path: root/inventory/host_vars/ele-router.yml

---
ssh_users_root:
  - equinox
  - datacop

network_mgmt_zone: "{{ network_zones.mgmt }}"


wireguard_keys:
  gwhetzner:
    pub: "fqaKDJbSj6V0H98d78d/lnFLolefgp6zDPH9bN4+zUY="
    priv: "{{ vault_wireguard_priv_keys.gwhetzner }}"

wireguard_gateway_tunnels:
  wg-emc:
    priv_key: "{{ wireguard_keys.gwhetzner.priv }}"
    addresses:
    - 192.168.254.6/30
    default_gateway:
      inner: 192.168.254.5
    peers:
    - pub_key: "{{ hostvars['ele-gwhetzner'].wireguard_keys.emc.pub }}"
      endpoint:
        host: 178.63.180.138 # TODO: fix this variable "{{ hostvars['ele-gwhetzner'].external_ip }}"
        port: 51821
      keepalive_interval: 15
      allowed_ips:
      - 0.0.0.0/0

openwrt_network_external:
  - name: interface 'wanmur'
    options:
      device: 'eth5'
      proto: static
      ipaddr: "{{ network_zones.murat_transfer.prefix | ipaddr(network_zones.murat_transfer.offsets[inventory_hostname]) | ipaddr('address') }}"
      netmask: "{{ network_zones.murat_transfer.prefix | ipaddr('netmask') }}"
      accept_ra: 0

  - name: rule
    options:
      priority: 41050
      src: "{{ network_zones.murat_transfer.prefix | ipaddr(network_zones.murat_transfer.offsets[inventory_hostname]) | ipaddr('address') }}/32"
      lookup: 105

  - name: rule
    options:
      priority: 41051
      mark: 105
      lookup: 105

  - name: route 'murdefault'
    options:
      interface: 'wanmur'
      table: 105
      target: '0.0.0.0/0'
      gateway: "{{ network_zones.murat_transfer.prefix | ipaddr(network_zones.murat_transfer.offsets['ele-mur']) | ipaddr('address') }}"


  - name: interface 'wanlte'
    options:
      device: 'eth4'
      proto: static
      ipaddr: "{{ network_zones.datacop_lte.prefix | ipaddr(network_zones.datacop_lte.offsets[inventory_hostname]) | ipaddr('address') }}"
      netmask: "{{ network_zones.datacop_lte.prefix | ipaddr('netmask') }}"
      accept_ra: 0

  - name: rule
    options:
      priority: 41040
      src: "{{ network_zones.datacop_lte.prefix | ipaddr(network_zones.datacop_lte.offsets[inventory_hostname]) | ipaddr('address') }}/32"
      lookup: 104

  - name: rule
    options:
      priority: 41041
      mark: 104
      lookup: 104

  - name: route 'ltedefault'
    options:
      interface: 'wanlte'
      table: 104
      target: '0.0.0.0/0'
      gateway: "{{ network_zones.datacop_lte.gateway }}"

  - name: rule
    options:
      priority: 50000
      lookup: 105


network_internal_zone_names__wanmur:
  - lan
  - guest
  - mixer
  - infoscreens
network_internal_zone_names__wanlte: []
network_internal_zone_names__wgemc:
  - emc

network_internal_zone_names: "{{ network_internal_zone_names__wanmur + network_internal_zone_names__wanlte + network_internal_zone_names__wgemc }}"
openwrt_network_internal: "{{ openwrt_network_internal_yaml | from_yaml }}"
openwrt_network_internal_yaml: |
  {% for zone_name in network_internal_zone_names %}
  - name: "interface '{{ zone_name }}'"
    options:
      device: "eth0.{{ network_zones[zone_name].vlan }}"
      proto: static
      ipaddr: "{{ network_zones[zone_name].gateway }}"
      netmask: "{{ network_zones[zone_name].prefix | ipaddr('netmask') }}"
      accept_ra: 0
  {% endfor %}


openwrt_network_base:
  - name: globals 'globals'
    options:
      ula_prefix: "fc{{ '%02x:%04x:%04x' | format((255 | random(seed=inventory_hostname + '0')), (65535 | random(seed=inventory_hostname + '1')), (65535 | random(seed=inventory_hostname + '2'))) }}::/48"

  - name: interface 'loopback'
    options:
      device: lo
      proto: static
      ipaddr: 127.0.0.1
      netmask: 255.0.0.0

  - name: interface 'mgmt'
    options:
      device: "eth0.{{ network_mgmt_zone.vlan }}"
      proto: static
      ipaddr: "{{ network_mgmt_zone.prefix | ipaddr(network_mgmt_zone.offsets[inventory_hostname]) | ipaddr('address') }}"
      netmask: "{{ network_mgmt_zone.prefix | ipaddr('netmask') }}"
      accept_ra: 0



openwrt_dhcp_external:
  - name: dhcp 'wanmur'
    options:
      interface: 'wanmur'
      ignore: '1'

  - name: dhcp 'wanlte'
    options:
      interface: 'wanlte'
      ignore: '1'


openwrt_dhcp_internal: "{{ openwrt_dhcp_internal_yaml | from_yaml }}"
openwrt_dhcp_internal_yaml: |
  {% for zone_name in network_internal_zone_names %}
  - name: "dhcp '{{ zone_name }}'"
    options:
      interface: "{{ zone_name }}"
  {%  if 'dhcp' in network_zones[zone_name] %}
      start: {{ network_zones[zone_name].dhcp.start }}
      limit: {{ network_zones[zone_name].dhcp.limit }}
      leasetime: {{ network_zones[zone_name].dhcp.leasetime | default('12h') }}
      dhcpv6: 'disabled'
      ra: 'disabled'
  {%  else %}
      ignore: '1'
  {%  endif %}
  {% endfor %}


openwrt_dhcp_base:
  - name: dnsmasq
    options:
      domainneeded: '1'
      boguspriv: '0'
      filterwin2k: '0'
      localise_queries: '1'
      rebind_protection: '0'
      rebind_localhost: '1'
      local: '/lan/'
      domain: 'lan'
      expandhosts: '1'
      nonegcache: '0'
      authoritative: '1'
      readethers: '1'
      leasefile: '/tmp/dhcp.leases'
      resolvfile: '/tmp/resolv.conf.auto'
      localservice: '1'
      server:
      - 1.1.1.1

  - name: odhcpd 'odhcpd'
    options:
      maindhcp: '0'
      leasefile: '/tmp/hosts/odhcpd'
      leasetrigger: '/usr/sbin/odhcpd-update'

  - name: dhcp 'mgmt'
    options:
      interface: 'mgmt'
      ignore: '1'


openwrt_arch: x86
openwrt_target: 64
openwrt_profile: generic
openwrt_output_image_suffixes:
  - "{{ openwrt_profile }}-ext4-combined.img.gz"

openwrt_packages_remove:
  - ppp
  - ppp-mod-pppoe
  - firewall
  - odhcpd-ipv6only
openwrt_packages_add:
  - kmod-ipt-nat
  - kmod-ipt-conntrack
  - haveged
  - htop
  - ip
  - less
  - nano
  - tcpdump-mini
  - iperf
  - iperf3
  - mtr
  - iptraf-ng
  - qos-scripts
  - wireguard
  - prometheus-node-exporter-lua
  - prometheus-node-exporter-lua-nat_traffic
  - prometheus-node-exporter-lua-netstat
  - prometheus-node-exporter-lua-openwrt


openwrt_mixin:
  /etc/dropbear/authorized_keys:
    content: "{{ ssh_keys_root | join('\n') }}\n"

  /etc/htoprc:
    file: "{{ global_files_dir }}/common/htoprc"

  /etc/wireguard/wg-emc.priv:
    content: "{{ wireguard_gateway_tunnels['wg-emc'].priv_key }}\n"
    mode: "0600"

  /etc/rc.d/S21network-wgemc:
    link: "../init.d/network-wgemc"

  /etc/rc.d/K91network-wgemc:
    link: "../init.d/network-wgemc"

  /etc/init.d/network-wgemc:
    mode: "0755"
    content: |
      #!/bin/sh /etc/rc.common

      START=21
      STOP=91

      start() {
        ip link add dev wg-emc type wireguard
        wg set wg-emc fwmark 105 private-key /etc/wireguard/wg-emc.priv

      {% for peer in wireguard_gateway_tunnels['wg-emc'].peers %}
        wg set wg-emc peer {{ peer.pub_key }} endpoint {{ peer.endpoint.host }}:{{ peer.endpoint.port }} persistent-keepalive {{ peer.keepalive_interval }} allowed-ips {{ peer.allowed_ips | join(',') }}
      {% endfor %}

      {% for addr in wireguard_gateway_tunnels['wg-emc'].addresses %}
        ip addr add dev wg-emc {{ addr }}
      {% endfor %}
        ip link set up dev wg-emc

        ip route add default via {{ wireguard_gateway_tunnels['wg-emc'].default_gateway.inner }} table 200 proto static
      }

      stop() {
        ip link del dev wg-emc
      }

  /etc/rc.d/S22network-fw:
    link: "../init.d/network-fw"

  /etc/rc.d/K92network-fw:
    link: "../init.d/network-fw"

  /etc/init.d/network-fw:
    mode: "0755"
    content: |
      #!/bin/sh /etc/rc.common

      START=22
      STOP=91

      start() {
        ### management
        MGMT_IF=$(uci get network.mgmt.device)
        MGMT_IPADDR=$(uci get network.mgmt.ipaddr)
        MGMT_NETMASK=$(uci get network.mgmt.netmask)
        iptables -A INPUT -i lo -d 127.0.0.0/8 -j ACCEPT
        iptables -A INPUT -i "$MGMT_IF" -d "$MGMT_IPADDR" -s "$MGMT_IPADDR/$MGMT_NETMASK" -j ACCEPT


        ### external zones
        # mur
        iptables -A INPUT -i "eth5" -p icmp -j ACCEPT
        iptables -A INPUT -i "eth5" -p tcp --dport {{ ansible_port }} -j ACCEPT
        iptables -A INPUT -i "eth5" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT

        # LTE
        iptables -A INPUT -i "eth4" -p icmp -j ACCEPT
        iptables -A INPUT -i "eth4" -p tcp --dport {{ ansible_port }} -j ACCEPT
        iptables -A INPUT -i "eth4" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT

        # Wireguard EMC
        iptables -A INPUT -i "wg-emc" -p icmp -j ACCEPT
        iptables -A INPUT -i "wg-emc" -p tcp --dport {{ ansible_port }} -j ACCEPT
        iptables -A INPUT -i "wg-emc" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
        iptables -A FORWARD -o "wg-emc" -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu


        ### internal zones
      {% for zone_name in network_internal_zone_names %}
        # {{ zone_name }}
      {%   if 'dhcp' in network_zones[zone_name] %}
        iptables -A INPUT -i "eth0.{{ network_zones[zone_name].vlan }}" -p udp --dport 67 --sport 68 -j ACCEPT
      {%   endif  %}
      {%   if 'dhcp' in network_zones[zone_name] or network_zones[zone_name].gateway in network_zones[zone_name].dns %}
        iptables -A INPUT -i "eth0.{{ network_zones[zone_name].vlan }}" -p udp --dport 53 -d "{{ network_zones[zone_name].gateway }}" -s "{{ network_zones[zone_name].prefix }}" -j ACCEPT
        iptables -A INPUT -i "eth0.{{ network_zones[zone_name].vlan }}" -p tcp --dport 53 -d "{{ network_zones[zone_name].gateway }}" -s "{{ network_zones[zone_name].prefix }}" -j ACCEPT
      {%   endif  %}
        iptables -A INPUT -i "eth0.{{ network_zones[zone_name].vlan }}" -p icmp -d "{{ network_zones[zone_name].gateway }}" -s "{{ network_zones[zone_name].prefix }}" -j ACCEPT
        iptables -A INPUT -i "eth0.{{ network_zones[zone_name].vlan }}" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT

      {%   if zone_name in network_internal_zone_names__wanmur %}
      {%     set ext_interface = "eth5" %}
      {%     set rt_table = "105" %}
      {%   elif zone_name in network_internal_zone_names__wanlte %}
      {%     set ext_interface = "eth4" %}
      {%     set rt_table = "104" %}
      {%   elif zone_name in network_internal_zone_names__wgemc %}
      {%     set ext_interface = "wg-emc" %}
      {%     set rt_table = "200" %}
      {%   endif %}
        iptables -A FORWARD -i "eth0.{{ network_zones[zone_name].vlan }}" -o "{{ ext_interface }}" -s "{{ network_zones[zone_name].prefix }}" -j ACCEPT
        iptables -A FORWARD -i "{{ ext_interface }}" -o "eth0.{{ network_zones[zone_name].vlan }}" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
        iptables -t nat -A POSTROUTING -o "{{ ext_interface }}" -s "{{ network_zones[zone_name].prefix }}" -j MASQUERADE
        ip rule add pref {{ loop.index + 33000 }} iif "eth0.{{ network_zones[zone_name].vlan }}" lookup {{ rt_table }}

      {% endfor %}

        ###
        iptables -P INPUT DROP
        iptables -P FORWARD DROP
      }

      stop() {
        iptables -P INPUT ACCEPT
        iptables -F INPUT
        iptables -P FORWARD ACCEPT
        iptables -F FORWARD
        iptables -t nat -F POSTROUTING
      {% for zone_name in network_internal_zone_names %}
        ip rule del pref {{ loop.index + 33000 }}
      {% endfor %}
      }


openwrt_uci:
  system:
    - name: system
      options:
        hostname: '{{ host_name }}'
        timezone: 'CET-1CEST,M3.5.0,M10.5.0/3'
        ttylogin: '0'
        log_size: '64'
        urandom_seed: '0'

    - name: timeserver 'ntp'
      options:
        enabled: '1'
        enable_server: '0'
        server:
          - '0.lede.pool.ntp.org'
          - '1.lede.pool.ntp.org'
          - '2.lede.pool.ntp.org'
          - '3.lede.pool.ntp.org'

  dropbear:
    - name: dropbear
      options:
        PasswordAuth: 'off'
        RootPasswordAuth: 'off'
        Port: '{{ ansible_port }}'

  prometheus-node-exporter-lua:
    - name: prometheus-node-exporter-lua 'main'
      options:
        listen_interface: 'mgmt'
        listen_ipv6: '0'
        listen_port: '9100'

  dhcp: "{{ openwrt_dhcp_base + openwrt_dhcp_internal + openwrt_dhcp_external }}"
  network: "{{ openwrt_network_base + openwrt_network_internal + openwrt_network_external }}"


prometheus_scrape_endpoint: "{{ network_mgmt_zone.prefix | ipaddr(network_mgmt_zone.offsets[inventory_hostname]) | ipaddr('address') }}:9100"
prometheus_exporters_default:
  - openwrt