1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) Crackerjack Project., 2007 4f08c3bdfSopenharmony_ci * Ported from Crackerjack to LTP by Manas Kumar Nayak maknayak@in.ibm.com> 5f08c3bdfSopenharmony_ci */ 6f08c3bdfSopenharmony_ci 7f08c3bdfSopenharmony_ci/*\ 8f08c3bdfSopenharmony_ci * [Description] 9f08c3bdfSopenharmony_ci * 10f08c3bdfSopenharmony_ci * Basic tests for the unshare(2) errors. 11f08c3bdfSopenharmony_ci * 12f08c3bdfSopenharmony_ci * - EINVAL on invalid flags 13f08c3bdfSopenharmony_ci * - EPERM when process is missing required privileges 14f08c3bdfSopenharmony_ci */ 15f08c3bdfSopenharmony_ci 16f08c3bdfSopenharmony_ci#define _GNU_SOURCE 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#include <stdio.h> 19f08c3bdfSopenharmony_ci#include <sys/wait.h> 20f08c3bdfSopenharmony_ci#include <sys/types.h> 21f08c3bdfSopenharmony_ci#include <sys/param.h> 22f08c3bdfSopenharmony_ci#include <sys/syscall.h> 23f08c3bdfSopenharmony_ci#include <sched.h> 24f08c3bdfSopenharmony_ci#include <limits.h> 25f08c3bdfSopenharmony_ci#include <unistd.h> 26f08c3bdfSopenharmony_ci#include <pwd.h> 27f08c3bdfSopenharmony_ci 28f08c3bdfSopenharmony_ci#include "tst_test.h" 29f08c3bdfSopenharmony_ci#include "config.h" 30f08c3bdfSopenharmony_ci 31f08c3bdfSopenharmony_ci#ifdef HAVE_UNSHARE 32f08c3bdfSopenharmony_ci 33f08c3bdfSopenharmony_cistatic uid_t nobody_uid; 34f08c3bdfSopenharmony_ci 35f08c3bdfSopenharmony_cistatic struct test_case_t { 36f08c3bdfSopenharmony_ci int mode; 37f08c3bdfSopenharmony_ci int expected_error; 38f08c3bdfSopenharmony_ci const char *desc; 39f08c3bdfSopenharmony_ci} tc[] = { 40f08c3bdfSopenharmony_ci {-1, EINVAL, "-1"}, 41f08c3bdfSopenharmony_ci {CLONE_NEWNS, EPERM, "CLONE_NEWNS"} 42f08c3bdfSopenharmony_ci}; 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_cistatic void run(unsigned int i) 45f08c3bdfSopenharmony_ci{ 46f08c3bdfSopenharmony_ci pid_t pid = SAFE_FORK(); 47f08c3bdfSopenharmony_ci if (pid == 0) { 48f08c3bdfSopenharmony_ci if (tc[i].expected_error == EPERM) 49f08c3bdfSopenharmony_ci SAFE_SETUID(nobody_uid); 50f08c3bdfSopenharmony_ci 51f08c3bdfSopenharmony_ci TST_EXP_FAIL(unshare(tc[i].mode), tc[i].expected_error, 52f08c3bdfSopenharmony_ci "unshare(%s)", tc[i].desc); 53f08c3bdfSopenharmony_ci } 54f08c3bdfSopenharmony_ci} 55f08c3bdfSopenharmony_ci 56f08c3bdfSopenharmony_cistatic void setup(void) 57f08c3bdfSopenharmony_ci{ 58f08c3bdfSopenharmony_ci struct passwd *ltpuser = SAFE_GETPWNAM("nobody"); 59f08c3bdfSopenharmony_ci nobody_uid = ltpuser->pw_uid; 60f08c3bdfSopenharmony_ci} 61f08c3bdfSopenharmony_ci 62f08c3bdfSopenharmony_cistatic struct tst_test test = { 63f08c3bdfSopenharmony_ci .tcnt = ARRAY_SIZE(tc), 64f08c3bdfSopenharmony_ci .forks_child = 1, 65f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 66f08c3bdfSopenharmony_ci .needs_root = 1, 67f08c3bdfSopenharmony_ci .setup = setup, 68f08c3bdfSopenharmony_ci .test = run, 69f08c3bdfSopenharmony_ci}; 70f08c3bdfSopenharmony_ci 71f08c3bdfSopenharmony_ci#else 72f08c3bdfSopenharmony_ciTST_TEST_TCONF("unshare is undefined."); 73f08c3bdfSopenharmony_ci#endif 74