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ppp/pppstats/pppstats.c

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/*
* print PPP statistics:
* pppstats [-a|-d] [-v|-r|-z] [-c count] [-w wait] [interface]
*
* -a Show absolute values rather than deltas
* -d Show data rate (kB/s) rather than bytes
* -v Show more stats for VJ TCP header compression
* -r Show compression ratio
* -z Show compression statistics instead of default display
*
* History:
* perkins@cps.msu.edu: Added compression statistics and alternate
* display. 11/94
* Brad Parker (brad@cayman.com) 6/92
*
* from the original "slstats" by Van Jacobson
*
* Copyright (c) 1989 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef __STDC__
#define const
#endif
#ifndef lint
static const char rcsid[] = "$Id: pppstats.c,v 1.29 2002/10/27 12:56:26 fcusack Exp $";
#endif
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#ifndef STREAMS
#if defined(__linux__) && defined(__powerpc__) \
&& (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
/* kludge alert! */
#undef __GLIBC__
#endif
#include <sys/socket.h> /* *BSD, Linux, NeXT, Ultrix etc. */
#ifndef __linux__
#include <net/if.h>
#include <net/ppp_defs.h>
#include <net/if_ppp.h>
#else
/* Linux */
#if __GLIBC__ >= 2
#include <asm/types.h> /* glibc 2 conflicts with linux/types.h */
#include <net/if.h>
#else
#include <linux/types.h>
#include <linux/if.h>
#endif
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#endif /* __linux__ */
#else /* STREAMS */
#include <sys/stropts.h> /* SVR4, Solaris 2, SunOS 4, OSF/1, etc. */
#include <net/ppp_defs.h>
#include <net/pppio.h>
#endif /* STREAMS */
int vflag, rflag, zflag; /* select type of display */
int aflag; /* print absolute values, not deltas */
int dflag; /* print data rates, not bytes */
int interval, count;
int infinite;
int s; /* socket or /dev/ppp file descriptor */
int signalled; /* set if alarm goes off "early" */
char *progname;
char *interface;
#if defined(SUNOS4) || defined(ULTRIX) || defined(NeXT)
extern int optind;
extern char *optarg;
#endif
/*
* If PPP_DRV_NAME is not defined, use the legacy "ppp" as the
* device name.
*/
#if !defined(PPP_DRV_NAME)
#define PPP_DRV_NAME "ppp"
#endif /* !defined(PPP_DRV_NAME) */
static void usage __P((void));
static void catchalarm __P((int));
static void get_ppp_stats __P((struct ppp_stats *));
static void get_ppp_cstats __P((struct ppp_comp_stats *));
static void intpr __P((void));
int main __P((int, char *argv[]));
static void
usage()
{
fprintf(stderr, "Usage: %s [-a|-d] [-v|-r|-z] [-c count] [-w wait] [interface]\n",
progname);
exit(1);
}
/*
* Called if an interval expires before intpr has completed a loop.
* Sets a flag to not wait for the alarm.
*/
static void
catchalarm(arg)
int arg;
{
signalled = 1;
}
#ifndef STREAMS
static void
get_ppp_stats(curp)
struct ppp_stats *curp;
{
struct ifpppstatsreq req;
memset (&req, 0, sizeof (req));
#ifdef __linux__
req.stats_ptr = (caddr_t) &req.stats;
#undef ifr_name
#define ifr_name ifr__name
#endif
strncpy(req.ifr_name, interface, sizeof(req.ifr_name));
if (ioctl(s, SIOCGPPPSTATS, &req) < 0) {
fprintf(stderr, "%s: ", progname);
if (errno == ENOTTY)
fprintf(stderr, "kernel support missing\n");
else
perror("couldn't get PPP statistics");
exit(1);
}
*curp = req.stats;
}
static void
get_ppp_cstats(csp)
struct ppp_comp_stats *csp;
{
struct ifpppcstatsreq creq;
memset (&creq, 0, sizeof (creq));
#ifdef __linux__
creq.stats_ptr = (caddr_t) &creq.stats;
#undef ifr_name
#define ifr_name ifr__name
#endif
strncpy(creq.ifr_name, interface, sizeof(creq.ifr_name));
if (ioctl(s, SIOCGPPPCSTATS, &creq) < 0) {
fprintf(stderr, "%s: ", progname);
if (errno == ENOTTY) {
fprintf(stderr, "no kernel compression support\n");
if (zflag)
exit(1);
rflag = 0;
} else {
perror("couldn't get PPP compression stats");
exit(1);
}
}
#ifdef __linux__
if (creq.stats.c.bytes_out == 0) {
creq.stats.c.bytes_out = creq.stats.c.comp_bytes + creq.stats.c.inc_bytes;
creq.stats.c.in_count = creq.stats.c.unc_bytes;
}
if (creq.stats.c.bytes_out == 0)
creq.stats.c.ratio = 0.0;
else
creq.stats.c.ratio = 256.0 * creq.stats.c.in_count /
creq.stats.c.bytes_out;
if (creq.stats.d.bytes_out == 0) {
creq.stats.d.bytes_out = creq.stats.d.comp_bytes + creq.stats.d.inc_bytes;
creq.stats.d.in_count = creq.stats.d.unc_bytes;
}
if (creq.stats.d.bytes_out == 0)
creq.stats.d.ratio = 0.0;
else
creq.stats.d.ratio = 256.0 * creq.stats.d.in_count /
creq.stats.d.bytes_out;
#endif
*csp = creq.stats;
}
#else /* STREAMS */
int
strioctl(fd, cmd, ptr, ilen, olen)
int fd, cmd, ilen, olen;
char *ptr;
{
struct strioctl str;
str.ic_cmd = cmd;
str.ic_timout = 0;
str.ic_len = ilen;
str.ic_dp = ptr;
if (ioctl(fd, I_STR, &str) == -1)
return -1;
if (str.ic_len != olen)
fprintf(stderr, "strioctl: expected %d bytes, got %d for cmd %x\n",
olen, str.ic_len, cmd);
return 0;
}
static void
get_ppp_stats(curp)
struct ppp_stats *curp;
{
if (strioctl(s, PPPIO_GETSTAT, curp, 0, sizeof(*curp)) < 0) {
fprintf(stderr, "%s: ", progname);
if (errno == EINVAL)
fprintf(stderr, "kernel support missing\n");
else
perror("couldn't get PPP statistics");
exit(1);
}
}
static void
get_ppp_cstats(csp)
struct ppp_comp_stats *csp;
{
if (strioctl(s, PPPIO_GETCSTAT, csp, 0, sizeof(*csp)) < 0) {
fprintf(stderr, "%s: ", progname);
if (errno == ENOTTY) {
fprintf(stderr, "no kernel compression support\n");
if (zflag)
exit(1);
rflag = 0;
} else {
perror("couldn't get PPP compression statistics");
exit(1);
}
}
}
#endif /* STREAMS */
#define MAX0(a) ((int)(a) > 0? (a): 0)
#define V(offset) MAX0(cur.offset - old.offset)
#define W(offset) MAX0(ccs.offset - ocs.offset)
#define RATIO(c, i, u) ((c) == 0? 1.0: (u) / ((double)(c) + (i)))
#define CRATE(x) RATIO(W(x.comp_bytes), W(x.inc_bytes), W(x.unc_bytes))
#define KBPS(n) ((n) / (interval * 1000.0))
/*
* Print a running summary of interface statistics.
* Repeat display every interval seconds, showing statistics
* collected over that interval. Assumes that interval is non-zero.
* First line printed is cumulative.
*/
static void
intpr()
{
register int line = 0;
sigset_t oldmask, mask;
char *bunit;
int ratef = 0;
struct ppp_stats cur, old;
struct ppp_comp_stats ccs, ocs;
memset(&old, 0, sizeof(old));
memset(&ocs, 0, sizeof(ocs));
while (1) {
get_ppp_stats(&cur);
if (zflag || rflag)
get_ppp_cstats(&ccs);
(void)signal(SIGALRM, catchalarm);
signalled = 0;
(void)alarm(interval);
if ((line % 20) == 0) {
if (zflag) {
printf("IN: COMPRESSED INCOMPRESSIBLE COMP | ");
printf("OUT: COMPRESSED INCOMPRESSIBLE COMP\n");
bunit = dflag? "KB/S": "BYTE";
printf(" %s PACK %s PACK RATIO | ", bunit, bunit);
printf(" %s PACK %s PACK RATIO", bunit, bunit);
} else {
printf("%8.8s %6.6s %6.6s",
"IN", "PACK", "VJCOMP");
if (!rflag)
printf(" %6.6s %6.6s", "VJUNC", "VJERR");
if (vflag)
printf(" %6.6s %6.6s", "VJTOSS", "NON-VJ");
if (rflag)
printf(" %6.6s %6.6s", "RATIO", "UBYTE");
printf(" | %8.8s %6.6s %6.6s",
"OUT", "PACK", "VJCOMP");
if (!rflag)
printf(" %6.6s %6.6s", "VJUNC", "NON-VJ");
if (vflag)
printf(" %6.6s %6.6s", "VJSRCH", "VJMISS");
if (rflag)
printf(" %6.6s %6.6s", "RATIO", "UBYTE");
}
putchar('\n');
}
if (zflag) {
if (ratef) {
printf("%8.3f %6u %8.3f %6u %6.2f",
KBPS(W(d.comp_bytes)),
W(d.comp_packets),
KBPS(W(d.inc_bytes)),
W(d.inc_packets),
ccs.d.ratio / 256.0);
printf(" | %8.3f %6u %8.3f %6u %6.2f",
KBPS(W(c.comp_bytes)),
W(c.comp_packets),
KBPS(W(c.inc_bytes)),
W(c.inc_packets),
ccs.c.ratio / 256.0);
} else {
printf("%8u %6u %8u %6u %6.2f",
W(d.comp_bytes),
W(d.comp_packets),
W(d.inc_bytes),
W(d.inc_packets),
ccs.d.ratio / 256.0);
printf(" | %8u %6u %8u %6u %6.2f",
W(c.comp_bytes),
W(c.comp_packets),
W(c.inc_bytes),
W(c.inc_packets),
ccs.c.ratio / 256.0);
}
} else {
if (ratef)
printf("%8.3f", KBPS(V(p.ppp_ibytes)));
else
printf("%8u", V(p.ppp_ibytes));
printf(" %6u %6u",
V(p.ppp_ipackets),
V(vj.vjs_compressedin));
if (!rflag)
printf(" %6u %6u",
V(vj.vjs_uncompressedin),
V(vj.vjs_errorin));
if (vflag)
printf(" %6u %6u",
V(vj.vjs_tossed),
V(p.ppp_ipackets) - V(vj.vjs_compressedin)
- V(vj.vjs_uncompressedin) - V(vj.vjs_errorin));
if (rflag) {
printf(" %6.2f ", CRATE(d));
if (ratef)
printf("%6.2f", KBPS(W(d.unc_bytes)));
else
printf("%6u", W(d.unc_bytes));
}
if (ratef)
printf(" | %8.3f", KBPS(V(p.ppp_obytes)));
else
printf(" | %8u", V(p.ppp_obytes));
printf(" %6u %6u",
V(p.ppp_opackets),
V(vj.vjs_compressed));
if (!rflag)
printf(" %6u %6u",
V(vj.vjs_packets) - V(vj.vjs_compressed),
V(p.ppp_opackets) - V(vj.vjs_packets));
if (vflag)
printf(" %6u %6u",
V(vj.vjs_searches),
V(vj.vjs_misses));
if (rflag) {
printf(" %6.2f ", CRATE(c));
if (ratef)
printf("%6.2f", KBPS(W(c.unc_bytes)));
else
printf("%6u", W(c.unc_bytes));
}
}
putchar('\n');
fflush(stdout);
line++;
count--;
if (!infinite && !count)
break;
sigemptyset(&mask);
sigaddset(&mask, SIGALRM);
sigprocmask(SIG_BLOCK, &mask, &oldmask);
if (!signalled) {
sigemptyset(&mask);
sigsuspend(&mask);
}
sigprocmask(SIG_SETMASK, &oldmask, NULL);
signalled = 0;
(void)alarm(interval);
if (!aflag) {
old = cur;
ocs = ccs;
ratef = dflag;
}
}
}
int
main(argc, argv)
int argc;
char *argv[];
{
int c;
#ifdef STREAMS
int unit;
char *dev;
#endif
interface = PPP_DRV_NAME "0";
if ((progname = strrchr(argv[0], '/')) == NULL)
progname = argv[0];
else
++progname;
while ((c = getopt(argc, argv, "advrzc:w:")) != -1) {
switch (c) {
case 'a':
++aflag;
break;
case 'd':
++dflag;
break;
case 'v':
++vflag;
break;
case 'r':
++rflag;
break;
case 'z':
++zflag;
break;
case 'c':
count = atoi(optarg);
if (count <= 0)
usage();
break;
case 'w':
interval = atoi(optarg);
if (interval <= 0)
usage();
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (!interval && count)
interval = 5;
if (interval && !count)
infinite = 1;
if (!interval && !count)
count = 1;
if (aflag)
dflag = 0;
if (argc > 1)
usage();
if (argc > 0)
interface = argv[0];
#ifndef STREAMS
{
struct ifreq ifr;
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0) {
fprintf(stderr, "%s: ", progname);
perror("couldn't create IP socket");
exit(1);
}
#ifdef __linux__
#undef ifr_name
#define ifr_name ifr_ifrn.ifrn_name
#endif
strncpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
fprintf(stderr, "%s: nonexistent interface '%s' specified\n",
progname, interface);
exit(1);
}
}
#else /* STREAMS */
if (sscanf(interface, PPP_DRV_NAME "%d", &unit) != 1) {
fprintf(stderr, "%s: invalid interface '%s' specified\n",
progname, interface);
}
#ifdef __osf__
dev = "/dev/streams/ppp";
#else
dev = "/dev/" PPP_DRV_NAME;
#endif
if ((s = open(dev, O_RDONLY)) < 0) {
fprintf(stderr, "%s: couldn't open ", progname);
perror(dev);
exit(1);
}
if (strioctl(s, PPPIO_ATTACH, &unit, sizeof(int), 0) < 0) {
fprintf(stderr, "%s: ppp%d is not available\n", progname, unit);
exit(1);
}
#endif /* STREAMS */
intpr();
exit(0);
}
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