diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-09-27 21:29:45 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-29 18:41:39 -0700 |
| commit | 5ed080f85a33ad76288711c64ec2d8699de65ff9 (patch) | |
| tree | b77b81052d6bd174102ecb7e7a9b2e0d4c779005 | |
| parent | e57b3933abcec26255fd9b4405badfc22af67da2 (diff) | |
selftest: packetdrill: Import opt34/fin-close-socket.pkt.
This imports the non-experimental version of fin-close-socket.pkt.
This file tests the scenario where a TFO child socket's state
transitions from SYN_RECV to CLOSE_WAIT before accept()ed.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-8-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt new file mode 100644 index 000000000000..dc09f8d9a381 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt @@ -0,0 +1,30 @@ +// 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 |