567 lines
18 KiB
Bash
Executable File
567 lines
18 KiB
Bash
Executable File
#!/bin/bash
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#
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# .---. . .
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# | | |
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# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
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# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
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# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
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#
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# Freedom in the Cloud
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#
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# Used to enable or disable batman mesh protocol on wlanX
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#
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# License
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# =======
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#
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# Copyright (C) 2015-2017 Bob Mottram <bob@freedombone.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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PROJECT_NAME='freedombone'
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COMPLETION_FILE=/root/${PROJECT_NAME}-completed.txt
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# hotspot passphrase must be 5 characters or longer
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HOTSPOT_PASSPHRASE="${PROJECT_NAME}"
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source /usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-wifi
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if [[ $1 == "start" ]]; then
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# install avahi
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sed -i "s|#host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|use-ipv4=.*|use-ipv4=yes|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|use-ipv6=.*|use-ipv6=no|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|#disallow-other-stacks=.*|disallow-other-stacks=yes|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|hosts:.*|hosts: files mdns4_minimal dns mdns4 mdns|g" /etc/nsswitch.conf
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fi
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# Mesh definition
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WIFI_SSID='mesh'
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if [ -f $COMPLETION_FILE ]; then
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if grep -q "WIFI_SSID:" $COMPLETION_FILE; then
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WIFI_SSID=$(cat $COMPLETION_FILE | grep "WIFI_SSID:" | awk -F ':' '{print $2}')
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fi
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sed -i "s|WIFI_SSID:.*|WIFI_SSID:${WIFI_SSID}|g" $COMPLETION_FILE
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fi
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CELLID='any'
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CHANNEL=2
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HOTSPOT_CHANNEL=6
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if [ -f $COMPLETION_FILE ]; then
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if grep -q "Wifi channel:" $COMPLETION_FILE; then
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CHANNEL=$(cat $COMPLETION_FILE | grep "Wifi channel:" | awk -F ':' '{print $2}')
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fi
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sed -i "s|Wifi channel:.*|Wifi channel:${CHANNEL}|g" $COMPLETION_FILE
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fi
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ZERONET_PORT=15441
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IPFS_PORT=4001
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TOX_PORT=33445
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TRACKER_PORT=6969
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LIBREVAULT_PORT=42345
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TAHOELAFS_PORT=50213
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# Ethernet bridge definition (bridged to bat0)
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BRIDGE=br-mesh
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BRIDGE_HOTSPOT=br-hotspot
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IFACE=
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IFACE_SECONDARY=
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EIFACE=eth0
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WLAN_ADAPTORS=$(count_wlan)
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if [ $WLAN_ADAPTORS -eq 0 ]; then
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echo $'No wlan adaptors found'
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exit 0
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fi
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update_wifi_adaptors
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if [ ! $IFACE ]; then
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echo $'No wlan adaptor'
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exit 0
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fi
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if [ -e /etc/default/batctl ]; then
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. /etc/default/batctl
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fi
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function get_ipv4_wlan {
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echo $(ip -o -f inet addr show dev "$IFACE" | awk '{print $4}' | awk 'END {print}' | awk -F '/' '{print $1}')
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}
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function mesh_hotspot_ip_address {
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echo $(ip -o -f inet addr show dev "$BRIDGE" | awk '{print $4}' | awk 'END {print}' | awk -F '/' '{print $1}')
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}
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function global_rate_limit {
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if ! grep -q "tcp_challenge_ack_limit" /etc/sysctl.conf; then
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echo 'net.ipv4.tcp_challenge_ack_limit = 999999999' >> /etc/sysctl.conf
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else
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sed -i 's|net.ipv4.tcp_challenge_ack_limit.*|net.ipv4.tcp_challenge_ack_limit = 999999999|g' /etc/sysctl.conf
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fi
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sysctl -p -q
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}
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function status {
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batctl o
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}
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function stop {
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if [ -z "$IFACE" ]; then
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echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
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return
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fi
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if [ "$EIFACE" ]; then
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brctl delif $BRIDGE bat0
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ifconfig $BRIDGE down || true
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ethernet_connected=$(cat /sys/class/net/$EIFACE/carrier)
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if [[ "$ethernet_connected" != "0" ]]; then
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systemctl stop hostapd
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brctl delif $BRIDGE $EIFACE
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ifconfig $EIFACE down -promisc
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fi
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brctl delbr $BRIDGE
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fi
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avahi-autoipd -k $BRIDGE
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avahi-autoipd -k $IFACE
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ifconfig bat0 down -promisc
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batctl if del $IFACE
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ifconfig $IFACE mtu 1500
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ifconfig $IFACE down
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iwconfig $IFACE mode managed
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if [ $IFACE_SECONDARY ]; then
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systemctl stop hostapd
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systemctl disable hostapd
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batctl if del $IFACE_SECONDARY
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ifconfig $IFACE_SECONDARY mtu 1500
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ifconfig $IFACE_SECONDARY down
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iwconfig $IFACE_SECONDARY mode managed
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fi
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rmmod batman-adv
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iptables -D INPUT -p tcp --dport $TRACKER_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $TRACKER_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport 80 -j ACCEPT
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iptables -D INPUT -p udp --dport 80 -j ACCEPT
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iptables -D INPUT -p tcp --dport 548 -j ACCEPT
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iptables -D INPUT -p udp --dport 548 -j ACCEPT
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iptables -D INPUT -p tcp --dport 5353 -j ACCEPT
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iptables -D INPUT -p udp --dport 5353 -j ACCEPT
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iptables -D INPUT -p tcp --dport 5354 -j ACCEPT
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iptables -D INPUT -p udp --dport 5354 -j ACCEPT
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iptables -D INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $IPFS_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $TOX_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $TOX_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $TAHOELAFS_PORT -j ACCEPT
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# SSB/Scuttlebot/Patchwork
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iptables -D INPUT -p udp --dport 8008 -j ACCEPT
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iptables -D INPUT -p tcp --dport 8008 -j ACCEPT
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iptables -D INPUT -p udp --dport 8010 -j ACCEPT
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iptables -D INPUT -p tcp --dport 8010 -j ACCEPT
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# vpn over the internet
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iptables -D INPUT -p tcp --dport 653 -j ACCEPT
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iptables -D INPUT -p udp --dport 653 -j ACCEPT
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iptables -D INPUT -i ${EIFACE} -m state --state NEW -p tcp --dport 1194 -j ACCEPT
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iptables -D INPUT -i tun+ -j ACCEPT
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iptables -D FORWARD -i tun+ -j ACCEPT
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iptables -D FORWARD -i tun+ -o ${EIFACE} -m state --state RELATED,ESTABLISHED -j ACCEPT
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iptables -D FORWARD -i ${EIFACE} -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT
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iptables -t nat -D POSTROUTING -s 10.8.0.0/24 -o ${EIFACE} -j MASQUERADE
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iptables -D OUTPUT -o tun+ -j ACCEPT
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echo 0 > /proc/sys/net/ipv4/ip_forward
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sed -i 's|net.ipv4.ip_forward=.*|net.ipv4.ip_forward=0|g' /etc/sysctl.conf
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systemctl restart network-manager
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}
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function verify {
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tempfile="$(mktemp)"
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batctl o > $tempfile
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if grep -q "disabled" $tempfile; then
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echo $'B.A.T.M.A.N. not enabled'
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rm $tempfile
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stop
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exit 726835
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fi
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echo $'B.A.T.M.A.N. is running'
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rm $tempfile
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}
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function assign_peer_address {
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for i in {1..6}; do
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number=$RANDOM
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let "number %= 255"
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octet=$(echo "obase=16;$number" | bc)
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if [ ${#octet} -lt 2 ]; then
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octet="0${octet}"
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fi
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if [ $i -gt 1 ]; then
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echo -n ":"
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fi
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echo -n "${octet}"
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done
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}
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function add_wifi_interface {
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ifname=$1
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ifssid=$WIFI_SSID
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if [ $2 ]; then
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ifssid=$2
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fi
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ifmode=ad-hoc
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if [ $3 ]; then
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ifmode=$3
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fi
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ifchannel=$CHANNEL
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if [ $4 ]; then
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ifchannel=$4
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fi
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ifconfig $ifname down
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ifconfig $ifname mtu 1532
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peermac=$(assign_peer_address)
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if [ ! $peermac ]; then
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echo $"Unable to obtain MAC address for $peermac on $ifname"
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return
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fi
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ifconfig $ifname hw ether $peermac
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echo $"$ifname assigned MAC address $peermac"
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iwconfig $ifname enc off
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iwconfig $ifname mode $ifmode essid $ifssid channel $ifchannel
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batctl if add $ifname
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ifconfig $ifname up
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}
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function mesh_create_app_downloads_page {
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if [ ! -d /root/$PROJECT_NAME/image_build/mesh_apps ]; then
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return
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fi
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if [ ! -d /var/www/html ]; then
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return
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fi
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# Don't go straight to cryptpad when navigating to the peer's IP address
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if [ -L /etc/nginx/sites-enabled/cryptpad ]; then
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rm /etc/nginx/sites-enabled/cryptpad
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ln -s /etc/nginx/sites-available/default /etc/nginx/sites-enabled/default
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if [ -d /etc/cryptpad ]; then
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systemctl stop cryptpad
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systemctl disable cryptpad
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fi
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systemctl restart nginx
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fi
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# Don't show the cryptpad icon on the desktop
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if [ -f /home/fbone/Desktop/cryptpad.desktop ]; then
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mv /home/fbone/Desktop/cryptpad.desktop /home/fbone/.cryptpad.desktop
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fi
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cp /root/$PROJECT_NAME/website/EN/meshindex.html /var/www/html/index.html
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if [ ! -f /var/www/html/ssb.apk ]; then
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cp /root/$PROJECT_NAME/image_build/mesh_apps/ssb.apk /var/www/html/ssb.apk
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fi
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if [ ! -f /var/www/html/trifa.apk ]; then
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cp /root/$PROJECT_NAME/image_build/mesh_apps/trifa.apk /var/www/html/trifa.apk
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fi
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if [ ! -d /var/www/html/images ]; then
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mkdir /var/www/html/images
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fi
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if [ ! -f /var/www/html/images/logo.png ]; then
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cp /root/$PROJECT_NAME/img/logo.png /var/www/html/images/logo.png
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fi
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if [ ! -f /var/www/html/images/ssb.png ]; then
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cp /root/$PROJECT_NAME/img/icon_patchwork.png /var/www/html/images/ssb.png
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fi
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if [ ! -f /var/www/html/freedombone.css ]; then
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cp /root/$PROJECT_NAME/website/freedombone.css /var/www/html/freedombone.css
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fi
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chown -R www-data:www-data /var/www/html/*
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}
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function start {
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if [ -z "$IFACE" ] ; then
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echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
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exit 723657
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fi
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echo "info: enabling batman-adv mesh network $WIFI_SSID on $IFACE"
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systemctl stop network-manager
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sleep 5
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# remove an avahi service which isn't used
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if [ -f /etc/avahi/services/udisks.service ]; then
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sudo rm /etc/avahi/services/udisks.service
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fi
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global_rate_limit
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# Might have to re-enable wifi
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rfkill unblock $(rfkill list|awk -F: "/phy/ {print $1}") || true
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secondary_wifi_available=
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if [ $IFACE_SECONDARY ]; then
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if [[ $IFACE != $IFACE_SECONDARY ]]; then
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if [ -d /etc/hostapd ]; then
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if [ ${#HOTSPOT_PASSPHRASE} -gt 4 ]; then
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secondary_wifi_available=1
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else
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echo $'Hotspot passphrase is too short'
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fi
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fi
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fi
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fi
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modprobe batman-adv
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add_wifi_interface $IFACE $WIFI_SSID ad-hoc $CHANNEL
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avahi-autoipd --force-bind --daemonize --wait $IFACE
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# NOTE: Don't connect the secondary wifi device. hostapd will handle that by itself
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ifconfig bat0 up promisc
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brctl addbr $BRIDGE
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brctl addif $BRIDGE bat0
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ifconfig bat0 0.0.0.0
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if [ "$EIFACE" ] ; then
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ethernet_connected=$(cat /sys/class/net/$EIFACE/carrier)
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if [[ "$ethernet_connected" != "0" ]]; then
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echo $'Trying ethernet bridge to the internet'
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brctl addif $BRIDGE $EIFACE
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ifconfig $EIFACE 0.0.0.0
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ifconfig $EIFACE up promisc
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echo $'End of ethernet bridge'
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else
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echo $"$EIFACE is not connected"
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fi
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fi
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ifconfig $BRIDGE up
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dhclient $BRIDGE
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if [ $secondary_wifi_available ]; then
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sed -i 's|#DAEMON_CONF=.*|DAEMON_CONF="/etc/hostapd/hostapd.conf"|g' /etc/default/hostapd
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echo "interface=${IFACE_SECONDARY}" > /etc/hostapd/hostapd.conf
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echo "bridge=${BRIDGE}" >> /etc/hostapd/hostapd.conf
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echo 'driver=nl80211' >> /etc/hostapd/hostapd.conf
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echo "country_code=UK" >> /etc/hostapd/hostapd.conf
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echo "ssid=${WIFI_SSID}-$(mesh_hotspot_ip_address)" >> /etc/hostapd/hostapd.conf
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echo 'hw_mode=g' >> /etc/hostapd/hostapd.conf
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echo "channel=${HOTSPOT_CHANNEL}" >> /etc/hostapd/hostapd.conf
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echo 'wpa=2' >> /etc/hostapd/hostapd.conf
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echo "wpa_passphrase=$HOTSPOT_PASSPHRASE" >> /etc/hostapd/hostapd.conf
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echo 'wpa_key_mgmt=WPA-PSK' >> /etc/hostapd/hostapd.conf
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echo 'wpa_pairwise=TKIP' >> /etc/hostapd/hostapd.conf
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echo 'rsn_pairwise=CCMP' >> /etc/hostapd/hostapd.conf
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echo 'auth_algs=1' >> /etc/hostapd/hostapd.conf
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echo 'macaddr_acl=0' >> /etc/hostapd/hostapd.conf
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systemctl enable hostapd
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systemctl restart hostapd
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mesh_create_app_downloads_page
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else
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# Recreate the cryptpad symlink
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if [ -f /etc/nginx/sites-available/cryptpad ]; then
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if [ -L /etc/nginx/sites-enabled/cryptpad ]; then
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rm /etc/nginx/sites-enabled/default
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fi
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systemctl enable cryptpad
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systemctl start cryptpad
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if [ ! -L /etc/nginx/sites-enabled/cryptpad ]; then
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ln -s /etc/nginx/sites-available/cryptpad /etc/nginx/sites-enabled/cryptpad
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systemctl restart nginx
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fi
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fi
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if [ -f /home/fbone/.cryptpad.desktop ]; then
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mv /home/fbone/.cryptpad.desktop /home/fbone/Desktop/cryptpad.desktop
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fi
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fi
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iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
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iptables -A OUTPUT -p icmp --icmp-type echo-reply -j ACCEPT
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iptables -A INPUT -p tcp --dport $TRACKER_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $TRACKER_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport 80 -j ACCEPT
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iptables -A INPUT -p udp --dport 80 -j ACCEPT
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iptables -A INPUT -p tcp --dport 548 -j ACCEPT
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iptables -A INPUT -p udp --dport 548 -j ACCEPT
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iptables -A INPUT -p tcp --dport 5353 -j ACCEPT
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iptables -A INPUT -p udp --dport 5353 -j ACCEPT
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iptables -A INPUT -p tcp --dport 5354 -j ACCEPT
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iptables -A INPUT -p udp --dport 5354 -j ACCEPT
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iptables -A INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $TOX_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $TAHOELAFS_PORT -j ACCEPT
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# SSB/Scuttlebot/Patchwork
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iptables -A INPUT -p udp --dport 8008 -j ACCEPT
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iptables -A INPUT -p tcp --dport 8008 -j ACCEPT
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iptables -A INPUT -p udp --dport 8010 -j ACCEPT
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iptables -A INPUT -p tcp --dport 8010 -j ACCEPT
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# vpn over the internet
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iptables -A INPUT -p tcp --dport 653 -j ACCEPT
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iptables -A INPUT -p udp --dport 653 -j ACCEPT
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iptables -A INPUT -i ${EIFACE} -m state --state NEW -p tcp --dport 1194 -j ACCEPT
|
|
iptables -A INPUT -i tun+ -j ACCEPT
|
|
iptables -A FORWARD -i tun+ -j ACCEPT
|
|
iptables -A FORWARD -i tun+ -o ${EIFACE} -m state --state RELATED,ESTABLISHED -j ACCEPT
|
|
iptables -A FORWARD -i ${EIFACE} -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT
|
|
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o ${EIFACE} -j MASQUERADE
|
|
iptables -A OUTPUT -o tun+ -j ACCEPT
|
|
|
|
echo 1 > /proc/sys/net/ipv4/ip_forward
|
|
sed -i 's|# net.ipv4.ip_forward|net.ipv4.ip_forward|g' /etc/sysctl.conf
|
|
sed -i 's|#net.ipv4.ip_forward|net.ipv4.ip_forward|g' /etc/sysctl.conf
|
|
sed -i 's|net.ipv4.ip_forward.*|net.ipv4.ip_forward=1|g' /etc/sysctl.conf
|
|
|
|
systemctl restart avahi-daemon
|
|
|
|
if [ -f /etc/scuttlebot/.ssb/config ]; then
|
|
ethernet_connected=$(cat /sys/class/net/eth0/carrier)
|
|
if [[ "$ethernet_connected" != "0" ]]; then
|
|
sed -i "s|\"host\": .*|\"host\": \"$(get_ipv4_wlan)\",|g" /etc/scuttlebot/.ssb/config
|
|
systemctl restart scuttlebot
|
|
else
|
|
systemctl stop scuttlebot
|
|
fi
|
|
fi
|
|
|
|
# if we have an ethernet connection to an internet router then create
|
|
# an onion address for this peer
|
|
if [[ "$ethernet_connected" != "0" ]]; then
|
|
systemctl enable tor
|
|
systemctl start tor
|
|
HIDDEN_SERVICE_PATH=/var/lib/tor/hidden_service_
|
|
if [ ! -f ${HIDDEN_SERVICE_PATH}mesh/hostname ]; then
|
|
echo "HiddenServiceDir ${HIDDEN_SERVICE_PATH}mesh/" >> /etc/tor/torrc
|
|
echo "HiddenServicePort 653 127.0.0.1:653" >> /etc/tor/torrc
|
|
systemctl restart tor
|
|
fi
|
|
else
|
|
systemctl stop tor
|
|
systemctl disable tor
|
|
fi
|
|
|
|
verify
|
|
}
|
|
|
|
function monitor {
|
|
if [ -z "$IFACE" ] ; then
|
|
echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
|
|
exit 723657
|
|
fi
|
|
|
|
clear
|
|
echo ''
|
|
echo $'*** Stopping network ***'
|
|
echo ''
|
|
|
|
stop
|
|
|
|
echo "info: monitoring mesh network $WIFI_SSID on $IFACE"
|
|
|
|
systemctl stop network-manager
|
|
sleep 5
|
|
|
|
clear
|
|
echo ''
|
|
echo $'*** Setting firewall rate limit ***'
|
|
echo ''
|
|
|
|
global_rate_limit
|
|
|
|
clear
|
|
echo ''
|
|
echo $'*** Enabling wifi adaptor in monitor mode ***'
|
|
echo ''
|
|
|
|
# Might have to re-enable wifi
|
|
rfkill unblock $(rfkill list|awk -F: "/phy/ {print $1}") || true
|
|
|
|
ifconfig $IFACE down
|
|
ifconfig $IFACE mtu 1532
|
|
ifconfig $IFACE hw ether $(assign_peer_address)
|
|
iwconfig $IFACE enc off
|
|
iwconfig $IFACE mode monitor channel $CHANNEL
|
|
sleep 1
|
|
iwconfig $IFACE ap $CELLID
|
|
|
|
modprobe batman-adv
|
|
batctl if add $IFACE
|
|
ifconfig $IFACE up
|
|
|
|
horst -i $IFACE
|
|
|
|
clear
|
|
echo ''
|
|
echo $'*** Restarting the network daemon. This may take a while. ***'
|
|
echo ''
|
|
|
|
start
|
|
}
|
|
|
|
if ! grep -q "$IFACE" /proc/net/dev; then
|
|
echo 'Interface $IFACE was not found'
|
|
stop
|
|
exit 1
|
|
fi
|
|
|
|
case "$1" in
|
|
start|stop|status|monitor)
|
|
$1
|
|
;;
|
|
restart)
|
|
clear
|
|
echo ''
|
|
echo $'*** Stopping mesh network connection ***'
|
|
echo ''
|
|
stop
|
|
sleep 10
|
|
clear
|
|
echo ''
|
|
echo $'*** Starting mesh network connection ***'
|
|
echo ''
|
|
start
|
|
;;
|
|
ping)
|
|
batctl ping $2
|
|
;;
|
|
data)
|
|
watch -n1 "batctl s | grep mgmt | grep bytes"
|
|
;;
|
|
ls|list)
|
|
avahi-browse -atl
|
|
;;
|
|
*)
|
|
echo "error: invalid parameter $1"
|
|
echo 'usage: $0 {start|stop|restart|status|ping|ls|list}'
|
|
exit 2
|
|
;;
|
|
esac
|
|
exit 0
|