udp-factory.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#ifndef NFD_DAEMON_FACE_UDP_FACTORY_HPP
#define NFD_DAEMON_FACE_UDP_FACTORY_HPP

#include "protocol-factory.hpp"
#include "udp-channel.hpp"

namespace nfd {
namespace face {

class UdpFactory : public ProtocolFactory
{
public:
  class Error : public ProtocolFactory::Error
  {
  public:
    explicit
    Error(const std::string& what)
      : ProtocolFactory::Error(what)
    {
    }
  };

  static const std::string&
  getId();

  void
  processConfig(OptionalConfigSection configSection,
                FaceSystem::ConfigContext& context) override;

  void
  createFace(const FaceUri& uri,
             ndn::nfd::FacePersistency persistency,
             bool wantLocalFieldsEnabled,
             const FaceCreatedCallback& onCreated,
             const FaceCreationFailedCallback& onFailure) override;

  shared_ptr<UdpChannel>
  createChannel(const udp::Endpoint& localEndpoint,
                const time::seconds& timeout = time::seconds(600));

  shared_ptr<UdpChannel>
  createChannel(const std::string& localIp, const std::string& localPort,
                const time::seconds& timeout = time::seconds(600));

  std::vector<shared_ptr<const Channel>>
  getChannels() const override;

  shared_ptr<Face>
  createMulticastFace(const udp::Endpoint& localEndpoint,
                      const udp::Endpoint& multicastEndpoint,
                      const std::string& networkInterfaceName = "");

  shared_ptr<Face>
  createMulticastFace(const std::string& localIp,
                      const std::string& multicastIp,
                      const std::string& multicastPort,
                      const std::string& networkInterfaceName = "");

PUBLIC_WITH_TESTS_ELSE_PRIVATE:
  void
  prohibitEndpoint(const udp::Endpoint& endpoint);

  void
  prohibitAllIpv4Endpoints(uint16_t port);

  void
  prohibitAllIpv6Endpoints(uint16_t port);

private:
  shared_ptr<UdpChannel>
  findChannel(const udp::Endpoint& localEndpoint) const;

  shared_ptr<Face>
  findMulticastFace(const udp::Endpoint& localEndpoint) const;

  void
  applyMulticastConfig(const FaceSystem::ConfigContext& context);

private:
  std::map<udp::Endpoint, shared_ptr<UdpChannel>> m_channels;

  struct MulticastConfig
  {
    bool isEnabled = false;
    udp::Endpoint group = udp::getDefaultMulticastGroup();
    NetworkInterfacePredicate netifPredicate;
  };

  MulticastConfig m_mcastConfig;
  std::map<udp::Endpoint, shared_ptr<Face>> m_mcastFaces;

PUBLIC_WITH_TESTS_ELSE_PRIVATE:
  std::set<udp::Endpoint> m_prohibitedEndpoints;
};

} // namespace face
} // namespace nfd

#endif // NFD_DAEMON_FACE_UDP_FACTORY_HPP