From: Florian Westphal <fw@strlen.de>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Florian Westphal <fw@strlen.de>,
Leonardo Bras <leonardo@linux.ibm.com>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
bridge@lists.linux-foundation.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Roopa Prabhu <roopa@cumulusnetworks.com>,
Nikolay Aleksandrov <nikolay@cumulusnetworks.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH v4 1/2] netfilter: Terminate rule eval if protocol=IPv6 and ipv6 module is disabled
Date: Tue, 3 Sep 2019 22:35:31 +0200 [thread overview]
Message-ID: <20190903203531.GF13660@breakpoint.cc> (raw)
In-Reply-To: <20190903201904.npna6dt25ug5gwvd@salvia>
Pablo Neira Ayuso <pablo@netfilter.org> wrote:
> On Tue, Sep 03, 2019 at 09:48:09PM +0200, Florian Westphal wrote:
> > We could do that from nft_do_chain_netdev().
>
> Indeed, this is all about the netdev case.
>
> Probably add something similar to nf_ip6_route() to deal with
> ip6_route_lookup() case? This is the one trigering the problem, right?
Yes, this particular problem is caused by ipv6 fib not being
initialized due to ipv6.disable=1. I don't know if there are cases
other than FIB.
> BTW, how does nft_fib_ipv6 module kicks in if ipv6 module is not
> loaded? The symbol dependency would pull in the IPv6 module anyway.
ipv6.disabled=1 does load the ipv6 module, but its non-functional.
next prev parent reply other threads:[~2019-09-03 20:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-30 18:13 [PATCH v4 0/2] Drop IPV6 packets if IPv6 is disabled on boot Leonardo Bras
2019-08-30 18:13 ` [PATCH v4 1/2] netfilter: Terminate rule eval if protocol=IPv6 and ipv6 module is disabled Leonardo Bras
2019-08-30 20:58 ` Florian Westphal
2019-09-03 16:46 ` Leonardo Bras
2019-09-03 16:49 ` Pablo Neira Ayuso
2019-09-03 16:56 ` Leonardo Bras
2019-09-03 17:05 ` Florian Westphal
2019-09-03 19:31 ` Pablo Neira Ayuso
2019-09-03 19:48 ` Florian Westphal
2019-09-03 20:19 ` Pablo Neira Ayuso
2019-09-03 20:35 ` Florian Westphal [this message]
2019-09-03 20:55 ` Pablo Neira Ayuso
2019-09-03 20:55 ` Pablo Neira Ayuso
2019-08-30 18:13 ` [PATCH v4 2/2] net: br_netfiler_hooks: Drops IPv6 packets if IPv6 module is not loaded Leonardo Bras
2019-08-30 20:55 ` Florian Westphal
2019-08-31 4:42 ` Leonardo Bras
2019-08-31 8:43 ` Florian Westphal
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