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[185.136.64.226]) by gmr-mx.google.com with ESMTPS id a640c23a62f3a-b724130ff62si16260066b.3.2025.11.05.01.37.21 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Nov 2025 01:37:21 -0800 (PST) Received-SPF: pass (google.com: domain of fm-51332-20251105093721d1dd851f5e0002073d-ewm3aj@rts-flowmailer.siemens.com designates 185.136.64.226 as permitted sender) client-ip=185.136.64.226; Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 20251105093721d1dd851f5e0002073d for ; Wed, 05 Nov 2025 10:37:21 +0100 From: "'Quirin Gylstorff' via isar-users" To: isar-users@googlegroups.com, jan.kiszka@siemens.com, felix.moessbauer@siemens.com, cedric.hombourger@siemens.com Subject: [PATCH v6 11/13] Add dracut module helper Date: Wed, 5 Nov 2025 10:29:26 +0100 Message-ID: <20251105093710.19582-12-Quirin.Gylstorff@siemens.com> In-Reply-To: <20251105093710.19582-1-Quirin.Gylstorff@siemens.com> References: <20251105093710.19582-1-Quirin.Gylstorff@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-51332:519-21489:flowmailer X-Original-Sender: quirin.gylstorff@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=fm1 header.b=HcOB11sC; spf=pass (google.com: domain of fm-51332-20251105093721d1dd851f5e0002073d-ewm3aj@rts-flowmailer.siemens.com designates 185.136.64.226 as permitted sender) smtp.mailfrom=fm-51332-20251105093721d1dd851f5e0002073d-EWm3aj@rts-flowmailer.siemens.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=siemens.com X-Original-From: Quirin Gylstorff Reply-To: Quirin Gylstorff Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Status: No, score=-4.9 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,RCVD_IN_RP_CERTIFIED, RCVD_IN_RP_RNBL,RCVD_IN_RP_SAFE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-TUID: QaYGVGjlEqg/ From: Quirin Gylstorff This adds a helper class similar to initramfs-hook to generate a dracut module based on dpkg-raw. Signed-off-by: Quirin Gylstorff --- meta/classes/dracut-module.bbclass | 87 +++++++++++++++++++ .../dracut-module/files/module-setup.sh.tmpl | 42 +++++++++ 2 files changed, 129 insertions(+) create mode 100644 meta/classes/dracut-module.bbclass create mode 100644 meta/recipes-initramfs/dracut-module/files/module-setup.sh.tmpl diff --git a/meta/classes/dracut-module.bbclass b/meta/classes/dracut-module.bbclass new file mode 100644 index 00000000..364fb5b4 --- /dev/null +++ b/meta/classes/dracut-module.bbclass @@ -0,0 +1,87 @@ +# +# Copyright (c) Siemens AG, 2025 +# +# Authors: +# Quirin Gylstorff +# +# SPDX-License-Identifier: MIT +# + +inherit dpkg-raw + +FILESPATH:append = ":${LAYERDIR_core}/recipes-initramfs/dracut-module/files" + +DPKG_ARCH = "all" + +DRACUT_MODULE_SETUP = "module-setup.sh" +SRC_URI:append = "file://${DRACUT_MODULE_SETUP}.tmpl" + +DRACUT_MODULE_NO ??= "50" +DRACUT_MODULE_NAME ?= "${@ d.getVar('PN')[7:] if d.getVar('PN').startswith('dracut-') else d.getVAR('PN')}" + +DEBIAN_DEPENDS = "dracut-core" +DRACUT_MODULE_PATH = "${D}/usr/lib/dracut/modules.d/${DRACUT_MODULE_NO}${DRACUT_MODULE_NAME}/" + +DRACUT_REQUIRED_BINARIES ??= "" +DRACUT_MODULE_DEPENDENCIES ??= "" +DRACUT_CHECK_CONTENT_FILE_NAME ??= "" +DRACUT_DEPENDS_CONTENT_FILE_NAME ??= "" +DRACUT_CMDLINE_CONTENT_FILE_NAME ??= "" +DRACUT_INSTALL_CONTENT_FILE_NAME ??= "" +DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME ??= "" + +def add_file_if_variable_is_set(d, variable_name, prefix): + variable = d.getVar(variable_name) or '' + if variable: + return f"{prefix}{variable}" + return '' + +def replace_marker_with_file_content(template_file, content_file, marker): + with open(template_file, 'r') as template_fd: + tmpl_content = template_fd.read() + + with open(content_file, 'r') as content_fd: + content = content_fd.read() + + new_tpml_content = tmpl_content.replace(marker, content) + with open(template_file, 'w') as tmpl_fd: + tmpl_fd.write(new_tpml_content) + +SRC_URI:append = " ${@ add_file_if_variable_is_set(d, 'DRACUT_CHECK_CONTENT_FILE_NAME', 'file://')} \ + ${@ add_file_if_variable_is_set(d, 'DRACUT_DEPENDS_CONTENT_FILE_NAME', 'file://')} \ + ${@ add_file_if_variable_is_set(d, 'DRACUT_CMDLINE_CONTENT_FILE_NAME', 'file://')} \ + ${@ add_file_if_variable_is_set(d, 'DRACUT_INSTALL_CONTENT_FILE_NAME', 'file://')} \ + ${@ add_file_if_variable_is_set(d, 'DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME', 'file://')}" + +TEMPLATE_FILES:append = " \ + ${DRACUT_MODULE_SETUP}.tmpl \ + " + +TEMPLATE_VARS:append = " \ + DRACUT_REQUIRED_BINARIES \ + DRACUT_MODULE_DEPENDENCIES \ + " +python do_add_additional_dracut_configuration() { + workdir = os.path.normpath(d.getVar('WORKDIR')) + module_setup = d.getVar('DRACUT_MODULE_SETUP') + module_setup_tpml = f"{module_setup}.tmpl" + content_file_name_to_marker = { + "DRACUT_CHECK_CONTENT_FILE_NAME" : "# ISAR_DRACUT_CHECK", + "DRACUT_DEPENDS_CONTENT_FILE_NAME" : "# ISAR_DRACUT_DEPENDS", + "DRACUT_CMDLINE_CONTENT_FILE_NAME" : "# ISAR_DRACUT_CMDLINE", + "DRACUT_INSTALL_CONTENT_FILE_NAME" : "# ISAR_DRACUT_INSTALL", + "DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME" : "# ISAR_DRACUT_KERNELINSTALL" + } + + for var_name, marker in content_file_name_to_marker.items(): + file_name = d.getVar(var_name) or '' + if file_name: + replace_marker_with_file_content(f"{workdir}/{module_setup_tpml}", + f"{workdir}/{file_name}", marker) +} +addtask add_additional_dracut_configuration before do_transform_template after do_patch + +do_install[cleandirs] += "${DRACUT_MODULE_PATH}" +do_install:append() { + install -m 770 ${WORKDIR}/${DRACUT_MODULE_SETUP} ${DRACUT_MODULE_PATH} +} diff --git a/meta/recipes-initramfs/dracut-module/files/module-setup.sh.tmpl b/meta/recipes-initramfs/dracut-module/files/module-setup.sh.tmpl new file mode 100644 index 00000000..be0f4c54 --- /dev/null +++ b/meta/recipes-initramfs/dracut-module/files/module-setup.sh.tmpl @@ -0,0 +1,42 @@ +#!/bin/bash + +# called by dracut +check() { + + # If the binary(s) requirements are not fulfilled the module can't be installed. + require_binaries \ + ${DRACUT_REQUIRED_BINARIES} \ + || return 1 + # ISAR_DRACUT_CHECK + return 0 + +} + +# Module dependency requirements. +depends() { + echo "${DRACUT_MODULE_DEPENDENCIES}" + # ISAR_DRACUT_DEPENDS + return 0 + +} +installkernel() { + # ISAR_DRACUT_KERNELINSTALL + return 0 +} + +cmdline() { + # ISAR_DRACUT_CMDLINE + return 0 +} + +install() { + for executable in ${DRACUT_REQUIRED_BINARIES}; do + if exec_path=$(command -v $executable 2>/dev/null); then + inst_binary "$exec_path" + else + echo "(ERROR): Unable to copy $executable" >&2 + exit 1 + fi + done + # ISAR_DRACUT_INSTALL +} -- 2.51.0 -- You received this message because you are subscribed to the Google Groups "isar-users" group. 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