Class: VagrantPlugins::ProviderVeertu::Action::NetworkFixIPv6

Inherits:
Object
  • Object
show all
Includes:
Vagrant::Util::Presence, Vagrant::Util::ScopedHashOverride
Defined in:
lib/vagrant-veertu/action/network_fix_ipv6.rb

Overview

This middleware works around a bug in Veertu where booting a VM with an IPv6 host-only network will someties lose the route to that machine.

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ NetworkFixIPv6

Returns a new instance of NetworkFixIPv6.



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# File 'lib/vagrant-veertu/action/network_fix_ipv6.rb', line 19

def initialize(app, env)
  @logger = Log4r::Logger.new("vagrant::plugins::veertu::network")
  @app    = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-veertu/action/network_fix_ipv6.rb', line 24

def call(env)
  @env = env

  # Determine if we have an IPv6 network
  has_v6 = false
  env[:machine].config.vm.networks.each do |type, options|
    next if type != :private_network
    options = scoped_hash_override(options, :veertu)
    next if options[:ip].to_s.strip == ""

    if IPAddr.new(options[:ip]).ipv6?
      has_v6 = true
      break
    end
  end

  # Call up
  @app.call(env)

  # If we have no IPv6, forget it
  return if !has_v6

  host_only_interfaces(env).each do |interface|
    next if !present?(interface[:ipv6])
    next if interface[:status] != "Up"

    ip = IPAddr.new(interface[:ipv6])
    ip |= ("1" * (128 - interface[:ipv6_prefix].to_i)).to_i(2)

    @logger.info("testing IPv6: #{ip}")

    begin
      UDPSocket.new(Socket::AF_INET6).connect(ip.to_s, 80)
    rescue Errno::EHOSTUNREACH
      @logger.info("IPv6 host unreachable. Fixing: #{ip}")
      env[:machine].provider.driver.reconfig_host_only(interface)
    end
  end
end

#host_only_interface_names(env) ⇒ Array<String>

The list of interface names for host-only adapters.

Returns:

  • (Array<String>) 


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# File 'lib/vagrant-veertu/action/network_fix_ipv6.rb', line 66

def host_only_interface_names(env)
  env[:machine].provider.driver.read_network_interfaces
    .map { |_, i| i[:hostonly] if i[:type] == :hostonly }.compact
end

#host_only_interfaces(env) ⇒ Array

The list of host_only_interfaces that are tied to a host-only adapter.

Returns:

  • (Array) 


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# File 'lib/vagrant-veertu/action/network_fix_ipv6.rb', line 73

def host_only_interfaces(env)
  iface_names = self.host_only_interface_names(env)
  env[:machine].provider.driver.read_host_only_interfaces
    .select { |interface| iface_names.include?(interface[:name]) }
end