2 * Copyright (c) 2007, 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.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
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.
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.
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
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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.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #ifndef _NETINET_SCTP_SYSCTL_H_
37 #define _NETINET_SCTP_SYSCTL_H_
39 #include <netinet/sctp_os.h>
40 #include <netinet/sctp_constants.h>
43 uint32_t sctp_sendspace;
44 uint32_t sctp_recvspace;
45 uint32_t sctp_auto_asconf;
46 uint32_t sctp_multiple_asconfs;
47 uint32_t sctp_ecn_enable;
48 uint32_t sctp_fr_max_burst_default;
49 uint32_t sctp_strict_sacks;
50 uint32_t sctp_peer_chunk_oh;
51 uint32_t sctp_max_burst_default;
52 uint32_t sctp_max_chunks_on_queue;
53 uint32_t sctp_hashtblsize;
54 uint32_t sctp_pcbtblsize;
55 uint32_t sctp_min_split_point;
56 uint32_t sctp_chunkscale;
57 uint32_t sctp_delayed_sack_time_default;
58 uint32_t sctp_sack_freq_default;
59 uint32_t sctp_system_free_resc_limit;
60 uint32_t sctp_asoc_free_resc_limit;
61 uint32_t sctp_heartbeat_interval_default;
62 uint32_t sctp_pmtu_raise_time_default;
63 uint32_t sctp_shutdown_guard_time_default;
64 uint32_t sctp_secret_lifetime_default;
65 uint32_t sctp_rto_max_default;
66 uint32_t sctp_rto_min_default;
67 uint32_t sctp_rto_initial_default;
68 uint32_t sctp_init_rto_max_default;
69 uint32_t sctp_valid_cookie_life_default;
70 uint32_t sctp_init_rtx_max_default;
71 uint32_t sctp_assoc_rtx_max_default;
72 uint32_t sctp_path_rtx_max_default;
73 uint32_t sctp_path_pf_threshold;
74 uint32_t sctp_add_more_threshold;
75 uint32_t sctp_nr_outgoing_streams_default;
76 uint32_t sctp_cmt_on_off;
77 uint32_t sctp_cmt_use_dac;
78 /* EY 5/5/08 - nr_sack flag variable */
79 uint32_t sctp_nr_sack_on_off;
80 uint32_t sctp_use_cwnd_based_maxburst;
81 uint32_t sctp_asconf_auth_nochk;
82 uint32_t sctp_auth_disable;
83 uint32_t sctp_nat_friendly;
84 uint32_t sctp_L2_abc_variable;
85 uint32_t sctp_mbuf_threshold_count;
86 uint32_t sctp_do_drain;
87 uint32_t sctp_hb_maxburst;
88 uint32_t sctp_abort_if_one_2_one_hits_limit;
89 uint32_t sctp_strict_data_order;
90 uint32_t sctp_min_residual;
91 uint32_t sctp_max_retran_chunk;
92 uint32_t sctp_logging_level;
93 /* JRS - Variable for default congestion control module */
94 uint32_t sctp_default_cc_module;
95 /* RS - Variable for default stream scheduling module */
96 uint32_t sctp_default_ss_module;
97 uint32_t sctp_default_frag_interleave;
98 uint32_t sctp_mobility_base;
99 uint32_t sctp_mobility_fasthandoff;
100 uint32_t sctp_inits_include_nat_friendly;
101 uint32_t sctp_rttvar_bw;
102 uint32_t sctp_rttvar_rtt;
103 uint32_t sctp_rttvar_eqret;
104 uint32_t sctp_steady_step;
105 uint32_t sctp_use_dccc_ecn;
106 #if defined(SCTP_LOCAL_TRACE_BUF)
107 struct sctp_log sctp_log;
109 uint32_t sctp_udp_tunneling_port;
110 uint32_t sctp_enable_sack_immediately;
111 uint32_t sctp_vtag_time_wait;
112 uint32_t sctp_buffer_splitting;
113 uint32_t sctp_initial_cwnd;
114 uint32_t sctp_blackhole;
115 #if defined(SCTP_DEBUG)
116 uint32_t sctp_debug_on;
118 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
119 uint32_t sctp_output_unlocked;
124 * limits for the sysctl variables
126 /* maxdgram: Maximum outgoing SCTP buffer size */
127 #define SCTPCTL_MAXDGRAM_DESC "Maximum outgoing SCTP buffer size"
128 #define SCTPCTL_MAXDGRAM_MIN 0
129 #define SCTPCTL_MAXDGRAM_MAX 0xFFFFFFFF
130 #define SCTPCTL_MAXDGRAM_DEFAULT 262144 /* 256k */
132 /* recvspace: Maximum incoming SCTP buffer size */
133 #define SCTPCTL_RECVSPACE_DESC "Maximum incoming SCTP buffer size"
134 #define SCTPCTL_RECVSPACE_MIN 0
135 #define SCTPCTL_RECVSPACE_MAX 0xFFFFFFFF
136 #define SCTPCTL_RECVSPACE_DEFAULT 262144 /* 256k */
138 /* autoasconf: Enable SCTP Auto-ASCONF */
139 #define SCTPCTL_AUTOASCONF_DESC "Enable SCTP Auto-ASCONF"
140 #define SCTPCTL_AUTOASCONF_MIN 0
141 #define SCTPCTL_AUTOASCONF_MAX 1
142 #define SCTPCTL_AUTOASCONF_DEFAULT SCTP_DEFAULT_AUTO_ASCONF
144 /* autoasconf: Enable SCTP Auto-ASCONF */
145 #define SCTPCTL_MULTIPLEASCONFS_DESC "Enable SCTP Muliple-ASCONFs"
146 #define SCTPCTL_MULTIPLEASCONFS_MIN 0
147 #define SCTPCTL_MULTIPLEASCONFS_MAX 1
148 #define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
150 /* ecn_enable: Enable SCTP ECN */
151 #define SCTPCTL_ECN_ENABLE_DESC "Enable SCTP ECN"
152 #define SCTPCTL_ECN_ENABLE_MIN 0
153 #define SCTPCTL_ECN_ENABLE_MAX 1
154 #define SCTPCTL_ECN_ENABLE_DEFAULT 1
156 /* strict_sacks: Enable SCTP Strict SACK checking */
157 #define SCTPCTL_STRICT_SACKS_DESC "Enable SCTP Strict SACK checking"
158 #define SCTPCTL_STRICT_SACKS_MIN 0
159 #define SCTPCTL_STRICT_SACKS_MAX 1
160 #define SCTPCTL_STRICT_SACKS_DEFAULT 1
162 /* loopback_nocsum: Enable NO Csum on packets sent on loopback */
163 #define SCTPCTL_LOOPBACK_NOCSUM_DESC "Enable NO Csum on packets sent on loopback"
164 #define SCTPCTL_LOOPBACK_NOCSUM_MIN 0
165 #define SCTPCTL_LOOPBACK_NOCSUM_MAX 1
166 #define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
168 /* peer_chkoh: Amount to debit peers rwnd per chunk sent */
169 #define SCTPCTL_PEER_CHKOH_DESC "Amount to debit peers rwnd per chunk sent"
170 #define SCTPCTL_PEER_CHKOH_MIN 0
171 #define SCTPCTL_PEER_CHKOH_MAX 0xFFFFFFFF
172 #define SCTPCTL_PEER_CHKOH_DEFAULT 256
174 /* maxburst: Default max burst for sctp endpoints */
175 #define SCTPCTL_MAXBURST_DESC "Default max burst for sctp endpoints"
176 #define SCTPCTL_MAXBURST_MIN 0
177 #define SCTPCTL_MAXBURST_MAX 0xFFFFFFFF
178 #define SCTPCTL_MAXBURST_DEFAULT SCTP_DEF_MAX_BURST
180 /* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
181 #define SCTPCTL_FRMAXBURST_DESC "Default fr max burst for sctp endpoints"
182 #define SCTPCTL_FRMAXBURST_MIN 0
183 #define SCTPCTL_FRMAXBURST_MAX 0xFFFFFFFF
184 #define SCTPCTL_FRMAXBURST_DEFAULT SCTP_DEF_FRMAX_BURST
187 /* maxchunks: Default max chunks on queue per asoc */
188 #define SCTPCTL_MAXCHUNKS_DESC "Default max chunks on queue per asoc"
189 #define SCTPCTL_MAXCHUNKS_MIN 0
190 #define SCTPCTL_MAXCHUNKS_MAX 0xFFFFFFFF
191 #define SCTPCTL_MAXCHUNKS_DEFAULT SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
193 /* tcbhashsize: Tunable for Hash table sizes */
194 #define SCTPCTL_TCBHASHSIZE_DESC "Tunable for TCB hash table sizes"
195 #define SCTPCTL_TCBHASHSIZE_MIN 1
196 #define SCTPCTL_TCBHASHSIZE_MAX 0xFFFFFFFF
197 #define SCTPCTL_TCBHASHSIZE_DEFAULT SCTP_TCBHASHSIZE
199 /* pcbhashsize: Tunable for PCB Hash table sizes */
200 #define SCTPCTL_PCBHASHSIZE_DESC "Tunable for PCB hash table sizes"
201 #define SCTPCTL_PCBHASHSIZE_MIN 1
202 #define SCTPCTL_PCBHASHSIZE_MAX 0xFFFFFFFF
203 #define SCTPCTL_PCBHASHSIZE_DEFAULT SCTP_PCBHASHSIZE
205 /* min_split_point: Minimum size when splitting a chunk */
206 #define SCTPCTL_MIN_SPLIT_POINT_DESC "Minimum size when splitting a chunk"
207 #define SCTPCTL_MIN_SPLIT_POINT_MIN 0
208 #define SCTPCTL_MIN_SPLIT_POINT_MAX 0xFFFFFFFF
209 #define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
211 /* chunkscale: Tunable for Scaling of number of chunks and messages */
212 #define SCTPCTL_CHUNKSCALE_DESC "Tunable for Scaling of number of chunks and messages"
213 #define SCTPCTL_CHUNKSCALE_MIN 1
214 #define SCTPCTL_CHUNKSCALE_MAX 0xFFFFFFFF
215 #define SCTPCTL_CHUNKSCALE_DEFAULT SCTP_CHUNKQUEUE_SCALE
217 /* delayed_sack_time: Default delayed SACK timer in ms */
218 #define SCTPCTL_DELAYED_SACK_TIME_DESC "Default delayed SACK timer in ms"
219 #define SCTPCTL_DELAYED_SACK_TIME_MIN 0
220 #define SCTPCTL_DELAYED_SACK_TIME_MAX 0xFFFFFFFF
221 #define SCTPCTL_DELAYED_SACK_TIME_DEFAULT SCTP_RECV_MSEC
223 /* sack_freq: Default SACK frequency */
224 #define SCTPCTL_SACK_FREQ_DESC "Default SACK frequency"
225 #define SCTPCTL_SACK_FREQ_MIN 0
226 #define SCTPCTL_SACK_FREQ_MAX 0xFFFFFFFF
227 #define SCTPCTL_SACK_FREQ_DEFAULT SCTP_DEFAULT_SACK_FREQ
229 /* sys_resource: Max number of cached resources in the system */
230 #define SCTPCTL_SYS_RESOURCE_DESC "Max number of cached resources in the system"
231 #define SCTPCTL_SYS_RESOURCE_MIN 0
232 #define SCTPCTL_SYS_RESOURCE_MAX 0xFFFFFFFF
233 #define SCTPCTL_SYS_RESOURCE_DEFAULT SCTP_DEF_SYSTEM_RESC_LIMIT
235 /* asoc_resource: Max number of cached resources in an asoc */
236 #define SCTPCTL_ASOC_RESOURCE_DESC "Max number of cached resources in an asoc"
237 #define SCTPCTL_ASOC_RESOURCE_MIN 0
238 #define SCTPCTL_ASOC_RESOURCE_MAX 0xFFFFFFFF
239 #define SCTPCTL_ASOC_RESOURCE_DEFAULT SCTP_DEF_ASOC_RESC_LIMIT
241 /* heartbeat_interval: Default heartbeat interval in ms */
242 #define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
243 #define SCTPCTL_HEARTBEAT_INTERVAL_MIN 0
244 #define SCTPCTL_HEARTBEAT_INTERVAL_MAX 0xFFFFFFFF
245 #define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT SCTP_HB_DEFAULT_MSEC
247 /* pmtu_raise_time: Default PMTU raise timer in seconds */
248 #define SCTPCTL_PMTU_RAISE_TIME_DESC "Default PMTU raise timer in seconds"
249 #define SCTPCTL_PMTU_RAISE_TIME_MIN 0
250 #define SCTPCTL_PMTU_RAISE_TIME_MAX 0xFFFFFFFF
251 #define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
253 /* shutdown_guard_time: Default shutdown guard timer in seconds */
254 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC "Default shutdown guard timer in seconds"
255 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN 0
256 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX 0xFFFFFFFF
257 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT SCTP_DEF_MAX_SHUTDOWN_SEC
259 /* secret_lifetime: Default secret lifetime in seconds */
260 #define SCTPCTL_SECRET_LIFETIME_DESC "Default secret lifetime in seconds"
261 #define SCTPCTL_SECRET_LIFETIME_MIN 0
262 #define SCTPCTL_SECRET_LIFETIME_MAX 0xFFFFFFFF
263 #define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
265 /* rto_max: Default maximum retransmission timeout in ms */
266 #define SCTPCTL_RTO_MAX_DESC "Default maximum retransmission timeout in ms"
267 #define SCTPCTL_RTO_MAX_MIN 0
268 #define SCTPCTL_RTO_MAX_MAX 0xFFFFFFFF
269 #define SCTPCTL_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
271 /* rto_min: Default minimum retransmission timeout in ms */
272 #define SCTPCTL_RTO_MIN_DESC "Default minimum retransmission timeout in ms"
273 #define SCTPCTL_RTO_MIN_MIN 0
274 #define SCTPCTL_RTO_MIN_MAX 0xFFFFFFFF
275 #define SCTPCTL_RTO_MIN_DEFAULT SCTP_RTO_LOWER_BOUND
277 /* rto_initial: Default initial retransmission timeout in ms */
278 #define SCTPCTL_RTO_INITIAL_DESC "Default initial retransmission timeout in ms"
279 #define SCTPCTL_RTO_INITIAL_MIN 0
280 #define SCTPCTL_RTO_INITIAL_MAX 0xFFFFFFFF
281 #define SCTPCTL_RTO_INITIAL_DEFAULT SCTP_RTO_INITIAL
283 /* init_rto_max: Default maximum retransmission timeout during association setup in ms */
284 #define SCTPCTL_INIT_RTO_MAX_DESC "Default maximum retransmission timeout during association setup in ms"
285 #define SCTPCTL_INIT_RTO_MAX_MIN 0
286 #define SCTPCTL_INIT_RTO_MAX_MAX 0xFFFFFFFF
287 #define SCTPCTL_INIT_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
289 /* valid_cookie_life: Default cookie lifetime in sec */
290 #define SCTPCTL_VALID_COOKIE_LIFE_DESC "Default cookie lifetime in seconds"
291 #define SCTPCTL_VALID_COOKIE_LIFE_MIN 0
292 #define SCTPCTL_VALID_COOKIE_LIFE_MAX 0xFFFFFFFF
293 #define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT SCTP_DEFAULT_COOKIE_LIFE
295 /* init_rtx_max: Default maximum number of retransmission for INIT chunks */
296 #define SCTPCTL_INIT_RTX_MAX_DESC "Default maximum number of retransmission for INIT chunks"
297 #define SCTPCTL_INIT_RTX_MAX_MIN 0
298 #define SCTPCTL_INIT_RTX_MAX_MAX 0xFFFFFFFF
299 #define SCTPCTL_INIT_RTX_MAX_DEFAULT SCTP_DEF_MAX_INIT
301 /* assoc_rtx_max: Default maximum number of retransmissions per association */
302 #define SCTPCTL_ASSOC_RTX_MAX_DESC "Default maximum number of retransmissions per association"
303 #define SCTPCTL_ASSOC_RTX_MAX_MIN 0
304 #define SCTPCTL_ASSOC_RTX_MAX_MAX 0xFFFFFFFF
305 #define SCTPCTL_ASSOC_RTX_MAX_DEFAULT SCTP_DEF_MAX_SEND
307 /* path_rtx_max: Default maximum of retransmissions per path */
308 #define SCTPCTL_PATH_RTX_MAX_DESC "Default maximum of retransmissions per path"
309 #define SCTPCTL_PATH_RTX_MAX_MIN 0
310 #define SCTPCTL_PATH_RTX_MAX_MAX 0xFFFFFFFF
311 #define SCTPCTL_PATH_RTX_MAX_DEFAULT SCTP_DEF_MAX_PATH_RTX
313 /* path_pf_threshold: threshold for considering the path potentially failed */
314 #define SCTPCTL_PATH_PF_THRESHOLD_DESC "Default potentially failed threshold"
315 #define SCTPCTL_PATH_PF_THRESHOLD_MIN 0
316 #define SCTPCTL_PATH_PF_THRESHOLD_MAX 0xFFFF
317 #define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT SCTPCTL_PATH_PF_THRESHOLD_MAX
319 /* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
320 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
321 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN 0
322 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX 0xFFFFFFFF
323 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
325 /* outgoing_streams: Default number of outgoing streams */
326 #define SCTPCTL_OUTGOING_STREAMS_DESC "Default number of outgoing streams"
327 #define SCTPCTL_OUTGOING_STREAMS_MIN 1
328 #define SCTPCTL_OUTGOING_STREAMS_MAX 65535
329 #define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
331 /* cmt_on_off: CMT on/off flag */
332 #define SCTPCTL_CMT_ON_OFF_DESC "CMT settings"
333 #define SCTPCTL_CMT_ON_OFF_MIN SCTP_CMT_OFF
334 #define SCTPCTL_CMT_ON_OFF_MAX SCTP_CMT_MAX
335 #define SCTPCTL_CMT_ON_OFF_DEFAULT SCTP_CMT_OFF
337 /* EY - nr_sack_on_off: NR_SACK on/off flag */
338 #define SCTPCTL_NR_SACK_ON_OFF_DESC "NR_SACK on/off flag"
339 #define SCTPCTL_NR_SACK_ON_OFF_MIN 0
340 #define SCTPCTL_NR_SACK_ON_OFF_MAX 1
341 #define SCTPCTL_NR_SACK_ON_OFF_DEFAULT 0
343 /* cmt_use_dac: CMT DAC on/off flag */
344 #define SCTPCTL_CMT_USE_DAC_DESC "CMT DAC on/off flag"
345 #define SCTPCTL_CMT_USE_DAC_MIN 0
346 #define SCTPCTL_CMT_USE_DAC_MAX 1
347 #define SCTPCTL_CMT_USE_DAC_DEFAULT 0
349 /* cwnd_maxburst: Use a CWND adjusting maxburst */
350 #define SCTPCTL_CWND_MAXBURST_DESC "Use a CWND adjusting maxburst"
351 #define SCTPCTL_CWND_MAXBURST_MIN 0
352 #define SCTPCTL_CWND_MAXBURST_MAX 1
353 #define SCTPCTL_CWND_MAXBURST_DEFAULT 1
355 /* asconf_auth_nochk: Disable SCTP ASCONF AUTH requirement */
356 #define SCTPCTL_ASCONF_AUTH_NOCHK_DESC "Disable SCTP ASCONF AUTH requirement"
357 #define SCTPCTL_ASCONF_AUTH_NOCHK_MIN 0
358 #define SCTPCTL_ASCONF_AUTH_NOCHK_MAX 1
359 #define SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT 0
361 /* auth_disable: Disable SCTP AUTH function */
362 #define SCTPCTL_AUTH_DISABLE_DESC "Disable SCTP AUTH function"
363 #define SCTPCTL_AUTH_DISABLE_MIN 0
364 #define SCTPCTL_AUTH_DISABLE_MAX 1
365 #define SCTPCTL_AUTH_DISABLE_DEFAULT 0
367 /* nat_friendly: SCTP NAT friendly operation */
368 #define SCTPCTL_NAT_FRIENDLY_DESC "SCTP NAT friendly operation"
369 #define SCTPCTL_NAT_FRIENDLY_MIN 0
370 #define SCTPCTL_NAT_FRIENDLY_MAX 1
371 #define SCTPCTL_NAT_FRIENDLY_DEFAULT 1
373 /* abc_l_var: SCTP ABC max increase per SACK (L) */
374 #define SCTPCTL_ABC_L_VAR_DESC "SCTP ABC max increase per SACK (L)"
375 #define SCTPCTL_ABC_L_VAR_MIN 0
376 #define SCTPCTL_ABC_L_VAR_MAX 0xFFFFFFFF
377 #define SCTPCTL_ABC_L_VAR_DEFAULT 2
379 /* max_chained_mbufs: Default max number of small mbufs on a chain */
380 #define SCTPCTL_MAX_CHAINED_MBUFS_DESC "Default max number of small mbufs on a chain"
381 #define SCTPCTL_MAX_CHAINED_MBUFS_MIN 0
382 #define SCTPCTL_MAX_CHAINED_MBUFS_MAX 0xFFFFFFFF
383 #define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT SCTP_DEFAULT_MBUFS_IN_CHAIN
385 /* do_sctp_drain: Should SCTP respond to the drain calls */
386 #define SCTPCTL_DO_SCTP_DRAIN_DESC "Should SCTP respond to the drain calls"
387 #define SCTPCTL_DO_SCTP_DRAIN_MIN 0
388 #define SCTPCTL_DO_SCTP_DRAIN_MAX 1
389 #define SCTPCTL_DO_SCTP_DRAIN_DEFAULT 1
391 /* hb_max_burst: Confirmation Heartbeat max burst? */
392 #define SCTPCTL_HB_MAX_BURST_DESC "Confirmation Heartbeat max burst"
393 #define SCTPCTL_HB_MAX_BURST_MIN 1
394 #define SCTPCTL_HB_MAX_BURST_MAX 0xFFFFFFFF
395 #define SCTPCTL_HB_MAX_BURST_DEFAULT SCTP_DEF_HBMAX_BURST
397 /* abort_at_limit: When one-2-one hits qlimit abort */
398 #define SCTPCTL_ABORT_AT_LIMIT_DESC "When one-2-one hits qlimit abort"
399 #define SCTPCTL_ABORT_AT_LIMIT_MIN 0
400 #define SCTPCTL_ABORT_AT_LIMIT_MAX 1
401 #define SCTPCTL_ABORT_AT_LIMIT_DEFAULT 0
403 /* strict_data_order: Enforce strict data ordering, abort if control inside data */
404 #define SCTPCTL_STRICT_DATA_ORDER_DESC "Enforce strict data ordering, abort if control inside data"
405 #define SCTPCTL_STRICT_DATA_ORDER_MIN 0
406 #define SCTPCTL_STRICT_DATA_ORDER_MAX 1
407 #define SCTPCTL_STRICT_DATA_ORDER_DEFAULT 0
409 /* min_residual: min residual in a data fragment leftover */
410 #define SCTPCTL_MIN_RESIDUAL_DESC "Minimum residual data chunk in second part of split"
411 #define SCTPCTL_MIN_RESIDUAL_MIN 20
412 #define SCTPCTL_MIN_RESIDUAL_MAX 65535
413 #define SCTPCTL_MIN_RESIDUAL_DEFAULT 1452
415 /* max_retran_chunk: max chunk retransmissions */
416 #define SCTPCTL_MAX_RETRAN_CHUNK_DESC "Maximum times an unlucky chunk can be retran'd before assoc abort"
417 #define SCTPCTL_MAX_RETRAN_CHUNK_MIN 0
418 #define SCTPCTL_MAX_RETRAN_CHUNK_MAX 65535
419 #define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT 30
421 /* sctp_logging: This gives us logging when the options are enabled */
422 #define SCTPCTL_LOGGING_LEVEL_DESC "Ltrace/KTR trace logging level"
423 #define SCTPCTL_LOGGING_LEVEL_MIN 0
424 #define SCTPCTL_LOGGING_LEVEL_MAX 0xffffffff
425 #define SCTPCTL_LOGGING_LEVEL_DEFAULT 0
427 /* JRS - default congestion control module sysctl */
428 #define SCTPCTL_DEFAULT_CC_MODULE_DESC "Default congestion control module"
429 #define SCTPCTL_DEFAULT_CC_MODULE_MIN 0
430 #define SCTPCTL_DEFAULT_CC_MODULE_MAX 2
431 #define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT 0
433 /* RS - default stream scheduling module sysctl */
434 #define SCTPCTL_DEFAULT_SS_MODULE_DESC "Default stream scheduling module"
435 #define SCTPCTL_DEFAULT_SS_MODULE_MIN 0
436 #define SCTPCTL_DEFAULT_SS_MODULE_MAX 5
437 #define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT 0
439 /* RRS - default fragment interleave */
440 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC "Default fragment interleave level"
441 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN 0
442 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX 2
443 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
445 /* mobility_base: Enable SCTP mobility support */
446 #define SCTPCTL_MOBILITY_BASE_DESC "Enable SCTP base mobility"
447 #define SCTPCTL_MOBILITY_BASE_MIN 0
448 #define SCTPCTL_MOBILITY_BASE_MAX 1
449 #define SCTPCTL_MOBILITY_BASE_DEFAULT SCTP_DEFAULT_MOBILITY_BASE
451 /* mobility_fasthandoff: Enable SCTP fast handoff support */
452 #define SCTPCTL_MOBILITY_FASTHANDOFF_DESC "Enable SCTP fast handoff"
453 #define SCTPCTL_MOBILITY_FASTHANDOFF_MIN 0
454 #define SCTPCTL_MOBILITY_FASTHANDOFF_MAX 1
455 #define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT SCTP_DEFAULT_MOBILITY_FASTHANDOFF
457 /* Enable SCTP/UDP tunneling port */
458 #define SCTPCTL_UDP_TUNNELING_PORT_DESC "Set the SCTP/UDP tunneling port"
459 #define SCTPCTL_UDP_TUNNELING_PORT_MIN 0
460 #define SCTPCTL_UDP_TUNNELING_PORT_MAX 65535
461 #define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT SCTP_OVER_UDP_TUNNELING_PORT
463 /* Enable sending of the SACK-IMMEDIATELY bit */
464 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC "Enable sending of the SACK-IMMEDIATELY-bit."
465 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN 0
466 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX 1
467 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN
469 /* Enable sending of the NAT-FRIENDLY message */
470 #define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs."
471 #define SCTPCTL_NAT_FRIENDLY_INITS_MIN 0
472 #define SCTPCTL_NAT_FRIENDLY_INITS_MAX 1
473 #define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT SCTPCTL_NAT_FRIENDLY_INITS_MIN
475 /* Vtag time wait in seconds */
476 #define SCTPCTL_TIME_WAIT_DESC "Vtag time wait time in seconds, 0 disables it."
477 #define SCTPCTL_TIME_WAIT_MIN 0
478 #define SCTPCTL_TIME_WAIT_MAX 0xffffffff
479 #define SCTPCTL_TIME_WAIT_DEFAULT SCTP_TIME_WAIT
481 /* Enable Send/Receive buffer splitting */
482 #define SCTPCTL_BUFFER_SPLITTING_DESC "Enable send/receive buffer splitting."
483 #define SCTPCTL_BUFFER_SPLITTING_MIN 0
484 #define SCTPCTL_BUFFER_SPLITTING_MAX 0x3
485 #define SCTPCTL_BUFFER_SPLITTING_DEFAULT SCTPCTL_BUFFER_SPLITTING_MIN
487 /* Initial congestion window in MTU */
488 #define SCTPCTL_INITIAL_CWND_DESC "Initial congestion window in MTUs"
489 #define SCTPCTL_INITIAL_CWND_MIN 0
490 #define SCTPCTL_INITIAL_CWND_MAX 0xffffffff
491 #define SCTPCTL_INITIAL_CWND_DEFAULT 3
493 /* rttvar smooth avg for bw calc */
494 #define SCTPCTL_RTTVAR_BW_DESC "Shift amount for bw smoothing on rtt calc"
495 #define SCTPCTL_RTTVAR_BW_MIN 0
496 #define SCTPCTL_RTTVAR_BW_MAX 32
497 #define SCTPCTL_RTTVAR_BW_DEFAULT 4
499 /* rttvar smooth avg for bw calc */
500 #define SCTPCTL_RTTVAR_RTT_DESC "Shift amount for rtt smoothing on rtt calc"
501 #define SCTPCTL_RTTVAR_RTT_MIN 0
502 #define SCTPCTL_RTTVAR_RTT_MAX 32
503 #define SCTPCTL_RTTVAR_RTT_DEFAULT 5
505 #define SCTPCTL_RTTVAR_EQRET_DESC "What to return when rtt and bw are unchanged"
506 #define SCTPCTL_RTTVAR_EQRET_MIN 0
507 #define SCTPCTL_RTTVAR_EQRET_MAX 1
508 #define SCTPCTL_RTTVAR_EQRET_DEFAULT 0
510 #define SCTPCTL_RTTVAR_STEADYS_DESC "How many the sames it takes to try step down of cwnd"
511 #define SCTPCTL_RTTVAR_STEADYS_MIN 0
512 #define SCTPCTL_RTTVAR_STEADYS_MAX 0xFFFF
513 #define SCTPCTL_RTTVAR_STEADYS_DEFAULT 20 /* 0 means disable feature */
515 #define SCTPCTL_RTTVAR_DCCCECN_DESC "Enable for RTCC CC datacenter ECN"
516 #define SCTPCTL_RTTVAR_DCCCECN_MIN 0
517 #define SCTPCTL_RTTVAR_DCCCECN_MAX 1
518 #define SCTPCTL_RTTVAR_DCCCECN_DEFAULT 1 /* 0 means disable feature */
520 #define SCTPCTL_BLACKHOLE_DESC "Enable SCTP blackholing"
521 #define SCTPCTL_BLACKHOLE_MIN 0
522 #define SCTPCTL_BLACKHOLE_MAX 2
523 #define SCTPCTL_BLACKHOLE_DEFAULT SCTPCTL_BLACKHOLE_MIN
525 #if defined(SCTP_DEBUG)
526 /* debug: Configure debug output */
527 #define SCTPCTL_DEBUG_DESC "Configure debug output"
528 #define SCTPCTL_DEBUG_MIN 0
529 #define SCTPCTL_DEBUG_MAX 0xFFFFFFFF
530 #define SCTPCTL_DEBUG_DEFAULT 0
534 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
535 #define SCTPCTL_OUTPUT_UNLOCKED_DESC "Unlock socket when sending packets down to IP."
536 #define SCTPCTL_OUTPUT_UNLOCKED_MIN 0
537 #define SCTPCTL_OUTPUT_UNLOCKED_MAX 1
538 #define SCTPCTL_OUTPUT_UNLOCKED_DEFAULT SCTPCTL_OUTPUT_UNLOCKED_MIN
542 #if defined(_KERNEL) || defined(__Userspace__)
543 #if defined(SYSCTL_DECL)
544 SYSCTL_DECL(_net_inet_sctp);
547 void sctp_init_sysctls(void);
550 #endif /* __sctp_sysctl_h__ */