/// <summary>Create a DtlsFilter.</summary>
/// <param name="key">A CryptoKey initialized by the OpenSSL.NET library.</param>
/// <param name="cert">The path to the certificate to use.</param>
/// <param name="ca_cert">The path to the ca certificate to use.</param>
/// <param name="client">Use client initialization parameters.</param>
public DtlsAssociation(ISender sender, CertificateHandler ch, PType ptype,
Ssl ssl, bool client) : base(sender, ch)
{
_ip = new IdentifierPair();
PType = ptype;
_ssl = ssl;
_client = client;
_ssl.SetReadAhead(1);
// Buggy SSL versions have issue with compression and dtls
_ssl.SetOptions((int) SslOptions.SSL_OP_NO_COMPRESSION);
if(client) {
_ssl.SetConnectState();
} else {
_ssl.SetAcceptState();
}
// The ssl object will take control
_read = BIO.MemoryBuffer(false);
_read.NonBlocking = true;
_write = BIO.MemoryBuffer(false);
_write.NonBlocking = true;
_ssl.SetBIO(_read, _write);
_ssl.DoHandshake();
_buffer = new byte[Int16.MaxValue];
_buffer_sync = new object();
_fe_lock = 0;
}
/// <summary>Create a XmppEdge.</summary>
public XmppEdge(IEdgeSendHandler send_handler, XmppTransportAddress local_ta,
XmppTransportAddress remote_ta, bool inbound) :
base(send_handler, inbound)
{
_ip = new IdentifierPair();
_local_ta = local_ta;
_remote_ta = remote_ta;
To = remote_ta.JID;
}
/// <summary>Constructor for an outgoing edge, since we don't know the remote
/// id yet, it must be outgoing!</summary>
public SubringEdge(TransportAddress local_ta, TransportAddress remote_ta,
bool inbound, ISender sender, PType ptype) :
base(null, inbound)
{
_ip = new IdentifierPair();
_local_ta = local_ta;
_remote_ta = remote_ta;
_ptype = ptype;
_overlay_sender = sender;
}
public void Test()
{
MemBlock payload;
int local_id, remote_id;
IdentifierTable it_0 = new IdentifierTable();
IIdentifierPair idpair_0 = new IdentifierPair();
IdentifierTable it_1 = new IdentifierTable();
IIdentifierPair idpair_1 = new IdentifierPair();
it_0.Add(idpair_0);
it_1.Parse(idpair_0.Header, out payload, out local_id, out remote_id);
Assert.AreEqual(local_id, 0, "Inbound local_id");
Assert.AreNotEqual(remote_id, 0, "Inbound remote_id");
idpair_1.RemoteID = remote_id;
it_1.Add(idpair_1);
it_0.Parse(idpair_1.Header, out payload, out local_id, out remote_id);
Assert.IsTrue(it_0.Verify(idpair_0, idpair_1.Header, out payload), "Return");
Assert.IsTrue(it_1.Verify(idpair_1, idpair_0.Header, out payload), "Inbound 2");
Assert.IsTrue(it_0.Verify(idpair_0, idpair_1.Header, out payload), "Return 2");
Assert.AreEqual(idpair_0.LocalID, idpair_1.RemoteID, "idpair_0.LocalID");
Assert.AreEqual(idpair_1.LocalID, idpair_0.RemoteID, "idpair_1.LocalID");
Assert.AreNotEqual(0, idpair_0.LocalID, "idpair_0.LocalID != 0");
Assert.AreNotEqual(0, idpair_1.LocalID, "idpair_1.LocalID != 0");
IIdentifierPair idpair_2 = new IdentifierPair();
idpair_2.RemoteID = idpair_0.LocalID;
idpair_2.LocalID = 1;
try {
Assert.IsFalse(it_0.Verify(idpair_0, idpair_2.Header, out payload), "Malicious packet");
} catch { }
IIdentifierPair idpair_3 = new IdentifierPair();
try {
Assert.IsFalse(it_0.Verify(idpair_3, idpair_3.Header, out payload), "Broken packet");
} catch { }
}