linux-ext4 - [xfstests PATCH 1/2] ext4/053: update the test_dummy

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Date:   Sat, 30 Apr 2022 22:19:27 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     fstests@...r.kernel.org
Cc:     linux-fscrypt@...r.kernel.org, linux-ext4@...r.kernel.org,
        Lukas Czerner <lczerner@...hat.com>
Subject: [xfstests PATCH 1/2] ext4/053: update the test_dummy_encryption tests

From: Eric Biggers <ebiggers@...gle.com>

The kernel patch "ext4: only allow test_dummy_encryption when supported"
will tighten the requirements on when the test_dummy_encryption mount
option will be accepted.  Update ext4/053 accordingly.

Move the test cases to later in the file to group them with the other
test cases that use do_mkfs to add custom mkfs options instead of using
the "default" filesystem that the test creates at the beginning.

Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 tests/ext4/053 | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/tests/ext4/053 b/tests/ext4/053
index bf6e3f6b..84f3eab9 100755
--- a/tests/ext4/053
+++ b/tests/ext4/053
@@ -512,20 +512,6 @@ for fstype in ext2 ext3 ext4; do
 	mnt noinit_itable
 	mnt max_dir_size_kb=4096
 
-	if _has_kernel_config CONFIG_FS_ENCRYPTION; then
-		mnt test_dummy_encryption
-		mnt test_dummy_encryption=v1
-		mnt test_dummy_encryption=v2
-		not_mnt test_dummy_encryption=v3
-		not_mnt test_dummy_encryption=
-	else
-		mnt test_dummy_encryption ^test_dummy_encryption
-		mnt test_dummy_encryption=v1 ^test_dummy_encryption=v1
-		mnt test_dummy_encryption=v2 ^test_dummy_encryption=v2
-		mnt test_dummy_encryption=v3 ^test_dummy_encryption=v3
-		not_mnt test_dummy_encryption=
-	fi
-
 	if _has_kernel_config CONFIG_FS_ENCRYPTION_INLINE_CRYPT; then
 		mnt inlinecrypt
 	else
@@ -687,6 +673,27 @@ for fstype in ext2 ext3 ext4; do
 	mnt_then_not_remount defaults jqfmt=vfsv1
 	remount defaults grpjquota=,usrjquota= ignored
 
+	echo "== Testing the test_dummy_encryption option" >> $seqres.full
+	# Since kernel commit "ext4: only allow test_dummy_encryption when
+	# supported", the test_dummy_encryption mount option is only allowed
+	# when the filesystem has the encrypt feature and the kernel has
+	# CONFIG_FS_ENCRYPTION.  Note, the encrypt feature requirement implies
+	# that this option is never allowed on ext2 or ext3 mounts.
+	if [[ $fstype == ext4 ]] && _has_kernel_config CONFIG_FS_ENCRYPTION; then
+		do_mkfs -O encrypt $SCRATCH_DEV ${SIZE}k
+		mnt test_dummy_encryption
+		mnt test_dummy_encryption=v1
+		mnt test_dummy_encryption=v2
+		not_mnt test_dummy_encryption=bad
+		not_mnt test_dummy_encryption=
+		do_mkfs -O ^encrypt $SCRATCH_DEV ${SIZE}k
+	fi
+	not_mnt test_dummy_encryption
+	not_mnt test_dummy_encryption=v1
+	not_mnt test_dummy_encryption=v2
+	not_mnt test_dummy_encryption=bad
+	not_mnt test_dummy_encryption=
+
 done #for fstype in ext2 ext3 ext4; do
 
 $UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
-- 
2.36.0