2 libparted - a library for manipulating disk partitions
3 Copyright (C) 2000, 2002, 2004, 2007-2009 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include <parted/parted.h>
22 #include <parted/debug.h>
23 #include <parted/endian.h>
28 # define _(String) dgettext (PACKAGE, String)
30 # define _(String) (String)
31 #endif /* ENABLE_NLS */
36 /* struct's hacked from Linux source: fs/partitions/mac.h
37 * I believe it was originally written by Paul Mackerras (from comments in
41 * http://developer.apple.com/documentation/mac/Devices/Devices-126.html
42 * http://developer.apple.com/documentation/mac/Devices/Devices-121.html
43 * http://devworld.apple.com/technotes/tn/tn1189.html
46 * Apple_Bootstrap new-world (HFS) boot partition
47 * Apple_partition_map partition map (table)
48 * Apple_Driver device driver
49 * Apple_Driver43 SCSI Manager 4.3 device driver
50 * Apple_MFS original Macintosh File System
51 * Apple_HFS Hierarchical File System (and +)
52 * Apple_HFSX HFS+ with case sensitivity and more
53 * Apple_UNIX_SVR2 UNIX file system (UFS?)
54 * Apple_PRODOS ProDOS file system
55 * Apple_Free unused space
57 * Apple_Void padding for iso9660
58 * Apple_Extra an unused partition map entry
68 * partition volume or partition
71 * * All space must be accounted for, except block 0 (driver block) and
72 * block 1-X (the partition map: i.e. lots of MacRawPartitions)
74 * * It's really hard to grow/shrink the number of MacRawPartition
75 * entries in the partition map, because the first partition starts
76 * immediately after the partition map. When we can move the start of
77 * HFS and ext2 partitions, this problem will disappear ;-)
80 #define MAC_PARTITION_MAGIC_1 0x5453 /* old */
81 #define MAC_PARTITION_MAGIC_2 0x504d
82 #define MAC_DISK_MAGIC 0x4552
84 #define MAC_STATUS_BOOTABLE 8 /* partition is bootable */
86 typedef struct _MacRawPartition MacRawPartition;
87 typedef struct _MacRawDisk MacRawDisk;
88 typedef struct _MacDeviceDriver MacDeviceDriver;
89 typedef struct _MacPartitionData MacPartitionData;
90 typedef struct _MacDiskData MacDiskData;
92 struct __attribute__ ((packed)) _MacRawPartition {
93 uint16_t signature; /* expected to be MAC_PARTITION_MAGIC */
95 uint32_t map_count; /* # blocks in partition map */
96 uint32_t start_block; /* absolute starting block # of partition */
97 uint32_t block_count; /* number of blocks in partition */
98 char name[32]; /* partition name */
99 char type[32]; /* string type description */
100 uint32_t data_start; /* rel block # of first data block */
101 uint32_t data_count; /* number of data blocks */
102 uint32_t status; /* partition status bits */
108 uint32_t boot_entry2;
110 char processor[16]; /* Contains 680x0, x=0,2,3,4; or empty */
115 /* Driver descriptor structure, in block 0 */
116 struct __attribute__ ((packed)) _MacRawDisk {
117 uint16_t signature; /* expected to be MAC_DRIVER_MAGIC */
118 uint16_t block_size; /* physical sector size */
119 uint32_t block_count; /* size of device in blocks */
120 uint16_t dev_type; /* reserved */
121 uint16_t dev_id; /* reserved */
122 uint32_t data; /* reserved */
123 uint16_t driver_count; /* # of driver descriptor entries */
124 uint8_t driverlist[488];/* info about available drivers */
125 uint16_t padding[3]; /* pad to 512 bytes */
128 struct __attribute__ ((packed)) _MacDeviceDriver {
129 uint32_t block; /* startblock in MacRawDisk->block_size units */
130 uint16_t size; /* size in 512 byte units */
131 uint16_t type; /* operating system type (MacOS = 1) */
134 struct _MacPartitionData {
135 char volume_name[33]; /* eg: "Games" */
136 char system_name[33]; /* eg: "Apple_Unix_SVR2" */
137 char processor_name[17];
147 PedSector data_region_length;
148 PedSector boot_region_length;
150 uint32_t boot_base_address;
151 uint32_t boot_entry_address;
152 uint32_t boot_checksum;
158 struct _MacDiskData {
159 int ghost_size; /* sectors per "driver" block */
160 int part_map_entry_count; /* # entries (incl. ghost) */
161 int part_map_entry_num; /* partition map location */
163 int active_part_entry_count; /* # real partitions */
164 int free_part_entry_count; /* # free space */
165 int last_part_entry_num; /* last entry number */
167 uint16_t block_size; /* physical sector size */
168 uint16_t driver_count;
169 MacDeviceDriver driverlist[1 + 60]; /* 488 bytes */
172 static PedDiskType mac_disk_type;
175 _check_signature (MacRawDisk const *raw_disk)
177 if (PED_BE16_TO_CPU (raw_disk->signature) != MAC_DISK_MAGIC) {
181 return ped_exception_throw (
183 PED_EXCEPTION_IGNORE_CANCEL,
184 _("Invalid signature %x for Mac disk labels."),
185 (int) PED_BE16_TO_CPU (raw_disk->signature))
186 == PED_EXCEPTION_IGNORE;
194 _rawpart_check_signature (MacRawPartition* raw_part)
196 int sig = (int) PED_BE16_TO_CPU (raw_part->signature);
197 return sig == MAC_PARTITION_MAGIC_1 || sig == MAC_PARTITION_MAGIC_2;
201 mac_probe (const PedDevice * dev)
203 PED_ASSERT (dev != NULL, return 0);
205 if (dev->sector_size < sizeof (MacRawDisk))
209 if (!ptt_read_sector (dev, 0, &label))
212 int valid = _check_signature (label);
219 _disk_add_part_map_entry (PedDisk* disk, int warn)
221 MacDiskData* mac_disk_data = disk->disk_specific;
222 PedPartition* new_part;
223 MacPartitionData* mac_part_data;
224 PedSector part_map_size;
225 PedConstraint* constraint_any = ped_constraint_any (disk->dev);
227 #ifndef DISCOVER_ONLY
228 if (warn && ped_exception_throw (
230 PED_EXCEPTION_FIX | PED_EXCEPTION_CANCEL,
231 _("Partition map has no partition map entry!"))
232 != PED_EXCEPTION_FIX)
234 #endif /* !DISCOVER_ONLY */
237 = ped_round_up_to (mac_disk_data->last_part_entry_num, 64);
238 if (part_map_size == 0)
241 new_part = ped_partition_new (disk, PED_PARTITION_NORMAL, NULL,
242 1, part_map_size - 1);
246 mac_part_data = new_part->disk_specific;
247 strcpy (mac_part_data->volume_name, "Apple");
248 strcpy (mac_part_data->system_name, "Apple_partition_map");
250 if (!ped_disk_add_partition (disk, new_part, constraint_any))
251 goto error_destroy_new_part;
253 mac_disk_data->part_map_entry_num = new_part->num;
254 mac_disk_data->part_map_entry_count
255 = new_part->geom.end - mac_disk_data->ghost_size;
256 ped_constraint_destroy (constraint_any);
259 error_destroy_new_part:
260 ped_partition_destroy (new_part);
262 ped_constraint_destroy (constraint_any);
267 mac_alloc (const PedDevice* dev)
270 MacDiskData* mac_disk_data;
272 PED_ASSERT (dev != NULL, return NULL);
274 #ifndef DISCOVER_ONLY
275 if (dev->length < 256) {
276 ped_exception_throw (
278 PED_EXCEPTION_CANCEL,
279 _("%s is too small for a Mac disk label!"),
285 disk = _ped_disk_alloc (dev, &mac_disk_type);
289 mac_disk_data = (MacDiskData*) ped_malloc (sizeof (MacDiskData));
291 goto error_free_disk;
292 disk->disk_specific = mac_disk_data;
293 mac_disk_data->ghost_size = disk->dev->sector_size / 512;
294 mac_disk_data->active_part_entry_count = 0;
295 mac_disk_data->free_part_entry_count = 1;
296 mac_disk_data->last_part_entry_num = 1;
297 mac_disk_data->block_size = 0;
298 mac_disk_data->driver_count = 0;
299 memset(&mac_disk_data->driverlist[0], 0, sizeof(mac_disk_data->driverlist));
301 if (!_disk_add_part_map_entry (disk, 0))
302 goto error_free_disk;
306 _ped_disk_free (disk);
312 mac_duplicate (const PedDisk* disk)
315 MacDiskData* new_mac_data;
316 MacDiskData* old_mac_data = (MacDiskData*) disk->disk_specific;
318 new_disk = ped_disk_new_fresh (disk->dev, &mac_disk_type);
322 new_mac_data = (MacDiskData*) new_disk->disk_specific;
324 /* remove the partition map partition - it will be duplicated
327 PedSector first_part_map_sector = old_mac_data->ghost_size;
328 PedPartition *partition_map
329 = ped_disk_get_partition_by_sector (new_disk, first_part_map_sector);
330 PED_ASSERT (partition_map != NULL, return 0);
332 /* ped_disk_remove_partition may be used only to delete a "normal"
333 partition. Trying to delete at least "freespace" or "metadata"
334 partitions leads to a violation of assumptions in
335 ped_disk_remove_partition, since it calls _disk_push_update_mode,
336 which destroys all "freespace" and "metadata" partitions, and
337 depends on that destruction not freeing its PART parameter. */
338 PED_ASSERT (partition_map->type == PED_PARTITION_NORMAL, return 0);
339 ped_disk_remove_partition (new_disk, partition_map);
341 /* ugly, but C is ugly :p */
342 memcpy (new_mac_data, old_mac_data, sizeof (MacDiskData));
347 mac_free (PedDisk* disk)
349 MacDiskData* mac_disk_data = disk->disk_specific;
351 _ped_disk_free (disk);
352 free (mac_disk_data);
355 #ifndef DISCOVER_ONLY
357 _clobber_part_map (PedDevice* dev)
359 void *buf = ped_malloc (dev->sector_size);
365 for (sector=1; 1; sector++) {
366 if (!ped_device_read (dev, buf, sector, 1)) {
370 if (!_rawpart_check_signature (buf)) {
374 memset (buf, 0, dev->sector_size);
375 if (!ped_device_write (dev, buf, sector, 1)) {
385 mac_clobber (PedDevice* dev)
388 if (!ptt_read_sector (dev, 0, &buf))
391 if (!_check_signature (buf)) {
396 memset (buf, 0, dev->sector_size);
397 int ok = ped_device_write (dev, buf, 0, 1);
402 return _clobber_part_map (dev);
404 #endif /* !DISCOVER_ONLY */
407 _rawpart_cmp_type (const MacRawPartition* raw_part, const char* type)
409 return strncasecmp (raw_part->type, type, 32) == 0;
413 _rawpart_cmp_name (const MacRawPartition* raw_part, const char* name)
415 return strncasecmp (raw_part->name, name, 32) == 0;
419 _rawpart_is_partition_map (const MacRawPartition* raw_part)
421 return _rawpart_cmp_type (raw_part, "Apple_partition_map");
425 strncasestr (const char* haystack, const char* needle, int n)
427 int needle_size = strlen (needle);
430 for (i = 0; haystack[i] && i < n - needle_size; i++) {
431 if (strncasecmp (haystack + i, needle, needle_size) == 0)
439 _rawpart_is_boot (const MacRawPartition* raw_part)
441 if (!strcasecmp(raw_part->type, "Apple_Bootstrap"))
444 if (!strcasecmp(raw_part->type, "Apple_Boot"))
451 _rawpart_is_driver (const MacRawPartition* raw_part)
453 if (strncmp (raw_part->type, "Apple_", 6) != 0)
455 if (!strncasestr (raw_part->type, "driver", 32))
461 _rawpart_has_driver (const MacRawPartition* raw_part, MacDiskData* mac_disk_data)
463 MacDeviceDriver *driverlist;
465 uint32_t driver_bs, driver_be, part_be;
467 driverlist = &mac_disk_data->driverlist[0];
468 bsz = mac_disk_data->block_size / 512;
469 for (i = 0; i < mac_disk_data->driver_count; i++) {
470 driver_bs = driverlist->block * bsz;
471 driver_be = driver_bs + driverlist->size;
472 part_be = raw_part->start_block + raw_part->block_count;
473 if (driver_bs >= raw_part->start_block && driver_be <= part_be)
481 _rawpart_is_root (MacRawPartition* raw_part)
483 if (!_rawpart_cmp_type (raw_part, "Apple_UNIX_SVR2"))
485 if (strcmp (raw_part->name, "root") != 0)
491 _rawpart_is_swap (MacRawPartition* raw_part)
493 if (!_rawpart_cmp_type (raw_part, "Apple_UNIX_SVR2"))
495 if (strcmp (raw_part->name, "swap") != 0)
501 _rawpart_is_lvm (MacRawPartition* raw_part)
503 if (strcmp (raw_part->type, "Linux_LVM") != 0)
509 _rawpart_is_raid (MacRawPartition* raw_part)
511 if (strcmp (raw_part->type, "Linux_RAID") != 0)
517 _rawpart_is_void (MacRawPartition* raw_part)
519 return _rawpart_cmp_type (raw_part, "Apple_Void");
522 /* returns 1 if the raw_part represents a partition that is "unused space", or
523 * doesn't represent a partition at all. NOTE: some people make Apple_Free
524 * partitions with MacOS, because they can't select another type. So, if the
525 * name is anything other than "Extra" or "", it is treated as a "real"
529 _rawpart_is_active (MacRawPartition* raw_part)
531 if (_rawpart_cmp_type (raw_part, "Apple_Free")
532 && (_rawpart_cmp_name (raw_part, "Extra")
533 || _rawpart_cmp_name (raw_part, "")))
535 if (_rawpart_cmp_type (raw_part, "Apple_Void"))
537 if (_rawpart_cmp_type (raw_part, "Apple_Scratch"))
539 if (_rawpart_cmp_type (raw_part, "Apple_Extra"))
546 _rawpart_analyse (MacRawPartition* raw_part, PedDisk* disk, int num)
548 MacDiskData* mac_disk_data;
550 MacPartitionData* mac_part_data;
551 PedSector block_size;
552 PedSector start, length;
554 if (!_rawpart_check_signature (raw_part)) {
555 #ifndef DISCOVER_ONLY
556 if (ped_exception_throw (
557 PED_EXCEPTION_WARNING,
558 PED_EXCEPTION_IGNORE_CANCEL,
559 _("Partition %d has an invalid signature %x."),
561 (int) PED_BE16_TO_CPU (raw_part->signature))
562 != PED_EXCEPTION_IGNORE)
567 mac_disk_data = (MacDiskData*) disk->disk_specific;
568 block_size = disk->dev->sector_size / 512;
570 start = PED_BE32_TO_CPU (raw_part->start_block) * block_size;
571 length = PED_BE32_TO_CPU (raw_part->block_count) * block_size;
573 #ifndef DISCOVER_ONLY
574 ped_exception_throw (
576 PED_EXCEPTION_CANCEL,
577 _("Partition %d has an invalid length of 0 bytes!"),
582 part = ped_partition_new (disk, PED_PARTITION_NORMAL, NULL,
583 start, start + length - 1);
587 mac_part_data = part->disk_specific;
589 strncpy (mac_part_data->volume_name, raw_part->name, 32);
590 strncpy (mac_part_data->system_name, raw_part->type, 32);
591 strncpy (mac_part_data->processor_name, raw_part->processor, 16);
593 mac_part_data->is_boot = _rawpart_is_boot (raw_part);
594 mac_part_data->is_driver = _rawpart_is_driver (raw_part);
595 if (mac_part_data->is_driver)
596 mac_part_data->has_driver = _rawpart_has_driver(raw_part, mac_disk_data);
597 mac_part_data->is_root = _rawpart_is_root (raw_part);
598 mac_part_data->is_swap = _rawpart_is_swap (raw_part);
599 mac_part_data->is_lvm = _rawpart_is_lvm (raw_part);
600 mac_part_data->is_raid = _rawpart_is_raid (raw_part);
603 #ifndef DISCOVER_ONLY
604 if (raw_part->data_start) {
605 ped_exception_throw (
607 PED_EXCEPTION_CANCEL,
608 _("The data region doesn't start at the start "
609 "of the partition."));
610 goto error_destroy_part;
612 #endif /* !DISCOVER_ONLY */
613 mac_part_data->data_region_length
614 = PED_BE32_TO_CPU (raw_part->data_count) * block_size;
616 /* boot region - we have no idea what this is for, but Mac OSX
617 * seems to put garbage here, and doesn't pay any attention to
618 * it afterwards. [clausen, dan burcaw]
621 if (raw_part->boot_start) {
622 ped_exception_throw (
624 PED_EXCEPTION_CANCEL,
625 _("The boot region doesn't start at the start "
626 "of the partition."));
627 goto error_destroy_part;
630 mac_part_data->boot_region_length
631 = PED_BE32_TO_CPU (raw_part->boot_count) * block_size;
633 #ifndef DISCOVER_ONLY
634 if (mac_part_data->has_driver) {
635 if (mac_part_data->boot_region_length < part->geom.length) {
636 if (ped_exception_throw (
638 PED_EXCEPTION_IGNORE_CANCEL,
639 _("The partition's boot region doesn't occupy "
640 "the entire partition."))
641 != PED_EXCEPTION_IGNORE)
642 goto error_destroy_part;
645 if (mac_part_data->data_region_length < part->geom.length &&
646 !mac_part_data->is_boot) {
647 if (ped_exception_throw (
649 PED_EXCEPTION_IGNORE_CANCEL,
650 _("The partition's data region doesn't occupy "
651 "the entire partition."))
652 != PED_EXCEPTION_IGNORE)
653 goto error_destroy_part;
656 #endif /* !DISCOVER_ONLY */
658 mac_part_data->boot_base_address
659 = PED_BE32_TO_CPU (raw_part->boot_load);
660 mac_part_data->boot_entry_address
661 = PED_BE32_TO_CPU (raw_part->boot_entry);
662 mac_part_data->boot_checksum
663 = PED_BE32_TO_CPU (raw_part->boot_cksum);
665 mac_part_data->status = PED_BE32_TO_CPU (raw_part->status);
666 mac_part_data->driver_sig = PED_BE32_TO_CPU (raw_part->driver_sig);
671 ped_partition_destroy (part);
676 /* looks at the partition map size field in a mac raw partition, and calculates
677 * what the size of the partition map should be, from it
680 _rawpart_get_partmap_size (MacRawPartition* raw_part, PedDisk* disk)
682 MacDiskData* mac_disk_data = disk->disk_specific;
683 PedSector sector_size = disk->dev->sector_size / 512;
684 PedSector part_map_start;
685 PedSector part_map_end;
687 part_map_start = mac_disk_data->ghost_size;
688 part_map_end = sector_size * PED_BE32_TO_CPU (raw_part->map_count);
690 return part_map_end - part_map_start + 1;
694 _disk_analyse_block_size (PedDisk* disk, MacRawDisk* raw_disk)
696 PedSector block_size;
698 if (PED_BE16_TO_CPU (raw_disk->block_size) % 512) {
699 #ifndef DISCOVER_ONLY
700 ped_exception_throw (
702 PED_EXCEPTION_CANCEL,
703 _("Weird block size on device descriptor: %d bytes is "
704 "not divisible by 512."),
705 (int) PED_BE16_TO_CPU (raw_disk->block_size));
710 block_size = PED_BE16_TO_CPU (raw_disk->block_size) / 512;
711 if (block_size != disk->dev->sector_size / 512) {
712 #ifndef DISCOVER_ONLY
713 if (ped_exception_throw (
714 PED_EXCEPTION_WARNING,
715 PED_EXCEPTION_IGNORE_CANCEL,
716 _("The driver descriptor says the physical block size "
717 "is %d bytes, but Linux says it is %d bytes."),
718 (int) block_size * 512,
719 (int) disk->dev->sector_size)
720 != PED_EXCEPTION_IGNORE)
723 disk->dev->sector_size = block_size * 512;
732 /* Tries to figure out the block size used by the drivers, for the ghost
733 * partitioning scheme. Ghost partitioning works like this: the OpenFirmware
734 * (OF) sees 512 byte blocks, but some drivers use 2048 byte blocks (and,
735 * perhaps, some other number?). To remain compatible, the partition map
736 * only has "real" partition map entries on ghost-aligned block numbers (and
737 * the others are padded with Apple_Void partitions). This function tries
738 * to figure out what the "ghost-aligned" size is... (which, believe-it-or-not,
739 * doesn't always equal 2048!!!)
742 _disk_analyse_ghost_size (PedDisk* disk)
744 MacDiskData* mac_disk_data = disk->disk_specific;
746 void *buf = ped_malloc (disk->dev->sector_size);
752 for (i = 1; i < 64; i *= 2) {
753 if (!ped_device_read (disk->dev, buf, i, 1))
755 if (_rawpart_check_signature (buf)
756 && !_rawpart_is_void (buf)) {
757 mac_disk_data->ghost_size = i;
758 PED_ASSERT (i <= disk->dev->sector_size / 512, break);
765 #ifndef DISCOVER_ONLY
767 ped_exception_throw (
769 PED_EXCEPTION_CANCEL,
770 _("No valid partition map found."));
776 mac_read (PedDisk* disk)
778 MacDiskData* mac_disk_data;
781 PedSector ghost_size;
782 PedConstraint* constraint_exact;
783 int last_part_entry_num = 0;
785 PED_ASSERT (disk != NULL, return 0);
787 mac_disk_data = disk->disk_specific;
788 mac_disk_data->part_map_entry_num = 0; /* 0 == none */
791 if (!ptt_read_sector (disk->dev, 0, &buf))
794 MacRawDisk *raw_disk = (MacRawDisk *) buf;
796 if (!_check_signature (raw_disk))
799 if (!_disk_analyse_block_size (disk, raw_disk))
801 if (!_disk_analyse_ghost_size (disk))
803 ghost_size = mac_disk_data->ghost_size;
805 if (!ped_disk_delete_all (disk))
808 if (raw_disk->driver_count && raw_disk->driver_count < 62) {
809 memcpy(&mac_disk_data->driverlist[0], &raw_disk->driverlist[0],
810 sizeof(mac_disk_data->driverlist));
811 mac_disk_data->driver_count = raw_disk->driver_count;
812 mac_disk_data->block_size = raw_disk->block_size;
815 for (num=1; num==1 || num <= last_part_entry_num; num++) {
816 void *raw_part = buf;
817 if (!ped_device_read (disk->dev, raw_part,
818 num * ghost_size, 1))
819 goto error_delete_all;
821 if (!_rawpart_check_signature (raw_part))
826 = _rawpart_get_partmap_size (raw_part, disk);
827 if (_rawpart_get_partmap_size (raw_part, disk)
828 != last_part_entry_num) {
829 if (ped_exception_throw (
831 PED_EXCEPTION_IGNORE_CANCEL,
832 _("Conflicting partition map entry sizes! "
833 "Entry 1 says it is %d, but entry %d says "
836 _rawpart_get_partmap_size (raw_part, disk))
837 != PED_EXCEPTION_IGNORE)
838 goto error_delete_all;
841 if (!_rawpart_is_active (raw_part))
844 part = _rawpart_analyse (raw_part, disk, num);
846 goto error_delete_all;
848 part->fs_type = ped_file_system_probe (&part->geom);
849 constraint_exact = ped_constraint_exact (&part->geom);
850 if (!ped_disk_add_partition (disk, part, constraint_exact))
851 goto error_delete_all;
852 ped_constraint_destroy (constraint_exact);
854 if (_rawpart_is_partition_map (raw_part)) {
855 if (mac_disk_data->part_map_entry_num
856 && ped_exception_throw (
858 PED_EXCEPTION_IGNORE_CANCEL,
859 _("Weird! There are 2 partitions "
861 != PED_EXCEPTION_IGNORE)
862 goto error_delete_all;
864 mac_disk_data->part_map_entry_num = num;
865 mac_disk_data->part_map_entry_count
866 = part->geom.end - ghost_size + 1;
870 if (!mac_disk_data->part_map_entry_num) {
871 if (!_disk_add_part_map_entry (disk, 1))
872 goto error_delete_all;
873 ped_disk_commit_to_dev (disk);
879 ped_disk_delete_all (disk);
885 #ifndef DISCOVER_ONLY
886 /* The Ghost partition: is a blank entry, used to pad out each block (where
887 * there physical block size > 512 bytes). This is because OpenFirmware uses
888 * 512 byte blocks, but device drivers Think Different TM, with a different
889 * lbock size, so we need to do this to avoid a clash (!)
892 _pad_raw_part (PedDisk* disk, int num, MacRawPartition* part_map)
894 MacDiskData* mac_disk_data = disk->disk_specific;
897 size_t ss = disk->dev->sector_size;
898 void *buf = ped_calloc (ss);
902 MacRawPartition *ghost_entry = buf;
903 ghost_entry->signature = PED_CPU_TO_BE16 (MAC_PARTITION_MAGIC_2);
904 strcpy (ghost_entry->type, "Apple_Void");
905 ghost_entry->map_count
906 = PED_CPU_TO_BE32 (mac_disk_data->last_part_entry_num);
908 for (i=0; i < mac_disk_data->ghost_size - 1; i++) {
909 PedSector idx = i + (num - 1) * mac_disk_data->ghost_size;
910 memcpy ((char*)part_map + idx * ss, ghost_entry, ss);
918 _update_driver_count (MacRawPartition* part_map_entry,
919 MacDiskData *mac_driverdata, const MacDiskData* mac_disk_data)
921 uint16_t i, count_orig, count_cur, bsz;
922 uint32_t driver_bs, driver_be, part_be;
924 bsz = mac_disk_data->block_size / 512;
925 count_cur = mac_driverdata->driver_count;
926 count_orig = mac_disk_data->driver_count;
927 for (i = 0; i < count_orig; i++) {
928 driver_bs = mac_disk_data->driverlist[i].block * bsz;
929 driver_be = driver_bs + mac_disk_data->driverlist[i].size;
930 part_be = part_map_entry->start_block + part_map_entry->block_count;
931 if (driver_bs >= part_map_entry->start_block
932 && driver_be <= part_be) {
933 mac_driverdata->driverlist[count_cur].block
934 = mac_disk_data->driverlist[i].block;
935 mac_driverdata->driverlist[count_cur].size
936 = mac_disk_data->driverlist[i].size;
937 mac_driverdata->driverlist[count_cur].type
938 = mac_disk_data->driverlist[i].type;
939 mac_driverdata->driver_count++;
945 static MacRawPartition *
946 get_pme (MacRawPartition const *part_map, PedSector i, PedDisk const *disk)
948 MacDiskData const *mac_disk_data = disk->disk_specific;
949 PedSector idx = i * mac_disk_data->ghost_size - 1;
950 return (MacRawPartition *) ((char*)part_map
951 + idx * disk->dev->sector_size);
954 /* Initialize the disk->dev->sector_size bytes of part_map[part->num]. */
956 _generate_raw_part (PedDisk* disk, PedPartition* part,
957 MacRawPartition* part_map, MacDiskData *mac_driverdata)
959 MacDiskData* mac_disk_data;
960 MacPartitionData* mac_part_data;
961 PedSector block_size = disk->dev->sector_size / 512;
963 PED_ASSERT (part->num > 0, goto error);
965 mac_disk_data = disk->disk_specific;
966 mac_part_data = part->disk_specific;
968 MacRawPartition *part_map_entry = get_pme (part_map, part->num, disk);
969 memset (part_map_entry, 0, disk->dev->sector_size);
971 part_map_entry->signature = PED_CPU_TO_BE16 (MAC_PARTITION_MAGIC_2);
972 part_map_entry->map_count
973 = PED_CPU_TO_BE32 (mac_disk_data->last_part_entry_num);
974 part_map_entry->start_block
975 = PED_CPU_TO_BE32 (part->geom.start / block_size);
976 part_map_entry->block_count
977 = PED_CPU_TO_BE32 (part->geom.length / block_size);
978 strcpy (part_map_entry->name, mac_part_data->volume_name);
979 strcpy (part_map_entry->type, mac_part_data->system_name);
981 if (mac_part_data->is_driver) {
982 mac_part_data->boot_region_length = part->geom.length;
983 if (mac_part_data->has_driver)
984 _update_driver_count(part_map_entry, mac_driverdata,
987 mac_part_data->data_region_length = part->geom.length;
988 part_map_entry->data_count = PED_CPU_TO_BE32 (
989 mac_part_data->data_region_length / block_size);
990 part_map_entry->boot_count = PED_CPU_TO_BE32 (
991 mac_part_data->boot_region_length / block_size);
992 part_map_entry->status = PED_CPU_TO_BE32 (mac_part_data->status);
993 part_map_entry->driver_sig
994 = PED_CPU_TO_BE32 (mac_part_data->driver_sig);
996 part_map_entry->boot_load =
997 PED_CPU_TO_BE32 (mac_part_data->boot_base_address);
998 part_map_entry->boot_entry =
999 PED_CPU_TO_BE32 (mac_part_data->boot_entry_address);
1000 part_map_entry->boot_cksum =
1001 PED_CPU_TO_BE32 (mac_part_data->boot_checksum);
1003 strncpy (part_map_entry->processor, mac_part_data->processor_name, 16);
1005 if (!_pad_raw_part (disk, part->num, part_map))
1015 _generate_raw_freespace_part (PedDisk* disk, PedGeometry* geom, int num,
1016 MacRawPartition* part_map)
1018 MacDiskData* mac_disk_data = disk->disk_specific;
1019 PedSector block_size = disk->dev->sector_size / 512;
1021 PED_ASSERT (num > 0, goto error);
1023 MacRawPartition *part_map_entry = get_pme (part_map, num, disk);
1025 part_map_entry->signature = PED_CPU_TO_BE16 (MAC_PARTITION_MAGIC_2);
1026 part_map_entry->map_count
1027 = PED_CPU_TO_BE32 (mac_disk_data->last_part_entry_num);
1028 part_map_entry->start_block
1029 = PED_CPU_TO_BE32 (geom->start / block_size);
1030 part_map_entry->block_count
1031 = PED_CPU_TO_BE32 (geom->length / block_size);
1032 strcpy (part_map_entry->name, "Extra");
1033 strcpy (part_map_entry->type, "Apple_Free");
1035 part_map_entry->data_count = PED_CPU_TO_BE32 (geom->length);
1036 part_map_entry->status = 0;
1037 part_map_entry->driver_sig = 0;
1039 if (!_pad_raw_part (disk, num, part_map))
1049 _generate_empty_part (PedDisk* disk, int num, MacRawPartition* part_map)
1051 MacDiskData* mac_disk_data = disk->disk_specific;
1053 PED_ASSERT (num > 0, return 0);
1055 MacRawPartition *part_map_entry = get_pme (part_map, num, disk);
1056 part_map_entry->signature = PED_CPU_TO_BE16 (MAC_PARTITION_MAGIC_2);
1057 part_map_entry->map_count
1058 = PED_CPU_TO_BE32 (mac_disk_data->last_part_entry_num);
1059 strcpy (part_map_entry->type, "Apple_Void");
1061 return _pad_raw_part (disk, num, part_map);
1064 /* returns the first empty entry in the partition map */
1066 _get_first_empty_part_entry (PedDisk* disk, MacRawPartition* part_map)
1068 MacDiskData* mac_disk_data = disk->disk_specific;
1071 for (i=1; i <= mac_disk_data->last_part_entry_num; i++) {
1072 MacRawPartition *part_map_entry = get_pme (part_map, i, disk);
1073 if (!part_map_entry->signature)
1081 write_block_zero (PedDisk* disk, MacDiskData* mac_driverdata)
1083 PedDevice* dev = disk->dev;
1085 if (!ptt_read_sector (dev, 0, &s0))
1087 MacRawDisk *raw_disk = (MacRawDisk *) s0;
1089 raw_disk->signature = PED_CPU_TO_BE16 (MAC_DISK_MAGIC);
1090 raw_disk->block_size = PED_CPU_TO_BE16 (dev->sector_size);
1091 raw_disk->block_count
1092 = PED_CPU_TO_BE32 (dev->length / (dev->sector_size / 512));
1094 raw_disk->driver_count = mac_driverdata->driver_count;
1095 memcpy(&raw_disk->driverlist[0], &mac_driverdata->driverlist[0],
1096 sizeof(raw_disk->driverlist));
1098 int write_ok = ped_device_write (dev, raw_disk, 0, 1);
1104 mac_write (PedDisk* disk)
1106 MacRawPartition* part_map;
1107 MacDiskData* mac_disk_data;
1108 MacDiskData* mac_driverdata; /* updated driver list */
1112 PED_ASSERT (disk != NULL, return 0);
1113 PED_ASSERT (disk->disk_specific != NULL, return 0);
1114 PED_ASSERT (disk->dev != NULL, return 0);
1115 PED_ASSERT (!disk->update_mode, return 0);
1117 mac_disk_data = disk->disk_specific;
1119 if (!ped_disk_get_partition (disk, mac_disk_data->part_map_entry_num)) {
1120 if (!_disk_add_part_map_entry (disk, 1))
1124 mac_driverdata = ped_malloc(sizeof(MacDiskData));
1125 if (!mac_driverdata)
1127 memset (mac_driverdata, 0, sizeof(MacDiskData));
1129 size_t pmap_bytes = (mac_disk_data->part_map_entry_count
1130 * mac_disk_data->ghost_size
1131 * disk->dev->sector_size);
1132 part_map = (MacRawPartition*) ped_calloc (pmap_bytes);
1134 goto error_free_driverdata;
1136 /* write (to memory) the "real" partitions */
1137 for (part = ped_disk_next_partition (disk, NULL); part;
1138 part = ped_disk_next_partition (disk, part)) {
1139 if (!ped_partition_is_active (part))
1141 if (!_generate_raw_part (disk, part, part_map, mac_driverdata))
1142 goto error_free_part_map;
1145 /* write the "free space" partitions */
1146 for (part = ped_disk_next_partition (disk, NULL); part;
1147 part = ped_disk_next_partition (disk, part)) {
1148 if (part->type != PED_PARTITION_FREESPACE)
1150 num = _get_first_empty_part_entry (disk, part_map);
1151 if (!_generate_raw_freespace_part (disk, &part->geom, num,
1153 goto error_free_part_map;
1156 /* write the "void" (empty) partitions */
1157 for (num = _get_first_empty_part_entry (disk, part_map); num;
1158 num = _get_first_empty_part_entry (disk, part_map))
1159 _generate_empty_part (disk, num, part_map);
1162 if (!ped_device_write (disk->dev, part_map, 1,
1163 mac_disk_data->part_map_entry_count))
1164 goto error_free_part_map;
1166 return write_block_zero (disk, mac_driverdata);
1168 error_free_part_map:
1170 error_free_driverdata:
1171 free (mac_driverdata);
1175 #endif /* !DISCOVER_ONLY */
1177 static PedPartition*
1179 const PedDisk* disk, PedPartitionType part_type,
1180 const PedFileSystemType* fs_type, PedSector start, PedSector end)
1183 MacPartitionData* mac_data;
1185 part = _ped_partition_alloc (disk, part_type, fs_type, start, end);
1189 if (ped_partition_is_active (part)) {
1191 = mac_data = ped_malloc (sizeof (MacPartitionData));
1193 goto error_free_part;
1195 memset (mac_data, 0, sizeof (MacPartitionData));
1196 strcpy (mac_data->volume_name, "untitled");
1198 part->disk_specific = NULL;
1208 static PedPartition*
1209 mac_partition_duplicate (const PedPartition* part)
1211 PedPartition* new_part;
1212 MacPartitionData* new_mac_data;
1213 MacPartitionData* old_mac_data;
1215 new_part = ped_partition_new (part->disk, part->type,
1216 part->fs_type, part->geom.start,
1220 new_part->num = part->num;
1222 old_mac_data = (MacPartitionData*) part->disk_specific;
1223 new_mac_data = (MacPartitionData*) new_part->disk_specific;
1225 /* ugly, but C is ugly :p */
1226 memcpy (new_mac_data, old_mac_data, sizeof (MacPartitionData));
1231 mac_partition_destroy (PedPartition* part)
1233 PED_ASSERT (part != NULL, return);
1235 if (ped_partition_is_active (part))
1236 free (part->disk_specific);
1241 mac_partition_set_system (PedPartition* part, const PedFileSystemType* fs_type)
1243 MacPartitionData* mac_data = part->disk_specific;
1245 part->fs_type = fs_type;
1247 if (fs_type && is_linux_swap (fs_type->name))
1248 ped_partition_set_flag (part, PED_PARTITION_SWAP, 1);
1250 if (mac_data->is_boot) {
1251 strcpy (mac_data->system_name, "Apple_Bootstrap");
1252 mac_data->status = 0x33;
1256 if (fs_type && (!strcmp (fs_type->name, "hfs")
1257 || !strcmp (fs_type->name, "hfs+"))) {
1258 strcpy (mac_data->system_name, "Apple_HFS");
1259 mac_data->status |= 0x7f;
1260 } else if (fs_type && !strcmp (fs_type->name, "hfsx")) {
1261 strcpy (mac_data->system_name, "Apple_HFSX");
1262 mac_data->status |= 0x7f;
1264 strcpy (mac_data->system_name, "Apple_UNIX_SVR2");
1265 mac_data->status = 0x33;
1272 mac_partition_set_flag (PedPartition* part, PedPartitionFlag flag, int state)
1274 MacPartitionData* mac_data;
1276 PED_ASSERT (part != NULL, return 0);
1277 PED_ASSERT (part->disk_specific != NULL, return 0);
1279 mac_data = part->disk_specific;
1282 case PED_PARTITION_BOOT:
1283 mac_data->is_boot = state;
1286 return mac_partition_set_system (part, part->fs_type);
1289 strcpy (mac_data->system_name, "Apple_Bootstrap");
1290 mac_data->status = 0x33;
1294 case PED_PARTITION_ROOT:
1296 strcpy (mac_data->volume_name, "root");
1297 mac_data->is_swap = 0;
1299 if (mac_data->is_root)
1300 strcpy (mac_data->volume_name, "untitled");
1302 mac_data->is_root = state;
1305 case PED_PARTITION_SWAP:
1307 strcpy (mac_data->volume_name, "swap");
1308 mac_data->is_root = 0;
1310 if (mac_data->is_swap)
1311 strcpy (mac_data->volume_name, "untitled");
1313 mac_data->is_swap = state;
1316 case PED_PARTITION_LVM:
1318 strcpy (mac_data->system_name, "Linux_LVM");
1319 mac_data->is_lvm = state;
1321 if (mac_data->is_lvm)
1322 mac_partition_set_system (part, part->fs_type);
1326 case PED_PARTITION_RAID:
1328 strcpy (mac_data->system_name, "Linux_RAID");
1329 mac_data->is_raid = state;
1331 if (mac_data->is_raid)
1332 mac_partition_set_system (part, part->fs_type);
1342 mac_partition_get_flag (const PedPartition* part, PedPartitionFlag flag)
1344 MacPartitionData* mac_data;
1346 PED_ASSERT (part != NULL, return 0);
1347 PED_ASSERT (part->disk_specific != NULL, return 0);
1349 mac_data = part->disk_specific;
1351 case PED_PARTITION_BOOT:
1352 return mac_data->is_boot;
1354 case PED_PARTITION_ROOT:
1355 return mac_data->is_root;
1357 case PED_PARTITION_SWAP:
1358 return mac_data->is_swap;
1360 case PED_PARTITION_LVM:
1361 return mac_data->is_lvm;
1363 case PED_PARTITION_RAID:
1364 return mac_data->is_raid;
1372 mac_partition_is_flag_available (
1373 const PedPartition* part, PedPartitionFlag flag)
1376 case PED_PARTITION_BOOT:
1377 case PED_PARTITION_ROOT:
1378 case PED_PARTITION_SWAP:
1379 case PED_PARTITION_LVM:
1380 case PED_PARTITION_RAID:
1389 mac_partition_set_name (PedPartition* part, const char* name)
1391 MacPartitionData* mac_data;
1394 PED_ASSERT (part != NULL, return);
1395 PED_ASSERT (part->disk_specific != NULL, return);
1396 mac_data = part->disk_specific;
1398 #ifndef DISCOVER_ONLY
1399 if (mac_data->is_root || mac_data->is_swap) {
1400 if (ped_exception_throw (
1401 PED_EXCEPTION_WARNING,
1402 PED_EXCEPTION_IGNORE_CANCEL,
1403 _("Changing the name of a root or swap partition "
1404 "will prevent Linux from recognising it as such."))
1405 != PED_EXCEPTION_IGNORE)
1407 mac_data->is_root = mac_data->is_swap = 0;
1411 strncpy (mac_data->volume_name, name, 32);
1412 mac_data->volume_name [32] = 0;
1413 for (i = strlen (mac_data->volume_name) - 1;
1414 mac_data->volume_name[i] == ' '; i--)
1415 mac_data->volume_name [i] = 0;
1419 mac_partition_get_name (const PedPartition* part)
1421 MacPartitionData* mac_data;
1423 PED_ASSERT (part != NULL, return NULL);
1424 PED_ASSERT (part->disk_specific != NULL, return NULL);
1425 mac_data = part->disk_specific;
1427 return mac_data->volume_name;
1430 static PedAlignment*
1431 mac_get_partition_alignment(const PedDisk *disk)
1433 PedSector sector_size = disk->dev->sector_size / 512;
1435 return ped_alignment_new(0, sector_size);
1438 static PedConstraint*
1439 _primary_constraint (PedDisk* disk)
1441 PedAlignment start_align;
1442 PedAlignment end_align;
1443 PedGeometry max_geom;
1444 PedSector sector_size;
1446 sector_size = disk->dev->sector_size / 512;
1448 if (!ped_alignment_init (&start_align, 0, sector_size))
1450 if (!ped_alignment_init (&end_align, -1, sector_size))
1452 if (!ped_geometry_init (&max_geom, disk->dev, 1, disk->dev->length - 1))
1455 return ped_constraint_new (&start_align, &end_align, &max_geom,
1456 &max_geom, 1, disk->dev->length);
1460 mac_partition_align (PedPartition* part, const PedConstraint* constraint)
1462 PED_ASSERT (part != NULL, return 0);
1464 if (_ped_partition_attempt_align (part, constraint,
1465 _primary_constraint (part->disk)))
1468 #ifndef DISCOVER_ONLY
1469 ped_exception_throw (
1470 PED_EXCEPTION_ERROR,
1471 PED_EXCEPTION_CANCEL,
1472 _("Unable to satisfy all constraints on the partition."));
1478 mac_partition_enumerate (PedPartition* part)
1481 MacDiskData* mac_disk_data;
1485 PED_ASSERT (part != NULL, return 0);
1486 PED_ASSERT (part->disk != NULL, return 0);
1489 mac_disk_data = (MacDiskData*) disk->disk_specific;
1491 max_part_count = ped_disk_get_max_primary_partition_count (disk);
1493 if (part->num > 0 && part->num <= mac_disk_data->part_map_entry_count)
1496 for (i = 1; i <= max_part_count; i++) {
1497 if (!ped_disk_get_partition (disk, i)) {
1503 #ifndef DISCOVER_ONLY
1504 ped_exception_throw (
1505 PED_EXCEPTION_ERROR,
1506 PED_EXCEPTION_CANCEL,
1507 _("Can't add another partition -- the partition map is too "
1515 _disk_count_partitions (PedDisk* disk)
1517 MacDiskData* mac_disk_data = disk->disk_specific;
1518 PedPartition* part = NULL;
1519 PedPartition* last = NULL;
1521 PED_ASSERT (disk->update_mode, return 0);
1523 mac_disk_data->active_part_entry_count = 0;
1524 mac_disk_data->free_part_entry_count = 0;
1525 mac_disk_data->last_part_entry_num = 0;
1527 /* subtle: we only care about free space after the partition map.
1528 * the partition map is an "active" partition, BTW... */
1529 for (part = ped_disk_next_partition (disk, part); part;
1530 part = ped_disk_next_partition (disk, part)) {
1531 if (!ped_partition_is_active (part))
1534 mac_disk_data->active_part_entry_count++;
1535 if (last && last->geom.end + 1 < part->geom.start)
1536 mac_disk_data->free_part_entry_count++;
1537 mac_disk_data->last_part_entry_num
1538 = PED_MAX (mac_disk_data->last_part_entry_num,
1544 if (last && last->geom.end < disk->dev->length - 1)
1545 mac_disk_data->free_part_entry_count++;
1547 mac_disk_data->last_part_entry_num
1548 = PED_MAX (mac_disk_data->last_part_entry_num,
1549 mac_disk_data->active_part_entry_count
1550 + mac_disk_data->free_part_entry_count);
1555 add_metadata_part (PedDisk* disk, PedSector start, PedSector end)
1557 PedPartition* new_part;
1558 PedConstraint* constraint_any = ped_constraint_any (disk->dev);
1560 PED_ASSERT (disk != NULL, return 0);
1562 new_part = ped_partition_new (disk, PED_PARTITION_METADATA, NULL,
1566 if (!ped_disk_add_partition (disk, new_part, constraint_any))
1567 goto error_destroy_new_part;
1569 ped_constraint_destroy (constraint_any);
1572 error_destroy_new_part:
1573 ped_partition_destroy (new_part);
1575 ped_constraint_destroy (constraint_any);
1580 mac_alloc_metadata (PedDisk* disk)
1582 PED_ASSERT (disk != NULL, return 0);
1583 PED_ASSERT (disk->disk_specific != NULL, return 0);
1584 PED_ASSERT (disk->dev != NULL, return 0);
1586 if (!add_metadata_part (disk, 0, disk->dev->sector_size / 512 - 1))
1589 /* hack: this seems to be a good place, to update the partition map
1590 * entry count, since mac_alloc_metadata() gets called during
1591 * _disk_pop_update_mode()
1593 return _disk_count_partitions (disk);
1597 mac_get_max_primary_partition_count (const PedDisk* disk)
1599 MacDiskData* mac_disk_data = disk->disk_specific;
1600 PedPartition* part_map_partition;
1602 part_map_partition = ped_disk_get_partition (disk,
1603 mac_disk_data->part_map_entry_num);
1605 /* HACK: if we haven't found the partition map partition (yet),
1608 if (!part_map_partition) {
1609 mac_disk_data->part_map_entry_num = 0;
1613 /* HACK: since Mac labels need an entry for free-space regions, we
1614 * must allow half plus 1 entries for free-space partitions. I hate
1615 * this, but things get REALLY complicated, otherwise.
1616 * (I'm prepared to complicate things later, but I want to get
1617 * everything working, first)
1619 return mac_disk_data->part_map_entry_count / mac_disk_data->ghost_size
1620 - mac_disk_data->free_part_entry_count + 1;
1624 mac_get_max_supported_partition_count (const PedDisk* disk, int *max_n)
1630 #include "pt-common.h"
1631 PT_define_limit_functions (mac)
1633 static PedDiskOps mac_disk_ops = {
1634 clobber: NULL_IF_DISCOVER_ONLY (mac_clobber),
1635 /* FIXME: remove this cast, once mac_write is fixed not to
1636 modify its *DISK parameter. */
1637 write: NULL_IF_DISCOVER_ONLY ((int (*) (const PedDisk*)) mac_write),
1639 partition_set_name: mac_partition_set_name,
1640 partition_get_name: mac_partition_get_name,
1642 get_partition_alignment: mac_get_partition_alignment,
1644 PT_op_function_initializers (mac)
1647 static PedDiskType mac_disk_type = {
1651 features: PED_DISK_TYPE_PARTITION_NAME
1655 ped_disk_mac_init ()
1657 PED_ASSERT (sizeof (MacRawPartition) == 512, return);
1658 PED_ASSERT (sizeof (MacRawDisk) == 512, return);
1660 ped_disk_type_register (&mac_disk_type);
1664 ped_disk_mac_done ()
1666 ped_disk_type_unregister (&mac_disk_type);