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 * 25-Jul-2005, ver 0.70 (first release) 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 */ 40 41#pragma D option quiet 42 43/* 44 * Declare Globals 45 */ 46dtrace:::BEGIN 47{ 48 UDP_in = 0; UDP_out = 0; 49 UDP_inErr = 0; UDP_outErr = 0; UDP_noPort = 0; 50 LINES = 20; line = 0; 51} 52 53/* 54 * Print Header 55 */ 56profile:::tick-1sec { line--; } 57 58profile:::tick-1sec 59/line <= 0 / 60{ 61 printf("%11s %11s %11s %11s %11s\n", 62 "UDP_out", "UDP_outErr", "UDP_in", "UDP_inErr", "UDP_noPort"); 63 64 line = LINES; 65} 66 67/* 68 * Save Data 69 */ 70mib:::udpInDatagrams { UDP_in += arg0; } 71mib:::udpOutDatagrams { UDP_out += arg0; } 72mib:::udpInErrors { UDP_inErr += arg0; } 73mib:::udpInCksumErrs { UDP_inErr += arg0; } 74mib:::udpOutErrors { UDP_outErr += arg0; } 75mib:::udpNoPorts { UDP_noPort += arg0; } 76 77/* 78 * Print Output 79 */ 80profile:::tick-1sec 81{ 82 printf("%11d %11d %11d %11d %11d\n", 83 UDP_out, UDP_outErr, UDP_in, UDP_inErr, UDP_noPort); 84 85 /* clear values */ 86 UDP_out = 0; 87 UDP_outErr = 0; 88 UDP_in = 0; 89 UDP_inErr = 0; 90 UDP_noPort = 0; 91} 92