mirror of
https://github.com/Llewellynvdm/Tomb.git
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1079 lines
28 KiB
Bash
Executable File
1079 lines
28 KiB
Bash
Executable File
#!/bin/zsh
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#
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# Tomb, the Crypto Undertaker
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#
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# a tool to easily operate file encryption of private and secret data
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#
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# Copyleft (C) 2007-2011 Denis Roio <jaromil@dyne.org>
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#
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# This source code is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This source code is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# Please refer to the GNU Public License for more details.
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#
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# You should have received a copy of the GNU Public License along with
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# this source code; if not, write to:
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# Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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VERSION=1.0
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DATE=May/2011
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TOMBEXEC=$0
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TOMBOPENEXEC="tomb-open"
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STEGHIDE=1
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# PATH=/usr/bin:/usr/sbin:/bin:/sbin
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autoload colors; colors
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# standard output message routines
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# it's always useful to wrap them, in case we change behaviour later
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notice() { if ! [ $QUIET ]; then print "$fg_bold[green][*]$fg_no_bold[white] $1" >&2; fi }
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act() { if ! [ $QUIET ]; then print "$fg_bold[white] . $fg_no_bold[white] $1" >&2; fi }
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error() { if ! [ $QUIET ]; then print "$fg[red][!]$fg[white] $1" >&2; fi }
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func() { if [ $DEBUG ]; then print "$fg[blue][D]$fg[white] $1" >&2; fi }
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check_bin() {
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# which dd command to use
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which dcfldd > /dev/null
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if [ $? = 0 ]; then
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DD="dcfldd"
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else
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DD=dd
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fi
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# which wipe command to use
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which wipe > /dev/null
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if [ $? = 0 ]; then
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WIPE=(wipe -f -s)
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else
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WIPE=(rm -f)
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fi
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# check for filesystem creation progs
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which mkfs.ext4 > /dev/null
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if [ $? = 0 ]; then
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MKFS=(mkfs.ext4 -q -F -j -L)
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else
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MKFS=(mkfs.ext3 -q -F -j -L)
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fi
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# check for sudo
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which sudo > /dev/null
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if [ $? != 0 ]; then
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error "Cannot find sudo. Please install it"
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exit 1
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fi
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# check for steghide
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which steghide > /dev/null
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if [ $? != 0 ]; then
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STEGHIDE=0
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fi
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# check for tomb-open script
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if [ "$0" = "./tomb" ]; then
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TOMBOPENEXEC="./tomb-open"
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elif [ "$0" != "tomb" ]; then
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TOMBOPENEXEC="`dirname $0`/tomb-open"
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fi
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}
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# safe dir creation function
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safe_dir() {
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which mktemp &> /dev/null
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if [[ $? = 0 ]]; then
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mktemp -d /dev/shm/$1.XXXX.$$
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return
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fi
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dir="/dev/shm/$1.$RANDOM.$RANDOM.$$"
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(umask 077 && mkdir "$dir") || print "-1"
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print "$dir"
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}
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# we use pinentry now
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# comes from gpg project and is much more secure
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# it also conveniently uses the right toolkit
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ask_password() {
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# pinentry has no custom icon setting
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# so we need to temporary modify the gtk theme
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if [ -r /usr/local/share/themes/tomb/gtk-2.0-key/gtkrc ]; then
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GTK2_RC=/usr/local/share/themes/tomb/gtk-2.0-key/gtkrc
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elif [ -r /usr/share/themes/tomb/gtk-2.0-key/gtkrc ]; then
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GTK2_RC=/usr/share/themes/tomb/gtk-2.0-key/gtkrc
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fi
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cat <<EOF | GTK2_RC_FILES=${GTK2_RC} pinentry | awk '/^D/ { print $2 }'
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OPTION ttyname=$TTY
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OPTION lc-ctype=$LANG
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SETTITLE Insert tomb password
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SETDESC Open tomb: $1
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SETPROMPT Password:
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GETPIN
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EOF
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}
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# drop privileges
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exec_as_user() {
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if ! [ $SUDO_USER ]; then
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exec $@[@]
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return $?
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fi
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func "exec_as_user '$SUDO_USER': ${(f)@}"
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sudo -u $SUDO_USER "${@[@]}"
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return $?
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}
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# escalate privileges
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check_priv() {
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if [ $UID != 0 ]; then
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func "Using sudo for root execution of 'tomb ${(f)ARGS}'"
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# check if sudo has a timestamp active
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sudok=false
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sudo -n ${TOMBEXEC} 2> /dev/null
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if [ $? != 0 ]; then # if not then ask a password
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cat <<EOF | pinentry | awk '/^D/ { print $2 }' | sudo -S -v
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OPTION ttyname=$TTY
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OPTION lc-ctype=$LANG
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SETTITLE Super user privileges required
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SETDESC Sudo execution of Tomb ${ARGS[@]}
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SETPROMPT Insert your USER password:
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GETPIN
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EOF
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fi
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sudo "${TOMBEXEC}" ${(s: :)ARGS}
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exit $?
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fi # are we root already
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return 0
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}
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get_arg_tomb() {
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# set up variables to be used by caller:
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# tombfile - filename without path
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# tombdir - directory where the tomb is
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# tombname - name of the tomb (filename without extension)
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# the full path is made with $tombdir/$tombfile
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if [ -z $1 ]; then
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error "internal: get_arg_tomb called without argument"
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return 1
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fi
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arg=${1}
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if ! [ -r ${arg} ]; then
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error "file not found: $arg"
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return 1
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fi
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tombfile=`basename $arg`
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tombdir=`dirname $arg`
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file ${tombdir}/${tombfile} | grep -i 'luks encrypted file' 2>&1 >/dev/null
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if [ $? != 0 ]; then
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error "$arg is not a valid tomb file, operation aborted"
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return 1
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fi
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tombname=${tombfile%%\.*}
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act "tomb found: ${tombdir}/${tombfile}"
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# now check if the key is kept beside or in args
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# we use the extension .key
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# the problem with .tomb.gpg is that decoding by hand using gpg it
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# can override the tomb contents if the key is in the same
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# directory than the tomb
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if [ $KEY ]; then
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tombkey=$KEY # commandline -k flag
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act "tomb key specified manually: $tombkey"
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elif [ -r ${tombdir}/${tombname}.tomb.key ]; then
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tombkey=${tombdir}/${tombname}.tomb.key
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act "key found for tomb '${tombname}': ${tombkey}"
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else
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error "key not found for tomb '${tombname}'"
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return 1
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fi
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return 0
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}
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usage() {
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cat <<EOF
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Tomb $VERSION - a strong and gentle undertaker for your secrets
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Copyright (C) 2007-2011 Dyne.org Foundation, License GNU GPL v3+
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This is free software: you are free to change and redistribute it
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The latest Tomb sourcecode is published on <http://tomb.dyne.org>
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Syntax: tomb [options] command [file] [place]
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Commands:
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create create a new tomb FILE and its keys
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open open an existing tomb FILE on PLACE
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list list all open tombs or the one called FILE
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close close the open tomb called FILE (or all)
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slam close tomb FILE and kill all pids using it
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EOF
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if [ "$STEGHIDE" = 1 ]; then
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cat <<EOF
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bury hide a tomb key FILE inside a jpeg PLACE
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exhume extract a tomb key FILE from a jpeg PL
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EOF
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fi
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cat <<EOF
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Options:
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-s size of the tomb file when creating one (in MB)
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-k path to the key to use for opening a tomb
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-n don't process the hooks found in tomb
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-h print this help
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-v version information for this tool
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-q run quietly without printing informations
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-D print debugging information at runtime
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For more informations on Tomb read the manual: man tomb
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Please report bugs on <http://bugs.dyne.org>.
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EOF
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}
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generate_translatable_strings() {
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cat <<EOF
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# Tomb - The Crypto Undertaker.
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# Copyright (C) 2007-2011 Dyne.org Foundation
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# Denis Roio <jaromil@dyne.org>, 2011.
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#
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#, fuzzy
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msgid ""
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msgstr ""
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"Project-Id-Version: Tomb $VERSION\n"
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"PO-Revision-Date: `date`\n"
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"Last-Translator: Denis Roio <jaromil@dyne.org>\n"
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"Language-Team: Tomb developers <crypto@lists.dyne.org>\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=CHARSET\n"
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"Content-Transfer-Encoding: 8bit\n"
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#
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#: commandline help
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#
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msgid ""
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EOF
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usage | awk '
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{ print "\"" $0 "\"" }'
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cat <<EOF
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msgstr ""
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#
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# tomb internal messages
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#
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EOF
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cat $TOMBEXEC | awk '
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/notice ".*"$/ { sub( /notice/ , "");
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print "#: notice"; print "msgid " $0; print "msgstr \"\"\n" }
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/act ".*"$/ { sub( /act/ , "");
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print "#: act"; print "msgid " $0; print "msgstr \"\"\n" }
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'
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}
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create_tomb() {
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if ! [ ${CMD2} ]; then
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error "no tomb name specified for creation"
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return 1
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fi
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tombfile=`basename ${CMD2}`
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tombdir=`dirname ${CMD2}`
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# make sure the file has a .tomb extension
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tombname=${tombfile%%\.*}
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tombfile=${tombname}.tomb
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if [ -e ${tombdir}/${tombfile} ]; then
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error "tomb exists already. I'm not digging here:"
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ls -lh ${tombdir}/${tombfile}
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return 1
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fi
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notice "Creating a new tomb in ${tombdir}/${tombfile}"
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if [ -z $SIZE ]; then
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if [ $CMD3 ]; then
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tombsize=${CMD3}
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else
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act "No size specified, summoning the Tomb Undertaker to guide us in the creation."
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"$TOMBOPENEXEC" &
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wait $!
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return 0
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fi
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else
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tombsize=${SIZE}
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fi
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tombsize_4k=`expr $tombsize \* 1024 / 4`
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act "Generating ${tombfile} of ${tombsize}Mb (${tombsize_4k} blocks of 4Kb)"
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$DD if=/dev/urandom bs=4k count=${tombsize_4k} of=${tombdir}/${tombfile}
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if [ $? = 0 -a -e ${tombdir}/${tombfile} ]; then
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act "OK: `ls -lh ${tombdir}/${tombfile}`"
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else
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error "Error creating the tomb ${tombdir}/${tombfile}, operation aborted."
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exit 1
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fi
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nstloop=`losetup -f` # get the number for next loopback device
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losetup -f ${tombdir}/${tombfile} # allocates the next loopback for our file
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# create the keyfile in tmpfs so that we leave less traces in RAM
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keytmp=`safe_dir tomb`
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if [ "$keytmp" = "-1" ]; then
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error "error creating temp dir"
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exit 1
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fi
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#rm -f $keytmp
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# ?????? creo, cancello e ricreo ??????
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#mkdir -p $keytmp
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mount tmpfs "${keytmp}" -t tmpfs -o size=1m
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if [ $? != 0 ]; then
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error "cannot mount tmpfs filesystem in volatile memory"
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error "operation aborted."
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losetup -d $nstloop
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rm -r "${keytmp}"
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exit 1
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fi
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act "Generating secret key..."
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act "this operation takes time, keep using this computer on other tasks,"
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act "once done you will be asked to choose a password for your tomb."
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act "To make it faster you can move the mouse around"
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touch ${keytmp}/tomb.tmp
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chmod 0600 ${keytmp}/tomb.tmp
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if [[ $DD = "dcfldd" ]]; then
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$DD bs=1 count=256 if=/dev/random of=${keytmp}/tomb.tmp statusinterval=1
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else
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$DD bs=1 count=256 if=/dev/random of=${keytmp}/tomb.tmp
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fi
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if ! [ -r ${keytmp}/tomb.tmp ]; then
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error "cannot generate encryption key, operation aborted."
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umount ${keytmp}
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losetup -d $nstloop
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rm -r $keytmp
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exit 1
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fi
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notice "Setup your secret key file ${tombname}.tomb.key"
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# here user is prompted for key password
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for c in 1 2 3; do
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# 3 tries to write two times a matching password
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tombpass=`exec_as_user ${TOMBEXEC} askpass ${tombname}`
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tombpasstmp=$tombpass
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tombpass=`exec_as_user ${TOMBEXEC} askpass "${tombname} (again)"`
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if [ "$tombpasstmp" = "$tombpass" ]; then
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break;
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fi
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unset tombpasstmp
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unset tombpass
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done
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if [ -z $tombpass ]; then
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error "passwords don't match, aborting operation"
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umount ${keytmp}
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losetup -d $nstloop
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rm -r $keytmp
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exit 1
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fi
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print "${tombpass}" | gpg \
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--openpgp --batch --no-options --no-tty --passphrase-fd 0 2>/dev/null \
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-o "${tombdir}/${tombname}.tomb.key" -c -a ${keytmp}/tomb.tmp
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# if [ $? != 0 ]; then
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# error "setting password failed: gnupg returns 2"
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# umount ${keytmp}
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# losetup -d $nstloop
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# rm -r $keytmp
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# exit 1
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# fi
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act "formatting Luks mapped device"
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# we use aes-cbc-essiv with sha256
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# for security, performance and compatibility
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cryptsetup --batch-mode \
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--cipher aes-cbc-essiv:sha256 --key-size 256 \
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luksFormat ${nstloop} ${keytmp}/tomb.tmp
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if ! [ $? = 0 ]; then
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act "operation aborted."
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exit 0
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fi
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cryptsetup --key-file ${keytmp}/tomb.tmp --cipher aes luksOpen ${nstloop} tomb.tmp
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${WIPE[@]} ${keytmp}/tomb.tmp
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umount ${keytmp}
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rm -r ${keytmp}
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# cryptsetup luksDump ${nstloop}
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act "formatting your Tomb with Ext3/Ext4 filesystem"
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${MKFS} ${tombname} /dev/mapper/tomb.tmp
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if [ $? != 0 ]; then
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error "Tomb format returns error"
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error "your tomb ${tombfile} maybe corrupt"
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fi
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sync
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cryptsetup luksClose tomb.tmp
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losetup -d ${nstloop}
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# set permissions on the tomb
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ME=${SUDO_USER:-$(whoami)}
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chmod 0600 ${tombfile}
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chown $(id -u $ME):$(id -g $ME) ${tombfile}
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act "done creating $tombname encrypted storage (using Luks dm-crypt AES/SHA256)"
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notice "Your tomb is ready in ${tombdir}/${tombfile} and secured with key ${tombfile}.key"
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}
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mount_tomb() {
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get_arg_tomb $CMD2
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if [ $? != 0 ]; then
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error "operation aborted."
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return 1
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fi
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if ! [ $CMD3 ]; then
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tombmount=/media/${tombfile}
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act "mountpoint not specified, using default: $tombmount"
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elif ! [ -x $CMD3 ]; then
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error "mountpoint $CMD3 doesn't exist, operation aborted."
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if [ -n "$usbkey_mount" ]; then
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umount $usbkey_mount
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rmdir $usbkey_mount
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unset usbkey_mount
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fi
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return 1
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else
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tombmount=$CMD3
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fi
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notice "mounting $tombfile on mountpoint $tombmount"
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# we need root from here on
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mkdir -p $tombmount
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nstloop=`losetup -f`
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if [ $? = 255 ]; then
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error "too many tomb opened. Please close any of them to open another tomb"
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exit 1
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fi
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losetup -f ${tombdir}/${tombfile}
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act "check for a valid LUKS encrypted device"
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cryptsetup isLuks ${nstloop}
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if [ $? != 0 ]; then
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# is it a LUKS encrypted nest? see cryptsetup(1)
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error "$tombfile is not a valid Luks encrypted storage file"
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$norm || rmdir $tombmount 2>/dev/null
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return 1
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fi
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# save date of mount in minutes since 1970
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mapdate=`date +%s`
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mapper="tomb.${tombname}.${mapdate}.`basename $nstloop`"
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keyname=`basename $tombkey | cut -d. -f1`
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notice "Password is required for key ${keyname}"
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for c in 1 2 3; do
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if [ $c = 1 ]; then
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tombpass=`exec_as_user ${TOMBEXEC} askpass ${keyname}`
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else
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tombpass=`exec_as_user ${TOMBEXEC} askpass "$keyname (retry $c)"`
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fi
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print "${tombpass}" \
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| gpg --batch --passphrase-fd 0 --no-tty --no-options \
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-d "${tombkey}" 2> /dev/null \
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| cryptsetup --key-file - luksOpen ${nstloop} ${mapper}
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unset tombpass
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if [ -r /dev/mapper/${mapper} ]; then
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break; # password was correct
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fi
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done
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|
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if ! [ -r /dev/mapper/${mapper} ]; then
|
|
error "failure mounting the encrypted file"
|
|
losetup -d ${nstloop}
|
|
$norm || rmdir ${tombmount} 2>/dev/null
|
|
return 1
|
|
fi
|
|
|
|
act "encrypted storage filesystem check"
|
|
fsck -p -C0 /dev/mapper/${mapper}
|
|
act "tomb engraved as $tombname"
|
|
tune2fs -L ${tombname} /dev/mapper/${mapper} > /dev/null
|
|
|
|
mount -o rw,noatime,nodev /dev/mapper/${mapper} ${tombmount}
|
|
|
|
# Ensure the user can write the disk - 10x Hellekin :)
|
|
ME=${SUDO_USER:-$(whoami)}
|
|
chmod 0750 ${tombmount}
|
|
chown $(id -u $ME):$(id -g $ME) ${tombmount}
|
|
|
|
notice "encrypted storage $tombfile succesfully mounted on $tombmount"
|
|
if ! [ $NOBIND ]; then
|
|
exec_safe_bind_hooks ${tombmount}
|
|
exec_safe_post_hooks ${tombmount} open
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
encode_key() {
|
|
tombkey=$CMD2
|
|
imagefile=$CMD3
|
|
|
|
file $tombkey | grep PGP > /dev/null
|
|
if [ $? != 0 ]; then
|
|
error "encode failed: $tombkey is not a tomb key"
|
|
return 1
|
|
fi
|
|
file $imagefile | grep JPEG > /dev/null
|
|
if [ $? != 0 ]; then
|
|
error "encode failed: $imagefile is not a jpeg image"
|
|
return 1
|
|
fi
|
|
|
|
notice "Encoding key $tombkey inside image $imagefile"
|
|
act "please choose a password for the encoding"
|
|
|
|
# here user is prompted for key password
|
|
for c in 1 2 3; do
|
|
# 3 tries to write two times a matching password
|
|
tombpass=`exec_as_user ${TOMBEXEC} askpass ${tombkey}`
|
|
tombpasstmp=$tombpass
|
|
tombpass=`exec_as_user ${TOMBEXEC} askpass "${tombkey} (again)"`
|
|
if [ "$tombpasstmp" = "$tombpass" ]; then
|
|
break;
|
|
fi
|
|
unset tombpasstmp
|
|
unset tombpass
|
|
done
|
|
|
|
if [ -z $tombpass ]; then
|
|
error "passwords don't match, aborting operation."
|
|
return 1
|
|
fi
|
|
|
|
awk '
|
|
/^-----/ {next}
|
|
/^Version/ {next}
|
|
{print $0}' ${tombkey} \
|
|
| steghide embed --embedfile - --coverfile ${imagefile} \
|
|
-p ${tombpass} -z 9 -e serpent cbc
|
|
if [ $? != 0 ]; then
|
|
error "encoding error: steghide reports problems"
|
|
res=1
|
|
else
|
|
notice "tomb key encoded succesfully into image ${imagefile}"
|
|
res=0
|
|
fi
|
|
|
|
unset tombpass
|
|
|
|
return $res
|
|
}
|
|
|
|
decode_key() {
|
|
tombname=$CMD2
|
|
imagefile=$CMD3
|
|
res=1
|
|
|
|
file $imagefile | grep JPEG > /dev/null
|
|
if [ $? != 0 ]; then
|
|
error "encode failed: $imagefile is not a jpeg image"
|
|
return 1
|
|
fi
|
|
|
|
keyfile=${tombname%%\.*}.tomb.key
|
|
notice "Trying to exhume a key out of image $imagefile"
|
|
for c in 1 2 3; do
|
|
if [ $c = 1 ]; then
|
|
tombpass=`exec_as_user ${TOMBEXEC} askpass ${keyfile}`
|
|
else
|
|
tombpass=`exec_as_user ${TOMBEXEC} askpass "$keyfile (retry $c)"`
|
|
fi
|
|
steghide extract -sf ${imagefile} -p ${tombpass} -xf - \
|
|
| awk '
|
|
BEGIN {
|
|
print "-----BEGIN PGP MESSAGE-----"
|
|
}
|
|
{ print $0 }
|
|
END {
|
|
print "-----END PGP MESSAGE-----"
|
|
}' > ${keyfile}
|
|
|
|
if [ "`cat ${keyfile} | wc -l`" != "3" ]; then
|
|
act "${keyfile} succesfully decoded"
|
|
res=0
|
|
break;
|
|
fi
|
|
done
|
|
|
|
unset tombpass
|
|
|
|
if [ $res != 0 ]; then
|
|
error "nothing found."
|
|
fi
|
|
|
|
return $res
|
|
}
|
|
|
|
exec_safe_bind_hooks() {
|
|
local MOUNTPOINT="${1}"
|
|
local ME=${SUDO_USER:-$(whoami)}
|
|
local HOME=$(grep $ME /etc/passwd | sed "s/^${ME}:.*:.*:.*:.*:\([\/a-z]*\):.*$/\1/" 2>/dev/null)
|
|
if [ $? -ne 0 ]; then
|
|
error "how pitiful! A tomb, and no HOME"
|
|
return 1
|
|
fi
|
|
if [ -z "$MOUNTPOINT" -o ! -d "$MOUNTPOINT" ]; then
|
|
error "cannot exec bind hooks without a mounted tomb."
|
|
return 1
|
|
fi
|
|
if ! [ -r "$MOUNTPOINT/bind-hooks" ]; then
|
|
func "bind-hooks not found in $MOUNTPOINT"
|
|
return 1
|
|
fi
|
|
typeset -al mounted
|
|
typeset -Al maps
|
|
maps=($(<"$MOUNTPOINT/bind-hooks"))
|
|
for dir in ${(k)maps}; do
|
|
if [ "${dir[1]}" = "/" -o "${dir[1,2]}" = ".." ]; then
|
|
error "bind-hooks map format: local/to/tomb local/to/\$HOME"
|
|
continue
|
|
fi
|
|
if [ "${${maps[$dir]}[1]}" = "/" -o "${${maps[$dir]}[1,2]}" = ".." ]; then
|
|
error "bind-hooks map format: local/to/tomb local/to/\$HOME. Rolling back"
|
|
for dir in ${mounted}; do umount $dir; done
|
|
return 1
|
|
fi
|
|
if [ ! -r "$HOME/${maps[$dir]}" ]; then
|
|
error "bind-hook target not existent, skipping $HOME/${maps[$dir]}"
|
|
elif [ ! -r "$MOUNTPOINT/$dir" ]; then
|
|
error "bind-hook source not found in tomb, skipping ${MOUNTPOINT}/${dir}"
|
|
else
|
|
mount -o bind $MOUNTPOINT/$dir $HOME/${maps[$dir]}
|
|
mounted+=("$HOME/${maps[$dir]}")
|
|
fi
|
|
done
|
|
}
|
|
|
|
exec_safe_post_hooks() {
|
|
local mnt=$1 # first argument is where the tomb is mounted
|
|
local ME=${SUDO_USER:-$(whoami)}
|
|
if ! [ -x ${mnt}/post-hooks ]; then return; fi
|
|
# if 'post-hooks' is found inside the tomb, check it: if it is an
|
|
# executable, launch it as a user this might need a dialog for
|
|
# security on what is being run, however we expect you know well
|
|
# what is inside your tomb. this feature opens the possibility to
|
|
# make encrypted executables.
|
|
cat ${mnt}/post-hooks | head -n1 | grep '^#!/'
|
|
if [ $? = 0 ]; then
|
|
act "post hooks found, executing as user $SUDO_USER"
|
|
exec_as_user ${mnt}/post-hooks $2
|
|
fi
|
|
}
|
|
|
|
umount_tomb() {
|
|
local tombs how_many_tombs
|
|
local pathmap mapper tombname tombmount loopdev
|
|
local ans pidk pname
|
|
|
|
if ! [ $1 ]; then
|
|
tombs=`find /dev/mapper -name 'tomb.*'`
|
|
how_many_tombs=`wc -w <<< "$tombs"`
|
|
if [ "$how_many_tombs" = "0" ]; then
|
|
error "There is no open tomb to be closed"
|
|
return 1
|
|
elif [ "$how_many_tombs" = "1" ]; then
|
|
#mapper=`find /dev/mapper -name 'tomb.*'`
|
|
notice "Closing $tombs"
|
|
umount_tomb ${tombs}
|
|
return 1
|
|
else
|
|
error "Too many tombs mounted, please specify which to unmount:"
|
|
ls /dev/mapper/tomb.*
|
|
error "or issue the command 'tomb close all' to clos'em all."
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
if [ "$1" = "all" ]; then
|
|
tombs=`find /dev/mapper -name 'tomb.*'`
|
|
if ! [ $tombs ]; then
|
|
notice "Tombs are all closed, cemetery is quiet."
|
|
return 0
|
|
fi
|
|
for t in ${(f)tombs}; do
|
|
umount_tomb ${t}
|
|
done
|
|
return 0
|
|
fi
|
|
|
|
|
|
# tomb close argument deduction
|
|
pathmap=`dirname "$1"`
|
|
|
|
if [ "${pathmap}" = "/dev/mapper" ]; then
|
|
|
|
mapper="$1" # argument is the mapper (or none which autofills mapper)
|
|
tombname="`print $mapper | cut -d. -f2`"
|
|
tombmount=`mount -l | \
|
|
awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $3 } '`
|
|
|
|
elif [ "$pathmap" = "." ]; then
|
|
|
|
tombname="$1" # argument is the name
|
|
mapper=`mount -l | \
|
|
awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $1 } '`
|
|
tombmount=`mount -l | \
|
|
awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $3 } '`
|
|
|
|
else
|
|
|
|
tombmount="$1" # argument should be the mount
|
|
mapper=`mount | awk -vmnt="$tombmount" '/^\/dev\/mapper\/tomb/ { if($3==mnt) print $1 }'`
|
|
tombname="`print $mapper | cut -d. -f2`"
|
|
|
|
fi
|
|
|
|
# avoid block when the same tomb is mounted, take only the first
|
|
for tm in ${(f)tombmount}; do tombmount=${tm}; break; done
|
|
|
|
func "tomb close argument: $1"
|
|
func "name:\t$tombname"
|
|
func "mount:\t$tombmount"
|
|
func "mapper:\t$mapper"
|
|
|
|
if ! [ -e "$mapper" ]; then
|
|
error "Tomb not found: $1"
|
|
error "Please specify an existing tomb."
|
|
return 0
|
|
fi
|
|
|
|
if [ $SLAM ]; then
|
|
notice "Slamming tomb $tombname mounted on $tombmount"
|
|
act "Kill all processes busy inside the tomb"
|
|
pidk=`lsof -t "$tombmount"`
|
|
for p in "$pidk"; do
|
|
pname=`pidof $p`
|
|
func "killing PID $p of $pname..."
|
|
kill -9 $p
|
|
done
|
|
else
|
|
notice "Closing tomb $tombname mounted on $tombmount"
|
|
fi
|
|
|
|
# check if there are binded dirs and close them
|
|
tombmount_esc=`sed 's:\/:\\\/:g' <<< $tombmount `
|
|
unbind=`mount | awk "/^$tombmount_esc.*bind/"' { print $3 }'`
|
|
for b in ${(f)unbind}; do
|
|
hook="`basename $b`"
|
|
act "closing tomb hook: $hook"
|
|
umount $b
|
|
if ! [ $? = 0 ]; then
|
|
if [ $SLAM ]; then
|
|
notice "Slamming tomb: killing all processes using this hook"
|
|
pidk=`lsof -t $b`
|
|
for p in "$pidk"; do
|
|
pname=`pidof $p`
|
|
notice "Killing PID $p of $pname..."
|
|
kill -9 $p
|
|
done
|
|
umount $b
|
|
else
|
|
error "Tomb hook is busy, cannot close tomb."
|
|
return 1
|
|
fi
|
|
fi
|
|
done
|
|
|
|
# Execute post-hooks for eventual cleanup
|
|
if ! [ $NOBIND ]; then
|
|
exec_safe_post_hooks ${tombmount%%/} close
|
|
fi
|
|
|
|
if [ $tombmount ]; then # tomb is actively mounted
|
|
act "closing tomb $tombname mounted on $tombmount"
|
|
umount ${tombmount} 2> /dev/null
|
|
if ! [ $? = 0 ]; then
|
|
error "Tomb is busy, cannot umount!"
|
|
fi
|
|
fi
|
|
|
|
cryptsetup luksClose $mapper
|
|
if ! [ $? = 0 ]; then
|
|
error "error occurred in cryptsetup luksClose ${mapper}"
|
|
return 1
|
|
fi
|
|
|
|
loopdev=`cut -d '.' -f4 <<< "$mapper"`
|
|
losetup -d "/dev/$loopdev"
|
|
|
|
# kill the status tray widget if still present
|
|
# this makes the widget disappear when closing tomb from cli
|
|
awkmapper=`sed 's:\/:\\\/:g' <<< $mapper`
|
|
statustray_pid=`ps ax | awk "/tomb-status $awkmapper/"' {print $1} '`
|
|
if [ ${statustray_pid} ]; then
|
|
kill ${statustray_pid}
|
|
fi
|
|
|
|
notice "Tomb $tombname closed: your bones will rest in peace."
|
|
return 0
|
|
}
|
|
|
|
# list all tombs mounted in a readable format
|
|
list_tombs() {
|
|
if [ $1 ]; then
|
|
# list a specific tomb
|
|
mounted_tombs=`mount -l |
|
|
awk -vtomb="[$1]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $1 ";" $3 ";" $5 ";" $6 ";" $7 }'`
|
|
else
|
|
# list all open tombs
|
|
mounted_tombs=`mount -l |
|
|
awk '/^\/dev\/mapper\/tomb/ { print $1 ";" $3 ";" $5 ";" $6 ";" $7 }'`
|
|
fi
|
|
# 1 = full mapper path
|
|
# 2 = mountpont
|
|
# 3 = filesystem
|
|
# 4 = mount options
|
|
# 5 = name
|
|
|
|
if ! [ $mounted_tombs ]; then
|
|
if [ $1 ]; then
|
|
error "There seems to be no open tomb engraved as [${1}]"
|
|
else
|
|
error "I can't see any open tomb, may they all rest in peace."
|
|
fi
|
|
exit 1
|
|
fi
|
|
|
|
|
|
for t in ${(f)mounted_tombs}; do
|
|
mapper=`basename ${t[(ws:;:)1]}`
|
|
|
|
tombname=${t[(ws:;:)5]}
|
|
tombmount=${t[(ws:;:)2]}
|
|
tombfs=${t[(ws:;:)3]}
|
|
tombfsopts=${t[(ws:;:)4]}
|
|
|
|
tombsince=`date --date=@${mapper[(ws:.:)3]} +%c`
|
|
# breaking up such strings is good for translation
|
|
print -n "$fg[green]$tombname"
|
|
print -n "$fg[white] open on "
|
|
print -n "$fg_bold[white]$tombmount"
|
|
print -n "$fg_no_bold[white] using "
|
|
print "$fg_bold[white]$tombfs $tombfsopts"
|
|
print -n "$fg_no_bold[green]$tombname"
|
|
print -n "$fg_no_bold[white] open since "
|
|
print "$fg_bold[white]$tombsince$fg_no_bold[white]"
|
|
|
|
# now check hooks
|
|
mtomb=`sed 's:\/:\\\/:g' <<< $tombmount`
|
|
mounted_hooks=`mount | awk "/^$mtomb/"' {print $1 ";" $3}'`
|
|
for h in ${(f)mounted_hooks}; do
|
|
print -n "$fg[green]$tombname"
|
|
print -n "$fg_no_bold[white] hooks "
|
|
print -n "$fg_bold[white]`basename ${h[(ws:;:)1]}`"
|
|
print -n "$fg_no_bold[white] on "
|
|
print "$fg_bold[white]${h[(ws:;:)2]}$fg_no_bold[white]"
|
|
done
|
|
done
|
|
}
|
|
|
|
# install mime-types, bells and whistles for the desktop
|
|
# see http://developers.sun.com/solaris/articles/integrating_gnome.html
|
|
# and freedesktop specs
|
|
install_tomb() {
|
|
|
|
# TODO: distro package deps (for binary)
|
|
# debian: zsh, cryptsetup, sudo
|
|
act "updating mimetypes..."
|
|
cat <<EOF > /tmp/dyne-tomb.xml
|
|
<?xml version="1.0"?>
|
|
<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
|
|
<mime-type type="application/x-tomb-volume">
|
|
<comment>Tomb encrypted volume</comment>
|
|
<glob pattern="*.tomb"/>
|
|
</mime-type>
|
|
<mime-type type="application/x-tomb-key">
|
|
<comment>Tomb crypto key</comment>
|
|
<glob pattern="*.tomb.key"/>
|
|
</mime-type>
|
|
</mime-info>
|
|
EOF
|
|
xdg-mime install /tmp/dyne-tomb.xml
|
|
xdg-icon-resource install --context mimetypes --size 32 monmort.xpm monmort
|
|
xdg-icon-resource install --size 32 monmort.xpm dyne-monmort
|
|
|
|
rm /tmp/dyne-tomb.xml
|
|
|
|
act "updating desktop..."
|
|
cat <<EOF > /usr/share/applications/tomb.desktop
|
|
[Desktop Entry]
|
|
Version=1.0
|
|
Type=Application
|
|
Name=Tomb crypto undertaker
|
|
GenericName=Crypto undertaker
|
|
Comment=Keep your bones safe
|
|
Exec="${TOMBOPENEXEC}" %U
|
|
TryExec=tomb-open
|
|
Icon=monmort.xpm
|
|
Terminal=true
|
|
Categories=Utility;Security;Archiving;Filesystem;
|
|
MimeType=application/x-tomb-volume;
|
|
X-AppInstall-Package=tomb
|
|
EOF
|
|
update-desktop-database
|
|
|
|
act "updating menus..."
|
|
cat <<EOF > /etc/menu/tomb
|
|
?package(tomb):command="tomb" icon="/usr/share/pixmaps/monmort.xpm" needs="text" \
|
|
section="Applications/Accessories" title="Tomb" hints="Crypto" \
|
|
hotkey="Tomb"
|
|
EOF
|
|
update-menus
|
|
|
|
act "updating mime info..."
|
|
cat <<EOF > /usr/share/mime-info/tomb.keys
|
|
# actions for encrypted tomb storage
|
|
application/x-tomb-volume:
|
|
open="${TOMBOPENEXEC}" %f
|
|
view=tomb-open %f
|
|
icon-filename=monmort.xpm
|
|
short_list_application_ids_for_novice_user_level=tomb
|
|
EOF
|
|
cat <<EOF > /usr/share/mime-info/tomb.mime
|
|
# mime type for encrypted tomb storage
|
|
application/x-tomb-volume
|
|
ext: tomb
|
|
|
|
application/x-tomb-key
|
|
ext: tomb.key
|
|
EOF
|
|
cat <<EOF > /usr/lib/mime/packages/tomb
|
|
application/x-tomb-volume; tomb-open '%s'; priority=8
|
|
EOF
|
|
update-mime
|
|
|
|
act "updating application entry..."
|
|
|
|
cat <<EOF > /usr/share/application-registry/tomb.applications
|
|
tomb
|
|
command=tomb-open
|
|
name=Tomb - Crypto Undertaker
|
|
can_open_multiple_files=false
|
|
expects_uris=false
|
|
requires_terminal=true
|
|
mime-types=application/x-tomb-volume,application/x-tomb-key
|
|
EOF
|
|
act "Tomb is now installed."
|
|
}
|
|
|
|
main () {
|
|
echo $@ | grep '\-D' 2>&1 > /dev/null
|
|
# ?????
|
|
if [ $? = 0 ]; then
|
|
fi
|
|
|
|
ARGS=$@[@]
|
|
|
|
OPTS=`getopt -o hvqDs:k:n -n 'tomb' -- "$@"`
|
|
while true; do
|
|
case "$1" in
|
|
-h)
|
|
usage
|
|
exit 0 ;;
|
|
-v)
|
|
notice "Tomb - simple commandline tool for encrypted storage"
|
|
act "version $VERSION ($DATE) by Jaromil @ dyne.org"
|
|
# print out the GPL license in this file
|
|
act ""
|
|
cat $0 | awk 'BEGIN { license=0 } /^# This source/ { license=1 } { if(license==1) print " " $0 }
|
|
/MA 02139, USA.$/ { license=0 }'
|
|
act ""
|
|
exit 0 ;;
|
|
-q) QUIET=1; shift 1 ;;
|
|
-D)
|
|
print "[D] Tomb invoked with args \"${(f)@}\" "
|
|
print "[D] running on `date`"
|
|
DEBUG=1; shift 1 ;;
|
|
-s) SIZE=$2; shift 2 ;;
|
|
-k) KEY=$2; shift 2 ;;
|
|
-n) NOBIND=1; shift 1 ;;
|
|
--) shift; break ;;
|
|
*) CMD=$1;
|
|
FILE=$2; MOUNT=$3; # compat with old args
|
|
CMD2=${2}; CMD3=${3}; break ;;
|
|
esac
|
|
done
|
|
|
|
if ! [ $CMD ]; then
|
|
error "first argument missing, use -h for help"
|
|
exit 0
|
|
fi
|
|
|
|
func "Tomb command: $CMD $CMD2 $CMD3"
|
|
|
|
case "$CMD" in
|
|
create) check_priv ; create_tomb ;;
|
|
mount) check_priv ; mount_tomb ;;
|
|
open) check_priv ; mount_tomb ;;
|
|
umount) check_priv ; umount_tomb ${CMD2} ;;
|
|
close) check_priv ; umount_tomb ${CMD2} ;;
|
|
slam) check_priv ; SLAM=1; umount_tomb ${CMD2} ;;
|
|
list) list_tombs ${CMD2} ;;
|
|
help) usage ;;
|
|
bury) if [ "$STEGHIDE" = 0 ]; then
|
|
error "steghide not installed. Cannot bury your key"
|
|
return 1
|
|
fi
|
|
encode_key ${CMD2} ${CMD3} ;;
|
|
exhume) if [ "$STEGHIDE" = 0 ]; then
|
|
error "steghide not installed. Cannot exhume your key"
|
|
return 1
|
|
fi
|
|
decode_key ${CMD2} ;;
|
|
install) check_priv ; install_tomb ;;
|
|
askpass) ask_password $CMD2 ;;
|
|
status) tomb-status ;;
|
|
mktemp) safe_dir ${CMD2} ;;
|
|
translate) generate_translatable_strings ;;
|
|
*) error "command \"$CMD\" not recognized"
|
|
act "try -h for help"
|
|
return 1
|
|
;;
|
|
esac
|
|
return 0
|
|
}
|
|
|
|
check_bin
|
|
main $@
|