pru_rcvoob
error = pru_rcvoob(so, m, flags & MSG_PEEK);
.pru_rcvoob = tcp_rcvoob,
.pru_rcvoob = tcp_rcvoob,
if (so->so_proto->pr_usrreqs->pru_rcvoob)
return (*so->so_proto->pr_usrreqs->pru_rcvoob)(so, m, flags);
int (*pru_rcvoob)(struct socket *, struct mbuf *, int);