diff options
| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2014-04-14 17:11:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-30 21:52:15 -0700 |
| commit | 278d20a5318e5f2ad30be49607da867ff9ff8b03 (patch) | |
| tree | f7771d3c605c06cd1f6e0d810b9440aca9b13b85 /net/core | |
| parent | 314760e66c35c8ffa51b4c4ca6948d207e783079 (diff) | |
ip6_gre: don't allow to remove the fb_tunnel_dev
[ Upstream commit 54d63f787b652755e66eb4dd8892ee6d3f5197fc ]
It's possible to remove the FB tunnel with the command 'ip link del ip6gre0' but
this is unsafe, the module always supposes that this device exists. For example,
ip6gre_tunnel_lookup() may use it unconditionally.
Let's add a rtnl handler for dellink, which will never remove the FB tunnel (we
let ip6gre_destroy_tunnels() do the job).
Introduced by commit c12b395a4664 ("gre: Support GRE over IPv6").
CC: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions