public void CanSetAndGetMutexSecurity ()
{
if (PlatformID.Win32NT != Environment.OSVersion.Platform) {
Assert.Ignore (); return;
}
MutexAccessRule rule; SecurityIdentifier sid;
AuthorizationRuleCollection rulesA, rulesB, rulesC;
bool createdNew; MutexSecurity security;
string name = @"Local\MonoTestMutex";
using (Mutex mutex = new Mutex(false, name, out createdNew)) {
Assert.IsTrue (createdNew);
security = mutex.GetAccessControl ();
rulesA = security.GetAccessRules (true, false, typeof (SecurityIdentifier));
Assert.AreNotEqual (0, rulesA.Count);
// Contrary to what you'd expect, these classes only try to persist sections that
// that were *changed*. Awful, eh? To be fair, if you retrieve and modify it's fine.
security = new MutexSecurity ();
mutex.SetAccessControl (security);
security = mutex.GetAccessControl ();
rulesB = security.GetAccessRules (true, false, typeof (SecurityIdentifier));
Assert.AreEqual (rulesA.Count, rulesB.Count);
// And here's our dummy change. Observe...
sid = new SecurityIdentifier( "S-1-5-12-3456-7890");
rule = new MutexAccessRule (sid, MutexRights.Synchronize, AccessControlType.Allow);
security = new MutexSecurity ();
security.RemoveAccessRuleSpecific (rule);
mutex.SetAccessControl (security);
security = mutex.GetAccessControl ();
rulesC = security.GetAccessRules (true, false, typeof (SecurityIdentifier));
Assert.AreEqual (0, rulesC.Count);
}
}
private static void ShowSecurity(MutexSecurity security)
{
Console.WriteLine("\r\nAccess rules:\r\n");
foreach (MutexAccessRule ar in
security.GetAccessRules(true, true, typeof(NTAccount)))
{
Console.WriteLine(" User: {0}", ar.IdentityReference);
Console.WriteLine(" Type: {0}", ar.AccessControlType);
Console.WriteLine(" Rights: {0}", ar.MutexRights);
Console.WriteLine();
}
}