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#!/bin/sh -e
#
# ecryptfs-find - use inode numbers to match encrypted/decrypted filenames
# Copyright (C) 2011 Dustin Kirkland
# Copyright (C) 2011 Sergio Mena de la Cruz
#
# Authors: Dustin Kirkland <kirkland@ubuntu.com>
# Sergio Mena de la Cruz
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2 of the License.
#
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
if [ ! -e "$1" ]; then
echo "ERROR: [$1] not found" 1>&2
exit 1
fi
# Use one utility for both directions; same method is used
case "$1" in
*ECRYPTFS_FNEK_ENCRYPTED.*)
direction="decrypt"
;;
*)
direction="encrypt"
;;
esac
# Grab the target inode number
inum=$(ls -aid "$1" | awk '{print $1}')
mounts=
# Process /proc/mounts
while read lower upper fstype opts dump pass; do
[ "$fstype" = "ecryptfs" ] || continue
if [ "$direction" = "encrypt" ]; then
find="$lower"
else
find="$upper"
fi
# Match against filesystem or mountpoint, build list of
# mounts to search
if [ -r "$find" ] && [ -x "$find" ]; then
mounts="$mounts $find"
fi
done < /proc/mounts
# Do the search
for m in $mounts; do
find "$m/" -inum "$inum"
done
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