netdev - Re: Why MLDv2 Report packet is freed ?

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Message-Id: <20080415.234844.99535411.yoshfuji@linux-ipv6.org>
Date:	Tue, 15 Apr 2008 23:48:44 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	ianbrn@...il.com
Cc:	netdev@...r.kernel.org, yoshfuji@...ux-ipv6.org
Subject: Re: Why MLDv2 Report packet is freed ?

In article <d0383f90804150623r2eb071fau200a67c6ce65a7e0@...l.gmail.com> (at Tue, 15 Apr 2008 16:23:33 +0300), "Ian Brown" <ianbrn@...il.com> says:

> Now, I don't understand something here:
> I had looked at icmpv6_rcv() in net/ipv6/icmp.c.
> 
> I see that when the type of the ICMP packet is ICMPV6_MLD2_REPORT it
> is dropped (calling kfree_skb()).
> 
> shouldn't it be handled and passed onward so that it will
> eventually reach the pim6sd daemon ? or is this
> only implemented currently for MLDV1 ?

In MLDv1, Report suppress other hosts' reports, but 
On the other hand, in MLDv2, Reports does not suppress.
So, MLDv2 Report is useless for in-kernel MLD handler.

MLD packets are handled in other place.

--yoshfuji
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