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openwrtv4/include/image-commands.mk
Hannu Nyman dcfe2a461e include/image-commands.mk: shorter version in Netgear factory header 
Shorten the version string in Netgear factory image header in order
to enable u-boot TFTP recovery flash mode to work again.

Strip 'r7210-14cb05909a' into 'r7210' in the Netgear image header
by removing the hash (anything after "-").

background:
Some Netgear routers have recently been unable to flash Openwrt
factory image with the TFTP recovery flash mode provided by Netgear
u-boot. That is due to over-long Openwrt version string overflowing
into the router type string in u-boot code. Modern git versions
produce 10-digit short hashes for the Openwrt main repo, and that
causes the version string to be too long in the image header,
breaking the image ID verification by the TFTP flash routine.

(Other option could be to force a shorter hash in scripts/getver.sh,
but as the problem only concerns Netgear routers, let's patch just
them.)

More detailed explanations in FS#1583

Tested with WNDR3800

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
2018-06-18 20:29:37 +02:00

304 lines
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Makefile
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# Build commands that can be called from Device/* templates
IMAGE_KERNEL = $(word 1,$^)
IMAGE_ROOTFS = $(word 2,$^)
define Build/uImage
mkimage -A $(LINUX_KARCH) \
-O linux -T kernel \
-C $(1) -a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-n '$(if $(UIMAGE_NAME),$(UIMAGE_NAME),$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) Linux-$(LINUX_VERSION))' -d $@ $@.new
mv $@.new $@
endef
define Build/buffalo-enc
$(eval product=$(word 1,$(1)))
$(eval version=$(word 2,$(1)))
$(eval args=$(wordlist 3,$(words $(1)),$(1)))
$(STAGING_DIR_HOST)/bin/buffalo-enc \
-p $(product) -v $(version) $(args) \
-i $@ -o $@.new
mv $@.new $@
endef
define Build/buffalo-enc-tag
$(call Build/buffalo-enc,'' '' -S 152 $(1))
endef
define Build/buffalo-tag-dhp
$(eval product=$(word 1,$(1)))
$(eval region=$(word 2,$(1)))
$(eval language=$(word 3,$(1)))
$(STAGING_DIR_HOST)/bin/buffalo-tag \
-d 0x01000000 -w 1 \
-a $(BUFFALO_TAG_PLATFORM) \
-v $(BUFFALO_TAG_VERSION) -m $(BUFFALO_TAG_MINOR) \
-b $(product) -p $(product) \
-r $(region) -r $(region) -l $(language) \
-I $@ -o $@.new
mv $@.new $@
endef
define Build/buffalo-dhp-image
$(STAGING_DIR_HOST)/bin/mkdhpimg $@ $@.new
mv $@.new $@
endef
define Build/eva-image
$(STAGING_DIR_HOST)/bin/lzma2eva $(KERNEL_LOADADDR) $(KERNEL_LOADADDR) $@ $@.new
mv $@.new $@
endef
define Build/netgear-chk
$(STAGING_DIR_HOST)/bin/mkchkimg \
-o $@.new \
-k $@ \
-b $(NETGEAR_BOARD_ID) \
$(if $(NETGEAR_REGION),-r $(NETGEAR_REGION),)
mv $@.new $@
endef
define Build/netgear-dni
$(STAGING_DIR_HOST)/bin/mkdniimg \
-B $(NETGEAR_BOARD_ID) -v $(VERSION_DIST).$(firstword $(subst -, ,$(REVISION))) \
$(if $(NETGEAR_HW_ID),-H $(NETGEAR_HW_ID)) \
-r "$(1)" \
-i $@ -o $@.new
mv $@.new $@
endef
define Build/append-squashfs-fakeroot-be
rm -rf $@.fakefs $@.fakesquashfs
mkdir $@.fakefs
$(STAGING_DIR_HOST)/bin/mksquashfs-lzma \
$@.fakefs $@.fakesquashfs \
-noappend -root-owned -be -nopad -b 65536 \
$(if $(SOURCE_DATE_EPOCH),-fixed-time $(SOURCE_DATE_EPOCH))
cat $@.fakesquashfs >> $@
endef
# append a fake/empty uImage header, to fool bootloaders rootfs integrity check
# for example
define Build/append-uImage-fakehdr
touch $@.fakehdr
$(STAGING_DIR_HOST)/bin/mkimage \
-A $(LINUX_KARCH) -O linux -T $(1) -C none \
-n '$(VERSION_DIST) fake $(1)' \
-d $@.fakehdr \
-s \
$@.fakehdr
cat $@.fakehdr >> $@
endef
define Build/tplink-safeloader
-$(STAGING_DIR_HOST)/bin/tplink-safeloader \
-B $(TPLINK_BOARD_ID) \
-V $(REVISION) \
-k $(IMAGE_KERNEL) \
-r $@ \
-o $@.new \
-j \
$(wordlist 2,$(words $(1)),$(1)) \
$(if $(findstring sysupgrade,$(word 1,$(1))),-S) && mv $@.new $@ || rm -f $@
endef
define Build/append-dtb
cat $(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb >> $@
endef
define Build/install-dtb
$(foreach dts,$(DEVICE_DTS), \
$(CP) \
$(DTS_DIR)/$(dts).dtb \
$(BIN_DIR)/$(IMG_PREFIX)-$(dts).dtb; \
)
endef
define Build/fit
$(TOPDIR)/scripts/mkits.sh \
-D $(DEVICE_NAME) -o $@.its -k $@ \
$(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
-a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config@1") \
-A $(LINUX_KARCH) -v $(LINUX_VERSION)
PATH=$(LINUX_DIR)/scripts/dtc:$(PATH) mkimage -f $@.its $@.new
@mv $@.new $@
endef
define Build/lzma
$(call Build/lzma-no-dict,-lc1 -lp2 -pb2 $(1))
endef
define Build/lzma-no-dict
$(STAGING_DIR_HOST)/bin/lzma e $@ $(1) $@.new
@mv $@.new $@
endef
define Build/gzip
gzip -f -9n -c $@ $(1) > $@.new
@mv $@.new $@
endef
define Build/jffs2
rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
$(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
--squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
-o $@.new \
-d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
2>&1 1>/dev/null | awk '/^.+$$$$/' && \
$(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
-rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
@mv $@.new $@
endef
define Build/kernel-bin
rm -f $@
cp $< $@
endef
define Build/patch-cmdline
$(STAGING_DIR_HOST)/bin/patch-cmdline $@ '$(CMDLINE)'
endef
define Build/append-kernel
dd if=$(IMAGE_KERNEL) >> $@
endef
define Build/append-rootfs
dd if=$(IMAGE_ROOTFS) >> $@
endef
define Build/append-ubi
sh $(TOPDIR)/scripts/ubinize-image.sh \
$(if $(UBOOTENV_IN_UBI),--uboot-env) \
$(if $(KERNEL_IN_UBI),--kernel $(IMAGE_KERNEL)) \
$(foreach part,$(UBINIZE_PARTS),--part $(part)) \
$(IMAGE_ROOTFS) \
$@.tmp \
-p $(BLOCKSIZE:%k=%KiB) -m $(PAGESIZE) \
$(if $(SUBPAGESIZE),-s $(SUBPAGESIZE)) \
$(if $(VID_HDR_OFFSET),-O $(VID_HDR_OFFSET)) \
$(UBINIZE_OPTS)
cat $@.tmp >> $@
rm $@.tmp
endef
define Build/append-uboot
dd if=$(UBOOT_PATH) >> $@
endef
define Build/pad-to
dd if=$@ of=$@.new bs=$(1) conv=sync
mv $@.new $@
endef
define Build/pad-extra
dd if=/dev/zero bs=$(1) count=1 >> $@
endef
define Build/pad-rootfs
$(STAGING_DIR_HOST)/bin/padjffs2 $@ $(1) \
$(if $(BLOCKSIZE),$(BLOCKSIZE:%k=%),4 8 16 64 128 256)
endef
define Build/pad-offset
let \
size="$$(stat -c%s $@)" \
pad="$(subst k,* 1024,$(word 1, $(1)))" \
offset="$(subst k,* 1024,$(word 2, $(1)))" \
pad="(pad - ((size + offset) % pad)) % pad" \
newsize='size + pad'; \
dd if=$@ of=$@.new bs=$$newsize count=1 conv=sync
mv $@.new $@
endef
define Build/check-size
@[ $$(($(subst k,* 1024,$(subst m, * 1024k,$(1))))) -ge "$$(stat -c%s $@)" ] || { \
echo "WARNING: Image file $@ is too big" >&2; \
rm -f $@; \
}
endef
define Build/combined-image
-sh $(TOPDIR)/scripts/combined-image.sh \
"$(IMAGE_KERNEL)" \
"$@" \
"$@.new"
@mv $@.new $@
endef
define Build/openmesh-image
$(TOPDIR)/scripts/om-fwupgradecfg-gen.sh \
"$(call param_get_default,ce_type,$(1),$(DEVICE_NAME))" \
"$@-fwupgrade.cfg" \
"$(call param_get_default,kernel,$(1),$(IMAGE_KERNEL))" \
"$(call param_get_default,rootfs,$(1),$@)"
$(TOPDIR)/scripts/combined-ext-image.sh \
"$(call param_get_default,ce_type,$(1),$(DEVICE_NAME))" "$@" \
"$@-fwupgrade.cfg" "fwupgrade.cfg" \
"$(call param_get_default,kernel,$(1),$(IMAGE_KERNEL))" "kernel" \
"$(call param_get_default,rootfs,$(1),$@)" "rootfs"
endef
define Build/sysupgrade-tar
sh $(TOPDIR)/scripts/sysupgrade-tar.sh \
--board $(if $(BOARD_NAME),$(BOARD_NAME),$(DEVICE_NAME)) \
--kernel $(call param_get_default,kernel,$(1),$(IMAGE_KERNEL)) \
--rootfs $(call param_get_default,rootfs,$(1),$(IMAGE_ROOTFS)) \
$@
endef
define Build/tplink-v1-header
$(STAGING_DIR_HOST)/bin/mktplinkfw \
-c -H $(TPLINK_HWID) -W $(TPLINK_HWREV) -L $(KERNEL_LOADADDR) \
-E $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-m $(TPLINK_HEADER_VERSION) -N "$(VERSION_DIST)" -V $(REVISION) \
-k $@ -o $@.new $(1)
@mv $@.new $@
endef
define Build/tplink-v2-header
$(STAGING_DIR_HOST)/bin/mktplinkfw2 \
-c -H $(TPLINK_HWID) -W $(TPLINK_HWREV) -L $(KERNEL_LOADADDR) \
-E $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
-w $(TPLINK_HWREVADD) -F "$(TPLINK_FLASHLAYOUT)" \
-T $(TPLINK_HVERSION) -V "ver. 2.0" \
-k $@ -o $@.new $(1)
@mv $@.new $@
endef
define Build/tplink-v2-image
$(STAGING_DIR_HOST)/bin/mktplinkfw2 \
-H $(TPLINK_HWID) -W $(TPLINK_HWREV) \
-w $(TPLINK_HWREVADD) -F "$(TPLINK_FLASHLAYOUT)" \
-T $(TPLINK_HVERSION) -V "ver. 2.0" -a 0x4 -j \
-k $(IMAGE_KERNEL) -r $(IMAGE_ROOTFS) -o $@.new $(1)
cat $@.new >> $@
rm -rf $@.new
endef
json_quote=$(subst ','\'',$(subst ",\",$(1)))
#")')
metadata_devices=$(if $(1),$(subst "$(space)","$(comma)",$(strip $(foreach v,$(1),"$(call json_quote,$(v))"))))
metadata_json = \
'{ $(if $(IMAGE_METADATA),$(IMAGE_METADATA)$(comma)) \
"supported_devices":[$(call metadata_devices,$(1))], \
"version": { \
"dist": "$(call json_quote,$(VERSION_DIST))", \
"version": "$(call json_quote,$(VERSION_NUMBER))", \
"revision": "$(call json_quote,$(REVISION))", \
"board": "$(call json_quote,$(BOARD))" \
} \
}'
define Build/append-metadata
$(if $(SUPPORTED_DEVICES),-echo $(call metadata_json,$(SUPPORTED_DEVICES)) | fwtool -I - $@)
endef
define Build/kernel2minor
kernel2minor -k $@ -r $@.new $(1)
mv $@.new $@
endef
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