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https://github.com/systemd/systemd
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c8596cc640
Allow systemd units to require/bind to MTD devices. One use case is for using a systemd service to attach an MTD device to an UBI controller, which cannot be done until the MTD device has been probed. Fixes #33096
95 lines
5.3 KiB
Plaintext
95 lines
5.3 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="systemd_end"
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SUBSYSTEM=="tty", KERNEL=="tty[a-zA-Z]*|hvc*|xvc*|hvsi*|ttysclp*|sclp_line*|3270/tty[0-9]*", TAG+="systemd"
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# Exclude 8250 serial ports with a zero IO port, as they are not usable until "setserial /dev/ttySxxx port …" is invoked.
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SUBSYSTEM=="tty", KERNEL=="ttyS*", DRIVERS=="serial8250", ATTR{port}=="0x0", ENV{SYSTEMD_READY}="0"
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KERNEL=="vport*", TAG+="systemd"
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SUBSYSTEM=="ptp", TAG+="systemd"
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SUBSYSTEM=="mtd", TAG+="systemd"
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SUBSYSTEM=="ubi", TAG+="systemd"
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SUBSYSTEM=="block", TAG+="systemd"
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# When a dm device is first created, it's just an empty container. Ignore it.
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# DM_NAME is not set in this case, but it's set on spurious "add" events that occur later.
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SUBSYSTEM=="block", ACTION=="add", KERNEL=="dm-*", ENV{DM_NAME}!="?*", ENV{SYSTEMD_READY}="0"
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# DM_UDEV_DISABLE_OTHER_RULES_FLAG==1 means that the device shouldn't be probed.
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# Import previous SYSTEMD_READY state.
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SUBSYSTEM=="block", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", ENV{SYSTEMD_READY}=="", IMPORT{db}="SYSTEMD_READY"
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# Ignore encrypted devices with no identified superblock on it, since
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# we are probably still calling mke2fs or mkswap on it.
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SUBSYSTEM=="block", ENV{DM_UUID}=="CRYPT-*", ENV{ID_PART_TABLE_TYPE}=="", ENV{ID_FS_USAGE}=="", ENV{SYSTEMD_READY}="0"
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# add symlink to GPT root disk
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SUBSYSTEM=="block", ENV{ID_PART_GPT_AUTO_ROOT}=="1", ENV{ID_FS_TYPE}!="crypto_LUKS", SYMLINK+="gpt-auto-root"
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SUBSYSTEM=="block", ENV{ID_PART_GPT_AUTO_ROOT}=="1", ENV{ID_FS_TYPE}=="crypto_LUKS", SYMLINK+="gpt-auto-root-luks"
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SUBSYSTEM=="block", ENV{DM_UUID}=="CRYPT-*", ENV{DM_NAME}=="root", SYMLINK+="gpt-auto-root"
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# Ignore raid devices that are not yet assembled and started
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SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", KERNEL=="md*", TEST!="md/array_state", ENV{SYSTEMD_READY}="0"
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SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", KERNEL=="md*", ATTR{md/array_state}=="|clear|inactive", ENV{SYSTEMD_READY}="0"
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# Ignore loop devices that don't have any file attached
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SUBSYSTEM=="block", KERNEL=="loop[0-9]*", ENV{DEVTYPE}=="disk", TEST!="loop/backing_file", ENV{SYSTEMD_READY}="0"
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# Ignore nbd devices until the PID file exists (which signals a connected device)
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SUBSYSTEM=="block", KERNEL=="nbd*", ENV{DEVTYPE}=="disk", TEST!="pid", ENV{SYSTEMD_READY}="0"
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# We need a hardware independent way to identify network devices. We
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# use the /sys/subsystem/ path for this. Kernel "bus" and "class" names
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# should be treated as one namespace, like udev handles it. This is mostly
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# just an identification string for systemd, so whether the path actually is
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# accessible or not does not matter as long as it is unique and in the
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# filesystem namespace.
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SUBSYSTEM=="net", KERNEL!="lo", TAG+="systemd", ENV{SYSTEMD_ALIAS}+="/sys/subsystem/net/devices/$name"
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SUBSYSTEM=="bluetooth", TAG+="systemd", ENV{SYSTEMD_ALIAS}+="/sys/subsystem/bluetooth/devices/%k", \
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ENV{SYSTEMD_WANTS}+="bluetooth.target", ENV{SYSTEMD_USER_WANTS}+="bluetooth.target"
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ENV{ID_SMARTCARD_READER}=="?*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="smartcard.target", ENV{SYSTEMD_USER_WANTS}+="smartcard.target"
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SUBSYSTEM=="sound", KERNEL=="controlC*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="sound.target", ENV{SYSTEMD_USER_WANTS}+="sound.target"
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SUBSYSTEM=="printer", TAG+="systemd", ENV{SYSTEMD_WANTS}+="printer.target", ENV{SYSTEMD_USER_WANTS}+="printer.target"
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SUBSYSTEM=="usb", KERNEL=="lp*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="printer.target", ENV{SYSTEMD_USER_WANTS}+="printer.target"
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SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ENV{ID_USB_INTERFACES}=="*:0701??:*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="printer.target", ENV{SYSTEMD_USER_WANTS}+="printer.target"
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SUBSYSTEM=="udc", TAG+="systemd", ENV{SYSTEMD_WANTS}+="usb-gadget.target"
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# Apply sysctl variables to network devices (and only to those) as they appear.
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ACTION=="add", SUBSYSTEM=="net", KERNEL!="lo", RUN+="{{LIBEXECDIR}}/systemd-sysctl --prefix=/net/ipv4/conf/$name --prefix=/net/ipv4/neigh/$name --prefix=/net/ipv6/conf/$name --prefix=/net/ipv6/neigh/$name"
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{% if ENABLE_BACKLIGHT %}
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# Pull in backlight save/restore for all backlight devices and
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# keyboard backlights
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SUBSYSTEM=="backlight", TAG+="systemd", IMPORT{builtin}="path_id", ENV{SYSTEMD_WANTS}+="systemd-backlight@backlight:$name.service"
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SUBSYSTEM=="leds", KERNEL=="*kbd_backlight*", TAG+="systemd", IMPORT{builtin}="path_id", ENV{SYSTEMD_WANTS}+="systemd-backlight@leds:$name.service"
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{% endif %}
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# Pull in rfkill save/restore for all rfkill devices
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SUBSYSTEM=="rfkill", ENV{SYSTEMD_RFKILL}="1"
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SUBSYSTEM=="rfkill", IMPORT{builtin}="path_id"
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SUBSYSTEM=="misc", KERNEL=="rfkill", TAG+="systemd", ENV{SYSTEMD_WANTS}+="systemd-rfkill.socket"
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# Asynchronously mount file systems implemented by these modules as soon as they are loaded.
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SUBSYSTEM=="module", KERNEL=="fuse", TAG+="systemd", ENV{SYSTEMD_WANTS}+="sys-fs-fuse-connections.mount"
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SUBSYSTEM=="module", KERNEL=="configfs", TAG+="systemd", ENV{SYSTEMD_WANTS}+="sys-kernel-config.mount"
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# Pull in tpm2.target whenever /dev/tpmrm* shows up
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SUBSYSTEM=="tpmrm", KERNEL=="tpmrm[0-9]*", TAG+="systemd", ENV{SYSTEMD_WANTS}+="tpm2.target"
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LABEL="systemd_end"
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