Commit 07e91341 authored by Carlos Llamas's avatar Carlos Llamas Committed by Greg Kroah-Hartman
Browse files

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: default avatarChristian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: default avatarCarlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20210715031805.1725878-3-cmllamas@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 06e1721d

tools/testing/selftests/filesystems/binderfs/binderfs_test.c

+17 −0
Original line number Diff line number Diff line
@@ -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: