diff options
Diffstat (limited to 'tests/ts/mount/rlimit')
-rwxr-xr-x | tests/ts/mount/rlimit | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/ts/mount/rlimit b/tests/ts/mount/rlimit new file mode 100755 index 0000000..7d7e42b --- /dev/null +++ b/tests/ts/mount/rlimit @@ -0,0 +1,78 @@ +#!/bin/bash + +# +# Copyright (C) 2007 Karel Zak <kzak@redhat.com> +# +# This file is part of util-linux. +# +# This file 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 file 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. +# + +# +# The /etc/mtab file should not be modified if RLIMIT_FSIZE (ulimit -f) +# is too low, otherwise the file could be corrupted (incomplete write). +# The [u]mount(8) has to block SIGXFSZ and check if all writes and fflush +# calls are successful. +# + +TS_TOPDIR="$(dirname $0)/../.." +TS_DESC="rlimit-fsize" + +. $TS_TOPDIR/functions.sh +ts_init "$*" +ts_skip_nonroot + +[ -L /etc/mtab ] && ts_skip "mtab is symlink" +[ "$(stat --format '%s' /etc/mtab)" -gt "1024" ] || ts_skip "mtab is too small" + +set -o pipefail + +function mtab_checksum() +{ + md5sum /etc/mtab | awk '{printf $1}' +} + +DEVICE=$(ts_device_init) +[ "$?" == 0 ] || ts_die "Cannot init device" + +mkfs.ext3 $DEVICE &> /dev/null || ts_die "Cannot make ext3 on $DEVICE" $DEVICE + + +ts_init_subtest "mount" +OLD_SUM=$(mtab_checksum) +[ -d "$TS_MOUNTPOINT" ] || mkdir -p $TS_MOUNTPOINT +( + ulimit -f 1 + $TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT +) &> /dev/null +NEW_SUM=$(mtab_checksum) +$TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null +[ $NEW_SUM = $OLD_SUM ] && echo "OK: mtab unmodified by mount" >> $TS_OUTPUT +ts_finalize_subtest + + +ts_init_subtest "umount" +[ -d "$TS_MOUNTPOINT" ] || mkdir -p $TS_MOUNTPOINT +$TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT &> /dev/null +OLD_SUM=$(mtab_checksum) +( + ulimit -f 1 + $TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null +) &> /dev/null +NEW_SUM=$(mtab_checksum) +$TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null +[ $NEW_SUM = $OLD_SUM ] && echo "OK: mtab unmodified by umount" >> $TS_OUTPUT +ts_finalize_subtest + + +ts_device_deinit $DEVICE +ts_log "Success" +ts_finalize |