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authorCarlos Llamas <cmllamas@google.com>2021-07-15 03:18:05 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-21 13:46:36 +0200
commit07e913418ce4ba5eb620dd4668bf91ec94e11136 (patch)
tree58490741fc408726b954963fb9f84650bb7992f7
parentdocs: binderfs: add section about feature files (diff)
downloadlinux-dev-07e913418ce4ba5eb620dd4668bf91ec94e11136.tar.xz
linux-dev-07e913418ce4ba5eb620dd4668bf91ec94e11136.zip
selftests/binderfs: add test for feature files
Verify that feature files are created successfully after mounting a binderfs instance. Note that only "oneway_spam_detection" feature is tested with this patch as it is currently the only feature listed. Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Carlos Llamas <cmllamas@google.com> Link: https://lore.kernel.org/r/20210715031805.1725878-3-cmllamas@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
-rw-r--r--tools/testing/selftests/filesystems/binderfs/binderfs_test.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
index 477cbb042f5b..0315955ff0f4 100644
--- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -62,6 +62,9 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
struct binder_version version = { 0 };
char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+ static const char * const binder_features[] = {
+ "oneway_spam_detection",
+ };
change_mountns(_metadata);
@@ -150,6 +153,20 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
}
/* success: binder-control device removal failed as expected */
+
+ for (int i = 0; i < ARRAY_SIZE(binder_features); i++) {
+ snprintf(device_path, sizeof(device_path), "%s/features/%s",
+ binderfs_mntpt, binder_features[i]);
+ fd = open(device_path, O_CLOEXEC | O_RDONLY);
+ EXPECT_GE(fd, 0) {
+ TH_LOG("%s - Failed to open binder feature: %s",
+ strerror(errno), binder_features[i]);
+ goto umount;
+ }
+ close(fd);
+ }
+
+ /* success: binder feature files found */
result = 0;
umount: