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Message-Id: <20240507-upstream-bpf-next-20240506-mptcp-subflow-test-v1-1-e2bcbdf49857@kernel.org>
Date: Tue, 07 May 2024 12:53:31 +0200
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, 
 Geliang Tang <geliang@...nel.org>, Andrii Nakryiko <andrii@...nel.org>, 
 Eduard Zingerman <eddyz87@...il.com>, Mykola Lysenko <mykolal@...com>, 
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, 
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, 
 Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>, 
 Jiri Olsa <jolsa@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 bpf@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, 
 Geliang Tang <tanggeliang@...inos.cn>
Subject: [PATCH bpf-next 1/4] selftests/bpf: Handle SIGINT when creating
 netns

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

It's necessary to delete netns during the MPTCP bpf tests interrupt,
otherwise the next tests run will fail due to unable to create netns.

This patch adds a new SIGINT handle sig_int, and deletes NS_TEST in it.

Signed-off-by: Geliang Tang <tanggeliang@...inos.cn>
Reviewed-by: Mat Martineau <martineau@...nel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
 tools/testing/selftests/bpf/prog_tests/mptcp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c
index 274d2e033e39..baf976a7a1dd 100644
--- a/tools/testing/selftests/bpf/prog_tests/mptcp.c
+++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c
@@ -64,11 +64,18 @@ struct mptcp_storage {
 	char ca_name[TCP_CA_NAME_MAX];
 };
 
+static void sig_int(int sig)
+{
+	signal(sig, SIG_IGN);
+	SYS_NOFAIL("ip netns del %s", NS_TEST);
+}
+
 static struct nstoken *create_netns(void)
 {
 	SYS(fail, "ip netns add %s", NS_TEST);
 	SYS(fail, "ip -net %s link set dev lo up", NS_TEST);
 
+	signal(SIGINT, sig_int);
 	return open_netns(NS_TEST);
 fail:
 	return NULL;

-- 
2.43.0


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