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

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    1 /*-
    2  * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions are met:
    6  *
    7  * a) Redistributions of source code must retain the above copyright notice,
    8  *   this list of conditions and the following disclaimer.
    9  *
   10  * b) Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in
   12  *   the documentation and/or other materials provided with the distribution.
   13  *
   14  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   15  *    contributors may be used to endorse or promote products derived
   16  *    from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   28  * THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD: releng/8.0/sys/netinet/sctp_sysctl.c 195919 2009-07-28 15:07:41Z tuexen $");
   33 
   34 #include <netinet/sctp_os.h>
   35 #include <netinet/sctp.h>
   36 #include <netinet/sctp_constants.h>
   37 #include <netinet/sctp_sysctl.h>
   38 #include <netinet/sctp_pcb.h>
   39 #include <netinet/sctputil.h>
   40 #include <netinet/sctp_output.h>
   41 
   42 /*
   43  * sysctl tunable variables
   44  */
   45 
   46 void
   47 sctp_init_sysctls()
   48 {
   49         SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
   50         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
   51         SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
   52         SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
   53         SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
   54         SCTP_BASE_SYSCTL(sctp_ecn_nonce) = SCTPCTL_ECN_NONCE_DEFAULT;
   55         SCTP_BASE_SYSCTL(sctp_strict_sacks) = SCTPCTL_STRICT_SACKS_DEFAULT;
   56         SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) = SCTPCTL_LOOPBACK_NOCSUM_DEFAULT;
   57         SCTP_BASE_SYSCTL(sctp_strict_init) = SCTPCTL_STRICT_INIT_DEFAULT;
   58         SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
   59         SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
   60         SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
   61         SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
   62         SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
   63         SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
   64         SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
   65         SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
   66         SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
   67         SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
   68         SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
   69         SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
   70         SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
   71         SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
   72         SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
   73         SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
   74         SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
   75         SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
   76         SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
   77         SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
   78         SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
   79         SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
   80         SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
   81         SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
   82         SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
   83         SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
   84         /* EY */
   85         SCTP_BASE_SYSCTL(sctp_nr_sack_on_off) = SCTPCTL_NR_SACK_ON_OFF_DEFAULT;
   86         SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
   87         SCTP_BASE_SYSCTL(sctp_cmt_pf) = SCTPCTL_CMT_PF_DEFAULT;
   88         SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
   89         SCTP_BASE_SYSCTL(sctp_early_fr) = SCTPCTL_EARLY_FAST_RETRAN_DEFAULT;
   90         SCTP_BASE_SYSCTL(sctp_early_fr_msec) = SCTPCTL_EARLY_FAST_RETRAN_MSEC_DEFAULT;
   91         SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk) = SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT;
   92         SCTP_BASE_SYSCTL(sctp_auth_disable) = SCTPCTL_AUTH_DISABLE_DEFAULT;
   93         SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
   94         SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
   95         SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
   96         SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
   97         SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
   98         SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
   99         SCTP_BASE_SYSCTL(sctp_strict_data_order) = SCTPCTL_STRICT_DATA_ORDER_DEFAULT;
  100         SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
  101         SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
  102         SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
  103         /* JRS - Variable for default congestion control module */
  104         SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
  105         SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
  106         SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT;
  107         SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
  108         SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT;
  109 #if defined(SCTP_LOCAL_TRACE_BUF)
  110         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
  111 #endif
  112         SCTP_BASE_SYSCTL(sctp_udp_tunneling_for_client_enable) = SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DEFAULT;
  113         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
  114         SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
  115         SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
  116 #if defined(SCTP_DEBUG)
  117         SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
  118 #endif
  119 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  120         SCTP_BASE_SYSCTL(sctp_output_unlocked) = SCTPCTL_OUTPUT_UNLOCKED_DEFAULT;
  121 #endif
  122 }
  123 
  124 
  125 /* It returns an upper limit. No filtering is done here */
  126 static unsigned int
  127 number_of_addresses(struct sctp_inpcb *inp)
  128 {
  129         int cnt;
  130         struct sctp_vrf *vrf;
  131         struct sctp_ifn *sctp_ifn;
  132         struct sctp_ifa *sctp_ifa;
  133         struct sctp_laddr *laddr;
  134 
  135         cnt = 0;
  136         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
  137         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
  138                 return (0);
  139         }
  140         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
  141                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
  142                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
  143                                 if ((sctp_ifa->address.sa.sa_family == AF_INET) ||
  144                                     (sctp_ifa->address.sa.sa_family == AF_INET6)) {
  145                                         cnt++;
  146                                 }
  147                         }
  148                 }
  149         } else {
  150                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
  151                         if ((laddr->ifa->address.sa.sa_family == AF_INET) ||
  152                             (laddr->ifa->address.sa.sa_family == AF_INET6)) {
  153                                 cnt++;
  154                         }
  155                 }
  156         }
  157         return (cnt);
  158 }
  159 
  160 static int
  161 copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
  162 {
  163         struct sctp_ifn *sctp_ifn;
  164         struct sctp_ifa *sctp_ifa;
  165         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
  166         int ipv4_addr_legal, ipv6_addr_legal;
  167         struct sctp_vrf *vrf;
  168         struct xsctp_laddr xladdr;
  169         struct sctp_laddr *laddr;
  170         int error;
  171 
  172         /* Turn on all the appropriate scope */
  173         if (stcb) {
  174                 /* use association specific values */
  175                 loopback_scope = stcb->asoc.loopback_scope;
  176                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
  177                 local_scope = stcb->asoc.local_scope;
  178                 site_scope = stcb->asoc.site_scope;
  179         } else {
  180                 /* use generic values for endpoints */
  181                 loopback_scope = 1;
  182                 ipv4_local_scope = 1;
  183                 local_scope = 1;
  184                 site_scope = 1;
  185         }
  186 
  187         /* use only address families of interest */
  188         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
  189                 ipv6_addr_legal = 1;
  190                 if (SCTP_IPV6_V6ONLY(inp)) {
  191                         ipv4_addr_legal = 0;
  192                 } else {
  193                         ipv4_addr_legal = 1;
  194                 }
  195         } else {
  196                 ipv4_addr_legal = 1;
  197                 ipv6_addr_legal = 0;
  198         }
  199 
  200         error = 0;
  201 
  202         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
  203         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
  204                 SCTP_INP_RUNLOCK(inp);
  205                 SCTP_INP_INFO_RUNLOCK();
  206                 return (-1);
  207         }
  208         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
  209                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
  210                         if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn))
  211                                 /* Skip loopback if loopback_scope not set */
  212                                 continue;
  213                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
  214                                 if (stcb) {
  215                                         /*
  216                                          * ignore if blacklisted at
  217                                          * association level
  218                                          */
  219                                         if (sctp_is_addr_restricted(stcb, sctp_ifa))
  220                                                 continue;
  221                                 }
  222                                 switch (sctp_ifa->address.sa.sa_family) {
  223                                 case AF_INET:
  224                                         if (ipv4_addr_legal) {
  225                                                 struct sockaddr_in *sin;
  226 
  227                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
  228                                                 if (sin->sin_addr.s_addr == 0)
  229                                                         continue;
  230                                                 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr)))
  231                                                         continue;
  232                                         } else {
  233                                                 continue;
  234                                         }
  235                                         break;
  236 #ifdef INET6
  237                                 case AF_INET6:
  238                                         if (ipv6_addr_legal) {
  239                                                 struct sockaddr_in6 *sin6;
  240 
  241                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
  242                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
  243                                                         continue;
  244                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
  245                                                         if (local_scope == 0)
  246                                                                 continue;
  247                                                         if (sin6->sin6_scope_id == 0) {
  248                                                                 /*
  249                                                                  * bad link
  250                                                                  * local
  251                                                                  * address
  252                                                                  */
  253                                                                 if (sa6_recoverscope(sin6) != 0)
  254                                                                         continue;
  255                                                         }
  256                                                 }
  257                                                 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
  258                                                         continue;
  259                                         } else {
  260                                                 continue;
  261                                         }
  262                                         break;
  263 #endif
  264                                 default:
  265                                         continue;
  266                                 }
  267                                 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  268                                 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
  269                                 SCTP_INP_RUNLOCK(inp);
  270                                 SCTP_INP_INFO_RUNLOCK();
  271                                 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  272                                 if (error) {
  273                                         return (error);
  274                                 } else {
  275                                         SCTP_INP_INFO_RLOCK();
  276                                         SCTP_INP_RLOCK(inp);
  277                                 }
  278                         }
  279                 }
  280         } else {
  281                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
  282                         /* ignore if blacklisted at association level */
  283                         if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
  284                                 continue;
  285                         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  286                         memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
  287                         xladdr.start_time.tv_sec = (uint32_t) laddr->start_time.tv_sec;
  288                         xladdr.start_time.tv_usec = (uint32_t) laddr->start_time.tv_usec;
  289                         SCTP_INP_RUNLOCK(inp);
  290                         SCTP_INP_INFO_RUNLOCK();
  291                         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  292                         if (error) {
  293                                 return (error);
  294                         } else {
  295                                 SCTP_INP_INFO_RLOCK();
  296                                 SCTP_INP_RLOCK(inp);
  297                         }
  298                 }
  299         }
  300         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  301         xladdr.last = 1;
  302         SCTP_INP_RUNLOCK(inp);
  303         SCTP_INP_INFO_RUNLOCK();
  304         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  305 
  306         if (error) {
  307                 return (error);
  308         } else {
  309                 SCTP_INP_INFO_RLOCK();
  310                 SCTP_INP_RLOCK(inp);
  311                 return (0);
  312         }
  313 }
  314 
  315 /*
  316  * sysctl functions
  317  */
  318 static int
  319 sctp_assoclist(SYSCTL_HANDLER_ARGS)
  320 {
  321         unsigned int number_of_endpoints;
  322         unsigned int number_of_local_addresses;
  323         unsigned int number_of_associations;
  324         unsigned int number_of_remote_addresses;
  325         unsigned int n;
  326         int error;
  327         struct sctp_inpcb *inp;
  328         struct sctp_tcb *stcb;
  329         struct sctp_nets *net;
  330         struct xsctp_inpcb xinpcb;
  331         struct xsctp_tcb xstcb;
  332         struct xsctp_raddr xraddr;
  333 
  334         number_of_endpoints = 0;
  335         number_of_local_addresses = 0;
  336         number_of_associations = 0;
  337         number_of_remote_addresses = 0;
  338 
  339         SCTP_INP_INFO_RLOCK();
  340         if (req->oldptr == USER_ADDR_NULL) {
  341                 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  342                         SCTP_INP_RLOCK(inp);
  343                         number_of_endpoints++;
  344                         number_of_local_addresses += number_of_addresses(inp);
  345                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  346                                 number_of_associations++;
  347                                 number_of_local_addresses += number_of_addresses(inp);
  348                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  349                                         number_of_remote_addresses++;
  350                                 }
  351                         }
  352                         SCTP_INP_RUNLOCK(inp);
  353                 }
  354                 SCTP_INP_INFO_RUNLOCK();
  355                 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
  356                     (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
  357                     (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
  358                     (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
  359 
  360                 /* request some more memory than needed */
  361                 req->oldidx = (n + n / 8);
  362                 return 0;
  363         }
  364         if (req->newptr != USER_ADDR_NULL) {
  365                 SCTP_INP_INFO_RUNLOCK();
  366                 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
  367                 return EPERM;
  368         }
  369         LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  370                 SCTP_INP_RLOCK(inp);
  371                 xinpcb.last = 0;
  372                 xinpcb.local_port = ntohs(inp->sctp_lport);
  373                 xinpcb.flags = inp->sctp_flags;
  374                 xinpcb.features = inp->sctp_features;
  375                 xinpcb.total_sends = inp->total_sends;
  376                 xinpcb.total_recvs = inp->total_recvs;
  377                 xinpcb.total_nospaces = inp->total_nospaces;
  378                 xinpcb.fragmentation_point = inp->sctp_frag_point;
  379                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
  380                     (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
  381                         xinpcb.qlen = 0;
  382                         xinpcb.maxqlen = 0;
  383                 } else {
  384                         xinpcb.qlen = inp->sctp_socket->so_qlen;
  385                         xinpcb.maxqlen = inp->sctp_socket->so_qlimit;
  386                 }
  387                 SCTP_INP_INCR_REF(inp);
  388                 SCTP_INP_RUNLOCK(inp);
  389                 SCTP_INP_INFO_RUNLOCK();
  390                 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  391                 if (error) {
  392                         SCTP_INP_DECR_REF(inp);
  393                         return error;
  394                 }
  395                 SCTP_INP_INFO_RLOCK();
  396                 SCTP_INP_RLOCK(inp);
  397                 error = copy_out_local_addresses(inp, NULL, req);
  398                 if (error) {
  399                         SCTP_INP_DECR_REF(inp);
  400                         return error;
  401                 }
  402                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  403                         SCTP_TCB_LOCK(stcb);
  404                         atomic_add_int(&stcb->asoc.refcnt, 1);
  405                         SCTP_TCB_UNLOCK(stcb);
  406                         xstcb.last = 0;
  407                         xstcb.local_port = ntohs(inp->sctp_lport);
  408                         xstcb.remote_port = ntohs(stcb->rport);
  409                         if (stcb->asoc.primary_destination != NULL)
  410                                 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
  411                         xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
  412                         xstcb.state = SCTP_GET_STATE(&stcb->asoc);      /* FIXME */
  413                         /* 7.0 does not support these */
  414                         xstcb.assoc_id = sctp_get_associd(stcb);
  415                         xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
  416                         xstcb.in_streams = stcb->asoc.streamincnt;
  417                         xstcb.out_streams = stcb->asoc.streamoutcnt;
  418                         xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
  419                         xstcb.primary_process = 0;      /* not really supported
  420                                                          * yet */
  421                         xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
  422                         xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
  423                         xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
  424                         xstcb.start_time.tv_sec = (uint32_t) stcb->asoc.start_time.tv_sec;
  425                         xstcb.start_time.tv_usec = (uint32_t) stcb->asoc.start_time.tv_usec;
  426                         xstcb.discontinuity_time.tv_sec = (uint32_t) stcb->asoc.discontinuity_time.tv_sec;
  427                         xstcb.discontinuity_time.tv_usec = (uint32_t) stcb->asoc.discontinuity_time.tv_usec;
  428                         xstcb.total_sends = stcb->total_sends;
  429                         xstcb.total_recvs = stcb->total_recvs;
  430                         xstcb.local_tag = stcb->asoc.my_vtag;
  431                         xstcb.remote_tag = stcb->asoc.peer_vtag;
  432                         xstcb.initial_tsn = stcb->asoc.init_seq_number;
  433                         xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
  434                         xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
  435                         xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
  436                         xstcb.mtu = stcb->asoc.smallest_mtu;
  437                         xstcb.refcnt = stcb->asoc.refcnt;
  438                         SCTP_INP_RUNLOCK(inp);
  439                         SCTP_INP_INFO_RUNLOCK();
  440                         error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  441                         if (error) {
  442                                 SCTP_INP_DECR_REF(inp);
  443                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  444                                 return error;
  445                         }
  446                         SCTP_INP_INFO_RLOCK();
  447                         SCTP_INP_RLOCK(inp);
  448                         error = copy_out_local_addresses(inp, stcb, req);
  449                         if (error) {
  450                                 SCTP_INP_DECR_REF(inp);
  451                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  452                                 return error;
  453                         }
  454                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  455                                 xraddr.last = 0;
  456                                 xraddr.address = net->ro._l_addr;
  457                                 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
  458                                 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
  459                                 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
  460                                 xraddr.rto = net->RTO;
  461                                 xraddr.max_path_rtx = net->failure_threshold;
  462                                 xraddr.rtx = net->marked_retrans;
  463                                 xraddr.error_counter = net->error_count;
  464                                 xraddr.cwnd = net->cwnd;
  465                                 xraddr.flight_size = net->flight_size;
  466                                 xraddr.mtu = net->mtu;
  467                                 xraddr.rtt = net->rtt;
  468                                 xraddr.start_time.tv_sec = (uint32_t) net->start_time.tv_sec;
  469                                 xraddr.start_time.tv_usec = (uint32_t) net->start_time.tv_usec;
  470                                 SCTP_INP_RUNLOCK(inp);
  471                                 SCTP_INP_INFO_RUNLOCK();
  472                                 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  473                                 if (error) {
  474                                         SCTP_INP_DECR_REF(inp);
  475                                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  476                                         return error;
  477                                 }
  478                                 SCTP_INP_INFO_RLOCK();
  479                                 SCTP_INP_RLOCK(inp);
  480                         }
  481                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  482                         memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
  483                         xraddr.last = 1;
  484                         SCTP_INP_RUNLOCK(inp);
  485                         SCTP_INP_INFO_RUNLOCK();
  486                         error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  487                         if (error) {
  488                                 SCTP_INP_DECR_REF(inp);
  489                                 return error;
  490                         }
  491                         SCTP_INP_INFO_RLOCK();
  492                         SCTP_INP_RLOCK(inp);
  493                 }
  494                 SCTP_INP_DECR_REF(inp);
  495                 SCTP_INP_RUNLOCK(inp);
  496                 SCTP_INP_INFO_RUNLOCK();
  497                 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
  498                 xstcb.last = 1;
  499                 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  500                 if (error) {
  501                         return error;
  502                 }
  503                 SCTP_INP_INFO_RLOCK();
  504         }
  505         SCTP_INP_INFO_RUNLOCK();
  506 
  507         memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
  508         xinpcb.last = 1;
  509         error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  510         return error;
  511 }
  512 
  513 
  514 #define RANGECHK(var, min, max) \
  515         if ((var) < (min)) { (var) = (min); } \
  516         else if ((var) > (max)) { (var) = (max); }
  517 
  518 static int
  519 sysctl_sctp_udp_tunneling_check(SYSCTL_HANDLER_ARGS)
  520 {
  521         int error;
  522         uint32_t old_sctp_udp_tunneling_port;
  523 
  524         SCTP_INP_INFO_RLOCK();
  525         old_sctp_udp_tunneling_port = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
  526         SCTP_INP_INFO_RUNLOCK();
  527         error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
  528         if (error == 0) {
  529                 RANGECHK(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), SCTPCTL_UDP_TUNNELING_PORT_MIN, SCTPCTL_UDP_TUNNELING_PORT_MAX);
  530                 if (old_sctp_udp_tunneling_port == SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
  531                         error = 0;
  532                         goto out;
  533                 }
  534                 SCTP_INP_INFO_WLOCK();
  535                 if (old_sctp_udp_tunneling_port) {
  536                         sctp_over_udp_stop();
  537                 }
  538                 if (SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
  539                         if (sctp_over_udp_start()) {
  540                                 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = 0;
  541                         }
  542                 }
  543                 SCTP_INP_INFO_WUNLOCK();
  544         }
  545 out:
  546         return (error);
  547 }
  548 
  549 
  550 static int
  551 sysctl_sctp_check(SYSCTL_HANDLER_ARGS)
  552 {
  553         int error;
  554 
  555         error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
  556         if (error == 0) {
  557                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sendspace), SCTPCTL_MAXDGRAM_MIN, SCTPCTL_MAXDGRAM_MAX);
  558                 RANGECHK(SCTP_BASE_SYSCTL(sctp_recvspace), SCTPCTL_RECVSPACE_MIN, SCTPCTL_RECVSPACE_MAX);
  559 #if defined(__FreeBSD__) || defined(SCTP_APPLE_AUTO_ASCONF)
  560                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auto_asconf), SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
  561 #endif
  562                 RANGECHK(SCTP_BASE_SYSCTL(sctp_ecn_enable), SCTPCTL_ECN_ENABLE_MIN, SCTPCTL_ECN_ENABLE_MAX);
  563                 RANGECHK(SCTP_BASE_SYSCTL(sctp_ecn_nonce), SCTPCTL_ECN_NONCE_MIN, SCTPCTL_ECN_NONCE_MAX);
  564                 RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_sacks), SCTPCTL_STRICT_SACKS_MIN, SCTPCTL_STRICT_SACKS_MAX);
  565                 RANGECHK(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), SCTPCTL_LOOPBACK_NOCSUM_MIN, SCTPCTL_LOOPBACK_NOCSUM_MAX);
  566                 RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_init), SCTPCTL_STRICT_INIT_MIN, SCTPCTL_STRICT_INIT_MAX);
  567                 RANGECHK(SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), SCTPCTL_PEER_CHKOH_MIN, SCTPCTL_PEER_CHKOH_MAX);
  568                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_burst_default), SCTPCTL_MAXBURST_MIN, SCTPCTL_MAXBURST_MAX);
  569                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), SCTPCTL_MAXCHUNKS_MIN, SCTPCTL_MAXCHUNKS_MAX);
  570                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hashtblsize), SCTPCTL_TCBHASHSIZE_MIN, SCTPCTL_TCBHASHSIZE_MAX);
  571                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pcbtblsize), SCTPCTL_PCBHASHSIZE_MIN, SCTPCTL_PCBHASHSIZE_MAX);
  572                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_split_point), SCTPCTL_MIN_SPLIT_POINT_MIN, SCTPCTL_MIN_SPLIT_POINT_MAX);
  573                 RANGECHK(SCTP_BASE_SYSCTL(sctp_chunkscale), SCTPCTL_CHUNKSCALE_MIN, SCTPCTL_CHUNKSCALE_MAX);
  574                 RANGECHK(SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), SCTPCTL_DELAYED_SACK_TIME_MIN, SCTPCTL_DELAYED_SACK_TIME_MAX);
  575                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sack_freq_default), SCTPCTL_SACK_FREQ_MIN, SCTPCTL_SACK_FREQ_MAX);
  576                 RANGECHK(SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), SCTPCTL_SYS_RESOURCE_MIN, SCTPCTL_SYS_RESOURCE_MAX);
  577                 RANGECHK(SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), SCTPCTL_ASOC_RESOURCE_MIN, SCTPCTL_ASOC_RESOURCE_MAX);
  578                 RANGECHK(SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), SCTPCTL_HEARTBEAT_INTERVAL_MIN, SCTPCTL_HEARTBEAT_INTERVAL_MAX);
  579                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), SCTPCTL_PMTU_RAISE_TIME_MIN, SCTPCTL_PMTU_RAISE_TIME_MAX);
  580                 RANGECHK(SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), SCTPCTL_SHUTDOWN_GUARD_TIME_MIN, SCTPCTL_SHUTDOWN_GUARD_TIME_MAX);
  581                 RANGECHK(SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), SCTPCTL_SECRET_LIFETIME_MIN, SCTPCTL_SECRET_LIFETIME_MAX);
  582                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_max_default), SCTPCTL_RTO_MAX_MIN, SCTPCTL_RTO_MAX_MAX);
  583                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_min_default), SCTPCTL_RTO_MIN_MIN, SCTPCTL_RTO_MIN_MAX);
  584                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_initial_default), SCTPCTL_RTO_INITIAL_MIN, SCTPCTL_RTO_INITIAL_MAX);
  585                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rto_max_default), SCTPCTL_INIT_RTO_MAX_MIN, SCTPCTL_INIT_RTO_MAX_MAX);
  586                 RANGECHK(SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), SCTPCTL_VALID_COOKIE_LIFE_MIN, SCTPCTL_VALID_COOKIE_LIFE_MAX);
  587                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), SCTPCTL_INIT_RTX_MAX_MIN, SCTPCTL_INIT_RTX_MAX_MAX);
  588                 RANGECHK(SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), SCTPCTL_ASSOC_RTX_MAX_MIN, SCTPCTL_ASSOC_RTX_MAX_MAX);
  589                 RANGECHK(SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), SCTPCTL_PATH_RTX_MAX_MIN, SCTPCTL_PATH_RTX_MAX_MAX);
  590                 RANGECHK(SCTP_BASE_SYSCTL(sctp_add_more_threshold), SCTPCTL_ADD_MORE_ON_OUTPUT_MIN, SCTPCTL_ADD_MORE_ON_OUTPUT_MAX);
  591                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), SCTPCTL_OUTGOING_STREAMS_MIN, SCTPCTL_OUTGOING_STREAMS_MAX);
  592                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_on_off), SCTPCTL_CMT_ON_OFF_MIN, SCTPCTL_CMT_ON_OFF_MAX);
  593                 /* EY */
  594                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), SCTPCTL_NR_SACK_ON_OFF_MIN, SCTPCTL_NR_SACK_ON_OFF_MAX);
  595                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_use_dac), SCTPCTL_CMT_USE_DAC_MIN, SCTPCTL_CMT_USE_DAC_MAX);
  596                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_pf), SCTPCTL_CMT_PF_MIN, SCTPCTL_CMT_PF_MAX);
  597                 RANGECHK(SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), SCTPCTL_CWND_MAXBURST_MIN, SCTPCTL_CWND_MAXBURST_MAX);
  598                 RANGECHK(SCTP_BASE_SYSCTL(sctp_early_fr), SCTPCTL_EARLY_FAST_RETRAN_MIN, SCTPCTL_EARLY_FAST_RETRAN_MAX);
  599                 RANGECHK(SCTP_BASE_SYSCTL(sctp_early_fr_msec), SCTPCTL_EARLY_FAST_RETRAN_MSEC_MIN, SCTPCTL_EARLY_FAST_RETRAN_MSEC_MAX);
  600                 RANGECHK(SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), SCTPCTL_ASCONF_AUTH_NOCHK_MIN, SCTPCTL_ASCONF_AUTH_NOCHK_MAX);
  601                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auth_disable), SCTPCTL_AUTH_DISABLE_MIN, SCTPCTL_AUTH_DISABLE_MAX);
  602                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nat_friendly), SCTPCTL_NAT_FRIENDLY_MIN, SCTPCTL_NAT_FRIENDLY_MAX);
  603                 RANGECHK(SCTP_BASE_SYSCTL(sctp_L2_abc_variable), SCTPCTL_ABC_L_VAR_MIN, SCTPCTL_ABC_L_VAR_MAX);
  604                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), SCTPCTL_MAX_CHAINED_MBUFS_MIN, SCTPCTL_MAX_CHAINED_MBUFS_MAX);
  605                 RANGECHK(SCTP_BASE_SYSCTL(sctp_do_drain), SCTPCTL_DO_SCTP_DRAIN_MIN, SCTPCTL_DO_SCTP_DRAIN_MAX);
  606                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hb_maxburst), SCTPCTL_HB_MAX_BURST_MIN, SCTPCTL_HB_MAX_BURST_MAX);
  607                 RANGECHK(SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), SCTPCTL_ABORT_AT_LIMIT_MIN, SCTPCTL_ABORT_AT_LIMIT_MAX);
  608                 RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_data_order), SCTPCTL_STRICT_DATA_ORDER_MIN, SCTPCTL_STRICT_DATA_ORDER_MAX);
  609                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_residual), SCTPCTL_MIN_RESIDUAL_MIN, SCTPCTL_MIN_RESIDUAL_MAX);
  610                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_retran_chunk), SCTPCTL_MAX_RETRAN_CHUNK_MIN, SCTPCTL_MAX_RETRAN_CHUNK_MAX);
  611                 RANGECHK(SCTP_BASE_SYSCTL(sctp_logging_level), SCTPCTL_LOGGING_LEVEL_MIN, SCTPCTL_LOGGING_LEVEL_MAX);
  612                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_cc_module), SCTPCTL_DEFAULT_CC_MODULE_MIN, SCTPCTL_DEFAULT_CC_MODULE_MAX);
  613                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_frag_interleave), SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX);
  614                 RANGECHK(SCTP_BASE_SYSCTL(sctp_vtag_time_wait), SCTPCTL_TIME_WAIT_MIN, SCTPCTL_TIME_WAIT_MAX);
  615 
  616 #if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_BASE)
  617                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_base), SCTPCTL_MOBILITY_BASE_MIN, SCTPCTL_MOBILITY_BASE_MAX);
  618 #endif
  619 #if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_FASTHANDOFF)
  620                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), SCTPCTL_MOBILITY_FASTHANDOFF_MIN, SCTPCTL_MOBILITY_FASTHANDOFF_MAX);
  621 #endif
  622                 RANGECHK(SCTP_BASE_SYSCTL(sctp_udp_tunneling_for_client_enable), SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MIN, SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MAX);
  623                 RANGECHK(SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN, SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX);
  624                 RANGECHK(SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), SCTPCTL_NAT_FRIENDLY_INITS_MIN, SCTPCTL_NAT_FRIENDLY_INITS_MAX);
  625 
  626 #ifdef SCTP_DEBUG
  627                 RANGECHK(SCTP_BASE_SYSCTL(sctp_debug_on), SCTPCTL_DEBUG_MIN, SCTPCTL_DEBUG_MAX);
  628 #endif
  629 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  630                 RANGECHK(SCTP_BASE_SYSCTL(sctp_output_unlocked), SCTPCTL_OUTPUT_UNLOCKED_MIN, SCTPCTL_OUTPUT_UNLOCKED_MAX);
  631 #endif
  632         }
  633         return (error);
  634 }
  635 
  636 
  637 
  638 #if defined(SCTP_LOCAL_TRACE_BUF)
  639 static int
  640 sysctl_sctp_cleartrace(SYSCTL_HANDLER_ARGS)
  641 {
  642         int error = 0;
  643 
  644         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
  645         return (error);
  646 }
  647 
  648 #endif
  649 
  650 
  651 /*
  652  * sysctl definitions
  653  */
  654 
  655 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sendspace, CTLTYPE_INT | CTLFLAG_RW,
  656     &SCTP_BASE_SYSCTL(sctp_sendspace), 0, sysctl_sctp_check, "IU",
  657     SCTPCTL_MAXDGRAM_DESC);
  658 
  659 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, recvspace, CTLTYPE_INT | CTLFLAG_RW,
  660     &SCTP_BASE_SYSCTL(sctp_recvspace), 0, sysctl_sctp_check, "IU",
  661     SCTPCTL_RECVSPACE_DESC);
  662 
  663 #if defined(__FreeBSD__) || defined(SCTP_APPLE_AUTO_ASCONF)
  664 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auto_asconf, CTLTYPE_INT | CTLFLAG_RW,
  665     &SCTP_BASE_SYSCTL(sctp_auto_asconf), 0, sysctl_sctp_check, "IU",
  666     SCTPCTL_AUTOASCONF_DESC);
  667 #endif
  668 
  669 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, ecn_enable, CTLTYPE_INT | CTLFLAG_RW,
  670     &SCTP_BASE_SYSCTL(sctp_ecn_enable), 0, sysctl_sctp_check, "IU",
  671     SCTPCTL_ECN_ENABLE_DESC);
  672 
  673 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, ecn_nonce, CTLTYPE_INT | CTLFLAG_RW,
  674     &SCTP_BASE_SYSCTL(sctp_ecn_nonce), 0, sysctl_sctp_check, "IU",
  675     SCTPCTL_ECN_NONCE_DESC);
  676 
  677 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_sacks, CTLTYPE_INT | CTLFLAG_RW,
  678     &SCTP_BASE_SYSCTL(sctp_strict_sacks), 0, sysctl_sctp_check, "IU",
  679     SCTPCTL_STRICT_SACKS_DESC);
  680 
  681 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, loopback_nocsum, CTLTYPE_INT | CTLFLAG_RW,
  682     &SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), 0, sysctl_sctp_check, "IU",
  683     SCTPCTL_LOOPBACK_NOCSUM_DESC);
  684 
  685 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_init, CTLTYPE_INT | CTLFLAG_RW,
  686     &SCTP_BASE_SYSCTL(sctp_strict_init), 0, sysctl_sctp_check, "IU",
  687     SCTPCTL_STRICT_INIT_DESC);
  688 
  689 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, peer_chkoh, CTLTYPE_INT | CTLFLAG_RW,
  690     &SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), 0, sysctl_sctp_check, "IU",
  691     SCTPCTL_PEER_CHKOH_DESC);
  692 
  693 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, maxburst, CTLTYPE_INT | CTLFLAG_RW,
  694     &SCTP_BASE_SYSCTL(sctp_max_burst_default), 0, sysctl_sctp_check, "IU",
  695     SCTPCTL_MAXBURST_DESC);
  696 
  697 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, maxchunks, CTLTYPE_INT | CTLFLAG_RW,
  698     &SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), 0, sysctl_sctp_check, "IU",
  699     SCTPCTL_MAXCHUNKS_DESC);
  700 
  701 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, tcbhashsize, CTLTYPE_INT | CTLFLAG_RW,
  702     &SCTP_BASE_SYSCTL(sctp_hashtblsize), 0, sysctl_sctp_check, "IU",
  703     SCTPCTL_TCBHASHSIZE_DESC);
  704 
  705 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, pcbhashsize, CTLTYPE_INT | CTLFLAG_RW,
  706     &SCTP_BASE_SYSCTL(sctp_pcbtblsize), 0, sysctl_sctp_check, "IU",
  707     SCTPCTL_PCBHASHSIZE_DESC);
  708 
  709 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, min_split_point, CTLTYPE_INT | CTLFLAG_RW,
  710     &SCTP_BASE_SYSCTL(sctp_min_split_point), 0, sysctl_sctp_check, "IU",
  711     SCTPCTL_MIN_SPLIT_POINT_DESC);
  712 
  713 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, chunkscale, CTLTYPE_INT | CTLFLAG_RW,
  714     &SCTP_BASE_SYSCTL(sctp_chunkscale), 0, sysctl_sctp_check, "IU",
  715     SCTPCTL_CHUNKSCALE_DESC);
  716 
  717 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, delayed_sack_time, CTLTYPE_INT | CTLFLAG_RW,
  718     &SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), 0, sysctl_sctp_check, "IU",
  719     SCTPCTL_DELAYED_SACK_TIME_DESC);
  720 
  721 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sack_freq, CTLTYPE_INT | CTLFLAG_RW,
  722     &SCTP_BASE_SYSCTL(sctp_sack_freq_default), 0, sysctl_sctp_check, "IU",
  723     SCTPCTL_SACK_FREQ_DESC);
  724 
  725 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sys_resource, CTLTYPE_INT | CTLFLAG_RW,
  726     &SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), 0, sysctl_sctp_check, "IU",
  727     SCTPCTL_SYS_RESOURCE_DESC);
  728 
  729 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asoc_resource, CTLTYPE_INT | CTLFLAG_RW,
  730     &SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), 0, sysctl_sctp_check, "IU",
  731     SCTPCTL_ASOC_RESOURCE_DESC);
  732 
  733 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, heartbeat_interval, CTLTYPE_INT | CTLFLAG_RW,
  734     &SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), 0, sysctl_sctp_check, "IU",
  735     SCTPCTL_HEARTBEAT_INTERVAL_DESC);
  736 
  737 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, pmtu_raise_time, CTLTYPE_INT | CTLFLAG_RW,
  738     &SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), 0, sysctl_sctp_check, "IU",
  739     SCTPCTL_PMTU_RAISE_TIME_DESC);
  740 
  741 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, shutdown_guard_time, CTLTYPE_INT | CTLFLAG_RW,
  742     &SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), 0, sysctl_sctp_check, "IU",
  743     SCTPCTL_SHUTDOWN_GUARD_TIME_DESC);
  744 
  745 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, secret_lifetime, CTLTYPE_INT | CTLFLAG_RW,
  746     &SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), 0, sysctl_sctp_check, "IU",
  747     SCTPCTL_SECRET_LIFETIME_DESC);
  748 
  749 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_max, CTLTYPE_INT | CTLFLAG_RW,
  750     &SCTP_BASE_SYSCTL(sctp_rto_max_default), 0, sysctl_sctp_check, "IU",
  751     SCTPCTL_RTO_MAX_DESC);
  752 
  753 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_min, CTLTYPE_INT | CTLFLAG_RW,
  754     &SCTP_BASE_SYSCTL(sctp_rto_min_default), 0, sysctl_sctp_check, "IU",
  755     SCTPCTL_RTO_MIN_DESC);
  756 
  757 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_initial, CTLTYPE_INT | CTLFLAG_RW,
  758     &SCTP_BASE_SYSCTL(sctp_rto_initial_default), 0, sysctl_sctp_check, "IU",
  759     SCTPCTL_RTO_INITIAL_DESC);
  760 
  761 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, init_rto_max, CTLTYPE_INT | CTLFLAG_RW,
  762     &SCTP_BASE_SYSCTL(sctp_init_rto_max_default), 0, sysctl_sctp_check, "IU",
  763     SCTPCTL_INIT_RTO_MAX_DESC);
  764 
  765 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, valid_cookie_life, CTLTYPE_INT | CTLFLAG_RW,
  766     &SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), 0, sysctl_sctp_check, "IU",
  767     SCTPCTL_VALID_COOKIE_LIFE_DESC);
  768 
  769 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, init_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
  770     &SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), 0, sysctl_sctp_check, "IU",
  771     SCTPCTL_INIT_RTX_MAX_DESC);
  772 
  773 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoc_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
  774     &SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), 0, sysctl_sctp_check, "IU",
  775     SCTPCTL_ASSOC_RTX_MAX_DESC);
  776 
  777 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, path_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
  778     &SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), 0, sysctl_sctp_check, "IU",
  779     SCTPCTL_PATH_RTX_MAX_DESC);
  780 
  781 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, add_more_on_output, CTLTYPE_INT | CTLFLAG_RW,
  782     &SCTP_BASE_SYSCTL(sctp_add_more_threshold), 0, sysctl_sctp_check, "IU",
  783     SCTPCTL_ADD_MORE_ON_OUTPUT_DESC);
  784 
  785 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, outgoing_streams, CTLTYPE_INT | CTLFLAG_RW,
  786     &SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), 0, sysctl_sctp_check, "IU",
  787     SCTPCTL_OUTGOING_STREAMS_DESC);
  788 
  789 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_on_off, CTLTYPE_INT | CTLFLAG_RW,
  790     &SCTP_BASE_SYSCTL(sctp_cmt_on_off), 0, sysctl_sctp_check, "IU",
  791     SCTPCTL_CMT_ON_OFF_DESC);
  792 
  793 /* EY */
  794 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, nr_sack_on_off, CTLTYPE_INT | CTLFLAG_RW,
  795     &SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), 0, sysctl_sctp_check, "IU",
  796     SCTPCTL_NR_SACK_ON_OFF_DESC);
  797 
  798 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_use_dac, CTLTYPE_INT | CTLFLAG_RW,
  799     &SCTP_BASE_SYSCTL(sctp_cmt_use_dac), 0, sysctl_sctp_check, "IU",
  800     SCTPCTL_CMT_USE_DAC_DESC);
  801 
  802 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_pf, CTLTYPE_INT | CTLFLAG_RW,
  803     &SCTP_BASE_SYSCTL(sctp_cmt_pf), 0, sysctl_sctp_check, "IU",
  804     SCTPCTL_CMT_PF_DESC);
  805 
  806 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cwnd_maxburst, CTLTYPE_INT | CTLFLAG_RW,
  807     &SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), 0, sysctl_sctp_check, "IU",
  808     SCTPCTL_CWND_MAXBURST_DESC);
  809 
  810 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, early_fast_retran, CTLTYPE_INT | CTLFLAG_RW,
  811     &SCTP_BASE_SYSCTL(sctp_early_fr), 0, sysctl_sctp_check, "IU",
  812     SCTPCTL_EARLY_FAST_RETRAN_DESC);
  813 
  814 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, early_fast_retran_msec, CTLTYPE_INT | CTLFLAG_RW,
  815     &SCTP_BASE_SYSCTL(sctp_early_fr_msec), 0, sysctl_sctp_check, "IU",
  816     SCTPCTL_EARLY_FAST_RETRAN_MSEC_DESC);
  817 
  818 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_auth_nochk, CTLTYPE_INT | CTLFLAG_RW,
  819     &SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), 0, sysctl_sctp_check, "IU",
  820     SCTPCTL_ASCONF_AUTH_NOCHK_DESC);
  821 
  822 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_disable, CTLTYPE_INT | CTLFLAG_RW,
  823     &SCTP_BASE_SYSCTL(sctp_auth_disable), 0, sysctl_sctp_check, "IU",
  824     SCTPCTL_AUTH_DISABLE_DESC);
  825 
  826 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, nat_friendly, CTLTYPE_INT | CTLFLAG_RW,
  827     &SCTP_BASE_SYSCTL(sctp_nat_friendly), 0, sysctl_sctp_check, "IU",
  828     SCTPCTL_NAT_FRIENDLY_DESC);
  829 
  830 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, abc_l_var, CTLTYPE_INT | CTLFLAG_RW,
  831     &SCTP_BASE_SYSCTL(sctp_L2_abc_variable), 0, sysctl_sctp_check, "IU",
  832     SCTPCTL_ABC_L_VAR_DESC);
  833 
  834 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, max_chained_mbufs, CTLTYPE_INT | CTLFLAG_RW,
  835     &SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), 0, sysctl_sctp_check, "IU",
  836     SCTPCTL_MAX_CHAINED_MBUFS_DESC);
  837 
  838 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, do_sctp_drain, CTLTYPE_INT | CTLFLAG_RW,
  839     &SCTP_BASE_SYSCTL(sctp_do_drain), 0, sysctl_sctp_check, "IU",
  840     SCTPCTL_DO_SCTP_DRAIN_DESC);
  841 
  842 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, hb_max_burst, CTLTYPE_INT | CTLFLAG_RW,
  843     &SCTP_BASE_SYSCTL(sctp_hb_maxburst), 0, sysctl_sctp_check, "IU",
  844     SCTPCTL_HB_MAX_BURST_DESC);
  845 
  846 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, abort_at_limit, CTLTYPE_INT | CTLFLAG_RW,
  847     &SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), 0, sysctl_sctp_check, "IU",
  848     SCTPCTL_ABORT_AT_LIMIT_DESC);
  849 
  850 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_data_order, CTLTYPE_INT | CTLFLAG_RW,
  851     &SCTP_BASE_SYSCTL(sctp_strict_data_order), 0, sysctl_sctp_check, "IU",
  852     SCTPCTL_STRICT_DATA_ORDER_DESC);
  853 
  854 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, min_residual, CTLTYPE_INT | CTLFLAG_RW,
  855     &SCTP_BASE_SYSCTL(sctp_min_residual), 0, sysctl_sctp_check, "IU",
  856     SCTPCTL_MIN_RESIDUAL_DESC);
  857 
  858 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, max_retran_chunk, CTLTYPE_INT | CTLFLAG_RW,
  859     &SCTP_BASE_SYSCTL(sctp_max_retran_chunk), 0, sysctl_sctp_check, "IU",
  860     SCTPCTL_MAX_RETRAN_CHUNK_DESC);
  861 
  862 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log_level, CTLTYPE_INT | CTLFLAG_RW,
  863     &SCTP_BASE_SYSCTL(sctp_logging_level), 0, sysctl_sctp_check, "IU",
  864     SCTPCTL_LOGGING_LEVEL_DESC);
  865 
  866 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, default_cc_module, CTLTYPE_INT | CTLFLAG_RW,
  867     &SCTP_BASE_SYSCTL(sctp_default_cc_module), 0, sysctl_sctp_check, "IU",
  868     SCTPCTL_DEFAULT_CC_MODULE_DESC);
  869 
  870 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, default_frag_interleave, CTLTYPE_INT | CTLFLAG_RW,
  871     &SCTP_BASE_SYSCTL(sctp_default_frag_interleave), 0, sysctl_sctp_check, "IU",
  872     SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC);
  873 
  874 #if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_BASE)
  875 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mobility_base, CTLTYPE_INT | CTLFLAG_RW,
  876     &SCTP_BASE_SYSCTL(sctp_mobility_base), 0, sysctl_sctp_check, "IU",
  877     SCTPCTL_MOBILITY_BASE_DESC);
  878 #endif
  879 
  880 #if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_FASTHANDOFF)
  881 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mobility_fasthandoff, CTLTYPE_INT | CTLFLAG_RW,
  882     &SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), 0, sysctl_sctp_check, "IU",
  883     SCTPCTL_MOBILITY_FASTHANDOFF_DESC);
  884 #endif
  885 
  886 #if defined(SCTP_LOCAL_TRACE_BUF)
  887 SYSCTL_STRUCT(_net_inet_sctp, OID_AUTO, log, CTLFLAG_RD,
  888     &SCTP_BASE_SYSCTL(sctp_log), sctp_log,
  889     "SCTP logging (struct sctp_log)");
  890 
  891 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLTYPE_OPAQUE | CTLFLAG_RW,
  892     &SCTP_BASE_SYSCTL(sctp_log), 0, sysctl_sctp_cleartrace, "IU",
  893     "Clear SCTP Logging buffer");
  894 
  895 
  896 
  897 #endif
  898 
  899 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_for_client_enable, CTLTYPE_INT | CTLFLAG_RW,
  900     &SCTP_BASE_SYSCTL(sctp_udp_tunneling_for_client_enable), 0, sysctl_sctp_check, "IU",
  901     SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DESC);
  902 
  903 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLTYPE_INT | CTLFLAG_RW,
  904     &SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), 0, sysctl_sctp_udp_tunneling_check, "IU",
  905     SCTPCTL_UDP_TUNNELING_PORT_DESC);
  906 
  907 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, enable_sack_immediately, CTLTYPE_INT | CTLFLAG_RW,
  908     &SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), 0, sysctl_sctp_check, "IU",
  909     SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC);
  910 
  911 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, nat_friendly_init, CTLTYPE_INT | CTLFLAG_RW,
  912     &SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), 0, sysctl_sctp_check, "IU",
  913     SCTPCTL_NAT_FRIENDLY_INITS_DESC);
  914 
  915 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, vtag_time_wait, CTLTYPE_INT | CTLFLAG_RW,
  916     &SCTP_BASE_SYSCTL(sctp_vtag_time_wait), 0, sysctl_sctp_check, "IU",
  917     SCTPCTL_TIME_WAIT_DESC);
  918 
  919 #ifdef SCTP_DEBUG
  920 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, debug, CTLTYPE_INT | CTLFLAG_RW,
  921     &SCTP_BASE_SYSCTL(sctp_debug_on), 0, sysctl_sctp_check, "IU",
  922     SCTPCTL_DEBUG_DESC);
  923 #endif                          /* SCTP_DEBUG */
  924 
  925 
  926 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  927 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, output_unlocked, CTLTYPE_INT | CTLFLAG_RW,
  928     &SCTP_BASE_SYSCTL(sctp_output_unlocked), 0, sysctl_sctp_check, "IU",
  929     SCTPCTL_OUTPUT_UNLOCKED_DESC);
  930 #endif
  931 
  932 SYSCTL_STRUCT(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_RW,
  933     &SCTP_BASE_STATS, sctpstat,
  934     "SCTP statistics (struct sctp_stat)");
  935 
  936 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_RD,
  937     0, 0, sctp_assoclist,
  938     "S,xassoc", "List of active SCTP associations");

Cache object: c541cdfcf27aa6890030afe2c0547fa9


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