# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2022-2024 Alexandre Pujol <alexandre@pujol.io>
# SPDX-License-Identifier: GPL-2.0-only

abi <abi/4.0>,

include <tunables/global>

@{bin_dirs} = @{bin}/ /snap/{snapd,core}/{,x}@{int}@{bin}
@{lib_dirs} = @{lib}/ /snap/{snapd,core}/{,x}@{int}@{lib}

@{exec_path} = @{bin_dirs}/snap
@{att} = /att/snap/
profile snap /{{,usr/}bin/snap,snap/{snapd,core}/{,x}[0-9]{[0-9],}{[0-9],}{[0-9],}{[0-9],}{[0-9],}{[0-9],}{[0-9],}{[0-9],}{[0-9],}/{,usr/}bin/snap}  flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
  include <abstractions/attached/base>
  include <abstractions/bus-session>
  include <abstractions/bus-system>
  include <abstractions/attached/consoles>
  include <abstractions/disks-read>
  include <abstractions/nameservice-strict>
  include <abstractions/ssl_certs>

  capability chown,
  capability dac_override,
  capability dac_read_search,
  capability setuid,
  capability sys_admin,
  capability sys_ptrace,

  network inet dgram,
  network inet stream,
  network inet6 dgram,
  network inet6 stream,
  network netlink raw,

  ptrace read peer=snap.*,

  unix (send, receive) type=stream peer=(label=apt),

  mount options=(ro, silent) -> /tmp/snapd-auto-import-mount-@{int}/,

  include <abstractions/bus/session/own>

  dbus bind bus=session name=io.snapcraft.Launcher{,.*},
  dbus receive bus=session path=/io/snapcraft/Launcher{,/**}
       interface=io.snapcraft.Launcher{,.*}
       peer=(name="@{busname}"),
  dbus send bus=session path=/io/snapcraft/Launcher{,/**}
       interface=io.snapcraft.Launcher{,.*}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus (send receive) bus=session path=/io/snapcraft/Launcher{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus receive bus=session path=/io/snapcraft/Launcher{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="@{busname}"),
  dbus receive bus=session path=/io/snapcraft/Launcher{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},io.snapcraft.Launcher{,.*}}"),
  dbus send bus=session path=/io/snapcraft/Launcher{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  include <abstractions/bus/session/own>

  dbus bind bus=session name=io.snapcraft.SessionAgent{,.*},
  dbus receive bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=io.snapcraft.SessionAgent{,.*}
       peer=(name="@{busname}"),
  dbus send bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=io.snapcraft.SessionAgent{,.*}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus (send receive) bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  dbus receive bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="@{busname}"),
  dbus receive bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},io.snapcraft.SessionAgent{,.*}}"),
  dbus send bus=session path=/io/snapcraft/SessionAgent{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.DBus}"),
  include <abstractions/bus/session/own>

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

  unix type=stream addr=none peer=(label=snap.snap-store.*, addr=none),

  dbus (send receive) bus=session path=/io/snapcraft/PrivilegedDesktopLauncher{,/**}
       interface=io.snapcraft.PrivilegedDesktopLauncher{,.*}
       peer=(name="{@{busname},io.snapcraft.PrivilegedDesktopLauncher{,.*}}", label=snap.snap-store.*),
  dbus (send receive) bus=session path=/io/snapcraft/PrivilegedDesktopLauncher{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},io.snapcraft.PrivilegedDesktopLauncher{,.*}}", label=snap.snap-store.*),
  dbus send bus=session path=/io/snapcraft/PrivilegedDesktopLauncher{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="{@{busname},io.snapcraft.PrivilegedDesktopLauncher{,.*}}", label=snap.snap-store.*),
  dbus send bus=session path=/io/snapcraft/PrivilegedDesktopLauncher{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},io.snapcraft.PrivilegedDesktopLauncher{,.*}}", label=snap.snap-store.*),
  dbus receive bus=session path=/io/snapcraft/PrivilegedDesktopLauncher{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},io.snapcraft.PrivilegedDesktopLauncher{,.*}}", label=snap.snap-store.*),
  unix type=stream addr=none peer=(label="@{p_systemd_user}", addr=none),

  dbus (send receive) bus=session path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.systemd1{,.*}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd_user}"),
  dbus (send receive) bus=session path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd_user}"),
  dbus send bus=session path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd_user}"),
  dbus send bus=session path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd_user}"),
  dbus receive bus=session path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd_user}"),
  unix type=stream addr=none peer=(label="@{p_systemd}", addr=none),

  dbus (send receive) bus=system path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.systemd1{,.*}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd}"),
  dbus (send receive) bus=system path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.Properties
       member={Get,GetAll,Set,PropertiesChanged}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd}"),
  dbus send bus=system path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd}"),
  dbus send bus=system path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member=GetManagedObjects
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd}"),
  dbus receive bus=system path=/org/freedesktop/systemd1{,/**}
       interface=org.freedesktop.DBus.ObjectManager
       member={InterfacesAdded,InterfacesRemoved}
       peer=(name="{@{busname},org.freedesktop.systemd1{,.*}}", label="@{p_systemd}"),

  dbus send bus=session path=/org/freedesktop/portal/documents
       interface=org.freedesktop.portal.Documents
       member=GetMountPoint
       peer=(name=org.freedesktop.portal.Documents, label="{xdg-document-portal,unconfined}"),

  dbus receive bus=session
       interface=org.freedesktop.DBus.Introspectable
       member=Introspect
       peer=(name=@{busname}, label=gnome-shell),

  @{exec_path} mrix,

  @{sh_path} mr,
  @{bin}/mount rix,
  @{bin}/getent rix,

  @{bin}/gpg{,2}          rcx -> gpg,
  @{bin}/systemctl        rcx -> systemctl,
  @{bin}/systemd-run      rcx -> run, # Start snap from the cli
  @{bin}/unsquashfs       rcx -> unsquashfs,
  @{bin}/xdg-settings     rcx -> xdg-settings,

  @{bin_dirs}/xdelta3                 ix,
  @{lib_dirs}/**                      mr,
  @{lib_dirs}/snapd/snap-confine     rpx,
  @{lib_dirs}/snapd/snap-seccomp     rpx,
  @{lib_dirs}/snapd/snapd            rpx,

  /etc/fstab r,

  /var/lib/snapd/{,**} rwk,
  /var/cache/snapd/commands.db rwk,
  /var/cache/snapd/names r,

  @{DESKTOP_HOME}/snap/{,**} rw,
  /snap/{,**} rw,

  @{HOME}/ r,
  @{HOME}/.snap.mkdir-new/ rw,
  @{HOME}/.snap/{,**} rw,
  @{HOME}/snap/{,**} rw,

  @{user_pkg_dirs}/** r,

  owner @{tmp}/read-file@{int}/unpack/{,**} w,
  owner @{tmp}/snapd-auto-import-mount-@{int}/ rw,

        @{run}/user/@{uid}/bus rw,
  owner @{run}/user/@{uid}/.mutter-Xwaylandauth.@{rand6} r,
  owner @{run}/user/@{uid}/gdm/Xauthority r,
  owner @{run}/user/@{uid}/snapd-session-agent.socket rw,
  owner @{run}/user/@{uid}/systemd/notify rw,

  @{run}/mount/utab r,
  @{run}/snapd.socket rw,

  @{sys}/fs/cgroup/cgroup.controllers r,
  @{sys}/kernel/security/apparmor/features/{,**} r,

        @{PROC}/@{pid}/cgroup r,
        @{PROC}/@{pid}/mountinfo r,
        @{PROC}/cgroups r,
        @{PROC}/cmdline r,
        @{PROC}/sys/kernel/random/uuid r,
        @{PROC}/sys/kernel/seccomp/actions_avail r,
        @{PROC}/version r,
        @{PROC}/@{pid}/attr/apparmor/current r,
  owner @{PROC}/@{pid}/mounts r,

  /dev/tty@{int} rw,
  /dev/ttyS@{int} rw,

  /apparmor/.null rw,

  # file_inherit, safe to deny
  deny owner @{user_share_dirs}/gvfs-metadata/* r,
  deny owner @{user_share_dirs}/gnome-shell/session.gvdb rw,

  profile gpg flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
    include <abstractions/attached/base>

    @{bin}/gpg{,2} mr,

    @{bin}/dirmngr           rix,
    @{bin}/gpg-agent         rix,
    @{bin}/gpg-connect-agent rix,

    owner @{HOME}/.snap/gnupg/ rw,
    owner @{HOME}/.snap/gnupg/** rwkl,

    include if exists <local/snap_gpg>
  }

  profile xdg-settings flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
    include <abstractions/attached/base>
    include <abstractions/desktop-files>

    @{bin}/xdg-settings mr,

    @{sh_path}       r,
    @{bin}/{,e}grep  rix,
    @{bin}/basename  rix,
    @{bin}/cat        ix,
    @{bin}/cut       rix,
    @{bin}/head       ix,
    @{bin}/mkdir      ix,
    @{bin}/mktemp     ix,
    @{bin}/mv         ix,
    @{bin}/readlink   ix,
    @{bin}/realpath  rix,
    @{bin}/rm         ix,
    @{bin}/sed        ix,
    @{bin}/sleep      ix,
    @{bin}/sort       ix,
    @{bin}/touch      ix,
    @{bin}/tr         ix,
    @{bin}/uname      ix,
    @{bin}/wc         ix,

    @{bin}/xdg-mime   px,

    include if exists <local/snap_xdg-settings>
  }

  profile run flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
    include <abstractions/attached/base>

    unix bind type=stream addr=@@{udbus}/bus/systemd-run/,

    @{bin}/systemd-run mr,

    owner @{run}/user/@{uid}/systemd/private rw,

    include if exists <local/snap_run>
  }

  profile systemctl flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
    include <abstractions/attached/base>
    include <abstractions/app/systemctl>
    include <abstractions/bus/system/org.freedesktop.systemd1>

    capability net_admin,

    network unix stream,
    network (send receive) netlink raw,

          @{run}/systemd/notify w,
    owner @{run}/user/@{uid}/systemd/notify rw,
    owner @{run}/user/@{uid}/systemd/private rw,

    include if exists <local/snap_systemctl>
  }

  profile unsquashfs flags=(attach_disconnected,attach_disconnected.path=@{att},complain) {
    include <abstractions/attached/base>

    @{bin}/unsquashfs mr,

    /**.snap r,

    owner /tmp/read-file@{int}/unpack/{,**} w,

    include if exists <local/snap_unsquashfs>
  }

  include if exists <local/snap>
}

# vim:syntax=apparmor
