openwrt/target/linux/ath79/image/common-senao.mk
Michael Pratt 07723492e9 ath79: improve factory.bin for some Senao devices
Some boards with firmware made with Senao SDK based on Linux 3.3
have the following lines in the OEM upgrade script at
/etc/fwupgrade.sh

	local append=""
	local CONF_TAR="/tmp/sysupgrade.tgz"
	[ -f "$CONF_TAR" ] && append="-j $CONF_TAR"

and

	\# check FWINFO filename
	[ -z $(ls FWINFO* | grep -i ${modelname}) ] && errcode="1"

This addition also prevents needing to factory reset after flashing
for some boards that also have these lines in the script

	\# Support downgrade but do default (Smart v2.x.x.x -> senaowrt v1.x.x.x)
	[ $(ls FWINFO* | grep -i ${modelname} | cut -d "-" -f4 | cut -c 2) -lt 2 ] && append=""

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2022-03-13 19:54:57 +01:00

39 lines
1.8 KiB
Makefile

DEVICE_VARS += SENAO_IMGNAME
# This needs to make OEM config archive 'sysupgrade.tgz' an empty file prior to OEM
# sysupgrade, as otherwise it will implant the old configuration from
# OEM firmware when writing rootfs from factory.bin
# rootfs size and checksum is taken from a squashfs header
# the header does not exist, therefore, supply the size and md5
define Build/senao-tar-gz
-[ -f "$@" ] && \
mkdir -p $@.tmp && \
touch $@.tmp/failsafe.bin && \
touch $@.tmp/FWINFO-$(word 1,$(1))-$(REVISION) && \
echo '#!/bin/sh' > $@.tmp/before-upgrade.sh && \
echo ': > /tmp/sysupgrade.tgz' >> $@.tmp/before-upgrade.sh && \
echo ': > /tmp/_sys/sysupgrade.tgz' >> $@.tmp/before-upgrade.sh && \
echo -n $$(( $$(cat $@ | wc -c) / 4096 * 4096 )) > $@.len && \
dd if=$@ bs=$$(cat $@.len) count=1 | md5sum - | cut -d ' ' -f 1 > $@.md5 && \
echo '#!/bin/sh' > $@.tmp/after-upgrade.sh && \
printf 'fw_setenv rootfs_size 0x%08x\n' $$(cat $@.len) >> $@.tmp/after-upgrade.sh && \
printf 'fw_setenv rootfs_checksum %s\n' $$(cat $@.md5) >> $@.tmp/after-upgrade.sh && \
$(CP) $(KDIR)/loader-$(DEVICE_NAME).uImage \
$@.tmp/openwrt-$(word 1,$(1))-uImage-lzma.bin && \
$(CP) $@ $@.tmp/openwrt-$(word 1,$(1))-root.squashfs && \
$(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name \
$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-C $@.tmp . | gzip -9n > $@ && \
rm -rf $@.tmp $@.len $@.md5
endef
define Device/senao_loader_okli
$(Device/loader-okli-uimage)
KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x73714f4b
LOADER_KERNEL_MAGIC := 0x73714f4b
IMAGES += factory.bin
IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
check-size | senao-tar-gz $$$$(SENAO_IMGNAME)
IMAGE/sysupgrade.bin := $$(IMAGE/factory.bin) | append-metadata
endef