1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) 2023 Paulson Raja L <paulson@zilogic.com> 4f08c3bdfSopenharmony_ci */ 5f08c3bdfSopenharmony_ci 6f08c3bdfSopenharmony_ci/*\ 7f08c3bdfSopenharmony_ci * [Description] 8f08c3bdfSopenharmony_ci * 9f08c3bdfSopenharmony_ci * Test mmap(2) with MAP_SHARED_VALIDATE flag. 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * Test expected EOPNOTSUPP errno when testing mmap(2) with MAP_SHARED_VALIDATE 12f08c3bdfSopenharmony_ci * flag and invalid flag. 13f08c3bdfSopenharmony_ci */ 14f08c3bdfSopenharmony_ci 15f08c3bdfSopenharmony_ci#include <errno.h> 16f08c3bdfSopenharmony_ci#include <stdio.h> 17f08c3bdfSopenharmony_ci#include <sys/types.h> 18f08c3bdfSopenharmony_ci#include "tst_test.h" 19f08c3bdfSopenharmony_ci#include "lapi/mmap.h" 20f08c3bdfSopenharmony_ci 21f08c3bdfSopenharmony_ci#define TEST_FILE "file_to_mmap" 22f08c3bdfSopenharmony_ci#define TEST_FILE_SIZE 1024 23f08c3bdfSopenharmony_ci#define INVALID_FLAG (1 << 10) 24f08c3bdfSopenharmony_ci 25f08c3bdfSopenharmony_cistatic int fd = -1; 26f08c3bdfSopenharmony_cistatic void *addr; 27f08c3bdfSopenharmony_ci 28f08c3bdfSopenharmony_cistatic void setup(void) 29f08c3bdfSopenharmony_ci{ 30f08c3bdfSopenharmony_ci fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0600); 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_ci if (tst_fill_file(TEST_FILE, 'a', TEST_FILE_SIZE, 1)) 33f08c3bdfSopenharmony_ci tst_brk(TBROK, "Could not fill the testfile"); 34f08c3bdfSopenharmony_ci} 35f08c3bdfSopenharmony_ci 36f08c3bdfSopenharmony_cistatic void cleanup(void) 37f08c3bdfSopenharmony_ci{ 38f08c3bdfSopenharmony_ci if (fd > -1) 39f08c3bdfSopenharmony_ci SAFE_CLOSE(fd); 40f08c3bdfSopenharmony_ci 41f08c3bdfSopenharmony_ci if (addr && addr != MAP_FAILED) 42f08c3bdfSopenharmony_ci SAFE_MUNMAP(addr, TEST_FILE_SIZE); 43f08c3bdfSopenharmony_ci} 44f08c3bdfSopenharmony_ci 45f08c3bdfSopenharmony_cistatic void test_mmap(void) 46f08c3bdfSopenharmony_ci{ 47f08c3bdfSopenharmony_ci addr = mmap(NULL, TEST_FILE_SIZE, PROT_READ | PROT_WRITE, 48f08c3bdfSopenharmony_ci INVALID_FLAG | MAP_SHARED_VALIDATE, fd, 0); 49f08c3bdfSopenharmony_ci 50f08c3bdfSopenharmony_ci if (addr != MAP_FAILED) 51f08c3bdfSopenharmony_ci tst_res(TFAIL | TERRNO, "mmap() is successful, but it should have failed"); 52f08c3bdfSopenharmony_ci else if (errno == EOPNOTSUPP) 53f08c3bdfSopenharmony_ci tst_res(TPASS, "mmap() failed with errno set to EOPNOTSUPP"); 54f08c3bdfSopenharmony_ci else 55f08c3bdfSopenharmony_ci tst_res(TFAIL | TERRNO, "mmap() failed with unexpected error"); 56f08c3bdfSopenharmony_ci} 57f08c3bdfSopenharmony_ci 58f08c3bdfSopenharmony_cistatic struct tst_test test = { 59f08c3bdfSopenharmony_ci .min_kver = "4.15", 60f08c3bdfSopenharmony_ci .setup = setup, 61f08c3bdfSopenharmony_ci .cleanup = cleanup, 62f08c3bdfSopenharmony_ci .test_all = test_mmap, 63f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 64f08c3bdfSopenharmony_ci}; 65