[gentoo-commits] proj/hardened-refpolicy:next commit in: policy/modules/system/

[Jason Zaman]

commit:     136d58b22660009b8fba0fbf2a1a160aba8d9735
Author:     Nicolas Iooss <nicolas.iooss <AT> m4x <DOT> org>
AuthorDate: Tue Dec 27 13:44:58 2016 +0000
Commit:     Jason Zaman <perfinion <AT> gentoo <DOT> org>
CommitDate: Sun Jan  1 16:26:28 2017 +0000
URL:        https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=136d58b2

systemd: add systemd-backlight policy

The documentation page of this service describes well which access are
needed
(https://www.freedesktop.org/software/systemd/man/systemd-backlight <AT> .service.html).
systemd-backlight:
- is a systemd service
- manages /var/lib/systemd/backlight/
- reads udev device properties to find ID_BACKLIGHT_CLAMP

Signed-off-by: Nicolas Iooss <nicolas.iooss <AT> m4x.org>

 policy/modules/system/systemd.fc |  2 ++
 policy/modules/system/systemd.te | 24 ++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/policy/modules/system/systemd.fc b/policy/modules/system/systemd.fc
index ff0f976..673bb68 100644
--- a/policy/modules/system/systemd.fc
+++ b/policy/modules/system/systemd.fc
@@ -28,7 +28,9 @@
 /usr/lib/systemd/system/[^/]*shutdown.*	--	gen_context(system_u:object_r:power_unit_t,s0)
 /usr/lib/systemd/system/[^/]*sleep.*	--	gen_context(system_u:object_r:power_unit_t,s0)
 /usr/lib/systemd/system/[^/]*suspend.*	--	gen_context(system_u:object_r:power_unit_t,s0)
+/usr/lib/systemd/system/systemd-backlight.*	--	gen_context(system_u:object_r:systemd_backlight_unit_t,s0)
 
+/var/lib/systemd/backlight(/.*)?	gen_context(system_u:object_r:systemd_backlight_var_lib_t,s0)
 /var/lib/systemd/linger(/.*)?	gen_context(system_u:object_r:systemd_logind_var_lib_t,s0)
 
 /run/\.nologin[^/]*	--	gen_context(system_u:object_r:systemd_sessions_var_run_t,s0)

diff --git a/policy/modules/system/systemd.te b/policy/modules/system/systemd.te
index 196abab..c50e93a 100644
--- a/policy/modules/system/systemd.te
+++ b/policy/modules/system/systemd.te
@@ -26,6 +26,12 @@ type systemd_backlight_t;
 type systemd_backlight_exec_t;
 init_system_domain(systemd_backlight_t, systemd_backlight_exec_t)
 
+type systemd_backlight_unit_t;
+init_unit_file(systemd_backlight_unit_t)
+
+type systemd_backlight_var_lib_t;
+files_type(systemd_backlight_var_lib_t)
+
 type systemd_binfmt_t;
 type systemd_binfmt_exec_t;
 init_system_domain(systemd_binfmt_t, systemd_binfmt_exec_t)
@@ -140,6 +146,24 @@ logging_send_syslog_msg(systemd_log_parse_env_type)
 
 ######################################
 #
+# Backlight local policy
+#
+
+allow systemd_backlight_t systemd_backlight_var_lib_t:dir manage_dir_perms;
+init_var_lib_filetrans(systemd_backlight_t, systemd_backlight_var_lib_t, dir)
+manage_files_pattern(systemd_backlight_t, systemd_backlight_var_lib_t, systemd_backlight_var_lib_t)
+
+systemd_log_parse_environment(systemd_backlight_t)
+
+# Allow systemd-backlight to write to /sys/class/backlight/*/brightness
+dev_rw_sysfs(systemd_backlight_t)
+
+files_read_etc_files(systemd_backlight_t)
+
+udev_read_pid_files(systemd_backlight_t)
+
+######################################
+#
 # Cgroups local policy
 #