1 files changed, 33 insertions, 0 deletions
diff --git a/back/cmd/authfs/authfs.go b/back/cmd/authfs/authfs.go
index 71e5128..bf6e340 100644
--- a/back/cmd/authfs/authfs.go
+++ b/back/cmd/authfs/authfs.go
@@ -12,6 +12,7 @@ import (
 
 type File interface {
 	Qid() (p9.QID, error)
+	Open(mode p9.Mode) error
 	// TODO
 }
 
@@ -121,3 +122,35 @@ func (fs *Authfs) attach(fid p9.FID, f File) error {
 	fs.files[fid] = f
 	return nil
 }
+
+func (fs *Authfs) Rclunk(fid p9.FID) error {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	if _, exists := fs.files[fid]; !exists {
+		return ErrFidNotExist
+	}
+	delete(fs.files, fid)
+	return nil
+}
+
+func (fs *Authfs) Ropen(fid p9.FID, mode p9.Mode) (p9.QID, error) {
+	f, err := fs.getFile(fid)
+	if err != nil {
+		return p9.QID{}, err
+	}
+	if err := f.Open(mode); err != nil {
+		return p9.QID{}, err
+	}
+	return f.Qid()
+}
+
+func (fs *Authfs) getFile(fid p9.FID) (File, error) {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+	f, exists := fs.files[fid]
+	if !exists {
+		return nil, ErrFidNotExist
+	}
+	return f, nil
+}