/* * print PPP statistics: * pppstats [-v] [-r] [-z] [-c count] [-w wait] [interface] * * -v Verbose mode for default display * -r Show compression ratio in default display * -z Show compression statistics instead of default display * * 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. * * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: * - Initial distribution. */ #ifndef lint static char rcsid[] = "$Id: pppstats.c,v 1.11 1995/08/17 11:44:53 paulus Exp $"; #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int vflag, rflag, zflag; /* select type of display */ int interval, count; int infinite; int unit; int s; /* socket file descriptor */ int signalled; /* set if alarm goes off "early" */ char *progname; char interface[IFNAMSIZ]; void usage() { fprintf(stderr, "Usage: %s [-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. */ void catchalarm(arg) int arg; { signalled = 1; } void get_ppp_stats(curp) struct ppp_stats *curp; { struct ifpppstatsreq req; strncpy(req.ifr_name, interface, sizeof(req.ifr_name)); if (ioctl(s, SIOCGPPPSTATS, &req) == 0) { *curp = req.stats; return; } fprintf(stderr, "%s: ", progname); if (errno == ENOTTY) errx(1, "kernel support missing"); else err(1, "couldn't get PPP statistics"); } get_ppp_cstats(csp) struct ppp_comp_stats *csp; { struct ifpppcstatsreq creq; strncpy(creq.ifr_name, interface, sizeof(creq.ifr_name)); if (ioctl(s, SIOCGPPPCSTATS, &creq) == 0) { *csp = creq.stats; return; } if (errno == ENOTTY) { if (zflag) errx(1, "no kernel compression support\n"); warnx("no kernel compression support\n"); rflag = 0; } else err(1, "couldn't get PPP compression stats"); } #define V(offset) (cur.offset - old.offset) #define W(offset) (ccs.offset - ocs.offset) #define CRATE(x) ((x).unc_bytes == 0? 0.0: \ 1.0 - ((double)((x).comp_bytes + (x).inc_bytes) \ / (x).unc_bytes)) /* * 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. */ void intpr() { register int line = 0; sigset_t oldmask, mask; 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"); printf(" BYTE PACK BYTE PACK RATIO | "); printf(" BYTE PACK BYTE PACK RATIO"); } else { printf("%8.8s %6.6s %6.6s %6.6s %6.6s", "IN", "PACK", "VJCOMP", "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 %6.6s %6.6s", "OUT", "PACK", "VJCOMP", "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) { 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 == 0? 0.0: 1 - 1.0 / 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 == 0? 0.0: 1 - 1.0 / ccs.c.ratio * 256.0); } else { printf("%8u %6u %6u %6u %6u", V(p.ppp_ibytes), V(p.ppp_ipackets), V(vj.vjs_compressedin), 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 %6u", CRATE(ccs.d), W(d.unc_bytes)); printf(" | %8u %6u %6u %6u %6u", V(p.ppp_obytes), V(p.ppp_opackets), V(vj.vjs_compressed), 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 %6u", CRATE(ccs.c), W(c.unc_bytes)); } putchar('\n'); fflush(stdout); line++; count--; if (!infinite && !count) break; oldmask = sigblock(sigmask(SIGALRM)); if (signalled == 0) sigpause(0); sigsetmask(oldmask); signalled = 0; (void)alarm(interval); old = cur; ocs = ccs; } } int main(argc, argv) int argc; char *argv[]; { int c; struct ifreq ifr; strcpy(interface, "ppp0"); if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; else ++progname; while ((c = getopt(argc, argv, "vrzc:w:")) != -1) { switch (c) { 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 (argc > 1) usage(); if (argc > 0) strncpy(interface, argv[0], sizeof(interface)); if (sscanf(interface, "ppp%d", &unit) != 1) errx(1, "invalid interface '%s' specified\n", interface); s = socket(AF_INET, SOCK_DGRAM, 0); if (s < 0) err(1, "couldn't create IP socket"); strcpy(ifr.ifr_name, interface); if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) errx(1, "nonexistent interface '%s' specified\n", interface); intpr(); exit(0); }