diff options
| author |   Jianfeng Tan <henry.tjf@antfin.com> | 2019-11-18 06:59:50 +0000 |
|---|---|---|
| committer | Jianfeng Tan <henry.tjf@antfin.com> | 2020-03-05 01:31:33 +0800 |
| commit | 78c896b3b3127515478090c19447e27dc406427e (patch) | |
| tree | d6d67d4683e9ca0409f9984a834547a572fb5310 /test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt | |
| parent | e4380f4866091fd92a7a57667dd938a99144f9cd (diff) | |
TLDKv2dev-next-socket
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
Signed-off-by: Jielong Zhou <jielong.zjl@antfin.com>
Signed-off-by: Jian Zhang <wuzai.zj@antfin.com>
Signed-off-by: Chen Zhao <winters.zc@antfin.com>
Change-Id: I55c39de4c6cd30f991f35631eb507f770230f08e
Diffstat (limited to 'test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt')
| -rw-r--r-- | test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt b/test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt new file mode 100644 index 0000000..a8544f5 --- /dev/null +++ b/test/packetdrill/tests/linux/mss/mss-getsockopt-tcp_maxseg-client-ts.pkt @@ -0,0 +1,17 @@ +// Test that getsockopt of TCP_MAXSEG works on active/client TCP connections. +// In this variant we test that a simple query of segment size works, +// in the case where TCP timestamps reduce the usable payload space. + +// Create a socket. +0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0.100...0.200 connect(3, ..., ...) = 0 + +// Establish a connection. +0.100 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 6> +0.200 < S. 0:0(0) ack 1 win 32792 <mss 1100,sackOK,TS val 200 ecr 100,nop,wscale 7> +0.200 > . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 200> + +// Verify that the kernel reduced the returned segment size +// to account for TCP timestamps. +0.300 getsockopt(3, SOL_TCP, TCP_MAXSEG, [1088], [4]) = 0 |