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