main.c revision 186904 
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: head/tools/tools/ath/athstats/main.c 186904 2009-01-08 17:12:47Z sam $
30 */
31
32/*
33 * Simple Atheros-specific tool to inspect and monitor network traffic
34 * statistics.
35 *
36 *	athstats [-i interface] [-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 <stdio.h>
45#include <stdlib.h>
46#include <signal.h>
47#include <unistd.h>
48#include <err.h>
49
50#include "athstats.h"
51
52static struct {
53	const char *tag;
54	const char *fmt;
55} tags[] = {
56  { "default",
57    "input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,rate"
58  },
59  { "ani",
60    "avgbrssi,avgrssi,avgtxrssi,NI,SI,step,owsd,cwst,NI+,NI-,SI+,SI-,OFDM,CCK,LISTEN"
61  },
62  { "tdma",
63    "input,output,bexmit,tdmau,tdmadj,crcerr,phyerr,phytor,rssi,noise,rate"
64  },
65};
66
67static const char *
68getfmt(const char *tag)
69{
70#define	N(a)	(sizeof(a)/sizeof(a[0]))
71	int i;
72	for (i = 0; i < N(tags); i++)
73		if (strcasecmp(tags[i].tag, tag) == 0)
74			return tags[i].fmt;
75	errx(-1, "unknown tag \%s\"", tag);
76	/*NOTREACHED*/
77#undef N
78}
79
80static int signalled;
81
82static void
83catchalarm(int signo __unused)
84{
85	signalled = 1;
86}
87
88int
89main(int argc, char *argv[])
90{
91	struct athstatfoo *wf;
92	const char *ifname;
93	int c;
94
95	ifname = getenv("ATH");
96	if (ifname == NULL)
97		ifname = "ath0";
98	wf = athstats_new(ifname, getfmt("default"));
99	while ((c = getopt(argc, argv, "i:lo:")) != -1) {
100		switch (c) {
101		case 'i':
102			wf->setifname(wf, optarg);
103			break;
104		case 'l':
105			wf->print_fields(wf, stdout);
106			return 0;
107		case 'o':
108			wf->setfmt(wf, getfmt(optarg));
109			break;
110		default:
111			errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [interval]\n", argv[0]);
112			/*NOTREACHED*/
113		}
114	}
115	argc -= optind;
116	argv += optind;
117
118	if (argc > 0) {
119		u_long interval = strtoul(argv[0], NULL, 0);
120		int line, omask;
121
122		if (interval < 1)
123			interval = 1;
124		signal(SIGALRM, catchalarm);
125		signalled = 0;
126		alarm(interval);
127	banner:
128		wf->print_header(wf, stdout);
129		line = 0;
130	loop:
131		if (line != 0) {
132			wf->collect_cur(wf);
133			wf->print_current(wf, stdout);
134			wf->update_tot(wf);
135		} else {
136			wf->collect_tot(wf);
137			wf->print_total(wf, stdout);
138		}
139		fflush(stdout);
140		omask = sigblock(sigmask(SIGALRM));
141		if (!signalled)
142			sigpause(0);
143		sigsetmask(omask);
144		signalled = 0;
145		alarm(interval);
146		line++;
147		if (line == 21)		/* XXX tty line count */
148			goto banner;
149		else
150			goto loop;
151		/*NOTREACHED*/
152	} else {
153		wf->collect_tot(wf);
154		wf->print_verbose(wf, stdout);
155	}
156	return 0;
157}
158