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[VFATLIB] Make Chkdsk handle volume opening locking failures.

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For instance, when repair is required, we can ask the caller whether we should
continue or not in case locking failed.
Also, introduced a hack for 1st stage where IopParseDevice() hack is in usage
so that broken NTSTATUS is diverted to appropriate status.
That way, usetup will properly continue even if locking failed (due to its
callback stub!)

CORE-14087
This commit is contained in:
Pierre Schweitzer 2017-12-09 21:07:09 +01:00
parent 287d7cd80a
commit 6a224a38a1
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GPG key ID: 7545556C3D585B0B
3 changed files with 31 additions and 5 deletions
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16
sdk/lib/fslib/vfatlib/vfatlib.c
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@ -383,6 +383,7 @@ VfatChkdsk(IN PUNICODE_STRING DriveRoot,
BOOLEAN salvage_files;
ULONG free_clusters;
DOS_FS fs;
NTSTATUS Status;
RtlZeroMemory(&fs, sizeof(fs));
@ -403,7 +404,20 @@ VfatChkdsk(IN PUNICODE_STRING DriveRoot,
salvage_files = TRUE;
/* Open filesystem and lock it */
fs_open(DriveRoot, FsCheckFlags & FSCHECK_READ_WRITE);
Status = fs_open(DriveRoot, FsCheckFlags & FSCHECK_READ_WRITE);
if (Status == STATUS_ACCESS_DENIED)
{
/* We failed to lock, ask the caller whether we should continue */
if (Callback(VOLUMEINUSE, 0, NULL))
{
Status = STATUS_SUCCESS;
}
}
if (!NT_SUCCESS(Status))
{
fs_close(FALSE);
return STATUS_DISK_CORRUPT_ERROR;
}
if (CheckOnlyIfDirty && !fs_isdirty())
{