[Buildroot] [RFC v9 01/10] cpe-info: new make target

[Matt Weber]

Similar to make legal-info, produce a csv delimited file containing
all selected packages CPE identification.

By default, support the pkg infra defining a set of CPE_ID_* defaults
using the package name for the vendor and name as most CPE IDs seem
to align with that assumption. Plus initially, use the pkg version as
the CPE ID's version field.

Signed-off-by: Matthew Weber <matthew.weber at rockwellcollins.com>
---
Changes

v9
 - Rebase

v8
 - Removed CVE patched list as this isn't implmented.

v4 -> v7
 - No change

v3
[Thomas P
 - Merged infra define CPE_ID_*  into this patch
 - Report all packages vs restricting to just allowing based on if
   the VENDOR was set (v2). This now represents Thomas P's original
   idea to report everything.  At first I felt I should restrict
   the reporting to those CPE IDs we had made sure were correct.
   Turns out we should have actually let the script handle fixing
   the CPEs and just make a complete design of this up front.

[Matt
 - Moved to using the _project on all vendors instead of just name

v2
[Thomas P
 - Moved comment on conditionals back to this patchset where
   the conditional is created vs later
---
 Makefile               | 17 ++++++++++++++++-
 package/pkg-generic.mk | 13 +++++++++++++
 package/pkg-utils.mk   |  8 ++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index ce1c08a6f6..3dcc47efa8 100644
--- a/Makefile
+++ b/Makefile
@@ -135,7 +135,7 @@ nobuild_targets := source %-source \
 	clean distclean help show-targets graph-depends \
 	%-graph-depends %-show-depends %-show-version \
 	graph-build graph-size list-defconfigs \
-	savedefconfig update-defconfig printvars
+	savedefconfig update-defconfig printvars cpe-info %-cpe-info
 ifeq ($(MAKECMDGOALS),)
 BR_BUILDING = y
 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
@@ -222,6 +222,7 @@ LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
+CPE_MANIFEST_CSV = $(BASE_DIR)/cpe-manifest.csv
 
 BR2_CONFIG = $(CONFIG_DIR)/.config
 
@@ -864,6 +865,19 @@ legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all
 		mv .legal-info.sha256 legal-info.sha256)
 	@echo "Legal info produced in $(LEGAL_INFO_DIR)"
 
+.PHONY: cpe-info-clean
+cpe-info-clean:
+	@rm -f $(CPE_MANIFEST_CSV)
+
+.PHONY: cpe-info-prepare
+cpe-info-prepare:
+	@$(call MESSAGE,"Gathering CPE info")
+	@$(call cpe-manifest,CPE ID,CVE PATCHED,PACKAGE,VERSION,SOURCE SITE)
+
+.PHONY: cpe-info
+cpe-info: cpe-info-clean cpe-info-prepare $(foreach p,$(PACKAGES),$(p)-cpe-info)
+	@echo "CPE info produced in $(CPE_MANIFEST_CSV)"
+
 .PHONY: show-targets
 show-targets:
 	@echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
@@ -1145,6 +1159,7 @@ help:
 	@echo '  legal-info             - generate info about license compliance'
 	@echo '  show-info              - generate info about packages, as a JSON blurb'
 	@echo '  printvars              - dump internal variables selected with VARS=...'
+	@echo '  cpe-info               - generate info about security CPE identification'
 	@echo
 	@echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 	@echo '  make O=dir             - Locate all output files in "dir", including .config'
diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index f9385177ac..1408845613 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -971,6 +971,18 @@ else
 $(2)_KCONFIG_VAR = BR2_PACKAGE_$(2)
 endif
 
+$(2)_CPE_ID_VENDOR ?= $$($(2)_NAME)_project
+$(2)_CPE_ID_NAME ?= $$($(2)_NAME)
+$(2)_CPE_ID_VERSION ?= $$($(2)_VERSION)
+$(2)_CPE_ID ?= $$($(2)_CPE_ID_VENDOR):$$($(2)_CPE_ID_NAME):$$($(2)_CPE_ID_VERSION)
+
+$(1)-cpe-info: PKG=$(2)
+$(1)-cpe-info:
+ifneq ($$(call qstrip,$$($(2)_SOURCE)),)
+	@$$(call MESSAGE,"Collecting cpe info")
+	$(Q)$$(call cpe-manifest,$$($(2)_CPE_ID),$$($(2)_RAWNAME),$$($(2)_VERSION),$$($(2)_ACTUAL_SOURCE_SITE))
+endif # ifneq ($$(call qstrip,$$($(2)_SOURCE)),)
+
 # legal-info: declare dependencies and set values used later for the manifest
 ifneq ($$($(2)_LICENSE_FILES),)
 $(2)_MANIFEST_LICENSE_FILES = $$($(2)_LICENSE_FILES)
@@ -1116,6 +1128,7 @@ DL_TOOLS_DEPENDENCIES += $$(call extractor-system-dependency,$$($(2)_SOURCE))
 	$(1)-clean-for-reconfigure \
 	$(1)-clean-for-reinstall \
 	$(1)-configure \
+	$(1)-cpe-info \
 	$(1)-depends \
 	$(1)-dirclean \
 	$(1)-external-deps \
diff --git a/package/pkg-utils.mk b/package/pkg-utils.mk
index d88a14ab0f..9818eda12d 100644
--- a/package/pkg-utils.mk
+++ b/package/pkg-utils.mk
@@ -223,3 +223,11 @@ legal-deps = \
         $(filter-out $(if $(1:host-%=),host-%),\
             $(call non-virtual-deps,\
                 $($(call UPPERCASE,$(1))_FINAL_RECURSIVE_DEPENDENCIES))),$(p) [$($(call UPPERCASE,$(p))_LICENSE)])
+
+#
+# cpe-info helper functions
+#
+
+define cpe-manifest # cpe, pkg name, version, url
+	echo '"$(1)","$(2)","$(3)","$(4)"' >>$(CPE_MANIFEST_CSV)
+endef
-- 
2.17.1