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# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
udhcpc_depend()
{
program start /bin/busybox
after interface
provide dhcp
}
_config_vars="$_config_vars dhcp udhcpc"
udhcpc_start()
{
local args= opt= opts= pidfile="/var/run/udhcpc-${IFACE}.pid"
local sendhost=true cachefile="/var/cache/udhcpc-${IFACE}.lease"
eval args=\$udhcpc_${IFVAR}
# Get our options
eval opts=\$dhcp_${IFVAR}
[ -z "${opts}" ] && opts=${dhcp}
# This omits the Gentoo specific patch to busybox,
# but it creates temporary files.
# We can move this stuff to udhcpc hook script to avoid that, should we do?
local conf="/var/run/udhcpc-${IFACE}.conf"
echo -n >"$conf"
# Map some generic options to dhcpcd
for opt in ${opts}; do
case "${opt}" in
nodns) echo "PEER_DNS=no" >>"$conf" ;;
nontp) echo "PEER_NTP=no" >>"$conf" ;;
nogateway) echo "PEER_ROUTERS=no" >>"$conf" ;;
nosendhost) sendhost=false;
esac
done
[ "${metric:-0}" != "0" ] && echo "IF_METRIC=${metric}" >>"$conf"
ebegin "Running udhcpc"
# Try and load the cache if it exists
if [ -f "${cachefile}" ]; then
case "$ {args} " in
*" --request="*|*" -r "*);;
*)
local x=$(cat "${cachefile}")
# Check for a valid ip
case "${x}" in
*.*.*.*) args="${args} --request=${x}";;
esac
;;
esac
fi
case " ${args} " in
*" --quit "*|*" -q "*) x="/bin/busybox udhcpc";;
*) x="start-stop-daemon --start --exec /bin/busybox \
--pidfile \"${pidfile}\" -- udhcpc";;
esac
case " ${args} " in
*" --hosname="*|*" -h "*|*" -H "*);;
*)
if ${sendhost}; then
local hname="$(hostname)"
if [ "${hname}" != "(none)" ] && [ "${hname}" != "localhost" ]; then
args="${args} --hostname='${hname}'"
fi
fi
;;
esac
eval "${x}" "${args}" --interface="${IFACE}" --now \
--script="${RC_LIBEXECDIR}/sh/udhcpc-hook.sh" \
--pidfile="${pidfile}" >/dev/null
eend $? || return 1
_show_address
return 0
}
udhcpc_stop()
{
local pidfile="/var/run/udhcpc-${IFACE}.pid" opts=
[ ! -f "${pidfile}" ] && return 0
# Get our options
eval opts=\$dhcp_${IFVAR}
[ -z "${opts}" ] && opts=${dhcp}
ebegin "Stopping udhcpc on ${IFACE}"
case " ${opts} " in
*" release "*)
start-stop-daemon --stop --quiet --signal USR2 \
--exec /bin/busybox --pidfile "${pidfile}"
if [ -f /var/cache/udhcpc-"${IFACE}".lease ]; then
rm -f /var/cache/udhcpc-"${IFACE}".lease
fi
;;
esac
start-stop-daemon --stop --exec /bin/busybox --pidfile "${pidfile}"
eend $?
if [ -e "/var/run/udhcpc-${IFACE}.conf" ]; then
rm -f "/var/run/udhcpc-${IFACE}.conf"
fi
}
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