kernel: Rewrite the kernel source code (#554)

* clean unused header

* on_module_mounted in ksud.c

* refact: use app_profile

* unified hook manager

* add zygote to hook target

* move reboot hook to supercall.c

* refactor: kernel_umount setuid_hook

* update mark rules, add init mark tracker

* remove reboot from check_syscall_fastpath

* update setuid_hook, remove uneeded sucompat enable

* log freely

* kernel: Migrate kprobe hook configuration items

* kernel: fix build

* cli: add ksud debug mark

* Fix rustfmt warning

---------

Co-authored-by: Ylarod <me@ylarod.cn>
Co-authored-by: Wang Han <416810799@qq.com>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

kernel/syscall_hook_manager.h

@@ -0,0 +1,40 @@
+#ifndef __KSU_H_HOOK_MANAGER
+#define __KSU_H_HOOK_MANAGER
+
+#include <linux/version.h>
+#include <linux/sched.h>
+#include <linux/thread_info.h>
+
+// Hook manager initialization and cleanup
+void ksu_syscall_hook_manager_init(void);
+void ksu_syscall_hook_manager_exit(void);
+
+// Process marking for tracepoint
+void ksu_mark_all_process(void);
+void ksu_unmark_all_process(void);
+void ksu_mark_running_process(void);
+
+// Per-task mark operations
+int ksu_get_task_mark(pid_t pid);
+int ksu_set_task_mark(pid_t pid, bool mark);
+
+
+static inline void ksu_set_task_tracepoint_flag(struct task_struct *t)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 11, 0)
+    set_task_syscall_work(t, SYSCALL_TRACEPOINT);
+#else
+    set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
+#endif
+}
+
+static inline void ksu_clear_task_tracepoint_flag(struct task_struct *t)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 11, 0)
+    clear_task_syscall_work(t, SYSCALL_TRACEPOINT);
+#else
+    clear_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
+#endif
+}
+
+#endif