#!@SHELL@ # busybox udhcp setup script PATH=/bin:/usr/bin:/sbin:/usr/sbin peer_var() { [ -n "$1" ] && [ "$1" != "yes" ] } update_dns() { peer_var "${PEER_DNS}" && return [ -z "${domain}" ] && [ -z "${dns}" ] && return conf="# Generated by udhcpc for ${interface}\n" [ -n "${domain}" ] && conf="${conf}domain ${domain}\n" for i in ${dns} ; do conf="${conf}nameserver ${i}\n" done if [ -x /sbin/resolvconf ] ; then printf "${conf}" | resolvconf -a ${interface} else printf "${conf}" > /etc/resolv.conf chmod 644 /etc/resolv.conf fi } update_ntp() { peer_var "${PEER_NTP}" && return [ -z "${ntpsrv}" ] && return conf="# Generated by udhcpc for interface ${interface}\n" conf="${conf}restrict default noquery notrust nomodify\n" conf="${conf}restrict 127.0.0.1\n" for i in ${ntpsrv} ; do conf="${conf}restrict ${i} nomodify notrap noquery\n" conf="${conf}server ${i}\n" done conf="${conf}driftfile /var/lib/ntp/ntp.drift\n" conf="${conf}logfile /var/log/ntp.log\n" printf "${conf}" > /etc/ntp.conf chmod 644 /etc/ntp.conf } update_hostname() { peer_var "${PEER_HOSTNAME}" && return [ -z "${hostname}" ] && return myhost="$(hostname)" [ -z "${myhost}" ] || [ "${myhost}" = "(none)" ] && hostname "${hostname}" } update_interface() { [ -n "${broadcast}" ] && broadcast="broadcast ${broadcast}" [ -n "${subnet}" ] && netmask="netmask ${subnet}" [ -n "${mtu}" ] && mtu="mtu ${mtu}" ifconfig "${interface}" ${ip} ${broadcast} ${netmask} ${mtu} } update_routes() { peer_var "${PEER_ROUTERS}" && return if [ -n "${router}" ] ; then metric= [ -n "${IF_METRIC}" ] && metric="metric ${IF_METRIC}" for i in ${router} ; do route add default gw "${i}" ${metric} dev "${interface}" done fi } deconfig() { ifconfig "${interface}" 0.0.0.0 if ! peer_var "${PEER_ROUTERS}" ; then while route del default dev "${interface}" >/dev/null 2>&1; do : done fi if ! peer_var "${PEER_DNS}" ; then [ -x /sbin/resolvconf ] && resolvconf -d "${interface}" fi } if [ -r "/var/run/udhcpc-${interface}.conf" ]; then . "/var/run/udhcpc-${interface}.conf" fi case "$1" in bound|renew) update_hostname update_interface update_routes update_dns update_ntp ;; deconfig|leasefail) deconfig ;; nak) echo "nak: ${message}" ;; *) echo "unknown option $1" >&2 echo "Usage: $0 {bound|deconfig|leasefail|nak|renew}" >&2 exit 1 ;; esac exit 0