diff mbox series

[net-next,7/9] selftests: mptcp: join: skip check if MIB counter not supported (part 2)

Message ID 20230620-upstream-net-next-20230620-mptcp-expose-more-info-and-misc-v1-7-62b9444bfd48@tessares.net (mailing list archive)
State Accepted
Commit 00079f18c24f373797cc38273c1bc0b475469d2b
Delegated to: Netdev Maintainers
Headers show
Series mptcp: expose more info and small improvements | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success net selftest script(s) already in Makefile
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch warning WARNING: line length of 109 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Matthieu Baerts June 20, 2023, 4:30 p.m. UTC
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

One of them is the MPTCP MIB counters introduced in commit fc518953bc9c
("mptcp: add and use MIB counter infrastructure") and more later. The
MPTCP Join selftest heavily relies on these counters.

If a counter is not supported by the kernel, it is not displayed when
using 'nstat -z'. We can then detect that and skip the verification. A
new helper (get_counter()) has been added recently in the -net tree to
do the required checks and return an error if the counter is not
available.

This commit is similar to the one with the same title applied in the
-net tree but it modifies code only present in net-next for the moment,
see the Fixes commit below.

While at it, we can also remove the use of ${extra_msg} variable which
is never assigned in chk_rm_tx_nr() function and use 'echo' without '-n'
parameter.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 0639fa230a21 ("selftests: mptcp: add explicit check for new mibs")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 33 +++++++++++++------------
 1 file changed, 17 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 1b68fe1c0885..a7973d6a40a0 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -1683,12 +1683,12 @@  chk_add_tx_nr()
 	timeout=$(ip netns exec $ns1 sysctl -n net.mptcp.add_addr_timeout)
 
 	printf "%-${nr_blank}s %s" " " "add TX"
-	count=$(ip netns exec $ns1 nstat -as MPTcpExtAddAddrTx | grep MPTcpExtAddAddrTx | awk '{print $2}')
-	[ -z "$count" ] && count=0
-
+	count=$(get_counter ${ns1} "MPTcpExtAddAddrTx")
+	if [ -z "$count" ]; then
+		echo -n "[skip]"
 	# if the test configured a short timeout tolerate greater then expected
 	# add addrs options, due to retransmissions
-	if [ "$count" != "$add_tx_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_tx_nr" ]; }; then
+	elif [ "$count" != "$add_tx_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_tx_nr" ]; }; then
 		echo "[fail] got $count ADD_ADDR[s] TX, expected $add_tx_nr"
 		fail_test
 	else
@@ -1696,9 +1696,10 @@  chk_add_tx_nr()
 	fi
 
 	echo -n " - echo TX "
-	count=$(ip netns exec $ns2 nstat -as MPTcpExtEchoAddTx | grep MPTcpExtEchoAddTx | awk '{print $2}')
-	[ -z "$count" ] && count=0
-	if [ "$count" != "$echo_tx_nr" ]; then
+	count=$(get_counter ${ns2} "MPTcpExtEchoAddTx")
+	if [ -z "$count" ]; then
+		echo "[skip]"
+	elif [ "$count" != "$echo_tx_nr" ]; then
 		echo "[fail] got $count ADD_ADDR echo[s] TX, expected $echo_tx_nr"
 		fail_test
 	else
@@ -1734,9 +1735,10 @@  chk_rm_nr()
 	fi
 
 	printf "%-${nr_blank}s %s" " " "rm "
-	count=$(ip netns exec $addr_ns nstat -as MPTcpExtRmAddr | grep MPTcpExtRmAddr | awk '{print $2}')
-	[ -z "$count" ] && count=0
-	if [ "$count" != "$rm_addr_nr" ]; then
+	count=$(get_counter ${addr_ns} "MPTcpExtRmAddr")
+	if [ -z "$count" ]; then
+		echo -n "[skip]"
+	elif [ "$count" != "$rm_addr_nr" ]; then
 		echo "[fail] got $count RM_ADDR[s] expected $rm_addr_nr"
 		fail_test
 	else
@@ -1778,16 +1780,15 @@  chk_rm_tx_nr()
 	local rm_addr_tx_nr=$1
 
 	printf "%-${nr_blank}s %s" " " "rm TX "
-	count=$(ip netns exec $ns2 nstat -as MPTcpExtRmAddrTx | grep MPTcpExtRmAddrTx | awk '{print $2}')
-	[ -z "$count" ] && count=0
-	if [ "$count" != "$rm_addr_tx_nr" ]; then
+	count=$(get_counter ${ns2} "MPTcpExtRmAddrTx")
+	if [ -z "$count" ]; then
+		echo "[skip]"
+	elif [ "$count" != "$rm_addr_tx_nr" ]; then
 		echo "[fail] got $count RM_ADDR[s] expected $rm_addr_tx_nr"
 		fail_test
 	else
-		echo -n "[ ok ]"
+		echo "[ ok ]"
 	fi
-
-	echo "$extra_msg"
 }
 
 chk_prio_nr()