#include /*- * 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. * 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. */ #if 0 #ifndef lint static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95"; #endif /* not lint */ #endif #include __FBSDID("$FreeBSD$"); #include #include #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 #include "netstat.h" char *inetname(struct in_addr *); void inetprint(struct in_addr *, int, const char *, int); #ifdef INET6 static int udp_done, tcp_done, sdp_done; #endif /* INET6 */ #ifdef __rtems__ void rtems_bsd_netstat_inet_init(void) { udp_done = 0; tcp_done = 0; sdp_done = 0; } #endif /* __rtems__ */ static int pcblist_sysctl(int proto, const char *name, char **bufp, int istcp) { const char *mibvar; char *buf; size_t len; switch (proto) { case IPPROTO_TCP: mibvar = "net.inet.tcp.pcblist"; break; case IPPROTO_UDP: mibvar = "net.inet.udp.pcblist"; break; case IPPROTO_DIVERT: mibvar = "net.inet.divert.pcblist"; break; default: mibvar = "net.inet.raw.pcblist"; break; } if (strncmp(name, "sdp", 3) == 0) mibvar = "net.inet.sdp.pcblist"; len = 0; if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { if (errno != ENOENT) warn("sysctl: %s", mibvar); return (0); } if ((buf = malloc(len)) == 0) { warnx("malloc %lu bytes", (u_long)len); return (0); } if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { warn("sysctl: %s", mibvar); free(buf); return (0); } *bufp = buf; return (1); } /* * Copied directly from uipc_socket2.c. We leave out some fields that are in * nested structures that aren't used to avoid extra work. */ static void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb) { xsb->sb_cc = sb->sb_cc; xsb->sb_hiwat = sb->sb_hiwat; xsb->sb_mbcnt = sb->sb_mbcnt; xsb->sb_mcnt = sb->sb_mcnt; xsb->sb_ccnt = sb->sb_ccnt; xsb->sb_mbmax = sb->sb_mbmax; xsb->sb_lowat = sb->sb_lowat; xsb->sb_flags = sb->sb_flags; xsb->sb_timeo = sb->sb_timeo; } int sotoxsocket(struct socket *so, struct xsocket *xso) { struct protosw proto; struct domain domain; bzero(xso, sizeof *xso); xso->xso_len = sizeof *xso; xso->xso_so = so; xso->so_type = so->so_type; xso->so_options = so->so_options; xso->so_linger = so->so_linger; xso->so_state = so->so_state; xso->so_pcb = so->so_pcb; if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0) return (-1); xso->xso_protocol = proto.pr_protocol; if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0) return (-1); xso->xso_family = domain.dom_family; xso->so_qlen = so->so_qlen; xso->so_incqlen = so->so_incqlen; xso->so_qlimit = so->so_qlimit; xso->so_timeo = so->so_timeo; xso->so_error = so->so_error; xso->so_oobmark = so->so_oobmark; sbtoxsockbuf(&so->so_snd, &xso->so_snd); sbtoxsockbuf(&so->so_rcv, &xso->so_rcv); return (0); } static int pcblist_kvm(u_long off, char **bufp, int istcp) { struct inpcbinfo pcbinfo; struct inpcbhead listhead; struct inpcb *inp; struct xinpcb xi; struct xinpgen xig; struct xtcpcb xt; struct socket so; struct xsocket *xso; char *buf, *p; size_t len; if (off == 0) return (0); kread(off, &pcbinfo, sizeof(pcbinfo)); if (istcp) len = 2 * sizeof(xig) + (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) * sizeof(struct xtcpcb); else len = 2 * sizeof(xig) + (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) * sizeof(struct xinpcb); if ((buf = malloc(len)) == 0) { warnx("malloc %lu bytes", (u_long)len); return (0); } p = buf; #define COPYOUT(obj, size) do { \ if (len < (size)) { \ warnx("buffer size exceeded"); \ goto fail; \ } \ bcopy((obj), p, (size)); \ len -= (size); \ p += (size); \ } while (0) #define KREAD(off, buf, len) do { \ if (kread((uintptr_t)(off), (buf), (len)) != 0) \ goto fail; \ } while (0) /* Write out header. */ xig.xig_len = sizeof xig; xig.xig_count = pcbinfo.ipi_count; xig.xig_gen = pcbinfo.ipi_gencnt; xig.xig_sogen = 0; COPYOUT(&xig, sizeof xig); /* Walk the PCB list. */ xt.xt_len = sizeof xt; xi.xi_len = sizeof xi; if (istcp) xso = &xt.xt_socket; else xso = &xi.xi_socket; KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead)); LIST_FOREACH(inp, &listhead, inp_list) { if (istcp) { KREAD(inp, &xt.xt_inp, sizeof(*inp)); inp = &xt.xt_inp; } else { KREAD(inp, &xi.xi_inp, sizeof(*inp)); inp = &xi.xi_inp; } if (inp->inp_gencnt > pcbinfo.ipi_gencnt) continue; if (istcp) { if (inp->inp_ppcb == NULL) bzero(&xt.xt_tp, sizeof xt.xt_tp); else if (inp->inp_flags & INP_TIMEWAIT) { bzero(&xt.xt_tp, sizeof xt.xt_tp); xt.xt_tp.t_state = TCPS_TIME_WAIT; } else KREAD(inp->inp_ppcb, &xt.xt_tp, sizeof xt.xt_tp); } if (inp->inp_socket) { KREAD(inp->inp_socket, &so, sizeof(so)); if (sotoxsocket(&so, xso) != 0) goto fail; } else { bzero(xso, sizeof(*xso)); if (istcp) xso->xso_protocol = IPPROTO_TCP; } if (istcp) COPYOUT(&xt, sizeof xt); else COPYOUT(&xi, sizeof xi); } /* Reread the pcbinfo and write out the footer. */ kread(off, &pcbinfo, sizeof(pcbinfo)); xig.xig_count = pcbinfo.ipi_count; xig.xig_gen = pcbinfo.ipi_gencnt; COPYOUT(&xig, sizeof xig); *bufp = buf; return (1); fail: free(buf); return (0); #undef COPYOUT #undef KREAD } /* * 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. */ void protopr(u_long off, const char *name, int af1, int proto) { int istcp; char *buf; const char *vchar; struct tcpcb *tp = NULL; struct inpcb *inp; struct xinpgen *xig, *oxig; struct xsocket *so; struct xtcp_timer *timer; istcp = 0; switch (proto) { case IPPROTO_TCP: #ifdef INET6 if (strncmp(name, "sdp", 3) != 0) { if (tcp_done != 0) return; else tcp_done = 1; } else { if (sdp_done != 0) return; else sdp_done = 1; } #endif istcp = 1; break; case IPPROTO_UDP: #ifdef INET6 if (udp_done != 0) return; else udp_done = 1; #endif break; } if (live) { if (!pcblist_sysctl(proto, name, &buf, istcp)) return; } else { if (!pcblist_kvm(off, &buf, istcp)) return; } oxig = xig = (struct xinpgen *)buf; for (xig = (struct xinpgen *)((char *)xig + xig->xig_len); xig->xig_len > sizeof(struct xinpgen); xig = (struct xinpgen *)((char *)xig + xig->xig_len)) { if (istcp) { timer = &((struct xtcpcb *)xig)->xt_timer; tp = &((struct xtcpcb *)xig)->xt_tp; inp = &((struct xtcpcb *)xig)->xt_inp; so = &((struct xtcpcb *)xig)->xt_socket; } else { inp = &((struct xinpcb *)xig)->xi_inp; so = &((struct xinpcb *)xig)->xi_socket; timer = NULL; } /* Ignore sockets for protocols other than the desired one. */ if (so->xso_protocol != proto) continue; /* Ignore PCBs which were freed during copyout. */ if (inp->inp_gencnt > oxig->xig_gen) continue; if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0) #ifdef INET6 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0) #endif /* INET6 */ || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0 #ifdef INET6 && (inp->inp_vflag & INP_IPV6) == 0 #endif /* INET6 */ )) ) continue; if (!aflag && ( (istcp && tp->t_state == TCPS_LISTEN) || (af1 == AF_INET && inet_lnaof(inp->inp_laddr) == INADDR_ANY) #ifdef INET6 || (af1 == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) #endif /* INET6 */ || (af1 == 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 )) )) continue; if (!protopr_initialized) { 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("%-*s ", 2 * (int)sizeof(void *), "Tcpcb"); if (Lflag) printf((Aflag && !Wflag) ? "%-5.5s %-14.14s %-18.18s" : "%-5.5s %-14.14s %-22.22s", "Proto", "Listen", "Local Address"); else if (Tflag) printf((Aflag && !Wflag) ? "%-5.5s %-6.6s %-6.6s %-6.6s %-18.18s %s" : "%-5.5s %-6.6s %-6.6s %-6.6s %-22.22s %s", "Proto", "Rexmit", "OOORcv", "0-win", "Local Address", "Foreign Address"); else { printf((Aflag && !Wflag) ? "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" : "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s", "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address"); if (!xflag) printf(" (state)"); } if (xflag) { 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", "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS", "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA", "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX"); printf(" %7.7s %7.7s %7.7s %7.7s %7.7s %7.7s", "rexmt", "persist", "keep", "2msl", "delack", "rcvtime"); } putchar('\n'); protopr_initialized = 1; } if (Lflag && so->so_qlimit == 0) continue; if (Aflag) { if (istcp) printf("%*lx ", 2 * (int)sizeof(void *), (u_long)inp->inp_ppcb); else printf("%*lx ", 2 * (int)sizeof(void *), (u_long)so->so_pcb); } #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 " : " "; if (istcp && (tp->t_flags & TF_TOE) != 0) printf("%-3.3s%-2.2s ", "toe", vchar); else printf("%-3.3s%-2.2s ", name, vchar); if (Lflag) { char buf1[15]; snprintf(buf1, 15, "%d/%d/%d", so->so_qlen, so->so_incqlen, so->so_qlimit); printf("%-14.14s ", buf1); } else if (Tflag) { if (istcp) printf("%6u %6u %6u ", tp->t_sndrexmitpack, tp->t_rcvoopack, tp->t_sndzerowin); } else { printf("%6u %6u ", 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 (xflag) { printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u", so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt, so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt, so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat, so->so_rcv.sb_lowat, so->so_snd.sb_lowat, so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt, so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax); if (timer != NULL) printf(" %4d.%02d %4d.%02d %4d.%02d %4d.%02d %4d.%02d %4d.%02d", timer->tt_rexmt / 1000, (timer->tt_rexmt % 1000) / 10, timer->tt_persist / 1000, (timer->tt_persist % 1000) / 10, timer->tt_keep / 1000, (timer->tt_keep % 1000) / 10, timer->tt_2msl / 1000, (timer->tt_2msl % 1000) / 10, timer->tt_delack / 1000, (timer->tt_delack % 1000) / 10, timer->t_rcvtime / 1000, (timer->t_rcvtime % 1000) / 10); } if (istcp && !Lflag && !xflag && !Tflag) { 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'); } if (xig != oxig && xig->xig_gen != oxig->xig_gen) { if (oxig->xig_count > xig->xig_count) { printf("Some %s sockets may have been deleted.\n", name); } else if (oxig->xig_count < xig->xig_count) { printf("Some %s sockets may have been created.\n", name); } else { printf( "Some %s sockets may have been created or deleted.\n", name); } } free(buf); } /* * Dump TCP statistics structure. */ void tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct tcpstat tcpstat, zerostat; size_t len = sizeof tcpstat; #ifdef INET6 if (tcp_done != 0) return; else tcp_done = 1; #endif if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.tcp.stats"); return; } } else kread(off, &tcpstat, len); 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, pluralies(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"); p(tcps_sndrexmitbad, "\t\t%lu data packet%s unnecessarily retransmitted\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"); p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\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_badrst, "\t%lu ignored RSTs in the window%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_finwait2_drops, "\t%lu Connection%s (fin_wait_2) dropped because of 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"); p3(tcps_sc_added, "\t%lu syncache entr%s 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"); p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n"); p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n"); p(tcps_sc_recvcookie, "\t%lu cookie%s received\n"); p(tcps_hc_added, "\t%lu hostcache entrie%s added\n"); p1a(tcps_hc_bucketoverflow, "\t\t%lu bucket overflow\n"); p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n"); p(tcps_sack_rexmits, "\t%lu segment rexmit%s in SACK recovery episodes\n"); p(tcps_sack_rexmit_bytes, "\t%lu byte rexmit%s in SACK recovery episodes\n"); p(tcps_sack_rcv_blocks, "\t%lu SACK option%s (SACK blocks) received\n"); p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n"); p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n"); p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n"); p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n"); p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n"); p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n"); p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n"); #undef p #undef p1a #undef p2 #undef p2a #undef p3 } /* * Dump UDP statistics structure. */ void udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct udpstat udpstat, zerostat; size_t len = sizeof udpstat; u_long delivered; #ifdef INET6 if (udp_done != 0) return; else udp_done = 1; #endif if (live) { 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; } } else kread(off, &udpstat, len); 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 undelivered\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"); /* the next statistic is cumulative in udps_noportbcast */ p(udps_filtermcast, "\t%lu time%s multicast source filter matched\n"); #undef p #undef p1a } /* * Dump CARP statistics structure. */ void carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct carpstats carpstat, zerostat; size_t len = sizeof(struct carpstats); if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { if (errno != ENOENT) warn("sysctl: net.inet.carp.stats"); return; } } else { if (off == 0) return; kread(off, &carpstat, len); } printf("%s:\n", name); #define p(f, m) if (carpstat.f || sflag <= 1) \ printf(m, (uintmax_t)carpstat.f, plural(carpstat.f)) #define p2(f, m) if (carpstat.f || sflag <= 1) \ printf(m, (uintmax_t)carpstat.f) p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); #if notyet p(carps_ostates, "\t\t%s state update%s sent\n"); #endif #undef p #undef p2 } /* * Dump IP statistics structure. */ void ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct ipstat ipstat, zerostat; size_t len = sizeof ipstat; if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.ip.stats", &ipstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.ip.stats"); return; } } else kread(off, &ipstat, len); 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"); #undef p #undef p1a } /* * Dump ARP statistics structure. */ void arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct arpstat arpstat, zerostat; size_t len = sizeof(arpstat); if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.link.ether.arp.stats"); return; } } else kread(off, &arpstat, len); printf("%s:\n", name); #define p(f, m) if (arpstat.f || sflag <= 1) \ printf(m, arpstat.f, plural(arpstat.f)) #define p2(f, m) if (arpstat.f || sflag <= 1) \ printf(m, arpstat.f, pluralies(arpstat.f)) p(txrequests, "\t%lu ARP request%s sent\n"); p2(txreplies, "\t%lu ARP repl%s sent\n"); p(rxrequests, "\t%lu ARP request%s received\n"); p2(rxreplies, "\t%lu ARP repl%s received\n"); p(received, "\t%lu ARP packet%s received\n"); p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n"); p(timeouts, "\t%lu ARP entry%s timed out\n"); p(dupips, "\t%lu Duplicate IP%s seen\n"); #undef p #undef p2 } static const char *const icmpnames[ICMP_MAXTYPE + 1] = { "echo reply", /* RFC 792 */ "#1", "#2", "destination unreachable", /* RFC 792 */ "source quench", /* RFC 792 */ "routing redirect", /* RFC 792 */ "#6", "#7", "echo", /* RFC 792 */ "router advertisement", /* RFC 1256 */ "router solicitation", /* RFC 1256 */ "time exceeded", /* RFC 792 */ "parameter problem", /* RFC 792 */ "time stamp", /* RFC 792 */ "time stamp reply", /* RFC 792 */ "information request", /* RFC 792 */ "information request reply", /* RFC 792 */ "address mask request", /* RFC 950 */ "address mask reply", /* RFC 950 */ "#19", "#20", "#21", "#22", "#23", "#24", "#25", "#26", "#27", "#28", "#29", "icmp traceroute", /* RFC 1393 */ "datagram conversion error", /* RFC 1475 */ "mobile host redirect", "IPv6 where-are-you", "IPv6 i-am-here", "mobile registration req", "mobile registration reply", "domain name request", /* RFC 1788 */ "domain name reply", /* RFC 1788 */ "icmp SKIP", "icmp photuris", /* RFC 2521 */ }; /* * Dump ICMP statistics. */ void icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct icmpstat icmpstat, zerostat; int i, first; size_t len; len = sizeof icmpstat; if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.icmp.stats"); return; } } else kread(off, &icmpstat, len); 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 in response to an icmp message\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; } if (icmpnames[i] != NULL) printf("\t\t%s: %lu\n", icmpnames[i], icmpstat.icps_outhist[i]); else printf("\t\tunknown ICMP #%d: %lu\n", i, icmpstat.icps_outhist[i]); } p(icps_badcode, "\t%lu message%s with bad code fields\n"); p(icps_tooshort, "\t%lu message%s less than the minimum length\n"); p(icps_checksum, "\t%lu message%s with bad checksum\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; } if (icmpnames[i] != NULL) printf("\t\t%s: %lu\n", icmpnames[i], icmpstat.icps_inhist[i]); else printf("\t\tunknown ICMP #%d: %lu\n", 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 if (live) { len = sizeof i; if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) < 0) return; printf("\tICMP address mask responses are %sabled\n", i ? "en" : "dis"); } } #ifndef BURN_BRIDGES /* * Dump IGMP statistics structure (pre 8.x kernel). */ static void igmp_stats_live_old(const char *name) { struct oigmpstat oigmpstat, zerostat; size_t len = sizeof(oigmpstat); if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { warn("sysctl: net.inet.igmp.stats"); return; } printf("%s:\n", name); #define p(f, m) if (oigmpstat.f || sflag <= 1) \ printf(m, oigmpstat.f, plural(oigmpstat.f)) #define py(f, m) if (oigmpstat.f || sflag <= 1) \ printf(m, oigmpstat.f, oigmpstat.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 } #endif /* !BURN_BRIDGES */ /* * Dump IGMP statistics structure. */ void igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct igmpstat igmpstat, zerostat; size_t len; #ifndef BURN_BRIDGES if (live) { /* * Detect if we are being run against a pre-IGMPv3 kernel. * We cannot do this for a core file as the legacy * struct igmpstat has no size field, nor does it * export it in any readily-available symbols. */ len = 0; if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL, 0) < 0) { warn("sysctl: net.inet.igmp.stats"); return; } if (len < sizeof(igmpstat)) { igmp_stats_live_old(name); return; } } #endif /* !BURN_BRIDGES */ len = sizeof(igmpstat); if (live) { 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; } } else { len = sizeof(igmpstat); kread(off, &igmpstat, len); } if (igmpstat.igps_version != IGPS_VERSION_3) { warnx("%s: version mismatch (%d != %d)", __func__, igmpstat.igps_version, IGPS_VERSION_3); } if (igmpstat.igps_len != IGPS_VERSION3_LEN) { warnx("%s: size mismatch (%d != %d)", __func__, igmpstat.igps_len, IGPS_VERSION3_LEN); } printf("%s:\n", name); #define p64(f, m) if (igmpstat.f || sflag <= 1) \ printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f)) #define py64(f, m) if (igmpstat.f || sflag <= 1) \ printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f)) p64(igps_rcv_total, "\t%ju message%s received\n"); p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n"); p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n"); py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n"); py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n"); py64(igps_rcv_badqueries, "\t%ju membership quer%s received with invalid field(s)\n"); py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n"); py64(igps_rcv_group_queries, "\t%ju group quer%s received\n"); py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n"); py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n"); p64(igps_rcv_reports, "\t%ju membership report%s received\n"); p64(igps_rcv_badreports, "\t%ju membership report%s received with invalid field(s)\n"); p64(igps_rcv_ourreports, "\t%ju membership report%s received for groups to which we belong\n"); p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n"); p64(igps_snd_reports, "\t%ju membership report%s sent\n"); #undef p64 #undef py64 } /* * Dump PIM statistics structure. */ void pim_stats(u_long off __unused, const char *name, int af1 __unused, int proto __unused) { struct pimstat pimstat, zerostat; size_t len = sizeof pimstat; if (live) { 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; } } else { if (off == 0) return; kread(off, &pimstat, len); } printf("%s:\n", name); #define p(f, m) if (pimstat.f || sflag <= 1) \ printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) #define py(f, m) if (pimstat.f || sflag <= 1) \ printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") p(pims_rcv_total_msgs, "\t%ju message%s received\n"); p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); p(pims_snd_registers_bytes, "\t%ju 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 num_port) { struct servent *sp = 0; char line[80], *cp; int width; if (Wflag) sprintf(line, "%s.", inetname(in)); else sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); cp = index(line, '\0'); if (!num_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) ? 18 : 22; 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) { strlcpy(line, cp, sizeof(line)); } 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); }