netdev - [PATCH net-next 04/11] selftests: mptcp: netlink: add 'limits' helpers

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Message-Id: <20240405-upstream-net-next-20240405-mptcp-selftests-refactoring-v1-4-eabc9b960966@kernel.org>
Date: Fri, 05 Apr 2024 12:52:08 +0200
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, 
 Geliang Tang <geliang@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc: netdev@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, 
 Geliang Tang <tanggeliang@...inos.cn>
Subject: [PATCH net-next 04/11] selftests: mptcp: netlink: add 'limits'
 helpers

From: Geliang Tang <tanggeliang@...inos.cn>

The output format of 'ip mptcp limits' command is much different from
that of 'pm_nl_ctl limits' command.

This patch adds format_limits() helper to format the outputs of these
two commands to hide the difference. get_limits() has been added to show
the limits.

Use these two helpers in pm_netlink.sh to replace all 'pm_nl_ctl limits'
commands and outputs.

Signed-off-by: Geliang Tang <tanggeliang@...inos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 tools/testing/selftests/net/mptcp/pm_netlink.sh | 32 +++++++++++++++++++------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/pm_netlink.sh b/tools/testing/selftests/net/mptcp/pm_netlink.sh
index 6ab8c5d36340..d672d1e5d470 100755
--- a/tools/testing/selftests/net/mptcp/pm_netlink.sh
+++ b/tools/testing/selftests/net/mptcp/pm_netlink.sh
@@ -46,6 +46,26 @@ trap cleanup EXIT

 mptcp_lib_ns_init ns1

+format_limits() {
+	local accept="${1}"
+	local subflows="${2}"
+
+	if mptcp_lib_is_ip_mptcp; then
+		# with a space at the end
+		printf "add_addr_accepted %d subflows %d \n" "${accept}" "${subflows}"
+	else
+		printf "accept %d\nsubflows %d\n" "${accept}" "${subflows}"
+	fi
+}
+
+get_limits() {
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns1}" mptcp limits
+	else
+		ip netns exec "${ns1}" ./pm_nl_ctl limits
+	fi
+}
+
 check()
 {
 	local cmd="$1"
@@ -69,10 +89,9 @@ check()

 check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"

-default_limits="$(ip netns exec $ns1 ./pm_nl_ctl limits)"
+default_limits="$(get_limits)"
 if mptcp_lib_expect_all_features; then
-	check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
-subflows 2" "defaults limits"
+	check "get_limits" "$(format_limits 0 2)" "defaults limits"
 fi

 ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
@@ -120,14 +139,13 @@ ip netns exec $ns1 ./pm_nl_ctl flush
 check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "flush addrs"

 ip netns exec $ns1 ./pm_nl_ctl limits 9 1 2>/dev/null
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "rcv addrs above hard limit"
+check "get_limits" "${default_limits}" "rcv addrs above hard limit"

 ip netns exec $ns1 ./pm_nl_ctl limits 1 9 2>/dev/null
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "subflows above hard limit"
+check "get_limits" "${default_limits}" "subflows above hard limit"

 ip netns exec $ns1 ./pm_nl_ctl limits 8 8
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 8
-subflows 8" "set limits"
+check "get_limits" "$(format_limits 8 8)" "set limits"

 ip netns exec $ns1 ./pm_nl_ctl flush
 ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1

-- 
2.43.0