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# Copyright (c) 2004-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Contributed by Roy Marples (uberlord@gentoo.org)
# Fix any potential localisation problems
# Note that LC_ALL trumps LC_anything_else according to locale(7)
dhclient() {
LC_ALL=C /sbin/dhclient "$@"
}
# void dhclient_depend(void)
#
# Sets up the dependancies for the module
dhclient_depend() {
after interface
provide dhcp
functions interface_exists interface_get_address
}
# void dhclient_expose(void)
#
# Expose variables that can be configured
dhclient_expose() {
variables dhclient dhcp
}
# bool dhclient_check_installed(void)
#
# Returns 1 if dhclient is installed, otherwise 0
dhclient_check_installed() {
[[ -x /sbin/dhclient ]] && return 0
${1:-false} && eerror "For DHCP (dhclient) support, emerge net-misc/dhcp"
return 1
}
# bool dhclient_stop(char *iface)
#
# Stop dhclient on an interface
# Always returns 0
dhclient_stop() {
local iface="$1" pidfile="/var/run/dhclient-$1.pid"
[[ ! -f ${pidfile} ]] && return 0
ebegin "Stopping dhclient on ${iface}"
local ifvar="$(bash_variable "${iface}")"
local d="dhcp_${ifvar}"
[[ -z ${!d} ]] && d="dhcp"
if [[ " ${!d} " == *" release "* ]] ; then
dhclient -q -r -pf "${pidfile}" "${iface}"
else
start-stop-daemon --stop --exec /sbin/dhclient --pidfile "${pidfile}"
fi
eend $?
}
# bool dhclient_start(char *iface)
#
# Start DHCP on an interface by calling dhclient $iface $options
#
# Returns 0 (true) when a DHCP address is obtained, otherwise 1
dhclient_start() {
local iface="$1" ifvar="$(bash_variable "$1")" dhconf=
local pidfile="/var/run/dhclient-${iface}.pid"
interface_exists "${iface}" true || return 1
# Load our default options
opts="dhclient_${ifvar}"
opts="${!opts}"
local d="dhcp_${ifvar}"
[[ -z ${!d} ]] && d="dhcp"
# Add our peer and metric options
if [[ " ${!d} " == *" nogateway "* ]] ; then
opts="${opts} -e PEER_ROUTERS=no"
elif [[ " ${opts} " != *" -e PEER_ROUTERS="* ]] ; then
opts="${opts} -e PEER_ROUTERS=yes"
fi
if [[ " ${!d} " == *" nodns "* ]] ; then
opts="${opts} -e PEER_DNS=no"
elif [[ " ${opts} " != *" -e PEER_DNS="* ]] ; then
opts="${opts} -e PEER_DNS=yes"
fi
if [[ " ${!d} " == *" nontp "* ]] ; then
opts="${opts} -e PEER_NTP=no"
elif [[ " ${opts} " != *" -e PEER_NTP="* ]] ; then
opts="${opts} -e PEER_NTP=yes"
fi
local metric="metric_${ifvar}"
if [[ -n ${!metric} && ${!metric} != "0" ]] ; then
opts="${opts} -e IF_METRIC=${!metric}"
fi
# Send our hostname by editing cffile
if [[ " ${!d} " != *" nosendhost "* ]] ; then
local hname="$(hostname)"
if [[ ${hname} != "(none)" && ${hname} != "localhost" ]]; then
dhconf="${dhconf} interface \"${iface}\" {\n"
dhconf="${dhconf} send host-name \"${hname}\"\n;"
dhconf="${dhconf}}"
fi
fi
echo "${dhconf}" > /tmp/dhconf-${iface}
# Bring up DHCP for this interface (or alias)
ebegin "Running dhclient"
echo -e "${dhconf}" | start-stop-daemon --start --exec /sbin/dhclient \
--pidfile "${pidfile}" -- ${opts} -q -1 -pf "${pidfile}"
eend $? || return 1
# DHCP succeeded, show address retrieved
local addr="$(interface_get_address "${iface}")"
einfo "${iface} received address ${addr}"
return 0
}
# vim: set ts=4 :
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