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Merge "Do not mount the whole Android/data and Android/obb anymore" into rvc-dev

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TreeHugger Robot
2020-04-23 13:49:24 +00:00
committed by Android (Google) Code Review
parent 5d685f52f3 3a3d01771b
commit 765276b841
1 changed files with 5 additions and 15 deletions
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20
core/jni/com_android_internal_os_Zygote.cpp
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@@ -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