sctp_sysctl.h

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/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
 * Copyright (c) 2008-2012, by Michael Tuexen. 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 _NETINET_SCTP_SYSCTL_H_
#define _NETINET_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_pr_enable;
        uint32_t sctp_auth_enable;
        uint32_t sctp_asconf_enable;
        uint32_t sctp_reconfig_enable;
        uint32_t sctp_nrsack_enable;
        uint32_t sctp_pktdrop_enable;
        uint32_t sctp_fr_max_burst_default;
        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_path_pf_threshold;
        uint32_t sctp_add_more_threshold;
        uint32_t sctp_nr_incoming_streams_default;
        uint32_t sctp_nr_outgoing_streams_default;
        uint32_t sctp_cmt_on_off;
        uint32_t sctp_cmt_use_dac;
        uint32_t sctp_use_cwnd_based_maxburst;
        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_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;
        /* RS - Variable for default stream scheduling module */
        uint32_t sctp_default_ss_module;
        uint32_t sctp_default_frag_interleave;
        uint32_t sctp_mobility_base;
        uint32_t sctp_mobility_fasthandoff;
        uint32_t sctp_inits_include_nat_friendly;
        uint32_t sctp_rttvar_bw;
        uint32_t sctp_rttvar_rtt;
        uint32_t sctp_rttvar_eqret;
        uint32_t sctp_steady_step;
        uint32_t sctp_use_dccc_ecn;
        uint32_t sctp_diag_info_code;
#if defined(SCTP_LOCAL_TRACE_BUF)
        struct sctp_log sctp_log;
#endif
        uint32_t sctp_udp_tunneling_port;
        uint32_t sctp_enable_sack_immediately;
        uint32_t sctp_vtag_time_wait;
        uint32_t sctp_buffer_splitting;
        uint32_t sctp_initial_cwnd;
        uint32_t sctp_blackhole;
        uint32_t sctp_sendall_limit;
#if defined(SCTP_DEBUG)
        uint32_t sctp_debug_on;
#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      1
 
/* 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
 
/* pr_enable: Enable PR-SCTP */
#define SCTPCTL_PR_ENABLE_DESC          "Enable PR-SCTP"
#define SCTPCTL_PR_ENABLE_MIN           0
#define SCTPCTL_PR_ENABLE_MAX           1
#define SCTPCTL_PR_ENABLE_DEFAULT       1
 
/* auth_enable: Enable SCTP AUTH function */
#define SCTPCTL_AUTH_ENABLE_DESC        "Enable SCTP AUTH function"
#define SCTPCTL_AUTH_ENABLE_MIN         0
#define SCTPCTL_AUTH_ENABLE_MAX         1
#define SCTPCTL_AUTH_ENABLE_DEFAULT     1
 
/* asconf_enable: Enable SCTP ASCONF */
#define SCTPCTL_ASCONF_ENABLE_DESC      "Enable SCTP ASCONF"
#define SCTPCTL_ASCONF_ENABLE_MIN       0
#define SCTPCTL_ASCONF_ENABLE_MAX       1
#define SCTPCTL_ASCONF_ENABLE_DEFAULT   1
 
/* reconfig_enable: Enable SCTP RE-CONFIG */
#define SCTPCTL_RECONFIG_ENABLE_DESC    "Enable SCTP RE-CONFIG"
#define SCTPCTL_RECONFIG_ENABLE_MIN     0
#define SCTPCTL_RECONFIG_ENABLE_MAX     1
#define SCTPCTL_RECONFIG_ENABLE_DEFAULT 1
 
/* nrsack_enable: Enable NR_SACK */
#define SCTPCTL_NRSACK_ENABLE_DESC      "Enable SCTP NR-SACK"
#define SCTPCTL_NRSACK_ENABLE_MIN       0
#define SCTPCTL_NRSACK_ENABLE_MAX       1
#define SCTPCTL_NRSACK_ENABLE_DEFAULT   0
 
/* pktdrop_enable: Enable SCTP Packet Drop Reports */
#define SCTPCTL_PKTDROP_ENABLE_DESC     "Enable SCTP PKTDROP"
#define SCTPCTL_PKTDROP_ENABLE_MIN      0
#define SCTPCTL_PKTDROP_ENABLE_MAX      1
#define SCTPCTL_PKTDROP_ENABLE_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
 
/* 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            0
#define SCTPCTL_MAXBURST_MAX            0xFFFFFFFF
#define SCTPCTL_MAXBURST_DEFAULT        SCTP_DEF_MAX_BURST
 
/* fr_maxburst: Default max burst for sctp endpoints when fast retransmitting */
#define SCTPCTL_FRMAXBURST_DESC         "Default max burst for SCTP endpoints when fast retransmitting"
#define SCTPCTL_FRMAXBURST_MIN          0
#define SCTPCTL_FRMAXBURST_MAX          0xFFFFFFFF
#define SCTPCTL_FRMAXBURST_DEFAULT      SCTP_DEF_FRMAX_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: Tunable 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: Tunable 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: Tunable for Scaling of number of chunks and messages */
#define SCTPCTL_CHUNKSCALE_DESC         "Tunable 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 ms */
#define SCTPCTL_DELAYED_SACK_TIME_DESC  "Default delayed SACK timer in ms"
#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 ms */
#define SCTPCTL_HEARTBEAT_INTERVAL_DESC "Default heartbeat interval in ms"
#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 seconds */
#define SCTPCTL_PMTU_RAISE_TIME_DESC    "Default PMTU raise timer in seconds"
#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 seconds */
#define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC        "Shutdown guard timer in seconds (0 means 5 times RTO.Max)"
#define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN         0
#define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX         0xFFFFFFFF
#define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT     0
 
/* secret_lifetime: Default secret lifetime in seconds */
#define SCTPCTL_SECRET_LIFETIME_DESC    "Default secret lifetime in seconds"
#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 ms */
#define SCTPCTL_RTO_MAX_DESC            "Default maximum retransmission timeout in ms"
#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 ms */
#define SCTPCTL_RTO_MIN_DESC            "Default minimum retransmission timeout in ms"
#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 ms */
#define SCTPCTL_RTO_INITIAL_DESC        "Default initial retransmission timeout in ms"
#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 ms */
#define SCTPCTL_INIT_RTO_MAX_DESC       "Default maximum retransmission timeout during association setup in ms"
#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 ms */
#define SCTPCTL_VALID_COOKIE_LIFE_DESC          "Default cookie lifetime in ms"
#define SCTPCTL_VALID_COOKIE_LIFE_MIN           SCTP_MIN_COOKIE_LIFE
#define SCTPCTL_VALID_COOKIE_LIFE_MAX           SCTP_MAX_COOKIE_LIFE
#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 retransmissions 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
 
/* path_pf_threshold: threshold for considering the path potentially failed */
#define SCTPCTL_PATH_PF_THRESHOLD_DESC          "Default potentially failed threshold"
#define SCTPCTL_PATH_PF_THRESHOLD_MIN           0
#define SCTPCTL_PATH_PF_THRESHOLD_MAX           0xFFFF
#define SCTPCTL_PATH_PF_THRESHOLD_DEFAULT       SCTPCTL_PATH_PF_THRESHOLD_MAX
 
/* 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
 
/* incoming_streams: Default number of incoming streams */
#define SCTPCTL_INCOMING_STREAMS_DESC   "Default number of incoming streams"
#define SCTPCTL_INCOMING_STREAMS_MIN    1
#define SCTPCTL_INCOMING_STREAMS_MAX    65535
#define SCTPCTL_INCOMING_STREAMS_DEFAULT SCTP_ISTREAM_INITIAL
 
/* 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 settings"
#define SCTPCTL_CMT_ON_OFF_MIN          SCTP_CMT_OFF
#define SCTPCTL_CMT_ON_OFF_MAX          SCTP_CMT_MAX
#define SCTPCTL_CMT_ON_OFF_DEFAULT      SCTP_CMT_OFF
 
/* 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
 
/* cwnd_maxburst: Use a CWND adjusting to implement maxburst */
#define SCTPCTL_CWND_MAXBURST_DESC      "Adjust congestion control window to limit maximum burst when sending"
#define SCTPCTL_CWND_MAXBURST_MIN       0
#define SCTPCTL_CWND_MAXBURST_MAX       1
#define SCTPCTL_CWND_MAXBURST_DEFAULT   1
 
/* 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       2
 
/* 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_HBMAX_BURST
 
/* abort_at_limit: When one-2-one hits qlimit abort */
#define SCTPCTL_ABORT_AT_LIMIT_DESC     "Abort when one-to-one hits qlimit"
#define SCTPCTL_ABORT_AT_LIMIT_MIN      0
#define SCTPCTL_ABORT_AT_LIMIT_MAX      1
#define SCTPCTL_ABORT_AT_LIMIT_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 retransmitted 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
 
/* RS - default stream scheduling module sysctl */
#define SCTPCTL_DEFAULT_SS_MODULE_DESC          "Default stream scheduling module"
#define SCTPCTL_DEFAULT_SS_MODULE_MIN           0
#define SCTPCTL_DEFAULT_SS_MODULE_MAX           5
#define SCTPCTL_DEFAULT_SS_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   0
 
/* 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    0
 
/* 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      0
 
/* 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_MAX
 
/* Enable sending of the NAT-FRIENDLY message */
#define SCTPCTL_NAT_FRIENDLY_INITS_DESC "Enable sending of the nat-friendly SCTP option on INITs"
#define SCTPCTL_NAT_FRIENDLY_INITS_MIN  0
#define SCTPCTL_NAT_FRIENDLY_INITS_MAX  1
#define SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT      SCTPCTL_NAT_FRIENDLY_INITS_MIN
 
/* Vtag time wait in seconds */
#define SCTPCTL_TIME_WAIT_DESC  "Vtag time wait time in seconds, 0 disables it"
#define SCTPCTL_TIME_WAIT_MIN   0
#define SCTPCTL_TIME_WAIT_MAX   0xffffffff
#define SCTPCTL_TIME_WAIT_DEFAULT       SCTP_TIME_WAIT
 
/* Enable Send/Receive buffer splitting */
#define SCTPCTL_BUFFER_SPLITTING_DESC           "Enable send/receive buffer splitting"
#define SCTPCTL_BUFFER_SPLITTING_MIN            0
#define SCTPCTL_BUFFER_SPLITTING_MAX            0x3
#define SCTPCTL_BUFFER_SPLITTING_DEFAULT        SCTPCTL_BUFFER_SPLITTING_MIN
 
/* Initial congestion window in MTUs */
#define SCTPCTL_INITIAL_CWND_DESC       "Defines the initial congestion window size in MTUs"
#define SCTPCTL_INITIAL_CWND_MIN        0
#define SCTPCTL_INITIAL_CWND_MAX        0xffffffff
#define SCTPCTL_INITIAL_CWND_DEFAULT    3
 
/* rttvar smooth avg for bw calc  */
#define SCTPCTL_RTTVAR_BW_DESC  "Shift amount DCCC uses for bw smoothing on rtt calc"
#define SCTPCTL_RTTVAR_BW_MIN   0
#define SCTPCTL_RTTVAR_BW_MAX   32
#define SCTPCTL_RTTVAR_BW_DEFAULT       4
 
/* rttvar smooth avg for bw calc  */
#define SCTPCTL_RTTVAR_RTT_DESC "Shift amount DCCC uses for rtt smoothing on rtt calc"
#define SCTPCTL_RTTVAR_RTT_MIN  0
#define SCTPCTL_RTTVAR_RTT_MAX  32
#define SCTPCTL_RTTVAR_RTT_DEFAULT      5
 
#define SCTPCTL_RTTVAR_EQRET_DESC       "Whether DCCC increases cwnd when the rtt and bw are unchanged"
#define SCTPCTL_RTTVAR_EQRET_MIN        0
#define SCTPCTL_RTTVAR_EQRET_MAX        1
#define SCTPCTL_RTTVAR_EQRET_DEFAULT    0
 
#define SCTPCTL_RTTVAR_STEADYS_DESC     "Number of identical bw measurements DCCC takes to try step down of cwnd"
#define SCTPCTL_RTTVAR_STEADYS_MIN      0
#define SCTPCTL_RTTVAR_STEADYS_MAX      0xFFFF
#define SCTPCTL_RTTVAR_STEADYS_DEFAULT  20      /* 0 means disable feature */
 
#define SCTPCTL_RTTVAR_DCCCECN_DESC     "Enable ECN for DCCC."
#define SCTPCTL_RTTVAR_DCCCECN_MIN      0
#define SCTPCTL_RTTVAR_DCCCECN_MAX      1
#define SCTPCTL_RTTVAR_DCCCECN_DEFAULT  1       /* 0 means disable feature */
 
#define SCTPCTL_BLACKHOLE_DESC          "Enable SCTP blackholing, see blackhole(4) for more details"
#define SCTPCTL_BLACKHOLE_MIN           0
#define SCTPCTL_BLACKHOLE_MAX           2
#define SCTPCTL_BLACKHOLE_DEFAULT       SCTPCTL_BLACKHOLE_MIN
 
/* sendall_limit: Maximum message with SCTP_SENDALL */
#define SCTPCTL_SENDALL_LIMIT_DESC      "Maximum size of a message send with SCTP_SENDALL"
#define SCTPCTL_SENDALL_LIMIT_MIN       0
#define SCTPCTL_SENDALL_LIMIT_MAX       0xFFFFFFFF
#define SCTPCTL_SENDALL_LIMIT_DEFAULT   1432
 
#define SCTPCTL_DIAG_INFO_CODE_DESC     "Diagnostic information error cause code"
#define SCTPCTL_DIAG_INFO_CODE_MIN      0
#define SCTPCTL_DIAG_INFO_CODE_MAX      65535
#define SCTPCTL_DIAG_INFO_CODE_DEFAULT  0
 
#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(_KERNEL) || defined(__Userspace__)
#if defined(SYSCTL_DECL)
SYSCTL_DECL(_net_inet_sctp);
#endif
 
void sctp_init_sysctls(void);
 
#endif                          /* _KERNEL */
#endif                          /* __sctp_sysctl_h__ */