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etcdserver: don't attempt to grant nil permission to a role

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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>
This commit is contained in:
J. David Lowe
2021-06-04 13:59:01 -07:00
committed by Gyuho Lee
parent abe57c1aed
commit e27effa250
4 changed files with 25 additions and 0 deletions
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1
server/etcdserver/api/v3rpc/util.go
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@@ -77,6 +77,7 @@ var toGRPCErrorMap = map[error]error{
auth.ErrRoleNotFound: rpctypes.ErrGRPCRoleNotFound,
auth.ErrRoleEmpty: rpctypes.ErrGRPCRoleEmpty,
auth.ErrAuthFailed: rpctypes.ErrGRPCAuthFailed,
auth.ErrPermissionNotGiven: rpctypes.ErrGRPCPermissionNotGiven,
auth.ErrPermissionDenied: rpctypes.ErrGRPCPermissionDenied,
auth.ErrRoleNotGranted: rpctypes.ErrGRPCRoleNotGranted,
auth.ErrPermissionNotGranted: rpctypes.ErrGRPCPermissionNotGranted,