X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b969c14b66a498dbe7562cec4fbc5747b2d988d7..cb3b89f0092e32cae6038964a0a6d4cefa7812ed:/src/surf/network_ns3.cpp?ds=sidebyside diff --git a/src/surf/network_ns3.cpp b/src/surf/network_ns3.cpp index 2624c3e60d..871a39ccfa 100644 --- a/src/surf/network_ns3.cpp +++ b/src/surf/network_ns3.cpp @@ -5,7 +5,10 @@ * under the terms of the license (GNU LGPL) which comes with this package. */ #include "ns3/core-module.h" +#include "ns3/node.h" +#include "ns3/ns3_interface.h" +#include "ns3/ns3_simulator.h" #include "src/surf/network_ns3.hpp" #include "src/surf/HostImpl.hpp" @@ -15,15 +18,33 @@ #include "simgrid/s4u/As.hpp" -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ns3, surf, "Logging specific to the SURF network NS3 module"); int NS3_EXTENSION_ID; xbt_dynar_t IPV4addr = xbt_dynar_new(sizeof(char*),free); static double time_to_next_flow_completion = -1; +/***************** + * Crude globals * + *****************/ + extern xbt_dict_t dict_socket; +static ns3::InternetStackHelper stack; +static ns3::NodeContainer nodes; +static ns3::NodeContainer Cluster_nodes; +static ns3::Ipv4InterfaceContainer interfaces; + +static int number_of_nodes = 0; +static int number_of_clusters_nodes = 0; +static int number_of_links = 1; +static int number_of_networks = 1; +static int port_number = 1025; //Port number is limited from 1025 to 65 000 + +static NS3Sim* ns3_sim = 0; + + /************* * Callbacks * *************/ @@ -32,7 +53,16 @@ static void simgrid_ns3_add_host(simgrid::s4u::Host& host) { const char* id = host.name().c_str(); XBT_DEBUG("NS3_ADD_HOST '%s'", id); - host.extension_set(NS3_EXTENSION_ID, ns3_add_host(id)); + + ns3_node_t ns3host = xbt_new0(s_ns3_node_t,1); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + nodes.Add(node); + ns3host->node_num = number_of_nodes; + ns3host->type = NS3_NETWORK_ELEMENT_HOST; + number_of_nodes++; + + host.extension_set(NS3_EXTENSION_ID, ns3host); } static void parse_ns3_add_link(sg_platf_link_cbarg_t link) @@ -124,8 +154,8 @@ static void parse_ns3_add_cluster(sg_platf_cluster_cbarg_t cluster) router_id = bprintf("ns3_%s%d%s", cluster->prefix, elmts, cluster->suffix); XBT_DEBUG("Create link from '%s' to '%s'",host_id,router_id); - ns3_nodes_t host_src = ns3_find_host(host_id); - ns3_nodes_t host_dst = ns3_find_host(router_id); + ns3_node_t host_src = ns3_find_host(host_id); + ns3_node_t host_dst = ns3_find_host(router_id); if(host_src && host_dst){} else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); @@ -181,12 +211,12 @@ static void create_ns3_topology(void) XBT_DEBUG("\tLink (%s) bdw:%s lat:%s", link->getName(), link_bdw, link_lat); //create link ns3 - ns3_nodes_t host_src = ns3_find_host(src); + ns3_node_t host_src = ns3_find_host(src); if (!host_src) - host_src = static_cast(xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL)); - ns3_nodes_t host_dst = ns3_find_host(dst); + host_src = static_cast(xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL)); + ns3_node_t host_dst = ns3_find_host(dst); if(!host_dst) - host_dst = static_cast(xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL)); + host_dst = static_cast(xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL)); if (!host_src || !host_dst) xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); @@ -225,7 +255,7 @@ static void free_ns3_link(void * elmts) static void free_ns3_host(void * elmts) { - ns3_nodes_t host = static_cast(elmts); + ns3_node_t host = static_cast(elmts); free(host); } @@ -254,7 +284,7 @@ NetworkNS3Model::NetworkNS3Model() : NetworkModel() { } NetworkNS3Model::~NetworkNS3Model() { - ns3_finalize(); + delete ns3_sim; xbt_dynar_free_container(&IPV4addr); xbt_dict_free(&dict_socket); } @@ -426,3 +456,224 @@ int NetworkNS3Action::unref() } } + + + + + +void ns3_simulator(double min){ + ns3_sim->simulator_start(min); +} + +simgrid::surf::NetworkNS3Action* ns3_get_socket_action(void *socket){ + return ((MySocket *)socket)->action; +} + +double ns3_get_socket_remains(void *socket){ + return ((MySocket *)socket)->remaining; +} + +double ns3_get_socket_sent(void *socket){ + return ((MySocket *)socket)->sentBytes; +} + +bool ns3_get_socket_is_finished(void *socket){ + return ((MySocket *)socket)->finished; +} + +int ns3_create_flow(const char* a,const char *b,double start,u_int32_t TotalBytes,simgrid::surf::NetworkNS3Action * action) +{ + ns3_node_t node1 = ns3_find_host(a); + ns3_node_t node2 = ns3_find_host(b); + + ns3::Ptr src_node = nodes.Get(node1->node_num); + ns3::Ptr dst_node = nodes.Get(node2->node_num); + + char* addr = (char*)xbt_dynar_get_as(IPV4addr,node2->node_num,char*); + + XBT_DEBUG("ns3_create_flow %d Bytes from %d to %d with Interface %s",TotalBytes, node1->node_num, node2->node_num,addr); + ns3_sim->create_flow_NS3(src_node, dst_node, port_number, + start, + addr, + TotalBytes, + action); + + port_number++; + if(port_number >= 65001 ) xbt_die("Too many connections! Port number is saturated."); + return 0; +} + +// initialize the NS3 interface and environment +int ns3_initialize(const char* TcpProtocol){ + xbt_assert(!ns3_sim, "ns3 already initialized"); + ns3_sim = new NS3Sim(); + +// tcpModel are: +// "ns3::TcpNewReno" +// "ns3::TcpReno" +// "ns3::TcpTahoe" + + ns3::Config::SetDefault ("ns3::TcpSocket::SegmentSize", ns3::UintegerValue (1024)); // 1024-byte packet for easier reading + ns3::Config::SetDefault ("ns3::TcpSocket::DelAckCount", ns3::UintegerValue (1)); + + if(!strcmp(TcpProtocol,"default")){ + return 0; + } + if(!strcmp(TcpProtocol,"Reno")){ + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpReno")); + return 0; + } + if(!strcmp(TcpProtocol,"NewReno")){ + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpNewReno")); + return 0; + } + if(!strcmp(TcpProtocol,"Tahoe")){ + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpTahoe")); + return 0; + } + + XBT_ERROR("The ns3/TcpModel must be : NewReno or Reno or Tahoe"); + return 0; +} + +void * ns3_add_host_cluster(const char * id) +{ + ns3_node_t host = xbt_new0(s_ns3_node_t,1); + XBT_DEBUG("Interface ns3 add host[%d] '%s'",number_of_nodes,id); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + Cluster_nodes.Add(node); + nodes.Add(node); + host->node_num = number_of_nodes; + host->type = NS3_NETWORK_ELEMENT_HOST; + number_of_nodes++; + return host; +} + +void * ns3_add_router(const char * id) +{ + ns3_node_t router = xbt_new0(s_ns3_node_t,1); + XBT_DEBUG("Interface ns3 add router[%d] '%s'",number_of_nodes,id); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + nodes.Add(node); + router->node_num = number_of_nodes; + router->type = NS3_NETWORK_ELEMENT_ROUTER; + number_of_nodes++; + return router; +} + +void ns3_add_cluster(char * bw,char * lat,const char *id) +{ + + XBT_DEBUG("cluster_id: %s",id); + XBT_DEBUG("bw: %s lat: %s",bw,lat); + XBT_DEBUG("Number of %s nodes: %d",id,Cluster_nodes.GetN() - number_of_clusters_nodes); + + ns3::NodeContainer Nodes; + + for(unsigned int i = number_of_clusters_nodes; i < Cluster_nodes.GetN() ; i++){ + Nodes.Add(Cluster_nodes.Get(i)); + XBT_DEBUG("Add node %d to cluster",i); + } + number_of_clusters_nodes = Cluster_nodes.GetN(); + + XBT_DEBUG("Add router %d to cluster",nodes.GetN()-Nodes.GetN()-1); + Nodes.Add(nodes.Get(nodes.GetN()-Nodes.GetN()-1)); + + if(Nodes.GetN() > 65000) + xbt_die("Cluster with NS3 is limited to 65000 nodes"); + ns3::CsmaHelper csma; + csma.SetChannelAttribute ("DataRate", ns3::StringValue (bw)); + csma.SetChannelAttribute ("Delay", ns3::StringValue (lat)); + ns3::NetDeviceContainer devices = csma.Install (Nodes); + XBT_DEBUG("Create CSMA"); + + char * adr = bprintf("%d.%d.0.0",number_of_networks,number_of_links); + XBT_DEBUG("Assign IP Addresses %s to CSMA.",adr); + ns3::Ipv4AddressHelper ipv4; + ipv4.SetBase (adr, "255.255.0.0"); + free(adr); + interfaces.Add(ipv4.Assign (devices)); + + if(number_of_links == 255){ + if(number_of_networks == 255) + xbt_die("Number of links and networks exceed 255*255"); + number_of_links = 1; + number_of_networks++; + }else{ + number_of_links++; + } + XBT_DEBUG("Number of nodes in Cluster_nodes: %d",Cluster_nodes.GetN()); +} + +void * ns3_add_AS(const char * id) +{ + XBT_DEBUG("Interface ns3 add AS '%s'",id); + return NULL; +} + +static char* transformIpv4Address (ns3::Ipv4Address from){ + std::stringstream sstream; + sstream << from ; + std::string s = sstream.str(); + return bprintf("%s",s.c_str()); +} + +void ns3_add_link(int src, e_ns3_network_element_type_t type_src, + int dst, e_ns3_network_element_type_t type_dst, + char *bw, char *lat) +{ + if(number_of_links == 1 ) { + LogComponentEnable("UdpEchoClientApplication", ns3::LOG_LEVEL_INFO); + LogComponentEnable("UdpEchoServerApplication", ns3::LOG_LEVEL_INFO); + } + + ns3::MyPointToPointHelper pointToPoint; + + ns3::NetDeviceContainer netA; + ns3::Ipv4AddressHelper address; + + ns3::Ptr a = nodes.Get(src); + ns3::Ptr b = nodes.Get(dst); + + XBT_DEBUG("\tAdd PTP from %d to %d bw:'%s' lat:'%s'",src,dst,bw,lat); + pointToPoint.SetDeviceAttribute ("DataRate", ns3::StringValue (bw)); + pointToPoint.SetChannelAttribute ("Delay", ns3::StringValue (lat)); + //pointToPoint.EnablePcapAll("test_ns3_trace"); //DEBUG + + netA.Add(pointToPoint.Install (a, type_src, b, type_dst)); + + char * adr = bprintf("%d.%d.0.0",number_of_networks,number_of_links); + address.SetBase (adr, "255.255.0.0"); + XBT_DEBUG("\tInterface stack '%s'",adr); + free(adr); + interfaces.Add(address.Assign (netA)); + + char *tmp = transformIpv4Address(interfaces.GetAddress(interfaces.GetN()-2)); + xbt_dynar_set_as(IPV4addr,src,char*,tmp); + XBT_DEBUG("Have write '%s' for Node '%d'",(char*)xbt_dynar_get_as(IPV4addr,src,char*),src); + + tmp = transformIpv4Address(interfaces.GetAddress(interfaces.GetN()-1)); + xbt_dynar_set_as(IPV4addr,dst,char*,tmp); + XBT_DEBUG("Have write '%s' for Node '%d'",(char*)xbt_dynar_get_as(IPV4addr,dst,char*),dst); + + if(number_of_links == 255){ + if(number_of_networks == 255) + xbt_die("Number of links and networks exceed 255*255"); + number_of_links = 1; + number_of_networks++; + }else{ + number_of_links++; + } +} + +void ns3_end_platform(void) +{ + XBT_DEBUG("InitializeRoutes"); + ns3::GlobalRouteManager::BuildGlobalRoutingDatabase(); + ns3::GlobalRouteManager::InitializeRoutes(); +}