test_sysctl.c (35576438591e8d37c7651e6ff56f2e07c7f9615a) test_sysctl.c (f2e7a6265e5a5e02ee663eda3d0527dd8230b832)
1// SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
2/*
3 * proc sysctl test driver
4 *
5 * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
6 */
7
8/*

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25#include <linux/async.h>
26#include <linux/delay.h>
27#include <linux/vmalloc.h>
28
29static int i_zero;
30static int i_one_hundred = 100;
31static int match_int_ok = 1;
32
1// SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
2/*
3 * proc sysctl test driver
4 *
5 * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
6 */
7
8/*

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25#include <linux/async.h>
26#include <linux/delay.h>
27#include <linux/vmalloc.h>
28
29static int i_zero;
30static int i_one_hundred = 100;
31static int match_int_ok = 1;
32
33
34static struct {
35 struct ctl_table_header *test_h_setup_node;
36 struct ctl_table_header *test_h_mnt;
37 struct ctl_table_header *test_h_mnterror;
38} sysctl_test_headers;
39
33struct test_sysctl_data {
34 int int_0001;
35 int int_0002;
36 int int_0003[4];
37
38 int boot_int;
39
40 unsigned int uint_0001;

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148 {.defined = *(int *)SYSCTL_NEG_ONE, .wanted = -1},
149 };
150
151 for (i = 0; i < ARRAY_SIZE(match_int); i++)
152 if (match_int[i].defined != match_int[i].wanted)
153 match_int_ok = 0;
154}
155
40struct test_sysctl_data {
41 int int_0001;
42 int int_0002;
43 int int_0003[4];
44
45 int boot_int;
46
47 unsigned int uint_0001;

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155 {.defined = *(int *)SYSCTL_NEG_ONE, .wanted = -1},
156 };
157
158 for (i = 0; i < ARRAY_SIZE(match_int); i++)
159 if (match_int[i].defined != match_int[i].wanted)
160 match_int_ok = 0;
161}
162
156static struct ctl_table_header *test_sysctl_header;
157
158static int test_sysctl_setup_node_tests(void)
159{
160 test_sysctl_calc_match_int_ok();
161 test_data.bitmap_0001 = kzalloc(SYSCTL_TEST_BITMAP_SIZE/8, GFP_KERNEL);
162 if (!test_data.bitmap_0001)
163 return -ENOMEM;
163static int test_sysctl_setup_node_tests(void)
164{
165 test_sysctl_calc_match_int_ok();
166 test_data.bitmap_0001 = kzalloc(SYSCTL_TEST_BITMAP_SIZE/8, GFP_KERNEL);
167 if (!test_data.bitmap_0001)
168 return -ENOMEM;
164 test_sysctl_header = register_sysctl("debug/test_sysctl", test_table);
165 if (!test_sysctl_header) {
169 sysctl_test_headers.test_h_setup_node = register_sysctl("debug/test_sysctl", test_table);
170 if (!sysctl_test_headers.test_h_setup_node) {
166 kfree(test_data.bitmap_0001);
167 return -ENOMEM;
168 }
169
170 return 0;
171}
172
173/* Used to test that unregister actually removes the directory */

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190 test_table_unregister);
191 if (!unregister)
192 return -ENOMEM;
193
194 unregister_sysctl_table(unregister);
195 return 0;
196}
197
171 kfree(test_data.bitmap_0001);
172 return -ENOMEM;
173 }
174
175 return 0;
176}
177
178/* Used to test that unregister actually removes the directory */

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195 test_table_unregister);
196 if (!unregister)
197 return -ENOMEM;
198
199 unregister_sysctl_table(unregister);
200 return 0;
201}
202
203static int test_sysctl_run_register_mount_point(void)
204{
205 sysctl_test_headers.test_h_mnt
206 = register_sysctl_mount_point("debug/test_sysctl/mnt");
207 if (!sysctl_test_headers.test_h_mnt)
208 return -ENOMEM;
209
210 sysctl_test_headers.test_h_mnterror
211 = register_sysctl("debug/test_sysctl/mnt/mnt_error",
212 test_table_unregister);
213 /*
214 * Don't check the result.:
215 * If it fails (expected behavior), return 0.
216 * If successful (missbehavior of register mount point), we want to see
217 * mnt_error when we run the sysctl test script
218 */
219
220 return 0;
221}
222
198static int __init test_sysctl_init(void)
199{
200 int err;
201
202 err = test_sysctl_setup_node_tests();
203 if (err)
204 goto out;
205
206 err = test_sysctl_run_unregister_nested();
223static int __init test_sysctl_init(void)
224{
225 int err;
226
227 err = test_sysctl_setup_node_tests();
228 if (err)
229 goto out;
230
231 err = test_sysctl_run_unregister_nested();
232 if (err)
233 goto out;
207
234
235 err = test_sysctl_run_register_mount_point();
236
208out:
209 return err;
210}
211module_init(test_sysctl_init);
212
213static void __exit test_sysctl_exit(void)
214{
215 kfree(test_data.bitmap_0001);
237out:
238 return err;
239}
240module_init(test_sysctl_init);
241
242static void __exit test_sysctl_exit(void)
243{
244 kfree(test_data.bitmap_0001);
216 if (test_sysctl_header)
217 unregister_sysctl_table(test_sysctl_header);
245 if (sysctl_test_headers.test_h_setup_node)
246 unregister_sysctl_table(sysctl_test_headers.test_h_setup_node);
247 if (sysctl_test_headers.test_h_mnt)
248 unregister_sysctl_table(sysctl_test_headers.test_h_mnt);
249 if (sysctl_test_headers.test_h_mnterror)
250 unregister_sysctl_table(sysctl_test_headers.test_h_mnterror);
218}
219
220module_exit(test_sysctl_exit);
221
222MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
223MODULE_LICENSE("GPL");
251}
252
253module_exit(test_sysctl_exit);
254
255MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
256MODULE_LICENSE("GPL");