luci-proto-wireguard: add support for fwmark option

[project/luci.git] / modules / luci-base / luasrc / cbi / datatypes.lua

diff --git a/modules/luci-base/luasrc/cbi/datatypes.lua b/modules/luci-base/luasrc/cbi/datatypes.lua
index 62b0e0f..cf56566 100644 (file)
--- a/modules/luci-base/luasrc/cbi/datatypes.lua
+++ b/modules/luci-base/luasrc/cbi/datatypes.lua
@@ -283,6 +283,14 @@ function hexstring(val)
        return false
 end
 
+function hex(val, maxbytes)
+       maxbytes = tonumber(maxbytes)
+       if val and maxbytes ~= nil then
+               return ((val:match("^0x[a-fA-F0-9]+$") ~= nil) and (#val <= 2 + maxbytes * 2))
+       end
+       return false
+end
+
 function base64(val)
        if val then
                return (val:match("^[a-zA-Z0-9/+]+=?=?$") ~= nil) and (math.fmod(#val, 4) == 0)