| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ |
| |
| #define _GNU_SOURCE |
| #include <cgroup_helpers.h> |
| #include <test_progs.h> |
| |
| #include "cgrp_kfunc_failure.skel.h" |
| #include "cgrp_kfunc_success.skel.h" |
| |
| static struct cgrp_kfunc_success *open_load_cgrp_kfunc_skel(void) |
| { |
| struct cgrp_kfunc_success *skel; |
| int err; |
| |
| skel = cgrp_kfunc_success__open(); |
| if (!ASSERT_OK_PTR(skel, "skel_open")) |
| return NULL; |
| |
| skel->bss->pid = getpid(); |
| |
| err = cgrp_kfunc_success__load(skel); |
| if (!ASSERT_OK(err, "skel_load")) |
| goto cleanup; |
| |
| return skel; |
| |
| cleanup: |
| cgrp_kfunc_success__destroy(skel); |
| return NULL; |
| } |
| |
| static int mkdir_rm_test_dir(void) |
| { |
| int fd; |
| const char *cgrp_path = "cgrp_kfunc"; |
| |
| fd = create_and_get_cgroup(cgrp_path); |
| if (!ASSERT_GT(fd, 0, "mkdir_cgrp_fd")) |
| return -1; |
| |
| close(fd); |
| remove_cgroup(cgrp_path); |
| |
| return 0; |
| } |
| |
| static void run_success_test(const char *prog_name) |
| { |
| struct cgrp_kfunc_success *skel; |
| struct bpf_program *prog; |
| struct bpf_link *link = NULL; |
| |
| skel = open_load_cgrp_kfunc_skel(); |
| if (!ASSERT_OK_PTR(skel, "open_load_skel")) |
| return; |
| |
| if (!ASSERT_OK(skel->bss->err, "pre_mkdir_err")) |
| goto cleanup; |
| |
| prog = bpf_object__find_program_by_name(skel->obj, prog_name); |
| if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name")) |
| goto cleanup; |
| |
| link = bpf_program__attach(prog); |
| if (!ASSERT_OK_PTR(link, "attached_link")) |
| goto cleanup; |
| |
| ASSERT_EQ(skel->bss->invocations, 0, "pre_rmdir_count"); |
| if (!ASSERT_OK(mkdir_rm_test_dir(), "cgrp_mkdir")) |
| goto cleanup; |
| |
| ASSERT_EQ(skel->bss->invocations, 1, "post_rmdir_count"); |
| ASSERT_OK(skel->bss->err, "post_rmdir_err"); |
| |
| cleanup: |
| bpf_link__destroy(link); |
| cgrp_kfunc_success__destroy(skel); |
| } |
| |
| static const char * const success_tests[] = { |
| "test_cgrp_acquire_release_argument", |
| "test_cgrp_acquire_leave_in_map", |
| "test_cgrp_xchg_release", |
| "test_cgrp_get_release", |
| "test_cgrp_get_ancestors", |
| }; |
| |
| void test_cgrp_kfunc(void) |
| { |
| int i, err; |
| |
| err = setup_cgroup_environment(); |
| if (!ASSERT_OK(err, "cgrp_env_setup")) |
| goto cleanup; |
| |
| for (i = 0; i < ARRAY_SIZE(success_tests); i++) { |
| if (!test__start_subtest(success_tests[i])) |
| continue; |
| |
| run_success_test(success_tests[i]); |
| } |
| |
| RUN_TESTS(cgrp_kfunc_failure); |
| |
| cleanup: |
| cleanup_cgroup_environment(); |
| } |