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#!/bin/bash
TS_TOPDIR="${0%/*}/../.."
TS_DESC="shared-subtree"
. $TS_TOPDIR/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_MOUNT"
ts_check_test_command "$TS_CMD_UMOUNT"
ts_check_test_command "$TS_CMD_FINDMNT"
ts_skip_nonroot
[ -d $TS_MOUNTPOINT ] || mkdir -p $TS_MOUNTPOINT
# bind
$TS_CMD_MOUNT --bind $TS_MOUNTPOINT $TS_MOUNTPOINT
# check the bind
$TS_CMD_FINDMNT --kernel --target $TS_MOUNTPOINT &> /dev/null
[ "$?" == "0" ] || ts_die "Cannot find binded $TS_MOUNTPOINT in /proc/self/mountinfo"
# use the same mounpoint for all sub-tests
MOUNTPOINT="$TS_MOUNTPOINT"
ts_init_subtest "make-shared"
$TS_CMD_MOUNT --make-shared $MOUNTPOINT >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
ts_finalize_subtest
ts_init_subtest "make-private"
$TS_CMD_MOUNT --make-private $MOUNTPOINT >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
ts_finalize_subtest
ts_init_subtest "make-unbindable"
$TS_CMD_MOUNT --make-unbindable $MOUNTPOINT >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
ts_finalize_subtest
# clean up
$TS_CMD_UMOUNT $MOUNTPOINT
ts_init_subtest "bind-shared"
$TS_CMD_MOUNT --make-shared \
--bind $MOUNTPOINT $MOUNTPOINT >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
$TS_CMD_UMOUNT $MOUNTPOINT
ts_finalize_subtest
#
# block dev based mounts
#
DEVICE=$(ts_device_init)
[ "$?" == 0 ] || ts_die "Cannot init device"
mkfs.ext3 $DEVICE &> /dev/null || ts_die "Cannot make ext3 on $DEVICE" $DEVICE
ts_device_has "TYPE" "ext3" $DEVICE || ts_die "Cannot find ext3 on $DEVICE" $DEVICE
ts_init_subtest "mount-private"
$TS_CMD_MOUNT --make-private --make-unbindable \
$DEVICE $MOUNTPOINT >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
$TS_CMD_UMOUNT $MOUNTPOINT
ts_finalize_subtest
ts_init_subtest "mount-private-ro"
$TS_CMD_MOUNT $DEVICE $MOUNTPOINT -o ro,private >> $TS_OUTPUT 2>&1
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o PROPAGATION >> $TS_OUTPUT
$TS_CMD_FINDMNT -nr --target $MOUNTPOINT -o VFS-OPTIONS >> $TS_OUTPUT
$TS_CMD_UMOUNT $MOUNTPOINT
ts_finalize_subtest
ts_device_deinit $DEVICE
rmdir $MOUNTPOINT
ts_log "Success"
ts_finalize
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