2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
14 * b) Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the distribution.
18 * c) Neither the name of Cisco Systems, Inc. nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #ifndef _NETINET_SCTP_SYSCTL_H_
39 #define _NETINET_SCTP_SYSCTL_H_
41 #include <netinet/sctp_os.h>
42 #include <netinet/sctp_constants.h>
45 uint32_t sctp_sendspace;
46 uint32_t sctp_recvspace;
47 uint32_t sctp_auto_asconf;
48 uint32_t sctp_multiple_asconfs;
49 uint32_t sctp_ecn_enable;
50 uint32_t sctp_pr_enable;
51 uint32_t sctp_auth_enable;
52 uint32_t sctp_asconf_enable;
53 uint32_t sctp_reconfig_enable;
54 uint32_t sctp_nrsack_enable;
55 uint32_t sctp_pktdrop_enable;
56 uint32_t sctp_fr_max_burst_default;
57 uint32_t sctp_peer_chunk_oh;
58 uint32_t sctp_max_burst_default;
59 uint32_t sctp_max_chunks_on_queue;
60 uint32_t sctp_hashtblsize;
61 uint32_t sctp_pcbtblsize;
62 uint32_t sctp_min_split_point;
63 uint32_t sctp_chunkscale;
64 uint32_t sctp_delayed_sack_time_default;
65 uint32_t sctp_sack_freq_default;
66 uint32_t sctp_system_free_resc_limit;
67 uint32_t sctp_asoc_free_resc_limit;
68 uint32_t sctp_heartbeat_interval_default;
69 uint32_t sctp_pmtu_raise_time_default;
70 uint32_t sctp_shutdown_guard_time_default;
71 uint32_t sctp_secret_lifetime_default;
72 uint32_t sctp_rto_max_default;
73 uint32_t sctp_rto_min_default;
74 uint32_t sctp_rto_initial_default;
75 uint32_t sctp_init_rto_max_default;
76 uint32_t sctp_valid_cookie_life_default;
77 uint32_t sctp_init_rtx_max_default;
78 uint32_t sctp_assoc_rtx_max_default;
79 uint32_t sctp_path_rtx_max_default;
80 uint32_t sctp_path_pf_threshold;
81 uint32_t sctp_add_more_threshold;
82 uint32_t sctp_nr_incoming_streams_default;
83 uint32_t sctp_nr_outgoing_streams_default;
84 uint32_t sctp_cmt_on_off;
85 uint32_t sctp_cmt_use_dac;
86 uint32_t sctp_use_cwnd_based_maxburst;
87 uint32_t sctp_nat_friendly;
88 uint32_t sctp_L2_abc_variable;
89 uint32_t sctp_mbuf_threshold_count;
90 uint32_t sctp_do_drain;
91 uint32_t sctp_hb_maxburst;
92 uint32_t sctp_abort_if_one_2_one_hits_limit;
93 uint32_t sctp_min_residual;
94 uint32_t sctp_max_retran_chunk;
95 uint32_t sctp_logging_level;
96 /* JRS - Variable for default congestion control module */
97 uint32_t sctp_default_cc_module;
98 /* RS - Variable for default stream scheduling module */
99 uint32_t sctp_default_ss_module;
100 uint32_t sctp_default_frag_interleave;
101 uint32_t sctp_mobility_base;
102 uint32_t sctp_mobility_fasthandoff;
103 uint32_t sctp_inits_include_nat_friendly;
104 uint32_t sctp_rttvar_bw;
105 uint32_t sctp_rttvar_rtt;
106 uint32_t sctp_rttvar_eqret;
107 uint32_t sctp_steady_step;
108 uint32_t sctp_use_dccc_ecn;
109 uint32_t sctp_diag_info_code;
110 #if defined(SCTP_LOCAL_TRACE_BUF)
111 struct sctp_log sctp_log;
113 uint32_t sctp_udp_tunneling_port;
114 uint32_t sctp_enable_sack_immediately;
115 uint32_t sctp_vtag_time_wait;
116 uint32_t sctp_buffer_splitting;
117 uint32_t sctp_initial_cwnd;
118 uint32_t sctp_blackhole;
119 #if defined(SCTP_DEBUG)
120 uint32_t sctp_debug_on;
122 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
123 uint32_t sctp_output_unlocked;
128 * limits for the sysctl variables
130 /* maxdgram: Maximum outgoing SCTP buffer size */
131 #define SCTPCTL_MAXDGRAM_DESC "Maximum outgoing SCTP buffer size"
132 #define SCTPCTL_MAXDGRAM_MIN 0
133 #define SCTPCTL_MAXDGRAM_MAX 0xFFFFFFFF
134 #define SCTPCTL_MAXDGRAM_DEFAULT 262144 /* 256k */
136 /* recvspace: Maximum incoming SCTP buffer size */
137 #define SCTPCTL_RECVSPACE_DESC "Maximum incoming SCTP buffer size"
138 #define SCTPCTL_RECVSPACE_MIN 0
139 #define SCTPCTL_RECVSPACE_MAX 0xFFFFFFFF
140 #define SCTPCTL_RECVSPACE_DEFAULT 262144 /* 256k */
142 /* autoasconf: Enable SCTP Auto-ASCONF */
143 #define SCTPCTL_AUTOASCONF_DESC "Enable SCTP Auto-ASCONF"
144 #define SCTPCTL_AUTOASCONF_MIN 0
145 #define SCTPCTL_AUTOASCONF_MAX 1
146 #define SCTPCTL_AUTOASCONF_DEFAULT 1
148 /* autoasconf: Enable SCTP Auto-ASCONF */
149 #define SCTPCTL_MULTIPLEASCONFS_DESC "Enable SCTP Muliple-ASCONFs"
150 #define SCTPCTL_MULTIPLEASCONFS_MIN 0
151 #define SCTPCTL_MULTIPLEASCONFS_MAX 1
152 #define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
154 /* ecn_enable: Enable SCTP ECN */
155 #define SCTPCTL_ECN_ENABLE_DESC "Enable SCTP ECN"
156 #define SCTPCTL_ECN_ENABLE_MIN 0
157 #define SCTPCTL_ECN_ENABLE_MAX 1
158 #define SCTPCTL_ECN_ENABLE_DEFAULT 1
160 /* pr_enable: Enable PR-SCTP */
161 #define SCTPCTL_PR_ENABLE_DESC "Enable PR-SCTP"
162 #define SCTPCTL_PR_ENABLE_MIN 0
163 #define SCTPCTL_PR_ENABLE_MAX 1
164 #define SCTPCTL_PR_ENABLE_DEFAULT 1
166 /* auth_enable: Enable SCTP AUTH function */
167 #define SCTPCTL_AUTH_ENABLE_DESC "Enable SCTP AUTH function"
168 #define SCTPCTL_AUTH_ENABLE_MIN 0
169 #define SCTPCTL_AUTH_ENABLE_MAX 1
170 #define SCTPCTL_AUTH_ENABLE_DEFAULT 1
172 /* asconf_enable: Enable SCTP ASCONF */
173 #define SCTPCTL_ASCONF_ENABLE_DESC "Enable SCTP ASCONF"
174 #define SCTPCTL_ASCONF_ENABLE_MIN 0
175 #define SCTPCTL_ASCONF_ENABLE_MAX 1
176 #define SCTPCTL_ASCONF_ENABLE_DEFAULT 1
178 /* reconfig_enable: Enable SCTP RE-CONFIG */
179 #define SCTPCTL_RECONFIG_ENABLE_DESC "Enable SCTP RE-CONFIG"
180 #define SCTPCTL_RECONFIG_ENABLE_MIN 0
181 #define SCTPCTL_RECONFIG_ENABLE_MAX 1
182 #define SCTPCTL_RECONFIG_ENABLE_DEFAULT 1
184 /* nrsack_enable: Enable NR_SACK */
185 #define SCTPCTL_NRSACK_ENABLE_DESC "Enable SCTP NR-SACK"
186 #define SCTPCTL_NRSACK_ENABLE_MIN 0
187 #define SCTPCTL_NRSACK_ENABLE_MAX 1
188 #define SCTPCTL_NRSACK_ENABLE_DEFAULT 0
190 /* pktdrop_enable: Enable SCTP Packet Drop Reports */
191 #define SCTPCTL_PKTDROP_ENABLE_DESC "Enable SCTP PKTDROP"
192 #define SCTPCTL_PKTDROP_ENABLE_MIN 0
193 #define SCTPCTL_PKTDROP_ENABLE_MAX 1
194 #define SCTPCTL_PKTDROP_ENABLE_DEFAULT 0
196 /* loopback_nocsum: Enable NO Csum on packets sent on loopback */
197 #define SCTPCTL_LOOPBACK_NOCSUM_DESC "Enable NO Csum on packets sent on loopback"
198 #define SCTPCTL_LOOPBACK_NOCSUM_MIN 0
199 #define SCTPCTL_LOOPBACK_NOCSUM_MAX 1
200 #define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
202 /* peer_chkoh: Amount to debit peers rwnd per chunk sent */
203 #define SCTPCTL_PEER_CHKOH_DESC "Amount to debit peers rwnd per chunk sent"
204 #define SCTPCTL_PEER_CHKOH_MIN 0
205 #define SCTPCTL_PEER_CHKOH_MAX 0xFFFFFFFF
206 #define SCTPCTL_PEER_CHKOH_DEFAULT 256
208 /* maxburst: Default max burst for sctp endpoints */
209 #define SCTPCTL_MAXBURST_DESC "Default max burst for sctp endpoints"
210 #define SCTPCTL_MAXBURST_MIN 0
211 #define SCTPCTL_MAXBURST_MAX 0xFFFFFFFF
212 #define SCTPCTL_MAXBURST_DEFAULT SCTP_DEF_MAX_BURST
214 /* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
215 #define SCTPCTL_FRMAXBURST_DESC "Default max burst for SCTP endpoints when fast retransmitting"
216 #define SCTPCTL_FRMAXBURST_MIN 0
217 #define SCTPCTL_FRMAXBURST_MAX 0xFFFFFFFF
218 #define SCTPCTL_FRMAXBURST_DEFAULT SCTP_DEF_FRMAX_BURST
221 /* maxchunks: Default max chunks on queue per asoc */
222 #define SCTPCTL_MAXCHUNKS_DESC "Default max chunks on queue per asoc"
223 #define SCTPCTL_MAXCHUNKS_MIN 0
224 #define SCTPCTL_MAXCHUNKS_MAX 0xFFFFFFFF
225 #define SCTPCTL_MAXCHUNKS_DEFAULT SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
227 /* tcbhashsize: Tunable for Hash table sizes */
228 #define SCTPCTL_TCBHASHSIZE_DESC "Tunable for TCB hash table sizes"
229 #define SCTPCTL_TCBHASHSIZE_MIN 1
230 #define SCTPCTL_TCBHASHSIZE_MAX 0xFFFFFFFF
231 #define SCTPCTL_TCBHASHSIZE_DEFAULT SCTP_TCBHASHSIZE
233 /* pcbhashsize: Tunable for PCB Hash table sizes */
234 #define SCTPCTL_PCBHASHSIZE_DESC "Tunable for PCB hash table sizes"
235 #define SCTPCTL_PCBHASHSIZE_MIN 1
236 #define SCTPCTL_PCBHASHSIZE_MAX 0xFFFFFFFF
237 #define SCTPCTL_PCBHASHSIZE_DEFAULT SCTP_PCBHASHSIZE
239 /* min_split_point: Minimum size when splitting a chunk */
240 #define SCTPCTL_MIN_SPLIT_POINT_DESC "Minimum size when splitting a chunk"
241 #define SCTPCTL_MIN_SPLIT_POINT_MIN 0
242 #define SCTPCTL_MIN_SPLIT_POINT_MAX 0xFFFFFFFF
243 #define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
245 /* chunkscale: Tunable for Scaling of number of chunks and messages */
246 #define SCTPCTL_CHUNKSCALE_DESC "Tunable for scaling of number of chunks and messages"
247 #define SCTPCTL_CHUNKSCALE_MIN 1
248 #define SCTPCTL_CHUNKSCALE_MAX 0xFFFFFFFF
249 #define SCTPCTL_CHUNKSCALE_DEFAULT SCTP_CHUNKQUEUE_SCALE
251 /* delayed_sack_time: Default delayed SACK timer in ms */
252 #define SCTPCTL_DELAYED_SACK_TIME_DESC "Default delayed SACK timer in ms"
253 #define SCTPCTL_DELAYED_SACK_TIME_MIN 0
254 #define SCTPCTL_DELAYED_SACK_TIME_MAX 0xFFFFFFFF
255 #define SCTPCTL_DELAYED_SACK_TIME_DEFAULT SCTP_RECV_MSEC
257 /* sack_freq: Default SACK frequency */
258 #define SCTPCTL_SACK_FREQ_DESC "Default SACK frequency"
259 #define SCTPCTL_SACK_FREQ_MIN 0
260 #define SCTPCTL_SACK_FREQ_MAX 0xFFFFFFFF
261 #define SCTPCTL_SACK_FREQ_DEFAULT SCTP_DEFAULT_SACK_FREQ
263 /* sys_resource: Max number of cached resources in the system */
264 #define SCTPCTL_SYS_RESOURCE_DESC "Max number of cached resources in the system"
265 #define SCTPCTL_SYS_RESOURCE_MIN 0
266 #define SCTPCTL_SYS_RESOURCE_MAX 0xFFFFFFFF
267 #define SCTPCTL_SYS_RESOURCE_DEFAULT SCTP_DEF_SYSTEM_RESC_LIMIT
269 /* asoc_resource: Max number of cached resources in an asoc */
270 #define SCTPCTL_ASOC_RESOURCE_DESC "Max number of cached resources in an asoc"
271 #define SCTPCTL_ASOC_RESOURCE_MIN 0
272 #define SCTPCTL_ASOC_RESOURCE_MAX 0xFFFFFFFF
273 #define SCTPCTL_ASOC_RESOURCE_DEFAULT SCTP_DEF_ASOC_RESC_LIMIT
275 /* heartbeat_interval: Default heartbeat interval in ms */
276 #define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
277 #define SCTPCTL_HEARTBEAT_INTERVAL_MIN 0
278 #define SCTPCTL_HEARTBEAT_INTERVAL_MAX 0xFFFFFFFF
279 #define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT SCTP_HB_DEFAULT_MSEC
281 /* pmtu_raise_time: Default PMTU raise timer in seconds */
282 #define SCTPCTL_PMTU_RAISE_TIME_DESC "Default PMTU raise timer in seconds"
283 #define SCTPCTL_PMTU_RAISE_TIME_MIN 0
284 #define SCTPCTL_PMTU_RAISE_TIME_MAX 0xFFFFFFFF
285 #define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
287 /* shutdown_guard_time: Default shutdown guard timer in seconds */
288 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
289 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN 0
290 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX 0xFFFFFFFF
291 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT 0
293 /* secret_lifetime: Default secret lifetime in seconds */
294 #define SCTPCTL_SECRET_LIFETIME_DESC "Default secret lifetime in seconds"
295 #define SCTPCTL_SECRET_LIFETIME_MIN 0
296 #define SCTPCTL_SECRET_LIFETIME_MAX 0xFFFFFFFF
297 #define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
299 /* rto_max: Default maximum retransmission timeout in ms */
300 #define SCTPCTL_RTO_MAX_DESC "Default maximum retransmission timeout in ms"
301 #define SCTPCTL_RTO_MAX_MIN 0
302 #define SCTPCTL_RTO_MAX_MAX 0xFFFFFFFF
303 #define SCTPCTL_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
305 /* rto_min: Default minimum retransmission timeout in ms */
306 #define SCTPCTL_RTO_MIN_DESC "Default minimum retransmission timeout in ms"
307 #define SCTPCTL_RTO_MIN_MIN 0
308 #define SCTPCTL_RTO_MIN_MAX 0xFFFFFFFF
309 #define SCTPCTL_RTO_MIN_DEFAULT SCTP_RTO_LOWER_BOUND
311 /* rto_initial: Default initial retransmission timeout in ms */
312 #define SCTPCTL_RTO_INITIAL_DESC "Default initial retransmission timeout in ms"
313 #define SCTPCTL_RTO_INITIAL_MIN 0
314 #define SCTPCTL_RTO_INITIAL_MAX 0xFFFFFFFF
315 #define SCTPCTL_RTO_INITIAL_DEFAULT SCTP_RTO_INITIAL
317 /* init_rto_max: Default maximum retransmission timeout during association setup in ms */
318 #define SCTPCTL_INIT_RTO_MAX_DESC "Default maximum retransmission timeout during association setup in ms"
319 #define SCTPCTL_INIT_RTO_MAX_MIN 0
320 #define SCTPCTL_INIT_RTO_MAX_MAX 0xFFFFFFFF
321 #define SCTPCTL_INIT_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
323 /* valid_cookie_life: Default cookie lifetime in sec */
324 #define SCTPCTL_VALID_COOKIE_LIFE_DESC "Default cookie lifetime in seconds"
325 #define SCTPCTL_VALID_COOKIE_LIFE_MIN 0
326 #define SCTPCTL_VALID_COOKIE_LIFE_MAX 0xFFFFFFFF
327 #define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT SCTP_DEFAULT_COOKIE_LIFE
329 /* init_rtx_max: Default maximum number of retransmission for INIT chunks */
330 #define SCTPCTL_INIT_RTX_MAX_DESC "Default maximum number of retransmissions for INIT chunks"
331 #define SCTPCTL_INIT_RTX_MAX_MIN 0
332 #define SCTPCTL_INIT_RTX_MAX_MAX 0xFFFFFFFF
333 #define SCTPCTL_INIT_RTX_MAX_DEFAULT SCTP_DEF_MAX_INIT
335 /* assoc_rtx_max: Default maximum number of retransmissions per association */
336 #define SCTPCTL_ASSOC_RTX_MAX_DESC "Default maximum number of retransmissions per association"
337 #define SCTPCTL_ASSOC_RTX_MAX_MIN 0
338 #define SCTPCTL_ASSOC_RTX_MAX_MAX 0xFFFFFFFF
339 #define SCTPCTL_ASSOC_RTX_MAX_DEFAULT SCTP_DEF_MAX_SEND
341 /* path_rtx_max: Default maximum of retransmissions per path */
342 #define SCTPCTL_PATH_RTX_MAX_DESC "Default maximum of retransmissions per path"
343 #define SCTPCTL_PATH_RTX_MAX_MIN 0
344 #define SCTPCTL_PATH_RTX_MAX_MAX 0xFFFFFFFF
345 #define SCTPCTL_PATH_RTX_MAX_DEFAULT SCTP_DEF_MAX_PATH_RTX
347 /* path_pf_threshold: threshold for considering the path potentially failed */
348 #define SCTPCTL_PATH_PF_THRESHOLD_DESC "Default potentially failed threshold"
349 #define SCTPCTL_PATH_PF_THRESHOLD_MIN 0
350 #define SCTPCTL_PATH_PF_THRESHOLD_MAX 0xFFFF
351 #define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT SCTPCTL_PATH_PF_THRESHOLD_MAX
353 /* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
354 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
355 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN 0
356 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX 0xFFFFFFFF
357 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
359 /* incoming_streams: Default number of incoming streams */
360 #define SCTPCTL_INCOMING_STREAMS_DESC "Default number of incoming streams"
361 #define SCTPCTL_INCOMING_STREAMS_MIN 1
362 #define SCTPCTL_INCOMING_STREAMS_MAX 65535
363 #define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
365 /* outgoing_streams: Default number of outgoing streams */
366 #define SCTPCTL_OUTGOING_STREAMS_DESC "Default number of outgoing streams"
367 #define SCTPCTL_OUTGOING_STREAMS_MIN 1
368 #define SCTPCTL_OUTGOING_STREAMS_MAX 65535
369 #define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
371 /* cmt_on_off: CMT on/off flag */
372 #define SCTPCTL_CMT_ON_OFF_DESC "CMT settings"
373 #define SCTPCTL_CMT_ON_OFF_MIN SCTP_CMT_OFF
374 #define SCTPCTL_CMT_ON_OFF_MAX SCTP_CMT_MAX
375 #define SCTPCTL_CMT_ON_OFF_DEFAULT SCTP_CMT_OFF
377 /* cmt_use_dac: CMT DAC on/off flag */
378 #define SCTPCTL_CMT_USE_DAC_DESC "CMT DAC on/off flag"
379 #define SCTPCTL_CMT_USE_DAC_MIN 0
380 #define SCTPCTL_CMT_USE_DAC_MAX 1
381 #define SCTPCTL_CMT_USE_DAC_DEFAULT 0
383 /* cwnd_maxburst: Use a CWND adjusting to implement maxburst */
384 #define SCTPCTL_CWND_MAXBURST_DESC "Adjust congestion control window to limit maximum burst when sending"
385 #define SCTPCTL_CWND_MAXBURST_MIN 0
386 #define SCTPCTL_CWND_MAXBURST_MAX 1
387 #define SCTPCTL_CWND_MAXBURST_DEFAULT 1
389 /* nat_friendly: SCTP NAT friendly operation */
390 #define SCTPCTL_NAT_FRIENDLY_DESC "SCTP NAT friendly operation"
391 #define SCTPCTL_NAT_FRIENDLY_MIN 0
392 #define SCTPCTL_NAT_FRIENDLY_MAX 1
393 #define SCTPCTL_NAT_FRIENDLY_DEFAULT 1
395 /* abc_l_var: SCTP ABC max increase per SACK (L) */
396 #define SCTPCTL_ABC_L_VAR_DESC "SCTP ABC max increase per SACK (L)"
397 #define SCTPCTL_ABC_L_VAR_MIN 0
398 #define SCTPCTL_ABC_L_VAR_MAX 0xFFFFFFFF
399 #define SCTPCTL_ABC_L_VAR_DEFAULT 2
401 /* max_chained_mbufs: Default max number of small mbufs on a chain */
402 #define SCTPCTL_MAX_CHAINED_MBUFS_DESC "Default max number of small mbufs on a chain"
403 #define SCTPCTL_MAX_CHAINED_MBUFS_MIN 0
404 #define SCTPCTL_MAX_CHAINED_MBUFS_MAX 0xFFFFFFFF
405 #define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT SCTP_DEFAULT_MBUFS_IN_CHAIN
407 /* do_sctp_drain: Should SCTP respond to the drain calls */
408 #define SCTPCTL_DO_SCTP_DRAIN_DESC "Should SCTP respond to the drain calls"
409 #define SCTPCTL_DO_SCTP_DRAIN_MIN 0
410 #define SCTPCTL_DO_SCTP_DRAIN_MAX 1
411 #define SCTPCTL_DO_SCTP_DRAIN_DEFAULT 1
413 /* hb_max_burst: Confirmation Heartbeat max burst? */
414 #define SCTPCTL_HB_MAX_BURST_DESC "Confirmation Heartbeat max burst"
415 #define SCTPCTL_HB_MAX_BURST_MIN 1
416 #define SCTPCTL_HB_MAX_BURST_MAX 0xFFFFFFFF
417 #define SCTPCTL_HB_MAX_BURST_DEFAULT SCTP_DEF_HBMAX_BURST
419 /* abort_at_limit: When one-2-one hits qlimit abort */
420 #define SCTPCTL_ABORT_AT_LIMIT_DESC "Abort when one-to-one hits qlimit"
421 #define SCTPCTL_ABORT_AT_LIMIT_MIN 0
422 #define SCTPCTL_ABORT_AT_LIMIT_MAX 1
423 #define SCTPCTL_ABORT_AT_LIMIT_DEFAULT 0
425 /* min_residual: min residual in a data fragment leftover */
426 #define SCTPCTL_MIN_RESIDUAL_DESC "Minimum residual data chunk in second part of split"
427 #define SCTPCTL_MIN_RESIDUAL_MIN 20
428 #define SCTPCTL_MIN_RESIDUAL_MAX 65535
429 #define SCTPCTL_MIN_RESIDUAL_DEFAULT 1452
431 /* max_retran_chunk: max chunk retransmissions */
432 #define SCTPCTL_MAX_RETRAN_CHUNK_DESC "Maximum times an unlucky chunk can be retransmitted before assoc abort"
433 #define SCTPCTL_MAX_RETRAN_CHUNK_MIN 0
434 #define SCTPCTL_MAX_RETRAN_CHUNK_MAX 65535
435 #define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT 30
437 /* sctp_logging: This gives us logging when the options are enabled */
438 #define SCTPCTL_LOGGING_LEVEL_DESC "Ltrace/KTR trace logging level"
439 #define SCTPCTL_LOGGING_LEVEL_MIN 0
440 #define SCTPCTL_LOGGING_LEVEL_MAX 0xffffffff
441 #define SCTPCTL_LOGGING_LEVEL_DEFAULT 0
443 /* JRS - default congestion control module sysctl */
444 #define SCTPCTL_DEFAULT_CC_MODULE_DESC "Default congestion control module"
445 #define SCTPCTL_DEFAULT_CC_MODULE_MIN 0
446 #define SCTPCTL_DEFAULT_CC_MODULE_MAX 2
447 #define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT 0
449 /* RS - default stream scheduling module sysctl */
450 #define SCTPCTL_DEFAULT_SS_MODULE_DESC "Default stream scheduling module"
451 #define SCTPCTL_DEFAULT_SS_MODULE_MIN 0
452 #define SCTPCTL_DEFAULT_SS_MODULE_MAX 5
453 #define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT 0
455 /* RRS - default fragment interleave */
456 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC "Default fragment interleave level"
457 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN 0
458 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX 2
459 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
461 /* mobility_base: Enable SCTP mobility support */
462 #define SCTPCTL_MOBILITY_BASE_DESC "Enable SCTP base mobility"
463 #define SCTPCTL_MOBILITY_BASE_MIN 0
464 #define SCTPCTL_MOBILITY_BASE_MAX 1
465 #define SCTPCTL_MOBILITY_BASE_DEFAULT 0
467 /* mobility_fasthandoff: Enable SCTP fast handoff support */
468 #define SCTPCTL_MOBILITY_FASTHANDOFF_DESC "Enable SCTP fast handoff"
469 #define SCTPCTL_MOBILITY_FASTHANDOFF_MIN 0
470 #define SCTPCTL_MOBILITY_FASTHANDOFF_MAX 1
471 #define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT 0
473 /* Enable SCTP/UDP tunneling port */
474 #define SCTPCTL_UDP_TUNNELING_PORT_DESC "Set the SCTP/UDP tunneling port"
475 #define SCTPCTL_UDP_TUNNELING_PORT_MIN 0
476 #define SCTPCTL_UDP_TUNNELING_PORT_MAX 65535
477 #define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT 0
479 /* Enable sending of the SACK-IMMEDIATELY bit */
480 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC "Enable sending of the SACK-IMMEDIATELY-bit"
481 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN 0
482 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX 1
483 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX
485 /* Enable sending of the NAT-FRIENDLY message */
486 #define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs"
487 #define SCTPCTL_NAT_FRIENDLY_INITS_MIN 0
488 #define SCTPCTL_NAT_FRIENDLY_INITS_MAX 1
489 #define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT SCTPCTL_NAT_FRIENDLY_INITS_MIN
491 /* Vtag time wait in seconds */
492 #define SCTPCTL_TIME_WAIT_DESC "Vtag time wait time in seconds, 0 disables it"
493 #define SCTPCTL_TIME_WAIT_MIN 0
494 #define SCTPCTL_TIME_WAIT_MAX 0xffffffff
495 #define SCTPCTL_TIME_WAIT_DEFAULT SCTP_TIME_WAIT
497 /* Enable Send/Receive buffer splitting */
498 #define SCTPCTL_BUFFER_SPLITTING_DESC "Enable send/receive buffer splitting"
499 #define SCTPCTL_BUFFER_SPLITTING_MIN 0
500 #define SCTPCTL_BUFFER_SPLITTING_MAX 0x3
501 #define SCTPCTL_BUFFER_SPLITTING_DEFAULT SCTPCTL_BUFFER_SPLITTING_MIN
503 /* Initial congestion window in MTUs */
504 #define SCTPCTL_INITIAL_CWND_DESC "Defines the initial congestion window size in MTUs"
505 #define SCTPCTL_INITIAL_CWND_MIN 0
506 #define SCTPCTL_INITIAL_CWND_MAX 0xffffffff
507 #define SCTPCTL_INITIAL_CWND_DEFAULT 3
509 /* rttvar smooth avg for bw calc */
510 #define SCTPCTL_RTTVAR_BW_DESC "Shift amount DCCC uses for bw smoothing on rtt calc"
511 #define SCTPCTL_RTTVAR_BW_MIN 0
512 #define SCTPCTL_RTTVAR_BW_MAX 32
513 #define SCTPCTL_RTTVAR_BW_DEFAULT 4
515 /* rttvar smooth avg for bw calc */
516 #define SCTPCTL_RTTVAR_RTT_DESC "Shift amount DCCC uses for rtt smoothing on rtt calc"
517 #define SCTPCTL_RTTVAR_RTT_MIN 0
518 #define SCTPCTL_RTTVAR_RTT_MAX 32
519 #define SCTPCTL_RTTVAR_RTT_DEFAULT 5
521 #define SCTPCTL_RTTVAR_EQRET_DESC "Whether DCCC increases cwnd when the rtt and bw are unchanged"
522 #define SCTPCTL_RTTVAR_EQRET_MIN 0
523 #define SCTPCTL_RTTVAR_EQRET_MAX 1
524 #define SCTPCTL_RTTVAR_EQRET_DEFAULT 0
526 #define SCTPCTL_RTTVAR_STEADYS_DESC "Number of identical bw measurements DCCC takes to try step down of cwnd"
527 #define SCTPCTL_RTTVAR_STEADYS_MIN 0
528 #define SCTPCTL_RTTVAR_STEADYS_MAX 0xFFFF
529 #define SCTPCTL_RTTVAR_STEADYS_DEFAULT 20 /* 0 means disable feature */
531 #define SCTPCTL_RTTVAR_DCCCECN_DESC "Enable ECN for DCCC."
532 #define SCTPCTL_RTTVAR_DCCCECN_MIN 0
533 #define SCTPCTL_RTTVAR_DCCCECN_MAX 1
534 #define SCTPCTL_RTTVAR_DCCCECN_DEFAULT 1 /* 0 means disable feature */
536 #define SCTPCTL_BLACKHOLE_DESC "Enable SCTP blackholing, see blackhole(4) for more details"
537 #define SCTPCTL_BLACKHOLE_MIN 0
538 #define SCTPCTL_BLACKHOLE_MAX 2
539 #define SCTPCTL_BLACKHOLE_DEFAULT SCTPCTL_BLACKHOLE_MIN
541 #define SCTPCTL_DIAG_INFO_CODE_DESC "Diagnostic information error cause code"
542 #define SCTPCTL_DIAG_INFO_CODE_MIN 0
543 #define SCTPCTL_DIAG_INFO_CODE_MAX 65535
544 #define SCTPCTL_DIAG_INFO_CODE_DEFAULT 0
546 #if defined(SCTP_DEBUG)
547 /* debug: Configure debug output */
548 #define SCTPCTL_DEBUG_DESC "Configure debug output"
549 #define SCTPCTL_DEBUG_MIN 0
550 #define SCTPCTL_DEBUG_MAX 0xFFFFFFFF
551 #define SCTPCTL_DEBUG_DEFAULT 0
555 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
556 #define SCTPCTL_OUTPUT_UNLOCKED_DESC "Unlock socket when sending packets down to IP"
557 #define SCTPCTL_OUTPUT_UNLOCKED_MIN 0
558 #define SCTPCTL_OUTPUT_UNLOCKED_MAX 1
559 #define SCTPCTL_OUTPUT_UNLOCKED_DEFAULT SCTPCTL_OUTPUT_UNLOCKED_MIN
563 #if defined(_KERNEL) || defined(__Userspace__)
564 #if defined(SYSCTL_DECL)
565 SYSCTL_DECL(_net_inet_sctp);
568 void sctp_init_sysctls(void);
571 #endif /* __sctp_sysctl_h__ */