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30 /* $KAME: sctp.h,v 1.18 2005/03/06 16:04:16 itojun Exp $ */
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #ifndef _NETINET_SCTP_H_
36 #define _NETINET_SCTP_H_
38 #include <sys/types.h>
41 #define SCTP_PACKED __attribute__((packed))
44 * SCTP protocol - RFC2960.
47 uint16_t src_port; /* source port */
48 uint16_t dest_port; /* destination port */
49 uint32_t v_tag; /* verification tag of packet */
50 uint32_t checksum; /* Adler32 C-Sum */
51 /* chunks follow... */
57 struct sctp_chunkhdr {
58 uint8_t chunk_type; /* chunk type */
59 uint8_t chunk_flags; /* chunk flags */
60 uint16_t chunk_length; /* chunk length */
61 /* optional params follow */
65 * SCTP chunk parameters
67 struct sctp_paramhdr {
68 uint16_t param_type; /* parameter type */
69 uint16_t param_length; /* parameter length */
73 * user socket options: socket API defined
78 #define SCTP_RTOINFO 0x00000001
79 #define SCTP_ASSOCINFO 0x00000002
80 #define SCTP_INITMSG 0x00000003
81 #define SCTP_NODELAY 0x00000004
82 #define SCTP_AUTOCLOSE 0x00000005
83 #define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006
84 #define SCTP_PRIMARY_ADDR 0x00000007
85 #define SCTP_ADAPTATION_LAYER 0x00000008
87 #define SCTP_ADAPTION_LAYER 0x00000008
88 #define SCTP_DISABLE_FRAGMENTS 0x00000009
89 #define SCTP_PEER_ADDR_PARAMS 0x0000000a
90 #define SCTP_DEFAULT_SEND_PARAM 0x0000000b
91 /* ancillary data/notification interest options */
92 #define SCTP_EVENTS 0x0000000c
93 /* Without this applied we will give V4 and V6 addresses on a V6 socket */
94 #define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d
95 #define SCTP_MAXSEG 0x0000000e
96 #define SCTP_DELAYED_SACK 0x0000000f
97 #define SCTP_FRAGMENT_INTERLEAVE 0x00000010
98 #define SCTP_PARTIAL_DELIVERY_POINT 0x00000011
99 /* authentication support */
100 #define SCTP_AUTH_CHUNK 0x00000012
101 #define SCTP_AUTH_KEY 0x00000013
102 #define SCTP_HMAC_IDENT 0x00000014
103 #define SCTP_AUTH_ACTIVE_KEY 0x00000015
104 #define SCTP_AUTH_DELETE_KEY 0x00000016
105 #define SCTP_USE_EXT_RCVINFO 0x00000017
106 #define SCTP_AUTO_ASCONF 0x00000018 /* rw */
107 #define SCTP_MAXBURST 0x00000019 /* rw */
108 #define SCTP_MAX_BURST 0x00000019 /* rw */
109 /* assoc level context */
110 #define SCTP_CONTEXT 0x0000001a /* rw */
111 /* explict EOR signalling */
112 #define SCTP_EXPLICIT_EOR 0x0000001b
113 #define SCTP_REUSE_PORT 0x0000001c /* rw */
118 #define SCTP_STATUS 0x00000100
119 #define SCTP_GET_PEER_ADDR_INFO 0x00000101
120 /* authentication support */
121 #define SCTP_PEER_AUTH_CHUNKS 0x00000102
122 #define SCTP_LOCAL_AUTH_CHUNKS 0x00000103
123 #define SCTP_GET_ASSOC_NUMBER 0x00000104 /* ro */
124 #define SCTP_GET_ASSOC_ID_LIST 0x00000105 /* ro */
127 * user socket options: BSD implementation specific
130 * Blocking I/O is enabled on any TCP type socket by default. For the UDP
131 * model if this is turned on then the socket buffer is shared for send
132 * resources amongst all associations. The default for the UDP model is that
133 * is SS_NBIO is set. Which means all associations have a seperate send
134 * limit BUT they will NOT ever BLOCK instead you will get an error back
135 * EAGAIN if you try to send to much. If you want the blocking symantics you
136 * set this option at the cost of sharing one socket send buffer size amongst
137 * all associations. Peeled off sockets turn this option off and block. But
138 * since both TCP and peeled off sockets have only one assoc per socket this
139 * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
140 * model OR peeled off UDP model, but we do allow you to do so. You just use
141 * the normal syscall to toggle SS_NBIO the way you want.
143 * Blocking I/O is controled by the SS_NBIO flag on the socket state so_state
147 /* these should probably go into sockets API */
148 #define SCTP_RESET_STREAMS 0x00001004 /* wo */
151 /* here on down are more implementation specific */
152 #define SCTP_SET_DEBUG_LEVEL 0x00001005
153 #define SCTP_CLR_STAT_LOG 0x00001007
154 /* CMT ON/OFF socket option */
155 #define SCTP_CMT_ON_OFF 0x00001200
156 #define SCTP_CMT_USE_DAC 0x00001201
157 /* JRS - Pluggable Congestion Control Socket option */
158 #define SCTP_PLUGGABLE_CC 0x00001202
161 #define SCTP_GET_SNDBUF_USE 0x00001101
162 #define SCTP_GET_STAT_LOG 0x00001103
163 #define SCTP_PCB_STATUS 0x00001104
164 #define SCTP_GET_NONCE_VALUES 0x00001105
167 /* Special hook for dynamically setting primary for all assoc's,
168 * this is a write only option that requires root privledge.
170 #define SCTP_SET_DYNAMIC_PRIMARY 0x00002001
172 /* VRF (virtual router feature) and multi-VRF support
173 * options. VRF's provide splits within a router
174 * that give the views of multiple routers. A
175 * standard host, without VRF support, is just
176 * a single VRF. If VRF's are supported then
177 * the transport must be VRF aware. This means
178 * that every socket call coming in must be directed
179 * within the endpoint to one of the VRF's it belongs
180 * to. The endpoint, before binding, may select
181 * the "default" VRF it is in by using a set socket
182 * option with SCTP_VRF_ID. This will also
183 * get propegated to the default VRF. Once the
184 * endpoint binds an address then it CANNOT add
185 * additional VRF's to become a Multi-VRF endpoint.
187 * Before BINDING additional VRF's can be added with
188 * the SCTP_ADD_VRF_ID call or deleted with
191 * Associations are ALWAYS contained inside a single
192 * VRF. They cannot reside in two (or more) VRF's. Incoming
193 * packets, assuming the router is VRF aware, can always
194 * tell us what VRF they arrived on. A host not supporting
195 * any VRF's will find that the packets always arrived on the
196 * single VRF that the host has.
200 #define SCTP_VRF_ID 0x00003001
201 #define SCTP_ADD_VRF_ID 0x00003002
202 #define SCTP_GET_VRF_IDS 0x00003003
203 #define SCTP_GET_ASOC_VRF 0x00003004
204 #define SCTP_DEL_VRF_ID 0x00003005
207 * If you enable packet logging you can get
208 * a poor mans ethereal output in binary
209 * form. Note this is a compile option to
210 * the kernel, SCTP_PACKET_LOGGING, and
211 * without it in your kernel you
212 * will get a EOPNOTSUPP
214 #define SCTP_GET_PACKET_LOG 0x00004001
217 * hidden implementation specific options these are NOT user visible (should
218 * move out of sctp.h)
220 /* sctp_bindx() flags as hidden socket options */
221 #define SCTP_BINDX_ADD_ADDR 0x00008001
222 #define SCTP_BINDX_REM_ADDR 0x00008002
223 /* Hidden socket option that gets the addresses */
224 #define SCTP_GET_PEER_ADDRESSES 0x00008003
225 #define SCTP_GET_LOCAL_ADDRESSES 0x00008004
226 /* return the total count in bytes needed to hold all local addresses bound */
227 #define SCTP_GET_LOCAL_ADDR_SIZE 0x00008005
228 /* Return the total count in bytes needed to hold the remote address */
229 #define SCTP_GET_REMOTE_ADDR_SIZE 0x00008006
230 /* hidden option for connectx */
231 #define SCTP_CONNECT_X 0x00008007
232 /* hidden option for connectx_delayed, part of sendx */
233 #define SCTP_CONNECT_X_DELAYED 0x00008008
234 #define SCTP_CONNECT_X_COMPLETE 0x00008009
235 /* hidden socket option based sctp_peeloff */
236 #define SCTP_PEELOFF 0x0000800a
237 /* the real worker for sctp_getaddrlen() */
238 #define SCTP_GET_ADDR_LEN 0x0000800b
239 /* temporary workaround for Apple listen() issue, no args used */
240 #define SCTP_LISTEN_FIX 0x0000800c
241 /* Debug things that need to be purged */
242 #define SCTP_SET_INITIAL_DBG_SEQ 0x00009f00
244 /* JRS - Supported congestion control modules for pluggable
247 /* Standard TCP Congestion Control */
248 #define SCTP_CC_RFC2581 0x00000000
249 /* High Speed TCP Congestion Control (Floyd) */
250 #define SCTP_CC_HSTCP 0x00000001
251 /* HTCP Congestion Control */
252 #define SCTP_CC_HTCP 0x00000002
255 /* fragment interleave constants
256 * setting must be one of these or
259 #define SCTP_FRAG_LEVEL_0 0x00000000
260 #define SCTP_FRAG_LEVEL_1 0x00000001
261 #define SCTP_FRAG_LEVEL_2 0x00000002
266 #define SCTP_CLOSED 0x0000
267 #define SCTP_BOUND 0x1000
268 #define SCTP_LISTEN 0x2000
269 #define SCTP_COOKIE_WAIT 0x0002
270 #define SCTP_COOKIE_ECHOED 0x0004
271 #define SCTP_ESTABLISHED 0x0008
272 #define SCTP_SHUTDOWN_SENT 0x0010
273 #define SCTP_SHUTDOWN_RECEIVED 0x0020
274 #define SCTP_SHUTDOWN_ACK_SENT 0x0040
275 #define SCTP_SHUTDOWN_PENDING 0x0080
278 * SCTP operational error codes (user visible)
280 #define SCTP_CAUSE_NO_ERROR 0x0000
281 #define SCTP_CAUSE_INVALID_STREAM 0x0001
282 #define SCTP_CAUSE_MISSING_PARAM 0x0002
283 #define SCTP_CAUSE_STALE_COOKIE 0x0003
284 #define SCTP_CAUSE_OUT_OF_RESC 0x0004
285 #define SCTP_CAUSE_UNRESOLVABLE_ADDR 0x0005
286 #define SCTP_CAUSE_UNRECOG_CHUNK 0x0006
287 #define SCTP_CAUSE_INVALID_PARAM 0x0007
288 #define SCTP_CAUSE_UNRECOG_PARAM 0x0008
289 #define SCTP_CAUSE_NO_USER_DATA 0x0009
290 #define SCTP_CAUSE_COOKIE_IN_SHUTDOWN 0x000a
291 #define SCTP_CAUSE_RESTART_W_NEWADDR 0x000b
292 #define SCTP_CAUSE_USER_INITIATED_ABT 0x000c
293 #define SCTP_CAUSE_PROTOCOL_VIOLATION 0x000d
295 /* Error causes from RFC5061 */
296 #define SCTP_CAUSE_DELETING_LAST_ADDR 0xa0
297 #define SCTP_CAUSE_RESOURCE_SHORTAGE 0xa1
298 #define SCTP_CAUSE_DELETING_SRC_ADDR 0xa2
299 #define SCTP_CAUSE_ILLEGAL_ASCONF_ACK 0xa3
300 #define SCTP_CAUSE_REQUEST_REFUSED 0xa4
302 /* Error causes from RFC4895 */
303 #define SCTP_CAUSE_UNSUPPORTED_HMACID 0x0105
306 * error cause parameters (user visisble)
308 struct sctp_error_cause {
311 /* optional cause-specific info may follow */
314 struct sctp_error_invalid_stream {
315 struct sctp_error_cause cause; /* code=SCTP_ERROR_INVALID_STREAM */
316 uint16_t stream_id; /* stream id of the DATA in error */
320 struct sctp_error_missing_param {
321 struct sctp_error_cause cause; /* code=SCTP_ERROR_MISSING_PARAM */
322 uint32_t num_missing_params; /* number of missing parameters */
323 /* uint16_t param_type's follow */
326 struct sctp_error_stale_cookie {
327 struct sctp_error_cause cause; /* code=SCTP_ERROR_STALE_COOKIE */
328 uint32_t stale_time; /* time in usec of staleness */
331 struct sctp_error_out_of_resource {
332 struct sctp_error_cause cause; /* code=SCTP_ERROR_OUT_OF_RESOURCES */
335 struct sctp_error_unresolv_addr {
336 struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRESOLVABLE_ADDR */
340 struct sctp_error_unrecognized_chunk {
341 struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRECOG_CHUNK */
342 struct sctp_chunkhdr ch;/* header from chunk in error */
346 * Main SCTP chunk types we place these here so natd and f/w's in user land
349 /************0x00 series ***********/
350 #define SCTP_DATA 0x00
351 #define SCTP_INITIATION 0x01
352 #define SCTP_INITIATION_ACK 0x02
353 #define SCTP_SELECTIVE_ACK 0x03
354 #define SCTP_HEARTBEAT_REQUEST 0x04
355 #define SCTP_HEARTBEAT_ACK 0x05
356 #define SCTP_ABORT_ASSOCIATION 0x06
357 #define SCTP_SHUTDOWN 0x07
358 #define SCTP_SHUTDOWN_ACK 0x08
359 #define SCTP_OPERATION_ERROR 0x09
360 #define SCTP_COOKIE_ECHO 0x0a
361 #define SCTP_COOKIE_ACK 0x0b
362 #define SCTP_ECN_ECHO 0x0c
363 #define SCTP_ECN_CWR 0x0d
364 #define SCTP_SHUTDOWN_COMPLETE 0x0e
366 #define SCTP_AUTHENTICATION 0x0f
367 /************0x40 series ***********/
368 /************0x80 series ***********/
370 #define SCTP_ASCONF_ACK 0x80
371 /* draft-ietf-stewart-pktdrpsctp */
372 #define SCTP_PACKET_DROPPED 0x81
373 /* draft-ietf-stewart-strreset-xxx */
374 #define SCTP_STREAM_RESET 0x82
377 #define SCTP_PAD_CHUNK 0x84
378 /************0xc0 series ***********/
380 #define SCTP_FORWARD_CUM_TSN 0xc0
382 #define SCTP_ASCONF 0xc1
385 /* ABORT and SHUTDOWN COMPLETE FLAG */
386 #define SCTP_HAD_NO_TCB 0x01
388 /* Packet dropped flags */
389 #define SCTP_FROM_MIDDLE_BOX SCTP_HAD_NO_TCB
390 #define SCTP_BADCRC 0x02
391 #define SCTP_PACKET_TRUNCATED 0x04
393 #define SCTP_SAT_NETWORK_MIN 400 /* min ms for RTT to set satellite
395 #define SCTP_SAT_NETWORK_BURST_INCR 2 /* how many times to multiply maxburst
398 /* Data Chuck Specific Flags */
399 #define SCTP_DATA_FRAG_MASK 0x03
400 #define SCTP_DATA_MIDDLE_FRAG 0x00
401 #define SCTP_DATA_LAST_FRAG 0x01
402 #define SCTP_DATA_FIRST_FRAG 0x02
403 #define SCTP_DATA_NOT_FRAG 0x03
404 #define SCTP_DATA_UNORDERED 0x04
405 #define SCTP_DATA_SACK_IMMEDIATELY 0x08
406 /* ECN Nonce: SACK Chunk Specific Flags */
407 #define SCTP_SACK_NONCE_SUM 0x01
409 /* CMT DAC algorithm SACK flag */
410 #define SCTP_SACK_CMT_DAC 0x80
413 * PCB flags (in sctp_flags bitmask).
414 * Note the features and flags are meant
415 * for use by netstat.
417 #define SCTP_PCB_FLAGS_UDPTYPE 0x00000001
418 #define SCTP_PCB_FLAGS_TCPTYPE 0x00000002
419 #define SCTP_PCB_FLAGS_BOUNDALL 0x00000004
420 #define SCTP_PCB_FLAGS_ACCEPTING 0x00000008
421 #define SCTP_PCB_FLAGS_UNBOUND 0x00000010
422 #define SCTP_PCB_FLAGS_CLOSE_IP 0x00040000
423 #define SCTP_PCB_FLAGS_WAS_CONNECTED 0x00080000
424 #define SCTP_PCB_FLAGS_WAS_ABORTED 0x00100000
425 /* TCP model support */
427 #define SCTP_PCB_FLAGS_CONNECTED 0x00200000
428 #define SCTP_PCB_FLAGS_IN_TCPPOOL 0x00400000
429 #define SCTP_PCB_FLAGS_DONT_WAKE 0x00800000
430 #define SCTP_PCB_FLAGS_WAKEOUTPUT 0x01000000
431 #define SCTP_PCB_FLAGS_WAKEINPUT 0x02000000
432 #define SCTP_PCB_FLAGS_BOUND_V6 0x04000000
433 #define SCTP_PCB_FLAGS_BLOCKING_IO 0x08000000
434 #define SCTP_PCB_FLAGS_SOCKET_GONE 0x10000000
435 #define SCTP_PCB_FLAGS_SOCKET_ALLGONE 0x20000000
436 /* flags to copy to new PCB */
437 #define SCTP_PCB_COPY_FLAGS (SCTP_PCB_FLAGS_BOUNDALL|\
438 SCTP_PCB_FLAGS_WAKEINPUT|\
439 SCTP_PCB_FLAGS_BOUND_V6)
443 * PCB Features (in sctp_features bitmask)
445 #define SCTP_PCB_FLAGS_EXT_RCVINFO 0x00000002
446 #define SCTP_PCB_FLAGS_DONOT_HEARTBEAT 0x00000004
447 #define SCTP_PCB_FLAGS_FRAG_INTERLEAVE 0x00000008
448 #define SCTP_PCB_FLAGS_INTERLEAVE_STRMS 0x00000010
449 #define SCTP_PCB_FLAGS_DO_ASCONF 0x00000020
450 #define SCTP_PCB_FLAGS_AUTO_ASCONF 0x00000040
451 #define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE 0x00000080
453 #define SCTP_PCB_FLAGS_NODELAY 0x00000100
454 #define SCTP_PCB_FLAGS_AUTOCLOSE 0x00000200
455 #define SCTP_PCB_FLAGS_RECVDATAIOEVNT 0x00000400
456 #define SCTP_PCB_FLAGS_RECVASSOCEVNT 0x00000800
457 #define SCTP_PCB_FLAGS_RECVPADDREVNT 0x00001000
458 #define SCTP_PCB_FLAGS_RECVPEERERR 0x00002000
459 #define SCTP_PCB_FLAGS_RECVSENDFAILEVNT 0x00004000
460 #define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT 0x00008000
461 #define SCTP_PCB_FLAGS_ADAPTATIONEVNT 0x00010000
462 #define SCTP_PCB_FLAGS_PDAPIEVNT 0x00020000
463 #define SCTP_PCB_FLAGS_AUTHEVNT 0x00040000
464 #define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x00080000
465 #define SCTP_PCB_FLAGS_NO_FRAGMENT 0x00100000
466 #define SCTP_PCB_FLAGS_EXPLICIT_EOR 0x00400000
467 #define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4 0x00800000
468 #define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS 0x01000000
469 #define SCTP_PCB_FLAGS_PORTREUSE 0x02000000
471 * mobility_features parameters (by micchie).Note
472 * these features are applied against the
473 * sctp_mobility_features flags.. not the sctp_features
476 #define SCTP_MOBILITY_BASE 0x00000001
477 #define SCTP_MOBILITY_FASTHANDOFF 0x00000002
478 #define SCTP_MOBILITY_PRIM_DELETED 0x00000004
481 #define SCTP_SMALLEST_PMTU 512 /* smallest pmtu allowed when disabling PMTU
484 #include <netinet/sctp_uio.h>
486 /* This dictates the size of the packet
487 * collection buffer. This only applies
488 * if SCTP_PACKET_LOGGING is enabled in
491 #define SCTP_PACKET_LOG_SIZE 65536
493 /* Maximum delays and such a user can set for options that
496 #define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
497 #define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */
498 #define SCTP_MAX_COOKIE_LIFE 3600000 /* 1 hour in ms */
501 /* Types of logging/KTR tracing that can be enabled via the
502 * sysctl net.inet.sctp.sctp_logging. You must also enable
504 * Note that you must have the SCTP option in the kernel
505 * to enable these as well.
507 #define SCTP_BLK_LOGGING_ENABLE 0x00000001
508 #define SCTP_CWND_MONITOR_ENABLE 0x00000002
509 #define SCTP_CWND_LOGGING_ENABLE 0x00000004
510 #define SCTP_EARLYFR_LOGGING_ENABLE 0x00000010
511 #define SCTP_FLIGHT_LOGGING_ENABLE 0x00000020
512 #define SCTP_FR_LOGGING_ENABLE 0x00000040
513 #define SCTP_LOCK_LOGGING_ENABLE 0x00000080
514 #define SCTP_MAP_LOGGING_ENABLE 0x00000100
515 #define SCTP_MBCNT_LOGGING_ENABLE 0x00000200
516 #define SCTP_MBUF_LOGGING_ENABLE 0x00000400
517 #define SCTP_NAGLE_LOGGING_ENABLE 0x00000800
518 #define SCTP_RECV_RWND_LOGGING_ENABLE 0x00001000
519 #define SCTP_RTTVAR_LOGGING_ENABLE 0x00002000
520 #define SCTP_SACK_LOGGING_ENABLE 0x00004000
521 #define SCTP_SACK_RWND_LOGGING_ENABLE 0x00008000
522 #define SCTP_SB_LOGGING_ENABLE 0x00010000
523 #define SCTP_STR_LOGGING_ENABLE 0x00020000
524 #define SCTP_WAKE_LOGGING_ENABLE 0x00040000
525 #define SCTP_LOG_MAXBURST_ENABLE 0x00080000
526 #define SCTP_LOG_RWND_ENABLE 0x00100000
527 #define SCTP_LOG_SACK_ARRIVALS_ENABLE 0x00200000
528 #define SCTP_LTRACE_CHUNK_ENABLE 0x00400000
529 #define SCTP_LTRACE_ERROR_ENABLE 0x00800000
530 #define SCTP_LAST_PACKET_TRACING 0x01000000
531 #define SCTP_THRESHOLD_LOGGING 0x02000000
532 #define SCTP_LOG_AT_SEND_2_SCTP 0x04000000
533 #define SCTP_LOG_AT_SEND_2_OUTQ 0x08000000
539 #endif /* !_NETINET_SCTP_H_ */