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common/fuzzy: move fuzzing helper functions here
Move some fuzzing helper functions into a new common/fuzzy file. We'll add a lot more fuzzing helpers in subsequent patches. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Darrick J. Wong
committed by
Eryu Guan
Eryu Guan
parent
7a7463d362
commit
dac5feaea7
@@ -0,0 +1,80 @@
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##/bin/bash
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# Routines for fuzzing and scrubbing a filesystem.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2017 Oracle. All Rights Reserved.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA
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#-----------------------------------------------------------------------
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# Modify various files after a fuzzing operation
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_scratch_fuzz_modify() {
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nr="$1"
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test -z "${nr}" && nr=50000
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echo "+++ touch ${nr} files"
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blk_sz=$(stat -f -c '%s' ${SCRATCH_MNT})
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$XFS_IO_PROG -f -c "pwrite -S 0x63 0 ${blk_sz}" "/tmp/afile" > /dev/null
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date="$(date)"
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find "${SCRATCH_MNT}/" -type f 2> /dev/null | head -n "${nr}" | while read f; do
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setfattr -n "user.date" -v "${date}" "$f"
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cat "/tmp/afile" >> "$f"
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mv "$f" "$f.longer"
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done
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sync
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rm -rf "/tmp/afile"
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echo "+++ create files"
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mkdir -p "${SCRATCH_MNT}/test.moo"
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$XFS_IO_PROG -f -c 'pwrite -S 0x80 0 65536' "${SCRATCH_MNT}/test.moo/urk"
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sync
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echo "+++ remove files"
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rm -rf "${SCRATCH_MNT}/test.moo"
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}
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# Try to access files after fuzzing
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_scratch_fuzz_test() {
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echo "+++ ls -laR" >> $seqres.full
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ls -laR "${SCRATCH_MNT}/test.1/" >/dev/null 2>&1
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echo "+++ cat files" >> $seqres.full
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(find "${SCRATCH_MNT}/test.1/" -type f -size -1048576k -print0 | xargs -0 cat) >/dev/null 2>&1
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}
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# Do we have an online scrub program?
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_require_scrub() {
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case "${FSTYP}" in
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"xfs"|"ext4")
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test -x "$XFS_SCRUB_PROG" || _notrun "xfs_scrub not found"
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;;
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*)
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_notrun "No online scrub program for ${FSTYP}."
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;;
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esac
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}
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# Scrub the scratch filesystem metadata (online)
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_scratch_scrub() {
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case "${FSTYP}" in
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"xfs"|"ext4"|"ext3"|"ext2")
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$XFS_SCRUB_PROG -d -T -v "$@" $SCRATCH_MNT
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;;
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*)
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_fail "No online scrub program for ${FSTYP}."
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;;
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esac
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}
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@@ -606,41 +606,6 @@ _scratch_populate() {
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esac
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}
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# Modify various files after a fuzzing operation
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_scratch_fuzz_modify() {
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nr="$1"
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test -z "${nr}" && nr=50000
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echo "+++ touch ${nr} files"
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blk_sz=$(stat -f -c '%s' ${SCRATCH_MNT})
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$XFS_IO_PROG -f -c "pwrite -S 0x63 0 ${blk_sz}" "/tmp/afile" > /dev/null
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date="$(date)"
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find "${SCRATCH_MNT}/" -type f 2> /dev/null | head -n "${nr}" | while read f; do
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setfattr -n "user.date" -v "${date}" "$f"
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cat "/tmp/afile" >> "$f"
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mv "$f" "$f.longer"
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done
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sync
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rm -rf "/tmp/afile"
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echo "+++ create files"
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mkdir -p "${SCRATCH_MNT}/test.moo"
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$XFS_IO_PROG -f -c 'pwrite -S 0x80 0 65536' "${SCRATCH_MNT}/test.moo/urk"
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sync
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echo "+++ remove files"
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rm -rf "${SCRATCH_MNT}/test.moo"
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}
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# Try to access files after fuzzing
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_scratch_fuzz_test() {
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echo "+++ ls -laR" >> $seqres.full
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ls -laR "${SCRATCH_MNT}/test.1/" >/dev/null 2>&1
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echo "+++ cat files" >> $seqres.full
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(find "${SCRATCH_MNT}/test.1/" -type f -size -1048576k -print0 | xargs -0 cat) >/dev/null 2>&1
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}
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# Fill a file system by repeatedly creating files in the given folder
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# starting with the given file size. Files are reduced in size when
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# they can no longer fit until no more files can be created.
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@@ -43,6 +43,7 @@ _cleanup()
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. ./common/filter
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. ./common/attr
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. ./common/populate
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. ./common/fuzzy
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if [ ! -x "$(which e2fuzz)" ]; then
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_notrun "Couldn't find e2fuzz"
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@@ -43,6 +43,7 @@ _cleanup()
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. ./common/filter
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. ./common/attr
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. ./common/populate
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. ./common/fuzzy
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# real QA test starts here
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_supported_fs xfs
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