diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2021-10-11 14:12:35 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-12 11:27:47 +0100 |
| commit | e4400bbf5b15750e1b59bf4722d18d99be60c69f (patch) | |
| tree | 48e380c5f2b58ac2eb0cd75667c17def9cca802c /drivers | |
| parent | 7bb39a394490c0690dc7304f2f0345539d590d2b (diff) | |
net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE
The NTF_EXT_LEARNED neigh flag is usually propagated back to user space
upon dump of the neighbor table. However, when used in combination with
NTF_USE flag this is not the case despite exempting the entry from the
garbage collector. This results in inconsistent state since entries are
typically marked in neigh->flags with NTF_EXT_LEARNED, but here they are
not. Fix it by propagating the creation flag to ___neigh_create().
Before fix:
# ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
# ./ip/ip n
192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
[...]
After fix:
# ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
# ./ip/ip n
192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn REACHABLE
[...]
Fixes: 9ce33e46531d ("neighbour: support for NTF_EXT_LEARNED flag")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions