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# 28 29# PROVIDE: mdconfig 30# REQUIRE: swap root 31 32. /etc/rc.subr 33 34name="mdconfig" 35desc="Create and control memory disks" 36stop_cmd="mdconfig_stop" 37start_cmd="mdconfig_start" 38start_precmd='[ -n "${_mdconfig_list}" ]' 39required_modules="geom_md:g_md" 40 41is_readonly() 42{ 43 local _mp _ret 44 45 _mp=$1 46 _ret=`mount | while read _line; do 47 case ${_line} in 48 *" ${_mp} "*read-only*) 49 echo "yes" 50 ;; 51 52 *) 53 ;; 54 esac; 55 done` 56 57 if [ -n "${_ret}" ]; then 58 return 0 59 else 60 return 1 61 fi 62} 63 64init_variables() 65{ 66 local _i 67 68 _fs="" 69 _mp="" 70 _dev="/dev/${_md}" 71 eval _config=\$mdconfig_${_md} 72 eval _newfs=\$mdconfig_${_md}_newfs 73 74 _type=${_config##*-t\ } 75 _type=${_type%%\ *} 76 if [ -z "${_type}" ]; then 77 err 1 "You need to specify \"-t <type>\" in mdconfig_${_md}" 78 fi 79 80 if [ "${_type}" = "vnode" ]; then 81 _file=${_config##*-f\ } 82 _file=${_file%%\ *} 83 if [ -z "${_file}" ]; then 84 err 2 "You need to specify \"-f <file>\" in mdconfig_${_md} for vnode devices" 85 fi 86 if [ "${_file}" != "${_file%.uzip}" ]; then 87 _dev="/dev/${_md}.uzip" 88 fi 89 for _i in `df ${_file} 2>/dev/null`; do _fs=${_i}; done 90 fi 91 92 # Debugging help. 93 debug "${_md} config: ${_config}" 94 debug "${_md} type: ${_type}" 95 debug "${_md} dev: ${_dev}" 96 debug "${_md} file: ${_file}" 97 debug "${_md} fs: ${_fs}" 98 debug "${_md} newfs flags: ${_newfs}" 99} 100 101mdconfig_start() 102{ 103 local _md _mp _config _type _dev _file _fs _newfs _fsck_cmd 104 105 for _md in ${_mdconfig_list}; do 106 init_variables ${_md} 107 # Create md(4) devices of types swap, malloc and vnode if the 108 # file is on the root partition. 109 if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then 110 if [ "${_type}" = "vnode" ]; then 111 if is_readonly ${_fs}; then 112 warn "${_fs} is mounted read-only, skipping ${_md}." 113 continue 114 fi 115 if [ "${_file}" != "${_file%.uzip}" ]; then 116 load_kld -m g_uzip geom_uzip || return 3 117 # sleep a bit to allow creation of /dev/mdX.uzip 118 sleep 2 119 fi 120 fi 121 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 122 err 3 "${_md} already exists" 123 fi 124 echo "Creating ${_md} device (${_type})." 125 if ! mdconfig -a ${_config} -u ${_md}; then 126 echo "Creating ${_md} device failed, moving on." 127 continue 128 fi 129 # Skip fsck for uzip devices. 130 if [ "${_type}" = "vnode" ]; then 131 if [ "${_file}" != "${_file%.uzip}" ]; then 132 _fsck_cmd=":" 133 elif checkyesno background_fsck; then 134 _fsck_cmd="fsck -F" 135 else 136 _fsck_cmd="fsck" 137 fi 138 if ! eval ${_fsck_cmd} -p ${_dev} >/dev/null; then 139 echo "Fsck failed on ${_dev}, not mounting the filesystem." 140 continue 141 142 fi 143 else 144 newfs ${_newfs} ${_dev} >/dev/null 145 fi 146 if mount -d ${_dev} 2>&1 >/dev/null; then 147 echo "Mounting ${_dev}." 148 mount ${_dev} 149 fi 150 fi 151 done 152} 153 154mdconfig_stop() 155{ 156 local _md _mp _config _type _dev _file _fs _newfs _i 157 158 for _md in ${_mdconfig_list}; do 159 init_variables ${_md} 160 if [ "${_type}" != "vnode" -o "${_fs}" = "/" ]; then 161 for _i in `df ${_dev} 2>/dev/null`; do _mp=${_i}; done 162 if [ -z "${_mp}" -o "${_mp}" != "${_mp%%%}" ]; then 163 echo "Device ${_dev} isn't mounted." 164 else 165 echo "Umounting ${_dev}." 166 umount ${_dev} 167 fi 168 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 169 echo "Destroying ${_md}." 170 mdconfig -d -u ${_md} 171 fi 172 fi 173 done 174} 175 176_mdconfig_cmd="$1" 177if [ $# -gt 0 ]; then 178 shift 179fi 180[ -n "$*" ] && _mdconfig_list="$*" 181 182load_rc_config $name 183 184if [ -z "${_mdconfig_list}" ]; then 185 for _mdconfig_config in `list_vars mdconfig_md[0-9]\* | 186 sort_lite -nk1.12` 187 do 188 _mdconfig_unit=${_mdconfig_config#mdconfig_md} 189 [ "${_mdconfig_unit#*[!0-9]}" = "$_mdconfig_unit" ] || 190 continue 191 _mdconfig_list="$_mdconfig_list md$_mdconfig_unit" 192 done 193 _mdconfig_list="${_mdconfig_list# }" 194fi 195 196run_rc_command "${_mdconfig_cmd}" 197