static int sun_create_disklabel(struct fdisk_context *cxt)
{
unsigned int ndiv;
struct fdisk_sun_label *sun; /* libfdisk sun handler */
struct sun_disklabel *sunlabel; /* on disk data */
int rc = 0;
assert(cxt);
assert(cxt->label);
assert(fdisk_is_label(cxt, SUN));
/* map first sector to header */
rc = fdisk_init_firstsector_buffer(cxt, 0, 0);
if (rc)
return rc;
sun = (struct fdisk_sun_label *) cxt->label;
sun->header = (struct sun_disklabel *) cxt->firstsector;
sunlabel = sun->header;
cxt->label->nparts_max = SUN_MAXPARTITIONS;
sunlabel->magic = cpu_to_be16(SUN_LABEL_MAGIC);
sunlabel->vtoc.version = cpu_to_be32(SUN_VTOC_VERSION);
sunlabel->vtoc.sanity = cpu_to_be32(SUN_VTOC_SANITY);
sunlabel->vtoc.nparts = cpu_to_be16(SUN_MAXPARTITIONS);
#ifdef HDIO_GETGEO
if (cxt->geom.heads && cxt->geom.sectors) {
fdisk_sector_t llsectors;
if (blkdev_get_sectors(cxt->dev_fd, (unsigned long long *) &llsectors) == 0) {
int sec_fac = cxt->sector_size / 512;
fdisk_sector_t llcyls;
llcyls = llsectors / (cxt->geom.heads * cxt->geom.sectors * sec_fac);
cxt->geom.cylinders = llcyls;
if (cxt->geom.cylinders != llcyls)
cxt->geom.cylinders = ~0;
} else {
fdisk_warnx(cxt,
_("BLKGETSIZE ioctl failed on %s. "
"Using geometry cylinder value of %llu. "
"This value may be truncated for devices "
"> 33.8 GB."),
cxt->dev_path, cxt->geom.cylinders);
}
} else
#endif
ask_geom(cxt);
sunlabel->acyl = cpu_to_be16(0);
sunlabel->pcyl = cpu_to_be16(cxt->geom.cylinders);
sunlabel->rpm = cpu_to_be16(5400);
sunlabel->intrlv = cpu_to_be16(1);
sunlabel->apc = cpu_to_be16(0);
sunlabel->nhead = cpu_to_be16(cxt->geom.heads);
sunlabel->nsect = cpu_to_be16(cxt->geom.sectors);
sunlabel->ncyl = cpu_to_be16(cxt->geom.cylinders);
snprintf((char *) sunlabel->label_id, sizeof(sunlabel->label_id),
"Linux cyl %ju alt %u hd %u sec %ju",
(uintmax_t) cxt->geom.cylinders,
be16_to_cpu(sunlabel->acyl),
cxt->geom.heads,
(uintmax_t) cxt->geom.sectors);
if (cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors >= 150 * 2048) {
ndiv = cxt->geom.cylinders - (50 * 2048 / (cxt->geom.heads * cxt->geom.sectors)); /* 50M swap */
} else
ndiv = cxt->geom.cylinders * 2 / 3;
/* create the default layout only if no-script defined */
if (!cxt->script) {
set_partition(cxt, 0, 0, ndiv * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_LINUX_NATIVE);
set_partition(cxt, 1, ndiv * cxt->geom.heads * cxt->geom.sectors,
cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_LINUX_SWAP);
sunlabel->vtoc.infos[1].flags |= cpu_to_be16(SUN_FLAG_UNMNT);
set_partition(cxt, 2, 0,
cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_WHOLEDISK);
}
{
unsigned short *ush = (unsigned short *)sunlabel;
unsigned short csum = 0;
while(ush < (unsigned short *)(&sunlabel->csum))
csum ^= *ush++;
sunlabel->csum = csum;
}
fdisk_label_set_changed(cxt->label, 1);
cxt->label->nparts_cur = count_used_partitions(cxt);
fdisk_info(cxt, _("Created a new Sun disklabel."));
return 0;
}
static int sun_create_disklabel(struct fdisk_context *cxt)
{
struct hd_geometry geometry;
sector_t llsectors, llcyls;
unsigned int ndiv, sec_fac;
int res;
struct fdisk_sun_label *sun; /* libfdisk sun handler */
struct sun_disklabel *sunlabel; /* on disk data */
assert(cxt);
assert(cxt->label);
assert(fdisk_is_disklabel(cxt, SUN));
/* map first sector to header */
fdisk_zeroize_firstsector(cxt);
sun = (struct fdisk_sun_label *) cxt->label;
sun->header = (struct sun_disklabel *) cxt->firstsector;
sunlabel = sun->header;
cxt->label->nparts_max = SUN_MAXPARTITIONS;
sunlabel->magic = cpu_to_be16(SUN_LABEL_MAGIC);
sunlabel->vtoc.version = cpu_to_be32(SUN_VTOC_VERSION);
sunlabel->vtoc.sanity = cpu_to_be32(SUN_VTOC_SANITY);
sunlabel->vtoc.nparts = cpu_to_be16(SUN_MAXPARTITIONS);
res = blkdev_get_sectors(cxt->dev_fd, &llsectors);
sec_fac = cxt->sector_size / 512;
#ifdef HDIO_GETGEO
if (!ioctl(cxt->dev_fd, HDIO_GETGEO, &geometry)) {
cxt->geom.heads = geometry.heads;
cxt->geom.sectors = geometry.sectors;
if (res == 0) {
llcyls = llsectors / (cxt->geom.heads * cxt->geom.sectors * sec_fac);
cxt->geom.cylinders = llcyls;
if (cxt->geom.cylinders != llcyls)
cxt->geom.cylinders = ~0;
} else {
cxt->geom.cylinders = geometry.cylinders;
fdisk_warnx(cxt,
_("BLKGETSIZE ioctl failed on %s. "
"Using geometry cylinder value of %llu. "
"This value may be truncated for devices "
"> 33.8 GB."),
cxt->dev_path, cxt->geom.cylinders);
}
} else
#endif
ask_geom(cxt);
sunlabel->acyl = cpu_to_be16(0);
sunlabel->pcyl = cpu_to_be16(cxt->geom.cylinders);
sunlabel->rpm = cpu_to_be16(5400);
sunlabel->intrlv = cpu_to_be16(1);
sunlabel->apc = cpu_to_be16(0);
sunlabel->nhead = cpu_to_be16(cxt->geom.heads);
sunlabel->nsect = cpu_to_be16(cxt->geom.sectors);
sunlabel->ncyl = cpu_to_be16(cxt->geom.cylinders);
snprintf((char *) sunlabel->label_id, sizeof(sunlabel->label_id),
"Linux cyl %llu alt %u hd %u sec %llu",
cxt->geom.cylinders, be16_to_cpu(sunlabel->acyl),
cxt->geom.heads, cxt->geom.sectors);
if (cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors >= 150 * 2048) {
ndiv = cxt->geom.cylinders - (50 * 2048 / (cxt->geom.heads * cxt->geom.sectors)); /* 50M swap */
} else
ndiv = cxt->geom.cylinders * 2 / 3;
set_sun_partition(cxt, 0, 0, ndiv * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_LINUX_NATIVE);
set_sun_partition(cxt, 1, ndiv * cxt->geom.heads * cxt->geom.sectors,
cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_LINUX_SWAP);
sunlabel->vtoc.infos[1].flags |= cpu_to_be16(SUN_FLAG_UNMNT);
set_sun_partition(cxt, 2, 0,
cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors,
SUN_TAG_WHOLEDISK);
{
unsigned short *ush = (unsigned short *)sunlabel;
unsigned short csum = 0;
while(ush < (unsigned short *)(&sunlabel->csum))
csum ^= *ush++;
sunlabel->csum = csum;
}
fdisk_label_set_changed(cxt->label, 1);
cxt->label->nparts_cur = count_used_partitions(cxt);
fdisk_sinfo(cxt, FDISK_INFO_SUCCESS,
_("Created a new Sun disklabel."));
return 0;
}
