15 Commits

Author SHA1 Message Date
backslashxx
029ae8d389 kernel: expose umount list to ioctl interface (#2950)
This idea is borrowed from simonpunk's susfs4ksu.
What we see here is that, yeah well, lets just have userspace send us
what it
wants unmounted, this is better than hardcoding everything.

This also solves that issue where MNT_DETACH fails, as long as we send
unmountables in proper order.

A small anti-duplicate mechanism is also added.

While in-kernel umount is a bit worse than zygisk-provider-based ones,
this can still
serve as a healthy alternative.

---------

- Remove duplicate checks

Signed-off-by: backslashxx <118538522+backslashxx@users.noreply.github.com>
Co-authored-by: weishu <twsxtd@gmail.com>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
2025-11-18 12:36:42 +08:00
Wang Han
58c8289890 kernel/ksud: Fix KSU_IOCTL_NUKE_EXT4_SYSFS definition 2025-11-18 12:17:00 +08:00
weishu
1d1ce396d3 kernel: Add nuke_ext4_sysfs interface 2025-11-18 12:12:06 +08:00
ShirkNeko
548258f922 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>
2025-11-09 01:14:26 +08:00
ShirkNeko
18ad2afadb Reworking fdwrapper
Co-authored-by: 5ec1cff <ewtqyqyewtqyqy@gmail.com>
Co-authored-by: 5ec1cff <56485584+5ec1cff@users.noreply.github.com>
Co-authored-by: Ylarod <me@ylarod.cn>
2025-11-08 19:03:14 +08:00
Ylarod
776bcc4d5d rename to proxy_file 2025-11-08 11:36:15 +08:00
ShirkNeko
9b209765c4 kernel: Implementing editable, removable mount points 2025-11-07 12:16:42 +08:00
5ec1cff
826661dffb feature: add devpts fd wrapper (#21)
This feature is intended to resolve devpts problem.
2025-11-06 23:56:53 +08:00
ShirkNeko
e6436b340c kernel: clean headers
Co-authored-by: weishu <twsxtd@gmail.com>
2025-11-06 13:08:01 +08:00
ShirkNeko
0ce7bc2627 kernel: Migrate manual_su to ioctl 2025-11-06 02:52:14 +08:00
ShirkNeko
d286f49e11 [skip ci]kernel: Migrating KPM to ioctl 2025-11-04 00:52:13 +08:00
Ylarod
8ebe60ca04 update ioctl macro (#2850) 2025-11-02 20:15:55 +08:00
ShirkNeko
47bcc956a3 fix lot (#518)
* refact: use feature subsystem

* use 64bit feature

* fix

* add fixme

* add feature max to get_info

* use 32bit feature id

* allow root to get/set feature

* more clean perm_check functions

* fix

* add feature command to ksud

kernel: do not expose perm checker

* fix security_task_fix_setuid_handler_pre

* add android16-6.12 ci

* manager: add kernel_umount switch

Co-authored-by: YuKongA <70465933+YuKongA@users.noreply.github.com>

* manager: Reinstate the LKM selection function

* kernel: add name and print command value

- Optimise sulog log display

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

* fix

* ksud: clippy

---------

Co-authored-by: Ylarod <me@ylarod.cn>
Co-authored-by: YuKongA <70465933+YuKongA@users.noreply.github.com>
Co-authored-by: weishu <twsxtd@gmail.com>
2025-11-02 20:01:24 +08:00
ShirkNeko
bd0b07cba9 kernel: Add sulog records for supercalls 2025-11-02 03:04:35 +08:00
ShirkNeko
320e08b8fb new supercall impl (#511)
* refactor: replace throne tracker with ksud token

* use snprintf

* refactor: new supercall impl

- Import the sukisu command

* disable seccomp for supercall users

* kernel: fmt clear

* kernel: Enable macro protection for sulog

- Only enabled on kernel versions greater than 5.10.245

* kernel: Refactor kprobe hooks and implement LSM hooks for improved security handling

* debug mode

* kernel: Add functionality to generate and validate authentication tokens for cmd_su

* kernel: Simplified manual SU command processing for code

* kernel: replace renameat hook with fsnotify

* Revert "refactor: replace throne tracker with ksud token"

This reverts commit aa2cbbf9cd.

* kernel: fix compile

* kernel: fix compile below 6.0

* Fix compile err; Add become_manager

* kernel: install fd for manager automaticlly

- extend to import the corresponding command

* manager: new supercall impl

* temp changes for ksud

* ksud: fix compile

* fix wrong opcode

* kernel: fix compile

* kernel: Fixed hook type and KPM status retrieval errors

* kernel: Fixed potential null pointer issue with current->mm in kernel version 5.10

When calling get_full_comm() within system call hooks, current->mm may be null (prctl). A fallback mechanism for current->comm must be added beforehand to prevent null pointer dereferences when accessing mm->arg_start/arg_end.

Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

* ksud: fix cargo check

* manager: Fixed an issue where the KSUD release and user-mode scanning switch failed to function correctly.

- kernel: fix spin lock mutual

kernel: Fixed potential null pointer issue with current->mm in kernel version 5.10

When calling get_full_comm() within system call hooks, current->mm may be null (prctl). A fallback mechanism for current->comm must be added beforehand to prevent null pointer dereferences when accessing mm->arg_start/arg_end.

kernel: try introduce like susfs's method to fix prctl delay

* seccomp: allow reboot

* use u32

* update clang-format

* 4 spaces save the world

* ksud: Fix build on macOS

* manager: bump minimal supported kernel.

- When get_hook_type is empty, display “Unknown”.


* Fix ksud build (#2841)

* try fix ksud

* fix for macos

* remove any

* Fix ksud build, take 3

* try fix allowlist

* bring lsm hook back

* fix: a lot again

* Fix ksud build, take 4 (#2846)

Remove init_driver_fd function for non-linux/android targets

* manager: Return to the native method via KSUd installation

* Merge with susfs-mian format

---------

Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Co-authored-by: Ylarod <me@ylarod.cn>
Co-authored-by: weishu <twsxtd@gmail.com>
Co-authored-by: AlexLiuDev233 <wzylin11@outlook.com>
Co-authored-by: Wang Han <416810799@qq.com>
2025-11-01 23:30:30 +08:00