encfs under KDE

Mounting and unmounting encfs is easy in command line, but I was looking for a solution of doing it in KDE during system startup/shutdown. Here are two scripts which uses KDialog for asking for password and displaying notices.


encfsmount.sh

#!/bin/bash

encrypted=~/.encr
unencrypted=~/myplace

encfs --extpass="kdialog --password 'encfs password'" $encrypted $unencrypted

if  mount|grep $unencrypted > /dev/null 2>&1; then
    kdialog --title "Mounted :)" --passivepopup "$unencrypted mounted succesfully" 10
else
    kdialog --error "$unencrypted not mounted :("
fi

encfsumount.sh

#!/bin/bash

unencrypted=~/myplace

fusermount -u $unencrypted

if  mount|grep $unencrypted > /dev/null 2>&1; then
    kdialog --error "$unencrypted NOT unmounted :("
else
    kdialog --title "Unmounted :)" --passivepopup "$unencrypted unmounted succesfully" 10

fi

Add those two scripts to autostart in KDE (or to your launcher/desktop icons if you prefer to mount/unmount it manually):

It will ask for the password when mounting:

When successful, the notification in the corner should appear:

Bash script to generate knock sequences

Here is a simple bash script to generate random knock/knockd sequences with desired length, port ranges and types:

#!/bin/bash

# ---- config.
knocks_number=5
knocks_types=('udp' 'tcp');

port_min=1000
port_max=2000

# ---- config end

dport=$(( $port_max - $port_min ))

for i in `seq 1 $knocks_number`
do
    sequence=$sequence$[`shuf -i $port_min-$port_max -n 1` ]":"${knocks_types[ $[($RANDOM % 2)] ]}","
done

echo
echo "# A sequence for knockd.conf:"
echo "sequence = $sequence" | sed 's/,$//g'
echo "# A sequence to use with knock"
echo "knock \$ADDRESS $sequence" | sed 's/,/ /g'

The output may looks like:

# A sequence for knockd.conf:
sequence = 1460:udp,1344:tcp,1997:tcp,1712:udp,1304:udp
# A sequence to use with knock
knock $ADDRESS 1460:udp 1344:tcp 1997:tcp 1712:udp 1304:udp