311 lines
7.1 KiB
C
311 lines
7.1 KiB
C
/*
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* print PPP statistics:
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* pppstats [-v] [-r] [-z] [-c count] [-w wait] [interface]
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*
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* -v Verbose mode for default display
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* -r Show compression ratio in default display
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* -z Show compression statistics instead of default display
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*
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* from the original "slstats" by Van Jacobson
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*
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* Copyright (c) 1989 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:
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* - Initial distribution.
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*/
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#ifndef lint
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static char rcsid[] = "$Id: pppstats.c,v 1.11 1995/08/17 11:44:53 paulus Exp $";
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#endif
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#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/ppp_defs.h>
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#include <net/if.h>
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#include <net/if_ppp.h>
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int vflag, rflag, zflag; /* select type of display */
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int interval, count;
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int infinite;
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int unit;
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int s; /* socket file descriptor */
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int signalled; /* set if alarm goes off "early" */
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char *progname;
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char interface[IFNAMSIZ];
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void
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usage()
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{
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fprintf(stderr, "Usage: %s [-v|-r|-z] [-c count] [-w wait] [interface]\n",
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progname);
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exit(1);
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}
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/*
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* Called if an interval expires before intpr has completed a loop.
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* Sets a flag to not wait for the alarm.
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*/
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void
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catchalarm(arg)
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int arg;
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{
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signalled = 1;
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}
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void
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get_ppp_stats(curp)
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struct ppp_stats *curp;
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{
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struct ifpppstatsreq req;
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strncpy(req.ifr_name, interface, sizeof(req.ifr_name));
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if (ioctl(s, SIOCGPPPSTATS, &req) == 0) {
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*curp = req.stats;
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return;
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}
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fprintf(stderr, "%s: ", progname);
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if (errno == ENOTTY)
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errx(1, "kernel support missing");
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else
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err(1, "couldn't get PPP statistics");
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}
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get_ppp_cstats(csp)
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struct ppp_comp_stats *csp;
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{
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struct ifpppcstatsreq creq;
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strncpy(creq.ifr_name, interface, sizeof(creq.ifr_name));
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if (ioctl(s, SIOCGPPPCSTATS, &creq) == 0) {
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*csp = creq.stats;
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return;
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}
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if (errno == ENOTTY) {
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if (zflag)
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errx(1, "no kernel compression support\n");
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warnx("no kernel compression support\n");
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rflag = 0;
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} else
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err(1, "couldn't get PPP compression stats");
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}
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#define V(offset) (cur.offset - old.offset)
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#define W(offset) (ccs.offset - ocs.offset)
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#define CRATE(x) ((x).unc_bytes == 0? 0.0: \
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1.0 - ((double)((x).comp_bytes + (x).inc_bytes) \
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/ (x).unc_bytes))
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/*
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* Print a running summary of interface statistics.
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* Repeat display every interval seconds, showing statistics
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* collected over that interval. Assumes that interval is non-zero.
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* First line printed is cumulative.
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*/
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void
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intpr()
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{
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register int line = 0;
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sigset_t oldmask, mask;
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struct ppp_stats cur, old;
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struct ppp_comp_stats ccs, ocs;
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memset(&old, 0, sizeof(old));
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memset(&ocs, 0, sizeof(ocs));
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while (1) {
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get_ppp_stats(&cur);
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if (zflag || rflag)
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get_ppp_cstats(&ccs);
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(void)signal(SIGALRM, catchalarm);
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signalled = 0;
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(void)alarm(interval);
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if ((line % 20) == 0) {
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if (zflag) {
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printf("IN: COMPRESSED INCOMPRESSIBLE COMP | ");
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printf("OUT: COMPRESSED INCOMPRESSIBLE COMP\n");
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printf(" BYTE PACK BYTE PACK RATIO | ");
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printf(" BYTE PACK BYTE PACK RATIO");
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} else {
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printf("%8.8s %6.6s %6.6s %6.6s %6.6s",
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"IN", "PACK", "VJCOMP", "VJUNC", "VJERR");
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if (vflag)
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printf(" %6.6s %6.6s", "VJTOSS", "NON-VJ");
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if (rflag)
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printf(" %6.6s %6.6s", "RATIO", "UBYTE");
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printf(" | %8.8s %6.6s %6.6s %6.6s %6.6s",
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"OUT", "PACK", "VJCOMP", "VJUNC", "NON-VJ");
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if (vflag)
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printf(" %6.6s %6.6s", "VJSRCH", "VJMISS");
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if(rflag)
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printf(" %6.6s %6.6s", "RATIO", "UBYTE");
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}
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putchar('\n');
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}
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if (zflag) {
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printf("%8u %6u %8u %6u %6.2f",
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W(d.comp_bytes),
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W(d.comp_packets),
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W(d.inc_bytes),
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W(d.inc_packets),
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ccs.d.ratio == 0? 0.0:
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1 - 1.0 / ccs.d.ratio * 256.0);
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printf(" | %8u %6u %8u %6u %6.2f",
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W(c.comp_bytes),
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W(c.comp_packets),
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W(c.inc_bytes),
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W(c.inc_packets),
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ccs.c.ratio == 0? 0.0:
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1 - 1.0 / ccs.c.ratio * 256.0);
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} else {
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printf("%8u %6u %6u %6u %6u",
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V(p.ppp_ibytes),
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V(p.ppp_ipackets),
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V(vj.vjs_compressedin),
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V(vj.vjs_uncompressedin),
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V(vj.vjs_errorin));
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if (vflag)
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printf(" %6u %6u",
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V(vj.vjs_tossed),
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V(p.ppp_ipackets) -
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V(vj.vjs_compressedin) -
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V(vj.vjs_uncompressedin) -
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V(vj.vjs_errorin));
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if (rflag)
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printf(" %6.2f %6u",
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CRATE(ccs.d),
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W(d.unc_bytes));
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printf(" | %8u %6u %6u %6u %6u",
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V(p.ppp_obytes),
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V(p.ppp_opackets),
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V(vj.vjs_compressed),
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V(vj.vjs_packets) - V(vj.vjs_compressed),
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V(p.ppp_opackets) - V(vj.vjs_packets));
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if (vflag)
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printf(" %6u %6u",
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V(vj.vjs_searches),
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V(vj.vjs_misses));
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if (rflag)
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printf(" %6.2f %6u",
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CRATE(ccs.c),
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W(c.unc_bytes));
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}
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putchar('\n');
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fflush(stdout);
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line++;
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count--;
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if (!infinite && !count)
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break;
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oldmask = sigblock(sigmask(SIGALRM));
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if (signalled == 0)
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sigpause(0);
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sigsetmask(oldmask);
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signalled = 0;
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(void)alarm(interval);
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old = cur;
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ocs = ccs;
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}
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}
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int c;
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struct ifreq ifr;
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strcpy(interface, "ppp0");
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if ((progname = strrchr(argv[0], '/')) == NULL)
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progname = argv[0];
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else
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++progname;
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while ((c = getopt(argc, argv, "vrzc:w:")) != -1) {
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switch (c) {
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case 'v':
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++vflag;
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break;
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case 'r':
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++rflag;
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break;
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case 'z':
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++zflag;
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break;
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case 'c':
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count = atoi(optarg);
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if (count <= 0)
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usage();
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break;
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case 'w':
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interval = atoi(optarg);
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if (interval <= 0)
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usage();
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (!interval && count)
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interval = 5;
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if (interval && !count)
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infinite = 1;
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if (!interval && !count)
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count = 1;
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if (argc > 1)
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usage();
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if (argc > 0)
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strncpy(interface, argv[0], sizeof(interface));
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if (sscanf(interface, "ppp%d", &unit) != 1)
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errx(1, "invalid interface '%s' specified\n", interface);
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0)
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err(1, "couldn't create IP socket");
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strcpy(ifr.ifr_name, interface);
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if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0)
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errx(1, "nonexistent interface '%s' specified\n", interface);
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intpr();
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exit(0);
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}
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