[PATCH 6.6 295/299] selftests: mptcp: add mptcp_lib_get_counter

Greg Kroah-Hartman
2024-02-27T14:00:38Z

From: Geliang Tang <geliang.tang@suse.com>

commit 61c131f5d4d2b79904af2fdcb2839a9db8e7c55c upstream.

To avoid duplicated code in different MPTCP selftests, we can add
and use helpers defined in mptcp_lib.sh.

The helper get_counter() in mptcp_join.sh and get_mib_counter() in
mptcp_connect.sh have the same functionality, export get_counter() into
mptcp_lib.sh and rename it as mptcp_lib_get_counter(). Use this new
helper instead of get_counter() and get_mib_counter().

Use this helper in test_prio() in userspace_pm.sh too instead of
open-coding.

Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-11-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/testing/selftests/net/mptcp/mptcp_connect.sh | 41 +++------
tools/testing/selftests/net/mptcp/mptcp_join.sh | 88 ++++++++-------------
tools/testing/selftests/net/mptcp/mptcp_lib.sh | 16 +++
tools/testing/selftests/net/mptcp/userspace_pm.sh | 14 +--
4 files changed, 73 insertions(+), 86 deletions(-)

--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -341,21 +341,6 @@ do_ping()
return 0
}

-# $1: ns, $2: MIB counter
-get_mib_counter()
-{
- local listener_ns="${1}"
- local mib="${2}"
-
- # strip the header
- ip netns exec "${listener_ns}" \
- nstat -z -a "${mib}" | \
- tail -n+2 | \
- while read a count c rest; do
- echo $count
- done
-}
-
# $1: ns, $2: port
wait_local_port_listen()
{
@@ -441,12 +426,12 @@ do_transfer()
nstat -n
fi

- local stat_synrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
- local stat_ackrx_last_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
- local stat_cookietx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
- local stat_cookierx_last=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
- local stat_csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
- local stat_csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
+ local stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
+ local stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
+ local stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
+ local stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
+ local stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
+ local stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")

timeout ${timeout_test} \
ip netns exec ${listener_ns} \
@@ -509,11 +494,11 @@ do_transfer()
check_transfer $cin $sout "file received by server"
rets=$?

- local stat_synrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
- local stat_ackrx_now_l=$(get_mib_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
- local stat_cookietx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesSent")
- local stat_cookierx_now=$(get_mib_counter "${listener_ns}" "TcpExtSyncookiesRecv")
- local stat_ooo_now=$(get_mib_counter "${listener_ns}" "TcpExtTCPOFOQueue")
+ local stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
+ local stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
+ local stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
+ local stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
+ local stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue")

expect_synrx=$((stat_synrx_last_l))
expect_ackrx=$((stat_ackrx_last_l))
@@ -542,8 +527,8 @@ do_transfer()
fi

if $checksum; then
- local csum_err_s=$(get_mib_counter "${listener_ns}" "MPTcpExtDataCsumErr")
- local csum_err_c=$(get_mib_counter "${connector_ns}" "MPTcpExtDataCsumErr")
+ local csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
+ local csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")

local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
if [ $csum_err_s_nr -gt 0 ]; then
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -611,25 +611,9 @@ wait_local_port_listen()
done
}

-# $1: ns ; $2: counter
-get_counter()
-{
- local ns="${1}"
- local counter="${2}"
- local count
-
- count=$(ip netns exec ${ns} nstat -asz "${counter}" | awk 'NR==1 {next} {print $2}')
- if [ -z "${count}" ]; then
- mptcp_lib_fail_if_expected_feature "${counter} counter"
- return 1
- fi
-
- echo "${count}"
-}
-
rm_addr_count()
{
- get_counter "${1}" "MPTcpExtRmAddr"
+ mptcp_lib_get_counter "${1}" "MPTcpExtRmAddr"
}

# $1: ns, $2: old rm_addr counter in $ns
@@ -649,7 +633,7 @@ wait_rm_addr()

rm_sf_count()
{
- get_counter "${1}" "MPTcpExtRmSubflow"
+ mptcp_lib_get_counter "${1}" "MPTcpExtRmSubflow"
}

# $1: ns, $2: old rm_sf counter in $ns
@@ -672,11 +656,11 @@ wait_mpj()
local ns="${1}"
local cnt old_cnt

- old_cnt=$(get_counter ${ns} "MPTcpExtMPJoinAckRx")
+ old_cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")

local i
for i in $(seq 10); do
- cnt=$(get_counter ${ns} "MPTcpExtMPJoinAckRx")
+ cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
[ "$cnt" = "${old_cnt}" ] || break
sleep 0.1
done
@@ -1271,7 +1255,7 @@ chk_csum_nr()
fi

print_check "sum"
- count=$(get_counter ${ns1} "MPTcpExtDataCsumErr")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtDataCsumErr")
if [ "$count" != "$csum_ns1" ]; then
extra_msg="$extra_msg ns1=$count"
fi
@@ -1284,7 +1268,7 @@ chk_csum_nr()
print_ok
fi
print_check "csum"
- count=$(get_counter ${ns2} "MPTcpExtDataCsumErr")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtDataCsumErr")
if [ "$count" != "$csum_ns2" ]; then
extra_msg="$extra_msg ns2=$count"
fi
@@ -1328,7 +1312,7 @@ chk_fail_nr()
fi

print_check "ftx"
- count=$(get_counter ${ns_tx} "MPTcpExtMPFailTx")
+ count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFailTx")
if [ "$count" != "$fail_tx" ]; then
extra_msg="$extra_msg,tx=$count"
fi
@@ -1342,7 +1326,7 @@ chk_fail_nr()
fi

print_check "failrx"
- count=$(get_counter ${ns_rx} "MPTcpExtMPFailRx")
+ count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFailRx")
if [ "$count" != "$fail_rx" ]; then
extra_msg="$extra_msg,rx=$count"
fi
@@ -1375,7 +1359,7 @@ chk_fclose_nr()
fi

print_check "ctx"
- count=$(get_counter ${ns_tx} "MPTcpExtMPFastcloseTx")
+ count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFastcloseTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$fclose_tx" ]; then
@@ -1386,7 +1370,7 @@ chk_fclose_nr()
fi

print_check "fclzrx"
- count=$(get_counter ${ns_rx} "MPTcpExtMPFastcloseRx")
+ count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFastcloseRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$fclose_rx" ]; then
@@ -1416,7 +1400,7 @@ chk_rst_nr()
fi

print_check "rtx"
- count=$(get_counter ${ns_tx} "MPTcpExtMPRstTx")
+ count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPRstTx")
if [ -z "$count" ]; then
print_skip
# accept more rst than expected except if we don't expect any
@@ -1428,7 +1412,7 @@ chk_rst_nr()
fi

print_check "rstrx"
- count=$(get_counter ${ns_rx} "MPTcpExtMPRstRx")
+ count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPRstRx")
if [ -z "$count" ]; then
print_skip
# accept more rst than expected except if we don't expect any
@@ -1449,7 +1433,7 @@ chk_infi_nr()
local count

print_check "itx"
- count=$(get_counter ${ns2} "MPTcpExtInfiniteMapTx")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtInfiniteMapTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$infi_tx" ]; then
@@ -1459,7 +1443,7 @@ chk_infi_nr()
fi

print_check "infirx"
- count=$(get_counter ${ns1} "MPTcpExtInfiniteMapRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtInfiniteMapRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$infi_rx" ]; then
@@ -1488,7 +1472,7 @@ chk_join_nr()
fi

print_check "syn"
- count=$(get_counter ${ns1} "MPTcpExtMPJoinSynRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_nr" ]; then
@@ -1499,7 +1483,7 @@ chk_join_nr()

print_check "synack"
with_cookie=$(ip netns exec $ns2 sysctl -n net.ipv4.tcp_syncookies)
- count=$(get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_ack_nr" ]; then
@@ -1516,7 +1500,7 @@ chk_join_nr()
fi

print_check "ack"
- count=$(get_counter ${ns1} "MPTcpExtMPJoinAckRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$ack_nr" ]; then
@@ -1549,8 +1533,8 @@ chk_stale_nr()

print_check "stale"

- stale_nr=$(get_counter ${ns} "MPTcpExtSubflowStale")
- recover_nr=$(get_counter ${ns} "MPTcpExtSubflowRecover")
+ stale_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowStale")
+ recover_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowRecover")
if [ -z "$stale_nr" ] || [ -z "$recover_nr" ]; then
print_skip
elif [ $stale_nr -lt $stale_min ] ||
@@ -1587,7 +1571,7 @@ chk_add_nr()
timeout=$(ip netns exec $ns1 sysctl -n net.mptcp.add_addr_timeout)

print_check "add"
- count=$(get_counter ${ns2} "MPTcpExtAddAddr")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtAddAddr")
if [ -z "$count" ]; then
print_skip
# if the test configured a short timeout tolerate greater then expected
@@ -1599,7 +1583,7 @@ chk_add_nr()
fi

print_check "echo"
- count=$(get_counter ${ns1} "MPTcpExtEchoAdd")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtEchoAdd")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$echo_nr" ]; then
@@ -1610,7 +1594,7 @@ chk_add_nr()

if [ $port_nr -gt 0 ]; then
print_check "pt"
- count=$(get_counter ${ns2} "MPTcpExtPortAdd")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtPortAdd")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$port_nr" ]; then
@@ -1620,7 +1604,7 @@ chk_add_nr()
fi

print_check "syn"
- count=$(get_counter ${ns1} "MPTcpExtMPJoinPortSynRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinPortSynRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_nr" ]; then
@@ -1631,7 +1615,7 @@ chk_add_nr()
fi

print_check "synack"
- count=$(get_counter ${ns2} "MPTcpExtMPJoinPortSynAckRx")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinPortSynAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_ack_nr" ]; then
@@ -1642,7 +1626,7 @@ chk_add_nr()
fi

print_check "ack"
- count=$(get_counter ${ns1} "MPTcpExtMPJoinPortAckRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinPortAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$ack_nr" ]; then
@@ -1653,7 +1637,7 @@ chk_add_nr()
fi

print_check "syn"
- count=$(get_counter ${ns1} "MPTcpExtMismatchPortSynRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMismatchPortSynRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mis_syn_nr" ]; then
@@ -1664,7 +1648,7 @@ chk_add_nr()
fi

print_check "ack"
- count=$(get_counter ${ns1} "MPTcpExtMismatchPortAckRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMismatchPortAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mis_ack_nr" ]; then
@@ -1686,7 +1670,7 @@ chk_add_tx_nr()
timeout=$(ip netns exec $ns1 sysctl -n net.mptcp.add_addr_timeout)

print_check "add TX"
- count=$(get_counter ${ns1} "MPTcpExtAddAddrTx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtAddAddrTx")
if [ -z "$count" ]; then
print_skip
# if the test configured a short timeout tolerate greater then expected
@@ -1698,7 +1682,7 @@ chk_add_tx_nr()
fi

print_check "echo TX"
- count=$(get_counter ${ns2} "MPTcpExtEchoAddTx")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtEchoAddTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$echo_tx_nr" ]; then
@@ -1736,7 +1720,7 @@ chk_rm_nr()
fi

print_check "rm"
- count=$(get_counter ${addr_ns} "MPTcpExtRmAddr")
+ count=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmAddr")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$rm_addr_nr" ]; then
@@ -1746,13 +1730,13 @@ chk_rm_nr()
fi

print_check "rmsf"
- count=$(get_counter ${subflow_ns} "MPTcpExtRmSubflow")
+ count=$(mptcp_lib_get_counter ${subflow_ns} "MPTcpExtRmSubflow")
if [ -z "$count" ]; then
print_skip
elif [ -n "$simult" ]; then
local cnt suffix

- cnt=$(get_counter ${addr_ns} "MPTcpExtRmSubflow")
+ cnt=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmSubflow")

# in case of simult flush, the subflow removal count on each side is
# unreliable
@@ -1778,7 +1762,7 @@ chk_rm_tx_nr()
local rm_addr_tx_nr=$1

print_check "rm TX"
- count=$(get_counter ${ns2} "MPTcpExtRmAddrTx")
+ count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtRmAddrTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$rm_addr_tx_nr" ]; then
@@ -1795,7 +1779,7 @@ chk_prio_nr()
local count

print_check "ptx"
- count=$(get_counter ${ns1} "MPTcpExtMPPrioTx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mp_prio_nr_tx" ]; then
@@ -1805,7 +1789,7 @@ chk_prio_nr()
fi

print_check "prx"
- count=$(get_counter ${ns1} "MPTcpExtMPPrioRx")
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mp_prio_nr_rx" ]; then
@@ -1905,7 +1889,7 @@ wait_attempt_fail()
while [ $time -lt $timeout_ms ]; do
local cnt

- cnt=$(get_counter ${ns} "TcpAttemptFails")
+ cnt=$(mptcp_lib_get_counter ${ns} "TcpAttemptFails")

[ "$cnt" = 1 ] && return 1
time=$((time + 100))
--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -216,3 +216,19 @@ mptcp_lib_kill_wait() {
kill "${1}" > /dev/null 2>&1
wait "${1}" 2>/dev/null
}
+
+# $1: ns, $2: MIB counter
+mptcp_lib_get_counter() {
+ local ns="${1}"
+ local counter="${2}"
+ local count
+
+ count=$(ip netns exec "${ns}" nstat -asz "${counter}" |
+ awk 'NR==1 {next} {print $2}')
+ if [ -z "${count}" ]; then
+ mptcp_lib_fail_if_expected_feature "${counter} counter"
+ return 1
+ fi
+
+ echo "${count}"
+}
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -887,9 +887,10 @@ test_prio()

# Check TX
print_test "MP_PRIO TX"
- count=$(ip netns exec "$ns2" nstat -as | grep MPTcpExtMPPrioTx | awk '{print $2}')
- [ -z "$count" ] && count=0
- if [ $count != 1 ]; then
+ count=$(mptcp_lib_get_counter "$ns2" "MPTcpExtMPPrioTx")
+ if [ -z "$count" ]; then
+ test_skip
+ elif [ $count != 1 ]; then
test_fail "Count != 1: ${count}"
else
test_pass
@@ -897,9 +898,10 @@ test_prio()

# Check RX
print_test "MP_PRIO RX"
- count=$(ip netns exec "$ns1" nstat -as | grep MPTcpExtMPPrioRx | awk '{print $2}')
- [ -z "$count" ] && count=0
- if [ $count != 1 ]; then
+ count=$(mptcp_lib_get_counter "$ns1" "MPTcpExtMPPrioRx")
+ if [ -z "$count" ]; then
+ test_skip
+ elif [ $count != 1 ]; then
test_fail "Count != 1: ${count}"
else
test_pass