diff options
Diffstat (limited to 'tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt')
| -rw-r--r-- | tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt b/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt new file mode 100644 index 000000000000..84d94780e6be --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: GPL-2.0 +// Test tx timestamping for server-side (IPv4). +`./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 + +0 setsockopt(4, 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 + +// Write two 2KB chunks. +// setsockopt(..., [SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_OPT_ID], ...) +// is called after when SYN is acked. So, we expect the last byte of the first +// and the second chunks to have timestamp keys of 1999 (i.e., 2000 - 1) and +// 3999 (i.e., 4000 - 1) respectively. + +0 write(4, ..., 2000) = 2000 + +0 write(4, ..., 2000) = 2000 + +0 > P. 1:2001(2000) ack 1 + +0 > P. 2001:4001(2000) ack 1 + +.01 < . 1:1(0) ack 2001 win 514 + +.01 < . 1:1(0) ack 4001 win 514 + +// 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 write at t=10ms. + +0 recvmsg(4, {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=10000000}}, + {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=1999}} + ]}, MSG_ERRQUEUE) = 0 +// SCM_TSTAMP_SND for the first chunk should be received almost immediately +// after write at t=10ms. + +0 recvmsg(4, {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=10000000}}, + {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=1999}} + ]}, MSG_ERRQUEUE) = 0 +// SCM_TSTAMP_SCHED for the second chunk should be received almost immediately +// after that at t=10ms. + +0 recvmsg(4, {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=10000000}}, + {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=3999}} + ]}, MSG_ERRQUEUE) = 0 +// SCM_TSTAMP_SND for the second chunk should be received almost immediately +// after that at t=10ms. + +0 recvmsg(4, {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=10000000}}, + {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=3999}} + ]}, MSG_ERRQUEUE) = 0 +// SCM_TSTAMP_ACK for the first chunk should be received at t=20ms. + +0 recvmsg(4, {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_ACK, + ee_data=1999}} + ]}, MSG_ERRQUEUE) = 0 +// SCM_TSTAMP_ACK for the second chunk should be received at t=30ms. + +0 recvmsg(4, {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=3999}} + ]}, MSG_ERRQUEUE) = 0 |