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selftest: packetdrill: Refine tcp_fastopen_server_reset-after-disconnect.pkt.

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These changes are applied to follow the imported packetdrill tests.

  * Call setsockopt(TCP_FASTOPEN)
  * Remove unnecessary accept() delay
  * Add assertion for TCP states
  * Rename to tcp_fastopen_server_trigger-rst-reconnect.pkt.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-12-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kuniyuki Iwashima
2025-09-29 18:41:39 -07:00
committed by Jakub Kicinski
parent 21f7fb31ae
commit be90c7b3d5
1 changed files with 7 additions and 3 deletions
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tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-after-disconnect.pkt → tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-reconnect.pkt
+7 -3
View File
@@ -1,26 +1,30 @@
// SPDX-License-Identifier: GPL-2.0
`./defaults.sh
./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x602 /proc/sys/net/ipv4/tcp_timestamps=0`
./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0`
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,nop,nop,sackOK>
+0 < S 0:10(10) win 32792 <mss 1460,nop,nop,sackOK,nop,nop,FO TFO_COOKIE>
+0 > S. 0:0(0) ack 11 win 65535 <mss 1460,nop,nop,sackOK>
// sk->sk_state is TCP_SYN_RECV
+.1 accept(3, ..., ...) = 4
+0 accept(3, ..., ...) = 4
+0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
// tcp_disconnect() sets sk->sk_state to TCP_CLOSE
+0 connect(4, AF_UNSPEC, ...) = 0
+0 > R. 1:1(0) ack 11 win 65535
+0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
// connect() sets sk->sk_state to TCP_SYN_SENT
+0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+0 connect(4, ..., ...) = -1 EINPROGRESS (Operation is now in progress)
+0 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+0 %{ assert tcpi_state == TCP_SYN_SENT, tcpi_state }%
// tp->fastopen_rsk must be NULL
+1 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>