lkml.org 
[lkml]   [2016]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v2] ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output
From
From: Zheng Li <lizheng043@gmail.com>
Date: Mon, 12 Dec 2016 09:56:05 +0800

> From: zheng li <james.z.li@ericsson.com>
>
> There is an inconsistent conditional judgement in __ip_append_data and
> ip_finish_output functions, the variable length in __ip_append_data just
> include the length of application's payload and udp header, don't include
> the length of ip header, but in ip_finish_output use
> (skb->len > ip_skb_dst_mtu(skb)) as judgement, and skb->len include the
> length of ip header.
>
> That causes some particular application's udp payload whose length is
> between (MTU - IP Header) and MTU were fragmented by ip_fragment even
> though the rst->dev support UFO feature.
>
> Add the length of ip header to length in __ip_append_data to keep
> consistent conditional judgement as ip_finish_output for ip fragment.
>
> Signed-off-by: Zheng Li <james.z.li@ericsson.com>

Applied, thanks.

\
 
 \ /
  Last update: 2016-12-20 16:47    [W:0.094 / U:0.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site