]>
Commit | Line | Data |
---|---|---|
affae2bf WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | #include <command.h> | |
26 | #include <ide.h> | |
10a37fd7 | 27 | #include <malloc.h> |
735dd97b | 28 | #include <part.h> |
affae2bf WD |
29 | |
30 | #undef PART_DEBUG | |
31 | ||
32 | #ifdef PART_DEBUG | |
33 | #define PRINTF(fmt,args...) printf (fmt ,##args) | |
34 | #else | |
35 | #define PRINTF(fmt,args...) | |
36 | #endif | |
37 | ||
cde5c64d | 38 | #if (defined(CONFIG_CMD_IDE) || \ |
c7057b52 | 39 | defined(CONFIG_CMD_SATA) || \ |
cde5c64d JL |
40 | defined(CONFIG_CMD_SCSI) || \ |
41 | defined(CONFIG_CMD_USB) || \ | |
735dd97b GL |
42 | defined(CONFIG_MMC) || \ |
43 | defined(CONFIG_SYSTEMACE) ) | |
44 | ||
45 | struct block_drvr { | |
46 | char *name; | |
47 | block_dev_desc_t* (*get_dev)(int dev); | |
48 | }; | |
49 | ||
50 | static const struct block_drvr block_drvr[] = { | |
cde5c64d | 51 | #if defined(CONFIG_CMD_IDE) |
735dd97b GL |
52 | { .name = "ide", .get_dev = ide_get_dev, }, |
53 | #endif | |
c7057b52 DL |
54 | #if defined(CONFIG_CMD_SATA) |
55 | {.name = "sata", .get_dev = sata_get_dev, }, | |
56 | #endif | |
cde5c64d | 57 | #if defined(CONFIG_CMD_SCSI) |
735dd97b GL |
58 | { .name = "scsi", .get_dev = scsi_get_dev, }, |
59 | #endif | |
cde5c64d | 60 | #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE) |
735dd97b GL |
61 | { .name = "usb", .get_dev = usb_stor_get_dev, }, |
62 | #endif | |
63 | #if defined(CONFIG_MMC) | |
64 | { .name = "mmc", .get_dev = mmc_get_dev, }, | |
65 | #endif | |
66 | #if defined(CONFIG_SYSTEMACE) | |
67 | { .name = "ace", .get_dev = systemace_get_dev, }, | |
68 | #endif | |
69 | { }, | |
70 | }; | |
71 | ||
751bb571 | 72 | DECLARE_GLOBAL_DATA_PTR; |
751bb571 | 73 | |
99d2c205 | 74 | block_dev_desc_t *get_dev(const char *ifname, int dev) |
735dd97b GL |
75 | { |
76 | const struct block_drvr *drvr = block_drvr; | |
6c7cac8c | 77 | block_dev_desc_t* (*reloc_get_dev)(int dev); |
23090dac | 78 | char *name; |
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; |
2e5167cc | 90 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
23090dac | 91 | name += gd->reloc_off; |
521af04d PT |
92 | reloc_get_dev += gd->reloc_off; |
93 | #endif | |
23090dac | 94 | if (strncmp(ifname, name, strlen(name)) == 0) |
751bb571 | 95 | return reloc_get_dev(dev); |
735dd97b GL |
96 | drvr++; |
97 | } | |
98 | return NULL; | |
99 | } | |
100 | #else | |
99d2c205 | 101 | block_dev_desc_t *get_dev(const char *ifname, int dev) |
735dd97b GL |
102 | { |
103 | return NULL; | |
104 | } | |
105 | #endif | |
106 | ||
cde5c64d | 107 | #if (defined(CONFIG_CMD_IDE) || \ |
c7057b52 | 108 | defined(CONFIG_CMD_SATA) || \ |
cde5c64d JL |
109 | defined(CONFIG_CMD_SCSI) || \ |
110 | defined(CONFIG_CMD_USB) || \ | |
1968e615 WD |
111 | defined(CONFIG_MMC) || \ |
112 | defined(CONFIG_SYSTEMACE) ) | |
affae2bf WD |
113 | |
114 | /* ------------------------------------------------------------------------- */ | |
115 | /* | |
116 | * reports device info to the user | |
117 | */ | |
69a2a4d9 | 118 | |
42dfe7a1 | 119 | #ifdef CONFIG_LBA48 |
69a2a4d9 | 120 | typedef uint64_t lba512_t; |
c40b2956 | 121 | #else |
69a2a4d9 | 122 | typedef lbaint_t lba512_t; |
c40b2956 | 123 | #endif |
affae2bf | 124 | |
69a2a4d9 ST |
125 | /* |
126 | * Overflowless variant of (block_count * mul_by / div_by) | |
127 | * when div_by > mul_by | |
128 | */ | |
129 | static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t div_by) | |
130 | { | |
131 | lba512_t bc_quot, bc_rem; | |
132 | ||
133 | /* x * m / d == x / d * m + (x % d) * m / d */ | |
134 | bc_quot = block_count / div_by; | |
135 | bc_rem = block_count - div_by * bc_quot; | |
136 | return bc_quot * mul_by + (bc_rem * mul_by) / div_by; | |
137 | } | |
138 | ||
139 | void dev_print (block_dev_desc_t *dev_desc) | |
140 | { | |
141 | lba512_t lba512; /* number of blocks if 512bytes block size */ | |
142 | ||
af75a45d WD |
143 | if (dev_desc->type == DEV_TYPE_UNKNOWN) { |
144 | puts ("not available\n"); | |
145 | return; | |
146 | } | |
147 | ||
8ec6e332 | 148 | switch (dev_desc->if_type) { |
574b3195 DZ |
149 | case IF_TYPE_SCSI: |
150 | printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n", | |
151 | dev_desc->target,dev_desc->lun, | |
affae2bf | 152 | dev_desc->vendor, |
574b3195 DZ |
153 | dev_desc->product, |
154 | dev_desc->revision); | |
155 | break; | |
6e24a1eb | 156 | case IF_TYPE_ATAPI: |
574b3195 DZ |
157 | case IF_TYPE_IDE: |
158 | case IF_TYPE_SATA: | |
c7057b52 DL |
159 | printf ("Model: %s Firm: %s Ser#: %s\n", |
160 | dev_desc->vendor, | |
161 | dev_desc->revision, | |
162 | dev_desc->product); | |
574b3195 | 163 | break; |
6e24a1eb RB |
164 | case IF_TYPE_SD: |
165 | case IF_TYPE_MMC: | |
47bebe34 NCL |
166 | case IF_TYPE_USB: |
167 | printf ("Vendor: %s Rev: %s Prod: %s\n", | |
168 | dev_desc->vendor, | |
169 | dev_desc->revision, | |
170 | dev_desc->product); | |
171 | break; | |
6e24a1eb RB |
172 | case IF_TYPE_DOC: |
173 | puts("device type DOC\n"); | |
174 | return; | |
8ec6e332 | 175 | case IF_TYPE_UNKNOWN: |
6e24a1eb RB |
176 | puts("device type unknown\n"); |
177 | return; | |
574b3195 | 178 | default: |
6e24a1eb | 179 | printf("Unhandled device type: %i\n", dev_desc->if_type); |
574b3195 | 180 | return; |
affae2bf WD |
181 | } |
182 | puts (" Type: "); | |
183 | if (dev_desc->removable) | |
184 | puts ("Removable "); | |
185 | switch (dev_desc->type & 0x1F) { | |
726c0f1e DZ |
186 | case DEV_TYPE_HARDDISK: |
187 | puts ("Hard Disk"); | |
188 | break; | |
189 | case DEV_TYPE_CDROM: | |
190 | puts ("CD ROM"); | |
191 | break; | |
192 | case DEV_TYPE_OPDISK: | |
193 | puts ("Optical Device"); | |
194 | break; | |
195 | case DEV_TYPE_TAPE: | |
196 | puts ("Tape"); | |
197 | break; | |
198 | default: | |
199 | printf ("# %02X #", dev_desc->type & 0x1F); | |
200 | break; | |
affae2bf WD |
201 | } |
202 | puts ("\n"); | |
203 | if ((dev_desc->lba * dev_desc->blksz)>0L) { | |
204 | ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem; | |
c40b2956 | 205 | lbaint_t lba; |
6e592385 WD |
206 | |
207 | lba = dev_desc->lba; | |
affae2bf | 208 | |
c40b2956 | 209 | lba512 = (lba * (dev_desc->blksz/512)); |
affae2bf | 210 | /* round to 1 digit */ |
69a2a4d9 ST |
211 | mb = lba512_muldiv(lba512, 10, 2048); /* 2048 = (1024 * 1024) / 512 MB */ |
212 | ||
affae2bf WD |
213 | mb_quot = mb / 10; |
214 | mb_rem = mb - (10 * mb_quot); | |
215 | ||
216 | gb = mb / 1024; | |
217 | gb_quot = gb / 10; | |
218 | gb_rem = gb - (10 * gb_quot); | |
42dfe7a1 | 219 | #ifdef CONFIG_LBA48 |
6e592385 | 220 | if (dev_desc->lba48) |
c40b2956 WD |
221 | printf (" Supports 48-bit addressing\n"); |
222 | #endif | |
4b142feb | 223 | #if defined(CONFIG_SYS_64BIT_LBA) |
6c6166f5 | 224 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n", |
c40b2956 WD |
225 | mb_quot, mb_rem, |
226 | gb_quot, gb_rem, | |
227 | lba, | |
228 | dev_desc->blksz); | |
229 | #else | |
affae2bf WD |
230 | printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n", |
231 | mb_quot, mb_rem, | |
232 | gb_quot, gb_rem, | |
c40b2956 | 233 | (ulong)lba, |
affae2bf | 234 | dev_desc->blksz); |
c40b2956 | 235 | #endif |
affae2bf WD |
236 | } else { |
237 | puts (" Capacity: not available\n"); | |
238 | } | |
239 | } | |
b3aff0cb | 240 | #endif |
affae2bf | 241 | |
cde5c64d | 242 | #if (defined(CONFIG_CMD_IDE) || \ |
c7057b52 | 243 | defined(CONFIG_CMD_SATA) || \ |
cde5c64d JL |
244 | defined(CONFIG_CMD_SCSI) || \ |
245 | defined(CONFIG_CMD_USB) || \ | |
7fac3f69 | 246 | defined(CONFIG_MMC) || \ |
75eb82ec | 247 | defined(CONFIG_SYSTEMACE) ) |
affae2bf | 248 | |
affae2bf WD |
249 | #if defined(CONFIG_MAC_PARTITION) || \ |
250 | defined(CONFIG_DOS_PARTITION) || \ | |
c7de829c | 251 | defined(CONFIG_ISO_PARTITION) || \ |
07f3d789 | 252 | defined(CONFIG_AMIGA_PARTITION) || \ |
253 | defined(CONFIG_EFI_PARTITION) | |
affae2bf WD |
254 | |
255 | void init_part (block_dev_desc_t * dev_desc) | |
256 | { | |
257 | #ifdef CONFIG_ISO_PARTITION | |
258 | if (test_part_iso(dev_desc) == 0) { | |
259 | dev_desc->part_type = PART_TYPE_ISO; | |
260 | return; | |
261 | } | |
262 | #endif | |
263 | ||
264 | #ifdef CONFIG_MAC_PARTITION | |
265 | if (test_part_mac(dev_desc) == 0) { | |
266 | dev_desc->part_type = PART_TYPE_MAC; | |
267 | return; | |
268 | } | |
269 | #endif | |
270 | ||
07f3d789 | 271 | /* must be placed before DOS partition detection */ |
272 | #ifdef CONFIG_EFI_PARTITION | |
273 | if (test_part_efi(dev_desc) == 0) { | |
274 | dev_desc->part_type = PART_TYPE_EFI; | |
275 | return; | |
276 | } | |
277 | #endif | |
278 | ||
affae2bf WD |
279 | #ifdef CONFIG_DOS_PARTITION |
280 | if (test_part_dos(dev_desc) == 0) { | |
281 | dev_desc->part_type = PART_TYPE_DOS; | |
282 | return; | |
283 | } | |
284 | #endif | |
c7de829c WD |
285 | |
286 | #ifdef CONFIG_AMIGA_PARTITION | |
287 | if (test_part_amiga(dev_desc) == 0) { | |
288 | dev_desc->part_type = PART_TYPE_AMIGA; | |
289 | return; | |
290 | } | |
291 | #endif | |
99d2c205 | 292 | dev_desc->part_type = PART_TYPE_UNKNOWN; |
affae2bf WD |
293 | } |
294 | ||
295 | ||
affae2bf WD |
296 | static void print_part_header (const char *type, block_dev_desc_t * dev_desc) |
297 | { | |
298 | puts ("\nPartition Map for "); | |
299 | switch (dev_desc->if_type) { | |
726c0f1e DZ |
300 | case IF_TYPE_IDE: |
301 | puts ("IDE"); | |
302 | break; | |
303 | case IF_TYPE_SATA: | |
304 | puts ("SATA"); | |
305 | break; | |
306 | case IF_TYPE_SCSI: | |
307 | puts ("SCSI"); | |
308 | break; | |
309 | case IF_TYPE_ATAPI: | |
310 | puts ("ATAPI"); | |
311 | break; | |
312 | case IF_TYPE_USB: | |
313 | puts ("USB"); | |
314 | break; | |
315 | case IF_TYPE_DOC: | |
316 | puts ("DOC"); | |
317 | break; | |
8f3b9642 LW |
318 | case IF_TYPE_MMC: |
319 | puts ("MMC"); | |
320 | break; | |
726c0f1e DZ |
321 | default: |
322 | puts ("UNKNOWN"); | |
323 | break; | |
affae2bf WD |
324 | } |
325 | printf (" device %d -- Partition Type: %s\n\n", | |
326 | dev_desc->dev, type); | |
327 | } | |
328 | ||
329 | void print_part (block_dev_desc_t * dev_desc) | |
330 | { | |
331 | ||
332 | switch (dev_desc->part_type) { | |
333 | #ifdef CONFIG_MAC_PARTITION | |
334 | case PART_TYPE_MAC: | |
335 | PRINTF ("## Testing for valid MAC partition ##\n"); | |
336 | print_part_header ("MAC", dev_desc); | |
337 | print_part_mac (dev_desc); | |
338 | return; | |
339 | #endif | |
340 | #ifdef CONFIG_DOS_PARTITION | |
341 | case PART_TYPE_DOS: | |
342 | PRINTF ("## Testing for valid DOS partition ##\n"); | |
343 | print_part_header ("DOS", dev_desc); | |
344 | print_part_dos (dev_desc); | |
345 | return; | |
346 | #endif | |
347 | ||
348 | #ifdef CONFIG_ISO_PARTITION | |
349 | case PART_TYPE_ISO: | |
350 | PRINTF ("## Testing for valid ISO Boot partition ##\n"); | |
351 | print_part_header ("ISO", dev_desc); | |
352 | print_part_iso (dev_desc); | |
353 | return; | |
354 | #endif | |
c7de829c WD |
355 | |
356 | #ifdef CONFIG_AMIGA_PARTITION | |
357 | case PART_TYPE_AMIGA: | |
358 | PRINTF ("## Testing for a valid Amiga partition ##\n"); | |
359 | print_part_header ("AMIGA", dev_desc); | |
360 | print_part_amiga (dev_desc); | |
361 | return; | |
362 | #endif | |
07f3d789 | 363 | |
364 | #ifdef CONFIG_EFI_PARTITION | |
365 | case PART_TYPE_EFI: | |
366 | PRINTF ("## Testing for valid EFI partition ##\n"); | |
367 | print_part_header ("EFI", dev_desc); | |
368 | print_part_efi (dev_desc); | |
369 | return; | |
370 | #endif | |
affae2bf WD |
371 | } |
372 | puts ("## Unknown partition table\n"); | |
373 | } | |
374 | ||
375 | ||
07f3d789 | 376 | #else /* neither MAC nor DOS nor ISO nor AMIGA nor EFI partition configured */ |
725671cc | 377 | # error neither CONFIG_MAC_PARTITION nor CONFIG_DOS_PARTITION |
07f3d789 | 378 | # error nor CONFIG_ISO_PARTITION nor CONFIG_AMIGA_PARTITION |
379 | # error nor CONFIG_EFI_PARTITION configured! | |
affae2bf WD |
380 | #endif |
381 | ||
cde5c64d | 382 | #endif |
2f501646 SW |
383 | |
384 | int get_partition_info(block_dev_desc_t *dev_desc, int part | |
385 | , disk_partition_t *info) | |
386 | { | |
387 | #if defined(CONFIG_CMD_IDE) || \ | |
388 | defined(CONFIG_CMD_SATA) || \ | |
389 | defined(CONFIG_CMD_SCSI) || \ | |
390 | defined(CONFIG_CMD_USB) || \ | |
391 | defined(CONFIG_MMC) || \ | |
392 | defined(CONFIG_SYSTEMACE) | |
393 | ||
894bfbbf SW |
394 | #ifdef CONFIG_PARTITION_UUIDS |
395 | /* The common case is no UUID support */ | |
396 | info->uuid[0] = 0; | |
397 | #endif | |
398 | ||
2f501646 SW |
399 | switch (dev_desc->part_type) { |
400 | #ifdef CONFIG_MAC_PARTITION | |
401 | case PART_TYPE_MAC: | |
402 | if (get_partition_info_mac(dev_desc, part, info) == 0) { | |
403 | PRINTF("## Valid MAC partition found ##\n"); | |
404 | return 0; | |
405 | } | |
406 | break; | |
407 | #endif | |
408 | ||
409 | #ifdef CONFIG_DOS_PARTITION | |
410 | case PART_TYPE_DOS: | |
411 | if (get_partition_info_dos(dev_desc, part, info) == 0) { | |
412 | PRINTF("## Valid DOS partition found ##\n"); | |
413 | return 0; | |
414 | } | |
415 | break; | |
416 | #endif | |
417 | ||
418 | #ifdef CONFIG_ISO_PARTITION | |
419 | case PART_TYPE_ISO: | |
420 | if (get_partition_info_iso(dev_desc, part, info) == 0) { | |
421 | PRINTF("## Valid ISO boot partition found ##\n"); | |
422 | return 0; | |
423 | } | |
424 | break; | |
425 | #endif | |
426 | ||
427 | #ifdef CONFIG_AMIGA_PARTITION | |
428 | case PART_TYPE_AMIGA: | |
429 | if (get_partition_info_amiga(dev_desc, part, info) == 0) { | |
430 | PRINTF("## Valid Amiga partition found ##\n"); | |
431 | return 0; | |
432 | } | |
433 | break; | |
434 | #endif | |
435 | ||
436 | #ifdef CONFIG_EFI_PARTITION | |
437 | case PART_TYPE_EFI: | |
438 | if (get_partition_info_efi(dev_desc, part, info) == 0) { | |
439 | PRINTF("## Valid EFI partition found ##\n"); | |
440 | return 0; | |
441 | } | |
442 | break; | |
443 | #endif | |
444 | default: | |
445 | break; | |
446 | } | |
447 | #endif | |
448 | ||
449 | return -1; | |
450 | } | |
99d2c205 | 451 | |
2023e608 SW |
452 | int get_device(const char *ifname, const char *dev_str, |
453 | block_dev_desc_t **dev_desc) | |
454 | { | |
455 | char *ep; | |
456 | int dev; | |
457 | ||
458 | dev = simple_strtoul(dev_str, &ep, 16); | |
459 | if (*ep) { | |
460 | printf("** Bad device specification %s %s **\n", | |
461 | ifname, dev_str); | |
462 | return -1; | |
463 | } | |
464 | ||
465 | *dev_desc = get_dev(ifname, dev); | |
466 | if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) { | |
467 | printf("** Bad device %s %s **\n", ifname, dev_str); | |
468 | return -1; | |
469 | } | |
470 | ||
471 | return dev; | |
472 | } | |
473 | ||
10a37fd7 SW |
474 | #define PART_UNSPECIFIED -2 |
475 | #define PART_AUTO -1 | |
476 | #define MAX_SEARCH_PARTITIONS 16 | |
477 | int get_device_and_partition(const char *ifname, const char *dev_part_str, | |
99d2c205 | 478 | block_dev_desc_t **dev_desc, |
10a37fd7 | 479 | disk_partition_t *info, int allow_whole_dev) |
99d2c205 | 480 | { |
10a37fd7 SW |
481 | int ret = -1; |
482 | const char *part_str; | |
483 | char *dup_str = NULL; | |
484 | const char *dev_str; | |
99d2c205 | 485 | int dev; |
10a37fd7 SW |
486 | char *ep; |
487 | int p; | |
488 | int part; | |
489 | disk_partition_t tmpinfo; | |
490 | ||
491 | /* If no dev_part_str, use bootdevice environment variable */ | |
a10973e7 SW |
492 | if (!dev_part_str || !strlen(dev_part_str) || |
493 | !strcmp(dev_part_str, "-")) | |
10a37fd7 SW |
494 | dev_part_str = getenv("bootdevice"); |
495 | ||
496 | /* If still no dev_part_str, it's an error */ | |
497 | if (!dev_part_str) { | |
498 | printf("** No device specified **\n"); | |
499 | goto cleanup; | |
500 | } | |
501 | ||
502 | /* Separate device and partition ID specification */ | |
503 | part_str = strchr(dev_part_str, ':'); | |
504 | if (part_str) { | |
505 | dup_str = strdup(dev_part_str); | |
506 | dup_str[part_str - dev_part_str] = 0; | |
507 | dev_str = dup_str; | |
508 | part_str++; | |
509 | } else { | |
510 | dev_str = dev_part_str; | |
99d2c205 RH |
511 | } |
512 | ||
10a37fd7 SW |
513 | /* Look up the device */ |
514 | dev = get_device(ifname, dev_str, dev_desc); | |
515 | if (dev < 0) | |
516 | goto cleanup; | |
517 | ||
518 | /* Convert partition ID string to number */ | |
519 | if (!part_str || !*part_str) { | |
520 | part = PART_UNSPECIFIED; | |
521 | } else if (!strcmp(part_str, "auto")) { | |
522 | part = PART_AUTO; | |
523 | } else { | |
524 | /* Something specified -> use exactly that */ | |
525 | part = (int)simple_strtoul(part_str, &ep, 16); | |
526 | /* | |
527 | * Less than whole string converted, | |
528 | * or request for whole device, but caller requires partition. | |
529 | */ | |
530 | if (*ep || (part == 0 && !allow_whole_dev)) { | |
531 | printf("** Bad partition specification %s %s **\n", | |
532 | ifname, dev_part_str); | |
533 | goto cleanup; | |
534 | } | |
535 | } | |
536 | ||
537 | /* | |
538 | * No partition table on device, | |
539 | * or user requested partition 0 (entire device). | |
540 | */ | |
541 | if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) || | |
542 | (part == 0)) { | |
543 | if (!(*dev_desc)->lba) { | |
544 | printf("** Bad device size - %s %s **\n", ifname, | |
545 | dev_str); | |
546 | goto cleanup; | |
547 | } | |
99d2c205 | 548 | |
10a37fd7 SW |
549 | /* |
550 | * If user specified a partition ID other than 0, | |
551 | * or the calling command only accepts partitions, | |
552 | * it's an error. | |
553 | */ | |
554 | if ((part > 0) || (!allow_whole_dev)) { | |
555 | printf("** No partition table - %s %s **\n", ifname, | |
556 | dev_str); | |
557 | goto cleanup; | |
99d2c205 | 558 | } |
10a37fd7 | 559 | |
99d2c205 | 560 | info->start = 0; |
10a37fd7 SW |
561 | info->size = (*dev_desc)->lba; |
562 | info->blksz = (*dev_desc)->blksz; | |
563 | info->bootable = 0; | |
564 | #ifdef CONFIG_PARTITION_UUIDS | |
565 | info->uuid[0] = 0; | |
566 | #endif | |
99d2c205 | 567 | |
10a37fd7 SW |
568 | ret = 0; |
569 | goto cleanup; | |
99d2c205 RH |
570 | } |
571 | ||
10a37fd7 SW |
572 | /* |
573 | * Now there's known to be a partition table, | |
574 | * not specifying a partition means to pick partition 1. | |
575 | */ | |
576 | if (part == PART_UNSPECIFIED) | |
577 | part = 1; | |
578 | ||
579 | /* | |
580 | * If user didn't specify a partition number, or did specify something | |
581 | * other than "auto", use that partition number directly. | |
582 | */ | |
583 | if (part != PART_AUTO) { | |
584 | ret = get_partition_info(*dev_desc, part, info); | |
585 | if (ret) { | |
586 | printf("** Invalid partition %d **\n", part); | |
587 | goto cleanup; | |
588 | } | |
589 | } else { | |
590 | /* | |
591 | * Find the first bootable partition. | |
592 | * If none are bootable, fall back to the first valid partition. | |
593 | */ | |
594 | part = 0; | |
595 | for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { | |
596 | ret = get_partition_info(*dev_desc, p, info); | |
597 | if (ret) | |
598 | continue; | |
599 | ||
600 | /* | |
601 | * First valid partition, or new better partition? | |
602 | * If so, save partition ID. | |
603 | */ | |
604 | if (!part || info->bootable) | |
605 | part = p; | |
606 | ||
607 | /* Best possible partition? Stop searching. */ | |
608 | if (info->bootable) | |
609 | break; | |
610 | ||
611 | /* | |
612 | * We now need to search further for best possible. | |
613 | * If we what we just queried was the best so far, | |
614 | * save the info since we over-write it next loop. | |
615 | */ | |
616 | if (part == p) | |
617 | tmpinfo = *info; | |
618 | } | |
619 | /* If we found any acceptable partition */ | |
620 | if (part) { | |
621 | /* | |
622 | * If we searched all possible partition IDs, | |
623 | * return the first valid partition we found. | |
624 | */ | |
625 | if (p == MAX_SEARCH_PARTITIONS + 1) | |
626 | *info = tmpinfo; | |
627 | ret = 0; | |
628 | } else { | |
629 | printf("** No valid partitions found **\n"); | |
630 | goto cleanup; | |
631 | } | |
99d2c205 RH |
632 | } |
633 | if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) { | |
634 | printf("** Invalid partition type \"%.32s\"" | |
635 | " (expect \"" BOOT_PART_TYPE "\")\n", | |
636 | info->type); | |
10a37fd7 SW |
637 | ret = -1; |
638 | goto cleanup; | |
99d2c205 RH |
639 | } |
640 | ||
10a37fd7 SW |
641 | ret = part; |
642 | goto cleanup; | |
99d2c205 | 643 | |
10a37fd7 SW |
644 | cleanup: |
645 | free(dup_str); | |
646 | return ret; | |
99d2c205 | 647 | } |