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#!/bin/bash
# Copyright (c) 2004-2005 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)
dhcpcd() {
LC_ALL=C /sbin/dhcpcd "$@"
}
# void dhcpcd_depend(void)
#
# Sets up the dependancies for the module
dhcpcd_depend() {
after interface
provide dhcp
functions interface_exists interface_get_address
variables dhcpcd dhcp
}
# bool dhcpcd_check_installed(void)
#
# Returns 1 if dhcpcd is installed, otherwise 0
dhcpcd_check_installed() {
if [[ -x /sbin/dhcpcd ]]; then
if dhcpcd -h 2>&1 | grep -q "etcDir" ; then
return 0
else
${1:-false} && eerror "We require dhcpcd-1.3.22_p4-r12 or newer"
return 1
fi
fi
${1:-false} && eerror "For DHCP (dhcpcd) support, emerge net-misc/dhcpcd"
return 1
}
# char* dhcpcd_get_vars(char *interface)
#
# Returns a string spaced with possible user set
# configuration variables
dhcpcd_get_vars() {
echo "dhcpcd_$1 dhcp_$1"
}
# bool dhcpcd_stop(char *iface)
#
# Stop DHCP on an interface by calling dhcpcd -z $iface
#
# Returns 0 (true) when a DHCP address dropped
# otherwise return 1
dhcpcd_stop() {
local iface=$1 count signal pidfile="/var/run/dhcpcd-$1.pid" d
[[ ! -f ${pidfile} ]] && return 0
ebegin "Stopping dhcpcd on ${iface}"
local pid=$( < "${pidfile}" )
local ifvar=$( bash_variable "${iface}" )
d="dhcp_${ifvar}"
d=" ${!d} "
[[ ${d} == " " ]] && d=" ${dhcp} "
if [[ ${d} == *" release "* ]]; then
signal="HUP"
else
signal="TERM"
fi
kill -s "${signal}" "${pid}" &>/dev/null
process_finished "${pid}" dhcpcd
eend $? "timed out"
return $?
}
# bool dhcpcd_start(char *iface)
#
# Start DHCP on an interface by calling dhcpcd $iface $options
#
# Returns 0 (true) when a DHCP address is obtained, otherwise 1
dhcpcd_start() {
local iface="$1" opts pidfile="/var/run/dhcpcd-$1.pid"
local ifvar=$( bash_variable "${iface}" ) metric d
interface_exists "${iface}" true || return 1
# Get our options
opts="dhcpcd_${ifvar}"
opts="${!opts}"
# Map some generic options to dhcpcd
d="dhcp_${ifvar}"
d=" ${!d} "
[[ ${d} == " " ]] && d=" ${dhcp} "
[[ ${d} == *" nodns "* ]] && opts="${opts} -R"
[[ ${d} == *" nontp "* ]] && opts="${opts} -N"
[[ ${d} == *" nonis "* ]] && opts="${opts} -Y"
[[ ${d} == *" nogateway "* ]] && opts="${opts} -G"
# We transmit the hostname by default:q
if [[ " ${d} " != *" nosendhost "* && " ${opts} " != *" -h "* ]]; then
local hname=$( hostname )
[[ -n ${hname} && ${hname} != "(none)" && ${hname} != "localhost" ]] \
&& opts="-h \"${hname}\" ${opts}"
fi
# Stop dhcpcd from bringing the interface down when we exit
opts="${opts} -o"
# Add our route metric
metric="metric_${ifvar}"
[[ -n ${!metric} && ${!metric} != "0" ]] && opts="${opts} -m ${!metric}"
# Instruct dhcpcd to use our wrapper
opts="${opts} -c \"${svclib}/net.modules.d/helpers.d/dhcpcd-wrapper\""
# Instruct dhcpcd to create it's files in our state dir
opts="${opts} -e \"${statedir}/${iface}\""
# Bring up DHCP for this interface (or alias)
ebegin "Running dhcpcd"
# Halt any existing dhcpcd process
dhcpcd_stop "${iface}"
[[ ! -d "${statedir}/${iface}" ]] && mkdir -m 0755 -p "${statedir}/${iface}"
if [[ ${background} == "yes" ]]; then
eval dhcpcd "${opts}" "${iface}" &
eend 0
go_background
fi
eval dhcpcd "${opts}" "${iface}"
eend $? || return 1
# DHCP succeeded, show address retrieved
local addr=$( interface_get_address "${iface}" )
einfo "${iface} received address ${addr}"
return 0
}
# vim:ts=4
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