M_NETGRAPH_L2TP
priv = malloc(sizeof(*priv), M_NETGRAPH_L2TP, M_WAITOK | M_ZERO);
M_NETGRAPH_L2TP, M_NOWAIT | M_ZERO);
static MALLOC_DEFINE(M_NETGRAPH_L2TP, "netgraph_l2tp", "netgraph l2tp node");
free(priv, M_NETGRAPH_L2TP);
free(hpriv, M_NETGRAPH_L2TP);