1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 #include <sys/types.h>
27 #include <sys/stream.h>
28 #include <sys/cmn_err.h>
29 #define _SUN_TPI_VERSION 2
30 #include <sys/tihdr.h>
31 #include <sys/ddi.h>
32 #include <sys/sunddi.h>
33 #include <sys/tsol/tndb.h>
34
35 #include <netinet/in.h>
36
37 #include <inet/common.h>
38 #include <inet/ip.h>
39 #include <inet/mib2.h>
40 #include <inet/snmpcom.h>
41 #include <inet/kstatcom.h>
42 #include <inet/ipclassifier.h>
43 #include "sctp_impl.h"
44 #include "sctp_addr.h"
45
46 static void sctp_clr_kstats2(sctp_kstat_t *);
47 static void sctp_add_kstats2(sctp_kstat_counter_t *, sctp_kstat_t *);
48 static int sctp_snmp_state(sctp_t *);
49 static void sctp_sum_mib(sctp_stack_t *, mib2_sctp_t *);
50 static void sctp_add_mib(mib2_sctp_t *, mib2_sctp_t *);
51
52 static int
53 sctp_kstat_update(kstat_t *kp, int rw)
54 {
55 sctp_named_kstat_t *sctpkp;
56 sctp_t *sctp, *sctp_prev;
57 zoneid_t myzoneid;
58 netstackid_t stackid = (netstackid_t)(uintptr_t)kp->ks_private;
59 netstack_t *ns;
60 sctp_stack_t *sctps;
61 mib2_sctp_t sctp_mib;
62
63 if (kp == NULL|| kp->ks_data == NULL)
64 return (EIO);
65
66 if (rw == KSTAT_WRITE)
67 return (EACCES);
68
69 ns = netstack_find_by_stackid(stackid);
70 if (ns == NULL)
71 return (-1);
72 sctps = ns->netstack_sctp;
73 if (sctps == NULL) {
74 netstack_rele(ns);
75 return (-1);
76 }
77
78 /*
79 * For all exclusive netstacks, the zone ID is always GLOBAL_ZONEID.
80 */
81 if (stackid != GLOBAL_NETSTACKID)
82 myzoneid = GLOBAL_ZONEID;
83 else
84 myzoneid = curproc->p_zone->zone_id;
85
86 bzero(&sctp_mib, sizeof (sctp_mib));
87
88 /*
89 * Get the number of current associations and gather their
90 * individual set of statistics.
91 */
92 sctp_prev = NULL;
93 mutex_enter(&sctps->sctps_g_lock);
94 sctp = list_head(&sctps->sctps_g_list);
95 while (sctp != NULL) {
96 mutex_enter(&sctp->sctp_reflock);
97 if (sctp->sctp_condemned) {
98 mutex_exit(&sctp->sctp_reflock);
99 sctp = list_next(&sctps->sctps_g_list, sctp);
100 continue;
101 }
102 sctp->sctp_refcnt++;
103 mutex_exit(&sctp->sctp_reflock);
104 mutex_exit(&sctps->sctps_g_lock);
105 if (sctp_prev != NULL)
106 SCTP_REFRELE(sctp_prev);
107 if (sctp->sctp_connp->conn_zoneid != myzoneid)
108 goto next_sctp;
109 if (sctp->sctp_state == SCTPS_ESTABLISHED ||
110 sctp->sctp_state == SCTPS_SHUTDOWN_PENDING ||
111 sctp->sctp_state == SCTPS_SHUTDOWN_RECEIVED) {
112 /*
113 * Just bump the local sctp_mib. The number of
114 * existing associations is not kept in kernel.
115 */
116 BUMP_MIB(&sctp_mib, sctpCurrEstab);
117 }
118
119 if (sctp->sctp_opkts) {
120 SCTPS_UPDATE_MIB(sctps, sctpOutSCTPPkts,
121 sctp->sctp_opkts);
122 sctp->sctp_opkts = 0;
123 }
124
125 if (sctp->sctp_obchunks) {
126 SCTPS_UPDATE_MIB(sctps, sctpOutCtrlChunks,
127 sctp->sctp_obchunks);
128 UPDATE_LOCAL(sctp->sctp_cum_obchunks,
129 sctp->sctp_obchunks);
130 sctp->sctp_obchunks = 0;
131 }
132
133 if (sctp->sctp_odchunks) {
134 SCTPS_UPDATE_MIB(sctps, sctpOutOrderChunks,
135 sctp->sctp_odchunks);
136 UPDATE_LOCAL(sctp->sctp_cum_odchunks,
137 sctp->sctp_odchunks);
138 sctp->sctp_odchunks = 0;
139 }
140
141 if (sctp->sctp_oudchunks) {
142 SCTPS_UPDATE_MIB(sctps, sctpOutUnorderChunks,
143 sctp->sctp_oudchunks);
144 UPDATE_LOCAL(sctp->sctp_cum_oudchunks,
145 sctp->sctp_oudchunks);
146 sctp->sctp_oudchunks = 0;
147 }
148
149 if (sctp->sctp_rxtchunks) {
150 SCTPS_UPDATE_MIB(sctps, sctpRetransChunks,
151 sctp->sctp_rxtchunks);
152 UPDATE_LOCAL(sctp->sctp_cum_rxtchunks,
153 sctp->sctp_rxtchunks);
154 sctp->sctp_rxtchunks = 0;
155 }
156
157 if (sctp->sctp_ipkts) {
158 SCTPS_UPDATE_MIB(sctps, sctpInSCTPPkts,
159 sctp->sctp_ipkts);
160 sctp->sctp_ipkts = 0;
161 }
162
163 if (sctp->sctp_ibchunks) {
164 SCTPS_UPDATE_MIB(sctps, sctpInCtrlChunks,
165 sctp->sctp_ibchunks);
166 UPDATE_LOCAL(sctp->sctp_cum_ibchunks,
167 sctp->sctp_ibchunks);
168 sctp->sctp_ibchunks = 0;
169 }
170
171 if (sctp->sctp_idchunks) {
172 SCTPS_UPDATE_MIB(sctps, sctpInOrderChunks,
173 sctp->sctp_idchunks);
174 UPDATE_LOCAL(sctp->sctp_cum_idchunks,
175 sctp->sctp_idchunks);
176 sctp->sctp_idchunks = 0;
177 }
178
179 if (sctp->sctp_iudchunks) {
180 SCTPS_UPDATE_MIB(sctps, sctpInUnorderChunks,
181 sctp->sctp_iudchunks);
182 UPDATE_LOCAL(sctp->sctp_cum_iudchunks,
183 sctp->sctp_iudchunks);
184 sctp->sctp_iudchunks = 0;
185 }
186
187 if (sctp->sctp_fragdmsgs) {
188 SCTPS_UPDATE_MIB(sctps, sctpFragUsrMsgs,
189 sctp->sctp_fragdmsgs);
190 sctp->sctp_fragdmsgs = 0;
191 }
192
193 if (sctp->sctp_reassmsgs) {
194 SCTPS_UPDATE_MIB(sctps, sctpReasmUsrMsgs,
195 sctp->sctp_reassmsgs);
196 sctp->sctp_reassmsgs = 0;
197 }
198
199 next_sctp:
200 sctp_prev = sctp;
201 mutex_enter(&sctps->sctps_g_lock);
202 sctp = list_next(&sctps->sctps_g_list, sctp);
203 }
204 mutex_exit(&sctps->sctps_g_lock);
205 if (sctp_prev != NULL)
206 SCTP_REFRELE(sctp_prev);
207
208 sctp_sum_mib(sctps, &sctp_mib);
209
210 /* Copy data from the SCTP MIB */
211 sctpkp = (sctp_named_kstat_t *)kp->ks_data;
212
213 /* These are from global ndd params. */
214 sctpkp->sctpRtoMin.value.ui32 = sctps->sctps_rto_ming;
215 sctpkp->sctpRtoMax.value.ui32 = sctps->sctps_rto_maxg;
216 sctpkp->sctpRtoInitial.value.ui32 = sctps->sctps_rto_initialg;
217 sctpkp->sctpValCookieLife.value.ui32 = sctps->sctps_cookie_life;
218 sctpkp->sctpMaxInitRetr.value.ui32 = sctps->sctps_max_init_retr;
219
220 /* Copy data from the local sctp_mib to the provided kstat. */
221 sctpkp->sctpCurrEstab.value.i32 = sctp_mib.sctpCurrEstab;
222 sctpkp->sctpActiveEstab.value.i32 = sctp_mib.sctpActiveEstab;
223 sctpkp->sctpPassiveEstab.value.i32 = sctp_mib.sctpPassiveEstab;
224 sctpkp->sctpAborted.value.i32 = sctp_mib.sctpAborted;
225 sctpkp->sctpShutdowns.value.i32 = sctp_mib.sctpShutdowns;
226 sctpkp->sctpOutOfBlue.value.i32 = sctp_mib.sctpOutOfBlue;
227 sctpkp->sctpChecksumError.value.i32 = sctp_mib.sctpChecksumError;
228 sctpkp->sctpOutCtrlChunks.value.i64 = sctp_mib.sctpOutCtrlChunks;
229 sctpkp->sctpOutOrderChunks.value.i64 = sctp_mib.sctpOutOrderChunks;
230 sctpkp->sctpOutUnorderChunks.value.i64 = sctp_mib.sctpOutUnorderChunks;
231 sctpkp->sctpRetransChunks.value.i64 = sctp_mib.sctpRetransChunks;
232 sctpkp->sctpOutAck.value.i32 = sctp_mib.sctpOutAck;
233 sctpkp->sctpOutAckDelayed.value.i32 = sctp_mib.sctpOutAckDelayed;
234 sctpkp->sctpOutWinUpdate.value.i32 = sctp_mib.sctpOutWinUpdate;
235 sctpkp->sctpOutFastRetrans.value.i32 = sctp_mib.sctpOutFastRetrans;
236 sctpkp->sctpOutWinProbe.value.i32 = sctp_mib.sctpOutWinProbe;
237 sctpkp->sctpInCtrlChunks.value.i64 = sctp_mib.sctpInCtrlChunks;
238 sctpkp->sctpInOrderChunks.value.i64 = sctp_mib.sctpInOrderChunks;
239 sctpkp->sctpInUnorderChunks.value.i64 = sctp_mib.sctpInUnorderChunks;
240 sctpkp->sctpInAck.value.i32 = sctp_mib.sctpInAck;
241 sctpkp->sctpInDupAck.value.i32 = sctp_mib.sctpInDupAck;
242 sctpkp->sctpInAckUnsent.value.i32 = sctp_mib.sctpInAckUnsent;
243 sctpkp->sctpFragUsrMsgs.value.i64 = sctp_mib.sctpFragUsrMsgs;
244 sctpkp->sctpReasmUsrMsgs.value.i64 = sctp_mib.sctpReasmUsrMsgs;
245 sctpkp->sctpOutSCTPPkts.value.i64 = sctp_mib.sctpOutSCTPPkts;
246 sctpkp->sctpInSCTPPkts.value.i64 = sctp_mib.sctpInSCTPPkts;
247 sctpkp->sctpInInvalidCookie.value.i32 = sctp_mib.sctpInInvalidCookie;
248 sctpkp->sctpTimRetrans.value.i32 = sctp_mib.sctpTimRetrans;
249 sctpkp->sctpTimRetransDrop.value.i32 = sctp_mib.sctpTimRetransDrop;
250 sctpkp->sctpTimHeartBeatProbe.value.i32 =
251 sctp_mib.sctpTimHeartBeatProbe;
252 sctpkp->sctpTimHeartBeatDrop.value.i32 = sctp_mib.sctpTimHeartBeatDrop;
253 sctpkp->sctpListenDrop.value.i32 = sctp_mib.sctpListenDrop;
254 sctpkp->sctpInClosed.value.i32 = sctp_mib.sctpInClosed;
255
256 netstack_rele(ns);
257 return (0);
258 }
259
260 void *
261 sctp_kstat_init(netstackid_t stackid)
262 {
263 kstat_t *ksp;
264
265 sctp_named_kstat_t template = {
266 { "sctpRtoAlgorithm", KSTAT_DATA_INT32, 0 },
267 { "sctpRtoMin", KSTAT_DATA_UINT32, 0 },
268 { "sctpRtoMax", KSTAT_DATA_UINT32, 0 },
269 { "sctpRtoInitial", KSTAT_DATA_UINT32, 0 },
270 { "sctpMaxAssocs", KSTAT_DATA_INT32, 0 },
271 { "sctpValCookieLife", KSTAT_DATA_UINT32, 0 },
272 { "sctpMaxInitRetr", KSTAT_DATA_UINT32, 0 },
273 { "sctpCurrEstab", KSTAT_DATA_INT32, 0 },
274 { "sctpActiveEstab", KSTAT_DATA_INT32, 0 },
275 { "sctpPassiveEstab", KSTAT_DATA_INT32, 0 },
276 { "sctpAborted", KSTAT_DATA_INT32, 0 },
277 { "sctpShutdowns", KSTAT_DATA_INT32, 0 },
278 { "sctpOutOfBlue", KSTAT_DATA_INT32, 0 },
279 { "sctpChecksumError", KSTAT_DATA_INT32, 0 },
280 { "sctpOutCtrlChunks", KSTAT_DATA_INT64, 0 },
281 { "sctpOutOrderChunks", KSTAT_DATA_INT64, 0 },
282 { "sctpOutUnorderChunks", KSTAT_DATA_INT64, 0 },
283 { "sctpRetransChunks", KSTAT_DATA_INT64, 0 },
284 { "sctpOutAck", KSTAT_DATA_INT32, 0 },
285 { "sctpOutAckDelayed", KSTAT_DATA_INT32, 0 },
286 { "sctpOutWinUpdate", KSTAT_DATA_INT32, 0 },
287 { "sctpOutFastRetrans", KSTAT_DATA_INT32, 0 },
288 { "sctpOutWinProbe", KSTAT_DATA_INT32, 0 },
289 { "sctpInCtrlChunks", KSTAT_DATA_INT64, 0 },
290 { "sctpInOrderChunks", KSTAT_DATA_INT64, 0 },
291 { "sctpInUnorderChunks", KSTAT_DATA_INT64, 0 },
292 { "sctpInAck", KSTAT_DATA_INT32, 0 },
293 { "sctpInDupAck", KSTAT_DATA_INT32, 0 },
294 { "sctpInAckUnsent", KSTAT_DATA_INT32, 0 },
295 { "sctpFragUsrMsgs", KSTAT_DATA_INT64, 0 },
296 { "sctpReasmUsrMsgs", KSTAT_DATA_INT64, 0 },
297 { "sctpOutSCTPPkts", KSTAT_DATA_INT64, 0 },
298 { "sctpInSCTPPkts", KSTAT_DATA_INT64, 0 },
299 { "sctpInInvalidCookie", KSTAT_DATA_INT32, 0 },
300 { "sctpTimRetrans", KSTAT_DATA_INT32, 0 },
301 { "sctpTimRetransDrop", KSTAT_DATA_INT32, 0 },
302 { "sctpTimHearBeatProbe", KSTAT_DATA_INT32, 0 },
303 { "sctpTimHearBeatDrop", KSTAT_DATA_INT32, 0 },
304 { "sctpListenDrop", KSTAT_DATA_INT32, 0 },
305 { "sctpInClosed", KSTAT_DATA_INT32, 0 }
306 };
307
308 ksp = kstat_create_netstack(SCTP_MOD_NAME, 0, "sctp", "mib2",
309 KSTAT_TYPE_NAMED, NUM_OF_FIELDS(sctp_named_kstat_t), 0, stackid);
310
311 if (ksp == NULL)
312 return (NULL);
313
314 /* These won't change. */
315 template.sctpRtoAlgorithm.value.i32 = MIB2_SCTP_RTOALGO_VANJ;
316 template.sctpMaxAssocs.value.i32 = -1;
317
318 bcopy(&template, ksp->ks_data, sizeof (template));
319 ksp->ks_update = sctp_kstat_update;
320 ksp->ks_private = (void *)(uintptr_t)stackid;
321
322 kstat_install(ksp);
323 return (ksp);
324 }
325
326 /*
327 * To set all sctp_stat_t counters to 0.
328 */
329 static void
330 sctp_clr_kstats2(sctp_kstat_t *stats)
331 {
332 stats->sctp_add_faddr.value.ui64 = 0;
333 stats->sctp_add_timer.value.ui64 = 0;
334 stats->sctp_conn_create.value.ui64 = 0;
335 stats->sctp_find_next_tq.value.ui64 = 0;
336 stats->sctp_fr_add_hdr.value.ui64 = 0;
337 stats->sctp_fr_not_found.value.ui64 = 0;
338 stats->sctp_output_failed.value.ui64 = 0;
339 stats->sctp_rexmit_failed.value.ui64 = 0;
340 stats->sctp_send_init_failed.value.ui64 = 0;
341 stats->sctp_send_cookie_failed.value.ui64 = 0;
342 stats->sctp_send_cookie_ack_failed.value.ui64 = 0;
343 stats->sctp_send_err_failed.value.ui64 = 0;
344 stats->sctp_send_sack_failed.value.ui64 = 0;
345 stats->sctp_send_shutdown_failed.value.ui64 = 0;
346 stats->sctp_send_shutdown_ack_failed.value.ui64 = 0;
347 stats->sctp_send_shutdown_comp_failed.value.ui64 = 0;
348 stats->sctp_send_user_abort_failed.value.ui64 = 0;
349 stats->sctp_send_asconf_failed.value.ui64 = 0;
350 stats->sctp_send_asconf_ack_failed.value.ui64 = 0;
351 stats->sctp_send_ftsn_failed.value.ui64 = 0;
352 stats->sctp_send_hb_failed.value.ui64 = 0;
353 stats->sctp_return_hb_failed.value.ui64 = 0;
354 stats->sctp_ss_rexmit_failed.value.ui64 = 0;
355 stats->sctp_cl_connect.value.ui64 = 0;
356 stats->sctp_cl_assoc_change.value.ui64 = 0;
357 stats->sctp_cl_check_addrs.value.ui64 = 0;
358 stats->sctp_reclaim_cnt.value.ui64 = 0;
359 stats->sctp_listen_cnt_drop.value.ui64 = 0;
360 }
361
362 /*
363 * To add counters from the per CPU sctp_kstat_counter_t to the stack
364 * sctp_kstat_t.
365 */
366 static void
367 sctp_add_kstats2(sctp_kstat_counter_t *from, sctp_kstat_t *to)
368 {
369 to->sctp_add_faddr.value.ui64 += from->sctp_add_faddr;
370 to->sctp_add_timer.value.ui64 += from->sctp_add_timer;
371 to->sctp_conn_create.value.ui64 += from->sctp_conn_create;
372 to->sctp_find_next_tq.value.ui64 += from->sctp_find_next_tq;
373 to->sctp_fr_add_hdr.value.ui64 += from->sctp_fr_add_hdr;
374 to->sctp_fr_not_found.value.ui64 += from->sctp_fr_not_found;
375 to->sctp_output_failed.value.ui64 += from->sctp_output_failed;
376 to->sctp_rexmit_failed.value.ui64 += from->sctp_rexmit_failed;
377 to->sctp_send_init_failed.value.ui64 += from->sctp_send_init_failed;
378 to->sctp_send_cookie_failed.value.ui64 += from->sctp_send_cookie_failed;
379 to->sctp_send_cookie_ack_failed.value.ui64 +=
380 from->sctp_send_cookie_ack_failed;
381 to->sctp_send_err_failed.value.ui64 += from->sctp_send_err_failed;
382 to->sctp_send_sack_failed.value.ui64 += from->sctp_send_sack_failed;
383 to->sctp_send_shutdown_failed.value.ui64 +=
384 from->sctp_send_shutdown_failed;
385 to->sctp_send_shutdown_ack_failed.value.ui64 +=
386 from->sctp_send_shutdown_ack_failed;
387 to->sctp_send_shutdown_comp_failed.value.ui64 +=
388 from->sctp_send_shutdown_comp_failed;
389 to->sctp_send_user_abort_failed.value.ui64 +=
390 from->sctp_send_user_abort_failed;
391 to->sctp_send_asconf_failed.value.ui64 += from->sctp_send_asconf_failed;
392 to->sctp_send_asconf_ack_failed.value.ui64 +=
393 from->sctp_send_asconf_ack_failed;
394 to->sctp_send_ftsn_failed.value.ui64 += from->sctp_send_ftsn_failed;
395 to->sctp_send_hb_failed.value.ui64 += from->sctp_send_hb_failed;
396 to->sctp_return_hb_failed.value.ui64 += from->sctp_return_hb_failed;
397 to->sctp_ss_rexmit_failed.value.ui64 += from->sctp_ss_rexmit_failed;
398 to->sctp_cl_connect.value.ui64 += from->sctp_cl_connect;
399 to->sctp_cl_assoc_change.value.ui64 += from->sctp_cl_assoc_change;
400 to->sctp_cl_check_addrs.value.ui64 += from->sctp_cl_check_addrs;
401 }
402
403 /*
404 * Sum up all per CPU tcp_stat_t kstat counters.
405 */
406 static int
407 sctp_kstat2_update(kstat_t *kp, int rw)
408 {
409 netstackid_t stackid = (netstackid_t)(uintptr_t)kp->ks_private;
410 netstack_t *ns;
411 sctp_stack_t *sctps;
412 sctp_kstat_t *stats;
413 int i;
414 int cnt;
415
416 if (rw == KSTAT_WRITE)
417 return (EACCES);
418
419 ns = netstack_find_by_stackid(stackid);
420 if (ns == NULL)
421 return (-1);
422 sctps = ns->netstack_sctp;
423 if (sctps == NULL) {
424 netstack_rele(ns);
425 return (-1);
426 }
427
428 stats = (sctp_kstat_t *)kp->ks_data;
429 sctp_clr_kstats2(stats);
430
431 /*
432 * sctps_sc_cnt may change in the middle of the loop. It is better
433 * to get its value first.
434 */
435 cnt = sctps->sctps_sc_cnt;
436 for (i = 0; i < cnt; i++)
437 sctp_add_kstats2(&sctps->sctps_sc[i]->sctp_sc_stats, stats);
438
439 netstack_rele(ns);
440 return (0);
441 }
442
443 /*
444 * The following kstats are for debugging purposes. They keep
445 * track of problems which should not happen normally. But in
446 * those cases which they do happen, these kstats would be handy
447 * for engineers to diagnose the problems. They are not intended
448 * to be consumed by customers.
449 */
450 void *
451 sctp_kstat2_init(netstackid_t stackid)
452 {
453 kstat_t *ksp;
454
455 sctp_kstat_t template = {
456 { "sctp_add_faddr", KSTAT_DATA_UINT64 },
457 { "sctp_add_timer", KSTAT_DATA_UINT64 },
458 { "sctp_conn_create", KSTAT_DATA_UINT64 },
459 { "sctp_find_next_tq", KSTAT_DATA_UINT64 },
460 { "sctp_fr_add_hdr", KSTAT_DATA_UINT64 },
461 { "sctp_fr_not_found", KSTAT_DATA_UINT64 },
462 { "sctp_output_failed", KSTAT_DATA_UINT64 },
463 { "sctp_rexmit_failed", KSTAT_DATA_UINT64 },
464 { "sctp_send_init_failed", KSTAT_DATA_UINT64 },
465 { "sctp_send_cookie_failed", KSTAT_DATA_UINT64 },
466 { "sctp_send_cookie_ack_failed", KSTAT_DATA_UINT64 },
467 { "sctp_send_err_failed", KSTAT_DATA_UINT64 },
468 { "sctp_send_sack_failed", KSTAT_DATA_UINT64 },
469 { "sctp_send_shutdown_failed", KSTAT_DATA_UINT64 },
470 { "sctp_send_shutdown_ack_failed", KSTAT_DATA_UINT64 },
471 { "sctp_send_shutdown_comp_failed", KSTAT_DATA_UINT64 },
472 { "sctp_send_user_abort_failed", KSTAT_DATA_UINT64 },
473 { "sctp_send_asconf_failed", KSTAT_DATA_UINT64 },
474 { "sctp_send_asconf_ack_failed", KSTAT_DATA_UINT64 },
475 { "sctp_send_ftsn_failed", KSTAT_DATA_UINT64 },
476 { "sctp_send_hb_failed", KSTAT_DATA_UINT64 },
477 { "sctp_return_hb_failed", KSTAT_DATA_UINT64 },
478 { "sctp_ss_rexmit_failed", KSTAT_DATA_UINT64 },
479 { "sctp_cl_connect", KSTAT_DATA_UINT64 },
480 { "sctp_cl_assoc_change", KSTAT_DATA_UINT64 },
481 { "sctp_cl_check_addrs", KSTAT_DATA_UINT64 },
482 { "sctp_reclaim_drop", KSTAT_DATA_UINT64 },
483 { "sctp_listen_cnt_drop", KSTAT_DATA_UINT64 },
484 };
485
486 ksp = kstat_create_netstack(SCTP_MOD_NAME, 0, "sctpstat", "net",
487 KSTAT_TYPE_NAMED, NUM_OF_FIELDS(template), 0, stackid);
488
489 if (ksp == NULL)
490 return (NULL);
491
492 bcopy(&template, ksp->ks_data, sizeof (template));
493 ksp->ks_private = (void *)(uintptr_t)stackid;
494 ksp->ks_update = sctp_kstat2_update;
495
496 kstat_install(ksp);
497 return (ksp);
498 }
499
500 void
501 sctp_kstat_fini(netstackid_t stackid, kstat_t *ksp)
502 {
503 if (ksp != NULL) {
504 ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private);
505 kstat_delete_netstack(ksp, stackid);
506 }
507 }
508
509 void
510 sctp_kstat2_fini(netstackid_t stackid, kstat_t *ksp)
511 {
512 if (ksp != NULL) {
513 ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private);
514 kstat_delete_netstack(ksp, stackid);
515 }
516 }
517
518 /*
519 * Return SNMP global stats in buffer in mpdata.
520 * Return associatiation table in mp_conn_data,
521 * local address table in mp_local_data, and
522 * remote address table in mp_rem_data.
523 */
524 mblk_t *
525 sctp_snmp_get_mib2(queue_t *q, mblk_t *mpctl, sctp_stack_t *sctps)
526 {
527 mblk_t *mpdata, *mp_ret;
528 mblk_t *mp_conn_ctl = NULL;
529 mblk_t *mp_conn_data;
530 mblk_t *mp_conn_tail = NULL;
531 mblk_t *mp_pidnode_ctl = NULL;
532 mblk_t *mp_pidnode_data;
533 mblk_t *mp_pidnode_tail = NULL;
534 mblk_t *mp_local_ctl = NULL;
535 mblk_t *mp_local_data;
536 mblk_t *mp_local_tail = NULL;
537 mblk_t *mp_rem_ctl = NULL;
538 mblk_t *mp_rem_data;
539 mblk_t *mp_rem_tail = NULL;
540 mblk_t *mp_attr_ctl = NULL;
541 mblk_t *mp_attr_data;
542 mblk_t *mp_attr_tail = NULL;
543 struct opthdr *optp;
544 sctp_t *sctp, *sctp_prev = NULL;
545 sctp_faddr_t *fp;
546 mib2_sctpConnEntry_t sce;
547 mib2_sctpConnLocalEntry_t scle;
548 mib2_sctpConnRemoteEntry_t scre;
549 mib2_transportMLPEntry_t mlp;
550 int i;
551 int l;
552 int scanned = 0;
553 zoneid_t zoneid = Q_TO_CONN(q)->conn_zoneid;
554 conn_t *connp;
555 boolean_t needattr;
556 int idx;
557 mib2_sctp_t sctp_mib;
558
559 /*
560 * Make copies of the original message.
561 * mpctl will hold SCTP counters,
562 * mp_conn_ctl will hold list of connections.
563 */
564 mp_ret = copymsg(mpctl);
565 mp_conn_ctl = copymsg(mpctl);
566 mp_pidnode_ctl = copymsg(mpctl);
567 mp_local_ctl = copymsg(mpctl);
568 mp_rem_ctl = copymsg(mpctl);
569 mp_attr_ctl = copymsg(mpctl);
570
571 mpdata = mpctl->b_cont;
572
573 if (mp_conn_ctl == NULL || mp_pidnode_ctl == NULL ||
574 mp_local_ctl == NULL || mp_rem_ctl == NULL || mp_attr_ctl == NULL ||
575 mpdata == NULL) {
576 freemsg(mp_attr_ctl);
577 freemsg(mp_rem_ctl);
578 freemsg(mp_local_ctl);
579 freemsg(mp_pidnode_ctl);
580 freemsg(mp_conn_ctl);
581 freemsg(mp_ret);
582 freemsg(mpctl);
583 return (NULL);
584 }
585 mp_conn_data = mp_conn_ctl->b_cont;
586 mp_pidnode_data = mp_pidnode_ctl->b_cont;
587 mp_local_data = mp_local_ctl->b_cont;
588 mp_rem_data = mp_rem_ctl->b_cont;
589 mp_attr_data = mp_attr_ctl->b_cont;
590
591 bzero(&sctp_mib, sizeof (sctp_mib));
592
593 /* hostname address parameters are not supported in Solaris */
594 sce.sctpAssocRemHostName.o_length = 0;
595 sce.sctpAssocRemHostName.o_bytes[0] = 0;
596
597 /* build table of connections -- need count in fixed part */
598
599 idx = 0;
600 mutex_enter(&sctps->sctps_g_lock);
601 sctp = list_head(&sctps->sctps_g_list);
602 while (sctp != NULL) {
603 mutex_enter(&sctp->sctp_reflock);
604 if (sctp->sctp_condemned) {
605 mutex_exit(&sctp->sctp_reflock);
606 sctp = list_next(&sctps->sctps_g_list, sctp);
607 continue;
608 }
609 sctp->sctp_refcnt++;
610 mutex_exit(&sctp->sctp_reflock);
611 mutex_exit(&sctps->sctps_g_lock);
612 if (sctp_prev != NULL)
613 SCTP_REFRELE(sctp_prev);
614 if (sctp->sctp_connp->conn_zoneid != zoneid)
615 goto next_sctp;
616 if (sctp->sctp_state == SCTPS_ESTABLISHED ||
617 sctp->sctp_state == SCTPS_SHUTDOWN_PENDING ||
618 sctp->sctp_state == SCTPS_SHUTDOWN_RECEIVED) {
619 /*
620 * Just bump the local sctp_mib. The number of
621 * existing associations is not kept in kernel.
622 */
623 BUMP_MIB(&sctp_mib, sctpCurrEstab);
624 }
625 SCTPS_UPDATE_MIB(sctps, sctpOutSCTPPkts, sctp->sctp_opkts);
626 sctp->sctp_opkts = 0;
627 SCTPS_UPDATE_MIB(sctps, sctpOutCtrlChunks, sctp->sctp_obchunks);
628 UPDATE_LOCAL(sctp->sctp_cum_obchunks,
629 sctp->sctp_obchunks);
630 sctp->sctp_obchunks = 0;
631 SCTPS_UPDATE_MIB(sctps, sctpOutOrderChunks,
632 sctp->sctp_odchunks);
633 UPDATE_LOCAL(sctp->sctp_cum_odchunks,
634 sctp->sctp_odchunks);
635 sctp->sctp_odchunks = 0;
636 SCTPS_UPDATE_MIB(sctps, sctpOutUnorderChunks,
637 sctp->sctp_oudchunks);
638 UPDATE_LOCAL(sctp->sctp_cum_oudchunks,
639 sctp->sctp_oudchunks);
640 sctp->sctp_oudchunks = 0;
641 SCTPS_UPDATE_MIB(sctps, sctpRetransChunks,
642 sctp->sctp_rxtchunks);
643 UPDATE_LOCAL(sctp->sctp_cum_rxtchunks,
644 sctp->sctp_rxtchunks);
645 sctp->sctp_rxtchunks = 0;
646 SCTPS_UPDATE_MIB(sctps, sctpInSCTPPkts, sctp->sctp_ipkts);
647 sctp->sctp_ipkts = 0;
648 SCTPS_UPDATE_MIB(sctps, sctpInCtrlChunks, sctp->sctp_ibchunks);
649 UPDATE_LOCAL(sctp->sctp_cum_ibchunks,
650 sctp->sctp_ibchunks);
651 sctp->sctp_ibchunks = 0;
652 SCTPS_UPDATE_MIB(sctps, sctpInOrderChunks, sctp->sctp_idchunks);
653 UPDATE_LOCAL(sctp->sctp_cum_idchunks,
654 sctp->sctp_idchunks);
655 sctp->sctp_idchunks = 0;
656 SCTPS_UPDATE_MIB(sctps, sctpInUnorderChunks,
657 sctp->sctp_iudchunks);
658 UPDATE_LOCAL(sctp->sctp_cum_iudchunks,
659 sctp->sctp_iudchunks);
660 sctp->sctp_iudchunks = 0;
661 SCTPS_UPDATE_MIB(sctps, sctpFragUsrMsgs, sctp->sctp_fragdmsgs);
662 sctp->sctp_fragdmsgs = 0;
663 SCTPS_UPDATE_MIB(sctps, sctpReasmUsrMsgs, sctp->sctp_reassmsgs);
664 sctp->sctp_reassmsgs = 0;
665
666 sce.sctpAssocId = ntohl(sctp->sctp_lvtag);
667 sce.sctpAssocLocalPort = ntohs(sctp->sctp_connp->conn_lport);
668 sce.sctpAssocRemPort = ntohs(sctp->sctp_connp->conn_fport);
669
670 RUN_SCTP(sctp);
671 if (sctp->sctp_primary != NULL) {
672 fp = sctp->sctp_primary;
673
674 if (IN6_IS_ADDR_V4MAPPED(&fp->sf_faddr)) {
675 sce.sctpAssocRemPrimAddrType =
676 MIB2_SCTP_ADDR_V4;
677 } else {
678 sce.sctpAssocRemPrimAddrType =
679 MIB2_SCTP_ADDR_V6;
680 }
681 sce.sctpAssocRemPrimAddr = fp->sf_faddr;
682 sce.sctpAssocLocPrimAddr = fp->sf_saddr;
683 sce.sctpAssocHeartBeatInterval = TICK_TO_MSEC(
684 fp->sf_hb_interval);
685 } else {
686 sce.sctpAssocRemPrimAddrType = MIB2_SCTP_ADDR_V4;
687 bzero(&sce.sctpAssocRemPrimAddr,
688 sizeof (sce.sctpAssocRemPrimAddr));
689 bzero(&sce.sctpAssocLocPrimAddr,
690 sizeof (sce.sctpAssocLocPrimAddr));
691 sce.sctpAssocHeartBeatInterval =
692 sctps->sctps_heartbeat_interval;
693 }
694
695 /*
696 * Table for local addresses
697 */
698 scanned = 0;
699 for (i = 0; i < SCTP_IPIF_HASH; i++) {
700 sctp_saddr_ipif_t *obj;
701
702 if (sctp->sctp_saddrs[i].ipif_count == 0)
703 continue;
704 obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list);
705 for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) {
706 sctp_ipif_t *sctp_ipif;
707 in6_addr_t addr;
708
709 sctp_ipif = obj->saddr_ipifp;
710 addr = sctp_ipif->sctp_ipif_saddr;
711 scanned++;
712 scle.sctpAssocId = ntohl(sctp->sctp_lvtag);
713 if (IN6_IS_ADDR_V4MAPPED(&addr)) {
714 scle.sctpAssocLocalAddrType =
715 MIB2_SCTP_ADDR_V4;
716 } else {
717 scle.sctpAssocLocalAddrType =
718 MIB2_SCTP_ADDR_V6;
719 }
720 scle.sctpAssocLocalAddr = addr;
721 (void) snmp_append_data2(mp_local_data,
722 &mp_local_tail, (char *)&scle,
723 sizeof (scle));
724 if (scanned >= sctp->sctp_nsaddrs)
725 goto done;
726 obj = list_next(&sctp->
727 sctp_saddrs[i].sctp_ipif_list, obj);
728 }
729 }
730 done:
731 /*
732 * Table for remote addresses
733 */
734 for (fp = sctp->sctp_faddrs; fp; fp = fp->sf_next) {
735 scre.sctpAssocId = ntohl(sctp->sctp_lvtag);
736 if (IN6_IS_ADDR_V4MAPPED(&fp->sf_faddr)) {
737 scre.sctpAssocRemAddrType = MIB2_SCTP_ADDR_V4;
738 } else {
739 scre.sctpAssocRemAddrType = MIB2_SCTP_ADDR_V6;
740 }
741 scre.sctpAssocRemAddr = fp->sf_faddr;
742 if (fp->sf_state == SCTP_FADDRS_ALIVE) {
743 scre.sctpAssocRemAddrActive =
744 scre.sctpAssocRemAddrHBActive =
745 MIB2_SCTP_ACTIVE;
746 } else {
747 scre.sctpAssocRemAddrActive =
748 scre.sctpAssocRemAddrHBActive =
749 MIB2_SCTP_INACTIVE;
750 }
751 scre.sctpAssocRemAddrRTO = TICK_TO_MSEC(fp->sf_rto);
752 scre.sctpAssocRemAddrMaxPathRtx = fp->sf_max_retr;
753 scre.sctpAssocRemAddrRtx = fp->sf_T3expire;
754 (void) snmp_append_data2(mp_rem_data, &mp_rem_tail,
755 (char *)&scre, sizeof (scre));
756 }
757 connp = sctp->sctp_connp;
758 needattr = B_FALSE;
759 bzero(&mlp, sizeof (mlp));
760 if (connp->conn_mlp_type != mlptSingle) {
761 if (connp->conn_mlp_type == mlptShared ||
762 connp->conn_mlp_type == mlptBoth)
763 mlp.tme_flags |= MIB2_TMEF_SHARED;
764 if (connp->conn_mlp_type == mlptPrivate ||
765 connp->conn_mlp_type == mlptBoth)
766 mlp.tme_flags |= MIB2_TMEF_PRIVATE;
767 needattr = B_TRUE;
768 }
769 if (connp->conn_anon_mlp) {
770 mlp.tme_flags |= MIB2_TMEF_ANONMLP;
771 needattr = B_TRUE;
772 }
773 switch (connp->conn_mac_mode) {
774 case CONN_MAC_DEFAULT:
775 break;
776 case CONN_MAC_AWARE:
777 mlp.tme_flags |= MIB2_TMEF_MACEXEMPT;
778 needattr = B_TRUE;
779 break;
780 case CONN_MAC_IMPLICIT:
781 mlp.tme_flags |= MIB2_TMEF_MACIMPLICIT;
782 needattr = B_TRUE;
783 break;
784 }
785 if (sctp->sctp_connp->conn_ixa->ixa_tsl != NULL) {
786 ts_label_t *tsl;
787
788 tsl = sctp->sctp_connp->conn_ixa->ixa_tsl;
789 mlp.tme_flags |= MIB2_TMEF_IS_LABELED;
790 mlp.tme_doi = label2doi(tsl);
791 mlp.tme_label = *label2bslabel(tsl);
792 needattr = B_TRUE;
793 }
794 WAKE_SCTP(sctp);
795 sce.sctpAssocState = sctp_snmp_state(sctp);
796 sce.sctpAssocInStreams = sctp->sctp_num_istr;
797 sce.sctpAssocOutStreams = sctp->sctp_num_ostr;
798 sce.sctpAssocMaxRetr = sctp->sctp_pa_max_rxt;
799 /* A 0 here indicates that no primary process is known */
800 sce.sctpAssocPrimProcess = 0;
801 sce.sctpAssocT1expired = sctp->sctp_T1expire;
802 sce.sctpAssocT2expired = sctp->sctp_T2expire;
803 sce.sctpAssocRtxChunks = sctp->sctp_T3expire;
804 sce.sctpAssocStartTime = sctp->sctp_assoc_start_time;
805 sce.sctpConnEntryInfo.ce_sendq = sctp->sctp_unacked +
806 sctp->sctp_unsent;
807 sce.sctpConnEntryInfo.ce_recvq = sctp->sctp_rxqueued;
808 sce.sctpConnEntryInfo.ce_swnd = sctp->sctp_frwnd;
809 sce.sctpConnEntryInfo.ce_rwnd = sctp->sctp_rwnd;
810 sce.sctpConnEntryInfo.ce_mss = sctp->sctp_mss;
811 (void) snmp_append_data2(mp_conn_data, &mp_conn_tail,
812 (char *)&sce, sizeof (sce));
813
814 (void) snmp_append_data2(mp_pidnode_data, &mp_pidnode_tail,
815 (char *)&sce, sizeof (sce));
816
817 (void) snmp_append_mblk2(mp_pidnode_data, &mp_pidnode_tail,
818 conn_get_pid_mblk(connp));
819
820 mlp.tme_connidx = idx++;
821 if (needattr)
822 (void) snmp_append_data2(mp_attr_ctl->b_cont,
823 &mp_attr_tail, (char *)&mlp, sizeof (mlp));
824 next_sctp:
825 sctp_prev = sctp;
826 mutex_enter(&sctps->sctps_g_lock);
827 sctp = list_next(&sctps->sctps_g_list, sctp);
828 }
829 mutex_exit(&sctps->sctps_g_lock);
830 if (sctp_prev != NULL)
831 SCTP_REFRELE(sctp_prev);
832
833 sctp_sum_mib(sctps, &sctp_mib);
834
835 optp = (struct opthdr *)&mpctl->b_rptr[sizeof (struct T_optmgmt_ack)];
836 optp->level = MIB2_SCTP;
837 optp->name = 0;
838 (void) snmp_append_data(mpdata, (char *)&sctp_mib, sizeof (sctp_mib));
839 optp->len = msgdsize(mpdata);
840 qreply(q, mpctl);
841
842 /* table of connections... */
843 optp = (struct opthdr *)&mp_conn_ctl->b_rptr[
844 sizeof (struct T_optmgmt_ack)];
845 optp->level = MIB2_SCTP;
846 optp->name = MIB2_SCTP_CONN;
847 optp->len = msgdsize(mp_conn_data);
848 qreply(q, mp_conn_ctl);
849
850 /* table of EXPER_XPORT_PROC_INFO */
851 optp = (struct opthdr *)&mp_pidnode_ctl->b_rptr[
852 sizeof (struct T_optmgmt_ack)];
853 optp->level = MIB2_SCTP;
854 optp->name = EXPER_XPORT_PROC_INFO;
855 optp->len = msgdsize(mp_pidnode_data);
856 qreply(q, mp_pidnode_ctl);
857
858 /* assoc local address table */
859 optp = (struct opthdr *)&mp_local_ctl->b_rptr[
860 sizeof (struct T_optmgmt_ack)];
861 optp->level = MIB2_SCTP;
862 optp->name = MIB2_SCTP_CONN_LOCAL;
863 optp->len = msgdsize(mp_local_data);
864 qreply(q, mp_local_ctl);
865
866 /* assoc remote address table */
867 optp = (struct opthdr *)&mp_rem_ctl->b_rptr[
868 sizeof (struct T_optmgmt_ack)];
869 optp->level = MIB2_SCTP;
870 optp->name = MIB2_SCTP_CONN_REMOTE;
871 optp->len = msgdsize(mp_rem_data);
872 qreply(q, mp_rem_ctl);
873
874 /* table of MLP attributes */
875 optp = (struct opthdr *)&mp_attr_ctl->b_rptr[
876 sizeof (struct T_optmgmt_ack)];
877 optp->level = MIB2_SCTP;
878 optp->name = EXPER_XPORT_MLP;
879 optp->len = msgdsize(mp_attr_data);
880 if (optp->len == 0)
881 freemsg(mp_attr_ctl);
882 else
883 qreply(q, mp_attr_ctl);
884
885 return (mp_ret);
886 }
887
888 /* Translate SCTP state to MIB2 SCTP state. */
889 static int
890 sctp_snmp_state(sctp_t *sctp)
891 {
892 if (sctp == NULL)
893 return (0);
894
895 switch (sctp->sctp_state) {
896 case SCTPS_IDLE:
897 case SCTPS_BOUND:
898 return (MIB2_SCTP_closed);
899 case SCTPS_LISTEN:
900 return (MIB2_SCTP_listen);
901 case SCTPS_COOKIE_WAIT:
902 return (MIB2_SCTP_cookieWait);
903 case SCTPS_COOKIE_ECHOED:
904 return (MIB2_SCTP_cookieEchoed);
905 case SCTPS_ESTABLISHED:
906 return (MIB2_SCTP_established);
907 case SCTPS_SHUTDOWN_PENDING:
908 return (MIB2_SCTP_shutdownPending);
909 case SCTPS_SHUTDOWN_SENT:
910 return (MIB2_SCTP_shutdownSent);
911 case SCTPS_SHUTDOWN_RECEIVED:
912 return (MIB2_SCTP_shutdownReceived);
913 case SCTPS_SHUTDOWN_ACK_SENT:
914 return (MIB2_SCTP_shutdownAckSent);
915 default:
916 return (0);
917 }
918 }
919
920 /*
921 * To sum up all MIB2 stats for a sctp_stack_t from all per CPU stats. The
922 * caller should initialize the target mib2_sctp_t properly as this function
923 * just adds up all the per CPU stats.
924 */
925 static void
926 sctp_sum_mib(sctp_stack_t *sctps, mib2_sctp_t *sctp_mib)
927 {
928 int i;
929 int cnt;
930
931 /* Static componets of mib2_sctp_t. */
932 SET_MIB(sctp_mib->sctpRtoAlgorithm, MIB2_SCTP_RTOALGO_VANJ);
933 SET_MIB(sctp_mib->sctpRtoMin, sctps->sctps_rto_ming);
934 SET_MIB(sctp_mib->sctpRtoMax, sctps->sctps_rto_maxg);
935 SET_MIB(sctp_mib->sctpRtoInitial, sctps->sctps_rto_initialg);
936 SET_MIB(sctp_mib->sctpMaxAssocs, -1);
937 SET_MIB(sctp_mib->sctpValCookieLife, sctps->sctps_cookie_life);
938 SET_MIB(sctp_mib->sctpMaxInitRetr, sctps->sctps_max_init_retr);
939
940 /* fixed length structure for IPv4 and IPv6 counters */
941 SET_MIB(sctp_mib->sctpEntrySize, sizeof (mib2_sctpConnEntry_t));
942 SET_MIB(sctp_mib->sctpLocalEntrySize,
943 sizeof (mib2_sctpConnLocalEntry_t));
944 SET_MIB(sctp_mib->sctpRemoteEntrySize,
945 sizeof (mib2_sctpConnRemoteEntry_t));
946
947 /*
948 * sctps_sc_cnt may change in the middle of the loop. It is better
949 * to get its value first.
950 */
951 cnt = sctps->sctps_sc_cnt;
952 for (i = 0; i < cnt; i++)
953 sctp_add_mib(&sctps->sctps_sc[i]->sctp_sc_mib, sctp_mib);
954 }
955
956 static void
957 sctp_add_mib(mib2_sctp_t *from, mib2_sctp_t *to)
958 {
959 to->sctpActiveEstab += from->sctpActiveEstab;
960 to->sctpPassiveEstab += from->sctpPassiveEstab;
961 to->sctpAborted += from->sctpAborted;
962 to->sctpShutdowns += from->sctpShutdowns;
963 to->sctpOutOfBlue += from->sctpOutOfBlue;
964 to->sctpChecksumError += from->sctpChecksumError;
965 to->sctpOutCtrlChunks += from->sctpOutCtrlChunks;
966 to->sctpOutOrderChunks += from->sctpOutOrderChunks;
967 to->sctpOutUnorderChunks += from->sctpOutUnorderChunks;
968 to->sctpRetransChunks += from->sctpRetransChunks;
969 to->sctpOutAck += from->sctpOutAck;
970 to->sctpOutAckDelayed += from->sctpOutAckDelayed;
971 to->sctpOutWinUpdate += from->sctpOutWinUpdate;
972 to->sctpOutFastRetrans += from->sctpOutFastRetrans;
973 to->sctpOutWinProbe += from->sctpOutWinProbe;
974 to->sctpInCtrlChunks += from->sctpInCtrlChunks;
975 to->sctpInOrderChunks += from->sctpInOrderChunks;
976 to->sctpInUnorderChunks += from->sctpInUnorderChunks;
977 to->sctpInAck += from->sctpInAck;
978 to->sctpInDupAck += from->sctpInDupAck;
979 to->sctpInAckUnsent += from->sctpInAckUnsent;
980 to->sctpFragUsrMsgs += from->sctpFragUsrMsgs;
981 to->sctpReasmUsrMsgs += from->sctpReasmUsrMsgs;
982 to->sctpOutSCTPPkts += from->sctpOutSCTPPkts;
983 to->sctpInSCTPPkts += from->sctpInSCTPPkts;
984 to->sctpInInvalidCookie += from->sctpInInvalidCookie;
985 to->sctpTimRetrans += from->sctpTimRetrans;
986 to->sctpTimRetransDrop += from->sctpTimRetransDrop;
987 to->sctpTimHeartBeatProbe += from->sctpTimHeartBeatProbe;
988 to->sctpTimHeartBeatDrop += from->sctpTimHeartBeatDrop;
989 to->sctpListenDrop += from->sctpListenDrop;
990 to->sctpInClosed += from->sctpInClosed;
991 }