function to remove cjdns

src/freedombone-app-cjdns

@@ -41,424 +41,438 @@ CJDCMD_REPO="https://github.com/inhies/cjdcmd"
 CJDCMD_COMMIT='973cca6ed0eecf9041c3403a40193c0b1291b808'
 
 function configure_firewall_for_cjdns {
-    if grep -Fxq "configure_firewall_for_cjdns" $COMPLETION_FILE; then
-        return
-    fi
-    if [[ $ENABLE_CJDNS != "yes" ]]; then
-        return
-    fi
-    ip6tables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
-    ip6tables -A FORWARD -i tun0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-    function_check save_firewall_settings
-    save_firewall_settings
-    echo 'configure_firewall_for_cjdns' >> $COMPLETION_FILE
+	if grep -Fxq "configure_firewall_for_cjdns" $COMPLETION_FILE; then
+		return
+	fi
+	if [[ $ENABLE_CJDNS != "yes" ]]; then
+		return
+	fi
+	ip6tables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
+	ip6tables -A FORWARD -i tun0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
+	ip6tables -A INPUT -p udp --dport $CJDNS_PORT -j ACCEPT
+	ip6tables -A INPUT -p tcp --dport $CJDNS_PORT -j ACCEPT
+
+	function_check save_firewall_settings
+	save_firewall_settings
+	echo 'configure_firewall_for_cjdns' >> $COMPLETION_FILE
 }
 
 function get_cjdns_public_key {
-    if [ -f /home/$MY_USERNAME/README ]; then
-        if grep -q "cjdns public key" /home/$MY_USERNAME/README; then
-            if [ ! $CJDNS_PUBLIC_KEY ]; then
-                CJDNS_PUBLIC_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns public key" | awk -F ':' '{print $2}' | sed 's/^ *//')
-            fi
-        fi
-    fi
+	if [ -f /home/$MY_USERNAME/README ]; then
+		if grep -q "cjdns public key" /home/$MY_USERNAME/README; then
+			if [ ! $CJDNS_PUBLIC_KEY ]; then
+				CJDNS_PUBLIC_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns public key" | awk -F ':' '{print $2}' | sed 's/^ *//')
+			fi
+		fi
+	fi
 }
 
 function get_cjdns_private_key {
-    if [ -f /home/$MY_USERNAME/README ]; then
-        if grep -q "cjdns private key" /home/$MY_USERNAME/README; then
-            if [ ! $CJDNS_PRIVATE_KEY ]; then
-                CJDNS_PRIVATE_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns private key" | awk -F ':' '{print $2}' | sed 's/^ *//')
-            fi
-        fi
-    fi
+	if [ -f /home/$MY_USERNAME/README ]; then
+		if grep -q "cjdns private key" /home/$MY_USERNAME/README; then
+			if [ ! $CJDNS_PRIVATE_KEY ]; then
+				CJDNS_PRIVATE_KEY=$(cat /home/$MY_USERNAME/README | grep "cjdns private key" | awk -F ':' '{print $2}' | sed 's/^ *//')
+			fi
+		fi
+	fi
 }
 
 function get_cjdns_ipv6_address {
-    if [ -f /home/$MY_USERNAME/README ]; then
-        if grep -q "cjdns IPv6 address" /home/$MY_USERNAME/README; then
-            if [ ! $CJDNS_IPV6 ]; then
-                CJDNS_IPV6=$(cat /home/$MY_USERNAME/README | grep "cjdns IPv6 address" | awk -F ':' '{print $2}' | sed 's/^ *//')
-            fi
-        fi
-    fi
+	if [ -f /home/$MY_USERNAME/README ]; then
+		if grep -q "cjdns IPv6 address" /home/$MY_USERNAME/README; then
+			if [ ! $CJDNS_IPV6 ]; then
+				CJDNS_IPV6=$(cat /home/$MY_USERNAME/README | grep "cjdns IPv6 address" | awk -F ':' '{print $2}' | sed 's/^ *//')
+			fi
+		fi
+	fi
 }
 
 function get_cjdns_port {
-    if [ -f /home/$MY_USERNAME/README ]; then
-        if grep -q "cjdns port" /home/$MY_USERNAME/README; then
-            if [ ! $CJDNS_PORT ]; then
-                CJDNS_PORT=$(cat /home/$MY_USERNAME/README | grep "cjdns port" | awk -F ':' '{print $2}' | sed 's/^ *//')
-            fi
-        fi
-    fi
+	if [ -f /home/$MY_USERNAME/README ]; then
+		if grep -q "cjdns port" /home/$MY_USERNAME/README; then
+			if [ ! $CJDNS_PORT ]; then
+				CJDNS_PORT=$(cat /home/$MY_USERNAME/README | grep "cjdns port" | awk -F ':' '{print $2}' | sed 's/^ *//')
+			fi
+		fi
+	fi
 }
 
 function get_cjdns_password {
-    if [ -f /home/$MY_USERNAME/README ]; then
-        if grep -q "cjdns password" /home/$MY_USERNAME/README; then
-            if [ ! $CJDNS_PASSWORD ]; then
-                CJDNS_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "cjdns password" | awk -F ':' '{print $2}' | sed 's/^ *//')
-            fi
-        fi
-    fi
+	if [ -f /home/$MY_USERNAME/README ]; then
+		if grep -q "cjdns password" /home/$MY_USERNAME/README; then
+			if [ ! $CJDNS_PASSWORD ]; then
+				CJDNS_PASSWORD=$(cat /home/$MY_USERNAME/README | grep "cjdns password" | awk -F ':' '{print $2}' | sed 's/^ *//')
+			fi
+		fi
+	fi
+}
+
+function remove_cjdns {
+	if ! grep -Fxq "mesh_cjdns" $COMPLETION_FILE; then
+		return
+	fi
+	service cjdns stop
+	ip6tables -t nat -D POSTROUTING -o tun0 -j MASQUERADE
+	ip6tables -D FORWARD -i tun0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
+	ip6tables -D INPUT -p udp --dport $CJDNS_PORT -j ACCEPT
+	ip6tables -D INPUT -p tcp --dport $CJDNS_PORT -j ACCEPT
+	function_check save_firewall_settings
+	save_firewall_settings
+
+	rm -rf /etc/cjdns
+	sed -i '/mesh_cjdns/d' $COMPLETION_FILE
+	sed -i '/configure_firewall_for_cjdns/d' $COMPLETION_FILE
 }
 
 function mesh_cjdns {
-    if [[ $ENABLE_CJDNS != "yes" ]]; then
-        return
-    fi
-
-    # update to the next commit
-    function_check set_repo_commit
-    set_repo_commit /etc/cjdns "cjdns commit" "$CJDNS_COMMIT" $CJDNS_REPO
-
-    if grep -Fxq "mesh_cjdns" $COMPLETION_FILE; then
-        return
-    fi
-
-    apt-get -y install nodejs git build-essential nmap
-
-    # if a README exists then obtain the cjdns parameters
-    function_check get_cjdns_ipv6_address
-    get_cjdns_ipv6_address
-
-    function_check get_cjdns_public_key
-    get_cjdns_public_key
-
-    function_check get_cjdns_private_key
-    get_cjdns_private_key
-
-    function_check get_cjdns_port
-    get_cjdns_port
-
-    function_check get_cjdns_password
-    get_cjdns_password
-
-    # special compile settings for running ./do on the Beaglebone Black
-    if [[ $INSTALLING_ON_BBB == "yes" ]]; then
-        CFLAGS="-O2 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -ffast-math -mfloat-abi=hard -marm -Wno-error=maybe-uninitialized"
-        export LDFLAGS="$CFLAGS"
-    fi
-
-    if [ ! -d /etc/cjdns ]; then
-        function_check git_pull
-        git_clone $CJDNS_REPO /etc/cjdns
-        cd /etc/cjdns
-
-        git checkout $CJDNS_COMMIT -b $CJDNS_COMMIT
-        if ! grep -q "cjdns commit" $COMPLETION_FILE; then
-            echo "cjdns commit:$CJDNS_COMMIT" >> $COMPLETION_FILE
-        else
-            sed -i "s/cjdns commit.*/cjdns commit:$CJDNS_COMMIT/g" $COMPLETION_FILE
-        fi
-
-        ./do
-        if [ ! "$?" = "0" ]; then
-            exit 7439
-        fi
-        # create a configuration
-        if [ ! -f /etc/cjdns/cjdroute.conf ]; then
-            ./cjdroute --genconf > /etc/cjdns/cjdroute.conf
-            if [ ! "$?" = "0" ]; then
-                exit 5922
-            fi
-        fi
-        # create a user to run as
-        useradd cjdns
-    else
-        cd /etc/cjdns
-        function_check git_pull
-        git_pull $CJDNS_REPO
-        ./do
-        if [ ! "$?" = "0" ]; then
-            exit 9926
-        fi
-    fi
-
-    # set permissions
-    chown -R cjdns:cjdns /etc/cjdns
-    chmod 600 /etc/cjdns/cjdroute.conf
-
-    /sbin/ip tuntap add mode tun user cjdns dev cjdroute0
-
-    # insert values into the configuration file
-    if [ $CJDNS_PRIVATE_KEY ]; then
-        sed -i "s/\"privateKey\":.*/\"privateKey\": \"$CJDNS_PRIVATE_KEY\",/g" /etc/cjdns/cjdroute.conf
-    else
-        CJDNS_PRIVATE_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"privateKey"' | awk -F '"' '{print $4}' | sed -n 1p)
-    fi
-    if [ $CJDNS_PUBLIC_KEY ]; then
-        sed -i "s/\"publicKey\":.*/\"publicKey\": \"$CJDNS_PUBLIC_KEY\",/g" /etc/cjdns/cjdroute.conf
-    else
-        CJDNS_PUBLIC_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"publicKey"' | awk -F '"' '{print $4}' | sed -n 1p)
-    fi
-    if [ $CJDNS_IPV6 ]; then
-        sed -i "s/\"ipv6\":.*/\"ipv6\": \"$CJDNS_IPV6\",/g" /etc/cjdns/cjdroute.conf
-    else
-        CJDNS_IPV6=$(cat /etc/cjdns/cjdroute.conf | grep '"ipv6"' | awk -F '"' '{print $4}' | sed -n 1p)
-    fi
-    if [ $CJDNS_PASSWORD ]; then
-        sed -i "0,/{\"password\":.*/s//{\"password\": \"$CJDNS_PASSWORD\"}/g" /etc/cjdns/cjdroute.conf
-    else
-        CJDNS_PASSWORD=$(cat /etc/cjdns/cjdroute.conf | grep '"password"' | awk -F '"' '{print $4}' | sed -n 1p)
-    fi
-    if [ $CJDNS_PORT ]; then
-        sed -i "s/\"bind\": \"0.0.0.0:.*/\"bind\": \"0.0.0.0:$CJDNS_PORT\",/g" /etc/cjdns/cjdroute.conf
-    else
-        CJDNS_PORT=$(cat /etc/cjdns/cjdroute.conf | grep '"bind": "0.0.0.0:' | awk -F '"' '{print $4}' | awk -F ':' '{print $2}' | sed -n 1p)
-    fi
-
-    function_check enable_ipv6
-    enable_ipv6
-
-    echo '#!/bin/sh -e' > /etc/init.d/cjdns
-    echo '### BEGIN INIT INFO' >> /etc/init.d/cjdns
-    echo '# hyperboria.sh - An init script (/etc/init.d/) for cjdns' >> /etc/init.d/cjdns
-    echo '# Provides:          cjdroute' >> /etc/init.d/cjdns
-    echo '# Required-Start:    $remote_fs $network' >> /etc/init.d/cjdns
-    echo '# Required-Stop:     $remote_fs $network' >> /etc/init.d/cjdns
-    echo '# Default-Start:     2 3 4 5' >> /etc/init.d/cjdns
-    echo '# Default-Stop:      0 1 6' >> /etc/init.d/cjdns
-    echo '# Short-Description: Cjdns router' >> /etc/init.d/cjdns
-    echo '# Description:       A routing engine designed for security, scalability, speed and ease of use.' >> /etc/init.d/cjdns
-    echo '# cjdns git repo:    https://github.com/cjdelisle/cjdns/' >> /etc/init.d/cjdns
-    echo '### END INIT INFO' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo 'PROG="cjdroute"' >> /etc/init.d/cjdns
-    echo 'GIT_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
-    echo 'PROG_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
-    echo 'CJDNS_CONFIG="cjdroute.conf"' >> /etc/init.d/cjdns
-    echo 'CJDNS_USER="cjdns"' >> /etc/init.d/cjdns
-    echo "CJDNS_IP='$CJDNS_IPV6'" >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo 'start() {' >> /etc/init.d/cjdns
-    echo '     # Start it up with the user cjdns' >> /etc/init.d/cjdns
-    echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
-    echo '     then' >> /etc/init.d/cjdns
-    echo '         echo "cjdroute is already running. Doing nothing..."' >> /etc/init.d/cjdns
-    echo '     else' >> /etc/init.d/cjdns
-    echo '         echo " * Starting cjdroute"' >> /etc/init.d/cjdns
-    echo '         su -c "$PROG_PATH/$PROG < $PROG_PATH/$CJDNS_CONFIG" - $CJDNS_USER' >> /etc/init.d/cjdns
-    echo '         /sbin/ip addr add $CJDNS_IP/8 dev tun0' >> /etc/init.d/cjdns
-    echo '         /sbin/ip link set mtu 1312 dev tun0' >> /etc/init.d/cjdns
-    echo '         /sbin/ip link set tun0 up' >> /etc/init.d/cjdns
-    echo '         /sbin/ip tuntap add mode tun user cjdns dev tun0' >> /etc/init.d/cjdns
-    echo '     fi' >> /etc/init.d/cjdns
-    echo '}' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo 'stop() {' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo '     if [ $(pgrep cjdroute | wc -l) != 2 ];' >> /etc/init.d/cjdns
-    echo '     then' >> /etc/init.d/cjdns
-    echo '         echo "cjdns isnt running."' >> /etc/init.d/cjdns
-    echo '     else' >> /etc/init.d/cjdns
-    echo '         echo "Killing cjdroute"' >> /etc/init.d/cjdns
-    echo '         killall cjdroute' >> /etc/init.d/cjdns
-    echo '     fi' >> /etc/init.d/cjdns
-    echo '}' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo 'status() {' >> /etc/init.d/cjdns
-    echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
-    echo '     then' >> /etc/init.d/cjdns
-    echo '         echo "Cjdns is running"' >> /etc/init.d/cjdns
-    echo '     else' >> /etc/init.d/cjdns
-    echo '         echo "Cjdns is not running"' >> /etc/init.d/cjdns
-    echo '     fi' >> /etc/init.d/cjdns
-    echo '}' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo ' update() {' >> /etc/init.d/cjdns
-    echo '     cd $GIT_PATH' >> /etc/init.d/cjdns
-    echo '     echo "Updating..."' >> /etc/init.d/cjdns
-    echo '     git pull' >> /etc/init.d/cjdns
-    echo '     ./do' >> /etc/init.d/cjdns
-    echo '}' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo '## Check to see if we are running as root first.' >> /etc/init.d/cjdns
-    echo 'if [ "$(id -u)" != "0" ]; then' >> /etc/init.d/cjdns
-    echo '    echo "This script must be run as root" 1>&2' >> /etc/init.d/cjdns
-    echo '    exit 1' >> /etc/init.d/cjdns
-    echo 'fi' >> /etc/init.d/cjdns
-    echo '' >> /etc/init.d/cjdns
-    echo 'case $1 in' >> /etc/init.d/cjdns
-    echo '     start)' >> /etc/init.d/cjdns
-    echo '         start' >> /etc/init.d/cjdns
-    echo '         exit 0' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo '     stop)' >> /etc/init.d/cjdns
-    echo '         stop' >> /etc/init.d/cjdns
-    echo '         exit 0' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo '     reload|restart|force-reload)' >> /etc/init.d/cjdns
-    echo '         stop' >> /etc/init.d/cjdns
-    echo '         sleep 1' >> /etc/init.d/cjdns
-    echo '         start' >> /etc/init.d/cjdns
-    echo '         exit 0' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo '     status)' >> /etc/init.d/cjdns
-    echo '         status' >> /etc/init.d/cjdns
-    echo '         exit 0' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo '     update|upgrade)' >> /etc/init.d/cjdns
-    echo '         update' >> /etc/init.d/cjdns
-    echo '         stop' >> /etc/init.d/cjdns
-    echo '         sleep 2' >> /etc/init.d/cjdns
-    echo '         start' >> /etc/init.d/cjdns
-    echo '         exit 0' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo '     **)' >> /etc/init.d/cjdns
-    echo '         echo "Usage: $0 (start|stop|restart|status|update)" 1>&2' >> /etc/init.d/cjdns
-    echo '         exit 1' >> /etc/init.d/cjdns
-    echo '     ;;' >> /etc/init.d/cjdns
-    echo 'esac' >> /etc/init.d/cjdns
-    chmod +x /etc/init.d/cjdns
-    update-rc.d cjdns defaults
-    service cjdns start
-    if [ ! "$?" = "0" ]; then
-        systemctl status cjdns.service
-        exit 8260
-    fi
-
-    apt-get -y install radvd
-    echo 'interface eth0' > /etc/radvd.conf
-    echo '{' >> /etc/radvd.conf
-    echo '    AdvSendAdvert on;' >> /etc/radvd.conf
-    echo '    prefix fdfc::1/64' >> /etc/radvd.conf
-    echo '    {' >> /etc/radvd.conf
-    echo '        AdvRouterAddr on;' >> /etc/radvd.conf
-    echo '    };' >> /etc/radvd.conf
-    echo '};' >> /etc/radvd.conf
-    systemctl restart radvd
-    if [ ! "$?" = "0" ]; then
-        systemctl status radvd.service
-        exit 4395
-    fi
-
-    if ! grep -q "# Mesh Networking (cjdns)" /etc/network/interfaces; then
-        echo '' >> /etc/network/interfaces
-        echo '# Mesh Networking (cjdns)' >> /etc/network/interfaces
-        echo 'iface eth0 inet6 static' >> /etc/network/interfaces
-        echo '    pre-up modprobe ipv6' >> /etc/network/interfaces
-        echo '    address fdfc:0000:0000:0000:0000:0000:0000:0001' >> /etc/network/interfaces
-        echo '    netmask 64' >> /etc/network/interfaces
-        service network-manager restart
-        if [ ! "$?" = "0" ]; then
-            systemctl status networking.service
-            exit 6949
-        fi
-    fi
-
-    ip6tables -A INPUT -p udp --dport $CJDNS_PORT -j ACCEPT
-    ip6tables -A INPUT -p tcp --dport $CJDNS_PORT -j ACCEPT
-
-    function_ckeck save_firewall_settings
-    save_firewall_settings
-
-    if ! grep -q $"Mesh Networking (cjdns)" /home/$MY_USERNAME/README; then
-        CURRENT_IP_ADDRESS=$(ip addr show | grep "inet " | sed -n 2p | awk -F ' ' '{print $2}' | awk -F '/' '{print $1}')
-
-        echo '' >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'Mesh Networking (cjdns)' >> /home/$MY_USERNAME/README
-        echo '=======================' >> /home/$MY_USERNAME/README
-        echo $"cjdns IPv6 address: $CJDNS_IPV6" >> /home/$MY_USERNAME/README
-        echo $"cjdns public key: $CJDNS_PUBLIC_KEY" >> /home/$MY_USERNAME/README
-        echo $"cjdns private key: $CJDNS_PRIVATE_KEY" >> /home/$MY_USERNAME/README
-        echo $"cjdns password: $CJDNS_PASSWORD" >> /home/$MY_USERNAME/README
-        echo $"cjdns port: $CJDNS_PORT" >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $"Forward port $CJDNS_PORT from your internet router to the ${PROJECT_NAME}" >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'Below is an example of your connection credentials' >> /home/$MY_USERNAME/README
-        echo $'that you can give to other people so they can connect' >> /home/$MY_USERNAME/README
-        echo $'to you using your default password' >> /home/$MY_USERNAME/README
-        echo $'Adding a unique password for each user is advisable' >> /home/$MY_USERNAME/README
-        echo $'so that leaks can be isolated.' >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo "\"$CURRENT_IP_ADDRESS:$CJDNS_PORT\":{\"password\":\"$CJDNS_PASSWORD\",\"publicKey\":\"$CJDNS_PUBLIC_KEY\"}" >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'More is not better. 3-5 cjdns peers is good. 30 peers is bad.' >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'NEVER USE A PUBLIC PEER. These degrade the network and make it centralized.' >> /home/$MY_USERNAME/README
-        echo $'Each node can handle many peers, but no node can handle the entire internet.' >> /home/$MY_USERNAME/README
-        echo $'As this network grows any public peer will simply become saturated and' >> /home/$MY_USERNAME/README
-        echo $'useless causing issues for the entire network.' >> /home/$MY_USERNAME/README
-        echo $'Please report anyone offering you a public peer as they are promoting shared' >> /home/$MY_USERNAME/README
-        echo $'passwords which could lead to people pretending to be you. A peering pass' >> /home/$MY_USERNAME/README
-        echo $'should not contain someone elses nickname or info but should contain yours' >> /home/$MY_USERNAME/README
-        echo $'to ensure it is not shared. It also helps when editing the conf to know who' >> /home/$MY_USERNAME/README
-        echo $'each password is for.' >> /home/$MY_USERNAME/README
-        echo '' >> /home/$MY_USERNAME/README
-        echo $'Possible cjdns destinations of interest:' >> /home/$MY_USERNAME/README
-        echo '    http://transitiontech.ca/faq' >> /home/$MY_USERNAME/README
-        echo '    http://cjdns.ca/hypeirc.txt' >> /home/$MY_USERNAME/README
-        chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
-        chmod 600 /home/$MY_USERNAME/README
-    fi
-
-    function_check configure_firewall_for_cjdns
-    configure_firewall_for_cjdns
-
-    echo 'mesh_cjdns' >> $COMPLETION_FILE
+	if [[ $ENABLE_CJDNS != "yes" ]]; then
+		return
+	fi
+
+	# update to the next commit
+	function_check set_repo_commit
+	set_repo_commit /etc/cjdns "cjdns commit" "$CJDNS_COMMIT" $CJDNS_REPO
+
+	if grep -Fxq "mesh_cjdns" $COMPLETION_FILE; then
+		return
+	fi
+
+	apt-get -y install nodejs git build-essential nmap
+
+	# if a README exists then obtain the cjdns parameters
+	function_check get_cjdns_ipv6_address
+	get_cjdns_ipv6_address
+
+	function_check get_cjdns_public_key
+	get_cjdns_public_key
+
+	function_check get_cjdns_private_key
+	get_cjdns_private_key
+
+	function_check get_cjdns_port
+	get_cjdns_port
+
+	function_check get_cjdns_password
+	get_cjdns_password
+
+	# special compile settings for running ./do on the Beaglebone Black
+	if [[ $INSTALLING_ON_BBB == "yes" ]]; then
+		CFLAGS="-O2 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -ffast-math -mfloat-abi=hard -marm -Wno-error=maybe-uninitialized"
+		export LDFLAGS="$CFLAGS"
+	fi
+
+	if [ ! -d /etc/cjdns ]; then
+		function_check git_pull
+		git_clone $CJDNS_REPO /etc/cjdns
+		cd /etc/cjdns
+
+		git checkout $CJDNS_COMMIT -b $CJDNS_COMMIT
+		if ! grep -q "cjdns commit" $COMPLETION_FILE; then
+			echo "cjdns commit:$CJDNS_COMMIT" >> $COMPLETION_FILE
+		else
+			sed -i "s/cjdns commit.*/cjdns commit:$CJDNS_COMMIT/g" $COMPLETION_FILE
+		fi
+
+		./do
+		if [ ! "$?" = "0" ]; then
+			exit 7439
+		fi
+		# create a configuration
+		if [ ! -f /etc/cjdns/cjdroute.conf ]; then
+			./cjdroute --genconf > /etc/cjdns/cjdroute.conf
+			if [ ! "$?" = "0" ]; then
+				exit 5922
+			fi
+		fi
+		# create a user to run as
+		useradd cjdns
+	else
+		cd /etc/cjdns
+		function_check git_pull
+		git_pull $CJDNS_REPO
+		./do
+		if [ ! "$?" = "0" ]; then
+			exit 9926
+		fi
+	fi
+
+	# set permissions
+	chown -R cjdns:cjdns /etc/cjdns
+	chmod 600 /etc/cjdns/cjdroute.conf
+
+	/sbin/ip tuntap add mode tun user cjdns dev cjdroute0
+
+	# insert values into the configuration file
+	if [ $CJDNS_PRIVATE_KEY ]; then
+		sed -i "s/\"privateKey\":.*/\"privateKey\": \"$CJDNS_PRIVATE_KEY\",/g" /etc/cjdns/cjdroute.conf
+	else
+		CJDNS_PRIVATE_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"privateKey"' | awk -F '"' '{print $4}' | sed -n 1p)
+	fi
+	if [ $CJDNS_PUBLIC_KEY ]; then
+		sed -i "s/\"publicKey\":.*/\"publicKey\": \"$CJDNS_PUBLIC_KEY\",/g" /etc/cjdns/cjdroute.conf
+	else
+		CJDNS_PUBLIC_KEY=$(cat /etc/cjdns/cjdroute.conf | grep '"publicKey"' | awk -F '"' '{print $4}' | sed -n 1p)
+	fi
+	if [ $CJDNS_IPV6 ]; then
+		sed -i "s/\"ipv6\":.*/\"ipv6\": \"$CJDNS_IPV6\",/g" /etc/cjdns/cjdroute.conf
+	else
+		CJDNS_IPV6=$(cat /etc/cjdns/cjdroute.conf | grep '"ipv6"' | awk -F '"' '{print $4}' | sed -n 1p)
+	fi
+	if [ $CJDNS_PASSWORD ]; then
+		sed -i "0,/{\"password\":.*/s//{\"password\": \"$CJDNS_PASSWORD\"}/g" /etc/cjdns/cjdroute.conf
+	else
+		CJDNS_PASSWORD=$(cat /etc/cjdns/cjdroute.conf | grep '"password"' | awk -F '"' '{print $4}' | sed -n 1p)
+	fi
+	if [ $CJDNS_PORT ]; then
+		sed -i "s/\"bind\": \"0.0.0.0:.*/\"bind\": \"0.0.0.0:$CJDNS_PORT\",/g" /etc/cjdns/cjdroute.conf
+	else
+		CJDNS_PORT=$(cat /etc/cjdns/cjdroute.conf | grep '"bind": "0.0.0.0:' | awk -F '"' '{print $4}' | awk -F ':' '{print $2}' | sed -n 1p)
+	fi
+
+	function_check enable_ipv6
+	enable_ipv6
+
+	echo '#!/bin/sh -e' > /etc/init.d/cjdns
+	echo '### BEGIN INIT INFO' >> /etc/init.d/cjdns
+	echo '# hyperboria.sh - An init script (/etc/init.d/) for cjdns' >> /etc/init.d/cjdns
+	echo '# Provides:          cjdroute' >> /etc/init.d/cjdns
+	echo '# Required-Start:    $remote_fs $network' >> /etc/init.d/cjdns
+	echo '# Required-Stop:     $remote_fs $network' >> /etc/init.d/cjdns
+	echo '# Default-Start:     2 3 4 5' >> /etc/init.d/cjdns
+	echo '# Default-Stop:      0 1 6' >> /etc/init.d/cjdns
+	echo '# Short-Description: Cjdns router' >> /etc/init.d/cjdns
+	echo '# Description:       A routing engine designed for security, scalability, speed and ease of use.' >> /etc/init.d/cjdns
+	echo '# cjdns git repo:    https://github.com/cjdelisle/cjdns/' >> /etc/init.d/cjdns
+	echo '### END INIT INFO' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo 'PROG="cjdroute"' >> /etc/init.d/cjdns
+	echo 'GIT_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
+	echo 'PROG_PATH="/etc/cjdns"' >> /etc/init.d/cjdns
+	echo 'CJDNS_CONFIG="cjdroute.conf"' >> /etc/init.d/cjdns
+	echo 'CJDNS_USER="cjdns"' >> /etc/init.d/cjdns
+	echo "CJDNS_IP='$CJDNS_IPV6'" >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo 'start() {' >> /etc/init.d/cjdns
+	echo '     # Start it up with the user cjdns' >> /etc/init.d/cjdns
+	echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
+	echo '     then' >> /etc/init.d/cjdns
+	echo '         echo "cjdroute is already running. Doing nothing..."' >> /etc/init.d/cjdns
+	echo '     else' >> /etc/init.d/cjdns
+	echo '         echo " * Starting cjdroute"' >> /etc/init.d/cjdns
+	echo '         su -c "$PROG_PATH/$PROG < $PROG_PATH/$CJDNS_CONFIG" - $CJDNS_USER' >> /etc/init.d/cjdns
+	echo '         /sbin/ip addr add $CJDNS_IP/8 dev tun0' >> /etc/init.d/cjdns
+	echo '         /sbin/ip link set mtu 1312 dev tun0' >> /etc/init.d/cjdns
+	echo '         /sbin/ip link set tun0 up' >> /etc/init.d/cjdns
+	echo '         /sbin/ip tuntap add mode tun user cjdns dev tun0' >> /etc/init.d/cjdns
+	echo '     fi' >> /etc/init.d/cjdns
+	echo '}' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo 'stop() {' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo '     if [ $(pgrep cjdroute | wc -l) != 2 ];' >> /etc/init.d/cjdns
+	echo '     then' >> /etc/init.d/cjdns
+	echo '         echo "cjdns isnt running."' >> /etc/init.d/cjdns
+	echo '     else' >> /etc/init.d/cjdns
+	echo '         echo "Killing cjdroute"' >> /etc/init.d/cjdns
+	echo '         killall cjdroute' >> /etc/init.d/cjdns
+	echo '     fi' >> /etc/init.d/cjdns
+	echo '}' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo 'status() {' >> /etc/init.d/cjdns
+	echo '     if [ $(pgrep cjdroute | wc -l) != 0 ];' >> /etc/init.d/cjdns
+	echo '     then' >> /etc/init.d/cjdns
+	echo '         echo "Cjdns is running"' >> /etc/init.d/cjdns
+	echo '     else' >> /etc/init.d/cjdns
+	echo '         echo "Cjdns is not running"' >> /etc/init.d/cjdns
+	echo '     fi' >> /etc/init.d/cjdns
+	echo '}' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo ' update() {' >> /etc/init.d/cjdns
+	echo '     cd $GIT_PATH' >> /etc/init.d/cjdns
+	echo '     echo "Updating..."' >> /etc/init.d/cjdns
+	echo '     git pull' >> /etc/init.d/cjdns
+	echo '     ./do' >> /etc/init.d/cjdns
+	echo '}' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo '## Check to see if we are running as root first.' >> /etc/init.d/cjdns
+	echo 'if [ "$(id -u)" != "0" ]; then' >> /etc/init.d/cjdns
+	echo '    echo "This script must be run as root" 1>&2' >> /etc/init.d/cjdns
+	echo '    exit 1' >> /etc/init.d/cjdns
+	echo 'fi' >> /etc/init.d/cjdns
+	echo '' >> /etc/init.d/cjdns
+	echo 'case $1 in' >> /etc/init.d/cjdns
+	echo '     start)' >> /etc/init.d/cjdns
+	echo '         start' >> /etc/init.d/cjdns
+	echo '         exit 0' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo '     stop)' >> /etc/init.d/cjdns
+	echo '         stop' >> /etc/init.d/cjdns
+	echo '         exit 0' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo '     reload|restart|force-reload)' >> /etc/init.d/cjdns
+	echo '         stop' >> /etc/init.d/cjdns
+	echo '         sleep 1' >> /etc/init.d/cjdns
+	echo '         start' >> /etc/init.d/cjdns
+	echo '         exit 0' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo '     status)' >> /etc/init.d/cjdns
+	echo '         status' >> /etc/init.d/cjdns
+	echo '         exit 0' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo '     update|upgrade)' >> /etc/init.d/cjdns
+	echo '         update' >> /etc/init.d/cjdns
+	echo '         stop' >> /etc/init.d/cjdns
+	echo '         sleep 2' >> /etc/init.d/cjdns
+	echo '         start' >> /etc/init.d/cjdns
+	echo '         exit 0' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo '     **)' >> /etc/init.d/cjdns
+	echo '         echo "Usage: $0 (start|stop|restart|status|update)" 1>&2' >> /etc/init.d/cjdns
+	echo '         exit 1' >> /etc/init.d/cjdns
+	echo '     ;;' >> /etc/init.d/cjdns
+	echo 'esac' >> /etc/init.d/cjdns
+	chmod +x /etc/init.d/cjdns
+	update-rc.d cjdns defaults
+	service cjdns start
+	if [ ! "$?" = "0" ]; then
+		systemctl status cjdns.service
+		exit 8260
+	fi
+
+	apt-get -y install radvd
+	echo 'interface eth0' > /etc/radvd.conf
+	echo '{' >> /etc/radvd.conf
+	echo '    AdvSendAdvert on;' >> /etc/radvd.conf
+	echo '    prefix fdfc::1/64' >> /etc/radvd.conf
+	echo '    {' >> /etc/radvd.conf
+	echo '        AdvRouterAddr on;' >> /etc/radvd.conf
+	echo '    };' >> /etc/radvd.conf
+	echo '};' >> /etc/radvd.conf
+	systemctl restart radvd
+	if [ ! "$?" = "0" ]; then
+		systemctl status radvd.service
+		exit 4395
+	fi
+
+	if ! grep -q "# Mesh Networking (cjdns)" /etc/network/interfaces; then
+		echo '' >> /etc/network/interfaces
+		echo '# Mesh Networking (cjdns)' >> /etc/network/interfaces
+		echo 'iface eth0 inet6 static' >> /etc/network/interfaces
+		echo '    pre-up modprobe ipv6' >> /etc/network/interfaces
+		echo '    address fdfc:0000:0000:0000:0000:0000:0000:0001' >> /etc/network/interfaces
+		echo '    netmask 64' >> /etc/network/interfaces
+		service network-manager restart
+		if [ ! "$?" = "0" ]; then
+			systemctl status networking.service
+			exit 6949
+		fi
+	fi
+
+	if ! grep -q $"Mesh Networking (cjdns)" /home/$MY_USERNAME/README; then
+		CURRENT_IP_ADDRESS=$(ip addr show | grep "inet " | sed -n 2p | awk -F ' ' '{print $2}' | awk -F '/' '{print $1}')
+
+		echo '' >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $'Mesh Networking (cjdns)' >> /home/$MY_USERNAME/README
+		echo '=======================' >> /home/$MY_USERNAME/README
+		echo $"cjdns IPv6 address: $CJDNS_IPV6" >> /home/$MY_USERNAME/README
+		echo $"cjdns public key: $CJDNS_PUBLIC_KEY" >> /home/$MY_USERNAME/README
+		echo $"cjdns private key: $CJDNS_PRIVATE_KEY" >> /home/$MY_USERNAME/README
+		echo $"cjdns password: $CJDNS_PASSWORD" >> /home/$MY_USERNAME/README
+		echo $"cjdns port: $CJDNS_PORT" >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $"Forward port $CJDNS_PORT from your internet router to the ${PROJECT_NAME}" >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $'Below is an example of your connection credentials' >> /home/$MY_USERNAME/README
+		echo $'that you can give to other people so they can connect' >> /home/$MY_USERNAME/README
+		echo $'to you using your default password' >> /home/$MY_USERNAME/README
+		echo $'Adding a unique password for each user is advisable' >> /home/$MY_USERNAME/README
+		echo $'so that leaks can be isolated.' >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo "\"$CURRENT_IP_ADDRESS:$CJDNS_PORT\":{\"password\":\"$CJDNS_PASSWORD\",\"publicKey\":\"$CJDNS_PUBLIC_KEY\"}" >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $'More is not better. 3-5 cjdns peers is good. 30 peers is bad.' >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $'NEVER USE A PUBLIC PEER. These degrade the network and make it centralized.' >> /home/$MY_USERNAME/README
+		echo $'Each node can handle many peers, but no node can handle the entire internet.' >> /home/$MY_USERNAME/README
+		echo $'As this network grows any public peer will simply become saturated and' >> /home/$MY_USERNAME/README
+		echo $'useless causing issues for the entire network.' >> /home/$MY_USERNAME/README
+		echo $'Please report anyone offering you a public peer as they are promoting shared' >> /home/$MY_USERNAME/README
+		echo $'passwords which could lead to people pretending to be you. A peering pass' >> /home/$MY_USERNAME/README
+		echo $'should not contain someone elses nickname or info but should contain yours' >> /home/$MY_USERNAME/README
+		echo $'to ensure it is not shared. It also helps when editing the conf to know who' >> /home/$MY_USERNAME/README
+		echo $'each password is for.' >> /home/$MY_USERNAME/README
+		echo '' >> /home/$MY_USERNAME/README
+		echo $'Possible cjdns destinations of interest:' >> /home/$MY_USERNAME/README
+		echo '    http://transitiontech.ca/faq' >> /home/$MY_USERNAME/README
+		echo '    http://cjdns.ca/hypeirc.txt' >> /home/$MY_USERNAME/README
+		chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
+		chmod 600 /home/$MY_USERNAME/README
+	fi
+
+	function_check configure_firewall_for_cjdns
+	configure_firewall_for_cjdns
+
+	echo 'mesh_cjdns' >> $COMPLETION_FILE
 }
 
 function mesh_cjdns_tools {
-    if grep -Fxq "mesh_cjdns_tools" $COMPLETION_FILE; then
-        return
-    fi
-    if [[ $ENABLE_CJDNS != "yes" ]]; then
-        return
-    fi
-    if [ ! -d /etc/cjdns ]; then
-        mesh_cjdns
-    fi
-
-    function_check select_go_version
-    select_go_version
-
-    apt-get -y install golang mercurial
-    if [ ! -f ~/.bashrc ]; then
-        touch ~/.bashrc
-    fi
-
-    if [ ! -d /home/git ]; then
-        # add a gogs user account
-        adduser --disabled-login --gecos 'Gogs' git
-
-        # install Go
-        if ! grep -q "export GOPATH=" ~/.bashrc; then
-            echo "export GOPATH=$GOPATH" >> ~/.bashrc
-        fi
-        systemctl set-environment GOPATH=$GOPATH
-        if ! grep -q "systemctl set-environment GOPATH=" ~/.bashrc; then
-            echo "systemctl set-environment GOPATH=$GOPATH" >> ~/.bashrc
-        fi
-        if [ ! -d $GOPATH ]; then
-            mkdir -p $GOPATH
-        fi
-    fi
-
-    if ! grep -q "export GOPATH=" ~/.bashrc; then
-        echo "export GOPATH=$GOPATH" >> ~/.bashrc
-    fi
-    expected_go_path='export PATH=$PATH:'${GOPATH}'/bin'
-    export PATH=$PATH:${GOPATH}/bin
-    if ! grep -q "$expected_go_path" ~/.bashrc; then
-        echo "$expected_go_path" >> ~/.bashrc
-    fi
-    export PATH=$PATH:$GOPATH/bin
-    CJDCMD_REPO2=$(echo "$CJDCMD_REPO" | sed 's|https://||g')
-    go get $CJDCMD_REPO2
-    if [ ! -f $GOPATH/bin/cjdcmd ]; then
-        echo $'cjdcmd was not compiled. Check your golang installation'
-        exit 7439
-    fi
-    cp $GOPATH/bin/cjdcmd /usr/bin
-
-    # initialise from the cjdns config
-    /usr/bin/cjdcmd cjdnsadmin -file /etc/cjdns/cjdroute.conf
-
-    echo 'mesh_cjdns_tools' >> $COMPLETION_FILE
+	if grep -Fxq "mesh_cjdns_tools" $COMPLETION_FILE; then
+		return
+	fi
+	if [[ $ENABLE_CJDNS != "yes" ]]; then
+		return
+	fi
+	if [ ! -d /etc/cjdns ]; then
+		mesh_cjdns
+	fi
+
+	function_check select_go_version
+	select_go_version
+
+	apt-get -y install golang mercurial
+	if [ ! -f ~/.bashrc ]; then
+		touch ~/.bashrc
+	fi
+
+	if [ ! -d /home/git ]; then
+		# add a gogs user account
+		adduser --disabled-login --gecos 'Gogs' git
+
+		# install Go
+		if ! grep -q "export GOPATH=" ~/.bashrc; then
+			echo "export GOPATH=$GOPATH" >> ~/.bashrc
+		fi
+		systemctl set-environment GOPATH=$GOPATH
+		if ! grep -q "systemctl set-environment GOPATH=" ~/.bashrc; then
+			echo "systemctl set-environment GOPATH=$GOPATH" >> ~/.bashrc
+		fi
+		if [ ! -d $GOPATH ]; then
+			mkdir -p $GOPATH
+		fi
+	fi
+
+	if ! grep -q "export GOPATH=" ~/.bashrc; then
+		echo "export GOPATH=$GOPATH" >> ~/.bashrc
+	fi
+	expected_go_path='export PATH=$PATH:'${GOPATH}'/bin'
+	export PATH=$PATH:${GOPATH}/bin
+	if ! grep -q "$expected_go_path" ~/.bashrc; then
+		echo "$expected_go_path" >> ~/.bashrc
+	fi
+	export PATH=$PATH:$GOPATH/bin
+	CJDCMD_REPO2=$(echo "$CJDCMD_REPO" | sed 's|https://||g')
+	go get $CJDCMD_REPO2
+	if [ ! -f $GOPATH/bin/cjdcmd ]; then
+		echo $'cjdcmd was not compiled. Check your golang installation'
+		exit 7439
+	fi
+	cp $GOPATH/bin/cjdcmd /usr/bin
+
+	# initialise from the cjdns config
+	/usr/bin/cjdcmd cjdnsadmin -file /etc/cjdns/cjdroute.conf
+
+	echo 'mesh_cjdns_tools' >> $COMPLETION_FILE
 }
 
 # NOTE: deliberately no exit 0