public Crawl(Node node, int expected, SymphonySecurityOverlord bso,
EventHandler finished) : base(finished)
{
Expected = expected;
Bso = bso;
Node = node;
_crawled = new Hashtable(expected);
}
public ApplicationNode(StructuredNode node, IDht dht, RpcDhtProxy dht_proxy,
NCService ncservice, SecurityOverlord security_overlord)
{
Node = node;
Dht = dht;
DhtProxy = dht_proxy;
NCService = ncservice;
SecurityOverlord = security_overlord;
SymphonySecurityOverlord = security_overlord as SymphonySecurityOverlord;
}
/// <summary>Creates an ApplicationNode and prepares it for connection to
/// the overlay. For historical reasons it is linked to _node, _dht,
/// _rpc_dht, and _bso.</summary>
public virtual ApplicationNode CreateNode(NodeConfig node_config)
{
// Get a Node ID for the new Node
AHAddress address = null;
try {
address = (AHAddress)AddressParser.Parse(node_config.NodeAddress);
} catch {
address = Utils.GenerateAHAddress();
}
// Create the Node state
StructuredNode node = new StructuredNode(address, node_config.BrunetNamespace);
_shutdown.OnExit += node.Disconnect;
IEnumerable addresses = IPAddresses.GetIPAddresses(node_config.DevicesToBind);
SecurityOverlord so = null;
// Enable Security if requested
if (node_config.Security.Enabled)
{
if (node_config.Security.SelfSignedCertificates)
{
SecurityPolicy.SetDefaultSecurityPolicy(SecurityPolicy.DefaultEncryptor,
SecurityPolicy.DefaultAuthenticator, true);
}
byte[] blob = null;
using (FileStream fs = File.Open(node_config.Security.KeyPath, FileMode.Open)) {
blob = new byte[fs.Length];
fs.Read(blob, 0, blob.Length);
}
RSACryptoServiceProvider rsa_private = new RSACryptoServiceProvider();
rsa_private.ImportCspBlob(blob);
CertificateHandler ch = null;
if (node_config.Security.Dtls)
{
ch = new OpenSslCertificateHandler(node_config.Security.CertificatePath,
address.ToString());
}
else
{
ch = new CertificateHandler(node_config.Security.CertificatePath,
address.ToString());
}
if (node_config.Security.SecureEdges)
{
node.EdgeVerifyMethod = EdgeVerify.AddressInSubjectAltName;
}
// A hack to enable a test for security that doesn't require each peer
// to exchange certificates
if (node_config.Security.TestEnable)
{
blob = rsa_private.ExportCspBlob(false);
RSACryptoServiceProvider rsa_pub = new RSACryptoServiceProvider();
rsa_pub.ImportCspBlob(blob);
CertificateMaker cm = new CertificateMaker("United States", "UFL",
"ACIS", "David Wolinsky", "*****@*****.**", rsa_pub,
"brunet:node:abcdefghijklmnopqrs");
Certificate cacert = cm.Sign(cm, rsa_private);
cm = new CertificateMaker("United States", "UFL",
"ACIS", "David Wolinsky", "*****@*****.**", rsa_pub,
address.ToString());
Certificate cert = cm.Sign(cacert, rsa_private);
ch.AddCACertificate(cacert.X509);
ch.AddSignedCertificate(cert.X509);
}
if (node_config.Security.Dtls)
{
OpenSslCertificateHandler ssl_ch = ch as OpenSslCertificateHandler;
so = new DtlsOverlord(rsa_private, ssl_ch, new PType(20));
node.GetTypeSource(new PType(20)).Subscribe(so, null);
}
else
{
so = new SymphonySecurityOverlord(node, rsa_private, ch, node.Rrm);
node.GetTypeSource(PeerSecOverlord.Security).Subscribe(so, null);
}
so.Subscribe(node, null);
}
// Add Dht
new TableServer(node);
IDht dht = new Dht(node, 3, 20);
RpcDhtProxy dht_proxy = new RpcDhtProxy(dht, node);
// Setup Vivaldi if requested
IRelayOverlap ito = null;
NCService ncservice = null;
if (node_config.NCService.Enabled)
{
ncservice = new NCService(node, node_config.NCService.Checkpoint);
if (node_config.NCService.OptimizeShortcuts)
{
node.Ssco.TargetSelector = new VivaldiTargetSelector(node, ncservice);
}
ito = new NCRelayOverlap(ncservice);
}
else
{
ito = new SimpleRelayOverlap();
}
// Create the ApplicationNode
ApplicationNode app_node = new ApplicationNode(node, dht, dht_proxy, ncservice, so);
// Add Edge listeners
EdgeListener el = null;
foreach (NodeConfig.EdgeListener item in node_config.EdgeListeners)
{
el = CreateEdgeListener(item, app_node, addresses);
if (node_config.Security.SecureEdgesEnabled)
{
el = new SecureEdgeListener(el, so);
}
node.AddEdgeListener(el);
}
// Create the tunnel and potentially wrap it in a SecureEL
el = new Relay.RelayEdgeListener(node, ito);
if (node_config.Security.SecureEdgesEnabled)
{
el = new SecureEdgeListener(el, so);
}
node.AddEdgeListener(el);
List <TransportAddress> RemoteTAs = null;
if (node_config.RemoteTAs != null)
{
RemoteTAs = new List <TransportAddress>();
foreach (String ta in node_config.RemoteTAs)
{
RemoteTAs.Add(TransportAddressFactory.CreateInstance(ta));
}
node.RemoteTAs = RemoteTAs;
}
// Add XmlRpc
if (node_config.XmlRpcManager.Enabled)
{
if (_xrm == null)
{
_xrm = new XmlRpcManagerServer(node_config.XmlRpcManager.Port);
}
_xrm.Add(node, GetXmlRpcUri(app_node));
new RpcDht(dht, node);
}
if (node_config.PrivateNodeConfig != null &&
node_config.PrivateNodeConfig.Enabled)
{
CreatePrivateNode(app_node, NodeConfig.GetPrivateNodeConfig(node_config));
}
return(app_node);
}
public static void Commands(Simulator sim)
{
string command = String.Empty;
Console.WriteLine("Type HELP for a list of commands.\n");
while (command != "Q")
{
bool secure = false;
Console.Write("#: ");
// Commands can have parameters separated by spaces
string[] parts = Console.ReadLine().Split(' ');
command = parts[0].ToUpper();
try {
if (command.Equals("S"))
{
secure = true;
command = parts[1].ToUpper();;
}
switch (command)
{
case "B":
int forwarders = (parts.Length >= 2) ? Int32.Parse(parts[1]) : -1;
Broadcast bcast = new Broadcast(sim.SimBroadcastHandler,
sim.RandomNode().Node, forwarders, TaskFinished);
bcast.Start();
RunUntilTaskFinished();
break;
case "C":
sim.CheckRing(true);
break;
case "P":
sim.PrintConnections();
break;
case "M":
Console.WriteLine("Memory Usage: " + GC.GetTotalMemory(true));
break;
case "CR":
NodeMapping nm = sim.Nodes.Values[0];
SymphonySecurityOverlord bso = null;
if (secure)
{
bso = nm.Sso;
}
Crawl c = new Crawl(nm.Node, sim.Nodes.Count, bso, TaskFinished);
c.Start();
RunUntilTaskFinished();
break;
case "A2A":
AllToAll atoa = new AllToAll(sim.Nodes, secure, TaskFinished);
atoa.Start();
RunUntilTaskFinished();
break;
case "A":
sim.AddNode();
break;
case "D":
sim.RemoveNode(true, true);
break;
case "R":
sim.RemoveNode(false, true);
break;
case "REVOKE":
sim.Revoke(true);
break;
case "RUN":
int steps = (parts.Length >= 2) ? Int32.Parse(parts[1]) : 0;
if (steps > 0)
{
SimpleTimer.RunSteps(steps);
}
else
{
SimpleTimer.RunStep();
}
break;
case "Q":
break;
case "CONSTATE":
sim.PrintConnectionState();
break;
case "H":
Console.WriteLine("Commands: \n");
Console.WriteLine("A - add a node");
Console.WriteLine("D - remove a node");
Console.WriteLine("R - abort a node");
Console.WriteLine("C - check the ring using ConnectionTables");
Console.WriteLine("P - Print connections for each node to the screen");
Console.WriteLine("M - Current memory usage according to the garbage collector");
Console.WriteLine("[S] CR - Perform a (secure) crawl of the network using RPC");
Console.WriteLine("[S] A2A - Perform all-to-all measurement of the network using RPC");
Console.WriteLine("Q - Quit");
break;
default:
Console.WriteLine("Invalid command");
break;
}
} catch (Exception e) {
Console.WriteLine("Error: " + e);
}
Console.WriteLine();
}
}
