sctp.c revision 311670
1/*- 2 * Copyright (c) 2001-2007, by Weongyo Jeong. All rights reserved. 3 * Copyright (c) 2011, by Michael Tuexen. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * a) Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * b) Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the distribution. 14 * 15 * c) Neither the name of Cisco Systems, Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29 * THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#if 0 33#ifndef lint 34static char sccsid[] = "@(#)sctp.c 0.1 (Berkeley) 4/18/2007"; 35#endif /* not lint */ 36#endif 37 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD: stable/11/usr.bin/netstat/sctp.c 311670 2017-01-08 07:25:22Z delphij $"); 40 41#include <sys/param.h> 42#include <sys/queue.h> 43#include <sys/types.h> 44#include <sys/socket.h> 45#include <sys/socketvar.h> 46#include <sys/sysctl.h> 47#include <sys/protosw.h> 48 49#include <netinet/in.h> 50#include <netinet/sctp.h> 51#include <netinet/sctp_constants.h> 52#include <arpa/inet.h> 53 54#include <err.h> 55#include <errno.h> 56#include <libutil.h> 57#include <netdb.h> 58#include <stdint.h> 59#include <stdio.h> 60#include <stdlib.h> 61#include <stdbool.h> 62#include <string.h> 63#include <unistd.h> 64#include "netstat.h" 65#include <libxo/xo.h> 66 67#ifdef SCTP 68 69static void sctp_statesprint(uint32_t state); 70 71#define NETSTAT_SCTP_STATES_CLOSED 0x0 72#define NETSTAT_SCTP_STATES_BOUND 0x1 73#define NETSTAT_SCTP_STATES_LISTEN 0x2 74#define NETSTAT_SCTP_STATES_COOKIE_WAIT 0x3 75#define NETSTAT_SCTP_STATES_COOKIE_ECHOED 0x4 76#define NETSTAT_SCTP_STATES_ESTABLISHED 0x5 77#define NETSTAT_SCTP_STATES_SHUTDOWN_SENT 0x6 78#define NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED 0x7 79#define NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT 0x8 80#define NETSTAT_SCTP_STATES_SHUTDOWN_PENDING 0x9 81 82static const char *sctpstates[] = { 83 "CLOSED", 84 "BOUND", 85 "LISTEN", 86 "COOKIE_WAIT", 87 "COOKIE_ECHOED", 88 "ESTABLISHED", 89 "SHUTDOWN_SENT", 90 "SHUTDOWN_RECEIVED", 91 "SHUTDOWN_ACK_SENT", 92 "SHUTDOWN_PENDING" 93}; 94 95static LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head; 96struct xladdr_entry { 97 struct xsctp_laddr *xladdr; 98 LIST_ENTRY(xladdr_entry) xladdr_entries; 99}; 100 101static LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head; 102struct xraddr_entry { 103 struct xsctp_raddr *xraddr; 104 LIST_ENTRY(xraddr_entry) xraddr_entries; 105}; 106 107static void 108sctp_print_address(const char *container, union sctp_sockstore *address, 109 int port, int num_port) 110{ 111 struct servent *sp = 0; 112 char line[80], *cp; 113 int width; 114 size_t alen, plen; 115 116 if (container) 117 xo_open_container(container); 118 119 switch (address->sa.sa_family) { 120#ifdef INET 121 case AF_INET: 122 snprintf(line, sizeof(line), "%.*s.", 123 Wflag ? 39 : 16, inetname(&address->sin.sin_addr)); 124 break; 125#endif 126#ifdef INET6 127 case AF_INET6: 128 snprintf(line, sizeof(line), "%.*s.", 129 Wflag ? 39 : 16, inet6name(&address->sin6.sin6_addr)); 130 break; 131#endif 132 default: 133 snprintf(line, sizeof(line), "%.*s.", 134 Wflag ? 39 : 16, ""); 135 break; 136 } 137 alen = strlen(line); 138 cp = line + alen; 139 if (!num_port && port) 140 sp = getservbyport((int)port, "sctp"); 141 if (sp || port == 0) 142 snprintf(cp, sizeof(line) - alen, 143 "%.15s ", sp ? sp->s_name : "*"); 144 else 145 snprintf(cp, sizeof(line) - alen, 146 "%d ", ntohs((u_short)port)); 147 width = Wflag ? 45 : 22; 148 xo_emit("{d:target/%-*.*s} ", width, width, line); 149 150 plen = strlen(cp) - 1; 151 alen--; 152 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen, 153 plen, cp); 154 155 if (container) 156 xo_close_container(container); 157} 158 159static int 160sctp_skip_xinpcb_ifneed(char *buf, const size_t buflen, size_t *offset) 161{ 162 int exist_tcb = 0; 163 struct xsctp_tcb *xstcb; 164 struct xsctp_raddr *xraddr; 165 struct xsctp_laddr *xladdr; 166 167 while (*offset < buflen) { 168 xladdr = (struct xsctp_laddr *)(buf + *offset); 169 *offset += sizeof(struct xsctp_laddr); 170 if (xladdr->last == 1) 171 break; 172 } 173 174 while (*offset < buflen) { 175 xstcb = (struct xsctp_tcb *)(buf + *offset); 176 *offset += sizeof(struct xsctp_tcb); 177 if (xstcb->last == 1) 178 break; 179 180 exist_tcb = 1; 181 182 while (*offset < buflen) { 183 xladdr = (struct xsctp_laddr *)(buf + *offset); 184 *offset += sizeof(struct xsctp_laddr); 185 if (xladdr->last == 1) 186 break; 187 } 188 189 while (*offset < buflen) { 190 xraddr = (struct xsctp_raddr *)(buf + *offset); 191 *offset += sizeof(struct xsctp_raddr); 192 if (xraddr->last == 1) 193 break; 194 } 195 } 196 197 /* 198 * If Lflag is set, we don't care about the return value. 199 */ 200 if (Lflag) 201 return 0; 202 203 return exist_tcb; 204} 205 206static void 207sctp_process_tcb(struct xsctp_tcb *xstcb, 208 char *buf, const size_t buflen, size_t *offset, int *indent) 209{ 210 int i, xl_total = 0, xr_total = 0, x_max; 211 struct xsctp_raddr *xraddr; 212 struct xsctp_laddr *xladdr; 213 struct xladdr_entry *prev_xl = NULL, *xl = NULL, *xl_tmp; 214 struct xraddr_entry *prev_xr = NULL, *xr = NULL, *xr_tmp; 215 216 LIST_INIT(&xladdr_head); 217 LIST_INIT(&xraddr_head); 218 219 /* 220 * Make `struct xladdr_list' list and `struct xraddr_list' list 221 * to handle the address flexibly. 222 */ 223 while (*offset < buflen) { 224 xladdr = (struct xsctp_laddr *)(buf + *offset); 225 *offset += sizeof(struct xsctp_laddr); 226 if (xladdr->last == 1) 227 break; 228 229 prev_xl = xl; 230 xl = malloc(sizeof(struct xladdr_entry)); 231 if (xl == NULL) { 232 xo_warnx("malloc %lu bytes", 233 (u_long)sizeof(struct xladdr_entry)); 234 goto out; 235 } 236 xl->xladdr = xladdr; 237 if (prev_xl == NULL) 238 LIST_INSERT_HEAD(&xladdr_head, xl, xladdr_entries); 239 else 240 LIST_INSERT_AFTER(prev_xl, xl, xladdr_entries); 241 xl_total++; 242 } 243 244 while (*offset < buflen) { 245 xraddr = (struct xsctp_raddr *)(buf + *offset); 246 *offset += sizeof(struct xsctp_raddr); 247 if (xraddr->last == 1) 248 break; 249 250 prev_xr = xr; 251 xr = malloc(sizeof(struct xraddr_entry)); 252 if (xr == NULL) { 253 xo_warnx("malloc %lu bytes", 254 (u_long)sizeof(struct xraddr_entry)); 255 goto out; 256 } 257 xr->xraddr = xraddr; 258 if (prev_xr == NULL) 259 LIST_INSERT_HEAD(&xraddr_head, xr, xraddr_entries); 260 else 261 LIST_INSERT_AFTER(prev_xr, xr, xraddr_entries); 262 xr_total++; 263 } 264 265 /* 266 * Let's print the address infos. 267 */ 268 xo_open_list("address"); 269 xl = LIST_FIRST(&xladdr_head); 270 xr = LIST_FIRST(&xraddr_head); 271 x_max = MAX(xl_total, xr_total); 272 for (i = 0; i < x_max; i++) { 273 xo_open_instance("address"); 274 275 if (((*indent == 0) && i > 0) || *indent > 0) 276 xo_emit("{P:/%-12s} ", " "); 277 278 if (xl != NULL) { 279 sctp_print_address("local", &(xl->xladdr->address), 280 htons(xstcb->local_port), numeric_port); 281 } else { 282 if (Wflag) { 283 xo_emit("{P:/%-45s} ", " "); 284 } else { 285 xo_emit("{P:/%-22s} ", " "); 286 } 287 } 288 289 if (xr != NULL && !Lflag) { 290 sctp_print_address("remote", &(xr->xraddr->address), 291 htons(xstcb->remote_port), numeric_port); 292 } 293 294 if (xl != NULL) 295 xl = LIST_NEXT(xl, xladdr_entries); 296 if (xr != NULL) 297 xr = LIST_NEXT(xr, xraddr_entries); 298 299 if (i == 0 && !Lflag) 300 sctp_statesprint(xstcb->state); 301 302 if (i < x_max) 303 xo_emit("\n"); 304 xo_close_instance("address"); 305 } 306 307out: 308 /* 309 * Free the list which be used to handle the address. 310 */ 311 xl = LIST_FIRST(&xladdr_head); 312 while (xl != NULL) { 313 xl_tmp = LIST_NEXT(xl, xladdr_entries); 314 free(xl); 315 xl = xl_tmp; 316 } 317 318 xr = LIST_FIRST(&xraddr_head); 319 while (xr != NULL) { 320 xr_tmp = LIST_NEXT(xr, xraddr_entries); 321 free(xr); 322 xr = xr_tmp; 323 } 324} 325 326static void 327sctp_process_inpcb(struct xsctp_inpcb *xinpcb, 328 char *buf, const size_t buflen, size_t *offset) 329{ 330 int indent = 0, xladdr_total = 0, is_listening = 0; 331 static int first = 1; 332 const char *tname, *pname; 333 struct xsctp_tcb *xstcb; 334 struct xsctp_laddr *xladdr; 335 size_t offset_laddr; 336 int process_closed; 337 338 if (xinpcb->maxqlen > 0) 339 is_listening = 1; 340 341 if (first) { 342 if (!Lflag) { 343 xo_emit("Active SCTP associations"); 344 if (aflag) 345 xo_emit(" (including servers)"); 346 } else 347 xo_emit("Current listen queue sizes (qlen/maxqlen)"); 348 xo_emit("\n"); 349 if (Lflag) 350 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-8.8s} " 351 "{T:/%-22.22s}\n", 352 "Proto", "Type", "Listen", "Local Address"); 353 else 354 if (Wflag) 355 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-45.45s} " 356 "{T:/%-45.45s} {T:/%s}\n", 357 "Proto", "Type", 358 "Local Address", "Foreign Address", 359 "(state)"); 360 else 361 xo_emit("{T:/%-6.6s} {T:/%-5.5s} {T:/%-22.22s} " 362 "{T:/%-22.22s} {T:/%s}\n", 363 "Proto", "Type", 364 "Local Address", "Foreign Address", 365 "(state)"); 366 first = 0; 367 } 368 xladdr = (struct xsctp_laddr *)(buf + *offset); 369 if ((!aflag && is_listening) || 370 (Lflag && !is_listening)) { 371 sctp_skip_xinpcb_ifneed(buf, buflen, offset); 372 return; 373 } 374 375 if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { 376 /* Can't distinguish between sctp46 and sctp6 */ 377 pname = "sctp46"; 378 } else { 379 pname = "sctp4"; 380 } 381 382 if (xinpcb->flags & SCTP_PCB_FLAGS_TCPTYPE) 383 tname = "1to1"; 384 else if (xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) 385 tname = "1toN"; 386 else 387 tname = "????"; 388 389 if (Lflag) { 390 char buf1[22]; 391 392 snprintf(buf1, sizeof buf1, "%u/%u", 393 xinpcb->qlen, xinpcb->maxqlen); 394 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ", 395 pname, tname); 396 xo_emit("{d:queues/%-8.8s}{e:queue-len/%hu}" 397 "{e:max-queue-len/%hu} ", 398 buf1, xinpcb->qlen, xinpcb->maxqlen); 399 } 400 401 offset_laddr = *offset; 402 process_closed = 0; 403 404 xo_open_list("local-address"); 405retry: 406 while (*offset < buflen) { 407 xladdr = (struct xsctp_laddr *)(buf + *offset); 408 *offset += sizeof(struct xsctp_laddr); 409 if (xladdr->last) { 410 if (aflag && !Lflag && (xladdr_total == 0) && process_closed) { 411 xo_open_instance("local-address"); 412 413 xo_emit("{:protocol/%-6.6s/%s} " 414 "{:type/%-5.5s/%s} ", pname, tname); 415 if (Wflag) { 416 xo_emit("{P:/%-91.91s/%s} " 417 "{:state/CLOSED}", " "); 418 } else { 419 xo_emit("{P:/%-45.45s/%s} " 420 "{:state/CLOSED}", " "); 421 } 422 xo_close_instance("local-address"); 423 } 424 if (process_closed || is_listening) { 425 xo_emit("\n"); 426 } 427 break; 428 } 429 430 if (!Lflag && !is_listening && !process_closed) 431 continue; 432 433 xo_open_instance("local-address"); 434 435 if (xladdr_total == 0) { 436 if (!Lflag) { 437 xo_emit("{:protocol/%-6.6s/%s} " 438 "{:type/%-5.5s/%s} ", pname, tname); 439 } 440 } else { 441 xo_emit("\n"); 442 xo_emit(Lflag ? "{P:/%-21.21s} " : "{P:/%-12.12s} ", 443 " "); 444 } 445 sctp_print_address("local", &(xladdr->address), 446 htons(xinpcb->local_port), numeric_port); 447 if (aflag && !Lflag && xladdr_total == 0) { 448 if (Wflag) { 449 if (process_closed) { 450 xo_emit("{P:/%-45.45s} " 451 "{:state/CLOSED}", " "); 452 } else { 453 xo_emit("{P:/%-45.45s} " 454 "{:state/LISTEN}", " "); 455 } 456 } else { 457 if (process_closed) { 458 xo_emit("{P:/%-22.22s} " 459 "{:state/CLOSED}", " "); 460 } else { 461 xo_emit("{P:/%-22.22s} " 462 "{:state/LISTEN}", " "); 463 } 464 } 465 } 466 xladdr_total++; 467 xo_close_instance("local-address"); 468 } 469 470 xstcb = (struct xsctp_tcb *)(buf + *offset); 471 *offset += sizeof(struct xsctp_tcb); 472 if (aflag && (xladdr_total == 0) && xstcb->last && !process_closed) { 473 process_closed = 1; 474 *offset = offset_laddr; 475 goto retry; 476 } 477 while (xstcb->last == 0 && *offset < buflen) { 478 xo_emit("{:protocol/%-6.6s/%s} {:type/%-5.5s/%s} ", 479 pname, tname); 480 sctp_process_tcb(xstcb, buf, buflen, offset, &indent); 481 indent++; 482 xstcb = (struct xsctp_tcb *)(buf + *offset); 483 *offset += sizeof(struct xsctp_tcb); 484 } 485 486 xo_close_list("local-address"); 487} 488 489/* 490 * Print a summary of SCTP connections related to an Internet 491 * protocol. 492 */ 493void 494sctp_protopr(u_long off __unused, 495 const char *name __unused, int af1 __unused, int proto) 496{ 497 char *buf; 498 const char *mibvar = "net.inet.sctp.assoclist"; 499 size_t offset = 0; 500 size_t len = 0; 501 struct xsctp_inpcb *xinpcb; 502 503 if (proto != IPPROTO_SCTP) 504 return; 505 506 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 507 if (errno != ENOENT) 508 xo_warn("sysctl: %s", mibvar); 509 return; 510 } 511 if ((buf = malloc(len)) == NULL) { 512 xo_warnx("malloc %lu bytes", (u_long)len); 513 return; 514 } 515 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 516 xo_warn("sysctl: %s", mibvar); 517 free(buf); 518 return; 519 } 520 521 xinpcb = (struct xsctp_inpcb *)(buf + offset); 522 offset += sizeof(struct xsctp_inpcb); 523 while (xinpcb->last == 0 && offset < len) { 524 sctp_process_inpcb(xinpcb, buf, (const size_t)len, 525 &offset); 526 527 xinpcb = (struct xsctp_inpcb *)(buf + offset); 528 offset += sizeof(struct xsctp_inpcb); 529 } 530 531 free(buf); 532} 533 534static void 535sctp_statesprint(uint32_t state) 536{ 537 int idx; 538 539 switch (state) { 540 case SCTP_CLOSED: 541 idx = NETSTAT_SCTP_STATES_CLOSED; 542 break; 543 case SCTP_BOUND: 544 idx = NETSTAT_SCTP_STATES_BOUND; 545 break; 546 case SCTP_LISTEN: 547 idx = NETSTAT_SCTP_STATES_LISTEN; 548 break; 549 case SCTP_COOKIE_WAIT: 550 idx = NETSTAT_SCTP_STATES_COOKIE_WAIT; 551 break; 552 case SCTP_COOKIE_ECHOED: 553 idx = NETSTAT_SCTP_STATES_COOKIE_ECHOED; 554 break; 555 case SCTP_ESTABLISHED: 556 idx = NETSTAT_SCTP_STATES_ESTABLISHED; 557 break; 558 case SCTP_SHUTDOWN_SENT: 559 idx = NETSTAT_SCTP_STATES_SHUTDOWN_SENT; 560 break; 561 case SCTP_SHUTDOWN_RECEIVED: 562 idx = NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED; 563 break; 564 case SCTP_SHUTDOWN_ACK_SENT: 565 idx = NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT; 566 break; 567 case SCTP_SHUTDOWN_PENDING: 568 idx = NETSTAT_SCTP_STATES_SHUTDOWN_PENDING; 569 break; 570 default: 571 xo_emit("UNKNOWN {:state/0x%08x}", state); 572 return; 573 } 574 575 xo_emit("{:state/%s}", sctpstates[idx]); 576} 577 578/* 579 * Dump SCTP statistics structure. 580 */ 581void 582sctp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 583{ 584 struct sctpstat sctpstat; 585 586 if (fetch_stats("net.inet.sctp.stats", off, &sctpstat, 587 sizeof(sctpstat), kread) != 0) 588 return; 589 590 xo_open_container(name); 591 xo_emit("{T:/%s}:\n", name); 592 593#define p(f, m) if (sctpstat.f || sflag <= 1) \ 594 xo_emit(m, (uintmax_t)sctpstat.f, plural(sctpstat.f)) 595#define p1a(f, m) if (sctpstat.f || sflag <= 1) \ 596 xo_emit(m, (uintmax_t)sctpstat.f) 597 598 /* 599 * input statistics 600 */ 601 p(sctps_recvpackets, "\t{:received-packets/%ju} " 602 "{N:/input packet%s}\n"); 603 p(sctps_recvdatagrams, "\t\t{:received-datagrams/%ju} " 604 "{N:/datagram%s}\n"); 605 p(sctps_recvpktwithdata, "\t\t{:received-with-data/%ju} " 606 "{N:/packet%s that had data}\n"); 607 p(sctps_recvsacks, "\t\t{:received-sack-chunks/%ju} " 608 "{N:/input SACK chunk%s}\n"); 609 p(sctps_recvdata, "\t\t{:received-data-chunks/%ju} " 610 "{N:/input DATA chunk%s}\n"); 611 p(sctps_recvdupdata, "\t\t{:received-duplicate-data-chunks/%ju} " 612 "{N:/duplicate DATA chunk%s}\n"); 613 p(sctps_recvheartbeat, "\t\t{:received-hb-chunks/%ju} " 614 "{N:/input HB chunk%s}\n"); 615 p(sctps_recvheartbeatack, "\t\t{:received-hb-ack-chunks/%ju} " 616 "{N:/HB-ACK chunk%s}\n"); 617 p(sctps_recvecne, "\t\t{:received-ecne-chunks/%ju} " 618 "{N:/input ECNE chunk%s}\n"); 619 p(sctps_recvauth, "\t\t{:received-auth-chunks/%ju} " 620 "{N:/input AUTH chunk%s}\n"); 621 p(sctps_recvauthmissing, "\t\t{:dropped-missing-auth/%ju} " 622 "{N:/chunk%s missing AUTH}\n"); 623 p(sctps_recvivalhmacid, "\t\t{:dropped-invalid-hmac/%ju} " 624 "{N:/invalid HMAC id%s received}\n"); 625 p(sctps_recvivalkeyid, "\t\t{:dropped-invalid-secret/%ju} " 626 "{N:/invalid secret id%s received}\n"); 627 p1a(sctps_recvauthfailed, "\t\t{:dropped-auth-failed/%ju} " 628 "{N:/auth failed}\n"); 629 p1a(sctps_recvexpress, "\t\t{:received-fast-path/%ju} " 630 "{N:/fast path receives all one chunk}\n"); 631 p1a(sctps_recvexpressm, "\t\t{:receives-fast-path-multipart/%ju} " 632 "{N:/fast path multi-part data}\n"); 633 634 /* 635 * output statistics 636 */ 637 p(sctps_sendpackets, "\t{:sent-packets/%ju} " 638 "{N:/output packet%s}\n"); 639 p(sctps_sendsacks, "\t\t{:sent-sacks/%ju} " 640 "{N:/output SACK%s}\n"); 641 p(sctps_senddata, "\t\t{:sent-data-chunks/%ju} " 642 "{N:/output DATA chunk%s}\n"); 643 p(sctps_sendretransdata, "\t\t{:sent-retransmitted-data-chunks/%ju} " 644 "{N:/retransmitted DATA chunk%s}\n"); 645 p(sctps_sendfastretrans, "\t\t" 646 "{:sent-fast-retransmitted-data-chunks/%ju} " 647 "{N:/fast retransmitted DATA chunk%s}\n"); 648 p(sctps_sendmultfastretrans, "\t\t" 649 "{:sent-fast-retransmitted-data-chunk-multiple-times/%ju} " 650 "{N:/FR'%s that happened more than once to same chunk}\n"); 651 p(sctps_sendheartbeat, "\t\t{:sent-hb-chunks/%ju} " 652 "{N:/output HB chunk%s}\n"); 653 p(sctps_sendecne, "\t\t{:sent-ecne-chunks/%ju} " 654 "{N:/output ECNE chunk%s}\n"); 655 p(sctps_sendauth, "\t\t{:sent-auth-chunks/%ju} " 656 "{N:/output AUTH chunk%s}\n"); 657 p1a(sctps_senderrors, "\t\t{:send-errors/%ju} " 658 "{N:/ip_output error counter}\n"); 659 660 /* 661 * PCKDROPREP statistics 662 */ 663 xo_emit("\t{T:Packet drop statistics}:\n"); 664 xo_open_container("drop-statistics"); 665 p1a(sctps_pdrpfmbox, "\t\t{:middle-box/%ju} " 666 "{N:/from middle box}\n"); 667 p1a(sctps_pdrpfehos, "\t\t{:end-host/%ju} " 668 "{N:/from end host}\n"); 669 p1a(sctps_pdrpmbda, "\t\t{:with-data/%ju} " 670 "{N:/with data}\n"); 671 p1a(sctps_pdrpmbct, "\t\t{:non-data/%ju} " 672 "{N:/non-data, non-endhost}\n"); 673 p1a(sctps_pdrpbwrpt, "\t\t{:non-endhost/%ju} " 674 "{N:/non-endhost, bandwidth rep only}\n"); 675 p1a(sctps_pdrpcrupt, "\t\t{:short-header/%ju} " 676 "{N:/not enough for chunk header}\n"); 677 p1a(sctps_pdrpnedat, "\t\t{:short-data/%ju} " 678 "{N:/not enough data to confirm}\n"); 679 p1a(sctps_pdrppdbrk, "\t\t{:chunk-break/%ju} " 680 "{N:/where process_chunk_drop said break}\n"); 681 p1a(sctps_pdrptsnnf, "\t\t{:tsn-not-found/%ju} " 682 "{N:/failed to find TSN}\n"); 683 p1a(sctps_pdrpdnfnd, "\t\t{:reverse-tsn/%ju} " 684 "{N:/attempt reverse TSN lookup}\n"); 685 p1a(sctps_pdrpdiwnp, "\t\t{:confirmed-zero-window/%ju} " 686 "{N:/e-host confirms zero-rwnd}\n"); 687 p1a(sctps_pdrpdizrw, "\t\t{:middle-box-no-space/%ju} " 688 "{N:/midbox confirms no space}\n"); 689 p1a(sctps_pdrpbadd, "\t\t{:bad-data/%ju} " 690 "{N:/data did not match TSN}\n"); 691 p(sctps_pdrpmark, "\t\t{:tsn-marked-fast-retransmission/%ju} " 692 "{N:/TSN'%s marked for Fast Retran}\n"); 693 xo_close_container("drop-statistics"); 694 695 /* 696 * Timeouts 697 */ 698 xo_emit("\t{T:Timeouts}:\n"); 699 xo_open_container("timeouts"); 700 p(sctps_timoiterator, "\t\t{:iterator/%ju} " 701 "{N:/iterator timer%s fired}\n"); 702 p(sctps_timodata, "\t\t{:t3-data/%ju} " 703 "{N:/T3 data time out%s}\n"); 704 p(sctps_timowindowprobe, "\t\t{:window-probe/%ju} " 705 "{N:/window probe (T3) timer%s fired}\n"); 706 p(sctps_timoinit, "\t\t{:init-timer/%ju} " 707 "{N:/INIT timer%s fired}\n"); 708 p(sctps_timosack, "\t\t{:sack-timer/%ju} " 709 "{N:/sack timer%s fired}\n"); 710 p(sctps_timoshutdown, "\t\t{:shutdown-timer/%ju} " 711 "{N:/shutdown timer%s fired}\n"); 712 p(sctps_timoheartbeat, "\t\t{:heartbeat-timer/%ju} " 713 "{N:/heartbeat timer%s fired}\n"); 714 p1a(sctps_timocookie, "\t\t{:cookie-timer/%ju} " 715 "{N:/a cookie timeout fired}\n"); 716 p1a(sctps_timosecret, "\t\t{:endpoint-changed-cookie/%ju} " 717 "{N:/an endpoint changed its cook}ie" 718 "secret\n"); 719 p(sctps_timopathmtu, "\t\t{:pmtu-timer/%ju} " 720 "{N:/PMTU timer%s fired}\n"); 721 p(sctps_timoshutdownack, "\t\t{:shutdown-timer/%ju} " 722 "{N:/shutdown ack timer%s fired}\n"); 723 p(sctps_timoshutdownguard, "\t\t{:shutdown-guard-timer/%ju} " 724 "{N:/shutdown guard timer%s fired}\n"); 725 p(sctps_timostrmrst, "\t\t{:stream-reset-timer/%ju} " 726 "{N:/stream reset timer%s fired}\n"); 727 p(sctps_timoearlyfr, "\t\t{:early-fast-retransmission-timer/%ju} " 728 "{N:/early FR timer%s fired}\n"); 729 p1a(sctps_timoasconf, "\t\t{:asconf-timer/%ju} " 730 "{N:/an asconf timer fired}\n"); 731 p1a(sctps_timoautoclose, "\t\t{:auto-close-timer/%ju} " 732 "{N:/auto close timer fired}\n"); 733 p(sctps_timoassockill, "\t\t{:asoc-free-timer/%ju} " 734 "{N:/asoc free timer%s expired}\n"); 735 p(sctps_timoinpkill, "\t\t{:input-free-timer/%ju} " 736 "{N:/inp free timer%s expired}\n"); 737 xo_close_container("timeouts"); 738 739#if 0 740 /* 741 * Early fast retransmission counters 742 */ 743 p(sctps_earlyfrstart, "\t%ju TODO:sctps_earlyfrstart\n"); 744 p(sctps_earlyfrstop, "\t%ju TODO:sctps_earlyfrstop\n"); 745 p(sctps_earlyfrmrkretrans, "\t%ju TODO:sctps_earlyfrmrkretrans\n"); 746 p(sctps_earlyfrstpout, "\t%ju TODO:sctps_earlyfrstpout\n"); 747 p(sctps_earlyfrstpidsck1, "\t%ju TODO:sctps_earlyfrstpidsck1\n"); 748 p(sctps_earlyfrstpidsck2, "\t%ju TODO:sctps_earlyfrstpidsck2\n"); 749 p(sctps_earlyfrstpidsck3, "\t%ju TODO:sctps_earlyfrstpidsck3\n"); 750 p(sctps_earlyfrstpidsck4, "\t%ju TODO:sctps_earlyfrstpidsck4\n"); 751 p(sctps_earlyfrstrid, "\t%ju TODO:sctps_earlyfrstrid\n"); 752 p(sctps_earlyfrstrout, "\t%ju TODO:sctps_earlyfrstrout\n"); 753 p(sctps_earlyfrstrtmr, "\t%ju TODO:sctps_earlyfrstrtmr\n"); 754#endif 755 756 /* 757 * Others 758 */ 759 p1a(sctps_hdrops, "\t{:dropped-too-short/%ju} " 760 "{N:/packet shorter than header}\n"); 761 p1a(sctps_badsum, "\t{:dropped-bad-checksum/%ju} " 762 "{N:/checksum error}\n"); 763 p1a(sctps_noport, "\t{:dropped-no-endpoint/%ju} " 764 "{N:/no endpoint for port}\n"); 765 p1a(sctps_badvtag, "\t{:dropped-bad-v-tag/%ju} " 766 "{N:/bad v-tag}\n"); 767 p1a(sctps_badsid, "\t{:dropped-bad-sid/%ju} " 768 "{N:/bad SID}\n"); 769 p1a(sctps_nomem, "\t{:dropped-no-memory/%ju} " 770 "{N:/no memory}\n"); 771 p1a(sctps_fastretransinrtt, "\t{:multiple-fast-retransmits-in-rtt/%ju} " 772 "{N:/number of multiple FR in a RT}T window\n"); 773#if 0 774 p(sctps_markedretrans, "\t%ju TODO:sctps_markedretrans\n"); 775#endif 776 p1a(sctps_naglesent, "\t{:rfc813-sent/%ju} " 777 "{N:/RFC813 allowed sending}\n"); 778 p1a(sctps_naglequeued, "\t{:rfc813-queued/%ju} " 779 "{N:/RFC813 does not allow sending}\n"); 780 p1a(sctps_maxburstqueued, "\t{:max-burst-queued/%ju} " 781 "{N:/times max burst prohibited sending}\n"); 782 p1a(sctps_ifnomemqueued, "\t{:no-memory-in-interface/%ju} " 783 "{N:/look ahead tells us no memory in interface}\n"); 784 p(sctps_windowprobed, "\t{:sent-window-probes/%ju} " 785 "{N:/number%s of window probes sent}\n"); 786 p(sctps_lowlevelerr, "\t{:low-level-err/%ju} " 787 "{N:/time%s an output error to clamp down on next user send}\n"); 788 p(sctps_lowlevelerrusr, "\t{:low-level-user-error/%ju} " 789 "{N:/time%s sctp_senderrors were caused from a user}\n"); 790 p(sctps_datadropchklmt, "\t{:dropped-chunk-limit/%ju} " 791 "{N:/number of in data drop%s due to chunk limit reached}\n"); 792 p(sctps_datadroprwnd, "\t{:dropped-rwnd-limit/%ju} " 793 "{N:/number of in data drop%s due to rwnd limit reached}\n"); 794 p(sctps_ecnereducedcwnd, "\t{:ecn-reduced-cwnd/%ju} " 795 "{N:/time%s a ECN reduced the cwnd}\n"); 796 p1a(sctps_vtagexpress, "\t{:v-tag-express-lookup/%ju} " 797 "{N:/used express lookup via vtag}\n"); 798 p1a(sctps_vtagbogus, "\t{:v-tag-collision/%ju} " 799 "{N:/collision in express lookup}\n"); 800 p(sctps_primary_randry, "\t{:sender-ran-dry/%ju} " 801 "{N:/time%s the sender ran dry of user data on primary}\n"); 802 p1a(sctps_cmt_randry, "\t{:cmt-ran-dry/%ju} " 803 "{N:/same for above}\n"); 804 p(sctps_slowpath_sack, "\t{:slow-path-sack/%ju} " 805 "{N:/sack%s the slow way}\n"); 806 p(sctps_wu_sacks_sent, "\t{:sent-window-update-only-sack/%ju} " 807 "{N:/window update only sack%s sent}\n"); 808 p(sctps_sends_with_flags, "\t{:sent-with-sinfo/%ju} " 809 "{N:/send%s with sinfo_flags !=0}\n"); 810 p(sctps_sends_with_unord, "\t{:sent-with-unordered/%ju} " 811 "{N:/unordered send%s}\n"); 812 p(sctps_sends_with_eof, "\t{:sent-with-eof/%ju} " 813 "{N:/send%s with EOF flag set}\n"); 814 p(sctps_sends_with_abort, "\t{:sent-with-abort/%ju} " 815 "{N:/send%s with ABORT flag set}\n"); 816 p(sctps_protocol_drain_calls, "\t{:protocol-drain-called/%ju} " 817 "{N:/time%s protocol drain called}\n"); 818 p(sctps_protocol_drains_done, "\t{:protocol-drain/%ju} " 819 "{N:/time%s we did a protocol drain}\n"); 820 p(sctps_read_peeks, "\t{:read-with-peek/%ju} " 821 "{N:/time%s recv was called with peek}\n"); 822 p(sctps_cached_chk, "\t{:cached-chunks/%ju} " 823 "{N:/cached chunk%s used}\n"); 824 p1a(sctps_cached_strmoq, "\t{:cached-output-queue-used/%ju} " 825 "{N:/cached stream oq's used}\n"); 826 p(sctps_left_abandon, "\t{:messages-abandoned/%ju} " 827 "{N:/unread message%s abandonded by close}\n"); 828 p1a(sctps_send_burst_avoid, "\t{:send-burst-avoidance/%ju} " 829 "{N:/send burst avoidance, already max burst inflight to net}\n"); 830 p1a(sctps_send_cwnd_avoid, "\t{:send-cwnd-avoidance/%ju} " 831 "{N:/send cwnd full avoidance, already max burst inflight " 832 "to net}\n"); 833 p(sctps_fwdtsn_map_over, "\t{:tsn-map-overruns/%ju} " 834 "{N:/number of map array over-run%s via fwd-tsn's}\n"); 835 836#undef p 837#undef p1a 838 xo_close_container(name); 839} 840 841#endif /* SCTP */ 842