usr.bin/netstat/sctp.c

   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
  36 static char sccsid[] = "@(#)sctp.c      0.1 (Berkeley) 4/18/2007";
  37 #endif /* not lint */
  38 #endif
  39
  40 #include <sys/cdefs.h>
  41 __FBSDID("$FreeBSD$");
  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
  71 static 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
  84 static 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
  97 static LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head;
  98 struct xladdr_entry {
  99         struct xsctp_laddr *xladdr;
 100         LIST_ENTRY(xladdr_entry) xladdr_entries;
 101 };
 102
 103 static LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head;
 104 struct xraddr_entry {
 105         struct xsctp_raddr *xraddr;
 106         LIST_ENTRY(xraddr_entry) xraddr_entries;
 107 };
 108
 109 static void
 110 sctp_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
 161 static int
 162 sctp_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
 208 static void
 209 sctp_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
 309 out:
 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
 328 static void
 329 sctp_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");
 407 retry:
 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  */
 495 void
 496 sctp_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
 536 static void
 537 sctp_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  */
 583 void
 584 sctp_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 */