[Bro] Fwd: Undefined symbol while writing an analyzer
Luis Martin Liras
martin.liras at gmail.com
Thu Apr 21 08:46:43 PDT 2016
Hey guys,
I would really appreciate some help on this.
I think I can reduce the source of the problem to two points:
- A namespace problem. I have revised my code and does not find anything
wrong. I'll keep checking
- A linkage problem:
To compile the plugin I followed the instructions of the "Writing Bro
Plugins" documentation guide. In the Plugins.cc file instantiated of the
Analyzer and included "Myprotocol.h", which had been previously created
with binpac_Quickstart's start.py
However the Makefile and configure files were created with the
"init-plugin" script. Do you know if I have to modify anything in the
Makefile to build a protocol analyzer plugin?
Unfortunately in the "Writing Bro plugins" documentation page, the
"Protocol Analyzers" section is empty...
Hope you can help me.
Best reagards!
-------- Forwarded Message --------
Subject: Undefined symbol while writing an analyzer
Date: Wed, 20 Apr 2016 11:48:12 +0200
From: Luis Martin <martin.liras at gmail.com>
To: bro at bro.org
Hi,
I'm quite new in bro, but I'm trying to develop an analyzer as a plugin
(Not an easy task), using the modbus analyzer as a starting point.
I have passed through all the steps and everything seem to be OK: It
compiled OK and Bro detects the plugin and its events when run with the
-NN option
However when I try to register my analyzer:
...
Analyzer::register_for_ports(Analyzer::ANALYZER_UMAS, ports);
...
I get the following error:
../build/src/bro: symbol lookup error:
/tools/pruebas_bro/bro/bro/umas_plugin/build//lib/UMAS-UNITY.linux-x86_64.so
<http://UMAS-UNITY.linux-x86_64.so>: undefined symbol:
_ZN8analyzer4umas16UmasTCP_AnalyzerC1EP10Connection
Is necessary to declare ANALYZER_UMAS anywhere?.
How could I debug this error?.
Anyone who has an idea could help me ?
Thanks !
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