Merge branch 'recovery-firmware' of JF/PineTime into develop

1 files changed, 47 insertions, 0 deletions

diff --git a/tools/mcuboot/imgtool/boot_record.py b/tools/mcuboot/imgtool/boot_record.py
new file mode 100644
index 0000000..4112b22
--- /dev/null
+++ b/tools/mcuboot/imgtool/boot_record.py
@@ -0,0 +1,47 @@
+# Copyright (c) 2019, Arm Limited.
+# Copyright (c) 2020, Linaro Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from enum import Enum
+import cbor
+
+
+class SwComponent(int, Enum):
+    """
+    Software component property IDs specified by
+    Arm's PSA Attestation API 1.0 document.
+    """
+    TYPE = 1
+    MEASUREMENT_VALUE = 2
+    VERSION = 4
+    SIGNER_ID = 5
+    MEASUREMENT_DESCRIPTION = 6
+
+
+def create_sw_component_data(sw_type, sw_version, sw_measurement_description,
+                             sw_measurement_value, sw_signer_id):
+
+    # List of software component properties (Key ID + value)
+    properties = {
+        SwComponent.TYPE: sw_type,
+        SwComponent.VERSION: sw_version,
+        SwComponent.SIGNER_ID: sw_signer_id,
+        SwComponent.MEASUREMENT_DESCRIPTION: sw_measurement_description,
+    }
+
+    # Note: The measurement value must be the last item of the property
+    #       list because later it will be modified by the bootloader.
+    properties[SwComponent.MEASUREMENT_VALUE] = sw_measurement_value
+
+    return cbor.dumps(properties)