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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 <stdio.h>
45 #include <stdlib.h>
46 #include <signal.h>
47 #include <unistd.h>
48 #include <string.h>
49 #include <err.h>
50
51 #include "athstats.h"
52
53 static struct {
54         const char *tag;
55         const char *fmt;
56 } tags[] = {
57   { "default",
58     "input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,rate"
59   },
60   { "ani",
61     "avgbrssi,avgrssi,avgtxrssi,NI,SI,step,owsd,cwst,NI+,NI-,SI+,SI-,OFDM,CCK,LISTEN"
62   },
63   { "tdma",
64     "input,output,bexmit,tdmau,tdmadj,crcerr,phyerr,phytor,rssi,noise,rate"
65   },
66 };
67
68 static const char *
69 getfmt(const char *tag)
70 {
71 #define N(a)    (sizeof(a)/sizeof(a[0]))
72         int i;
73         for (i = 0; i < N(tags); i++)
74                 if (strcasecmp(tags[i].tag, tag) == 0)
75                         return tags[i].fmt;
76         return tag;
77 #undef N
78 }
79
80 static int signalled;
81
82 static void
83 catchalarm(int signo __unused)
84 {
85         signalled = 1;
86 }
87
88 int
89 main(int argc, char *argv[])
90 {
91         struct athstatfoo *wf;
92         const char *ifname;
93         int c, banner = 1;
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, "bi:lo:z")) != -1) {
100                 switch (c) {
101                 case 'b':
102                         banner = 0;
103                         break;
104                 case 'i':
105                         wf->setifname(wf, optarg);
106                         break;
107                 case 'l':
108                         wf->print_fields(wf, stdout);
109                         return 0;
110                 case 'o':
111                         wf->setfmt(wf, getfmt(optarg));
112                         break;
113                 case 'z':
114                         wf->zerostats(wf);
115                         break;
116                 default:
117                         errx(-1, "usage: %s [-a] [-i ifname] [-l] [-o fmt] [-z] [interval]\n", argv[0]);
118                         /*NOTREACHED*/
119                 }
120         }
121         argc -= optind;
122         argv += optind;
123
124         if (argc > 0) {
125                 u_long interval = strtoul(argv[0], NULL, 0);
126                 int line, omask;
127
128                 if (interval < 1)
129                         interval = 1;
130                 signal(SIGALRM, catchalarm);
131                 signalled = 0;
132                 alarm(interval);
133         banner:
134                 if (banner)
135                         wf->print_header(wf, stdout);
136                 line = 0;
137         loop:
138                 if (line != 0) {
139                         wf->collect_cur(wf);
140                         wf->print_current(wf, stdout);
141                         wf->update_tot(wf);
142                 } else {
143                         wf->collect_tot(wf);
144                         wf->print_total(wf, stdout);
145                 }
146                 fflush(stdout);
147                 omask = sigblock(sigmask(SIGALRM));
148                 if (!signalled)
149                         sigpause(0);
150                 sigsetmask(omask);
151                 signalled = 0;
152                 alarm(interval);
153                 line++;
154                 if (line == 21)         /* XXX tty line count */
155                         goto banner;
156                 else
157                         goto loop;
158                 /*NOTREACHED*/
159         } else {
160                 wf->collect_tot(wf);
161                 wf->print_verbose(wf, stdout);
162         }
163         return 0;
164 }