Module: Facter::Util::DHCPServers

Defined in:
lib/facter/util/dhcp_servers.rb

Class Method Summary collapse

Class Method Details

.device_dhcp_server(device) ⇒ Object 



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# File 'lib/facter/util/dhcp_servers.rb', line 26

def self.device_dhcp_server(device)
  if Facter::Core::Execution.which('nmcli')
    version = self.nmcli_version
    # If the version is >= 0.9.9, use show instead of list
    if version && version[0] > 0 || version[1] > 9 || (version[1] == 9 && version[2] >= 9)
      Facter::Core::Execution.exec("nmcli -f all d show #{device}").scan(/dhcp_server_identifier.*?(\d+\.\d+\.\d+\.\d+)$/).flatten.first
    else
      Facter::Core::Execution.exec("nmcli -f all d list iface #{device}").scan(/dhcp_server_identifier.*?(\d+\.\d+\.\d+\.\d+)$/).flatten.first
    end
  end
end

.devices ⇒ Object 



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# File 'lib/facter/util/dhcp_servers.rb', line 18

def self.devices
  if Facter::Core::Execution.which('nmcli')
    Facter::Core::Execution.exec("nmcli d").split("\n").select {|d| d =~ /\sconnected/i }.collect{ |line| line.split[0] }
  else
    []
  end
end

.gateway_device ⇒ Object 



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# File 'lib/facter/util/dhcp_servers.rb', line 4

def self.gateway_device
  interface = nil
  if routes = Facter::Util::FileRead.read('/proc/net/route')
    routes.each_line do |line|
      device, destination = line.split(' ')
      if destination == '00000000'
        interface = device
        break
      end
    end
  end
  interface
end

.nmcli_version ⇒ Object 



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# File 'lib/facter/util/dhcp_servers.rb', line 38

def self.nmcli_version
  if version = Facter::Core::Execution.exec("nmcli --version")
    version.scan(/version\s(\d+)\.?(\d+)?\.?(\d+)?\.?(\d+)?/).flatten.map(&:to_i)
  end
end