542 static int attach_point_to_config(struct bpf_tc_hook *hook,  in attach_point_to_config()  argument
545 	switch (OPTS_GET(hook, attach_point, 0)) {  in attach_point_to_config()
549 		if (OPTS_GET(hook, parent, 0))  in attach_point_to_config()
582 static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)  in tc_qdisc_modify()  argument
588 	ret = attach_point_to_config(hook, &config);  in tc_qdisc_modify()
597 	req.tc.tcm_ifindex = OPTS_GET(hook, ifindex, 0);  in tc_qdisc_modify()
606 static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)  in tc_qdisc_create_excl()  argument
608 	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);  in tc_qdisc_create_excl()
611 static int tc_qdisc_delete(struct bpf_tc_hook *hook)  in tc_qdisc_delete()  argument
613 	return tc_qdisc_modify(hook, RTM_DELQDISC, 0);  in tc_qdisc_delete()
616 int bpf_tc_hook_create(struct bpf_tc_hook *hook)  in bpf_tc_hook_create()  argument
620 	if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_hook_create()
621 	    OPTS_GET(hook, ifindex, 0) <= 0)  in bpf_tc_hook_create()
624 	ret = tc_qdisc_create_excl(hook);  in bpf_tc_hook_create()
628 static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
632 int bpf_tc_hook_destroy(struct bpf_tc_hook *hook)  in bpf_tc_hook_destroy()  argument
634 	if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_hook_destroy()
635 	    OPTS_GET(hook, ifindex, 0) <= 0)  in bpf_tc_hook_destroy()
638 	switch (OPTS_GET(hook, attach_point, 0)) {  in bpf_tc_hook_destroy()
641 		return libbpf_err(__bpf_tc_detach(hook, NULL, true));  in bpf_tc_hook_destroy()
643 		return libbpf_err(tc_qdisc_delete(hook));  in bpf_tc_hook_destroy()
718 int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)  in bpf_tc_attach()  argument
726 	if (!hook || !opts ||  in bpf_tc_attach()
727 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_attach()
731 	ifindex      = OPTS_GET(hook, ifindex, 0);  in bpf_tc_attach()
732 	parent       = OPTS_GET(hook, parent, 0);  in bpf_tc_attach()
733 	attach_point = OPTS_GET(hook, attach_point, 0);  in bpf_tc_attach()
792 static int __bpf_tc_detach(const struct bpf_tc_hook *hook,  in __bpf_tc_detach()  argument
800 	if (!hook ||  in __bpf_tc_detach()
801 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in __bpf_tc_detach()
805 	ifindex      = OPTS_GET(hook, ifindex, 0);  in __bpf_tc_detach()
806 	parent       = OPTS_GET(hook, parent, 0);  in __bpf_tc_detach()
807 	attach_point = OPTS_GET(hook, attach_point, 0);  in __bpf_tc_detach()
853 int bpf_tc_detach(const struct bpf_tc_hook *hook,  in bpf_tc_detach()  argument
861 	ret = __bpf_tc_detach(hook, opts, false);  in bpf_tc_detach()
865 int bpf_tc_query(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)  in bpf_tc_query()  argument
872 	if (!hook || !opts ||  in bpf_tc_query()
873 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_query()
877 	ifindex      = OPTS_GET(hook, ifindex, 0);  in bpf_tc_query()
878 	parent       = OPTS_GET(hook, parent, 0);  in bpf_tc_query()
879 	attach_point = OPTS_GET(hook, attach_point, 0);  in bpf_tc_query()