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dmake: do not set MAKEFLAGS=k
[unleashed/tickless.git] / usr / src / cmd / mdb / common / modules / sctp / sctp.c
blob9ab72ee66b9b2467dcbde94d9af4990105e5a0da
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/mdb_modapi.h>
29 #include <sys/socket.h>
30 #include <sys/list.h>
31 #include <sys/strsun.h>
32
33 #include <mdb/mdb_stdlib.h>
34
35 #include <netinet/in.h>
36 #include <netinet/ip6.h>
37 #include <netinet/sctp.h>
38
39 #include <inet/common.h>
40 #include <inet/ip.h>
41 #include <inet/ip6.h>
42 #include <inet/ipclassifier.h>
43
44 #include <sctp/sctp_impl.h>
45 #include <sctp/sctp_addr.h>
46
47 #define MDB_SCTP_SHOW_FLAGS 0x1
48 #define MDB_SCTP_DUMP_ADDRS 0x2
49 #define MDB_SCTP_SHOW_HASH 0x4
50 #define MDB_SCTP_SHOW_OUT 0x8
51 #define MDB_SCTP_SHOW_IN 0x10
52 #define MDB_SCTP_SHOW_MISC 0x20
53 #define MDB_SCTP_SHOW_RTT 0x40
54 #define MDB_SCTP_SHOW_STATS 0x80
55 #define MDB_SCTP_SHOW_FLOW 0x100
56 #define MDB_SCTP_SHOW_HDR 0x200
57 #define MDB_SCTP_SHOW_PMTUD 0x400
58 #define MDB_SCTP_SHOW_RXT 0x800
59 #define MDB_SCTP_SHOW_CONN 0x1000
60 #define MDB_SCTP_SHOW_CLOSE 0x2000
61 #define MDB_SCTP_SHOW_EXT 0x4000
62
63 #define MDB_SCTP_SHOW_ALL 0xffffffff
64
65 /*
66 * Copy from kernel/os/list.c. Should we have a generic
67 * mdb list walker?
68 */
69 #define list_object(a, node) ((void *)(((char *)node) - (a)->list_offset))
70
71 static int
72 ns_to_stackid(uintptr_t kaddr)
73 {
74 netstack_t nss;
75
76 if (mdb_vread(&nss, sizeof (nss), kaddr) == -1) {
77 mdb_warn("failed to read netdstack info %p", kaddr);
78 return (0);
79 }
80 return (nss.netstack_stackid);
81 }
82
83 int
84 sctp_stacks_walk_init(mdb_walk_state_t *wsp)
85 {
86 if (mdb_layered_walk("netstack", wsp) == -1) {
87 mdb_warn("can't walk 'netstack'");
88 return (WALK_ERR);
89 }
90 return (WALK_NEXT);
91 }
92
93 int
94 sctp_stacks_walk_step(mdb_walk_state_t *wsp)
95 {
96 uintptr_t kaddr;
97 netstack_t nss;
98
99 if (mdb_vread(&nss, sizeof (nss), wsp->walk_addr) == -1) {
100 mdb_warn("can't read netstack at %p", wsp->walk_addr);
101 return (WALK_ERR);
102 }
103 kaddr = (uintptr_t)nss.netstack_modules[NS_SCTP];
104 return (wsp->walk_callback(kaddr, wsp->walk_layer, wsp->walk_cbdata));
105 }
106
107 static char *
108 sctp_faddr_state(int state)
109 {
110 char *statestr;
111
112 switch (state) {
113 case SCTP_FADDRS_UNREACH:
114 statestr = "Unreachable";
115 break;
116 case SCTP_FADDRS_DOWN:
117 statestr = "Down";
118 break;
119 case SCTP_FADDRS_ALIVE:
120 statestr = "Alive";
121 break;
122 case SCTP_FADDRS_UNCONFIRMED:
123 statestr = "Unconfirmed";
124 break;
125 default:
126 statestr = "Unknown";
127 break;
128 }
129 return (statestr);
130 }
131
132 /* ARGSUSED */
133 static int
134 sctp_faddr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
135 {
136 sctp_faddr_t fa[1];
137 char *statestr;
138
139 if (!(flags & DCMD_ADDRSPEC))
140 return (DCMD_USAGE);
141
142 if (mdb_vread(fa, sizeof (*fa), addr) == -1) {
143 mdb_warn("cannot read fadder at %p", addr);
144 return (DCMD_ERR);
145 }
146
147 statestr = sctp_faddr_state(fa->sf_state);
148 mdb_printf("%<u>%p\t%<b>%N%</b>\t%s%</u>\n", addr, &fa->sf_faddr,
149 statestr);
150 mdb_printf("next\t\t%?p\tsaddr\t%N\n", fa->sf_next, &fa->sf_saddr);
151 mdb_printf("rto\t\t%?d\tsrtt\t\t%?d\n", fa->sf_rto, fa->sf_srtt);
152 mdb_printf("rttvar\t\t%?d\trtt_updates\t%?u\n", fa->sf_rttvar,
153 fa->sf_rtt_updates);
154 mdb_printf("strikes\t\t%?d\tmax_retr\t%?d\n", fa->sf_strikes,
155 fa->sf_max_retr);
156 mdb_printf("hb_expiry\t%?ld\thb_interval\t%?u\n", fa->sf_hb_expiry,
157 fa->sf_hb_interval);
158 mdb_printf("pmss\t\t%?u\tcwnd\t\t%?u\n", fa->sf_pmss, fa->sf_cwnd);
159 mdb_printf("ssthresh\t%?u\tsuna\t\t%?u\n", fa->sf_ssthresh,
160 fa->sf_suna);
161 mdb_printf("pba\t\t%?u\tacked\t\t%?u\n", fa->sf_pba, fa->sf_acked);
162 mdb_printf("lastactive\t%?ld\thb_secret\t%?#lx\n", fa->sf_lastactive,
163 fa->sf_hb_secret);
164 mdb_printf("rxt_unacked\t%?u\n", fa->sf_rxt_unacked);
165 mdb_printf("timer_mp\t%?p\tixa\t\t%?p\n", fa->sf_timer_mp, fa->sf_ixa);
166 mdb_printf("hb_enabled\t%?d\thb_pending\t%?d\n"
167 "timer_running\t%?d\tdf\t\t%?d\n"
168 "pmtu_discovered\t%?d\tisv4\t\t%?d\n"
169 "retransmissions\t%?u\n",
170 fa->sf_hb_enabled, fa->sf_hb_pending, fa->sf_timer_running,
171 fa->sf_df, fa->sf_pmtu_discovered, fa->sf_isv4, fa->sf_T3expire);
172
173 return (DCMD_OK);
174 }
175
176 static void
177 print_set(sctp_set_t *sp)
178 {
179 mdb_printf("\tbegin\t%<b>%?x%</b>\t\tend\t%<b>%?x%</b>\n",
180 sp->begin, sp->end);
181 mdb_printf("\tnext\t%?p\tprev\t%?p\n", sp->next, sp->prev);
182 }
183
184 /* ARGSUSED */
185 static int
186 sctp_set(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
187 {
188 sctp_set_t sp[1];
189
190 if (!(flags & DCMD_ADDRSPEC))
191 return (DCMD_USAGE);
192
193 if (mdb_vread(sp, sizeof (*sp), addr) == -1)
194 return (DCMD_ERR);
195
196 print_set(sp);
197
198 return (DCMD_OK);
199 }
200
201 static void
202 dump_sack_info(uintptr_t addr)
203 {
204 sctp_set_t sp[1];
205
206 while (addr != (uintptr_t)NULL) {
207 if (mdb_vread(sp, sizeof (*sp), addr) == -1) {
208 mdb_warn("failed to read sctp_set at %p", addr);
209 return;
210 }
211
212 addr = (uintptr_t)sp->next;
213 print_set(sp);
214 }
215 }
216
217 static int
218 dump_msghdr(mblk_t *meta)
219 {
220 sctp_msg_hdr_t smh;
221
222 if (mdb_vread(&smh, sizeof (smh), (uintptr_t)meta->b_rptr) == -1)
223 return (-1);
224
225 mdb_printf("%<u>msg_hdr_t at \t%?p\tsentto\t%?p%</u>\n",
226 meta->b_rptr, SCTP_CHUNK_DEST(meta));
227 mdb_printf("\tttl\t%?ld\ttob\t%?ld\n", smh.smh_ttl, smh.smh_tob);
228 mdb_printf("\tsid\t%?u\tssn\t%?u\n", smh.smh_sid, smh.smh_ssn);
229 mdb_printf("\tppid\t%?u\tflags\t%?s\n", smh.smh_ppid,
230 smh.smh_flags & MSG_UNORDERED ? "unordered" : " ");
231 mdb_printf("\tcontext\t%?u\tmsglen\t%?d\n", smh.smh_context,
232 smh.smh_msglen);
233
234 return (0);
235 }
236
237 static int
238 dump_datahdr(mblk_t *mp)
239 {
240 sctp_data_hdr_t sdc;
241 uint16_t sdh_int16;
242 uint32_t sdh_int32;
243
244 if (mdb_vread(&sdc, sizeof (sdc), (uintptr_t)mp->b_rptr) == -1)
245 return (-1);
246
247 mdb_printf("%<u>data_chunk_t \t%?p\tsentto\t%?p%</u>\n",
248 mp->b_rptr, SCTP_CHUNK_DEST(mp));
249 mdb_printf("\tsent\t%?d\t", SCTP_CHUNK_ISSENT(mp)?1:0);
250 mdb_printf("retrans\t%?d\n", SCTP_CHUNK_WANT_REXMIT(mp)?1:0);
251 mdb_printf("\tacked\t%?d\t", SCTP_CHUNK_ISACKED(mp)?1:0);
252 mdb_printf("sackcnt\t%?u\n", SCTP_CHUNK_SACKCNT(mp));
253
254 mdb_nhconvert(&sdh_int16, &sdc.sdh_len, sizeof (sdc.sdh_len));
255 mdb_printf("\tlen\t%?d\t", sdh_int16);
256 mdb_printf("BBIT=%d", SCTP_DATA_GET_BBIT(&sdc) == 0 ? 0 : 1);
257 mdb_printf("EBIT=%d", SCTP_DATA_GET_EBIT(&sdc) == 0 ? 0 : 1);
258
259 mdb_nhconvert(&sdh_int32, &sdc.sdh_tsn, sizeof (sdc.sdh_tsn));
260 mdb_nhconvert(&sdh_int16, &sdc.sdh_sid, sizeof (sdc.sdh_sid));
261 mdb_printf("\ttsn\t%?x\tsid\t%?hu\n", sdh_int32, sdh_int16);
262
263 mdb_nhconvert(&sdh_int16, &sdc.sdh_ssn, sizeof (sdc.sdh_ssn));
264 mdb_nhconvert(&sdh_int32, &sdc.sdh_payload_id,
265 sizeof (sdc.sdh_payload_id));
266 mdb_printf("\tssn\t%?hu\tppid\t%?d\n", sdh_int16, sdh_int32);
267
268 return (0);
269 }
270
271 static int
272 sctp_sent_list(mblk_t *addr)
273 {
274 mblk_t meta, mp;
275
276 if (!addr)
277 return (0);
278
279 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1)
280 return (-1);
281
282 for (;;) {
283 dump_msghdr(&meta);
284
285 if (meta.b_cont == NULL) {
286 mdb_printf("No data chunks with message header!\n");
287 return (-1);
288 }
289 if (mdb_vread(&mp, sizeof (mp),
290 (uintptr_t)meta.b_cont) == -1) {
291 return (-1);
292 }
293 for (;;) {
294 dump_datahdr(&mp);
295 if (!mp.b_next)
296 break;
297
298 if (mdb_vread(&mp, sizeof (mp),
299 (uintptr_t)(mp.b_next)) == -1)
300 return (-1);
301 }
302 if (meta.b_next == NULL)
303 break;
304 if (mdb_vread(&meta, sizeof (meta),
305 (uintptr_t)meta.b_next) == -1)
306 return (-1);
307 }
308
309 return (0);
310 }
311
312 static int
313 sctp_unsent_list(mblk_t *addr)
314 {
315 mblk_t meta;
316
317 if (!addr)
318 return (0);
319
320 if (mdb_vread(&meta, sizeof (meta), (uintptr_t)addr) == -1)
321 return (-1);
322
323 for (;;) {
324 dump_msghdr(&meta);
325
326 if (meta.b_next == NULL)
327 break;
328
329 if (mdb_vread(&meta, sizeof (meta),
330 (uintptr_t)meta.b_next) == -1)
331 return (-1);
332 }
333
334 return (0);
335 }
336
337 /* ARGSUSED */
338 static int
339 sctp_xmit_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
340 {
341 sctp_t sctp;
342
343 if (!(flags & DCMD_ADDRSPEC))
344 return (DCMD_USAGE);
345
346 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1)
347 return (DCMD_ERR);
348
349 mdb_printf("%<b>Chunkified TX list%</b>\n");
350 if (sctp_sent_list(sctp.sctp_xmit_head) < 0)
351 return (DCMD_ERR);
352
353 mdb_printf("%<b>Unchunkified TX list%</b>\n");
354 if (sctp_unsent_list(sctp.sctp_xmit_unsent) < 0)
355 return (DCMD_ERR);
356
357 return (DCMD_OK);
358 }
359
360 /* ARGSUSED */
361 static int
362 sctp_mdata_chunk(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
363 {
364 sctp_data_hdr_t dc;
365 mblk_t mp;
366
367 if (!(flags & DCMD_ADDRSPEC))
368 return (DCMD_USAGE);
369
370 if (mdb_vread(&mp, sizeof (mp), addr) == -1)
371 return (DCMD_ERR);
372
373 if (mdb_vread(&dc, sizeof (dc), (uintptr_t)mp.b_rptr) == -1)
374 return (DCMD_ERR);
375
376 mdb_printf("%<b>%-?p%</b>tsn\t%?x\tsid\t%?hu\n", addr,
377 dc.sdh_tsn, dc.sdh_sid);
378 mdb_printf("%-?sssn\t%?hu\tppid\t%?x\n", "", dc.sdh_ssn,
379 dc.sdh_payload_id);
380
381 return (DCMD_OK);
382 }
383
384 /* ARGSUSED */
385 static int
386 sctp_istr_msgs(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
387 {
388 mblk_t istrmp;
389 mblk_t dmp;
390 sctp_data_hdr_t dp;
391 uintptr_t daddr;
392 uintptr_t chaddr;
393 boolean_t bbit;
394 boolean_t ebit;
395
396 if (!(flags & DCMD_ADDRSPEC))
397 return (DCMD_USAGE);
398
399 do {
400 if (mdb_vread(&istrmp, sizeof (istrmp), addr) == -1)
401 return (DCMD_ERR);
402
403 mdb_printf("\tistr mblk at %p: next: %?p\n"
404 "\t\tprev: %?p\tcont: %?p\n", addr, istrmp.b_next,
405 istrmp.b_prev, istrmp.b_cont);
406 daddr = (uintptr_t)&istrmp;
407 do {
408 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1)
409 break;
410 chaddr = (uintptr_t)dmp.b_rptr;
411 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1)
412 break;
413
414 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0);
415 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0);
416
417 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n",
418 dp.sdh_tsn, bbit, ebit);
419
420
421 daddr = (uintptr_t)dmp.b_cont;
422 } while (daddr != (uintptr_t)NULL);
423
424 addr = (uintptr_t)istrmp.b_next;
425 } while (addr != (uintptr_t)NULL);
426
427 return (DCMD_OK);
428 }
429
430 /* ARGSUSED */
431 static int
432 sctp_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
433 {
434 sctp_reass_t srp;
435 mblk_t srpmp;
436 sctp_data_hdr_t dp;
437 mblk_t dmp;
438 uintptr_t daddr;
439 uintptr_t chaddr;
440 boolean_t bbit, ebit;
441
442 if (!(flags & DCMD_ADDRSPEC))
443 return (DCMD_USAGE);
444
445 do {
446 if (mdb_vread(&srpmp, sizeof (srpmp), addr) == -1)
447 return (DCMD_ERR);
448
449 if (mdb_vread(&srp, sizeof (srp),
450 (uintptr_t)srpmp.b_datap->db_base) == -1)
451 return (DCMD_ERR);
452
453 mdb_printf("\treassembly mblk at %p: next: %?p\n"
454 "\t\tprev: %?p\tcont: %?p\n", addr, srpmp.b_next,
455 srpmp.b_prev, srpmp.b_cont);
456 mdb_printf("\t\tssn: %hu\tneeded: %hu\tgot: %hu\ttail: %?p\n"
457 "\t\tpartial_delivered: %s\n", srp.sr_ssn, srp.sr_needed,
458 srp.sr_got, srp.sr_tail, srp.sr_partial_delivered ? "TRUE" :
459 "FALSE");
460
461 /* display the contents of this ssn's reassemby list */
462 daddr = DB_TYPE(&srpmp) == M_CTL ? (uintptr_t)srpmp.b_cont :
463 (uintptr_t)&srpmp;
464 do {
465 if (mdb_vread(&dmp, sizeof (dmp), daddr) == -1)
466 break;
467 chaddr = (uintptr_t)dmp.b_rptr;
468 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1)
469 break;
470
471 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0);
472 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0);
473
474 mdb_printf("\t\t\ttsn: %x bbit: %d ebit: %d\n",
475 dp.sdh_tsn, bbit, ebit);
476
477 daddr = (uintptr_t)dmp.b_cont;
478 } while (daddr != (uintptr_t)NULL);
479
480 addr = (uintptr_t)srpmp.b_next;
481 } while (addr != (uintptr_t)NULL);
482
483 return (DCMD_OK);
484 }
485
486 /* ARGSUSED */
487 static int
488 sctp_uo_reass_list(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
489 {
490 sctp_data_hdr_t dp;
491 mblk_t dmp;
492 uintptr_t chaddr;
493 boolean_t bbit;
494 boolean_t ebit;
495 boolean_t ubit;
496
497 if (!(flags & DCMD_ADDRSPEC))
498 return (DCMD_USAGE);
499
500 do {
501 if (mdb_vread(&dmp, sizeof (dmp), addr) == -1)
502 return (DCMD_ERR);
503
504 mdb_printf("\treassembly mblk at %p: next: %?p\n"
505 "\t\tprev: %?p\n", addr, dmp.b_next, dmp.b_prev);
506
507 chaddr = (uintptr_t)dmp.b_rptr;
508 if (mdb_vread(&dp, sizeof (dp), chaddr) == -1)
509 break;
510
511 bbit = (SCTP_DATA_GET_BBIT(&dp) != 0);
512 ebit = (SCTP_DATA_GET_EBIT(&dp) != 0);
513 ubit = (SCTP_DATA_GET_UBIT(&dp) != 0);
514
515 mdb_printf("\t\t\tsid: %hu ssn: %hu tsn: %x "
516 "flags: %x (U=%d B=%d E=%d)\n", dp.sdh_sid, dp.sdh_ssn,
517 dp.sdh_tsn, dp.sdh_flags, ubit, bbit, ebit);
518
519 addr = (uintptr_t)dmp.b_next;
520 } while (addr != (uintptr_t)NULL);
521
522 return (DCMD_OK);
523 }
524
525 static int
526 sctp_instr(uintptr_t addr, uint_t flags, int ac, const mdb_arg_t *av)
527 {
528 sctp_instr_t sip;
529
530 if (!(flags & DCMD_ADDRSPEC))
531 return (DCMD_USAGE);
532
533 if (mdb_vread(&sip, sizeof (sip), addr) == -1)
534 return (DCMD_ERR);
535
536 mdb_printf("%<b>%-?p%</b>\n\tmsglist\t%?p\tnmsgs\t%?d\n"
537 "\tnextseq\t%?d\treass\t%?p\n", addr, sip.istr_msgs,
538 sip.istr_nmsgs, sip.nextseq, sip.istr_reass);
539 mdb_set_dot(addr + sizeof (sip));
540
541 return (sctp_reass_list((uintptr_t)sip.istr_reass, flags, ac, av));
542 }
543
544 static const char *
545 state2str(sctp_t *sctp)
546 {
547 switch (sctp->sctp_state) {
548 case SCTPS_IDLE: return ("SCTPS_IDLE");
549 case SCTPS_BOUND: return ("SCTPS_BOUND");
550 case SCTPS_LISTEN: return ("SCTPS_LISTEN");
551 case SCTPS_COOKIE_WAIT: return ("SCTPS_COOKIE_WAIT");
552 case SCTPS_COOKIE_ECHOED: return ("SCTPS_COOKIE_ECHOED");
553 case SCTPS_ESTABLISHED: return ("SCTPS_ESTABLISHED");
554 case SCTPS_SHUTDOWN_PENDING: return ("SCTPS_SHUTDOWN_PENDING");
555 case SCTPS_SHUTDOWN_SENT: return ("SCTPS_SHUTDOWN_SENT");
556 case SCTPS_SHUTDOWN_RECEIVED: return ("SCTPS_SHUTDOWN_RECEIVED");
557 case SCTPS_SHUTDOWN_ACK_SENT: return ("SCTPS_SHUTDOWN_ACK_SENT");
558 default: return ("UNKNOWN STATE");
559 }
560 }
561
562 static void
563 show_sctp_flags(sctp_t *sctp)
564 {
565 mdb_printf("\tunderstands_asconf\t%d\n",
566 sctp->sctp_understands_asconf);
567 mdb_printf("\tdebug\t\t\t%d\n", sctp->sctp_connp->conn_debug);
568 mdb_printf("\tcchunk_pend\t\t%d\n", sctp->sctp_cchunk_pend);
569 mdb_printf("\tdgram_errind\t\t%d\n",
570 sctp->sctp_connp->conn_dgram_errind);
571
572 mdb_printf("\tlinger\t\t\t%d\n", sctp->sctp_connp->conn_linger);
573 if (sctp->sctp_lingering)
574 return;
575 mdb_printf("\tlingering\t\t%d\n", sctp->sctp_lingering);
576 mdb_printf("\tloopback\t\t%d\n", sctp->sctp_loopback);
577 mdb_printf("\tforce_sack\t\t%d\n", sctp->sctp_force_sack);
578
579 mdb_printf("\tack_timer_runing\t%d\n", sctp->sctp_ack_timer_running);
580 mdb_printf("\trecvdstaddr\t\t%d\n",
581 sctp->sctp_connp->conn_recv_ancillary.crb_recvdstaddr);
582 mdb_printf("\thwcksum\t\t\t%d\n", sctp->sctp_hwcksum);
583 mdb_printf("\tunderstands_addip\t%d\n", sctp->sctp_understands_addip);
584
585 mdb_printf("\tbound_to_all\t\t%d\n", sctp->sctp_bound_to_all);
586 mdb_printf("\tcansleep\t\t%d\n", sctp->sctp_cansleep);
587 mdb_printf("\tdetached\t\t%d\n", sctp->sctp_detached);
588 mdb_printf("\tsend_adaptation\t\t%d\n", sctp->sctp_send_adaptation);
589
590 mdb_printf("\trecv_adaptation\t\t%d\n", sctp->sctp_recv_adaptation);
591 mdb_printf("\tndelay\t\t\t%d\n", sctp->sctp_ndelay);
592 mdb_printf("\tcondemned\t\t%d\n", sctp->sctp_condemned);
593 mdb_printf("\tchk_fast_rexmit\t\t%d\n", sctp->sctp_chk_fast_rexmit);
594
595 mdb_printf("\tprsctp_aware\t\t%d\n", sctp->sctp_prsctp_aware);
596 mdb_printf("\tlinklocal\t\t%d\n", sctp->sctp_linklocal);
597 mdb_printf("\trexmitting\t\t%d\n", sctp->sctp_rexmitting);
598 mdb_printf("\tzero_win_probe\t\t%d\n", sctp->sctp_zero_win_probe);
599
600 mdb_printf("\trecvsndrcvinfo\t\t%d\n", sctp->sctp_recvsndrcvinfo);
601 mdb_printf("\trecvassocevnt\t\t%d\n", sctp->sctp_recvassocevnt);
602 mdb_printf("\trecvpathevnt\t\t%d\n", sctp->sctp_recvpathevnt);
603 mdb_printf("\trecvsendfailevnt\t%d\n", sctp->sctp_recvsendfailevnt);
604
605 mdb_printf("\trecvpeerevnt\t\t%d\n", sctp->sctp_recvpeererr);
606 mdb_printf("\trecvchutdownevnt\t%d\n", sctp->sctp_recvshutdownevnt);
607 mdb_printf("\trecvcpdnevnt\t\t%d\n", sctp->sctp_recvpdevnt);
608 mdb_printf("\trecvcalevnt\t\t%d\n\n", sctp->sctp_recvalevnt);
609 }
610
611 /*
612 * Given a sctp_saddr_ipif_t, print out its address. This assumes
613 * that addr contains the sctp_addr_ipif_t structure already and this
614 * function does not need to read it in.
615 */
616 /* ARGSUSED */
617 static int
618 print_saddr(uintptr_t ptr, const void *addr, void *cbdata)
619 {
620 sctp_saddr_ipif_t *saddr = (sctp_saddr_ipif_t *)addr;
621 sctp_ipif_t ipif;
622 char *statestr;
623
624 /* Read in the sctp_ipif object */
625 if (mdb_vread(&ipif, sizeof (ipif), (uintptr_t)saddr->saddr_ipifp) ==
626 -1) {
627 mdb_warn("cannot read ipif at %p", saddr->saddr_ipifp);
628 return (WALK_ERR);
629 }
630
631 switch (ipif.sctp_ipif_state) {
632 case SCTP_IPIFS_CONDEMNED:
633 statestr = "Condemned";
634 break;
635 case SCTP_IPIFS_INVALID:
636 statestr = "Invalid";
637 break;
638 case SCTP_IPIFS_DOWN:
639 statestr = "Down";
640 break;
641 case SCTP_IPIFS_UP:
642 statestr = "Up";
643 break;
644 default:
645 statestr = "Unknown";
646 break;
647 }
648 mdb_printf("\t%p\t%N% (%s", saddr->saddr_ipifp, &ipif.sctp_ipif_saddr,
649 statestr);
650 if (saddr->saddr_ipif_dontsrc == 1)
651 mdb_printf("/Dontsrc");
652 if (saddr->saddr_ipif_unconfirmed == 1)
653 mdb_printf("/Unconfirmed");
654 if (saddr->saddr_ipif_delete_pending == 1)
655 mdb_printf("/DeletePending");
656 mdb_printf(")\n");
657 mdb_printf("\t\t\tid %d zoneid %d IPIF flags %x\n",
658 ipif.sctp_ipif_id,
659 ipif.sctp_ipif_zoneid, ipif.sctp_ipif_flags);
660 return (WALK_NEXT);
661 }
662
663 /*
664 * Given a sctp_faddr_t, print out its address. This assumes that
665 * addr contains the sctp_faddr_t structure already and this function
666 * does not need to read it in.
667 */
668 static int
669 print_faddr(uintptr_t ptr, const void *addr, void *cbdata)
670 {
671 char *statestr;
672 sctp_faddr_t *faddr = (sctp_faddr_t *)addr;
673 int *i = cbdata;
674
675 statestr = sctp_faddr_state(faddr->sf_state);
676
677 mdb_printf("\t%d:\t%N\t%?p (%s)\n", (*i)++, &faddr->sf_faddr, ptr,
678 statestr);
679 return (WALK_NEXT);
680 }
681
682 int
683 sctp(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
684 {
685 sctp_t sctps, *sctp;
686 conn_t conns, *connp;
687 int i;
688 uint_t opts = 0;
689 uint_t paddr = 0;
690 in_port_t lport, fport;
691
692 if (!(flags & DCMD_ADDRSPEC))
693 return (DCMD_USAGE);
694
695 if (mdb_vread(&sctps, sizeof (sctps), addr) == -1) {
696 mdb_warn("failed to read sctp_t at: %p\n", addr);
697 return (DCMD_ERR);
698 }
699 sctp = &sctps;
700
701 if (mdb_vread(&conns, sizeof (conns),
702 (uintptr_t)sctp->sctp_connp) == -1) {
703 mdb_warn("failed to read conn_t at: %p\n", sctp->sctp_connp);
704 return (DCMD_ERR);
705 }
706
707 connp = &conns;
708
709 connp->conn_sctp = sctp;
710 sctp->sctp_connp = connp;
711
712 if (mdb_getopts(argc, argv,
713 'a', MDB_OPT_SETBITS, MDB_SCTP_SHOW_ALL, &opts,
714 'f', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLAGS, &opts,
715 'h', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HASH, &opts,
716 'o', MDB_OPT_SETBITS, MDB_SCTP_SHOW_OUT, &opts,
717 'i', MDB_OPT_SETBITS, MDB_SCTP_SHOW_IN, &opts,
718 'm', MDB_OPT_SETBITS, MDB_SCTP_SHOW_MISC, &opts,
719 'r', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RTT, &opts,
720 'S', MDB_OPT_SETBITS, MDB_SCTP_SHOW_STATS, &opts,
721 'F', MDB_OPT_SETBITS, MDB_SCTP_SHOW_FLOW, &opts,
722 'H', MDB_OPT_SETBITS, MDB_SCTP_SHOW_HDR, &opts,
723 'p', MDB_OPT_SETBITS, MDB_SCTP_SHOW_PMTUD, &opts,
724 'R', MDB_OPT_SETBITS, MDB_SCTP_SHOW_RXT, &opts,
725 'C', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CONN, &opts,
726 'c', MDB_OPT_SETBITS, MDB_SCTP_SHOW_CLOSE, &opts,
727 'e', MDB_OPT_SETBITS, MDB_SCTP_SHOW_EXT, &opts,
728 'P', MDB_OPT_SETBITS, 1, &paddr,
729 'd', MDB_OPT_SETBITS, MDB_SCTP_DUMP_ADDRS, &opts) != argc) {
730 return (DCMD_USAGE);
731 }
732
733 /* non-verbose faddrs, suitable for pipelines to sctp_faddr */
734 if (paddr != (uintptr_t)NULL) {
735 sctp_faddr_t faddr, *fp;
736 for (fp = sctp->sctp_faddrs; fp != NULL; fp = faddr.sf_next) {
737 if (mdb_vread(&faddr, sizeof (faddr), (uintptr_t)fp)
738 == -1) {
739 mdb_warn("failed to read faddr at %p",
740 fp);
741 return (DCMD_ERR);
742 }
743 mdb_printf("%p\n", fp);
744 }
745 return (DCMD_OK);
746 }
747
748 mdb_nhconvert(&lport, &connp->conn_lport, sizeof (lport));
749 mdb_nhconvert(&fport, &connp->conn_fport, sizeof (fport));
750 mdb_printf("%<u>%p% %22s S=%-6hu D=%-6hu% STACK=%d ZONE=%d%</u>", addr,
751 state2str(sctp), lport, fport,
752 ns_to_stackid((uintptr_t)connp->conn_netstack), connp->conn_zoneid);
753
754 if (sctp->sctp_faddrs) {
755 sctp_faddr_t faddr;
756 if (mdb_vread(&faddr, sizeof (faddr),
757 (uintptr_t)sctp->sctp_faddrs) != -1)
758 mdb_printf("%<u> %N%</u>", &faddr.sf_faddr);
759 }
760 mdb_printf("\n");
761
762 if (opts & MDB_SCTP_DUMP_ADDRS) {
763 mdb_printf("%<b>Local and Peer Addresses%</b>\n");
764
765 /* Display source addresses */
766 mdb_printf("nsaddrs\t\t%?d\n", sctp->sctp_nsaddrs);
767 (void) mdb_pwalk("sctp_walk_saddr", print_saddr, NULL, addr);
768
769 /* Display peer addresses */
770 mdb_printf("nfaddrs\t\t%?d\n", sctp->sctp_nfaddrs);
771 i = 1;
772 (void) mdb_pwalk("sctp_walk_faddr", print_faddr, &i, addr);
773
774 mdb_printf("lastfaddr\t%?p\tprimary\t\t%?p\n",
775 sctp->sctp_lastfaddr, sctp->sctp_primary);
776 mdb_printf("current\t\t%?p\tlastdata\t%?p\n",
777 sctp->sctp_current, sctp->sctp_lastdata);
778 }
779
780 if (opts & MDB_SCTP_SHOW_OUT) {
781 mdb_printf("%<b>Outbound Data%</b>\n");
782 mdb_printf("xmit_head\t%?p\txmit_tail\t%?p\n",
783 sctp->sctp_xmit_head, sctp->sctp_xmit_tail);
784 mdb_printf("xmit_unsent\t%?p\txmit_unsent_tail%?p\n",
785 sctp->sctp_xmit_unsent, sctp->sctp_xmit_unsent_tail);
786 mdb_printf("xmit_unacked\t%?p\n", sctp->sctp_xmit_unacked);
787 mdb_printf("unacked\t\t%?u\tunsent\t\t%?ld\n",
788 sctp->sctp_unacked, sctp->sctp_unsent);
789 mdb_printf("ltsn\t\t%?x\tlastack_rxd\t%?x\n",
790 sctp->sctp_ltsn, sctp->sctp_lastack_rxd);
791 mdb_printf("recovery_tsn\t%?x\tadv_pap\t\t%?x\n",
792 sctp->sctp_recovery_tsn, sctp->sctp_adv_pap);
793 mdb_printf("num_ostr\t%?hu\tostrcntrs\t%?p\n",
794 sctp->sctp_num_ostr, sctp->sctp_ostrcntrs);
795 mdb_printf("pad_mp\t\t%?p\terr_chunks\t%?p\n",
796 sctp->sctp_pad_mp, sctp->sctp_err_chunks);
797 mdb_printf("err_len\t\t%?u\n", sctp->sctp_err_len);
798
799 mdb_printf("%<b>Default Send Parameters%</b>\n");
800 mdb_printf("def_stream\t%?u\tdef_flags\t%?x\n",
801 sctp->sctp_def_stream, sctp->sctp_def_flags);
802 mdb_printf("def_ppid\t%?x\tdef_context\t%?x\n",
803 sctp->sctp_def_ppid, sctp->sctp_def_context);
804 mdb_printf("def_timetolive\t%?u\n",
805 sctp->sctp_def_timetolive);
806 }
807
808 if (opts & MDB_SCTP_SHOW_IN) {
809 mdb_printf("%<b>Inbound Data%</b>\n");
810 mdb_printf("sack_info\t%?p\tsack_gaps\t%?d\n",
811 sctp->sctp_sack_info, sctp->sctp_sack_gaps);
812 dump_sack_info((uintptr_t)sctp->sctp_sack_info);
813 mdb_printf("ftsn\t\t%?x\tlastacked\t%?x\n",
814 sctp->sctp_ftsn, sctp->sctp_lastacked);
815 mdb_printf("istr_nmsgs\t%?d\tsack_toggle\t%?d\n",
816 sctp->sctp_istr_nmsgs, sctp->sctp_sack_toggle);
817 mdb_printf("ack_mp\t\t%?p\n", sctp->sctp_ack_mp);
818 mdb_printf("num_istr\t%?hu\tinstr\t\t%?p\n",
819 sctp->sctp_num_istr, sctp->sctp_instr);
820 mdb_printf("unord_reass\t%?p\n", sctp->sctp_uo_frags);
821 }
822
823 if (opts & MDB_SCTP_SHOW_RTT) {
824 mdb_printf("%<b>RTT Tracking%</b>\n");
825 mdb_printf("rtt_tsn\t\t%?x\tout_time\t%?ld\n",
826 sctp->sctp_rtt_tsn, sctp->sctp_out_time);
827 }
828
829 if (opts & MDB_SCTP_SHOW_FLOW) {
830 mdb_printf("%<b>Flow Control%</b>\n");
831 mdb_printf("tconn_sndbuf\t%?d\n"
832 "conn_sndlowat\t%?d\tfrwnd\t\t%?u\n"
833 "rwnd\t\t%?u\tlast advertised rwnd\t%?u\n"
834 "rxqueued\t%?u\tcwnd_max\t%?u\n", connp->conn_sndbuf,
835 connp->conn_sndlowat, sctp->sctp_frwnd,
836 sctp->sctp_rwnd, sctp->sctp_arwnd, sctp->sctp_rxqueued,
837 sctp->sctp_cwnd_max);
838 }
839
840 if (opts & MDB_SCTP_SHOW_HDR) {
841 mdb_printf("%<b>Composite Headers%</b>\n");
842 mdb_printf("iphc\t\t%?p\tiphc6\t\t%?p\n"
843 "iphc_len\t%?d\tiphc6_len\t%?d\n"
844 "hdr_len\t\t%?d\thdr6_len\t%?d\n"
845 "ipha\t\t%?p\tip6h\t\t%?p\n"
846 "ip_hdr_len\t%?d\tip_hdr6_len\t%?d\n"
847 "sctph\t\t%?p\tsctph6\t\t%?p\n"
848 "lvtag\t\t%?x\tfvtag\t\t%?x\n", sctp->sctp_iphc,
849 sctp->sctp_iphc6, sctp->sctp_iphc_len,
850 sctp->sctp_iphc6_len, sctp->sctp_hdr_len,
851 sctp->sctp_hdr6_len, sctp->sctp_ipha, sctp->sctp_ip6h,
852 sctp->sctp_ip_hdr_len, sctp->sctp_ip_hdr6_len,
853 sctp->sctp_sctph, sctp->sctp_sctph6, sctp->sctp_lvtag,
854 sctp->sctp_fvtag);
855 }
856
857 if (opts & MDB_SCTP_SHOW_PMTUD) {
858 mdb_printf("%<b>PMTUd%</b>\n");
859 mdb_printf("last_mtu_probe\t%?ld\tmtu_probe_intvl\t%?ld\n"
860 "mss\t\t%?u\n",
861 sctp->sctp_last_mtu_probe, sctp->sctp_mtu_probe_intvl,
862 sctp->sctp_mss);
863 }
864
865 if (opts & MDB_SCTP_SHOW_RXT) {
866 mdb_printf("%<b>Retransmit Info%</b>\n");
867 mdb_printf("cookie_mp\t%?p\tstrikes\t\t%?d\n"
868 "max_init_rxt\t%?d\tpa_max_rxt\t%?d\n"
869 "pp_max_rxt\t%?d\trto_max\t\t%?u\n"
870 "rto_min\t\t%?u\trto_initial\t%?u\n"
871 "init_rto_max\t%?u\n"
872 "rxt_nxttsn\t%?u\trxt_maxtsn\t%?u\n", sctp->sctp_cookie_mp,
873 sctp->sctp_strikes, sctp->sctp_max_init_rxt,
874 sctp->sctp_pa_max_rxt, sctp->sctp_pp_max_rxt,
875 sctp->sctp_rto_max, sctp->sctp_rto_min,
876 sctp->sctp_rto_initial, sctp->sctp_rto_max_init,
877 sctp->sctp_rxt_nxttsn, sctp->sctp_rxt_maxtsn);
878 }
879
880 if (opts & MDB_SCTP_SHOW_CONN) {
881 mdb_printf("%<b>Connection State%</b>\n");
882 mdb_printf("last_secret_update%?ld\n",
883 sctp->sctp_last_secret_update);
884
885 mdb_printf("secret\t\t");
886 for (i = 0; i < SCTP_SECRET_LEN; i++) {
887 if (i % 2 == 0)
888 mdb_printf("0x%02x", sctp->sctp_secret[i]);
889 else
890 mdb_printf("%02x ", sctp->sctp_secret[i]);
891 }
892 mdb_printf("\n");
893 mdb_printf("old_secret\t");
894 for (i = 0; i < SCTP_SECRET_LEN; i++) {
895 if (i % 2 == 0)
896 mdb_printf("0x%02x", sctp->sctp_old_secret[i]);
897 else
898 mdb_printf("%02x ", sctp->sctp_old_secret[i]);
899 }
900 mdb_printf("\n");
901 }
902
903 if (opts & MDB_SCTP_SHOW_STATS) {
904 mdb_printf("%<b>Stats Counters%</b>\n");
905 mdb_printf("opkts\t\t%?llu\tobchunks\t%?llu\n"
906 "odchunks\t%?llu\toudchunks\t%?llu\n"
907 "rxtchunks\t%?llu\tT1expire\t%?lu\n"
908 "T2expire\t%?lu\tT3expire\t%?lu\n"
909 "msgcount\t%?llu\tprsctpdrop\t%?llu\n"
910 "AssocStartTime\t%?lu\n",
911 sctp->sctp_opkts, sctp->sctp_obchunks,
912 sctp->sctp_odchunks, sctp->sctp_oudchunks,
913 sctp->sctp_rxtchunks, sctp->sctp_T1expire,
914 sctp->sctp_T2expire, sctp->sctp_T3expire,
915 sctp->sctp_msgcount, sctp->sctp_prsctpdrop,
916 sctp->sctp_assoc_start_time);
917 mdb_printf("ipkts\t\t%?llu\tibchunks\t%?llu\n"
918 "idchunks\t%?llu\tiudchunks\t%?llu\n"
919 "fragdmsgs\t%?llu\treassmsgs\t%?llu\n",
920 sctp->sctp_ipkts, sctp->sctp_ibchunks,
921 sctp->sctp_idchunks, sctp->sctp_iudchunks,
922 sctp->sctp_fragdmsgs, sctp->sctp_reassmsgs);
923 }
924
925 if (opts & MDB_SCTP_SHOW_HASH) {
926 mdb_printf("%<b>Hash Tables%</b>\n");
927 mdb_printf("conn_hash_next\t%?p\t", sctp->sctp_conn_hash_next);
928 mdb_printf("conn_hash_prev\t%?p\n", sctp->sctp_conn_hash_prev);
929
930 mdb_printf("listen_hash_next%?p\t",
931 sctp->sctp_listen_hash_next);
932 mdb_printf("listen_hash_prev%?p\n",
933 sctp->sctp_listen_hash_prev);
934 mdb_nhconvert(&lport, &connp->conn_lport, sizeof (lport));
935 mdb_printf("[ listen_hash bucket\t%?d ]\n",
936 SCTP_LISTEN_HASH(lport));
937
938 mdb_printf("conn_tfp\t%?p\t", sctp->sctp_conn_tfp);
939 mdb_printf("listen_tfp\t%?p\n", sctp->sctp_listen_tfp);
940
941 mdb_printf("bind_hash\t%?p\tptpbhn\t\t%?p\n",
942 sctp->sctp_bind_hash, sctp->sctp_ptpbhn);
943 mdb_printf("bind_lockp\t%?p\n",
944 sctp->sctp_bind_lockp);
945 mdb_printf("[ bind_hash bucket\t%?d ]\n",
946 SCTP_BIND_HASH(lport));
947 }
948
949 if (opts & MDB_SCTP_SHOW_CLOSE) {
950 mdb_printf("%<b>Cleanup / Close%</b>\n");
951 mdb_printf("shutdown_faddr\t%?p\tclient_errno\t%?d\n"
952 "lingertime\t%?d\trefcnt\t\t%?hu\n",
953 sctp->sctp_shutdown_faddr, sctp->sctp_client_errno,
954 connp->conn_lingertime, sctp->sctp_refcnt);
955 }
956
957 if (opts & MDB_SCTP_SHOW_MISC) {
958 mdb_printf("%<b>Miscellaneous%</b>\n");
959 mdb_printf("bound_if\t%?u\theartbeat_mp\t%?p\n"
960 "family\t\t%?u\tipversion\t%?hu\n"
961 "hb_interval\t%?u\tautoclose\t%?d\n"
962 "active\t\t%?ld\ttx_adaptation_code%?x\n"
963 "rx_adaptation_code%?x\ttimer_mp\t%?p\n"
964 "partial_delivery_point\t%?d\n",
965 connp->conn_bound_if, sctp->sctp_heartbeat_mp,
966 connp->conn_family,
967 connp->conn_ipversion,
968 sctp->sctp_hb_interval, sctp->sctp_autoclose,
969 sctp->sctp_active, sctp->sctp_tx_adaptation_code,
970 sctp->sctp_rx_adaptation_code, sctp->sctp_timer_mp,
971 sctp->sctp_pd_point);
972 }
973
974 if (opts & MDB_SCTP_SHOW_EXT) {
975 mdb_printf("%<b>Extensions and Reliable Ctl Chunks%</b>\n");
976 mdb_printf("cxmit_list\t%?p\tlcsn\t\t%?x\n"
977 "fcsn\t\t%?x\n", sctp->sctp_cxmit_list, sctp->sctp_lcsn,
978 sctp->sctp_fcsn);
979 }
980
981 if (opts & MDB_SCTP_SHOW_FLAGS) {
982 mdb_printf("%<b>Flags%</b>\n");
983 show_sctp_flags(sctp);
984 }
985
986 return (DCMD_OK);
987 }
988
989 typedef struct fanout_walk_data {
990 int index;
991 int size;
992 uintptr_t sctp;
993 sctp_tf_t *fanout;
994 uintptr_t (*getnext)(sctp_t *);
995 } fanout_walk_data_t;
996
997 typedef struct fanout_init {
998 const char *nested_walker_name;
999 size_t offset; /* for what used to be a symbol */
1000 int (*getsize)(sctp_stack_t *);
1001 uintptr_t (*getnext)(sctp_t *);
1002 } fanout_init_t;
1003
1004 static uintptr_t
1005 listen_next(sctp_t *sctp)
1006 {
1007 return ((uintptr_t)sctp->sctp_listen_hash_next);
1008 }
1009
1010 /* ARGSUSED */
1011 static int
1012 listen_size(sctp_stack_t *sctps)
1013 {
1014 return (SCTP_LISTEN_FANOUT_SIZE);
1015 }
1016
1017 static uintptr_t
1018 conn_next(sctp_t *sctp)
1019 {
1020 return ((uintptr_t)sctp->sctp_conn_hash_next);
1021 }
1022
1023 static int
1024 conn_size(sctp_stack_t *sctps)
1025 {
1026 int size;
1027 uintptr_t kaddr;
1028
1029 kaddr = (uintptr_t)&sctps->sctps_conn_hash_size;
1030
1031 if (mdb_vread(&size, sizeof (size), kaddr) == -1) {
1032 mdb_warn("can't read 'sctps_conn_hash_size' at %p", kaddr);
1033 return (1);
1034 }
1035 return (size);
1036 }
1037
1038 static uintptr_t
1039 bind_next(sctp_t *sctp)
1040 {
1041 return ((uintptr_t)sctp->sctp_bind_hash);
1042 }
1043
1044 /* ARGSUSED */
1045 static int
1046 bind_size(sctp_stack_t *sctps)
1047 {
1048 return (SCTP_BIND_FANOUT_SIZE);
1049 }
1050
1051 static intptr_t
1052 find_next_hash_item(fanout_walk_data_t *fw)
1053 {
1054 sctp_tf_t tf;
1055 sctp_t sctp;
1056
1057 /* first try to continue down the hash chain */
1058 if (fw->sctp != (uintptr_t)NULL) {
1059 /* try to get next in hash chain */
1060 if (mdb_vread(&sctp, sizeof (sctp), fw->sctp) == -1) {
1061 mdb_warn("failed to read sctp at %p", fw->sctp);
1062 return ((uintptr_t)NULL);
1063 }
1064 fw->sctp = fw->getnext(&sctp);
1065 if (fw->sctp != (uintptr_t)NULL)
1066 return (fw->sctp);
1067 else
1068 /* end of chain; go to next bucket */
1069 fw->index++;
1070 }
1071
1072 /* find a new hash chain, traversing the buckets */
1073 for (; fw->index < fw->size; fw->index++) {
1074 /* read the current hash line for an sctp */
1075 if (mdb_vread(&tf, sizeof (tf),
1076 (uintptr_t)(fw->fanout + fw->index)) == -1) {
1077 mdb_warn("failed to read tf at %p",
1078 fw->fanout + fw->index);
1079 return ((uintptr_t)NULL);
1080 }
1081 if (tf.tf_sctp != NULL) {
1082 /* start of a new chain */
1083 fw->sctp = (uintptr_t)tf.tf_sctp;
1084 return (fw->sctp);
1085 }
1086 }
1087 return ((uintptr_t)NULL);
1088 }
1089
1090 static int
1091 fanout_stack_walk_init(mdb_walk_state_t *wsp)
1092 {
1093 fanout_walk_data_t *lw;
1094 fanout_init_t *fi = wsp->walk_arg;
1095 sctp_stack_t *sctps = (sctp_stack_t *)wsp->walk_addr;
1096 uintptr_t kaddr;
1097
1098 if (mdb_vread(&kaddr, sizeof (kaddr),
1099 wsp->walk_addr + fi->offset) == -1) {
1100 mdb_warn("can't read sctp fanout at %p",
1101 wsp->walk_addr + fi->offset);
1102 return (WALK_ERR);
1103 }
1104
1105 lw = mdb_alloc(sizeof (*lw), UM_SLEEP);
1106 lw->index = 0;
1107 lw->size = fi->getsize(sctps);
1108 lw->sctp = (uintptr_t)NULL;
1109 lw->fanout = (sctp_tf_t *)kaddr;
1110 lw->getnext = fi->getnext;
1111
1112 if ((wsp->walk_addr = find_next_hash_item(lw)) == (uintptr_t)NULL) {
1113 return (WALK_DONE);
1114 }
1115 wsp->walk_data = lw;
1116 return (WALK_NEXT);
1117 }
1118
1119 static int
1120 fanout_stack_walk_step(mdb_walk_state_t *wsp)
1121 {
1122 fanout_walk_data_t *fw = wsp->walk_data;
1123 uintptr_t addr = wsp->walk_addr;
1124 sctp_t sctp;
1125 int status;
1126
1127 if (mdb_vread(&sctp, sizeof (sctp), addr) == -1) {
1128 mdb_warn("failed to read sctp at %p", addr);
1129 return (WALK_DONE);
1130 }
1131
1132 status = wsp->walk_callback(addr, &sctp, wsp->walk_cbdata);
1133 if (status != WALK_NEXT)
1134 return (status);
1135
1136 if ((wsp->walk_addr = find_next_hash_item(fw)) == (uintptr_t)NULL)
1137 return (WALK_DONE);
1138
1139 return (WALK_NEXT);
1140 }
1141
1142 static void
1143 fanout_stack_walk_fini(mdb_walk_state_t *wsp)
1144 {
1145 fanout_walk_data_t *fw = wsp->walk_data;
1146
1147 mdb_free(fw, sizeof (*fw));
1148 }
1149
1150 int
1151 fanout_walk_init(mdb_walk_state_t *wsp)
1152 {
1153 if (mdb_layered_walk("sctp_stacks", wsp) == -1) {
1154 mdb_warn("can't walk 'sctp_stacks'");
1155 return (WALK_ERR);
1156 }
1157
1158 return (WALK_NEXT);
1159 }
1160
1161 int
1162 fanout_walk_step(mdb_walk_state_t *wsp)
1163 {
1164 fanout_init_t *fi = wsp->walk_arg;
1165
1166 if (mdb_pwalk(fi->nested_walker_name, wsp->walk_callback,
1167 wsp->walk_cbdata, wsp->walk_addr) == -1) {
1168 mdb_warn("couldn't walk '%s'for address %p",
1169 fi->nested_walker_name, wsp->walk_addr);
1170 return (WALK_ERR);
1171 }
1172 return (WALK_NEXT);
1173 }
1174
1175 int
1176 sctps_walk_init(mdb_walk_state_t *wsp)
1177 {
1178
1179 if (mdb_layered_walk("sctp_stacks", wsp) == -1) {
1180 mdb_warn("can't walk 'sctp_stacks'");
1181 return (WALK_ERR);
1182 }
1183
1184 return (WALK_NEXT);
1185 }
1186
1187 int
1188 sctps_walk_step(mdb_walk_state_t *wsp)
1189 {
1190 uintptr_t kaddr;
1191
1192 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_list);
1193 if (mdb_pwalk("list", wsp->walk_callback,
1194 wsp->walk_cbdata, kaddr) == -1) {
1195 mdb_warn("couldn't walk 'list' for address %p", kaddr);
1196 return (WALK_ERR);
1197 }
1198 return (WALK_NEXT);
1199 }
1200
1201 static int
1202 sctp_walk_faddr_init(mdb_walk_state_t *wsp)
1203 {
1204 sctp_t sctp;
1205
1206 if (wsp->walk_addr == (uintptr_t)NULL)
1207 return (WALK_ERR);
1208
1209 if (mdb_vread(&sctp, sizeof (sctp), wsp->walk_addr) == -1) {
1210 mdb_warn("failed to read sctp at %p", wsp->walk_addr);
1211 return (WALK_ERR);
1212 }
1213 if ((wsp->walk_addr = (uintptr_t)sctp.sctp_faddrs) != (uintptr_t)NULL)
1214 return (WALK_NEXT);
1215 else
1216 return (WALK_DONE);
1217 }
1218
1219 static int
1220 sctp_walk_faddr_step(mdb_walk_state_t *wsp)
1221 {
1222 uintptr_t faddr_ptr = wsp->walk_addr;
1223 sctp_faddr_t sctp_faddr;
1224 int status;
1225
1226 if (mdb_vread(&sctp_faddr, sizeof (sctp_faddr_t), faddr_ptr) == -1) {
1227 mdb_warn("failed to read sctp_faddr_t at %p", faddr_ptr);
1228 return (WALK_ERR);
1229 }
1230 status = wsp->walk_callback(faddr_ptr, &sctp_faddr, wsp->walk_cbdata);
1231 if (status != WALK_NEXT)
1232 return (status);
1233 if ((faddr_ptr = (uintptr_t)sctp_faddr.sf_next) == (uintptr_t)NULL) {
1234 return (WALK_DONE);
1235 } else {
1236 wsp->walk_addr = faddr_ptr;
1237 return (WALK_NEXT);
1238 }
1239 }
1240
1241 /*
1242 * Helper structure for sctp_walk_saddr. It stores the sctp_t being walked,
1243 * the current index to the sctp_saddrs[], and the current count of the
1244 * sctp_saddr_ipif_t list.
1245 */
1246 typedef struct {
1247 sctp_t sctp;
1248 int hash_index;
1249 int cur_cnt;
1250 } saddr_walk_t;
1251
1252 static int
1253 sctp_walk_saddr_init(mdb_walk_state_t *wsp)
1254 {
1255 sctp_t *sctp;
1256 int i;
1257 saddr_walk_t *swalker;
1258
1259 if (wsp->walk_addr == (uintptr_t)NULL)
1260 return (WALK_ERR);
1261
1262 swalker = mdb_alloc(sizeof (saddr_walk_t), UM_SLEEP);
1263 sctp = &swalker->sctp;
1264 if (mdb_vread(sctp, sizeof (sctp_t), wsp->walk_addr) == -1) {
1265 mdb_warn("failed to read sctp at %p", wsp->walk_addr);
1266 mdb_free(swalker, sizeof (saddr_walk_t));
1267 return (WALK_ERR);
1268 }
1269
1270 /* Find the first source address. */
1271 for (i = 0; i < SCTP_IPIF_HASH; i++) {
1272 if (sctp->sctp_saddrs[i].ipif_count > 0) {
1273 list_t *addr_list;
1274
1275 addr_list = &sctp->sctp_saddrs[i].sctp_ipif_list;
1276 wsp->walk_addr = (uintptr_t)list_object(addr_list,
1277 addr_list->list_head.list_next);
1278
1279 /* Recode the current info */
1280 swalker->hash_index = i;
1281 swalker->cur_cnt = 1;
1282 wsp->walk_data = swalker;
1283
1284 return (WALK_NEXT);
1285 }
1286 }
1287 return (WALK_DONE);
1288 }
1289
1290 static int
1291 sctp_walk_saddr_step(mdb_walk_state_t *wsp)
1292 {
1293 uintptr_t saddr_ptr = wsp->walk_addr;
1294 sctp_saddr_ipif_t saddr;
1295 saddr_walk_t *swalker;
1296 sctp_t *sctp;
1297 int status;
1298 int i, j;
1299
1300 if (mdb_vread(&saddr, sizeof (sctp_saddr_ipif_t), saddr_ptr) == -1) {
1301 mdb_warn("failed to read sctp_saddr_ipif_t at %p", saddr_ptr);
1302 return (WALK_ERR);
1303 }
1304 status = wsp->walk_callback(saddr_ptr, &saddr, wsp->walk_cbdata);
1305 if (status != WALK_NEXT)
1306 return (status);
1307
1308 swalker = (saddr_walk_t *)wsp->walk_data;
1309 sctp = &swalker->sctp;
1310 i = swalker->hash_index;
1311 j = swalker->cur_cnt;
1312
1313 /*
1314 * If there is still a source address in the current list, return it.
1315 * Otherwise, go to the next list in the sctp_saddrs[].
1316 */
1317 if (j++ < sctp->sctp_saddrs[i].ipif_count) {
1318 wsp->walk_addr = (uintptr_t)saddr.saddr_ipif.list_next;
1319 swalker->cur_cnt = j;
1320 return (WALK_NEXT);
1321 } else {
1322 list_t *lst;
1323
1324 for (i = i + 1; i < SCTP_IPIF_HASH; i++) {
1325 if (sctp->sctp_saddrs[i].ipif_count > 0) {
1326 lst = &sctp->sctp_saddrs[i].sctp_ipif_list;
1327 wsp->walk_addr = (uintptr_t)list_object(
1328 lst, lst->list_head.list_next);
1329 swalker->hash_index = i;
1330 swalker->cur_cnt = 1;
1331 return (WALK_NEXT);
1332 }
1333 }
1334 }
1335 return (WALK_DONE);
1336 }
1337
1338 static void
1339 sctp_walk_saddr_fini(mdb_walk_state_t *wsp)
1340 {
1341 saddr_walk_t *swalker = (saddr_walk_t *)wsp->walk_data;
1342
1343 mdb_free(swalker, sizeof (saddr_walk_t));
1344 }
1345
1346
1347 typedef struct ill_walk_data {
1348 sctp_ill_hash_t ills[SCTP_ILL_HASH];
1349 uint32_t count;
1350 } ill_walk_data_t;
1351
1352 typedef struct ipuf_walk_data {
1353 sctp_ipif_hash_t ipifs[SCTP_IPIF_HASH];
1354 uint32_t count;
1355 } ipif_walk_data_t;
1356
1357
1358 int
1359 sctp_ill_walk_init(mdb_walk_state_t *wsp)
1360 {
1361 if (mdb_layered_walk("sctp_stacks", wsp) == -1) {
1362 mdb_warn("can't walk 'sctp_stacks'");
1363 return (WALK_ERR);
1364 }
1365
1366 return (WALK_NEXT);
1367 }
1368
1369 int
1370 sctp_ill_walk_step(mdb_walk_state_t *wsp)
1371 {
1372 if (mdb_pwalk("sctp_stack_walk_ill", wsp->walk_callback,
1373 wsp->walk_cbdata, wsp->walk_addr) == -1) {
1374 mdb_warn("couldn't walk 'sctp_stack_walk_ill' for addr %p",
1375 wsp->walk_addr);
1376 return (WALK_ERR);
1377 }
1378 return (WALK_NEXT);
1379 }
1380
1381 /*
1382 * wsp->walk_addr is the address of sctps_ill_list
1383 */
1384 static int
1385 sctp_stack_ill_walk_init(mdb_walk_state_t *wsp)
1386 {
1387 ill_walk_data_t iw;
1388 intptr_t i;
1389 uintptr_t kaddr, uaddr;
1390 size_t offset;
1391
1392 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_ills_count);
1393 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) {
1394 mdb_warn("can't read sctps_ills_count at %p", kaddr);
1395 return (WALK_ERR);
1396 }
1397 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ills);
1398
1399 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) {
1400 mdb_warn("can't read scpts_g_ills %p", kaddr);
1401 return (WALK_ERR);
1402 }
1403 if (mdb_vread(&iw.ills, sizeof (iw.ills), kaddr) == -1) {
1404 mdb_warn("failed to read 'sctps_g_ills'");
1405 return (0);
1406 }
1407
1408 /* Find the first ill. */
1409 for (i = 0; i < SCTP_ILL_HASH; i++) {
1410 if (iw.ills[i].ill_count > 0) {
1411 uaddr = (uintptr_t)&iw.ills[i].sctp_ill_list;
1412 offset = uaddr - (uintptr_t)&iw.ills;
1413 if (mdb_pwalk("list", wsp->walk_callback,
1414 wsp->walk_cbdata, kaddr+offset) == -1) {
1415 mdb_warn("couldn't walk 'list' for address %p",
1416 kaddr);
1417 return (WALK_ERR);
1418 }
1419 }
1420 }
1421 return (WALK_DONE);
1422 }
1423
1424 static int
1425 sctp_stack_ill_walk_step(mdb_walk_state_t *wsp)
1426 {
1427 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer,
1428 wsp->walk_cbdata));
1429 }
1430
1431 int
1432 sctp_ipif_walk_init(mdb_walk_state_t *wsp)
1433 {
1434 if (mdb_layered_walk("sctp_stacks", wsp) == -1) {
1435 mdb_warn("can't walk 'sctp_stacks'");
1436 return (WALK_ERR);
1437 }
1438 return (WALK_NEXT);
1439 }
1440
1441 int
1442 sctp_ipif_walk_step(mdb_walk_state_t *wsp)
1443 {
1444 if (mdb_pwalk("sctp_stack_walk_ipif", wsp->walk_callback,
1445 wsp->walk_cbdata, wsp->walk_addr) == -1) {
1446 mdb_warn("couldn't walk 'sctp_stack_walk_ipif' for addr %p",
1447 wsp->walk_addr);
1448 return (WALK_ERR);
1449 }
1450 return (WALK_NEXT);
1451 }
1452
1453 /*
1454 * wsp->walk_addr is the address of sctps_ipif_list
1455 */
1456 static int
1457 sctp_stack_ipif_walk_init(mdb_walk_state_t *wsp)
1458 {
1459 ipif_walk_data_t iw;
1460 intptr_t i;
1461 uintptr_t kaddr, uaddr;
1462 size_t offset;
1463
1464 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs_count);
1465 if (mdb_vread(&iw.count, sizeof (iw.count), kaddr) == -1) {
1466 mdb_warn("can't read sctps_g_ipifs_count at %p", kaddr);
1467 return (WALK_ERR);
1468 }
1469 kaddr = wsp->walk_addr + OFFSETOF(sctp_stack_t, sctps_g_ipifs);
1470
1471 if (mdb_vread(&kaddr, sizeof (kaddr), kaddr) == -1) {
1472 mdb_warn("can't read scpts_g_ipifs %p", kaddr);
1473 return (WALK_ERR);
1474 }
1475 if (mdb_vread(&iw.ipifs, sizeof (iw.ipifs), kaddr) == -1) {
1476 mdb_warn("failed to read 'sctps_g_ipifs'");
1477 return (0);
1478 }
1479
1480 /* Find the first ipif. */
1481 for (i = 0; i < SCTP_IPIF_HASH; i++) {
1482 if (iw.ipifs[i].ipif_count > 0) {
1483 uaddr = (uintptr_t)&iw.ipifs[i].sctp_ipif_list;
1484 offset = uaddr - (uintptr_t)&iw.ipifs;
1485 if (mdb_pwalk("list", wsp->walk_callback,
1486 wsp->walk_cbdata, kaddr+offset) == -1) {
1487 mdb_warn("couldn't walk 'list' for address %p",
1488 kaddr);
1489 return (WALK_ERR);
1490 }
1491 }
1492 }
1493 return (WALK_DONE);
1494 }
1495
1496 static int
1497 sctp_stack_ipif_walk_step(mdb_walk_state_t *wsp)
1498 {
1499 return (wsp->walk_callback(wsp->walk_addr, wsp->walk_layer,
1500 wsp->walk_cbdata));
1501 }
1502
1503 /*
1504 * Initialization function for the per CPU SCTP stats counter walker of a given
1505 * SCTP stack.
1506 */
1507 int
1508 sctps_sc_walk_init(mdb_walk_state_t *wsp)
1509 {
1510 sctp_stack_t sctps;
1511
1512 if (wsp->walk_addr == (uintptr_t)NULL)
1513 return (WALK_ERR);
1514
1515 if (mdb_vread(&sctps, sizeof (sctps), wsp->walk_addr) == -1) {
1516 mdb_warn("failed to read sctp_stack_t at %p", wsp->walk_addr);
1517 return (WALK_ERR);
1518 }
1519 if (sctps.sctps_sc_cnt == 0)
1520 return (WALK_DONE);
1521
1522 /*
1523 * Store the sctp_stack_t pointer in walk_data. The stepping function
1524 * used it to calculate if the end of the counter has reached.
1525 */
1526 wsp->walk_data = (void *)wsp->walk_addr;
1527 wsp->walk_addr = (uintptr_t)sctps.sctps_sc;
1528 return (WALK_NEXT);
1529 }
1530
1531 /*
1532 * Stepping function for the per CPU SCTP stats counterwalker.
1533 */
1534 int
1535 sctps_sc_walk_step(mdb_walk_state_t *wsp)
1536 {
1537 int status;
1538 sctp_stack_t sctps;
1539 sctp_stats_cpu_t *stats;
1540 char *next, *end;
1541
1542 if (mdb_vread(&sctps, sizeof (sctps), (uintptr_t)wsp->walk_data) ==
1543 -1) {
1544 mdb_warn("failed to read sctp_stack_t at %p", wsp->walk_addr);
1545 return (WALK_ERR);
1546 }
1547 if (mdb_vread(&stats, sizeof (stats), wsp->walk_addr) == -1) {
1548 mdb_warn("failed ot read sctp_stats_cpu_t at %p",
1549 wsp->walk_addr);
1550 return (WALK_ERR);
1551 }
1552 status = wsp->walk_callback((uintptr_t)stats, &stats, wsp->walk_cbdata);
1553 if (status != WALK_NEXT)
1554 return (status);
1555
1556 next = (char *)wsp->walk_addr + sizeof (sctp_stats_cpu_t *);
1557 end = (char *)sctps.sctps_sc + sctps.sctps_sc_cnt *
1558 sizeof (sctp_stats_cpu_t *);
1559 if (next >= end)
1560 return (WALK_DONE);
1561 wsp->walk_addr = (uintptr_t)next;
1562 return (WALK_NEXT);
1563 }
1564
1565 static void
1566 sctp_help(void)
1567 {
1568 mdb_printf("Print information for a given SCTP sctp_t\n\n");
1569 mdb_printf("Options:\n");
1570 mdb_printf("\t-a\t All the information\n");
1571 mdb_printf("\t-f\t Flags\n");
1572 mdb_printf("\t-h\t Hash Tables\n");
1573 mdb_printf("\t-o\t Outbound Data\n");
1574 mdb_printf("\t-i\t Inbound Data\n");
1575 mdb_printf("\t-m\t Miscellaneous Information\n");
1576 mdb_printf("\t-r\t RTT Tracking\n");
1577 mdb_printf("\t-S\t Stats Counters\n");
1578 mdb_printf("\t-F\t Flow Control\n");
1579 mdb_printf("\t-H\t Composite Headers\n");
1580 mdb_printf("\t-p\t PMTUD\n");
1581 mdb_printf("\t-R\t Retransmit Information\n");
1582 mdb_printf("\t-C\t Connection State\n");
1583 mdb_printf("\t-c\t Cleanup / Close\n");
1584 mdb_printf("\t-e\t Extensions and Reliable Control Chunks\n");
1585 mdb_printf("\t-d\t Local and Peer addresses\n");
1586 mdb_printf("\t-P\t Peer addresses\n");
1587 }
1588
1589 static const mdb_dcmd_t dcmds[] = {
1590 { "sctp", ":[-afhoimrSFHpRCcedP]",
1591 "display sctp control structure", sctp, sctp_help },
1592 { "sctp_set", ":", "display a SCTP set", sctp_set },
1593 { "sctp_faddr", ":", "display a faddr", sctp_faddr },
1594 { "sctp_istr_msgs", ":", "display msg list on an instream",
1595 sctp_istr_msgs },
1596 { "sctp_mdata_chunk", ":", "display a data chunk in an mblk",
1597 sctp_mdata_chunk },
1598 { "sctp_xmit_list", ":", "display sctp xmit lists", sctp_xmit_list },
1599 { "sctp_instr", ":", "display instr", sctp_instr },
1600 { "sctp_reass_list", ":", "display reass list", sctp_reass_list },
1601 { "sctp_uo_reass_list", ":", "display un-ordered reass list",
1602 sctp_uo_reass_list },
1603 { NULL }
1604 };
1605
1606 static const fanout_init_t listen_fanout_init = {
1607 "sctp_stack_listen_fanout", OFFSETOF(sctp_stack_t, sctps_listen_fanout),
1608 listen_size, listen_next
1609 };
1610
1611 static const fanout_init_t conn_fanout_init = {
1612 "sctp_stack_conn_fanout", OFFSETOF(sctp_stack_t, sctps_conn_fanout),
1613 conn_size, conn_next
1614 };
1615
1616 static const fanout_init_t bind_fanout_init = {
1617 "sctp_stack_bind_fanout", OFFSETOF(sctp_stack_t, sctps_bind_fanout),
1618 bind_size, bind_next
1619 };
1620
1621 static const mdb_walker_t walkers[] = {
1622 { "sctps", "walk the full chain of sctps for all stacks",
1623 sctps_walk_init, sctps_walk_step, NULL },
1624 { "sctp_listen_fanout", "walk the sctp listen fanout for all stacks",
1625 fanout_walk_init, fanout_walk_step, NULL,
1626 (void *)&listen_fanout_init },
1627 { "sctp_conn_fanout", "walk the sctp conn fanout for all stacks",
1628 fanout_walk_init, fanout_walk_step, NULL,
1629 (void *)&conn_fanout_init },
1630 { "sctp_bind_fanout", "walk the sctp bind fanout for all stacks",
1631 fanout_walk_init, fanout_walk_step, NULL,
1632 (void *)&bind_fanout_init },
1633 { "sctp_stack_listen_fanout",
1634 "walk the sctp listen fanout for one stack",
1635 fanout_stack_walk_init, fanout_stack_walk_step,
1636 fanout_stack_walk_fini,
1637 (void *)&listen_fanout_init },
1638 { "sctp_stack_conn_fanout", "walk the sctp conn fanout for one stack",
1639 fanout_stack_walk_init, fanout_stack_walk_step,
1640 fanout_stack_walk_fini,
1641 (void *)&conn_fanout_init },
1642 { "sctp_stack_bind_fanout", "walk the sctp bind fanoutfor one stack",
1643 fanout_stack_walk_init, fanout_stack_walk_step,
1644 fanout_stack_walk_fini,
1645 (void *)&bind_fanout_init },
1646 { "sctp_walk_faddr", "walk the peer address list of a given sctp_t",
1647 sctp_walk_faddr_init, sctp_walk_faddr_step, NULL },
1648 { "sctp_walk_saddr", "walk the local address list of a given sctp_t",
1649 sctp_walk_saddr_init, sctp_walk_saddr_step, sctp_walk_saddr_fini },
1650 { "sctp_walk_ill", "walk the sctp_g_ills list for all stacks",
1651 sctp_ill_walk_init, sctp_ill_walk_step, NULL },
1652 { "sctp_walk_ipif", "walk the sctp_g_ipif list for all stacks",
1653 sctp_ipif_walk_init, sctp_ipif_walk_step, NULL },
1654 { "sctp_stack_walk_ill", "walk the sctp_g_ills list for one stack",
1655 sctp_stack_ill_walk_init, sctp_stack_ill_walk_step, NULL },
1656 { "sctp_stack_walk_ipif", "walk the sctp_g_ipif list for one stack",
1657 sctp_stack_ipif_walk_init, sctp_stack_ipif_walk_step, NULL },
1658 { "sctps_sc", "walk all the per CPU stats counters of a sctp_stack_t",
1659 sctps_sc_walk_init, sctps_sc_walk_step, NULL },
1660 { NULL }
1661 };
1662
1663 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, walkers };
1664
1665 const mdb_modinfo_t *
1666 _mdb_init(void)
1667 {
1668 return (&modinfo);
1669 }
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