static struct grub_archelp_data *
grub_cbfs_mount (grub_disk_t disk)
{
struct cbfs_file hd;
struct grub_archelp_data *data = NULL;
grub_uint32_t ptr;
grub_off_t header_off;
struct cbfs_header head;
if (grub_disk_get_size (disk) == GRUB_DISK_SIZE_UNKNOWN)
goto fail;
if (grub_disk_read (disk, grub_disk_get_size (disk) - 1,
GRUB_DISK_SECTOR_SIZE - sizeof (ptr),
sizeof (ptr), &ptr))
goto fail;
ptr = grub_cpu_to_le32 (ptr);
header_off = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
+ (grub_int32_t) ptr;
if (grub_disk_read (disk, 0, header_off,
sizeof (head), &head))
goto fail;
if (!validate_head (&head))
goto fail;
data = (struct grub_archelp_data *) grub_zalloc (sizeof (*data));
if (!data)
goto fail;
data->cbfs_start = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
- (grub_be_to_cpu32 (head.romsize) - grub_be_to_cpu32 (head.offset));
data->cbfs_end = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
- grub_be_to_cpu32 (head.bootblocksize);
data->cbfs_align = grub_be_to_cpu32 (head.align);
if (data->cbfs_start >= (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS))
goto fail;
if (data->cbfs_end > (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS))
data->cbfs_end = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS);
data->next_hofs = data->cbfs_start;
if (grub_disk_read (disk, 0, data->cbfs_start, sizeof (hd), &hd))
goto fail;
if (grub_memcmp (hd.magic, CBFS_FILE_MAGIC, sizeof (CBFS_FILE_MAGIC) - 1))
goto fail;
data->disk = disk;
return data;
fail:
grub_free (data);
grub_error (GRUB_ERR_BAD_FS, "not a cbfs filesystem");
return 0;
}
static grub_err_t
grub_dmraid_nv_detect (grub_disk_t disk, struct grub_raid_array *array)
{
grub_disk_addr_t sector;
struct grub_nv_super sb;
if (disk->partition)
return grub_error (GRUB_ERR_OUT_OF_RANGE, "skip partition");
sector = grub_disk_get_size (disk) - 2;
if (grub_disk_read (disk, sector, 0, sizeof (sb), &sb))
return grub_errno;
if (grub_memcmp (sb.vendor, NV_ID_STRING, 6))
return grub_error (GRUB_ERR_OUT_OF_RANGE, "not raid");
if (sb.version != NV_VERSION)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"unknown version: %d.%d", sb.version);
switch (sb.array.raid_level)
{
case NV_LEVEL_0:
array->level = 0;
array->disk_size = sb.capacity / sb.array.total_volumes;
break;
case NV_LEVEL_1:
array->level = 1;
array->disk_size = sb.capacity;
break;
case NV_LEVEL_5:
array->level = 5;
array->layout = GRUB_RAID_LAYOUT_LEFT_ASYMMETRIC;
array->disk_size = sb.capacity / (sb.array.total_volumes - 1);
break;
default:
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"unsupported RAID level: %d", sb.array.raid_level);
}
array->number = 0;
array->total_devs = sb.array.total_volumes;
array->chunk_size = sb.array.stripe_block_size;
array->disk_offset = 0;
array->index = sb.unit_number;
array->uuid_len = sizeof (sb.array.signature);
array->uuid = grub_malloc (sizeof (sb.array.signature));
if (! array->uuid)
return grub_errno;
grub_memcpy (array->uuid, (char *) &sb.array.signature,
sizeof (sb.array.signature));
return 0;
}
/* Helper for scan_disk. */
static int
scan_disk_partition_iter (grub_disk_t disk, grub_partition_t p, void *data)
{
const char *name = data;
struct grub_diskfilter_vg *arr;
grub_disk_addr_t start_sector;
struct grub_diskfilter_pv_id id;
grub_diskfilter_t diskfilter;
grub_dprintf ("diskfilter", "Scanning for DISKFILTER devices on disk %s\n",
name);
#ifdef GRUB_UTIL
grub_util_info ("Scanning for DISKFILTER devices on disk %s", name);
#endif
disk->partition = p;
for (arr = array_list; arr != NULL; arr = arr->next)
{
struct grub_diskfilter_pv *m;
for (m = arr->pvs; m; m = m->next)
if (m->disk && m->disk->id == disk->id
&& m->disk->dev->id == disk->dev->id
&& m->part_start == grub_partition_get_start (disk->partition)
&& m->part_size == grub_disk_get_size (disk))
return 0;
}
for (diskfilter = grub_diskfilter_list; diskfilter; diskfilter = diskfilter->next)
{
#ifdef GRUB_UTIL
grub_util_info ("Scanning for %s devices on disk %s",
diskfilter->name, name);
#endif
id.uuid = 0;
id.uuidlen = 0;
arr = diskfilter->detect (disk, &id, &start_sector);
if (arr &&
(! insert_array (disk, &id, arr, start_sector, diskfilter)))
{
if (id.uuidlen)
grub_free (id.uuid);
return 0;
}
if (arr && id.uuidlen)
grub_free (id.uuid);
/* This error usually means it's not diskfilter, no need to display
it. */
if (grub_errno != GRUB_ERR_OUT_OF_RANGE)
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
return 0;
}
int
grub_util_is_ldm (grub_disk_t disk)
{
int i;
int has_ldm = msdos_has_ldm_partition (disk);
for (i = 0; i < 3; i++)
{
grub_disk_addr_t sector = LDM_LABEL_SECTOR;
grub_err_t err;
struct grub_ldm_label label;
switch (i)
{
case 0:
if (!has_ldm)
continue;
sector = LDM_LABEL_SECTOR;
break;
case 1:
/* LDM is never inside a partition. */
if (!has_ldm || disk->partition)
continue;
sector = grub_disk_get_size (disk);
if (sector == GRUB_DISK_SIZE_UNKNOWN)
continue;
sector--;
break;
/* FIXME: try the third copy. */
case 2:
sector = gpt_ldm_sector (disk);
if (!sector)
continue;
break;
}
err = grub_disk_read (disk, sector, 0, sizeof(label), &label);
if (err)
{
grub_errno = GRUB_ERR_NONE;
return 0;
}
/* This check is more relaxed on purpose. */
if (grub_memcmp (label.magic, LDM_MAGIC, sizeof (label.magic)) == 0)
return 1;
}
return 0;
}
static void
probe (const char *path, char **device_names, char delim)
{
char **drives_names = NULL;
char **curdev, **curdrive;
char *grub_path = NULL;
int ndev = 0;
if (path != NULL)
{
grub_path = canonicalize_file_name (path);
if (! grub_path)
grub_util_error (_("failed to get canonical path of `%s'"), path);
device_names = grub_guess_root_devices (grub_path);
free (grub_path);
}
if (! device_names)
grub_util_error (_("cannot find a device for %s (is /dev mounted?)"), path);
if (print == PRINT_DEVICE)
{
for (curdev = device_names; *curdev; curdev++)
{
printf ("%s", *curdev);
putchar (delim);
}
return;
}
if (print == PRINT_DISK)
{
for (curdev = device_names; *curdev; curdev++)
{
char *disk;
disk = grub_util_get_os_disk (*curdev);
if (!disk)
{
grub_print_error ();
continue;
}
printf ("%s", disk);
putchar (delim);
}
return;
}
for (curdev = device_names; *curdev; curdev++)
{
grub_util_pull_device (*curdev);
ndev++;
}
drives_names = xmalloc (sizeof (drives_names[0]) * (ndev + 1));
for (curdev = device_names, curdrive = drives_names; *curdev; curdev++,
curdrive++)
{
*curdrive = grub_util_get_grub_dev (*curdev);
if (! *curdrive)
grub_util_error (_("cannot find a GRUB drive for %s. Check your device.map"),
*curdev);
}
*curdrive = 0;
if (print == PRINT_DRIVE)
{
for (curdrive = drives_names; *curdrive; curdrive++)
{
printf ("(%s)", *curdrive);
putchar (delim);
}
goto end;
}
if (print == PRINT_ZERO_CHECK)
{
for (curdev = drives_names; *curdev; curdev++)
{
grub_device_t dev = NULL;
grub_uint32_t buffer[32768];
grub_disk_addr_t addr;
grub_disk_addr_t dsize;
grub_util_info ("opening %s", *curdev);
dev = grub_device_open (*curdev);
if (! dev || !dev->disk)
grub_util_error ("%s", grub_errmsg);
dsize = grub_disk_get_size (dev->disk);
for (addr = 0; addr < dsize;
addr += sizeof (buffer) / GRUB_DISK_SECTOR_SIZE)
{
grub_size_t sz = sizeof (buffer);
grub_uint32_t *ptr;
if (sizeof (buffer) / GRUB_DISK_SECTOR_SIZE > dsize - addr)
sz = (dsize - addr) * GRUB_DISK_SECTOR_SIZE;
grub_disk_read (dev->disk, addr, 0, sz, buffer);
for (ptr = buffer; ptr < buffer + sz / sizeof (*buffer); ptr++)
if (*ptr)
{
grub_printf ("false\n");
grub_device_close (dev);
goto end;
}
}
grub_device_close (dev);
}
grub_printf ("true\n");
}
if (print == PRINT_FS || print == PRINT_FS_UUID
|| print == PRINT_FS_LABEL)
{
grub_device_t dev = NULL;
grub_fs_t fs;
grub_util_info ("opening %s", drives_names[0]);
dev = grub_device_open (drives_names[0]);
if (! dev)
grub_util_error ("%s", grub_errmsg);
fs = grub_fs_probe (dev);
if (! fs)
grub_util_error ("%s", grub_errmsg);
if (print == PRINT_FS)
{
printf ("%s", fs->name);
putchar (delim);
}
else if (print == PRINT_FS_UUID)
{
char *uuid;
if (! fs->uuid)
grub_util_error (_("%s does not support UUIDs"), fs->name);
if (fs->uuid (dev, &uuid) != GRUB_ERR_NONE)
grub_util_error ("%s", grub_errmsg);
printf ("%s", uuid);
putchar (delim);
}
else if (print == PRINT_FS_LABEL)
{
char *label;
if (! fs->label)
grub_util_error (_("filesystem `%s' does not support labels"),
fs->name);
if (fs->label (dev, &label) != GRUB_ERR_NONE)
grub_util_error ("%s", grub_errmsg);
printf ("%s", label);
putchar (delim);
}
grub_device_close (dev);
goto end;
}
for (curdrive = drives_names, curdev = device_names; *curdrive;
curdrive++, curdev++)
{
grub_device_t dev = NULL;
grub_util_info ("opening %s", *curdrive);
dev = grub_device_open (*curdrive);
if (! dev)
grub_util_error ("%s", grub_errmsg);
if (print == PRINT_HINT_STR)
{
const char *osdev = grub_util_biosdisk_get_osdev (dev->disk);
const char *ofpath = osdev ? grub_util_devname_to_ofpath (osdev) : 0;
char *biosname, *bare, *efi;
const char *map;
if (ofpath)
{
char *tmp = xmalloc (strlen (ofpath) + sizeof ("ieee1275/"));
char *p;
p = grub_stpcpy (tmp, "ieee1275/");
strcpy (p, ofpath);
printf ("--hint-ieee1275='");
print_full_name (tmp, dev);
printf ("' ");
free (tmp);
}
biosname = guess_bios_drive (*curdev);
if (biosname)
{
printf ("--hint-bios=");
print_full_name (biosname, dev);
printf (" ");
}
free (biosname);
efi = guess_efi_drive (*curdev);
if (efi)
{
printf ("--hint-efi=");
print_full_name (efi, dev);
printf (" ");
}
free (efi);
bare = guess_baremetal_drive (*curdev);
if (bare)
{
printf ("--hint-baremetal=");
print_full_name (bare, dev);
printf (" ");
}
free (bare);
/* FIXME: Add ARC hint. */
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
printf ("--hint='");
print_full_name (map, dev);
printf ("' ");
}
if (curdrive[1])
printf (" ");
else
printf ("\n");
grub_device_close (dev);
continue;
}
if ((print == PRINT_COMPATIBILITY_HINT || print == PRINT_BIOS_HINT
|| print == PRINT_IEEE1275_HINT || print == PRINT_BAREMETAL_HINT
|| print == PRINT_EFI_HINT || print == PRINT_ARC_HINT)
&& dev->disk->dev->id != GRUB_DISK_DEVICE_HOSTDISK_ID)
{
print_full_name (dev->disk->name, dev);
putchar (delim);
continue;
}
if (print == PRINT_COMPATIBILITY_HINT)
{
const char *map;
char *biosname;
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
print_full_name (map, dev);
putchar (delim);
grub_device_close (dev);
/* Compatibility hint is one device only. */
break;
}
biosname = guess_bios_drive (*curdev);
if (biosname)
{
print_full_name (biosname, dev);
putchar (delim);
}
free (biosname);
grub_device_close (dev);
/* Compatibility hint is one device only. */
if (biosname)
break;
continue;
}
if (print == PRINT_BIOS_HINT)
{
char *biosname;
biosname = guess_bios_drive (*curdev);
if (biosname)
{
print_full_name (biosname, dev);
putchar (delim);
}
free (biosname);
grub_device_close (dev);
continue;
}
if (print == PRINT_IEEE1275_HINT)
{
const char *osdev = grub_util_biosdisk_get_osdev (dev->disk);
const char *ofpath = grub_util_devname_to_ofpath (osdev);
const char *map;
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
print_full_name (map, dev);
putchar (delim);
}
if (ofpath)
{
char *tmp = xmalloc (strlen (ofpath) + sizeof ("ieee1275/"));
char *p;
p = grub_stpcpy (tmp, "ieee1275/");
strcpy (p, ofpath);
print_full_name (tmp, dev);
free (tmp);
putchar (delim);
}
grub_device_close (dev);
continue;
}
if (print == PRINT_EFI_HINT)
{
char *biosname;
const char *map;
biosname = guess_efi_drive (*curdev);
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
print_full_name (map, dev);
putchar (delim);
}
if (biosname)
{
print_full_name (biosname, dev);
putchar (delim);
}
free (biosname);
grub_device_close (dev);
continue;
}
if (print == PRINT_BAREMETAL_HINT)
{
char *biosname;
const char *map;
biosname = guess_baremetal_drive (*curdev);
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
print_full_name (map, dev);
putchar (delim);
}
if (biosname)
{
print_full_name (biosname, dev);
putchar (delim);
}
free (biosname);
grub_device_close (dev);
continue;
}
if (print == PRINT_ARC_HINT)
{
const char *map;
map = grub_util_biosdisk_get_compatibility_hint (dev->disk);
if (map)
{
print_full_name (map, dev);
putchar (delim);
}
/* FIXME */
grub_device_close (dev);
continue;
}
if (print == PRINT_ABSTRACTION)
{
probe_abstraction (dev->disk);
putchar (delim);
grub_device_close (dev);
continue;
}
if (print == PRINT_CRYPTODISK_UUID)
{
probe_cryptodisk_uuid (dev->disk);
putchar (delim);
grub_device_close (dev);
continue;
}
if (print == PRINT_PARTMAP)
{
/* Check if dev->disk itself is contained in a partmap. */
probe_partmap (dev->disk);
putchar (delim);
grub_device_close (dev);
continue;
}
if (print == PRINT_MSDOS_PARTTYPE)
{
if (dev->disk->partition
&& strcmp(dev->disk->partition->partmap->name, "msdos") == 0)
printf ("%02x", dev->disk->partition->msdostype);
putchar (delim);
grub_device_close (dev);
continue;
}
if (print == PRINT_GPT_PARTTYPE)
{
if (dev->disk->partition
&& strcmp (dev->disk->partition->partmap->name, "gpt") == 0)
{
struct grub_gpt_partentry gptdata;
grub_partition_t p = dev->disk->partition;
dev->disk->partition = dev->disk->partition->parent;
if (grub_disk_read (dev->disk, p->offset, p->index,
sizeof (gptdata), &gptdata) == 0)
{
grub_gpt_part_type_t gpttype;
gpttype.data1 = grub_le_to_cpu32 (gptdata.type.data1);
gpttype.data2 = grub_le_to_cpu16 (gptdata.type.data2);
gpttype.data3 = grub_le_to_cpu16 (gptdata.type.data3);
grub_memcpy (gpttype.data4, gptdata.type.data4, 8);
grub_printf ("%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
gpttype.data1, gpttype.data2,
gpttype.data3, gpttype.data4[0],
gpttype.data4[1], gpttype.data4[2],
gpttype.data4[3], gpttype.data4[4],
gpttype.data4[5], gpttype.data4[6],
gpttype.data4[7]);
}
dev->disk->partition = p;
}
putchar (delim);
grub_device_close (dev);
continue;
}
}
end:
for (curdrive = drives_names; *curdrive; curdrive++)
free (*curdrive);
free (drives_names);
}
static struct grub_diskfilter_vg *
grub_mdraid_detect (grub_disk_t disk,
struct grub_diskfilter_pv_id *id,
grub_disk_addr_t *start_sector)
{
grub_uint64_t size;
grub_uint8_t minor_version;
size = grub_disk_get_size (disk);
/* Check for an 1.x superblock.
* It's always aligned to a 4K boundary
* and depending on the minor version it can be:
* 0: At least 8K, but less than 12K, from end of device
* 1: At start of device
* 2: 4K from start of device.
*/
for (minor_version = 0; minor_version < 3; ++minor_version)
{
grub_disk_addr_t sector = 0;
struct grub_raid_super_1x sb;
grub_uint16_t role;
grub_uint32_t level;
struct grub_diskfilter_vg *array;
char *uuid;
if (size == GRUB_DISK_SIZE_UNKNOWN && minor_version == 0)
continue;
switch (minor_version)
{
case 0:
sector = (size - 8 * 2) & ~(4 * 2 - 1);
break;
case 1:
sector = 0;
break;
case 2:
sector = 4 * 2;
break;
}
if (grub_disk_read (disk, sector, 0, sizeof (struct grub_raid_super_1x),
&sb))
return NULL;
if (sb.magic != grub_cpu_to_le32_compile_time (SB_MAGIC)
|| grub_le_to_cpu64 (sb.super_offset) != sector)
continue;
if (sb.major_version != grub_cpu_to_le32_compile_time (1))
/* Unsupported version. */
return NULL;
level = grub_le_to_cpu32 (sb.level);
/* Multipath. */
if ((int) level == -4)
level = 1;
if (level != 0 && level != 1 && level != 4 &&
level != 5 && level != 6 && level != 10)
{
grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"Unsupported RAID level: %d", sb.level);
return NULL;
}
if (grub_le_to_cpu32 (sb.dev_number) >=
grub_le_to_cpu32 (sb.max_dev))
/* Spares aren't implemented. */
return NULL;
if (grub_disk_read (disk, sector,
(char *) &sb.dev_roles[grub_le_to_cpu32 (sb.dev_number)]
- (char *) &sb,
sizeof (role), &role))
return NULL;
if (grub_le_to_cpu16 (role)
>= grub_le_to_cpu32 (sb.raid_disks))
/* Spares aren't implemented. */
return NULL;
id->uuidlen = 0;
id->id = grub_le_to_cpu16 (role);
uuid = grub_malloc (16);
if (!uuid)
return NULL;
grub_memcpy (uuid, sb.set_uuid, 16);
*start_sector = grub_le_to_cpu64 (sb.data_offset);
array = grub_diskfilter_make_raid (16, uuid,
grub_le_to_cpu32 (sb.raid_disks),
sb.set_name,
(sb.size)
? grub_le_to_cpu64 (sb.size)
: grub_le_to_cpu64 (sb.data_size),
grub_le_to_cpu32 (sb.chunksize),
grub_le_to_cpu32 (sb.layout),
grub_le_to_cpu32 (sb.level));
return array;
}
/* not 1.x raid. */
return NULL;
}
static struct grub_diskfilter_vg *
grub_ldm_detect (grub_disk_t disk,
struct grub_diskfilter_pv_id *id,
grub_disk_addr_t *start_sector)
{
grub_err_t err;
struct grub_ldm_label label;
struct grub_diskfilter_vg *vg;
#ifdef GRUB_UTIL
grub_util_info ("scanning %s for LDM", disk->name);
#endif
{
int i;
int has_ldm = msdos_has_ldm_partition (disk);
for (i = 0; i < 3; i++)
{
grub_disk_addr_t sector = LDM_LABEL_SECTOR;
switch (i)
{
case 0:
if (!has_ldm)
continue;
sector = LDM_LABEL_SECTOR;
break;
case 1:
/* LDM is never inside a partition. */
if (!has_ldm || disk->partition)
continue;
sector = grub_disk_get_size (disk);
if (sector == GRUB_DISK_SIZE_UNKNOWN)
continue;
sector--;
break;
/* FIXME: try the third copy. */
case 2:
sector = gpt_ldm_sector (disk);
if (!sector)
continue;
break;
}
err = grub_disk_read (disk, sector, 0,
sizeof(label), &label);
if (err)
return NULL;
if (grub_memcmp (label.magic, LDM_MAGIC, sizeof (label.magic)) == 0
&& grub_be_to_cpu16 (label.ver_major) == 0x02
&& grub_be_to_cpu16 (label.ver_minor) >= 0x0b
&& grub_be_to_cpu16 (label.ver_minor) <= 0x0c)
break;
}
/* Return if we didn't find a label. */
if (i == 3)
{
#ifdef GRUB_UTIL
grub_util_info ("no LDM signature found");
#endif
return NULL;
}
}
id->uuid = grub_malloc (LDM_GUID_STRLEN + 1);
if (!id->uuid)
return NULL;
grub_memcpy (id->uuid, label.disk_guid, LDM_GUID_STRLEN);
id->uuid[LDM_GUID_STRLEN] = 0;
id->uuidlen = grub_strlen ((char *) id->uuid);
*start_sector = grub_be_to_cpu64 (label.pv_start);
{
grub_size_t s;
for (s = 0; s < LDM_GUID_STRLEN && label.group_guid[s]; s++);
vg = grub_diskfilter_get_vg_by_uuid (s, label.group_guid);
if (! vg)
vg = make_vg (disk, &label);
}
if (!vg)
{
grub_free (id->uuid);
return NULL;
}
return vg;
}
static grub_err_t
grub_mdraid_detect (grub_disk_t disk, struct grub_raid_array *array,
grub_disk_addr_t *start_sector)
{
grub_disk_addr_t sector = 0;
grub_uint64_t size;
struct grub_raid_super_1x sb;
grub_uint8_t minor_version;
/* The sector where the mdraid 0.90 superblock is stored, if available. */
size = grub_disk_get_size (disk);
/* Check for an 1.x superblock.
* It's always aligned to a 4K boundary
* and depending on the minor version it can be:
* 0: At least 8K, but less than 12K, from end of device
* 1: At start of device
* 2: 4K from start of device.
*/
for (minor_version = 0; minor_version < 3; ++minor_version)
{
if (size == GRUB_DISK_SIZE_UNKNOWN && minor_version == 0)
continue;
switch (minor_version)
{
case 0:
sector = (size - 8 * 2) & ~(4 * 2 - 1);
break;
case 1:
sector = 0;
break;
case 2:
sector = 4 * 2;
break;
}
if (grub_disk_read (disk, sector, 0, sizeof (struct grub_raid_super_1x),
&sb))
return grub_errno;
if (grub_le_to_cpu32 (sb.magic) != SB_MAGIC
|| grub_le_to_cpu64 (sb.super_offset) != sector)
continue;
{
grub_uint64_t sb_size;
struct grub_raid_super_1x *real_sb;
grub_uint32_t level;
if (grub_le_to_cpu32 (sb.major_version) != 1)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"Unsupported RAID version: %d",
grub_le_to_cpu32 (sb.major_version));
level = grub_le_to_cpu32 (sb.level);
/* Multipath. */
if ((int) level == -4)
level = 1;
if (level != 0 && level != 1 && level != 4 &&
level != 5 && level != 6 && level != 10)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"Unsupported RAID level: %d", sb.level);
/* 1.x superblocks don't have a fixed size on disk. So we have to
read it again now that we now the max device count. */
sb_size = sizeof (struct grub_raid_super_1x)
+ 2 * grub_le_to_cpu32 (sb.max_dev);
real_sb = grub_malloc (sb_size);
if (! real_sb)
return grub_errno;
if (grub_disk_read (disk, sector, 0, sb_size, real_sb))
{
grub_free (real_sb);
return grub_errno;
}
array->name = grub_strdup (real_sb->set_name);
if (! array->name)
{
grub_free (real_sb);
return grub_errno;
}
array->number = 0;
array->level = grub_le_to_cpu32 (real_sb->level);
array->layout = grub_le_to_cpu32 (real_sb->layout);
array->total_devs = grub_le_to_cpu32 (real_sb->raid_disks);
array->disk_size = grub_le_to_cpu64 (real_sb->size);
array->chunk_size = grub_le_to_cpu32 (real_sb->chunksize);
if (grub_le_to_cpu32 (real_sb->dev_number) >=
grub_le_to_cpu32 (real_sb->max_dev))
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"spares aren't implemented");
array->index = grub_le_to_cpu16
(real_sb->dev_roles[grub_le_to_cpu32 (real_sb->dev_number)]);
array->uuid_len = 16;
array->uuid = grub_malloc (16);
if (!array->uuid)
{
grub_free (real_sb);
return grub_errno;
}
grub_memcpy (array->uuid, real_sb->set_uuid, 16);
*start_sector = grub_le_to_cpu64 (real_sb->data_offset);
grub_free (real_sb);
return 0;
}
}
return grub_error (GRUB_ERR_OUT_OF_RANGE, "not 1.x raid");
}
static struct grub_diskfilter_vg *
grub_dmraid_nv_detect (grub_disk_t disk,
struct grub_diskfilter_pv_id *id,
grub_disk_addr_t *start_sector)
{
grub_disk_addr_t sector;
struct grub_nv_super sb;
int level;
grub_uint64_t disk_size;
char *uuid;
if (disk->partition)
/* Skip partition. */
return NULL;
sector = grub_disk_get_size (disk);
if (sector == GRUB_DISK_SIZE_UNKNOWN)
/* Not raid. */
return NULL;
sector -= 2;
if (grub_disk_read (disk, sector, 0, sizeof (sb), &sb))
return NULL;
if (grub_memcmp (sb.vendor, NV_ID_STRING, 6))
/* Not raid. */
return NULL;
if (sb.version != NV_VERSION)
{
grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"unknown version: %d.%d", sb.version);
return NULL;
}
switch (sb.array.raid_level)
{
case NV_LEVEL_0:
level = 0;
disk_size = sb.capacity / sb.array.total_volumes;
break;
case NV_LEVEL_1:
level = 1;
disk_size = sb.capacity;
break;
case NV_LEVEL_5:
level = 5;
disk_size = sb.capacity / (sb.array.total_volumes - 1);
break;
default:
grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"unsupported RAID level: %d", sb.array.raid_level);
return NULL;
}
uuid = grub_malloc (sizeof (sb.array.signature));
if (! uuid)
return NULL;
grub_memcpy (uuid, (char *) &sb.array.signature,
sizeof (sb.array.signature));
id->uuidlen = 0;
id->id = sb.unit_number;
*start_sector = 0;
return grub_diskfilter_make_raid (sizeof (sb.array.signature),
uuid, sb.array.total_volumes,
NULL, disk_size,
sb.array.stripe_block_size,
GRUB_RAID_LAYOUT_LEFT_ASYMMETRIC,
level);
}
