/* -*- Mode: c; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
libparted - a library for manipulating disk partitions
Copyright (C) 2000-2001, 2005, 2007-2014, 2019-2022 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
Contributor: Ben Collins
*/
#include
#include
#include
#include
#include
#if ENABLE_NLS
# include
# define _(String) dgettext (PACKAGE, String)
#else
# define _(String) (String)
#endif /* ENABLE_NLS */
#include "misc.h"
#include "pt-tools.h"
#include "verify.h"
/* Most of this came from util-linux's sun support, which was mostly done
by Jakub Jelinek. */
#define SUN_DISK_MAGIC 0xDABE /* Disk magic number */
#define SUN_DISK_MAXPARTITIONS 8
#define SUN_VTOC_VERSION 1
#define SUN_VTOC_SANITY 0x600DDEEE
#define WHOLE_DISK_ID 0x05
#define WHOLE_DISK_PART 2 /* as in 0, 1, 2 (3rd partition) */
#define LINUX_SWAP_ID 0x82
typedef struct _SunRawPartition SunRawPartition;
typedef struct _SunPartitionInfo SunPartitionInfo;
typedef struct _SunRawLabel SunRawLabel;
typedef struct _SunPartitionData SunPartitionData;
typedef struct _SunDiskData SunDiskData;
struct __attribute__ ((packed)) _SunRawPartition {
u_int32_t start_cylinder; /* where the part starts... */
u_int32_t num_sectors; /* ...and it's length */
};
struct __attribute__ ((packed)) _SunPartitionInfo {
u_int8_t spare1;
u_int8_t id; /* Partition type */
u_int8_t spare2;
u_int8_t flags; /* Partition flags */
};
struct __attribute__ ((packed, aligned(2))) _SunRawLabel {
char info[128]; /* Informative text string */
u_int32_t version; /* Layout version */
u_int8_t volume[8]; /* Volume name */
u_int16_t nparts; /* Number of partitions */
SunPartitionInfo infos[SUN_DISK_MAXPARTITIONS];
u_int16_t padding; /* Alignment padding */
u_int32_t bootinfo[3]; /* Info needed by mboot */
u_int32_t sanity; /* To verify vtoc sanity */
u_int32_t reserved[10]; /* Free space */
u_int32_t timestamp[8]; /* Partition timestamp */
u_int32_t write_reinstruct; /* sectors to skip, writes */
u_int32_t read_reinstruct; /* sectors to skip, reads */
u_int8_t spare1[148]; /* Padding */
u_int16_t rspeed; /* Disk rotational speed */
u_int16_t pcylcount; /* Physical cylinder count */
u_int16_t sparecyl; /* extra sects per cylinder */
u_int8_t spare2[4]; /* More magic... */
u_int16_t ilfact; /* Interleave factor */
u_int16_t ncyl; /* Data cylinder count */
u_int16_t nacyl; /* Alt. cylinder count */
u_int16_t ntrks; /* Tracks per cylinder */
u_int16_t nsect; /* Sectors per track */
u_int8_t spare3[4]; /* Even more magic... */
SunRawPartition partitions[SUN_DISK_MAXPARTITIONS];
u_int16_t magic; /* Magic number */
u_int16_t csum; /* Label xor'd checksum */
};
struct _SunPartitionData {
u_int8_t type;
int is_boot;
int is_root;
int is_lvm;
int is_raid;
};
struct _SunDiskData {
PedSector length; /* This is based on cyl - alt-cyl */
SunRawLabel raw_label;
};
static PedDiskType sun_disk_type;
/* Checksum computation */
static void
sun_compute_checksum (SunRawLabel *label)
{
u_int16_t *ush = (u_int16_t *)label;
u_int16_t csum = 0;
while(ush < (u_int16_t *)(&label->csum))
csum ^= *ush++;
label->csum = csum;
}
/* Checksum Verification */
static int
sun_verify_checksum (SunRawLabel const *label)
{
u_int16_t *ush = ((u_int16_t *)(label + 1)) - 1;
u_int16_t csum = 0;
while (ush >= (u_int16_t *)label)
csum ^= *ush--;
return !csum;
}
static int
sun_probe (const PedDevice *dev)
{
PED_ASSERT (dev != NULL);
void *s0;
if (!ptt_read_sector (dev, 0, &s0))
return 0;
SunRawLabel const *label = (void const *) s0;
int ok = 1;
/* check magic */
if (PED_BE16_TO_CPU (label->magic) != SUN_DISK_MAGIC) {
ok = 0;
} else {
#ifndef DISCOVER_ONLY
if (!sun_verify_checksum(label)) {
ok = 0;
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Corrupted Sun disk label detected."));
}
}
#endif
free (s0);
return ok;
}
static PedDisk*
sun_alloc (const PedDevice* dev)
{
PedDisk* disk;
SunRawLabel* label;
SunDiskData* sun_specific;
const PedCHSGeometry* bios_geom = &dev->bios_geom;
PedSector cyl_size = bios_geom->sectors * bios_geom->heads;
PED_ASSERT (cyl_size != 0);
disk = _ped_disk_alloc (dev, &sun_disk_type);
if (!disk)
goto error;
disk->disk_specific = (SunDiskData*) ped_malloc (sizeof (SunDiskData));
if (!disk->disk_specific)
goto error_free_disk;
sun_specific = (SunDiskData*) disk->disk_specific;
PED_ASSERT (bios_geom->cylinders == (PedSector) (dev->length / cyl_size));
sun_specific->length = ped_round_down_to (dev->length, cyl_size);
label = &sun_specific->raw_label;
memset(label, 0, sizeof(SunRawLabel));
/* #gentoo-sparc people agree that nacyl = 0 is the best option */
label->magic = PED_CPU_TO_BE16 (SUN_DISK_MAGIC);
label->nacyl = 0;
label->pcylcount = PED_CPU_TO_BE16 (bios_geom->cylinders);
label->rspeed = PED_CPU_TO_BE16 (5400);
label->ilfact = PED_CPU_TO_BE16 (1);
label->sparecyl = 0;
label->ntrks = PED_CPU_TO_BE16 (bios_geom->heads);
label->nsect = PED_CPU_TO_BE16 (bios_geom->sectors);
label->ncyl = PED_CPU_TO_BE16 (dev->length / cyl_size);
label->sanity = PED_CPU_TO_BE32 (SUN_VTOC_SANITY);
label->version = PED_CPU_TO_BE32 (SUN_VTOC_VERSION);
label->nparts = PED_CPU_TO_BE16 (SUN_DISK_MAXPARTITIONS);
/* Add a whole disk partition at a minimum */
label->infos[WHOLE_DISK_PART].id = WHOLE_DISK_ID;
label->partitions[WHOLE_DISK_PART].start_cylinder = 0;
label->partitions[WHOLE_DISK_PART].num_sectors =
PED_CPU_TO_BE32(sun_specific->length);
/* Now a neato string to describe this label */
snprintf(label->info, sizeof(label->info) - 1,
"GNU Parted Custom cyl %d alt %d hd %d sec %d",
PED_BE16_TO_CPU(label->ncyl),
PED_BE16_TO_CPU(label->nacyl),
PED_BE16_TO_CPU(label->ntrks),
PED_BE16_TO_CPU(label->nsect));
sun_compute_checksum(label);
return disk;
error_free_disk:
_ped_disk_free (disk);
error:
return NULL;
}
static PedDisk*
sun_duplicate (const PedDisk* disk)
{
PedDisk* new_disk;
SunDiskData* new_sun_data;
SunDiskData* old_sun_data = (SunDiskData*) disk->disk_specific;
new_disk = ped_disk_new_fresh (disk->dev, &sun_disk_type);
if (!new_disk)
return NULL;
new_sun_data = (SunDiskData*) new_disk->disk_specific;
memcpy (new_sun_data, old_sun_data, sizeof (SunDiskData));
return new_disk;
}
static void
sun_free (PedDisk *disk)
{
free (disk->disk_specific);
_ped_disk_free (disk);
}
static int
_check_geometry_sanity (PedDisk* disk, SunRawLabel* label)
{
PedDevice* dev = disk->dev;
if (PED_BE16_TO_CPU(label->nsect) == dev->hw_geom.sectors &&
PED_BE16_TO_CPU(label->ntrks) == dev->hw_geom.heads)
dev->bios_geom = dev->hw_geom;
if (!!PED_BE16_TO_CPU(label->pcylcount)
* !!PED_BE16_TO_CPU(label->ntrks)
* !!PED_BE16_TO_CPU(label->nsect) == 0)
return 0;
if (PED_BE16_TO_CPU(label->nsect) != dev->bios_geom.sectors ||
PED_BE16_TO_CPU(label->ntrks) != dev->bios_geom.heads) {
#ifndef DISCOVER_ONLY
if (ped_exception_throw (
PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE_CANCEL,
_("The disk CHS geometry (%d,%d,%d) reported "
"by the operating system does not match "
"the geometry stored on the disk label "
"(%d,%d,%d)."),
dev->bios_geom.cylinders,
dev->bios_geom.heads,
dev->bios_geom.sectors,
PED_BE16_TO_CPU(label->pcylcount),
PED_BE16_TO_CPU(label->ntrks),
PED_BE16_TO_CPU(label->nsect))
== PED_EXCEPTION_CANCEL)
return 0;
#endif
dev->bios_geom.sectors = PED_BE16_TO_CPU(label->nsect);
dev->bios_geom.heads = PED_BE16_TO_CPU(label->ntrks);
dev->bios_geom.cylinders = PED_BE16_TO_CPU(label->pcylcount);
if (dev->bios_geom.sectors * dev->bios_geom.heads
* dev->bios_geom.cylinders > dev->length) {
if (ped_exception_throw (
PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE_CANCEL,
_("The disk label describes a disk bigger than "
"%s."),
dev->path)
!= PED_EXCEPTION_IGNORE)
return 0;
}
}
return 1;
}
static int
sun_read (PedDisk* disk)
{
SunPartitionData* sun_data;
SunDiskData* disk_data;
int i;
PedPartition* part;
PedSector end, start, block;
PED_ASSERT (disk != NULL);
PED_ASSERT (disk->dev != NULL);
PED_ASSERT (disk->disk_specific != NULL);
disk_data = (SunDiskData*) disk->disk_specific;
ped_disk_delete_all (disk);
void *s0;
if (!ptt_read_sector (disk->dev, 0, &s0))
goto error;
SunRawLabel *label = &disk_data->raw_label;
verify (sizeof (*label) == 512);
memcpy (label, s0, sizeof (*label));
free (s0);
if (!_check_geometry_sanity (disk, label))
goto error;
block = disk->dev->bios_geom.sectors * disk->dev->bios_geom.heads;
disk_data->length = block * disk->dev->bios_geom.cylinders;
for (i = 0; i < SUN_DISK_MAXPARTITIONS; i++) {
if (!PED_BE32_TO_CPU(label->partitions[i].num_sectors))
continue;
if (!label->infos[i].id)
continue;
if (label->infos[i].id == WHOLE_DISK_ID)
continue;
start = PED_BE32_TO_CPU(label->partitions[i].start_cylinder)
* block;
end = start
+ PED_BE32_TO_CPU(label->partitions[i].num_sectors) - 1;
part = ped_partition_new (disk, PED_PARTITION_NORMAL, NULL,
start, end);
if (!part)
goto error;
sun_data = part->disk_specific;
sun_data->type = label->infos[i].id;
sun_data->is_boot = sun_data->type == 0x1;
sun_data->is_root = sun_data->type == 0x2;
sun_data->is_lvm = sun_data->type == 0x8e;
sun_data->is_raid = sun_data->type == 0xfd;
part->num = i + 1;
part->fs_type = ped_file_system_probe (&part->geom);
PedConstraint *constraint_exact
= ped_constraint_exact (&part->geom);
if (constraint_exact == NULL)
goto error;
bool ok = ped_disk_add_partition (disk, part, constraint_exact);
ped_constraint_destroy (constraint_exact);
if (!ok)
goto error;
}
return 1;
error:
return 0;
}
#ifndef DISCOVER_ONLY
static int
_use_old_info (const PedDisk* disk, const void *sector_0)
{
SunRawLabel const *old_label = sector_0;
if (old_label->info[0]
&& PED_BE16_TO_CPU (old_label->magic) == SUN_DISK_MAGIC) {
SunDiskData *sun_specific = disk->disk_specific;
memcpy (&sun_specific->raw_label, sector_0,
sizeof (sun_specific->raw_label));
verify (sizeof (sun_specific->raw_label) == 512);
}
return 1;
}
static int
sun_write (const PedDisk* disk)
{
SunRawLabel* label;
SunPartitionData* sun_data;
SunDiskData* disk_data;
PedPartition* part;
int i;
PED_ASSERT (disk != NULL);
PED_ASSERT (disk->dev != NULL);
void *s0;
if (!ptt_read_sector (disk->dev, 0, &s0))
return 0;
/* Calling _use_old_info here in sun_write
above seems wrong, because it modifies *DISK.
FIXME: maybe later. */
if (!_use_old_info (disk, s0)) {
free (s0);
return 0;
}
disk_data = (SunDiskData*) disk->disk_specific;
label = &disk_data->raw_label;
memset (label->partitions, 0,
sizeof (SunRawPartition) * SUN_DISK_MAXPARTITIONS);
memset (label->infos, 0,
sizeof (SunPartitionInfo) * SUN_DISK_MAXPARTITIONS);
for (i = 0; i < SUN_DISK_MAXPARTITIONS; i++) {
part = ped_disk_get_partition (disk, i + 1);
if (!part && i == WHOLE_DISK_PART) {
/* Ok, nothing explicitly in the whole disk
partition, so let's put it there for safety
sake. */
label->infos[i].id = WHOLE_DISK_ID;
label->partitions[i].start_cylinder = 0;
label->partitions[i].num_sectors =
PED_CPU_TO_BE32(disk_data->length);
continue;
}
if (!part)
continue;
sun_data = part->disk_specific;
label->infos[i].id = sun_data->type;
label->partitions[i].start_cylinder
= PED_CPU_TO_BE32 (part->geom.start
/ (disk->dev->bios_geom.sectors
* disk->dev->bios_geom.heads));
label->partitions[i].num_sectors
= PED_CPU_TO_BE32 (part->geom.end
- part->geom.start + 1);
}
/* We assume the harddrive is always right, and that the label may
be wrong. I don't think this will cause any problems, since the
cylinder count is always enforced by our alignment, and we
sanity checked the sectors/heads when we detected the device. The
worst that could happen here is that the drive seems bigger or
smaller than it really is, but we'll have that problem even if we
don't do this. */
if (disk->dev->bios_geom.cylinders > 65536) {
ped_exception_throw (
PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE,
_("The disk has %d cylinders, which is greater than "
"the maximum of 65536."),
disk->dev->bios_geom.cylinders);
}
label->pcylcount = PED_CPU_TO_BE16 (disk->dev->bios_geom.cylinders);
label->ncyl = PED_CPU_TO_BE16 (disk->dev->bios_geom.cylinders
- PED_BE16_TO_CPU (label->nacyl));
sun_compute_checksum (label);
verify (sizeof *label == 512);
memcpy (s0, label, sizeof *label);
int write_ok = ped_device_write (disk->dev, s0, 0, 1);
free (s0);
if (write_ok)
return ped_device_sync (disk->dev);
return 0;
}
#endif /* !DISCOVER_ONLY */
static PedPartition*
sun_partition_new (const PedDisk* disk, PedPartitionType part_type,
const PedFileSystemType* fs_type,
PedSector start, PedSector end)
{
PedPartition* part;
SunPartitionData* sun_data;
part = _ped_partition_alloc (disk, part_type, fs_type, start, end);
if (!part)
goto error;
if (ped_partition_is_active (part)) {
part->disk_specific
= sun_data = ped_malloc (sizeof (SunPartitionData));
if (!sun_data)
goto error_free_part;
sun_data->type = 0;
sun_data->is_boot = 0;
sun_data->is_root = 0;
sun_data->is_lvm = 0;
sun_data->is_raid = 0;
} else {
part->disk_specific = NULL;
}
return part;
error_free_part:
free (part);
error:
return NULL;
}
static PedPartition*
sun_partition_duplicate (const PedPartition* part)
{
PedPartition* new_part;
SunPartitionData* new_sun_data;
SunPartitionData* old_sun_data;
new_part = ped_partition_new (part->disk, part->type,
part->fs_type, part->geom.start,
part->geom.end);
if (!new_part)
return NULL;
new_part->num = part->num;
old_sun_data = (SunPartitionData*) part->disk_specific;
new_sun_data = (SunPartitionData*) new_part->disk_specific;
new_sun_data->type = old_sun_data->type;
new_sun_data->is_boot = old_sun_data->is_boot;
new_sun_data->is_root = old_sun_data->is_root;
new_sun_data->is_lvm = old_sun_data->is_lvm;
new_sun_data->is_raid = old_sun_data->is_raid;
return new_part;
}
static void
sun_partition_destroy (PedPartition* part)
{
PED_ASSERT (part != NULL);
if (ped_partition_is_active (part))
free (part->disk_specific);
free (part);
}
static int
sun_partition_set_system (PedPartition* part, const PedFileSystemType* fs_type)
{
SunPartitionData* sun_data = part->disk_specific;
part->fs_type = fs_type;
if (sun_data->is_boot) {
sun_data->type = 0x1;
return 1;
}
if (sun_data->is_root) {
sun_data->type = 0x2;
return 1;
}
if (sun_data->is_lvm) {
sun_data->type = 0x8e;
return 1;
}
if (sun_data->is_raid) {
sun_data->type = 0xfd;
return 1;
}
sun_data->type = 0x83;
if (fs_type) {
if (is_linux_swap (fs_type->name))
sun_data->type = 0x82;
else if (!strcmp (fs_type->name, "ufs"))
sun_data->type = 0x6;
}
return 1;
}
static int
sun_partition_set_flag (PedPartition* part, PedPartitionFlag flag, int state)
{
SunPartitionData* sun_data;
PED_ASSERT (part != NULL);
PED_ASSERT (part->disk_specific != NULL);
PED_ASSERT (ped_partition_is_flag_available (part, flag));
sun_data = part->disk_specific;
switch (flag) {
case PED_PARTITION_BOOT:
sun_data->is_boot = state;
if (state) {
sun_data->is_lvm = 0;
sun_data->is_raid = 0;
sun_data->is_root = 0;
}
return ped_partition_set_system (part, part->fs_type);
case PED_PARTITION_ROOT:
sun_data->is_root = state;
if (state) {
sun_data->is_boot = 0;
sun_data->is_lvm = 0;
sun_data->is_raid = 0;
}
return ped_partition_set_system (part, part->fs_type);
case PED_PARTITION_LVM:
sun_data->is_lvm = state;
if (state) {
sun_data->is_boot = 0;
sun_data->is_raid = 0;
sun_data->is_root = 0;
}
return ped_partition_set_system (part, part->fs_type);
case PED_PARTITION_RAID:
sun_data->is_raid = state;
if (state) {
sun_data->is_boot = 0;
sun_data->is_lvm = 0;
sun_data->is_root = 0;
}
return ped_partition_set_system (part, part->fs_type);
default:
return 0;
}
}
static int _GL_ATTRIBUTE_PURE
sun_partition_get_flag (const PedPartition* part, PedPartitionFlag flag)
{
SunPartitionData* sun_data;
PED_ASSERT (part != NULL);
PED_ASSERT (part->disk_specific != NULL);
sun_data = part->disk_specific;
switch (flag) {
case PED_PARTITION_BOOT:
return sun_data->is_boot;
case PED_PARTITION_ROOT:
return sun_data->is_root;
case PED_PARTITION_LVM:
return sun_data->is_lvm;
case PED_PARTITION_RAID:
return sun_data->is_raid;
default:
return 0;
}
}
static int
sun_partition_is_flag_available (const PedPartition* part,
PedPartitionFlag flag)
{
switch (flag) {
case PED_PARTITION_BOOT:
case PED_PARTITION_ROOT:
case PED_PARTITION_LVM:
case PED_PARTITION_RAID:
return 1;
default:
return 0;
}
}
static bool
sun_get_max_supported_partition_count (const PedDisk* disk, int *max_n)
{
*max_n = SUN_DISK_MAXPARTITIONS;
return true;
}
static int
sun_get_max_primary_partition_count (const PedDisk* disk)
{
return SUN_DISK_MAXPARTITIONS;
}
static PedAlignment*
sun_get_partition_alignment(const PedDisk *disk)
{
PedSector block =
disk->dev->hw_geom.sectors * disk->dev->hw_geom.heads;
return ped_alignment_new(0, block);
}
static PedConstraint*
_get_strict_constraint (PedDisk* disk)
{
PedDevice* dev = disk->dev;
PedAlignment start_align;
PedAlignment end_align;
PedGeometry max_geom;
SunDiskData* disk_data = disk->disk_specific;
PedSector block = dev->bios_geom.sectors * dev->bios_geom.heads;
if (!ped_alignment_init (&start_align, 0, block))
return NULL;
if (!ped_alignment_init (&end_align, -1, block))
return NULL;
if (!ped_geometry_init (&max_geom, dev, 0, disk_data->length))
return NULL;
return ped_constraint_new (&start_align, &end_align, &max_geom,
&max_geom, 1, dev->length);
}
static PedConstraint*
_get_lax_constraint (PedDisk* disk)
{
PedDevice* dev = disk->dev;
PedAlignment start_align;
PedGeometry max_geom;
SunDiskData* disk_data = disk->disk_specific;
PedSector block = dev->bios_geom.sectors * dev->bios_geom.heads;
if (!ped_alignment_init (&start_align, 0, block))
return NULL;
if (!ped_geometry_init (&max_geom, dev, 0, disk_data->length))
return NULL;
return ped_constraint_new (&start_align, ped_alignment_any, &max_geom,
&max_geom, 1, dev->length);
}
/* _get_strict_constraint() will align the partition to the end of the cylinder.
* This isn't required, but since partitions must start at the start of the
* cylinder, space between the end of a partition and the end of a cylinder
* is unusable, so there's no point wasting space!
* However, if they really insist (via constraint)... which they will
* if they're reading a weird table of the disk... then we allow the end to
* be anywhere, with _get_lax_constraint()
*/
static int
sun_partition_align (PedPartition* part, const PedConstraint* constraint)
{
PED_ASSERT (part != NULL);
if (_ped_partition_attempt_align (part, constraint,
_get_strict_constraint (part->disk)))
return 1;
if (_ped_partition_attempt_align (part, constraint,
_get_lax_constraint (part->disk)))
return 1;
#ifndef DISCOVER_ONLY
ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_CANCEL,
_("Unable to satisfy all constraints on the partition."));
#endif
return 0;
}
static int
sun_partition_enumerate (PedPartition* part)
{
int i;
PedPartition* p;
/* never change the partition numbers */
if (part->num != -1)
return 1;
for (i = 1; i <= SUN_DISK_MAXPARTITIONS; i++) {
/* skip the Whole Disk partition for now */
if (i == WHOLE_DISK_PART + 1)
continue;
p = ped_disk_get_partition (part->disk, i);
if (!p) {
part->num = i;
return 1;
}
}
#ifndef DISCOVER_ONLY
/* Ok, now allocate the Whole disk if it isn't already */
p = ped_disk_get_partition (part->disk, WHOLE_DISK_PART + 1);
if (!p) {
int j = ped_exception_throw (
PED_EXCEPTION_WARNING,
PED_EXCEPTION_IGNORE_CANCEL,
_("The Whole Disk partition is the only "
"available one left. Generally, it is not a "
"good idea to overwrite this partition with "
"a real one. Solaris may not be able to "
"boot without it, and SILO (the sparc boot "
"loader) appreciates it as well."));
if (j == PED_EXCEPTION_IGNORE) {
/* bad bad bad...you will suffer your own fate */
part->num = WHOLE_DISK_PART + 1;
return 1;
}
}
/* failed to allocate a number, this means we are full */
ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("Sun disk label is full."));
#endif
return 0;
}
static int
sun_alloc_metadata (PedDisk* disk)
{
PedPartition* new_part;
SunDiskData* disk_data;
PedConstraint* constraint_any;
PED_ASSERT (disk != NULL);
PED_ASSERT (disk->disk_specific != NULL);
PED_ASSERT (disk->dev != NULL);
constraint_any = ped_constraint_any (disk->dev);
/* Sun disk label does not need to allocate a sector. The disk
label is contained within the first 512 bytes, which should not
be overwritten by any boot loader or superblock. It is safe for
most partitions to start at sector 0. We do however, allocate
the space used by alt-cyl's, since we cannot use those. Put them
at the end of the disk. */
disk_data = disk->disk_specific;
if (disk->dev->length <= 0 ||
disk_data->length <= 0 ||
disk->dev->length == disk_data->length)
goto error;
new_part = ped_partition_new (disk, PED_PARTITION_METADATA, NULL,
disk_data->length, disk->dev->length - 1);
if (!new_part)
goto error;
if (!ped_disk_add_partition (disk, new_part, constraint_any)) {
ped_partition_destroy (new_part);
goto error;
}
ped_constraint_destroy (constraint_any);
return 1;
error:
ped_constraint_destroy (constraint_any);
return 0;
}
#include "pt-common.h"
PT_define_limit_functions (sun)
static PedDiskOps sun_disk_ops = {
clobber: NULL,
write: NULL_IF_DISCOVER_ONLY (sun_write),
get_partition_alignment: sun_get_partition_alignment,
partition_set_name: NULL,
partition_get_name: NULL,
PT_op_function_initializers (sun)
};
static PedDiskType sun_disk_type = {
next: NULL,
name: "sun",
ops: &sun_disk_ops,
features: 0
};
void
ped_disk_sun_init ()
{
PED_ASSERT (sizeof (SunRawLabel) == 512);
ped_disk_type_register (&sun_disk_type);
}
void
ped_disk_sun_done ()
{
ped_disk_type_unregister (&sun_disk_type);
}