apparmor.d/apparmor.d/profiles-g-l/hddtemp

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# apparmor.d - Full set of apparmor profiles
# Copyright (C) 2017-2021 Mikhail Morfikov
# SPDX-License-Identifier: GPL-2.0-only
abi <abi/3.0>,
include <tunables/global>
@{exec_path} = /{usr/,}{s,}bin/hddtemp
profile hddtemp @{exec_path} {
include <abstractions/base>
# To remove the following errors:
# /dev/sda: Permission denied
capability sys_rawio,
# There's the following error in strace:
# ioctl(3, HDIO_DRIVE_CMD, 0x7ffdfeafc074) = -1 EACCES (Permission denied)
# This should be covered by CAP_SYS_RAWIO instead.
# (see: https://www.kernel.org/doc/Documentation/ioctl/hdio.rst)
# It looks like hddtemp works just fine without it.
deny capability sys_admin,
network inet stream,
network inet6 stream,
@{exec_path} mr,
# Monitored hard drives
/dev/sd[a-z]* r,
# Database file that allows hddtemp to recognize supported drives
/etc/hddtemp.db r,
# Needed when the hddtemp daemon is started in the TCP/IP mode
/etc/gai.conf r,
include if exists <local/hddtemp>
}