rootfs: small fixes for getting dot-config URL via DHCP

Up eth0 before trying to get URL to dot-config via DHCP (needed when switch
start without IP address)

fix missing "CONFIG_" in CONFIG_DOTCONF_SOURCE_LOCAL

run /usr/share/udhcpc/default.script when getting URL to dot-config to get
IP address to avoid another DHCP requests just to get IP.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/rootfs_override/etc/init.d/dot-config

@@ -48,6 +48,8 @@ if [ -n "$CONFIG_DOTCONF_SOURCE_REMOTE" ] || [ -n "$CONFIG_DOTCONF_SOURCE_TRY_DH
 	    echo "force_dhcp" > "$tmpdir"/dot-config_source
 	fi
 
+	# up eth0 to allow dhcp requests
+	ifconfig eth0 up
 	# let udhcpc run /wr/bin/dhcp_get_filename.sh script to get "filename"
 	# from DHCP (which contain url with dot-config).
 	/sbin/udhcpc -i eth0 -s /wr/bin/dhcp_get_filename.sh -O bootfile -o \
@@ -112,7 +114,7 @@ if [ -n "$CONFIG_DOTCONF_SOURCE_REMOTE" ] || [ -n "$CONFIG_DOTCONF_SOURCE_TRY_DH
 	echo "download_error" > "$tmpdir"/dot-config_status
 	echo "Download error for dot-config \"$URL\", using old"
     fi
-elif [ -n "$DOTCONF_SOURCE_LOCAL" ]; then
+elif [ -n "$CONFIG_DOTCONF_SOURCE_LOCAL" ]; then
     echo "local" > "$tmpdir"/dot-config_source
     echo "Using local dot-config"
 else

userspace/rootfs_override/wr/bin/dhcp_get_filename.sh

@@ -14,3 +14,6 @@ tmpdir="/tmp"
 if [ -n "$boot_file" ]; then
     echo $boot_file > "$tmpdir"/dot-config_source_url
 fi
+
+# run also default script
+/usr/share/udhcpc/default.script $@