target/linux/ar71xx/base-files/lib/upgrade/platform.sh

   1 #
   2 # Copyright (C) 2009 OpenWrt.org
   3 #
   4
   5 . /lib/ar71xx.sh
   6
   7 PART_NAME=firmware
   8 RAMFS_COPY_DATA=/lib/ar71xx.sh
   9
  10 CI_BLKSZ=65536
  11 CI_LDADR=0x80060000
  12
  13 platform_find_partitions() {
  14         local first dev size erasesize name
  15         while read dev size erasesize name; do
  16                 name=${name#'"'}; name=${name%'"'}
  17                 case "$name" in
  18                         vmlinux.bin.l7|kernel|linux|rootfs)
  19                                 if [ -z "$first" ]; then
  20                                         first="$name"
  21                                 else
  22                                         echo "$erasesize:$first:$name"
  23                                         break
  24                                 fi
  25                         ;;
  26                 esac
  27         done < /proc/mtd
  28 }
  29
  30 platform_find_kernelpart() {
  31         local part
  32         for part in "${1%:*}" "${1#*:}"; do
  33                 case "$part" in
  34                         vmlinux.bin.l7|kernel|linux)
  35                                 echo "$part"
  36                                 break
  37                         ;;
  38                 esac
  39         done
  40 }
  41
  42 platform_do_upgrade_combined() {
  43         local partitions=$(platform_find_partitions)
  44         local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
  45         local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
  46         local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
  47         local kern_blocks=$(($kern_length / $CI_BLKSZ))
  48         local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
  49
  50         if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
  51            [ ${kern_blocks:-0} -gt 0 ] && \
  52            [ ${root_blocks:-0} -gt ${kern_blocks:-0} ] && \
  53            [ ${erase_size:-0} -gt 0 ];
  54         then
  55                 local append=""
  56                 [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
  57
  58                 ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
  59                   dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \
  60                         mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions
  61         fi
  62 }
  63
  64 platform_check_image() {
  65         local board=$(ar71xx_board_name)
  66         local magic="$(get_magic_word "$1")"
  67
  68         [ "$ARGC" -gt 1 ] && return 1
  69
  70         case "$board" in
  71         ap83 | mzk-w04nu | mzk-w300nh | tew-632brp | wrt-400n | bullet-m | nano-m | rocket-m)
  72                 [ "$magic" != "2705" ] && {
  73                         echo "Invalid image type."
  74                         return 1
  75                 }
  76                 return 0
  77                 ;;
  78         tl-wr741nd | tl-wr941nd)
  79                 [ "$magic" != "0100" ] && {
  80                         echo "Invalid image type."
  81                         return 1
  82                 }
  83                 return 0
  84                 ;;
  85         wrt160nl)
  86                 [ "$magic" != "4e4c" ] && {
  87                         echo "Invalid image type."
  88                         return 1
  89                 }
  90                 return 0
  91                 ;;
  92         routerstation | routerstation-pro | ls-sr71)
  93                 [ "$magic" != "4349" ] && {
  94                         echo "Invalid image. Use *-sysupgrade.bin files on this board"
  95                         return 1
  96                 }
  97
  98                 local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
  99                 local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
 100
 101                 if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
 102                         return 0
 103                 else
 104                         echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
 105                         return 1
 106                 fi
 107                 return 0
 108                 ;;
 109         esac
 110
 111         echo "Sysupgrade is not yet supported on $board."
 112         return 1
 113 }
 114
 115 platform_do_upgrade() {
 116         local board=$(ar71xx_board_name)
 117
 118         case "$board" in
 119         routerstation | routerstation-pro)
 120                 platform_do_upgrade_combined "$ARGV"
 121                 ;;
 122         *)
 123                 default_do_upgrade "$ARGV"
 124                 ;;
 125         esac
 126 }
 127
 128 disable_watchdog() {
 129         killall watchdog
 130         ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
 131                 echo 'Could not disable watchdog'
 132                 return 1
 133         }
 134 }
 135
 136 append sysupgrade_pre_upgrade disable_watchdog