sys/netinet/sctp_sysctl.c

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