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tcp: Add assert to check if TCP sends out-of-window data

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This commit is contained in:
Xiuchao Wu
2020-06-14 11:56:57 -07:00
committed by Tom Henderson
parent c9b96134b1
commit 07d89d3bfa
1 changed files with 4 additions and 0 deletions
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4
src/internet/model/tcp-socket-base.cc
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@@ -2929,6 +2929,10 @@ TcpSocketBase::SendDataPacket (SequenceNumber32 seq, uint32_t maxSize, bool with
uint8_t flags = withAck ? TcpHeader::ACK : 0;
uint32_t remainingData = m_txBuffer->SizeFromSequence (seq + SequenceNumber32 (sz));
// TCP sender should not send data out of the window advertised by the
// peer when it is not retransmission.
NS_ASSERT (isRetransmission || ((m_highRxAckMark + SequenceNumber32 (m_rWnd)) >= (seq + SequenceNumber32 (maxSize))));
if (m_tcb->m_pacing)
{
NS_LOG_INFO ("Pacing is enabled");