Rename active agent port to listen port (zabbix.agent.listenport)

zabbix.lua

@@ -1,4 +1,4 @@
-local VERSION = "2022-07-26.1"
+local VERSION = "2022-07-26.2"
 local zabbix_protocol = Proto("Zabbix", "Zabbix Protocol")
 -- for some reason the protocol name is shown in UPPERCASE in Protocol column
 -- (and in Proto.name), so let's define a string to override that
@@ -30,7 +30,7 @@ local p_agent_name = ProtoField.string("zabbix.agent.name", "Agent Name", base.A
 local p_agent_hostmetadata = ProtoField.string("zabbix.agent.hostmetadata", "Agent Host Metadata", base.ASCII)
 local p_agent_hostinterface = ProtoField.string("zabbix.agent.hostinterface", "Agent Host Interface", base.ASCII)
 local p_agent_listenip = ProtoField.string("zabbix.agent.listenip", "Agent Listen IP", base.ASCII)
-local p_agent_port = ProtoField.uint16("zabbix.agent.port", "Agent Port")
+local p_agent_listenport = ProtoField.uint16("zabbix.agent.listenport", "Agent Listen Port")
 local p_agent_checks = ProtoField.bool("zabbix.agent.activechecks", "Agent Active Checks")
 local p_agent_data = ProtoField.bool("zabbix.agent.data", "Agent Data")
 local p_agent_heartbeatfreq = ProtoField.uint16("zabbix.agent.heartbeatfreq", "Agent Heartbeat Frequency")
@@ -48,7 +48,7 @@ zabbix_protocol.fields = {
     p_large_length, p_large_reserved, p_large_uncompressed_length,
     p_data, p_data_len, p_success, p_failed, p_response,
     p_version, p_session, p_agent, p_agent_name, p_agent_checks, p_agent_data, p_agent_heartbeatfreq,
-    p_agent_hostmetadata, p_agent_hostinterface, p_agent_listenip, p_agent_port,
+    p_agent_hostmetadata, p_agent_hostinterface, p_agent_listenip, p_agent_listenport,
     p_proxy, p_proxy_name, p_proxy_heartbeat, p_proxy_data, p_proxy_config,
     p_proxy_response, p_time,
 }
@@ -151,7 +151,7 @@ local function doDissect(buffer, pktinfo, tree)
     local agent_hostmetadata = nil
     local agent_hostinterface = nil
     local agent_listenip = nil
-    local agent_port = nil
+    local agent_listenport = nil
     local proxy_name = nil
     local version = nil
     local session = nil
@@ -175,7 +175,7 @@ local function doDissect(buffer, pktinfo, tree)
         agent_hostmetadata = string.match(data_str, '"host_metadata":"(.-)"')
         agent_hostinterface = string.match(data_str, '"interface":"(.-)"')
         agent_listenip = string.match(data_str, '"ip":"(.-)"')
-        agent_port = string.match(data_str, '"port":([0-9]*)')
+        agent_listenport = string.match(data_str, '"port":([0-9]*)')
     elseif string.find(data_str, '{"request":"agent data",') then
         -- active agent sending data
         agent = true
@@ -413,8 +413,8 @@ local function doDissect(buffer, pktinfo, tree)
     if agent_listenip then
         subtree:add(p_agent_listenip, agent_listenip)
     end
-    if agent_port then
-        subtree:add(p_agent_port, agent_port)
+    if agent_listenport then
+        subtree:add(p_agent_listenport, agent_listenport)
     end
     if agent_heartbeat_freq then
         subtree:add(p_agent_heartbeatfreq, agent_heartbeat_freq)