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60 lines
1.9 KiB
60 lines
1.9 KiB
From 2181ce4a5726c4c72e68e6964b7ef7442e507707 Mon Sep 17 00:00:00 2001 |
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From: Alexey Obitotskiy <aleksey.obitotskiy@intel.com> |
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Date: Fri, 24 Jun 2016 11:59:35 +0200 |
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Subject: [PATCH] libblkid: Add metadata signature check for IMSM on 4Kn drives |
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Drives with 512 and 4K sectors have different offset for |
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metadata signature. Without signature detected on 4Kn drives |
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those drives will not be recognized as raid member. This |
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patch adds checking for IMSM signature for 4Kn drives. |
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1451704 |
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Signed-off-by: Alexey Obitotskiy <aleksey.obitotskiy@intel.com> |
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Signed-off-by: Karel Zak <kzak@redhat.com> |
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--- |
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libblkid/src/superblocks/isw_raid.c | 13 +++++++------ |
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1 file changed, 7 insertions(+), 6 deletions(-) |
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diff --git a/libblkid/src/superblocks/isw_raid.c b/libblkid/src/superblocks/isw_raid.c |
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index 065c2b2..81d53a1 100644 |
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--- a/libblkid/src/superblocks/isw_raid.c |
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+++ b/libblkid/src/superblocks/isw_raid.c |
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@@ -25,11 +25,11 @@ struct isw_metadata { |
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#define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. " |
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- |
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static int probe_iswraid(blkid_probe pr, |
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const struct blkid_idmag *mag __attribute__((__unused__))) |
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{ |
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uint64_t off; |
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+ unsigned int sector_size; |
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struct isw_metadata *isw; |
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if (pr->size < 0x10000) |
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@@ -37,16 +37,17 @@ static int probe_iswraid(blkid_probe pr, |
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if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr)) |
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return 1; |
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- off = ((pr->size / 0x200) - 2) * 0x200; |
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- isw = (struct isw_metadata *) |
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- blkid_probe_get_buffer(pr, |
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- off, |
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- sizeof(struct isw_metadata)); |
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+ sector_size = blkid_probe_get_sectorsize(pr); |
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+ off = ((pr->size / sector_size) - 2) * sector_size; |
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+ |
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+ isw = (struct isw_metadata *)blkid_probe_get_buffer(pr, |
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+ off, sizeof(struct isw_metadata)); |
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if (!isw) |
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return errno ? -errno : 1; |
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if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0) |
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return 1; |
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+ |
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if (blkid_probe_sprintf_version(pr, "%6s", |
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&isw->sig[sizeof(ISW_SIGNATURE)-1]) != 0) |
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return 1; |
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-- |
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2.9.4 |
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