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diff --git a/doc/README.html.in b/doc/README.html.in new file mode 100644 index 0000000..dd0b778 --- /dev/null +++ b/doc/README.html.in @@ -0,0 +1,272 @@ +<?xml version="1.0" encoding="iso-8895-15"?> <!-- -*-html-helper-*- --> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> + +<head> +<title>ifplugd @PACKAGE_VERSION@</title> +<link rel="stylesheet" type="text/css" href="style.css" /> +</head> + +<body> +<h1><a name="top">ifplugd @PACKAGE_VERSION@</a></h1> + +<p><i>Copyright 2002,2003 Lennart Poettering <mzvscyhtq [at] itaparica.org></i></p> + +<ul class="toc"> + <li><a href="#license">License</a></li> + <li><a href="#news">News</a></li> + <li><a href="#overview">Overview</a></li> + <li><a href="#status">Status</a></li> + <li><a href="#documentation">Documentation</a></li> + <li><a href="#requirements">Requirements</a></li> + <li><a href="#installation">Installation</a></li> + <li><a href="#acks">Acknowledgements</a></li> + <li><a href="#download">Download</a></li> +</ul> + +<h2><a name="license">License</a></h2> + +<p>This program 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.</p> + +<p>This program 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.</p> + +<p>You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.</p> + +<h2><a name="news">News</a></h2> + +<div class="news-date">Thu July 10 2003: </div> <p class="news-text"><a +href="http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/ifplugd-0.16.tar.gz">Version +0.16</a> released, changes include: RPM spec file added, build fixes</p> + +<div class="news-date">Thu July 10 2003: </div> <p class="news-text"><a +href="http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/ifplugd-0.15.tar.gz">Version +0.15</a> released, changes include: bad umask fix, documentation update</p> + +<div class="news-date">Mon July 7 2003: </div> <p class="news-text"><a +href="http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/ifplugd-0.14.tar.gz">Version +0.14</a> released, changes include: autoconf usage, new dependency <a +href="http://www.stud.uni-hamburg.de/~lennart/projects/libdaemon/"><tt>libdaemon</tt></a>, wireless LAN support, support for +suspending/resuming, many fixes</p> + +<h2><a name="overview">Overview</a></h2> + +<p><tt>ifplugd</tt> is a Linux 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 onboard network adapters, since it will only configure +the interface when a cable is really connected. + +<p><tt>ifplugd</tt> is a rather simplistic approach to this target since it relies +on your distribution's native interface configuration system.</p> + +<p>Some features:</p> + +<ul> + <li>Uses your distribution's native <tt>ifup</tt>/<tt>ifdown</tt> programs.</li> + + <li>May beep when the cable is unplugged, plugged, the interface + configuration succeeded or failed.</li> + + <li>Supports the Linux <tt>SIOCETHTOOL</tt> (newer, aka <tt>ethtool</tt> API), <tt>SIOCGMIIREG</tt> + (older, aka <tt>mii-diag</tt>/<tt>mii-tool</tt> API) and SIOCDEVPRIVATE (oldest, aka + <tt>mii-tool</tt> API) <tt>ioctl()</tt>s for getting link status.</li> + + <li>Syslog support</li> + + <li>Simplistic C source code, just 19k binary (+11k for libdaemon)</li> + + <li>Multiple ethernet interface support</li> + + <li>May ignore short unplugged whiles (<tt>-d</tt> option) or plugged whiles (<tt>-u</tt> + option)</li> + + <li>Support for wireless networking. Whenever an AP is detected the +network is configured.</li> + + <li>Compatibility mode for network devices which do not support cable detection (<tt>-F</tt> option)</li> +</ul> + +<h2><a name="status">Status</a></h2> + +<p>Version 0.14 is stable and has all the sensible features its users could think of.</p> + +<h2><a name="documentation">Documentation</a></h2> + +<h3>Configuration</h3> + +<p>Edit <tt>/etc/ifplugd/ifplugd.conf</tt> for configuration +changes. This file is a bourne shell script sourced by the init script +and used to generate a suiting command line. You may specify more than +one ethernet interface in <tt>INTERFACES</tt>. For each interface a +seperate instance of <tt>ifplugd</tt> is spawned. The arguments specified in +<tt>ARGS</tt> are append to <tt>ifplugd</tt>'s command line. Have a look on +<tt>ifplugd -h</tt> or <tt>man ifplugd</tt> for further information +about the available options.</p> + +<p>The network interface which is controlled by <tt>ifplugd</tt> +should not be configured automatically by your distribution's network +subsystem, since <tt>ifplugd</tt> will do this for you if needed. On +Debian remove interface names beginning with <tt>eth</tt> or +<tt>wlan</tt> from the <tt>auto</tt> option line in +<tt>/etc/network/interfaces</tt>.</p> + +<h3>Troubleshooting</h3> + +<p>When you are using the hotplug subsystem (Debian package +<tt>hotplug</tt>) you may notice that the network device is configured +even when it is not listed on an <tt>auto</tt> line in +<tt>/etc/network/interface</tt>. This may be due to <tt>hotplug</tt> +being configured to <tt>ifup</tt> the network interface when it +becomes available. This was the default behavior in the Debian +<tt>hotplug</tt> package prior to release <tt>0.0.20030117-1</tt>, for +example. To prevent this you should either upgrade your +<tt>hotplug</tt> package or comment out the <tt>ifup</tt> call in +<tt>/etc/hotplug/net.agent</tt>.</p> + +<p>When using <tt>ifplugd</tt> together with APM (and probably ACPI) +suspends, strange things may happen: some network devices fail to +detect the network cable for a short period of time before and after +the suspend. When using the <tt>-f</tt> switch, this will be treated +as "no link beat", thus the network is shutdown after a +timeout. During this timeout the machine changes to suspended +state. When it is resumed again, the timeout will be run out, the +network is deconfigured, however, as the next cable detection +succeeds, the network is configured again immediately. To fix this +problem, <tt>ifplugd</tt> should be disabled before the APM suspend +and enabled back after the suspend. This may be done by using +<tt>apmd</tt> and adding a script to +<tt>/etc/apm/{suspend,resume}.d</tt> which simply calls +<tt>/etc/init.d/ifplugd suspend</tt>, resp. <tt>/etc/init.d/ifplugd +resume</tt>. It might even be a good idea to shut down the network +completely during suspend, this may be achieved by calling +<tt>/etc/init.d/ifplugd stop</tt> and <tt>/etc/init.d/ifplugd +start</tt> in the appropriate places. I strongly urge the packagers of +this software for the Linux distributions to add such scripts to their +packages.</p> + +<h3>FAQ</h3> + +<ol> + <li><p><b>Q:</b> I want to use <tt>ifplugd</tt> with my PCMCIA device, but <tt>ifplugd</tt> quits + when it doesn't find <tt>eth0</tt>, when I have not inserted the + card. What can I do?</p> + + <p><b>A:</b> Use the <tt>-f</tt> switch. This is not very clean however, + since modprobe is called on each cable detection query of <tt>ifplugd</tt> to + load a module for the network device. This is suboptimal. You should + probably run <tt>ifplugd</tt> only when the card is really inserted.</p> + </li> + + <li><p><b>Q:</b> I am using the <tt>-f</tt> switch, but the kernel logs are getting filled + with messages like "<tt>modprobe: modprobe: Can't locate module + eth0</tt>". What can I do?</p> + + <p><b>A:</b> Make sure you have a line like <tt>alias eth0 off</tt> in your <tt>/etc/modules.conf</tt></p> + </li> + + <li><p><b>Q:</b> When the cable is unplugged and the interface shut down it is + still available with <tt>ifconfig</tt> and markes as UP. Why this?</p> + + <p><b>A:</b> <tt>ifplugd</tt> cannot detect the link beat with a shut down interface on + certain (most as of kernel 2.4.19) network drivers. Thus <tt>ifplugd</tt> + enables the interface before querying the link status. This may + be switched off with -a flag. You might want to use it if you + have a sane network driver (e.g. <tt>eepro100</tt>). The subdirectory + <tt>patches/</tt> in the <tt>ifplugd</tt> distribution includes a patch for the + 8139too 0.9.26 driver, which makes the driver compatible with + -a. Don't ask me how to apply this patch. If you don't know, you + won't need it.</p></li> + + <li><p><b>Q:</b> Does it work with anything else than plain ethernet or wireless LAN?</p> + + <p><b>A:</b> Certainly not, since the <tt>MII</tt> and +<tt>ETHTOOL</tt> <tt>ioctl()</tt>s and the wireless extension don't +exist on + other network device types.</p></li> + + <li><p><b>Q:</b> I have a Realtek 8139 based network card. Everytime <tt>ifplugd</tt> + starts on bootup my machine freezes. What can I do?</p> + + <p><b>A:</b> This is a bug in the <tt>8139too</tt> driver 0.9.25 (at least) shipped + with Linux 2.4.19, please upgrade to <tt>8139too</tt> 0.9.26 (Linux 2.4.20 + or seperately at <a href="http://www.sourceforge.net/projects/gkernel/">http://www.sourceforge.net/projects/gkernel/</a>).</p></li> + + + <li><p><b>Q:</b> There are already <tt>laptop-net</tt>'s <tt>ifd</tt> and <tt>miid</tt>, why did you write + your own daemon?</p> + + <p><b>A:</b> <tt>laptop-net</tt> simply sucks and I didn't know of <tt>miid</tt> when I wrote + <tt>ifplugd</tt>. However, <tt>ifplugd</tt> is far better than <tt>miid</tt>. For a + comparison of <tt>miid</tt> and <tt>ifplugd</tt>, have a look on + + <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=162763&repeatmerged=yes">http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=162763&repeatmerged=yes</a></p></li> +</ol> + + +<h2><a name="requirements">Requirements</a></h2> + +<p>A newer Linux Kernel (I think 2.2 is good enough, alltough I tested it +only with 2.4) with a compatible device driver and +ethernet card. Most modern cards and drivers are compatible, like mine +which works with the <tt>8139too</tt> driver.</p> + +<p><tt>ifplugd</tt> was developed and tested on Debian GNU/Linux +"testing" from July 2003, it should work on most other Linux +distributions (and maybe Unix versions) since it uses GNU autoconf and +GNU libtool for source code configuration and shared library +management.</p> + +<p>The machine used was a Medion 9580-F laptop with a Realtek 8139 +network card and a PRISM1 PCMCIA wireless LAN card.</p> + +<p><tt>ifplugd</tt> needs <a +href="http://www.stud.uni-hamburg.de/~lennart/projects/libdaemon/"><tt>libdaemon</tt></a>.</p> + +<h2><a name="installation">Installation</a></h2> + +<p>As this package is made with the GNU autotools you should run +<tt>./configure</tt> inside the distribution directory for configuring +the source tree. After that you should run <tt>make</tt> for +compilation and <tt>make install</tt> (as root) for installation of +<tt>ifplugd</tt>.</p> + +<p>The installation scripts create an init script in +<tt>${sysconfdir}/init.d/ifplugd</tt>, however no <tt>/etc/rc?.d/</tt> links are created +for it.</p> + +<h2><a name="acks">Acknowledgements</a></h2> + +<p>For the developers of <tt>mii-diag</tt>, <tt>ethtool</tt> and <tt>laptop-net</tt>, since I looked +on their source codes for learning how to use the link beat ioctls.</p> + +<p>Oliver Kurth for packaging <tt>ifplugd</tt> for Debian and <tt>ifplugd</tt>'s +manpage</p> + +<p>Asgeir Nilsen, Sean Reifschneider, R. Steve McKown, David Mitchell for patches</p> + +<p>Frederic Lepied for integrating <tt>ifplugd</tt> into Mandrake Linux</p> + +<h2><a name="download">Download</a></h2> + +<p>The newest release is always available from <a href="http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/">http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/</a></p> + +<p>The current release is <a href="http://www.stud.uni-hamburg.de/~lennart/projects/ifplugd/ifplugd-@PACKAGE_VERSION@.tar.gz">@PACKAGE_VERSION@</a></p> + +<p>You may find a mostly up to date Debian package of <tt>ifplugd</tt> on the <a href="http://packages.debian.org/cgi-bin/search_packages.pl?keywords=ifplugd&searchon=names&subword=1&version=all&release=all">Debian package repository</a>.</p> + +<p>Packages for Mandrake Linux may be found in the Cooker distribution; Gentoo packages are available as well</p> + +<hr/> +<address>Lennart Poettering <mzvscyhtq [at] itaparica.org>, July 2003</address> +<div><i>$Id: README.html.in 9 2003-07-05 17:59:40Z lennart $</i></div> + +</body> +</html> |