sys/netinet/sctp_sysctl.h

   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
  41 struct 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)
 562 SYSCTL_DECL(_net_inet_sctp);
 563 #endif
 564
 565 void sctp_init_sysctls(void);
 566
 567 #endif                          /* _KERNEL */
 568 #endif                          /* __sctp_sysctl_h__ */