Adding rust lib for random parcel
Adding a wrapper over libbinder_random_parcel to be used
by rust fuzzers.
Bug: 164122727
Test: m libbinder_random_parcel_rs
Change-Id: I5acd139ce2b219f44f92e089951bb92613f85917
diff --git a/libs/binder/rust/src/lib.rs b/libs/binder/rust/src/lib.rs
index 195d9ac..a0e61d9 100644
--- a/libs/binder/rust/src/lib.rs
+++ b/libs/binder/rust/src/lib.rs
@@ -148,4 +148,5 @@
pub use crate::binder::AsNative;
pub use crate::proxy::unstable_api::new_spibinder;
pub use crate::sys::AIBinder;
+ pub use crate::sys::AParcel;
}
diff --git a/libs/binder/rust/tests/parcel_fuzzer/random_parcel/Android.bp b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/Android.bp
new file mode 100644
index 0000000..6fe4fcd
--- /dev/null
+++ b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/Android.bp
@@ -0,0 +1,50 @@
+package {
+ // See: http://go/android-license-faq
+ default_applicable_licenses: ["frameworks_native_license"],
+}
+
+rust_bindgen {
+ name: "libbinder_random_parcel_bindgen",
+ crate_name: "binder_random_parcel_bindgen",
+ host_supported: true,
+ wrapper_src: "wrappers/RandomParcelWrapper.hpp",
+ source_stem: "bindings",
+ visibility: [":__subpackages__"],
+ bindgen_flags: [
+ "--size_t-is-usize",
+ "--allowlist-function",
+ "createRandomParcel",
+ ],
+ shared_libs: [
+ "libc++",
+ "libbinder_ndk",
+ ],
+ rustlibs: [
+ "libbinder_rs",
+ ],
+}
+
+rust_library {
+ name: "libbinder_random_parcel_rs",
+ crate_name: "binder_random_parcel_rs",
+ host_supported: true,
+ srcs: [
+ "src/lib.rs",
+ ],
+ shared_libs: [
+ "libbinder",
+ "libutils",
+ "libcutils",
+ "libc++",
+ ],
+ static_libs: [
+ "libbinder_create_parcel",
+ "libbinder_random_parcel",
+ ],
+ rustlibs: [
+ "libbinder_rs",
+ "libbinder_random_parcel_bindgen",
+ ],
+ lints: "none",
+ clippy_lints: "none",
+}
diff --git a/libs/binder/rust/tests/parcel_fuzzer/random_parcel/src/lib.rs b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/src/lib.rs
new file mode 100644
index 0000000..ee3b6f8
--- /dev/null
+++ b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/src/lib.rs
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use binder::binder_impl::Parcel;
+use binder::unstable_api::{AParcel, AsNative};
+use binder_random_parcel_bindgen::createRandomParcel;
+use std::os::raw::c_void;
+
+/// This API creates a random parcel to be used by fuzzers
+pub fn create_random_parcel(fuzzer_data: &[u8]) -> Parcel {
+ let mut parcel = Parcel::new();
+ let aparcel_ptr: *mut AParcel = parcel.as_native_mut();
+ let ptr = aparcel_ptr as *mut c_void;
+ unsafe {
+ // Safety: `Parcel::as_native_mut` and `slice::as_ptr` always
+ // return valid pointers.
+ createRandomParcel(ptr, fuzzer_data.as_ptr(), fuzzer_data.len());
+ }
+ parcel
+}
diff --git a/libs/binder/rust/tests/parcel_fuzzer/random_parcel/wrappers/RandomParcelWrapper.hpp b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/wrappers/RandomParcelWrapper.hpp
new file mode 100644
index 0000000..167a64e
--- /dev/null
+++ b/libs/binder/rust/tests/parcel_fuzzer/random_parcel/wrappers/RandomParcelWrapper.hpp
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <cstdint>
+#include <cstddef>
+
+extern "C" {
+ // This API is used by rust to fill random parcel.
+ void createRandomParcel(void* aParcel, const uint8_t* data, size_t len);
+}
\ No newline at end of file
diff --git a/libs/binder/tests/parcel_fuzzer/rust_interface/Android.bp b/libs/binder/tests/parcel_fuzzer/rust_interface/Android.bp
new file mode 100644
index 0000000..b48dc27
--- /dev/null
+++ b/libs/binder/tests/parcel_fuzzer/rust_interface/Android.bp
@@ -0,0 +1,24 @@
+package {
+ default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_library_static {
+ name: "libbinder_create_parcel",
+ host_supported: true,
+ target: {
+ darwin: {
+ enabled: false,
+ },
+ },
+ srcs: [
+ "RandomParcelWrapper.cpp",
+ ],
+ shared_libs: [
+ "libbase",
+ "libbinder",
+ "libbinder_ndk",
+ ],
+ static_libs: [
+ "libbinder_random_parcel",
+ ],
+}
diff --git a/libs/binder/tests/parcel_fuzzer/rust_interface/RandomParcelWrapper.cpp b/libs/binder/tests/parcel_fuzzer/rust_interface/RandomParcelWrapper.cpp
new file mode 100644
index 0000000..2fb7820
--- /dev/null
+++ b/libs/binder/tests/parcel_fuzzer/rust_interface/RandomParcelWrapper.cpp
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android/binder_libbinder.h>
+#include <android/binder_parcel.h>
+#include <fuzzbinder/random_parcel.h>
+
+extern "C" {
+
+void createRandomParcel(void* aParcel, const uint8_t* data, size_t len) {
+ CHECK_NE(aParcel, nullptr);
+ AParcel* parcel = static_cast<AParcel*>(aParcel);
+ FuzzedDataProvider provider(data, len);
+ android::RandomParcelOptions options;
+
+ android::Parcel* platformParcel = AParcel_viewPlatformParcel(parcel);
+ fillRandomParcel(platformParcel, std::move(provider), &options);
+}
+
+} // extern "C"
\ No newline at end of file