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