private byte[] AddIndicationHeader(STUNAddress stunAddress, byte[] data)
{
// send indication
MessageSTUN message = CreateMessageSTUN(STUNMethod.DataIndication);
byte[] ret;
if (stunAddress.IsIPv4)
{
ret = new byte[8];
ret[1] = (byte)(0x01); // family
}
else
{
ret = new byte[16];
ret[1] = (byte)(0x02); // family
}
ret[0] = (byte)(0x0);
ret[3] = (byte)(stunAddress.port & 0xff);
ret[2] = (byte)((stunAddress.port >> 8) & 0xff);
ret[2] ^= transactionID[0];
ret[3] ^= transactionID[1];
for (int i = 0; i < stunAddress.address.Length; i++)
{
ret[4 + i] = (byte)(stunAddress.address[i] ^ transactionID[i]);
}
message.WriteBytes(STUNAttribute.XorPeerAddress, ret);
message.WriteEmpty(STUNAttribute.DontFragment);
message.WriteBytes(STUNAttribute.Data, data);
return(message.WriteRequest());
}
public void RequestChannelBind(STUNAddress stunAddress)
{
lock (_lock)
{
MessageSTUN message = CreateMessageSTUN(STUNMethod.ChannelBindRequest);
// channel number [0x4000 through 0x4FFF](uint)random.Next(0x4001, 0x4FFF);
uint channelNumber;
if (!ip2ChannelNumber.ContainsKey(stunAddress.ToString()))
{
GenerateChannelNumberForPeer(stunAddress);
}
channelNumber = ip2ChannelNumber[stunAddress.ToString()];
Console.WriteLine("RequestChannelBind: {0} {1}:{2}", channelNumber, stunAddress.ToString(), stunAddress.port);
channelNumber = (uint)(channelNumber << 16);
message.WriteString(STUNAttribute.Username, message.username);
message.WriteString(STUNAttribute.Realm, message.realm);
message.WriteUInt(STUNAttribute.ChannelNumber, channelNumber);
byte[] ret;
if (stunAddress.IsIPv4)
{
ret = new byte[8];
ret[1] = (byte)(0x01); // family
}
else
{
ret = new byte[16];
ret[1] = (byte)(0x02); // family
}
ret[0] = (byte)(0x0);
ret[3] = (byte)(stunAddress.port & 0xff);
ret[2] = (byte)((stunAddress.port >> 8) & 0xff);
ret[2] ^= transactionID[0];
ret[3] ^= transactionID[1];
for (int i = 0; i < stunAddress.address.Length; i++)
{
ret[4 + i] = (byte)(stunAddress.address[i] ^ transactionID[i]);
}
message.WriteBytes(STUNAttribute.XorPeerAddress, ret);
if (nonce != null)
{
message.WriteBytes(STUNAttribute.Nonce, nonce);
message.WriteRequestIntegrity();
}
byte[] pkg = message.WriteRequest();
sender.Send(pkg);
}
}
public void RequestAllocate()
{
if (++turnAllocateCount > 2)
{
return;
}
MessageSTUN message = CreateMessageSTUN(STUNMethod.AllocateRequest);
//message.WriteString(STUNAttribute.ServerName, "Coturn-4.5.1.1 'dan Eider'");
message.WriteString(STUNAttribute.Username, message.username);
message.WriteString(STUNAttribute.Realm, message.realm);
//message.WriteString(STUNAttribute.Password, message.password);
message.WriteUInt(STUNAttribute.Lifetime, lifeTime);
message.WriteEmpty(STUNAttribute.DontFragment);
message.WriteUInt(STUNAttribute.RequestedTransport, (uint)(17 << 24));//(uint)(17 << 24)
if (nonce != null)
{
message.WriteBytes(STUNAttribute.Nonce, nonce);
message.WriteRequestIntegrity();
}
byte[] pkg = message.WriteRequest();
sender.Send(pkg);
}
public void RequestCreatePermission(STUNAddress stunAddress)
{
lock (_lock)
{
MessageSTUN message = CreateMessageSTUN(STUNMethod.CreatePermissionRequest);
message.WriteString(STUNAttribute.Username, message.username);
message.WriteString(STUNAttribute.Realm, message.realm);
byte[] ret;
if (stunAddress.IsIPv4)
{
ret = new byte[8];
ret[1] = (byte)(0x01); // family
}
else
{
ret = new byte[16];
ret[1] = (byte)(0x02); // family
}
ret[0] = (byte)(0x0);
ushort xorFlag16 = (ushort)(magicCookie >> 16);
ret[3] = 0;
ret[2] = 0;
ret[2] ^= transactionID[0];
ret[3] ^= transactionID[1];
for (int i = 0; i < stunAddress.address.Length; i++)
{
ret[4 + i] = (byte)(stunAddress.address[i] ^ transactionID[i]);
}
message.WriteBytes(STUNAttribute.XorPeerAddress, ret);
if (nonce != null)
{
message.WriteBytes(STUNAttribute.Nonce, nonce);
message.WriteRequestIntegrity();
}
byte[] pkg = message.WriteRequest();
sender.Send(pkg);
}
}
public void RequestRefreshAllocationeLifeTime(uint lifetime)
{
MessageSTUN message = CreateMessageSTUN(STUNMethod.RefreshRequest);
message.WriteString(STUNAttribute.Username, message.username);
message.WriteString(STUNAttribute.Realm, message.realm);
message.WriteUInt(STUNAttribute.Lifetime, lifetime);
//message.WriteUInt(STUNAttribute.RequestedTransport, (uint)(17 << 24));
if (nonce != null)
{
message.WriteBytes(STUNAttribute.Nonce, nonce);
message.WriteRequestIntegrity();
}
byte[] pkg = message.WriteRequest();
sender.Send(pkg);
}