1 files changed, 30 insertions, 0 deletions

diff --git a/meta-oe/classes/signing.bbclass b/meta-oe/classes/signing.bbclass
index f52d861b76..7fd167d937 100644
--- a/meta-oe/classes/signing.bbclass
+++ b/meta-oe/classes/signing.bbclass
@@ -129,6 +129,36 @@ signing_import_cert_from_der() {
     signing_pkcs11_tool --type cert --write-object "${der}" --label "${role}"
 }
 
+# signing_import_cert_chain_from_pem <role> <pem>
+#
+
+# Import a certificate *chain* from a PEM file to a role.
+# (e.g. multiple ones concatenated in one file)
+#
+# Due to limitations in the toolchain:
+#   signing class -> softhsm -> 'extract-cert'
+# the input certificate is split into a sequentially numbered list of roles,
+# starting at <role>_1
+#
+# (The limitations are the conversion step from x509 to a plain .der, and
+# extract-cert expecting a x509 and then producing only plain .der again)
+signing_import_cert_chain_from_pem() {
+    local role="${1}"
+    local pem="${2}"
+    local i=1
+
+    cat "${pem}" | \
+        while openssl x509 -inform pem -outform der -out ${B}/temp_${i}.der; do
+            signing_import_define_role "${role}_${i}"
+            signing_pkcs11_tool --type cert \
+                                --write-object  ${B}/temp_${i}.der \
+                                --label "${role}_${i}"
+            rm ${B}/temp_${i}.der
+            echo "imported ${pem} under role: ${role}_${i}"
+            i=$(awk "BEGIN {print $i+1}")
+        done
+}
+
 # signing_import_cert_from_pem <role> <pem>
 #
 # Import a certificate from PEM file to a role. To be used