Reworked host packets page and removed dscp page

scripts/lua/rest/v2/get/host/packets/arp_data.lua

@@ -0,0 +1,40 @@
+--
+-- (C) 2013-22 - ntop.org
+--
+
+dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+-- Imports
+require "lua_utils"
+local rest_utils = require "rest_utils"
+local graph_utils = require "graph_utils"
+
+-- Local variables
+local host_ip = _GET["host"]
+local vlan = _GET["vlan"]
+local host_stats = interface.getHostInfo(host_ip, vlan) or {}
+local rsp = {
+  labels = {},
+  series = {},
+  colors = {},
+}
+
+if host_stats then
+  local eth_stats = interface.getMacInfo(host_stats["mac"])
+
+  if eth_stats then
+    local arp_sent = eth_stats["arp_requests.sent"] + eth_stats["arp_replies.sent"]
+    local arp_rcvd = eth_stats["arp_requests.rcvd"] + eth_stats["arp_replies.rcvd"]
+
+    rsp["labels"][1] = i18n("sent")
+    rsp["series"][1] = arp_sent
+    rsp["colors"][1] = graph_utils.get_html_color(1)
+
+    rsp["labels"][2] = i18n("received")
+    rsp["series"][2] = arp_rcvd
+    rsp["colors"][2] = graph_utils.get_html_color(2)
+  end
+end
+
+rest_utils.answer(rest_utils.consts.success.ok, rsp)