-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <ns3/application-container.h>
#include <ns3/event-id.h>
+#include "ns3/wifi-module.h"
+#include "ns3/mobility-module.h"
+
#include "network_ns3.hpp"
#include "ns3/ns3_simulator.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ns3, surf, "Logging specific to the SURF network ns-3 module");
std::vector<std::string> IPV4addr;
+static std::string transformIpv4Address(ns3::Ipv4Address from);
/*****************
* Crude globals *
static int number_of_links = 1;
static int number_of_networks = 1;
+/* wifi globals */
+static ns3::WifiHelper wifi;
+static ns3::YansWifiPhyHelper wifiPhy = ns3::YansWifiPhyHelper::Default ();
+static ns3::YansWifiChannelHelper wifiChannel = ns3::YansWifiChannelHelper::Default ();
+static ns3::WifiMacHelper wifiMac;
+static ns3::MobilityHelper mobility;
+
simgrid::xbt::Extension<simgrid::kernel::routing::NetPoint, NetPointNs3> NetPointNs3::EXTENSION_ID;
NetPointNs3::NetPointNs3() : ns3_node_(ns3::CreateObject<ns3::Node>(0))
node_num = number_of_nodes++;
}
+WifiZone::WifiZone(std::string name_, simgrid::s4u::Host* host_, ns3::Ptr<ns3::Node> ap_node_,
+ ns3::Ptr<ns3::YansWifiChannel> channel_, int mcs_, int nss_, int network_, int link_) :
+ name(name_), host(host_), ap_node(ap_node_), channel(channel_), mcs(mcs_), nss(nss_),
+ network(network_), link(link_) {
+ n_sta_nodes = 0;
+ wifi_zones[name_] = this;
+}
+
+bool WifiZone::is_ap(ns3::Ptr<ns3::Node> node){
+ for (std::pair<std::string, WifiZone*> zone : wifi_zones)
+ if (zone.second->get_ap_node() == node)
+ return true;
+ return false;
+}
+
+WifiZone* WifiZone::by_name(std::string name) {
+ WifiZone* zone;
+ try {
+ zone = wifi_zones.at(name);
+ }
+ catch (const std::out_of_range& oor) {
+ return nullptr;
+ }
+ return zone;
+}
+
+std::unordered_map<std::string, WifiZone*> WifiZone::wifi_zones;
+
+static void initialize_ns3_wifi() {
+ wifi.SetStandard (ns3::WIFI_PHY_STANDARD_80211n_5GHZ);
+
+ for (auto host : simgrid::s4u::Engine::get_instance()->get_all_hosts()) {
+ const char* wifi_link = host->get_property("wifi_link");
+ const char* wifi_mcs = host->get_property("wifi_mcs");
+ const char* wifi_nss = host->get_property("wifi_nss");
+
+ if (wifi_link)
+ new WifiZone(wifi_link, host, host->get_netpoint()->extension<NetPointNs3>()->ns3_node_,
+ wifiChannel.Create(), wifi_mcs ? atoi(wifi_mcs) : 3, wifi_nss ? atoi(wifi_nss) : 1, 0, 0);
+ }
+}
+
/*************
* Callbacks *
*************/
xbt_assert(host_src, "Cannot find a ns-3 host of name %s", host_id.c_str());
// Any ns-3 route is symmetrical
- ns3_add_link(host_src, host_dst, cluster.bw, cluster.lat);
+ ns3_add_direct_route(host_src, host_dst, cluster.bw, cluster.lat, cluster.id, cluster.sharing_policy);
delete host_dst;
}
}
static void routeCreation_cb(bool symmetrical, simgrid::kernel::routing::NetPoint* src,
- simgrid::kernel::routing::NetPoint* dst, simgrid::kernel::routing::NetPoint* gw_src,
- simgrid::kernel::routing::NetPoint* gw_dst,
+ simgrid::kernel::routing::NetPoint* dst, simgrid::kernel::routing::NetPoint* /*gw_src*/,
+ simgrid::kernel::routing::NetPoint* /*gw_dst*/,
std::vector<simgrid::kernel::resource::LinkImpl*> const& link_list)
{
if (link_list.size() == 1) {
auto* link = static_cast<simgrid::kernel::resource::LinkNS3*>(link_list[0]);
- XBT_DEBUG("Route from '%s' to '%s' with link '%s' %s", src->get_cname(), dst->get_cname(), link->get_cname(),
+ XBT_DEBUG("Route from '%s' to '%s' with link '%s' %s %s", src->get_cname(), dst->get_cname(), link->get_cname(),
+ (link->get_sharing_policy() == simgrid::s4u::Link::SharingPolicy::WIFI ? "(wifi)" : "(wired)"),
(symmetrical ? "(symmetrical)" : "(not symmetrical)"));
// XBT_DEBUG("src (%s), dst (%s), src_id = %d, dst_id = %d",src,dst, src_id, dst_id);
auto* host_src = src->extension<NetPointNs3>();
auto* host_dst = dst->extension<NetPointNs3>();
+ host_src->set_name(src->get_name());
+ host_dst->set_name(dst->get_name());
+
xbt_assert(host_src != nullptr, "Network element %s does not seem to be ns-3-ready", src->get_cname());
xbt_assert(host_dst != nullptr, "Network element %s does not seem to be ns-3-ready", dst->get_cname());
- ns3_add_link(host_src, host_dst, link->get_bandwidth(), link->get_latency());
+ ns3_add_direct_route(host_src, host_dst, link->get_bandwidth(), link->get_latency(), link->get_name(), link->get_sharing_policy());
} else {
static bool warned_about_long_routes = false;
static void postparse_cb()
{
IPV4addr.shrink_to_fit();
-
ns3::GlobalRouteManager::BuildGlobalRoutingDatabase();
ns3::GlobalRouteManager::InitializeRoutes();
}
pt.extension_set<NetPointNs3>(new NetPointNs3());
XBT_VERB("SimGrid's %s is known as node %d within ns-3", pt.get_cname(), pt.extension<NetPointNs3>()->node_num);
});
- surf::on_cluster.connect(&clusterCreation_cb);
+ routing::on_cluster_creation.connect(&clusterCreation_cb);
s4u::Engine::on_platform_created.connect(&postparse_cb);
s4u::NetZone::on_route_creation.connect(&routeCreation_cb);
}
LinkImpl* NetworkNS3Model::create_link(const std::string& name, const std::vector<double>& bandwidths, double latency,
- s4u::Link::SharingPolicy)
+ s4u::Link::SharingPolicy policy)
{
xbt_assert(bandwidths.size() == 1, "ns-3 links must use only 1 bandwidth.");
- return new LinkNS3(this, name, bandwidths[0], latency);
+ return new LinkNS3(this, name, bandwidths[0], latency, policy);
}
Action* NetworkNS3Model::communicate(s4u::Host* src, s4u::Host* dst, double size, double rate)
return -1.0;
XBT_DEBUG("doing a ns3 simulation for a duration of %f", now);
- ns3_simulator(now);
+ ns3_simulator(now);
time_to_next_flow_completion = ns3::Simulator::Now().GetSeconds() - surf_get_clock();
// NS-3 stops as soon as a flow ends,
// but it does not process the other flows that may finish at the same (simulated) time.
// If another flow ends at the same time, time_to_next_flow_completion = 0
if(double_equals(time_to_next_flow_completion, 0, sg_surf_precision))
- time_to_next_flow_completion = 0.0;
-
+ time_to_next_flow_completion = 0.0;
+
XBT_DEBUG("min : %f", now);
XBT_DEBUG("ns3 time : %f", ns3::Simulator::Now().GetSeconds());
XBT_DEBUG("surf time : %f", surf_get_clock());
std::vector<LinkImpl*> route = std::vector<LinkImpl*>();
- action->src_->route_to(action->dst_, route, nullptr);
+ action->get_src().route_to(&action->get_dst(), route, nullptr);
for (auto const& link : route)
- TRACE_surf_resource_set_utilization("LINK", "bandwidth_used", link->get_cname(), action->get_category(),
- (data_delta_sent) / delta, now - delta, delta);
+ instr::resource_set_utilization("LINK", "bandwidth_used", link->get_cname(), action->get_category(),
+ (data_delta_sent) / delta, now - delta, delta);
action->last_sent_ = sgFlow->sent_bytes_;
}
socket_to_destroy.push_back(ns3_socket);
XBT_DEBUG("Destroy socket %p of action %p", ns3_socket.c_str(), action);
action->set_remains(0);
- action->finish(kernel::resource::Action::State::FINISHED);
+ action->finish(Action::State::FINISHED);
} else {
XBT_DEBUG("Socket %p sent %u bytes out of %u (%u remaining)", ns3_socket.c_str(), sgFlow->sent_bytes_,
sgFlow->total_bytes_, sgFlow->remaining_);
* Resource *
************/
-LinkNS3::LinkNS3(NetworkNS3Model* model, const std::string& name, double bandwidth, double latency)
+LinkNS3::LinkNS3(NetworkNS3Model* model, const std::string& name, double bandwidth, double latency,
+ s4u::Link::SharingPolicy policy)
: LinkImpl(model, name, nullptr)
{
bandwidth_.peak = bandwidth;
latency_.peak = latency;
-
- s4u::Link::on_creation(this->piface_);
+ sharing_policy_ = policy;
+
+ if (policy == simgrid::s4u::Link::SharingPolicy::WIFI) {
+ static bool wifi_init = false;
+ if (!wifi_init) {
+ initialize_ns3_wifi();
+ wifi_init = true;
+ }
+
+ ns3::NetDeviceContainer netA;
+ WifiZone* zone = WifiZone::by_name(name);
+ xbt_assert(zone != 0, "Link name '%s' does not match the 'wifi_link' property of a host.", name.c_str());
+
+ wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
+ "ControlMode", ns3::StringValue ("HtMcs0"),
+ "DataMode", ns3::StringValue ("HtMcs" + std::to_string(zone->get_mcs())));
+
+ wifiPhy.SetChannel (zone->get_channel());
+ wifiPhy.Set("Antennas", ns3::UintegerValue(zone->get_nss()));
+ wifiPhy.Set("MaxSupportedTxSpatialStreams", ns3::UintegerValue(zone->get_nss()));
+ wifiPhy.Set("MaxSupportedRxSpatialStreams", ns3::UintegerValue(zone->get_nss()));
+ wifiMac.SetType("ns3::ApWifiMac",
+ "Ssid", ns3::SsidValue(name));
+
+ netA.Add(wifi.Install (wifiPhy, wifiMac, zone->get_ap_node()));
+
+ ns3::Ptr<ns3::ListPositionAllocator> positionAllocS = ns3::CreateObject<ns3::ListPositionAllocator> ();
+ positionAllocS->Add(ns3::Vector(0, 0, 0));
+ mobility.SetPositionAllocator(positionAllocS);
+ mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+ mobility.Install(zone->get_ap_node());
+
+ ns3::Ipv4AddressHelper address;
+ std::string addr = simgrid::xbt::string_printf("%d.%d.0.0", number_of_networks, number_of_links);
+ address.SetBase(addr.c_str(), "255.255.0.0");
+ XBT_DEBUG("\tInterface stack '%s'", addr.c_str());
+ interfaces.Add(address.Assign (netA));
+ zone->set_network(number_of_networks);
+ zone->set_link(number_of_links);
+
+ NetPointNs3* netpoint_ns3 = zone->get_host()->get_netpoint()->extension<NetPointNs3>();
+ int nodeNum = netpoint_ns3->node_num;
+ if (IPV4addr.size() <= (unsigned)nodeNum)
+ IPV4addr.resize(nodeNum + 1);
+ IPV4addr[nodeNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 1));
+
+ if (number_of_links == 255){
+ xbt_assert(number_of_networks < 255, "Number of links and networks exceed 255*255");
+ number_of_links = 1;
+ number_of_networks++;
+ } else {
+ number_of_links++;
+ }
+ }
+ s4u::Link::on_creation(*this->get_iface());
}
LinkNS3::~LinkNS3() = default;
**********/
NetworkNS3Action::NetworkNS3Action(Model* model, double totalBytes, s4u::Host* src, s4u::Host* dst)
- : NetworkAction(model, totalBytes, false), src_(src), dst_(dst)
+ : NetworkAction(model, *src, *dst, totalBytes, false)
{
-
// If there is no other started actions, we need to move NS-3 forward to be sync with SimGrid
if (model->get_started_action_set()->size()==1){
while(double_positive(surf_get_clock() - ns3::Simulator::Now().GetSeconds(), sg_surf_precision)){
}
xbt_assert(port_number <= 65000, "Too many connections! Port number is saturated.");
- s4u::Link::on_communicate(*this, src, dst);
+ s4u::Link::on_communicate(*this);
}
void NetworkNS3Action::suspend() {
THROW_UNIMPLEMENTED;
}
-std::list<LinkImpl*> NetworkNS3Action::links() const
+std::list<LinkImpl*> NetworkNS3Action::get_links() const
{
THROW_UNIMPLEMENTED;
}
void ns3_simulator(double maxSeconds)
{
- ns3::EventId id;
+ ns3::EventId id;
if (maxSeconds > 0.0) // If there is a maximum amount of time to run
id = ns3::Simulator::Schedule(ns3::Seconds(maxSeconds), &ns3::Simulator::Stop);
}
}
-void ns3_add_cluster(const char* id, double bw, double lat) {
+void ns3_add_cluster(const char* /*id*/, double bw, double lat)
+{
ns3::NodeContainer Nodes;
for (unsigned int i = number_of_clusters_nodes; i < Cluster_nodes.GetN(); i++) {
return sstream.str();
}
-void ns3_add_link(NetPointNs3* src, NetPointNs3* dst, double bw, double lat) {
- ns3::PointToPointHelper pointToPoint;
-
+void ns3_add_direct_route(NetPointNs3* src, NetPointNs3* dst, double bw, double lat, std::string link_name,
+ simgrid::s4u::Link::SharingPolicy policy)
+{
ns3::Ipv4AddressHelper address;
+ ns3::NetDeviceContainer netA;
int srcNum = src->node_num;
int dstNum = dst->node_num;
ns3::Ptr<ns3::Node> a = src->ns3_node_;
ns3::Ptr<ns3::Node> b = dst->ns3_node_;
- XBT_DEBUG("\tAdd PTP from %d to %d bw:'%f Bps' lat:'%fs'", srcNum, dstNum, bw, lat);
- pointToPoint.SetDeviceAttribute("DataRate",
- ns3::DataRateValue(ns3::DataRate(bw * 8))); // ns-3 takes bps, but we provide Bps
- pointToPoint.SetChannelAttribute("Delay", ns3::TimeValue(ns3::Seconds(lat)));
+ if (policy == simgrid::s4u::Link::SharingPolicy::WIFI) {
+ xbt_assert(WifiZone::is_ap(a) != WifiZone::is_ap(b), "A wifi route can only exist between an access point node and a station node.");
- ns3::NetDeviceContainer netA;
- netA.Add(pointToPoint.Install (a, b));
+ ns3::Ptr<ns3::Node> apNode = WifiZone::is_ap(a) ? a : b;
+ ns3::Ptr<ns3::Node> staNode = apNode == a ? b : a;
- std::string addr = simgrid::xbt::string_printf("%d.%d.0.0", number_of_networks, number_of_links);
- address.SetBase(addr.c_str(), "255.255.0.0");
- XBT_DEBUG("\tInterface stack '%s'", addr.c_str());
- interfaces.Add(address.Assign (netA));
+ WifiZone* zone = WifiZone::by_name(link_name);
- if (IPV4addr.size() <= (unsigned)srcNum)
- IPV4addr.resize(srcNum + 1);
- IPV4addr[srcNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 2));
+ wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
+ "ControlMode", ns3::StringValue ("HtMcs0"),
+ "DataMode", ns3::StringValue ("HtMcs" + std::to_string(zone->get_mcs())));
- if (IPV4addr.size() <= (unsigned)dstNum)
- IPV4addr.resize(dstNum + 1);
- IPV4addr[dstNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 1));
+ wifiPhy.SetChannel (zone->get_channel());
+ wifiPhy.Set("Antennas", ns3::UintegerValue(zone->get_nss()));
+ wifiPhy.Set("MaxSupportedTxSpatialStreams", ns3::UintegerValue(zone->get_nss()));
+ wifiPhy.Set("MaxSupportedRxSpatialStreams", ns3::UintegerValue(zone->get_nss()));
- if (number_of_links == 255){
- xbt_assert(number_of_networks < 255, "Number of links and networks exceed 255*255");
- number_of_links = 1;
- number_of_networks++;
+ wifiMac.SetType ("ns3::StaWifiMac",
+ "Ssid", ns3::SsidValue(link_name),
+ "ActiveProbing", ns3::BooleanValue(false));
+
+ netA.Add(wifi.Install (wifiPhy, wifiMac, staNode));
+
+ ns3::Config::Set ("/NodeList/*/DeviceList/*/$ns3::WifiNetDevice/Phy/ChannelWidth", ns3::UintegerValue (40));
+
+ NetPointNs3* sta_netpointNs3 = WifiZone::is_ap(src->ns3_node_) ? dst : src;
+ const char* wifi_distance = simgrid::s4u::Host::by_name(sta_netpointNs3->name_)->get_property("wifi_distance");
+ ns3::Ptr<ns3::ListPositionAllocator> positionAllocS = ns3::CreateObject<ns3::ListPositionAllocator> ();
+ positionAllocS->Add(ns3::Vector( wifi_distance ? atof(wifi_distance) : 10.0 , 0, 0));
+ mobility.SetPositionAllocator(positionAllocS);
+ mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+ mobility.Install(staNode);
+
+ std::string addr = simgrid::xbt::string_printf("%d.%d.0.0", zone->get_network(), zone->get_link());
+ address.SetBase(addr.c_str(), "255.255.0.0", ("0.0.0." + std::to_string(zone->get_n_sta_nodes() + 2)).c_str());
+ zone->add_sta_node();
+ XBT_DEBUG("\tInterface stack '%s'", addr.c_str());
+ interfaces.Add(address.Assign (netA));
+ if (IPV4addr.size() <= (unsigned)dstNum)
+ IPV4addr.resize(dstNum + 1);
+ IPV4addr[dstNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 1));
} else {
- number_of_links++;
+ ns3::PointToPointHelper pointToPoint;
+ XBT_DEBUG("\tAdd PTP from %d to %d bw:'%f Bps' lat:'%fs'", srcNum, dstNum, bw, lat);
+ pointToPoint.SetDeviceAttribute("DataRate",
+ ns3::DataRateValue(ns3::DataRate(bw * 8))); // ns-3 takes bps, but we provide Bps
+ pointToPoint.SetChannelAttribute("Delay", ns3::TimeValue(ns3::Seconds(lat)));
+
+ netA.Add(pointToPoint.Install(a, b));
+
+ std::string addr = simgrid::xbt::string_printf("%d.%d.0.0", number_of_networks, number_of_links);
+ address.SetBase(addr.c_str(), "255.255.0.0");
+ XBT_DEBUG("\tInterface stack '%s'", addr.c_str());
+ interfaces.Add(address.Assign (netA));
+
+ if (IPV4addr.size() <= (unsigned)srcNum)
+ IPV4addr.resize(srcNum + 1);
+ IPV4addr[srcNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 2));
+
+ if (IPV4addr.size() <= (unsigned)dstNum)
+ IPV4addr.resize(dstNum + 1);
+ IPV4addr[dstNum] = transformIpv4Address(interfaces.GetAddress(interfaces.GetN() - 1));
+
+ if (number_of_links == 255){
+ xbt_assert(number_of_networks < 255, "Number of links and networks exceed 255*255");
+ number_of_links = 1;
+ number_of_networks++;
+ } else {
+ number_of_links++;
+ }
}
}
