/* * print serial line IP statistics: * slstat [-i interval] [-v] [interface] [system] [core] * * Copyright (c) 1989, 1990, 1991, 1992 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@ee.lbl.gov), Dec 31, 1989: * - Initial distribution. */ #ifndef lint static char rcsid[] = "$Id: slstat.c,v 1.3 1994/11/19 13:57:21 jkh Exp $"; #endif #include #include #include #include #define INET #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct nlist nl[] = { #define N_SOFTC 0 { "_sl_softc" }, { 0 } }; #define INTERFACE_PREFIX "sl%d" char interface[IFNAMSIZ]; const char *system = NULL; char *kmemf = NULL; kvm_t *kvm_h; int kflag; int rflag; int vflag; unsigned interval = 5; int unit; extern char *malloc(); extern off_t lseek(); main(argc, argv) int argc; char *argv[]; { int c; char errbuf[_POSIX2_LINE_MAX]; system = getbootfile(); --argc; ++argv; while (argc > 0) { if (strcmp(argv[0], "-v") == 0) { ++vflag; ++argv, --argc; continue; } if (strcmp(argv[0], "-r") == 0) { ++rflag; ++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])) { int s; struct ifreq ifr; unit = atoi(argv[0]); if (unit < 0) usage(); sprintf(interface, INTERFACE_PREFIX, unit); s = socket(AF_INET, SOCK_DGRAM, 0); if (s < 0) err(1, "creating socket"); strcpy(ifr.ifr_name, interface); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) errx(1, "unable to confirm existence of interface '%s'", interface); ++argv, --argc; continue; } if (kflag) usage(); system = *argv; ++argv, --argc; if (argc > 0) { kmemf = *argv++; --argc; kflag++; } } kvm_h = kvm_openfiles(system, kmemf, NULL, O_RDONLY, errbuf); if (kvm_h == 0) { (void)fprintf(stderr, "slstat: kvm_openfiles(%s,%s,0): %s\n", system, kmemf, errbuf); exit(1); } if ((c = kvm_nlist(kvm_h, nl)) != 0) { if (c > 0) { (void)fprintf(stderr, "slstat: undefined symbols in %s:", system); for (c = 0; c < sizeof(nl)/sizeof(nl[0]); c++) if (nl[c].n_type == 0) fprintf(stderr, " %s", nl[c].n_name); (void)fputc('\n', stderr); } else (void)fprintf(stderr, "slstat: kvm_nlist: %s\n", kvm_geterr(kvm_h)); exit(1); } intpr(); exit(0); } #define V(offset) ((line % 20)? ((sc->offset - osc->offset) / \ (rflag ? interval : 1)) : sc->offset) #define AMT (sizeof(*sc) - 2 * sizeof(sc->sc_comp.tstate)) usage() { static char umsg[] = "usage: slstat [-i interval] [-v] [unit] [system] [core]\n"; fprintf(stderr, umsg); exit(1); } u_char signalled; /* set if alarm goes off "early" */ /* * 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; void catchalarm(); struct sl_softc *sc, *osc; off_t addr; addr = nl[N_SOFTC].n_value + unit * sizeof(struct sl_softc); sc = (struct sl_softc *)malloc(AMT); osc = (struct sl_softc *)malloc(AMT); bzero((char *)osc, AMT); while (1) { if (kvm_read(kvm_h, addr, (char *)sc, AMT) < 0) perror("kmem read"); (void)signal(SIGALRM, catchalarm); signalled = 0; (void)alarm(interval); if ((line % 20) == 0) { printf("%8.8s %6.6s %6.6s %6.6s %6.6s", "in", "pack", "comp", "uncomp", "unknwn"); if (vflag) printf(" %6.6s %6.6s %6.6s", "toss", "other", "err"); printf(" | %8.8s %6.6s %6.6s %6.6s %6.6s", "out", "pack", "comp", "uncomp", "other"); if (vflag) printf(" %6.6s %6.6s %6.6s %6.6s", "search", "miss", "err", "coll"); putchar('\n'); } printf("%8u %6d %6u %6u %6u", V(sc_if.if_ibytes), V(sc_if.if_ipackets), V(sc_comp.sls_compressedin), V(sc_comp.sls_uncompressedin), V(sc_comp.sls_errorin)); if (vflag) printf(" %6u %6u %6u", V(sc_comp.sls_tossed), V(sc_if.if_ipackets) - V(sc_comp.sls_compressedin) - V(sc_comp.sls_uncompressedin) - V(sc_comp.sls_errorin), V(sc_if.if_ierrors)); printf(" | %8u %6d %6u %6u %6u", V(sc_if.if_obytes) / (rflag ? interval : 1), V(sc_if.if_opackets), V(sc_comp.sls_compressed), V(sc_comp.sls_packets) - V(sc_comp.sls_compressed), V(sc_if.if_opackets) - V(sc_comp.sls_packets)); if (vflag) printf(" %6u %6u %6u %6u", V(sc_comp.sls_searches), V(sc_comp.sls_misses), V(sc_if.if_oerrors), V(sc_if.if_collisions)); 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. */ void catchalarm() { signalled = 1; } #if 0 #include #include int kd; kopen(system, kmemf, errstr) char *system; char *kmemf; char *errstr; { if (strcmp(system, _PATH_UNIX) == 0 && strcmp(kmemf, _PATH_KMEM) == 0) { system = 0; kmemf = 0; } kd = kvm_openfiles(system, kmemf, (void *)0); if (kd == 0) return -1; return 0; } int knlist(system, nl, errstr) char *system; struct nlist *nl; char *errstr; { if (kd == 0) /* kopen() must be called first */ abort(); if (kvm_nlist(nl) < 0 || nl[0].n_type == 0) { fprintf(stderr, "%s: %s: no namelist\n", errstr, system); return -1; } return 0; } int kread(addr, buf, size) off_t addr; char *buf; int size; { if (kvm_read((char *)addr, buf, size) != size) return -1; return 0; } #endif