build: improve handling of repository signing keys
This commit is contained in:
Matthias Schiffer
parent
cbe66e9388
commit
4b120deaee
76
Makefile
76
Makefile
@ -59,30 +59,37 @@ CheckTarget := [ -n '$(GLUON_TARGET)' -a -n '$(GLUON_TARGET_$(GLUON_TARGET)_BOAR
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CheckExternal := test -d $(GLUON_ORIGOPENWRTDIR) || (echo 'You don'"'"'t seem to have obtained the external repositories needed by Gluon; please call `make update` first!'; false)
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create-key: FORCE
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@$(CheckExternal)
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+@$(GLUONMAKE_EARLY) create-key
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prepare-target: FORCE
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@$(CheckExternal)
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@$(CheckTarget)
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+@$(GLUONMAKE_EARLY) prepare-target
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all: prepare-target
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+@$(GLUONMAKE) build-key
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+@$(GLUONMAKE) prepare
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+@$(GLUONMAKE) images
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+@$(GLUONMAKE) modules
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prepare: prepare-target
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+@$(GLUONMAKE) build-key
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+@$(GLUONMAKE) $@
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clean download images modules: FORCE
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@$(CheckExternal)
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@$(CheckTarget)
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+@$(GLUONMAKE_EARLY) maybe-prepare-target
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+@$(GLUONMAKE) build-key
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+@$(GLUONMAKE) $@
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toolchain/% package/% target/% image/%: FORCE
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@$(CheckExternal)
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@$(CheckTarget)
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+@$(GLUONMAKE_EARLY) maybe-prepare-target
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+@$(GLUONMAKE) build-key
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+@$(GLUONMAKE) $@
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manifest: FORCE
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@ -170,23 +177,6 @@ GLUON_$(1)_MODEL_$(2)_ALIASES += $(3)
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endef
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include $(GLUONDIR)/targets/targets.mk
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include $(GLUONDIR)/targets/$(GLUON_TARGET)/profiles.mk
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BOARD := $(GLUON_TARGET_$(GLUON_TARGET)_BOARD)
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override SUBTARGET := $(GLUON_TARGET_$(GLUON_TARGET)_SUBTARGET)
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target_prepared_stamp := $(BOARD_BUILDDIR)/target-prepared
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gluon_prepared_stamp := $(BOARD_BUILDDIR)/prepared
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PREPARED_RELEASE = $$(cat $(gluon_prepared_stamp))
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IMAGE_PREFIX = gluon-$(GLUON_SITE_CODE)-$(PREPARED_RELEASE)
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MODULE_PREFIX = gluon-$(GLUON_SITE_CODE)-$(PREPARED_RELEASE)
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include $(INCLUDE_DIR)/target.mk
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prereq: FORCE
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+$(NO_TRACE_MAKE) prereq
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@ -214,7 +204,43 @@ feeds: FORCE
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gluon-tools: FORCE
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+$(GLUONMAKE_EARLY) tools/sed/install
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+$(GLUONMAKE_EARLY) package/lua/host/install
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+$(GLUONMAKE_EARLY) package/lua/host/install package/usign/host/install
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prepare-early: FORCE
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for dir in build_dir dl staging_dir; do \
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mkdir -p $(GLUON_ORIGOPENWRTDIR)/$$dir; \
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done
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+$(GLUONMAKE_EARLY) feeds
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+$(GLUONMAKE_EARLY) gluon-tools
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create-key: prepare-early
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[ -s $(GLUON_OPKG_KEY) -a -s $(GLUON_OPKG_KEY).pub ] || \
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$(STAGING_DIR_HOST)/bin/usign -G -s $(GLUON_OPKG_KEY) -p $(GLUON_OPKG_KEY).pub -c "Gluon opkg key"
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include $(GLUONDIR)/targets/targets.mk
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ifneq ($(GLUON_TARGET),)
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include $(GLUONDIR)/targets/$(GLUON_TARGET)/profiles.mk
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BOARD := $(GLUON_TARGET_$(GLUON_TARGET)_BOARD)
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override SUBTARGET := $(GLUON_TARGET_$(GLUON_TARGET)_SUBTARGET)
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target_prepared_stamp := $(BOARD_BUILDDIR)/target-prepared
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gluon_prepared_stamp := $(BOARD_BUILDDIR)/prepared
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PREPARED_RELEASE = $$(cat $(gluon_prepared_stamp))
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IMAGE_PREFIX = gluon-$(GLUON_SITE_CODE)-$(PREPARED_RELEASE)
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MODULE_PREFIX = gluon-$(GLUON_SITE_CODE)-$(PREPARED_RELEASE)
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include $(INCLUDE_DIR)/target.mk
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build-key: FORCE
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ln -sf $(GLUON_OPKG_KEY) $(BUILD_KEY)
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ln -sf $(GLUON_OPKG_KEY).pub $(BUILD_KEY).pub
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config: FORCE
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+$(NO_TRACE_MAKE) scripts/config/conf OPENWRT_BUILD= QUIET=0
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@ -234,23 +260,18 @@ config: FORCE
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) > $(BOARD_BUILDDIR)/config.tmp
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scripts/config/conf --defconfig=$(BOARD_BUILDDIR)/config.tmp Config.in
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prepare-target: FORCE
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prepare-target: create-key
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rm $(GLUON_OPENWRTDIR)/tmp || true
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mkdir -p $(GLUON_OPENWRTDIR)/tmp
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for dir in build_dir dl staging_dir; do \
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mkdir -p $(GLUON_ORIGOPENWRTDIR)/$$dir; \
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done
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for link in build_dir config Config.in dl include Makefile package rules.mk scripts staging_dir target toolchain tools; do \
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ln -sf $(GLUON_ORIGOPENWRTDIR)/$$link $(GLUON_OPENWRTDIR); \
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done
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+$(GLUONMAKE_EARLY) feeds
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+$(GLUONMAKE_EARLY) gluon-tools
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+$(GLUONMAKE) config
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touch $(target_prepared_stamp)
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$(target_prepared_stamp):
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$(target_prepared_stamp): create-key
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+$(GLUONMAKE_EARLY) prepare-target
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maybe-prepare-target: $(target_prepared_stamp)
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@ -443,6 +464,7 @@ manifest: FORCE
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) : \
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) >> $(GLUON_BUILDDIR)/$(GLUON_BRANCH).manifest.tmp
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.PHONY: all images prepare modules clean gluon-tools manifest
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.PHONY: all create-key prepare images modules clean gluon-tools manifest
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endif
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endif
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@ -109,22 +109,60 @@ will clean the entire tree, so the toolchain will be rebuilt as well, which is
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not necessary in most cases, and will take a while.
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opkg repositories
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-----------------
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Gluon is mostly compatible with OpenWrt, so the normal OpenWrt package repositories
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can be used for Gluon as well. It is advisable to setup a mirror or reverse proxy
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reachable over IPv6 and add it to ``site.conf`` as http://downloads.openwrt.org/ does
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not support IPv6.
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This is not true for kernel modules; the Gluon kernel is incompatible with the
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kernel of the default OpenWrt images. Therefore, Gluon will not only generate images,
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but also an opkg repositoy containing all kernel modules provided by OpenWrt/Gluon
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for the kernel of the generated images.
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Signing keys
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............
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Gluon does not support HTTPS for downloading packages; fortunately, opkg deploys
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public-key cryptography to ensure package integrity.
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The Gluon images will contain two public keys: the official OpenWrt signing key
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(to allow installing userspace packages) and a Gluon-specific key (which is used
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to sign the generated module repository).
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By default, Gluon will handle the generation and handling of the keys itself.
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When making firmware releases based on Gluon, it might make sense to store the
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the keypair, so updating the module repository later is possible.
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The location the keys are stored at and read from can be changed
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(see :ref:`getting-started-environment-variables`). To only generate the keypair
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at the configured location without doing a full build, use ``make create-key``.
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.. _getting-started-environment-variables:
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Environment variables
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---------------------
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Gluon's build process can be controlled by various environment variables.
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GLUON_SITEDIR
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Path to the site configuration. Defaults to ``site/``.
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Path to the site configuration. Defaults to ``site``.
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GLUON_BUILDDIR
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Working directory during build. Defaults to ``build/``.
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Working directory during build. Defaults to ``build``.
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GLUON_OPKG_KEY
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Path key file used to sign the module opkg repository. Defaults to ``$(GLUON_BULDDIR)/gluon-opkg-key``.
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The private key will be stored as ``$(GLUON_OPKG_KEY)``, the public key as ``$(GLUON_OPKG_KEY).pub``.
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GLUON_OUTPUTDIR
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Path where output files will be stored. Defaults to ``output/``.
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Path where output files will be stored. Defaults to ``output``.
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GLUON_IMAGEDIR
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Path where images will be stored. Defaults to ``$(GLUON_OUTPUTDIR)/images/``.
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Path where images will be stored. Defaults to ``$(GLUON_OUTPUTDIR)/images``.
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GLUON_MODULEDIR
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Path where the kernel module opkg repository will be stored. Defaults to ``$(GLUON_OUTPUTDIR)/modules``.
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@ -11,6 +11,8 @@ GLUON_OUTPUTDIR ?= $(GLUONDIR)/output
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GLUON_IMAGEDIR ?= $(GLUON_OUTPUTDIR)/images
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GLUON_MODULEDIR ?= $(GLUON_OUTPUTDIR)/modules
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GLUON_OPKG_KEY ?= $(GLUON_BUILDDIR)/gluon-opkg-key
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export GLUONDIR GLUON_SITEDIR GLUON_BUILDDIR GLUON_SITE_CONFIG GLUON_OUTPUTDIR GLUON_IMAGEDIR GLUON_MODULEDIR
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