110 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */3 4#define _GNU_SOURCE5#include <cgroup_helpers.h>6#include <test_progs.h>7 8#include "cgrp_kfunc_failure.skel.h"9#include "cgrp_kfunc_success.skel.h"10 11static struct cgrp_kfunc_success *open_load_cgrp_kfunc_skel(void)12{13 struct cgrp_kfunc_success *skel;14 int err;15 16 skel = cgrp_kfunc_success__open();17 if (!ASSERT_OK_PTR(skel, "skel_open"))18 return NULL;19 20 skel->bss->pid = getpid();21 22 err = cgrp_kfunc_success__load(skel);23 if (!ASSERT_OK(err, "skel_load"))24 goto cleanup;25 26 return skel;27 28cleanup:29 cgrp_kfunc_success__destroy(skel);30 return NULL;31}32 33static int mkdir_rm_test_dir(void)34{35 int fd;36 const char *cgrp_path = "cgrp_kfunc";37 38 fd = create_and_get_cgroup(cgrp_path);39 if (!ASSERT_GT(fd, 0, "mkdir_cgrp_fd"))40 return -1;41 42 close(fd);43 remove_cgroup(cgrp_path);44 45 return 0;46}47 48static void run_success_test(const char *prog_name)49{50 struct cgrp_kfunc_success *skel;51 struct bpf_program *prog;52 struct bpf_link *link = NULL;53 54 skel = open_load_cgrp_kfunc_skel();55 if (!ASSERT_OK_PTR(skel, "open_load_skel"))56 return;57 58 if (!ASSERT_OK(skel->bss->err, "pre_mkdir_err"))59 goto cleanup;60 61 prog = bpf_object__find_program_by_name(skel->obj, prog_name);62 if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))63 goto cleanup;64 65 link = bpf_program__attach(prog);66 if (!ASSERT_OK_PTR(link, "attached_link"))67 goto cleanup;68 69 ASSERT_EQ(skel->bss->invocations, 0, "pre_rmdir_count");70 if (!ASSERT_OK(mkdir_rm_test_dir(), "cgrp_mkdir"))71 goto cleanup;72 73 ASSERT_EQ(skel->bss->invocations, 1, "post_rmdir_count");74 ASSERT_OK(skel->bss->err, "post_rmdir_err");75 76cleanup:77 bpf_link__destroy(link);78 cgrp_kfunc_success__destroy(skel);79}80 81static const char * const success_tests[] = {82 "test_cgrp_acquire_release_argument",83 "test_cgrp_acquire_leave_in_map",84 "test_cgrp_xchg_release",85 "test_cgrp_get_release",86 "test_cgrp_get_ancestors",87 "test_cgrp_from_id",88};89 90void test_cgrp_kfunc(void)91{92 int i, err;93 94 err = setup_cgroup_environment();95 if (!ASSERT_OK(err, "cgrp_env_setup"))96 goto cleanup;97 98 for (i = 0; i < ARRAY_SIZE(success_tests); i++) {99 if (!test__start_subtest(success_tests[i]))100 continue;101 102 run_success_test(success_tests[i]);103 }104 105 RUN_TESTS(cgrp_kfunc_failure);106 107cleanup:108 cleanup_cgroup_environment();109}110