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_local_ctl = NULL;
532 mblk_t *mp_local_data;
533 mblk_t *mp_local_tail = NULL;
534 mblk_t *mp_rem_ctl = NULL;
535 mblk_t *mp_rem_data;
536 mblk_t *mp_rem_tail = NULL;
537 mblk_t *mp_attr_ctl = NULL;
538 mblk_t *mp_attr_data;
539 mblk_t *mp_attr_tail = NULL;
540 struct opthdr *optp;
541 sctp_t *sctp, *sctp_prev = NULL;
542 sctp_faddr_t *fp;
543 mib2_sctpConnEntry_t sce;
544 mib2_sctpConnLocalEntry_t scle;
545 mib2_sctpConnRemoteEntry_t scre;
546 mib2_transportMLPEntry_t mlp;
547 int i;
548 int l;
549 int scanned = 0;
550 zoneid_t zoneid = Q_TO_CONN(q)->conn_zoneid;
551 conn_t *connp;
552 boolean_t needattr;
553 int idx;
554 mib2_sctp_t sctp_mib;
555
556 /*
557 * Make copies of the original message.
558 * mpctl will hold SCTP counters,
559 * mp_conn_ctl will hold list of connections.
560 */
561 mp_ret = copymsg(mpctl);
562 mp_conn_ctl = copymsg(mpctl);
563 mp_local_ctl = copymsg(mpctl);
564 mp_rem_ctl = copymsg(mpctl);
565 mp_attr_ctl = copymsg(mpctl);
566
567 mpdata = mpctl->b_cont;
568
569 if (mp_conn_ctl == NULL || mp_local_ctl == NULL ||
570 mp_rem_ctl == NULL || mp_attr_ctl == NULL || mpdata == NULL) {
571 freemsg(mp_attr_ctl);
572 freemsg(mp_rem_ctl);
573 freemsg(mp_local_ctl);
574 freemsg(mp_conn_ctl);
575 freemsg(mp_ret);
576 freemsg(mpctl);
577 return (NULL);
578 }
579 mp_conn_data = mp_conn_ctl->b_cont;
580 mp_local_data = mp_local_ctl->b_cont;
581 mp_rem_data = mp_rem_ctl->b_cont;
582 mp_attr_data = mp_attr_ctl->b_cont;
583
584 bzero(&sctp_mib, sizeof (sctp_mib));
585
586 /* hostname address parameters are not supported in Solaris */
587 sce.sctpAssocRemHostName.o_length = 0;
588 sce.sctpAssocRemHostName.o_bytes[0] = 0;
589
590 /* build table of connections -- need count in fixed part */
591
592 idx = 0;
593 mutex_enter(&sctps->sctps_g_lock);
594 sctp = list_head(&sctps->sctps_g_list);
595 while (sctp != NULL) {
596 mutex_enter(&sctp->sctp_reflock);
597 if (sctp->sctp_condemned) {
598 mutex_exit(&sctp->sctp_reflock);
599 sctp = list_next(&sctps->sctps_g_list, sctp);
600 continue;
601 }
602 sctp->sctp_refcnt++;
603 mutex_exit(&sctp->sctp_reflock);
604 mutex_exit(&sctps->sctps_g_lock);
605 if (sctp_prev != NULL)
606 SCTP_REFRELE(sctp_prev);
607 if (sctp->sctp_connp->conn_zoneid != zoneid)
608 goto next_sctp;
609 if (sctp->sctp_state == SCTPS_ESTABLISHED ||
610 sctp->sctp_state == SCTPS_SHUTDOWN_PENDING ||
611 sctp->sctp_state == SCTPS_SHUTDOWN_RECEIVED) {
612 /*
613 * Just bump the local sctp_mib. The number of
614 * existing associations is not kept in kernel.
615 */
616 BUMP_MIB(&sctp_mib, sctpCurrEstab);
617 }
618 SCTPS_UPDATE_MIB(sctps, sctpOutSCTPPkts, sctp->sctp_opkts);
619 sctp->sctp_opkts = 0;
620 SCTPS_UPDATE_MIB(sctps, sctpOutCtrlChunks, sctp->sctp_obchunks);
621 UPDATE_LOCAL(sctp->sctp_cum_obchunks,
622 sctp->sctp_obchunks);
623 sctp->sctp_obchunks = 0;
624 SCTPS_UPDATE_MIB(sctps, sctpOutOrderChunks,
625 sctp->sctp_odchunks);
626 UPDATE_LOCAL(sctp->sctp_cum_odchunks,
627 sctp->sctp_odchunks);
628 sctp->sctp_odchunks = 0;
629 SCTPS_UPDATE_MIB(sctps, sctpOutUnorderChunks,
630 sctp->sctp_oudchunks);
631 UPDATE_LOCAL(sctp->sctp_cum_oudchunks,
632 sctp->sctp_oudchunks);
633 sctp->sctp_oudchunks = 0;
634 SCTPS_UPDATE_MIB(sctps, sctpRetransChunks,
635 sctp->sctp_rxtchunks);
636 UPDATE_LOCAL(sctp->sctp_cum_rxtchunks,
637 sctp->sctp_rxtchunks);
638 sctp->sctp_rxtchunks = 0;
639 SCTPS_UPDATE_MIB(sctps, sctpInSCTPPkts, sctp->sctp_ipkts);
640 sctp->sctp_ipkts = 0;
641 SCTPS_UPDATE_MIB(sctps, sctpInCtrlChunks, sctp->sctp_ibchunks);
642 UPDATE_LOCAL(sctp->sctp_cum_ibchunks,
643 sctp->sctp_ibchunks);
644 sctp->sctp_ibchunks = 0;
645 SCTPS_UPDATE_MIB(sctps, sctpInOrderChunks, sctp->sctp_idchunks);
646 UPDATE_LOCAL(sctp->sctp_cum_idchunks,
647 sctp->sctp_idchunks);
648 sctp->sctp_idchunks = 0;
649 SCTPS_UPDATE_MIB(sctps, sctpInUnorderChunks,
650 sctp->sctp_iudchunks);
651 UPDATE_LOCAL(sctp->sctp_cum_iudchunks,
652 sctp->sctp_iudchunks);
653 sctp->sctp_iudchunks = 0;
654 SCTPS_UPDATE_MIB(sctps, sctpFragUsrMsgs, sctp->sctp_fragdmsgs);
655 sctp->sctp_fragdmsgs = 0;
656 SCTPS_UPDATE_MIB(sctps, sctpReasmUsrMsgs, sctp->sctp_reassmsgs);
657 sctp->sctp_reassmsgs = 0;
658
659 sce.sctpAssocId = ntohl(sctp->sctp_lvtag);
660 sce.sctpAssocLocalPort = ntohs(sctp->sctp_connp->conn_lport);
661 sce.sctpAssocRemPort = ntohs(sctp->sctp_connp->conn_fport);
662
663 RUN_SCTP(sctp);
664 if (sctp->sctp_primary != NULL) {
665 fp = sctp->sctp_primary;
666
667 if (IN6_IS_ADDR_V4MAPPED(&fp->sf_faddr)) {
668 sce.sctpAssocRemPrimAddrType =
669 MIB2_SCTP_ADDR_V4;
670 } else {
671 sce.sctpAssocRemPrimAddrType =
672 MIB2_SCTP_ADDR_V6;
673 }
674 sce.sctpAssocRemPrimAddr = fp->sf_faddr;
675 sce.sctpAssocLocPrimAddr = fp->sf_saddr;
676 sce.sctpAssocHeartBeatInterval = TICK_TO_MSEC(
677 fp->sf_hb_interval);
678 } else {
679 sce.sctpAssocRemPrimAddrType = MIB2_SCTP_ADDR_V4;
680 bzero(&sce.sctpAssocRemPrimAddr,
681 sizeof (sce.sctpAssocRemPrimAddr));
682 bzero(&sce.sctpAssocLocPrimAddr,
683 sizeof (sce.sctpAssocLocPrimAddr));
684 sce.sctpAssocHeartBeatInterval =
685 sctps->sctps_heartbeat_interval;
686 }
687
688 /*
689 * Table for local addresses
690 */
691 scanned = 0;
692 for (i = 0; i < SCTP_IPIF_HASH; i++) {
693 sctp_saddr_ipif_t *obj;
694
695 if (sctp->sctp_saddrs[i].ipif_count == 0)
696 continue;
697 obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list);
698 for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) {
699 sctp_ipif_t *sctp_ipif;
700 in6_addr_t addr;
701
702 sctp_ipif = obj->saddr_ipifp;
703 addr = sctp_ipif->sctp_ipif_saddr;
704 scanned++;
705 scle.sctpAssocId = ntohl(sctp->sctp_lvtag);
706 if (IN6_IS_ADDR_V4MAPPED(&addr)) {
707 scle.sctpAssocLocalAddrType =
708 MIB2_SCTP_ADDR_V4;
709 } else {
710 scle.sctpAssocLocalAddrType =
711 MIB2_SCTP_ADDR_V6;
712 }
713 scle.sctpAssocLocalAddr = addr;
714 (void) snmp_append_data2(mp_local_data,
715 &mp_local_tail, (char *)&scle,
716 sizeof (scle));
717 if (scanned >= sctp->sctp_nsaddrs)
718 goto done;
719 obj = list_next(&sctp->
720 sctp_saddrs[i].sctp_ipif_list, obj);
721 }
722 }
723 done:
724 /*
725 * Table for remote addresses
726 */
727 for (fp = sctp->sctp_faddrs; fp; fp = fp->sf_next) {
728 scre.sctpAssocId = ntohl(sctp->sctp_lvtag);
729 if (IN6_IS_ADDR_V4MAPPED(&fp->sf_faddr)) {
730 scre.sctpAssocRemAddrType = MIB2_SCTP_ADDR_V4;
731 } else {
732 scre.sctpAssocRemAddrType = MIB2_SCTP_ADDR_V6;
733 }
734 scre.sctpAssocRemAddr = fp->sf_faddr;
735 if (fp->sf_state == SCTP_FADDRS_ALIVE) {
736 scre.sctpAssocRemAddrActive =
737 scre.sctpAssocRemAddrHBActive =
738 MIB2_SCTP_ACTIVE;
739 } else {
740 scre.sctpAssocRemAddrActive =
741 scre.sctpAssocRemAddrHBActive =
742 MIB2_SCTP_INACTIVE;
743 }
744 scre.sctpAssocRemAddrRTO = TICK_TO_MSEC(fp->sf_rto);
745 scre.sctpAssocRemAddrMaxPathRtx = fp->sf_max_retr;
746 scre.sctpAssocRemAddrRtx = fp->sf_T3expire;
747 (void) snmp_append_data2(mp_rem_data, &mp_rem_tail,
748 (char *)&scre, sizeof (scre));
749 }
750 connp = sctp->sctp_connp;
751 needattr = B_FALSE;
752 bzero(&mlp, sizeof (mlp));
753 if (connp->conn_mlp_type != mlptSingle) {
754 if (connp->conn_mlp_type == mlptShared ||
755 connp->conn_mlp_type == mlptBoth)
756 mlp.tme_flags |= MIB2_TMEF_SHARED;
757 if (connp->conn_mlp_type == mlptPrivate ||
758 connp->conn_mlp_type == mlptBoth)
759 mlp.tme_flags |= MIB2_TMEF_PRIVATE;
760 needattr = B_TRUE;
761 }
762 if (connp->conn_anon_mlp) {
763 mlp.tme_flags |= MIB2_TMEF_ANONMLP;
764 needattr = B_TRUE;
765 }
766 switch (connp->conn_mac_mode) {
767 case CONN_MAC_DEFAULT:
768 break;
769 case CONN_MAC_AWARE:
770 mlp.tme_flags |= MIB2_TMEF_MACEXEMPT;
771 needattr = B_TRUE;
772 break;
773 case CONN_MAC_IMPLICIT:
774 mlp.tme_flags |= MIB2_TMEF_MACIMPLICIT;
775 needattr = B_TRUE;
776 break;
777 }
778 if (sctp->sctp_connp->conn_ixa->ixa_tsl != NULL) {
779 ts_label_t *tsl;
780
781 tsl = sctp->sctp_connp->conn_ixa->ixa_tsl;
782 mlp.tme_flags |= MIB2_TMEF_IS_LABELED;
783 mlp.tme_doi = label2doi(tsl);
784 mlp.tme_label = *label2bslabel(tsl);
785 needattr = B_TRUE;
786 }
787 WAKE_SCTP(sctp);
788 sce.sctpAssocState = sctp_snmp_state(sctp);
789 sce.sctpAssocInStreams = sctp->sctp_num_istr;
790 sce.sctpAssocOutStreams = sctp->sctp_num_ostr;
791 sce.sctpAssocMaxRetr = sctp->sctp_pa_max_rxt;
792 /* A 0 here indicates that no primary process is known */
793 sce.sctpAssocPrimProcess = 0;
794 sce.sctpAssocT1expired = sctp->sctp_T1expire;
795 sce.sctpAssocT2expired = sctp->sctp_T2expire;
796 sce.sctpAssocRtxChunks = sctp->sctp_T3expire;
797 sce.sctpAssocStartTime = sctp->sctp_assoc_start_time;
798 sce.sctpConnEntryInfo.ce_sendq = sctp->sctp_unacked +
799 sctp->sctp_unsent;
800 sce.sctpConnEntryInfo.ce_recvq = sctp->sctp_rxqueued;
801 sce.sctpConnEntryInfo.ce_swnd = sctp->sctp_frwnd;
802 sce.sctpConnEntryInfo.ce_rwnd = sctp->sctp_rwnd;
803 sce.sctpConnEntryInfo.ce_mss = sctp->sctp_mss;
804 (void) snmp_append_data2(mp_conn_data, &mp_conn_tail,
805 (char *)&sce, sizeof (sce));
806 mlp.tme_connidx = idx++;
807 if (needattr)
808 (void) snmp_append_data2(mp_attr_ctl->b_cont,
809 &mp_attr_tail, (char *)&mlp, sizeof (mlp));
810 next_sctp:
811 sctp_prev = sctp;
812 mutex_enter(&sctps->sctps_g_lock);
813 sctp = list_next(&sctps->sctps_g_list, sctp);
814 }
815 mutex_exit(&sctps->sctps_g_lock);
816 if (sctp_prev != NULL)
817 SCTP_REFRELE(sctp_prev);
818
819 sctp_sum_mib(sctps, &sctp_mib);
820
821 optp = (struct opthdr *)&mpctl->b_rptr[sizeof (struct T_optmgmt_ack)];
822 optp->level = MIB2_SCTP;
823 optp->name = 0;
824 (void) snmp_append_data(mpdata, (char *)&sctp_mib, sizeof (sctp_mib));
825 optp->len = msgdsize(mpdata);
826 qreply(q, mpctl);
827
828 /* table of connections... */
829 optp = (struct opthdr *)&mp_conn_ctl->b_rptr[
830 sizeof (struct T_optmgmt_ack)];
831 optp->level = MIB2_SCTP;
832 optp->name = MIB2_SCTP_CONN;
833 optp->len = msgdsize(mp_conn_data);
834 qreply(q, mp_conn_ctl);
835
836 /* assoc local address table */
837 optp = (struct opthdr *)&mp_local_ctl->b_rptr[
838 sizeof (struct T_optmgmt_ack)];
839 optp->level = MIB2_SCTP;
840 optp->name = MIB2_SCTP_CONN_LOCAL;
841 optp->len = msgdsize(mp_local_data);
842 qreply(q, mp_local_ctl);
843
844 /* assoc remote address table */
845 optp = (struct opthdr *)&mp_rem_ctl->b_rptr[
846 sizeof (struct T_optmgmt_ack)];
847 optp->level = MIB2_SCTP;
848 optp->name = MIB2_SCTP_CONN_REMOTE;
849 optp->len = msgdsize(mp_rem_data);
850 qreply(q, mp_rem_ctl);
851
852 /* table of MLP attributes */
853 optp = (struct opthdr *)&mp_attr_ctl->b_rptr[
854 sizeof (struct T_optmgmt_ack)];
855 optp->level = MIB2_SCTP;
856 optp->name = EXPER_XPORT_MLP;
857 optp->len = msgdsize(mp_attr_data);
858 if (optp->len == 0)
859 freemsg(mp_attr_ctl);
860 else
861 qreply(q, mp_attr_ctl);
862
863 return (mp_ret);
864 }
865
866 /* Translate SCTP state to MIB2 SCTP state. */
867 static int
868 sctp_snmp_state(sctp_t *sctp)
869 {
870 if (sctp == NULL)
871 return (0);
872
873 switch (sctp->sctp_state) {
874 case SCTPS_IDLE:
875 case SCTPS_BOUND:
876 return (MIB2_SCTP_closed);
877 case SCTPS_LISTEN:
878 return (MIB2_SCTP_listen);
879 case SCTPS_COOKIE_WAIT:
880 return (MIB2_SCTP_cookieWait);
881 case SCTPS_COOKIE_ECHOED:
882 return (MIB2_SCTP_cookieEchoed);
883 case SCTPS_ESTABLISHED:
884 return (MIB2_SCTP_established);
885 case SCTPS_SHUTDOWN_PENDING:
886 return (MIB2_SCTP_shutdownPending);
887 case SCTPS_SHUTDOWN_SENT:
888 return (MIB2_SCTP_shutdownSent);
889 case SCTPS_SHUTDOWN_RECEIVED:
890 return (MIB2_SCTP_shutdownReceived);
891 case SCTPS_SHUTDOWN_ACK_SENT:
892 return (MIB2_SCTP_shutdownAckSent);
893 default:
894 return (0);
895 }
896 }
897
898 /*
899 * To sum up all MIB2 stats for a sctp_stack_t from all per CPU stats. The
900 * caller should initialize the target mib2_sctp_t properly as this function
901 * just adds up all the per CPU stats.
902 */
903 static void
904 sctp_sum_mib(sctp_stack_t *sctps, mib2_sctp_t *sctp_mib)
905 {
906 int i;
907 int cnt;
908
909 /* Static componets of mib2_sctp_t. */
910 SET_MIB(sctp_mib->sctpRtoAlgorithm, MIB2_SCTP_RTOALGO_VANJ);
911 SET_MIB(sctp_mib->sctpRtoMin, sctps->sctps_rto_ming);
912 SET_MIB(sctp_mib->sctpRtoMax, sctps->sctps_rto_maxg);
913 SET_MIB(sctp_mib->sctpRtoInitial, sctps->sctps_rto_initialg);
914 SET_MIB(sctp_mib->sctpMaxAssocs, -1);
915 SET_MIB(sctp_mib->sctpValCookieLife, sctps->sctps_cookie_life);
916 SET_MIB(sctp_mib->sctpMaxInitRetr, sctps->sctps_max_init_retr);
917
918 /* fixed length structure for IPv4 and IPv6 counters */
919 SET_MIB(sctp_mib->sctpEntrySize, sizeof (mib2_sctpConnEntry_t));
920 SET_MIB(sctp_mib->sctpLocalEntrySize,
921 sizeof (mib2_sctpConnLocalEntry_t));
922 SET_MIB(sctp_mib->sctpRemoteEntrySize,
923 sizeof (mib2_sctpConnRemoteEntry_t));
924
925 /*
926 * sctps_sc_cnt may change in the middle of the loop. It is better
927 * to get its value first.
928 */
929 cnt = sctps->sctps_sc_cnt;
930 for (i = 0; i < cnt; i++)
931 sctp_add_mib(&sctps->sctps_sc[i]->sctp_sc_mib, sctp_mib);
932 }
933
934 static void
935 sctp_add_mib(mib2_sctp_t *from, mib2_sctp_t *to)
936 {
937 to->sctpActiveEstab += from->sctpActiveEstab;
938 to->sctpPassiveEstab += from->sctpPassiveEstab;
939 to->sctpAborted += from->sctpAborted;
940 to->sctpShutdowns += from->sctpShutdowns;
941 to->sctpOutOfBlue += from->sctpOutOfBlue;
942 to->sctpChecksumError += from->sctpChecksumError;
943 to->sctpOutCtrlChunks += from->sctpOutCtrlChunks;
944 to->sctpOutOrderChunks += from->sctpOutOrderChunks;
945 to->sctpOutUnorderChunks += from->sctpOutUnorderChunks;
946 to->sctpRetransChunks += from->sctpRetransChunks;
947 to->sctpOutAck += from->sctpOutAck;
948 to->sctpOutAckDelayed += from->sctpOutAckDelayed;
949 to->sctpOutWinUpdate += from->sctpOutWinUpdate;
950 to->sctpOutFastRetrans += from->sctpOutFastRetrans;
951 to->sctpOutWinProbe += from->sctpOutWinProbe;
952 to->sctpInCtrlChunks += from->sctpInCtrlChunks;
953 to->sctpInOrderChunks += from->sctpInOrderChunks;
954 to->sctpInUnorderChunks += from->sctpInUnorderChunks;
955 to->sctpInAck += from->sctpInAck;
956 to->sctpInDupAck += from->sctpInDupAck;
957 to->sctpInAckUnsent += from->sctpInAckUnsent;
958 to->sctpFragUsrMsgs += from->sctpFragUsrMsgs;
959 to->sctpReasmUsrMsgs += from->sctpReasmUsrMsgs;
960 to->sctpOutSCTPPkts += from->sctpOutSCTPPkts;
961 to->sctpInSCTPPkts += from->sctpInSCTPPkts;
962 to->sctpInInvalidCookie += from->sctpInInvalidCookie;
963 to->sctpTimRetrans += from->sctpTimRetrans;
964 to->sctpTimRetransDrop += from->sctpTimRetransDrop;
965 to->sctpTimHeartBeatProbe += from->sctpTimHeartBeatProbe;
966 to->sctpTimHeartBeatDrop += from->sctpTimHeartBeatDrop;
967 to->sctpListenDrop += from->sctpListenDrop;
968 to->sctpInClosed += from->sctpInClosed;
969 }