test_hexdump.c (002c6ca75289a4ac4f6738213dd2d258704886e4) test_hexdump.c (8032bf1233a74627ce69b803608e650f3f35971c)
1/*
2 * Test cases for lib/hexdump.c module.
3 */
4#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
5
6#include <linux/init.h>
7#include <linux/kernel.h>
8#include <linux/module.h>

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144 pr_err("Expect: '%s'\n", test);
145 failed_tests++;
146 }
147}
148
149static void __init test_hexdump_set(int rowsize, bool ascii)
150{
151 size_t d = min_t(size_t, sizeof(data_b), rowsize);
1/*
2 * Test cases for lib/hexdump.c module.
3 */
4#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
5
6#include <linux/init.h>
7#include <linux/kernel.h>
8#include <linux/module.h>

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144 pr_err("Expect: '%s'\n", test);
145 failed_tests++;
146 }
147}
148
149static void __init test_hexdump_set(int rowsize, bool ascii)
150{
151 size_t d = min_t(size_t, sizeof(data_b), rowsize);
152 size_t len = prandom_u32_max(d) + 1;
152 size_t len = get_random_u32_below(d) + 1;
153
154 test_hexdump(len, rowsize, 4, ascii);
155 test_hexdump(len, rowsize, 2, ascii);
156 test_hexdump(len, rowsize, 8, ascii);
157 test_hexdump(len, rowsize, 1, ascii);
158}
159
160static void __init test_hexdump_overflow(size_t buflen, size_t len,

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203 pr_err("Expect: %d '%s'\n", e, test);
204 failed_tests++;
205 }
206}
207
208static void __init test_hexdump_overflow_set(size_t buflen, bool ascii)
209{
210 unsigned int i = 0;
153
154 test_hexdump(len, rowsize, 4, ascii);
155 test_hexdump(len, rowsize, 2, ascii);
156 test_hexdump(len, rowsize, 8, ascii);
157 test_hexdump(len, rowsize, 1, ascii);
158}
159
160static void __init test_hexdump_overflow(size_t buflen, size_t len,

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203 pr_err("Expect: %d '%s'\n", e, test);
204 failed_tests++;
205 }
206}
207
208static void __init test_hexdump_overflow_set(size_t buflen, bool ascii)
209{
210 unsigned int i = 0;
211 int rs = (prandom_u32_max(2) + 1) * 16;
211 int rs = (get_random_u32_below(2) + 1) * 16;
212
213 do {
214 int gs = 1 << i;
212
213 do {
214 int gs = 1 << i;
215 size_t len = prandom_u32_max(rs) + gs;
215 size_t len = get_random_u32_below(rs) + gs;
216
217 test_hexdump_overflow(buflen, rounddown(len, gs), rs, gs, ascii);
218 } while (i++ < 3);
219}
220
221static int __init test_hexdump_init(void)
222{
223 unsigned int i;
224 int rowsize;
225
216
217 test_hexdump_overflow(buflen, rounddown(len, gs), rs, gs, ascii);
218 } while (i++ < 3);
219}
220
221static int __init test_hexdump_init(void)
222{
223 unsigned int i;
224 int rowsize;
225
226 rowsize = (prandom_u32_max(2) + 1) * 16;
226 rowsize = (get_random_u32_below(2) + 1) * 16;
227 for (i = 0; i < 16; i++)
228 test_hexdump_set(rowsize, false);
229
227 for (i = 0; i < 16; i++)
228 test_hexdump_set(rowsize, false);
229
230 rowsize = (prandom_u32_max(2) + 1) * 16;
230 rowsize = (get_random_u32_below(2) + 1) * 16;
231 for (i = 0; i < 16; i++)
232 test_hexdump_set(rowsize, true);
233
234 for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
235 test_hexdump_overflow_set(i, false);
236
237 for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
238 test_hexdump_overflow_set(i, true);

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232 test_hexdump_set(rowsize, true);
233
234 for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
235 test_hexdump_overflow_set(i, false);
236
237 for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
238 test_hexdump_overflow_set(i, true);

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