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@ -16,7 +16,8 @@ namespace i2p
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namespace stream
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{
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Stream::Stream (StreamingDestination * local, const i2p::data::LeaseSet * remote):
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m_SendStreamID (0), m_SequenceNumber (0), m_LocalDestination (local), m_RemoteLeaseSet (remote)
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m_SendStreamID (0), m_SequenceNumber (0), m_LastReceivedSequenceNumber (0),
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m_LocalDestination (local), m_RemoteLeaseSet (remote), m_OutboundTunnel (nullptr)
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{
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m_RecvStreamID = i2p::context.GetRandomNumberGenerator ().GenerateWord32 ();
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}
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@ -33,7 +34,8 @@ namespace stream
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buf += 4; // sendStreamID
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if (!m_SendStreamID)
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m_SendStreamID = be32toh (*(uint32_t *)buf);
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buf += 4; // receiveStreamID
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buf += 4; // receiveStreamID
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m_LastReceivedSequenceNumber = be32toh (*(uint32_t *)buf);
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buf += 4; // sequenceNum
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buf += 4; // ackThrough
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int nackCount = buf[0];
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@ -64,13 +66,15 @@ namespace stream
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LogPrint ("From identity");
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optionalData += sizeof (i2p::data::Identity);
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}
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// we have reached payload section
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std::string str((const char *)buf, end-buf);
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LogPrint ("Payload: ", str);
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packet->offset = buf - packet->buf;
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m_ReceiveQueue.Put (packet);
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SendQuickAck ();
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}
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size_t Stream::Send (uint8_t * buf, size_t len, int timeout)
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@ -105,17 +109,50 @@ namespace stream
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I2NPMessage * msg = i2p::garlic::routing.WrapSingleMessage (m_RemoteLeaseSet,
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CreateDataMessage (this, packet, size), m_LocalDestination->GetLeaseSet ());
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auto outbound = i2p::tunnel::tunnels.GetNextOutboundTunnel ();
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if (outbound)
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if (!m_OutboundTunnel)
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m_OutboundTunnel = i2p::tunnel::tunnels.GetNextOutboundTunnel ();
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if (m_OutboundTunnel)
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{
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auto& lease = m_RemoteLeaseSet->GetLeases ()[0]; // TODO:
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outbound->SendTunnelDataMsg (lease.tunnelGateway, lease.tunnelID, msg);
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m_OutboundTunnel->SendTunnelDataMsg (lease.tunnelGateway, lease.tunnelID, msg);
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}
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else
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DeleteI2NPMessage (msg);
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return len;
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}
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void Stream::SendQuickAck ()
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{
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uint8_t packet[STREAMING_MTU];
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size_t size = 0;
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*(uint32_t *)(packet + size) = htobe32 (m_SendStreamID);
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size += 4; // sendStreamID
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*(uint32_t *)(packet + size) = htobe32 (m_RecvStreamID);
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size += 4; // receiveStreamID
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*(uint32_t *)(packet + size) = 0; // this is plain Ack message
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size += 4; // sequenceNum
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*(uint32_t *)(packet + size) = htobe32 (m_LastReceivedSequenceNumber);
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size += 4; // ack Through
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packet[size] = 0;
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size++; // NACK count
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size++; // resend delay
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*(uint16_t *)(packet + size) = 0; // nof flags set
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size += 2; // flags
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*(uint16_t *)(packet + size) = 0; // nof flags set
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size += 2; // options size
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I2NPMessage * msg = i2p::garlic::routing.WrapSingleMessage (m_RemoteLeaseSet,
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CreateDataMessage (this, packet, size));
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if (m_OutboundTunnel)
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{
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auto& lease = m_RemoteLeaseSet->GetLeases ()[0]; // TODO:
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m_OutboundTunnel->SendTunnelDataMsg (lease.tunnelGateway, lease.tunnelID, msg);
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LogPrint ("Quick Ack sent");
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}
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else
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DeleteI2NPMessage (msg);
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}
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size_t Stream::Receive (uint8_t * buf, size_t len, int timeout)
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{
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if (m_ReceiveQueue.IsEmpty ())
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