Netplug

Download Source:
http://www.red-bean.com/~bos/netplug/netplug-1.2.9.tar.bz2
Download Patches:
http://svn.cross-lfs.org/svn/repos/patches/netplug/netplug-1.2.9-gcc4-1.patch
http://svn.cross-lfs.org/svn/repos/patches/netplug-1.2.9/netplug-1.2.9-ignore-wireless-1.patch
http://svn.cross-lfs.org/svn/repos/patches/netplug-1.2.9/netplug-1.2.9-remove-nest-1.patch

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Introduction to Netplug

Netplug is a Linux daemon that brings up/down network interfaces in response to network cables being plugged in and out. This application is mostly useful for a laptop or computer (used for lan parties?) that is often relocated to different LANs.

The netplugd rc script shared below replaces the clfs-bootscripts network script. If you remove the network script and symlinks in the rc#.d directories, and later decide you want them, then merely reinstall from the clfs-bootscripts.

Dependencies

Required

• Dhcpcd
• or other dhcp client

Configuration Information

This package does not use a configure script. Any additional configuration must be made within the Makefile.

Non-Multilib

Much of this, including the patches were ripped from the Gentoo ebuild. These instructions did successfully install the application onto a pentium-m based x86 laptop.

Modify the Makefile:

remove=" -ggdb3 "
[[ " ${CFLAGS} " == *" -O"[0-9]" "* ]] && remove="${remove}-O3 "
sed -i -e "s/${remove}/ /" Makefile
sed -i '/bk_root/,$d' Makefile

Apply patches:

patch -Np0 -i ../netplug-1.2.9-gcc4-1.patch
patch -Np1 -i ../netplug-1.2.9-remove-nest-1.patch
patch -Np1 -i ../netplug-1.2.9-ignore-wireless-1.patch

Compile and install the package:

make
make install

Command Explanations

remove...

[[ "$C...

sed -i...: These commands remove -O3 (if you are using another optimization) and debugging from the Makefile. sed -i '/bk_root/,$d' Makefile: This removes the bitkeeper stuff, you might omit this if you are using it. Multilib AFAICT this package does not provide any libraries so only one installation is needed. 32Bit Must be tested and any instructions should be included by others N32 Must be tested and any instructions should be included by others 64Bit Must be tested and any instructions should be included by others Configuring Create the netplugd script: cat > /etc/rc.d/init.d/netplugd << "EOF #!/bin/sh ######################################################################## # Begin $rc_base/init.d/netplugd # # Description : Netplugd-1.2.9 # # Authors : Harvey Muller # # Version : 00.02 # # Notes : Still beta # ######################################################################## . /etc/sysconfig/rc . ${rc_functions} if [ ! -x /sbin/netplugd ]; then echo "/sbin/netplugd missing, or needs to be installed ..." exit 1 fi # Use netplugd if present, it supplies NETPLUGDARGS if needed. if [ -f /etc/sysconfig/netplugd ]; then . /etc/sysconfig/netplugd fi if [ `id -u` != "0" ] && [ "$1" = "start" -o "$1" = "stop" ] ; then echo "You must be root to start, stop or restart netplugd." exit 1 fi case "${1}" in start) boot_mesg "Starting network plug daemon..." loadproc /sbin/netplugd ${NETPLUGDARGS} -p /var/run/netplugd.pid RETVAL=$? echo [ $RETVAL -eq 0 ] && touch /var/lock/subsys/netplugd ;; stop) boot_mesg "Stopping network plug daemon..." killproc netplugd RETVAL=$? echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/netplugd ;; restart|reload) ${0} stop ${0} start ;; status) statusproc netplugd RETVAL=$? ;; condrestart) [ -f /var/lock/subsys/netplugd ] && restart || : ;; *) echo "Usage: ${0} {start|stop|reload|restart|status|condrestart}" exit 1 ;; esac exit $RETVAL # End $rc_base/init.d/netplugd EOF Create symlinks to netplugd script: ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc0.d/K80netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc1.d/K80netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc2.d/S21netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc3.d/S21netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc4.d/S21netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc5.d/S21netplugd ln -sf /etc/rc.d/init.d/netplugd /etc/rc.d/rc6.d/K80netplugd If you have configured your wired interface through udev (or other means) to be named eth0, and you only have one wired interface, then we may as well configure netplug to use it only: sed -i 's/eth\*/eth0/' /etc/netplug/netplugd.conf Netplug requires the /var/lock/subsys directory be present: [ -d /var/lock/subsys ] || install -d -m755 /var/lock/subsys Make links in /sbin for ifup and ifdown: ln -sf /etc/sysconfig/network-devices/ifup /sbin/ifup ln -sf /etc/sysconfig/network-devices/ifdown /sbin/ifdown And finally modify ifconfig.etho/dhcpcd changing ONBOOT=yes to ONBOOT=no, using your favorite editor, or use the following sed script: sed -i -e '/ONBOOT/s/yes/no/' /etc/sysconfig/network-devices/ifconfig.eth0/dhcpcd Contents Installed Programs: /sbin/netplugd Installed Libraries: none Installed Directories: /etc/netplug, /etc/netplug.d, /var/lock/subsys Installed Scripts: /etc/netplug.d/netplug, /etc/rc.d/init.d/netplugd Installed Documentation: /usr/share/man/man8/netplugd.8 Short Descriptions netplugd: a daemon which automatically brings your network interface up/down based on cable insertion/removal.