xref: /freebsd/sys/netinet/sctp_uio.h (revision 277fbb92d5e4cd0938c67f77b08d9ba4ac9d54a6)
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 
47 typedef 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 
53 struct 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 */
63 struct 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  */
92 struct 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 
116 struct 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 
131 struct 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 
158 struct 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 
166 struct sctp_prinfo {
167 	uint16_t pr_policy;
168 	uint32_t pr_value;
169 };
170 
171 struct sctp_default_prinfo {
172 	uint16_t pr_policy;
173 	uint32_t pr_value;
174 	sctp_assoc_t pr_assoc_id;
175 };
176 
177 struct sctp_authinfo {
178 	uint16_t auth_keynumber;
179 };
180 
181 struct 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 
192 struct 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 
206 struct 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 
222 struct 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 
233 struct 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_BUF  0x0002/* Buffer based PR-SCTP */
263 #define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
264 #define SCTP_PR_SCTP_MAX  SCTP_PR_SCTP_RTX
265 #define SCTP_PR_SCTP_ALL  0x000f/* Used for aggregated stats */
266 
267 #define PR_SCTP_POLICY(x)         ((x) & 0x0f)
268 #define PR_SCTP_ENABLED(x)        ((PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) && \
269                                    (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_ALL))
270 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
271 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
272 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
273 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_MAX)
274 #define PR_SCTP_VALID_POLICY(x)   (PR_SCTP_POLICY(x) <= SCTP_PR_SCTP_MAX)
275 
276 /* Stat's */
277 struct sctp_pcbinfo {
278 	uint32_t ep_count;
279 	uint32_t asoc_count;
280 	uint32_t laddr_count;
281 	uint32_t raddr_count;
282 	uint32_t chk_count;
283 	uint32_t readq_count;
284 	uint32_t free_chunks;
285 	uint32_t stream_oque;
286 };
287 
288 struct sctp_sockstat {
289 	sctp_assoc_t ss_assoc_id;
290 	uint32_t ss_total_sndbuf;
291 	uint32_t ss_total_recv_buf;
292 };
293 
294 /*
295  * notification event structures
296  */
297 
298 /*
299  * association change event
300  */
301 struct sctp_assoc_change {
302 	uint16_t sac_type;
303 	uint16_t sac_flags;
304 	uint32_t sac_length;
305 	uint16_t sac_state;
306 	uint16_t sac_error;
307 	uint16_t sac_outbound_streams;
308 	uint16_t sac_inbound_streams;
309 	sctp_assoc_t sac_assoc_id;
310 	uint8_t sac_info[];
311 };
312 
313 /* sac_state values */
314 #define SCTP_COMM_UP            0x0001
315 #define SCTP_COMM_LOST          0x0002
316 #define SCTP_RESTART            0x0003
317 #define SCTP_SHUTDOWN_COMP      0x0004
318 #define SCTP_CANT_STR_ASSOC     0x0005
319 
320 /* sac_info values */
321 #define SCTP_ASSOC_SUPPORTS_PR        0x01
322 #define SCTP_ASSOC_SUPPORTS_AUTH      0x02
323 #define SCTP_ASSOC_SUPPORTS_ASCONF    0x03
324 #define SCTP_ASSOC_SUPPORTS_MULTIBUF  0x04
325 #define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05
326 #define SCTP_ASSOC_SUPPORTS_MAX       0x05
327 /*
328  * Address event
329  */
330 struct sctp_paddr_change {
331 	uint16_t spc_type;
332 	uint16_t spc_flags;
333 	uint32_t spc_length;
334 	struct sockaddr_storage spc_aaddr;
335 	uint32_t spc_state;
336 	uint32_t spc_error;
337 	sctp_assoc_t spc_assoc_id;
338 };
339 
340 /* paddr state values */
341 #define SCTP_ADDR_AVAILABLE	0x0001
342 #define SCTP_ADDR_UNREACHABLE	0x0002
343 #define SCTP_ADDR_REMOVED	0x0003
344 #define SCTP_ADDR_ADDED		0x0004
345 #define SCTP_ADDR_MADE_PRIM	0x0005
346 #define SCTP_ADDR_CONFIRMED	0x0006
347 
348 #define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
349 #define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE nor
350 					 * SCTP_ADDR_UNCONFIRMED */
351 #define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
352 
353 /* remote error events */
354 struct sctp_remote_error {
355 	uint16_t sre_type;
356 	uint16_t sre_flags;
357 	uint32_t sre_length;
358 	uint16_t sre_error;
359 	sctp_assoc_t sre_assoc_id;
360 	uint8_t sre_data[];
361 };
362 
363 /* data send failure event (deprecated) */
364 struct sctp_send_failed {
365 	uint16_t ssf_type;
366 	uint16_t ssf_flags;
367 	uint32_t ssf_length;
368 	uint32_t ssf_error;
369 	struct sctp_sndrcvinfo ssf_info;
370 	sctp_assoc_t ssf_assoc_id;
371 	uint8_t ssf_data[];
372 };
373 
374 /* data send failure event (not deprecated) */
375 struct sctp_send_failed_event {
376 	uint16_t ssfe_type;
377 	uint16_t ssfe_flags;
378 	uint32_t ssfe_length;
379 	uint32_t ssfe_error;
380 	struct sctp_sndinfo ssfe_info;
381 	sctp_assoc_t ssfe_assoc_id;
382 	uint8_t ssfe_data[];
383 };
384 
385 /* flag that indicates state of data */
386 #define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
387 #define SCTP_DATA_SENT		0x0002	/* on wire at failure */
388 
389 /* shutdown event */
390 struct sctp_shutdown_event {
391 	uint16_t sse_type;
392 	uint16_t sse_flags;
393 	uint32_t sse_length;
394 	sctp_assoc_t sse_assoc_id;
395 };
396 
397 /* Adaptation layer indication stuff */
398 struct sctp_adaptation_event {
399 	uint16_t sai_type;
400 	uint16_t sai_flags;
401 	uint32_t sai_length;
402 	uint32_t sai_adaptation_ind;
403 	sctp_assoc_t sai_assoc_id;
404 };
405 
406 struct sctp_setadaptation {
407 	uint32_t ssb_adaptation_ind;
408 };
409 
410 /* compatible old spelling */
411 struct sctp_adaption_event {
412 	uint16_t sai_type;
413 	uint16_t sai_flags;
414 	uint32_t sai_length;
415 	uint32_t sai_adaption_ind;
416 	sctp_assoc_t sai_assoc_id;
417 };
418 
419 struct sctp_setadaption {
420 	uint32_t ssb_adaption_ind;
421 };
422 
423 
424 /*
425  * Partial Delivery API event
426  */
427 struct sctp_pdapi_event {
428 	uint16_t pdapi_type;
429 	uint16_t pdapi_flags;
430 	uint32_t pdapi_length;
431 	uint32_t pdapi_indication;
432 	uint16_t pdapi_stream;
433 	uint16_t pdapi_seq;
434 	sctp_assoc_t pdapi_assoc_id;
435 };
436 
437 /* indication values */
438 #define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
439 
440 
441 /*
442  * authentication key event
443  */
444 struct sctp_authkey_event {
445 	uint16_t auth_type;
446 	uint16_t auth_flags;
447 	uint32_t auth_length;
448 	uint16_t auth_keynumber;
449 	uint16_t auth_altkeynumber;
450 	uint32_t auth_indication;
451 	sctp_assoc_t auth_assoc_id;
452 };
453 
454 /* indication values */
455 #define SCTP_AUTH_NEW_KEY	0x0001
456 #define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY
457 #define SCTP_AUTH_NO_AUTH	0x0002
458 #define SCTP_AUTH_FREE_KEY	0x0003
459 
460 
461 struct sctp_sender_dry_event {
462 	uint16_t sender_dry_type;
463 	uint16_t sender_dry_flags;
464 	uint32_t sender_dry_length;
465 	sctp_assoc_t sender_dry_assoc_id;
466 };
467 
468 
469 /*
470  * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
471  */
472 struct sctp_stream_reset_event {
473 	uint16_t strreset_type;
474 	uint16_t strreset_flags;
475 	uint32_t strreset_length;
476 	sctp_assoc_t strreset_assoc_id;
477 	uint16_t strreset_stream_list[];
478 };
479 
480 /* flags in stream_reset_event (strreset_flags) */
481 #define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
482 #define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
483 #define SCTP_STREAM_RESET_DENIED        0x0004
484 #define SCTP_STREAM_RESET_FAILED        0x0008
485 
486 /*
487  * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
488  */
489 struct sctp_assoc_reset_event {
490 	uint16_t assocreset_type;
491 	uint16_t assocreset_flags;
492 	uint32_t assocreset_length;
493 	sctp_assoc_t assocreset_assoc_id;
494 	uint32_t assocreset_local_tsn;
495 	uint32_t assocreset_remote_tsn;
496 };
497 
498 #define SCTP_ASSOC_RESET_DENIED		0x0004
499 #define SCTP_ASSOC_RESET_FAILED		0x0008
500 
501 /*
502  * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
503  */
504 struct sctp_stream_change_event {
505 	uint16_t strchange_type;
506 	uint16_t strchange_flags;
507 	uint32_t strchange_length;
508 	sctp_assoc_t strchange_assoc_id;
509 	uint16_t strchange_instrms;
510 	uint16_t strchange_outstrms;
511 };
512 
513 #define SCTP_STREAM_CHANGE_DENIED	0x0004
514 #define SCTP_STREAM_CHANGE_FAILED	0x0008
515 
516 
517 /* SCTP notification event */
518 struct sctp_tlv {
519 	uint16_t sn_type;
520 	uint16_t sn_flags;
521 	uint32_t sn_length;
522 };
523 
524 union sctp_notification {
525 	struct sctp_tlv sn_header;
526 	struct sctp_assoc_change sn_assoc_change;
527 	struct sctp_paddr_change sn_paddr_change;
528 	struct sctp_remote_error sn_remote_error;
529 	struct sctp_send_failed sn_send_failed;
530 	struct sctp_shutdown_event sn_shutdown_event;
531 	struct sctp_adaptation_event sn_adaptation_event;
532 	/* compatibility same as above */
533 	struct sctp_adaption_event sn_adaption_event;
534 	struct sctp_pdapi_event sn_pdapi_event;
535 	struct sctp_authkey_event sn_auth_event;
536 	struct sctp_sender_dry_event sn_sender_dry_event;
537 	struct sctp_send_failed_event sn_send_failed_event;
538 	struct sctp_stream_reset_event sn_strreset_event;
539 	struct sctp_assoc_reset_event sn_assocreset_event;
540 	struct sctp_stream_change_event sn_strchange_event;
541 };
542 
543 /* notification types */
544 #define SCTP_ASSOC_CHANGE                       0x0001
545 #define SCTP_PEER_ADDR_CHANGE                   0x0002
546 #define SCTP_REMOTE_ERROR                       0x0003
547 #define SCTP_SEND_FAILED                        0x0004
548 #define SCTP_SHUTDOWN_EVENT                     0x0005
549 #define SCTP_ADAPTATION_INDICATION              0x0006
550 /* same as above */
551 #define SCTP_ADAPTION_INDICATION                0x0006
552 #define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
553 #define SCTP_AUTHENTICATION_EVENT               0x0008
554 #define SCTP_STREAM_RESET_EVENT                 0x0009
555 #define SCTP_SENDER_DRY_EVENT                   0x000a
556 #define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b	/* we don't send this */
557 #define SCTP_ASSOC_RESET_EVENT                  0x000c
558 #define SCTP_STREAM_CHANGE_EVENT                0x000d
559 #define SCTP_SEND_FAILED_EVENT                  0x000e
560 /*
561  * socket option structs
562  */
563 
564 struct sctp_paddrparams {
565 	struct sockaddr_storage spp_address;
566 	sctp_assoc_t spp_assoc_id;
567 	uint32_t spp_hbinterval;
568 	uint32_t spp_pathmtu;
569 	uint32_t spp_flags;
570 	uint32_t spp_ipv6_flowlabel;
571 	uint16_t spp_pathmaxrxt;
572 	uint8_t spp_dscp;
573 };
574 
575 #define spp_ipv4_tos spp_dscp
576 
577 #define SPP_HB_ENABLE		0x00000001
578 #define SPP_HB_DISABLE		0x00000002
579 #define SPP_HB_DEMAND		0x00000004
580 #define SPP_PMTUD_ENABLE	0x00000008
581 #define SPP_PMTUD_DISABLE	0x00000010
582 #define SPP_HB_TIME_IS_ZERO     0x00000080
583 #define SPP_IPV6_FLOWLABEL      0x00000100
584 #define SPP_DSCP                0x00000200
585 #define SPP_IPV4_TOS            SPP_DSCP
586 
587 struct sctp_paddrthlds {
588 	struct sockaddr_storage spt_address;
589 	sctp_assoc_t spt_assoc_id;
590 	uint16_t spt_pathmaxrxt;
591 	uint16_t spt_pathpfthld;
592 };
593 
594 struct sctp_paddrinfo {
595 	struct sockaddr_storage spinfo_address;
596 	sctp_assoc_t spinfo_assoc_id;
597 	int32_t spinfo_state;
598 	uint32_t spinfo_cwnd;
599 	uint32_t spinfo_srtt;
600 	uint32_t spinfo_rto;
601 	uint32_t spinfo_mtu;
602 };
603 
604 struct sctp_rtoinfo {
605 	sctp_assoc_t srto_assoc_id;
606 	uint32_t srto_initial;
607 	uint32_t srto_max;
608 	uint32_t srto_min;
609 };
610 
611 struct sctp_assocparams {
612 	sctp_assoc_t sasoc_assoc_id;
613 	uint32_t sasoc_peer_rwnd;
614 	uint32_t sasoc_local_rwnd;
615 	uint32_t sasoc_cookie_life;
616 	uint16_t sasoc_asocmaxrxt;
617 	uint16_t sasoc_number_peer_destinations;
618 };
619 
620 struct sctp_setprim {
621 	struct sockaddr_storage ssp_addr;
622 	sctp_assoc_t ssp_assoc_id;
623 	uint8_t ssp_padding[4];
624 };
625 
626 struct sctp_setpeerprim {
627 	struct sockaddr_storage sspp_addr;
628 	sctp_assoc_t sspp_assoc_id;
629 	uint8_t sspp_padding[4];
630 };
631 
632 struct sctp_getaddresses {
633 	sctp_assoc_t sget_assoc_id;
634 	/* addr is filled in for N * sockaddr_storage */
635 	struct sockaddr addr[1];
636 };
637 
638 struct sctp_status {
639 	sctp_assoc_t sstat_assoc_id;
640 	int32_t sstat_state;
641 	uint32_t sstat_rwnd;
642 	uint16_t sstat_unackdata;
643 	uint16_t sstat_penddata;
644 	uint16_t sstat_instrms;
645 	uint16_t sstat_outstrms;
646 	uint32_t sstat_fragmentation_point;
647 	struct sctp_paddrinfo sstat_primary;
648 };
649 
650 /*
651  * AUTHENTICATION support
652  */
653 /* SCTP_AUTH_CHUNK */
654 struct sctp_authchunk {
655 	uint8_t sauth_chunk;
656 };
657 
658 /* SCTP_AUTH_KEY */
659 struct sctp_authkey {
660 	sctp_assoc_t sca_assoc_id;
661 	uint16_t sca_keynumber;
662 	uint16_t sca_keylength;
663 	uint8_t sca_key[];
664 };
665 
666 /* SCTP_HMAC_IDENT */
667 struct sctp_hmacalgo {
668 	uint32_t shmac_number_of_idents;
669 	uint16_t shmac_idents[];
670 };
671 
672 /* AUTH hmac_id */
673 #define SCTP_AUTH_HMAC_ID_RSVD		0x0000
674 #define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
675 #define SCTP_AUTH_HMAC_ID_SHA256	0x0003
676 
677 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
678 struct sctp_authkeyid {
679 	sctp_assoc_t scact_assoc_id;
680 	uint16_t scact_keynumber;
681 };
682 
683 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
684 struct sctp_authchunks {
685 	sctp_assoc_t gauth_assoc_id;
686 	uint32_t gauth_number_of_chunks;
687 	uint8_t gauth_chunks[];
688 };
689 
690 struct sctp_assoc_value {
691 	sctp_assoc_t assoc_id;
692 	uint32_t assoc_value;
693 };
694 
695 struct sctp_cc_option {
696 	int option;
697 	struct sctp_assoc_value aid_value;
698 };
699 
700 struct sctp_stream_value {
701 	sctp_assoc_t assoc_id;
702 	uint16_t stream_id;
703 	uint16_t stream_value;
704 };
705 
706 struct sctp_assoc_ids {
707 	uint32_t gaids_number_of_ids;
708 	sctp_assoc_t gaids_assoc_id[];
709 };
710 
711 struct sctp_sack_info {
712 	sctp_assoc_t sack_assoc_id;
713 	uint32_t sack_delay;
714 	uint32_t sack_freq;
715 };
716 
717 struct sctp_timeouts {
718 	sctp_assoc_t stimo_assoc_id;
719 	uint32_t stimo_init;
720 	uint32_t stimo_data;
721 	uint32_t stimo_sack;
722 	uint32_t stimo_shutdown;
723 	uint32_t stimo_heartbeat;
724 	uint32_t stimo_cookie;
725 	uint32_t stimo_shutdownack;
726 };
727 
728 struct sctp_udpencaps {
729 	struct sockaddr_storage sue_address;
730 	sctp_assoc_t sue_assoc_id;
731 	uint16_t sue_port;
732 };
733 
734 struct sctp_prstatus {
735 	sctp_assoc_t sprstat_assoc_id;
736 	uint16_t sprstat_sid;
737 	uint16_t sprstat_policy;
738 	uint64_t sprstat_abandoned_unsent;
739 	uint64_t sprstat_abandoned_sent;
740 };
741 
742 struct sctp_cwnd_args {
743 	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
744 	uint32_t cwnd_new_value;/* cwnd in k */
745 	uint32_t pseudo_cumack;
746 	uint16_t inflight;	/* flightsize in k */
747 	uint16_t cwnd_augment;	/* increment to it */
748 	uint8_t meets_pseudo_cumack;
749 	uint8_t need_new_pseudo_cumack;
750 	uint8_t cnt_in_send;
751 	uint8_t cnt_in_str;
752 };
753 
754 struct sctp_blk_args {
755 	uint32_t onsb;		/* in 1k bytes */
756 	uint32_t sndlen;	/* len of send being attempted */
757 	uint32_t peer_rwnd;	/* rwnd of peer */
758 	uint16_t send_sent_qcnt;/* chnk cnt */
759 	uint16_t stream_qcnt;	/* chnk cnt */
760 	uint16_t chunks_on_oque;/* chunks out */
761 	uint16_t flight_size;	/* flight size in k */
762 };
763 
764 /*
765  * Max we can reset in one setting, note this is dictated not by the define
766  * but the size of a mbuf cluster so don't change this define and think you
767  * can specify more. You must do multiple resets if you want to reset more
768  * than SCTP_MAX_EXPLICIT_STR_RESET.
769  */
770 #define SCTP_MAX_EXPLICT_STR_RESET   1000
771 
772 struct sctp_reset_streams {
773 	sctp_assoc_t srs_assoc_id;
774 	uint16_t srs_flags;
775 	uint16_t srs_number_streams;	/* 0 == ALL */
776 	uint16_t srs_stream_list[];	/* list if strrst_num_streams is not 0 */
777 };
778 
779 struct sctp_add_streams {
780 	sctp_assoc_t sas_assoc_id;
781 	uint16_t sas_instrms;
782 	uint16_t sas_outstrms;
783 };
784 
785 struct sctp_get_nonce_values {
786 	sctp_assoc_t gn_assoc_id;
787 	uint32_t gn_peers_tag;
788 	uint32_t gn_local_tag;
789 };
790 
791 /* Debugging logs */
792 struct sctp_str_log {
793 	void *stcb;		/* FIXME: LP64 issue */
794 	uint32_t n_tsn;
795 	uint32_t e_tsn;
796 	uint16_t n_sseq;
797 	uint16_t e_sseq;
798 	uint16_t strm;
799 };
800 
801 struct sctp_sb_log {
802 	void *stcb;		/* FIXME: LP64 issue */
803 	uint32_t so_sbcc;
804 	uint32_t stcb_sbcc;
805 	uint32_t incr;
806 };
807 
808 struct sctp_fr_log {
809 	uint32_t largest_tsn;
810 	uint32_t largest_new_tsn;
811 	uint32_t tsn;
812 };
813 
814 struct sctp_fr_map {
815 	uint32_t base;
816 	uint32_t cum;
817 	uint32_t high;
818 };
819 
820 struct sctp_rwnd_log {
821 	uint32_t rwnd;
822 	uint32_t send_size;
823 	uint32_t overhead;
824 	uint32_t new_rwnd;
825 };
826 
827 struct sctp_mbcnt_log {
828 	uint32_t total_queue_size;
829 	uint32_t size_change;
830 	uint32_t total_queue_mb_size;
831 	uint32_t mbcnt_change;
832 };
833 
834 struct sctp_sack_log {
835 	uint32_t cumack;
836 	uint32_t oldcumack;
837 	uint32_t tsn;
838 	uint16_t numGaps;
839 	uint16_t numDups;
840 };
841 
842 struct sctp_lock_log {
843 	void *sock;		/* FIXME: LP64 issue */
844 	void *inp;		/* FIXME: LP64 issue */
845 	uint8_t tcb_lock;
846 	uint8_t inp_lock;
847 	uint8_t info_lock;
848 	uint8_t sock_lock;
849 	uint8_t sockrcvbuf_lock;
850 	uint8_t socksndbuf_lock;
851 	uint8_t create_lock;
852 	uint8_t resv;
853 };
854 
855 struct sctp_rto_log {
856 	void *net;		/* FIXME: LP64 issue */
857 	uint32_t rtt;
858 };
859 
860 struct sctp_nagle_log {
861 	void *stcb;		/* FIXME: LP64 issue */
862 	uint32_t total_flight;
863 	uint32_t total_in_queue;
864 	uint16_t count_in_queue;
865 	uint16_t count_in_flight;
866 };
867 
868 struct sctp_sbwake_log {
869 	void *stcb;		/* FIXME: LP64 issue */
870 	uint16_t send_q;
871 	uint16_t sent_q;
872 	uint16_t flight;
873 	uint16_t wake_cnt;
874 	uint8_t stream_qcnt;	/* chnk cnt */
875 	uint8_t chunks_on_oque;	/* chunks out */
876 	uint8_t sbflags;
877 	uint8_t sctpflags;
878 };
879 
880 struct sctp_misc_info {
881 	uint32_t log1;
882 	uint32_t log2;
883 	uint32_t log3;
884 	uint32_t log4;
885 };
886 
887 struct sctp_log_closing {
888 	void *inp;		/* FIXME: LP64 issue */
889 	void *stcb;		/* FIXME: LP64 issue */
890 	uint32_t sctp_flags;
891 	uint16_t state;
892 	int16_t loc;
893 };
894 
895 struct sctp_mbuf_log {
896 	struct mbuf *mp;	/* FIXME: LP64 issue */
897 	caddr_t ext;
898 	caddr_t data;
899 	uint16_t size;
900 	uint8_t refcnt;
901 	uint8_t mbuf_flags;
902 };
903 
904 struct sctp_cwnd_log {
905 	uint64_t time_event;
906 	uint8_t from;
907 	uint8_t event_type;
908 	uint8_t resv[2];
909 	union {
910 		struct sctp_log_closing close;
911 		struct sctp_blk_args blk;
912 		struct sctp_cwnd_args cwnd;
913 		struct sctp_str_log strlog;
914 		struct sctp_fr_log fr;
915 		struct sctp_fr_map map;
916 		struct sctp_rwnd_log rwnd;
917 		struct sctp_mbcnt_log mbcnt;
918 		struct sctp_sack_log sack;
919 		struct sctp_lock_log lock;
920 		struct sctp_rto_log rto;
921 		struct sctp_sb_log sb;
922 		struct sctp_nagle_log nagle;
923 		struct sctp_sbwake_log wake;
924 		struct sctp_mbuf_log mb;
925 		struct sctp_misc_info misc;
926 	}     x;
927 };
928 
929 struct sctp_cwnd_log_req {
930 	int32_t num_in_log;	/* Number in log */
931 	int32_t num_ret;	/* Number returned */
932 	int32_t start_at;	/* start at this one */
933 	int32_t end_at;		/* end at this one */
934 	struct sctp_cwnd_log log[];
935 };
936 
937 struct sctp_timeval {
938 	uint32_t tv_sec;
939 	uint32_t tv_usec;
940 };
941 
942 struct sctpstat {
943 	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
944 							 * (TimeStamp) */
945 	/* MIB according to RFC 3873 */
946 	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
947 	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
948 	uint32_t sctps_restartestab;
949 	uint32_t sctps_collisionestab;
950 	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
951 	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
952 	uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
953 	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
954 	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
955 	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
956 	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
957 	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
958 	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
959 	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
960 	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
961 	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
962 	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
963 	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
964 	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
965 
966 	/* input statistics: */
967 	uint32_t sctps_recvpackets;	/* total input packets        */
968 	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
969 	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
970 	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
971 	uint32_t sctps_recvdata;/* total input DATA chunks    */
972 	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
973 	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
974 	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
975 	uint32_t sctps_recvecne;/* total input ECNE chunks    */
976 	uint32_t sctps_recvauth;/* total input AUTH chunks    */
977 	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
978 	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
979 					 * received */
980 	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
981 					 * received */
982 	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
983 	uint32_t sctps_recvexpress;	/* total fast path receives all one
984 					 * chunk */
985 	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
986 	uint32_t sctps_recvnocrc;
987 	uint32_t sctps_recvswcrc;
988 	uint32_t sctps_recvhwcrc;
989 
990 	/* output statistics: */
991 	uint32_t sctps_sendpackets;	/* total output packets       */
992 	uint32_t sctps_sendsacks;	/* total output SACKs         */
993 	uint32_t sctps_senddata;/* total output DATA chunks   */
994 	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
995 					 * chunks */
996 	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
997 					 * DATA chunks */
998 	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
999 						 * more than once to same
1000 						 * chunk (u-del multi-fr
1001 						 * algo). */
1002 	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
1003 	uint32_t sctps_sendecne;/* total output ECNE chunks    */
1004 	uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
1005 	uint32_t sctps_senderrors;	/* ip_output error counter */
1006 	uint32_t sctps_sendnocrc;
1007 	uint32_t sctps_sendswcrc;
1008 	uint32_t sctps_sendhwcrc;
1009 	/* PCKDROPREP statistics: */
1010 	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
1011 	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
1012 	uint32_t sctps_pdrpmbda;/* P-drops with data */
1013 	uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
1014 	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
1015 					 * only */
1016 	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
1017 	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
1018 	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
1019 					 * said break */
1020 	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
1021 	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
1022 	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
1023 	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
1024 	uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
1025 	uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
1026 	/* timeouts */
1027 	uint32_t sctps_timoiterator;	/* Number of iterator timers that
1028 					 * fired */
1029 	uint32_t sctps_timodata;/* Number of T3 data time outs */
1030 	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
1031 					 * that fired */
1032 	uint32_t sctps_timoinit;/* Number of INIT timers that fired */
1033 	uint32_t sctps_timosack;/* Number of sack timers that fired */
1034 	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
1035 					 * fired */
1036 	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
1037 					 * fired */
1038 	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
1039 					 * fired */
1040 	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
1041 					 * its cookie secret */
1042 	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
1043 	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
1044 					 * fired */
1045 	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
1046 						 * timers that fired */
1047 	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
1048 					 * fired */
1049 	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
1050 					 * fired */
1051 	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
1052 					 * fired */
1053 	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
1054 					 * timer fired */
1055 	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
1056 					 * fired */
1057 	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
1058 	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
1059 	/* former early FR counters */
1060 	uint32_t sctps_spare[11];
1061 	/* others */
1062 	uint32_t sctps_hdrops;	/* packet shorter than header */
1063 	uint32_t sctps_badsum;	/* checksum error             */
1064 	uint32_t sctps_noport;	/* no endpoint for port       */
1065 	uint32_t sctps_badvtag;	/* bad v-tag                  */
1066 	uint32_t sctps_badsid;	/* bad SID                    */
1067 	uint32_t sctps_nomem;	/* no memory                  */
1068 	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
1069 						 * RTT window */
1070 	uint32_t sctps_markedretrans;
1071 	uint32_t sctps_naglesent;	/* nagle allowed sending      */
1072 	uint32_t sctps_naglequeued;	/* nagle doesn't allow sending */
1073 	uint32_t sctps_maxburstqueued;	/* max burst doesn't allow sending */
1074 	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
1075 					 * interface ring buffer OR we had a
1076 					 * send error and are queuing one
1077 					 * send. */
1078 	uint32_t sctps_windowprobed;	/* total number of window probes sent */
1079 	uint32_t sctps_lowlevelerr;	/* total times an output error causes
1080 					 * us to clamp down on next user send. */
1081 	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
1082 					 * caused from a user send from a user
1083 					 * invoked send not a sack response */
1084 	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
1085 					 * chunk limit reached */
1086 	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
1087 					 * limit reached */
1088 	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
1089 					 * cwnd */
1090 	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
1091 	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
1092 	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
1093 					 * of user data on primary */
1094 	uint32_t sctps_cmt_randry;	/* Same for above */
1095 	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
1096 	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
1097 	uint32_t sctps_sends_with_flags;	/* number of sends with
1098 						 * sinfo_flags !=0 */
1099 	uint32_t sctps_sends_with_unord;	/* number of unordered sends */
1100 	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
1101 	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
1102 						 * flag set */
1103 	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
1104 						 * drain called */
1105 	uint32_t sctps_protocol_drains_done;	/* number of times we did a
1106 						 * protocol drain */
1107 	uint32_t sctps_read_peeks;	/* Number of times recv was called
1108 					 * with peek */
1109 	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
1110 	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
1111 	uint32_t sctps_left_abandon;	/* Number of unread messages abandoned
1112 					 * by close */
1113 	uint32_t sctps_send_burst_avoid;	/* Unused */
1114 	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
1115 					 * max burst inflight to net */
1116 	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
1117 					 * fwd-tsn's */
1118 	uint32_t sctps_queue_upd_ecne;	/* Number of times we queued or
1119 					 * updated an ECN chunk on send queue */
1120 	uint32_t sctps_reserved[31];	/* Future ABI compat - remove int's
1121 					 * from here when adding new */
1122 };
1123 
1124 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
1125 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
1126 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1127 #define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
1128 #define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
1129 #else
1130 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
1131 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
1132 #endif
1133 /* The following macros are for handling MIB values, */
1134 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
1135 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
1136 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
1137 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
1138 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
1139 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
1140 
1141 union sctp_sockstore {
1142 	struct sockaddr_in sin;
1143 	struct sockaddr_in6 sin6;
1144 	struct sockaddr sa;
1145 };
1146 
1147 
1148 /***********************************/
1149 /* And something for us old timers */
1150 /***********************************/
1151 
1152 #ifndef ntohll
1153 #include <sys/endian.h>
1154 #define ntohll(x) be64toh(x)
1155 #endif
1156 
1157 #ifndef htonll
1158 #include <sys/endian.h>
1159 #define htonll(x) htobe64(x)
1160 #endif
1161 /***********************************/
1162 
1163 
1164 struct xsctp_inpcb {
1165 	uint32_t last;
1166 	uint32_t flags;
1167 	uint64_t features;
1168 	uint32_t total_sends;
1169 	uint32_t total_recvs;
1170 	uint32_t total_nospaces;
1171 	uint32_t fragmentation_point;
1172 	uint16_t local_port;
1173 	uint16_t qlen;
1174 	uint16_t maxqlen;
1175 	void *socket;
1176 #if defined(__LP64__)
1177 	uint32_t extra_padding[29];	/* future */
1178 #else
1179 	uint32_t extra_padding[30];	/* future */
1180 #endif
1181 };
1182 
1183 struct xsctp_tcb {
1184 	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
1185 	uint32_t last;
1186 	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
1187 	uint32_t state;		/* sctpAssocEntry 8   */
1188 	uint32_t in_streams;	/* sctpAssocEntry 9   */
1189 	uint32_t out_streams;	/* sctpAssocEntry 10  */
1190 	uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
1191 	uint32_t primary_process;	/* sctpAssocEntry 12  */
1192 	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
1193 	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
1194 	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
1195 	uint32_t total_sends;
1196 	uint32_t total_recvs;
1197 	uint32_t local_tag;
1198 	uint32_t remote_tag;
1199 	uint32_t initial_tsn;
1200 	uint32_t highest_tsn;
1201 	uint32_t cumulative_tsn;
1202 	uint32_t cumulative_tsn_ack;
1203 	uint32_t mtu;
1204 	uint32_t refcnt;
1205 	uint16_t local_port;	/* sctpAssocEntry 3   */
1206 	uint16_t remote_port;	/* sctpAssocEntry 4   */
1207 	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
1208 	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
1209 	uint32_t peers_rwnd;
1210 	sctp_assoc_t assoc_id;	/* sctpAssocEntry 1   */
1211 	uint32_t extra_padding[32];	/* future */
1212 };
1213 
1214 struct xsctp_laddr {
1215 	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1216 	uint32_t last;
1217 	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1218 	uint32_t extra_padding[32];	/* future */
1219 };
1220 
1221 struct xsctp_raddr {
1222 	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1223 	uint32_t last;
1224 	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1225 	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1226 	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1227 	uint32_t error_counter;	/* */
1228 	uint32_t cwnd;		/* */
1229 	uint32_t flight_size;	/* */
1230 	uint32_t mtu;		/* */
1231 	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1232 	uint8_t confirmed;	/* */
1233 	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1234 	uint8_t potentially_failed;
1235 	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1236 	uint32_t rtt;
1237 	uint32_t heartbeat_interval;
1238 	uint32_t ssthresh;
1239 	uint32_t extra_padding[30];	/* future */
1240 };
1241 
1242 #define SCTP_MAX_LOGGING_SIZE 30000
1243 #define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1244 
1245 struct sctp_log_entry {
1246 	uint64_t timestamp;
1247 	uint32_t subsys;
1248 	uint32_t padding;
1249 	uint32_t params[SCTP_TRACE_PARAMS];
1250 };
1251 
1252 struct sctp_log {
1253 	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1254 	uint32_t index;
1255 	uint32_t padding;
1256 };
1257 
1258 /*
1259  * Kernel defined for sctp_send
1260  */
1261 #if defined(_KERNEL) || defined(__Userspace__)
1262 int
1263 sctp_lower_sosend(struct socket *so,
1264     struct sockaddr *addr,
1265     struct uio *uio,
1266     struct mbuf *i_pak,
1267     struct mbuf *control,
1268     int flags,
1269     struct sctp_sndrcvinfo *srcv
1270     ,struct thread *p
1271 );
1272 
1273 int
1274 sctp_sorecvmsg(struct socket *so,
1275     struct uio *uio,
1276     struct mbuf **mp,
1277     struct sockaddr *from,
1278     int fromlen,
1279     int *msg_flags,
1280     struct sctp_sndrcvinfo *sinfo,
1281     int filling_sinfo);
1282 
1283 #endif
1284 
1285 /*
1286  * API system calls
1287  */
1288 #if !(defined(_KERNEL)) && !(defined(__Userspace__))
1289 
1290 __BEGIN_DECLS
1291 int sctp_peeloff(int, sctp_assoc_t);
1292 int sctp_bindx(int, struct sockaddr *, int, int);
1293 int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
1294 int sctp_getaddrlen(sa_family_t);
1295 int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
1296 void sctp_freepaddrs(struct sockaddr *);
1297 int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
1298 void sctp_freeladdrs(struct sockaddr *);
1299 int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
1300 
1301 /* deprecated */
1302 ssize_t
1303 sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
1304     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1305 
1306 /* deprecated */
1307 ssize_t
1308 sctp_send(int, const void *, size_t,
1309     const struct sctp_sndrcvinfo *, int);
1310 
1311 /* deprecated */
1312 ssize_t
1313 sctp_sendx(int, const void *, size_t, struct sockaddr *,
1314     int, struct sctp_sndrcvinfo *, int);
1315 
1316 /* deprecated */
1317 ssize_t
1318 sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
1319     int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1320 
1321 sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
1322 
1323 /* deprecated */
1324 ssize_t
1325 sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
1326     struct sctp_sndrcvinfo *, int *);
1327 
1328 ssize_t
1329 sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
1330     int, void *, socklen_t, unsigned int, int);
1331 
1332 ssize_t
1333 sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
1334     socklen_t *, void *, socklen_t *, unsigned int *, int *);
1335 
1336 __END_DECLS
1337 
1338 #endif				/* !_KERNEL */
1339 #endif				/* !__sctp_uio_h__ */
1340