scripts: west_commands: 54l15 provisioning

Adds 'west provision' command, that allows to upload
up to 3 ED25519 keys meant to be used for signature verification
by the bootloader.

Signed-off-by: Mateusz Michalek <[email protected]>

CODEOWNERS

@@ -594,6 +594,7 @@
 /scripts/west_commands/genboard/          @gmarull
 /scripts/west_commands/sbom/              @nrfconnect/ncs-si-muffin
 /scripts/west_commands/thingy91x_dfu.py   @nrfconnect/ncs-cia
+/scripts/west_commands/ncs-provision.py   @nrfconnect/ncs-pluto
 /scripts/bootloader/                      @nrfconnect/ncs-pluto
 /scripts/ncs-docker-version.txt           @nrfconnect/ncs-ci
 /scripts/print_docker_image.sh            @nrfconnect/ncs-ci

scripts/west-commands.yml

@@ -34,3 +34,8 @@ west-commands:
       - name: ncs-genboard
         class: NcsGenboard
         help: generate board skeleton files for any Nordic SoC
+  - file: scripts/west_commands/ncs-provision.py
+    commands:
+      - name: ncs-provision
+        class: NcsProvision
+        help: Provision utility

scripts/west_commands/ncs-provision.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+
+from pathlib import Path
+import re
+import sys
+import subprocess
+from cryptography.hazmat.primitives.serialization import load_pem_private_key
+from west.commands import WestCommand
+
+nrf54l15_key_slots = [226, 228, 230]
+
+
+class NcsProvision(WestCommand):
+    def __init__(self):
+        super().__init__(
+            "ncs-provision",
+            "NCS provision",
+            "NCS provision utility tool.",
+        )
+
+    def do_add_parser(self, parser_adder):
+        parser = parser_adder.add_parser(
+            self.name, help=self.help, description=self.description
+        )
+
+        subparsers = parser.add_subparsers(
+            dest="command"
+        )
+        upload_parser = subparsers.add_parser("upload", help="Send to KMU")
+        upload_parser.add_argument(
+            "-k", "--key", type=Path, action='append', dest="keys",
+            help="Input .pem file with ED25519 private key"
+        )
+        upload_parser.add_argument("-s", "--soc", type=str, help="SoC",
+                                   choices=["nrf54l15"],  required=True)
+
+        return parser
+
+    def do_run(self, args, unknown_args):
+        if args.command == "upload":
+            if args.soc == "nrf54l15":
+                if len(args.keys) > len(nrf54l15_key_slots):
+                    sys.exit(
+                        "Error: requested upload of more keys than there are designated slots.")
+                slot = 0
+                for keyfile in args.keys:
+                    with open(keyfile, 'rb') as f:
+                        priv_key = load_pem_private_key(f.read(), password=None)
+                    pub_key = priv_key.public_key()
+                    nrfprovision = subprocess.run(
+                       ["nrfprovision",
+                        "provision",
+                        "-r",
+                        "REVOKED",
+                        "-v",
+                        pub_key.public_bytes_raw().hex(),
+                        "-m",
+                        "0x10ba0030",
+                        "-i",
+                        str(nrf54l15_key_slots[slot]),
+                        "-a",
+                        "ED25519",
+                        "-d",
+                        "0x20000000",
+                        "--verify"],
+                       stderr=subprocess.PIPE,
+                       text=True)
+                    stderr = nrfprovision.stderr
+                    print(stderr, file=sys.stderr)
+                    if re.search('fail', stderr) or nrfprovision.returncode:
+                        sys.exit("Uploading failed!")
+                    slot += 1