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