xref: /freebsd/sys/netinet/sctp.h (revision 9ecd54f24fe9fa373e07c9fd7c052deb2188f545)
1 /*-
2  * Copyright (c) 2001-2008, 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_H_
37 #define _NETINET_SCTP_H_
38 
39 
40 #include <sys/types.h>
41 
42 
43 #define SCTP_PACKED __attribute__((packed))
44 
45 /*
46  * SCTP protocol - RFC4960.
47  */
48 struct sctphdr {
49 	uint16_t src_port;	/* source port */
50 	uint16_t dest_port;	/* destination port */
51 	uint32_t v_tag;		/* verification tag of packet */
52 	uint32_t checksum;	/* CRC32C checksum */
53 	/* chunks follow... */
54 }       SCTP_PACKED;
55 
56 /*
57  * SCTP Chunks
58  */
59 struct sctp_chunkhdr {
60 	uint8_t chunk_type;	/* chunk type */
61 	uint8_t chunk_flags;	/* chunk flags */
62 	uint16_t chunk_length;	/* chunk length */
63 	/* optional params follow */
64 }             SCTP_PACKED;
65 
66 /*
67  * SCTP chunk parameters
68  */
69 struct sctp_paramhdr {
70 	uint16_t param_type;	/* parameter type */
71 	uint16_t param_length;	/* parameter length */
72 }             SCTP_PACKED;
73 
74 /*
75  * user socket options: socket API defined
76  */
77 /*
78  * read-write options
79  */
80 #define SCTP_RTOINFO			0x00000001
81 #define SCTP_ASSOCINFO			0x00000002
82 #define SCTP_INITMSG			0x00000003
83 #define SCTP_NODELAY			0x00000004
84 #define SCTP_AUTOCLOSE			0x00000005
85 #define SCTP_SET_PEER_PRIMARY_ADDR	0x00000006
86 #define SCTP_PRIMARY_ADDR		0x00000007
87 #define SCTP_ADAPTATION_LAYER		0x00000008
88 /* same as above */
89 #define SCTP_ADAPTION_LAYER		0x00000008
90 #define SCTP_DISABLE_FRAGMENTS		0x00000009
91 #define SCTP_PEER_ADDR_PARAMS 		0x0000000a
92 #define SCTP_DEFAULT_SEND_PARAM		0x0000000b
93 /* ancillary data/notification interest options */
94 #define SCTP_EVENTS			0x0000000c	/* deprecated */
95 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
96 #define SCTP_I_WANT_MAPPED_V4_ADDR	0x0000000d
97 #define SCTP_MAXSEG 			0x0000000e
98 #define SCTP_DELAYED_SACK               0x0000000f
99 #define SCTP_FRAGMENT_INTERLEAVE        0x00000010
100 #define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
101 /* authentication support */
102 #define SCTP_AUTH_CHUNK 		0x00000012
103 #define SCTP_AUTH_KEY 			0x00000013
104 #define SCTP_HMAC_IDENT 		0x00000014
105 #define SCTP_AUTH_ACTIVE_KEY 		0x00000015
106 #define SCTP_AUTH_DELETE_KEY 		0x00000016
107 #define SCTP_USE_EXT_RCVINFO		0x00000017
108 #define SCTP_AUTO_ASCONF		0x00000018	/* rw */
109 #define SCTP_MAXBURST			0x00000019	/* rw */
110 #define SCTP_MAX_BURST			0x00000019	/* rw */
111 /* assoc level context */
112 #define SCTP_CONTEXT                    0x0000001a	/* rw */
113 /* explicit EOR signalling */
114 #define SCTP_EXPLICIT_EOR               0x0000001b
115 #define SCTP_REUSE_PORT                 0x0000001c	/* rw */
116 #define SCTP_AUTH_DEACTIVATE_KEY	0x0000001d
117 #define SCTP_EVENT                      0x0000001e
118 #define SCTP_RECVRCVINFO                0x0000001f
119 #define SCTP_RECVNXTINFO                0x00000020
120 #define SCTP_DEFAULT_SNDINFO            0x00000021
121 #define SCTP_DEFAULT_PRINFO             0x00000022
122 #define SCTP_PEER_ADDR_THLDS            0x00000023
123 #define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
124 
125 /*
126  * read-only options
127  */
128 #define SCTP_STATUS			0x00000100
129 #define SCTP_GET_PEER_ADDR_INFO		0x00000101
130 /* authentication support */
131 #define SCTP_PEER_AUTH_CHUNKS 		0x00000102
132 #define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
133 #define SCTP_GET_ASSOC_NUMBER           0x00000104	/* ro */
134 #define SCTP_GET_ASSOC_ID_LIST          0x00000105	/* ro */
135 #define SCTP_TIMEOUTS                   0x00000106
136 
137 /*
138  * user socket options: BSD implementation specific
139  */
140 /*
141  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
142  * model if this is turned on then the socket buffer is shared for send
143  * resources amongst all associations.  The default for the UDP model is that
144  * is SS_NBIO is set.  Which means all associations have a separate send
145  * limit BUT they will NOT ever BLOCK instead you will get an error back
146  * EAGAIN if you try to send too much. If you want the blocking semantics you
147  * set this option at the cost of sharing one socket send buffer size amongst
148  * all associations. Peeled off sockets turn this option off and block. But
149  * since both TCP and peeled off sockets have only one assoc per socket this
150  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
151  * model OR peeled off UDP model, but we do allow you to do so. You just use
152  * the normal syscall to toggle SS_NBIO the way you want.
153  *
154  * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
155  * field.
156  */
157 
158 #define SCTP_ENABLE_STREAM_RESET	0x00000900	/* struct
159 							 * sctp_assoc_value */
160 #define SCTP_RESET_STREAMS		0x00000901	/* struct
161 							 * sctp_reset_streams */
162 #define SCTP_RESET_ASSOC		0x00000902	/* sctp_assoc_t */
163 #define SCTP_ADD_STREAMS		0x00000903	/* struct
164 							 * sctp_add_streams */
165 
166 /* For enable stream reset */
167 #define SCTP_ENABLE_RESET_STREAM_REQ 	0x00000001
168 #define SCTP_ENABLE_RESET_ASSOC_REQ 	0x00000002
169 #define SCTP_ENABLE_CHANGE_ASSOC_REQ 	0x00000004
170 #define SCTP_ENABLE_VALUE_MASK		0x00000007
171 /* For reset streams */
172 #define SCTP_STREAM_RESET_INCOMING	0x00000001
173 #define SCTP_STREAM_RESET_OUTGOING	0x00000002
174 
175 
176 /* here on down are more implementation specific */
177 #define SCTP_SET_DEBUG_LEVEL		0x00001005
178 #define SCTP_CLR_STAT_LOG               0x00001007
179 /* CMT ON/OFF socket option */
180 #define SCTP_CMT_ON_OFF                 0x00001200
181 #define SCTP_CMT_USE_DAC                0x00001201
182 /* JRS - Pluggable Congestion Control Socket option */
183 #define SCTP_PLUGGABLE_CC               0x00001202
184 /* RS - Pluggable Stream Scheduling Socket option */
185 #define SCTP_PLUGGABLE_SS		0x00001203
186 #define SCTP_SS_VALUE			0x00001204
187 #define SCTP_CC_OPTION			0x00001205	/* Options for CC
188 							 * modules */
189 /* read only */
190 #define SCTP_GET_SNDBUF_USE		0x00001101
191 #define SCTP_GET_STAT_LOG		0x00001103
192 #define SCTP_PCB_STATUS			0x00001104
193 #define SCTP_GET_NONCE_VALUES           0x00001105
194 
195 
196 /* Special hook for dynamically setting primary for all assoc's,
197  * this is a write only option that requires root privilege.
198  */
199 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
200 
201 /* VRF (virtual router feature) and multi-VRF support
202  * options. VRF's provide splits within a router
203  * that give the views of multiple routers. A
204  * standard host, without VRF support, is just
205  * a single VRF. If VRF's are supported then
206  * the transport must be VRF aware. This means
207  * that every socket call coming in must be directed
208  * within the endpoint to one of the VRF's it belongs
209  * to. The endpoint, before binding, may select
210  * the "default" VRF it is in by using a set socket
211  * option with SCTP_VRF_ID. This will also
212  * get propagated to the default VRF. Once the
213  * endpoint binds an address then it CANNOT add
214  * additional VRF's to become a Multi-VRF endpoint.
215  *
216  * Before BINDING additional VRF's can be added with
217  * the SCTP_ADD_VRF_ID call or deleted with
218  * SCTP_DEL_VRF_ID.
219  *
220  * Associations are ALWAYS contained inside a single
221  * VRF. They cannot reside in two (or more) VRF's. Incoming
222  * packets, assuming the router is VRF aware, can always
223  * tell us what VRF they arrived on. A host not supporting
224  * any VRF's will find that the packets always arrived on the
225  * single VRF that the host has.
226  *
227  */
228 
229 #define SCTP_VRF_ID			0x00003001
230 #define SCTP_ADD_VRF_ID			0x00003002
231 #define SCTP_GET_VRF_IDS		0x00003003
232 #define SCTP_GET_ASOC_VRF               0x00003004
233 #define SCTP_DEL_VRF_ID                 0x00003005
234 
235 /*
236  * If you enable packet logging you can get
237  * a poor mans ethereal output in binary
238  * form. Note this is a compile option to
239  * the kernel,  SCTP_PACKET_LOGGING, and
240  * without it in your kernel you
241  * will get a EOPNOTSUPP
242  */
243 #define SCTP_GET_PACKET_LOG             0x00004001
244 
245 /*
246  * hidden implementation specific options these are NOT user visible (should
247  * move out of sctp.h)
248  */
249 /* sctp_bindx() flags as hidden socket options */
250 #define SCTP_BINDX_ADD_ADDR		0x00008001
251 #define SCTP_BINDX_REM_ADDR		0x00008002
252 /* Hidden socket option that gets the addresses */
253 #define SCTP_GET_PEER_ADDRESSES		0x00008003
254 #define SCTP_GET_LOCAL_ADDRESSES	0x00008004
255 /* return the total count in bytes needed to hold all local addresses bound */
256 #define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
257 /* Return the total count in bytes needed to hold the remote address */
258 #define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
259 /* hidden option for connectx */
260 #define SCTP_CONNECT_X			0x00008007
261 /* hidden option for connectx_delayed, part of sendx */
262 #define SCTP_CONNECT_X_DELAYED		0x00008008
263 #define SCTP_CONNECT_X_COMPLETE         0x00008009
264 /* hidden socket option based sctp_peeloff */
265 #define SCTP_PEELOFF                    0x0000800a
266 /* the real worker for sctp_getaddrlen() */
267 #define SCTP_GET_ADDR_LEN               0x0000800b
268 /* Debug things that need to be purged */
269 #define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
270 
271 /* JRS - Supported congestion control modules for pluggable
272  * congestion control
273  */
274 /* Standard TCP Congestion Control */
275 #define SCTP_CC_RFC2581		0x00000000
276 /* High Speed TCP Congestion Control (Floyd) */
277 #define SCTP_CC_HSTCP		0x00000001
278 /* HTCP Congestion Control */
279 #define SCTP_CC_HTCP		0x00000002
280 /* RTCC Congestion Control - RFC2581 plus */
281 #define SCTP_CC_RTCC            0x00000003
282 
283 #define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
284 #define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
285 #define SCTP_CC_OPT_STEADY_STEP         0x00002002
286 
287 #define SCTP_CMT_OFF            0
288 #define SCTP_CMT_BASE           1
289 #define SCTP_CMT_RPV1           2
290 #define SCTP_CMT_RPV2           3
291 #define SCTP_CMT_MPTCP          4
292 #define SCTP_CMT_MAX            SCTP_CMT_MPTCP
293 
294 /* RS - Supported stream scheduling modules for pluggable
295  * stream scheduling
296  */
297 /* Default simple round-robin */
298 #define SCTP_SS_DEFAULT			0x00000000
299 /* Real round-robin */
300 #define SCTP_SS_ROUND_ROBIN		0x00000001
301 /* Real round-robin per packet */
302 #define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
303 /* Priority */
304 #define SCTP_SS_PRIORITY		0x00000003
305 /* Fair Bandwidth */
306 #define SCTP_SS_FAIR_BANDWITH		0x00000004
307 /* First-come, first-serve */
308 #define SCTP_SS_FIRST_COME		0x00000005
309 
310 
311 /* fragment interleave constants
312  * setting must be one of these or
313  * EINVAL returned.
314  */
315 #define SCTP_FRAG_LEVEL_0    0x00000000
316 #define SCTP_FRAG_LEVEL_1    0x00000001
317 #define SCTP_FRAG_LEVEL_2    0x00000002
318 
319 /*
320  * user state values
321  */
322 #define SCTP_CLOSED			0x0000
323 #define SCTP_BOUND			0x1000
324 #define SCTP_LISTEN			0x2000
325 #define SCTP_COOKIE_WAIT		0x0002
326 #define SCTP_COOKIE_ECHOED		0x0004
327 #define SCTP_ESTABLISHED		0x0008
328 #define SCTP_SHUTDOWN_SENT		0x0010
329 #define SCTP_SHUTDOWN_RECEIVED		0x0020
330 #define SCTP_SHUTDOWN_ACK_SENT		0x0040
331 #define SCTP_SHUTDOWN_PENDING		0x0080
332 
333 /*
334  * SCTP operational error codes (user visible)
335  */
336 #define SCTP_CAUSE_NO_ERROR		0x0000
337 #define SCTP_CAUSE_INVALID_STREAM	0x0001
338 #define SCTP_CAUSE_MISSING_PARAM	0x0002
339 #define SCTP_CAUSE_STALE_COOKIE		0x0003
340 #define SCTP_CAUSE_OUT_OF_RESC		0x0004
341 #define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
342 #define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
343 #define SCTP_CAUSE_INVALID_PARAM	0x0007
344 #define SCTP_CAUSE_UNRECOG_PARAM	0x0008
345 #define SCTP_CAUSE_NO_USER_DATA		0x0009
346 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
347 #define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
348 #define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
349 #define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
350 
351 /* Error causes from RFC5061 */
352 #define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
353 #define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
354 #define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
355 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
356 #define SCTP_CAUSE_REQUEST_REFUSED	0x00a4
357 
358 /* Error causes from nat-draft */
359 #define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
360 #define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
361 
362 /* Error causes from RFC4895 */
363 #define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
364 
365 /*
366  * error cause parameters (user visible)
367  */
368 struct sctp_gen_error_cause {
369 	uint16_t code;
370 	uint16_t length;
371 	uint8_t info[];
372 }                    SCTP_PACKED;
373 
374 struct sctp_error_cause {
375 	uint16_t code;
376 	uint16_t length;
377 	/* optional cause-specific info may follow */
378 }                SCTP_PACKED;
379 
380 struct sctp_error_invalid_stream {
381 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STREAM */
382 	uint16_t stream_id;	/* stream id of the DATA in error */
383 	uint16_t reserved;
384 }                         SCTP_PACKED;
385 
386 struct sctp_error_missing_param {
387 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARAM */
388 	uint32_t num_missing_params;	/* number of missing parameters */
389 	/* uint16_t param_type's follow */
390 }                        SCTP_PACKED;
391 
392 struct sctp_error_stale_cookie {
393 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE */
394 	uint32_t stale_time;	/* time in usec of staleness */
395 }                       SCTP_PACKED;
396 
397 struct sctp_error_out_of_resource {
398 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOURCES */
399 }                          SCTP_PACKED;
400 
401 struct sctp_error_unresolv_addr {
402 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
403 
404 }                        SCTP_PACKED;
405 
406 struct sctp_error_unrecognized_chunk {
407 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRECOG_CHUNK */
408 	struct sctp_chunkhdr ch;/* header from chunk in error */
409 }                             SCTP_PACKED;
410 
411 struct sctp_error_no_user_data {
412 	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_NO_USER_DATA */
413 	uint32_t tsn;		/* TSN of the empty data chunk */
414 }                       SCTP_PACKED;
415 
416 /*
417  * Main SCTP chunk types we place these here so natd and f/w's in user land
418  * can find them.
419  */
420 /************0x00 series ***********/
421 #define SCTP_DATA		0x00
422 #define SCTP_INITIATION		0x01
423 #define SCTP_INITIATION_ACK	0x02
424 #define SCTP_SELECTIVE_ACK	0x03
425 #define SCTP_HEARTBEAT_REQUEST	0x04
426 #define SCTP_HEARTBEAT_ACK	0x05
427 #define SCTP_ABORT_ASSOCIATION	0x06
428 #define SCTP_SHUTDOWN		0x07
429 #define SCTP_SHUTDOWN_ACK	0x08
430 #define SCTP_OPERATION_ERROR	0x09
431 #define SCTP_COOKIE_ECHO	0x0a
432 #define SCTP_COOKIE_ACK		0x0b
433 #define SCTP_ECN_ECHO		0x0c
434 #define SCTP_ECN_CWR		0x0d
435 #define SCTP_SHUTDOWN_COMPLETE	0x0e
436 /* RFC4895 */
437 #define SCTP_AUTHENTICATION     0x0f
438 /* EY nr_sack chunk id*/
439 #define SCTP_NR_SELECTIVE_ACK	0x10
440 /************0x40 series ***********/
441 /************0x80 series ***********/
442 /* RFC5061 */
443 #define	SCTP_ASCONF_ACK		0x80
444 /* draft-ietf-stewart-pktdrpsctp */
445 #define SCTP_PACKET_DROPPED	0x81
446 /* draft-ietf-stewart-strreset-xxx */
447 #define SCTP_STREAM_RESET       0x82
448 
449 /* RFC4820                         */
450 #define SCTP_PAD_CHUNK          0x84
451 /************0xc0 series ***********/
452 /* RFC3758 */
453 #define SCTP_FORWARD_CUM_TSN	0xc0
454 /* RFC5061 */
455 #define SCTP_ASCONF		0xc1
456 
457 
458 /* ABORT and SHUTDOWN COMPLETE FLAG */
459 #define SCTP_HAD_NO_TCB		0x01
460 
461 /* Packet dropped flags */
462 #define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
463 #define SCTP_BADCRC		0x02
464 #define SCTP_PACKET_TRUNCATED	0x04
465 
466 /* Flag for ECN -CWR */
467 #define SCTP_CWR_REDUCE_OVERRIDE 0x01
468 #define SCTP_CWR_IN_SAME_WINDOW  0x02
469 
470 #define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
471 					 * time */
472 #define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
473 					 * in sat */
474 
475 /* Data Chuck Specific Flags */
476 #define SCTP_DATA_FRAG_MASK        0x03
477 #define SCTP_DATA_MIDDLE_FRAG      0x00
478 #define SCTP_DATA_LAST_FRAG        0x01
479 #define SCTP_DATA_FIRST_FRAG       0x02
480 #define SCTP_DATA_NOT_FRAG         0x03
481 #define SCTP_DATA_UNORDERED        0x04
482 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
483 /* ECN Nonce: SACK Chunk Specific Flags */
484 #define SCTP_SACK_NONCE_SUM        0x01
485 
486 /* CMT DAC algorithm SACK flag */
487 #define SCTP_SACK_CMT_DAC          0x80
488 
489 /*
490  * PCB flags (in sctp_flags bitmask).
491  * Note the features and flags are meant
492  * for use by netstat.
493  */
494 #define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
495 #define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
496 #define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
497 #define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
498 #define SCTP_PCB_FLAGS_UNBOUND		0x00000010
499 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
500 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
501 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
502 /* TCP model support */
503 
504 #define SCTP_PCB_FLAGS_CONNECTED	0x00200000
505 #define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
506 #define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
507 #define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
508 #define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
509 #define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
510 #define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
511 #define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
512 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
513 #define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
514 
515 /* flags to copy to new PCB */
516 #define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
517 					 SCTP_PCB_FLAGS_WAKEINPUT|\
518 					 SCTP_PCB_FLAGS_BOUND_V6)
519 
520 /*
521  * PCB Features (in sctp_features bitmask)
522  */
523 #define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
524 #define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002	/* deprecated */
525 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
526 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
527 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
528 #define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
529 #define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
530 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
531 /* socket options */
532 #define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
533 #define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
534 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400	/* deprecated */
535 #define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
536 #define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
537 #define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
538 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000	/* deprecated */
539 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
540 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
541 #define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
542 #define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
543 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
544 #define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
545 #define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
546 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
547 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
548 #define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
549 #define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
550 #define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
551 #define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
552 #define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
553 #define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
554 #define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
555 
556 /*-
557  * mobility_features parameters (by micchie).Note
558  * these features are applied against the
559  * sctp_mobility_features flags.. not the sctp_features
560  * flags.
561  */
562 #define SCTP_MOBILITY_BASE               0x00000001
563 #define SCTP_MOBILITY_FASTHANDOFF        0x00000002
564 #define SCTP_MOBILITY_PRIM_DELETED       0x00000004
565 
566 
567 #define SCTP_SMALLEST_PMTU 512	/* smallest pmtu allowed when disabling PMTU
568 				 * discovery */
569 
570 #undef SCTP_PACKED
571 
572 #include <netinet/sctp_uio.h>
573 
574 /* This dictates the size of the packet
575  * collection buffer. This only applies
576  * if SCTP_PACKET_LOGGING is enabled in
577  * your config.
578  */
579 #define SCTP_PACKET_LOG_SIZE 65536
580 
581 /* Maximum delays and such a user can set for options that
582  * take ms.
583  */
584 #define SCTP_MAX_SACK_DELAY 500	/* per RFC4960 */
585 #define SCTP_MAX_HB_INTERVAL 14400000	/* 4 hours in ms */
586 #define SCTP_MAX_COOKIE_LIFE  3600000	/* 1 hour in ms */
587 
588 
589 /* Types of logging/KTR tracing  that can be enabled via the
590  * sysctl net.inet.sctp.sctp_logging. You must also enable
591  * SUBSYS tracing.
592  * Note that you must have the SCTP option in the kernel
593  * to enable these as well.
594  */
595 #define SCTP_BLK_LOGGING_ENABLE				0x00000001
596 #define SCTP_CWND_MONITOR_ENABLE			0x00000002
597 #define SCTP_CWND_LOGGING_ENABLE			0x00000004
598 #define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
599 #define SCTP_FR_LOGGING_ENABLE				0x00000040
600 #define SCTP_LOCK_LOGGING_ENABLE			0x00000080
601 #define SCTP_MAP_LOGGING_ENABLE				0x00000100
602 #define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
603 #define SCTP_MBUF_LOGGING_ENABLE			0x00000400
604 #define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
605 #define SCTP_RECV_RWND_LOGGING_ENABLE			0x00001000
606 #define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
607 #define SCTP_SACK_LOGGING_ENABLE			0x00004000
608 #define SCTP_SACK_RWND_LOGGING_ENABLE			0x00008000
609 #define SCTP_SB_LOGGING_ENABLE				0x00010000
610 #define SCTP_STR_LOGGING_ENABLE				0x00020000
611 #define SCTP_WAKE_LOGGING_ENABLE			0x00040000
612 #define SCTP_LOG_MAXBURST_ENABLE			0x00080000
613 #define SCTP_LOG_RWND_ENABLE    			0x00100000
614 #define SCTP_LOG_SACK_ARRIVALS_ENABLE			0x00200000
615 #define SCTP_LTRACE_CHUNK_ENABLE			0x00400000
616 #define SCTP_LTRACE_ERROR_ENABLE			0x00800000
617 #define SCTP_LAST_PACKET_TRACING			0x01000000
618 #define SCTP_THRESHOLD_LOGGING				0x02000000
619 #define SCTP_LOG_AT_SEND_2_SCTP				0x04000000
620 #define SCTP_LOG_AT_SEND_2_OUTQ				0x08000000
621 #define SCTP_LOG_TRY_ADVANCE				0x10000000
622 
623 #endif				/* !_NETINET_SCTP_H_ */
624