1#!/bin/sh 2# 3# Copyright (c) 2006 The FreeBSD Project 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28# 29 30# PROVIDE: mdconfig 31# REQUIRE: swap root 32 33. /etc/rc.subr 34 35name="mdconfig" 36desc="Create and control memory disks" 37stop_cmd="mdconfig_stop" 38start_cmd="mdconfig_start" 39start_precmd='[ -n "${_mdconfig_list}" ]' 40required_modules="geom_md:g_md" 41 42is_readonly() 43{ 44 local _mp _ret 45 46 _mp=$1 47 _ret=`mount | while read _line; do 48 case ${_line} in 49 *" ${_mp} "*read-only*) 50 echo "yes" 51 ;; 52 53 *) 54 ;; 55 esac; 56 done` 57 58 if [ -n "${_ret}" ]; then 59 return 0 60 else 61 return 1 62 fi 63} 64 65init_variables() 66{ 67 local _i 68 69 _fs="" 70 _mp="" 71 _dev="/dev/${_md}" 72 eval _config=\$mdconfig_${_md} 73 eval _newfs=\$mdconfig_${_md}_newfs 74 75 _type=${_config##*-t\ } 76 _type=${_type%%\ *} 77 if [ -z "${_type}" ]; then 78 err 1 "You need to specify \"-t <type>\" in mdconfig_${_md}" 79 fi 80 81 if [ "${_type}" = "vnode" ]; then 82 _file=${_config##*-f\ } 83 _file=${_file%%\ *} 84 if [ -z "${_file}" ]; then 85 err 2 "You need to specify \"-f <file>\" in mdconfig_${_md} for vnode devices" 86 fi 87 if [ "${_file}" != "${_file%.uzip}" ]; then 88 _dev="/dev/${_md}.uzip" 89 fi 90 for _i in `df ${_file} 2>/dev/null`; do _fs=${_i}; done 91 fi 92 93 # Debugging help. 94 debug "${_md} config: ${_config}" 95 debug "${_md} type: ${_type}" 96 debug "${_md} dev: ${_dev}" 97 debug "${_md} file: ${_file}" 98 debug "${_md} fs: ${_fs}" 99 debug "${_md} newfs flags: ${_newfs}" 100} 101 102mdconfig_start() 103{ 104 local _md _mp _config _type _dev _file _fs _newfs _fsck_cmd 105 106 for _md in ${_mdconfig_list}; do 107 init_variables ${_md} 108 # Create md(4) devices of types swap, malloc and vnode if the 109 # file is on the root partition. 110 if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then 111 if [ "${_type}" = "vnode" ]; then 112 if is_readonly ${_fs}; then 113 warn "${_fs} is mounted read-only, skipping ${_md}." 114 continue 115 fi 116 if [ "${_file}" != "${_file%.uzip}" ]; then 117 load_kld -m g_uzip geom_uzip || return 3 118 # sleep a bit to allow creation of /dev/mdX.uzip 119 sleep 2 120 fi 121 fi 122 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 123 err 3 "${_md} already exists" 124 fi 125 echo "Creating ${_md} device (${_type})." 126 if ! mdconfig -a ${_config} -u ${_md}; then 127 echo "Creating ${_md} device failed, moving on." 128 continue 129 fi 130 # Skip fsck for uzip devices. 131 if [ "${_type}" = "vnode" ]; then 132 if [ "${_file}" != "${_file%.uzip}" ]; then 133 _fsck_cmd=":" 134 elif checkyesno background_fsck; then 135 _fsck_cmd="fsck -F" 136 else 137 _fsck_cmd="fsck" 138 fi 139 if ! eval ${_fsck_cmd} -p ${_dev} >/dev/null; then 140 echo "Fsck failed on ${_dev}, not mounting the filesystem." 141 continue 142 143 fi 144 else 145 newfs ${_newfs} ${_dev} >/dev/null 146 fi 147 if mount -d ${_dev} 2>&1 >/dev/null; then 148 echo "Mounting ${_dev}." 149 mount ${_dev} 150 fi 151 fi 152 done 153} 154 155mdconfig_stop() 156{ 157 local _md _mp _config _type _dev _file _fs _newfs _i 158 159 for _md in ${_mdconfig_list}; do 160 init_variables ${_md} 161 if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then 162 for _i in `df ${_dev} 2>/dev/null`; do _mp=${_i}; done 163 if [ -z "${_mp}" -o "${_mp}" != "${_mp%%%}" ]; then 164 echo "Device ${_dev} isn't mounted." 165 else 166 echo "Umounting ${_dev}." 167 umount ${_dev} 168 fi 169 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 170 echo "Destroying ${_md}." 171 mdconfig -d -u ${_md} 172 fi 173 fi 174 done 175} 176 177_mdconfig_cmd="$1" 178if [ $# -gt 0 ]; then 179 shift 180fi 181[ -n "$*" ] && _mdconfig_list="$*" 182 183load_rc_config $name 184 185if [ -z "${_mdconfig_list}" ]; then 186 for _mdconfig_config in `list_vars mdconfig_md[0-9]\* | 187 sort_lite -nk1.12` 188 do 189 _mdconfig_unit=${_mdconfig_config#mdconfig_md} 190 [ "${_mdconfig_unit#*[!0-9]}" = "$_mdconfig_unit" ] || 191 continue 192 _mdconfig_list="$_mdconfig_list md$_mdconfig_unit" 193 done 194 _mdconfig_list="${_mdconfig_list# }" 195fi 196 197run_rc_command "${_mdconfig_cmd}" 198