#!/usr/sbin/dtrace -s
/*
* udpstat.d - print UDP statistics. Uses DTrace.
*
* This prints UDP statistics every second, retrieved from the MIB provider.
*
* 25-Jul-2005, ver 0.70 (first release)
*
* USAGE: udpstat.d
*
* FIELDS:
* UDP_out UDP datagrams sent
* UDP_outErr UDP datagrams errored on send
* UDP_in UDP datagrams received
* UDP_inErr UDP datagrams undeliverable
* UDP_noPort UDP datagrams received to closed ports
*
* The above UDP statistics are documented in the mib2_udp struct
* in the /usr/include/inet/mib2.h file; and also in the mib provider
* chapter of the DTrace Guide, http://docs.sun.com/db/doc/817-6223.
*
* COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at Docs/cddl1.txt
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* CDDL HEADER END
*
* 25-Jul-2005 Brendan Gregg Created this.
*/
#pragma D option quiet
/*
* Declare Globals
*/
dtrace:::BEGIN
{
UDP_in = 0; UDP_out = 0;
UDP_inErr = 0; UDP_outErr = 0; UDP_noPort = 0;
LINES = 20; line = 0;
}
/*
* Print Header
*/
profile:::tick-1sec { line--; }
profile:::tick-1sec
/line <= 0 /
{
printf("%11s %11s %11s %11s %11s\n",
"UDP_out", "UDP_outErr", "UDP_in", "UDP_inErr", "UDP_noPort");
line = LINES;
}
/*
* Save Data
*/
mib:::udpInDatagrams { UDP_in += arg0; }
mib:::udpOutDatagrams { UDP_out += arg0; }
mib:::udpInErrors { UDP_inErr += arg0; }
mib:::udpInCksumErrs { UDP_inErr += arg0; }
mib:::udpOutErrors { UDP_outErr += arg0; }
mib:::udpNoPorts { UDP_noPort += arg0; }
/*
* Print Output
*/
profile:::tick-1sec
{
printf("%11d %11d %11d %11d %11d\n",
UDP_out, UDP_outErr, UDP_in, UDP_inErr, UDP_noPort);
/* clear values */
UDP_out = 0;
UDP_outErr = 0;
UDP_in = 0;
UDP_inErr = 0;
UDP_noPort = 0;
}