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Commit 17c7f514 authored by Samiul Islam's avatar Samiul Islam Committed by Automerger Merge Worker
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Merge "Include cache files from sdk data when cleaning using freeCache" into...

Merge "Include cache files from sdk data when cleaning using freeCache" into tm-dev am: 88b6d17d am: 3e178c89

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18280904



Change-Id: Ifcfbbf950566b5c0cafcffa885774a7a22adc91c
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents eaef9b0e 3e178c89
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+28 −2
Original line number Diff line number Diff line
@@ -1960,17 +1960,43 @@ binder::Status InstalldNativeService::freeCache(const std::optional<std::string>
#endif // GRANULAR_LOCKS
            FTS *fts;
            FTSENT *p;

            // Create a list of data paths whose children have cache directories
            auto ce_path = create_data_user_ce_path(uuid_, userId);
            auto de_path = create_data_user_de_path(uuid_, userId);
            auto media_path = findDataMediaPath(uuid, userId) + "/Android/data/";
            char *argv[] = { (char*) ce_path.c_str(), (char*) de_path.c_str(),
                    (char*) media_path.c_str(), nullptr };
            auto ce_sdk_path = create_data_misc_sdk_sandbox_path(uuid_, /*isCeData=*/true, userId);
            auto de_sdk_path = create_data_misc_sdk_sandbox_path(uuid_, /*isCeData=*/false, userId);

            std::vector<std::string> dataPaths = {ce_path, de_path, media_path};
            foreach_subdir(ce_sdk_path, [&ce_sdk_path, &dataPaths](const std::string subDir) {
                const auto fullpath = ce_sdk_path + "/" + subDir;
                dataPaths.push_back(fullpath);
            });
            foreach_subdir(de_sdk_path, [&de_sdk_path, &dataPaths](const std::string subDir) {
                const auto fullpath = de_sdk_path + "/" + subDir;
                dataPaths.push_back((char*)fullpath.c_str());
            });

            char* argv[dataPaths.size() + 1];
            for (unsigned int i = 0; i < dataPaths.size(); i++) {
                argv[i] = (char*)dataPaths[i].c_str();
            }
            argv[dataPaths.size()] = nullptr;

            if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, nullptr))) {
                return error("Failed to fts_open");
            }
            while ((p = fts_read(fts)) != nullptr) {
                if (p->fts_info == FTS_D && p->fts_level == 1) {
                    uid_t uid = p->fts_statp->st_uid;

                    // If uid belongs to sdk sandbox, then the cache should be attributed to the
                    // original client app.
                    const auto client_uid = multiuser_convert_sdk_sandbox_to_app_uid(uid);
                    const bool isSandboxUid = (client_uid != (uid_t)-1);
                    if (isSandboxUid) uid = client_uid;

                    if (multiuser_get_app_id(uid) == AID_MEDIA_RW) {
                        uid = (multiuser_get_app_id(p->fts_statp->st_gid) - AID_EXT_GID_START)
                                + AID_APP_START;