Now, I'am searching the TCP stack of VPP 19.04, and have a doubt, please look
following comment in line.
tcp46_rcv_process_inline
{
...
/* 5: check the ACK field */
...
case TCP_STATE_CLOSE_WAIT:
/* Do the same processing as for the ESTABLISHED state. */
if (tcp_rcv_ack (wrk, tc0, b0, tcp0, &error0))
goto drop;
if (!(tc0->flags & TCP_CONN_FINPNDG))
break;
/* Still have outstanding tx data */
if (transport_max_tx_dequeue (&tc0->connection)) <--------Here, I think
should check burst_acked as TCP_STATE_FIN_WAIT_1 do.
break;
tcp_send_fin (tc0);
tcp_connection_timers_reset (tc0);
tcp_connection_set_state (tc0, TCP_STATE_LAST_ACK);
tcp_timer_set (tc0, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
break;
...
}
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