X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/fa2a6d6883931ef2ea2e6785b5547f0655c72ec7..ef34750d84e32dd7fea46134ce353e4a73993229:/package/base-files/files/usr/share/udhcpc/default.script?ds=sidebyside diff --git a/package/base-files/files/usr/share/udhcpc/default.script b/package/base-files/files/usr/share/udhcpc/default.script index 7ce3d2aa8..b32b2c9f2 100755 --- a/package/base-files/files/usr/share/udhcpc/default.script +++ b/package/base-files/files/usr/share/udhcpc/default.script @@ -1,66 +1,223 @@ #!/bin/sh [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1 + . /etc/functions.sh include /lib/network - RESOLV_CONF="/tmp/resolv.conf.auto" -hotplug_event() { - scan_interfaces - for ifc in $interfaces; do - config_get ifname $ifc ifname - [ "$ifname" = "$interface" ] || continue +change_state () { + [ -n "$ifc" ] || return + uci_revert_state "$1" "$2" "$3" "$4" + uci_set_state "$1" "$2" "$3" "$4" +} - config_get proto $ifc proto - [ "$proto" = "dhcp" ] || continue - [ ifup = "$1" ] && { - uci set "/var/state/network.$ifc.ipaddr=$ip" - uci set "/var/state/network.$ifc.netmask=${subnet:-255.255.255.0}" - uci set "/var/state/network.$ifc.dnsdomain=$domain" - uci set "/var/state/network.$ifc.dns=$dns" - uci set "/var/state/network.$ifc.gateway=$router" - } - env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface - done +uci_get() { + [ -n "$ifc" ] || return + uci -P /dev/null get "$1" 2>/dev/null } -case "$1" in - deconfig) - ifconfig $interface 0.0.0.0 - hotplug_event ifdown - ;; - renew|bound) - ifconfig $interface $ip \ - netmask ${subnet:-255.255.255.0} \ - broadcast ${broadcast:-+} - - [ -n "$router" ] && { - for i in $router ; do - echo "adding router $i" - route add default gw $i dev $interface - valid="$valid|$i" - - done - - echo "deleting old routes" - $(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}') - } - - [ -n "$dns" ] && { - echo -n > "${RESOLV_CONF}.tmp" - ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp" - for i in $dns ; do - echo "adding dns $i" - echo "nameserver $i" >> "${RESOLV_CONF}.tmp" - done - mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF" - } - - hotplug_event ifup +setup_interface () { + local old_ip + local old_broadcast + local old_subnet + local old_router + local old_dns + local user_dns + local user_router + + [ -n "$ifc" ] && { + config_get old_ip "$ifc" ipaddr + config_get old_broadcast "$ifc" broadcast + config_get old_subnet "$ifc" netmask + } + + [ "$ip" != "$old_ip" ] \ + || [ "${broadcast:-+}" != "$old_broadcast" ] \ + || [ "${subnet:-255.255.255.0}" != "$old_subnet" ] && { + echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}" + ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+} + + change_state network "$ifc" ipaddr "$ip" + change_state network "$ifc" broadcast "${broadcast:-+}" + change_state network "$ifc" netmask "${subnet:-255.255.255.0}" + } + + + # Default Route + [ -n "$ifc" ] && { + change_state network "$ifc" lease_gateway "$router" + config_get old_router "$ifc" gateway + user_router=$(uci_get "network.$ifc.gateway") + [ -n "$user_router" ] && router="$user_router" + } + + [ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && [ "$router" != "$old_router" ] && { + echo "udhcpc: setting default routers: $router" + + local valid_gw="" + for i in $router ; do + route add default gw $i dev $interface + valid_gw="${valid_gw:+$valid_gw|}$i" + done - # user rules - [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user - ;; -esac + eval $(route -n | awk ' + /^0.0.0.0\W{9}('$valid_gw')\W/ {next} + /^0.0.0.0/ {print "route del -net "$1" gw "$2";"} + ') + + change_state network "$ifc" gateway "$router" + } + + # CIDR STATIC ROUTES (rfc3442) + [ -n "$cidrroute" ] && { + # This defines how many CIDR Routes can be assigned so that we do not enter + # an endless loop on malformed data + MAXCIDRROUTES=24; + while [ ${MAXCIDRROUTES} -gt "0" ]; do + # Format is + # $MASK $NW $GW + # $NW == AAA.BBB.CCC.DDD + # $GW == EEE.FFF.CCC.DDD + # $MASK AAA.[BBB].[CCC].[DDD] EEE.FFF.GGG.HHH + # 1 2 3 4 5 6 7 8 9 + MASK=$(echo $cidrroute | awk '{ print $1 }') + if [ ${MASK} = "0" ] ; then + # $MASK EEE.FFF.GGG.HHH + # 1 2 3 5 6 + NW="0" + GW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' ) + elif [ ${MASK} -le "8" ] ; then + # $MASK AAA EEE.FFF.GGG.HHH + # 1 2 3 5 6 7 + NW=$(echo $cidrroute | awk '{ print $2 }' ) + GW=$(echo $cidrroute | awk '{ print $3"."$4"."$5"."$6 }' ) + elif [ ${MASK} -le "16" ] ; then + # $MASK AAA.BBB EEE.FFF.GGG.HHH + # 1 2 3 5 6 7 8 + NW=$(echo $cidrroute | awk '{ print $2"."$3 }' ) + GW=$(echo $cidrroute | awk '{ print $4"."$5"."$6"."$7 }' ) + elif [ ${MASK} -le "24" ] ; then + # $MASK AAA.BBB.CCC EEE.FFF.GGG.HHH + # 1 2 3 4 5 6 7 8 + NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4 }' ) + GW=$(echo $cidrroute | awk '{ print $5"."$6"."$7"."$8 }' ) + + else + # $MASK AAA.BBB.CCC.DDD EEE.FFF.GGG.HHH + # 1 2 3 4 5 6 7 8 9 + NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' ) + GW=$(echo $cidrroute | awk '{ print $6"."$7"."$8"."$9 }' ) + fi + echo [$ROUTECOUNTER] Route Network: $NW/$MASK Gateway: $GW on $interface + + # TODO: Check for malformed data here to eliminate counter workaround + # Malformed data is: ... or xxx... or xxx.yyy.. or xxx.yyy.zzz. + + [ -n "$NW" ] && [ -n "$GW" ] && { + route add $NW gw $GW dev $interface + } + + # Clear the strings incase they don't get set next time around + if [ ${NW} = "0" ]; then + NW="" + fi + TMP="$MASK $NW $GW " + NW="" + GW="" + + # Remove the '.' so that we can delete them from the input with sed + TMP=$(echo $TMP | sed "s/\./ /g") + + # Remove the previous entry from cidrroute + cidrroute=$(echo $cidrroute | sed "s/$TMP//g") + + # Add to counter + let ROUTECOUNTER=$ROUTECOUNTER+1; + let MAXCIDRROUTES=$MAXCIDRROUTES-1; + + # Leave the loop if cidrroutes is empty (we've parsed everything) + [ ! -n "$cidrroute" ] && break + + done + + echo "done." + } + + # DNS + config_get old_dns "$ifc" dns + user_dns=$(uci_get "network.$ifc.dns") + [ -n "$user_dns" ] && dns="$user_dns" + + [ -n "$dns" ] && [ ! -s "${RESOLV_CONF}" -o "$dns" != "$old_dns" ] && { + echo "udhcpc: setting dns servers: $dns" + echo -n > "${RESOLV_CONF}.tmp" + for i in $dns ; do + echo "nameserver $i" >> "${RESOLV_CONF}.tmp" + done + ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp" + mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF" + + change_state network "$ifc" dnsdomain "$domain" + change_state network "$ifc" dns "$dns" + } + + [ -n "$ifc" ] || return + + # UCI State + change_state network "$ifc" lease_server "$serverid" + change_state network "$ifc" lease_acquired "$(date '+%s')" + change_state network "$ifc" lease_lifetime "$lease" + [ -n "$ntpsrv" ] && change_state network "$ifc" lease_ntpsrv "$ntpsrv" + [ -n "$timesvr" ] && change_state network "$ifc" lease_timesrv "$timesvr" + [ -n "$hostname" ] && change_state network "$ifc" lease_hostname "$hostname" + [ -n "$timezone" ] && change_state network "$ifc" lease_timezone "$timezone" + + + # Hotplug + env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface +} + + +scan_interfaces +applied= +for ifc in $interfaces __default; do + if [ "$ifc" = __default ]; then + ifc="" + [ -n "$applied" ] && continue + else + config_get ifname "$ifc" ifname + [ "$ifname" = "$interface" ] || continue + + config_get proto "$ifc" proto + [ "$proto" = "dhcp" ] || continue + applied=true + fi + + case "$1" in + deconfig) + ifconfig "$interface" 0.0.0.0 + [ -n "$ifc" ] && { + env -i ACTION="ifdown" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface + + config_get device "$ifc" device + config_get ifname "$ifc" ifname + config_get aliases "$ifc" aliases + uci_revert_state network "$ifc" + [ -n "$device" ] && uci_set_state network "$ifc" device "$device" + [ -n "$ifname" ] && uci_set_state network "$ifc" ifname "$ifname" + [ -n "$aliases" ] && uci_set_state network "$ifc" aliases "$aliases" + } + ;; + renew) + setup_interface update + ;; + bound) + setup_interface ifup + ;; + esac +done + +# user rules +[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user exit 0