xref: /linux/tools/testing/selftests/net/packetdrill/tcp_accecn_negotiation_optenable.pkt (revision c17ee635fd3a482b2ad2bf5e269755c2eae5f25e) 
1*f85d9c45SChia-Yu Chang// Test basic AccECN negotiation, late option enable
2*f85d9c45SChia-Yu Chang
3*f85d9c45SChia-Yu Chang`./defaults.sh
4*f85d9c45SChia-Yu Changsysctl -q net.ipv4.tcp_ecn=3
5*f85d9c45SChia-Yu Chang`
6*f85d9c45SChia-Yu Chang
7*f85d9c45SChia-Yu Chang    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
8*f85d9c45SChia-Yu Chang+.002 ... 0.052 connect(4, ..., ...) = 0
9*f85d9c45SChia-Yu Chang
10*f85d9c45SChia-Yu Chang+.002 > SEWA 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
11*f85d9c45SChia-Yu Chang+0.05 < SW. 0:0(0) ack 1 win 32767 <mss 1460,nop,nop,sackOK,nop,wscale 8>
12*f85d9c45SChia-Yu Chang+.002 > [ect0] W. 1:1(0) ack 1
13*f85d9c45SChia-Yu Chang
14*f85d9c45SChia-Yu Chang+0.01 write(4, ..., 1000) = 1000
15*f85d9c45SChia-Yu Chang+.002 > [ect0] EAP. 1:1001(1000) ack 1
16*f85d9c45SChia-Yu Chang+.05 < [ect0] EAP. 1:1(0) ack 1001 win 256 <ECN e0b 1001 ceb 0 e1b 1,nop>
17*f85d9c45SChia-Yu Chang
18*f85d9c45SChia-Yu Chang+0.01 %{ assert tcpi_delivered_ce == 0, tcpi_delivered_ce }%
19*f85d9c45SChia-Yu Chang
20*f85d9c45SChia-Yu Chang+0.01 write(4, ..., 1000) = 1000
21*f85d9c45SChia-Yu Chang+.002 > [ect0] EAP. 1001:2001(1000) ack 1 <ECN e1b 1 ceb 0 e0b 1,nop>
22*f85d9c45SChia-Yu Chang
23*f85d9c45SChia-Yu Chang+0.01 %{ assert tcpi_delivered_ce == 0, tcpi_delivered_ce }%
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