1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 *
14 * b) Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the distribution.
17 *
18 * c) Neither the name of Cisco Systems, Inc. nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <netinet/sctp_os.h>
36 #include <netinet/sctp.h>
37 #include <netinet/sctp_constants.h>
38 #include <netinet/sctp_sysctl.h>
39 #include <netinet/sctp_pcb.h>
40 #include <netinet/sctputil.h>
41 #include <netinet/sctp_output.h>
42 #include <sys/smp.h>
43 #include <sys/sysctl.h>
44
45 FEATURE(sctp, "Stream Control Transmission Protocol");
46
47 /*
48 * sysctl tunable variables
49 */
50
51 void
sctp_init_sysctls(void)52 sctp_init_sysctls(void)
53 {
54 SCTP_BASE_SYSCTL(sctp_sendspace) = SCTPCTL_MAXDGRAM_DEFAULT;
55 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTPCTL_RECVSPACE_DEFAULT;
56 SCTP_BASE_SYSCTL(sctp_auto_asconf) = SCTPCTL_AUTOASCONF_DEFAULT;
57 SCTP_BASE_SYSCTL(sctp_multiple_asconfs) = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
58 SCTP_BASE_SYSCTL(sctp_ecn_enable) = SCTPCTL_ECN_ENABLE_DEFAULT;
59 SCTP_BASE_SYSCTL(sctp_pr_enable) = SCTPCTL_PR_ENABLE_DEFAULT;
60 SCTP_BASE_SYSCTL(sctp_auth_enable) = SCTPCTL_AUTH_ENABLE_DEFAULT;
61 SCTP_BASE_SYSCTL(sctp_asconf_enable) = SCTPCTL_ASCONF_ENABLE_DEFAULT;
62 SCTP_BASE_SYSCTL(sctp_reconfig_enable) = SCTPCTL_RECONFIG_ENABLE_DEFAULT;
63 SCTP_BASE_SYSCTL(sctp_nrsack_enable) = SCTPCTL_NRSACK_ENABLE_DEFAULT;
64 SCTP_BASE_SYSCTL(sctp_pktdrop_enable) = SCTPCTL_PKTDROP_ENABLE_DEFAULT;
65 SCTP_BASE_SYSCTL(sctp_peer_chunk_oh) = SCTPCTL_PEER_CHKOH_DEFAULT;
66 SCTP_BASE_SYSCTL(sctp_max_burst_default) = SCTPCTL_MAXBURST_DEFAULT;
67 SCTP_BASE_SYSCTL(sctp_fr_max_burst_default) = SCTPCTL_FRMAXBURST_DEFAULT;
68 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = SCTPCTL_MAXCHUNKS_DEFAULT;
69 SCTP_BASE_SYSCTL(sctp_hashtblsize) = SCTPCTL_TCBHASHSIZE_DEFAULT;
70 SCTP_BASE_SYSCTL(sctp_pcbtblsize) = SCTPCTL_PCBHASHSIZE_DEFAULT;
71 SCTP_BASE_SYSCTL(sctp_min_split_point) = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
72 SCTP_BASE_SYSCTL(sctp_chunkscale) = SCTPCTL_CHUNKSCALE_DEFAULT;
73 SCTP_BASE_SYSCTL(sctp_delayed_sack_time_default) = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
74 SCTP_BASE_SYSCTL(sctp_sack_freq_default) = SCTPCTL_SACK_FREQ_DEFAULT;
75 SCTP_BASE_SYSCTL(sctp_system_free_resc_limit) = SCTPCTL_SYS_RESOURCE_DEFAULT;
76 SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit) = SCTPCTL_ASOC_RESOURCE_DEFAULT;
77 SCTP_BASE_SYSCTL(sctp_heartbeat_interval_default) = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
78 SCTP_BASE_SYSCTL(sctp_pmtu_raise_time_default) = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
79 SCTP_BASE_SYSCTL(sctp_shutdown_guard_time_default) = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
80 SCTP_BASE_SYSCTL(sctp_secret_lifetime_default) = SCTPCTL_SECRET_LIFETIME_DEFAULT;
81 SCTP_BASE_SYSCTL(sctp_rto_max_default) = SCTPCTL_RTO_MAX_DEFAULT;
82 SCTP_BASE_SYSCTL(sctp_rto_min_default) = SCTPCTL_RTO_MIN_DEFAULT;
83 SCTP_BASE_SYSCTL(sctp_rto_initial_default) = SCTPCTL_RTO_INITIAL_DEFAULT;
84 SCTP_BASE_SYSCTL(sctp_init_rto_max_default) = SCTPCTL_INIT_RTO_MAX_DEFAULT;
85 SCTP_BASE_SYSCTL(sctp_valid_cookie_life_default) = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
86 SCTP_BASE_SYSCTL(sctp_init_rtx_max_default) = SCTPCTL_INIT_RTX_MAX_DEFAULT;
87 SCTP_BASE_SYSCTL(sctp_assoc_rtx_max_default) = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
88 SCTP_BASE_SYSCTL(sctp_path_rtx_max_default) = SCTPCTL_PATH_RTX_MAX_DEFAULT;
89 SCTP_BASE_SYSCTL(sctp_path_pf_threshold) = SCTPCTL_PATH_PF_THRESHOLD_DEFAULT;
90 SCTP_BASE_SYSCTL(sctp_add_more_threshold) = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
91 SCTP_BASE_SYSCTL(sctp_nr_incoming_streams_default) = SCTPCTL_INCOMING_STREAMS_DEFAULT;
92 SCTP_BASE_SYSCTL(sctp_nr_outgoing_streams_default) = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
93 SCTP_BASE_SYSCTL(sctp_cmt_on_off) = SCTPCTL_CMT_ON_OFF_DEFAULT;
94 SCTP_BASE_SYSCTL(sctp_cmt_use_dac) = SCTPCTL_CMT_USE_DAC_DEFAULT;
95 SCTP_BASE_SYSCTL(sctp_use_cwnd_based_maxburst) = SCTPCTL_CWND_MAXBURST_DEFAULT;
96 SCTP_BASE_SYSCTL(sctp_nat_friendly) = SCTPCTL_NAT_FRIENDLY_DEFAULT;
97 SCTP_BASE_SYSCTL(sctp_L2_abc_variable) = SCTPCTL_ABC_L_VAR_DEFAULT;
98 SCTP_BASE_SYSCTL(sctp_mbuf_threshold_count) = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
99 SCTP_BASE_SYSCTL(sctp_do_drain) = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
100 SCTP_BASE_SYSCTL(sctp_hb_maxburst) = SCTPCTL_HB_MAX_BURST_DEFAULT;
101 SCTP_BASE_SYSCTL(sctp_abort_if_one_2_one_hits_limit) = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
102 SCTP_BASE_SYSCTL(sctp_min_residual) = SCTPCTL_MIN_RESIDUAL_DEFAULT;
103 SCTP_BASE_SYSCTL(sctp_max_retran_chunk) = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
104 SCTP_BASE_SYSCTL(sctp_logging_level) = SCTPCTL_LOGGING_LEVEL_DEFAULT;
105 SCTP_BASE_SYSCTL(sctp_default_cc_module) = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
106 SCTP_BASE_SYSCTL(sctp_default_ss_module) = SCTPCTL_DEFAULT_SS_MODULE_DEFAULT;
107 SCTP_BASE_SYSCTL(sctp_default_frag_interleave) = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
108 SCTP_BASE_SYSCTL(sctp_mobility_base) = SCTPCTL_MOBILITY_BASE_DEFAULT;
109 SCTP_BASE_SYSCTL(sctp_mobility_fasthandoff) = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
110 SCTP_BASE_SYSCTL(sctp_vtag_time_wait) = SCTPCTL_TIME_WAIT_DEFAULT;
111 SCTP_BASE_SYSCTL(sctp_buffer_splitting) = SCTPCTL_BUFFER_SPLITTING_DEFAULT;
112 SCTP_BASE_SYSCTL(sctp_initial_cwnd) = SCTPCTL_INITIAL_CWND_DEFAULT;
113 SCTP_BASE_SYSCTL(sctp_rttvar_bw) = SCTPCTL_RTTVAR_BW_DEFAULT;
114 SCTP_BASE_SYSCTL(sctp_rttvar_rtt) = SCTPCTL_RTTVAR_RTT_DEFAULT;
115 SCTP_BASE_SYSCTL(sctp_rttvar_eqret) = SCTPCTL_RTTVAR_EQRET_DEFAULT;
116 SCTP_BASE_SYSCTL(sctp_steady_step) = SCTPCTL_RTTVAR_STEADYS_DEFAULT;
117 SCTP_BASE_SYSCTL(sctp_use_dccc_ecn) = SCTPCTL_RTTVAR_DCCCECN_DEFAULT;
118 SCTP_BASE_SYSCTL(sctp_blackhole) = SCTPCTL_BLACKHOLE_DEFAULT;
119 SCTP_BASE_SYSCTL(sctp_sendall_limit) = SCTPCTL_SENDALL_LIMIT_DEFAULT;
120 SCTP_BASE_SYSCTL(sctp_diag_info_code) = SCTPCTL_DIAG_INFO_CODE_DEFAULT;
121 SCTP_BASE_SYSCTL(sctp_ootb_with_zero_cksum) = SCTPCTL_OOTB_WITH_ZERO_CKSUM_DEFAULT;
122 #if defined(SCTP_LOCAL_TRACE_BUF)
123 memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
124 #endif
125 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
126 SCTP_BASE_SYSCTL(sctp_enable_sack_immediately) = SCTPCTL_SACK_IMMEDIATELY_ENABLE_DEFAULT;
127 SCTP_BASE_SYSCTL(sctp_inits_include_nat_friendly) = SCTPCTL_NAT_FRIENDLY_INITS_DEFAULT;
128 #if defined(SCTP_DEBUG)
129 SCTP_BASE_SYSCTL(sctp_debug_on) = SCTPCTL_DEBUG_DEFAULT;
130 #endif
131 }
132
133 /* It returns an upper limit. No filtering is done here */
134 static unsigned int
sctp_sysctl_number_of_addresses(struct sctp_inpcb * inp)135 sctp_sysctl_number_of_addresses(struct sctp_inpcb *inp)
136 {
137 unsigned int cnt;
138 struct sctp_vrf *vrf;
139 struct sctp_ifn *sctp_ifn;
140 struct sctp_ifa *sctp_ifa;
141 struct sctp_laddr *laddr;
142
143 cnt = 0;
144 /* neither Mac OS X nor FreeBSD support multiple routing functions */
145 if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
146 return (0);
147 }
148 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
149 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
150 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
151 switch (sctp_ifa->address.sa.sa_family) {
152 #ifdef INET
153 case AF_INET:
154 #endif
155 #ifdef INET6
156 case AF_INET6:
157 #endif
158 cnt++;
159 break;
160 default:
161 break;
162 }
163 }
164 }
165 } else {
166 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
167 switch (laddr->ifa->address.sa.sa_family) {
168 #ifdef INET
169 case AF_INET:
170 #endif
171 #ifdef INET6
172 case AF_INET6:
173 #endif
174 cnt++;
175 break;
176 default:
177 break;
178 }
179 }
180 }
181 return (cnt);
182 }
183
184 static int
sctp_sysctl_copy_out_local_addresses(struct sctp_inpcb * inp,struct sctp_tcb * stcb,struct sysctl_req * req)185 sctp_sysctl_copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
186 {
187 struct sctp_ifn *sctp_ifn;
188 struct sctp_ifa *sctp_ifa;
189 int loopback_scope;
190 #ifdef INET
191 int ipv4_local_scope;
192 int ipv4_addr_legal;
193 #endif
194 #ifdef INET6
195 int local_scope, site_scope;
196 int ipv6_addr_legal;
197 #endif
198 struct sctp_vrf *vrf;
199 struct xsctp_laddr xladdr;
200 struct sctp_laddr *laddr;
201 int error;
202
203 /* Turn on all the appropriate scope */
204 if (stcb != NULL) {
205 /* use association specific values */
206 loopback_scope = stcb->asoc.scope.loopback_scope;
207 #ifdef INET
208 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
209 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
210 #endif
211 #ifdef INET6
212 local_scope = stcb->asoc.scope.local_scope;
213 site_scope = stcb->asoc.scope.site_scope;
214 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
215 #endif
216 } else {
217 /* Use generic values for endpoints. */
218 loopback_scope = 1;
219 #ifdef INET
220 ipv4_local_scope = 1;
221 #endif
222 #ifdef INET6
223 local_scope = 1;
224 site_scope = 1;
225 #endif
226 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
227 #ifdef INET6
228 ipv6_addr_legal = 1;
229 #endif
230 #ifdef INET
231 if (SCTP_IPV6_V6ONLY(inp)) {
232 ipv4_addr_legal = 0;
233 } else {
234 ipv4_addr_legal = 1;
235 }
236 #endif
237 } else {
238 #ifdef INET6
239 ipv6_addr_legal = 0;
240 #endif
241 #ifdef INET
242 ipv4_addr_legal = 1;
243 #endif
244 }
245 }
246
247 /* Neither Mac OS X nor FreeBSD support multiple routing functions. */
248 if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
249 SCTP_INP_RUNLOCK(inp);
250 SCTP_INP_INFO_RUNLOCK();
251 return (ENOENT);
252 }
253 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
254 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
255 if ((loopback_scope == 0) && SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
256 /* Skip loopback if loopback_scope not set. */
257 continue;
258 }
259 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
260 if (stcb != NULL) {
261 /*
262 * Ignore if blacklisted at
263 * association level.
264 */
265 if (sctp_is_addr_restricted(stcb, sctp_ifa)) {
266 continue;
267 }
268 } else {
269 if (sctp_ifa->localifa_flags & SCTP_ADDR_IFA_UNUSEABLE) {
270 continue;
271 }
272 }
273 switch (sctp_ifa->address.sa.sa_family) {
274 #ifdef INET
275 case AF_INET:
276 if (ipv4_addr_legal) {
277 struct sockaddr_in *sin;
278
279 sin = &sctp_ifa->address.sin;
280 if (sin->sin_addr.s_addr == 0) {
281 continue;
282 }
283 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
284 &sin->sin_addr) != 0) {
285 continue;
286 }
287 if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
288 continue;
289 }
290 } else {
291 continue;
292 }
293 break;
294 #endif
295 #ifdef INET6
296 case AF_INET6:
297 if (ipv6_addr_legal) {
298 struct sockaddr_in6 *sin6;
299
300 sin6 = &sctp_ifa->address.sin6;
301 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
302 continue;
303 }
304 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
305 &sin6->sin6_addr) != 0) {
306 continue;
307 }
308 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
309 if (local_scope == 0) {
310 continue;
311 }
312 }
313 if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
314 continue;
315 }
316 } else {
317 continue;
318 }
319 break;
320 #endif
321 default:
322 continue;
323 }
324 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
325 memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
326 SCTP_INP_RUNLOCK(inp);
327 SCTP_INP_INFO_RUNLOCK();
328 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
329 if (error != 0) {
330 return (error);
331 } else {
332 SCTP_INP_INFO_RLOCK();
333 SCTP_INP_RLOCK(inp);
334 }
335 }
336 }
337 } else {
338 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
339 /* ignore if blacklisted at association level */
340 if (stcb != NULL && sctp_is_addr_restricted(stcb, laddr->ifa))
341 continue;
342 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
343 memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
344 xladdr.start_time.tv_sec = (uint32_t)laddr->start_time.tv_sec;
345 xladdr.start_time.tv_usec = (uint32_t)laddr->start_time.tv_usec;
346 SCTP_INP_RUNLOCK(inp);
347 SCTP_INP_INFO_RUNLOCK();
348 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
349 if (error != 0) {
350 return (error);
351 } else {
352 SCTP_INP_INFO_RLOCK();
353 SCTP_INP_RLOCK(inp);
354 }
355 }
356 }
357 memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
358 xladdr.last = 1;
359 SCTP_INP_RUNLOCK(inp);
360 SCTP_INP_INFO_RUNLOCK();
361 error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
362
363 if (error != 0) {
364 return (error);
365 } else {
366 SCTP_INP_INFO_RLOCK();
367 SCTP_INP_RLOCK(inp);
368 return (0);
369 }
370 }
371
372 /*
373 * sysctl functions
374 */
375 static int
sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)376 sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)
377 {
378 unsigned int number_of_endpoints;
379 unsigned int number_of_local_addresses;
380 unsigned int number_of_associations;
381 unsigned int number_of_remote_addresses;
382 unsigned int n;
383 int error;
384 struct sctp_inpcb *inp;
385 struct sctp_tcb *stcb;
386 struct sctp_nets *net;
387 struct xsctp_inpcb xinpcb;
388 struct xsctp_tcb xstcb;
389 struct xsctp_raddr xraddr;
390 struct socket *so;
391
392 number_of_endpoints = 0;
393 number_of_local_addresses = 0;
394 number_of_associations = 0;
395 number_of_remote_addresses = 0;
396
397 SCTP_INP_INFO_RLOCK();
398 if (req->oldptr == NULL) {
399 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
400 SCTP_INP_RLOCK(inp);
401 number_of_endpoints++;
402 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
403 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
404 number_of_associations++;
405 number_of_local_addresses += sctp_sysctl_number_of_addresses(inp);
406 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
407 number_of_remote_addresses++;
408 }
409 }
410 SCTP_INP_RUNLOCK(inp);
411 }
412 SCTP_INP_INFO_RUNLOCK();
413 n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
414 (number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
415 (number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
416 (number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
417
418 /* request some more memory than needed */
419 req->oldidx = (n + n / 8);
420 return (0);
421 }
422 if (req->newptr != NULL) {
423 SCTP_INP_INFO_RUNLOCK();
424 SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
425 return (EPERM);
426 }
427 memset(&xinpcb, 0, sizeof(xinpcb));
428 memset(&xstcb, 0, sizeof(xstcb));
429 memset(&xraddr, 0, sizeof(xraddr));
430 LIST_FOREACH(inp, &SCTP_BASE_INFO(listhead), sctp_list) {
431 SCTP_INP_RLOCK(inp);
432 if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) {
433 /* if its allgone it is being freed - skip it */
434 goto skip;
435 }
436 xinpcb.last = 0;
437 xinpcb.local_port = ntohs(inp->sctp_lport);
438 xinpcb.flags = inp->sctp_flags;
439 xinpcb.features = inp->sctp_features;
440 xinpcb.total_sends = inp->total_sends;
441 xinpcb.total_recvs = inp->total_recvs;
442 xinpcb.total_nospaces = inp->total_nospaces;
443 xinpcb.fragmentation_point = inp->sctp_frag_point;
444 xinpcb.socket = (uintptr_t)inp->sctp_socket;
445 so = inp->sctp_socket;
446 if ((so == NULL) ||
447 (!SCTP_IS_LISTENING(inp)) ||
448 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
449 xinpcb.qlen = 0;
450 xinpcb.maxqlen = 0;
451 } else {
452 xinpcb.qlen = so->sol_qlen;
453 xinpcb.qlen_old = so->sol_qlen > USHRT_MAX ?
454 USHRT_MAX : (uint16_t)so->sol_qlen;
455 xinpcb.maxqlen = so->sol_qlimit;
456 xinpcb.maxqlen_old = so->sol_qlimit > USHRT_MAX ?
457 USHRT_MAX : (uint16_t)so->sol_qlimit;
458 }
459 SCTP_INP_INCR_REF(inp);
460 SCTP_INP_RUNLOCK(inp);
461 SCTP_INP_INFO_RUNLOCK();
462 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
463 if (error) {
464 SCTP_INP_DECR_REF(inp);
465 return (error);
466 }
467 SCTP_INP_INFO_RLOCK();
468 SCTP_INP_RLOCK(inp);
469 error = sctp_sysctl_copy_out_local_addresses(inp, NULL, req);
470 if (error) {
471 SCTP_INP_DECR_REF(inp);
472 return (error);
473 }
474 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
475 SCTP_TCB_LOCK(stcb);
476 atomic_add_int(&stcb->asoc.refcnt, 1);
477 SCTP_TCB_UNLOCK(stcb);
478 xstcb.last = 0;
479 xstcb.local_port = ntohs(inp->sctp_lport);
480 xstcb.remote_port = ntohs(stcb->rport);
481 if (stcb->asoc.primary_destination != NULL)
482 xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
483 xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
484 xstcb.state = (uint32_t)sctp_map_assoc_state(stcb->asoc.state);
485 xstcb.assoc_id = sctp_get_associd(stcb);
486 xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
487 xstcb.in_streams = stcb->asoc.streamincnt;
488 xstcb.out_streams = stcb->asoc.streamoutcnt;
489 xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
490 xstcb.primary_process = 0; /* not really supported
491 * yet */
492 xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
493 xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
494 xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
495 xstcb.start_time.tv_sec = (uint32_t)stcb->asoc.start_time.tv_sec;
496 xstcb.start_time.tv_usec = (uint32_t)stcb->asoc.start_time.tv_usec;
497 xstcb.discontinuity_time.tv_sec = (uint32_t)stcb->asoc.discontinuity_time.tv_sec;
498 xstcb.discontinuity_time.tv_usec = (uint32_t)stcb->asoc.discontinuity_time.tv_usec;
499 xstcb.total_sends = stcb->total_sends;
500 xstcb.total_recvs = stcb->total_recvs;
501 xstcb.local_tag = stcb->asoc.my_vtag;
502 xstcb.remote_tag = stcb->asoc.peer_vtag;
503 xstcb.initial_tsn = stcb->asoc.init_seq_number;
504 xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
505 xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
506 xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
507 xstcb.mtu = stcb->asoc.smallest_mtu;
508 xstcb.refcnt = stcb->asoc.refcnt;
509 SCTP_INP_RUNLOCK(inp);
510 SCTP_INP_INFO_RUNLOCK();
511 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
512 if (error) {
513 SCTP_INP_DECR_REF(inp);
514 atomic_subtract_int(&stcb->asoc.refcnt, 1);
515 return (error);
516 }
517 SCTP_INP_INFO_RLOCK();
518 SCTP_INP_RLOCK(inp);
519 error = sctp_sysctl_copy_out_local_addresses(inp, stcb, req);
520 if (error) {
521 SCTP_INP_DECR_REF(inp);
522 atomic_subtract_int(&stcb->asoc.refcnt, 1);
523 return (error);
524 }
525 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
526 xraddr.last = 0;
527 xraddr.address = net->ro._l_addr;
528 xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
529 xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
530 xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
531 xraddr.potentially_failed = ((net->dest_state & SCTP_ADDR_PF) == SCTP_ADDR_PF);
532 xraddr.rto = net->RTO;
533 xraddr.max_path_rtx = net->failure_threshold;
534 xraddr.rtx = net->marked_retrans;
535 xraddr.error_counter = net->error_count;
536 xraddr.cwnd = net->cwnd;
537 xraddr.flight_size = net->flight_size;
538 xraddr.mtu = net->mtu;
539 xraddr.rtt = net->rtt / 1000;
540 xraddr.heartbeat_interval = net->heart_beat_delay;
541 xraddr.ssthresh = net->ssthresh;
542 xraddr.encaps_port = net->port;
543 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
544 xraddr.state = SCTP_UNCONFIRMED;
545 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
546 xraddr.state = SCTP_ACTIVE;
547 } else {
548 xraddr.state = SCTP_INACTIVE;
549 }
550 xraddr.start_time.tv_sec = (uint32_t)net->start_time.tv_sec;
551 xraddr.start_time.tv_usec = (uint32_t)net->start_time.tv_usec;
552 SCTP_INP_RUNLOCK(inp);
553 SCTP_INP_INFO_RUNLOCK();
554 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
555 if (error) {
556 SCTP_INP_DECR_REF(inp);
557 atomic_subtract_int(&stcb->asoc.refcnt, 1);
558 return (error);
559 }
560 SCTP_INP_INFO_RLOCK();
561 SCTP_INP_RLOCK(inp);
562 }
563 atomic_subtract_int(&stcb->asoc.refcnt, 1);
564 memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
565 xraddr.last = 1;
566 SCTP_INP_RUNLOCK(inp);
567 SCTP_INP_INFO_RUNLOCK();
568 error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
569 if (error) {
570 SCTP_INP_DECR_REF(inp);
571 return (error);
572 }
573 SCTP_INP_INFO_RLOCK();
574 SCTP_INP_RLOCK(inp);
575 }
576 SCTP_INP_DECR_REF(inp);
577 SCTP_INP_RUNLOCK(inp);
578 SCTP_INP_INFO_RUNLOCK();
579 memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
580 xstcb.last = 1;
581 error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
582 if (error) {
583 return (error);
584 }
585 skip:
586 SCTP_INP_INFO_RLOCK();
587 }
588 SCTP_INP_INFO_RUNLOCK();
589
590 memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
591 xinpcb.last = 1;
592 error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
593 return (error);
594 }
595
596 static int
sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS)597 sctp_sysctl_handle_udp_tunneling(SYSCTL_HANDLER_ARGS)
598 {
599 int error;
600 uint32_t old, new;
601
602 SCTP_INP_INFO_RLOCK();
603 old = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port);
604 SCTP_INP_INFO_RUNLOCK();
605 new = old;
606 error = sysctl_handle_int(oidp, &new, 0, req);
607 if ((error == 0) &&
608 (req->newptr != NULL)) {
609 #if (SCTPCTL_UDP_TUNNELING_PORT_MIN == 0)
610 if (new > SCTPCTL_UDP_TUNNELING_PORT_MAX) {
611 #else
612 if ((new < SCTPCTL_UDP_TUNNELING_PORT_MIN) ||
613 (new > SCTPCTL_UDP_TUNNELING_PORT_MAX)) {
614 #endif
615 error = EINVAL;
616 } else {
617 SCTP_INP_INFO_WLOCK();
618 SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = new;
619 if (old != 0) {
620 sctp_over_udp_stop();
621 }
622 if (new != 0) {
623 error = sctp_over_udp_start();
624 }
625 SCTP_INP_INFO_WUNLOCK();
626 }
627 }
628 return (error);
629 }
630
631 static int
632 sctp_sysctl_handle_auth(SYSCTL_HANDLER_ARGS)
633 {
634 int error;
635 uint32_t new;
636
637 new = SCTP_BASE_SYSCTL(sctp_auth_enable);
638 error = sysctl_handle_int(oidp, &new, 0, req);
639 if ((error == 0) &&
640 (req->newptr != NULL)) {
641 #if (SCTPCTL_AUTH_ENABLE_MIN == 0)
642 if ((new > SCTPCTL_AUTH_ENABLE_MAX) ||
643 ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
644 #else
645 if ((new < SCTPCTL_AUTH_ENABLE_MIN) ||
646 (new > SCTPCTL_AUTH_ENABLE_MAX) ||
647 ((new == 0) && (SCTP_BASE_SYSCTL(sctp_asconf_enable) == 1))) {
648 #endif
649 error = EINVAL;
650 } else {
651 SCTP_BASE_SYSCTL(sctp_auth_enable) = new;
652 }
653 }
654 return (error);
655 }
656
657 static int
658 sctp_sysctl_handle_asconf(SYSCTL_HANDLER_ARGS)
659 {
660 int error;
661 uint32_t new;
662
663 new = SCTP_BASE_SYSCTL(sctp_asconf_enable);
664 error = sysctl_handle_int(oidp, &new, 0, req);
665 if ((error == 0) &&
666 (req->newptr != NULL)) {
667 #if (SCTPCTL_ASCONF_ENABLE_MIN == 0)
668 if ((new > SCTPCTL_ASCONF_ENABLE_MAX) ||
669 ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
670 #else
671 if ((new < SCTPCTL_ASCONF_ENABLE_MIN) ||
672 (new > SCTPCTL_ASCONF_ENABLE_MAX) ||
673 ((new == 1) && (SCTP_BASE_SYSCTL(sctp_auth_enable) == 0))) {
674 #endif
675 error = EINVAL;
676 } else {
677 SCTP_BASE_SYSCTL(sctp_asconf_enable) = new;
678 }
679 }
680 return (error);
681 }
682
683 static int
684 sctp_sysctl_handle_stats(SYSCTL_HANDLER_ARGS)
685 {
686 int error;
687 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
688 struct sctpstat *sarry;
689 struct sctpstat sb;
690 int cpu;
691 #endif
692 struct sctpstat sb_temp;
693
694 if ((req->newptr != NULL) &&
695 (req->newlen != sizeof(struct sctpstat))) {
696 return (EINVAL);
697 }
698 memset(&sb_temp, 0, sizeof(struct sctpstat));
699
700 if (req->newptr != NULL) {
701 error = SYSCTL_IN(req, &sb_temp, sizeof(struct sctpstat));
702 if (error != 0) {
703 return (error);
704 }
705 }
706 #if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
707 memset(&sb, 0, sizeof(sb));
708 for (cpu = 0; cpu < mp_maxid; cpu++) {
709 sarry = &SCTP_BASE_STATS[cpu];
710 if (sarry->sctps_discontinuitytime.tv_sec > sb.sctps_discontinuitytime.tv_sec) {
711 sb.sctps_discontinuitytime.tv_sec = sarry->sctps_discontinuitytime.tv_sec;
712 sb.sctps_discontinuitytime.tv_usec = sarry->sctps_discontinuitytime.tv_usec;
713 }
714 sb.sctps_currestab += sarry->sctps_currestab;
715 sb.sctps_activeestab += sarry->sctps_activeestab;
716 sb.sctps_restartestab += sarry->sctps_restartestab;
717 sb.sctps_collisionestab += sarry->sctps_collisionestab;
718 sb.sctps_passiveestab += sarry->sctps_passiveestab;
719 sb.sctps_aborted += sarry->sctps_aborted;
720 sb.sctps_shutdown += sarry->sctps_shutdown;
721 sb.sctps_outoftheblue += sarry->sctps_outoftheblue;
722 sb.sctps_checksumerrors += sarry->sctps_checksumerrors;
723 sb.sctps_outcontrolchunks += sarry->sctps_outcontrolchunks;
724 sb.sctps_outorderchunks += sarry->sctps_outorderchunks;
725 sb.sctps_outunorderchunks += sarry->sctps_outunorderchunks;
726 sb.sctps_incontrolchunks += sarry->sctps_incontrolchunks;
727 sb.sctps_inorderchunks += sarry->sctps_inorderchunks;
728 sb.sctps_inunorderchunks += sarry->sctps_inunorderchunks;
729 sb.sctps_fragusrmsgs += sarry->sctps_fragusrmsgs;
730 sb.sctps_reasmusrmsgs += sarry->sctps_reasmusrmsgs;
731 sb.sctps_outpackets += sarry->sctps_outpackets;
732 sb.sctps_inpackets += sarry->sctps_inpackets;
733 sb.sctps_recvpackets += sarry->sctps_recvpackets;
734 sb.sctps_recvdatagrams += sarry->sctps_recvdatagrams;
735 sb.sctps_recvpktwithdata += sarry->sctps_recvpktwithdata;
736 sb.sctps_recvsacks += sarry->sctps_recvsacks;
737 sb.sctps_recvdata += sarry->sctps_recvdata;
738 sb.sctps_recvdupdata += sarry->sctps_recvdupdata;
739 sb.sctps_recvheartbeat += sarry->sctps_recvheartbeat;
740 sb.sctps_recvheartbeatack += sarry->sctps_recvheartbeatack;
741 sb.sctps_recvecne += sarry->sctps_recvecne;
742 sb.sctps_recvauth += sarry->sctps_recvauth;
743 sb.sctps_recvauthmissing += sarry->sctps_recvauthmissing;
744 sb.sctps_recvivalhmacid += sarry->sctps_recvivalhmacid;
745 sb.sctps_recvivalkeyid += sarry->sctps_recvivalkeyid;
746 sb.sctps_recvauthfailed += sarry->sctps_recvauthfailed;
747 sb.sctps_recvexpress += sarry->sctps_recvexpress;
748 sb.sctps_recvexpressm += sarry->sctps_recvexpressm;
749 sb.sctps_recvswcrc += sarry->sctps_recvswcrc;
750 sb.sctps_recvhwcrc += sarry->sctps_recvhwcrc;
751 sb.sctps_sendpackets += sarry->sctps_sendpackets;
752 sb.sctps_sendsacks += sarry->sctps_sendsacks;
753 sb.sctps_senddata += sarry->sctps_senddata;
754 sb.sctps_sendretransdata += sarry->sctps_sendretransdata;
755 sb.sctps_sendfastretrans += sarry->sctps_sendfastretrans;
756 sb.sctps_sendmultfastretrans += sarry->sctps_sendmultfastretrans;
757 sb.sctps_sendheartbeat += sarry->sctps_sendheartbeat;
758 sb.sctps_sendecne += sarry->sctps_sendecne;
759 sb.sctps_sendauth += sarry->sctps_sendauth;
760 sb.sctps_senderrors += sarry->sctps_senderrors;
761 sb.sctps_sendswcrc += sarry->sctps_sendswcrc;
762 sb.sctps_sendhwcrc += sarry->sctps_sendhwcrc;
763 sb.sctps_pdrpfmbox += sarry->sctps_pdrpfmbox;
764 sb.sctps_pdrpfehos += sarry->sctps_pdrpfehos;
765 sb.sctps_pdrpmbda += sarry->sctps_pdrpmbda;
766 sb.sctps_pdrpmbct += sarry->sctps_pdrpmbct;
767 sb.sctps_pdrpbwrpt += sarry->sctps_pdrpbwrpt;
768 sb.sctps_pdrpcrupt += sarry->sctps_pdrpcrupt;
769 sb.sctps_pdrpnedat += sarry->sctps_pdrpnedat;
770 sb.sctps_pdrppdbrk += sarry->sctps_pdrppdbrk;
771 sb.sctps_pdrptsnnf += sarry->sctps_pdrptsnnf;
772 sb.sctps_pdrpdnfnd += sarry->sctps_pdrpdnfnd;
773 sb.sctps_pdrpdiwnp += sarry->sctps_pdrpdiwnp;
774 sb.sctps_pdrpdizrw += sarry->sctps_pdrpdizrw;
775 sb.sctps_pdrpbadd += sarry->sctps_pdrpbadd;
776 sb.sctps_pdrpmark += sarry->sctps_pdrpmark;
777 sb.sctps_timoiterator += sarry->sctps_timoiterator;
778 sb.sctps_timodata += sarry->sctps_timodata;
779 sb.sctps_timowindowprobe += sarry->sctps_timowindowprobe;
780 sb.sctps_timoinit += sarry->sctps_timoinit;
781 sb.sctps_timosack += sarry->sctps_timosack;
782 sb.sctps_timoshutdown += sarry->sctps_timoshutdown;
783 sb.sctps_timoheartbeat += sarry->sctps_timoheartbeat;
784 sb.sctps_timocookie += sarry->sctps_timocookie;
785 sb.sctps_timosecret += sarry->sctps_timosecret;
786 sb.sctps_timopathmtu += sarry->sctps_timopathmtu;
787 sb.sctps_timoshutdownack += sarry->sctps_timoshutdownack;
788 sb.sctps_timoshutdownguard += sarry->sctps_timoshutdownguard;
789 sb.sctps_timostrmrst += sarry->sctps_timostrmrst;
790 sb.sctps_timoearlyfr += sarry->sctps_timoearlyfr;
791 sb.sctps_timoasconf += sarry->sctps_timoasconf;
792 sb.sctps_timodelprim += sarry->sctps_timodelprim;
793 sb.sctps_timoautoclose += sarry->sctps_timoautoclose;
794 sb.sctps_timoassockill += sarry->sctps_timoassockill;
795 sb.sctps_timoinpkill += sarry->sctps_timoinpkill;
796 sb.sctps_hdrops += sarry->sctps_hdrops;
797 sb.sctps_badsum += sarry->sctps_badsum;
798 sb.sctps_noport += sarry->sctps_noport;
799 sb.sctps_badvtag += sarry->sctps_badvtag;
800 sb.sctps_badsid += sarry->sctps_badsid;
801 sb.sctps_nomem += sarry->sctps_nomem;
802 sb.sctps_fastretransinrtt += sarry->sctps_fastretransinrtt;
803 sb.sctps_markedretrans += sarry->sctps_markedretrans;
804 sb.sctps_naglesent += sarry->sctps_naglesent;
805 sb.sctps_naglequeued += sarry->sctps_naglequeued;
806 sb.sctps_maxburstqueued += sarry->sctps_maxburstqueued;
807 sb.sctps_ifnomemqueued += sarry->sctps_ifnomemqueued;
808 sb.sctps_windowprobed += sarry->sctps_windowprobed;
809 sb.sctps_lowlevelerr += sarry->sctps_lowlevelerr;
810 sb.sctps_lowlevelerrusr += sarry->sctps_lowlevelerrusr;
811 sb.sctps_datadropchklmt += sarry->sctps_datadropchklmt;
812 sb.sctps_datadroprwnd += sarry->sctps_datadroprwnd;
813 sb.sctps_ecnereducedcwnd += sarry->sctps_ecnereducedcwnd;
814 sb.sctps_vtagexpress += sarry->sctps_vtagexpress;
815 sb.sctps_vtagbogus += sarry->sctps_vtagbogus;
816 sb.sctps_primary_randry += sarry->sctps_primary_randry;
817 sb.sctps_cmt_randry += sarry->sctps_cmt_randry;
818 sb.sctps_slowpath_sack += sarry->sctps_slowpath_sack;
819 sb.sctps_wu_sacks_sent += sarry->sctps_wu_sacks_sent;
820 sb.sctps_sends_with_flags += sarry->sctps_sends_with_flags;
821 sb.sctps_sends_with_unord += sarry->sctps_sends_with_unord;
822 sb.sctps_sends_with_eof += sarry->sctps_sends_with_eof;
823 sb.sctps_sends_with_abort += sarry->sctps_sends_with_abort;
824 sb.sctps_protocol_drain_calls += sarry->sctps_protocol_drain_calls;
825 sb.sctps_protocol_drains_done += sarry->sctps_protocol_drains_done;
826 sb.sctps_read_peeks += sarry->sctps_read_peeks;
827 sb.sctps_cached_chk += sarry->sctps_cached_chk;
828 sb.sctps_cached_strmoq += sarry->sctps_cached_strmoq;
829 sb.sctps_left_abandon += sarry->sctps_left_abandon;
830 sb.sctps_send_burst_avoid += sarry->sctps_send_burst_avoid;
831 sb.sctps_send_cwnd_avoid += sarry->sctps_send_cwnd_avoid;
832 sb.sctps_fwdtsn_map_over += sarry->sctps_fwdtsn_map_over;
833 sb.sctps_queue_upd_ecne += sarry->sctps_queue_upd_ecne;
834 sb.sctps_recvzerocrc += sarry->sctps_recvzerocrc;
835 sb.sctps_sendzerocrc += sarry->sctps_sendzerocrc;
836 if (req->newptr != NULL) {
837 memcpy(sarry, &sb_temp, sizeof(struct sctpstat));
838 }
839 }
840 error = SYSCTL_OUT(req, &sb, sizeof(struct sctpstat));
841 #else
842 error = SYSCTL_OUT(req, &SCTP_BASE_STATS, sizeof(struct sctpstat));
843 if (error != 0) {
844 return (error);
845 }
846 if (req->newptr != NULL) {
847 memcpy(&SCTP_BASE_STATS, &sb_temp, sizeof(struct sctpstat));
848 }
849 #endif
850 return (error);
851 }
852
853 #if defined(SCTP_LOCAL_TRACE_BUF)
854 static int
855 sctp_sysctl_handle_trace_log(SYSCTL_HANDLER_ARGS)
856 {
857 int error;
858
859 error = SYSCTL_OUT(req, &SCTP_BASE_SYSCTL(sctp_log), sizeof(struct sctp_log));
860 return (error);
861 }
862
863 static int
864 sctp_sysctl_handle_trace_log_clear(SYSCTL_HANDLER_ARGS)
865 {
866 int error = 0;
867
868 memset(&SCTP_BASE_SYSCTL(sctp_log), 0, sizeof(struct sctp_log));
869 return (error);
870 }
871 #endif
872
873 #define SCTP_UINT_SYSCTL(mib_name, var_name, prefix) \
874 SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, \
875 CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RW)
876
877 #define SCTP_UINT_SYSCTL_TUN(mib_name, var_name, prefix) \
878 SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, \
879 CTLFLAG_VNET|CTLTYPE_UINT|CTLFLAG_RWTUN|CTLFLAG_NOFETCH)
880
881 #define SCTP_UINT_SYSCTL_FLAG(mib_name, var_name, prefix, flags) \
882 static int \
883 sctp_sysctl_handle_##mib_name(SYSCTL_HANDLER_ARGS) \
884 { \
885 int error; \
886 uint32_t new; \
887 \
888 new = SCTP_BASE_SYSCTL(var_name); \
889 error = sysctl_handle_int(oidp, &new, 0, req); \
890 if ((error == 0) && (req->newptr != NULL)) { \
891 if ((new < prefix##_MIN) || \
892 (new > prefix##_MAX)) { \
893 error = EINVAL; \
894 } else { \
895 SCTP_BASE_SYSCTL(var_name) = new; \
896 } \
897 } \
898 return (error); \
899 } \
900 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mib_name, flags, NULL, 0, \
901 sctp_sysctl_handle_##mib_name, "IU", prefix##_DESC)
902
903 #define SCTP_UINT_SYSCTL_RDTUN(mib_name, var_name, prefix) \
904 SYSCTL_UINT(_net_inet_sctp, OID_AUTO, mib_name, \
905 CTLFLAG_VNET|CTLFLAG_RDTUN|CTLFLAG_NOFETCH, \
906 &VNET_NAME(system_base_info.sctpsysctl.var_name), 0, \
907 prefix##_DESC)
908
909 /*
910 * sysctl definitions
911 */
912
913 SCTP_UINT_SYSCTL(sendspace, sctp_sendspace, SCTPCTL_MAXDGRAM);
914 SCTP_UINT_SYSCTL(recvspace, sctp_recvspace, SCTPCTL_RECVSPACE);
915 SCTP_UINT_SYSCTL(auto_asconf, sctp_auto_asconf, SCTPCTL_AUTOASCONF);
916 SCTP_UINT_SYSCTL(ecn_enable, sctp_ecn_enable, SCTPCTL_ECN_ENABLE);
917 SCTP_UINT_SYSCTL(pr_enable, sctp_pr_enable, SCTPCTL_PR_ENABLE);
918 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
919 NULL, 0, sctp_sysctl_handle_auth, "IU", SCTPCTL_AUTH_ENABLE_DESC);
920 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_enable, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
921 NULL, 0, sctp_sysctl_handle_asconf, "IU", SCTPCTL_ASCONF_ENABLE_DESC);
922 SCTP_UINT_SYSCTL(reconfig_enable, sctp_reconfig_enable, SCTPCTL_RECONFIG_ENABLE);
923 SCTP_UINT_SYSCTL(nrsack_enable, sctp_nrsack_enable, SCTPCTL_NRSACK_ENABLE);
924 SCTP_UINT_SYSCTL(pktdrop_enable, sctp_pktdrop_enable, SCTPCTL_PKTDROP_ENABLE);
925 SCTP_UINT_SYSCTL(peer_chkoh, sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH);
926 SCTP_UINT_SYSCTL(maxburst, sctp_max_burst_default, SCTPCTL_MAXBURST);
927 SCTP_UINT_SYSCTL(fr_maxburst, sctp_fr_max_burst_default, SCTPCTL_FRMAXBURST);
928 SCTP_UINT_SYSCTL(maxchunks, sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS);
929 SCTP_UINT_SYSCTL_RDTUN(tcbhashsize, sctp_hashtblsize, SCTPCTL_TCBHASHSIZE);
930 SCTP_UINT_SYSCTL_TUN(pcbhashsize, sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE);
931 SCTP_UINT_SYSCTL_RDTUN(chunkscale, sctp_chunkscale, SCTPCTL_CHUNKSCALE);
932 SCTP_UINT_SYSCTL(min_split_point, sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT);
933 SCTP_UINT_SYSCTL(delayed_sack_time, sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME);
934 SCTP_UINT_SYSCTL(sack_freq, sctp_sack_freq_default, SCTPCTL_SACK_FREQ);
935 SCTP_UINT_SYSCTL(sys_resource, sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE);
936 SCTP_UINT_SYSCTL(asoc_resource, sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE);
937 SCTP_UINT_SYSCTL(heartbeat_interval, sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL);
938 SCTP_UINT_SYSCTL(pmtu_raise_time, sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME);
939 SCTP_UINT_SYSCTL(shutdown_guard_time, sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME);
940 SCTP_UINT_SYSCTL(secret_lifetime, sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME);
941 SCTP_UINT_SYSCTL(rto_max, sctp_rto_max_default, SCTPCTL_RTO_MAX);
942 SCTP_UINT_SYSCTL(rto_min, sctp_rto_min_default, SCTPCTL_RTO_MIN);
943 SCTP_UINT_SYSCTL(rto_initial, sctp_rto_initial_default, SCTPCTL_RTO_INITIAL);
944 SCTP_UINT_SYSCTL(init_rto_max, sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX);
945 SCTP_UINT_SYSCTL(valid_cookie_life, sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE);
946 SCTP_UINT_SYSCTL(init_rtx_max, sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX);
947 SCTP_UINT_SYSCTL(assoc_rtx_max, sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX);
948 SCTP_UINT_SYSCTL(path_rtx_max, sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX);
949 SCTP_UINT_SYSCTL(path_pf_threshold, sctp_path_pf_threshold, SCTPCTL_PATH_PF_THRESHOLD);
950 SCTP_UINT_SYSCTL(add_more_on_output, sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT);
951 SCTP_UINT_SYSCTL(incoming_streams, sctp_nr_incoming_streams_default, SCTPCTL_INCOMING_STREAMS);
952 SCTP_UINT_SYSCTL(outgoing_streams, sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS);
953 SCTP_UINT_SYSCTL(cmt_on_off, sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF);
954 SCTP_UINT_SYSCTL(cmt_use_dac, sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC);
955 SCTP_UINT_SYSCTL(cwnd_maxburst, sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST);
956 SCTP_UINT_SYSCTL(nat_friendly, sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY);
957 SCTP_UINT_SYSCTL(abc_l_var, sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR);
958 SCTP_UINT_SYSCTL(max_chained_mbufs, sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS);
959 SCTP_UINT_SYSCTL(do_sctp_drain, sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN);
960 SCTP_UINT_SYSCTL(hb_max_burst, sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST);
961 SCTP_UINT_SYSCTL(abort_at_limit, sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT);
962 SCTP_UINT_SYSCTL(min_residual, sctp_min_residual, SCTPCTL_MIN_RESIDUAL);
963 SCTP_UINT_SYSCTL(max_retran_chunk, sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK);
964 SCTP_UINT_SYSCTL(log_level, sctp_logging_level, SCTPCTL_LOGGING_LEVEL);
965 SCTP_UINT_SYSCTL(default_cc_module, sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE);
966 SCTP_UINT_SYSCTL(default_ss_module, sctp_default_ss_module, SCTPCTL_DEFAULT_SS_MODULE);
967 SCTP_UINT_SYSCTL(default_frag_interleave, sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE);
968 SCTP_UINT_SYSCTL(mobility_base, sctp_mobility_base, SCTPCTL_MOBILITY_BASE);
969 SCTP_UINT_SYSCTL(mobility_fasthandoff, sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF);
970 #if defined(SCTP_LOCAL_TRACE_BUF)
971 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RD,
972 NULL, 0, sctp_sysctl_handle_trace_log, "S,sctplog", "SCTP logging (struct sctp_log)");
973 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, clear_trace, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
974 NULL, 0, sctp_sysctl_handle_trace_log_clear, "IU", "Clear SCTP Logging buffer");
975 #endif
976 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLFLAG_VNET | CTLTYPE_UINT | CTLFLAG_RW,
977 NULL, 0, sctp_sysctl_handle_udp_tunneling, "IU", SCTPCTL_UDP_TUNNELING_PORT_DESC);
978 SCTP_UINT_SYSCTL(enable_sack_immediately, sctp_enable_sack_immediately, SCTPCTL_SACK_IMMEDIATELY_ENABLE);
979 SCTP_UINT_SYSCTL(nat_friendly_init, sctp_inits_include_nat_friendly, SCTPCTL_NAT_FRIENDLY_INITS);
980 SCTP_UINT_SYSCTL(vtag_time_wait, sctp_vtag_time_wait, SCTPCTL_TIME_WAIT);
981 SCTP_UINT_SYSCTL(buffer_splitting, sctp_buffer_splitting, SCTPCTL_BUFFER_SPLITTING);
982 SCTP_UINT_SYSCTL(initial_cwnd, sctp_initial_cwnd, SCTPCTL_INITIAL_CWND);
983 SCTP_UINT_SYSCTL(rttvar_bw, sctp_rttvar_bw, SCTPCTL_RTTVAR_BW);
984 SCTP_UINT_SYSCTL(rttvar_rtt, sctp_rttvar_rtt, SCTPCTL_RTTVAR_RTT);
985 SCTP_UINT_SYSCTL(rttvar_eqret, sctp_rttvar_eqret, SCTPCTL_RTTVAR_EQRET);
986 SCTP_UINT_SYSCTL(rttvar_steady_step, sctp_steady_step, SCTPCTL_RTTVAR_STEADYS);
987 SCTP_UINT_SYSCTL(use_dcccecn, sctp_use_dccc_ecn, SCTPCTL_RTTVAR_DCCCECN);
988 SCTP_UINT_SYSCTL(blackhole, sctp_blackhole, SCTPCTL_BLACKHOLE);
989 SCTP_UINT_SYSCTL(sendall_limit, sctp_sendall_limit, SCTPCTL_SENDALL_LIMIT);
990 SCTP_UINT_SYSCTL(diag_info_code, sctp_diag_info_code, SCTPCTL_DIAG_INFO_CODE);
991 SCTP_UINT_SYSCTL(ootb_with_zero_cksum, sctp_ootb_with_zero_cksum, SCTPCTL_OOTB_WITH_ZERO_CKSUM);
992 #ifdef SCTP_DEBUG
993 SCTP_UINT_SYSCTL(debug, sctp_debug_on, SCTPCTL_DEBUG);
994 #endif
995 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_VNET | CTLTYPE_STRUCT | CTLFLAG_RW,
996 NULL, 0, sctp_sysctl_handle_stats, "S,sctpstat", "SCTP statistics (struct sctp_stat)");
997 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_VNET | CTLTYPE_OPAQUE | CTLFLAG_RD,
998 NULL, 0, sctp_sysctl_handle_assoclist, "S,xassoc", "List of active SCTP associations");
999