test_sysctl.c (2f56f84511367ce5ffd4a1c88dcd770ef049ea96) test_sysctl.c (4f2f682d89d83fb6194562321d875253282d8496)
1/*
2 * proc sysctl test driver
3 *
4 * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or at your option any

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39static int i_zero;
40static int i_one_hundred = 100;
41
42struct test_sysctl_data {
43 int int_0001;
44 int int_0002;
45 int int_0003[4];
46
1/*
2 * proc sysctl test driver
3 *
4 * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or at your option any

--- 30 unchanged lines hidden (view full) ---

39static int i_zero;
40static int i_one_hundred = 100;
41
42struct test_sysctl_data {
43 int int_0001;
44 int int_0002;
45 int int_0003[4];
46
47 int boot_int;
48
47 unsigned int uint_0001;
48
49 char string_0001[65];
50
51#define SYSCTL_TEST_BITMAP_SIZE 65536
52 unsigned long *bitmap_0001;
53};
54
55static struct test_sysctl_data test_data = {
56 .int_0001 = 60,
57 .int_0002 = 1,
58
59 .int_0003[0] = 0,
60 .int_0003[1] = 1,
61 .int_0003[2] = 2,
62 .int_0003[3] = 3,
63
49 unsigned int uint_0001;
50
51 char string_0001[65];
52
53#define SYSCTL_TEST_BITMAP_SIZE 65536
54 unsigned long *bitmap_0001;
55};
56
57static struct test_sysctl_data test_data = {
58 .int_0001 = 60,
59 .int_0002 = 1,
60
61 .int_0003[0] = 0,
62 .int_0003[1] = 1,
63 .int_0003[2] = 2,
64 .int_0003[3] = 3,
65
66 .boot_int = 0,
67
64 .uint_0001 = 314,
65
66 .string_0001 = "(none)",
67};
68
69/* These are all under /proc/sys/debug/test_sysctl/ */
70static struct ctl_table test_table[] = {
71 {

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87 {
88 .procname = "int_0003",
89 .data = &test_data.int_0003,
90 .maxlen = sizeof(test_data.int_0003),
91 .mode = 0644,
92 .proc_handler = proc_dointvec,
93 },
94 {
68 .uint_0001 = 314,
69
70 .string_0001 = "(none)",
71};
72
73/* These are all under /proc/sys/debug/test_sysctl/ */
74static struct ctl_table test_table[] = {
75 {

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91 {
92 .procname = "int_0003",
93 .data = &test_data.int_0003,
94 .maxlen = sizeof(test_data.int_0003),
95 .mode = 0644,
96 .proc_handler = proc_dointvec,
97 },
98 {
99 .procname = "boot_int",
100 .data = &test_data.boot_int,
101 .maxlen = sizeof(test_data.boot_int),
102 .mode = 0644,
103 .proc_handler = proc_dointvec,
104 .extra1 = SYSCTL_ZERO,
105 .extra2 = SYSCTL_ONE,
106 },
107 {
95 .procname = "uint_0001",
96 .data = &test_data.uint_0001,
97 .maxlen = sizeof(unsigned int),
98 .mode = 0644,
99 .proc_handler = proc_douintvec,
100 },
101 {
102 .procname = "string_0001",

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144 return -ENOMEM;
145 test_sysctl_header = register_sysctl_table(test_sysctl_root_table);
146 if (!test_sysctl_header) {
147 kfree(test_data.bitmap_0001);
148 return -ENOMEM;
149 }
150 return 0;
151}
108 .procname = "uint_0001",
109 .data = &test_data.uint_0001,
110 .maxlen = sizeof(unsigned int),
111 .mode = 0644,
112 .proc_handler = proc_douintvec,
113 },
114 {
115 .procname = "string_0001",

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157 return -ENOMEM;
158 test_sysctl_header = register_sysctl_table(test_sysctl_root_table);
159 if (!test_sysctl_header) {
160 kfree(test_data.bitmap_0001);
161 return -ENOMEM;
162 }
163 return 0;
164}
152module_init(test_sysctl_init);
165late_initcall(test_sysctl_init);
153
154static void __exit test_sysctl_exit(void)
155{
156 kfree(test_data.bitmap_0001);
157 if (test_sysctl_header)
158 unregister_sysctl_table(test_sysctl_header);
159}
160
161module_exit(test_sysctl_exit);
162
163MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
164MODULE_LICENSE("GPL");
166
167static void __exit test_sysctl_exit(void)
168{
169 kfree(test_data.bitmap_0001);
170 if (test_sysctl_header)
171 unregister_sysctl_table(test_sysctl_header);
172}
173
174module_exit(test_sysctl_exit);
175
176MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
177MODULE_LICENSE("GPL");