/**
* fdisk_get_unit:
* @cxt: context
* @n: FDISK_PLURAL or FDISK_SINGULAR
*
* Returns: unit name.
*/
const char *fdisk_get_unit(struct fdisk_context *cxt, int n)
{
assert(cxt);
if (fdisk_use_cylinders(cxt))
return P_("cylinder", "cylinders", n);
return P_("sector", "sectors", n);
}
/**
* fdisk_get_units_per_sector:
* @cxt: context
*
* This is necessary only for brain dead situations when we use "cylinders";
*
* Returns: number of "units" per sector, default is 1 if display unit is sector.
*/
unsigned int fdisk_get_units_per_sector(struct fdisk_context *cxt)
{
assert(cxt);
if (fdisk_use_cylinders(cxt)) {
assert(cxt->geom.heads);
return cxt->geom.heads * cxt->geom.sectors;
}
return 1;
}
/**
* fdisk_label_get_fields_ids
* @lb: label (or NULL for the current label)
* @ids: returns allocated array with FDISK_FIELD_* IDs
* @nids: returns number of items in fields
*
* This function returns the default fields for the label.
*
* Note that the set of the default fields depends on fdisk_enable_details()
* function. If the details are enabled then this function usually returns more
* fields.
*
* Returns 0 on success, otherwise, a corresponding error.
*/
int fdisk_label_get_fields_ids(
struct fdisk_label *lb,
struct fdisk_context *cxt,
int **ids, size_t *nids)
{
size_t i, n;
int *c;
assert(cxt);
if (!lb)
lb = cxt->label;
if (!lb)
return -EINVAL;
if (!lb->fields || !lb->nfields)
return -ENOSYS;
c = calloc(lb->nfields, sizeof(int));
if (!c)
return -ENOMEM;
for (n = 0, i = 0; i < lb->nfields; i++) {
int id = lb->fields[i].id;
if ((fdisk_is_details(cxt) &&
(lb->fields[i].flags & FDISK_FIELDFL_EYECANDY))
|| (!fdisk_is_details(cxt) &&
(lb->fields[i].flags & FDISK_FIELDFL_DETAIL))
|| (id == FDISK_FIELD_SECTORS &&
fdisk_use_cylinders(cxt))
|| (id == FDISK_FIELD_CYLINDERS &&
!fdisk_use_cylinders(cxt)))
continue;
c[n++] = id;
}
if (ids)
*ids = c;
else
free(c);
if (nids)
*nids = n;
return 0;
}
void list_disk_geometry(struct fdisk_context *cxt)
{
char *id = NULL;
struct fdisk_label *lb = fdisk_get_label(cxt, NULL);
uint64_t bytes = fdisk_get_nsectors(cxt) * fdisk_get_sector_size(cxt);
char *strsz = size_to_human_string(SIZE_SUFFIX_SPACE
| SIZE_SUFFIX_3LETTER, bytes);
color_scheme_enable("header", UL_COLOR_BOLD);
fdisk_info(cxt, _("Disk %s: %s, %ju bytes, %ju sectors"),
fdisk_get_devname(cxt), strsz,
bytes, (uintmax_t) fdisk_get_nsectors(cxt));
color_disable();
free(strsz);
if (lb && (fdisk_label_require_geometry(lb) || fdisk_use_cylinders(cxt)))
fdisk_info(cxt, _("Geometry: %d heads, %llu sectors/track, %llu cylinders"),
fdisk_get_geom_heads(cxt),
fdisk_get_geom_sectors(cxt),
fdisk_get_geom_cylinders(cxt));
fdisk_info(cxt, _("Units: %s of %d * %ld = %ld bytes"),
fdisk_get_unit(cxt, FDISK_PLURAL),
fdisk_get_units_per_sector(cxt),
fdisk_get_sector_size(cxt),
fdisk_get_units_per_sector(cxt) * fdisk_get_sector_size(cxt));
fdisk_info(cxt, _("Sector size (logical/physical): %lu bytes / %lu bytes"),
fdisk_get_sector_size(cxt),
fdisk_get_physector_size(cxt));
fdisk_info(cxt, _("I/O size (minimum/optimal): %lu bytes / %lu bytes"),
fdisk_get_minimal_iosize(cxt),
fdisk_get_optimal_iosize(cxt));
if (fdisk_get_alignment_offset(cxt))
fdisk_info(cxt, _("Alignment offset: %lu bytes"),
fdisk_get_alignment_offset(cxt));
if (fdisk_has_label(cxt))
fdisk_info(cxt, _("Disklabel type: %s"),
fdisk_label_get_name(lb));
if (fdisk_get_disklabel_id(cxt, &id) == 0 && id)
fdisk_info(cxt, _("Disk identifier: %s"), id);
}
static int sun_add_partition(
struct fdisk_context *cxt,
struct fdisk_partition *pa,
size_t *partno)
{
struct sun_disklabel *sunlabel = self_disklabel(cxt);
uint32_t starts[SUN_MAXPARTITIONS], lens[SUN_MAXPARTITIONS];
struct sun_partition *part;
struct sun_info *info;
uint32_t start, stop, stop2;
int whole_disk = 0;
int sys = pa && pa->type ? pa->type->code : SUN_TAG_LINUX_NATIVE;
int rc;
size_t n;
char mesg[256];
size_t i;
unsigned int first, last;
rc = fdisk_partition_next_partno(pa, cxt, &n);
if (rc)
return rc;
part = &sunlabel->partitions[n];
info = &sunlabel->vtoc.infos[n];
if (part->num_sectors && be16_to_cpu(info->id) != SUN_TAG_UNASSIGNED) {
fdisk_info(cxt, _("Partition %zu is already defined. Delete "
"it before re-adding it."), n + 1);
return -EINVAL;
}
fetch_sun(cxt, starts, lens, &start, &stop);
if (stop <= start) {
if (n == 2)
whole_disk = 1;
else {
fdisk_info(cxt, _("Other partitions already cover the "
"whole disk. Delete some/shrink them before retry."));
return -EINVAL;
}
}
if (pa && pa->start_follow_default)
first = start;
else if (pa && fdisk_partition_has_start(pa)) {
first = pa->start;
if (!whole_disk && !is_free_sector(cxt, first, starts, lens))
return -ERANGE;
} else {
struct fdisk_ask *ask;
snprintf(mesg, sizeof(mesg), _("First %s"),
fdisk_get_unit(cxt, FDISK_SINGULAR));
for (;;) {
ask = fdisk_new_ask();
if (!ask)
return -ENOMEM;
fdisk_ask_set_query(ask, mesg);
fdisk_ask_set_type(ask, FDISK_ASKTYPE_NUMBER);
if (whole_disk) {
fdisk_ask_number_set_low(ask, 0); /* minimal */
fdisk_ask_number_set_default(ask, 0); /* default */
fdisk_ask_number_set_high(ask, 0); /* maximal */
} else {
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, start)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, start)); /* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, stop)); /* maximal */
}
rc = fdisk_do_ask(cxt, ask);
first = fdisk_ask_number_get_result(ask);
fdisk_unref_ask(ask);
if (rc)
return rc;
if (fdisk_use_cylinders(cxt))
first *= fdisk_get_units_per_sector(cxt);
/* ewt asks to add: "don't start a partition at cyl 0"
However, [email protected] writes:
"In addition to having a Sun partition table, to be able to
boot from the disc, the first partition, /dev/sdX1, must
start at cylinder 0. This means that /dev/sdX1 contains
the partition table and the boot block, as these are the
first two sectors of the disc. Therefore you must be
careful what you use /dev/sdX1 for. In particular, you must
not use a partition starting at cylinder 0 for Linux swap,
as that would overwrite the partition table and the boot
block. You may, however, use such a partition for a UFS
or EXT2 file system, as these file systems leave the first
1024 bytes undisturbed. */
/* On the other hand, one should not use partitions
starting at block 0 in an md, or the label will
be trashed. */
if (!is_free_sector(cxt, first, starts, lens) && !whole_disk) {
if (n == 2 && !first) {
whole_disk = 1;
break;
}
fdisk_warnx(cxt, _("Sector %d is already allocated"), first);
} else
break;
}
}
if (n == 2 && first != 0)
fdisk_warnx(cxt, _("It is highly recommended that the "
"third partition covers the whole disk "
"and is of type `Whole disk'"));
if (!fdisk_use_cylinders(cxt)) {
/* Starting sector has to be properly aligned */
int cs = cxt->geom.heads * cxt->geom.sectors;
int x = first % cs;
if (x) {
fdisk_info(cxt, _("Aligning the first sector from %u to %u "
"to be on cylinder boundary."),
first, first + cs - x);
first += cs - x;
}
}
stop = cxt->geom.cylinders * cxt->geom.heads * cxt->geom.sectors; /* ancient */
stop2 = stop;
for (i = 0; i < cxt->label->nparts_max; i++) {
if (starts[i] > first && starts[i] < stop)
stop = starts[i];
}
/* last */
if (pa && pa->end_follow_default)
last = whole_disk || (n == 2 && !first) ? stop2 : stop;
else if (pa && fdisk_partition_has_size(pa)) {
last = first + pa->size - 1ULL;
if (!whole_disk && last > stop)
return -ERANGE;
} else {
struct fdisk_ask *ask = fdisk_new_ask();
if (!ask)
return -ENOMEM;
snprintf(mesg, sizeof(mesg),
_("Last %s or +%s or +size{K,M,G,T,P}"),
fdisk_get_unit(cxt, FDISK_SINGULAR),
fdisk_get_unit(cxt, FDISK_PLURAL));
fdisk_ask_set_query(ask, mesg);
fdisk_ask_set_type(ask, FDISK_ASKTYPE_OFFSET);
if (whole_disk) {
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, stop2)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, stop2)); /* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, stop2)); /* maximal */
fdisk_ask_number_set_base(ask, 0);
} else if (n == 2 && !first) {
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, first)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, stop2)); /* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, stop2)); /* maximal */
fdisk_ask_number_set_base(ask, fdisk_scround(cxt, first));
} else {
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, first)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, stop)); /* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, stop)); /* maximal */
fdisk_ask_number_set_base(ask, fdisk_scround(cxt, first));
}
if (fdisk_use_cylinders(cxt))
fdisk_ask_number_set_unit(ask,
cxt->sector_size *
fdisk_get_units_per_sector(cxt));
else
fdisk_ask_number_set_unit(ask, cxt->sector_size);
rc = fdisk_do_ask(cxt, ask);
last = fdisk_ask_number_get_result(ask);
fdisk_unref_ask(ask);
if (rc)
return rc;
if (fdisk_use_cylinders(cxt))
last *= fdisk_get_units_per_sector(cxt);
}
if (n == 2 && !first) {
if (last >= stop2) {
whole_disk = 1;
last = stop2;
} else if (last > stop) {
fdisk_warnx(cxt,
_("You haven't covered the whole disk with the 3rd partition, but your value\n"
"%lu %s covers some other partition. Your entry has been changed\n"
"to %lu %s"),
(unsigned long) fdisk_scround(cxt, last), fdisk_get_unit(cxt, FDISK_SINGULAR),
(unsigned long) fdisk_scround(cxt, stop), fdisk_get_unit(cxt, FDISK_SINGULAR));
last = stop;
}
} else if (!whole_disk && last > stop)
last = stop;
if (whole_disk)
sys = SUN_TAG_WHOLEDISK;
set_partition(cxt, n, first, last, sys);
cxt->label->nparts_cur = count_used_partitions(cxt);
if (partno)
*partno = n;
return 0;
}
static int sgi_add_partition(struct fdisk_context *cxt,
struct fdisk_partition *pa,
size_t *partno)
{
struct fdisk_sgi_label *sgi;
char mesg[256];
unsigned int first = 0, last = 0;
struct fdisk_ask *ask;
int sys = pa && pa->type ? pa->type->code : SGI_TYPE_XFS;
int rc;
size_t n;
assert(cxt);
assert(cxt->label);
assert(fdisk_is_label(cxt, SGI));
rc = fdisk_partition_next_partno(pa, cxt, &n);
if (rc)
return rc;
if (n == 10)
sys = SGI_TYPE_ENTIRE_DISK;
else if (n == 8)
sys = 0;
sgi = self_label(cxt);
if (sgi_get_num_sectors(cxt, n)) {
fdisk_warnx(cxt, _("Partition %zu is already defined. "
"Delete it before re-adding it."), n + 1);
return -EINVAL;
}
if (!cxt->script && sgi_entire(cxt) == -1 && sys != SGI_TYPE_ENTIRE_DISK) {
fdisk_info(cxt, _("Attempting to generate entire disk entry automatically."));
sgi_set_entire(cxt);
sgi_set_volhdr(cxt);
}
if (sgi_gaps(cxt) == 0 && sys != SGI_TYPE_ENTIRE_DISK) {
fdisk_warnx(cxt, _("The entire disk is already covered with partitions."));
return -EINVAL;
}
if (sgi_gaps(cxt) < 0) {
fdisk_warnx(cxt, _("You got a partition overlap on the disk. Fix it first!"));
return -EINVAL;
}
if (sys == SGI_TYPE_ENTIRE_DISK) {
first = 0;
last = sgi_get_lastblock(cxt);
} else {
first = sgi->freelist[0].first;
last = sgi->freelist[0].last;
}
/* first sector */
if (pa && pa->start_follow_default)
;
else if (pa && fdisk_partition_has_start(pa)) {
first = pa->start;
last = is_in_freelist(cxt, first);
if (sys != SGI_TYPE_ENTIRE_DISK && !last)
return -ERANGE;
} else {
snprintf(mesg, sizeof(mesg), _("First %s"),
fdisk_get_unit(cxt, FDISK_SINGULAR));
ask = fdisk_new_ask();
if (!ask)
return -ENOMEM;
fdisk_ask_set_query(ask, mesg);
fdisk_ask_set_type(ask, FDISK_ASKTYPE_NUMBER);
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, first)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, first)); /* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, last) - 1); /* maximal */
rc = fdisk_do_ask(cxt, ask);
first = fdisk_ask_number_get_result(ask);
fdisk_unref_ask(ask);
if (rc)
return rc;
if (fdisk_use_cylinders(cxt))
first *= fdisk_get_units_per_sector(cxt);
}
if (first && sys == SGI_TYPE_ENTIRE_DISK)
fdisk_info(cxt, _("It is highly recommended that the "
"eleventh partition covers the entire "
"disk and is of type 'SGI volume'."));
if (!last)
last = is_in_freelist(cxt, first);
/* last sector */
if (pa && pa->end_follow_default)
last -= 1ULL;
else if (pa && fdisk_partition_has_size(pa)) {
if (first + pa->size - 1ULL > last)
return -ERANGE;
last = first + pa->size - 1ULL;
} else {
snprintf(mesg, sizeof(mesg),
_("Last %s or +%s or +size{K,M,G,T,P}"),
fdisk_get_unit(cxt, FDISK_SINGULAR),
fdisk_get_unit(cxt, FDISK_PLURAL));
ask = fdisk_new_ask();
if (!ask)
return -ENOMEM;
fdisk_ask_set_query(ask, mesg);
fdisk_ask_set_type(ask, FDISK_ASKTYPE_OFFSET);
fdisk_ask_number_set_low(ask, fdisk_scround(cxt, first)); /* minimal */
fdisk_ask_number_set_default(ask, fdisk_scround(cxt, last) - 1);/* default */
fdisk_ask_number_set_high(ask, fdisk_scround(cxt, last) - 1);/* maximal */
fdisk_ask_number_set_base(ask, fdisk_scround(cxt, first));
if (fdisk_use_cylinders(cxt))
fdisk_ask_number_set_unit(ask,
cxt->sector_size *
fdisk_get_units_per_sector(cxt));
else
fdisk_ask_number_set_unit(ask,cxt->sector_size);
rc = fdisk_do_ask(cxt, ask);
last = fdisk_ask_number_get_result(ask) + 1;
fdisk_unref_ask(ask);
if (rc)
return rc;
if (fdisk_use_cylinders(cxt))
last *= fdisk_get_units_per_sector(cxt);
}
if (sys == SGI_TYPE_ENTIRE_DISK
&& (first != 0 || last != sgi_get_lastblock(cxt)))
fdisk_info(cxt, _("It is highly recommended that the "
"eleventh partition covers the entire "
"disk and is of type 'SGI volume'."));
set_partition(cxt, n, first, last - first, sys);
cxt->label->nparts_cur = count_used_partitions(cxt);
if (partno)
*partno = n;
return 0;
}
