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 #define _WANT_SOCKET
  45 #include <sys/socketvar.h>
  46 #include <sys/sysctl.h>
  47
  48 #include <net/route.h>
  49 #include <net/if_arp.h>
  50 #include <netinet/in.h>
  51 #include <netinet/in_systm.h>
  52 #include <netinet/ip.h>
  53 #include <netinet/ip_carp.h>
  54 #ifdef INET6
  55 #include <netinet/ip6.h>
  56 #endif /* INET6 */
  57 #include <netinet/in_pcb.h>
  58 #include <netinet/ip_icmp.h>
  59 #include <netinet/icmp_var.h>
  60 #include <netinet/igmp_var.h>
  61 #include <netinet/ip_var.h>
  62 #include <netinet/pim_var.h>
  63 #include <netinet/tcp.h>
  64 #include <netinet/tcpip.h>
  65 #include <netinet/tcp_seq.h>
  66 #define TCPSTATES
  67 #include <netinet/tcp_fsm.h>
  68 #include <netinet/tcp_timer.h>
  69 #include <netinet/tcp_var.h>
  70 #include <netinet/udp.h>
  71 #include <netinet/udp_var.h>
  72
  73 #include <arpa/inet.h>
  74 #include <err.h>
  75 #include <errno.h>
  76 #include <libutil.h>
  77 #include <netdb.h>
  78 #include <stdint.h>
  79 #include <stdio.h>
  80 #include <stdlib.h>
  81 #include <stdbool.h>
  82 #include <string.h>
  83 #include <unistd.h>
  84 #include <libxo/xo.h>
  85 #include "netstat.h"
  86 #include "nl_defs.h"
  87
  88 #ifdef INET
  89 static void inetprint(const char *, struct in_addr *, int, const char *, int,
  90     const int);
  91 #endif
  92 #ifdef INET6
  93 static int udp_done, tcp_done, sdp_done;
  94 #endif /* INET6 */
  95
  96 static int
  97 pcblist_sysctl(int proto, const char *name, char **bufp)
  98 {
  99         const char *mibvar;
 100         char *buf;
 101         size_t len;
 102
 103         switch (proto) {
 104         case IPPROTO_TCP:
 105                 mibvar = "net.inet.tcp.pcblist";
 106                 break;
 107         case IPPROTO_UDP:
 108                 mibvar = "net.inet.udp.pcblist";
 109                 break;
 110         case IPPROTO_DIVERT:
 111                 mibvar = "net.inet.divert.pcblist";
 112                 break;
 113         default:
 114                 mibvar = "net.inet.raw.pcblist";
 115                 break;
 116         }
 117         if (strncmp(name, "sdp", 3) == 0)
 118                 mibvar = "net.inet.sdp.pcblist";
 119         len = 0;
 120         if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
 121                 if (errno != ENOENT)
 122                         xo_warn("sysctl: %s", mibvar);
 123                 return (0);
 124         }
 125         if ((buf = malloc(len)) == NULL) {
 126                 xo_warnx("malloc %lu bytes", (u_long)len);
 127                 return (0);
 128         }
 129         if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
 130                 xo_warn("sysctl: %s", mibvar);
 131                 free(buf);
 132                 return (0);
 133         }
 134         *bufp = buf;
 135         return (1);
 136 }
 137
 138 /*
 139  * Copied directly from uipc_socket2.c.  We leave out some fields that are in
 140  * nested structures that aren't used to avoid extra work.
 141  */
 142 static void
 143 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
 144 {
 145         xsb->sb_cc = sb->sb_ccc;
 146         xsb->sb_hiwat = sb->sb_hiwat;
 147         xsb->sb_mbcnt = sb->sb_mbcnt;
 148         xsb->sb_mcnt = sb->sb_mcnt;
 149         xsb->sb_ccnt = sb->sb_ccnt;
 150         xsb->sb_mbmax = sb->sb_mbmax;
 151         xsb->sb_lowat = sb->sb_lowat;
 152         xsb->sb_flags = sb->sb_flags;
 153         xsb->sb_timeo = sb->sb_timeo;
 154 }
 155
 156 int
 157 sotoxsocket(struct socket *so, struct xsocket *xso)
 158 {
 159         struct protosw proto;
 160         struct domain domain;
 161
 162         bzero(xso, sizeof *xso);
 163         xso->xso_len = sizeof *xso;
 164         xso->xso_so = (uintptr_t)so;
 165         xso->so_type = so->so_type;
 166         xso->so_options = so->so_options;
 167         xso->so_linger = so->so_linger;
 168         xso->so_state = so->so_state;
 169         xso->so_pcb = (uintptr_t)so->so_pcb;
 170         if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
 171                 return (-1);
 172         xso->xso_protocol = proto.pr_protocol;
 173         if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
 174                 return (-1);
 175         xso->xso_family = domain.dom_family;
 176         xso->so_timeo = so->so_timeo;
 177         xso->so_error = so->so_error;
 178         if ((so->so_options & SO_ACCEPTCONN) != 0) {
 179                 xso->so_qlen = so->sol_qlen;
 180                 xso->so_incqlen = so->sol_incqlen;
 181                 xso->so_qlimit = so->sol_qlimit;
 182         } else {
 183                 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
 184                 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
 185                 xso->so_oobmark = so->so_oobmark;
 186         }
 187         return (0);
 188 }
 189
 190 /*
 191  * Print a summary of connections related to an Internet
 192  * protocol.  For TCP, also give state of connection.
 193  * Listening processes (aflag) are suppressed unless the
 194  * -a (all) flag is specified.
 195  */
 196 void
 197 protopr(u_long off, const char *name, int af1, int proto)
 198 {
 199         static int first = 1;
 200         int istcp;
 201         char *buf;
 202         const char *vchar;
 203         struct xtcpcb *tp;
 204         struct xinpcb *inp;
 205         struct xinpgen *xig, *oxig;
 206         struct xsocket *so;
 207
 208         istcp = 0;
 209         switch (proto) {
 210         case IPPROTO_TCP:
 211 #ifdef INET6
 212                 if (strncmp(name, "sdp", 3) != 0) {
 213                         if (tcp_done != 0)
 214                                 return;
 215                         else
 216                                 tcp_done = 1;
 217                 } else {
 218                         if (sdp_done != 0)
 219                                 return;
 220                         else
 221                                 sdp_done = 1;
 222                 }
 223 #endif
 224                 istcp = 1;
 225                 break;
 226         case IPPROTO_UDP:
 227 #ifdef INET6
 228                 if (udp_done != 0)
 229                         return;
 230                 else
 231                         udp_done = 1;
 232 #endif
 233                 break;
 234         }
 235
 236         if (!pcblist_sysctl(proto, name, &buf))
 237                 return;
 238
 239         oxig = xig = (struct xinpgen *)buf;
 240         for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
 241             xig->xig_len > sizeof(struct xinpgen);
 242             xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
 243                 if (istcp) {
 244                         tp = (struct xtcpcb *)xig;
 245                         inp = &tp->xt_inp;
 246                 } else {
 247                         inp = (struct xinpcb *)xig;
 248                 }
 249                 so = &inp->xi_socket;
 250
 251                 /* Ignore sockets for protocols other than the desired one. */
 252                 if (so->xso_protocol != proto)
 253                         continue;
 254
 255                 /* Ignore PCBs which were freed during copyout. */
 256                 if (inp->inp_gencnt > oxig->xig_gen)
 257                         continue;
 258
 259                 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
 260 #ifdef INET6
 261                     || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
 262 #endif /* INET6 */
 263                     || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
 264 #ifdef INET6
 265                                           && (inp->inp_vflag & INP_IPV6) == 0
 266 #endif /* INET6 */
 267                         ))
 268                     )
 269                         continue;
 270                 if (!aflag &&
 271                     (
 272                      (istcp && tp->t_state == TCPS_LISTEN)
 273                      || (af1 == AF_INET &&
 274                       inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 275 #ifdef INET6
 276                      || (af1 == AF_INET6 &&
 277                          IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 278 #endif /* INET6 */
 279                      || (af1 == AF_UNSPEC &&
 280                          (((inp->inp_vflag & INP_IPV4) != 0 &&
 281                            inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 282 #ifdef INET6
 283                           || ((inp->inp_vflag & INP_IPV6) != 0 &&
 284                               IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 285 #endif
 286                           ))
 287                      ))
 288                         continue;
 289
 290                 if (first) {
 291                         if (!Lflag) {
 292                                 xo_emit("Active Internet connections");
 293                                 if (aflag)
 294                                         xo_emit(" (including servers)");
 295                         } else
 296                                 xo_emit(
 297         "Current listen queue sizes (qlen/incqlen/maxqlen)");
 298                         xo_emit("\n");
 299                         if (Aflag)
 300                                 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
 301                                     "Tcpcb");
 302                         if (Lflag)
 303                                 xo_emit((Aflag && !Wflag) ?
 304                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
 305                                     ((!Wflag || af1 == AF_INET) ?
 306                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
 307                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
 308                                     "Proto", "Listen", "Local Address");
 309                         else if (Tflag)
 310                                 xo_emit((Aflag && !Wflag) ?
 311     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
 312                                     ((!Wflag || af1 == AF_INET) ?
 313     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
 314     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
 315                                     "Proto", "Rexmit", "OOORcv", "0-win",
 316                                     "Local Address", "Foreign Address");
 317                         else {
 318                                 xo_emit((Aflag && !Wflag) ?
 319     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
 320                                     ((!Wflag || af1 == AF_INET) ?
 321     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
 322     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
 323                                     "Proto", "Recv-Q", "Send-Q",
 324                                     "Local Address", "Foreign Address");
 325                                 if (!xflag && !Rflag)
 326                                         xo_emit(" {T:/%-11.11s}", "(state)");
 327                         }
 328                         if (xflag) {
 329                                 xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 330                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 331                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 332                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
 333                                     "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
 334                                     "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
 335                                     "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
 336                                 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
 337                                     "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
 338                                     "rexmt", "persist", "keep", "2msl",
 339                                     "delack", "rcvtime");
 340                         } else if (Rflag) {
 341                                 xo_emit("  {T:/%8.8s} {T:/%5.5s}",
 342                                     "flowid", "ftype");
 343                         }
 344                         if (Pflag)
 345                                 xo_emit(" {T:/%s}", "Log ID");
 346                         xo_emit("\n");
 347                         first = 0;
 348                 }
 349                 if (Lflag && so->so_qlimit == 0)
 350                         continue;
 351                 xo_open_instance("socket");
 352                 if (Aflag) {
 353                         if (istcp)
 354                                 xo_emit("{q:address/%*lx} ",
 355                                     2 * (int)sizeof(void *),
 356                                     (u_long)inp->inp_ppcb);
 357                         else
 358                                 xo_emit("{q:address/%*lx} ",
 359                                     2 * (int)sizeof(void *),
 360                                     (u_long)so->so_pcb);
 361                 }
 362 #ifdef INET6
 363                 if ((inp->inp_vflag & INP_IPV6) != 0)
 364                         vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 365                             "46" : "6";
 366                 else
 367 #endif
 368                 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 369                     "4" : "";
 370                 if (istcp && (tp->t_flags & TF_TOE) != 0)
 371                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
 372                 else
 373                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
 374                 if (Lflag) {
 375                         char buf1[33];
 376
 377                         snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
 378                             so->so_incqlen, so->so_qlimit);
 379                         xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
 380                 } else if (Tflag) {
 381                         if (istcp)
 382                                 xo_emit("{:sent-retransmit-packets/%6u} "
 383                                     "{:received-out-of-order-packets/%6u} "
 384                                     "{:sent-zero-window/%6u} ",
 385                                     tp->t_sndrexmitpack, tp->t_rcvoopack,
 386                                     tp->t_sndzerowin);
 387                         else
 388                                 xo_emit("{P:/%21s}", "");
 389                 } else {
 390                         xo_emit("{:receive-bytes-waiting/%6u} "
 391                             "{:send-bytes-waiting/%6u} ",
 392                             so->so_rcv.sb_cc, so->so_snd.sb_cc);
 393                 }
 394                 if (numeric_port) {
 395 #ifdef INET
 396                         if (inp->inp_vflag & INP_IPV4) {
 397                                 inetprint("local", &inp->inp_laddr,
 398                                     (int)inp->inp_lport, name, 1, af1);
 399                                 if (!Lflag)
 400                                         inetprint("remote", &inp->inp_faddr,
 401                                             (int)inp->inp_fport, name, 1, af1);
 402                         }
 403 #endif
 404 #if defined(INET) && defined(INET6)
 405                         else
 406 #endif
 407 #ifdef INET6
 408                         if (inp->inp_vflag & INP_IPV6) {
 409                                 inet6print("local", &inp->in6p_laddr,
 410                                     (int)inp->inp_lport, name, 1);
 411                                 if (!Lflag)
 412                                         inet6print("remote", &inp->in6p_faddr,
 413                                             (int)inp->inp_fport, name, 1);
 414                         } /* else nothing printed now */
 415 #endif /* INET6 */
 416                 } else if (inp->inp_flags & INP_ANONPORT) {
 417 #ifdef INET
 418                         if (inp->inp_vflag & INP_IPV4) {
 419                                 inetprint("local", &inp->inp_laddr,
 420                                     (int)inp->inp_lport, name, 1, af1);
 421                                 if (!Lflag)
 422                                         inetprint("remote", &inp->inp_faddr,
 423                                             (int)inp->inp_fport, name, 0, af1);
 424                         }
 425 #endif
 426 #if defined(INET) && defined(INET6)
 427                         else
 428 #endif
 429 #ifdef INET6
 430                         if (inp->inp_vflag & INP_IPV6) {
 431                                 inet6print("local", &inp->in6p_laddr,
 432                                     (int)inp->inp_lport, name, 1);
 433                                 if (!Lflag)
 434                                         inet6print("remote", &inp->in6p_faddr,
 435                                             (int)inp->inp_fport, name, 0);
 436                         } /* else nothing printed now */
 437 #endif /* INET6 */
 438                 } else {
 439 #ifdef INET
 440                         if (inp->inp_vflag & INP_IPV4) {
 441                                 inetprint("local", &inp->inp_laddr,
 442                                     (int)inp->inp_lport, name, 0, af1);
 443                                 if (!Lflag)
 444                                         inetprint("remote", &inp->inp_faddr,
 445                                             (int)inp->inp_fport, name,
 446                                             inp->inp_lport != inp->inp_fport,
 447                                             af1);
 448                         }
 449 #endif
 450 #if defined(INET) && defined(INET6)
 451                         else
 452 #endif
 453 #ifdef INET6
 454                         if (inp->inp_vflag & INP_IPV6) {
 455                                 inet6print("local", &inp->in6p_laddr,
 456                                     (int)inp->inp_lport, name, 0);
 457                                 if (!Lflag)
 458                                         inet6print("remote", &inp->in6p_faddr,
 459                                             (int)inp->inp_fport, name,
 460                                             inp->inp_lport != inp->inp_fport);
 461                         } /* else nothing printed now */
 462 #endif /* INET6 */
 463                 }
 464                 if (xflag) {
 465                         xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
 466                             "{:receive-clusters/%6u} {:send-clusters/%6u} "
 467                             "{:receive-high-water/%6u} {:send-high-water/%6u} "
 468                             "{:receive-low-water/%6u} {:send-low-water/%6u} "
 469                             "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
 470                             "{:receive-mbuf-bytes-max/%6u} "
 471                             "{:send-mbuf-bytes-max/%6u}",
 472                             so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
 473                             so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
 474                             so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
 475                             so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
 476                             so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
 477                             so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
 478                         if (istcp)
 479                                 xo_emit(" {:retransmit-timer/%4d.%02d} "
 480                                     "{:persist-timer/%4d.%02d} "
 481                                     "{:keepalive-timer/%4d.%02d} "
 482                                     "{:msl2-timer/%4d.%02d} "
 483                                     "{:delay-ack-timer/%4d.%02d} "
 484                                     "{:inactivity-timer/%4d.%02d}",
 485                                     tp->tt_rexmt / 1000,
 486                                     (tp->tt_rexmt % 1000) / 10,
 487                                     tp->tt_persist / 1000,
 488                                     (tp->tt_persist % 1000) / 10,
 489                                     tp->tt_keep / 1000,
 490                                     (tp->tt_keep % 1000) / 10,
 491                                     tp->tt_2msl / 1000,
 492                                     (tp->tt_2msl % 1000) / 10,
 493                                     tp->tt_delack / 1000,
 494                                     (tp->tt_delack % 1000) / 10,
 495                                     tp->t_rcvtime / 1000,
 496                                     (tp->t_rcvtime % 1000) / 10);
 497                 }
 498                 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
 499                         if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
 500                                 xo_emit("{:tcp-state/%-11d}", tp->t_state);
 501                         else {
 502                                 xo_emit("{:tcp-state/%-11s}",
 503                                     tcpstates[tp->t_state]);
 504 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
 505                                 /* Show T/TCP `hidden state' */
 506                                 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
 507                                         xo_emit("{:need-syn-or-fin/*}");
 508 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
 509                         }
 510                 }
 511                 if (Rflag) {
 512                         /* XXX: is this right Alfred */
 513                         xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
 514                             inp->inp_flowid,
 515                             inp->inp_flowtype);
 516                 }
 517                 if (istcp && Pflag)
 518                         xo_emit(" {:log-id/%s}", tp->xt_logid[0] == '\0' ?
 519                             "-" : tp->xt_logid);
 520                 xo_emit("\n");
 521                 xo_close_instance("socket");
 522         }
 523         if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
 524                 if (oxig->xig_count > xig->xig_count) {
 525                         xo_emit("Some {d:lost/%s} sockets may have been "
 526                             "deleted.\n", name);
 527                 } else if (oxig->xig_count < xig->xig_count) {
 528                         xo_emit("Some {d:created/%s} sockets may have been "
 529                             "created.\n", name);
 530                 } else {
 531                         xo_emit("Some {d:changed/%s} sockets may have been "
 532                             "created or deleted.\n", name);
 533                 }
 534         }
 535         free(buf);
 536 }
 537
 538 /*
 539  * Dump TCP statistics structure.
 540  */
 541 void
 542 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 543 {
 544         struct tcpstat tcpstat;
 545         uint64_t tcps_states[TCP_NSTATES];
 546
 547 #ifdef INET6
 548         if (tcp_done != 0)
 549                 return;
 550         else
 551                 tcp_done = 1;
 552 #endif
 553
 554         if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
 555             sizeof(tcpstat), kread_counters) != 0)
 556                 return;
 557
 558         if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
 559             &tcps_states, sizeof(tcps_states), kread_counters) != 0)
 560                 return;
 561
 562         xo_open_container("tcp");
 563         xo_emit("{T:/%s}:\n", name);
 564
 565 #define p(f, m) if (tcpstat.f || sflag <= 1)                            \
 566         xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
 567 #define p1a(f, m) if (tcpstat.f || sflag <= 1)                          \
 568         xo_emit(m, (uintmax_t )tcpstat.f)
 569 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)       \
 570         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 571             (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
 572 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)      \
 573         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 574             (uintmax_t )tcpstat.f2)
 575 #define p3(f, m) if (tcpstat.f || sflag <= 1)                           \
 576         xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
 577
 578         p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
 579         p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
 580             "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
 581         p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
 582             "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
 583             "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
 584             "{N:retransmitted}\n");
 585         p(tcps_sndrexmitbad, "\t\t"
 586             "{:sent-unnecessary-retransmitted-packets/%ju} "
 587             "{N:/data packet%s unnecessarily retransmitted}\n");
 588         p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
 589             "{N:/resend%s initiated by MTU discovery}\n");
 590         p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
 591             "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
 592             "{N:delayed})\n");
 593         p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
 594             "{N:/URG only packet%s}\n");
 595         p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
 596             "{N:/window probe packet%s}\n");
 597         p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
 598             "{N:/window update packet%s}\n");
 599         p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
 600             "{N:/control packet%s}\n");
 601         p(tcps_rcvtotal, "\t{:received-packets/%ju} "
 602             "{N:/packet%s received}\n");
 603         p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
 604             "{:received-ack-packets/%ju} {N:/ack%s} "
 605             "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
 606         p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
 607             "{N:/duplicate ack%s}\n");
 608         p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
 609             "{N:/ack%s for unsent data}\n");
 610         p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
 611             "{:received-in-sequence-packets/%ju} {N:/packet%s} "
 612             "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
 613             "{N:received in-sequence}\n");
 614         p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
 615             "{:received-completely-duplicate-packets/%ju} "
 616             "{N:/completely duplicate packet%s} "
 617             "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
 618         p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
 619             "{N:/old duplicate packet%s}\n");
 620         p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
 621             "{:received-some-duplicate-packets/%ju} "
 622             "{N:/packet%s with some dup. data} "
 623             "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
 624         p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
 625             "{N:/out-of-order packet%s} "
 626             "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
 627         p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
 628             "{:received-after-window-packets/%ju} {N:/packet%s} "
 629             "({:received-after-window-bytes/%ju} {N:/byte%s}) "
 630             "{N:of data after window}\n");
 631         p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
 632             "{N:/window probe%s}\n");
 633         p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
 634             "{N:/window update packet%s}\n");
 635         p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
 636             "{N:/packet%s received after close}\n");
 637         p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
 638             "{N:/discarded for bad checksum%s}\n");
 639         p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
 640             "{N:/discarded for bad header offset field%s}\n");
 641         p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
 642             "{N:discarded because packet too short}\n");
 643         p1a(tcps_rcvmemdrop, "\t\t{:discard-memory-problems/%ju} "
 644             "{N:discarded due to memory problems}\n");
 645         p(tcps_connattempt, "\t{:connection-requests/%ju} "
 646             "{N:/connection request%s}\n");
 647         p(tcps_accepts, "\t{:connections-accepts/%ju} "
 648             "{N:/connection accept%s}\n");
 649         p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
 650             "{N:/bad connection attempt%s}\n");
 651         p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
 652             "{N:/listen queue overflow%s}\n");
 653         p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
 654             "{N:/ignored RSTs in the window%s}\n");
 655         p(tcps_connects, "\t{:connections-established/%ju} "
 656             "{N:/connection%s established (including accepts)}\n");
 657         p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
 658             "{N:/time%s used RTT from hostcache}\n");
 659         p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
 660             "{N:/time%s used RTT variance from hostcache}\n");
 661         p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
 662             "{N:/time%s used slow-start threshold from hostcache}\n");
 663         p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
 664             "{N:/connection%s closed (including} "
 665             "{:connection-drops/%ju} {N:/drop%s})\n");
 666         p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
 667             "{N:/connection%s updated cached RTT on close}\n");
 668         p(tcps_cachedrttvar, "\t\t"
 669             "{:connections-updated-variance-on-close/%ju} "
 670             "{N:/connection%s updated cached RTT variance on close}\n");
 671         p(tcps_cachedssthresh, "\t\t"
 672             "{:connections-updated-ssthresh-on-close/%ju} "
 673             "{N:/connection%s updated cached ssthresh on close}\n");
 674         p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
 675             "{N:/embryonic connection%s dropped}\n");
 676         p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
 677             "{N:/segment%s updated rtt (of} "
 678             "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
 679         p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
 680             "{N:/retransmit timeout%s}\n");
 681         p(tcps_timeoutdrop, "\t\t"
 682             "{:connections-dropped-by-retransmit-timeout/%ju} "
 683             "{N:/connection%s dropped by rexmit timeout}\n");
 684         p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
 685             "{N:/persist timeout%s}\n");
 686         p(tcps_persistdrop, "\t\t"
 687             "{:connections-dropped-by-persist-timeout/%ju} "
 688             "{N:/connection%s dropped by persist timeout}\n");
 689         p(tcps_finwait2_drops, "\t"
 690             "{:connections-dropped-by-finwait2-timeout/%ju} "
 691             "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
 692         p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
 693             "{N:/keepalive timeout%s}\n");
 694         p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
 695             "{N:/keepalive probe%s sent}\n");
 696         p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
 697             "{N:/connection%s dropped by keepalive}\n");
 698         p(tcps_predack, "\t{:ack-header-predictions/%ju} "
 699             "{N:/correct ACK header prediction%s}\n");
 700         p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
 701             "{N:/correct data packet header prediction%s}\n");
 702
 703         xo_open_container("syncache");
 704
 705         p3(tcps_sc_added, "\t{:entries-added/%ju} "
 706             "{N:/syncache entr%s added}\n");
 707         p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
 708             "{N:/retransmitted}\n");
 709         p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
 710         p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
 711         p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
 712         p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
 713             "{N:/bucket overflow}\n");
 714         p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
 715             "{N:/cache overflow}\n");
 716         p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
 717         p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
 718         p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
 719         p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
 720         p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
 721         p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
 722         p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
 723         p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
 724             "{N:/cookie%s received}\n");
 725
 726         xo_close_container("syncache");
 727
 728         xo_open_container("hostcache");
 729
 730         p3(tcps_hc_added, "\t{:entries-added/%ju} "
 731             "{N:/hostcache entr%s added}\n");
 732         p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
 733             "{N:/bucket overflow}\n");
 734
 735         xo_close_container("hostcache");
 736
 737         xo_open_container("sack");
 738
 739         p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
 740             "{N:/SACK recovery episode%s}\n");
 741         p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
 742             "{N:/segment rexmit%s in SACK recovery episodes}\n");
 743         p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
 744             "{N:/byte rexmit%s in SACK recovery episodes}\n");
 745         p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
 746             "{N:/SACK option%s (SACK blocks) received}\n");
 747         p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
 748             "{N:/SACK option%s (SACK blocks) sent}\n");
 749         p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
 750             "{N:/SACK scoreboard overflow}\n");
 751
 752         xo_close_container("sack");
 753         xo_open_container("ecn");
 754
 755         p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
 756             "{N:/packet%s with ECN CE bit set}\n");
 757         p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
 758             "{N:/packet%s with ECN ECT(0) bit set}\n");
 759         p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
 760             "{N:/packet%s with ECN ECT(1) bit set}\n");
 761         p(tcps_ecn_shs, "\t{:handshakes/%ju} "
 762             "{N:/successful ECN handshake%s}\n");
 763         p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
 764             "{N:/time%s ECN reduced the congestion window}\n");
 765
 766         xo_close_container("ecn");
 767         xo_open_container("tcp-signature");
 768         p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
 769             "{N:/packet%s with matching signature received}\n");
 770         p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
 771             "{N:/packet%s with bad signature received}\n");
 772         p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
 773             "{N:/time%s failed to make signature due to no SA}\n");
 774         p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
 775             "{N:/time%s unexpected signature received}\n");
 776         p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
 777             "{N:/time%s no signature provided by segment}\n");
 778
 779         xo_close_container("tcp-signature");
 780         xo_open_container("pmtud");
 781
 782         p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
 783             "{N:/Path MTU discovery black hole detection activation%s}\n");
 784         p(tcps_pmtud_blackhole_activated_min_mss,
 785             "\t{:pmtud-activated-min-mss/%ju} "
 786             "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
 787         p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
 788             "{N:/Path MTU discovery black hole detection failure%s}\n");
 789  #undef p
 790  #undef p1a
 791  #undef p2
 792  #undef p2a
 793  #undef p3
 794         xo_close_container("pmtud");
 795
 796
 797         xo_open_container("TCP connection count by state");
 798         xo_emit("{T:/TCP connection count by state}:\n");
 799         for (int i = 0; i < TCP_NSTATES; i++) {
 800                 /*
 801                  * XXXGL: is there a way in libxo to use %s
 802                  * in the "content string" of a format
 803                  * string? I failed to do that, that's why
 804                  * a temporary buffer is used to construct
 805                  * format string for xo_emit().
 806                  */
 807                 char fmtbuf[80];
 808
 809                 if (sflag > 1 && tcps_states[i] == 0)
 810                         continue;
 811                 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
 812                     "{Np:/connection ,connections} in %s state\n",
 813                     tcpstates[i], tcpstates[i]);
 814                 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
 815         }
 816         xo_close_container("TCP connection count by state");
 817
 818         xo_close_container("tcp");
 819 }
 820
 821 /*
 822  * Dump UDP statistics structure.
 823  */
 824 void
 825 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 826 {
 827         struct udpstat udpstat;
 828         uint64_t delivered;
 829
 830 #ifdef INET6
 831         if (udp_done != 0)
 832                 return;
 833         else
 834                 udp_done = 1;
 835 #endif
 836
 837         if (fetch_stats("net.inet.udp.stats", off, &udpstat,
 838             sizeof(udpstat), kread_counters) != 0)
 839                 return;
 840
 841         xo_open_container("udp");
 842         xo_emit("{T:/%s}:\n", name);
 843
 844 #define p(f, m) if (udpstat.f || sflag <= 1) \
 845         xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
 846 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
 847         xo_emit("\t" m, (uintmax_t)udpstat.f)
 848
 849         p(udps_ipackets, "{:received-datagrams/%ju} "
 850             "{N:/datagram%s received}\n");
 851         p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
 852             "{N:/with incomplete header}\n");
 853         p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
 854             "{N:/with bad data length field}\n");
 855         p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
 856             "{N:/with bad checksum}\n");
 857         p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
 858             "{N:/with no checksum}\n");
 859         p1a(udps_noport, "{:dropped-no-socket/%ju} "
 860             "{N:/dropped due to no socket}\n");
 861         p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
 862             "{N:/broadcast\\/multicast datagram%s undelivered}\n");
 863         p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
 864             "{N:/dropped due to full socket buffers}\n");
 865         p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
 866             "{N:/not for hashed pcb}\n");
 867         delivered = udpstat.udps_ipackets -
 868                     udpstat.udps_hdrops -
 869                     udpstat.udps_badlen -
 870                     udpstat.udps_badsum -
 871                     udpstat.udps_noport -
 872                     udpstat.udps_noportbcast -
 873                     udpstat.udps_fullsock;
 874         if (delivered || sflag <= 1)
 875                 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
 876                     (uint64_t)delivered);
 877         p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
 878         /* the next statistic is cumulative in udps_noportbcast */
 879         p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
 880             "{N:/time%s multicast source filter matched}\n");
 881 #undef p
 882 #undef p1a
 883         xo_close_container("udp");
 884 }
 885
 886 /*
 887  * Dump CARP statistics structure.
 888  */
 889 void
 890 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 891 {
 892         struct carpstats carpstat;
 893
 894         if (fetch_stats("net.inet.carp.stats", off, &carpstat,
 895             sizeof(carpstat), kread_counters) != 0)
 896                 return;
 897
 898         xo_open_container(name);
 899         xo_emit("{T:/%s}:\n", name);
 900
 901 #define p(f, m) if (carpstat.f || sflag <= 1) \
 902         xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
 903 #define p2(f, m) if (carpstat.f || sflag <= 1) \
 904         xo_emit(m, (uintmax_t)carpstat.f)
 905
 906         p(carps_ipackets, "\t{:received-inet-packets/%ju} "
 907             "{N:/packet%s received (IPv4)}\n");
 908         p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
 909             "{N:/packet%s received (IPv6)}\n");
 910         p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
 911             "{N:/packet%s discarded for wrong TTL}\n");
 912         p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
 913             "{N:/packet%s shorter than header}\n");
 914         p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
 915             "{N:/discarded for bad checksum%s}\n");
 916         p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
 917             "{N:/discarded packet%s with a bad version}\n");
 918         p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
 919             "{N:/discarded because packet too short}\n");
 920         p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
 921             "{N:/discarded for bad authentication}\n");
 922         p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
 923             "{N:/discarded for bad vhid}\n");
 924         p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
 925             "{N:/discarded because of a bad address list}\n");
 926         p(carps_opackets, "\t{:sent-inet-packets/%ju} "
 927             "{N:/packet%s sent (IPv4)}\n");
 928         p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
 929             "{N:/packet%s sent (IPv6)}\n");
 930         p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
 931             "{N:/send failed due to mbuf memory error}\n");
 932 #if notyet
 933         p(carps_ostates, "\t\t{:send-state-updates/%s} "
 934             "{N:/state update%s sent}\n");
 935 #endif
 936 #undef p
 937 #undef p2
 938         xo_close_container(name);
 939 }
 940
 941 /*
 942  * Dump IP statistics structure.
 943  */
 944 void
 945 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 946 {
 947         struct ipstat ipstat;
 948
 949         if (fetch_stats("net.inet.ip.stats", off, &ipstat,
 950             sizeof(ipstat), kread_counters) != 0)
 951                 return;
 952
 953         xo_open_container(name);
 954         xo_emit("{T:/%s}:\n", name);
 955
 956 #define p(f, m) if (ipstat.f || sflag <= 1) \
 957         xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
 958 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
 959         xo_emit(m, (uintmax_t )ipstat.f)
 960
 961         p(ips_total, "\t{:received-packets/%ju} "
 962             "{N:/total packet%s received}\n");
 963         p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
 964             "{N:/bad header checksum%s}\n");
 965         p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
 966             "{N:/with size smaller than minimum}\n");
 967         p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
 968             "{N:/with data size < data length}\n");
 969         p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
 970             "{N:/with ip length > max ip packet size}\n");
 971         p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
 972             "{N:/with header length < data size}\n");
 973         p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
 974             "{N:/with data length < header length}\n");
 975         p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
 976             "{N:/with bad options}\n");
 977         p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
 978             "{N:/with incorrect version number}\n");
 979         p(ips_fragments, "\t{:received-fragments/%ju} "
 980             "{N:/fragment%s received}\n");
 981         p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
 982             "{N:/fragment%s dropped (dup or out of space)}\n");
 983         p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
 984             "{N:/fragment%s dropped after timeout}\n");
 985         p(ips_reassembled, "\t{:reassembled-packets/%ju} "
 986             "{N:/packet%s reassembled ok}\n");
 987         p(ips_delivered, "\t{:received-local-packets/%ju} "
 988             "{N:/packet%s for this host}\n");
 989         p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
 990             "{N:/packet%s for unknown\\/unsupported protocol}\n");
 991         p(ips_forward, "\t{:forwarded-packets/%ju} "
 992             "{N:/packet%s forwarded}");
 993         p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
 994             "{N:/packet%s fast forwarded})");
 995         if (ipstat.ips_forward || sflag <= 1)
 996                 xo_emit("\n");
 997         p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
 998             "{N:/packet%s not forwardable}\n");
 999         p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1000             "{N:/packet%s received for unknown multicast group}\n");
1001         p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1002             "{N:/redirect%s sent}\n");
1003         p(ips_localout, "\t{:sent-packets/%ju} "
1004             "{N:/packet%s sent from this host}\n");
1005         p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1006             "{N:/packet%s sent with fabricated ip header}\n");
1007         p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1008             "{N:/output packet%s dropped due to no bufs, etc.}\n");
1009         p(ips_noroute, "\t{:discard-no-route/%ju} "
1010             "{N:/output packet%s discarded due to no route}\n");
1011         p(ips_fragmented, "\t{:sent-fragments/%ju} "
1012             "{N:/output datagram%s fragmented}\n");
1013         p(ips_ofragments, "\t{:fragments-created/%ju} "
1014             "{N:/fragment%s created}\n");
1015         p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1016             "{N:/datagram%s that can't be fragmented}\n");
1017         p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1018             "{N:/tunneling packet%s that can't find gif}\n");
1019         p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1020             "{N:/datagram%s with bad address in header}\n");
1021 #undef p
1022 #undef p1a
1023         xo_close_container(name);
1024 }
1025
1026 /*
1027  * Dump ARP statistics structure.
1028  */
1029 void
1030 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1031 {
1032         struct arpstat arpstat;
1033
1034         if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1035             sizeof(arpstat), kread_counters) != 0)
1036                 return;
1037
1038         xo_open_container(name);
1039         xo_emit("{T:/%s}:\n", name);
1040
1041 #define p(f, m) if (arpstat.f || sflag <= 1) \
1042         xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1043 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1044         xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1045
1046         p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1047         p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to sent}\n");
1048         p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1049         p(rxrequests, "{:received-requests/%ju} "
1050             "{N:/ARP request%s received}\n");
1051         p2(rxreplies, "{:received-replies/%ju} "
1052             "{N:/ARP repl%s received}\n");
1053         p(received, "{:received-packers/%ju} "
1054             "{N:/ARP packet%s received}\n");
1055         p(dropped, "{:dropped-no-entry/%ju} "
1056             "{N:/total packet%s dropped due to no ARP entry}\n");
1057         p(timeouts, "{:entries-timeout/%ju} "
1058             "{N:/ARP entry%s timed out}\n");
1059         p(dupips, "{:dropped-duplicate-address/%ju} "
1060             "{N:/Duplicate IP%s seen}\n");
1061 #undef p
1062 #undef p2
1063         xo_close_container(name);
1064 }
1065
1066
1067
1068 static  const char *icmpnames[ICMP_MAXTYPE + 1] = {
1069         "echo reply",                   /* RFC 792 */
1070         "#1",
1071         "#2",
1072         "destination unreachable",      /* RFC 792 */
1073         "source quench",                /* RFC 792 */
1074         "routing redirect",             /* RFC 792 */
1075         "#6",
1076         "#7",
1077         "echo",                         /* RFC 792 */
1078         "router advertisement",         /* RFC 1256 */
1079         "router solicitation",          /* RFC 1256 */
1080         "time exceeded",                /* RFC 792 */
1081         "parameter problem",            /* RFC 792 */
1082         "time stamp",                   /* RFC 792 */
1083         "time stamp reply",             /* RFC 792 */
1084         "information request",          /* RFC 792 */
1085         "information request reply",    /* RFC 792 */
1086         "address mask request",         /* RFC 950 */
1087         "address mask reply",           /* RFC 950 */
1088         "#19",
1089         "#20",
1090         "#21",
1091         "#22",
1092         "#23",
1093         "#24",
1094         "#25",
1095         "#26",
1096         "#27",
1097         "#28",
1098         "#29",
1099         "icmp traceroute",              /* RFC 1393 */
1100         "datagram conversion error",    /* RFC 1475 */
1101         "mobile host redirect",
1102         "IPv6 where-are-you",
1103         "IPv6 i-am-here",
1104         "mobile registration req",
1105         "mobile registration reply",
1106         "domain name request",          /* RFC 1788 */
1107         "domain name reply",            /* RFC 1788 */
1108         "icmp SKIP",
1109         "icmp photuris",                /* RFC 2521 */
1110 };
1111
1112 /*
1113  * Dump ICMP statistics.
1114  */
1115 void
1116 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1117 {
1118         struct icmpstat icmpstat;
1119         size_t len;
1120         int i, first;
1121
1122         if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1123             sizeof(icmpstat), kread_counters) != 0)
1124                 return;
1125
1126         xo_open_container(name);
1127         xo_emit("{T:/%s}:\n", name);
1128
1129 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1130         xo_emit(m, icmpstat.f, plural(icmpstat.f))
1131 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1132         xo_emit(m, icmpstat.f)
1133 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1134         xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1135
1136         p(icps_error, "\t{:icmp-calls/%lu} "
1137             "{N:/call%s to icmp_error}\n");
1138         p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1139             "{N:/error%s not generated in response to an icmp message}\n");
1140
1141         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1142                 if (icmpstat.icps_outhist[i] != 0) {
1143                         if (first) {
1144                                 xo_open_list("output-histogram");
1145                                 xo_emit("\tOutput histogram:\n");
1146                                 first = 0;
1147                         }
1148                         xo_open_instance("output-histogram");
1149                         if (icmpnames[i] != NULL)
1150                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1151                                     icmpnames[i], icmpstat.icps_outhist[i]);
1152                         else
1153                                 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1154                                     "{:count/%lu}\n",
1155                                     i, icmpstat.icps_outhist[i]);
1156                         xo_close_instance("output-histogram");
1157                 }
1158         }
1159         if (!first)
1160                 xo_close_list("output-histogram");
1161
1162         p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1163             "{N:/message%s with bad code fields}\n");
1164         p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1165             "{N:/message%s less than the minimum length}\n");
1166         p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1167             "{N:/message%s with bad checksum}\n");
1168         p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1169             "{N:/message%s with bad length}\n");
1170         p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1171             "{N:/multicast echo requests ignored}\n");
1172         p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1173             "{N:/multicast timestamp requests ignored}\n");
1174
1175         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1176                 if (icmpstat.icps_inhist[i] != 0) {
1177                         if (first) {
1178                                 xo_open_list("input-histogram");
1179                                 xo_emit("\tInput histogram:\n");
1180                                 first = 0;
1181                         }
1182                         xo_open_instance("input-histogram");
1183                         if (icmpnames[i] != NULL)
1184                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1185                                         icmpnames[i],
1186                                         icmpstat.icps_inhist[i]);
1187                         else
1188                                 xo_emit(
1189                         "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1190                                         i, icmpstat.icps_inhist[i]);
1191                         xo_close_instance("input-histogram");
1192                 }
1193         }
1194         if (!first)
1195                 xo_close_list("input-histogram");
1196
1197         p(icps_reflect, "\t{:sent-packets/%lu} "
1198             "{N:/message response%s generated}\n");
1199         p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1200             "{N:/invalid return address%s}\n");
1201         p(icps_noroute, "\t{:discard-no-route/%lu} "
1202             "{N:/no return route%s}\n");
1203 #undef p
1204 #undef p1a
1205 #undef p2
1206         if (live) {
1207                 len = sizeof i;
1208                 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1209                     0)
1210                         return;
1211                 xo_emit("\tICMP address mask responses are "
1212                     "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1213         }
1214
1215         xo_close_container(name);
1216 }
1217
1218 /*
1219  * Dump IGMP statistics structure.
1220  */
1221 void
1222 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1223 {
1224         struct igmpstat igmpstat;
1225
1226         if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1227             sizeof(igmpstat), kread) != 0)
1228                 return;
1229
1230         if (igmpstat.igps_version != IGPS_VERSION_3) {
1231                 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1232                     igmpstat.igps_version, IGPS_VERSION_3);
1233         }
1234         if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1235                 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1236                     igmpstat.igps_len, IGPS_VERSION3_LEN);
1237         }
1238
1239         xo_open_container(name);
1240         xo_emit("{T:/%s}:\n", name);
1241
1242 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1243         xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1244 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1245         xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1246
1247         p64(igps_rcv_total, "\t{:received-messages/%ju} "
1248             "{N:/message%s received}\n");
1249         p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1250             "{N:/message%s received with too few bytes}\n");
1251         p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1252             "{N:/message%s received with wrong TTL}\n");
1253         p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1254             "{N:/message%s received with bad checksum}\n");
1255         py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1256             "{N:/V1\\/V2 membership quer%s received}\n");
1257         py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1258             "{N:/V3 membership quer%s received}\n");
1259         py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1260             "{N:/membership quer%s received with invalid field(s)}\n");
1261         py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1262             "{N:/general quer%s received}\n");
1263         py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1264             "{N:/group quer%s received}\n");
1265         py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1266             "{N:/group-source quer%s received}\n");
1267         py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1268             "{N:/group-source quer%s dropped}\n");
1269         p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1270             "{N:/membership report%s received}\n");
1271         p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1272             "{N:/membership report%s received with invalid field(s)}\n");
1273         p64(igps_rcv_ourreports, "\t"
1274             "{:received-membership-reports-matching/%ju} "
1275             "{N:/membership report%s received for groups to which we belong}"
1276             "\n");
1277         p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1278             "{N:/V3 report%s received without Router Alert}\n");
1279         p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1280             "{N:/membership report%s sent}\n");
1281 #undef p64
1282 #undef py64
1283         xo_close_container(name);
1284 }
1285
1286 /*
1287  * Dump PIM statistics structure.
1288  */
1289 void
1290 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1291     int proto __unused)
1292 {
1293         struct pimstat pimstat;
1294
1295         if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1296             sizeof(pimstat), kread_counters) != 0)
1297                 return;
1298
1299         xo_open_container(name);
1300         xo_emit("{T:/%s}:\n", name);
1301
1302 #define p(f, m) if (pimstat.f || sflag <= 1) \
1303         xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1304 #define py(f, m) if (pimstat.f || sflag <= 1) \
1305         xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1306
1307         p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1308             "{N:/message%s received}\n");
1309         p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1310             "{N:/byte%s received}\n");
1311         p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1312             "{N:/message%s received with too few bytes}\n");
1313         p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1314             "{N:/message%s received with bad checksum}\n");
1315         p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1316             "{N:/message%s received with bad version}\n");
1317         p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1318             "{N:/data register message%s received}\n");
1319         p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1320             "{N:/data register byte%s received}\n");
1321         p(pims_rcv_registers_wrongiif, "\t"
1322             "{:received-data-register-wrong-interface/%ju} "
1323             "{N:/data register message%s received on wrong iif}\n");
1324         p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1325             "{N:/bad register%s received}\n");
1326         p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1327             "{N:/data register message%s sent}\n");
1328         p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1329             "{N:/data register byte%s sent}\n");
1330 #undef p
1331 #undef py
1332         xo_close_container(name);
1333 }
1334
1335 #ifdef INET
1336 /*
1337  * Pretty print an Internet address (net address + port).
1338  */
1339 static void
1340 inetprint(const char *container, struct in_addr *in, int port,
1341     const char *proto, int num_port, const int af1)
1342 {
1343         struct servent *sp = 0;
1344         char line[80], *cp;
1345         int width;
1346         size_t alen, plen;
1347
1348         if (container)
1349                 xo_open_container(container);
1350
1351         if (Wflag)
1352             snprintf(line, sizeof(line), "%s.", inetname(in));
1353         else
1354             snprintf(line, sizeof(line), "%.*s.",
1355                 (Aflag && !num_port) ? 12 : 16, inetname(in));
1356         alen = strlen(line);
1357         cp = line + alen;
1358         if (!num_port && port)
1359                 sp = getservbyport((int)port, proto);
1360         if (sp || port == 0)
1361                 snprintf(cp, sizeof(line) - alen,
1362                     "%.15s ", sp ? sp->s_name : "*");
1363         else
1364                 snprintf(cp, sizeof(line) - alen,
1365                     "%d ", ntohs((u_short)port));
1366         width = (Aflag && !Wflag) ? 18 :
1367                 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1368         if (Wflag)
1369                 xo_emit("{d:target/%-*s} ", width, line);
1370         else
1371                 xo_emit("{d:target/%-*.*s} ", width, width, line);
1372
1373         plen = strlen(cp) - 1;
1374         alen--;
1375         xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1376             plen, cp);
1377
1378         if (container)
1379                 xo_close_container(container);
1380 }
1381
1382 /*
1383  * Construct an Internet address representation.
1384  * If numeric_addr has been supplied, give
1385  * numeric value, otherwise try for symbolic name.
1386  */
1387 char *
1388 inetname(struct in_addr *inp)
1389 {
1390         char *cp;
1391         static char line[MAXHOSTNAMELEN];
1392         struct hostent *hp;
1393         struct netent *np;
1394
1395         cp = 0;
1396         if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1397                 int net = inet_netof(*inp);
1398                 int lna = inet_lnaof(*inp);
1399
1400                 if (lna == INADDR_ANY) {
1401                         np = getnetbyaddr(net, AF_INET);
1402                         if (np)
1403                                 cp = np->n_name;
1404                 }
1405                 if (cp == NULL) {
1406                         hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1407                         if (hp) {
1408                                 cp = hp->h_name;
1409                                 trimdomain(cp, strlen(cp));
1410                         }
1411                 }
1412         }
1413         if (inp->s_addr == INADDR_ANY)
1414                 strcpy(line, "*");
1415         else if (cp) {
1416                 strlcpy(line, cp, sizeof(line));
1417         } else {
1418                 inp->s_addr = ntohl(inp->s_addr);
1419 #define C(x)    ((u_int)((x) & 0xff))
1420                 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1421                     C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1422                     C(inp->s_addr >> 8), C(inp->s_addr));
1423         }
1424         return (line);
1425 }
1426 #endif