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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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88395c071f
Same as initial tests, import verbatim from github.com/google/packetdrill, aside from: - update `source ./defaults.sh` path to adjust for flat dir - add SPDX headers - remove author statements if any - drop blank lines at EOF Same test process as previous tests. Both with and without debug mode. Recording the steps once: make mrproper vng --build \ --config tools/testing/selftests/net/packetdrill/config \ --config kernel/configs/debug.config vng -v --run . --user root --cpus 4 -- \ make -C tools/testing/selftests TARGETS=net/packetdrill run_tests Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Soham Chakradeo <sohamch@google.com> Link: https://patch.msgid.link/20241217185203.297935-2-sohamch.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
55 lines
1.8 KiB
Plaintext
55 lines
1.8 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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// Test rwnd limited time in tcp_info for client side.
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`./defaults.sh`
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// Create a socket and set it to non-blocking.
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0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
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+0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
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+0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
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+0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
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+0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
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// Server advertises 0 receive window.
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+.01 < S. 0:0(0) ack 1 win 0 <mss 1000,nop,nop,sackOK>
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+0 > . 1:1(0) ack 1
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+0 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
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+0 fcntl(3, F_SETFL, O_RDWR) = 0 // set back to blocking
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// Make sure that initial rwnd limited time is 0.
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+0 %{ assert tcpi_rwnd_limited == 0, tcpi_rwnd_limited }%
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// Receive window limited time starts here.
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+0 write(3, ..., 1000) = 1000
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// Check that rwnd limited time in tcp_info is around 0.1s.
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+.1 %{ assert 98000 <= tcpi_rwnd_limited <= 110000, tcpi_rwnd_limited }%
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// Server opens the receive window.
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+.1 < . 1:1(0) ack 1 win 2000
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// Check that rwnd limited time in tcp_info is around 0.2s.
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+0 %{ assert 198000 <= tcpi_rwnd_limited <= 210000, tcpi_rwnd_limited }%
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+0 > P. 1:1001(1000) ack 1
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// Server advertises a very small receive window.
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+.03 < . 1:1(0) ack 1001 win 10
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// Receive window limited time starts again.
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+0 write(3, ..., 1000) = 1000
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// Server opens the receive window again.
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+.1 < . 1:1(0) ack 1001 win 2000
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// Check that rwnd limited time in tcp_info is around 0.3s
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// and busy time is 0.3 + 0.03 (server opened small window temporarily).
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+0 %{ assert 298000 <= tcpi_rwnd_limited <= 310000, tcpi_rwnd_limited;\
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assert 328000 <= tcpi_busy_time <= 340000, tcpi_busy_time;\
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}%
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+0 > P. 1001:2001(1000) ack 1
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+.02 < . 1:1(0) ack 2001 win 2000
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+0 %{ assert 348000 <= tcpi_busy_time <= 360000, tcpi_busy_time }%
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