Implement SMB AFP_AfpInfo read/write via xattr (Phase 2.8 complete)

vendor/smb-server/src/fs/local.rs

@@ -428,6 +428,71 @@ impl ShareBackend for LocalFsBackend {
             case_sensitive: cfg!(any(target_os = "linux", target_os = "freebsd")),
         }
     }
+
+    async fn get_xattr(&self, path: &SmbPath, name: &str) -> SmbResult<Vec<u8>> {
+        let rel = to_rel_path(path);
+        let root = Arc::clone(&self.root);
+        let xattr_name = name.to_string();
+
+        spawn_blocking(move || {
+            let full_path = root.join(&rel);
+            xattr::get(full_path.as_std_path(), &xattr_name)
+                .map_err(|e| SmbError::Io(e.into()))
+        })
+        .await
+        .map_err(join_to_io)?
+    }
+
+    async fn set_xattr(&self, path: &SmbPath, name: &str, value: &[u8]) -> SmbResult<()> {
+        if self.read_only {
+            return Err(SmbError::AccessDenied);
+        }
+
+        let rel = to_rel_path(path);
+        let root = Arc::clone(&self.root);
+        let xattr_name = name.to_string();
+        let value = value.to_vec();
+
+        spawn_blocking(move || {
+            let full_path = root.join(&rel);
+            xattr::set(full_path.as_std_path(), &xattr_name, &value)
+                .map_err(|e| SmbError::Io(e.into()))
+        })
+        .await
+        .map_err(join_to_io)?
+    }
+
+    async fn remove_xattr(&self, path: &SmbPath, name: &str) -> SmbResult<()> {
+        if self.read_only {
+            return Err(SmbError::AccessDenied);
+        }
+
+        let rel = to_rel_path(path);
+        let root = Arc::clone(&self.root);
+        let xattr_name = name.to_string();
+
+        spawn_blocking(move || {
+            let full_path = root.join(&rel);
+            xattr::remove(full_path.as_std_path(), &xattr_name)
+                .map_err(|e| SmbError::Io(e.into()))
+        })
+        .await
+        .map_err(join_to_io)?
+    }
+
+    async fn list_xattrs(&self, path: &SmbPath) -> SmbResult<Vec<String>> {
+        let rel = to_rel_path(path);
+        let root = Arc::clone(&self.root);
+
+        spawn_blocking(move || {
+            let full_path = root.join(&rel);
+            xattr::list(full_path.as_std_path())
+                .map(|attrs| attrs.into_iter().map(|s| s.to_string()).collect())
+                .map_err(|e| SmbError::Io(e.into()))
+        })
+        .await
+        .map_err(join_to_io)?
+    }
 }
 
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