The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_sysctl.h

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    1 /*-
    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.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   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.
   15  *
   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.
   19  *
   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
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   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.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/11.0/sys/netinet/sctp_sysctl.h 299543 2016-05-12 16:34:59Z tuexen $");
   35 
   36 #ifndef _NETINET_SCTP_SYSCTL_H_
   37 #define _NETINET_SCTP_SYSCTL_H_
   38 
   39 #include <netinet/sctp_os.h>
   40 #include <netinet/sctp_constants.h>
   41 
   42 struct sctp_sysctl {
   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_pr_enable;
   49         uint32_t sctp_auth_enable;
   50         uint32_t sctp_asconf_enable;
   51         uint32_t sctp_reconfig_enable;
   52         uint32_t sctp_nrsack_enable;
   53         uint32_t sctp_pktdrop_enable;
   54         uint32_t sctp_fr_max_burst_default;
   55         uint32_t sctp_peer_chunk_oh;
   56         uint32_t sctp_max_burst_default;
   57         uint32_t sctp_max_chunks_on_queue;
   58         uint32_t sctp_hashtblsize;
   59         uint32_t sctp_pcbtblsize;
   60         uint32_t sctp_min_split_point;
   61         uint32_t sctp_chunkscale;
   62         uint32_t sctp_delayed_sack_time_default;
   63         uint32_t sctp_sack_freq_default;
   64         uint32_t sctp_system_free_resc_limit;
   65         uint32_t sctp_asoc_free_resc_limit;
   66         uint32_t sctp_heartbeat_interval_default;
   67         uint32_t sctp_pmtu_raise_time_default;
   68         uint32_t sctp_shutdown_guard_time_default;
   69         uint32_t sctp_secret_lifetime_default;
   70         uint32_t sctp_rto_max_default;
   71         uint32_t sctp_rto_min_default;
   72         uint32_t sctp_rto_initial_default;
   73         uint32_t sctp_init_rto_max_default;
   74         uint32_t sctp_valid_cookie_life_default;
   75         uint32_t sctp_init_rtx_max_default;
   76         uint32_t sctp_assoc_rtx_max_default;
   77         uint32_t sctp_path_rtx_max_default;
   78         uint32_t sctp_path_pf_threshold;
   79         uint32_t sctp_add_more_threshold;
   80         uint32_t sctp_nr_incoming_streams_default;
   81         uint32_t sctp_nr_outgoing_streams_default;
   82         uint32_t sctp_cmt_on_off;
   83         uint32_t sctp_cmt_use_dac;
   84         uint32_t sctp_use_cwnd_based_maxburst;
   85         uint32_t sctp_nat_friendly;
   86         uint32_t sctp_L2_abc_variable;
   87         uint32_t sctp_mbuf_threshold_count;
   88         uint32_t sctp_do_drain;
   89         uint32_t sctp_hb_maxburst;
   90         uint32_t sctp_abort_if_one_2_one_hits_limit;
   91         uint32_t sctp_min_residual;
   92         uint32_t sctp_max_retran_chunk;
   93         uint32_t sctp_logging_level;
   94         /* JRS - Variable for default congestion control module */
   95         uint32_t sctp_default_cc_module;
   96         /* RS - Variable for default stream scheduling module */
   97         uint32_t sctp_default_ss_module;
   98         uint32_t sctp_default_frag_interleave;
   99         uint32_t sctp_mobility_base;
  100         uint32_t sctp_mobility_fasthandoff;
  101         uint32_t sctp_inits_include_nat_friendly;
  102         uint32_t sctp_rttvar_bw;
  103         uint32_t sctp_rttvar_rtt;
  104         uint32_t sctp_rttvar_eqret;
  105         uint32_t sctp_steady_step;
  106         uint32_t sctp_use_dccc_ecn;
  107         uint32_t sctp_diag_info_code;
  108 #if defined(SCTP_LOCAL_TRACE_BUF)
  109         struct sctp_log sctp_log;
  110 #endif
  111         uint32_t sctp_udp_tunneling_port;
  112         uint32_t sctp_enable_sack_immediately;
  113         uint32_t sctp_vtag_time_wait;
  114         uint32_t sctp_buffer_splitting;
  115         uint32_t sctp_initial_cwnd;
  116         uint32_t sctp_blackhole;
  117 #if defined(SCTP_DEBUG)
  118         uint32_t sctp_debug_on;
  119 #endif
  120 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  121         uint32_t sctp_output_unlocked;
  122 #endif
  123 };
  124 
  125 /*
  126  * limits for the sysctl variables
  127  */
  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 */
  133 
  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 */
  139 
  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
  145 
  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
  151 
  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
  157 
  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
  163 
  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
  169 
  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
  175 
  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
  181 
  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
  187 
  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
  193 
  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
  199 
  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
  205 
  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
  211 
  212 /* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
  213 #define SCTPCTL_FRMAXBURST_DESC         "Default fr max burst for sctp endpoints"
  214 #define SCTPCTL_FRMAXBURST_MIN          0
  215 #define SCTPCTL_FRMAXBURST_MAX          0xFFFFFFFF
  216 #define SCTPCTL_FRMAXBURST_DEFAULT      SCTP_DEF_FRMAX_BURST
  217 
  218 
  219 /* maxchunks: Default max chunks on queue per asoc */
  220 #define SCTPCTL_MAXCHUNKS_DESC          "Default max chunks on queue per asoc"
  221 #define SCTPCTL_MAXCHUNKS_MIN           0
  222 #define SCTPCTL_MAXCHUNKS_MAX           0xFFFFFFFF
  223 #define SCTPCTL_MAXCHUNKS_DEFAULT       SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
  224 
  225 /* tcbhashsize: Tunable for Hash table sizes */
  226 #define SCTPCTL_TCBHASHSIZE_DESC        "Tunable for TCB hash table sizes"
  227 #define SCTPCTL_TCBHASHSIZE_MIN         1
  228 #define SCTPCTL_TCBHASHSIZE_MAX         0xFFFFFFFF
  229 #define SCTPCTL_TCBHASHSIZE_DEFAULT     SCTP_TCBHASHSIZE
  230 
  231 /* pcbhashsize: Tunable for PCB Hash table sizes */
  232 #define SCTPCTL_PCBHASHSIZE_DESC        "Tunable for PCB hash table sizes"
  233 #define SCTPCTL_PCBHASHSIZE_MIN         1
  234 #define SCTPCTL_PCBHASHSIZE_MAX         0xFFFFFFFF
  235 #define SCTPCTL_PCBHASHSIZE_DEFAULT     SCTP_PCBHASHSIZE
  236 
  237 /* min_split_point: Minimum size when splitting a chunk */
  238 #define SCTPCTL_MIN_SPLIT_POINT_DESC    "Minimum size when splitting a chunk"
  239 #define SCTPCTL_MIN_SPLIT_POINT_MIN     0
  240 #define SCTPCTL_MIN_SPLIT_POINT_MAX     0xFFFFFFFF
  241 #define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
  242 
  243 /* chunkscale: Tunable for Scaling of number of chunks and messages */
  244 #define SCTPCTL_CHUNKSCALE_DESC         "Tunable for Scaling of number of chunks and messages"
  245 #define SCTPCTL_CHUNKSCALE_MIN          1
  246 #define SCTPCTL_CHUNKSCALE_MAX          0xFFFFFFFF
  247 #define SCTPCTL_CHUNKSCALE_DEFAULT      SCTP_CHUNKQUEUE_SCALE
  248 
  249 /* delayed_sack_time: Default delayed SACK timer in ms */
  250 #define SCTPCTL_DELAYED_SACK_TIME_DESC  "Default delayed SACK timer in ms"
  251 #define SCTPCTL_DELAYED_SACK_TIME_MIN   0
  252 #define SCTPCTL_DELAYED_SACK_TIME_MAX   0xFFFFFFFF
  253 #define SCTPCTL_DELAYED_SACK_TIME_DEFAULT       SCTP_RECV_MSEC
  254 
  255 /* sack_freq: Default SACK frequency */
  256 #define SCTPCTL_SACK_FREQ_DESC          "Default SACK frequency"
  257 #define SCTPCTL_SACK_FREQ_MIN           0
  258 #define SCTPCTL_SACK_FREQ_MAX           0xFFFFFFFF
  259 #define SCTPCTL_SACK_FREQ_DEFAULT       SCTP_DEFAULT_SACK_FREQ
  260 
  261 /* sys_resource: Max number of cached resources in the system */
  262 #define SCTPCTL_SYS_RESOURCE_DESC       "Max number of cached resources in the system"
  263 #define SCTPCTL_SYS_RESOURCE_MIN        0
  264 #define SCTPCTL_SYS_RESOURCE_MAX        0xFFFFFFFF
  265 #define SCTPCTL_SYS_RESOURCE_DEFAULT    SCTP_DEF_SYSTEM_RESC_LIMIT
  266 
  267 /* asoc_resource: Max number of cached resources in an asoc */
  268 #define SCTPCTL_ASOC_RESOURCE_DESC      "Max number of cached resources in an asoc"
  269 #define SCTPCTL_ASOC_RESOURCE_MIN       0
  270 #define SCTPCTL_ASOC_RESOURCE_MAX       0xFFFFFFFF
  271 #define SCTPCTL_ASOC_RESOURCE_DEFAULT   SCTP_DEF_ASOC_RESC_LIMIT
  272 
  273 /* heartbeat_interval: Default heartbeat interval in ms */
  274 #define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
  275 #define SCTPCTL_HEARTBEAT_INTERVAL_MIN  0
  276 #define SCTPCTL_HEARTBEAT_INTERVAL_MAX  0xFFFFFFFF
  277 #define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT      SCTP_HB_DEFAULT_MSEC
  278 
  279 /* pmtu_raise_time: Default PMTU raise timer in seconds */
  280 #define SCTPCTL_PMTU_RAISE_TIME_DESC    "Default PMTU raise timer in seconds"
  281 #define SCTPCTL_PMTU_RAISE_TIME_MIN     0
  282 #define SCTPCTL_PMTU_RAISE_TIME_MAX     0xFFFFFFFF
  283 #define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
  284 
  285 /* shutdown_guard_time: Default shutdown guard timer in seconds */
  286 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC        "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
  287 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN         0
  288 #define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX         0xFFFFFFFF
  289 #define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT     0
  290 
  291 /* secret_lifetime: Default secret lifetime in seconds */
  292 #define SCTPCTL_SECRET_LIFETIME_DESC    "Default secret lifetime in seconds"
  293 #define SCTPCTL_SECRET_LIFETIME_MIN     0
  294 #define SCTPCTL_SECRET_LIFETIME_MAX     0xFFFFFFFF
  295 #define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
  296 
  297 /* rto_max: Default maximum retransmission timeout in ms */
  298 #define SCTPCTL_RTO_MAX_DESC            "Default maximum retransmission timeout in ms"
  299 #define SCTPCTL_RTO_MAX_MIN             0
  300 #define SCTPCTL_RTO_MAX_MAX             0xFFFFFFFF
  301 #define SCTPCTL_RTO_MAX_DEFAULT         SCTP_RTO_UPPER_BOUND
  302 
  303 /* rto_min: Default minimum retransmission timeout in ms */
  304 #define SCTPCTL_RTO_MIN_DESC            "Default minimum retransmission timeout in ms"
  305 #define SCTPCTL_RTO_MIN_MIN             0
  306 #define SCTPCTL_RTO_MIN_MAX             0xFFFFFFFF
  307 #define SCTPCTL_RTO_MIN_DEFAULT         SCTP_RTO_LOWER_BOUND
  308 
  309 /* rto_initial: Default initial retransmission timeout in ms */
  310 #define SCTPCTL_RTO_INITIAL_DESC        "Default initial retransmission timeout in ms"
  311 #define SCTPCTL_RTO_INITIAL_MIN         0
  312 #define SCTPCTL_RTO_INITIAL_MAX         0xFFFFFFFF
  313 #define SCTPCTL_RTO_INITIAL_DEFAULT     SCTP_RTO_INITIAL
  314 
  315 /* init_rto_max: Default maximum retransmission timeout during association setup in ms */
  316 #define SCTPCTL_INIT_RTO_MAX_DESC       "Default maximum retransmission timeout during association setup in ms"
  317 #define SCTPCTL_INIT_RTO_MAX_MIN        0
  318 #define SCTPCTL_INIT_RTO_MAX_MAX        0xFFFFFFFF
  319 #define SCTPCTL_INIT_RTO_MAX_DEFAULT    SCTP_RTO_UPPER_BOUND
  320 
  321 /* valid_cookie_life: Default cookie lifetime in sec */
  322 #define SCTPCTL_VALID_COOKIE_LIFE_DESC  "Default cookie lifetime in seconds"
  323 #define SCTPCTL_VALID_COOKIE_LIFE_MIN   0
  324 #define SCTPCTL_VALID_COOKIE_LIFE_MAX   0xFFFFFFFF
  325 #define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT       SCTP_DEFAULT_COOKIE_LIFE
  326 
  327 /* init_rtx_max: Default maximum number of retransmission for INIT chunks */
  328 #define SCTPCTL_INIT_RTX_MAX_DESC       "Default maximum number of retransmission for INIT chunks"
  329 #define SCTPCTL_INIT_RTX_MAX_MIN        0
  330 #define SCTPCTL_INIT_RTX_MAX_MAX        0xFFFFFFFF
  331 #define SCTPCTL_INIT_RTX_MAX_DEFAULT    SCTP_DEF_MAX_INIT
  332 
  333 /* assoc_rtx_max: Default maximum number of retransmissions per association */
  334 #define SCTPCTL_ASSOC_RTX_MAX_DESC      "Default maximum number of retransmissions per association"
  335 #define SCTPCTL_ASSOC_RTX_MAX_MIN       0
  336 #define SCTPCTL_ASSOC_RTX_MAX_MAX       0xFFFFFFFF
  337 #define SCTPCTL_ASSOC_RTX_MAX_DEFAULT   SCTP_DEF_MAX_SEND
  338 
  339 /* path_rtx_max: Default maximum of retransmissions per path */
  340 #define SCTPCTL_PATH_RTX_MAX_DESC       "Default maximum of retransmissions per path"
  341 #define SCTPCTL_PATH_RTX_MAX_MIN        0
  342 #define SCTPCTL_PATH_RTX_MAX_MAX        0xFFFFFFFF
  343 #define SCTPCTL_PATH_RTX_MAX_DEFAULT    SCTP_DEF_MAX_PATH_RTX
  344 
  345 /* path_pf_threshold: threshold for considering the path potentially failed */
  346 #define SCTPCTL_PATH_PF_THRESHOLD_DESC          "Default potentially failed threshold"
  347 #define SCTPCTL_PATH_PF_THRESHOLD_MIN           0
  348 #define SCTPCTL_PATH_PF_THRESHOLD_MAX           0xFFFF
  349 #define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT       SCTPCTL_PATH_PF_THRESHOLD_MAX
  350 
  351 /* add_more_on_output: When space-wise is it worthwhile to try to add more to a socket send buffer */
  352 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space-wise is it worthwhile to try to add more to a socket send buffer"
  353 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN  0
  354 #define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX  0xFFFFFFFF
  355 #define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
  356 
  357 /* incoming_streams: Default number of incoming streams */
  358 #define SCTPCTL_INCOMING_STREAMS_DESC   "Default number of incoming streams"
  359 #define SCTPCTL_INCOMING_STREAMS_MIN    1
  360 #define SCTPCTL_INCOMING_STREAMS_MAX    65535
  361 #define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
  362 
  363 /* outgoing_streams: Default number of outgoing streams */
  364 #define SCTPCTL_OUTGOING_STREAMS_DESC   "Default number of outgoing streams"
  365 #define SCTPCTL_OUTGOING_STREAMS_MIN    1
  366 #define SCTPCTL_OUTGOING_STREAMS_MAX    65535
  367 #define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
  368 
  369 /* cmt_on_off: CMT on/off flag */
  370 #define SCTPCTL_CMT_ON_OFF_DESC         "CMT settings"
  371 #define SCTPCTL_CMT_ON_OFF_MIN          SCTP_CMT_OFF
  372 #define SCTPCTL_CMT_ON_OFF_MAX          SCTP_CMT_MAX
  373 #define SCTPCTL_CMT_ON_OFF_DEFAULT      SCTP_CMT_OFF
  374 
  375 /* cmt_use_dac: CMT DAC on/off flag */
  376 #define SCTPCTL_CMT_USE_DAC_DESC        "CMT DAC on/off flag"
  377 #define SCTPCTL_CMT_USE_DAC_MIN         0
  378 #define SCTPCTL_CMT_USE_DAC_MAX         1
  379 #define SCTPCTL_CMT_USE_DAC_DEFAULT     0
  380 
  381 /* cwnd_maxburst: Use a CWND adjusting maxburst */
  382 #define SCTPCTL_CWND_MAXBURST_DESC      "Use a CWND adjusting maxburst"
  383 #define SCTPCTL_CWND_MAXBURST_MIN       0
  384 #define SCTPCTL_CWND_MAXBURST_MAX       1
  385 #define SCTPCTL_CWND_MAXBURST_DEFAULT   1
  386 
  387 /* nat_friendly: SCTP NAT friendly operation */
  388 #define SCTPCTL_NAT_FRIENDLY_DESC       "SCTP NAT friendly operation"
  389 #define SCTPCTL_NAT_FRIENDLY_MIN        0
  390 #define SCTPCTL_NAT_FRIENDLY_MAX        1
  391 #define SCTPCTL_NAT_FRIENDLY_DEFAULT    1
  392 
  393 /* abc_l_var: SCTP ABC max increase per SACK (L) */
  394 #define SCTPCTL_ABC_L_VAR_DESC          "SCTP ABC max increase per SACK (L)"
  395 #define SCTPCTL_ABC_L_VAR_MIN           0
  396 #define SCTPCTL_ABC_L_VAR_MAX           0xFFFFFFFF
  397 #define SCTPCTL_ABC_L_VAR_DEFAULT       2
  398 
  399 /* max_chained_mbufs: Default max number of small mbufs on a chain */
  400 #define SCTPCTL_MAX_CHAINED_MBUFS_DESC  "Default max number of small mbufs on a chain"
  401 #define SCTPCTL_MAX_CHAINED_MBUFS_MIN   0
  402 #define SCTPCTL_MAX_CHAINED_MBUFS_MAX   0xFFFFFFFF
  403 #define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT       SCTP_DEFAULT_MBUFS_IN_CHAIN
  404 
  405 /* do_sctp_drain: Should SCTP respond to the drain calls */
  406 #define SCTPCTL_DO_SCTP_DRAIN_DESC      "Should SCTP respond to the drain calls"
  407 #define SCTPCTL_DO_SCTP_DRAIN_MIN       0
  408 #define SCTPCTL_DO_SCTP_DRAIN_MAX       1
  409 #define SCTPCTL_DO_SCTP_DRAIN_DEFAULT   1
  410 
  411 /* hb_max_burst: Confirmation Heartbeat max burst? */
  412 #define SCTPCTL_HB_MAX_BURST_DESC       "Confirmation Heartbeat max burst"
  413 #define SCTPCTL_HB_MAX_BURST_MIN        1
  414 #define SCTPCTL_HB_MAX_BURST_MAX        0xFFFFFFFF
  415 #define SCTPCTL_HB_MAX_BURST_DEFAULT    SCTP_DEF_HBMAX_BURST
  416 
  417 /* abort_at_limit: When one-2-one hits qlimit abort */
  418 #define SCTPCTL_ABORT_AT_LIMIT_DESC     "When one-2-one hits qlimit abort"
  419 #define SCTPCTL_ABORT_AT_LIMIT_MIN      0
  420 #define SCTPCTL_ABORT_AT_LIMIT_MAX      1
  421 #define SCTPCTL_ABORT_AT_LIMIT_DEFAULT  0
  422 
  423 /* min_residual: min residual in a data fragment leftover */
  424 #define SCTPCTL_MIN_RESIDUAL_DESC       "Minimum residual data chunk in second part of split"
  425 #define SCTPCTL_MIN_RESIDUAL_MIN        20
  426 #define SCTPCTL_MIN_RESIDUAL_MAX        65535
  427 #define SCTPCTL_MIN_RESIDUAL_DEFAULT    1452
  428 
  429 /* max_retran_chunk: max chunk retransmissions */
  430 #define SCTPCTL_MAX_RETRAN_CHUNK_DESC   "Maximum times an unlucky chunk can be retran'd before assoc abort"
  431 #define SCTPCTL_MAX_RETRAN_CHUNK_MIN    0
  432 #define SCTPCTL_MAX_RETRAN_CHUNK_MAX    65535
  433 #define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT        30
  434 
  435 /* sctp_logging: This gives us logging when the options are enabled */
  436 #define SCTPCTL_LOGGING_LEVEL_DESC      "Ltrace/KTR trace logging level"
  437 #define SCTPCTL_LOGGING_LEVEL_MIN       0
  438 #define SCTPCTL_LOGGING_LEVEL_MAX       0xffffffff
  439 #define SCTPCTL_LOGGING_LEVEL_DEFAULT   0
  440 
  441 /* JRS - default congestion control module sysctl */
  442 #define SCTPCTL_DEFAULT_CC_MODULE_DESC          "Default congestion control module"
  443 #define SCTPCTL_DEFAULT_CC_MODULE_MIN           0
  444 #define SCTPCTL_DEFAULT_CC_MODULE_MAX           2
  445 #define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT       0
  446 
  447 /* RS - default stream scheduling module sysctl */
  448 #define SCTPCTL_DEFAULT_SS_MODULE_DESC          "Default stream scheduling module"
  449 #define SCTPCTL_DEFAULT_SS_MODULE_MIN           0
  450 #define SCTPCTL_DEFAULT_SS_MODULE_MAX           5
  451 #define SCTPCTL_DEFAULT_SS_MODULE_DEFAULT       0
  452 
  453 /* RRS - default fragment interleave */
  454 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC    "Default fragment interleave level"
  455 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN     0
  456 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX     2
  457 #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
  458 
  459 /* mobility_base: Enable SCTP mobility support */
  460 #define SCTPCTL_MOBILITY_BASE_DESC      "Enable SCTP base mobility"
  461 #define SCTPCTL_MOBILITY_BASE_MIN       0
  462 #define SCTPCTL_MOBILITY_BASE_MAX       1
  463 #define SCTPCTL_MOBILITY_BASE_DEFAULT   0
  464 
  465 /* mobility_fasthandoff: Enable SCTP fast handoff support */
  466 #define SCTPCTL_MOBILITY_FASTHANDOFF_DESC       "Enable SCTP fast handoff"
  467 #define SCTPCTL_MOBILITY_FASTHANDOFF_MIN        0
  468 #define SCTPCTL_MOBILITY_FASTHANDOFF_MAX        1
  469 #define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT    0
  470 
  471 /* Enable SCTP/UDP tunneling port */
  472 #define SCTPCTL_UDP_TUNNELING_PORT_DESC         "Set the SCTP/UDP tunneling port"
  473 #define SCTPCTL_UDP_TUNNELING_PORT_MIN          0
  474 #define SCTPCTL_UDP_TUNNELING_PORT_MAX          65535
  475 #define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT      0
  476 
  477 /* Enable sending of the SACK-IMMEDIATELY bit */
  478 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC    "Enable sending of the SACK-IMMEDIATELY-bit."
  479 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN     0
  480 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX     1
  481 #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX
  482 
  483 /* Enable sending of the NAT-FRIENDLY message */
  484 #define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs."
  485 #define SCTPCTL_NAT_FRIENDLY_INITS_MIN  0
  486 #define SCTPCTL_NAT_FRIENDLY_INITS_MAX  1
  487 #define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT      SCTPCTL_NAT_FRIENDLY_INITS_MIN
  488 
  489 /* Vtag time wait in seconds */
  490 #define SCTPCTL_TIME_WAIT_DESC  "Vtag time wait time in seconds, 0 disables it."
  491 #define SCTPCTL_TIME_WAIT_MIN   0
  492 #define SCTPCTL_TIME_WAIT_MAX   0xffffffff
  493 #define SCTPCTL_TIME_WAIT_DEFAULT       SCTP_TIME_WAIT
  494 
  495 /* Enable Send/Receive buffer splitting */
  496 #define SCTPCTL_BUFFER_SPLITTING_DESC           "Enable send/receive buffer splitting."
  497 #define SCTPCTL_BUFFER_SPLITTING_MIN            0
  498 #define SCTPCTL_BUFFER_SPLITTING_MAX            0x3
  499 #define SCTPCTL_BUFFER_SPLITTING_DEFAULT        SCTPCTL_BUFFER_SPLITTING_MIN
  500 
  501 /* Initial congestion window in MTU */
  502 #define SCTPCTL_INITIAL_CWND_DESC       "Initial congestion window in MTUs"
  503 #define SCTPCTL_INITIAL_CWND_MIN        0
  504 #define SCTPCTL_INITIAL_CWND_MAX        0xffffffff
  505 #define SCTPCTL_INITIAL_CWND_DEFAULT    3
  506 
  507 /* rttvar smooth avg for bw calc  */
  508 #define SCTPCTL_RTTVAR_BW_DESC  "Shift amount for bw smoothing on rtt calc"
  509 #define SCTPCTL_RTTVAR_BW_MIN   0
  510 #define SCTPCTL_RTTVAR_BW_MAX   32
  511 #define SCTPCTL_RTTVAR_BW_DEFAULT       4
  512 
  513 /* rttvar smooth avg for bw calc  */
  514 #define SCTPCTL_RTTVAR_RTT_DESC "Shift amount for rtt smoothing on rtt calc"
  515 #define SCTPCTL_RTTVAR_RTT_MIN  0
  516 #define SCTPCTL_RTTVAR_RTT_MAX  32
  517 #define SCTPCTL_RTTVAR_RTT_DEFAULT      5
  518 
  519 #define SCTPCTL_RTTVAR_EQRET_DESC       "What to return when rtt and bw are unchanged"
  520 #define SCTPCTL_RTTVAR_EQRET_MIN        0
  521 #define SCTPCTL_RTTVAR_EQRET_MAX        1
  522 #define SCTPCTL_RTTVAR_EQRET_DEFAULT    0
  523 
  524 #define SCTPCTL_RTTVAR_STEADYS_DESC     "How many the sames it takes to try step down of cwnd"
  525 #define SCTPCTL_RTTVAR_STEADYS_MIN      0
  526 #define SCTPCTL_RTTVAR_STEADYS_MAX      0xFFFF
  527 #define SCTPCTL_RTTVAR_STEADYS_DEFAULT  20      /* 0 means disable feature */
  528 
  529 #define SCTPCTL_RTTVAR_DCCCECN_DESC     "Enable for RTCC CC datacenter ECN"
  530 #define SCTPCTL_RTTVAR_DCCCECN_MIN      0
  531 #define SCTPCTL_RTTVAR_DCCCECN_MAX      1
  532 #define SCTPCTL_RTTVAR_DCCCECN_DEFAULT  1       /* 0 means disable feature */
  533 
  534 #define SCTPCTL_BLACKHOLE_DESC          "Enable SCTP blackholing. See blackhole(4) for more details."
  535 #define SCTPCTL_BLACKHOLE_MIN           0
  536 #define SCTPCTL_BLACKHOLE_MAX           2
  537 #define SCTPCTL_BLACKHOLE_DEFAULT       SCTPCTL_BLACKHOLE_MIN
  538 
  539 #define SCTPCTL_DIAG_INFO_CODE_DESC     "Diagnostic information error cause code"
  540 #define SCTPCTL_DIAG_INFO_CODE_MIN      0
  541 #define SCTPCTL_DIAG_INFO_CODE_MAX      65535
  542 #define SCTPCTL_DIAG_INFO_CODE_DEFAULT  0
  543 
  544 #if defined(SCTP_DEBUG)
  545 /* debug: Configure debug output */
  546 #define SCTPCTL_DEBUG_DESC      "Configure debug output"
  547 #define SCTPCTL_DEBUG_MIN       0
  548 #define SCTPCTL_DEBUG_MAX       0xFFFFFFFF
  549 #define SCTPCTL_DEBUG_DEFAULT   0
  550 #endif
  551 
  552 
  553 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  554 #define SCTPCTL_OUTPUT_UNLOCKED_DESC    "Unlock socket when sending packets down to IP."
  555 #define SCTPCTL_OUTPUT_UNLOCKED_MIN     0
  556 #define SCTPCTL_OUTPUT_UNLOCKED_MAX     1
  557 #define SCTPCTL_OUTPUT_UNLOCKED_DEFAULT SCTPCTL_OUTPUT_UNLOCKED_MIN
  558 #endif
  559 
  560 
  561 #if defined(_KERNEL) || defined(__Userspace__)
  562 #if defined(SYSCTL_DECL)
  563 SYSCTL_DECL(_net_inet_sctp);
  564 #endif
  565 
  566 void sctp_init_sysctls(void);
  567 
  568 #endif                          /* _KERNEL */
  569 #endif                          /* __sctp_sysctl_h__ */

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