From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: checkentry function
Date: Tue, 05 Oct 2010 08:23:58 +0200
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Cc: Stephen Hemminger <shemminger@vyatta.com>,
	netfilter-devel <netfilter-devel@vger.kernel.org>,
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To: Nicola Padovano <nicola.padovano@gmail.com>
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Le mardi 05 octobre 2010 =C3=A0 08:11 +0200, Nicola Padovano a =C3=A9cr=
it :
> >
> > Negative (ie < 0) is used for error numbers. This is confusing
> > because in older kernels the checkentry returned a bool which
> > is defined as 1 okay and 0 for error.
> >
> ok i see.
>=20
> and why i have this output?
> DEBUG: the tablename (not FILTER) is: =EF=BF=BD%H =EF=BF=BD
>=20
> I want block my target if the table name is NOT filter...so i write:
>=20
> [CODE]
> ...
>  if (strcmp(tablename, "filter"))   {
>    printk(KERN_INFO "DEBUG: the tablename (not FILTER) is %s\n",table=
name);
>    return ERROR_VALUE; // < 0
>  }
> [/CODE]
>=20
> but in the tablename variable i haven't the table's right value (but =
i
> have: =EF=BF=BD%H =EF=BF=BD a wrong value)...what's the problem?
>=20
>=20

Because xxx_check() signature is not the one you use.

Could you read source code of _current_ existing modules , and use
copy/paste ?

static int hashlimit_mt_check(const struct xt_mtchk_param *par)
{
=2E..
}