ARP Stats Structures

scripts/lua/show_arp_matrix_data.lua

@@ -0,0 +1,86 @@
+--
+-- (C) 2013-18 - ntop.org
+--
+
+dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+
+sendHTTPContentTypeHeader('application/json')
+local json = require("dkjson")
+
+interface.select(ifname)
+
+
+
+--matrix = interface.getArpStatsMatrixInfo()
+
+--FOR NOW THIS IS ONLY FOR TESTING
+
+--tprint(matrix)
+
+
+--[[   here, the name of the stats are wrong
+for i,v in pairs(matrix) do 
+    print("from: ".. src_mac.." --> to: ".. dst_mac .. "<p></p>")
+    print("REQUEST (sent: " .. v["me_stats.sent.requests"] .. " received: ".. v["me_stats.rcvd.requests"]..") " )
+    print("REPLIES (sent: " .. v["me_stats.sent.replies"] .. " received: ".. v["me_stats.rcvd.replies"] ..") ")
+    print("<p>-------------</p>")
+end
+--]]
+
+
+local function containName(t,name)
+    for i,v in pairs(t) do
+        if v.name == name then return i end
+    end
+    return nil
+end
+
+function split(s,sep)
+    local sep, fields = sep, {}
+    local pattern = string.format("([^%s]+)", sep)
+    s:gsub(pattern, function(c) fields[#fields+1] = c end)
+    return fields
+ end
+
+
+--the created json file will contain only the relations between MACs, regardless the type of the pkts seen
+local function createRelations()  
+    matrix = interface.getArpStatsMatrixInfo()
+    local tbl = {}
+
+    for i,v in pairs(matrix) do 
+        local imports = {}
+        local index = 0
+        local macs = split(i,".")
+        local src_mac, dst_mac = macs[1], macs[2]
+
+        index = containName(tbl, src_mac)
+
+        if index ~= nil then -- the elem exist add import/counter!?
+            table.insert( tbl[index].imports, dst_mac )
+
+        else --add element 
+            --tbl[src_mac] = { name = src_mac, imports = {dst_mac} }
+            table.insert(tbl, { name = src_mac, imports = {dst_mac} })
+        end
+        --------------------------------------------------------------------------------------------
+        index = containName(tbl, dst_mac)
+        if index ~= nil then 
+
+            table.insert( tbl[index].imports, src_mac )
+               
+        else 
+            --tbl[dst_mac] = { name = dst_mac, imports = {src_mac} }
+            table.insert(tbl, { name = dst_mac, imports = {src_mac}  })
+        end
+    end
+
+    return json.encode(tbl, { indent = true })
+end
+
+
+--local a,b,c = json.decode( createRelations(),1,nil )
+print(createRelations())