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- /*
- * print serial line IP statistics:
- * slstats [-i interval] [-v] [interface] [system] [core]
- *
- * 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.
- *
- * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:
- * - Initial distribution.
- */
-
- #ifndef lint
- static char *rcsid = "$Header: slstats.c,v 1.6 89/12/31 08:53:05 van Exp $";
- #endif
-
-
- #include <sys/param.h>
- #include <sys/mbuf.h>
- #include <sys/types.h>
- #include <sys/vmmac.h>
- #include <sys/socket.h>
- #include <sys/file.h>
- #include <machine/pte.h>
- #include <ctype.h>
- #include <errno.h>
- #include <nlist.h>
- #include <stdio.h>
- #include <signal.h>
- #include <net/if.h>
- #include <netinet/in.h>
- #include <netinet/in_systm.h>
- #include <netinet/ip.h>
- #include <netinet/ip_var.h>
-
- #include "slcompress.h"
- #ifdef PPP
- #define VJC 1
- #define PPP_STATS 1
- #include <sys/slip_var.h>
- #include <sys/stream.h>
- #include <sys/stropts.h>
- #include "ppp_str.h"
- #else
- #include <net/if_slvar.h>
- #endif
- #ifdef sun
- #define KERNBASE KERNELBASE
- #endif
- #ifdef sun386
- struct nlist nl[] = {
- #define N_SOFTC 0
- #ifdef PPP
- { "pii" },
- #else
- { "sl_softc" },
- #endif
- #define N_SYSSIZE 1
- { "syssize" },
- #define N_SYSMAP 2
- { "sysmap" },
- "",
- };
-
- #else
- struct nlist nl[] = {
- #define N_SOFTC 0
- #ifdef PPP
- { "_pii" },
- #else
- { "_sl_softc" },
- #endif
- #define N_SYSSIZE 1
- { "_syssize" },
- #define N_SYSMAP 2
- { "_sysmap" },
- "",
- };
- #endif
- struct pte *Sysmap;
-
- char *system = "/vmunix";
- char *kmemf = "/dev/kmem";
- int kmem;
- int kflag;
- int vflag;
- unsigned interval = 5;
- int unit;
-
-
- extern char *malloc();
- extern off_t lseek();
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- --argc; ++argv;
- while (argc > 0) {
- if (strcmp(argv[0], "-v") == 0) {
- ++vflag;
- ++argv, --argc;
- continue;
- }
- if (strcmp(argv[0], "-i") == 0 && argv[1] &&
- isdigit(argv[1][0])) {
- interval = atoi(argv[1]);
- if (interval <= 0)
- usage();
- ++argv, --argc;
- ++argv, --argc;
- continue;
- }
- if (isdigit(argv[0][0])) {
- unit = atoi(argv[0]);
- if (unit < 0)
- usage();
- ++argv, --argc;
- continue;
- }
- if (kflag)
- usage();
-
- system = *argv;
- ++argv, --argc;
- if (argc > 0) {
- kmemf = *argv++;
- --argc;
- kflag++;
- }
- }
- #ifdef sun386
- if (nlist(system, nl) < 0 || nl[0].n_value== 0) {
- #else
- if (nlist(system, nl) < 0 || nl[0].n_type == 0) {
- #endif
- fprintf(stderr, "%s: no namelist\n", system);
- exit(1);
- }
- kmem = open(kmemf, O_RDONLY);
- if (kmem < 0) {
- perror(kmemf);
- exit(1);
- }
- if (kflag) {
- off_t off;
-
- Sysmap = (struct pte *)
- malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
- if (!Sysmap) {
- fputs("netstat: can't get memory for Sysmap.\n", stderr);
- exit(1);
- }
- off = nl[N_SYSMAP].n_value & ~KERNBASE;
- (void)lseek(kmem, off, L_SET);
- (void)read(kmem, (char *)Sysmap,
- (int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
- }
- intpr();
- exit(0);
- }
-
- /*
- * Seek into the kernel for a value.
- */
- off_t
- klseek(fd, base, off)
- int fd, off;
- off_t base;
- {
- if (kflag) {
- /* get kernel pte */
- base &= ~KERNBASE;
-
- #ifdef _sun3x_pte_h
- base = ctob(Sysmap[btop(base)].pte_pfn) + (base & PGOFSET);
- #else
- base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
- #endif
-
- }
- return (lseek(fd, base, off));
- }
-
- usage()
- {
- fprintf(stderr,"usage: slstats [-i interval] [-v] [unit] [system] [core]\n");
- exit(1);
- }
-
- u_char signalled; /* set if alarm goes off "early" */
-
- #define V(offset) ((line % 20)? sc->offset - osc->offset : sc->offset)
- #ifndef PPP
- #define AMT (sizeof(*sc) - 2 * sizeof(sc->sc_comp.tstate))
- #else
- #define AMT (sizeof(*sc))
- #endif
- /*
- * 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 at top of screen is always cumulative.
- */
- intpr()
- {
- register int line = 0;
- int oldmask;
- int catchalarm();
- #ifdef PPP
- struct ppp_if_info *sc, *osc;
- nl[N_SOFTC].n_value += unit * sizeof(struct ppp_if_info);
- sc = (struct ppp_if_info *)malloc(AMT);
- osc = (struct ppp_if_info *)malloc(AMT);
-
- #else
- struct sl_softc *sc, *osc;
- nl[N_SOFTC].n_value += unit * sizeof(struct sl_softc);
- sc = (struct sl_softc *)malloc(AMT);
- osc = (struct sl_softc *)malloc(AMT);
- #endif
- bzero((char *)osc, AMT);
-
- while (1) {
- if (klseek(kmem, (off_t)nl[N_SOFTC].n_value, 0) < 0)
- if(errno != EINTR)
- perror("kmem seek");
- if (read(kmem, (char *)sc, AMT) <= 0)
- perror("kmem read");
-
- (void)signal(SIGALRM, catchalarm);
- signalled = 0;
- (void)alarm(interval);
-
- if ((line % 20) == 0) {
- printf("%6.6s %6.6s %6.6s %6.6s %6.6s",
- "in", "pack", "comp", "uncomp", "err");
- if (vflag)
- printf(" %6.6s %6.6s", "toss", "ip");
- printf(" | %6.6s %6.6s %6.6s %6.6s %6.6s",
- "out", "pack", "comp", "uncomp", "ip");
- if (vflag)
- printf(" %6.6s %6.6s", "search", "miss");
- putchar('\n');
- }
- #ifdef PPP
- #define COMP pii_sc_comp
- #define STATS pii_stats
- #else
- #define COMP sc_comp
- #define STATS stats
- #endif
- printf("%6d %6d %6d %6d %6d",
- V(STATS.sl_ibytes),
- V(STATS.sl_ipackets),
- V(COMP.sls_compressedin),
- V(COMP.sls_uncompressedin),
- V(COMP.sls_errorin));
- if (vflag)
- printf(" %6d %6d",
- V(COMP.sls_tossed),
- V(STATS.sl_ipackets) -
- V(COMP.sls_compressedin) -
- V(COMP.sls_uncompressedin) -
- V(COMP.sls_errorin));
- printf(" | %6d %6d %6d %6d %6d",
- V(STATS.sl_obytes),
- V(STATS.sl_opackets),
- V(COMP.sls_compressed),
- V(COMP.sls_packets) - V(COMP.sls_compressed),
- V(STATS.sl_opackets) - V(COMP.sls_packets));
- if (vflag)
- printf(" %6d %6d",
- V(COMP.sls_searches),
- V(COMP.sls_misses));
-
- putchar('\n');
- fflush(stdout);
- line++;
- oldmask = sigblock(sigmask(SIGALRM));
- if (! signalled) {
- sigpause(0);
- }
- sigsetmask(oldmask);
- signalled = 0;
- (void)alarm(interval);
- bcopy((char *)sc, (char *)osc, AMT);
- }
- }
-
- /*
- * Called if an interval expires before sidewaysintpr has completed a loop.
- * Sets a flag to not wait for the alarm.
- */
- catchalarm()
- {
- signalled = 1;
- }
-