db85ed15df
work is actually more comprehensive, but I just took what was needed for now given our compressed time schedules. Thanks, Adam! Submitted by: glass
316 lines
6.9 KiB
C
316 lines
6.9 KiB
C
/*
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* print serial line IP statistics:
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* slstat [-i interval] [-v] [interface] [system] [core]
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*
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* Copyright (c) 1989, 1990, 1991, 1992 Regents of the University of
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* California. 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@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: slstat.c,v 1.2 1994/10/17 06:05:32 davidg Exp $";
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#endif
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#include <stdio.h>
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#include <paths.h>
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#include <nlist.h>
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#include <kvm.h>
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#define INET
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#include <limits.h>
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/file.h>
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#include <errno.h>
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#include <signal.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <net/slcompress.h>
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#include <net/if_slvar.h>
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struct nlist nl[] = {
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#define N_SOFTC 0
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{ "_sl_softc" },
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{ 0 }
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};
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#define INTERFACE_PREFIX "sl%d"
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char interface[IFNAMSIZ];
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const char *system = NULL;
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char *kmemf = NULL;
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kvm_t *kvm_h;
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int kflag;
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int rflag;
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int vflag;
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unsigned interval = 5;
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int unit;
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extern char *malloc();
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extern off_t lseek();
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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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char errbuf[_POSIX2_LINE_MAX];
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system = getbootfile();
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--argc; ++argv;
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while (argc > 0) {
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if (strcmp(argv[0], "-v") == 0) {
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++vflag;
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++argv, --argc;
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continue;
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}
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if (strcmp(argv[0], "-r") == 0) {
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++rflag;
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++argv, --argc;
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continue;
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}
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if (strcmp(argv[0], "-i") == 0 && argv[1] &&
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isdigit(argv[1][0])) {
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interval = atoi(argv[1]);
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if (interval <= 0)
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usage();
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++argv, --argc;
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++argv, --argc;
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continue;
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}
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if (isdigit(argv[0][0])) {
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int s;
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struct ifreq ifr;
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unit = atoi(argv[0]);
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if (unit < 0)
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usage();
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sprintf(interface, INTERFACE_PREFIX, unit);
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0)
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err(1, "creating 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,
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"unable to confirm existence of interface '%s'",
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interface);
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++argv, --argc;
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continue;
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}
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if (kflag)
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usage();
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system = *argv;
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++argv, --argc;
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if (argc > 0) {
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kmemf = *argv++;
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--argc;
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kflag++;
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}
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}
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kvm_h = kvm_openfiles(system, kmemf, NULL, O_RDONLY, errbuf);
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if (kvm_h == 0) {
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(void)fprintf(stderr,
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"slstat: kvm_openfiles(%s,%s,0): %s\n",
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system, kmemf, errbuf);
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exit(1);
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}
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if ((c = kvm_nlist(kvm_h, nl)) != 0) {
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if (c > 0) {
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(void)fprintf(stderr,
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"slstat: undefined symbols in %s:", system);
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for (c = 0; c < sizeof(nl)/sizeof(nl[0]); c++)
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if (nl[c].n_type == 0)
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fprintf(stderr, " %s", nl[c].n_name);
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(void)fputc('\n', stderr);
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} else
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(void)fprintf(stderr, "slstat: kvm_nlist: %s\n",
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kvm_geterr(kvm_h));
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exit(1);
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}
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intpr();
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exit(0);
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}
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#define V(offset) ((line % 20)? ((sc->offset - osc->offset) / \
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(rflag ? interval : 1)) : sc->offset)
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#define AMT (sizeof(*sc) - 2 * sizeof(sc->sc_comp.tstate))
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usage()
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{
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static char umsg[] =
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"usage: slstat [-i interval] [-v] [unit] [system] [core]\n";
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fprintf(stderr, umsg);
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exit(1);
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}
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u_char signalled; /* set if alarm goes off "early" */
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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 at top of screen is always cumulative.
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*/
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intpr()
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{
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register int line = 0;
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int oldmask;
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void catchalarm();
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struct sl_softc *sc, *osc;
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off_t addr;
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addr = nl[N_SOFTC].n_value + unit * sizeof(struct sl_softc);
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sc = (struct sl_softc *)malloc(AMT);
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osc = (struct sl_softc *)malloc(AMT);
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bzero((char *)osc, AMT);
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while (1) {
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if (kvm_read(kvm_h, addr, (char *)sc, AMT) < 0)
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perror("kmem read");
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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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printf("%8.8s %6.6s %6.6s %6.6s %6.6s",
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"in", "pack", "comp", "uncomp", "unknwn");
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if (vflag)
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printf(" %6.6s %6.6s %6.6s",
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"toss", "other", "err");
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printf(" | %8.8s %6.6s %6.6s %6.6s %6.6s",
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"out", "pack", "comp", "uncomp", "other");
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if (vflag)
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printf(" %6.6s %6.6s %6.6s %6.6s",
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"search", "miss", "err", "coll");
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putchar('\n');
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}
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printf("%8u %6d %6u %6u %6u",
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V(sc_if.if_ibytes),
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V(sc_if.if_ipackets),
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V(sc_comp.sls_compressedin),
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V(sc_comp.sls_uncompressedin),
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V(sc_comp.sls_errorin));
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if (vflag)
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printf(" %6u %6u %6u",
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V(sc_comp.sls_tossed),
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V(sc_if.if_ipackets) -
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V(sc_comp.sls_compressedin) -
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V(sc_comp.sls_uncompressedin) -
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V(sc_comp.sls_errorin),
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V(sc_if.if_ierrors));
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printf(" | %8u %6d %6u %6u %6u",
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V(sc_if.if_obytes) / (rflag ? interval : 1),
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V(sc_if.if_opackets),
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V(sc_comp.sls_compressed),
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V(sc_comp.sls_packets) - V(sc_comp.sls_compressed),
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V(sc_if.if_opackets) - V(sc_comp.sls_packets));
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if (vflag)
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printf(" %6u %6u %6u %6u",
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V(sc_comp.sls_searches),
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V(sc_comp.sls_misses),
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V(sc_if.if_oerrors),
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V(sc_if.if_collisions));
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putchar('\n');
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fflush(stdout);
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line++;
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oldmask = sigblock(sigmask(SIGALRM));
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if (! signalled) {
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sigpause(0);
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}
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sigsetmask(oldmask);
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signalled = 0;
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(void)alarm(interval);
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bcopy((char *)sc, (char *)osc, AMT);
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}
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}
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/*
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* Called if an interval expires before sidewaysintpr 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()
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{
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signalled = 1;
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}
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#if 0
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#include <kvm.h>
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#include <fcntl.h>
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int kd;
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kopen(system, kmemf, errstr)
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char *system;
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char *kmemf;
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char *errstr;
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{
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if (strcmp(system, _PATH_UNIX) == 0 &&
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strcmp(kmemf, _PATH_KMEM) == 0) {
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system = 0;
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kmemf = 0;
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}
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kd = kvm_openfiles(system, kmemf, (void *)0);
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if (kd == 0)
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return -1;
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return 0;
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}
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int
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knlist(system, nl, errstr)
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char *system;
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struct nlist *nl;
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char *errstr;
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{
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if (kd == 0)
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/* kopen() must be called first */
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abort();
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if (kvm_nlist(nl) < 0 || nl[0].n_type == 0) {
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fprintf(stderr, "%s: %s: no namelist\n", errstr, system);
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return -1;
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}
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return 0;
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}
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int
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kread(addr, buf, size)
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off_t addr;
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char *buf;
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int size;
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{
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if (kvm_read((char *)addr, buf, size) != size)
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return -1;
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return 0;
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}
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#endif
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