face: use NetworkMonitor::listNetworkInterfaces() in tests
refs #4021
Change-Id: I6daccc3872a0c6b2e2e49390bc5881c796503926
diff --git a/tests/daemon/face/test-netif-ip.cpp b/tests/daemon/face/test-netif-ip.cpp
new file mode 100644
index 0000000..3471ba3
--- /dev/null
+++ b/tests/daemon/face/test-netif-ip.cpp
@@ -0,0 +1,122 @@
+/* -*- 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 "test-netif-ip.hpp"
+#include "core/global-io.hpp"
+#include <ndn-cxx/net/network-monitor.hpp>
+
+namespace nfd {
+namespace tests {
+
+std::vector<shared_ptr<const NetworkInterface>>
+collectNetworkInterfaces(bool allowCached)
+{
+ using ndn::net::NetworkMonitor;
+
+ static std::vector<shared_ptr<const NetworkInterface>> cached;
+ // cached.empty() indicates there's no cached list of netifs.
+ // Although it could also mean a system without any network interface, this situation is rare
+ // because the loopback interface is present on almost all systems.
+
+ if (!allowCached || cached.empty()) {
+ NetworkMonitor netmon(getGlobalIoService());
+ if ((netmon.getCapabilities() & NetworkMonitor::CAP_ENUM) == 0) {
+ BOOST_THROW_EXCEPTION(NetworkMonitor::Error("NetworkMonitor::CAP_ENUM is unavailable"));
+ }
+
+ netmon.onEnumerationCompleted.connect([] { getGlobalIoService().stop(); });
+ getGlobalIoService().run();
+ getGlobalIoService().reset();
+
+ cached = netmon.listNetworkInterfaces();
+ }
+
+ return cached;
+}
+
+namespace {
+
+template<typename E>
+bool
+matchTristate(E e, bool b)
+{
+ return (e == E::DontCare) ||
+ (e == E::Yes && b) ||
+ (e == E::No && !b);
+}
+
+template<AddressFamily AF>
+typename IpAddressFromFamily<AF>::type
+fromIpAddress(const boost::asio::ip::address& a);
+
+template<>
+IpAddressFromFamily<AddressFamily::V4>::type
+fromIpAddress<AddressFamily::V4>(const boost::asio::ip::address& a)
+{
+ return a.to_v4();
+}
+
+template<>
+IpAddressFromFamily<AddressFamily::V6>::type
+fromIpAddress<AddressFamily::V6>(const boost::asio::ip::address& a)
+{
+ return a.to_v6();
+}
+
+} // unnamed namespace
+
+template<AddressFamily AF>
+typename IpAddressFromFamily<AF>::type
+getTestIp(LoopbackAddress loopback, MulticastInterface mcast)
+{
+ for (const auto& interface : collectNetworkInterfaces()) {
+ if (!interface->isUp() ||
+ !matchTristate(loopback, interface->isLoopback()) ||
+ !matchTristate(mcast, interface->canMulticast())) {
+ continue;
+ }
+ for (const auto& address : interface->getNetworkAddresses()) {
+ if (isAddressFamily<AF>(address) &&
+ !address.getIp().is_unspecified() &&
+ address.getScope() != ndn::net::AddressScope::NOWHERE &&
+ address.getScope() != ndn::net::AddressScope::LINK && // link-local addresses are not supported yet (#1428)
+ matchTristate(loopback, address.getIp().is_loopback())) {
+ return fromIpAddress<AF>(address.getIp());
+ }
+ }
+ }
+ return {};
+}
+
+template
+IpAddressFromFamily<AddressFamily::V4>::type
+getTestIp<AddressFamily::V4>(LoopbackAddress loopback, MulticastInterface mcast);
+
+template
+IpAddressFromFamily<AddressFamily::V6>::type
+getTestIp<AddressFamily::V6>(LoopbackAddress loopback, MulticastInterface mcast);
+
+} // namespace tests
+} // namespace nfd