mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-11-27 12:05:30 +00:00
Proper support for special mounts
This commit is contained in:
topjohnwu
parent
0e69201f05
commit
f1d3e35aac
@ -16,10 +16,8 @@ MOUNTINFO=$TMPDIR/mnt
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# e.g. we rely on the option "-c" for cp (reserve contexts), and -exec for find
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TOOLPATH=/data/busybox
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BINPATH=/data/magisk
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# Legacy support for old phh, we don't change PATH now
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# Will remove in the next release
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export OLDPATH=$PATH
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OLDPATH=$PATH
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PATH=$TOOLPATH:$OLDPATH
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# Default permissions
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umask 022
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@ -34,9 +32,9 @@ log_print() {
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mktouch() {
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mkdir -p ${1%/*} 2>/dev/null
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if [ -z "$2" ]; then
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touch $1 2>/dev/null
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touch "$1" 2>/dev/null
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else
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echo $2 > $1 2>/dev/null
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echo "$2" > "$1" 2>/dev/null
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fi
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}
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@ -46,6 +44,7 @@ unblock() {
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}
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run_scripts() {
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PATH=$OLDPATH
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BASE=$MOUNTPOINT
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for MOD in $BASE/* ; do
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if [ ! -f "$MOD/disable" ]; then
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@ -57,12 +56,13 @@ run_scripts() {
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fi
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fi
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done
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PATH=$TOOLPATH:$OLDPATH
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}
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loopsetup() {
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LOOPDEVICE=
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for DEV in $(ls /dev/block/loop*); do
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if [ `$TOOLPATH/losetup $DEV $1 >/dev/null 2>&1; echo $?` -eq 0 ]; then
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if [ `losetup $DEV $1 >/dev/null 2>&1; echo $?` -eq 0 ]; then
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LOOPDEVICE=$DEV
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break
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fi
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@ -102,7 +102,7 @@ travel() {
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elif [ -L "$ITEM" ]; then
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# Symlinks are small, copy them
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mkdir -p "$DUMMDIR/$2" 2>/dev/null
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$TOOLPATH/cp -afc "$ITEM" "$DUMMDIR/$2/$ITEM"
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cp -afc "$ITEM" "$DUMMDIR/$2/$ITEM"
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else
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# Create new dummy file and mount it
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mktouch "$DUMMDIR/$2/$ITEM"
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@ -126,17 +126,18 @@ clone_dummy() {
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for ITEM in "$1/"* ; do
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if [ -d "$DUMMDIR$ITEM" ]; then
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(clone_dummy "$ITEM")
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else
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elif [ ! -e "$DUMMDIR$ITEM" ]; then
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if [ -d "$ITEM" ]; then
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# Create dummy directory
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mkdir -p "$DUMMDIR$ITEM"
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elif [ -L "$ITEM" ]; then
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# Symlinks are small, copy them
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$TOOLPATH/cp -afc "$ITEM" "$DUMMDIR$ITEM"
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cp -afc "$ITEM" "$DUMMDIR$ITEM"
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else
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# Create dummy file
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mktouch "$DUMMDIR$ITEM"
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fi
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chcon -f "u:object_r:system_file:s0" "$DUMMDIR$ITEM"
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fi
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done
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}
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@ -203,7 +204,7 @@ merge_image() {
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rm -rf /cache/data_img/$MOD
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fi
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done
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$TOOLPATH/cp -afc . /cache/data_img
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cp -afc . /cache/data_img
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log_print "Merge complete"
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cd /
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fi
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@ -213,8 +214,8 @@ merge_image() {
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fi
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fi
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$TOOLPATH/losetup -d $LOOPDATA
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$TOOLPATH/losetup -d $LOOPMERGE
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losetup -d $LOOPDATA
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losetup -d $LOOPMERGE
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rmdir /cache/data_img
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rmdir /cache/merge_img
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@ -289,7 +290,8 @@ case $1 in
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mv /cache/stock_boot.img /data 2>/dev/null
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chcon -hR "u:object_r:system_file:s0" $BINPATH $TOOLPATH
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find $BINPATH -exec chcon -h "u:object_r:system_file:s0" {} \;
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find $TOOLPATH -exec chcon -h "u:object_r:system_file:s0" {} \;
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chmod -R 755 $BINPATH $TOOLPATH
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# Image merging
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@ -313,7 +315,7 @@ case $1 in
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# Remove empty directories, legacy paths and symlinks
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rm -rf $COREDIR/bin $COREDIR/dummy $COREDIR/mirror
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$TOOLPATH/find $MOUNTPOINT -type d -depth ! -path "*core*" -exec rmdir {} \; 2>/dev/null
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find $MOUNTPOINT -type d -depth ! -path "*core*" -exec rmdir {} \; 2>/dev/null
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# Remove modules
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for MOD in $MOUNTPOINT/* ; do
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@ -325,7 +327,7 @@ case $1 in
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# Unmount, shrink, remount
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if [ `umount $MOUNTPOINT >/dev/null 2>&1; echo $?` -eq 0 ]; then
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$TOOLPATH/losetup -d $LOOPDEVICE
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losetup -d $LOOPDEVICE
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target_size_check $IMG
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NEWDATASIZE=$(((curUsedM / 32 + 2) * 32))
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if [ "$curSizeM" -gt "$NEWDATASIZE" ]; then
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@ -354,11 +356,36 @@ case $1 in
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fi
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done
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# linker(64), t*box, and app_process* are required if we need to dummy mount bin folder
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# Proper permissions for generated items
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find $TMPDIR -exec chcon -h "u:object_r:system_file:s0" {} \;
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# linker(64), t*box required
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if [ -f "$MOUNTINFO/dummy/system/bin" ]; then
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rm -f $DUMMDIR/system/bin/linker* $DUMMDIR/system/bin/t*box $DUMMDIR/system/bin/app_process*
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cd /system/bin
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$TOOLPATH/cp -afc linker* t*box app_process* $DUMMDIR/system/bin/
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cp -afc linker* t*box $DUMMDIR/system/bin/
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fi
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# Some libraries are required
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LIBS="libc++.so libc.so libcutils.so libm.so libstdc++.so libcrypto.so liblog.so libpcre.so libselinux.so libpackagelistparser.so"
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if [ -f "$MOUNTINFO/dummy/system/lib" ]; then
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cd /system/lib
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cp -afc $LIBS $DUMMDIR/system/lib
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fi
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if [ -f "$MOUNTINFO/dummy/system/lib64" ]; then
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cd /system/lib64
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cp -afc $LIBS $DUMMDIR/system/lib64
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fi
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# vendor libraries are device dependent, had no choice but copy them all if needed....
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if [ -f "$MOUNTINFO/dummy/system/vendor" ]; then
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cp -afc /system/vendor/lib/. $DUMMDIR/system/vendor/lib
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[ -d "/system/vendor/lib64" ] && cp -afc /system/vendor/lib64/. $DUMMDIR/system/vendor/lib64
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fi
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if [ -f "$MOUNTINFO/dummy/system/vendor/lib" ]; then
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cp -afc /system/vendor/lib/. $DUMMDIR/system/vendor/lib
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fi
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if [ -f "$MOUNTINFO/dummy/system/vendor/lib64" ]; then
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cp -afc /system/vendor/lib64/. $DUMMDIR/system/vendor/lib64
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fi
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# Remove crap folder
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@ -368,19 +395,16 @@ case $1 in
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# Stage 1
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log_print "Bind mount dummy system"
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$TOOLPATH/find $MOUNTINFO/dummy -type f 2>/dev/null | while read ITEM ; do
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find $MOUNTINFO/dummy -type f 2>/dev/null | while read ITEM ; do
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TARGET=${ITEM#$MOUNTINFO/dummy}
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ORIG="$DUMMDIR$TARGET"
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clone_dummy "$TARGET"
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bind_mount "$ORIG" "$TARGET"
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done
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# Proper permissions for generated items
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chcon -hR "u:object_r:system_file:s0" $TMPDIR
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# Stage 2
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log_print "Bind mount module items"
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$TOOLPATH/find $MOUNTINFO/system -type f 2>/dev/null | while read ITEM ; do
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find $MOUNTINFO/system -type f 2>/dev/null | while read ITEM ; do
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TARGET=${ITEM#$MOUNTINFO}
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ORIG=`cat $ITEM`$TARGET
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bind_mount $ORIG $TARGET
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@ -399,8 +423,8 @@ case $1 in
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# Expose busybox
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if [ -f "$COREDIR/busybox/enable" ]; then
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log_print "Enabling BusyBox"
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$TOOLPATH/cp -afc /data/busybox/. $COREDIR/busybox
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$TOOLPATH/cp -afc /system/xbin/. $COREDIR/busybox
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cp -afc /data/busybox/. $COREDIR/busybox
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cp -afc /system/xbin/. $COREDIR/busybox
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chmod -R 755 $COREDIR/busybox
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chcon -hR "u:object_r:system_file:s0" $COREDIR/busybox
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bind_mount $COREDIR/busybox /system/xbin
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@ -413,8 +437,8 @@ case $1 in
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# Stage 4
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log_print "Bind mount mirror items"
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# Find all empty directores and dummy files, they should be mounted by original files in /system
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TOOLPATH=/data/busybox $TOOLPATH/find $DUMMDIR -type d \
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-exec sh -c '[ -z "`$TOOLPATH/ls -A $1`" ] && echo $1' -- {} \; \
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TOOLPATH=/data/busybox find $DUMMDIR -type d \
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-exec sh -c '[ -z "`ls -A $1`" ] && echo $1' -- {} \; \
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-o \( -type f -size 0 -print \) | \
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while read ITEM ; do
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ORIG=${ITEM/dummy/mirror}
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