Date: Sat, 7 Mar 2015 18:17:16 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r279727 - head/share/dtrace Message-ID: <201503071817.t27IHGgE082985@svn.freebsd.org>
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Author: gnn Date: Sat Mar 7 18:17:15 2015 New Revision: 279727 URL: https://svnweb.freebsd.org/changeset/base/279727 Log: Add a TCP state tracking script based on FreeBSD TCP SDTs Added: head/share/dtrace/tcpstate (contents, props changed) Modified: head/share/dtrace/Makefile Modified: head/share/dtrace/Makefile ============================================================================== --- head/share/dtrace/Makefile Sat Mar 7 17:18:06 2015 (r279726) +++ head/share/dtrace/Makefile Sat Mar 7 18:17:15 2015 (r279727) @@ -15,7 +15,8 @@ _toolkit= toolkit SCRIPTS= disklatency \ disklatencycmd \ hotopen \ - nfsclienttime + nfsclienttime \ + tcpstate SCRIPTSDIR= ${SHAREDIR}/dtrace Added: head/share/dtrace/tcpstate ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/share/dtrace/tcpstate Sat Mar 7 18:17:15 2015 (r279727) @@ -0,0 +1,46 @@ +#!/usr/sbin/dtrace -s +/* + * Copyright (c) 2015 George V. Neville-Neil + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + * + * The tcpstate D script shows TCP sockets transitioning between states. + * + * Usage: tcpstate + */ + +#pragma D option quiet +BEGIN +{ + printf("Old State\t\tNew State\n"); +} + +tcp:kernel::state-change +{ + newstate = args[3]->tcps_state; + oldstate = args[5]->tcps_state; + printf("%s\t\t%s\n", tcp_state_string[oldstate], + tcp_state_string[newstate]); +}
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