Files
MisterWizzardandClaude Opus 5 b09e018894 Fix /data/adb/magisk permissions so Zygisk can initialise
General.install() runs copy() -> extra1() -> set_perm(). set_perm() only walks
self.files, which are paths under copy_dir (the overlay), so the copy that
Magisk.setup() makes into <data_dir>/adb/magisk keeps the 0644 the binaries
inherit from the apk extraction.

A non-executable /data/adb/magisk/magisk64 makes magisk_env() abort at
post-fs-data. Root still works, because that runs from the overlay copy, but
Zygisk never initialises: the Magisk app reports "Zygisk: No" no matter what the
zygisk setting says, and no error is surfaced to explain why. This breaks every
Zygisk module (LSPosed, Shamiko, PlayIntegrityFix, ...).

Fix setup() to apply the same 0755 to its own destination that
Magisk.set_path_perm() already applies to magisk paths.

Adds a regression test that passes with the fix and fails without it. It needs no
Waydroid install, no root and no extra dependencies:

    python3 tests/test_magisk_setup_perms.py

Fixes #283

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 09:49:05 +10:00

185 lines
7.4 KiB
Python

import gzip
import os
import shutil
import re
from stuff.general import General
from tools.helper import download_file, get_data_dir, host
from tools.logger import Logger
from tools import container
class Magisk(General):
id = "magisk delta"
partition = "system"
dl_link = "https://github.com/mistrmochov/magiskdeltaorig/raw/main/app-release.apk"
dl_file_name = "magisk.apk"
extract_to = "/tmp/magisk_unpack"
magisk_dir = os.path.join(partition, "etc", "init", "magisk")
files = ["etc/init/magisk", "etc/init/bootanim.rc"]
oringinal_bootanim = """
service bootanim /system/bin/bootanimation
class core animation
user graphics
group graphics audio
disabled
oneshot
ioprio rt 0
task_profiles MaxPerformance
"""
bootanim_component = f"""
on post-fs-data
start logd
exec u:r:su:s0 root root -- /system/etc/init/magisk/magiskpolicy --live --magisk
exec u:r:magisk:s0 root root -- /system/etc/init/magisk/magiskpolicy --live --magisk
exec u:r:update_engine:s0 root root -- /system/etc/init/magisk/magiskpolicy --live --magisk
mkdir /dev/magisk_iqeoVo2mDrO 700
exec u:r:su:s0 root root -- /system/etc/init/magisk/magisk64 --auto-selinux --setup-sbin /system/etc/init/magisk /dev/magisk_iqeoVo2mDrO
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --post-fs-data
on nonencrypted
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --service
on property:vold.decrypt=trigger_restart_framework
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --service
on property:sys.boot_completed=1
mkdir /data/adb/magisk 755
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --boot-complete
on property:init.svc.zygote=restarting
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --zygote-restart
on property:init.svc.zygote=stopped
exec u:r:su:s0 root root -- /dev/magisk_iqeoVo2mDrO/magisk --auto-selinux --zygote-restart
"""
def download(self):
if os.path.isfile(self.download_loc):
os.remove(self.download_loc)
Logger.info("Downloading latest Magisk-Delta to {} now ...".format(self.download_loc))
download_file(self.dl_link, self.download_loc)
# require additional setup
def setup(self):
Logger.info("Additional setup")
magisk_absolute_dir = os.path.join(self.copy_dir, self.magisk_dir)
data_dir = get_data_dir()
data_magisk_dir = os.path.join(data_dir, "adb", "magisk")
shutil.copytree(magisk_absolute_dir, data_magisk_dir, dirs_exist_ok=True)
# General.install() calls set_perm() only over self.files, which are paths
# under copy_dir (the overlay). This /data/adb copy is made here, before
# that runs, so it keeps the 0644 the binaries inherited from the apk
# extraction. A non-executable /data/adb/magisk/magisk64 makes magisk_env()
# abort at post-fs-data: root still works from the overlay copy, but Zygisk
# silently never initialises (Magisk reports "Zygisk: No" no matter what
# the zygisk setting says). Apply the same perms set_path_perm() gives
# magisk paths, to this copy too.
self.set_data_magisk_perm(data_magisk_dir)
def set_data_magisk_perm(self, data_magisk_dir):
if not os.path.isdir(data_magisk_dir):
return
os.chmod(data_magisk_dir, 0o755)
for root, dirnames, filenames in os.walk(data_magisk_dir):
for dirname in dirnames:
os.chmod(os.path.join(root, dirname), 0o755)
for filename in filenames:
os.chmod(os.path.join(root, filename), 0o755)
def copy(self):
magisk_absolute_dir = os.path.join(self.copy_dir, self.magisk_dir)
if not os.path.exists(magisk_absolute_dir):
os.makedirs(magisk_absolute_dir, exist_ok=True)
if not os.path.exists(os.path.join(self.copy_dir, "sbin")):
os.makedirs(os.path.join(self.copy_dir, "sbin"), exist_ok=True)
Logger.info("Copying magisk libs now ...")
lib_dir = os.path.join(self.extract_to, "lib", self.arch[0])
for parent, dirnames, filenames in os.walk(lib_dir):
for filename in filenames:
o_path = os.path.join(lib_dir, filename)
filename = re.search('lib(.*)\.so', filename)
n_path = os.path.join(magisk_absolute_dir, filename.group(1))
shutil.copyfile(o_path, n_path)
shutil.copyfile(self.download_loc, os.path.join(magisk_absolute_dir,"magisk.apk") )
shutil.copytree(os.path.join(self.extract_to, "assets", "chromeos"), os.path.join(magisk_absolute_dir, "chromeos"), dirs_exist_ok=True)
assets_files = [
"addon.d.sh",
"boot_patch.sh",
"stub.apk",
"util_functions.sh"
]
for f in assets_files:
shutil.copyfile(os.path.join(self.extract_to, "assets", f), os.path.join(magisk_absolute_dir, f))
# Updating Magisk from Magisk manager will modify bootanim.rc,
# So it is necessary to backup the original bootanim.rc.
bootanim_path = os.path.join(self.copy_dir, self.partition, "etc", "init", "bootanim.rc")
gz_filename = os.path.join(bootanim_path)+".gz"
with gzip.open(gz_filename,'wb') as f_gz:
f_gz.write(self.oringinal_bootanim.encode('utf-8'))
with open(bootanim_path, "w") as initfile:
initfile.write(self.oringinal_bootanim+self.bootanim_component)
def set_path_perm(self, path):
if "magisk" in path.split("/"):
perms = [0, 2000, 0o755, 0o755]
else:
perms = [0, 0, 0o755, 0o644]
mode = os.stat(path).st_mode
if os.path.isdir(path):
mode |= perms[2]
else:
mode |= perms[3]
os.chown(path, perms[0], perms[1])
os.chmod(path, mode)
def extra1(self):
self.delete_upper()
self.setup()
# Delete the contents of upperdir
def delete_upper(self):
if container.use_overlayfs():
sys_overlay_rw = "/var/lib/waydroid/overlay_rw"
files = [
"system/system/etc/init/bootanim.rc",
"system/system/etc/init/bootanim.rc.gz",
"system/system/etc/init/magisk",
"system/system/addon.d/99-magisk.sh",
"vendor/etc/selinux/precompiled_sepolicy"
]
for f in files:
file = os.path.join(sys_overlay_rw, f)
if os.path.isdir(file):
shutil.rmtree(file)
elif os.path.isfile(file) or os.path.exists(file):
os.remove(file)
def extra2(self):
self.delete_upper()
data_dir = get_data_dir()
files = [
os.path.join(data_dir, "adb/magisk.db"),
os.path.join(data_dir, "adb/magisk")
]
for file in files:
if os.path.isdir(file):
shutil.rmtree(file)
elif os.path.isfile(file):
os.remove(file)
bootanim_path = os.path.join(self.copy_dir, self.partition, "etc", "init", "bootanim.rc")
if container.use_overlayfs():
if os.path.exists(bootanim_path):
os.remove(bootanim_path)
else:
with open(bootanim_path, "w") as initfile:
initfile.write(self.oringinal_bootanim)