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Use the standard import and testing method, as described in the import of tcp/ecn and tcp/close , tcp/sack , tcp/tcp_info. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Soham Chakradeo <sohamch@google.com> Link: https://patch.msgid.link/20241217185203.297935-4-sohamch.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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// Test TCP does not append any data from consequent writes to the tail
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// skb created for the chunk. The large chunk itself should be packetized as
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// usual.
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`./defaults.sh
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`
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// Initialize connection
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0 socket(..., SOCK_STREAM, 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 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
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+0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
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+.01 < . 1:1(0) ack 1 win 514
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+0 accept(3, ..., ...) = 4
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// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on
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// the tail.
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+0 write(4, ..., 10400) = 10400
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// Write another 10040B chunk with no coalescing options.
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+0 send(4, ..., 10400, MSG_EOR) = 10400
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// Write a 2KB chunk. This chunk should not be appended to the packets created
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// the previous chunk.
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+0 write(4, ..., 2000) = 2000
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+0 > P. 1:10001(10000) ack 1
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+.001 < . 1:1(0) ack 10001 win 514
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// Now we have enough room to send out the 2 x 400B packets out.
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+0 > P. 10001:20801(10800) ack 1
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+.001 < . 1:1(0) ack 20801 win 514
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// This 2KB packet should be sent alone.
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+0 > P. 20801:22801(2000) ack 1
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+.001 < . 1:1(0) ack 22801 win 514
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