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Message-Id: <20250303-tunnels-v2-5-8329f38f0678@bootlin.com>
Date: Mon, 03 Mar 2025 09:22:53 +0100
From: "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@...tlin.com>
To: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>,
Eduard Zingerman <eddyz87@...il.com>, 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@...ichev.me>, Hao Luo <haoluo@...gle.com>,
Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>,
Shuah Khan <shuah@...nel.org>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Alexis Lothore <alexis.lothore@...tlin.com>, bpf@...r.kernel.org,
linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
"Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@...tlin.com>
Subject: [PATCH bpf-next v2 05/10] selftests/bpf: test_tunnel: Move erspan
tunnel tests to test_progs
erspan tunnels are tested in the test_tunnel.sh but not in the test_progs
framework.
Add a new test in test_progs to test erspan tunnels. It uses the same
network topology and the same BPF programs than the script.
Remove test_erspan() from the script.
Acked-by: Stanislav Fomichev <sdf@...ichev.me>
Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@...tlin.com>
---
.../testing/selftests/bpf/prog_tests/test_tunnel.c | 46 +++++++++++++++++++
tools/testing/selftests/bpf/test_tunnel.sh | 52 ----------------------
2 files changed, 46 insertions(+), 52 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
index 1aa0fa56a679a4b6fdd2f36868493b977171e965..1f39ebdf79c8ecab92782b63f2da5c5d7cb64159 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
@@ -106,6 +106,9 @@
#define IP6GRE_TUNL_DEV0 "ip6gre00"
#define IP6GRE_TUNL_DEV1 "ip6gre11"
+#define ERSPAN_TUNL_DEV0 "erspan00"
+#define ERSPAN_TUNL_DEV1 "erspan11"
+
#define PING_ARGS "-i 0.01 -c 3 -w 10 -q"
static int config_device(void)
@@ -872,6 +875,47 @@ static void test_ip6gre_tunnel(enum ip6gre_test test)
test_tunnel_kern__destroy(skel);
}
+enum erspan_test {
+ V1,
+ V2
+};
+
+static void test_erspan_tunnel(enum erspan_test test)
+{
+ struct test_tunnel_kern *skel;
+ int set_fd, get_fd;
+ int err;
+
+ skel = test_tunnel_kern__open_and_load();
+ if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+ return;
+
+ switch (test) {
+ case V1:
+ err = add_ipv4_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1,
+ "erspan", "seq key 2 erspan_ver 1 erspan 123");
+ break;
+ case V2:
+ err = add_ipv4_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1,
+ "erspan",
+ "seq key 2 erspan_ver 2 erspan_dir egress erspan_hwid 3");
+ break;
+ }
+ if (!ASSERT_OK(err, "add tunnel"))
+ goto done;
+
+ set_fd = bpf_program__fd(skel->progs.erspan_set_tunnel);
+ get_fd = bpf_program__fd(skel->progs.erspan_get_tunnel);
+ if (generic_attach(ERSPAN_TUNL_DEV1, get_fd, set_fd))
+ goto done;
+
+ ping_dev0();
+ ping_dev1();
+done:
+ delete_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1);
+ test_tunnel_kern__destroy(skel);
+}
+
#define RUN_TEST(name, ...) \
({ \
if (test__start_subtest(#name)) { \
@@ -895,6 +939,8 @@ static void *test_tunnel_run_tests(void *arg)
RUN_TEST(gre_tunnel, GRETAP_NOKEY);
RUN_TEST(ip6gre_tunnel, IP6GRE);
RUN_TEST(ip6gre_tunnel, IP6GRETAP);
+ RUN_TEST(erspan_tunnel, V1);
+ RUN_TEST(erspan_tunnel, V2);
return NULL;
}
diff --git a/tools/testing/selftests/bpf/test_tunnel.sh b/tools/testing/selftests/bpf/test_tunnel.sh
index 367af24d2ca5263be279a1a684daac161e7ec906..e8e7839fb5b5f69a50a6f1fcd606d1cb6dee3c64 100755
--- a/tools/testing/selftests/bpf/test_tunnel.sh
+++ b/tools/testing/selftests/bpf/test_tunnel.sh
@@ -64,29 +64,6 @@ config_device()
ip addr add dev veth1 172.16.1.200/24
}
-add_erspan_tunnel()
-{
- # at_ns0 namespace
- if [ "$1" == "v1" ]; then
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local 172.16.1.100 remote 172.16.1.200 \
- erspan_ver 1 erspan 123
- else
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local 172.16.1.100 remote 172.16.1.200 \
- erspan_ver 2 erspan_dir egress erspan_hwid 3
- fi
- ip netns exec at_ns0 ip link set dev $DEV_NS up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
-
- # root namespace
- ip link add dev $DEV type $TYPE external
- ip link set dev $DEV up
- ip addr add dev $DEV 10.1.1.200/24
-}
-
add_ip6erspan_tunnel()
{
@@ -189,30 +166,6 @@ add_ip6tnl_tunnel()
ip link set dev $DEV up
}
-test_erspan()
-{
- TYPE=erspan
- DEV_NS=erspan00
- DEV=erspan11
- ret=0
-
- check $TYPE
- config_device
- add_erspan_tunnel $1
- attach_bpf $DEV erspan_set_tunnel erspan_get_tunnel
- ping $PING_ARG 10.1.1.100
- check_err $?
- ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
- check_err $?
- cleanup
-
- if [ $ret -ne 0 ]; then
- echo -e ${RED}"FAIL: $TYPE"${NC}
- return 1
- fi
- echo -e ${GREEN}"PASS: $TYPE"${NC}
-}
-
test_ip6erspan()
{
TYPE=ip6erspan
@@ -388,7 +341,6 @@ cleanup()
ip link del ip6ip6tnl11 2> /dev/null
ip link del geneve11 2> /dev/null
ip link del ip6geneve11 2> /dev/null
- ip link del erspan11 2> /dev/null
ip link del ip6erspan11 2> /dev/null
}
@@ -426,10 +378,6 @@ bpf_tunnel_test()
{
local errors=0
- echo "Testing ERSPAN tunnel..."
- test_erspan v2
- errors=$(( $errors + $? ))
-
echo "Testing IP6ERSPAN tunnel..."
test_ip6erspan v2
errors=$(( $errors + $? ))
--
2.48.1
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