diff options
Diffstat (limited to 'meta-security/lib/oeqa/runtime/smack.py')
| -rw-r--r-- | meta-security/lib/oeqa/runtime/smack.py | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/meta-security/lib/oeqa/runtime/smack.py b/meta-security/lib/oeqa/runtime/smack.py deleted file mode 100644 index 96af443b8..000000000 --- a/meta-security/lib/oeqa/runtime/smack.py +++ /dev/null @@ -1,589 +0,0 @@ -import unittest -import re -import os -import string -from oeqa.oetest import oeRuntimeTest, skipModule -from oeqa.utils.decorators import * - -def get_files_dir(): - """Get directory of supporting files""" - pkgarch = oeRuntimeTest.tc.d.getVar('MACHINE', True) - deploydir = oeRuntimeTest.tc.d.getVar('DEPLOY_DIR', True) - return os.path.join(deploydir, "files", "target", pkgarch) - -MAX_LABEL_LEN = 255 -LABEL = "a" * MAX_LABEL_LEN - -def setUpModule(): - if not oeRuntimeTest.hasFeature('smack'): - skipModule( - "smack module skipped: " - "target doesn't have smack in DISTRO_FEATURES") - -class SmackBasicTest(oeRuntimeTest): - ''' base smack test ''' - def setUp(self): - status, output = self.target.run( - "grep smack /proc/mounts | awk '{print $2}'") - self.smack_path = output - self.files_dir = os.path.join( - os.path.abspath(os.path.dirname(__file__)), 'files') - self.uid = 1000 - status,output = self.target.run("cat /proc/self/attr/current") - self.current_label = output.strip() - -class SmackAccessLabel(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_add_access_label(self): - ''' Test if chsmack can correctly set a SMACK label ''' - filename = "/tmp/test_access_label" - self.target.run("touch %s" %filename) - status, output = self.target.run("chsmack -a %s %s" %(LABEL, filename)) - self.assertEqual( - status, 0, - "Cannot set smack access label. " - "Status and output: %d %s" %(status, output)) - status, output = self.target.run("chsmack %s" %filename) - self.target.run("rm %s" %filename) - m = re.search('(?<=access=")\S+(?=")', output) - if m is None: - self.fail("Did not find access attribute") - else: - label_retrieved = m .group(0) - self.assertEqual( - LABEL, label_retrieved, - "label not set correctly. expected and gotten: " - "%s %s" %(LABEL,label_retrieved)) - -class SmackExecLabel(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_add_exec_label(self): - '''Test if chsmack can correctly set a SMACK Exec label''' - filename = "/tmp/test_exec_label" - self.target.run("touch %s" %filename) - status, output = self.target.run("chsmack -e %s %s" %(LABEL, filename)) - self.assertEqual( - status, 0, - "Cannot set smack exec label. " - "Status and output: %d %s" %(status, output)) - status, output = self.target.run("chsmack %s" %filename) - self.target.run("rm %s" %filename) - m= re.search('(?<=execute=")\S+(?=")', output) - if m is None: - self.fail("Did not find execute attribute") - else: - label_retrieved = m.group(0) - self.assertEqual( - LABEL, label_retrieved, - "label not set correctly. expected and gotten: " + - "%s %s" %(LABEL,label_retrieved)) - -class SmackMmapLabel(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_add_mmap_label(self): - '''Test if chsmack can correctly set a SMACK mmap label''' - filename = "/tmp/test_exec_label" - self.target.run("touch %s" %filename) - status, output = self.target.run("chsmack -m %s %s" %(LABEL, filename)) - self.assertEqual( - status, 0, - "Cannot set smack mmap label. " - "Status and output: %d %s" %(status, output)) - status, output = self.target.run("chsmack %s" %filename) - self.target.run("rm %s" %filename) - m = re.search('(?<=mmap=")\S+(?=")', output) - if m is None: - self.fail("Did not find mmap attribute") - else: - label_retrieved = m.group(0) - self.assertEqual( - LABEL, label_retrieved, - "label not set correctly. expected and gotten: " + - "%s %s" %(LABEL,label_retrieved)) - -class SmackTransmutable(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_add_transmutable(self): - '''Test if chsmack can correctly set a SMACK transmutable mode''' - - directory = "~/test_transmutable" - self.target.run("mkdir -p %s" %directory) - status, output = self.target.run("chsmack -t %s" %directory) - self.assertEqual(status, 0, "Cannot set smack transmutable. " - "Status and output: %d %s" %(status, output)) - status, output = self.target.run("chsmack %s" %directory) - self.target.run("rmdir %s" %directory) - m = re.search('(?<=transmute=")\S+(?=")', output) - if m is None: - self.fail("Did not find transmute attribute") - else: - label_retrieved = m.group(0) - self.assertEqual( - "TRUE", label_retrieved, - "label not set correctly. expected and gotten: " + - "%s %s" %(LABEL,label_retrieved)) - -class SmackChangeSelfLabelPrivilege(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_privileged_change_self_label(self): - '''Test if privileged process (with CAP_MAC_ADMIN privilege) - can change its label. - ''' - - status, output = self.target.run("ls /tmp/notroot.py") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'notroot.py'), - "/tmp/notroot.py") - - labelf = "/proc/self/attr/current" - command = "/bin/sh -c 'echo PRIVILEGED >%s; cat %s'" %(labelf, labelf) - - status, output = self.target.run( - "python /tmp/notroot.py 0 %s %s" %(self.current_label, command)) - - self.assertIn("PRIVILEGED", output, - "Privilege process did not change label.Output: %s" %output) - -class SmackChangeSelfLabelUnprivilege(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_unprivileged_change_self_label(self): - '''Test if unprivileged process (without CAP_MAC_ADMIN privilege) - cannot change its label''' - - status, output = self.target.run("ls /tmp/notroot.py") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'notroot.py'), - "/tmp/notroot.py") - - command = "/bin/sh -c 'echo %s >/proc/self/attr/current'" %LABEL - status, output = self.target.run( - "python /tmp/notroot.py %d %s %s" - %(self.uid, self.current_label, command) + - " 2>&1 | grep 'Operation not permitted'" ) - - self.assertEqual( - status, 0, - "Unprivileged process should not be able to change its label") - - -class SmackChangeFileLabelPrivilege(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_unprivileged_change_file_label(self): - '''Test if unprivileged process cannot change file labels''' - - status, chsmack = self.target.run("which chsmack") - status, touch = self.target.run("which touch") - filename = "/tmp/test_unprivileged_change_file_label" - - status, output = self.target.run("ls /tmp/notroot.py") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'notroot.py'), - "/tmp/notroot.py") - - self.target.run("python /tmp/notroot.py %d %s %s %s" %(self.uid, self.current_label, touch, filename)) - status, output = self.target.run( - "python /tmp/notroot.py " + - "%d unprivileged %s -a %s %s 2>&1 " %(self.uid, chsmack, LABEL, filename) + - "| grep 'Operation not permitted'" ) - - self.target.run("rm %s" %filename) - self.assertEqual( - status, 0, - "Unprivileged process changed label for %s" %filename) - -class SmackLoadRule(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_load_smack_rule(self): - '''Test if new smack access rules can be loaded''' - - # old 23 character format requires special spaces formatting - # 12345678901234567890123456789012345678901234567890123 - ruleA="TheOne TheOther rwxat" - ruleB="TheOne TheOther r----" - clean="TheOne TheOther -----" - modeA = "rwxat" - modeB = "r" - - status, output = self.target.run( - 'echo -n "%s" > %s/load' %(ruleA, self.smack_path)) - status, output = self.target.run( - 'cat %s/load | grep "^TheOne" | grep " TheOther "' %self.smack_path) - self.assertEqual(status, 0, "Rule A was not added") - mode = list(filter(bool, output.split(" ")))[2].strip() - self.assertEqual( - mode, modeA, - "Mode A was not set correctly; mode: %s" %mode) - - status, output = self.target.run( - 'echo -n "%s" > %s/load' %(ruleB, self.smack_path)) - status, output = self.target.run( - 'cat %s/load | grep "^TheOne" | grep " TheOther "' %self.smack_path) - mode = list(filter(bool, output.split(" ")))[2].strip() - self.assertEqual( - mode, modeB, - "Mode B was not set correctly; mode: %s" %mode) - - self.target.run('echo -n "%s" > %s/load' %(clean, self.smack_path)) - - -class SmackOnlycap(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_smack_onlycap(self): - '''Test if smack onlycap label can be set - - test needs to change the running label of the current process, - so whole test takes places on image - ''' - status, output = self.target.run("ls /tmp/test_smack_onlycap.sh") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'test_smack_onlycap.sh'), - "/tmp/test_smack_onlycap.sh") - - status, output = self.target.run("sh /tmp/test_smack_onlycap.sh") - self.assertEqual(status, 0, output) - -class SmackNetlabel(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smack_netlabel(self): - - test_label="191.191.191.191 TheOne" - expected_label="191.191.191.191/32 TheOne" - - status, output = self.target.run( - "echo -n '%s' > %s/netlabel" %(test_label, self.smack_path)) - self.assertEqual( - status, 0, - "Netlabel /32 could not be set. Output: %s" %output) - - status, output = self.target.run("cat %s/netlabel" %self.smack_path) - self.assertIn( - expected_label, output, - "Did not find expected label in output: %s" %output) - - test_label="253.253.253.0/24 TheOther" - status, output = self.target.run( - "echo -n '%s' > %s/netlabel" %(test_label, self.smack_path)) - self.assertEqual( - status, 0, - "Netlabel /24 could not be set. Output: %s" %output) - - status, output = self.target.run("cat %s/netlabel" %self.smack_path) - self.assertIn( - test_label, output, - "Did not find expected label in output: %s" %output) - -class SmackCipso(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smack_cipso(self): - '''Test if smack cipso rules can be set''' - # 12345678901234567890123456789012345678901234567890123456 - ruleA="TheOneA 2 0 " - ruleB="TheOneB 3 1 55 " - ruleC="TheOneC 4 2 17 33 " - - status, output = self.target.run( - "echo -n '%s' > %s/cipso" %(ruleA, self.smack_path)) - self.assertEqual(status, 0, - "Could not set cipso label A. Ouput: %s" %output) - - status, output = self.target.run( - "cat %s/cipso | grep '^TheOneA'" %self.smack_path) - self.assertEqual(status, 0, "Cipso rule A was not set") - self.assertIn(" 2", output, "Rule A was not set correctly") - - status, output = self.target.run( - "echo -n '%s' > %s/cipso" %(ruleB, self.smack_path)) - self.assertEqual(status, 0, - "Could not set cipso label B. Ouput: %s" %output) - - status, output = self.target.run( - "cat %s/cipso | grep '^TheOneB'" %self.smack_path) - self.assertEqual(status, 0, "Cipso rule B was not set") - self.assertIn("/55", output, "Rule B was not set correctly") - - status, output = self.target.run( - "echo -n '%s' > %s/cipso" %(ruleC, self.smack_path)) - self.assertEqual( - status, 0, - "Could not set cipso label C. Ouput: %s" %output) - - status, output = self.target.run( - "cat %s/cipso | grep '^TheOneC'" %self.smack_path) - self.assertEqual(status, 0, "Cipso rule C was not set") - self.assertIn("/17,33", output, "Rule C was not set correctly") - -class SmackDirect(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smack_direct(self): - status, initial_direct = self.target.run( - "cat %s/direct" %self.smack_path) - - test_direct="17" - status, output = self.target.run( - "echo '%s' > %s/direct" %(test_direct, self.smack_path)) - self.assertEqual(status, 0 , - "Could not set smack direct. Output: %s" %output) - status, new_direct = self.target.run("cat %s/direct" %self.smack_path) - # initial label before checking - status, output = self.target.run( - "echo '%s' > %s/direct" %(initial_direct, self.smack_path)) - self.assertEqual( - test_direct, new_direct.strip(), - "Smack direct label does not match.") - - -class SmackAmbient(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smack_ambient(self): - test_ambient = "test_ambient" - status, initial_ambient = self.target.run("cat %s/ambient" %self.smack_path) - status, output = self.target.run( - "echo '%s' > %s/ambient" %(test_ambient, self.smack_path)) - self.assertEqual(status, 0, - "Could not set smack ambient. Output: %s" %output) - - status, output = self.target.run("cat %s/ambient" %self.smack_path) - # Filter '\x00', which is sometimes added to the ambient label - new_ambient = ''.join(filter(lambda x: x in string.printable, output)) - initial_ambient = ''.join(filter(lambda x: x in string.printable, initial_ambient)) - status, output = self.target.run( - "echo '%s' > %s/ambient" %(initial_ambient, self.smack_path)) - self.assertEqual( - test_ambient, new_ambient.strip(), - "Ambient label does not match") - - -class SmackloadBinary(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smackload(self): - '''Test if smackload command works''' - rule="testobject testsubject rwx" - - status, output = self.target.run("echo -n '%s' > /tmp/rules" %rule) - status, output = self.target.run("smackload /tmp/rules") - self.assertEqual( - status, 0, - "Smackload failed to load rule. Output: %s" %output) - - status, output = self.target.run( - "cat %s/load | grep '%s'" %(self.smack_path, rule)) - self.assertEqual(status, 0, "Smackload rule was loaded correctly") - -class SmackcipsoBinary(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_smackcipso(self): - '''Test if smackcipso command works''' - # 12345678901234567890123456789012345678901234567890123456 - rule="cipsolabel 2 2 " - - status, output = self.target.run("echo '%s' | smackcipso" %rule) - self.assertEqual( - status, 0, - "Smackcipso failed to load rule. Output: %s" %output) - - status, output = self.target.run( - "cat %s/cipso | grep 'cipsolabel'" %self.smack_path) - self.assertEqual(status, 0, "Smackload rule was loaded correctly") - self.assertIn( - "2/2", output, - "Rule was not set correctly. Got: %s" %output) - -class SmackEnforceFileAccess(SmackBasicTest): - @skipUnlessPassed('test_ssh') - def test_smack_enforce_file_access(self): - '''Test if smack file access is enforced (rwx) - - test needs to change the running label of the current process, - so whole test takes places on image - ''' - status, output = self.target.run("ls /tmp/smack_test_file_access.sh") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'smack_test_file_access.sh'), - "/tmp/smack_test_file_access.sh") - - status, output = self.target.run("sh /tmp/smack_test_file_access.sh") - self.assertEqual(status, 0, output) - -class SmackEnforceMmap(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_smack_mmap_enforced(self): - '''Test if smack mmap access is enforced''' - raise unittest.SkipTest("Depends on mmap_test, which was removed from the layer while investigating its license.") - - # 12345678901234567890123456789012345678901234567890123456 - delr1="mmap_label mmap_test_label1 -----" - delr2="mmap_label mmap_test_label2 -----" - delr3="mmap_file_label mmap_test_label1 -----" - delr4="mmap_file_label mmap_test_label2 -----" - - RuleA="mmap_label mmap_test_label1 rw---" - RuleB="mmap_label mmap_test_label2 r--at" - RuleC="mmap_file_label mmap_test_label1 rw---" - RuleD="mmap_file_label mmap_test_label2 rwxat" - - mmap_label="mmap_label" - file_label="mmap_file_label" - test_file = "/tmp/smack_test_mmap" - self.target.copy_to(os.path.join(get_files_dir(), "mmap_test"), "/tmp/") - mmap_exe = "/tmp/mmap_test" - status, echo = self.target.run("which echo") - status, output = self.target.run("ls /tmp/notroot.py") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'notroot.py'), - "/tmp/notroot.py") - status, output = self.target.run( - "python /tmp/notroot.py %d %s %s 'test' > %s" \ - %(self.uid, self.current_label, echo, test_file)) - status, output = self.target.run("ls %s" %test_file) - self.assertEqual(status, 0, "Could not create mmap test file") - self.target.run("chsmack -m %s %s" %(file_label, test_file)) - self.target.run("chsmack -e %s %s" %(mmap_label, mmap_exe)) - - # test with no rules with mmap label or exec label as subject - # access should be granted - self.target.run('echo -n "%s" > %s/load' %(delr1, self.smack_path)) - self.target.run('echo -n "%s" > %s/load' %(delr2, self.smack_path)) - self.target.run('echo -n "%s" > %s/load' %(delr3, self.smack_path)) - self.target.run('echo -n "%s" > %s/load' %(delr4, self.smack_path)) - status, output = self.target.run("%s %s 0 2" % (mmap_exe, test_file)) - self.assertEqual( - status, 0, - "Should have mmap access without rules. Output: %s" %output) - - # add rules that do not match access required - self.target.run('echo -n "%s" > %s/load' %(RuleA, self.smack_path)) - self.target.run('echo -n "%s" > %s/load' %(RuleB, self.smack_path)) - status, output = self.target.run("%s %s 0 2" % (mmap_exe, test_file)) - self.assertNotEqual( - status, 0, - "Should not have mmap access with unmatching rules. " + - "Output: %s" %output) - self.assertIn( - "Permission denied", output, - "Mmap access should be denied with unmatching rules") - - # add rule to match only partially (one way) - self.target.run('echo -n "%s" > %s/load' %(RuleC, self.smack_path)) - status, output = self.target.run("%s %s 0 2" %(mmap_exe, test_file)) - self.assertNotEqual( - status, 0, - "Should not have mmap access with partial matching rules. " + - "Output: %s" %output) - self.assertIn( - "Permission denied", output, - "Mmap access should be denied with partial matching rules") - - # add rule to match fully - self.target.run('echo -n "%s" > %s/load' %(RuleD, self.smack_path)) - status, output = self.target.run("%s %s 0 2" %(mmap_exe, test_file)) - self.assertEqual( - status, 0, - "Should have mmap access with full matching rules." + - "Output: %s" %output) - -class SmackEnforceTransmutable(SmackBasicTest): - - def test_smack_transmute_dir(self): - '''Test if smack transmute attribute works - - test needs to change the running label of the current process, - so whole test takes places on image - ''' - test_dir = "/tmp/smack_transmute_dir" - label="transmute_label" - status, initial_label = self.target.run("cat /proc/self/attr/current") - - self.target.run("mkdir -p %s" %test_dir) - self.target.run("chsmack -a %s %s" %(label, test_dir)) - self.target.run("chsmack -t %s" %test_dir) - self.target.run( - "echo -n '%s %s rwxat' | smackload" %(initial_label, label) ) - - self.target.run("touch %s/test" %test_dir) - status, output = self.target.run("chsmack %s/test" %test_dir) - self.assertIn( - 'access="%s"' %label, output, - "Did not get expected label. Output: %s" %output) - - -class SmackTcpSockets(SmackBasicTest): - def test_smack_tcp_sockets(self): - '''Test if smack is enforced on tcp sockets - - whole test takes places on image, depends on tcp_server/tcp_client''' - - self.target.copy_to(os.path.join(get_files_dir(), "tcp_client"), "/tmp/") - self.target.copy_to(os.path.join(get_files_dir(), "tcp_server"), "/tmp/") - status, output = self.target.run("ls /tmp/test_smack_tcp_sockets.sh") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'test_smack_tcp_sockets.sh'), - "/tmp/test_smack_tcp_sockets.sh") - - status, output = self.target.run("sh /tmp/test_smack_tcp_sockets.sh") - self.assertEqual(status, 0, output) - -class SmackUdpSockets(SmackBasicTest): - def test_smack_udp_sockets(self): - '''Test if smack is enforced on udp sockets - - whole test takes places on image, depends on udp_server/udp_client''' - - self.target.copy_to(os.path.join(get_files_dir(), "udp_client"), "/tmp/") - self.target.copy_to(os.path.join(get_files_dir(), "udp_server"), "/tmp/") - status, output = self.target.run("ls /tmp/test_smack_udp_sockets.sh") - if status != 0: - self.target.copy_to( - os.path.join(self.files_dir, 'test_smack_udp_sockets.sh'), - "/tmp/test_smack_udp_sockets.sh") - - status, output = self.target.run("sh /tmp/test_smack_udp_sockets.sh") - self.assertEqual(status, 0, output) - -class SmackFileLabels(SmackBasicTest): - - @skipUnlessPassed('test_ssh') - def test_smack_labels(self): - '''Check for correct Smack labels.''' - expected = ''' -/tmp/ access="*" -/etc/ access="System::Shared" transmute="TRUE" -/etc/passwd access="System::Shared" -/etc/terminfo access="System::Shared" transmute="TRUE" -/etc/skel/ access="System::Shared" transmute="TRUE" -/etc/skel/.profile access="System::Shared" -/var/log/ access="System::Log" transmute="TRUE" -/var/tmp/ access="*" -''' - files = ' '.join([x.split()[0] for x in expected.split('\n') if x]) - files_wildcard = ' '.join([x + '/*' for x in files.split()]) - # Auxiliary information. - status, output = self.target.run( - 'set -x; mount; ls -l -d %s; find %s | xargs ls -d -l; find %s | xargs chsmack' % ( - ' '.join([x.rstrip('/') for x in files.split()]), files, files - ) - ) - msg = "File status:\n" + output - status, output = self.target.run('chsmack %s' % files) - self.assertEqual( - status, 0, msg="status and output: %s and %s\n%s" % (status,output, msg)) - self.longMessage = True - self.maxDiff = None - self.assertEqual(output.strip().split('\n'), expected.strip().split('\n'), msg=msg) |