[tests/selinux] pr775-checkpolicy-revdeps: test if power-profiles-daemon can switch between profiles

[tests/selinux] pr775-checkpolicy-revdeps: test if power-profiles-daemon can switch between profiles

[Milos Malik]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : 7093be1ae3eb295ea60e6c3f72fb66bc32bcb423
            Author : Milos Malik <mmalik@redhat.com>
            Date   : 2025-07-25T14:39:46+00:00
            Stats  : +21/-1 in 3 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/7093be1ae3eb295ea60e6c3f72fb66bc32bcb423?branch=pr775-checkpolicy-revdeps

            Log:
            test if power-profiles-daemon can switch between profiles

A recently reported bug revealed that SELinux prevents the
power-profiles-daemon processes from writing to the following file:

 * /sys/devices/system/cpu/cpufreq/policy6/energy_performance_preference

The TC does not reproduce the situation usually.

In order to support the intentional behavior of the daemon when
power cable gets unplugged/plugged, I believe that SELinux policy
should allow the action. The TC looks for appropriate policy rules
and file context patterns.

The TC covers RHEL-100718.

---
diff --git a/selinux-policy/power-profiles-daemon-and-similar/Makefile b/selinux-policy/power-profiles-daemon-and-similar/Makefile
index afd0a0a..e69ab07 100644
--- a/selinux-policy/power-profiles-daemon-and-similar/Makefile
+++ b/selinux-policy/power-profiles-daemon-and-similar/Makefile
@@ -65,6 +65,7 @@ $(METADATA): Makefile
 	@echo "Releases:        -RHEL4 -RHEL5 -RHEL6 -RHEL7 -RHEL8" >> $(METADATA)
 	@echo "Bug:             RHEL-61117" >> $(METADATA) # RHEL-9
 	@echo "Bug:             RHEL-62356" >> $(METADATA) # RHEL-10
+	@echo "Bug:             RHEL-100718" >> $(METADATA) # RHEL-9
 
 	rhts-lint $(METADATA)
 

diff --git a/selinux-policy/power-profiles-daemon-and-similar/main.fmf b/selinux-policy/power-profiles-daemon-and-similar/main.fmf
index f46c363..bb99a94 100644
--- a/selinux-policy/power-profiles-daemon-and-similar/main.fmf
+++ b/selinux-policy/power-profiles-daemon-and-similar/main.fmf
@@ -33,6 +33,7 @@ tag:
 link:
   - verifies: https://issues.redhat.com/browse/RHEL-61117
   - verifies: https://issues.redhat.com/browse/RHEL-62356
+  - verifies: https://issues.redhat.com/browse/RHEL-100718
 adjust:
   - enabled: false
     when: distro == rhel-4, rhel-5, rhel-6, rhel-7, rhel-8, rhel-10, centos-stream-10

diff --git a/selinux-policy/power-profiles-daemon-and-similar/runtest.sh b/selinux-policy/power-profiles-daemon-and-similar/runtest.sh
index fef6400..d2bd088 100755
--- a/selinux-policy/power-profiles-daemon-and-similar/runtest.sh
+++ b/selinux-policy/power-profiles-daemon-and-similar/runtest.sh
@@ -74,6 +74,16 @@ rlJournalStart
     rlPhaseEnd
     fi
 
+    rlPhaseStartTest "RHEL-100718"
+        if [ -d /sys/devices/system/cpu/cpufreq ] ; then
+            for CUR_FILE in `find /sys/devices/system/cpu/cpufreq -type f -name energy_performance_preference` ; do
+                CUR_TYPE=`secon --type --file ${CUR_FILE}`
+                rlSESearchRule "allow powerprofiles_t $CUR_TYPE : file { write } [ ]"
+            done
+        fi
+        rlSESearchRule "allow powerprofiles_t fs_t : filesystem { getattr } [ ]"
+    rlPhaseEnd
+
     if [ -f /usr/lib/systemd/system/${SERVICE_NAME}.service ] ; then
     rlPhaseStartTest "real scenario -- standalone service"
         rlSEService - ${SERVICE_NAME} ${PROCESS_NAME} ${PROCESS_CONTEXT} "start status" 1
@@ -82,8 +92,16 @@ rlJournalStart
         rlRun "powerprofilesctl version"
         rlRun "restorecon -Rv /etc /run /var -e /var/ARTIFACTS" 0-255
         rlSEService - ${SERVICE_NAME} ${PROCESS_NAME} ${PROCESS_CONTEXT} "restart status" 1
+        ORIG_PROFILE=`powerprofilesctl get`
+        if echo ${ORIG_PROFILE} | grep -q balanced ; then
+            rlRun "powerprofilesctl set power-saver" 0,1
+        else
+            rlRun "powerprofilesctl set balanced" 0,1
+        fi
+        sleep 2
         rlRun "powerprofilesctl get"
-        rlRun "powerprofilesctl set balanced" 0,1
+        rlRun "powerprofilesctl set ${ORIG_PROFILE}"
+        sleep 2
         rlRun "powerprofilesctl launch echo" 0,1
         rlSEService - ${SERVICE_NAME} ${PROCESS_NAME} ${PROCESS_CONTEXT} "stop status" 1
     rlPhaseEnd