sctp.c revision 330897
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#if 0 35#ifndef lint 36static char sccsid[] = "@(#)sctp.c 0.1 (Berkeley) 4/18/2007"; 37#endif /* not lint */ 38#endif 39 40#include <sys/cdefs.h> 41__FBSDID("$FreeBSD: stable/11/usr.bin/netstat/sctp.c 330897 2018-03-14 03:19:51Z eadler $"); 42 43#include <sys/param.h> 44#include <sys/queue.h> 45#include <sys/types.h> 46#include <sys/socket.h> 47#include <sys/socketvar.h> 48#include <sys/sysctl.h> 49#include <sys/protosw.h> 50 51#include <netinet/in.h> 52#include <netinet/sctp.h> 53#include <netinet/sctp_constants.h> 54#include <arpa/inet.h> 55 56#include <err.h> 57#include <errno.h> 58#include <libutil.h> 59#include <netdb.h> 60#include <stdint.h> 61#include <stdio.h> 62#include <stdlib.h> 63#include <stdbool.h> 64#include <string.h> 65#include <unistd.h> 66#include "netstat.h" 67#include <libxo/xo.h> 68 69#ifdef SCTP 70 71static void sctp_statesprint(uint32_t state); 72 73#define NETSTAT_SCTP_STATES_CLOSED 0x0 74#define NETSTAT_SCTP_STATES_BOUND 0x1 75#define NETSTAT_SCTP_STATES_LISTEN 0x2 76#define NETSTAT_SCTP_STATES_COOKIE_WAIT 0x3 77#define NETSTAT_SCTP_STATES_COOKIE_ECHOED 0x4 78#define NETSTAT_SCTP_STATES_ESTABLISHED 0x5 79#define NETSTAT_SCTP_STATES_SHUTDOWN_SENT 0x6 80#define NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED 0x7 81#define NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT 0x8 82#define NETSTAT_SCTP_STATES_SHUTDOWN_PENDING 0x9 83 84static const char *sctpstates[] = { 85 "CLOSED", 86 "BOUND", 87 "LISTEN", 88 "COOKIE_WAIT", 89 "COOKIE_ECHOED", 90 "ESTABLISHED", 91 "SHUTDOWN_SENT", 92 "SHUTDOWN_RECEIVED", 93 "SHUTDOWN_ACK_SENT", 94 "SHUTDOWN_PENDING" 95}; 96 97static LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head; 98struct xladdr_entry { 99 struct xsctp_laddr *xladdr; 100 LIST_ENTRY(xladdr_entry) xladdr_entries; 101}; 102 103static LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head; 104struct xraddr_entry { 105 struct xsctp_raddr *xraddr; 106 LIST_ENTRY(xraddr_entry) xraddr_entries; 107}; 108 109static void 110sctp_print_address(const char *container, union sctp_sockstore *address, 111 int port, int num_port) 112{ 113 struct servent *sp = 0; 114 char line[80], *cp; 115 int width; 116 size_t alen, plen; 117 118 if (container) 119 xo_open_container(container); 120 121 switch (address->sa.sa_family) { 122#ifdef INET 123 case AF_INET: 124 snprintf(line, sizeof(line), "%.*s.", 125 Wflag ? 39 : 16, inetname(&address->sin.sin_addr)); 126 break; 127#endif 128#ifdef INET6 129 case AF_INET6: 130 snprintf(line, sizeof(line), "%.*s.", 131 Wflag ? 39 : 16, inet6name(&address->sin6.sin6_addr)); 132 break; 133#endif 134 default: 135 snprintf(line, sizeof(line), "%.*s.", 136 Wflag ? 39 : 16, ""); 137 break; 138 } 139 alen = strlen(line); 140 cp = line + alen; 141 if (!num_port && port) 142 sp = getservbyport((int)port, "sctp"); 143 if (sp || port == 0) 144 snprintf(cp, sizeof(line) - alen, 145 "%.15s ", sp ? sp->s_name : "*"); 146 else 147 snprintf(cp, sizeof(line) - alen, 148 "%d ", ntohs((u_short)port)); 149 width = Wflag ? 45 : 22; 150 xo_emit("{d:target/%-*.*s} ", width, width, line); 151 152 plen = strlen(cp) - 1; 153 alen--; 154 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen, 155 plen, cp); 156 157 if (container) 158 xo_close_container(container); 159} 160 161static int 162sctp_skip_xinpcb_ifneed(char *buf, const size_t buflen, size_t *offset) 163{ 164 int exist_tcb = 0; 165 struct xsctp_tcb *xstcb; 166 struct xsctp_raddr *xraddr; 167 struct xsctp_laddr *xladdr; 168 169 while (*offset < buflen) { 170 xladdr = (struct xsctp_laddr *)(buf + *offset); 171 *offset += sizeof(struct xsctp_laddr); 172 if (xladdr->last == 1) 173 break; 174 } 175 176 while (*offset < buflen) { 177 xstcb = (struct xsctp_tcb *)(buf + *offset); 178 *offset += sizeof(struct xsctp_tcb); 179 if (xstcb->last == 1) 180 break; 181 182 exist_tcb = 1; 183 184 while (*offset < buflen) { 185 xladdr = (struct xsctp_laddr *)(buf + *offset); 186 *offset += sizeof(struct xsctp_laddr); 187 if (xladdr->last == 1) 188 break; 189 } 190 191 while (*offset < buflen) { 192 xraddr = (struct xsctp_raddr *)(buf + *offset); 193 *offset += sizeof(struct xsctp_raddr); 194 if (xraddr->last == 1) 195 break; 196 } 197 } 198 199 /* 200 * If Lflag is set, we don't care about the return value. 201 */ 202 if (Lflag) 203 return 0; 204 205 return exist_tcb; 206} 207 208static void 209sctp_process_tcb(struct xsctp_tcb *xstcb, 210 char *buf, const size_t buflen, size_t *offset, int *indent) 211{ 212 int i, xl_total = 0, xr_total = 0, x_max; 213 struct xsctp_raddr *xraddr; 214 struct xsctp_laddr *xladdr; 215 struct xladdr_entry *prev_xl = NULL, *xl = NULL, *xl_tmp; 216 struct xraddr_entry *prev_xr = NULL, *xr = NULL, *xr_tmp; 217 218 LIST_INIT(&xladdr_head); 219 LIST_INIT(&xraddr_head); 220 221 /* 222 * Make `struct xladdr_list' list and `struct xraddr_list' list 223 * to handle the address flexibly. 224 */ 225 while (*offset < buflen) { 226 xladdr = (struct xsctp_laddr *)(buf + *offset); 227 *offset += sizeof(struct xsctp_laddr); 228 if (xladdr->last == 1) 229 break; 230 231 prev_xl = xl; 232 xl = malloc(sizeof(struct xladdr_entry)); 233 if (xl == NULL) { 234 xo_warnx("malloc %lu bytes", 235 (u_long)sizeof(struct xladdr_entry)); 236 goto out; 237 } 238 xl->xladdr = xladdr; 239 if (prev_xl == NULL) 240 LIST_INSERT_HEAD(&xladdr_head, xl, xladdr_entries); 241 else 242 LIST_INSERT_AFTER(prev_xl, xl, xladdr_entries); 243 xl_total++; 244 } 245 246 while (*offset < buflen) { 247 xraddr = (struct xsctp_raddr *)(buf + *offset); 248 *offset += sizeof(struct xsctp_raddr); 249 if (xraddr->last == 1) 250 break; 251 252 prev_xr = xr; 253 xr = malloc(sizeof(struct xraddr_entry)); 254 if (xr == NULL) { 255 xo_warnx("malloc %lu bytes", 256 (u_long)sizeof(struct xraddr_entry)); 257 goto out; 258 } 259 xr->xraddr = xraddr; 260 if (prev_xr == NULL) 261 LIST_INSERT_HEAD(&xraddr_head, xr, xraddr_entries); 262 else 263 LIST_INSERT_AFTER(prev_xr, xr, xraddr_entries); 264 xr_total++; 265 } 266 267 /* 268 * Let's print the address infos. 269 */ 270 xo_open_list("address"); 271 xl = LIST_FIRST(&xladdr_head); 272 xr = LIST_FIRST(&xraddr_head); 273 x_max = MAX(xl_total, xr_total); 274 for (i = 0; i < x_max; i++) { 275 xo_open_instance("address"); 276 277 if (((*indent == 0) && i > 0) || *indent > 0) 278 xo_emit("{P:/%-12s} ", " "); 279 280 if (xl != NULL) { 281 sctp_print_address("local", &(xl->xladdr->address), 282 htons(xstcb->local_port), numeric_port); 283 } else { 284 if (Wflag) { 285 xo_emit("{P:/%-45s} ", " "); 286 } else { 287 xo_emit("{P:/%-22s} ", " "); 288 } 289 } 290 291 if (xr != NULL && !Lflag) { 292 sctp_print_address("remote", &(xr->xraddr->address), 293 htons(xstcb->remote_port), numeric_port); 294 } 295 296 if (xl != NULL) 297 xl = LIST_NEXT(xl, xladdr_entries); 298 if (xr != NULL) 299 xr = LIST_NEXT(xr, xraddr_entries); 300 301 if (i == 0 && !Lflag) 302 sctp_statesprint(xstcb->state); 303 304 if (i < x_max) 305 xo_emit("\n"); 306 xo_close_instance("address"); 307 } 308 309out: 310 /* 311 * Free the list which be used to handle the address. 312 */ 313 xl = LIST_FIRST(&xladdr_head); 314 while (xl != NULL) { 315 xl_tmp = LIST_NEXT(xl, xladdr_entries); 316 free(xl); 317 xl = xl_tmp; 318 } 319 320 xr = LIST_FIRST(&xraddr_head); 321 while (xr != NULL) { 322 xr_tmp = LIST_NEXT(xr, xraddr_entries); 323 free(xr); 324 xr = xr_tmp; 325 } 326} 327 328static void 329sctp_process_inpcb(struct xsctp_inpcb *xinpcb, 330 char *buf, const size_t buflen, size_t *offset) 331{ 332 int indent = 0, xladdr_total = 0, is_listening = 0; 333 static int first = 1; 334 const char *tname, *pname; 335 struct xsctp_tcb *xstcb; 336 struct xsctp_laddr *xladdr; 337 size_t offset_laddr; 338 int process_closed; 339 340 if (xinpcb->maxqlen > 0) 341 is_listening = 1; 342 343 if (first) { 344 if (!Lflag) { 345 xo_emit("Active SCTP associations"); 346 if (aflag) 347 xo_emit(" (including servers)"); 348 } else 349 xo_emit("Current listen queue sizes (qlen/maxqlen)"); 350 xo_emit("\n"); 351 if (Lflag) 352 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-8.8s} " 353 "{T:/%-22.22s}\n", 354 "Proto", "Type", "Listen", "Local Address"); 355 else 356 if (Wflag) 357 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-45.45s} " 358 "{T:/%-45.45s} {T:/%s}\n", 359 "Proto", "Type", 360 "Local Address", "Foreign Address", 361 "(state)"); 362 else 363 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-22.22s} " 364 "{T:/%-22.22s} {T:/%s}\n", 365 "Proto", "Type", 366 "Local Address", "Foreign Address", 367 "(state)"); 368 first = 0; 369 } 370 xladdr = (struct xsctp_laddr *)(buf + *offset); 371 if ((!aflag && is_listening) || 372 (Lflag && !is_listening)) { 373 sctp_skip_xinpcb_ifneed(buf, buflen, offset); 374 return; 375 } 376 377 if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { 378 /* Can't distinguish between sctp46 and sctp6 */ 379 pname = "sctp46"; 380 } else { 381 pname = "sctp4"; 382 } 383 384 if (xinpcb->flags & SCTP_PCB_FLAGS_TCPTYPE) 385 tname = "1to1"; 386 else if (xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) 387 tname = "1toN"; 388 else 389 tname = "????"; 390 391 if (Lflag) { 392 char buf1[22]; 393 394 snprintf(buf1, sizeof buf1, "%u/%u", 395 xinpcb->qlen, xinpcb->maxqlen); 396 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ", 397 pname, tname); 398 xo_emit("{d:queues/%-8.8s}{e:queue-len/%hu}" 399 "{e:max-queue-len/%hu} ", 400 buf1, xinpcb->qlen, xinpcb->maxqlen); 401 } 402 403 offset_laddr = *offset; 404 process_closed = 0; 405 406 xo_open_list("local-address"); 407retry: 408 while (*offset < buflen) { 409 xladdr = (struct xsctp_laddr *)(buf + *offset); 410 *offset += sizeof(struct xsctp_laddr); 411 if (xladdr->last) { 412 if (aflag && !Lflag && (xladdr_total == 0) && process_closed) { 413 xo_open_instance("local-address"); 414 415 xo_emit("{:protocol/%-6.6s/%s} " 416 "{:type/%-5.5s/%s} ", pname, tname); 417 if (Wflag) { 418 xo_emit("{P:/%-91.91s/%s} " 419 "{:state/CLOSED}", " "); 420 } else { 421 xo_emit("{P:/%-45.45s/%s} " 422 "{:state/CLOSED}", " "); 423 } 424 xo_close_instance("local-address"); 425 } 426 if (process_closed || is_listening) { 427 xo_emit("\n"); 428 } 429 break; 430 } 431 432 if (!Lflag && !is_listening && !process_closed) 433 continue; 434 435 xo_open_instance("local-address"); 436 437 if (xladdr_total == 0) { 438 if (!Lflag) { 439 xo_emit("{:protocol/%-6.6s/%s} " 440 "{:type/%-5.5s/%s} ", pname, tname); 441 } 442 } else { 443 xo_emit("\n"); 444 xo_emit(Lflag ? "{P:/%-21.21s} " : "{P:/%-12.12s} ", 445 " "); 446 } 447 sctp_print_address("local", &(xladdr->address), 448 htons(xinpcb->local_port), numeric_port); 449 if (aflag && !Lflag && xladdr_total == 0) { 450 if (Wflag) { 451 if (process_closed) { 452 xo_emit("{P:/%-45.45s} " 453 "{:state/CLOSED}", " "); 454 } else { 455 xo_emit("{P:/%-45.45s} " 456 "{:state/LISTEN}", " "); 457 } 458 } else { 459 if (process_closed) { 460 xo_emit("{P:/%-22.22s} " 461 "{:state/CLOSED}", " "); 462 } else { 463 xo_emit("{P:/%-22.22s} " 464 "{:state/LISTEN}", " "); 465 } 466 } 467 } 468 xladdr_total++; 469 xo_close_instance("local-address"); 470 } 471 472 xstcb = (struct xsctp_tcb *)(buf + *offset); 473 *offset += sizeof(struct xsctp_tcb); 474 if (aflag && (xladdr_total == 0) && xstcb->last && !process_closed) { 475 process_closed = 1; 476 *offset = offset_laddr; 477 goto retry; 478 } 479 while (xstcb->last == 0 && *offset < buflen) { 480 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ", 481 pname, tname); 482 sctp_process_tcb(xstcb, buf, buflen, offset, &indent); 483 indent++; 484 xstcb = (struct xsctp_tcb *)(buf + *offset); 485 *offset += sizeof(struct xsctp_tcb); 486 } 487 488 xo_close_list("local-address"); 489} 490 491/* 492 * Print a summary of SCTP connections related to an Internet 493 * protocol. 494 */ 495void 496sctp_protopr(u_long off __unused, 497 const char *name __unused, int af1 __unused, int proto) 498{ 499 char *buf; 500 const char *mibvar = "net.inet.sctp.assoclist"; 501 size_t offset = 0; 502 size_t len = 0; 503 struct xsctp_inpcb *xinpcb; 504 505 if (proto != IPPROTO_SCTP) 506 return; 507 508 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 509 if (errno != ENOENT) 510 xo_warn("sysctl: %s", mibvar); 511 return; 512 } 513 if ((buf = malloc(len)) == NULL) { 514 xo_warnx("malloc %lu bytes", (u_long)len); 515 return; 516 } 517 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 518 xo_warn("sysctl: %s", mibvar); 519 free(buf); 520 return; 521 } 522 523 xinpcb = (struct xsctp_inpcb *)(buf + offset); 524 offset += sizeof(struct xsctp_inpcb); 525 while (xinpcb->last == 0 && offset < len) { 526 sctp_process_inpcb(xinpcb, buf, (const size_t)len, 527 &offset); 528 529 xinpcb = (struct xsctp_inpcb *)(buf + offset); 530 offset += sizeof(struct xsctp_inpcb); 531 } 532 533 free(buf); 534} 535 536static void 537sctp_statesprint(uint32_t state) 538{ 539 int idx; 540 541 switch (state) { 542 case SCTP_CLOSED: 543 idx = NETSTAT_SCTP_STATES_CLOSED; 544 break; 545 case SCTP_BOUND: 546 idx = NETSTAT_SCTP_STATES_BOUND; 547 break; 548 case SCTP_LISTEN: 549 idx = NETSTAT_SCTP_STATES_LISTEN; 550 break; 551 case SCTP_COOKIE_WAIT: 552 idx = NETSTAT_SCTP_STATES_COOKIE_WAIT; 553 break; 554 case SCTP_COOKIE_ECHOED: 555 idx = NETSTAT_SCTP_STATES_COOKIE_ECHOED; 556 break; 557 case SCTP_ESTABLISHED: 558 idx = NETSTAT_SCTP_STATES_ESTABLISHED; 559 break; 560 case SCTP_SHUTDOWN_SENT: 561 idx = NETSTAT_SCTP_STATES_SHUTDOWN_SENT; 562 break; 563 case SCTP_SHUTDOWN_RECEIVED: 564 idx = NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED; 565 break; 566 case SCTP_SHUTDOWN_ACK_SENT: 567 idx = NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT; 568 break; 569 case SCTP_SHUTDOWN_PENDING: 570 idx = NETSTAT_SCTP_STATES_SHUTDOWN_PENDING; 571 break; 572 default: 573 xo_emit("UNKNOWN {:state/0x%08x}", state); 574 return; 575 } 576 577 xo_emit("{:state/%s}", sctpstates[idx]); 578} 579 580/* 581 * Dump SCTP statistics structure. 582 */ 583void 584sctp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 585{ 586 struct sctpstat sctpstat; 587 588 if (fetch_stats("net.inet.sctp.stats", off, &sctpstat, 589 sizeof(sctpstat), kread) != 0) 590 return; 591 592 xo_open_container(name); 593 xo_emit("{T:/%s}:\n", name); 594 595#define p(f, m) if (sctpstat.f || sflag <= 1) \ 596 xo_emit(m, (uintmax_t)sctpstat.f, plural(sctpstat.f)) 597#define p1a(f, m) if (sctpstat.f || sflag <= 1) \ 598 xo_emit(m, (uintmax_t)sctpstat.f) 599 600 /* 601 * input statistics 602 */ 603 p(sctps_recvpackets, "\t{:received-packets/%ju} " 604 "{N:/input packet%s}\n"); 605 p(sctps_recvdatagrams, "\t\t{:received-datagrams/%ju} " 606 "{N:/datagram%s}\n"); 607 p(sctps_recvpktwithdata, "\t\t{:received-with-data/%ju} " 608 "{N:/packet%s that had data}\n"); 609 p(sctps_recvsacks, "\t\t{:received-sack-chunks/%ju} " 610 "{N:/input SACK chunk%s}\n"); 611 p(sctps_recvdata, "\t\t{:received-data-chunks/%ju} " 612 "{N:/input DATA chunk%s}\n"); 613 p(sctps_recvdupdata, "\t\t{:received-duplicate-data-chunks/%ju} " 614 "{N:/duplicate DATA chunk%s}\n"); 615 p(sctps_recvheartbeat, "\t\t{:received-hb-chunks/%ju} " 616 "{N:/input HB chunk%s}\n"); 617 p(sctps_recvheartbeatack, "\t\t{:received-hb-ack-chunks/%ju} " 618 "{N:/HB-ACK chunk%s}\n"); 619 p(sctps_recvecne, "\t\t{:received-ecne-chunks/%ju} " 620 "{N:/input ECNE chunk%s}\n"); 621 p(sctps_recvauth, "\t\t{:received-auth-chunks/%ju} " 622 "{N:/input AUTH chunk%s}\n"); 623 p(sctps_recvauthmissing, "\t\t{:dropped-missing-auth/%ju} " 624 "{N:/chunk%s missing AUTH}\n"); 625 p(sctps_recvivalhmacid, "\t\t{:dropped-invalid-hmac/%ju} " 626 "{N:/invalid HMAC id%s received}\n"); 627 p(sctps_recvivalkeyid, "\t\t{:dropped-invalid-secret/%ju} " 628 "{N:/invalid secret id%s received}\n"); 629 p1a(sctps_recvauthfailed, "\t\t{:dropped-auth-failed/%ju} " 630 "{N:/auth failed}\n"); 631 p1a(sctps_recvexpress, "\t\t{:received-fast-path/%ju} " 632 "{N:/fast path receives all one chunk}\n"); 633 p1a(sctps_recvexpressm, "\t\t{:receives-fast-path-multipart/%ju} " 634 "{N:/fast path multi-part data}\n"); 635 636 /* 637 * output statistics 638 */ 639 p(sctps_sendpackets, "\t{:sent-packets/%ju} " 640 "{N:/output packet%s}\n"); 641 p(sctps_sendsacks, "\t\t{:sent-sacks/%ju} " 642 "{N:/output SACK%s}\n"); 643 p(sctps_senddata, "\t\t{:sent-data-chunks/%ju} " 644 "{N:/output DATA chunk%s}\n"); 645 p(sctps_sendretransdata, "\t\t{:sent-retransmitted-data-chunks/%ju} " 646 "{N:/retransmitted DATA chunk%s}\n"); 647 p(sctps_sendfastretrans, "\t\t" 648 "{:sent-fast-retransmitted-data-chunks/%ju} " 649 "{N:/fast retransmitted DATA chunk%s}\n"); 650 p(sctps_sendmultfastretrans, "\t\t" 651 "{:sent-fast-retransmitted-data-chunk-multiple-times/%ju} " 652 "{N:/FR'%s that happened more than once to same chunk}\n"); 653 p(sctps_sendheartbeat, "\t\t{:sent-hb-chunks/%ju} " 654 "{N:/output HB chunk%s}\n"); 655 p(sctps_sendecne, "\t\t{:sent-ecne-chunks/%ju} " 656 "{N:/output ECNE chunk%s}\n"); 657 p(sctps_sendauth, "\t\t{:sent-auth-chunks/%ju} " 658 "{N:/output AUTH chunk%s}\n"); 659 p1a(sctps_senderrors, "\t\t{:send-errors/%ju} " 660 "{N:/ip_output error counter}\n"); 661 662 /* 663 * PCKDROPREP statistics 664 */ 665 xo_emit("\t{T:Packet drop statistics}:\n"); 666 xo_open_container("drop-statistics"); 667 p1a(sctps_pdrpfmbox, "\t\t{:middle-box/%ju} " 668 "{N:/from middle box}\n"); 669 p1a(sctps_pdrpfehos, "\t\t{:end-host/%ju} " 670 "{N:/from end host}\n"); 671 p1a(sctps_pdrpmbda, "\t\t{:with-data/%ju} " 672 "{N:/with data}\n"); 673 p1a(sctps_pdrpmbct, "\t\t{:non-data/%ju} " 674 "{N:/non-data, non-endhost}\n"); 675 p1a(sctps_pdrpbwrpt, "\t\t{:non-endhost/%ju} " 676 "{N:/non-endhost, bandwidth rep only}\n"); 677 p1a(sctps_pdrpcrupt, "\t\t{:short-header/%ju} " 678 "{N:/not enough for chunk header}\n"); 679 p1a(sctps_pdrpnedat, "\t\t{:short-data/%ju} " 680 "{N:/not enough data to confirm}\n"); 681 p1a(sctps_pdrppdbrk, "\t\t{:chunk-break/%ju} " 682 "{N:/where process_chunk_drop said break}\n"); 683 p1a(sctps_pdrptsnnf, "\t\t{:tsn-not-found/%ju} " 684 "{N:/failed to find TSN}\n"); 685 p1a(sctps_pdrpdnfnd, "\t\t{:reverse-tsn/%ju} " 686 "{N:/attempt reverse TSN lookup}\n"); 687 p1a(sctps_pdrpdiwnp, "\t\t{:confirmed-zero-window/%ju} " 688 "{N:/e-host confirms zero-rwnd}\n"); 689 p1a(sctps_pdrpdizrw, "\t\t{:middle-box-no-space/%ju} " 690 "{N:/midbox confirms no space}\n"); 691 p1a(sctps_pdrpbadd, "\t\t{:bad-data/%ju} " 692 "{N:/data did not match TSN}\n"); 693 p(sctps_pdrpmark, "\t\t{:tsn-marked-fast-retransmission/%ju} " 694 "{N:/TSN'%s marked for Fast Retran}\n"); 695 xo_close_container("drop-statistics"); 696 697 /* 698 * Timeouts 699 */ 700 xo_emit("\t{T:Timeouts}:\n"); 701 xo_open_container("timeouts"); 702 p(sctps_timoiterator, "\t\t{:iterator/%ju} " 703 "{N:/iterator timer%s fired}\n"); 704 p(sctps_timodata, "\t\t{:t3-data/%ju} " 705 "{N:/T3 data time out%s}\n"); 706 p(sctps_timowindowprobe, "\t\t{:window-probe/%ju} " 707 "{N:/window probe (T3) timer%s fired}\n"); 708 p(sctps_timoinit, "\t\t{:init-timer/%ju} " 709 "{N:/INIT timer%s fired}\n"); 710 p(sctps_timosack, "\t\t{:sack-timer/%ju} " 711 "{N:/sack timer%s fired}\n"); 712 p(sctps_timoshutdown, "\t\t{:shutdown-timer/%ju} " 713 "{N:/shutdown timer%s fired}\n"); 714 p(sctps_timoheartbeat, "\t\t{:heartbeat-timer/%ju} " 715 "{N:/heartbeat timer%s fired}\n"); 716 p1a(sctps_timocookie, "\t\t{:cookie-timer/%ju} " 717 "{N:/a cookie timeout fired}\n"); 718 p1a(sctps_timosecret, "\t\t{:endpoint-changed-cookie/%ju} " 719 "{N:/an endpoint changed its cook}ie" 720 "secret\n"); 721 p(sctps_timopathmtu, "\t\t{:pmtu-timer/%ju} " 722 "{N:/PMTU timer%s fired}\n"); 723 p(sctps_timoshutdownack, "\t\t{:shutdown-timer/%ju} " 724 "{N:/shutdown ack timer%s fired}\n"); 725 p(sctps_timoshutdownguard, "\t\t{:shutdown-guard-timer/%ju} " 726 "{N:/shutdown guard timer%s fired}\n"); 727 p(sctps_timostrmrst, "\t\t{:stream-reset-timer/%ju} " 728 "{N:/stream reset timer%s fired}\n"); 729 p(sctps_timoearlyfr, "\t\t{:early-fast-retransmission-timer/%ju} " 730 "{N:/early FR timer%s fired}\n"); 731 p1a(sctps_timoasconf, "\t\t{:asconf-timer/%ju} " 732 "{N:/an asconf timer fired}\n"); 733 p1a(sctps_timoautoclose, "\t\t{:auto-close-timer/%ju} " 734 "{N:/auto close timer fired}\n"); 735 p(sctps_timoassockill, "\t\t{:asoc-free-timer/%ju} " 736 "{N:/asoc free timer%s expired}\n"); 737 p(sctps_timoinpkill, "\t\t{:input-free-timer/%ju} " 738 "{N:/inp free timer%s expired}\n"); 739 xo_close_container("timeouts"); 740 741#if 0 742 /* 743 * Early fast retransmission counters 744 */ 745 p(sctps_earlyfrstart, "\t%ju TODO:sctps_earlyfrstart\n"); 746 p(sctps_earlyfrstop, "\t%ju TODO:sctps_earlyfrstop\n"); 747 p(sctps_earlyfrmrkretrans, "\t%ju TODO:sctps_earlyfrmrkretrans\n"); 748 p(sctps_earlyfrstpout, "\t%ju TODO:sctps_earlyfrstpout\n"); 749 p(sctps_earlyfrstpidsck1, "\t%ju TODO:sctps_earlyfrstpidsck1\n"); 750 p(sctps_earlyfrstpidsck2, "\t%ju TODO:sctps_earlyfrstpidsck2\n"); 751 p(sctps_earlyfrstpidsck3, "\t%ju TODO:sctps_earlyfrstpidsck3\n"); 752 p(sctps_earlyfrstpidsck4, "\t%ju TODO:sctps_earlyfrstpidsck4\n"); 753 p(sctps_earlyfrstrid, "\t%ju TODO:sctps_earlyfrstrid\n"); 754 p(sctps_earlyfrstrout, "\t%ju TODO:sctps_earlyfrstrout\n"); 755 p(sctps_earlyfrstrtmr, "\t%ju TODO:sctps_earlyfrstrtmr\n"); 756#endif 757 758 /* 759 * Others 760 */ 761 p1a(sctps_hdrops, "\t{:dropped-too-short/%ju} " 762 "{N:/packet shorter than header}\n"); 763 p1a(sctps_badsum, "\t{:dropped-bad-checksum/%ju} " 764 "{N:/checksum error}\n"); 765 p1a(sctps_noport, "\t{:dropped-no-endpoint/%ju} " 766 "{N:/no endpoint for port}\n"); 767 p1a(sctps_badvtag, "\t{:dropped-bad-v-tag/%ju} " 768 "{N:/bad v-tag}\n"); 769 p1a(sctps_badsid, "\t{:dropped-bad-sid/%ju} " 770 "{N:/bad SID}\n"); 771 p1a(sctps_nomem, "\t{:dropped-no-memory/%ju} " 772 "{N:/no memory}\n"); 773 p1a(sctps_fastretransinrtt, "\t{:multiple-fast-retransmits-in-rtt/%ju} " 774 "{N:/number of multiple FR in a RT}T window\n"); 775#if 0 776 p(sctps_markedretrans, "\t%ju TODO:sctps_markedretrans\n"); 777#endif 778 p1a(sctps_naglesent, "\t{:rfc813-sent/%ju} " 779 "{N:/RFC813 allowed sending}\n"); 780 p1a(sctps_naglequeued, "\t{:rfc813-queued/%ju} " 781 "{N:/RFC813 does not allow sending}\n"); 782 p1a(sctps_maxburstqueued, "\t{:max-burst-queued/%ju} " 783 "{N:/times max burst prohibited sending}\n"); 784 p1a(sctps_ifnomemqueued, "\t{:no-memory-in-interface/%ju} " 785 "{N:/look ahead tells us no memory in interface}\n"); 786 p(sctps_windowprobed, "\t{:sent-window-probes/%ju} " 787 "{N:/number%s of window probes sent}\n"); 788 p(sctps_lowlevelerr, "\t{:low-level-err/%ju} " 789 "{N:/time%s an output error to clamp down on next user send}\n"); 790 p(sctps_lowlevelerrusr, "\t{:low-level-user-error/%ju} " 791 "{N:/time%s sctp_senderrors were caused from a user}\n"); 792 p(sctps_datadropchklmt, "\t{:dropped-chunk-limit/%ju} " 793 "{N:/number of in data drop%s due to chunk limit reached}\n"); 794 p(sctps_datadroprwnd, "\t{:dropped-rwnd-limit/%ju} " 795 "{N:/number of in data drop%s due to rwnd limit reached}\n"); 796 p(sctps_ecnereducedcwnd, "\t{:ecn-reduced-cwnd/%ju} " 797 "{N:/time%s a ECN reduced the cwnd}\n"); 798 p1a(sctps_vtagexpress, "\t{:v-tag-express-lookup/%ju} " 799 "{N:/used express lookup via vtag}\n"); 800 p1a(sctps_vtagbogus, "\t{:v-tag-collision/%ju} " 801 "{N:/collision in express lookup}\n"); 802 p(sctps_primary_randry, "\t{:sender-ran-dry/%ju} " 803 "{N:/time%s the sender ran dry of user data on primary}\n"); 804 p1a(sctps_cmt_randry, "\t{:cmt-ran-dry/%ju} " 805 "{N:/same for above}\n"); 806 p(sctps_slowpath_sack, "\t{:slow-path-sack/%ju} " 807 "{N:/sack%s the slow way}\n"); 808 p(sctps_wu_sacks_sent, "\t{:sent-window-update-only-sack/%ju} " 809 "{N:/window update only sack%s sent}\n"); 810 p(sctps_sends_with_flags, "\t{:sent-with-sinfo/%ju} " 811 "{N:/send%s with sinfo_flags !=0}\n"); 812 p(sctps_sends_with_unord, "\t{:sent-with-unordered/%ju} " 813 "{N:/unordered send%s}\n"); 814 p(sctps_sends_with_eof, "\t{:sent-with-eof/%ju} " 815 "{N:/send%s with EOF flag set}\n"); 816 p(sctps_sends_with_abort, "\t{:sent-with-abort/%ju} " 817 "{N:/send%s with ABORT flag set}\n"); 818 p(sctps_protocol_drain_calls, "\t{:protocol-drain-called/%ju} " 819 "{N:/time%s protocol drain called}\n"); 820 p(sctps_protocol_drains_done, "\t{:protocol-drain/%ju} " 821 "{N:/time%s we did a protocol drain}\n"); 822 p(sctps_read_peeks, "\t{:read-with-peek/%ju} " 823 "{N:/time%s recv was called with peek}\n"); 824 p(sctps_cached_chk, "\t{:cached-chunks/%ju} " 825 "{N:/cached chunk%s used}\n"); 826 p1a(sctps_cached_strmoq, "\t{:cached-output-queue-used/%ju} " 827 "{N:/cached stream oq's used}\n"); 828 p(sctps_left_abandon, "\t{:messages-abandoned/%ju} " 829 "{N:/unread message%s abandonded by close}\n"); 830 p1a(sctps_send_burst_avoid, "\t{:send-burst-avoidance/%ju} " 831 "{N:/send burst avoidance, already max burst inflight to net}\n"); 832 p1a(sctps_send_cwnd_avoid, "\t{:send-cwnd-avoidance/%ju} " 833 "{N:/send cwnd full avoidance, already max burst inflight " 834 "to net}\n"); 835 p(sctps_fwdtsn_map_over, "\t{:tsn-map-overruns/%ju} " 836 "{N:/number of map array over-run%s via fwd-tsn's}\n"); 837 838#undef p 839#undef p1a 840 xo_close_container(name); 841} 842 843#endif /* SCTP */ 844