iiab/roles/network/tasks/detected_network.yml

- name: iiab_wan_device
  shell: grep IIAB_WAN_DEVICE /etc/iiab/iiab.env | awk -F "=" '{print $2}'
  when: iiab_stage|int > 4
  register: prior_gw

- name: Checking for old device gateway interface for device test
  set_fact:
      device_gw: "{{ prior_gw.stdout }}"
      device_gw2: "{{ prior_gw.stdout }}"
  when: iiab_stage|int > 4 and prior_gw is defined and prior_gw.stdout != ""

- name: Setting WAN if detected
  set_fact:
      iiab_wan_iface: "{{ discovered_wan_iface }}"
      device_gw: "{{ discovered_wan_iface }}"
  when: ansible_default_ipv4.gateway is defined

- name: Red Hat network detection (redhat)
  include_tasks: detected_redhat.yml
  when: is_redhat

- name: Setting dhcpcd_test results
  set_fact:
    dhcpcd_result: "{{ ansible_local.local_facts.dhcpcd }}"

- name: Setting systemd_networkd results
  set_fact:
    systemd_networkd_active: True
  when: 'ansible_local.local_facts.systemd_networkd == "enabled"'

- name: Setting network_manager results
  set_fact:
    network_manager_active: True
  when: 'ansible_local.local_facts.network_manager == "enabled"'

- name: Check /etc/network/interfaces for gateway
  shell: grep {{ device_gw }} /etc/network/interfaces | wc -l
  when: is_debuntu
  register: wan_file

- name: Setting wan_in_interfaces
  set_fact:
    wan_in_interfaces: True
  when: is_debuntu and wan_file.stdout|int >= 0

# WIRELESS -- if any wireless is detected as gateway, it becomes WAN
- name: Look for any wireless interfaces
  shell: "cat /proc/net/wireless | grep -v -e Inter -e face | awk -F: '{print $1}' "
  register: wireless_list1
  ignore_errors: True
  changed_when: False

- name: Set the discovered wireless, if found
  set_fact:
     wifi1: "{{ item|trim }}"
     discovered_wireless_iface: "{{ item|trim }}"
  when: item|trim != "" and item|trim != discovered_wan_iface
  with_items:
      - "{{ wireless_list1.stdout_lines }}"

# WIRELESS -- Sigh... Not all drivers update /proc/net/wireless correctly
- name: Look for any wireless interfaces (take 2)
  shell: "ls -la /sys/class/net/*/phy80211 | awk -F / '{print $5}'"
  register: wireless_list2
  ignore_errors: True
  changed_when: False

# Last device is used
- name: Set the discovered wireless, if found (take 2)
  set_fact:
     wifi2: "{{ item|trim }}"
     discovered_wireless_iface: "{{ item|trim }}"
  when: wireless_list2.stdout is defined
  with_items:
      - "{{ wireless_list2.stdout_lines }}"
#item|trim != discovered_wan_iface

- name: Count WiFi ifaces
  shell: "ls -la /sys/class/net/*/phy80211 | awk -F / '{print $5}' | wc -l"
  register: count_wifi_interfaces

# facts are apparently all stored as text, so do text comparisons from here on
- name: Remember number of WiFi devices
  set_fact:
      num_wifi_interfaces: "{{ count_wifi_interfaces.stdout|int }}"

# XO hack here ap_device would not be active therefore not set with
# wired as gw use ap_device to exclude eth0 from network calulations

- name: XO laptop override 2 WiFi on LAN
  set_fact:
      ap_device: "eth0"
  when: iiab_wan_iface != "eth0" and discovered_wireless_iface != "none" and xo_model == "XO-1.5"

- name: Exclude reserved WiFi adapter if defined - takes adapter name
  set_fact:
      ap_device: "{{ reserved_wifi }}"
  when: reserved_wifi is defined and discovered_wireless_iface != iiab_wan_iface and num_wifi_interfaces >= "2"

- name: Count LAN ifaces
  shell: ls /sys/class/net | grep -v  -e wwlan -e ppp -e lo -e br0 -e tun -e {{ device_gw }} -e {{ ap_device }} | wc -l
  register: num_lan_interfaces_result

- name: Calculate number of LAN interfaces including WiFi
  set_fact:
      num_lan_interfaces: "{{ num_lan_interfaces_result.stdout|int }}"

# LAN - pick non WAN's
- name: Create list of LAN (non WAN) ifaces
  shell: ls /sys/class/net | grep -v -e wwlan -e ppp -e lo -e br0 -e tun -e {{ device_gw }} -e {{ ap_device }}
  when: num_lan_interfaces != "0"
  register: lan_list_result

# If 2 interfaces found in gateway mode, with one wifi, declare other to be wan
#- name: In gateway mode with one wifi adapter, the other is WAN
#  set_fact:
#      iiab_wan_iface: "{{ discovered_lan_iface }}"
#      iiab_lan_iface: "{{ discovered_wireless_iface }}"
#      num_lan_interfaces: "1"
#  when: iiab_lan_enabled and iiab_wan_enabled and num_lan_interfaces == "2" and discovered_wireless_iface != "none" and iiab_wan_iface == "none"

# Select an adapter that is not WAN and not wireless
# if there is more than one the last one wins
- name: Set discovered_wired_iface fact if present
  set_fact:
      discovered_wired_iface: "{{ item|trim }}"
  when: lan_list_result.stdout_lines is defined and item|trim != discovered_wireless_iface
  with_items:
      - "{{ lan_list_result.stdout_lines }}"

- name: Set discovered_wireless_lan_iface fact if present
  set_fact:
       iiab_wireless_lan_iface: "{{ discovered_wireless_iface }}"
  when: discovered_wireless_iface is defined and discovered_wireless_iface != "none" and discovered_wireless_iface != iiab_wan_iface

- name: Set variable discovered_wired_lan_iface if present
  set_fact:
       iiab_wired_lan_iface: "{{ discovered_wired_iface }}"
  when: discovered_wired_iface is defined and discovered_wired_iface != "none" and discovered_wired_iface != iiab_wan_iface

#unused
#- name: Get a list of ifcfg files to delete
# moved to detected_redhat

# use value only if present
- name: 2 or more devices on the LAN - use bridging
  set_fact:
      iiab_lan_iface: br0
  when: num_lan_interfaces|int >= 2 and not is_rpi

- name: For Debian, always use bridging - except RPi
  set_fact:
      iiab_lan_iface: br0
  when: num_lan_interfaces|int >= 1 and is_debuntu and not is_rpi

- name: WiFi is on the LAN - use bridging - except RPi
  set_fact:
      iiab_lan_iface: br0
  when: iiab_wireless_lan_iface is defined and not nobridge is defined

- name: Setting wired LAN as only interface - RPi
  set_fact:
      iiab_lan_iface: "{{ iiab_wired_lan_iface }}"
  when: iiab_wired_lan_iface is defined and nobridge is defined

- name: Setting wireless LAN as only interface - RPi
  set_fact:
      iiab_lan_iface: "{{ iiab_wireless_lan_iface }}"
  when: iiab_wireless_lan_iface is defined and nobridge is defined

- name: In VM disable LAN - needs local_vars entry to activate
  set_fact:
      iiab_lan_iface: none
      no_net_restart: True
  when: is_VM is defined

# OK try old gw this is a best guess based on what's in
# /etc/sysconfig/iiab_wan_device's last state intended to
# provide a seed value to display in the GUI when no
# gateway is present but we had one.
- name: Has old gateway and no discovered gateway setting WAN
  set_fact:
    gui_wan_iface: "{{ device_gw }}"
  when: user_wan_iface == "auto" and device_gw != "none" and discovered_wan_iface == "none"

- name: Add location section to config file
  ini_file: dest='{{ iiab_config_file }}'
            section=detected_network
            option='{{ item.option }}'
            value='{{ item.value }}'
  with_items:
  - option: 'has_ifcfg_gw'
    value: '{{ has_ifcfg_gw }}'
  - option: 'prior_gateway_(device_gw2)'
    value: '{{ device_gw2 }}'
  - option: 'dhcpcd_result'
    value: '{{ dhcpcd_result }}'
  - option: 'network_manager_active'
    value: '{{ network_manager_active }}'
  - option: 'systemd_networkd_active'
    value: '{{ systemd_networkd_active }}'
  - option: 'wan_in_interfaces'
    value: '{{ wan_in_interfaces }}'
  - option: 'wireless_list_1(wifi1)'
    value: '{{ wifi1 }}'
  - option: 'wireless_list_2(wifi2)'
    value: '{{ wifi2 }}'
  - option: 'num_wifi_interfaces'
    value: '{{ num_wifi_interfaces }}'
  - option: 'discovered_wireless_iface'
    value: '{{ discovered_wireless_iface }}'
  - option: 'discovered_wired_iface'
    value: '{{ discovered_wired_iface }}'
#  - option: 'iiab_wireless_lan_iface'
#    value: '{{ iiab_wireless_lan_iface }}'
  - option: 'num_lan_interfaces'
    value: '{{ num_lan_interfaces }}'
  - option: 'gui_static_wan'
    value: '{{ gui_static_wan }}'
  - option: 'iiab_lan_iface'
    value: '{{ iiab_lan_iface }}'
  - option: 'iiab_wan_iface'
    value: '{{ iiab_wan_iface }}'