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,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 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 */ 47 dtrace:::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 */ 57 profile:::tick-1sec { line--; } 58 59 profile:::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 */ 71 mib:::udp*InDatagrams { UDP_in += arg0; } 72 mib:::udp*OutDatagrams { UDP_out += arg0; } 73 mib:::udpInErrors { UDP_inErr += arg0; } 74 mib:::udpInCksumErrs { UDP_inErr += arg0; } 75 mib:::udpOutErrors { UDP_outErr += arg0; } 76 mib:::udpNoPorts { UDP_noPort += arg0; } 77 78 /* 79 * Print Output 80 */ 81 profile:::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