int
cbq_remove_queue(struct pf_altq *a)
{
struct rm_class *cl;
cbq_state_t *cbqp;
int i;
if ((cbqp = a->altq_disc) == NULL)
return (EINVAL);
if ((cl = clh_to_clp(cbqp, a->qid)) == NULL)
return (EINVAL);
/* if we are a parent class, then return an error. */
if (is_a_parent_class(cl))
return (EINVAL);
/* delete the class */
rmc_delete_class(&cbqp->ifnp, cl);
/*
* free the class handle
*/
for (i = 0; i < CBQ_MAX_CLASSES; i++)
if (cbqp->cbq_class_tbl[i] == cl) {
cbqp->cbq_class_tbl[i] = NULL;
if (cl == cbqp->ifnp.root_)
cbqp->ifnp.root_ = NULL;
if (cl == cbqp->ifnp.default_)
cbqp->ifnp.default_ = NULL;
break;
}
return (0);
}
/*
* bring the interface back to the initial state by discarding
* all the filters and classes except the root class.
*/
static int
hfsc_clear_interface(struct hfsc_if *hif)
{
struct hfsc_class *cl;
#ifdef ALTQ3_COMPAT
/* free the filters for this interface */
acc_discard_filters(&hif->hif_classifier, NULL, 1);
#endif
/* clear out the classes */
while (hif->hif_rootclass != NULL &&
(cl = hif->hif_rootclass->cl_children) != NULL) {
/*
* remove the first leaf class found in the hierarchy
* then start over
*/
for (; cl != NULL; cl = hfsc_nextclass(cl)) {
if (!is_a_parent_class(cl)) {
(void)hfsc_class_destroy(cl);
break;
}
}
}
return (0);
}
static int
cbq_clear_interface(cbq_state_t *cbqp)
{
int again, i;
struct rm_class *cl;
/* clear out the classes now */
do {
again = 0;
for (i = 0; i < CBQ_MAX_CLASSES; i++) {
if ((cl = cbqp->cbq_class_tbl[i]) != NULL) {
if (is_a_parent_class(cl))
again++;
else {
cbq_class_destroy(cbqp, cl);
cbqp->cbq_class_tbl[i] = NULL;
if (cl == cbqp->ifnp.root_)
cbqp->ifnp.root_ = NULL;
if (cl == cbqp->ifnp.default_)
cbqp->ifnp.default_ = NULL;
}
}
}
} while (again);
return (0);
}
static int
cbq_delete_class(struct cbq_delete_class *dcp)
{
char *ifacename;
struct rm_class *cl;
cbq_state_t *cbqp;
ifacename = dcp->cbq_iface.cbq_ifacename;
if ((cbqp = altq_lookup(ifacename, ALTQT_CBQ)) == NULL)
return (EBADF);
if ((cl = clh_to_clp(cbqp, dcp->cbq_class_handle)) == NULL)
return (EINVAL);
/* if we are a parent class, then return an error. */
if (is_a_parent_class(cl))
return (EINVAL);
/* if a filter has a reference to this class delete the filter */
acc_discard_filters(&cbqp->cbq_classifier, cl, 0);
return cbq_class_destroy(cbqp, cl);
}
static int
cbq_clear_interface(cbq_state_t *cbqp)
{
int again, i;
struct rm_class *cl;
#ifdef ALTQ3_CLFIER_COMPAT
/* free the filters for this interface */
acc_discard_filters(&cbqp->cbq_classifier, NULL, 1);
#endif
/* clear out the classes now */
do {
again = 0;
for (i = 0; i < CBQ_MAX_CLASSES; i++) {
if ((cl = cbqp->cbq_class_tbl[i]) != NULL) {
if (is_a_parent_class(cl))
again++;
else {
cbq_class_destroy(cbqp, cl);
cbqp->cbq_class_tbl[i] = NULL;
if (cl == cbqp->ifnp.root_)
cbqp->ifnp.root_ = NULL;
if (cl == cbqp->ifnp.default_)
cbqp->ifnp.default_ = NULL;
#ifdef ALTQ3_COMPAT
if (cl == cbqp->ifnp.ctl_)
cbqp->ifnp.ctl_ = NULL;
#endif
}
}
}
} while (again);
return (0);
}
