Module: VagrantPlugins::ProviderLibvirt::Util::NetworkUtil

Includes:
Vagrant::Util::NetworkIP
Included in:
Action::CreateNetworkInterfaces, Action::CreateNetworks
Defined in:
lib/vagrant-libvirt/util/network_util.rb

Instance Method Summary collapse

Instance Method Details

#configured_networks(env, logger) ⇒ Object 



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# File 'lib/vagrant-libvirt/util/network_util.rb', line 21

def configured_networks(env, logger)
  qemu_use_session = env[:machine].provider_config.qemu_use_session
  qemu_use_agent = env[:machine].provider_config.qemu_use_agent
  management_network_device = env[:machine].provider_config.management_network_device
  management_network_name = env[:machine].provider_config.management_network_name
  management_network_address = env[:machine].provider_config.management_network_address
  management_network_mode = env[:machine].provider_config.management_network_mode
  management_network_mac = env[:machine].provider_config.management_network_mac
  management_network_guest_ipv6 = env[:machine].provider_config.management_network_guest_ipv6
  management_network_autostart = env[:machine].provider_config.management_network_autostart
  management_network_pci_bus = env[:machine].provider_config.management_network_pci_bus
  management_network_pci_slot = env[:machine].provider_config.management_network_pci_slot
  management_network_domain = env[:machine].provider_config.management_network_domain
  management_network_mtu = env[:machine].provider_config.management_network_mtu
  management_network_keep = env[:machine].provider_config.management_network_keep
  management_network_driver_iommu = env[:machine].provider_config.management_network_driver_iommu
  logger.info "Using #{management_network_name} at #{management_network_address} as the management network #{management_network_mode} is the mode"

  begin
    management_network_ip = IPAddr.new(management_network_address)
  rescue ArgumentError
    raise Errors::ManagementNetworkError,
          error_message: "#{management_network_address} is not a valid IP address"
  end

  # capture address into $1 and mask into $2
  management_network_ip.inspect =~ /IPv4:(.*)\/(.*)>/

  if Regexp.last_match(2) == '255.255.255.255'
    raise Errors::ManagementNetworkError,
          error_message: "#{management_network_address} does not include both an address and subnet mask"
  end

  if qemu_use_session
    management_network_options = {
      iface_type: :public_network,
      dev: management_network_device,
      mode: 'bridge',
      type: 'bridge',
      bus: management_network_pci_bus,
      slot: management_network_pci_slot
    }
  else
    management_network_options = {
      iface_type: :private_network,
      network_name: management_network_name,
      ip: Regexp.last_match(1),
      netmask: Regexp.last_match(2),
      dhcp_enabled: true,
      forward_mode: management_network_mode,
      guest_ipv6: management_network_guest_ipv6,
      autostart: management_network_autostart,
      bus: management_network_pci_bus,
      slot: management_network_pci_slot
    }
  end

  management_network_options[:driver_iommu] = management_network_driver_iommu

  unless management_network_mac.nil?
    management_network_options[:mac] = management_network_mac
  end

  unless management_network_domain.nil?
    management_network_options[:domain_name] = management_network_domain
  end

  unless management_network_mtu.nil?
    management_network_options[:mtu] = management_network_mtu
  end

  unless management_network_pci_bus.nil? and management_network_pci_slot.nil?
    management_network_options[:bus] = management_network_pci_bus
    management_network_options[:slot] = management_network_pci_slot
  end

  if management_network_keep
    management_network_options[:always_destroy] = false
  end

  # if there is a box and management network is disabled
  # need qemu agent enabled and at least one network that can be accessed
  if (
    env[:machine].config.vm.box &&
    !env[:machine].provider_config.mgmt_attach &&
    !env[:machine].provider_config.qemu_use_agent &&
    !env[:machine].config.vm.networks.any? { |type, _| ["private_network", "public_network"].include?(type.to_s) }
  )
    raise Errors::ManagementNetworkRequired
  end

  # add management network to list of networks to check
  # unless mgmt_attach set to false
  networks = if env[:machine].provider_config.mgmt_attach
               [management_network_options]
             else
               []
             end

  env[:machine].config.vm.networks.each do |type, original_options|
    logger.debug "In config found network type #{type} options #{original_options}"
    # Options can be specified in Vagrantfile in short format (:ip => ...),
    # or provider format # (:libvirt__network_name => ...).
    # https://github.com/mitchellh/vagrant/blob/main/lib/vagrant/util/scoped_hash_override.rb
    options = scoped_hash_override(original_options, :libvirt)
    # store type in options
    # use default values if not already set
    options = {
      iface_type:   type,
      netmask:      options[:network_address] ?
                    IPAddr.new(options[:network_address]).get_mask :
                    '255.255.255.0',
      dhcp_enabled: true,
      forward_mode: 'nat',
      always_destroy: true
    }.merge(options)

    if options[:type].to_s == 'dhcp' && options[:ip].nil?
      options[:network_name] = options[:network_name] ?
                               options[:network_name] :
                               'vagrant-private-dhcp'
    end

    # add to list of networks to check
    networks.push(options)
  end

  networks
end

#libvirt_networks(driver) ⇒ Object

Return a list of all (active and inactive) Libvirt networks as a list of hashes with their name, network address and status (active or not)



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# File 'lib/vagrant-libvirt/util/network_util.rb', line 153

def libvirt_networks(driver)
  libvirt_networks = []

  # Iterate over all (active and inactive) networks.
  driver.list_all_networks.each do |libvirt_network|

    # Parse ip address and netmask from the network xml description.
    xml = Nokogiri::XML(libvirt_network.xml_desc)
    ip = xml.xpath('/network/ip/@address').first
    ip = ip.value if ip
    netmask = xml.xpath('/network/ip/@netmask').first
    netmask = netmask.value if netmask

    dhcp_enabled = if xml.at_xpath('//network/ip/dhcp')
                     true
                   else
                     false
                   end

    domain_name = xml.at_xpath('/network/domain/@name')
    domain_name = domain_name.value if domain_name

    # Calculate network address of network from ip address and
    # netmask.
    network_address = (network_address(ip, netmask) if ip && netmask)

    libvirt_networks << {
      name:             libvirt_network.name,
      ip_address:       ip,
      netmask:          netmask,
      network_address:  network_address,
      dhcp_enabled:     dhcp_enabled,
      bridge_name:      libvirt_network.bridge_name,
      domain_name:      domain_name,
      created:          true,
      active:           libvirt_network.active?,
      autostart:        libvirt_network.autostart?,
      libvirt_network:  libvirt_network
    }
  end

  libvirt_networks
end