FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_sysctl.h

     /*-
      * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions are met:
      *
      * a) Redistributions of source code must retain the above copyright notice,
      *   this list of conditions and the following disclaimer.
      *
     * b) Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *   the documentation and/or other materials provided with the distribution.
     *
     * c) Neither the name of Cisco Systems, Inc. nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #ifndef __sctp_sysctl_h__
    #define __sctp_sysctl_h__
    
    #include <netinet/sctp_os.h>
    #include <netinet/sctp_constants.h>
    
    struct sctp_sysctl {
            uint32_t sctp_sendspace;
            uint32_t sctp_recvspace;
            uint32_t sctp_auto_asconf;
            uint32_t sctp_multiple_asconfs;
            uint32_t sctp_ecn_enable;
            uint32_t sctp_ecn_nonce;
            uint32_t sctp_strict_sacks;
            uint32_t sctp_no_csum_on_loopback;
            uint32_t sctp_strict_init;
            uint32_t sctp_peer_chunk_oh;
            uint32_t sctp_max_burst_default;
            uint32_t sctp_max_chunks_on_queue;
            uint32_t sctp_hashtblsize;
            uint32_t sctp_pcbtblsize;
            uint32_t sctp_min_split_point;
            uint32_t sctp_chunkscale;
            uint32_t sctp_delayed_sack_time_default;
            uint32_t sctp_sack_freq_default;
            uint32_t sctp_system_free_resc_limit;
            uint32_t sctp_asoc_free_resc_limit;
            uint32_t sctp_heartbeat_interval_default;
            uint32_t sctp_pmtu_raise_time_default;
            uint32_t sctp_shutdown_guard_time_default;
            uint32_t sctp_secret_lifetime_default;
            uint32_t sctp_rto_max_default;
            uint32_t sctp_rto_min_default;
            uint32_t sctp_rto_initial_default;
            uint32_t sctp_init_rto_max_default;
            uint32_t sctp_valid_cookie_life_default;
            uint32_t sctp_init_rtx_max_default;
            uint32_t sctp_assoc_rtx_max_default;
            uint32_t sctp_path_rtx_max_default;
            uint32_t sctp_add_more_threshold;
            uint32_t sctp_nr_outgoing_streams_default;
            uint32_t sctp_cmt_on_off;
            uint32_t sctp_cmt_use_dac;
            uint32_t sctp_cmt_pf;
            uint32_t sctp_use_cwnd_based_maxburst;
            uint32_t sctp_early_fr;
            uint32_t sctp_early_fr_msec;
            uint32_t sctp_asconf_auth_nochk;
            uint32_t sctp_auth_disable;
            uint32_t sctp_nat_friendly;
            uint32_t sctp_L2_abc_variable;
            uint32_t sctp_mbuf_threshold_count;
            uint32_t sctp_do_drain;
            uint32_t sctp_hb_maxburst;
            uint32_t sctp_abort_if_one_2_one_hits_limit;
            uint32_t sctp_strict_data_order;
            uint32_t sctp_min_residual;
            uint32_t sctp_max_retran_chunk;
            uint32_t sctp_logging_level;
            /* JRS - Variable for default congestion control module */
            uint32_t sctp_default_cc_module;
            uint32_t sctp_default_frag_interleave;
            uint32_t sctp_mobility_base;
            uint32_t sctp_mobility_fasthandoff;
    #if defined(SCTP_LOCAL_TRACE_BUF)
            struct sctp_log sctp_log;
   #endif
           uint32_t sctp_udp_tunneling_for_client_enable;
           uint32_t sctp_udp_tunneling_port;
           uint32_t sctp_enable_sack_immediately;
   #if defined(SCTP_DEBUG)
           uint32_t sctp_debug_on;
   #endif
   #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
           uint32_t sctp_output_unlocked;
   #endif
   };
   
   /*
    * limits for the sysctl variables
    */
   /* maxdgram: Maximum outgoing SCTP buffer size */
   #define SCTPCTL_MAXDGRAM_DESC           "Maximum outgoing SCTP buffer size"
   #define SCTPCTL_MAXDGRAM_MIN            0
   #define SCTPCTL_MAXDGRAM_MAX            0xFFFFFFFF
   #define SCTPCTL_MAXDGRAM_DEFAULT        262144  /* 256k */
   
   /* recvspace: Maximum incoming SCTP buffer size */
   #define SCTPCTL_RECVSPACE_DESC          "Maximum incoming SCTP buffer size"
   #define SCTPCTL_RECVSPACE_MIN           0
   #define SCTPCTL_RECVSPACE_MAX           0xFFFFFFFF
   #define SCTPCTL_RECVSPACE_DEFAULT       262144  /* 256k */
   
   /* autoasconf: Enable SCTP Auto-ASCONF */
   #define SCTPCTL_AUTOASCONF_DESC         "Enable SCTP Auto-ASCONF"
   #define SCTPCTL_AUTOASCONF_MIN          0
   #define SCTPCTL_AUTOASCONF_MAX          1
   #define SCTPCTL_AUTOASCONF_DEFAULT      SCTP_DEFAULT_AUTO_ASCONF
   
   /* autoasconf: Enable SCTP Auto-ASCONF */
   #define SCTPCTL_MULTIPLEASCONFS_DESC    "Enable SCTP Muliple-ASCONFs"
   #define SCTPCTL_MULTIPLEASCONFS_MIN     0
   #define SCTPCTL_MULTIPLEASCONFS_MAX     1
   #define SCTPCTL_MULTIPLEASCONFS_DEFAULT SCTP_DEFAULT_MULTIPLE_ASCONFS
   
   /* ecn_enable: Enable SCTP ECN */
   #define SCTPCTL_ECN_ENABLE_DESC         "Enable SCTP ECN"
   #define SCTPCTL_ECN_ENABLE_MIN          0
   #define SCTPCTL_ECN_ENABLE_MAX          1
   #define SCTPCTL_ECN_ENABLE_DEFAULT      1
   
   /* ecn_nonce: Enable SCTP ECN Nonce */
   #define SCTPCTL_ECN_NONCE_DESC          "Enable SCTP ECN Nonce"
   #define SCTPCTL_ECN_NONCE_MIN           0
   #define SCTPCTL_ECN_NONCE_MAX           1
   #define SCTPCTL_ECN_NONCE_DEFAULT       0
   
   /* strict_sacks: Enable SCTP Strict SACK checking */
   #define SCTPCTL_STRICT_SACKS_DESC       "Enable SCTP Strict SACK checking"
   #define SCTPCTL_STRICT_SACKS_MIN        0
   #define SCTPCTL_STRICT_SACKS_MAX        1
   #define SCTPCTL_STRICT_SACKS_DEFAULT    0
   
   /* loopback_nocsum: Enable NO Csum on packets sent on loopback */
   #define SCTPCTL_LOOPBACK_NOCSUM_DESC    "Enable NO Csum on packets sent on loopback"
   #define SCTPCTL_LOOPBACK_NOCSUM_MIN     0
   #define SCTPCTL_LOOPBACK_NOCSUM_MAX     1
   #define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT 1
   
   /* strict_init: Enable strict INIT/INIT-ACK singleton enforcement */
   #define SCTPCTL_STRICT_INIT_DESC        "Enable strict INIT/INIT-ACK singleton enforcement"
   #define SCTPCTL_STRICT_INIT_MIN         0
   #define SCTPCTL_STRICT_INIT_MAX         1
   #define SCTPCTL_STRICT_INIT_DEFAULT     1
   
   /* peer_chkoh: Amount to debit peers rwnd per chunk sent */
   #define SCTPCTL_PEER_CHKOH_DESC         "Amount to debit peers rwnd per chunk sent"
   #define SCTPCTL_PEER_CHKOH_MIN          0
   #define SCTPCTL_PEER_CHKOH_MAX          0xFFFFFFFF
   #define SCTPCTL_PEER_CHKOH_DEFAULT      256
   
   /* maxburst: Default max burst for sctp endpoints */
   #define SCTPCTL_MAXBURST_DESC           "Default max burst for sctp endpoints"
   #define SCTPCTL_MAXBURST_MIN            1
   #define SCTPCTL_MAXBURST_MAX            0xFFFFFFFF
   #define SCTPCTL_MAXBURST_DEFAULT        SCTP_DEF_MAX_BURST
   
   /* maxchunks: Default max chunks on queue per asoc */
   #define SCTPCTL_MAXCHUNKS_DESC          "Default max chunks on queue per asoc"
   #define SCTPCTL_MAXCHUNKS_MIN           0
   #define SCTPCTL_MAXCHUNKS_MAX           0xFFFFFFFF
   #define SCTPCTL_MAXCHUNKS_DEFAULT       SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
   
   /* tcbhashsize: Tuneable for Hash table sizes */
   #define SCTPCTL_TCBHASHSIZE_DESC        "Tunable for TCB hash table sizes"
   #define SCTPCTL_TCBHASHSIZE_MIN         1
   #define SCTPCTL_TCBHASHSIZE_MAX         0xFFFFFFFF
   #define SCTPCTL_TCBHASHSIZE_DEFAULT     SCTP_TCBHASHSIZE
   
   /* pcbhashsize: Tuneable for PCB Hash table sizes */
   #define SCTPCTL_PCBHASHSIZE_DESC        "Tunable for PCB hash table sizes"
   #define SCTPCTL_PCBHASHSIZE_MIN         1
   #define SCTPCTL_PCBHASHSIZE_MAX         0xFFFFFFFF
   #define SCTPCTL_PCBHASHSIZE_DEFAULT     SCTP_PCBHASHSIZE
   
   /* min_split_point: Minimum size when splitting a chunk */
   #define SCTPCTL_MIN_SPLIT_POINT_DESC    "Minimum size when splitting a chunk"
   #define SCTPCTL_MIN_SPLIT_POINT_MIN     0
   #define SCTPCTL_MIN_SPLIT_POINT_MAX     0xFFFFFFFF
   #define SCTPCTL_MIN_SPLIT_POINT_DEFAULT SCTP_DEFAULT_SPLIT_POINT_MIN
   
   /* chunkscale: Tuneable for Scaling of number of chunks and messages */
   #define SCTPCTL_CHUNKSCALE_DESC         "Tuneable for Scaling of number of chunks and messages"
   #define SCTPCTL_CHUNKSCALE_MIN          1
   #define SCTPCTL_CHUNKSCALE_MAX          0xFFFFFFFF
   #define SCTPCTL_CHUNKSCALE_DEFAULT      SCTP_CHUNKQUEUE_SCALE
   
   /* delayed_sack_time: Default delayed SACK timer in msec */
   #define SCTPCTL_DELAYED_SACK_TIME_DESC  "Default delayed SACK timer in msec"
   #define SCTPCTL_DELAYED_SACK_TIME_MIN   0
   #define SCTPCTL_DELAYED_SACK_TIME_MAX   0xFFFFFFFF
   #define SCTPCTL_DELAYED_SACK_TIME_DEFAULT       SCTP_RECV_MSEC
   
   /* sack_freq: Default SACK frequency */
   #define SCTPCTL_SACK_FREQ_DESC          "Default SACK frequency"
   #define SCTPCTL_SACK_FREQ_MIN           0
   #define SCTPCTL_SACK_FREQ_MAX           0xFFFFFFFF
   #define SCTPCTL_SACK_FREQ_DEFAULT       SCTP_DEFAULT_SACK_FREQ
   
   /* sys_resource: Max number of cached resources in the system */
   #define SCTPCTL_SYS_RESOURCE_DESC       "Max number of cached resources in the system"
   #define SCTPCTL_SYS_RESOURCE_MIN        0
   #define SCTPCTL_SYS_RESOURCE_MAX        0xFFFFFFFF
   #define SCTPCTL_SYS_RESOURCE_DEFAULT    SCTP_DEF_SYSTEM_RESC_LIMIT
   
   /* asoc_resource: Max number of cached resources in an asoc */
   #define SCTPCTL_ASOC_RESOURCE_DESC      "Max number of cached resources in an asoc"
   #define SCTPCTL_ASOC_RESOURCE_MIN       0
   #define SCTPCTL_ASOC_RESOURCE_MAX       0xFFFFFFFF
   #define SCTPCTL_ASOC_RESOURCE_DEFAULT   SCTP_DEF_ASOC_RESC_LIMIT
   
   /* heartbeat_interval: Default heartbeat interval in msec */
   #define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in msec"
   #define SCTPCTL_HEARTBEAT_INTERVAL_MIN  0
   #define SCTPCTL_HEARTBEAT_INTERVAL_MAX  0xFFFFFFFF
   #define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT      SCTP_HB_DEFAULT_MSEC
   
   /* pmtu_raise_time: Default PMTU raise timer in sec */
   #define SCTPCTL_PMTU_RAISE_TIME_DESC    "Default PMTU raise timer in sec"
   #define SCTPCTL_PMTU_RAISE_TIME_MIN     0
   #define SCTPCTL_PMTU_RAISE_TIME_MAX     0xFFFFFFFF
   #define SCTPCTL_PMTU_RAISE_TIME_DEFAULT SCTP_DEF_PMTU_RAISE_SEC
   
   /* shutdown_guard_time: Default shutdown guard timer in sec */
   #define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC        "Default shutdown guard timer in sec"
   #define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN         0
   #define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX         0xFFFFFFFF
   #define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT     SCTP_DEF_MAX_SHUTDOWN_SEC
   
   /* secret_lifetime: Default secret lifetime in sec */
   #define SCTPCTL_SECRET_LIFETIME_DESC    "Default secret lifetime in sec"
   #define SCTPCTL_SECRET_LIFETIME_MIN     0
   #define SCTPCTL_SECRET_LIFETIME_MAX     0xFFFFFFFF
   #define SCTPCTL_SECRET_LIFETIME_DEFAULT SCTP_DEFAULT_SECRET_LIFE_SEC
   
   /* rto_max: Default maximum retransmission timeout in msec */
   #define SCTPCTL_RTO_MAX_DESC            "Default maximum retransmission timeout in msec"
   #define SCTPCTL_RTO_MAX_MIN             0
   #define SCTPCTL_RTO_MAX_MAX             0xFFFFFFFF
   #define SCTPCTL_RTO_MAX_DEFAULT         SCTP_RTO_UPPER_BOUND
   
   /* rto_min: Default minimum retransmission timeout in msec */
   #define SCTPCTL_RTO_MIN_DESC            "Default minimum retransmission timeout in msec"
   #define SCTPCTL_RTO_MIN_MIN             0
   #define SCTPCTL_RTO_MIN_MAX             0xFFFFFFFF
   #define SCTPCTL_RTO_MIN_DEFAULT         SCTP_RTO_LOWER_BOUND
   
   /* rto_initial: Default initial retransmission timeout in msec */
   #define SCTPCTL_RTO_INITIAL_DESC        "Default initial retransmission timeout in msec"
   #define SCTPCTL_RTO_INITIAL_MIN         0
   #define SCTPCTL_RTO_INITIAL_MAX         0xFFFFFFFF
   #define SCTPCTL_RTO_INITIAL_DEFAULT     SCTP_RTO_INITIAL
   
   /* init_rto_max: Default maximum retransmission timeout during association setup in msec */
   #define SCTPCTL_INIT_RTO_MAX_DESC       "Default maximum retransmission timeout during association setup in msec"
   #define SCTPCTL_INIT_RTO_MAX_MIN        0
   #define SCTPCTL_INIT_RTO_MAX_MAX        0xFFFFFFFF
   #define SCTPCTL_INIT_RTO_MAX_DEFAULT    SCTP_RTO_UPPER_BOUND
   
   /* valid_cookie_life: Default cookie lifetime in sec */
   #define SCTPCTL_VALID_COOKIE_LIFE_DESC  "Default cookie lifetime in sec"
   #define SCTPCTL_VALID_COOKIE_LIFE_MIN   0
   #define SCTPCTL_VALID_COOKIE_LIFE_MAX   0xFFFFFFFF
   #define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT       SCTP_DEFAULT_COOKIE_LIFE
   
   /* init_rtx_max: Default maximum number of retransmission for INIT chunks */
   #define SCTPCTL_INIT_RTX_MAX_DESC       "Default maximum number of retransmission for INIT chunks"
   #define SCTPCTL_INIT_RTX_MAX_MIN        0
   #define SCTPCTL_INIT_RTX_MAX_MAX        0xFFFFFFFF
   #define SCTPCTL_INIT_RTX_MAX_DEFAULT    SCTP_DEF_MAX_INIT
   
   /* assoc_rtx_max: Default maximum number of retransmissions per association */
   #define SCTPCTL_ASSOC_RTX_MAX_DESC      "Default maximum number of retransmissions per association"
   #define SCTPCTL_ASSOC_RTX_MAX_MIN       0
   #define SCTPCTL_ASSOC_RTX_MAX_MAX       0xFFFFFFFF
   #define SCTPCTL_ASSOC_RTX_MAX_DEFAULT   SCTP_DEF_MAX_SEND
   
   /* path_rtx_max: Default maximum of retransmissions per path */
   #define SCTPCTL_PATH_RTX_MAX_DESC       "Default maximum of retransmissions per path"
   #define SCTPCTL_PATH_RTX_MAX_MIN        0
   #define SCTPCTL_PATH_RTX_MAX_MAX        0xFFFFFFFF
   #define SCTPCTL_PATH_RTX_MAX_DEFAULT    SCTP_DEF_MAX_PATH_RTX
   
   /* add_more_on_output: When space wise is it worthwhile to try to add more to a socket send buffer */
   #define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC "When space wise is it worthwhile to try to add more to a socket send buffer"
   #define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN  0
   #define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX  0xFFFFFFFF
   #define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
   
   /* outgoing_streams: Default number of outgoing streams */
   #define SCTPCTL_OUTGOING_STREAMS_DESC   "Default number of outgoing streams"
   #define SCTPCTL_OUTGOING_STREAMS_MIN    1
   #define SCTPCTL_OUTGOING_STREAMS_MAX    65535
   #define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
   
   /* cmt_on_off: CMT on/off flag */
   #define SCTPCTL_CMT_ON_OFF_DESC         "CMT on/off flag"
   #define SCTPCTL_CMT_ON_OFF_MIN          0
   #define SCTPCTL_CMT_ON_OFF_MAX          1
   #define SCTPCTL_CMT_ON_OFF_DEFAULT      0
   
   /* cmt_use_dac: CMT DAC on/off flag */
   #define SCTPCTL_CMT_USE_DAC_DESC        "CMT DAC on/off flag"
   #define SCTPCTL_CMT_USE_DAC_MIN         0
   #define SCTPCTL_CMT_USE_DAC_MAX         1
   #define SCTPCTL_CMT_USE_DAC_DEFAULT     0
   
   /* JRS 5/2107 - CMT PF type flag */
   #define SCTPCTL_CMT_PF_DESC             "CMT PF type flag"
   #define SCTPCTL_CMT_PF_MIN              0
   #define SCTPCTL_CMT_PF_MAX              2
   #define SCTPCTL_CMT_PF_DEFAULT          0
   
   /* cwnd_maxburst: Use a CWND adjusting maxburst */
   #define SCTPCTL_CWND_MAXBURST_DESC      "Use a CWND adjusting maxburst"
   #define SCTPCTL_CWND_MAXBURST_MIN       0
   #define SCTPCTL_CWND_MAXBURST_MAX       1
   #define SCTPCTL_CWND_MAXBURST_DEFAULT   1
   
   /* early_fast_retran: Early Fast Retransmit with timer */
   #define SCTPCTL_EARLY_FAST_RETRAN_DESC  "Early Fast Retransmit with timer"
   #define SCTPCTL_EARLY_FAST_RETRAN_MIN   0
   #define SCTPCTL_EARLY_FAST_RETRAN_MAX   0xFFFFFFFF
   #define SCTPCTL_EARLY_FAST_RETRAN_DEFAULT       0
   
   /* early_fast_retran_msec: Early Fast Retransmit minimum timer value */
   #define SCTPCTL_EARLY_FAST_RETRAN_MSEC_DESC     "Early Fast Retransmit minimum timer value"
   #define SCTPCTL_EARLY_FAST_RETRAN_MSEC_MIN      0
   #define SCTPCTL_EARLY_FAST_RETRAN_MSEC_MAX      0xFFFFFFFF
   #define SCTPCTL_EARLY_FAST_RETRAN_MSEC_DEFAULT  SCTP_MINFR_MSEC_TIMER
   
   /* asconf_auth_nochk: Disable SCTP ASCONF AUTH requirement */
   #define SCTPCTL_ASCONF_AUTH_NOCHK_DESC  "Disable SCTP ASCONF AUTH requirement"
   #define SCTPCTL_ASCONF_AUTH_NOCHK_MIN   0
   #define SCTPCTL_ASCONF_AUTH_NOCHK_MAX   1
   #define SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT       0
   
   /* auth_disable: Disable SCTP AUTH function */
   #define SCTPCTL_AUTH_DISABLE_DESC       "Disable SCTP AUTH function"
   #define SCTPCTL_AUTH_DISABLE_MIN        0
   #define SCTPCTL_AUTH_DISABLE_MAX        1
   #define SCTPCTL_AUTH_DISABLE_DEFAULT    0
   
   /* nat_friendly: SCTP NAT friendly operation */
   #define SCTPCTL_NAT_FRIENDLY_DESC       "SCTP NAT friendly operation"
   #define SCTPCTL_NAT_FRIENDLY_MIN        0
   #define SCTPCTL_NAT_FRIENDLY_MAX        1
   #define SCTPCTL_NAT_FRIENDLY_DEFAULT    1
   
   /* abc_l_var: SCTP ABC max increase per SACK (L) */
   #define SCTPCTL_ABC_L_VAR_DESC          "SCTP ABC max increase per SACK (L)"
   #define SCTPCTL_ABC_L_VAR_MIN           0
   #define SCTPCTL_ABC_L_VAR_MAX           0xFFFFFFFF
   #define SCTPCTL_ABC_L_VAR_DEFAULT       1
   
   /* max_chained_mbufs: Default max number of small mbufs on a chain */
   #define SCTPCTL_MAX_CHAINED_MBUFS_DESC  "Default max number of small mbufs on a chain"
   #define SCTPCTL_MAX_CHAINED_MBUFS_MIN   0
   #define SCTPCTL_MAX_CHAINED_MBUFS_MAX   0xFFFFFFFF
   #define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT       SCTP_DEFAULT_MBUFS_IN_CHAIN
   
   /* do_sctp_drain: Should SCTP respond to the drain calls */
   #define SCTPCTL_DO_SCTP_DRAIN_DESC      "Should SCTP respond to the drain calls"
   #define SCTPCTL_DO_SCTP_DRAIN_MIN       0
   #define SCTPCTL_DO_SCTP_DRAIN_MAX       1
   #define SCTPCTL_DO_SCTP_DRAIN_DEFAULT   1
   
   /* hb_max_burst: Confirmation Heartbeat max burst? */
   #define SCTPCTL_HB_MAX_BURST_DESC       "Confirmation Heartbeat max burst"
   #define SCTPCTL_HB_MAX_BURST_MIN        1
   #define SCTPCTL_HB_MAX_BURST_MAX        0xFFFFFFFF
   #define SCTPCTL_HB_MAX_BURST_DEFAULT    SCTP_DEF_MAX_BURST
   
   /* abort_at_limit: When one-2-one hits qlimit abort */
   #define SCTPCTL_ABORT_AT_LIMIT_DESC     "When one-2-one hits qlimit abort"
   #define SCTPCTL_ABORT_AT_LIMIT_MIN      0
   #define SCTPCTL_ABORT_AT_LIMIT_MAX      1
   #define SCTPCTL_ABORT_AT_LIMIT_DEFAULT  0
   
   /* strict_data_order: Enforce strict data ordering, abort if control inside data */
   #define SCTPCTL_STRICT_DATA_ORDER_DESC  "Enforce strict data ordering, abort if control inside data"
   #define SCTPCTL_STRICT_DATA_ORDER_MIN   0
   #define SCTPCTL_STRICT_DATA_ORDER_MAX   1
   #define SCTPCTL_STRICT_DATA_ORDER_DEFAULT       0
   
   /* min_residual: min residual in a data fragment leftover */
   #define SCTPCTL_MIN_RESIDUAL_DESC       "Minimum residual data chunk in second part of split"
   #define SCTPCTL_MIN_RESIDUAL_MIN        20
   #define SCTPCTL_MIN_RESIDUAL_MAX        65535
   #define SCTPCTL_MIN_RESIDUAL_DEFAULT    1452
   
   /* max_retran_chunk: max chunk retransmissions */
   #define SCTPCTL_MAX_RETRAN_CHUNK_DESC   "Maximum times an unlucky chunk can be retran'd before assoc abort"
   #define SCTPCTL_MAX_RETRAN_CHUNK_MIN    0
   #define SCTPCTL_MAX_RETRAN_CHUNK_MAX    65535
   #define SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT        30
   
   /* sctp_logging: This gives us logging when the options are enabled */
   #define SCTPCTL_LOGGING_LEVEL_DESC      "Ltrace/KTR trace logging level"
   #define SCTPCTL_LOGGING_LEVEL_MIN       0
   #define SCTPCTL_LOGGING_LEVEL_MAX       0xffffffff
   #define SCTPCTL_LOGGING_LEVEL_DEFAULT   0
   
   /* JRS - default congestion control module sysctl */
   #define SCTPCTL_DEFAULT_CC_MODULE_DESC          "Default congestion control module"
   #define SCTPCTL_DEFAULT_CC_MODULE_MIN           0
   #define SCTPCTL_DEFAULT_CC_MODULE_MAX           2
   #define SCTPCTL_DEFAULT_CC_MODULE_DEFAULT       0
   
   /* RRS - default fragment interleave */
   #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC    "Default fragment interleave level"
   #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN     0
   #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX     2
   #define SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT 1
   
   /* mobility_base: Enable SCTP mobility support */
   #define SCTPCTL_MOBILITY_BASE_DESC      "Enable SCTP base mobility"
   #define SCTPCTL_MOBILITY_BASE_MIN       0
   #define SCTPCTL_MOBILITY_BASE_MAX       1
   #define SCTPCTL_MOBILITY_BASE_DEFAULT   SCTP_DEFAULT_MOBILITY_BASE
   
   /* mobility_fasthandoff: Enable SCTP fast handoff support */
   #define SCTPCTL_MOBILITY_FASTHANDOFF_DESC       "Enable SCTP fast handoff"
   #define SCTPCTL_MOBILITY_FASTHANDOFF_MIN        0
   #define SCTPCTL_MOBILITY_FASTHANDOFF_MAX        1
   #define SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT    SCTP_DEFAULT_MOBILITY_FASTHANDOFF
   
   /* Enable SCTP/UDP tunneling for clients*/
   #define SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DESC    "Enable SCTP/UDP tunneling for client"
   #define SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MIN     0
   #define SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MAX     1
   #define SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DEFAULT SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MIN
   
   /* Enable SCTP/UDP tunneling port */
   #define SCTPCTL_UDP_TUNNELING_PORT_DESC         "Set the SCTP/UDP tunneling port"
   #define SCTPCTL_UDP_TUNNELING_PORT_MIN          0
   #define SCTPCTL_UDP_TUNNELING_PORT_MAX          65535
   #define SCTPCTL_UDP_TUNNELING_PORT_DEFAULT      SCTP_OVER_UDP_TUNNELING_PORT
   
   /* Enable sending of the SACK-IMMEDIATELY bit */
   #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC    "Enable sending of the SACK-IMMEDIATELY-bit."
   #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN     0
   #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX     1
   #define SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN
   
   #if defined(SCTP_DEBUG)
   /* debug: Configure debug output */
   #define SCTPCTL_DEBUG_DESC      "Configure debug output"
   #define SCTPCTL_DEBUG_MIN       0
   #define SCTPCTL_DEBUG_MAX       0xFFFFFFFF
   #define SCTPCTL_DEBUG_DEFAULT   0
   #endif
   
   
   #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
   #define SCTPCTL_OUTPUT_UNLOCKED_DESC    "Unlock socket when sending packets down to IP."
   #define SCTPCTL_OUTPUT_UNLOCKED_MIN     0
   #define SCTPCTL_OUTPUT_UNLOCKED_MAX     1
   #define SCTPCTL_OUTPUT_UNLOCKED_DEFAULT SCTPCTL_OUTPUT_UNLOCKED_MIN
   #endif
   
   
   #if defined(_KERNEL) || defined(__Userspace__)
   #if defined(SYSCTL_DECL)
   SYSCTL_DECL(_net_inet_sctp);
   #endif
   
   void sctp_init_sysctls(void);
   
   #endif                          /* _KERNEL */
   #endif                          /* __sctp_sysctl_h__ */

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