51 lines
2.0 KiB
Plaintext
51 lines
2.0 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 that TFO-enabled server would not respond SYN-ACK with any TFO option
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// when receiving a pure SYN-data. It should respond a pure SYN-ack.
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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 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
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+0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
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+0 < . 1:1(0) ack 1 win 100
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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 close(3) = 0
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// Test ECN-setup SYN with ECN disabled because this has happened in reality
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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 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
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+0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
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+0 < . 1:1(0) ack 1 win 100
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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 close(3) = 0
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// Test ECN-setup SYN w/ ECN enabled
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+0 `sysctl -q net.ipv4.tcp_ecn=2`
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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 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
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+0 > SE. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
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+0 < . 1:1(0) ack 1 win 100
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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 close(3) = 0
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