ext/sctp/usrsctp/usrsctplib/netinet/sctp_sysctl.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #if defined(__FreeBSD__) && !defined(__Userspace__)
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD: head/sys/netinet/sctp_sysctl.c 361934 2020-06-08 20:23:20Z tuexen $");
  38 #endif
  39
  40 #include <netinet/sctp_os.h>
  41 #include <netinet/sctp.h>
  42 #include <netinet/sctp_constants.h>
  43 #include <netinet/sctp_sysctl.h>
  44 #include <netinet/sctp_pcb.h>
  45 #include <netinet/sctputil.h>
  46 #include <netinet/sctp_output.h>
  47 #if defined(__FreeBSD__) && !defined(__Userspace__)
  48 #include <sys/smp.h>
  49 #include <sys/sysctl.h>
  50 #endif
  51 #if defined(__APPLE__) && !defined(__Userspace__)
  52 #include <netinet/sctp_bsd_addr.h>
  53 #endif
  54
  55 #if defined(__FreeBSD__) && !defined(__Userspace__)
  56 FEATURE(sctp, "Stream Control Transmission Protocol");
  57 #endif
  58
  59 /*
  60  * sysctl tunable variables
  61  */
  62
  63 void
  64 sctp_init_sysctls()
  65 {
  66         SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
  67         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
  68         SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
  69         SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
  70         SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
  71         SCTP_BASE_SYSCTL(sctp_pr_enable) = SCTPCTL_PR_ENABLE_DEFAULT;
  72         SCTP_BASE_SYSCTL(sctp_auth_enable) = SCTPCTL_AUTH_ENABLE_DEFAULT;
  73         SCTP_BASE_SYSCTL(sctp_asconf_enable) = SCTPCTL_ASCONF_ENABLE_DEFAULT;
  74         SCTP_BASE_SYSCTL(sctp_reconfig_enable) = SCTPCTL_RECONFIG_ENABLE_DEFAULT;
  75         SCTP_BASE_SYSCTL(sctp_nrsack_enable) = SCTPCTL_NRSACK_ENABLE_DEFAULT;
  76         SCTP_BASE_SYSCTL(sctp_pktdrop_enable) = SCTPCTL_PKTDROP_ENABLE_DEFAULT;
  77 #if !(defined(__FreeBSD__) && !defined(__Userspace__))
  78         SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) = SCTPCTL_LOOPBACK_NOCSUM_DEFAULT;
  79 #endif
  80         SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
  81         SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
  82         SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
  83         SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
  84 #if defined(__Userspace__)
  85         if (SCTP_BASE_SYSCTL(sctp_hashtblsize) == 0) {
  86                 SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
  87         }
  88 #else
  89         SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
  90 #endif
  91 #if defined(__Userspace__)
  92         if (SCTP_BASE_SYSCTL(sctp_pcbtblsize) == 0) {
  93                 SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
  94         }
  95 #else
  96         SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
  97 #endif
  98         SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
  99 #if defined(__Userspace__)
 100         if (SCTP_BASE_SYSCTL(sctp_chunkscale) == 0) {
 101                 SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
 102         }
 103 #else
 104         SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
 105 #endif
 106         SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
 107         SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
 108         SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
 109         SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
 110         SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
 111         SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
 112         SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
 113         SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
 114         SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
 115         SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
 116         SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
 117         SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
 118         SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
 119         SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
 120         SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
 121         SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
 122         SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
 123         SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
 124         SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT;
 125         SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
 126         SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
 127         SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
 128         SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
 129         SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
 130         SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
 131         SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
 132         SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
 133         SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
 134         SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
 135         SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
 136         SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
 137         SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
 138         SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
 139         SCTP_BASE_SYSCTL(sctp_default_ss_module) = SCTPCTL_DEFAULT_SS_MODULE_DEFAULT;
 140         SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
 141         SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT;
 142         SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
 143         SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT;
 144         SCTP_BASE_SYSCTL(sctp_buffer_splitting) = SCTPCTL_BUFFER_SPLITTING_DEFAULT;
 145         SCTP_BASE_SYSCTL(sctp_initial_cwnd) = SCTPCTL_INITIAL_CWND_DEFAULT;
 146         SCTP_BASE_SYSCTL(sctp_rttvar_bw) = SCTPCTL_RTTVAR_BW_DEFAULT;
 147         SCTP_BASE_SYSCTL(sctp_rttvar_rtt) = SCTPCTL_RTTVAR_RTT_DEFAULT;
 148         SCTP_BASE_SYSCTL(sctp_rttvar_eqret) = SCTPCTL_RTTVAR_EQRET_DEFAULT;
 149         SCTP_BASE_SYSCTL(sctp_steady_step) = SCTPCTL_RTTVAR_STEADYS_DEFAULT;
 150         SCTP_BASE_SYSCTL(sctp_use_dccc_ecn) = SCTPCTL_RTTVAR_DCCCECN_DEFAULT;
 151         SCTP_BASE_SYSCTL(sctp_blackhole) = SCTPCTL_BLACKHOLE_DEFAULT;
 152         SCTP_BASE_SYSCTL(sctp_sendall_limit) = SCTPCTL_SENDALL_LIMIT_DEFAULT;
 153         SCTP_BASE_SYSCTL(sctp_diag_info_code) = SCTPCTL_DIAG_INFO_CODE_DEFAULT;
 154 #if defined(SCTP_LOCAL_TRACE_BUF)
 155 #if defined(_WIN32) && !defined(__Userspace__)
 156         /* On Windows, the resource for global variables is limited. */
 157         MALLOC(SCTP_BASE_SYSCTL(sctp_log), struct sctp_log *, sizeof(struct sctp_log), M_SYSCTL, M_ZERO);
 158 #else
 159         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
 160 #endif
 161 #endif
 162         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
 163         SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
 164         SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
 165 #if defined(SCTP_DEBUG)
 166         SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
 167 #endif
 168 #if defined(__APPLE__) && !defined(__Userspace__)
 169         SCTP_BASE_SYSCTL(sctp_ignore_vmware_interfaces) = SCTPCTL_IGNORE_VMWARE_INTERFACES_DEFAULT;
 170         SCTP_BASE_SYSCTL(sctp_main_timer) = SCTPCTL_MAIN_TIMER_DEFAULT;
 171         SCTP_BASE_SYSCTL(sctp_addr_watchdog_limit) = SCTPCTL_ADDR_WATCHDOG_LIMIT_DEFAULT;
 172         SCTP_BASE_SYSCTL(sctp_vtag_watchdog_limit) = SCTPCTL_VTAG_WATCHDOG_LIMIT_DEFAULT;
 173 #endif
 174 #if defined(__APPLE__) && !defined(__Userspace__)
 175         SCTP_BASE_SYSCTL(sctp_output_unlocked) = SCTPCTL_OUTPUT_UNLOCKED_DEFAULT;
 176 #endif
 177 }
 178
 179 #if defined(_WIN32) && !defined(__Userspace__)
 180 void
 181 sctp_finish_sysctls()
 182 {
 183 #if defined(SCTP_LOCAL_TRACE_BUF)
 184         if (SCTP_BASE_SYSCTL(sctp_log) != NULL) {
 185                 FREE(SCTP_BASE_SYSCTL(sctp_log), M_SYSCTL);
 186                 SCTP_BASE_SYSCTL(sctp_log) = NULL;
 187         }
 188 #endif
 189 }
 190 #endif
 191
 192 #if !defined(__Userspace__)
 193 /* It returns an upper limit. No filtering is done here */
 194 static unsigned int
 195 sctp_sysctl_number_of_addresses(struct sctp_inpcb *inp)
 196 {
 197         unsigned int cnt;
 198         struct sctp_vrf *vrf;
 199         struct sctp_ifn *sctp_ifn;
 200         struct sctp_ifa *sctp_ifa;
 201         struct sctp_laddr *laddr;
 202
 203         cnt = 0;
 204         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
 205         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
 206                 return (0);
 207         }
 208         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 209                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 210                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 211                                 switch (sctp_ifa->address.sa.sa_family) {
 212 #ifdef INET
 213                                 case AF_INET:
 214 #endif
 215 #ifdef INET6
 216                                 case AF_INET6:
 217 #endif
 218                                         cnt++;
 219                                         break;
 220                                 default:
 221                                         break;
 222                                 }
 223                         }
 224                 }
 225         } else {
 226                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 227                         switch (laddr->ifa->address.sa.sa_family) {
 228 #ifdef INET
 229                         case AF_INET:
 230 #endif
 231 #ifdef INET6
 232                         case AF_INET6:
 233 #endif
 234                                 cnt++;
 235                                 break;
 236                         default:
 237                                 break;
 238                         }
 239                 }
 240         }
 241         return (cnt);
 242 }
 243
 244 static int
 245 sctp_sysctl_copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
 246 {
 247         struct sctp_ifn *sctp_ifn;
 248         struct sctp_ifa *sctp_ifa;
 249         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
 250         int ipv4_addr_legal, ipv6_addr_legal;
 251 #if defined(__Userspace__)
 252         int conn_addr_legal;
 253 #endif
 254         struct sctp_vrf *vrf;
 255         struct xsctp_laddr xladdr;
 256         struct sctp_laddr *laddr;
 257         int error;
 258
 259         /* Turn on all the appropriate scope */
 260         if (stcb) {
 261                 /* use association specific values */
 262                 loopback_scope = stcb->asoc.scope.loopback_scope;
 263                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 264                 local_scope = stcb->asoc.scope.local_scope;
 265                 site_scope = stcb->asoc.scope.site_scope;
 266                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 267                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 268 #if defined(__Userspace__)
 269                 conn_addr_legal = stcb->asoc.scope.conn_addr_legal;
 270 #endif
 271         } else {
 272                 /* Use generic values for endpoints. */
 273                 loopback_scope = 1;
 274                 ipv4_local_scope = 1;
 275                 local_scope = 1;
 276                 site_scope = 1;
 277                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 278                         ipv6_addr_legal = 1;
 279                         if (SCTP_IPV6_V6ONLY(inp)) {
 280                                 ipv4_addr_legal = 0;
 281                         } else {
 282                                 ipv4_addr_legal = 1;
 283                         }
 284 #if defined(__Userspace__)
 285                         conn_addr_legal = 0;
 286 #endif
 287                 } else {
 288                         ipv6_addr_legal = 0;
 289 #if defined(__Userspace__)
 290                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
 291                                 conn_addr_legal = 1;
 292                                 ipv4_addr_legal = 0;
 293                         } else {
 294                                 conn_addr_legal = 0;
 295                                 ipv4_addr_legal = 1;
 296                         }
 297 #else
 298                         ipv4_addr_legal = 1;
 299 #endif
 300                 }
 301         }
 302
 303         /* neither Mac OS X nor FreeBSD support mulitple routing functions */
 304         if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
 305                 SCTP_INP_RUNLOCK(inp);
 306                 SCTP_INP_INFO_RUNLOCK();
 307                 return (-1);
 308         }
 309         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 310                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 311                         if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn))
 312                                 /* Skip loopback if loopback_scope not set */
 313                                 continue;
 314                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 315                                 if (stcb) {
 316                                         /*
 317                                          * ignore if blacklisted at
 318                                          * association level
 319                                          */
 320                                         if (sctp_is_addr_restricted(stcb, sctp_ifa))
 321                                                 continue;
 322                                 }
 323                                 switch (sctp_ifa->address.sa.sa_family) {
 324 #ifdef INET
 325                                 case AF_INET:
 326                                         if (ipv4_addr_legal) {
 327                                                 struct sockaddr_in *sin;
 328
 329                                                 sin = &sctp_ifa->address.sin;
 330                                                 if (sin->sin_addr.s_addr == 0)
 331                                                         continue;
 332 #if defined(__FreeBSD__) && !defined(__Userspace__)
 333                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
 334                                                                      &sin->sin_addr) != 0) {
 335                                                         continue;
 336                                                 }
 337 #endif
 338                                                 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr)))
 339                                                         continue;
 340                                         } else {
 341                                                 continue;
 342                                         }
 343                                         break;
 344 #endif
 345 #ifdef INET6
 346                                 case AF_INET6:
 347                                         if (ipv6_addr_legal) {
 348                                                 struct sockaddr_in6 *sin6;
 349
 350                                                 sin6 = &sctp_ifa->address.sin6;
 351                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
 352                                                         continue;
 353 #if defined(__FreeBSD__) && !defined(__Userspace__)
 354                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
 355                                                                      &sin6->sin6_addr) != 0) {
 356                                                         continue;
 357                                                 }
 358 #endif
 359                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 360                                                         if (local_scope == 0)
 361                                                                 continue;
 362                                                 }
 363                                                 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
 364                                                         continue;
 365                                         } else {
 366                                                 continue;
 367                                         }
 368                                         break;
 369 #endif
 370 #if defined(__Userspace__)
 371                                 case AF_CONN:
 372                                         if (!conn_addr_legal) {
 373                                                 continue;
 374                                         }
 375                                         break;
 376 #endif
 377                                 default:
 378                                         continue;
 379                                 }
 380                                 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 381                                 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
 382                                 SCTP_INP_RUNLOCK(inp);
 383                                 SCTP_INP_INFO_RUNLOCK();
 384                                 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 385                                 if (error) {
 386                                         return (error);
 387                                 } else {
 388                                         SCTP_INP_INFO_RLOCK();
 389                                         SCTP_INP_RLOCK(inp);
 390                                 }
 391                         }
 392                 }
 393         } else {
 394                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 395                         /* ignore if blacklisted at association level */
 396                         if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
 397                                 continue;
 398                         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 399                         memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
 400                         xladdr.start_time.tv_sec = (uint32_t)laddr->start_time.tv_sec;
 401                         xladdr.start_time.tv_usec = (uint32_t)laddr->start_time.tv_usec;
 402                         SCTP_INP_RUNLOCK(inp);
 403                         SCTP_INP_INFO_RUNLOCK();
 404                         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 405                         if (error) {
 406                                 return (error);
 407                         } else {
 408                                 SCTP_INP_INFO_RLOCK();
 409                                 SCTP_INP_RLOCK(inp);
 410                         }
 411                 }
 412         }
 413         memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
 414         xladdr.last = 1;
 415         SCTP_INP_RUNLOCK(inp);
 416         SCTP_INP_INFO_RUNLOCK();
 417         error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
 418
 419         if (error) {
 420                 return (error);
 421         } else {
 422                 SCTP_INP_INFO_RLOCK();
 423                 SCTP_INP_RLOCK(inp);
 424                 return (0);
 425         }
 426 }
 427
 428 /*
 429  * sysctl functions
 430  */
 431 #if defined(__APPLE__) && !defined(__Userspace__)
 432 static int
 433 sctp_sysctl_handle_assoclist SYSCTL_HANDLER_ARGS
 434 {
 435 #pragma unused(oidp, arg1, arg2)
 436 #else
 437 static int
 438 sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)
 439 {
 440 #endif
 441         unsigned int number_of_endpoints;
 442         unsigned int number_of_local_addresses;
 443         unsigned int number_of_associations;
 444         unsigned int number_of_remote_addresses;
 445         unsigned int n;
 446         int error;
 447         struct sctp_inpcb *inp;
 448         struct sctp_tcb *stcb;
 449         struct sctp_nets *net;
 450         struct xsctp_inpcb xinpcb;
 451         struct xsctp_tcb xstcb;
 452         struct xsctp_raddr xraddr;
 453         struct socket *so;
 454
 455         number_of_endpoints = 0;
 456         number_of_local_addresses = 0;
 457         number_of_associations = 0;
 458         number_of_remote_addresses = 0;
 459
 460         SCTP_INP_INFO_RLOCK();
 461 #if defined(__APPLE__) && !defined(__Userspace__)
 462         if (req->oldptr == USER_ADDR_NULL) {
 463 #else
 464         if (req->oldptr == NULL) {
 465 #endif
 466                 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
 467                         SCTP_INP_RLOCK(inp);
 468                         number_of_endpoints++;
 469                         number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
 470                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 471                                 number_of_associations++;
 472                                 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
 473                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 474                                         number_of_remote_addresses++;
 475                                 }
 476                         }
 477                         SCTP_INP_RUNLOCK(inp);
 478                 }
 479                 SCTP_INP_INFO_RUNLOCK();
 480                 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
 481                     (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
 482                     (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
 483                     (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
 484
 485                 /* request some more memory than needed */
 486 #if !(defined(_WIN32) && !defined(__Userspace__))
 487                 req->oldidx = (n + n / 8);
 488 #else
 489                 req->dataidx = (n + n / 8);
 490 #endif
 491                 return (0);
 492         }
 493 #if defined(__APPLE__) && !defined(__Userspace__)
 494         if (req->newptr != USER_ADDR_NULL) {
 495 #else
 496         if (req->newptr != NULL) {
 497 #endif
 498                 SCTP_INP_INFO_RUNLOCK();
 499                 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
 500                 return (EPERM);
 501         }
 502         memset(&xinpcb, 0, sizeof(xinpcb));
 503         memset(&xstcb, 0, sizeof(xstcb));
 504         memset(&xraddr, 0, sizeof(xraddr));
 505         LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
 506                 SCTP_INP_RLOCK(inp);
 507                 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
 508                         /* if its allgone it is being freed - skip it  */
 509                         goto skip;
 510                 }
 511                 xinpcb.last = 0;
 512                 xinpcb.local_port = ntohs(inp->sctp_lport);
 513                 xinpcb.flags = inp->sctp_flags;
 514                 xinpcb.features = inp->sctp_features;
 515                 xinpcb.total_sends = inp->total_sends;
 516                 xinpcb.total_recvs = inp->total_recvs;
 517                 xinpcb.total_nospaces = inp->total_nospaces;
 518                 xinpcb.fragmentation_point = inp->sctp_frag_point;
 519 #if defined(__FreeBSD__) && !defined(__Userspace__)
 520                 xinpcb.socket = (uintptr_t)inp->sctp_socket;
 521 #else
 522                 xinpcb.socket = inp->sctp_socket;
 523 #endif
 524                 so = inp->sctp_socket;
 525                 if ((so == NULL) ||
 526                     (!SCTP_IS_LISTENING(inp)) ||
 527                     (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 528                         xinpcb.qlen = 0;
 529                         xinpcb.maxqlen = 0;
 530                 } else {
 531 #if defined(__FreeBSD__) && !defined(__Userspace__)
 532                         xinpcb.qlen = so->sol_qlen;
 533                         xinpcb.qlen_old = so->sol_qlen > USHRT_MAX ?
 534                             USHRT_MAX : (uint16_t) so->sol_qlen;
 535                         xinpcb.maxqlen = so->sol_qlimit;
 536                         xinpcb.maxqlen_old = so->sol_qlimit > USHRT_MAX ?
 537                             USHRT_MAX : (uint16_t) so->sol_qlimit;
 538 #else
 539                         xinpcb.qlen = so->so_qlen;
 540                         xinpcb.maxqlen = so->so_qlimit;
 541 #endif
 542                 }
 543                 SCTP_INP_INCR_REF(inp);
 544                 SCTP_INP_RUNLOCK(inp);
 545                 SCTP_INP_INFO_RUNLOCK();
 546                 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
 547                 if (error) {
 548                         SCTP_INP_DECR_REF(inp);
 549                         return (error);
 550                 }
 551                 SCTP_INP_INFO_RLOCK();
 552                 SCTP_INP_RLOCK(inp);
 553                 error = sctp_sysctl_copy_out_local_addresses(inp, NULL, req);
 554                 if (error) {
 555                         SCTP_INP_DECR_REF(inp);
 556                         return (error);
 557                 }
 558                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 559                         SCTP_TCB_LOCK(stcb);
 560                         atomic_add_int(&stcb->asoc.refcnt, 1);
 561                         SCTP_TCB_UNLOCK(stcb);
 562                         xstcb.last = 0;
 563                         xstcb.local_port = ntohs(inp->sctp_lport);
 564                         xstcb.remote_port = ntohs(stcb->rport);
 565                         if (stcb->asoc.primary_destination != NULL)
 566                                 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
 567                         xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
 568                         xstcb.state = (uint32_t)sctp_map_assoc_state(stcb->asoc.state);
 569                         xstcb.assoc_id = sctp_get_associd(stcb);
 570                         xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
 571                         xstcb.in_streams = stcb->asoc.streamincnt;
 572                         xstcb.out_streams = stcb->asoc.streamoutcnt;
 573                         xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
 574                         xstcb.primary_process = 0; /* not really supported yet */
 575                         xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
 576                         xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
 577                         xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
 578                         xstcb.start_time.tv_sec = (uint32_t)stcb->asoc.start_time.tv_sec;
 579                         xstcb.start_time.tv_usec = (uint32_t)stcb->asoc.start_time.tv_usec;
 580                         xstcb.discontinuity_time.tv_sec = (uint32_t)stcb->asoc.discontinuity_time.tv_sec;
 581                         xstcb.discontinuity_time.tv_usec = (uint32_t)stcb->asoc.discontinuity_time.tv_usec;
 582                         xstcb.total_sends = stcb->total_sends;
 583                         xstcb.total_recvs = stcb->total_recvs;
 584                         xstcb.local_tag = stcb->asoc.my_vtag;
 585                         xstcb.remote_tag = stcb->asoc.peer_vtag;
 586                         xstcb.initial_tsn = stcb->asoc.init_seq_number;
 587                         xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
 588                         xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
 589                         xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
 590                         xstcb.mtu = stcb->asoc.smallest_mtu;
 591                         xstcb.refcnt = stcb->asoc.refcnt;
 592                         SCTP_INP_RUNLOCK(inp);
 593                         SCTP_INP_INFO_RUNLOCK();
 594                         error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
 595                         if (error) {
 596                                 SCTP_INP_DECR_REF(inp);
 597                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 598                                 return (error);
 599                         }
 600                         SCTP_INP_INFO_RLOCK();
 601                         SCTP_INP_RLOCK(inp);
 602                         error = sctp_sysctl_copy_out_local_addresses(inp, stcb, req);
 603                         if (error) {
 604                                 SCTP_INP_DECR_REF(inp);
 605                                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 606                                 return (error);
 607                         }
 608                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 609                                 xraddr.last = 0;
 610                                 xraddr.address = net->ro._l_addr;
 611                                 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
 612                                 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
 613                                 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
 614                                 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
 615                                 xraddr.rto = net->RTO;
 616                                 xraddr.max_path_rtx = net->failure_threshold;
 617                                 xraddr.rtx = net->marked_retrans;
 618                                 xraddr.error_counter = net->error_count;
 619                                 xraddr.cwnd = net->cwnd;
 620                                 xraddr.flight_size = net->flight_size;
 621                                 xraddr.mtu = net->mtu;
 622                                 xraddr.rtt = net->rtt / 1000;
 623                                 xraddr.heartbeat_interval = net->heart_beat_delay;
 624                                 xraddr.ssthresh = net->ssthresh;
 625                                 xraddr.encaps_port = net->port;
 626                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 627                                         xraddr.state = SCTP_UNCONFIRMED;
 628                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 629                                         xraddr.state = SCTP_ACTIVE;
 630                                 } else {
 631                                         xraddr.state = SCTP_INACTIVE;
 632                                 }
 633                                 xraddr.start_time.tv_sec = (uint32_t)net->start_time.tv_sec;
 634                                 xraddr.start_time.tv_usec = (uint32_t)net->start_time.tv_usec;
 635                                 SCTP_INP_RUNLOCK(inp);
 636                                 SCTP_INP_INFO_RUNLOCK();
 637                                 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
 638                                 if (error) {
 639                                         SCTP_INP_DECR_REF(inp);
 640                                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
 641                                         return (error);
 642                                 }
 643                                 SCTP_INP_INFO_RLOCK();
 644                                 SCTP_INP_RLOCK(inp);
 645                         }
 646                         atomic_subtract_int(&stcb->asoc.refcnt, 1);
 647                         memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
 648                         xraddr.last = 1;
 649                         SCTP_INP_RUNLOCK(inp);
 650                         SCTP_INP_INFO_RUNLOCK();
 651                         error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
 652                         if (error) {
 653                                 SCTP_INP_DECR_REF(inp);
 654                                 return (error);
 655                         }
 656                         SCTP_INP_INFO_RLOCK();
 657                         SCTP_INP_RLOCK(inp);
 658                 }
 659                 SCTP_INP_DECR_REF(inp);
 660                 SCTP_INP_RUNLOCK(inp);
 661                 SCTP_INP_INFO_RUNLOCK();
 662                 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
 663                 xstcb.last = 1;
 664                 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
 665                 if (error) {
 666                         return (error);
 667                 }
 668 skip:
 669                 SCTP_INP_INFO_RLOCK();
 670         }
 671         SCTP_INP_INFO_RUNLOCK();
 672
 673         memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
 674         xinpcb.last = 1;
 675         error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
 676         return (error);
 677 }
 678
 679 #if defined(__APPLE__) && !defined(__Userspace__)
 680 static int
 681 sctp_sysctl_handle_udp_tunneling SYSCTL_HANDLER_ARGS
 682 {
 683 #pragma unused(arg1, arg2)
 684 #else
 685 static int
 686 sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS)
 687 {
 688 #endif
 689         int error;
 690         uint32_t old, new;
 691
 692         SCTP_INP_INFO_RLOCK();
 693         old = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
 694         SCTP_INP_INFO_RUNLOCK();
 695         new = old;
 696         error = sysctl_handle_int(oidp, &new, 0, req);
 697         if ((error == 0) &&
 698 #if defined(__APPLE__) && !defined(__Userspace__)
 699             (req->newptr != USER_ADDR_NULL)) {
 700 #else
 701             (req->newptr != NULL)) {
 702 #endif
 703 #if defined(_WIN32) && !defined(__Userspace__)
 704                 SCTP_INP_INFO_WLOCK();
 705                 sctp_over_udp_restart();
 706                 SCTP_INP_INFO_WUNLOCK();
 707 #else
 708 #if (SCTPCTL_UDP_TUNNELING_PORT_MIN == 0)
 709                 if (new > SCTPCTL_UDP_TUNNELING_PORT_MAX) {
 710 #else
 711                 if ((new < SCTPCTL_UDP_TUNNELING_PORT_MIN) ||
 712                     (new > SCTPCTL_UDP_TUNNELING_PORT_MAX)) {
 713 #endif
 714                         error = EINVAL;
 715                 } else {
 716                         SCTP_INP_INFO_WLOCK();
 717                         SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = new;
 718                         if (old != 0) {
 719                                 sctp_over_udp_stop();
 720                         }
 721                         if (new != 0) {
 722                                 error = sctp_over_udp_start();
 723                         }
 724                         SCTP_INP_INFO_WUNLOCK();
 725                 }
 726 #endif
 727         }
 728         return (error);
 729 }
 730
 731 #if defined(__APPLE__) && !defined(__Userspace__)
 732 int sctp_is_vmware_interface(struct ifnet *);
 733
 734 static int
 735 sctp_sysctl_handle_vmware_interfaces SYSCTL_HANDLER_ARGS
 736 {
 737 #pragma unused(arg1, arg2)
 738         int error;
 739         uint32_t old, new;
 740
 741         old = SCTP_BASE_SYSCTL(sctp_ignore_vmware_interfaces);
 742         new = old;
 743         error = sysctl_handle_int(oidp, &new, 0, req);
 744         if ((error == 0) && (req->newptr != USER_ADDR_NULL)) {
 745                 if ((new < SCTPCTL_IGNORE_VMWARE_INTERFACES_MIN) ||
 746                     (new > SCTPCTL_IGNORE_VMWARE_INTERFACES_MAX)) {
 747                         error = EINVAL;
 748                 } else {
 749                         if ((old == 1) && (new == 0)) {
 750                                 sctp_add_or_del_interfaces(sctp_is_vmware_interface, 1);
 751                         }
 752                         if ((old == 0) && (new == 1)) {
 753                                 sctp_add_or_del_interfaces(sctp_is_vmware_interface, 0);
 754                         }
 755                         if (old != new) {
 756                                 SCTP_BASE_SYSCTL(sctp_ignore_vmware_interfaces) = new;
 757                         }
 758                 }
 759         }
 760         return (error);
 761 }
 762 #endif
 763
 764 #if defined(__APPLE__) && !defined(__Userspace__)
 765 static int
 766 sctp_sysctl_handle_auth SYSCTL_HANDLER_ARGS
 767 {
 768 #pragma unused(arg1, arg2)
 769 #else
 770 static int
 771 sctp_sysctl_handle_auth(SYSCTL_HANDLER_ARGS)
 772 {
 773 #endif
 774         int error;
 775         uint32_t new;
 776
 777         new = SCTP_BASE_SYSCTL(sctp_auth_enable);
 778         error = sysctl_handle_int(oidp, &new, 0, req);
 779         if ((error == 0) &&
 780 #if defined(__APPLE__) && !defined(__Userspace__)
 781             (req->newptr != USER_ADDR_NULL)) {
 782 #else
 783             (req->newptr != NULL)) {
 784 #endif
 785 #if (SCTPCTL_AUTH_ENABLE_MIN == 0)
 786                 if ((new > SCTPCTL_AUTH_ENABLE_MAX) ||
 787                     ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
 788 #else
 789                 if ((new < SCTPCTL_AUTH_ENABLE_MIN) ||
 790                     (new > SCTPCTL_AUTH_ENABLE_MAX) ||
 791                     ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
 792 #endif
 793                         error = EINVAL;
 794                 } else {
 795                         SCTP_BASE_SYSCTL(sctp_auth_enable) = new;
 796                 }
 797         }
 798         return (error);
 799 }
 800
 801 #if defined(__APPLE__) && !defined(__Userspace__)
 802 static int
 803 sctp_sysctl_handle_asconf SYSCTL_HANDLER_ARGS
 804 {
 805 #pragma unused(arg1, arg2)
 806 #else
 807 static int
 808 sctp_sysctl_handle_asconf(SYSCTL_HANDLER_ARGS)
 809 {
 810 #endif
 811         int error;
 812         uint32_t new;
 813
 814         new = SCTP_BASE_SYSCTL(sctp_asconf_enable);
 815         error = sysctl_handle_int(oidp, &new, 0, req);
 816         if ((error == 0) &&
 817 #if defined(__APPLE__) && !defined(__Userspace__)
 818             (req->newptr != USER_ADDR_NULL)) {
 819 #else
 820             (req->newptr != NULL)) {
 821 #endif
 822 #if (SCTPCTL_ASCONF_ENABLE_MIN == 0)
 823                 if ((new > SCTPCTL_ASCONF_ENABLE_MAX) ||
 824                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
 825 #else
 826                 if ((new < SCTPCTL_ASCONF_ENABLE_MIN) ||
 827                     (new > SCTPCTL_ASCONF_ENABLE_MAX) ||
 828                     ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
 829 #endif
 830                         error = EINVAL;
 831                 } else {
 832                         SCTP_BASE_SYSCTL(sctp_asconf_enable) = new;
 833                 }
 834         }
 835         return (error);
 836 }
 837
 838 #if defined(__APPLE__) && !defined(__Userspace__)
 839 static int
 840 sctp_sysctl_handle_stats SYSCTL_HANDLER_ARGS
 841 {
 842 #pragma unused(oidp, arg1, arg2)
 843 #else
 844 static int
 845 sctp_sysctl_handle_stats(SYSCTL_HANDLER_ARGS)
 846 {
 847 #endif
 848         int error;
 849 #if defined(__FreeBSD__) && !defined(__Userspace__)
 850 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
 851         struct sctpstat *sarry;
 852         struct sctpstat sb;
 853         int cpu;
 854 #endif
 855         struct sctpstat sb_temp;
 856 #endif
 857
 858 #if defined(__APPLE__) && !defined(__Userspace__)
 859         if ((req->newptr != USER_ADDR_NULL) &&
 860 #else
 861         if ((req->newptr != NULL) &&
 862 #endif
 863             (req->newlen != sizeof(struct sctpstat))) {
 864                 return (EINVAL);
 865         }
 866 #if defined(__FreeBSD__) && !defined(__Userspace__)
 867         memset(&sb_temp, 0, sizeof(struct sctpstat));
 868
 869         if (req->newptr != NULL) {
 870                 error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat));
 871                 if (error != 0) {
 872                         return (error);
 873                 }
 874         }
 875 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
 876         memset(&sb, 0, sizeof(sb));
 877         for (cpu = 0; cpu < mp_maxid; cpu++) {
 878                 sarry = &SCTP_BASE_STATS[cpu];
 879                 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
 880                         sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
 881                         sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
 882                 }
 883                 sb.sctps_currestab += sarry->sctps_currestab;
 884                 sb.sctps_activeestab += sarry->sctps_activeestab;
 885                 sb.sctps_restartestab += sarry->sctps_restartestab;
 886                 sb.sctps_collisionestab += sarry->sctps_collisionestab;
 887                 sb.sctps_passiveestab += sarry->sctps_passiveestab;
 888                 sb.sctps_aborted += sarry->sctps_aborted;
 889                 sb.sctps_shutdown += sarry->sctps_shutdown;
 890                 sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
 891                 sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
 892                 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
 893                 sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
 894                 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
 895                 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
 896                 sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
 897                 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
 898                 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
 899                 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
 900                 sb.sctps_outpackets += sarry->sctps_outpackets;
 901                 sb.sctps_inpackets += sarry->sctps_inpackets;
 902                 sb.sctps_recvpackets += sarry->sctps_recvpackets;
 903                 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
 904                 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
 905                 sb.sctps_recvsacks += sarry->sctps_recvsacks;
 906                 sb.sctps_recvdata += sarry->sctps_recvdata;
 907                 sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
 908                 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
 909                 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
 910                 sb.sctps_recvecne += sarry->sctps_recvecne;
 911                 sb.sctps_recvauth += sarry->sctps_recvauth;
 912                 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
 913                 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
 914                 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
 915                 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
 916                 sb.sctps_recvexpress += sarry->sctps_recvexpress;
 917                 sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
 918                 sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
 919                 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
 920                 sb.sctps_sendpackets += sarry->sctps_sendpackets;
 921                 sb.sctps_sendsacks += sarry->sctps_sendsacks;
 922                 sb.sctps_senddata += sarry->sctps_senddata;
 923                 sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
 924                 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
 925                 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
 926                 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
 927                 sb.sctps_sendecne += sarry->sctps_sendecne;
 928                 sb.sctps_sendauth += sarry->sctps_sendauth;
 929                 sb.sctps_senderrors += sarry->sctps_senderrors;
 930                 sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
 931                 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
 932                 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
 933                 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
 934                 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
 935                 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
 936                 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
 937                 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
 938                 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
 939                 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
 940                 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
 941                 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
 942                 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
 943                 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
 944                 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
 945                 sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
 946                 sb.sctps_timoiterator += sarry->sctps_timoiterator;
 947                 sb.sctps_timodata += sarry->sctps_timodata;
 948                 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
 949                 sb.sctps_timoinit += sarry->sctps_timoinit;
 950                 sb.sctps_timosack += sarry->sctps_timosack;
 951                 sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
 952                 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
 953                 sb.sctps_timocookie += sarry->sctps_timocookie;
 954                 sb.sctps_timosecret += sarry->sctps_timosecret;
 955                 sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
 956                 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
 957                 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
 958                 sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
 959                 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
 960                 sb.sctps_timoasconf += sarry->sctps_timoasconf;
 961                 sb.sctps_timodelprim += sarry->sctps_timodelprim;
 962                 sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
 963                 sb.sctps_timoassockill += sarry->sctps_timoassockill;
 964                 sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
 965                 sb.sctps_hdrops += sarry->sctps_hdrops;
 966                 sb.sctps_badsum += sarry->sctps_badsum;
 967                 sb.sctps_noport += sarry->sctps_noport;
 968                 sb.sctps_badvtag += sarry->sctps_badvtag;
 969                 sb.sctps_badsid += sarry->sctps_badsid;
 970                 sb.sctps_nomem += sarry->sctps_nomem;
 971                 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
 972                 sb.sctps_markedretrans += sarry->sctps_markedretrans;
 973                 sb.sctps_naglesent += sarry->sctps_naglesent;
 974                 sb.sctps_naglequeued += sarry->sctps_naglequeued;
 975                 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
 976                 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
 977                 sb.sctps_windowprobed += sarry->sctps_windowprobed;
 978                 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
 979                 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
 980                 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
 981                 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
 982                 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
 983                 sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
 984                 sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
 985                 sb.sctps_primary_randry += sarry->sctps_primary_randry;
 986                 sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
 987                 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
 988                 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
 989                 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
 990                 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
 991                 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
 992                 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
 993                 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
 994                 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
 995                 sb.sctps_read_peeks += sarry->sctps_read_peeks;
 996                 sb.sctps_cached_chk += sarry->sctps_cached_chk;
 997                 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
 998                 sb.sctps_left_abandon += sarry->sctps_left_abandon;
 999                 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
1000                 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
1001                 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
1002                 if (req->newptr != NULL) {
1003                         memcpy(sarry, &sb_temp, sizeof(struct sctpstat));
1004                 }
1005         }
1006         error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat));
1007 #else
1008         error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat));
1009         if (error != 0) {
1010                 return (error);
1011         }
1012         if (req->newptr != NULL) {
1013                 memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat));
1014         }
1015 #endif
1016 #else
1017         error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat));
1018 #endif
1019         return (error);
1020 }
1021
1022 #if defined(SCTP_LOCAL_TRACE_BUF)
1023 #if defined(__APPLE__) && !defined(__Userspace__)
1024 static int
1025 sctp_sysctl_handle_trace_log SYSCTL_HANDLER_ARGS
1026 {
1027 #pragma unused(arg1, arg2, oidp)
1028 #else
1029 static int
1030 sctp_sysctl_handle_trace_log(SYSCTL_HANDLER_ARGS)
1031 {
1032 #endif
1033         int error;
1034
1035 #if defined(_WIN32) && !defined(__Userspace__)
1036         error = SYSCTL_OUT(req, SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log));
1037 #else
1038         error = SYSCTL_OUT(req, &SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log));
1039 #endif
1040         return (error);
1041 }
1042
1043 #if defined(__APPLE__) && !defined(__Userspace__)
1044 static int
1045 sctp_sysctl_handle_trace_log_clear SYSCTL_HANDLER_ARGS
1046 {
1047 #pragma unused(arg1, arg2, req, oidp)
1048 #else
1049 static int
1050 sctp_sysctl_handle_trace_log_clear(SYSCTL_HANDLER_ARGS)
1051 {
1052 #endif
1053         int error = 0;
1054 #if defined(_WIN32) && !defined(__Userspace__)
1055         int value = 0;
1056
1057         if (req->new_data == NULL) {
1058                 return (error);
1059         }
1060         error = SYSCTL_IN(req, &value, sizeof(int));
1061         if (error == 0 && value != 0 && SCTP_BASE_SYSCTL(sctp_log) != NULL) {
1062                 memset(SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
1063         }
1064 #else
1065
1066         memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
1067 #endif
1068         return (error);
1069 }
1070 #endif
1071
1072 #if (defined(__APPLE__) || defined(__FreeBSD__)) && !defined(__Userspace__)
1073 #if defined(__FreeBSD__)
1074 #define SCTP_UINT_SYSCTL(mib_name, var_name, prefix)                    \
1075         static int                                                      \
1076         sctp_sysctl_handle_##mib_name(SYSCTL_HANDLER_ARGS)              \
1077         {                                                               \
1078                 int error;                                              \
1079                 uint32_t new;                                           \
1080                                                                         \
1081                 new = SCTP_BASE_SYSCTL(var_name);                       \
1082                 error = sysctl_handle_int(oidp, &new, 0, req);          \
1083                 if ((error == 0) && (req->newptr != NULL)) {            \
1084                         if ((new < prefix##_MIN) ||                     \
1085                             (new > prefix##_MAX)) {                     \
1086                                 error = EINVAL;                         \
1087                         } else {                                        \
1088                                 SCTP_BASE_SYSCTL(var_name) = new;       \
1089                         }                                               \
1090                 }                                                       \
1091                 return (error);                                         \
1092         }                                                               \
1093         SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name,                 \
1094                          CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW, NULL, 0, \
1095                          sctp_sysctl_handle_##mib_name, "UI", prefix##_DESC);
1096 #else
1097 #define SCTP_UINT_SYSCTL(mib_name, var_name, prefix)                    \
1098         static int                                                      \
1099         sctp_sysctl_handle_##mib_name(struct sysctl_oid *oidp,          \
1100                                   void *arg1 __attribute__((unused)),   \
1101                                   int arg2 __attribute__((unused)),     \
1102                                   struct sysctl_req *req)               \
1103         {                                                               \
1104                 int error;                                              \
1105                 uint32_t new;                                           \
1106                                                                         \
1107                 new = SCTP_BASE_SYSCTL(var_name);                       \
1108                 error = sysctl_handle_int(oidp, &new, 0, req);          \
1109                 if ((error == 0) && (req->newptr != USER_ADDR_NULL)) {  \
1110                         if ((new < prefix##_MIN) ||                     \
1111                             (new > prefix##_MAX)) {                     \
1112                                 error = EINVAL;                         \
1113                         } else {                                        \
1114                                 SCTP_BASE_SYSCTL(var_name) = new;       \
1115                         }                                               \
1116                 }                                                       \
1117                 return (error);                                         \
1118         }                                                               \
1119         SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name,                 \
1120                     CTLTYPE_INT | CTLFLAG_RW, NULL, 0,                  \
1121                     sctp_sysctl_handle_##mib_name, "I", prefix##_DESC);
1122 #define CTLTYPE_UINT CTLTYPE_INT
1123 #define CTLFLAG_VNET 0
1124 #endif
1125
1126 /*
1127  * sysctl definitions
1128  */
1129
1130 SCTP_UINT_SYSCTL(sendspace, sctp_sendspace, SCTPCTL_MAXDGRAM)
1131 SCTP_UINT_SYSCTL(recvspace, sctp_recvspace, SCTPCTL_RECVSPACE)
1132 SCTP_UINT_SYSCTL(auto_asconf, sctp_auto_asconf, SCTPCTL_AUTOASCONF)
1133 SCTP_UINT_SYSCTL(ecn_enable, sctp_ecn_enable, SCTPCTL_ECN_ENABLE)
1134 SCTP_UINT_SYSCTL(pr_enable, sctp_pr_enable, SCTPCTL_PR_ENABLE)
1135 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_enable, CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW,
1136             NULL, 0, sctp_sysctl_handle_auth, "IU", SCTPCTL_AUTH_ENABLE_DESC);
1137 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_enable, CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW,
1138             NULL, 0, sctp_sysctl_handle_asconf, "IU", SCTPCTL_ASCONF_ENABLE_DESC);
1139 SCTP_UINT_SYSCTL(reconfig_enable, sctp_reconfig_enable, SCTPCTL_RECONFIG_ENABLE)
1140 SCTP_UINT_SYSCTL(nrsack_enable, sctp_nrsack_enable, SCTPCTL_NRSACK_ENABLE)
1141 SCTP_UINT_SYSCTL(pktdrop_enable, sctp_pktdrop_enable, SCTPCTL_PKTDROP_ENABLE)
1142 #if defined(__APPLE__) && !defined(__Userspace__)
1143 SCTP_UINT_SYSCTL(loopback_nocsum, sctp_no_csum_on_loopback, SCTPCTL_LOOPBACK_NOCSUM)
1144 #endif
1145 SCTP_UINT_SYSCTL(peer_chkoh, sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH)
1146 SCTP_UINT_SYSCTL(maxburst, sctp_max_burst_default, SCTPCTL_MAXBURST)
1147 SCTP_UINT_SYSCTL(fr_maxburst, sctp_fr_max_burst_default, SCTPCTL_FRMAXBURST)
1148 SCTP_UINT_SYSCTL(maxchunks, sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS)
1149 SCTP_UINT_SYSCTL(tcbhashsize, sctp_hashtblsize, SCTPCTL_TCBHASHSIZE)
1150 SCTP_UINT_SYSCTL(pcbhashsize, sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE)
1151 SCTP_UINT_SYSCTL(min_split_point, sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT)
1152 SCTP_UINT_SYSCTL(chunkscale, sctp_chunkscale, SCTPCTL_CHUNKSCALE)
1153 SCTP_UINT_SYSCTL(delayed_sack_time, sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME)
1154 SCTP_UINT_SYSCTL(sack_freq, sctp_sack_freq_default, SCTPCTL_SACK_FREQ)
1155 SCTP_UINT_SYSCTL(sys_resource, sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE)
1156 SCTP_UINT_SYSCTL(asoc_resource, sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE)
1157 SCTP_UINT_SYSCTL(heartbeat_interval, sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL)
1158 SCTP_UINT_SYSCTL(pmtu_raise_time, sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME)
1159 SCTP_UINT_SYSCTL(shutdown_guard_time, sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME)
1160 SCTP_UINT_SYSCTL(secret_lifetime, sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME)
1161 SCTP_UINT_SYSCTL(rto_max, sctp_rto_max_default, SCTPCTL_RTO_MAX)
1162 SCTP_UINT_SYSCTL(rto_min, sctp_rto_min_default, SCTPCTL_RTO_MIN)
1163 SCTP_UINT_SYSCTL(rto_initial, sctp_rto_initial_default, SCTPCTL_RTO_INITIAL)
1164 SCTP_UINT_SYSCTL(init_rto_max, sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX)
1165 SCTP_UINT_SYSCTL(valid_cookie_life, sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE)
1166 SCTP_UINT_SYSCTL(init_rtx_max, sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX)
1167 SCTP_UINT_SYSCTL(assoc_rtx_max, sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX)
1168 SCTP_UINT_SYSCTL(path_rtx_max, sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX)
1169 SCTP_UINT_SYSCTL(path_pf_threshold, sctp_path_pf_threshold, SCTPCTL_PATH_PF_THRESHOLD)
1170 SCTP_UINT_SYSCTL(add_more_on_output, sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT)
1171 SCTP_UINT_SYSCTL(incoming_streams, sctp_nr_incoming_streams_default, SCTPCTL_INCOMING_STREAMS)
1172 SCTP_UINT_SYSCTL(outgoing_streams, sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS)
1173 SCTP_UINT_SYSCTL(cmt_on_off, sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF)
1174 SCTP_UINT_SYSCTL(cmt_use_dac, sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC)
1175 SCTP_UINT_SYSCTL(cwnd_maxburst, sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST)
1176 SCTP_UINT_SYSCTL(nat_friendly, sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY)
1177 SCTP_UINT_SYSCTL(abc_l_var, sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR)
1178 SCTP_UINT_SYSCTL(max_chained_mbufs, sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS)
1179 SCTP_UINT_SYSCTL(do_sctp_drain, sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN)
1180 SCTP_UINT_SYSCTL(hb_max_burst, sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST)
1181 SCTP_UINT_SYSCTL(abort_at_limit, sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT)
1182 SCTP_UINT_SYSCTL(min_residual, sctp_min_residual, SCTPCTL_MIN_RESIDUAL)
1183 SCTP_UINT_SYSCTL(max_retran_chunk, sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK)
1184 SCTP_UINT_SYSCTL(log_level, sctp_logging_level, SCTPCTL_LOGGING_LEVEL)
1185 SCTP_UINT_SYSCTL(default_cc_module, sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE)
1186 SCTP_UINT_SYSCTL(default_ss_module, sctp_default_ss_module, SCTPCTL_DEFAULT_SS_MODULE)
1187 SCTP_UINT_SYSCTL(default_frag_interleave, sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE)
1188 SCTP_UINT_SYSCTL(mobility_base, sctp_mobility_base, SCTPCTL_MOBILITY_BASE)
1189 SCTP_UINT_SYSCTL(mobility_fasthandoff, sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF)
1190 #if defined(SCTP_LOCAL_TRACE_BUF)
1191 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log, CTLFLAG_VNET|CTLTYPE_STRUCT|CTLFLAG_RD,
1192             NULL, 0, sctp_sysctl_handle_trace_log, "S,sctplog", "SCTP logging (struct sctp_log)");
1193 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLFLAG_VNET|CTLTYPE_UINT | CTLFLAG_RW,
1194             NULL, 0, sctp_sysctl_handle_trace_log_clear, "IU", "Clear SCTP Logging buffer");
1195 #endif
1196 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW,
1197             NULL, 0, sctp_sysctl_handle_udp_tunneling, "IU", SCTPCTL_UDP_TUNNELING_PORT_DESC);
1198 SCTP_UINT_SYSCTL(enable_sack_immediately, sctp_enable_sack_immediately, SCTPCTL_SACK_IMMEDIATELY_ENABLE)
1199 SCTP_UINT_SYSCTL(nat_friendly_init, sctp_inits_include_nat_friendly, SCTPCTL_NAT_FRIENDLY_INITS)
1200 SCTP_UINT_SYSCTL(vtag_time_wait, sctp_vtag_time_wait, SCTPCTL_TIME_WAIT)
1201 SCTP_UINT_SYSCTL(buffer_splitting, sctp_buffer_splitting, SCTPCTL_BUFFER_SPLITTING)
1202 SCTP_UINT_SYSCTL(initial_cwnd, sctp_initial_cwnd, SCTPCTL_INITIAL_CWND)
1203 SCTP_UINT_SYSCTL(rttvar_bw, sctp_rttvar_bw, SCTPCTL_RTTVAR_BW)
1204 SCTP_UINT_SYSCTL(rttvar_rtt, sctp_rttvar_rtt, SCTPCTL_RTTVAR_RTT)
1205 SCTP_UINT_SYSCTL(rttvar_eqret, sctp_rttvar_eqret, SCTPCTL_RTTVAR_EQRET)
1206 SCTP_UINT_SYSCTL(rttvar_steady_step, sctp_steady_step, SCTPCTL_RTTVAR_STEADYS)
1207 SCTP_UINT_SYSCTL(use_dcccecn, sctp_use_dccc_ecn, SCTPCTL_RTTVAR_DCCCECN)
1208 SCTP_UINT_SYSCTL(blackhole, sctp_blackhole, SCTPCTL_BLACKHOLE)
1209 SCTP_UINT_SYSCTL(sendall_limit, sctp_sendall_limit, SCTPCTL_SENDALL_LIMIT)
1210 SCTP_UINT_SYSCTL(diag_info_code, sctp_diag_info_code, SCTPCTL_DIAG_INFO_CODE)
1211 #ifdef SCTP_DEBUG
1212 SCTP_UINT_SYSCTL(debug, sctp_debug_on, SCTPCTL_DEBUG)
1213 #endif
1214 #if defined(__APPLE__) && !defined(__Userspace__)
1215 SCTP_UINT_SYSCTL(main_timer, sctp_main_timer, SCTPCTL_MAIN_TIMER)
1216 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, ignore_vmware_interfaces, CTLTYPE_UINT|CTLFLAG_RW,
1217             NULL, 0, sctp_sysctl_handle_vmware_interfaces, "IU", SCTPCTL_IGNORE_VMWARE_INTERFACES_DESC);
1218 SCTP_UINT_SYSCTL(addr_watchdog_limit, sctp_addr_watchdog_limit, SCTPCTL_ADDR_WATCHDOG_LIMIT)
1219 SCTP_UINT_SYSCTL(vtag_watchdog_limit, sctp_vtag_watchdog_limit, SCTPCTL_VTAG_WATCHDOG_LIMIT)
1220 #endif
1221 #if defined(__APPLE__) && !defined(__Userspace__)
1222 SCTP_UINT_SYSCTL(output_unlocked, sctp_output_unlocked, SCTPCTL_OUTPUT_UNLOCKED)
1223 #endif
1224 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_VNET|CTLTYPE_STRUCT|CTLFLAG_RW,
1225             NULL, 0, sctp_sysctl_handle_stats, "S,sctpstat", "SCTP statistics (struct sctp_stat)");
1226 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_VNET|CTLTYPE_OPAQUE|CTLFLAG_RD,
1227             NULL, 0, sctp_sysctl_handle_assoclist, "S,xassoc", "List of active SCTP associations");
1228
1229 #elif defined(_WIN32) && !defined(__Userspace__)
1230
1231 #define RANGECHK(var, min, max) \
1232         if ((var) < (min)) { (var) = (min); } \
1233         else if ((var) > (max)) { (var) = (max); }
1234
1235 static int
1236 sctp_sysctl_handle_int(SYSCTL_HANDLER_ARGS)
1237 {
1238         int error;
1239
1240         error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
1241         if (error == 0) {
1242                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sendspace), SCTPCTL_MAXDGRAM_MIN, SCTPCTL_MAXDGRAM_MAX);
1243                 RANGECHK(SCTP_BASE_SYSCTL(sctp_recvspace), SCTPCTL_RECVSPACE_MIN, SCTPCTL_RECVSPACE_MAX);
1244                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auto_asconf), SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
1245                 RANGECHK(SCTP_BASE_SYSCTL(sctp_auto_asconf), SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
1246                 RANGECHK(SCTP_BASE_SYSCTL(sctp_ecn_enable), SCTPCTL_ECN_ENABLE_MIN, SCTPCTL_ECN_ENABLE_MAX);
1247                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pr_enable), SCTPCTL_PR_ENABLE_MIN, SCTPCTL_PR_ENABLE_MAX);
1248                 RANGECHK(SCTP_BASE_SYSCTL(sctp_reconfig_enable), SCTPCTL_RECONFIG_ENABLE_MIN, SCTPCTL_RECONFIG_ENABLE_MAX);
1249                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nrsack_enable), SCTPCTL_NRSACK_ENABLE_MIN, SCTPCTL_NRSACK_ENABLE_MAX);
1250                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pktdrop_enable), SCTPCTL_PKTDROP_ENABLE_MIN, SCTPCTL_PKTDROP_ENABLE_MAX);
1251                 RANGECHK(SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), SCTPCTL_LOOPBACK_NOCSUM_MIN, SCTPCTL_LOOPBACK_NOCSUM_MAX);
1252                 RANGECHK(SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), SCTPCTL_PEER_CHKOH_MIN, SCTPCTL_PEER_CHKOH_MAX);
1253                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_burst_default), SCTPCTL_MAXBURST_MIN, SCTPCTL_MAXBURST_MAX);
1254                 RANGECHK(SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), SCTPCTL_FRMAXBURST_MIN, SCTPCTL_FRMAXBURST_MAX);
1255                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), SCTPCTL_MAXCHUNKS_MIN, SCTPCTL_MAXCHUNKS_MAX);
1256                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hashtblsize), SCTPCTL_TCBHASHSIZE_MIN, SCTPCTL_TCBHASHSIZE_MAX);
1257                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pcbtblsize), SCTPCTL_PCBHASHSIZE_MIN, SCTPCTL_PCBHASHSIZE_MAX);
1258                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_split_point), SCTPCTL_MIN_SPLIT_POINT_MIN, SCTPCTL_MIN_SPLIT_POINT_MAX);
1259                 RANGECHK(SCTP_BASE_SYSCTL(sctp_chunkscale), SCTPCTL_CHUNKSCALE_MIN, SCTPCTL_CHUNKSCALE_MAX);
1260                 RANGECHK(SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), SCTPCTL_DELAYED_SACK_TIME_MIN, SCTPCTL_DELAYED_SACK_TIME_MAX);
1261                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sack_freq_default), SCTPCTL_SACK_FREQ_MIN, SCTPCTL_SACK_FREQ_MAX);
1262                 RANGECHK(SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), SCTPCTL_SYS_RESOURCE_MIN, SCTPCTL_SYS_RESOURCE_MAX);
1263                 RANGECHK(SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), SCTPCTL_ASOC_RESOURCE_MIN, SCTPCTL_ASOC_RESOURCE_MAX);
1264                 RANGECHK(SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), SCTPCTL_HEARTBEAT_INTERVAL_MIN, SCTPCTL_HEARTBEAT_INTERVAL_MAX);
1265                 RANGECHK(SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), SCTPCTL_PMTU_RAISE_TIME_MIN, SCTPCTL_PMTU_RAISE_TIME_MAX);
1266                 RANGECHK(SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), SCTPCTL_SHUTDOWN_GUARD_TIME_MIN, SCTPCTL_SHUTDOWN_GUARD_TIME_MAX);
1267                 RANGECHK(SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), SCTPCTL_SECRET_LIFETIME_MIN, SCTPCTL_SECRET_LIFETIME_MAX);
1268                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_max_default), SCTPCTL_RTO_MAX_MIN, SCTPCTL_RTO_MAX_MAX);
1269                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_min_default), SCTPCTL_RTO_MIN_MIN, SCTPCTL_RTO_MIN_MAX);
1270                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_initial_default), SCTPCTL_RTO_INITIAL_MIN, SCTPCTL_RTO_INITIAL_MAX);
1271                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rto_max_default), SCTPCTL_INIT_RTO_MAX_MIN, SCTPCTL_INIT_RTO_MAX_MAX);
1272                 RANGECHK(SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), SCTPCTL_VALID_COOKIE_LIFE_MIN, SCTPCTL_VALID_COOKIE_LIFE_MAX);
1273                 RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), SCTPCTL_INIT_RTX_MAX_MIN, SCTPCTL_INIT_RTX_MAX_MAX);
1274                 RANGECHK(SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), SCTPCTL_ASSOC_RTX_MAX_MIN, SCTPCTL_ASSOC_RTX_MAX_MAX);
1275                 RANGECHK(SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), SCTPCTL_PATH_RTX_MAX_MIN, SCTPCTL_PATH_RTX_MAX_MAX);
1276                 RANGECHK(SCTP_BASE_SYSCTL(sctp_path_pf_threshold), SCTPCTL_PATH_PF_THRESHOLD_MIN, SCTPCTL_PATH_PF_THRESHOLD_MAX);
1277                 RANGECHK(SCTP_BASE_SYSCTL(sctp_add_more_threshold), SCTPCTL_ADD_MORE_ON_OUTPUT_MIN, SCTPCTL_ADD_MORE_ON_OUTPUT_MAX);
1278                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default), SCTPCTL_INCOMING_STREAMS_MIN, SCTPCTL_INCOMING_STREAMS_MAX);
1279                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), SCTPCTL_OUTGOING_STREAMS_MIN, SCTPCTL_OUTGOING_STREAMS_MAX);
1280                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_on_off), SCTPCTL_CMT_ON_OFF_MIN, SCTPCTL_CMT_ON_OFF_MAX);
1281                 RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_use_dac), SCTPCTL_CMT_USE_DAC_MIN, SCTPCTL_CMT_USE_DAC_MAX);
1282                 RANGECHK(SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), SCTPCTL_CWND_MAXBURST_MIN, SCTPCTL_CWND_MAXBURST_MAX);
1283                 RANGECHK(SCTP_BASE_SYSCTL(sctp_nat_friendly), SCTPCTL_NAT_FRIENDLY_MIN, SCTPCTL_NAT_FRIENDLY_MAX);
1284                 RANGECHK(SCTP_BASE_SYSCTL(sctp_L2_abc_variable), SCTPCTL_ABC_L_VAR_MIN, SCTPCTL_ABC_L_VAR_MAX);
1285                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), SCTPCTL_MAX_CHAINED_MBUFS_MIN, SCTPCTL_MAX_CHAINED_MBUFS_MAX);
1286                 RANGECHK(SCTP_BASE_SYSCTL(sctp_do_drain), SCTPCTL_DO_SCTP_DRAIN_MIN, SCTPCTL_DO_SCTP_DRAIN_MAX);
1287                 RANGECHK(SCTP_BASE_SYSCTL(sctp_hb_maxburst), SCTPCTL_HB_MAX_BURST_MIN, SCTPCTL_HB_MAX_BURST_MAX);
1288                 RANGECHK(SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), SCTPCTL_ABORT_AT_LIMIT_MIN, SCTPCTL_ABORT_AT_LIMIT_MAX);
1289                 RANGECHK(SCTP_BASE_SYSCTL(sctp_min_residual), SCTPCTL_MIN_RESIDUAL_MIN, SCTPCTL_MIN_RESIDUAL_MAX);
1290                 RANGECHK(SCTP_BASE_SYSCTL(sctp_max_retran_chunk), SCTPCTL_MAX_RETRAN_CHUNK_MIN, SCTPCTL_MAX_RETRAN_CHUNK_MAX);
1291                 RANGECHK(SCTP_BASE_SYSCTL(sctp_logging_level), SCTPCTL_LOGGING_LEVEL_MIN, SCTPCTL_LOGGING_LEVEL_MAX);
1292                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_cc_module), SCTPCTL_DEFAULT_CC_MODULE_MIN, SCTPCTL_DEFAULT_CC_MODULE_MAX);
1293                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_ss_module), SCTPCTL_DEFAULT_SS_MODULE_MIN, SCTPCTL_DEFAULT_SS_MODULE_MAX);
1294                 RANGECHK(SCTP_BASE_SYSCTL(sctp_default_frag_interleave), SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX);
1295                 RANGECHK(SCTP_BASE_SYSCTL(sctp_vtag_time_wait), SCTPCTL_TIME_WAIT_MIN, SCTPCTL_TIME_WAIT_MAX);
1296                 RANGECHK(SCTP_BASE_SYSCTL(sctp_buffer_splitting), SCTPCTL_BUFFER_SPLITTING_MIN, SCTPCTL_BUFFER_SPLITTING_MAX);
1297                 RANGECHK(SCTP_BASE_SYSCTL(sctp_initial_cwnd), SCTPCTL_INITIAL_CWND_MIN, SCTPCTL_INITIAL_CWND_MAX);
1298                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_bw), SCTPCTL_RTTVAR_BW_MIN, SCTPCTL_RTTVAR_BW_MAX);
1299                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_rtt), SCTPCTL_RTTVAR_RTT_MIN, SCTPCTL_RTTVAR_RTT_MAX);
1300                 RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_eqret), SCTPCTL_RTTVAR_EQRET_MIN, SCTPCTL_RTTVAR_EQRET_MAX);
1301                 RANGECHK(SCTP_BASE_SYSCTL(sctp_steady_step), SCTPCTL_RTTVAR_STEADYS_MIN, SCTPCTL_RTTVAR_STEADYS_MAX);
1302                 RANGECHK(SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), SCTPCTL_RTTVAR_DCCCECN_MIN, SCTPCTL_RTTVAR_DCCCECN_MAX);
1303                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_base), SCTPCTL_MOBILITY_BASE_MIN, SCTPCTL_MOBILITY_BASE_MAX);
1304                 RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), SCTPCTL_MOBILITY_FASTHANDOFF_MIN, SCTPCTL_MOBILITY_FASTHANDOFF_MAX);
1305                 RANGECHK(SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN, SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX);
1306                 RANGECHK(SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), SCTPCTL_NAT_FRIENDLY_INITS_MIN, SCTPCTL_NAT_FRIENDLY_INITS_MAX);
1307                 RANGECHK(SCTP_BASE_SYSCTL(sctp_blackhole), SCTPCTL_BLACKHOLE_MIN, SCTPCTL_BLACKHOLE_MAX);
1308                 RANGECHK(SCTP_BASE_SYSCTL(sctp_sendall_limit), SCTPCTL_SENDALL_LIMIT_MIN, SCTPCTL_SENDALL_LIMIT_MAX);
1309                 RANGECHK(SCTP_BASE_SYSCTL(sctp_diag_info_code), SCTPCTL_DIAG_INFO_CODE_MIN, SCTPCTL_DIAG_INFO_CODE_MAX);
1310 #ifdef SCTP_DEBUG
1311                 RANGECHK(SCTP_BASE_SYSCTL(sctp_debug_on), SCTPCTL_DEBUG_MIN, SCTPCTL_DEBUG_MAX);
1312 #endif
1313         }
1314         return (error);
1315 }
1316
1317 void
1318 sysctl_setup_sctp(void)
1319 {
1320         sysctl_add_oid(&sysctl_oid_top, "sendspace", CTLTYPE_INT|CTLFLAG_RW,
1321             &SCTP_BASE_SYSCTL(sctp_sendspace), 0, sctp_sysctl_handle_int,
1322             SCTPCTL_MAXDGRAM_DESC);
1323
1324         sysctl_add_oid(&sysctl_oid_top, "recvspace", CTLTYPE_INT|CTLFLAG_RW,
1325             &SCTP_BASE_SYSCTL(sctp_recvspace), 0, sctp_sysctl_handle_int,
1326             SCTPCTL_RECVSPACE_DESC);
1327
1328         sysctl_add_oid(&sysctl_oid_top, "auto_asconf", CTLTYPE_INT|CTLFLAG_RW,
1329             &SCTP_BASE_SYSCTL(sctp_auto_asconf), 0, sctp_sysctl_handle_int,
1330             SCTPCTL_AUTOASCONF_DESC);
1331
1332         sysctl_add_oid(&sysctl_oid_top, "ecn_enable", CTLTYPE_INT|CTLFLAG_RW,
1333             &SCTP_BASE_SYSCTL(sctp_ecn_enable), 0, sctp_sysctl_handle_int,
1334             SCTPCTL_ECN_ENABLE_DESC);
1335
1336         sysctl_add_oid(&sysctl_oid_top, "pr_enable", CTLTYPE_INT|CTLFLAG_RW,
1337             &SCTP_BASE_SYSCTL(sctp_pr_enable), 0, sctp_sysctl_handle_int,
1338             SCTPCTL_PR_ENABLE_DESC);
1339
1340         sysctl_add_oid(&sysctl_oid_top, "auth_enable", CTLTYPE_INT|CTLFLAG_RW,
1341             &SCTP_BASE_SYSCTL(sctp_auth_enable), 0, sctp_sysctl_handle_auth,
1342             SCTPCTL_AUTH_ENABLE_DESC);
1343
1344         sysctl_add_oid(&sysctl_oid_top, "asconf_enable", CTLTYPE_INT|CTLFLAG_RW,
1345             &SCTP_BASE_SYSCTL(sctp_asconf_enable), 0, sctp_sysctl_handle_asconf,
1346             SCTPCTL_ASCONF_ENABLE_DESC);
1347
1348         sysctl_add_oid(&sysctl_oid_top, "reconfig_enable", CTLTYPE_INT|CTLFLAG_RW,
1349             &SCTP_BASE_SYSCTL(sctp_reconfig_enable), 0, sctp_sysctl_handle_int,
1350             SCTPCTL_RECONFIG_ENABLE_DESC);
1351
1352         sysctl_add_oid(&sysctl_oid_top, "nrsack_enable", CTLTYPE_INT|CTLFLAG_RW,
1353             &SCTP_BASE_SYSCTL(sctp_nrsack_enable), 0, sctp_sysctl_handle_int,
1354             SCTPCTL_NRSACK_ENABLE_DESC);
1355
1356         sysctl_add_oid(&sysctl_oid_top, "pktdrop_enable", CTLTYPE_INT|CTLFLAG_RW,
1357             &SCTP_BASE_SYSCTL(sctp_pktdrop_enable), 0, sctp_sysctl_handle_int,
1358             SCTPCTL_PKTDROP_ENABLE_DESC);
1359
1360         sysctl_add_oid(&sysctl_oid_top, "loopback_nocsum", CTLTYPE_INT|CTLFLAG_RW,
1361             &SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback), 0, sctp_sysctl_handle_int,
1362             SCTPCTL_LOOPBACK_NOCSUM_DESC);
1363
1364         sysctl_add_oid(&sysctl_oid_top, "peer_chkoh", CTLTYPE_INT|CTLFLAG_RW,
1365             &SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), 0, sctp_sysctl_handle_int,
1366             SCTPCTL_PEER_CHKOH_DESC);
1367
1368         sysctl_add_oid(&sysctl_oid_top, "maxburst", CTLTYPE_INT|CTLFLAG_RW,
1369             &SCTP_BASE_SYSCTL(sctp_max_burst_default), 0, sctp_sysctl_handle_int,
1370             SCTPCTL_MAXBURST_DESC);
1371
1372         sysctl_add_oid(&sysctl_oid_top, "fr_maxburst", CTLTYPE_INT|CTLFLAG_RW,
1373             &SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), 0, sctp_sysctl_handle_int,
1374             SCTPCTL_FRMAXBURST_DESC);
1375
1376         sysctl_add_oid(&sysctl_oid_top, "maxchunks", CTLTYPE_INT|CTLFLAG_RW,
1377             &SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), 0, sctp_sysctl_handle_int,
1378             SCTPCTL_MAXCHUNKS_DESC);
1379
1380         sysctl_add_oid(&sysctl_oid_top, "tcbhashsize", CTLTYPE_INT|CTLFLAG_RW,
1381             &SCTP_BASE_SYSCTL(sctp_hashtblsize), 0, sctp_sysctl_handle_int,
1382             SCTPCTL_TCBHASHSIZE_DESC);
1383
1384         sysctl_add_oid(&sysctl_oid_top, "pcbhashsize", CTLTYPE_INT|CTLFLAG_RW,
1385             &SCTP_BASE_SYSCTL(sctp_pcbtblsize), 0, sctp_sysctl_handle_int,
1386             SCTPCTL_PCBHASHSIZE_DESC);
1387
1388         sysctl_add_oid(&sysctl_oid_top, "min_split_point", CTLTYPE_INT|CTLFLAG_RW,
1389             &SCTP_BASE_SYSCTL(sctp_min_split_point), 0, sctp_sysctl_handle_int,
1390             SCTPCTL_MIN_SPLIT_POINT_DESC);
1391
1392         sysctl_add_oid(&sysctl_oid_top, "chunkscale", CTLTYPE_INT|CTLFLAG_RW,
1393             &SCTP_BASE_SYSCTL(sctp_chunkscale), 0, sctp_sysctl_handle_int,
1394             SCTPCTL_CHUNKSCALE_DESC);
1395
1396         sysctl_add_oid(&sysctl_oid_top, "delayed_sack_time", CTLTYPE_INT|CTLFLAG_RW,
1397             &SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), 0, sctp_sysctl_handle_int,
1398             SCTPCTL_DELAYED_SACK_TIME_DESC);
1399
1400         sysctl_add_oid(&sysctl_oid_top, "sack_freq", CTLTYPE_INT|CTLFLAG_RW,
1401             &SCTP_BASE_SYSCTL(sctp_sack_freq_default), 0, sctp_sysctl_handle_int,
1402             SCTPCTL_SACK_FREQ_DESC);
1403
1404         sysctl_add_oid(&sysctl_oid_top, "sys_resource", CTLTYPE_INT|CTLFLAG_RW,
1405             &SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), 0, sctp_sysctl_handle_int,
1406             SCTPCTL_SYS_RESOURCE_DESC);
1407
1408         sysctl_add_oid(&sysctl_oid_top, "asoc_resource", CTLTYPE_INT|CTLFLAG_RW,
1409             &SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), 0, sctp_sysctl_handle_int,
1410             SCTPCTL_ASOC_RESOURCE_DESC);
1411
1412         sysctl_add_oid(&sysctl_oid_top, "heartbeat_interval", CTLTYPE_INT|CTLFLAG_RW,
1413             &SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), 0, sctp_sysctl_handle_int,
1414             SCTPCTL_HEARTBEAT_INTERVAL_DESC);
1415
1416         sysctl_add_oid(&sysctl_oid_top, "pmtu_raise_time", CTLTYPE_INT|CTLFLAG_RW,
1417             &SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), 0, sctp_sysctl_handle_int,
1418             SCTPCTL_PMTU_RAISE_TIME_DESC);
1419
1420         sysctl_add_oid(&sysctl_oid_top, "shutdown_guard_time", CTLTYPE_INT|CTLFLAG_RW,
1421             &SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), 0, sctp_sysctl_handle_int,
1422             SCTPCTL_SHUTDOWN_GUARD_TIME_DESC);
1423
1424         sysctl_add_oid(&sysctl_oid_top, "secret_lifetime", CTLTYPE_INT|CTLFLAG_RW,
1425             &SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), 0, sctp_sysctl_handle_int,
1426             SCTPCTL_SECRET_LIFETIME_DESC);
1427
1428         sysctl_add_oid(&sysctl_oid_top, "rto_max", CTLTYPE_INT|CTLFLAG_RW,
1429             &SCTP_BASE_SYSCTL(sctp_rto_max_default), 0, sctp_sysctl_handle_int,
1430             SCTPCTL_RTO_MAX_DESC);
1431
1432         sysctl_add_oid(&sysctl_oid_top, "rto_min", CTLTYPE_INT|CTLFLAG_RW,
1433             &SCTP_BASE_SYSCTL(sctp_rto_min_default), 0, sctp_sysctl_handle_int,
1434             SCTPCTL_RTO_MIN_DESC);
1435
1436         sysctl_add_oid(&sysctl_oid_top, "rto_initial", CTLTYPE_INT|CTLFLAG_RW,
1437             &SCTP_BASE_SYSCTL(sctp_rto_initial_default), 0, sctp_sysctl_handle_int,
1438             SCTPCTL_RTO_INITIAL_DESC);
1439
1440         sysctl_add_oid(&sysctl_oid_top, "init_rto_max", CTLTYPE_INT|CTLFLAG_RW,
1441             &SCTP_BASE_SYSCTL(sctp_init_rto_max_default), 0, sctp_sysctl_handle_int,
1442             SCTPCTL_INIT_RTO_MAX_DESC);
1443
1444         sysctl_add_oid(&sysctl_oid_top, "valid_cookie_life", CTLTYPE_INT|CTLFLAG_RW,
1445             &SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), 0, sctp_sysctl_handle_int,
1446             SCTPCTL_VALID_COOKIE_LIFE_DESC);
1447
1448         sysctl_add_oid(&sysctl_oid_top, "init_rtx_max", CTLTYPE_INT|CTLFLAG_RW,
1449             &SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), 0, sctp_sysctl_handle_int,
1450             SCTPCTL_INIT_RTX_MAX_DESC);
1451
1452         sysctl_add_oid(&sysctl_oid_top, "assoc_rtx_max", CTLTYPE_INT|CTLFLAG_RW,
1453             &SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), 0, sctp_sysctl_handle_int,
1454             SCTPCTL_ASSOC_RTX_MAX_DESC);
1455
1456         sysctl_add_oid(&sysctl_oid_top, "path_rtx_max", CTLTYPE_INT|CTLFLAG_RW,
1457             &SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), 0, sctp_sysctl_handle_int,
1458             SCTPCTL_PATH_RTX_MAX_DESC);
1459
1460         sysctl_add_oid(&sysctl_oid_top, "path_pf_threshold", CTLTYPE_INT|CTLFLAG_RW,
1461             &SCTP_BASE_SYSCTL(sctp_path_pf_threshold), 0, sctp_sysctl_handle_int,
1462             SCTPCTL_PATH_PF_THRESHOLD_DESC);
1463
1464         sysctl_add_oid(&sysctl_oid_top, "add_more_on_output", CTLTYPE_INT|CTLFLAG_RW,
1465             &SCTP_BASE_SYSCTL(sctp_add_more_threshold), 0, sctp_sysctl_handle_int,
1466             SCTPCTL_ADD_MORE_ON_OUTPUT_DESC);
1467
1468         sysctl_add_oid(&sysctl_oid_top, "incoming_streams", CTLTYPE_INT|CTLFLAG_RW,
1469             &SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default), 0, sctp_sysctl_handle_int,
1470             SCTPCTL_INCOMING_STREAMS_DESC);
1471
1472         sysctl_add_oid(&sysctl_oid_top, "outgoing_streams", CTLTYPE_INT|CTLFLAG_RW,
1473             &SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), 0, sctp_sysctl_handle_int,
1474             SCTPCTL_OUTGOING_STREAMS_DESC);
1475
1476         sysctl_add_oid(&sysctl_oid_top, "cmt_on_off", CTLTYPE_INT|CTLFLAG_RW,
1477             &SCTP_BASE_SYSCTL(sctp_cmt_on_off), 0, sctp_sysctl_handle_int,
1478             SCTPCTL_CMT_ON_OFF_DESC);
1479
1480         sysctl_add_oid(&sysctl_oid_top, "cmt_use_dac", CTLTYPE_INT|CTLFLAG_RW,
1481             &SCTP_BASE_SYSCTL(sctp_cmt_use_dac), 0, sctp_sysctl_handle_int,
1482             SCTPCTL_CMT_USE_DAC_DESC);
1483
1484         sysctl_add_oid(&sysctl_oid_top, "cwnd_maxburst", CTLTYPE_INT|CTLFLAG_RW,
1485             &SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), 0, sctp_sysctl_handle_int,
1486             SCTPCTL_CWND_MAXBURST_DESC);
1487
1488         sysctl_add_oid(&sysctl_oid_top, "nat_friendly", CTLTYPE_INT|CTLFLAG_RW,
1489             &SCTP_BASE_SYSCTL(sctp_nat_friendly), 0, sctp_sysctl_handle_int,
1490             SCTPCTL_NAT_FRIENDLY_DESC);
1491
1492         sysctl_add_oid(&sysctl_oid_top, "abc_l_var", CTLTYPE_INT|CTLFLAG_RW,
1493             &SCTP_BASE_SYSCTL(sctp_L2_abc_variable), 0, sctp_sysctl_handle_int,
1494             SCTPCTL_ABC_L_VAR_DESC);
1495
1496         sysctl_add_oid(&sysctl_oid_top, "max_chained_mbufs", CTLTYPE_INT|CTLFLAG_RW,
1497             &SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), 0, sctp_sysctl_handle_int,
1498             SCTPCTL_MAX_CHAINED_MBUFS_DESC);
1499
1500         sysctl_add_oid(&sysctl_oid_top, "do_sctp_drain", CTLTYPE_INT|CTLFLAG_RW,
1501             &SCTP_BASE_SYSCTL(sctp_do_drain), 0, sctp_sysctl_handle_int,
1502             SCTPCTL_DO_SCTP_DRAIN_DESC);
1503
1504         sysctl_add_oid(&sysctl_oid_top, "hb_max_burst", CTLTYPE_INT|CTLFLAG_RW,
1505             &SCTP_BASE_SYSCTL(sctp_hb_maxburst), 0, sctp_sysctl_handle_int,
1506             SCTPCTL_HB_MAX_BURST_DESC);
1507
1508         sysctl_add_oid(&sysctl_oid_top, "abort_at_limit", CTLTYPE_INT|CTLFLAG_RW,
1509             &SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), 0, sctp_sysctl_handle_int,
1510             SCTPCTL_ABORT_AT_LIMIT_DESC);
1511
1512         sysctl_add_oid(&sysctl_oid_top, "min_residual", CTLTYPE_INT|CTLFLAG_RW,
1513             &SCTP_BASE_SYSCTL(sctp_min_residual), 0, sctp_sysctl_handle_int,
1514             SCTPCTL_MIN_RESIDUAL_DESC);
1515
1516         sysctl_add_oid(&sysctl_oid_top, "max_retran_chunk", CTLTYPE_INT|CTLFLAG_RW,
1517             &SCTP_BASE_SYSCTL(sctp_max_retran_chunk), 0, sctp_sysctl_handle_int,
1518             SCTPCTL_MAX_RETRAN_CHUNK_DESC);
1519
1520         sysctl_add_oid(&sysctl_oid_top, "log_level", CTLTYPE_INT|CTLFLAG_RW,
1521             &SCTP_BASE_SYSCTL(sctp_logging_level), 0, sctp_sysctl_handle_int,
1522             SCTPCTL_LOGGING_LEVEL_DESC);
1523
1524         sysctl_add_oid(&sysctl_oid_top, "default_cc_module", CTLTYPE_INT|CTLFLAG_RW,
1525             &SCTP_BASE_SYSCTL(sctp_default_cc_module), 0, sctp_sysctl_handle_int,
1526             SCTPCTL_DEFAULT_CC_MODULE_DESC);
1527
1528         sysctl_add_oid(&sysctl_oid_top, "default_ss_module", CTLTYPE_INT|CTLFLAG_RW,
1529             &SCTP_BASE_SYSCTL(sctp_default_ss_module), 0, sctp_sysctl_handle_int,
1530             SCTPCTL_DEFAULT_SS_MODULE_DESC);
1531
1532         sysctl_add_oid(&sysctl_oid_top, "default_frag_interleave", CTLTYPE_INT|CTLFLAG_RW,
1533             &SCTP_BASE_SYSCTL(sctp_default_frag_interleave), 0, sctp_sysctl_handle_int,
1534             SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC);
1535
1536         sysctl_add_oid(&sysctl_oid_top, "mobility_base", CTLTYPE_INT|CTLFLAG_RW,
1537             &SCTP_BASE_SYSCTL(sctp_mobility_base), 0, sctp_sysctl_handle_int,
1538             SCTPCTL_MOBILITY_BASE_DESC);
1539
1540         sysctl_add_oid(&sysctl_oid_top, "mobility_fasthandoff", CTLTYPE_INT|CTLFLAG_RW,
1541             &SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), 0, sctp_sysctl_handle_int,
1542             SCTPCTL_MOBILITY_FASTHANDOFF_DESC);
1543
1544 #if defined(SCTP_LOCAL_TRACE_BUF)
1545         sysctl_add_oid(&sysctl_oid_top, "sctp_log", CTLTYPE_STRUCT|CTLFLAG_RD,
1546             SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log), NULL,
1547             "SCTP logging (struct sctp_log)");
1548
1549         sysctl_add_oid(&sysctl_oid_top, "clear_trace", CTLTYPE_INT|CTLFLAG_WR,
1550             NULL, 0, sctp_sysctl_handle_trace_log_clear,
1551             "Clear SCTP Logging buffer");
1552 #endif
1553
1554         sysctl_add_oid(&sysctl_oid_top, "udp_tunneling_port", CTLTYPE_INT|CTLFLAG_RW,
1555             &SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), 0, sctp_sysctl_handle_udp_tunneling,
1556             SCTPCTL_UDP_TUNNELING_PORT_DESC);
1557
1558         sysctl_add_oid(&sysctl_oid_top, "enable_sack_immediately", CTLTYPE_INT|CTLFLAG_RW,
1559             &SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), 0, sctp_sysctl_handle_int,
1560             SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC);
1561
1562         sysctl_add_oid(&sysctl_oid_top, "nat_friendly_init", CTLTYPE_INT|CTLFLAG_RW,
1563             &SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), 0, sctp_sysctl_handle_int,
1564             SCTPCTL_NAT_FRIENDLY_DESC);
1565
1566         sysctl_add_oid(&sysctl_oid_top, "vtag_time_wait", CTLTYPE_INT|CTLFLAG_RW,
1567             &SCTP_BASE_SYSCTL(sctp_vtag_time_wait), 0, sctp_sysctl_handle_int,
1568             SCTPCTL_TIME_WAIT_DESC);
1569
1570         sysctl_add_oid(&sysctl_oid_top, "buffer_splitting", CTLTYPE_INT|CTLFLAG_RW,
1571             &SCTP_BASE_SYSCTL(sctp_buffer_splitting), 0, sctp_sysctl_handle_int,
1572             SCTPCTL_BUFFER_SPLITTING_DESC);
1573
1574         sysctl_add_oid(&sysctl_oid_top, "initial_cwnd", CTLTYPE_INT|CTLFLAG_RW,
1575             &SCTP_BASE_SYSCTL(sctp_initial_cwnd), 0, sctp_sysctl_handle_int,
1576             SCTPCTL_INITIAL_CWND_DESC);
1577
1578         sysctl_add_oid(&sysctl_oid_top, "rttvar_bw", CTLTYPE_INT|CTLFLAG_RW,
1579             &SCTP_BASE_SYSCTL(sctp_rttvar_bw), 0, sctp_sysctl_handle_int,
1580             SCTPCTL_RTTVAR_BW_DESC);
1581
1582         sysctl_add_oid(&sysctl_oid_top, "rttvar_rtt", CTLTYPE_INT|CTLFLAG_RW,
1583             &SCTP_BASE_SYSCTL(sctp_rttvar_rtt), 0, sctp_sysctl_handle_int,
1584             SCTPCTL_RTTVAR_RTT_DESC);
1585
1586         sysctl_add_oid(&sysctl_oid_top, "rttvar_eqret", CTLTYPE_INT|CTLFLAG_RW,
1587             &SCTP_BASE_SYSCTL(sctp_rttvar_eqret), 0, sctp_sysctl_handle_int,
1588             SCTPCTL_RTTVAR_EQRET_DESC);
1589
1590         sysctl_add_oid(&sysctl_oid_top, "rttvar_steady_step", CTLTYPE_INT|CTLFLAG_RW,
1591             &SCTP_BASE_SYSCTL(sctp_steady_step), 0, sctp_sysctl_handle_int,
1592             SCTPCTL_RTTVAR_STEADYS_DESC);
1593
1594         sysctl_add_oid(&sysctl_oid_top, "use_dcccecn", CTLTYPE_INT|CTLFLAG_RW,
1595             &SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), 0, sctp_sysctl_handle_int,
1596             SCTPCTL_RTTVAR_DCCCECN_DESC);
1597
1598         sysctl_add_oid(&sysctl_oid_top, "blackhole", CTLTYPE_INT|CTLFLAG_RW,
1599             &SCTP_BASE_SYSCTL(sctp_blackhole), 0, sctp_sysctl_handle_int,
1600             SCTPCTL_BLACKHOLE_DESC);
1601
1602         sysctl_add_oid(&sysctl_oid_top, "sendall_limit", CTLTYPE_INT|CTLFLAG_RW,
1603             &SCTP_BASE_SYSCTL(sctp_sendall_limit), 0, sctp_sysctl_handle_int,
1604             SCTPCTL_SENDALL_LIMIT_DESC);
1605
1606         sysctl_add_oid(&sysctl_oid_top, "diag_info_code", CTLTYPE_INT|CTLFLAG_RW,
1607             &SCTP_BASE_SYSCTL(sctp_diag_info_code), 0, sctp_sysctl_handle_int,
1608             SCTPCTL_DIAG_INFO_CODE_DESC);
1609
1610 #ifdef SCTP_DEBUG
1611         sysctl_add_oid(&sysctl_oid_top, "debug", CTLTYPE_INT|CTLFLAG_RW,
1612             &SCTP_BASE_SYSCTL(sctp_debug_on), 0, sctp_sysctl_handle_int,
1613             SCTPCTL_DEBUG_DESC);
1614 #endif
1615
1616         sysctl_add_oid(&sysctl_oid_top, "stats", CTLTYPE_STRUCT|CTLFLAG_RW,
1617             &SCTP_BASE_STATS, sizeof(SCTP_BASE_STATS), NULL,
1618             "SCTP statistics (struct sctp_stat)");
1619
1620         sysctl_add_oid(&sysctl_oid_top, "assoclist", CTLTYPE_STRUCT|CTLFLAG_RD,
1621             NULL, 0, sctp_assoclist,
1622             "List of active SCTP associations");
1623 }
1624 #endif
1625 #endif