1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2023 Bytedance */ 3 4 #include <sys/syscall.h> 5 #include <test_progs.h> 6 #include <cgroup_helpers.h> 7 #include "test_task_under_cgroup.skel.h" 8 9 #define FOO "/foo" 10 11 void test_task_under_cgroup(void) 12 { 13 struct test_task_under_cgroup *skel; 14 int ret, foo; 15 pid_t pid; 16 17 foo = test__join_cgroup(FOO); 18 if (!ASSERT_OK(foo < 0, "cgroup_join_foo")) 19 return; 20 21 skel = test_task_under_cgroup__open(); 22 if (!ASSERT_OK_PTR(skel, "test_task_under_cgroup__open")) 23 goto cleanup; 24 25 skel->rodata->local_pid = getpid(); 26 skel->bss->remote_pid = getpid(); 27 skel->rodata->cgid = get_cgroup_id(FOO); 28 29 ret = test_task_under_cgroup__load(skel); 30 if (!ASSERT_OK(ret, "test_task_under_cgroup__load")) 31 goto cleanup; 32 33 ret = test_task_under_cgroup__attach(skel); 34 if (!ASSERT_OK(ret, "test_task_under_cgroup__attach")) 35 goto cleanup; 36 37 pid = fork(); 38 if (pid == 0) 39 exit(0); 40 41 ret = (pid == -1); 42 if (ASSERT_OK(ret, "fork process")) 43 wait(NULL); 44 45 test_task_under_cgroup__detach(skel); 46 47 ASSERT_NEQ(skel->bss->remote_pid, skel->rodata->local_pid, 48 "test task_under_cgroup"); 49 50 cleanup: 51 test_task_under_cgroup__destroy(skel); 52 close(foo); 53 } 54