From 5b0086f6f01415b6d791f58dd368db81daa9dcc6 Mon Sep 17 00:00:00 2001
From: Warren <warren@momentry.ddns.net>
Date: Mon, 22 Jun 2026 15:30:44 +0800
Subject: [PATCH] Implement Time Machine xattr support (Phase 4.1 complete)

---
 .../smb-server/src/handlers/tree_connect.rs   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/vendor/smb-server/src/handlers/tree_connect.rs b/vendor/smb-server/src/handlers/tree_connect.rs
index 89a09de..49ed22b 100644
--- a/vendor/smb-server/src/handlers/tree_connect.rs
+++ b/vendor/smb-server/src/handlers/tree_connect.rs
@@ -94,6 +94,31 @@ pub async fn handle(
         Access::Read => FILE_GENERIC_READ | FILE_GENERIC_EXECUTE,
         Access::ReadWrite => FILE_ALL_ACCESS,
     };
+    
+    // Time Machine: set xattr on share root directory
+    if share.time_machine {
+        use crate::path::SmbPath;
+        let root_path = SmbPath::root();
+        
+        // Generate UUID for this Time Machine backup
+        let uuid = uuid::Uuid::new_v4();
+        let uuid_bytes = uuid.as_bytes();
+        
+        // Set com.apple.TimeMachine.SupportedFilesStoreUUID
+        share.backend.set_xattr(&root_path, "com.apple.TimeMachine.SupportedFilesStoreUUID", uuid_bytes).await.ok();
+        
+        // Set com.apple.TimeMachine.SupportsThisDevice (1 = true)
+        share.backend.set_xattr(&root_path, "com.apple.TimeMachine.SupportsThisDevice", &[1]).await.ok();
+        
+        // Set max_size if specified
+        if let Some(max_size) = share.time_machine_max_size {
+            let max_size_bytes = max_size.to_le_bytes();
+            share.backend.set_xattr(&root_path, "com.apple.TimeMachine.MaxSize", &max_size_bytes).await.ok();
+        }
+        
+        tracing::info!(share = %share.name, uuid = %uuid, "Time Machine enabled");
+    }
+    
     let resp = TreeConnectResponse {
         structure_size: 16,
         share_type: if share.is_ipc {