scap-security-guide: pass the correct cpe/schemas/xsl paths to oscap

There is a build error when using openscap-native sstate cache mirror.
Steps to reproduce:
Create a new build project in build-1 directory.
$ bitbake openscap-native

Then remove all directories in build-1 directory except sstate-cache.
Use the sstate-cache directory as sstate mirror.

Create another new build project in build-2 directory.
Set SSATE_MIRRORS to point to the sstate-cache in build-1 directory.
$ bitbake scap-security-guide

Error message:
OpenSCAP Error: Schema file 'sds/1.3/scap-source-data-stream_1.3.xsd' not found in path
'/build-1/tmp-glibc/work-shared/openscap/oscap-build-artifacts/usr/share/openscap/schemas' when trying to validate
'/build-2/tmp-glibc/work/corei7-64-wrs-linux/scap-security-guide/0.1.67/build/ssg-openembedded-ds.xml'
[/build-1/tmp-glibc/work/x86_64-linux/openscap-native/1.3.8/git/src/source/validate.c:103]

The oscap command from openscap-native tries to find the schema files in
build-1 directory since these paths are hardcoded when building
openscap-native.

We need to pass the correct cpe/schemas/xsl paths to oscap to make sure
it can find the files in right location.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/recipes-compliance/scap-security-guide/scap-security-guide_0.1.67.bb b/recipes-compliance/scap-security-guide/scap-security-guide_0.1.67.bb
index 988e48b..a972c24 100644
--- a/recipes-compliance/scap-security-guide/scap-security-guide_0.1.67.bb
+++ b/recipes-compliance/scap-security-guide/scap-security-guide_0.1.67.bb
@@ -22,6 +22,11 @@ B = "${S}/build"
 
 inherit cmake pkgconfig python3native python3targetconfig ptest
 
+STAGING_OSCAP_BUILDDIR = "${TMPDIR}/work-shared/openscap/oscap-build-artifacts"
+export OSCAP_CPE_PATH="${STAGING_OSCAP_BUILDDIR}${datadir_native}/openscap/cpe"
+export OSCAP_SCHEMA_PATH="${STAGING_OSCAP_BUILDDIR}${datadir_native}/openscap/schemas"
+export OSCAP_XSLT_PATH="${STAGING_OSCAP_BUILDDIR}${datadir_native}/openscap/xsl"
+
 OECMAKE_GENERATOR = "Unix Makefiles"
 
 EXTRA_OECMAKE += "-DENABLE_PYTHON_COVERAGE=OFF -DSSG_PRODUCT_DEFAULT=OFF -DSSG_PRODUCT_OE=ON"