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69 lines
1.4 KiB
Bash
69 lines
1.4 KiB
Bash
#!/bin/sh
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#
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# Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
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#
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# Custom upgrade script for Meraki NAND devices (ex. MR24)
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# Based on merakinand.sh from the ar71xx target
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#
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. /lib/apm821xx.sh
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. /lib/functions.sh
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merakinand_do_kernel_check() {
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local board_name="$1"
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local tar_file="$2"
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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"')`
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# What is our kernel magic string?
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case "$board_name" in
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"mr24"|\
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"mx60")
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[ "$image_magic_word" == "8e73ed8a" ] && {
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echo "pass" && return 0
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}
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;;
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esac
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exit 1
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}
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merakinand_do_platform_check() {
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local board_name="$1"
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local tar_file="$2"
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local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
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local file_type="$(identify_tar $2 sysupgrade-$board_name/root)"
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local kernel_magic="$(merakinand_do_kernel_check $1 $2)"
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case "$board_name" in
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"mr24"|\
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"mx60")
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[ "$control_length" = 0 -o "$file_type" != "squashfs" -o "$kernel_magic" != "pass" ] && {
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echo "Invalid sysupgrade file for $board_name"
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return 1
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}
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;;
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*)
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echo "Unsupported device $board_name";
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return 1
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;;
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esac
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return 0
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}
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merakinand_do_upgrade() {
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local tar_file="$1"
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local board_name="$(board_name)"
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# Do we need to do any platform tweaks?
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case "$board_name" in
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"mr24"|\
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"mx60")
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nand_do_upgrade $1
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;;
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*)
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echo "Unsupported device $board_name";
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exit 1
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;;
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esac
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}
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