[PATCH net-next] tools: ynl: add uns-admin-perm to genetlink

[Antonio Quartulli <antonio@openvpn.net>]

GENL_UNS_ADMIN_PERM may be required by protocols using
the `genetlink` family, however, this flag is currently
only allowed in `genetlink-legacy`.

Add it to the list of possible values in genetlink.yaml too.

Cc: Simon Horman <horms@kernel.org>
Cc: Donald Hunter <donald.hunter@gmail.com>
Link: https://github.com/OpenVPN/ovpn-net-next/issues/33
Suggested-by: Ralf Lici <ralf@mandelbit.com>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
---

As described in the linked GH issue, we hit an issue with OpenVPN
running in a user namespace that was unable to send netlink
messages to the ovpn kernel module.

After checking how other modules handles this, we saw that we
required the uns-admin-perm cmd-flag. However, this flag is allowed
only for genetlink-legacy protocols, which ovpn is not.

I don't see a clear reason why genetlink shouldn't have this flag too,
hence I am proposing this patch.


 Documentation/netlink/genetlink.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/netlink/genetlink.yaml b/Documentation/netlink/genetlink.yaml
index b020a537d8ac..a1194d5d93fc 100644
--- a/Documentation/netlink/genetlink.yaml
+++ b/Documentation/netlink/genetlink.yaml
@@ -262,7 +262,7 @@ properties:
               description: Command flags.
               type: array
               items:
-                enum: [ admin-perm ]
+                enum: [ admin-perm, uns-admin-perm ]
             dont-validate:
               description: Kernel attribute validation flags.
               type: array
-- 
2.52.0