diff options
| author | Kay Sievers <kay.sievers@suse.de> | 2006-11-15 20:41:25 +0100 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@suse.de> | 2006-11-15 20:41:25 +0100 |
| commit | aa68c048f84b95fd982cb0fb2210ea740dbebc64 (patch) | |
| tree | 9d7fdd84cf1c72d405f075e6e500bff5950e9659 /extras/volume_id/lib/linux_raid.c | |
| parent | 77ab93ed972d3a83d8f48d434c7e28153ae6dab6 (diff) | |
volume_id: fix endianess bug in linux_raid detection
Diffstat (limited to 'extras/volume_id/lib/linux_raid.c')
| -rw-r--r-- | extras/volume_id/lib/linux_raid.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/extras/volume_id/lib/linux_raid.c b/extras/volume_id/lib/linux_raid.c index 17819375ba..b8a819f671 100644 --- a/extras/volume_id/lib/linux_raid.c +++ b/extras/volume_id/lib/linux_raid.c @@ -27,7 +27,7 @@ #include "util.h" static struct mdp_super_block { - uint32_t md_magic; + uint8_t md_magic[4]; uint32_t major_version; uint32_t minor_version; uint32_t patch_version; @@ -46,7 +46,7 @@ static struct mdp_super_block { } PACKED *mdp; #define MD_RESERVED_BYTES 0x10000 -#define MD_MAGIC 0xa92b4efc +#define MD_MAGIC "\xa9\x2b\x4e\xfc" int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size) { @@ -56,7 +56,6 @@ int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size info("probing at offset 0x%llx, size 0x%llx", (unsigned long long) off, (unsigned long long) size); - if (size < 0x10000) return -1; @@ -64,24 +63,20 @@ int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size buf = volume_id_get_buffer(id, off + sboff, 0x800); if (buf == NULL) return -1; - mdp = (struct mdp_super_block *) buf; - if (le32_to_cpu(mdp->md_magic) != MD_MAGIC) + if (memcmp(mdp->md_magic, MD_MAGIC, 4) != 0) return -1; memcpy(uuid, &mdp->set_uuid0, 4); memcpy(&uuid[4], &mdp->set_uuid1, 12); volume_id_set_uuid(id, uuid, UUID_DCE); - snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u", le32_to_cpu(mdp->major_version), le32_to_cpu(mdp->minor_version), le32_to_cpu(mdp->patch_version)); - dbg("found raid signature"); volume_id_set_usage(id, VOLUME_ID_RAID); id->type = "linux_raid_member"; - return 0; } |