change udhcpc support to busybox udhcpc
This updates the udhcpc support to use busybox's udhcpc instead of the stand alone version. I would like to thank jackieku <kjackie@gmail.com> for assisting with this update. X-Gentoo-Bug: 205286 X-Gentoo-Bug-URL: http://bugs.gentoo.org/show_bug.cgi?id=205286
This commit is contained in:
William Hubbs
parent
8202e7dce4
commit
b712a9161f
@ -414,7 +414,7 @@
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# dhclient: emerge net-misc/dhcp
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# dhcpcd: emerge net-misc/dhcpcd
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# pump: emerge net-misc/pump
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# udhcpc: emerge net-misc/udhcp
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# udhcpc: emerge sys-apps/busybox
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# If you have more than one DHCP client installed, you need to specify which
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# one to use - otherwise we default to dhcpcd if available.
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@ -3,14 +3,13 @@
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udhcpc_depend()
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{
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program start /sbin/udhcpc
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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="$_config_vars dhcp udhcpc"
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# WARNING:- The relies heavily on Gentoo patches and scripts for udhcpc
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udhcpc_start()
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{
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local args= opt= opts= pidfile="/var/run/udhcpc-${IFACE}.pid"
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@ -22,17 +21,22 @@ udhcpc_start()
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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) args="${args} --env PEER_DNS=no";;
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nontp) args="${args} --env PEER_NTP=no";;
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nogateway) args="${args} --env PEER_ROUTERS=no";;
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nodns) echo "PEER_DNS=no" >>"$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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[ "${metric:-0}" != "0" ] && args="${args} --env IF_METRIC=${metric}"
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[ "${metric:-0}" != "0" ] && echo "IF_METRIC=${metric}" >>"$conf"
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ebegin "Running udhcpc"
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@ -51,9 +55,9 @@ udhcpc_start()
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fi
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case " ${args} " in
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*" --quit "*|*" -q "*) x="/sbin/udhcpc";;
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*) x="start-stop-daemon --start --exec /sbin/udhcpc \
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--pidfile \"${pidfile}\" --";;
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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 " ${args} " in
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@ -68,11 +72,8 @@ udhcpc_start()
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;;
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esac
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local script="${RC_LIBEXECDIR}"/sh/udhcpc.h
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[ -x "${script}" ] || script=/lib/rcscripts/sh/udhcpc.sh
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eval "${x}" "${args}" --interface="${IFACE}" --now \
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--script="${script}" \
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--script="${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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@ -92,14 +93,18 @@ udhcpc_stop()
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ebegin "Stopping udhcpc on ${IFACE}"
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case " ${opts} " in
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*" release "*)
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start-stop-daemon --stop --quiet --oknodo --signal USR2 \
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--exec /sbin/udhcpc --pidfile "${pidfile}"
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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-"${IFACE}".lease
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fi
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;;
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esac
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start-stop-daemon --stop --exec /sbin/udhcpc --pidfile "${pidfile}"
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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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1
sh/.gitignore
vendored
1
sh/.gitignore
vendored
@ -7,3 +7,4 @@ init.sh
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init-early.sh
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ifwatchd-carrier.sh
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ifwatchd-nocarrier.sh
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udhcpc-hook.sh
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@ -1,5 +1,5 @@
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SRCS+= init.sh.in init-early.sh.in
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BIN+= init-early.sh
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SRCS+= init.sh.in init-early.sh.in udhcpc-hook.sh.in
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BIN+= init-early.sh udhcpc-hook.sh
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.SUFFIXES: .sh.Linux.in
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.sh.Linux.in.sh:
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117
sh/udhcpc-hook.sh.in
Normal file
117
sh/udhcpc-hook.sh.in
Normal file
@ -0,0 +1,117 @@
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#!@SHELL@
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# busybox udhcp setup script
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PATH=/bin:/usr/bin:/sbin:/usr/sbin
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peer_var()
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{
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[ -n "$1" ] && [ "$1" != "yes" ]
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}
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update_dns()
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{
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peer_var "${PEER_DNS}" && return
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[ -z "${domain}" ] && [ -z "${dns}" ] && return
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conf="# Generated by udhcpc for ${interface}\n"
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[ -n "${domain}" ] && conf="${conf}search ${domain}\n"
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for i in ${dns} ; do
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conf="${conf}nameserver ${i}\n"
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done
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if [ -x /sbin/resolvconf ] ; then
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printf "${conf}" | resolvconf -a ${interface}
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else
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printf "${conf}" > /etc/resolv.conf
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chmod 644 /etc/resolv.conf
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fi
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}
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update_ntp()
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{
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peer_var "${PEER_NTP}" && return
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[ -z "${ntpsrv}" ] && return
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conf="# Generated by udhcpc for interface ${interface}\n"
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conf="${conf}restrict default noquery notrust nomodify\n"
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conf="${conf}restrict 127.0.0.1\n"
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for i in ${ntpsrv} ; do
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conf="${conf}restrict ${i} nomodify notrap noquery\n"
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conf="${conf}server ${i}\n"
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done
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conf="${conf}driftfile /var/lib/ntp/ntp.drift\n"
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conf="${conf}logfile /var/log/ntp.log\n"
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printf "${conf}" > /etc/ntp.conf
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chmod 644 /etc/ntp.conf
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}
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update_hostname()
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{
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peer_var "${PEER_HOSTNAME}" && return
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[ -z "${hostname}" ] && return
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myhost="$(hostname)"
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[ -z "${myhost}" ] || [ "${myhost}" = "(none)" ] && hostname "${hostname}"
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}
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update_interface()
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{
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[ -n "${broadcast}" ] && broadcast="broadcast ${broadcast}"
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[ -n "${subnet}" ] && netmask="netmask ${subnet}"
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[ -n "${mtu}" ] && mtu="mtu ${mtu}"
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ifconfig "${interface}" ${ip} ${broadcast} ${netmask} ${mtu}
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}
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update_routes()
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{
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peer_var "${PEER_ROUTERS}" && return
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if [ -n "${router}" ] ; then
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metric=
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[ -n "${IF_METRIC}" ] && metric="metric ${IF_METRIC}"
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for i in ${router} ; do
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route add default gw "${i}" ${metric} dev "${interface}"
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done
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fi
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}
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deconfig()
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{
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ifconfig "${interface}" 0.0.0.0
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if ! peer_var "${PEER_ROUTERS}" ; then
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while route del default dev "${interface}" >& /dev/null; do
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:
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done
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fi
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if ! peer_var "${PEER_DNS}" ; then
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[ -x /sbin/resolvconf ] && resolvconf -d "${interface}"
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fi
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}
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if [ -r "/var/run/udhcpc-${interface}.conf" ]; then
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. "/var/run/udhcpc-${interface}.conf"
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fi
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case "$1" in
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bound|renew)
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update_hostname
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update_interface
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update_routes
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update_dns
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update_ntp
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;;
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deconfig|leasefail)
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deconfig
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;;
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nak)
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echo "nak: ${message}"
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;;
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*)
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echo "unknown option $1" >&2
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echo "Usage: $0 {bound|deconfig|leasefail|nak|renew}" >&2
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exit 1
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;;
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esac
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exit 0
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