usr.bin/netstat/sctp.c

   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 <stdbool.h>
  62 #include <string.h>
  63 #include <unistd.h>
  64 #include "netstat.h"
  65 #include <libxo/xo.h>
  66
  67 #ifdef SCTP
  68
  69 static 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
  82 static 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
  95 static LIST_HEAD(xladdr_list, xladdr_entry) xladdr_head;
  96 struct xladdr_entry {
  97         struct xsctp_laddr *xladdr;
  98         LIST_ENTRY(xladdr_entry) xladdr_entries;
  99 };
 100
 101 static LIST_HEAD(xraddr_list, xraddr_entry) xraddr_head;
 102 struct xraddr_entry {
 103         struct xsctp_raddr *xraddr;
 104         LIST_ENTRY(xraddr_entry) xraddr_entries;
 105 };
 106
 107 static void
 108 sctp_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
 159 static int
 160 sctp_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
 206 static void
 207 sctp_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
 307 out:
 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
 326 static void
 327 sctp_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");
 405 retry:
 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  */
 493 void
 494 sctp_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
 534 static void
 535 sctp_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  */
 581 void
 582 sctp_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 */