lkml.org 
[lkml]   [2018]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH net 1/1 v4] rtnetlink: require unique netns identifier
From
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Wed, 7 Feb 2018 13:53:20 +0100

> Since we've added support for IFLA_IF_NETNSID for RTM_{DEL,GET,SET,NEW}LINK
> it is possible for userspace to send us requests with three different
> properties to identify a target network namespace. This affects at least
> RTM_{NEW,SET}LINK. Each of them could potentially refer to a different
> network namespace which is confusing. For legacy reasons the kernel will
> pick the IFLA_NET_NS_PID property first and then look for the
> IFLA_NET_NS_FD property but there is no reason to extend this type of
> behavior to network namespace ids. The regression potential is quite
> minimal since the rtnetlink requests in question either won't allow
> IFLA_IF_NETNSID requests before 4.16 is out (RTM_{NEW,SET}LINK) or don't
> support IFLA_NET_NS_{PID,FD} (RTM_{DEL,GET}LINK) in the first place.
>
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Applied, thanks Christian.

\
 
 \ /
  Last update: 2018-02-08 20:35    [W:2.510 / U:0.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site