NTFS: Fix comparison of $MFT and $MFTMirr to not bail out when there are
unused, invalid mft records which are the same in both $MFT and $MFTMirr. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
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@ -28,6 +28,9 @@ ToDo/Notes:
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continued the attribute lookup loop instead of aborting it.
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- Use buffer_migrate_page() for the ->migratepage function of all ntfs
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address space operations.
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- Fix comparison of $MFT and $MFTMirr to not bail out when there are
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unused, invalid mft records which are the same in both $MFT and
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$MFTMirr.
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2.1.26 - Minor bug fixes and updates.
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@ -1099,26 +1099,38 @@ static BOOL check_mft_mirror(ntfs_volume *vol)
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kmirr = page_address(mirr_page);
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++index;
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}
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/* Do not check the record if it is not in use. */
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if (((MFT_RECORD*)kmft)->flags & MFT_RECORD_IN_USE) {
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/* Make sure the record is ok. */
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if (ntfs_is_baad_recordp((le32*)kmft)) {
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ntfs_error(sb, "Incomplete multi sector transfer "
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"detected in mft record %i.", i);
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ntfs_error(sb, "Incomplete multi sector "
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"transfer detected in mft "
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"record %i.", i);
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mm_unmap_out:
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ntfs_unmap_page(mirr_page);
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mft_unmap_out:
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ntfs_unmap_page(mft_page);
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return FALSE;
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}
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}
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/* Do not check the mirror record if it is not in use. */
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if (((MFT_RECORD*)kmirr)->flags & MFT_RECORD_IN_USE) {
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if (ntfs_is_baad_recordp((le32*)kmirr)) {
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ntfs_error(sb, "Incomplete multi sector transfer "
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"detected in mft mirror record %i.", i);
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ntfs_error(sb, "Incomplete multi sector "
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"transfer detected in mft "
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"mirror record %i.", i);
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goto mm_unmap_out;
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}
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}
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/* Get the amount of data in the current record. */
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bytes = le32_to_cpu(((MFT_RECORD*)kmft)->bytes_in_use);
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if (!bytes || bytes > vol->mft_record_size) {
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if (bytes < sizeof(MFT_RECORD_OLD) ||
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bytes > vol->mft_record_size ||
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ntfs_is_baad_recordp((le32*)kmft)) {
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bytes = le32_to_cpu(((MFT_RECORD*)kmirr)->bytes_in_use);
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if (!bytes || bytes > vol->mft_record_size)
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if (bytes < sizeof(MFT_RECORD_OLD) ||
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bytes > vol->mft_record_size ||
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ntfs_is_baad_recordp((le32*)kmirr))
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bytes = vol->mft_record_size;
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}
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/* Compare the two records. */
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