netdev - Re: checkentry function

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Message-ID: <1286280462.2796.58.camel@edumazet-laptop>
Date:	Tue, 05 Oct 2010 14:07:42 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Nicola Padovano <nicola.padovano@...il.com>
Cc:	Jan Engelhardt <jengelh@...ozas.de>,
	Stephen Hemminger <shemminger@...tta.com>,
	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: checkentry function

Le mardi 05 octobre 2010 à 13:46 +0200, Nicola Padovano a écrit :
> 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)
> >>> {
> >>> ...
> >>> }
> >>
> >>as i've written in a previously mail this is the checkentry function
> >>that i use in my source code to check if the iptables command line is
> >>a right line.
> >>
> >>[CHECK_ENTRY_CODE]
> >>static bool xt_tarpit_check(const char *tablename, const void *entry,
> >>                           const struct xt_target *target, void *targinfo,
> >>                           unsigned int hook_mask)
> >>
> >>i don't know what "static int hashlimit_mt_check(const struct
> >>xt_mtchk_param *par)" is...
> >
> > It's the proper function header.
> >
> 
> this is the whole code:
> 
> [WHOLE_CODE]

> [/WHOLE_CODE]
> 

Nicola

For the second and last time, could you please _read_ _current_ kernel
source code, and correct your code, before asking us ?

We do not support prehistoric kernels.

Thank you

Dont ask us if you are not able to find hashlimit_mt_check() or any
checkentry function in current kernel sources.

# find net/netfilter/ | xargs grep -n _check
net/netfilter/nf_conntrack_proto_dccp.c:596:	if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
net/netfilter/nf_conntrack_proto_dccp.c:597:	    nf_checksum_partial(skb, hooknum, dataoff, cscov, IPPROTO_DCCP,
net/netfilter/xt_connmark.c:77:static int connmark_tg_check(const struct xt_tgchk_param *par)
net/netfilter/xt_connmark.c:107:static int connmark_mt_check(const struct xt_mtchk_param *par)
net/netfilter/xt_connmark.c:127:	.checkentry     = connmark_tg_check,
net/netfilter/xt_connmark.c:138:	.checkentry     = connmark_mt_check,
net/netfilter/xt_CT.c:57:static int xt_ct_tg_check(const struct xt_tgchk_param *par)
net/netfilter/xt_CT.c:149:	.checkentry	= xt_ct_tg_check,
...

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