* Reworked Luci-Splash

[project/luci.git] / core / src / ffluci / sys.lua

diff --git a/core/src/ffluci/sys.lua b/core/src/ffluci/sys.lua
index cde1877..8aa77cf 100644 (file)
--- a/core/src/ffluci/sys.lua
+++ b/core/src/ffluci/sys.lua
@@ -134,6 +134,19 @@ function net.devices()
        return devices
 end
 
+-- Returns the MAC-Address belonging to the given IP-Address
+function net.ip4mac(ip)
+       local mac = nil
+       
+       for i, l in ipairs(net.arptable()) do
+               if l["IP address"] == ip then
+                       mac = l["HW address"]
+               end
+       end
+       
+       return mac
+end
+
 -- Returns the prefix to a given netmask
 function net.mask4prefix(mask)
        local bin = net.ip4bin(mask)