2 * Copyright (c) 1983, 1988, 1993, 1995
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
43 #include <sys/param.h>
44 #include <sys/queue.h>
45 #include <sys/domain.h>
46 #include <sys/protosw.h>
47 #include <sys/socket.h>
48 #include <sys/socketvar.h>
49 #include <sys/sysctl.h>
51 #include <net/route.h>
52 #include <net/if_arp.h>
53 #include <netinet/in.h>
54 #include <netinet/in_systm.h>
55 #include <netinet/ip.h>
56 #include <netinet/ip_carp.h>
58 #include <netinet/ip6.h>
60 #include <netinet/in_pcb.h>
61 #include <netinet/ip_icmp.h>
62 #include <netinet/icmp_var.h>
63 #include <netinet/igmp_var.h>
64 #include <netinet/ip_var.h>
65 #include <netinet/pim_var.h>
66 #include <netinet/tcp.h>
67 #include <netinet/tcpip.h>
68 #include <netinet/tcp_seq.h>
70 #include <netinet/tcp_fsm.h>
71 #include <netinet/tcp_timer.h>
72 #include <netinet/tcp_var.h>
73 #include <netinet/tcp_debug.h>
74 #include <netinet/udp.h>
75 #include <netinet/udp_var.h>
77 #include <arpa/inet.h>
89 char *inetname(struct in_addr *);
90 void inetprint(struct in_addr *, int, const char *, int);
92 static int udp_done, tcp_done;
96 pcblist_sysctl(int proto, char **bufp, int istcp)
104 mibvar = "net.inet.tcp.pcblist";
107 mibvar = "net.inet.udp.pcblist";
110 mibvar = "net.inet.divert.pcblist";
113 mibvar = "net.inet.raw.pcblist";
118 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
120 warn("sysctl: %s", mibvar);
123 if ((buf = malloc(len)) == 0) {
124 warnx("malloc %lu bytes", (u_long)len);
127 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
128 warn("sysctl: %s", mibvar);
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.
141 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
143 xsb->sb_cc = sb->sb_cc;
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;
155 sotoxsocket(struct socket *so, struct xsocket *xso)
157 struct protosw proto;
158 struct domain domain;
160 bzero(xso, sizeof *xso);
161 xso->xso_len = sizeof *xso;
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)
170 xso->xso_protocol = proto.pr_protocol;
171 if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
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);
186 pcblist_kvm(u_long off, char **bufp, int istcp)
188 struct inpcbinfo pcbinfo;
189 struct inpcbhead listhead;
201 kread(off, &pcbinfo, sizeof(pcbinfo));
203 len = 2 * sizeof(xig) +
204 (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
205 sizeof(struct xtcpcb);
207 len = 2 * sizeof(xig) +
208 (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
209 sizeof(struct xinpcb);
210 if ((buf = malloc(len)) == 0) {
211 warnx("malloc %lu bytes", (u_long)len);
216 #define COPYOUT(obj, size) do { \
217 if (len < (size)) { \
218 warnx("buffer size exceeded"); \
221 bcopy((obj), p, (size)); \
226 #define KREAD(off, buf, len) do { \
227 if (kread((uintptr_t)(off), (buf), (len)) != 0) \
231 /* Write out header. */
232 xig.xig_len = sizeof xig;
233 xig.xig_count = pcbinfo.ipi_count;
234 xig.xig_gen = pcbinfo.ipi_gencnt;
236 COPYOUT(&xig, sizeof xig);
238 /* Walk the PCB list. */
239 xt.xt_len = sizeof xt;
240 xi.xi_len = sizeof xi;
245 KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
246 LIST_FOREACH(inp, &listhead, inp_list) {
248 KREAD(inp, &xt.xt_inp, sizeof(*inp));
251 KREAD(inp, &xi.xi_inp, sizeof(*inp));
255 if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
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;
265 KREAD(inp->inp_ppcb, &xt.xt_tp,
268 if (inp->inp_socket) {
269 KREAD(inp->inp_socket, &so, sizeof(so));
270 if (sotoxsocket(&so, xso) != 0)
273 bzero(xso, sizeof(*xso));
275 xso->xso_protocol = IPPROTO_TCP;
278 COPYOUT(&xt, sizeof xt);
280 COPYOUT(&xi, sizeof xi);
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);
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.
306 protopr(u_long off, const char *name, int af1, int proto)
309 static int first = 1;
312 struct tcpcb *tp = NULL;
314 struct xinpgen *xig, *oxig;
338 if (!pcblist_sysctl(proto, &buf, istcp))
341 if (!pcblist_kvm(off, &buf, istcp))
345 oxig = xig = (struct xinpgen *)buf;
346 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
347 xig->xig_len > sizeof(struct xinpgen);
348 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
350 tp = &((struct xtcpcb *)xig)->xt_tp;
351 inp = &((struct xtcpcb *)xig)->xt_inp;
352 so = &((struct xtcpcb *)xig)->xt_socket;
354 inp = &((struct xinpcb *)xig)->xi_inp;
355 so = &((struct xinpcb *)xig)->xi_socket;
358 /* Ignore sockets for protocols other than the desired one. */
359 if (so->xso_protocol != proto)
362 /* Ignore PCBs which were freed during copyout. */
363 if (inp->inp_gencnt > oxig->xig_gen)
366 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
368 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
370 || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
372 && (inp->inp_vflag & INP_IPV6) == 0
379 (istcp && tp->t_state == TCPS_LISTEN)
380 || (af1 == AF_INET &&
381 inet_lnaof(inp->inp_laddr) == INADDR_ANY)
383 || (af1 == AF_INET6 &&
384 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
386 || (af1 == AF_UNSPEC &&
387 (((inp->inp_vflag & INP_IPV4) != 0 &&
388 inet_lnaof(inp->inp_laddr) == INADDR_ANY)
390 || ((inp->inp_vflag & INP_IPV6) != 0 &&
391 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
399 printf("Active Internet connections");
401 printf(" (including servers)");
404 "Current listen queue sizes (qlen/incqlen/maxqlen)");
407 printf("%-8.8s ", "Tcpcb");
409 printf("%-5.5s %-14.14s %-22.22s\n",
410 "Proto", "Listen", "Local Address");
412 printf((Aflag && !Wflag) ?
413 "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" :
414 "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s",
415 "Proto", "Recv-Q", "Send-Q",
416 "Local Address", "Foreign Address");
418 printf("%-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %s\n",
419 "R-MBUF", "S-MBUF", "R-CLUS",
420 "S-CLUS", "R-HIWA", "S-HIWA",
421 "R-LOWA", "S-LOWA", "R-BCNT",
422 "S-BCNT", "R-BMAX", "S-BMAX",
429 if (Lflag && so->so_qlimit == 0)
433 printf("%8lx ", (u_long)inp->inp_ppcb);
435 printf("%8lx ", (u_long)so->so_pcb);
438 if ((inp->inp_vflag & INP_IPV6) != 0)
439 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
443 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
445 printf("%-3.3s%-2.2s ", name, vchar);
449 snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
450 so->so_incqlen, so->so_qlimit);
451 printf("%-14.14s ", buf1);
453 printf("%6u %6u ", so->so_rcv.sb_cc, so->so_snd.sb_cc);
456 if (inp->inp_vflag & INP_IPV4) {
457 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
460 inetprint(&inp->inp_faddr,
461 (int)inp->inp_fport, name, 1);
464 else if (inp->inp_vflag & INP_IPV6) {
465 inet6print(&inp->in6p_laddr,
466 (int)inp->inp_lport, name, 1);
468 inet6print(&inp->in6p_faddr,
469 (int)inp->inp_fport, name, 1);
470 } /* else nothing printed now */
472 } else if (inp->inp_flags & INP_ANONPORT) {
473 if (inp->inp_vflag & INP_IPV4) {
474 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
477 inetprint(&inp->inp_faddr,
478 (int)inp->inp_fport, name, 0);
481 else if (inp->inp_vflag & INP_IPV6) {
482 inet6print(&inp->in6p_laddr,
483 (int)inp->inp_lport, name, 1);
485 inet6print(&inp->in6p_faddr,
486 (int)inp->inp_fport, name, 0);
487 } /* else nothing printed now */
490 if (inp->inp_vflag & INP_IPV4) {
491 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
494 inetprint(&inp->inp_faddr,
495 (int)inp->inp_fport, name,
496 inp->inp_lport != inp->inp_fport);
499 else if (inp->inp_vflag & INP_IPV6) {
500 inet6print(&inp->in6p_laddr,
501 (int)inp->inp_lport, name, 0);
503 inet6print(&inp->in6p_faddr,
504 (int)inp->inp_fport, name,
505 inp->inp_lport != inp->inp_fport);
506 } /* else nothing printed now */
511 printf("%21s %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
513 so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
514 so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
515 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
516 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
517 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
518 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
520 printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
521 so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
522 so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
523 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
524 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
525 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
526 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
528 if (istcp && !Lflag) {
529 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
530 printf("%d", tp->t_state);
532 printf("%s", tcpstates[tp->t_state]);
533 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
534 /* Show T/TCP `hidden state' */
535 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
537 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
542 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
543 if (oxig->xig_count > xig->xig_count) {
544 printf("Some %s sockets may have been deleted.\n",
546 } else if (oxig->xig_count < xig->xig_count) {
547 printf("Some %s sockets may have been created.\n",
551 "Some %s sockets may have been created or deleted.\n",
559 * Dump TCP statistics structure.
562 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
564 struct tcpstat tcpstat, zerostat;
565 size_t len = sizeof tcpstat;
576 memset(&zerostat, 0, len);
577 if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len,
578 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
579 warn("sysctl: net.inet.tcp.stats");
583 kread(off, &tcpstat, len);
585 printf ("%s:\n", name);
587 #define p(f, m) if (tcpstat.f || sflag <= 1) \
588 printf(m, tcpstat.f, plural(tcpstat.f))
589 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
591 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
592 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
593 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
594 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2)
595 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
596 printf(m, tcpstat.f, pluralies(tcpstat.f))
598 p(tcps_sndtotal, "\t%lu packet%s sent\n");
599 p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n");
600 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
601 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n");
603 "\t\t%lu data packet%s unnecessarily retransmitted\n");
604 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n");
605 p2a(tcps_sndacks, tcps_delack,
606 "\t\t%lu ack-only packet%s (%lu delayed)\n");
607 p(tcps_sndurg, "\t\t%lu URG only packet%s\n");
608 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n");
609 p(tcps_sndwinup, "\t\t%lu window update packet%s\n");
610 p(tcps_sndctrl, "\t\t%lu control packet%s\n");
611 p(tcps_rcvtotal, "\t%lu packet%s received\n");
612 p2(tcps_rcvackpack, tcps_rcvackbyte,
613 "\t\t%lu ack%s (for %lu byte%s)\n");
614 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n");
615 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n");
616 p2(tcps_rcvpack, tcps_rcvbyte,
617 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n");
618 p2(tcps_rcvduppack, tcps_rcvdupbyte,
619 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n");
620 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n");
621 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
622 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n");
623 p2(tcps_rcvoopack, tcps_rcvoobyte,
624 "\t\t%lu out-of-order packet%s (%lu byte%s)\n");
625 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
626 "\t\t%lu packet%s (%lu byte%s) of data after window\n");
627 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n");
628 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n");
629 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n");
630 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n");
631 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n");
632 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n");
633 p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\n");
634 p(tcps_connattempt, "\t%lu connection request%s\n");
635 p(tcps_accepts, "\t%lu connection accept%s\n");
636 p(tcps_badsyn, "\t%lu bad connection attempt%s\n");
637 p(tcps_listendrop, "\t%lu listen queue overflow%s\n");
638 p(tcps_badrst, "\t%lu ignored RSTs in the window%s\n");
639 p(tcps_connects, "\t%lu connection%s established (including accepts)\n");
640 p2(tcps_closed, tcps_drops,
641 "\t%lu connection%s closed (including %lu drop%s)\n");
642 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n");
644 "\t\t%lu connection%s updated cached RTT variance on close\n");
645 p(tcps_cachedssthresh,
646 "\t\t%lu connection%s updated cached ssthresh on close\n");
647 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n");
648 p2(tcps_rttupdated, tcps_segstimed,
649 "\t%lu segment%s updated rtt (of %lu attempt%s)\n");
650 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n");
651 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n");
652 p(tcps_persisttimeo, "\t%lu persist timeout%s\n");
653 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n");
654 p(tcps_finwait2_drops,
655 "\t%lu Connection%s (fin_wait_2) dropped because of timeout\n");
656 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n");
657 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n");
658 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n");
659 p(tcps_predack, "\t%lu correct ACK header prediction%s\n");
660 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n");
662 p3(tcps_sc_added, "\t%lu syncache entr%s added\n");
663 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n");
664 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n");
665 p1a(tcps_sc_dropped, "\t\t%lu dropped\n");
666 p1a(tcps_sc_completed, "\t\t%lu completed\n");
667 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n");
668 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n");
669 p1a(tcps_sc_reset, "\t\t%lu reset\n");
670 p1a(tcps_sc_stale, "\t\t%lu stale\n");
671 p1a(tcps_sc_aborted, "\t\t%lu aborted\n");
672 p1a(tcps_sc_badack, "\t\t%lu badack\n");
673 p1a(tcps_sc_unreach, "\t\t%lu unreach\n");
674 p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n");
675 p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n");
676 p(tcps_sc_recvcookie, "\t%lu cookie%s received\n");
678 p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n");
680 "\t%lu segment rexmit%s in SACK recovery episodes\n");
681 p(tcps_sack_rexmit_bytes,
682 "\t%lu byte rexmit%s in SACK recovery episodes\n");
683 p(tcps_sack_rcv_blocks,
684 "\t%lu SACK option%s (SACK blocks) received\n");
685 p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n");
686 p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n");
688 p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n");
689 p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n");
690 p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n");
691 p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n");
692 p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n");
701 * Dump UDP statistics structure.
704 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
706 struct udpstat udpstat, zerostat;
707 size_t len = sizeof udpstat;
719 memset(&zerostat, 0, len);
720 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len,
721 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
722 warn("sysctl: net.inet.udp.stats");
726 kread(off, &udpstat, len);
728 printf("%s:\n", name);
729 #define p(f, m) if (udpstat.f || sflag <= 1) \
730 printf(m, udpstat.f, plural(udpstat.f))
731 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
733 p(udps_ipackets, "\t%lu datagram%s received\n");
734 p1a(udps_hdrops, "\t%lu with incomplete header\n");
735 p1a(udps_badlen, "\t%lu with bad data length field\n");
736 p1a(udps_badsum, "\t%lu with bad checksum\n");
737 p1a(udps_nosum, "\t%lu with no checksum\n");
738 p1a(udps_noport, "\t%lu dropped due to no socket\n");
740 "\t%lu broadcast/multicast datagram%s undelivered\n");
741 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n");
742 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n");
743 delivered = udpstat.udps_ipackets -
744 udpstat.udps_hdrops -
745 udpstat.udps_badlen -
746 udpstat.udps_badsum -
747 udpstat.udps_noport -
748 udpstat.udps_noportbcast -
749 udpstat.udps_fullsock;
750 if (delivered || sflag <= 1)
751 printf("\t%lu delivered\n", delivered);
752 p(udps_opackets, "\t%lu datagram%s output\n");
753 /* the next statistic is cumulative in udps_noportbcast */
755 "\t%lu time%s multicast source filter matched\n");
761 * Dump CARP statistics structure.
764 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
766 struct carpstats carpstat, zerostat;
767 size_t len = sizeof(struct carpstats);
771 memset(&zerostat, 0, len);
772 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len,
773 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
775 warn("sysctl: net.inet.carp.stats");
781 kread(off, &carpstat, len);
784 printf("%s:\n", name);
786 #define p(f, m) if (carpstat.f || sflag <= 1) \
787 printf(m, (uintmax_t)carpstat.f, plural(carpstat.f))
788 #define p2(f, m) if (carpstat.f || sflag <= 1) \
789 printf(m, (uintmax_t)carpstat.f)
791 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n");
792 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n");
793 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n");
794 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n");
795 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n");
796 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n");
797 p2(carps_badlen, "\t\t%ju discarded because packet too short\n");
798 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n");
799 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n");
800 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n");
801 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n");
802 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n");
803 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n");
805 p(carps_ostates, "\t\t%s state update%s sent\n");
812 * Dump IP statistics structure.
815 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
817 struct ipstat ipstat, zerostat;
818 size_t len = sizeof ipstat;
822 memset(&zerostat, 0, len);
823 if (sysctlbyname("net.inet.ip.stats", &ipstat, &len,
824 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
825 warn("sysctl: net.inet.ip.stats");
829 kread(off, &ipstat, len);
831 printf("%s:\n", name);
833 #define p(f, m) if (ipstat.f || sflag <= 1) \
834 printf(m, ipstat.f, plural(ipstat.f))
835 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
838 p(ips_total, "\t%lu total packet%s received\n");
839 p(ips_badsum, "\t%lu bad header checksum%s\n");
840 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n");
841 p1a(ips_tooshort, "\t%lu with data size < data length\n");
842 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n");
843 p1a(ips_badhlen, "\t%lu with header length < data size\n");
844 p1a(ips_badlen, "\t%lu with data length < header length\n");
845 p1a(ips_badoptions, "\t%lu with bad options\n");
846 p1a(ips_badvers, "\t%lu with incorrect version number\n");
847 p(ips_fragments, "\t%lu fragment%s received\n");
848 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n");
849 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n");
850 p(ips_reassembled, "\t%lu packet%s reassembled ok\n");
851 p(ips_delivered, "\t%lu packet%s for this host\n");
852 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n");
853 p(ips_forward, "\t%lu packet%s forwarded");
854 p(ips_fastforward, " (%lu packet%s fast forwarded)");
855 if (ipstat.ips_forward || sflag <= 1)
857 p(ips_cantforward, "\t%lu packet%s not forwardable\n");
859 "\t%lu packet%s received for unknown multicast group\n");
860 p(ips_redirectsent, "\t%lu redirect%s sent\n");
861 p(ips_localout, "\t%lu packet%s sent from this host\n");
862 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n");
864 "\t%lu output packet%s dropped due to no bufs, etc.\n");
865 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n");
866 p(ips_fragmented, "\t%lu output datagram%s fragmented\n");
867 p(ips_ofragments, "\t%lu fragment%s created\n");
868 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n");
869 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n");
870 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n");
876 * Dump ARP statistics structure.
879 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
881 struct arpstat arpstat, zerostat;
882 size_t len = sizeof(arpstat);
886 memset(&zerostat, 0, len);
887 if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len,
888 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
889 warn("sysctl: net.link.ether.arp.stats");
893 kread(off, &arpstat, len);
895 printf("%s:\n", name);
897 #define p(f, m) if (arpstat.f || sflag <= 1) \
898 printf(m, arpstat.f, plural(arpstat.f))
899 #define p2(f, m) if (arpstat.f || sflag <= 1) \
900 printf(m, arpstat.f, pluralies(arpstat.f))
902 p(txrequests, "\t%lu ARP request%s sent\n");
903 p2(txreplies, "\t%lu ARP repl%s sent\n");
904 p(rxrequests, "\t%lu ARP request%s received\n");
905 p2(rxreplies, "\t%lu ARP repl%s received\n");
906 p(received, "\t%lu ARP packet%s received\n");
907 p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n");
908 p(timeouts, "\t%lu ARP entry%s timed out\n");
909 p(dupips, "\t%lu Duplicate IP%s seen\n");
916 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
917 "echo reply", /* RFC 792 */
920 "destination unreachable", /* RFC 792 */
921 "source quench", /* RFC 792 */
922 "routing redirect", /* RFC 792 */
925 "echo", /* RFC 792 */
926 "router advertisement", /* RFC 1256 */
927 "router solicitation", /* RFC 1256 */
928 "time exceeded", /* RFC 792 */
929 "parameter problem", /* RFC 792 */
930 "time stamp", /* RFC 792 */
931 "time stamp reply", /* RFC 792 */
932 "information request", /* RFC 792 */
933 "information request reply", /* RFC 792 */
934 "address mask request", /* RFC 950 */
935 "address mask reply", /* RFC 950 */
947 "icmp traceroute", /* RFC 1393 */
948 "datagram conversion error", /* RFC 1475 */
949 "mobile host redirect",
950 "IPv6 where-are-you",
952 "mobile registration req",
953 "mobile registration reply",
954 "domain name request", /* RFC 1788 */
955 "domain name reply", /* RFC 1788 */
957 "icmp photuris", /* RFC 2521 */
961 * Dump ICMP statistics.
964 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
966 struct icmpstat icmpstat, zerostat;
970 len = sizeof icmpstat;
973 memset(&zerostat, 0, len);
974 if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len,
975 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
976 warn("sysctl: net.inet.icmp.stats");
980 kread(off, &icmpstat, len);
982 printf("%s:\n", name);
984 #define p(f, m) if (icmpstat.f || sflag <= 1) \
985 printf(m, icmpstat.f, plural(icmpstat.f))
986 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
987 printf(m, icmpstat.f)
988 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
989 printf(m, icmpstat.f, plurales(icmpstat.f))
991 p(icps_error, "\t%lu call%s to icmp_error\n");
993 "\t%lu error%s not generated in response to an icmp message\n");
994 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
995 if (icmpstat.icps_outhist[i] != 0) {
997 printf("\tOutput histogram:\n");
1000 if (icmpnames[i] != NULL)
1001 printf("\t\t%s: %lu\n", icmpnames[i],
1002 icmpstat.icps_outhist[i]);
1004 printf("\t\tunknown ICMP #%d: %lu\n", i,
1005 icmpstat.icps_outhist[i]);
1007 p(icps_badcode, "\t%lu message%s with bad code fields\n");
1008 p(icps_tooshort, "\t%lu message%s less than the minimum length\n");
1009 p(icps_checksum, "\t%lu message%s with bad checksum\n");
1010 p(icps_badlen, "\t%lu message%s with bad length\n");
1011 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n");
1012 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n");
1013 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1014 if (icmpstat.icps_inhist[i] != 0) {
1016 printf("\tInput histogram:\n");
1019 if (icmpnames[i] != NULL)
1020 printf("\t\t%s: %lu\n", icmpnames[i],
1021 icmpstat.icps_inhist[i]);
1023 printf("\t\tunknown ICMP #%d: %lu\n", i,
1024 icmpstat.icps_inhist[i]);
1026 p(icps_reflect, "\t%lu message response%s generated\n");
1027 p2(icps_badaddr, "\t%lu invalid return address%s\n");
1028 p(icps_noroute, "\t%lu no return route%s\n");
1034 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1037 printf("\tICMP address mask responses are %sabled\n",
1042 #ifndef BURN_BRIDGES
1044 * Dump IGMP statistics structure (pre 8.x kernel).
1047 igmp_stats_live_old(u_long off, const char *name)
1049 struct oigmpstat oigmpstat, zerostat;
1050 size_t len = sizeof(oigmpstat);
1053 memset(&zerostat, 0, len);
1054 if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len,
1055 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1056 warn("sysctl: net.inet.igmp.stats");
1060 printf("%s:\n", name);
1062 #define p(f, m) if (oigmpstat.f || sflag <= 1) \
1063 printf(m, oigmpstat.f, plural(oigmpstat.f))
1064 #define py(f, m) if (oigmpstat.f || sflag <= 1) \
1065 printf(m, oigmpstat.f, oigmpstat.f != 1 ? "ies" : "y")
1066 p(igps_rcv_total, "\t%u message%s received\n");
1067 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
1068 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
1069 py(igps_rcv_queries, "\t%u membership quer%s received\n");
1070 py(igps_rcv_badqueries,
1071 "\t%u membership quer%s received with invalid field(s)\n");
1072 p(igps_rcv_reports, "\t%u membership report%s received\n");
1073 p(igps_rcv_badreports,
1074 "\t%u membership report%s received with invalid field(s)\n");
1075 p(igps_rcv_ourreports,
1076 "\t%u membership report%s received for groups to which we belong\n");
1077 p(igps_snd_reports, "\t%u membership report%s sent\n");
1081 #endif /* !BURN_BRIDGES */
1084 * Dump IGMP statistics structure.
1087 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1089 struct igmpstat igmpstat, zerostat;
1092 #ifndef BURN_BRIDGES
1095 * Detect if we are being run against a pre-IGMPv3 kernel.
1096 * We cannot do this for a core file as the legacy
1097 * struct igmpstat has no size field, nor does it
1098 * export it in any readily-available symbols.
1101 if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL,
1103 warn("sysctl: net.inet.igmp.stats");
1106 if (len < sizeof(igmpstat)) {
1107 igmp_stats_live_old(off, name);
1111 #endif /* !BURN_BRIDGES */
1113 len = sizeof(igmpstat);
1116 memset(&zerostat, 0, len);
1117 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len,
1118 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1119 warn("sysctl: net.inet.igmp.stats");
1123 len = sizeof(igmpstat);
1124 kread(off, &igmpstat, len);
1127 if (igmpstat.igps_version != IGPS_VERSION_3) {
1128 warnx("%s: version mismatch (%d != %d)", __func__,
1129 igmpstat.igps_version, IGPS_VERSION_3);
1131 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1132 warnx("%s: size mismatch (%d != %d)", __func__,
1133 igmpstat.igps_len, IGPS_VERSION3_LEN);
1136 printf("%s:\n", name);
1138 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1139 printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1140 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1141 printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1142 p64(igps_rcv_total, "\t%ju message%s received\n");
1143 p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1144 p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n");
1145 p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1146 py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n");
1147 py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n");
1148 py64(igps_rcv_badqueries,
1149 "\t%ju membership quer%s received with invalid field(s)\n");
1150 py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n");
1151 py64(igps_rcv_group_queries, "\t%ju group quer%s received\n");
1152 py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n");
1153 py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n");
1154 p64(igps_rcv_reports, "\t%ju membership report%s received\n");
1155 p64(igps_rcv_badreports,
1156 "\t%ju membership report%s received with invalid field(s)\n");
1157 p64(igps_rcv_ourreports,
1158 "\t%ju membership report%s received for groups to which we belong\n");
1159 p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n");
1160 p64(igps_snd_reports, "\t%ju membership report%s sent\n");
1166 * Dump PIM statistics structure.
1169 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1172 struct pimstat pimstat, zerostat;
1173 size_t len = sizeof pimstat;
1177 memset(&zerostat, 0, len);
1178 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len,
1179 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1180 if (errno != ENOENT)
1181 warn("sysctl: net.inet.pim.stats");
1187 kread(off, &pimstat, len);
1190 printf("%s:\n", name);
1192 #define p(f, m) if (pimstat.f || sflag <= 1) \
1193 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1194 #define py(f, m) if (pimstat.f || sflag <= 1) \
1195 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1196 p(pims_rcv_total_msgs, "\t%ju message%s received\n");
1197 p(pims_rcv_total_bytes, "\t%ju byte%s received\n");
1198 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1199 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1200 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n");
1201 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n");
1202 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n");
1203 p(pims_rcv_registers_wrongiif,
1204 "\t%ju data register message%s received on wrong iif\n");
1205 p(pims_rcv_badregisters, "\t%ju bad register%s received\n");
1206 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n");
1207 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n");
1213 * Pretty print an Internet address (net address + port).
1216 inetprint(struct in_addr *in, int port, const char *proto, int num_port)
1218 struct servent *sp = 0;
1223 sprintf(line, "%s.", inetname(in));
1225 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1226 cp = index(line, '\0');
1227 if (!num_port && port)
1228 sp = getservbyport((int)port, proto);
1229 if (sp || port == 0)
1230 sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1232 sprintf(cp, "%d ", ntohs((u_short)port));
1233 width = (Aflag && !Wflag) ? 18 : 22;
1235 printf("%-*s ", width, line);
1237 printf("%-*.*s ", width, width, line);
1241 * Construct an Internet address representation.
1242 * If numeric_addr has been supplied, give
1243 * numeric value, otherwise try for symbolic name.
1246 inetname(struct in_addr *inp)
1249 static char line[MAXHOSTNAMELEN];
1254 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1255 int net = inet_netof(*inp);
1256 int lna = inet_lnaof(*inp);
1258 if (lna == INADDR_ANY) {
1259 np = getnetbyaddr(net, AF_INET);
1264 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1267 trimdomain(cp, strlen(cp));
1271 if (inp->s_addr == INADDR_ANY)
1274 strlcpy(line, cp, sizeof(line));
1276 inp->s_addr = ntohl(inp->s_addr);
1277 #define C(x) ((u_int)((x) & 0xff))
1278 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1279 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));