From: David Laight <David.Laight@ACULAB.COM>
To: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>
Cc: Neil Horman <nhorman@tuxdriver.com>,
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Subject: sctp doesn't honour net.ipv6.bindv6only
Date: Tue, 19 May 2020 10:47:17 +0000 [thread overview]
Message-ID: <62ff05456c5d4ab5953b85fff3934ba9@AcuMS.aculab.com> (raw)
The sctp code doesn't use sk->sk_ipv6only (which is initialised
from net.ipv6.bindv6only) but instead uses its own flag
sp->v4mapped which always defaults to 1.
There may also be an expectation that
[gs]etsockopt(sctp_fd, IPPROTO_IPV6, IPV6_V6ONLY,...)
will access the flag that sctp uses internally.
(Matching TCP and UDP.)
Patch is trivial (remembering the inverted state)
but I don't have a clean enough source tree :-(
David
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Registration No: 1397386 (Wales)
next reply other threads:[~2020-05-19 10:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 10:47 David Laight [this message]
2020-05-19 19:47 ` sctp doesn't honour net.ipv6.bindv6only Marcelo Ricardo Leitner
2020-05-20 9:10 ` David Laight
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