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add missing symbol
[openwrt.git] / package / base-files / files / usr / share / udhcpc / default.script
diff --git a/package/base-files/files/usr/share/udhcpc/default.script b/package/base-files/files/usr/share/udhcpc/default.script
index 53c8faf..b32b2c9 100755 (executable)
--- a/package/base-files/files/usr/share/udhcpc/default.script
+++ b/package/base-files/files/usr/share/udhcpc/default.script
@@ -1,57 +1,223 @@
 #!/bin/sh
 [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
 #!/bin/sh
 [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
+
 . /etc/functions.sh
 include /lib/network
 . /etc/functions.sh
 include /lib/network
+RESOLV_CONF="/tmp/resolv.conf.auto"
+
+change_state () {
+       [ -n "$ifc" ] || return
+       uci_revert_state "$1" "$2" "$3" "$4"
+       uci_set_state "$1" "$2" "$3" "$4"
+}
+
+uci_get() {
+       [ -n "$ifc" ] || return
+       uci -P /dev/null get "$1" 2>/dev/null
+}
+
+setup_interface () {
+       local old_ip
+       local old_broadcast
+       local old_subnet
+       local old_router
+       local old_dns
+       local user_dns
+       local user_router
+
+       [ -n "$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
+               
+               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
+                       }
 
 
-RESOLV_CONF="/tmp/resolv.conf"
+                       # Clear the strings incase they don't get set next time around
+                       if [ ${NW} = "0" ]; then
+                               NW=""
+                       fi
+                       TMP="$MASK $NW $GW "
+                       NW=""
+                       GW=""
 
 
-hotplug_event() {
-       scan_interfaces
-       for ifc in $interfaces; do
-               config_get ifname $ifc ifname
+                       # Remove the '.' so that we can delete them from the input with sed
+                       TMP=$(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
 
                [ "$ifname" = "$interface" ] || continue
 
-               config_get proto $ifc proto
+               config_get proto "$ifc" proto
                [ "$proto" = "dhcp" ] || continue
                [ "$proto" = "dhcp" ] || continue
+               applied=true
+       fi
 
 
-               env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug iface
-       done
-}
+       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
 
 
-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 ${broadcast:-+}
-
-               if [ -n "$router" ] ; then
-                       echo "deleting routers"
-                       while route del default gw 0.0.0.0 dev $interface >&- 2>&- ; do :; done
-                                       
-                       for i in $router ; do
-                               echo "adding router $i"
-                               route add default gw $i dev $interface
-                       done
-               fi
-               
-               [ -n "$dns" ] && {
-                       echo -n > $RESOLV_CONF
-                       ${domain:+echo search $domain} >> $RESOLV_CONF
-                       for i in $dns ; do
-                               echo "adding dns $i"
-                               echo "nameserver $i" >> $RESOLV_CONF
-                       done
-               }
-               
-               hotplug_event ifup
-               
-               # user rules
-               [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
-       ;;
-esac
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
 
 exit 0
 
 exit 0
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