[RFC,v3] selinux-testsuite: add lockdown tests

Commit Message

Stephen Smalley Nov. 27, 2019, 5:50 p.m. UTC

Test all permissions associated with the lockdown class.

Signed-off-by: Stephen Smalley <[e-mail]>
---
v3 fixes a mismerge that broke v2 build.
 policy/Makefile         |  4 +++
 policy/test_lockdown.te | 54 +++++++++++++++++++++++++++++++++++++++++
 tests/Makefile          |  4 +++
 tests/lockdown/Makefile |  2 ++
 tests/lockdown/test     | 42 ++++++++++++++++++++++++++++++++
 5 files changed, 106 insertions(+)
 create mode 100644 policy/test_lockdown.te
 create mode 100644 tests/lockdown/Makefile
 create mode 100755 tests/lockdown/test

Patch

diff --git a/policy/Makefile b/policy/Makefile
index 87b2856ae1ca..dc637793aa86 100644
--- a/policy/Makefile
+++ b/policy/Makefile
@@ -101,6 +101,10 @@  ifeq ($(shell grep -q module_load $(POLDEV)/include/support/all_perms.spt && ech
 TARGETS+=test_module_load.te
 endif
 
+ifeq ($(shell grep -q lockdown $(POLDEV)/include/support/all_perms.spt && echo true),true)
+TARGETS += test_lockdown.te
+endif
+
 ifeq (x$(DISTRO),$(filter x$(DISTRO),xRHEL4 xRHEL5 xRHEL6))
 TARGETS:=$(filter-out test_overlayfs.te test_mqueue.te test_ibpkey.te, $(TARGETS))
 endif
diff --git a/policy/test_lockdown.te b/policy/test_lockdown.te
new file mode 100644
index 000000000000..a7a4b6bb8aec
--- /dev/null
+++ b/policy/test_lockdown.te
@@ -0,0 +1,54 @@ 
+#################################
+#
+# Policy for testing lockdown
+#
+
+attribute lockdowndomain;
+
+# Domain for lockdown (all operations allowed)
+type test_lockdown_all_t;
+domain_type(test_lockdown_all_t)
+unconfined_runs_test(test_lockdown_all_t)
+typeattribute test_lockdown_all_t lockdowndomain;
+typeattribute test_lockdown_all_t testdomain;
+
+dev_read_raw_memory(test_lockdown_all_t)
+kernel_read_core_if(test_lockdown_all_t)
+corecmd_bin_entry_type(test_lockdown_all_t)
+allow test_lockdown_all_t self:lockdown integrity;
+allow test_lockdown_all_t self:lockdown confidentiality;
+
+# Domain for integrity
+type test_lockdown_integrity_t;
+domain_type(test_lockdown_integrity_t)
+unconfined_runs_test(test_lockdown_integrity_t)
+typeattribute test_lockdown_integrity_t lockdowndomain;
+typeattribute test_lockdown_integrity_t testdomain;
+
+dev_read_raw_memory(test_lockdown_integrity_t)
+kernel_read_core_if(test_lockdown_integrity_t)
+corecmd_bin_entry_type(test_lockdown_integrity_t)
+allow test_lockdown_integrity_t self:lockdown integrity;
+
+# Domain for confidentiality
+type test_lockdown_confidentiality_t;
+domain_type(test_lockdown_confidentiality_t)
+unconfined_runs_test(test_lockdown_confidentiality_t)
+typeattribute test_lockdown_confidentiality_t lockdowndomain;
+typeattribute test_lockdown_confidentiality_t testdomain;
+
+dev_read_raw_memory(test_lockdown_confidentiality_t)
+kernel_read_core_if(test_lockdown_confidentiality_t)
+corecmd_bin_entry_type(test_lockdown_confidentiality_t)
+allow test_lockdown_confidentiality_t self:lockdown confidentiality;
+
+# Domain for lockdown (all operations denied)
+type test_lockdown_none_t;
+domain_type(test_lockdown_none_t)
+unconfined_runs_test(test_lockdown_none_t)
+typeattribute test_lockdown_none_t lockdowndomain;
+typeattribute test_lockdown_none_t testdomain;
+
+dev_read_raw_memory(test_lockdown_none_t)
+kernel_read_core_if(test_lockdown_none_t)
+corecmd_bin_entry_type(test_lockdown_none_t)
diff --git a/tests/Makefile b/tests/Makefile
index 1cdb1ac33875..096bbb472c51 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -78,6 +78,10 @@  SUBDIRS+=module_load
 endif
 endif
 
+ifeq ($(shell grep -q lockdown $(POLDEV)/include/support/all_perms.spt && echo true),true)
+SUBDIRS += lockdown
+endif
+
 ifeq ($(DISTRO),RHEL4)
     SUBDIRS:=$(filter-out bounds dyntrace dyntrans inet_socket mmap nnp_nosuid overlay unix_socket, $(SUBDIRS))
 endif
diff --git a/tests/lockdown/Makefile b/tests/lockdown/Makefile
new file mode 100644
index 000000000000..e7c006f270c5
--- /dev/null
+++ b/tests/lockdown/Makefile
@@ -0,0 +1,2 @@ 
+all:
+clean:
diff --git a/tests/lockdown/test b/tests/lockdown/test
new file mode 100755
index 000000000000..0b81cb16c1a6
--- /dev/null
+++ b/tests/lockdown/test
@@ -0,0 +1,42 @@ 
+#!/usr/bin/perl
+
+use Test;
+BEGIN { plan tests => 8 }
+
+# everything is allowed
+$result =
+  system "runcon -t test_lockdown_all_t -- head /dev/mem > /dev/null 2>&1";
+ok( $result, 0 );
+
+$result =
+  system "runcon -t test_lockdown_all_t -- head /proc/kcore > /dev/null 2>&1";
+ok( $result, 0 );
+
+# only integrity operations allowed
+$result = system
+  "runcon -t test_lockdown_integrity_t -- head /dev/mem > /dev/null 2>&1";
+ok( $result, 0 );
+
+$result = system
+  "runcon -t test_lockdown_integrity_t -- head /proc/kcore > /dev/null 2>&1";
+ok($result);
+
+# only confidentiality operations allowed
+$result = system
+  "runcon -t test_lockdown_confidentiality_t -- head /dev/mem > /dev/null 2>&1";
+ok($result);
+
+$result = system
+"runcon -t test_lockdown_confidentiality_t -- head /proc/kcore > /dev/null 2>&1";
+ok( $result, 0 );
+
+# nothing is allowed
+$result =
+  system "runcon -t test_lockdown_none_t -- head /dev/mem > /dev/null 2>&1";
+ok($result);
+
+$result =
+  system "runcon -t test_lockdown_none_t -- head /proc/kcore > /dev/null 2>&1";
+ok($result);
+
+exit;