mirror of
https://github.com/morgan9e/systemd
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57 lines
4.1 KiB
Plaintext
57 lines
4.1 KiB
Plaintext
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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ACTION=="remove", GOTO="image_dissect_end"
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SUBSYSTEM!="block", GOTO="image_dissect_end"
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# Add symlink to GPT root disk – in two flavours: one which takes the factory
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# reset state into account, and one which does not. The former is useful for
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# wipe-rootfs-on-factory-reset scenarios where we should not be tempted to use
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# the root fs before factory reset is complete. The latter is useful for
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# wipe-only-/var-on-factory-reset where we should use it (because that's where
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# repart.d/ definitions are placed which tell us what to wipe).
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ENV{ID_PART_GPT_AUTO_ROOT}!="1", GOTO="gpt_auto_root_end"
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IMPORT{builtin}="factory_reset status"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_FACTORY_RESET}!="on", SYMLINK+="gpt-auto-root"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="gpt-auto-root-ignore-factory-reset"
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ENV{ID_FS_TYPE}=="crypto_LUKS", ENV{ID_FACTORY_RESET}!="on", SYMLINK+="gpt-auto-root-luks"
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ENV{ID_FS_TYPE}=="crypto_LUKS", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="gpt-auto-root-luks-ignore-factory-reset"
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LABEL="gpt_auto_root_end"
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# Note we don't need to condition the gpt-auto-root LUKS symlink for
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# auto-discovered LUKS devices, because it's sufficient if we do this for the
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# underlying partition block device, which is covered by the above.
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ENV{DM_UUID}=="CRYPT-*", ENV{DM_NAME}=="root", IMPORT{builtin}="factory_reset status", SYMLINK+="gpt-auto-root"
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ENV{DM_UUID}=="CRYPT-*", ENV{DM_NAME}=="root", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="gpt-auto-root-ignore-factory-reset"
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# If this is the whole disk that we booted from, then dissect it
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ENV{DEVTYPE}=="disk", ENV{ID_PART_GPT_AUTO_ROOT_DISK}=="1", IMPORT{builtin}="dissect_image probe"
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ENV{DEVTYPE}=="disk", ENV{ID_PART_GPT_AUTO_ROOT_DISK}=="1", ENV{ID_FACTORY_RESET}=="", IMPORT{builtin}="factory_reset status"
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# If this is a partition, and we found something on the parent, then copy the
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# right properties from the parent, and rename them
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ENV{DEVTYPE}=="partition", ENV{ID_DISSECT_IMAGE}!="", IMPORT{builtin}="dissect_image copy"
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# Create symlinks based on the designator for the partitions themselves. If we detect LUKS or Verity, suffix them with "-luks" or "-vdata"
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ENV{DEVTYPE}!="partition", GOTO="dissect_partition_symlinks_end"
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ENV{ID_DISSECT_PART_DESIGNATOR}=="", GOTO="dissect_partition_symlinks_end"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_DISSECT_PART_HAS_VERITY}!="1", ENV{ID_FACTORY_RESET}!="on", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_DISSECT_PART_HAS_VERITY}!="1", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}-ignore-factory-reset"
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ENV{ID_FS_TYPE}=="crypto_LUKS", ENV{ID_FACTORY_RESET}!="on", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}-luks"
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ENV{ID_FS_TYPE}=="crypto_LUKS", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}-luks-ignore-factory-reset"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_DISSECT_PART_HAS_VERITY}=="1", ENV{ID_FACTORY_RESET}!="on", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}-verity-data"
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ENV{ID_FS_TYPE}!="crypto_LUKS", ENV{ID_DISSECT_PART_HAS_VERITY}=="1", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="disk/by-designator/$env{ID_DISSECT_PART_DESIGNATOR}-verity-data-ignore-factory-reset"
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LABEL="dissect_partition_symlinks_end"
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# For LUKS or Verity partitions we rely on the selected volume name
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ENV{DM_UUID}=="CRYPT-*", ENV{DM_NAME}=="root|usr|home|srv|swap|tmp|var", IMPORT{builtin}="factory_reset status", SYMLINK+="disk/by-designator/$env{DM_NAME}"
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ENV{DM_UUID}=="CRYPT-*", ENV{DM_NAME}=="root|usr|home|srv|swap|tmp|var", ENV{ID_FACTORY_RESET}=="on|complete", SYMLINK+="disk/by-designator/$env{DM_NAME}-ignore-factory-reset"
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LABEL="image_dissect_end"
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