# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2021-2024 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only

abi <abi/4.0>,

include <tunables/global>

@{exec_path} = @{sbin}/gdm @{sbin}/gdm3
@{att} = /att/gdm/
profile gdm /{{,usr/}{,s}bin/gdm,{,usr/}{,s}bin/gdm3}  flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
  include <abstractions/attached/base>
  include <abstractions/accounts-observe>
  include <abstractions/bus-session>
  include <abstractions/bus-system>
  include <abstractions/nameservice-strict>
  include <abstractions/wutmp>

  capability chown,
  capability dac_override,
  capability dac_read_search,
  capability fowner,
  capability fsetid,
  capability kill,
  capability net_admin,
  capability sys_admin,
  capability sys_nice,
  capability sys_tty_config,

  network netlink raw,

  ptrace (read) peer=unconfined,

  signal (send) set=(term),

  unix (bind, listen) type=stream addr="@/tmp/dbus-@{rand8}",
  unix (send receive accept) type=stream addr="@/tmp/dbus-@{rand8}" peer=(label=gdm-session-worker, addr=none),

  include <abstractions/bus/system/own>

  dbus bind bus=system name=org.gnome.DisplayManager{,.*},
  dbus receive bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.gnome.DisplayManager{,.*}
       peer=(name="@{busname}"),
  dbus send bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.gnome.DisplayManager{,.*}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus (send receive) bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus receive bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="@{busname}"),
  dbus receive bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},org.gnome.DisplayManager{,.*}}"),
  dbus send bus=system path=/org/gnome/DisplayManager{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.DBus}"),

  unix type=stream addr=none peer=(label="@{p_systemd_logind}", addr=none),

  dbus (send receive) bus=system path=/org/freedesktop/login1{,/**}
       interface=org.freedesktop.login1{,.*}
       peer=(name="{@{busname},org.freedesktop.login1{,.*}}", label="@{p_systemd_logind}"),
  dbus (send receive) bus=system path=/org/freedesktop/login1{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.login1{,.*}}", label="@{p_systemd_logind}"),
  dbus send bus=system path=/org/freedesktop/login1{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="{@{busname},org.freedesktop.login1{,.*}}", label="@{p_systemd_logind}"),
  dbus send bus=system path=/org/freedesktop/login1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},org.freedesktop.login1{,.*}}", label="@{p_systemd_logind}"),
  dbus receive bus=system path=/org/freedesktop/login1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.login1{,.*}}", label="@{p_systemd_logind}"),

  @{exec_path} mr,

  @{sh_path}                       rix,
  @{bin}/chvt                      rix,
  @{bin}/pidof                     rpx,
  @{bin}/plymouth                  rpx,
  @{bin}/prime-switch             rpux,
  @{bin}/sleep                     rix,
  @{bin}/systemd-cat               rix,
  @{lib}/{,gdm/}gdm-session-worker rpx,
  /etc/gdm{3,}/PrimeOff/Default    rix,

  /usr/share/gdm{3,}/gdm.schemas r,
  /usr/share/wayland-sessions/*.desktop r,
  /usr/share/xsessions/*.desktop r,

  /etc/.pwd.lock rwk,
  /etc/default/locale r,
  /etc/gdm{3,}/custom.conf r,
  /etc/gdm{3,}/daemon.conf r,
  /etc/locale.conf r,
  /etc/sysconfig/displaymanager r,
  /etc/sysconfig/windowmanager r,

  /var/lib/gdm{3,}/ rw,
  /var/lib/gdm{3,}/block-initial-setup rw,

  /var/log/gdm{3,}/ rw,

  @{GDM_HOME}/ rw,
  @{GDM_HOME}/** rw,

        @{run}/gdm{,3}/@{HOME}/ rw,
        @{run}/gdm{,3}/home/ rw,
        @{run}/gdm{,3}.pid rw,
        @{run}/gdm{,3}/ rw,
        @{run}/gdm{,3}/gdm.pid rw,
  owner @{run}/gdm{,3}/dbus/ rw,
  owner @{run}/gdm{,3}/dbus/dbus-@{rand8} rw,

  @{run}/systemd/seats/seat@{int} r,
  @{run}/systemd/sessions/* r,
  @{run}/systemd/users/@{uid} r,

  @{run}/udev/data/+drm:card@{int}-* r,   # For screen outputs
  @{run}/udev/data/+pci:* r,              # Identifies all PCI devices (CPU, GPU, Network, Disks, USB, etc.)
  @{run}/udev/data/c226:@{int} r,         # for /dev/dri/card*

  @{run}/udev/tags/master-of-seat/ r,

  @{sys}/devices/**/uevent r,
  @{sys}/devices/@{pci}/boot_vga r,
  @{sys}/devices/virtual/tty/tty@{int}/active r,
  @{sys}/fs/cgroup/user.slice/user-@{uid}.slice/session-@{word}.scope/cgroup.events r,

        @{PROC}/@{pid}/cgroup r,
        @{PROC}/1/environ r,
        @{PROC}/cmdline r,
        @{PROC}/sys/kernel/osrelease r,
  owner @{PROC}/@{pid}/cmdline r,
  owner @{PROC}/@{pid}/fd/ r,

  /dev/tty rw,

  include if exists <local/gdm>
}

# vim:syntax=apparmor
