udpstat.d revision 235368 
1#!/usr/sbin/dtrace -s
2/*
3 * udpstat.d - print UDP statistics. Uses DTrace.
4 *
5 * This prints UDP statistics every second, retrieved from the MIB provider.
6 *
7 * $Id: udpstat.d 59 2007-10-03 08:21:58Z brendan $
8 *
9 * USAGE:	udpstat.d
10 *
11 * FIELDS:
12 *		UDP_out		UDP datagrams sent
13 *		UDP_outErr	UDP datagrams errored on send
14 *		UDP_in		UDP datagrams received
15 *		UDP_inErr	UDP datagrams undeliverable
16 *		UDP_noPort	UDP datagrams received to closed ports
17 *
18 * The above UDP statistics are documented in the mib2_udp struct
19 * in the /usr/include/inet/mib2.h file; and also in the mib provider
20 * chapter of the DTrace Guide, http://docs.sun.com/db/doc/817-6223.
21 *
22 * COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
23 *
24 * CDDL HEADER START
25 *
26 *  The contents of this file are subject to the terms of the
27 *  Common Development and Distribution License, Version 1.0 only
28 *  (the "License").  You may not use this file except in compliance
29 *  with the License.
30 *
31 *  You can obtain a copy of the license at Docs/cddl1.txt
32 *  or http://www.opensolaris.org/os/licensing.
33 *  See the License for the specific language governing permissions
34 *  and limitations under the License.
35 *
36 * CDDL HEADER END
37 *
38 * 25-Jul-2005  Brendan Gregg   Created this.
39 * 25-Jul-2005	   "      "	Last update.
40 */
41
42#pragma D option quiet
43
44/*
45 * Declare Globals
46 */
47dtrace:::BEGIN
48{
49	UDP_in = 0; UDP_out = 0;
50	UDP_inErr = 0; UDP_outErr = 0; UDP_noPort = 0;
51	LINES = 20; line = 0;
52}
53
54/*
55 * Print Header
56 */
57profile:::tick-1sec { line--; }
58
59profile:::tick-1sec
60/line <= 0 /
61{
62	printf("%11s %11s %11s %11s %11s\n",
63	    "UDP_out", "UDP_outErr", "UDP_in", "UDP_inErr", "UDP_noPort");
64
65	line = LINES;
66}
67
68/*
69 * Save Data
70 */
71mib:::udp*InDatagrams	{ UDP_in += arg0;	}
72mib:::udp*OutDatagrams	{ UDP_out += arg0;	}
73mib:::udpInErrors	{ UDP_inErr += arg0;	}
74mib:::udpInCksumErrs	{ UDP_inErr += arg0;	}
75mib:::udpOutErrors	{ UDP_outErr += arg0;	}
76mib:::udpNoPorts	{ UDP_noPort += arg0;	}
77
78/*
79 * Print Output
80 */
81profile:::tick-1sec
82{
83	printf("%11d %11d %11d %11d %11d\n",
84	    UDP_out, UDP_outErr, UDP_in, UDP_inErr, UDP_noPort);
85
86	/* clear values */
87	UDP_out		= 0;
88	UDP_outErr	= 0;
89	UDP_in		= 0;
90	UDP_inErr	= 0;
91	UDP_noPort	= 0;
92}
93