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 34 static char sccsid[] = "@(#)sctp.c 0.1 (Berkeley) 4/18/2007"; 35 #endif /* not lint */ 36 #endif 37 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 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 <string.h> 62 #include <unistd.h> 63 #include "netstat.h" 64 65 #ifdef SCTP 66 67 static void sctp_statesprint(uint32_t state); 68 69 #define NETSTAT_SCTP_STATES_CLOSED 0x0 70 #define NETSTAT_SCTP_STATES_BOUND 0x1 71 #define NETSTAT_SCTP_STATES_LISTEN 0x2 72 #define NETSTAT_SCTP_STATES_COOKIE_WAIT 0x3 73 #define NETSTAT_SCTP_STATES_COOKIE_ECHOED 0x4 74 #define NETSTAT_SCTP_STATES_ESTABLISHED 0x5 75 #define NETSTAT_SCTP_STATES_SHUTDOWN_SENT 0x6 76 #define NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED 0x7 77 #define NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT 0x8 78 #define NETSTAT_SCTP_STATES_SHUTDOWN_PENDING 0x9 79 80 char *sctpstates[] = { 81 "CLOSED", 82 "BOUND", 83 "LISTEN", 84 "COOKIE_WAIT", 85 "COOKIE_ECHOED", 86 "ESTABLISHED", 87 "SHUTDOWN_SENT", 88 "SHUTDOWN_RECEIVED", 89 "SHUTDOWN_ACK_SENT", 90 "SHUTDOWN_PENDING" 91 }; 92 93 LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head; 94 struct xladdr_entry { 95 struct xsctp_laddr *xladdr; 96 LIST_ENTRY(xladdr_entry) xladdr_entries; 97 }; 98 99 LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head; 100 struct xraddr_entry { 101 struct xsctp_raddr *xraddr; 102 LIST_ENTRY(xraddr_entry) xraddr_entries; 103 }; 104 105 /* 106 * Construct an Internet address representation. 107 * If numeric_addr has been supplied, give 108 * numeric value, otherwise try for symbolic name. 109 */ 110 static char * 111 inetname(struct in_addr *inp) 112 { 113 char *cp; 114 static char line[MAXHOSTNAMELEN]; 115 struct hostent *hp; 116 struct netent *np; 117 118 cp = 0; 119 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 120 int net = inet_netof(*inp); 121 int lna = inet_lnaof(*inp); 122 123 if (lna == INADDR_ANY) { 124 np = getnetbyaddr(net, AF_INET); 125 if (np) 126 cp = np->n_name; 127 } 128 if (cp == 0) { 129 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 130 if (hp) { 131 cp = hp->h_name; 132 trimdomain(cp, strlen(cp)); 133 } 134 } 135 } 136 if (inp->s_addr == INADDR_ANY) 137 strcpy(line, "*"); 138 else if (cp) { 139 strlcpy(line, cp, sizeof(line)); 140 } else { 141 inp->s_addr = ntohl(inp->s_addr); 142 #define C(x) ((u_int)((x) & 0xff)) 143 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 144 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 145 inp->s_addr = htonl(inp->s_addr); 146 } 147 return (line); 148 } 149 150 #ifdef INET6 151 static char ntop_buf[INET6_ADDRSTRLEN]; 152 153 static char * 154 inet6name(struct in6_addr *in6p) 155 { 156 char *cp; 157 static char line[50]; 158 struct hostent *hp; 159 static char domain[MAXHOSTNAMELEN]; 160 static int first = 1; 161 162 if (first && !numeric_addr) { 163 first = 0; 164 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 165 (cp = strchr(domain, '.'))) 166 (void) strcpy(domain, cp + 1); 167 else 168 domain[0] = 0; 169 } 170 cp = 0; 171 if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 172 hp = gethostbyaddr((char *)in6p, sizeof(*in6p), AF_INET6); 173 if (hp) { 174 if ((cp = strchr(hp->h_name, '.')) && 175 !strcmp(cp + 1, domain)) 176 *cp = 0; 177 cp = hp->h_name; 178 } 179 } 180 if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 181 strcpy(line, "*"); 182 else if (cp) 183 strcpy(line, cp); 184 else 185 sprintf(line, "%s", 186 inet_ntop(AF_INET6, (void *)in6p, ntop_buf, 187 sizeof(ntop_buf))); 188 return (line); 189 } 190 #endif 191 192 static void 193 sctp_print_address(union sctp_sockstore *address, int port, int num_port) 194 { 195 struct servent *sp = 0; 196 char line[80], *cp; 197 int width; 198 199 switch (address->sa.sa_family) { 200 case AF_INET: 201 sprintf(line, "%.*s.", Wflag ? 39 : 16, inetname(&address->sin.sin_addr)); 202 break; 203 #ifdef INET6 204 case AF_INET6: 205 sprintf(line, "%.*s.", Wflag ? 39 : 16, inet6name(&address->sin6.sin6_addr)); 206 break; 207 #endif 208 default: 209 sprintf(line, "%.*s.", Wflag ? 39 : 16, ""); 210 break; 211 } 212 cp = strchr(line, '\0'); 213 if (!num_port && port) 214 sp = getservbyport((int)port, "sctp"); 215 if (sp || port == 0) 216 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 217 else 218 sprintf(cp, "%d ", ntohs((u_short)port)); 219 width = Wflag ? 45 : 22; 220 printf("%-*.*s ", width, width, line); 221 } 222 223 static int 224 sctp_skip_xinpcb_ifneed(char *buf, const size_t buflen, size_t *offset) 225 { 226 int exist_tcb = 0; 227 struct xsctp_tcb *xstcb; 228 struct xsctp_raddr *xraddr; 229 struct xsctp_laddr *xladdr; 230 231 while (*offset < buflen) { 232 xladdr = (struct xsctp_laddr *)(buf + *offset); 233 *offset += sizeof(struct xsctp_laddr); 234 if (xladdr->last == 1) 235 break; 236 } 237 238 while (*offset < buflen) { 239 xstcb = (struct xsctp_tcb *)(buf + *offset); 240 *offset += sizeof(struct xsctp_tcb); 241 if (xstcb->last == 1) 242 break; 243 244 exist_tcb = 1; 245 246 while (*offset < buflen) { 247 xladdr = (struct xsctp_laddr *)(buf + *offset); 248 *offset += sizeof(struct xsctp_laddr); 249 if (xladdr->last == 1) 250 break; 251 } 252 253 while (*offset < buflen) { 254 xraddr = (struct xsctp_raddr *)(buf + *offset); 255 *offset += sizeof(struct xsctp_raddr); 256 if (xraddr->last == 1) 257 break; 258 } 259 } 260 261 /* 262 * If Lflag is set, we don't care about the return value. 263 */ 264 if (Lflag) 265 return 0; 266 267 return exist_tcb; 268 } 269 270 static void 271 sctp_process_tcb(struct xsctp_tcb *xstcb, 272 char *buf, const size_t buflen, size_t *offset, int *indent) 273 { 274 int i, xl_total = 0, xr_total = 0, x_max; 275 struct xsctp_raddr *xraddr; 276 struct xsctp_laddr *xladdr; 277 struct xladdr_entry *prev_xl = NULL, *xl = NULL, *xl_tmp; 278 struct xraddr_entry *prev_xr = NULL, *xr = NULL, *xr_tmp; 279 280 LIST_INIT(&xladdr_head); 281 LIST_INIT(&xraddr_head); 282 283 /* 284 * Make `struct xladdr_list' list and `struct xraddr_list' list 285 * to handle the address flexibly. 286 */ 287 while (*offset < buflen) { 288 xladdr = (struct xsctp_laddr *)(buf + *offset); 289 *offset += sizeof(struct xsctp_laddr); 290 if (xladdr->last == 1) 291 break; 292 293 prev_xl = xl; 294 xl = malloc(sizeof(struct xladdr_entry)); 295 if (xl == NULL) { 296 warnx("malloc %lu bytes", 297 (u_long)sizeof(struct xladdr_entry)); 298 goto out; 299 } 300 xl->xladdr = xladdr; 301 if (prev_xl == NULL) 302 LIST_INSERT_HEAD(&xladdr_head, xl, xladdr_entries); 303 else 304 LIST_INSERT_AFTER(prev_xl, xl, xladdr_entries); 305 xl_total++; 306 } 307 308 while (*offset < buflen) { 309 xraddr = (struct xsctp_raddr *)(buf + *offset); 310 *offset += sizeof(struct xsctp_raddr); 311 if (xraddr->last == 1) 312 break; 313 314 prev_xr = xr; 315 xr = malloc(sizeof(struct xraddr_entry)); 316 if (xr == NULL) { 317 warnx("malloc %lu bytes", 318 (u_long)sizeof(struct xraddr_entry)); 319 goto out; 320 } 321 xr->xraddr = xraddr; 322 if (prev_xr == NULL) 323 LIST_INSERT_HEAD(&xraddr_head, xr, xraddr_entries); 324 else 325 LIST_INSERT_AFTER(prev_xr, xr, xraddr_entries); 326 xr_total++; 327 } 328 329 /* 330 * Let's print the address infos. 331 */ 332 xl = LIST_FIRST(&xladdr_head); 333 xr = LIST_FIRST(&xraddr_head); 334 x_max = (xl_total > xr_total) ? xl_total : xr_total; 335 for (i = 0; i < x_max; i++) { 336 if (((*indent == 0) && i > 0) || *indent > 0) 337 printf("%-12s ", " "); 338 339 if (xl != NULL) { 340 sctp_print_address(&(xl->xladdr->address), 341 htons(xstcb->local_port), numeric_port); 342 } else { 343 if (Wflag) { 344 printf("%-45s ", " "); 345 } else { 346 printf("%-22s ", " "); 347 } 348 } 349 350 if (xr != NULL && !Lflag) { 351 sctp_print_address(&(xr->xraddr->address), 352 htons(xstcb->remote_port), numeric_port); 353 } 354 355 if (xl != NULL) 356 xl = LIST_NEXT(xl, xladdr_entries); 357 if (xr != NULL) 358 xr = LIST_NEXT(xr, xraddr_entries); 359 360 if (i == 0 && !Lflag) 361 sctp_statesprint(xstcb->state); 362 363 if (i < x_max) 364 putchar('\n'); 365 } 366 367 out: 368 /* 369 * Free the list which be used to handle the address. 370 */ 371 xl = LIST_FIRST(&xladdr_head); 372 while (xl != NULL) { 373 xl_tmp = LIST_NEXT(xl, xladdr_entries); 374 free(xl); 375 xl = xl_tmp; 376 } 377 378 xr = LIST_FIRST(&xraddr_head); 379 while (xr != NULL) { 380 xr_tmp = LIST_NEXT(xr, xraddr_entries); 381 free(xr); 382 xr = xr_tmp; 383 } 384 } 385 386 static void 387 sctp_process_inpcb(struct xsctp_inpcb *xinpcb, 388 char *buf, const size_t buflen, size_t *offset) 389 { 390 int indent = 0, xladdr_total = 0, is_listening = 0; 391 static int first = 1; 392 char *tname, *pname; 393 struct xsctp_tcb *xstcb; 394 struct xsctp_laddr *xladdr; 395 size_t offset_laddr; 396 int process_closed; 397 398 if (xinpcb->maxqlen > 0) 399 is_listening = 1; 400 401 if (first) { 402 if (!Lflag) { 403 printf("Active SCTP associations"); 404 if (aflag) 405 printf(" (including servers)"); 406 } else 407 printf("Current listen queue sizes (qlen/maxqlen)"); 408 putchar('\n'); 409 if (Lflag) 410 printf("%-6.6s %-5.5s %-8.8s %-22.22s\n", 411 "Proto", "Type", "Listen", "Local Address"); 412 else 413 if (Wflag) 414 printf("%-6.6s %-5.5s %-45.45s %-45.45s %s\n", 415 "Proto", "Type", 416 "Local Address", "Foreign Address", 417 "(state)"); 418 else 419 printf("%-6.6s %-5.5s %-22.22s %-22.22s %s\n", 420 "Proto", "Type", 421 "Local Address", "Foreign Address", 422 "(state)"); 423 first = 0; 424 } 425 xladdr = (struct xsctp_laddr *)(buf + *offset); 426 if (Lflag && !is_listening) { 427 sctp_skip_xinpcb_ifneed(buf, buflen, offset); 428 return; 429 } 430 431 if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { 432 /* Can't distinguish between sctp46 and sctp6 */ 433 pname = "sctp46"; 434 } else { 435 pname = "sctp4"; 436 } 437 438 if (xinpcb->flags & SCTP_PCB_FLAGS_TCPTYPE) 439 tname = "1to1"; 440 else if (xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) 441 tname = "1toN"; 442 else 443 tname = "????"; 444 445 if (Lflag) { 446 char buf1[9]; 447 448 snprintf(buf1, 9, "%hu/%hu", xinpcb->qlen, xinpcb->maxqlen); 449 printf("%-6.6s %-5.5s ", pname, tname); 450 printf("%-8.8s ", buf1); 451 } 452 453 offset_laddr = *offset; 454 process_closed = 0; 455 retry: 456 while (*offset < buflen) { 457 xladdr = (struct xsctp_laddr *)(buf + *offset); 458 *offset += sizeof(struct xsctp_laddr); 459 if (xladdr->last) { 460 if (aflag && !Lflag && (xladdr_total == 0) && process_closed) { 461 printf("%-6.6s %-5.5s ", pname, tname); 462 if (Wflag) { 463 printf("%-91.91s CLOSED", " "); 464 } else { 465 printf("%-45.45s CLOSED", " "); 466 } 467 } 468 if (process_closed || is_listening) { 469 putchar('\n'); 470 } 471 break; 472 } 473 474 if (!Lflag && !is_listening && !process_closed) 475 continue; 476 477 if (xladdr_total == 0) { 478 printf("%-6.6s %-5.5s ", pname, tname); 479 } else { 480 putchar('\n'); 481 printf((Lflag) ? 482 "%-21.21s " : "%-12.12s ", " "); 483 } 484 sctp_print_address(&(xladdr->address), 485 htons(xinpcb->local_port), numeric_port); 486 if (aflag && !Lflag && xladdr_total == 0) { 487 if (Wflag) { 488 if (process_closed) { 489 printf("%-45.45s CLOSED", " "); 490 } else { 491 printf("%-45.45s LISTEN", " "); 492 } 493 } else { 494 if (process_closed) { 495 printf("%-22.22s CLOSED", " "); 496 } else { 497 printf("%-22.22s LISTEN", " "); 498 } 499 } 500 } 501 xladdr_total++; 502 } 503 504 xstcb = (struct xsctp_tcb *)(buf + *offset); 505 *offset += sizeof(struct xsctp_tcb); 506 if (aflag && (xladdr_total == 0) && xstcb->last && !process_closed) { 507 process_closed = 1; 508 *offset = offset_laddr; 509 goto retry; 510 } 511 while (xstcb->last == 0 && *offset < buflen) { 512 printf("%-6.6s %-5.5s ", pname, tname); 513 sctp_process_tcb(xstcb, buf, buflen, offset, &indent); 514 indent++; 515 xstcb = (struct xsctp_tcb *)(buf + *offset); 516 *offset += sizeof(struct xsctp_tcb); 517 } 518 } 519 520 /* 521 * Print a summary of SCTP connections related to an Internet 522 * protocol. 523 */ 524 void 525 sctp_protopr(u_long off __unused, 526 const char *name, int af1, int proto) 527 { 528 char *buf; 529 const char *mibvar = "net.inet.sctp.assoclist"; 530 size_t offset = 0; 531 size_t len = 0; 532 struct xsctp_inpcb *xinpcb; 533 534 if (proto != IPPROTO_SCTP) 535 return; 536 537 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 538 if (errno != ENOENT) 539 warn("sysctl: %s", mibvar); 540 return; 541 } 542 if ((buf = malloc(len)) == 0) { 543 warnx("malloc %lu bytes", (u_long)len); 544 return; 545 } 546 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 547 warn("sysctl: %s", mibvar); 548 free(buf); 549 return; 550 } 551 552 xinpcb = (struct xsctp_inpcb *)(buf + offset); 553 offset += sizeof(struct xsctp_inpcb); 554 while (xinpcb->last == 0 && offset < len) { 555 sctp_process_inpcb(xinpcb, buf, (const size_t)len, 556 &offset); 557 558 xinpcb = (struct xsctp_inpcb *)(buf + offset); 559 offset += sizeof(struct xsctp_inpcb); 560 } 561 562 free(buf); 563 } 564 565 static void 566 sctp_statesprint(uint32_t state) 567 { 568 int idx; 569 570 switch (state) { 571 case SCTP_STATE_COOKIE_WAIT: 572 idx = NETSTAT_SCTP_STATES_COOKIE_WAIT; 573 break; 574 case SCTP_STATE_COOKIE_ECHOED: 575 idx = NETSTAT_SCTP_STATES_COOKIE_ECHOED; 576 break; 577 case SCTP_STATE_OPEN: 578 idx = NETSTAT_SCTP_STATES_ESTABLISHED; 579 break; 580 case SCTP_STATE_SHUTDOWN_SENT: 581 idx = NETSTAT_SCTP_STATES_SHUTDOWN_SENT; 582 break; 583 case SCTP_STATE_SHUTDOWN_RECEIVED: 584 idx = NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED; 585 break; 586 case SCTP_STATE_SHUTDOWN_ACK_SENT: 587 idx = NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT; 588 break; 589 case SCTP_STATE_SHUTDOWN_PENDING: 590 idx = NETSTAT_SCTP_STATES_SHUTDOWN_PENDING; 591 break; 592 default: 593 printf("UNKNOWN 0x%08x", state); 594 return; 595 } 596 597 printf("%s", sctpstates[idx]); 598 } 599 600 /* 601 * Dump SCTP statistics structure. 602 */ 603 void 604 sctp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 605 { 606 struct sctpstat sctpstat, zerostat; 607 size_t len = sizeof(sctpstat); 608 609 if (live) { 610 if (zflag) 611 memset(&zerostat, 0, len); 612 if (sysctlbyname("net.inet.sctp.stats", &sctpstat, &len, 613 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 614 warn("sysctl: net.inet.sctp.stats"); 615 return; 616 } 617 } else 618 kread(off, &sctpstat, len); 619 620 printf ("%s:\n", name); 621 622 #define p(f, m) if (sctpstat.f || sflag <= 1) \ 623 printf(m, (uintmax_t)sctpstat.f, plural(sctpstat.f)) 624 #define p1a(f, m) if (sctpstat.f || sflag <= 1) \ 625 printf(m, (uintmax_t)sctpstat.f) 626 627 /* 628 * input statistics 629 */ 630 p(sctps_recvpackets, "\t%ju input packet%s\n"); 631 p(sctps_recvdatagrams, "\t\t%ju datagram%s\n"); 632 p(sctps_recvpktwithdata, "\t\t%ju packet%s that had data\n"); 633 p(sctps_recvsacks, "\t\t%ju input SACK chunk%s\n"); 634 p(sctps_recvdata, "\t\t%ju input DATA chunk%s\n"); 635 p(sctps_recvdupdata, "\t\t%ju duplicate DATA chunk%s\n"); 636 p(sctps_recvheartbeat, "\t\t%ju input HB chunk%s\n"); 637 p(sctps_recvheartbeatack, "\t\t%ju HB-ACK chunk%s\n"); 638 p(sctps_recvecne, "\t\t%ju input ECNE chunk%s\n"); 639 p(sctps_recvauth, "\t\t%ju input AUTH chunk%s\n"); 640 p(sctps_recvauthmissing, "\t\t%ju chunk%s missing AUTH\n"); 641 p(sctps_recvivalhmacid, "\t\t%ju invalid HMAC id%s received\n"); 642 p(sctps_recvivalkeyid, "\t\t%ju invalid secret id%s received\n"); 643 p1a(sctps_recvauthfailed, "\t\t%ju auth failed\n"); 644 p1a(sctps_recvexpress, "\t\t%ju fast path receives all one chunk\n"); 645 p1a(sctps_recvexpressm, "\t\t%ju fast path multi-part data\n"); 646 647 /* 648 * output statistics 649 */ 650 p(sctps_sendpackets, "\t%ju output packet%s\n"); 651 p(sctps_sendsacks, "\t\t%ju output SACK%s\n"); 652 p(sctps_senddata, "\t\t%ju output DATA chunk%s\n"); 653 p(sctps_sendretransdata, "\t\t%ju retransmitted DATA chunk%s\n"); 654 p(sctps_sendfastretrans, "\t\t%ju fast retransmitted DATA chunk%s\n"); 655 p(sctps_sendmultfastretrans, "\t\t%ju FR'%s that happened more " 656 "than once to same chunk\n"); 657 p(sctps_sendheartbeat, "\t\t%ju output HB chunk%s\n"); 658 p(sctps_sendecne, "\t\t%ju output ECNE chunk%s\n"); 659 p(sctps_sendauth, "\t\t%ju output AUTH chunk%s\n"); 660 p1a(sctps_senderrors, "\t\t%ju ip_output error counter\n"); 661 662 /* 663 * PCKDROPREP statistics 664 */ 665 printf("\tPacket drop statistics:\n"); 666 p1a(sctps_pdrpfmbox, "\t\t%ju from middle box\n"); 667 p1a(sctps_pdrpfehos, "\t\t%ju from end host\n"); 668 p1a(sctps_pdrpmbda, "\t\t%ju with data\n"); 669 p1a(sctps_pdrpmbct, "\t\t%ju non-data, non-endhost\n"); 670 p1a(sctps_pdrpbwrpt, "\t\t%ju non-endhost, bandwidth rep only\n"); 671 p1a(sctps_pdrpcrupt, "\t\t%ju not enough for chunk header\n"); 672 p1a(sctps_pdrpnedat, "\t\t%ju not enough data to confirm\n"); 673 p1a(sctps_pdrppdbrk, "\t\t%ju where process_chunk_drop said break\n"); 674 p1a(sctps_pdrptsnnf, "\t\t%ju failed to find TSN\n"); 675 p1a(sctps_pdrpdnfnd, "\t\t%ju attempt reverse TSN lookup\n"); 676 p1a(sctps_pdrpdiwnp, "\t\t%ju e-host confirms zero-rwnd\n"); 677 p1a(sctps_pdrpdizrw, "\t\t%ju midbox confirms no space\n"); 678 p1a(sctps_pdrpbadd, "\t\t%ju data did not match TSN\n"); 679 p(sctps_pdrpmark, "\t\t%ju TSN'%s marked for Fast Retran\n"); 680 681 /* 682 * Timeouts 683 */ 684 printf("\tTimeouts:\n"); 685 p(sctps_timoiterator, "\t\t%ju iterator timer%s fired\n"); 686 p(sctps_timodata, "\t\t%ju T3 data time out%s\n"); 687 p(sctps_timowindowprobe, "\t\t%ju window probe (T3) timer%s fired\n"); 688 p(sctps_timoinit, "\t\t%ju INIT timer%s fired\n"); 689 p(sctps_timosack, "\t\t%ju sack timer%s fired\n"); 690 p(sctps_timoshutdown, "\t\t%ju shutdown timer%s fired\n"); 691 p(sctps_timoheartbeat, "\t\t%ju heartbeat timer%s fired\n"); 692 p1a(sctps_timocookie, "\t\t%ju a cookie timeout fired\n"); 693 p1a(sctps_timosecret, "\t\t%ju an endpoint changed its cookie" 694 "secret\n"); 695 p(sctps_timopathmtu, "\t\t%ju PMTU timer%s fired\n"); 696 p(sctps_timoshutdownack, "\t\t%ju shutdown ack timer%s fired\n"); 697 p(sctps_timoshutdownguard, "\t\t%ju shutdown guard timer%s fired\n"); 698 p(sctps_timostrmrst, "\t\t%ju stream reset timer%s fired\n"); 699 p(sctps_timoearlyfr, "\t\t%ju early FR timer%s fired\n"); 700 p1a(sctps_timoasconf, "\t\t%ju an asconf timer fired\n"); 701 p1a(sctps_timoautoclose, "\t\t%ju auto close timer fired\n"); 702 p(sctps_timoassockill, "\t\t%ju asoc free timer%s expired\n"); 703 p(sctps_timoinpkill, "\t\t%ju inp free timer%s expired\n"); 704 705 #if 0 706 /* 707 * Early fast retransmission counters 708 */ 709 p(sctps_earlyfrstart, "\t%ju TODO:sctps_earlyfrstart\n"); 710 p(sctps_earlyfrstop, "\t%ju TODO:sctps_earlyfrstop\n"); 711 p(sctps_earlyfrmrkretrans, "\t%ju TODO:sctps_earlyfrmrkretrans\n"); 712 p(sctps_earlyfrstpout, "\t%ju TODO:sctps_earlyfrstpout\n"); 713 p(sctps_earlyfrstpidsck1, "\t%ju TODO:sctps_earlyfrstpidsck1\n"); 714 p(sctps_earlyfrstpidsck2, "\t%ju TODO:sctps_earlyfrstpidsck2\n"); 715 p(sctps_earlyfrstpidsck3, "\t%ju TODO:sctps_earlyfrstpidsck3\n"); 716 p(sctps_earlyfrstpidsck4, "\t%ju TODO:sctps_earlyfrstpidsck4\n"); 717 p(sctps_earlyfrstrid, "\t%ju TODO:sctps_earlyfrstrid\n"); 718 p(sctps_earlyfrstrout, "\t%ju TODO:sctps_earlyfrstrout\n"); 719 p(sctps_earlyfrstrtmr, "\t%ju TODO:sctps_earlyfrstrtmr\n"); 720 #endif 721 722 /* 723 * Others 724 */ 725 p1a(sctps_hdrops, "\t%ju packet shorter than header\n"); 726 p1a(sctps_badsum, "\t%ju checksum error\n"); 727 p1a(sctps_noport, "\t%ju no endpoint for port\n"); 728 p1a(sctps_badvtag, "\t%ju bad v-tag\n"); 729 p1a(sctps_badsid, "\t%ju bad SID\n"); 730 p1a(sctps_nomem, "\t%ju no memory\n"); 731 p1a(sctps_fastretransinrtt, "\t%ju number of multiple FR in a RTT " 732 "window\n"); 733 #if 0 734 p(sctps_markedretrans, "\t%ju TODO:sctps_markedretrans\n"); 735 #endif 736 p1a(sctps_naglesent, "\t%ju RFC813 allowed sending\n"); 737 p1a(sctps_naglequeued, "\t%ju RFC813 does not allow sending\n"); 738 p1a(sctps_maxburstqueued, "\t%ju times max burst prohibited sending\n"); 739 p1a(sctps_ifnomemqueued, "\t%ju look ahead tells us no memory in " 740 "interface\n"); 741 p(sctps_windowprobed, "\t%ju number%s of window probes sent\n"); 742 p(sctps_lowlevelerr, "\t%ju time%s an output error to clamp " 743 "down on next user send\n"); 744 p(sctps_lowlevelerrusr, "\t%ju time%s sctp_senderrors were " 745 "caused from a user\n"); 746 p(sctps_datadropchklmt, "\t%ju number of in data drop%s due to " 747 "chunk limit reached\n"); 748 p(sctps_datadroprwnd, "\t%ju number of in data drop%s due to rwnd " 749 "limit reached\n"); 750 p(sctps_ecnereducedcwnd, "\t%ju time%s a ECN reduced " 751 "the cwnd\n"); 752 p1a(sctps_vtagexpress, "\t%ju used express lookup via vtag\n"); 753 p1a(sctps_vtagbogus, "\t%ju collision in express lookup\n"); 754 p(sctps_primary_randry, "\t%ju time%s the sender ran dry " 755 "of user data on primary\n"); 756 p1a(sctps_cmt_randry, "\t%ju same for above\n"); 757 p(sctps_slowpath_sack, "\t%ju sack%s the slow way\n"); 758 p(sctps_wu_sacks_sent, "\t%ju window update only sack%s sent\n"); 759 p(sctps_sends_with_flags, "\t%ju send%s with sinfo_flags !=0\n"); 760 p(sctps_sends_with_unord, "\t%ju unordered send%s\n"); 761 p(sctps_sends_with_eof, "\t%ju send%s with EOF flag set\n"); 762 p(sctps_sends_with_abort, "\t%ju send%s with ABORT flag set\n"); 763 p(sctps_protocol_drain_calls, "\t%ju time%s protocol drain called\n"); 764 p(sctps_protocol_drains_done, "\t%ju time%s we did a protocol " 765 "drain\n"); 766 p(sctps_read_peeks, "\t%ju time%s recv was called with peek\n"); 767 p(sctps_cached_chk, "\t%ju cached chunk%s used\n"); 768 p1a(sctps_cached_strmoq, "\t%ju cached stream oq's used\n"); 769 p(sctps_left_abandon, "\t%ju unread message%s abandonded by close\n"); 770 p1a(sctps_send_burst_avoid, "\t%ju send burst avoidance, already " 771 "max burst inflight to net\n"); 772 p1a(sctps_send_cwnd_avoid, "\t%ju send cwnd full avoidance, already " 773 "max burst inflight to net\n"); 774 p(sctps_fwdtsn_map_over, "\t%ju number of map array over-run%s via " 775 "fwd-tsn's\n"); 776 777 #undef p 778 #undef p1a 779 } 780 781 #endif /* SCTP */ 782