Function vxlan_teardown_locked

freebsd/net/if_vxlan.c:1790–1834

}

static void
vxlan_teardown_locked(struct vxlan_softc *sc)
{
	struct ifnet *ifp;
	struct vxlan_socket *vso;

	sx_assert(&vxlan_sx, SA_XLOCKED);
	VXLAN_LOCK_WASSERT(sc);
	MPASS(sc->vxl_flags & VXLAN_FLAG_TEARDOWN);

	ifp = sc->vxl_ifp;
	ifp->if_flags &= ~IFF_UP;
	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
	callout_stop(&sc->vxl_callout);
	vso = sc->vxl_sock;
	sc->vxl_sock = NULL;

	VXLAN_WUNLOCK(sc);
	if_link_state_change(ifp, LINK_STATE_DOWN);
	EVENTHANDLER_INVOKE(vxlan_stop, ifp, sc->vxl_src_addr.in4.sin_family,
	    ntohs(sc->vxl_src_addr.in4.sin_port));

	if (vso != NULL) {
		vxlan_socket_remove_softc(vso, sc);

		if (sc->vxl_vso_mc_index != -1) {
			vxlan_socket_mc_release_group_by_idx(vso,
			    sc->vxl_vso_mc_index);
			sc->vxl_vso_mc_index = -1;
		}
	}

	VXLAN_WLOCK(sc);
	while (sc->vxl_refcnt != 0)
		rm_sleep(sc, &sc->vxl_lock, 0, "vxldrn", hz);
	VXLAN_WUNLOCK(sc);

	callout_drain(&sc->vxl_callout);

	vxlan_free_multicast(sc);
	if (vso != NULL)
		vxlan_socket_release(vso);

	vxlan_teardown_complete(sc);
}

static void
vxlan_teardown(struct vxlan_softc *sc)