mirror of
https://github.com/Llewellynvdm/Tomb.git
synced 2024-11-10 23:20:57 +00:00
huge cleanup
tomb shell command doesn't depends from X, all GUI notifications are moved into tomb-open including USB key handling, gksu has been dropped completely as a method to gain privileges, there is a new -n flag to avoid processing hooks, variable names have been sanitized, duplicate code eliminated, documentation has been updated and the code cleaned up we are very close to the 1.0 now
This commit is contained in:
Jaromil
parent
fd8df548f4
commit
b521e32110
@ -92,6 +92,10 @@ file adding a '.gpg' suffix, but can be later renamed and transported
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on other media. When a key is not found, the program asks to insert a
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USB storage device and it will look for the key file inside it.
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.B
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.IP "-n"
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Skip processing of post-hooks and bind-hooks if found inside the tomb.
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See the \fIHOOKS\fR section in this manual for more information.
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.B
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.IP "-h"
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Display a help text and quit
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.B
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531
src/tomb
531
src/tomb
@ -20,7 +20,7 @@
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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=0.9.2
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VERSION=0.9.3
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DATE=Feb/2011
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# PATH=/usr/bin:/usr/sbin:/bin:/sbin
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@ -48,114 +48,6 @@ else
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WIPE=(rm -f)
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fi
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# usb auto detect using dmesg
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# tested on ubuntu 10.04 - please test and patch on other systems if you can
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# TODO: use udev rules, see how archlinux folks document it - arch rox 8)
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# https://wiki.archlinux.org/index.php/System_Encryption_with_LUKS_for_dm-crypt
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# here we could modularize the choice of methods using function pointers,
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# so that they are configurable when calling tomb.
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ask_usbkey() {
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notice "Waiting 1 minute for a usb key to connect"
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echo -n " . please insert your usb key "
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exec_as_user notify-send -i monmort \
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-u normal -h string:App:Tomb \
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-h double:Version:${VERSION} \
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-t 60 \
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"Insert your USB KEY" \
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"Tomb is waiting 1 minute for you to insert an external key."
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plugged=false
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c=0
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while [ "$plugged" != "true" ]; do
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dmesg | tail -n 12 | grep -q 'new.*USB device'
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if [ $? = 0 ]; then plugged=true; fi
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echo -n "."
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sleep .5
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c=`expr $c + 1`
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if [ $c -gt 15 ]; then
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echo
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error "timeout."
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export usbkey_mount=none
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return 1;
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fi
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done
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echo
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echo -n " . usb key inserted, attaching "
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c=0
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attached=false
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while [ "$attached" != "true" ]; do
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dmesg | tail -n 12| grep -q 'Attached.*removable disk'
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if [ $? = 0 ]; then attached=true; fi
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echo -n "."
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sleep 1
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c=`expr $c + 1`
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if [ $c -gt 15 ]; then
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echo
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error "timeout."
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export usbkey_mount=none
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return 1;
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fi
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done
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echo
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echo -n " . usb attached, opening "
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# get the first partition
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# usbpart=`dmesg |tail -n 12 | grep ' sd.:' |cut -d: -f2 |tr -d ' '`
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for i in $(seq 1 10); do
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usbpart=$(dmesg | tail -n 12 | sed '/ sd.:/!d;s/^.*: \(sd.[0-9]*\)/\1/')
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if [ -n "$usbpart" ]; then
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break
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elif [ $i -eq 10 ]; then
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error "timeout."
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return 1
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else
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echo -n .
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sleep 1
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fi
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done
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# # wait that is mounted (it automount is on)
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# c=0
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# mounted=false
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# while [ "$mounted" != "true" ]; do
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# cat /proc/mounts | tail -n 2 | grep -q $usbpart
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# if [ $? = 0 ]; then mounted=true; fi
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# echo -n "."
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# sleep .5
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# c=`expr $c + 1`
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# if [ $c -gt 30 ]; then
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# echo
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# error "timeout."
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# export usbkey_mount=none
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# return 1;
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# fi
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# done
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# # check where it is mounted
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# usbmount=`cat /proc/mounts | awk -v p=$usbpart '{ if( $1 == "/dev/" p) print $2 }'`
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# sleep 1
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# mount the first partition on the usb key
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# mtmp=`tempfile -p tomb`
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# rm -f $mtmp
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# mkdir -p $mtmp
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mtmp=$(/bin/mktemp -d --tmpdir tomb.XXXXXXXXXXXX)
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mount /dev/$usbpart $mtmp
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if [ $? = 0 ]; then
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usbmount=$mtmp
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else
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error "cannot mount usbkey partition $usbmount"
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return 1
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fi
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echo
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act "usb key mounted on $usbmount"
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export usbkey_mount=$usbmount
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return 0
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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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@ -166,7 +58,10 @@ ask_password() {
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# so we need to temporary modify the gtk theme
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if [ -r ~/.gtkrc-2.0 ]; then
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cp ~/.gtkrc-2.0 ~/.gtkrc-2.0.tomb.bak
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else
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touch ~/.gtkrc-2.0
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fi
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cat <<EOF >> ~/.gtkrc-2.0
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pixmap_path "/usr/local/share/pixmaps"
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style "normal" { stock["gtk-dialog-authentication"] = {{"monmort.xpm"}} }
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@ -174,8 +69,8 @@ ask_password() {
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EOF
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cat <<EOF | pinentry | awk '/^D/ { print $2 }'
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SETTITLE Opening Tomb $1
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SETDESC You need a password to use its key
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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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@ -184,33 +79,12 @@ EOF
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if [ -r ~/.gtkrc-2.0.tomb.bak ]; then
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cp ~/.gtkrc-2.0.tomb.bak ~/.gtkrc-2.0
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rm ~/.gtkrc-2.0.tomb.bak
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fi
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}
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# popup notification
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tomb-notify() {
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# look for our icon in common prefixes
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if [ -r /usr/share/pixmaps/monmort.xpm ]; then icon=/usr/share/pixmaps/monmort.xpm
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elif [ -r /usr/share/icons/monmort.xpm ]; then icon=/usr/share/icons/monmort.xpm
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elif [ -r /usr/local/share/pixmaps/monmort.xpm ]; then icon=/usr/local/share/pixmaps/monmort.xpm
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elif [ -r /usr/local/share/icons/monmort.xpm ]; then icon=/usr/local/share/icons/monmort.xpm
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elif [ -r /opt/share/pixmaps/monmort.xpm ]; then icon=/opt/share/pixmaps/monmort.xpm
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elif [ -r /sw/share/pixmaps/monmort.xpm ]; then icon=/sw/share/pixmaps/monmort.xpm
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fi
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if [ -z $1 ]; then
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exec_as_user notify-send -i $icon \
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-u low -h string:App:Tomb \
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-h double:Version:${VERSION} \
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"Tomb version $VERSION" \
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"Hi, I'm the Undertaker.
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Let's start setting your Crypt?"
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else
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exec_as_user notify-send -i $icon ${@}
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rm -f ~/.gtkrc-2.0
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fi
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}
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# drop privileges
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exec_as_user() {
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@ -235,14 +109,12 @@ exec_as_user() {
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check_priv() {
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id | grep root > /dev/null
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if [ $? != 0 ]; then
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which gksu > /dev/null
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if [ $? = 0 ]; then
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func "Using gksu for root execution of 'tomb ${(f)ARGS}'"
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gksudo "tomb ${ARGS[@]}"
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exit $?
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fi
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which sudo > /dev/null
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if [ $? = 0 ]; then
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if [ $? != 0 ]; then
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error "Tomb requires sudo. please install it."
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exit 1
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fi
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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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@ -257,55 +129,107 @@ EOF
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fi
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sudo "tomb" ${(s: :)ARGS}
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exit $?
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fi # have sudo
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return 1
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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}.key ]; then
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tombkey=${tombdir}/${tombname}.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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############################
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### main()
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###
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echo $@ | grep '\-q' 2>&1 > /dev/null
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if [ $? != 0 ]; then
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notice "Tomb - simple commandline tool for encrypted storage"
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act "version $VERSION ($DATE) by Jaromil @ dyne.org"
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fi
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echo $@ | grep '\-D' 2>&1 > /dev/null
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if [ $? = 0 ]; then
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echo "[D] invoked with args \"${(f)@}\" "
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echo "[D] running on `date`"
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fi
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ARGS=$@[@]
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OPTS=`getopt -o hvqDs:k: -n 'tomb' -- "$@"`
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OPTS=`getopt -o hvqDs:k:n -n 'tomb' -- "$@"`
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while true; do
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case "$1" in
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-h)
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act ""
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notice "Syntax: tomb [options] command [file] [mountpoint]"
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act ""
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notice "Commands:"
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act "create create a new encrypted storage FILE and keys"
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act "open open an existing tomb FILE on MOUNTPOINT"
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act "close closes the tomb on MOUNTPOINT"
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act "bury hide a tomb key inside a jpeg image"
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act "exhume extract an hidden tomb key from a jpeg image"
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cat <<EOF
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Tomb $VERSION - a strong and gentle undertaker for your secrets
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act ""
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notice "Options:"
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act "-s size of the storage file when creating one (MB)"
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act "-k path to the key to use for decryption"
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act ""
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act "-h print this help"
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act "-v version information for this tool"
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act "-q run quietly without printing informations"
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act "-D print debugging information at runtime"
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echo; exit 2 ;;
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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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close closes the tomb open on PLACE
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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 PLACE
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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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exit 0 ;;
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-v)
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notice "Tomb - simple commandline tool for encrypted storage"
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act "version $VERSION ($DATE) by Jaromil @ dyne.org"
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# print out the GPL license in this file
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act ""
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cat $0 | awk '
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@ -317,9 +241,13 @@ BEGIN { license=0 }
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act ""
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exit 0 ;;
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-q) QUIET=1; shift 1 ;;
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-D) DEBUG=1; shift 1 ;;
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-D)
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echo "[D] Tomb invoked with args \"${(f)@}\" "
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echo "[D] running on `date`"
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DEBUG=1; shift 1 ;;
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-s) SIZE=$2; shift 2 ;;
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-k) KEY=$2; shift 2 ;;
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-b) NOBIND=1; shift 1 ;;
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--) shift; break ;;
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*) CMD=$1;
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FILE=$2; MOUNT=$3; # compat with old args
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@ -331,44 +259,52 @@ done
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if ! [ $CMD ]; then
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error "first argument missing, use -h for help"
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tomb-notify
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exit 0
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fi
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func "Tomb called: $CMD $CMD2 $CMD3"
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func "Tomb command: $CMD $CMD2 $CMD3"
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create_tomb() {
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# make sure the file has a .tomb extension
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FILE="${FILE%\.*}.tomb"
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if [ -e "$FILE" ]; then
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error "$FILE exists already. I'm not digging here."
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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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notice "Creating a new tomb"
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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 [ $MOUNT ]; then
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SIZE=$MOUNT
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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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tomb-open &!
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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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SIZE_4k=`expr $SIZE \* 1000 / 4`
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act "Generating ${FILE} of ${SIZE}Mb (${SIZE_4k} blocks of 4Kb)"
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$DD if=/dev/urandom bs=4k count=${SIZE_4k} of=${FILE}
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tombsize_4k=`expr $tombsize \* 1000 / 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 ${FILE} ]; then
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act "OK: `ls -lh ${FILE}`"
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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 ${FILE}, operation aborted."
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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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@ -376,7 +312,7 @@ create_tomb() {
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modprobe aes-i586
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nstloop=`losetup -f` # get the number for next loopback device
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losetup -f ${FILE} # allocates the next loopback for our file
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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=`tempfile -p tomb`
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@ -404,15 +340,14 @@ create_tomb() {
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exit 1
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fi
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notice "Setup your secret key file ${FILE}.gpg"
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tomb-notify "The Tomb key is being forged:" "please set your password."
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notice "Setup your secret key file ${tombname}.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 tomb -q askpass ${FILE}`
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tombpass=`exec_as_user tomb askpass ${tombname}`
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tombpasstmp=$tombpass
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tombpass=`exec_as_user tomb -q askpass "${FILE} (again)"`
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tombpass=`exec_as_user tomb askpass "${tombname} (again)"`
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if [ "$tombpasstmp" = "$tombpass" ]; then
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break;
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fi
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@ -428,8 +363,9 @@ create_tomb() {
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exit 1
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fi
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echo "${tombpass}" | gpg --batch --no-options --no-tty --passphrase-fd 0 \
|
||||
-o "${FILE}.gpg" -c -a ${keytmp}/tomb.tmp
|
||||
echo "${tombpass}" | gpg \
|
||||
--openpgp --batch --no-options --no-tty --passphrase-fd 0 \
|
||||
-o "${tombdir}/${tombname}.key" -c -a ${keytmp}/tomb.tmp
|
||||
|
||||
if [ $? = 2 ]; then
|
||||
error "setting password failed: gnupg returns 2"
|
||||
@ -460,12 +396,11 @@ create_tomb() {
|
||||
|
||||
act "formatting your Tomb with Ext4 filesystem"
|
||||
|
||||
mkfs.ext4 -q -F -j -L "${FILE%%.*}" /dev/mapper/tomb.tmp
|
||||
mkfs.ext4 -q -F -j -L ${tombname} /dev/mapper/tomb.tmp
|
||||
|
||||
if [ $? = 0 ]; then
|
||||
act "OK, encrypted storage succesfully formatted"
|
||||
else
|
||||
act "error formatting Tomb"
|
||||
if [ $? != 0 ]; then
|
||||
error "Tomb format returns error"
|
||||
error "your tomb ${tombfile} maybe corrupt"
|
||||
fi
|
||||
|
||||
sync
|
||||
@ -473,101 +408,19 @@ create_tomb() {
|
||||
cryptsetup luksClose tomb.tmp
|
||||
losetup -d ${nstloop}
|
||||
|
||||
notice "done creating $FILE encrypted storage (using Luks dm-crypt AES/SHA256)"
|
||||
tomb-notify "The Tomb is ready!" "We will now open your new Tomb for the first time."
|
||||
|
||||
notice "Your tomb is ready on ${FILE} and secured with key ${FILE}.gpg"
|
||||
act "Would you like to save the key on an external usb device?"
|
||||
act "This is recommended for safety:"
|
||||
act "Always keep the key in a different place than the door!"
|
||||
act "If you answer yes, you'll need a USB KEY now: (y/n)"
|
||||
tomb-notify "Tomb has forged a key." "Would you like to save it on USB?"
|
||||
echo -n " > "
|
||||
read -q
|
||||
if [ $? = 0 ]; then
|
||||
ask_usbkey
|
||||
if ! [ -e ${usbkey_mount} ]; then
|
||||
error "cannot save the key in a separate place, move it yourself later."
|
||||
else
|
||||
mkdir -m 0700 -p ${usbkey_mount}/.tomb
|
||||
cp -v ${FILE}.gpg ${usbkey_mount}/.tomb/
|
||||
chmod -R go-rwx ${usbkey_mount}/.tomb
|
||||
umount ${usbkey_mount}
|
||||
unset usbkey_mount
|
||||
notice "Key ${FILE}.gpg succesfully saved on your USB"
|
||||
act "now we proceed opening your new tomb"
|
||||
KEY=${FILE}.gpg
|
||||
CMD2=${FILE}
|
||||
CMD3=/media/${FILE}
|
||||
mount_tomb ${FILE}
|
||||
${WIPE[@]} ${FILE}.gpg
|
||||
fi
|
||||
else # kept besides (deprecated behaviour)
|
||||
act "now we proceed opening your new tomb"
|
||||
KEY=${FILE}.gpg
|
||||
unset CMD2
|
||||
unset CMD3
|
||||
mount_tomb ${FILE}
|
||||
fi
|
||||
act "done creating $tombname encrypted storage (using Luks dm-crypt AES/SHA256)"
|
||||
notice "Your tomb is ready in ${tombdir}/${tombfile} and secured with key ${tombname}.key"
|
||||
|
||||
}
|
||||
|
||||
|
||||
mount_tomb() {
|
||||
if ! [ $CMD2 ]; then
|
||||
error "need an argument, operation aborted."
|
||||
return 1
|
||||
elif [ -r $CMD2 ]; then
|
||||
tombfile=`basename $CMD2`
|
||||
else
|
||||
# try also adding a .tomb extension
|
||||
tombfile=${tombfile%%\.*}.tomb
|
||||
if ! [ -r $tombfile ]; then
|
||||
error "cannot find a tomb named $CMD2"
|
||||
return 1
|
||||
fi
|
||||
fi
|
||||
|
||||
tombdir=`dirname $CMD2`
|
||||
|
||||
file ${tombdir}/${tombfile} | grep -i 'luks encrypted.*cbc-essiv' 2>&1 >/dev/null
|
||||
get_arg_tomb $CMD2
|
||||
if [ $? != 0 ]; then
|
||||
error "$CMD2 is not a valid tomb file, operation aborted"
|
||||
tomb-notify "Not a tomb." "$CMD2 doesn't seems a real tomb."
|
||||
error "operation aborted."
|
||||
return 1
|
||||
fi
|
||||
|
||||
tombname=${tombfile%%\.*}
|
||||
act "mounting tomb named $tombname"
|
||||
|
||||
if [ $KEY ]; then
|
||||
tombkey="`basename $KEY`"
|
||||
tombkeypath="$KEY"
|
||||
act "tomb key specified manually, using: $tombkeypath"
|
||||
else
|
||||
tombkey=${tombfile}.gpg
|
||||
if [ -r $tombkey ]; then
|
||||
tombkeypath=$tombkey
|
||||
elif [ -r "$tombdir/$tombkey" ]; then
|
||||
tombkeypath="$tombdir/$tombkey"
|
||||
else
|
||||
error "encryption key ${enc_key} not found on disk"
|
||||
error "use -k option to specify which key to use"
|
||||
error "provide a usb key now, or press ctrl-c to abort"
|
||||
notice "please insert your USB KEY"
|
||||
ask_usbkey
|
||||
# returns usbkey_mount, now check if the key is there
|
||||
if [ -r ${usbkey_mount}/.tomb/${tombkey} ]; then
|
||||
tombkeypath=${usbkey_mount}/.tomb/${tombkey}
|
||||
notice "key found on ${tombkeypath}"
|
||||
else
|
||||
error "key is missing, try to locate $tombkey in your files."
|
||||
error "operation aborted"
|
||||
return 1
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
if ! [ $CMD3 ]; then
|
||||
tombmount=/media/${tombfile}
|
||||
act "mountpoint not specified, using default: $tombmount"
|
||||
@ -611,18 +464,18 @@ mount_tomb() {
|
||||
|
||||
mapper="tomb.${tombname}.${mapdate}.`basename $nstloop`"
|
||||
|
||||
notice "Password is required for key ${tombkey}"
|
||||
keyname=`basename $tombkey | cut -d. -f1`
|
||||
notice "Password is required for key ${keyname}"
|
||||
for c in 1 2 3; do
|
||||
|
||||
if [ $c = 1 ]; then
|
||||
tombpass=`exec_as_user tomb -q askpass ${keyname}`
|
||||
tombpass=`exec_as_user tomb askpass ${keyname}`
|
||||
else
|
||||
tombpass=`exec_as_user tomb -q askpass "$keyname (retry $c)"`
|
||||
tombpass=`exec_as_user tomb askpass "$keyname (retry $c)"`
|
||||
fi
|
||||
echo "${tombpass}" \
|
||||
| gpg --batch --passphrase-fd 0 --no-tty --no-options \
|
||||
-d "${tombkeypath}" \
|
||||
-d "${tombkey}" \
|
||||
| cryptsetup --key-file - luksOpen ${nstloop} ${mapper}
|
||||
|
||||
unset tombpass
|
||||
@ -633,12 +486,6 @@ mount_tomb() {
|
||||
|
||||
done
|
||||
|
||||
if [ -r ${usbkey_mount}/.tomb/${tombkey} ]; then
|
||||
umount ${usbkey_mount}
|
||||
rmdir ${usbkey_mount}
|
||||
unset usbkey_mount
|
||||
fi
|
||||
|
||||
if ! [ -r /dev/mapper/${mapper} ]; then
|
||||
error "failure mounting the encrypted file"
|
||||
losetup -d ${nstloop}
|
||||
@ -660,8 +507,10 @@ mount_tomb() {
|
||||
|
||||
notice "encrypted storage $tombfile succesfully mounted on $tombmount"
|
||||
# exec_bind_hooks ${tombmount}
|
||||
if ! [ $NOBIND ]; then
|
||||
exec_safe_bind_hooks ${tombmount}
|
||||
exec_post_hooks ${tombmount} open
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
@ -686,9 +535,9 @@ encode_key() {
|
||||
# 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 tomb -q askpass ${FILE}`
|
||||
tombpass=`exec_as_user tomb askpass ${tombkey}`
|
||||
tombpasstmp=$tombpass
|
||||
tombpass=`exec_as_user tomb -q askpass "${FILE} (again)"`
|
||||
tombpass=`exec_as_user tomb askpass "${tombkey} (again)"`
|
||||
if [ "$tombpasstmp" = "$tombpass" ]; then
|
||||
break;
|
||||
fi
|
||||
@ -704,7 +553,6 @@ encode_key() {
|
||||
awk '
|
||||
/^-----/ {next}
|
||||
/^Version/ {next}
|
||||
/^Comment/ {next}
|
||||
{print $0}' ${tombkey} \
|
||||
| steghide embed --embedfile - --coverfile ${imagefile} \
|
||||
-p ${tombpass} -z 9 -e serpent cbc
|
||||
@ -732,27 +580,26 @@ decode_key() {
|
||||
return 1
|
||||
fi
|
||||
|
||||
tombfile=${tombname%%\.*}.tomb.gpg
|
||||
notice "Decoding a key out of image $imagefile"
|
||||
keyfile=${tombname%%\.*}.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 tomb -q askpass ${keyname}`
|
||||
tombpass=`exec_as_user tomb askpass ${keyfile}`
|
||||
else
|
||||
tombpass=`exec_as_user tomb -q askpass "$keyname (retry $c)"`
|
||||
tombpass=`exec_as_user tomb askpass "$keyfile (retry $c)"`
|
||||
fi
|
||||
steghide extract -sf ${imagefile} -p ${tombpass} -xf - \
|
||||
| awk '
|
||||
BEGIN {
|
||||
print "-----BEGIN PGP MESSAGE-----"
|
||||
print "Version: GnuPG v1.4.10 (GNU/Linux)"
|
||||
}
|
||||
{ print $0 }
|
||||
END {
|
||||
print "-----END PGP MESSAGE-----"
|
||||
}' > ${tombfile}
|
||||
}' > ${keyfile}
|
||||
|
||||
if [ "`cat ${tombfile} | wc -l`" != "3" ]; then
|
||||
act "${tombfile} succesfully decoded"
|
||||
if [ "`cat ${keyfile} | wc -l`" != "3" ]; then
|
||||
act "${keyfile} succesfully decoded"
|
||||
res=0
|
||||
break;
|
||||
fi
|
||||
@ -780,7 +627,8 @@ exec_bind_hooks() {
|
||||
{ if($1 && $2) print "mount -o bind \${mnt}/" $1 " " $2 "; " }
|
||||
'`
|
||||
# restore $HOME for the calling user
|
||||
HOME=/home/${SUDO_USER}
|
||||
ME=${SUDO_USER:-$(whoami)}
|
||||
HOME=$(grep $ME /etc/passwd | sed "s/^${ME}:.*:.*:.*:.*:\([\/a-z]*\):.*$/\1/" 2>/dev/null)
|
||||
|
||||
act "bind hooks found, mounting directories as requested"
|
||||
# execute the mount commands
|
||||
@ -800,9 +648,9 @@ exec_safe_bind_hooks() {
|
||||
error "cannot exec bind hooks without a mounted tomb."
|
||||
return 1
|
||||
fi
|
||||
if [ ! -r "$MOUNTPOINT/bind-hooks" ]; then
|
||||
func "cannot read bind-hooks."
|
||||
return
|
||||
if ! [ -r "$MOUNTPOINT/bind-hooks" ]; then
|
||||
func "bind-hooks not found in $MOUNTPOINT"
|
||||
return 1
|
||||
fi
|
||||
typeset -al created
|
||||
typeset -al mounted
|
||||
@ -820,7 +668,7 @@ exec_safe_bind_hooks() {
|
||||
return 1
|
||||
fi
|
||||
if [ ! -d "$HOME/${maps[$dir]}" ]; then
|
||||
notice "creating $HOME/${maps[$dir]}"
|
||||
act "creating $HOME/${maps[$dir]}"
|
||||
mkdir -p $HOME/${maps[$dir]}
|
||||
created+=("$HOME/${maps[$dir]}")
|
||||
fi
|
||||
@ -844,38 +692,6 @@ exec_post_hooks() {
|
||||
fi
|
||||
}
|
||||
|
||||
get_arg_tomb() {
|
||||
# set up variables to be used by caller:
|
||||
# tombfile - filename without path
|
||||
# tombdir - directory where the tomb is
|
||||
# tombname - name of the tomb (filename without extension)
|
||||
# the full path is made with $tombdir/$tombfile
|
||||
if [ -z $1 ]; then
|
||||
error "internal: get_arg_tomb called without argument"
|
||||
return 1
|
||||
fi
|
||||
|
||||
# make sure there is a .tomb extension
|
||||
arg=${1%%\.*}.tomb
|
||||
|
||||
if ! [ -r ${arg} ]; then
|
||||
error "file not found: $arg"
|
||||
return 1
|
||||
fi
|
||||
|
||||
tombfile=`basename $arg`
|
||||
tombdir=`dirname $arg`
|
||||
|
||||
file ${tombdir}/${tombfile} | grep -i 'luks encrypted file' 2>&1 >/dev/null
|
||||
if [ $? != 0 ]; then
|
||||
error "$arg is not a valid tomb file, operation aborted"
|
||||
tomb-notify "Not a tomb." "$arg doesn't seems a real tomb."
|
||||
return 1
|
||||
fi
|
||||
|
||||
tombname=${tombfile%%\.*}
|
||||
return 0
|
||||
}
|
||||
|
||||
backup_tomb() { # FIXME - duplicity asks passwords too often
|
||||
# using duplicity
|
||||
@ -984,8 +800,8 @@ umount_tomb() {
|
||||
if [ "$1" = "all" ]; then
|
||||
tombs=`find /dev/mapper -name 'tomb.*'`
|
||||
if ! [ $tombs ]; then
|
||||
error "Tombs are all closed, cemetery is quiet."
|
||||
return 1
|
||||
notice "Tombs are all closed, cemetery is quiet."
|
||||
return 0
|
||||
fi
|
||||
for t in ${(f)tombs}; do
|
||||
umount_tomb ${t}
|
||||
@ -1000,7 +816,6 @@ umount_tomb() {
|
||||
else
|
||||
error "tomb not found: $1"
|
||||
error "please specify an existing /dev/mapper/tomb.*"
|
||||
tomb-notify "Tomb was already closed." "Undertaker will rest in peace."
|
||||
return 0
|
||||
fi
|
||||
|
||||
@ -1021,15 +836,17 @@ umount_tomb() {
|
||||
fi
|
||||
|
||||
# Execute post-hooks for eventual cleanup
|
||||
if ! [ $NOBIND ]; then
|
||||
exec_post_hooks ${tombmount} close
|
||||
fi
|
||||
|
||||
act "closing tomb $tombname on dm-crypt $basemap"
|
||||
mount | grep $mapper 2>&1 >/dev/null
|
||||
if [ $? = 0 ]; then # still mounted
|
||||
umount ${mapper}
|
||||
if ! [ $? = 0 ]; then
|
||||
tomb-notify "Tomb '$tombname' is too busy." \
|
||||
"Close all applications and file managers, then try again."
|
||||
# TODO: ask user if wanting to SLAM the tomb closed
|
||||
# then kill all processes found using it with fuser and lsof
|
||||
return 1
|
||||
fi
|
||||
fi
|
||||
@ -1042,8 +859,7 @@ umount_tomb() {
|
||||
|
||||
losetup -d "/dev/`echo $basemap | cut -d. -f4`"
|
||||
|
||||
notice "crypt storage ${mapper} unmounted"
|
||||
tomb-notify "Tomb closed: $tombname" "Your bones will Rest In Peace."
|
||||
notice "Tomb $tombname closed: your bones will rest in peace."
|
||||
return 0
|
||||
}
|
||||
|
||||
@ -1053,7 +869,7 @@ umount_tomb() {
|
||||
install_tomb() {
|
||||
|
||||
# TODO: distro package deps (for binary)
|
||||
# debian: zsh, cryptsetup, libgtk2.0-0, libnotify-bin
|
||||
# debian: zsh, cryptsetup, sudo
|
||||
act "updating mimetypes..."
|
||||
cat <<EOF > /tmp/dyne-tomb.xml
|
||||
<?xml version="1.0"?>
|
||||
@ -1064,7 +880,7 @@ install_tomb() {
|
||||
</mime-type>
|
||||
<mime-type type="application/x-tomb-key">
|
||||
<comment>Tomb crypto key</comment>
|
||||
<glob pattern="*.tomb.gpg"/>
|
||||
<glob pattern="*.key"/>
|
||||
</mime-type>
|
||||
</mime-info>
|
||||
EOF
|
||||
@ -1115,7 +931,7 @@ application/x-tomb-volume
|
||||
ext: tomb
|
||||
|
||||
application/x-tomb-key
|
||||
ext: tomb.gpg
|
||||
ext: key
|
||||
EOF
|
||||
cat <<EOF > /usr/lib/mime/packages/tomb
|
||||
application/x-tomb-volume; tomb-open '%s'; priority=8
|
||||
@ -1155,9 +971,8 @@ case "$CMD" in
|
||||
|
||||
install) check_priv ; install_tomb ;;
|
||||
|
||||
askpass) ask_password $CMD2 $CMD3 ;;
|
||||
askpass) ask_password $CMD2 ;;
|
||||
status) tomb-status ;;
|
||||
notify) tomb-notify $CMD2 $CMD3 ;;
|
||||
|
||||
*) error "command \"$CMD\" not recognized"
|
||||
act "try -h for help"
|
||||
|
||||
256
src/tomb-open
256
src/tomb-open
@ -31,35 +31,188 @@ try() {
|
||||
else return -1; fi
|
||||
}
|
||||
|
||||
tombdir=`dirname $1`
|
||||
tombfile=`basename $1`
|
||||
tombname=${tombfile%%\.*}
|
||||
# popup notification
|
||||
tomb-notify() {
|
||||
|
||||
which notify-send > /dev/null
|
||||
if [ $? != 0 ]; then return 1; fi
|
||||
|
||||
# look for our icon in common prefixes
|
||||
if [ -r /usr/share/pixmaps/monmort.xpm ]; then icon=/usr/share/pixmaps/monmort.xpm
|
||||
elif [ -r /usr/share/icons/monmort.xpm ]; then icon=/usr/share/icons/monmort.xpm
|
||||
elif [ -r /usr/local/share/pixmaps/monmort.xpm ]; then icon=/usr/local/share/pixmaps/monmort.xpm
|
||||
elif [ -r /usr/local/share/icons/monmort.xpm ]; then icon=/usr/local/share/icons/monmort.xpm
|
||||
elif [ -r /opt/share/pixmaps/monmort.xpm ]; then icon=/opt/share/pixmaps/monmort.xpm
|
||||
elif [ -r /sw/share/pixmaps/monmort.xpm ]; then icon=/sw/share/pixmaps/monmort.xpm
|
||||
fi
|
||||
|
||||
if [ -z $1 ]; then
|
||||
notify-send -i $icon \
|
||||
-u low -h string:App:Tomb \
|
||||
-h double:Version:${VERSION} \
|
||||
"Tomb version $VERSION" \
|
||||
"Hi, I'm the Undertaker.
|
||||
Let's start setting your Crypt?"
|
||||
else
|
||||
notify-send -i $icon ${@}
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
# USB plug auto detect using dmesg
|
||||
# tested on ubuntu 10.04 and debian 6.0
|
||||
# please test and patch on other systems if you can.
|
||||
# TODO: use udev rules, see how archlinux folks document it:
|
||||
# https://wiki.archlinux.org/index.php/System_Encryption_with_LUKS_for_dm-crypt
|
||||
# here we could modularize the choice of methods using function pointers,
|
||||
# so that they are configurable when calling tomb.
|
||||
ask_usbkey() {
|
||||
unset usbkey_mount
|
||||
echo "Waiting 1 minute for a usb key to connect"
|
||||
echo -n " . please insert your usb key "
|
||||
|
||||
tomb-notify "Insert your USB KEY" \
|
||||
"Tomb is waiting 30 seconds for you to insert an external key."
|
||||
|
||||
plugged=false
|
||||
c=0
|
||||
while [ "$plugged" != "true" ]; do
|
||||
dmesg | tail -n 12 | grep -q 'new.*USB device'
|
||||
if [ $? = 0 ]; then plugged=true; fi
|
||||
echo -n "."
|
||||
sleep .5
|
||||
c=`expr $c + 1`
|
||||
if [ $c -gt 60 ]; then
|
||||
echo
|
||||
echo "[!] timeout."
|
||||
return 1;
|
||||
fi
|
||||
done
|
||||
|
||||
echo
|
||||
echo -n " . usb key inserted, attaching "
|
||||
|
||||
c=0
|
||||
attached=false
|
||||
while [ "$attached" != "true" ]; do
|
||||
dmesg | tail -n 12| grep -q 'Attached.*removable disk'
|
||||
if [ $? = 0 ]; then attached=true; fi
|
||||
echo -n "."
|
||||
sleep .5
|
||||
c=`expr $c + 1`
|
||||
if [ $c -gt 30 ]; then
|
||||
echo
|
||||
echo "[!] timeout."
|
||||
export usbkey_mount=none
|
||||
return 1;
|
||||
fi
|
||||
done
|
||||
|
||||
echo
|
||||
echo -n " . usb attached, opening "
|
||||
|
||||
# get the first partition
|
||||
# usbpart=`dmesg |tail -n 12 | grep ' sd.:' |cut -d: -f2 |tr -d ' '`
|
||||
for i in $(seq 1 10); do
|
||||
usbpart=$(dmesg | tail -n 12 | sed '/ sd.:/!d;s/^.*: \(sd.[0-9]*\)/\1/')
|
||||
if [ -n "$usbpart" ]; then
|
||||
break
|
||||
elif [ $i -eq 10 ]; then
|
||||
echo "[!] timeout."
|
||||
return 1
|
||||
else
|
||||
echo -n .
|
||||
sleep 1
|
||||
fi
|
||||
done
|
||||
|
||||
mtmp=$(/bin/mktemp -d --tmpdir tomb.XXXXXXXXXXXX)
|
||||
sudo mount /dev/$usbpart $mtmp
|
||||
if [ $? = 0 ]; then
|
||||
usbmount=$mtmp
|
||||
else
|
||||
echo "[!] cannot mount usbkey partition $usbmount"
|
||||
return 1
|
||||
fi
|
||||
|
||||
echo
|
||||
echo " . usb key mounted on $usbmount"
|
||||
usbkey_mount=$usbmount
|
||||
return 0
|
||||
}
|
||||
|
||||
launch_status() {
|
||||
# calculates the correct arguments to launch tomb-status tray
|
||||
# applet; it takes the tomb name as an argument and should be
|
||||
# launched after a successful tomb mount.
|
||||
if ! [ $1 ]; then
|
||||
echo "[!] cannot launch status tray applet: we don't even know the name of our tomb."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
tombname=${1}
|
||||
tombmap=`mount -l | awk "/\[${tombname}\]$/"' { print $1 } '`
|
||||
tombmount=`mount -l | awk "/\[${tombname}\]$/"' { print $3 } '`
|
||||
tomb-status $tombmap $tombname $tombmount &!
|
||||
}
|
||||
|
||||
# got an argument
|
||||
if [ $1 ]; then # is it a file?
|
||||
|
||||
tombdir=`dirname $1`
|
||||
tombfile=`basename $1`
|
||||
tombname=${tombfile%%\.*}
|
||||
|
||||
if [ -f ${tombdir}/${tombfile} ]; then
|
||||
|
||||
# is it a luks partition
|
||||
file ${tombdir}/${tombfile} | grep LUKS
|
||||
file ${tombdir}/${tombfile} | grep -i LUKS > /dev/null
|
||||
if [ $? = 0 ]; then # tomb is a valid LUKS file
|
||||
if [ -r ${tombdir}/${tombname}.key ]; then
|
||||
tombkey=${tombdir}/${tombname}.key
|
||||
else
|
||||
ask_usbkey
|
||||
if ! [ $usbkey_mount ]; then # no usb key was mounted
|
||||
echo "key not provided for tomb: $tombname"
|
||||
echo "operation aborted." # TODO: dialog with pinentry
|
||||
exit 1
|
||||
else # usb mounted, check key presence
|
||||
if [ -r ${usbkey_mount}/.tomb/${tombname}.key ]; then
|
||||
tombkey=${usbkey_mount}/.tomb/${tombname}.key
|
||||
elif [ -r ${usbkey_mount}/.tomb ]; then
|
||||
echo "we can't find the right key, have a look yourself:"
|
||||
ls -lha ${usbkey_mount}/.tomb
|
||||
exit 1
|
||||
else
|
||||
echo "there are no keys stored in your usb"
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
if ! [ ${tombkey} ]; then # just to be sure
|
||||
echo "key not found, operation aborted."
|
||||
exit 1
|
||||
else
|
||||
|
||||
tomb mount ${tombdir}/${tombfile}
|
||||
tomb -k ${tombkey} mount ${tombdir}/${tombfile}
|
||||
success=$?
|
||||
fi
|
||||
|
||||
if [ $? = 0 ]; then # mount was succesfull (with password and all)
|
||||
# strip extension if there
|
||||
tombmap=`mount -l | awk "/\[${tombname}\]$/"' { print $1 } '`
|
||||
tombmount=`mount -l | awk "/\[${tombname}\]$/"' { print $3 } '`
|
||||
echo "tomb-status $tombmap $tombname $tombmount"
|
||||
tomb-status $tombmap $tombname $tombmount &!
|
||||
if [ $usbkey_mount ]; then
|
||||
sudo umount ${usbkey_mount}
|
||||
rmdir ${usbkey_mount}
|
||||
unset usbkey_mount
|
||||
fi
|
||||
|
||||
if [ $success = 0 ]; then # mount was succesfull (with password and all)
|
||||
launch_status ${tombname}
|
||||
exit 0
|
||||
else
|
||||
tomb notify "Tomb cannot open." "Are you knocking the wrong door?"
|
||||
tomb-notify "Tomb cannot open." "Are you knocking the wrong door?"
|
||||
exit 1
|
||||
fi
|
||||
else
|
||||
tomb notify "Not a real Tomb." "We found no real bones in there."
|
||||
tomb-notify "Not a real Tomb." "We found no real bones in there."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
@ -74,7 +227,7 @@ if [ $1 ]; then # is it a file?
|
||||
try rox; if [ $? = 0 ]; then rox ${1}; exit 0; fi
|
||||
try fsviewer; if [ $? = 0 ]; then fsviewer ${1}; exit 0; fi
|
||||
# try xnc; if [ $? = 0 ]; then xnc ${1}; exit 0; fi
|
||||
tomb notify "File manager not found." "Tomb cannot guess which filemanager you are using"
|
||||
tomb-notify "File manager not found." "Tomb cannot guess which filemanager you are using"
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
@ -88,7 +241,13 @@ if [ -z $DISPLAY ]; then
|
||||
fi
|
||||
|
||||
# no arguments: start guided tomb creation
|
||||
tomb notify
|
||||
tomb-notify
|
||||
# we do it on the desktop by default
|
||||
if [ -r $HOME/Desktop ]; then
|
||||
cd $HOME/Desktop;
|
||||
# or inside HOME
|
||||
else cd $HOME; fi
|
||||
|
||||
cat <<EOF
|
||||
Create a new Tomb
|
||||
=================
|
||||
@ -115,13 +274,14 @@ fi
|
||||
# let's proceed
|
||||
echo " Please type in the name for your new tomb file:"
|
||||
echo -n "> "
|
||||
read filename
|
||||
read tombname
|
||||
echo " How big you want the Tomb to be?"
|
||||
echo " Type a size number in Megabytes:"
|
||||
echo -n "> "
|
||||
read size
|
||||
read tombsize
|
||||
clear
|
||||
echo " You have commanded the creation of this Tomb:"
|
||||
echo " $filename ( $size MBytes )";
|
||||
echo " $tombname ( $tombsize MBytes )";
|
||||
echo
|
||||
cat <<EOF
|
||||
Please confirm if you want to proceed now:
|
||||
@ -146,22 +306,60 @@ cat <<EOF
|
||||
password:
|
||||
EOF
|
||||
|
||||
tomb create ${filename}.tomb $size
|
||||
tombfile=${tombname}.tomb
|
||||
tomb -s $tombsize create ${tombfile}
|
||||
|
||||
if [ $? != 0 ]; then
|
||||
echo "An error occurred creating tomb, operation aborted."
|
||||
exit 1
|
||||
else
|
||||
tombname="${filename%%.*}"
|
||||
tombmap=`mount -l | awk "/\[${tombname}\]$/"' { print $1 } '`
|
||||
tombmount=`mount -l | awk "/\[${tombname}\]$/"' { print $3 } '`
|
||||
tomb-status $tombmap $tombname $tombmount &!
|
||||
fi
|
||||
|
||||
tomb-notify "The Tomb is ready!" "We will now open your new Tomb for the first time."
|
||||
cat <<EOF
|
||||
Would you like to save the key on an external usb device?"
|
||||
This is recommended for safety:"
|
||||
Always keep the key in a different place than the door!"
|
||||
If you answer yes, you'll need a USB KEY now: (y/n)"
|
||||
EOF
|
||||
# tomb-notify "Tomb has forged a key." "Would you like to save it on USB?"
|
||||
echo -n " > "
|
||||
read -q
|
||||
if [ $? = 0 ]; then
|
||||
ask_usbkey
|
||||
if [ ${usbkey_mount} ]; then
|
||||
|
||||
# if ! [ -r /usr/share/applications/tomb.desktop ]; then
|
||||
# echo " Well done!"
|
||||
# echo " Now the last thing to do is to install Tomb on your desktop:"
|
||||
# sudo tomb install
|
||||
# fi
|
||||
sudo mkdir -m 0700 -p ${usbkey_mount}/.tomb
|
||||
sudo cp -v ${tombname}.key ${usbkey_mount}/.tomb/
|
||||
sudo chmod -R go-rwx ${usbkey_mount}/.tomb
|
||||
|
||||
echo "${tombname}.key succesfully saved on your USB"
|
||||
echo "now we'll proceed opening your brand new tomb"
|
||||
|
||||
tomb -k ${tombname}.key open ${tombfile}
|
||||
if [ $? = 0 ]; then
|
||||
launch_status ${tombname}
|
||||
fi
|
||||
|
||||
rm -f ${tombname}.key
|
||||
|
||||
sudo umount ${usbkey_mount}
|
||||
rmdir ${usbkey_mount}
|
||||
unset usbkey_mount
|
||||
|
||||
exit 0
|
||||
fi
|
||||
fi
|
||||
|
||||
cat <<EOF
|
||||
Impossible to save the key on USB.
|
||||
We recommend to preserve the key in a separate place!
|
||||
You can move it yourself later, place it in a hidden directory
|
||||
named .tomb inside the first partition of an usb key.
|
||||
EOF
|
||||
|
||||
tomb -k ${tombname}.key open ${tombfile}
|
||||
if [ $? = 0 ]; then
|
||||
launch_status ${tombname}
|
||||
fi
|
||||
|
||||
exit 0
|
||||
|
||||
@ -215,6 +215,9 @@ gboolean cb_close(GtkWidget *w, GdkEvent *e) {
|
||||
notify_uninit();
|
||||
exit(0);
|
||||
}
|
||||
/* tomb-notify "Tomb '$tombname' is too busy." \
|
||||
"Close all applications and file managers, then try again."
|
||||
*/
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user