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  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/10.2/sys/netinet/sctp_sysctl.c 284150 2015-06-08 07:06:33Z tuexen $");
   35 
   36 #include <netinet/sctp_os.h>
   37 #include <netinet/sctp.h>
   38 #include <netinet/sctp_constants.h>
   39 #include <netinet/sctp_sysctl.h>
   40 #include <netinet/sctp_pcb.h>
   41 #include <netinet/sctputil.h>
   42 #include <netinet/sctp_output.h>
   43 #include <sys/smp.h>
   44 #include <sys/sysctl.h>
   45 
   46 FEATURE(sctp, "Stream Control Transmission Protocol");
   47 
   48 /*
   49  * sysctl tunable variables
   50  */
   51 
   52 void
   53 sctp_init_sysctls()
   54 {
   55         SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
   56         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
   57         SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
   58         SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
   59         SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
   60         SCTP_BASE_SYSCTL(sctp_pr_enable) = SCTPCTL_PR_ENABLE_DEFAULT;
   61         SCTP_BASE_SYSCTL(sctp_auth_disable) = SCTPCTL_AUTH_DISABLE_DEFAULT;
   62         SCTP_BASE_SYSCTL(sctp_asconf_enable) = SCTPCTL_ASCONF_ENABLE_DEFAULT;
   63         SCTP_BASE_SYSCTL(sctp_reconfig_enable) = SCTPCTL_RECONFIG_ENABLE_DEFAULT;
   64         SCTP_BASE_SYSCTL(sctp_nrsack_enable) = SCTPCTL_NRSACK_ENABLE_DEFAULT;
   65         SCTP_BASE_SYSCTL(sctp_pktdrop_enable) = SCTPCTL_PKTDROP_ENABLE_DEFAULT;
   66         SCTP_BASE_SYSCTL(sctp_strict_sacks) = SCTPCTL_STRICT_SACKS_DEFAULT;
   67         SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
   68         SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
   69         SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
   70         SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
   71         SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
   72         SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
   73         SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
   74         SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
   75         SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
   76         SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
   77         SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
   78         SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
   79         SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
   80         SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
   81         SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
   82         SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
   83         SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
   84         SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
   85         SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
   86         SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
   87         SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
   88         SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
   89         SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
   90         SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
   91         SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
   92         SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
   93         SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT;
   94         SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
   95         SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
   96         SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
   97         SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
   98         SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
   99         SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
  100         SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
  101         SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
  102         SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
  103         SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
  104         SCTP_BASE_SYSCTL(sctp_strict_data_order) = SCTPCTL_STRICT_DATA_ORDER_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                                                         if (sin6->sin6_scope_id == 0) {
  285                                                                 /*
  286                                                                  * bad link
  287                                                                  * local
  288                                                                  * address
  289                                                                  */
  290                                                                 if (sa6_recoverscope(sin6) != 0)
  291                                                                         continue;
  292                                                         }
  293                                                 }
  294                                                 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
  295                                                         continue;
  296                                         } else {
  297                                                 continue;
  298                                         }
  299                                         break;
  300 #endif
  301                                 default:
  302                                         continue;
  303                                 }
  304                                 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  305                                 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
  306                                 SCTP_INP_RUNLOCK(inp);
  307                                 SCTP_INP_INFO_RUNLOCK();
  308                                 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  309                                 if (error) {
  310                                         return (error);
  311                                 } else {
  312                                         SCTP_INP_INFO_RLOCK();
  313                                         SCTP_INP_RLOCK(inp);
  314                                 }
  315                         }
  316                 }
  317         } else {
  318                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
  319                         /* ignore if blacklisted at association level */
  320                         if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
  321                                 continue;
  322                         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  323                         memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
  324                         xladdr.start_time.tv_sec = (uint32_t) laddr->start_time.tv_sec;
  325                         xladdr.start_time.tv_usec = (uint32_t) laddr->start_time.tv_usec;
  326                         SCTP_INP_RUNLOCK(inp);
  327                         SCTP_INP_INFO_RUNLOCK();
  328                         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  329                         if (error) {
  330                                 return (error);
  331                         } else {
  332                                 SCTP_INP_INFO_RLOCK();
  333                                 SCTP_INP_RLOCK(inp);
  334                         }
  335                 }
  336         }
  337         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
  338         xladdr.last = 1;
  339         SCTP_INP_RUNLOCK(inp);
  340         SCTP_INP_INFO_RUNLOCK();
  341         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
  342 
  343         if (error) {
  344                 return (error);
  345         } else {
  346                 SCTP_INP_INFO_RLOCK();
  347                 SCTP_INP_RLOCK(inp);
  348                 return (0);
  349         }
  350 }
  351 
  352 /*
  353  * sysctl functions
  354  */
  355 static int
  356 sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)
  357 {
  358         unsigned int number_of_endpoints;
  359         unsigned int number_of_local_addresses;
  360         unsigned int number_of_associations;
  361         unsigned int number_of_remote_addresses;
  362         unsigned int n;
  363         int error;
  364         struct sctp_inpcb *inp;
  365         struct sctp_tcb *stcb;
  366         struct sctp_nets *net;
  367         struct xsctp_inpcb xinpcb;
  368         struct xsctp_tcb xstcb;
  369         struct xsctp_raddr xraddr;
  370         struct socket *so;
  371 
  372         number_of_endpoints = 0;
  373         number_of_local_addresses = 0;
  374         number_of_associations = 0;
  375         number_of_remote_addresses = 0;
  376 
  377         SCTP_INP_INFO_RLOCK();
  378         if (req->oldptr == NULL) {
  379                 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  380                         SCTP_INP_RLOCK(inp);
  381                         number_of_endpoints++;
  382                         number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
  383                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  384                                 number_of_associations++;
  385                                 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
  386                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  387                                         number_of_remote_addresses++;
  388                                 }
  389                         }
  390                         SCTP_INP_RUNLOCK(inp);
  391                 }
  392                 SCTP_INP_INFO_RUNLOCK();
  393                 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
  394                     (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
  395                     (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
  396                     (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
  397 
  398                 /* request some more memory than needed */
  399                 req->oldidx = (n + n / 8);
  400                 return (0);
  401         }
  402         if (req->newptr != NULL) {
  403                 SCTP_INP_INFO_RUNLOCK();
  404                 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
  405                 return (EPERM);
  406         }
  407         LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
  408                 SCTP_INP_RLOCK(inp);
  409                 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
  410                         /* if its allgone it is being freed - skip it  */
  411                         goto skip;
  412                 }
  413                 xinpcb.last = 0;
  414                 xinpcb.local_port = ntohs(inp->sctp_lport);
  415                 xinpcb.flags = inp->sctp_flags;
  416                 xinpcb.features = inp->sctp_features;
  417                 xinpcb.total_sends = inp->total_sends;
  418                 xinpcb.total_recvs = inp->total_recvs;
  419                 xinpcb.total_nospaces = inp->total_nospaces;
  420                 xinpcb.fragmentation_point = inp->sctp_frag_point;
  421                 xinpcb.socket = inp->sctp_socket;
  422                 so = inp->sctp_socket;
  423                 if ((so == NULL) ||
  424                     (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
  425                         xinpcb.qlen = 0;
  426                         xinpcb.maxqlen = 0;
  427                 } else {
  428                         xinpcb.qlen = so->so_qlen;
  429                         xinpcb.maxqlen = so->so_qlimit;
  430                 }
  431                 SCTP_INP_INCR_REF(inp);
  432                 SCTP_INP_RUNLOCK(inp);
  433                 SCTP_INP_INFO_RUNLOCK();
  434                 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  435                 if (error) {
  436                         SCTP_INP_DECR_REF(inp);
  437                         return (error);
  438                 }
  439                 SCTP_INP_INFO_RLOCK();
  440                 SCTP_INP_RLOCK(inp);
  441                 error = sctp_sysctl_copy_out_local_addresses(inp, NULL, req);
  442                 if (error) {
  443                         SCTP_INP_DECR_REF(inp);
  444                         return (error);
  445                 }
  446                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
  447                         SCTP_TCB_LOCK(stcb);
  448                         atomic_add_int(&stcb->asoc.refcnt, 1);
  449                         SCTP_TCB_UNLOCK(stcb);
  450                         xstcb.last = 0;
  451                         xstcb.local_port = ntohs(inp->sctp_lport);
  452                         xstcb.remote_port = ntohs(stcb->rport);
  453                         if (stcb->asoc.primary_destination != NULL)
  454                                 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
  455                         xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
  456                         xstcb.state = SCTP_GET_STATE(&stcb->asoc);      /* FIXME */
  457                         /* 7.0 does not support these */
  458                         xstcb.assoc_id = sctp_get_associd(stcb);
  459                         xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
  460                         xstcb.in_streams = stcb->asoc.streamincnt;
  461                         xstcb.out_streams = stcb->asoc.streamoutcnt;
  462                         xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
  463                         xstcb.primary_process = 0;      /* not really supported
  464                                                          * yet */
  465                         xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
  466                         xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
  467                         xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
  468                         xstcb.start_time.tv_sec = (uint32_t) stcb->asoc.start_time.tv_sec;
  469                         xstcb.start_time.tv_usec = (uint32_t) stcb->asoc.start_time.tv_usec;
  470                         xstcb.discontinuity_time.tv_sec = (uint32_t) stcb->asoc.discontinuity_time.tv_sec;
  471                         xstcb.discontinuity_time.tv_usec = (uint32_t) stcb->asoc.discontinuity_time.tv_usec;
  472                         xstcb.total_sends = stcb->total_sends;
  473                         xstcb.total_recvs = stcb->total_recvs;
  474                         xstcb.local_tag = stcb->asoc.my_vtag;
  475                         xstcb.remote_tag = stcb->asoc.peer_vtag;
  476                         xstcb.initial_tsn = stcb->asoc.init_seq_number;
  477                         xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
  478                         xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
  479                         xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
  480                         xstcb.mtu = stcb->asoc.smallest_mtu;
  481                         xstcb.refcnt = stcb->asoc.refcnt;
  482                         SCTP_INP_RUNLOCK(inp);
  483                         SCTP_INP_INFO_RUNLOCK();
  484                         error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  485                         if (error) {
  486                                 SCTP_INP_DECR_REF(inp);
  487                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  488                                 return (error);
  489                         }
  490                         SCTP_INP_INFO_RLOCK();
  491                         SCTP_INP_RLOCK(inp);
  492                         error = sctp_sysctl_copy_out_local_addresses(inp, stcb, req);
  493                         if (error) {
  494                                 SCTP_INP_DECR_REF(inp);
  495                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  496                                 return (error);
  497                         }
  498                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
  499                                 xraddr.last = 0;
  500                                 xraddr.address = net->ro._l_addr;
  501                                 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
  502                                 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
  503                                 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
  504                                 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
  505                                 xraddr.rto = net->RTO;
  506                                 xraddr.max_path_rtx = net->failure_threshold;
  507                                 xraddr.rtx = net->marked_retrans;
  508                                 xraddr.error_counter = net->error_count;
  509                                 xraddr.cwnd = net->cwnd;
  510                                 xraddr.flight_size = net->flight_size;
  511                                 xraddr.mtu = net->mtu;
  512                                 xraddr.rtt = net->rtt / 1000;
  513                                 xraddr.heartbeat_interval = net->heart_beat_delay;
  514                                 xraddr.start_time.tv_sec = (uint32_t) net->start_time.tv_sec;
  515                                 xraddr.start_time.tv_usec = (uint32_t) net->start_time.tv_usec;
  516                                 SCTP_INP_RUNLOCK(inp);
  517                                 SCTP_INP_INFO_RUNLOCK();
  518                                 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  519                                 if (error) {
  520                                         SCTP_INP_DECR_REF(inp);
  521                                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  522                                         return (error);
  523                                 }
  524                                 SCTP_INP_INFO_RLOCK();
  525                                 SCTP_INP_RLOCK(inp);
  526                         }
  527                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
  528                         memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
  529                         xraddr.last = 1;
  530                         SCTP_INP_RUNLOCK(inp);
  531                         SCTP_INP_INFO_RUNLOCK();
  532                         error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
  533                         if (error) {
  534                                 SCTP_INP_DECR_REF(inp);
  535                                 return (error);
  536                         }
  537                         SCTP_INP_INFO_RLOCK();
  538                         SCTP_INP_RLOCK(inp);
  539                 }
  540                 SCTP_INP_DECR_REF(inp);
  541                 SCTP_INP_RUNLOCK(inp);
  542                 SCTP_INP_INFO_RUNLOCK();
  543                 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
  544                 xstcb.last = 1;
  545                 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
  546                 if (error) {
  547                         return (error);
  548                 }
  549 skip:
  550                 SCTP_INP_INFO_RLOCK();
  551         }
  552         SCTP_INP_INFO_RUNLOCK();
  553 
  554         memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
  555         xinpcb.last = 1;
  556         error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
  557         return (error);
  558 }
  559 
  560 static int
  561 sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS)
  562 {
  563         int error;
  564         uint32_t old, new;
  565 
  566         SCTP_INP_INFO_RLOCK();
  567         old = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
  568         SCTP_INP_INFO_RUNLOCK();
  569         new = old;
  570         error = sysctl_handle_int(oidp, &new, 0, req);
  571         if ((error == 0) &&
  572             (req->newptr != NULL)) {
  573 #if (SCTPCTL_UDP_TUNNELING_PORT_MIN == 0)
  574                 if (new > SCTPCTL_UDP_TUNNELING_PORT_MAX) {
  575 #else
  576                 if ((new < SCTPCTL_UDP_TUNNELING_PORT_MIN) ||
  577                     (new > SCTPCTL_UDP_TUNNELING_PORT_MAX)) {
  578 #endif
  579                         error = EINVAL;
  580                 } else {
  581                         SCTP_INP_INFO_WLOCK();
  582                         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = new;
  583                         if (old != 0) {
  584                                 sctp_over_udp_stop();
  585                         }
  586                         if (new != 0) {
  587                                 error = sctp_over_udp_start();
  588                         }
  589                         SCTP_INP_INFO_WUNLOCK();
  590                 }
  591         }
  592         return (error);
  593 }
  594 
  595 
  596 static int
  597 sctp_sysctl_handle_auth(SYSCTL_HANDLER_ARGS)
  598 {
  599         int error;
  600         uint32_t new;
  601 
  602         new = SCTP_BASE_SYSCTL(sctp_auth_disable);
  603         error = sysctl_handle_int(oidp, &new, 0, req);
  604         if ((error == 0) &&
  605             (req->newptr != NULL)) {
  606 #if (SCTPCTL_AUTH_DISABLE_MIN ==0)
  607                 if ((new > SCTPCTL_AUTH_DISABLE_MAX) ||
  608                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
  609 #else
  610                 if ((new < SCTPCTL_AUTH_DISABLE_MIN) ||
  611                     (new > SCTPCTL_AUTH_DISABLE_MAX) ||
  612                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
  613 #endif
  614                         error = EINVAL;
  615                 } else {
  616                         SCTP_BASE_SYSCTL(sctp_auth_disable) = new;
  617                 }
  618         }
  619         return (error);
  620 }
  621 
  622 static int
  623 sctp_sysctl_handle_asconf(SYSCTL_HANDLER_ARGS)
  624 {
  625         int error;
  626         uint32_t new;
  627 
  628         new = SCTP_BASE_SYSCTL(sctp_asconf_enable);
  629         error = sysctl_handle_int(oidp, &new, 0, req);
  630         if ((error == 0) &&
  631             (req->newptr != NULL)) {
  632 #if (SCTPCTL_ASCONF_ENABLE_MIN == 0)
  633                 if ((new > SCTPCTL_ASCONF_ENABLE_MAX) ||
  634                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_disable) == 1))) {
  635 #else
  636                 if ((new < SCTPCTL_ASCONF_ENABLE_MIN) ||
  637                     (new > SCTPCTL_ASCONF_ENABLE_MAX) ||
  638                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_disable) == 1))) {
  639 #endif
  640                         error = EINVAL;
  641                 } else {
  642                         SCTP_BASE_SYSCTL(sctp_asconf_enable) = new;
  643                 }
  644         }
  645         return (error);
  646 }
  647 
  648 static int
  649 sctp_sysctl_handle_stats(SYSCTL_HANDLER_ARGS)
  650 {
  651         int error;
  652 
  653 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
  654         struct sctpstat *sarry;
  655         struct sctpstat sb;
  656         int cpu;
  657 
  658 #endif
  659         struct sctpstat sb_temp;
  660 
  661         if ((req->newptr != NULL) &&
  662             (req->newlen != sizeof(struct sctpstat))) {
  663                 return (EINVAL);
  664         }
  665         memset(&sb_temp, 0, sizeof(struct sctpstat));
  666 
  667         if (req->newptr != NULL) {
  668                 error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat));
  669                 if (error != 0) {
  670                         return (error);
  671                 }
  672         }
  673 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
  674         memset(&sb, 0, sizeof(sb));
  675         for (cpu = 0; cpu < mp_maxid; cpu++) {
  676                 sarry = &SCTP_BASE_STATS[cpu];
  677                 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
  678                         sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
  679                         sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
  680                 }
  681                 sb.sctps_currestab += sarry->sctps_currestab;
  682                 sb.sctps_activeestab += sarry->sctps_activeestab;
  683                 sb.sctps_restartestab += sarry->sctps_restartestab;
  684                 sb.sctps_collisionestab += sarry->sctps_collisionestab;
  685                 sb.sctps_passiveestab += sarry->sctps_passiveestab;
  686                 sb.sctps_aborted += sarry->sctps_aborted;
  687                 sb.sctps_shutdown += sarry->sctps_shutdown;
  688                 sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
  689                 sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
  690                 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
  691                 sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
  692                 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
  693                 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
  694                 sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
  695                 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
  696                 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
  697                 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
  698                 sb.sctps_outpackets += sarry->sctps_outpackets;
  699                 sb.sctps_inpackets += sarry->sctps_inpackets;
  700                 sb.sctps_recvpackets += sarry->sctps_recvpackets;
  701                 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
  702                 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
  703                 sb.sctps_recvsacks += sarry->sctps_recvsacks;
  704                 sb.sctps_recvdata += sarry->sctps_recvdata;
  705                 sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
  706                 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
  707                 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
  708                 sb.sctps_recvecne += sarry->sctps_recvecne;
  709                 sb.sctps_recvauth += sarry->sctps_recvauth;
  710                 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
  711                 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
  712                 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
  713                 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
  714                 sb.sctps_recvexpress += sarry->sctps_recvexpress;
  715                 sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
  716                 sb.sctps_recvnocrc += sarry->sctps_recvnocrc;
  717                 sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
  718                 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
  719                 sb.sctps_sendpackets += sarry->sctps_sendpackets;
  720                 sb.sctps_sendsacks += sarry->sctps_sendsacks;
  721                 sb.sctps_senddata += sarry->sctps_senddata;
  722                 sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
  723                 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
  724                 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
  725                 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
  726                 sb.sctps_sendecne += sarry->sctps_sendecne;
  727                 sb.sctps_sendauth += sarry->sctps_sendauth;
  728                 sb.sctps_senderrors += sarry->sctps_senderrors;
  729                 sb.sctps_sendnocrc += sarry->sctps_sendnocrc;
  730                 sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
  731                 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
  732                 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
  733                 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
  734                 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
  735                 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
  736                 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
  737                 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
  738                 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
  739                 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
  740                 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
  741                 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
  742                 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
  743                 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
  744                 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
  745                 sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
  746                 sb.sctps_timoiterator += sarry->sctps_timoiterator;
  747                 sb.sctps_timodata += sarry->sctps_timodata;
  748                 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
  749                 sb.sctps_timoinit += sarry->sctps_timoinit;
  750                 sb.sctps_timosack += sarry->sctps_timosack;
  751                 sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
  752                 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
  753                 sb.sctps_timocookie += sarry->sctps_timocookie;
  754                 sb.sctps_timosecret += sarry->sctps_timosecret;
  755                 sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
  756                 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
  757                 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
  758                 sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
  759                 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
  760                 sb.sctps_timoasconf += sarry->sctps_timoasconf;
  761                 sb.sctps_timodelprim += sarry->sctps_timodelprim;
  762                 sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
  763                 sb.sctps_timoassockill += sarry->sctps_timoassockill;
  764                 sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
  765                 sb.sctps_hdrops += sarry->sctps_hdrops;
  766                 sb.sctps_badsum += sarry->sctps_badsum;
  767                 sb.sctps_noport += sarry->sctps_noport;
  768                 sb.sctps_badvtag += sarry->sctps_badvtag;
  769                 sb.sctps_badsid += sarry->sctps_badsid;
  770                 sb.sctps_nomem += sarry->sctps_nomem;
  771                 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
  772                 sb.sctps_markedretrans += sarry->sctps_markedretrans;
  773                 sb.sctps_naglesent += sarry->sctps_naglesent;
  774                 sb.sctps_naglequeued += sarry->sctps_naglequeued;
  775                 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
  776                 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
  777                 sb.sctps_windowprobed += sarry->sctps_windowprobed;
  778                 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
  779                 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
  780                 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
  781                 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
  782                 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
  783                 sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
  784                 sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
  785                 sb.sctps_primary_randry += sarry->sctps_primary_randry;
  786                 sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
  787                 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
  788                 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
  789                 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
  790                 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
  791                 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
  792                 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
  793                 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
  794                 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
  795                 sb.sctps_read_peeks += sarry->sctps_read_peeks;
  796                 sb.sctps_cached_chk += sarry->sctps_cached_chk;
  797                 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
  798                 sb.sctps_left_abandon += sarry->sctps_left_abandon;
  799                 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
  800                 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
  801                 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
  802                 if (req->newptr != NULL) {
  803                         memcpy(sarry, &sb_temp, sizeof(struct sctpstat));
  804                 }
  805         }
  806         error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat));
  807 #else
  808         error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat));
  809         if (error != 0) {
  810                 return (error);
  811         }
  812         if (req->newptr != NULL) {
  813                 memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat));
  814         }
  815 #endif
  816         return (error);
  817 }
  818 
  819 #if defined(SCTP_LOCAL_TRACE_BUF)
  820 static int
  821 sctp_sysctl_handle_trace_log(SYSCTL_HANDLER_ARGS)
  822 {
  823         int error;
  824 
  825         error = SYSCTL_OUT(req, &SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log));
  826         return (error);
  827 }
  828 
  829 static int
  830 sctp_sysctl_handle_trace_log_clear(SYSCTL_HANDLER_ARGS)
  831 {
  832         int error = 0;
  833 
  834         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
  835         return (error);
  836 }
  837 
  838 #endif
  839 
  840 #define SCTP_UINT_SYSCTL(mib_name, var_name, prefix)                    \
  841         static int                                                      \
  842         sctp_sysctl_handle_##mib_name(SYSCTL_HANDLER_ARGS)              \
  843         {                                                               \
  844                 int error;                                              \
  845                 uint32_t new;                                           \
  846                                                                         \
  847                 new = SCTP_BASE_SYSCTL(var_name);                       \
  848                 error = sysctl_handle_int(oidp, &new, 0, req);          \
  849                 if ((error == 0) && (req->newptr != NULL)) {            \
  850                         if ((new < prefix##_MIN) ||                     \
  851                             (new > prefix##_MAX)) {                     \
  852                                 error = EINVAL;                         \
  853                         } else {                                        \
  854                                 SCTP_BASE_SYSCTL(var_name) = new;       \
  855                         }                                               \
  856                 }                                                       \
  857                 return (error);                                         \
  858         }                                                               \
  859         SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name,                 \
  860                          CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW, NULL, 0, \
  861                          sctp_sysctl_handle_##mib_name, "UI", prefix##_DESC);
  862 
  863 /*
  864  * sysctl definitions
  865  */
  866 
  867 SCTP_UINT_SYSCTL(sendspace, sctp_sendspace, SCTPCTL_MAXDGRAM)
  868 SCTP_UINT_SYSCTL(recvspace, sctp_recvspace, SCTPCTL_RECVSPACE)
  869 SCTP_UINT_SYSCTL(auto_asconf, sctp_auto_asconf, SCTPCTL_AUTOASCONF)
  870 SCTP_UINT_SYSCTL(ecn_enable, sctp_ecn_enable, SCTPCTL_ECN_ENABLE)
  871 SCTP_UINT_SYSCTL(pr_enable, sctp_pr_enable, SCTPCTL_PR_ENABLE)
  872 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_disable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  873     NULL, 0, sctp_sysctl_handle_auth, "IU", SCTPCTL_AUTH_DISABLE_DESC);
  874 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  875     NULL, 0, sctp_sysctl_handle_asconf, "IU", SCTPCTL_ASCONF_ENABLE_DESC);
  876 SCTP_UINT_SYSCTL(reconfig_enable, sctp_reconfig_enable, SCTPCTL_RECONFIG_ENABLE)
  877 SCTP_UINT_SYSCTL(nr_sack_on_off, sctp_nrsack_enable, SCTPCTL_NRSACK_ENABLE)
  878 SCTP_UINT_SYSCTL(pktdrop_enable, sctp_pktdrop_enable, SCTPCTL_PKTDROP_ENABLE)
  879 SCTP_UINT_SYSCTL(strict_sacks, sctp_strict_sacks, SCTPCTL_STRICT_SACKS)
  880 SCTP_UINT_SYSCTL(peer_chkoh, sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH)
  881 SCTP_UINT_SYSCTL(maxburst, sctp_max_burst_default, SCTPCTL_MAXBURST)
  882 SCTP_UINT_SYSCTL(fr_maxburst, sctp_fr_max_burst_default, SCTPCTL_FRMAXBURST)
  883 SCTP_UINT_SYSCTL(maxchunks, sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS)
  884 SCTP_UINT_SYSCTL(tcbhashsize, sctp_hashtblsize, SCTPCTL_TCBHASHSIZE)
  885 SCTP_UINT_SYSCTL(pcbhashsize, sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE)
  886 SCTP_UINT_SYSCTL(min_split_point, sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT)
  887 SCTP_UINT_SYSCTL(chunkscale, sctp_chunkscale, SCTPCTL_CHUNKSCALE)
  888 SCTP_UINT_SYSCTL(delayed_sack_time, sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME)
  889 SCTP_UINT_SYSCTL(sack_freq, sctp_sack_freq_default, SCTPCTL_SACK_FREQ)
  890 SCTP_UINT_SYSCTL(sys_resource, sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE)
  891 SCTP_UINT_SYSCTL(asoc_resource, sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE)
  892 SCTP_UINT_SYSCTL(heartbeat_interval, sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL)
  893 SCTP_UINT_SYSCTL(pmtu_raise_time, sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME)
  894 SCTP_UINT_SYSCTL(shutdown_guard_time, sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME)
  895 SCTP_UINT_SYSCTL(secret_lifetime, sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME)
  896 SCTP_UINT_SYSCTL(rto_max, sctp_rto_max_default, SCTPCTL_RTO_MAX)
  897 SCTP_UINT_SYSCTL(rto_min, sctp_rto_min_default, SCTPCTL_RTO_MIN)
  898 SCTP_UINT_SYSCTL(rto_initial, sctp_rto_initial_default, SCTPCTL_RTO_INITIAL)
  899 SCTP_UINT_SYSCTL(init_rto_max, sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX)
  900 SCTP_UINT_SYSCTL(valid_cookie_life, sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE)
  901 SCTP_UINT_SYSCTL(init_rtx_max, sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX)
  902 SCTP_UINT_SYSCTL(assoc_rtx_max, sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX)
  903 SCTP_UINT_SYSCTL(path_rtx_max, sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX)
  904 SCTP_UINT_SYSCTL(path_pf_threshold, sctp_path_pf_threshold, SCTPCTL_PATH_PF_THRESHOLD)
  905 SCTP_UINT_SYSCTL(add_more_on_output, sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT)
  906 SCTP_UINT_SYSCTL(incoming_streams, sctp_nr_incoming_streams_default, SCTPCTL_INCOMING_STREAMS)
  907 SCTP_UINT_SYSCTL(outgoing_streams, sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS)
  908 SCTP_UINT_SYSCTL(cmt_on_off, sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF)
  909 SCTP_UINT_SYSCTL(cmt_use_dac, sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC)
  910 SCTP_UINT_SYSCTL(cwnd_maxburst, sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST)
  911 SCTP_UINT_SYSCTL(nat_friendly, sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY)
  912 SCTP_UINT_SYSCTL(abc_l_var, sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR)
  913 SCTP_UINT_SYSCTL(max_chained_mbufs, sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS)
  914 SCTP_UINT_SYSCTL(do_sctp_drain, sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN)
  915 SCTP_UINT_SYSCTL(hb_max_burst, sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST)
  916 SCTP_UINT_SYSCTL(abort_at_limit, sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT)
  917 SCTP_UINT_SYSCTL(strict_data_order, sctp_strict_data_order, SCTPCTL_STRICT_DATA_ORDER)
  918 SCTP_UINT_SYSCTL(min_residual, sctp_min_residual, SCTPCTL_MIN_RESIDUAL)
  919 SCTP_UINT_SYSCTL(max_retran_chunk, sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK)
  920 SCTP_UINT_SYSCTL(log_level, sctp_logging_level, SCTPCTL_LOGGING_LEVEL)
  921 SCTP_UINT_SYSCTL(default_cc_module, sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE)
  922 SCTP_UINT_SYSCTL(default_ss_module, sctp_default_ss_module, SCTPCTL_DEFAULT_SS_MODULE)
  923 SCTP_UINT_SYSCTL(default_frag_interleave, sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE)
  924 SCTP_UINT_SYSCTL(mobility_base, sctp_mobility_base, SCTPCTL_MOBILITY_BASE)
  925 SCTP_UINT_SYSCTL(mobility_fasthandoff, sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF)
  926 #if defined(SCTP_LOCAL_TRACE_BUF)
  927 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RD,
  928     NULL, 0, sctp_sysctl_handle_trace_log, "S,sctplog", "SCTP logging (struct sctp_log)");
  929 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  930     NULL, 0, sctp_sysctl_handle_trace_log_clear, "IU", "Clear SCTP Logging buffer");
  931 #endif
  932 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
  933     NULL, 0, sctp_sysctl_handle_udp_tunneling, "IU", SCTPCTL_UDP_TUNNELING_PORT_DESC);
  934 SCTP_UINT_SYSCTL(enable_sack_immediately, sctp_enable_sack_immediately, SCTPCTL_SACK_IMMEDIATELY_ENABLE)
  935 SCTP_UINT_SYSCTL(nat_friendly_init, sctp_inits_include_nat_friendly, SCTPCTL_NAT_FRIENDLY_INITS)
  936 SCTP_UINT_SYSCTL(vtag_time_wait, sctp_vtag_time_wait, SCTPCTL_TIME_WAIT)
  937 SCTP_UINT_SYSCTL(buffer_splitting, sctp_buffer_splitting, SCTPCTL_BUFFER_SPLITTING)
  938 SCTP_UINT_SYSCTL(initial_cwnd, sctp_initial_cwnd, SCTPCTL_INITIAL_CWND)
  939 SCTP_UINT_SYSCTL(rttvar_bw, sctp_rttvar_bw, SCTPCTL_RTTVAR_BW)
  940 SCTP_UINT_SYSCTL(rttvar_rtt, sctp_rttvar_rtt, SCTPCTL_RTTVAR_RTT)
  941 SCTP_UINT_SYSCTL(rttvar_eqret, sctp_rttvar_eqret, SCTPCTL_RTTVAR_EQRET)
  942 SCTP_UINT_SYSCTL(rttvar_steady_step, sctp_steady_step, SCTPCTL_RTTVAR_STEADYS)
  943 SCTP_UINT_SYSCTL(use_dcccecn, sctp_use_dccc_ecn, SCTPCTL_RTTVAR_DCCCECN)
  944 SCTP_UINT_SYSCTL(blackhole, sctp_blackhole, SCTPCTL_BLACKHOLE)
  945 SCTP_UINT_SYSCTL(diag_info_code, sctp_diag_info_code, SCTPCTL_DIAG_INFO_CODE)
  946 #ifdef SCTP_DEBUG
  947 SCTP_UINT_SYSCTL(debug, sctp_debug_on, SCTPCTL_DEBUG)
  948 #endif
  949 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  950 SCTP_UINT_SYSCTL(output_unlocked, sctp_output_unlocked, SCTPCTL_OUTPUT_UNLOCKED)
  951 #endif
  952 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RW,
  953     NULL, 0, sctp_sysctl_handle_stats, "S,sctpstat", "SCTP statistics (struct sctp_stat)");
  954 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_VNET | CTLTYPE_OPAQUE | CTLFLAG_RD,
  955     NULL, 0, sctp_sysctl_handle_assoclist, "S,xassoc", "List of active SCTP associations");

Cache object: ad5a900fb6fb41f0d127e8ae63e635b5


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