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("%-*s ", 2 * (int)sizeof(void *), "Tcpcb");
409 printf((Aflag && !Wflag) ?
410 "%-5.5s %-14.14s %-18.18s" :
411 "%-5.5s %-14.14s %-22.22s",
412 "Proto", "Listen", "Local Address");
414 printf((Aflag && !Wflag) ?
415 "%-5.5s %-6.6s %-6.6s %-6.6s %-18.18s %s" :
416 "%-5.5s %-6.6s %-6.6s %-6.6s %-22.22s %s",
417 "Proto", "Rexmit", "OOORcv", "0-win",
418 "Local Address", "Foreign Address");
420 printf((Aflag && !Wflag) ?
421 "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" :
422 "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s",
423 "Proto", "Recv-Q", "Send-Q",
424 "Local Address", "Foreign Address");
429 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",
430 "R-MBUF", "S-MBUF", "R-CLUS",
431 "S-CLUS", "R-HIWA", "S-HIWA",
432 "R-LOWA", "S-LOWA", "R-BCNT",
433 "S-BCNT", "R-BMAX", "S-BMAX");
438 if (Lflag && so->so_qlimit == 0)
442 printf("%*lx ", 2 * (int)sizeof(void *), (u_long)inp->inp_ppcb);
444 printf("%*lx ", 2 * (int)sizeof(void *), (u_long)so->so_pcb);
447 if ((inp->inp_vflag & INP_IPV6) != 0)
448 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
452 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
454 printf("%-3.3s%-2.2s ", name, vchar);
458 snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
459 so->so_incqlen, so->so_qlimit);
460 printf("%-14.14s ", buf1);
463 printf("%6ju %6ju %6u ",
464 (uintmax_t)tp->t_sndrexmitpack,
465 (uintmax_t)tp->t_rcvoopack,
468 printf("%6u %6u ", so->so_rcv.sb_cc, so->so_snd.sb_cc);
471 if (inp->inp_vflag & INP_IPV4) {
472 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
475 inetprint(&inp->inp_faddr,
476 (int)inp->inp_fport, name, 1);
479 else if (inp->inp_vflag & INP_IPV6) {
480 inet6print(&inp->in6p_laddr,
481 (int)inp->inp_lport, name, 1);
483 inet6print(&inp->in6p_faddr,
484 (int)inp->inp_fport, name, 1);
485 } /* else nothing printed now */
487 } else if (inp->inp_flags & INP_ANONPORT) {
488 if (inp->inp_vflag & INP_IPV4) {
489 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
492 inetprint(&inp->inp_faddr,
493 (int)inp->inp_fport, name, 0);
496 else if (inp->inp_vflag & INP_IPV6) {
497 inet6print(&inp->in6p_laddr,
498 (int)inp->inp_lport, name, 1);
500 inet6print(&inp->in6p_faddr,
501 (int)inp->inp_fport, name, 0);
502 } /* else nothing printed now */
505 if (inp->inp_vflag & INP_IPV4) {
506 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
509 inetprint(&inp->inp_faddr,
510 (int)inp->inp_fport, name,
511 inp->inp_lport != inp->inp_fport);
514 else if (inp->inp_vflag & INP_IPV6) {
515 inet6print(&inp->in6p_laddr,
516 (int)inp->inp_lport, name, 0);
518 inet6print(&inp->in6p_faddr,
519 (int)inp->inp_fport, name,
520 inp->inp_lport != inp->inp_fport);
521 } /* else nothing printed now */
525 printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u",
526 so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
527 so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
528 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
529 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
530 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
531 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
533 if (istcp && !Lflag && !xflag && !Tflag) {
534 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
535 printf("%d", tp->t_state);
537 printf("%s", tcpstates[tp->t_state]);
538 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
539 /* Show T/TCP `hidden state' */
540 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
542 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
547 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
548 if (oxig->xig_count > xig->xig_count) {
549 printf("Some %s sockets may have been deleted.\n",
551 } else if (oxig->xig_count < xig->xig_count) {
552 printf("Some %s sockets may have been created.\n",
556 "Some %s sockets may have been created or deleted.\n",
564 * Dump TCP statistics structure.
567 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
569 struct tcpstat tcpstat, zerostat;
570 size_t len = sizeof tcpstat;
581 memset(&zerostat, 0, len);
582 if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len,
583 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
584 warn("sysctl: net.inet.tcp.stats");
588 kread(off, &tcpstat, len);
590 printf ("%s:\n", name);
592 #define p(f, m) if (tcpstat.f || sflag <= 1) \
593 printf(m, tcpstat.f, plural(tcpstat.f))
594 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
596 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
597 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
598 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
599 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2)
600 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
601 printf(m, tcpstat.f, pluralies(tcpstat.f))
603 p(tcps_sndtotal, "\t%lu packet%s sent\n");
604 p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n");
605 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
606 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n");
608 "\t\t%lu data packet%s unnecessarily retransmitted\n");
609 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n");
610 p2a(tcps_sndacks, tcps_delack,
611 "\t\t%lu ack-only packet%s (%lu delayed)\n");
612 p(tcps_sndurg, "\t\t%lu URG only packet%s\n");
613 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n");
614 p(tcps_sndwinup, "\t\t%lu window update packet%s\n");
615 p(tcps_sndctrl, "\t\t%lu control packet%s\n");
616 p(tcps_rcvtotal, "\t%lu packet%s received\n");
617 p2(tcps_rcvackpack, tcps_rcvackbyte,
618 "\t\t%lu ack%s (for %lu byte%s)\n");
619 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n");
620 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n");
621 p2(tcps_rcvpack, tcps_rcvbyte,
622 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n");
623 p2(tcps_rcvduppack, tcps_rcvdupbyte,
624 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n");
625 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n");
626 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
627 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n");
628 p2(tcps_rcvoopack, tcps_rcvoobyte,
629 "\t\t%lu out-of-order packet%s (%lu byte%s)\n");
630 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
631 "\t\t%lu packet%s (%lu byte%s) of data after window\n");
632 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n");
633 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n");
634 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n");
635 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n");
636 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n");
637 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n");
638 p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\n");
639 p(tcps_connattempt, "\t%lu connection request%s\n");
640 p(tcps_accepts, "\t%lu connection accept%s\n");
641 p(tcps_badsyn, "\t%lu bad connection attempt%s\n");
642 p(tcps_listendrop, "\t%lu listen queue overflow%s\n");
643 p(tcps_badrst, "\t%lu ignored RSTs in the window%s\n");
644 p(tcps_connects, "\t%lu connection%s established (including accepts)\n");
645 p2(tcps_closed, tcps_drops,
646 "\t%lu connection%s closed (including %lu drop%s)\n");
647 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n");
649 "\t\t%lu connection%s updated cached RTT variance on close\n");
650 p(tcps_cachedssthresh,
651 "\t\t%lu connection%s updated cached ssthresh on close\n");
652 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n");
653 p2(tcps_rttupdated, tcps_segstimed,
654 "\t%lu segment%s updated rtt (of %lu attempt%s)\n");
655 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n");
656 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n");
657 p(tcps_persisttimeo, "\t%lu persist timeout%s\n");
658 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n");
659 p(tcps_finwait2_drops,
660 "\t%lu Connection%s (fin_wait_2) dropped because of timeout\n");
661 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n");
662 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n");
663 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n");
664 p(tcps_predack, "\t%lu correct ACK header prediction%s\n");
665 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n");
667 p3(tcps_sc_added, "\t%lu syncache entr%s added\n");
668 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n");
669 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n");
670 p1a(tcps_sc_dropped, "\t\t%lu dropped\n");
671 p1a(tcps_sc_completed, "\t\t%lu completed\n");
672 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n");
673 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n");
674 p1a(tcps_sc_reset, "\t\t%lu reset\n");
675 p1a(tcps_sc_stale, "\t\t%lu stale\n");
676 p1a(tcps_sc_aborted, "\t\t%lu aborted\n");
677 p1a(tcps_sc_badack, "\t\t%lu badack\n");
678 p1a(tcps_sc_unreach, "\t\t%lu unreach\n");
679 p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n");
680 p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n");
681 p(tcps_sc_recvcookie, "\t%lu cookie%s received\n");
683 p(tcps_hc_added, "\t%lu hostcache entrie%s added\n");
684 p1a(tcps_hc_bucketoverflow, "\t\t%lu bucket overflow\n");
686 p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n");
688 "\t%lu segment rexmit%s in SACK recovery episodes\n");
689 p(tcps_sack_rexmit_bytes,
690 "\t%lu byte rexmit%s in SACK recovery episodes\n");
691 p(tcps_sack_rcv_blocks,
692 "\t%lu SACK option%s (SACK blocks) received\n");
693 p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n");
694 p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n");
696 p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n");
697 p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n");
698 p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n");
699 p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n");
700 p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n");
709 * Dump UDP statistics structure.
712 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
714 struct udpstat udpstat, zerostat;
715 size_t len = sizeof udpstat;
727 memset(&zerostat, 0, len);
728 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len,
729 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
730 warn("sysctl: net.inet.udp.stats");
734 kread(off, &udpstat, len);
736 printf("%s:\n", name);
737 #define p(f, m) if (udpstat.f || sflag <= 1) \
738 printf(m, udpstat.f, plural(udpstat.f))
739 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
741 p(udps_ipackets, "\t%lu datagram%s received\n");
742 p1a(udps_hdrops, "\t%lu with incomplete header\n");
743 p1a(udps_badlen, "\t%lu with bad data length field\n");
744 p1a(udps_badsum, "\t%lu with bad checksum\n");
745 p1a(udps_nosum, "\t%lu with no checksum\n");
746 p1a(udps_noport, "\t%lu dropped due to no socket\n");
748 "\t%lu broadcast/multicast datagram%s undelivered\n");
749 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n");
750 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n");
751 delivered = udpstat.udps_ipackets -
752 udpstat.udps_hdrops -
753 udpstat.udps_badlen -
754 udpstat.udps_badsum -
755 udpstat.udps_noport -
756 udpstat.udps_noportbcast -
757 udpstat.udps_fullsock;
758 if (delivered || sflag <= 1)
759 printf("\t%lu delivered\n", delivered);
760 p(udps_opackets, "\t%lu datagram%s output\n");
761 /* the next statistic is cumulative in udps_noportbcast */
763 "\t%lu time%s multicast source filter matched\n");
769 * Dump CARP statistics structure.
772 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
774 struct carpstats carpstat, zerostat;
775 size_t len = sizeof(struct carpstats);
779 memset(&zerostat, 0, len);
780 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len,
781 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
783 warn("sysctl: net.inet.carp.stats");
789 kread(off, &carpstat, len);
792 printf("%s:\n", name);
794 #define p(f, m) if (carpstat.f || sflag <= 1) \
795 printf(m, (uintmax_t)carpstat.f, plural(carpstat.f))
796 #define p2(f, m) if (carpstat.f || sflag <= 1) \
797 printf(m, (uintmax_t)carpstat.f)
799 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n");
800 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n");
801 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n");
802 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n");
803 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n");
804 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n");
805 p2(carps_badlen, "\t\t%ju discarded because packet too short\n");
806 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n");
807 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n");
808 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n");
809 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n");
810 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n");
811 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n");
813 p(carps_ostates, "\t\t%s state update%s sent\n");
820 * Dump IP statistics structure.
823 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
825 struct ipstat ipstat, zerostat;
826 size_t len = sizeof ipstat;
830 memset(&zerostat, 0, len);
831 if (sysctlbyname("net.inet.ip.stats", &ipstat, &len,
832 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
833 warn("sysctl: net.inet.ip.stats");
837 kread(off, &ipstat, len);
839 printf("%s:\n", name);
841 #define p(f, m) if (ipstat.f || sflag <= 1) \
842 printf(m, ipstat.f, plural(ipstat.f))
843 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
846 p(ips_total, "\t%lu total packet%s received\n");
847 p(ips_badsum, "\t%lu bad header checksum%s\n");
848 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n");
849 p1a(ips_tooshort, "\t%lu with data size < data length\n");
850 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n");
851 p1a(ips_badhlen, "\t%lu with header length < data size\n");
852 p1a(ips_badlen, "\t%lu with data length < header length\n");
853 p1a(ips_badoptions, "\t%lu with bad options\n");
854 p1a(ips_badvers, "\t%lu with incorrect version number\n");
855 p(ips_fragments, "\t%lu fragment%s received\n");
856 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n");
857 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n");
858 p(ips_reassembled, "\t%lu packet%s reassembled ok\n");
859 p(ips_delivered, "\t%lu packet%s for this host\n");
860 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n");
861 p(ips_forward, "\t%lu packet%s forwarded");
862 p(ips_fastforward, " (%lu packet%s fast forwarded)");
863 if (ipstat.ips_forward || sflag <= 1)
865 p(ips_cantforward, "\t%lu packet%s not forwardable\n");
867 "\t%lu packet%s received for unknown multicast group\n");
868 p(ips_redirectsent, "\t%lu redirect%s sent\n");
869 p(ips_localout, "\t%lu packet%s sent from this host\n");
870 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n");
872 "\t%lu output packet%s dropped due to no bufs, etc.\n");
873 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n");
874 p(ips_fragmented, "\t%lu output datagram%s fragmented\n");
875 p(ips_ofragments, "\t%lu fragment%s created\n");
876 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n");
877 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n");
878 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n");
884 * Dump ARP statistics structure.
887 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
889 struct arpstat arpstat, zerostat;
890 size_t len = sizeof(arpstat);
894 memset(&zerostat, 0, len);
895 if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len,
896 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
897 warn("sysctl: net.link.ether.arp.stats");
901 kread(off, &arpstat, len);
903 printf("%s:\n", name);
905 #define p(f, m) if (arpstat.f || sflag <= 1) \
906 printf(m, arpstat.f, plural(arpstat.f))
907 #define p2(f, m) if (arpstat.f || sflag <= 1) \
908 printf(m, arpstat.f, pluralies(arpstat.f))
910 p(txrequests, "\t%lu ARP request%s sent\n");
911 p2(txreplies, "\t%lu ARP repl%s sent\n");
912 p(rxrequests, "\t%lu ARP request%s received\n");
913 p2(rxreplies, "\t%lu ARP repl%s received\n");
914 p(received, "\t%lu ARP packet%s received\n");
915 p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n");
916 p(timeouts, "\t%lu ARP entry%s timed out\n");
917 p(dupips, "\t%lu Duplicate IP%s seen\n");
924 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
925 "echo reply", /* RFC 792 */
928 "destination unreachable", /* RFC 792 */
929 "source quench", /* RFC 792 */
930 "routing redirect", /* RFC 792 */
933 "echo", /* RFC 792 */
934 "router advertisement", /* RFC 1256 */
935 "router solicitation", /* RFC 1256 */
936 "time exceeded", /* RFC 792 */
937 "parameter problem", /* RFC 792 */
938 "time stamp", /* RFC 792 */
939 "time stamp reply", /* RFC 792 */
940 "information request", /* RFC 792 */
941 "information request reply", /* RFC 792 */
942 "address mask request", /* RFC 950 */
943 "address mask reply", /* RFC 950 */
955 "icmp traceroute", /* RFC 1393 */
956 "datagram conversion error", /* RFC 1475 */
957 "mobile host redirect",
958 "IPv6 where-are-you",
960 "mobile registration req",
961 "mobile registration reply",
962 "domain name request", /* RFC 1788 */
963 "domain name reply", /* RFC 1788 */
965 "icmp photuris", /* RFC 2521 */
969 * Dump ICMP statistics.
972 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
974 struct icmpstat icmpstat, zerostat;
978 len = sizeof icmpstat;
981 memset(&zerostat, 0, len);
982 if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len,
983 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
984 warn("sysctl: net.inet.icmp.stats");
988 kread(off, &icmpstat, len);
990 printf("%s:\n", name);
992 #define p(f, m) if (icmpstat.f || sflag <= 1) \
993 printf(m, icmpstat.f, plural(icmpstat.f))
994 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
995 printf(m, icmpstat.f)
996 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
997 printf(m, icmpstat.f, plurales(icmpstat.f))
999 p(icps_error, "\t%lu call%s to icmp_error\n");
1001 "\t%lu error%s not generated in response to an icmp message\n");
1002 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1003 if (icmpstat.icps_outhist[i] != 0) {
1005 printf("\tOutput histogram:\n");
1008 if (icmpnames[i] != NULL)
1009 printf("\t\t%s: %lu\n", icmpnames[i],
1010 icmpstat.icps_outhist[i]);
1012 printf("\t\tunknown ICMP #%d: %lu\n", i,
1013 icmpstat.icps_outhist[i]);
1015 p(icps_badcode, "\t%lu message%s with bad code fields\n");
1016 p(icps_tooshort, "\t%lu message%s less than the minimum length\n");
1017 p(icps_checksum, "\t%lu message%s with bad checksum\n");
1018 p(icps_badlen, "\t%lu message%s with bad length\n");
1019 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n");
1020 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n");
1021 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1022 if (icmpstat.icps_inhist[i] != 0) {
1024 printf("\tInput histogram:\n");
1027 if (icmpnames[i] != NULL)
1028 printf("\t\t%s: %lu\n", icmpnames[i],
1029 icmpstat.icps_inhist[i]);
1031 printf("\t\tunknown ICMP #%d: %lu\n", i,
1032 icmpstat.icps_inhist[i]);
1034 p(icps_reflect, "\t%lu message response%s generated\n");
1035 p2(icps_badaddr, "\t%lu invalid return address%s\n");
1036 p(icps_noroute, "\t%lu no return route%s\n");
1042 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1045 printf("\tICMP address mask responses are %sabled\n",
1050 #ifndef BURN_BRIDGES
1052 * Dump IGMP statistics structure (pre 8.x kernel).
1055 igmp_stats_live_old(const char *name)
1057 struct oigmpstat oigmpstat, zerostat;
1058 size_t len = sizeof(oigmpstat);
1061 memset(&zerostat, 0, len);
1062 if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len,
1063 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1064 warn("sysctl: net.inet.igmp.stats");
1068 printf("%s:\n", name);
1070 #define p(f, m) if (oigmpstat.f || sflag <= 1) \
1071 printf(m, oigmpstat.f, plural(oigmpstat.f))
1072 #define py(f, m) if (oigmpstat.f || sflag <= 1) \
1073 printf(m, oigmpstat.f, oigmpstat.f != 1 ? "ies" : "y")
1074 p(igps_rcv_total, "\t%u message%s received\n");
1075 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
1076 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
1077 py(igps_rcv_queries, "\t%u membership quer%s received\n");
1078 py(igps_rcv_badqueries,
1079 "\t%u membership quer%s received with invalid field(s)\n");
1080 p(igps_rcv_reports, "\t%u membership report%s received\n");
1081 p(igps_rcv_badreports,
1082 "\t%u membership report%s received with invalid field(s)\n");
1083 p(igps_rcv_ourreports,
1084 "\t%u membership report%s received for groups to which we belong\n");
1085 p(igps_snd_reports, "\t%u membership report%s sent\n");
1089 #endif /* !BURN_BRIDGES */
1092 * Dump IGMP statistics structure.
1095 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1097 struct igmpstat igmpstat, zerostat;
1100 #ifndef BURN_BRIDGES
1103 * Detect if we are being run against a pre-IGMPv3 kernel.
1104 * We cannot do this for a core file as the legacy
1105 * struct igmpstat has no size field, nor does it
1106 * export it in any readily-available symbols.
1109 if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL,
1111 warn("sysctl: net.inet.igmp.stats");
1114 if (len < sizeof(igmpstat)) {
1115 igmp_stats_live_old(name);
1119 #endif /* !BURN_BRIDGES */
1121 len = sizeof(igmpstat);
1124 memset(&zerostat, 0, len);
1125 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len,
1126 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1127 warn("sysctl: net.inet.igmp.stats");
1131 len = sizeof(igmpstat);
1132 kread(off, &igmpstat, len);
1135 if (igmpstat.igps_version != IGPS_VERSION_3) {
1136 warnx("%s: version mismatch (%d != %d)", __func__,
1137 igmpstat.igps_version, IGPS_VERSION_3);
1139 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1140 warnx("%s: size mismatch (%d != %d)", __func__,
1141 igmpstat.igps_len, IGPS_VERSION3_LEN);
1144 printf("%s:\n", name);
1146 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1147 printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1148 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1149 printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1150 p64(igps_rcv_total, "\t%ju message%s received\n");
1151 p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1152 p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n");
1153 p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1154 py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n");
1155 py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n");
1156 py64(igps_rcv_badqueries,
1157 "\t%ju membership quer%s received with invalid field(s)\n");
1158 py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n");
1159 py64(igps_rcv_group_queries, "\t%ju group quer%s received\n");
1160 py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n");
1161 py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n");
1162 p64(igps_rcv_reports, "\t%ju membership report%s received\n");
1163 p64(igps_rcv_badreports,
1164 "\t%ju membership report%s received with invalid field(s)\n");
1165 p64(igps_rcv_ourreports,
1166 "\t%ju membership report%s received for groups to which we belong\n");
1167 p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n");
1168 p64(igps_snd_reports, "\t%ju membership report%s sent\n");
1174 * Dump PIM statistics structure.
1177 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1180 struct pimstat pimstat, zerostat;
1181 size_t len = sizeof pimstat;
1185 memset(&zerostat, 0, len);
1186 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len,
1187 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1188 if (errno != ENOENT)
1189 warn("sysctl: net.inet.pim.stats");
1195 kread(off, &pimstat, len);
1198 printf("%s:\n", name);
1200 #define p(f, m) if (pimstat.f || sflag <= 1) \
1201 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1202 #define py(f, m) if (pimstat.f || sflag <= 1) \
1203 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1204 p(pims_rcv_total_msgs, "\t%ju message%s received\n");
1205 p(pims_rcv_total_bytes, "\t%ju byte%s received\n");
1206 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1207 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1208 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n");
1209 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n");
1210 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n");
1211 p(pims_rcv_registers_wrongiif,
1212 "\t%ju data register message%s received on wrong iif\n");
1213 p(pims_rcv_badregisters, "\t%ju bad register%s received\n");
1214 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n");
1215 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n");
1221 * Pretty print an Internet address (net address + port).
1224 inetprint(struct in_addr *in, int port, const char *proto, int num_port)
1226 struct servent *sp = 0;
1231 sprintf(line, "%s.", inetname(in));
1233 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1234 cp = index(line, '\0');
1235 if (!num_port && port)
1236 sp = getservbyport((int)port, proto);
1237 if (sp || port == 0)
1238 sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1240 sprintf(cp, "%d ", ntohs((u_short)port));
1241 width = (Aflag && !Wflag) ? 18 : 22;
1243 printf("%-*s ", width, line);
1245 printf("%-*.*s ", width, width, line);
1249 * Construct an Internet address representation.
1250 * If numeric_addr has been supplied, give
1251 * numeric value, otherwise try for symbolic name.
1254 inetname(struct in_addr *inp)
1257 static char line[MAXHOSTNAMELEN];
1262 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1263 int net = inet_netof(*inp);
1264 int lna = inet_lnaof(*inp);
1266 if (lna == INADDR_ANY) {
1267 np = getnetbyaddr(net, AF_INET);
1272 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1275 trimdomain(cp, strlen(cp));
1279 if (inp->s_addr == INADDR_ANY)
1282 strlcpy(line, cp, sizeof(line));
1284 inp->s_addr = ntohl(inp->s_addr);
1285 #define C(x) ((u_int)((x) & 0xff))
1286 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1287 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));