group.of.nepali.translators team mailing list archive

[Dan Streetman <dan.streetman@xxxxxxxxxxxxx>]

No fix needed in trusty; the drbd rules file is different in that older
version and will not be affected by the udev behavior change (the rules
file contains the space directly in its string value, not in a
substituted variable, so udev will process the space correctly and the
behavior change only affects whitespace inside substituted variables
inside SYMLINK assignment in rules files).

** Changed in: drbd-utils (Ubuntu Trusty)
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/1673255

Title:
  drbd udev rule with multiple symlinks fails

Status in drbd-utils package in Ubuntu:
  In Progress
Status in drbd-utils source package in Trusty:
  Invalid
Status in drbd-utils source package in Xenial:
  In Progress
Status in drbd-utils source package in Artful:
  In Progress
Status in drbd-utils source package in Bionic:
  In Progress
Status in drbd-utils source package in Cosmic:
  In Progress
Status in drbd-utils package in Debian:
  Unknown

Bug description:
  The drbd udev rule creates multiple symlinks with a single udev rule, by space-separating them inside an env var.  However, recent udev changes no longer allow doing that:
  https://github.com/systemd/systemd/issues/4833

  Now, recent versions of udev will, by default, replace any whitespace
  introduced into SYMLINK values by variable substitution, so the drbd
  udev rule that does this breaks:

  ENV{SYMLINK}!="", SYMLINK="$env{SYMLINK}", GOTO="have_symlink"

  when that SYMLINK env variable contains multiple symlinks, they are
  combined into a single symlink with an underscore joining them.
  Instead, since it's desired to leave all spaces in the env var in
  order to create multiple symlinks, the rule needs to use the
  "string_escape=none" option which prevents whitespace replacement:

  ENV{SYMLINK}!="", SYMLINK="$env{SYMLINK}",
  OPTIONS+="string_escape=none", GOTO="have_symlink"

  
  Related ubuntu bug that introduced the new udev default whitespace replacement behavior:
  https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1647485

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