/* $OpenBSD: ns.c,v 1.12 2005/03/25 17:01:04 jaredy Exp $ */ /* $NetBSD: ns.c,v 1.8 1995/10/03 21:42:46 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: @(#)ns.c 8.1 (Berkeley) 6/6/93"; #else static char *rcsid = "$OpenBSD: ns.c,v 1.12 2005/03/25 17:01:04 jaredy Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define SANAMES #include #include #include #include #include #include #include "netstat.h" struct nspcb nspcb; struct sppcb sppcb; struct socket sockb; static char *ns_prpr(struct ns_addr *); static void ns_erputil(int, int); static int first = 1; /* * Print a summary of connections related to a Network Systems * protocol. For SPP, also give state of connection. * Listening processes (aflag) are suppressed unless the * -a (all) flag is specified. */ void nsprotopr(u_long off, char *name) { struct nspcb cb; struct nspcb *prev, *next; int isspp; if (off == 0) return; isspp = strcmp(name, "spp") == 0; kread(off, &cb, sizeof (struct nspcb)); nspcb = cb; prev = (struct nspcb *)off; if (nspcb.nsp_next == (struct nspcb *)off) return; for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) { u_long ppcb; next = nspcb.nsp_next; kread((u_long)next, &nspcb, sizeof (nspcb)); if (nspcb.nsp_prev != prev) { printf("???\n"); break; } if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) { continue; } kread((u_long)nspcb.nsp_socket, &sockb, sizeof (sockb)); ppcb = (u_long) nspcb.nsp_pcb; if (ppcb) { if (isspp) { kread(ppcb, &sppcb, sizeof (sppcb)); } else continue; } else if (isspp) continue; if (first) { printf("Active NS connections"); if (aflag) printf(" (including servers)"); putchar('\n'); if (Aflag) printf("%-8.8s ", "PCB"); printf(Aflag ? "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" : "%-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) printf("%8lx ", ppcb); printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc, sockb.so_snd.sb_cc); printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr)); printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr)); if (isspp) { extern char *tcpstates[]; if (sppcb.s_state >= TCP_NSTATES) printf(" %d", sppcb.s_state); else printf(" %s", tcpstates[sppcb.s_state]); } putchar('\n'); prev = next; } } #define ANY(x,y,z) \ ((x) ? printf("\t%ld %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0) /* * Dump SPP statistics structure. */ void spp_stats(u_long off, char *name) { struct spp_istat spp_istat; #define sppstat spp_istat.newstats if (off == 0) return; kread(off, &spp_istat, sizeof (spp_istat)); printf("%s:\n", name); ANY((long)spp_istat.nonucn, "connection", " dropped due to no new sockets "); ANY((long)spp_istat.gonawy, "connection", " terminated due to our end dying"); ANY((long)spp_istat.nonucn, "connection", " dropped due to inability to connect"); ANY((long)spp_istat.noconn, "connection", " dropped due to inability to connect"); ANY((long)spp_istat.notme, "connection", " incompleted due to mismatched id's"); ANY((long)spp_istat.wrncon, "connection", " dropped due to mismatched id's"); ANY((long)spp_istat.bdreas, "packet", " dropped out of sequence"); ANY((long)spp_istat.lstdup, "packet", " duplicating the highest packet"); ANY((long)spp_istat.notyet, "packet", " refused as exceeding allocation"); ANY(sppstat.spps_connattempt, "connection", " initiated"); ANY(sppstat.spps_accepts, "connection", " accepted"); ANY(sppstat.spps_connects, "connection", " established"); ANY(sppstat.spps_drops, "connection", " dropped"); ANY(sppstat.spps_conndrops, "embryonic connection", " dropped"); ANY(sppstat.spps_closed, "connection", " closed (includes drops)"); ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt"); ANY(sppstat.spps_rttupdated, "time", " we got rtt"); ANY(sppstat.spps_delack, "delayed ack", " sent"); ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout"); ANY(sppstat.spps_rexmttimeo, "retransmit timeout", ""); ANY(sppstat.spps_persisttimeo, "persist timeout", ""); ANY(sppstat.spps_keeptimeo, "keepalive timeout", ""); ANY(sppstat.spps_keepprobe, "keepalive probe", " sent"); ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive"); ANY(sppstat.spps_sndtotal, "total packet", " sent"); ANY(sppstat.spps_sndpack, "data packet", " sent"); ANY(sppstat.spps_sndbyte, "data byte", " sent"); ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted"); ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted"); ANY(sppstat.spps_sndacks, "ack-only packet", " sent"); ANY(sppstat.spps_sndprobe, "window probe", " sent"); ANY(sppstat.spps_sndurg, "packet", " sent with URG only"); ANY(sppstat.spps_sndwinup, "window update-only packet", " sent"); ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent"); ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet"); ANY(sppstat.spps_rcvtotal, "total packet", " received"); ANY(sppstat.spps_rcvpack, "packet", " received in sequence"); ANY(sppstat.spps_rcvbyte, "byte", " received in sequence"); ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs"); ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset"); ANY(sppstat.spps_rcvshort, "packet", " received too short"); ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received"); ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received"); ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data"); ANY(sppstat.spps_rcvpartdupbyte, "duplicate byte", " in part-duplicate packet"); ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received"); ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received"); ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window"); ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window"); ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'"); ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", ""); ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", ""); ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data"); ANY(sppstat.spps_rcvackpack, "rcvd ack packet", ""); ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks"); ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", ""); } #undef ANY #define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0) /* * Dump IDP statistics structure. */ void idp_stats(u_long off, char *name) { struct idpstat idpstat; if (off == 0) return; kread(off, &idpstat, sizeof (idpstat)); printf("%s:\n", name); ANY(idpstat.idps_toosmall, "packet", " smaller than a header"); ANY(idpstat.idps_tooshort, "packet", " smaller than advertised"); ANY(idpstat.idps_badsum, "packet", " with bad checksums"); } static struct { u_short code; char *name; char *where; } ns_errnames[] = { {0, "Unspecified Error", " at Destination"}, {1, "Bad Checksum", " at Destination"}, {2, "No Listener", " at Socket"}, {3, "Packet", " Refused due to lack of space at Destination"}, {01000, "Unspecified Error", " while gatewayed"}, {01001, "Bad Checksum", " while gatewayed"}, {01002, "Packet", " forwarded too many times"}, {01003, "Packet", " too large to be forwarded"}, {-1, 0, 0}, }; /* * Dump NS Error statistics structure. */ /*ARGSUSED*/ void nserr_stats(u_long off, char *name) { struct ns_errstat ns_errstat; int j; int histoprint = 1; int z; if (off == 0) return; kread(off, &ns_errstat, sizeof (ns_errstat)); printf("NS error statistics:\n"); ANY(ns_errstat.ns_es_error, "call", " to ns_error"); ANY(ns_errstat.ns_es_oldshort, "error", " ignored due to insufficient addressing"); ANY(ns_errstat.ns_es_oldns_err, "error request", " in response to error packets"); ANY(ns_errstat.ns_es_tooshort, "error packet", " received incomplete"); ANY(ns_errstat.ns_es_badcode, "error packet", " received of unknown type"); for (j = 0; j < NS_ERR_MAX; j ++) { z = ns_errstat.ns_es_outhist[j]; if (z && histoprint) { printf("Output Error Histogram:\n"); histoprint = 0; } ns_erputil(z, ns_errstat.ns_es_codes[j]); } histoprint = 1; for (j = 0; j < NS_ERR_MAX; j ++) { z = ns_errstat.ns_es_inhist[j]; if (z && histoprint) { printf("Input Error Histogram:\n"); histoprint = 0; } ns_erputil(z, ns_errstat.ns_es_codes[j]); } } static void ns_erputil(int z, int c) { char *name, *where; char codebuf[30]; int j; for (j = 0;; j ++) { if ((name = ns_errnames[j].name) == 0) break; if (ns_errnames[j].code == c) break; } if (name == 0) { if (c > 01000) where = "in transit"; else where = "at destination"; snprintf(codebuf, sizeof codebuf, "Unknown XNS error code 0%o", c); name = codebuf; } else where = ns_errnames[j].where; ANY(z, name, where); } static struct sockaddr_ns ssns = {AF_NS}; static char *ns_prpr(struct ns_addr *x) { struct sockaddr_ns *sns = &ssns; sns->sns_addr = *x; return(ns_print((struct sockaddr *)sns)); }