/* * Copyright (c) 1983, 1988, 1993, 1995 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)inet.c 8.5 (Berkeley) 5/24/95 * $FreeBSD: src/usr.bin/netstat/inet.c,v 1.37.2.11 2003/11/27 14:46:49 ru Exp $ * $DragonFly: src/usr.bin/netstat/inet.c,v 1.19 2005/08/04 17:31:23 drhodus Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #ifdef INET6 #include #endif /* INET6 */ #include #include #include #include #include #include #include #include #include #define TCPSTATES #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "netstat.h" char *inetname (struct in_addr *); void inetprint (struct in_addr *, int, const char *, int); #ifdef INET6 extern void inet6print (struct in6_addr *, int, const char *, int); static int udp_done, tcp_done; #endif /* INET6 */ /* * Print a summary of connections related to an Internet * protocol. For TCP, also give state of connection. * Listening processes (aflag) are suppressed unless the * -a (all) flag is specified. */ static int ppr_first = 1; static void outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp); void protopr(u_long proto, char *name, int af) { int istcp; int i; void *buf; const char *mibvar; size_t len; istcp = 0; switch (proto) { case IPPROTO_TCP: #ifdef INET6 if (tcp_done != 0) return; else tcp_done = 1; #endif istcp = 1; mibvar = "net.inet.tcp.pcblist"; break; case IPPROTO_UDP: #ifdef INET6 if (udp_done != 0) return; else udp_done = 1; #endif mibvar = "net.inet.udp.pcblist"; break; case IPPROTO_DIVERT: mibvar = "net.inet.divert.pcblist"; break; default: mibvar = "net.inet.raw.pcblist"; break; } len = 0; if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { if (errno != ENOENT) warn("sysctl: %s", mibvar); return; } if (len == 0) return; if ((buf = malloc(len)) == 0) { warn("malloc %lu bytes", (u_long)len); return; } if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { warn("sysctl: %s", mibvar); free(buf); return; } if (istcp) { struct xtcpcb *tcp = buf; len /= sizeof(*tcp); for (i = 0; i < len; i++) { if (tcp[i].xt_len != sizeof(*tcp)) break; outputpcb(proto, name, &tcp[i].xt_inp, &tcp[i].xt_socket, &tcp[i].xt_tp); } } else { struct xinpcb *in = buf; len /= sizeof(*in); for (i = 0; i < len; i++) { if (in[i].xi_len != sizeof(*in)) break; outputpcb(proto, name, &in[i].xi_inp, &in[i].xi_socket, NULL); } } free(buf); } static void outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp) { const char *vchar; static struct clockinfo clockinfo; if (clockinfo.hz == 0) { int size = sizeof(clockinfo); sysctlbyname("kern.clockrate", &clockinfo, &size, NULL, 0); if (clockinfo.hz == 0) clockinfo.hz = 100; } /* Ignore sockets for protocols other than the desired one. */ if (so->xso_protocol != (int)proto) return; if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0) #ifdef INET6 || (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0) #endif /* INET6 */ || (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0 #ifdef INET6 && (inp->inp_vflag & INP_IPV6) == 0 #endif /* INET6 */ )) ) { return; } if (!aflag && ( (af == AF_INET && inet_lnaof(inp->inp_laddr) == INADDR_ANY) #ifdef INET6 || (af == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) #endif /* INET6 */ || (af == AF_UNSPEC && (((inp->inp_vflag & INP_IPV4) != 0 && inet_lnaof(inp->inp_laddr) == INADDR_ANY) #ifdef INET6 || ((inp->inp_vflag & INP_IPV6) != 0 && IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) #endif )) )) { return; } if (ppr_first) { if (!Lflag) { printf("Active Internet connections"); if (aflag) printf(" (including servers)"); } else { printf("Current listen queue sizes " "(qlen/incqlen/maxqlen)"); } putchar('\n'); if (Aflag) printf("%-8.8s ", "Socket"); if (Pflag) printf("%8.8s %8.8s %8.8s ", "TxWin", "Unacked", "RTT/ms"); if (Lflag) { printf("%-5.5s %-14.14s %-22.22s\n", "Proto", "Listen", "Local Address"); } else { printf((Aflag && !Wflag) ? "%-5.5s %-6.6s %-6.6s %-17.17s %-17.17s %s\n" : "%-5.5s %-6.6s %-6.6s %-21.21s %-21.21s %s\n", "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address", "(state)"); } ppr_first = 0; } if (Lflag && so->so_qlimit == 0) return; if (Aflag) { if (tp) printf("%8lx ", (u_long)inp->inp_ppcb); else printf("%8lx ", (u_long)so->so_pcb); } if (Pflag) { if (tp) { int window = MIN(tp->snd_cwnd, tp->snd_bwnd); if (window == 1073725440) printf("%8s ", "max"); else printf("%8d ", (int)MIN(tp->snd_cwnd, tp->snd_bwnd)); printf("%8d ", (int)(tp->snd_max - tp->snd_una)); if (tp->t_srtt == 0) printf("%8s ", "-"); else printf("%8.3f ", (double)tp->t_srtt * 1000.0 / TCP_RTT_SCALE / clockinfo.hz); } else { printf("%8s %8s %8s ", "-", "-", "-"); } } #ifdef INET6 if ((inp->inp_vflag & INP_IPV6) != 0) vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "46" : "6 "; else #endif vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "4 " : " "; printf("%-3.3s%-2.2s ", name, vchar); if (Lflag) { char buf[15]; snprintf(buf, sizeof(buf), "%d/%d/%d", so->so_qlen, so->so_incqlen, so->so_qlimit); printf("%-13.13s ", buf); } else if (Bflag) { printf("%6ld %6ld ", so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat); } else { printf("%6ld %6ld ", so->so_rcv.sb_cc, so->so_snd.sb_cc); } if (numeric_port) { if (inp->inp_vflag & INP_IPV4) { inetprint(&inp->inp_laddr, (int)inp->inp_lport, name, 1); if (!Lflag) inetprint(&inp->inp_faddr, (int)inp->inp_fport, name, 1); } #ifdef INET6 else if (inp->inp_vflag & INP_IPV6) { inet6print(&inp->in6p_laddr, (int)inp->inp_lport, name, 1); if (!Lflag) inet6print(&inp->in6p_faddr, (int)inp->inp_fport, name, 1); } /* else nothing printed now */ #endif /* INET6 */ } else if (inp->inp_flags & INP_ANONPORT) { if (inp->inp_vflag & INP_IPV4) { inetprint(&inp->inp_laddr, (int)inp->inp_lport, name, 1); if (!Lflag) inetprint(&inp->inp_faddr, (int)inp->inp_fport, name, 0); } #ifdef INET6 else if (inp->inp_vflag & INP_IPV6) { inet6print(&inp->in6p_laddr, (int)inp->inp_lport, name, 1); if (!Lflag) inet6print(&inp->in6p_faddr, (int)inp->inp_fport, name, 0); } /* else nothing printed now */ #endif /* INET6 */ } else { if (inp->inp_vflag & INP_IPV4) { inetprint(&inp->inp_laddr, (int)inp->inp_lport, name, 0); if (!Lflag) inetprint(&inp->inp_faddr, (int)inp->inp_fport, name, inp->inp_lport != inp->inp_fport); } #ifdef INET6 else if (inp->inp_vflag & INP_IPV6) { inet6print(&inp->in6p_laddr, (int)inp->inp_lport, name, 0); if (!Lflag) inet6print(&inp->in6p_faddr, (int)inp->inp_fport, name, inp->inp_lport != inp->inp_fport); } /* else nothing printed now */ #endif /* INET6 */ } if (tp && !Lflag) { if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES) printf("%d", tp->t_state); else { printf("%s", tcpstates[tp->t_state]); #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN) /* Show T/TCP `hidden state' */ if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN)) putchar('*'); #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */ } } putchar('\n'); } #define CPU_STATS_FUNC(proto,type) \ static void \ proto ##_stats_agg(type *ary, type *ttl, int cpucnt) \ { \ int i, off, siz; \ siz = sizeof(type); \ \ if (!ary && !ttl) \ return; \ \ bzero(ttl, siz); \ if (cpucnt == 1) { \ *ttl = ary[0]; \ } else { \ for (i = 0; i < cpucnt; ++i) { \ for (off = 0; off < siz; off += sizeof(u_long)) { \ *(u_long *)((char *)(*(&ttl)) + off) += \ *(u_long *)((char *)&ary[i] + off); \ } \ } \ } \ } CPU_STATS_FUNC(tcp, struct tcp_stats); CPU_STATS_FUNC(ip, struct ip_stats); /* * Dump TCP statistics structure. */ void tcp_stats(u_long off __unused, char *name, int af __unused) { struct tcp_stats tcpstat, *stattmp; struct tcp_stats zerostat[SMP_MAXCPU]; size_t len = sizeof(struct tcp_stats) * SMP_MAXCPU; int cpucnt; if (zflag) memset(zerostat, 0, len); if ((stattmp = malloc(len)) == NULL) { return; } else { if (sysctlbyname("net.inet.tcp.stats", stattmp, &len, zflag ? zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.tcp.stats"); free(stattmp); return; } else { if ((stattmp = realloc(stattmp, len)) == NULL) { warn("tcp_stats"); return; } } } cpucnt = len / sizeof(struct tcp_stats); tcp_stats_agg(stattmp, &tcpstat, cpucnt); #ifdef INET6 if (tcp_done != 0) return; else tcp_done = 1; #endif printf ("%s:\n", name); #define p(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f, plural(tcpstat.f)) #define p1a(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f) #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2)) #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2) #define p3(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f, plurales(tcpstat.f)) p(tcps_sndtotal, "\t%lu packet%s sent\n"); p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n"); p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t%lu data packet%s (%lu byte%s) retransmitted\n"); p2a(tcps_sndfastrexmit, tcps_sndearlyrexmit, "\t\t%lu Fast Retransmit%s (%lu early)\n"); p(tcps_sndlimited, "\t\t%lu packet%s sent by Limited Transmit\n"); p(tcps_sndrtobad, "\t\t%lu spurious RTO retransmit%s\n"); p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); p(tcps_eifeldetected, "\t\t%lu Eifel-detected spurious retransmit%s\n"); p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); p2a(tcps_sndacks, tcps_delack, "\t\t%lu ack-only packet%s (%lu delayed)\n"); p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); p(tcps_sndctrl, "\t\t%lu control packet%s\n"); p(tcps_rcvtotal, "\t%lu packet%s received\n"); p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); p2(tcps_rcvpack, tcps_rcvbyte, "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n"); p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t%lu packet%s (%lu byte%s) of data after window\n"); p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); p(tcps_connattempt, "\t%lu connection request%s\n"); p(tcps_accepts, "\t%lu connection accept%s\n"); p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); p2(tcps_closed, tcps_drops, "\t%lu connection%s closed (including %lu drop%s)\n"); p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); p(tcps_cachedrttvar, "\t\t%lu connection%s updated cached RTT variance on close\n"); p(tcps_cachedssthresh, "\t\t%lu connection%s updated cached ssthresh on close\n"); p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); p2(tcps_rttupdated, tcps_segstimed, "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); p1a(tcps_sc_added, "\t%lu syncache entries added\n"); p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); p1a(tcps_sc_completed, "\t\t%lu completed\n"); p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); p1a(tcps_sc_reset, "\t\t%lu reset\n"); p1a(tcps_sc_stale, "\t\t%lu stale\n"); p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); p1a(tcps_sc_badack, "\t\t%lu badack\n"); p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); p1a(tcps_sc_sendcookie, "\t%lu cookies sent\n"); p1a(tcps_sc_recvcookie, "\t%lu cookies received\n"); free(stattmp); #undef p #undef p1a #undef p2 #undef p2a #undef p3 } /* * Dump UDP statistics structure. */ void udp_stats(u_long off __unused, char *name, int af __unused) { struct udpstat udpstat, zerostat; size_t len = sizeof udpstat; u_long delivered; if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.udp.stats"); return; } #ifdef INET6 if (udp_done != 0) return; else udp_done = 1; #endif printf("%s:\n", name); #define p(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f, plural(udpstat.f)) #define p1a(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f) p(udps_ipackets, "\t%lu datagram%s received\n"); p1a(udps_hdrops, "\t%lu with incomplete header\n"); p1a(udps_badlen, "\t%lu with bad data length field\n"); p1a(udps_badsum, "\t%lu with bad checksum\n"); p1a(udps_nosum, "\t%lu with no checksum\n"); p1a(udps_noport, "\t%lu dropped due to no socket\n"); p(udps_noportbcast, "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); delivered = udpstat.udps_ipackets - udpstat.udps_hdrops - udpstat.udps_badlen - udpstat.udps_badsum - udpstat.udps_noport - udpstat.udps_noportbcast - udpstat.udps_fullsock; if (delivered || sflag <= 1) printf("\t%lu delivered\n", delivered); p(udps_opackets, "\t%lu datagram%s output\n"); #undef p #undef p1a } /* * Dump IP statistics structure. */ void ip_stats(u_long off __unused, char *name, int af __unused) { struct ip_stats ipstat, *stattmp; struct ip_stats zerostat[SMP_MAXCPU]; size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; int cpucnt; if (zflag) memset(zerostat, 0, len); if ((stattmp = malloc(len)) == NULL) { return; } else { if (sysctlbyname("net.inet.ip.stats", stattmp, &len, zflag ? zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.ip.stats"); free(stattmp); return; } else { if ((stattmp = realloc(stattmp, len)) == NULL) { warn("ip_stats"); return; } } } cpucnt = len / sizeof(struct ip_stats); ip_stats_agg(stattmp, &ipstat, cpucnt); printf("%s:\n", name); #define p(f, m) if (ipstat.f || sflag <= 1) \ printf(m, ipstat.f, plural(ipstat.f)) #define p1a(f, m) if (ipstat.f || sflag <= 1) \ printf(m, ipstat.f) p(ips_total, "\t%lu total packet%s received\n"); p(ips_badsum, "\t%lu bad header checksum%s\n"); p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); p1a(ips_tooshort, "\t%lu with data size < data length\n"); p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); p1a(ips_badhlen, "\t%lu with header length < data size\n"); p1a(ips_badlen, "\t%lu with data length < header length\n"); p1a(ips_badoptions, "\t%lu with bad options\n"); p1a(ips_badvers, "\t%lu with incorrect version number\n"); p(ips_fragments, "\t%lu fragment%s received\n"); p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); p(ips_delivered, "\t%lu packet%s for this host\n"); p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); p(ips_forward, "\t%lu packet%s forwarded"); p(ips_fastforward, " (%lu packet%s fast forwarded)"); if (ipstat.ips_forward || sflag <= 1) putchar('\n'); p(ips_cantforward, "\t%lu packet%s not forwardable\n"); p(ips_notmember, "\t%lu packet%s received for unknown multicast group\n"); p(ips_redirectsent, "\t%lu redirect%s sent\n"); p(ips_localout, "\t%lu packet%s sent from this host\n"); p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); p(ips_odropped, "\t%lu output packet%s dropped due to no bufs, etc.\n"); p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); p(ips_ofragments, "\t%lu fragment%s created\n"); p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); free(stattmp); #undef p #undef p1a } static char *icmpnames[] = { "echo reply", "#1", "#2", "destination unreachable", "source quench", "routing redirect", "#6", "#7", "echo", "router advertisement", "router solicitation", "time exceeded", "parameter problem", "time stamp", "time stamp reply", "information request", "information request reply", "address mask request", "address mask reply", }; /* * Dump ICMP statistics. */ void icmp_stats(u_long off __unused, char *name, int af __unused) { struct icmpstat icmpstat, zerostat; int i, first; int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ size_t len; mib[0] = CTL_NET; mib[1] = PF_INET; mib[2] = IPPROTO_ICMP; mib[3] = ICMPCTL_STATS; len = sizeof icmpstat; if (zflag) memset(&zerostat, 0, len); if (sysctl(mib, 4, &icmpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.icmp.stats"); return; } printf("%s:\n", name); #define p(f, m) if (icmpstat.f || sflag <= 1) \ printf(m, icmpstat.f, plural(icmpstat.f)) #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ printf(m, icmpstat.f) #define p2(f, m) if (icmpstat.f || sflag <= 1) \ printf(m, icmpstat.f, plurales(icmpstat.f)) p(icps_error, "\t%lu call%s to icmp_error\n"); p(icps_oldicmp, "\t%lu error%s not generated 'cuz old message was icmp\n"); for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) if (icmpstat.icps_outhist[i] != 0) { if (first) { printf("\tOutput histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", icmpnames[i], icmpstat.icps_outhist[i]); } p(icps_badcode, "\t%lu message%s with bad code fields\n"); p(icps_tooshort, "\t%lu message%s < minimum length\n"); p(icps_checksum, "\t%lu bad checksum%s\n"); p(icps_badlen, "\t%lu message%s with bad length\n"); p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) if (icmpstat.icps_inhist[i] != 0) { if (first) { printf("\tInput histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", icmpnames[i], icmpstat.icps_inhist[i]); } p(icps_reflect, "\t%lu message response%s generated\n"); p2(icps_badaddr, "\t%lu invalid return address%s\n"); p(icps_noroute, "\t%lu no return route%s\n"); #undef p #undef p1a #undef p2 mib[3] = ICMPCTL_MASKREPL; len = sizeof i; if (sysctl(mib, 4, &i, &len, (void *)0, 0) < 0) return; printf("\tICMP address mask responses are %sabled\n", i ? "en" : "dis"); } /* * Dump IGMP statistics structure. */ void igmp_stats(u_long off __unused, char *name, int af __unused) { struct igmpstat igmpstat, zerostat; size_t len = sizeof igmpstat; if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.igmp.stats"); return; } printf("%s:\n", name); #define p(f, m) if (igmpstat.f || sflag <= 1) \ printf(m, igmpstat.f, plural(igmpstat.f)) #define py(f, m) if (igmpstat.f || sflag <= 1) \ printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") p(igps_rcv_total, "\t%u message%s received\n"); p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); py(igps_rcv_queries, "\t%u membership quer%s received\n"); py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); p(igps_rcv_reports, "\t%u membership report%s received\n"); p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); p(igps_snd_reports, "\t%u membership report%s sent\n"); #undef p #undef py } /* * Dump PIM statistics structure. */ void pim_stats(u_long off __unused, char *name, int af1 __unused) { struct pimstat pimstat, zerostat; size_t len = sizeof pimstat; if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { if (errno != ENOENT) warn("sysctl: net.inet.pim.stats"); return; } printf("%s:\n", name); #define p(f, m) if (pimstat.f || sflag <= 1) \ printf(m, pimstat.f, plural(pimstat.f)) #define py(f, m) if (pimstat.f || sflag <= 1) \ printf(m, pimstat.f, pimstat.f != 1 ? "ies" : "y") p(pims_rcv_total_msgs, "\t%llu message%s received\n"); p(pims_rcv_total_bytes, "\t%llu byte%s received\n"); p(pims_rcv_tooshort, "\t%llu message%s received with too few bytes\n"); p(pims_rcv_badsum, "\t%llu message%s received with bad checksum\n"); p(pims_rcv_badversion, "\t%llu message%s received with bad version\n"); p(pims_rcv_registers_msgs, "\t%llu data register message%s received\n"); p(pims_rcv_registers_bytes, "\t%llu data register byte%s received\n"); p(pims_rcv_registers_wrongiif, "\t%llu data register message%s received on wrong iif\n"); p(pims_rcv_badregisters, "\t%llu bad register%s received\n"); p(pims_snd_registers_msgs, "\t%llu data register message%s sent\n"); p(pims_snd_registers_bytes, "\t%llu data register byte%s sent\n"); #undef p #undef py } /* * Pretty print an Internet address (net address + port). */ void inetprint(struct in_addr *in, int port, const char *proto, int numeric_port) { struct servent *sp = 0; char line[80], *cp; int width; if (Wflag) sprintf(line, "%s.", inetname(in)); else sprintf(line, "%.*s.", (Aflag && !numeric_port) ? 12 : 16, inetname(in)); cp = strchr(line, '\0'); if (!numeric_port && port) sp = getservbyport((int)port, proto); if (sp || port == 0) sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); else sprintf(cp, "%d ", ntohs((u_short)port)); width = (Aflag && !Wflag) ? 17 : 21; if (Wflag) printf("%-*s ", width, line); else printf("%-*.*s ", width, width, line); } /* * Construct an Internet address representation. * If numeric_addr has been supplied, give * numeric value, otherwise try for symbolic name. */ char * inetname(struct in_addr *inp) { char *cp; static char line[MAXHOSTNAMELEN]; struct hostent *hp; struct netent *np; cp = 0; if (!numeric_addr && inp->s_addr != INADDR_ANY) { int net = inet_netof(*inp); int lna = inet_lnaof(*inp); if (lna == INADDR_ANY) { np = getnetbyaddr(net, AF_INET); if (np) cp = np->n_name; } if (cp == 0) { hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); if (hp) { cp = hp->h_name; trimdomain(cp, strlen(cp)); } } } if (inp->s_addr == INADDR_ANY) strcpy(line, "*"); else if (cp) { strncpy(line, cp, sizeof(line) - 1); line[sizeof(line) - 1] = '\0'; } else { inp->s_addr = ntohl(inp->s_addr); #define C(x) ((u_int)((x) & 0xff)) sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); } return (line); }