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| author |   Bjørn Mork <bjorn@mork.no> | 2019-05-15 00:57:18 +0200 |
|---|---|---|
| committer | Bjørn Mork <bjorn@mork.no> | 2019-05-15 01:14:31 +0200 |
| commit | 27d3eba48447dff084e82be656488f9b2cbec2fa (patch) | |
| tree | 1cda59d79935e7d495fd65ea28f8bffa70b917f5 /Makefile | |
| parent | d2b0f7ebdc02b4e766aa0dacaee9532c4e98974e (diff) | |
Firmware image creation Makefile and updater script
The updater script is a simpler alternative to the script used by
D-Link in their firmware updates, supporting only "userdata" updates.
Run "make" to create a new squashfs file system for the "userdata"
partition and pack, encrypt and sign it for use with the original
D-Link firmware update tools fwupdate or firmwareupgrade.cgi.
See the documetation in this repo for usage instructions.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..2607982 --- /dev/null +++ b/Makefile @@ -0,0 +1,73 @@ +# 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 + |