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authorAlexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com>2024-07-31 08:37:27 +0200
committerMartin KaFai Lau <martin.lau@kernel.org>2024-07-31 10:00:20 -0700
commit84cdbff4a93501b7199f0d2f1150961ee95c8582 (patch)
tree577caa5c25393d49c731bb97a39727748cef637f /tools/testing/selftests
parentd83d8230e415ecf727f6b88c0ae55193f149d650 (diff)
selftests/bpf: add wrong type test to cgroup dev
Current cgroup_dev test mostly tests that device operation is accepted or refused base on passed major/minor (and so, any operation performed during test involves only char device) Add a small subtest ensuring that the device type passed to bpf program allows it to take decisions as well. Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20240731-convert_dev_cgroup-v4-3-849425d90de6@bootlin.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/testing/selftests')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/cgroup_dev.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c b/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c
index 8661e145ba84..5ab7547e38c0 100644
--- a/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c
@@ -114,6 +114,10 @@ void test_cgroup_dev(void)
if (test__start_subtest("deny-write"))
test_write("/dev/zero", buf, TEST_BUFFER_SIZE, -1, EPERM);
+ if (test__start_subtest("deny-mknod-wrong-type"))
+ test_mknod("/dev/test_dev_cgroup_block", S_IFBLK, 1, 3, -1,
+ EPERM);
+
cleanup_progs:
dev_cgroup__destroy(skel);
cleanup_cgroup: