| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- // 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
|
