face: UnicastEthernetTransport
Change-Id: I4d19f52835d9268f2ea63fd4e0b1a0a5aed95c47
Refs: #4011
diff --git a/daemon/face/ethernet-factory.cpp b/daemon/face/ethernet-factory.cpp
index 7263118..1b348fc 100644
--- a/daemon/face/ethernet-factory.cpp
+++ b/daemon/face/ethernet-factory.cpp
@@ -24,8 +24,8 @@
*/
#include "ethernet-factory.hpp"
-#include "ethernet-transport.hpp"
#include "generic-link-service.hpp"
+#include "multicast-ethernet-transport.hpp"
#include "core/logger.hpp"
#include <boost/range/adaptors.hpp>
#include <boost/range/algorithm/copy.hpp>
@@ -165,7 +165,7 @@
opts.allowReassembly = true;
auto linkService = make_unique<face::GenericLinkService>(opts);
- auto transport = make_unique<face::EthernetTransport>(netif, address, m_mcastConfig.linkType);
+ auto transport = make_unique<face::MulticastEthernetTransport>(netif, address, m_mcastConfig.linkType);
auto face = make_shared<Face>(std::move(linkService), std::move(transport));
m_mcastFaces[key] = face;
diff --git a/daemon/face/ethernet-transport.cpp b/daemon/face/ethernet-transport.cpp
index 4b039c6..be44e0c 100644
--- a/daemon/face/ethernet-transport.cpp
+++ b/daemon/face/ethernet-transport.cpp
@@ -33,27 +33,11 @@
#include <arpa/inet.h> // for htons() and ntohs()
#include <net/ethernet.h> // for struct ether_header
#include <net/if.h> // for struct ifreq
-#include <stdio.h> // for snprintf()
#include <sys/ioctl.h> // for ioctl()
#include <unistd.h> // for dup()
-#if defined(__linux__)
-#include <netpacket/packet.h> // for struct packet_mreq
-#include <sys/socket.h> // for setsockopt()
-#endif
-
-#ifdef SIOCADDMULTI
-#if defined(__APPLE__) || defined(__FreeBSD__)
-#include <net/if_dl.h> // for struct sockaddr_dl
-#endif
-#endif
-
#if !defined(PCAP_NETMASK_UNKNOWN)
-/*
- * Value to pass to pcap_compile() as the netmask if you don't know what
- * the netmask is.
- */
-#define PCAP_NETMASK_UNKNOWN 0xffffffff
+#define PCAP_NETMASK_UNKNOWN 0xffffffff
#endif
namespace nfd {
@@ -61,29 +45,20 @@
NFD_LOG_INIT("EthernetTransport");
-EthernetTransport::EthernetTransport(const NetworkInterfaceInfo& interface,
- const ethernet::Address& mcastAddress,
- ndn::nfd::LinkType linkType)
+EthernetTransport::EthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& remoteEndpoint)
: m_pcap(nullptr, pcap_close)
, m_socket(getGlobalIoService())
- , m_srcAddress(interface.etherAddress)
- , m_destAddress(mcastAddress)
- , m_interfaceName(interface.name)
+ , m_srcAddress(localEndpoint.etherAddress)
+ , m_destAddress(remoteEndpoint)
+ , m_interfaceName(localEndpoint.name)
#if defined(__linux__)
- , m_interfaceIndex(interface.index)
+ , m_interfaceIndex(localEndpoint.index)
#endif
#ifdef _DEBUG
, m_nDropped(0)
#endif
{
- this->setLocalUri(FaceUri::fromDev(interface.name));
- this->setRemoteUri(FaceUri(mcastAddress));
- this->setScope(ndn::nfd::FACE_SCOPE_NON_LOCAL);
- this->setPersistency(ndn::nfd::FACE_PERSISTENCY_PERMANENT);
- this->setLinkType(linkType);
-
- NFD_LOG_FACE_INFO("Creating transport");
-
pcapInit();
int fd = pcap_get_selectable_fd(m_pcap.get());
@@ -98,37 +73,22 @@
// do this after assigning m_socket because getInterfaceMtu uses it
this->setMtu(getInterfaceMtu());
- char filter[110];
- // note #1: we cannot use std::snprintf because it's not available
- // on some platforms (see #2299)
- // note #2: "not vlan" must appear last in the filter expression, or the
- // rest of the filter won't work as intended (see pcap-filter(7))
- snprintf(filter, sizeof(filter),
- "(ether proto 0x%x) && (ether dst %s) && (not ether src %s) && (not vlan)",
- ethernet::ETHERTYPE_NDN,
- m_destAddress.toString().c_str(),
- m_srcAddress.toString().c_str());
- setPacketFilter(filter);
-
- if (!m_destAddress.isBroadcast() && !joinMulticastGroup()) {
- NFD_LOG_FACE_WARN("Falling back to promiscuous mode");
- pcap_set_promisc(m_pcap.get(), 1);
- }
-
m_socket.async_read_some(boost::asio::null_buffers(),
bind(&EthernetTransport::handleRead, this,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
}
-void EthernetTransport::doSend(Transport::Packet&& packet)
+void
+EthernetTransport::doSend(Transport::Packet&& packet)
{
NFD_LOG_FACE_TRACE(__func__);
sendPacket(packet.packet);
}
-void EthernetTransport::doClose()
+void
+EthernetTransport::doClose()
{
NFD_LOG_FACE_TRACE(__func__);
@@ -158,7 +118,7 @@
#ifdef HAVE_PCAP_SET_IMMEDIATE_MODE
// Enable "immediate mode", effectively disabling any read buffering in the kernel.
- // This corresponds to the BIOCIMMEDIATE ioctl on BSD-like systems (including OS X)
+ // This corresponds to the BIOCIMMEDIATE ioctl on BSD-like systems (including macOS)
// where libpcap uses a BPF device. On Linux this forces libpcap not to use TPACKET_V3,
// even if the kernel supports it, thus preventing bug #1511.
pcap_set_immediate_mode(m_pcap.get(), 1);
@@ -188,72 +148,6 @@
BOOST_THROW_EXCEPTION(Error("pcap_setfilter: " + std::string(pcap_geterr(m_pcap.get()))));
}
-bool
-EthernetTransport::joinMulticastGroup()
-{
-#if defined(__linux__)
- packet_mreq mr{};
- mr.mr_ifindex = m_interfaceIndex;
- mr.mr_type = PACKET_MR_MULTICAST;
- mr.mr_alen = m_destAddress.size();
- std::memcpy(mr.mr_address, m_destAddress.data(), m_destAddress.size());
-
- if (::setsockopt(m_socket.native_handle(), SOL_PACKET,
- PACKET_ADD_MEMBERSHIP, &mr, sizeof(mr)) == 0)
- return true; // success
-
- NFD_LOG_FACE_WARN("setsockopt(PACKET_ADD_MEMBERSHIP) failed: " << std::strerror(errno));
-#endif
-
-#if defined(SIOCADDMULTI)
- ifreq ifr{};
- std::strncpy(ifr.ifr_name, m_interfaceName.c_str(), sizeof(ifr.ifr_name) - 1);
-
-#if defined(__APPLE__) || defined(__FreeBSD__)
- // see bug #2327
- using boost::asio::ip::udp;
- udp::socket sock(getGlobalIoService(), udp::v4());
- int fd = sock.native_handle();
-
- /*
- * Differences between Linux and the BSDs (including OS X):
- * o BSD does not have ifr_hwaddr; use ifr_addr instead.
- * o While OS X seems to accept both AF_LINK and AF_UNSPEC as the address
- * family, FreeBSD explicitly requires AF_LINK, so we have to use AF_LINK
- * and sockaddr_dl instead of the generic sockaddr structure.
- * o BSD's sockaddr (and sockaddr_dl in particular) contains an additional
- * field, sa_len (sdl_len), which must be set to the total length of the
- * structure, including the length field itself.
- * o We do not specify the interface name, thus sdl_nlen is left at 0 and
- * LLADDR is effectively the same as sdl_data.
- */
- sockaddr_dl* sdl = reinterpret_cast<sockaddr_dl*>(&ifr.ifr_addr);
- sdl->sdl_len = sizeof(ifr.ifr_addr);
- sdl->sdl_family = AF_LINK;
- sdl->sdl_alen = m_destAddress.size();
- std::memcpy(LLADDR(sdl), m_destAddress.data(), m_destAddress.size());
-
- static_assert(sizeof(ifr.ifr_addr) >= offsetof(sockaddr_dl, sdl_data) + ethernet::ADDR_LEN,
- "ifr_addr in struct ifreq is too small on this platform");
-#else
- int fd = m_socket.native_handle();
-
- ifr.ifr_hwaddr.sa_family = AF_UNSPEC;
- std::memcpy(ifr.ifr_hwaddr.sa_data, m_destAddress.data(), m_destAddress.size());
-
- static_assert(sizeof(ifr.ifr_hwaddr.sa_data) >= ethernet::ADDR_LEN,
- "ifr_hwaddr in struct ifreq is too small on this platform");
-#endif
-
- if (::ioctl(fd, SIOCADDMULTI, &ifr) == 0)
- return true; // success
-
- NFD_LOG_FACE_WARN("ioctl(SIOCADDMULTI) failed: " << std::strerror(errno));
-#endif
-
- return false;
-}
-
void
EthernetTransport::sendPacket(const ndn::Block& block)
{
@@ -340,7 +234,7 @@
// check that our BPF filter is working correctly
BOOST_ASSERT_MSG(ethernet::Address(eh->ether_dhost) == m_destAddress,
- "Received frame addressed to a different multicast group");
+ "Received frame addressed to another host or multicast group");
BOOST_ASSERT_MSG(sourceAddress != m_srcAddress,
"Received frame sent by this host");
diff --git a/daemon/face/ethernet-transport.hpp b/daemon/face/ethernet-transport.hpp
index 0777d74..8164a33 100644
--- a/daemon/face/ethernet-transport.hpp
+++ b/daemon/face/ethernet-transport.hpp
@@ -43,9 +43,9 @@
namespace face {
/**
- * \brief A multicast Transport that uses raw Ethernet II frames
+ * @brief Base class for Ethernet-based Transports
*/
-class EthernetTransport final : public Transport
+class EthernetTransport : public Transport
{
public:
class Error : public std::runtime_error
@@ -58,42 +58,29 @@
}
};
- /**
- * @brief Creates an Ethernet-based transport for multicast communication
- */
- EthernetTransport(const NetworkInterfaceInfo& interface,
- const ethernet::Address& mcastAddress,
- ndn::nfd::LinkType linkType);
-
protected:
+ EthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& remoteEndpoint);
+
void
doClose() final;
-private:
+ /**
+ * @brief Installs a BPF filter on the receiving socket
+ * @param filterString string containing the BPF program source
+ */
void
- doSend(Transport::Packet&& packet) final;
+ setPacketFilter(const char* filterString);
+private:
/**
* @brief Allocates and initializes a libpcap context for live capture
*/
void
pcapInit();
- /**
- * @brief Installs a BPF filter on the receiving socket
- *
- * @param filterString string containing the source BPF program
- */
void
- setPacketFilter(const char* filterString);
-
- /**
- * @brief Enables receiving frames addressed to our MAC multicast group
- *
- * @return true if successful, false otherwise
- */
- bool
- joinMulticastGroup();
+ doSend(Transport::Packet&& packet) final;
/**
* @brief Sends the specified TLV block on the network wrapped in an Ethernet frame
@@ -130,7 +117,7 @@
size_t
getInterfaceMtu();
-private:
+protected:
unique_ptr<pcap_t, void(*)(pcap_t*)> m_pcap;
boost::asio::posix::stream_descriptor m_socket;
@@ -141,6 +128,7 @@
int m_interfaceIndex;
#endif
+private:
#ifdef _DEBUG
/// number of packets dropped by the kernel, as reported by libpcap
unsigned int m_nDropped;
diff --git a/daemon/face/multicast-ethernet-transport.cpp b/daemon/face/multicast-ethernet-transport.cpp
new file mode 100644
index 0000000..7e7f343
--- /dev/null
+++ b/daemon/face/multicast-ethernet-transport.cpp
@@ -0,0 +1,150 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "multicast-ethernet-transport.hpp"
+#include "core/global-io.hpp"
+
+#include <pcap/pcap.h>
+
+#include <cerrno> // for errno
+#include <cstring> // for memcpy(), strerror(), strncpy()
+#include <net/if.h> // for struct ifreq
+#include <stdio.h> // for snprintf()
+#include <sys/ioctl.h> // for ioctl()
+
+#if defined(__linux__)
+#include <netpacket/packet.h> // for struct packet_mreq
+#include <sys/socket.h> // for setsockopt()
+#endif
+
+#ifdef SIOCADDMULTI
+#if defined(__APPLE__) || defined(__FreeBSD__)
+#include <net/if_dl.h> // for struct sockaddr_dl
+#endif
+#endif
+
+namespace nfd {
+namespace face {
+
+NFD_LOG_INIT("MulticastEthernetTransport");
+
+MulticastEthernetTransport::MulticastEthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& mcastAddress,
+ ndn::nfd::LinkType linkType)
+ : EthernetTransport(localEndpoint, mcastAddress)
+{
+ this->setLocalUri(FaceUri::fromDev(m_interfaceName));
+ this->setRemoteUri(FaceUri(m_destAddress));
+ this->setScope(ndn::nfd::FACE_SCOPE_NON_LOCAL);
+ this->setPersistency(ndn::nfd::FACE_PERSISTENCY_PERMANENT);
+ this->setLinkType(linkType);
+
+ NFD_LOG_FACE_INFO("Creating transport");
+
+ char filter[110];
+ // note #1: we cannot use std::snprintf because it's not available
+ // on some platforms (see #2299)
+ // note #2: "not vlan" must appear last in the filter expression, or the
+ // rest of the filter won't work as intended (see pcap-filter(7))
+ snprintf(filter, sizeof(filter),
+ "(ether proto 0x%x) && (ether dst %s) && (not ether src %s) && (not vlan)",
+ ethernet::ETHERTYPE_NDN,
+ m_destAddress.toString().c_str(),
+ m_srcAddress.toString().c_str());
+ setPacketFilter(filter);
+
+ if (!m_destAddress.isBroadcast() && !joinMulticastGroup()) {
+ NFD_LOG_FACE_WARN("Falling back to promiscuous mode");
+ pcap_set_promisc(m_pcap.get(), 1);
+ }
+}
+
+bool
+MulticastEthernetTransport::joinMulticastGroup()
+{
+#if defined(__linux__)
+ packet_mreq mr{};
+ mr.mr_ifindex = m_interfaceIndex;
+ mr.mr_type = PACKET_MR_MULTICAST;
+ mr.mr_alen = m_destAddress.size();
+ std::memcpy(mr.mr_address, m_destAddress.data(), m_destAddress.size());
+
+ if (::setsockopt(m_socket.native_handle(), SOL_PACKET,
+ PACKET_ADD_MEMBERSHIP, &mr, sizeof(mr)) == 0)
+ return true; // success
+
+ NFD_LOG_FACE_WARN("setsockopt(PACKET_ADD_MEMBERSHIP) failed: " << std::strerror(errno));
+#endif
+
+#if defined(SIOCADDMULTI)
+ ifreq ifr{};
+ std::strncpy(ifr.ifr_name, m_interfaceName.c_str(), sizeof(ifr.ifr_name) - 1);
+
+#if defined(__APPLE__) || defined(__FreeBSD__)
+ // see bug #2327
+ using boost::asio::ip::udp;
+ udp::socket sock(getGlobalIoService(), udp::v4());
+ int fd = sock.native_handle();
+
+ // Differences between Linux and the BSDs (including macOS):
+ // o BSD does not have ifr_hwaddr; use ifr_addr instead.
+ // o While macOS seems to accept both AF_LINK and AF_UNSPEC as the address
+ // family, FreeBSD explicitly requires AF_LINK, so we have to use AF_LINK
+ // and sockaddr_dl instead of the generic sockaddr structure.
+ // o BSD's sockaddr (and sockaddr_dl in particular) contains an additional
+ // field, sa_len (sdl_len), which must be set to the total length of the
+ // structure, including the length field itself.
+ // o We do not specify the interface name, thus sdl_nlen is left at 0 and
+ // LLADDR is effectively the same as sdl_data.
+
+ sockaddr_dl* sdl = reinterpret_cast<sockaddr_dl*>(&ifr.ifr_addr);
+ sdl->sdl_len = sizeof(ifr.ifr_addr);
+ sdl->sdl_family = AF_LINK;
+ sdl->sdl_alen = m_destAddress.size();
+ std::memcpy(LLADDR(sdl), m_destAddress.data(), m_destAddress.size());
+
+ static_assert(sizeof(ifr.ifr_addr) >= offsetof(sockaddr_dl, sdl_data) + ethernet::ADDR_LEN,
+ "ifr_addr in struct ifreq is too small on this platform");
+#else
+ int fd = m_socket.native_handle();
+
+ ifr.ifr_hwaddr.sa_family = AF_UNSPEC;
+ std::memcpy(ifr.ifr_hwaddr.sa_data, m_destAddress.data(), m_destAddress.size());
+
+ static_assert(sizeof(ifr.ifr_hwaddr.sa_data) >= ethernet::ADDR_LEN,
+ "ifr_hwaddr in struct ifreq is too small on this platform");
+#endif
+
+ if (::ioctl(fd, SIOCADDMULTI, &ifr) == 0)
+ return true; // success
+
+ NFD_LOG_FACE_WARN("ioctl(SIOCADDMULTI) failed: " << std::strerror(errno));
+#endif
+
+ return false;
+}
+
+} // namespace face
+} // namespace nfd
diff --git a/daemon/face/multicast-ethernet-transport.hpp b/daemon/face/multicast-ethernet-transport.hpp
new file mode 100644
index 0000000..6d25b41
--- /dev/null
+++ b/daemon/face/multicast-ethernet-transport.hpp
@@ -0,0 +1,59 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NFD_DAEMON_FACE_MULTICAST_ETHERNET_TRANSPORT_HPP
+#define NFD_DAEMON_FACE_MULTICAST_ETHERNET_TRANSPORT_HPP
+
+#include "ethernet-transport.hpp"
+
+namespace nfd {
+namespace face {
+
+/**
+ * @brief A multicast Transport that uses raw Ethernet II frames
+ */
+class MulticastEthernetTransport final : public EthernetTransport
+{
+public:
+ /**
+ * @brief Creates an Ethernet-based transport for multicast communication
+ */
+ MulticastEthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& mcastAddress,
+ ndn::nfd::LinkType linkType);
+
+private:
+ /**
+ * @brief Enables receiving frames addressed to our MAC multicast group
+ * @return true if successful, false otherwise
+ */
+ bool
+ joinMulticastGroup();
+};
+
+} // namespace face
+} // namespace nfd
+
+#endif // NFD_DAEMON_FACE_MULTICAST_ETHERNET_TRANSPORT_HPP
diff --git a/daemon/face/unicast-ethernet-transport.cpp b/daemon/face/unicast-ethernet-transport.cpp
new file mode 100644
index 0000000..e21a793
--- /dev/null
+++ b/daemon/face/unicast-ethernet-transport.cpp
@@ -0,0 +1,66 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "unicast-ethernet-transport.hpp"
+
+#include <stdio.h> // for snprintf()
+
+namespace nfd {
+namespace face {
+
+NFD_LOG_INIT("UnicastEthernetTransport");
+
+UnicastEthernetTransport::UnicastEthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& remoteEndpoint,
+ ndn::nfd::FacePersistency persistency,
+ time::nanoseconds idleTimeout)
+ : EthernetTransport(localEndpoint, remoteEndpoint)
+ , m_idleTimeout(idleTimeout)
+{
+ this->setLocalUri(FaceUri::fromDev(m_interfaceName));
+ this->setRemoteUri(FaceUri(m_destAddress));
+ this->setScope(ndn::nfd::FACE_SCOPE_NON_LOCAL);
+ this->setPersistency(persistency);
+ this->setLinkType(ndn::nfd::LINK_TYPE_POINT_TO_POINT);
+
+ NFD_LOG_FACE_INFO("Creating transport");
+
+ char filter[110];
+ // note #1: we cannot use std::snprintf because it's not available
+ // on some platforms (see #2299)
+ // note #2: "not vlan" must appear last in the filter expression, or the
+ // rest of the filter won't work as intended (see pcap-filter(7))
+ snprintf(filter, sizeof(filter),
+ "(ether proto 0x%x) && (ether src %s) && (ether dst %s) && (not vlan)",
+ ethernet::ETHERTYPE_NDN,
+ m_destAddress.toString().c_str(),
+ m_srcAddress.toString().c_str());
+ setPacketFilter(filter);
+
+ // TODO: implement close on idle and persistency change
+}
+
+} // namespace face
+} // namespace nfd
diff --git a/daemon/face/unicast-ethernet-transport.hpp b/daemon/face/unicast-ethernet-transport.hpp
new file mode 100644
index 0000000..b1a856b
--- /dev/null
+++ b/daemon/face/unicast-ethernet-transport.hpp
@@ -0,0 +1,55 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NFD_DAEMON_FACE_UNICAST_ETHERNET_TRANSPORT_HPP
+#define NFD_DAEMON_FACE_UNICAST_ETHERNET_TRANSPORT_HPP
+
+#include "ethernet-transport.hpp"
+
+namespace nfd {
+namespace face {
+
+/**
+ * @brief A unicast Transport that uses raw Ethernet II frames
+ */
+class UnicastEthernetTransport final : public EthernetTransport
+{
+public:
+ /**
+ * @brief Creates an Ethernet-based transport for unicast communication
+ */
+ UnicastEthernetTransport(const NetworkInterfaceInfo& localEndpoint,
+ const ethernet::Address& remoteEndpoint,
+ ndn::nfd::FacePersistency persistency,
+ time::nanoseconds idleTimeout);
+
+private:
+ const time::nanoseconds m_idleTimeout;
+};
+
+} // namespace face
+} // namespace nfd
+
+#endif // NFD_DAEMON_FACE_UNICAST_ETHERNET_TRANSPORT_HPP