485 lines
12 KiB
Bash
485 lines
12 KiB
Bash
#!/system/bin/sh
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############################################
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# KernelSU installer script
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# mostly from module_installer.sh
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# and util_functions.sh in Magisk
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############################################
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umask 022
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ui_print() {
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if $BOOTMODE; then
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echo "$1"
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else
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echo -e "ui_print $1\nui_print" >> /proc/self/fd/$OUTFD
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fi
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}
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toupper() {
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echo "$@" | tr '[:lower:]' '[:upper:]'
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}
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grep_cmdline() {
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local REGEX="s/^$1=//p"
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{ echo $(cat /proc/cmdline)$(sed -e 's/[^"]//g' -e 's/""//g' /proc/cmdline) | xargs -n 1; \
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sed -e 's/ = /=/g' -e 's/, /,/g' -e 's/"//g' /proc/bootconfig; \
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} 2>/dev/null | sed -n "$REGEX"
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}
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grep_prop() {
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local REGEX="s/$1=//p"
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shift
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local FILES=$@
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[ -z "$FILES" ] && FILES='/system/build.prop'
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cat $FILES 2>/dev/null | dos2unix | sed -n "$REGEX" | head -n 1 | xargs
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}
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grep_get_prop() {
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local result=$(grep_prop $@)
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if [ -z "$result" ]; then
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# Fallback to getprop
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getprop "$1"
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else
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echo $result
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fi
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}
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is_mounted() {
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grep -q " $(readlink -f $1) " /proc/mounts 2>/dev/null
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return $?
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}
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abort() {
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ui_print "$1"
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$BOOTMODE || recovery_cleanup
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[ ! -z $MODPATH ] && rm -rf $MODPATH
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rm -rf $TMPDIR
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exit 1
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}
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print_title() {
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local len line1len line2len bar
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line1len=$(echo -n $1 | wc -c)
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line2len=$(echo -n $2 | wc -c)
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len=$line2len
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[ $line1len -gt $line2len ] && len=$line1len
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len=$((len + 2))
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bar=$(printf "%${len}s" | tr ' ' '*')
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ui_print "$bar"
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ui_print " $1 "
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[ "$2" ] && ui_print " $2 "
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ui_print "$bar"
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}
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check_sepolicy() {
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/data/adb/ksud sepolicy check "$1"
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return $?
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}
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######################
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# Environment Related
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######################
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setup_flashable() {
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ensure_bb
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$BOOTMODE && return
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if [ -z $OUTFD ] || readlink /proc/$$/fd/$OUTFD | grep -q /tmp; then
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# We will have to manually find out OUTFD
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for FD in /proc/$$/fd/*; do
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if readlink /proc/$$/fd/$FD | grep -q pipe; then
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if ps | grep -v grep | grep -qE " 3 $FD |status_fd=$FD"; then
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OUTFD=$FD
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break
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fi
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fi
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done
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fi
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recovery_actions
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}
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ensure_bb() {
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:
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}
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recovery_actions() {
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:
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}
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recovery_cleanup() {
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:
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}
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#######################
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# Installation Related
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#######################
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# find_block [partname...]
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find_block() {
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local BLOCK DEV DEVICE DEVNAME PARTNAME UEVENT
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for BLOCK in "$@"; do
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DEVICE=`find /dev/block \( -type b -o -type c -o -type l \) -iname $BLOCK | head -n 1` 2>/dev/null
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if [ ! -z $DEVICE ]; then
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readlink -f $DEVICE
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return 0
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fi
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done
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# Fallback by parsing sysfs uevents
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for UEVENT in /sys/dev/block/*/uevent; do
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DEVNAME=`grep_prop DEVNAME $UEVENT`
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PARTNAME=`grep_prop PARTNAME $UEVENT`
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for BLOCK in "$@"; do
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if [ "$(toupper $BLOCK)" = "$(toupper $PARTNAME)" ]; then
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echo /dev/block/$DEVNAME
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return 0
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fi
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done
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done
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# Look just in /dev in case we're dealing with MTD/NAND without /dev/block devices/links
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for DEV in "$@"; do
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DEVICE=`find /dev \( -type b -o -type c -o -type l \) -maxdepth 1 -iname $DEV | head -n 1` 2>/dev/null
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if [ ! -z $DEVICE ]; then
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readlink -f $DEVICE
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return 0
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fi
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done
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return 1
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}
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# setup_mntpoint <mountpoint>
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setup_mntpoint() {
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local POINT=$1
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[ -L $POINT ] && mv -f $POINT ${POINT}_link
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if [ ! -d $POINT ]; then
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rm -f $POINT
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mkdir -p $POINT
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fi
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}
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# mount_name <partname(s)> <mountpoint> <flag>
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mount_name() {
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local PART=$1
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local POINT=$2
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local FLAG=$3
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setup_mntpoint $POINT
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is_mounted $POINT && return
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# First try mounting with fstab
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mount $FLAG $POINT 2>/dev/null
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if ! is_mounted $POINT; then
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local BLOCK=$(find_block $PART)
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mount $FLAG $BLOCK $POINT || return
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fi
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ui_print "- Mounting $POINT"
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}
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# mount_ro_ensure <partname(s)> <mountpoint>
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mount_ro_ensure() {
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# We handle ro partitions only in recovery
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$BOOTMODE && return
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local PART=$1
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local POINT=$2
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mount_name "$PART" $POINT '-o ro'
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is_mounted $POINT || abort "! Cannot mount $POINT"
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}
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mount_partitions() {
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# Check A/B slot
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SLOT=`grep_cmdline androidboot.slot_suffix`
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if [ -z $SLOT ]; then
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SLOT=`grep_cmdline androidboot.slot`
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[ -z $SLOT ] || SLOT=_${SLOT}
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fi
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[ -z $SLOT ] || ui_print "- Current boot slot: $SLOT"
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# Mount ro partitions
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if is_mounted /system_root; then
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umount /system 2&>/dev/null
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umount /system_root 2&>/dev/null
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fi
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mount_ro_ensure "system$SLOT app$SLOT" /system
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if [ -f /system/init -o -L /system/init ]; then
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SYSTEM_ROOT=true
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setup_mntpoint /system_root
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if ! mount --move /system /system_root; then
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umount /system
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umount -l /system 2>/dev/null
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mount_ro_ensure "system$SLOT app$SLOT" /system_root
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fi
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mount -o bind /system_root/system /system
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else
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SYSTEM_ROOT=false
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grep ' / ' /proc/mounts | grep -qv 'rootfs' || grep -q ' /system_root ' /proc/mounts && SYSTEM_ROOT=true
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fi
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# /vendor is used only on some older devices for recovery AVBv1 signing so is not critical if fails
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[ -L /system/vendor ] && mount_name vendor$SLOT /vendor '-o ro'
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$SYSTEM_ROOT && ui_print "- Device is system-as-root"
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# Mount sepolicy rules dir locations in recovery (best effort)
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if ! $BOOTMODE; then
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mount_name "cache cac" /cache
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mount_name metadata /metadata
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mount_name persist /persist
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fi
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}
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api_level_arch_detect() {
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API=$(grep_get_prop ro.build.version.sdk)
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ABI=$(grep_get_prop ro.product.cpu.abi)
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if [ "$ABI" = "x86" ]; then
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ARCH=x86
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ABI32=x86
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IS64BIT=false
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elif [ "$ABI" = "arm64-v8a" ]; then
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ARCH=arm64
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ABI32=armeabi-v7a
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IS64BIT=true
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elif [ "$ABI" = "x86_64" ]; then
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ARCH=x64
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ABI32=x86
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IS64BIT=true
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else
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ARCH=arm
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ABI=armeabi-v7a
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ABI32=armeabi-v7a
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IS64BIT=false
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fi
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}
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#################
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# Module Related
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#################
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check_managed_features() {
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local PROP_FILE=$1
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local MANAGED_FEATURES=$(grep_prop managedFeatures "$PROP_FILE")
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[ -z "$MANAGED_FEATURES" ] && return 0
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ui_print "- Checking managed features: $MANAGED_FEATURES"
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# Split features by comma
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echo "$MANAGED_FEATURES" | tr ',' '\n' | while read -r feature; do
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# Trim whitespace
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feature=$(echo "$feature" | xargs)
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[ -z "$feature" ] && continue
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# Check feature status using ksud
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local status=$(/data/adb/ksud feature check "$feature" 2>/dev/null)
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case "$status" in
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"unsupported")
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ui_print "! WARNING: Feature '$feature' is NOT SUPPORTED by kernel"
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ui_print "! This module may not work correctly!"
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;;
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"managed")
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ui_print "! WARNING: Feature '$feature' is already MANAGED by another module"
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ui_print "! Feature conflicts may occur!"
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;;
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"supported")
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ui_print "- Feature '$feature' is supported and available"
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;;
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*)
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ui_print "! WARNING: Unable to check feature '$feature' status"
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;;
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esac
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done
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}
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set_perm() {
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chown $2:$3 $1 || return 1
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chmod $4 $1 || return 1
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local CON=$5
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[ -z $CON ] && CON=u:object_r:system_file:s0
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chcon $CON $1 || return 1
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}
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set_perm_recursive() {
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find $1 -type d 2>/dev/null | while read dir; do
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set_perm $dir $2 $3 $4 $6
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done
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find $1 -type f -o -type l 2>/dev/null | while read file; do
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set_perm $file $2 $3 $5 $6
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done
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}
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mktouch() {
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mkdir -p ${1%/*} 2>/dev/null
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[ -z $2 ] && touch $1 || echo $2 > $1
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chmod 644 $1
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}
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mark_remove() {
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mkdir -p ${1%/*} 2>/dev/null
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mknod $1 c 0 0
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chmod 644 $1
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}
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mark_replace() {
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# REPLACE must be directory!!!
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# https://docs.kernel.org/filesystems/overlayfs.html#whiteouts-and-opaque-directories
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mkdir -p $1 2>/dev/null
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setfattr -n trusted.overlay.opaque -v y $1
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chmod 644 $1
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}
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request_size_check() {
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reqSizeM=`du -ms "$1" | cut -f1`
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}
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request_zip_size_check() {
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reqSizeM=`unzip -l "$1" | tail -n 1 | awk '{ print int(($1 - 1) / 1048576 + 1) }'`
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}
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boot_actions() { return; }
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# Require ZIPFILE to be set
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is_legacy_script() {
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unzip -l "$ZIPFILE" install.sh | grep -q install.sh
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return $?
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}
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handle_partition() {
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PARTITION="$1"
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REQUIRE_SYMLINK="$2"
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if [ ! -e "$MODPATH/system/$PARTITION" ]; then
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# no partition found
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return;
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fi
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if [ "$REQUIRE_SYMLINK" = "false" ] || [ -L "/system/$PARTITION" ] && [ "$(readlink -f "/system/$PARTITION")" = "/$PARTITION" ]; then
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ui_print "- Handle partition /$PARTITION"
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ln -sf "./system/$PARTITION" "$MODPATH/$PARTITION"
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fi
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}
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# Require OUTFD, ZIPFILE to be set
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install_module() {
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rm -rf $TMPDIR
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mkdir -p $TMPDIR
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chcon u:object_r:system_file:s0 $TMPDIR
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cd $TMPDIR
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mount_partitions
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api_level_arch_detect
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# Setup busybox and binaries
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if $BOOTMODE; then
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boot_actions
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else
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recovery_actions
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fi
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# Extract prop file
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unzip -o "$ZIPFILE" module.prop -d $TMPDIR >&2
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[ ! -f $TMPDIR/module.prop ] && abort "! Unable to extract zip file!"
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local MODDIRNAME=modules
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$BOOTMODE && MODDIRNAME=modules_update
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local MODULEROOT=$NVBASE/$MODDIRNAME
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MODID=`grep_prop id $TMPDIR/module.prop`
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MODNAME=`grep_prop name $TMPDIR/module.prop`
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MODAUTH=`grep_prop author $TMPDIR/module.prop`
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MODPATH=$MODULEROOT/$MODID
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# Check managed features
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check_managed_features $TMPDIR/module.prop
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# Create mod paths
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rm -rf $MODPATH
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mkdir -p $MODPATH
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if is_legacy_script; then
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unzip -oj "$ZIPFILE" module.prop install.sh uninstall.sh 'common/*' -d $TMPDIR >&2
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# Load install script
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. $TMPDIR/install.sh
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# Callbacks
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print_modname
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on_install
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[ -f $TMPDIR/uninstall.sh ] && cp -af $TMPDIR/uninstall.sh $MODPATH/uninstall.sh
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$SKIPMOUNT && touch $MODPATH/skip_mount
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$PROPFILE && cp -af $TMPDIR/system.prop $MODPATH/system.prop
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cp -af $TMPDIR/module.prop $MODPATH/module.prop
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$POSTFSDATA && cp -af $TMPDIR/post-fs-data.sh $MODPATH/post-fs-data.sh
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$LATESTARTSERVICE && cp -af $TMPDIR/service.sh $MODPATH/service.sh
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ui_print "- Setting permissions"
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set_permissions
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else
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print_title "$MODNAME" "by $MODAUTH"
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print_title "Powered by KernelSU"
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unzip -o "$ZIPFILE" customize.sh -d $MODPATH >&2
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if ! grep -q '^SKIPUNZIP=1$' $MODPATH/customize.sh 2>/dev/null; then
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ui_print "- Extracting module files"
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unzip -o "$ZIPFILE" -x 'META-INF/*' -d $MODPATH >&2
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# Default permissions
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set_perm_recursive $MODPATH 0 0 0755 0644
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set_perm_recursive $MODPATH/system/bin 0 2000 0755 0755
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set_perm_recursive $MODPATH/system/xbin 0 2000 0755 0755
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set_perm_recursive $MODPATH/system/system_ext/bin 0 2000 0755 0755
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set_perm_recursive $MODPATH/system/vendor 0 2000 0755 0755 u:object_r:vendor_file:s0
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fi
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# Load customization script
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[ -f $MODPATH/customize.sh ] && . $MODPATH/customize.sh
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fi
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handle_partition vendor true
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handle_partition system_ext true
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handle_partition product true
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handle_partition odm false
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# Handle replace folders
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for TARGET in $REPLACE; do
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ui_print "- Replace target: $TARGET"
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mark_replace "$MODPATH$TARGET"
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done
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# Handle remove files
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for TARGET in $REMOVE; do
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ui_print "- Remove target: $TARGET"
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mark_remove "$MODPATH$TARGET"
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done
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if $BOOTMODE; then
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mktouch $NVBASE/modules/$MODID/update
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rm -rf $NVBASE/modules/$MODID/remove 2>/dev/null
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rm -rf $NVBASE/modules/$MODID/disable 2>/dev/null
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cp -af $MODPATH/module.prop $NVBASE/modules/$MODID/module.prop
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fi
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# Remove stuff that doesn't belong to modules and clean up any empty directories
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rm -rf \
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$MODPATH/system/placeholder $MODPATH/customize.sh \
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$MODPATH/README.md $MODPATH/.git*
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rmdir -p $MODPATH 2>/dev/null
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cd /
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$BOOTMODE || recovery_cleanup
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rm -rf $TMPDIR
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ui_print "- Done"
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}
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##########
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# Presets
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##########
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# Detect whether in boot mode
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[ -z $BOOTMODE ] && ps | grep zygote | grep -qv grep && BOOTMODE=true
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[ -z $BOOTMODE ] && ps -A 2>/dev/null | grep zygote | grep -qv grep && BOOTMODE=true
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[ -z $BOOTMODE ] && BOOTMODE=false
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NVBASE=/data/adb
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TMPDIR=/dev/tmp
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POSTFSDATAD=$NVBASE/post-fs-data.d
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SERVICED=$NVBASE/service.d
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# Some modules dependents on this
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export MAGISK_VER=25.2
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export MAGISK_VER_CODE=25200
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