J. David Lowe e27effa250 etcdserver: don't attempt to grant nil permission to a role
Prevent etcd from crashing when given a bad grant payload, e.g.:

$ curl -d '{"name": "foo"}' http://localhost:2379/v3/auth/role/add
{"header":{"cluster_id":"14841639068965178418", ...
$ curl -d '{"name": "foo"}' http://localhost:2379/v3/auth/role/grant
curl: (52) Empty reply from server

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
2021-06-04 15:34:22 -07:00
..
2020-10-26 13:02:32 +01:00