KernelSU/kernel/ksud.h

#ifndef __KSU_H_KSUD
#define __KSU_H_KSUD

#include <linux/types.h>

#define KSUD_PATH "/data/adb/ksud"

void on_post_fs_data(void);

bool ksu_is_safe_mode(void);

extern u32 ksu_devpts_sid;

#endif
kernel: precise trigger timing of post-fs-data (#118) * kernel: add report_event cmd * ksud: report event * kernel: trigger on_post_fs_data * ksud: comment unused code * [skip ci] run clang-format Signed-off-by: Ylarod <me@ylarod.cn> * ci: use custom key to sign official bootimgs * format ksud * reject non root * remove Signed-off-by: Ylarod <me@ylarod.cn> 2023-01-26 11:29:02 +08:00			`#ifndef __KSU_H_KSUD`
			`#define __KSU_H_KSUD`

kernel: use library import 2024-04-27 09:55:16 +08:00			`#include <linux/types.h>`

kernel, ksud: collect binaries into /data/adb/ksu (#161) 2023-02-01 05:58:58 -04:00			`#define KSUD_PATH "/data/adb/ksud"`

kernel: precise trigger timing of post-fs-data (#118) * kernel: add report_event cmd * ksud: report event * kernel: trigger on_post_fs_data * ksud: comment unused code * [skip ci] run clang-format Signed-off-by: Ylarod <me@ylarod.cn> * ci: use custom key to sign official bootimgs * format ksud * reject non root * remove Signed-off-by: Ylarod <me@ylarod.cn> 2023-01-26 11:29:02 +08:00			`void on_post_fs_data(void);`

kernel: press KEY_VOLUMEDOWN over 2 seconds will enter safemode and disable all modules Co-authored-by: Ylarod <me@ylarod.cn> 2023-02-13 21:23:18 +07:00			`bool ksu_is_safe_mode(void);`

kernel: transition devpts in kernel 2024-05-08 21:15:41 +08:00			`extern u32 ksu_devpts_sid;`

Hook improvements (take 2) (#563) Hi @tiann. Thanks for the great project, I had great fun playing around with it. This PR mainly tries to further minimize the possible delays caused by KernelSU hooking. There are 3 major changes: - Processes with 0 < UID < 2000 are blocked straight-up before going through the allow_list. I don't see any need for such processes to be interested in root, and this allows returning early before going through a more expensive lookup. If there's an expected breakage due to this change, I'll remove it. Let me know. - A page-sized (4K) bitmap is added. This allows O(1) lookup for UID <= 32767. This speeds up `ksu_is_allow_uid()` by about 4.8x by sacrificing a 4K memory. IMHO, a good trade-off. Most notably, this reduces the 99.999% result previously from worrying milliseconds scale to microseconds scale. For UID > 32767, another page-sized (4K) sequential array is used to cache allow_list. Compared to the previous PR #557, this new approach gives another nice 25% performance boost in average, 63-96% boost in worst cases. Benchmark results are available at https://docs.google.com/spreadsheets/d/1w_tO1zRLPNMFRer49pL1TQfL6ndEhilRrDU1XFIcWXY/edit?usp=sharing Thanks! --------- Signed-off-by: Juhyung Park <qkrwngud825@gmail.com> 2023-06-16 20:53:15 +09:00			`#endif`