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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) |
735dd97b GL |
26 | { .name = "ide", .get_dev = ide_get_dev, }, |
27 | #endif | |
c7057b52 DL |
28 | #if defined(CONFIG_CMD_SATA) |
29 | {.name = "sata", .get_dev = sata_get_dev, }, | |
30 | #endif | |
c649e3c9 | 31 | #if defined(CONFIG_SCSI) |
735dd97b GL |
32 | { .name = "scsi", .get_dev = scsi_get_dev, }, |
33 | #endif | |
cde5c64d | 34 | #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE) |
735dd97b GL |
35 | { .name = "usb", .get_dev = usb_stor_get_dev, }, |
36 | #endif | |
37 | #if defined(CONFIG_MMC) | |
d2356284 SW |
38 | { |
39 | .name = "mmc", | |
40 | .get_dev = mmc_get_dev, | |
41 | .select_hwpart = mmc_select_hwpart, | |
42 | }, | |
735dd97b GL |
43 | #endif |
44 | #if defined(CONFIG_SYSTEMACE) | |
45 | { .name = "ace", .get_dev = systemace_get_dev, }, | |
f4d8de48 HN |
46 | #endif |
47 | #if defined(CONFIG_SANDBOX) | |
48 | { .name = "host", .get_dev = host_get_dev, }, | |
735dd97b GL |
49 | #endif |
50 | { }, | |
51 | }; | |
52 | ||
751bb571 | 53 | DECLARE_GLOBAL_DATA_PTR; |
751bb571 | 54 | |
0c9c8fb5 | 55 | #ifdef HAVE_BLOCK_DEVICE |
96e5b03c SG |
56 | static struct part_driver *part_driver_lookup_type(int part_type) |
57 | { | |
58 | struct part_driver *drv = | |
59 | ll_entry_start(struct part_driver, part_driver); | |
60 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
61 | struct part_driver *entry; | |
62 | ||
63 | for (entry = drv; entry != drv + n_ents; entry++) { | |
64 | if (part_type == entry->part_type) | |
65 | return entry; | |
66 | } | |
67 | ||
68 | /* Not found */ | |
69 | return NULL; | |
70 | } | |
71 | ||
4101f687 | 72 | static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) |
735dd97b GL |
73 | { |
74 | const struct block_drvr *drvr = block_drvr; | |
4101f687 | 75 | struct blk_desc* (*reloc_get_dev)(int dev); |
336b6f90 | 76 | int (*select_hwpart)(int dev_num, int hwpart); |
23090dac | 77 | char *name; |
336b6f90 | 78 | int ret; |
735dd97b | 79 | |
7e71dc68 TK |
80 | if (!ifname) |
81 | return NULL; | |
82 | ||
23090dac | 83 | name = drvr->name; |
2e5167cc | 84 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
23090dac HS |
85 | name += gd->reloc_off; |
86 | #endif | |
b16aadf4 | 87 | while (drvr->name) { |
23090dac | 88 | name = drvr->name; |
521af04d | 89 | reloc_get_dev = drvr->get_dev; |
336b6f90 | 90 | select_hwpart = drvr->select_hwpart; |
2e5167cc | 91 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
23090dac | 92 | name += gd->reloc_off; |
521af04d | 93 | reloc_get_dev += gd->reloc_off; |
336b6f90 SW |
94 | if (select_hwpart) |
95 | select_hwpart += gd->reloc_off; | |
521af04d | 96 | #endif |
336b6f90 | 97 | if (strncmp(ifname, name, strlen(name)) == 0) { |
4101f687 | 98 | struct blk_desc *dev_desc = reloc_get_dev(dev); |
336b6f90 SW |
99 | if (!dev_desc) |
100 | return NULL; | |
ecdd57e2 | 101 | if (hwpart == 0 && !select_hwpart) |
336b6f90 SW |
102 | return dev_desc; |
103 | if (!select_hwpart) | |
104 | return NULL; | |
bcce53d0 | 105 | ret = select_hwpart(dev_desc->devnum, hwpart); |
336b6f90 SW |
106 | if (ret < 0) |
107 | return NULL; | |
108 | return dev_desc; | |
109 | } | |
735dd97b GL |
110 | drvr++; |
111 | } | |
112 | return NULL; | |
113 | } | |
336b6f90 | 114 | |
db1d9e78 | 115 | struct blk_desc *blk_get_dev(const char *ifname, int dev) |
336b6f90 | 116 | { |
ecdd57e2 | 117 | return get_dev_hwpart(ifname, dev, 0); |
336b6f90 | 118 | } |
735dd97b | 119 | #else |
4101f687 | 120 | struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) |
336b6f90 SW |
121 | { |
122 | return NULL; | |
123 | } | |
124 | ||
db1d9e78 | 125 | struct blk_desc *blk_get_dev(const char *ifname, int dev) |
735dd97b GL |
126 | { |
127 | return NULL; | |
128 | } | |
129 | #endif | |
130 | ||
0c9c8fb5 | 131 | #ifdef HAVE_BLOCK_DEVICE |
affae2bf WD |
132 | |
133 | /* ------------------------------------------------------------------------- */ | |
134 | /* | |
135 | * reports device info to the user | |
136 | */ | |
69a2a4d9 | 137 | |
42dfe7a1 | 138 | #ifdef CONFIG_LBA48 |
69a2a4d9 | 139 | typedef uint64_t lba512_t; |
c40b2956 | 140 | #else |
69a2a4d9 | 141 | typedef lbaint_t lba512_t; |
c40b2956 | 142 | #endif |
affae2bf | 143 | |
69a2a4d9 ST |
144 | /* |
145 | * Overflowless variant of (block_count * mul_by / div_by) | |
146 | * when div_by > mul_by | |
147 | */ | |
214b3f31 | 148 | static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, lba512_t div_by) |
69a2a4d9 ST |
149 | { |
150 | lba512_t bc_quot, bc_rem; | |
151 | ||
152 | /* x * m / d == x / d * m + (x % d) * m / d */ | |
153 | bc_quot = block_count / div_by; | |
154 | bc_rem = block_count - div_by * bc_quot; | |
155 | return bc_quot * mul_by + (bc_rem * mul_by) / div_by; | |
156 | } | |
157 | ||
4101f687 | 158 | void dev_print (struct blk_desc *dev_desc) |
69a2a4d9 ST |
159 | { |
160 | lba512_t lba512; /* number of blocks if 512bytes block size */ | |
161 | ||
af75a45d WD |
162 | if (dev_desc->type == DEV_TYPE_UNKNOWN) { |
163 | puts ("not available\n"); | |
164 | return; | |
165 | } | |
166 | ||
8ec6e332 | 167 | switch (dev_desc->if_type) { |
574b3195 DZ |
168 | case IF_TYPE_SCSI: |
169 | printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n", | |
170 | dev_desc->target,dev_desc->lun, | |
affae2bf | 171 | dev_desc->vendor, |
574b3195 DZ |
172 | dev_desc->product, |
173 | dev_desc->revision); | |
174 | break; | |
6e24a1eb | 175 | case IF_TYPE_ATAPI: |
574b3195 DZ |
176 | case IF_TYPE_IDE: |
177 | case IF_TYPE_SATA: | |
c7057b52 DL |
178 | printf ("Model: %s Firm: %s Ser#: %s\n", |
179 | dev_desc->vendor, | |
180 | dev_desc->revision, | |
181 | dev_desc->product); | |
574b3195 | 182 | break; |
6e24a1eb RB |
183 | case IF_TYPE_SD: |
184 | case IF_TYPE_MMC: | |
47bebe34 NCL |
185 | case IF_TYPE_USB: |
186 | printf ("Vendor: %s Rev: %s Prod: %s\n", | |
187 | dev_desc->vendor, | |
188 | dev_desc->revision, | |
189 | dev_desc->product); | |
190 | break; | |
6e24a1eb RB |
191 | case IF_TYPE_DOC: |
192 | puts("device type DOC\n"); | |
193 | return; | |
8ec6e332 | 194 | case IF_TYPE_UNKNOWN: |
6e24a1eb RB |
195 | puts("device type unknown\n"); |
196 | return; | |
574b3195 | 197 | default: |
6e24a1eb | 198 | printf("Unhandled device type: %i\n", dev_desc->if_type); |
574b3195 | 199 | return; |
affae2bf WD |
200 | } |
201 | puts (" Type: "); | |
202 | if (dev_desc->removable) | |
203 | puts ("Removable "); | |
204 | switch (dev_desc->type & 0x1F) { | |
726c0f1e DZ |
205 | case DEV_TYPE_HARDDISK: |
206 | puts ("Hard Disk"); | |
207 | break; | |
208 | case DEV_TYPE_CDROM: | |
209 | puts ("CD ROM"); | |
210 | break; | |
211 | case DEV_TYPE_OPDISK: | |
212 | puts ("Optical Device"); | |
213 | break; | |
214 | case DEV_TYPE_TAPE: | |
215 | puts ("Tape"); | |
216 | break; | |
217 | default: | |
218 | printf ("# %02X #", dev_desc->type & 0x1F); | |
219 | break; | |
affae2bf WD |
220 | } |
221 | puts ("\n"); | |
33699df1 | 222 | if (dev_desc->lba > 0L && dev_desc->blksz > 0L) { |
affae2bf | 223 | ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem; |
c40b2956 | 224 | lbaint_t lba; |
6e592385 WD |
225 | |
226 | lba = dev_desc->lba; | |
affae2bf | 227 | |
c40b2956 | 228 | lba512 = (lba * (dev_desc->blksz/512)); |
affae2bf | 229 | /* round to 1 digit */ |
214b3f31 PM |
230 | /* 2048 = (1024 * 1024) / 512 MB */ |
231 | mb = lba512_muldiv(lba512, 10, 2048); | |
69a2a4d9 | 232 | |
affae2bf WD |
233 | mb_quot = mb / 10; |
234 | mb_rem = mb - (10 * mb_quot); | |
235 | ||
236 | gb = mb / 1024; | |
237 | gb_quot = gb / 10; | |
238 | gb_rem = gb - (10 * gb_quot); | |
42dfe7a1 | 239 | #ifdef CONFIG_LBA48 |
6e592385 | 240 | if (dev_desc->lba48) |
c40b2956 WD |
241 | printf (" Supports 48-bit addressing\n"); |
242 | #endif | |
4b142feb | 243 | #if defined(CONFIG_SYS_64BIT_LBA) |
6c6166f5 | 244 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n", |
c40b2956 WD |
245 | mb_quot, mb_rem, |
246 | gb_quot, gb_rem, | |
247 | lba, | |
248 | dev_desc->blksz); | |
249 | #else | |
affae2bf WD |
250 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n", |
251 | mb_quot, mb_rem, | |
252 | gb_quot, gb_rem, | |
c40b2956 | 253 | (ulong)lba, |
affae2bf | 254 | dev_desc->blksz); |
c40b2956 | 255 | #endif |
affae2bf WD |
256 | } else { |
257 | puts (" Capacity: not available\n"); | |
258 | } | |
259 | } | |
b3aff0cb | 260 | #endif |
affae2bf | 261 | |
0c9c8fb5 | 262 | #ifdef HAVE_BLOCK_DEVICE |
affae2bf | 263 | |
3e8bd469 | 264 | void part_init(struct blk_desc *dev_desc) |
affae2bf | 265 | { |
96e5b03c SG |
266 | struct part_driver *drv = |
267 | ll_entry_start(struct part_driver, part_driver); | |
268 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
269 | struct part_driver *entry; | |
affae2bf | 270 | |
e40cf34a EN |
271 | blkcache_invalidate(dev_desc->if_type, dev_desc->devnum); |
272 | ||
99d2c205 | 273 | dev_desc->part_type = PART_TYPE_UNKNOWN; |
96e5b03c SG |
274 | for (entry = drv; entry != drv + n_ents; entry++) { |
275 | int ret; | |
276 | ||
277 | ret = entry->test(dev_desc); | |
278 | debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret); | |
279 | if (!ret) { | |
280 | dev_desc->part_type = entry->part_type; | |
281 | break; | |
282 | } | |
283 | } | |
affae2bf WD |
284 | } |
285 | ||
96e5b03c SG |
286 | static void print_part_header(const char *type, struct blk_desc *dev_desc) |
287 | { | |
0c9c8fb5 GB |
288 | #if defined(CONFIG_MAC_PARTITION) || \ |
289 | defined(CONFIG_DOS_PARTITION) || \ | |
290 | defined(CONFIG_ISO_PARTITION) || \ | |
291 | defined(CONFIG_AMIGA_PARTITION) || \ | |
292 | defined(CONFIG_EFI_PARTITION) | |
affae2bf WD |
293 | puts ("\nPartition Map for "); |
294 | switch (dev_desc->if_type) { | |
726c0f1e DZ |
295 | case IF_TYPE_IDE: |
296 | puts ("IDE"); | |
297 | break; | |
298 | case IF_TYPE_SATA: | |
299 | puts ("SATA"); | |
300 | break; | |
301 | case IF_TYPE_SCSI: | |
302 | puts ("SCSI"); | |
303 | break; | |
304 | case IF_TYPE_ATAPI: | |
305 | puts ("ATAPI"); | |
306 | break; | |
307 | case IF_TYPE_USB: | |
308 | puts ("USB"); | |
309 | break; | |
310 | case IF_TYPE_DOC: | |
311 | puts ("DOC"); | |
312 | break; | |
8f3b9642 LW |
313 | case IF_TYPE_MMC: |
314 | puts ("MMC"); | |
315 | break; | |
f4d8de48 HN |
316 | case IF_TYPE_HOST: |
317 | puts("HOST"); | |
318 | break; | |
726c0f1e DZ |
319 | default: |
320 | puts ("UNKNOWN"); | |
321 | break; | |
affae2bf WD |
322 | } |
323 | printf (" device %d -- Partition Type: %s\n\n", | |
bcce53d0 | 324 | dev_desc->devnum, type); |
0c9c8fb5 | 325 | #endif /* any CONFIG_..._PARTITION */ |
96e5b03c | 326 | } |
0c9c8fb5 | 327 | |
3e8bd469 | 328 | void part_print(struct blk_desc *dev_desc) |
affae2bf | 329 | { |
96e5b03c | 330 | struct part_driver *drv; |
affae2bf | 331 | |
96e5b03c SG |
332 | drv = part_driver_lookup_type(dev_desc->part_type); |
333 | if (!drv) { | |
334 | printf("## Unknown partition table type %x\n", | |
335 | dev_desc->part_type); | |
affae2bf | 336 | return; |
affae2bf | 337 | } |
96e5b03c SG |
338 | |
339 | PRINTF("## Testing for valid %s partition ##\n", drv->name); | |
340 | print_part_header(drv->name, dev_desc); | |
341 | if (drv->print) | |
342 | drv->print(dev_desc); | |
affae2bf WD |
343 | } |
344 | ||
0c9c8fb5 | 345 | #endif /* HAVE_BLOCK_DEVICE */ |
2f501646 | 346 | |
3e8bd469 | 347 | int part_get_info(struct blk_desc *dev_desc, int part, |
3f9eb6e1 | 348 | disk_partition_t *info) |
2f501646 | 349 | { |
0c9c8fb5 | 350 | #ifdef HAVE_BLOCK_DEVICE |
96e5b03c | 351 | struct part_driver *drv; |
2f501646 | 352 | |
894bfbbf SW |
353 | #ifdef CONFIG_PARTITION_UUIDS |
354 | /* The common case is no UUID support */ | |
355 | info->uuid[0] = 0; | |
356 | #endif | |
7561b258 PD |
357 | #ifdef CONFIG_PARTITION_TYPE_GUID |
358 | info->type_guid[0] = 0; | |
359 | #endif | |
894bfbbf | 360 | |
96e5b03c SG |
361 | drv = part_driver_lookup_type(dev_desc->part_type); |
362 | if (!drv) { | |
363 | debug("## Unknown partition table type %x\n", | |
364 | dev_desc->part_type); | |
365 | return -EPROTONOSUPPORT; | |
366 | } | |
367 | if (!drv->get_info) { | |
2ae67aec NM |
368 | PRINTF("## Driver %s does not have the get_info() method\n", |
369 | drv->name); | |
96e5b03c SG |
370 | return -ENOSYS; |
371 | } | |
372 | if (drv->get_info(dev_desc, part, info) == 0) { | |
373 | PRINTF("## Valid %s partition found ##\n", drv->name); | |
374 | return 0; | |
2f501646 | 375 | } |
0c9c8fb5 | 376 | #endif /* HAVE_BLOCK_DEVICE */ |
2f501646 SW |
377 | |
378 | return -1; | |
379 | } | |
99d2c205 | 380 | |
ebac37cf SG |
381 | int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str, |
382 | struct blk_desc **dev_desc) | |
2023e608 SW |
383 | { |
384 | char *ep; | |
336b6f90 SW |
385 | char *dup_str = NULL; |
386 | const char *dev_str, *hwpart_str; | |
387 | int dev, hwpart; | |
388 | ||
389 | hwpart_str = strchr(dev_hwpart_str, '.'); | |
390 | if (hwpart_str) { | |
391 | dup_str = strdup(dev_hwpart_str); | |
392 | dup_str[hwpart_str - dev_hwpart_str] = 0; | |
393 | dev_str = dup_str; | |
394 | hwpart_str++; | |
395 | } else { | |
396 | dev_str = dev_hwpart_str; | |
ecdd57e2 | 397 | hwpart = 0; |
336b6f90 | 398 | } |
2023e608 SW |
399 | |
400 | dev = simple_strtoul(dev_str, &ep, 16); | |
401 | if (*ep) { | |
402 | printf("** Bad device specification %s %s **\n", | |
403 | ifname, dev_str); | |
336b6f90 SW |
404 | dev = -1; |
405 | goto cleanup; | |
406 | } | |
407 | ||
408 | if (hwpart_str) { | |
409 | hwpart = simple_strtoul(hwpart_str, &ep, 16); | |
410 | if (*ep) { | |
411 | printf("** Bad HW partition specification %s %s **\n", | |
412 | ifname, hwpart_str); | |
413 | dev = -1; | |
414 | goto cleanup; | |
415 | } | |
2023e608 SW |
416 | } |
417 | ||
336b6f90 | 418 | *dev_desc = get_dev_hwpart(ifname, dev, hwpart); |
2023e608 | 419 | if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) { |
336b6f90 SW |
420 | printf("** Bad device %s %s **\n", ifname, dev_hwpart_str); |
421 | dev = -1; | |
422 | goto cleanup; | |
2023e608 SW |
423 | } |
424 | ||
99e7fc8a ET |
425 | #ifdef HAVE_BLOCK_DEVICE |
426 | /* | |
427 | * Updates the partition table for the specified hw partition. | |
428 | * Does not need to be done for hwpart 0 since it is default and | |
429 | * already loaded. | |
430 | */ | |
431 | if(hwpart != 0) | |
3e8bd469 | 432 | part_init(*dev_desc); |
99e7fc8a ET |
433 | #endif |
434 | ||
336b6f90 SW |
435 | cleanup: |
436 | free(dup_str); | |
2023e608 SW |
437 | return dev; |
438 | } | |
439 | ||
10a37fd7 SW |
440 | #define PART_UNSPECIFIED -2 |
441 | #define PART_AUTO -1 | |
442 | #define MAX_SEARCH_PARTITIONS 16 | |
e35929e4 | 443 | int blk_get_device_part_str(const char *ifname, const char *dev_part_str, |
4101f687 | 444 | struct blk_desc **dev_desc, |
10a37fd7 | 445 | disk_partition_t *info, int allow_whole_dev) |
99d2c205 | 446 | { |
10a37fd7 SW |
447 | int ret = -1; |
448 | const char *part_str; | |
449 | char *dup_str = NULL; | |
450 | const char *dev_str; | |
99d2c205 | 451 | int dev; |
10a37fd7 SW |
452 | char *ep; |
453 | int p; | |
454 | int part; | |
455 | disk_partition_t tmpinfo; | |
456 | ||
afc1744e | 457 | #ifdef CONFIG_SANDBOX |
4d907025 | 458 | /* |
3f9eb6e1 | 459 | * Special-case a pseudo block device "hostfs", to allow access to the |
4d907025 SW |
460 | * host's own filesystem. |
461 | */ | |
462 | if (0 == strcmp(ifname, "hostfs")) { | |
463 | *dev_desc = NULL; | |
464 | info->start = 0; | |
465 | info->size = 0; | |
466 | info->blksz = 0; | |
467 | info->bootable = 0; | |
468 | strcpy((char *)info->type, BOOT_PART_TYPE); | |
469 | strcpy((char *)info->name, "Sandbox host"); | |
470 | #ifdef CONFIG_PARTITION_UUIDS | |
471 | info->uuid[0] = 0; | |
472 | #endif | |
7561b258 PD |
473 | #ifdef CONFIG_PARTITION_TYPE_GUID |
474 | info->type_guid[0] = 0; | |
475 | #endif | |
4d907025 SW |
476 | |
477 | return 0; | |
478 | } | |
afc1744e | 479 | #endif |
4d907025 | 480 | |
251cee0d HG |
481 | #ifdef CONFIG_CMD_UBIFS |
482 | /* | |
483 | * Special-case ubi, ubi goes through a mtd, rathen then through | |
484 | * a regular block device. | |
485 | */ | |
486 | if (0 == strcmp(ifname, "ubi")) { | |
487 | if (!ubifs_is_mounted()) { | |
488 | printf("UBIFS not mounted, use ubifsmount to mount volume first!\n"); | |
489 | return -1; | |
490 | } | |
491 | ||
492 | *dev_desc = NULL; | |
493 | memset(info, 0, sizeof(*info)); | |
494 | strcpy((char *)info->type, BOOT_PART_TYPE); | |
495 | strcpy((char *)info->name, "UBI"); | |
496 | #ifdef CONFIG_PARTITION_UUIDS | |
497 | info->uuid[0] = 0; | |
498 | #endif | |
499 | return 0; | |
500 | } | |
501 | #endif | |
502 | ||
10a37fd7 | 503 | /* If no dev_part_str, use bootdevice environment variable */ |
a10973e7 SW |
504 | if (!dev_part_str || !strlen(dev_part_str) || |
505 | !strcmp(dev_part_str, "-")) | |
10a37fd7 SW |
506 | dev_part_str = getenv("bootdevice"); |
507 | ||
508 | /* If still no dev_part_str, it's an error */ | |
509 | if (!dev_part_str) { | |
510 | printf("** No device specified **\n"); | |
511 | goto cleanup; | |
512 | } | |
513 | ||
514 | /* Separate device and partition ID specification */ | |
515 | part_str = strchr(dev_part_str, ':'); | |
516 | if (part_str) { | |
517 | dup_str = strdup(dev_part_str); | |
518 | dup_str[part_str - dev_part_str] = 0; | |
519 | dev_str = dup_str; | |
520 | part_str++; | |
521 | } else { | |
522 | dev_str = dev_part_str; | |
99d2c205 RH |
523 | } |
524 | ||
10a37fd7 | 525 | /* Look up the device */ |
ebac37cf | 526 | dev = blk_get_device_by_str(ifname, dev_str, dev_desc); |
10a37fd7 SW |
527 | if (dev < 0) |
528 | goto cleanup; | |
529 | ||
530 | /* Convert partition ID string to number */ | |
531 | if (!part_str || !*part_str) { | |
532 | part = PART_UNSPECIFIED; | |
533 | } else if (!strcmp(part_str, "auto")) { | |
534 | part = PART_AUTO; | |
535 | } else { | |
536 | /* Something specified -> use exactly that */ | |
537 | part = (int)simple_strtoul(part_str, &ep, 16); | |
538 | /* | |
539 | * Less than whole string converted, | |
540 | * or request for whole device, but caller requires partition. | |
541 | */ | |
542 | if (*ep || (part == 0 && !allow_whole_dev)) { | |
543 | printf("** Bad partition specification %s %s **\n", | |
544 | ifname, dev_part_str); | |
545 | goto cleanup; | |
546 | } | |
547 | } | |
548 | ||
549 | /* | |
550 | * No partition table on device, | |
551 | * or user requested partition 0 (entire device). | |
552 | */ | |
553 | if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) || | |
554 | (part == 0)) { | |
555 | if (!(*dev_desc)->lba) { | |
556 | printf("** Bad device size - %s %s **\n", ifname, | |
557 | dev_str); | |
558 | goto cleanup; | |
559 | } | |
99d2c205 | 560 | |
10a37fd7 SW |
561 | /* |
562 | * If user specified a partition ID other than 0, | |
563 | * or the calling command only accepts partitions, | |
564 | * it's an error. | |
565 | */ | |
566 | if ((part > 0) || (!allow_whole_dev)) { | |
567 | printf("** No partition table - %s %s **\n", ifname, | |
568 | dev_str); | |
569 | goto cleanup; | |
99d2c205 | 570 | } |
10a37fd7 | 571 | |
50ffc3b6 LY |
572 | (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz); |
573 | ||
99d2c205 | 574 | info->start = 0; |
10a37fd7 SW |
575 | info->size = (*dev_desc)->lba; |
576 | info->blksz = (*dev_desc)->blksz; | |
577 | info->bootable = 0; | |
6ab6a650 SW |
578 | strcpy((char *)info->type, BOOT_PART_TYPE); |
579 | strcpy((char *)info->name, "Whole Disk"); | |
10a37fd7 SW |
580 | #ifdef CONFIG_PARTITION_UUIDS |
581 | info->uuid[0] = 0; | |
582 | #endif | |
7561b258 PD |
583 | #ifdef CONFIG_PARTITION_TYPE_GUID |
584 | info->type_guid[0] = 0; | |
585 | #endif | |
99d2c205 | 586 | |
10a37fd7 SW |
587 | ret = 0; |
588 | goto cleanup; | |
99d2c205 RH |
589 | } |
590 | ||
10a37fd7 SW |
591 | /* |
592 | * Now there's known to be a partition table, | |
593 | * not specifying a partition means to pick partition 1. | |
594 | */ | |
595 | if (part == PART_UNSPECIFIED) | |
596 | part = 1; | |
597 | ||
598 | /* | |
599 | * If user didn't specify a partition number, or did specify something | |
600 | * other than "auto", use that partition number directly. | |
601 | */ | |
602 | if (part != PART_AUTO) { | |
3e8bd469 | 603 | ret = part_get_info(*dev_desc, part, info); |
10a37fd7 SW |
604 | if (ret) { |
605 | printf("** Invalid partition %d **\n", part); | |
606 | goto cleanup; | |
607 | } | |
608 | } else { | |
609 | /* | |
610 | * Find the first bootable partition. | |
611 | * If none are bootable, fall back to the first valid partition. | |
612 | */ | |
613 | part = 0; | |
614 | for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { | |
3e8bd469 | 615 | ret = part_get_info(*dev_desc, p, info); |
10a37fd7 SW |
616 | if (ret) |
617 | continue; | |
618 | ||
619 | /* | |
620 | * First valid partition, or new better partition? | |
621 | * If so, save partition ID. | |
622 | */ | |
623 | if (!part || info->bootable) | |
624 | part = p; | |
625 | ||
626 | /* Best possible partition? Stop searching. */ | |
627 | if (info->bootable) | |
628 | break; | |
629 | ||
630 | /* | |
631 | * We now need to search further for best possible. | |
632 | * If we what we just queried was the best so far, | |
633 | * save the info since we over-write it next loop. | |
634 | */ | |
635 | if (part == p) | |
636 | tmpinfo = *info; | |
637 | } | |
638 | /* If we found any acceptable partition */ | |
639 | if (part) { | |
640 | /* | |
641 | * If we searched all possible partition IDs, | |
642 | * return the first valid partition we found. | |
643 | */ | |
644 | if (p == MAX_SEARCH_PARTITIONS + 1) | |
645 | *info = tmpinfo; | |
10a37fd7 SW |
646 | } else { |
647 | printf("** No valid partitions found **\n"); | |
71bba424 | 648 | ret = -1; |
10a37fd7 SW |
649 | goto cleanup; |
650 | } | |
99d2c205 RH |
651 | } |
652 | if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) { | |
653 | printf("** Invalid partition type \"%.32s\"" | |
654 | " (expect \"" BOOT_PART_TYPE "\")\n", | |
655 | info->type); | |
10a37fd7 SW |
656 | ret = -1; |
657 | goto cleanup; | |
99d2c205 RH |
658 | } |
659 | ||
50ffc3b6 LY |
660 | (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz); |
661 | ||
10a37fd7 SW |
662 | ret = part; |
663 | goto cleanup; | |
99d2c205 | 664 | |
10a37fd7 SW |
665 | cleanup: |
666 | free(dup_str); | |
667 | return ret; | |
99d2c205 | 668 | } |