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59b36334 SA |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright (C) 2023 Sean Anderson <seanga2@gmail.com> | |
4 | */ | |
5 | ||
6 | #include <common.h> | |
7 | #include <blk.h> | |
8 | #include <ext_common.h> | |
9 | #include <ext4fs.h> | |
10 | #include <fat.h> | |
11 | #include <fs.h> | |
12 | #include <memalign.h> | |
6c5d0d93 | 13 | #include <spl.h> |
59b36334 SA |
14 | #include <asm/io.h> |
15 | #include <linux/stat.h> | |
16 | #include <test/spl.h> | |
17 | #include <test/ut.h> | |
18 | ||
19 | /** | |
20 | * create_ext2() - Create an "ext2" filesystem with a single file | |
21 | * @dst: The location of the new filesystem; MUST be zeroed | |
22 | * @size: The size of the file | |
23 | * @filename: The name of the file | |
24 | * @data_offset: Filled with the offset of the file data from @dst | |
25 | * | |
26 | * Budget mke2fs. We use 1k blocks (to reduce overhead) with a single block | |
27 | * group, which limits us to 8M of data. Almost every feature which increases | |
28 | * complexity (checksums, hash tree directories, etc.) is disabled. We do cheat | |
29 | * a little and use extents from ext4 to save having to deal with indirects, but | |
30 | * U-Boot doesn't care. | |
31 | * | |
32 | * If @dst is %NULL, nothing is copied. | |
33 | * | |
34 | * Return: The size of the filesystem in bytes | |
35 | */ | |
36 | static size_t create_ext2(void *dst, size_t size, const char *filename, | |
37 | size_t *data_offset) | |
38 | { | |
39 | u32 super_block = 1; | |
40 | u32 group_block = 2; | |
41 | u32 block_bitmap_block = 3; | |
42 | u32 inode_bitmap_block = 4; | |
43 | u32 inode_table_block = 5; | |
44 | u32 root_block = 6; | |
45 | u32 file_block = 7; | |
46 | ||
47 | u32 root_ino = EXT2_ROOT_INO; | |
48 | u32 file_ino = EXT2_BOOT_LOADER_INO; | |
49 | ||
50 | u32 block_size = EXT2_MIN_BLOCK_SIZE; | |
51 | u32 inode_size = sizeof(struct ext2_inode); | |
52 | ||
53 | u32 file_blocks = (size + block_size - 1) / block_size; | |
54 | u32 blocks = file_block + file_blocks; | |
55 | u32 inodes = block_size / inode_size; | |
56 | u32 filename_len = strlen(filename); | |
57 | u32 dirent_len = ALIGN(filename_len, sizeof(struct ext2_dirent)) + | |
58 | sizeof(struct ext2_dirent); | |
59 | ||
60 | struct ext2_sblock *sblock = dst + super_block * block_size; | |
61 | struct ext2_block_group *bg = dst + group_block * block_size; | |
62 | struct ext2_inode *inode_table = dst + inode_table_block * block_size; | |
63 | struct ext2_inode *root_inode = &inode_table[root_ino - 1]; | |
64 | struct ext2_inode *file_inode = &inode_table[file_ino - 1]; | |
65 | struct ext4_extent_header *ext_block = (void *)&file_inode->b; | |
66 | struct ext4_extent *extent = (void *)(ext_block + 1); | |
67 | struct ext2_dirent *dot = dst + root_block * block_size; | |
68 | struct ext2_dirent *dotdot = dot + 2; | |
69 | struct ext2_dirent *dirent = dotdot + 2; | |
70 | struct ext2_dirent *last = ((void *)dirent) + dirent_len; | |
71 | ||
72 | /* Make sure we fit in one block group */ | |
73 | if (blocks > block_size * 8) | |
74 | return 0; | |
75 | ||
76 | if (filename_len > EXT2_NAME_LEN) | |
77 | return 0; | |
78 | ||
79 | if (data_offset) | |
80 | *data_offset = file_block * block_size; | |
81 | ||
82 | if (!dst) | |
83 | goto out; | |
84 | ||
85 | sblock->total_inodes = cpu_to_le32(inodes); | |
86 | sblock->total_blocks = cpu_to_le32(blocks); | |
87 | sblock->first_data_block = cpu_to_le32(super_block); | |
88 | sblock->blocks_per_group = cpu_to_le32(blocks); | |
89 | sblock->fragments_per_group = cpu_to_le32(blocks); | |
90 | sblock->inodes_per_group = cpu_to_le32(inodes); | |
91 | sblock->magic = cpu_to_le16(EXT2_MAGIC); | |
92 | /* Done mostly so we can pretend to be (in)compatible */ | |
93 | sblock->revision_level = cpu_to_le32(EXT2_DYNAMIC_REV); | |
94 | /* Not really accurate but it doesn't matter */ | |
95 | sblock->first_inode = cpu_to_le32(EXT2_GOOD_OLD_FIRST_INO); | |
96 | sblock->inode_size = cpu_to_le32(inode_size); | |
97 | sblock->feature_incompat = cpu_to_le32(EXT4_FEATURE_INCOMPAT_EXTENTS); | |
98 | ||
99 | bg->block_id = cpu_to_le32(block_bitmap_block); | |
100 | bg->inode_id = cpu_to_le32(inode_bitmap_block); | |
101 | bg->inode_table_id = cpu_to_le32(inode_table_block); | |
102 | ||
103 | /* | |
104 | * All blocks/inodes are in-use. I don't want to have to deal with | |
105 | * endianness, so just fill everything in. | |
106 | */ | |
107 | memset(dst + block_bitmap_block * block_size, 0xff, block_size * 2); | |
108 | ||
109 | root_inode->mode = cpu_to_le16(S_IFDIR | 0755); | |
110 | root_inode->size = cpu_to_le32(block_size); | |
111 | root_inode->nlinks = cpu_to_le16(3); | |
112 | root_inode->blockcnt = cpu_to_le32(1); | |
113 | root_inode->flags = cpu_to_le32(EXT4_TOPDIR_FL); | |
114 | root_inode->b.blocks.dir_blocks[0] = root_block; | |
115 | ||
116 | file_inode->mode = cpu_to_le16(S_IFREG | 0644); | |
117 | file_inode->size = cpu_to_le32(size); | |
118 | file_inode->nlinks = cpu_to_le16(1); | |
119 | file_inode->blockcnt = cpu_to_le32(file_blocks); | |
120 | file_inode->flags = cpu_to_le32(EXT4_EXTENTS_FL); | |
121 | ext_block->eh_magic = cpu_to_le16(EXT4_EXT_MAGIC); | |
122 | ext_block->eh_entries = cpu_to_le16(1); | |
123 | ext_block->eh_max = cpu_to_le16(sizeof(file_inode->b) / | |
124 | sizeof(*ext_block) - 1); | |
125 | extent->ee_len = cpu_to_le16(file_blocks); | |
126 | extent->ee_start_lo = cpu_to_le16(file_block); | |
127 | ||
128 | /* I'm not sure we need these, but it can't hurt */ | |
129 | dot->inode = cpu_to_le32(root_ino); | |
130 | dot->direntlen = cpu_to_le16(2 * sizeof(*dot)); | |
131 | dot->namelen = 1; | |
132 | dot->filetype = FILETYPE_DIRECTORY; | |
133 | memcpy(dot + 1, ".", dot->namelen); | |
134 | ||
135 | dotdot->inode = cpu_to_le32(root_ino); | |
136 | dotdot->direntlen = cpu_to_le16(2 * sizeof(*dotdot)); | |
137 | dotdot->namelen = 2; | |
138 | dotdot->filetype = FILETYPE_DIRECTORY; | |
139 | memcpy(dotdot + 1, "..", dotdot->namelen); | |
140 | ||
141 | dirent->inode = cpu_to_le32(file_ino); | |
142 | dirent->direntlen = cpu_to_le16(dirent_len); | |
143 | dirent->namelen = filename_len; | |
144 | dirent->filetype = FILETYPE_REG; | |
145 | memcpy(dirent + 1, filename, filename_len); | |
146 | ||
147 | last->direntlen = block_size - dirent_len; | |
148 | ||
149 | out: | |
150 | return (size_t)blocks * block_size; | |
151 | } | |
152 | ||
153 | /** | |
154 | * create_fat() - Create a FAT32 filesystem with a single file | |
155 | * @dst: The location of the new filesystem; MUST be zeroed | |
156 | * @size: The size of the file | |
157 | * @filename: The name of the file | |
158 | * @data_offset: Filled with the offset of the file data from @dst | |
159 | * | |
160 | * Budget mkfs.fat. We use FAT32 (so I don't have to deal with FAT12) with no | |
161 | * info sector, and a single one-sector FAT. This limits us to 64k of data | |
162 | * (enough for anyone). The filename must fit in 8.3. | |
163 | * | |
164 | * If @dst is %NULL, nothing is copied. | |
165 | * | |
166 | * Return: The size of the filesystem in bytes | |
167 | */ | |
168 | static size_t create_fat(void *dst, size_t size, const char *filename, | |
169 | size_t *data_offset) | |
170 | { | |
171 | u16 boot_sector = 0; | |
172 | u16 fat_sector = 1; | |
173 | u32 root_sector = 2; | |
174 | u32 file_sector = 3; | |
175 | ||
176 | u16 sector_size = 512; | |
177 | u32 file_sectors = (size + sector_size - 1) / sector_size; | |
178 | u32 sectors = file_sector + file_sectors; | |
179 | ||
180 | char *ext; | |
181 | size_t filename_len, ext_len; | |
182 | int i; | |
183 | ||
184 | struct boot_sector *bs = dst + boot_sector * sector_size; | |
185 | struct volume_info *vi = (void *)(bs + 1); | |
186 | __le32 *fat = dst + fat_sector * sector_size; | |
187 | struct dir_entry *dirent = dst + root_sector * sector_size; | |
188 | ||
189 | /* Make sure we fit in the FAT */ | |
190 | if (sectors > sector_size / sizeof(u32)) | |
191 | return 0; | |
192 | ||
193 | ext = strchr(filename, '.'); | |
194 | if (ext) { | |
195 | filename_len = ext - filename; | |
196 | ext++; | |
197 | ext_len = strlen(ext); | |
198 | } else { | |
199 | filename_len = strlen(filename); | |
200 | ext_len = 0; | |
201 | } | |
202 | ||
203 | if (filename_len > 8 || ext_len > 3) | |
204 | return 0; | |
205 | ||
206 | if (data_offset) | |
207 | *data_offset = file_sector * sector_size; | |
208 | ||
209 | if (!dst) | |
210 | goto out; | |
211 | ||
212 | bs->sector_size[0] = sector_size & 0xff; | |
213 | bs->sector_size[1] = sector_size >> 8; | |
214 | bs->cluster_size = 1; | |
215 | bs->reserved = cpu_to_le16(fat_sector); | |
216 | bs->fats = 1; | |
217 | bs->media = 0xf8; | |
218 | bs->total_sect = cpu_to_le32(sectors); | |
219 | bs->fat32_length = cpu_to_le32(1); | |
220 | bs->root_cluster = cpu_to_le32(root_sector); | |
221 | ||
222 | vi->ext_boot_sign = 0x29; | |
223 | memcpy(vi->fs_type, FAT32_SIGN, sizeof(vi->fs_type)); | |
224 | ||
225 | memcpy(dst + 0x1fe, "\x55\xAA", 2); | |
226 | ||
227 | fat[0] = cpu_to_le32(0x0ffffff8); | |
228 | fat[1] = cpu_to_le32(0x0fffffff); | |
229 | fat[2] = cpu_to_le32(0x0ffffff8); | |
230 | for (i = file_sector; file_sectors > 1; file_sectors--, i++) | |
231 | fat[i] = cpu_to_le32(i + 1); | |
232 | fat[i] = cpu_to_le32(0x0ffffff8); | |
233 | ||
234 | for (i = 0; i < sizeof(dirent->nameext.name); i++) { | |
235 | if (i < filename_len) | |
236 | dirent->nameext.name[i] = toupper(filename[i]); | |
237 | else | |
238 | dirent->nameext.name[i] = ' '; | |
239 | } | |
240 | ||
241 | for (i = 0; i < sizeof(dirent->nameext.ext); i++) { | |
242 | if (i < ext_len) | |
243 | dirent->nameext.ext[i] = toupper(ext[i]); | |
244 | else | |
245 | dirent->nameext.ext[i] = ' '; | |
246 | } | |
247 | ||
248 | dirent->start = cpu_to_le16(file_sector); | |
249 | dirent->size = cpu_to_le32(size); | |
250 | ||
251 | out: | |
252 | return sectors * sector_size; | |
253 | } | |
254 | ||
255 | typedef size_t (*create_fs_t)(void *, size_t, const char *, size_t *); | |
256 | ||
257 | static int spl_test_fs(struct unit_test_state *uts, const char *test_name, | |
258 | create_fs_t create) | |
259 | { | |
260 | const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME; | |
261 | struct blk_desc *dev_desc; | |
262 | char *data_write, *data_read; | |
263 | void *fs; | |
264 | size_t fs_size, fs_data, fs_blocks, data_size = SPL_TEST_DATA_SIZE; | |
265 | loff_t actread; | |
266 | ||
267 | fs_size = create(NULL, data_size, filename, &fs_data); | |
268 | ut_assert(fs_size); | |
269 | fs = calloc(fs_size, 1); | |
270 | ut_assertnonnull(fs); | |
271 | ||
272 | data_write = fs + fs_data; | |
273 | generate_data(data_write, data_size, test_name); | |
274 | ut_asserteq(fs_size, create(fs, data_size, filename, NULL)); | |
275 | ||
276 | dev_desc = blk_get_devnum_by_uclass_id(UCLASS_MMC, 0); | |
277 | ut_assertnonnull(dev_desc); | |
278 | ut_asserteq(512, dev_desc->blksz); | |
279 | fs_blocks = fs_size / dev_desc->blksz; | |
280 | ut_asserteq(fs_blocks, blk_dwrite(dev_desc, 0, fs_blocks, fs)); | |
281 | ||
282 | /* We have to use malloc so we can call virt_to_phys */ | |
283 | data_read = malloc_cache_aligned(data_size); | |
284 | ut_assertnonnull(data_read); | |
285 | ut_assertok(fs_set_blk_dev_with_part(dev_desc, 0)); | |
286 | ut_assertok(fs_read("/" CONFIG_SPL_FS_LOAD_PAYLOAD_NAME, | |
287 | virt_to_phys(data_read), 0, data_size, &actread)); | |
288 | ut_asserteq(data_size, actread); | |
289 | ut_asserteq_mem(data_write, data_read, data_size); | |
290 | ||
291 | free(data_read); | |
292 | free(fs); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int spl_test_ext(struct unit_test_state *uts) | |
297 | { | |
298 | return spl_test_fs(uts, __func__, create_ext2); | |
299 | } | |
300 | SPL_TEST(spl_test_ext, DM_FLAGS); | |
301 | ||
302 | static int spl_test_fat(struct unit_test_state *uts) | |
303 | { | |
304 | spl_fat_force_reregister(); | |
305 | return spl_test_fs(uts, __func__, create_fat); | |
306 | } | |
307 | SPL_TEST(spl_test_fat, DM_FLAGS); | |
6c5d0d93 | 308 | |
6ba8ecaa SA |
309 | static bool spl_mmc_raw; |
310 | ||
311 | u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device) | |
312 | { | |
313 | return spl_mmc_raw ? MMCSD_MODE_RAW : MMCSD_MODE_FS; | |
314 | } | |
315 | ||
6c5d0d93 | 316 | static int spl_test_mmc_fs(struct unit_test_state *uts, const char *test_name, |
6ba8ecaa SA |
317 | enum spl_test_image type, create_fs_t create_fs, |
318 | bool blk_mode) | |
6c5d0d93 SA |
319 | { |
320 | const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME; | |
321 | struct blk_desc *dev_desc; | |
322 | size_t fs_size, fs_data, img_size, img_data, | |
5b3debc6 | 323 | plain_size = SPL_TEST_DATA_SIZE; |
6c5d0d93 SA |
324 | struct spl_image_info info_write = { |
325 | .name = test_name, | |
5b3debc6 SA |
326 | .size = type == LEGACY_LZMA ? lzma_compressed_size : |
327 | plain_size, | |
6c5d0d93 SA |
328 | }, info_read = { }; |
329 | struct disk_partition part = { | |
330 | .start = 1, | |
331 | .sys_ind = 0x83, | |
332 | }; | |
6ba8ecaa SA |
333 | struct spl_image_loader *loader = |
334 | SPL_LOAD_IMAGE_GET(0, BOOT_DEVICE_MMC1, spl_mmc_load_image); | |
335 | struct spl_boot_device bootdev = { | |
336 | .boot_device = loader->boot_device, | |
337 | }; | |
6c5d0d93 | 338 | void *fs; |
5b3debc6 | 339 | char *data, *plain; |
6c5d0d93 SA |
340 | |
341 | img_size = create_image(NULL, type, &info_write, &img_data); | |
342 | ut_assert(img_size); | |
343 | fs_size = create_fs(NULL, img_size, filename, &fs_data); | |
344 | ut_assert(fs_size); | |
345 | fs = calloc(fs_size, 1); | |
346 | ut_assertnonnull(fs); | |
347 | ||
348 | data = fs + fs_data + img_data; | |
5b3debc6 SA |
349 | if (type == LEGACY_LZMA) { |
350 | plain = malloc(plain_size); | |
351 | ut_assertnonnull(plain); | |
352 | generate_data(plain, plain_size, "lzma"); | |
353 | memcpy(data, lzma_compressed, lzma_compressed_size); | |
354 | } else { | |
355 | plain = data; | |
356 | generate_data(plain, plain_size, test_name); | |
357 | } | |
6c5d0d93 SA |
358 | ut_asserteq(img_size, create_image(fs + fs_data, type, &info_write, |
359 | NULL)); | |
360 | ut_asserteq(fs_size, create_fs(fs, img_size, filename, NULL)); | |
361 | ||
362 | dev_desc = blk_get_devnum_by_uclass_id(UCLASS_MMC, 0); | |
363 | ut_assertnonnull(dev_desc); | |
364 | ||
365 | ut_asserteq(512, dev_desc->blksz); | |
366 | part.size = fs_size / dev_desc->blksz; | |
367 | ut_assertok(write_mbr_partitions(dev_desc, &part, 1, 0)); | |
368 | ut_asserteq(part.size, blk_dwrite(dev_desc, part.start, part.size, fs)); | |
369 | ||
6ba8ecaa SA |
370 | spl_mmc_raw = false; |
371 | if (blk_mode) | |
372 | ut_assertok(spl_blk_load_image(&info_read, &bootdev, UCLASS_MMC, | |
373 | 0, 1)); | |
374 | else | |
375 | ut_assertok(loader->load_image(&info_read, &bootdev)); | |
6c5d0d93 SA |
376 | if (check_image_info(uts, &info_write, &info_read)) |
377 | return CMD_RET_FAILURE; | |
5b3debc6 SA |
378 | if (type == LEGACY_LZMA) |
379 | ut_asserteq(plain_size, info_read.size); | |
380 | ut_asserteq_mem(plain, phys_to_virt(info_write.load_addr), plain_size); | |
6c5d0d93 | 381 | |
5b3debc6 SA |
382 | if (type == LEGACY_LZMA) |
383 | free(plain); | |
6c5d0d93 SA |
384 | free(fs); |
385 | return 0; | |
386 | } | |
387 | ||
388 | static int spl_test_blk(struct unit_test_state *uts, const char *test_name, | |
389 | enum spl_test_image type) | |
390 | { | |
391 | spl_fat_force_reregister(); | |
6ba8ecaa | 392 | if (spl_test_mmc_fs(uts, test_name, type, create_fat, true)) |
6c5d0d93 SA |
393 | return CMD_RET_FAILURE; |
394 | ||
6ba8ecaa | 395 | return spl_test_mmc_fs(uts, test_name, type, create_ext2, true); |
6c5d0d93 SA |
396 | } |
397 | SPL_IMG_TEST(spl_test_blk, LEGACY, DM_FLAGS); | |
6029a0e1 SA |
398 | SPL_IMG_TEST(spl_test_blk, LEGACY_LZMA, DM_FLAGS); |
399 | SPL_IMG_TEST(spl_test_blk, IMX8, DM_FLAGS); | |
6c5d0d93 SA |
400 | SPL_IMG_TEST(spl_test_blk, FIT_EXTERNAL, DM_FLAGS); |
401 | SPL_IMG_TEST(spl_test_blk, FIT_INTERNAL, DM_FLAGS); | |
6ba8ecaa SA |
402 | |
403 | static int spl_test_mmc_write_image(struct unit_test_state *uts, void *img, | |
404 | size_t img_size) | |
405 | { | |
406 | struct blk_desc *dev_desc; | |
407 | size_t img_blocks; | |
408 | ||
409 | dev_desc = blk_get_devnum_by_uclass_id(UCLASS_MMC, 0); | |
410 | ut_assertnonnull(dev_desc); | |
411 | ||
412 | img_blocks = DIV_ROUND_UP(img_size, dev_desc->blksz); | |
413 | ut_asserteq(img_blocks, blk_dwrite(dev_desc, | |
414 | CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, | |
415 | img_blocks, img)); | |
416 | ||
417 | spl_mmc_raw = true; | |
418 | return 0; | |
419 | } | |
420 | ||
421 | static int spl_test_mmc(struct unit_test_state *uts, const char *test_name, | |
422 | enum spl_test_image type) | |
423 | { | |
424 | spl_mmc_clear_cache(); | |
425 | spl_fat_force_reregister(); | |
426 | ||
b8ed7225 | 427 | if (spl_test_mmc_fs(uts, test_name, type, create_ext2, false)) |
6ba8ecaa SA |
428 | return CMD_RET_FAILURE; |
429 | ||
682184e9 | 430 | if (spl_test_mmc_fs(uts, test_name, type, create_fat, false)) |
6ba8ecaa SA |
431 | return CMD_RET_FAILURE; |
432 | ||
433 | return do_spl_test_load(uts, test_name, type, | |
434 | SPL_LOAD_IMAGE_GET(0, BOOT_DEVICE_MMC1, | |
435 | spl_mmc_load_image), | |
436 | spl_test_mmc_write_image); | |
437 | } | |
438 | SPL_IMG_TEST(spl_test_mmc, LEGACY, DM_FLAGS); | |
b8ed7225 | 439 | SPL_IMG_TEST(spl_test_mmc, LEGACY_LZMA, DM_FLAGS); |
6ba8ecaa SA |
440 | SPL_IMG_TEST(spl_test_mmc, IMX8, DM_FLAGS); |
441 | SPL_IMG_TEST(spl_test_mmc, FIT_EXTERNAL, DM_FLAGS); | |
442 | SPL_IMG_TEST(spl_test_mmc, FIT_INTERNAL, DM_FLAGS); |