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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)
# void dhcpcd_depend(void)
#
# Sets up the dependancies for the module
dhcpcd_depend() {
after interface
provide dhcp
functions interface_exists interface_get_address
}
# void dhcpcd_expose(void)
#
# Expose variables that can be configured
dhcpcd_expose() {
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-2.0.0 or newer"
return 1
fi
fi
${1:-false} && eerror "For DHCP (dhcpcd) support, emerge net-misc/dhcpcd"
return 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 signal pidfile="/var/run/dhcpcd-$1.pid" d
[[ ! -f ${pidfile} ]] && return 0
ebegin "Stopping dhcpcd on ${iface}"
local ifvar="$(bash_variable "${iface}")"
d="dhcp_${ifvar}"
d=" ${!d} "
[[ ${d} == " " ]] && d=" ${dhcp} "
if [[ ${d} == *" release "* ]] ; then
/sbin/dhcpcd -k "${iface}"
else
start-stop-daemon --stop --exec /sbin/dhcpcd --pidfile "${pidfile}"
fi
eend $? "timed out"
}
# 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"
[[ ! -d "${statedir}/${iface}" ]] && mkdir -m 0755 -p "${statedir}/${iface}"
eval /sbin/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: set ft=sh ts=4 :
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