diff options
Diffstat (limited to 'usr.bin/netstat/ns.c')
| -rw-r--r-- | usr.bin/netstat/ns.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/usr.bin/netstat/ns.c b/usr.bin/netstat/ns.c new file mode 100644 index 0000000..a7bee2f --- /dev/null +++ b/usr.bin/netstat/ns.c @@ -0,0 +1,351 @@ +/* + * 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)ns.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/mbuf.h> +#include <sys/protosw.h> + +#include <net/route.h> +#include <net/if.h> + +#include <netinet/tcp_fsm.h> + +#include <netns/ns.h> +#include <netns/ns_pcb.h> +#include <netns/idp.h> +#include <netns/idp_var.h> +#include <netns/ns_error.h> +#include <netns/sp.h> +#include <netns/spidp.h> +#include <netns/spp_timer.h> +#include <netns/spp_var.h> +#define SANAMES +#include <netns/spp_debug.h> + +#include <nlist.h> +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include "netstat.h" + +struct nspcb nspcb; +struct sppcb sppcb; +struct socket sockb; + +static char *ns_prpr __P((struct ns_addr *)); +static void ns_erputil __P((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(off, name) + u_long off; + char *name; +{ + struct nspcb cb; + register struct nspcb *prev, *next; + int isspp; + + if (off == 0) + return; + isspp = strcmp(name, "spp") == 0; + kread(off, (char *)&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, (char *)&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, + (char *)&sockb, sizeof (sockb)); + ppcb = (u_long) nspcb.nsp_pcb; + if (ppcb) { + if (isspp) { + kread(ppcb, (char *)&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("%8x ", ppcb); + printf("%-5.5s %6d %6d ", 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%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0) + +/* + * Dump SPP statistics structure. + */ +void +spp_stats(off, name) + u_long off; + char *name; +{ + struct spp_istat spp_istat; +#define sppstat spp_istat.newstats + + if (off == 0) + return; + kread(off, (char *)&spp_istat, sizeof (spp_istat)); + printf("%s:\n", name); + ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets "); + ANY(spp_istat.gonawy, "connection", " terminated due to our end dying"); + ANY(spp_istat.nonucn, "connection", + " dropped due to inability to connect"); + ANY(spp_istat.noconn, "connection", + " dropped due to inability to connect"); + ANY(spp_istat.notme, "connection", + " incompleted due to mismatched id's"); + ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's"); + ANY(spp_istat.bdreas, "packet", " dropped out of sequence"); + ANY(spp_istat.lstdup, "packet", " duplicating the highest packet"); + ANY(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, "dup. byte", " in part-dup. 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(off, name) + u_long off; + char *name; +{ + struct idpstat idpstat; + + if (off == 0) + return; + kread(off, (char *)&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(off, name) + u_long off; + char *name; +{ + struct ns_errstat ns_errstat; + register int j; + register int histoprint = 1; + int z; + + if (off == 0) + return; + kread(off, (char *)&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(z, c) + int z, c; +{ + int j; + char codebuf[30]; + char *name, *where; + + 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"; + sprintf(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(x) + struct ns_addr *x; +{ + struct sockaddr_ns *sns = &ssns; + + sns->sns_addr = *x; + return(ns_print((struct sockaddr *)sns)); +} |
