1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * KUnit test of proc sysctl. 3 * KUnit test of proc sysctl.
4 */ 4 */
5 5
6 #include <kunit/test.h> 6 #include <kunit/test.h>
7 #include <linux/sysctl.h> 7 #include <linux/sysctl.h>
8 8
9 #define KUNIT_PROC_READ 0 9 #define KUNIT_PROC_READ 0
10 #define KUNIT_PROC_WRITE 1 10 #define KUNIT_PROC_WRITE 1
11 11
>> 12 static int i_zero;
>> 13 static int i_one_hundred = 100;
>> 14
12 /* 15 /*
13 * Test that proc_dointvec will not try to use 16 * Test that proc_dointvec will not try to use a NULL .data field even when the
14 * length is non-zero. 17 * length is non-zero.
15 */ 18 */
16 static void sysctl_test_api_dointvec_null_tbl_ 19 static void sysctl_test_api_dointvec_null_tbl_data(struct kunit *test)
17 { 20 {
18 struct ctl_table null_data_table = { 21 struct ctl_table null_data_table = {
19 .procname = "foo", 22 .procname = "foo",
20 /* 23 /*
21 * Here we are testing that pr 24 * Here we are testing that proc_dointvec behaves correctly when
22 * we give it a NULL .data fie 25 * we give it a NULL .data field. Normally this would point to a
23 * piece of memory where the v 26 * piece of memory where the value would be stored.
24 */ 27 */
25 .data = NULL, 28 .data = NULL,
26 .maxlen = sizeof(int), 29 .maxlen = sizeof(int),
27 .mode = 0644, 30 .mode = 0644,
28 .proc_handler = proc_dointve 31 .proc_handler = proc_dointvec,
29 .extra1 = SYSCTL_ZERO, !! 32 .extra1 = &i_zero,
30 .extra2 = SYSCTL_ONE_H !! 33 .extra2 = &i_one_hundred,
31 }; 34 };
32 /* 35 /*
33 * proc_dointvec expects a buffer in u 36 * proc_dointvec expects a buffer in user space, so we allocate one. We
34 * also need to cast it to __user so s 37 * also need to cast it to __user so sparse doesn't get mad.
35 */ 38 */
36 void __user *buffer = (void __user *)k 39 void __user *buffer = (void __user *)kunit_kzalloc(test, sizeof(int),
37 40 GFP_USER);
38 size_t len; 41 size_t len;
39 loff_t pos; 42 loff_t pos;
40 43
41 /* 44 /*
42 * We don't care what the starting len 45 * We don't care what the starting length is since proc_dointvec should
43 * not try to read because .data is NU 46 * not try to read because .data is NULL.
44 */ 47 */
45 len = 1234; 48 len = 1234;
46 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 49 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&null_data_table,
47 50 KUNIT_PROC_READ, buffer, &len,
48 51 &pos));
49 KUNIT_EXPECT_EQ(test, 0, len); !! 52 KUNIT_EXPECT_EQ(test, (size_t)0, len);
50 53
51 /* 54 /*
52 * See above. 55 * See above.
53 */ 56 */
54 len = 1234; 57 len = 1234;
55 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 58 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&null_data_table,
56 59 KUNIT_PROC_WRITE, buffer, &len,
57 60 &pos));
58 KUNIT_EXPECT_EQ(test, 0, len); !! 61 KUNIT_EXPECT_EQ(test, (size_t)0, len);
59 } 62 }
60 63
61 /* 64 /*
62 * Similar to the previous test, we create a s 65 * Similar to the previous test, we create a struct ctrl_table that has a .data
63 * field that proc_dointvec cannot do anything 66 * field that proc_dointvec cannot do anything with; however, this time it is
64 * because we tell proc_dointvec that the size 67 * because we tell proc_dointvec that the size is 0.
65 */ 68 */
66 static void sysctl_test_api_dointvec_table_max 69 static void sysctl_test_api_dointvec_table_maxlen_unset(struct kunit *test)
67 { 70 {
68 int data = 0; 71 int data = 0;
69 struct ctl_table data_maxlen_unset_tab 72 struct ctl_table data_maxlen_unset_table = {
70 .procname = "foo", 73 .procname = "foo",
71 .data = &data, 74 .data = &data,
72 /* 75 /*
73 * So .data is no longer NULL, 76 * So .data is no longer NULL, but we tell proc_dointvec its
74 * length is 0, so it still sh 77 * length is 0, so it still shouldn't try to use it.
75 */ 78 */
76 .maxlen = 0, 79 .maxlen = 0,
77 .mode = 0644, 80 .mode = 0644,
78 .proc_handler = proc_dointve 81 .proc_handler = proc_dointvec,
79 .extra1 = SYSCTL_ZERO, !! 82 .extra1 = &i_zero,
80 .extra2 = SYSCTL_ONE_H !! 83 .extra2 = &i_one_hundred,
81 }; 84 };
82 void __user *buffer = (void __user *)k 85 void __user *buffer = (void __user *)kunit_kzalloc(test, sizeof(int),
83 86 GFP_USER);
84 size_t len; 87 size_t len;
85 loff_t pos; 88 loff_t pos;
86 89
87 /* 90 /*
88 * As before, we don't care what buffe 91 * As before, we don't care what buffer length is because proc_dointvec
89 * cannot do anything because its inte 92 * cannot do anything because its internal .data buffer has zero length.
90 */ 93 */
91 len = 1234; 94 len = 1234;
92 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 95 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&data_maxlen_unset_table,
93 96 KUNIT_PROC_READ, buffer, &len,
94 97 &pos));
95 KUNIT_EXPECT_EQ(test, 0, len); !! 98 KUNIT_EXPECT_EQ(test, (size_t)0, len);
96 99
97 /* 100 /*
98 * See previous comment. 101 * See previous comment.
99 */ 102 */
100 len = 1234; 103 len = 1234;
101 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 104 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&data_maxlen_unset_table,
102 105 KUNIT_PROC_WRITE, buffer, &len,
103 106 &pos));
104 KUNIT_EXPECT_EQ(test, 0, len); !! 107 KUNIT_EXPECT_EQ(test, (size_t)0, len);
105 } 108 }
106 109
107 /* 110 /*
108 * Here we provide a valid struct ctl_table, b 111 * Here we provide a valid struct ctl_table, but we try to read and write from
109 * it using a buffer of zero length, so it sho 112 * it using a buffer of zero length, so it should still fail in a similar way as
110 * before. 113 * before.
111 */ 114 */
112 static void sysctl_test_api_dointvec_table_len 115 static void sysctl_test_api_dointvec_table_len_is_zero(struct kunit *test)
113 { 116 {
114 int data = 0; 117 int data = 0;
115 /* Good table. */ 118 /* Good table. */
116 struct ctl_table table = { 119 struct ctl_table table = {
117 .procname = "foo", 120 .procname = "foo",
118 .data = &data, 121 .data = &data,
119 .maxlen = sizeof(int), 122 .maxlen = sizeof(int),
120 .mode = 0644, 123 .mode = 0644,
121 .proc_handler = proc_dointve 124 .proc_handler = proc_dointvec,
122 .extra1 = SYSCTL_ZERO, !! 125 .extra1 = &i_zero,
123 .extra2 = SYSCTL_ONE_H !! 126 .extra2 = &i_one_hundred,
124 }; 127 };
125 void __user *buffer = (void __user *)k 128 void __user *buffer = (void __user *)kunit_kzalloc(test, sizeof(int),
126 129 GFP_USER);
127 /* 130 /*
128 * However, now our read/write buffer 131 * However, now our read/write buffer has zero length.
129 */ 132 */
130 size_t len = 0; 133 size_t len = 0;
131 loff_t pos; 134 loff_t pos;
132 135
133 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 136 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ, buffer,
134 137 &len, &pos));
135 KUNIT_EXPECT_EQ(test, 0, len); !! 138 KUNIT_EXPECT_EQ(test, (size_t)0, len);
136 139
137 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 140 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE, buffer,
138 141 &len, &pos));
139 KUNIT_EXPECT_EQ(test, 0, len); !! 142 KUNIT_EXPECT_EQ(test, (size_t)0, len);
140 } 143 }
141 144
142 /* 145 /*
143 * Test that proc_dointvec refuses to read whe 146 * Test that proc_dointvec refuses to read when the file position is non-zero.
144 */ 147 */
145 static void sysctl_test_api_dointvec_table_rea 148 static void sysctl_test_api_dointvec_table_read_but_position_set(
146 struct kunit *test) 149 struct kunit *test)
147 { 150 {
148 int data = 0; 151 int data = 0;
149 /* Good table. */ 152 /* Good table. */
150 struct ctl_table table = { 153 struct ctl_table table = {
151 .procname = "foo", 154 .procname = "foo",
152 .data = &data, 155 .data = &data,
153 .maxlen = sizeof(int), 156 .maxlen = sizeof(int),
154 .mode = 0644, 157 .mode = 0644,
155 .proc_handler = proc_dointve 158 .proc_handler = proc_dointvec,
156 .extra1 = SYSCTL_ZERO, !! 159 .extra1 = &i_zero,
157 .extra2 = SYSCTL_ONE_H !! 160 .extra2 = &i_one_hundred,
158 }; 161 };
159 void __user *buffer = (void __user *)k 162 void __user *buffer = (void __user *)kunit_kzalloc(test, sizeof(int),
160 163 GFP_USER);
161 /* 164 /*
162 * We don't care about our buffer leng 165 * We don't care about our buffer length because we start off with a
163 * non-zero file position. 166 * non-zero file position.
164 */ 167 */
165 size_t len = 1234; 168 size_t len = 1234;
166 /* 169 /*
167 * proc_dointvec should refuse to read 170 * proc_dointvec should refuse to read into the buffer since the file
168 * pos is non-zero. 171 * pos is non-zero.
169 */ 172 */
170 loff_t pos = 1; 173 loff_t pos = 1;
171 174
172 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 175 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ, buffer,
173 176 &len, &pos));
174 KUNIT_EXPECT_EQ(test, 0, len); !! 177 KUNIT_EXPECT_EQ(test, (size_t)0, len);
175 } 178 }
176 179
177 /* 180 /*
178 * Test that we can read a two digit number in 181 * Test that we can read a two digit number in a sufficiently size buffer.
179 * Nothing fancy. 182 * Nothing fancy.
180 */ 183 */
181 static void sysctl_test_dointvec_read_happy_si 184 static void sysctl_test_dointvec_read_happy_single_positive(struct kunit *test)
182 { 185 {
183 int data = 0; 186 int data = 0;
184 /* Good table. */ 187 /* Good table. */
185 struct ctl_table table = { 188 struct ctl_table table = {
186 .procname = "foo", 189 .procname = "foo",
187 .data = &data, 190 .data = &data,
188 .maxlen = sizeof(int), 191 .maxlen = sizeof(int),
189 .mode = 0644, 192 .mode = 0644,
190 .proc_handler = proc_dointve 193 .proc_handler = proc_dointvec,
191 .extra1 = SYSCTL_ZERO, !! 194 .extra1 = &i_zero,
192 .extra2 = SYSCTL_ONE_H !! 195 .extra2 = &i_one_hundred,
193 }; 196 };
194 size_t len = 4; 197 size_t len = 4;
195 loff_t pos = 0; 198 loff_t pos = 0;
196 char *buffer = kunit_kzalloc(test, len 199 char *buffer = kunit_kzalloc(test, len, GFP_USER);
197 char __user *user_buffer = (char __use 200 char __user *user_buffer = (char __user *)buffer;
198 /* Store 13 in the data field. */ 201 /* Store 13 in the data field. */
199 *((int *)table.data) = 13; 202 *((int *)table.data) = 13;
200 203
201 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 204 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ,
202 205 user_buffer, &len, &pos));
203 KUNIT_ASSERT_EQ(test, 3, len); !! 206 KUNIT_ASSERT_EQ(test, (size_t)3, len);
204 buffer[len] = '\0'; 207 buffer[len] = '\0';
205 /* And we read 13 back out. */ 208 /* And we read 13 back out. */
206 KUNIT_EXPECT_STREQ(test, "13\n", buffe 209 KUNIT_EXPECT_STREQ(test, "13\n", buffer);
207 } 210 }
208 211
209 /* 212 /*
210 * Same as previous test, just now with negati 213 * Same as previous test, just now with negative numbers.
211 */ 214 */
212 static void sysctl_test_dointvec_read_happy_si 215 static void sysctl_test_dointvec_read_happy_single_negative(struct kunit *test)
213 { 216 {
214 int data = 0; 217 int data = 0;
215 /* Good table. */ 218 /* Good table. */
216 struct ctl_table table = { 219 struct ctl_table table = {
217 .procname = "foo", 220 .procname = "foo",
218 .data = &data, 221 .data = &data,
219 .maxlen = sizeof(int), 222 .maxlen = sizeof(int),
220 .mode = 0644, 223 .mode = 0644,
221 .proc_handler = proc_dointve 224 .proc_handler = proc_dointvec,
222 .extra1 = SYSCTL_ZERO, !! 225 .extra1 = &i_zero,
223 .extra2 = SYSCTL_ONE_H !! 226 .extra2 = &i_one_hundred,
224 }; 227 };
225 size_t len = 5; 228 size_t len = 5;
226 loff_t pos = 0; 229 loff_t pos = 0;
227 char *buffer = kunit_kzalloc(test, len 230 char *buffer = kunit_kzalloc(test, len, GFP_USER);
228 char __user *user_buffer = (char __use 231 char __user *user_buffer = (char __user *)buffer;
229 *((int *)table.data) = -16; 232 *((int *)table.data) = -16;
230 233
231 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 234 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_READ,
232 235 user_buffer, &len, &pos));
233 KUNIT_ASSERT_EQ(test, 4, len); !! 236 KUNIT_ASSERT_EQ(test, (size_t)4, len);
234 buffer[len] = '\0'; 237 buffer[len] = '\0';
235 KUNIT_EXPECT_STREQ(test, "-16\n", buff !! 238 KUNIT_EXPECT_STREQ(test, "-16\n", (char *)buffer);
236 } 239 }
237 240
238 /* 241 /*
239 * Test that a simple positive write works. 242 * Test that a simple positive write works.
240 */ 243 */
241 static void sysctl_test_dointvec_write_happy_s 244 static void sysctl_test_dointvec_write_happy_single_positive(struct kunit *test)
242 { 245 {
243 int data = 0; 246 int data = 0;
244 /* Good table. */ 247 /* Good table. */
245 struct ctl_table table = { 248 struct ctl_table table = {
246 .procname = "foo", 249 .procname = "foo",
247 .data = &data, 250 .data = &data,
248 .maxlen = sizeof(int), 251 .maxlen = sizeof(int),
249 .mode = 0644, 252 .mode = 0644,
250 .proc_handler = proc_dointve 253 .proc_handler = proc_dointvec,
251 .extra1 = SYSCTL_ZERO, !! 254 .extra1 = &i_zero,
252 .extra2 = SYSCTL_ONE_H !! 255 .extra2 = &i_one_hundred,
253 }; 256 };
254 char input[] = "9"; 257 char input[] = "9";
255 size_t len = sizeof(input) - 1; 258 size_t len = sizeof(input) - 1;
256 loff_t pos = 0; 259 loff_t pos = 0;
257 char *buffer = kunit_kzalloc(test, len 260 char *buffer = kunit_kzalloc(test, len, GFP_USER);
258 char __user *user_buffer = (char __use 261 char __user *user_buffer = (char __user *)buffer;
259 262
260 memcpy(buffer, input, len); 263 memcpy(buffer, input, len);
261 264
262 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 265 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE,
263 266 user_buffer, &len, &pos));
264 KUNIT_EXPECT_EQ(test, sizeof(input) - 267 KUNIT_EXPECT_EQ(test, sizeof(input) - 1, len);
265 KUNIT_EXPECT_EQ(test, sizeof(input) - !! 268 KUNIT_EXPECT_EQ(test, sizeof(input) - 1, (size_t)pos);
266 KUNIT_EXPECT_EQ(test, 9, *((int *)tabl 269 KUNIT_EXPECT_EQ(test, 9, *((int *)table.data));
267 } 270 }
268 271
269 /* 272 /*
270 * Same as previous test, but now with negativ 273 * Same as previous test, but now with negative numbers.
271 */ 274 */
272 static void sysctl_test_dointvec_write_happy_s 275 static void sysctl_test_dointvec_write_happy_single_negative(struct kunit *test)
273 { 276 {
274 int data = 0; 277 int data = 0;
275 struct ctl_table table = { 278 struct ctl_table table = {
276 .procname = "foo", 279 .procname = "foo",
277 .data = &data, 280 .data = &data,
278 .maxlen = sizeof(int), 281 .maxlen = sizeof(int),
279 .mode = 0644, 282 .mode = 0644,
280 .proc_handler = proc_dointve 283 .proc_handler = proc_dointvec,
281 .extra1 = SYSCTL_ZERO, !! 284 .extra1 = &i_zero,
282 .extra2 = SYSCTL_ONE_H !! 285 .extra2 = &i_one_hundred,
283 }; 286 };
284 char input[] = "-9"; 287 char input[] = "-9";
285 size_t len = sizeof(input) - 1; 288 size_t len = sizeof(input) - 1;
286 loff_t pos = 0; 289 loff_t pos = 0;
287 char *buffer = kunit_kzalloc(test, len 290 char *buffer = kunit_kzalloc(test, len, GFP_USER);
288 char __user *user_buffer = (char __use 291 char __user *user_buffer = (char __user *)buffer;
289 292
290 memcpy(buffer, input, len); 293 memcpy(buffer, input, len);
291 294
292 KUNIT_EXPECT_EQ(test, 0, proc_dointvec 295 KUNIT_EXPECT_EQ(test, 0, proc_dointvec(&table, KUNIT_PROC_WRITE,
293 296 user_buffer, &len, &pos));
294 KUNIT_EXPECT_EQ(test, sizeof(input) - 297 KUNIT_EXPECT_EQ(test, sizeof(input) - 1, len);
295 KUNIT_EXPECT_EQ(test, sizeof(input) - !! 298 KUNIT_EXPECT_EQ(test, sizeof(input) - 1, (size_t)pos);
296 KUNIT_EXPECT_EQ(test, -9, *((int *)tab 299 KUNIT_EXPECT_EQ(test, -9, *((int *)table.data));
297 } 300 }
298 301
299 /* 302 /*
300 * Test that writing a value smaller than the 303 * Test that writing a value smaller than the minimum possible value is not
301 * allowed. 304 * allowed.
302 */ 305 */
303 static void sysctl_test_api_dointvec_write_sin 306 static void sysctl_test_api_dointvec_write_single_less_int_min(
304 struct kunit *test) 307 struct kunit *test)
305 { 308 {
306 int data = 0; 309 int data = 0;
307 struct ctl_table table = { 310 struct ctl_table table = {
308 .procname = "foo", 311 .procname = "foo",
309 .data = &data, 312 .data = &data,
310 .maxlen = sizeof(int), 313 .maxlen = sizeof(int),
311 .mode = 0644, 314 .mode = 0644,
312 .proc_handler = proc_dointve 315 .proc_handler = proc_dointvec,
313 .extra1 = SYSCTL_ZERO, !! 316 .extra1 = &i_zero,
314 .extra2 = SYSCTL_ONE_H !! 317 .extra2 = &i_one_hundred,
315 }; 318 };
316 size_t max_len = 32, len = max_len; 319 size_t max_len = 32, len = max_len;
317 loff_t pos = 0; 320 loff_t pos = 0;
318 char *buffer = kunit_kzalloc(test, max 321 char *buffer = kunit_kzalloc(test, max_len, GFP_USER);
319 char __user *user_buffer = (char __use 322 char __user *user_buffer = (char __user *)buffer;
320 unsigned long abs_of_less_than_min = ( 323 unsigned long abs_of_less_than_min = (unsigned long)INT_MAX
321 - 324 - (INT_MAX + INT_MIN) + 1;
322 325
323 /* 326 /*
324 * We use this rigmarole to create a s 327 * We use this rigmarole to create a string that contains a value one
325 * less than the minimum accepted valu 328 * less than the minimum accepted value.
326 */ 329 */
327 KUNIT_ASSERT_LT(test, 330 KUNIT_ASSERT_LT(test,
328 (size_t)snprintf(buffe 331 (size_t)snprintf(buffer, max_len, "-%lu",
329 abs_o 332 abs_of_less_than_min),
330 max_len); 333 max_len);
331 334
332 KUNIT_EXPECT_EQ(test, -EINVAL, proc_do 335 KUNIT_EXPECT_EQ(test, -EINVAL, proc_dointvec(&table, KUNIT_PROC_WRITE,
333 336 user_buffer, &len, &pos));
334 KUNIT_EXPECT_EQ(test, max_len, len); 337 KUNIT_EXPECT_EQ(test, max_len, len);
335 KUNIT_EXPECT_EQ(test, 0, *((int *)tabl 338 KUNIT_EXPECT_EQ(test, 0, *((int *)table.data));
336 } 339 }
337 340
338 /* 341 /*
339 * Test that writing the maximum possible valu 342 * Test that writing the maximum possible value works.
340 */ 343 */
341 static void sysctl_test_api_dointvec_write_sin 344 static void sysctl_test_api_dointvec_write_single_greater_int_max(
342 struct kunit *test) 345 struct kunit *test)
343 { 346 {
344 int data = 0; 347 int data = 0;
345 struct ctl_table table = { 348 struct ctl_table table = {
346 .procname = "foo", 349 .procname = "foo",
347 .data = &data, 350 .data = &data,
348 .maxlen = sizeof(int), 351 .maxlen = sizeof(int),
349 .mode = 0644, 352 .mode = 0644,
350 .proc_handler = proc_dointve 353 .proc_handler = proc_dointvec,
351 .extra1 = SYSCTL_ZERO, !! 354 .extra1 = &i_zero,
352 .extra2 = SYSCTL_ONE_H !! 355 .extra2 = &i_one_hundred,
353 }; 356 };
354 size_t max_len = 32, len = max_len; 357 size_t max_len = 32, len = max_len;
355 loff_t pos = 0; 358 loff_t pos = 0;
356 char *buffer = kunit_kzalloc(test, max 359 char *buffer = kunit_kzalloc(test, max_len, GFP_USER);
357 char __user *user_buffer = (char __use 360 char __user *user_buffer = (char __user *)buffer;
358 unsigned long greater_than_max = (unsi 361 unsigned long greater_than_max = (unsigned long)INT_MAX + 1;
359 362
360 KUNIT_ASSERT_GT(test, greater_than_max 363 KUNIT_ASSERT_GT(test, greater_than_max, (unsigned long)INT_MAX);
361 KUNIT_ASSERT_LT(test, (size_t)snprintf 364 KUNIT_ASSERT_LT(test, (size_t)snprintf(buffer, max_len, "%lu",
362 365 greater_than_max),
363 max_len); 366 max_len);
364 KUNIT_EXPECT_EQ(test, -EINVAL, proc_do 367 KUNIT_EXPECT_EQ(test, -EINVAL, proc_dointvec(&table, KUNIT_PROC_WRITE,
365 368 user_buffer, &len, &pos));
366 KUNIT_ASSERT_EQ(test, max_len, len); 369 KUNIT_ASSERT_EQ(test, max_len, len);
367 KUNIT_EXPECT_EQ(test, 0, *((int *)tabl 370 KUNIT_EXPECT_EQ(test, 0, *((int *)table.data));
368 } 371 }
369 372
370 /* <<
371 * Test that registering an invalid extra valu <<
372 */ <<
373 static void sysctl_test_register_sysctl_sz_inv <<
374 struct kunit *test) <<
375 { <<
376 unsigned char data = 0; <<
377 struct ctl_table table_foo[] = { <<
378 { <<
379 .procname = "foo <<
380 .data = &dat <<
381 .maxlen = size <<
382 .mode = 0644 <<
383 .proc_handler = proc <<
384 .extra1 = SYSC <<
385 .extra2 = SYSC <<
386 }, <<
387 }; <<
388 <<
389 struct ctl_table table_bar[] = { <<
390 { <<
391 .procname = "bar <<
392 .data = &dat <<
393 .maxlen = size <<
394 .mode = 0644 <<
395 .proc_handler = proc <<
396 .extra1 = SYSC <<
397 .extra2 = SYSC <<
398 }, <<
399 }; <<
400 <<
401 struct ctl_table table_qux[] = { <<
402 { <<
403 .procname = "qux <<
404 .data = &dat <<
405 .maxlen = size <<
406 .mode = 0644 <<
407 .proc_handler = proc <<
408 .extra1 = SYSC <<
409 .extra2 = SYSC <<
410 }, <<
411 }; <<
412 <<
413 KUNIT_EXPECT_NULL(test, register_sysct <<
414 KUNIT_EXPECT_NULL(test, register_sysct <<
415 KUNIT_EXPECT_NOT_NULL(test, register_s <<
416 } <<
417 <<
418 static struct kunit_case sysctl_test_cases[] = 373 static struct kunit_case sysctl_test_cases[] = {
419 KUNIT_CASE(sysctl_test_api_dointvec_nu 374 KUNIT_CASE(sysctl_test_api_dointvec_null_tbl_data),
420 KUNIT_CASE(sysctl_test_api_dointvec_ta 375 KUNIT_CASE(sysctl_test_api_dointvec_table_maxlen_unset),
421 KUNIT_CASE(sysctl_test_api_dointvec_ta 376 KUNIT_CASE(sysctl_test_api_dointvec_table_len_is_zero),
422 KUNIT_CASE(sysctl_test_api_dointvec_ta 377 KUNIT_CASE(sysctl_test_api_dointvec_table_read_but_position_set),
423 KUNIT_CASE(sysctl_test_dointvec_read_h 378 KUNIT_CASE(sysctl_test_dointvec_read_happy_single_positive),
424 KUNIT_CASE(sysctl_test_dointvec_read_h 379 KUNIT_CASE(sysctl_test_dointvec_read_happy_single_negative),
425 KUNIT_CASE(sysctl_test_dointvec_write_ 380 KUNIT_CASE(sysctl_test_dointvec_write_happy_single_positive),
426 KUNIT_CASE(sysctl_test_dointvec_write_ 381 KUNIT_CASE(sysctl_test_dointvec_write_happy_single_negative),
427 KUNIT_CASE(sysctl_test_api_dointvec_wr 382 KUNIT_CASE(sysctl_test_api_dointvec_write_single_less_int_min),
428 KUNIT_CASE(sysctl_test_api_dointvec_wr 383 KUNIT_CASE(sysctl_test_api_dointvec_write_single_greater_int_max),
429 KUNIT_CASE(sysctl_test_register_sysctl <<
430 {} 384 {}
431 }; 385 };
432 386
433 static struct kunit_suite sysctl_test_suite = 387 static struct kunit_suite sysctl_test_suite = {
434 .name = "sysctl_test", 388 .name = "sysctl_test",
435 .test_cases = sysctl_test_cases, 389 .test_cases = sysctl_test_cases,
436 }; 390 };
437 391
438 kunit_test_suites(&sysctl_test_suite); !! 392 kunit_test_suite(sysctl_test_suite);
439 <<
440 MODULE_DESCRIPTION("KUnit test of proc sysctl" <<
441 MODULE_LICENSE("GPL v2"); <<
442 393
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