59 lines
1.7 KiB
Bash
59 lines
1.7 KiB
Bash
#! /bin/sh
|
|
|
|
destdir=/media/card
|
|
|
|
umount_partition()
|
|
{
|
|
if grep -qs "^/dev/$1 " /proc/mounts ; then
|
|
umount "${destdir}";
|
|
fi
|
|
}
|
|
|
|
mount_partition()
|
|
{
|
|
if ! mount -t auto "/dev/$1" "${destdir}"; then
|
|
# failed to mount
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
check_if_boot_dev()
|
|
{
|
|
ret_val=`cat /proc/cmdline | grep "androidboot.bootdevice" |wc -l`
|
|
if [ $ret_val -eq 1 ]; then
|
|
boot_dev=`cat /proc/cmdline | awk '{ for ( n=1; n<=NF; n++ ) if($n ~ "androidboot.bootdevice") print $n }' | awk '{split($0,a, "=");print a[2]}'`
|
|
real_sysfs_path=`realpath /sys/class/block/$1`
|
|
ret_val=`echo $real_sysfs_path | grep /sys/devices/ | grep $boot_dev | wc -l`
|
|
fi
|
|
echo $ret_val
|
|
}
|
|
|
|
|
|
create_symlink()
|
|
{
|
|
real_sysfs_path=`realpath /sys/class/block/$1`
|
|
partition_name=`cat $real_sysfs_path/uevent | awk '{ for ( n=1; n<=NF; n++ ) if($n ~ "PARTNAME") print $n }' | awk '{split($0,a, "=");print a[2]}'`
|
|
mkdir -p /dev/block/bootdevice/by-name/
|
|
partition_name=/dev/block/bootdevice/by-name/$partition_name
|
|
target_dev=/dev/$1
|
|
ln -s $target_dev $partition_name
|
|
}
|
|
|
|
case "${ACTION}" in
|
|
add|"")
|
|
if [ `df | grep ${destdir} | wc -l` -eq 0 ]; then
|
|
result=`check_if_boot_dev $MDEV`
|
|
if [ $result -eq 1 ]; then
|
|
create_symlink $MDEV &
|
|
else
|
|
umount_partition ${MDEV}
|
|
mount_partition ${MDEV}
|
|
fi
|
|
fi
|
|
;;
|
|
remove)
|
|
umount_partition ${MDEV}
|
|
;;
|
|
esac
|
|
|