Adding fuzzer for DrmManagerService
Fuzzing DrmManagerService using fuzzService API
Test: m drmserver_fuzzer && adb sync && adb shell /data/fuzz/x86_64/drmserver_fuzzer/drmserver_fuzzer
Bug: 232439428
Change-Id: I939fd452ca798619c2993e99e1b7318ee79326f4
diff --git a/drm/drmserver/Android.bp b/drm/drmserver/Android.bp
index df3a6a2..ab25c65 100644
--- a/drm/drmserver/Android.bp
+++ b/drm/drmserver/Android.bp
@@ -63,3 +63,39 @@
init_rc: ["drmserver.rc"],
}
+
+cc_fuzz {
+ name: "drmserver_fuzzer",
+
+ defaults: [
+ "service_fuzzer_defaults",
+ ],
+
+ srcs: [
+ "fuzzer/DrmFuzzer.cpp",
+ "DrmManagerService.cpp",
+ "DrmManager.cpp",
+ ],
+
+ static_libs: [
+ "libmediautils",
+ "liblog",
+ "libdl",
+ "libdrmframeworkcommon",
+ "libselinux",
+ "libstagefright_foundation",
+ ],
+
+ shared_libs: [
+ "libmediametrics",
+ ],
+
+ fuzz_config: {
+ libfuzzer_options: [
+ "max_len=50000",
+ ],
+ cc: [
+ "android-drm-team@google.com",
+ ],
+ },
+}
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diff --git a/drm/drmserver/DrmManagerService.h b/drm/drmserver/DrmManagerService.h
index f9b8bef..56201d9 100644
--- a/drm/drmserver/DrmManagerService.h
+++ b/drm/drmserver/DrmManagerService.h
@@ -141,6 +141,8 @@
virtual status_t dump(int fd, const Vector<String16>& args);
+ friend class DrmManagerServiceFuzzer;
+
private:
sp<DrmManager> mDrmManager;
};
diff --git a/drm/drmserver/fuzzer/DrmFuzzer.cpp b/drm/drmserver/fuzzer/DrmFuzzer.cpp
new file mode 100644
index 0000000..4b23679
--- /dev/null
+++ b/drm/drmserver/fuzzer/DrmFuzzer.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 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 <fuzzbinder/libbinder_driver.h>
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include "DrmManagerService.h"
+
+namespace android {
+class DrmManagerServiceFuzzer {
+public:
+ DrmManagerServiceFuzzer() {}
+
+ void fuzz(const uint8_t* data, size_t size) {
+ auto drmService = new DrmManagerService();
+ fuzzService(drmService, FuzzedDataProvider(data, size));
+ }
+};
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+ android::DrmManagerServiceFuzzer serviceFuzzer;
+ serviceFuzzer.fuzz(data, size);
+ return 0;
+}
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