diff options
| author | Hannes Reinecke <hare@suse.de> | 2007-12-16 19:22:32 +0100 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@vrfy.org> | 2007-12-16 19:22:32 +0100 |
| commit | 5caa40bea22b9ac07dbe667985d1b8556d8b6b80 (patch) | |
| tree | 1a05b3c754ab03d5b0e2bd4a29c89ae8bb1a3ea8 /extras/volume_id/lib/lvm.c | |
| parent | 9e5920842b0b414e78b04ddd40fb4cf29b0d855c (diff) | |
volume_id: LVM - add uuid
Diffstat (limited to 'extras/volume_id/lib/lvm.c')
| -rw-r--r-- | extras/volume_id/lib/lvm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/extras/volume_id/lib/lvm.c b/extras/volume_id/lib/lvm.c index 9c83c55307..7c4f81131c 100644 --- a/extras/volume_id/lib/lvm.c +++ b/extras/volume_id/lib/lvm.c @@ -38,6 +38,11 @@ struct lvm2_super_block { uint8_t type[8]; } PACKED; +struct lvm2_pv_header { + uint8_t id[32]; + uint64_t devsize_xl; +} PACKED; + #define LVM1_SB_OFF 0x400 #define LVM1_MAGIC "HM" @@ -71,6 +76,7 @@ int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size) const uint8_t *buf; unsigned int soff; struct lvm2_super_block *lvm; + struct lvm2_pv_header *pvhdr; dbg("probing at offset 0x%llx", (unsigned long long) off); @@ -89,8 +95,13 @@ int volume_id_probe_lvm2(struct volume_id *id, uint64_t off, uint64_t size) return -1; found: + dbg("found at offset 0x%x (pv hdr offset 0x%x)", + soff, cpu_to_le32(lvm->offset_xl)); + soff += cpu_to_le32(lvm->offset_xl); + pvhdr = (struct lvm2_pv_header *) &buf[soff]; memcpy(id->type_version, lvm->type, 8); volume_id_set_usage(id, VOLUME_ID_RAID); + volume_id_set_uuid(id, pvhdr->id, 0, UUID_LVM); id->type = "LVM2_member"; return 0; |