diff mbox series

[bpf,4/5] selftests/bpf: Add netkit tests for mac address and mtu

Message ID 20240524130115.9854-4-daniel@iogearbox.net (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series [bpf,1/5] netkit: Fix setting mac address in l2 mode | expand

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Commit Message

Daniel Borkmann May 24, 2024, 1:01 p.m. UTC 
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@iogearbox.net>
---
 .../selftests/bpf/prog_tests/tc_netkit.c      | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff mbox series

Patch

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");