// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ #define _GNU_SOURCE #include <sys/wait.h> #include <test_progs.h> #include <unistd.h> #include "task_kfunc_failure.skel.h" #include "task_kfunc_success.skel.h" static struct task_kfunc_success *open_load_task_kfunc_skel(void) { struct task_kfunc_success *skel; int err; skel = task_kfunc_success__open(); if (!ASSERT_OK_PTR(skel, "skel_open")) return NULL; skel->bss->pid = getpid(); err = task_kfunc_success__load(skel); if (!ASSERT_OK(err, "skel_load")) goto cleanup; return skel; cleanup: task_kfunc_success__destroy(skel); return NULL; } static void run_success_test(const char *prog_name) { struct task_kfunc_success *skel; int status; pid_t child_pid; struct bpf_program *prog; struct bpf_link *link = NULL; skel = open_load_task_kfunc_skel(); if (!ASSERT_OK_PTR(skel, "open_load_skel")) return; if (!ASSERT_OK(skel->bss->err, "pre_spawn_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; child_pid = fork(); if (!ASSERT_GT(child_pid, -1, "child_pid")) goto cleanup; if (child_pid == 0) _exit(0); waitpid(child_pid, &status, 0); ASSERT_OK(skel->bss->err, "post_wait_err"); cleanup: bpf_link__destroy(link); task_kfunc_success__destroy(skel); } static const char * const success_tests[] = { "test_task_acquire_release_argument", "test_task_acquire_release_current", "test_task_acquire_leave_in_map", "test_task_xchg_release", "test_task_map_acquire_release", "test_task_current_acquire_release", "test_task_from_pid_arg", "test_task_from_pid_current", "test_task_from_pid_invalid", "task_kfunc_acquire_trusted_walked", "test_task_kfunc_flavor_relo", "test_task_kfunc_flavor_relo_not_found", }; void test_task_kfunc(void) { int i; 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(task_kfunc_failure); }