J. David Lowe cee78aca75 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>
Signed-off-by: J. David Lowe <j.david.lowe@gmail.com>
2023-04-04 21:40:54 +09:00
..
2023-02-20 12:44:14 +13:00
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