rust: Bind to NDK subset of libbinder
Test: cargo build --target aarch64-linux-android
Bug: 368303574
Change-Id: Id4db842d5dff195393e1ce563479c58b91e3e879
diff --git a/libs/binder/rust/src/binder.rs b/libs/binder/rust/src/binder.rs
index 23026e5..8c0501b 100644
--- a/libs/binder/rust/src/binder.rs
+++ b/libs/binder/rust/src/binder.rs
@@ -207,8 +207,10 @@
/// Corresponds to TF_ONE_WAY -- an asynchronous call.
pub const FLAG_ONEWAY: TransactionFlags = sys::FLAG_ONEWAY;
/// Corresponds to TF_CLEAR_BUF -- clear transaction buffers after call is made.
+#[cfg(not(android_ndk))]
pub const FLAG_CLEAR_BUF: TransactionFlags = sys::FLAG_CLEAR_BUF;
/// Set to the vendor flag if we are building for the VNDK, 0 otherwise
+#[cfg(not(android_ndk))]
pub const FLAG_PRIVATE_LOCAL: TransactionFlags = sys::FLAG_PRIVATE_LOCAL;
/// Internal interface of binder local or remote objects for making
@@ -221,7 +223,7 @@
fn is_binder_alive(&self) -> bool;
/// Indicate that the service intends to receive caller security contexts.
- #[cfg(not(android_vndk))]
+ #[cfg(not(any(android_vndk, android_ndk)))]
fn set_requesting_sid(&mut self, enable: bool);
/// Dump this object to the given file handle
@@ -346,7 +348,6 @@
panic!("Expected non-null class pointer from AIBinder_Class_define!");
}
sys::AIBinder_Class_setOnDump(class, Some(I::on_dump));
- sys::AIBinder_Class_setHandleShellCommand(class, None);
class
};
InterfaceClass(ptr)
@@ -714,7 +715,7 @@
pub struct BinderFeatures {
/// Indicates that the service intends to receive caller security contexts. This must be true
/// for `ThreadState::with_calling_sid` to work.
- #[cfg(not(android_vndk))]
+ #[cfg(not(any(android_vndk, android_ndk)))]
pub set_requesting_sid: bool,
// Ensure that clients include a ..BinderFeatures::default() to preserve backwards compatibility
// when new fields are added. #[non_exhaustive] doesn't work because it prevents struct
@@ -916,8 +917,12 @@
impl $native {
/// Create a new binder service.
pub fn new_binder<T: $interface + Sync + Send + 'static>(inner: T, features: $crate::BinderFeatures) -> $crate::Strong<dyn $interface> {
+ #[cfg(not(android_ndk))]
let mut binder = $crate::binder_impl::Binder::new_with_stability($native(Box::new(inner)), $stability);
- #[cfg(not(android_vndk))]
+ #[cfg(android_ndk)]
+ let mut binder = $crate::binder_impl::Binder::new($native(Box::new(inner)));
+
+ #[cfg(not(any(android_vndk, android_ndk)))]
$crate::binder_impl::IBinderInternal::set_requesting_sid(&mut binder, features.set_requesting_sid);
$crate::Strong::new(Box::new(binder))
}
diff --git a/libs/binder/rust/src/lib.rs b/libs/binder/rust/src/lib.rs
index f7f3f35..14493db 100644
--- a/libs/binder/rust/src/lib.rs
+++ b/libs/binder/rust/src/lib.rs
@@ -100,11 +100,11 @@
mod native;
mod parcel;
mod proxy;
-#[cfg(not(trusty))]
+#[cfg(not(any(trusty, android_ndk)))]
mod service;
-#[cfg(not(trusty))]
+#[cfg(not(any(trusty, android_ndk)))]
mod state;
-#[cfg(not(any(android_vendor, android_vndk)))]
+#[cfg(not(any(android_vendor, android_ndk, android_vndk)))]
mod system_only;
use binder_ndk_sys as sys;
@@ -114,15 +114,18 @@
pub use error::{ExceptionCode, IntoBinderResult, Status, StatusCode};
pub use parcel::{ParcelFileDescriptor, Parcelable, ParcelableHolder};
pub use proxy::{DeathRecipient, SpIBinder, WpIBinder};
-#[cfg(not(trusty))]
+#[cfg(not(any(trusty, android_ndk)))]
pub use service::{
add_service, check_interface, check_service, force_lazy_services_persist,
- get_declared_instances, get_interface, get_service, is_declared, is_handling_transaction,
- register_lazy_service, wait_for_interface, wait_for_service, LazyServiceGuard,
+ get_declared_instances, is_declared, is_handling_transaction, register_lazy_service,
+ wait_for_interface, wait_for_service, LazyServiceGuard,
};
-#[cfg(not(trusty))]
+#[cfg(not(any(trusty, android_ndk)))]
+#[allow(deprecated)]
+pub use service::{get_interface, get_service};
+#[cfg(not(any(trusty, android_ndk)))]
pub use state::{ProcessState, ThreadState};
-#[cfg(not(any(android_vendor, android_vndk)))]
+#[cfg(not(any(android_vendor, android_vndk, android_ndk)))]
pub use system_only::{delegate_accessor, Accessor, ConnectionInfo};
/// Binder result containing a [`Status`] on error.
@@ -134,9 +137,10 @@
pub use crate::binder::{
IBinderInternal, InterfaceClass, LocalStabilityType, Remotable, Stability, StabilityType,
ToAsyncInterface, ToSyncInterface, TransactionCode, TransactionFlags, VintfStabilityType,
- FIRST_CALL_TRANSACTION, FLAG_CLEAR_BUF, FLAG_ONEWAY, FLAG_PRIVATE_LOCAL,
- LAST_CALL_TRANSACTION,
+ FIRST_CALL_TRANSACTION, FLAG_ONEWAY, LAST_CALL_TRANSACTION,
};
+ #[cfg(not(android_ndk))]
+ pub use crate::binder::{FLAG_CLEAR_BUF, FLAG_PRIVATE_LOCAL};
pub use crate::binder_async::BinderAsyncRuntime;
pub use crate::error::status_t;
pub use crate::native::Binder;
diff --git a/libs/binder/rust/src/native.rs b/libs/binder/rust/src/native.rs
index c87cc94..9e1cfd6 100644
--- a/libs/binder/rust/src/native.rs
+++ b/libs/binder/rust/src/native.rs
@@ -14,9 +14,9 @@
* limitations under the License.
*/
-use crate::binder::{
- AsNative, Interface, InterfaceClassMethods, Remotable, Stability, TransactionCode,
-};
+#[cfg(not(android_ndk))]
+use crate::binder::Stability;
+use crate::binder::{AsNative, Interface, InterfaceClassMethods, Remotable, TransactionCode};
use crate::error::{status_result, status_t, Result, StatusCode};
use crate::parcel::{BorrowedParcel, Serialize};
use crate::proxy::SpIBinder;
@@ -76,14 +76,32 @@
/// This moves the `rust_object` into an owned [`Box`] and Binder will
/// manage its lifetime.
pub fn new(rust_object: T) -> Binder<T> {
- Self::new_with_stability(rust_object, Stability::default())
+ #[cfg(not(android_ndk))]
+ {
+ Self::new_with_stability(rust_object, Stability::default())
+ }
+ #[cfg(android_ndk)]
+ {
+ Self::new_unmarked(rust_object)
+ }
}
/// Create a new Binder remotable object with the given stability
///
/// This moves the `rust_object` into an owned [`Box`] and Binder will
/// manage its lifetime.
+ #[cfg(not(android_ndk))]
pub fn new_with_stability(rust_object: T, stability: Stability) -> Binder<T> {
+ let mut binder = Self::new_unmarked(rust_object);
+ binder.mark_stability(stability);
+ binder
+ }
+
+ /// Creates a new Binder remotable object with unset stability
+ ///
+ /// This is internal because normally we want to set the stability explicitly,
+ /// however for the NDK variant we cannot mark the stability.
+ fn new_unmarked(rust_object: T) -> Binder<T> {
let class = T::get_class();
let rust_object = Box::into_raw(Box::new(rust_object));
// Safety: `AIBinder_new` expects a valid class pointer (which we
@@ -93,9 +111,7 @@
// decremented via `AIBinder_decStrong` when the reference lifetime
// ends.
let ibinder = unsafe { sys::AIBinder_new(class.into(), rust_object as *mut c_void) };
- let mut binder = Binder { ibinder, rust_object };
- binder.mark_stability(stability);
- binder
+ Binder { ibinder, rust_object }
}
/// Set the extension of a binder interface. This allows a downstream
@@ -189,6 +205,7 @@
}
/// Mark this binder object with the given stability guarantee
+ #[cfg(not(android_ndk))]
fn mark_stability(&mut self, stability: Stability) {
match stability {
Stability::Local => self.mark_local_stability(),
@@ -215,7 +232,7 @@
/// Mark this binder object with local stability, which is vendor if we are
/// building for android_vendor and system otherwise.
- #[cfg(not(android_vendor))]
+ #[cfg(not(any(android_vendor, android_ndk)))]
fn mark_local_stability(&mut self) {
// Safety: Self always contains a valid `AIBinder` pointer, so we can
// always call this C API safely.
diff --git a/libs/binder/rust/src/parcel.rs b/libs/binder/rust/src/parcel.rs
index 3bfc425..485b0bd 100644
--- a/libs/binder/rust/src/parcel.rs
+++ b/libs/binder/rust/src/parcel.rs
@@ -197,6 +197,7 @@
// Data serialization methods
impl<'a> BorrowedParcel<'a> {
/// Data written to parcelable is zero'd before being deleted or reallocated.
+ #[cfg(not(android_ndk))]
pub fn mark_sensitive(&mut self) {
// Safety: guaranteed to have a parcel object, and this method never fails
unsafe { sys::AParcel_markSensitive(self.as_native()) }
@@ -342,6 +343,7 @@
impl Parcel {
/// Data written to parcelable is zero'd before being deleted or reallocated.
+ #[cfg(not(android_ndk))]
pub fn mark_sensitive(&mut self) {
self.borrowed().mark_sensitive()
}
diff --git a/libs/binder/rust/src/proxy.rs b/libs/binder/rust/src/proxy.rs
index 04f1517..593d12c 100644
--- a/libs/binder/rust/src/proxy.rs
+++ b/libs/binder/rust/src/proxy.rs
@@ -298,7 +298,7 @@
unsafe { sys::AIBinder_isAlive(self.as_native()) }
}
- #[cfg(not(android_vndk))]
+ #[cfg(not(any(android_vndk, android_ndk)))]
fn set_requesting_sid(&mut self, enable: bool) {
// Safety: `SpIBinder` guarantees that `self` always contains a valid
// pointer to an `AIBinder`.
diff --git a/libs/binder/rust/src/service.rs b/libs/binder/rust/src/service.rs
index 29dd8e1..f4fdcf5 100644
--- a/libs/binder/rust/src/service.rs
+++ b/libs/binder/rust/src/service.rs
@@ -176,6 +176,7 @@
/// seconds if it doesn't yet exist.
#[deprecated = "this polls 5s, use wait_for_interface or check_interface"]
pub fn get_interface<T: FromIBinder + ?Sized>(name: &str) -> Result<Strong<T>> {
+ #[allow(deprecated)]
interface_cast(get_service(name))
}