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  * 4. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #if 0
  31 #ifndef lint
  32 static char sccsid[] = "@(#)inet.c      8.5 (Berkeley) 5/24/95";
  33 #endif /* not lint */
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD$");
  38
  39 #include <sys/param.h>
  40 #include <sys/queue.h>
  41 #include <sys/domain.h>
  42 #include <sys/protosw.h>
  43 #include <sys/socket.h>
  44 #include <sys/socketvar.h>
  45 #include <sys/sysctl.h>
  46
  47 #include <net/route.h>
  48 #include <net/if_arp.h>
  49 #include <netinet/in.h>
  50 #include <netinet/in_systm.h>
  51 #include <netinet/ip.h>
  52 #include <netinet/ip_carp.h>
  53 #ifdef INET6
  54 #include <netinet/ip6.h>
  55 #endif /* INET6 */
  56 #include <netinet/in_pcb.h>
  57 #include <netinet/ip_icmp.h>
  58 #include <netinet/icmp_var.h>
  59 #include <netinet/igmp_var.h>
  60 #include <netinet/ip_var.h>
  61 #include <netinet/pim_var.h>
  62 #include <netinet/tcp.h>
  63 #include <netinet/tcpip.h>
  64 #include <netinet/tcp_seq.h>
  65 #define TCPSTATES
  66 #include <netinet/tcp_fsm.h>
  67 #include <netinet/tcp_timer.h>
  68 #include <netinet/tcp_var.h>
  69 #include <netinet/udp.h>
  70 #include <netinet/udp_var.h>
  71
  72 #include <arpa/inet.h>
  73 #include <err.h>
  74 #include <errno.h>
  75 #include <libutil.h>
  76 #include <netdb.h>
  77 #include <stdint.h>
  78 #include <stdio.h>
  79 #include <stdlib.h>
  80 #include <stdbool.h>
  81 #include <string.h>
  82 #include <unistd.h>
  83 #include <libxo/xo.h>
  84 #include "netstat.h"
  85 #include "nl_defs.h"
  86
  87 char    *inetname(struct in_addr *);
  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, int istcp __unused)
  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_qlen = so->so_qlen;
 175         xso->so_incqlen = so->so_incqlen;
 176         xso->so_qlimit = so->so_qlimit;
 177         xso->so_timeo = so->so_timeo;
 178         xso->so_error = so->so_error;
 179         xso->so_oobmark = so->so_oobmark;
 180         sbtoxsockbuf(&so->so_snd, &xso->so_snd);
 181         sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
 182         return (0);
 183 }
 184
 185 static int
 186 pcblist_kvm(u_long off, char **bufp, int istcp)
 187 {
 188         struct inpcbinfo pcbinfo;
 189         struct inpcbhead listhead;
 190         struct inpcb *inp;
 191         struct xinpcb xi;
 192         struct xinpgen xig;
 193         struct xtcpcb xt;
 194         struct socket so;
 195         struct xsocket *xso;
 196         char *buf, *p;
 197         size_t len;
 198
 199         if (off == 0)
 200                 return (0);
 201         kread(off, &pcbinfo, sizeof(pcbinfo));
 202         if (istcp)
 203                 len = 2 * sizeof(xig) +
 204                     (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
 205                     sizeof(struct xtcpcb);
 206         else
 207                 len = 2 * sizeof(xig) +
 208                     (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
 209                     sizeof(struct xinpcb);
 210         if ((buf = malloc(len)) == NULL) {
 211                 xo_warnx("malloc %lu bytes", (u_long)len);
 212                 return (0);
 213         }
 214         p = buf;
 215
 216 #define COPYOUT(obj, size) do {                                         \
 217         if (len < (size)) {                                             \
 218                 xo_warnx("buffer size exceeded");                       \
 219                 goto fail;                                              \
 220         }                                                               \
 221         bcopy((obj), p, (size));                                        \
 222         len -= (size);                                                  \
 223         p += (size);                                                    \
 224 } while (0)
 225
 226 #define KREAD(off, buf, len) do {                                       \
 227         if (kread((uintptr_t)(off), (buf), (len)) != 0)                 \
 228                 goto fail;                                              \
 229 } while (0)
 230
 231         /* Write out header. */
 232         xig.xig_len = sizeof xig;
 233         xig.xig_count = pcbinfo.ipi_count;
 234         xig.xig_gen = pcbinfo.ipi_gencnt;
 235         xig.xig_sogen = 0;
 236         COPYOUT(&xig, sizeof xig);
 237
 238         /* Walk the PCB list. */
 239         xt.xt_len = sizeof xt;
 240         xi.xi_len = sizeof xi;
 241         if (istcp)
 242                 xso = &xt.xt_socket;
 243         else
 244                 xso = &xi.xi_socket;
 245         KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
 246         LIST_FOREACH(inp, &listhead, inp_list) {
 247                 if (istcp) {
 248                         KREAD(inp, &xt.xt_inp, sizeof(*inp));
 249                         inp = &xt.xt_inp;
 250                 } else {
 251                         KREAD(inp, &xi.xi_inp, sizeof(*inp));
 252                         inp = &xi.xi_inp;
 253                 }
 254
 255                 if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
 256                         continue;
 257
 258                 if (istcp) {
 259                         if (inp->inp_ppcb == NULL)
 260                                 bzero(&xt.xt_tp, sizeof xt.xt_tp);
 261                         else if (inp->inp_flags & INP_TIMEWAIT) {
 262                                 bzero(&xt.xt_tp, sizeof xt.xt_tp);
 263                                 xt.xt_tp.t_state = TCPS_TIME_WAIT;
 264                         } else
 265                                 KREAD(inp->inp_ppcb, &xt.xt_tp,
 266                                     sizeof xt.xt_tp);
 267                 }
 268                 if (inp->inp_socket) {
 269                         KREAD(inp->inp_socket, &so, sizeof(so));
 270                         if (sotoxsocket(&so, xso) != 0)
 271                                 goto fail;
 272                 } else {
 273                         bzero(xso, sizeof(*xso));
 274                         if (istcp)
 275                                 xso->xso_protocol = IPPROTO_TCP;
 276                 }
 277                 if (istcp)
 278                         COPYOUT(&xt, sizeof xt);
 279                 else
 280                         COPYOUT(&xi, sizeof xi);
 281         }
 282
 283         /* Reread the pcbinfo and write out the footer. */
 284         kread(off, &pcbinfo, sizeof(pcbinfo));
 285         xig.xig_count = pcbinfo.ipi_count;
 286         xig.xig_gen = pcbinfo.ipi_gencnt;
 287         COPYOUT(&xig, sizeof xig);
 288
 289         *bufp = buf;
 290         return (1);
 291
 292 fail:
 293         free(buf);
 294         return (0);
 295 #undef COPYOUT
 296 #undef KREAD
 297 }
 298
 299 /*
 300  * Print a summary of connections related to an Internet
 301  * protocol.  For TCP, also give state of connection.
 302  * Listening processes (aflag) are suppressed unless the
 303  * -a (all) flag is specified.
 304  */
 305 void
 306 protopr(u_long off, const char *name, int af1, int proto)
 307 {
 308         int istcp;
 309         static int first = 1;
 310         char *buf;
 311         const char *vchar;
 312         struct tcpcb *tp = NULL;
 313         struct inpcb *inp;
 314         struct xinpgen *xig, *oxig;
 315         struct xsocket *so;
 316         struct xtcp_timer *timer;
 317
 318         istcp = 0;
 319         switch (proto) {
 320         case IPPROTO_TCP:
 321 #ifdef INET6
 322                 if (strncmp(name, "sdp", 3) != 0) {
 323                         if (tcp_done != 0)
 324                                 return;
 325                         else
 326                                 tcp_done = 1;
 327                 } else {
 328                         if (sdp_done != 0)
 329                                 return;
 330                         else
 331                                 sdp_done = 1;
 332                 }
 333 #endif
 334                 istcp = 1;
 335                 break;
 336         case IPPROTO_UDP:
 337 #ifdef INET6
 338                 if (udp_done != 0)
 339                         return;
 340                 else
 341                         udp_done = 1;
 342 #endif
 343                 break;
 344         }
 345         if (live) {
 346                 if (!pcblist_sysctl(proto, name, &buf, istcp))
 347                         return;
 348         } else {
 349                 if (!pcblist_kvm(off, &buf, istcp))
 350                         return;
 351         }
 352
 353         oxig = xig = (struct xinpgen *)buf;
 354         for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
 355             xig->xig_len > sizeof(struct xinpgen);
 356             xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
 357                 if (istcp) {
 358                         timer = &((struct xtcpcb *)xig)->xt_timer;
 359                         tp = &((struct xtcpcb *)xig)->xt_tp;
 360                         inp = &((struct xtcpcb *)xig)->xt_inp;
 361                         so = &((struct xtcpcb *)xig)->xt_socket;
 362                 } else {
 363                         inp = &((struct xinpcb *)xig)->xi_inp;
 364                         so = &((struct xinpcb *)xig)->xi_socket;
 365                         timer = NULL;
 366                 }
 367
 368                 /* Ignore sockets for protocols other than the desired one. */
 369                 if (so->xso_protocol != proto)
 370                         continue;
 371
 372                 /* Ignore PCBs which were freed during copyout. */
 373                 if (inp->inp_gencnt > oxig->xig_gen)
 374                         continue;
 375
 376                 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
 377 #ifdef INET6
 378                     || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
 379 #endif /* INET6 */
 380                     || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
 381 #ifdef INET6
 382                                           && (inp->inp_vflag & INP_IPV6) == 0
 383 #endif /* INET6 */
 384                         ))
 385                     )
 386                         continue;
 387                 if (!aflag &&
 388                     (
 389                      (istcp && tp->t_state == TCPS_LISTEN)
 390                      || (af1 == AF_INET &&
 391                       inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 392 #ifdef INET6
 393                      || (af1 == AF_INET6 &&
 394                          IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 395 #endif /* INET6 */
 396                      || (af1 == AF_UNSPEC &&
 397                          (((inp->inp_vflag & INP_IPV4) != 0 &&
 398                            inet_lnaof(inp->inp_laddr) == INADDR_ANY)
 399 #ifdef INET6
 400                           || ((inp->inp_vflag & INP_IPV6) != 0 &&
 401                               IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
 402 #endif
 403                           ))
 404                      ))
 405                         continue;
 406
 407                 if (first) {
 408                         if (!Lflag) {
 409                                 xo_emit("Active Internet connections");
 410                                 if (aflag)
 411                                         xo_emit(" (including servers)");
 412                         } else
 413                                 xo_emit(
 414         "Current listen queue sizes (qlen/incqlen/maxqlen)");
 415                         xo_emit("\n");
 416                         if (Aflag)
 417                                 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
 418                                     "Tcpcb");
 419                         if (Lflag)
 420                                 xo_emit((Aflag && !Wflag) ?
 421                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
 422                                     ((!Wflag || af1 == AF_INET) ?
 423                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
 424                                     "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
 425                                     "Proto", "Listen", "Local Address");
 426                         else if (Tflag)
 427                                 xo_emit((Aflag && !Wflag) ?
 428     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
 429                                     ((!Wflag || af1 == AF_INET) ?
 430     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
 431     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
 432                                     "Proto", "Rexmit", "OOORcv", "0-win",
 433                                     "Local Address", "Foreign Address");
 434                         else {
 435                                 xo_emit((Aflag && !Wflag) ?
 436     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
 437                                     ((!Wflag || af1 == AF_INET) ?
 438     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
 439     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
 440                                     "Proto", "Recv-Q", "Send-Q",
 441                                     "Local Address", "Foreign Address");
 442                                 if (!xflag && !Rflag)
 443                                         xo_emit(" (state)");
 444                         }
 445                         if (xflag) {
 446                                 xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 447                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 448                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
 449                                     "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
 450                                     "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
 451                                     "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
 452                                     "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
 453                                 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
 454                                     "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
 455                                     "rexmt", "persist", "keep", "2msl",
 456                                     "delack", "rcvtime");
 457                         } else if (Rflag) {
 458                                 xo_emit("  {T:/%8.8s} {T:/%5.5s}",
 459                                     "flowid", "ftype");
 460                         }
 461                         xo_emit("\n");
 462                         first = 0;
 463                 }
 464                 if (Lflag && so->so_qlimit == 0)
 465                         continue;
 466                 xo_open_instance("socket");
 467                 if (Aflag) {
 468                         if (istcp)
 469                                 xo_emit("{q:address/%*lx} ",
 470                                     2 * (int)sizeof(void *),
 471                                     (u_long)inp->inp_ppcb);
 472                         else
 473                                 xo_emit("{q:adddress/%*lx} ",
 474                                     2 * (int)sizeof(void *),
 475                                     (u_long)so->so_pcb);
 476                 }
 477 #ifdef INET6
 478                 if ((inp->inp_vflag & INP_IPV6) != 0)
 479                         vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 480                             "46" : "6";
 481                 else
 482 #endif
 483                 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
 484                     "4" : "";
 485                 if (istcp && (tp->t_flags & TF_TOE) != 0)
 486                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
 487                 else
 488                         xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
 489                 if (Lflag) {
 490                         char buf1[33];
 491
 492                         snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
 493                             so->so_incqlen, so->so_qlimit);
 494                         xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
 495                 } else if (Tflag) {
 496                         if (istcp)
 497                                 xo_emit("{:sent-retransmit-packets/%6u} "
 498                                     "{:received-out-of-order-packets/%6u} "
 499                                     "{:sent-zero-window/%6u} ",
 500                                     tp->t_sndrexmitpack, tp->t_rcvoopack,
 501                                     tp->t_sndzerowin);
 502                         else
 503                                 xo_emit("{P:/%21s}", "");
 504                 } else {
 505                         xo_emit("{:receive-bytes-waiting/%6u} "
 506                             "{:send-bytes-waiting/%6u} ",
 507                             so->so_rcv.sb_cc, so->so_snd.sb_cc);
 508                 }
 509                 if (numeric_port) {
 510                         if (inp->inp_vflag & INP_IPV4) {
 511                                 inetprint("local", &inp->inp_laddr,
 512                                     (int)inp->inp_lport, name, 1, af1);
 513                                 if (!Lflag)
 514                                         inetprint("remote", &inp->inp_faddr,
 515                                             (int)inp->inp_fport, name, 1, af1);
 516                         }
 517 #ifdef INET6
 518                         else if (inp->inp_vflag & INP_IPV6) {
 519                                 inet6print("local", &inp->in6p_laddr,
 520                                     (int)inp->inp_lport, name, 1);
 521                                 if (!Lflag)
 522                                         inet6print("remote", &inp->in6p_faddr,
 523                                             (int)inp->inp_fport, name, 1);
 524                         } /* else nothing printed now */
 525 #endif /* INET6 */
 526                 } else if (inp->inp_flags & INP_ANONPORT) {
 527                         if (inp->inp_vflag & INP_IPV4) {
 528                                 inetprint("local", &inp->inp_laddr,
 529                                     (int)inp->inp_lport, name, 1, af1);
 530                                 if (!Lflag)
 531                                         inetprint("remote", &inp->inp_faddr,
 532                                             (int)inp->inp_fport, name, 0, af1);
 533                         }
 534 #ifdef INET6
 535                         else if (inp->inp_vflag & INP_IPV6) {
 536                                 inet6print("local", &inp->in6p_laddr,
 537                                     (int)inp->inp_lport, name, 1);
 538                                 if (!Lflag)
 539                                         inet6print("remote", &inp->in6p_faddr,
 540                                             (int)inp->inp_fport, name, 0);
 541                         } /* else nothing printed now */
 542 #endif /* INET6 */
 543                 } else {
 544                         if (inp->inp_vflag & INP_IPV4) {
 545                                 inetprint("local", &inp->inp_laddr,
 546                                     (int)inp->inp_lport, name, 0, af1);
 547                                 if (!Lflag)
 548                                         inetprint("remote", &inp->inp_faddr,
 549                                             (int)inp->inp_fport, name,
 550                                             inp->inp_lport != inp->inp_fport,
 551                                             af1);
 552                         }
 553 #ifdef INET6
 554                         else if (inp->inp_vflag & INP_IPV6) {
 555                                 inet6print("local", &inp->in6p_laddr,
 556                                     (int)inp->inp_lport, name, 0);
 557                                 if (!Lflag)
 558                                         inet6print("remote", &inp->in6p_faddr,
 559                                             (int)inp->inp_fport, name,
 560                                             inp->inp_lport != inp->inp_fport);
 561                         } /* else nothing printed now */
 562 #endif /* INET6 */
 563                 }
 564                 if (xflag) {
 565                         xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
 566                             "{:receive-clusters/%6u} {:send-clusters/%6u} "
 567                             "{:receive-high-water/%6u} {:send-high-water/%6u} "
 568                             "{:receive-low-water/%6u} {:send-low-water/%6u} "
 569                             "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
 570                             "{:receive-mbuf-bytes-max/%6u} "
 571                             "{:send-mbuf-bytes-max/%6u}",
 572                             so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
 573                             so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
 574                             so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
 575                             so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
 576                             so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
 577                             so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
 578                         if (timer != NULL)
 579                                 xo_emit(" {:retransmit-timer/%4d.%02d} "
 580                                     "{:persist-timer/%4d.%02d} "
 581                                     "{:keepalive-timer/%4d.%02d} "
 582                                     "{:msl2-timer/%4d.%02d} "
 583                                     "{:delay-ack-timer/%4d.%02d} "
 584                                     "{:inactivity-timer/%4d.%02d}",
 585                                     timer->tt_rexmt / 1000,
 586                                     (timer->tt_rexmt % 1000) / 10,
 587                                     timer->tt_persist / 1000,
 588                                     (timer->tt_persist % 1000) / 10,
 589                                     timer->tt_keep / 1000,
 590                                     (timer->tt_keep % 1000) / 10,
 591                                     timer->tt_2msl / 1000,
 592                                     (timer->tt_2msl % 1000) / 10,
 593                                     timer->tt_delack / 1000,
 594                                     (timer->tt_delack % 1000) / 10,
 595                                     timer->t_rcvtime / 1000,
 596                                     (timer->t_rcvtime % 1000) / 10);
 597                 }
 598                 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
 599                         if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
 600                                 xo_emit("{:tcp-state/%d}", tp->t_state);
 601                         else {
 602                                 xo_emit("{:tcp-state/%s}",
 603                                     tcpstates[tp->t_state]);
 604 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
 605                                 /* Show T/TCP `hidden state' */
 606                                 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
 607                                         xo_emit("{:need-syn-or-fin/*}");
 608 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
 609                         }
 610                 }
 611                 if (Rflag) {
 612                         /* XXX: is this right Alfred */
 613                         xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
 614                             inp->inp_flowid,
 615                             inp->inp_flowtype);
 616                 }
 617                 xo_emit("\n");
 618                 xo_close_instance("socket");
 619         }
 620         if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
 621                 if (oxig->xig_count > xig->xig_count) {
 622                         xo_emit("Some {d:lost/%s} sockets may have been "
 623                             "deleted.\n", name);
 624                 } else if (oxig->xig_count < xig->xig_count) {
 625                         xo_emit("Some {d:created/%s} sockets may have been "
 626                             "created.\n", name);
 627                 } else {
 628                         xo_emit("Some {d:changed/%s} sockets may have been "
 629                             "created or deleted.\n", name);
 630                 }
 631         }
 632         free(buf);
 633 }
 634
 635 /*
 636  * Dump TCP statistics structure.
 637  */
 638 void
 639 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 640 {
 641         struct tcpstat tcpstat;
 642         uint64_t tcps_states[TCP_NSTATES];
 643
 644 #ifdef INET6
 645         if (tcp_done != 0)
 646                 return;
 647         else
 648                 tcp_done = 1;
 649 #endif
 650
 651         if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
 652             sizeof(tcpstat), kread_counters) != 0)
 653                 return;
 654
 655         if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
 656             &tcps_states, sizeof(tcps_states), kread_counters) != 0)
 657                 return;
 658
 659         xo_open_container("tcp");
 660         xo_emit("{T:/%s}:\n", name);
 661
 662 #define p(f, m) if (tcpstat.f || sflag <= 1)                            \
 663         xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
 664 #define p1a(f, m) if (tcpstat.f || sflag <= 1)                          \
 665         xo_emit(m, (uintmax_t )tcpstat.f)
 666 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)       \
 667         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 668             (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
 669 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)      \
 670         xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),          \
 671             (uintmax_t )tcpstat.f2)
 672 #define p3(f, m) if (tcpstat.f || sflag <= 1)                           \
 673         xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
 674
 675         p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
 676         p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
 677             "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
 678         p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
 679             "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
 680             "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
 681             "{N:retransmitted}\n");
 682         p(tcps_sndrexmitbad, "\t\t"
 683             "{:sent-unnecessary-retransmitted-packets/%ju} "
 684             "{N:/data packet%s unnecessarily retransmitted}\n");
 685         p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
 686             "{N:/resend%s initiated by MTU discovery}\n");
 687         p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
 688             "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
 689             "{N:delayed})\n");
 690         p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
 691             "{N:/URG only packet%s}\n");
 692         p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
 693             "{N:/window probe packet%s}\n");
 694         p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
 695             "{N:/window update packet%s}\n");
 696         p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
 697             "{N:/control packet%s}\n");
 698         p(tcps_rcvtotal, "\t{:received-packets/%ju} "
 699             "{N:/packet%s received}\n");
 700         p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
 701             "{:received-ack-packets/%ju} {N:/ack%s} "
 702             "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
 703         p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
 704             "{N:/duplicate ack%s}\n");
 705         p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
 706             "{N:/ack%s for unsent data}\n");
 707         p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
 708             "{:received-in-sequence-packets/%ju} {N:/packet%s} "
 709             "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
 710             "{N:received in-sequence}\n");
 711         p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
 712             "{:received-completely-duplicate-packets/%ju} "
 713             "{N:/completely duplicate packet%s} "
 714             "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
 715         p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
 716             "{N:/old duplicate packet%s}\n");
 717         p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
 718             "{:received-some-duplicate-packets/%ju} "
 719             "{N:/packet%s with some dup. data} "
 720             "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
 721         p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
 722             "{N:/out-of-order packet%s} "
 723             "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
 724         p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
 725             "{:received-after-window-packets/%ju} {N:/packet%s} "
 726             "({:received-after-window-bytes/%ju} {N:/byte%s}) "
 727             "{N:of data after window}\n");
 728         p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
 729             "{N:/window probe%s}\n");
 730         p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
 731             "{N:/window update packet%s}\n");
 732         p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
 733             "{N:/packet%s received after close}\n");
 734         p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
 735             "{N:/discarded for bad checksum%s}\n");
 736         p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
 737             "{N:/discarded for bad header offset field%s}\n");
 738         p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
 739             "{N:discarded because packet too short}\n");
 740         p1a(tcps_rcvmemdrop, "\t\t{:discard-memory-problems/%ju} "
 741             "{N:discarded due to memory problems}\n");
 742         p(tcps_connattempt, "\t{:connection-requests/%ju} "
 743             "{N:/connection request%s}\n");
 744         p(tcps_accepts, "\t{:connections-accepts/%ju} "
 745             "{N:/connection accept%s}\n");
 746         p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
 747             "{N:/bad connection attempt%s}\n");
 748         p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
 749             "{N:/listen queue overflow%s}\n");
 750         p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
 751             "{N:/ignored RSTs in the window%s}\n");
 752         p(tcps_connects, "\t{:connections-established/%ju} "
 753             "{N:/connection%s established (including accepts)}\n");
 754         p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
 755             "{N:/time%s used RTT from hostcache}\n");
 756         p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
 757             "{N:/time%s used RTT variance from hostcache}\n");
 758         p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
 759             "{N:/time%s used slow-start threshold from hostcache}\n");
 760         p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
 761             "{N:/connection%s closed (including} "
 762             "{:connection-drops/%ju} {N:/drop%s})\n");
 763         p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
 764             "{N:/connection%s updated cached RTT on close}\n");
 765         p(tcps_cachedrttvar, "\t\t"
 766             "{:connections-updated-variance-on-close/%ju} "
 767             "{N:/connection%s updated cached RTT variance on close}\n");
 768         p(tcps_cachedssthresh, "\t\t"
 769             "{:connections-updated-ssthresh-on-close/%ju} "
 770             "{N:/connection%s updated cached ssthresh on close}\n");
 771         p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
 772             "{N:/embryonic connection%s dropped}\n");
 773         p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
 774             "{N:/segment%s updated rtt (of} "
 775             "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
 776         p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
 777             "{N:/retransmit timeout%s}\n");
 778         p(tcps_timeoutdrop, "\t\t"
 779             "{:connections-dropped-by-retransmit-timeout/%ju} "
 780             "{N:/connection%s dropped by rexmit timeout}\n");
 781         p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
 782             "{N:/persist timeout%s}\n");
 783         p(tcps_persistdrop, "\t\t"
 784             "{:connections-dropped-by-persist-timeout/%ju} "
 785             "{N:/connection%s dropped by persist timeout}\n");
 786         p(tcps_finwait2_drops, "\t"
 787             "{:connections-dropped-by-finwait2-timeout/%ju} "
 788             "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
 789         p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
 790             "{N:/keepalive timeout%s}\n");
 791         p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
 792             "{N:/keepalive probe%s sent}\n");
 793         p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
 794             "{N:/connection%s dropped by keepalive}\n");
 795         p(tcps_predack, "\t{:ack-header-predictions/%ju} "
 796             "{N:/correct ACK header prediction%s}\n");
 797         p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
 798             "{N:/correct data packet header prediction%s}\n");
 799
 800         xo_open_container("syncache");
 801
 802         p3(tcps_sc_added, "\t{:entries-added/%ju} "
 803             "{N:/syncache entr%s added}\n");
 804         p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
 805             "{N:/retransmitted}\n");
 806         p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
 807         p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
 808         p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
 809         p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
 810             "{N:/bucket overflow}\n");
 811         p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
 812             "{N:/cache overflow}\n");
 813         p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
 814         p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
 815         p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
 816         p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
 817         p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
 818         p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
 819         p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
 820         p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
 821             "{N:/cookie%s received}\n");
 822
 823         xo_close_container("syncache");
 824
 825         xo_open_container("hostcache");
 826
 827         p3(tcps_hc_added, "\t{:entries-added/%ju} "
 828             "{N:/hostcache entr%s added}\n");
 829         p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
 830             "{N:/bucket overflow}\n");
 831
 832         xo_close_container("hostcache");
 833
 834         xo_open_container("sack");
 835
 836         p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
 837             "{N:/SACK recovery episode%s}\n");
 838         p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
 839             "{N:/segment rexmit%s in SACK recovery episodes}\n");
 840         p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
 841             "{N:/byte rexmit%s in SACK recovery episodes}\n");
 842         p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
 843             "{N:/SACK option%s (SACK blocks) received}\n");
 844         p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
 845             "{N:/SACK option%s (SACK blocks) sent}\n");
 846         p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
 847             "{N:/SACK scoreboard overflow}\n");
 848
 849         xo_close_container("sack");
 850         xo_open_container("ecn");
 851
 852         p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
 853             "{N:/packet%s with ECN CE bit set}\n");
 854         p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
 855             "{N:/packet%s with ECN ECT(0) bit set}\n");
 856         p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
 857             "{N:/packet%s with ECN ECT(1) bit set}\n");
 858         p(tcps_ecn_shs, "\t{:handshakes/%ju} "
 859             "{N:/successful ECN handshake%s}\n");
 860         p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
 861             "{N:/time%s ECN reduced the congestion window}\n");
 862  #undef p
 863  #undef p1a
 864  #undef p2
 865  #undef p2a
 866  #undef p3
 867         xo_close_container("ecn");
 868
 869         xo_open_container("TCP connection count by state");
 870         xo_emit("{T:/TCP connection count by state}:\n");
 871         for (int i = 0; i < TCP_NSTATES; i++) {
 872                 /*
 873                  * XXXGL: is there a way in libxo to use %s
 874                  * in the "content string" of a format
 875                  * string? I failed to do that, that's why
 876                  * a temporary buffer is used to construct
 877                  * format string for xo_emit().
 878                  */
 879                 char fmtbuf[80];
 880
 881                 if (sflag > 1 && tcps_states[i] == 0)
 882                         continue;
 883                 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
 884                     "{Np:/connection ,connections} in %s state\n",
 885                     tcpstates[i], tcpstates[i]);
 886                 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
 887         }
 888         xo_close_container("TCP connection count by state");
 889
 890         xo_close_container("tcp");
 891 }
 892
 893 /*
 894  * Dump UDP statistics structure.
 895  */
 896 void
 897 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 898 {
 899         struct udpstat udpstat;
 900         uint64_t delivered;
 901
 902 #ifdef INET6
 903         if (udp_done != 0)
 904                 return;
 905         else
 906                 udp_done = 1;
 907 #endif
 908
 909         if (fetch_stats("net.inet.udp.stats", off, &udpstat,
 910             sizeof(udpstat), kread_counters) != 0)
 911                 return;
 912
 913         xo_open_container("udp");
 914         xo_emit("{T:/%s}:\n", name);
 915
 916 #define p(f, m) if (udpstat.f || sflag <= 1) \
 917         xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
 918 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
 919         xo_emit("\t" m, (uintmax_t)udpstat.f)
 920
 921         p(udps_ipackets, "{:received-datagrams/%ju} "
 922             "{N:/datagram%s received}\n");
 923         p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
 924             "{N:/with incomplete header}\n");
 925         p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
 926             "{N:/with bad data length field}\n");
 927         p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
 928             "{N:/with bad checksum}\n");
 929         p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
 930             "{N:/with no checksum}\n");
 931         p1a(udps_noport, "{:dropped-no-socket/%ju} "
 932             "{N:/dropped due to no socket}\n");
 933         p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
 934             "{N:/broadcast\\/multicast datagram%s undelivered}\n");
 935         p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
 936             "{N:/dropped due to full socket buffers}\n");
 937         p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
 938             "{N:/not for hashed pcb}\n");
 939         delivered = udpstat.udps_ipackets -
 940                     udpstat.udps_hdrops -
 941                     udpstat.udps_badlen -
 942                     udpstat.udps_badsum -
 943                     udpstat.udps_noport -
 944                     udpstat.udps_noportbcast -
 945                     udpstat.udps_fullsock;
 946         if (delivered || sflag <= 1)
 947                 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
 948                     (uint64_t)delivered);
 949         p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
 950         /* the next statistic is cumulative in udps_noportbcast */
 951         p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
 952             "{N:/time%s multicast source filter matched}\n");
 953 #undef p
 954 #undef p1a
 955         xo_close_container("udp");
 956 }
 957
 958 /*
 959  * Dump CARP statistics structure.
 960  */
 961 void
 962 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
 963 {
 964         struct carpstats carpstat;
 965
 966         if (fetch_stats("net.inet.carp.stats", off, &carpstat,
 967             sizeof(carpstat), kread_counters) != 0)
 968                 return;
 969
 970         xo_open_container(name);
 971         xo_emit("{T:/%s}:\n", name);
 972
 973 #define p(f, m) if (carpstat.f || sflag <= 1) \
 974         xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
 975 #define p2(f, m) if (carpstat.f || sflag <= 1) \
 976         xo_emit(m, (uintmax_t)carpstat.f)
 977
 978         p(carps_ipackets, "\t{:received-inet-packets/%ju} "
 979             "{N:/packet%s received (IPv4)}\n");
 980         p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
 981             "{N:/packet%s received (IPv6)}\n");
 982         p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
 983             "{N:/packet%s discarded for wrong TTL}\n");
 984         p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
 985             "{N:/packet%s shorter than header}\n");
 986         p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
 987             "{N:/discarded for bad checksum%s}\n");
 988         p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
 989             "{N:/discarded packet%s with a bad version}\n");
 990         p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
 991             "{N:/discarded because packet too short}\n");
 992         p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
 993             "{N:/discarded for bad authentication}\n");
 994         p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
 995             "{N:/discarded for bad vhid}\n");
 996         p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
 997             "{N:/discarded because of a bad address list}\n");
 998         p(carps_opackets, "\t{:sent-inet-packets/%ju} "
 999             "{N:/packet%s sent (IPv4)}\n");
1000         p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
1001             "{N:/packet%s sent (IPv6)}\n");
1002         p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
1003             "{N:/send failed due to mbuf memory error}\n");
1004 #if notyet
1005         p(carps_ostates, "\t\t{:send-state-updates/%s} "
1006             "{N:/state update%s sent}\n");
1007 #endif
1008 #undef p
1009 #undef p2
1010         xo_close_container(name);
1011 }
1012
1013 /*
1014  * Dump IP statistics structure.
1015  */
1016 void
1017 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1018 {
1019         struct ipstat ipstat;
1020
1021         if (fetch_stats("net.inet.ip.stats", off, &ipstat,
1022             sizeof(ipstat), kread_counters) != 0)
1023                 return;
1024
1025         xo_open_container(name);
1026         xo_emit("{T:/%s}:\n", name);
1027
1028 #define p(f, m) if (ipstat.f || sflag <= 1) \
1029         xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
1030 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
1031         xo_emit(m, (uintmax_t )ipstat.f)
1032
1033         p(ips_total, "\t{:received-packets/%ju} "
1034             "{N:/total packet%s received}\n");
1035         p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
1036             "{N:/bad header checksum%s}\n");
1037         p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
1038             "{N:/with size smaller than minimum}\n");
1039         p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
1040             "{N:/with data size < data length}\n");
1041         p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
1042             "{N:/with ip length > max ip packet size}\n");
1043         p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
1044             "{N:/with header length < data size}\n");
1045         p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
1046             "{N:/with data length < header length}\n");
1047         p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
1048             "{N:/with bad options}\n");
1049         p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
1050             "{N:/with incorrect version number}\n");
1051         p(ips_fragments, "\t{:received-fragments/%ju} "
1052             "{N:/fragment%s received}\n");
1053         p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
1054             "{N:/fragment%s dropped (dup or out of space)}\n");
1055         p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
1056             "{N:/fragment%s dropped after timeout}\n");
1057         p(ips_reassembled, "\t{:reassembled-packets/%ju} "
1058             "{N:/packet%s reassembled ok}\n");
1059         p(ips_delivered, "\t{:received-local-packets/%ju} "
1060             "{N:/packet%s for this host}\n");
1061         p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
1062             "{N:/packet%s for unknown\\/unsupported protocol}\n");
1063         p(ips_forward, "\t{:forwarded-packets/%ju} "
1064             "{N:/packet%s forwarded}");
1065         p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
1066             "{N:/packet%s fast forwarded})");
1067         if (ipstat.ips_forward || sflag <= 1)
1068                 xo_emit("\n");
1069         p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
1070             "{N:/packet%s not forwardable}\n");
1071         p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1072             "{N:/packet%s received for unknown multicast group}\n");
1073         p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1074             "{N:/redirect%s sent}\n");
1075         p(ips_localout, "\t{:sent-packets/%ju} "
1076             "{N:/packet%s sent from this host}\n");
1077         p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1078             "{N:/packet%s sent with fabricated ip header}\n");
1079         p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1080             "{N:/output packet%s dropped due to no bufs, etc.}\n");
1081         p(ips_noroute, "\t{:discard-no-route/%ju} "
1082             "{N:/output packet%s discarded due to no route}\n");
1083         p(ips_fragmented, "\t{:sent-fragments/%ju} "
1084             "{N:/output datagram%s fragmented}\n");
1085         p(ips_ofragments, "\t{:fragments-created/%ju} "
1086             "{N:/fragment%s created}\n");
1087         p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1088             "{N:/datagram%s that can't be fragmented}\n");
1089         p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1090             "{N:/tunneling packet%s that can't find gif}\n");
1091         p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1092             "{N:/datagram%s with bad address in header}\n");
1093 #undef p
1094 #undef p1a
1095         xo_close_container(name);
1096 }
1097
1098 /*
1099  * Dump ARP statistics structure.
1100  */
1101 void
1102 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1103 {
1104         struct arpstat arpstat;
1105
1106         if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1107             sizeof(arpstat), kread_counters) != 0)
1108                 return;
1109
1110         xo_open_container(name);
1111         xo_emit("{T:/%s}:\n", name);
1112
1113 #define p(f, m) if (arpstat.f || sflag <= 1) \
1114         xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1115 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1116         xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1117
1118         p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1119         p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1120         p(rxrequests, "{:received-requests/%ju} "
1121             "{N:/ARP request%s received}\n");
1122         p2(rxreplies, "{:received-replies/%ju} "
1123             "{N:/ARP repl%s received}\n");
1124         p(received, "{:received-packers/%ju} "
1125             "{N:/ARP packet%s received}\n");
1126         p(dropped, "{:dropped-no-entry/%ju} "
1127             "{N:/total packet%s dropped due to no ARP entry}\n");
1128         p(timeouts, "{:entries-timeout/%ju} "
1129             "{N:/ARP entry%s timed out}\n");
1130         p(dupips, "{:dropped-duplicate-address/%ju} "
1131             "{N:/Duplicate IP%s seen}\n");
1132 #undef p
1133 #undef p2
1134         xo_close_container(name);
1135 }
1136
1137
1138
1139 static  const char *icmpnames[ICMP_MAXTYPE + 1] = {
1140         "echo reply",                   /* RFC 792 */
1141         "#1",
1142         "#2",
1143         "destination unreachable",      /* RFC 792 */
1144         "source quench",                /* RFC 792 */
1145         "routing redirect",             /* RFC 792 */
1146         "#6",
1147         "#7",
1148         "echo",                         /* RFC 792 */
1149         "router advertisement",         /* RFC 1256 */
1150         "router solicitation",          /* RFC 1256 */
1151         "time exceeded",                /* RFC 792 */
1152         "parameter problem",            /* RFC 792 */
1153         "time stamp",                   /* RFC 792 */
1154         "time stamp reply",             /* RFC 792 */
1155         "information request",          /* RFC 792 */
1156         "information request reply",    /* RFC 792 */
1157         "address mask request",         /* RFC 950 */
1158         "address mask reply",           /* RFC 950 */
1159         "#19",
1160         "#20",
1161         "#21",
1162         "#22",
1163         "#23",
1164         "#24",
1165         "#25",
1166         "#26",
1167         "#27",
1168         "#28",
1169         "#29",
1170         "icmp traceroute",              /* RFC 1393 */
1171         "datagram conversion error",    /* RFC 1475 */
1172         "mobile host redirect",
1173         "IPv6 where-are-you",
1174         "IPv6 i-am-here",
1175         "mobile registration req",
1176         "mobile registration reply",
1177         "domain name request",          /* RFC 1788 */
1178         "domain name reply",            /* RFC 1788 */
1179         "icmp SKIP",
1180         "icmp photuris",                /* RFC 2521 */
1181 };
1182
1183 /*
1184  * Dump ICMP statistics.
1185  */
1186 void
1187 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1188 {
1189         struct icmpstat icmpstat;
1190         size_t len;
1191         int i, first;
1192
1193         if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1194             sizeof(icmpstat), kread_counters) != 0)
1195                 return;
1196
1197         xo_open_container(name);
1198         xo_emit("{T:/%s}:\n", name);
1199
1200 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1201         xo_emit(m, icmpstat.f, plural(icmpstat.f))
1202 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1203         xo_emit(m, icmpstat.f)
1204 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1205         xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1206
1207         p(icps_error, "\t{:icmp-calls/%lu} "
1208             "{N:/call%s to icmp_error}\n");
1209         p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1210             "{N:/error%s not generated in response to an icmp message}\n");
1211
1212         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1213                 if (icmpstat.icps_outhist[i] != 0) {
1214                         if (first) {
1215                                 xo_open_list("output-histogram");
1216                                 xo_emit("\tOutput histogram:\n");
1217                                 first = 0;
1218                         }
1219                         xo_open_instance("output-histogram");
1220                         if (icmpnames[i] != NULL)
1221                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1222                                     icmpnames[i], icmpstat.icps_outhist[i]);
1223                         else
1224                                 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1225                                     "{:count/%lu}\n",
1226                                     i, icmpstat.icps_outhist[i]);
1227                         xo_close_instance("output-histogram");
1228                 }
1229         }
1230         if (!first)
1231                 xo_close_list("output-histogram");
1232
1233         p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1234             "{N:/message%s with bad code fields}\n");
1235         p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1236             "{N:/message%s less than the minimum length}\n");
1237         p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1238             "{N:/message%s with bad checksum}\n");
1239         p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1240             "{N:/message%s with bad length}\n");
1241         p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1242             "{N:/multicast echo requests ignored}\n");
1243         p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1244             "{N:/multicast timestamp requests ignored}\n");
1245
1246         for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1247                 if (icmpstat.icps_inhist[i] != 0) {
1248                         if (first) {
1249                                 xo_open_list("input-histogram");
1250                                 xo_emit("\tInput histogram:\n");
1251                                 first = 0;
1252                         }
1253                         xo_open_instance("input-histogram");
1254                         if (icmpnames[i] != NULL)
1255                                 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1256                                         icmpnames[i],
1257                                         icmpstat.icps_inhist[i]);
1258                         else
1259                                 xo_emit(
1260                         "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1261                                         i, icmpstat.icps_inhist[i]);
1262                         xo_close_instance("input-histogram");
1263                 }
1264         }
1265         if (!first)
1266                 xo_close_list("input-histogram");
1267
1268         p(icps_reflect, "\t{:sent-packets/%lu} "
1269             "{N:/message response%s generated}\n");
1270         p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1271             "{N:/invalid return address%s}\n");
1272         p(icps_noroute, "\t{:discard-no-route/%lu} "
1273             "{N:/no return route%s}\n");
1274 #undef p
1275 #undef p1a
1276 #undef p2
1277         if (live) {
1278                 len = sizeof i;
1279                 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1280                     0)
1281                         return;
1282                 xo_emit("\tICMP address mask responses are "
1283                     "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1284         }
1285
1286         xo_close_container(name);
1287 }
1288
1289 /*
1290  * Dump IGMP statistics structure.
1291  */
1292 void
1293 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1294 {
1295         struct igmpstat igmpstat;
1296
1297         if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1298             sizeof(igmpstat), kread) != 0)
1299                 return;
1300
1301         if (igmpstat.igps_version != IGPS_VERSION_3) {
1302                 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1303                     igmpstat.igps_version, IGPS_VERSION_3);
1304         }
1305         if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1306                 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1307                     igmpstat.igps_len, IGPS_VERSION3_LEN);
1308         }
1309
1310         xo_open_container(name);
1311         xo_emit("{T:/%s}:\n", name);
1312
1313 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1314         xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1315 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1316         xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1317
1318         p64(igps_rcv_total, "\t{:received-messages/%ju} "
1319             "{N:/message%s received}\n");
1320         p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1321             "{N:/message%s received with too few bytes}\n");
1322         p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1323             "{N:/message%s received with wrong TTL}\n");
1324         p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1325             "{N:/message%s received with bad checksum}\n");
1326         py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1327             "{N:/V1\\/V2 membership quer%s received}\n");
1328         py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1329             "{N:/V3 membership quer%s received}\n");
1330         py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1331             "{N:/membership quer%s received with invalid field(s)}\n");
1332         py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1333             "{N:/general quer%s received}\n");
1334         py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1335             "{N:/group quer%s received}\n");
1336         py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1337             "{N:/group-source quer%s received}\n");
1338         py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1339             "{N:/group-source quer%s dropped}\n");
1340         p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1341             "{N:/membership report%s received}\n");
1342         p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1343             "{N:/membership report%s received with invalid field(s)}\n");
1344         p64(igps_rcv_ourreports, "\t"
1345             "{:received-membership-reports-matching/%ju} "
1346             "{N:/membership report%s received for groups to which we belong}"
1347             "\n");
1348         p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1349             "{N:/V3 report%s received without Router Alert}\n");
1350         p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1351             "{N:/membership report%s sent}\n");
1352 #undef p64
1353 #undef py64
1354         xo_close_container(name);
1355 }
1356
1357 /*
1358  * Dump PIM statistics structure.
1359  */
1360 void
1361 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1362     int proto __unused)
1363 {
1364         struct pimstat pimstat;
1365
1366         if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1367             sizeof(pimstat), kread_counters) != 0)
1368                 return;
1369
1370         xo_open_container(name);
1371         xo_emit("{T:/%s}:\n", name);
1372
1373 #define p(f, m) if (pimstat.f || sflag <= 1) \
1374         xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1375 #define py(f, m) if (pimstat.f || sflag <= 1) \
1376         xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1377
1378         p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1379             "{N:/message%s received}\n");
1380         p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1381             "{N:/byte%s received}\n");
1382         p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1383             "{N:/message%s received with too few bytes}\n");
1384         p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1385             "{N:/message%s received with bad checksum}\n");
1386         p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1387             "{N:/message%s received with bad version}\n");
1388         p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1389             "{N:/data register message%s received}\n");
1390         p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1391             "{N:/data register byte%s received}\n");
1392         p(pims_rcv_registers_wrongiif, "\t"
1393             "{:received-data-register-wrong-interface/%ju} "
1394             "{N:/data register message%s received on wrong iif}\n");
1395         p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1396             "{N:/bad register%s received}\n");
1397         p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1398             "{N:/data register message%s sent}\n");
1399         p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1400             "{N:/data register byte%s sent}\n");
1401 #undef p
1402 #undef py
1403         xo_close_container(name);
1404 }
1405
1406 /*
1407  * Pretty print an Internet address (net address + port).
1408  */
1409 void
1410 inetprint(const char *container, struct in_addr *in, int port,
1411     const char *proto, int num_port, const int af1)
1412 {
1413         struct servent *sp = 0;
1414         char line[80], *cp;
1415         int width;
1416
1417         if (container)
1418                 xo_open_container(container);
1419
1420         if (Wflag)
1421             sprintf(line, "%s.", inetname(in));
1422         else
1423             sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1424         cp = strchr(line, '\0');
1425         if (!num_port && port)
1426                 sp = getservbyport((int)port, proto);
1427         if (sp || port == 0)
1428                 sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1429         else
1430                 sprintf(cp, "%d ", ntohs((u_short)port));
1431         width = (Aflag && !Wflag) ? 18 :
1432                 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1433         if (Wflag)
1434                 xo_emit("{d:target/%-*s} ", width, line);
1435         else
1436                 xo_emit("{d:target/%-*.*s} ", width, width, line);
1437
1438         int alen = cp - line - 1, plen = strlen(cp) - 1;
1439         xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1440             plen, cp);
1441
1442         if (container)
1443                 xo_close_container(container);
1444 }
1445
1446 /*
1447  * Construct an Internet address representation.
1448  * If numeric_addr has been supplied, give
1449  * numeric value, otherwise try for symbolic name.
1450  */
1451 char *
1452 inetname(struct in_addr *inp)
1453 {
1454         char *cp;
1455         static char line[MAXHOSTNAMELEN];
1456         struct hostent *hp;
1457         struct netent *np;
1458
1459         cp = 0;
1460         if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1461                 int net = inet_netof(*inp);
1462                 int lna = inet_lnaof(*inp);
1463
1464                 if (lna == INADDR_ANY) {
1465                         np = getnetbyaddr(net, AF_INET);
1466                         if (np)
1467                                 cp = np->n_name;
1468                 }
1469                 if (cp == NULL) {
1470                         hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1471                         if (hp) {
1472                                 cp = hp->h_name;
1473                                 trimdomain(cp, strlen(cp));
1474                         }
1475                 }
1476         }
1477         if (inp->s_addr == INADDR_ANY)
1478                 strcpy(line, "*");
1479         else if (cp) {
1480                 strlcpy(line, cp, sizeof(line));
1481         } else {
1482                 inp->s_addr = ntohl(inp->s_addr);
1483 #define C(x)    ((u_int)((x) & 0xff))
1484                 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1485                     C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
1486         }
1487         return (line);
1488 }