From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Subject: /proc and/or /sys file to know if ip_tables is there?
Date: Thu, 28 Nov 2013 12:27:08 +0200
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Hi,

I need to know reliably at runtime whether or not ip_tables is either 
currently loaded as a module or built-in the kernel.

Testing for /sys/module/ip_tables solves the first issue, but in case of 
built-in it's not usable.

I could check for ip_tables_* symbols in /proc/kallsyms but I guess it's 
not a nice way.

Any other proper way?

Tomasz