apparmor.d/profiles/dropbox

# vim:syntax=apparmor
# ------------------------------------------------------------------
#
#    Copyright (C) 2015-2020 Mikhail Morfikov
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of version 2 of the GNU General Public
#    License published by the Free Software Foundation.
#
# ------------------------------------------------------------------

abi <abi/3.0>,

include <tunables/global>

@{DROPBOX_DEMON_DIR}=@{HOME}/.dropbox-dist/
@{DROPBOX_HOME_DIR}=@{HOME}/.dropbox/
@{DROPBOX_SHARE_DIR}=@{HOME}/Dropbox*/

@{exec_path} = /{usr/,}bin/dropbox
profile dropbox @{exec_path} {
  include <abstractions/base>
  include <abstractions/X>
  include <abstractions/gtk>
  include <abstractions/fonts>
  include <abstractions/fontconfig-cache-read>
  include <abstractions/freedesktop.org>
  include <abstractions/python>
  include <abstractions/nameservice-strict>
  include <abstractions/qt5-settings-write>
  include <abstractions/openssl>
  include <abstractions/ssl_certs>
  include <abstractions/deny-root-dir-access>

  ptrace peer=@{profile_name},

  @{exec_path} r,

  /{usr/,}bin/ r,
  /{usr/,}bin/python3.[0-9]* r,

  # Dropbox home files
  owner @{HOME}/ r,
  owner @{DROPBOX_HOME_DIR}/ rw,
  owner @{DROPBOX_HOME_DIR}/** rwk,

  # Shared files
  owner @{DROPBOX_SHARE_DIR}/ rw,
  owner @{DROPBOX_SHARE_DIR}/{,**} rw,

  # Dropbox proprietary demon files
  owner @{DROPBOX_DEMON_DIR}/{,**} rw,
  owner @{DROPBOX_DEMON_DIR}/dropboxd rwix,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/dropbox rwix,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/dropboxd rwix,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/dropbox_py3 rwix,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/wmctrl rwix,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/*.so* mrw,
  owner @{DROPBOX_DEMON_DIR}/dropbox-lnx.*/plugins/platforms/*.so mrw,

  /{usr/,}bin/{,ba,da}sh rix,
  /{usr/,}bin/readlink   rix,
  /{usr/,}bin/dirname    rix,
  /{usr/,}bin/uname      rix,
  /{usr/,}sbin/ldconfig  rix,
  /{usr/,}bin/{,@{multiarch}-}gcc-[0-9]* rix,
  /{usr/,}bin/{,@{multiarch}-}objdump    rix,

  # Needed for updating Dropbox
  owner /tmp/.dropbox-dist-new-*/{,**} rw,
  owner /tmp/.dropbox-dist-new-*/.dropbox-dist/dropboxd rix,
  owner /tmp/.dropbox-dist-new-*/.dropbox-dist/dropbox-lnx.*/dropbox rwix,
  owner /tmp/.dropbox-dist-new-*/.dropbox-dist/dropbox-lnx.*/dropboxd rwix,
  owner /tmp/.dropbox-dist-new-*/.dropbox-dist/dropbox-lnx.*/*.so mrw,
  owner @{HOME}/.dropbox-dist-old*/{,**} rw,
  owner @{HOME}/.dropbox-dist-tmp-*/{,**} rw,

  # For autostart
  deny owner @{HOME}/.config/autostart/dropbox.desktop rw,

  # What's this for?
  /{usr/,}bin/mount mrix,
  @{sys}/devices/virtual/block/dm-[0-9]*/dm/name r,
  @{sys}/devices/virtual/block/loop[0-9]/ r,
  @{sys}/devices/virtual/block/loop[0-9]/loop/{autoclear,backing_file} r,
  @{run}/mount/utab r,

  deny       @{PROC}/ r,
  # Dropbox doesn't sync without the 'stat' file
       owner @{PROC}/@{pid}/stat r,
  #
  deny owner @{PROC}/@{pid}/statm r,
  deny owner @{PROC}/@{pid}/io r,
  deny       @{PROC}/@{pid}/net/tcp{,6} r,
  deny       @{PROC}/@{pid}/net/udp{,6} r,
  # When "cmdline" is blocked, Dropbox has some issues while starting:
  #  The Dropbox daemon is not installed! Run "dropbox start -i" to install the daemon
             @{PROC}/@{pid}/cmdline r,
  #
       owner @{PROC}/@{pid}/fd/ r,
       owner @{PROC}/@{pid}/fdinfo/* r,
       owner @{PROC}/@{pid}/task/ r,
       owner @{PROC}/@{pid}/task/@{tid}/stat r,
       owner @{PROC}/@{pid}/task/@{tid}/comm r,
  deny owner @{PROC}/@{pid}/oom_{,score_}adj rw,
       owner @{PROC}/@{pid}/mounts r,
       owner @{PROC}/@{pid}/mountinfo r,
  deny       @{PROC}/version r,
  # To remove the following error:
  #  RuntimeWarning: 'sin' and 'sout' swap memory stats couldn't be determined and were set to 0
  #  ([Errno 13] Permission denied: '/proc/vmstat')
             @{PROC}/vmstat r,

  # Dropbox first tries the /tmp/ dir, and if it's denied it uses the /var/tmp/ dir instead
  owner /tmp/dropbox-antifreeze-* rw,
  owner /tmp/[a-zA-z0-9]* rw,
  owner /tmp/#[0-9]*[0-9] rw,
  owner /var/tmp/etilqs_* rw,

  @{run}/systemd/users/[0-9]* r,

  deny @{sys}/module/apparmor/parameters/enabled r,

  # External apps
  /{usr/,}bin/xdg-open                                  rCx -> open,
  /{usr/,}bin/lsb_release                               rPx -> child-lsb_release,

  # Allowed apps to open
  /{usr/,}lib/firefox/firefox rPUx,


  profile open {
    include <abstractions/base>
    include <abstractions/xdg-open>

    /{usr/,}bin/xdg-open mr,

    /{usr/,}bin/{,ba,da}sh      rix,
    /{usr/,}bin/gawk            rix,
    /{usr/,}bin/readlink        rix,
    /{usr/,}bin/basename        rix,

    owner @{HOME}/ r,

    owner @{run}/user/[0-9]*/ r,

    # Allowed apps to open
    /{usr/,}lib/firefox/firefox rPUx,

    # file_inherit
    owner @{HOME}/.xsession-errors w,

  }

  include if exists <local/dropbox>
}