raspberry-pi-remote-ssh.sh

# Modify them!
LPORT="${LPORT:-22}"
RPORT="${RPORT:-8022}"
SSH="${SSH:-"ssh -C -q -N -f"}"
TARGET="${TARGET:-"theuser@remotehost"}"

is_pi() {
    # You can replace this check to your needs.
    # Just make sure you return something true.
    test -f /etc/rpi-issue -a -r /etc/rpi-issue
}

if is_pi
then
    echo "Forwarding L$LPORT to R$RPORT"
    $SSH -R "$RPORT:localhost:$LPORT" "$TARGET"
else
    echo "Forwarding R$RPORT to L$RPORT"
    $SSH -L "$RPORT:localhost:$RPORT" "$TARGET"
fi

echo "Connect to RPi using this command:"
echo "    ssh pi@localhost -p $RPORT"