#!/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").
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# Copyright 2008 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/xattr/xattr_common.kshlib
#
# DESCRIPTION:
# Creating and writing xattrs on files in snapshot directories fails. Also,
# we shouldn't be able to list the xattrs of files in snapshots who didn't have
# xattrs when the snapshot was created (the xattr namespace wouldn't have been
# created yet, and snapshots are read-only) See fsattr(5) for more details.
#
# STRATEGY:
# 1. Create a file and add an xattr to it.
# 2. Create another file, but don't add an xattr to it.
# 3. Snapshot the filesystem
# 4. Verify we're unable to alter the xattr on the first file
# 5. Verify we're unable to list the xattrs on the second file
#
function cleanup {
log_must zfs destroy $TESTPOOL/$TESTFS@snap
log_must rm $TESTDIR/myfile2.$$
log_must rm $TESTDIR/myfile.$$
log_must rm /tmp/output.$$
[[ -e /tmp/expected_output.$$ ]] && log_must rm \
/tmp/expected_output.$$
}
log_assert "create/write xattr on a snapshot fails"
log_onexit cleanup
# create a file, and an xattr on it
log_must touch $TESTDIR/myfile.$$
create_xattr $TESTDIR/myfile.$$ passwd /etc/passwd
# create another file that doesn't have an xattr
log_must touch $TESTDIR/myfile2.$$
# snapshot the filesystem
log_must zfs snapshot $TESTPOOL/$TESTFS@snap
# we shouldn't be able to alter the first file's xattr
log_mustnot eval " runat $TESTDIR/.zfs/snapshot/snap/myfile.$$ \
cp /etc/passwd . >/tmp/output.$$ 2>&1"
log_must grep -i Read-only /tmp/output.$$
log_must eval "runat $TESTDIR/.zfs/snapshot/snap/myfile2.$$ \
ls >/tmp/output.$$ 2>&1"
create_expected_output /tmp/expected_output.$$ SUNWattr_ro SUNWattr_rw
log_must diff /tmp/output.$$ /tmp/expected_output.$$
log_pass "create/write xattr on a snapshot fails"