Function if_clone_destroy

freebsd/net/if_clone.c:257–298

* Lookup and destroy a clone network interface. */

 * Lookup and destroy a clone network interface.
 */
int
if_clone_destroy(const char *name)
{
	int err;
	struct if_clone *ifc;
	struct ifnet *ifp;

	ifp = ifunit_ref(name);
	if (ifp == NULL)
		return (ENXIO);

	/* Find the cloner for this interface */
	IF_CLONERS_LOCK();
	LIST_FOREACH(ifc, &V_if_cloners, ifc_list) {
		if (strcmp(ifc->ifc_name, ifp->if_dname) == 0) {
			break;
		}
	}
#ifdef VIMAGE
	if (ifc == NULL && !IS_DEFAULT_VNET(curvnet)) {
		CURVNET_SET_QUIET(vnet0);
		LIST_FOREACH(ifc, &V_if_cloners, ifc_list)
			if (ifc->ifc_type == SIMPLE) {
				if (ifc_simple_match(ifc, name))
					break;
			} else {
				if (ifc->ifc_match(ifc, name))
					break;
			}
		CURVNET_RESTORE();
	}
#endif
	IF_CLONERS_UNLOCK();
	if (ifc == NULL) {
		if_rele(ifp);
		return (EINVAL);
	}

	err = if_clone_destroyif(ifc, ifp);
	if_rele(ifp);
	return err;
}

/*
 * Destroy a clone network interface.