Unset FDSan tag when converting handle into other types
Bug: 359100544
Test: atest libnativewindow_rs-internal_test
Change-Id: Ib80d14277d9f695615fa0f07459d5c0bce4aeab9
diff --git a/libs/nativewindow/rust/src/handle.rs b/libs/nativewindow/rust/src/handle.rs
index ee70e3f..2b08c1b 100644
--- a/libs/nativewindow/rust/src/handle.rs
+++ b/libs/nativewindow/rust/src/handle.rs
@@ -85,6 +85,12 @@
/// Destroys the `NativeHandle`, taking ownership of the file descriptors it contained.
pub fn into_fds(self) -> Vec<OwnedFd> {
+ // Unset FDSan tag since this `native_handle_t` is no longer the owner of the file
+ // descriptors after this function.
+ // SAFETY: Our wrapped `native_handle_t` pointer is always valid.
+ unsafe {
+ ffi::native_handle_unset_fdsan_tag(self.as_ref());
+ }
let fds = self.data()[..self.fd_count()]
.iter()
.map(|fd| {
@@ -261,6 +267,29 @@
}
#[test]
+ fn to_fds() {
+ let file = File::open("/dev/null").unwrap();
+ let original = NativeHandle::new(vec![file.into()], &[42]).unwrap();
+ assert_eq!(original.ints(), &[42]);
+ assert_eq!(original.fds().len(), 1);
+
+ let fds = original.into_fds();
+ assert_eq!(fds.len(), 1);
+ }
+
+ #[test]
+ fn to_aidl() {
+ let file = File::open("/dev/null").unwrap();
+ let original = NativeHandle::new(vec![file.into()], &[42]).unwrap();
+ assert_eq!(original.ints(), &[42]);
+ assert_eq!(original.fds().len(), 1);
+
+ let aidl = AidlNativeHandle::from(original);
+ assert_eq!(&aidl.ints, &[42]);
+ assert_eq!(aidl.fds.len(), 1);
+ }
+
+ #[test]
fn to_from_aidl() {
let file = File::open("/dev/null").unwrap();
let original = NativeHandle::new(vec![file.into()], &[42]).unwrap();