1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved. 5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * a) Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 14 * b) Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the distribution. 17 * 18 * c) Neither the name of Cisco Systems, Inc. nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#include <netinet/sctp_os.h> 36#include <netinet/sctp.h> 37#include <netinet/sctp_constants.h> 38#include <netinet/sctp_sysctl.h> 39#include <netinet/sctp_pcb.h> 40#include <netinet/sctputil.h> 41#include <netinet/sctp_output.h> 42#include <sys/smp.h> 43#include <sys/sysctl.h> 44 45FEATURE(sctp, "Stream Control Transmission Protocol"); 46 47/* 48 * sysctl tunable variables 49 */ 50 51void 52sctp_init_sysctls(void) 53{ 54 SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT; 55 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT; 56 SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT; 57 SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT; 58 SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT; 59 SCTP_BASE_SYSCTL(sctp_pr_enable) = SCTPCTL_PR_ENABLE_DEFAULT; 60 SCTP_BASE_SYSCTL(sctp_auth_enable) = SCTPCTL_AUTH_ENABLE_DEFAULT; 61 SCTP_BASE_SYSCTL(sctp_asconf_enable) = SCTPCTL_ASCONF_ENABLE_DEFAULT; 62 SCTP_BASE_SYSCTL(sctp_reconfig_enable) = SCTPCTL_RECONFIG_ENABLE_DEFAULT; 63 SCTP_BASE_SYSCTL(sctp_nrsack_enable) = SCTPCTL_NRSACK_ENABLE_DEFAULT; 64 SCTP_BASE_SYSCTL(sctp_pktdrop_enable) = SCTPCTL_PKTDROP_ENABLE_DEFAULT; 65 SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT; 66 SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT; 67 SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT; 68 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT; 69 SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT; 70 SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT; 71 SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT; 72 SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT; 73 SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT; 74 SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT; 75 SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT; 76 SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT; 77 SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT; 78 SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT; 79 SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT; 80 SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT; 81 SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT; 82 SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT; 83 SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT; 84 SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT; 85 SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT; 86 SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT; 87 SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT; 88 SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT; 89 SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT; 90 SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT; 91 SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT; 92 SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT; 93 SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT; 94 SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT; 95 SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT; 96 SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT; 97 SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT; 98 SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT; 99 SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT; 100 SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT; 101 SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT; 102 SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT; 103 SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT; 104 SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT; 105 SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT; 106 SCTP_BASE_SYSCTL(sctp_default_ss_module) = SCTPCTL_DEFAULT_SS_MODULE_DEFAULT; 107 SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT; 108 SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT; 109 SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT; 110 SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT; 111 SCTP_BASE_SYSCTL(sctp_buffer_splitting) = SCTPCTL_BUFFER_SPLITTING_DEFAULT; 112 SCTP_BASE_SYSCTL(sctp_initial_cwnd) = SCTPCTL_INITIAL_CWND_DEFAULT; 113 SCTP_BASE_SYSCTL(sctp_rttvar_bw) = SCTPCTL_RTTVAR_BW_DEFAULT; 114 SCTP_BASE_SYSCTL(sctp_rttvar_rtt) = SCTPCTL_RTTVAR_RTT_DEFAULT; 115 SCTP_BASE_SYSCTL(sctp_rttvar_eqret) = SCTPCTL_RTTVAR_EQRET_DEFAULT; 116 SCTP_BASE_SYSCTL(sctp_steady_step) = SCTPCTL_RTTVAR_STEADYS_DEFAULT; 117 SCTP_BASE_SYSCTL(sctp_use_dccc_ecn) = SCTPCTL_RTTVAR_DCCCECN_DEFAULT; 118 SCTP_BASE_SYSCTL(sctp_blackhole) = SCTPCTL_BLACKHOLE_DEFAULT; 119 SCTP_BASE_SYSCTL(sctp_sendall_limit) = SCTPCTL_SENDALL_LIMIT_DEFAULT; 120 SCTP_BASE_SYSCTL(sctp_diag_info_code) = SCTPCTL_DIAG_INFO_CODE_DEFAULT; 121 SCTP_BASE_SYSCTL(sctp_ootb_with_zero_cksum) = SCTPCTL_OOTB_WITH_ZERO_CKSUM_DEFAULT; 122#if defined(SCTP_LOCAL_TRACE_BUF) 123 memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log)); 124#endif 125 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT; 126 SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT; 127 SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT; 128#if defined(SCTP_DEBUG) 129 SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT; 130#endif 131} 132 133/* It returns an upper limit. No filtering is done here */ 134static unsigned int 135sctp_sysctl_number_of_addresses(struct sctp_inpcb *inp) 136{ 137 unsigned int cnt; 138 struct sctp_vrf *vrf; 139 struct sctp_ifn *sctp_ifn; 140 struct sctp_ifa *sctp_ifa; 141 struct sctp_laddr *laddr; 142 143 cnt = 0; 144 /* neither Mac OS X nor FreeBSD support multiple routing functions */ 145 if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) { 146 return (0); 147 } 148 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 149 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 150 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 151 switch (sctp_ifa->address.sa.sa_family) { 152#ifdef INET 153 case AF_INET: 154#endif 155#ifdef INET6 156 case AF_INET6: 157#endif 158 cnt++; 159 break; 160 default: 161 break; 162 } 163 } 164 } 165 } else { 166 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 167 switch (laddr->ifa->address.sa.sa_family) { 168#ifdef INET 169 case AF_INET: 170#endif 171#ifdef INET6 172 case AF_INET6: 173#endif 174 cnt++; 175 break; 176 default: 177 break; 178 } 179 } 180 } 181 return (cnt); 182} 183 184static int 185sctp_sysctl_copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req) 186{ 187 struct sctp_ifn *sctp_ifn; 188 struct sctp_ifa *sctp_ifa; 189 int loopback_scope; 190#ifdef INET 191 int ipv4_local_scope; 192 int ipv4_addr_legal; 193#endif 194#ifdef INET6 195 int local_scope, site_scope; 196 int ipv6_addr_legal; 197#endif 198 struct sctp_vrf *vrf; 199 struct xsctp_laddr xladdr; 200 struct sctp_laddr *laddr; 201 int error; 202 203 /* Turn on all the appropriate scope */ 204 if (stcb != NULL) { 205 /* use association specific values */ 206 loopback_scope = stcb->asoc.scope.loopback_scope; 207#ifdef INET 208 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope; 209 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal; 210#endif 211#ifdef INET6 212 local_scope = stcb->asoc.scope.local_scope; 213 site_scope = stcb->asoc.scope.site_scope; 214 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal; 215#endif 216 } else { 217 /* Use generic values for endpoints. */ 218 loopback_scope = 1; 219#ifdef INET 220 ipv4_local_scope = 1; 221#endif 222#ifdef INET6 223 local_scope = 1; 224 site_scope = 1; 225#endif 226 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 227#ifdef INET6 228 ipv6_addr_legal = 1; 229#endif 230#ifdef INET 231 if (SCTP_IPV6_V6ONLY(inp)) { 232 ipv4_addr_legal = 0; 233 } else { 234 ipv4_addr_legal = 1; 235 } 236#endif 237 } else { 238#ifdef INET6 239 ipv6_addr_legal = 0; 240#endif 241#ifdef INET 242 ipv4_addr_legal = 1; 243#endif 244 } 245 } 246 247 /* Neither Mac OS X nor FreeBSD support multiple routing functions. */ 248 if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) { 249 SCTP_INP_RUNLOCK(inp); 250 SCTP_INP_INFO_RUNLOCK(); 251 return (ENOENT); 252 } 253 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 254 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 255 if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 256 /* Skip loopback if loopback_scope not set. */ 257 continue; 258 } 259 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 260 if (stcb != NULL) { 261 /* 262 * Ignore if blacklisted at 263 * association level. 264 */ 265 if (sctp_is_addr_restricted(stcb, sctp_ifa)) { 266 continue; 267 } 268 } 269 switch (sctp_ifa->address.sa.sa_family) { 270#ifdef INET 271 case AF_INET: 272 if (ipv4_addr_legal) { 273 struct sockaddr_in *sin; 274 275 sin = &sctp_ifa->address.sin; 276 if (sin->sin_addr.s_addr == 0) { 277 continue; 278 } 279 if (prison_check_ip4(inp->ip_inp.inp.inp_cred, 280 &sin->sin_addr) != 0) { 281 continue; 282 } 283 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 284 continue; 285 } 286 } else { 287 continue; 288 } 289 break; 290#endif 291#ifdef INET6 292 case AF_INET6: 293 if (ipv6_addr_legal) { 294 struct sockaddr_in6 *sin6; 295 296 sin6 = &sctp_ifa->address.sin6; 297 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 298 continue; 299 } 300 if (prison_check_ip6(inp->ip_inp.inp.inp_cred, 301 &sin6->sin6_addr) != 0) { 302 continue; 303 } 304 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 305 if (local_scope == 0) { 306 continue; 307 } 308 } 309 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 310 continue; 311 } 312 } else { 313 continue; 314 } 315 break; 316#endif 317 default: 318 continue; 319 } 320 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr)); 321 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore)); 322 SCTP_INP_RUNLOCK(inp); 323 SCTP_INP_INFO_RUNLOCK(); 324 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr)); 325 if (error != 0) { 326 return (error); 327 } else { 328 SCTP_INP_INFO_RLOCK(); 329 SCTP_INP_RLOCK(inp); 330 } 331 } 332 } 333 } else { 334 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 335 /* ignore if blacklisted at association level */ 336 if (stcb != NULL && sctp_is_addr_restricted(stcb, laddr->ifa)) 337 continue; 338 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr)); 339 memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore)); 340 xladdr.start_time.tv_sec = (uint32_t)laddr->start_time.tv_sec; 341 xladdr.start_time.tv_usec = (uint32_t)laddr->start_time.tv_usec; 342 SCTP_INP_RUNLOCK(inp); 343 SCTP_INP_INFO_RUNLOCK(); 344 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr)); 345 if (error != 0) { 346 return (error); 347 } else { 348 SCTP_INP_INFO_RLOCK(); 349 SCTP_INP_RLOCK(inp); 350 } 351 } 352 } 353 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr)); 354 xladdr.last = 1; 355 SCTP_INP_RUNLOCK(inp); 356 SCTP_INP_INFO_RUNLOCK(); 357 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr)); 358 359 if (error != 0) { 360 return (error); 361 } else { 362 SCTP_INP_INFO_RLOCK(); 363 SCTP_INP_RLOCK(inp); 364 return (0); 365 } 366} 367 368/* 369 * sysctl functions 370 */ 371static int 372sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS) 373{ 374 unsigned int number_of_endpoints; 375 unsigned int number_of_local_addresses; 376 unsigned int number_of_associations; 377 unsigned int number_of_remote_addresses; 378 unsigned int n; 379 int error; 380 struct sctp_inpcb *inp; 381 struct sctp_tcb *stcb; 382 struct sctp_nets *net; 383 struct xsctp_inpcb xinpcb; 384 struct xsctp_tcb xstcb; 385 struct xsctp_raddr xraddr; 386 struct socket *so; 387 388 number_of_endpoints = 0; 389 number_of_local_addresses = 0; 390 number_of_associations = 0; 391 number_of_remote_addresses = 0; 392 393 SCTP_INP_INFO_RLOCK(); 394 if (req->oldptr == NULL) { 395 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) { 396 SCTP_INP_RLOCK(inp); 397 number_of_endpoints++; 398 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp); 399 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 400 number_of_associations++; 401 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp); 402 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 403 number_of_remote_addresses++; 404 } 405 } 406 SCTP_INP_RUNLOCK(inp); 407 } 408 SCTP_INP_INFO_RUNLOCK(); 409 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) + 410 (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) + 411 (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) + 412 (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr); 413 414 /* request some more memory than needed */ 415 req->oldidx = (n + n / 8); 416 return (0); 417 } 418 if (req->newptr != NULL) { 419 SCTP_INP_INFO_RUNLOCK(); 420 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM); 421 return (EPERM); 422 } 423 memset(&xinpcb, 0, sizeof(xinpcb)); 424 memset(&xstcb, 0, sizeof(xstcb)); 425 memset(&xraddr, 0, sizeof(xraddr)); 426 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) { 427 SCTP_INP_RLOCK(inp); 428 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) { 429 /* if its allgone it is being freed - skip it */ 430 goto skip; 431 } 432 xinpcb.last = 0; 433 xinpcb.local_port = ntohs(inp->sctp_lport); 434 xinpcb.flags = inp->sctp_flags; 435 xinpcb.features = inp->sctp_features; 436 xinpcb.total_sends = inp->total_sends; 437 xinpcb.total_recvs = inp->total_recvs; 438 xinpcb.total_nospaces = inp->total_nospaces; 439 xinpcb.fragmentation_point = inp->sctp_frag_point; 440 xinpcb.socket = (uintptr_t)inp->sctp_socket; 441 so = inp->sctp_socket; 442 if ((so == NULL) || 443 (!SCTP_IS_LISTENING(inp)) || 444 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 445 xinpcb.qlen = 0; 446 xinpcb.maxqlen = 0; 447 } else { 448 xinpcb.qlen = so->sol_qlen; 449 xinpcb.qlen_old = so->sol_qlen > USHRT_MAX ? 450 USHRT_MAX : (uint16_t)so->sol_qlen; 451 xinpcb.maxqlen = so->sol_qlimit; 452 xinpcb.maxqlen_old = so->sol_qlimit > USHRT_MAX ? 453 USHRT_MAX : (uint16_t)so->sol_qlimit; 454 } 455 SCTP_INP_INCR_REF(inp); 456 SCTP_INP_RUNLOCK(inp); 457 SCTP_INP_INFO_RUNLOCK(); 458 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb)); 459 if (error) { 460 SCTP_INP_DECR_REF(inp); 461 return (error); 462 } 463 SCTP_INP_INFO_RLOCK(); 464 SCTP_INP_RLOCK(inp); 465 error = sctp_sysctl_copy_out_local_addresses(inp, NULL, req); 466 if (error) { 467 SCTP_INP_DECR_REF(inp); 468 return (error); 469 } 470 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 471 SCTP_TCB_LOCK(stcb); 472 atomic_add_int(&stcb->asoc.refcnt, 1); 473 SCTP_TCB_UNLOCK(stcb); 474 xstcb.last = 0; 475 xstcb.local_port = ntohs(inp->sctp_lport); 476 xstcb.remote_port = ntohs(stcb->rport); 477 if (stcb->asoc.primary_destination != NULL) 478 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr; 479 xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay; 480 xstcb.state = (uint32_t)sctp_map_assoc_state(stcb->asoc.state); 481 xstcb.assoc_id = sctp_get_associd(stcb); 482 xstcb.peers_rwnd = stcb->asoc.peers_rwnd; 483 xstcb.in_streams = stcb->asoc.streamincnt; 484 xstcb.out_streams = stcb->asoc.streamoutcnt; 485 xstcb.max_nr_retrans = stcb->asoc.overall_error_count; 486 xstcb.primary_process = 0; /* not really supported 487 * yet */ 488 xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie; 489 xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack; 490 xstcb.retransmitted_tsns = stcb->asoc.marked_retrans; 491 xstcb.start_time.tv_sec = (uint32_t)stcb->asoc.start_time.tv_sec; 492 xstcb.start_time.tv_usec = (uint32_t)stcb->asoc.start_time.tv_usec; 493 xstcb.discontinuity_time.tv_sec = (uint32_t)stcb->asoc.discontinuity_time.tv_sec; 494 xstcb.discontinuity_time.tv_usec = (uint32_t)stcb->asoc.discontinuity_time.tv_usec; 495 xstcb.total_sends = stcb->total_sends; 496 xstcb.total_recvs = stcb->total_recvs; 497 xstcb.local_tag = stcb->asoc.my_vtag; 498 xstcb.remote_tag = stcb->asoc.peer_vtag; 499 xstcb.initial_tsn = stcb->asoc.init_seq_number; 500 xstcb.highest_tsn = stcb->asoc.sending_seq - 1; 501 xstcb.cumulative_tsn = stcb->asoc.last_acked_seq; 502 xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn; 503 xstcb.mtu = stcb->asoc.smallest_mtu; 504 xstcb.refcnt = stcb->asoc.refcnt; 505 SCTP_INP_RUNLOCK(inp); 506 SCTP_INP_INFO_RUNLOCK(); 507 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb)); 508 if (error) { 509 SCTP_INP_DECR_REF(inp); 510 atomic_subtract_int(&stcb->asoc.refcnt, 1); 511 return (error); 512 } 513 SCTP_INP_INFO_RLOCK(); 514 SCTP_INP_RLOCK(inp); 515 error = sctp_sysctl_copy_out_local_addresses(inp, stcb, req); 516 if (error) { 517 SCTP_INP_DECR_REF(inp); 518 atomic_subtract_int(&stcb->asoc.refcnt, 1); 519 return (error); 520 } 521 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 522 xraddr.last = 0; 523 xraddr.address = net->ro._l_addr; 524 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE); 525 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0); 526 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0); 527 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF); 528 xraddr.rto = net->RTO; 529 xraddr.max_path_rtx = net->failure_threshold; 530 xraddr.rtx = net->marked_retrans; 531 xraddr.error_counter = net->error_count; 532 xraddr.cwnd = net->cwnd; 533 xraddr.flight_size = net->flight_size; 534 xraddr.mtu = net->mtu; 535 xraddr.rtt = net->rtt / 1000; 536 xraddr.heartbeat_interval = net->heart_beat_delay; 537 xraddr.ssthresh = net->ssthresh; 538 xraddr.encaps_port = net->port; 539 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 540 xraddr.state = SCTP_UNCONFIRMED; 541 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 542 xraddr.state = SCTP_ACTIVE; 543 } else { 544 xraddr.state = SCTP_INACTIVE; 545 } 546 xraddr.start_time.tv_sec = (uint32_t)net->start_time.tv_sec; 547 xraddr.start_time.tv_usec = (uint32_t)net->start_time.tv_usec; 548 SCTP_INP_RUNLOCK(inp); 549 SCTP_INP_INFO_RUNLOCK(); 550 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr)); 551 if (error) { 552 SCTP_INP_DECR_REF(inp); 553 atomic_subtract_int(&stcb->asoc.refcnt, 1); 554 return (error); 555 } 556 SCTP_INP_INFO_RLOCK(); 557 SCTP_INP_RLOCK(inp); 558 } 559 atomic_subtract_int(&stcb->asoc.refcnt, 1); 560 memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr)); 561 xraddr.last = 1; 562 SCTP_INP_RUNLOCK(inp); 563 SCTP_INP_INFO_RUNLOCK(); 564 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr)); 565 if (error) { 566 SCTP_INP_DECR_REF(inp); 567 return (error); 568 } 569 SCTP_INP_INFO_RLOCK(); 570 SCTP_INP_RLOCK(inp); 571 } 572 SCTP_INP_DECR_REF(inp); 573 SCTP_INP_RUNLOCK(inp); 574 SCTP_INP_INFO_RUNLOCK(); 575 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb)); 576 xstcb.last = 1; 577 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb)); 578 if (error) { 579 return (error); 580 } 581skip: 582 SCTP_INP_INFO_RLOCK(); 583 } 584 SCTP_INP_INFO_RUNLOCK(); 585 586 memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb)); 587 xinpcb.last = 1; 588 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb)); 589 return (error); 590} 591 592static int 593sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS) 594{ 595 int error; 596 uint32_t old, new; 597 598 SCTP_INP_INFO_RLOCK(); 599 old = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port); 600 SCTP_INP_INFO_RUNLOCK(); 601 new = old; 602 error = sysctl_handle_int(oidp, &new, 0, req); 603 if ((error == 0) && 604 (req->newptr != NULL)) { 605#if (SCTPCTL_UDP_TUNNELING_PORT_MIN == 0) 606 if (new > SCTPCTL_UDP_TUNNELING_PORT_MAX) { 607#else 608 if ((new < SCTPCTL_UDP_TUNNELING_PORT_MIN) || 609 (new > SCTPCTL_UDP_TUNNELING_PORT_MAX)) { 610#endif 611 error = EINVAL; 612 } else { 613 SCTP_INP_INFO_WLOCK(); 614 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = new; 615 if (old != 0) { 616 sctp_over_udp_stop(); 617 } 618 if (new != 0) { 619 error = sctp_over_udp_start(); 620 } 621 SCTP_INP_INFO_WUNLOCK(); 622 } 623 } 624 return (error); 625} 626 627static int 628sctp_sysctl_handle_auth(SYSCTL_HANDLER_ARGS) 629{ 630 int error; 631 uint32_t new; 632 633 new = SCTP_BASE_SYSCTL(sctp_auth_enable); 634 error = sysctl_handle_int(oidp, &new, 0, req); 635 if ((error == 0) && 636 (req->newptr != NULL)) { 637#if (SCTPCTL_AUTH_ENABLE_MIN == 0) 638 if ((new > SCTPCTL_AUTH_ENABLE_MAX) || 639 ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) { 640#else 641 if ((new < SCTPCTL_AUTH_ENABLE_MIN) || 642 (new > SCTPCTL_AUTH_ENABLE_MAX) || 643 ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) { 644#endif 645 error = EINVAL; 646 } else { 647 SCTP_BASE_SYSCTL(sctp_auth_enable) = new; 648 } 649 } 650 return (error); 651} 652 653static int 654sctp_sysctl_handle_asconf(SYSCTL_HANDLER_ARGS) 655{ 656 int error; 657 uint32_t new; 658 659 new = SCTP_BASE_SYSCTL(sctp_asconf_enable); 660 error = sysctl_handle_int(oidp, &new, 0, req); 661 if ((error == 0) && 662 (req->newptr != NULL)) { 663#if (SCTPCTL_ASCONF_ENABLE_MIN == 0) 664 if ((new > SCTPCTL_ASCONF_ENABLE_MAX) || 665 ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) { 666#else 667 if ((new < SCTPCTL_ASCONF_ENABLE_MIN) || 668 (new > SCTPCTL_ASCONF_ENABLE_MAX) || 669 ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) { 670#endif 671 error = EINVAL; 672 } else { 673 SCTP_BASE_SYSCTL(sctp_asconf_enable) = new; 674 } 675 } 676 return (error); 677} 678 679static int 680sctp_sysctl_handle_stats(SYSCTL_HANDLER_ARGS) 681{ 682 int error; 683#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) 684 struct sctpstat *sarry; 685 struct sctpstat sb; 686 int cpu; 687#endif 688 struct sctpstat sb_temp; 689 690 if ((req->newptr != NULL) && 691 (req->newlen != sizeof(struct sctpstat))) { 692 return (EINVAL); 693 } 694 memset(&sb_temp, 0, sizeof(struct sctpstat)); 695 696 if (req->newptr != NULL) { 697 error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat)); 698 if (error != 0) { 699 return (error); 700 } 701 } 702#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) 703 memset(&sb, 0, sizeof(sb)); 704 for (cpu = 0; cpu < mp_maxid; cpu++) { 705 sarry = &SCTP_BASE_STATS[cpu]; 706 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) { 707 sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec; 708 sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec; 709 } 710 sb.sctps_currestab += sarry->sctps_currestab; 711 sb.sctps_activeestab += sarry->sctps_activeestab; 712 sb.sctps_restartestab += sarry->sctps_restartestab; 713 sb.sctps_collisionestab += sarry->sctps_collisionestab; 714 sb.sctps_passiveestab += sarry->sctps_passiveestab; 715 sb.sctps_aborted += sarry->sctps_aborted; 716 sb.sctps_shutdown += sarry->sctps_shutdown; 717 sb.sctps_outoftheblue += sarry->sctps_outoftheblue; 718 sb.sctps_checksumerrors += sarry->sctps_checksumerrors; 719 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks; 720 sb.sctps_outorderchunks += sarry->sctps_outorderchunks; 721 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks; 722 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks; 723 sb.sctps_inorderchunks += sarry->sctps_inorderchunks; 724 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks; 725 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs; 726 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs; 727 sb.sctps_outpackets += sarry->sctps_outpackets; 728 sb.sctps_inpackets += sarry->sctps_inpackets; 729 sb.sctps_recvpackets += sarry->sctps_recvpackets; 730 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams; 731 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata; 732 sb.sctps_recvsacks += sarry->sctps_recvsacks; 733 sb.sctps_recvdata += sarry->sctps_recvdata; 734 sb.sctps_recvdupdata += sarry->sctps_recvdupdata; 735 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat; 736 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack; 737 sb.sctps_recvecne += sarry->sctps_recvecne; 738 sb.sctps_recvauth += sarry->sctps_recvauth; 739 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing; 740 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid; 741 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid; 742 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed; 743 sb.sctps_recvexpress += sarry->sctps_recvexpress; 744 sb.sctps_recvexpressm += sarry->sctps_recvexpressm; 745 sb.sctps_recvswcrc += sarry->sctps_recvswcrc; 746 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc; 747 sb.sctps_sendpackets += sarry->sctps_sendpackets; 748 sb.sctps_sendsacks += sarry->sctps_sendsacks; 749 sb.sctps_senddata += sarry->sctps_senddata; 750 sb.sctps_sendretransdata += sarry->sctps_sendretransdata; 751 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans; 752 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans; 753 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat; 754 sb.sctps_sendecne += sarry->sctps_sendecne; 755 sb.sctps_sendauth += sarry->sctps_sendauth; 756 sb.sctps_senderrors += sarry->sctps_senderrors; 757 sb.sctps_sendswcrc += sarry->sctps_sendswcrc; 758 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc; 759 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox; 760 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos; 761 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda; 762 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct; 763 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt; 764 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt; 765 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat; 766 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk; 767 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf; 768 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd; 769 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp; 770 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw; 771 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd; 772 sb.sctps_pdrpmark += sarry->sctps_pdrpmark; 773 sb.sctps_timoiterator += sarry->sctps_timoiterator; 774 sb.sctps_timodata += sarry->sctps_timodata; 775 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe; 776 sb.sctps_timoinit += sarry->sctps_timoinit; 777 sb.sctps_timosack += sarry->sctps_timosack; 778 sb.sctps_timoshutdown += sarry->sctps_timoshutdown; 779 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat; 780 sb.sctps_timocookie += sarry->sctps_timocookie; 781 sb.sctps_timosecret += sarry->sctps_timosecret; 782 sb.sctps_timopathmtu += sarry->sctps_timopathmtu; 783 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack; 784 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard; 785 sb.sctps_timostrmrst += sarry->sctps_timostrmrst; 786 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr; 787 sb.sctps_timoasconf += sarry->sctps_timoasconf; 788 sb.sctps_timodelprim += sarry->sctps_timodelprim; 789 sb.sctps_timoautoclose += sarry->sctps_timoautoclose; 790 sb.sctps_timoassockill += sarry->sctps_timoassockill; 791 sb.sctps_timoinpkill += sarry->sctps_timoinpkill; 792 sb.sctps_hdrops += sarry->sctps_hdrops; 793 sb.sctps_badsum += sarry->sctps_badsum; 794 sb.sctps_noport += sarry->sctps_noport; 795 sb.sctps_badvtag += sarry->sctps_badvtag; 796 sb.sctps_badsid += sarry->sctps_badsid; 797 sb.sctps_nomem += sarry->sctps_nomem; 798 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt; 799 sb.sctps_markedretrans += sarry->sctps_markedretrans; 800 sb.sctps_naglesent += sarry->sctps_naglesent; 801 sb.sctps_naglequeued += sarry->sctps_naglequeued; 802 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued; 803 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued; 804 sb.sctps_windowprobed += sarry->sctps_windowprobed; 805 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr; 806 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr; 807 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt; 808 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd; 809 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd; 810 sb.sctps_vtagexpress += sarry->sctps_vtagexpress; 811 sb.sctps_vtagbogus += sarry->sctps_vtagbogus; 812 sb.sctps_primary_randry += sarry->sctps_primary_randry; 813 sb.sctps_cmt_randry += sarry->sctps_cmt_randry; 814 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack; 815 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent; 816 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags; 817 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord; 818 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof; 819 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort; 820 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls; 821 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done; 822 sb.sctps_read_peeks += sarry->sctps_read_peeks; 823 sb.sctps_cached_chk += sarry->sctps_cached_chk; 824 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq; 825 sb.sctps_left_abandon += sarry->sctps_left_abandon; 826 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid; 827 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid; 828 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over; 829 sb.sctps_queue_upd_ecne += sarry->sctps_queue_upd_ecne; 830 sb.sctps_recvzerocrc += sarry->sctps_recvzerocrc; 831 sb.sctps_sendzerocrc += sarry->sctps_sendzerocrc; 832 if (req->newptr != NULL) { 833 memcpy(sarry, &sb_temp, sizeof(struct sctpstat)); 834 } 835 } 836 error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat)); 837#else 838 error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat)); 839 if (error != 0) { 840 return (error); 841 } 842 if (req->newptr != NULL) { 843 memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat)); 844 } 845#endif 846 return (error); 847} 848 849#if defined(SCTP_LOCAL_TRACE_BUF) 850static int 851sctp_sysctl_handle_trace_log(SYSCTL_HANDLER_ARGS) 852{ 853 int error; 854 855 error = SYSCTL_OUT(req, &SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log)); 856 return (error); 857} 858 859static int 860sctp_sysctl_handle_trace_log_clear(SYSCTL_HANDLER_ARGS) 861{ 862 int error = 0; 863 864 memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log)); 865 return (error); 866} 867#endif 868 869#define SCTP_UINT_SYSCTL(mib_name, var_name, prefix) \ 870 SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, \ 871 CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW) 872 873#define SCTP_UINT_SYSCTL_TUN(mib_name, var_name, prefix) \ 874 SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, \ 875 CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RWTUN|CTLFLAG_NOFETCH) 876 877#define SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, flags) \ 878 static int \ 879 sctp_sysctl_handle_##mib_name(SYSCTL_HANDLER_ARGS) \ 880 { \ 881 int error; \ 882 uint32_t new; \ 883 \ 884 new = SCTP_BASE_SYSCTL(var_name); \ 885 error = sysctl_handle_int(oidp, &new, 0, req); \ 886 if ((error == 0) && (req->newptr != NULL)) { \ 887 if ((new < prefix##_MIN) || \ 888 (new > prefix##_MAX)) { \ 889 error = EINVAL; \ 890 } else { \ 891 SCTP_BASE_SYSCTL(var_name) = new; \ 892 } \ 893 } \ 894 return (error); \ 895 } \ 896 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name, flags, NULL, 0, \ 897 sctp_sysctl_handle_##mib_name, "UI", prefix##_DESC) 898 899#define SCTP_UINT_SYSCTL_RDTUN(mib_name, var_name, prefix) \ 900 SYSCTL_UINT(_net_inet_sctp, OID_AUTO, mib_name, \ 901 CTLFLAG_VNET|CTLFLAG_RDTUN|CTLFLAG_NOFETCH, \ 902 &VNET_NAME(system_base_info.sctpsysctl.var_name), 0, \ 903 prefix##_DESC) 904 905/* 906 * sysctl definitions 907 */ 908 909SCTP_UINT_SYSCTL(sendspace, sctp_sendspace, SCTPCTL_MAXDGRAM); 910SCTP_UINT_SYSCTL(recvspace, sctp_recvspace, SCTPCTL_RECVSPACE); 911SCTP_UINT_SYSCTL(auto_asconf, sctp_auto_asconf, SCTPCTL_AUTOASCONF); 912SCTP_UINT_SYSCTL(ecn_enable, sctp_ecn_enable, SCTPCTL_ECN_ENABLE); 913SCTP_UINT_SYSCTL(pr_enable, sctp_pr_enable, SCTPCTL_PR_ENABLE); 914SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW, 915 NULL, 0, sctp_sysctl_handle_auth, "IU", SCTPCTL_AUTH_ENABLE_DESC); 916SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW, 917 NULL, 0, sctp_sysctl_handle_asconf, "IU", SCTPCTL_ASCONF_ENABLE_DESC); 918SCTP_UINT_SYSCTL(reconfig_enable, sctp_reconfig_enable, SCTPCTL_RECONFIG_ENABLE); 919SCTP_UINT_SYSCTL(nrsack_enable, sctp_nrsack_enable, SCTPCTL_NRSACK_ENABLE); 920SCTP_UINT_SYSCTL(pktdrop_enable, sctp_pktdrop_enable, SCTPCTL_PKTDROP_ENABLE); 921SCTP_UINT_SYSCTL(peer_chkoh, sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH); 922SCTP_UINT_SYSCTL(maxburst, sctp_max_burst_default, SCTPCTL_MAXBURST); 923SCTP_UINT_SYSCTL(fr_maxburst, sctp_fr_max_burst_default, SCTPCTL_FRMAXBURST); 924SCTP_UINT_SYSCTL(maxchunks, sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS); 925SCTP_UINT_SYSCTL_RDTUN(tcbhashsize, sctp_hashtblsize, SCTPCTL_TCBHASHSIZE); 926SCTP_UINT_SYSCTL_TUN(pcbhashsize, sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE); 927SCTP_UINT_SYSCTL_RDTUN(chunkscale, sctp_chunkscale, SCTPCTL_CHUNKSCALE); 928SCTP_UINT_SYSCTL(min_split_point, sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT); 929SCTP_UINT_SYSCTL(delayed_sack_time, sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME); 930SCTP_UINT_SYSCTL(sack_freq, sctp_sack_freq_default, SCTPCTL_SACK_FREQ); 931SCTP_UINT_SYSCTL(sys_resource, sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE); 932SCTP_UINT_SYSCTL(asoc_resource, sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE); 933SCTP_UINT_SYSCTL(heartbeat_interval, sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL); 934SCTP_UINT_SYSCTL(pmtu_raise_time, sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME); 935SCTP_UINT_SYSCTL(shutdown_guard_time, sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME); 936SCTP_UINT_SYSCTL(secret_lifetime, sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME); 937SCTP_UINT_SYSCTL(rto_max, sctp_rto_max_default, SCTPCTL_RTO_MAX); 938SCTP_UINT_SYSCTL(rto_min, sctp_rto_min_default, SCTPCTL_RTO_MIN); 939SCTP_UINT_SYSCTL(rto_initial, sctp_rto_initial_default, SCTPCTL_RTO_INITIAL); 940SCTP_UINT_SYSCTL(init_rto_max, sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX); 941SCTP_UINT_SYSCTL(valid_cookie_life, sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE); 942SCTP_UINT_SYSCTL(init_rtx_max, sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX); 943SCTP_UINT_SYSCTL(assoc_rtx_max, sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX); 944SCTP_UINT_SYSCTL(path_rtx_max, sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX); 945SCTP_UINT_SYSCTL(path_pf_threshold, sctp_path_pf_threshold, SCTPCTL_PATH_PF_THRESHOLD); 946SCTP_UINT_SYSCTL(add_more_on_output, sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT); 947SCTP_UINT_SYSCTL(incoming_streams, sctp_nr_incoming_streams_default, SCTPCTL_INCOMING_STREAMS); 948SCTP_UINT_SYSCTL(outgoing_streams, sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS); 949SCTP_UINT_SYSCTL(cmt_on_off, sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF); 950SCTP_UINT_SYSCTL(cmt_use_dac, sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC); 951SCTP_UINT_SYSCTL(cwnd_maxburst, sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST); 952SCTP_UINT_SYSCTL(nat_friendly, sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY); 953SCTP_UINT_SYSCTL(abc_l_var, sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR); 954SCTP_UINT_SYSCTL(max_chained_mbufs, sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS); 955SCTP_UINT_SYSCTL(do_sctp_drain, sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN); 956SCTP_UINT_SYSCTL(hb_max_burst, sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST); 957SCTP_UINT_SYSCTL(abort_at_limit, sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT); 958SCTP_UINT_SYSCTL(min_residual, sctp_min_residual, SCTPCTL_MIN_RESIDUAL); 959SCTP_UINT_SYSCTL(max_retran_chunk, sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK); 960SCTP_UINT_SYSCTL(log_level, sctp_logging_level, SCTPCTL_LOGGING_LEVEL); 961SCTP_UINT_SYSCTL(default_cc_module, sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE); 962SCTP_UINT_SYSCTL(default_ss_module, sctp_default_ss_module, SCTPCTL_DEFAULT_SS_MODULE); 963SCTP_UINT_SYSCTL(default_frag_interleave, sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE); 964SCTP_UINT_SYSCTL(mobility_base, sctp_mobility_base, SCTPCTL_MOBILITY_BASE); 965SCTP_UINT_SYSCTL(mobility_fasthandoff, sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF); 966#if defined(SCTP_LOCAL_TRACE_BUF) 967SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RD, 968 NULL, 0, sctp_sysctl_handle_trace_log, "S,sctplog", "SCTP logging (struct sctp_log)"); 969SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW, 970 NULL, 0, sctp_sysctl_handle_trace_log_clear, "IU", "Clear SCTP Logging buffer"); 971#endif 972SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW, 973 NULL, 0, sctp_sysctl_handle_udp_tunneling, "IU", SCTPCTL_UDP_TUNNELING_PORT_DESC); 974SCTP_UINT_SYSCTL(enable_sack_immediately, sctp_enable_sack_immediately, SCTPCTL_SACK_IMMEDIATELY_ENABLE); 975SCTP_UINT_SYSCTL(nat_friendly_init, sctp_inits_include_nat_friendly, SCTPCTL_NAT_FRIENDLY_INITS); 976SCTP_UINT_SYSCTL(vtag_time_wait, sctp_vtag_time_wait, SCTPCTL_TIME_WAIT); 977SCTP_UINT_SYSCTL(buffer_splitting, sctp_buffer_splitting, SCTPCTL_BUFFER_SPLITTING); 978SCTP_UINT_SYSCTL(initial_cwnd, sctp_initial_cwnd, SCTPCTL_INITIAL_CWND); 979SCTP_UINT_SYSCTL(rttvar_bw, sctp_rttvar_bw, SCTPCTL_RTTVAR_BW); 980SCTP_UINT_SYSCTL(rttvar_rtt, sctp_rttvar_rtt, SCTPCTL_RTTVAR_RTT); 981SCTP_UINT_SYSCTL(rttvar_eqret, sctp_rttvar_eqret, SCTPCTL_RTTVAR_EQRET); 982SCTP_UINT_SYSCTL(rttvar_steady_step, sctp_steady_step, SCTPCTL_RTTVAR_STEADYS); 983SCTP_UINT_SYSCTL(use_dcccecn, sctp_use_dccc_ecn, SCTPCTL_RTTVAR_DCCCECN); 984SCTP_UINT_SYSCTL(blackhole, sctp_blackhole, SCTPCTL_BLACKHOLE); 985SCTP_UINT_SYSCTL(sendall_limit, sctp_sendall_limit, SCTPCTL_SENDALL_LIMIT); 986SCTP_UINT_SYSCTL(diag_info_code, sctp_diag_info_code, SCTPCTL_DIAG_INFO_CODE); 987SCTP_UINT_SYSCTL(ootb_with_zero_cksum, sctp_ootb_with_zero_cksum, SCTPCTL_OOTB_WITH_ZERO_CKSUM); 988#ifdef SCTP_DEBUG 989SCTP_UINT_SYSCTL(debug, sctp_debug_on, SCTPCTL_DEBUG); 990#endif 991SYSCTL_PROC(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RW, 992 NULL, 0, sctp_sysctl_handle_stats, "S,sctpstat", "SCTP statistics (struct sctp_stat)"); 993SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_VNET | CTLTYPE_OPAQUE | CTLFLAG_RD, 994 NULL, 0, sctp_sysctl_handle_assoclist, "S,xassoc", "List of active SCTP associations"); 995