1 files changed, 8 insertions, 1 deletions

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 094747a1227c..6d7d8c02c197 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -358,6 +358,7 @@ static struct rpc_program cb_program = {
                 .nrvers         = ARRAY_SIZE(nfs_cb_version),
                 .version        = nfs_cb_version,
                 .stats          = &cb_stats,
+                .pipe_dir_name  = "/nfsd4_cb",
 };
 
 /* Reference counting, callback cleanup, etc., all look racy as heck.
@@ -382,8 +383,9 @@ static int do_probe_callback(void *data)
                 .program        = &cb_program,
                 .prognumber     = cb->cb_prog,
                 .version        = nfs_cb_version[1]->number,
-                .authflavor     = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
+                .authflavor     = clp->cl_flavor,
                 .flags          = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
+                .client_name    = clp->cl_principal,
         };
         struct rpc_message msg = {
                 .rpc_proc       = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
@@ -392,6 +394,11 @@ static int do_probe_callback(void *data)
         struct rpc_clnt *client;
         int status;
 
+        if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5)) {
+                status = nfserr_cb_path_down;
+                goto out_err;
+        }
+
         /* Initialize address */
         memset(&addr, 0, sizeof(addr));
         addr.sin_family = AF_INET;