ansible.fftdf.supernode/files/sn_startup.exit.sh.j2

#!/bin/sh
# Version 1.91

curl -X POST --data-urlencode 'payload={"text": "{{ sn_hostname }} is rebooted", "channel": "#technik", "username": "{{ sn_hostname }}", "icon_emoji": ":floppy_disk:"}' https://hooks.slack.com/services/{{ slack_token }}

# Activate IP forwarding
/sbin/sysctl -w net.ipv6.conf.all.forwarding=1
/sbin/sysctl -w net.ipv4.ip_forward=1

# restart when kernel panic
/sbin/sysctl kernel.panic=1

# Routing table 42
/bin/grep 42 /etc/iproute2/rt_tables || /bin/echo 42 ffrl >> /etc/iproute2/rt_tables

# Set table for traffice with mark 4
/bin/ip rule add fwmark 0x4 table 42
/bin/ip -6 rule add fwmark 0x4 table 42

# Set mark 4 to Freifunk traffic
/sbin/iptables -t mangle -A PREROUTING -s 10.0.0.0/8 ! -d 10.0.0.0/8 -j MARK --set-mark 4
/sbin/ip6tables -t mangle -A PREROUTING -s 2a03:2260:121::/64 ! -d 2a03:2260:121::/64 -j MARK --set-mark 4

# All from FF IPv4 via routing table 42
/bin/ip rule add from {{ sn_ffrl_IPv4 }}/32 lookup 42
/bin/ip -6 rule add from  2a03:2260:121::/64 lookup 42

# Allow MAC address spoofing
/sbin/sysctl net.ipv4.conf.bat0.rp_filter=0

# Create Tunneldigger Bridge
/sbin/brctl addbr br-nodes
/sbin/ip link set dev br-nodes up address 2E:9D:FA:A1:6B:0{{ sn_number }}
/sbin/ebtables -A FORWARD --logical-in br-nodes -j DROP
/usr/local/sbin/batctl if add br-nodes
/sbin/ip route add {{ snx_ffrl_IPv4 }}/32 via {{ snx_mesh_IPv4 }} table 42
/sbin/ip route add {{ snx_ffrl_IPv4 }}/32 via {{ snx_mesh_IPv4 }}

sleep 5

#Stop all Services - Started from keepalive.sh
/bin/systemctl stop radvd
/bin/systemctl stop tunneldigger
/bin/systemctl stop bird
/bin/systemctl stop bird6
exit 0