1 files changed, 29 insertions, 0 deletions
diff --git a/src/pybind/mgr/volumes/fs/operations/resolver.py b/src/pybind/mgr/volumes/fs/operations/resolver.py
new file mode 100644
index 000000000..c7ae8c1a3
--- /dev/null
+++ b/src/pybind/mgr/volumes/fs/operations/resolver.py
@@ -0,0 +1,29 @@
+import os
+
+from .group import Group
+
+
+def splitall(path):
+    if path == "/":
+        return ["/"]
+    s = os.path.split(path)
+    return splitall(s[0]) + [s[1]]
+
+
+def resolve(vol_spec, path):
+    parts = splitall(path)
+    if len(parts) != 4 or os.path.join(parts[0], parts[1]) != vol_spec.subvolume_prefix:
+        return None
+    groupname = None if parts[2] == Group.NO_GROUP_NAME else parts[2]
+    subvolname = parts[3]
+    return (groupname, subvolname)
+
+
+def resolve_trash(vol_spec, path):
+    parts = splitall(path)
+    if len(parts) != 6 or os.path.join(parts[0], parts[1]) != vol_spec.subvolume_prefix or \
+       parts[4] != '.trash':
+        return None
+    groupname = None if parts[2] == Group.NO_GROUP_NAME else parts[2]
+    subvolname = parts[3]
+    return (groupname, subvolname)