#!/bin/bash -vx
#
# Sample shell script which demonstrates how to use ext4-crypto-cp
# program.
#
# This shows the example of copying an top-level encrypted directory
# whose filename is not encryped (because it is located in an
# unencrypted directory); copying an encrypted regular file in an
# encrypted directory to an encrypted directory; and creating a copy
# of an encrypted directory with an encrypted filename.
#
# To do a recursive copy, one must first copy all of the encrypted
# directories before populating them, since we can only create empty
# encrypted directories.

umount /vdc
dmesg -n 7
mke2fs -Fq -t ext4 -O encrypt /dev/vdc
debugfs -w -R "ssv encrypt_pw_salt deadbeef-dead-beef-1234-5678deadbeef" /dev/vdc
mount -t ext4 /dev/vdc /vdc
mkdir /vdc/a
echo foobar | e4crypt add_key /vdc/a
cat << EOF > /vdc/a/test_file
Lorem ipsum dolor sit amet, consectetur adipiscing elit. In accumsan
mi ac magna vestibulum commodo. Cras facilisis posuere tellus in
efficitur. Sed mollis mi eget elit vulputate pellentesque. Ut vitae
laoreet diam. Aliquam sem leo, luctus eget leo eu, hendrerit egestas
risus. Nulla non nisi ut nisl suscipit dictum. Donec eleifend dapibus
mi eu porttitor. Nulla lacinia tellus nec porttitor tincidunt. Nam
lectus nibh, fringilla sit amet enim id, consequat tincidunt
mauris. Ut blandit orci vitae elit suscipit varius. Donec vel sem
tristique, efficitur felis sit amet, sagittis metus. In laoreet
ultricies interdum. Aliquam felis est, pharetra eget nisl vel,
fringilla aliquet velit. Etiam ut augue ut ante fringilla gravida quis
a arcu.
EOF
file_inum=$(stat --format=%i /vdc/a/test_file)
mkdir /vdc/a/test_dir
dir_inum=$(stat --format=%i /vdc/a/test_dir)
umount /vdc
keyctl purge logon
mount -t ext4 -o ciphertext_access /dev/vdc /vdc
F=$(find /vdc/a -inum $file_inum -print)
D=$(find /vdc/a -inum $dir_inum -print)
mkdir /vdc/b
/vdb/ext4-crypto-cp /vdc/a /vdc/b
/vdb/ext4-crypto-cp $F /vdc/b
/vdb/ext4-crypto-cp $D /vdc/b

echo foobar | e4crypt add_key
md5sum /vdc/b/test_file /vdc/a/test_file
umount /vdc
e2fsck -fn /dev/vdc
keyctl purge logon

exit 0