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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 * SCTP protocol - RFC2960.
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... */
51 __attribute__((packed));
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));
64 * SCTP chunk parameters
66 struct sctp_paramhdr {
67 uint16_t param_type; /* parameter type */
68 uint16_t param_length; /* parameter length */
69 } __attribute__((packed));
72 * user socket options: socket API defined
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
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
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 */
125 * user socket options: BSD implementation specific
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.
141 * Blocking I/O is controled by the SS_NBIO flag on the socket state so_state
145 /* these should probably go into sockets API */
146 #define SCTP_RESET_STREAMS 0x00001004 /* wo */
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
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
165 /* Special hook for dynamically setting primary for all assoc's,
166 * this is a write only option that requires root privledge.
168 #define SCTP_SET_DYNAMIC_PRIMARY 0x00002001
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.
185 * Before BINDING additional VRF's can be added with
186 * the SCTP_ADD_VRF_ID call or deleted with
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.
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
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
212 #define SCTP_GET_PACKET_LOG 0x00004001
215 * hidden implementation specific options these are NOT user visible (should
216 * move out of sctp.h)
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
242 /* JRS - Supported congestion control modules for pluggable
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
253 /* fragment interleave constants
254 * setting must be one of these or
257 #define SCTP_FRAG_LEVEL_0 0x00000000
258 #define SCTP_FRAG_LEVEL_1 0x00000001
259 #define SCTP_FRAG_LEVEL_2 0x00000002
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
276 * SCTP operational error codes (user visible)
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
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
300 /* Error causes from RFC4895 */
301 #define SCTP_CAUSE_UNSUPPORTED_HMACID 0x0105
304 * error cause parameters (user visisble)
306 struct sctp_error_cause {
309 /* optional cause-specific info may follow */
310 } __attribute__((packed));
312 struct sctp_error_invalid_stream {
313 struct sctp_error_cause cause; /* code=SCTP_ERROR_INVALID_STRE
315 uint16_t stream_id; /* stream id of the DATA in error */
317 } __attribute__((packed));
319 struct sctp_error_missing_param {
320 struct sctp_error_cause cause; /* code=SCTP_ERROR_MISSING_PARA
322 uint32_t num_missing_params; /* number of missing
324 /* uint16_t param_type's follow */
325 } __attribute__((packed));
327 struct sctp_error_stale_cookie {
328 struct sctp_error_cause cause; /* code=SCTP_ERROR_STALE_COOKIE
330 uint32_t stale_time; /* time in usec of staleness */
331 } __attribute__((packed));
333 struct sctp_error_out_of_resource {
334 struct sctp_error_cause cause; /* code=SCTP_ERROR_OUT_OF_RESOU
336 } __attribute__((packed));
338 struct sctp_error_unresolv_addr {
339 struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRESOLVABLE
342 } __attribute__((packed));
344 struct sctp_error_unrecognized_chunk {
345 struct sctp_error_cause cause; /* code=SCTP_ERROR_UNRECOG_CHUN
347 struct sctp_chunkhdr ch; /* header from chunk in error */
348 } __attribute__((packed));
351 * Main SCTP chunk types we place these here so natd and f/w's in user land
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
371 #define SCTP_AUTHENTICATION 0x0f
372 /************0x40 series ***********/
373 /************0x80 series ***********/
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
382 #define SCTP_PAD_CHUNK 0x84
383 /************0xc0 series ***********/
385 #define SCTP_FORWARD_CUM_TSN 0xc0
387 #define SCTP_ASCONF 0xc1
390 /* ABORT and SHUTDOWN COMPLETE FLAG */
391 #define SCTP_HAD_NO_TCB 0x01
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
398 #define SCTP_SAT_NETWORK_MIN 400 /* min ms for RTT to set satellite
400 #define SCTP_SAT_NETWORK_BURST_INCR 2 /* how many times to multiply maxburst
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
411 /* ECN Nonce: SACK Chunk Specific Flags */
412 #define SCTP_SACK_NONCE_SUM 0x01
414 /* CMT DAC algorithm SACK flag */
415 #define SCTP_SACK_CMT_DAC 0x80
418 * PCB flags (in sctp_flags bitmask).
419 * Note the features and flags are meant
420 * for use by netstat.
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 */
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
448 * PCB Features (in sctp_features bitmask)
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
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
475 * mobility_features parameters (by micchie).Note
476 * these features are applied against the
477 * sctp_mobility_features flags.. not the sctp_features
480 #define SCTP_MOBILITY_BASE 0x00000001
481 #define SCTP_MOBILITY_FASTHANDOFF 0x00000002
482 #define SCTP_MOBILITY_PRIM_DELETED 0x00000004
485 #define SCTP_SMALLEST_PMTU 512 /* smallest pmtu allowed when disabling PMTU
488 #include <netinet/sctp_uio.h>
490 /* This dictates the size of the packet
491 * collection buffer. This only applies
492 * if SCTP_PACKET_LOGGING is enabled in
495 #define SCTP_PACKET_LOG_SIZE 65536
497 /* Maximum delays and such a user can set for options that
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 */
505 /* Types of logging/KTR tracing that can be enabled via the
506 * sysctl net.inet.sctp.sctp_logging. You must also enable
508 * Note that you must have the SCTP option in the kernel
509 * to enable these as well.
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
539 #endif /* !_NETINET_SCTP_H_ */