[tests/selinux] pr775-checkpolicy-revdeps: add new test which covers perf_event class+permissions

[Milos Malik <mmalik@redhat.com>]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : 95855db588c0574b2697afd5e8b3748522d1a025
            Author : Milos Malik <mmalik@redhat.com>
            Date   : 2020-12-14T11:14:32+00:00
            Stats  : +154/-0 in 3 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/95855db588c0574b2697afd5e8b3748522d1a025?branch=pr775-checkpolicy-revdeps

            Log:
            add new test which covers perf_event class+permissions

The kernel already recognizes the perf_event class and its permissions.
Current SELinux policy does not, but it will.
To avoid possible issues, we need to test some basic scenarios which
take advantage of the perf_event class. For example: the perf tool
executed by root/unconfined_t user.

The TC covers BZ#1901957.

---
diff --git a/selinux-policy/perf_event-and-related/Makefile b/selinux-policy/perf_event-and-related/Makefile
new file mode 100644
index 0000000..16213ab
--- /dev/null
+++ b/selinux-policy/perf_event-and-related/Makefile
@@ -0,0 +1,68 @@
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Makefile of /CoreOS/selinux-policy/Regression/perf_event-and-related
+#   Description: the service was running as initrc_t or init_t, now it is confined by SELinux
+#   Author: Milos Malik <mmalik@redhat.com>
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Copyright (c) 2020 Red Hat, Inc. All rights reserved.
+#
+#   This copyrighted material is made available to anyone wishing
+#   to use, modify, copy, or redistribute it subject to the terms
+#   and conditions of the GNU General Public License version 2.
+#
+#   This program is distributed in the hope that it will be
+#   useful, but WITHOUT ANY WARRANTY; without even the implied
+#   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+#   PURPOSE. See the GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public
+#   License along with this program; if not, write to the Free
+#   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+#   Boston, MA 02110-1301, USA.
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+export TEST=/CoreOS/selinux-policy/Regression/perf_event-and-related
+export TESTVERSION=1.0
+
+BUILT_FILES=
+
+FILES=$(METADATA) runtest.sh Makefile PURPOSE
+
+.PHONY: all install download clean
+
+run: $(FILES) build
+	./runtest.sh
+
+build: $(BUILT_FILES)
+	chmod a+x runtest.sh
+	chcon -t bin_t runtest.sh
+
+clean:
+	rm -f *~ $(BUILT_FILES)
+
+include /usr/share/rhts/lib/rhts-make.include
+
+$(METADATA): Makefile
+	@echo "Owner:           Milos Malik <mmalik@redhat.com>" > $(METADATA)
+	@echo "Name:            $(TEST)" >> $(METADATA)
+	@echo "TestVersion:     $(TESTVERSION)" >> $(METADATA)
+	@echo "Path:            $(TEST_DIR)" >> $(METADATA)
+	@echo "Description:     the service was running as initrc_t or init_t, now it is confined by SELinux" >> $(METADATA)
+	@echo "Type:            Regression" >> $(METADATA)
+	@echo "TestTime:        10m" >> $(METADATA)
+	@echo "RunFor:          selinux-policy" >> $(METADATA)
+	@echo "Requires:        audit libselinux libselinux-utils policycoreutils selinux-policy selinux-policy-targeted setools-console perf" >> $(METADATA)
+	@echo "RhtsRequires:    library(selinux-policy/common)" >> $(METADATA)
+	@echo "Environment:     AVC_ERROR=+no_avc_check" >> $(METADATA)
+	@echo "Priority:        Normal" >> $(METADATA)
+	@echo "License:         GPLv2" >> $(METADATA)
+	@echo "Confidential:    no" >> $(METADATA)
+	@echo "Destructive:     no" >> $(METADATA)
+	@echo "Releases:        -RHEL4 -RHEL5 -RHEL6 -RHEL7" >> $(METADATA)
+	@echo "Bug:             1901957" >> $(METADATA) # Fedora 34
+
+	rhts-lint $(METADATA)
+

diff --git a/selinux-policy/perf_event-and-related/PURPOSE b/selinux-policy/perf_event-and-related/PURPOSE
new file mode 100644
index 0000000..363240f
--- /dev/null
+++ b/selinux-policy/perf_event-and-related/PURPOSE
@@ -0,0 +1,5 @@
+PURPOSE of /CoreOS/selinux-policy/Regression/perf_event-and-related
+Author: Milos Malik <mmalik@redhat.com>
+
+Description: Is the perf_event class and its permissions defined? Does SELinux allow various perf_event aware programs to work?
+

diff --git a/selinux-policy/perf_event-and-related/runtest.sh b/selinux-policy/perf_event-and-related/runtest.sh
new file mode 100755
index 0000000..74c687f
--- /dev/null
+++ b/selinux-policy/perf_event-and-related/runtest.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+# vim: dict=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   runtest.sh of /CoreOS/selinux-policy/Regression/perf_event-and-related
+#   Description: the service was running as initrc_t or init_t, now it is confined by SELinux
+#   Author: Milos Malik <mmalik@redhat.com>
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Copyright (c) 2020 Red Hat, Inc. All rights reserved.
+#
+#   This copyrighted material is made available to anyone wishing
+#   to use, modify, copy, or redistribute it subject to the terms
+#   and conditions of the GNU General Public License version 2.
+#
+#   This program is distributed in the hope that it will be
+#   useful, but WITHOUT ANY WARRANTY; without even the implied
+#   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+#   PURPOSE. See the GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public
+#   License along with this program; if not, write to the Free
+#   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+#   Boston, MA 02110-1301, USA.
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+# Include Beaker environment
+. /usr/bin/rhts-environment.sh || exit 1
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+PACKAGE="selinux-policy"
+
+rlJournalStart
+    rlLog "If this test fails, please contact mmalik on IRC #selinux"
+    rlLog "This test should fail if tested bugs are NOT fixed yet"
+    rlPhaseStartSetup
+        rlRun "rlImport 'selinux-policy/common'"
+        rlAssertRpm ${PACKAGE}
+        rlAssertRpm ${PACKAGE}-targeted
+        rlAssertRpm perf
+
+        rlRun "semodule -c -E base"
+        if grep -q perf_event base.cil ; then
+            rlLog "current SELinux policy already defines the perf_event class"
+            UPDATED_BASE_CIL=false
+        else
+            rlLog "current SELinux policy does NOT define the perf_event class"
+            rlLog "going to define the perf_event class for testing purposes"
+            rlRun "sed -i 's/^\(.*classorder.*\)))$/(class perf_event (open cpu kernel tracepoint read write ))\n\1 perf_event ))/' base.cil"
+            rlRun "semodule -i base.cil"
+            UPDATED_BASE_CIL=true
+        fi
+
+        rlSESetEnforce
+        rlSEStatus
+        rlSESetTimestamp
+        sleep 2
+    rlPhaseEnd
+
+    rlPhaseStartTest "bz#1901957"
+        rlSESearchRule "allow unconfined_t unconfined_t : perf_event { open cpu kernel read write } [ ]"
+    rlPhaseEnd
+
+    rlPhaseStartTest "real scenario -- perf tool under root"
+        rlRun "perf record -o /dev/null echo test"
+        rlRun "seinfo -c perf_event -x"
+        rlRun "sesearch -c perf_event -A --dontaudit"
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        sleep 2
+        rlSECheckAVC
+        if ${UPDATED_BASE_CIL} ; then
+            rlRun "semodule -r base"
+        fi
+    rlPhaseEnd
+rlJournalPrintText
+rlJournalEnd
+