static int
check_partition_consistency (const PedDevice* dev,
const PC98RawPartition* raw_part)
{
if (raw_part->ipl_sect >= dev->hw_geom.sectors
|| raw_part->sector >= dev->hw_geom.sectors
|| raw_part->end_sector >= dev->hw_geom.sectors
|| raw_part->ipl_head >= dev->hw_geom.heads
|| raw_part->head >= dev->hw_geom.heads
|| raw_part->end_head >= dev->hw_geom.heads
|| PED_LE16_TO_CPU(raw_part->ipl_cyl) >= dev->hw_geom.cylinders
|| PED_LE16_TO_CPU(raw_part->cyl) >= dev->hw_geom.cylinders
|| PED_LE16_TO_CPU(raw_part->end_cyl) >= dev->hw_geom.cylinders
|| PED_LE16_TO_CPU(raw_part->cyl)
> PED_LE16_TO_CPU(raw_part->end_cyl)
#if 0
|| !chs_to_sector(dev, PED_LE16_TO_CPU(raw_part->ipl_cyl),
raw_part->ipl_head, raw_part->ipl_sect)
|| !chs_to_sector(dev, PED_LE16_TO_CPU(raw_part->cyl),
raw_part->head, raw_part->sector)
|| !chs_to_sector(dev, PED_LE16_TO_CPU(raw_part->end_cyl),
raw_part->end_head, raw_part->end_sector)
#endif
|| PED_LE16_TO_CPU(raw_part->end_cyl)
< PED_LE16_TO_CPU(raw_part->cyl))
return 0;
return 1;
}
static PedSector _GL_ATTRIBUTE_PURE
legacy_end (const PedDisk* disk, const PC98RawPartition* raw_part)
{
PED_ASSERT (disk != NULL);
PED_ASSERT (raw_part != NULL);
if (raw_part->end_head == 0 && raw_part->end_sector == 0) {
return chs_to_sector (disk->dev,
PED_LE16_TO_CPU(raw_part->end_cyl),
disk->dev->hw_geom.heads - 1,
disk->dev->hw_geom.sectors - 1);
} else {
return chs_to_sector (disk->dev,
PED_LE16_TO_CPU(raw_part->end_cyl),
raw_part->end_head,
raw_part->end_sector);
}
}
static PedSector _GL_ATTRIBUTE_PURE
legacy_start (const PedDisk* disk, const PC98RawPartition* raw_part)
{
PED_ASSERT (disk != NULL);
PED_ASSERT (raw_part != NULL);
return chs_to_sector (disk->dev, PED_LE16_TO_CPU(raw_part->cyl),
raw_part->head, raw_part->sector);
}
static int
read_table (PedDisk* disk)
{
int i;
PC98RawTable table;
PedConstraint* constraint_any;
PED_ASSERT (disk != NULL);
PED_ASSERT (disk->dev != NULL);
constraint_any = ped_constraint_any (disk->dev);
if (!ped_device_read (disk->dev, (void*) &table, 0, 2))
goto error;
if (!pc98_check_magic(&table)) {
if (ped_exception_throw (
PED_EXCEPTION_ERROR, PED_EXCEPTION_IGNORE_CANCEL,
_("Invalid partition table on %s."),
disk->dev->path))
goto error;
}
for (i = 0; i < MAX_PART_COUNT; i++) {
PC98RawPartition* raw_part;
PedPartition* part;
PC98PartitionData* pc98_data;
PedSector part_start;
PedSector part_end;
raw_part = &table.partitions [i];
if (is_unused_partition(raw_part))
continue;
part_start = legacy_start (disk, raw_part);
part_end = legacy_end (disk, raw_part);
part = ped_partition_new (disk, PED_PARTITION_NORMAL,
NULL, part_start, part_end);
if (!part)
goto error;
pc98_data = part->disk_specific;
PED_ASSERT (pc98_data != NULL);
pc98_data->system = (raw_part->mid << 8) | raw_part->sid;
pc98_data->boot = GET_BIT(raw_part->mid, 7);
pc98_data->hidden = !GET_BIT(raw_part->sid, 7);
ped_partition_set_name (part, raw_part->name);
pc98_data->ipl_sector = chs_to_sector (
disk->dev,
PED_LE16_TO_CPU(raw_part->ipl_cyl),
raw_part->ipl_head,
raw_part->ipl_sect);
/* hack */
if (pc98_data->ipl_sector == part->geom.start)
pc98_data->ipl_sector = 0;
part->num = i + 1;
if (!ped_disk_add_partition (disk, part, constraint_any))
goto error;
if (part->geom.start != part_start
|| part->geom.end != part_end) {
ped_exception_throw (
PED_EXCEPTION_NO_FEATURE,
PED_EXCEPTION_CANCEL,
_("Partition %d isn't aligned to cylinder "
"boundaries. This is still unsupported."),
part->num);
goto error;
}
part->fs_type = ped_file_system_probe (&part->geom);
}
ped_constraint_destroy (constraint_any);
return 1;
error:
ped_disk_delete_all (disk);
ped_constraint_destroy (constraint_any);
return 0;
}