android/SukiSU-Ultra
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kernel: use sys_enter tracepoint for sucompat (#533)

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* use sys_enter tracepoint for sucompat

* update sucompat rules

* clean tif mark

* mark tif after load allow list

* clear all tif first, then mark target

* Fix shell su

* allow when escape

* fix bugs

* kernel: Resolve logical inconsistencies

---------

Co-authored-by: Ylarod <me@ylarod.cn>
Co-authored-by: weishu <twsxtd@gmail.com>
This commit is contained in:
ShirkNeko
2025-11-06 12:45:37 +08:00
parent ee9c20f62a
commit 71353a70d4
16 changed files with 262 additions and 302 deletions
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21
kernel/ksud.c
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@@ -54,7 +54,7 @@ static void stop_vfs_read_hook(void);
static void stop_execve_hook(void);
static void stop_input_hook(void);
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
static struct work_struct stop_vfs_read_work;
static struct work_struct stop_execve_hook_work;
static struct work_struct stop_input_hook_work;
@@ -83,6 +83,9 @@ void on_post_fs_data(void)
done = true;
pr_info("%s!\n", __func__);
ksu_load_allow_list();
extern void ksu_mark_running_process(void);
pr_info("mark tif for running process\n");
ksu_mark_running_process();
ksu_observer_init();
// sanity check, this may influence the performance
stop_input_hook();
@@ -298,7 +301,7 @@ static ssize_t read_iter_proxy(struct kiocb *iocb, struct iov_iter *to)
int ksu_handle_vfs_read(struct file **file_ptr, char __user **buf_ptr,
size_t *count_ptr, loff_t **pos)
{
#ifndef CONFIG_KSU_KPROBES_HOOK
#ifndef KSU_KPROBES_HOOK
if (!ksu_vfs_read_hook) {
return 0;
}
@@ -411,7 +414,7 @@ static bool is_volumedown_enough(unsigned int count)
int ksu_handle_input_handle_event(unsigned int *type, unsigned int *code,
int *value)
{
#ifndef CONFIG_KSU_KPROBES_HOOK
#ifndef KSU_KPROBES_HOOK
if (!ksu_input_hook) {
return 0;
}
@@ -453,7 +456,7 @@ bool ksu_is_safe_mode()
return false;
}
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
static int sys_execve_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
/*
@@ -670,7 +673,7 @@ int __maybe_unused ksu_handle_compat_execve_ksud(const char __user *filename_use
static void stop_vfs_read_hook(void)
{
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
bool ret = schedule_work(&stop_vfs_read_work);
pr_info("unregister vfs_read kprobe: %d!\n", ret);
#else
@@ -681,7 +684,7 @@ static void stop_vfs_read_hook(void)
static void stop_execve_hook(void)
{
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
bool ret = schedule_work(&stop_execve_hook_work);
pr_info("unregister execve kprobe: %d!\n", ret);
#else
@@ -696,7 +699,7 @@ static void stop_execve_hook(void)
static void stop_input_hook(void)
{
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
static bool input_hook_stopped = false;
if (input_hook_stopped) {
return;
@@ -714,7 +717,7 @@ static void stop_input_hook(void)
// ksud: module support
void ksu_ksud_init(void)
{
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
int ret;
ret = register_kprobe(&execve_kp);
@@ -734,7 +737,7 @@ void ksu_ksud_init(void)
void ksu_ksud_exit(void)
{
#ifdef CONFIG_KSU_KPROBES_HOOK
#ifdef KSU_KPROBES_HOOK
unregister_kprobe(&execve_kp);
// this should be done before unregister vfs_read_kp
// unregister_kprobe(&vfs_read_kp);