contrib/package/remote-update/files/usr/sbin/remote-update

   1 #!/bin/sh
   2
   3 local tempfile=/tmp/remote-upgrade.img
   4 local D2='\([0-9]\{2\}\)'
   5 local D4='\([0-9]\{4\}\)'
   6 local NL='
   7 '
   8
   9 find_architecture()
  10 {
  11         opkg list_installed 'base-files-*' | \
  12                 sed -ne 's/base-files-\([^ ]\+\).*/\1/p'
  13 }
  14
  15 find_image()
  16 {
  17         case "$1" in
  18                 atheros)
  19                         echo "openwrt-atheros-combined.img"
  20                 ;;
  21                 ar71xx)
  22                         echo "openwrt-ar71xx-combined.img"
  23                 ;;
  24                 brcm-2.4)
  25                         echo "openwrt-brcm-2.4-squashfs.trx"
  26                 ;;
  27         esac
  28 }
  29
  30 check_image()
  31 {
  32         local file; for file in /lib/upgrade/*.sh; do . $file; done
  33         if platform_check_image "$1" >/dev/null 2>/dev/null; then
  34                 return 0
  35         fi
  36         return 1
  37 }
  38
  39 find_remote_checksum()
  40 {
  41         wget -qO- ${1%/*}/md5sums 2>/dev/null | \
  42                 sed -ne '/'$2'/ { s/ .*//p }'
  43 }
  44
  45 find_local_checksum()
  46 {
  47         set -- $(md5sum "$tempfile")
  48         echo $1
  49 }
  50
  51 find_remote_info()
  52 {
  53         wget -qO- "${1%/*}/VERSION.txt" 2>/dev/null
  54 }
  55
  56 find_remote_version()
  57 {
  58         find_remote_info "$1" | \
  59                 sed -ne "s!.*$D4/$D2/$D2 $D2:$D2.*!\\1\\2\\3\\4\\5!p;t"
  60 }
  61
  62 find_local_version()
  63 {
  64         if [ -f /rom/etc/banner ]; then
  65                 sed -ne "s!.*$D4/$D2/$D2 $D2:$D2.*!\\1\\2\\3\\4\\5!p;t" \
  66                         /rom/etc/banner
  67         else
  68                 date +"%Y%m%d%H%M" -r /bin/sh
  69         fi
  70 }
  71
  72 stop_service()
  73 {
  74         [ -x /etc/init.d/$1 ] && {
  75                 echo -n "Stopping service $1 ... "
  76                 /etc/init.d/$1 stop >/dev/null 2>/dev/null
  77                 echo "done"
  78         }
  79 }
  80
  81 do_wait()
  82 {
  83         if [ ${1:-0} -gt 0 ]; then
  84                 echo -n "${2:-Waiting} "
  85                 for i in $(seq 1 $1); do
  86                         printf "%-2dseconds" $(($1-$i))
  87                         sleep 1
  88                         echo -en "\b\b\b\b\b\b\b\b\b"
  89                 done
  90                 echo "${NL}"
  91         fi
  92 }
  93
  94 version_compare()
  95 {
  96         local v1="$1"
  97         local v2="$2"
  98
  99         while [ -n "$v1" -o -n "$v2" ]; do
 100                 if [ -z "${v2:0:4}" -o "${v1:0:4}" -gt "${v2:0:4}" ]; then
 101                         return 1
 102                 elif [ -z "${v1:0:4}" -o "${v1:0:4}" -lt "${v2:0:4}" ]; then
 103                         return 2
 104                 fi
 105
 106                 v1="${v1:4}"
 107                 v2="${v2:4}"
 108         done
 109
 110         return 0
 111 }
 112
 113 usage()
 114 {
 115         cat <<EOT
 116
 117 Usage:
 118   remote-update -h
 119   remote-update [-u <update url>] -c
 120   remote-update [-v] [-y] [-u <update url>] -w
 121   remote-update [-d] [-n] [-v] [-y] [-s <sleep seconds>] [-u <update url>]
 122
 123 Actions:
 124   -h    Display this help message and exit.
 125   -c    Check for firmware update and exit.
 126   -w    Fetch image and exit, do not perform flash write.
 127
 128 Options:
 129   -d    Do not detach from terminal.
 130   -n    Do not backup configuration.
 131   -v    Skip verification of downloaded image.
 132   -y    Assume defaults for all questions.
 133
 134   -s <seconds>
 135     Sleep given amount of seconds before starting flash write.
 136     If ommitted and '-y' is not used, 5 seconds are assumed.
 137
 138   -u <url>
 139     Fetch firmware image from given url. A file "md5sums" is expected
 140     in the same remote directory. If there is no such file, use -v to
 141     suppress verification.
 142
 143 EOT
 144
 145         exit 1
 146 }
 147
 148
 149 while getopts "s:u:cdnvwyh" flag; do
 150         case $flag in
 151                 s) sleeptime="$OPTARG";;
 152                 u) updateurl="$OPTARG";;
 153                 c) checkupdate=1;;
 154                 d) nodetach=1;;
 155                 n) nobackup=1;;
 156                 v) noverify=1;;
 157                 w) noflash=1;;
 158                 y) noquestions=1;;
 159                 *) usage;;
 160         esac
 161 done
 162
 163
 164 local image_url="$updateurl"
 165 local image_name="${image_url##*/}"
 166
 167 [ -z "$image_url" ] && {
 168         local arch=$(find_architecture)
 169         local image=$(find_image "$arch")
 170         local repo=$(uci get freifunk.upgrade.repository 2>/dev/null)
 171         repo=${repo:-$(uci get system.upgrade.repository 2>/dev/null)}
 172
 173         [ -z "$arch" ] && {
 174                 echo "Can not determine the current architecture."
 175                 exit 1
 176         }
 177
 178         [ -z "$repo" ] && {
 179                 echo "No repository configured in 'system.upgrade.repository'."
 180                 echo "Use the '-u' flag to specify an image location."
 181                 exit 1
 182         }
 183
 184         [ -z "$image" ] && {
 185                 echo "No suitable image for the '$arch' architecture."
 186                 echo "Your platform is not supported."
 187                 exit 1
 188         }
 189
 190         echo "Architecture: $arch"
 191         echo "Repository:   $repo"
 192
 193         image_name="$image"
 194         image_url="${repo%/}/$arch/$image"
 195 }
 196
 197
 198 if [ "$checkupdate" = 1 ]; then
 199         local v1=$(find_local_version)
 200         local v2=$(find_remote_version "$image_url")
 201
 202         [ -n "$v1" -a -n "$v2" ] && {
 203                 version_compare "$v1" "$v2"
 204                 [ $? == 2 ] && {
 205                         echo "Update available!${NL}Local:  $v1${NL}Remote: $v2${NL}--"
 206                         find_remote_info "$image_url"
 207                         exit 0
 208                 } || {
 209                         echo "Local version $v1 is up to date"
 210                         exit 2
 211                 }
 212         } || {
 213                 echo "No remote time stamp found."
 214                 exit 1
 215         }
 216 else
 217         if [ "$noquestions" != 1 ]; then
 218                 echo -n "${NL}About to download $image_name. Continue? [y] "
 219                 read answer
 220                 case "$answer" in
 221                         [nN]) exit 1;;
 222                 esac
 223         fi
 224
 225         echo -n "Downloading $image_name ... "
 226         rm -f $tempfile
 227         wget -qO $tempfile "$image_url" 2>/dev/null
 228         [ $? == 0 ] && echo done || {
 229                 echo failed
 230                 rm -f $tempfile
 231                 exit 1
 232         }
 233
 234         if [ "$noverify" != 1 ]; then
 235                 echo -n "Verifying $image_name ... "
 236
 237                 local md5_remote=$(find_remote_checksum "$image_url" "$image_name")
 238                 local md5_local=$(find_local_checksum)
 239
 240                 check_image "$tempfile"
 241                 local image_ok=$?
 242
 243                 if [ $image_ok = 0 -a -n "$md5_remote" -a -n "$md5_local" -a "$md5_remote" = "$md5_local" ]; then
 244                         echo "done"
 245                 else
 246                         if [ $image_ok != 0 ]; then
 247                                 echo "unsupported image type"
 248                         else
 249                                 echo "checksum mismatch! (local:${md5_local:-(none)} remote:${md5_remote:-(none)})"
 250                         fi
 251
 252                         local answer=n
 253                         if [ "$noquestions" != 1 ]; then
 254                                 echo -n "${NL}Verification failed. Continue anyway? [n] "
 255                                 read answer
 256                         fi
 257
 258                         case "$answer" in
 259                                 [yYjJ]*) : ;;
 260                                 *)
 261                                         echo "Aborting."
 262                                         rm -f $tempfile
 263                                         exit 1
 264                                 ;;
 265                         esac
 266                 fi
 267         fi
 268
 269         if [ "$noflash" != 1 ]; then
 270                 if [ -f "$tempfile" ]; then
 271                         if [ "$noquestions" == 1 ]; then
 272                                 do_wait ${sleeptime:-5} "${NL}About to start flashing, hit <Ctrl-C> to abort!${NL}${NL}Starting in"
 273                         else
 274                                 if [ -z "$nobackup" ]; then
 275                                         echo -n "${NL}Keep configuration files? [y] "
 276                                         read answer
 277                                         case "$answer" in
 278                                                 [nN]) nobackup=1;;
 279                                         esac
 280                                 fi
 281
 282                                 echo -n "${NL}About to start flashing!${NL}Hit <Enter> to continue or <Ctrl-C> to abort.${NL}"
 283                                 read answer
 284                         fi
 285
 286                         for s in lucid collectd; do stop_service $s; done
 287
 288                         if [ "$nodetach" != 1 ]; then
 289                                 echo -n "Starting sysupgrade in background ... "
 290                                 /bin/busybox start-stop-daemon -S -b -x /sbin/sysupgrade -- ${nobackup:+-n} "$tempfile"
 291                                 echo "done"
 292                         else
 293                                 echo "Executing sysupgrade ... "
 294                                 exec /sbin/sysupgrade ${nobackup:+-n} "$tempfile"
 295                         fi
 296                 else
 297                         echo "No upgrade image found!"
 298                         exit 1
 299                 fi
 300         else
 301                 echo "Image saved in '$tempfile'"
 302         fi
 303 fi