]>
Commit | Line | Data |
---|---|---|
affae2bf WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
affae2bf WD |
6 | */ |
7 | ||
8 | #include <common.h> | |
9 | #include <command.h> | |
96e5b03c | 10 | #include <errno.h> |
affae2bf | 11 | #include <ide.h> |
10a37fd7 | 12 | #include <malloc.h> |
735dd97b | 13 | #include <part.h> |
251cee0d | 14 | #include <ubifs_uboot.h> |
affae2bf WD |
15 | |
16 | #undef PART_DEBUG | |
17 | ||
18 | #ifdef PART_DEBUG | |
19 | #define PRINTF(fmt,args...) printf (fmt ,##args) | |
20 | #else | |
21 | #define PRINTF(fmt,args...) | |
22 | #endif | |
23 | ||
d96a9804 | 24 | const struct block_drvr block_drvr[] = { |
cde5c64d | 25 | #if defined(CONFIG_CMD_IDE) |
74001a25 | 26 | { .name = "ide", }, |
735dd97b | 27 | #endif |
c7057b52 | 28 | #if defined(CONFIG_CMD_SATA) |
4e7189d4 | 29 | {.name = "sata", }, |
c7057b52 | 30 | #endif |
c649e3c9 | 31 | #if defined(CONFIG_SCSI) |
edd82ab3 | 32 | { .name = "scsi", }, |
735dd97b | 33 | #endif |
cde5c64d | 34 | #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE) |
57ebf67b | 35 | { .name = "usb", }, |
735dd97b GL |
36 | #endif |
37 | #if defined(CONFIG_MMC) | |
d2356284 SW |
38 | { |
39 | .name = "mmc", | |
d2356284 SW |
40 | .select_hwpart = mmc_select_hwpart, |
41 | }, | |
735dd97b GL |
42 | #endif |
43 | #if defined(CONFIG_SYSTEMACE) | |
f6d000ed | 44 | { .name = "ace", }, |
f4d8de48 HN |
45 | #endif |
46 | #if defined(CONFIG_SANDBOX) | |
f1d86fd3 | 47 | { .name = "host", }, |
735dd97b GL |
48 | #endif |
49 | { }, | |
50 | }; | |
51 | ||
751bb571 | 52 | DECLARE_GLOBAL_DATA_PTR; |
751bb571 | 53 | |
0c9c8fb5 | 54 | #ifdef HAVE_BLOCK_DEVICE |
96e5b03c SG |
55 | static struct part_driver *part_driver_lookup_type(int part_type) |
56 | { | |
57 | struct part_driver *drv = | |
58 | ll_entry_start(struct part_driver, part_driver); | |
59 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
60 | struct part_driver *entry; | |
61 | ||
62 | for (entry = drv; entry != drv + n_ents; entry++) { | |
63 | if (part_type == entry->part_type) | |
64 | return entry; | |
65 | } | |
66 | ||
67 | /* Not found */ | |
68 | return NULL; | |
69 | } | |
70 | ||
4101f687 | 71 | static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) |
735dd97b GL |
72 | { |
73 | const struct block_drvr *drvr = block_drvr; | |
336b6f90 | 74 | int (*select_hwpart)(int dev_num, int hwpart); |
23090dac | 75 | char *name; |
336b6f90 | 76 | int ret; |
735dd97b | 77 | |
7e71dc68 TK |
78 | if (!ifname) |
79 | return NULL; | |
80 | ||
23090dac | 81 | name = drvr->name; |
2e5167cc | 82 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
23090dac HS |
83 | name += gd->reloc_off; |
84 | #endif | |
b16aadf4 | 85 | while (drvr->name) { |
23090dac | 86 | name = drvr->name; |
336b6f90 | 87 | select_hwpart = drvr->select_hwpart; |
2e5167cc | 88 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
23090dac | 89 | name += gd->reloc_off; |
336b6f90 SW |
90 | if (select_hwpart) |
91 | select_hwpart += gd->reloc_off; | |
521af04d | 92 | #endif |
336b6f90 | 93 | if (strncmp(ifname, name, strlen(name)) == 0) { |
a6331fa8 SG |
94 | struct blk_desc *dev_desc; |
95 | ||
96 | dev_desc = blk_get_devnum_by_typename(name, dev); | |
336b6f90 SW |
97 | if (!dev_desc) |
98 | return NULL; | |
ecdd57e2 | 99 | if (hwpart == 0 && !select_hwpart) |
336b6f90 SW |
100 | return dev_desc; |
101 | if (!select_hwpart) | |
102 | return NULL; | |
bcce53d0 | 103 | ret = select_hwpart(dev_desc->devnum, hwpart); |
336b6f90 SW |
104 | if (ret < 0) |
105 | return NULL; | |
106 | return dev_desc; | |
107 | } | |
735dd97b GL |
108 | drvr++; |
109 | } | |
110 | return NULL; | |
111 | } | |
336b6f90 | 112 | |
db1d9e78 | 113 | struct blk_desc *blk_get_dev(const char *ifname, int dev) |
336b6f90 | 114 | { |
ecdd57e2 | 115 | return get_dev_hwpart(ifname, dev, 0); |
336b6f90 | 116 | } |
735dd97b | 117 | #else |
4101f687 | 118 | struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) |
336b6f90 SW |
119 | { |
120 | return NULL; | |
121 | } | |
122 | ||
db1d9e78 | 123 | struct blk_desc *blk_get_dev(const char *ifname, int dev) |
735dd97b GL |
124 | { |
125 | return NULL; | |
126 | } | |
127 | #endif | |
128 | ||
0c9c8fb5 | 129 | #ifdef HAVE_BLOCK_DEVICE |
affae2bf WD |
130 | |
131 | /* ------------------------------------------------------------------------- */ | |
132 | /* | |
133 | * reports device info to the user | |
134 | */ | |
69a2a4d9 | 135 | |
42dfe7a1 | 136 | #ifdef CONFIG_LBA48 |
69a2a4d9 | 137 | typedef uint64_t lba512_t; |
c40b2956 | 138 | #else |
69a2a4d9 | 139 | typedef lbaint_t lba512_t; |
c40b2956 | 140 | #endif |
affae2bf | 141 | |
69a2a4d9 ST |
142 | /* |
143 | * Overflowless variant of (block_count * mul_by / div_by) | |
144 | * when div_by > mul_by | |
145 | */ | |
214b3f31 | 146 | static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, lba512_t div_by) |
69a2a4d9 ST |
147 | { |
148 | lba512_t bc_quot, bc_rem; | |
149 | ||
150 | /* x * m / d == x / d * m + (x % d) * m / d */ | |
151 | bc_quot = block_count / div_by; | |
152 | bc_rem = block_count - div_by * bc_quot; | |
153 | return bc_quot * mul_by + (bc_rem * mul_by) / div_by; | |
154 | } | |
155 | ||
4101f687 | 156 | void dev_print (struct blk_desc *dev_desc) |
69a2a4d9 ST |
157 | { |
158 | lba512_t lba512; /* number of blocks if 512bytes block size */ | |
159 | ||
af75a45d WD |
160 | if (dev_desc->type == DEV_TYPE_UNKNOWN) { |
161 | puts ("not available\n"); | |
162 | return; | |
163 | } | |
164 | ||
8ec6e332 | 165 | switch (dev_desc->if_type) { |
574b3195 DZ |
166 | case IF_TYPE_SCSI: |
167 | printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n", | |
168 | dev_desc->target,dev_desc->lun, | |
affae2bf | 169 | dev_desc->vendor, |
574b3195 DZ |
170 | dev_desc->product, |
171 | dev_desc->revision); | |
172 | break; | |
6e24a1eb | 173 | case IF_TYPE_ATAPI: |
574b3195 DZ |
174 | case IF_TYPE_IDE: |
175 | case IF_TYPE_SATA: | |
c7057b52 DL |
176 | printf ("Model: %s Firm: %s Ser#: %s\n", |
177 | dev_desc->vendor, | |
178 | dev_desc->revision, | |
179 | dev_desc->product); | |
574b3195 | 180 | break; |
6e24a1eb RB |
181 | case IF_TYPE_SD: |
182 | case IF_TYPE_MMC: | |
47bebe34 NCL |
183 | case IF_TYPE_USB: |
184 | printf ("Vendor: %s Rev: %s Prod: %s\n", | |
185 | dev_desc->vendor, | |
186 | dev_desc->revision, | |
187 | dev_desc->product); | |
188 | break; | |
6e24a1eb RB |
189 | case IF_TYPE_DOC: |
190 | puts("device type DOC\n"); | |
191 | return; | |
8ec6e332 | 192 | case IF_TYPE_UNKNOWN: |
6e24a1eb RB |
193 | puts("device type unknown\n"); |
194 | return; | |
574b3195 | 195 | default: |
6e24a1eb | 196 | printf("Unhandled device type: %i\n", dev_desc->if_type); |
574b3195 | 197 | return; |
affae2bf WD |
198 | } |
199 | puts (" Type: "); | |
200 | if (dev_desc->removable) | |
201 | puts ("Removable "); | |
202 | switch (dev_desc->type & 0x1F) { | |
726c0f1e DZ |
203 | case DEV_TYPE_HARDDISK: |
204 | puts ("Hard Disk"); | |
205 | break; | |
206 | case DEV_TYPE_CDROM: | |
207 | puts ("CD ROM"); | |
208 | break; | |
209 | case DEV_TYPE_OPDISK: | |
210 | puts ("Optical Device"); | |
211 | break; | |
212 | case DEV_TYPE_TAPE: | |
213 | puts ("Tape"); | |
214 | break; | |
215 | default: | |
216 | printf ("# %02X #", dev_desc->type & 0x1F); | |
217 | break; | |
affae2bf WD |
218 | } |
219 | puts ("\n"); | |
33699df1 | 220 | if (dev_desc->lba > 0L && dev_desc->blksz > 0L) { |
affae2bf | 221 | ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem; |
c40b2956 | 222 | lbaint_t lba; |
6e592385 WD |
223 | |
224 | lba = dev_desc->lba; | |
affae2bf | 225 | |
c40b2956 | 226 | lba512 = (lba * (dev_desc->blksz/512)); |
affae2bf | 227 | /* round to 1 digit */ |
214b3f31 PM |
228 | /* 2048 = (1024 * 1024) / 512 MB */ |
229 | mb = lba512_muldiv(lba512, 10, 2048); | |
69a2a4d9 | 230 | |
affae2bf WD |
231 | mb_quot = mb / 10; |
232 | mb_rem = mb - (10 * mb_quot); | |
233 | ||
234 | gb = mb / 1024; | |
235 | gb_quot = gb / 10; | |
236 | gb_rem = gb - (10 * gb_quot); | |
42dfe7a1 | 237 | #ifdef CONFIG_LBA48 |
6e592385 | 238 | if (dev_desc->lba48) |
c40b2956 WD |
239 | printf (" Supports 48-bit addressing\n"); |
240 | #endif | |
4b142feb | 241 | #if defined(CONFIG_SYS_64BIT_LBA) |
6c6166f5 | 242 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n", |
c40b2956 WD |
243 | mb_quot, mb_rem, |
244 | gb_quot, gb_rem, | |
245 | lba, | |
246 | dev_desc->blksz); | |
247 | #else | |
affae2bf WD |
248 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n", |
249 | mb_quot, mb_rem, | |
250 | gb_quot, gb_rem, | |
c40b2956 | 251 | (ulong)lba, |
affae2bf | 252 | dev_desc->blksz); |
c40b2956 | 253 | #endif |
affae2bf WD |
254 | } else { |
255 | puts (" Capacity: not available\n"); | |
256 | } | |
257 | } | |
b3aff0cb | 258 | #endif |
affae2bf | 259 | |
0c9c8fb5 | 260 | #ifdef HAVE_BLOCK_DEVICE |
affae2bf | 261 | |
3e8bd469 | 262 | void part_init(struct blk_desc *dev_desc) |
affae2bf | 263 | { |
96e5b03c SG |
264 | struct part_driver *drv = |
265 | ll_entry_start(struct part_driver, part_driver); | |
266 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
267 | struct part_driver *entry; | |
affae2bf | 268 | |
e40cf34a EN |
269 | blkcache_invalidate(dev_desc->if_type, dev_desc->devnum); |
270 | ||
99d2c205 | 271 | dev_desc->part_type = PART_TYPE_UNKNOWN; |
96e5b03c SG |
272 | for (entry = drv; entry != drv + n_ents; entry++) { |
273 | int ret; | |
274 | ||
275 | ret = entry->test(dev_desc); | |
276 | debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret); | |
277 | if (!ret) { | |
278 | dev_desc->part_type = entry->part_type; | |
279 | break; | |
280 | } | |
281 | } | |
affae2bf WD |
282 | } |
283 | ||
96e5b03c SG |
284 | static void print_part_header(const char *type, struct blk_desc *dev_desc) |
285 | { | |
0c9c8fb5 GB |
286 | #if defined(CONFIG_MAC_PARTITION) || \ |
287 | defined(CONFIG_DOS_PARTITION) || \ | |
288 | defined(CONFIG_ISO_PARTITION) || \ | |
289 | defined(CONFIG_AMIGA_PARTITION) || \ | |
290 | defined(CONFIG_EFI_PARTITION) | |
affae2bf WD |
291 | puts ("\nPartition Map for "); |
292 | switch (dev_desc->if_type) { | |
726c0f1e DZ |
293 | case IF_TYPE_IDE: |
294 | puts ("IDE"); | |
295 | break; | |
296 | case IF_TYPE_SATA: | |
297 | puts ("SATA"); | |
298 | break; | |
299 | case IF_TYPE_SCSI: | |
300 | puts ("SCSI"); | |
301 | break; | |
302 | case IF_TYPE_ATAPI: | |
303 | puts ("ATAPI"); | |
304 | break; | |
305 | case IF_TYPE_USB: | |
306 | puts ("USB"); | |
307 | break; | |
308 | case IF_TYPE_DOC: | |
309 | puts ("DOC"); | |
310 | break; | |
8f3b9642 LW |
311 | case IF_TYPE_MMC: |
312 | puts ("MMC"); | |
313 | break; | |
f4d8de48 HN |
314 | case IF_TYPE_HOST: |
315 | puts("HOST"); | |
316 | break; | |
726c0f1e DZ |
317 | default: |
318 | puts ("UNKNOWN"); | |
319 | break; | |
affae2bf WD |
320 | } |
321 | printf (" device %d -- Partition Type: %s\n\n", | |
bcce53d0 | 322 | dev_desc->devnum, type); |
0c9c8fb5 | 323 | #endif /* any CONFIG_..._PARTITION */ |
96e5b03c | 324 | } |
0c9c8fb5 | 325 | |
3e8bd469 | 326 | void part_print(struct blk_desc *dev_desc) |
affae2bf | 327 | { |
96e5b03c | 328 | struct part_driver *drv; |
affae2bf | 329 | |
96e5b03c SG |
330 | drv = part_driver_lookup_type(dev_desc->part_type); |
331 | if (!drv) { | |
332 | printf("## Unknown partition table type %x\n", | |
333 | dev_desc->part_type); | |
affae2bf | 334 | return; |
affae2bf | 335 | } |
96e5b03c SG |
336 | |
337 | PRINTF("## Testing for valid %s partition ##\n", drv->name); | |
338 | print_part_header(drv->name, dev_desc); | |
339 | if (drv->print) | |
340 | drv->print(dev_desc); | |
affae2bf WD |
341 | } |
342 | ||
0c9c8fb5 | 343 | #endif /* HAVE_BLOCK_DEVICE */ |
2f501646 | 344 | |
3e8bd469 | 345 | int part_get_info(struct blk_desc *dev_desc, int part, |
3f9eb6e1 | 346 | disk_partition_t *info) |
2f501646 | 347 | { |
0c9c8fb5 | 348 | #ifdef HAVE_BLOCK_DEVICE |
96e5b03c | 349 | struct part_driver *drv; |
2f501646 | 350 | |
894bfbbf SW |
351 | #ifdef CONFIG_PARTITION_UUIDS |
352 | /* The common case is no UUID support */ | |
353 | info->uuid[0] = 0; | |
354 | #endif | |
7561b258 PD |
355 | #ifdef CONFIG_PARTITION_TYPE_GUID |
356 | info->type_guid[0] = 0; | |
357 | #endif | |
894bfbbf | 358 | |
96e5b03c SG |
359 | drv = part_driver_lookup_type(dev_desc->part_type); |
360 | if (!drv) { | |
361 | debug("## Unknown partition table type %x\n", | |
362 | dev_desc->part_type); | |
363 | return -EPROTONOSUPPORT; | |
364 | } | |
365 | if (!drv->get_info) { | |
2ae67aec NM |
366 | PRINTF("## Driver %s does not have the get_info() method\n", |
367 | drv->name); | |
96e5b03c SG |
368 | return -ENOSYS; |
369 | } | |
370 | if (drv->get_info(dev_desc, part, info) == 0) { | |
371 | PRINTF("## Valid %s partition found ##\n", drv->name); | |
372 | return 0; | |
2f501646 | 373 | } |
0c9c8fb5 | 374 | #endif /* HAVE_BLOCK_DEVICE */ |
2f501646 SW |
375 | |
376 | return -1; | |
377 | } | |
99d2c205 | 378 | |
ebac37cf SG |
379 | int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str, |
380 | struct blk_desc **dev_desc) | |
2023e608 SW |
381 | { |
382 | char *ep; | |
336b6f90 SW |
383 | char *dup_str = NULL; |
384 | const char *dev_str, *hwpart_str; | |
385 | int dev, hwpart; | |
386 | ||
387 | hwpart_str = strchr(dev_hwpart_str, '.'); | |
388 | if (hwpart_str) { | |
389 | dup_str = strdup(dev_hwpart_str); | |
390 | dup_str[hwpart_str - dev_hwpart_str] = 0; | |
391 | dev_str = dup_str; | |
392 | hwpart_str++; | |
393 | } else { | |
394 | dev_str = dev_hwpart_str; | |
ecdd57e2 | 395 | hwpart = 0; |
336b6f90 | 396 | } |
2023e608 SW |
397 | |
398 | dev = simple_strtoul(dev_str, &ep, 16); | |
399 | if (*ep) { | |
400 | printf("** Bad device specification %s %s **\n", | |
401 | ifname, dev_str); | |
336b6f90 SW |
402 | dev = -1; |
403 | goto cleanup; | |
404 | } | |
405 | ||
406 | if (hwpart_str) { | |
407 | hwpart = simple_strtoul(hwpart_str, &ep, 16); | |
408 | if (*ep) { | |
409 | printf("** Bad HW partition specification %s %s **\n", | |
410 | ifname, hwpart_str); | |
411 | dev = -1; | |
412 | goto cleanup; | |
413 | } | |
2023e608 SW |
414 | } |
415 | ||
336b6f90 | 416 | *dev_desc = get_dev_hwpart(ifname, dev, hwpart); |
2023e608 | 417 | if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) { |
336b6f90 SW |
418 | printf("** Bad device %s %s **\n", ifname, dev_hwpart_str); |
419 | dev = -1; | |
420 | goto cleanup; | |
2023e608 SW |
421 | } |
422 | ||
99e7fc8a ET |
423 | #ifdef HAVE_BLOCK_DEVICE |
424 | /* | |
425 | * Updates the partition table for the specified hw partition. | |
426 | * Does not need to be done for hwpart 0 since it is default and | |
427 | * already loaded. | |
428 | */ | |
429 | if(hwpart != 0) | |
3e8bd469 | 430 | part_init(*dev_desc); |
99e7fc8a ET |
431 | #endif |
432 | ||
336b6f90 SW |
433 | cleanup: |
434 | free(dup_str); | |
2023e608 SW |
435 | return dev; |
436 | } | |
437 | ||
10a37fd7 SW |
438 | #define PART_UNSPECIFIED -2 |
439 | #define PART_AUTO -1 | |
440 | #define MAX_SEARCH_PARTITIONS 16 | |
e35929e4 | 441 | int blk_get_device_part_str(const char *ifname, const char *dev_part_str, |
4101f687 | 442 | struct blk_desc **dev_desc, |
10a37fd7 | 443 | disk_partition_t *info, int allow_whole_dev) |
99d2c205 | 444 | { |
10a37fd7 SW |
445 | int ret = -1; |
446 | const char *part_str; | |
447 | char *dup_str = NULL; | |
448 | const char *dev_str; | |
99d2c205 | 449 | int dev; |
10a37fd7 SW |
450 | char *ep; |
451 | int p; | |
452 | int part; | |
453 | disk_partition_t tmpinfo; | |
454 | ||
afc1744e | 455 | #ifdef CONFIG_SANDBOX |
4d907025 | 456 | /* |
3f9eb6e1 | 457 | * Special-case a pseudo block device "hostfs", to allow access to the |
4d907025 SW |
458 | * host's own filesystem. |
459 | */ | |
460 | if (0 == strcmp(ifname, "hostfs")) { | |
461 | *dev_desc = NULL; | |
462 | info->start = 0; | |
463 | info->size = 0; | |
464 | info->blksz = 0; | |
465 | info->bootable = 0; | |
466 | strcpy((char *)info->type, BOOT_PART_TYPE); | |
467 | strcpy((char *)info->name, "Sandbox host"); | |
468 | #ifdef CONFIG_PARTITION_UUIDS | |
469 | info->uuid[0] = 0; | |
470 | #endif | |
7561b258 PD |
471 | #ifdef CONFIG_PARTITION_TYPE_GUID |
472 | info->type_guid[0] = 0; | |
473 | #endif | |
4d907025 SW |
474 | |
475 | return 0; | |
476 | } | |
afc1744e | 477 | #endif |
4d907025 | 478 | |
251cee0d HG |
479 | #ifdef CONFIG_CMD_UBIFS |
480 | /* | |
481 | * Special-case ubi, ubi goes through a mtd, rathen then through | |
482 | * a regular block device. | |
483 | */ | |
484 | if (0 == strcmp(ifname, "ubi")) { | |
485 | if (!ubifs_is_mounted()) { | |
486 | printf("UBIFS not mounted, use ubifsmount to mount volume first!\n"); | |
487 | return -1; | |
488 | } | |
489 | ||
490 | *dev_desc = NULL; | |
491 | memset(info, 0, sizeof(*info)); | |
492 | strcpy((char *)info->type, BOOT_PART_TYPE); | |
493 | strcpy((char *)info->name, "UBI"); | |
494 | #ifdef CONFIG_PARTITION_UUIDS | |
495 | info->uuid[0] = 0; | |
496 | #endif | |
497 | return 0; | |
498 | } | |
499 | #endif | |
500 | ||
10a37fd7 | 501 | /* If no dev_part_str, use bootdevice environment variable */ |
a10973e7 SW |
502 | if (!dev_part_str || !strlen(dev_part_str) || |
503 | !strcmp(dev_part_str, "-")) | |
10a37fd7 SW |
504 | dev_part_str = getenv("bootdevice"); |
505 | ||
506 | /* If still no dev_part_str, it's an error */ | |
507 | if (!dev_part_str) { | |
508 | printf("** No device specified **\n"); | |
509 | goto cleanup; | |
510 | } | |
511 | ||
512 | /* Separate device and partition ID specification */ | |
513 | part_str = strchr(dev_part_str, ':'); | |
514 | if (part_str) { | |
515 | dup_str = strdup(dev_part_str); | |
516 | dup_str[part_str - dev_part_str] = 0; | |
517 | dev_str = dup_str; | |
518 | part_str++; | |
519 | } else { | |
520 | dev_str = dev_part_str; | |
99d2c205 RH |
521 | } |
522 | ||
10a37fd7 | 523 | /* Look up the device */ |
ebac37cf | 524 | dev = blk_get_device_by_str(ifname, dev_str, dev_desc); |
10a37fd7 SW |
525 | if (dev < 0) |
526 | goto cleanup; | |
527 | ||
528 | /* Convert partition ID string to number */ | |
529 | if (!part_str || !*part_str) { | |
530 | part = PART_UNSPECIFIED; | |
531 | } else if (!strcmp(part_str, "auto")) { | |
532 | part = PART_AUTO; | |
533 | } else { | |
534 | /* Something specified -> use exactly that */ | |
535 | part = (int)simple_strtoul(part_str, &ep, 16); | |
536 | /* | |
537 | * Less than whole string converted, | |
538 | * or request for whole device, but caller requires partition. | |
539 | */ | |
540 | if (*ep || (part == 0 && !allow_whole_dev)) { | |
541 | printf("** Bad partition specification %s %s **\n", | |
542 | ifname, dev_part_str); | |
543 | goto cleanup; | |
544 | } | |
545 | } | |
546 | ||
547 | /* | |
548 | * No partition table on device, | |
549 | * or user requested partition 0 (entire device). | |
550 | */ | |
551 | if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) || | |
552 | (part == 0)) { | |
553 | if (!(*dev_desc)->lba) { | |
554 | printf("** Bad device size - %s %s **\n", ifname, | |
555 | dev_str); | |
556 | goto cleanup; | |
557 | } | |
99d2c205 | 558 | |
10a37fd7 SW |
559 | /* |
560 | * If user specified a partition ID other than 0, | |
561 | * or the calling command only accepts partitions, | |
562 | * it's an error. | |
563 | */ | |
564 | if ((part > 0) || (!allow_whole_dev)) { | |
565 | printf("** No partition table - %s %s **\n", ifname, | |
566 | dev_str); | |
567 | goto cleanup; | |
99d2c205 | 568 | } |
10a37fd7 | 569 | |
50ffc3b6 LY |
570 | (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz); |
571 | ||
99d2c205 | 572 | info->start = 0; |
10a37fd7 SW |
573 | info->size = (*dev_desc)->lba; |
574 | info->blksz = (*dev_desc)->blksz; | |
575 | info->bootable = 0; | |
6ab6a650 SW |
576 | strcpy((char *)info->type, BOOT_PART_TYPE); |
577 | strcpy((char *)info->name, "Whole Disk"); | |
10a37fd7 SW |
578 | #ifdef CONFIG_PARTITION_UUIDS |
579 | info->uuid[0] = 0; | |
580 | #endif | |
7561b258 PD |
581 | #ifdef CONFIG_PARTITION_TYPE_GUID |
582 | info->type_guid[0] = 0; | |
583 | #endif | |
99d2c205 | 584 | |
10a37fd7 SW |
585 | ret = 0; |
586 | goto cleanup; | |
99d2c205 RH |
587 | } |
588 | ||
10a37fd7 SW |
589 | /* |
590 | * Now there's known to be a partition table, | |
591 | * not specifying a partition means to pick partition 1. | |
592 | */ | |
593 | if (part == PART_UNSPECIFIED) | |
594 | part = 1; | |
595 | ||
596 | /* | |
597 | * If user didn't specify a partition number, or did specify something | |
598 | * other than "auto", use that partition number directly. | |
599 | */ | |
600 | if (part != PART_AUTO) { | |
3e8bd469 | 601 | ret = part_get_info(*dev_desc, part, info); |
10a37fd7 SW |
602 | if (ret) { |
603 | printf("** Invalid partition %d **\n", part); | |
604 | goto cleanup; | |
605 | } | |
606 | } else { | |
607 | /* | |
608 | * Find the first bootable partition. | |
609 | * If none are bootable, fall back to the first valid partition. | |
610 | */ | |
611 | part = 0; | |
612 | for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { | |
3e8bd469 | 613 | ret = part_get_info(*dev_desc, p, info); |
10a37fd7 SW |
614 | if (ret) |
615 | continue; | |
616 | ||
617 | /* | |
618 | * First valid partition, or new better partition? | |
619 | * If so, save partition ID. | |
620 | */ | |
621 | if (!part || info->bootable) | |
622 | part = p; | |
623 | ||
624 | /* Best possible partition? Stop searching. */ | |
625 | if (info->bootable) | |
626 | break; | |
627 | ||
628 | /* | |
629 | * We now need to search further for best possible. | |
630 | * If we what we just queried was the best so far, | |
631 | * save the info since we over-write it next loop. | |
632 | */ | |
633 | if (part == p) | |
634 | tmpinfo = *info; | |
635 | } | |
636 | /* If we found any acceptable partition */ | |
637 | if (part) { | |
638 | /* | |
639 | * If we searched all possible partition IDs, | |
640 | * return the first valid partition we found. | |
641 | */ | |
642 | if (p == MAX_SEARCH_PARTITIONS + 1) | |
643 | *info = tmpinfo; | |
10a37fd7 SW |
644 | } else { |
645 | printf("** No valid partitions found **\n"); | |
71bba424 | 646 | ret = -1; |
10a37fd7 SW |
647 | goto cleanup; |
648 | } | |
99d2c205 RH |
649 | } |
650 | if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) { | |
651 | printf("** Invalid partition type \"%.32s\"" | |
652 | " (expect \"" BOOT_PART_TYPE "\")\n", | |
653 | info->type); | |
10a37fd7 SW |
654 | ret = -1; |
655 | goto cleanup; | |
99d2c205 RH |
656 | } |
657 | ||
50ffc3b6 LY |
658 | (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz); |
659 | ||
10a37fd7 SW |
660 | ret = part; |
661 | goto cleanup; | |
99d2c205 | 662 | |
10a37fd7 SW |
663 | cleanup: |
664 | free(dup_str); | |
665 | return ret; | |
99d2c205 | 666 | } |