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Prune unused UIDs from su policies

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topjohnwu
2022-05-18 01:55:58 -07:00
parent e11508f84d
commit 975b1a5e36
12 changed files with 165 additions and 80 deletions
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14
native/jni/zygisk/entry.cpp
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@@ -7,7 +7,6 @@
#include <base.hpp>
#include <daemon.hpp>
#include <magisk.hpp>
#include <db.hpp>
#include "zygisk.hpp"
#include "module.hpp"
@@ -313,8 +312,6 @@ static void magiskd_passthrough(int client) {
send_fd(client, is_64_bit ? app_process_64 : app_process_32);
}
atomic<int> cached_manager_app_id = -1;
extern bool uid_granted_root(int uid);
static void get_process_info(int client, const sock_cred *cred) {
int uid = read_int(client);
@@ -322,19 +319,10 @@ static void get_process_info(int client, const sock_cred *cred) {
uint32_t flags = 0;
// This function is called on every single zygote process specialization,
// so performance is critical. get_manager_app_id() is expensive as it goes
// through a SQLite query and potentially multiple filesystem stats, so we
// really want to cache its app ID value.
if (is_deny_target(uid, process)) {
flags |= PROCESS_ON_DENYLIST;
}
int manager_app_id = cached_manager_app_id;
if (manager_app_id < 0) {
manager_app_id = get_manager_app_id();
cached_manager_app_id = manager_app_id;
}
int manager_app_id = get_manager();
if (to_app_id(uid) == manager_app_id) {
flags |= PROCESS_IS_MAGISK_APP;
}