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Commit a0755bc3 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: 79f945c6

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



Change-Id: I55d7f13cd83d2103add7b0ab7fded7c9a36c07d0
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 341241aa 79f945c6

cmds/installd/InstalldNativeService.cpp

+28 −2
Original line number Diff line number Diff line
@@ -1957,17 +1957,43 @@ 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;