bpf/prog_tests/cgroup_link.c

43 	int i = 0, err, prog_fd;
51 	err = setup_cgroup_environment();
52 	if (CHECK(err, "cg_init", "failed: %d\n", err))
61 	err = join_cgroup(cgs[last_cg].path);
62 	if (CHECK(err, "cg_join", "fail: %d\n", err))
75 	err = bpf_prog_query(cgs[0].fd, BPF_CGROUP_INET_EGRESS,
77 	CHECK_FAIL(err);
83 	err = bpf_prog_query(cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS,
86 	CHECK_FAIL(err);
92 	err = bpf_prog_query(cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS,
95 	CHECK_FAIL(err);
112 	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
114 	if (CHECK(err, "cg_attach_legacy", "errno=%d\n", errno))
130 	err = bpf_prog_detach2(prog_fd, cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS);
131 	if (CHECK(err, "cg_detach_legacy", "errno=%d\n", errno))
136 	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
138 	if (CHECK(err, "cg_attach_exclusive", "errno=%d\n", errno))
153 	err = bpf_prog_detach2(prog_fd, cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS);
154 	if (CHECK(err, "cg_detach_legacy", "errno=%d\n", errno))
169 	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
171 	if (CHECK(!err, "cg_attach_exclusive", "unexpected success")) {
178 		err = bpf_link__update_program(links[i], skel->progs.egress_alt);
179 		if (CHECK(err, "prog_upd", "link #%d\n", i))
188 	err = bpf_link_update(bpf_link__fd(links[0]),
191 	if (CHECK(err == 0 || errno != EPERM, "prog_cmpxchg1",
192 		  "unexpectedly succeeded, err %d, errno %d\n", err, -errno))
198 	err = bpf_link_update(bpf_link__fd(links[0]),
201 	if (CHECK(err, "prog_cmpxchg2", "errno %d\n", -errno))
222 	err = bpf_link__detach(links[0]);
223 	if (CHECK(err, "link_detach", "failed %d\n", err))