mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-08-16 19:16:56 +00:00
eab35989cc
Use the standard import and testing method, as described in the import of tcp/ecn , 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/20241217185203.297935-3-sohamch.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
92 lines
3.3 KiB
Plaintext
92 lines
3.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
|
|
// Test tx timestamping for partial writes (IPv4).
|
|
`./defaults.sh
|
|
`
|
|
|
|
// Create a socket and set it to non-blocking.
|
|
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
|
|
+0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
|
|
+0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
|
|
|
|
// Establish connection and verify that there was no error.
|
|
+0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
|
|
+0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
|
|
+.01 < S. 0:0(0) ack 1 win 2000 <mss 1000,sackOK,TS val 700 ecr 100,nop,wscale 7>
|
|
+0 > . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 700>
|
|
+0 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
|
|
|
|
+0 setsockopt(3, SOL_SOCKET, SO_SNDBUF, [1000], 4) = 0
|
|
+0 setsockopt(3, SOL_SOCKET, SO_TIMESTAMPING,
|
|
[SOF_TIMESTAMPING_TX_SCHED | SOF_TIMESTAMPING_TX_SOFTWARE |
|
|
SOF_TIMESTAMPING_TX_ACK | SOF_TIMESTAMPING_SOFTWARE |
|
|
SOF_TIMESTAMPING_OPT_ID], 4) = 0
|
|
|
|
// We have a partial write.
|
|
+0 write(3, ..., 10000) = 2964
|
|
+0 > . 1:989(988) ack 1 <nop,nop,TS val 110 ecr 700>
|
|
+0 > P. 989:1977(988) ack 1 <nop,nop,TS val 110 ecr 700>
|
|
+.01 < . 1:1(0) ack 1977 win 92 <nop,nop,TS val 800 ecr 200>
|
|
+0 > P. 1977:2965(988) ack 1 <nop,nop,TS val 114 ecr 800>
|
|
+.01 < . 1:1(0) ack 2965 win 92 <nop,nop,TS val 800 ecr 200>
|
|
|
|
// Make sure that internal TCP timestamps are not overwritten and we have sane
|
|
// RTT measurement.
|
|
+0 %{
|
|
assert 5000 <= tcpi_rtt <= 20000, 'srtt=%d us' % tcpi_rtt
|
|
}%
|
|
|
|
// SCM_TSTAMP_SCHED for the first chunk should be received almost immediately
|
|
// after the first ack at t=20ms.
|
|
+0 recvmsg(3, {msg_name(...)=...,
|
|
msg_iov(1)=[{...,0}],
|
|
msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
|
|
msg_control=[
|
|
{cmsg_level=SOL_SOCKET,
|
|
cmsg_type=SCM_TIMESTAMPING,
|
|
cmsg_data={scm_sec=0,scm_nsec=20000000}},
|
|
{cmsg_level=CMSG_LEVEL_IP,
|
|
cmsg_type=CMSG_TYPE_RECVERR,
|
|
cmsg_data={ee_errno=ENOMSG,
|
|
ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
|
|
ee_type=0,
|
|
ee_code=0,
|
|
ee_info=SCM_TSTAMP_SCHED,
|
|
ee_data=2963}}
|
|
]}, MSG_ERRQUEUE) = 0
|
|
// SCM_TSTAMP_SND for the first chunk should be received almost immediately
|
|
// after the first ack at t=20ms.
|
|
+0 recvmsg(3, {msg_name(...)=...,
|
|
msg_iov(1)=[{...,0}],
|
|
msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
|
|
msg_control=[
|
|
{cmsg_level=SOL_SOCKET,
|
|
cmsg_type=SCM_TIMESTAMPING,
|
|
cmsg_data={scm_sec=0,scm_nsec=20000000}},
|
|
{cmsg_level=CMSG_LEVEL_IP,
|
|
cmsg_type=CMSG_TYPE_RECVERR,
|
|
cmsg_data={ee_errno=ENOMSG,
|
|
ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
|
|
ee_type=0,
|
|
ee_code=0,
|
|
ee_info=SCM_TSTAMP_SND,
|
|
ee_data=2963}}
|
|
]}, MSG_ERRQUEUE) = 0
|
|
// SCM_TSTAMP_ACK for the first chunk should be received after the last ack at
|
|
// t=30ms.
|
|
+0 recvmsg(3, {msg_name(...)=...,
|
|
msg_iov(1)=[{...,0}],
|
|
msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
|
|
msg_control=[
|
|
{cmsg_level=SOL_SOCKET,
|
|
cmsg_type=SCM_TIMESTAMPING,
|
|
cmsg_data={scm_sec=0,scm_nsec=30000000}},
|
|
{cmsg_level=CMSG_LEVEL_IP,
|
|
cmsg_type=CMSG_TYPE_RECVERR,
|
|
cmsg_data={ee_errno=ENOMSG,
|
|
ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
|
|
ee_type=0,
|
|
ee_code=0,
|
|
ee_info=SCM_TSTAMP_ACK,
|
|
ee_data=2963}}
|
|
]}, MSG_ERRQUEUE) = 0
|