From nobody Sat Feb 7 08:27:59 2026 Received: from mailgw01.zimbra-vnc.de (mailgw01.zimbra-vnc.de [148.251.101.236]) (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 D35D1217723; Mon, 26 Jan 2026 19:35:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.101.236 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769456133; cv=none; b=ufBN+MyMLrZJesllQCwNeOaBs0wyR/jefd9JTUsxPLS5OJKyIbjtSRZQgi4IshiL+7u35H42Uty+7+IEtaOIKlFKBP08qVyLskCvCo+gloocHsswqpREASSPFSoNGhNYV3pWj7CAc/t/2ireZfULBZH7ICe6gyV/3RCxwSs0HBE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769456133; c=relaxed/simple; bh=Th3sKvwarQGiGkATSt8SwerBpRF0rch7/VQ2w8JJx58=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=H0RmH3INrL3PvncjaWAR8Z8I2TCRnYMN9tPOIdum8O+MNm1F7Hcq82NDh86fDYnSuKqP1OvRpHzJ+aVWiHxvCvA1RkEQgVzgAulL1QYa1cjkSLHfygdPPbTnM2K1gK/3gA4Y9CesgI87N62UyONZwFjd8fRg43Tbls51XecOzjM= 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=a4TflKfV; arc=none smtp.client-ip=148.251.101.236 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="a4TflKfV" Received: from zmproxy.tng.vnc.biz (zimbra-vnc.tngtech.com [35.234.71.156]) by mailgw01.zimbra-vnc.de (Postfix) with ESMTPS id 8A9A93FAF3; Mon, 26 Jan 2026 20:35:27 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zmproxy.tng.vnc.biz (Postfix) with ESMTP id 46F601FA707; Mon, 26 Jan 2026 20:35:27 +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 qDAkr-IRflZw; Mon, 26 Jan 2026 20:35:26 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by zmproxy.tng.vnc.biz (Postfix) with ESMTP id C2D201FA8B0; Mon, 26 Jan 2026 20:35:25 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.10.3 zmproxy.tng.vnc.biz C2D201FA8B0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tngtech.com; s=B14491C6-869D-11EB-BB6C-8DD33D883B31; t=1769456125; bh=mrKJ1t+v6kBR56XzilwCkJ0QgGrOaHh/FXUhLzq/HbE=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=a4TflKfVwMpAdJM5KHLyZ0TaCQOLGQTIxhvSTW9u+klDRJyLoNHNpSsBjolM/pSE4 3LjvX3LBNvZ5isDcmxQxt47hlKbAzuMIfF8uW6moB4zkwka6Zt8xMzCEy/Nj43qinI oymXbY8eliX+f1G7J5F9Q9IvWqSc34HAEkyMB//AXwp2bl4clYCkZNeDS/O5F50tiY GIb4egYi11/QT6zDIaskeSYz3xbw5BvHduAGqQqdjRWOSLfEW3hLs+xhWgCRf0DiYC t/irdxllXiQ2/LPCiTuiroFrIZvb2nb7U5ADpH2ZuXIViQ4b+xZ0fUAGtyT0m7RlKk CR7KM14UEPDDg== 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 jvmznrzUbbn3; Mon, 26 Jan 2026 20:35:25 +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 01B9F1FA894; Mon, 26 Jan 2026 20:35:24 +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 v3 08/14] tools/sbom: add shared SPDX elements Date: Mon, 26 Jan 2026 20:32:58 +0100 Message-Id: <20260126193304.320916-9-luis.augenstein@tngtech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260126193304.320916-1-luis.augenstein@tngtech.com> References: <20260126193304.320916-1-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 0985457c3cae..9278e2be7cb2 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 bb3db4e423da..9c47258a31c6 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 000000000000..0c83428f4c70 --- /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