Date: Mon, 24 Aug 2015 17:33:08 +0200 From: Markus Gebert <markus.gebert@hostpoint.ch> To: Kristof Provost <kp@FreeBSD.org> Cc: freebsd-net@freebsd.org, freebsd-pf@freebsd.org Subject: Re: Near-term pf plans Message-ID: <3121D8E4-A27E-475B-9771-C09347D1D793@hostpoint.ch> In-Reply-To: <20150823150957.GK48727@vega.codepro.be> References: <20150823150957.GK48727@vega.codepro.be>
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Hi Kristof > On 23.08.2015, at 17:09, Kristof Provost <kp@FreeBSD.org> wrote: > > - PR 202351 > This is a panic after ip6 reassembly in pf. We set the rcvif to NULL > when refragmenting. That seems to go OK execpt when we're refragmenting > broadcast/multicast packets in the forwarding path. It's not at all > clear to me how that could happen. if_bridge wants to forward ipv6 multicasts. pf refragmentation code tries to send out the resulting packets using ip6_forward() which does not handle multicasts, drops the packet and tries to log that fact, which causes the panic. I’ve updated the PR with some more thoughts about this. Markus
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