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