+##/bin/bash
+
+# Routines for fuzzing and scrubbing a filesystem.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017 Oracle. All Rights Reserved.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA
+#-----------------------------------------------------------------------
+
+# Modify various files after a fuzzing operation
+_scratch_fuzz_modify() {
+ nr="$1"
+
+ test -z "${nr}" && nr=50000
+ echo "+++ touch ${nr} files"
+ blk_sz=$(stat -f -c '%s' ${SCRATCH_MNT})
+ $XFS_IO_PROG -f -c "pwrite -S 0x63 0 ${blk_sz}" "/tmp/afile" > /dev/null
+ date="$(date)"
+ find "${SCRATCH_MNT}/" -type f 2> /dev/null | head -n "${nr}" | while read f; do
+ setfattr -n "user.date" -v "${date}" "$f"
+ cat "/tmp/afile" >> "$f"
+ mv "$f" "$f.longer"
+ done
+ sync
+ rm -rf "/tmp/afile"
+
+ echo "+++ create files"
+ mkdir -p "${SCRATCH_MNT}/test.moo"
+ $XFS_IO_PROG -f -c 'pwrite -S 0x80 0 65536' "${SCRATCH_MNT}/test.moo/urk"
+ sync
+
+ echo "+++ remove files"
+ rm -rf "${SCRATCH_MNT}/test.moo"
+}
+
+# Try to access files after fuzzing
+_scratch_fuzz_test() {
+ echo "+++ ls -laR" >> $seqres.full
+ ls -laR "${SCRATCH_MNT}/test.1/" >/dev/null 2>&1
+
+ echo "+++ cat files" >> $seqres.full
+ (find "${SCRATCH_MNT}/test.1/" -type f -size -1048576k -print0 | xargs -0 cat) >/dev/null 2>&1
+}
+
+# Do we have an online scrub program?
+_require_scrub() {
+ case "${FSTYP}" in
+ "xfs"|"ext4")
+ test -x "$XFS_SCRUB_PROG" || _notrun "xfs_scrub not found"
+ ;;
+ *)
+ _notrun "No online scrub program for ${FSTYP}."
+ ;;
+ esac
+}
+
+# Scrub the scratch filesystem metadata (online)
+_scratch_scrub() {
+ case "${FSTYP}" in
+ "xfs"|"ext4"|"ext3"|"ext2")
+ $XFS_SCRUB_PROG -d -T -v "$@" $SCRATCH_MNT
+ ;;
+ *)
+ _fail "No online scrub program for ${FSTYP}."
+ ;;
+ esac
+}