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Use app_dir to detect systemui instead

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uid may be shared by other apps (e.g., in MIUI, systemui's uid
is 1000 and shared by many system apps).
This commit is contained in:
LoveSy 2023-03-17 10:01:22 +08:00 committed by John Wu
parent e893c13cf1
commit 07c22ccd39
4 changed files with 7 additions and 7 deletions
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1
native/src/zygisk/deny/deny.hpp
View File

@ -49,5 +49,4 @@ void ls_list(int client);
bool is_deny_target(int uid, std::string_view process);
void revert_unmount();
extern int sys_ui_app_id;
extern std::atomic<bool> denylist_enforced;

4
native/src/zygisk/deny/utils.cpp
View File

@ -27,8 +27,6 @@ static unique_ptr<map<string, set<string, StringCmp>, StringCmp>> pkg_to_procs_;
static unique_ptr<map<int, set<string_view>>> app_id_to_pkgs_;
#define app_id_to_pkgs (*app_id_to_pkgs_)
int sys_ui_app_id = -1;
// Locks the data structures above
static pthread_mutex_t data_lock = PTHREAD_MUTEX_INITIALIZER;
@ -58,8 +56,6 @@ static void rescan_apps() {
if (auto it = pkg_to_procs.find(entry->d_name); it != pkg_to_procs.end()) {
app_id_to_pkgs[app_id].insert(it->first);
}
if (entry->d_name == "com.android.systemui"sv)
sys_ui_app_id = app_id;
}
} else {
close(dfd);

2
native/src/zygisk/entry.cpp
View File

@ -306,8 +306,6 @@ static void get_process_info(int client, const sock_cred *cred) {
int manager_app_id = get_manager();
if (to_app_id(uid) == manager_app_id) {
flags |= PROCESS_IS_MAGISK_APP;
} else if (to_app_id(uid) == sys_ui_app_id) {
flags |= PROCESS_IS_SYS_UI;
}
if (denylist_enforced) {
flags |= DENYLIST_ENFORCING;

7
native/src/zygisk/hook.cpp
View File

@ -604,6 +604,13 @@ void HookContext::app_specialize_pre() {
vector<int> module_fds;
int fd = remote_get_info(args.app->uid, process, &info_flags, module_fds);
if (args.app->app_data_dir) {
const auto *app_data_dir = env->GetStringUTFChars(args.app->app_data_dir, nullptr);
if (std::string_view(app_data_dir).ends_with("/com.android.systemui")) {
info_flags |= PROCESS_IS_SYS_UI;
}
env->ReleaseStringUTFChars(args.app->app_data_dir, app_data_dir);
}
if ((info_flags & UNMOUNT_MASK) == UNMOUNT_MASK) {
ZLOGI("[%s] is on the denylist\n", process);
flags[DO_REVERT_UNMOUNT] = true;