1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "it_test_vm.h"
32
Testcase(void)33 static int Testcase(void)
34 {
35 char *p = NULL;
36 int pageSize;
37 int ret;
38
39 pageSize = getpagesize();
40
41 ret = mprotect(0, pageSize, PROT_NONE);
42 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
43 ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
44
45 ret = mprotect(0, pageSize, 0xffff);
46 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
47 ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
48
49 ret = mprotect((void *)0x1000, pageSize, PROT_READ | PROT_WRITE);
50 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
51 ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
52
53 ret = mprotect((void *)0xffffff, pageSize, PROT_READ | PROT_WRITE);
54 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
55 ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
56
57 p = (char *)mmap(NULL, pageSize * 3, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
58 ICUNIT_ASSERT_NOT_EQUAL(p, MAP_FAILED, p);
59
60 ret = mprotect(p, pageSize * 4, PROT_READ | PROT_WRITE);
61 ICUNIT_ASSERT_EQUAL(ret, -1, ret);
62 ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
63
64 ret = mprotect(p, pageSize, PROT_READ | PROT_WRITE);
65 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
66 (void)memset_s(p, pageSize, 0xf, pageSize);
67
68 ret = mprotect(p + pageSize * 2, pageSize, PROT_READ | PROT_WRITE);
69 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
70 (void)memset_s(p + pageSize * 2, pageSize, 0xf, pageSize);
71
72 ret = munmap(p, pageSize);
73 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
74
75 return 0;
76 }
77
ItTestMprotect001(void)78 void ItTestMprotect001(void)
79 {
80 TEST_ADD_CASE("IT_MEM_MPROTECT_001", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
81 }
82