xref: /freebsd/sys/netinet/sctp_uio.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*-
2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * a) Redistributions of source code must retain the above copyright notice,
8  *   this list of conditions and the following disclaimer.
9  *
10  * b) Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *   the documentation and/or other materials provided with the distribution.
13  *
14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
15  *    contributors may be used to endorse or promote products derived
16  *    from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28  * THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /* $KAME: sctp_uio.h,v 1.11 2005/03/06 16:04:18 itojun Exp $	 */
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 
35 #ifndef __sctp_uio_h__
36 #define __sctp_uio_h__
37 
38 
39 #if ! defined(_KERNEL)
40 #include <stdint.h>
41 #endif
42 #include <sys/types.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
45 
46 typedef uint32_t sctp_assoc_t;
47 
48 /* On/Off setup for subscription to events */
49 struct sctp_event_subscribe {
50 	uint8_t sctp_data_io_event;
51 	uint8_t sctp_association_event;
52 	uint8_t sctp_address_event;
53 	uint8_t sctp_send_failure_event;
54 	uint8_t sctp_peer_error_event;
55 	uint8_t sctp_shutdown_event;
56 	uint8_t sctp_partial_delivery_event;
57 	uint8_t sctp_adaptation_layer_event;
58 	uint8_t sctp_authentication_event;
59 	uint8_t sctp_stream_reset_events;
60 };
61 
62 /* ancillary data types */
63 #define SCTP_INIT	0x0001
64 #define SCTP_SNDRCV	0x0002
65 #define SCTP_EXTRCV	0x0003
66 /*
67  * ancillary data structures
68  */
69 struct sctp_initmsg {
70 	uint32_t sinit_num_ostreams;
71 	uint32_t sinit_max_instreams;
72 	uint16_t sinit_max_attempts;
73 	uint16_t sinit_max_init_timeo;
74 };
75 
76 /* We add 96 bytes to the size of sctp_sndrcvinfo.
77  * This makes the current structure 128 bytes long
78  * which is nicely 64 bit aligned but also has room
79  * for us to add more and keep ABI compatability.
80  * For example, already we have the sctp_extrcvinfo
81  * when enabled which is 48 bytes.
82  */
83 
84 /*
85  * The assoc up needs a verfid
86  * all sendrcvinfo's need a verfid for SENDING only.
87  */
88 
89 
90 #define SCTP_ALIGN_RESV_PAD 96
91 #define SCTP_ALIGN_RESV_PAD_SHORT 80
92 
93 struct sctp_sndrcvinfo {
94 	uint16_t sinfo_stream;
95 	uint16_t sinfo_ssn;
96 	uint16_t sinfo_flags;
97 	uint16_t sinfo_pr_policy;
98 	uint32_t sinfo_ppid;
99 	uint32_t sinfo_context;
100 	uint32_t sinfo_timetolive;
101 	uint32_t sinfo_tsn;
102 	uint32_t sinfo_cumtsn;
103 	sctp_assoc_t sinfo_assoc_id;
104 	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
105 };
106 
107 struct sctp_extrcvinfo {
108 	uint16_t sinfo_stream;
109 	uint16_t sinfo_ssn;
110 	uint16_t sinfo_flags;
111 	uint16_t sinfo_pr_policy;
112 	uint32_t sinfo_ppid;
113 	uint32_t sinfo_context;
114 	uint32_t sinfo_timetolive;
115 	uint32_t sinfo_tsn;
116 	uint32_t sinfo_cumtsn;
117 	sctp_assoc_t sinfo_assoc_id;
118 	uint16_t sreinfo_next_flags;
119 	uint16_t sreinfo_next_stream;
120 	uint32_t sreinfo_next_aid;
121 	uint32_t sreinfo_next_length;
122 	uint32_t sreinfo_next_ppid;
123 	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
124 };
125 
126 #define SCTP_NO_NEXT_MSG           0x0000
127 #define SCTP_NEXT_MSG_AVAIL        0x0001
128 #define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
129 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
130 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
131 
132 struct sctp_snd_all_completes {
133 	uint16_t sall_stream;
134 	uint16_t sall_flags;
135 	uint32_t sall_ppid;
136 	uint32_t sall_context;
137 	uint32_t sall_num_sent;
138 	uint32_t sall_num_failed;
139 };
140 
141 /* Flags that go into the sinfo->sinfo_flags field */
142 #define SCTP_EOF 	  0x0100/* Start shutdown procedures */
143 #define SCTP_ABORT	  0x0200/* Send an ABORT to peer */
144 #define SCTP_UNORDERED 	  0x0400/* Message is un-ordered */
145 #define SCTP_ADDR_OVER	  0x0800/* Override the primary-address */
146 #define SCTP_SENDALL      0x1000/* Send this on all associations */
147 #define SCTP_EOR          0x2000/* end of message signal */
148 #define SCTP_PR_POLICY_VALID 0x4000	/* pr sctp policy valid */
149 
150 #define INVALID_SINFO_FLAG(x) (((x) & 0xffffff00 \
151                                     & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
152 				        SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR)) != 0)
153 /* for the endpoint */
154 
155 /* The lower byte is an enumeration of PR-SCTP policies */
156 #define SCTP_PR_SCTP_TTL  0x0001/* Time based PR-SCTP */
157 #define SCTP_PR_SCTP_BUF  0x0002/* Buffer based PR-SCTP */
158 #define SCTP_PR_SCTP_RTX  0x0003/* Number of retransmissions based PR-SCTP */
159 
160 #define PR_SCTP_POLICY(x)         ((x) & 0xff)
161 #define PR_SCTP_ENABLED(x)        (PR_SCTP_POLICY(x) != 0)
162 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
163 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
164 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
165 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)
166 /* Stat's */
167 struct sctp_pcbinfo {
168 	uint32_t ep_count;
169 	uint32_t asoc_count;
170 	uint32_t laddr_count;
171 	uint32_t raddr_count;
172 	uint32_t chk_count;
173 	uint32_t readq_count;
174 	uint32_t free_chunks;
175 	uint32_t stream_oque;
176 };
177 
178 struct sctp_sockstat {
179 	sctp_assoc_t ss_assoc_id;
180 	uint32_t ss_total_sndbuf;
181 	uint32_t ss_total_recv_buf;
182 };
183 
184 /*
185  * notification event structures
186  */
187 
188 /*
189  * association change event
190  */
191 struct sctp_assoc_change {
192 	uint16_t sac_type;
193 	uint16_t sac_flags;
194 	uint32_t sac_length;
195 	uint16_t sac_state;
196 	uint16_t sac_error;
197 	uint16_t sac_outbound_streams;
198 	uint16_t sac_inbound_streams;
199 	sctp_assoc_t sac_assoc_id;
200 };
201 
202 /* sac_state values */
203 #define SCTP_COMM_UP		0x0001
204 #define SCTP_COMM_LOST		0x0002
205 #define SCTP_RESTART		0x0003
206 #define SCTP_SHUTDOWN_COMP	0x0004
207 #define SCTP_CANT_STR_ASSOC	0x0005
208 
209 
210 /*
211  * Address event
212  */
213 struct sctp_paddr_change {
214 	uint16_t spc_type;
215 	uint16_t spc_flags;
216 	uint32_t spc_length;
217 	struct sockaddr_storage spc_aaddr;
218 	uint32_t spc_state;
219 	uint32_t spc_error;
220 	sctp_assoc_t spc_assoc_id;
221 	uint8_t spc_padding[4];
222 };
223 
224 /* paddr state values */
225 #define SCTP_ADDR_AVAILABLE	0x0001
226 #define SCTP_ADDR_UNREACHABLE	0x0002
227 #define SCTP_ADDR_REMOVED	0x0003
228 #define SCTP_ADDR_ADDED		0x0004
229 #define SCTP_ADDR_MADE_PRIM	0x0005
230 #define SCTP_ADDR_CONFIRMED	0x0006
231 
232 /*
233  * CAUTION: these are user exposed SCTP addr reachability states must be
234  * compatible with SCTP_ADDR states in sctp_constants.h
235  */
236 #ifdef SCTP_ACTIVE
237 #undef SCTP_ACTIVE
238 #endif
239 #define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
240 
241 #ifdef SCTP_INACTIVE
242 #undef SCTP_INACTIVE
243 #endif
244 #define SCTP_INACTIVE		0x0002	/* SCTP_ADDR_NOT_REACHABLE */
245 
246 #ifdef SCTP_UNCONFIRMED
247 #undef SCTP_UNCONFIRMED
248 #endif
249 #define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
250 
251 #ifdef SCTP_NOHEARTBEAT
252 #undef SCTP_NOHEARTBEAT
253 #endif
254 #define SCTP_NOHEARTBEAT	0x0040	/* SCTP_ADDR_NOHB */
255 
256 
257 /* remote error events */
258 struct sctp_remote_error {
259 	uint16_t sre_type;
260 	uint16_t sre_flags;
261 	uint32_t sre_length;
262 	uint16_t sre_error;
263 	sctp_assoc_t sre_assoc_id;
264 	uint8_t sre_data[4];
265 };
266 
267 /* data send failure event */
268 struct sctp_send_failed {
269 	uint16_t ssf_type;
270 	uint16_t ssf_flags;
271 	uint32_t ssf_length;
272 	uint32_t ssf_error;
273 	struct sctp_sndrcvinfo ssf_info;
274 	sctp_assoc_t ssf_assoc_id;
275 	uint8_t ssf_data[0];
276 };
277 
278 /* flag that indicates state of data */
279 #define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
280 #define SCTP_DATA_SENT		0x0002	/* on wire at failure */
281 
282 /* shutdown event */
283 struct sctp_shutdown_event {
284 	uint16_t sse_type;
285 	uint16_t sse_flags;
286 	uint32_t sse_length;
287 	sctp_assoc_t sse_assoc_id;
288 };
289 
290 /* Adaptation layer indication stuff */
291 struct sctp_adaptation_event {
292 	uint16_t sai_type;
293 	uint16_t sai_flags;
294 	uint32_t sai_length;
295 	uint32_t sai_adaptation_ind;
296 	sctp_assoc_t sai_assoc_id;
297 };
298 
299 struct sctp_setadaptation {
300 	uint32_t ssb_adaptation_ind;
301 };
302 
303 /* compatable old spelling */
304 struct sctp_adaption_event {
305 	uint16_t sai_type;
306 	uint16_t sai_flags;
307 	uint32_t sai_length;
308 	uint32_t sai_adaption_ind;
309 	sctp_assoc_t sai_assoc_id;
310 };
311 
312 struct sctp_setadaption {
313 	uint32_t ssb_adaption_ind;
314 };
315 
316 
317 /*
318  * Partial Delivery API event
319  */
320 struct sctp_pdapi_event {
321 	uint16_t pdapi_type;
322 	uint16_t pdapi_flags;
323 	uint32_t pdapi_length;
324 	uint32_t pdapi_indication;
325 	uint16_t pdapi_stream;
326 	uint16_t pdapi_seq;
327 	sctp_assoc_t pdapi_assoc_id;
328 };
329 
330 /* indication values */
331 #define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
332 
333 
334 /*
335  * authentication key event
336  */
337 struct sctp_authkey_event {
338 	uint16_t auth_type;
339 	uint16_t auth_flags;
340 	uint32_t auth_length;
341 	uint16_t auth_keynumber;
342 	uint16_t auth_altkeynumber;
343 	uint32_t auth_indication;
344 	sctp_assoc_t auth_assoc_id;
345 };
346 
347 /* indication values */
348 #define SCTP_AUTH_NEWKEY	0x0001
349 
350 
351 /*
352  * stream reset event
353  */
354 struct sctp_stream_reset_event {
355 	uint16_t strreset_type;
356 	uint16_t strreset_flags;
357 	uint32_t strreset_length;
358 	sctp_assoc_t strreset_assoc_id;
359 	uint16_t strreset_list[0];
360 };
361 
362 /* flags in strreset_flags field */
363 #define SCTP_STRRESET_INBOUND_STR  0x0001
364 #define SCTP_STRRESET_OUTBOUND_STR 0x0002
365 #define SCTP_STRRESET_ALL_STREAMS  0x0004
366 #define SCTP_STRRESET_STREAM_LIST  0x0008
367 #define SCTP_STRRESET_FAILED       0x0010
368 
369 
370 /* SCTP notification event */
371 struct sctp_tlv {
372 	uint16_t sn_type;
373 	uint16_t sn_flags;
374 	uint32_t sn_length;
375 };
376 
377 union sctp_notification {
378 	struct sctp_tlv sn_header;
379 	struct sctp_assoc_change sn_assoc_change;
380 	struct sctp_paddr_change sn_paddr_change;
381 	struct sctp_remote_error sn_remote_error;
382 	struct sctp_send_failed sn_send_failed;
383 	struct sctp_shutdown_event sn_shutdown_event;
384 	struct sctp_adaptation_event sn_adaptation_event;
385 	/* compatability same as above */
386 	struct sctp_adaption_event sn_adaption_event;
387 	struct sctp_pdapi_event sn_pdapi_event;
388 	struct sctp_authkey_event sn_auth_event;
389 	struct sctp_stream_reset_event sn_strreset_event;
390 };
391 
392 /* notification types */
393 #define SCTP_ASSOC_CHANGE		0x0001
394 #define SCTP_PEER_ADDR_CHANGE		0x0002
395 #define SCTP_REMOTE_ERROR		0x0003
396 #define SCTP_SEND_FAILED		0x0004
397 #define SCTP_SHUTDOWN_EVENT		0x0005
398 #define SCTP_ADAPTATION_INDICATION	0x0006
399 /* same as above */
400 #define SCTP_ADAPTION_INDICATION	0x0006
401 #define SCTP_PARTIAL_DELIVERY_EVENT	0x0007
402 #define SCTP_AUTHENTICATION_EVENT	0x0008
403 #define SCTP_STREAM_RESET_EVENT		0x0009
404 
405 
406 /*
407  * socket option structs
408  */
409 
410 struct sctp_paddrparams {
411 	struct sockaddr_storage spp_address;
412 	sctp_assoc_t spp_assoc_id;
413 	uint32_t spp_hbinterval;
414 	uint32_t spp_pathmtu;
415 	uint32_t spp_flags;
416 	uint32_t spp_ipv6_flowlabel;
417 	uint16_t spp_pathmaxrxt;
418 	uint8_t spp_ipv4_tos;
419 };
420 
421 #define SPP_HB_ENABLE		0x00000001
422 #define SPP_HB_DISABLE		0x00000002
423 #define SPP_HB_DEMAND		0x00000004
424 #define SPP_PMTUD_ENABLE	0x00000008
425 #define SPP_PMTUD_DISABLE	0x00000010
426 #define SPP_HB_TIME_IS_ZERO     0x00000080
427 #define SPP_IPV6_FLOWLABEL      0x00000100
428 #define SPP_IPV4_TOS            0x00000200
429 
430 struct sctp_paddrinfo {
431 	struct sockaddr_storage spinfo_address;
432 	sctp_assoc_t spinfo_assoc_id;
433 	int32_t spinfo_state;
434 	uint32_t spinfo_cwnd;
435 	uint32_t spinfo_srtt;
436 	uint32_t spinfo_rto;
437 	uint32_t spinfo_mtu;
438 };
439 
440 struct sctp_rtoinfo {
441 	sctp_assoc_t srto_assoc_id;
442 	uint32_t srto_initial;
443 	uint32_t srto_max;
444 	uint32_t srto_min;
445 };
446 
447 struct sctp_assocparams {
448 	sctp_assoc_t sasoc_assoc_id;
449 	uint32_t sasoc_peer_rwnd;
450 	uint32_t sasoc_local_rwnd;
451 	uint32_t sasoc_cookie_life;
452 	uint16_t sasoc_asocmaxrxt;
453 	uint16_t sasoc_number_peer_destinations;
454 };
455 
456 struct sctp_setprim {
457 	struct sockaddr_storage ssp_addr;
458 	sctp_assoc_t ssp_assoc_id;
459 	uint8_t ssp_padding[4];
460 };
461 
462 struct sctp_setpeerprim {
463 	struct sockaddr_storage sspp_addr;
464 	sctp_assoc_t sspp_assoc_id;
465 	uint8_t sspp_padding[4];
466 };
467 
468 struct sctp_getaddresses {
469 	sctp_assoc_t sget_assoc_id;
470 	/* addr is filled in for N * sockaddr_storage */
471 	struct sockaddr addr[1];
472 };
473 
474 struct sctp_setstrm_timeout {
475 	sctp_assoc_t ssto_assoc_id;
476 	uint32_t ssto_timeout;
477 	uint32_t ssto_streamid_start;
478 	uint32_t ssto_streamid_end;
479 };
480 
481 struct sctp_status {
482 	sctp_assoc_t sstat_assoc_id;
483 	int32_t sstat_state;
484 	uint32_t sstat_rwnd;
485 	uint16_t sstat_unackdata;
486 	uint16_t sstat_penddata;
487 	uint16_t sstat_instrms;
488 	uint16_t sstat_outstrms;
489 	uint32_t sstat_fragmentation_point;
490 	struct sctp_paddrinfo sstat_primary;
491 };
492 
493 /*
494  * AUTHENTICATION support
495  */
496 /* SCTP_AUTH_CHUNK */
497 struct sctp_authchunk {
498 	uint8_t sauth_chunk;
499 };
500 
501 /* SCTP_AUTH_KEY */
502 struct sctp_authkey {
503 	sctp_assoc_t sca_assoc_id;
504 	uint16_t sca_keynumber;
505 	uint8_t sca_key[0];
506 };
507 
508 /* SCTP_HMAC_IDENT */
509 struct sctp_hmacalgo {
510 	uint16_t shmac_idents[0];
511 };
512 
513 /* AUTH hmac_id */
514 #define SCTP_AUTH_HMAC_ID_RSVD		0x0000
515 #define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
516 #define SCTP_AUTH_HMAC_ID_MD5		0x0002	/* deprecated */
517 #define SCTP_AUTH_HMAC_ID_SHA256	0x0003
518 #define SCTP_AUTH_HMAC_ID_SHA224	0x0004
519 #define SCTP_AUTH_HMAC_ID_SHA384	0x0005
520 #define SCTP_AUTH_HMAC_ID_SHA512	0x0006
521 
522 
523 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
524 struct sctp_authkeyid {
525 	sctp_assoc_t scact_assoc_id;
526 	uint16_t scact_keynumber;
527 };
528 
529 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
530 struct sctp_authchunks {
531 	sctp_assoc_t gauth_assoc_id;
532 	uint8_t gauth_chunks[0];
533 };
534 
535 struct sctp_assoc_value {
536 	sctp_assoc_t assoc_id;
537 	uint32_t assoc_value;
538 };
539 
540 struct sctp_assoc_ids {
541 	sctp_assoc_t gaids_assoc_id[0];
542 };
543 
544 struct sctp_sack_info {
545 	sctp_assoc_t sack_assoc_id;
546 	uint32_t sack_delay;
547 	uint32_t sack_freq;
548 };
549 
550 struct sctp_cwnd_args {
551 	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
552 	uint32_t cwnd_new_value;/* cwnd in k */
553 	uint32_t inflight;	/* flightsize in k */
554 	uint32_t pseudo_cumack;
555 	uint32_t cwnd_augment;	/* increment to it */
556 	uint8_t meets_pseudo_cumack;
557 	uint8_t need_new_pseudo_cumack;
558 	uint8_t cnt_in_send;
559 	uint8_t cnt_in_str;
560 };
561 
562 struct sctp_blk_args {
563 	uint32_t onsb;		/* in 1k bytes */
564 	uint32_t sndlen;	/* len of send being attempted */
565 	uint32_t peer_rwnd;	/* rwnd of peer */
566 	uint16_t send_sent_qcnt;/* chnk cnt */
567 	uint16_t stream_qcnt;	/* chnk cnt */
568 	uint16_t chunks_on_oque;/* chunks out */
569 	uint16_t flight_size;	/* flight size in k */
570 };
571 
572 /*
573  * Max we can reset in one setting, note this is dictated not by the define
574  * but the size of a mbuf cluster so don't change this define and think you
575  * can specify more. You must do multiple resets if you want to reset more
576  * than SCTP_MAX_EXPLICIT_STR_RESET.
577  */
578 #define SCTP_MAX_EXPLICT_STR_RESET   1000
579 
580 #define SCTP_RESET_LOCAL_RECV  0x0001
581 #define SCTP_RESET_LOCAL_SEND  0x0002
582 #define SCTP_RESET_BOTH        0x0003
583 #define SCTP_RESET_TSN         0x0004
584 
585 struct sctp_stream_reset {
586 	sctp_assoc_t strrst_assoc_id;
587 	uint16_t strrst_flags;
588 	uint16_t strrst_num_streams;	/* 0 == ALL */
589 	uint16_t strrst_list[0];/* list if strrst_num_streams is not 0 */
590 };
591 
592 
593 struct sctp_get_nonce_values {
594 	sctp_assoc_t gn_assoc_id;
595 	uint32_t gn_peers_tag;
596 	uint32_t gn_local_tag;
597 };
598 
599 /* Debugging logs */
600 struct sctp_str_log {
601 	void *stcb;		/* FIXME: LP64 issue */
602 	uint32_t n_tsn;
603 	uint32_t e_tsn;
604 	uint16_t n_sseq;
605 	uint16_t e_sseq;
606 	uint16_t strm;
607 };
608 
609 struct sctp_sb_log {
610 	void *stcb;		/* FIXME: LP64 issue */
611 	uint32_t so_sbcc;
612 	uint32_t stcb_sbcc;
613 	uint32_t incr;
614 };
615 
616 struct sctp_fr_log {
617 	uint32_t largest_tsn;
618 	uint32_t largest_new_tsn;
619 	uint32_t tsn;
620 };
621 
622 struct sctp_fr_map {
623 	uint32_t base;
624 	uint32_t cum;
625 	uint32_t high;
626 };
627 
628 struct sctp_rwnd_log {
629 	uint32_t rwnd;
630 	uint32_t send_size;
631 	uint32_t overhead;
632 	uint32_t new_rwnd;
633 };
634 
635 struct sctp_mbcnt_log {
636 	uint32_t total_queue_size;
637 	uint32_t size_change;
638 	uint32_t total_queue_mb_size;
639 	uint32_t mbcnt_change;
640 };
641 
642 struct sctp_sack_log {
643 	uint32_t cumack;
644 	uint32_t oldcumack;
645 	uint32_t tsn;
646 	uint16_t numGaps;
647 	uint16_t numDups;
648 };
649 
650 struct sctp_lock_log {
651 	void *sock;		/* FIXME: LP64 issue */
652 	void *inp;		/* FIXME: LP64 issue */
653 	uint8_t tcb_lock;
654 	uint8_t inp_lock;
655 	uint8_t info_lock;
656 	uint8_t sock_lock;
657 	uint8_t sockrcvbuf_lock;
658 	uint8_t socksndbuf_lock;
659 	uint8_t create_lock;
660 	uint8_t resv;
661 };
662 
663 struct sctp_rto_log {
664 	void *net;		/* FIXME: LP64 issue */
665 	uint32_t rtt;
666 };
667 
668 struct sctp_nagle_log {
669 	void *stcb;		/* FIXME: LP64 issue */
670 	uint32_t total_flight;
671 	uint32_t total_in_queue;
672 	uint16_t count_in_queue;
673 	uint16_t count_in_flight;
674 };
675 
676 struct sctp_sbwake_log {
677 	void *stcb;		/* FIXME: LP64 issue */
678 	uint16_t send_q;
679 	uint16_t sent_q;
680 	uint16_t flight;
681 	uint16_t wake_cnt;
682 	uint8_t stream_qcnt;	/* chnk cnt */
683 	uint8_t chunks_on_oque;	/* chunks out */
684 	uint8_t sbflags;
685 	uint8_t sctpflags;
686 };
687 
688 struct sctp_misc_info {
689 	uint32_t log1;
690 	uint32_t log2;
691 	uint32_t log3;
692 	uint32_t log4;
693 };
694 
695 struct sctp_log_closing {
696 	void *inp;		/* FIXME: LP64 issue */
697 	void *stcb;		/* FIXME: LP64 issue */
698 	uint32_t sctp_flags;
699 	uint16_t state;
700 	int16_t loc;
701 };
702 
703 struct sctp_mbuf_log {
704 	struct mbuf *mp;	/* FIXME: LP64 issue */
705 	caddr_t ext;
706 	caddr_t data;
707 	uint16_t size;
708 	uint8_t refcnt;
709 	uint8_t mbuf_flags;
710 };
711 
712 struct sctp_cwnd_log {
713 	uint64_t time_event;
714 	uint8_t from;
715 	uint8_t event_type;
716 	uint8_t resv[2];
717 	union {
718 		struct sctp_log_closing close;
719 		struct sctp_blk_args blk;
720 		struct sctp_cwnd_args cwnd;
721 		struct sctp_str_log strlog;
722 		struct sctp_fr_log fr;
723 		struct sctp_fr_map map;
724 		struct sctp_rwnd_log rwnd;
725 		struct sctp_mbcnt_log mbcnt;
726 		struct sctp_sack_log sack;
727 		struct sctp_lock_log lock;
728 		struct sctp_rto_log rto;
729 		struct sctp_sb_log sb;
730 		struct sctp_nagle_log nagle;
731 		struct sctp_sbwake_log wake;
732 		struct sctp_mbuf_log mb;
733 		struct sctp_misc_info misc;
734 	}     x;
735 };
736 
737 struct sctp_cwnd_log_req {
738 	int32_t num_in_log;	/* Number in log */
739 	int32_t num_ret;	/* Number returned */
740 	int32_t start_at;	/* start at this one */
741 	int32_t end_at;		/* end at this one */
742 	struct sctp_cwnd_log log[0];
743 };
744 
745 struct sctp_timeval {
746 	uint32_t tv_sec;
747 	uint32_t tv_usec;
748 };
749 
750 struct sctpstat {
751 	/* MIB according to RFC 3873 */
752 	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
753 	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
754 	uint32_t sctps_restartestab;
755 	uint32_t sctps_collisionestab;
756 	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
757 	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
758 	uint32_t sctps_shutdown;/* sctpStats  5 (Counter32) */
759 	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
760 	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
761 	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
762 	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
763 	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
764 	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
765 	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
766 	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
767 	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
768 	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
769 	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
770 	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
771 
772 	/* input statistics: */
773 	uint32_t sctps_recvpackets;	/* total input packets        */
774 	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
775 	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
776 	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
777 	uint32_t sctps_recvdata;/* total input DATA chunks    */
778 	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
779 	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
780 	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
781 	uint32_t sctps_recvecne;/* total input ECNE chunks    */
782 	uint32_t sctps_recvauth;/* total input AUTH chunks    */
783 	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
784 	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
785 					 * received */
786 	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
787 					 * received */
788 	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
789 	uint32_t sctps_recvexpress;	/* total fast path receives all one
790 					 * chunk */
791 	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
792 	/* output statistics: */
793 	uint32_t sctps_sendpackets;	/* total output packets       */
794 	uint32_t sctps_sendsacks;	/* total output SACKs         */
795 	uint32_t sctps_senddata;/* total output DATA chunks   */
796 	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
797 					 * chunks */
798 	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
799 					 * DATA chunks */
800 	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
801 						 * more than once to same
802 						 * chunk (u-del multi-fr
803 						 * algo). */
804 	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
805 	uint32_t sctps_sendecne;/* total output ECNE chunks    */
806 	uint32_t sctps_sendauth;/* total output AUTH chunks FIXME   */
807 	uint32_t sctps_senderrors;	/* ip_output error counter */
808 	/* PCKDROPREP statistics: */
809 	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
810 	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
811 	uint32_t sctps_pdrpmbda;/* P-drops with data */
812 	uint32_t sctps_pdrpmbct;/* P-drops, non-data, non-endhost */
813 	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
814 					 * only */
815 	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
816 	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
817 	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
818 					 * said break */
819 	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
820 	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
821 	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
822 	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
823 	uint32_t sctps_pdrpbadd;/* P-drop, data did not match TSN */
824 	uint32_t sctps_pdrpmark;/* P-drop, TSN's marked for Fast Retran */
825 	/* timeouts */
826 	uint32_t sctps_timoiterator;	/* Number of iterator timers that
827 					 * fired */
828 	uint32_t sctps_timodata;/* Number of T3 data time outs */
829 	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
830 					 * that fired */
831 	uint32_t sctps_timoinit;/* Number of INIT timers that fired */
832 	uint32_t sctps_timosack;/* Number of sack timers that fired */
833 	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
834 					 * fired */
835 	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
836 					 * fired */
837 	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
838 					 * fired */
839 	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
840 					 * its cookie secret */
841 	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
842 	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
843 					 * fired */
844 	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
845 						 * timers that fired */
846 	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
847 					 * fired */
848 	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
849 					 * fired */
850 	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
851 					 * fired */
852 	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
853 					 * timer fired */
854 	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
855 					 * fired */
856 	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
857 	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
858 	/* Early fast retransmission counters */
859 	uint32_t sctps_earlyfrstart;
860 	uint32_t sctps_earlyfrstop;
861 	uint32_t sctps_earlyfrmrkretrans;
862 	uint32_t sctps_earlyfrstpout;
863 	uint32_t sctps_earlyfrstpidsck1;
864 	uint32_t sctps_earlyfrstpidsck2;
865 	uint32_t sctps_earlyfrstpidsck3;
866 	uint32_t sctps_earlyfrstpidsck4;
867 	uint32_t sctps_earlyfrstrid;
868 	uint32_t sctps_earlyfrstrout;
869 	uint32_t sctps_earlyfrstrtmr;
870 	/* otheres */
871 	uint32_t sctps_hdrops;	/* packet shorter than header */
872 	uint32_t sctps_badsum;	/* checksum error             */
873 	uint32_t sctps_noport;	/* no endpoint for port       */
874 	uint32_t sctps_badvtag;	/* bad v-tag                  */
875 	uint32_t sctps_badsid;	/* bad SID                    */
876 	uint32_t sctps_nomem;	/* no memory                  */
877 	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
878 						 * RTT window */
879 	uint32_t sctps_markedretrans;
880 	uint32_t sctps_naglesent;	/* nagle allowed sending      */
881 	uint32_t sctps_naglequeued;	/* nagle does't allow sending */
882 	uint32_t sctps_maxburstqueued;	/* max burst dosn't allow sending */
883 	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
884 					 * interface ring buffer OR we had a
885 					 * send error and are queuing one
886 					 * send. */
887 	uint32_t sctps_windowprobed;	/* total number of window probes sent */
888 	uint32_t sctps_lowlevelerr;	/* total times an output error causes
889 					 * us to clamp down on next user send. */
890 	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
891 					 * caused from a user send from a user
892 					 * invoked send not a sack response */
893 	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
894 					 * chunk limit reached */
895 	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
896 					 * limit reached */
897 	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
898 					 * cwnd */
899 	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
900 	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
901 	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
902 					 * of user data on primary */
903 	uint32_t sctps_cmt_randry;	/* Same for above */
904 	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
905 	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
906 	uint32_t sctps_sends_with_flags;	/* number of sends with
907 						 * sinfo_flags !=0 */
908 	uint32_t sctps_sends_with_unord /* number of undordered sends */ ;
909 	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
910 	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
911 						 * flag set */
912 	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
913 						 * drain called */
914 	uint32_t sctps_protocol_drains_done;	/* number of times we did a
915 						 * protocol drain */
916 	uint32_t sctps_read_peeks;	/* Number of times recv was called
917 					 * with peek */
918 	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
919 	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
920 	uint32_t sctps_left_abandon;	/* Number of unread message abandonded
921 					 * by close */
922 	uint32_t sctps_send_burst_avoid;	/* Send burst avoidance,
923 						 * already max burst inflight
924 						 * to net */
925 	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
926 					 * max burst inflight to net */
927 	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
928 					 * fwd-tsn's */
929 
930 	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
931 							 * (TimeStamp) */
932 };
933 
934 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
935 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
936 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&sctpstat._x, _d)
937 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&sctpstat._x, _d)
938 
939 /* The following macros are for handling MIB values, */
940 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
941 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
942 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
943 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
944 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
945 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
946 
947 union sctp_sockstore {
948 #if defined(INET) || !defined(_KERNEL)
949 	struct sockaddr_in sin;
950 #endif
951 #if defined(INET6) || !defined(_KERNEL)
952 	struct sockaddr_in6 sin6;
953 #endif
954 	struct sockaddr sa;
955 };
956 
957 struct xsctp_inpcb {
958 	uint32_t last;
959 	uint32_t flags;
960 	uint32_t features;
961 	uint32_t total_sends;
962 	uint32_t total_recvs;
963 	uint32_t total_nospaces;
964 	uint32_t fragmentation_point;
965 	uint16_t local_port;
966 	uint16_t qlen;
967 	uint16_t maxqlen;
968 };
969 
970 struct xsctp_tcb {
971 	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
972 	uint32_t last;
973 	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
974 	uint32_t state;		/* sctpAssocEntry 8   */
975 	uint32_t in_streams;	/* sctpAssocEntry 9   */
976 	uint32_t out_streams;	/* sctpAssocEntry 10  */
977 	uint32_t max_nr_retrans;/* sctpAssocEntry 11  */
978 	uint32_t primary_process;	/* sctpAssocEntry 12  */
979 	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
980 	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
981 	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
982 	uint32_t total_sends;
983 	uint32_t total_recvs;
984 	uint32_t local_tag;
985 	uint32_t remote_tag;
986 	uint32_t initial_tsn;
987 	uint32_t highest_tsn;
988 	uint32_t cumulative_tsn;
989 	uint32_t cumulative_tsn_ack;
990 	uint32_t mtu;
991 	uint32_t refcnt;
992 	uint16_t local_port;	/* sctpAssocEntry 3   */
993 	uint16_t remote_port;	/* sctpAssocEntry 4   */
994 	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
995 	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
996 };
997 
998 struct xsctp_laddr {
999 	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1000 	uint32_t last;
1001 	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1002 };
1003 
1004 struct xsctp_raddr {
1005 	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1006 	uint32_t last;
1007 	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1008 	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1009 	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1010 	uint32_t error_counter;	/* */
1011 	uint32_t cwnd;		/* */
1012 	uint32_t flight_size;	/* */
1013 	uint32_t mtu;		/* */
1014 	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1015 	uint8_t confirmed;	/* */
1016 	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1017 	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1018 };
1019 
1020 #define SCTP_MAX_LOGGING_SIZE 30000
1021 #define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1022 
1023 struct sctp_log_entry {
1024 	uint64_t timestamp;
1025 	uint32_t subsys;
1026 	uint32_t padding;
1027 	uint32_t params[SCTP_TRACE_PARAMS];
1028 };
1029 
1030 struct sctp_log {
1031 	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1032 	uint32_t index;
1033 	uint32_t padding;
1034 };
1035 
1036 /*
1037  * Kernel defined for sctp_send
1038  */
1039 #if defined(_KERNEL)
1040 int
1041 sctp_lower_sosend(struct socket *so,
1042     struct sockaddr *addr,
1043     struct uio *uio,
1044     struct mbuf *i_pak,
1045     struct mbuf *control,
1046     int flags,
1047     int use_rcvinfo,
1048     struct sctp_sndrcvinfo *srcv
1049     ,struct thread *p
1050 );
1051 
1052 int
1053 sctp_sorecvmsg(struct socket *so,
1054     struct uio *uio,
1055     struct mbuf **mp,
1056     struct sockaddr *from,
1057     int fromlen,
1058     int *msg_flags,
1059     struct sctp_sndrcvinfo *sinfo,
1060     int filling_sinfo);
1061 
1062 #endif
1063 
1064 /*
1065  * API system calls
1066  */
1067 #if !(defined(_KERNEL))
1068 
1069 __BEGIN_DECLS
1070 int sctp_peeloff __P((int, sctp_assoc_t));
1071 int sctp_bindx __P((int, struct sockaddr *, int, int));
1072 int sctp_connectx __P((int, const struct sockaddr *, int, sctp_assoc_t *));
1073 int sctp_getaddrlen __P((sa_family_t));
1074 int sctp_getpaddrs __P((int, sctp_assoc_t, struct sockaddr **));
1075 void sctp_freepaddrs __P((struct sockaddr *));
1076 int sctp_getladdrs __P((int, sctp_assoc_t, struct sockaddr **));
1077 void sctp_freeladdrs __P((struct sockaddr *));
1078 int sctp_opt_info __P((int, sctp_assoc_t, int, void *, socklen_t *));
1079 
1080 ssize_t sctp_sendmsg
1081 __P((int, const void *, size_t,
1082     const struct sockaddr *,
1083     socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
1084 
1085 	ssize_t sctp_send __P((int sd, const void *msg, size_t len,
1086               const struct sctp_sndrcvinfo *sinfo, int flags));
1087 
1088 	ssize_t sctp_sendx __P((int sd, const void *msg, size_t len,
1089                struct sockaddr *addrs, int addrcnt,
1090                struct sctp_sndrcvinfo *sinfo, int flags));
1091 
1092 	ssize_t sctp_sendmsgx __P((int sd, const void *, size_t,
1093                   struct sockaddr *, int,
1094                   uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));
1095 
1096 	sctp_assoc_t sctp_getassocid __P((int sd, struct sockaddr *sa));
1097 
1098 	ssize_t sctp_recvmsg __P((int, void *, size_t, struct sockaddr *,
1099                  socklen_t *, struct sctp_sndrcvinfo *, int *));
1100 
1101 __END_DECLS
1102 
1103 #endif				/* !_KERNEL */
1104 #endif				/* !__sctp_uio_h__ */
1105