1/*-
2 * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * a) Redistributions of source code must retain the above copyright notice,
10 *    this list of conditions and the following disclaimer.
11 *
12 * b) Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the distribution.
15 *
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 *    contributors may be used to endorse or promote products derived
18 *    from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD$");
35
36#include <netinet/sctp_os.h>
37#include <netinet/sctp.h>
38#include <netinet/sctp_constants.h>
39#include <netinet/sctp_sysctl.h>
40#include <netinet/sctp_pcb.h>
41#include <netinet/sctputil.h>
42#include <netinet/sctp_output.h>
43#include <sys/smp.h>
44
45/*
46 * sysctl tunable variables
47 */
48
49void
50sctp_init_sysctls()
51{
52	SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
53	SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
54	SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
55	SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
56	SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
57	SCTP_BASE_SYSCTL(sctp_strict_sacks) = SCTPCTL_STRICT_SACKS_DEFAULT;
58	SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
59	SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
60	SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
61	SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
62	SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
63	SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
64	SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
65	SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
66	SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
67	SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
68	SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
69	SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
70	SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
71	SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
72	SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
73	SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
74	SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
75	SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
76	SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
77	SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
78	SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
79	SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
80	SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
81	SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
82	SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
83	SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
84	SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT;
85	SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
86	SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
87	/* EY */
88	SCTP_BASE_SYSCTL(sctp_nr_sack_on_off) = SCTPCTL_NR_SACK_ON_OFF_DEFAULT;
89	SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
90	SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
91	SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk) = SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT;
92	SCTP_BASE_SYSCTL(sctp_auth_disable) = SCTPCTL_AUTH_DISABLE_DEFAULT;
93	SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
94	SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
95	SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
96	SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
97	SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
98	SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
99	SCTP_BASE_SYSCTL(sctp_strict_data_order) = SCTPCTL_STRICT_DATA_ORDER_DEFAULT;
100	SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
101	SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
102	SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
103	/* JRS - Variable for default congestion control module */
104	SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
105	/* RS - Variable for default stream scheduling module */
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_diag_info_code) = SCTPCTL_DIAG_INFO_CODE_DEFAULT;
120#if defined(SCTP_LOCAL_TRACE_BUF)
121	memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
122#endif
123	SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
124	SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
125	SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
126#if defined(SCTP_DEBUG)
127	SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
128#endif
129#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
130	SCTP_BASE_SYSCTL(sctp_output_unlocked) = SCTPCTL_OUTPUT_UNLOCKED_DEFAULT;
131#endif
132}
133
134
135/* It returns an upper limit. No filtering is done here */
136static unsigned int
137number_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
187copy_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 = (struct sockaddr_in *)&sctp_ifa->address.sa;
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 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
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							if (sin6->sin6_scope_id == 0) {
282								/*
283								 * bad link
284								 * local
285								 * address
286								 */
287								if (sa6_recoverscope(sin6) != 0)
288									continue;
289							}
290						}
291						if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
292							continue;
293					} else {
294						continue;
295					}
296					break;
297#endif
298				default:
299					continue;
300				}
301				memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
302				memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
303				SCTP_INP_RUNLOCK(inp);
304				SCTP_INP_INFO_RUNLOCK();
305				error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
306				if (error) {
307					return (error);
308				} else {
309					SCTP_INP_INFO_RLOCK();
310					SCTP_INP_RLOCK(inp);
311				}
312			}
313		}
314	} else {
315		LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
316			/* ignore if blacklisted at association level */
317			if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
318				continue;
319			memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
320			memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
321			xladdr.start_time.tv_sec = (uint32_t) laddr->start_time.tv_sec;
322			xladdr.start_time.tv_usec = (uint32_t) laddr->start_time.tv_usec;
323			SCTP_INP_RUNLOCK(inp);
324			SCTP_INP_INFO_RUNLOCK();
325			error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
326			if (error) {
327				return (error);
328			} else {
329				SCTP_INP_INFO_RLOCK();
330				SCTP_INP_RLOCK(inp);
331			}
332		}
333	}
334	memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
335	xladdr.last = 1;
336	SCTP_INP_RUNLOCK(inp);
337	SCTP_INP_INFO_RUNLOCK();
338	error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
339
340	if (error) {
341		return (error);
342	} else {
343		SCTP_INP_INFO_RLOCK();
344		SCTP_INP_RLOCK(inp);
345		return (0);
346	}
347}
348
349/*
350 * sysctl functions
351 */
352static int
353sctp_assoclist(SYSCTL_HANDLER_ARGS)
354{
355	unsigned int number_of_endpoints;
356	unsigned int number_of_local_addresses;
357	unsigned int number_of_associations;
358	unsigned int number_of_remote_addresses;
359	unsigned int n;
360	int error;
361	struct sctp_inpcb *inp;
362	struct sctp_tcb *stcb;
363	struct sctp_nets *net;
364	struct xsctp_inpcb xinpcb;
365	struct xsctp_tcb xstcb;
366	struct xsctp_raddr xraddr;
367	struct socket *so;
368
369	number_of_endpoints = 0;
370	number_of_local_addresses = 0;
371	number_of_associations = 0;
372	number_of_remote_addresses = 0;
373
374	SCTP_INP_INFO_RLOCK();
375	if (req->oldptr == USER_ADDR_NULL) {
376		LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
377			SCTP_INP_RLOCK(inp);
378			number_of_endpoints++;
379			number_of_local_addresses += number_of_addresses(inp);
380			LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
381				number_of_associations++;
382				number_of_local_addresses += number_of_addresses(inp);
383				TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
384					number_of_remote_addresses++;
385				}
386			}
387			SCTP_INP_RUNLOCK(inp);
388		}
389		SCTP_INP_INFO_RUNLOCK();
390		n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
391		    (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
392		    (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
393		    (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
394
395		/* request some more memory than needed */
396		req->oldidx = (n + n / 8);
397		return (0);
398	}
399	if (req->newptr != USER_ADDR_NULL) {
400		SCTP_INP_INFO_RUNLOCK();
401		SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
402		return (EPERM);
403	}
404	LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
405		SCTP_INP_RLOCK(inp);
406		if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
407			/* if its allgone it is being freed - skip it  */
408			goto skip;
409		}
410		xinpcb.last = 0;
411		xinpcb.local_port = ntohs(inp->sctp_lport);
412		xinpcb.flags = inp->sctp_flags;
413		xinpcb.features = (uint32_t) inp->sctp_features;
414		xinpcb.total_sends = inp->total_sends;
415		xinpcb.total_recvs = inp->total_recvs;
416		xinpcb.total_nospaces = inp->total_nospaces;
417		xinpcb.fragmentation_point = inp->sctp_frag_point;
418		so = inp->sctp_socket;
419		if ((so == NULL) ||
420		    (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
421			xinpcb.qlen = 0;
422			xinpcb.maxqlen = 0;
423		} else {
424			xinpcb.qlen = so->so_qlen;
425			xinpcb.maxqlen = so->so_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 = 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 = SCTP_GET_STATE(&stcb->asoc);	/* FIXME */
453			/* 7.0 does not support these */
454			xstcb.assoc_id = sctp_get_associd(stcb);
455			xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
456			xstcb.in_streams = stcb->asoc.streamincnt;
457			xstcb.out_streams = stcb->asoc.streamoutcnt;
458			xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
459			xstcb.primary_process = 0;	/* not really supported
460							 * yet */
461			xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
462			xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
463			xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
464			xstcb.start_time.tv_sec = (uint32_t) stcb->asoc.start_time.tv_sec;
465			xstcb.start_time.tv_usec = (uint32_t) stcb->asoc.start_time.tv_usec;
466			xstcb.discontinuity_time.tv_sec = (uint32_t) stcb->asoc.discontinuity_time.tv_sec;
467			xstcb.discontinuity_time.tv_usec = (uint32_t) stcb->asoc.discontinuity_time.tv_usec;
468			xstcb.total_sends = stcb->total_sends;
469			xstcb.total_recvs = stcb->total_recvs;
470			xstcb.local_tag = stcb->asoc.my_vtag;
471			xstcb.remote_tag = stcb->asoc.peer_vtag;
472			xstcb.initial_tsn = stcb->asoc.init_seq_number;
473			xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
474			xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
475			xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
476			xstcb.mtu = stcb->asoc.smallest_mtu;
477			xstcb.refcnt = stcb->asoc.refcnt;
478			SCTP_INP_RUNLOCK(inp);
479			SCTP_INP_INFO_RUNLOCK();
480			error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
481			if (error) {
482				SCTP_INP_DECR_REF(inp);
483				atomic_subtract_int(&stcb->asoc.refcnt, 1);
484				return (error);
485			}
486			SCTP_INP_INFO_RLOCK();
487			SCTP_INP_RLOCK(inp);
488			error = copy_out_local_addresses(inp, stcb, req);
489			if (error) {
490				SCTP_INP_DECR_REF(inp);
491				atomic_subtract_int(&stcb->asoc.refcnt, 1);
492				return (error);
493			}
494			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
495				xraddr.last = 0;
496				xraddr.address = net->ro._l_addr;
497				xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
498				xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
499				xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
500				xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
501				xraddr.rto = net->RTO;
502				xraddr.max_path_rtx = net->failure_threshold;
503				xraddr.rtx = net->marked_retrans;
504				xraddr.error_counter = net->error_count;
505				xraddr.cwnd = net->cwnd;
506				xraddr.flight_size = net->flight_size;
507				xraddr.mtu = net->mtu;
508				xraddr.rtt = net->rtt / 1000;
509				xraddr.heartbeat_interval = net->heart_beat_delay;
510				xraddr.start_time.tv_sec = (uint32_t) net->start_time.tv_sec;
511				xraddr.start_time.tv_usec = (uint32_t) net->start_time.tv_usec;
512				SCTP_INP_RUNLOCK(inp);
513				SCTP_INP_INFO_RUNLOCK();
514				error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
515				if (error) {
516					SCTP_INP_DECR_REF(inp);
517					atomic_subtract_int(&stcb->asoc.refcnt, 1);
518					return (error);
519				}
520				SCTP_INP_INFO_RLOCK();
521				SCTP_INP_RLOCK(inp);
522			}
523			atomic_subtract_int(&stcb->asoc.refcnt, 1);
524			memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
525			xraddr.last = 1;
526			SCTP_INP_RUNLOCK(inp);
527			SCTP_INP_INFO_RUNLOCK();
528			error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
529			if (error) {
530				SCTP_INP_DECR_REF(inp);
531				return (error);
532			}
533			SCTP_INP_INFO_RLOCK();
534			SCTP_INP_RLOCK(inp);
535		}
536		SCTP_INP_DECR_REF(inp);
537		SCTP_INP_RUNLOCK(inp);
538		SCTP_INP_INFO_RUNLOCK();
539		memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
540		xstcb.last = 1;
541		error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
542		if (error) {
543			return (error);
544		}
545skip:
546		SCTP_INP_INFO_RLOCK();
547	}
548	SCTP_INP_INFO_RUNLOCK();
549
550	memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
551	xinpcb.last = 1;
552	error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
553	return (error);
554}
555
556
557#define RANGECHK(var, min, max) \
558	if ((var) < (min)) { (var) = (min); } \
559	else if ((var) > (max)) { (var) = (max); }
560
561static int
562sysctl_sctp_udp_tunneling_check(SYSCTL_HANDLER_ARGS)
563{
564	int error;
565	uint32_t old_sctp_udp_tunneling_port;
566
567	SCTP_INP_INFO_RLOCK();
568	old_sctp_udp_tunneling_port = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
569	SCTP_INP_INFO_RUNLOCK();
570	error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
571	if (error == 0) {
572		RANGECHK(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), SCTPCTL_UDP_TUNNELING_PORT_MIN, SCTPCTL_UDP_TUNNELING_PORT_MAX);
573		if (old_sctp_udp_tunneling_port == SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
574			error = 0;
575			goto out;
576		}
577		SCTP_INP_INFO_WLOCK();
578		if (old_sctp_udp_tunneling_port) {
579			sctp_over_udp_stop();
580		}
581		if (SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)) {
582			if (sctp_over_udp_start()) {
583				SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = 0;
584			}
585		}
586		SCTP_INP_INFO_WUNLOCK();
587	}
588out:
589	return (error);
590}
591
592
593static int
594sysctl_sctp_check(SYSCTL_HANDLER_ARGS)
595{
596	int error;
597
598#ifdef VIMAGE
599	error = vnet_sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
600#else
601	error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
602#endif
603	if (error == 0) {
604		RANGECHK(SCTP_BASE_SYSCTL(sctp_sendspace), SCTPCTL_MAXDGRAM_MIN, SCTPCTL_MAXDGRAM_MAX);
605		RANGECHK(SCTP_BASE_SYSCTL(sctp_recvspace), SCTPCTL_RECVSPACE_MIN, SCTPCTL_RECVSPACE_MAX);
606		RANGECHK(SCTP_BASE_SYSCTL(sctp_auto_asconf), SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
607		RANGECHK(SCTP_BASE_SYSCTL(sctp_ecn_enable), SCTPCTL_ECN_ENABLE_MIN, SCTPCTL_ECN_ENABLE_MAX);
608		RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_sacks), SCTPCTL_STRICT_SACKS_MIN, SCTPCTL_STRICT_SACKS_MAX);
609		RANGECHK(SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), SCTPCTL_PEER_CHKOH_MIN, SCTPCTL_PEER_CHKOH_MAX);
610		RANGECHK(SCTP_BASE_SYSCTL(sctp_max_burst_default), SCTPCTL_MAXBURST_MIN, SCTPCTL_MAXBURST_MAX);
611		RANGECHK(SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), SCTPCTL_FRMAXBURST_MIN, SCTPCTL_FRMAXBURST_MAX);
612		RANGECHK(SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), SCTPCTL_MAXCHUNKS_MIN, SCTPCTL_MAXCHUNKS_MAX);
613		RANGECHK(SCTP_BASE_SYSCTL(sctp_hashtblsize), SCTPCTL_TCBHASHSIZE_MIN, SCTPCTL_TCBHASHSIZE_MAX);
614		RANGECHK(SCTP_BASE_SYSCTL(sctp_pcbtblsize), SCTPCTL_PCBHASHSIZE_MIN, SCTPCTL_PCBHASHSIZE_MAX);
615		RANGECHK(SCTP_BASE_SYSCTL(sctp_min_split_point), SCTPCTL_MIN_SPLIT_POINT_MIN, SCTPCTL_MIN_SPLIT_POINT_MAX);
616		RANGECHK(SCTP_BASE_SYSCTL(sctp_chunkscale), SCTPCTL_CHUNKSCALE_MIN, SCTPCTL_CHUNKSCALE_MAX);
617		RANGECHK(SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), SCTPCTL_DELAYED_SACK_TIME_MIN, SCTPCTL_DELAYED_SACK_TIME_MAX);
618		RANGECHK(SCTP_BASE_SYSCTL(sctp_sack_freq_default), SCTPCTL_SACK_FREQ_MIN, SCTPCTL_SACK_FREQ_MAX);
619		RANGECHK(SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), SCTPCTL_SYS_RESOURCE_MIN, SCTPCTL_SYS_RESOURCE_MAX);
620		RANGECHK(SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), SCTPCTL_ASOC_RESOURCE_MIN, SCTPCTL_ASOC_RESOURCE_MAX);
621		RANGECHK(SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), SCTPCTL_HEARTBEAT_INTERVAL_MIN, SCTPCTL_HEARTBEAT_INTERVAL_MAX);
622		RANGECHK(SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), SCTPCTL_PMTU_RAISE_TIME_MIN, SCTPCTL_PMTU_RAISE_TIME_MAX);
623		RANGECHK(SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), SCTPCTL_SHUTDOWN_GUARD_TIME_MIN, SCTPCTL_SHUTDOWN_GUARD_TIME_MAX);
624		RANGECHK(SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), SCTPCTL_SECRET_LIFETIME_MIN, SCTPCTL_SECRET_LIFETIME_MAX);
625		RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_max_default), SCTPCTL_RTO_MAX_MIN, SCTPCTL_RTO_MAX_MAX);
626		RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_min_default), SCTPCTL_RTO_MIN_MIN, SCTPCTL_RTO_MIN_MAX);
627		RANGECHK(SCTP_BASE_SYSCTL(sctp_rto_initial_default), SCTPCTL_RTO_INITIAL_MIN, SCTPCTL_RTO_INITIAL_MAX);
628		RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rto_max_default), SCTPCTL_INIT_RTO_MAX_MIN, SCTPCTL_INIT_RTO_MAX_MAX);
629		RANGECHK(SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), SCTPCTL_VALID_COOKIE_LIFE_MIN, SCTPCTL_VALID_COOKIE_LIFE_MAX);
630		RANGECHK(SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), SCTPCTL_INIT_RTX_MAX_MIN, SCTPCTL_INIT_RTX_MAX_MAX);
631		RANGECHK(SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), SCTPCTL_ASSOC_RTX_MAX_MIN, SCTPCTL_ASSOC_RTX_MAX_MAX);
632		RANGECHK(SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), SCTPCTL_PATH_RTX_MAX_MIN, SCTPCTL_PATH_RTX_MAX_MAX);
633		RANGECHK(SCTP_BASE_SYSCTL(sctp_path_pf_threshold), SCTPCTL_PATH_PF_THRESHOLD_MIN, SCTPCTL_PATH_PF_THRESHOLD_MAX);
634		RANGECHK(SCTP_BASE_SYSCTL(sctp_add_more_threshold), SCTPCTL_ADD_MORE_ON_OUTPUT_MIN, SCTPCTL_ADD_MORE_ON_OUTPUT_MAX);
635		RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default), SCTPCTL_INCOMING_STREAMS_MIN, SCTPCTL_INCOMING_STREAMS_MAX);
636		RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), SCTPCTL_OUTGOING_STREAMS_MIN, SCTPCTL_OUTGOING_STREAMS_MAX);
637		RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_on_off), SCTPCTL_CMT_ON_OFF_MIN, SCTPCTL_CMT_ON_OFF_MAX);
638		/* EY */
639		RANGECHK(SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), SCTPCTL_NR_SACK_ON_OFF_MIN, SCTPCTL_NR_SACK_ON_OFF_MAX);
640		RANGECHK(SCTP_BASE_SYSCTL(sctp_cmt_use_dac), SCTPCTL_CMT_USE_DAC_MIN, SCTPCTL_CMT_USE_DAC_MAX);
641		RANGECHK(SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), SCTPCTL_CWND_MAXBURST_MIN, SCTPCTL_CWND_MAXBURST_MAX);
642		RANGECHK(SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), SCTPCTL_ASCONF_AUTH_NOCHK_MIN, SCTPCTL_ASCONF_AUTH_NOCHK_MAX);
643		RANGECHK(SCTP_BASE_SYSCTL(sctp_auth_disable), SCTPCTL_AUTH_DISABLE_MIN, SCTPCTL_AUTH_DISABLE_MAX);
644		RANGECHK(SCTP_BASE_SYSCTL(sctp_nat_friendly), SCTPCTL_NAT_FRIENDLY_MIN, SCTPCTL_NAT_FRIENDLY_MAX);
645		RANGECHK(SCTP_BASE_SYSCTL(sctp_L2_abc_variable), SCTPCTL_ABC_L_VAR_MIN, SCTPCTL_ABC_L_VAR_MAX);
646		RANGECHK(SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), SCTPCTL_MAX_CHAINED_MBUFS_MIN, SCTPCTL_MAX_CHAINED_MBUFS_MAX);
647		RANGECHK(SCTP_BASE_SYSCTL(sctp_do_drain), SCTPCTL_DO_SCTP_DRAIN_MIN, SCTPCTL_DO_SCTP_DRAIN_MAX);
648		RANGECHK(SCTP_BASE_SYSCTL(sctp_hb_maxburst), SCTPCTL_HB_MAX_BURST_MIN, SCTPCTL_HB_MAX_BURST_MAX);
649		RANGECHK(SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), SCTPCTL_ABORT_AT_LIMIT_MIN, SCTPCTL_ABORT_AT_LIMIT_MAX);
650		RANGECHK(SCTP_BASE_SYSCTL(sctp_strict_data_order), SCTPCTL_STRICT_DATA_ORDER_MIN, SCTPCTL_STRICT_DATA_ORDER_MAX);
651		RANGECHK(SCTP_BASE_SYSCTL(sctp_min_residual), SCTPCTL_MIN_RESIDUAL_MIN, SCTPCTL_MIN_RESIDUAL_MAX);
652		RANGECHK(SCTP_BASE_SYSCTL(sctp_max_retran_chunk), SCTPCTL_MAX_RETRAN_CHUNK_MIN, SCTPCTL_MAX_RETRAN_CHUNK_MAX);
653		RANGECHK(SCTP_BASE_SYSCTL(sctp_logging_level), SCTPCTL_LOGGING_LEVEL_MIN, SCTPCTL_LOGGING_LEVEL_MAX);
654		RANGECHK(SCTP_BASE_SYSCTL(sctp_default_cc_module), SCTPCTL_DEFAULT_CC_MODULE_MIN, SCTPCTL_DEFAULT_CC_MODULE_MAX);
655		RANGECHK(SCTP_BASE_SYSCTL(sctp_default_ss_module), SCTPCTL_DEFAULT_SS_MODULE_MIN, SCTPCTL_DEFAULT_SS_MODULE_MAX);
656		RANGECHK(SCTP_BASE_SYSCTL(sctp_default_frag_interleave), SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX);
657		RANGECHK(SCTP_BASE_SYSCTL(sctp_vtag_time_wait), SCTPCTL_TIME_WAIT_MIN, SCTPCTL_TIME_WAIT_MAX);
658		RANGECHK(SCTP_BASE_SYSCTL(sctp_buffer_splitting), SCTPCTL_BUFFER_SPLITTING_MIN, SCTPCTL_BUFFER_SPLITTING_MAX);
659		RANGECHK(SCTP_BASE_SYSCTL(sctp_initial_cwnd), SCTPCTL_INITIAL_CWND_MIN, SCTPCTL_INITIAL_CWND_MAX);
660		RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_bw), SCTPCTL_RTTVAR_BW_MIN, SCTPCTL_RTTVAR_BW_MAX);
661		RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_rtt), SCTPCTL_RTTVAR_RTT_MIN, SCTPCTL_RTTVAR_RTT_MAX);
662		RANGECHK(SCTP_BASE_SYSCTL(sctp_rttvar_eqret), SCTPCTL_RTTVAR_EQRET_MIN, SCTPCTL_RTTVAR_EQRET_MAX);
663		RANGECHK(SCTP_BASE_SYSCTL(sctp_steady_step), SCTPCTL_RTTVAR_STEADYS_MIN, SCTPCTL_RTTVAR_STEADYS_MAX);
664		RANGECHK(SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), SCTPCTL_RTTVAR_DCCCECN_MIN, SCTPCTL_RTTVAR_DCCCECN_MAX);
665		RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_base), SCTPCTL_MOBILITY_BASE_MIN, SCTPCTL_MOBILITY_BASE_MAX);
666		RANGECHK(SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), SCTPCTL_MOBILITY_FASTHANDOFF_MIN, SCTPCTL_MOBILITY_FASTHANDOFF_MAX);
667		RANGECHK(SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), SCTPCTL_SACK_IMMEDIATELY_ENABLE_MIN, SCTPCTL_SACK_IMMEDIATELY_ENABLE_MAX);
668		RANGECHK(SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), SCTPCTL_NAT_FRIENDLY_INITS_MIN, SCTPCTL_NAT_FRIENDLY_INITS_MAX);
669		RANGECHK(SCTP_BASE_SYSCTL(sctp_blackhole), SCTPCTL_BLACKHOLE_MIN, SCTPCTL_BLACKHOLE_MAX);
670		RANGECHK(SCTP_BASE_SYSCTL(sctp_diag_info_code), SCTPCTL_DIAG_INFO_CODE_MIN, SCTPCTL_DIAG_INFO_CODE_MAX);
671
672#ifdef SCTP_DEBUG
673		RANGECHK(SCTP_BASE_SYSCTL(sctp_debug_on), SCTPCTL_DEBUG_MIN, SCTPCTL_DEBUG_MAX);
674#endif
675#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
676		RANGECHK(SCTP_BASE_SYSCTL(sctp_output_unlocked), SCTPCTL_OUTPUT_UNLOCKED_MIN, SCTPCTL_OUTPUT_UNLOCKED_MAX);
677#endif
678	}
679	return (error);
680}
681
682#if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
683static int
684sysctl_stat_get(SYSCTL_HANDLER_ARGS)
685{
686	int cpu, error;
687	struct sctpstat sb, *sarry, *cpin = NULL;
688
689	if ((req->newptr) && (req->newlen == sizeof(struct sctpstat))) {
690		/*
691		 * User wants us to clear or at least reset the counters to
692		 * the specified values.
693		 */
694		cpin = (struct sctpstat *)req->newptr;
695	} else if (req->newptr) {
696		/* Must be a stat structure */
697		return (EINVAL);
698	}
699	memset(&sb, 0, sizeof(sb));
700	for (cpu = 0; cpu < mp_maxid; cpu++) {
701		sarry = &SCTP_BASE_STATS[cpu];
702		if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
703			sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
704			sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
705		}
706		sb.sctps_currestab += sarry->sctps_currestab;
707		sb.sctps_activeestab += sarry->sctps_activeestab;
708		sb.sctps_restartestab += sarry->sctps_restartestab;
709		sb.sctps_collisionestab += sarry->sctps_collisionestab;
710		sb.sctps_passiveestab += sarry->sctps_passiveestab;
711		sb.sctps_aborted += sarry->sctps_aborted;
712		sb.sctps_shutdown += sarry->sctps_shutdown;
713		sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
714		sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
715		sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
716		sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
717		sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
718		sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
719		sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
720		sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
721		sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
722		sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
723		sb.sctps_outpackets += sarry->sctps_outpackets;
724		sb.sctps_inpackets += sarry->sctps_inpackets;
725		sb.sctps_recvpackets += sarry->sctps_recvpackets;
726		sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
727		sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
728		sb.sctps_recvsacks += sarry->sctps_recvsacks;
729		sb.sctps_recvdata += sarry->sctps_recvdata;
730		sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
731		sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
732		sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
733		sb.sctps_recvecne += sarry->sctps_recvecne;
734		sb.sctps_recvauth += sarry->sctps_recvauth;
735		sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
736		sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
737		sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
738		sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
739		sb.sctps_recvexpress += sarry->sctps_recvexpress;
740		sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
741		sb.sctps_recvnocrc += sarry->sctps_recvnocrc;
742		sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
743		sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
744		sb.sctps_sendpackets += sarry->sctps_sendpackets;
745		sb.sctps_sendsacks += sarry->sctps_sendsacks;
746		sb.sctps_senddata += sarry->sctps_senddata;
747		sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
748		sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
749		sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
750		sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
751		sb.sctps_sendecne += sarry->sctps_sendecne;
752		sb.sctps_sendauth += sarry->sctps_sendauth;
753		sb.sctps_senderrors += sarry->sctps_senderrors;
754		sb.sctps_sendnocrc += sarry->sctps_sendnocrc;
755		sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
756		sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
757		sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
758		sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
759		sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
760		sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
761		sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
762		sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
763		sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
764		sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
765		sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
766		sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
767		sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
768		sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
769		sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
770		sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
771		sb.sctps_timoiterator += sarry->sctps_timoiterator;
772		sb.sctps_timodata += sarry->sctps_timodata;
773		sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
774		sb.sctps_timoinit += sarry->sctps_timoinit;
775		sb.sctps_timosack += sarry->sctps_timosack;
776		sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
777		sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
778		sb.sctps_timocookie += sarry->sctps_timocookie;
779		sb.sctps_timosecret += sarry->sctps_timosecret;
780		sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
781		sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
782		sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
783		sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
784		sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
785		sb.sctps_timoasconf += sarry->sctps_timoasconf;
786		sb.sctps_timodelprim += sarry->sctps_timodelprim;
787		sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
788		sb.sctps_timoassockill += sarry->sctps_timoassockill;
789		sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
790		sb.sctps_hdrops += sarry->sctps_hdrops;
791		sb.sctps_badsum += sarry->sctps_badsum;
792		sb.sctps_noport += sarry->sctps_noport;
793		sb.sctps_badvtag += sarry->sctps_badvtag;
794		sb.sctps_badsid += sarry->sctps_badsid;
795		sb.sctps_nomem += sarry->sctps_nomem;
796		sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
797		sb.sctps_markedretrans += sarry->sctps_markedretrans;
798		sb.sctps_naglesent += sarry->sctps_naglesent;
799		sb.sctps_naglequeued += sarry->sctps_naglequeued;
800		sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
801		sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
802		sb.sctps_windowprobed += sarry->sctps_windowprobed;
803		sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
804		sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
805		sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
806		sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
807		sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
808		sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
809		sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
810		sb.sctps_primary_randry += sarry->sctps_primary_randry;
811		sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
812		sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
813		sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
814		sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
815		sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
816		sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
817		sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
818		sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
819		sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
820		sb.sctps_read_peeks += sarry->sctps_read_peeks;
821		sb.sctps_cached_chk += sarry->sctps_cached_chk;
822		sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
823		sb.sctps_left_abandon += sarry->sctps_left_abandon;
824		sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
825		sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
826		sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
827		if (cpin) {
828			memcpy(sarry, cpin, sizeof(struct sctpstat));
829		}
830	}
831	error = SYSCTL_OUT(req, &sb, sizeof(sb));
832	return (error);
833}
834
835#endif
836
837#if defined(SCTP_LOCAL_TRACE_BUF)
838static int
839sysctl_sctp_cleartrace(SYSCTL_HANDLER_ARGS)
840{
841	int error = 0;
842
843	memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
844	return (error);
845}
846
847#endif
848
849
850/*
851 * sysctl definitions
852 */
853
854SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sendspace, CTLTYPE_UINT | CTLFLAG_RW,
855    &SCTP_BASE_SYSCTL(sctp_sendspace), 0, sysctl_sctp_check, "IU",
856    SCTPCTL_MAXDGRAM_DESC);
857
858SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, recvspace, CTLTYPE_UINT | CTLFLAG_RW,
859    &SCTP_BASE_SYSCTL(sctp_recvspace), 0, sysctl_sctp_check, "IU",
860    SCTPCTL_RECVSPACE_DESC);
861
862SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, auto_asconf, CTLTYPE_UINT | CTLFLAG_RW,
863    &SCTP_BASE_SYSCTL(sctp_auto_asconf), 0, sysctl_sctp_check, "IU",
864    SCTPCTL_AUTOASCONF_DESC);
865
866SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, ecn_enable, CTLTYPE_UINT | CTLFLAG_RW,
867    &SCTP_BASE_SYSCTL(sctp_ecn_enable), 0, sysctl_sctp_check, "IU",
868    SCTPCTL_ECN_ENABLE_DESC);
869
870SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, strict_sacks, CTLTYPE_UINT | CTLFLAG_RW,
871    &SCTP_BASE_SYSCTL(sctp_strict_sacks), 0, sysctl_sctp_check, "IU",
872    SCTPCTL_STRICT_SACKS_DESC);
873
874
875SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, peer_chkoh, CTLTYPE_UINT | CTLFLAG_RW,
876    &SCTP_BASE_SYSCTL(sctp_peer_chunk_oh), 0, sysctl_sctp_check, "IU",
877    SCTPCTL_PEER_CHKOH_DESC);
878
879SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, maxburst, CTLTYPE_UINT | CTLFLAG_RW,
880    &SCTP_BASE_SYSCTL(sctp_max_burst_default), 0, sysctl_sctp_check, "IU",
881    SCTPCTL_MAXBURST_DESC);
882
883SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, fr_maxburst, CTLTYPE_UINT | CTLFLAG_RW,
884    &SCTP_BASE_SYSCTL(sctp_fr_max_burst_default), 0, sysctl_sctp_check, "IU",
885    SCTPCTL_FRMAXBURST_DESC);
886
887SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, maxchunks, CTLTYPE_UINT | CTLFLAG_RW,
888    &SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue), 0, sysctl_sctp_check, "IU",
889    SCTPCTL_MAXCHUNKS_DESC);
890
891SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, tcbhashsize, CTLTYPE_UINT | CTLFLAG_RW,
892    &SCTP_BASE_SYSCTL(sctp_hashtblsize), 0, sysctl_sctp_check, "IU",
893    SCTPCTL_TCBHASHSIZE_DESC);
894
895SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, pcbhashsize, CTLTYPE_UINT | CTLFLAG_RW,
896    &SCTP_BASE_SYSCTL(sctp_pcbtblsize), 0, sysctl_sctp_check, "IU",
897    SCTPCTL_PCBHASHSIZE_DESC);
898
899SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, min_split_point, CTLTYPE_UINT | CTLFLAG_RW,
900    &SCTP_BASE_SYSCTL(sctp_min_split_point), 0, sysctl_sctp_check, "IU",
901    SCTPCTL_MIN_SPLIT_POINT_DESC);
902
903SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, chunkscale, CTLTYPE_UINT | CTLFLAG_RW,
904    &SCTP_BASE_SYSCTL(sctp_chunkscale), 0, sysctl_sctp_check, "IU",
905    SCTPCTL_CHUNKSCALE_DESC);
906
907SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, delayed_sack_time, CTLTYPE_UINT | CTLFLAG_RW,
908    &SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default), 0, sysctl_sctp_check, "IU",
909    SCTPCTL_DELAYED_SACK_TIME_DESC);
910
911SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sack_freq, CTLTYPE_UINT | CTLFLAG_RW,
912    &SCTP_BASE_SYSCTL(sctp_sack_freq_default), 0, sysctl_sctp_check, "IU",
913    SCTPCTL_SACK_FREQ_DESC);
914
915SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, sys_resource, CTLTYPE_UINT | CTLFLAG_RW,
916    &SCTP_BASE_SYSCTL(sctp_system_free_resc_limit), 0, sysctl_sctp_check, "IU",
917    SCTPCTL_SYS_RESOURCE_DESC);
918
919SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, asoc_resource, CTLTYPE_UINT | CTLFLAG_RW,
920    &SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit), 0, sysctl_sctp_check, "IU",
921    SCTPCTL_ASOC_RESOURCE_DESC);
922
923SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, heartbeat_interval, CTLTYPE_UINT | CTLFLAG_RW,
924    &SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default), 0, sysctl_sctp_check, "IU",
925    SCTPCTL_HEARTBEAT_INTERVAL_DESC);
926
927SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, pmtu_raise_time, CTLTYPE_UINT | CTLFLAG_RW,
928    &SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default), 0, sysctl_sctp_check, "IU",
929    SCTPCTL_PMTU_RAISE_TIME_DESC);
930
931SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, shutdown_guard_time, CTLTYPE_UINT | CTLFLAG_RW,
932    &SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default), 0, sysctl_sctp_check, "IU",
933    SCTPCTL_SHUTDOWN_GUARD_TIME_DESC);
934
935SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, secret_lifetime, CTLTYPE_UINT | CTLFLAG_RW,
936    &SCTP_BASE_SYSCTL(sctp_secret_lifetime_default), 0, sysctl_sctp_check, "IU",
937    SCTPCTL_SECRET_LIFETIME_DESC);
938
939SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_max, CTLTYPE_UINT | CTLFLAG_RW,
940    &SCTP_BASE_SYSCTL(sctp_rto_max_default), 0, sysctl_sctp_check, "IU",
941    SCTPCTL_RTO_MAX_DESC);
942
943SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_min, CTLTYPE_UINT | CTLFLAG_RW,
944    &SCTP_BASE_SYSCTL(sctp_rto_min_default), 0, sysctl_sctp_check, "IU",
945    SCTPCTL_RTO_MIN_DESC);
946
947SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rto_initial, CTLTYPE_UINT | CTLFLAG_RW,
948    &SCTP_BASE_SYSCTL(sctp_rto_initial_default), 0, sysctl_sctp_check, "IU",
949    SCTPCTL_RTO_INITIAL_DESC);
950
951SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, init_rto_max, CTLTYPE_UINT | CTLFLAG_RW,
952    &SCTP_BASE_SYSCTL(sctp_init_rto_max_default), 0, sysctl_sctp_check, "IU",
953    SCTPCTL_INIT_RTO_MAX_DESC);
954
955SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, valid_cookie_life, CTLTYPE_UINT | CTLFLAG_RW,
956    &SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default), 0, sysctl_sctp_check, "IU",
957    SCTPCTL_VALID_COOKIE_LIFE_DESC);
958
959SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, init_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
960    &SCTP_BASE_SYSCTL(sctp_init_rtx_max_default), 0, sysctl_sctp_check, "IU",
961    SCTPCTL_INIT_RTX_MAX_DESC);
962
963SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, assoc_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
964    &SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default), 0, sysctl_sctp_check, "IU",
965    SCTPCTL_ASSOC_RTX_MAX_DESC);
966
967SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, path_rtx_max, CTLTYPE_UINT | CTLFLAG_RW,
968    &SCTP_BASE_SYSCTL(sctp_path_rtx_max_default), 0, sysctl_sctp_check, "IU",
969    SCTPCTL_PATH_RTX_MAX_DESC);
970
971SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, path_pf_threshold, CTLTYPE_UINT | CTLFLAG_RW,
972    &SCTP_BASE_SYSCTL(sctp_path_pf_threshold), 0, sysctl_sctp_check, "IU",
973    SCTPCTL_PATH_PF_THRESHOLD_DESC);
974
975SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, add_more_on_output, CTLTYPE_UINT | CTLFLAG_RW,
976    &SCTP_BASE_SYSCTL(sctp_add_more_threshold), 0, sysctl_sctp_check, "IU",
977    SCTPCTL_ADD_MORE_ON_OUTPUT_DESC);
978
979SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, incoming_streams, CTLTYPE_UINT | CTLFLAG_RW,
980    &SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default), 0, sysctl_sctp_check, "IU",
981    SCTPCTL_INCOMING_STREAMS_DESC);
982
983SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, outgoing_streams, CTLTYPE_UINT | CTLFLAG_RW,
984    &SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default), 0, sysctl_sctp_check, "IU",
985    SCTPCTL_OUTGOING_STREAMS_DESC);
986
987SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cmt_on_off, CTLTYPE_UINT | CTLFLAG_RW,
988    &SCTP_BASE_SYSCTL(sctp_cmt_on_off), 0, sysctl_sctp_check, "IU",
989    SCTPCTL_CMT_ON_OFF_DESC);
990
991SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nr_sack_on_off, CTLTYPE_UINT | CTLFLAG_RW,
992    &SCTP_BASE_SYSCTL(sctp_nr_sack_on_off), 0, sysctl_sctp_check, "IU",
993    SCTPCTL_NR_SACK_ON_OFF_DESC);
994
995SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cmt_use_dac, CTLTYPE_UINT | CTLFLAG_RW,
996    &SCTP_BASE_SYSCTL(sctp_cmt_use_dac), 0, sysctl_sctp_check, "IU",
997    SCTPCTL_CMT_USE_DAC_DESC);
998
999SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, cwnd_maxburst, CTLTYPE_UINT | CTLFLAG_RW,
1000    &SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst), 0, sysctl_sctp_check, "IU",
1001    SCTPCTL_CWND_MAXBURST_DESC);
1002
1003SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, asconf_auth_nochk, CTLTYPE_UINT | CTLFLAG_RW,
1004    &SCTP_BASE_SYSCTL(sctp_asconf_auth_nochk), 0, sysctl_sctp_check, "IU",
1005    SCTPCTL_ASCONF_AUTH_NOCHK_DESC);
1006
1007SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, auth_disable, CTLTYPE_UINT | CTLFLAG_RW,
1008    &SCTP_BASE_SYSCTL(sctp_auth_disable), 0, sysctl_sctp_check, "IU",
1009    SCTPCTL_AUTH_DISABLE_DESC);
1010
1011SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nat_friendly, CTLTYPE_UINT | CTLFLAG_RW,
1012    &SCTP_BASE_SYSCTL(sctp_nat_friendly), 0, sysctl_sctp_check, "IU",
1013    SCTPCTL_NAT_FRIENDLY_DESC);
1014
1015SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, abc_l_var, CTLTYPE_UINT | CTLFLAG_RW,
1016    &SCTP_BASE_SYSCTL(sctp_L2_abc_variable), 0, sysctl_sctp_check, "IU",
1017    SCTPCTL_ABC_L_VAR_DESC);
1018
1019SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, max_chained_mbufs, CTLTYPE_UINT | CTLFLAG_RW,
1020    &SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count), 0, sysctl_sctp_check, "IU",
1021    SCTPCTL_MAX_CHAINED_MBUFS_DESC);
1022
1023SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, do_sctp_drain, CTLTYPE_UINT | CTLFLAG_RW,
1024    &SCTP_BASE_SYSCTL(sctp_do_drain), 0, sysctl_sctp_check, "IU",
1025    SCTPCTL_DO_SCTP_DRAIN_DESC);
1026
1027SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, hb_max_burst, CTLTYPE_UINT | CTLFLAG_RW,
1028    &SCTP_BASE_SYSCTL(sctp_hb_maxburst), 0, sysctl_sctp_check, "IU",
1029    SCTPCTL_HB_MAX_BURST_DESC);
1030
1031SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, abort_at_limit, CTLTYPE_UINT | CTLFLAG_RW,
1032    &SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit), 0, sysctl_sctp_check, "IU",
1033    SCTPCTL_ABORT_AT_LIMIT_DESC);
1034
1035SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, strict_data_order, CTLTYPE_UINT | CTLFLAG_RW,
1036    &SCTP_BASE_SYSCTL(sctp_strict_data_order), 0, sysctl_sctp_check, "IU",
1037    SCTPCTL_STRICT_DATA_ORDER_DESC);
1038
1039SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, min_residual, CTLTYPE_UINT | CTLFLAG_RW,
1040    &SCTP_BASE_SYSCTL(sctp_min_residual), 0, sysctl_sctp_check, "IU",
1041    SCTPCTL_MIN_RESIDUAL_DESC);
1042
1043SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, max_retran_chunk, CTLTYPE_UINT | CTLFLAG_RW,
1044    &SCTP_BASE_SYSCTL(sctp_max_retran_chunk), 0, sysctl_sctp_check, "IU",
1045    SCTPCTL_MAX_RETRAN_CHUNK_DESC);
1046
1047SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, log_level, CTLTYPE_UINT | CTLFLAG_RW,
1048    &SCTP_BASE_SYSCTL(sctp_logging_level), 0, sysctl_sctp_check, "IU",
1049    SCTPCTL_LOGGING_LEVEL_DESC);
1050
1051SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_cc_module, CTLTYPE_UINT | CTLFLAG_RW,
1052    &SCTP_BASE_SYSCTL(sctp_default_cc_module), 0, sysctl_sctp_check, "IU",
1053    SCTPCTL_DEFAULT_CC_MODULE_DESC);
1054
1055SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_ss_module, CTLTYPE_UINT | CTLFLAG_RW,
1056    &SCTP_BASE_SYSCTL(sctp_default_ss_module), 0, sysctl_sctp_check, "IU",
1057    SCTPCTL_DEFAULT_SS_MODULE_DESC);
1058
1059SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, default_frag_interleave, CTLTYPE_UINT | CTLFLAG_RW,
1060    &SCTP_BASE_SYSCTL(sctp_default_frag_interleave), 0, sysctl_sctp_check, "IU",
1061    SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC);
1062
1063SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, mobility_base, CTLTYPE_UINT | CTLFLAG_RW,
1064    &SCTP_BASE_SYSCTL(sctp_mobility_base), 0, sysctl_sctp_check, "IU",
1065    SCTPCTL_MOBILITY_BASE_DESC);
1066
1067SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, mobility_fasthandoff, CTLTYPE_UINT | CTLFLAG_RW,
1068    &SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff), 0, sysctl_sctp_check, "IU",
1069    SCTPCTL_MOBILITY_FASTHANDOFF_DESC);
1070
1071#if defined(SCTP_LOCAL_TRACE_BUF)
1072SYSCTL_VNET_STRUCT(_net_inet_sctp, OID_AUTO, log, CTLFLAG_RD,
1073    &SCTP_BASE_SYSCTL(sctp_log), sctp_log,
1074    "SCTP logging (struct sctp_log)");
1075
1076SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLTYPE_UINT | CTLFLAG_RW,
1077    &SCTP_BASE_SYSCTL(sctp_log), 0, sysctl_sctp_cleartrace, "IU",
1078    "Clear SCTP Logging buffer");
1079#endif
1080
1081SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLTYPE_UINT | CTLFLAG_RW,
1082    &SCTP_BASE_SYSCTL(sctp_udp_tunneling_port), 0, sysctl_sctp_udp_tunneling_check, "IU",
1083    SCTPCTL_UDP_TUNNELING_PORT_DESC);
1084
1085SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, enable_sack_immediately, CTLTYPE_UINT | CTLFLAG_RW,
1086    &SCTP_BASE_SYSCTL(sctp_enable_sack_immediately), 0, sysctl_sctp_check, "IU",
1087    SCTPCTL_SACK_IMMEDIATELY_ENABLE_DESC);
1088
1089SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, nat_friendly_init, CTLTYPE_UINT | CTLFLAG_RW,
1090    &SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly), 0, sysctl_sctp_check, "IU",
1091    SCTPCTL_NAT_FRIENDLY_INITS_DESC);
1092
1093SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, vtag_time_wait, CTLTYPE_UINT | CTLFLAG_RW,
1094    &SCTP_BASE_SYSCTL(sctp_vtag_time_wait), 0, sysctl_sctp_check, "IU",
1095    SCTPCTL_TIME_WAIT_DESC);
1096
1097SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, buffer_splitting, CTLTYPE_UINT | CTLFLAG_RW,
1098    &SCTP_BASE_SYSCTL(sctp_buffer_splitting), 0, sysctl_sctp_check, "IU",
1099    SCTPCTL_BUFFER_SPLITTING_DESC);
1100
1101SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, initial_cwnd, CTLTYPE_UINT | CTLFLAG_RW,
1102    &SCTP_BASE_SYSCTL(sctp_initial_cwnd), 0, sysctl_sctp_check, "IU",
1103    SCTPCTL_INITIAL_CWND_DESC);
1104
1105SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_bw, CTLTYPE_UINT | CTLFLAG_RW,
1106    &SCTP_BASE_SYSCTL(sctp_rttvar_bw), 0, sysctl_sctp_check, "IU",
1107    SCTPCTL_RTTVAR_BW_DESC);
1108
1109SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_rtt, CTLTYPE_UINT | CTLFLAG_RW,
1110    &SCTP_BASE_SYSCTL(sctp_rttvar_rtt), 0, sysctl_sctp_check, "IU",
1111    SCTPCTL_RTTVAR_RTT_DESC);
1112
1113SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_eqret, CTLTYPE_UINT | CTLFLAG_RW,
1114    &SCTP_BASE_SYSCTL(sctp_rttvar_eqret), 0, sysctl_sctp_check, "IU",
1115    SCTPCTL_RTTVAR_EQRET_DESC);
1116
1117SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, rttvar_steady_step, CTLTYPE_UINT | CTLFLAG_RW,
1118    &SCTP_BASE_SYSCTL(sctp_steady_step), 0, sysctl_sctp_check, "IU",
1119    SCTPCTL_RTTVAR_STEADYS_DESC);
1120
1121SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, use_dcccecn, CTLTYPE_UINT | CTLFLAG_RW,
1122    &SCTP_BASE_SYSCTL(sctp_use_dccc_ecn), 0, sysctl_sctp_check, "IU",
1123    SCTPCTL_RTTVAR_DCCCECN_DESC);
1124
1125SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, blackhole, CTLTYPE_UINT | CTLFLAG_RW,
1126    &SCTP_BASE_SYSCTL(sctp_blackhole), 0, sysctl_sctp_check, "IU",
1127    SCTPCTL_BLACKHOLE_DESC);
1128
1129SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, diag_info_code, CTLTYPE_UINT | CTLFLAG_RW,
1130    &SCTP_BASE_SYSCTL(sctp_diag_info_code), 0, sysctl_sctp_check, "IU",
1131    SCTPCTL_DIAG_INFO_CODE_DESC);
1132
1133#ifdef SCTP_DEBUG
1134SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, debug, CTLTYPE_UINT | CTLFLAG_RW,
1135    &SCTP_BASE_SYSCTL(sctp_debug_on), 0, sysctl_sctp_check, "IU",
1136    SCTPCTL_DEBUG_DESC);
1137#endif
1138
1139
1140#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
1141SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, output_unlocked, CTLTYPE_UINT | CTLFLAG_RW,
1142    &SCTP_BASE_SYSCTL(sctp_output_unlocked), 0, sysctl_sctp_check, "IU",
1143    SCTPCTL_OUTPUT_UNLOCKED_DESC);
1144#endif
1145
1146#if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1147SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, stats,
1148    CTLTYPE_STRUCT | CTLFLAG_RW,
1149    0, 0, sysctl_stat_get, "S,sctpstat",
1150    "SCTP statistics (struct sctp_stat)");
1151#else
1152SYSCTL_VNET_STRUCT(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_RW,
1153    &SCTP_BASE_STATS_SYSCTL, sctpstat,
1154    "SCTP statistics (struct sctp_stat)");
1155#endif
1156
1157SYSCTL_VNET_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLTYPE_OPAQUE | CTLFLAG_RD,
1158    0, 0, sctp_assoclist,
1159    "S,xassoc", "List of active SCTP associations");
1160