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kernel: remove unused CONFIG guard becuase GKI kernel enable kprobe by default

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weishu
2025-02-16 21:38:59 +08:00
parent 4593ae81c7
commit 500ff9bcbc
4 changed files with 0 additions and 60 deletions
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44
kernel/ksud.c
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@@ -47,15 +47,9 @@ static void stop_vfs_read_hook();
static void stop_execve_hook();
static void stop_input_hook();
#ifdef CONFIG_KPROBES
static struct work_struct stop_vfs_read_work;
static struct work_struct stop_execve_hook_work;
static struct work_struct stop_input_hook_work;
#else
bool ksu_vfs_read_hook __read_mostly = true;
bool ksu_execveat_hook __read_mostly = true;
bool ksu_input_hook __read_mostly = true;
#endif
u32 ksu_devpts_sid;
@@ -150,11 +144,6 @@ int ksu_handle_execveat_ksud(int *fd, struct filename **filename_ptr,
struct user_arg_ptr *argv,
struct user_arg_ptr *envp, int *flags)
{
#ifndef CONFIG_KPROBES
if (!ksu_execveat_hook) {
return 0;
}
#endif
struct filename *filename;
static const char app_process[] = "/system/bin/app_process";
@@ -306,11 +295,6 @@ 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_KPROBES
if (!ksu_vfs_read_hook) {
return 0;
}
#endif
struct file *file;
char __user *buf;
size_t count;
@@ -419,11 +403,6 @@ static bool is_volumedown_enough(unsigned int count)
int ksu_handle_input_handle_event(unsigned int *type, unsigned int *code,
int *value)
{
#ifndef CONFIG_KPROBES
if (!ksu_input_hook) {
return 0;
}
#endif
if (*type == EV_KEY && *code == KEY_VOLUMEDOWN) {
int val = *value;
pr_info("KEY_VOLUMEDOWN val: %d\n", val);
@@ -461,8 +440,6 @@ bool ksu_is_safe_mode()
return false;
}
#ifdef CONFIG_KPROBES
static int sys_execve_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
struct pt_regs *real_regs = PT_REAL_REGS(regs);
@@ -515,7 +492,6 @@ static struct kprobe vfs_read_kp = {
.pre_handler = sys_read_handler_pre,
};
static struct kprobe input_event_kp = {
.symbol_name = "input_event",
.pre_handler = input_handle_event_handler_pre,
@@ -535,28 +511,17 @@ static void do_stop_input_hook(struct work_struct *work)
{
unregister_kprobe(&input_event_kp);
}
#endif
static void stop_vfs_read_hook()
{
#ifdef CONFIG_KPROBES
bool ret = schedule_work(&stop_vfs_read_work);
pr_info("unregister vfs_read kprobe: %d!\n", ret);
#else
ksu_vfs_read_hook = false;
pr_info("stop vfs_read_hook\n");
#endif
}
static void stop_execve_hook()
{
#ifdef CONFIG_KPROBES
bool ret = schedule_work(&stop_execve_hook_work);
pr_info("unregister execve kprobe: %d!\n", ret);
#else
ksu_execveat_hook = false;
pr_info("stop execve_hook\n");
#endif
}
static void stop_input_hook()
@@ -566,19 +531,13 @@ static void stop_input_hook()
return;
}
input_hook_stopped = true;
#ifdef CONFIG_KPROBES
bool ret = schedule_work(&stop_input_hook_work);
pr_info("unregister input kprobe: %d!\n", ret);
#else
ksu_input_hook = false;
pr_info("stop input_hook\n");
#endif
}
// ksud: module support
void ksu_ksud_init()
{
#ifdef CONFIG_KPROBES
int ret;
ret = register_kprobe(&execve_kp);
@@ -593,15 +552,12 @@ void ksu_ksud_init()
INIT_WORK(&stop_vfs_read_work, do_stop_vfs_read_hook);
INIT_WORK(&stop_execve_hook_work, do_stop_execve_hook);
INIT_WORK(&stop_input_hook_work, do_stop_input_hook);
#endif
}
void ksu_ksud_exit()
{
#ifdef CONFIG_KPROBES
unregister_kprobe(&execve_kp);
// this should be done before unregister vfs_read_kp
// unregister_kprobe(&vfs_read_kp);
unregister_kprobe(&input_event_kp);
#endif
}