| #!/bin/ksh -p |
| # |
| # CDDL HEADER START |
| # |
| # The contents of this file are subject to the terms of the |
| # Common Development and Distribution License (the "License"). |
| # You may not use this file except in compliance with the License. |
| # |
| # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| # or http://www.opensolaris.org/os/licensing. |
| # See the License for the specific language governing permissions |
| # and limitations under the License. |
| # |
| # When distributing Covered Code, include this CDDL HEADER in each |
| # file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| # If applicable, add the following below this CDDL HEADER, with the |
| # fields enclosed by brackets "[]" replaced with your own identifying |
| # information: Portions Copyright [yyyy] [name of copyright owner] |
| # |
| # CDDL HEADER END |
| # |
| |
| # |
| # Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| # Use is subject to license terms. |
| # |
| |
| # |
| # Copyright (c) 2016 by Delphix. All rights reserved. |
| # Copyright (c) 2018, Datto, Inc. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib |
| |
| # |
| # DESCRIPTION: |
| # Invoke "zfs mount <filesystem>" with a filesystem |
| # mountpoint that is identical to an existing one. |
| # It will fail with a return code of 1. For Linux, |
| # place a file in the directory to ensure the failure. |
| # Also for Linux, test overlay=off (default) in which case |
| # the mount will fail, and overlay=on, where the mount |
| # will succeed. |
| # |
| # STRATEGY: |
| # 1. Prepare an existing mounted filesystem. |
| # 2. Setup a new filesystem and make sure that it is unmounted. |
| # 3. For Linux, place a file in the mount point folder. |
| # 4. Mount the new filesystem using the various combinations |
| # - zfs set mountpoint=<identical path> <filesystem> |
| # - zfs set mountpoint=<top path> <filesystem> |
| # 5. Verify that mount failed with return code of 1. |
| # 6. For Linux, also set overlay=on and verify the mount is |
| # allowed. |
| # |
| |
| verify_runnable "both" |
| |
| function cleanup |
| { |
| log_must force_unmount $TESTPOOL/$TESTFS |
| |
| datasetexists $TESTPOOL/$TESTFS1 && \ |
| cleanup_filesystem $TESTPOOL $TESTFS1 |
| |
| [[ -d $TESTDIR ]] && \ |
| log_must rm -rf $TESTDIR |
| log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS |
| log_must force_unmount $TESTPOOL/$TESTFS |
| |
| return 0 |
| } |
| |
| typeset -i ret=0 |
| |
| log_assert "Verify that 'zfs $mountcmd <filesystem>'" \ |
| "where the mountpoint is identical or on top of an existing one" \ |
| "will fail with return code 1." |
| |
| log_onexit cleanup |
| |
| unmounted $TESTPOOL/$TESTFS || \ |
| log_must force_unmount $TESTPOOL/$TESTFS |
| |
| [[ -d $TESTDIR ]] && \ |
| log_must rm -rf $TESTDIR |
| |
| typeset -i MAXDEPTH=3 |
| typeset -i depth=0 |
| typeset mtpt=$TESTDIR |
| |
| while (( depth < MAXDEPTH )); do |
| mtpt=$mtpt/$depth |
| (( depth = depth + 1)) |
| done |
| |
| log_must zfs set mountpoint=$mtpt $TESTPOOL/$TESTFS |
| log_must zfs $mountcmd $TESTPOOL/$TESTFS |
| |
| if is_linux; then |
| log_must zfs set overlay=off $TESTPOOL/$TESTFS |
| touch $mtpt/file.1 |
| log_must ls -l $mtpt | grep file |
| fi |
| |
| mounted $TESTPOOL/$TESTFS || \ |
| log_unresolved "Filesystem $TESTPOOL/$TESTFS is unmounted" |
| |
| log_must zfs create $TESTPOOL/$TESTFS1 |
| |
| unmounted $TESTPOOL/$TESTFS1 || \ |
| log_must force_unmount $TESTPOOL/$TESTFS1 |
| |
| while [[ $depth -gt 0 ]] ; do |
| (( depth == MAXDEPTH )) && \ |
| log_note "Verify that 'zfs $mountcmd <filesystem>'" \ |
| "with a mountpoint that is identical to an existing one" \ |
| "will fail with return code 1." |
| |
| log_must zfs set mountpoint=$mtpt $TESTPOOL/$TESTFS1 |
| log_note "zfs $mountcmd $TESTPOOL/$TESTFS1" |
| |
| log_mustnot zfs $mountcmd $TESTPOOL/$TESTFS1 |
| |
| # For Linux, test the overlay=on feature which allows |
| # mounting of non-empty directory. |
| if is_linux; then |
| log_must zfs set overlay=on $TESTPOOL/$TESTFS1 |
| log_must zfs $mountcmd $TESTPOOL/$TESTFS1 |
| log_must force_unmount $TESTPOOL/$TESTFS1 |
| log_must zfs set overlay=off $TESTPOOL/$TESTFS1 |
| fi |
| |
| unmounted $TESTPOOL/$TESTFS1 || \ |
| log_fail "Filesystem $TESTPOOL/$TESTFS1 is mounted." |
| |
| mtpt=${mtpt%/*} |
| |
| (( depth == MAXDEPTH )) && \ |
| log_note "Verify that 'zfs $mountcmd <filesystem>'" \ |
| "with a mountpoint on top of an existing one" \ |
| "will fail with return code 1." |
| (( depth = depth - 1 )) |
| done |
| |
| log_pass "'zfs $mountcmd <filesystem>'" \ |
| "with a mountpoint that is identical or on top of an existing one" \ |
| "will fail with return code 1." |