[PATCH 5/5] fuzzy: fuzz test key/pointers of inode btrees

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Test what happens when we fuzz the key/pointer blocks (aka the interior
nodes) of the inode btree.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 tests/xfs/1570     |   36 ++++++++++++++++++++++++++++++++++++
 tests/xfs/1570.out |    4 ++++
 tests/xfs/1571     |   36 ++++++++++++++++++++++++++++++++++++
 tests/xfs/1571.out |    4 ++++
 tests/xfs/1572     |   38 ++++++++++++++++++++++++++++++++++++++
 tests/xfs/1572.out |    4 ++++
 tests/xfs/1573     |   37 +++++++++++++++++++++++++++++++++++++
 tests/xfs/1573.out |    4 ++++
 8 files changed, 163 insertions(+)
 create mode 100755 tests/xfs/1570
 create mode 100644 tests/xfs/1570.out
 create mode 100755 tests/xfs/1571
 create mode 100644 tests/xfs/1571.out
 create mode 100755 tests/xfs/1572
 create mode 100755 tests/xfs/1572.out
 create mode 100755 tests/xfs/1573
 create mode 100644 tests/xfs/1573.out


diff --git a/tests/xfs/1570 b/tests/xfs/1570
new file mode 100755
index 0000000000..c2d144e298
--- /dev/null
+++ b/tests/xfs/1570
@@ -0,0 +1,36 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Oracle, Inc.  All Rights Reserved.
+#
+# FS QA Test No. 1570
+#
+# Populate a XFS filesystem and fuzz every inobt key/pointer field.
+# Use xfs_repair to fix the corruption.
+#
+. ./common/preamble
+_begin_fstest dangerous_fuzzers dangerous_scrub dangerous_repair
+
+_register_cleanup "_cleanup" BUS
+
+# Import common functions.
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch_xfs_fuzz_fields
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_agbtree_height 'ino' 2)" || \
+	_fail "could not find two-level inobt"
+
+echo "Fuzz inobt"
+_scratch_xfs_fuzz_metadata '' 'offline'  "$path" 'addr root' >> $seqres.full
+echo "Done fuzzing inobt"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1570.out b/tests/xfs/1570.out
new file mode 100644
index 0000000000..b3977dca57
--- /dev/null
+++ b/tests/xfs/1570.out
@@ -0,0 +1,4 @@
+QA output created by 1570
+Format and populate
+Fuzz inobt
+Done fuzzing inobt
diff --git a/tests/xfs/1571 b/tests/xfs/1571
new file mode 100755
index 0000000000..c64b321ff6
--- /dev/null
+++ b/tests/xfs/1571
@@ -0,0 +1,36 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Oracle, Inc.  All Rights Reserved.
+#
+# FS QA Test No. 1571
+#
+# Populate a XFS filesystem and fuzz every inobt key/pointer field.
+# Use xfs_scrub to fix the corruption.
+#
+. ./common/preamble
+_begin_fstest dangerous_fuzzers dangerous_scrub dangerous_online_repair
+
+_register_cleanup "_cleanup" BUS
+
+# Import common functions.
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch_xfs_fuzz_fields
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_agbtree_height 'ino' 2)" || \
+	_fail "could not find two-level inobt"
+
+echo "Fuzz inobt"
+_scratch_xfs_fuzz_metadata '' 'online'  "$path" 'addr root' >> $seqres.full
+echo "Done fuzzing inobt"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1571.out b/tests/xfs/1571.out
new file mode 100644
index 0000000000..292e8bdec4
--- /dev/null
+++ b/tests/xfs/1571.out
@@ -0,0 +1,4 @@
+QA output created by 1571
+Format and populate
+Fuzz inobt
+Done fuzzing inobt
diff --git a/tests/xfs/1572 b/tests/xfs/1572
new file mode 100755
index 0000000000..abcdc2397f
--- /dev/null
+++ b/tests/xfs/1572
@@ -0,0 +1,38 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2022 Oracle.  All Rights Reserved.
+#
+# FS QA Test No. 1572
+#
+# Populate a XFS filesystem and fuzz every inobt key/pointer field.
+# Try online repair and, if necessary, offline repair,
+# to test the most likely usage pattern.
+
+. ./common/preamble
+_begin_fstest dangerous_fuzzers dangerous_bothrepair
+
+_register_cleanup "_cleanup" BUS
+
+# Import common functions.
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch_xfs_fuzz_fields
+_disable_dmesg_check
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_agbtree_height 'ino' 2)" || \
+	_fail "could not find two-level inobt"
+
+echo "Fuzz inobt"
+_scratch_xfs_fuzz_metadata '' 'both'  "$path" 'addr root' >> $seqres.full
+echo "Done fuzzing inobt"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1572.out b/tests/xfs/1572.out
new file mode 100755
index 0000000000..8afa3ea075
--- /dev/null
+++ b/tests/xfs/1572.out
@@ -0,0 +1,4 @@
+QA output created by 1572
+Format and populate
+Fuzz inobt
+Done fuzzing inobt
diff --git a/tests/xfs/1573 b/tests/xfs/1573
new file mode 100755
index 0000000000..7a816e59b8
--- /dev/null
+++ b/tests/xfs/1573
@@ -0,0 +1,37 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Oracle, Inc.  All rights reserved.
+#
+# FS QA Test No. 1573
+#
+# Populate a XFS filesystem and fuzz every inobt key/pointer field.
+# Do not fix the filesystem, to test metadata verifiers.
+
+. ./common/preamble
+_begin_fstest dangerous_fuzzers dangerous_norepair
+
+_register_cleanup "_cleanup" BUS
+
+# Import common functions.
+. ./common/filter
+. ./common/populate
+. ./common/fuzzy
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch_xfs_fuzz_fields
+_disable_dmesg_check
+
+echo "Format and populate"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+path="$(_scratch_xfs_find_agbtree_height 'ino' 2)" || \
+	_fail "could not find two-level inobt"
+
+echo "Fuzz inobt"
+_scratch_xfs_fuzz_metadata '' 'none'  "$path" 'addr root' >> $seqres.full
+echo "Done fuzzing inobt"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/1573.out b/tests/xfs/1573.out
new file mode 100644
index 0000000000..cef5aef758
--- /dev/null
+++ b/tests/xfs/1573.out
@@ -0,0 +1,4 @@
+QA output created by 1573
+Format and populate
+Fuzz inobt
+Done fuzzing inobt




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