package/block-mount/files/block.sh

   1 #!/bin/sh
   2 # Copyright 2010 Vertical Communications
   3 # This is free software, licensed under the GNU General Public License v2.
   4 # See /LICENSE for more information.
   5 #
   6
   7 . /etc/functions.sh
   8
   9 reset_block_cb() {
  10         mount_cb() {
  11                 dmc_mount_cfg="$1"
  12                 shift # skip optional param
  13                 dmc_target="$2"
  14                 dmc_mount_device="$3"
  15                 dmc_fstype="$4"
  16                 dmc_options="$5"
  17                 dmc_enabled="$6"
  18                 dmc_enabled_fsck="$7"
  19                 dmc_uuid="$8"
  20                 dmc_label="$9"
  21                 shift
  22                 dmc_is_rootfs="$9"
  23                 return 0
  24         }
  25         swap_cb() {
  26                 dsc_swap_cfg="$1"
  27                 shift # skip optional param
  28                 dsc_swap_device="$2"
  29                 dsc_enabled="$3"
  30                 dsc_uuid="$4"
  31                 dsc_label="$5"
  32                 return 0
  33         }
  34 }
  35 reset_block_cb
  36
  37 reset_dev_section_cb() {
  38         mount_dev_section_cb() {
  39                 dmds_mount_cfg="$1"
  40                 dmds_mount_target="$2"
  41                 dmds_mount_device="$3"
  42                 dmds_mount_fstype="$4"
  43                 dmds_mount_options="$5"
  44                 dmds_mount_enabled="$6"
  45                 dmds_mount_enabled_fsck="$7"
  46                 dmds_mount_uuid="$8"
  47                 dmds_mount_label="$9"
  48                 shift
  49                 dmds_is_rootfs="$9"
  50                 return 0
  51         }
  52         swap_dev_section_cb() {
  53                 dsds_swap_cfg="$1"
  54                 dsds_swap_device="$2"
  55                 dsds_swap_enabled="$3"
  56                 dsds_swap_uuid="$4"
  57                 dsds_swap_label="$5"
  58                 return 0
  59         }
  60 }
  61 reset_dev_section_cb
  62
  63 config_get_mount() {
  64         local gm_cfg="$1"
  65         local gm_param="$2"
  66         local gm_target
  67         local gm_device
  68         local gm_fstype
  69         local gm_options
  70         local gm_enabled
  71         local gm_enabled_fsck
  72         local gm_uuid
  73         local gm_label
  74         local gm_is_rootfs
  75         config_get gm_target "$1" target
  76         config_get gm_device "$1" device
  77         config_get gm_fstype "$1" fstype 'auto'
  78         config_get gm_options "$1" options 'rw'
  79         config_get_bool gm_enabled "$1" enabled 1
  80         config_get_bool gm_enabled_fsck "$1" enabled_fsck 0
  81         config_get gm_uuid "$1" uuid
  82         config_get gm_label "$1" label
  83         config_get_bool gm_is_rootfs "$1" is_rootfs 0
  84         mount_cb "$gm_cfg" "$gm_param" "$gm_target" "$gm_device" "$gm_fstype" "$gm_options" "$gm_enabled" "$gm_enabled_fsck" "$gm_uuid" "$gm_label" "$gm_is_rootfs"
  85 }
  86
  87 config_get_swap() {
  88         local gs_cfg="$1"
  89         local gs_param="$2"
  90         local gs_device
  91         local gs_enabled
  92         local gs_uuid
  93         local gs_label
  94         config_get gs_device "$1" device
  95         config_get_bool gs_enabled "$1" enabled 1
  96         config_get gs_uuid "$1" uuid
  97         config_get gs_label "$1" label
  98
  99         swap_cb "$gs_cfg" "$gs_param" "$gs_device" "$gs_enabled" "$gs_uuid" "$gs_label"
 100 }
 101
 102 config_get_automount() {
 103         config_load fstab
 104         config_get_bool from_fstab "automount" from_fstab 1
 105         config_get_bool anon_mount "automount" anon_mount 1
 106         config_get_bool anon_fsck "automount" anon_fsck 0
 107 }
 108
 109 config_get_autoswap() {
 110         config_load fstab
 111         config_get_bool from_fstab "autoswap" from_fstab 1
 112         config_get_bool anon_swap "autoswap" anon_swap 0
 113 }
 114
 115 config_create_swap_fstab_entry() {
 116         local device="$1"
 117         local enabled="$2"
 118
 119         [ -n "$device" ] || return 0
 120
 121         local fstabnew
 122
 123         mkdir -p /var/lock
 124         lock -w /var/lock/fstab.lck && {
 125                 lock /var/lock/fstab.lck
 126                 fstabnew="$(mktemp -t '.fstab.XXXXXXXX')"
 127                 cat /tmp/fstab | grep -E -v "^$device[[:blank:]]" >>"$fstabnew"
 128                 [ "$enabled" -eq 1 ] && echo "$device   none    swap    sw      0       0" >> "$fstabnew"
 129                 cat "$fstabnew" >/tmp/fstab
 130                 rm -f $fstabnew
 131                 lock -u /var/lock/fstab.lck
 132         }
 133 }
 134
 135 config_create_mount_fstab_entry() {
 136         local device="$1"
 137         local target="$2"
 138         local fstype="$3"
 139         local options="$4"
 140         local enabled="$5"
 141         options="${options:-rw}"
 142         [ "$enabled" -eq 0 ] && options="noauto,$options"
 143         [ -n "$target" ] || return 0
 144         [ -n "$device" ] || return 0
 145
 146         local fstabnew
 147
 148         mkdir -p /var/lock
 149         lock -w /var/lock/fstab.lck && {
 150                 lock /var/lock/fstab.lck
 151                 fstabnew="$(mktemp -t '.fstab.XXXXXXXX')"
 152                 cat /tmp/fstab | grep -E -v "^$device[[:blank:]]" | grep -v "$target" >>"$fstabnew"
 153                 echo "$device   $target $fstype $options        0       0" >>"$fstabnew"
 154                 cat "$fstabnew" >/tmp/fstab
 155                 rm -f $fstabnew
 156                 lock -u /var/lock/fstab.lck
 157         }
 158 }
 159
 160 libmount_find_token() {
 161         local token="$1"
 162         local value="$2"
 163         local device
 164         device="$(blkid | grep "$token=\"$value\"" | cut -f1 -d:)"
 165         echo "$device"
 166 }
 167
 168 libmount_find_device_by_id() {
 169         local uuid="$1"
 170         local label="$2"
 171         local device="$3"
 172         local cfg_device="$4"
 173         local found_device
 174
 175         if [ -n "$uuid" ]; then
 176                 found_device="$(libmount_find_token "UUID" "$uuid")"
 177         elif [ -n "$label" ]; then
 178                 found_device="$(libmount_find_token "LABEL" "$label")"
 179         elif [ "$device" = "$cfg_device" ]; then
 180                 found_device="$device"
 181         elif [ -z "$device" ] && [ -e "$cfg_device" ]; then
 182                 found_device="$cfg_device"
 183         fi
 184         [ -n "$device" ] && [ "$device" != "$found_device" ] && {
 185                 found_device=""
 186         }
 187         echo "$found_device"
 188 }
 189
 190 config_get_mount_section_by_device() {
 191         local msbd_device="$1"
 192         local msbd_mount_cfg=
 193         local msbd_target=
 194         local msbd_mount_device=
 195         local msbd_fstype=
 196         local msbd_options=
 197         local msbd_enabled=
 198         local msbd_enabled_fsck=
 199         local msbd_uuid=
 200         local msbd_label=
 201         local msbd_is_rootfs
 202         local msbd_blkid_fstype_match=
 203         mount_cb() {
 204                 local mc_cfg="$1"
 205                 local mc_device="$2"
 206                 shift
 207                 local mc_target="$2"
 208                 local mc_cfgdevice="$3"
 209                 local mc_fstype="$4"
 210                 local mc_uuid="$8"
 211                 local mc_label="$9"
 212                 shift
 213                 local mc_is_rootfs="$9"
 214                 local mc_found_device=""
 215
 216                 mc_found_device="$(libmount_find_device_by_id "$mc_uuid" "$mc_label" "$mc_device" "$mc_cfgdevice")"
 217                 if [ -n "$mc_found_device" ]; then
 218                         msbd_mount_cfg="$mc_cfg"
 219                         msbd_target="$mc_target"
 220                         msbd_mount_device="$mc_found_device"
 221                         msbd_fstype="$mc_fstype"
 222                         msbd_options="$4"
 223                         msbd_enabled="$5"
 224                         msbd_enabled_fsck="$6"
 225                         msbd_uuid="$7"
 226                         msbd_label="$8"
 227                         msbd_is_rootfs="$9"
 228                 fi
 229                 return 0
 230         }
 231         config_foreach config_get_mount mount "$msbd_device"
 232         [ -n "$msbd_mount_device" ] && config_create_mount_fstab_entry "$msbd_mount_device" "$msbd_target" "$msbd_fstype" "$msbd_options" "$msbd_enabled"
 233         mount_dev_section_cb "$msbd_mount_cfg" "$msbd_target" "$msbd_mount_device" "$msbd_fstype" "$msbd_options" "$msbd_enabled" "$msbd_enabled_fsck" "$msbd_uuid" "$msbd_label" "$msbd_is_rootfs"
 234         reset_block_cb
 235 }
 236
 237 config_get_swap_section_by_device() {
 238         local ssbd_device="$1"
 239         local ssbd_swap_cfg=
 240         local ssbd_swap_device=
 241         local ssbd_enabled=
 242         local ssbd_uuid=
 243         local ssbd_label=
 244         swap_cb() {
 245                 local sc_cfg="$1"
 246                 local sc_device="$2"
 247                 local sc_uuid="$5"
 248                 local sc_label="$6"
 249                 local sc_cfgdevice="$3"
 250                 local sc_found_device
 251
 252                 sc_found_device="$(libmount_find_device_by_id "$sc_uuid" "$sc_label" "$sc_device" "$sc_cfgdevice")"
 253                 if [ -n "$sc_found_device" ]; then
 254                         ssbd_swap_cfg="$sc_cfg"
 255                         ssbd_swap_device="$sc_found_device"
 256                         ssbd_enabled="$4"
 257                         ssbd_uuid="$5"
 258                         ssbd_label="$6"
 259                 fi
 260                 return 0
 261         }
 262         config_foreach config_get_swap swap "$ssbd_device"
 263         [ -n "$ssbd_swap_device" ] && config_create_swap_fstab_entry "$ssbd_swap_device" "$ssbd_enabled"
 264         swap_dev_section_cb "$ssbd_swap_cfg" "$ssbd_swap_device" "$ssbd_enabled" "$ssbd_uuid" "$ssbd_label"
 265         reset_block_cb
 266 }
 267
 268