Function if_setinitfn

freebsd/net/if.c:4499–4503

}

void
if_setinitfn(if_t ifp, void (*init_fn)(void *))
{
	((struct ifnet *)ifp)->if_init = init_fn;
}

void
if_setioctlfn(if_t ifp, int (*ioctl_fn)(if_t, u_long, caddr_t))