Merge "servicemanager: expose updatable-via-apex" am: 39301eae39 (3393a644) · Commits · e / os / android_frameworks_native-old

cmds/dumpsys/tests/dumpsys_test.cpp

+1 −0

Original line number	Diff line number	Diff line
		@@ -59,6 +59,7 @@ class ServiceManagerMock : public IServiceManager {
		MOCK_METHOD1(waitForService, sp<IBinder>(const String16&));
		MOCK_METHOD1(isDeclared, bool(const String16&));
		MOCK_METHOD1(getDeclaredInstances, Vector<String16>(const String16&));
		MOCK_METHOD1(updatableViaApex, std::optional<String16>(const String16&));
		protected:
		MOCK_METHOD0(onAsBinder, IBinder*());
		};

cmds/servicemanager/ServiceManager.cpp

+64 −15

Original line number	Diff line number	Diff line
		@@ -58,7 +58,12 @@ static bool forEachManifest(const std::function<bool(const ManifestWithDescripti
		return false;
		}

		static bool isVintfDeclared(const std::string& name) {
		struct AidlName {
		std::string package;
		std::string iface;
		std::string instance;

		static bool fill(const std::string& name, AidlName* aname) {
		size_t firstSlash = name.find('/');
		size_t lastDot = name.rfind('.', firstSlash);
		if (firstSlash == std::string::npos \|\| lastDot == std::string::npos) {
		@@ -66,14 +71,21 @@ static bool isVintfDeclared(const std::string& name) {
		<< "some.package.foo.IFoo/default) but got: " << name;
		return false;
		}
		const std::string package = name.substr(0, lastDot);
		const std::string iface = name.substr(lastDot+1, firstSlash-lastDot-1);
		const std::string instance = name.substr(firstSlash+1);
		aname->package = name.substr(0, lastDot);
		aname->iface = name.substr(lastDot + 1, firstSlash - lastDot - 1);
		aname->instance = name.substr(firstSlash + 1);
		return true;
		}
		};

		static bool isVintfDeclared(const std::string& name) {
		AidlName aname;
		if (!AidlName::fill(name, &aname)) return false;

		bool found = forEachManifest([&](const ManifestWithDescription& mwd) {
		if (mwd.manifest->hasAidlInstance(package, iface, instance)) {
		if (mwd.manifest->hasAidlInstance(aname.package, aname.iface, aname.instance)) {
		LOG(INFO) << "Found " << name << " in " << mwd.description << " VINTF manifest.";
		return true;
		return true; // break
		}
		return false; // continue
		});
		@@ -81,13 +93,34 @@ static bool isVintfDeclared(const std::string& name) {
		if (!found) {
		// Although it is tested, explicitly rebuilding qualified name, in case it
		// becomes something unexpected.
		LOG(ERROR) << "Could not find " << package << "." << iface << "/" << instance
		<< " in the VINTF manifest.";
		LOG(ERROR) << "Could not find " << aname.package << "." << aname.iface << "/"
		<< aname.instance << " in the VINTF manifest.";
		}

		return found;
		}

		static std::optional<std::string> getVintfUpdatableApex(const std::string& name) {
		AidlName aname;
		if (!AidlName::fill(name, &aname)) return std::nullopt;

		std::optional<std::string> updatableViaApex;

		forEachManifest([&](const ManifestWithDescription& mwd) {
		mwd.manifest->forEachInstance([&](const auto& manifestInstance) {
		if (manifestInstance.format() != vintf::HalFormat::AIDL) return true;
		if (manifestInstance.package() != aname.package) return true;
		if (manifestInstance.interface() != aname.iface) return true;
		if (manifestInstance.instance() != aname.instance) return true;
		updatableViaApex = manifestInstance.updatableViaApex();
		return false; // break (libvintf uses opposite convention)
		});
		return false; // continue
		});

		return updatableViaApex;
		}

		static std::vector<std::string> getVintfInstances(const std::string& interface) {
		size_t lastDot = interface.rfind('.');
		if (lastDot == std::string::npos) {
		@@ -388,6 +421,22 @@ binder::Status ServiceManager::getDeclaredInstances(const std::string& interface
		return Status::ok();
		}

		Status ServiceManager::updatableViaApex(const std::string& name,
		std::optional<std::string>* outReturn) {
		auto ctx = mAccess->getCallingContext();

		if (!mAccess->canFind(ctx, name)) {
		return Status::fromExceptionCode(Status::EX_SECURITY);
		}

		*outReturn = std::nullopt;

		#ifndef VENDORSERVICEMANAGER
		*outReturn = getVintfUpdatableApex(name);
		#endif
		return Status::ok();
		}

		void ServiceManager::removeRegistrationCallback(const wp<IBinder>& who,
		ServiceCallbackMap::iterator* it,
		bool* found) {

cmds/servicemanager/ServiceManager.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,8 @@ public:

		binder::Status isDeclared(const std::string& name, bool* outReturn) override;
		binder::Status getDeclaredInstances(const std::string& interface, std::vector<std::string>* outReturn) override;
		binder::Status updatableViaApex(const std::string& name,
		std::optional<std::string>* outReturn) override;
		binder::Status registerClientCallback(const std::string& name, const sp<IBinder>& service,
		const sp<IClientCallback>& cb) override;
		binder::Status tryUnregisterService(const std::string& name, const sp<IBinder>& binder) override;

libs/binder/IServiceManager.cpp

+9 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,7 @@ public:
		sp<IBinder> waitForService(const String16& name16) override;
		bool isDeclared(const String16& name) override;
		Vector<String16> getDeclaredInstances(const String16& interface) override;
		std::optional<String16> updatableViaApex(const String16& name) override;

		// for legacy ABI
		const String16& getInterfaceDescriptor() const override {
		@@ -388,4 +389,12 @@ Vector<String16> ServiceManagerShim::getDeclaredInstances(const String16& interf
		return res;
		}

		std::optional<String16> ServiceManagerShim::updatableViaApex(const String16& name) {
		std::optional<std::string> declared;
		if (!mTheRealServiceManager->updatableViaApex(String8(name).c_str(), &declared).isOk()) {
		return std::nullopt;
		}
		return declared ? std::optional<String16>(String16(declared.value().c_str())) : std::nullopt;
		}

		} // namespace android

libs/binder/aidl/android/os/IServiceManager.aidl

+5 −0

Original line number	Diff line number	Diff line
		@@ -107,6 +107,11 @@ interface IServiceManager {
		*/
		@utf8InCpp String[] getDeclaredInstances(@utf8InCpp String iface);

		/**
		* If updatable-via-apex, returns the APEX via which this is updated.
		*/
		@nullable @utf8InCpp String updatableViaApex(@utf8InCpp String name);

		/**
		* Request a callback when the number of clients of the service changes.
		* Used by LazyServiceRegistrar to dynamically stop services that have no clients.