sys/netinet/sctp_sysctl.c

   1 /*-
   2  * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2011, 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("$FreeBSD$");
  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
  45 /*
  46  * sysctl tunable variables
  47  */
  48
  49 void
  50 sctp_init_sysctls()
  51 {
  52         SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
  53         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
  54         SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
  55         SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
  56         SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
  57         SCTP_BASE_SYSCTL(sctp_strict_sacks) = SCTPCTL_STRICT_SACKS_DEFAULT;
  58 #if !defined(SCTP_WITH_NO_CSUM)
  59         SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) = SCTPCTL_LOOPBACK_NOCSUM_DEFAULT;
  60 #endif
  61         SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
  62         SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
  63         SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
  64         SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
  65         SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
  66         SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
  67         SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
  68         SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
  69         SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
  70         SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
  71         SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
  72         SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
  73         SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
  74         SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
  75         SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
  76         SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
  77         SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
  78         SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
  79         SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
  80         SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
  81         SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
  82         SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
  83         SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
  84         SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
  85         SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
  86         SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
  87         SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
  88         SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
  89         /* EY */
  90         SCTP_BASE_SYSCTL(sctp_nr_sack_on_off) = SCTPCTL_NR_SACK_ON_OFF_DEFAULT;
  91         SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
  92         SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
  93         SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk) = SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT;
  94         SCTP_BASE_SYSCTL(sctp_auth_disable) = SCTPCTL_AUTH_DISABLE_DEFAULT;
  95         SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
  96         SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
  97         SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
  98         SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
  99         SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
 100         SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
 101         SCTP_BASE_SYSCTL(sctp_strict_data_order) = SCTPCTL_STRICT_DATA_ORDER_DEFAULT;
 102         SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
 103         SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
 104         SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
 105         /* JRS - Variable for default congestion control module */
 106         SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
 107         /* RS - Variable for default stream scheduling module */
 108         SCTP_BASE_SYSCTL(sctp_default_ss_module) = SCTPCTL_DEFAULT_SS_MODULE_DEFAULT;
 109         SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
 110         SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT;
 111         SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
 112         SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT;
 113         SCTP_BASE_SYSCTL(sctp_buffer_splitting) = SCTPCTL_BUFFER_SPLITTING_DEFAULT;
 114         SCTP_BASE_SYSCTL(sctp_initial_cwnd) = SCTPCTL_INITIAL_CWND_DEFAULT;
 115         SCTP_BASE_SYSCTL(sctp_rttvar_bw) = SCTPCTL_RTTVAR_BW_DEFAULT;
 116         SCTP_BASE_SYSCTL(sctp_rttvar_rtt) = SCTPCTL_RTTVAR_RTT_DEFAULT;
 117         SCTP_BASE_SYSCTL(sctp_rttvar_eqret) = SCTPCTL_RTTVAR_EQRET_DEFAULT;
 118         SCTP_BASE_SYSCTL(sctp_steady_step) = SCTPCTL_RTTVAR_STEADYS_DEFAULT;
 119         SCTP_BASE_SYSCTL(sctp_use_dccc_ecn) = SCTPCTL_RTTVAR_DCCCECN_DEFAULT;
 120         SCTP_BASE_SYSCTL(sctp_blackhole) = SCTPCTL_BLACKHOLE_DEFAULT;
 121
 122 #if defined(SCTP_LOCAL_TRACE_BUF)
 123         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
 124 #endif
 125         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
 126         SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
 127         SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
 128 #if defined(SCTP_DEBUG)
 129         SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
 130 #endif
 131 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 132         SCTP_BASE_SYSCTL(sctp_output_unlocked) = SCTPCTL_OUTPUT_UNLOCKED_DEFAULT;
 133 #endif
 134 }
 135
 136
 137 /* It returns an upper limit. No filtering is done here */
 138 static unsigned int
 139 number_of_addresses(struct sctp_inpcb *inp)
 140 {
 141         unsigned int cnt;
 142         struct sctp_vrf *vrf;
 143         struct sctp_ifn *sctp_ifn;
 144         struct sctp_ifa *sctp_ifa;
 145         struct sctp_laddr *laddr;
 146
 147         cnt = 0;
 148         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
 149         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
 150                 return (0);
 151         }
 152         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 153                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 154                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 155                                 switch (sctp_ifa->address.sa.sa_family) {
 156 #ifdef INET
 157                                 case AF_INET:
 158 #endif
 159 #ifdef INET6
 160                                 case AF_INET6:
 161 #endif
 162                                         cnt++;
 163                                         break;
 164                                 default:
 165                                         break;
 166                                 }
 167                         }
 168                 }
 169         } else {
 170                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 171                         switch (laddr->ifa->address.sa.sa_family) {
 172 #ifdef INET
 173                         case AF_INET:
 174 #endif
 175 #ifdef INET6
 176                         case AF_INET6:
 177 #endif
 178                                 cnt++;
 179                                 break;
 180                         default:
 181                                 break;
 182                         }
 183                 }
 184         }
 185         return (cnt);
 186 }
 187
 188 static int
 189 copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
 190 {
 191         struct sctp_ifn *sctp_ifn;
 192         struct sctp_ifa *sctp_ifa;
 193         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
 194         int ipv4_addr_legal, ipv6_addr_legal;
 195         struct sctp_vrf *vrf;
 196         struct xsctp_laddr xladdr;
 197         struct sctp_laddr *laddr;
 198         int error;
 199
 200         /* Turn on all the appropriate scope */
 201         if (stcb) {
 202                 /* use association specific values */
 203                 loopback_scope = stcb->asoc.loopback_scope;
 204                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
 205                 local_scope = stcb->asoc.local_scope;
 206                 site_scope = stcb->asoc.site_scope;
 207         } else {
 208                 /* use generic values for endpoints */
 209                 loopback_scope = 1;
 210                 ipv4_local_scope = 1;
 211                 local_scope = 1;
 212                 site_scope = 1;
 213         }
 214
 215         /* use only address families of interest */
 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                 ipv4_addr_legal = 1;
 225                 ipv6_addr_legal = 0;
 226         }
 227
 228         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
 229         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
 230                 SCTP_INP_RUNLOCK(inp);
 231                 SCTP_INP_INFO_RUNLOCK();
 232                 return (-1);
 233         }
 234         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 235                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 236                         if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn))
 237                                 /* Skip loopback if loopback_scope not set */
 238                                 continue;
 239                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 240                                 if (stcb) {
 241                                         /*
 242                                          * ignore if blacklisted at
 243                                          * association level
 244                                          */
 245                                         if (sctp_is_addr_restricted(stcb, sctp_ifa))
 246                                                 continue;
 247                                 }
 248                                 switch (sctp_ifa->address.sa.sa_family) {
 249 #ifdef INET
 250                                 case AF_INET:
 251                                         if (ipv4_addr_legal) {
 252                                                 struct sockaddr_in *sin;
 253
 254                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
 255                                                 if (sin->sin_addr.s_addr == 0)
 256                                                         continue;
 257                                                 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr)))
 258                                                         continue;
 259                                         } else {
 260                                                 continue;
 261                                         }
 262                                         break;
 263 #endif
 264 #ifdef INET6
 265                                 case AF_INET6:
 266                                         if (ipv6_addr_legal) {
 267                                                 struct sockaddr_in6 *sin6;
 268
 269                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
 270                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
 271                                                         continue;
 272                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 273                                                         if (local_scope == 0)
 274                                                                 continue;
 275                                                         if (sin6->sin6_scope_id == 0) {
 276                                                                 /*
 277                                                                  * bad link
 278                                                                  * local
 279                                                                  * address
 280                                                                  */
 281                                                                 if (sa6_recoverscope(sin6) != 0)
 282                                                                         continue;
 283                                                         }
 284                                                 }
 285                                                 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
 286                                                         continue;
 287                                         } else {
 288                                                 continue;
 289                                         }
 290                                         break;
 291 #endif
 292                                 default:
 293                                         continue;
 294                                 }
 295                                 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 296                                 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
 297                                 SCTP_INP_RUNLOCK(inp);
 298                                 SCTP_INP_INFO_RUNLOCK();
 299                                 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 300                                 if (error) {
 301                                         return (error);
 302                                 } else {
 303                                         SCTP_INP_INFO_RLOCK();
 304                                         SCTP_INP_RLOCK(inp);
 305                                 }
 306                         }
 307                 }
 308         } else {
 309                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 310                         /* ignore if blacklisted at association level */
 311                         if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
 312                                 continue;
 313                         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 314                         memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
 315                         xladdr.start_time.tv_sec = (uint32_t) laddr->start_time.tv_sec;
 316                         xladdr.start_time.tv_usec = (uint32_t) laddr->start_time.tv_usec;
 317                         SCTP_INP_RUNLOCK(inp);
 318                         SCTP_INP_INFO_RUNLOCK();
 319                         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 320                         if (error) {
 321                                 return (error);
 322                         } else {
 323                                 SCTP_INP_INFO_RLOCK();
 324                                 SCTP_INP_RLOCK(inp);
 325                         }
 326                 }
 327         }
 328         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 329         xladdr.last = 1;
 330         SCTP_INP_RUNLOCK(inp);
 331         SCTP_INP_INFO_RUNLOCK();
 332         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 333
 334         if (error) {
 335                 return (error);
 336         } else {
 337                 SCTP_INP_INFO_RLOCK();
 338                 SCTP_INP_RLOCK(inp);
 339                 return (0);
 340         }
 341 }
 342
 343 /*
 344  * sysctl functions
 345  */
 346 static int
 347 sctp_assoclist(SYSCTL_HANDLER_ARGS)
 348 {
 349         unsigned int number_of_endpoints;
 350         unsigned int number_of_local_addresses;
 351         unsigned int number_of_associations;
 352         unsigned int number_of_remote_addresses;
 353         unsigned int n;
 354         int error;
 355         struct sctp_inpcb *inp;
 356         struct sctp_tcb *stcb;
 357         struct sctp_nets *net;
 358         struct xsctp_inpcb xinpcb;
 359         struct xsctp_tcb xstcb;
 360         struct xsctp_raddr xraddr;
 361         struct socket *so;
 362
 363         number_of_endpoints = 0;
 364         number_of_local_addresses = 0;
 365         number_of_associations = 0;
 366         number_of_remote_addresses = 0;
 367
 368         SCTP_INP_INFO_RLOCK();
 369         if (req->oldptr == USER_ADDR_NULL) {
 370                 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
 371                         SCTP_INP_RLOCK(inp);
 372                         number_of_endpoints++;
 373                         number_of_local_addresses += number_of_addresses(inp);
 374                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 375                                 number_of_associations++;
 376                                 number_of_local_addresses += number_of_addresses(inp);
 377                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 378                                         number_of_remote_addresses++;
 379                                 }
 380                         }
 381                         SCTP_INP_RUNLOCK(inp);
 382                 }
 383                 SCTP_INP_INFO_RUNLOCK();
 384                 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
 385                     (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
 386                     (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
 387                     (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
 388
 389                 /* request some more memory than needed */
 390                 req->oldidx = (n + n / 8);
 391                 return (0);
 392         }
 393         if (req->newptr != USER_ADDR_NULL) {
 394                 SCTP_INP_INFO_RUNLOCK();
 395                 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
 396                 return (EPERM);
 397         }
 398         LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
 399                 SCTP_INP_RLOCK(inp);
 400                 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
 401                         /* if its allgone it is being freed - skip it  */
 402                         goto skip;
 403                 }
 404                 xinpcb.last = 0;
 405                 xinpcb.local_port = ntohs(inp->sctp_lport);
 406                 xinpcb.flags = inp->sctp_flags;
 407                 xinpcb.features = inp->sctp_features;
 408                 xinpcb.total_sends = inp->total_sends;
 409                 xinpcb.total_recvs = inp->total_recvs;
 410                 xinpcb.total_nospaces = inp->total_nospaces;
 411                 xinpcb.fragmentation_point = inp->sctp_frag_point;
 412                 so = inp->sctp_socket;
 413                 if ((so == NULL) ||
 414                     (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 415                         xinpcb.qlen = 0;
 416                         xinpcb.maxqlen = 0;
 417                 } else {
 418                         xinpcb.qlen = so->so_qlen;
 419                         xinpcb.maxqlen = so->so_qlimit;
 420                 }
 421                 SCTP_INP_INCR_REF(inp);
 422                 SCTP_INP_RUNLOCK(inp);
 423                 SCTP_INP_INFO_RUNLOCK();
 424                 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
 425                 if (error) {
 426                         SCTP_INP_DECR_REF(inp);
 427                         return (error);
 428                 }
 429                 SCTP_INP_INFO_RLOCK();
 430                 SCTP_INP_RLOCK(inp);
 431                 error = copy_out_local_addresses(inp, NULL, req);
 432                 if (error) {
 433                         SCTP_INP_DECR_REF(inp);
 434                         return (error);
 435                 }
 436                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 437                         SCTP_TCB_LOCK(stcb);
 438                         atomic_add_int(&stcb->asoc.refcnt, 1);
 439                         SCTP_TCB_UNLOCK(stcb);
 440                         xstcb.last = 0;
 441                         xstcb.local_port = ntohs(inp->sctp_lport);
 442                         xstcb.remote_port = ntohs(stcb->rport);
 443                         if (stcb->asoc.primary_destination != NULL)
 444                                 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
 445                         xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
 446                         xstcb.state = SCTP_GET_STATE(&stcb->asoc);      /* FIXME */
 447                         /* 7.0 does not support these */
 448                         xstcb.assoc_id = sctp_get_associd(stcb);
 449                         xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
 450                         xstcb.in_streams = stcb->asoc.streamincnt;
 451                         xstcb.out_streams = stcb->asoc.streamoutcnt;
 452                         xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
 453                         xstcb.primary_process = 0;      /* not really supported
 454                                                          * yet */
 455                         xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
 456                         xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
 457                         xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
 458                         xstcb.start_time.tv_sec = (uint32_t) stcb->asoc.start_time.tv_sec;
 459                         xstcb.start_time.tv_usec = (uint32_t) stcb->asoc.start_time.tv_usec;
 460                         xstcb.discontinuity_time.tv_sec = (uint32_t) stcb->asoc.discontinuity_time.tv_sec;
 461                         xstcb.discontinuity_time.tv_usec = (uint32_t) stcb->asoc.discontinuity_time.tv_usec;
 462                         xstcb.total_sends = stcb->total_sends;
 463                         xstcb.total_recvs = stcb->total_recvs;
 464                         xstcb.local_tag = stcb->asoc.my_vtag;
 465                         xstcb.remote_tag = stcb->asoc.peer_vtag;
 466                         xstcb.initial_tsn = stcb->asoc.init_seq_number;
 467                         xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
 468                         xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
 469                         xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
 470                         xstcb.mtu = stcb->asoc.smallest_mtu;
 471                         xstcb.refcnt = stcb->asoc.refcnt;
 472                         SCTP_INP_RUNLOCK(inp);
 473                         SCTP_INP_INFO_RUNLOCK();
 474                         error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
 475                         if (error) {
 476                                 SCTP_INP_DECR_REF(inp);
 477                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 478                                 return (error);
 479                         }
 480                         SCTP_INP_INFO_RLOCK();
 481                         SCTP_INP_RLOCK(inp);
 482                         error = copy_out_local_addresses(inp, stcb, req);
 483                         if (error) {
 484                                 SCTP_INP_DECR_REF(inp);
 485                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 486                                 return (error);
 487                         }
 488                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 489                                 xraddr.last = 0;
 490                                 xraddr.address = net->ro._l_addr;
 491                                 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
 492                                 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
 493                                 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
 494                                 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
 495                                 xraddr.rto = net->RTO;
 496                                 xraddr.max_path_rtx = net->failure_threshold;
 497                                 xraddr.rtx = net->marked_retrans;
 498                                 xraddr.error_counter = net->error_count;
 499                                 xraddr.cwnd = net->cwnd;
 500                                 xraddr.flight_size = net->flight_size;
 501                                 xraddr.mtu = net->mtu;
 502                                 xraddr.rtt = net->rtt / 1000;
 503                                 xraddr.heartbeat_interval = net->heart_beat_delay;
 504                                 xraddr.start_time.tv_sec = (uint32_t) net->start_time.tv_sec;
 505                                 xraddr.start_time.tv_usec = (uint32_t) net->start_time.tv_usec;
 506                                 SCTP_INP_RUNLOCK(inp);
 507                                 SCTP_INP_INFO_RUNLOCK();
 508                                 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
 509                                 if (error) {
 510                                         SCTP_INP_DECR_REF(inp);
 511                                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
 512                                         return (error);
 513                                 }
 514                                 SCTP_INP_INFO_RLOCK();
 515                                 SCTP_INP_RLOCK(inp);
 516                         }
 517                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
 518                         memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
 519                         xraddr.last = 1;
 520                         SCTP_INP_RUNLOCK(inp);
 521                         SCTP_INP_INFO_RUNLOCK();
 522                         error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
 523                         if (error) {
 524                                 SCTP_INP_DECR_REF(inp);
 525                                 return (error);
 526                         }
 527                         SCTP_INP_INFO_RLOCK();
 528                         SCTP_INP_RLOCK(inp);
 529                 }
 530                 SCTP_INP_DECR_REF(inp);
 531                 SCTP_INP_RUNLOCK(inp);
 532                 SCTP_INP_INFO_RUNLOCK();
 533                 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
 534                 xstcb.last = 1;
 535                 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
 536                 if (error) {
 537                         return (error);
 538                 }
 539 skip:
 540                 SCTP_INP_INFO_RLOCK();
 541         }
 542         SCTP_INP_INFO_RUNLOCK();
 543
 544         memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
 545         xinpcb.last = 1;
 546         error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
 547         return (error);
 548 }
 549
 550
 551 #define RANGECHK(var, min, max) \
 552         if ((var) < (min)) { (var) = (min); } \
 553         else if ((var) > (max)) { (var) = (max); }
 554
 555 /* XXX: Remove the #if after tunneling over IPv6 works also on FreeBSD. */
 556 #if !defined(__FreeBSD__) || defined(INET)
 557 static int
 558 sysctl_sctp_udp_tunneling_check(SYSCTL_HANDLER_ARGS)
 559 {
 560         int error;
 561         uint32_t old_sctp_udp_tunneling_port;
 562
 563         SCTP_INP_INFO_RLOCK();
 564         old_sctp_udp_tunneling_port = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
 565         SCTP_INP_INFO_RUNLOCK();
 566         error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
 567         if (error == 0) {
 568                 RANGECHK(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), SCTPCTL_UDP_TUNNELING_PORT_MIN, SCTPCTL_UDP_TUNNELING_PORT_MAX);
 569                 if (old_sctp_udp_tunneling_port == SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
 570                         error = 0;
 571                         goto out;
 572                 }
 573                 SCTP_INP_INFO_WLOCK();
 574                 if (old_sctp_udp_tunneling_port) {
 575                         sctp_over_udp_stop();
 576                 }
 577                 if (SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
 578                         if (sctp_over_udp_start()) {
 579                                 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = 0;
 580                         }
 581                 }
 582                 SCTP_INP_INFO_WUNLOCK();
 583         }
 584 out:
 585         return (error);
 586 }
 587
 588 #endif
 589
 590
 591 static int
 592 sysctl_sctp_check(SYSCTL_HANDLER_ARGS)
 593 {
 594         int error;
 595
 596 #ifdef VIMAGE
 597         error = vnet_sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
 598 #else
 599         error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
 600 #endif
 601         if (error == 0) {
 602                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sendspace), SCTPCTL_MAXDGRAM_MIN, SCTPCTL_MAXDGRAM_MAX);
 603                 RANGECHK(SCTP_BASE_SYSCTL(sctp_recvspace), SCTPCTL_RECVSPACE_MIN, SCTPCTL_RECVSPACE_MAX);
 604                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auto_asconf), SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
 605                 RANGECHK(SCTP_BASE_SYSCTL(sctp_ecn_enable), SCTPCTL_ECN_ENABLE_MIN, SCTPCTL_ECN_ENABLE_MAX);
 606                 RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_sacks), SCTPCTL_STRICT_SACKS_MIN, SCTPCTL_STRICT_SACKS_MAX);
 607 #if !defined(SCTP_WITH_NO_CSUM)
 608                 RANGECHK(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), SCTPCTL_LOOPBACK_NOCSUM_MIN, SCTPCTL_LOOPBACK_NOCSUM_MAX);
 609 #endif
 610                 RANGECHK(SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), SCTPCTL_PEER_CHKOH_MIN, SCTPCTL_PEER_CHKOH_MAX);
 611                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_burst_default), SCTPCTL_MAXBURST_MIN, SCTPCTL_MAXBURST_MAX);
 612                 RANGECHK(SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), SCTPCTL_FRMAXBURST_MIN, SCTPCTL_FRMAXBURST_MAX);
 613                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), SCTPCTL_MAXCHUNKS_MIN, SCTPCTL_MAXCHUNKS_MAX);
 614                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hashtblsize), SCTPCTL_TCBHASHSIZE_MIN, SCTPCTL_TCBHASHSIZE_MAX);
 615                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pcbtblsize), SCTPCTL_PCBHASHSIZE_MIN, SCTPCTL_PCBHASHSIZE_MAX);
 616                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_split_point), SCTPCTL_MIN_SPLIT_POINT_MIN, SCTPCTL_MIN_SPLIT_POINT_MAX);
 617                 RANGECHK(SCTP_BASE_SYSCTL(sctp_chunkscale), SCTPCTL_CHUNKSCALE_MIN, SCTPCTL_CHUNKSCALE_MAX);
 618                 RANGECHK(SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), SCTPCTL_DELAYED_SACK_TIME_MIN, SCTPCTL_DELAYED_SACK_TIME_MAX);
 619                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sack_freq_default), SCTPCTL_SACK_FREQ_MIN, SCTPCTL_SACK_FREQ_MAX);
 620                 RANGECHK(SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), SCTPCTL_SYS_RESOURCE_MIN, SCTPCTL_SYS_RESOURCE_MAX);
 621                 RANGECHK(SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), SCTPCTL_ASOC_RESOURCE_MIN, SCTPCTL_ASOC_RESOURCE_MAX);
 622                 RANGECHK(SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), SCTPCTL_HEARTBEAT_INTERVAL_MIN, SCTPCTL_HEARTBEAT_INTERVAL_MAX);
 623                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), SCTPCTL_PMTU_RAISE_TIME_MIN, SCTPCTL_PMTU_RAISE_TIME_MAX);
 624                 RANGECHK(SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), SCTPCTL_SHUTDOWN_GUARD_TIME_MIN, SCTPCTL_SHUTDOWN_GUARD_TIME_MAX);
 625                 RANGECHK(SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), SCTPCTL_SECRET_LIFETIME_MIN, SCTPCTL_SECRET_LIFETIME_MAX);
 626                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_max_default), SCTPCTL_RTO_MAX_MIN, SCTPCTL_RTO_MAX_MAX);
 627                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_min_default), SCTPCTL_RTO_MIN_MIN, SCTPCTL_RTO_MIN_MAX);
 628                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_initial_default), SCTPCTL_RTO_INITIAL_MIN, SCTPCTL_RTO_INITIAL_MAX);
 629                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rto_max_default), SCTPCTL_INIT_RTO_MAX_MIN, SCTPCTL_INIT_RTO_MAX_MAX);
 630                 RANGECHK(SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), SCTPCTL_VALID_COOKIE_LIFE_MIN, SCTPCTL_VALID_COOKIE_LIFE_MAX);
 631                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), SCTPCTL_INIT_RTX_MAX_MIN, SCTPCTL_INIT_RTX_MAX_MAX);
 632                 RANGECHK(SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), SCTPCTL_ASSOC_RTX_MAX_MIN, SCTPCTL_ASSOC_RTX_MAX_MAX);
 633                 RANGECHK(SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), SCTPCTL_PATH_RTX_MAX_MIN, SCTPCTL_PATH_RTX_MAX_MAX);
 634                 RANGECHK(SCTP_BASE_SYSCTL(sctp_path_pf_threshold), SCTPCTL_PATH_PF_THRESHOLD_MIN, SCTPCTL_PATH_PF_THRESHOLD_MAX);
 635                 RANGECHK(SCTP_BASE_SYSCTL(sctp_add_more_threshold), SCTPCTL_ADD_MORE_ON_OUTPUT_MIN, SCTPCTL_ADD_MORE_ON_OUTPUT_MAX);
 636                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), SCTPCTL_OUTGOING_STREAMS_MIN, SCTPCTL_OUTGOING_STREAMS_MAX);
 637                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_on_off), SCTPCTL_CMT_ON_OFF_MIN, SCTPCTL_CMT_ON_OFF_MAX);
 638                 /* EY */
 639                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), SCTPCTL_NR_SACK_ON_OFF_MIN, SCTPCTL_NR_SACK_ON_OFF_MAX);
 640                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_use_dac), SCTPCTL_CMT_USE_DAC_MIN, SCTPCTL_CMT_USE_DAC_MAX);
 641                 RANGECHK(SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), SCTPCTL_CWND_MAXBURST_MIN, SCTPCTL_CWND_MAXBURST_MAX);
 642                 RANGECHK(SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), SCTPCTL_ASCONF_AUTH_NOCHK_MIN, SCTPCTL_ASCONF_AUTH_NOCHK_MAX);
 643                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auth_disable), SCTPCTL_AUTH_DISABLE_MIN, SCTPCTL_AUTH_DISABLE_MAX);
 644                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nat_friendly), SCTPCTL_NAT_FRIENDLY_MIN, SCTPCTL_NAT_FRIENDLY_MAX);
 645                 RANGECHK(SCTP_BASE_SYSCTL(sctp_L2_abc_variable), SCTPCTL_ABC_L_VAR_MIN, SCTPCTL_ABC_L_VAR_MAX);
 646                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), SCTPCTL_MAX_CHAINED_MBUFS_MIN, SCTPCTL_MAX_CHAINED_MBUFS_MAX);
 647                 RANGECHK(SCTP_BASE_SYSCTL(sctp_do_drain), SCTPCTL_DO_SCTP_DRAIN_MIN, SCTPCTL_DO_SCTP_DRAIN_MAX);
 648                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hb_maxburst), SCTPCTL_HB_MAX_BURST_MIN, SCTPCTL_HB_MAX_BURST_MAX);
 649                 RANGECHK(SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), SCTPCTL_ABORT_AT_LIMIT_MIN, SCTPCTL_ABORT_AT_LIMIT_MAX);
 650                 RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_data_order), SCTPCTL_STRICT_DATA_ORDER_MIN, SCTPCTL_STRICT_DATA_ORDER_MAX);
 651                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_residual), SCTPCTL_MIN_RESIDUAL_MIN, SCTPCTL_MIN_RESIDUAL_MAX);
 652                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_retran_chunk), SCTPCTL_MAX_RETRAN_CHUNK_MIN, SCTPCTL_MAX_RETRAN_CHUNK_MAX);
 653                 RANGECHK(SCTP_BASE_SYSCTL(sctp_logging_level), SCTPCTL_LOGGING_LEVEL_MIN, SCTPCTL_LOGGING_LEVEL_MAX);
 654                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_cc_module), SCTPCTL_DEFAULT_CC_MODULE_MIN, SCTPCTL_DEFAULT_CC_MODULE_MAX);
 655                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_ss_module), SCTPCTL_DEFAULT_SS_MODULE_MIN, SCTPCTL_DEFAULT_SS_MODULE_MAX);
 656                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_frag_interleave), SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX);
 657                 RANGECHK(SCTP_BASE_SYSCTL(sctp_vtag_time_wait), SCTPCTL_TIME_WAIT_MIN, SCTPCTL_TIME_WAIT_MAX);
 658                 RANGECHK(SCTP_BASE_SYSCTL(sctp_buffer_splitting), SCTPCTL_BUFFER_SPLITTING_MIN, SCTPCTL_BUFFER_SPLITTING_MAX);
 659                 RANGECHK(SCTP_BASE_SYSCTL(sctp_initial_cwnd), SCTPCTL_INITIAL_CWND_MIN, SCTPCTL_INITIAL_CWND_MAX);
 660                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_bw), SCTPCTL_RTTVAR_BW_MIN, SCTPCTL_RTTVAR_BW_MAX);
 661                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_rtt), SCTPCTL_RTTVAR_RTT_MIN, SCTPCTL_RTTVAR_RTT_MAX);
 662                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_eqret), SCTPCTL_RTTVAR_EQRET_MIN, SCTPCTL_RTTVAR_EQRET_MAX);
 663                 RANGECHK(SCTP_BASE_SYSCTL(sctp_steady_step), SCTPCTL_RTTVAR_STEADYS_MIN, SCTPCTL_RTTVAR_STEADYS_MAX);
 664                 RANGECHK(SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), SCTPCTL_RTTVAR_DCCCECN_MIN, SCTPCTL_RTTVAR_DCCCECN_MAX);
 665                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_base), SCTPCTL_MOBILITY_BASE_MIN, SCTPCTL_MOBILITY_BASE_MAX);
 666                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), SCTPCTL_MOBILITY_FASTHANDOFF_MIN, SCTPCTL_MOBILITY_FASTHANDOFF_MAX);
 667                 RANGECHK(SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN, SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX);
 668                 RANGECHK(SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), SCTPCTL_NAT_FRIENDLY_INITS_MIN, SCTPCTL_NAT_FRIENDLY_INITS_MAX);
 669                 RANGECHK(SCTP_BASE_SYSCTL(sctp_blackhole), SCTPCTL_BLACKHOLE_MIN, SCTPCTL_BLACKHOLE_MAX);
 670
 671 #ifdef SCTP_DEBUG
 672                 RANGECHK(SCTP_BASE_SYSCTL(sctp_debug_on), SCTPCTL_DEBUG_MIN, SCTPCTL_DEBUG_MAX);
 673 #endif
 674 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 675                 RANGECHK(SCTP_BASE_SYSCTL(sctp_output_unlocked), SCTPCTL_OUTPUT_UNLOCKED_MIN, SCTPCTL_OUTPUT_UNLOCKED_MAX);
 676 #endif
 677         }
 678         return (error);
 679 }
 680
 681 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
 682 static int
 683 sysctl_stat_get(SYSCTL_HANDLER_ARGS)
 684 {
 685         int cpu, error;
 686         struct sctpstat sb, *sarry, *cpin = NULL;
 687
 688         if ((req->newptr) && (req->newlen == sizeof(struct sctpstat))) {
 689                 /*
 690                  * User wants us to clear or at least reset the counters to
 691                  * the specified values.
 692                  */
 693                 cpin = (struct sctpstat *)req->newptr;
 694         } else if (req->newptr) {
 695                 /* Must be a stat structure */
 696                 return (EINVAL);
 697         }
 698         memset(&sb, 0, sizeof(sb));
 699         for (cpu = 0; cpu < mp_maxid; cpu++) {
 700                 sarry = &SCTP_BASE_STATS[cpu];
 701                 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
 702                         sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
 703                         sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
 704                 }
 705                 sb.sctps_currestab += sarry->sctps_currestab;
 706                 sb.sctps_activeestab += sarry->sctps_activeestab;
 707                 sb.sctps_restartestab += sarry->sctps_restartestab;
 708                 sb.sctps_collisionestab += sarry->sctps_collisionestab;
 709                 sb.sctps_passiveestab += sarry->sctps_passiveestab;
 710                 sb.sctps_aborted += sarry->sctps_aborted;
 711                 sb.sctps_shutdown += sarry->sctps_shutdown;
 712                 sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
 713                 sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
 714                 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
 715                 sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
 716                 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
 717                 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
 718                 sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
 719                 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
 720                 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
 721                 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
 722                 sb.sctps_outpackets += sarry->sctps_outpackets;
 723                 sb.sctps_inpackets += sarry->sctps_inpackets;
 724                 sb.sctps_recvpackets += sarry->sctps_recvpackets;
 725                 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
 726                 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
 727                 sb.sctps_recvsacks += sarry->sctps_recvsacks;
 728                 sb.sctps_recvdata += sarry->sctps_recvdata;
 729                 sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
 730                 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
 731                 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
 732                 sb.sctps_recvecne += sarry->sctps_recvecne;
 733                 sb.sctps_recvauth += sarry->sctps_recvauth;
 734                 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
 735                 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
 736                 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
 737                 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
 738                 sb.sctps_recvexpress += sarry->sctps_recvexpress;
 739                 sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
 740                 sb.sctps_recvnocrc += sarry->sctps_recvnocrc;
 741                 sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
 742                 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
 743                 sb.sctps_sendpackets += sarry->sctps_sendpackets;
 744                 sb.sctps_sendsacks += sarry->sctps_sendsacks;
 745                 sb.sctps_senddata += sarry->sctps_senddata;
 746                 sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
 747                 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
 748                 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
 749                 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
 750                 sb.sctps_sendecne += sarry->sctps_sendecne;
 751                 sb.sctps_sendauth += sarry->sctps_sendauth;
 752                 sb.sctps_senderrors += sarry->sctps_senderrors;
 753                 sb.sctps_sendnocrc += sarry->sctps_sendnocrc;
 754                 sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
 755                 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
 756                 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
 757                 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
 758                 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
 759                 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
 760                 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
 761                 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
 762                 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
 763                 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
 764                 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
 765                 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
 766                 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
 767                 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
 768                 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
 769                 sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
 770                 sb.sctps_timoiterator += sarry->sctps_timoiterator;
 771                 sb.sctps_timodata += sarry->sctps_timodata;
 772                 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
 773                 sb.sctps_timoinit += sarry->sctps_timoinit;
 774                 sb.sctps_timosack += sarry->sctps_timosack;
 775                 sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
 776                 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
 777                 sb.sctps_timocookie += sarry->sctps_timocookie;
 778                 sb.sctps_timosecret += sarry->sctps_timosecret;
 779                 sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
 780                 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
 781                 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
 782                 sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
 783                 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
 784                 sb.sctps_timoasconf += sarry->sctps_timoasconf;
 785                 sb.sctps_timodelprim += sarry->sctps_timodelprim;
 786                 sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
 787                 sb.sctps_timoassockill += sarry->sctps_timoassockill;
 788                 sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
 789                 sb.sctps_hdrops += sarry->sctps_hdrops;
 790                 sb.sctps_badsum += sarry->sctps_badsum;
 791                 sb.sctps_noport += sarry->sctps_noport;
 792                 sb.sctps_badvtag += sarry->sctps_badvtag;
 793                 sb.sctps_badsid += sarry->sctps_badsid;
 794                 sb.sctps_nomem += sarry->sctps_nomem;
 795                 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
 796                 sb.sctps_markedretrans += sarry->sctps_markedretrans;
 797                 sb.sctps_naglesent += sarry->sctps_naglesent;
 798                 sb.sctps_naglequeued += sarry->sctps_naglequeued;
 799                 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
 800                 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
 801                 sb.sctps_windowprobed += sarry->sctps_windowprobed;
 802                 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
 803                 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
 804                 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
 805                 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
 806                 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
 807                 sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
 808                 sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
 809                 sb.sctps_primary_randry += sarry->sctps_primary_randry;
 810                 sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
 811                 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
 812                 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
 813                 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
 814                 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
 815                 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
 816                 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
 817                 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
 818                 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
 819                 sb.sctps_read_peeks += sarry->sctps_read_peeks;
 820                 sb.sctps_cached_chk += sarry->sctps_cached_chk;
 821                 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
 822                 sb.sctps_left_abandon += sarry->sctps_left_abandon;
 823                 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
 824                 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
 825                 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
 826                 if (cpin) {
 827                         memcpy(sarry, cpin, sizeof(struct sctpstat));
 828                 }
 829         }
 830         error = SYSCTL_OUT(req, &sb, sizeof(sb));
 831         return (error);
 832 }
 833
 834 #endif
 835
 836 #if defined(SCTP_LOCAL_TRACE_BUF)
 837 static int
 838 sysctl_sctp_cleartrace(SYSCTL_HANDLER_ARGS)
 839 {
 840         int error = 0;
 841
 842         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
 843         return (error);
 844 }
 845
 846 #endif
 847
 848
 849 /*
 850  * sysctl definitions
 851  */
 852
 853 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sendspace, CTLTYPE_UINT | CTLFLAG_RW,
 854     &SCTP_BASE_SYSCTL(sctp_sendspace), 0, sysctl_sctp_check, "IU",
 855     SCTPCTL_MAXDGRAM_DESC);
 856
 857 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, recvspace, CTLTYPE_UINT | CTLFLAG_RW,
 858     &SCTP_BASE_SYSCTL(sctp_recvspace), 0, sysctl_sctp_check, "IU",
 859     SCTPCTL_RECVSPACE_DESC);
 860
 861 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, auto_asconf, CTLTYPE_UINT | CTLFLAG_RW,
 862     &SCTP_BASE_SYSCTL(sctp_auto_asconf), 0, sysctl_sctp_check, "IU",
 863     SCTPCTL_AUTOASCONF_DESC);
 864
 865 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, ecn_enable, CTLTYPE_UINT | CTLFLAG_RW,
 866     &SCTP_BASE_SYSCTL(sctp_ecn_enable), 0, sysctl_sctp_check, "IU",
 867     SCTPCTL_ECN_ENABLE_DESC);
 868
 869 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, strict_sacks, CTLTYPE_UINT | CTLFLAG_RW,
 870     &SCTP_BASE_SYSCTL(sctp_strict_sacks), 0, sysctl_sctp_check, "IU",
 871     SCTPCTL_STRICT_SACKS_DESC);
 872
 873 #if !defined(SCTP_WITH_NO_CSUM)
 874 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, loopback_nocsum, CTLTYPE_UINT | CTLFLAG_RW,
 875     &SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), 0, sysctl_sctp_check, "IU",
 876     SCTPCTL_LOOPBACK_NOCSUM_DESC);
 877 #endif
 878
 879 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, peer_chkoh, CTLTYPE_UINT | CTLFLAG_RW,
 880     &SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), 0, sysctl_sctp_check, "IU",
 881     SCTPCTL_PEER_CHKOH_DESC);
 882
 883 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, maxburst, CTLTYPE_UINT | CTLFLAG_RW,
 884     &SCTP_BASE_SYSCTL(sctp_max_burst_default), 0, sysctl_sctp_check, "IU",
 885     SCTPCTL_MAXBURST_DESC);
 886
 887 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, fr_maxburst, CTLTYPE_UINT | CTLFLAG_RW,
 888     &SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), 0, sysctl_sctp_check, "IU",
 889     SCTPCTL_FRMAXBURST_DESC);
 890
 891 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, maxchunks, CTLTYPE_UINT | CTLFLAG_RW,
 892     &SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), 0, sysctl_sctp_check, "IU",
 893     SCTPCTL_MAXCHUNKS_DESC);
 894
 895 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, tcbhashsize, CTLTYPE_UINT | CTLFLAG_RW,
 896     &SCTP_BASE_SYSCTL(sctp_hashtblsize), 0, sysctl_sctp_check, "IU",
 897     SCTPCTL_TCBHASHSIZE_DESC);
 898
 899 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, pcbhashsize, CTLTYPE_UINT | CTLFLAG_RW,
 900     &SCTP_BASE_SYSCTL(sctp_pcbtblsize), 0, sysctl_sctp_check, "IU",
 901     SCTPCTL_PCBHASHSIZE_DESC);
 902
 903 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, min_split_point, CTLTYPE_UINT | CTLFLAG_RW,
 904     &SCTP_BASE_SYSCTL(sctp_min_split_point), 0, sysctl_sctp_check, "IU",
 905     SCTPCTL_MIN_SPLIT_POINT_DESC);
 906
 907 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, chunkscale, CTLTYPE_UINT | CTLFLAG_RW,
 908     &SCTP_BASE_SYSCTL(sctp_chunkscale), 0, sysctl_sctp_check, "IU",
 909     SCTPCTL_CHUNKSCALE_DESC);
 910
 911 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, delayed_sack_time, CTLTYPE_UINT | CTLFLAG_RW,
 912     &SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), 0, sysctl_sctp_check, "IU",
 913     SCTPCTL_DELAYED_SACK_TIME_DESC);
 914
 915 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sack_freq, CTLTYPE_UINT | CTLFLAG_RW,
 916     &SCTP_BASE_SYSCTL(sctp_sack_freq_default), 0, sysctl_sctp_check, "IU",
 917     SCTPCTL_SACK_FREQ_DESC);
 918
 919 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sys_resource, CTLTYPE_UINT | CTLFLAG_RW,
 920     &SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), 0, sysctl_sctp_check, "IU",
 921     SCTPCTL_SYS_RESOURCE_DESC);
 922
 923 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, asoc_resource, CTLTYPE_UINT | CTLFLAG_RW,
 924     &SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), 0, sysctl_sctp_check, "IU",
 925     SCTPCTL_ASOC_RESOURCE_DESC);
 926
 927 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, heartbeat_interval, CTLTYPE_UINT | CTLFLAG_RW,
 928     &SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), 0, sysctl_sctp_check, "IU",
 929     SCTPCTL_HEARTBEAT_INTERVAL_DESC);
 930
 931 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, pmtu_raise_time, CTLTYPE_UINT | CTLFLAG_RW,
 932     &SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), 0, sysctl_sctp_check, "IU",
 933     SCTPCTL_PMTU_RAISE_TIME_DESC);
 934
 935 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, shutdown_guard_time, CTLTYPE_UINT | CTLFLAG_RW,
 936     &SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), 0, sysctl_sctp_check, "IU",
 937     SCTPCTL_SHUTDOWN_GUARD_TIME_DESC);
 938
 939 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, secret_lifetime, CTLTYPE_UINT | CTLFLAG_RW,
 940     &SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), 0, sysctl_sctp_check, "IU",
 941     SCTPCTL_SECRET_LIFETIME_DESC);
 942
 943 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_max, CTLTYPE_UINT | CTLFLAG_RW,
 944     &SCTP_BASE_SYSCTL(sctp_rto_max_default), 0, sysctl_sctp_check, "IU",
 945     SCTPCTL_RTO_MAX_DESC);
 946
 947 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_min, CTLTYPE_UINT | CTLFLAG_RW,
 948     &SCTP_BASE_SYSCTL(sctp_rto_min_default), 0, sysctl_sctp_check, "IU",
 949     SCTPCTL_RTO_MIN_DESC);
 950
 951 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_initial, CTLTYPE_UINT | CTLFLAG_RW,
 952     &SCTP_BASE_SYSCTL(sctp_rto_initial_default), 0, sysctl_sctp_check, "IU",
 953     SCTPCTL_RTO_INITIAL_DESC);
 954
 955 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, init_rto_max, CTLTYPE_UINT | CTLFLAG_RW,
 956     &SCTP_BASE_SYSCTL(sctp_init_rto_max_default), 0, sysctl_sctp_check, "IU",
 957     SCTPCTL_INIT_RTO_MAX_DESC);
 958
 959 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, valid_cookie_life, CTLTYPE_UINT | CTLFLAG_RW,
 960     &SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), 0, sysctl_sctp_check, "IU",
 961     SCTPCTL_VALID_COOKIE_LIFE_DESC);
 962
 963 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, init_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
 964     &SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), 0, sysctl_sctp_check, "IU",
 965     SCTPCTL_INIT_RTX_MAX_DESC);
 966
 967 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, assoc_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
 968     &SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), 0, sysctl_sctp_check, "IU",
 969     SCTPCTL_ASSOC_RTX_MAX_DESC);
 970
 971 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, path_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
 972     &SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), 0, sysctl_sctp_check, "IU",
 973     SCTPCTL_PATH_RTX_MAX_DESC);
 974
 975 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, path_pf_threshold, CTLTYPE_UINT | CTLFLAG_RW,
 976     &SCTP_BASE_SYSCTL(sctp_path_pf_threshold), 0, sysctl_sctp_check, "IU",
 977     SCTPCTL_PATH_PF_THRESHOLD_DESC);
 978
 979 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, add_more_on_output, CTLTYPE_UINT | CTLFLAG_RW,
 980     &SCTP_BASE_SYSCTL(sctp_add_more_threshold), 0, sysctl_sctp_check, "IU",
 981     SCTPCTL_ADD_MORE_ON_OUTPUT_DESC);
 982
 983 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, outgoing_streams, CTLTYPE_UINT | CTLFLAG_RW,
 984     &SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), 0, sysctl_sctp_check, "IU",
 985     SCTPCTL_OUTGOING_STREAMS_DESC);
 986
 987 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cmt_on_off, CTLTYPE_UINT | CTLFLAG_RW,
 988     &SCTP_BASE_SYSCTL(sctp_cmt_on_off), 0, sysctl_sctp_check, "IU",
 989     SCTPCTL_CMT_ON_OFF_DESC);
 990
 991 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nr_sack_on_off, CTLTYPE_UINT | CTLFLAG_RW,
 992     &SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), 0, sysctl_sctp_check, "IU",
 993     SCTPCTL_NR_SACK_ON_OFF_DESC);
 994
 995 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cmt_use_dac, CTLTYPE_UINT | CTLFLAG_RW,
 996     &SCTP_BASE_SYSCTL(sctp_cmt_use_dac), 0, sysctl_sctp_check, "IU",
 997     SCTPCTL_CMT_USE_DAC_DESC);
 998
 999 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cwnd_maxburst, CTLTYPE_UINT | CTLFLAG_RW,
1000     &SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), 0, sysctl_sctp_check, "IU",
1001     SCTPCTL_CWND_MAXBURST_DESC);
1002
1003 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, asconf_auth_nochk, CTLTYPE_UINT | CTLFLAG_RW,
1004     &SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), 0, sysctl_sctp_check, "IU",
1005     SCTPCTL_ASCONF_AUTH_NOCHK_DESC);
1006
1007 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, auth_disable, CTLTYPE_UINT | CTLFLAG_RW,
1008     &SCTP_BASE_SYSCTL(sctp_auth_disable), 0, sysctl_sctp_check, "IU",
1009     SCTPCTL_AUTH_DISABLE_DESC);
1010
1011 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nat_friendly, CTLTYPE_UINT | CTLFLAG_RW,
1012     &SCTP_BASE_SYSCTL(sctp_nat_friendly), 0, sysctl_sctp_check, "IU",
1013     SCTPCTL_NAT_FRIENDLY_DESC);
1014
1015 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, abc_l_var, CTLTYPE_UINT | CTLFLAG_RW,
1016     &SCTP_BASE_SYSCTL(sctp_L2_abc_variable), 0, sysctl_sctp_check, "IU",
1017     SCTPCTL_ABC_L_VAR_DESC);
1018
1019 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, max_chained_mbufs, CTLTYPE_UINT | CTLFLAG_RW,
1020     &SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), 0, sysctl_sctp_check, "IU",
1021     SCTPCTL_MAX_CHAINED_MBUFS_DESC);
1022
1023 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, do_sctp_drain, CTLTYPE_UINT | CTLFLAG_RW,
1024     &SCTP_BASE_SYSCTL(sctp_do_drain), 0, sysctl_sctp_check, "IU",
1025     SCTPCTL_DO_SCTP_DRAIN_DESC);
1026
1027 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, hb_max_burst, CTLTYPE_UINT | CTLFLAG_RW,
1028     &SCTP_BASE_SYSCTL(sctp_hb_maxburst), 0, sysctl_sctp_check, "IU",
1029     SCTPCTL_HB_MAX_BURST_DESC);
1030
1031 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, abort_at_limit, CTLTYPE_UINT | CTLFLAG_RW,
1032     &SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), 0, sysctl_sctp_check, "IU",
1033     SCTPCTL_ABORT_AT_LIMIT_DESC);
1034
1035 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, strict_data_order, CTLTYPE_UINT | CTLFLAG_RW,
1036     &SCTP_BASE_SYSCTL(sctp_strict_data_order), 0, sysctl_sctp_check, "IU",
1037     SCTPCTL_STRICT_DATA_ORDER_DESC);
1038
1039 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, min_residual, CTLTYPE_UINT | CTLFLAG_RW,
1040     &SCTP_BASE_SYSCTL(sctp_min_residual), 0, sysctl_sctp_check, "IU",
1041     SCTPCTL_MIN_RESIDUAL_DESC);
1042
1043 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, max_retran_chunk, CTLTYPE_UINT | CTLFLAG_RW,
1044     &SCTP_BASE_SYSCTL(sctp_max_retran_chunk), 0, sysctl_sctp_check, "IU",
1045     SCTPCTL_MAX_RETRAN_CHUNK_DESC);
1046
1047 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, log_level, CTLTYPE_UINT | CTLFLAG_RW,
1048     &SCTP_BASE_SYSCTL(sctp_logging_level), 0, sysctl_sctp_check, "IU",
1049     SCTPCTL_LOGGING_LEVEL_DESC);
1050
1051 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_cc_module, CTLTYPE_UINT | CTLFLAG_RW,
1052     &SCTP_BASE_SYSCTL(sctp_default_cc_module), 0, sysctl_sctp_check, "IU",
1053     SCTPCTL_DEFAULT_CC_MODULE_DESC);
1054
1055 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_ss_module, CTLTYPE_UINT | CTLFLAG_RW,
1056     &SCTP_BASE_SYSCTL(sctp_default_ss_module), 0, sysctl_sctp_check, "IU",
1057     SCTPCTL_DEFAULT_SS_MODULE_DESC);
1058
1059 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_frag_interleave, CTLTYPE_UINT | CTLFLAG_RW,
1060     &SCTP_BASE_SYSCTL(sctp_default_frag_interleave), 0, sysctl_sctp_check, "IU",
1061     SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC);
1062
1063 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, mobility_base, CTLTYPE_UINT | CTLFLAG_RW,
1064     &SCTP_BASE_SYSCTL(sctp_mobility_base), 0, sysctl_sctp_check, "IU",
1065     SCTPCTL_MOBILITY_BASE_DESC);
1066
1067 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, mobility_fasthandoff, CTLTYPE_UINT | CTLFLAG_RW,
1068     &SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), 0, sysctl_sctp_check, "IU",
1069     SCTPCTL_MOBILITY_FASTHANDOFF_DESC);
1070
1071 #if defined(SCTP_LOCAL_TRACE_BUF)
1072 SYSCTL_VNET_STRUCT(_net_inet_sctp, OID_AUTO, log, CTLFLAG_RD,
1073     &SCTP_BASE_SYSCTL(sctp_log), sctp_log,
1074     "SCTP logging (struct sctp_log)");
1075
1076 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLTYPE_UINT | CTLFLAG_RW,
1077     &SCTP_BASE_SYSCTL(sctp_log), 0, sysctl_sctp_cleartrace, "IU",
1078     "Clear SCTP Logging buffer");
1079 #endif
1080
1081 /* XXX: Remove the #if after tunneling over IPv6 works also on FreeBSD. */
1082 #if !defined(__FreeBSD__) || defined(INET)
1083 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLTYPE_UINT | CTLFLAG_RW,
1084     &SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), 0, sysctl_sctp_udp_tunneling_check, "IU",
1085     SCTPCTL_UDP_TUNNELING_PORT_DESC);
1086 #endif
1087
1088 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, enable_sack_immediately, CTLTYPE_UINT | CTLFLAG_RW,
1089     &SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), 0, sysctl_sctp_check, "IU",
1090     SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC);
1091
1092 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nat_friendly_init, CTLTYPE_UINT | CTLFLAG_RW,
1093     &SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), 0, sysctl_sctp_check, "IU",
1094     SCTPCTL_NAT_FRIENDLY_INITS_DESC);
1095
1096 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, vtag_time_wait, CTLTYPE_UINT | CTLFLAG_RW,
1097     &SCTP_BASE_SYSCTL(sctp_vtag_time_wait), 0, sysctl_sctp_check, "IU",
1098     SCTPCTL_TIME_WAIT_DESC);
1099
1100 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, buffer_splitting, CTLTYPE_UINT | CTLFLAG_RW,
1101     &SCTP_BASE_SYSCTL(sctp_buffer_splitting), 0, sysctl_sctp_check, "IU",
1102     SCTPCTL_BUFFER_SPLITTING_DESC);
1103
1104 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, initial_cwnd, CTLTYPE_UINT | CTLFLAG_RW,
1105     &SCTP_BASE_SYSCTL(sctp_initial_cwnd), 0, sysctl_sctp_check, "IU",
1106     SCTPCTL_INITIAL_CWND_DESC);
1107
1108 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_bw, CTLTYPE_UINT | CTLFLAG_RW,
1109     &SCTP_BASE_SYSCTL(sctp_rttvar_bw), 0, sysctl_sctp_check, "IU",
1110     SCTPCTL_RTTVAR_BW_DESC);
1111
1112 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_rtt, CTLTYPE_UINT | CTLFLAG_RW,
1113     &SCTP_BASE_SYSCTL(sctp_rttvar_rtt), 0, sysctl_sctp_check, "IU",
1114     SCTPCTL_RTTVAR_RTT_DESC);
1115
1116 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_eqret, CTLTYPE_UINT | CTLFLAG_RW,
1117     &SCTP_BASE_SYSCTL(sctp_rttvar_eqret), 0, sysctl_sctp_check, "IU",
1118     SCTPCTL_RTTVAR_EQRET_DESC);
1119
1120 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_steady_step, CTLTYPE_UINT | CTLFLAG_RW,
1121     &SCTP_BASE_SYSCTL(sctp_steady_step), 0, sysctl_sctp_check, "IU",
1122     SCTPCTL_RTTVAR_STEADYS_DESC);
1123
1124 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, use_dcccecn, CTLTYPE_UINT | CTLFLAG_RW,
1125     &SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), 0, sysctl_sctp_check, "IU",
1126     SCTPCTL_RTTVAR_DCCCECN_DESC);
1127
1128 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, blackhole, CTLTYPE_UINT | CTLFLAG_RW,
1129     &SCTP_BASE_SYSCTL(sctp_blackhole), 0, sysctl_sctp_check, "IU",
1130     SCTPCTL_BLACKHOLE_DESC);
1131
1132 #ifdef SCTP_DEBUG
1133 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, debug, CTLTYPE_UINT | CTLFLAG_RW,
1134     &SCTP_BASE_SYSCTL(sctp_debug_on), 0, sysctl_sctp_check, "IU",
1135     SCTPCTL_DEBUG_DESC);
1136 #endif
1137
1138
1139 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
1140 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, output_unlocked, CTLTYPE_UINT | CTLFLAG_RW,
1141     &SCTP_BASE_SYSCTL(sctp_output_unlocked), 0, sysctl_sctp_check, "IU",
1142     SCTPCTL_OUTPUT_UNLOCKED_DESC);
1143 #endif
1144
1145 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1146 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, stats,
1147     CTLTYPE_STRUCT | CTLFLAG_RW,
1148     0, 0, sysctl_stat_get, "S,sctpstat",
1149     "SCTP statistics (struct sctp_stat)");
1150 #else
1151 SYSCTL_VNET_STRUCT(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_RW,
1152     &SCTP_BASE_STATS_SYSCTL, sctpstat,
1153     "SCTP statistics (struct sctp_stat)");
1154 #endif
1155
1156 SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLTYPE_OPAQUE | CTLFLAG_RD,
1157     0, 0, sctp_assoclist,
1158     "S,xassoc", "List of active SCTP associations");