Allow forced flashing of a factory firmware image, after checking for the
correct FIT magic header and Linksys board-specific footer. Details of the
footer are already described in scripts/linksys-image.sh.
This is convenient as it avoids using a TFTP server or OEM GUI, and allows
restoring OEM firmware or installing a "breaking" OpenWrt update (e.g DSA
migration and kernel repartition) directly from the command line.
Devices supported at this time include EA6350v3, EA8300, MR8300 and WHW01.
Reviewed-by: Robert Marko <robimarko@gmail.com>
Tested-by: Wyatt Martin <wawowl@gmail.com> # WHW01
Tested-by: Tony Ambardar <itugrok@yahoo.com> # EA6350v3
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
esac
}
+linksys_is_factory_image() {
+ local board=$(board_name)
+ board=${board##*,}
+
+ # check matching footer signature
+ tail -c 256 $1 | grep -q -i "\.LINKSYS\.........${board}"
+}
+
platform_do_upgrade_linksys() {
local magic_long="$(get_magic_long "$1")"
echo "writing \"$1\" image to \"$part_label\""
get_image "$1" | mtd write - "$part_label"
}
+
+ [ "$magic_long" = "d00dfeed" ] && {
+ if ! linksys_is_factory_image "$1"; then
+ echo "factory image doesn't match device"
+ return 1
+ fi
+
+ echo "writing \"$1\" factory image to \"$part_label\""
+ get_image "$1" | mtd -e "$part_label" write - "$part_label"
+ }
}