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Makefile
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# SPDX-License-Identifier: GPL-2.0
# Copyright(c) 2019 Bjørn Mork <bjorn@mork.no>
MODEL=DCS-8000LH
BUILD=9999
PRIKEY=keys/$(MODEL)-PriKey.pem
SIGNKEY=keys/$(MODEL)-sign.pem
OPTFILES=version opt.local
FW_XTRA_FILES=
all: fw
version: dcs8000lh-configure.py
sed -ne 's/"//g' -e 's/^VERSION *= *//p' dcs8000lh-configure.py >$@
opt.squashfs: $(OPTFILES)
mksquashfs $(OPTFILES) $@ -all-root -comp xz
aes.key:
openssl rand 16 > $@
aes.key.rsa: aes.key $(PRIKEY)
openssl rsautl -encrypt -in aes.key -inkey $(PRIKEY) -out $@
### FIXME: This is verified using the pubkey in /etc/db/verify.key, which will fail
sign.sha1.rsa: sign.sha1 $(SIGNKEY)
openssl rsautl -sign -inkey $(SIGNKEY) -out sign.sha1.rsa -in sign.sha1
## FIXME: It would be nice to have the D-Link signing key instead :-)
$(SIGNKEY):
echo "WARNING: $(SIGNKEY) is missing - using a new abitrary key instead"
$(eval SIGNKEY := random-signkey.pem)
$(eval FW_XTRA_FILES := $(FW_XTRA_FILES) verify.key)
[ -f $(SIGNKEY) ] || openssl genrsa -out $(SIGNKEY)
verify.key: $(SIGNKEY)
openssl rsa -pubout -in $(SIGNKEY) -out $@
sign.sha1: update.bin.aes aes.key.rsa certificate.info update.sha1
cat $^ | openssl dgst -sha1 | cut -d' ' -f2 > $@
fw: verify.key fw.tar
fw.tar: certificate.info aes.key.rsa sign.sha1.rsa update.aes update.bin.aes $(FW_XTRA_FILES)
tar cvf $@ $^ $(FW_XTRA_FILES)
update.sha1: update.aes
openssl dgst -sha1 $^ | cut -d' ' -f2 > $@
update.aes: aes.key opt.squashfs
openssl aes-128-cbc -md md5 -kfile aes.key -nosalt -e -out $@ -in opt.squashfs
update.bin: aes.key update.aes update.sh
$(eval MD5SUM := $(shell openssl aes-128-cbc -md md5 -kfile aes.key -nosalt -d -in update.aes | md5sum - | cut -d' ' -f1 | md5sum - | cut -d' ' -f1))
sed -e "s/@@MODEL@@/\"$(MODEL)\"/" -e "s/@@MD5SUM@@/\"$(MD5SUM)\"/" -e "s/@@VERSION@@/\"1.0.0-$(BUILD)\"/" update.sh >update.bin
certificate.info:
echo "Publisher:DMdssdFW1" >$@
echo "Supported Models:$(MODEL),$(MODEL)" >>$@
echo "Firmware Version:1.0.0" >>$@
echo "Target:update.bin" >>$@
echo "Build No:$(BUILD)" >>$@
echo "Contents:update" >>$@
update.bin.aes: aes.key update.bin
openssl aes-128-cbc -md md5 -kfile aes.key -nosalt -e -out $@ -in update.bin
clean:
rm -f *.rsa *.aes opt.squashfs sign.sha1 certificate.info update.bin update.sha1 fw.tar verify.key
distclean: clean
rm -f aes.key random-signkey.pem