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  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
    5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions are met:
   10  *
   11  * a) Redistributions of source code must retain the above copyright notice,
   12  *    this list of conditions and the following disclaimer.
   13  *
   14  * b) Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in
   16  *    the documentation and/or other materials provided with the distribution.
   17  *
   18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   19  *    contributors may be used to endorse or promote products derived
   20  *    from this software without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   32  * THE POSSIBILITY OF SUCH DAMAGE.
   33  */
   34 
   35 #include <sys/cdefs.h>
   36 __FBSDID("$FreeBSD: releng/12.0/sys/netinet/sctp_sysctl.c 340980 2018-11-26 16:36:38Z markj $");
   37 
   38 #include <netinet/sctp_os.h>
   39 #include <netinet/sctp.h>
   40 #include <netinet/sctp_constants.h>
   41 #include <netinet/sctp_sysctl.h>
   42 #include <netinet/sctp_pcb.h>
   43 #include <netinet/sctputil.h>
   44 #include <netinet/sctp_output.h>
   45 #include <sys/smp.h>
   46 #include <sys/sysctl.h>
   47 
   48 FEATURE(sctp, "Stream Control Transmission Protocol");
   49 
   50 /*
   51  * sysctl tunable variables
   52  */
   53 
   54 void
   55 sctp_init_sysctls()
   56 {
   57         SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
   58         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
   59         SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
   60         SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
   61         SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
   62         SCTP_BASE_SYSCTL(sctp_pr_enable) = SCTPCTL_PR_ENABLE_DEFAULT;
   63         SCTP_BASE_SYSCTL(sctp_auth_enable) = SCTPCTL_AUTH_ENABLE_DEFAULT;
   64         SCTP_BASE_SYSCTL(sctp_asconf_enable) = SCTPCTL_ASCONF_ENABLE_DEFAULT;
   65         SCTP_BASE_SYSCTL(sctp_reconfig_enable) = SCTPCTL_RECONFIG_ENABLE_DEFAULT;
   66         SCTP_BASE_SYSCTL(sctp_nrsack_enable) = SCTPCTL_NRSACK_ENABLE_DEFAULT;
   67         SCTP_BASE_SYSCTL(sctp_pktdrop_enable) = SCTPCTL_PKTDROP_ENABLE_DEFAULT;
   68         SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
   69         SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
   70         SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
   71         SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
   72         SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
   73         SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
   74         SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
   75         SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
   76         SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
   77         SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
   78         SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
   79         SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
   80         SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
   81         SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
   82         SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
   83         SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
   84         SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
   85         SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
   86         SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
   87         SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
   88         SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
   89         SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
   90         SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
   91         SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
   92         SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
   93         SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
   94         SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT;
   95         SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
   96         SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
   97         SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
   98         SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
   99         SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
  100         SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
  101         SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
  102         SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
  103         SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
  104         SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
  105         SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
  106         SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
  107         SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
  108         SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
  109         SCTP_BASE_SYSCTL(sctp_default_ss_module) = SCTPCTL_DEFAULT_SS_MODULE_DEFAULT;
  110         SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
  111         SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT;
  112         SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
  113         SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT;
  114         SCTP_BASE_SYSCTL(sctp_buffer_splitting) = SCTPCTL_BUFFER_SPLITTING_DEFAULT;
  115         SCTP_BASE_SYSCTL(sctp_initial_cwnd) = SCTPCTL_INITIAL_CWND_DEFAULT;
  116         SCTP_BASE_SYSCTL(sctp_rttvar_bw) = SCTPCTL_RTTVAR_BW_DEFAULT;
  117         SCTP_BASE_SYSCTL(sctp_rttvar_rtt) = SCTPCTL_RTTVAR_RTT_DEFAULT;
  118         SCTP_BASE_SYSCTL(sctp_rttvar_eqret) = SCTPCTL_RTTVAR_EQRET_DEFAULT;
  119         SCTP_BASE_SYSCTL(sctp_steady_step) = SCTPCTL_RTTVAR_STEADYS_DEFAULT;
  120         SCTP_BASE_SYSCTL(sctp_use_dccc_ecn) = SCTPCTL_RTTVAR_DCCCECN_DEFAULT;
  121         SCTP_BASE_SYSCTL(sctp_blackhole) = SCTPCTL_BLACKHOLE_DEFAULT;
  122         SCTP_BASE_SYSCTL(sctp_diag_info_code) = SCTPCTL_DIAG_INFO_CODE_DEFAULT;
  123 #if defined(SCTP_LOCAL_TRACE_BUF)
  124         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
  125 #endif
  126         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
  127         SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
  128         SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
  129 #if defined(SCTP_DEBUG)
  130         SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
  131 #endif
  132 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  133         SCTP_BASE_SYSCTL(sctp_output_unlocked) = SCTPCTL_OUTPUT_UNLOCKED_DEFAULT;
  134 #endif
  135 }
  136 
  137 
  138 /* It returns an upper limit. No filtering is done here */
  139 static unsigned int
  140 sctp_sysctl_number_of_addresses(struct sctp_inpcb *inp)
  141 {
  142         unsigned int cnt;
  143         struct sctp_vrf *vrf;
  144         struct sctp_ifn *sctp_ifn;
  145         struct sctp_ifa *sctp_ifa;
  146         struct sctp_laddr *laddr;
  147 
  148         cnt = 0;
  149         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
  150         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
  151                 return (0);
  152         }
  153         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
  154                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
  155                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
  156                                 switch (sctp_ifa->address.sa.sa_family) {
  157 #ifdef INET
  158                                 case AF_INET:
  159 #endif
  160 #ifdef INET6
  161                                 case AF_INET6:
  162 #endif
  163                                         cnt++;
  164                                         break;
  165                                 default:
  166                                         break;
  167                                 }
  168                         }
  169                 }
  170         } else {
  171                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
  172                         switch (laddr->ifa->address.sa.sa_family) {
  173 #ifdef INET
  174                         case AF_INET:
  175 #endif
  176 #ifdef INET6
  177                         case AF_INET6:
  178 #endif
  179                                 cnt++;
  180                                 break;
  181                         default:
  182                                 break;
  183                         }
  184                 }
  185         }
  186         return (cnt);
  187 }
  188 
  189 static int
  190 sctp_sysctl_copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
  191 {
  192         struct sctp_ifn *sctp_ifn;
  193         struct sctp_ifa *sctp_ifa;
  194         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
  195         int ipv4_addr_legal, ipv6_addr_legal;
  196         struct sctp_vrf *vrf;
  197         struct xsctp_laddr xladdr;
  198         struct sctp_laddr *laddr;
  199         int error;
  200 
  201         /* Turn on all the appropriate scope */
  202         if (stcb) {
  203                 /* use association specific values */
  204                 loopback_scope = stcb->asoc.scope.loopback_scope;
  205                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
  206                 local_scope = stcb->asoc.scope.local_scope;
  207                 site_scope = stcb->asoc.scope.site_scope;
  208                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
  209                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
  210         } else {
  211                 /* Use generic values for endpoints. */
  212                 loopback_scope = 1;
  213                 ipv4_local_scope = 1;
  214                 local_scope = 1;
  215                 site_scope = 1;
  216                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
  217                         ipv6_addr_legal = 1;
  218                         if (SCTP_IPV6_V6ONLY(inp)) {
  219                                 ipv4_addr_legal = 0;
  220                         } else {
  221                                 ipv4_addr_legal = 1;
  222                         }
  223                 } else {
  224                         ipv6_addr_legal = 0;
  225                         ipv4_addr_legal = 1;
  226                 }
  227         }
  228 
  229         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
  230         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
  231                 SCTP_INP_RUNLOCK(inp);
  232                 SCTP_INP_INFO_RUNLOCK();
  233                 return (-1);
  234         }
  235         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
  236                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
  237                         if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn))
  238                                 /* Skip loopback if loopback_scope not set */
  239                                 continue;
  240                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
  241                                 if (stcb) {
  242                                         /*
  243                                          * ignore if blacklisted at
  244                                          * association level
  245                                          */
  246                                         if (sctp_is_addr_restricted(stcb, sctp_ifa))
  247                                                 continue;
  248                                 }
  249                                 switch (sctp_ifa->address.sa.sa_family) {
  250 #ifdef INET
  251                                 case AF_INET:
  252                                         if (ipv4_addr_legal) {
  253                                                 struct sockaddr_in *sin;
  254 
  255                                                 sin = &sctp_ifa->address.sin;
  256                                                 if (sin->sin_addr.s_addr == 0)
  257                                                         continue;
  258                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
  259                                                     &sin->sin_addr) != 0) {
  260                                                         continue;
  261                                                 }
  262                                                 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr)))
  263                                                         continue;
  264                                         } else {
  265                                                 continue;
  266                                         }
  267                                         break;
  268 #endif
  269 #ifdef INET6
  270                                 case AF_INET6:
  271                                         if (ipv6_addr_legal) {
  272                                                 struct sockaddr_in6 *sin6;
  273 
  274                                                 sin6 = &sctp_ifa->address.sin6;
  275                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
  276                                                         continue;
  277                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
  278                                                     &sin6->sin6_addr) != 0) {
  279                                                         continue;
  280                                                 }
  281                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
  282                                                         if (local_scope == 0)
  283                                                                 continue;
  284                                                 }
  285                                                 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
  286                                                         continue;
  287                                         } else {
  288                                                 continue;
  289                                         }
  290                                         break;
  291 #endif
  292                                 default:
  293                                         continue;
  294                                 }
  295                                 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  296                                 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
  297                                 SCTP_INP_RUNLOCK(inp);
  298                                 SCTP_INP_INFO_RUNLOCK();
  299                                 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  300                                 if (error) {
  301                                         return (error);
  302                                 } else {
  303                                         SCTP_INP_INFO_RLOCK();
  304                                         SCTP_INP_RLOCK(inp);
  305                                 }
  306                         }
  307                 }
  308         } else {
  309                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
  310                         /* ignore if blacklisted at association level */
  311                         if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
  312                                 continue;
  313                         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  314                         memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
  315                         xladdr.start_time.tv_sec = (uint32_t)laddr->start_time.tv_sec;
  316                         xladdr.start_time.tv_usec = (uint32_t)laddr->start_time.tv_usec;
  317                         SCTP_INP_RUNLOCK(inp);
  318                         SCTP_INP_INFO_RUNLOCK();
  319                         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  320                         if (error) {
  321                                 return (error);
  322                         } else {
  323                                 SCTP_INP_INFO_RLOCK();
  324                                 SCTP_INP_RLOCK(inp);
  325                         }
  326                 }
  327         }
  328         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  329         xladdr.last = 1;
  330         SCTP_INP_RUNLOCK(inp);
  331         SCTP_INP_INFO_RUNLOCK();
  332         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  333 
  334         if (error) {
  335                 return (error);
  336         } else {
  337                 SCTP_INP_INFO_RLOCK();
  338                 SCTP_INP_RLOCK(inp);
  339                 return (0);
  340         }
  341 }
  342 
  343 /*
  344  * sysctl functions
  345  */
  346 static int
  347 sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)
  348 {
  349         unsigned int number_of_endpoints;
  350         unsigned int number_of_local_addresses;
  351         unsigned int number_of_associations;
  352         unsigned int number_of_remote_addresses;
  353         unsigned int n;
  354         int error;
  355         struct sctp_inpcb *inp;
  356         struct sctp_tcb *stcb;
  357         struct sctp_nets *net;
  358         struct xsctp_inpcb xinpcb;
  359         struct xsctp_tcb xstcb;
  360         struct xsctp_raddr xraddr;
  361         struct socket *so;
  362 
  363         number_of_endpoints = 0;
  364         number_of_local_addresses = 0;
  365         number_of_associations = 0;
  366         number_of_remote_addresses = 0;
  367 
  368         SCTP_INP_INFO_RLOCK();
  369         if (req->oldptr == NULL) {
  370                 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  371                         SCTP_INP_RLOCK(inp);
  372                         number_of_endpoints++;
  373                         number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
  374                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  375                                 number_of_associations++;
  376                                 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
  377                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  378                                         number_of_remote_addresses++;
  379                                 }
  380                         }
  381                         SCTP_INP_RUNLOCK(inp);
  382                 }
  383                 SCTP_INP_INFO_RUNLOCK();
  384                 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
  385                     (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
  386                     (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
  387                     (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
  388 
  389                 /* request some more memory than needed */
  390                 req->oldidx = (n + n / 8);
  391                 return (0);
  392         }
  393         if (req->newptr != NULL) {
  394                 SCTP_INP_INFO_RUNLOCK();
  395                 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
  396                 return (EPERM);
  397         }
  398         memset(&xinpcb, 0, sizeof(xinpcb));
  399         memset(&xstcb, 0, sizeof(xstcb));
  400         memset(&xraddr, 0, sizeof(xraddr));
  401         LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  402                 SCTP_INP_RLOCK(inp);
  403                 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
  404                         /* if its allgone it is being freed - skip it  */
  405                         goto skip;
  406                 }
  407                 xinpcb.last = 0;
  408                 xinpcb.local_port = ntohs(inp->sctp_lport);
  409                 xinpcb.flags = inp->sctp_flags;
  410                 xinpcb.features = inp->sctp_features;
  411                 xinpcb.total_sends = inp->total_sends;
  412                 xinpcb.total_recvs = inp->total_recvs;
  413                 xinpcb.total_nospaces = inp->total_nospaces;
  414                 xinpcb.fragmentation_point = inp->sctp_frag_point;
  415                 xinpcb.socket = (uintptr_t)inp->sctp_socket;
  416                 so = inp->sctp_socket;
  417                 if ((so == NULL) ||
  418                     (!SCTP_IS_LISTENING(inp)) ||
  419                     (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
  420                         xinpcb.qlen = 0;
  421                         xinpcb.maxqlen = 0;
  422                 } else {
  423                         xinpcb.qlen = so->sol_qlen;
  424                         xinpcb.qlen_old = so->sol_qlen > USHRT_MAX ?
  425                             USHRT_MAX : (uint16_t)so->sol_qlen;
  426                         xinpcb.maxqlen = so->sol_qlimit;
  427                         xinpcb.maxqlen_old = so->sol_qlimit > USHRT_MAX ?
  428                             USHRT_MAX : (uint16_t)so->sol_qlimit;
  429                 }
  430                 SCTP_INP_INCR_REF(inp);
  431                 SCTP_INP_RUNLOCK(inp);
  432                 SCTP_INP_INFO_RUNLOCK();
  433                 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  434                 if (error) {
  435                         SCTP_INP_DECR_REF(inp);
  436                         return (error);
  437                 }
  438                 SCTP_INP_INFO_RLOCK();
  439                 SCTP_INP_RLOCK(inp);
  440                 error = sctp_sysctl_copy_out_local_addresses(inp, NULL, req);
  441                 if (error) {
  442                         SCTP_INP_DECR_REF(inp);
  443                         return (error);
  444                 }
  445                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  446                         SCTP_TCB_LOCK(stcb);
  447                         atomic_add_int(&stcb->asoc.refcnt, 1);
  448                         SCTP_TCB_UNLOCK(stcb);
  449                         xstcb.last = 0;
  450                         xstcb.local_port = ntohs(inp->sctp_lport);
  451                         xstcb.remote_port = ntohs(stcb->rport);
  452                         if (stcb->asoc.primary_destination != NULL)
  453                                 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
  454                         xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
  455                         xstcb.state = (uint32_t)sctp_map_assoc_state(stcb->asoc.state);
  456                         /* 7.0 does not support these */
  457                         xstcb.assoc_id = sctp_get_associd(stcb);
  458                         xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
  459                         xstcb.in_streams = stcb->asoc.streamincnt;
  460                         xstcb.out_streams = stcb->asoc.streamoutcnt;
  461                         xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
  462                         xstcb.primary_process = 0;      /* not really supported
  463                                                          * yet */
  464                         xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
  465                         xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
  466                         xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
  467                         xstcb.start_time.tv_sec = (uint32_t)stcb->asoc.start_time.tv_sec;
  468                         xstcb.start_time.tv_usec = (uint32_t)stcb->asoc.start_time.tv_usec;
  469                         xstcb.discontinuity_time.tv_sec = (uint32_t)stcb->asoc.discontinuity_time.tv_sec;
  470                         xstcb.discontinuity_time.tv_usec = (uint32_t)stcb->asoc.discontinuity_time.tv_usec;
  471                         xstcb.total_sends = stcb->total_sends;
  472                         xstcb.total_recvs = stcb->total_recvs;
  473                         xstcb.local_tag = stcb->asoc.my_vtag;
  474                         xstcb.remote_tag = stcb->asoc.peer_vtag;
  475                         xstcb.initial_tsn = stcb->asoc.init_seq_number;
  476                         xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
  477                         xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
  478                         xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
  479                         xstcb.mtu = stcb->asoc.smallest_mtu;
  480                         xstcb.refcnt = stcb->asoc.refcnt;
  481                         SCTP_INP_RUNLOCK(inp);
  482                         SCTP_INP_INFO_RUNLOCK();
  483                         error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  484                         if (error) {
  485                                 SCTP_INP_DECR_REF(inp);
  486                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  487                                 return (error);
  488                         }
  489                         SCTP_INP_INFO_RLOCK();
  490                         SCTP_INP_RLOCK(inp);
  491                         error = sctp_sysctl_copy_out_local_addresses(inp, stcb, req);
  492                         if (error) {
  493                                 SCTP_INP_DECR_REF(inp);
  494                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  495                                 return (error);
  496                         }
  497                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  498                                 xraddr.last = 0;
  499                                 xraddr.address = net->ro._l_addr;
  500                                 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
  501                                 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
  502                                 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
  503                                 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
  504                                 xraddr.rto = net->RTO;
  505                                 xraddr.max_path_rtx = net->failure_threshold;
  506                                 xraddr.rtx = net->marked_retrans;
  507                                 xraddr.error_counter = net->error_count;
  508                                 xraddr.cwnd = net->cwnd;
  509                                 xraddr.flight_size = net->flight_size;
  510                                 xraddr.mtu = net->mtu;
  511                                 xraddr.rtt = net->rtt / 1000;
  512                                 xraddr.heartbeat_interval = net->heart_beat_delay;
  513                                 xraddr.ssthresh = net->ssthresh;
  514                                 xraddr.encaps_port = net->port;
  515                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
  516                                         xraddr.state = SCTP_UNCONFIRMED;
  517                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
  518                                         xraddr.state = SCTP_ACTIVE;
  519                                 } else {
  520                                         xraddr.state = SCTP_INACTIVE;
  521                                 }
  522                                 xraddr.start_time.tv_sec = (uint32_t)net->start_time.tv_sec;
  523                                 xraddr.start_time.tv_usec = (uint32_t)net->start_time.tv_usec;
  524                                 SCTP_INP_RUNLOCK(inp);
  525                                 SCTP_INP_INFO_RUNLOCK();
  526                                 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  527                                 if (error) {
  528                                         SCTP_INP_DECR_REF(inp);
  529                                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  530                                         return (error);
  531                                 }
  532                                 SCTP_INP_INFO_RLOCK();
  533                                 SCTP_INP_RLOCK(inp);
  534                         }
  535                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  536                         memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
  537                         xraddr.last = 1;
  538                         SCTP_INP_RUNLOCK(inp);
  539                         SCTP_INP_INFO_RUNLOCK();
  540                         error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  541                         if (error) {
  542                                 SCTP_INP_DECR_REF(inp);
  543                                 return (error);
  544                         }
  545                         SCTP_INP_INFO_RLOCK();
  546                         SCTP_INP_RLOCK(inp);
  547                 }
  548                 SCTP_INP_DECR_REF(inp);
  549                 SCTP_INP_RUNLOCK(inp);
  550                 SCTP_INP_INFO_RUNLOCK();
  551                 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
  552                 xstcb.last = 1;
  553                 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  554                 if (error) {
  555                         return (error);
  556                 }
  557 skip:
  558                 SCTP_INP_INFO_RLOCK();
  559         }
  560         SCTP_INP_INFO_RUNLOCK();
  561 
  562         memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
  563         xinpcb.last = 1;
  564         error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  565         return (error);
  566 }
  567 
  568 static int
  569 sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS)
  570 {
  571         int error;
  572         uint32_t old, new;
  573 
  574         SCTP_INP_INFO_RLOCK();
  575         old = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
  576         SCTP_INP_INFO_RUNLOCK();
  577         new = old;
  578         error = sysctl_handle_int(oidp, &new, 0, req);
  579         if ((error == 0) &&
  580             (req->newptr != NULL)) {
  581 #if (SCTPCTL_UDP_TUNNELING_PORT_MIN == 0)
  582                 if (new > SCTPCTL_UDP_TUNNELING_PORT_MAX) {
  583 #else
  584                 if ((new < SCTPCTL_UDP_TUNNELING_PORT_MIN) ||
  585                     (new > SCTPCTL_UDP_TUNNELING_PORT_MAX)) {
  586 #endif
  587                         error = EINVAL;
  588                 } else {
  589                         SCTP_INP_INFO_WLOCK();
  590                         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = new;
  591                         if (old != 0) {
  592                                 sctp_over_udp_stop();
  593                         }
  594                         if (new != 0) {
  595                                 error = sctp_over_udp_start();
  596                         }
  597                         SCTP_INP_INFO_WUNLOCK();
  598                 }
  599         }
  600         return (error);
  601 }
  602 
  603 
  604 static int
  605 sctp_sysctl_handle_auth(SYSCTL_HANDLER_ARGS)
  606 {
  607         int error;
  608         uint32_t new;
  609 
  610         new = SCTP_BASE_SYSCTL(sctp_auth_enable);
  611         error = sysctl_handle_int(oidp, &new, 0, req);
  612         if ((error == 0) &&
  613             (req->newptr != NULL)) {
  614 #if (SCTPCTL_AUTH_ENABLE_MIN == 0)
  615                 if ((new > SCTPCTL_AUTH_ENABLE_MAX) ||
  616                     ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
  617 #else
  618                 if ((new < SCTPCTL_AUTH_ENABLE_MIN) ||
  619                     (new > SCTPCTL_AUTH_ENABLE_MAX) ||
  620                     ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
  621 #endif
  622                         error = EINVAL;
  623                 } else {
  624                         SCTP_BASE_SYSCTL(sctp_auth_enable) = new;
  625                 }
  626         }
  627         return (error);
  628 }
  629 
  630 static int
  631 sctp_sysctl_handle_asconf(SYSCTL_HANDLER_ARGS)
  632 {
  633         int error;
  634         uint32_t new;
  635 
  636         new = SCTP_BASE_SYSCTL(sctp_asconf_enable);
  637         error = sysctl_handle_int(oidp, &new, 0, req);
  638         if ((error == 0) &&
  639             (req->newptr != NULL)) {
  640 #if (SCTPCTL_ASCONF_ENABLE_MIN == 0)
  641                 if ((new > SCTPCTL_ASCONF_ENABLE_MAX) ||
  642                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
  643 #else
  644                 if ((new < SCTPCTL_ASCONF_ENABLE_MIN) ||
  645                     (new > SCTPCTL_ASCONF_ENABLE_MAX) ||
  646                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
  647 #endif
  648                         error = EINVAL;
  649                 } else {
  650                         SCTP_BASE_SYSCTL(sctp_asconf_enable) = new;
  651                 }
  652         }
  653         return (error);
  654 }
  655 
  656 static int
  657 sctp_sysctl_handle_stats(SYSCTL_HANDLER_ARGS)
  658 {
  659         int error;
  660 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
  661         struct sctpstat *sarry;
  662         struct sctpstat sb;
  663         int cpu;
  664 #endif
  665         struct sctpstat sb_temp;
  666 
  667         if ((req->newptr != NULL) &&
  668             (req->newlen != sizeof(struct sctpstat))) {
  669                 return (EINVAL);
  670         }
  671         memset(&sb_temp, 0, sizeof(struct sctpstat));
  672 
  673         if (req->newptr != NULL) {
  674                 error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat));
  675                 if (error != 0) {
  676                         return (error);
  677                 }
  678         }
  679 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
  680         memset(&sb, 0, sizeof(sb));
  681         for (cpu = 0; cpu < mp_maxid; cpu++) {
  682                 sarry = &SCTP_BASE_STATS[cpu];
  683                 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
  684                         sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
  685                         sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
  686                 }
  687                 sb.sctps_currestab += sarry->sctps_currestab;
  688                 sb.sctps_activeestab += sarry->sctps_activeestab;
  689                 sb.sctps_restartestab += sarry->sctps_restartestab;
  690                 sb.sctps_collisionestab += sarry->sctps_collisionestab;
  691                 sb.sctps_passiveestab += sarry->sctps_passiveestab;
  692                 sb.sctps_aborted += sarry->sctps_aborted;
  693                 sb.sctps_shutdown += sarry->sctps_shutdown;
  694                 sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
  695                 sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
  696                 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
  697                 sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
  698                 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
  699                 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
  700                 sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
  701                 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
  702                 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
  703                 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
  704                 sb.sctps_outpackets += sarry->sctps_outpackets;
  705                 sb.sctps_inpackets += sarry->sctps_inpackets;
  706                 sb.sctps_recvpackets += sarry->sctps_recvpackets;
  707                 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
  708                 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
  709                 sb.sctps_recvsacks += sarry->sctps_recvsacks;
  710                 sb.sctps_recvdata += sarry->sctps_recvdata;
  711                 sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
  712                 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
  713                 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
  714                 sb.sctps_recvecne += sarry->sctps_recvecne;
  715                 sb.sctps_recvauth += sarry->sctps_recvauth;
  716                 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
  717                 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
  718                 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
  719                 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
  720                 sb.sctps_recvexpress += sarry->sctps_recvexpress;
  721                 sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
  722                 sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
  723                 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
  724                 sb.sctps_sendpackets += sarry->sctps_sendpackets;
  725                 sb.sctps_sendsacks += sarry->sctps_sendsacks;
  726                 sb.sctps_senddata += sarry->sctps_senddata;
  727                 sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
  728                 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
  729                 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
  730                 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
  731                 sb.sctps_sendecne += sarry->sctps_sendecne;
  732                 sb.sctps_sendauth += sarry->sctps_sendauth;
  733                 sb.sctps_senderrors += sarry->sctps_senderrors;
  734                 sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
  735                 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
  736                 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
  737                 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
  738                 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
  739                 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
  740                 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
  741                 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
  742                 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
  743                 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
  744                 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
  745                 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
  746                 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
  747                 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
  748                 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
  749                 sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
  750                 sb.sctps_timoiterator += sarry->sctps_timoiterator;
  751                 sb.sctps_timodata += sarry->sctps_timodata;
  752                 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
  753                 sb.sctps_timoinit += sarry->sctps_timoinit;
  754                 sb.sctps_timosack += sarry->sctps_timosack;
  755                 sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
  756                 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
  757                 sb.sctps_timocookie += sarry->sctps_timocookie;
  758                 sb.sctps_timosecret += sarry->sctps_timosecret;
  759                 sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
  760                 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
  761                 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
  762                 sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
  763                 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
  764                 sb.sctps_timoasconf += sarry->sctps_timoasconf;
  765                 sb.sctps_timodelprim += sarry->sctps_timodelprim;
  766                 sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
  767                 sb.sctps_timoassockill += sarry->sctps_timoassockill;
  768                 sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
  769                 sb.sctps_hdrops += sarry->sctps_hdrops;
  770                 sb.sctps_badsum += sarry->sctps_badsum;
  771                 sb.sctps_noport += sarry->sctps_noport;
  772                 sb.sctps_badvtag += sarry->sctps_badvtag;
  773                 sb.sctps_badsid += sarry->sctps_badsid;
  774                 sb.sctps_nomem += sarry->sctps_nomem;
  775                 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
  776                 sb.sctps_markedretrans += sarry->sctps_markedretrans;
  777                 sb.sctps_naglesent += sarry->sctps_naglesent;
  778                 sb.sctps_naglequeued += sarry->sctps_naglequeued;
  779                 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
  780                 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
  781                 sb.sctps_windowprobed += sarry->sctps_windowprobed;
  782                 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
  783                 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
  784                 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
  785                 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
  786                 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
  787                 sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
  788                 sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
  789                 sb.sctps_primary_randry += sarry->sctps_primary_randry;
  790                 sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
  791                 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
  792                 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
  793                 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
  794                 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
  795                 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
  796                 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
  797                 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
  798                 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
  799                 sb.sctps_read_peeks += sarry->sctps_read_peeks;
  800                 sb.sctps_cached_chk += sarry->sctps_cached_chk;
  801                 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
  802                 sb.sctps_left_abandon += sarry->sctps_left_abandon;
  803                 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
  804                 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
  805                 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
  806                 if (req->newptr != NULL) {
  807                         memcpy(sarry, &sb_temp, sizeof(struct sctpstat));
  808                 }
  809         }
  810         error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat));
  811 #else
  812         error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat));
  813         if (error != 0) {
  814                 return (error);
  815         }
  816         if (req->newptr != NULL) {
  817                 memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat));
  818         }
  819 #endif
  820         return (error);
  821 }
  822 
  823 #if defined(SCTP_LOCAL_TRACE_BUF)
  824 static int
  825 sctp_sysctl_handle_trace_log(SYSCTL_HANDLER_ARGS)
  826 {
  827         int error;
  828 
  829         error = SYSCTL_OUT(req, &SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log));
  830         return (error);
  831 }
  832 
  833 static int
  834 sctp_sysctl_handle_trace_log_clear(SYSCTL_HANDLER_ARGS)
  835 {
  836         int error = 0;
  837 
  838         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
  839         return (error);
  840 }
  841 #endif
  842 
  843 #define SCTP_UINT_SYSCTL(mib_name, var_name, prefix)                    \
  844         static int                                                      \
  845         sctp_sysctl_handle_##mib_name(SYSCTL_HANDLER_ARGS)              \
  846         {                                                               \
  847                 int error;                                              \
  848                 uint32_t new;                                           \
  849                                                                         \
  850                 new = SCTP_BASE_SYSCTL(var_name);                       \
  851                 error = sysctl_handle_int(oidp, &new, 0, req);          \
  852                 if ((error == 0) && (req->newptr != NULL)) {            \
  853                         if ((new < prefix##_MIN) ||                     \
  854                             (new > prefix##_MAX)) {                     \
  855                                 error = EINVAL;                         \
  856                         } else {                                        \
  857                                 SCTP_BASE_SYSCTL(var_name) = new;       \
  858                         }                                               \
  859                 }                                                       \
  860                 return (error);                                         \
  861         }                                                               \
  862         SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name,                 \
  863                          CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW, NULL, 0, \
  864                          sctp_sysctl_handle_##mib_name, "UI", prefix##_DESC);
  865 
  866 /*
  867  * sysctl definitions
  868  */
  869 
  870 SCTP_UINT_SYSCTL(sendspace, sctp_sendspace, SCTPCTL_MAXDGRAM)
  871 SCTP_UINT_SYSCTL(recvspace, sctp_recvspace, SCTPCTL_RECVSPACE)
  872 SCTP_UINT_SYSCTL(auto_asconf, sctp_auto_asconf, SCTPCTL_AUTOASCONF)
  873 SCTP_UINT_SYSCTL(ecn_enable, sctp_ecn_enable, SCTPCTL_ECN_ENABLE)
  874 SCTP_UINT_SYSCTL(pr_enable, sctp_pr_enable, SCTPCTL_PR_ENABLE)
  875 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  876     NULL, 0, sctp_sysctl_handle_auth, "IU", SCTPCTL_AUTH_ENABLE_DESC);
  877 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  878     NULL, 0, sctp_sysctl_handle_asconf, "IU", SCTPCTL_ASCONF_ENABLE_DESC);
  879 SCTP_UINT_SYSCTL(reconfig_enable, sctp_reconfig_enable, SCTPCTL_RECONFIG_ENABLE)
  880 SCTP_UINT_SYSCTL(nrsack_enable, sctp_nrsack_enable, SCTPCTL_NRSACK_ENABLE)
  881 SCTP_UINT_SYSCTL(pktdrop_enable, sctp_pktdrop_enable, SCTPCTL_PKTDROP_ENABLE)
  882 SCTP_UINT_SYSCTL(peer_chkoh, sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH)
  883 SCTP_UINT_SYSCTL(maxburst, sctp_max_burst_default, SCTPCTL_MAXBURST)
  884 SCTP_UINT_SYSCTL(fr_maxburst, sctp_fr_max_burst_default, SCTPCTL_FRMAXBURST)
  885 SCTP_UINT_SYSCTL(maxchunks, sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS)
  886 SCTP_UINT_SYSCTL(tcbhashsize, sctp_hashtblsize, SCTPCTL_TCBHASHSIZE)
  887 SCTP_UINT_SYSCTL(pcbhashsize, sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE)
  888 SCTP_UINT_SYSCTL(min_split_point, sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT)
  889 SCTP_UINT_SYSCTL(chunkscale, sctp_chunkscale, SCTPCTL_CHUNKSCALE)
  890 SCTP_UINT_SYSCTL(delayed_sack_time, sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME)
  891 SCTP_UINT_SYSCTL(sack_freq, sctp_sack_freq_default, SCTPCTL_SACK_FREQ)
  892 SCTP_UINT_SYSCTL(sys_resource, sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE)
  893 SCTP_UINT_SYSCTL(asoc_resource, sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE)
  894 SCTP_UINT_SYSCTL(heartbeat_interval, sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL)
  895 SCTP_UINT_SYSCTL(pmtu_raise_time, sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME)
  896 SCTP_UINT_SYSCTL(shutdown_guard_time, sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME)
  897 SCTP_UINT_SYSCTL(secret_lifetime, sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME)
  898 SCTP_UINT_SYSCTL(rto_max, sctp_rto_max_default, SCTPCTL_RTO_MAX)
  899 SCTP_UINT_SYSCTL(rto_min, sctp_rto_min_default, SCTPCTL_RTO_MIN)
  900 SCTP_UINT_SYSCTL(rto_initial, sctp_rto_initial_default, SCTPCTL_RTO_INITIAL)
  901 SCTP_UINT_SYSCTL(init_rto_max, sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX)
  902 SCTP_UINT_SYSCTL(valid_cookie_life, sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE)
  903 SCTP_UINT_SYSCTL(init_rtx_max, sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX)
  904 SCTP_UINT_SYSCTL(assoc_rtx_max, sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX)
  905 SCTP_UINT_SYSCTL(path_rtx_max, sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX)
  906 SCTP_UINT_SYSCTL(path_pf_threshold, sctp_path_pf_threshold, SCTPCTL_PATH_PF_THRESHOLD)
  907 SCTP_UINT_SYSCTL(add_more_on_output, sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT)
  908 SCTP_UINT_SYSCTL(incoming_streams, sctp_nr_incoming_streams_default, SCTPCTL_INCOMING_STREAMS)
  909 SCTP_UINT_SYSCTL(outgoing_streams, sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS)
  910 SCTP_UINT_SYSCTL(cmt_on_off, sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF)
  911 SCTP_UINT_SYSCTL(cmt_use_dac, sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC)
  912 SCTP_UINT_SYSCTL(cwnd_maxburst, sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST)
  913 SCTP_UINT_SYSCTL(nat_friendly, sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY)
  914 SCTP_UINT_SYSCTL(abc_l_var, sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR)
  915 SCTP_UINT_SYSCTL(max_chained_mbufs, sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS)
  916 SCTP_UINT_SYSCTL(do_sctp_drain, sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN)
  917 SCTP_UINT_SYSCTL(hb_max_burst, sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST)
  918 SCTP_UINT_SYSCTL(abort_at_limit, sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT)
  919 SCTP_UINT_SYSCTL(min_residual, sctp_min_residual, SCTPCTL_MIN_RESIDUAL)
  920 SCTP_UINT_SYSCTL(max_retran_chunk, sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK)
  921 SCTP_UINT_SYSCTL(log_level, sctp_logging_level, SCTPCTL_LOGGING_LEVEL)
  922 SCTP_UINT_SYSCTL(default_cc_module, sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE)
  923 SCTP_UINT_SYSCTL(default_ss_module, sctp_default_ss_module, SCTPCTL_DEFAULT_SS_MODULE)
  924 SCTP_UINT_SYSCTL(default_frag_interleave, sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE)
  925 SCTP_UINT_SYSCTL(mobility_base, sctp_mobility_base, SCTPCTL_MOBILITY_BASE)
  926 SCTP_UINT_SYSCTL(mobility_fasthandoff, sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF)
  927 #if defined(SCTP_LOCAL_TRACE_BUF)
  928 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RD,
  929     NULL, 0, sctp_sysctl_handle_trace_log, "S,sctplog", "SCTP logging (struct sctp_log)");
  930 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  931     NULL, 0, sctp_sysctl_handle_trace_log_clear, "IU", "Clear SCTP Logging buffer");
  932 #endif
  933 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  934     NULL, 0, sctp_sysctl_handle_udp_tunneling, "IU", SCTPCTL_UDP_TUNNELING_PORT_DESC);
  935 SCTP_UINT_SYSCTL(enable_sack_immediately, sctp_enable_sack_immediately, SCTPCTL_SACK_IMMEDIATELY_ENABLE)
  936 SCTP_UINT_SYSCTL(nat_friendly_init, sctp_inits_include_nat_friendly, SCTPCTL_NAT_FRIENDLY_INITS)
  937 SCTP_UINT_SYSCTL(vtag_time_wait, sctp_vtag_time_wait, SCTPCTL_TIME_WAIT)
  938 SCTP_UINT_SYSCTL(buffer_splitting, sctp_buffer_splitting, SCTPCTL_BUFFER_SPLITTING)
  939 SCTP_UINT_SYSCTL(initial_cwnd, sctp_initial_cwnd, SCTPCTL_INITIAL_CWND)
  940 SCTP_UINT_SYSCTL(rttvar_bw, sctp_rttvar_bw, SCTPCTL_RTTVAR_BW)
  941 SCTP_UINT_SYSCTL(rttvar_rtt, sctp_rttvar_rtt, SCTPCTL_RTTVAR_RTT)
  942 SCTP_UINT_SYSCTL(rttvar_eqret, sctp_rttvar_eqret, SCTPCTL_RTTVAR_EQRET)
  943 SCTP_UINT_SYSCTL(rttvar_steady_step, sctp_steady_step, SCTPCTL_RTTVAR_STEADYS)
  944 SCTP_UINT_SYSCTL(use_dcccecn, sctp_use_dccc_ecn, SCTPCTL_RTTVAR_DCCCECN)
  945 SCTP_UINT_SYSCTL(blackhole, sctp_blackhole, SCTPCTL_BLACKHOLE)
  946 SCTP_UINT_SYSCTL(diag_info_code, sctp_diag_info_code, SCTPCTL_DIAG_INFO_CODE)
  947 #ifdef SCTP_DEBUG
  948 SCTP_UINT_SYSCTL(debug, sctp_debug_on, SCTPCTL_DEBUG)
  949 #endif
  950 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  951 SCTP_UINT_SYSCTL(output_unlocked, sctp_output_unlocked, SCTPCTL_OUTPUT_UNLOCKED)
  952 #endif
  953 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RW,
  954     NULL, 0, sctp_sysctl_handle_stats, "S,sctpstat", "SCTP statistics (struct sctp_stat)");
  955 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_VNET | CTLTYPE_OPAQUE | CTLFLAG_RD,
  956     NULL, 0, sctp_sysctl_handle_assoclist, "S,xassoc", "List of active SCTP associations");

Cache object: 14098a62f6f12a6012ded4dfcf078edb


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