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-rw-r--r--tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
index ee94c281888a..26159e0499c7 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
@@ -47,6 +47,7 @@ void test_xdp_context_test_run(void)
struct test_xdp_context_test_run *skel = NULL;
char data[sizeof(pkt_v4) + sizeof(__u32)];
char bad_ctx[sizeof(struct xdp_md) + 1];
+ char large_data[256];
struct xdp_md ctx_in, ctx_out;
DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
.data_in = &data,
@@ -94,9 +95,6 @@ void test_xdp_context_test_run(void)
test_xdp_context_error(prog_fd, opts, 4, sizeof(__u32), sizeof(data),
0, 0, 0);
- /* Meta data must be 255 bytes or smaller */
- test_xdp_context_error(prog_fd, opts, 0, 256, sizeof(data), 0, 0, 0);
-
/* Total size of data must be data_end - data_meta or larger */
test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32),
sizeof(data) + 1, 0, 0, 0);
@@ -116,6 +114,16 @@ void test_xdp_context_test_run(void)
test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32), sizeof(data),
0, 0, 1);
+ /* Meta data must be 216 bytes or smaller (256 - sizeof(struct
+ * xdp_frame)). Test both nearest invalid size and nearest invalid
+ * 4-byte-aligned size, and make sure data_in is large enough that we
+ * actually hit the check on metadata length
+ */
+ opts.data_in = large_data;
+ opts.data_size_in = sizeof(large_data);
+ test_xdp_context_error(prog_fd, opts, 0, 217, sizeof(large_data), 0, 0, 0);
+ test_xdp_context_error(prog_fd, opts, 0, 220, sizeof(large_data), 0, 0, 0);
+
test_xdp_context_test_run__destroy(skel);
}