1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
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.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 *
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.
17 *
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.
21 *
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
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.
33 */
34
35#ifndef _NETINET_SCTP_SYSCTL_H_
36#define _NETINET_SCTP_SYSCTL_H_
37
38#include <netinet/sctp_os.h>
39#include <netinet/sctp_constants.h>
40
41struct sctp_sysctl {
42 uint32_t sctp_sendspace;
43 uint32_t sctp_recvspace;
44 uint32_t sctp_auto_asconf;
45 uint32_t sctp_multiple_asconfs;
46 uint32_t sctp_ecn_enable;
47 uint32_t sctp_pr_enable;
48 uint32_t sctp_auth_enable;
49 uint32_t sctp_asconf_enable;
50 uint32_t sctp_reconfig_enable;
51 uint32_t sctp_nrsack_enable;
52 uint32_t sctp_pktdrop_enable;
53 uint32_t sctp_fr_max_burst_default;
54 uint32_t sctp_peer_chunk_oh;
55 uint32_t sctp_max_burst_default;
56 uint32_t sctp_max_chunks_on_queue;
57 uint32_t sctp_hashtblsize;
58 uint32_t sctp_pcbtblsize;
59 uint32_t sctp_min_split_point;
60 uint32_t sctp_chunkscale;
61 uint32_t sctp_delayed_sack_time_default;
62 uint32_t sctp_sack_freq_default;
63 uint32_t sctp_system_free_resc_limit;
64 uint32_t sctp_asoc_free_resc_limit;
65 uint32_t sctp_heartbeat_interval_default;
66 uint32_t sctp_pmtu_raise_time_default;
67 uint32_t sctp_shutdown_guard_time_default;
68 uint32_t sctp_secret_lifetime_default;
69 uint32_t sctp_rto_max_default;
70 uint32_t sctp_rto_min_default;
71 uint32_t sctp_rto_initial_default;
72 uint32_t sctp_init_rto_max_default;
73 uint32_t sctp_valid_cookie_life_default;
74 uint32_t sctp_init_rtx_max_default;
75 uint32_t sctp_assoc_rtx_max_default;
76 uint32_t sctp_path_rtx_max_default;
77 uint32_t sctp_path_pf_threshold;
78 uint32_t sctp_add_more_threshold;
79 uint32_t sctp_nr_incoming_streams_default;
80 uint32_t sctp_nr_outgoing_streams_default;
81 uint32_t sctp_cmt_on_off;
82 uint32_t sctp_cmt_use_dac;
83 uint32_t sctp_use_cwnd_based_maxburst;
84 uint32_t sctp_nat_friendly;
85 uint32_t sctp_L2_abc_variable;
86 uint32_t sctp_mbuf_threshold_count;
87 uint32_t sctp_do_drain;
88 uint32_t sctp_hb_maxburst;
89 uint32_t sctp_abort_if_one_2_one_hits_limit;
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;
108#endif
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 uint32_t sctp_sendall_limit;
116 uint32_t sctp_diag_info_code;
117 uint32_t sctp_ootb_with_zero_cksum;
118#if defined(SCTP_DEBUG)
119 uint32_t sctp_debug_on;
120#endif
121};
122
123/*
124 * limits for the sysctl variables
125 */
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 */
131
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 */
137
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 1
143
144/* autoasconf: Enable SCTP Auto-ASCONF */
145#define SCTPCTL_MULTIPLEASCONFS_DESC "Enable SCTP Multiple-ASCONFs"
146#define SCTPCTL_MULTIPLEASCONFS_MIN 0
147#define SCTPCTL_MULTIPLEASCONFS_MAX 1
148#define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
149
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
155
156/* pr_enable: Enable PR-SCTP */
157#define SCTPCTL_PR_ENABLE_DESC "Enable PR-SCTP"
158#define SCTPCTL_PR_ENABLE_MIN 0
159#define SCTPCTL_PR_ENABLE_MAX 1
160#define SCTPCTL_PR_ENABLE_DEFAULT 1
161
162/* auth_enable: Enable SCTP AUTH function */
163#define SCTPCTL_AUTH_ENABLE_DESC "Enable SCTP AUTH function"
164#define SCTPCTL_AUTH_ENABLE_MIN 0
165#define SCTPCTL_AUTH_ENABLE_MAX 1
166#define SCTPCTL_AUTH_ENABLE_DEFAULT 1
167
168/* asconf_enable: Enable SCTP ASCONF */
169#define SCTPCTL_ASCONF_ENABLE_DESC "Enable SCTP ASCONF"
170#define SCTPCTL_ASCONF_ENABLE_MIN 0
171#define SCTPCTL_ASCONF_ENABLE_MAX 1
172#define SCTPCTL_ASCONF_ENABLE_DEFAULT 1
173
174/* reconfig_enable: Enable SCTP RE-CONFIG */
175#define SCTPCTL_RECONFIG_ENABLE_DESC "Enable SCTP RE-CONFIG"
176#define SCTPCTL_RECONFIG_ENABLE_MIN 0
177#define SCTPCTL_RECONFIG_ENABLE_MAX 1
178#define SCTPCTL_RECONFIG_ENABLE_DEFAULT 1
179
180/* nrsack_enable: Enable NR_SACK */
181#define SCTPCTL_NRSACK_ENABLE_DESC "Enable SCTP NR-SACK"
182#define SCTPCTL_NRSACK_ENABLE_MIN 0
183#define SCTPCTL_NRSACK_ENABLE_MAX 1
184#define SCTPCTL_NRSACK_ENABLE_DEFAULT 0
185
186/* pktdrop_enable: Enable SCTP Packet Drop Reports */
187#define SCTPCTL_PKTDROP_ENABLE_DESC "Enable SCTP PKTDROP"
188#define SCTPCTL_PKTDROP_ENABLE_MIN 0
189#define SCTPCTL_PKTDROP_ENABLE_MAX 1
190#define SCTPCTL_PKTDROP_ENABLE_DEFAULT 0
191
192/* loopback_nocsum: Enable NO Csum on packets sent on loopback */
193#define SCTPCTL_LOOPBACK_NOCSUM_DESC "Enable NO Csum on packets sent on loopback"
194#define SCTPCTL_LOOPBACK_NOCSUM_MIN 0
195#define SCTPCTL_LOOPBACK_NOCSUM_MAX 1
196#define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
197
198/* peer_chkoh: Amount to debit peers rwnd per chunk sent */
199#define SCTPCTL_PEER_CHKOH_DESC "Amount to debit peers rwnd per chunk sent"
200#define SCTPCTL_PEER_CHKOH_MIN 0
201#define SCTPCTL_PEER_CHKOH_MAX 0xFFFFFFFF
202#define SCTPCTL_PEER_CHKOH_DEFAULT 256
203
204/* maxburst: Default max burst for sctp endpoints */
205#define SCTPCTL_MAXBURST_DESC "Default max burst for sctp endpoints"
206#define SCTPCTL_MAXBURST_MIN 0
207#define SCTPCTL_MAXBURST_MAX 0xFFFFFFFF
208#define SCTPCTL_MAXBURST_DEFAULT SCTP_DEF_MAX_BURST
209
210/* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
211#define SCTPCTL_FRMAXBURST_DESC "Default max burst for SCTP endpoints when fast retransmitting"
212#define SCTPCTL_FRMAXBURST_MIN 0
213#define SCTPCTL_FRMAXBURST_MAX 0xFFFFFFFF
214#define SCTPCTL_FRMAXBURST_DEFAULT SCTP_DEF_FRMAX_BURST
215
216/* maxchunks: Default max chunks on queue per asoc */
217#define SCTPCTL_MAXCHUNKS_DESC "Default max chunks on queue per asoc"
218#define SCTPCTL_MAXCHUNKS_MIN 0
219#define SCTPCTL_MAXCHUNKS_MAX 0xFFFFFFFF
220#define SCTPCTL_MAXCHUNKS_DEFAULT SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
221
222/* tcbhashsize: Tunable for Hash table sizes */
223#define SCTPCTL_TCBHASHSIZE_DESC "Tunable for TCB hash table sizes"
224#define SCTPCTL_TCBHASHSIZE_MIN 1
225#define SCTPCTL_TCBHASHSIZE_MAX 0xFFFFFFFF
226#define SCTPCTL_TCBHASHSIZE_DEFAULT SCTP_TCBHASHSIZE
227
228/* pcbhashsize: Tunable for PCB Hash table sizes */
229#define SCTPCTL_PCBHASHSIZE_DESC "Tunable for PCB hash table sizes"
230#define SCTPCTL_PCBHASHSIZE_MIN 1
231#define SCTPCTL_PCBHASHSIZE_MAX 0xFFFFFFFF
232#define SCTPCTL_PCBHASHSIZE_DEFAULT SCTP_PCBHASHSIZE
233
234/* min_split_point: Minimum size when splitting a chunk */
235#define SCTPCTL_MIN_SPLIT_POINT_DESC "Minimum size when splitting a chunk"
236#define SCTPCTL_MIN_SPLIT_POINT_MIN 0
237#define SCTPCTL_MIN_SPLIT_POINT_MAX 0xFFFFFFFF
238#define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
239
240/* chunkscale: Tunable for Scaling of number of chunks and messages */
241#define SCTPCTL_CHUNKSCALE_DESC "Tunable for scaling of number of chunks and messages"
242#define SCTPCTL_CHUNKSCALE_MIN 1
243#define SCTPCTL_CHUNKSCALE_MAX 0xFFFFFFFF
244#define SCTPCTL_CHUNKSCALE_DEFAULT SCTP_CHUNKQUEUE_SCALE
245
246/* delayed_sack_time: Default delayed SACK timer in ms */
247#define SCTPCTL_DELAYED_SACK_TIME_DESC "Default delayed SACK timer in ms"
248#define SCTPCTL_DELAYED_SACK_TIME_MIN 0
249#define SCTPCTL_DELAYED_SACK_TIME_MAX 0xFFFFFFFF
250#define SCTPCTL_DELAYED_SACK_TIME_DEFAULT SCTP_RECV_MSEC
251
252/* sack_freq: Default SACK frequency */
253#define SCTPCTL_SACK_FREQ_DESC "Default SACK frequency"
254#define SCTPCTL_SACK_FREQ_MIN 0
255#define SCTPCTL_SACK_FREQ_MAX 0xFFFFFFFF
256#define SCTPCTL_SACK_FREQ_DEFAULT SCTP_DEFAULT_SACK_FREQ
257
258/* sys_resource: Max number of cached resources in the system */
259#define SCTPCTL_SYS_RESOURCE_DESC "Max number of cached resources in the system"
260#define SCTPCTL_SYS_RESOURCE_MIN 0
261#define SCTPCTL_SYS_RESOURCE_MAX 0xFFFFFFFF
262#define SCTPCTL_SYS_RESOURCE_DEFAULT SCTP_DEF_SYSTEM_RESC_LIMIT
263
264/* asoc_resource: Max number of cached resources in an asoc */
265#define SCTPCTL_ASOC_RESOURCE_DESC "Max number of cached resources in an asoc"
266#define SCTPCTL_ASOC_RESOURCE_MIN 0
267#define SCTPCTL_ASOC_RESOURCE_MAX 0xFFFFFFFF
268#define SCTPCTL_ASOC_RESOURCE_DEFAULT SCTP_DEF_ASOC_RESC_LIMIT
269
270/* heartbeat_interval: Default heartbeat interval in ms */
271#define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
272#define SCTPCTL_HEARTBEAT_INTERVAL_MIN 0
273#define SCTPCTL_HEARTBEAT_INTERVAL_MAX 0xFFFFFFFF
274#define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT SCTP_HB_DEFAULT_MSEC
275
276/* pmtu_raise_time: Default PMTU raise timer in seconds */
277#define SCTPCTL_PMTU_RAISE_TIME_DESC "Default PMTU raise timer in seconds"
278#define SCTPCTL_PMTU_RAISE_TIME_MIN 0
279#define SCTPCTL_PMTU_RAISE_TIME_MAX 0xFFFFFFFF
280#define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
281
282/* shutdown_guard_time: Default shutdown guard timer in seconds */
283#define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
284#define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN 0
285#define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX 0xFFFFFFFF
286#define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT 0
287
288/* secret_lifetime: Default secret lifetime in seconds */
289#define SCTPCTL_SECRET_LIFETIME_DESC "Default secret lifetime in seconds"
290#define SCTPCTL_SECRET_LIFETIME_MIN 0
291#define SCTPCTL_SECRET_LIFETIME_MAX 0xFFFFFFFF
292#define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
293
294/* rto_max: Default maximum retransmission timeout in ms */
295#define SCTPCTL_RTO_MAX_DESC "Default maximum retransmission timeout in ms"
296#define SCTPCTL_RTO_MAX_MIN 0
297#define SCTPCTL_RTO_MAX_MAX 0xFFFFFFFF
298#define SCTPCTL_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
299
300/* rto_min: Default minimum retransmission timeout in ms */
301#define SCTPCTL_RTO_MIN_DESC "Default minimum retransmission timeout in ms"
302#define SCTPCTL_RTO_MIN_MIN 0
303#define SCTPCTL_RTO_MIN_MAX 0xFFFFFFFF
304#define SCTPCTL_RTO_MIN_DEFAULT SCTP_RTO_LOWER_BOUND
305
306/* rto_initial: Default initial retransmission timeout in ms */
307#define SCTPCTL_RTO_INITIAL_DESC "Default initial retransmission timeout in ms"
308#define SCTPCTL_RTO_INITIAL_MIN 0
309#define SCTPCTL_RTO_INITIAL_MAX 0xFFFFFFFF
310#define SCTPCTL_RTO_INITIAL_DEFAULT SCTP_RTO_INITIAL
311
312/* init_rto_max: Default maximum retransmission timeout during association setup in ms */
313#define SCTPCTL_INIT_RTO_MAX_DESC "Default maximum retransmission timeout during association setup in ms"
314#define SCTPCTL_INIT_RTO_MAX_MIN 0
315#define SCTPCTL_INIT_RTO_MAX_MAX 0xFFFFFFFF
316#define SCTPCTL_INIT_RTO_MAX_DEFAULT SCTP_RTO_UPPER_BOUND
317
318/* valid_cookie_life: Default cookie lifetime in ms */
319#define SCTPCTL_VALID_COOKIE_LIFE_DESC "Default cookie lifetime in ms"
320#define SCTPCTL_VALID_COOKIE_LIFE_MIN SCTP_MIN_COOKIE_LIFE
321#define SCTPCTL_VALID_COOKIE_LIFE_MAX SCTP_MAX_COOKIE_LIFE
322#define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT SCTP_DEFAULT_COOKIE_LIFE
323
324/* init_rtx_max: Default maximum number of retransmission for INIT chunks */
325#define SCTPCTL_INIT_RTX_MAX_DESC "Default maximum number of retransmissions for INIT chunks"
326#define SCTPCTL_INIT_RTX_MAX_MIN 0
327#define SCTPCTL_INIT_RTX_MAX_MAX 0xFFFFFFFF
328#define SCTPCTL_INIT_RTX_MAX_DEFAULT SCTP_DEF_MAX_INIT
329
330/* assoc_rtx_max: Default maximum number of retransmissions per association */
331#define SCTPCTL_ASSOC_RTX_MAX_DESC "Default maximum number of retransmissions per association"
332#define SCTPCTL_ASSOC_RTX_MAX_MIN 0
333#define SCTPCTL_ASSOC_RTX_MAX_MAX 0xFFFFFFFF
334#define SCTPCTL_ASSOC_RTX_MAX_DEFAULT SCTP_DEF_MAX_SEND
335
336/* path_rtx_max: Default maximum of retransmissions per path */
337#define SCTPCTL_PATH_RTX_MAX_DESC "Default maximum of retransmissions per path"
338#define SCTPCTL_PATH_RTX_MAX_MIN 0
339#define SCTPCTL_PATH_RTX_MAX_MAX 0xFFFFFFFF
340#define SCTPCTL_PATH_RTX_MAX_DEFAULT SCTP_DEF_MAX_PATH_RTX
341
342/* path_pf_threshold: threshold for considering the path potentially failed */
343#define SCTPCTL_PATH_PF_THRESHOLD_DESC "Default potentially failed threshold"
344#define SCTPCTL_PATH_PF_THRESHOLD_MIN 0
345#define SCTPCTL_PATH_PF_THRESHOLD_MAX 0xFFFF
346#define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT SCTPCTL_PATH_PF_THRESHOLD_MAX
347
348/* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
349#define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
350#define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN 0
351#define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX 0xFFFFFFFF
352#define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
353
354/* incoming_streams: Default number of incoming streams */
355#define SCTPCTL_INCOMING_STREAMS_DESC "Default number of incoming streams"
356#define SCTPCTL_INCOMING_STREAMS_MIN 1
357#define SCTPCTL_INCOMING_STREAMS_MAX 65535
358#define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
359
360/* outgoing_streams: Default number of outgoing streams */
361#define SCTPCTL_OUTGOING_STREAMS_DESC "Default number of outgoing streams"
362#define SCTPCTL_OUTGOING_STREAMS_MIN 1
363#define SCTPCTL_OUTGOING_STREAMS_MAX 65535
364#define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
365
366/* cmt_on_off: CMT on/off flag */
367#define SCTPCTL_CMT_ON_OFF_DESC "CMT settings"
368#define SCTPCTL_CMT_ON_OFF_MIN SCTP_CMT_OFF
369#define SCTPCTL_CMT_ON_OFF_MAX SCTP_CMT_MAX
370#define SCTPCTL_CMT_ON_OFF_DEFAULT SCTP_CMT_OFF
371
372/* cmt_use_dac: CMT DAC on/off flag */
373#define SCTPCTL_CMT_USE_DAC_DESC "CMT DAC on/off flag"
374#define SCTPCTL_CMT_USE_DAC_MIN 0
375#define SCTPCTL_CMT_USE_DAC_MAX 1
376#define SCTPCTL_CMT_USE_DAC_DEFAULT 0
377
378/* cwnd_maxburst: Use a CWND adjusting to implement maxburst */
379#define SCTPCTL_CWND_MAXBURST_DESC "Adjust congestion control window to limit maximum burst when sending"
380#define SCTPCTL_CWND_MAXBURST_MIN 0
381#define SCTPCTL_CWND_MAXBURST_MAX 1
382#define SCTPCTL_CWND_MAXBURST_DEFAULT 1
383
384/* nat_friendly: SCTP NAT friendly operation */
385#define SCTPCTL_NAT_FRIENDLY_DESC "SCTP NAT friendly operation"
386#define SCTPCTL_NAT_FRIENDLY_MIN 0
387#define SCTPCTL_NAT_FRIENDLY_MAX 1
388#define SCTPCTL_NAT_FRIENDLY_DEFAULT 1
389
390/* abc_l_var: SCTP ABC max increase per SACK (L) */
391#define SCTPCTL_ABC_L_VAR_DESC "SCTP ABC max increase per SACK (L)"
392#define SCTPCTL_ABC_L_VAR_MIN 0
393#define SCTPCTL_ABC_L_VAR_MAX 0xFFFFFFFF
394#define SCTPCTL_ABC_L_VAR_DEFAULT 2
395
396/* max_chained_mbufs: Default max number of small mbufs on a chain */
397#define SCTPCTL_MAX_CHAINED_MBUFS_DESC "Default max number of small mbufs on a chain"
398#define SCTPCTL_MAX_CHAINED_MBUFS_MIN 0
399#define SCTPCTL_MAX_CHAINED_MBUFS_MAX 0xFFFFFFFF
400#define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT SCTP_DEFAULT_MBUFS_IN_CHAIN
401
402/* do_sctp_drain: Should SCTP respond to the drain calls */
403#define SCTPCTL_DO_SCTP_DRAIN_DESC "Should SCTP respond to the drain calls"
404#define SCTPCTL_DO_SCTP_DRAIN_MIN 0
405#define SCTPCTL_DO_SCTP_DRAIN_MAX 1
406#define SCTPCTL_DO_SCTP_DRAIN_DEFAULT 1
407
408/* hb_max_burst: Confirmation Heartbeat max burst? */
409#define SCTPCTL_HB_MAX_BURST_DESC "Confirmation Heartbeat max burst"
410#define SCTPCTL_HB_MAX_BURST_MIN 1
411#define SCTPCTL_HB_MAX_BURST_MAX 0xFFFFFFFF
412#define SCTPCTL_HB_MAX_BURST_DEFAULT SCTP_DEF_HBMAX_BURST
413
414/* abort_at_limit: When one-2-one hits qlimit abort */
415#define SCTPCTL_ABORT_AT_LIMIT_DESC "Abort when one-to-one hits qlimit"
416#define SCTPCTL_ABORT_AT_LIMIT_MIN 0
417#define SCTPCTL_ABORT_AT_LIMIT_MAX 1
418#define SCTPCTL_ABORT_AT_LIMIT_DEFAULT 0
419
420/* min_residual: min residual in a data fragment leftover */
421#define SCTPCTL_MIN_RESIDUAL_DESC "Minimum residual data chunk in second part of split"
422#define SCTPCTL_MIN_RESIDUAL_MIN 20
423#define SCTPCTL_MIN_RESIDUAL_MAX 65535
424#define SCTPCTL_MIN_RESIDUAL_DEFAULT 1452
425
426/* max_retran_chunk: max chunk retransmissions */
427#define SCTPCTL_MAX_RETRAN_CHUNK_DESC "Maximum times an unlucky chunk can be retransmitted before assoc abort"
428#define SCTPCTL_MAX_RETRAN_CHUNK_MIN 0
429#define SCTPCTL_MAX_RETRAN_CHUNK_MAX 65535
430#define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT 30
431
432/* sctp_logging: This gives us logging when the options are enabled */
433#define SCTPCTL_LOGGING_LEVEL_DESC "Ltrace/KTR trace logging level"
434#define SCTPCTL_LOGGING_LEVEL_MIN 0
435#define SCTPCTL_LOGGING_LEVEL_MAX 0xffffffff
436#define SCTPCTL_LOGGING_LEVEL_DEFAULT 0
437
438/* JRS - default congestion control module sysctl */
439#define SCTPCTL_DEFAULT_CC_MODULE_DESC "Default congestion control module"
440#define SCTPCTL_DEFAULT_CC_MODULE_MIN 0
441#define SCTPCTL_DEFAULT_CC_MODULE_MAX 2
442#define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT 0
443
444/* RS - default stream scheduling module sysctl */
445#define SCTPCTL_DEFAULT_SS_MODULE_DESC "Default stream scheduling module"
446#define SCTPCTL_DEFAULT_SS_MODULE_MIN 0
447#define SCTPCTL_DEFAULT_SS_MODULE_MAX 5
448#define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT 0
449
450/* RRS - default fragment interleave */
451#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC "Default fragment interleave level"
452#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN 0
453#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX 2
454#define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
455
456/* mobility_base: Enable SCTP mobility support */
457#define SCTPCTL_MOBILITY_BASE_DESC "Enable SCTP base mobility"
458#define SCTPCTL_MOBILITY_BASE_MIN 0
459#define SCTPCTL_MOBILITY_BASE_MAX 1
460#define SCTPCTL_MOBILITY_BASE_DEFAULT 0
461
462/* mobility_fasthandoff: Enable SCTP fast handoff support */
463#define SCTPCTL_MOBILITY_FASTHANDOFF_DESC "Enable SCTP fast handoff"
464#define SCTPCTL_MOBILITY_FASTHANDOFF_MIN 0
465#define SCTPCTL_MOBILITY_FASTHANDOFF_MAX 1
466#define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT 0
467
468/* Enable SCTP/UDP tunneling port */
469#define SCTPCTL_UDP_TUNNELING_PORT_DESC "Set the SCTP/UDP tunneling port"
470#define SCTPCTL_UDP_TUNNELING_PORT_MIN 0
471#define SCTPCTL_UDP_TUNNELING_PORT_MAX 65535
472#define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT 0
473
474/* Enable sending of the SACK-IMMEDIATELY bit */
475#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC "Enable sending of the SACK-IMMEDIATELY-bit"
476#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN 0
477#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX 1
478#define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX
479
480/* Enable sending of the NAT-FRIENDLY message */
481#define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs"
482#define SCTPCTL_NAT_FRIENDLY_INITS_MIN 0
483#define SCTPCTL_NAT_FRIENDLY_INITS_MAX 1
484#define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT SCTPCTL_NAT_FRIENDLY_INITS_MIN
485
486/* Vtag time wait in seconds */
487#define SCTPCTL_TIME_WAIT_DESC "Vtag time wait time in seconds, 0 disables it"
488#define SCTPCTL_TIME_WAIT_MIN 0
489#define SCTPCTL_TIME_WAIT_MAX 0xffffffff
490#define SCTPCTL_TIME_WAIT_DEFAULT SCTP_TIME_WAIT
491
492/* Enable Send/Receive buffer splitting */
493#define SCTPCTL_BUFFER_SPLITTING_DESC "Enable send/receive buffer splitting"
494#define SCTPCTL_BUFFER_SPLITTING_MIN 0
495#define SCTPCTL_BUFFER_SPLITTING_MAX 0x3
496#define SCTPCTL_BUFFER_SPLITTING_DEFAULT SCTPCTL_BUFFER_SPLITTING_MIN
497
498/* Initial congestion window in MTUs */
499#define SCTPCTL_INITIAL_CWND_DESC "Defines the initial congestion window size in MTUs"
500#define SCTPCTL_INITIAL_CWND_MIN 0
501#define SCTPCTL_INITIAL_CWND_MAX 0xffffffff
502#define SCTPCTL_INITIAL_CWND_DEFAULT 3
503
504/* rttvar smooth avg for bw calc */
505#define SCTPCTL_RTTVAR_BW_DESC "Shift amount DCCC uses for bw smoothing on rtt calc"
506#define SCTPCTL_RTTVAR_BW_MIN 0
507#define SCTPCTL_RTTVAR_BW_MAX 32
508#define SCTPCTL_RTTVAR_BW_DEFAULT 4
509
510/* rttvar smooth avg for bw calc */
511#define SCTPCTL_RTTVAR_RTT_DESC "Shift amount DCCC uses for rtt smoothing on rtt calc"
512#define SCTPCTL_RTTVAR_RTT_MIN 0
513#define SCTPCTL_RTTVAR_RTT_MAX 32
514#define SCTPCTL_RTTVAR_RTT_DEFAULT 5
515
516#define SCTPCTL_RTTVAR_EQRET_DESC "Whether DCCC increases cwnd when the rtt and bw are unchanged"
517#define SCTPCTL_RTTVAR_EQRET_MIN 0
518#define SCTPCTL_RTTVAR_EQRET_MAX 1
519#define SCTPCTL_RTTVAR_EQRET_DEFAULT 0
520
521#define SCTPCTL_RTTVAR_STEADYS_DESC "Number of identical bw measurements DCCC takes to try step down of cwnd"
522#define SCTPCTL_RTTVAR_STEADYS_MIN 0
523#define SCTPCTL_RTTVAR_STEADYS_MAX 0xFFFF
524#define SCTPCTL_RTTVAR_STEADYS_DEFAULT 20 /* 0 means disable feature */
525
526#define SCTPCTL_RTTVAR_DCCCECN_DESC "Enable ECN for DCCC."
527#define SCTPCTL_RTTVAR_DCCCECN_MIN 0
528#define SCTPCTL_RTTVAR_DCCCECN_MAX 1
529#define SCTPCTL_RTTVAR_DCCCECN_DEFAULT 1 /* 0 means disable feature */
530
531#define SCTPCTL_BLACKHOLE_DESC "Enable SCTP blackholing, see blackhole(4) for more details"
532#define SCTPCTL_BLACKHOLE_MIN 0
533#define SCTPCTL_BLACKHOLE_MAX 2
534#define SCTPCTL_BLACKHOLE_DEFAULT SCTPCTL_BLACKHOLE_MIN
535
536/* sendall_limit: Maximum message with SCTP_SENDALL */
537#define SCTPCTL_SENDALL_LIMIT_DESC "Maximum size of a message send with SCTP_SENDALL"
538#define SCTPCTL_SENDALL_LIMIT_MIN 0
539#define SCTPCTL_SENDALL_LIMIT_MAX 0xFFFFFFFF
540#define SCTPCTL_SENDALL_LIMIT_DEFAULT 1432
541
542#define SCTPCTL_DIAG_INFO_CODE_DESC "Diagnostic information error cause code"
543#define SCTPCTL_DIAG_INFO_CODE_MIN 0
544#define SCTPCTL_DIAG_INFO_CODE_MAX 65535
545#define SCTPCTL_DIAG_INFO_CODE_DEFAULT 0
546
547#define SCTPCTL_OOTB_WITH_ZERO_CKSUM_DESC "Accept OOTB packets with zero checksum"
548#define SCTPCTL_OOTB_WITH_ZERO_CKSUM_MIN 0
549#define SCTPCTL_OOTB_WITH_ZERO_CKSUM_MAX 1
550#define SCTPCTL_OOTB_WITH_ZERO_CKSUM_DEFAULT 0
551
552#if defined(SCTP_DEBUG)
553/* debug: Configure debug output */
554#define SCTPCTL_DEBUG_DESC "Configure debug output"
555#define SCTPCTL_DEBUG_MIN 0
556#define SCTPCTL_DEBUG_MAX 0xFFFFFFFF
557#define SCTPCTL_DEBUG_DEFAULT 0
558#endif
559
560#if defined(_KERNEL) || defined(__Userspace__)
561#if defined(SYSCTL_DECL)
562SYSCTL_DECL(_net_inet_sctp);
563#endif
564
565void sctp_init_sysctls(void);
566
567#endif /* _KERNEL */
568#endif /* __sctp_sysctl_h__ */