diff options
| author | Benjamin Poirier <bpoirier@nvidia.com> | 2021-11-29 15:15:05 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-08 09:01:12 +0100 |
| commit | f70c6281eafb3e64c967e96a37f72edb46f14da9 (patch) | |
| tree | 7faff9e2ac9bd282ad714e94dd4325c194b0b112 /lib | |
| parent | bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f (diff) | |
net: mpls: Fix notifications when deleting a device
commit 7d4741eacdefa5f0475431645b56baf00784df1f upstream.
There are various problems related to netlink notifications for mpls route
changes in response to interfaces being deleted:
* delete interface of only nexthop
DELROUTE notification is missing RTA_OIF attribute
* delete interface of non-last nexthop
NEWROUTE notification is missing entirely
* delete interface of last nexthop
DELROUTE notification is missing nexthop
All of these problems stem from the fact that existing routes are modified
in-place before sending a notification. Restructure mpls_ifdown() to avoid
changing the route in the DELROUTE cases and to create a copy in the
NEWROUTE case.
Fixes: f8efb73c97e2 ("mpls: multipath route support")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions