uint16_t sent_q;
857	uint16_t flight;
858	uint16_t wake_cnt;
859	uint8_t stream_qcnt;	/* chnk cnt */
860	uint8_t chunks_on_oque;	/* chunks out */
861	uint8_t sbflags;
862	uint8_t sctpflags;
863};
864
865struct sctp_misc_info {
866	uint32_t log1;
867	uint32_t log2;
868	uint32_t log3;
869	uint32_t log4;
870};
871
872struct sctp_log_closing {
873	void *inp;		/* FIXME: LP64 issue */
874	void *stcb;		/* FIXME: LP64 issue */
875	uint32_t sctp_flags;
876	uint16_t state;
877	int16_t loc;
878};
879
880struct sctp_mbuf_log {
881	struct mbuf *mp;	/* FIXME: LP64 issue */
882	caddr_t ext;
883	caddr_t data;
884	uint16_t size;
885	uint8_t refcnt;
886	uint8_t mbuf_flags;
887};
888
889struct sctp_cwnd_log {
890	uint64_t time_event;
891	uint8_t from;
892	uint8_t event_type;
893	uint8_t resv[2];
894	union {
895		struct sctp_log_closing close;
896		struct sctp_blk_args blk;
897		struct sctp_cwnd_args cwnd;
898		struct sctp_str_log strlog;
899		struct sctp_fr_log fr;
900		struct sctp_fr_map map;
901		struct sctp_rwnd_log rwnd;
902		struct sctp_mbcnt_log mbcnt;
903		struct sctp_sack_log sack;
904		struct sctp_lock_log lock;
905		struct sctp_rto_log rto;
906		struct sctp_sb_log sb;
907		struct sctp_nagle_log nagle;
908		struct sctp_sbwake_log wake;
909		struct sctp_mbuf_log mb;
910		struct sctp_misc_info misc;
911	}     x;
912};
913
914struct sctp_cwnd_log_req {
915	int32_t num_in_log;	/* Number in log */
916	int32_t num_ret;	/* Number returned */
917	int32_t start_at;	/* start at this one */
918	int32_t end_at;		/* end at this one */
919	struct sctp_cwnd_log log[];
920};
921
922struct sctp_timeval {
923	uint32_t tv_sec;
924	uint32_t tv_usec;
925};
926
927struct sctpstat {
928	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
929							 * (TimeStamp) */
930	/* MIB according to RFC 3873 */
931	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
932	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
933	uint32_t sctps_restartestab;
934	uint32_t sctps_collisionestab;
935	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
936	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
937	uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
938	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
939	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
940	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
941	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
942	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
943	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
944	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
945	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
946	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
947	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
948	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
949	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
950
951	/* input statistics: */
952	uint32_t sctps_recvpackets;	/* total input packets        */
953	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
954	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
955	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
956	uint32_t sctps_recvdata;/* total input DATA chunks    */
957	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
958	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
959	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
960	uint32_t sctps_recvecne;/* total input ECNE chunks    */
961	uint32_t sctps_recvauth;/* total input AUTH chunks    */
962	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
963	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
964					 * received */
965	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
966					 * received */
967	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
968	uint32_t sctps_recvexpress;	/* total fast path receives all one
969					 * chunk */
970	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
971	uint32_t sctps_recvnocrc;
972	uint32_t sctps_recvswcrc;
973	uint32_t sctps_recvhwcrc;
974
975	/* output statistics: */
976	uint32_t sctps_sendpackets;	/* total output packets       */
977	uint32_t sctps_sendsacks;	/* total output SACKs         */
978	uint32_t sctps_senddata;/* total output DATA chunks   */
979	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
980					 * chunks */
981	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
982					 * DATA chunks */
983	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
984						 * more than once to same
985						 * chunk (u-del multi-fr
986						 * algo). */
987	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
988	uint32_t sctps_sendecne;/* total output ECNE chunks    */
989	uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
990	uint32_t sctps_senderrors;	/* ip_output error counter */
991	uint32_t sctps_sendnocrc;
992	uint32_t sctps_sendswcrc;
993	uint32_t sctps_sendhwcrc;
994	/* PCKDROPREP statistics: */
995	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
996	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
997	uint32_t sctps_pdrpmbda;/* P-drops with data */
998	uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
999	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
1000					 * only */
1001	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
1002	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
1003	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
1004					 * said break */
1005	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
1006	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
1007	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
1008	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
1009	uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
1010	uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
1011	/* timeouts */
1012	uint32_t sctps_timoiterator;	/* Number of iterator timers that
1013					 * fired */
1014	uint32_t sctps_timodata;/* Number of T3 data time outs */
1015	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
1016					 * that fired */
1017	uint32_t sctps_timoinit;/* Number of INIT timers that fired */
1018	uint32_t sctps_timosack;/* Number of sack timers that fired */
1019	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
1020					 * fired */
1021	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
1022					 * fired */
1023	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
1024					 * fired */
1025	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
1026					 * its cookie secret */
1027	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
1028	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
1029					 * fired */
1030	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
1031						 * timers that fired */
1032	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
1033					 * fired */
1034	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
1035					 * fired */
1036	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
1037					 * fired */
1038	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
1039					 * timer fired */
1040	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
1041					 * fired */
1042	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
1043	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
1044	/* former early FR counters */
1045	uint32_t sctps_spare[11];
1046	/* others */
1047	uint32_t sctps_hdrops;	/* packet shorter than header */
1048	uint32_t sctps_badsum;	/* checksum error             */
1049	uint32_t sctps_noport;	/* no endpoint for port       */
1050	uint32_t sctps_badvtag;	/* bad v-tag                  */
1051	uint32_t sctps_badsid;	/* bad SID                    */
1052	uint32_t sctps_nomem;	/* no memory                  */
1053	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
1054						 * RTT window */
1055	uint32_t sctps_markedretrans;
1056	uint32_t sctps_naglesent;	/* nagle allowed sending      */
1057	uint32_t sctps_naglequeued;	/* nagle doesn't allow sending */
1058	uint32_t sctps_maxburstqueued;	/* max burst doesn't allow sending */
1059	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
1060					 * interface ring buffer OR we had a
1061					 * send error and are queuing one
1062					 * send. */
1063	uint32_t sctps_windowprobed;	/* total number of window probes sent */
1064	uint32_t sctps_lowlevelerr;	/* total times an output error causes
1065					 * us to clamp down on next user send. */
1066	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
1067					 * caused from a user send from a user
1068					 * invoked send not a sack response */
1069	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
1070					 * chunk limit reached */
1071	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
1072					 * limit reached */
1073	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
1074					 * cwnd */
1075	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
1076	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
1077	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
1078					 * of user data on primary */
1079	uint32_t sctps_cmt_randry;	/* Same for above */
1080	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
1081	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
1082	uint32_t sctps_sends_with_flags;	/* number of sends with
1083						 * sinfo_flags !=0 */
1084	uint32_t sctps_sends_with_unord;	/* number of unordered sends */
1085	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
1086	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
1087						 * flag set */
1088	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
1089						 * drain called */
1090	uint32_t sctps_protocol_drains_done;	/* number of times we did a
1091						 * protocol drain */
1092	uint32_t sctps_read_peeks;	/* Number of times recv was called
1093					 * with peek */
1094	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
1095	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
1096	uint32_t sctps_left_abandon;	/* Number of unread messages abandoned
1097					 * by close */
1098	uint32_t sctps_send_burst_avoid;	/* Unused */
1099	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
1100					 * max burst inflight to net */
1101	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
1102					 * fwd-tsn's */
1103	uint32_t sctps_queue_upd_ecne;	/* Number of times we queued or
1104					 * updated an ECN chunk on send queue */
1105	uint32_t sctps_reserved[31];	/* Future ABI compat - remove int's
1106					 * from here when adding new */
1107};
1108
1109#define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
1110#define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
1111#if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1112#define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
1113#define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
1114#else
1115#define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
1116#define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
1117#endif
1118/* The following macros are for handling MIB values, */
1119#define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
1120#define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
1121#define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
1122#define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
1123#define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
1124#define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
1125
1126union sctp_sockstore {
1127	struct sockaddr_in sin;
1128	struct sockaddr_in6 sin6;
1129	struct sockaddr sa;
1130};
1131
1132
1133/***********************************/
1134/* And something for us old timers */
1135/***********************************/
1136
1137#ifndef ntohll
1138#include <sys/endian.h>
1139#define ntohll(x) be64toh(x)
1140#endif
1141
1142#ifndef htonll
1143#include <sys/endian.h>
1144#define htonll(x) htobe64(x)
1145#endif
1146/***********************************/
1147
1148
1149struct xsctp_inpcb {
1150	uint32_t last;
1151	uint32_t flags;
1152	uint64_t features;
1153	uint32_t total_sends;
1154	uint32_t total_recvs;
1155	uint32_t total_nospaces;
1156	uint32_t fragmentation_point;
1157	uint16_t local_port;
1158	uint16_t qlen;
1159	uint16_t maxqlen;
1160	uint32_t extra_padding[31];	/* future */
1161};
1162
1163struct xsctp_tcb {
1164	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
1165	uint32_t last;
1166	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
1167	uint32_t state;		/* sctpAssocEntry 8   */
1168	uint32_t in_streams;	/* sctpAssocEntry 9   */
1169	uint32_t out_streams;	/* sctpAssocEntry 10  */
1170	uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
1171	uint32_t primary_process;	/* sctpAssocEntry 12  */
1172	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
1173	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
1174	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
1175	uint32_t total_sends;
1176	uint32_t total_recvs;
1177	uint32_t local_tag;
1178	uint32_t remote_tag;
1179	uint32_t initial_tsn;
1180	uint32_t highest_tsn;
1181	uint32_t cumulative_tsn;
1182	uint32_t cumulative_tsn_ack;
1183	uint32_t mtu;
1184	uint32_t refcnt;
1185	uint16_t local_port;	/* sctpAssocEntry 3   */
1186	uint16_t remote_port;	/* sctpAssocEntry 4   */
1187	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
1188	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
1189	uint32_t peers_rwnd;
1190	sctp_assoc_t assoc_id;	/* sctpAssocEntry 1   */
1191	uint32_t extra_padding[32];	/* future */
1192};
1193
1194struct xsctp_laddr {
1195	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1196	uint32_t last;
1197	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1198	uint32_t extra_padding[32];	/* future */
1199};
1200
1201struct xsctp_raddr {
1202	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1203	uint32_t last;
1204	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1205	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1206	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1207	uint32_t error_counter;	/* */
1208	uint32_t cwnd;		/* */
1209	uint32_t flight_size;	/* */
1210	uint32_t mtu;		/* */
1211	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1212	uint8_t confirmed;	/* */
1213	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1214	uint8_t potentially_failed;
1215	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1216	uint32_t rtt;
1217	uint32_t heartbeat_interval;
1218	uint32_t extra_padding[31];	/* future */
1219};
1220
1221#define SCTP_MAX_LOGGING_SIZE 30000
1222#define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1223
1224struct sctp_log_entry {
1225	uint64_t timestamp;
1226	uint32_t subsys;
1227	uint32_t padding;
1228	uint32_t params[SCTP_TRACE_PARAMS];
1229};
1230
1231struct sctp_log {
1232	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1233	uint32_t index;
1234	uint32_t padding;
1235};
1236
1237/*
1238 * Kernel defined for sctp_send
1239 */
1240#if defined(_KERNEL) || defined(__Userspace__)
1241int
1242sctp_lower_sosend(struct socket *so,
1243    struct sockaddr *addr,
1244    struct uio *uio,
1245    struct mbuf *i_pak,
1246    struct mbuf *control,
1247    int flags,
1248    struct sctp_sndrcvinfo *srcv
1249    ,struct thread *p
1250);
1251
1252int
1253sctp_sorecvmsg(struct socket *so,
1254    struct uio *uio,
1255    struct mbuf **mp,
1256    struct sockaddr *from,
1257    int fromlen,
1258    int *msg_flags,
1259    struct sctp_sndrcvinfo *sinfo,
1260    int filling_sinfo);
1261
1262#endif
1263
1264/*
1265 * API system calls
1266 */
1267#if !(defined(_KERNEL)) && !(defined(__Userspace__))
1268
1269__BEGIN_DECLS
1270int sctp_peeloff(int, sctp_assoc_t);
1271int sctp_bindx(int, struct sockaddr *, int, int);
1272int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
1273int sctp_getaddrlen(sa_family_t);
1274int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
1275void sctp_freepaddrs(struct sockaddr *);
1276int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
1277void sctp_freeladdrs(struct sockaddr *);
1278int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
1279
1280/* deprecated */
1281ssize_t
1282sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
1283    socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1284
1285/* deprecated */
1286ssize_t
1287sctp_send(int, const void *, size_t,
1288    const struct sctp_sndrcvinfo *, int);
1289
1290/* deprecated */
1291ssize_t
1292sctp_sendx(int, const void *, size_t, struct sockaddr *,
1293    int, struct sctp_sndrcvinfo *, int);
1294
1295/* deprecated */
1296ssize_t
1297sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
1298    int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1299
1300sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
1301
1302/* deprecated */
1303ssize_t
1304sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
1305    struct sctp_sndrcvinfo *, int *);
1306
1307ssize_t
1308sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
1309    int, void *, socklen_t, unsigned int, int);
1310
1311ssize_t
1312sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
1313    socklen_t *, void *, socklen_t *, unsigned int *, int *);
1314
1315__END_DECLS
1316
1317#endif				/* !_KERNEL */
1318#endif				/* !__sctp_uio_h__ */
1319