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21f7fb31ae
This imports the non-experimental version of opt34/*-trigger-rst.pkt.
| accept() | SYN data |
-----------------------------------+----------+----------+
listener-closed-trigger-rst.pkt | no | unread |
unread-data-closed-trigger-rst.pkt | yes | unread |
Both files test that close()ing a SYN_RECV socket with unread SYN data
triggers RST.
The files are renamed to have the common prefix, trigger-rst.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-11-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
24 lines
735 B
Plaintext
24 lines
735 B
Plaintext
// SPDX-License-Identifier: GPL-2.0
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//
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// Close a TFO socket with unread data.
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// This will trigger a RST pkt.
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`./defaults.sh`
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0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
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+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
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+0 bind(3, ..., ...) = 0
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+0 listen(3, 1) = 0
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+0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
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+0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
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+0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
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+0 accept(3, ..., ...) = 4
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+0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
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+0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
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// data_was_unread == true in __tcp_close()
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+0 close(4) = 0
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+0 > R. 1:1(0) ack 11
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