#!/bin/sh
#
# Copyright (c) 2006 The FreeBSD Project
# 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 AUTHOR 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 AUTHOR 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.
#
#
# PROVIDE: mdconfig
# REQUIRE: swap root
. /etc/rc.subr
name="mdconfig"
desc="Create and control memory disks"
stop_cmd="mdconfig_stop"
start_cmd="mdconfig_start"
start_precmd='[ -n "${_mdconfig_list}" ]'
required_modules="geom_md:g_md"
is_readonly()
{
local _mp _ret
_mp=$1
_ret=`mount | while read _line; do
case ${_line} in
*" ${_mp} "*read-only*)
echo "yes"
;;
*)
;;
esac;
done`
if [ -n "${_ret}" ]; then
return 0
else
return 1
fi
}
init_variables()
{
local _i
_fs=""
_mp=""
_dev="/dev/${_md}"
eval _config=\$mdconfig_${_md}
eval _newfs=\$mdconfig_${_md}_newfs
_type=${_config##*-t\ }
_type=${_type%%\ *}
if [ -z "${_type}" ]; then
err 1 "You need to specify \"-t <type>\" in mdconfig_${_md}"
fi
if [ "${_type}" = "vnode" ]; then
_file=${_config##*-f\ }
_file=${_file%%\ *}
if [ -z "${_file}" ]; then
err 2 "You need to specify \"-f <file>\" in mdconfig_${_md} for vnode devices"
fi
if [ "${_file}" != "${_file%.uzip}" ]; then
_dev="/dev/${_md}.uzip"
fi
for _i in `df ${_file} 2>/dev/null`; do _fs=${_i}; done
fi
# Debugging help.
debug "${_md} config: ${_config}"
debug "${_md} type: ${_type}"
debug "${_md} dev: ${_dev}"
debug "${_md} file: ${_file}"
debug "${_md} fs: ${_fs}"
debug "${_md} newfs flags: ${_newfs}"
}
mdconfig_start()
{
local _md _mp _config _type _dev _file _fs _newfs _fsck_cmd
for _md in ${_mdconfig_list}; do
init_variables ${_md}
# Create md(4) devices of types swap, malloc and vnode if the
# file is on the root partition.
if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then
if [ "${_type}" = "vnode" ]; then
if is_readonly ${_fs}; then
warn "${_fs} is mounted read-only, skipping ${_md}."
continue
fi
if [ "${_file}" != "${_file%.uzip}" ]; then
load_kld -m g_uzip geom_uzip || return 3
# sleep a bit to allow creation of /dev/mdX.uzip
sleep 2
fi
fi
if mdconfig -l -u ${_md} >/dev/null 2>&1; then
err 3 "${_md} already exists"
fi
echo "Creating ${_md} device (${_type})."
if ! mdconfig -a ${_config} -u ${_md}; then
echo "Creating ${_md} device failed, moving on."
continue
fi
# Skip fsck for uzip devices.
if [ "${_type}" = "vnode" ]; then
if [ "${_file}" != "${_file%.uzip}" ]; then
_fsck_cmd=":"
elif checkyesno background_fsck; then
_fsck_cmd="fsck -F"
else
_fsck_cmd="fsck"
fi
if ! eval ${_fsck_cmd} -p ${_dev} >/dev/null; then
echo "Fsck failed on ${_dev}, not mounting the filesystem."
continue
fi
else
newfs ${_newfs} ${_dev} >/dev/null
fi
if mount -d ${_dev} 2>&1 >/dev/null; then
echo "Mounting ${_dev}."
mount ${_dev}
fi
fi
done
}
mdconfig_stop()
{
local _md _mp _config _type _dev _file _fs _newfs _i
for _md in ${_mdconfig_list}; do
init_variables ${_md}
if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then
for _i in `df ${_dev} 2>/dev/null`; do _mp=${_i}; done
if [ -z "${_mp}" -o "${_mp}" != "${_mp%%%}" ]; then
echo "Device ${_dev} isn't mounted."
else
echo "Umounting ${_dev}."
umount ${_dev}
fi
if mdconfig -l -u ${_md} >/dev/null 2>&1; then
echo "Destroying ${_md}."
mdconfig -d -u ${_md}
fi
fi
done
}
_mdconfig_cmd="$1"
if [ $# -gt 0 ]; then
shift
fi
[ -n "$*" ] && _mdconfig_list="$*"
load_rc_config $name
if [ -z "${_mdconfig_list}" ]; then
for _mdconfig_config in `list_vars mdconfig_md[0-9]\* |
sort_lite -nk1.12`
do
_mdconfig_unit=${_mdconfig_config#mdconfig_md}
[ "${_mdconfig_unit#*[!0-9]}" = "$_mdconfig_unit" ] ||
continue
_mdconfig_list="$_mdconfig_list md$_mdconfig_unit"
done
_mdconfig_list="${_mdconfig_list# }"
fi
run_rc_command "${_mdconfig_cmd}"
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