520 lines
12 KiB
C
520 lines
12 KiB
C
/*
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* print PPP statistics:
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* pppstats [-a|-d] [-v|-r|-z] [-c count] [-w wait] [interface]
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*
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* -a Show absolute values rather than deltas
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* -d Show data rate (kB/s) rather than bytes
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* -v Show more stats for VJ TCP header compression
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* -r Show compression ratio
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* -z Show compression statistics instead of default display
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*
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* History:
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* perkins@cps.msu.edu: Added compression statistics and alternate
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* display. 11/94
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* Brad Parker (brad@cayman.com) 6/92
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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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#ifndef lint
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static char rcsid[] = "$Id: pppstats.c,v 1.11 1997/09/10 08:43:17 peter 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 <unistd.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/time.h>
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#include <net/ppp_defs.h>
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#ifndef STREAMS
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#include <sys/socket.h> /* *BSD, Linux, NeXT, Ultrix etc. */
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#include <net/if.h>
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#include <net/if_ppp.h>
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#else /* STREAMS */
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#include <sys/stropts.h> /* SVR4, Solaris 2, SunOS 4, OSF/1, etc. */
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#include <net/pppio.h>
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#endif /* STREAMS */
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int vflag, rflag, zflag; /* select type of display */
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int aflag; /* print absolute values, not deltas */
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int dflag; /* print data rates, not bytes */
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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 or /dev/ppp 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;
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#if defined(SUNOS4) || defined(ULTRIX) || defined(NeXT)
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extern int optind;
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extern char *optarg;
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#endif
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static void usage __P((void));
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static void catchalarm __P((int));
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static void get_ppp_stats __P((struct ppp_stats *));
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static void get_ppp_cstats __P((struct ppp_comp_stats *));
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static void intpr __P((void));
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int main __P((int, char *argv[]));
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static void
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usage()
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{
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fprintf(stderr, "Usage: %s [-a|-d] [-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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static 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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#ifndef STREAMS
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static 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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memset (&req, 0, sizeof (req));
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#ifdef _linux_
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req.stats_ptr = (caddr_t) &req.stats;
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#undef ifr_name
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#define ifr_name ifr__name
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#endif
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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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fprintf(stderr, "%s: ", progname);
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if (errno == ENOTTY)
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fprintf(stderr, "kernel support missing\n");
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else
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perror("couldn't get PPP statistics");
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exit(1);
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}
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*curp = req.stats;
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}
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static void
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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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memset (&creq, 0, sizeof (creq));
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#ifdef _linux_
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creq.stats_ptr = (caddr_t) &creq.stats;
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#undef ifr_name
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#define ifr_name ifr__name
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#endif
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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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fprintf(stderr, "%s: ", progname);
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if (errno == ENOTTY) {
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fprintf(stderr, "no kernel compression support\n");
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if (zflag)
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exit(1);
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rflag = 0;
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} else {
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perror("couldn't get PPP compression stats");
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exit(1);
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}
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}
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#ifdef _linux_
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if (creq.stats.c.bytes_out == 0)
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creq.stats.c.ratio = 0.0;
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else
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creq.stats.c.ratio = (double) creq.stats.c.in_count /
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(double) creq.stats.c.bytes_out;
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if (creq.stats.d.bytes_out == 0)
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creq.stats.d.ratio = 0.0;
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else
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creq.stats.d.ratio = (double) creq.stats.d.in_count /
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(double) creq.stats.d.bytes_out;
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#endif
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*csp = creq.stats;
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}
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#else /* STREAMS */
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int
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strioctl(fd, cmd, ptr, ilen, olen)
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int fd, cmd, ilen, olen;
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char *ptr;
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{
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struct strioctl str;
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str.ic_cmd = cmd;
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str.ic_timout = 0;
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str.ic_len = ilen;
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str.ic_dp = ptr;
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if (ioctl(fd, I_STR, &str) == -1)
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return -1;
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if (str.ic_len != olen)
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fprintf(stderr, "strioctl: expected %d bytes, got %d for cmd %x\n",
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olen, str.ic_len, cmd);
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return 0;
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}
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static 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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if (strioctl(s, PPPIO_GETSTAT, curp, 0, sizeof(*curp)) < 0) {
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fprintf(stderr, "%s: ", progname);
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if (errno == EINVAL)
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fprintf(stderr, "kernel support missing\n");
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else
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perror("couldn't get PPP statistics");
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exit(1);
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}
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}
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static void
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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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if (strioctl(s, PPPIO_GETCSTAT, csp, 0, sizeof(*csp)) < 0) {
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fprintf(stderr, "%s: ", progname);
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if (errno == ENOTTY) {
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fprintf(stderr, "no kernel compression support\n");
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if (zflag)
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exit(1);
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rflag = 0;
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} else {
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perror("couldn't get PPP compression statistics");
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exit(1);
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}
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}
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}
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#endif /* STREAMS */
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#define MAX0(a) ((int)(a) > 0? (a): 0)
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#define V(offset) MAX0(cur.offset - old.offset)
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#define W(offset) MAX0(ccs.offset - ocs.offset)
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#define RATIO(c, i, u) ((c) == 0? 1.0: (u) / ((double)(c) + (i)))
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#define CRATE(x) RATIO(W(x.comp_bytes), W(x.inc_bytes), W(x.unc_bytes))
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#define KBPS(n) ((n) / (interval * 1000.0))
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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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static 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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char *bunit;
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int ratef = 0;
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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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bunit = dflag? "KB/S": "BYTE";
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printf(" %s PACK %s PACK RATIO | ", bunit, bunit);
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printf(" %s PACK %s PACK RATIO", bunit, bunit);
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} else {
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printf("%8.8s %6.6s %6.6s",
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"IN", "PACK", "VJCOMP");
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if (!rflag)
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printf(" %6.6s %6.6s", "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",
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"OUT", "PACK", "VJCOMP");
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if (!rflag)
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printf(" %6.6s %6.6s", "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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if (ratef) {
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printf("%8.3f %6u %8.3f %6u %6.2f",
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KBPS(W(d.comp_bytes)),
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W(d.comp_packets),
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KBPS(W(d.inc_bytes)),
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W(d.inc_packets),
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ccs.d.ratio / 256.0);
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printf(" | %8.3f %6u %8.3f %6u %6.2f",
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KBPS(W(c.comp_bytes)),
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W(c.comp_packets),
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KBPS(W(c.inc_bytes)),
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W(c.inc_packets),
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ccs.c.ratio / 256.0);
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} else {
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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 / 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 / 256.0);
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}
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} else {
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if (ratef)
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printf("%8.3f", KBPS(V(p.ppp_ibytes)));
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else
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printf("%8u", V(p.ppp_ibytes));
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printf(" %6u %6u",
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V(p.ppp_ipackets),
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V(vj.vjs_compressedin));
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if (!rflag)
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printf(" %6u %6u",
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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) - V(vj.vjs_compressedin)
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- V(vj.vjs_uncompressedin) - V(vj.vjs_errorin));
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if (rflag) {
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printf(" %6.2f ", CRATE(d));
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if (ratef)
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printf("%6.2f", KBPS(W(d.unc_bytes)));
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else
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printf("%6u", W(d.unc_bytes));
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}
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if (ratef)
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printf(" | %8.3f", KBPS(V(p.ppp_obytes)));
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else
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printf(" | %8u", V(p.ppp_obytes));
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printf(" %6u %6u",
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V(p.ppp_opackets),
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V(vj.vjs_compressed));
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if (!rflag)
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printf(" %6u %6u",
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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 ", CRATE(c));
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if (ratef)
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printf("%6.2f", KBPS(W(c.unc_bytes)));
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else
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printf("%6u", W(c.unc_bytes));
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}
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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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sigemptyset(&mask);
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sigaddset(&mask, SIGALRM);
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sigprocmask(SIG_BLOCK, &mask, &oldmask);
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if (!signalled) {
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sigemptyset(&mask);
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sigsuspend(&mask);
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}
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sigprocmask(SIG_SETMASK, &oldmask, NULL);
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signalled = 0;
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(void)alarm(interval);
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if (!aflag) {
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old = cur;
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ocs = ccs;
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ratef = dflag;
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}
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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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#ifdef STREAMS
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char *dev;
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#endif
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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, "advrzc:w:")) != -1) {
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switch (c) {
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case 'a':
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++aflag;
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break;
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case 'd':
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++dflag;
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break;
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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 (aflag)
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dflag = 0;
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if (argc > 1)
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usage();
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if (argc > 0)
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interface = argv[0];
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if (sscanf(interface, "ppp%d", &unit) != 1) {
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fprintf(stderr, "%s: invalid interface '%s' specified\n",
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progname, interface);
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}
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#ifndef STREAMS
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{
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struct ifreq ifr;
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0) {
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fprintf(stderr, "%s: ", progname);
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perror("couldn't create IP socket");
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exit(1);
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}
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#ifdef _linux_
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#undef ifr_name
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#define ifr_name ifr_ifrn.ifrn_name
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#endif
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strncpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
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if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
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fprintf(stderr, "%s: nonexistent interface '%s' specified\n",
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progname, interface);
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exit(1);
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}
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}
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#else /* STREAMS */
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#ifdef __osf__
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dev = "/dev/streams/ppp";
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#else
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dev = "/dev/ppp";
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#endif
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if ((s = open(dev, O_RDONLY)) < 0) {
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fprintf(stderr, "%s: couldn't open ", progname);
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perror(dev);
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exit(1);
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}
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if (strioctl(s, PPPIO_ATTACH, &unit, sizeof(int), 0) < 0) {
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fprintf(stderr, "%s: ppp%d is not available\n", progname, unit);
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exit(1);
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}
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#endif /* STREAMS */
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intpr();
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exit(0);
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}
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