| // SPDX-License-Identifier: GPL-2.0 |
| // |
| // Send a FIN pkt with the ACK bit to a TFO socket. |
| // The socket will go to TCP_CLOSE_WAIT state and data can be |
| // read until the socket is closed, at which time a FIN will be sent. |
| |
| `./defaults.sh` |
| |
| 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 |
| +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 |
| +0 bind(3, ..., ...) = 0 |
| +0 listen(3, 1) = 0 |
| +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 |
| |
| +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop> |
| +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK> |
| |
| // FIN is acked and the socket goes to TCP_CLOSE_WAIT state |
| // in tcp_fin() called from tcp_data_queue(). |
| +0 < F. 11:11(0) ack 1 win 32792 |
| +0 > . 1:1(0) ack 12 |
| |
| +0 accept(3, ..., ...) = 4 |
| +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }% |
| +0 %{ assert tcpi_state == TCP_CLOSE_WAIT, tcpi_state }% |
| |
| +0 read(4, ..., 512) = 10 |
| +0 close(4) = 0 |
| +0 > F. 1:1(0) ack 12 |
| * > F. 1:1(0) ack 12 |
