/* $OpenBSD: inet.c,v 1.87 2004/04/28 01:53:45 mcbride Exp $ */ /* $NetBSD: inet.c,v 1.14 1995/10/03 21:42:37 thorpej 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. 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. */ #ifndef lint #if 0 static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94"; #else static const char *rcsid = "$OpenBSD: inet.c,v 1.87 2004/04/28 01:53:45 mcbride Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #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 #include #include #include #include #include #include #include "netstat.h" #include #include #include struct inpcb inpcb; struct tcpcb tcpcb; struct socket sockb; static void protopr0(u_long, char *, int); char *inetname(struct in_addr *); void inetprint(struct in_addr *, in_port_t, char *, int); #ifdef INET6 char *inet6name(struct in6_addr *); void inet6print(struct in6_addr *, int, char *, int); #endif /* * 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, char *name) { protopr0(off, name, AF_INET); } #ifdef INET6 void ip6protopr(u_long off, char *name) { protopr0(off, name, AF_INET6); } #endif static void protopr0(u_long off, char *name, int af) { struct inpcbtable table; struct inpcb *head, *next, *prev; struct inpcb inpcb; int istcp, israw; int first = 1; char *name0; char namebuf[20]; name0 = name; if (off == 0) return; istcp = strcmp(name, "tcp") == 0; israw = strncmp(name, "ip", 2) == 0; kread(off, (char *)&table, sizeof table); prev = head = (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue.cqh_first; next = table.inpt_queue.cqh_first; 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; switch (af) { case AF_INET: if ((inpcb.inp_flags & INP_IPV6) != 0) continue; break; case AF_INET6: if ((inpcb.inp_flags & INP_IPV6) == 0) continue; break; default: break; } 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("%-*.*s %-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n", PLEN, PLEN, "PCB", "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address", "(state)"); else printf("%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n", "Proto", "Recv-Q", "Send-Q", "Local Address", "Foreign Address", "(state)"); first = 0; } if (Aflag) { if (istcp) printf("%*p ", PLEN, inpcb.inp_ppcb); else printf("%*p ", PLEN, prev); } #ifdef INET6 if (inpcb.inp_flags & INP_IPV6 && !israw) { strlcpy(namebuf, name0, sizeof namebuf); strlcat(namebuf, "6", sizeof namebuf); name = namebuf; } else name = name0; #endif printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc); #ifdef INET6 if (inpcb.inp_flags & INP_IPV6) { inet6print(&inpcb.inp_laddr6, (int)inpcb.inp_lport, name, 1); inet6print(&inpcb.inp_faddr6, (int)inpcb.inp_fport, name, 0); } else #endif { inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport, name, 1); inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport, name, 0); } if (istcp) { if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) printf(" %d", tcpcb.t_state); else printf(" %s", tcpstates[tcpcb.t_state]); } else if (israw) { struct protoent *pe = NULL; u_int8_t proto; #ifdef INET6 if (inpcb.inp_flags & INP_IPV6) proto = inpcb.inp_ipv6.ip6_nxt; else #endif proto = inpcb.inp_ip.ip_p; if (!nflag) pe = getprotobynumber(proto); if (pe) printf(" %s", pe->p_name); else printf(" %u", proto); } putchar('\n'); } } /* * Dump TCP statistics structure. */ void tcp_stats(u_long off, char *name) { struct tcpstat tcpstat; if (off == 0) return; printf("%s:\n", name); kread(off, (char *)&tcpstat, sizeof (tcpstat)); #define p(f, m) if (tcpstat.f || sflag <= 1) \ printf(m, tcpstat.f, plural(tcpstat.f)) #define p1(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%u packet%s sent\n"); p2(tcps_sndpack,tcps_sndbyte, "\t\t%u data packet%s (%qd byte%s)\n"); p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t%u data packet%s (%qd byte%s) retransmitted\n"); p(tcps_sndrexmitfast, "\t\t%qd fast retransmitted packet%s\n"); p2a(tcps_sndacks, tcps_delack, "\t\t%u ack-only packet%s (%u delayed)\n"); p(tcps_sndurg, "\t\t%u URG only packet%s\n"); p(tcps_sndprobe, "\t\t%u window probe packet%s\n"); p(tcps_sndwinup, "\t\t%u window update packet%s\n"); p(tcps_sndctrl, "\t\t%u control packet%s\n"); p(tcps_outhwcsum, "\t\t%u packet%s hardware-checksummed\n"); p(tcps_rcvtotal, "\t%u packet%s received\n"); p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%u ack%s (for %qd byte%s)\n"); p(tcps_rcvdupack, "\t\t%u duplicate ack%s\n"); p(tcps_rcvacktoomuch, "\t\t%u ack%s for unsent data\n"); p(tcps_rcvacktooold, "\t\t%u ack%s for old data\n"); p2(tcps_rcvpack, tcps_rcvbyte, "\t\t%u packet%s (%qu byte%s) received in-sequence\n"); p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t%u completely duplicate packet%s (%qd byte%s)\n"); p(tcps_pawsdrop, "\t\t%u old duplicate packet%s\n"); p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t%u packet%s with some duplicate data (%qd byte%s duplicated)\n"); p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t%u out-of-order packet%s (%qd byte%s)\n"); p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t%u packet%s (%qd byte%s) of data after window\n"); p(tcps_rcvwinprobe, "\t\t%u window probe%s\n"); p(tcps_rcvwinupd, "\t\t%u window update packet%s\n"); p(tcps_rcvafterclose, "\t\t%u packet%s received after close\n"); p(tcps_rcvbadsum, "\t\t%u discarded for bad checksum%s\n"); p(tcps_rcvbadoff, "\t\t%u discarded for bad header offset field%s\n"); p1(tcps_rcvshort, "\t\t%u discarded because packet too short\n"); p1(tcps_rcvnosec, "\t\t%u discarded for missing IPsec protection\n"); p1(tcps_rcvmemdrop, "\t\t%u discarded due to memory shortage\n"); p(tcps_inhwcsum, "\t\t%u packet%s hardware-checksummed\n"); p(tcps_rcvbadsig, "\t\t%u bad/missing md5 checksum%s\n"); p(tcps_rcvgoodsig, "\t\t%qd good md5 checksum%s\n"); p(tcps_connattempt, "\t%u connection request%s\n"); p(tcps_accepts, "\t%u connection accept%s\n"); p(tcps_connects, "\t%u connection%s established (including accepts)\n"); p2(tcps_closed, tcps_drops, "\t%u connection%s closed (including %u drop%s)\n"); p(tcps_conndrained, "\t%qd connection%s drained\n"); p(tcps_conndrops, "\t%u embryonic connection%s dropped\n"); p2(tcps_rttupdated, tcps_segstimed, "\t%u segment%s updated rtt (of %u attempt%s)\n"); p(tcps_rexmttimeo, "\t%u retransmit timeout%s\n"); p(tcps_timeoutdrop, "\t\t%u connection%s dropped by rexmit timeout\n"); p(tcps_persisttimeo, "\t%u persist timeout%s\n"); p(tcps_keeptimeo, "\t%u keepalive timeout%s\n"); p(tcps_keepprobe, "\t\t%u keepalive probe%s sent\n"); p(tcps_keepdrops, "\t\t%u connection%s dropped by keepalive\n"); p(tcps_predack, "\t%u correct ACK header prediction%s\n"); p(tcps_preddat, "\t%u correct data packet header prediction%s\n"); p3(tcps_pcbhashmiss, "\t%u PCB cache miss%s\n"); p(tcps_ecn_accepts, "\t%u ECN connection%s accepted\n"); p(tcps_ecn_rcvece, "\t\t%u ECE packet%s received\n"); p(tcps_ecn_rcvcwr, "\t\t%u CWR packet%s received\n"); p(tcps_ecn_rcvce, "\t\t%u CE packet%s received\n"); p(tcps_ecn_sndect, "\t\t%u ECT packet%s sent\n"); p(tcps_ecn_sndece, "\t\t%u ECE packet%s sent\n"); p(tcps_ecn_sndcwr, "\t\t%u CWR packet%s sent\n"); p1(tcps_cwr_frecovery, "\t\t\tcwr by fastrecovery: %u\n"); p1(tcps_cwr_timeout, "\t\t\tcwr by timeout: %u\n"); p1(tcps_cwr_ecn, "\t\t\tcwr by ecn: %u\n"); p(tcps_badsyn, "\t%u bad connection attempt%s\n"); p1(tcps_sc_added, "\t%qd SYN cache entries added\n"); p(tcps_sc_collisions, "\t\t%qd hash collision%s\n"); p1(tcps_sc_completed, "\t\t%qd completed\n"); p1(tcps_sc_aborted, "\t\t%qd aborted (no space to build PCB)\n"); p1(tcps_sc_timed_out, "\t\t%qd timed out\n"); p1(tcps_sc_overflowed, "\t\t%qd dropped due to overflow\n"); p1(tcps_sc_bucketoverflow, "\t\t%qd dropped due to bucket overflow\n"); p1(tcps_sc_reset, "\t\t%qd dropped due to RST\n"); p1(tcps_sc_unreach, "\t\t%qd dropped due to ICMP unreachable\n"); p(tcps_sc_retransmitted, "\t%qd SYN,ACK%s retransmitted\n"); p(tcps_sc_dupesyn, "\t%qd duplicate SYN%s received for entries " "already in the cache\n"); p(tcps_sc_dropped, "\t%qd SYN%s dropped (no route or no space)\n"); #undef p #undef p1 #undef p2 #undef p2a #undef p3 } /* * Dump UDP statistics structure. */ void udp_stats(u_long off, char *name) { struct udpstat udpstat; u_long delivered; if (off == 0) return; kread(off, (char *)&udpstat, sizeof (udpstat)); printf("%s:\n", name); #define p(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f, plural(udpstat.f)) #define p1(f, m) if (udpstat.f || sflag <= 1) \ printf(m, udpstat.f) p(udps_ipackets, "\t%lu datagram%s received\n"); p1(udps_hdrops, "\t%lu with incomplete header\n"); p1(udps_badlen, "\t%lu with bad data length field\n"); p1(udps_badsum, "\t%lu with bad checksum\n"); p1(udps_nosum, "\t%lu with no checksum\n"); p(udps_inhwcsum, "\t%lu input packet%s hardware-checksummed\n"); p(udps_outhwcsum, "\t%lu output packet%s hardware-checksummed\n"); p1(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"); p1(udps_nosec, "\t%lu dropped due to missing IPsec protection\n"); p1(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); p(udps_opackets, "\t%lu datagram%s output\n"); p1(udps_pcbhashmiss, "\t%lu missed PCB cache\n"); #undef p #undef p1 } /* * Dump IP statistics structure. */ void ip_stats(u_long off, char *name) { struct ipstat ipstat; if (off == 0) return; kread(off, (char *)&ipstat, sizeof (ipstat)); printf("%s:\n", name); #define p(f, m) if (ipstat.f || sflag <= 1) \ printf(m, ipstat.f, plural(ipstat.f)) #define p1(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"); p1(ips_toosmall, "\t%lu with size smaller than minimum\n"); p1(ips_tooshort, "\t%lu with data size < data length\n"); p1(ips_badhlen, "\t%lu with header length < data size\n"); p1(ips_badlen, "\t%lu with data length < header length\n"); p1(ips_badoptions, "\t%lu with bad options\n"); p1(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 (duplicates 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\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"); p1(ips_rcvmemdrop, "\t%lu fragment floods\n"); p(ips_toolong, "\t%lu packet%s with ip length > max ip packet size\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"); p(ips_inhwcsum, "\t%lu input datagram%s checksum-processed by hardware\n"); p(ips_outhwcsum, "\t%lu output datagram%s checksum-processed by hardware\n"); #undef p #undef p1 } static char *icmpnames[ICMP_MAXTYPE + 1] = { "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", "#19", "#20", "#21", "#22", "#23", "#24", "#25", "#26", "#27", "#28", "#29", "traceroute", "data conversion error", "mobile host redirect", "IPv6 where-are-you", "IPv6 i-am-here", "mobile registration request", "mobile registration reply", "#37", "#38", "SKIP", "Photuris", }; /* * Dump ICMP statistics. */ void icmp_stats(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 packet histogram:\n"); first = 0; } if (icmpnames[i]) printf("\t\t%s:", icmpnames[i]); else printf("\t\t#%d:", i); printf(" %lu\n", 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 packet histogram:\n"); first = 0; } if (icmpnames[i]) printf("\t\t%s:", icmpnames[i]); else printf("\t\t#%d:", i); printf(" %lu\n", icmpstat.icps_inhist[i]); } p(icps_reflect, "\t%lu message response%s generated\n"); #undef p } /* * Dump IGMP statistics structure. */ void igmp_stats(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 } struct rpcnams { struct rpcnams *next; in_port_t port; int proto; char *rpcname; }; static char * getrpcportnam(in_port_t port, int proto) { struct sockaddr_in server_addr; struct hostent *hp; static struct pmaplist *head; int socket = RPC_ANYSOCK; struct timeval minutetimeout; CLIENT *client; struct rpcent *rpc; static int first; static struct rpcnams *rpcn; struct rpcnams *n; char num[20]; if (first == 0) { first = 1; memset((char *)&server_addr, 0, sizeof server_addr); server_addr.sin_family = AF_INET; if ((hp = gethostbyname("localhost")) != NULL) memmove((caddr_t)&server_addr.sin_addr, hp->h_addr, hp->h_length); else (void) inet_aton("0.0.0.0", &server_addr.sin_addr); minutetimeout.tv_sec = 60; minutetimeout.tv_usec = 0; server_addr.sin_port = htons(PMAPPORT); if ((client = clnttcp_create(&server_addr, PMAPPROG, PMAPVERS, &socket, 50, 500)) == NULL) return (NULL); if (clnt_call(client, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist, &head, minutetimeout) != RPC_SUCCESS) { clnt_destroy(client); return (NULL); } for (; head != NULL; head = head->pml_next) { n = (struct rpcnams *)malloc(sizeof(struct rpcnams)); if (n == NULL) continue; n->next = rpcn; rpcn = n; n->port = head->pml_map.pm_port; n->proto = head->pml_map.pm_prot; rpc = getrpcbynumber(head->pml_map.pm_prog); if (rpc) n->rpcname = strdup(rpc->r_name); else { snprintf(num, sizeof num, "%ld", head->pml_map.pm_prog); n->rpcname = strdup(num); } } clnt_destroy(client); } for (n = rpcn; n; n = n->next) if (n->port == port && n->proto == proto) return (n->rpcname); return (NULL); } /* * Pretty print an Internet address (net address + port). * If the nflag was specified, use numbers instead of names. */ void inetprint(struct in_addr *in, in_port_t port, char *proto, int local) { struct servent *sp = 0; char line[80], *cp, *nam; int width; snprintf(line, sizeof line, "%.*s.", (Aflag && !nflag) ? 12 : 16, inetname(in)); cp = strchr(line, '\0'); if (!nflag && port) sp = getservbyport((int)port, proto); if (sp || port == 0) snprintf(cp, line + sizeof line - cp, "%.8s", sp ? sp->s_name : "*"); else if (local && !nflag && (nam = getrpcportnam(ntohs(port), (strcmp(proto, "tcp") == 0 ? IPPROTO_TCP : IPPROTO_UDP)))) snprintf(cp, line + sizeof line - cp, "%d[%.8s]", ntohs(port), nam); else snprintf(cp, line + sizeof line - cp, "%d", ntohs(port)); width = Aflag ? 18 : 22; 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(struct in_addr *inp) { char *cp; static char line[50]; struct hostent *hp; struct netent *np; static char domain[MAXHOSTNAMELEN]; static int first = 1; if (first && !nflag) { first = 0; if (gethostname(domain, sizeof(domain)) == 0 && (cp = strchr(domain, '.'))) (void) strlcpy(domain, cp + 1, sizeof domain); else domain[0] = '\0'; } cp = NULL; 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 == NULL) { 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) snprintf(line, sizeof line, "*"); else if (cp) snprintf(line, sizeof line, "%s", cp); else { inp->s_addr = ntohl(inp->s_addr); #define C(x) ((x) & 0xff) 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)); } return (line); } /* * Dump AH statistics structure. */ void ah_stats(u_long off, char *name) { struct ahstat ahstat; if (off == 0) return; kread(off, (char *)&ahstat, sizeof (ahstat)); printf("%s:\n", name); #define p(f, m) if (ahstat.f || sflag <= 1) \ printf(m, ahstat.f, plural(ahstat.f)) #define p1(f, m) if (ahstat.f || sflag <= 1) \ printf(m, ahstat.f) p1(ahs_input, "\t%u input AH packets\n"); p1(ahs_output, "\t%u output AH packets\n"); p(ahs_nopf, "\t%u packet%s from unsupported protocol families\n"); p(ahs_hdrops, "\t%u packet%s shorter than header shows\n"); p(ahs_pdrops, "\t%u packet%s dropped due to policy\n"); p(ahs_notdb, "\t%u packet%s for which no TDB was found\n"); p(ahs_badkcr, "\t%u input packet%s that failed to be processed\n"); p(ahs_badauth, "\t%u packet%s that failed verification received\n"); p(ahs_noxform, "\t%u packet%s for which no XFORM was set in TDB received\n"); p(ahs_qfull, "\t%u packet%s were dropped due to full output queue\n"); p(ahs_wrap, "\t%u packet%s where counter wrapping was detected\n"); p(ahs_replay, "\t%u possibly replayed packet%s received\n"); p(ahs_badauthl, "\t%u packet%s with bad authenticator length received\n"); p(ahs_invalid, "\t%u packet%s attempted to use an invalid TDB\n"); p(ahs_toobig, "\t%u packet%s got larger than max IP packet size\n"); p(ahs_crypto, "\t%u packet%s that failed crypto processing\n"); p(ahs_ibytes, "\t%qu input byte%s\n"); p(ahs_obytes, "\t%qu output byte%s\n"); #undef p #undef p1 } /* * Dump etherip statistics structure. */ void etherip_stats(u_long off, char *name) { struct etheripstat etheripstat; if (off == 0) return; kread(off, (char *)ðeripstat, sizeof (etheripstat)); printf("%s:\n", name); #define p(f, m) if (etheripstat.f || sflag <= 1) \ printf(m, etheripstat.f, plural(etheripstat.f)) p(etherip_hdrops, "\t%u packet%s shorter than header shows\n"); p(etherip_qfull, "\t%u packet%s were dropped due to full output queue\n"); p(etherip_noifdrops, "\t%u packet%s were dropped because of no interface/bridge information\n"); p(etherip_pdrops, "\t%u packet%s dropped due to policy\n"); p(etherip_adrops, "\t%u packet%s dropped for other reasons\n"); p(etherip_ipackets, "\t%u input ethernet-in-IP packet%s\n"); p(etherip_opackets, "\t%u output ethernet-in-IP packet%s\n"); p(etherip_ibytes, "\t%qu input byte%s\n"); p(etherip_obytes, "\t%qu output byte%s\n"); #undef p } /* * Dump ESP statistics structure. */ void esp_stats(u_long off, char *name) { struct espstat espstat; if (off == 0) return; kread(off, (char *)&espstat, sizeof (espstat)); printf("%s:\n", name); #define p(f, m) if (espstat.f || sflag <= 1) \ printf(m, espstat.f, plural(espstat.f)) p(esps_input, "\t%u input ESP packet%s\n"); p(esps_output, "\t%u output ESP packet%s\n"); p(esps_nopf, "\t%u packet%s from unsupported protocol families\n"); p(esps_hdrops, "\t%u packet%s shorter than header shows\n"); p(esps_pdrops, "\t%u packet%s dropped due to policy\n"); p(esps_notdb, "\t%u packet%s for which no TDB was found\n"); p(esps_badkcr, "\t%u input packet%s that failed to be processed\n"); p(esps_badenc, "\t%u packet%s with bad encryption received\n"); p(esps_badauth, "\t%u packet%s that failed verification received\n"); p(esps_noxform, "\t%u packet%s for which no XFORM was set in TDB received\n"); p(esps_qfull, "\t%u packet%s were dropped due to full output queue\n"); p(esps_wrap, "\t%u packet%s where counter wrapping was detected\n"); p(esps_replay, "\t%u possibly replayed packet%s received\n"); p(esps_badilen, "\t%u packet%s with bad payload size or padding received\n"); p(esps_invalid, "\t%u packet%s attempted to use an invalid TDB\n"); p(esps_toobig, "\t%u packet%s got larger than max IP packet size\n"); p(esps_crypto, "\t%u packet%s that failed crypto processing\n"); p(esps_udpencin, "\t%u input UDP encapsulated ESP packet%s\n"); p(esps_udpencout, "\t%u output UDP encapsulated ESP packet%s\n"); p(esps_udpinval, "\t%u UDP packet%s for non-encapsulating TDB received\n"); p(esps_ibytes, "\t%qu input byte%s\n"); p(esps_obytes, "\t%qu output byte%s\n"); #undef p } /* * Dump IP-in-IP statistics structure. */ void ipip_stats(u_long off, char *name) { struct ipipstat ipipstat; if (off == 0) return; kread(off, (char *)&ipipstat, sizeof (ipipstat)); printf("%s:\n", name); #define p(f, m) if (ipipstat.f || sflag <= 1) \ printf(m, ipipstat.f, plural(ipipstat.f)) p(ipips_ipackets, "\t%u total input packet%s\n"); p(ipips_opackets, "\t%u total output packet%s\n"); p(ipips_hdrops, "\t%u packet%s shorter than header shows\n"); p(ipips_pdrops, "\t%u packet%s dropped due to policy\n"); p(ipips_spoof, "\t%u packet%s with possibly spoofed local addresses\n"); p(ipips_qfull, "\t%u packet%s were dropped due to full output queue\n"); p(ipips_ibytes, "\t%qu input byte%s\n"); p(ipips_obytes, "\t%qu output byte%s\n"); p(ipips_family, "\t%u protocol family mismatche%s\n"); p(ipips_unspec, "\t%u attempt%s to use tunnel with unspecified endpoint(s)\n"); #undef p } /* * Dump CARP statistics structure. */ void carp_stats(u_long off, char *name) { struct carpstats carpstat; if (off == 0) return; kread(off, (char *)&carpstat, sizeof(carpstat)); printf("%s:\n", name); #define p(f, m) if (carpstat.f || sflag <= 1) \ printf(m, carpstat.f, plural(carpstat.f)) #define p2(f, m) if (carpstat.f || sflag <= 1) \ printf(m, carpstat.f) p(carps_ipackets, "\t%llu packet%s received (IPv4)\n"); p(carps_ipackets6, "\t%llu packet%s received (IPv6)\n"); p(carps_badif, "\t\t%llu packet%s discarded for bad interface\n"); p(carps_hdrops, "\t\t%llu packet%s shorter than header\n"); p(carps_badsum, "\t\t%llu discarded for bad checksum%s\n"); p(carps_badver, "\t\t%llu discarded packet%s with a bad version\n"); p2(carps_badlen, "\t\t%llu discarded because packet too short\n"); p2(carps_badauth, "\t\t%llu discarded for bad authentication\n"); p2(carps_badvhid, "\t\t%llu discarded for bad vhid\n"); p2(carps_badaddrs, "\t\t%llu discarded because of a bad address list\n"); p(carps_opackets, "\t%llu packet%s sent (IPv4)\n"); p(carps_opackets6, "\t%llu packet%s sent (IPv6)\n"); #undef p #undef p2 } /* * Dump pfsync statistics structure. */ void pfsync_stats(u_long off, char *name) { struct pfsyncstats pfsyncstat; if (off == 0) return; kread(off, (char *)&pfsyncstat, sizeof(pfsyncstat)); printf("%s:\n", name); #define p(f, m) if (pfsyncstat.f || sflag <= 1) \ printf(m, pfsyncstat.f, plural(pfsyncstat.f)) #define p2(f, m) if (pfsyncstat.f || sflag <= 1) \ printf(m, pfsyncstat.f) p(pfsyncs_ipackets, "\t%llu packet%s received (IPv4)\n"); p(pfsyncs_ipackets6, "\t%llu packet%s received (IPv6)\n"); p(pfsyncs_badif, "\t\t%llu packet%s discarded for bad interface\n"); p(pfsyncs_badttl, "\t\t%llu packet%s discarded for bad ttl\n"); p(pfsyncs_hdrops, "\t\t%llu packet%s shorter than header\n"); p(pfsyncs_badver, "\t\t%llu packet%s discarded for bad version\n"); p(pfsyncs_badauth, "\t\t%llu packet%s discarded for bad HMAC\n"); p(pfsyncs_badact,"\t\t%llu packet%s discarded for bad action\n"); p(pfsyncs_badlen, "\t\t%llu packet%s discarded for short packet\n"); p(pfsyncs_badval, "\t\t%llu state%s discarded for bad values\n"); p(pfsyncs_stale, "\t\t%llu stale state%s\n"); p(pfsyncs_badstate, "\t\t%llu failed state lookup/insert%s\n"); p(pfsyncs_opackets, "\t%llu packet%s sent (IPv4)\n"); p(pfsyncs_opackets6, "\t%llu packet%s sent (IPv6)\n"); p2(pfsyncs_onomem, "\t\t%llu send failed due to mbuf memory error\n"); p2(pfsyncs_oerrors, "\t\t%llu send error\n"); #undef p #undef p2 } /* * Dump IPCOMP statistics structure. */ void ipcomp_stats(u_long off, char *name) { struct ipcompstat ipcompstat; if (off == 0) return; kread(off, (char *)&ipcompstat, sizeof (ipcompstat)); printf("%s:\n", name); #define p(f, m) if (ipcompstat.f || sflag <= 1) \ printf(m, ipcompstat.f, plural(ipcompstat.f)) p(ipcomps_input, "\t%u input IPCOMP packet%s\n"); p(ipcomps_output, "\t%u output IPCOMP packet%s\n"); p(ipcomps_nopf, "\t%u packet%s from unsupported protocol families\n"); p(ipcomps_hdrops, "\t%u packet%s shorter than header shows\n"); p(ipcomps_pdrops, "\t%u packet%s dropped due to policy\n"); p(ipcomps_notdb, "\t%u packet%s for which no TDB was found\n"); p(ipcomps_badkcr, "\t%u input packet%s that failed to be processed\n"); p(ipcomps_noxform, "\t%u packet%s for which no XFORM was set in TDB received\n"); p(ipcomps_qfull, "\t%u packet%s were dropped due to full output queue\n"); p(ipcomps_wrap, "\t%u packet%s where counter wrapping was detected\n"); p(ipcomps_invalid, "\t%u packet%s attempted to use an invalid TDB\n"); p(ipcomps_toobig, "\t%u packet%s got larger than max IP packet size\n"); p(ipcomps_crypto, "\t%u packet%s that failed (de)compression processing\n"); p(ipcomps_minlen, "\t%u packet%s less than minimum compression length\n"); p(ipcomps_ibytes, "\t%qu input byte%s\n"); p(ipcomps_obytes, "\t%qu output byte%s\n"); #undef p }