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) 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 #include <sys/types.h>
27 #include <sys/tihdr.h>
28 #include <sys/policy.h>
29 #include <sys/tsol/tnet.h>
30
31 #include <inet/common.h>
32 #include <inet/ip.h>
33 #include <inet/tcp.h>
34 #include <inet/tcp_impl.h>
35 #include <inet/tcp_stats.h>
36 #include <inet/kstatcom.h>
37 #include <inet/snmpcom.h>
38
39 static int tcp_kstat_update(kstat_t *kp, int rw);
40 static int tcp_kstat2_update(kstat_t *kp, int rw);
41 static void tcp_sum_mib(tcp_stack_t *, mib2_tcp_t *);
42
43 static void tcp_add_mib(mib2_tcp_t *, mib2_tcp_t *);
44 static void tcp_add_stats(tcp_stat_counter_t *, tcp_stat_t *);
45 static void tcp_clr_stats(tcp_stat_t *);
46
47 tcp_g_stat_t tcp_g_statistics;
48 kstat_t *tcp_g_kstat;
49
50 /* Translate TCP state to MIB2 TCP state. */
51 static int
52 tcp_snmp_state(tcp_t *tcp)
53 {
54 if (tcp == NULL)
55 return (0);
56
57 switch (tcp->tcp_state) {
58 case TCPS_CLOSED:
59 case TCPS_IDLE: /* RFC1213 doesn't have analogue for IDLE & BOUND */
60 case TCPS_BOUND:
61 return (MIB2_TCP_closed);
62 case TCPS_LISTEN:
63 return (MIB2_TCP_listen);
64 case TCPS_SYN_SENT:
65 return (MIB2_TCP_synSent);
66 case TCPS_SYN_RCVD:
67 return (MIB2_TCP_synReceived);
68 case TCPS_ESTABLISHED:
69 return (MIB2_TCP_established);
70 case TCPS_CLOSE_WAIT:
71 return (MIB2_TCP_closeWait);
72 case TCPS_FIN_WAIT_1:
73 return (MIB2_TCP_finWait1);
74 case TCPS_CLOSING:
75 return (MIB2_TCP_closing);
76 case TCPS_LAST_ACK:
77 return (MIB2_TCP_lastAck);
78 case TCPS_FIN_WAIT_2:
79 return (MIB2_TCP_finWait2);
80 case TCPS_TIME_WAIT:
81 return (MIB2_TCP_timeWait);
82 default:
83 return (0);
84 }
85 }
86
87 /*
88 * Return SNMP stuff in buffer in mpdata.
89 */
90 mblk_t *
91 tcp_snmp_get(queue_t *q, mblk_t *mpctl, boolean_t legacy_req)
92 {
93 mblk_t *mpdata;
94 mblk_t *mp_conn_ctl = NULL;
95 mblk_t *mp_conn_tail;
96 mblk_t *mp_attr_ctl = NULL;
97 mblk_t *mp_attr_tail;
98 mblk_t *mp6_conn_ctl = NULL;
99 mblk_t *mp6_conn_tail;
100 mblk_t *mp6_attr_ctl = NULL;
101 mblk_t *mp6_attr_tail;
102 struct opthdr *optp;
103 mib2_tcpConnEntry_t tce;
104 mib2_tcp6ConnEntry_t tce6;
105 mib2_transportMLPEntry_t mlp;
106 connf_t *connfp;
107 int i;
108 boolean_t ispriv;
109 zoneid_t zoneid;
110 int v4_conn_idx;
111 int v6_conn_idx;
112 conn_t *connp = Q_TO_CONN(q);
113 tcp_stack_t *tcps;
114 ip_stack_t *ipst;
115 mblk_t *mp2ctl;
116 mib2_tcp_t tcp_mib;
117 size_t tcp_mib_size, tce_size, tce6_size;
118
119 /*
120 * make a copy of the original message
121 */
122 mp2ctl = copymsg(mpctl);
123
124 if (mpctl == NULL ||
125 (mpdata = mpctl->b_cont) == NULL ||
126 (mp_conn_ctl = copymsg(mpctl)) == NULL ||
127 (mp_attr_ctl = copymsg(mpctl)) == NULL ||
128 (mp6_conn_ctl = copymsg(mpctl)) == NULL ||
129 (mp6_attr_ctl = copymsg(mpctl)) == NULL) {
130 freemsg(mp_conn_ctl);
131 freemsg(mp_attr_ctl);
132 freemsg(mp6_conn_ctl);
133 freemsg(mp6_attr_ctl);
134 freemsg(mpctl);
135 freemsg(mp2ctl);
136 return (NULL);
137 }
138
139 ipst = connp->conn_netstack->netstack_ip;
140 tcps = connp->conn_netstack->netstack_tcp;
141
142 if (legacy_req) {
143 tcp_mib_size = LEGACY_MIB_SIZE(&tcp_mib, mib2_tcp_t);
144 tce_size = LEGACY_MIB_SIZE(&tce, mib2_tcpConnEntry_t);
145 tce6_size = LEGACY_MIB_SIZE(&tce6, mib2_tcp6ConnEntry_t);
146 } else {
147 tcp_mib_size = sizeof (mib2_tcp_t);
148 tce_size = sizeof (mib2_tcpConnEntry_t);
149 tce6_size = sizeof (mib2_tcp6ConnEntry_t);
150 }
151
152 bzero(&tcp_mib, sizeof (tcp_mib));
153
154 /* build table of connections -- need count in fixed part */
155 SET_MIB(tcp_mib.tcpRtoAlgorithm, 4); /* vanj */
156 SET_MIB(tcp_mib.tcpRtoMin, tcps->tcps_rexmit_interval_min);
157 SET_MIB(tcp_mib.tcpRtoMax, tcps->tcps_rexmit_interval_max);
158 SET_MIB(tcp_mib.tcpMaxConn, -1);
159 SET_MIB(tcp_mib.tcpCurrEstab, 0);
160
161 ispriv =
162 secpolicy_ip_config((Q_TO_CONN(q))->conn_cred, B_TRUE) == 0;
163 zoneid = Q_TO_CONN(q)->conn_zoneid;
164
165 v4_conn_idx = v6_conn_idx = 0;
166 mp_conn_tail = mp_attr_tail = mp6_conn_tail = mp6_attr_tail = NULL;
167
168 for (i = 0; i < CONN_G_HASH_SIZE; i++) {
169 ipst = tcps->tcps_netstack->netstack_ip;
170
171 connfp = &ipst->ips_ipcl_globalhash_fanout[i];
172
173 connp = NULL;
174
175 while ((connp =
176 ipcl_get_next_conn(connfp, connp, IPCL_TCPCONN)) != NULL) {
177 tcp_t *tcp;
178 boolean_t needattr;
179
180 if (connp->conn_zoneid != zoneid)
181 continue; /* not in this zone */
182
183 tcp = connp->conn_tcp;
184 TCPS_UPDATE_MIB(tcps, tcpHCInSegs, tcp->tcp_ibsegs);
185 tcp->tcp_ibsegs = 0;
186 TCPS_UPDATE_MIB(tcps, tcpHCOutSegs, tcp->tcp_obsegs);
187 tcp->tcp_obsegs = 0;
188
189 tce6.tcp6ConnState = tce.tcpConnState =
190 tcp_snmp_state(tcp);
191 if (tce.tcpConnState == MIB2_TCP_established ||
192 tce.tcpConnState == MIB2_TCP_closeWait)
193 BUMP_MIB(&tcp_mib, tcpCurrEstab);
194
195 needattr = B_FALSE;
196 bzero(&mlp, sizeof (mlp));
197 if (connp->conn_mlp_type != mlptSingle) {
198 if (connp->conn_mlp_type == mlptShared ||
199 connp->conn_mlp_type == mlptBoth)
200 mlp.tme_flags |= MIB2_TMEF_SHARED;
201 if (connp->conn_mlp_type == mlptPrivate ||
202 connp->conn_mlp_type == mlptBoth)
203 mlp.tme_flags |= MIB2_TMEF_PRIVATE;
204 needattr = B_TRUE;
205 }
206 if (connp->conn_anon_mlp) {
207 mlp.tme_flags |= MIB2_TMEF_ANONMLP;
208 needattr = B_TRUE;
209 }
210 switch (connp->conn_mac_mode) {
211 case CONN_MAC_DEFAULT:
212 break;
213 case CONN_MAC_AWARE:
214 mlp.tme_flags |= MIB2_TMEF_MACEXEMPT;
215 needattr = B_TRUE;
216 break;
217 case CONN_MAC_IMPLICIT:
218 mlp.tme_flags |= MIB2_TMEF_MACIMPLICIT;
219 needattr = B_TRUE;
220 break;
221 }
222 if (connp->conn_ixa->ixa_tsl != NULL) {
223 ts_label_t *tsl;
224
225 tsl = connp->conn_ixa->ixa_tsl;
226 mlp.tme_flags |= MIB2_TMEF_IS_LABELED;
227 mlp.tme_doi = label2doi(tsl);
228 mlp.tme_label = *label2bslabel(tsl);
229 needattr = B_TRUE;
230 }
231
232 /* Create a message to report on IPv6 entries */
233 if (connp->conn_ipversion == IPV6_VERSION) {
234 tce6.tcp6ConnLocalAddress = connp->conn_laddr_v6;
235 tce6.tcp6ConnRemAddress = connp->conn_faddr_v6;
236 tce6.tcp6ConnLocalPort = ntohs(connp->conn_lport);
237 tce6.tcp6ConnRemPort = ntohs(connp->conn_fport);
238 if (connp->conn_ixa->ixa_flags & IXAF_SCOPEID_SET) {
239 tce6.tcp6ConnIfIndex =
240 connp->conn_ixa->ixa_scopeid;
241 } else {
242 tce6.tcp6ConnIfIndex = connp->conn_bound_if;
243 }
244 /* Don't want just anybody seeing these... */
245 if (ispriv) {
246 tce6.tcp6ConnEntryInfo.ce_snxt =
247 tcp->tcp_snxt;
248 tce6.tcp6ConnEntryInfo.ce_suna =
249 tcp->tcp_suna;
250 tce6.tcp6ConnEntryInfo.ce_rnxt =
251 tcp->tcp_rnxt;
252 tce6.tcp6ConnEntryInfo.ce_rack =
253 tcp->tcp_rack;
254 } else {
255 /*
256 * Netstat, unfortunately, uses this to
257 * get send/receive queue sizes. How to fix?
258 * Why not compute the difference only?
259 */
260 tce6.tcp6ConnEntryInfo.ce_snxt =
261 tcp->tcp_snxt - tcp->tcp_suna;
262 tce6.tcp6ConnEntryInfo.ce_suna = 0;
263 tce6.tcp6ConnEntryInfo.ce_rnxt =
264 tcp->tcp_rnxt - tcp->tcp_rack;
265 tce6.tcp6ConnEntryInfo.ce_rack = 0;
266 }
267
268 tce6.tcp6ConnEntryInfo.ce_swnd = tcp->tcp_swnd;
269 tce6.tcp6ConnEntryInfo.ce_rwnd = tcp->tcp_rwnd;
270 tce6.tcp6ConnEntryInfo.ce_rto = tcp->tcp_rto;
271 tce6.tcp6ConnEntryInfo.ce_mss = tcp->tcp_mss;
272 tce6.tcp6ConnEntryInfo.ce_state = tcp->tcp_state;
273
274 tce6.tcp6ConnCreationProcess =
275 (connp->conn_cpid < 0) ? MIB2_UNKNOWN_PROCESS :
276 connp->conn_cpid;
277 tce6.tcp6ConnCreationTime = connp->conn_open_time;
278
279 (void) snmp_append_data2(mp6_conn_ctl->b_cont,
280 &mp6_conn_tail, (char *)&tce6, tce6_size);
281
282 mlp.tme_connidx = v6_conn_idx++;
283 if (needattr)
284 (void) snmp_append_data2(mp6_attr_ctl->b_cont,
285 &mp6_attr_tail, (char *)&mlp, sizeof (mlp));
286 }
287 /*
288 * Create an IPv4 table entry for IPv4 entries and also
289 * for IPv6 entries which are bound to in6addr_any
290 * but don't have IPV6_V6ONLY set.
291 * (i.e. anything an IPv4 peer could connect to)
292 */
293 if (connp->conn_ipversion == IPV4_VERSION ||
294 (tcp->tcp_state <= TCPS_LISTEN &&
295 !connp->conn_ipv6_v6only &&
296 IN6_IS_ADDR_UNSPECIFIED(&connp->conn_laddr_v6))) {
297 if (connp->conn_ipversion == IPV6_VERSION) {
298 tce.tcpConnRemAddress = INADDR_ANY;
299 tce.tcpConnLocalAddress = INADDR_ANY;
300 } else {
301 tce.tcpConnRemAddress =
302 connp->conn_faddr_v4;
303 tce.tcpConnLocalAddress =
304 connp->conn_laddr_v4;
305 }
306 tce.tcpConnLocalPort = ntohs(connp->conn_lport);
307 tce.tcpConnRemPort = ntohs(connp->conn_fport);
308 /* Don't want just anybody seeing these... */
309 if (ispriv) {
310 tce.tcpConnEntryInfo.ce_snxt =
311 tcp->tcp_snxt;
312 tce.tcpConnEntryInfo.ce_suna =
313 tcp->tcp_suna;
314 tce.tcpConnEntryInfo.ce_rnxt =
315 tcp->tcp_rnxt;
316 tce.tcpConnEntryInfo.ce_rack =
317 tcp->tcp_rack;
318 } else {
319 /*
320 * Netstat, unfortunately, uses this to
321 * get send/receive queue sizes. How
322 * to fix?
323 * Why not compute the difference only?
324 */
325 tce.tcpConnEntryInfo.ce_snxt =
326 tcp->tcp_snxt - tcp->tcp_suna;
327 tce.tcpConnEntryInfo.ce_suna = 0;
328 tce.tcpConnEntryInfo.ce_rnxt =
329 tcp->tcp_rnxt - tcp->tcp_rack;
330 tce.tcpConnEntryInfo.ce_rack = 0;
331 }
332
333 tce.tcpConnEntryInfo.ce_swnd = tcp->tcp_swnd;
334 tce.tcpConnEntryInfo.ce_rwnd = tcp->tcp_rwnd;
335 tce.tcpConnEntryInfo.ce_rto = tcp->tcp_rto;
336 tce.tcpConnEntryInfo.ce_mss = tcp->tcp_mss;
337 tce.tcpConnEntryInfo.ce_state =
338 tcp->tcp_state;
339
340 tce.tcpConnCreationProcess =
341 (connp->conn_cpid < 0) ?
342 MIB2_UNKNOWN_PROCESS :
343 connp->conn_cpid;
344 tce.tcpConnCreationTime = connp->conn_open_time;
345
346 (void) snmp_append_data2(mp_conn_ctl->b_cont,
347 &mp_conn_tail, (char *)&tce, tce_size);
348
349 mlp.tme_connidx = v4_conn_idx++;
350 if (needattr)
351 (void) snmp_append_data2(
352 mp_attr_ctl->b_cont,
353 &mp_attr_tail, (char *)&mlp,
354 sizeof (mlp));
355 }
356 }
357 }
358
359 tcp_sum_mib(tcps, &tcp_mib);
360
361 /* Fixed length structure for IPv4 and IPv6 counters */
362 SET_MIB(tcp_mib.tcpConnTableSize, tce_size);
363 SET_MIB(tcp_mib.tcp6ConnTableSize, tce6_size);
364
365 /*
366 * Synchronize 32- and 64-bit counters. Note that tcpInSegs and
367 * tcpOutSegs are not updated anywhere in TCP. The new 64 bits
368 * counters are used. Hence the old counters' values in tcp_sc_mib
369 * are always 0.
370 */
371 SYNC32_MIB(&tcp_mib, tcpInSegs, tcpHCInSegs);
372 SYNC32_MIB(&tcp_mib, tcpOutSegs, tcpHCOutSegs);
373
374 optp = (struct opthdr *)&mpctl->b_rptr[sizeof (struct T_optmgmt_ack)];
375 optp->level = MIB2_TCP;
376 optp->name = 0;
377 (void) snmp_append_data(mpdata, (char *)&tcp_mib, tcp_mib_size);
378 optp->len = msgdsize(mpdata);
379 qreply(q, mpctl);
380
381 /* table of connections... */
382 optp = (struct opthdr *)&mp_conn_ctl->b_rptr[
383 sizeof (struct T_optmgmt_ack)];
384 optp->level = MIB2_TCP;
385 optp->name = MIB2_TCP_CONN;
386 optp->len = msgdsize(mp_conn_ctl->b_cont);
387 qreply(q, mp_conn_ctl);
388
389 /* table of MLP attributes... */
390 optp = (struct opthdr *)&mp_attr_ctl->b_rptr[
391 sizeof (struct T_optmgmt_ack)];
392 optp->level = MIB2_TCP;
393 optp->name = EXPER_XPORT_MLP;
394 optp->len = msgdsize(mp_attr_ctl->b_cont);
395 if (optp->len == 0)
396 freemsg(mp_attr_ctl);
397 else
398 qreply(q, mp_attr_ctl);
399
400 /* table of IPv6 connections... */
401 optp = (struct opthdr *)&mp6_conn_ctl->b_rptr[
402 sizeof (struct T_optmgmt_ack)];
403 optp->level = MIB2_TCP6;
404 optp->name = MIB2_TCP6_CONN;
405 optp->len = msgdsize(mp6_conn_ctl->b_cont);
406 qreply(q, mp6_conn_ctl);
407
408 /* table of IPv6 MLP attributes... */
409 optp = (struct opthdr *)&mp6_attr_ctl->b_rptr[
410 sizeof (struct T_optmgmt_ack)];
411 optp->level = MIB2_TCP6;
412 optp->name = EXPER_XPORT_MLP;
413 optp->len = msgdsize(mp6_attr_ctl->b_cont);
414 if (optp->len == 0)
415 freemsg(mp6_attr_ctl);
416 else
417 qreply(q, mp6_attr_ctl);
418 return (mp2ctl);
419 }
420
421 /* Return 0 if invalid set request, 1 otherwise, including non-tcp requests */
422 /* ARGSUSED */
423 int
424 tcp_snmp_set(queue_t *q, int level, int name, uchar_t *ptr, int len)
425 {
426 mib2_tcpConnEntry_t *tce = (mib2_tcpConnEntry_t *)ptr;
427
428 switch (level) {
429 case MIB2_TCP:
430 switch (name) {
431 case 13:
432 if (tce->tcpConnState != MIB2_TCP_deleteTCB)
433 return (0);
434 /* TODO: delete entry defined by tce */
435 return (1);
436 default:
437 return (0);
438 }
439 default:
440 return (1);
441 }
442 }
443
444 /*
445 * TCP Kstats implementation
446 */
447 void *
448 tcp_kstat_init(netstackid_t stackid)
449 {
450 kstat_t *ksp;
451
452 tcp_named_kstat_t template = {
453 { "rtoAlgorithm", KSTAT_DATA_INT32, 0 },
454 { "rtoMin", KSTAT_DATA_INT32, 0 },
455 { "rtoMax", KSTAT_DATA_INT32, 0 },
456 { "maxConn", KSTAT_DATA_INT32, 0 },
457 { "activeOpens", KSTAT_DATA_UINT32, 0 },
458 { "passiveOpens", KSTAT_DATA_UINT32, 0 },
459 { "attemptFails", KSTAT_DATA_UINT32, 0 },
460 { "estabResets", KSTAT_DATA_UINT32, 0 },
461 { "currEstab", KSTAT_DATA_UINT32, 0 },
462 { "inSegs", KSTAT_DATA_UINT64, 0 },
463 { "outSegs", KSTAT_DATA_UINT64, 0 },
464 { "retransSegs", KSTAT_DATA_UINT32, 0 },
465 { "connTableSize", KSTAT_DATA_INT32, 0 },
466 { "outRsts", KSTAT_DATA_UINT32, 0 },
467 { "outDataSegs", KSTAT_DATA_UINT32, 0 },
468 { "outDataBytes", KSTAT_DATA_UINT32, 0 },
469 { "retransBytes", KSTAT_DATA_UINT32, 0 },
470 { "outAck", KSTAT_DATA_UINT32, 0 },
471 { "outAckDelayed", KSTAT_DATA_UINT32, 0 },
472 { "outUrg", KSTAT_DATA_UINT32, 0 },
473 { "outWinUpdate", KSTAT_DATA_UINT32, 0 },
474 { "outWinProbe", KSTAT_DATA_UINT32, 0 },
475 { "outControl", KSTAT_DATA_UINT32, 0 },
476 { "outFastRetrans", KSTAT_DATA_UINT32, 0 },
477 { "inAckSegs", KSTAT_DATA_UINT32, 0 },
478 { "inAckBytes", KSTAT_DATA_UINT32, 0 },
479 { "inDupAck", KSTAT_DATA_UINT32, 0 },
480 { "inAckUnsent", KSTAT_DATA_UINT32, 0 },
481 { "inDataInorderSegs", KSTAT_DATA_UINT32, 0 },
482 { "inDataInorderBytes", KSTAT_DATA_UINT32, 0 },
483 { "inDataUnorderSegs", KSTAT_DATA_UINT32, 0 },
484 { "inDataUnorderBytes", KSTAT_DATA_UINT32, 0 },
485 { "inDataDupSegs", KSTAT_DATA_UINT32, 0 },
486 { "inDataDupBytes", KSTAT_DATA_UINT32, 0 },
487 { "inDataPartDupSegs", KSTAT_DATA_UINT32, 0 },
488 { "inDataPartDupBytes", KSTAT_DATA_UINT32, 0 },
489 { "inDataPastWinSegs", KSTAT_DATA_UINT32, 0 },
490 { "inDataPastWinBytes", KSTAT_DATA_UINT32, 0 },
491 { "inWinProbe", KSTAT_DATA_UINT32, 0 },
492 { "inWinUpdate", KSTAT_DATA_UINT32, 0 },
493 { "inClosed", KSTAT_DATA_UINT32, 0 },
494 { "rttUpdate", KSTAT_DATA_UINT32, 0 },
495 { "rttNoUpdate", KSTAT_DATA_UINT32, 0 },
496 { "timRetrans", KSTAT_DATA_UINT32, 0 },
497 { "timRetransDrop", KSTAT_DATA_UINT32, 0 },
498 { "timKeepalive", KSTAT_DATA_UINT32, 0 },
499 { "timKeepaliveProbe", KSTAT_DATA_UINT32, 0 },
500 { "timKeepaliveDrop", KSTAT_DATA_UINT32, 0 },
501 { "listenDrop", KSTAT_DATA_UINT32, 0 },
502 { "listenDropQ0", KSTAT_DATA_UINT32, 0 },
503 { "halfOpenDrop", KSTAT_DATA_UINT32, 0 },
504 { "outSackRetransSegs", KSTAT_DATA_UINT32, 0 },
505 { "connTableSize6", KSTAT_DATA_INT32, 0 }
506 };
507
508 ksp = kstat_create_netstack(TCP_MOD_NAME, 0, TCP_MOD_NAME, "mib2",
509 KSTAT_TYPE_NAMED, NUM_OF_FIELDS(tcp_named_kstat_t), 0, stackid);
510
511 if (ksp == NULL)
512 return (NULL);
513
514 template.rtoAlgorithm.value.ui32 = 4;
515 template.maxConn.value.i32 = -1;
516
517 bcopy(&template, ksp->ks_data, sizeof (template));
518 ksp->ks_update = tcp_kstat_update;
519 ksp->ks_private = (void *)(uintptr_t)stackid;
520
521 kstat_install(ksp);
522 return (ksp);
523 }
524
525 void
526 tcp_kstat_fini(netstackid_t stackid, kstat_t *ksp)
527 {
528 if (ksp != NULL) {
529 ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private);
530 kstat_delete_netstack(ksp, stackid);
531 }
532 }
533
534 static int
535 tcp_kstat_update(kstat_t *kp, int rw)
536 {
537 tcp_named_kstat_t *tcpkp;
538 tcp_t *tcp;
539 connf_t *connfp;
540 conn_t *connp;
541 int i;
542 netstackid_t stackid = (netstackid_t)(uintptr_t)kp->ks_private;
543 netstack_t *ns;
544 tcp_stack_t *tcps;
545 ip_stack_t *ipst;
546 mib2_tcp_t tcp_mib;
547
548 if (rw == KSTAT_WRITE)
549 return (EACCES);
550
551 ns = netstack_find_by_stackid(stackid);
552 if (ns == NULL)
553 return (-1);
554 tcps = ns->netstack_tcp;
555 if (tcps == NULL) {
556 netstack_rele(ns);
557 return (-1);
558 }
559
560 tcpkp = (tcp_named_kstat_t *)kp->ks_data;
561
562 tcpkp->currEstab.value.ui32 = 0;
563 tcpkp->rtoMin.value.ui32 = tcps->tcps_rexmit_interval_min;
564 tcpkp->rtoMax.value.ui32 = tcps->tcps_rexmit_interval_max;
565
566 ipst = ns->netstack_ip;
567
568 for (i = 0; i < CONN_G_HASH_SIZE; i++) {
569 connfp = &ipst->ips_ipcl_globalhash_fanout[i];
570 connp = NULL;
571 while ((connp =
572 ipcl_get_next_conn(connfp, connp, IPCL_TCPCONN)) != NULL) {
573 tcp = connp->conn_tcp;
574 switch (tcp_snmp_state(tcp)) {
575 case MIB2_TCP_established:
576 case MIB2_TCP_closeWait:
577 tcpkp->currEstab.value.ui32++;
578 break;
579 }
580 }
581 }
582 bzero(&tcp_mib, sizeof (tcp_mib));
583 tcp_sum_mib(tcps, &tcp_mib);
584
585 /* Fixed length structure for IPv4 and IPv6 counters */
586 SET_MIB(tcp_mib.tcpConnTableSize, sizeof (mib2_tcpConnEntry_t));
587 SET_MIB(tcp_mib.tcp6ConnTableSize, sizeof (mib2_tcp6ConnEntry_t));
588
589 tcpkp->activeOpens.value.ui32 = tcp_mib.tcpActiveOpens;
590 tcpkp->passiveOpens.value.ui32 = tcp_mib.tcpPassiveOpens;
591 tcpkp->attemptFails.value.ui32 = tcp_mib.tcpAttemptFails;
592 tcpkp->estabResets.value.ui32 = tcp_mib.tcpEstabResets;
593 tcpkp->inSegs.value.ui64 = tcp_mib.tcpHCInSegs;
594 tcpkp->outSegs.value.ui64 = tcp_mib.tcpHCOutSegs;
595 tcpkp->retransSegs.value.ui32 = tcp_mib.tcpRetransSegs;
596 tcpkp->connTableSize.value.i32 = tcp_mib.tcpConnTableSize;
597 tcpkp->outRsts.value.ui32 = tcp_mib.tcpOutRsts;
598 tcpkp->outDataSegs.value.ui32 = tcp_mib.tcpOutDataSegs;
599 tcpkp->outDataBytes.value.ui32 = tcp_mib.tcpOutDataBytes;
600 tcpkp->retransBytes.value.ui32 = tcp_mib.tcpRetransBytes;
601 tcpkp->outAck.value.ui32 = tcp_mib.tcpOutAck;
602 tcpkp->outAckDelayed.value.ui32 = tcp_mib.tcpOutAckDelayed;
603 tcpkp->outUrg.value.ui32 = tcp_mib.tcpOutUrg;
604 tcpkp->outWinUpdate.value.ui32 = tcp_mib.tcpOutWinUpdate;
605 tcpkp->outWinProbe.value.ui32 = tcp_mib.tcpOutWinProbe;
606 tcpkp->outControl.value.ui32 = tcp_mib.tcpOutControl;
607 tcpkp->outFastRetrans.value.ui32 = tcp_mib.tcpOutFastRetrans;
608 tcpkp->inAckSegs.value.ui32 = tcp_mib.tcpInAckSegs;
609 tcpkp->inAckBytes.value.ui32 = tcp_mib.tcpInAckBytes;
610 tcpkp->inDupAck.value.ui32 = tcp_mib.tcpInDupAck;
611 tcpkp->inAckUnsent.value.ui32 = tcp_mib.tcpInAckUnsent;
612 tcpkp->inDataInorderSegs.value.ui32 = tcp_mib.tcpInDataInorderSegs;
613 tcpkp->inDataInorderBytes.value.ui32 = tcp_mib.tcpInDataInorderBytes;
614 tcpkp->inDataUnorderSegs.value.ui32 = tcp_mib.tcpInDataUnorderSegs;
615 tcpkp->inDataUnorderBytes.value.ui32 = tcp_mib.tcpInDataUnorderBytes;
616 tcpkp->inDataDupSegs.value.ui32 = tcp_mib.tcpInDataDupSegs;
617 tcpkp->inDataDupBytes.value.ui32 = tcp_mib.tcpInDataDupBytes;
618 tcpkp->inDataPartDupSegs.value.ui32 = tcp_mib.tcpInDataPartDupSegs;
619 tcpkp->inDataPartDupBytes.value.ui32 = tcp_mib.tcpInDataPartDupBytes;
620 tcpkp->inDataPastWinSegs.value.ui32 = tcp_mib.tcpInDataPastWinSegs;
621 tcpkp->inDataPastWinBytes.value.ui32 = tcp_mib.tcpInDataPastWinBytes;
622 tcpkp->inWinProbe.value.ui32 = tcp_mib.tcpInWinProbe;
623 tcpkp->inWinUpdate.value.ui32 = tcp_mib.tcpInWinUpdate;
624 tcpkp->inClosed.value.ui32 = tcp_mib.tcpInClosed;
625 tcpkp->rttNoUpdate.value.ui32 = tcp_mib.tcpRttNoUpdate;
626 tcpkp->rttUpdate.value.ui32 = tcp_mib.tcpRttUpdate;
627 tcpkp->timRetrans.value.ui32 = tcp_mib.tcpTimRetrans;
628 tcpkp->timRetransDrop.value.ui32 = tcp_mib.tcpTimRetransDrop;
629 tcpkp->timKeepalive.value.ui32 = tcp_mib.tcpTimKeepalive;
630 tcpkp->timKeepaliveProbe.value.ui32 = tcp_mib.tcpTimKeepaliveProbe;
631 tcpkp->timKeepaliveDrop.value.ui32 = tcp_mib.tcpTimKeepaliveDrop;
632 tcpkp->listenDrop.value.ui32 = tcp_mib.tcpListenDrop;
633 tcpkp->listenDropQ0.value.ui32 = tcp_mib.tcpListenDropQ0;
634 tcpkp->halfOpenDrop.value.ui32 = tcp_mib.tcpHalfOpenDrop;
635 tcpkp->outSackRetransSegs.value.ui32 = tcp_mib.tcpOutSackRetransSegs;
636 tcpkp->connTableSize6.value.i32 = tcp_mib.tcp6ConnTableSize;
637
638 netstack_rele(ns);
639 return (0);
640 }
641
642 /*
643 * kstats related to squeues i.e. not per IP instance
644 */
645 void *
646 tcp_g_kstat_init(tcp_g_stat_t *tcp_g_statp)
647 {
648 kstat_t *ksp;
649
650 tcp_g_stat_t template = {
651 { "tcp_timermp_alloced", KSTAT_DATA_UINT64 },
652 { "tcp_timermp_allocfail", KSTAT_DATA_UINT64 },
653 { "tcp_timermp_allocdblfail", KSTAT_DATA_UINT64 },
654 { "tcp_freelist_cleanup", KSTAT_DATA_UINT64 },
655 };
656
657 ksp = kstat_create(TCP_MOD_NAME, 0, "tcpstat_g", "net",
658 KSTAT_TYPE_NAMED, sizeof (template) / sizeof (kstat_named_t),
659 KSTAT_FLAG_VIRTUAL);
660
661 if (ksp == NULL)
662 return (NULL);
663
664 bcopy(&template, tcp_g_statp, sizeof (template));
665 ksp->ks_data = (void *)tcp_g_statp;
666
667 kstat_install(ksp);
668 return (ksp);
669 }
670
671 void
672 tcp_g_kstat_fini(kstat_t *ksp)
673 {
674 if (ksp != NULL) {
675 kstat_delete(ksp);
676 }
677 }
678
679 void *
680 tcp_kstat2_init(netstackid_t stackid)
681 {
682 kstat_t *ksp;
683
684 tcp_stat_t template = {
685 { "tcp_time_wait_syn_success", KSTAT_DATA_UINT64, 0 },
686 { "tcp_clean_death_nondetached", KSTAT_DATA_UINT64, 0 },
687 { "tcp_eager_blowoff_q", KSTAT_DATA_UINT64, 0 },
688 { "tcp_eager_blowoff_q0", KSTAT_DATA_UINT64, 0 },
689 { "tcp_no_listener", KSTAT_DATA_UINT64, 0 },
690 { "tcp_listendrop", KSTAT_DATA_UINT64, 0 },
691 { "tcp_listendropq0", KSTAT_DATA_UINT64, 0 },
692 { "tcp_wsrv_called", KSTAT_DATA_UINT64, 0 },
693 { "tcp_flwctl_on", KSTAT_DATA_UINT64, 0 },
694 { "tcp_timer_fire_early", KSTAT_DATA_UINT64, 0 },
695 { "tcp_timer_fire_miss", KSTAT_DATA_UINT64, 0 },
696 { "tcp_zcopy_on", KSTAT_DATA_UINT64, 0 },
697 { "tcp_zcopy_off", KSTAT_DATA_UINT64, 0 },
698 { "tcp_zcopy_backoff", KSTAT_DATA_UINT64, 0 },
699 { "tcp_fusion_flowctl", KSTAT_DATA_UINT64, 0 },
700 { "tcp_fusion_backenabled", KSTAT_DATA_UINT64, 0 },
701 { "tcp_fusion_urg", KSTAT_DATA_UINT64, 0 },
702 { "tcp_fusion_putnext", KSTAT_DATA_UINT64, 0 },
703 { "tcp_fusion_unfusable", KSTAT_DATA_UINT64, 0 },
704 { "tcp_fusion_aborted", KSTAT_DATA_UINT64, 0 },
705 { "tcp_fusion_unqualified", KSTAT_DATA_UINT64, 0 },
706 { "tcp_fusion_rrw_busy", KSTAT_DATA_UINT64, 0 },
707 { "tcp_fusion_rrw_msgcnt", KSTAT_DATA_UINT64, 0 },
708 { "tcp_fusion_rrw_plugged", KSTAT_DATA_UINT64, 0 },
709 { "tcp_in_ack_unsent_drop", KSTAT_DATA_UINT64, 0 },
710 { "tcp_sock_fallback", KSTAT_DATA_UINT64, 0 },
711 { "tcp_lso_enabled", KSTAT_DATA_UINT64, 0 },
712 { "tcp_lso_disabled", KSTAT_DATA_UINT64, 0 },
713 { "tcp_lso_times", KSTAT_DATA_UINT64, 0 },
714 { "tcp_lso_pkt_out", KSTAT_DATA_UINT64, 0 },
715 { "tcp_listen_cnt_drop", KSTAT_DATA_UINT64, 0 },
716 { "tcp_listen_mem_drop", KSTAT_DATA_UINT64, 0 },
717 { "tcp_zwin_mem_drop", KSTAT_DATA_UINT64, 0 },
718 { "tcp_zwin_ack_syn", KSTAT_DATA_UINT64, 0 },
719 { "tcp_rst_unsent", KSTAT_DATA_UINT64, 0 },
720 { "tcp_reclaim_cnt", KSTAT_DATA_UINT64, 0 },
721 { "tcp_reass_timeout", KSTAT_DATA_UINT64, 0 },
722 #ifdef TCP_DEBUG_COUNTER
723 { "tcp_time_wait", KSTAT_DATA_UINT64, 0 },
724 { "tcp_rput_time_wait", KSTAT_DATA_UINT64, 0 },
725 { "tcp_detach_time_wait", KSTAT_DATA_UINT64, 0 },
726 { "tcp_timeout_calls", KSTAT_DATA_UINT64, 0 },
727 { "tcp_timeout_cached_alloc", KSTAT_DATA_UINT64, 0 },
728 { "tcp_timeout_cancel_reqs", KSTAT_DATA_UINT64, 0 },
729 { "tcp_timeout_canceled", KSTAT_DATA_UINT64, 0 },
730 { "tcp_timermp_freed", KSTAT_DATA_UINT64, 0 },
731 { "tcp_push_timer_cnt", KSTAT_DATA_UINT64, 0 },
732 { "tcp_ack_timer_cnt", KSTAT_DATA_UINT64, 0 },
733 #endif
734 };
735
736 ksp = kstat_create_netstack(TCP_MOD_NAME, 0, "tcpstat", "net",
737 KSTAT_TYPE_NAMED, sizeof (template) / sizeof (kstat_named_t), 0,
738 stackid);
739
740 if (ksp == NULL)
741 return (NULL);
742
743 bcopy(&template, ksp->ks_data, sizeof (template));
744 ksp->ks_private = (void *)(uintptr_t)stackid;
745 ksp->ks_update = tcp_kstat2_update;
746
747 kstat_install(ksp);
748 return (ksp);
749 }
750
751 void
752 tcp_kstat2_fini(netstackid_t stackid, kstat_t *ksp)
753 {
754 if (ksp != NULL) {
755 ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private);
756 kstat_delete_netstack(ksp, stackid);
757 }
758 }
759
760 /*
761 * Sum up all per CPU tcp_stat_t kstat counters.
762 */
763 static int
764 tcp_kstat2_update(kstat_t *kp, int rw)
765 {
766 netstackid_t stackid = (netstackid_t)(uintptr_t)kp->ks_private;
767 netstack_t *ns;
768 tcp_stack_t *tcps;
769 tcp_stat_t *stats;
770 int i;
771 int cnt;
772
773 if (rw == KSTAT_WRITE)
774 return (EACCES);
775
776 ns = netstack_find_by_stackid(stackid);
777 if (ns == NULL)
778 return (-1);
779 tcps = ns->netstack_tcp;
780 if (tcps == NULL) {
781 netstack_rele(ns);
782 return (-1);
783 }
784
785 stats = (tcp_stat_t *)kp->ks_data;
786 tcp_clr_stats(stats);
787
788 /*
789 * tcps_sc_cnt may change in the middle of the loop. It is better
790 * to get its value first.
791 */
792 cnt = tcps->tcps_sc_cnt;
793 for (i = 0; i < cnt; i++)
794 tcp_add_stats(&tcps->tcps_sc[i]->tcp_sc_stats, stats);
795
796 netstack_rele(ns);
797 return (0);
798 }
799
800 /*
801 * To add stats from one mib2_tcp_t to another. Static fields are not added.
802 * The caller should set them up propertly.
803 */
804 void
805 tcp_add_mib(mib2_tcp_t *from, mib2_tcp_t *to)
806 {
807 to->tcpActiveOpens += from->tcpActiveOpens;
808 to->tcpPassiveOpens += from->tcpPassiveOpens;
809 to->tcpAttemptFails += from->tcpAttemptFails;
810 to->tcpEstabResets += from->tcpEstabResets;
811 to->tcpInSegs += from->tcpInSegs;
812 to->tcpOutSegs += from->tcpOutSegs;
813 to->tcpRetransSegs += from->tcpRetransSegs;
814 to->tcpOutRsts += from->tcpOutRsts;
815
816 to->tcpOutDataSegs += from->tcpOutDataSegs;
817 to->tcpOutDataBytes += from->tcpOutDataBytes;
818 to->tcpRetransBytes += from->tcpRetransBytes;
819 to->tcpOutAck += from->tcpOutAck;
820 to->tcpOutAckDelayed += from->tcpOutAckDelayed;
821 to->tcpOutUrg += from->tcpOutUrg;
822 to->tcpOutWinUpdate += from->tcpOutWinUpdate;
823 to->tcpOutWinProbe += from->tcpOutWinProbe;
824 to->tcpOutControl += from->tcpOutControl;
825 to->tcpOutFastRetrans += from->tcpOutFastRetrans;
826
827 to->tcpInAckBytes += from->tcpInAckBytes;
828 to->tcpInDupAck += from->tcpInDupAck;
829 to->tcpInAckUnsent += from->tcpInAckUnsent;
830 to->tcpInDataInorderSegs += from->tcpInDataInorderSegs;
831 to->tcpInDataInorderBytes += from->tcpInDataInorderBytes;
832 to->tcpInDataUnorderSegs += from->tcpInDataUnorderSegs;
833 to->tcpInDataUnorderBytes += from->tcpInDataUnorderBytes;
834 to->tcpInDataDupSegs += from->tcpInDataDupSegs;
835 to->tcpInDataDupBytes += from->tcpInDataDupBytes;
836 to->tcpInDataPartDupSegs += from->tcpInDataPartDupSegs;
837 to->tcpInDataPartDupBytes += from->tcpInDataPartDupBytes;
838 to->tcpInDataPastWinSegs += from->tcpInDataPastWinSegs;
839 to->tcpInDataPastWinBytes += from->tcpInDataPastWinBytes;
840 to->tcpInWinProbe += from->tcpInWinProbe;
841 to->tcpInWinUpdate += from->tcpInWinUpdate;
842 to->tcpInClosed += from->tcpInClosed;
843
844 to->tcpRttNoUpdate += from->tcpRttNoUpdate;
845 to->tcpRttUpdate += from->tcpRttUpdate;
846 to->tcpTimRetrans += from->tcpTimRetrans;
847 to->tcpTimRetransDrop += from->tcpTimRetransDrop;
848 to->tcpTimKeepalive += from->tcpTimKeepalive;
849 to->tcpTimKeepaliveProbe += from->tcpTimKeepaliveProbe;
850 to->tcpTimKeepaliveDrop += from->tcpTimKeepaliveDrop;
851 to->tcpListenDrop += from->tcpListenDrop;
852 to->tcpListenDropQ0 += from->tcpListenDropQ0;
853 to->tcpHalfOpenDrop += from->tcpHalfOpenDrop;
854 to->tcpOutSackRetransSegs += from->tcpOutSackRetransSegs;
855 to->tcpHCInSegs += from->tcpHCInSegs;
856 to->tcpHCOutSegs += from->tcpHCOutSegs;
857 }
858
859 /*
860 * To sum up all MIB2 stats for a tcp_stack_t from all per CPU stats. The
861 * caller should initialize the target mib2_tcp_t properly as this function
862 * just adds up all the per CPU stats.
863 */
864 static void
865 tcp_sum_mib(tcp_stack_t *tcps, mib2_tcp_t *tcp_mib)
866 {
867 int i;
868 int cnt;
869
870 /*
871 * tcps_sc_cnt may change in the middle of the loop. It is better
872 * to get its value first.
873 */
874 cnt = tcps->tcps_sc_cnt;
875 for (i = 0; i < cnt; i++)
876 tcp_add_mib(&tcps->tcps_sc[i]->tcp_sc_mib, tcp_mib);
877 }
878
879 /*
880 * To set all tcp_stat_t counters to 0.
881 */
882 static void
883 tcp_clr_stats(tcp_stat_t *stats)
884 {
885 stats->tcp_time_wait_syn_success.value.ui64 = 0;
886 stats->tcp_clean_death_nondetached.value.ui64 = 0;
887 stats->tcp_eager_blowoff_q.value.ui64 = 0;
888 stats->tcp_eager_blowoff_q0.value.ui64 = 0;
889 stats->tcp_no_listener.value.ui64 = 0;
890 stats->tcp_listendrop.value.ui64 = 0;
891 stats->tcp_listendropq0.value.ui64 = 0;
892 stats->tcp_wsrv_called.value.ui64 = 0;
893 stats->tcp_flwctl_on.value.ui64 = 0;
894 stats->tcp_timer_fire_early.value.ui64 = 0;
895 stats->tcp_timer_fire_miss.value.ui64 = 0;
896 stats->tcp_zcopy_on.value.ui64 = 0;
897 stats->tcp_zcopy_off.value.ui64 = 0;
898 stats->tcp_zcopy_backoff.value.ui64 = 0;
899 stats->tcp_fusion_flowctl.value.ui64 = 0;
900 stats->tcp_fusion_backenabled.value.ui64 = 0;
901 stats->tcp_fusion_urg.value.ui64 = 0;
902 stats->tcp_fusion_putnext.value.ui64 = 0;
903 stats->tcp_fusion_unfusable.value.ui64 = 0;
904 stats->tcp_fusion_aborted.value.ui64 = 0;
905 stats->tcp_fusion_unqualified.value.ui64 = 0;
906 stats->tcp_fusion_rrw_busy.value.ui64 = 0;
907 stats->tcp_fusion_rrw_msgcnt.value.ui64 = 0;
908 stats->tcp_fusion_rrw_plugged.value.ui64 = 0;
909 stats->tcp_in_ack_unsent_drop.value.ui64 = 0;
910 stats->tcp_sock_fallback.value.ui64 = 0;
911 stats->tcp_lso_enabled.value.ui64 = 0;
912 stats->tcp_lso_disabled.value.ui64 = 0;
913 stats->tcp_lso_times.value.ui64 = 0;
914 stats->tcp_lso_pkt_out.value.ui64 = 0;
915 stats->tcp_listen_cnt_drop.value.ui64 = 0;
916 stats->tcp_listen_mem_drop.value.ui64 = 0;
917 stats->tcp_zwin_mem_drop.value.ui64 = 0;
918 stats->tcp_zwin_ack_syn.value.ui64 = 0;
919 stats->tcp_rst_unsent.value.ui64 = 0;
920 stats->tcp_reclaim_cnt.value.ui64 = 0;
921 stats->tcp_reass_timeout.value.ui64 = 0;
922
923 #ifdef TCP_DEBUG_COUNTER
924 stats->tcp_time_wait.value.ui64 = 0;
925 stats->tcp_rput_time_wait.value.ui64 = 0;
926 stats->tcp_detach_time_wait.value.ui64 = 0;
927 stats->tcp_timeout_calls.value.ui64 = 0;
928 stats->tcp_timeout_cached_alloc.value.ui64 = 0;
929 stats->tcp_timeout_cancel_reqs.value.ui64 = 0;
930 stats->tcp_timeout_canceled.value.ui64 = 0;
931 stats->tcp_timermp_freed.value.ui64 = 0;
932 stats->tcp_push_timer_cnt.value.ui64 = 0;
933 stats->tcp_ack_timer_cnt.value.ui64 = 0;
934 #endif
935 }
936
937 /*
938 * To add counters from the per CPU tcp_stat_counter_t to the stack
939 * tcp_stat_t.
940 */
941 static void
942 tcp_add_stats(tcp_stat_counter_t *from, tcp_stat_t *to)
943 {
944 to->tcp_time_wait_syn_success.value.ui64 +=
945 from->tcp_time_wait_syn_success;
946 to->tcp_clean_death_nondetached.value.ui64 +=
947 from->tcp_clean_death_nondetached;
948 to->tcp_eager_blowoff_q.value.ui64 +=
949 from->tcp_eager_blowoff_q;
950 to->tcp_eager_blowoff_q0.value.ui64 +=
951 from->tcp_eager_blowoff_q0;
952 to->tcp_no_listener.value.ui64 +=
953 from->tcp_no_listener;
954 to->tcp_listendrop.value.ui64 +=
955 from->tcp_listendrop;
956 to->tcp_listendropq0.value.ui64 +=
957 from->tcp_listendropq0;
958 to->tcp_wsrv_called.value.ui64 +=
959 from->tcp_wsrv_called;
960 to->tcp_flwctl_on.value.ui64 +=
961 from->tcp_flwctl_on;
962 to->tcp_timer_fire_early.value.ui64 +=
963 from->tcp_timer_fire_early;
964 to->tcp_timer_fire_miss.value.ui64 +=
965 from->tcp_timer_fire_miss;
966 to->tcp_zcopy_on.value.ui64 +=
967 from->tcp_zcopy_on;
968 to->tcp_zcopy_off.value.ui64 +=
969 from->tcp_zcopy_off;
970 to->tcp_zcopy_backoff.value.ui64 +=
971 from->tcp_zcopy_backoff;
972 to->tcp_fusion_flowctl.value.ui64 +=
973 from->tcp_fusion_flowctl;
974 to->tcp_fusion_backenabled.value.ui64 +=
975 from->tcp_fusion_backenabled;
976 to->tcp_fusion_urg.value.ui64 +=
977 from->tcp_fusion_urg;
978 to->tcp_fusion_putnext.value.ui64 +=
979 from->tcp_fusion_putnext;
980 to->tcp_fusion_unfusable.value.ui64 +=
981 from->tcp_fusion_unfusable;
982 to->tcp_fusion_aborted.value.ui64 +=
983 from->tcp_fusion_aborted;
984 to->tcp_fusion_unqualified.value.ui64 +=
985 from->tcp_fusion_unqualified;
986 to->tcp_fusion_rrw_busy.value.ui64 +=
987 from->tcp_fusion_rrw_busy;
988 to->tcp_fusion_rrw_msgcnt.value.ui64 +=
989 from->tcp_fusion_rrw_msgcnt;
990 to->tcp_fusion_rrw_plugged.value.ui64 +=
991 from->tcp_fusion_rrw_plugged;
992 to->tcp_in_ack_unsent_drop.value.ui64 +=
993 from->tcp_in_ack_unsent_drop;
994 to->tcp_sock_fallback.value.ui64 +=
995 from->tcp_sock_fallback;
996 to->tcp_lso_enabled.value.ui64 +=
997 from->tcp_lso_enabled;
998 to->tcp_lso_disabled.value.ui64 +=
999 from->tcp_lso_disabled;
1000 to->tcp_lso_times.value.ui64 +=
1001 from->tcp_lso_times;
1002 to->tcp_lso_pkt_out.value.ui64 +=
1003 from->tcp_lso_pkt_out;
1004 to->tcp_listen_cnt_drop.value.ui64 +=
1005 from->tcp_listen_cnt_drop;
1006 to->tcp_listen_mem_drop.value.ui64 +=
1007 from->tcp_listen_mem_drop;
1008 to->tcp_zwin_mem_drop.value.ui64 +=
1009 from->tcp_zwin_mem_drop;
1010 to->tcp_zwin_ack_syn.value.ui64 +=
1011 from->tcp_zwin_ack_syn;
1012 to->tcp_rst_unsent.value.ui64 +=
1013 from->tcp_rst_unsent;
1014 to->tcp_reclaim_cnt.value.ui64 +=
1015 from->tcp_reclaim_cnt;
1016 to->tcp_reass_timeout.value.ui64 +=
1017 from->tcp_reass_timeout;
1018
1019 #ifdef TCP_DEBUG_COUNTER
1020 to->tcp_time_wait.value.ui64 +=
1021 from->tcp_time_wait;
1022 to->tcp_rput_time_wait.value.ui64 +=
1023 from->tcp_rput_time_wait;
1024 to->tcp_detach_time_wait.value.ui64 +=
1025 from->tcp_detach_time_wait;
1026 to->tcp_timeout_calls.value.ui64 +=
1027 from->tcp_timeout_calls;
1028 to->tcp_timeout_cached_alloc.value.ui64 +=
1029 from->tcp_timeout_cached_alloc;
1030 to->tcp_timeout_cancel_reqs.value.ui64 +=
1031 from->tcp_timeout_cancel_reqs;
1032 to->tcp_timeout_canceled.value.ui64 +=
1033 from->tcp_timeout_canceled;
1034 to->tcp_timermp_freed.value.ui64 +=
1035 from->tcp_timermp_freed;
1036 to->tcp_push_timer_cnt.value.ui64 +=
1037 from->tcp_push_timer_cnt;
1038 to->tcp_ack_timer_cnt.value.ui64 +=
1039 from->tcp_ack_timer_cnt;
1040 #endif
1041 }