/* $NetBSD: inet.c,v 1.37 1999/07/01 18:40:35 itojun Exp $ */ /* * Copyright (c) 1983, 1988, 1993 * 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. */ #include #ifndef lint #if 0 static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94"; #else __RCSID("$NetBSD: inet.c,v 1.37 1999/07/01 18:40:35 itojun Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET6 #include #endif #include #include #include #include #include #include #define TCPSTATES #include #define TCPTIMERS #include #include #include #include #include #ifdef IPSEC #include #endif #include #include #include #include #include #include "netstat.h" struct inpcb inpcb; struct tcpcb tcpcb; struct socket sockb; char *inetname __P((struct in_addr *)); void inetprint __P((struct in_addr *, u_int16_t, const char *, int)); /* * 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 width; void protopr(off, name) u_long off; char *name; { struct inpcbtable table; struct inpcb *head, *next, *prev; struct inpcb inpcb; int istcp, compact; static int first = 1; static char *shorttcpstates[] = { "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", "LASTAK", "FWAIT2", "TMWAIT", }; if (off == 0) return; istcp = strcmp(name, "tcp") == 0; kread(off, (char *)&table, sizeof table); prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue.cqh_first; next = table.inpt_queue.cqh_first; compact = 0; if (Aflag) { if (!nflag) width = 18; else { width = 21; compact = 1; } } else width = 22; while (next != head) { kread((u_long)next, (char *)&inpcb, sizeof inpcb); if (inpcb.inp_queue.cqe_prev != prev) { printf("???\n"); break; } prev = next; next = inpcb.inp_queue.cqe_next; if (!aflag && inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) continue; kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof (sockb)); if (istcp) { kread((u_long)inpcb.inp_ppcb, (char *)&tcpcb, sizeof (tcpcb)); } if (first) { printf("Active Internet connections"); if (aflag) printf(" (including servers)"); putchar('\n'); if (Aflag) printf("%-8.8s ", "PCB"); printf("%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", width, width, "Local Address", width, width, "Foreign Address", "State"); first = 0; } if (Aflag) { if (istcp) printf("%8lx ", (u_long) inpcb.inp_ppcb); else printf("%8lx ", (u_long) prev); } printf("%-5.5s %6ld %6ld%s", name, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc, compact ? "" : " "); if (nflag) { inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 1); inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, 1); } else if (inpcb.inp_flags & INP_ANONPORT) { inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 1); inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, 0); } else { inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 0); inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, inpcb.inp_lport != inpcb.inp_fport); } if (istcp) { if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) printf(" %d", tcpcb.t_state); else printf(" %s", compact ? shorttcpstates[tcpcb.t_state] : tcpstates[tcpcb.t_state]); } putchar('\n'); } } /* * Dump TCP statistics structure. */ void tcp_stats(off, name) u_long off; char *name; { struct tcpstat tcpstat; if (off == 0) return; printf ("%s:\n", name); kread(off, (char *)&tcpstat, sizeof (tcpstat)); #define ps(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f) #define p(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f, plural(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 p2s(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"); p2s(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"); ps(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_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_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"); p2(tcps_persisttimeo, tcps_persistdrops, "\t%lu persist timeout%s (resulting in %lu dropped connection%s)\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_pcbhashmiss, "\t%lu PCB hash miss%s\n"); ps(tcps_noport, "\t%lu dropped due to no socket\n"); p(tcps_connsdrained, "\t%lu connection%s drained due to memory shortage\n"); p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); ps(tcps_sc_added, "\t%lu SYN cache entries added\n"); p(tcps_sc_collisions, "\t\t%lu hash collision%s\n"); ps(tcps_sc_completed, "\t\t%lu completed\n"); ps(tcps_sc_aborted, "\t\t%lu aborted (no space to build PCB)\n"); ps(tcps_sc_timed_out, "\t\t%lu timed out\n"); ps(tcps_sc_overflowed, "\t\t%lu dropped due to overflow\n"); ps(tcps_sc_bucketoverflow, "\t\t%lu dropped due to bucket overflow\n"); ps(tcps_sc_reset, "\t\t%lu dropped due to RST\n"); ps(tcps_sc_unreach, "\t\t%lu dropped due to ICMP unreachable\n"); p(tcps_sc_retransmitted, "\t%lu SYN,ACK%s retransmitted\n"); p(tcps_sc_dupesyn, "\t%lu duplicate SYN%s received for entries already in the cache\n"); p(tcps_sc_dropped, "\t%lu SYN%s dropped (no route or no space)\n"); #undef p #undef ps #undef p2 #undef p2s #undef p3 } /* * Dump UDP statistics structure. */ void udp_stats(off, name) u_long off; char *name; { struct udpstat udpstat; u_long delivered; if (off == 0) return; printf("%s:\n", name); kread(off, (char *)&udpstat, sizeof (udpstat)); #define ps(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f) #define p(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f, plural(udpstat.f)) #define p3(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f, plurales(udpstat.f)) p(udps_ipackets, "\t%lu datagram%s received\n"); ps(udps_hdrops, "\t%lu with incomplete header\n"); ps(udps_badlen, "\t%lu with bad data length field\n"); ps(udps_badsum, "\t%lu with bad checksum\n"); ps(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"); ps(udps_fullsock, "\t%lu dropped due to full socket buffers\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); p3(udps_pcbhashmiss, "\t%lu PCB hash miss%s\n"); p(udps_opackets, "\t%lu datagram%s output\n"); #undef ps #undef p #undef p3 } /* * Dump IP statistics structure. */ void ip_stats(off, name) u_long off; char *name; { struct ipstat ipstat; if (off == 0) return; kread(off, (char *)&ipstat, sizeof (ipstat)); printf("%s:\n", name); #define ps(f, m) if (ipstat.f || sflag <= 1) \ printf(m, ipstat.f) #define p(f, m) if (ipstat.f || sflag <= 1) \ printf(m, ipstat.f, plural(ipstat.f)) p(ips_total, "\t%lu total packet%s received\n"); p(ips_badsum, "\t%lu bad header checksum%s\n"); ps(ips_toosmall, "\t%lu with size smaller than minimum\n"); ps(ips_tooshort, "\t%lu with data size < data length\n"); ps(ips_toolong, "\t%lu with length > max ip packet size\n"); ps(ips_badhlen, "\t%lu with header length < data size\n"); ps(ips_badlen, "\t%lu with data length < header length\n"); ps(ips_badoptions, "\t%lu with bad options\n"); ps(ips_badvers, "\t%lu with incorrect version number\n"); p(ips_fragments, "\t%lu fragment%s received"); p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); p(ips_badfrags, "\t%lu malformed fragment%s dropped\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_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"); #undef ps #undef p } static char *icmpnames[] = { "echo reply", "#1", "#2", "destination unreachable", "source quench", "routing redirect", "#6", "#7", "echo", "#9", "#10", "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(off, name) u_long off; char *name; { struct icmpstat icmpstat; int i, first; if (off == 0) return; kread(off, (char *)&icmpstat, sizeof (icmpstat)); printf("%s:\n", name); #define p(f, m) if (icmpstat.f || sflag <= 1) \ printf(m, icmpstat.f, plural(icmpstat.f)) p(icps_error, "\t%lu call%s to icmp_error\n"); p(icps_oldicmp, "\t%lu error%s not generated because 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"); 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"); #undef p } /* * Dump IGMP statistics structure. */ void igmp_stats(off, name) u_long off; char *name; { struct igmpstat igmpstat; if (off == 0) return; kread(off, (char *)&igmpstat, sizeof (igmpstat)); 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%lu message%s received\n"); p(igps_rcv_tooshort, "\t%lu message%s received with too few bytes\n"); p(igps_rcv_badsum, "\t%lu message%s received with bad checksum\n"); py(igps_rcv_queries, "\t%lu membership quer%s received\n"); py(igps_rcv_badqueries, "\t%lu membership quer%s received with invalid field(s)\n"); p(igps_rcv_reports, "\t%lu membership report%s received\n"); p(igps_rcv_badreports, "\t%lu membership report%s received with invalid field(s)\n"); p(igps_rcv_ourreports, "\t%lu membership report%s received for groups to which we belong\n"); p(igps_snd_reports, "\t%lu membership report%s sent\n"); #undef p #undef py } #ifdef IPSEC static char *ipsec_ahnames[] = { "none", "hmac MD5", "hmac SHA1", "keyed MD5", "keyed SHA1", "null", }; static char *ipsec_espnames[] = { "none", "DES CBC", "3DES CBC", "simple", "blowfish CBC", "CAST128 CBC", "DES derived IV", }; /* * Dump IPSEC statistics structure. */ void ipsec_stats(off, name) u_long off; char *name; { struct ipsecstat ipsecstat; int first, proto; if (off == 0) return; printf ("%s:\n", name); kread(off, (char *)&ipsecstat, sizeof (ipsecstat)); #define p(f, m) if (ipsecstat.f || sflag <= 1) \ printf(m, ipsecstat.f, plural(ipsecstat.f)) p(in_success, "\t%lu inbound packet%s processed successfully\n"); p(in_polvio, "\t%lu inbound packet%s violated process security " "policy\n"); p(in_nosa, "\t%lu inbound packet%s with no SA available\n"); p(in_inval, "\t%lu inbound packet%s failed processing due to EINVAL\n"); p(in_badspi, "\t%lu inbound packet%s failed getting SPI\n"); p(in_ahreplay, "\t%lu inbound packet%s failed on AH replay check\n"); p(in_espreplay, "\t%lu inbound packet%s failed on ESP replay check\n"); p(in_ahauthsucc, "\t%lu inbound packet%s considered authentic\n"); p(in_ahauthfail, "\t%lu inbound packet%s failed on authentication\n"); for (first = 1, proto = 0; proto < SADB_AALG_MAX; proto++) { if (ipsecstat.in_ahhist[proto] <= 0) continue; if (first) { printf("\tAH input histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", ipsec_ahnames[proto], ipsecstat.in_ahhist[proto]); } for (first = 1, proto = 0; proto < SADB_EALG_MAX; proto++) { if (ipsecstat.in_esphist[proto] <= 0) continue; if (first) { printf("\tESP input histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", ipsec_espnames[proto], ipsecstat.in_esphist[proto]); } p(out_success, "\t%lu outbound packet%s processed successfully\n"); p(out_polvio, "\t%lu outbound packet%s violated process security " "policy\n"); p(out_nosa, "\t%lu outbound packet%s with no SA available\n"); p(out_inval, "\t%lu outbound packet%s failed processing due to " "EINVAL\n"); p(out_noroute, "\t%lu outbound packet%s with no route\n"); for (first = 1, proto = 0; proto < SADB_AALG_MAX; proto++) { if (ipsecstat.out_ahhist[proto] <= 0) continue; if (first) { printf("\tAH output histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", ipsec_ahnames[proto], ipsecstat.out_ahhist[proto]); } for (first = 1, proto = 0; proto < SADB_EALG_MAX; proto++) { if (ipsecstat.out_esphist[proto] <= 0) continue; if (first) { printf("\tESP output histogram:\n"); first = 0; } printf("\t\t%s: %lu\n", ipsec_espnames[proto], ipsecstat.out_esphist[proto]); } #undef p } #endif /*IPSEC*/ /* * Pretty print an Internet address (net address + port). * If the nflag was specified, use numbers instead of names. */ void inetprint(in, port, proto, numeric) struct in_addr *in; u_int16_t port; const char *proto; int numeric; { struct servent *sp = 0; char line[80], *cp; size_t space; (void)snprintf(line, sizeof line, "%.*s.", (Aflag && !nflag) ? 12 : 16, inetname(in)); cp = strchr(line, '\0'); if (!numeric && port) sp = getservbyport((int)port, proto); space = sizeof line - (cp-line); if (sp || port == 0) (void)snprintf(cp, space, "%.8s", sp ? sp->s_name : "*"); else (void)snprintf(cp, space, "%u", ntohs(port)); (void)printf(" %-*.*s", width, width, line); } /* * Construct an Internet address representation. * If the nflag has been supplied, give * numeric value, otherwise try for symbolic name. */ char * inetname(inp) struct in_addr *inp; { char *cp; static char line[50]; struct hostent *hp; struct netent *np; static char domain[MAXHOSTNAMELEN + 1]; static int first = 1; if (first && !nflag) { first = 0; if (gethostname(domain, sizeof domain) == 0) { domain[sizeof(domain) - 1] = '\0'; if ((cp = strchr(domain, '.'))) (void) strcpy(domain, cp + 1); else domain[0] = 0; } else domain[0] = 0; } cp = 0; if (!nflag && 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) { if ((cp = strchr(hp->h_name, '.')) && !strcmp(cp + 1, domain)) *cp = 0; cp = hp->h_name; } } } if (inp->s_addr == INADDR_ANY) strncpy(line, "*", sizeof line); else if (cp) strncpy(line, cp, sizeof line); else { inp->s_addr = ntohl(inp->s_addr); #define C(x) ((x) & 0xff) (void)snprintf(line, sizeof line, "%u.%u.%u.%u", C(inp->s_addr >> 24), C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); #undef C } line[sizeof(line) - 1] = '\0'; return (line); } /* * Dump the contents of a TCP PCB. */ void tcp_dump(pcbaddr) u_long pcbaddr; { struct tcpcb tcpcb; int i; kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); printf("Timers:\n"); for (i = 0; i < TCPT_NTIMERS; i++) printf("\t%s: %u", tcptimers[i], tcpcb.t_timer[i]); printf("\n\n"); if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) printf("State: %d", tcpcb.t_state); else printf("State: %s", tcpstates[tcpcb.t_state]); printf(", flags 0x%x, inpcb 0x%lx\n\n", tcpcb.t_flags, (u_long)tcpcb.t_inpcb); printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, tcpcb.t_rxtcur, tcpcb.t_dupacks); printf("peermss %u, ourmss %u, segsz %u\n\n", tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz); printf("snd_una %u, snd_nxt %u, snd_up %u\n", tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); printf("idle %d, rtt %d, rtseq %u, srtt %d, rttvar %d, rttmin %d, " "max_sndwnd %lu\n\n", tcpcb.t_idle, tcpcb.t_rtt, tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, tcpcb.max_sndwnd); printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, tcpcb.t_iobc, tcpcb.t_softerror); printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, tcpcb.requested_s_scale); printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); }