2 * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
4 * Inspired by libvolume_id by
5 * Kay Sievers <kay.sievers@vrfy.org>
7 * This file may be redistributed under the terms of the
8 * GNU Lesser General Public License.
23 uint8_t version_number;
25 uint16_t disk_bit_mask;
26 uint8_t disk_array_ex;
27 uint32_t capacity_low;
28 uint32_t capacity_high;
29 uint32_t serial_checksum;
30 } __attribute__((packed)) array;
31 uint32_t serial_checksum[8];
33 } __attribute__((packed));
35 #define VIA_SIGNATURE 0xAA55
37 /* 8 bit checksum on first 50 bytes of metadata. */
38 static uint8_t via_checksum(struct via_metadata *v)
40 uint8_t i = 50, cs = 0;
43 cs += ((uint8_t*) v)[i];
45 return cs == v->checksum;
48 static int probe_viaraid(blkid_probe pr, const struct blkid_idmag *mag)
51 struct via_metadata *v;
53 if (pr->size < 0x10000)
56 off = ((pr->size / 0x200)-1) * 0x200;
58 v = (struct via_metadata *)
59 blkid_probe_get_buffer(pr,
61 sizeof(struct via_metadata));
64 if (le16_to_cpu(v->signature) != VIA_SIGNATURE)
66 if (v->version_number > 2)
70 if (blkid_probe_sprintf_version(pr, "%u", v->version_number) != 0)
75 const struct blkid_idinfo viaraid_idinfo = {
76 .name = "via_raid_member",
77 .usage = BLKID_USAGE_RAID,
78 .probefunc = probe_viaraid,
79 .magics = BLKID_NONE_MAGIC