Set unicode flag on cifs echo request to avoid Mac error

Mac requires the unicode flag to be set for cifs, even for the smb echo request (which doesn't have strings). Without this Mac rejects the periodic echo requests (when mounting with cifs) that we use to check if server is down Signed-off-by: Steve French <[email protected]> CC: Stable <[email protected]>
coreos · May 2, 2017 · 26c9cb6 · 26c9cb6
1 parent c610c4b
commit 26c9cb6
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
@@ -718,6 +718,9 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
 	if (rc)
 		return rc;
 
+	if (server->capabilities & CAP_UNICODE)
+		smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
 	/* set up echo request */
 	smb->hdr.Tid = 0xffff;
 	smb->hdr.WordCount = 1;