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 */
48struct 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 */
59struct 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 */
69struct 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#define SCTP_ECN_SUPPORTED              0x00000025
125#define SCTP_PR_SUPPORTED               0x00000026
126#define SCTP_AUTH_SUPPORTED             0x00000027
127#define SCTP_ASCONF_SUPPORTED           0x00000028
128#define SCTP_RECONFIG_SUPPORTED         0x00000029
129#define SCTP_NRSACK_SUPPORTED           0x00000030
130#define SCTP_PKTDROP_SUPPORTED          0x00000031
131
132/*
133 * read-only options
134 */
135#define SCTP_STATUS			0x00000100
136#define SCTP_GET_PEER_ADDR_INFO		0x00000101
137/* authentication support */
138#define SCTP_PEER_AUTH_CHUNKS 		0x00000102
139#define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
140#define SCTP_GET_ASSOC_NUMBER           0x00000104	/* ro */
141#define SCTP_GET_ASSOC_ID_LIST          0x00000105	/* ro */
142#define SCTP_TIMEOUTS                   0x00000106
143#define SCTP_PR_STREAM_STATUS           0x00000107
144#define SCTP_PR_ASSOC_STATUS            0x00000108
145
146/*
147 * user socket options: BSD implementation specific
148 */
149/*
150 * Blocking I/O is enabled on any TCP type socket by default. For the UDP
151 * model if this is turned on then the socket buffer is shared for send
152 * resources amongst all associations.  The default for the UDP model is that
153 * is SS_NBIO is set.  Which means all associations have a separate send
154 * limit BUT they will NOT ever BLOCK instead you will get an error back
155 * EAGAIN if you try to send too much. If you want the blocking semantics you
156 * set this option at the cost of sharing one socket send buffer size amongst
157 * all associations. Peeled off sockets turn this option off and block. But
158 * since both TCP and peeled off sockets have only one assoc per socket this
159 * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
160 * model OR peeled off UDP model, but we do allow you to do so. You just use
161 * the normal syscall to toggle SS_NBIO the way you want.
162 *
163 * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
164 * field.
165 */
166
167#define SCTP_ENABLE_STREAM_RESET	0x00000900	/* struct
168							 * sctp_assoc_value */
169#define SCTP_RESET_STREAMS		0x00000901	/* struct
170							 * sctp_reset_streams */
171#define SCTP_RESET_ASSOC		0x00000902	/* sctp_assoc_t */
172#define SCTP_ADD_STREAMS		0x00000903	/* struct
173							 * sctp_add_streams */
174
175/* For enable stream reset */
176#define SCTP_ENABLE_RESET_STREAM_REQ 	0x00000001
177#define SCTP_ENABLE_RESET_ASSOC_REQ 	0x00000002
178#define SCTP_ENABLE_CHANGE_ASSOC_REQ 	0x00000004
179#define SCTP_ENABLE_VALUE_MASK		0x00000007
180/* For reset streams */
181#define SCTP_STREAM_RESET_INCOMING	0x00000001
182#define SCTP_STREAM_RESET_OUTGOING	0x00000002
183
184
185/* here on down are more implementation specific */
186#define SCTP_SET_DEBUG_LEVEL		0x00001005
187#define SCTP_CLR_STAT_LOG               0x00001007
188/* CMT ON/OFF socket option */
189#define SCTP_CMT_ON_OFF                 0x00001200
190#define SCTP_CMT_USE_DAC                0x00001201
191/* JRS - Pluggable Congestion Control Socket option */
192#define SCTP_PLUGGABLE_CC               0x00001202
193/* RS - Pluggable Stream Scheduling Socket option */
194#define SCTP_PLUGGABLE_SS		0x00001203
195#define SCTP_SS_VALUE			0x00001204
196#define SCTP_CC_OPTION			0x00001205	/* Options for CC
197							 * modules */
198/* read only */
199#define SCTP_GET_SNDBUF_USE		0x00001101
200#define SCTP_GET_STAT_LOG		0x00001103
201#define SCTP_PCB_STATUS			0x00001104
202#define SCTP_GET_NONCE_VALUES           0x00001105
203
204
205/* Special hook for dynamically setting primary for all assoc's,
206 * this is a write only option that requires root privilege.
207 */
208#define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
209
210/* VRF (virtual router feature) and multi-VRF support
211 * options. VRF's provide splits within a router
212 * that give the views of multiple routers. A
213 * standard host, without VRF support, is just
214 * a single VRF. If VRF's are supported then
215 * the transport must be VRF aware. This means
216 * that every socket call coming in must be directed
217 * within the endpoint to one of the VRF's it belongs
218 * to. The endpoint, before binding, may select
219 * the "default" VRF it is in by using a set socket
220 * option with SCTP_VRF_ID. This will also
221 * get propagated to the default VRF. Once the
222 * endpoint binds an address then it CANNOT add
223 * additional VRF's to become a Multi-VRF endpoint.
224 *
225 * Before BINDING additional VRF's can be added with
226 * the SCTP_ADD_VRF_ID call or deleted with
227 * SCTP_DEL_VRF_ID.
228 *
229 * Associations are ALWAYS contained inside a single
230 * VRF. They cannot reside in two (or more) VRF's. Incoming
231 * packets, assuming the router is VRF aware, can always
232 * tell us what VRF they arrived on. A host not supporting
233 * any VRF's will find that the packets always arrived on the
234 * single VRF that the host has.
235 *
236 */
237
238#define SCTP_VRF_ID			0x00003001
239#define SCTP_ADD_VRF_ID			0x00003002
240#define SCTP_GET_VRF_IDS		0x00003003
241#define SCTP_GET_ASOC_VRF               0x00003004
242#define SCTP_DEL_VRF_ID                 0x00003005
243
244/*
245 * If you enable packet logging you can get
246 * a poor mans ethereal output in binary
247 * form. Note this is a compile option to
248 * the kernel,  SCTP_PACKET_LOGGING, and
249 * without it in your kernel you
250 * will get a EOPNOTSUPP
251 */
252#define SCTP_GET_PACKET_LOG             0x00004001
253
254/*
255 * hidden implementation specific options these are NOT user visible (should
256 * move out of sctp.h)
257 */
258/* sctp_bindx() flags as hidden socket options */
259#define SCTP_BINDX_ADD_ADDR		0x00008001
260#define SCTP_BINDX_REM_ADDR		0x00008002
261/* Hidden socket option that gets the addresses */
262#define SCTP_GET_PEER_ADDRESSES		0x00008003
263#define SCTP_GET_LOCAL_ADDRESSES	0x00008004
264/* return the total count in bytes needed to hold all local addresses bound */
265#define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
266/* Return the total count in bytes needed to hold the remote address */
267#define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
268/* hidden option for connectx */
269#define SCTP_CONNECT_X			0x00008007
270/* hidden option for connectx_delayed, part of sendx */
271#define SCTP_CONNECT_X_DELAYED		0x00008008
272#define SCTP_CONNECT_X_COMPLETE         0x00008009
273/* hidden socket option based sctp_peeloff */
274#define SCTP_PEELOFF                    0x0000800a
275/* the real worker for sctp_getaddrlen() */
276#define SCTP_GET_ADDR_LEN               0x0000800b
277/* Debug things that need to be purged */
278#define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
279
280/* JRS - Supported congestion control modules for pluggable
281 * congestion control
282 */
283/* Standard TCP Congestion Control */
284#define SCTP_CC_RFC2581		0x00000000
285/* High Speed TCP Congestion Control (Floyd) */
286#define SCTP_CC_HSTCP		0x00000001
287/* HTCP Congestion Control */
288#define SCTP_CC_HTCP		0x00000002
289/* RTCC Congestion Control - RFC2581 plus */
290#define SCTP_CC_RTCC            0x00000003
291
292#define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
293#define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
294#define SCTP_CC_OPT_STEADY_STEP         0x00002002
295
296#define SCTP_CMT_OFF            0
297#define SCTP_CMT_BASE           1
298#define SCTP_CMT_RPV1           2
299#define SCTP_CMT_RPV2           3
300#define SCTP_CMT_MPTCP          4
301#define SCTP_CMT_MAX            SCTP_CMT_MPTCP
302
303/* RS - Supported stream scheduling modules for pluggable
304 * stream scheduling
305 */
306/* Default simple round-robin */
307#define SCTP_SS_DEFAULT			0x00000000
308/* Real round-robin */
309#define SCTP_SS_ROUND_ROBIN		0x00000001
310/* Real round-robin per packet */
311#define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
312/* Priority */
313#define SCTP_SS_PRIORITY		0x00000003
314/* Fair Bandwidth */
315#define SCTP_SS_FAIR_BANDWITH		0x00000004
316/* First-come, first-serve */
317#define SCTP_SS_FIRST_COME		0x00000005
318
319
320/* fragment interleave constants
321 * setting must be one of these or
322 * EINVAL returned.
323 */
324#define SCTP_FRAG_LEVEL_0    0x00000000
325#define SCTP_FRAG_LEVEL_1    0x00000001
326#define SCTP_FRAG_LEVEL_2    0x00000002
327
328/*
329 * user state values
330 */
331#define SCTP_CLOSED			0x0000
332#define SCTP_BOUND			0x1000
333#define SCTP_LISTEN			0x2000
334#define SCTP_COOKIE_WAIT		0x0002
335#define SCTP_COOKIE_ECHOED		0x0004
336#define SCTP_ESTABLISHED		0x0008
337#define SCTP_SHUTDOWN_SENT		0x0010
338#define SCTP_SHUTDOWN_RECEIVED		0x0020
339#define SCTP_SHUTDOWN_ACK_SENT		0x0040
340#define SCTP_SHUTDOWN_PENDING		0x0080
341
342/*
343 * SCTP operational error codes (user visible)
344 */
345#define SCTP_CAUSE_NO_ERROR		0x0000
346#define SCTP_CAUSE_INVALID_STREAM	0x0001
347#define SCTP_CAUSE_MISSING_PARAM	0x0002
348#define SCTP_CAUSE_STALE_COOKIE		0x0003
349#define SCTP_CAUSE_OUT_OF_RESC		0x0004
350#define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
351#define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
352#define SCTP_CAUSE_INVALID_PARAM	0x0007
353#define SCTP_CAUSE_UNRECOG_PARAM	0x0008
354#define SCTP_CAUSE_NO_USER_DATA		0x0009
355#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
356#define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
357#define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
358#define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
359
360/* Error causes from RFC5061 */
361#define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
362#define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
363#define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
364#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
365#define SCTP_CAUSE_REQUEST_REFUSED	0x00a4
366
367/* Error causes from nat-draft */
368#define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
369#define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
370
371/* Error causes from RFC4895 */
372#define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
373
374/*
375 * error cause parameters (user visible)
376 */
377struct sctp_gen_error_cause {
378	uint16_t code;
379	uint16_t length;
380	uint8_t info[];
381}                    SCTP_PACKED;
382
383struct sctp_error_cause {
384	uint16_t code;
385	uint16_t length;
386	/* optional cause-specific info may follow */
387}                SCTP_PACKED;
388
389struct sctp_error_invalid_stream {
390	struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STREAM */
391	uint16_t stream_id;	/* stream id of the DATA in error */
392	uint16_t reserved;
393}                         SCTP_PACKED;
394
395struct sctp_error_missing_param {
396	struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARAM */
397	uint32_t num_missing_params;	/* number of missing parameters */
398	/* uint16_t param_type's follow */
399}                        SCTP_PACKED;
400
401struct sctp_error_stale_cookie {
402	struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE */
403	uint32_t stale_time;	/* time in usec of staleness */
404}                       SCTP_PACKED;
405
406struct sctp_error_out_of_resource {
407	struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOURCES */
408}                          SCTP_PACKED;
409
410struct sctp_error_unresolv_addr {
411	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
412
413}                        SCTP_PACKED;
414
415struct sctp_error_unrecognized_chunk {
416	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRECOG_CHUNK */
417	struct sctp_chunkhdr ch;/* header from chunk in error */
418}                             SCTP_PACKED;
419
420struct sctp_error_no_user_data {
421	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_NO_USER_DATA */
422	uint32_t tsn;		/* TSN of the empty data chunk */
423}                       SCTP_PACKED;
424
425/*
426 * Main SCTP chunk types we place these here so natd and f/w's in user land
427 * can find them.
428 */
429/************0x00 series ***********/
430#define SCTP_DATA		0x00
431#define SCTP_INITIATION		0x01
432#define SCTP_INITIATION_ACK	0x02
433#define SCTP_SELECTIVE_ACK	0x03
434#define SCTP_HEARTBEAT_REQUEST	0x04
435#define SCTP_HEARTBEAT_ACK	0x05
436#define SCTP_ABORT_ASSOCIATION	0x06
437#define SCTP_SHUTDOWN		0x07
438#define SCTP_SHUTDOWN_ACK	0x08
439#define SCTP_OPERATION_ERROR	0x09
440#define SCTP_COOKIE_ECHO	0x0a
441#define SCTP_COOKIE_ACK		0x0b
442#define SCTP_ECN_ECHO		0x0c
443#define SCTP_ECN_CWR		0x0d
444#define SCTP_SHUTDOWN_COMPLETE	0x0e
445/* RFC4895 */
446#define SCTP_AUTHENTICATION     0x0f
447/* EY nr_sack chunk id*/
448#define SCTP_NR_SELECTIVE_ACK	0x10
449/************0x40 series ***********/
450/************0x80 series ***********/
451/* RFC5061 */
452#define	SCTP_ASCONF_ACK		0x80
453/* draft-ietf-stewart-pktdrpsctp */
454#define SCTP_PACKET_DROPPED	0x81
455/* draft-ietf-stewart-strreset-xxx */
456#define SCTP_STREAM_RESET       0x82
457
458/* RFC4820                         */
459#define SCTP_PAD_CHUNK          0x84
460/************0xc0 series ***********/
461/* RFC3758 */
462#define SCTP_FORWARD_CUM_TSN	0xc0
463/* RFC5061 */
464#define SCTP_ASCONF		0xc1
465
466
467/* ABORT and SHUTDOWN COMPLETE FLAG */
468#define SCTP_HAD_NO_TCB		0x01
469
470/* Packet dropped flags */
471#define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
472#define SCTP_BADCRC		0x02
473#define SCTP_PACKET_TRUNCATED	0x04
474
475/* Flag for ECN -CWR */
476#define SCTP_CWR_REDUCE_OVERRIDE 0x01
477#define SCTP_CWR_IN_SAME_WINDOW  0x02
478
479#define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
480					 * time */
481#define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
482					 * in sat */
483
484/* Data Chuck Specific Flags */
485#define SCTP_DATA_FRAG_MASK        0x03
486#define SCTP_DATA_MIDDLE_FRAG      0x00
487#define SCTP_DATA_LAST_FRAG        0x01
488#define SCTP_DATA_FIRST_FRAG       0x02
489#define SCTP_DATA_NOT_FRAG         0x03
490#define SCTP_DATA_UNORDERED        0x04
491#define SCTP_DATA_SACK_IMMEDIATELY 0x08
492/* ECN Nonce: SACK Chunk Specific Flags */
493#define SCTP_SACK_NONCE_SUM        0x01
494
495/* CMT DAC algorithm SACK flag */
496#define SCTP_SACK_CMT_DAC          0x80
497
498/*
499 * PCB flags (in sctp_flags bitmask).
500 * Note the features and flags are meant
501 * for use by netstat.
502 */
503#define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
504#define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
505#define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
506#define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
507#define SCTP_PCB_FLAGS_UNBOUND		0x00000010
508#define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
509#define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
510#define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
511/* TCP model support */
512
513#define SCTP_PCB_FLAGS_CONNECTED	0x00200000
514#define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
515#define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
516#define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
517#define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
518#define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
519#define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
520#define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
521#define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
522#define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
523
524/* flags to copy to new PCB */
525#define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
526					 SCTP_PCB_FLAGS_WAKEINPUT|\
527					 SCTP_PCB_FLAGS_BOUND_V6)
528
529/*
530 * PCB Features (in sctp_features bitmask)
531 */
532#define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
533#define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002	/* deprecated */
534#define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
535#define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
536#define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
537#define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
538#define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
539#define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
540/* socket options */
541#define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
542#define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
543#define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400	/* deprecated */
544#define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
545#define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
546#define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
547#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000	/* deprecated */
548#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
549#define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
550#define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
551#define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
552#define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
553#define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
554#define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
555#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
556#define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
557#define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
558#define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
559#define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
560#define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
561#define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
562#define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
563#define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
564
565/*-
566 * mobility_features parameters (by micchie).Note
567 * these features are applied against the
568 * sctp_mobility_features flags.. not the sctp_features
569 * flags.
570 */
571#define SCTP_MOBILITY_BASE               0x00000001
572#define SCTP_MOBILITY_FASTHANDOFF        0x00000002
573#define SCTP_MOBILITY_PRIM_DELETED       0x00000004
574
575
576#define SCTP_SMALLEST_PMTU 512	/* smallest pmtu allowed when disabling PMTU
577				 * discovery */
578
579#undef SCTP_PACKED
580
581#include <netinet/sctp_uio.h>
582
583/* This dictates the size of the packet
584 * collection buffer. This only applies
585 * if SCTP_PACKET_LOGGING is enabled in
586 * your config.
587 */
588#define SCTP_PACKET_LOG_SIZE 65536
589
590/* Maximum delays and such a user can set for options that
591 * take ms.
592 */
593#define SCTP_MAX_SACK_DELAY 500	/* per RFC4960 */
594#define SCTP_MAX_HB_INTERVAL 14400000	/* 4 hours in ms */
595#define SCTP_MAX_COOKIE_LIFE  3600000	/* 1 hour in ms */
596
597
598/* Types of logging/KTR tracing  that can be enabled via the
599 * sysctl net.inet.sctp.sctp_logging. You must also enable
600 * SUBSYS tracing.
601 * Note that you must have the SCTP option in the kernel
602 * to enable these as well.
603 */
604#define SCTP_BLK_LOGGING_ENABLE				0x00000001
605#define SCTP_CWND_MONITOR_ENABLE			0x00000002
606#define SCTP_CWND_LOGGING_ENABLE			0x00000004
607#define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
608#define SCTP_FR_LOGGING_ENABLE				0x00000040
609#define SCTP_LOCK_LOGGING_ENABLE			0x00000080
610#define SCTP_MAP_LOGGING_ENABLE				0x00000100
611#define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
612#define SCTP_MBUF_LOGGING_ENABLE			0x00000400
613#define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
614#define SCTP_RECV_RWND_LOGGING_ENABLE			0x00001000
615#define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
616#define SCTP_SACK_LOGGING_ENABLE			0x00004000
617#define SCTP_SACK_RWND_LOGGING_ENABLE			0x00008000
618#define SCTP_SB_LOGGING_ENABLE				0x00010000
619#define SCTP_STR_LOGGING_ENABLE				0x00020000
620#define SCTP_WAKE_LOGGING_ENABLE			0x00040000
621#define SCTP_LOG_MAXBURST_ENABLE			0x00080000
622#define SCTP_LOG_RWND_ENABLE    			0x00100000
623#define SCTP_LOG_SACK_ARRIVALS_ENABLE			0x00200000
624#define SCTP_LTRACE_CHUNK_ENABLE			0x00400000
625#define SCTP_LTRACE_ERROR_ENABLE			0x00800000
626#define SCTP_LAST_PACKET_TRACING			0x01000000
627#define SCTP_THRESHOLD_LOGGING				0x02000000
628#define SCTP_LOG_AT_SEND_2_SCTP				0x04000000
629#define SCTP_LOG_AT_SEND_2_OUTQ				0x08000000
630#define SCTP_LOG_TRY_ADVANCE				0x10000000
631
632#endif				/* !_NETINET_SCTP_H_ */
633