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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014-2015, 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 "face-manager.hpp"
#include "core/network-interface.hpp"
#include "face/lp-face-wrapper.hpp"
#include "face/tcp-factory.hpp"
#include "face/udp-factory.hpp"
#include "fw/face-table.hpp"
#include <ndn-cxx/management/nfd-face-status.hpp>
#include <ndn-cxx/management/nfd-channel-status.hpp>
#include <ndn-cxx/management/nfd-face-event-notification.hpp>
#ifdef HAVE_UNIX_SOCKETS
#include "face/unix-stream-factory.hpp"
#endif // HAVE_UNIX_SOCKETS
#ifdef HAVE_LIBPCAP
#include "face/ethernet-factory.hpp"
#include "face/ethernet-face.hpp"
#endif // HAVE_LIBPCAP
#ifdef HAVE_WEBSOCKET
#include "face/websocket-factory.hpp"
#endif // HAVE_WEBSOCKET
namespace nfd {
NFD_LOG_INIT("FaceManager");
FaceManager::FaceManager(FaceTable& faceTable,
Dispatcher& dispatcher,
CommandValidator& validator)
: ManagerBase(dispatcher, validator, "faces")
, m_faceTable(faceTable)
{
registerCommandHandler<ndn::nfd::FaceCreateCommand>("create",
bind(&FaceManager::createFace, this, _2, _3, _4, _5));
registerCommandHandler<ndn::nfd::FaceDestroyCommand>("destroy",
bind(&FaceManager::destroyFace, this, _2, _3, _4, _5));
registerCommandHandler<ndn::nfd::FaceEnableLocalControlCommand>("enable-local-control",
bind(&FaceManager::enableLocalControl, this, _2, _3, _4, _5));
registerCommandHandler<ndn::nfd::FaceDisableLocalControlCommand>("disable-local-control",
bind(&FaceManager::disableLocalControl, this, _2, _3, _4, _5));
registerStatusDatasetHandler("list", bind(&FaceManager::listFaces, this, _1, _2, _3));
registerStatusDatasetHandler("channels", bind(&FaceManager::listChannels, this, _1, _2, _3));
registerStatusDatasetHandler("query", bind(&FaceManager::queryFaces, this, _1, _2, _3));
auto postNotification = registerNotificationStream("events");
m_faceAddConn =
m_faceTable.onAdd.connect(bind(&FaceManager::afterFaceAdded, this, _1, postNotification));
m_faceRemoveConn =
m_faceTable.onRemove.connect(bind(&FaceManager::afterFaceRemoved, this, _1, postNotification));
}
void
FaceManager::setConfigFile(ConfigFile& configFile)
{
configFile.addSectionHandler("face_system", bind(&FaceManager::processConfig, this, _1, _2, _3));
}
void
FaceManager::createFace(const Name& topPrefix, const Interest& interest,
const ControlParameters& parameters,
const ndn::mgmt::CommandContinuation& done)
{
FaceUri uri;
if (!uri.parse(parameters.getUri())) {
NFD_LOG_TRACE("failed to parse URI");
return done(ControlResponse(400, "Malformed command"));
}
if (!uri.isCanonical()) {
NFD_LOG_TRACE("received non-canonical URI");
return done(ControlResponse(400, "Non-canonical URI"));
}
FactoryMap::iterator factory = m_factories.find(uri.getScheme());
if (factory == m_factories.end()) {
return done(ControlResponse(501, "Unsupported protocol"));
}
try {
factory->second->createFace(uri,
parameters.getFacePersistency(),
bind(&FaceManager::afterCreateFaceSuccess,
this, parameters, _1, done),
bind(&FaceManager::afterCreateFaceFailure,
this, _1, done));
}
catch (const std::runtime_error& error) {
std::string errorMessage = "Face creation failed: ";
errorMessage += error.what();
NFD_LOG_ERROR(errorMessage);
return done(ControlResponse(500, errorMessage));
}
catch (const std::logic_error& error) {
std::string errorMessage = "Face creation failed: ";
errorMessage += error.what();
NFD_LOG_ERROR(errorMessage);
return done(ControlResponse(500, errorMessage));
}
}
void
FaceManager::destroyFace(const Name& topPrefix, const Interest& interest,
const ControlParameters& parameters,
const ndn::mgmt::CommandContinuation& done)
{
shared_ptr<Face> target = m_faceTable.get(parameters.getFaceId());
if (target) {
target->close();
}
done(ControlResponse(200, "OK").setBody(parameters.wireEncode()));
}
void
FaceManager::enableLocalControl(const Name& topPrefix, const Interest& interest,
const ControlParameters& parameters,
const ndn::mgmt::CommandContinuation& done)
{
auto result = extractLocalControlParameters(interest, parameters, done);
if (result.isValid) {
result.face->setLocalControlHeaderFeature(result.feature, true);
return done(ControlResponse(200, "OK").setBody(parameters.wireEncode()));
}
}
void
FaceManager::disableLocalControl(const Name& topPrefix, const Interest& interest,
const ControlParameters& parameters,
const ndn::mgmt::CommandContinuation& done)
{
auto result = extractLocalControlParameters(interest, parameters, done);
if (result.isValid) {
result.face->setLocalControlHeaderFeature(result.feature, false);
return done(ControlResponse(200, "OK").setBody(parameters.wireEncode()));
}
}
void
FaceManager::afterCreateFaceSuccess(ControlParameters& parameters,
const shared_ptr<Face>& newFace,
const ndn::mgmt::CommandContinuation& done)
{
addCreatedFaceToForwarder(newFace);
parameters.setFaceId(newFace->getId());
parameters.setUri(newFace->getRemoteUri().toString());
parameters.setFacePersistency(newFace->getPersistency());
done(ControlResponse(200, "OK").setBody(parameters.wireEncode()));
}
void
FaceManager::afterCreateFaceFailure(const std::string& reason,
const ndn::mgmt::CommandContinuation& done)
{
NFD_LOG_DEBUG("Failed to create face: " << reason);
done(ControlResponse(408, "Failed to create face: " + reason));
}
FaceManager::ExtractLocalControlParametersResult
FaceManager::extractLocalControlParameters(const Interest& request,
const ControlParameters& parameters,
const ndn::mgmt::CommandContinuation& done)
{
ExtractLocalControlParametersResult result;
result.isValid = false;
auto face = m_faceTable.get(request.getIncomingFaceId());
if (!static_cast<bool>(face)) {
NFD_LOG_DEBUG("command result: faceid " << request.getIncomingFaceId() << " not found");
done(ControlResponse(410, "Face not found"));
return result;
}
if (!face->isLocal()) {
NFD_LOG_DEBUG("command result: cannot enable local control on non-local faceid " <<
face->getId());
done(ControlResponse(412, "Face is non-local"));
return result;
}
result.isValid = true;
result.face = dynamic_pointer_cast<LocalFace>(face);
result.feature = static_cast<LocalControlFeature>(parameters.getLocalControlFeature());
return result;
}
void
FaceManager::listFaces(const Name& topPrefix, const Interest& interest,
ndn::mgmt::StatusDatasetContext& context)
{
for (const auto& face : m_faceTable) {
context.append(face->getFaceStatus().wireEncode());
}
context.end();
}
void
FaceManager::listChannels(const Name& topPrefix, const Interest& interest,
ndn::mgmt::StatusDatasetContext& context)
{
std::set<shared_ptr<ProtocolFactory>> seenFactories;
for (auto i = m_factories.begin(); i != m_factories.end(); ++i) {
const shared_ptr<ProtocolFactory>& factory = i->second;
if (seenFactories.find(factory) != seenFactories.end()) {
continue;
}
seenFactories.insert(factory);
std::list<shared_ptr<const Channel>> channels = factory->getChannels();
for (auto j = channels.begin(); j != channels.end(); ++j) {
ndn::nfd::ChannelStatus entry;
entry.setLocalUri((*j)->getUri().toString());
context.append(entry.wireEncode());
}
}
context.end();
}
void
FaceManager::queryFaces(const Name& topPrefix, const Interest& interest,
ndn::mgmt::StatusDatasetContext& context)
{
ndn::nfd::FaceQueryFilter faceFilter;
const Name& query = interest.getName();
try {
faceFilter.wireDecode(query[-1].blockFromValue());
}
catch (const tlv::Error&) {
NFD_LOG_DEBUG("query result: malformed filter");
return context.reject(ControlResponse(400, "malformed filter"));
}
for (const auto& face : m_faceTable) {
if (doesMatchFilter(faceFilter, face)) {
context.append(face->getFaceStatus().wireEncode());
}
}
context.end();
}
bool
FaceManager::doesMatchFilter(const ndn::nfd::FaceQueryFilter& filter, shared_ptr<Face> face)
{
if (filter.hasFaceId() &&
filter.getFaceId() != static_cast<uint64_t>(face->getId())) {
return false;
}
if (filter.hasUriScheme() &&
filter.getUriScheme() != face->getRemoteUri().getScheme() &&
filter.getUriScheme() != face->getLocalUri().getScheme()) {
return false;
}
if (filter.hasRemoteUri() &&
filter.getRemoteUri() != face->getRemoteUri().toString()) {
return false;
}
if (filter.hasLocalUri() &&
filter.getLocalUri() != face->getLocalUri().toString()) {
return false;
}
if (filter.hasFaceScope() &&
(filter.getFaceScope() == ndn::nfd::FACE_SCOPE_LOCAL) != face->isLocal()) {
return false;
}
if (filter.hasFacePersistency() &&
filter.getFacePersistency() != face->getPersistency()) {
return false;
}
if (filter.hasLinkType() &&
(filter.getLinkType() == ndn::nfd::LINK_TYPE_MULTI_ACCESS) != face->isMultiAccess()) {
return false;
}
return true;
}
void
FaceManager::afterFaceAdded(shared_ptr<Face> face,
const ndn::mgmt::PostNotification& post)
{
ndn::nfd::FaceEventNotification notification;
notification.setKind(ndn::nfd::FACE_EVENT_CREATED);
face->copyStatusTo(notification);
post(notification.wireEncode());
}
void
FaceManager::afterFaceRemoved(shared_ptr<Face> face,
const ndn::mgmt::PostNotification& post)
{
ndn::nfd::FaceEventNotification notification;
notification.setKind(ndn::nfd::FACE_EVENT_DESTROYED);
face->copyStatusTo(notification);
post(notification.wireEncode());
}
void
FaceManager::processConfig(const ConfigSection& configSection,
bool isDryRun,
const std::string& filename)
{
bool hasSeenUnix = false;
bool hasSeenTcp = false;
bool hasSeenUdp = false;
bool hasSeenEther = false;
bool hasSeenWebSocket = false;
const std::vector<NetworkInterfaceInfo> nicList(listNetworkInterfaces());
for (const auto& item : configSection) {
if (item.first == "unix") {
if (hasSeenUnix) {
BOOST_THROW_EXCEPTION(Error("Duplicate \"unix\" section"));
}
hasSeenUnix = true;
processSectionUnix(item.second, isDryRun);
}
else if (item.first == "tcp") {
if (hasSeenTcp) {
BOOST_THROW_EXCEPTION(Error("Duplicate \"tcp\" section"));
}
hasSeenTcp = true;
processSectionTcp(item.second, isDryRun);
}
else if (item.first == "udp") {
if (hasSeenUdp) {
BOOST_THROW_EXCEPTION(Error("Duplicate \"udp\" section"));
}
hasSeenUdp = true;
processSectionUdp(item.second, isDryRun, nicList);
}
else if (item.first == "ether") {
if (hasSeenEther) {
BOOST_THROW_EXCEPTION(Error("Duplicate \"ether\" section"));
}
hasSeenEther = true;
processSectionEther(item.second, isDryRun, nicList);
}
else if (item.first == "websocket") {
if (hasSeenWebSocket) {
BOOST_THROW_EXCEPTION(Error("Duplicate \"websocket\" section"));
}
hasSeenWebSocket = true;
processSectionWebSocket(item.second, isDryRun);
}
else {
BOOST_THROW_EXCEPTION(Error("Unrecognized option \"" + item.first + "\""));
}
}
}
void
FaceManager::processSectionUnix(const ConfigSection& configSection, bool isDryRun)
{
// ; the unix section contains settings of Unix stream faces and channels
// unix
// {
// path /var/run/nfd.sock ; Unix stream listener path
// }
#if defined(HAVE_UNIX_SOCKETS)
std::string path = "/var/run/nfd.sock";
for (auto i = configSection.begin(); i != configSection.end(); ++i) {
if (i->first == "path") {
path = i->second.get_value<std::string>();
}
else {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Unrecognized option \"" +
i->first + "\" in \"unix\" section"));
}
}
if (!isDryRun) {
if (m_factories.count("unix") > 0) {
return;
}
shared_ptr<UnixStreamFactory> factory = make_shared<UnixStreamFactory>();
shared_ptr<UnixStreamChannel> unixChannel = factory->createChannel(path);
// Should acceptFailed callback be used somehow?
unixChannel->listen(bind(&FaceTable::add, &m_faceTable, _1),
UnixStreamChannel::ConnectFailedCallback());
m_factories.insert(std::make_pair("unix", factory));
}
#else
BOOST_THROW_EXCEPTION(ConfigFile::Error("NFD was compiled without Unix sockets support, "
"cannot process \"unix\" section"));
#endif // HAVE_UNIX_SOCKETS
}
void
FaceManager::processSectionTcp(const ConfigSection& configSection, bool isDryRun)
{
// ; the tcp section contains settings of TCP faces and channels
// tcp
// {
// listen yes ; set to 'no' to disable TCP listener, default 'yes'
// port 6363 ; TCP listener port number
// }
std::string port = "6363";
bool needToListen = true;
bool enableV4 = true;
bool enableV6 = true;
for (auto i = configSection.begin(); i != configSection.end(); ++i) {
if (i->first == "port") {
port = i->second.get_value<std::string>();
try {
uint16_t portNo = boost::lexical_cast<uint16_t>(port);
NFD_LOG_TRACE("TCP port set to " << portNo);
}
catch (const std::bad_cast& error) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option " +
i->first + "\" in \"tcp\" section"));
}
}
else if (i->first == "listen") {
needToListen = ConfigFile::parseYesNo(i, i->first, "tcp");
}
else if (i->first == "enable_v4") {
enableV4 = ConfigFile::parseYesNo(i, i->first, "tcp");
}
else if (i->first == "enable_v6") {
enableV6 = ConfigFile::parseYesNo(i, i->first, "tcp");
}
else {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Unrecognized option \"" +
i->first + "\" in \"tcp\" section"));
}
}
if (!enableV4 && !enableV6) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("IPv4 and IPv6 channels have been disabled."
" Remove \"tcp\" section to disable TCP channels or"
" re-enable at least one channel type."));
}
if (!isDryRun) {
if (m_factories.count("tcp") > 0) {
return;
}
shared_ptr<TcpFactory> factory = make_shared<TcpFactory>(port);
m_factories.insert(std::make_pair("tcp", factory));
if (enableV4) {
shared_ptr<TcpChannel> ipv4Channel = factory->createChannel("0.0.0.0", port);
if (needToListen) {
// Should acceptFailed callback be used somehow?
ipv4Channel->listen(bind(&FaceTable::add, &m_faceTable, _1),
TcpChannel::ConnectFailedCallback());
}
m_factories.insert(std::make_pair("tcp4", factory));
}
if (enableV6) {
shared_ptr<TcpChannel> ipv6Channel = factory->createChannel("::", port);
if (needToListen) {
// Should acceptFailed callback be used somehow?
ipv6Channel->listen(bind(&FaceTable::add, &m_faceTable, _1),
TcpChannel::ConnectFailedCallback());
}
m_factories.insert(std::make_pair("tcp6", factory));
}
}
}
void
FaceManager::processSectionUdp(const ConfigSection& configSection,
bool isDryRun,
const std::vector<NetworkInterfaceInfo>& nicList)
{
// ; the udp section contains settings of UDP faces and channels
// udp
// {
// port 6363 ; UDP unicast port number
// idle_timeout 600 ; idle time (seconds) before closing a UDP unicast face
// keep_alive_interval 25 ; interval (seconds) between keep-alive refreshes
// ; NFD creates one UDP multicast face per NIC
// mcast yes ; set to 'no' to disable UDP multicast, default 'yes'
// mcast_port 56363 ; UDP multicast port number
// mcast_group 224.0.23.170 ; UDP multicast group (IPv4 only)
// }
std::string port = "6363";
bool enableV4 = true;
bool enableV6 = true;
size_t timeout = 600;
size_t keepAliveInterval = 25;
bool useMcast = true;
std::string mcastGroup = "224.0.23.170";
std::string mcastPort = "56363";
for (auto i = configSection.begin(); i != configSection.end(); ++i) {
if (i->first == "port") {
port = i->second.get_value<std::string>();
try {
uint16_t portNo = boost::lexical_cast<uint16_t>(port);
NFD_LOG_TRACE("UDP port set to " << portNo);
}
catch (const std::bad_cast& error) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option " +
i->first + "\" in \"udp\" section"));
}
}
else if (i->first == "enable_v4") {
enableV4 = ConfigFile::parseYesNo(i, i->first, "udp");
}
else if (i->first == "enable_v6") {
enableV6 = ConfigFile::parseYesNo(i, i->first, "udp");
}
else if (i->first == "idle_timeout") {
try {
timeout = i->second.get_value<size_t>();
}
catch (const std::exception& e) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option \"" +
i->first + "\" in \"udp\" section"));
}
}
else if (i->first == "keep_alive_interval") {
try {
keepAliveInterval = i->second.get_value<size_t>();
/// \todo Make use of keepAliveInterval
/// \todo what is keep alive interval used for?
(void)(keepAliveInterval);
}
catch (const std::exception& e) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option \"" +
i->first + "\" in \"udp\" section"));
}
}
else if (i->first == "mcast") {
useMcast = ConfigFile::parseYesNo(i, i->first, "udp");
}
else if (i->first == "mcast_port") {
mcastPort = i->second.get_value<std::string>();
try {
uint16_t portNo = boost::lexical_cast<uint16_t>(mcastPort);
NFD_LOG_TRACE("UDP multicast port set to " << portNo);
}
catch (const std::bad_cast& error) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option " +
i->first + "\" in \"udp\" section"));
}
}
else if (i->first == "mcast_group") {
using namespace boost::asio::ip;
mcastGroup = i->second.get_value<std::string>();
try {
address mcastGroupTest = address::from_string(mcastGroup);
if (!mcastGroupTest.is_v4()) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option \"" +
i->first + "\" in \"udp\" section"));
}
}
catch(const std::runtime_error& e) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option \"" +
i->first + "\" in \"udp\" section"));
}
}
else {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Unrecognized option \"" +
i->first + "\" in \"udp\" section"));
}
}
if (!enableV4 && !enableV6) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("IPv4 and IPv6 channels have been disabled."
" Remove \"udp\" section to disable UDP channels or"
" re-enable at least one channel type."));
}
else if (useMcast && !enableV4) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("IPv4 multicast requested, but IPv4 channels"
" have been disabled (conflicting configuration options set)"));
}
if (!isDryRun) {
shared_ptr<UdpFactory> factory;
bool isReload = false;
if (m_factories.count("udp") > 0) {
isReload = true;
factory = static_pointer_cast<UdpFactory>(m_factories["udp"]);
}
else {
factory = make_shared<UdpFactory>(port);
m_factories.insert(std::make_pair("udp", factory));
}
if (!isReload && enableV4) {
shared_ptr<UdpChannel> v4Channel =
factory->createChannel("0.0.0.0", port, time::seconds(timeout));
v4Channel->listen(bind(&FaceTable::add, &m_faceTable, _1),
UdpChannel::ConnectFailedCallback());
m_factories.insert(std::make_pair("udp4", factory));
}
if (!isReload && enableV6) {
shared_ptr<UdpChannel> v6Channel =
factory->createChannel("::", port, time::seconds(timeout));
v6Channel->listen(bind(&FaceTable::add, &m_faceTable, _1),
UdpChannel::ConnectFailedCallback());
m_factories.insert(std::make_pair("udp6", factory));
}
if (useMcast && enableV4) {
std::vector<NetworkInterfaceInfo> ipv4MulticastInterfaces;
for (const auto& nic : nicList) {
if (nic.isUp() && nic.isMulticastCapable() && !nic.ipv4Addresses.empty()) {
ipv4MulticastInterfaces.push_back(nic);
}
}
bool isNicNameNecessary = false;
#if defined(__linux__)
if (ipv4MulticastInterfaces.size() > 1) {
// On Linux if we have more than one MulticastUdpFace
// we need to specify the name of the interface
isNicNameNecessary = true;
}
#endif
std::list<shared_ptr<face::LpFaceWrapper>> multicastFacesToRemove;
for (auto i = factory->getMulticastFaces().begin();
i != factory->getMulticastFaces().end();
++i) {
multicastFacesToRemove.push_back(i->second);
}
for (const auto& nic : ipv4MulticastInterfaces) {
auto newFace = factory->createMulticastFace(nic.ipv4Addresses[0].to_string(),
mcastGroup, mcastPort,
isNicNameNecessary ? nic.name : "");
addCreatedFaceToForwarder(newFace);
multicastFacesToRemove.remove(newFace);
}
for (const auto& face : multicastFacesToRemove) {
face->close();
}
}
else {
std::list<shared_ptr<face::LpFaceWrapper>> multicastFacesToRemove;
for (auto i = factory->getMulticastFaces().begin();
i != factory->getMulticastFaces().end();
++i) {
multicastFacesToRemove.push_back(i->second);
}
for (const auto& face : multicastFacesToRemove) {
face->close();
}
}
}
}
void
FaceManager::processSectionEther(const ConfigSection& configSection,
bool isDryRun,
const std::vector<NetworkInterfaceInfo>& nicList)
{
// ; the ether section contains settings of Ethernet faces and channels
// ether
// {
// ; NFD creates one Ethernet multicast face per NIC
// mcast yes ; set to 'no' to disable Ethernet multicast, default 'yes'
// mcast_group 01:00:5E:00:17:AA ; Ethernet multicast group
// }
#if defined(HAVE_LIBPCAP)
bool useMcast = true;
ethernet::Address mcastGroup(ethernet::getDefaultMulticastAddress());
for (auto i = configSection.begin(); i != configSection.end(); ++i) {
if (i->first == "mcast") {
useMcast = ConfigFile::parseYesNo(i, i->first, "ether");
}
else if (i->first == "mcast_group") {
mcastGroup = ethernet::Address::fromString(i->second.get_value<std::string>());
if (mcastGroup.isNull()) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option \"" +
i->first + "\" in \"ether\" section"));
}
}
else {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Unrecognized option \"" +
i->first + "\" in \"ether\" section"));
}
}
if (!isDryRun) {
shared_ptr<EthernetFactory> factory;
if (m_factories.count("ether") > 0) {
factory = static_pointer_cast<EthernetFactory>(m_factories["ether"]);
}
else {
factory = make_shared<EthernetFactory>();
m_factories.insert(std::make_pair("ether", factory));
}
if (useMcast) {
std::list<shared_ptr<EthernetFace> > multicastFacesToRemove;
for (auto i = factory->getMulticastFaces().begin();
i != factory->getMulticastFaces().end();
++i) {
multicastFacesToRemove.push_back(i->second);
}
for (const auto& nic : nicList) {
if (nic.isUp() && nic.isMulticastCapable()) {
try {
shared_ptr<EthernetFace> newFace =
factory->createMulticastFace(nic, mcastGroup);
addCreatedFaceToForwarder(newFace);
multicastFacesToRemove.remove(newFace);
}
catch (const EthernetFactory::Error& factoryError) {
NFD_LOG_ERROR(factoryError.what() << ", continuing");
}
catch (const EthernetFace::Error& faceError) {
NFD_LOG_ERROR(faceError.what() << ", continuing");
}
}
}
for (auto i = multicastFacesToRemove.begin();
i != multicastFacesToRemove.end();
++i) {
(*i)->close();
}
}
else {
std::list<shared_ptr<EthernetFace> > multicastFacesToRemove;
for (auto i = factory->getMulticastFaces().begin();
i != factory->getMulticastFaces().end();
++i) {
multicastFacesToRemove.push_back(i->second);
}
for (auto i = multicastFacesToRemove.begin();
i != multicastFacesToRemove.end();
++i) {
(*i)->close();
}
}
}
#else
BOOST_THROW_EXCEPTION(ConfigFile::Error("NFD was compiled without libpcap, cannot process \"ether\" section"));
#endif // HAVE_LIBPCAP
}
void
FaceManager::processSectionWebSocket(const ConfigSection& configSection, bool isDryRun)
{
// ; the websocket section contains settings of WebSocket faces and channels
// websocket
// {
// listen yes ; set to 'no' to disable WebSocket listener, default 'yes'
// port 9696 ; WebSocket listener port number
// enable_v4 yes ; set to 'no' to disable listening on IPv4 socket, default 'yes'
// enable_v6 yes ; set to 'no' to disable listening on IPv6 socket, default 'yes'
// }
#if defined(HAVE_WEBSOCKET)
std::string port = "9696";
bool needToListen = true;
bool enableV4 = true;
bool enableV6 = true;
for (auto i = configSection.begin(); i != configSection.end(); ++i) {
if (i->first == "port") {
port = i->second.get_value<std::string>();
try {
uint16_t portNo = boost::lexical_cast<uint16_t>(port);
NFD_LOG_TRACE("WebSocket port set to " << portNo);
}
catch (const std::bad_cast& error) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Invalid value for option " +
i->first + "\" in \"websocket\" section"));
}
}
else if (i->first == "listen") {
needToListen = ConfigFile::parseYesNo(i, i->first, "websocket");
}
else if (i->first == "enable_v4") {
enableV4 = ConfigFile::parseYesNo(i, i->first, "websocket");
}
else if (i->first == "enable_v6") {
enableV6 = ConfigFile::parseYesNo(i, i->first, "websocket");
}
else {
BOOST_THROW_EXCEPTION(ConfigFile::Error("Unrecognized option \"" +
i->first + "\" in \"websocket\" section"));
}
}
if (!enableV4 && !enableV6) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("IPv4 and IPv6 channels have been disabled."
" Remove \"websocket\" section to disable WebSocket channels or"
" re-enable at least one channel type."));
}
if (!enableV4 && enableV6) {
BOOST_THROW_EXCEPTION(ConfigFile::Error("NFD does not allow pure IPv6 WebSocket channel."));
}
if (!isDryRun) {
if (m_factories.count("websocket") > 0) {
return;
}
shared_ptr<WebSocketFactory> factory = make_shared<WebSocketFactory>(port);
m_factories.insert(std::make_pair("websocket", factory));
if (enableV6 && enableV4) {
shared_ptr<WebSocketChannel> ip46Channel = factory->createChannel("::", port);
if (needToListen) {
ip46Channel->listen(bind(&FaceTable::add, &m_faceTable, _1));
}
m_factories.insert(std::make_pair("websocket46", factory));
}
else if (enableV4) {
shared_ptr<WebSocketChannel> ipv4Channel = factory->createChannel("0.0.0.0", port);
if (needToListen) {
ipv4Channel->listen(bind(&FaceTable::add, &m_faceTable, _1));
}
m_factories.insert(std::make_pair("websocket4", factory));
}
}
#else
BOOST_THROW_EXCEPTION(ConfigFile::Error("NFD was compiled without WebSocket, "
"cannot process \"websocket\" section"));
#endif // HAVE_WEBSOCKET
}
void
FaceManager::addCreatedFaceToForwarder(shared_ptr<Face> newFace)
{
m_faceTable.add(newFace);
}
} // namespace