Date: Sat, 23 Apr 2022 03:36:27 +0200 From: tuexen@freebsd.org To: Gleb Smirnoff <glebius@freebsd.org> Cc: Florian Smeets <flo@smeets.xyz>, Michael Butler <imb@protected-networks.net>, freebsd-current@freebsd.org Subject: Re: IPv6 TCP: first two SYN packets to local v6 unicast addresses ignored Message-ID: <592A0A46-C703-4F93-9F43-5D167469A921@freebsd.org> In-Reply-To: <YmM8fknVX/wmUDiD@FreeBSD.org> References: <131c363a-7b7d-a106-5b8a-6838e7a66567@smeets.xyz> <E0584477-0F2E-454D-871C-368F14A9AF1D@freebsd.org> <9679642b-5de6-28be-a64b-07375c3efeba@smeets.xyz> <b12a74b2-cd7d-2066-ff60-b14c08d70d6f@protected-networks.net> <YlpSs8p/3Gh1JDI5@FreeBSD.org> <7cd2e76a-c6d1-e8d7-b9fb-b8797f1ca731@smeets.xyz> <YmM8fknVX/wmUDiD@FreeBSD.org>
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> On 23. Apr 2022, at 01:38, Gleb Smirnoff <glebius@freebsd.org> wrote: > > Hi Florian, > > here is a patch that should help with the IPv6 problem. I'm not > yet committing it, it might be not final. Hi Gleb, when I was looking at the code, I was also wondering if it would make more sense to check for M_LOOP. However, isn't the rcvif wrong for the first two received packets? I would expect it always to be the loopback interface. Is that expectation wrong? I also have an additional question: Why is this check protected by an (ia != NULL) condition? It does not make any use of ia? Best regards Michael > -- > Gleb Smirnoff > <ip6.sav.diff>
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