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Message-Id: <20240524130115.9854-4-daniel@iogearbox.net>
Date: Fri, 24 May 2024 15:01:14 +0200
From: Daniel Borkmann <daniel@...earbox.net>
To: martin.lau@...nel.org
Cc: razor@...ckwall.org,
bpf@...r.kernel.org,
netdev@...r.kernel.org,
Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH bpf 4/5] selftests/bpf: Add netkit tests for mac address and mtu
This adds two simple tests around setting MAC addresses in the different
netkit modes as well as syncing MTUs.
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
---
.../selftests/bpf/prog_tests/tc_netkit.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_netkit.c b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
index 15ee7b2fc410..598f9d5e656b 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
@@ -73,6 +73,25 @@ static int create_netkit(int mode, int policy, int peer_policy, int *ifindex,
"up primary");
ASSERT_OK(system("ip addr add dev " netkit_name " 10.0.0.1/24"),
"addr primary");
+
+ ASSERT_OK(system("ip link set dev " netkit_name " mtu 4000"),
+ "set mtu");
+ ASSERT_OK(system("ip link show dev " netkit_peer " | grep 4000 > /dev/null"),
+ "get mtu");
+ ASSERT_OK(system("ip link set dev " netkit_peer " mtu 1500"),
+ "set mtu");
+ ASSERT_OK(system("ip link show dev " netkit_peer " | grep 4000 > /dev/null"),
+ "get mtu");
+
+ if (mode == NETKIT_L3) {
+ ASSERT_EQ(system("ip link set dev " netkit_name
+ " addr ee:ff:bb:cc:aa:dd 2> /dev/null"), 512,
+ "set hwaddress");
+ } else {
+ ASSERT_OK(system("ip link set dev " netkit_name
+ " addr ee:ff:bb:cc:aa:dd"),
+ "set hwaddress");
+ }
if (same_netns) {
ASSERT_OK(system("ip link set dev " netkit_peer " up"),
"up peer");
--
2.34.1
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