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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28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 uint32_t sctp_sendall_limit;
120 #if defined(SCTP_DEBUG)
121 uint32_t sctp_debug_on;
126 * limits for the sysctl variables
128 /* maxdgram: Maximum outgoing SCTP buffer size */
129 #define SCTPCTL_MAXDGRAM_DESC "Maximum outgoing SCTP buffer size"
130 #define SCTPCTL_MAXDGRAM_MIN 0
131 #define SCTPCTL_MAXDGRAM_MAX 0xFFFFFFFF
132 #define SCTPCTL_MAXDGRAM_DEFAULT 262144 /* 256k */
134 /* recvspace: Maximum incoming SCTP buffer size */
135 #define SCTPCTL_RECVSPACE_DESC "Maximum incoming SCTP buffer size"
136 #define SCTPCTL_RECVSPACE_MIN 0
137 #define SCTPCTL_RECVSPACE_MAX 0xFFFFFFFF
138 #define SCTPCTL_RECVSPACE_DEFAULT 262144 /* 256k */
140 /* autoasconf: Enable SCTP Auto-ASCONF */
141 #define SCTPCTL_AUTOASCONF_DESC "Enable SCTP Auto-ASCONF"
142 #define SCTPCTL_AUTOASCONF_MIN 0
143 #define SCTPCTL_AUTOASCONF_MAX 1
144 #define SCTPCTL_AUTOASCONF_DEFAULT 1
146 /* autoasconf: Enable SCTP Auto-ASCONF */
147 #define SCTPCTL_MULTIPLEASCONFS_DESC "Enable SCTP Muliple-ASCONFs"
148 #define SCTPCTL_MULTIPLEASCONFS_MIN 0
149 #define SCTPCTL_MULTIPLEASCONFS_MAX 1
150 #define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
152 /* ecn_enable: Enable SCTP ECN */
153 #define SCTPCTL_ECN_ENABLE_DESC "Enable SCTP ECN"
154 #define SCTPCTL_ECN_ENABLE_MIN 0
155 #define SCTPCTL_ECN_ENABLE_MAX 1
156 #define SCTPCTL_ECN_ENABLE_DEFAULT 1
158 /* pr_enable: Enable PR-SCTP */
159 #define SCTPCTL_PR_ENABLE_DESC "Enable PR-SCTP"
160 #define SCTPCTL_PR_ENABLE_MIN 0
161 #define SCTPCTL_PR_ENABLE_MAX 1
162 #define SCTPCTL_PR_ENABLE_DEFAULT 1
164 /* auth_enable: Enable SCTP AUTH function */
165 #define SCTPCTL_AUTH_ENABLE_DESC "Enable SCTP AUTH function"
166 #define SCTPCTL_AUTH_ENABLE_MIN 0
167 #define SCTPCTL_AUTH_ENABLE_MAX 1
168 #define SCTPCTL_AUTH_ENABLE_DEFAULT 1
170 /* asconf_enable: Enable SCTP ASCONF */
171 #define SCTPCTL_ASCONF_ENABLE_DESC "Enable SCTP ASCONF"
172 #define SCTPCTL_ASCONF_ENABLE_MIN 0
173 #define SCTPCTL_ASCONF_ENABLE_MAX 1
174 #define SCTPCTL_ASCONF_ENABLE_DEFAULT 1
176 /* reconfig_enable: Enable SCTP RE-CONFIG */
177 #define SCTPCTL_RECONFIG_ENABLE_DESC "Enable SCTP RE-CONFIG"
178 #define SCTPCTL_RECONFIG_ENABLE_MIN 0
179 #define SCTPCTL_RECONFIG_ENABLE_MAX 1
180 #define SCTPCTL_RECONFIG_ENABLE_DEFAULT 1
182 /* nrsack_enable: Enable NR_SACK */
183 #define SCTPCTL_NRSACK_ENABLE_DESC "Enable SCTP NR-SACK"
184 #define SCTPCTL_NRSACK_ENABLE_MIN 0
185 #define SCTPCTL_NRSACK_ENABLE_MAX 1
186 #define SCTPCTL_NRSACK_ENABLE_DEFAULT 0
188 /* pktdrop_enable: Enable SCTP Packet Drop Reports */
189 #define SCTPCTL_PKTDROP_ENABLE_DESC "Enable SCTP PKTDROP"
190 #define SCTPCTL_PKTDROP_ENABLE_MIN 0
191 #define SCTPCTL_PKTDROP_ENABLE_MAX 1
192 #define SCTPCTL_PKTDROP_ENABLE_DEFAULT 0
194 /* loopback_nocsum: Enable NO Csum on packets sent on loopback */
195 #define SCTPCTL_LOOPBACK_NOCSUM_DESC "Enable NO Csum on packets sent on loopback"
196 #define SCTPCTL_LOOPBACK_NOCSUM_MIN 0
197 #define SCTPCTL_LOOPBACK_NOCSUM_MAX 1
198 #define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
200 /* peer_chkoh: Amount to debit peers rwnd per chunk sent */
201 #define SCTPCTL_PEER_CHKOH_DESC "Amount to debit peers rwnd per chunk sent"
202 #define SCTPCTL_PEER_CHKOH_MIN 0
203 #define SCTPCTL_PEER_CHKOH_MAX 0xFFFFFFFF
204 #define SCTPCTL_PEER_CHKOH_DEFAULT 256
206 /* maxburst: Default max burst for sctp endpoints */
207 #define SCTPCTL_MAXBURST_DESC "Default max burst for sctp endpoints"
208 #define SCTPCTL_MAXBURST_MIN 0
209 #define SCTPCTL_MAXBURST_MAX 0xFFFFFFFF
210 #define SCTPCTL_MAXBURST_DEFAULT SCTP_DEF_MAX_BURST
212 /* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
213 #define SCTPCTL_FRMAXBURST_DESC "Default max burst for SCTP endpoints when fast retransmitting"
214 #define SCTPCTL_FRMAXBURST_MIN 0
215 #define SCTPCTL_FRMAXBURST_MAX 0xFFFFFFFF
216 #define SCTPCTL_FRMAXBURST_DEFAULT SCTP_DEF_FRMAX_BURST
218 /* maxchunks: Default max chunks on queue per asoc */
219 #define SCTPCTL_MAXCHUNKS_DESC "Default max chunks on queue per asoc"
220 #define SCTPCTL_MAXCHUNKS_MIN 0
221 #define SCTPCTL_MAXCHUNKS_MAX 0xFFFFFFFF
222 #define SCTPCTL_MAXCHUNKS_DEFAULT SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
224 /* tcbhashsize: Tunable for Hash table sizes */
225 #define SCTPCTL_TCBHASHSIZE_DESC "Tunable for TCB hash table sizes"
226 #define SCTPCTL_TCBHASHSIZE_MIN 1
227 #define SCTPCTL_TCBHASHSIZE_MAX 0xFFFFFFFF
228 #define SCTPCTL_TCBHASHSIZE_DEFAULT SCTP_TCBHASHSIZE
230 /* pcbhashsize: Tunable for PCB Hash table sizes */
231 #define SCTPCTL_PCBHASHSIZE_DESC "Tunable for PCB hash table sizes"
232 #define SCTPCTL_PCBHASHSIZE_MIN 1
233 #define SCTPCTL_PCBHASHSIZE_MAX 0xFFFFFFFF
234 #define SCTPCTL_PCBHASHSIZE_DEFAULT SCTP_PCBHASHSIZE
236 /* min_split_point: Minimum size when splitting a chunk */
237 #define SCTPCTL_MIN_SPLIT_POINT_DESC "Minimum size when splitting a chunk"
238 #define SCTPCTL_MIN_SPLIT_POINT_MIN 0
239 #define SCTPCTL_MIN_SPLIT_POINT_MAX 0xFFFFFFFF
240 #define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
242 /* chunkscale: Tunable for Scaling of number of chunks and messages */
243 #define SCTPCTL_CHUNKSCALE_DESC "Tunable for scaling of number of chunks and messages"
244 #define SCTPCTL_CHUNKSCALE_MIN 1
245 #define SCTPCTL_CHUNKSCALE_MAX 0xFFFFFFFF
246 #define SCTPCTL_CHUNKSCALE_DEFAULT SCTP_CHUNKQUEUE_SCALE
248 /* delayed_sack_time: Default delayed SACK timer in ms */
249 #define SCTPCTL_DELAYED_SACK_TIME_DESC "Default delayed SACK timer in ms"
250 #define SCTPCTL_DELAYED_SACK_TIME_MIN 0
251 #define SCTPCTL_DELAYED_SACK_TIME_MAX 0xFFFFFFFF
252 #define SCTPCTL_DELAYED_SACK_TIME_DEFAULT SCTP_RECV_MSEC
254 /* sack_freq: Default SACK frequency */
255 #define SCTPCTL_SACK_FREQ_DESC "Default SACK frequency"
256 #define SCTPCTL_SACK_FREQ_MIN 0
257 #define SCTPCTL_SACK_FREQ_MAX 0xFFFFFFFF
258 #define SCTPCTL_SACK_FREQ_DEFAULT SCTP_DEFAULT_SACK_FREQ
260 /* sys_resource: Max number of cached resources in the system */
261 #define SCTPCTL_SYS_RESOURCE_DESC "Max number of cached resources in the system"
262 #define SCTPCTL_SYS_RESOURCE_MIN 0
263 #define SCTPCTL_SYS_RESOURCE_MAX 0xFFFFFFFF
264 #define SCTPCTL_SYS_RESOURCE_DEFAULT SCTP_DEF_SYSTEM_RESC_LIMIT
266 /* asoc_resource: Max number of cached resources in an asoc */
267 #define SCTPCTL_ASOC_RESOURCE_DESC "Max number of cached resources in an asoc"
268 #define SCTPCTL_ASOC_RESOURCE_MIN 0
269 #define SCTPCTL_ASOC_RESOURCE_MAX 0xFFFFFFFF
270 #define SCTPCTL_ASOC_RESOURCE_DEFAULT SCTP_DEF_ASOC_RESC_LIMIT
272 /* heartbeat_interval: Default heartbeat interval in ms */
273 #define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
274 #define SCTPCTL_HEARTBEAT_INTERVAL_MIN 0
275 #define SCTPCTL_HEARTBEAT_INTERVAL_MAX 0xFFFFFFFF
276 #define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT SCTP_HB_DEFAULT_MSEC
278 /* pmtu_raise_time: Default PMTU raise timer in seconds */
279 #define SCTPCTL_PMTU_RAISE_TIME_DESC "Default PMTU raise timer in seconds"
280 #define SCTPCTL_PMTU_RAISE_TIME_MIN 0
281 #define SCTPCTL_PMTU_RAISE_TIME_MAX 0xFFFFFFFF
282 #define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
284 /* shutdown_guard_time: Default shutdown guard timer in seconds */
285 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
286 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN 0
287 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX 0xFFFFFFFF
288 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT 0
290 /* secret_lifetime: Default secret lifetime in seconds */
291 #define SCTPCTL_SECRET_LIFETIME_DESC "Default secret lifetime in seconds"
292 #define SCTPCTL_SECRET_LIFETIME_MIN 0
293 #define SCTPCTL_SECRET_LIFETIME_MAX 0xFFFFFFFF
294 #define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
296 /* rto_max: Default maximum retransmission timeout in ms */
297 #define SCTPCTL_RTO_MAX_DESC "Default maximum retransmission timeout in ms"
298 #define SCTPCTL_RTO_MAX_MIN 0
299 #define SCTPCTL_RTO_MAX_MAX 0xFFFFFFFF
300 #define SCTPCTL_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
302 /* rto_min: Default minimum retransmission timeout in ms */
303 #define SCTPCTL_RTO_MIN_DESC "Default minimum retransmission timeout in ms"
304 #define SCTPCTL_RTO_MIN_MIN 0
305 #define SCTPCTL_RTO_MIN_MAX 0xFFFFFFFF
306 #define SCTPCTL_RTO_MIN_DEFAULT SCTP_RTO_LOWER_BOUND
308 /* rto_initial: Default initial retransmission timeout in ms */
309 #define SCTPCTL_RTO_INITIAL_DESC "Default initial retransmission timeout in ms"
310 #define SCTPCTL_RTO_INITIAL_MIN 0
311 #define SCTPCTL_RTO_INITIAL_MAX 0xFFFFFFFF
312 #define SCTPCTL_RTO_INITIAL_DEFAULT SCTP_RTO_INITIAL
314 /* init_rto_max: Default maximum retransmission timeout during association setup in ms */
315 #define SCTPCTL_INIT_RTO_MAX_DESC "Default maximum retransmission timeout during association setup in ms"
316 #define SCTPCTL_INIT_RTO_MAX_MIN 0
317 #define SCTPCTL_INIT_RTO_MAX_MAX 0xFFFFFFFF
318 #define SCTPCTL_INIT_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
320 /* valid_cookie_life: Default cookie lifetime in ms */
321 #define SCTPCTL_VALID_COOKIE_LIFE_DESC "Default cookie lifetime in ms"
322 #define SCTPCTL_VALID_COOKIE_LIFE_MIN SCTP_MIN_COOKIE_LIFE
323 #define SCTPCTL_VALID_COOKIE_LIFE_MAX SCTP_MAX_COOKIE_LIFE
324 #define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT SCTP_DEFAULT_COOKIE_LIFE
326 /* init_rtx_max: Default maximum number of retransmission for INIT chunks */
327 #define SCTPCTL_INIT_RTX_MAX_DESC "Default maximum number of retransmissions for INIT chunks"
328 #define SCTPCTL_INIT_RTX_MAX_MIN 0
329 #define SCTPCTL_INIT_RTX_MAX_MAX 0xFFFFFFFF
330 #define SCTPCTL_INIT_RTX_MAX_DEFAULT SCTP_DEF_MAX_INIT
332 /* assoc_rtx_max: Default maximum number of retransmissions per association */
333 #define SCTPCTL_ASSOC_RTX_MAX_DESC "Default maximum number of retransmissions per association"
334 #define SCTPCTL_ASSOC_RTX_MAX_MIN 0
335 #define SCTPCTL_ASSOC_RTX_MAX_MAX 0xFFFFFFFF
336 #define SCTPCTL_ASSOC_RTX_MAX_DEFAULT SCTP_DEF_MAX_SEND
338 /* path_rtx_max: Default maximum of retransmissions per path */
339 #define SCTPCTL_PATH_RTX_MAX_DESC "Default maximum of retransmissions per path"
340 #define SCTPCTL_PATH_RTX_MAX_MIN 0
341 #define SCTPCTL_PATH_RTX_MAX_MAX 0xFFFFFFFF
342 #define SCTPCTL_PATH_RTX_MAX_DEFAULT SCTP_DEF_MAX_PATH_RTX
344 /* path_pf_threshold: threshold for considering the path potentially failed */
345 #define SCTPCTL_PATH_PF_THRESHOLD_DESC "Default potentially failed threshold"
346 #define SCTPCTL_PATH_PF_THRESHOLD_MIN 0
347 #define SCTPCTL_PATH_PF_THRESHOLD_MAX 0xFFFF
348 #define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT SCTPCTL_PATH_PF_THRESHOLD_MAX
350 /* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
351 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
352 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN 0
353 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX 0xFFFFFFFF
354 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
356 /* incoming_streams: Default number of incoming streams */
357 #define SCTPCTL_INCOMING_STREAMS_DESC "Default number of incoming streams"
358 #define SCTPCTL_INCOMING_STREAMS_MIN 1
359 #define SCTPCTL_INCOMING_STREAMS_MAX 65535
360 #define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
362 /* outgoing_streams: Default number of outgoing streams */
363 #define SCTPCTL_OUTGOING_STREAMS_DESC "Default number of outgoing streams"
364 #define SCTPCTL_OUTGOING_STREAMS_MIN 1
365 #define SCTPCTL_OUTGOING_STREAMS_MAX 65535
366 #define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
368 /* cmt_on_off: CMT on/off flag */
369 #define SCTPCTL_CMT_ON_OFF_DESC "CMT settings"
370 #define SCTPCTL_CMT_ON_OFF_MIN SCTP_CMT_OFF
371 #define SCTPCTL_CMT_ON_OFF_MAX SCTP_CMT_MAX
372 #define SCTPCTL_CMT_ON_OFF_DEFAULT SCTP_CMT_OFF
374 /* cmt_use_dac: CMT DAC on/off flag */
375 #define SCTPCTL_CMT_USE_DAC_DESC "CMT DAC on/off flag"
376 #define SCTPCTL_CMT_USE_DAC_MIN 0
377 #define SCTPCTL_CMT_USE_DAC_MAX 1
378 #define SCTPCTL_CMT_USE_DAC_DEFAULT 0
380 /* cwnd_maxburst: Use a CWND adjusting to implement maxburst */
381 #define SCTPCTL_CWND_MAXBURST_DESC "Adjust congestion control window to limit maximum burst when sending"
382 #define SCTPCTL_CWND_MAXBURST_MIN 0
383 #define SCTPCTL_CWND_MAXBURST_MAX 1
384 #define SCTPCTL_CWND_MAXBURST_DEFAULT 1
386 /* nat_friendly: SCTP NAT friendly operation */
387 #define SCTPCTL_NAT_FRIENDLY_DESC "SCTP NAT friendly operation"
388 #define SCTPCTL_NAT_FRIENDLY_MIN 0
389 #define SCTPCTL_NAT_FRIENDLY_MAX 1
390 #define SCTPCTL_NAT_FRIENDLY_DEFAULT 1
392 /* abc_l_var: SCTP ABC max increase per SACK (L) */
393 #define SCTPCTL_ABC_L_VAR_DESC "SCTP ABC max increase per SACK (L)"
394 #define SCTPCTL_ABC_L_VAR_MIN 0
395 #define SCTPCTL_ABC_L_VAR_MAX 0xFFFFFFFF
396 #define SCTPCTL_ABC_L_VAR_DEFAULT 2
398 /* max_chained_mbufs: Default max number of small mbufs on a chain */
399 #define SCTPCTL_MAX_CHAINED_MBUFS_DESC "Default max number of small mbufs on a chain"
400 #define SCTPCTL_MAX_CHAINED_MBUFS_MIN 0
401 #define SCTPCTL_MAX_CHAINED_MBUFS_MAX 0xFFFFFFFF
402 #define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT SCTP_DEFAULT_MBUFS_IN_CHAIN
404 /* do_sctp_drain: Should SCTP respond to the drain calls */
405 #define SCTPCTL_DO_SCTP_DRAIN_DESC "Should SCTP respond to the drain calls"
406 #define SCTPCTL_DO_SCTP_DRAIN_MIN 0
407 #define SCTPCTL_DO_SCTP_DRAIN_MAX 1
408 #define SCTPCTL_DO_SCTP_DRAIN_DEFAULT 1
410 /* hb_max_burst: Confirmation Heartbeat max burst? */
411 #define SCTPCTL_HB_MAX_BURST_DESC "Confirmation Heartbeat max burst"
412 #define SCTPCTL_HB_MAX_BURST_MIN 1
413 #define SCTPCTL_HB_MAX_BURST_MAX 0xFFFFFFFF
414 #define SCTPCTL_HB_MAX_BURST_DEFAULT SCTP_DEF_HBMAX_BURST
416 /* abort_at_limit: When one-2-one hits qlimit abort */
417 #define SCTPCTL_ABORT_AT_LIMIT_DESC "Abort when one-to-one hits qlimit"
418 #define SCTPCTL_ABORT_AT_LIMIT_MIN 0
419 #define SCTPCTL_ABORT_AT_LIMIT_MAX 1
420 #define SCTPCTL_ABORT_AT_LIMIT_DEFAULT 0
422 /* min_residual: min residual in a data fragment leftover */
423 #define SCTPCTL_MIN_RESIDUAL_DESC "Minimum residual data chunk in second part of split"
424 #define SCTPCTL_MIN_RESIDUAL_MIN 20
425 #define SCTPCTL_MIN_RESIDUAL_MAX 65535
426 #define SCTPCTL_MIN_RESIDUAL_DEFAULT 1452
428 /* max_retran_chunk: max chunk retransmissions */
429 #define SCTPCTL_MAX_RETRAN_CHUNK_DESC "Maximum times an unlucky chunk can be retransmitted before assoc abort"
430 #define SCTPCTL_MAX_RETRAN_CHUNK_MIN 0
431 #define SCTPCTL_MAX_RETRAN_CHUNK_MAX 65535
432 #define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT 30
434 /* sctp_logging: This gives us logging when the options are enabled */
435 #define SCTPCTL_LOGGING_LEVEL_DESC "Ltrace/KTR trace logging level"
436 #define SCTPCTL_LOGGING_LEVEL_MIN 0
437 #define SCTPCTL_LOGGING_LEVEL_MAX 0xffffffff
438 #define SCTPCTL_LOGGING_LEVEL_DEFAULT 0
440 /* JRS - default congestion control module sysctl */
441 #define SCTPCTL_DEFAULT_CC_MODULE_DESC "Default congestion control module"
442 #define SCTPCTL_DEFAULT_CC_MODULE_MIN 0
443 #define SCTPCTL_DEFAULT_CC_MODULE_MAX 2
444 #define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT 0
446 /* RS - default stream scheduling module sysctl */
447 #define SCTPCTL_DEFAULT_SS_MODULE_DESC "Default stream scheduling module"
448 #define SCTPCTL_DEFAULT_SS_MODULE_MIN 0
449 #define SCTPCTL_DEFAULT_SS_MODULE_MAX 5
450 #define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT 0
452 /* RRS - default fragment interleave */
453 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC "Default fragment interleave level"
454 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN 0
455 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX 2
456 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
458 /* mobility_base: Enable SCTP mobility support */
459 #define SCTPCTL_MOBILITY_BASE_DESC "Enable SCTP base mobility"
460 #define SCTPCTL_MOBILITY_BASE_MIN 0
461 #define SCTPCTL_MOBILITY_BASE_MAX 1
462 #define SCTPCTL_MOBILITY_BASE_DEFAULT 0
464 /* mobility_fasthandoff: Enable SCTP fast handoff support */
465 #define SCTPCTL_MOBILITY_FASTHANDOFF_DESC "Enable SCTP fast handoff"
466 #define SCTPCTL_MOBILITY_FASTHANDOFF_MIN 0
467 #define SCTPCTL_MOBILITY_FASTHANDOFF_MAX 1
468 #define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT 0
470 /* Enable SCTP/UDP tunneling port */
471 #define SCTPCTL_UDP_TUNNELING_PORT_DESC "Set the SCTP/UDP tunneling port"
472 #define SCTPCTL_UDP_TUNNELING_PORT_MIN 0
473 #define SCTPCTL_UDP_TUNNELING_PORT_MAX 65535
474 #define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT 0
476 /* Enable sending of the SACK-IMMEDIATELY bit */
477 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC "Enable sending of the SACK-IMMEDIATELY-bit"
478 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN 0
479 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX 1
480 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX
482 /* Enable sending of the NAT-FRIENDLY message */
483 #define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs"
484 #define SCTPCTL_NAT_FRIENDLY_INITS_MIN 0
485 #define SCTPCTL_NAT_FRIENDLY_INITS_MAX 1
486 #define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT SCTPCTL_NAT_FRIENDLY_INITS_MIN
488 /* Vtag time wait in seconds */
489 #define SCTPCTL_TIME_WAIT_DESC "Vtag time wait time in seconds, 0 disables it"
490 #define SCTPCTL_TIME_WAIT_MIN 0
491 #define SCTPCTL_TIME_WAIT_MAX 0xffffffff
492 #define SCTPCTL_TIME_WAIT_DEFAULT SCTP_TIME_WAIT
494 /* Enable Send/Receive buffer splitting */
495 #define SCTPCTL_BUFFER_SPLITTING_DESC "Enable send/receive buffer splitting"
496 #define SCTPCTL_BUFFER_SPLITTING_MIN 0
497 #define SCTPCTL_BUFFER_SPLITTING_MAX 0x3
498 #define SCTPCTL_BUFFER_SPLITTING_DEFAULT SCTPCTL_BUFFER_SPLITTING_MIN
500 /* Initial congestion window in MTUs */
501 #define SCTPCTL_INITIAL_CWND_DESC "Defines the initial congestion window size in MTUs"
502 #define SCTPCTL_INITIAL_CWND_MIN 0
503 #define SCTPCTL_INITIAL_CWND_MAX 0xffffffff
504 #define SCTPCTL_INITIAL_CWND_DEFAULT 3
506 /* rttvar smooth avg for bw calc */
507 #define SCTPCTL_RTTVAR_BW_DESC "Shift amount DCCC uses for bw smoothing on rtt calc"
508 #define SCTPCTL_RTTVAR_BW_MIN 0
509 #define SCTPCTL_RTTVAR_BW_MAX 32
510 #define SCTPCTL_RTTVAR_BW_DEFAULT 4
512 /* rttvar smooth avg for bw calc */
513 #define SCTPCTL_RTTVAR_RTT_DESC "Shift amount DCCC uses for rtt smoothing on rtt calc"
514 #define SCTPCTL_RTTVAR_RTT_MIN 0
515 #define SCTPCTL_RTTVAR_RTT_MAX 32
516 #define SCTPCTL_RTTVAR_RTT_DEFAULT 5
518 #define SCTPCTL_RTTVAR_EQRET_DESC "Whether DCCC increases cwnd when the rtt and bw are unchanged"
519 #define SCTPCTL_RTTVAR_EQRET_MIN 0
520 #define SCTPCTL_RTTVAR_EQRET_MAX 1
521 #define SCTPCTL_RTTVAR_EQRET_DEFAULT 0
523 #define SCTPCTL_RTTVAR_STEADYS_DESC "Number of identical bw measurements DCCC takes to try step down of cwnd"
524 #define SCTPCTL_RTTVAR_STEADYS_MIN 0
525 #define SCTPCTL_RTTVAR_STEADYS_MAX 0xFFFF
526 #define SCTPCTL_RTTVAR_STEADYS_DEFAULT 20 /* 0 means disable feature */
528 #define SCTPCTL_RTTVAR_DCCCECN_DESC "Enable ECN for DCCC."
529 #define SCTPCTL_RTTVAR_DCCCECN_MIN 0
530 #define SCTPCTL_RTTVAR_DCCCECN_MAX 1
531 #define SCTPCTL_RTTVAR_DCCCECN_DEFAULT 1 /* 0 means disable feature */
533 #define SCTPCTL_BLACKHOLE_DESC "Enable SCTP blackholing, see blackhole(4) for more details"
534 #define SCTPCTL_BLACKHOLE_MIN 0
535 #define SCTPCTL_BLACKHOLE_MAX 2
536 #define SCTPCTL_BLACKHOLE_DEFAULT SCTPCTL_BLACKHOLE_MIN
538 /* sendall_limit: Maximum message with SCTP_SENDALL */
539 #define SCTPCTL_SENDALL_LIMIT_DESC "Maximum size of a message send with SCTP_SENDALL"
540 #define SCTPCTL_SENDALL_LIMIT_MIN 0
541 #define SCTPCTL_SENDALL_LIMIT_MAX 0xFFFFFFFF
542 #define SCTPCTL_SENDALL_LIMIT_DEFAULT 1432
544 #define SCTPCTL_DIAG_INFO_CODE_DESC "Diagnostic information error cause code"
545 #define SCTPCTL_DIAG_INFO_CODE_MIN 0
546 #define SCTPCTL_DIAG_INFO_CODE_MAX 65535
547 #define SCTPCTL_DIAG_INFO_CODE_DEFAULT 0
549 #if defined(SCTP_DEBUG)
550 /* debug: Configure debug output */
551 #define SCTPCTL_DEBUG_DESC "Configure debug output"
552 #define SCTPCTL_DEBUG_MIN 0
553 #define SCTPCTL_DEBUG_MAX 0xFFFFFFFF
554 #define SCTPCTL_DEBUG_DEFAULT 0
557 #if defined(_KERNEL) || defined(__Userspace__)
558 #if defined(SYSCTL_DECL)
559 SYSCTL_DECL(_net_inet_sctp);
562 void sctp_init_sysctls(void);
565 #endif /* __sctp_sysctl_h__ */