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NetBSD/usr.bin/netstat/ns.c

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/* $NetBSD: ns.c,v 1.12 2000/10/11 14:46:14 is 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 <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "from: @(#)ns.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: ns.c,v 1.12 2000/10/11 14:46:14 is Exp $");
#endif
#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;
struct nspcb *prev, *next;
int isspp;
int width = 22;
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");
width = 18;
}
printf("%-5.5s %-6.6s %-6.6s %-*.*s %-*.*s %s\n",
"Proto", "Recv-Q", "Send-Q",
width, width, "Local Address",
width, width, "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(" %-*.*s", width, width, ns_prpr(&nspcb.nsp_laddr));
printf(" %-*.*s", width, width, 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)
#define ANYL(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(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");
ANYL(sppstat.spps_connattempt, "connection", " initiated");
ANYL(sppstat.spps_accepts, "connection", " accepted");
ANYL(sppstat.spps_connects, "connection", " established");
ANYL(sppstat.spps_drops, "connection", " dropped");
ANYL(sppstat.spps_conndrops, "embryonic connection", " dropped");
ANYL(sppstat.spps_closed, "connection", " closed (includes drops)");
ANYL(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
ANYL(sppstat.spps_rttupdated, "time", " we got rtt");
ANYL(sppstat.spps_delack, "delayed ack", " sent");
ANYL(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
ANYL(sppstat.spps_rexmttimeo, "retransmit timeout", "");
ANYL(sppstat.spps_persisttimeo, "persist timeout", "");
ANYL(sppstat.spps_keeptimeo, "keepalive timeout", "");
ANYL(sppstat.spps_keepprobe, "keepalive probe", " sent");
ANYL(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
ANYL(sppstat.spps_sndtotal, "total packet", " sent");
ANYL(sppstat.spps_sndpack, "data packet", " sent");
ANYL(sppstat.spps_sndbyte, "data byte", " sent");
ANYL(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
ANYL(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
ANYL(sppstat.spps_sndacks, "ack-only packet", " sent");
ANYL(sppstat.spps_sndprobe, "window probe", " sent");
ANYL(sppstat.spps_sndurg, "packet", " sent with URG only");
ANYL(sppstat.spps_sndwinup, "window update-only packet", " sent");
ANYL(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
ANYL(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
ANYL(sppstat.spps_rcvtotal, "total packet", " received");
ANYL(sppstat.spps_rcvpack, "packet", " received in sequence");
ANYL(sppstat.spps_rcvbyte, "byte", " received in sequence");
ANYL(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
ANYL(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
ANYL(sppstat.spps_rcvshort, "packet", " received too short");
ANYL(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
ANYL(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
ANYL(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
ANYL(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
ANYL(sppstat.spps_rcvoopack, "out-of-order packet", " received");
ANYL(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
ANYL(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
ANYL(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
ANYL(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
ANYL(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
ANYL(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
ANYL(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
ANYL(sppstat.spps_rcvackpack, "rcvd ack packet", "");
ANYL(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
ANYL(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
}
#undef ANY
#undef ANYL
#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;
int j;
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";
(void)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(x)
struct ns_addr *x;
{
struct sockaddr_ns *sns = &ssns;
sns->sns_addr = *x;
return (ns_print((struct sockaddr *)sns));
}
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