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path: root/lib/btrfsprogs/btrfsinspect/print_tree.go
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Diffstat (limited to 'lib/btrfsprogs/btrfsinspect/print_tree.go')
-rw-r--r--lib/btrfsprogs/btrfsinspect/print_tree.go38
1 files changed, 22 insertions, 16 deletions
diff --git a/lib/btrfsprogs/btrfsinspect/print_tree.go b/lib/btrfsprogs/btrfsinspect/print_tree.go
index 2bb6762..78a9df6 100644
--- a/lib/btrfsprogs/btrfsinspect/print_tree.go
+++ b/lib/btrfsprogs/btrfsinspect/print_tree.go
@@ -12,6 +12,7 @@ import (
"github.com/datawire/dlib/dlog"
+ "git.lukeshu.com/btrfs-progs-ng/lib/binstruct"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsitem"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfssum"
@@ -49,7 +50,7 @@ func DumpTrees(ctx context.Context, out io.Writer, fs *btrfs.FS) {
},
btrfs.TreeWalkHandler{
Item: func(_ btrfs.TreePath, item btrfs.Item) error {
- if item.Head.Key.ItemType != btrfsitem.ROOT_ITEM_KEY {
+ if item.Key.ItemType != btrfsitem.ROOT_ITEM_KEY {
return nil
}
treeName, ok := map[btrfs.ObjID]string{
@@ -71,12 +72,12 @@ func DumpTrees(ctx context.Context, out io.Writer, fs *btrfs.FS) {
btrfs.FREE_SPACE_TREE_OBJECTID: "free space",
btrfs.MULTIPLE_OBJECTIDS: "multiple",
btrfs.BLOCK_GROUP_TREE_OBJECTID: "block group",
- }[item.Head.Key.ObjectID]
+ }[item.Key.ObjectID]
if !ok {
treeName = "file"
}
- fmt.Fprintf(out, "%v tree %v \n", treeName, fmtKey(item.Head.Key))
- printTree(ctx, out, fs, item.Head.Key.ObjectID)
+ fmt.Fprintf(out, "%v tree %v \n", treeName, fmtKey(item.Key))
+ printTree(ctx, out, fs, item.Key.ObjectID)
return nil
},
},
@@ -90,6 +91,7 @@ func DumpTrees(ctx context.Context, out io.Writer, fs *btrfs.FS) {
// kernel-shared/print-tree.c:btrfs_print_tree() and
// kernel-shared/print-tree.c:btrfs_print_leaf()
func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.ObjID) {
+ var itemOffset uint32
fs.TreeWalk(
treeID,
func(err *btrfs.TreeError) {
@@ -98,6 +100,7 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
btrfs.TreeWalkHandler{
Node: func(path btrfs.TreePath, nodeRef *util.Ref[btrfsvol.LogicalAddr, btrfs.Node]) error {
printHeaderInfo(out, nodeRef.Data)
+ itemOffset = nodeRef.Data.Size - uint32(binstruct.StaticSize(btrfs.NodeHeader{}))
return nil
},
PreKeyPointer: func(_ btrfs.TreePath, item btrfs.KeyPointer) error {
@@ -109,11 +112,14 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
},
Item: func(path btrfs.TreePath, item btrfs.Item) error {
i := path.Nodes[len(path.Nodes)-1].ItemIdx
+ bs, _ := binstruct.Marshal(item.Body)
+ itemSize := uint32(len(bs))
+ itemOffset -= itemSize
fmt.Fprintf(out, "\titem %v %v itemoff %v itemsize %v\n",
i,
- fmtKey(item.Head.Key),
- item.Head.DataOffset,
- item.Head.DataSize)
+ fmtKey(item.Key),
+ itemOffset,
+ itemSize)
switch body := item.Body.(type) {
case btrfsitem.FreeSpaceHeader:
fmt.Fprintf(out, "\t\tlocation %v\n", fmtKey(body.Location))
@@ -169,13 +175,13 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
}
case btrfsitem.RootRef:
var tag string
- switch item.Head.Key.ItemType {
+ switch item.Key.ItemType {
case btrfsitem.ROOT_REF_KEY:
tag = "ref"
case btrfsitem.ROOT_BACKREF_KEY:
tag = "backref"
default:
- tag = fmt.Sprintf("(error: unhandled RootRef item type: %v)", item.Head.Key.ItemType)
+ tag = fmt.Sprintf("(error: unhandled RootRef item type: %v)", item.Key.ItemType)
}
fmt.Fprintf(out, "\t\troot %v key dirid %v sequence %v name %s\n",
tag, body.DirID, body.Sequence, body.Name)
@@ -190,7 +196,7 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
case btrfsitem.Metadata:
fmt.Fprintf(out, "\t\trefs %v gen %v flags %v\n",
body.Head.Refs, body.Head.Generation, body.Head.Flags)
- fmt.Fprintf(out, "\t\ttree block skinny level %v\n", item.Head.Key.Offset)
+ fmt.Fprintf(out, "\t\ttree block skinny level %v\n", item.Key.Offset)
printExtentInlineRefs(out, body.Refs)
//case btrfsitem.EXTENT_DATA_REF_KEY:
// // TODO
@@ -200,7 +206,7 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
sb, _ := fs.Superblock()
sectorSize := btrfsvol.AddrDelta(sb.Data.SectorSize)
- start := btrfsvol.LogicalAddr(item.Head.Key.Offset)
+ start := btrfsvol.LogicalAddr(item.Key.Offset)
itemSize := btrfsvol.AddrDelta(len(body.Sums)) * sectorSize
fmt.Fprintf(out, "\t\trange start %d end %d length %d",
start, start.Add(itemSize), itemSize)
@@ -298,8 +304,8 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
// // TODO
case btrfsitem.DevStats:
fmt.Fprintf(out, "\t\tpersistent item objectid %v offset %v\n",
- item.Head.Key.ObjectID.Format(item.Head.Key.ItemType), item.Head.Key.Offset)
- switch item.Head.Key.ObjectID {
+ item.Key.ObjectID.Format(item.Key.ItemType), item.Key.Offset)
+ switch item.Key.ObjectID {
case btrfs.DEV_STATS_OBJECTID:
fmt.Fprintf(out, "\t\tdevice stats\n")
fmt.Fprintf(out, "\t\twrite_errs %v read_errs %v flush_errs %v corruption_errs %v generation %v\n",
@@ -309,12 +315,12 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
body.Values[btrfsitem.DEV_STAT_CORRUPTION_ERRS],
body.Values[btrfsitem.DEV_STAT_GENERATION_ERRS])
default:
- fmt.Fprintf(out, "\t\tunknown persistent item objectid %v\n", item.Head.Key.ObjectID)
+ fmt.Fprintf(out, "\t\tunknown persistent item objectid %v\n", item.Key.ObjectID)
}
//case btrfsitem.TEMPORARY_ITEM_KEY:
// // TODO
case btrfsitem.Empty:
- switch item.Head.Key.ItemType {
+ switch item.Key.ItemType {
case btrfsitem.ORPHAN_ITEM_KEY: // 48
fmt.Fprintf(out, "\t\torphan item\n")
case btrfsitem.TREE_BLOCK_REF_KEY: // 176
@@ -330,7 +336,7 @@ func printTree(ctx context.Context, out io.Writer, fs *btrfs.FS, treeID btrfs.Ob
//case btrfsitem.CSUM_ITEM_KEY:
// fmt.Fprintf(out, "\t\tcsum item\n")
default:
- fmt.Fprintf(out, "\t\t(error) unhandled empty item type: %v\n", item.Head.Key.ItemType)
+ fmt.Fprintf(out, "\t\t(error) unhandled empty item type: %v\n", item.Key.ItemType)
}
case btrfsitem.Error:
fmt.Fprintf(out, "\t\t(error) error item: %v\n", body.Err)
generated by cgit v1.2.3-2-g168b (git 2.25.1) at 2024-07-27 23:46:39 +0000