netdev - [PATCH net-next 08/15] selftests: mptcp: userspace pm send RM

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Message-Id: <20231027-send-net-next-2023107-v1-8-03eff9452957@kernel.org>
Date: Fri, 27 Oct 2023 15:57:09 -0700
From: Mat Martineau <martineau@...nel.org>
To: Matthieu Baerts <matttbe@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, mptcp@...ts.linux.dev, 
 Mat Martineau <martineau@...nel.org>, Geliang Tang <geliang.tang@...e.com>
Subject: [PATCH net-next 08/15] selftests: mptcp: userspace pm send RM_ADDR
 for ID 0

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

This patch adds a selftest for userspace PM to remove id 0 address.

Use userspace_pm_add_addr() helper to add an id 10 address, then use
userspace_pm_rm_addr() helper to remove id 0 address.

Reviewed-by: Matthieu Baerts <matttbe@...nel.org>
Signed-off-by: Geliang Tang <geliang.tang@...e.com>
Signed-off-by: Mat Martineau <martineau@...nel.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 26 +++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 68fb7aa12fef..a2b58cf71bef 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3537,6 +3537,32 @@ userspace_tests()
 		kill_events_pids
 		wait $tests_pid
 	fi
+
+	# userspace pm send RM_ADDR for ID 0
+	if reset_with_events "userspace pm send RM_ADDR for ID 0" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns2 1 1
+		speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 &
+		local tests_pid=$!
+		wait_mpj $ns1
+		userspace_pm_add_addr $ns1 10.0.2.1 10
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 2 2
+		chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
+		userspace_pm_rm_addr $ns1 0
+		# we don't look at the counter linked to the subflows that
+		# have been removed but to the one linked to the RM_ADDR
+		chk_rm_nr 1 0 invert
+		chk_rst_nr 0 0 invert
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 1 1
+		kill_events_pids
+		wait $tests_pid
+	fi
 }

 endpoint_tests()

-- 
2.41.0