435 static int attach_point_to_config(struct bpf_tc_hook *hook,  in attach_point_to_config()  argument
438 	switch (OPTS_GET(hook, attach_point, 0)) {  in attach_point_to_config()
442 		if (OPTS_GET(hook, parent, 0))  in attach_point_to_config()
475 static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)  in tc_qdisc_modify()  argument
481 	ret = attach_point_to_config(hook, &config);  in tc_qdisc_modify()
490 	req.tc.tcm_ifindex = OPTS_GET(hook, ifindex, 0);  in tc_qdisc_modify()
499 static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)  in tc_qdisc_create_excl()  argument
501 	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);  in tc_qdisc_create_excl()
504 static int tc_qdisc_delete(struct bpf_tc_hook *hook)  in tc_qdisc_delete()  argument
506 	return tc_qdisc_modify(hook, RTM_DELQDISC, 0);  in tc_qdisc_delete()
509 int bpf_tc_hook_create(struct bpf_tc_hook *hook)  in bpf_tc_hook_create()  argument
513 	if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_hook_create()
514 	    OPTS_GET(hook, ifindex, 0) <= 0)  in bpf_tc_hook_create()
517 	ret = tc_qdisc_create_excl(hook);  in bpf_tc_hook_create()
521 static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
525 int bpf_tc_hook_destroy(struct bpf_tc_hook *hook)  in bpf_tc_hook_destroy()  argument
527 	if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_hook_destroy()
528 	    OPTS_GET(hook, ifindex, 0) <= 0)  in bpf_tc_hook_destroy()
531 	switch (OPTS_GET(hook, attach_point, 0)) {  in bpf_tc_hook_destroy()
534 		return libbpf_err(__bpf_tc_detach(hook, NULL, true));  in bpf_tc_hook_destroy()
536 		return libbpf_err(tc_qdisc_delete(hook));  in bpf_tc_hook_destroy()
611 int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)  in bpf_tc_attach()  argument
619 	if (!hook || !opts ||  in bpf_tc_attach()
620 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_attach()
624 	ifindex      = OPTS_GET(hook, ifindex, 0);  in bpf_tc_attach()
625 	parent       = OPTS_GET(hook, parent, 0);  in bpf_tc_attach()
626 	attach_point = OPTS_GET(hook, attach_point, 0);  in bpf_tc_attach()
684 static int __bpf_tc_detach(const struct bpf_tc_hook *hook,  in __bpf_tc_detach()  argument
692 	if (!hook ||  in __bpf_tc_detach()
693 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in __bpf_tc_detach()
697 	ifindex      = OPTS_GET(hook, ifindex, 0);  in __bpf_tc_detach()
698 	parent       = OPTS_GET(hook, parent, 0);  in __bpf_tc_detach()
699 	attach_point = OPTS_GET(hook, attach_point, 0);  in __bpf_tc_detach()
745 int bpf_tc_detach(const struct bpf_tc_hook *hook,  in bpf_tc_detach()  argument
753 	ret = __bpf_tc_detach(hook, opts, false);  in bpf_tc_detach()
757 int bpf_tc_query(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)  in bpf_tc_query()  argument
764 	if (!hook || !opts ||  in bpf_tc_query()
765 	    !OPTS_VALID(hook, bpf_tc_hook) ||  in bpf_tc_query()
769 	ifindex      = OPTS_GET(hook, ifindex, 0);  in bpf_tc_query()
770 	parent       = OPTS_GET(hook, parent, 0);  in bpf_tc_query()
771 	attach_point = OPTS_GET(hook, attach_point, 0);  in bpf_tc_query()