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
32 #include "it_test_vm.h"
33
34 #define INVALID_PROCESS_ID 100000
35 #define MMAP_SIZE 0x1000
36 #define PARAM_INIT 0x123
37
38 /* Test PROT_NONE flag */
Testcase(void)39 static int Testcase(void)
40 {
41 int ret, param;
42 int *ptr = NULL;
43 int status = 0;
44 pid_t pid = fork();
45 ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, INVALID_PROCESS_ID, pid);
46 if (pid == 0) {
47 ptr = (int *)mmap(0, MMAP_SIZE, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
48 ICUNIT_ASSERT_NOT_EQUAL(ptr, MAP_FAILED, ptr);
49 printf("%d\n", *ptr);
50 exit(0);
51 }
52
53 ret = waitpid(pid, &status, 0);
54 ICUNIT_ASSERT_EQUAL(ret, pid, ret);
55 ret = WIFEXITED(status);
56 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
57 ret = WIFSIGNALED(status);
58 ICUNIT_ASSERT_EQUAL(ret, 1, ret);
59 ret = WTERMSIG(status);
60 ICUNIT_ASSERT_EQUAL(ret, SIGUSR2, ret);
61
62 pid = fork();
63 ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, INVALID_PROCESS_ID, pid);
64 if (pid == 0) {
65 ptr = (int *)mmap(0, MMAP_SIZE, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
66 ICUNIT_ASSERT_NOT_EQUAL(ptr, MAP_FAILED, ptr);
67 *ptr = PARAM_INIT;
68 ret = mprotect(ptr, MMAP_SIZE, PROT_READ);
69 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
70 ICUNIT_ASSERT_EQUAL(*ptr, PARAM_INIT, *ptr);
71 ret = mprotect(ptr, MMAP_SIZE, PROT_NONE);
72 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
73 printf("%d\n", *ptr);
74 exit(0);
75 }
76
77 ret = waitpid(pid, &status, 0);
78 ICUNIT_ASSERT_EQUAL(ret, pid, ret);
79 ret = WIFEXITED(status);
80 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
81 ret = WIFSIGNALED(status);
82 ICUNIT_ASSERT_EQUAL(ret, 1, ret);
83 ret = WTERMSIG(status);
84 ICUNIT_ASSERT_EQUAL(ret, SIGUSR2, ret);
85
86 return 0;
87 }
88
ItTestMmap009(void)89 void ItTestMmap009(void)
90 {
91 TEST_ADD_CASE("IT_MEM_MMAP_009", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
92 }
93
94