HardenedBSD/contrib/netbsd-tests/fs/h_funcs.subr
Mitchell Horne 6955543a88 tmpfs tests: check for built-in tmpfs module
As of r363471, tmpfs is included in all GENERIC kernel configs. This
results in a warning being emitted for each call to kldload(8):

module_register: cannot register tmpfs from tmpfs.ko; already loaded from kernel

Check for the presence of the module via kldstat first to quiet this
warning.

Reviewed by:	asomers, arichardson
Differential Revision:	https://reviews.freebsd.org/D26632
2020-10-02 00:52:31 +00:00

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#!/bin/sh
#
# $NetBSD: h_funcs.subr,v 1.3 2010/06/23 11:19:17 pooka Exp $
#
# Copyright (c) 2007 The NetBSD Foundation, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# require_fs name
#
# Checks that the given file system is built into the kernel and
# that its corresponding mount(8) utility is available. Otherwise
# skips the test.
#
require_fs() {
local name
local autoload
name="${1}"
atf_require_prog mount
atf_require_prog mount_${name}
atf_require_prog umount
# Begin FreeBSD
if true; then
if kldstat -qm ${name} || kldload -n ${name}; then
found=yes
else
found=no
fi
else
# End FreeBSD
# if we have autoloadable modules, just assume the file system
atf_require_prog sysctl
autoload=$(sysctl -n kern.module.autoload)
[ "${autoload}" = "1" ] && return 0
set -- $(sysctl -n vfs.generic.fstypes)
found=no
while [ ${#} -gt 1 ]; do
if [ ${1} = ${name} ]; then
found=yes
break
fi
shift
done
# Begin FreeBSD
fi
# End FreeBSD
[ ${found} = yes ] || \
atf_skip "The kernel does not include support the " \
"\`${name}' file system"
}