408 lines
8.3 KiB
C
408 lines
8.3 KiB
C
/*
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* print PPP statistics:
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* pppstats [-i interval] [-v] [interface] [system] [core]
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*
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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 Jaconson
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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 1.4 1995/05/30 03:51:18 rgrimes Exp $";
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <nlist.h>
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#include <stdio.h>
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#include <limits.h>
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#include <signal.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 <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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#define VJC 1
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#include <net/slcompress.h>
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#ifndef STREAMS
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#include <net/if_ppp.h>
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#endif
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#ifdef STREAMS
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#define PPP_STATS 1 /* should be defined iff it is in ppp_if.c */
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#include <sys/stream.h>
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#include <net/ppp_str.h>
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#endif
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#define INTERFACE_PREFIX "ppp%d"
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char interface[IFNAMSIZ];
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#ifdef BSD4_4
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#define KVMLIB
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#endif
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#ifndef KVMLIB
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#include <machine/pte.h>
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#ifdef ultrix
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#include <machine/cpu.h>
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#endif
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struct pte *Sysmap;
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int kmem;
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char *kmemf = "/dev/kmem";
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extern off_t lseek();
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#else /* KVMLIB */
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char *kmemf;
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#if defined(sun) || defined(BSD4_4)
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#include <kvm.h>
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kvm_t *kd;
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#define KDARG kd,
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#else /* sun */
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#define KDARG
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#endif /* sun */
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#endif /* KVMLIB */
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#ifdef STREAMS
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struct nlist nl[] = {
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#define N_SOFTC 0
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{ "_pii" },
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"",
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};
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#else
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struct nlist nl[] = {
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#define N_SOFTC 0
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{ "_ppp_softc" },
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"",
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};
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#endif
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#ifndef BSD4_4
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char *system = "/vmunix";
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#else
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#include <paths.h>
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#if defined(__FreeBSD__)
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/* _PATH_UNIX is defined as "Do not use _PATH_UNIX" */
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char *system = NULL;
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#else
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char *system = _PATH_UNIX;
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#endif
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#endif
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int kflag;
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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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main(argc, argv)
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int argc;
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char *argv[];
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{
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char errbuf[_POSIX2_LINE_MAX];
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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], "-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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#ifndef KVMLIB
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if (nlist(system, nl) < 0 || nl[0].n_type == 0) {
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fprintf(stderr, "%s: no namelist\n", system);
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exit(1);
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}
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kmem = open(kmemf, O_RDONLY);
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if (kmem < 0) {
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perror(kmemf);
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exit(1);
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}
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#ifndef ultrix
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if (kflag) {
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off_t off;
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Sysmap = (struct pte *)
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malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
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if (!Sysmap) {
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fputs("pppstats: can't get memory for Sysmap.\n", stderr);
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exit(1);
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}
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off = nl[N_SYSMAP].n_value & ~KERNBASE;
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(void)lseek(kmem, off, L_SET);
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(void)read(kmem, (char *)Sysmap,
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(int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
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}
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#endif
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#else
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#if defined(sun)
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/* SunOS */
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if ((kd = kvm_open(system, kmemf, (char *)0, O_RDONLY, NULL)) == NULL) {
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perror("kvm_open");
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exit(1);
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}
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#elif defined(BSD4_4)
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/* BSD4.4+ */
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if ((kd = kvm_openfiles(system, kmemf, NULL, O_RDONLY, errbuf)) == NULL) {
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fprintf(stderr, "kvm_openfiles: %s\n", errbuf);
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exit(1);
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}
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#else
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/* BSD4.3+ */
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if (kvm_openfiles(system, kmemf, (char *)0) == -1) {
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fprintf(stderr, "kvm_openfiles: %s\n", kvm_geterr());
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exit(1);
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}
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#endif
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if (kvm_nlist(KDARG nl)) {
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fprintf(stderr, "pppstats: can't find symbols in nlist\n");
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exit(1);
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}
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#endif
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intpr();
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exit(0);
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}
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#ifndef KVMLIB
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/*
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* Seek into the kernel for a value.
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*/
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off_t
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klseek(fd, base, off)
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int fd, off;
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off_t base;
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{
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if (kflag) {
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#ifdef ultrix
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base = K0_TO_PHYS(base);
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#else
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/* get kernel pte */
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base &= ~KERNBASE;
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base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
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#endif
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}
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return (lseek(fd, base, off));
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}
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#endif
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usage()
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{
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fprintf(stderr,"usage: pppstats [-i interval] [-v] [unit] [system] [core]\n");
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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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#define V(offset) ((line % 20)? sc->offset - osc->offset : sc->offset)
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#ifdef STREAMS
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#define STRUCT struct ppp_if_info
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#define COMP pii_sc_comp
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#define STATS pii_ifnet
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#else
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#define STRUCT struct ppp_softc
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#define COMP sc_comp
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#define STATS sc_if
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#endif
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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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#ifdef __STDC__
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void catchalarm(int);
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#else
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void catchalarm();
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#endif
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STRUCT *sc, *osc;
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nl[N_SOFTC].n_value += unit * sizeof(STRUCT);
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sc = (STRUCT *)malloc(sizeof(STRUCT));
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osc = (STRUCT *)malloc(sizeof(STRUCT));
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bzero((char *)osc, sizeof(STRUCT));
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while (1) {
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#ifndef KVMLIB
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if (klseek(kmem, (off_t)nl[N_SOFTC].n_value, 0) == -1) {
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perror("kmem seek");
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exit(1);
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}
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if (read(kmem, (char *)sc, sizeof(STRUCT)) <= 0) {
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perror("kmem read");
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exit(1);
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}
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#else
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if (kvm_read(KDARG nl[N_SOFTC].n_value, sc,
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sizeof(STRUCT)) != sizeof(STRUCT)) {
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perror("kvm_read");
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exit(1);
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}
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#endif
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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("%6.6s %6.6s %6.6s %6.6s %6.6s",
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"in", "pack", "comp", "uncomp", "err");
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if (vflag)
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printf(" %6.6s %6.6s", "toss", "ip");
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printf(" | %6.6s %6.6s %6.6s %6.6s %6.6s",
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"out", "pack", "comp", "uncomp", "ip");
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if (vflag)
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printf(" %6.6s %6.6s", "search", "miss");
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putchar('\n');
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}
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printf("%6d %6d %6d %6d %6d",
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#ifdef BSD4_4
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V(STATS.if_ibytes),
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#else
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#ifndef STREAMS
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V(sc_bytesrcvd),
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#else
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#ifdef PPP_STATS
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V(pii_stats.ppp_ibytes),
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#else
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0,
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#endif
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#endif
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#endif
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V(STATS.if_ipackets),
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V(COMP.sls_compressedin),
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V(COMP.sls_uncompressedin),
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V(COMP.sls_errorin));
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if (vflag)
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printf(" %6d %6d",
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V(COMP.sls_tossed),
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V(STATS.if_ipackets) - V(COMP.sls_compressedin) -
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V(COMP.sls_uncompressedin) - V(COMP.sls_errorin));
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printf(" | %6d %6d %6d %6d %6d",
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#ifdef BSD4_4
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V(STATS.if_obytes),
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#else
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#ifndef STREAMS
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V(sc_bytessent),
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#else
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#ifdef PPP_STATS
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V(pii_stats.ppp_obytes),
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#else
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0,
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#endif
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#endif
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#endif
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V(STATS.if_opackets),
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V(COMP.sls_compressed),
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V(COMP.sls_packets) - V(COMP.sls_compressed),
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V(STATS.if_opackets) - V(COMP.sls_packets));
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if (vflag)
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printf(" %6d %6d",
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V(COMP.sls_searches),
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V(COMP.sls_misses));
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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, sizeof(STRUCT));
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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 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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