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d2b795f2b9
When we read the 'uevent' file we need to make sure, that we do not read the relative DEVNAME= path provided by the kernel and overwrite the absolute path udev expects here.
1688 lines
60 KiB
Plaintext
1688 lines
60 KiB
Plaintext
udev 178
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========
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Bugfix for the firmware loading behavior with kernel modules which
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try to load firmware in the module_init() path. The blocked event
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runs into a timout now, which should allow the firmware to be loaded.
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Bugfix for a wrong DEVNAME= export, which breaks at least the udev-acl
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tool.
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Bugfix for missing ID_ properties for GPT partitions.
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The RUN+="socket:.." option is deprecated and should not be used. A warning
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during rules parsing is printed now. Services which listen to udev events,
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need to subscribe to the netlink messages with libudev and not let udev block
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in the rules execution until the message is delivered.
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udev 177
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========
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Bugfix for rule_generator instalation.
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udev 176
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========
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The 'devtmpfs' filesystem is required now, udev will not create or delete
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device nodes anymore, it only adjusts permissions and ownership of device
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nodes and maintains additional symlinks.
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A writable /run directory (ususally tmpfs) is required now for a fully
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functional udev, there is no longer a fallback to /dev/.udev.
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The default 'configure' install locations have changed. Packages for systems
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with the historic / vs. /usr split need to be adapted, otherwise udev will
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be installed in /usr and not work properly. Example configuration options
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to install things the traditional way are in INSTALL.
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The default install location of the 'udevadm' tool moved from 'sbin'
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to /usr/bin. Some tools expect udevadm in 'sbin', a symlink to udevadm
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needs to be manually created if needed, or --bindir=/sbin be specified.
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The expected value of '--libexecdir=' has changed and must no longer contain
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the 'udev' directory.
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Kernel modules are now loaded directly by linking udev to 'libkmod'. The
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'modprobe' tool is no longer executed by udev.
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The 'blkid' tool is no longer executed from udev rules. Udev links
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directly to libblkid now.
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Firmware is loaded natively by udev now, the external 'firmware' binary
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is no longer used.
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All built-in tools can be listed and tested with 'udevadm test-builtin'.
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The 'udevadm control --reload-rules' option has been renamed to '--reload'.
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It now also reloads the kernel module configuration.
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The systemd socket files use PassCredentials=yes, which is available in
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systemd version 38.
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The udev build system only creates a .xz tarball now.
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All tabs in the source code used for indentation are replaced by spaces now. :)
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udev 175
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========
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Bugfixes.
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udev 174
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========
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Bugfixes.
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The udev daemon moved to /lib/udev/udevd. Non-systemd init systems
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and non-dracut initramfs image generators need to change the init
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scripts. Alternatively the udev build needs to move udevd back to
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/sbin or create a symlink in /sbin, which is not done by default.
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The path_id, usb_id, input_id tools are built-in commands now and
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the stand-alone tools do not exist anymore. Static lists of file in
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initramfs generators need to be updated. For testing, the commands
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can still be executed standalone with 'udevadm test-builtin <cmd>'.
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The fusectl filesystem is no longer mounted directly from udev.
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Systemd systems will take care of mounting fusectl and configfs
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now. Non-systemd systems need to ship their own rule if they
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need these filesystems auto-mounted.
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The long deprecated keys: SYSFS=, ID=, BUS= have been removed.
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The support for 'udevadm trigger --type=failed, and the
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RUN{fail_event_on_error} attribute was removed.
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The udev control socket is now created in /run/udev/control
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and no longer as an abstract namespace one.
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The rules to create persistent network interface and cdrom link
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rules automatically in /etc/udev/rules.d/ have been disabled by
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default. Explicit configuration will be required for these use
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cases, udev will no longer try to write any persistent system
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configuration from a device hotplug path.
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udev 173
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========
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Bugfixes.
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The udev-acl extra is no longer enabled by default now. To enable it,
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--enable-udev_acl needs to be given at ./configure time. On systemd
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systems, the udev-acl rules prevent it from running as the functionality
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has moved to systemd.
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udev 172
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========
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Bugfixes.
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Udev now enables kernel media-presence polling if available. Part
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of udisks optical drive tray-handling moved to cdrom_id: The tray
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is locked as soon as a media is detected to enable the receiving
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of media-eject-request events. Media-eject-request events will
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eject the media.
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Libudev enumerate is now able to enumerate a subtree of a given
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device.
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The mobile-action-modeswitch modeswitch tool was deleted. The
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functionality is provided by usb_modeswitch now.
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udev 171
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========
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Bugfixes.
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The systemd service files require systemd version 28. The systemd
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socket activation make it possible now to start 'udevd' and 'udevadm
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trigger' in parallel.
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udev 170
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========
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Fix bug in control message handling, which can lead to a failing
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udevadm control --exit. Thanks to Jürg Billeter for help tracking
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it down.
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udev 169
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========
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Bugfixes.
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We require at least Linux kernel 2.6.32 now. Some platforms might
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require a later kernel that supports accept4() and similar, or
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need to backport the trivial syscall wiring to the older kernels.
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The hid2hci tool moved to the bluez package and was removed.
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Many of the extras can be --enable/--disabled at ./configure
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time. The --disable-extras option was removed. Some extras have
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been disabled by default. The current options and their defaults
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can be checked with './configure --help'.
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udev 168
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========
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Bugfixes.
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Udev logs a warning now if /run is not writable at udevd
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startup. It will still fall back to /dev/.udev, but this is
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now considered a bug.
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The running udev daemon can now cleanly shut down with:
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udevadm control --exit
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Udev in initramfs should clean the state of the udev database
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with: udevadm info --cleanup-db which will remove all state left
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behind from events/rules in initramfs. If initramfs uses
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--cleanup-db and device-mapper/LVM, the rules in initramfs need
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to add OPTIONS+="db_persist" for all dm devices. This will
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prevent removal of the udev database for these devices.
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Spawned programs by PROGRAM/IMPORT/RUN now have a hard timeout of
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120 seconds per process. If that timeout is reached the spawned
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process will be killed. The event timeout can be overwritten with
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udev rules.
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If systemd is used, udev gets now activated by netlink data.
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Systemd will bind the netlink socket which will buffer all data.
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If needed, such setup allows a seemless update of the udev daemon,
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where no event can be lost during a udevd update/restart.
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Packages need to make sure to: systemctl stop udev.socket udev.service
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or 'mask' udev.service during the upgrade to prevent any unwanted
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auto-spawning of udevd.
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This version of udev conflicts with systemd version below 25. The
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unchanged service files will not wirk correctly.
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udev 167
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========
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Bugfixes.
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The udev runtime data moved from /dev/.udev/ to /run/udev/. The
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/run mountpoint is supposed to be a tmpfs mounted during early boot,
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available and writable to for all tools at any time during bootup,
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it replaces /var/run/, which should become a symlink some day.
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If /run does not exist, or is not writable, udev will fall back using
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/dev/.udev/.
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On systemd systems with initramfs and LVM used, packagers must
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make sure, that the systemd and initramfs versions match. The initramfs
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needs to create the /run mountpoint for udev to store the data, and
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mount this tmpfs to /run in the rootfs, so the that the udev database
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is preserved for the udev version started in the rootfs.
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The command 'udevadm info --convert-db' is gone. The udev daemon
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itself, at startup, converts any old database version if necessary.
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The systemd services files have been reorganized. The udev control
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socket is bound by systemd and passed to the started udev daemon.
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The udev-settle.service is no longer active by default. Services which
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can not handle hotplug setups properly need to actively pull it in, to
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act like a barrier. Alternatively the settle service can be unconditionally
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'systemctl'enabled, and act like a barrier for basic.target.
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The fstab_import callout is no longer built or installed. Udev
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should not be used to mount, does not watch changes to fstab, and
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should not mirror fstab values in the udev database.
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udev 166
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========
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Bugfixes.
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New and updated keymaps.
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udev 165
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========
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Bugfixes.
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The udev database has changed, After installation of a new udev
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version, 'udevadm info --convert-db' should be called, to let the new
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udev/libudev version read the already stored data.
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udevadm now supports quoting of property values, and prefixing of
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key names:
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$ udevadm info --export --export-prefix=MY_ --query=property -n sda
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MY_MAJOR='259'
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MY_MINOR='0'
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MY_DEVNAME='/dev/sda'
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MY_DEVTYPE='disk'
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...
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libudev now supports:
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udev_device_get_is_initialized()
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udev_enumerate_add_match_is_initialized()
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to be able to skip devices the kernel has created , but udev has
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not already handled.
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libudev now supports:
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udev_device_get_usec_since_initialized()
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to retrieve the "age" of a udev device record.
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GUdev supports a more generic GUdevEnumerator class, udev TAG
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handling, device initialization and timestamp now.
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The counterpart of /sys/dev/{char,block}/$major:$minor,
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/dev/{char,block}/$major:$minor symlinks are now unconditionally
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created, even when no rule files exist.
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New and updated keymaps.
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udev 164
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========
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Bugfixes.
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GUdev moved from /usr to /.
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udev 163
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========
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Bugfixes.
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udev 162
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========
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Bugfixes.
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Persistent network naming rules are disabled inside of Qemu/KVM now.
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New and updated keymaps.
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Udev gets unconditionally enabled on systemd installations now. There
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is no longer the need to to run 'systemctl enable udev.service'.
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udev 161
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========
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Bugfixes.
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udev 160
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========
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Bugfixes.
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udev 159
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========
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Bugfixes.
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New and fixed keymaps.
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Install systemd service files if applicable.
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udev 158
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========
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Bugfixes.
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All distribution specific rules are removed from the udev source tree,
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most of them are no longer needed. The Gentoo rules which allow to support
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older kernel versions, which are not covered by the default rules anymore
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has moved to rules/misc/30-kernel-compat.rules.
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udev 157
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========
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Bugfixes.
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The option --debug-trace and the environemnt variable UDEVD_MAX_CHILDS=
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was removed from udevd.
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Udevd now checks the kernel commandline for the following variables:
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udev.log-priority=<syslog priority>
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udev.children-max=<maximum number of workers>
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udev.exec-delay=<seconds to delay the execution of RUN=>
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to help debuging coldplug setups where the loading of a kernel
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module crashes the system.
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The subdirectory in the source tree rules/packages has been renamed to
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rules/arch, anc contains only architecture specific rules now.
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udev 156
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========
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Bugfixes.
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udev 155
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========
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Bugfixes.
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Now the udev daemon itself, does on startup:
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- copy the content of /lib/udev/devices to /dev
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- create the standard symlinks like /dev/std{in,out,err},
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/dev/core, /dev/fd, ...
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- use static node information provided by kernel modules
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and creates these nodes to allow module on-demand loading
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- possibly apply permissions to all ststic nodes from udev
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rules which are annotated to match a static node
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The default mode for a device node is 0600 now to match the kernel
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created devtmpfs defaults. If GROUP= is specified and no MODE= is
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given the default will be 0660.
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udev 154
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========
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Bugfixes.
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Udev now gradually starts to pass control over the primary device nodes
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and their names to the kernel, and will in the end only manage the
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permissions of the node, and possibly create additional symlinks.
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As a first step NAME="" will be ignored, and NAME= setings with names
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other than the kernel provided name will result in a logged warning.
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Kernels that don't provide device names, or devtmpfs is not used, will
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still work as they did before, but it is strongly recommended to use
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only the same names for the primary device node as the recent kernel
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provides for all devices.
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udev 153
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========
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Fix broken firmware loader search path.
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udev 152
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========
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Bugfixes.
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"udevadm trigger" defaults to "change" events now instead of "add"
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events. The "udev boot script" might need to add "--action=add" to
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the trigger command if not already there, in case the initial coldplug
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events are expected as "add" events.
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The option "all_partitons" was removed from udev. This should not be
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needed for usual hardware. Udev can not safely make assumptions
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about non-existing partition major/minor numbers, and therefore no
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longer provide this unreliable and unsafe option.
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The option "ignore_remove" was removed from udev. With devtmpfs
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udev passed control over device nodes to the kernel. This option
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should not be needed, or can not work as advertised. Neither
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udev nor the kernel will remove device nodes which are copied from
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the /lib/udev/devices/ directory.
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All "add|change" matches are replaced by "!remove" in the rules and
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in the udev logic. All types of events will update possible symlinks
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and permissions, only "remove" is handled special now.
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The modem modeswitch extra was removed and the external usb_modeswitch
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program should be used instead.
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New and fixed keymaps.
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udev 151
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========
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Bugfixes.
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udev 150
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========
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Bugfixes.
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Kernels with SYSFS_DEPRECATED=y are not supported since a while. Many users
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depend on the current sysfs layout and the information not available in the
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deprecated layout. All remaining support for the deprecated sysfs layout is
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removed now.
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udev 149
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========
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Fix for a possible endless loop in the new input_id program.
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udev 148
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========
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Bugfixes.
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The option "ignore_device" does no longer exist. There is no way to
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ignore an event, as libudev events can not be suppressed by rules.
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It only prevented RUN keys from being executed, which results in an
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inconsistent behavior in current setups.
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BUS=, SYSFS{}=, ID= are long deprecated and should be SUBSYSTEM(S)=,
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ATTR(S){}=, KERNEL(S)=. It will cause a warning once for every rule
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file from now on.
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The support for the deprecated IDE devices has been removed from the
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default set of rules. Distros who still care about non-libata drivers
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need to add the rules to the compat rules file.
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The ID_CLASS property on input devices has been replaced by the more accurate
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set of flags ID_INPUT_{KEYBOARD,KEY,MOUSE,TOUCHPAD,TABLET,JOYSTICK}. These are
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determined by the new "input_id" prober now. Some devices, such as touchpads,
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can have several classes. So if you previously had custom udev rules which e. g.
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checked for ENV{ID_CLASS}=="kbd", you need to replace this with
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ENV{ID_INPUT_KEYBOARD}=="?*".
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udev 147
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========
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Bugfixes.
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To support DEVPATH strings larger than the maximum file name length, the
|
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private udev database format has changed. If some software still reads the
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private files in /dev/.udev/, which it shouldn't, now it's time to fix it.
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Please do not port anything to the new format again, everything in /dev/.udev
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is and always was private to udev, and may and will change any time without
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prior notice.
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Multiple devices claiming the same names in /dev are limited to symlinks
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only now. Mixing identical symlink names and node names is not supported.
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This reduces the amount of data in the database significantly.
|
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NAME="%k" causes a warning now. It's is and always was completely superfluous.
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It will break kernel supplied DEVNAMEs and therefore it needs to be removed
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from all rules.
|
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Most NAME= instructions got removed. Kernel 2.6.31 supplies the needed names
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if they are not the default. To support older kernels, the NAME= rules need to
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be added to the compat rules file.
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|
|
Symlinks to udevadm with the old command names are no longer resolved to
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the udevadm commands.
|
|
|
|
The udev-acl tool got adopted to changes in ConsoleKit. Version 0.4.1 is
|
|
required now.
|
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|
The option "last_rule" does no longer exist. Its use breaks too many
|
|
things which expect to be run from independent later rules, and is an idication
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|
that something needs to be fixed properly instead.
|
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|
|
The gudev API is no longer marked as experimental,
|
|
G_UDEV_API_IS_SUBJECT_TO_CHANGE is no longer needed. The gudev introspection
|
|
is enabled by default now. Various projects already depend on introspection
|
|
information to bind dynamic languages to the gudev interfaces.
|
|
|
|
udev 146
|
|
========
|
|
Bugfixes.
|
|
|
|
The udevadm trigger "--retry-failed" option, which is replaced since quite
|
|
a while by "--type=failed" is removed.
|
|
|
|
The failed tracking was not working at all for a few releases. The RUN
|
|
option "ignore_error" is replaced by a "fail_event_on_error" option, and the
|
|
default is not to track any failing RUN executions.
|
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|
|
New keymaps, new modem, hid2hci updated.
|
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|
|
udev 145
|
|
========
|
|
Fix possible crash in udevd when worker processes are busy, rules are
|
|
changed at the same time, and workers get killed to reload the rules.
|
|
|
|
udev 144
|
|
========
|
|
Bugfixes.
|
|
|
|
Properties set with ENV{.FOO}="bar" are marked private by starting the
|
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name with a '.'. They will not be stored in the database, and not be
|
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exported with the event.
|
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|
Firmware files are looked up in:
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/lib/firmware/updates/$(uname -r)
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/lib/firmware/updates
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/lib/firmware/$(uname -r)
|
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/lib/firmware"
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now.
|
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ATA devices switched the property from ID_BUS=scsi to ID_BUS=ata.
|
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ata_id, instead of scsi_id, is the default tool now for ATA devices.
|
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|
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udev 143
|
|
========
|
|
Bugfixes.
|
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|
|
The configure options have changed because another library needs to be
|
|
installed in a different location. Instead of exec_prefix and udev_prefix,
|
|
libdir, rootlibdir and libexecdir are used. The Details are explained in
|
|
the README file.
|
|
|
|
Event processes now get re-used after they handled an event. This reduces
|
|
the number of forks and the pressure on the CPU significantly, because
|
|
cloned event processes no longer cause page faults in the main daemon.
|
|
After the events have settled, a few worker processes stay around for
|
|
future events, all others get cleaned up.
|
|
|
|
To be able to use signalfd(), udev depends on kernel version 2.6.25 now.
|
|
Also inotify support is mandatory now to run udev.
|
|
|
|
The format of the queue exported by the udev damon has changed. There is
|
|
no longer a /dev/.udev/queue/ directory. The current event queue can be
|
|
accessed with udevadm settle and libudedv.
|
|
|
|
Libudev does not have the unstable API header anymore. From now on,
|
|
incompatible changes will be handled by bumping the library major version.
|
|
|
|
To build udev from the git tree gtk-doc is needed now. The tarballs will
|
|
build without it and contain the pre-built documentation. An online copy
|
|
is available here:
|
|
http://www.kernel.org/pub/linux/utils/kernel/hotplug/libudev/
|
|
|
|
The tools from the udev-extras repository have been merged into the main
|
|
udev repository. Some of the extras have larger external dependencies, and
|
|
they can be disabled with the configure switch --disable-extras.
|
|
|
|
udev 142
|
|
========
|
|
Bugfixes.
|
|
|
|
The program vol_id and the library libvolume_id are removed from the
|
|
repository. Libvolume_id is merged with libblkid from the util-linux-ng
|
|
package. Persistent disk links for label and uuid depend on the
|
|
util-linux-ng version (2.15) of blkid now. Older versions of blkid
|
|
can not be used with udev.
|
|
|
|
Libudev allows to subscribe to udev events. To prevent unwanted messages
|
|
to be delivered, and waking up the subscribing process, a filter can be
|
|
installed, to drop messages inside a kernel socket filter. The filters
|
|
match on the <subsytem>:<devtype> properties of the device.
|
|
This is part of the ongoing effort to replace HAL, and switch current
|
|
users over to directly use libudev.
|
|
Libudev is still marked as experimental, and its interface might
|
|
eventually change if needed, but no major changes of the currently exported
|
|
interface are expected anymore, and a first stable release should happen
|
|
soon.
|
|
|
|
A too old kernel (2.6.21) or a kernel with CONFIG_SYSFS_DEPRECATED
|
|
is not supported since while and udevd will log an error message at
|
|
startup. It should still be able to boot-up, but advanced rules and system
|
|
services which depend on the information not available in the old sysfs
|
|
format will fail to work correctly.
|
|
|
|
DVB device naming is supplied by the kernel now. In case older kernels
|
|
need to be supported, the old shell script should be added to a compat
|
|
rules file.
|
|
|
|
udev 141
|
|
========
|
|
Bugfixes.
|
|
|
|
The processed udev events get send back to the netlink socket. Libudev
|
|
provides access to these events. This is work-in-progress, to replace
|
|
the DeviceKit daemon functionality directly with libudev. There are
|
|
upcoming kernel changes to allow non-root users to subcribe to these
|
|
events.
|
|
|
|
udev 140
|
|
========
|
|
Bugfixes.
|
|
|
|
"udevadm settle" now optionally accepts a range of events to wait for,
|
|
instead of waiting for "all" events.
|
|
|
|
udev 139
|
|
========
|
|
Bugfixes.
|
|
|
|
The installed watch for block device metadata changes is now removed
|
|
during event hadling, because some (broken) tools may be called from udev
|
|
rules and (wrongly) open the device with write access. After the finished
|
|
event handling the watch is restored.
|
|
|
|
udev 138
|
|
========
|
|
Bugfixes.
|
|
|
|
Device nodes can be watched for changes with inotify with OPTIONS="watch".
|
|
If closed after being opened for writing, a "change" uevent will occur.
|
|
/dev/disk/by-{label,uuid}/* symlinks will be automatically updated.
|
|
|
|
udev 137
|
|
========
|
|
Bugfixes.
|
|
|
|
The udevadm test command has no longer a --force option, nodes and symlinks
|
|
are always updated with a test run now.
|
|
|
|
The udevd daemon can be started with --resolve-names=never to avoid all user
|
|
and group lookups (e.g. in cut-down systems) or --resolve-names=late to
|
|
lookup user and groups every time events are handled.
|
|
|
|
udev 136
|
|
========
|
|
Bugfixes.
|
|
|
|
We are currently merging the Ubuntu rules in the udev default rules,
|
|
and get one step closer to provide a common Linux /dev setup, regarding
|
|
device names, symlinks, and default device permissions. On udev startup,
|
|
we now expect the following groups to be resolvable to their ids with
|
|
glibc's getgrnam():
|
|
disk, cdrom, floppy, tape, audio, video, lp, tty, dialout, kmem.
|
|
LDAP setups need to make sure, that these groups are always resolvable at
|
|
bootup, with only the rootfs mounted, and without network access available.
|
|
|
|
Some systems may need to add some new, currently not used groups, or need
|
|
to add some users to new groups, but the cost of this change is minimal,
|
|
compared to the pain the current, rather random, differences between the
|
|
various distributions cause for upstream projects and third-party vendors.
|
|
|
|
In general, "normal" users who log into a machine should never be a member
|
|
of any such group, but the device-access should be managed by dynamic ACLs,
|
|
which get added and removed for the specific users on login/logout and
|
|
session activity/inactivity. These groups are only provided for custom setups,
|
|
and mainly system services, to allow proper privilege separation.
|
|
A video-streaming daemon uid would be a member of "audio" and "video", to get
|
|
access to the sound and video devices, but no "normal" user should ever belong
|
|
to the "audio" group, because he could listen to the built-in microphone with
|
|
any ssh-session established from the other side of the world.
|
|
|
|
/dev/serial/by-{id,path}/ now contains links for ttyUSB devices,
|
|
which do not depend on the kernel device name. As usual, unique
|
|
devices - only a single one per product connected, or a real
|
|
USB serial number in the device - are always found with the same
|
|
name in the by-id/ directory.
|
|
Completely identical devices may overwrite their names in by-id/
|
|
and can only be found reliably in the by-path/ directory. Devices
|
|
specified by by-path/ must not change their connection, like the
|
|
USB port number they are plugged in, to keep their name.
|
|
|
|
To support some advanced features, Linux 2.6.22 is the oldest supported
|
|
version now. The kernel config with enabled SYSFS_DEPRECATED is no longer
|
|
supported. Older kernels should still work, and devices nodes should be
|
|
reliably created, but some rules and libudev will not work correctly because
|
|
the old kernels do not provide the expected information or interfaces.
|
|
|
|
udev 135
|
|
========
|
|
Bugfixes.
|
|
|
|
Fix for a possible segfault while swapping network interface names in udev
|
|
versions 131-134.
|
|
|
|
udev 134
|
|
========
|
|
Bugfixes.
|
|
|
|
The group "video" is part of the default rules now.
|
|
|
|
udev 133
|
|
========
|
|
Bugfix for kernels using SYSFS_DEPRECATED* option and finding parent
|
|
block devices in some cases. No common distro uses this option anymore,
|
|
and we do not get enough testing for this and recent udev versions. If
|
|
this option is not needed to run some old distro with a new kernel,
|
|
it should be disabled in the kernel config.
|
|
|
|
Bugfix for the $links substitution variable, which may crash if no links
|
|
are created. This should not happen in usual setups because we always
|
|
create /dev/{block,char}/ links.
|
|
|
|
The strings of the parsed rules, which are kept in memory, no longer
|
|
contain duplicate entries, or duplicate tails of strings. This, and the
|
|
new rules parsing/matching code reduces the total in-memory size of
|
|
a huge distro rule sets to 0.08 MB, compared to the 1.2MB of udev
|
|
version 130.
|
|
|
|
The export of DEVTYPE=disk/partition got removed from the default
|
|
rules. This value is available from the kernel. The pnp shell script
|
|
modprobe hack is removed from the default rules. ACPI devices have _proper_
|
|
modalias support and take care of the same functionality.
|
|
Installations which support old kernels, but install current default
|
|
udev rules may want to add that to the compat rules file.
|
|
|
|
Libvolume_id now always probes for all known filesystems, and does not
|
|
stop at the first match. Some filesystems are marked as "exclusive probe",
|
|
and if any other filesytem type matches at the same time, libvolume_id
|
|
will, by default, not return any probing result. This is intended to prevent
|
|
mis-detection with conflicting left-over signatures found from earlier
|
|
file system formats. That way, we no longer depend on the probe-order
|
|
in case of multiple competing signatures. In some setups the kernel allows
|
|
to mount a volume with just the old filesystem signature still in place.
|
|
This may damage the new filesystem and cause data-loss, just by mounting
|
|
it. Because volume_id can not decide which one the correct signature is,
|
|
the wrong signatures need to be removed manually from the volume, or the
|
|
volume needs to be reformatted, to enable filesystem detection and possible
|
|
auto-mounting.
|
|
|
|
udev 132
|
|
========
|
|
Fix segfault if compiled without optimization and dbg() does not get
|
|
compiled out and uses variables which are not available.
|
|
|
|
udev 131
|
|
========
|
|
Bugfixes. (And maybe new bugs. :))
|
|
|
|
The rule matching engine got converted from a rule list to a token
|
|
array which reduced the in-memory rules representation of a full
|
|
featured distros with thousends of udev rules from 1.2MB to 0.12 MB.
|
|
Limits like 5 ENV and ATTR matches, and one single instance for most
|
|
other keys per rule are gone.
|
|
|
|
The NAME assignment is no longer special cased. If later rules assign
|
|
a NAME value again, the former value will be overwritten. As usual
|
|
for most other keys, the NAME value can be protected by doing a final
|
|
assignment with NAME:="<value>".
|
|
|
|
All udev code now uses libudev, which is also exported. The library
|
|
is still under development, marked as experimental, and its interface
|
|
may change as long as the DeviceKit integration is not finished.
|
|
|
|
Many thanks to Alan Jenkins for his continuous help, and finding and
|
|
optimizing some of the computing expensive parts.
|
|
|
|
udev 130
|
|
========
|
|
Bugfixes.
|
|
|
|
Kernel devices and device nodes are connected now by reverse indizes in
|
|
/sys and /dev. A device number retrieved by a stat() or similar, the
|
|
kernel device directory can be found by looking up:
|
|
/sys/dev/{block,char}/<maj>:<min>
|
|
and the device node of the same device by looking up:
|
|
/dev/{block,char}/<maj>:<min>
|
|
|
|
udev 129
|
|
========
|
|
Fix recently introduced bug, which caused a compilation without large
|
|
file support, where vol_id does not recognize raid signatures at the end
|
|
of a volume.
|
|
|
|
Firewire disks now create both, by-id/scsi-* and by-id/ieee-* links.
|
|
Seems some kernel versions prevent the creation of the ieee-* links,
|
|
so people used the scsi-* link which disappeared now.
|
|
|
|
More libudev work. Almost all udevadm functionality comes from libudev
|
|
now.
|
|
|
|
udevadm trigger has a new option --type, which allows to trigger events
|
|
for "devices", for "subsystems", or "failed" devices. The old option
|
|
--retry-failed" still works, but is no longer mentioned in the man page.
|
|
|
|
udev 128
|
|
========
|
|
Bugfixes.
|
|
|
|
The udevadm info --device-id-of-file= output has changed to use
|
|
the obvious format. Possible current users should use the --export
|
|
option which is not affected.
|
|
|
|
The old udev commands symlinks to udevadm are not installed, if
|
|
these symlinks are used, a warning is printed.
|
|
|
|
udev 127
|
|
========
|
|
Bugfixes.
|
|
|
|
Optical drive's media is no longer probed for raid signatures,
|
|
reading the end of the device causes some devices to malfunction.
|
|
Also the offset of the last session found is used now to probe
|
|
for the filesystem.
|
|
|
|
The volume_id library got a major version number update to 1,
|
|
some deprecated functions are removed.
|
|
|
|
A shared library "libudev" gets installed now to provide access
|
|
to udev device information. DeviceKit, the successor of HAL, will
|
|
need this library to access the udev database and search sysfs for
|
|
devices.
|
|
The library is currently in an experimental state, also the API is
|
|
expected to change, as long as the DeviceKit integration is not
|
|
finished.
|
|
|
|
udev 126
|
|
========
|
|
We use ./configure now. See INSTALL for details. Current
|
|
options are:
|
|
--prefix=
|
|
"/usr" - prefix for man pages, include files
|
|
--exec-prefix=
|
|
"" - the root filesystem, prefix for libs and binaries
|
|
--sysconfdir=
|
|
"/etc"
|
|
--with-libdir-name=
|
|
"lib" - directory name for libraries, not a path name
|
|
multilib 64bit systems may use "lib64" instead of "lib"
|
|
--enable-debug
|
|
compile-in verbose debug messages
|
|
--disable-logging
|
|
disable all logging and compile-out all log strings
|
|
--with-selinux
|
|
link against SELInux libraries, to set the expected context
|
|
for created files
|
|
|
|
In the default rules, the group "disk" gets permissions 0660 instead
|
|
of 0640. One small step closer to unify distro rules. Some day, all
|
|
distros hopefully end up with the same set of rules.
|
|
|
|
No symlinks to udevadm are installed anymore, if they are still needed,
|
|
they should be provided by the package.
|
|
|
|
udev 125
|
|
========
|
|
Bugfixes.
|
|
|
|
Default udev rules, which are not supposed to be edited by the user, should
|
|
be placed in /lib/udev/rules.d/ now, to make it clear that they are private to
|
|
the udev package and will be replaced with an update. Udev will pick up rule
|
|
files from:
|
|
/lib/udev/rules.d/ - default installed rules
|
|
/etc/udev/rules.d/ - user rules + on-the-fly generated rules
|
|
/dev/.udev/rules.d/ - temporary non-persistent rules created after bootup
|
|
It does not matter in which directory a rule file lives, all files are sorted
|
|
in lexical order.
|
|
|
|
To help creating /dev/root, we have now:
|
|
$ udevadm info --export --export-prefix="ROOT_" --device-id-of-file=/
|
|
ROOT_MAJOR=8
|
|
ROOT_MINOR=5
|
|
In case the current --device-id-of-file is already used, please switch to
|
|
the --export format version, it saves the output parsing and the old
|
|
format will be changed to use ':' as a separator, like the format in the
|
|
sysfs 'dev' file.
|
|
|
|
udev 124
|
|
========
|
|
Fix cdrom_id to properly recognize blank media.
|
|
|
|
udev 123
|
|
========
|
|
Bugfixes.
|
|
|
|
Tape drive id-data is queried from /dev/bsg/* instead of the tape
|
|
nodes. This avoids rewinding tapes on open().
|
|
|
|
udev 122
|
|
========
|
|
Bugfixes.
|
|
|
|
The symlinks udevcontrol and udevtrigger are no longer installed by
|
|
the Makefile.
|
|
|
|
The scsi_id program does not depend on sysfs anymore. It can speak
|
|
SGv4 now, so /dev/bsg/* device nodes can be used, to query SCSI device
|
|
data, which should solve some old problems with tape devices, where
|
|
we better do not open all tape device nodes to identify the device.
|
|
|
|
udev 121
|
|
========
|
|
Many bugfixes.
|
|
|
|
The cdrom_id program is replaced by an advanced version, which can
|
|
detect most common device types, and also properties of the inserted
|
|
media. This is part of moving some basic functionality from HAL into
|
|
udev (and the kernel).
|
|
|
|
udev 120
|
|
========
|
|
Bugfixes.
|
|
|
|
The last WAIT_FOR_SYSFS rule is removed from the default rules.
|
|
|
|
The symlinks to udevadm for the debugging tools: udevmonitor and
|
|
udevtest are no longer created.
|
|
|
|
The symlinks to the udevadm man page for the old tool names are
|
|
no longer created.
|
|
|
|
Abstract namespace sockets paths in RUN+="socket:@<path>" rules,
|
|
should be prefixed with '@' to indicate that the path is not a
|
|
real file.
|
|
|
|
udev 119
|
|
========
|
|
Bugfixes.
|
|
|
|
udev 118
|
|
========
|
|
Bugfixes.
|
|
|
|
Udevstart is removed from the tree, it did not get installed for
|
|
a long time now, and is long replaced by trigger and settle.
|
|
|
|
udev 117
|
|
========
|
|
Bugfixes.
|
|
|
|
All udev tools are merged into a single binary called udevadm.
|
|
The old names of the tools are built-in commands in udevadm now.
|
|
Symlinks to udevadm, with the names of the old tools, provide
|
|
the same functionality as the standalone tools. There is also
|
|
only a single udevadm.8 man page left for all tools.
|
|
|
|
Tools like mkinitramfs should be checked, if they need to include
|
|
udevadm in the list of files.
|
|
|
|
udev 116
|
|
========
|
|
Bugfixes.
|
|
|
|
udev 115
|
|
========
|
|
Bugfixes.
|
|
|
|
The etc/udev/rules.d/ directory now contains a default set of basic
|
|
udev rules. This initial version is the result of a rules file merge
|
|
of Fedora and openSUSE. For these both distros only a few specific
|
|
rules are left in their own file, named after the distro. Rules which
|
|
are optionally installed, because they are only valid for a specific
|
|
architecture, or rules for subsystems which are not always used are
|
|
in etc/udev/packages/.
|
|
|
|
udev 114
|
|
========
|
|
Bugfixes.
|
|
|
|
Dynamic rules can be created in /dev/.udev/rules.d/ to trigger
|
|
actions by dynamically created rules.
|
|
|
|
SYMLINK=="<value>" matches agains the entries in the list of
|
|
currently defined symlinks. The links are not created in the
|
|
filesystem at that point in time, but the values can be matched.
|
|
|
|
RUN{ignore_error}+="<program>" will ignore any exit code from the
|
|
program and not record as a failed event.
|
|
|
|
udev 113
|
|
========
|
|
Bugfixes.
|
|
|
|
Final merge of patches/features from the Ubuntu package.
|
|
|
|
udev 112
|
|
========
|
|
Bugfixes.
|
|
|
|
Control characters in filesystem label strings are no longer silenty
|
|
removed, but hex-encoded, to be able to uniquely identify the device
|
|
by its symlink in /dev/disk/by-label/.
|
|
If libvolume_id is used by mount(8), LABEL= will work as expected,
|
|
if slashes or other characters are used in the label string.
|
|
|
|
To test the existence of a file, TEST=="<file>" and TEST!="<file>"
|
|
can be specified now. The TEST key accepts an optional mode mask
|
|
TEST{0100}=="<is executable file>".
|
|
|
|
Scsi_id now supports a mode without expecting scsi-specific sysfs
|
|
entries to allow the extraction of cciss-device persistent properties.
|
|
|
|
udev 111
|
|
========
|
|
Bugfixes.
|
|
|
|
In the future, we may see uuid's which are just simple character
|
|
strings (see the DDF Raid Specification). For that reason vol_id now
|
|
exports ID_FS_UUID_SAFE, just like ID_FS_LABEL_SAFE. For things like
|
|
the creation of symlinks, the *_SAFE values ensure, that no control
|
|
or whitespace characters are used in the filename.
|
|
|
|
Possible users of libvolume_id, please use the volume_id_get_* functions.
|
|
The public struct will go away in a future release of the library.
|
|
|
|
udev 110
|
|
========
|
|
Bugfixes.
|
|
|
|
Removal of useless extras/eventrecorder.sh.
|
|
|
|
udev 109
|
|
========
|
|
Bugfixes.
|
|
|
|
udev 108
|
|
========
|
|
Bugfixes.
|
|
|
|
The directory multiplexer for dev.d/ and hotplug.d are finally removed
|
|
from the udev package.
|
|
|
|
udev 107
|
|
========
|
|
Bugfixes.
|
|
|
|
Symlinks can have priorities now, the priority is assigned to the device
|
|
and specified with OPTIONS="link_priority=100". Devices with higher
|
|
priorities overwrite the symlinks of devices with lower priorities.
|
|
If the device that currently owns the link, goes away, the symlink
|
|
will be removed, and recreated, pointing to the next device with the
|
|
highest actual priority. This should make /dev/disk/by-{label,uuid,id}
|
|
more reliable, if multiple devices contain the same metadata and overwrite
|
|
these symlinks.
|
|
|
|
The dasd_id program is removed from the udev tree, and dasdinfo, with the
|
|
needed rules, are part of the s390-tools now.
|
|
|
|
Please add KERNEL=="[0-9]*:[0-9]*" to the scsi wait-for-sysfs rule,
|
|
we may get the scsi sysfs mess fixed some day, and this will only catch
|
|
the devices we are looking for.
|
|
|
|
USB serial numbers for storage devices have the target:lun now appended,
|
|
to make it possibble to distinguish broken multi-lun devices with all
|
|
the same SCSI identifiers.
|
|
|
|
Note: The extra "run_directory" which searches and executes stuff in
|
|
/etc/hotplug.d/ and /etc/dev.d/ is long deprecated, and will be removed
|
|
with the next release. Make sure, that you don't use it anymore, or
|
|
provides your own implementation of that inefficient stuff.
|
|
We are tired of reports about a "slow udev", because these directories
|
|
contain stuff, that runs with _every_ event, instead of using rules,
|
|
that run programs only for the matching events.
|
|
|
|
udev 106
|
|
========
|
|
Bugfixes.
|
|
|
|
udev 105
|
|
========
|
|
Bugfixes.
|
|
|
|
DRIVER== will match only for devices that actually have a real
|
|
driver. DRIVERS== must be used, if parent devices should be
|
|
included in the match.
|
|
|
|
Libvolume_id's "linux_raid" detection needed another fix.
|
|
|
|
udev 104
|
|
========
|
|
Bugfixes.
|
|
|
|
udev 103
|
|
========
|
|
Add additional check to volume_id detection of via_raid, cause
|
|
some company decided to put a matching pattern all over the empty
|
|
storage area of their music players.
|
|
|
|
udev 102
|
|
========
|
|
Fix path_id for SAS devices.
|
|
|
|
udev 101
|
|
========
|
|
The udev daemon can be started with --debug-trace now, which will
|
|
execute all events serialized to get a chance to catch a possible
|
|
action that crashes the box.
|
|
|
|
A warning is logged, if PHYSDEV* keys, the "device" link, or a parent
|
|
device attribute like $attr{../file} is used, only WAIT_FOR_SYSFS rules
|
|
are excluded from the warning. Referencing parent attributes directly
|
|
may break when something in the kernel driver model changes. Udev will
|
|
just find the attribute by walking up the parent chain.
|
|
|
|
Udevtrigger now sorts the list of devices depending on the device
|
|
dependency, so a "usb" device is triggered after the parent "pci"
|
|
device.
|
|
|
|
udev 100
|
|
========
|
|
Revert persistent-storage ata-serial '_' '-' replacement.
|
|
|
|
udev 099
|
|
========
|
|
Bugfixes.
|
|
|
|
Udevtrigger can now filter the list of devices to be triggered. Matches
|
|
for subsystems or sysfs attributes can be specified.
|
|
|
|
The entries in /dev/.udev/queue and /dev/.udev/failed have changed to
|
|
zero-sized files to avoid pointing to /sys and confuse broken tools which
|
|
scan the /dev directory. To retry failed events, udevtrigger --retry-failed
|
|
should be used now.
|
|
|
|
The rules and scripts to create udev rules for persistent network
|
|
devices and optical drives are in the extras/rules_generator directory
|
|
now. If you use something similar, please consider replacing your own
|
|
version with this, to share the support effort. The rule_generator
|
|
installs its own rules into /etc/udev/rules.d.
|
|
|
|
The cdrom_id tool installs its own rule now in /etc/udev/rules.d, cause
|
|
the rule_generator depends on cdrom_id to be called in an earlier rule.
|
|
|
|
udev 098
|
|
========
|
|
Bugfixes.
|
|
|
|
Renaming of some key names (the old names still work):
|
|
BUS -> SUBSYSTEMS, ID -> KERNELS, SYSFS -> ATTRS, DRIVER -> DRIVERS.
|
|
(The behavior of the key DRIVER will change soon in one of the next
|
|
releases, to match only the event device, please switch to DRIVERS
|
|
instead. If DRIVER is used, it will behave like DRIVERS, but an error
|
|
is logged.
|
|
With the new key names, we have a more consistent and simpler scheme.
|
|
We can match the properties of the event device only, with: KERNEL,
|
|
SUBSYSTEM, ATTR, DRIVER. Or include all the parent devices in the match,
|
|
with: KERNELS, SUBSYSTEMS, ATTRS, DRIVERS. ID, BUS, SYSFS, DRIVER are no
|
|
longer mentioned in the man page and should be switched in the rule
|
|
files.
|
|
|
|
ATTR{file}="value" can be used now, to write to a sysfs file of the
|
|
event device. Instead of:
|
|
..., SYSFS{type}=="0|7|14", RUN+="/bin/sh -c 'echo 60 > /sys$$DEVPATH/timeout'"
|
|
we now can do:
|
|
..., ATTR{type}=="0|7|14", ATTR{timeout}="60"
|
|
|
|
All the PHYSDEV* keys are deprecated and will be removed from a
|
|
future kernel:
|
|
PHYDEVPATH - is the path of a parent device and should not be
|
|
needed at all.
|
|
PHYSDEVBUS - is just a SUBSYSTEM value of a parent, and can be
|
|
matched with SUBSYSTEMS==
|
|
PHYSDEVDRIVER - for bus devices it is available as ENV{DRIVER}.
|
|
Newer kernels will have DRIVER in the environment,
|
|
for older kernels udev puts in. Class device will
|
|
no longer carry this property of a parent and
|
|
DRIVERS== can be used to match such a parent value.
|
|
Note that ENV{DRIVER} is only available for a few bus devices, where
|
|
the driver is already bound at device event time. On coldplug, the
|
|
events for a lot devices are already bound to a driver, and they will have
|
|
that value set. But on hotplug, at the time the kernel creates the device,
|
|
it can't know what driver may claim the device after that, therefore
|
|
in most cases it will be empty.
|
|
|
|
Failed events should now be re-triggered with:
|
|
udevtrigger --retry-failed.
|
|
Please switch to this command, so we keep the details of the /dev/.udev/failed/
|
|
files private to the udev tools. We may need to switch the current symlink
|
|
target, cause some obviously broken tools try to scan all files in /dev
|
|
including /dev/.udev/, find the links to /sys and end up stat()'ing sysfs files
|
|
million times. This takes ages on slow boxes.
|
|
|
|
The udevinfo attribute walk (-a) now works with giving a device node
|
|
name (-n) instead of a devpath (-p). The query now always works, also when
|
|
no database file was created by udev.
|
|
|
|
The built-in /etc/passwd /etc/group parser is removed, we always depend on
|
|
getpwnam() and getgrnam() now. One of the next releases will depend on
|
|
fnmatch() and may use getopt_long().
|
|
|
|
udev 097
|
|
========
|
|
Bugfixes and small improvements.
|
|
|
|
udev 096
|
|
========
|
|
Fix path_id for recent kernels.
|
|
|
|
udev 095
|
|
========
|
|
%e is finally gone.
|
|
|
|
Added support for swapping network interface names, by temporarily
|
|
renaming the device and wait for the target name to become free.
|
|
|
|
udev 094
|
|
========
|
|
The built-in MODALIAS key and substitution is removed.
|
|
|
|
udev 093
|
|
========
|
|
The binary firmware helper is replaced by the usual simple
|
|
shell script. Udevsend is removed from the tree.
|
|
|
|
udev 092
|
|
========
|
|
Bugfix release.
|
|
|
|
udev 091
|
|
========
|
|
Some more keys require the correct use of '==' and '=' depending
|
|
on the kind of operation beeing an assignment or a match. Rules
|
|
with invalid operations are skipped and logged to syslog. Please
|
|
test with udevtest if the parsing of your rules throws errors and
|
|
fix possibly broken rules.
|
|
|
|
udev 090
|
|
========
|
|
Provide "udevsettle" to wait for all current udev events to finish.
|
|
It also watches the current kernel netlink queue by comparing the
|
|
even sequence number to make sure that there are no current pending
|
|
events that have not already arrived in the daemon.
|
|
|
|
udev 089
|
|
========
|
|
Fix rule to skip persistent rules for removable IDE devices, which
|
|
also skipped optical IDE drives.
|
|
|
|
All *_id program are installed in /lib/udev/ by default now.
|
|
|
|
No binary is stripped anymore as this should be done in the
|
|
packaging process and not at build time.
|
|
|
|
libvolume_id is provided as a shared library now and vol_id is
|
|
linked against it. Also one of the next HAL versions will require
|
|
this library, and the HAL build process will also require the
|
|
header file to be installed. The copy of the same code in HAL will
|
|
be removed to have only a single copy left on the system.
|
|
|
|
udev 088
|
|
========
|
|
Add persistent links for SCSI tapes. The rules file is renamed
|
|
to 60-persistent-storage.rules.
|
|
|
|
Create persistent path for usb devices. Can be used for all sorts
|
|
of devices that can't be distinguished by other properties like
|
|
multiple identical keyboards and mice connected to the same box.
|
|
|
|
Provide "udevtrigger" program to request events on coldplug. The
|
|
shell script is much too slow with thousends of devices.
|
|
|
|
udev 087
|
|
========
|
|
Fix persistent disk rules to exclude removable IDE drives.
|
|
|
|
Warn if %e, $modalias or MODALIAS is used.
|
|
|
|
udev 086
|
|
========
|
|
Fix queue export, which wasn't correct for subsequent add/remove
|
|
events for the same device.
|
|
|
|
udev 085
|
|
========
|
|
Fix cramfs detection on big endian.
|
|
|
|
Make WAIT_FOR_SYSFS usable in "normal" rules and silent if the whole
|
|
device goes away.
|
|
|
|
udev 084
|
|
========
|
|
If BUS== and SYSFS{}== have been used in the same rule, the sysfs
|
|
attributes were only checked at the parent device that matched the
|
|
by BUS requested subsystem. Fix it to also look at the device we
|
|
received the event for.
|
|
|
|
Build variable CROSS has changed to CROSS_COMPILE to match the kernel
|
|
build name.
|
|
|
|
udev 083
|
|
========
|
|
Fix a bug where NAME="" would prevent RUN from beeing executed.
|
|
|
|
RUN="/bin/program" does not longer automatically add the subsystem
|
|
as the first parameter. This is from the days of /sbin/hotplug
|
|
which is dead now and it's just confusing to need to add a space at
|
|
the end of the program name to prevent this.
|
|
If you use rules that need the subsystem as the first parameter,
|
|
like the old "udev_run_hotlugd" and "udev_run_devd", add the subsystem
|
|
to the key like RUN+="/bin/program $env{SUBSYSTEM}".
|
|
|
|
udev 082
|
|
========
|
|
The udev man page has moved to udev(7) as it does not describe a command
|
|
anymore. The programs udev, udevstart and udevsend are no longer installed
|
|
by default and must be copied manually, if they should be installed or
|
|
included in a package.
|
|
|
|
Fix a bug where "ignore_device" could run earlier collected RUN keys before
|
|
the ignore rule was applied.
|
|
|
|
More preparation for future sysfs changes. usb_id and scsi_id no longer
|
|
depend on a magic order of devices in the /devices chain. Specific devices
|
|
should be requested by their subsytem.
|
|
|
|
This will always find the scsi parent device without depending on a specific
|
|
path position:
|
|
dev = sysfs_device_get(devpath);
|
|
dev_usb = sysfs_device_get_parent_with_subsystem(dev, "scsi");
|
|
|
|
The "device" link in the current sysfs layout will be automatically
|
|
_resolved_ as a parent and in the new sysfs layout it will just _be_ the
|
|
parent in the devpath. If a device is requested by it's symlink, like all
|
|
class devices in the new sysfs layout will look like, it gets automatically
|
|
resolved and substituted with the real devpath and not the symlink path.
|
|
|
|
Note:
|
|
A similar logic must be applied to _all_ sysfs users, including
|
|
scripts, that search along parent devices in sysfs. The explicit use of
|
|
the "device" link must be avoided. With the future sysfs layout all
|
|
DEVPATH's will start with /devices/ and have a "subsystem" symlink poiting
|
|
back to the "class" or the "bus". The layout of the parent devices in
|
|
/devices is not necessarily expected to be stable across kernel releases and
|
|
searching for parents by their subsystem should make sysfs users tolerant
|
|
for changed parent chains.
|
|
|
|
udev 081
|
|
========
|
|
Prepare udev to work with the experimental kernel patch, that moves
|
|
/sys/class devices to /sys/devices and /sys/block to /sys/class/block.
|
|
|
|
Clarify BUS, ID, $id usage and fix $id behavior. This prepares for
|
|
moving the class devices to /sys/devices.
|
|
|
|
Thanks again to Marco for help finding a hopefully nice compromise
|
|
to make %b simpler and working again.
|
|
|
|
udev 080
|
|
========
|
|
Complete removal of libsysfs, replaced by simple helper functions
|
|
which are much simpler and a bit faster. The udev daemon operatesentirely
|
|
on event parameters and does not use sysfs for simple rules anymore.
|
|
Please report any new bugs/problems, that may be caused by this big
|
|
change. They will be fixed immediately.
|
|
|
|
The enumeration format character '%e' is deprecated and will be
|
|
removed sometimes from a future udev version. It never worked correctly
|
|
outside of udevstart, so we can't use it with the new parallel
|
|
coldplug. A simple enumeration is as useless as the devfs naming
|
|
scheme, just get rid of both if you still use it.
|
|
|
|
MODALIAS and $modalias is not needed and will be removed from one of
|
|
the next udev versions, replace it in all rules with ENV{MODALIAS} or
|
|
the sysfs "modalias" value.
|
|
|
|
Thanks a lot to Marco for all his help on finding and fixing bugs.
|
|
|
|
udev 079
|
|
========
|
|
Let scsi_id request libata drive serial numbers from page 0x80.
|
|
|
|
Renamed etc/udev/persistent.rules to persistent-disk.rules and
|
|
added /dev/disk/by-name/* for device mapper device names.
|
|
|
|
Removed %e from the man page. It never worked reliably outside
|
|
of udevstart and udevstart is no longer recommended to use.
|
|
|
|
udev 078
|
|
========
|
|
Symlinks are now exported to the event environment. Hopefully it's no
|
|
longer needed to run udevinfo from an event process, like it was
|
|
mentioned on the hotplug list:
|
|
UDEV [1134776873.702967] add@/block/sdb
|
|
...
|
|
DEVNAME=/dev/sdb
|
|
DEVLINKS=/dev/disk/by-id/usb-IBM_Memory_Key_0218B301030027E8 /dev/disk/by-path/usb-0218B301030027E8:0:0:0
|
|
|
|
udev 077
|
|
========
|
|
Fix a problem if udevsend is used as the hotplug handler and tries to use
|
|
syslog, which causes a "vc" event loop. 2.6.15 will make udevsend obsolete
|
|
and this kind of problems will hopefully go away soon.
|
|
|
|
udev 076
|
|
========
|
|
All built-in logic to work around bad sysfs timing is removed with this
|
|
version. The need to wait for sysfs files is almost fixed with a kernel
|
|
version that doesn't work with this udev version anyway. Until we fix
|
|
the timing of the "bus" link creation, the former integrated logic should
|
|
be emulated by a rule placed before all other rules:
|
|
ACTION=="add", DEVPATH=="/devices/*", ENV{PHYSDEVBUS}=="?*", WAIT_FOR_SYSFS="bus"
|
|
|
|
The option "udev_db" does no longer exist. All udev state will be in
|
|
/$udev_root/.udev/ now, there is no longer an option to set this
|
|
to anything else.
|
|
If the init script or something else used this value, just depend on
|
|
this hardcoded path. But remember _all_content_ of this directory is
|
|
still private to udev and can change at any time.
|
|
|
|
Default location for rule sripts and helper programs is now: /lib/udev/.
|
|
Everything that is not useful on the commandline should go into this
|
|
directory. Some of the helpers in the extras folder are installed there
|
|
now. The rules need to be changed, to find the helpers there.
|
|
|
|
Also /lib/udev/devices is recommended as a directory where packages or
|
|
the user can place real device nodes, which get copied over to /dev at
|
|
every boot. This should replace the various solutions with custom config
|
|
files.
|
|
|
|
Udevsend does no longer start the udev daemon. This must be done with
|
|
the init script that prepares /dev on tmpfs and creates the initial nodes,
|
|
before starting the daemon.
|
|
|
|
udev 075
|
|
========
|
|
Silent a too verbose error logging for the old hotplug.d/ dev.d/
|
|
emulation.
|
|
|
|
The copy of klibc is removed. A systemwide installed version of klibc
|
|
should be used to build a klibc udev now.
|
|
|
|
udev 074
|
|
========
|
|
NAME="" will not create any nodes, but execute RUN keys. To completely
|
|
ignore an event the OPTION "ignore_device" should be used.
|
|
|
|
After removal of the reorder queue, events with a TIMEOUT can be executed
|
|
without any queuing now.
|
|
|
|
udev 073
|
|
========
|
|
Fixed bug in udevd, if inotify is not available. We depend on netlink
|
|
uevents now, kernels without that event source will not work with that
|
|
version of udev anymore.
|
|
|
|
udev 072
|
|
========
|
|
The rule parsing happens now in the daemon once at startup, all udev
|
|
event processes inherit the already parsed rules from the daemon.
|
|
It is shipped with SUSE10.0 and reduces heavily the system load at
|
|
startup. The option to save precompiled rules and let the udev process
|
|
pick the them up is removed, as it's no longer needed.
|
|
|
|
Kernel 2.6.15 will have symlinks at /class/input pointing to the real
|
|
device. Libsysfs is changed to "translate" the requested link into the
|
|
real device path, as it would happen with the hotplug event. Otherwise
|
|
device removal and the udev database will not work.
|
|
|
|
Using 'make STRIPCMD=' will leave the binaries unstripped for debugging
|
|
and packaging.
|
|
|
|
A few improvements for vol_id, the filesytem probing code.
|
|
|
|
udev 071
|
|
========
|
|
Fix a stupid typo in extras/run_directory for "make install".
|
|
|
|
scsi_id creates the temporary devnode now in /dev for usage with a
|
|
non-writable /tmp directory.
|
|
|
|
The uevent kernel socket buffer can carry app. 50.000 events now,
|
|
let's see who can break this again. :)
|
|
|
|
The upcoming kernel will have a new input driver core integration.
|
|
Some class devices are now symlinks to the real device. libsysfs
|
|
needs a fix for this to work correctly. Udevstart of older udev
|
|
versions will _not_ create these devices!
|
|
|
|
udev 070
|
|
========
|
|
Fix a 'install' target in the Makefile, that prevents EXTRAS from
|
|
beeing installed.
|
|
|
|
udev 069
|
|
========
|
|
A bunch of mostly trivial bugfixes. From now on no node name or
|
|
symlink name can contain any character than plain whitelisted ascii
|
|
characters or validated utf8 byte-streams. This is needed for the
|
|
/dev/disk/by-label/* links, because we import untrusted data and
|
|
export it to the filesystem.
|
|
|
|
udev 068
|
|
========
|
|
More bugfixes. If udevd was started from the kernel, we don't
|
|
have stdin/stdout/stderr, which broke the forked tools in some
|
|
situations.
|
|
|
|
udev 067
|
|
========
|
|
Bugfix. udevstart event ordering was broken for a long time.
|
|
The new run_program() uncovered it, because /dev/null was not
|
|
available while we try to run external programs.
|
|
Now udevstart should create it before we run anything.
|
|
|
|
udev 066
|
|
========
|
|
Minor bugfixes and some distro rules updates. If you don't have the
|
|
persistent disk rules in /dev/disk/by-*/* on your distro, just
|
|
grab it from here. :)
|
|
|
|
udev 065
|
|
========
|
|
We can use socket communication now to pass events from udev to
|
|
other programs:
|
|
RUN+="socket:/org/freedesktop/hal/udev_event"
|
|
will pass the whole udev event to the HAL daemon without the need
|
|
for a forked helper. (See ChangeLog for udevmonitor, as an example)
|
|
|
|
udev 064
|
|
========
|
|
Mostly bugfixes and see ChangeLog.
|
|
|
|
The test for the existence of an environment value should be
|
|
switched from:
|
|
ENV{KEY}=="*" to ENV{KEY}=="?*"
|
|
because "*" will not fail anymore, if the key does not exist or
|
|
is empty.
|
|
|
|
udev 063
|
|
========
|
|
Bugfixes and a few tweaks described in the ChangeLog.
|
|
|
|
udev 062
|
|
========
|
|
Mostly a Bugfix release.
|
|
|
|
Added WAIT_FOR_SYSFS="<attribute>" to be able to fight against the sysfs
|
|
timing with custom rules.
|
|
|
|
udev 061
|
|
========
|
|
We changed the internal rule storage format. Our large rule files took
|
|
2 MB of RAM, with the change we are down to 99kB.
|
|
|
|
If the device-node has been created with default name and no symlink or
|
|
options are to remenber, it is not longer stored in the udevdb. HAL will
|
|
need to be updated to work correctly with that change.
|
|
|
|
To overrride optimization flags, OPTFLAGS may be used now.
|
|
|
|
udev 060
|
|
========
|
|
Bugfix release.
|
|
|
|
udev 059
|
|
========
|
|
Major changes happened with this release. The goal is to take over the
|
|
complete kernel-event handling and provide a more efficient way to dispatch
|
|
kernel events. Replacing most of the current shell script logic and the
|
|
kernel forked helper with a netlink-daemon and a rule-based event handling.
|
|
|
|
o udevd listens to netlink events now. The first valid netlink event
|
|
will make udevd ignore any message from udevsend that contains a
|
|
SEQNUM, to avoid duplicate events. The forked events can be disabled
|
|
with:
|
|
echo "" > /proc/sys/kernel/hotplug
|
|
For full support, the broken input-subsytem needs to be fixed, not to
|
|
bypass the driver core.
|
|
|
|
o /etc/dev.d/ + /etc/hotplug.d/ directory multiplexing is completely
|
|
removed from udev itself and must be emulated by calling small
|
|
helper binaries provided in the extras folder:
|
|
make EXTRAS=extras/run_directory/
|
|
will build udev_run_devd and udev_run_hotplugd, which can be called
|
|
from a rule if needed:
|
|
RUN+="/sbin/udev_run_hotplugd"
|
|
The recommended way to handle this is to convert all the calls from
|
|
the directories to explicit udev rules and get completely rid of the
|
|
multiplexing. (To catch a ttyUSB event, you now no longer need to
|
|
fork and exit 300 tty script instances you are not interested in, it
|
|
is just one rule that matches exactly the device.)
|
|
|
|
o udev handles now _all_ events not just events for class and block
|
|
devices, this way it is possible to control the complete event
|
|
behavior with udev rules. Especially useful for rules like:
|
|
ACTION="add", DEVPATH="/devices/*", MODALIAS=="?*", RUN+="/sbin/modprobe $modalias"
|
|
|
|
o As used in the modalias rule, udev supports now textual
|
|
substitution placeholder along with the usual format chars. This
|
|
needs to be documented, for now it's only visible in udev_rules_parse.c.
|
|
|
|
o The rule keys support now more operations. This is documented in the
|
|
man page. It is possible to add values to list-keys like the SYMLINK
|
|
and RUN list with KEY+="value" and to clear the list by assigning KEY="".
|
|
Also "final"-assignments are supported by using KEY:="value", which will
|
|
prevent changing the key by any later rule.
|
|
|
|
o kernel 2.6.12 has the "detached_state" attribute removed from
|
|
sysfs, which was used to recognize sysfs population. We switched that
|
|
to wait for the "bus" link, which is only available in kernels after 2.6.11.
|
|
Running this udev version on older kernels may cause a short delay for
|
|
some events.
|
|
|
|
o To provide infrastructure for persistent device naming, the id programs:
|
|
scsi_id, vol_id (former udev_volume_id), and ata_id (new) are able now
|
|
to export the probed data in environment key format:
|
|
pim:~ # /sbin/ata_id --export /dev/hda
|
|
ID_MODEL=HTS726060M9AT00
|
|
ID_SERIAL=MRH401M4G6UM9B
|
|
ID_REVISION=MH4OA6BA
|
|
|
|
The following rules:
|
|
KERNEL="hd*[!0-9]", IMPORT="/sbin/ata_id --export $tempnode"
|
|
KERNEL="hd*[!0-9]", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/$env{ID_MODEL}_$env{ID_SERIAL}"
|
|
|
|
Will create:
|
|
kay@pim:~> tree /dev/disk
|
|
/dev/disk
|
|
|-- by-id
|
|
| |-- HTS726060M9AT00_MRH401M4G6UM9B -> ../../hda
|
|
| `-- IBM-Memory_Key -> ../../sda
|
|
|-- by-label
|
|
| |-- swap -> ../../hda1
|
|
| |-- date -> ../../sda1
|
|
| `-- home -> ../../hda3
|
|
`-- by-uuid
|
|
|-- 2E08712B0870F2E7 -> ../../hda3
|
|
|-- 9352cfef-7687-47bc-a2a3-34cf136f72e1 -> ../../hda1
|
|
|-- E845-7A89 -> ../../sda1
|
|
`-- b2a61681-3812-4f13-a4ff-920d70604299 -> ../../hda2
|
|
|
|
The IMPORT= operation will import these keys in the environment and make
|
|
it available for later PROGRAM= and RUN= executed programs. The keys are
|
|
also stored in the udevdb and can be queried from there with one of the
|
|
next udev versions.
|
|
|
|
o A few binaries are silently added to the repository, which can be used
|
|
to replay kernel events from initramfs instead of using coldplug. udevd
|
|
can be instructed now to queue-up events while the stored events from
|
|
initramfs are filled into the udevd-queue. This code is still under
|
|
development and there is no documentation now besides the code itself.
|
|
The additional binaries get compiled, but are not installed by default.
|
|
|
|
o There is also a temporary fix for a performance problem where too many
|
|
events happen in parallel and every event needs to parse the rules.
|
|
udev can now read precompiled rules stored on disk. This is likely to be
|
|
replaced by a more elegant solution in a future udev version.
|
|
|
|
udev 058
|
|
========
|
|
With kernel version 2.6.12, the sysfs file "detached_state" was removed.
|
|
Fix for libsysfs not to expect this file was added.
|
|
|
|
udev 057
|
|
========
|
|
All rules are applied now, but only the first matching rule with a NAME-key
|
|
will be applied. All later rules with NAME-key are completely ignored. This
|
|
way system supplied symlinks or permissions gets applied to user-defined
|
|
naming rules.
|
|
|
|
Note:
|
|
Please check your rules setup, if you may need to add OPTIONS="last_rule"
|
|
to some rules, to keep the old behavior.
|
|
|
|
The rules are read on "remove"-events too. That makes is possible to match
|
|
with keys that are available on remove (KERNEL, SUBSYSTEM, ID, ENV, ...) to
|
|
instruct udev to ignore an event (OPTIONS="ignore_device").
|
|
The new ACTION-key may be used to let a rule act only at a "remove"-event.
|
|
|
|
The new RUN-key supports rule-based execution of programs after device-node
|
|
handling. This is meant as a general replacement for the dev.d/-directories
|
|
to give fine grained control over the execution of programs.
|
|
|
|
The %s{}-sysfs format char replacement values are searched at any of the
|
|
devices in the device chain now, not only at the class-device.
|
|
|
|
We support log priority levels now. The value udev_log in udev.conf is used
|
|
to determine what is printed to syslog. This makes it possible to
|
|
run a version with compiled-in debug messages in a production environment
|
|
which is sometimes needed to find a bug.
|
|
It is still possible to supress the inclusion of _any_ syslog usage with
|
|
USE_LOG=false to create the smallest possible binaries if needed.
|
|
The configured udev_log value can be overridden with the environment variable
|
|
UDEV_LOG.
|
|
|
|
udev 056
|
|
========
|
|
Possible use of a system-wide klibc:
|
|
make USE_KLIBC=true KLCC=/usr/bin/klcc all
|
|
will link against an external klibc and our own version will be ignored.
|
|
|
|
udev 055
|
|
========
|
|
We support an unlimited count of symlinks now.
|
|
|
|
If USE_STATIC=true is passed to a glibc build, we link statically and use
|
|
a built-in userdb parser to resolve user and group names.
|
|
|
|
The PLACE= key is gone. It can be replaced by an ID= for a long time, because
|
|
we walk up the chain of physical devices to find a match.
|
|
|
|
The KEY="<value>" format supports '=', '==', '!=,' , '+=' now. This makes it
|
|
easy to skip certain attribute matches without composing rules with weird
|
|
character class negations like:
|
|
KERNEL="[!s][!c][!d]*"
|
|
this can now be replaced with:
|
|
KERNEL!="scd*"
|
|
The current simple '=' is still supported, and should work as it does today,
|
|
but existing rules should be converted if possible, to be better readable.
|
|
|
|
We have new ENV{}== key now, to match against a maximum of 5 environment
|
|
variables.
|
|
|
|
udevstart is its own binary again, because we don't need co carry this araound
|
|
with every forked event.
|