xref: /freebsd/sys/netinet/sctp_uio.h (revision 54c7d75a06d8e6cda90c27c8e722ed2a3c1c20f3)
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;
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 
151 struct 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 
159 struct sctp_prinfo {
160 	uint16_t pr_policy;
161 	uint32_t pr_value;
162 };
163 
164 struct sctp_default_prinfo {
165 	uint16_t pr_policy;
166 	uint32_t pr_value;
167 	sctp_assoc_t pr_assoc_id;
168 };
169 
170 struct sctp_authinfo {
171 	uint16_t auth_keynumber;
172 };
173 
174 struct 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 
185 struct 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 
199 struct 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 
215 struct 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 
226 struct 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 */
270 struct 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 
281 struct 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  */
294 struct 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  */
323 struct 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 };
332 
333 /* paddr state values */
334 #define SCTP_ADDR_AVAILABLE	0x0001
335 #define SCTP_ADDR_UNREACHABLE	0x0002
336 #define SCTP_ADDR_REMOVED	0x0003
337 #define SCTP_ADDR_ADDED		0x0004
338 #define SCTP_ADDR_MADE_PRIM	0x0005
339 #define SCTP_ADDR_CONFIRMED	0x0006
340 
341 #define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
342 #define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE nor
343 					 * SCTP_ADDR_UNCONFIRMED */
344 #define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
345 
346 /* remote error events */
347 struct sctp_remote_error {
348 	uint16_t sre_type;
349 	uint16_t sre_flags;
350 	uint32_t sre_length;
351 	uint16_t sre_error;
352 	sctp_assoc_t sre_assoc_id;
353 	uint8_t sre_data[];
354 };
355 
356 /* data send failure event (deprecated) */
357 struct sctp_send_failed {
358 	uint16_t ssf_type;
359 	uint16_t ssf_flags;
360 	uint32_t ssf_length;
361 	uint32_t ssf_error;
362 	struct sctp_sndrcvinfo ssf_info;
363 	sctp_assoc_t ssf_assoc_id;
364 	uint8_t ssf_data[];
365 };
366 
367 /* data send failure event (not deprecated) */
368 struct sctp_send_failed_event {
369 	uint16_t ssfe_type;
370 	uint16_t ssfe_flags;
371 	uint32_t ssfe_length;
372 	uint32_t ssfe_error;
373 	struct sctp_sndinfo ssfe_info;
374 	sctp_assoc_t ssfe_assoc_id;
375 	uint8_t ssfe_data[];
376 };
377 
378 /* flag that indicates state of data */
379 #define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
380 #define SCTP_DATA_SENT		0x0002	/* on wire at failure */
381 
382 /* shutdown event */
383 struct sctp_shutdown_event {
384 	uint16_t sse_type;
385 	uint16_t sse_flags;
386 	uint32_t sse_length;
387 	sctp_assoc_t sse_assoc_id;
388 };
389 
390 /* Adaptation layer indication stuff */
391 struct sctp_adaptation_event {
392 	uint16_t sai_type;
393 	uint16_t sai_flags;
394 	uint32_t sai_length;
395 	uint32_t sai_adaptation_ind;
396 	sctp_assoc_t sai_assoc_id;
397 };
398 
399 struct sctp_setadaptation {
400 	uint32_t ssb_adaptation_ind;
401 };
402 
403 /* compatible old spelling */
404 struct sctp_adaption_event {
405 	uint16_t sai_type;
406 	uint16_t sai_flags;
407 	uint32_t sai_length;
408 	uint32_t sai_adaption_ind;
409 	sctp_assoc_t sai_assoc_id;
410 };
411 
412 struct sctp_setadaption {
413 	uint32_t ssb_adaption_ind;
414 };
415 
416 
417 /*
418  * Partial Delivery API event
419  */
420 struct sctp_pdapi_event {
421 	uint16_t pdapi_type;
422 	uint16_t pdapi_flags;
423 	uint32_t pdapi_length;
424 	uint32_t pdapi_indication;
425 	uint16_t pdapi_stream;
426 	uint16_t pdapi_seq;
427 	sctp_assoc_t pdapi_assoc_id;
428 };
429 
430 /* indication values */
431 #define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
432 
433 
434 /*
435  * authentication key event
436  */
437 struct sctp_authkey_event {
438 	uint16_t auth_type;
439 	uint16_t auth_flags;
440 	uint32_t auth_length;
441 	uint16_t auth_keynumber;
442 	uint16_t auth_altkeynumber;
443 	uint32_t auth_indication;
444 	sctp_assoc_t auth_assoc_id;
445 };
446 
447 /* indication values */
448 #define SCTP_AUTH_NEW_KEY	0x0001
449 #define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY
450 #define SCTP_AUTH_NO_AUTH	0x0002
451 #define SCTP_AUTH_FREE_KEY	0x0003
452 
453 
454 struct sctp_sender_dry_event {
455 	uint16_t sender_dry_type;
456 	uint16_t sender_dry_flags;
457 	uint32_t sender_dry_length;
458 	sctp_assoc_t sender_dry_assoc_id;
459 };
460 
461 
462 /*
463  * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
464  */
465 struct sctp_stream_reset_event {
466 	uint16_t strreset_type;
467 	uint16_t strreset_flags;
468 	uint32_t strreset_length;
469 	sctp_assoc_t strreset_assoc_id;
470 	uint16_t strreset_stream_list[];
471 };
472 
473 /* flags in stream_reset_event (strreset_flags) */
474 #define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
475 #define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
476 #define SCTP_STREAM_RESET_DENIED        0x0004
477 #define SCTP_STREAM_RESET_FAILED        0x0008
478 
479 /*
480  * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
481  */
482 struct sctp_assoc_reset_event {
483 	uint16_t assocreset_type;
484 	uint16_t assocreset_flags;
485 	uint32_t assocreset_length;
486 	sctp_assoc_t assocreset_assoc_id;
487 	uint32_t assocreset_local_tsn;
488 	uint32_t assocreset_remote_tsn;
489 };
490 
491 #define SCTP_ASSOC_RESET_DENIED		0x0004
492 #define SCTP_ASSOC_RESET_FAILED		0x0008
493 
494 /*
495  * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
496  */
497 struct sctp_stream_change_event {
498 	uint16_t strchange_type;
499 	uint16_t strchange_flags;
500 	uint32_t strchange_length;
501 	sctp_assoc_t strchange_assoc_id;
502 	uint16_t strchange_instrms;
503 	uint16_t strchange_outstrms;
504 };
505 
506 #define SCTP_STREAM_CHANGE_DENIED	0x0004
507 #define SCTP_STREAM_CHANGE_FAILED	0x0008
508 
509 
510 /* SCTP notification event */
511 struct sctp_tlv {
512 	uint16_t sn_type;
513 	uint16_t sn_flags;
514 	uint32_t sn_length;
515 };
516 
517 union sctp_notification {
518 	struct sctp_tlv sn_header;
519 	struct sctp_assoc_change sn_assoc_change;
520 	struct sctp_paddr_change sn_paddr_change;
521 	struct sctp_remote_error sn_remote_error;
522 	struct sctp_send_failed sn_send_failed;
523 	struct sctp_shutdown_event sn_shutdown_event;
524 	struct sctp_adaptation_event sn_adaptation_event;
525 	/* compatibility same as above */
526 	struct sctp_adaption_event sn_adaption_event;
527 	struct sctp_pdapi_event sn_pdapi_event;
528 	struct sctp_authkey_event sn_auth_event;
529 	struct sctp_sender_dry_event sn_sender_dry_event;
530 	struct sctp_send_failed_event sn_send_failed_event;
531 	struct sctp_stream_reset_event sn_strreset_event;
532 	struct sctp_assoc_reset_event sn_assocreset_event;
533 	struct sctp_stream_change_event sn_strchange_event;
534 };
535 
536 /* notification types */
537 #define SCTP_ASSOC_CHANGE                       0x0001
538 #define SCTP_PEER_ADDR_CHANGE                   0x0002
539 #define SCTP_REMOTE_ERROR                       0x0003
540 #define SCTP_SEND_FAILED                        0x0004
541 #define SCTP_SHUTDOWN_EVENT                     0x0005
542 #define SCTP_ADAPTATION_INDICATION              0x0006
543 /* same as above */
544 #define SCTP_ADAPTION_INDICATION                0x0006
545 #define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
546 #define SCTP_AUTHENTICATION_EVENT               0x0008
547 #define SCTP_STREAM_RESET_EVENT                 0x0009
548 #define SCTP_SENDER_DRY_EVENT                   0x000a
549 #define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b	/* we don't send this */
550 #define SCTP_ASSOC_RESET_EVENT                  0x000c
551 #define SCTP_STREAM_CHANGE_EVENT                0x000d
552 #define SCTP_SEND_FAILED_EVENT                  0x000e
553 /*
554  * socket option structs
555  */
556 
557 struct sctp_paddrparams {
558 	struct sockaddr_storage spp_address;
559 	sctp_assoc_t spp_assoc_id;
560 	uint32_t spp_hbinterval;
561 	uint32_t spp_pathmtu;
562 	uint32_t spp_flags;
563 	uint32_t spp_ipv6_flowlabel;
564 	uint16_t spp_pathmaxrxt;
565 	uint8_t spp_dscp;
566 };
567 
568 #define spp_ipv4_tos spp_dscp
569 
570 #define SPP_HB_ENABLE		0x00000001
571 #define SPP_HB_DISABLE		0x00000002
572 #define SPP_HB_DEMAND		0x00000004
573 #define SPP_PMTUD_ENABLE	0x00000008
574 #define SPP_PMTUD_DISABLE	0x00000010
575 #define SPP_HB_TIME_IS_ZERO     0x00000080
576 #define SPP_IPV6_FLOWLABEL      0x00000100
577 #define SPP_DSCP                0x00000200
578 #define SPP_IPV4_TOS            SPP_DSCP
579 
580 struct sctp_paddrthlds {
581 	struct sockaddr_storage spt_address;
582 	sctp_assoc_t spt_assoc_id;
583 	uint16_t spt_pathmaxrxt;
584 	uint16_t spt_pathpfthld;
585 };
586 
587 struct sctp_paddrinfo {
588 	struct sockaddr_storage spinfo_address;
589 	sctp_assoc_t spinfo_assoc_id;
590 	int32_t spinfo_state;
591 	uint32_t spinfo_cwnd;
592 	uint32_t spinfo_srtt;
593 	uint32_t spinfo_rto;
594 	uint32_t spinfo_mtu;
595 };
596 
597 struct sctp_rtoinfo {
598 	sctp_assoc_t srto_assoc_id;
599 	uint32_t srto_initial;
600 	uint32_t srto_max;
601 	uint32_t srto_min;
602 };
603 
604 struct sctp_assocparams {
605 	sctp_assoc_t sasoc_assoc_id;
606 	uint32_t sasoc_peer_rwnd;
607 	uint32_t sasoc_local_rwnd;
608 	uint32_t sasoc_cookie_life;
609 	uint16_t sasoc_asocmaxrxt;
610 	uint16_t sasoc_number_peer_destinations;
611 };
612 
613 struct sctp_setprim {
614 	struct sockaddr_storage ssp_addr;
615 	sctp_assoc_t ssp_assoc_id;
616 	uint8_t ssp_padding[4];
617 };
618 
619 struct sctp_setpeerprim {
620 	struct sockaddr_storage sspp_addr;
621 	sctp_assoc_t sspp_assoc_id;
622 	uint8_t sspp_padding[4];
623 };
624 
625 struct sctp_getaddresses {
626 	sctp_assoc_t sget_assoc_id;
627 	/* addr is filled in for N * sockaddr_storage */
628 	struct sockaddr addr[1];
629 };
630 
631 struct sctp_status {
632 	sctp_assoc_t sstat_assoc_id;
633 	int32_t sstat_state;
634 	uint32_t sstat_rwnd;
635 	uint16_t sstat_unackdata;
636 	uint16_t sstat_penddata;
637 	uint16_t sstat_instrms;
638 	uint16_t sstat_outstrms;
639 	uint32_t sstat_fragmentation_point;
640 	struct sctp_paddrinfo sstat_primary;
641 };
642 
643 /*
644  * AUTHENTICATION support
645  */
646 /* SCTP_AUTH_CHUNK */
647 struct sctp_authchunk {
648 	uint8_t sauth_chunk;
649 };
650 
651 /* SCTP_AUTH_KEY */
652 struct sctp_authkey {
653 	sctp_assoc_t sca_assoc_id;
654 	uint16_t sca_keynumber;
655 	uint16_t sca_keylength;
656 	uint8_t sca_key[];
657 };
658 
659 /* SCTP_HMAC_IDENT */
660 struct sctp_hmacalgo {
661 	uint32_t shmac_number_of_idents;
662 	uint16_t shmac_idents[];
663 };
664 
665 /* AUTH hmac_id */
666 #define SCTP_AUTH_HMAC_ID_RSVD		0x0000
667 #define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
668 #define SCTP_AUTH_HMAC_ID_SHA256	0x0003
669 
670 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
671 struct 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 */
677 struct sctp_authchunks {
678 	sctp_assoc_t gauth_assoc_id;
679 	uint32_t gauth_number_of_chunks;
680 	uint8_t gauth_chunks[];
681 };
682 
683 struct sctp_assoc_value {
684 	sctp_assoc_t assoc_id;
685 	uint32_t assoc_value;
686 };
687 
688 struct sctp_cc_option {
689 	int option;
690 	struct sctp_assoc_value aid_value;
691 };
692 
693 struct sctp_stream_value {
694 	sctp_assoc_t assoc_id;
695 	uint16_t stream_id;
696 	uint16_t stream_value;
697 };
698 
699 struct sctp_assoc_ids {
700 	uint32_t gaids_number_of_ids;
701 	sctp_assoc_t gaids_assoc_id[];
702 };
703 
704 struct sctp_sack_info {
705 	sctp_assoc_t sack_assoc_id;
706 	uint32_t sack_delay;
707 	uint32_t sack_freq;
708 };
709 
710 struct 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 
721 struct sctp_udpencaps {
722 	struct sockaddr_storage sue_address;
723 	sctp_assoc_t sue_assoc_id;
724 	uint16_t sue_port;
725 };
726 
727 struct sctp_prstatus {
728 	sctp_assoc_t sprstat_assoc_id;
729 	uint16_t sprstat_sid;
730 	uint16_t sprstat_policy;
731 	uint64_t sprstat_abandoned_unsent;
732 	uint64_t sprstat_abandoned_sent;
733 };
734 
735 struct sctp_cwnd_args {
736 	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
737 	uint32_t cwnd_new_value;/* cwnd in k */
738 	uint32_t pseudo_cumack;
739 	uint16_t inflight;	/* flightsize in k */
740 	uint16_t cwnd_augment;	/* increment to it */
741 	uint8_t meets_pseudo_cumack;
742 	uint8_t need_new_pseudo_cumack;
743 	uint8_t cnt_in_send;
744 	uint8_t cnt_in_str;
745 };
746 
747 struct sctp_blk_args {
748 	uint32_t onsb;		/* in 1k bytes */
749 	uint32_t sndlen;	/* len of send being attempted */
750 	uint32_t peer_rwnd;	/* rwnd of peer */
751 	uint16_t send_sent_qcnt;/* chnk cnt */
752 	uint16_t stream_qcnt;	/* chnk cnt */
753 	uint16_t chunks_on_oque;/* chunks out */
754 	uint16_t flight_size;	/* flight size in k */
755 };
756 
757 /*
758  * Max we can reset in one setting, note this is dictated not by the define
759  * but the size of a mbuf cluster so don't change this define and think you
760  * can specify more. You must do multiple resets if you want to reset more
761  * than SCTP_MAX_EXPLICIT_STR_RESET.
762  */
763 #define SCTP_MAX_EXPLICT_STR_RESET   1000
764 
765 struct sctp_reset_streams {
766 	sctp_assoc_t srs_assoc_id;
767 	uint16_t srs_flags;
768 	uint16_t srs_number_streams;	/* 0 == ALL */
769 	uint16_t srs_stream_list[];	/* list if strrst_num_streams is not 0 */
770 };
771 
772 struct sctp_add_streams {
773 	sctp_assoc_t sas_assoc_id;
774 	uint16_t sas_instrms;
775 	uint16_t sas_outstrms;
776 };
777 
778 struct sctp_get_nonce_values {
779 	sctp_assoc_t gn_assoc_id;
780 	uint32_t gn_peers_tag;
781 	uint32_t gn_local_tag;
782 };
783 
784 /* Debugging logs */
785 struct sctp_str_log {
786 	void *stcb;		/* FIXME: LP64 issue */
787 	uint32_t n_tsn;
788 	uint32_t e_tsn;
789 	uint16_t n_sseq;
790 	uint16_t e_sseq;
791 	uint16_t strm;
792 };
793 
794 struct sctp_sb_log {
795 	void *stcb;		/* FIXME: LP64 issue */
796 	uint32_t so_sbcc;
797 	uint32_t stcb_sbcc;
798 	uint32_t incr;
799 };
800 
801 struct sctp_fr_log {
802 	uint32_t largest_tsn;
803 	uint32_t largest_new_tsn;
804 	uint32_t tsn;
805 };
806 
807 struct sctp_fr_map {
808 	uint32_t base;
809 	uint32_t cum;
810 	uint32_t high;
811 };
812 
813 struct sctp_rwnd_log {
814 	uint32_t rwnd;
815 	uint32_t send_size;
816 	uint32_t overhead;
817 	uint32_t new_rwnd;
818 };
819 
820 struct sctp_mbcnt_log {
821 	uint32_t total_queue_size;
822 	uint32_t size_change;
823 	uint32_t total_queue_mb_size;
824 	uint32_t mbcnt_change;
825 };
826 
827 struct sctp_sack_log {
828 	uint32_t cumack;
829 	uint32_t oldcumack;
830 	uint32_t tsn;
831 	uint16_t numGaps;
832 	uint16_t numDups;
833 };
834 
835 struct sctp_lock_log {
836 	void *sock;		/* FIXME: LP64 issue */
837 	void *inp;		/* FIXME: LP64 issue */
838 	uint8_t tcb_lock;
839 	uint8_t inp_lock;
840 	uint8_t info_lock;
841 	uint8_t sock_lock;
842 	uint8_t sockrcvbuf_lock;
843 	uint8_t socksndbuf_lock;
844 	uint8_t create_lock;
845 	uint8_t resv;
846 };
847 
848 struct sctp_rto_log {
849 	void *net;		/* FIXME: LP64 issue */
850 	uint32_t rtt;
851 };
852 
853 struct sctp_nagle_log {
854 	void *stcb;		/* FIXME: LP64 issue */
855 	uint32_t total_flight;
856 	uint32_t total_in_queue;
857 	uint16_t count_in_queue;
858 	uint16_t count_in_flight;
859 };
860 
861 struct sctp_sbwake_log {
862 	void *stcb;		/* FIXME: LP64 issue */
863 	uint16_t send_q;
864 	uint16_t sent_q;
865 	uint16_t flight;
866 	uint16_t wake_cnt;
867 	uint8_t stream_qcnt;	/* chnk cnt */
868 	uint8_t chunks_on_oque;	/* chunks out */
869 	uint8_t sbflags;
870 	uint8_t sctpflags;
871 };
872 
873 struct sctp_misc_info {
874 	uint32_t log1;
875 	uint32_t log2;
876 	uint32_t log3;
877 	uint32_t log4;
878 };
879 
880 struct sctp_log_closing {
881 	void *inp;		/* FIXME: LP64 issue */
882 	void *stcb;		/* FIXME: LP64 issue */
883 	uint32_t sctp_flags;
884 	uint16_t state;
885 	int16_t loc;
886 };
887 
888 struct sctp_mbuf_log {
889 	struct mbuf *mp;	/* FIXME: LP64 issue */
890 	caddr_t ext;
891 	caddr_t data;
892 	uint16_t size;
893 	uint8_t refcnt;
894 	uint8_t mbuf_flags;
895 };
896 
897 struct sctp_cwnd_log {
898 	uint64_t time_event;
899 	uint8_t from;
900 	uint8_t event_type;
901 	uint8_t resv[2];
902 	union {
903 		struct sctp_log_closing close;
904 		struct sctp_blk_args blk;
905 		struct sctp_cwnd_args cwnd;
906 		struct sctp_str_log strlog;
907 		struct sctp_fr_log fr;
908 		struct sctp_fr_map map;
909 		struct sctp_rwnd_log rwnd;
910 		struct sctp_mbcnt_log mbcnt;
911 		struct sctp_sack_log sack;
912 		struct sctp_lock_log lock;
913 		struct sctp_rto_log rto;
914 		struct sctp_sb_log sb;
915 		struct sctp_nagle_log nagle;
916 		struct sctp_sbwake_log wake;
917 		struct sctp_mbuf_log mb;
918 		struct sctp_misc_info misc;
919 	}     x;
920 };
921 
922 struct sctp_cwnd_log_req {
923 	int32_t num_in_log;	/* Number in log */
924 	int32_t num_ret;	/* Number returned */
925 	int32_t start_at;	/* start at this one */
926 	int32_t end_at;		/* end at this one */
927 	struct sctp_cwnd_log log[];
928 };
929 
930 struct sctp_timeval {
931 	uint32_t tv_sec;
932 	uint32_t tv_usec;
933 };
934 
935 struct sctpstat {
936 	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
937 							 * (TimeStamp) */
938 	/* MIB according to RFC 3873 */
939 	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
940 	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
941 	uint32_t sctps_restartestab;
942 	uint32_t sctps_collisionestab;
943 	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
944 	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
945 	uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
946 	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
947 	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
948 	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
949 	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
950 	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
951 	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
952 	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
953 	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
954 	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
955 	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
956 	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
957 	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
958 
959 	/* input statistics: */
960 	uint32_t sctps_recvpackets;	/* total input packets        */
961 	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
962 	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
963 	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
964 	uint32_t sctps_recvdata;/* total input DATA chunks    */
965 	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
966 	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
967 	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
968 	uint32_t sctps_recvecne;/* total input ECNE chunks    */
969 	uint32_t sctps_recvauth;/* total input AUTH chunks    */
970 	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
971 	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
972 					 * received */
973 	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
974 					 * received */
975 	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
976 	uint32_t sctps_recvexpress;	/* total fast path receives all one
977 					 * chunk */
978 	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
979 	uint32_t sctps_recvnocrc;
980 	uint32_t sctps_recvswcrc;
981 	uint32_t sctps_recvhwcrc;
982 
983 	/* output statistics: */
984 	uint32_t sctps_sendpackets;	/* total output packets       */
985 	uint32_t sctps_sendsacks;	/* total output SACKs         */
986 	uint32_t sctps_senddata;/* total output DATA chunks   */
987 	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
988 					 * chunks */
989 	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
990 					 * DATA chunks */
991 	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
992 						 * more than once to same
993 						 * chunk (u-del multi-fr
994 						 * algo). */
995 	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
996 	uint32_t sctps_sendecne;/* total output ECNE chunks    */
997 	uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
998 	uint32_t sctps_senderrors;	/* ip_output error counter */
999 	uint32_t sctps_sendnocrc;
1000 	uint32_t sctps_sendswcrc;
1001 	uint32_t sctps_sendhwcrc;
1002 	/* PCKDROPREP statistics: */
1003 	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
1004 	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
1005 	uint32_t sctps_pdrpmbda;/* P-drops with data */
1006 	uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
1007 	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
1008 					 * only */
1009 	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
1010 	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
1011 	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
1012 					 * said break */
1013 	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
1014 	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
1015 	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
1016 	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
1017 	uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
1018 	uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
1019 	/* timeouts */
1020 	uint32_t sctps_timoiterator;	/* Number of iterator timers that
1021 					 * fired */
1022 	uint32_t sctps_timodata;/* Number of T3 data time outs */
1023 	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
1024 					 * that fired */
1025 	uint32_t sctps_timoinit;/* Number of INIT timers that fired */
1026 	uint32_t sctps_timosack;/* Number of sack timers that fired */
1027 	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
1028 					 * fired */
1029 	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
1030 					 * fired */
1031 	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
1032 					 * fired */
1033 	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
1034 					 * its cookie secret */
1035 	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
1036 	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
1037 					 * fired */
1038 	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
1039 						 * timers that fired */
1040 	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
1041 					 * fired */
1042 	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
1043 					 * fired */
1044 	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
1045 					 * fired */
1046 	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
1047 					 * timer fired */
1048 	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
1049 					 * fired */
1050 	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
1051 	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
1052 	/* former early FR counters */
1053 	uint32_t sctps_spare[11];
1054 	/* others */
1055 	uint32_t sctps_hdrops;	/* packet shorter than header */
1056 	uint32_t sctps_badsum;	/* checksum error             */
1057 	uint32_t sctps_noport;	/* no endpoint for port       */
1058 	uint32_t sctps_badvtag;	/* bad v-tag                  */
1059 	uint32_t sctps_badsid;	/* bad SID                    */
1060 	uint32_t sctps_nomem;	/* no memory                  */
1061 	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
1062 						 * RTT window */
1063 	uint32_t sctps_markedretrans;
1064 	uint32_t sctps_naglesent;	/* nagle allowed sending      */
1065 	uint32_t sctps_naglequeued;	/* nagle doesn't allow sending */
1066 	uint32_t sctps_maxburstqueued;	/* max burst doesn't allow sending */
1067 	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
1068 					 * interface ring buffer OR we had a
1069 					 * send error and are queuing one
1070 					 * send. */
1071 	uint32_t sctps_windowprobed;	/* total number of window probes sent */
1072 	uint32_t sctps_lowlevelerr;	/* total times an output error causes
1073 					 * us to clamp down on next user send. */
1074 	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
1075 					 * caused from a user send from a user
1076 					 * invoked send not a sack response */
1077 	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
1078 					 * chunk limit reached */
1079 	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
1080 					 * limit reached */
1081 	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
1082 					 * cwnd */
1083 	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
1084 	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
1085 	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
1086 					 * of user data on primary */
1087 	uint32_t sctps_cmt_randry;	/* Same for above */
1088 	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
1089 	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
1090 	uint32_t sctps_sends_with_flags;	/* number of sends with
1091 						 * sinfo_flags !=0 */
1092 	uint32_t sctps_sends_with_unord;	/* number of unordered sends */
1093 	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
1094 	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
1095 						 * flag set */
1096 	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
1097 						 * drain called */
1098 	uint32_t sctps_protocol_drains_done;	/* number of times we did a
1099 						 * protocol drain */
1100 	uint32_t sctps_read_peeks;	/* Number of times recv was called
1101 					 * with peek */
1102 	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
1103 	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
1104 	uint32_t sctps_left_abandon;	/* Number of unread messages abandoned
1105 					 * by close */
1106 	uint32_t sctps_send_burst_avoid;	/* Unused */
1107 	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
1108 					 * max burst inflight to net */
1109 	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
1110 					 * fwd-tsn's */
1111 	uint32_t sctps_queue_upd_ecne;	/* Number of times we queued or
1112 					 * updated an ECN chunk on send queue */
1113 	uint32_t sctps_reserved[31];	/* Future ABI compat - remove int's
1114 					 * from here when adding new */
1115 };
1116 
1117 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
1118 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
1119 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1120 #define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
1121 #define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
1122 #else
1123 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
1124 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
1125 #endif
1126 /* The following macros are for handling MIB values, */
1127 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
1128 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
1129 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
1130 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
1131 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
1132 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
1133 
1134 union sctp_sockstore {
1135 	struct sockaddr_in sin;
1136 	struct sockaddr_in6 sin6;
1137 	struct sockaddr sa;
1138 };
1139 
1140 
1141 /***********************************/
1142 /* And something for us old timers */
1143 /***********************************/
1144 
1145 #ifndef ntohll
1146 #include <sys/endian.h>
1147 #define ntohll(x) be64toh(x)
1148 #endif
1149 
1150 #ifndef htonll
1151 #include <sys/endian.h>
1152 #define htonll(x) htobe64(x)
1153 #endif
1154 /***********************************/
1155 
1156 
1157 struct xsctp_inpcb {
1158 	uint32_t last;
1159 	uint32_t flags;
1160 	uint64_t features;
1161 	uint32_t total_sends;
1162 	uint32_t total_recvs;
1163 	uint32_t total_nospaces;
1164 	uint32_t fragmentation_point;
1165 	uint16_t local_port;
1166 	uint16_t qlen;
1167 	uint16_t maxqlen;
1168 	void *socket;
1169 #if defined(__LP64__)
1170 	uint32_t extra_padding[29];	/* future */
1171 #else
1172 	uint32_t extra_padding[30];	/* future */
1173 #endif
1174 };
1175 
1176 struct xsctp_tcb {
1177 	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
1178 	uint32_t last;
1179 	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
1180 	uint32_t state;		/* sctpAssocEntry 8   */
1181 	uint32_t in_streams;	/* sctpAssocEntry 9   */
1182 	uint32_t out_streams;	/* sctpAssocEntry 10  */
1183 	uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
1184 	uint32_t primary_process;	/* sctpAssocEntry 12  */
1185 	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
1186 	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
1187 	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
1188 	uint32_t total_sends;
1189 	uint32_t total_recvs;
1190 	uint32_t local_tag;
1191 	uint32_t remote_tag;
1192 	uint32_t initial_tsn;
1193 	uint32_t highest_tsn;
1194 	uint32_t cumulative_tsn;
1195 	uint32_t cumulative_tsn_ack;
1196 	uint32_t mtu;
1197 	uint32_t refcnt;
1198 	uint16_t local_port;	/* sctpAssocEntry 3   */
1199 	uint16_t remote_port;	/* sctpAssocEntry 4   */
1200 	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
1201 	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
1202 	uint32_t peers_rwnd;
1203 	sctp_assoc_t assoc_id;	/* sctpAssocEntry 1   */
1204 	uint32_t extra_padding[32];	/* future */
1205 };
1206 
1207 struct xsctp_laddr {
1208 	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1209 	uint32_t last;
1210 	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1211 	uint32_t extra_padding[32];	/* future */
1212 };
1213 
1214 struct xsctp_raddr {
1215 	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1216 	uint32_t last;
1217 	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1218 	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1219 	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1220 	uint32_t error_counter;	/* */
1221 	uint32_t cwnd;		/* */
1222 	uint32_t flight_size;	/* */
1223 	uint32_t mtu;		/* */
1224 	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1225 	uint8_t confirmed;	/* */
1226 	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1227 	uint8_t potentially_failed;
1228 	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1229 	uint32_t rtt;
1230 	uint32_t heartbeat_interval;
1231 	uint32_t ssthresh;
1232 	uint32_t extra_padding[30];	/* future */
1233 };
1234 
1235 #define SCTP_MAX_LOGGING_SIZE 30000
1236 #define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1237 
1238 struct sctp_log_entry {
1239 	uint64_t timestamp;
1240 	uint32_t subsys;
1241 	uint32_t padding;
1242 	uint32_t params[SCTP_TRACE_PARAMS];
1243 };
1244 
1245 struct sctp_log {
1246 	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1247 	uint32_t index;
1248 	uint32_t padding;
1249 };
1250 
1251 /*
1252  * Kernel defined for sctp_send
1253  */
1254 #if defined(_KERNEL) || defined(__Userspace__)
1255 int
1256 sctp_lower_sosend(struct socket *so,
1257     struct sockaddr *addr,
1258     struct uio *uio,
1259     struct mbuf *i_pak,
1260     struct mbuf *control,
1261     int flags,
1262     struct sctp_sndrcvinfo *srcv
1263     ,struct thread *p
1264 );
1265 
1266 int
1267 sctp_sorecvmsg(struct socket *so,
1268     struct uio *uio,
1269     struct mbuf **mp,
1270     struct sockaddr *from,
1271     int fromlen,
1272     int *msg_flags,
1273     struct sctp_sndrcvinfo *sinfo,
1274     int filling_sinfo);
1275 
1276 #endif
1277 
1278 /*
1279  * API system calls
1280  */
1281 #if !(defined(_KERNEL)) && !(defined(__Userspace__))
1282 
1283 __BEGIN_DECLS
1284 int sctp_peeloff(int, sctp_assoc_t);
1285 int sctp_bindx(int, struct sockaddr *, int, int);
1286 int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
1287 int sctp_getaddrlen(sa_family_t);
1288 int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
1289 void sctp_freepaddrs(struct sockaddr *);
1290 int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
1291 void sctp_freeladdrs(struct sockaddr *);
1292 int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
1293 
1294 /* deprecated */
1295 ssize_t
1296 sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
1297     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1298 
1299 /* deprecated */
1300 ssize_t
1301 sctp_send(int, const void *, size_t,
1302     const struct sctp_sndrcvinfo *, int);
1303 
1304 /* deprecated */
1305 ssize_t
1306 sctp_sendx(int, const void *, size_t, struct sockaddr *,
1307     int, struct sctp_sndrcvinfo *, int);
1308 
1309 /* deprecated */
1310 ssize_t
1311 sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
1312     int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1313 
1314 sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
1315 
1316 /* deprecated */
1317 ssize_t
1318 sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
1319     struct sctp_sndrcvinfo *, int *);
1320 
1321 ssize_t
1322 sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
1323     int, void *, socklen_t, unsigned int, int);
1324 
1325 ssize_t
1326 sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
1327     socklen_t *, void *, socklen_t *, unsigned int *, int *);
1328 
1329 __END_DECLS
1330 
1331 #endif				/* !_KERNEL */
1332 #endif				/* !__sctp_uio_h__ */
1333