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#!/bin/bash
#
# Wrapper around ecryptfs-migrate-home
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load
# Command line arguments
BASENAME="`basename $0`"
USER="$1"
SERVER="$2"
# Syntax check
if [ -z "$USER" ]; then
echo "usage: $BASENAME <user> [server]"
exit 1
fi
# Check if not already encrypted
if [ -d "/home/.ecryptfs/$USER" ]; then
echo "$USER folder seems already encrypted, aborting."
exit 1
fi
# Check sudo
if [ "`whoami`" != 'root' ]; then
sudo="sudo"
fi
# Script description
cat <<EOF
Please make sure you have backups of anything important on
/home/$USER and /mnt/crypt/home/$USER as these folders will
be overwritten.
Use this script AT YOUR OWN RISK.
Press any key to continue, or ^C to abort.
EOF
read prompt
# Make sure we have the needed dependencies
hydra_install_package ecryptfs-utils
# Start the migration
$sudo modprobe ecryptfs
$sudo ecryptfs-migrate-home -u $USER
# Remove user folder
#rm -rf /home/$USER.*
rm -rf /mnt/crypt/home/$USER
# We don't want unencrypted content to rest in our backups, so we should
# not let the user folder to be mounted on /home
#
# For more info, see the backup policy under puppet-backup module.
$sudo mkdir -p /mnt/crypt/home
$sudo mv /home/$USER /mnt/crypt/home/$USER
$sudo ln -s /mnt/crypt/home/$USER /home/$USER
echo "/mnt/crypt/home/$USER" | $sudo tee -a /home/.ecryptfs/$USER/.ecryptfs/Private.mnt
# Unwrap the passphrase once so the user can save it
echo "Please save the unwrapped passphrase in a safe place:"
$sudo ecryptfs-unwrap-passphrase /home/.ecryptfs/$USER/.ecryptfs/wrapped-passphrase
# Sync files
if [ ! -z "$SERVER" ]; then
echo "Mounting $USER's home..."
su $USER -c "ecryptfs-mount-private"
echo "Syncing files from $USER's home on $SERVER..."
rsync -avz --exclude=.ecryptfs --exclude=.Private --exclude=.unison \
/home/$USER/ $SERVER:/home/$USER/
fi
# Final recommendation
echo "Done migrating $USER home to ecryptfs"
echo "When ready, WIPE /home/$USER.*"
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