diff options
Diffstat (limited to 'tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt')
| -rw-r--r-- | tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt new file mode 100644 index 000000000000..77039c5aac39 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +// Test TCP does not append any data from consequent writes to the tail +// skb created for the chunk. +`./defaults.sh +` + +// Initialize connection + 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8> + +.01 < . 1:1(0) ack 1 win 514 + + +0 accept(3, ..., ...) = 4 + +// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on +// the tail. + +0 write(4, ..., 10400) = 10400 + +// Write a 400B chunk with no coalescing options. + +0 send(4, ..., 400, MSG_EOR) = 400 + +// This chunk should not be appended to the skbs created for the previous chunk. + +0 write(4, ..., 10000) = 10000 + + +0 > P. 1:10001(10000) ack 1 ++.001 < . 1:1(0) ack 10001 win 514 +// Now we have enough room to send out the 2 x 400B packets out. + +0 > P. 10001:10801(800) ack 1 + +0 > P. 10801:20801(10000) ack 1 ++.001 < . 1:1(0) ack 10401 win 514 ++.001 < . 1:1(0) ack 10801 win 514 ++.001 < . 1:1(0) ack 20801 win 514 |