netdev - Re: [PATCH 3/4] netfilter: Pass socket pointer down through okfn().

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Date:	Tue, 07 Apr 2015 11:59:34 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	pablo@...filter.org, jiri@...nulli.us
Subject: Re: [PATCH 3/4] netfilter: Pass socket pointer down through okfn().

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Tue, 07 Apr 2015 16:44:29 +0200

> On So, 2015-04-05 at 22:19 -0400, David Miller wrote:
>> --- a/include/linux/netfilter.h
>> +++ b/include/linux/netfilter.h
>> @@ -54,7 +54,7 @@ struct nf_hook_state {
>>  	struct net_device *in;
>>  	struct net_device *out;
>>  	struct sock *sk;
>> -	int (*okfn)(struct sk_buff *);
>> +	int (*okfn)(struct sock *, struct sk_buff *);
>>  };
> 
> If we give okfn the signature int (*okfn)(struct nf_hook_state *); then
> we would not need to touch anything else to enhance this.
> 
> What do you think?

We do not want nf_hook_state being an argument for non-netfilter output
functions in the various protocols.

So this is a terrible idea.
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