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: mdconfig2 30# REQUIRE: mountcritremote 31# BEFORE: SERVERS 32 33. /etc/rc.subr 34 35name="mdconfig2" 36desc="Create and control memory disks" 37stop_cmd="mdconfig2_stop" 38start_cmd="mdconfig2_start" 39start_precmd='[ -n "${_mdconfig2_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 _mounted="no" 72 _dev="/dev/${_md}" 73 eval _config=\$mdconfig_${_md} 74 eval _owner=\$mdconfig_${_md}_owner 75 eval _perms=\$mdconfig_${_md}_perms 76 eval _files=\$mdconfig_${_md}_files 77 eval _populate=\$mdconfig_${_md}_cmd 78 79 _type=${_config##*-t\ } 80 _type=${_type%%\ *} 81 if [ -z "${_type}" ]; then 82 err 1 "You need to specify \"-t <type>\" in mdconfig_${_md}" 83 fi 84 85 if [ "${_type}" = "vnode" ]; then 86 _file=${_config##*-f\ } 87 _file=${_file%%\ *} 88 if [ -z "${_file}" ]; then 89 err 2 "You need to specify \"-f <file>\" in mdconfig_${_md} for vnode devices" 90 fi 91 92 if [ "${_file}" != "${_file%.uzip}" ]; then 93 _dev="/dev/${_md}.uzip" 94 fi 95 for _i in `df ${_file} 2>/dev/null`; do _fs=${_i}; done 96 fi 97 98 # Debugging help. 99 debug "${_md} config: ${_config}" 100 debug "${_md} type: ${_type}" 101 debug "${_md} dev: ${_dev}" 102 debug "${_md} file: ${_file}" 103 debug "${_md} fs: ${_fs}" 104 debug "${_md} owner: ${_owner}" 105 debug "${_md} perms: ${_perms}" 106 debug "${_md} files: ${_files}" 107 debug "${_md} populate cmd: ${_populate}" 108} 109 110mdconfig2_start() 111{ 112 local _md _fs _mp _mounted _dev _config _type _file _owner _perms _files _populate _fsck_cmd _i 113 114 for _md in ${_mdconfig2_list}; do 115 init_variables ${_md} 116 if [ ! -r ${_file} ]; then 117 err 3 "${_file} doesn't exist" 118 continue 119 fi 120 # First pass: create md(4) vnode devices from files stored on 121 # non-root partition. Swap and malloc md(4) devices have already 122 # been created. 123 if [ "${_type}" = "vnode" -a "${_fs}" != "/" ]; then 124 if [ "${_file}" != "${_file%.uzip}" ]; then 125 load_kld -m g_uzip geom_uzip || return 3 126 fi 127 if is_readonly ${_fs}; then 128 warn "${_fs} is mounted read-only, skipping ${_md}." 129 continue 130 fi 131 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 132 err 3 "${_md} already exists" 133 fi 134 echo "Creating ${_md} device (${_type})." 135 if ! mdconfig -a ${_config} -u ${_md}; then 136 echo "Creating ${_md} device failed, moving on." 137 continue 138 fi 139 # Skip fsck for uzip devices. 140 if [ "${_file}" != "${_file%.uzip}" ]; then 141 _fsck_cmd=":" 142 elif checkyesno background_fsck; then 143 _fsck_cmd="fsck -F" 144 else 145 _fsck_cmd="fsck" 146 fi 147 if ! eval ${_fsck_cmd} -p ${_dev} >/dev/null; then 148 echo "Fsck failed on ${_dev}, not mounting the filesystem." 149 continue 150 fi 151 if mount -d ${_dev} >/dev/null 2>&1; then 152 echo "Mounting ${_dev}." 153 mount ${_dev} 154 fi 155 fi 156 157 for _i in `df ${_dev} 2>/dev/null`; do _mp=${_i}; done 158 if [ ! -z "${_mp}" -a "${_mp}" = "${_mp%%%}" ]; then 159 _mounted="yes" 160 fi 161 162 if checkyesno _mounted; then 163 # Second pass: change permissions and ownership. 164 [ -z "${_owner}" ] || chown -f ${_owner} ${_dev} ${_mp} 165 [ -z "${_perms}" ] || chmod -f ${_perms} ${_dev} ${_mp} 166 167 # Third pass: populate with foreign files. 168 if [ -n "${_files}" -o -n "${_populate}" ]; then 169 echo "Populating ${_dev}." 170 fi 171 if [ -n "${_files}" ]; then 172 cp -Rp ${_files} ${_mp} 173 fi 174 if [ -n "${_populate}" ]; then 175 eval ${_populate} 176 fi 177 fi 178 done 179} 180 181mdconfig2_stop() 182{ 183 local _md _fs _mp _mounted _dev _config _type _file _owner _perms _files _populate 184 185 for _md in ${_mdconfig2_list}; do 186 init_variables ${_md} 187 if [ "${_type}" = "vnode" ]; then 188 for i in `df ${_dev} 2>/dev/null`; do _mp=$i; done 189 if [ ! -r "${_file}" -o "${_fs}" = "/" ]; then 190 continue 191 fi 192 if [ -z "${_mp}" -o "${_mp}" != "${_mp%%%}" ]; then 193 echo "Device ${_dev} isn't mounted." 194 else 195 echo "Umounting ${_dev}." 196 umount ${_dev} 197 fi 198 if mdconfig -l -u ${_md} >/dev/null 2>&1; then 199 echo "Destroying ${_md}." 200 mdconfig -d -u ${_md} 201 fi 202 fi 203 done 204} 205 206_mdconfig2_cmd="$1" 207if [ $# -gt 0 ]; then 208 shift 209fi 210[ -n "$*" ] && _mdconfig2_list="$*" 211 212load_rc_config $name 213 214if [ -z "${_mdconfig2_list}" ]; then 215 for _mdconfig2_config in `list_vars mdconfig_md[0-9]\* | 216 sort_lite -nk1.12` 217 do 218 _mdconfig2_unit=${_mdconfig2_config#mdconfig_md} 219 [ "${_mdconfig2_unit#*[!0-9]}" = "$_mdconfig2_unit" ] || 220 continue 221 _mdconfig2_list="$_mdconfig2_list md$_mdconfig2_unit" 222 done 223 _mdconfig2_list="${_mdconfig2_list# }" 224fi 225 226run_rc_command "${_mdconfig2_cmd}" 227