diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/btrfs-dump-tree/main.go | 128 |
1 files changed, 127 insertions, 1 deletions
diff --git a/cmd/btrfs-dump-tree/main.go b/cmd/btrfs-dump-tree/main.go index 7dac40e..ca9d527 100644 --- a/cmd/btrfs-dump-tree/main.go +++ b/cmd/btrfs-dump-tree/main.go @@ -5,6 +5,7 @@ import ( "os" "strings" + "lukeshu.com/btrfs-tools/pkg/binstruct" "lukeshu.com/btrfs-tools/pkg/btrfs" ) @@ -79,7 +80,15 @@ func printTree(fs *btrfs.FS, root btrfs.LogicalAddr) { printHeaderInfo(node) switch node := node.(type) { case *btrfs.InternalNode: - // TODO + for _, item := range node.Body { + fmt.Printf("\t%s block %d gen %d\n", + fmtKey(item.Data.Key), + item.Data.BlockPtr, + item.Data.Generation) + } + for _, item := range node.Body { + printTree(fs, item.Data.BlockPtr) + } case *btrfs.LeafNode: for i, item := range node.Body { fmt.Printf("\titem %d %s itemoff %d itemsize %d\n", @@ -87,6 +96,112 @@ func printTree(fs *btrfs.FS, root btrfs.LogicalAddr) { fmtKey(item.Data.Key), item.Data.DataOffset, item.Data.DataSize) + switch item.Data.Key.ItemType { + case btrfs.BTRFS_UNTYPED_KEY: + // TODO + case btrfs.BTRFS_INODE_ITEM_KEY: + // TODO(!) + case btrfs.BTRFS_INODE_REF_KEY: + dat := item.Data.Data.Data + for len(dat) > 0 { + var ref btrfs.InodeRefItem + if err := binstruct.Unmarshal(dat, &ref); err != nil { + fmt.Printf("error: %v\n", err) + return + } + dat = dat[0xA:] + ref.Name = dat[:ref.NameLen] + dat = dat[ref.NameLen:] + + fmt.Printf("\t\tindex %d namelen %d name: %s\n", + ref.Index, ref.NameLen, ref.Name) + } + case btrfs.BTRFS_INODE_EXTREF_KEY: + // TODO + case btrfs.BTRFS_DIR_ITEM_KEY, btrfs.BTRFS_DIR_INDEX_KEY, btrfs.BTRFS_XATTR_ITEM_KEY: + // TODO + case btrfs.BTRFS_DIR_LOG_INDEX_KEY, btrfs.BTRFS_DIR_LOG_ITEM_KEY: + // TODO + case btrfs.BTRFS_ORPHAN_ITEM_KEY: + fmt.Printf("\t\torphan item\n") + case btrfs.BTRFS_ROOT_ITEM_KEY: + var obj btrfs.RootItem + if err := binstruct.Unmarshal(item.Data.Data.Data, &obj); err != nil { + fmt.Printf("error: %v\n", err) + return + } + fmt.Printf("\t\tgeneration %d root_dirid %d bytenr %d byte_limit %d bytes_used %d\n", + obj.Generation, obj.RootDirID, obj.ByteNr, obj.ByteLimit, obj.BytesUsed) + fmt.Printf("\t\tlast_snapshot %d flags %s refs %d\n", + obj.LastSnapshot, obj.Flags, obj.Refs) + fmt.Printf("\t\tdrop_progress %s drop_level %d\n", + fmtKey(obj.DropProgress), obj.DropLevel) + fmt.Printf("\t\tlevel %d generation_v2 %d\n", + obj.Level, obj.GenerationV2) + if obj.Generation == obj.GenerationV2 { + fmt.Printf("\t\tuuid %s\n", obj.UUID) + fmt.Printf("\t\tparent_uuid %s\n", obj.ParentUUID) + fmt.Printf("\t\treceived_uuid %s\n", obj.ReceivedUUID) + fmt.Printf("\t\tctransid %d otransid %d stransid %d rtransid %d\n", + obj.CTransID, obj.OTransID, obj.STransID, obj.RTransID) + fmt.Printf("\t\tctime %s\n", fmtTime(obj.CTime)) + fmt.Printf("\t\totime %s\n", fmtTime(obj.OTime)) + fmt.Printf("\t\tstime %s\n", fmtTime(obj.STime)) + fmt.Printf("\t\trtime %s\n", fmtTime(obj.RTime)) + } + case btrfs.BTRFS_ROOT_REF_KEY: + // TODO + case btrfs.BTRFS_ROOT_BACKREF_KEY: + // TODO + case btrfs.BTRFS_EXTENT_ITEM_KEY: + // TODO + case btrfs.BTRFS_METADATA_ITEM_KEY: + // TODO + case btrfs.BTRFS_TREE_BLOCK_REF_KEY: + fmt.Printf("\t\ttree block backref\n") + case btrfs.BTRFS_SHARED_BLOCK_REF_KEY: + fmt.Printf("\t\tshared block backref\n") + case btrfs.BTRFS_EXTENT_DATA_REF_KEY: + // TODO + case btrfs.BTRFS_SHARED_DATA_REF_KEY: + // TODO + case btrfs.BTRFS_EXTENT_REF_V0_KEY: + fmt.Printf("\t\textent ref v0 (deprecated)\n") + case btrfs.BTRFS_CSUM_ITEM_KEY: + fmt.Printf("\t\tcsum item\n") + case btrfs.BTRFS_EXTENT_CSUM_KEY: + // TODO + case btrfs.BTRFS_EXTENT_DATA_KEY: + // TODO + case btrfs.BTRFS_BLOCK_GROUP_ITEM_KEY: + // TODO + case btrfs.BTRFS_FREE_SPACE_INFO_KEY: + // TODO + case btrfs.BTRFS_FREE_SPACE_EXTENT_KEY: + fmt.Printf("\t\tfree space extent\n") + case btrfs.BTRFS_FREE_SPACE_BITMAP_KEY: + fmt.Printf("\t\tfree space bitmap\n") + case btrfs.BTRFS_CHUNK_ITEM_KEY: + // TODO(!) + case btrfs.BTRFS_DEV_ITEM_KEY: + // TODO + case btrfs.BTRFS_DEV_EXTENT_KEY: + // TODO + case btrfs.BTRFS_QGROUP_STATUS_KEY: + // TODO + case btrfs.BTRFS_QGROUP_RELATION_KEY, btrfs.BTRFS_QGROUP_INFO_KEY: + // TODO + case btrfs.BTRFS_QGROUP_LIMIT_KEY: + // TODO + case btrfs.BTRFS_UUID_KEY_SUBVOL, btrfs.BTRFS_UUID_KEY_RECEIVED_SUBVOL: + // TODO + case btrfs.BTRFS_STRING_ITEM_KEY: + // TODO + case btrfs.BTRFS_PERSISTENT_ITEM_KEY: + // TODO + case btrfs.BTRFS_TEMPORARY_ITEM_KEY: + // TODO + } } } } @@ -118,6 +233,12 @@ func printHeaderInfo(node btrfs.Node) { node.GetNodeHeader().Addr, node.GetNodeHeader().Data.Flags, node.GetNodeHeader().Data.BackrefRev) + + fmt.Printf("checksum stored %x\n", node.GetNodeHeader().Data.Checksum) + fmt.Printf("checksum calced %v\n", "TODO") + + fmt.Printf("fs uuid %s\n", node.GetNodeHeader().Data.MetadataUUID) + fmt.Printf("chunk uuid %s\n", node.GetNodeHeader().Data.ChunkTreeUUID) } // mimics print-tree.c:btrfs_print_key() @@ -140,3 +261,8 @@ func fmtKey(key btrfs.Key) string { } return out.String() } + +func fmtTime(t btrfs.Time) string { + return fmt.Sprintf("%d.%d (%s)", + t.Sec, t.NSec, t.ToStd().Format("2006-01-02 15:04:05")) +} |