async Task <HandshakeResult> WaitHandshakeAccept()
{
while (true)
{
var receive = await m_Socket.ReceiveAsync();
var buf = receive.Buffer;
int size = buf.Length;
if (size == 0 || buf[0] != (byte)PeerToPeerAccept.Type)
{
continue;
}
int offset = 5;
int nonce = BinaryUtil.ReadInt(buf, ref offset);
EncryptorKey key = default;
key.Cookie = m_Cookie;
key.MajorVersion = Protocol.MajorVersion;
key.MinorVersion = Protocol.MinorVersion;
key.Nonce = nonce;
key.ConnectionId = m_SelfId;
key.Random = new ArraySegment <byte>(m_Randam);
var encryptor = m_EncryptorGenerator.Generate(in key);
if (!PeerToPeerAccept.TryUnpack(buf, size, encryptor, out var packet))
{
throw new Exception("fail unpack HandshakeAccept");
}
m_RemoteEP = receive.RemoteEndPoint;
return(new HandshakeResult(encryptor, packet.GetPeerToPeerList()));
}
}
public bool OnHandshakeAccept(byte[] buf, int size, out PeerEntry peer, IPEndPoint remoteEP)
{
if (size < 9)
{
peer = null;
return(false);
}
int offset = 5;
int nonce = BinaryUtil.ReadInt(buf, ref offset);
var key = new EncryptorKey(m_Request, m_Info.Randam, nonce);
var encryptor = m_Connection.m_EncryptorGenerator.Generate(key);
if (!PeerToPeerAccept.TryUnpack(buf, size, encryptor, out var packet))
{
peer = null;
return(false);
}
peer = new PeerEntry(packet.ConnectionId, nonce, encryptor, remoteEP);
return(true);
}