From 247fdceab6caa1d3bc29ca629833a2f705eb9d59 Mon Sep 17 00:00:00 2001 From: Sebastian Kemper Date: Sat, 1 Dec 2018 19:13:50 +0100 Subject: [PATCH] image: add cameo-factory command This command enables factory image generation for Cameo boards. On upgrade the vendor firmware will check the size of the provided image and if a specific string is located at the end of the binary. cameo-factory will generate an image that the vendor firmware accepts. Tested on a D-Link DIR-825 C1 with vendor firmwares 3.01 and 3.04. Signed-off-by: Sebastian Kemper --- include/image-commands.mk | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/image-commands.mk b/include/image-commands.mk index ac724d20ac..63539bad08 100644 --- a/include/image-commands.mk +++ b/include/image-commands.mk @@ -44,6 +44,18 @@ define Build/buffalo-dhp-image mv $@.new $@ endef +# blow up binary to given size and put a given string at its end: +# cameo-factory +define Build/cameo-factory + factory_stamp=$(word 2,$(1)); \ + ((reduced_size=$(subst k,*1024,$(word 1,$(1)))-$${#factory_stamp})); \ + ( \ + dd if=$@ bs=$$reduced_size conv=sync; \ + echo -n $$factory_stamp; \ + ) > $@.new && \ + mv $@.new $@ +endef + define Build/eva-image $(STAGING_DIR_HOST)/bin/lzma2eva $(KERNEL_LOADADDR) $(KERNEL_LOADADDR) $@ $@.new mv $@.new $@