Kexec Magisk Module

Signed-off-by: Denis Efremov <[email protected]>

Author: evdenis

.gitignore

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+*.zip

META-INF/com/google/android/update-binary

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+#!/sbin/sh
+
+#################
+# Initialization
+#################
+
+umask 022
+
+# echo before loading util_functions
+ui_print() { echo "$1"; }
+
+require_new_magisk() {
+  ui_print "*******************************"
+  ui_print " Please install Magisk v19.0+! "
+  ui_print "*******************************"
+  exit 1
+}
+
+#########################
+# Load util_functions.sh
+#########################
+
+OUTFD=$2
+ZIPFILE=$3
+
+mount /data 2>/dev/null
+
+[ -f /data/adb/magisk/util_functions.sh ] || require_new_magisk
+. /data/adb/magisk/util_functions.sh
+[ $MAGISK_VER_CODE -lt 19000 ] && require_new_magisk
+
+if [ $MAGISK_VER_CODE -ge 20400 ]; then
+  # New Magisk have complete installation logic within util_functions.sh
+  install_module
+  exit 0
+fi
+
+#################
+# Legacy Support
+#################
+
+TMPDIR=/dev/tmp
+PERSISTDIR=/sbin/.magisk/mirror/persist
+
+is_legacy_script() {
+  unzip -l "$ZIPFILE" install.sh | grep -q install.sh
+  return $?
+}
+
+print_modname() {
+  local len
+  len=`echo -n $MODNAME | wc -c`
+  len=$((len + 2))
+  local pounds=`printf "%${len}s" | tr ' ' '*'`
+  ui_print "$pounds"
+  ui_print " $MODNAME "
+  ui_print "$pounds"
+  ui_print "*******************"
+  ui_print " Powered by Magisk "
+  ui_print "*******************"
+}
+
+# Override abort as old scripts have some issues
+abort() {
+  ui_print "$1"
+  $BOOTMODE || recovery_cleanup
+  [ -n $MODPATH ] && rm -rf $MODPATH
+  rm -rf $TMPDIR
+  exit 1
+}
+
+rm -rf $TMPDIR 2>/dev/null
+mkdir -p $TMPDIR
+
+# Preperation for flashable zips
+setup_flashable
+
+# Mount partitions
+mount_partitions
+
+# Detect version and architecture
+api_level_arch_detect
+
+# Setup busybox and binaries
+$BOOTMODE && boot_actions || recovery_actions
+
+##############
+# Preparation
+##############
+
+# Extract prop file
+unzip -o "$ZIPFILE" module.prop -d $TMPDIR >&2
+[ ! -f $TMPDIR/module.prop ] && abort "! Unable to extract zip file!"
+
+$BOOTMODE && MODDIRNAME=modules_update || MODDIRNAME=modules
+MODULEROOT=$NVBASE/$MODDIRNAME
+MODID=`grep_prop id $TMPDIR/module.prop`
+MODPATH=$MODULEROOT/$MODID
+MODNAME=`grep_prop name $TMPDIR/module.prop`
+
+# Create mod paths
+rm -rf $MODPATH 2>/dev/null
+mkdir -p $MODPATH
+
+##########
+# Install
+##########
+
+if is_legacy_script; then
+  unzip -oj "$ZIPFILE" module.prop install.sh uninstall.sh 'common/*' -d $TMPDIR >&2
+
+  # Load install script
+  . $TMPDIR/install.sh
+
+  # Callbacks
+  print_modname
+  on_install
+
+  # Custom uninstaller
+  [ -f $TMPDIR/uninstall.sh ] && cp -af $TMPDIR/uninstall.sh $MODPATH/uninstall.sh
+
+  # Skip mount
+  $SKIPMOUNT && touch $MODPATH/skip_mount
+
+  # prop file
+  $PROPFILE && cp -af $TMPDIR/system.prop $MODPATH/system.prop
+
+  # Module info
+  cp -af $TMPDIR/module.prop $MODPATH/module.prop
+
+  # post-fs-data scripts
+  $POSTFSDATA && cp -af $TMPDIR/post-fs-data.sh $MODPATH/post-fs-data.sh
+
+  # service scripts
+  $LATESTARTSERVICE && cp -af $TMPDIR/service.sh $MODPATH/service.sh
+
+  ui_print "- Setting permissions"
+  set_permissions
+else
+  print_modname
+
+  unzip -o "$ZIPFILE" customize.sh -d $MODPATH >&2
+
+  if ! grep -q '^SKIPUNZIP=1$' $MODPATH/customize.sh 2>/dev/null; then
+    ui_print "- Extracting module files"
+    unzip -o "$ZIPFILE" -x 'META-INF/*' -d $MODPATH >&2
+
+    # Default permissions
+    set_perm_recursive $MODPATH 0 0 0755 0644
+  fi
+
+  # Load customization script
+  [ -f $MODPATH/customize.sh ] && . $MODPATH/customize.sh
+fi
+
+# Handle replace folders
+for TARGET in $REPLACE; do
+  ui_print "- Replace target: $TARGET"
+  mktouch $MODPATH$TARGET/.replace
+done
+
+if $BOOTMODE; then
+  # Update info for Magisk Manager
+  mktouch $NVBASE/modules/$MODID/update
+  cp -af $MODPATH/module.prop $NVBASE/modules/$MODID/module.prop
+fi
+
+# Copy over custom sepolicy rules
+if [ -f $MODPATH/sepolicy.rule -a -e $PERSISTDIR ]; then
+  ui_print "- Installing custom sepolicy patch"
+  PERSISTMOD=$PERSISTDIR/magisk/$MODID
+  mkdir -p $PERSISTMOD
+  cp -af $MODPATH/sepolicy.rule $PERSISTMOD/sepolicy.rule
+fi
+
+# Remove stuffs that don't belong to modules
+rm -rf \
+$MODPATH/system/placeholder $MODPATH/customize.sh \
+$MODPATH/README.md $MODPATH/.git* 2>/dev/null
+
+#############
+# Finalizing
+#############
+
+cd /
+$BOOTMODE || recovery_cleanup
+rm -rf $TMPDIR
+
+ui_print "- Done"
+exit 0

META-INF/com/google/android/updater-script

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+#MAGISK

README.md

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+# Kexec tools for Android
+
+## How to install:
+
+Stable release:
+1. Dowload latest kexec.zip from releases page
+   https://github.com/evdenis/kexec/releases
+2. MagiskManager -> Modules + Downloads/kexec.zip -> Reboot
+
+Master branch:
+1. git clone https://github.com/evdenis/kexec
+2. cd kexec
+3. git archive --output kexec.zip HEAD
+4. adb push kexec.zip /sdcard/
+5. MagiskManager -> Modules + kexec.zip -> Reboot
+
+## Support
+
+- [Telegram](https://t.me/joinchat/GsJfBBaxozXvVkSJhm0IOQ)
+- [XDA Thread](https://forum.xda-developers.com/apps/magisk/module-debugging-modules-adb-root-t4050041)

customize.sh

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+set_perm $MODPATH/system/bin/kexec 0 0 0755

module.prop

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+id=kexec
+name=Kexec Tools for Android
+version=v1
+versionCode=1
+author=Denis Efremov (@evdenis)
+description=Kexec tools for Android (aarch64).