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|
// CommonSecurityDescriptorTest.cs - NUnit Test Cases for CommonSecurityDescriptor
//
// Authors:
// James Bellinger <jfb@zer7.com>
//
// Copyright (C) 2012 James Bellinger
using System;
using System.Collections.Generic;
using System.Security.AccessControl;
using System.Security.Principal;
using NUnit.Framework;
namespace MonoTests.System.Security.AccessControl
{
[TestFixture]
public class CommonSecurityDescriptorTest
{
[Test]
public void DefaultOwnerAndGroup ()
{
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
Assert.IsNull (csd.Owner);
Assert.IsNull (csd.Group);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative, csd.ControlFlags);
}
[Test]
public void GetBinaryForm ()
{
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
Assert.AreEqual (20, csd.BinaryLength);
byte[] binaryForm = new byte[csd.BinaryLength];
csd.GetBinaryForm (binaryForm, 0);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative,
csd.ControlFlags);
// The default 'Allow Everyone Full Access' serializes as NOT having a
// DiscretionaryAcl, as the above demonstrates (byte 3 is 0 not 4).
Assert.AreEqual (new byte[20] {
1, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}, binaryForm);
// Changing SystemAcl protection does nothing special.
csd.SetSystemAclProtection (true, true);
Assert.AreEqual (20, csd.BinaryLength);
// Modifying the DiscretionaryAcl (even effective no-ops like this) causes serialization.
csd.SetDiscretionaryAclProtection (false, true);
Assert.AreEqual (48, csd.BinaryLength);
}
[Test, ExpectedException (typeof (ArgumentOutOfRangeException))]
public void GetBinaryFormOffset ()
{
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
csd.GetBinaryForm (new byte[csd.BinaryLength], 1);
}
[Test, ExpectedException (typeof (ArgumentNullException))]
public void GetBinaryFormNull ()
{
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
csd.GetBinaryForm (null, 0);
}
[Test]
public void AefaModifiedFlagIsStoredOnDiscretionaryAcl ()
{
CommonSecurityDescriptor csd1, csd2;
// Incidentally this shows the DiscretionaryAcl is NOT cloned.
csd1 = new CommonSecurityDescriptor (false, false, ControlFlags.None, null, null, null, null);
csd2 = new CommonSecurityDescriptor (false, false, ControlFlags.None, null, null, null, csd1.DiscretionaryAcl);
Assert.AreSame (csd1.DiscretionaryAcl, csd2.DiscretionaryAcl);
Assert.AreEqual ("", csd1.GetSddlForm (AccessControlSections.Access));
csd2.SetDiscretionaryAclProtection (false, true);
Assert.AreEqual ("D:(A;;0xffffffff;;;WD)", csd1.GetSddlForm (AccessControlSections.Access));
Assert.AreEqual ("D:(A;;0xffffffff;;;WD)", csd2.GetSddlForm (AccessControlSections.Access));
}
[Test]
public void AefaRoundtrip ()
{
CommonSecurityDescriptor csd;
csd = new CommonSecurityDescriptor (false, false, ControlFlags.None, null, null, null, null);
Assert.AreEqual (20, csd.BinaryLength);
byte[] binaryForm1 = new byte[csd.BinaryLength];
csd.GetBinaryForm (binaryForm1, 0);
csd = new CommonSecurityDescriptor (false, false, new RawSecurityDescriptor (binaryForm1, 0));
byte[] binaryForm2 = new byte[csd.BinaryLength];
csd.GetBinaryForm (binaryForm2, 0);
Assert.AreEqual (binaryForm1, binaryForm2);
}
[Test]
public void GetSddlFormAefaRemovesDacl ()
{
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
Assert.AreEqual (1, csd.DiscretionaryAcl.Count);
Assert.AreEqual ("", csd.GetSddlForm (AccessControlSections.Access));
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative,
csd.ControlFlags);
Assert.AreSame (csd.DiscretionaryAcl, csd.DiscretionaryAcl);
Assert.AreNotSame (csd.DiscretionaryAcl[0], csd.DiscretionaryAcl[0]);
Assert.AreEqual ("", csd.GetSddlForm (AccessControlSections.Access));
csd.SetDiscretionaryAclProtection (false, true);
Assert.AreEqual ("D:(A;;0xffffffff;;;WD)", csd.GetSddlForm (AccessControlSections.Access));
Assert.AreSame (csd.DiscretionaryAcl, csd.DiscretionaryAcl);
Assert.AreNotSame (csd.DiscretionaryAcl[0], csd.DiscretionaryAcl[0]);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative,
csd.ControlFlags);
csd.SetDiscretionaryAclProtection (true, true);
Assert.AreEqual (1, csd.DiscretionaryAcl.Count);
Assert.AreEqual ("D:P(A;;0xffffffff;;;WD)", csd.GetSddlForm (AccessControlSections.Access));
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.DiscretionaryAclProtected
| ControlFlags.SelfRelative,
csd.ControlFlags);
csd.SetDiscretionaryAclProtection (false, false);
Assert.AreEqual (1, csd.DiscretionaryAcl.Count);
Assert.AreEqual ("D:(A;;0xffffffff;;;WD)", csd.GetSddlForm (AccessControlSections.Access));
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative,
csd.ControlFlags);
}
[Test, ExpectedException (typeof (ArgumentException))]
public void ContainerAndDSConsistencyEnforcedA ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
DiscretionaryAcl dacl = new DiscretionaryAcl (true, true, 0);
new CommonSecurityDescriptor (true, false, ControlFlags.None, userSid, groupSid, null, dacl);
}
[Test, ExpectedException (typeof (ArgumentException))]
public void ContainerAndDSConsistencyEnforcedB ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
SystemAcl sacl = new SystemAcl (false, false, 0);
new CommonSecurityDescriptor (true, false, ControlFlags.None, userSid, groupSid, sacl, null);
}
[Test, ExpectedException (typeof (ArgumentException))]
public void ContainerAndDSConsistencyEnforcedInSetter ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(true, false, ControlFlags.None, userSid, groupSid, null, null);
csd.DiscretionaryAcl = new DiscretionaryAcl (true, true, 0);
}
[Test]
public void DefaultDaclIsAllowEveryoneFullAccess ()
{
SecurityIdentifier userSid = new SecurityIdentifier ("SY");
SecurityIdentifier groupSid = new SecurityIdentifier ("BA");
SecurityIdentifier everyoneSid = new SecurityIdentifier ("WD");
CommonSecurityDescriptor csd; DiscretionaryAcl dacl; CommonAce ace;
csd = new CommonSecurityDescriptor (false, false, ControlFlags.None, userSid, groupSid, null, null);
dacl = csd.DiscretionaryAcl;
Assert.AreEqual (1, dacl.Count);
ace = (CommonAce)dacl [0];
Assert.AreEqual (-1, ace.AccessMask);
Assert.AreEqual (AceFlags.None, ace.AceFlags);
Assert.AreEqual (AceType.AccessAllowed, ace.AceType);
Assert.AreEqual (20, ace.BinaryLength);
Assert.IsFalse (ace.IsCallback);
Assert.IsFalse (ace.IsInherited);
Assert.AreEqual (0, ace.OpaqueLength);
Assert.AreEqual (ace.SecurityIdentifier, everyoneSid);
csd = new CommonSecurityDescriptor (true, false, ControlFlags.None, userSid, groupSid, null, null);
dacl = csd.DiscretionaryAcl;
Assert.AreEqual (1, dacl.Count);
ace = (CommonAce)dacl [0];
Assert.AreEqual (-1, ace.AccessMask);
Assert.AreEqual (AceFlags.ObjectInherit | AceFlags.ContainerInherit, ace.AceFlags);
Assert.AreEqual (AceType.AccessAllowed, ace.AceType);
Assert.AreEqual (20, ace.BinaryLength);
Assert.IsFalse (ace.IsCallback);
Assert.IsFalse (ace.IsInherited);
Assert.AreEqual (0, ace.OpaqueLength);
Assert.AreEqual (ace.SecurityIdentifier, everyoneSid);
}
[Test]
public void PurgeDefaultDacl ()
{
SecurityIdentifier userSid = new SecurityIdentifier ("SY");
SecurityIdentifier groupSid = new SecurityIdentifier ("BA");
SecurityIdentifier everyoneSid = new SecurityIdentifier ("WD");
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
DiscretionaryAcl dacl = csd.DiscretionaryAcl;
Assert.AreEqual (1, dacl.Count);
csd.PurgeAccessControl (userSid);
Assert.AreEqual (1, dacl.Count);
csd.PurgeAccessControl (everyoneSid);
Assert.AreEqual (0, dacl.Count);
}
[Test]
public void PurgeNullSaclWithoutError ()
{
SecurityIdentifier userSid = new SecurityIdentifier ("SY");
SecurityIdentifier groupSid = new SecurityIdentifier ("BA");
CommonSecurityDescriptor csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
csd.PurgeAudit (userSid);
Assert.IsNull (csd.SystemAcl);
}
[Test]
public void OwnerAndGroupAreReferences ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
CommonSecurityDescriptor csd;
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
Assert.AreSame (groupSid, csd.Group);
Assert.AreSame (userSid, csd.Owner);
}
[Test]
public void ProtectionChangesFlags ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
CommonSecurityDescriptor csd;
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative, csd.ControlFlags);
csd.SetDiscretionaryAclProtection (true, false);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.DiscretionaryAclProtected
| ControlFlags.SelfRelative, csd.ControlFlags);
csd.SetSystemAclProtection (true, false); // despite not being *present*
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.DiscretionaryAclProtected
| ControlFlags.SystemAclProtected
| ControlFlags.SelfRelative, csd.ControlFlags);
}
[Test]
public void ProtectionPreserveInheritanceIgnoredUnlessProtectedTrue ()
{
CommonSecurityDescriptor descriptor;
descriptor = ProtectionPreserveInheritanceIgnoredUnlessProtectedTrueDescriptor();
Assert.AreEqual (2, descriptor.DiscretionaryAcl.Count);
descriptor = ProtectionPreserveInheritanceIgnoredUnlessProtectedTrueDescriptor();
descriptor.SetDiscretionaryAclProtection (true, false);
Assert.AreEqual (1, descriptor.DiscretionaryAcl.Count);
descriptor = ProtectionPreserveInheritanceIgnoredUnlessProtectedTrueDescriptor();
descriptor.SetDiscretionaryAclProtection (false, false);
Assert.AreEqual (2, descriptor.DiscretionaryAcl.Count);
descriptor = ProtectionPreserveInheritanceIgnoredUnlessProtectedTrueDescriptor();
descriptor.SetDiscretionaryAclProtection (true, true);
Assert.AreEqual (2, descriptor.DiscretionaryAcl.Count);
descriptor.SetDiscretionaryAclProtection (false, false);
Assert.AreEqual (2, descriptor.DiscretionaryAcl.Count);
descriptor.SetDiscretionaryAclProtection (false, true);
Assert.AreEqual (2, descriptor.DiscretionaryAcl.Count);
descriptor.SetDiscretionaryAclProtection (true, false);
Assert.AreEqual (1, descriptor.DiscretionaryAcl.Count);
}
static CommonSecurityDescriptor ProtectionPreserveInheritanceIgnoredUnlessProtectedTrueDescriptor()
{
SecurityIdentifier sid = new SecurityIdentifier ("WD");
RawAcl acl = new RawAcl (GenericAcl.AclRevision, 1);
acl.InsertAce (0, new CommonAce (AceFlags.None, AceQualifier.AccessDenied, 1, sid, false, null));
acl.InsertAce (1, new CommonAce (AceFlags.Inherited, AceQualifier.AccessAllowed, 1, sid, false, null));
CommonSecurityDescriptor descriptor = new CommonSecurityDescriptor
(false, false, ControlFlags.None, null, null, null, null);
descriptor.DiscretionaryAcl = new DiscretionaryAcl (false, false, acl);
return descriptor;
}
[Test]
public void DaclPresent ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
CommonSecurityDescriptor csd;
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
Assert.IsNotNull (csd.DiscretionaryAcl);
Assert.IsTrue (csd.IsDiscretionaryAclCanonical);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative, csd.ControlFlags);
Assert.AreEqual (1, csd.DiscretionaryAcl.Count);
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.DiscretionaryAclPresent, userSid, groupSid, null, null);
Assert.IsNotNull (csd.DiscretionaryAcl);
Assert.IsTrue (csd.IsDiscretionaryAclCanonical);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative, csd.ControlFlags);
DiscretionaryAcl dacl = new DiscretionaryAcl (false, false, 0);
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, dacl);
Assert.AreSame (dacl, csd.DiscretionaryAcl);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative, csd.ControlFlags);
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.DiscretionaryAclPresent, userSid, groupSid, null, dacl);
Assert.AreSame (dacl, csd.DiscretionaryAcl);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative, csd.ControlFlags);
}
[Test]
public void SaclPresent ()
{
SecurityIdentifier userSid = new SecurityIdentifier (WellKnownSidType.LocalSystemSid, null);
SecurityIdentifier groupSid = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null);
SystemAcl sacl = new SystemAcl (false, false, 0);
CommonSecurityDescriptor csd;
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, null, null);
Assert.IsNull (csd.SystemAcl);
Assert.IsTrue (csd.IsSystemAclCanonical);
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.SystemAclPresent, userSid, groupSid, null, null);
Assert.IsNull (csd.SystemAcl);
Assert.IsTrue (csd.IsSystemAclCanonical);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent | ControlFlags.SelfRelative, csd.ControlFlags);
csd = new CommonSecurityDescriptor
(false, false, ControlFlags.None, userSid, groupSid, sacl, null);
Assert.AreSame (sacl, csd.SystemAcl);
Assert.IsTrue (csd.IsSystemAclCanonical);
Assert.AreEqual (0, csd.SystemAcl.Count);
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SystemAclPresent
| ControlFlags.SelfRelative, csd.ControlFlags);
csd.SystemAcl = null;
Assert.AreEqual (ControlFlags.DiscretionaryAclPresent
| ControlFlags.SelfRelative, csd.ControlFlags);
}
}
}
|
