xfs: test for fixing wrong root inode number in dump

Test '-x' option of xfsrestore. With this option, a wrong root inode
number in a dump file is corrected. A root inode number can be wrong
in a dump created by problematic xfsdump (v3.1.7 - v3.1.9) with
bulkstat misuse. In this test, a corrupted dump file is created by
overwriting a root inode number in a header.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Hironori Shiina <shiina.hironori@fujitsu.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/common/xfs b/common/xfs
index e1c15d3d..8334880e 100644
--- a/common/xfs
+++ b/common/xfs
@@ -1402,3 +1402,9 @@ _xfs_filter_mkfs()
 		print STDOUT "realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX\n";
 	}'
 }
+
+_require_xfsrestore_xflag()
+{
+	$XFSRESTORE_PROG -h 2>&1 | grep -q -e '-x' || \
+			_notrun 'xfsrestore does not support -x flag.'
+}