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Date:	Tue, 5 Oct 2010 14:03:23 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	Nicola Padovano <nicola.padovano@...il.com>
cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: checkentry function


On Tuesday 2010-10-05 13:46, Nicola Padovano wrote:
>On Tue, Oct 5, 2010 at 1:32 PM, Jan Engelhardt <jengelh@...ozas.de> wrote:
>> On Tuesday 2010-10-05 13:16, Nicola Padovano wrote:
>>>>
>>>> Could you read source code of _current_ existing modules , and use
>>>> copy/paste ?
>>>>
>>>> static int hashlimit_mt_check(const struct xt_mtchk_param *par)
>>>> {
>>>> ...
>>>> }
>>>
>
>this is the whole code:
>
>[WHOLE_CODE]
>static bool xt_function_check(const char *tablename, const void *entry,
>                            const struct xt_target *target, void *targinfo,
>                            unsigned int hook_mask)
>{
>
>  if (strcmp(tablename, "filter"))
>  {
>    printk(KERN_INFO "!=filter %s\n",tablename);
>    return false;
>  }
>
>  return true;
>}

And as Stephen said, the proper type for current kernels
is
(static) bool xt_function_check(const struct xt_mtchk_param *par).

If you are compiling against such, you should have gotten appropriate
warnings from gcc.

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