xref: /freebsd/sys/netinet/sctp.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 /* $KAME: sctp.h,v 1.18 2005/03/06 16:04:16 itojun Exp $	 */
31 
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 
35 #ifndef _NETINET_SCTP_H_
36 #define _NETINET_SCTP_H_
37 
38 #include <sys/types.h>
39 
40 /*
41  * SCTP protocol - RFC2960.
42  */
43 struct sctphdr {
44 	uint16_t src_port;	/* source port */
45 	uint16_t dest_port;	/* destination port */
46 	uint32_t v_tag;		/* verification tag of packet */
47 	uint32_t checksum;	/* Adler32 C-Sum */
48 	/* chunks follow... */
49 }
50 
51 __attribute__((packed));
52 
53 /*
54  * SCTP Chunks
55  */
56 	struct sctp_chunkhdr {
57 		uint8_t chunk_type;	/* chunk type */
58 		uint8_t chunk_flags;	/* chunk flags */
59 		uint16_t chunk_length;	/* chunk length */
60 		/* optional params follow */
61 	}             __attribute__((packed));
62 
63 /*
64  * SCTP chunk parameters
65  */
66 	struct sctp_paramhdr {
67 		uint16_t param_type;	/* parameter type */
68 		uint16_t param_length;	/* parameter length */
69 	}             __attribute__((packed));
70 
71 /*
72  * user socket options: socket API defined
73  */
74 /*
75  * read-write options
76  */
77 #define SCTP_RTOINFO			0x00000001
78 #define SCTP_ASSOCINFO			0x00000002
79 #define SCTP_INITMSG			0x00000003
80 #define SCTP_NODELAY			0x00000004
81 #define SCTP_AUTOCLOSE			0x00000005
82 #define SCTP_SET_PEER_PRIMARY_ADDR	0x00000006
83 #define SCTP_PRIMARY_ADDR		0x00000007
84 #define SCTP_ADAPTATION_LAYER		0x00000008
85 /* same as above */
86 #define SCTP_ADAPTION_LAYER		0x00000008
87 #define SCTP_DISABLE_FRAGMENTS		0x00000009
88 #define SCTP_PEER_ADDR_PARAMS 		0x0000000a
89 #define SCTP_DEFAULT_SEND_PARAM		0x0000000b
90 /* ancillary data/notification interest options */
91 #define SCTP_EVENTS			0x0000000c
92 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
93 #define SCTP_I_WANT_MAPPED_V4_ADDR	0x0000000d
94 #define SCTP_MAXSEG 			0x0000000e
95 #define SCTP_DELAYED_SACK               0x0000000f
96 #define SCTP_FRAGMENT_INTERLEAVE        0x00000010
97 #define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
98 /* authentication support */
99 #define SCTP_AUTH_CHUNK 		0x00000012
100 #define SCTP_AUTH_KEY 			0x00000013
101 #define SCTP_HMAC_IDENT 		0x00000014
102 #define SCTP_AUTH_ACTIVE_KEY 		0x00000015
103 #define SCTP_AUTH_DELETE_KEY 		0x00000016
104 #define SCTP_USE_EXT_RCVINFO		0x00000017
105 #define SCTP_AUTO_ASCONF		0x00000018	/* rw */
106 #define SCTP_MAXBURST			0x00000019	/* rw */
107 #define SCTP_MAX_BURST			0x00000019	/* rw */
108 /* assoc level context */
109 #define SCTP_CONTEXT                    0x0000001a	/* rw */
110 /* explict EOR signalling */
111 #define SCTP_EXPLICIT_EOR               0x0000001b
112 
113 /*
114  * read-only options
115  */
116 #define SCTP_STATUS			0x00000100
117 #define SCTP_GET_PEER_ADDR_INFO		0x00000101
118 /* authentication support */
119 #define SCTP_PEER_AUTH_CHUNKS 		0x00000102
120 #define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
121 #define SCTP_GET_ASSOC_NUMBER           0x00000104	/* ro */
122 #define SCTP_GET_ASSOC_ID_LIST          0x00000105	/* ro */
123 
124 /*
125  * user socket options: BSD implementation specific
126  */
127 /*
128  * Blocking I/O is enabled on any TCP type socket by default. For the UDP
129  * model if this is turned on then the socket buffer is shared for send
130  * resources amongst all associations.  The default for the UDP model is that
131  * is SS_NBIO is set.  Which means all associations have a seperate send
132  * limit BUT they will NOT ever BLOCK instead you will get an error back
133  * EAGAIN if you try to send to much. If you want the blocking symantics you
134  * set this option at the cost of sharing one socket send buffer size amongst
135  * all associations. Peeled off sockets turn this option off and block. But
136  * since both TCP and peeled off sockets have only one assoc per socket this
137  * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
138  * model OR peeled off UDP model, but we do allow you to do so. You just use
139  * the normal syscall to toggle SS_NBIO the way you want.
140  *
141  * Blocking I/O is controled by the SS_NBIO flag on the socket state so_state
142  * field.
143  */
144 
145 /* these should probably go into sockets API */
146 #define SCTP_RESET_STREAMS		0x00001004	/* wo */
147 
148 
149 /* here on down are more implementation specific */
150 #define SCTP_SET_DEBUG_LEVEL		0x00001005
151 #define SCTP_CLR_STAT_LOG               0x00001007
152 /* CMT ON/OFF socket option */
153 #define SCTP_CMT_ON_OFF                 0x00001200
154 #define SCTP_CMT_USE_DAC                0x00001201
155 /* JRS - Pluggable Congestion Control Socket option */
156 #define SCTP_PLUGGABLE_CC				0x00001202
157 
158 /* read only */
159 #define SCTP_GET_SNDBUF_USE		0x00001101
160 #define SCTP_GET_STAT_LOG		0x00001103
161 #define SCTP_PCB_STATUS			0x00001104
162 #define SCTP_GET_NONCE_VALUES           0x00001105
163 
164 
165 /* Special hook for dynamically setting primary for all assoc's,
166  * this is a write only option that requires root privledge.
167  */
168 #define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
169 
170 /* VRF (virtual router feature) and multi-VRF support
171  * options. VRF's provide splits within a router
172  * that give the views of multiple routers. A
173  * standard host, without VRF support, is just
174  * a single VRF. If VRF's are supported then
175  * the transport must be VRF aware. This means
176  * that every socket call coming in must be directed
177  * within the endpoint to one of the VRF's it belongs
178  * to. The endpoint, before binding, may select
179  * the "default" VRF it is in by using a set socket
180  * option with SCTP_VRF_ID. This will also
181  * get propegated to the default VRF. Once the
182  * endpoint binds an address then it CANNOT add
183  * additional VRF's to become a Multi-VRF endpoint.
184  *
185  * Before BINDING additional VRF's can be added with
186  * the SCTP_ADD_VRF_ID call or deleted with
187  * SCTP_DEL_VRF_ID.
188  *
189  * Associations are ALWAYS contained inside a single
190  * VRF. They cannot reside in two (or more) VRF's. Incoming
191  * packets, assuming the router is VRF aware, can always
192  * tell us what VRF they arrived on. A host not supporting
193  * any VRF's will find that the packets always arrived on the
194  * single VRF that the host has.
195  *
196  */
197 
198 #define SCTP_VRF_ID			0x00003001
199 #define SCTP_ADD_VRF_ID			0x00003002
200 #define SCTP_GET_VRF_IDS		0x00003003
201 #define SCTP_GET_ASOC_VRF               0x00003004
202 #define SCTP_DEL_VRF_ID                 0x00003005
203 
204 /*
205  * If you enable packet logging you can get
206  * a poor mans ethereal output in binary
207  * form. Note this is a compile option to
208  * the kernel,  SCTP_PACKET_LOGGING, and
209  * without it in your kernel you
210  * will get a EOPNOTSUPP
211  */
212 #define SCTP_GET_PACKET_LOG             0x00004001
213 
214 /*
215  * hidden implementation specific options these are NOT user visible (should
216  * move out of sctp.h)
217  */
218 /* sctp_bindx() flags as hidden socket options */
219 #define SCTP_BINDX_ADD_ADDR		0x00008001
220 #define SCTP_BINDX_REM_ADDR		0x00008002
221 /* Hidden socket option that gets the addresses */
222 #define SCTP_GET_PEER_ADDRESSES		0x00008003
223 #define SCTP_GET_LOCAL_ADDRESSES	0x00008004
224 /* return the total count in bytes needed to hold all local addresses bound */
225 #define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
226 /* Return the total count in bytes needed to hold the remote address */
227 #define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
228 /* hidden option for connectx */
229 #define SCTP_CONNECT_X			0x00008007
230 /* hidden option for connectx_delayed, part of sendx */
231 #define SCTP_CONNECT_X_DELAYED		0x00008008
232 #define SCTP_CONNECT_X_COMPLETE         0x00008009
233 /* hidden socket option based sctp_peeloff */
234 #define SCTP_PEELOFF                    0x0000800a
235 /* the real worker for sctp_getaddrlen() */
236 #define SCTP_GET_ADDR_LEN               0x0000800b
237 /* temporary workaround for Apple listen() issue, no args used */
238 #define SCTP_LISTEN_FIX			0x0000800c
239 /* Debug things that need to be purged */
240 #define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
241 
242 /* JRS - Supported congestion control modules for pluggable
243  * congestion control
244  */
245 /* Standard TCP Congestion Control */
246 #define SCTP_CC_RFC2581		0x00000000
247 /* High Speed TCP Congestion Control (Floyd) */
248 #define SCTP_CC_HSTCP		0x00000001
249 /* HTCP Congestion Control */
250 #define SCTP_CC_HTCP		0x00000002
251 
252 
253 /* fragment interleave constants
254  * setting must be one of these or
255  * EINVAL returned.
256  */
257 #define SCTP_FRAG_LEVEL_0    0x00000000
258 #define SCTP_FRAG_LEVEL_1    0x00000001
259 #define SCTP_FRAG_LEVEL_2    0x00000002
260 
261 /*
262  * user state values
263  */
264 #define SCTP_CLOSED			0x0000
265 #define SCTP_BOUND			0x1000
266 #define SCTP_LISTEN			0x2000
267 #define SCTP_COOKIE_WAIT		0x0002
268 #define SCTP_COOKIE_ECHOED		0x0004
269 #define SCTP_ESTABLISHED		0x0008
270 #define SCTP_SHUTDOWN_SENT		0x0010
271 #define SCTP_SHUTDOWN_RECEIVED		0x0020
272 #define SCTP_SHUTDOWN_ACK_SENT		0x0040
273 #define SCTP_SHUTDOWN_PENDING		0x0080
274 
275 /*
276  * SCTP operational error codes (user visible)
277  */
278 #define SCTP_CAUSE_NO_ERROR		0x0000
279 #define SCTP_CAUSE_INVALID_STREAM	0x0001
280 #define SCTP_CAUSE_MISSING_PARAM	0x0002
281 #define SCTP_CAUSE_STALE_COOKIE		0x0003
282 #define SCTP_CAUSE_OUT_OF_RESC		0x0004
283 #define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
284 #define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
285 #define SCTP_CAUSE_INVALID_PARAM	0x0007
286 #define SCTP_CAUSE_UNRECOG_PARAM	0x0008
287 #define SCTP_CAUSE_NO_USER_DATA		0x0009
288 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
289 #define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
290 #define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
291 #define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
292 
293 /* Error causes from RFC5061 */
294 #define SCTP_CAUSE_DELETING_LAST_ADDR	0xa0
295 #define SCTP_CAUSE_RESOURCE_SHORTAGE	0xa1
296 #define SCTP_CAUSE_DELETING_SRC_ADDR	0xa2
297 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0xa3
298 #define SCTP_CAUSE_REQUEST_REFUSED	0xa4
299 
300 /* Error causes from RFC4895 */
301 #define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
302 
303 /*
304  * error cause parameters (user visisble)
305  */
306 	struct sctp_error_cause {
307 		uint16_t code;
308 		uint16_t length;
309 		/* optional cause-specific info may follow */
310 	}                __attribute__((packed));
311 
312 	struct sctp_error_invalid_stream {
313 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STRE
314 						 * AM */
315 		uint16_t stream_id;	/* stream id of the DATA in error */
316 		uint16_t reserved;
317 	}                         __attribute__((packed));
318 
319 	struct sctp_error_missing_param {
320 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARA
321 						 * M */
322 		uint32_t num_missing_params;	/* number of missing
323 						 * parameters */
324 		/* uint16_t param_type's follow */
325 	}                        __attribute__((packed));
326 
327 	struct sctp_error_stale_cookie {
328 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE
329 						 *  */
330 		uint32_t stale_time;	/* time in usec of staleness */
331 	}                       __attribute__((packed));
332 
333 	struct sctp_error_out_of_resource {
334 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOU
335 						 * RCES */
336 	}                          __attribute__((packed));
337 
338 	struct sctp_error_unresolv_addr {
339 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE
340 						 * _ADDR */
341 
342 	}                        __attribute__((packed));
343 
344 	struct sctp_error_unrecognized_chunk {
345 		struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRECOG_CHUN
346 						 * K */
347 		struct sctp_chunkhdr ch;	/* header from chunk in error */
348 	}                             __attribute__((packed));
349 
350 /*
351  * Main SCTP chunk types we place these here so natd and f/w's in user land
352  * can find them.
353  */
354 /************0x00 series ***********/
355 #define SCTP_DATA		0x00
356 #define SCTP_INITIATION		0x01
357 #define SCTP_INITIATION_ACK	0x02
358 #define SCTP_SELECTIVE_ACK	0x03
359 #define SCTP_HEARTBEAT_REQUEST	0x04
360 #define SCTP_HEARTBEAT_ACK	0x05
361 #define SCTP_ABORT_ASSOCIATION	0x06
362 #define SCTP_SHUTDOWN		0x07
363 #define SCTP_SHUTDOWN_ACK	0x08
364 #define SCTP_OPERATION_ERROR	0x09
365 #define SCTP_COOKIE_ECHO	0x0a
366 #define SCTP_COOKIE_ACK		0x0b
367 #define SCTP_ECN_ECHO		0x0c
368 #define SCTP_ECN_CWR		0x0d
369 #define SCTP_SHUTDOWN_COMPLETE	0x0e
370 /* RFC4895 */
371 #define SCTP_AUTHENTICATION     0x0f
372 /************0x40 series ***********/
373 /************0x80 series ***********/
374 /* RFC5061 */
375 #define	SCTP_ASCONF_ACK		0x80
376 /* draft-ietf-stewart-pktdrpsctp */
377 #define SCTP_PACKET_DROPPED	0x81
378 /* draft-ietf-stewart-strreset-xxx */
379 #define SCTP_STREAM_RESET       0x82
380 
381 /* RFC4820                         */
382 #define SCTP_PAD_CHUNK          0x84
383 /************0xc0 series ***********/
384 /* RFC3758 */
385 #define SCTP_FORWARD_CUM_TSN	0xc0
386 /* RFC5061 */
387 #define SCTP_ASCONF		0xc1
388 
389 
390 /* ABORT and SHUTDOWN COMPLETE FLAG */
391 #define SCTP_HAD_NO_TCB		0x01
392 
393 /* Packet dropped flags */
394 #define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
395 #define SCTP_BADCRC		0x02
396 #define SCTP_PACKET_TRUNCATED	0x04
397 
398 #define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
399 					 * time */
400 #define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
401 					 * in sat */
402 
403 /* Data Chuck Specific Flags */
404 #define SCTP_DATA_FRAG_MASK	0x03
405 #define SCTP_DATA_MIDDLE_FRAG	0x00
406 #define SCTP_DATA_LAST_FRAG	0x01
407 #define SCTP_DATA_FIRST_FRAG	0x02
408 #define SCTP_DATA_NOT_FRAG	0x03
409 #define SCTP_DATA_UNORDERED	0x04
410 
411 /* ECN Nonce: SACK Chunk Specific Flags */
412 #define SCTP_SACK_NONCE_SUM     0x01
413 
414 /* CMT DAC algorithm SACK flag */
415 #define SCTP_SACK_CMT_DAC       0x80
416 
417 /*
418  * PCB flags (in sctp_flags bitmask).
419  * Note the features and flags are meant
420  * for use by netstat.
421  */
422 #define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
423 #define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
424 #define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
425 #define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
426 #define SCTP_PCB_FLAGS_UNBOUND		0x00000010
427 #define SCTP_PCB_FLAGS_LISTENING	0x00000020
428 #define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
429 #define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
430 #define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
431 /* TCP model support */
432 
433 #define SCTP_PCB_FLAGS_CONNECTED	0x00200000
434 #define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
435 #define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
436 #define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
437 #define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
438 #define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
439 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4	0x08000000
440 #define SCTP_PCB_FLAGS_BLOCKING_IO	0x10000000
441 #define SCTP_PCB_FLAGS_SOCKET_GONE	0x20000000
442 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x40000000
443 /* flags to copy to new PCB */
444 #define SCTP_PCB_COPY_FLAGS		0x0e000004
445 
446 
447 /*
448  * PCB Features (in sctp_features bitmask)
449  */
450 #define SCTP_PCB_FLAGS_EXT_RCVINFO      0x00000002
451 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT  0x00000004
452 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE  0x00000008
453 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS	0x00000010
454 #define SCTP_PCB_FLAGS_DO_ASCONF	0x00000020
455 #define SCTP_PCB_FLAGS_AUTO_ASCONF	0x00000040
456 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE 0x00000080
457 
458 /* socket options */
459 #define SCTP_PCB_FLAGS_NODELAY		0x00000100
460 #define SCTP_PCB_FLAGS_AUTOCLOSE	0x00000200
461 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT	0x00000400
462 #define SCTP_PCB_FLAGS_RECVASSOCEVNT	0x00000800
463 #define SCTP_PCB_FLAGS_RECVPADDREVNT	0x00001000
464 #define SCTP_PCB_FLAGS_RECVPEERERR	0x00002000
465 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT	0x00004000
466 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT	0x00008000
467 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT	0x00010000
468 #define SCTP_PCB_FLAGS_PDAPIEVNT	0x00020000
469 #define SCTP_PCB_FLAGS_AUTHEVNT		0x00040000
470 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x00080000
471 #define SCTP_PCB_FLAGS_NO_FRAGMENT	0x00100000
472 #define SCTP_PCB_FLAGS_EXPLICIT_EOR     0x00400000
473 
474 /*-
475  * mobility_features parameters (by micchie).Note
476  * these features are applied against the
477  * sctp_mobility_features flags.. not the sctp_features
478  * flags.
479  */
480 #define SCTP_MOBILITY_BASE		0x00000001
481 #define SCTP_MOBILITY_FASTHANDOFF	0x00000002
482 #define SCTP_MOBILITY_PRIM_DELETED	0x00000004
483 
484 
485 #define SCTP_SMALLEST_PMTU 512	/* smallest pmtu allowed when disabling PMTU
486 				 * discovery */
487 
488 #include <netinet/sctp_uio.h>
489 
490 /* This dictates the size of the packet
491  * collection buffer. This only applies
492  * if SCTP_PACKET_LOGGING is enabled in
493  * your config.
494  */
495 #define SCTP_PACKET_LOG_SIZE 65536
496 
497 /* Maximum delays and such a user can set for options that
498  * take ms.
499  */
500 #define SCTP_MAX_SACK_DELAY 500	/* per RFC4960 */
501 #define SCTP_MAX_HB_INTERVAL 14400000	/* 4 hours in ms */
502 #define SCTP_MAX_COOKIE_LIFE  3600000	/* 1 hour in ms */
503 
504 
505 /* Types of logging/KTR tracing  that can be enabled via the
506  * sysctl net.inet.sctp.sctp_logging. You must also enable
507  * SUBSYS tracing.
508  * Note that you must have the SCTP option in the kernel
509  * to enable these as well.
510  */
511 #define SCTP_BLK_LOGGING_ENABLE				0x00000001
512 #define SCTP_CWND_MONITOR_ENABLE			0x00000002
513 #define SCTP_CWND_LOGGING_ENABLE			0x00000004
514 #define SCTP_EARLYFR_LOGGING_ENABLE			0x00000010
515 #define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
516 #define SCTP_FR_LOGGING_ENABLE				0x00000040
517 #define SCTP_LOCK_LOGGING_ENABLE			0x00000080
518 #define SCTP_MAP_LOGGING_ENABLE				0x00000100
519 #define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
520 #define SCTP_MBUF_LOGGING_ENABLE			0x00000400
521 #define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
522 #define SCTP_RECV_RWND_LOGGING_ENABLE		0x00001000
523 #define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
524 #define SCTP_SACK_LOGGING_ENABLE			0x00004000
525 #define SCTP_SACK_RWND_LOGGING_ENABLE		0x00008000
526 #define SCTP_SB_LOGGING_ENABLE				0x00010000
527 #define SCTP_STR_LOGGING_ENABLE				0x00020000
528 #define SCTP_WAKE_LOGGING_ENABLE			0x00040000
529 #define SCTP_LOG_MAXBURST_ENABLE			0x00080000
530 #define SCTP_LOG_RWND_ENABLE    			0x00100000
531 #define SCTP_LOG_SACK_ARRIVALS_ENABLE       0x00200000
532 #define SCTP_LTRACE_CHUNK_ENABLE            0x00400000
533 #define SCTP_LTRACE_ERROR_ENABLE            0x00800000
534 #define SCTP_LAST_PACKET_TRACING            0x01000000
535 #define SCTP_THRESHOLD_LOGGING              0x02000000
536 #define SCTP_LOG_AT_SEND_2_SCTP             0x04000000
537 #define SCTP_LOG_AT_SEND_2_OUTQ             0x08000000
538 
539 
540 
541 #endif				/* !_NETINET_SCTP_H_ */
542