usr.bin/netstat/inet.c

   1 /*-
   2  * Copyright (c) 1983, 1988, 1993, 1995
   3  *      The Regents of the University of California.  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
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #if 0
  31 #ifndef lint
  32 static char sccsid[] = "@(#)inet.c      8.5 (Berkeley) 5/24/95";
  33 #endif /* not lint */
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD$");
  38
  39 #include <sys/param.h>
  40 #include <sys/queue.h>
  41 #include <sys/domain.h>
  42 #include <sys/protosw.h>
  43 #include <sys/socket.h>
  44 #include <sys/socketvar.h>
  45 #include <sys/sysctl.h>
  46
  47 #include <net/route.h>
  48 #include <net/if_arp.h>
  49 #include <netinet/in.h>
  50 #include <netinet/in_systm.h>
  51 #include <netinet/ip.h>
  52 #include <netinet/ip_carp.h>
  53 #ifdef INET6
  54 #include <netinet/ip6.h>
  55 #endif /* INET6 */
  56 #include <netinet/in_pcb.h>
  57 #include <netinet/ip_icmp.h>
  58 #include <netinet/icmp_var.h>
  59 #include <netinet/igmp_var.h>
  60 #include <netinet/ip_var.h>
  61 #include <netinet/pim_var.h>
  62 #include <netinet/tcp.h>
  63 #include <netinet/tcpip.h>
  64 #include <netinet/tcp_seq.h>
  65 #define TCPSTATES
  66 #include <netinet/tcp_fsm.h>
  67 #include <netinet/tcp_timer.h>
  68 #include <netinet/tcp_var.h>
  69 #include <netinet/udp.h>
  70 #include <netinet/udp_var.h>
  71
  72 #include <arpa/inet.h>
  73 #include <err.h>
  74 #include <errno.h>
  75 #include <libutil.h>
  76 #include <netdb.h>
  77 #include <stdint.h>
  78 #include <stdio.h>
  79 #include <stdlib.h>
  80 #include <stdbool.h>
  81 #include <string.h>
  82 #include <unistd.h>
  83 #include <libxo/xo.h>
  84 #include "netstat.h"
  85 #include "nl_defs.h"
  86
  87 void    inetprint(const char *, struct in_addr *, int, const char *, int,
  88     const int);
  89 #ifdef INET6
  90 static int udp_done, tcp_done, sdp_done;
  91 #endif /* INET6 */
  92
  93 static int
  94 pcblist_sysctl(int proto, const char *name, char **bufp)
  95 {
  96         const char *mibvar;
  97         char *buf;
  98         size_t len;
  99
 100         switch (proto) {
 101         case IPPROTO_TCP:
 102                 mibvar = "net.inet.tcp.pcblist";
 103                 break;
 104         case IPPROTO_UDP:
 105                 mibvar = "net.inet.udp.pcblist";
 106                 break;
 107         case IPPROTO_DIVERT:
 108                 mibvar = "net.inet.divert.pcblist";
 109                 break;
 110         default:
 111                 mibvar = "net.inet.raw.pcblist";
 112                 break;
 113         }
 114         if (strncmp(name, "sdp", 3) == 0)
 115                 mibvar = "net.inet.sdp.pcblist";
 116         len = 0;
 117         if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
 118                 if (errno != ENOENT)
 119                         xo_warn("sysctl: %s", mibvar);
 120                 return (0);
 121         }
 122         if ((buf = malloc(len)) == NULL) {
 123                 xo_warnx("malloc %lu bytes", (u_long)len);
 124                 return (0);
 125         }
 126         if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
 127                 xo_warn("sysctl: %s", mibvar);
 128                 free(buf);
 129                 return (0);
 130         }
 131         *bufp = buf;
 132         return (1);
 133 }
 134
 135 /*
 136  * Copied directly from uipc_socket2.c.  We leave out some fields that are in
 137  * nested structures that aren't used to avoid extra work.
 138  */
 139 static void
 140 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
 141 {
 142         xsb->sb_cc = sb->sb_ccc;
 143         xsb->sb_hiwat = sb->sb_hiwat;
 144         xsb->sb_mbcnt = sb->sb_mbcnt;
 145         xsb->sb_mcnt = sb->sb_mcnt;
 146         xsb->sb_ccnt = sb->sb_ccnt;
 147         xsb->sb_mbmax = sb->sb_mbmax;
 148         xsb->sb_lowat = sb->sb_lowat;
 149         xsb->sb_flags = sb->sb_flags;
 150         xsb->sb_timeo = sb->sb_timeo;
 151 }
 152
 153 int
 154 sotoxsocket(struct socket *so, struct xsocket *xso)
 155 {
 156         struct protosw proto;
 157         struct domain domain;
 158
 159         bzero(xso, sizeof *xso);
 160         xso->xso_len = sizeof *xso;
 161         xso->xso_so = so;
 162         xso->so_type = so->so_type;
 163         xso->so_options = so->so_options;
 164         xso->so_linger = so->so_linger;
 165         xso->so_state = so->so_state;
 166         xso->so_pcb = so->so_pcb;
 167         if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
 168                 return (-1);
 169         xso->xso_protocol = proto.pr_protocol;
 170         if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
 171                 return (-1);
 172         xso->xso_family = domain.dom_family;
 173         xso->so_timeo = so->so_timeo;
 174         xso->so_error = so->so_error;
 175         if (SOLISTENING(so)) {
 176                 xso->so_qlen = so->sol_qlen;
 177                 xso->so_incqlen = so->sol_incqlen;
 178                 xso->so_qlimit = so->sol_qlimit;
 179         } else {
 180                 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
 181                 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
 182                 xso->so_oobmark = so->so_oobmark;
 183         }
 184         return (0);
 185 }
 186
 187 /*
 188  * Print a summary of connections related to an Internet
 189  * protocol.  For TCP, also give state of connection.
 190  * Listening processes (aflag) are suppressed unless the
 191  * -a (all) flag is specified.
 192  */
 193 void
 194 protopr(u_long off, const char *name, int af1, int proto)
 195 {
 196         static int first = 1;
 197         int istcp;
 198         char *buf;
 199         const char *vchar;
 200         struct xtcpcb *tp;
 201         struct xinpcb *inp;
 202         struct xinpgen *xig, *oxig;
 203         struct xsocket *so;
 204
 205         istcp = 0;
 206         switch (proto) {
 207         case IPPROTO_TCP:
 208 #ifdef INET6
 209                 if (strncmp(name, "sdp", 3) != 0) {
 210                         if (tcp_done != 0)
 211                                 return;
 212                         else
 213                                 tcp_done = 1;
 214                 } else {
 215                         if (sdp_done != 0)
 216                                 return;
 217                         else
 218                                 sdp_done = 1;
 219                 }
 220 #endif
 221                 istcp = 1;
 222                 break;
 223         case IPPROTO_UDP:
 224 #ifdef INET6
 225                 if (udp_done != 0)
 226                         return;
 227                 else
 228                         udp_done = 1;
 229 #endif
 230                 break;
 231         }
 232
 233         if (!pcblist_sysctl(proto, name, &buf))
 234                 return;
 235
 236         oxig = xig = (struct xinpgen *)buf;
 237         for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
 238             xig->xig_len > sizeof(struct xinpgen);
 239             xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
 240                 if (istcp) {
 241                         tp = (struct xtcpcb *)xig;
 242                         inp = &tp->xt_inp;
 243                 } else {
 244                         inp = (struct xinpcb *)xig;
 245                 }
 246                 so = &inp->xi_socket;
 247
 248                 /* Ignore sockets for protocols other than the desired one. */
 249                 if (so->xso_protocol != proto)
 250                         continue;
 251
 252                 /* Ignore PCBs which were freed during copyout. */
 253                 if (inp->inp_gencnt > oxig->xig_gen)
 254                         continue;
 255
 256                 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
 257 #ifdef INET6
 258                     || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
 259 #endif /* INET6 */
 260                     || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
 261 #ifdef INET6
 262                                           && (inp->inp_vflag & INP_IPV6) == 0
 263 #endif /* INET6 */
 264                         ))
 265                     )
 266                         continue;
 267                 if (!aflag &&
 268                     (
 269                      (istcp && tp->t_state == TCPS_LISTEN)
 270                      || (af1 == AF_INET &&
 271                       inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 272 #ifdef INET6
 273                      || (af1 == AF_INET6 &&
 274                          IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 275 #endif /* INET6 */
 276                      || (af1 == AF_UNSPEC &&
 277                          (((inp->inp_vflag & INP_IPV4) != 0 &&
 278                            inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 279 #ifdef INET6
 280                           || ((inp->inp_vflag & INP_IPV6) != 0 &&
 281                               IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 282 #endif
 283                           ))
 284                      ))
 285                         continue;
 286
 287                 if (first) {
 288                         if (!Lflag) {
 289                                 xo_emit("Active Internet connections");
 290                                 if (aflag)
 291                                         xo_emit(" (including servers)");
 292                         } else
 293                                 xo_emit(
 294         "Current listen queue sizes (qlen/incqlen/maxqlen)");
 295                         xo_emit("\n");
 296                         if (Aflag)
 297                                 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
 298                                     "Tcpcb");
 299                         if (Lflag)
 300                                 xo_emit((Aflag && !Wflag) ?
 301                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
 302                                     ((!Wflag || af1 == AF_INET) ?
 303                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
 304                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
 305                                     "Proto", "Listen", "Local Address");
 306                         else if (Tflag)
 307                                 xo_emit((Aflag && !Wflag) ?
 308     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
 309                                     ((!Wflag || af1 == AF_INET) ?
 310     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
 311     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
 312                                     "Proto", "Rexmit", "OOORcv", "0-win",
 313                                     "Local Address", "Foreign Address");
 314                         else {
 315                                 xo_emit((Aflag && !Wflag) ?
 316     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
 317                                     ((!Wflag || af1 == AF_INET) ?
 318     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
 319     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
 320                                     "Proto", "Recv-Q", "Send-Q",
 321                                     "Local Address", "Foreign Address");
 322                                 if (!xflag && !Rflag)
 323                                         xo_emit(" (state)");
 324                         }
 325                         if (xflag) {
 326                                 xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 327                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 328                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 329                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
 330                                     "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
 331                                     "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
 332                                     "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
 333                                 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
 334                                     "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
 335                                     "rexmt", "persist", "keep", "2msl",
 336                                     "delack", "rcvtime");
 337                         } else if (Rflag) {
 338                                 xo_emit("  {T:/%8.8s} {T:/%5.5s}",
 339                                     "flowid", "ftype");
 340                         }
 341                         xo_emit("\n");
 342                         first = 0;
 343                 }
 344                 if (Lflag && so->so_qlimit == 0)
 345                         continue;
 346                 xo_open_instance("socket");
 347                 if (Aflag) {
 348                         if (istcp)
 349                                 xo_emit("{q:address/%*lx} ",
 350                                     2 * (int)sizeof(void *),
 351                                     (u_long)inp->inp_ppcb);
 352                         else
 353                                 xo_emit("{q:address/%*lx} ",
 354                                     2 * (int)sizeof(void *),
 355                                     (u_long)so->so_pcb);
 356                 }
 357 #ifdef INET6
 358                 if ((inp->inp_vflag & INP_IPV6) != 0)
 359                         vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 360                             "46" : "6";
 361                 else
 362 #endif
 363                 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 364                     "4" : "";
 365                 if (istcp && (tp->t_flags & TF_TOE) != 0)
 366                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
 367                 else
 368                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
 369                 if (Lflag) {
 370                         char buf1[33];
 371
 372                         snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
 373                             so->so_incqlen, so->so_qlimit);
 374                         xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
 375                 } else if (Tflag) {
 376                         if (istcp)
 377                                 xo_emit("{:sent-retransmit-packets/%6u} "
 378                                     "{:received-out-of-order-packets/%6u} "
 379                                     "{:sent-zero-window/%6u} ",
 380                                     tp->t_sndrexmitpack, tp->t_rcvoopack,
 381                                     tp->t_sndzerowin);
 382                         else
 383                                 xo_emit("{P:/%21s}", "");
 384                 } else {
 385                         xo_emit("{:receive-bytes-waiting/%6u} "
 386                             "{:send-bytes-waiting/%6u} ",
 387                             so->so_rcv.sb_cc, so->so_snd.sb_cc);
 388                 }
 389                 if (numeric_port) {
 390                         if (inp->inp_vflag & INP_IPV4) {
 391                                 inetprint("local", &inp->inp_laddr,
 392                                     (int)inp->inp_lport, name, 1, af1);
 393                                 if (!Lflag)
 394                                         inetprint("remote", &inp->inp_faddr,
 395                                             (int)inp->inp_fport, name, 1, af1);
 396                         }
 397 #ifdef INET6
 398                         else if (inp->inp_vflag & INP_IPV6) {
 399                                 inet6print("local", &inp->in6p_laddr,
 400                                     (int)inp->inp_lport, name, 1);
 401                                 if (!Lflag)
 402                                         inet6print("remote", &inp->in6p_faddr,
 403                                             (int)inp->inp_fport, name, 1);
 404                         } /* else nothing printed now */
 405 #endif /* INET6 */
 406                 } else if (inp->inp_flags & INP_ANONPORT) {
 407                         if (inp->inp_vflag & INP_IPV4) {
 408                                 inetprint("local", &inp->inp_laddr,
 409                                     (int)inp->inp_lport, name, 1, af1);
 410                                 if (!Lflag)
 411                                         inetprint("remote", &inp->inp_faddr,
 412                                             (int)inp->inp_fport, name, 0, af1);
 413                         }
 414 #ifdef INET6
 415                         else if (inp->inp_vflag & INP_IPV6) {
 416                                 inet6print("local", &inp->in6p_laddr,
 417                                     (int)inp->inp_lport, name, 1);
 418                                 if (!Lflag)
 419                                         inet6print("remote", &inp->in6p_faddr,
 420                                             (int)inp->inp_fport, name, 0);
 421                         } /* else nothing printed now */
 422 #endif /* INET6 */
 423                 } else {
 424                         if (inp->inp_vflag & INP_IPV4) {
 425                                 inetprint("local", &inp->inp_laddr,
 426                                     (int)inp->inp_lport, name, 0, af1);
 427                                 if (!Lflag)
 428                                         inetprint("remote", &inp->inp_faddr,
 429                                             (int)inp->inp_fport, name,
 430                                             inp->inp_lport != inp->inp_fport,
 431                                             af1);
 432                         }
 433 #ifdef INET6
 434                         else if (inp->inp_vflag & INP_IPV6) {
 435                                 inet6print("local", &inp->in6p_laddr,
 436                                     (int)inp->inp_lport, name, 0);
 437                                 if (!Lflag)
 438                                         inet6print("remote", &inp->in6p_faddr,
 439                                             (int)inp->inp_fport, name,
 440                                             inp->inp_lport != inp->inp_fport);
 441                         } /* else nothing printed now */
 442 #endif /* INET6 */
 443                 }
 444                 if (xflag) {
 445                         xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
 446                             "{:receive-clusters/%6u} {:send-clusters/%6u} "
 447                             "{:receive-high-water/%6u} {:send-high-water/%6u} "
 448                             "{:receive-low-water/%6u} {:send-low-water/%6u} "
 449                             "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
 450                             "{:receive-mbuf-bytes-max/%6u} "
 451                             "{:send-mbuf-bytes-max/%6u}",
 452                             so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
 453                             so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
 454                             so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
 455                             so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
 456                             so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
 457                             so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
 458                         if (istcp)
 459                                 xo_emit(" {:retransmit-timer/%4d.%02d} "
 460                                     "{:persist-timer/%4d.%02d} "
 461                                     "{:keepalive-timer/%4d.%02d} "
 462                                     "{:msl2-timer/%4d.%02d} "
 463                                     "{:delay-ack-timer/%4d.%02d} "
 464                                     "{:inactivity-timer/%4d.%02d}",
 465                                     tp->tt_rexmt / 1000,
 466                                     (tp->tt_rexmt % 1000) / 10,
 467                                     tp->tt_persist / 1000,
 468                                     (tp->tt_persist % 1000) / 10,
 469                                     tp->tt_keep / 1000,
 470                                     (tp->tt_keep % 1000) / 10,
 471                                     tp->tt_2msl / 1000,
 472                                     (tp->tt_2msl % 1000) / 10,
 473                                     tp->tt_delack / 1000,
 474                                     (tp->tt_delack % 1000) / 10,
 475                                     tp->t_rcvtime / 1000,
 476                                     (tp->t_rcvtime % 1000) / 10);
 477                 }
 478                 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
 479                         if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
 480                                 xo_emit("{:tcp-state/%d}", tp->t_state);
 481                         else {
 482                                 xo_emit("{:tcp-state/%s}",
 483                                     tcpstates[tp->t_state]);
 484 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
 485                                 /* Show T/TCP `hidden state' */
 486                                 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
 487                                         xo_emit("{:need-syn-or-fin/*}");
 488 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
 489                         }
 490                 }
 491                 if (Rflag) {
 492                         /* XXX: is this right Alfred */
 493                         xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
 494                             inp->inp_flowid,
 495                             inp->inp_flowtype);
 496                 }
 497                 xo_emit("\n");
 498                 xo_close_instance("socket");
 499         }
 500         if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
 501                 if (oxig->xig_count > xig->xig_count) {
 502                         xo_emit("Some {d:lost/%s} sockets may have been "
 503                             "deleted.\n", name);
 504                 } else if (oxig->xig_count < xig->xig_count) {
 505                         xo_emit("Some {d:created/%s} sockets may have been "
 506                             "created.\n", name);
 507                 } else {
 508                         xo_emit("Some {d:changed/%s} sockets may have been "
 509                             "created or deleted.\n", name);
 510                 }
 511         }
 512         free(buf);
 513 }
 514
 515 /*
 516  * Dump TCP statistics structure.
 517  */
 518 void
 519 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 520 {
 521         struct tcpstat tcpstat;
 522         uint64_t tcps_states[TCP_NSTATES];
 523
 524 #ifdef INET6
 525         if (tcp_done != 0)
 526                 return;
 527         else
 528                 tcp_done = 1;
 529 #endif
 530
 531         if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
 532             sizeof(tcpstat), kread_counters) != 0)
 533                 return;
 534
 535         if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
 536             &tcps_states, sizeof(tcps_states), kread_counters) != 0)
 537                 return;
 538
 539         xo_open_container("tcp");
 540         xo_emit("{T:/%s}:\n", name);
 541
 542 #define p(f, m) if (tcpstat.f || sflag <= 1)                            \
 543         xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
 544 #define p1a(f, m) if (tcpstat.f || sflag <= 1)                          \
 545         xo_emit(m, (uintmax_t )tcpstat.f)
 546 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)       \
 547         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 548             (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
 549 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)      \
 550         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 551             (uintmax_t )tcpstat.f2)
 552 #define p3(f, m) if (tcpstat.f || sflag <= 1)                           \
 553         xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
 554
 555         p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
 556         p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
 557             "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
 558         p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
 559             "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
 560             "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
 561             "{N:retransmitted}\n");
 562         p(tcps_sndrexmitbad, "\t\t"
 563             "{:sent-unnecessary-retransmitted-packets/%ju} "
 564             "{N:/data packet%s unnecessarily retransmitted}\n");
 565         p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
 566             "{N:/resend%s initiated by MTU discovery}\n");
 567         p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
 568             "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
 569             "{N:delayed})\n");
 570         p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
 571             "{N:/URG only packet%s}\n");
 572         p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
 573             "{N:/window probe packet%s}\n");
 574         p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
 575             "{N:/window update packet%s}\n");
 576         p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
 577             "{N:/control packet%s}\n");
 578         p(tcps_rcvtotal, "\t{:received-packets/%ju} "
 579             "{N:/packet%s received}\n");
 580         p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
 581             "{:received-ack-packets/%ju} {N:/ack%s} "
 582             "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
 583         p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
 584             "{N:/duplicate ack%s}\n");
 585         p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
 586             "{N:/ack%s for unsent data}\n");
 587         p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
 588             "{:received-in-sequence-packets/%ju} {N:/packet%s} "
 589             "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
 590             "{N:received in-sequence}\n");
 591         p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
 592             "{:received-completely-duplicate-packets/%ju} "
 593             "{N:/completely duplicate packet%s} "
 594             "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
 595         p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
 596             "{N:/old duplicate packet%s}\n");
 597         p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
 598             "{:received-some-duplicate-packets/%ju} "
 599             "{N:/packet%s with some dup. data} "
 600             "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
 601         p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
 602             "{N:/out-of-order packet%s} "
 603             "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
 604         p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
 605             "{:received-after-window-packets/%ju} {N:/packet%s} "
 606             "({:received-after-window-bytes/%ju} {N:/byte%s}) "
 607             "{N:of data after window}\n");
 608         p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
 609             "{N:/window probe%s}\n");
 610         p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
 611             "{N:/window update packet%s}\n");
 612         p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
 613             "{N:/packet%s received after close}\n");
 614         p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
 615             "{N:/discarded for bad checksum%s}\n");
 616         p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
 617             "{N:/discarded for bad header offset field%s}\n");
 618         p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
 619             "{N:discarded because packet too short}\n");
 620         p1a(tcps_rcvmemdrop, "\t\t{:discard-memory-problems/%ju} "
 621             "{N:discarded due to memory problems}\n");
 622         p(tcps_connattempt, "\t{:connection-requests/%ju} "
 623             "{N:/connection request%s}\n");
 624         p(tcps_accepts, "\t{:connections-accepts/%ju} "
 625             "{N:/connection accept%s}\n");
 626         p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
 627             "{N:/bad connection attempt%s}\n");
 628         p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
 629             "{N:/listen queue overflow%s}\n");
 630         p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
 631             "{N:/ignored RSTs in the window%s}\n");
 632         p(tcps_connects, "\t{:connections-established/%ju} "
 633             "{N:/connection%s established (including accepts)}\n");
 634         p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
 635             "{N:/time%s used RTT from hostcache}\n");
 636         p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
 637             "{N:/time%s used RTT variance from hostcache}\n");
 638         p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
 639             "{N:/time%s used slow-start threshold from hostcache}\n");
 640         p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
 641             "{N:/connection%s closed (including} "
 642             "{:connection-drops/%ju} {N:/drop%s})\n");
 643         p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
 644             "{N:/connection%s updated cached RTT on close}\n");
 645         p(tcps_cachedrttvar, "\t\t"
 646             "{:connections-updated-variance-on-close/%ju} "
 647             "{N:/connection%s updated cached RTT variance on close}\n");
 648         p(tcps_cachedssthresh, "\t\t"
 649             "{:connections-updated-ssthresh-on-close/%ju} "
 650             "{N:/connection%s updated cached ssthresh on close}\n");
 651         p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
 652             "{N:/embryonic connection%s dropped}\n");
 653         p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
 654             "{N:/segment%s updated rtt (of} "
 655             "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
 656         p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
 657             "{N:/retransmit timeout%s}\n");
 658         p(tcps_timeoutdrop, "\t\t"
 659             "{:connections-dropped-by-retransmit-timeout/%ju} "
 660             "{N:/connection%s dropped by rexmit timeout}\n");
 661         p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
 662             "{N:/persist timeout%s}\n");
 663         p(tcps_persistdrop, "\t\t"
 664             "{:connections-dropped-by-persist-timeout/%ju} "
 665             "{N:/connection%s dropped by persist timeout}\n");
 666         p(tcps_finwait2_drops, "\t"
 667             "{:connections-dropped-by-finwait2-timeout/%ju} "
 668             "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
 669         p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
 670             "{N:/keepalive timeout%s}\n");
 671         p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
 672             "{N:/keepalive probe%s sent}\n");
 673         p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
 674             "{N:/connection%s dropped by keepalive}\n");
 675         p(tcps_predack, "\t{:ack-header-predictions/%ju} "
 676             "{N:/correct ACK header prediction%s}\n");
 677         p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
 678             "{N:/correct data packet header prediction%s}\n");
 679
 680         xo_open_container("syncache");
 681
 682         p3(tcps_sc_added, "\t{:entries-added/%ju} "
 683             "{N:/syncache entr%s added}\n");
 684         p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
 685             "{N:/retransmitted}\n");
 686         p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
 687         p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
 688         p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
 689         p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
 690             "{N:/bucket overflow}\n");
 691         p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
 692             "{N:/cache overflow}\n");
 693         p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
 694         p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
 695         p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
 696         p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
 697         p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
 698         p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
 699         p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
 700         p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
 701             "{N:/cookie%s received}\n");
 702
 703         xo_close_container("syncache");
 704
 705         xo_open_container("hostcache");
 706
 707         p3(tcps_hc_added, "\t{:entries-added/%ju} "
 708             "{N:/hostcache entr%s added}\n");
 709         p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
 710             "{N:/bucket overflow}\n");
 711
 712         xo_close_container("hostcache");
 713
 714         xo_open_container("sack");
 715
 716         p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
 717             "{N:/SACK recovery episode%s}\n");
 718         p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
 719             "{N:/segment rexmit%s in SACK recovery episodes}\n");
 720         p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
 721             "{N:/byte rexmit%s in SACK recovery episodes}\n");
 722         p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
 723             "{N:/SACK option%s (SACK blocks) received}\n");
 724         p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
 725             "{N:/SACK option%s (SACK blocks) sent}\n");
 726         p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
 727             "{N:/SACK scoreboard overflow}\n");
 728
 729         xo_close_container("sack");
 730         xo_open_container("ecn");
 731
 732         p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
 733             "{N:/packet%s with ECN CE bit set}\n");
 734         p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
 735             "{N:/packet%s with ECN ECT(0) bit set}\n");
 736         p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
 737             "{N:/packet%s with ECN ECT(1) bit set}\n");
 738         p(tcps_ecn_shs, "\t{:handshakes/%ju} "
 739             "{N:/successful ECN handshake%s}\n");
 740         p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
 741             "{N:/time%s ECN reduced the congestion window}\n");
 742
 743         xo_close_container("ecn");
 744         xo_open_container("tcp-signature");
 745         p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
 746             "{N:/packet%s with matching signature received}\n");
 747         p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
 748             "{N:/packet%s with bad signature received}\n");
 749         p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
 750             "{N:/time%s failed to make signature due to no SA}\n");
 751         p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
 752             "{N:/time%s unexpected signature received}\n");
 753         p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
 754             "{N:/time%s no signature provided by segment}\n");
 755
 756         xo_close_container("tcp-signature");
 757         xo_open_container("pmtud");
 758
 759         p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
 760             "{N:/Path MTU discovery black hole detection activation%s}\n");
 761         p(tcps_pmtud_blackhole_activated_min_mss,
 762             "\t{:pmtud-activated-min-mss/%ju} "
 763             "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
 764         p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
 765             "{N:/Path MTU discovery black hole detection failure%s}\n");
 766  #undef p
 767  #undef p1a
 768  #undef p2
 769  #undef p2a
 770  #undef p3
 771         xo_close_container("pmtud");
 772
 773
 774         xo_open_container("TCP connection count by state");
 775         xo_emit("{T:/TCP connection count by state}:\n");
 776         for (int i = 0; i < TCP_NSTATES; i++) {
 777                 /*
 778                  * XXXGL: is there a way in libxo to use %s
 779                  * in the "content string" of a format
 780                  * string? I failed to do that, that's why
 781                  * a temporary buffer is used to construct
 782                  * format string for xo_emit().
 783                  */
 784                 char fmtbuf[80];
 785
 786                 if (sflag > 1 && tcps_states[i] == 0)
 787                         continue;
 788                 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
 789                     "{Np:/connection ,connections} in %s state\n",
 790                     tcpstates[i], tcpstates[i]);
 791                 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
 792         }
 793         xo_close_container("TCP connection count by state");
 794
 795         xo_close_container("tcp");
 796 }
 797
 798 /*
 799  * Dump UDP statistics structure.
 800  */
 801 void
 802 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 803 {
 804         struct udpstat udpstat;
 805         uint64_t delivered;
 806
 807 #ifdef INET6
 808         if (udp_done != 0)
 809                 return;
 810         else
 811                 udp_done = 1;
 812 #endif
 813
 814         if (fetch_stats("net.inet.udp.stats", off, &udpstat,
 815             sizeof(udpstat), kread_counters) != 0)
 816                 return;
 817
 818         xo_open_container("udp");
 819         xo_emit("{T:/%s}:\n", name);
 820
 821 #define p(f, m) if (udpstat.f || sflag <= 1) \
 822         xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
 823 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
 824         xo_emit("\t" m, (uintmax_t)udpstat.f)
 825
 826         p(udps_ipackets, "{:received-datagrams/%ju} "
 827             "{N:/datagram%s received}\n");
 828         p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
 829             "{N:/with incomplete header}\n");
 830         p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
 831             "{N:/with bad data length field}\n");
 832         p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
 833             "{N:/with bad checksum}\n");
 834         p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
 835             "{N:/with no checksum}\n");
 836         p1a(udps_noport, "{:dropped-no-socket/%ju} "
 837             "{N:/dropped due to no socket}\n");
 838         p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
 839             "{N:/broadcast\\/multicast datagram%s undelivered}\n");
 840         p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
 841             "{N:/dropped due to full socket buffers}\n");
 842         p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
 843             "{N:/not for hashed pcb}\n");
 844         delivered = udpstat.udps_ipackets -
 845                     udpstat.udps_hdrops -
 846                     udpstat.udps_badlen -
 847                     udpstat.udps_badsum -
 848                     udpstat.udps_noport -
 849                     udpstat.udps_noportbcast -
 850                     udpstat.udps_fullsock;
 851         if (delivered || sflag <= 1)
 852                 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
 853                     (uint64_t)delivered);
 854         p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
 855         /* the next statistic is cumulative in udps_noportbcast */
 856         p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
 857             "{N:/time%s multicast source filter matched}\n");
 858 #undef p
 859 #undef p1a
 860         xo_close_container("udp");
 861 }
 862
 863 /*
 864  * Dump CARP statistics structure.
 865  */
 866 void
 867 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 868 {
 869         struct carpstats carpstat;
 870
 871         if (fetch_stats("net.inet.carp.stats", off, &carpstat,
 872             sizeof(carpstat), kread_counters) != 0)
 873                 return;
 874
 875         xo_open_container(name);
 876         xo_emit("{T:/%s}:\n", name);
 877
 878 #define p(f, m) if (carpstat.f || sflag <= 1) \
 879         xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
 880 #define p2(f, m) if (carpstat.f || sflag <= 1) \
 881         xo_emit(m, (uintmax_t)carpstat.f)
 882
 883         p(carps_ipackets, "\t{:received-inet-packets/%ju} "
 884             "{N:/packet%s received (IPv4)}\n");
 885         p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
 886             "{N:/packet%s received (IPv6)}\n");
 887         p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
 888             "{N:/packet%s discarded for wrong TTL}\n");
 889         p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
 890             "{N:/packet%s shorter than header}\n");
 891         p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
 892             "{N:/discarded for bad checksum%s}\n");
 893         p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
 894             "{N:/discarded packet%s with a bad version}\n");
 895         p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
 896             "{N:/discarded because packet too short}\n");
 897         p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
 898             "{N:/discarded for bad authentication}\n");
 899         p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
 900             "{N:/discarded for bad vhid}\n");
 901         p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
 902             "{N:/discarded because of a bad address list}\n");
 903         p(carps_opackets, "\t{:sent-inet-packets/%ju} "
 904             "{N:/packet%s sent (IPv4)}\n");
 905         p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
 906             "{N:/packet%s sent (IPv6)}\n");
 907         p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
 908             "{N:/send failed due to mbuf memory error}\n");
 909 #if notyet
 910         p(carps_ostates, "\t\t{:send-state-updates/%s} "
 911             "{N:/state update%s sent}\n");
 912 #endif
 913 #undef p
 914 #undef p2
 915         xo_close_container(name);
 916 }
 917
 918 /*
 919  * Dump IP statistics structure.
 920  */
 921 void
 922 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 923 {
 924         struct ipstat ipstat;
 925
 926         if (fetch_stats("net.inet.ip.stats", off, &ipstat,
 927             sizeof(ipstat), kread_counters) != 0)
 928                 return;
 929
 930         xo_open_container(name);
 931         xo_emit("{T:/%s}:\n", name);
 932
 933 #define p(f, m) if (ipstat.f || sflag <= 1) \
 934         xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
 935 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
 936         xo_emit(m, (uintmax_t )ipstat.f)
 937
 938         p(ips_total, "\t{:received-packets/%ju} "
 939             "{N:/total packet%s received}\n");
 940         p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
 941             "{N:/bad header checksum%s}\n");
 942         p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
 943             "{N:/with size smaller than minimum}\n");
 944         p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
 945             "{N:/with data size < data length}\n");
 946         p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
 947             "{N:/with ip length > max ip packet size}\n");
 948         p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
 949             "{N:/with header length < data size}\n");
 950         p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
 951             "{N:/with data length < header length}\n");
 952         p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
 953             "{N:/with bad options}\n");
 954         p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
 955             "{N:/with incorrect version number}\n");
 956         p(ips_fragments, "\t{:received-fragments/%ju} "
 957             "{N:/fragment%s received}\n");
 958         p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
 959             "{N:/fragment%s dropped (dup or out of space)}\n");
 960         p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
 961             "{N:/fragment%s dropped after timeout}\n");
 962         p(ips_reassembled, "\t{:reassembled-packets/%ju} "
 963             "{N:/packet%s reassembled ok}\n");
 964         p(ips_delivered, "\t{:received-local-packets/%ju} "
 965             "{N:/packet%s for this host}\n");
 966         p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
 967             "{N:/packet%s for unknown\\/unsupported protocol}\n");
 968         p(ips_forward, "\t{:forwarded-packets/%ju} "
 969             "{N:/packet%s forwarded}");
 970         p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
 971             "{N:/packet%s fast forwarded})");
 972         if (ipstat.ips_forward || sflag <= 1)
 973                 xo_emit("\n");
 974         p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
 975             "{N:/packet%s not forwardable}\n");
 976         p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
 977             "{N:/packet%s received for unknown multicast group}\n");
 978         p(ips_redirectsent, "\t{:redirects-sent/%ju} "
 979             "{N:/redirect%s sent}\n");
 980         p(ips_localout, "\t{:sent-packets/%ju} "
 981             "{N:/packet%s sent from this host}\n");
 982         p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
 983             "{N:/packet%s sent with fabricated ip header}\n");
 984         p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
 985             "{N:/output packet%s dropped due to no bufs, etc.}\n");
 986         p(ips_noroute, "\t{:discard-no-route/%ju} "
 987             "{N:/output packet%s discarded due to no route}\n");
 988         p(ips_fragmented, "\t{:sent-fragments/%ju} "
 989             "{N:/output datagram%s fragmented}\n");
 990         p(ips_ofragments, "\t{:fragments-created/%ju} "
 991             "{N:/fragment%s created}\n");
 992         p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
 993             "{N:/datagram%s that can't be fragmented}\n");
 994         p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
 995             "{N:/tunneling packet%s that can't find gif}\n");
 996         p(ips_badaddr, "\t{:discard-bad-address/%ju} "
 997             "{N:/datagram%s with bad address in header}\n");
 998 #undef p
 999 #undef p1a
1000         xo_close_container(name);
1001 }
1002
1003 /*
1004  * Dump ARP statistics structure.
1005  */
1006 void
1007 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1008 {
1009         struct arpstat arpstat;
1010
1011         if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1012             sizeof(arpstat), kread_counters) != 0)
1013                 return;
1014
1015         xo_open_container(name);
1016         xo_emit("{T:/%s}:\n", name);
1017
1018 #define p(f, m) if (arpstat.f || sflag <= 1) \
1019         xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1020 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1021         xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1022
1023         p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1024         p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1025         p(rxrequests, "{:received-requests/%ju} "
1026             "{N:/ARP request%s received}\n");
1027         p2(rxreplies, "{:received-replies/%ju} "
1028             "{N:/ARP repl%s received}\n");
1029         p(received, "{:received-packers/%ju} "
1030             "{N:/ARP packet%s received}\n");
1031         p(dropped, "{:dropped-no-entry/%ju} "
1032             "{N:/total packet%s dropped due to no ARP entry}\n");
1033         p(timeouts, "{:entries-timeout/%ju} "
1034             "{N:/ARP entry%s timed out}\n");
1035         p(dupips, "{:dropped-duplicate-address/%ju} "
1036             "{N:/Duplicate IP%s seen}\n");
1037 #undef p
1038 #undef p2
1039         xo_close_container(name);
1040 }
1041
1042
1043
1044 static  const char *icmpnames[ICMP_MAXTYPE + 1] = {
1045         "echo reply",                   /* RFC 792 */
1046         "#1",
1047         "#2",
1048         "destination unreachable",      /* RFC 792 */
1049         "source quench",                /* RFC 792 */
1050         "routing redirect",             /* RFC 792 */
1051         "#6",
1052         "#7",
1053         "echo",                         /* RFC 792 */
1054         "router advertisement",         /* RFC 1256 */
1055         "router solicitation",          /* RFC 1256 */
1056         "time exceeded",                /* RFC 792 */
1057         "parameter problem",            /* RFC 792 */
1058         "time stamp",                   /* RFC 792 */
1059         "time stamp reply",             /* RFC 792 */
1060         "information request",          /* RFC 792 */
1061         "information request reply",    /* RFC 792 */
1062         "address mask request",         /* RFC 950 */
1063         "address mask reply",           /* RFC 950 */
1064         "#19",
1065         "#20",
1066         "#21",
1067         "#22",
1068         "#23",
1069         "#24",
1070         "#25",
1071         "#26",
1072         "#27",
1073         "#28",
1074         "#29",
1075         "icmp traceroute",              /* RFC 1393 */
1076         "datagram conversion error",    /* RFC 1475 */
1077         "mobile host redirect",
1078         "IPv6 where-are-you",
1079         "IPv6 i-am-here",
1080         "mobile registration req",
1081         "mobile registration reply",
1082         "domain name request",          /* RFC 1788 */
1083         "domain name reply",            /* RFC 1788 */
1084         "icmp SKIP",
1085         "icmp photuris",                /* RFC 2521 */
1086 };
1087
1088 /*
1089  * Dump ICMP statistics.
1090  */
1091 void
1092 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1093 {
1094         struct icmpstat icmpstat;
1095         size_t len;
1096         int i, first;
1097
1098         if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1099             sizeof(icmpstat), kread_counters) != 0)
1100                 return;
1101
1102         xo_open_container(name);
1103         xo_emit("{T:/%s}:\n", name);
1104
1105 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1106         xo_emit(m, icmpstat.f, plural(icmpstat.f))
1107 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1108         xo_emit(m, icmpstat.f)
1109 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1110         xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1111
1112         p(icps_error, "\t{:icmp-calls/%lu} "
1113             "{N:/call%s to icmp_error}\n");
1114         p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1115             "{N:/error%s not generated in response to an icmp message}\n");
1116
1117         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1118                 if (icmpstat.icps_outhist[i] != 0) {
1119                         if (first) {
1120                                 xo_open_list("output-histogram");
1121                                 xo_emit("\tOutput histogram:\n");
1122                                 first = 0;
1123                         }
1124                         xo_open_instance("output-histogram");
1125                         if (icmpnames[i] != NULL)
1126                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1127                                     icmpnames[i], icmpstat.icps_outhist[i]);
1128                         else
1129                                 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1130                                     "{:count/%lu}\n",
1131                                     i, icmpstat.icps_outhist[i]);
1132                         xo_close_instance("output-histogram");
1133                 }
1134         }
1135         if (!first)
1136                 xo_close_list("output-histogram");
1137
1138         p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1139             "{N:/message%s with bad code fields}\n");
1140         p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1141             "{N:/message%s less than the minimum length}\n");
1142         p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1143             "{N:/message%s with bad checksum}\n");
1144         p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1145             "{N:/message%s with bad length}\n");
1146         p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1147             "{N:/multicast echo requests ignored}\n");
1148         p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1149             "{N:/multicast timestamp requests ignored}\n");
1150
1151         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1152                 if (icmpstat.icps_inhist[i] != 0) {
1153                         if (first) {
1154                                 xo_open_list("input-histogram");
1155                                 xo_emit("\tInput histogram:\n");
1156                                 first = 0;
1157                         }
1158                         xo_open_instance("input-histogram");
1159                         if (icmpnames[i] != NULL)
1160                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1161                                         icmpnames[i],
1162                                         icmpstat.icps_inhist[i]);
1163                         else
1164                                 xo_emit(
1165                         "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1166                                         i, icmpstat.icps_inhist[i]);
1167                         xo_close_instance("input-histogram");
1168                 }
1169         }
1170         if (!first)
1171                 xo_close_list("input-histogram");
1172
1173         p(icps_reflect, "\t{:sent-packets/%lu} "
1174             "{N:/message response%s generated}\n");
1175         p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1176             "{N:/invalid return address%s}\n");
1177         p(icps_noroute, "\t{:discard-no-route/%lu} "
1178             "{N:/no return route%s}\n");
1179 #undef p
1180 #undef p1a
1181 #undef p2
1182         if (live) {
1183                 len = sizeof i;
1184                 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1185                     0)
1186                         return;
1187                 xo_emit("\tICMP address mask responses are "
1188                     "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1189         }
1190
1191         xo_close_container(name);
1192 }
1193
1194 /*
1195  * Dump IGMP statistics structure.
1196  */
1197 void
1198 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1199 {
1200         struct igmpstat igmpstat;
1201
1202         if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1203             sizeof(igmpstat), kread) != 0)
1204                 return;
1205
1206         if (igmpstat.igps_version != IGPS_VERSION_3) {
1207                 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1208                     igmpstat.igps_version, IGPS_VERSION_3);
1209         }
1210         if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1211                 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1212                     igmpstat.igps_len, IGPS_VERSION3_LEN);
1213         }
1214
1215         xo_open_container(name);
1216         xo_emit("{T:/%s}:\n", name);
1217
1218 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1219         xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1220 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1221         xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1222
1223         p64(igps_rcv_total, "\t{:received-messages/%ju} "
1224             "{N:/message%s received}\n");
1225         p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1226             "{N:/message%s received with too few bytes}\n");
1227         p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1228             "{N:/message%s received with wrong TTL}\n");
1229         p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1230             "{N:/message%s received with bad checksum}\n");
1231         py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1232             "{N:/V1\\/V2 membership quer%s received}\n");
1233         py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1234             "{N:/V3 membership quer%s received}\n");
1235         py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1236             "{N:/membership quer%s received with invalid field(s)}\n");
1237         py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1238             "{N:/general quer%s received}\n");
1239         py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1240             "{N:/group quer%s received}\n");
1241         py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1242             "{N:/group-source quer%s received}\n");
1243         py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1244             "{N:/group-source quer%s dropped}\n");
1245         p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1246             "{N:/membership report%s received}\n");
1247         p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1248             "{N:/membership report%s received with invalid field(s)}\n");
1249         p64(igps_rcv_ourreports, "\t"
1250             "{:received-membership-reports-matching/%ju} "
1251             "{N:/membership report%s received for groups to which we belong}"
1252             "\n");
1253         p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1254             "{N:/V3 report%s received without Router Alert}\n");
1255         p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1256             "{N:/membership report%s sent}\n");
1257 #undef p64
1258 #undef py64
1259         xo_close_container(name);
1260 }
1261
1262 /*
1263  * Dump PIM statistics structure.
1264  */
1265 void
1266 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1267     int proto __unused)
1268 {
1269         struct pimstat pimstat;
1270
1271         if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1272             sizeof(pimstat), kread_counters) != 0)
1273                 return;
1274
1275         xo_open_container(name);
1276         xo_emit("{T:/%s}:\n", name);
1277
1278 #define p(f, m) if (pimstat.f || sflag <= 1) \
1279         xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1280 #define py(f, m) if (pimstat.f || sflag <= 1) \
1281         xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1282
1283         p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1284             "{N:/message%s received}\n");
1285         p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1286             "{N:/byte%s received}\n");
1287         p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1288             "{N:/message%s received with too few bytes}\n");
1289         p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1290             "{N:/message%s received with bad checksum}\n");
1291         p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1292             "{N:/message%s received with bad version}\n");
1293         p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1294             "{N:/data register message%s received}\n");
1295         p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1296             "{N:/data register byte%s received}\n");
1297         p(pims_rcv_registers_wrongiif, "\t"
1298             "{:received-data-register-wrong-interface/%ju} "
1299             "{N:/data register message%s received on wrong iif}\n");
1300         p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1301             "{N:/bad register%s received}\n");
1302         p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1303             "{N:/data register message%s sent}\n");
1304         p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1305             "{N:/data register byte%s sent}\n");
1306 #undef p
1307 #undef py
1308         xo_close_container(name);
1309 }
1310
1311 /*
1312  * Pretty print an Internet address (net address + port).
1313  */
1314 void
1315 inetprint(const char *container, struct in_addr *in, int port,
1316     const char *proto, int num_port, const int af1)
1317 {
1318         struct servent *sp = 0;
1319         char line[80], *cp;
1320         int width;
1321         size_t alen, plen;
1322
1323         if (container)
1324                 xo_open_container(container);
1325
1326         if (Wflag)
1327             snprintf(line, sizeof(line), "%s.", inetname(in));
1328         else
1329             snprintf(line, sizeof(line), "%.*s.",
1330                 (Aflag && !num_port) ? 12 : 16, inetname(in));
1331         alen = strlen(line);
1332         cp = line + alen;
1333         if (!num_port && port)
1334                 sp = getservbyport((int)port, proto);
1335         if (sp || port == 0)
1336                 snprintf(cp, sizeof(line) - alen,
1337                     "%.15s ", sp ? sp->s_name : "*");
1338         else
1339                 snprintf(cp, sizeof(line) - alen,
1340                     "%d ", ntohs((u_short)port));
1341         width = (Aflag && !Wflag) ? 18 :
1342                 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1343         if (Wflag)
1344                 xo_emit("{d:target/%-*s} ", width, line);
1345         else
1346                 xo_emit("{d:target/%-*.*s} ", width, width, line);
1347
1348         plen = strlen(cp) - 1;
1349         alen--;
1350         xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1351             plen, cp);
1352
1353         if (container)
1354                 xo_close_container(container);
1355 }
1356
1357 /*
1358  * Construct an Internet address representation.
1359  * If numeric_addr has been supplied, give
1360  * numeric value, otherwise try for symbolic name.
1361  */
1362 char *
1363 inetname(struct in_addr *inp)
1364 {
1365         char *cp;
1366         static char line[MAXHOSTNAMELEN];
1367         struct hostent *hp;
1368         struct netent *np;
1369
1370         cp = 0;
1371         if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1372                 int net = inet_netof(*inp);
1373                 int lna = inet_lnaof(*inp);
1374
1375                 if (lna == INADDR_ANY) {
1376                         np = getnetbyaddr(net, AF_INET);
1377                         if (np)
1378                                 cp = np->n_name;
1379                 }
1380                 if (cp == NULL) {
1381                         hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1382                         if (hp) {
1383                                 cp = hp->h_name;
1384                                 trimdomain(cp, strlen(cp));
1385                         }
1386                 }
1387         }
1388         if (inp->s_addr == INADDR_ANY)
1389                 strcpy(line, "*");
1390         else if (cp) {
1391                 strlcpy(line, cp, sizeof(line));
1392         } else {
1393                 inp->s_addr = ntohl(inp->s_addr);
1394 #define C(x)    ((u_int)((x) & 0xff))
1395                 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1396                     C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1397                     C(inp->s_addr >> 8), C(inp->s_addr));
1398         }
1399         return (line);
1400 }