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0b8f164eb2
This imports basic TFO server tests from google/packetdrill.
The repository has two versions of tests for most scenarios; one uses
the non-experimental option (34), and the other uses the experimental
option (255) with 0xF989.
This only imports the following tests of the non-experimental version
placed in [0]. I will add a specific test for the experimental option
handling later.
| TFO | Cookie | Payload |
---------------------------+-----+--------+---------+
basic-rw.pkt | yes | yes | yes |
basic-zero-payload.pkt | yes | yes | no |
basic-cookie-not-reqd.pkt | yes | no | yes |
basic-non-tfo-listener.pkt | no | yes | yes |
pure-syn-data.pkt | yes | no | yes |
The original pure-syn-data.pkt missed setsockopt(TCP_FASTOPEN) and did
not test TFO server in some scenarios unintentionally, so setsockopt()
is added where needed. In addition, non-TFO scenario is stripped as
it is covered by basic-non-tfo-listener.pkt. Also, I added basic- prefix.
Link: https://github.com/google/packetdrill/tree/bfc96251310f/gtests/net/tcp/fastopen/server/opt34 #[0]
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-5-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
27 lines
879 B
Plaintext
27 lines
879 B
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 zero-payload packet w/ valid TFO cookie - a TFO socket will
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// still be created and accepted but read() will not return until a
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// later pkt with 10 byte.
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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 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
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+0 > S. 0:0(0) ack 1 <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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// A TFO socket is created and is writable.
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+0 write(4, ..., 100) = 100
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+0 > P. 1:101(100) ack 1
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+0...0.300 read(4, ..., 512) = 10
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+.3 < P. 1:11(10) ack 1 win 5840
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