From: Darrick J. Wong <djwong@xxxxxxxxxx>
Don't fuzz timestamps since all bit patterns are valid and XFS itself
does not perform any validation on them.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
common/fuzzy | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/common/fuzzy b/common/fuzzy
index cd6e2a0e08..2798c257a0 100644
--- a/common/fuzzy
+++ b/common/fuzzy
@@ -73,6 +73,14 @@ __filter_xfs_db_keys() {
-e '/pad/d'
}
+# Filter out metadata fields that are completely controlled by userspace
+# or are arbitrary bit sequences. In other words, fields where the filesystem
+# does no validation.
+__filter_unvalidated_xfs_db_fields() {
+ sed -e '/\.sec/d' \
+ -e '/\.nsec/d'
+}
+
# Filter the xfs_db print command's field debug information
# into field name and type.
__filter_xfs_db_print_fields() {
@@ -91,7 +99,7 @@ __filter_xfs_db_print_fields() {
else
echo "${fuzzkey}"
fi
- done | grep -E "${filter}"
+ done | grep -E "${filter}" | __filter_unvalidated_xfs_db_fields
}
# Navigate to some part of the filesystem and print the field info.
