[PATCH bpf-next 06/10] selftests/bpf: test_xdp_veth: Add new test cases for XDP flags

["Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@xxxxxxxxxxx>]

The XDP redirection is tested without any flag provided to the
xdp_attach() function.

Add two subtests that check the correct behaviour with
XDP_FLAGS_{DRV/SKB}_MODE flags

Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@xxxxxxxxxxx>
---
 .../selftests/bpf/prog_tests/test_xdp_veth.c       | 27 ++++++++++++++++------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c b/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c
index 0aa1583b741b15f573bbb979b2047a0109070544..62a315d01e51739a7f13dddda3d5a569eab24ceb 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c
@@ -33,6 +33,7 @@
 #include "xdp_dummy.skel.h"
 #include "xdp_redirect_map.skel.h"
 #include "xdp_tx.skel.h"
+#include <uapi/linux/if_link.h>
 
 #define VETH_PAIRS_COUNT	3
 #define NS_SUFFIX_LEN		6
@@ -185,26 +186,26 @@ static int check_ping(void)
 }
 
 #define VETH_REDIRECT_SKEL_NB	3
-void test_xdp_veth_redirect(void)
+static void xdp_veth_redirect(u32 flags)
 {
 	struct prog_configuration ping_config[VETH_PAIRS_COUNT] = {
 		{
 			.local_name = "xdp_redirect_map_0",
 			.remote_name = "xdp_dummy_prog",
-			.local_flags = 0,
-			.remote_flags = 0,
+			.local_flags = flags,
+			.remote_flags = flags,
 		},
 		{
 			.local_name = "xdp_redirect_map_1",
 			.remote_name = "xdp_tx",
-			.local_flags = 0,
-			.remote_flags = 0,
+			.local_flags = flags,
+			.remote_flags = flags,
 		},
 		{
 			.local_name = "xdp_redirect_map_2",
 			.remote_name = "xdp_dummy_prog",
-			.local_flags = 0,
-			.remote_flags = 0,
+			.local_flags = flags,
+			.remote_flags = flags,
 		}
 	};
 	struct bpf_object *bpf_objs[VETH_REDIRECT_SKEL_NB];
@@ -262,3 +263,15 @@ void test_xdp_veth_redirect(void)
 
 	cleanup_network();
 }
+
+void test_xdp_veth_redirect(void)
+{
+	if (test__start_subtest("0"))
+		xdp_veth_redirect(0);
+
+	if (test__start_subtest("DRV_MODE"))
+		xdp_veth_redirect(XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("SKB_MODE"))
+		xdp_veth_redirect(XDP_FLAGS_SKB_MODE);
+}

-- 
2.47.1