/proc and/or /sys file to know if ip

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* /proc and/or /sys file to know if ip_tables is there?
@ 2013-11-28 10:27 Tomasz Bursztyka
  2013-11-28 16:10 ` Phil Oester
  0 siblings, 1 reply; 3+ messages in thread
From: Tomasz Bursztyka @ 2013-11-28 10:27 UTC (permalink / raw)
  To: netfilter-devel

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

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: /proc and/or /sys file to know if ip_tables is there?
  2013-11-28 10:27 /proc and/or /sys file to know if ip_tables is there? Tomasz Bursztyka
@ 2013-11-28 16:10 ` Phil Oester
  2013-11-29  6:01   ` Tomasz Bursztyka
  0 siblings, 1 reply; 3+ messages in thread
From: Phil Oester @ 2013-11-28 16:10 UTC (permalink / raw)
  To: Tomasz Bursztyka; +Cc: netfilter-devel

On Thu, Nov 28, 2013 at 12:27:08PM +0200, Tomasz Bursztyka wrote:
> 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?

[ -f /proc/net/ip_tables_names ]

Although built in components will show up in /sys/module/ also.

Phil

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: /proc and/or /sys file to know if ip_tables is there?
  2013-11-28 16:10 ` Phil Oester
@ 2013-11-29  6:01   ` Tomasz Bursztyka
  0 siblings, 0 replies; 3+ messages in thread
From: Tomasz Bursztyka @ 2013-11-29  6:01 UTC (permalink / raw)
  To: Phil Oester; +Cc: netfilter-devel

Hi Phil,

> Although built in components will show up in/sys/module/  also.

I was expecting something like that, but making as built-in only 
ip_tables module did not.
I guess I need to add other stuff too.

Thanks,

Tomasz



^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-11-29  6:01 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-11-28 10:27 /proc and/or /sys file to know if ip_tables is there? Tomasz Bursztyka
2013-11-28 16:10 ` Phil Oester
2013-11-29  6:01   ` Tomasz Bursztyka

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