filterset_free
filterset_free(&r->set);
filterset_free(&vpn->export);
filterset_free(&vpn->import);
void filterset_free(struct filter_set_head *);
filterset_free(&f->attrset);
filterset_free(&vpn->export);
filterset_free(&vpn->import);
filterset_free(&xf->attrset);
filterset_free(&n->net.attrset);
filterset_free(&xn->net.attrset);
filterset_free($4);
filterset_free($4);
filterset_free($5);
filterset_free($5);
filterset_free($4);
filterset_free(&r->set);