46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
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#include "thin-provisioning/superblock_checker.h"
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#include "thin-provisioning/metadata_disk_structures.h"
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#include "thin-provisioning/superblock_validator.h"
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using namespace thin_provisioning;
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//----------------------------------------------------------------
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superblock_checker::superblock_checker(block_manager::ptr bm)
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: bm_(bm),
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damage(new damage_list)
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{
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}
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// FIXME: Other things to check:
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// - magic
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// - version
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// - 3 * flags (should be zero)
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// - in bounds: metadata_snap, data_mapping_root
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// - metadata_nr_blocks_ matches what we've been given.
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damage_list_ptr
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superblock_checker::check()
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{
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superblock sb;
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damage_list_ptr damage(new damage_list);
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try {
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block_manager::read_ref r = bm_->read_lock(SUPERBLOCK_LOCATION, superblock_validator());
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superblock_disk const *sbd = reinterpret_cast<superblock_disk const *>(&r.data());
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superblock_traits::unpack(*sbd, sb);
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} catch (checksum_error const &e) {
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metadata_damage::ptr err(new super_block_corruption);
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err->set_message("checksum error");
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damage->push_back(err);
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return damage;
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}
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return damage;
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}
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//----------------------------------------------------------------
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