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                         if grep -q '"vmlinux.bin.l7"' /proc/mtd; then
  23                                 echo "openwrt-fonera-combined.img"
  24                         else
  25                                 echo "openwrt-ubiquity-combined.img"
  26                         fi
  27                 ;;
  28                 ar71xx)
  29                         if grep -q '"kernel"' /proc/mtd; then
  30                                 echo "openwrt-ar71xx-combined.img"
  31                         fi
  32                 ;;
  33                 brcm-2.4)
  34                         echo "openwrt-brcm-2.4-squashfs.trx"
  35                 ;;
  36         esac
  37 }
  38
  39 check_image()
  40 {
  41         local file; for file in /lib/upgrade/*.sh; do . $file; done
  42         if platform_check_image "$1" >/dev/null 2>/dev/null; then
  43                 return 0
  44         fi
  45         return 1
  46 }
  47
  48 find_remote_checksum()
  49 {
  50         wget -qO- ${1%/*}/md5sums 2>/dev/null | \
  51                 sed -ne '/'$2'/ { s/ .*//p }'
  52 }
  53
  54 find_local_checksum()
  55 {
  56         set -- $(md5sum "$tempfile")
  57         echo $1
  58 }
  59
  60 find_remote_info()
  61 {
  62         wget -qO- "${1%/*}/VERSION.txt" 2>/dev/null
  63 }
  64
  65 find_remote_version()
  66 {
  67         find_remote_info "$1" | \
  68                 sed -ne "s!.*$D4/$D2/$D2 $D2:$D2.*!\\1\\2\\3\\4\\5!p;t"
  69 }
  70
  71 find_local_version()
  72 {
  73         if [ -f /rom/etc/banner ]; then
  74                 sed -ne "s!.*$D4/$D2/$D2 $D2:$D2.*!\\1\\2\\3\\4\\5!p;t" \
  75                         /rom/etc/banner
  76         else
  77                 date +"%Y%m%d%H%M" -r /bin/sh
  78         fi
  79 }
  80
  81 stop_service()
  82 {
  83         [ -x /etc/init.d/$1 ] && {
  84                 echo -n "Stopping service $1 ... "
  85                 /etc/init.d/$1 stop >/dev/null 2>/dev/null
  86                 echo "done"
  87         }
  88 }
  89
  90 do_wait()
  91 {
  92         if [ ${1:-0} -gt 0 ]; then
  93                 echo -n "${2:-Waiting} "
  94                 for i in $(seq 1 $1); do
  95                         printf "%-2dseconds" $(($1-$i))
  96                         sleep 1
  97                         echo -en "\b\b\b\b\b\b\b\b\b"
  98                 done
  99                 echo "${NL}"
 100         fi
 101 }
 102
 103 version_compare()
 104 {
 105         local v1="$1"
 106         local v2="$2"
 107
 108         while [ -n "$v1" -o -n "$v2" ]; do
 109                 if [ -z "${v2:0:4}" -o "${v1:0:4}" -gt "${v2:0:4}" ]; then
 110                         return 1
 111                 elif [ -z "${v1:0:4}" -o "${v1:0:4}" -lt "${v2:0:4}" ]; then
 112                         return 2
 113                 fi
 114
 115                 v1="${v1:4}"
 116                 v2="${v2:4}"
 117         done
 118
 119         return 0
 120 }
 121
 122 usage()
 123 {
 124         cat <<EOT
 125
 126 Usage:
 127   remote-update -h
 128   remote-update [-u <update url>] -c
 129   remote-update [-v] [-y] [-u <update url>] -w
 130   remote-update [-d] [-n] [-v] [-y] [-s <sleep seconds>] [-u <update url>]
 131
 132 Actions:
 133   -h    Display this help message and exit.
 134   -c    Check for firmware update and exit.
 135   -w    Fetch image and exit, do not perform flash write.
 136
 137 Options:
 138   -d    Do not detach from terminal.
 139   -n    Do not backup configuration.
 140   -v    Skip verification of downloaded image.
 141   -y    Assume defaults for all questions.
 142
 143   -s <seconds>
 144     Sleep given amount of seconds before starting flash write.
 145     If ommitted and '-y' is not used, 5 seconds are assumed.
 146
 147   -u <url>
 148     Fetch firmware image from given url. A file "md5sums" is expected
 149     in the same remote directory. If there is no such file, use -v to
 150     suppress verification.
 151
 152 EOT
 153
 154         exit 1
 155 }
 156
 157
 158 while getopts "s:u:cdnvwyh" flag; do
 159         case $flag in
 160                 s) sleeptime="$OPTARG";;
 161                 u) updateurl="$OPTARG";;
 162                 c) checkupdate=1;;
 163                 d) nodetach=1;;
 164                 n) nobackup=1;;
 165                 v) noverify=1;;
 166                 w) noflash=1;;
 167                 y) noquestions=1;;
 168                 *) usage;;
 169         esac
 170 done
 171
 172
 173 local image_url="$updateurl"
 174 local image_name="${image_url##*/}"
 175
 176 [ -z "$image_url" ] && {
 177         local arch=$(find_architecture)
 178         local image=$(find_image "$arch")
 179         local repo=$(uci get freifunk.upgrade.repository 2>/dev/null)
 180         repo=${repo:-$(uci get system.upgrade.repository 2>/dev/null)}
 181
 182         [ -z "$arch" ] && {
 183                 echo "Can not determine the current architecture."
 184                 exit 1
 185         }
 186
 187         [ -z "$repo" ] && {
 188                 echo "No repository configured in 'system.upgrade.repository'."
 189                 echo "Use the '-u' flag to specify an image location."
 190                 exit 1
 191         }
 192
 193         [ -z "$image" ] && {
 194                 echo "No suitable image for the '$arch' architecture."
 195                 echo "Your platform is not supported."
 196                 exit 1
 197         }
 198
 199         echo "Architecture: $arch"
 200         echo "Repository:   $repo"
 201
 202         image_name="$image"
 203         image_url="${repo%/}/$arch/$image"
 204 }
 205
 206
 207 if [ "$checkupdate" = 1 ]; then
 208         local v1=$(find_local_version)
 209         local v2=$(find_remote_version "$image_url")
 210
 211         [ -n "$v1" -a -n "$v2" ] && {
 212                 version_compare "$v1" "$v2"
 213                 [ $? == 2 ] && {
 214                         echo "Update available!${NL}Local:  $v1${NL}Remote: $v2${NL}--"
 215                         find_remote_info "$image_url"
 216                         exit 0
 217                 } || {
 218                         echo "Local version $v1 is up to date"
 219                         exit 2
 220                 }
 221         } || {
 222                 echo "No remote time stamp found."
 223                 exit 1
 224         }
 225 else
 226         if [ "$noquestions" != 1 ]; then
 227                 echo -n "${NL}About to download $image_name. Continue? [y] "
 228                 read answer
 229                 case "$answer" in
 230                         [nN]) exit 1;;
 231                 esac
 232         fi
 233
 234         echo -n "Downloading $image_name ... "
 235         rm -f $tempfile
 236         wget -qO $tempfile "$image_url" 2>/dev/null
 237         [ $? == 0 ] && echo done || {
 238                 echo failed
 239                 rm -f $tempfile
 240                 exit 1
 241         }
 242
 243         if [ "$noverify" != 1 ]; then
 244                 echo -n "Verifying $image_name ... "
 245
 246                 local md5_remote=$(find_remote_checksum "$image_url" "$image_name")
 247                 local md5_local=$(find_local_checksum)
 248
 249                 check_image "$tempfile"
 250                 local image_ok=$?
 251
 252                 if [ $image_ok = 0 -a -n "$md5_remote" -a -n "$md5_local" -a "$md5_remote" = "$md5_local" ]; then
 253                         echo "done"
 254                 else
 255                         if [ $image_ok != 0 ]; then
 256                                 echo "unsupported image type"
 257                         else
 258                                 echo "checksum mismatch! (local:${md5_local:-(none)} remote:${md5_remote:-(none)})"
 259                         fi
 260
 261                         local answer=n
 262                         if [ "$noquestions" != 1 ]; then
 263                                 echo -n "${NL}Verification failed. Continue anyway? [n] "
 264                                 read answer
 265                         fi
 266
 267                         case "$answer" in
 268                                 [yYjJ]*) : ;;
 269                                 *)
 270                                         echo "Aborting."
 271                                         rm -f $tempfile
 272                                         exit 1
 273                                 ;;
 274                         esac
 275                 fi
 276         fi
 277
 278         if [ "$noflash" != 1 ]; then
 279                 if [ -f "$tempfile" ]; then
 280                         if [ "$noquestions" == 1 ]; then
 281                                 do_wait ${sleeptime:-5} "${NL}About to start flashing, hit <Ctrl-C> to abort!${NL}${NL}Starting in"
 282                         else
 283                                 if [ -z "$nobackup" ]; then
 284                                         echo -n "${NL}Keep configuration files? [y] "
 285                                         read answer
 286                                         case "$answer" in
 287                                                 [nN]) nobackup=1;;
 288                                         esac
 289                                 fi
 290
 291                                 echo -n "${NL}About to start flashing!${NL}Hit <Enter> to continue or <Ctrl-C> to abort.${NL}"
 292                                 read answer
 293                         fi
 294
 295                         for s in lucid collectd; do stop_service $s; done
 296
 297                         if [ "$nodetach" != 1 ]; then
 298                                 echo -n "Starting sysupgrade in background ... "
 299                                 /bin/busybox start-stop-daemon -S -b -x /sbin/sysupgrade -- ${nobackup:+-n} "$tempfile"
 300                                 echo "done"
 301                         else
 302                                 echo "Executing sysupgrade ... "
 303                                 exec /sbin/sysupgrade ${nobackup:+-n} "$tempfile"
 304                         fi
 305                 else
 306                         echo "No upgrade image found!"
 307                         exit 1
 308                 fi
 309         else
 310                 echo "Image saved in '$tempfile'"
 311         fi
 312 fi