lfs/bootscripts/lfs/sbin/ifdown
Bruce Dubbs f874424cab Rename /etc/sysconfig/init_params to /etc/sysconfig/rc.site.
Move network services to /lib/services.
Move init-functions to /lib/lsb.
Make /lib/lsb a symlink to /lib/services.
Create convenience symlink /etc/init.d->/etc/rc.d/init.d
Add help and man pages to ifup/ifdown.

Append /run/var/bootlog to /var/log/boot.log at the end of
the boot sequence.

Add capability to step through the boot scripts at boot time.

Optionally allow environment variables in sysconfig directory's
console, network, and clock files to be placed in rc.site.

Add an optional FASTBOOT parameter to set /fastboot when rebooting.

Remove a minor warning message from udev that is triggered
by the udev_retry boot script.

Add SKIPTMPCLEAN as an optional parameter to skip cleaning /tmp at boot time.

Add a page to Chapter 7 documenting rc.site. 



git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9597 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
2011-09-19 03:31:46 +00:00

99 lines
2.6 KiB
Bash
Executable File

#!/bin/bash
########################################################################
# Begin /sbin/ifdown
#
# Description : Interface Down
#
# Authors : Nathan Coulson - nathan@linuxfromscratch.org
# Kevin P. Fleming - kpfleming@linuxfromscratch.org
# Update : Bruce Dubbs - bdubbs@linuxfromscratch.org
#
# Version : LFS 7.0
#
# Notes : the IFCONFIG variable is passed to the scripts found
# in the /lib/services directory, to indicate what file the
# service should source to get interface specifications.
#
########################################################################
RELEASE="7.0"
USAGE="Usage: $0 [ -hV ] [--help] [--version] interface"
VERSTR="LFS ifdown, version ${RELEASE}"
while [ $# -gt 0 ]; do
case "$1" in
--help | -h) help="y"; break ;;
--version | -V) echo "${VERSTR}"; exit 0 ;;
-*) echo "ifup: ${1}: invalid option" >&2
echo "${USAGE}" >& 2
exit 2 ;;
*) break ;;
esac
done
if [ -n "$help" ]; then
echo "${VERSTR}"
echo "${USAGE}"
echo
cat << HERE_EOF
ifdown is used to bring down a network interface. The interface
parameter, e.g. eth0 or eth0:2, must match the trailing part of the
interface specifications file, e.g. /etc/sysconfig/ifconfig.eth0:2.
HERE_EOF
exit 0
fi
file=/etc/sysconfig/ifconfig.${1}
# Skip backup files
[ "${file}" = "${file%""~""}" ] || exit 0
. /lib/lsb/init-functions
if [ ! -r "${file}" ]; then
log_warning_msg "${file} is missing or cannot be accessed."
exit 1
fi
. ${file}
if [ "$IFACE" = "" ]; then
log_failure_msg "${file} does not define an interface [IFACE]."
exit 1
fi
# This will run the service script, if SERVICE is set
if [ -n "${SERVICE}" -a -x "/lib/services/${SERVICE}" ]; then
if ip link show ${IFACE} > /dev/null 2>&1; then
IFCONFIG=${file} /lib/services/${SERVICE} ${IFACE} down
else
log_warning_msg "Interface ${1} doesn't exist."
echo_warning
fi
else
MSG="Unable to process ${file}. Either "
MSG="${MSG}the SERVICE variable was not set"
MSG="${MSG}or the specified service cannot be executed."
log_failure_msg "$MSG"
exit 1
fi
link_status=`ip link show ${IFACE} 2>/dev/null`
if [ -n "${link_status}" ]; then
if [ "$(echo "${link_status}" | grep UP)" != "" ]; then
if [ "$(ip addr show ${IFACE} | grep 'inet ')" != "" ]; then
log_info_msg "Bringing down the ${IFACE} interface..."
ip link set ${IFACE} down
evaluate_retval
fi
fi
fi
# End /sbin/ifdown