1 files changed, 60 insertions, 0 deletions

diff --git a/recipes-sota/aktualizr/aktualizr-device-prov-creds.bb b/recipes-sota/aktualizr/aktualizr-device-prov-creds.bb
new file mode 100644
index 0000000..6e02a50
--- /dev/null
+++ b/recipes-sota/aktualizr/aktualizr-device-prov-creds.bb
@@ -0,0 +1,60 @@
+SUMMARY = "Credentials for device provisioning with fleet CA certificate"
+HOMEPAGE = "https://github.com/advancedtelematic/aktualizr"
+SECTION = "base"
+LICENSE = "MPL-2.0"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MPL-2.0;md5=815ca599c9df247a0c7f619bab123dad"
+
+inherit allarch
+
+# WARNING: it is NOT a production solution. The secure way to provision devices
+# is to create certificate request directly on the device (either with HSM/TPM
+# or with software) and then sign it with a CA stored on a disconnected machine.
+
+DEPENDS = "aktualizr aktualizr-native"
+ALLOW_EMPTY_${PN} = "1"
+
+SRC_URI = " \
+            file://ca.cnf \
+            "
+
+require credentials.inc
+
+export SOTA_CACERT_PATH
+export SOTA_CAKEY_PATH
+
+do_install() {
+    if [ -n "${SOTA_PACKED_CREDENTIALS}" ]; then
+        if [ -z ${SOTA_CACERT_PATH} ]; then
+            SOTA_CACERT_PATH=${DEPLOY_DIR_IMAGE}/CA/cacert.pem
+            SOTA_CAKEY_PATH=${DEPLOY_DIR_IMAGE}/CA/ca.private.pem
+            mkdir -p ${DEPLOY_DIR_IMAGE}/CA
+            bbwarn "SOTA_CACERT_PATH is not specified, use default one at ${SOTA_CACERT_PATH}"
+
+            if [ ! -f ${SOTA_CACERT_PATH} ]; then
+                bbwarn "${SOTA_CACERT_PATH} does not exist, generate a new CA"
+                SOTA_CACERT_DIR_PATH="$(dirname "${SOTA_CACERT_PATH}")"
+                openssl genrsa -out ${SOTA_CACERT_DIR_PATH}/ca.private.pem 4096
+                openssl req -key ${SOTA_CACERT_DIR_PATH}/ca.private.pem -new -x509 -days 7300 -out ${SOTA_CACERT_PATH} -subj "/C=DE/ST=Berlin/O=Reis und Kichererbsen e.V/commonName=meta-updater" -batch -config ${WORKDIR}/ca.cnf -extensions cacert
+                bbwarn "${SOTA_CACERT_PATH} has been created, you'll need to upload it to the server"
+            fi
+        fi
+
+        if [ -z ${SOTA_CAKEY_PATH} ]; then
+            bbfatal "SOTA_CAKEY_PATH should be set when using device credential provisioning"
+        fi
+
+        install -m 0700 -d ${D}${localstatedir}/sota
+        aktualizr-cert-provider --credentials ${SOTA_PACKED_CREDENTIALS} \
+                                --fleet-ca ${SOTA_CACERT_PATH} \
+                                --fleet-ca-key ${SOTA_CAKEY_PATH} \
+                                --root-ca \
+                                --server-url \
+                                --local ${D} \
+                                --config ${STAGING_DIR_HOST}${libdir}/sota/sota-device-cred.toml
+    fi
+}
+
+FILES_${PN} = " \
+                ${localstatedir}/sota/*"
+
+# vim:set ts=4 sw=4 sts=4 expandtab: