target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
   4 #
   5 # Custom upgrade script for Meraki NAND devices (ex. MR24)
   6 # Based on merakinand.sh from the ar71xx target
   7 #
   8 . /lib/apm821xx.sh
   9 . /lib/functions.sh
  10
  11 merakinand_do_kernel_check() {
  12         local board_name="$1"
  13         local tar_file="$2"
  14         local image_magic_word=`(tar xf $tar_file sysupgrade-$board_name/kernel -O 2>/dev/null | dd bs=1 count=4 skip=0 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')`
  15
  16         # What is our kernel magic string?
  17         case "$board_name" in
  18         "mr24"|\
  19         "mx60")
  20                 [ "$image_magic_word" == "8e73ed8a" ] && {
  21                         echo "pass" && return 0
  22                 }
  23                 ;;
  24         esac
  25
  26         exit 1
  27 }
  28
  29 merakinand_do_platform_check() {
  30         local board_name="$1"
  31         local tar_file="$2"
  32         local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
  33         local file_type="$(identify_tar $2 sysupgrade-$board_name/root)"
  34         local kernel_magic="$(merakinand_do_kernel_check $1 $2)"
  35
  36         case "$board_name" in
  37         "mr24"|\
  38         "mx60")
  39                 [ "$control_length" = 0 -o "$file_type" != "squashfs" -o "$kernel_magic" != "pass" ] && {
  40                         echo "Invalid sysupgrade file for $board_name"
  41                         return 1
  42                 }
  43                 ;;
  44         *)
  45                 echo "Unsupported device $board_name";
  46                 return 1
  47                 ;;
  48         esac
  49
  50         return 0
  51 }
  52
  53 merakinand_do_upgrade() {
  54         local tar_file="$1"
  55         local board_name="$(cat /tmp/sysinfo/board_name)"
  56
  57         # Do we need to do any platform tweaks?
  58         case "$board_name" in
  59         "mr24"|\
  60         "mx60")
  61                 nand_do_upgrade $1
  62                 ;;
  63         *)
  64                 echo "Unsupported device $board_name";
  65                 exit 1
  66                 ;;
  67         esac
  68 }