Date: Wed, 20 Jun 2012 08:12:12 +0000 From: GuYong <guyong1978@hotmail.com> To: <freebsd-net@freebsd.org> Subject: Question about MLDv2 implemenation in Kernel Message-ID: <SNT112-W22EEF8BF50EB9EA8A845ADC5FE0@phx.gbl>
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Hi, everyone, I'm looking at the MLDv2 implemenation in kernel, and there seem to be some issues, could anyone confirm them? 1. RFC3810 clause 6.1 mentions there is a Source Retransmission Counter associated to each source, so that the merged report could contain the content that is interrupted by a new state change report BUT, I didn't see this is implemented currently! 2. Regarding the 'Older Version Querier Present timer', the code is like this:old_version_timer = (mli->mli_rv * mli->mli_qi) + mli->mli_qri; while mli->mli_qri = maxdelay, and maxdelay = ntohs(mld->mld_maxdelay). BUT, mld_maxdelay is in units of milliseconds (clause 5.1.3), I think it should be divided by 1000 before it adds to old_version_timer. 3. According to RFC, a node MUST accept and process any Query whose IP Destination Address field contains *any* of the address (unicast or multicast) assigned to the interface on which the Query arrives. BUT, I see the code only accept General Query addressed to FF02::1. Best Regards,Yong
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