[PATCH] common/rc, ceph: add _require_not_encrypted test

[Jeff Layton <jlayton@kernel.org>]

Some tests on ceph require changing the layout of new files, which is
forbidden when the files are encrypted. Add a test that touches a file
in $TEST_DIR and then tests it to see if it reports the
STATX_ATTR_ENCRYPTED flag, and does a _notrun if it's present.

Also add this requirement to the two ceph tests that change the layout.

Cc: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 common/rc      | 17 +++++++++++++++++
 tests/ceph/002 |  1 +
 tests/ceph/003 |  1 +
 3 files changed, 19 insertions(+)

diff --git a/common/rc b/common/rc
index 7973ceb5fdf8..9165325dc478 100644
--- a/common/rc
+++ b/common/rc
@@ -4782,6 +4782,23 @@ _require_kernel_config()
 	_has_kernel_config $1 || _notrun "Installed kernel not built with $1"
 }
 
+_require_not_encrypted()
+{
+	local target=$TEST_DIR/require_not_encrypted.$$
+	local ret=0
+
+	#
+	# The top-level directory mounted with test_dummy_encryption is not
+	# itself encrypted. Only new files and directories created under it
+	# are.
+	touch $target
+	local attrs=$($XFS_IO_PROG -c 'statx -r' $target | awk '/stat.attributes / { print $3 }')
+	rm -f $target
+
+	# STATX_ATTR_ENCRYPTED == 0x800
+	[ $(( attrs & 0x800 )) -eq 0 ] || _notrun "Filesystem is encrypted"
+}
+
 init_rc
 
 ################################################################################
diff --git a/tests/ceph/002 b/tests/ceph/002
index 9bc728fd2e18..be5c0f8c644d 100755
--- a/tests/ceph/002
+++ b/tests/ceph/002
@@ -30,6 +30,7 @@ _begin_fstest auto quick copy_range
 _supported_fs ceph
 
 _require_xfs_io_command "copy_range"
+_require_not_encrypted
 _require_attrs
 _require_test
 
diff --git a/tests/ceph/003 b/tests/ceph/003
index faedb48cfeea..c8aefc4ad06f 100755
--- a/tests/ceph/003
+++ b/tests/ceph/003
@@ -18,6 +18,7 @@ _begin_fstest auto quick copy_range
 _supported_fs ceph
 
 _require_xfs_io_command "copy_range"
+_require_not_encrypted
 _require_attrs
 _require_test
 
-- 
2.33.1