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