etc/rc.d/mdconfig

   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: localswap
  32 # BEFORE: mountcritlocal
  33
  34 . /etc/rc.subr
  35
  36 name="mdconfig"
  37 stop_cmd="mdconfig_stop"
  38 start_cmd="mdconfig_start"
  39 start_precmd='[ -n "${_mdconfig_list}" ]'
  40 required_modules="geom_md:g_md"
  41
  42 is_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
  65 init_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
 102 mdconfig_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
 155 mdconfig_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"
 178 if [ $# -gt 0 ]; then
 179         shift
 180 fi
 181 [ -n "$*" ] && _mdconfig_list="$*"
 182
 183 load_rc_config $name
 184
 185 _mdconfig_unit=0
 186 if [ -z "${_mdconfig_list}" ]; then
 187         while :; do
 188                 eval _mdconfig_config=\$mdconfig_md${_mdconfig_unit}
 189                 if [ -z "${_mdconfig_config}" ]; then
 190                         break
 191                 else
 192                         _mdconfig_list="${_mdconfig_list}${_mdconfig_list:+ }md${_mdconfig_unit}"
 193                         _mdconfig_unit=$((${_mdconfig_unit} + 1))
 194                 fi
 195         done
 196 fi
 197
 198 run_rc_command "${_mdconfig_cmd}"