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Add helper for pre-filling ND cache

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This commit is contained in:
Tim Schubert 2020-07-02 10:27:15 +02:00
parent efa52f8e51
commit ed80214449
2 changed files with 4 additions and 38 deletions
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40
examples/isl-example.cc
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@ -12,43 +12,6 @@ using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("IslExample"); NS_LOG_COMPONENT_DEFINE ("IslExample");
void PrepareNds (NodeContainer &nodes, Ipv6InterfaceContainer &interfaces)
{
// prepare NDS cache
for (uint32_t i = 0; i < nodes.GetN (); i++)
{
Ptr<Node> node = nodes.Get (i);
Ptr<NetDevice> dev = node->GetDevice (1); // TODO right index?
uint32_t ifIndex = dev->GetIfIndex ();
Ptr<Ipv6L3Protocol> ipv6 = node->GetObject<Ipv6L3Protocol> ();
Ptr<Ipv6Interface> interface = ipv6->GetInterface (ifIndex);
Ptr<NdiscCache> cache = interface->GetNdiscCache ();
for (uint32_t j = 0; j < nodes.GetN (); j++)
{
// every other device
if (i == j)
{
continue;
}
Ptr<NetDevice> otherDevice = nodes.Get (j)->GetDevice (1);
Address address = otherDevice->GetAddress (); // MAC
// and associated address
uint32_t otherIfIndex = otherDevice->GetIfIndex ();
// TODO which address to use? site-local, global, link?
Ipv6Address ipaddr = interfaces.GetAddress (otherIfIndex, 1); // IP
// update cache
NdiscCache::Entry* entry = cache->Lookup (ipaddr);
if (entry == 0)
{
entry = cache->Add (ipaddr);
}
entry->SetMacAddress (address);
}
}
}
int int
main (int argc, char *argv[]) main (int argc, char *argv[])
{ {
@ -79,7 +42,8 @@ main (int argc, char *argv[])
Ipv6InterfaceContainer interfaces = address.Assign (devices); Ipv6InterfaceContainer interfaces = address.Assign (devices);
PrepareNds (nodes, interfaces); NdCacheHelper nsHelper;
nsHelper.Install (nodes, interfaces);
UdpEchoServerHelper echoServer (9); UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (nodes); ApplicationContainer serverApps = echoServer.Install (nodes);

2
wscript
View file

@ -20,6 +20,7 @@ def build(bld):
'helper/leo-helper.cc', 'helper/leo-helper.cc',
'model/mock-net-device.cc', 'model/mock-net-device.cc',
'model/mock-channel.cc', 'model/mock-channel.cc',
'helper/nd-cache-helper.cc',
] ]
module_test = bld.create_ns3_module_test_library('leo') module_test = bld.create_ns3_module_test_library('leo')
@ -41,6 +42,7 @@ def build(bld):
'helper/leo-helper.h', 'helper/leo-helper.h',
'model/mock-net-device.h', 'model/mock-net-device.h',
'model/mock-channel.h', 'model/mock-channel.h',
'helper/nd-cache-helper.h',
] ]
if bld.env.ENABLE_EXAMPLES: if bld.env.ENABLE_EXAMPLES: