tools/tools/ath/athstats/main.c

   1 /*-
   2  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification.
  11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  13  *    redistribution must be conditioned upon including a substantially
  14  *    similar Disclaimer requirement for further binary redistribution.
  15  *
  16  * NO WARRANTY
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  27  * THE POSSIBILITY OF SUCH DAMAGES.
  28  *
  29  * $FreeBSD$
  30  */
  31
  32 /*
  33  * Simple Atheros-specific tool to inspect and monitor network traffic
  34  * statistics.
  35  *
  36  *      athstats [-i interface] [-bz] [-l] [-o fmtstring] [interval]
  37  *
  38  * (default interface is ath0).  If interval is specified a rolling output
  39  * a la netstat -i is displayed every interval seconds.  The format of
  40  * the rolling display can be controlled a la ps.  The -l option will
  41  * print a list of all possible statistics for use with the -o option.
  42  */
  43
  44 #include <sys/param.h>
  45
  46 #include <err.h>
  47 #include <signal.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <string.h>
  51 #include <unistd.h>
  52
  53 #include "athstats.h"
  54
  55 static struct {
  56         const char *tag;
  57         const char *fmt;
  58 } tags[] = {
  59   { "default",
  60     "input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,rate"
  61   },
  62   { "ani",
  63     "avgbrssi,avgrssi,avgtxrssi,NI,SI,step,owsd,cwst,NI+,NI-,SI+,SI-,OFDM,CCK,LISTEN"
  64   },
  65   { "tdma",
  66     "input,output,bexmit,tdmau,tdmadj,crcerr,phyerr,phytor,rssi,noise,rate"
  67   },
  68   { "beacon",
  69     "bstuck,bmiss,bexmit,beacons,bmisscount,reset,ofdm,cck,input,output"
  70   },
  71 };
  72
  73 static const char *
  74 getfmt(const char *tag)
  75 {
  76         int i;
  77         for (i = 0; i < nitems(tags); i++)
  78                 if (strcasecmp(tags[i].tag, tag) == 0)
  79                         return tags[i].fmt;
  80         return tag;
  81 }
  82
  83 static int signalled;
  84
  85 static void
  86 catchalarm(int signo __unused)
  87 {
  88         signalled = 1;
  89 }
  90
  91 int
  92 main(int argc, char *argv[])
  93 {
  94         struct athstatfoo *wf;
  95         const char *ifname;
  96         int c, banner = 1;
  97
  98         ifname = getenv("ATH");
  99         if (ifname == NULL)
 100                 ifname = ATH_DEFAULT;
 101         wf = athstats_new(ifname, getfmt("default"));
 102         while ((c = getopt(argc, argv, "bi:lo:z")) != -1) {
 103                 switch (c) {
 104                 case 'b':
 105                         banner = 0;
 106                         break;
 107                 case 'i':
 108                         wf->setifname(wf, optarg);
 109                         break;
 110                 case 'l':
 111                         wf->print_fields(wf, stdout);
 112                         return 0;
 113                 case 'o':
 114                         wf->setfmt(wf, getfmt(optarg));
 115                         break;
 116                 case 'z':
 117                         wf->zerostats(wf);
 118                         break;
 119                 default:
 120                         errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [-z] [interval]\n", argv[0]);
 121                         /*NOTREACHED*/
 122                 }
 123         }
 124         argc -= optind;
 125         argv += optind;
 126
 127         if (argc > 0) {
 128                 u_long interval = strtoul(argv[0], NULL, 0);
 129                 int line, omask;
 130
 131                 if (interval < 1)
 132                         interval = 1;
 133                 signal(SIGALRM, catchalarm);
 134                 signalled = 0;
 135                 alarm(interval);
 136         banner:
 137                 if (banner)
 138                         wf->print_header(wf, stdout);
 139                 line = 0;
 140         loop:
 141                 if (line != 0) {
 142                         wf->collect_cur(wf);
 143                         wf->print_current(wf, stdout);
 144                         wf->update_tot(wf);
 145                 } else {
 146                         wf->collect_tot(wf);
 147                         wf->print_total(wf, stdout);
 148                 }
 149                 fflush(stdout);
 150                 omask = sigblock(sigmask(SIGALRM));
 151                 if (!signalled)
 152                         sigpause(0);
 153                 sigsetmask(omask);
 154                 signalled = 0;
 155                 alarm(interval);
 156                 line++;
 157                 if (line == 21)         /* XXX tty line count */
 158                         goto banner;
 159                 else
 160                         goto loop;
 161                 /*NOTREACHED*/
 162         } else {
 163                 wf->collect_tot(wf);
 164                 wf->print_verbose(wf, stdout);
 165         }
 166         return 0;
 167 }