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. /lib/functions.sh
fortinet_fwinfo_blocks() {
local fwinfo_mtd="$(find_mtd_part firmware-info)"
local offset="$1"
local len="$2"
local blks
if [ -z "$fwinfo_mtd" ]; then
echo "WARN: MTD device \"firmware-info\" not found"
return 1
fi
blks=$((len / 0x200))
[ $((len % 0x200)) -gt 0 ] && blks=$((blks + 1))
blks=$(printf "%04x" $blks)
printf "fwinfo: offset-> 0x%x, blocks-> 0x%s (len: 0x%08x)\n" \
$offset $blks $len
printf "\x${blks:2:2}\x${blks:0:2}" | \
dd bs=2 count=1 seek=$((offset / 2)) conv=notrunc of=${fwinfo_mtd}
}
fortinet_do_upgrade() {
local board_dir="$(tar tf "$1" | grep -m 1 '^sysupgrade-.*/$')"
local kern_mtd="$(find_mtd_part kernel)"
local root_mtd="$(find_mtd_part rootfs)"
local kern_len root_len
board_dir="${board_dir%/}"
if [ -z "$kern_mtd" ] || [ -z "$root_mtd" ]; then
echo "ERROR: MTD device \"kernel\" or \"rootfs\" not found"
umount -a
reboot -f
fi
kern_len=$( (tar xOf "$1" "$board_dir/kernel" | wc -c) 2> /dev/null)
root_len=$( (tar xOf "$1" "$board_dir/root" | wc -c) 2> /dev/null)
if [ -z "$kern_len" ] || [ -z "$root_len" ]; then
echo "ERROR: failed to get length of new kernel or rootfs"
umount -a
reboot -f
fi
fortinet_fwinfo_blocks "0x184" "$kern_len"
fortinet_fwinfo_blocks "0x18c" "$root_len"
tar xOf "$1" "$board_dir/kernel" | \
mtd write - "kernel"
tar xOf "$1" "$board_dir/root" | \
mtd ${UPGRADE_BACKUP:+-j "${UPGRADE_BACKUP}"} write - "rootfs"
}
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