Bug#1004392: systemd: Incorrect location of configuration files

[Anton Ivanov]

Package: systemd
Version: 247.3-6
Severity: serious
Justification: Policy 10.7

Dear Maintainer,

/usr/lib/tmpfiles.d/x11.conf should be a configuration file. Entries in it must be disabled in order to run containers with accelerated X11 and DRI access. 

As it is under lib, changes to it are overwritten on every systemd update breaking all containers which run X apps with direct access to local X-server.

1. There is no way to disable it permanently.
2. There is no way to override it in a way which disables the defaults 

Actually, most of that directory does not belong in /usr - it should be under /etc as per Debian policy for configuration files and should be handled as config on
system upgrades and updates.

-- Package-specific info:

-- System Information:
Debian Release: 11.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-10-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages systemd depends on:
ii  adduser            3.118
ii  libacl1            2.2.53-10
ii  libapparmor1       2.13.6-10
ii  libaudit1          1:3.0-2
ii  libblkid1          2.36.1-8
ii  libc6              2.31-13+deb11u2
ii  libcap2            1:2.44-1
ii  libcrypt1          1:4.4.18-4
ii  libcryptsetup12    2:2.3.5-1
ii  libgcrypt20        1.8.7-6
ii  libgnutls30        3.7.1-5
ii  libgpg-error0      1.38-2
ii  libip4tc2          1.8.7-1
ii  libkmod2           28-1
ii  liblz4-1           1.9.3-2
ii  liblzma5           5.2.5-2
ii  libmount1          2.36.1-8
ii  libpam0g           1.4.0-9+deb11u1
ii  libseccomp2        2.5.1-1+deb11u1
ii  libselinux1        3.1-3
ii  libsystemd0        247.3-6
ii  libzstd1           1.4.8+dfsg-2.1
ii  mount              2.36.1-8
ii  ntp [time-daemon]  1:4.2.8p15+dfsg-1
ii  util-linux         2.36.1-8

Versions of packages systemd recommends:
ii  dbus  1.12.20-2

Versions of packages systemd suggests:
ii  policykit-1        0.105-31
pn  systemd-container  <none>

Versions of packages systemd is related to:
pn  dracut           <none>
ii  initramfs-tools  0.140
ii  libnss-systemd   247.3-6
ii  libpam-systemd   247.3-6
ii  udev             247.3-6

-- Configuration Files:
/etc/systemd/logind.conf changed:
[Login]
KillUserProcesses=yes
KillExcludeUsers=root


-- no debconf information