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<?xml version="1.0" standalone='no'?>
<!DOCTYPE manpage SYSTEM "xmltoman.dtd">
<?xml-stylesheet type="text/xsl" href="xmltoman.xsl" ?>
<!-- $Id: ifplugd.8.xml.in 119 2005-03-30 16:14:39Z lennart $ -->
<!--
This file is part of ifplugd.
ifplugd is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.
ifplugd is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with ifplugd; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-->
<manpage name="ifplugd" section="8" desc="A link detection daemon for ethernet devices">
<synopsis>
<cmd>ifplugd [<arg>options</arg>]</cmd>
</synopsis>
<description>
<p>ifplugd is a daemon which will automatically configure your
ethernet device when a cable is plugged in and automatically
unconfigure it if the cable is pulled. This is useful on
laptops with on-board network adapters, since it will only
configure the interface when a cable is really connected.</p>
<p>It uses your distribution's native ifup/ifdown programs, but
can be configured to do anything you wish when the state of
the interface changes. It may ignore short unplugged whiles
(<opt>-d</opt> option) or plugged whiles (<opt>-u</opt> option).</p>
<p>ifplugd may be used in "compatibility mode" by specifying -F
on the command line. Than ifplugd will treat network drivers
which do not support link beat querying as always online.</p>
</description>
<options>
<option>
<p><opt>-a | --no-auto</opt></p>
<optdesc><p>
Do not enable interface automatically (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-n | --no-daemon</opt></p>
<optdesc><p>
Do not daemonize (for debugging) (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-s | --no-syslog</opt></p>
<optdesc><p>
Do not use syslog, use stdout instead (for debugging) (default: off).
</p></optdesc>
</option>
<option>
<p><opt>-b | --no-beep</opt></p>
<optdesc><p>
Do not beep (off)
</p></optdesc>
</option>
<option>
<p><opt>-f | --ignore-fail</opt></p>
<optdesc><p>
Ignore detection failure, retry instead. Failure is treated as "no link". (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-F | --ignore-fail-positive</opt></p>
<optdesc><p>
Ignore detection failure, retry instead. Failure is treated as "link detected". (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-i | --iface=</opt> <arg>IFACE</arg></p>
<optdesc><p>
Specify ethernet interface (default: eth0)
</p></optdesc>
</option>
<option>
<p><opt>-r | --run=</opt> <arg>EXEC</arg></p>
<optdesc><p>
Specify program to execute when link status changes (default: <file>@sysconfdir@/ifplugd/ifplugd.action</file>)
</p></optdesc>
</option>
<option>
<p><opt>-I | --ignore-retval</opt></p>
<optdesc><p>
Don't exit on nonzero return value of program executed on link change. (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-t | --poll-time=</opt> <arg>SECS</arg></p>
<optdesc><p>
Specify poll time in seconds (default: 1)
</p></optdesc>
</option>
<option>
<p><opt>-u | --delay-up=</opt> <arg>SECS</arg></p>
<optdesc><p>
Specify delay for configuring interface (default: 0)
</p></optdesc>
</option>
<option>
<p><opt>-d | --delay-down=</opt> <arg>SECS</arg></p>
<optdesc><p>
Specify delay for deconfiguring interface (default: 5)
</p></optdesc>
</option>
<option>
<p><opt>-m | --api-mode=</opt> <arg>MODE</arg></p> <optdesc><p>
Force a specific link beat detection ioctl() API. Possible
values are auto, iff, wlan, ethtool, mii, and priv for automatic
detection, interface flag (IFF_RUNNING), wireless extension, SIOCETHTOOL, SIOCGMIIREG
resp. SIOCPRIV. Only the first character of the argument is
relevant, case insensitive. (default: auto) </p></optdesc>
</option>
<option>
<p><opt>-p | --no-startup</opt></p>
<optdesc><p>
Don't call the script to bring up network on deamon start (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-q | --no-shutdown</opt></p>
<optdesc><p>
Don't call the script for network shutdown on deamon quit (default: off)
</p></optdesc>
</option>
<option>
<p><opt>-w | --wait-on-fork</opt></p>
<optdesc><p> When daemonizing, wait until the background
process finished with the initial link beat detection. When
this is enabled, the parent process will return the link
status on exit. 1 means link beat detected, 2 stands for link
beat not detected, everything else is an error.
</p></optdesc>
</option>
<option>
<p><opt>-W | --wait-on-kill</opt></p>
<optdesc><p> When killing a running daemon (with -k) wait
until the daemon died.
</p></optdesc>
</option>
<option>
<p><opt>-x | --extra-arg=</opt> <arg>ARG</arg></p>
<optdesc><p>
Specify an extra argument to be passed to the action script.
</p></optdesc>
</option>
<option>
<p><opt>-M | --monitor</opt></p>
<optdesc><p>
Don't fail when the network interface is not available, instead use NETLINK to monitor device availability. The is useful for PCMCIA devices and similar.
</p></optdesc>
</option>
<option>
<p><opt>-h | --help</opt></p>
<optdesc><p>
Show help
</p></optdesc>
</option>
<option>
<p><opt>-k | --kill</opt></p>
<optdesc><p>
Kill a running daemon (Specify -i to select the daemon instance to kill)
</p></optdesc>
</option>
<option>
<p><opt>-c | --check-running</opt></p>
<optdesc><p>
Check if a daemon is running for a given network interface. Sets the return value to 0 if a daemon is already running or to 255 if not.
</p></optdesc>
</option>
<option>
<p><opt>-v | --version</opt></p>
<optdesc><p>
Show version
</p></optdesc>
</option>
<option>
<p><opt>-S | --suspend</opt></p> <optdesc><p> Suspend a running
daemon. The daemon will no longer check the link status until
it is resumed (-R) again. (Specify -i to select the daemon instance
to suspend.) </p></optdesc>
</option>
<option>
<p><opt>-R | --resume</opt></p> <optdesc><p> Resume a suspended
daemon. (Specify -i to select the daemon instance
to resume.) </p></optdesc>
</option>
<option>
<p><opt>-z | --info</opt></p> <optdesc><p>Request that a
running daemon shall write its status information to
syslog. (Specify -i to select the daemon instance to send the
request to.) </p></optdesc>
</option>
</options>
<section name="Files">
<p><file>@sysconfdir@/default/ifplugd.conf</file>: this file is sourced
by the init script <file>@sysconfdir@/init.d/ifplugd</file> and
contains the interface to be monitored and the options to be
used.</p>
<p><file>@sysconfdir@/ifplugd/ifplugd.action</file>: this is the script
which will be called by the daemon whenever the state of the
interface changes. It takes two arguments: the first is the interface
name (eg. eth0), the second either "up" or "down". </p>
<p><file>/var/run/ifplugd.<iface>.pid</file>: the pid file
for ifplugd.</p>
</section>
<section name="Environment">
<p>The action script will be called with two environment variables set:</p>
<p><arg>IFPLUGD_PREVIOUS</arg> The previous link status. Either
"up", "down", "error" or "disabled". The former values should be
obvious, the latter is set on daemon startup.</p>
<p><arg>IFPLUGD_CURRENT</arg> The current link status. See above
for possible values.</p>
</section>
<section name="Signals">
<p><arg>SIGINT, SIGTERM</arg> ifplugd will quit, possibly running the shutdown script. This is issued by passing -k to ifplugd.</p>
<p><arg>SIGQUIT</arg> ifplugd will quit, the shutdown script is never run.</p>
<p><arg>SIGHUP</arg> ifplugd will write its status information to syslog. This is issued by -z.</p>
<p><arg>SIGUSR1</arg> ifplugd will go to suspend mode. (-S)</p>
<p><arg>SIGUSR2</arg> ifplugd will resume from suspend mode. (-R)</p>
</section>
<section name="Author">
<p>ifplugd was written by Lennart Poettering
<@PACKAGE_BUGREPORT@>. ifplugd is available
at <url
href="@PACKAGE_URL@"/>
</p>
</section>
<section name="See also">
<p>
<manref name="ifplugd.conf" section="5"/>, <manref name="ifup" section="8"/>, <manref name="interfaces"
section="5"/>, <manref name="ifconfig" section="8"/>, <manref name="ifplugstatus" section="8"/>
</p>
</section>
<section name="Comments">
<p>This man page was written using <manref name="xmltoman" section="1"
href="http://masqmail.cx/xml2man/"/> by Oliver Kurth.</p>
</section>
</manpage>
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