xref: /freebsd/sys/netinet/sctp.h (revision aa0a1e58)
1 /*-
2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
3  * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
4  * Copyright (c) 2008-2011, 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 /* $KAME: sctp.h,v 1.18 2005/03/06 16:04:16 itojun Exp $	 */
33 
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36 
37 #ifndef _NETINET_SCTP_H_
38 #define _NETINET_SCTP_H_
39 
40 #include <sys/types.h>
41 
42 
43 #define SCTP_PACKED __attribute__((packed))
44 
45 /*
46  * SCTP protocol - RFC2960.
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;	/* Adler32 C-Sum */
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
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 
118 /*
119  * read-only options
120  */
121 #define SCTP_STATUS			0x00000100
122 #define SCTP_GET_PEER_ADDR_INFO		0x00000101
123 /* authentication support */
124 #define SCTP_PEER_AUTH_CHUNKS 		0x00000102
125 #define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
126 #define SCTP_GET_ASSOC_NUMBER           0x00000104	/* ro */
127 #define SCTP_GET_ASSOC_ID_LIST          0x00000105	/* ro */
128 #define SCTP_TIMEOUTS                   0x00000106
129 
130 /*
131  * user socket options: BSD implementation specific
132  */
133 /*
134  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
135  * model if this is turned on then the socket buffer is shared for send
136  * resources amongst all associations.  The default for the UDP model is that
137  * is SS_NBIO is set.  Which means all associations have a separate send
138  * limit BUT they will NOT ever BLOCK instead you will get an error back
139  * EAGAIN if you try to send too much. If you want the blocking semantics you
140  * set this option at the cost of sharing one socket send buffer size amongst
141  * all associations. Peeled off sockets turn this option off and block. But
142  * since both TCP and peeled off sockets have only one assoc per socket this
143  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
144  * model OR peeled off UDP model, but we do allow you to do so. You just use
145  * the normal syscall to toggle SS_NBIO the way you want.
146  *
147  * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
148  * field.
149  */
150 
151 /* these should probably go into sockets API */
152 #define SCTP_RESET_STREAMS		0x00001004	/* wo */
153 
154 
155 /* here on down are more implementation specific */
156 #define SCTP_SET_DEBUG_LEVEL		0x00001005
157 #define SCTP_CLR_STAT_LOG               0x00001007
158 /* CMT ON/OFF socket option */
159 #define SCTP_CMT_ON_OFF                 0x00001200
160 #define SCTP_CMT_USE_DAC                0x00001201
161 /* JRS - Pluggable Congestion Control Socket option */
162 #define SCTP_PLUGGABLE_CC               0x00001202
163 /* RS - Pluggable Stream Scheduling Socket option */
164 #define SCTP_PLUGGABLE_SS		0x00001203
165 #define SCTP_SS_VALUE			0x00001204
166 #define SCTP_CC_OPTION			0x00001205	/* Options for CC
167 							 * modules */
168 /* read only */
169 #define SCTP_GET_SNDBUF_USE		0x00001101
170 #define SCTP_GET_STAT_LOG		0x00001103
171 #define SCTP_PCB_STATUS			0x00001104
172 #define SCTP_GET_NONCE_VALUES           0x00001105
173 
174 
175 /* Special hook for dynamically setting primary for all assoc's,
176  * this is a write only option that requires root privilege.
177  */
178 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
179 
180 /* VRF (virtual router feature) and multi-VRF support
181  * options. VRF's provide splits within a router
182  * that give the views of multiple routers. A
183  * standard host, without VRF support, is just
184  * a single VRF. If VRF's are supported then
185  * the transport must be VRF aware. This means
186  * that every socket call coming in must be directed
187  * within the endpoint to one of the VRF's it belongs
188  * to. The endpoint, before binding, may select
189  * the "default" VRF it is in by using a set socket
190  * option with SCTP_VRF_ID. This will also
191  * get propagated to the default VRF. Once the
192  * endpoint binds an address then it CANNOT add
193  * additional VRF's to become a Multi-VRF endpoint.
194  *
195  * Before BINDING additional VRF's can be added with
196  * the SCTP_ADD_VRF_ID call or deleted with
197  * SCTP_DEL_VRF_ID.
198  *
199  * Associations are ALWAYS contained inside a single
200  * VRF. They cannot reside in two (or more) VRF's. Incoming
201  * packets, assuming the router is VRF aware, can always
202  * tell us what VRF they arrived on. A host not supporting
203  * any VRF's will find that the packets always arrived on the
204  * single VRF that the host has.
205  *
206  */
207 
208 #define SCTP_VRF_ID			0x00003001
209 #define SCTP_ADD_VRF_ID			0x00003002
210 #define SCTP_GET_VRF_IDS		0x00003003
211 #define SCTP_GET_ASOC_VRF               0x00003004
212 #define SCTP_DEL_VRF_ID                 0x00003005
213 
214 /*
215  * If you enable packet logging you can get
216  * a poor mans ethereal output in binary
217  * form. Note this is a compile option to
218  * the kernel,  SCTP_PACKET_LOGGING, and
219  * without it in your kernel you
220  * will get a EOPNOTSUPP
221  */
222 #define SCTP_GET_PACKET_LOG             0x00004001
223 
224 /*
225  * hidden implementation specific options these are NOT user visible (should
226  * move out of sctp.h)
227  */
228 /* sctp_bindx() flags as hidden socket options */
229 #define SCTP_BINDX_ADD_ADDR		0x00008001
230 #define SCTP_BINDX_REM_ADDR		0x00008002
231 /* Hidden socket option that gets the addresses */
232 #define SCTP_GET_PEER_ADDRESSES		0x00008003
233 #define SCTP_GET_LOCAL_ADDRESSES	0x00008004
234 /* return the total count in bytes needed to hold all local addresses bound */
235 #define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
236 /* Return the total count in bytes needed to hold the remote address */
237 #define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
238 /* hidden option for connectx */
239 #define SCTP_CONNECT_X			0x00008007
240 /* hidden option for connectx_delayed, part of sendx */
241 #define SCTP_CONNECT_X_DELAYED		0x00008008
242 #define SCTP_CONNECT_X_COMPLETE         0x00008009
243 /* hidden socket option based sctp_peeloff */
244 #define SCTP_PEELOFF                    0x0000800a
245 /* the real worker for sctp_getaddrlen() */
246 #define SCTP_GET_ADDR_LEN               0x0000800b
247 /* temporary workaround for Apple listen() issue, no args used */
248 #define SCTP_LISTEN_FIX			0x0000800c
249 /* Debug things that need to be purged */
250 #define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
251 
252 /* JRS - Supported congestion control modules for pluggable
253  * congestion control
254  */
255 /* Standard TCP Congestion Control */
256 #define SCTP_CC_RFC2581		0x00000000
257 /* High Speed TCP Congestion Control (Floyd) */
258 #define SCTP_CC_HSTCP		0x00000001
259 /* HTCP Congestion Control */
260 #define SCTP_CC_HTCP		0x00000002
261 /* RTCC Congestion Control - RFC2581 plus */
262 #define SCTP_CC_RTCC            0x00000003
263 
264 #define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
265 #define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
266 #define SCTP_CC_OPT_STEADY_STEP         0x00002002
267 
268 /* RS - Supported stream scheduling modules for pluggable
269  * stream scheduling
270  */
271 /* Default simple round-robin */
272 #define SCTP_SS_DEFAULT			0x00000000
273 /* Real round-robin */
274 #define SCTP_SS_ROUND_ROBIN		0x00000001
275 /* Real round-robin per packet */
276 #define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
277 /* Priority */
278 #define SCTP_SS_PRIORITY		0x00000003
279 /* Fair Bandwidth */
280 #define SCTP_SS_FAIR_BANDWITH		0x00000004
281 /* First-come, first-serve */
282 #define SCTP_SS_FIRST_COME		0x00000005
283 
284 
285 /* fragment interleave constants
286  * setting must be one of these or
287  * EINVAL returned.
288  */
289 #define SCTP_FRAG_LEVEL_0    0x00000000
290 #define SCTP_FRAG_LEVEL_1    0x00000001
291 #define SCTP_FRAG_LEVEL_2    0x00000002
292 
293 /*
294  * user state values
295  */
296 #define SCTP_CLOSED			0x0000
297 #define SCTP_BOUND			0x1000
298 #define SCTP_LISTEN			0x2000
299 #define SCTP_COOKIE_WAIT		0x0002
300 #define SCTP_COOKIE_ECHOED		0x0004
301 #define SCTP_ESTABLISHED		0x0008
302 #define SCTP_SHUTDOWN_SENT		0x0010
303 #define SCTP_SHUTDOWN_RECEIVED		0x0020
304 #define SCTP_SHUTDOWN_ACK_SENT		0x0040
305 #define SCTP_SHUTDOWN_PENDING		0x0080
306 
307 /*
308  * SCTP operational error codes (user visible)
309  */
310 #define SCTP_CAUSE_NO_ERROR		0x0000
311 #define SCTP_CAUSE_INVALID_STREAM	0x0001
312 #define SCTP_CAUSE_MISSING_PARAM	0x0002
313 #define SCTP_CAUSE_STALE_COOKIE		0x0003
314 #define SCTP_CAUSE_OUT_OF_RESC		0x0004
315 #define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
316 #define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
317 #define SCTP_CAUSE_INVALID_PARAM	0x0007
318 #define SCTP_CAUSE_UNRECOG_PARAM	0x0008
319 #define SCTP_CAUSE_NO_USER_DATA		0x0009
320 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
321 #define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
322 #define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
323 #define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
324 
325 /* Error causes from RFC5061 */
326 #define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
327 #define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
328 #define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
329 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
330 #define SCTP_CAUSE_REQUEST_REFUSED	0x00a4
331 
332 /* Error causes from nat-draft */
333 #define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
334 #define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
335 
336 /* Error causes from RFC4895 */
337 #define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
338 
339 /*
340  * error cause parameters (user visible)
341  */
342 struct sctp_error_cause {
343 	uint16_t code;
344 	uint16_t length;
345 	/* optional cause-specific info may follow */
346 }                SCTP_PACKED;
347 
348 struct sctp_error_invalid_stream {
349 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STREAM */
350 	uint16_t stream_id;	/* stream id of the DATA in error */
351 	uint16_t reserved;
352 }                         SCTP_PACKED;
353 
354 struct sctp_error_missing_param {
355 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARAM */
356 	uint32_t num_missing_params;	/* number of missing parameters */
357 	/* uint16_t param_type's follow */
358 }                        SCTP_PACKED;
359 
360 struct sctp_error_stale_cookie {
361 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE */
362 	uint32_t stale_time;	/* time in usec of staleness */
363 }                       SCTP_PACKED;
364 
365 struct sctp_error_out_of_resource {
366 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOURCES */
367 }                          SCTP_PACKED;
368 
369 struct sctp_error_unresolv_addr {
370 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
371 
372 }                        SCTP_PACKED;
373 
374 struct sctp_error_unrecognized_chunk {
375 	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRECOG_CHUNK */
376 	struct sctp_chunkhdr ch;/* header from chunk in error */
377 }                             SCTP_PACKED;
378 
379 /*
380  * Main SCTP chunk types we place these here so natd and f/w's in user land
381  * can find them.
382  */
383 /************0x00 series ***********/
384 #define SCTP_DATA		0x00
385 #define SCTP_INITIATION		0x01
386 #define SCTP_INITIATION_ACK	0x02
387 #define SCTP_SELECTIVE_ACK	0x03
388 #define SCTP_HEARTBEAT_REQUEST	0x04
389 #define SCTP_HEARTBEAT_ACK	0x05
390 #define SCTP_ABORT_ASSOCIATION	0x06
391 #define SCTP_SHUTDOWN		0x07
392 #define SCTP_SHUTDOWN_ACK	0x08
393 #define SCTP_OPERATION_ERROR	0x09
394 #define SCTP_COOKIE_ECHO	0x0a
395 #define SCTP_COOKIE_ACK		0x0b
396 #define SCTP_ECN_ECHO		0x0c
397 #define SCTP_ECN_CWR		0x0d
398 #define SCTP_SHUTDOWN_COMPLETE	0x0e
399 /* RFC4895 */
400 #define SCTP_AUTHENTICATION     0x0f
401 /* EY nr_sack chunk id*/
402 #define SCTP_NR_SELECTIVE_ACK 0x10
403 /************0x40 series ***********/
404 /************0x80 series ***********/
405 /* RFC5061 */
406 #define	SCTP_ASCONF_ACK		0x80
407 /* draft-ietf-stewart-pktdrpsctp */
408 #define SCTP_PACKET_DROPPED	0x81
409 /* draft-ietf-stewart-strreset-xxx */
410 #define SCTP_STREAM_RESET       0x82
411 
412 /* RFC4820                         */
413 #define SCTP_PAD_CHUNK          0x84
414 /************0xc0 series ***********/
415 /* RFC3758 */
416 #define SCTP_FORWARD_CUM_TSN	0xc0
417 /* RFC5061 */
418 #define SCTP_ASCONF		0xc1
419 
420 
421 /* ABORT and SHUTDOWN COMPLETE FLAG */
422 #define SCTP_HAD_NO_TCB		0x01
423 
424 /* Packet dropped flags */
425 #define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
426 #define SCTP_BADCRC		0x02
427 #define SCTP_PACKET_TRUNCATED	0x04
428 
429 /* Flag for ECN -CWR */
430 #define SCTP_CWR_REDUCE_OVERRIDE 0x01
431 #define SCTP_CWR_IN_SAME_WINDOW  0x02
432 
433 #define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
434 					 * time */
435 #define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
436 					 * in sat */
437 
438 /* Data Chuck Specific Flags */
439 #define SCTP_DATA_FRAG_MASK        0x03
440 #define SCTP_DATA_MIDDLE_FRAG      0x00
441 #define SCTP_DATA_LAST_FRAG        0x01
442 #define SCTP_DATA_FIRST_FRAG       0x02
443 #define SCTP_DATA_NOT_FRAG         0x03
444 #define SCTP_DATA_UNORDERED        0x04
445 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
446 /* ECN Nonce: SACK Chunk Specific Flags */
447 #define SCTP_SACK_NONCE_SUM        0x01
448 
449 /* CMT DAC algorithm SACK flag */
450 #define SCTP_SACK_CMT_DAC          0x80
451 
452 /*
453  * PCB flags (in sctp_flags bitmask).
454  * Note the features and flags are meant
455  * for use by netstat.
456  */
457 #define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
458 #define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
459 #define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
460 #define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
461 #define SCTP_PCB_FLAGS_UNBOUND		0x00000010
462 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
463 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
464 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
465 /* TCP model support */
466 
467 #define SCTP_PCB_FLAGS_CONNECTED	0x00200000
468 #define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
469 #define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
470 #define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
471 #define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
472 #define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
473 #define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
474 #define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
475 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
476 #define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
477 /* flags to copy to new PCB */
478 #define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
479 					 SCTP_PCB_FLAGS_WAKEINPUT|\
480 					 SCTP_PCB_FLAGS_BOUND_V6)
481 
482 
483 /*
484  * PCB Features (in sctp_features bitmask)
485  */
486 #define SCTP_PCB_FLAGS_EXT_RCVINFO      0x00000002
487 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT  0x00000004
488 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE  0x00000008
489 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS	0x00000010
490 #define SCTP_PCB_FLAGS_DO_ASCONF	0x00000020
491 #define SCTP_PCB_FLAGS_AUTO_ASCONF	0x00000040
492 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE 0x00000080
493 /* socket options */
494 #define SCTP_PCB_FLAGS_NODELAY		0x00000100
495 #define SCTP_PCB_FLAGS_AUTOCLOSE	0x00000200
496 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT	0x00000400
497 #define SCTP_PCB_FLAGS_RECVASSOCEVNT	0x00000800
498 #define SCTP_PCB_FLAGS_RECVPADDREVNT	0x00001000
499 #define SCTP_PCB_FLAGS_RECVPEERERR	0x00002000
500 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT	0x00004000
501 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT	0x00008000
502 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT	0x00010000
503 #define SCTP_PCB_FLAGS_PDAPIEVNT	0x00020000
504 #define SCTP_PCB_FLAGS_AUTHEVNT		0x00040000
505 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x00080000
506 #define SCTP_PCB_FLAGS_NO_FRAGMENT	0x00100000
507 #define SCTP_PCB_FLAGS_EXPLICIT_EOR     0x00400000
508 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4	0x00800000
509 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS	0x01000000
510 #define SCTP_PCB_FLAGS_PORTREUSE        0x02000000
511 #define SCTP_PCB_FLAGS_DRYEVNT          0x04000000
512 /*-
513  * mobility_features parameters (by micchie).Note
514  * these features are applied against the
515  * sctp_mobility_features flags.. not the sctp_features
516  * flags.
517  */
518 #define SCTP_MOBILITY_BASE		0x00000001
519 #define SCTP_MOBILITY_FASTHANDOFF	0x00000002
520 #define SCTP_MOBILITY_PRIM_DELETED	0x00000004
521 
522 
523 #define SCTP_SMALLEST_PMTU 512	/* smallest pmtu allowed when disabling PMTU
524 				 * discovery */
525 
526 #include <netinet/sctp_uio.h>
527 
528 /* This dictates the size of the packet
529  * collection buffer. This only applies
530  * if SCTP_PACKET_LOGGING is enabled in
531  * your config.
532  */
533 #define SCTP_PACKET_LOG_SIZE 65536
534 
535 /* Maximum delays and such a user can set for options that
536  * take ms.
537  */
538 #define SCTP_MAX_SACK_DELAY 500	/* per RFC4960 */
539 #define SCTP_MAX_HB_INTERVAL 14400000	/* 4 hours in ms */
540 #define SCTP_MAX_COOKIE_LIFE  3600000	/* 1 hour in ms */
541 
542 
543 /* Types of logging/KTR tracing  that can be enabled via the
544  * sysctl net.inet.sctp.sctp_logging. You must also enable
545  * SUBSYS tracing.
546  * Note that you must have the SCTP option in the kernel
547  * to enable these as well.
548  */
549 #define SCTP_BLK_LOGGING_ENABLE				0x00000001
550 #define SCTP_CWND_MONITOR_ENABLE			0x00000002
551 #define SCTP_CWND_LOGGING_ENABLE			0x00000004
552 #define SCTP_EARLYFR_LOGGING_ENABLE			0x00000010
553 #define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
554 #define SCTP_FR_LOGGING_ENABLE				0x00000040
555 #define SCTP_LOCK_LOGGING_ENABLE			0x00000080
556 #define SCTP_MAP_LOGGING_ENABLE				0x00000100
557 #define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
558 #define SCTP_MBUF_LOGGING_ENABLE			0x00000400
559 #define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
560 #define SCTP_RECV_RWND_LOGGING_ENABLE		0x00001000
561 #define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
562 #define SCTP_SACK_LOGGING_ENABLE			0x00004000
563 #define SCTP_SACK_RWND_LOGGING_ENABLE		0x00008000
564 #define SCTP_SB_LOGGING_ENABLE				0x00010000
565 #define SCTP_STR_LOGGING_ENABLE				0x00020000
566 #define SCTP_WAKE_LOGGING_ENABLE			0x00040000
567 #define SCTP_LOG_MAXBURST_ENABLE			0x00080000
568 #define SCTP_LOG_RWND_ENABLE    			0x00100000
569 #define SCTP_LOG_SACK_ARRIVALS_ENABLE       0x00200000
570 #define SCTP_LTRACE_CHUNK_ENABLE            0x00400000
571 #define SCTP_LTRACE_ERROR_ENABLE            0x00800000
572 #define SCTP_LAST_PACKET_TRACING            0x01000000
573 #define SCTP_THRESHOLD_LOGGING              0x02000000
574 #define SCTP_LOG_AT_SEND_2_SCTP             0x04000000
575 #define SCTP_LOG_AT_SEND_2_OUTQ             0x08000000
576 #define SCTP_LOG_TRY_ADVANCE                0x10000000
577 
578 
579 #undef SCTP_PACKED
580 
581 #endif				/* !_NETINET_SCTP_H_ */
582