1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) 2017 FUJITSU LIMITED. All rights reserved. 4f08c3bdfSopenharmony_ci * Author: Xiao Yang <yangx.jy@cn.fujitsu.com> 5f08c3bdfSopenharmony_ci */ 6f08c3bdfSopenharmony_ci 7f08c3bdfSopenharmony_ci/* 8f08c3bdfSopenharmony_ci * Test for EFAULT when rlim points outside the accessible address space. 9f08c3bdfSopenharmony_ci */ 10f08c3bdfSopenharmony_ci 11f08c3bdfSopenharmony_ci#define _GNU_SOURCE 12f08c3bdfSopenharmony_ci#include <errno.h> 13f08c3bdfSopenharmony_ci#include <sys/resource.h> 14f08c3bdfSopenharmony_ci#include <sys/time.h> 15f08c3bdfSopenharmony_ci#include <sys/wait.h> 16f08c3bdfSopenharmony_ci#include <stdlib.h> 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#include "tst_test.h" 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_cistatic void *bad_addr; 21f08c3bdfSopenharmony_ci 22f08c3bdfSopenharmony_cistatic void verify_setrlimit(void) 23f08c3bdfSopenharmony_ci{ 24f08c3bdfSopenharmony_ci int status; 25f08c3bdfSopenharmony_ci pid_t pid; 26f08c3bdfSopenharmony_ci 27f08c3bdfSopenharmony_ci pid = SAFE_FORK(); 28f08c3bdfSopenharmony_ci if (!pid) { 29f08c3bdfSopenharmony_ci TEST(setrlimit(RLIMIT_NOFILE, bad_addr)); 30f08c3bdfSopenharmony_ci if (TST_RET != -1) { 31f08c3bdfSopenharmony_ci tst_res(TFAIL, "setrlimit() succeeded unexpectedly"); 32f08c3bdfSopenharmony_ci exit(0); 33f08c3bdfSopenharmony_ci } 34f08c3bdfSopenharmony_ci 35f08c3bdfSopenharmony_ci /* Usually, setrlimit() should return EFAULT */ 36f08c3bdfSopenharmony_ci if (TST_ERR == EFAULT) { 37f08c3bdfSopenharmony_ci tst_res(TPASS | TTERRNO, 38f08c3bdfSopenharmony_ci "setrlimit() failed as expected"); 39f08c3bdfSopenharmony_ci } else { 40f08c3bdfSopenharmony_ci tst_res(TFAIL | TTERRNO, 41f08c3bdfSopenharmony_ci "setrlimit() should fail with EFAULT, got"); 42f08c3bdfSopenharmony_ci } 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_ci exit(0); 45f08c3bdfSopenharmony_ci } 46f08c3bdfSopenharmony_ci 47f08c3bdfSopenharmony_ci SAFE_WAITPID(pid, &status, 0); 48f08c3bdfSopenharmony_ci 49f08c3bdfSopenharmony_ci /* If glibc has to convert between 32bit and 64bit struct rlimit 50f08c3bdfSopenharmony_ci * in some cases, it is possible to get SegFault. 51f08c3bdfSopenharmony_ci */ 52f08c3bdfSopenharmony_ci if (WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV) { 53f08c3bdfSopenharmony_ci tst_res(TPASS, "setrlimit() caused SIGSEGV"); 54f08c3bdfSopenharmony_ci return; 55f08c3bdfSopenharmony_ci } 56f08c3bdfSopenharmony_ci 57f08c3bdfSopenharmony_ci if (WIFEXITED(status) && WEXITSTATUS(status) == 0) 58f08c3bdfSopenharmony_ci return; 59f08c3bdfSopenharmony_ci 60f08c3bdfSopenharmony_ci tst_res(TFAIL, "child %s", tst_strstatus(status)); 61f08c3bdfSopenharmony_ci} 62f08c3bdfSopenharmony_ci 63f08c3bdfSopenharmony_cistatic void setup(void) 64f08c3bdfSopenharmony_ci{ 65f08c3bdfSopenharmony_ci bad_addr = tst_get_bad_addr(NULL); 66f08c3bdfSopenharmony_ci} 67f08c3bdfSopenharmony_ci 68f08c3bdfSopenharmony_cistatic struct tst_test test = { 69f08c3bdfSopenharmony_ci .test_all = verify_setrlimit, 70f08c3bdfSopenharmony_ci .forks_child = 1, 71f08c3bdfSopenharmony_ci .setup = setup, 72f08c3bdfSopenharmony_ci}; 73