Thread (7 messages) 7 messages, 3 authors, 2023-11-28
STALE973d
Revisions (2)
  1. v3 current
  2. v4 [diff vs current]

[PATCH bpf-next v3 1/2] selftests/bpf: increase invalid metadata size

From: Larysa Zaremba <hidden>
Date: 2023-11-27 18:51:43
Also in: bpf
Subsystem: bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest, xdp (express data path) · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Linus Torvalds, David S. Miller, Jakub Kicinski, Jesper Dangaard Brouer, John Fastabend

Changed check expects passed data meta to be deemed invalid.
After loosening the requirement, the size of 36 bytes becomes valid.
Therefore, increase tested meta size to 256, so we do not get an unexpected
success.

Signed-off-by: Larysa Zaremba <redacted>
---
 tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c | 4 ++--
 1 file changed, 2 insertions(+), 2 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 ab4952b9fb1d..e6a783c7f5db 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
@@ -77,8 +77,8 @@ 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 32 bytes or smaller */
-	test_xdp_context_error(prog_fd, opts, 0, 36, 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 match data_end - data_meta */
 	test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32),
-- 
2.41.0
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