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Add dtbo.img patch support

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topjohnwu
2017-11-11 01:33:50 +08:00
parent e9d0f615ba
commit 912c188b53
5 changed files with 88 additions and 37 deletions
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53
scripts/util_functions.sh
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@@ -41,8 +41,11 @@ ui_print() {
mount_partitions() {
# Check A/B slot
SLOT=`getprop ro.boot.slot_suffix`
[ -z $SLOT ] && SLOT=_`getprop ro.boot.slot`
[ $SLOT = "_" ] || ui_print "- A/B partition detected, current slot: $SLOT"
if [ -z $SLOT ]; then
SLOT=_`getprop ro.boot.slot`
[ $SLOT = "_" ] && SLOT=
fi
[ -z $SLOT ] || ui_print "- A/B partition detected, current slot: $SLOT"
ui_print "- Mounting /system, /vendor"
is_mounted /system || [ -f /system/build.prop ] || mount -o ro /system 2>/dev/null
if ! is_mounted /system && ! [ -f /system/build.prop ]; then
@@ -136,24 +139,60 @@ migrate_boot_backup() {
flash_boot_image() {
# Make sure all blocks are writable
$MAGISKBIN/magisk --unlock-blocks
$MAGISKBIN/magisk --unlock-blocks 2>/dev/null
case "$1" in
*.gz) COMMAND="gzip -d < \"$1\"";;
*) COMMAND="cat \"$1\"";;
*.gz) COMMAND="gzip -d < '$1'";;
*) COMMAND="cat '$1'";;
esac
$BOOTSIGNED && SIGNCOM="$BOOTSIGNER -sign" || SIGNCOM="cat -"
case "$2" in
/dev/block/*)
ui_print "- Flashing new boot image"
eval $COMMAND | eval $SIGNCOM | cat - /dev/zero | dd of="$2" bs=4096 >/dev/null 2>&1
eval $COMMAND | eval $SIGNCOM | cat - /dev/zero 2>/dev/null | dd of="$2" bs=4096 2>/dev/null
;;
*)
ui_print "- Storing new boot image"
eval $COMMAND | eval $SIGNCOM | dd of="$2" bs=4096 >/dev/null 2>&1
eval $COMMAND | eval $SIGNCOM | dd of="$2" bs=4096 2>/dev/null
;;
esac
}
find_dtbo_image() {
DTBOIMAGE=`find /dev/block -iname dtbo$SLOT | head -n 1` 2>/dev/null
[ ! -z $DTBOIMAGE ] && DTBOIMAGE=`resolve_link $DTBOIMAGE`
}
patch_dtbo_image() {
find_dtbo_image
if [ ! -z $DTBOIMAGE ]; then
ui_print "- Found dtbo image: $DTBOIMAGE"
if $MAGISKBIN/magiskboot --dtb-test $DTBOIMAGE; then
ui_print "- Backing up stock dtbo image"
$MAGISKBIN/magiskboot --compress $DTBOIMAGE $MAGISKBIN/stock_dtbo.img.gz
ui_print "- Patching fstab in dtbo to remove avb-verity"
$MAGISKBIN/magiskboot --dtb-patch $DTBOIMAGE
fi
fi
}
restore_imgs() {
STOCKBOOT=/data/stock_boot_${1}.img.gz
STOCKDTBO=/data/stock_dtbo.img.gz
find_dtbo_image
if [ ! -z "$DTBOIMAGE" -a -f "$STOCKDTBO" ]; then
ui_print "- Restoring stock dtbo image"
gzip -d < $STOCKDTBO | dd of=$DTBOIMAGE
fi
BOOTSIGNED=false
find_boot_image
if [ ! -z "$BOOTIMAGE" -a -f "$STOCKBOOT" ]; then
ui_print "- Restoring stock boot image"
flash_boot_image $STOCKBOOT "$BOOTIMAGE"
return 0
fi
return 1
}
sign_chromeos() {
ui_print "- Signing ChromeOS boot image"