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bcm63xx: nand: support Sercomm firmwares

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Add support for Sercomm factory firmwares (AES 256 CBC encrypted).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2020-06-02 09:12:05 +02:00
parent 4b2fe12953
commit f263a0f9ff
2 changed files with 67 additions and 0 deletions
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58
target/linux/bcm63xx/image/Makefile
View File

@ -223,6 +223,64 @@ define Build/cfe-part-tag
dd if=$@.part >> $@
endef
define Build/cfe-sercomm-part
$(TOPDIR)/scripts/sercomm-partition-tag.py \
--input-file $@ \
--output-file $@.kernel_rootfs \
--part-name kernel_rootfs \
--part-version OpenWrt \
--rootfs-version $(SERCOMM_VERSION)
rm -rf $@-rootfs_lib
mkdir -p $@-rootfs_lib
echo $(SERCOMM_VERSION) > $@-rootfs_lib/lib_ver
$(call Build/cfe-jffs2,$@-rootfs_lib)
$(call Build/pad-to,$(BLOCKSIZE))
$(TOPDIR)/scripts/sercomm-partition-tag.py \
--input-file $@ \
--output-file $@.rootfs_lib \
--part-name rootfs_lib \
--part-version $(SERCOMM_VERSION)
rm -rf $@-bootloader
mkdir -p $@-bootloader
cp $(KDIR)/bcm63xx-cfe/$(CFE_RAM_FILE) $@-bootloader/$(CFE_RAM_JFFS2_NAME)
$(call Build/cfe-jffs2,$@-bootloader)
$(call Build/pad-to,$(BLOCKSIZE))
$(TOPDIR)/scripts/sercomm-partition-tag.py \
--input-file $@ \
--output-file $@.bootloader \
--part-name bootloader \
--part-version $(SERCOMM_VERSION)
mv $@.kernel_rootfs $@
dd if=$@.rootfs_lib >> $@
dd if=$@.bootloader >> $@
endef
define Build/cfe-sercomm-load
mv $@ $@.ser
echo $(SERCOMM_PID) | xxd -p -r > $@
sha256sum $@.ser | awk '{ print $1 }' | xxd -p -r >> $@
dd if=$@.ser >> $@
rm -f $@.ser
endef
define Build/cfe-sercomm-crypto
$(TOPDIR)/scripts/sercomm-crypto.py \
--input-file $@ \
--key-file $@.key \
--output-file $@.ser \
--version OpenWrt
$(STAGING_DIR_HOST)/bin/openssl enc -md md5 -aes-256-cbc \
-in $@ -out $@.enc \
-K `cat $@.key` \
-iv 00000000000000000000000000000000
dd if=$@.enc >> $@.ser
mv $@.ser $@
rm -f $@.enc $@.key
endef
define Build/cfe-old-bin
$(TOPDIR)/scripts/brcmImage.pl -t -p \
-o $@ -b $(CFE_BOARD_ID) -c $(CHIP_ID) \

9
target/linux/bcm63xx/image/bcm63xx_nand.mk
View File

@ -7,6 +7,7 @@ DEVICE_VARS += CFE_RAM_FILE
DEVICE_VARS += CFE_RAM_JFFS2_NAME CFE_RAM_JFFS2_PAD
DEVICE_VARS += CFE_WFI_CHIP_ID CFE_WFI_FLASH_TYPE
DEVICE_VARS += CFE_WFI_FLAGS CFE_WFI_VERSION
DEVICE_VARS += SERCOMM_PID SERCOMM_VERSION
# CFE expects a single JFFS2 partition with cferam and kernel. However,
# it's possible to fool CFE into properly loading both cferam and kernel
@ -36,6 +37,14 @@ define Device/bcm63xx-nand
SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
endef
define Device/sercomm-nand
$(Device/bcm63xx-nand)
IMAGES += factory.img
IMAGE/factory.img := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | cfe-sercomm-part | gzip | cfe-sercomm-load | cfe-sercomm-crypto
SERCOM_PID :=
SERCOMM_VERSION :=
endef
### Comtrend ###
define Device/comtrend_vr-3032u
$(Device/bcm63xx-nand)