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16#include <efi_selftest.h>
17#include "efi_selftest_disk_image.h"
18#include <asm/cache.h>
19
20
21#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8
22
23
24#define LB_BLOCK_SIZE 9
25
26static struct efi_boot_services *boottime;
27
28static const efi_guid_t block_io_protocol_guid = EFI_BLOCK_IO_PROTOCOL_GUID;
29static const efi_guid_t guid_device_path = EFI_DEVICE_PATH_PROTOCOL_GUID;
30static const efi_guid_t guid_simple_file_system_protocol =
31 EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
32static const efi_guid_t guid_file_system_info = EFI_FILE_SYSTEM_INFO_GUID;
33static efi_guid_t guid_vendor =
34 EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
35 0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xb7, 0xb8);
36
37static struct efi_device_path *dp;
38
39
40struct line {
41 size_t addr;
42 char *line;
43};
44
45
46struct compressed_disk_image {
47 size_t length;
48 struct line lines[];
49};
50
51static const struct compressed_disk_image img = EFI_ST_DISK_IMG;
52
53
54static u8 *image;
55
56
57
58
59
60
61
62static efi_status_t EFIAPI reset(
63 struct efi_block_io *this,
64 char extended_verification)
65{
66 return EFI_SUCCESS;
67}
68
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77
78
79static efi_status_t EFIAPI read_blocks(
80 struct efi_block_io *this, u32 media_id, u64 lba,
81 efi_uintn_t buffer_size, void *buffer)
82{
83 u8 *start;
84
85 if ((lba << LB_BLOCK_SIZE) + buffer_size > img.length)
86 return EFI_INVALID_PARAMETER;
87 start = image + (lba << LB_BLOCK_SIZE);
88
89 boottime->copy_mem(buffer, start, buffer_size);
90
91 return EFI_SUCCESS;
92}
93
94
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101
102
103
104static efi_status_t EFIAPI write_blocks(
105 struct efi_block_io *this, u32 media_id, u64 lba,
106 efi_uintn_t buffer_size, void *buffer)
107{
108 u8 *start;
109
110 if ((lba << LB_BLOCK_SIZE) + buffer_size > img.length)
111 return EFI_INVALID_PARAMETER;
112 start = image + (lba << LB_BLOCK_SIZE);
113
114 boottime->copy_mem(start, buffer, buffer_size);
115
116 return EFI_SUCCESS;
117}
118
119
120
121
122
123
124
125static efi_status_t EFIAPI flush_blocks(struct efi_block_io *this)
126{
127 return EFI_SUCCESS;
128}
129
130
131
132
133
134
135
136static efi_status_t decompress(u8 **image)
137{
138 u8 *buf;
139 size_t i;
140 size_t addr;
141 size_t len;
142 efi_status_t ret;
143
144 ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length,
145 (void **)&buf);
146 if (ret != EFI_SUCCESS) {
147 efi_st_error("Out of memory\n");
148 return ret;
149 }
150 boottime->set_mem(buf, img.length, 0);
151
152 for (i = 0; ; ++i) {
153 if (!img.lines[i].line)
154 break;
155 addr = img.lines[i].addr;
156 len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
157 if (addr + len > img.length)
158 len = img.length - addr;
159 boottime->copy_mem(buf + addr, img.lines[i].line, len);
160 }
161 *image = buf;
162 return ret;
163}
164
165static struct efi_block_io_media media;
166
167static struct efi_block_io block_io = {
168 .media = &media,
169 .reset = reset,
170 .read_blocks = read_blocks,
171 .write_blocks = write_blocks,
172 .flush_blocks = flush_blocks,
173};
174
175
176static efi_handle_t disk_handle;
177
178
179
180
181
182
183
184
185static int setup(const efi_handle_t handle,
186 const struct efi_system_table *systable)
187{
188 efi_status_t ret;
189 struct efi_device_path_vendor vendor_node;
190 struct efi_device_path end_node;
191
192 boottime = systable->boottime;
193
194 decompress(&image);
195
196 block_io.media->block_size = 1 << LB_BLOCK_SIZE;
197 block_io.media->last_block = img.length >> LB_BLOCK_SIZE;
198
199 ret = boottime->install_protocol_interface(
200 &disk_handle, &block_io_protocol_guid,
201 EFI_NATIVE_INTERFACE, &block_io);
202 if (ret != EFI_SUCCESS) {
203 efi_st_error("Failed to install block I/O protocol\n");
204 return EFI_ST_FAILURE;
205 }
206
207 ret = boottime->allocate_pool(EFI_LOADER_DATA,
208 sizeof(struct efi_device_path_vendor) +
209 sizeof(struct efi_device_path),
210 (void **)&dp);
211 if (ret != EFI_SUCCESS) {
212 efi_st_error("Out of memory\n");
213 return EFI_ST_FAILURE;
214 }
215 vendor_node.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
216 vendor_node.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
217 vendor_node.dp.length = sizeof(struct efi_device_path_vendor);
218
219 boottime->copy_mem(&vendor_node.guid, &guid_vendor,
220 sizeof(efi_guid_t));
221 boottime->copy_mem(dp, &vendor_node,
222 sizeof(struct efi_device_path_vendor));
223 end_node.type = DEVICE_PATH_TYPE_END;
224 end_node.sub_type = DEVICE_PATH_SUB_TYPE_END;
225 end_node.length = sizeof(struct efi_device_path);
226
227 boottime->copy_mem((char *)dp + sizeof(struct efi_device_path_vendor),
228 &end_node, sizeof(struct efi_device_path));
229 ret = boottime->install_protocol_interface(&disk_handle,
230 &guid_device_path,
231 EFI_NATIVE_INTERFACE,
232 dp);
233 if (ret != EFI_SUCCESS) {
234 efi_st_error("InstallProtocolInterface failed\n");
235 return EFI_ST_FAILURE;
236 }
237 return EFI_ST_SUCCESS;
238}
239
240
241
242
243
244
245static int teardown(void)
246{
247 efi_status_t r = EFI_ST_SUCCESS;
248
249 if (disk_handle) {
250 r = boottime->uninstall_protocol_interface(disk_handle,
251 &guid_device_path,
252 dp);
253 if (r != EFI_SUCCESS) {
254 efi_st_error("Uninstall device path failed\n");
255 return EFI_ST_FAILURE;
256 }
257 r = boottime->uninstall_protocol_interface(
258 disk_handle, &block_io_protocol_guid,
259 &block_io);
260 if (r != EFI_SUCCESS) {
261 efi_st_error(
262 "Failed to uninstall block I/O protocol\n");
263 return EFI_ST_FAILURE;
264 }
265 }
266
267 if (image) {
268 r = boottime->free_pool(image);
269 if (r != EFI_SUCCESS) {
270 efi_st_error("Failed to free image\n");
271 return EFI_ST_FAILURE;
272 }
273 }
274 return r;
275}
276
277
278
279
280
281
282
283static efi_uintn_t dp_size(struct efi_device_path *dp)
284{
285 struct efi_device_path *pos = dp;
286
287 while (pos->type != DEVICE_PATH_TYPE_END)
288 pos = (struct efi_device_path *)((char *)pos + pos->length);
289 return (char *)pos - (char *)dp;
290}
291
292
293
294
295
296
297static int execute(void)
298{
299 efi_status_t ret;
300 efi_uintn_t no_handles, i, len;
301 efi_handle_t *handles;
302 efi_handle_t handle_partition = NULL;
303 struct efi_device_path *dp_partition;
304 struct efi_simple_file_system_protocol *file_system;
305 struct efi_file_handle *root, *file;
306 struct {
307 struct efi_file_system_info info;
308 u16 label[12];
309 } system_info;
310 efi_uintn_t buf_size;
311 char buf[16] __aligned(ARCH_DMA_MINALIGN);
312 u64 pos;
313
314
315 ret = boottime->connect_controller(disk_handle, NULL, NULL, 1);
316 if (ret != EFI_SUCCESS) {
317 efi_st_error("Failed to connect controller\n");
318 return EFI_ST_FAILURE;
319 }
320
321
322 ret = boottime->locate_handle_buffer(
323 BY_PROTOCOL, &guid_device_path, NULL,
324 &no_handles, &handles);
325 if (ret != EFI_SUCCESS) {
326 efi_st_error("Failed to locate handles\n");
327 return EFI_ST_FAILURE;
328 }
329 len = dp_size(dp);
330 for (i = 0; i < no_handles; ++i) {
331 ret = boottime->open_protocol(handles[i], &guid_device_path,
332 (void **)&dp_partition,
333 NULL, NULL,
334 EFI_OPEN_PROTOCOL_GET_PROTOCOL);
335 if (ret != EFI_SUCCESS) {
336 efi_st_error("Failed to open device path protocol\n");
337 return EFI_ST_FAILURE;
338 }
339 if (len >= dp_size(dp_partition))
340 continue;
341 if (memcmp(dp, dp_partition, len))
342 continue;
343 handle_partition = handles[i];
344 break;
345 }
346 ret = boottime->free_pool(handles);
347 if (ret != EFI_SUCCESS) {
348 efi_st_error("Failed to free pool memory\n");
349 return EFI_ST_FAILURE;
350 }
351 if (!handle_partition) {
352 efi_st_error("Partition handle not found\n");
353 return EFI_ST_FAILURE;
354 }
355
356
357 ret = boottime->open_protocol(handle_partition,
358 &guid_simple_file_system_protocol,
359 (void **)&file_system, NULL, NULL,
360 EFI_OPEN_PROTOCOL_GET_PROTOCOL);
361 if (ret != EFI_SUCCESS) {
362 efi_st_error("Failed to open simple file system protocol\n");
363 return EFI_ST_FAILURE;
364 }
365
366
367 ret = file_system->open_volume(file_system, &root);
368 if (ret != EFI_SUCCESS) {
369 efi_st_error("Failed to open volume\n");
370 return EFI_ST_FAILURE;
371 }
372 buf_size = sizeof(system_info);
373 ret = root->getinfo(root, &guid_file_system_info, &buf_size,
374 &system_info);
375 if (ret != EFI_SUCCESS) {
376 efi_st_error("Failed to get file system info\n");
377 return EFI_ST_FAILURE;
378 }
379 if (system_info.info.block_size != 512) {
380 efi_st_error("Wrong block size %u, expected 512\n",
381 system_info.info.block_size);
382 return EFI_ST_FAILURE;
383 }
384 if (efi_st_strcmp_16_8(system_info.info.volume_label, "U-BOOT TEST")) {
385 efi_st_todo(
386 "Wrong volume label '%ps', expected 'U-BOOT TEST'\n",
387 system_info.info.volume_label);
388 }
389
390
391 ret = root->open(root, &file, L"hello.txt", EFI_FILE_MODE_READ,
392 0);
393 if (ret != EFI_SUCCESS) {
394 efi_st_error("Failed to open file\n");
395 return EFI_ST_FAILURE;
396 }
397 ret = file->setpos(file, 1);
398 if (ret != EFI_SUCCESS) {
399 efi_st_error("SetPosition failed\n");
400 return EFI_ST_FAILURE;
401 }
402 buf_size = sizeof(buf) - 1;
403 ret = file->read(file, &buf_size, buf);
404 if (ret != EFI_SUCCESS) {
405 efi_st_error("Failed to read file\n");
406 return EFI_ST_FAILURE;
407 }
408 if (buf_size != 12) {
409 efi_st_error("Wrong number of bytes read: %u\n",
410 (unsigned int)buf_size);
411 return EFI_ST_FAILURE;
412 }
413 if (memcmp(buf, "ello world!", 11)) {
414 efi_st_error("Unexpected file content\n");
415 return EFI_ST_FAILURE;
416 }
417 ret = file->getpos(file, &pos);
418 if (ret != EFI_SUCCESS) {
419 efi_st_error("GetPosition failed\n");
420 return EFI_ST_FAILURE;
421 }
422 if (pos != 13) {
423 efi_st_error("GetPosition returned %u, expected 13\n",
424 (unsigned int)pos);
425 return EFI_ST_FAILURE;
426 }
427 ret = file->close(file);
428 if (ret != EFI_SUCCESS) {
429 efi_st_error("Failed to close file\n");
430 return EFI_ST_FAILURE;
431 }
432
433#ifdef CONFIG_FAT_WRITE
434
435 ret = root->open(root, &file, L"u-boot.txt", EFI_FILE_MODE_READ |
436 EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE, 0);
437 if (ret != EFI_SUCCESS) {
438 efi_st_error("Failed to open file\n");
439 return EFI_ST_FAILURE;
440 }
441 buf_size = 7;
442 boottime->set_mem(buf, sizeof(buf), 0);
443 boottime->copy_mem(buf, "U-Boot", buf_size);
444 ret = file->write(file, &buf_size, buf);
445 if (ret != EFI_SUCCESS || buf_size != 7) {
446 efi_st_error("Failed to write file\n");
447 return EFI_ST_FAILURE;
448 }
449 ret = file->getpos(file, &pos);
450 if (ret != EFI_SUCCESS) {
451 efi_st_error("GetPosition failed\n");
452 return EFI_ST_FAILURE;
453 }
454 if (pos != 7) {
455 efi_st_error("GetPosition returned %u, expected 7\n",
456 (unsigned int)pos);
457 return EFI_ST_FAILURE;
458 }
459 ret = file->close(file);
460 if (ret != EFI_SUCCESS) {
461 efi_st_error("Failed to close file\n");
462 return EFI_ST_FAILURE;
463 }
464
465
466 boottime->set_mem(buf, sizeof(buf), 0);
467 ret = root->open(root, &file, L"u-boot.txt", EFI_FILE_MODE_READ,
468 0);
469 if (ret != EFI_SUCCESS) {
470 efi_st_error("Failed to open file\n");
471 return EFI_ST_FAILURE;
472 }
473 buf_size = sizeof(buf) - 1;
474 ret = file->read(file, &buf_size, buf);
475 if (ret != EFI_SUCCESS) {
476 efi_st_error("Failed to read file\n");
477 return EFI_ST_FAILURE;
478 }
479 if (buf_size != 7) {
480 efi_st_error("Wrong number of bytes read: %u\n",
481 (unsigned int)buf_size);
482 return EFI_ST_FAILURE;
483 }
484 if (memcmp(buf, "U-Boot", 7)) {
485 efi_st_error("Unexpected file content %s\n", buf);
486 return EFI_ST_FAILURE;
487 }
488 ret = file->close(file);
489 if (ret != EFI_SUCCESS) {
490 efi_st_error("Failed to close file\n");
491 return EFI_ST_FAILURE;
492 }
493#else
494 efi_st_todo("CONFIG_FAT_WRITE is not set\n");
495#endif
496
497
498 ret = root->close(root);
499 if (ret != EFI_SUCCESS) {
500 efi_st_error("Failed to close volume\n");
501 return EFI_ST_FAILURE;
502 }
503
504 return EFI_ST_SUCCESS;
505}
506
507EFI_UNIT_TEST(blkdev) = {
508 .name = "block device",
509 .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
510 .setup = setup,
511 .execute = execute,
512 .teardown = teardown,
513};
514
