1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2001-2007, by Weongyo Jeong. All rights reserved.
5 * Copyright (c) 2011, by Michael Tuexen. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * a) Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * b) Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the distribution.
16 *
17 * c) Neither the name of Cisco Systems, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/param.h>
35 #include <sys/queue.h>
36 #include <sys/types.h>
37 #include <sys/socket.h>
38 #include <sys/socketvar.h>
39 #include <sys/sysctl.h>
40 #include <sys/protosw.h>
41
42 #include <netinet/in.h>
43 #include <netinet/sctp.h>
44 #include <netinet/sctp_constants.h>
45 #include <arpa/inet.h>
46
47 #include <errno.h>
48 #include <libutil.h>
49 #include <netdb.h>
50 #include <stdint.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <stdbool.h>
54 #include <string.h>
55 #include <unistd.h>
56 #include "netstat.h"
57 #include <libxo/xo.h>
58
59 #ifdef SCTP
60
61 static void sctp_statesprint(uint32_t state);
62
63 #define NETSTAT_SCTP_STATES_CLOSED 0x0
64 #define NETSTAT_SCTP_STATES_BOUND 0x1
65 #define NETSTAT_SCTP_STATES_LISTEN 0x2
66 #define NETSTAT_SCTP_STATES_COOKIE_WAIT 0x3
67 #define NETSTAT_SCTP_STATES_COOKIE_ECHOED 0x4
68 #define NETSTAT_SCTP_STATES_ESTABLISHED 0x5
69 #define NETSTAT_SCTP_STATES_SHUTDOWN_SENT 0x6
70 #define NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED 0x7
71 #define NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT 0x8
72 #define NETSTAT_SCTP_STATES_SHUTDOWN_PENDING 0x9
73
74 static const char *sctpstates[] = {
75 "CLOSED",
76 "BOUND",
77 "LISTEN",
78 "COOKIE_WAIT",
79 "COOKIE_ECHOED",
80 "ESTABLISHED",
81 "SHUTDOWN_SENT",
82 "SHUTDOWN_RECEIVED",
83 "SHUTDOWN_ACK_SENT",
84 "SHUTDOWN_PENDING"
85 };
86
87 static LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head;
88 struct xladdr_entry {
89 struct xsctp_laddr *xladdr;
90 LIST_ENTRY(xladdr_entry) xladdr_entries;
91 };
92
93 static LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head;
94 struct xraddr_entry {
95 struct xsctp_raddr *xraddr;
96 LIST_ENTRY(xraddr_entry) xraddr_entries;
97 };
98
99 static void
sctp_print_address(const char * container,union sctp_sockstore * address,int port,int num_port)100 sctp_print_address(const char *container, union sctp_sockstore *address,
101 int port, int num_port)
102 {
103 struct servent *sp = 0;
104 char line[80], *cp;
105 int width;
106 size_t alen, plen;
107
108 if (container)
109 xo_open_container(container);
110
111 switch (address->sa.sa_family) {
112 #ifdef INET
113 case AF_INET:
114 snprintf(line, sizeof(line), "%.*s.",
115 Wflag ? 39 : 16, inetname(&address->sin.sin_addr));
116 break;
117 #endif
118 #ifdef INET6
119 case AF_INET6:
120 snprintf(line, sizeof(line), "%.*s.",
121 Wflag ? 39 : 16, inet6name(&address->sin6.sin6_addr));
122 break;
123 #endif
124 default:
125 snprintf(line, sizeof(line), "%.*s.",
126 Wflag ? 39 : 16, "");
127 break;
128 }
129 alen = strlen(line);
130 cp = line + alen;
131 if (!num_port && port)
132 sp = getservbyport((int)port, "sctp");
133 if (sp || port == 0)
134 snprintf(cp, sizeof(line) - alen,
135 "%.15s ", sp ? sp->s_name : "*");
136 else
137 snprintf(cp, sizeof(line) - alen,
138 "%d ", ntohs((u_short)port));
139 width = Wflag ? 45 : 22;
140 xo_emit("{d:target/%-*.*s} ", width, width, line);
141
142 plen = strlen(cp) - 1;
143 alen--;
144 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
145 plen, cp);
146
147 if (container)
148 xo_close_container(container);
149 }
150
151 static int
sctp_skip_xinpcb_ifneed(char * buf,const size_t buflen,size_t * offset)152 sctp_skip_xinpcb_ifneed(char *buf, const size_t buflen, size_t *offset)
153 {
154 int exist_tcb = 0;
155 struct xsctp_tcb *xstcb;
156 struct xsctp_raddr *xraddr;
157 struct xsctp_laddr *xladdr;
158
159 while (*offset < buflen) {
160 xladdr = (struct xsctp_laddr *)(buf + *offset);
161 *offset += sizeof(struct xsctp_laddr);
162 if (xladdr->last == 1)
163 break;
164 }
165
166 while (*offset < buflen) {
167 xstcb = (struct xsctp_tcb *)(buf + *offset);
168 *offset += sizeof(struct xsctp_tcb);
169 if (xstcb->last == 1)
170 break;
171
172 exist_tcb = 1;
173
174 while (*offset < buflen) {
175 xladdr = (struct xsctp_laddr *)(buf + *offset);
176 *offset += sizeof(struct xsctp_laddr);
177 if (xladdr->last == 1)
178 break;
179 }
180
181 while (*offset < buflen) {
182 xraddr = (struct xsctp_raddr *)(buf + *offset);
183 *offset += sizeof(struct xsctp_raddr);
184 if (xraddr->last == 1)
185 break;
186 }
187 }
188
189 /*
190 * If Lflag is set, we don't care about the return value.
191 */
192 if (Lflag)
193 return 0;
194
195 return exist_tcb;
196 }
197
198 static void
sctp_process_tcb(struct xsctp_tcb * xstcb,char * buf,const size_t buflen,size_t * offset,int * indent)199 sctp_process_tcb(struct xsctp_tcb *xstcb,
200 char *buf, const size_t buflen, size_t *offset, int *indent)
201 {
202 int i, xl_total = 0, xr_total = 0, x_max;
203 struct xsctp_raddr *xraddr;
204 struct xsctp_laddr *xladdr;
205 struct xladdr_entry *prev_xl = NULL, *xl = NULL, *xl_tmp;
206 struct xraddr_entry *prev_xr = NULL, *xr = NULL, *xr_tmp;
207
208 LIST_INIT(&xladdr_head);
209 LIST_INIT(&xraddr_head);
210
211 /*
212 * Make `struct xladdr_list' list and `struct xraddr_list' list
213 * to handle the address flexibly.
214 */
215 while (*offset < buflen) {
216 xladdr = (struct xsctp_laddr *)(buf + *offset);
217 *offset += sizeof(struct xsctp_laddr);
218 if (xladdr->last == 1)
219 break;
220
221 prev_xl = xl;
222 xl = malloc(sizeof(struct xladdr_entry));
223 if (xl == NULL) {
224 xo_warnx("malloc %lu bytes",
225 (u_long)sizeof(struct xladdr_entry));
226 goto out;
227 }
228 xl->xladdr = xladdr;
229 if (prev_xl == NULL)
230 LIST_INSERT_HEAD(&xladdr_head, xl, xladdr_entries);
231 else
232 LIST_INSERT_AFTER(prev_xl, xl, xladdr_entries);
233 xl_total++;
234 }
235
236 while (*offset < buflen) {
237 xraddr = (struct xsctp_raddr *)(buf + *offset);
238 *offset += sizeof(struct xsctp_raddr);
239 if (xraddr->last == 1)
240 break;
241
242 prev_xr = xr;
243 xr = malloc(sizeof(struct xraddr_entry));
244 if (xr == NULL) {
245 xo_warnx("malloc %lu bytes",
246 (u_long)sizeof(struct xraddr_entry));
247 goto out;
248 }
249 xr->xraddr = xraddr;
250 if (prev_xr == NULL)
251 LIST_INSERT_HEAD(&xraddr_head, xr, xraddr_entries);
252 else
253 LIST_INSERT_AFTER(prev_xr, xr, xraddr_entries);
254 xr_total++;
255 }
256
257 /*
258 * Let's print the address infos.
259 */
260 xo_open_list("address");
261 xl = LIST_FIRST(&xladdr_head);
262 xr = LIST_FIRST(&xraddr_head);
263 x_max = MAX(xl_total, xr_total);
264 for (i = 0; i < x_max; i++) {
265 xo_open_instance("address");
266
267 if (((*indent == 0) && i > 0) || *indent > 0)
268 xo_emit("{P:/%-12s} ", " ");
269
270 if (xl != NULL) {
271 sctp_print_address("local", &(xl->xladdr->address),
272 htons(xstcb->local_port), numeric_port);
273 } else {
274 if (Wflag) {
275 xo_emit("{P:/%-45s} ", " ");
276 } else {
277 xo_emit("{P:/%-22s} ", " ");
278 }
279 }
280
281 if (xr != NULL && !Lflag) {
282 sctp_print_address("remote", &(xr->xraddr->address),
283 htons(xstcb->remote_port), numeric_port);
284 }
285
286 if (xl != NULL)
287 xl = LIST_NEXT(xl, xladdr_entries);
288 if (xr != NULL)
289 xr = LIST_NEXT(xr, xraddr_entries);
290
291 if (i == 0 && !Lflag)
292 sctp_statesprint(xstcb->state);
293
294 if (i < x_max)
295 xo_emit("\n");
296 xo_close_instance("address");
297 }
298
299 out:
300 /*
301 * Free the list which be used to handle the address.
302 */
303 xl = LIST_FIRST(&xladdr_head);
304 while (xl != NULL) {
305 xl_tmp = LIST_NEXT(xl, xladdr_entries);
306 free(xl);
307 xl = xl_tmp;
308 }
309
310 xr = LIST_FIRST(&xraddr_head);
311 while (xr != NULL) {
312 xr_tmp = LIST_NEXT(xr, xraddr_entries);
313 free(xr);
314 xr = xr_tmp;
315 }
316 }
317
318 static void
sctp_process_inpcb(struct xsctp_inpcb * xinpcb,char * buf,const size_t buflen,size_t * offset)319 sctp_process_inpcb(struct xsctp_inpcb *xinpcb,
320 char *buf, const size_t buflen, size_t *offset)
321 {
322 int indent = 0, xladdr_total = 0, is_listening = 0;
323 static int first = 1;
324 const char *tname, *pname;
325 struct xsctp_tcb *xstcb;
326 struct xsctp_laddr *xladdr;
327 size_t offset_laddr;
328 int process_closed;
329
330 if (xinpcb->maxqlen > 0)
331 is_listening = 1;
332
333 if (first) {
334 if (!Lflag) {
335 xo_emit("Active SCTP associations");
336 if (aflag)
337 xo_emit(" (including servers)");
338 } else
339 xo_emit("Current listen queue sizes (qlen/maxqlen)");
340 xo_emit("\n");
341 if (Lflag)
342 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-8.8s} "
343 "{T:/%-22.22s}\n",
344 "Proto", "Type", "Listen", "Local Address");
345 else
346 if (Wflag)
347 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-45.45s} "
348 "{T:/%-45.45s} {T:/%s}\n",
349 "Proto", "Type",
350 "Local Address", "Foreign Address",
351 "(state)");
352 else
353 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-22.22s} "
354 "{T:/%-22.22s} {T:/%s}\n",
355 "Proto", "Type",
356 "Local Address", "Foreign Address",
357 "(state)");
358 first = 0;
359 }
360 xladdr = (struct xsctp_laddr *)(buf + *offset);
361 if ((!aflag && is_listening) ||
362 (Lflag && !is_listening)) {
363 sctp_skip_xinpcb_ifneed(buf, buflen, offset);
364 return;
365 }
366
367 if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) {
368 /* Can't distinguish between sctp46 and sctp6 */
369 pname = "sctp46";
370 } else {
371 pname = "sctp4";
372 }
373
374 if (xinpcb->flags & SCTP_PCB_FLAGS_TCPTYPE)
375 tname = "1to1";
376 else if (xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE)
377 tname = "1toN";
378 else
379 tname = "????";
380
381 if (Lflag) {
382 char buf1[22];
383
384 snprintf(buf1, sizeof buf1, "%u/%u",
385 xinpcb->qlen, xinpcb->maxqlen);
386 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ",
387 pname, tname);
388 xo_emit("{d:queues/%-8.8s}{e:queue-len/%hu}"
389 "{e:max-queue-len/%hu} ",
390 buf1, xinpcb->qlen, xinpcb->maxqlen);
391 }
392
393 offset_laddr = *offset;
394 process_closed = 0;
395
396 xo_open_list("local-address");
397 retry:
398 while (*offset < buflen) {
399 xladdr = (struct xsctp_laddr *)(buf + *offset);
400 *offset += sizeof(struct xsctp_laddr);
401 if (xladdr->last) {
402 if (aflag && !Lflag && (xladdr_total == 0) && process_closed) {
403 xo_open_instance("local-address");
404
405 xo_emit("{:protocol/%-6.6s/%s} "
406 "{:type/%-5.5s/%s} ", pname, tname);
407 if (Wflag) {
408 xo_emit("{P:/%-91.91s/%s} "
409 "{:state/CLOSED}", " ");
410 } else {
411 xo_emit("{P:/%-45.45s/%s} "
412 "{:state/CLOSED}", " ");
413 }
414 xo_close_instance("local-address");
415 }
416 if (process_closed || is_listening) {
417 xo_emit("\n");
418 }
419 break;
420 }
421
422 if (!Lflag && !is_listening && !process_closed)
423 continue;
424
425 xo_open_instance("local-address");
426
427 if (xladdr_total == 0) {
428 if (!Lflag) {
429 xo_emit("{:protocol/%-6.6s/%s} "
430 "{:type/%-5.5s/%s} ", pname, tname);
431 }
432 } else {
433 xo_emit("\n");
434 xo_emit(Lflag ? "{P:/%-21.21s} " : "{P:/%-12.12s} ",
435 " ");
436 }
437 sctp_print_address("local", &(xladdr->address),
438 htons(xinpcb->local_port), numeric_port);
439 if (aflag && !Lflag && xladdr_total == 0) {
440 if (Wflag) {
441 if (process_closed) {
442 xo_emit("{P:/%-45.45s} "
443 "{:state/CLOSED}", " ");
444 } else {
445 xo_emit("{P:/%-45.45s} "
446 "{:state/LISTEN}", " ");
447 }
448 } else {
449 if (process_closed) {
450 xo_emit("{P:/%-22.22s} "
451 "{:state/CLOSED}", " ");
452 } else {
453 xo_emit("{P:/%-22.22s} "
454 "{:state/LISTEN}", " ");
455 }
456 }
457 }
458 xladdr_total++;
459 xo_close_instance("local-address");
460 }
461
462 xstcb = (struct xsctp_tcb *)(buf + *offset);
463 *offset += sizeof(struct xsctp_tcb);
464 if (aflag && (xladdr_total == 0) && xstcb->last && !process_closed) {
465 process_closed = 1;
466 *offset = offset_laddr;
467 goto retry;
468 }
469 while (xstcb->last == 0 && *offset < buflen) {
470 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ",
471 pname, tname);
472 sctp_process_tcb(xstcb, buf, buflen, offset, &indent);
473 indent++;
474 xstcb = (struct xsctp_tcb *)(buf + *offset);
475 *offset += sizeof(struct xsctp_tcb);
476 }
477
478 xo_close_list("local-address");
479 }
480
481 /*
482 * Print a summary of SCTP connections related to an Internet
483 * protocol.
484 */
485 void
sctp_protopr(u_long off __unused,const char * name __unused,int af1 __unused,int proto)486 sctp_protopr(u_long off __unused,
487 const char *name __unused, int af1 __unused, int proto)
488 {
489 char *buf;
490 const char *mibvar = "net.inet.sctp.assoclist";
491 size_t offset = 0;
492 size_t len = 0;
493 struct xsctp_inpcb *xinpcb;
494
495 if (proto != IPPROTO_SCTP)
496 return;
497
498 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
499 if (errno != ENOENT)
500 xo_warn("sysctl: %s", mibvar);
501 return;
502 }
503 if ((buf = malloc(len)) == NULL) {
504 xo_warnx("malloc %lu bytes", (u_long)len);
505 return;
506 }
507 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
508 xo_warn("sysctl: %s", mibvar);
509 free(buf);
510 return;
511 }
512
513 xinpcb = (struct xsctp_inpcb *)(buf + offset);
514 offset += sizeof(struct xsctp_inpcb);
515 while (xinpcb->last == 0 && offset < len) {
516 sctp_process_inpcb(xinpcb, buf, (const size_t)len,
517 &offset);
518
519 xinpcb = (struct xsctp_inpcb *)(buf + offset);
520 offset += sizeof(struct xsctp_inpcb);
521 }
522
523 free(buf);
524 }
525
526 static void
sctp_statesprint(uint32_t state)527 sctp_statesprint(uint32_t state)
528 {
529 int idx;
530
531 switch (state) {
532 case SCTP_CLOSED:
533 idx = NETSTAT_SCTP_STATES_CLOSED;
534 break;
535 case SCTP_BOUND:
536 idx = NETSTAT_SCTP_STATES_BOUND;
537 break;
538 case SCTP_LISTEN:
539 idx = NETSTAT_SCTP_STATES_LISTEN;
540 break;
541 case SCTP_COOKIE_WAIT:
542 idx = NETSTAT_SCTP_STATES_COOKIE_WAIT;
543 break;
544 case SCTP_COOKIE_ECHOED:
545 idx = NETSTAT_SCTP_STATES_COOKIE_ECHOED;
546 break;
547 case SCTP_ESTABLISHED:
548 idx = NETSTAT_SCTP_STATES_ESTABLISHED;
549 break;
550 case SCTP_SHUTDOWN_SENT:
551 idx = NETSTAT_SCTP_STATES_SHUTDOWN_SENT;
552 break;
553 case SCTP_SHUTDOWN_RECEIVED:
554 idx = NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED;
555 break;
556 case SCTP_SHUTDOWN_ACK_SENT:
557 idx = NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT;
558 break;
559 case SCTP_SHUTDOWN_PENDING:
560 idx = NETSTAT_SCTP_STATES_SHUTDOWN_PENDING;
561 break;
562 default:
563 xo_emit("UNKNOWN {:state/0x%08x}", state);
564 return;
565 }
566
567 xo_emit("{:state/%s}", sctpstates[idx]);
568 }
569
570 /*
571 * Dump SCTP statistics structure.
572 */
573 void
sctp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)574 sctp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
575 {
576 struct sctpstat sctpstat;
577
578 if (fetch_stats("net.inet.sctp.stats", off, &sctpstat,
579 sizeof(sctpstat), kread) != 0)
580 return;
581
582 xo_open_container(name);
583 xo_emit("{T:/%s}:\n", name);
584
585 #define p(f, m) if (sctpstat.f || sflag <= 1) \
586 xo_emit(m, (uintmax_t)sctpstat.f, plural(sctpstat.f))
587 #define p1a(f, m) if (sctpstat.f || sflag <= 1) \
588 xo_emit(m, (uintmax_t)sctpstat.f)
589
590 /*
591 * input statistics
592 */
593 p(sctps_recvpackets, "\t{:received-packets/%ju} "
594 "{N:/input packet%s}\n");
595 p(sctps_recvdatagrams, "\t\t{:received-datagrams/%ju} "
596 "{N:/datagram%s}\n");
597 p(sctps_recvpktwithdata, "\t\t{:received-with-data/%ju} "
598 "{N:/packet%s that had data}\n");
599 p(sctps_recvsacks, "\t\t{:received-sack-chunks/%ju} "
600 "{N:/input SACK chunk%s}\n");
601 p(sctps_recvdata, "\t\t{:received-data-chunks/%ju} "
602 "{N:/input DATA chunk%s}\n");
603 p(sctps_recvdupdata, "\t\t{:received-duplicate-data-chunks/%ju} "
604 "{N:/duplicate DATA chunk%s}\n");
605 p(sctps_recvheartbeat, "\t\t{:received-hb-chunks/%ju} "
606 "{N:/input HB chunk%s}\n");
607 p(sctps_recvheartbeatack, "\t\t{:received-hb-ack-chunks/%ju} "
608 "{N:/HB-ACK chunk%s}\n");
609 p(sctps_recvecne, "\t\t{:received-ecne-chunks/%ju} "
610 "{N:/input ECNE chunk%s}\n");
611 p(sctps_recvauth, "\t\t{:received-auth-chunks/%ju} "
612 "{N:/input AUTH chunk%s}\n");
613 p(sctps_recvauthmissing, "\t\t{:dropped-missing-auth/%ju} "
614 "{N:/chunk%s missing AUTH}\n");
615 p(sctps_recvivalhmacid, "\t\t{:dropped-invalid-hmac/%ju} "
616 "{N:/invalid HMAC id%s received}\n");
617 p(sctps_recvivalkeyid, "\t\t{:dropped-invalid-secret/%ju} "
618 "{N:/invalid secret id%s received}\n");
619 p1a(sctps_recvauthfailed, "\t\t{:dropped-auth-failed/%ju} "
620 "{N:/auth failed}\n");
621 p1a(sctps_recvexpress, "\t\t{:received-fast-path/%ju} "
622 "{N:/fast path receives all one chunk}\n");
623 p1a(sctps_recvexpressm, "\t\t{:receives-fast-path-multipart/%ju} "
624 "{N:/fast path multi-part data}\n");
625
626 /*
627 * output statistics
628 */
629 p(sctps_sendpackets, "\t{:sent-packets/%ju} "
630 "{N:/output packet%s}\n");
631 p(sctps_sendsacks, "\t\t{:sent-sacks/%ju} "
632 "{N:/output SACK%s}\n");
633 p(sctps_senddata, "\t\t{:sent-data-chunks/%ju} "
634 "{N:/output DATA chunk%s}\n");
635 p(sctps_sendretransdata, "\t\t{:sent-retransmitted-data-chunks/%ju} "
636 "{N:/retransmitted DATA chunk%s}\n");
637 p(sctps_sendfastretrans, "\t\t"
638 "{:sent-fast-retransmitted-data-chunks/%ju} "
639 "{N:/fast retransmitted DATA chunk%s}\n");
640 p(sctps_sendmultfastretrans, "\t\t"
641 "{:sent-fast-retransmitted-data-chunk-multiple-times/%ju} "
642 "{N:/FR'%s that happened more than once to same chunk}\n");
643 p(sctps_sendheartbeat, "\t\t{:sent-hb-chunks/%ju} "
644 "{N:/output HB chunk%s}\n");
645 p(sctps_sendecne, "\t\t{:sent-ecne-chunks/%ju} "
646 "{N:/output ECNE chunk%s}\n");
647 p(sctps_sendauth, "\t\t{:sent-auth-chunks/%ju} "
648 "{N:/output AUTH chunk%s}\n");
649 p1a(sctps_senderrors, "\t\t{:send-errors/%ju} "
650 "{N:/ip_output error counter}\n");
651
652 /*
653 * PCKDROPREP statistics
654 */
655 xo_emit("\t{T:Packet drop statistics}:\n");
656 xo_open_container("drop-statistics");
657 p1a(sctps_pdrpfmbox, "\t\t{:middle-box/%ju} "
658 "{N:/from middle box}\n");
659 p1a(sctps_pdrpfehos, "\t\t{:end-host/%ju} "
660 "{N:/from end host}\n");
661 p1a(sctps_pdrpmbda, "\t\t{:with-data/%ju} "
662 "{N:/with data}\n");
663 p1a(sctps_pdrpmbct, "\t\t{:non-data/%ju} "
664 "{N:/non-data, non-endhost}\n");
665 p1a(sctps_pdrpbwrpt, "\t\t{:non-endhost/%ju} "
666 "{N:/non-endhost, bandwidth rep only}\n");
667 p1a(sctps_pdrpcrupt, "\t\t{:short-header/%ju} "
668 "{N:/not enough for chunk header}\n");
669 p1a(sctps_pdrpnedat, "\t\t{:short-data/%ju} "
670 "{N:/not enough data to confirm}\n");
671 p1a(sctps_pdrppdbrk, "\t\t{:chunk-break/%ju} "
672 "{N:/where process_chunk_drop said break}\n");
673 p1a(sctps_pdrptsnnf, "\t\t{:tsn-not-found/%ju} "
674 "{N:/failed to find TSN}\n");
675 p1a(sctps_pdrpdnfnd, "\t\t{:reverse-tsn/%ju} "
676 "{N:/attempt reverse TSN lookup}\n");
677 p1a(sctps_pdrpdiwnp, "\t\t{:confirmed-zero-window/%ju} "
678 "{N:/e-host confirms zero-rwnd}\n");
679 p1a(sctps_pdrpdizrw, "\t\t{:middle-box-no-space/%ju} "
680 "{N:/midbox confirms no space}\n");
681 p1a(sctps_pdrpbadd, "\t\t{:bad-data/%ju} "
682 "{N:/data did not match TSN}\n");
683 p(sctps_pdrpmark, "\t\t{:tsn-marked-fast-retransmission/%ju} "
684 "{N:/TSN'%s marked for Fast Retran}\n");
685 xo_close_container("drop-statistics");
686
687 /*
688 * Timeouts
689 */
690 xo_emit("\t{T:Timeouts}:\n");
691 xo_open_container("timeouts");
692 p(sctps_timoiterator, "\t\t{:iterator/%ju} "
693 "{N:/iterator timer%s fired}\n");
694 p(sctps_timodata, "\t\t{:t3-data/%ju} "
695 "{N:/T3 data time out%s}\n");
696 p(sctps_timowindowprobe, "\t\t{:window-probe/%ju} "
697 "{N:/window probe (T3) timer%s fired}\n");
698 p(sctps_timoinit, "\t\t{:init-timer/%ju} "
699 "{N:/INIT timer%s fired}\n");
700 p(sctps_timosack, "\t\t{:sack-timer/%ju} "
701 "{N:/sack timer%s fired}\n");
702 p(sctps_timoshutdown, "\t\t{:shutdown-timer/%ju} "
703 "{N:/shutdown timer%s fired}\n");
704 p(sctps_timoheartbeat, "\t\t{:heartbeat-timer/%ju} "
705 "{N:/heartbeat timer%s fired}\n");
706 p1a(sctps_timocookie, "\t\t{:cookie-timer/%ju} "
707 "{N:/a cookie timeout fired}\n");
708 p1a(sctps_timosecret, "\t\t{:endpoint-changed-cookie/%ju} "
709 "{N:/an endpoint changed its cook}ie"
710 "secret\n");
711 p(sctps_timopathmtu, "\t\t{:pmtu-timer/%ju} "
712 "{N:/PMTU timer%s fired}\n");
713 p(sctps_timoshutdownack, "\t\t{:shutdown-ack-timer/%ju} "
714 "{N:/shutdown ack timer%s fired}\n");
715 p(sctps_timoshutdownguard, "\t\t{:shutdown-guard-timer/%ju} "
716 "{N:/shutdown guard timer%s fired}\n");
717 p(sctps_timostrmrst, "\t\t{:stream-reset-timer/%ju} "
718 "{N:/stream reset timer%s fired}\n");
719 p(sctps_timoearlyfr, "\t\t{:early-fast-retransmission-timer/%ju} "
720 "{N:/early FR timer%s fired}\n");
721 p1a(sctps_timoasconf, "\t\t{:asconf-timer/%ju} "
722 "{N:/an asconf timer fired}\n");
723 p1a(sctps_timoautoclose, "\t\t{:auto-close-timer/%ju} "
724 "{N:/auto close timer fired}\n");
725 p(sctps_timoassockill, "\t\t{:asoc-free-timer/%ju} "
726 "{N:/asoc free timer%s expired}\n");
727 p(sctps_timoinpkill, "\t\t{:input-free-timer/%ju} "
728 "{N:/inp free timer%s expired}\n");
729 xo_close_container("timeouts");
730
731 #if 0
732 /*
733 * Early fast retransmission counters
734 */
735 p(sctps_earlyfrstart, "\t%ju TODO:sctps_earlyfrstart\n");
736 p(sctps_earlyfrstop, "\t%ju TODO:sctps_earlyfrstop\n");
737 p(sctps_earlyfrmrkretrans, "\t%ju TODO:sctps_earlyfrmrkretrans\n");
738 p(sctps_earlyfrstpout, "\t%ju TODO:sctps_earlyfrstpout\n");
739 p(sctps_earlyfrstpidsck1, "\t%ju TODO:sctps_earlyfrstpidsck1\n");
740 p(sctps_earlyfrstpidsck2, "\t%ju TODO:sctps_earlyfrstpidsck2\n");
741 p(sctps_earlyfrstpidsck3, "\t%ju TODO:sctps_earlyfrstpidsck3\n");
742 p(sctps_earlyfrstpidsck4, "\t%ju TODO:sctps_earlyfrstpidsck4\n");
743 p(sctps_earlyfrstrid, "\t%ju TODO:sctps_earlyfrstrid\n");
744 p(sctps_earlyfrstrout, "\t%ju TODO:sctps_earlyfrstrout\n");
745 p(sctps_earlyfrstrtmr, "\t%ju TODO:sctps_earlyfrstrtmr\n");
746 #endif
747
748 /*
749 * Others
750 */
751 p1a(sctps_hdrops, "\t{:dropped-too-short/%ju} "
752 "{N:/packet shorter than header}\n");
753 p1a(sctps_badsum, "\t{:dropped-bad-checksum/%ju} "
754 "{N:/checksum error}\n");
755 p1a(sctps_noport, "\t{:dropped-no-endpoint/%ju} "
756 "{N:/no endpoint for port}\n");
757 p1a(sctps_badvtag, "\t{:dropped-bad-v-tag/%ju} "
758 "{N:/bad v-tag}\n");
759 p1a(sctps_badsid, "\t{:dropped-bad-sid/%ju} "
760 "{N:/bad SID}\n");
761 p1a(sctps_nomem, "\t{:dropped-no-memory/%ju} "
762 "{N:/no memory}\n");
763 p1a(sctps_fastretransinrtt, "\t{:multiple-fast-retransmits-in-rtt/%ju} "
764 "{N:/number of multiple FR in a RT}T window\n");
765 #if 0
766 p(sctps_markedretrans, "\t%ju TODO:sctps_markedretrans\n");
767 #endif
768 p1a(sctps_naglesent, "\t{:rfc813-sent/%ju} "
769 "{N:/RFC813 allowed sending}\n");
770 p1a(sctps_naglequeued, "\t{:rfc813-queued/%ju} "
771 "{N:/RFC813 does not allow sending}\n");
772 p1a(sctps_maxburstqueued, "\t{:max-burst-queued/%ju} "
773 "{N:/times max burst prohibited sending}\n");
774 p1a(sctps_ifnomemqueued, "\t{:no-memory-in-interface/%ju} "
775 "{N:/look ahead tells us no memory in interface}\n");
776 p(sctps_windowprobed, "\t{:sent-window-probes/%ju} "
777 "{N:/number%s of window probes sent}\n");
778 p(sctps_lowlevelerr, "\t{:low-level-err/%ju} "
779 "{N:/time%s an output error to clamp down on next user send}\n");
780 p(sctps_lowlevelerrusr, "\t{:low-level-user-error/%ju} "
781 "{N:/time%s sctp_senderrors were caused from a user}\n");
782 p(sctps_datadropchklmt, "\t{:dropped-chunk-limit/%ju} "
783 "{N:/number of in data drop%s due to chunk limit reached}\n");
784 p(sctps_datadroprwnd, "\t{:dropped-rwnd-limit/%ju} "
785 "{N:/number of in data drop%s due to rwnd limit reached}\n");
786 p(sctps_ecnereducedcwnd, "\t{:ecn-reduced-cwnd/%ju} "
787 "{N:/time%s a ECN reduced the cwnd}\n");
788 p1a(sctps_vtagexpress, "\t{:v-tag-express-lookup/%ju} "
789 "{N:/used express lookup via vtag}\n");
790 p1a(sctps_vtagbogus, "\t{:v-tag-collision/%ju} "
791 "{N:/collision in express lookup}\n");
792 p(sctps_primary_randry, "\t{:sender-ran-dry/%ju} "
793 "{N:/time%s the sender ran dry of user data on primary}\n");
794 p1a(sctps_cmt_randry, "\t{:cmt-ran-dry/%ju} "
795 "{N:/same for above}\n");
796 p(sctps_slowpath_sack, "\t{:slow-path-sack/%ju} "
797 "{N:/sack%s the slow way}\n");
798 p(sctps_wu_sacks_sent, "\t{:sent-window-update-only-sack/%ju} "
799 "{N:/window update only sack%s sent}\n");
800 p(sctps_sends_with_flags, "\t{:sent-with-sinfo/%ju} "
801 "{N:/send%s with sinfo_flags !=0}\n");
802 p(sctps_sends_with_unord, "\t{:sent-with-unordered/%ju} "
803 "{N:/unordered send%s}\n");
804 p(sctps_sends_with_eof, "\t{:sent-with-eof/%ju} "
805 "{N:/send%s with EOF flag set}\n");
806 p(sctps_sends_with_abort, "\t{:sent-with-abort/%ju} "
807 "{N:/send%s with ABORT flag set}\n");
808 p(sctps_protocol_drain_calls, "\t{:protocol-drain-called/%ju} "
809 "{N:/time%s protocol drain called}\n");
810 p(sctps_protocol_drains_done, "\t{:protocol-drain/%ju} "
811 "{N:/time%s we did a protocol drain}\n");
812 p(sctps_read_peeks, "\t{:read-with-peek/%ju} "
813 "{N:/time%s recv was called with peek}\n");
814 p(sctps_cached_chk, "\t{:cached-chunks/%ju} "
815 "{N:/cached chunk%s used}\n");
816 p1a(sctps_cached_strmoq, "\t{:cached-output-queue-used/%ju} "
817 "{N:/cached stream oq's used}\n");
818 p(sctps_left_abandon, "\t{:messages-abandoned/%ju} "
819 "{N:/unread message%s abandonded by close}\n");
820 p1a(sctps_send_burst_avoid, "\t{:send-burst-avoidance/%ju} "
821 "{N:/send burst avoidance, already max burst inflight to net}\n");
822 p1a(sctps_send_cwnd_avoid, "\t{:send-cwnd-avoidance/%ju} "
823 "{N:/send cwnd full avoidance, already max burst inflight "
824 "to net}\n");
825 p(sctps_fwdtsn_map_over, "\t{:tsn-map-overruns/%ju} "
826 "{N:/number of map array over-run%s via fwd-tsn's}\n");
827
828 #undef p
829 #undef p1a
830 xo_close_container(name);
831 }
832
833 #endif /* SCTP */
834