C_PROTOCOL_ERROR
case C_PROTOCOL_ERROR:
conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD);
conn_request_state(peer_device->connection, NS2(conn, C_PROTOCOL_ERROR, susp, 0), CS_HARD);
conn_request_state(peer_device->connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD);
conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD);
case C_PROTOCOL_ERROR:
[C_PROTOCOL_ERROR] = "ProtocolError",