netdev - Re: [patch net v2 1/3] udp6: respect IPV6_DONTFRAG sockopt in case there are pending frames

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20131019204508.GE31333@order.stressinduktion.org>
Date:	Sat, 19 Oct 2013 22:45:08 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Jiri Pirko <jiri@...nulli.us>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	eric.dumazet@...il.com, jdmason@...zu.us, yoshfuji@...ux-ipv6.org,
	kuznet@....inr.ac.ru, jmorris@...ei.org, kaber@...sh.net,
	herbert@...dor.apana.org.au
Subject: Re: [patch net v2 1/3] udp6: respect IPV6_DONTFRAG sockopt in case there are pending frames

On Sat, Oct 19, 2013 at 12:29:15PM +0200, Jiri Pirko wrote:
> if up->pending != 0 dontfrag is left with default value -1. That
> causes that application that do:
> sendto len>mtu flag MSG_MORE
> sendto len>mtu flag 0
> will receive EMSGSIZE errno as the result of the second sendto.
> 
> This patch fixes it by respecting IPV6_DONTFRAG socket option.
> 
> introduced by:
> commit 4b340ae20d0e2366792abe70f46629e576adaf5e "IPv6: Complete IPV6_DONTFRAG support"
> 
> Signed-off-by: Jiri Pirko <jiri@...nulli.us>

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html