118 lines
2.4 KiB
Bash
118 lines
2.4 KiB
Bash
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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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