Initial support for DHCP range configuration

scripts/lua/get_dhcp_config.lua

@@ -0,0 +1,30 @@
+--
+-- (C) 2017-18 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+local json = require("dkjson")
+local dhcp_utils = require("dhcp_utils")
+require "lua_utils"
+
+sendHTTPContentTypeHeader('text/json')
+
+local ifid = _GET["ifid"]
+local rv = {data={}, sort={{"column_", "asc"}}, totalRows=0}
+local res = rv.data
+
+if((ifid ~= nil) and (isAdministrator())) then
+  interface.select(getInterfaceName(ifid))
+
+  for _, range in ipairs(dhcp_utils.listRanges(ifid)) do
+    res[#res + 1] = {
+      column_first_ip = range[1],
+      column_last_ip = range[2],
+    }
+
+    rv.totalRows = rv.totalRows + 1
+  end
+end
+
+print(json.encode(rv))