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# Copyright 2007 Roy Marples
# All rights reserved
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
udhcpc_depend() {
program start /sbin/udhcpc
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}
# Map some generic options to dhcpcd
for opt in ${opts}; do
case "${opt}" in
nodns) args="${args} --env PEER_DNS=no";;
nontp) args="${args} --env PEER_NTP=no";;
nogateway) args="${args} --env PEER_ROUTERS=no";;
nosendhost) sendhost=false;
esac
done
[ "${metric:-0}" != "0" ] && args="${args} --env IF_METRIC=${metric}"
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 " ${args} " in
*" --quit "*|*" -q "*) x="/sbin/udhcpc";;
*) x="start-stop-daemon --start --exec /sbin/udhcpc \
--pidfile \"${pidfile}\" --";;
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
local script="${RC_LIBDIR}"/sh/udhcpc.sh
[ -x "${script}" ] || script=/lib/rcscripts/sh/udhcpc.sh
eval "${x}" "${args}" --interface="${IFACE}" --now \
--script="${script}" \
--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 " ${opts} " in
*" release "*)
start-stop-daemon --stop --quiet --oknodo --signal USR2 \
--exec /sbin/udhcpc --pidfile "${pidfile}"
if [ -f /var/cache/udhcpc-"${IFACE}".lease ]; then
rm -f /var/cache/udhcpc-"${IFACE}".lease
fi
;;
esac
start-stop-daemon --stop --exec /sbin/udhcpc --pidfile "${pidfile}"
eend $?
}
# vim: set ts=4 :
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