From nobody Mon Feb 9 01:16:46 2026 Received: from mailgw02.zimbra-vnc.de (mailgw02.zimbra-vnc.de [148.251.102.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C3FC427E05E; Mon, 19 Jan 2026 06:49:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.102.236 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768805347; cv=none; b=NODsFrX0okjDkW7C3qlwGu6CnJwhXkzyxY/HCV1efQ0KzQ575FBzJk9Kum3pVZQm1cCR8A7oBXf0kikB8AvmvNzXYL3HzOVtLKuoGEo0haGRXB14PhXBsFTg2oc4wHv3++5fulVSy7DYtlC9cuBQc1qBxpW7kpNSJ4b37FP7XtI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768805347; c=relaxed/simple; bh=8i7kx01pGA78GKksWPyQSKGP3U95oDyL3JlYAUREOrQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gvlkRm3USSJGR4CCSKCqpP47T0antckm9ZamJZACNSTyh6zo6G9HxP+zy3uGMGV2sD1je/jclU8ZrNRLEt6v0PfMDhtTbWkjQ9qCA5FOYdOdx7GetOEfJQe3wCPg34boYiOfXI7STqovYmE2VrTN1YR6dOn4YXXN3673EnpF/Es= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tngtech.com; spf=pass smtp.mailfrom=tngtech.com; dkim=pass (2048-bit key) header.d=tngtech.com header.i=@tngtech.com header.b=AzkEA574; arc=none smtp.client-ip=148.251.102.236 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tngtech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tngtech.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tngtech.com header.i=@tngtech.com header.b="AzkEA574" Received: from zmproxy.tng.vnc.biz (zimbra-vnc.tngtech.com [35.234.71.156]) by mailgw02.zimbra-vnc.de (Postfix) with ESMTPS id 51FA8200C2; Mon, 19 Jan 2026 07:48:59 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zmproxy.tng.vnc.biz (Postfix) with ESMTP id 2FD6A1FA449; Mon, 19 Jan 2026 07:48:58 +0100 (CET) Received: from zmproxy.tng.vnc.biz ([127.0.0.1]) by localhost (zmproxy.tng.vnc.biz [127.0.0.1]) (amavis, port 10032) with ESMTP id LZG5TVgEAAQb; Mon, 19 Jan 2026 07:48:57 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zmproxy.tng.vnc.biz (Postfix) with ESMTP id 9030E1FA5F5; Mon, 19 Jan 2026 07:48:57 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.10.3 zmproxy.tng.vnc.biz 9030E1FA5F5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tngtech.com; s=B14491C6-869D-11EB-BB6C-8DD33D883B31; t=1768805337; bh=bZHn8RYpjRJkEa9Nnmi+y/s8Is1EbJKbSy/POxHHySQ=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=AzkEA574y+NdJ7OJZxHv0TRQsLFDptDDLJXwFx8RGbkUpRmdxTThDflue3a8FMjUu Qom/F60WMk2gGH9O8Z1cYS8p4s/COJFUuPik1qPyv/NxPq6zYD5hb0OxsdS9g8U5co Ynq9hLUryOoJpF/K+JPXtOz+RvRZs3zviOWEC50JXVjNc3B0AXfOgNlDmW45MnRYoK 4A9ThiiivFr4oRXdtv+XM0ZOKbWEx90u7T5Cb+JDkHPa/aA1WqzurwLF1VHLaGP7IG 5tgKi7tQVWiTe1uEbpYD3i1qESD7Q4yYbZHrLc7DFy1fZLKSaVG+iP2Q8LBGiI34Yc SorGeEDsc9uUw== X-Virus-Scanned: amavis at zmproxy.tng.vnc.biz Received: from zmproxy.tng.vnc.biz ([127.0.0.1]) by localhost (zmproxy.tng.vnc.biz [127.0.0.1]) (amavis, port 10026) with ESMTP id Hh-w-mNUoSqK; Mon, 19 Jan 2026 07:48:57 +0100 (CET) Received: from DESKTOP-0O0JV6I.localdomain (ipservice-092-208-231-176.092.208.pools.vodafone-ip.de [92.208.231.176]) by zmproxy.tng.vnc.biz (Postfix) with ESMTPSA id 40DA41FA449; Mon, 19 Jan 2026 07:48:57 +0100 (CET) From: Luis Augenstein To: nathan@kernel.org, nsc@kernel.org Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, gregkh@linuxfoundation.org, maximilian.huber@tngtech.com, Luis Augenstein Subject: [PATCH 08/14] tools/sbom: add shared SPDX elements Date: Mon, 19 Jan 2026 07:47:25 +0100 Message-Id: <20260119064731.23879-9-luis.augenstein@tngtech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260119064731.23879-1-luis.augenstein@tngtech.com> References: <20260119064731.23879-1-luis.augenstein@tngtech.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Implement shared SPDX elements used in all three documents. Co-developed-by: Maximilian Huber Signed-off-by: Maximilian Huber Signed-off-by: Luis Augenstein --- tools/sbom/sbom/config.py | 25 +++++++++++++++ .../sbom/sbom/spdx_graph/build_spdx_graphs.py | 5 ++- .../sbom/spdx_graph/shared_spdx_elements.py | 32 +++++++++++++++++++ 3 files changed, 61 insertions(+), 1 deletion(-) create mode 100644 tools/sbom/sbom/spdx_graph/shared_spdx_elements.py diff --git a/tools/sbom/sbom/config.py b/tools/sbom/sbom/config.py index 0985457c3..9278e2be7 100644 --- a/tools/sbom/sbom/config.py +++ b/tools/sbom/sbom/config.py @@ -3,6 +3,7 @@ =20 import argparse from dataclasses import dataclass +from datetime import datetime from enum import Enum import os from typing import Any @@ -52,6 +53,9 @@ class KernelSbomConfig: write_output_on_error: bool """Whether to write output documents even if errors occur.""" =20 + created: datetime + """Datetime to use for the SPDX created property of the CreationInfo e= lement.""" + spdxId_prefix: str """Prefix to use for all SPDX element IDs.""" =20 @@ -150,6 +154,16 @@ def _parse_cli_arguments() -> dict[str, Any]: =20 # SPDX specific options spdx_group =3D parser.add_argument_group("SPDX options", "Options for = customizing SPDX document generation") + spdx_group.add_argument( + "--created", + default=3DNone, + help=3D( + "The SPDX created property to use for the CreationInfo element= in " + "ISO format (YYYY-MM-DD [HH:MM:SS]).\n" + "If not provided the last modification time of the first root = output " + "is used. (default: None)" + ), + ) spdx_group.add_argument( "--spdxId-prefix", default=3D"urn:spdx.dev:", @@ -195,6 +209,16 @@ def get_config() -> KernelSbomConfig: fail_on_unknown_build_command =3D not args["do_not_fail_on_unknown_bui= ld_command"] write_output_on_error =3D args["write_output_on_error"] =20 + if args["created"] is None: + created =3D datetime.fromtimestamp(os.path.getmtime(os.path.join(o= bj_tree, root_paths[0]))) + else: + try: + created =3D datetime.fromisoformat(args["created"]) + except ValueError: + raise argparse.ArgumentTypeError( + f"Invalid date format for argument '--created': '{args['cr= eated']}'. " + "Expected ISO format (YYYY-MM-DD [HH:MM:SS])." + ) spdxId_prefix =3D args["spdxId_prefix"] prettify_json =3D args["prettify_json"] =20 @@ -218,6 +242,7 @@ def get_config() -> KernelSbomConfig: debug=3Ddebug, fail_on_unknown_build_command=3Dfail_on_unknown_build_command, write_output_on_error=3Dwrite_output_on_error, + created=3Dcreated, spdxId_prefix=3DspdxId_prefix, prettify_json=3Dprettify_json, ) diff --git a/tools/sbom/sbom/spdx_graph/build_spdx_graphs.py b/tools/sbom/s= bom/spdx_graph/build_spdx_graphs.py index bb3db4e42..9c47258a3 100644 --- a/tools/sbom/sbom/spdx_graph/build_spdx_graphs.py +++ b/tools/sbom/sbom/spdx_graph/build_spdx_graphs.py @@ -1,18 +1,20 @@ # SPDX-License-Identifier: GPL-2.0-only OR MIT # Copyright (C) 2025 TNG Technology Consulting GmbH =20 - +from datetime import datetime from typing import Protocol =20 from sbom.config import KernelSpdxDocumentKind from sbom.cmd_graph import CmdGraph from sbom.path_utils import PathStr from sbom.spdx_graph.spdx_graph_model import SpdxGraph, SpdxIdGeneratorCol= lection +from sbom.spdx_graph.shared_spdx_elements import SharedSpdxElements =20 =20 class SpdxGraphConfig(Protocol): obj_tree: PathStr src_tree: PathStr + created: datetime =20 =20 def build_spdx_graphs( @@ -33,4 +35,5 @@ def build_spdx_graphs( Returns: Dictionary of SPDX graphs """ + shared_elements =3D SharedSpdxElements.create(spdx_id_generators.base,= config.created) return {} diff --git a/tools/sbom/sbom/spdx_graph/shared_spdx_elements.py b/tools/sbo= m/sbom/spdx_graph/shared_spdx_elements.py new file mode 100644 index 000000000..0c83428f4 --- /dev/null +++ b/tools/sbom/sbom/spdx_graph/shared_spdx_elements.py @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0-only OR MIT +# Copyright (C) 2025 TNG Technology Consulting GmbH + +from dataclasses import dataclass +from datetime import datetime +from sbom.spdx.core import CreationInfo, SoftwareAgent +from sbom.spdx.spdxId import SpdxIdGenerator + + +@dataclass(frozen=3DTrue) +class SharedSpdxElements: + agent: SoftwareAgent + creation_info: CreationInfo + + @classmethod + def create(cls, spdx_id_generator: SpdxIdGenerator, created: datetime)= -> "SharedSpdxElements": + """ + Creates shared SPDX elements used across multiple documents. + + Args: + spdx_id_generator: Generator for creating SPDX IDs. + created: SPDX 'created' property used for the creation info. + + Returns: + SharedSpdxElements with agent and creation info. + """ + agent =3D SoftwareAgent( + spdxId=3Dspdx_id_generator.generate(), + name=3D"KernelSbom", + ) + creation_info =3D CreationInfo(createdBy=3D[agent], created=3Dcrea= ted.strftime("%Y-%m-%dT%H:%M:%SZ")) + return SharedSpdxElements(agent=3Dagent, creation_info=3Dcreation_= info) --=20 2.34.1