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: mdconfig2 31# REQUIRE: mountcritremote 32# BEFORE: SERVERS 33 34. /etc/rc.subr 35 36name="mdconfig2" 37desc="Create and control memory disks" 38stop_cmd="mdconfig2_stop" 39start_cmd="mdconfig2_start" 40start_precmd='[ -n "${_mdconfig2_list}" ]' 41required_modules="geom_md:g_md" 42 43is_readonly() 44{ 45 local _mp _ret 46 47 _mp=$1 48 _ret=`mount | while read _line; do 49 case ${_line} in 50 *" ${_mp} "*read-only*) 51 echo "yes" 52 ;; 53 54 *) 55 ;; 56 esac; 57 done` 58 59 if [ -n "${_ret}" ]; then 60 return 0 61 else 62 return 1 63 fi 64} 65 66init_variables() 67{ 68 local _i 69 70 _fs="" 71 _mp="" 72 _mounted="no" 73 _dev="/dev/${_md}" 74 eval _config=\$mdconfig_${_md} 75 eval _owner=\$mdconfig_${_md}_owner 76 eval _perms=\$mdconfig_${_md}_perms 77 eval _files=\$mdconfig_${_md}_files 78 eval _populate=\$mdconfig_${_md}_cmd 79 80 _type=${_config##*-t\ } 81 _type=${_type%%\ *} 82 if [ -z "${_type}" ]; then 83 err 1 "You need to specify \"-t <type>\" in mdconfig_${_md}" 84 fi 85 86 if [ "${_type}" = "vnode" ]; then 87 _file=${_config##*-f\ } 88 _file=${_file%%\ *} 89 if [ -z "${_file}" ]; then 90 err 2 "You need to specify \"-f <file>\" in mdconfig_${_md} for vnode devices" 91 fi 92 93 if [ "${_file}" != "${_file%.uzip}" ]; then 94 _dev="/dev/${_md}.uzip" 95 fi 96 for _i in `df ${_file} 2>/dev/null`; do _fs=${_i}; done 97 fi 98 99 # Debugging help. 100 debug "${_md} config: ${_config}" 101 debug "${_md} type: ${_type}" 102 debug "${_md} dev: ${_dev}" 103 debug "${_md} file: ${_file}" 104 debug "${_md} fs: ${_fs}" 105 debug "${_md} owner: ${_owner}" 106 debug "${_md} perms: ${_perms}" 107 debug "${_md} files: ${_files}" 108 debug "${_md} populate cmd: ${_populate}" 109} 110 111mdconfig2_start() 112{ 113 local _md _fs _mp _mounted _dev _config _type _file _owner _perms _files _populate _fsck_cmd _i 114 115 for _md in ${_mdconfig2_list}; do 116 init_variables ${_md} 117 if [ ! -r ${_file} ]; then 118 err 3 "${_file} doesn't exist" 119 continue 120 fi 121 # First pass: create md(4) vnode devices from files stored on 122 # non-root partition. Swap and malloc md(4) devices have already 123 # been created. 124 if [ "${_type}" = "vnode" -a "${_fs}" != "/" ]; then 125 if [ "${_file}" != "${_file%.uzip}" ]; then 126 load_kld -m g_uzip geom_uzip || return 3 127 fi 128 if is_readonly ${_fs}; then 129 warn "${_fs} is mounted read-only, skipping ${_md}." 130 continue 131 fi 132 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 133 err 3 "${_md} already exists" 134 fi 135 echo "Creating ${_md} device (${_type})." 136 if ! mdconfig -a ${_config} -u ${_md}; then 137 echo "Creating ${_md} device failed, moving on." 138 continue 139 fi 140 # Skip fsck for uzip devices. 141 if [ "${_file}" != "${_file%.uzip}" ]; then 142 _fsck_cmd=":" 143 elif checkyesno background_fsck; then 144 _fsck_cmd="fsck -F" 145 else 146 _fsck_cmd="fsck" 147 fi 148 if ! eval ${_fsck_cmd} -p ${_dev} >/dev/null; then 149 echo "Fsck failed on ${_dev}, not mounting the filesystem." 150 continue 151 fi 152 if mount -d ${_dev} >/dev/null 2>&1; then 153 echo "Mounting ${_dev}." 154 mount ${_dev} 155 fi 156 fi 157 158 for _i in `df ${_dev} 2>/dev/null`; do _mp=${_i}; done 159 if [ ! -z "${_mp}" -a "${_mp}" = "${_mp%%%}" ]; then 160 _mounted="yes" 161 fi 162 163 if checkyesno _mounted; then 164 # Second pass: change permissions and ownership. 165 [ -z "${_owner}" ] || chown -f ${_owner} ${_dev} ${_mp} 166 [ -z "${_perms}" ] || chmod -f ${_perms} ${_dev} ${_mp} 167 168 # Third pass: populate with foreign files. 169 if [ -n "${_files}" -o -n "${_populate}" ]; then 170 echo "Populating ${_dev}." 171 fi 172 if [ -n "${_files}" ]; then 173 cp -Rp ${_files} ${_mp} 174 fi 175 if [ -n "${_populate}" ]; then 176 eval ${_populate} 177 fi 178 fi 179 done 180} 181 182mdconfig2_stop() 183{ 184 local _md _fs _mp _mounted _dev _config _type _file _owner _perms _files _populate 185 186 for _md in ${_mdconfig2_list}; do 187 init_variables ${_md} 188 if [ "${_type}" = "vnode" ]; then 189 for i in `df ${_dev} 2>/dev/null`; do _mp=$i; done 190 if [ ! -r "${_file}" -o "${_fs}" = "/" ]; then 191 continue 192 fi 193 if [ -z "${_mp}" -o "${_mp}" != "${_mp%%%}" ]; then 194 echo "Device ${_dev} isn't mounted." 195 else 196 echo "Umounting ${_dev}." 197 umount ${_dev} 198 fi 199 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 200 echo "Destroying ${_md}." 201 mdconfig -d -u ${_md} 202 fi 203 fi 204 done 205} 206 207_mdconfig2_cmd="$1" 208if [ $# -gt 0 ]; then 209 shift 210fi 211[ -n "$*" ] && _mdconfig2_list="$*" 212 213load_rc_config $name 214 215if [ -z "${_mdconfig2_list}" ]; then 216 for _mdconfig2_config in `list_vars mdconfig_md[0-9]\* | 217 sort_lite -nk1.12` 218 do 219 _mdconfig2_unit=${_mdconfig2_config#mdconfig_md} 220 [ "${_mdconfig2_unit#*[!0-9]}" = "$_mdconfig2_unit" ] || 221 continue 222 _mdconfig2_list="$_mdconfig2_list md$_mdconfig2_unit" 223 done 224 _mdconfig2_list="${_mdconfig2_list# }" 225fi 226 227run_rc_command "${_mdconfig2_cmd}" 228