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Anykernel3/tools/ak3-core.sh
Sanju0910 bb8da508c2 Initial commit
Co-authored-by: Chris Renshaw <osm0sis@outlook.com>
2023-08-18 17:25:10 +05:30

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### AnyKernel methods (DO NOT CHANGE)
## osm0sis @ xda-developers
OUTFD=$1;
# set up working directory variables
[ "$home" ] || home=$PWD;
bootimg=$home/boot.img;
bin=$home/tools;
patch=$home/patch;
ramdisk=$home/ramdisk;
split_img=$home/split_img;
### output/testing functions:
# ui_print "<text>" [...]
ui_print() {
until [ ! "$1" ]; do
echo "ui_print $1
ui_print" >> /proc/self/fd/$OUTFD;
shift;
done;
}
# abort ["<text>" [...]]
abort() {
ui_print " " "$@";
exit 1;
}
# contains <string> <substring>
contains() {
[ "${1#*$2}" != "$1" ];
}
# file_getprop <file> <property>
file_getprop() {
grep "^$2=" "$1" | cut -d= -f2-;
}
###
### file/directory attributes functions:
# set_perm <owner> <group> <mode> <file> [<file2> ...]
set_perm() {
local uid gid mod;
uid=$1; gid=$2; mod=$3;
shift 3;
chown $uid:$gid "$@" || chown $uid.$gid "$@";
chmod $mod "$@";
}
# set_perm_recursive <owner> <group> <dir_mode> <file_mode> <dir> [<dir2> ...]
set_perm_recursive() {
local uid gid dmod fmod;
uid=$1; gid=$2; dmod=$3; fmod=$4;
shift 4;
while [ "$1" ]; do
chown -R $uid:$gid "$1" || chown -R $uid.$gid "$1";
find "$1" -type d -exec chmod $dmod {} +;
find "$1" -type f -exec chmod $fmod {} +;
shift;
done;
}
###
### dump_boot functions:
# split_boot (dump and split image only)
split_boot() {
local dumpfail;
if [ ! -e "$(echo $block | cut -d\ -f1)" ]; then
abort "Invalid partition. Aborting...";
fi;
if [ "$(echo $block | grep ' ')" ]; then
block=$(echo $block | cut -d\ -f1);
customdd=$(echo $block | cut -d\ -f2-);
elif [ ! "$customdd" ]; then
local customdd="bs=1048576";
fi;
if [ -f "$bin/nanddump" ]; then
$bin/nanddump -f $bootimg $block;
else
dd if=$block of=$bootimg $customdd;
fi;
[ $? != 0 ] && dumpfail=1;
mkdir -p $split_img;
cd $split_img;
if [ -f "$bin/unpackelf" ] && $bin/unpackelf -i $bootimg -h -q 2>/dev/null; then
if [ -f "$bin/elftool" ]; then
mkdir elftool_out;
$bin/elftool unpack -i $bootimg -o elftool_out;
fi;
$bin/unpackelf -i $bootimg;
[ $? != 0 ] && dumpfail=1;
mv -f boot.img-zImage kernel.gz;
mv -f boot.img-ramdisk.cpio.gz ramdisk.cpio.gz;
mv -f boot.img-cmdline cmdline.txt 2>/dev/null;
if [ -f boot.img-dt -a ! -f "$bin/elftool" ]; then
case $(od -ta -An -N4 boot.img-dt | sed -e 's/ del//' -e 's/ //g') in
QCDT|ELF) mv -f boot.img-dt dt;;
*)
gzip -c kernel.gz > kernel.gz-dtb;
cat boot.img-dt >> kernel.gz-dtb;
rm -f boot.img-dt kernel.gz;
;;
esac;
fi;
elif [ -f "$bin/mboot" ]; then
$bin/mboot -u -f $bootimg;
elif [ -f "$bin/dumpimage" ]; then
dd bs=$(($(printf '%d\n' 0x$(hexdump -n 4 -s 12 -e '16/1 "%02x""\n"' $bootimg)) + 64)) count=1 conv=notrunc if=$bootimg of=boot-trimmed.img;
$bin/dumpimage -l boot-trimmed.img > header;
grep "Name:" header | cut -c15- > boot.img-name;
grep "Type:" header | cut -c15- | cut -d\ -f1 > boot.img-arch;
grep "Type:" header | cut -c15- | cut -d\ -f2 > boot.img-os;
grep "Type:" header | cut -c15- | cut -d\ -f3 | cut -d- -f1 > boot.img-type;
grep "Type:" header | cut -d\( -f2 | cut -d\) -f1 | cut -d\ -f1 | cut -d- -f1 > boot.img-comp;
grep "Address:" header | cut -c15- > boot.img-addr;
grep "Point:" header | cut -c15- > boot.img-ep;
$bin/dumpimage -p 0 -o kernel.gz boot-trimmed.img;
[ $? != 0 ] && dumpfail=1;
case $(cat boot.img-type) in
Multi) $bin/dumpimage -p 1 -o ramdisk.cpio.gz boot-trimmed.img;;
RAMDisk) mv -f kernel.gz ramdisk.cpio.gz;;
esac;
elif [ -f "$bin/rkcrc" ]; then
dd bs=4096 skip=8 iflag=skip_bytes conv=notrunc if=$bootimg of=ramdisk.cpio.gz;
else
$bin/magiskboot unpack -h $bootimg;
case $? in
1) dumpfail=1;;
2) touch chromeos;;
esac;
fi;
if [ $? != 0 -o "$dumpfail" ]; then
abort "Dumping/splitting image failed. Aborting...";
fi;
cd $home;
}
# unpack_ramdisk (extract ramdisk only)
unpack_ramdisk() {
local comp;
cd $split_img;
if [ -f ramdisk.cpio.gz ]; then
if [ -f "$bin/mkmtkhdr" ]; then
mv -f ramdisk.cpio.gz ramdisk.cpio.gz-mtk;
dd bs=512 skip=1 conv=notrunc if=ramdisk.cpio.gz-mtk of=ramdisk.cpio.gz;
fi;
mv -f ramdisk.cpio.gz ramdisk.cpio;
fi;
if [ -f ramdisk.cpio ]; then
comp=$($bin/magiskboot decompress ramdisk.cpio 2>&1 | grep -v 'raw' | sed -n 's;.*\[\(.*\)\];\1;p');
else
echo "No ramdisk found to unpack. Aborting...";
fi;
if [ "$comp" ]; then
mv -f ramdisk.cpio ramdisk.cpio.$comp;
$bin/magiskboot decompress ramdisk.cpio.$comp ramdisk.cpio;
if [ $? != 0 ]; then
echo "Attempting ramdisk unpack with busybox $comp..." >&2;
$comp -dc ramdisk.cpio.$comp > ramdisk.cpio;
fi;
fi;
[ -d $ramdisk ] && mv -f $ramdisk $home/rdtmp;
mkdir -p $ramdisk;
chmod 755 $ramdisk;
cd $ramdisk;
EXTRACT_UNSAFE_SYMLINKS=1 cpio -d -F $split_img/ramdisk.cpio -i;
if [ $? != 0 -o ! "$(ls)" ]; then
echo "Unpacking ramdisk failed. Aborting...";
fi;
if [ -d "$home/rdtmp" ]; then
cp -af $home/rdtmp/* .;
fi;
}
### dump_boot (dump and split image, then extract ramdisk)
dump_boot() {
split_boot;
unpack_ramdisk;
}
###
### write_boot functions:
# repack_ramdisk (repack ramdisk only)
repack_ramdisk() {
local comp packfail mtktype;
cd $home;
case $ramdisk_compression in
auto|"") comp=$(ls $split_img/ramdisk.cpio.* 2>/dev/null | grep -v 'mtk' | rev | cut -d. -f1 | rev);;
none|cpio) comp="";;
gz) comp=gzip;;
lzo) comp=lzop;;
bz2) comp=bzip2;;
lz4-l) comp=lz4_legacy;;
*) comp=$ramdisk_compression;;
esac;
if [ -f "$bin/mkbootfs" ]; then
$bin/mkbootfs $ramdisk > ramdisk-new.cpio;
else
cd $ramdisk;
find . | cpio -H newc -o > $home/ramdisk-new.cpio;
fi;
[ $? != 0 ] && packfail=1;
cd $home;
$bin/magiskboot cpio ramdisk-new.cpio test;
magisk_patched=$?;
[ $((magisk_patched & 3)) -eq 1 ] && $bin/magiskboot cpio ramdisk-new.cpio "extract .backup/.magisk $split_img/.magisk";
if [ "$comp" ]; then
$bin/magiskboot compress=$comp ramdisk-new.cpio;
if [ $? != 0 ]; then
echo "Attempting ramdisk repack with busybox $comp..." >&2;
$comp -9c ramdisk-new.cpio > ramdisk-new.cpio.$comp;
[ $? != 0 ] && packfail=1;
rm -f ramdisk-new.cpio;
fi;
fi;
if [ "$packfail" ]; then
echo "Repacking ramdisk failed. Aborting...";
fi;
if [ -f "$bin/mkmtkhdr" -a -f "$split_img/boot.img-base" ]; then
mtktype=$(od -ta -An -N8 -j8 $split_img/ramdisk.cpio.gz-mtk | sed -e 's/ nul//g' -e 's/ //g' | tr '[:upper:]' '[:lower:]');
case $mtktype in
rootfs|recovery) $bin/mkmtkhdr --$mtktype ramdisk-new.cpio*;;
esac;
fi;
}
# flash_boot (build, sign and write image only)
flash_boot() {
local varlist i kernel ramdisk fdt cmdline comp part0 part1 nocompflag signfail pk8 cert avbtype;
cd $split_img;
if [ -f "$bin/mkimage" ]; then
varlist="name arch os type comp addr ep";
elif [ -f "$bin/mkbootimg" -a -f "$bin/unpackelf" -a -f boot.img-base ]; then
mv -f cmdline.txt boot.img-cmdline 2>/dev/null;
varlist="cmdline base pagesize kernel_offset ramdisk_offset tags_offset";
fi;
for i in $varlist; do
if [ -f boot.img-$i ]; then
eval local $i=\"$(cat boot.img-$i)\";
fi;
done;
cd $home;
for i in zImage zImage-dtb Image Image-dtb Image.gz Image.gz-dtb Image.bz2 Image.bz2-dtb Image.lzo Image.lzo-dtb Image.lzma Image.lzma-dtb Image.xz Image.xz-dtb Image.lz4 Image.lz4-dtb Image.fit; do
if [ -f $i ]; then
kernel=$home/$i;
break;
fi;
done;
if [ "$kernel" ]; then
if [ -f "$bin/mkmtkhdr" -a -f "$split_img/boot.img-base" ]; then
$bin/mkmtkhdr --kernel $kernel;
kernel=$kernel-mtk;
fi;
elif [ "$(ls $split_img/kernel* 2>/dev/null)" ]; then
kernel=$(ls $split_img/kernel* | grep -v 'kernel_dtb' | tail -n1);
fi;
if [ "$(ls ramdisk-new.cpio* 2>/dev/null)" ]; then
ramdisk=$home/$(ls ramdisk-new.cpio* | tail -n1);
elif [ -f "$bin/mkmtkhdr" -a -f "$split_img/boot.img-base" ]; then
ramdisk=$split_img/ramdisk.cpio.gz-mtk;
else
ramdisk=$(ls $split_img/ramdisk.cpio* 2>/dev/null | tail -n1);
fi;
for fdt in dt recovery_dtbo dtb; do
for i in $home/$fdt $home/$fdt.img $split_img/$fdt; do
if [ -f $i ]; then
eval local $fdt=$i;
break;
fi;
done;
done;
cd $split_img;
if [ -f "$bin/mkimage" ]; then
[ "$comp" == "uncompressed" ] && comp=none;
part0=$kernel;
case $type in
Multi) part1=":$ramdisk";;
RAMDisk) part0=$ramdisk;;
esac;
$bin/mkimage -A $arch -O $os -T $type -C $comp -a $addr -e $ep -n "$name" -d $part0$part1 $home/boot-new.img;
elif [ -f "$bin/elftool" ]; then
[ "$dt" ] && dt="$dt,rpm";
[ -f cmdline.txt ] && cmdline="cmdline.txt@cmdline";
$bin/elftool pack -o $home/boot-new.img header=elftool_out/header $kernel $ramdisk,ramdisk $dt $cmdline;
elif [ -f "$bin/mboot" ]; then
cp -f $kernel kernel;
cp -f $ramdisk ramdisk.cpio.gz;
$bin/mboot -d $split_img -f $home/boot-new.img;
elif [ -f "$bin/rkcrc" ]; then
$bin/rkcrc -k $ramdisk $home/boot-new.img;
elif [ -f "$bin/mkbootimg" -a -f "$bin/unpackelf" -a -f boot.img-base ]; then
[ "$dt" ] && dt="--dt $dt";
$bin/mkbootimg --kernel $kernel --ramdisk $ramdisk --cmdline "$cmdline" --base $home --pagesize $pagesize --kernel_offset $kernel_offset --ramdisk_offset $ramdisk_offset --tags_offset "$tags_offset" $dt --output $home/boot-new.img;
else
[ "$kernel" ] && cp -f $kernel kernel;
[ "$ramdisk" ] && cp -f $ramdisk ramdisk.cpio;
[ "$dt" -a -f extra ] && cp -f $dt extra;
for i in dtb recovery_dtbo; do
[ "$(eval echo \$$i)" -a -f $i ] && cp -f $(eval echo \$$i) $i;
done;
case $kernel in
*Image*)
if [ ! "$magisk_patched" ]; then
$bin/magiskboot cpio ramdisk.cpio test;
magisk_patched=$?;
fi;
if [ $((magisk_patched & 3)) -eq 1 ]; then
ui_print " " "- Magisk detected : Patching kernel..."
comp=$($bin/magiskboot decompress kernel 2>&1 | grep -v 'raw' | sed -n 's;.*\[\(.*\)\];\1;p');
($bin/magiskboot split $kernel || $bin/magiskboot decompress $kernel kernel) 2>/dev/null;
if [ $? != 0 -a "$comp" ]; then
echo "Attempting kernel unpack with busybox $comp..." >&2;
$comp -dc $kernel > kernel;
fi;
$bin/magiskboot hexpatch kernel 736B69705F696E697472616D667300 77616E745F696E697472616D667300;
if [ "$(file_getprop $home/anykernel.sh do.systemless)" == 1 ]; then
strings kernel | grep -E 'Linux version.*#' > $home/vertmp;
fi;
if [ "$comp" ]; then
$bin/magiskboot compress=$comp kernel kernel.$comp;
if [ $? != 0 ]; then
echo "Attempting kernel repack with busybox $comp..." >&2;
$comp -9c kernel > kernel.$comp;
fi;
mv -f kernel.$comp kernel;
fi;
[ ! -f .magisk ] && $bin/magiskboot cpio ramdisk.cpio "extract .backup/.magisk .magisk";
export $(cat .magisk);
[ $((magisk_patched & 8)) -ne 0 ] && export TWOSTAGEINIT=true;
for fdt in dtb extra kernel_dtb recovery_dtbo; do
[ -f $fdt ] && $bin/magiskboot dtb $fdt patch;
done;
else
case $kernel in
*-dtb) rm -f kernel_dtb;;
esac;
fi;
unset magisk_patched KEEPFORCEENCRYPT KEEPVERITY SHA1 TWOSTAGEINIT;
;;
esac;
case $ramdisk_compression in
none|cpio) nocompflag="-n";;
esac;
$bin/magiskboot repack $nocompflag $bootimg $home/boot-new.img;
fi;
if [ $? != 0 ]; then
abort "Repacking image failed. Aborting...";
fi;
cd $home;
if [ -f "$bin/futility" -a -d "$bin/chromeos" ]; then
if [ -f "$split_img/chromeos" ]; then
echo "Signing with CHROMEOS..." >&2;
$bin/futility vbutil_kernel --pack boot-new-signed.img --keyblock $bin/chromeos/kernel.keyblock --signprivate $bin/chromeos/kernel_data_key.vbprivk --version 1 --vmlinuz boot-new.img --bootloader $bin/chromeos/empty --config $bin/chromeos/empty --arch arm --flags 0x1;
fi;
[ $? != 0 ] && signfail=1;
fi;
if [ -f "$bin/boot_signer-dexed.jar" -a -d "$bin/avb" ]; then
pk8=$(ls $bin/avb/*.pk8);
cert=$(ls $bin/avb/*.x509.*);
case $block in
*recovery*|*SOS*) avbtype=recovery;;
*) avbtype=boot;;
esac;
if [ "$(/system/bin/dalvikvm -Xnoimage-dex2oat -cp $bin/boot_signer-dexed.jar com.android.verity.BootSignature -verify boot.img 2>&1 | grep VALID)" ]; then
echo "Signing with AVBv1..." >&2;
/system/bin/dalvikvm -Xnoimage-dex2oat -cp $bin/boot_signer-dexed.jar com.android.verity.BootSignature /$avbtype boot-new.img $pk8 $cert boot-new-signed.img;
fi;
fi;
if [ $? != 0 -o "$signfail" ]; then
abort "Signing image failed. Aborting...";
fi;
mv -f boot-new-signed.img boot-new.img 2>/dev/null;
if [ ! -f boot-new.img ]; then
abort "No repacked image found to flash. Aborting...";
elif [ "$(wc -c < boot-new.img)" -gt "$(wc -c < boot.img)" ]; then
abort "New image larger than boot partition. Aborting...";
fi;
blockdev --setrw $block 2>/dev/null;
if [ -f "$bin/flash_erase" -a -f "$bin/nandwrite" ]; then
$bin/flash_erase $block 0 0;
$bin/nandwrite -p $block boot-new.img;
elif [ "$customdd" ]; then
dd if=/dev/zero of=$block $customdd 2>/dev/null;
dd if=boot-new.img of=$block $customdd;
else
cat boot-new.img /dev/zero > $block 2>/dev/null || true;
fi;
if [ $? != 0 ]; then
abort "Flashing image failed. Aborting...";
fi;
}
# flash_dtbo (flash dtbo only)
flash_dtbo() {
local i dtbo dtboblock;
cd $home;
for i in dtbo dtbo.img; do
if [ -f $i ]; then
dtbo=$i;
break;
fi;
done;
if [ "$dtbo" ]; then
dtboblock=/dev/block/bootdevice/by-name/dtbo$slot;
if [ ! -e "$dtboblock" ]; then
abort "dtbo partition could not be found. Aborting...";
fi;
blockdev --setrw $dtboblock 2>/dev/null;
if [ -f "$bin/flash_erase" -a -f "$bin/nandwrite" ]; then
$bin/flash_erase $dtboblock 0 0;
$bin/nandwrite -p $dtboblock $dtbo;
elif [ "$customdd" ]; then
dd if=/dev/zero of=$dtboblock 2>/dev/null;
dd if=$dtbo of=$dtboblock;
else
cat $dtbo /dev/zero > $dtboblock 2>/dev/null || true;
fi;
if [ $? != 0 ]; then
abort "Flashing dtbo failed. Aborting...";
fi;
fi;
}
### write_boot (repack ramdisk then build, sign and write image and dtbo)
write_boot() {
repack_ramdisk;
flash_boot;
flash_dtbo;
}
###
### file editing functions:
# backup_file <file>
backup_file() { [ ! -f $1~ ] && cp -fp $1 $1~; }
# restore_file <file>
restore_file() { [ -f $1~ ] && cp -fp $1~ $1; rm -f $1~; }
# replace_string <file> <if search string> <original string> <replacement string> <scope>
replace_string() {
[ "$5" == "global" ] && local scope=g;
if ! grep -q "$2" $1; then
sed -i "s;${3};${4};${scope}" $1;
fi;
}
# replace_section <file> <begin search string> <end search string> <replacement string>
replace_section() {
local begin endstr last end;
begin=$(grep -n "$2" $1 | head -n1 | cut -d: -f1);
if [ "$begin" ]; then
if [ "$3" == " " -o ! "$3" ]; then
endstr='^[[:space:]]*$';
last=$(wc -l $1 | cut -d\ -f1);
else
endstr="$3";
fi;
for end in $(grep -n "$endstr" $1 | cut -d: -f1) $last; do
if [ "$end" ] && [ "$begin" -lt "$end" ]; then
sed -i "${begin},${end}d" $1;
[ "$end" == "$last" ] && echo >> $1;
sed -i "${begin}s;^;${4}\n;" $1;
break;
fi;
done;
fi;
}
# remove_section <file> <begin search string> <end search string>
remove_section() {
local begin endstr last end;
begin=$(grep -n "$2" $1 | head -n1 | cut -d: -f1);
if [ "$begin" ]; then
if [ "$3" == " " -o ! "$3" ]; then
endstr='^[[:space:]]*$';
last=$(wc -l $1 | cut -d\ -f1);
else
endstr="$3";
fi;
for end in $(grep -n "$endstr" $1 | cut -d: -f1) $last; do
if [ "$end" ] && [ "$begin" -lt "$end" ]; then
sed -i "${begin},${end}d" $1;
break;
fi;
done;
fi;
}
# insert_line <file> <if search string> <before|after> <line match string> <inserted line>
insert_line() {
local offset line;
if ! grep -q "$2" $1; then
case $3 in
before) offset=0;;
after) offset=1;;
esac;
line=$((`grep -n "$4" $1 | head -n1 | cut -d: -f1` + offset));
if [ -f $1 -a "$line" ] && [ "$(wc -l $1 | cut -d\ -f1)" -lt "$line" ]; then
echo "$5" >> $1;
else
sed -i "${line}s;^;${5}\n;" $1;
fi;
fi;
}
# replace_line <file> <line replace string> <replacement line> <scope>
replace_line() {
local lines line;
if grep -q "$2" $1; then
lines=$(grep -n "$2" $1 | cut -d: -f1 | sort -nr);
[ "$4" == "global" ] || lines=$(echo "$lines" | tail -n1);
for line in $lines; do
sed -i "${line}s;.*;${3};" $1;
done;
fi;
}
# remove_line <file> <line match string> <scope>
remove_line() {
local lines line;
if grep -q "$2" $1; then
lines=$(grep -n "$2" $1 | cut -d: -f1 | sort -nr);
[ "$3" == "global" ] || lines=$(echo "$lines" | tail -n1);
for line in $lines; do
sed -i "${line}d" $1;
done;
fi;
}
# prepend_file <file> <if search string> <patch file>
prepend_file() {
if ! grep -q "$2" $1; then
echo "$(cat $patch/$3 $1)" > $1;
fi;
}
# insert_file <file> <if search string> <before|after> <line match string> <patch file>
insert_file() {
local offset line;
if ! grep -q "$2" $1; then
case $3 in
before) offset=0;;
after) offset=1;;
esac;
line=$((`grep -n "$4" $1 | head -n1 | cut -d: -f1` + offset));
sed -i "${line}s;^;\n;" $1;
sed -i "$((line - 1))r $patch/$5" $1;
fi;
}
# append_file <file> <if search string> <patch file>
append_file() {
if ! grep -q "$2" $1; then
echo -ne "\n" >> $1;
cat $patch/$3 >> $1;
echo -ne "\n" >> $1;
fi;
}
# replace_file <file> <permissions> <patch file>
replace_file() {
cp -pf $patch/$3 $1;
chmod $2 $1;
}
# patch_fstab <fstab file> <mount match name> <fs match type> block|mount|fstype|options|flags <original string> <replacement string>
patch_fstab() {
local entry part newpart newentry;
entry=$(grep "$2" $1 | grep "$3");
if [ ! "$(echo "$entry" | grep "$6")" -o "$6" == " " -o ! "$6" ]; then
case $4 in
block) part=$(echo "$entry" | awk '{ print $1 }');;
mount) part=$(echo "$entry" | awk '{ print $2 }');;
fstype) part=$(echo "$entry" | awk '{ print $3 }');;
options) part=$(echo "$entry" | awk '{ print $4 }');;
flags) part=$(echo "$entry" | awk '{ print $5 }');;
esac;
newpart=$(echo "$part" | sed -e "s;${5};${6};" -e "s; ;;g" -e 's;,\{2,\};,;g' -e 's;,*$;;g' -e 's;^,;;g');
newentry=$(echo "$entry" | sed "s;${part};${newpart};");
sed -i "s;${entry};${newentry};" $1;
fi;
}
# patch_cmdline <cmdline entry name> <replacement string>
patch_cmdline() {
local cmdfile cmdtmp match;
if [ -f "$split_img/cmdline.txt" ]; then
cmdfile=$split_img/cmdline.txt;
else
cmdfile=$home/cmdtmp;
grep "^cmdline=" $split_img/header | cut -d= -f2- > $cmdfile;
fi;
if ! grep -q "$1" $cmdfile; then
cmdtmp=$(cat $cmdfile);
echo "$cmdtmp $2" > $cmdfile;
sed -i -e 's; *; ;g' -e 's;[ \t]*$;;' $cmdfile;
else
match=$(grep -o "$1.*$" $cmdfile | cut -d\ -f1);
sed -i -e "s;${match};${2};" -e 's; *; ;g' -e 's;[ \t]*$;;' $cmdfile;
fi;
if [ -f "$home/cmdtmp" ]; then
sed -i "s|^cmdline=.*|cmdline=$(cat $cmdfile)|" $split_img/header;
rm -f $cmdfile;
fi;
}
# patch_prop <prop file> <prop name> <new prop value>
patch_prop() {
if ! grep -q "^$2=" $1; then
echo -ne "\n$2=$3\n" >> $1;
else
local line=$(grep -n "^$2=" $1 | head -n1 | cut -d: -f1);
sed -i "${line}s;.*;${2}=${3};" $1;
fi;
}
# patch_ueventd <ueventd file> <device node> <permissions> <chown> <chgrp>
patch_ueventd() {
local file dev perm user group newentry line;
file=$1; dev=$2; perm=$3; user=$4;
shift 4;
group="$@";
newentry=$(printf "%-23s %-4s %-8s %s\n" "$dev" "$perm" "$user" "$group");
line=$(grep -n "$dev" $file | head -n1 | cut -d: -f1);
if [ "$line" ]; then
sed -i "${line}s;.*;${newentry};" $file;
else
echo -ne "\n$newentry\n" >> $file;
fi;
}
###
### configuration/setup functions:
# reset_ak [keep]
reset_ak() {
local current i;
current=$(dirname $home/*-files/current);
if [ -d "$current" ]; then
rm -rf $current/ramdisk;
for i in $bootimg boot-new.img; do
[ -e $i ] && cp -af $i $current;
done;
fi;
[ -d $split_img ] && rm -rf $ramdisk;
rm -rf $bootimg $split_img $home/*-new* $home/*-files/current;
if [ "$1" == "keep" ]; then
[ -d $home/rdtmp ] && mv -f $home/rdtmp $ramdisk;
else
rm -rf $patch $home/rdtmp;
fi;
setup_ak;
}
# setup_ak
setup_ak() {
local blockfiles parttype name part mtdmount mtdpart mtdname target;
# allow multi-partition ramdisk modifying configurations (using reset_ak)
if [ "$block" ] && [ ! -d "$ramdisk" -a ! -d "$patch" ]; then
blockfiles=$home/$(basename $block)-files;
if [ "$(ls $blockfiles 2>/dev/null)" ]; then
cp -af $blockfiles/* $home;
else
mkdir -p $blockfiles;
fi;
touch $blockfiles/current;
fi;
# slot detection enabled by is_slot_device=1 or auto (from anykernel.sh)
case $is_slot_device in
1|auto)
slot=$(getprop ro.boot.slot_suffix 2>/dev/null);
[ "$slot" ] || slot=$(grep -o 'androidboot.slot_suffix=.*$' /proc/cmdline | cut -d\ -f1 | cut -d= -f2);
if [ ! "$slot" ]; then
slot=$(getprop ro.boot.slot 2>/dev/null);
[ "$slot" ] || slot=$(grep -o 'androidboot.slot=.*$' /proc/cmdline | cut -d\ -f1 | cut -d= -f2);
[ "$slot" ] && slot=_$slot;
fi;
if [ "$slot" ]; then
if [ -d /postinstall/tmp -a ! "$slot_select" ]; then
slot_select=inactive;
fi;
case $slot_select in
inactive)
case $slot in
_a) slot=_b;;
_b) slot=_a;;
esac;
;;
esac;
fi;
if [ ! "$slot" -a "$is_slot_device" == 1 ]; then
abort "Unable to determine active boot slot. Aborting...";
fi;
;;
esac;
# target block partition detection enabled by block=boot recovery or auto (from anykernel.sh)
case $block in
auto|"") block=boot;;
esac;
case $block in
boot|recovery)
case $block in
boot) parttype="ramdisk boot BOOT LNX android_boot bootimg KERN-A kernel KERNEL";;
recovery) parttype="ramdisk_recovery recovery RECOVERY SOS android_recovery";;
esac;
for name in $parttype; do
for part in $name$slot $name; do
if [ "$(grep -w "$part" /proc/mtd 2> /dev/null)" ]; then
mtdmount=$(grep -w "$part" /proc/mtd);
mtdpart=$(echo $mtdmount | cut -d\" -f2);
if [ "$mtdpart" == "$part" ]; then
mtdname=$(echo $mtdmount | cut -d: -f1);
else
abort "Unable to determine mtd $block partition. Aborting...";
fi;
if [ -e /dev/mtd/$mtdname ]; then
target=/dev/mtd/$mtdname;
fi;
elif [ -e /dev/block/by-name/$part ]; then
target=/dev/block/by-name/$part;
elif [ -e /dev/block/bootdevice/by-name/$part ]; then
target=/dev/block/bootdevice/by-name/$part;
elif [ -e /dev/block/platform/*/by-name/$part ]; then
target=/dev/block/platform/*/by-name/$part;
elif [ -e /dev/block/platform/*/*/by-name/$part ]; then
target=/dev/block/platform/*/*/by-name/$part;
elif [ -e /dev/$part ]; then
target=/dev/$part;
fi;
[ "$target" ] && break 2;
done;
done;
if [ "$target" ]; then
block=$(ls $target 2>/dev/null);
else
abort "Unable to determine $block partition. Aborting...";
fi;
;;
*)
if [ "$slot" ]; then
[ -e "$block$slot" ] && block=$block$slot;
fi;
;;
esac;
if [ ! "$no_block_display" ]; then
ui_print "$block";
fi;
}
###
### end methods
setup_ak;