apparmor/profiles/apparmor.d/tinyproxy

# -*- mode: apparmor; -*-
# ------------------------------------------------------------------
#
#    Copyright (C) 2024 Canonical Ltd.
#
#    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.
#
# ------------------------------------------------------------------
# vim: ft=apparmor

abi <abi/4.0>,

include <tunables/global>

profile tinyproxy /usr/bin/tinyproxy {
  include <abstractions/base>
  include <abstractions/nameservice-strict>

  # allow to drop privileges
  capability setuid,
  capability setgid,

  # to provide flexibility, when run as root tinyproxy may need to read files
  # owned by other users
  capability dac_override,
  capability dac_read_search,
  # also tinyproxy may be configured to bind to a privileged port so ensure we
  # allow this as well
  capability net_bind_service,

  file mr /usr/bin/tinyproxy,

  file r @{etc_ro}/tinyproxy/tinyproxy.conf,
  # tinyproxy.conf allows to configure the locations of various files that will
  # be written to by tinyproxy including ErrorFile, DefaultErrorFile, LogFile,
  # and StatFile as well as PidFile. This profile allows tinyproxy to write to
  # the default locations but if these are changed in the configuration file,
  # additional rules should be added to the /etc/apparmor.d/local/tinyproxy file
  # to allow this access
  file rw /run/tinyproxy/tinyproxy.pid,  # PidFile
  file rw /var/log/tinyproxy/tinyproxy.log, # LogFile

  file r /usr/share/tinyproxy/*, #ErrorFile, DefaultErrorFile, StatFile etc

  # for network access
  network inet stream,
  network inet dgram,
  network inet6 stream,
  network inet6 dgram,

  # for DNS resolution
  network netlink raw,

  # Site-specific additions and overrides. See local/README for details.
  include if exists <local/tinyproxy>
}