Merge "Do not mount the whole Android/data and Android/obb anymore" into rvc-dev (765276b8) · Commits · e / os / android_frameworks_base

core/jni/com_android_internal_os_Zygote.cpp

+5 −15

Original line number	Diff line number	Diff line
		@@ -1555,22 +1555,15 @@ static void isolateJitProfile(JNIEnv* env, jobjectArray pkg_data_info_list,
		static void BindMountStorageToLowerFs(const userid_t user_id, const char* dir_name,
		const char* package, fail_fn_t fail_fn) {

		bool hasPackage = (package != nullptr);
		bool hasSdcardFs = IsFilesystemSupported("sdcardfs");
		std::string source;
		if (hasSdcardFs) {
		source = hasPackage ?
		StringPrintf("/mnt/runtime/default/emulated/%d/%s/%s", user_id, dir_name, package) :
		StringPrintf("/mnt/runtime/default/emulated/%d/%s", user_id, dir_name);
		source = StringPrintf("/mnt/runtime/default/emulated/%d/%s/%s", user_id, dir_name, package);
		} else {
		source = hasPackage ?
		StringPrintf("/mnt/pass_through/%d/emulated/%d/%s/%s",
		user_id, user_id, dir_name, package) :
		StringPrintf("/mnt/pass_through/%d/emulated/%d/%s", user_id, user_id, dir_name);
		source = StringPrintf("/mnt/pass_through/%d/emulated/%d/%s/%s",
		user_id, user_id, dir_name, package);
		}
		std::string target = hasPackage ?
		StringPrintf("/storage/emulated/%d/%s/%s", user_id, dir_name, package) :
		StringPrintf("/storage/emulated/%d/%s", user_id, dir_name);
		std::string target = StringPrintf("/storage/emulated/%d/%s/%s", user_id, dir_name, package);

		if (access(source.c_str(), F_OK) != 0) {
		fail_fn(CREATE_ERROR("Error accessing %s: %s", source.c_str(), strerror(errno)));
		@@ -1594,10 +1587,7 @@ static void BindMountStorageDirs(JNIEnv* env, jobjectArray pkg_data_info_list,
		int size = (pkg_data_info_list != nullptr) ? env->GetArrayLength(pkg_data_info_list) : 0;

		if (size == 0) {
		// App data isolation is not enabled for this process, so we bind mount to whole obb/ dir.
		BindMountStorageToLowerFs(user_id, "Android/obb", /* package */ nullptr, fail_fn);
		BindMountStorageToLowerFs(user_id, "Android/data", /* package */ nullptr, fail_fn);
		return;
		fail_fn(CREATE_ERROR("Data package list cannot be empty"));
		}

		// Bind mount each package obb directory