33 lines
1.1 KiB
Plaintext
33 lines
1.1 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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//
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// Basic TFO server test
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//
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// Test TFO_SERVER_COOKIE_NOT_REQD flag on receiving
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// SYN with data but without Fast Open cookie option.
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`./defaults.sh
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./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x202`
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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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// Since TFO_SERVER_COOKIE_NOT_REQD, a TFO socket will be created with
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// the data accepted.
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+0 < S 0:1000(1000) win 32792 <mss 1460,sackOK,nop,nop>
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+0 > S. 0:0(0) ack 1001 <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 read(4, ..., 1024) = 1000
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// Data After SYN will be accepted too.
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+0 < . 1001:2001(1000) ack 1 win 5840
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+0 > . 1:1(0) ack 2001
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// Should change the implementation later to set the SYN flag as well.
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+0 read(4, ..., 1024) = 1000
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+0 write(4, ..., 1000) = 1000
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+0 > P. 1:1001(1000) ack 2001
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