public static MessageQueueAccessRights GetAccessMask(QueuePath queuePath, string userName)
{
var sid = TranslateUserNameToSid(userName);
var gchSecurityDescriptor = GetSecurityDescriptorHandle(queuePath, (int)SecurityInformation.Dacl);
var ace = GetAce(gchSecurityDescriptor.AddrOfPinnedObject(), sid);
var aceMask = ace.Mask;
gchSecurityDescriptor.Free();
return(aceMask);
}
private static GCHandle GetSecurityDescriptorHandle(QueuePath queuePath, int securityInformation)
{
byte[] securityDescriptorBytes;
int length;
int lengthNeeded;
uint result;
string formatName = queuePath.ToString();
result = Security.MQGetQueueSecurity(formatName, securityInformation, IntPtr.Zero, 0, out lengthNeeded);
if (result != Security.MQ_ERROR_SECURITY_DESCRIPTOR_TOO_SMALL)
{
string message = "There was an error calling MQGetQueueSecurity."
+ Environment.NewLine
+ "Error Number: " + result.ToString()
+ Environment.NewLine
+ "Error Message: " + Security.GetErrorMessage(result);
throw new Exception(message);
}
length = lengthNeeded;
securityDescriptorBytes = new byte[length];
IntPtr pSecurityDescriptor = new IntPtr();
GCHandle gchSecurityDescriptor = GCHandle.Alloc(securityDescriptorBytes, GCHandleType.Pinned);
pSecurityDescriptor = gchSecurityDescriptor.AddrOfPinnedObject();
result = Security.MQGetQueueSecurity(formatName, securityInformation, pSecurityDescriptor, length, out lengthNeeded);
if (result != Security.MQ_OK)
{
gchSecurityDescriptor.Free();
string message = "There was an error calling MQGetQueueSecurity to read the Security Descriptor. "
+ Environment.NewLine
+ "Error Number: " + result.ToString()
+ Environment.NewLine
+ "Error Message: " + Security.GetErrorMessage(result);
throw new Exception(message);
}
var securityDescriptor = new SECURITY_DESCRIPTOR();
Marshal.PtrToStructure(pSecurityDescriptor, securityDescriptor);
return(gchSecurityDescriptor);
}
public static string GetOwner(QueuePath queuePath)
{
IntPtr pOwner;
bool ownerDefaulted;
var gchSecurityDescriptor = GetSecurityDescriptorHandle(queuePath, (int)SecurityInformation.Owner);
Security.GetSecurityDescriptorOwner(gchSecurityDescriptor.AddrOfPinnedObject(), out pOwner, out ownerDefaulted);
var ownerSid = new SecurityIdentifier(pOwner);
string ownerUserName = TranslateSidToUserName(ownerSid);
gchSecurityDescriptor.Free();
return(ownerUserName);
}
private static GCHandle GetSecurityDescriptorHandle(QueuePath queuePath, int securityInformation)
{
byte[] securityDescriptorBytes;
int length;
int lengthNeeded;
uint result;
string formatName = queuePath.ToString();
result = Security.MQGetQueueSecurity(formatName, securityInformation, IntPtr.Zero, 0, out lengthNeeded);
if (result != Security.MQ_ERROR_SECURITY_DESCRIPTOR_TOO_SMALL)
{
string message = "There was an error calling MQGetQueueSecurity."
+ Environment.NewLine
+ "Error Number: " + result.ToString()
+ Environment.NewLine
+ "Error Message: " + Security.GetErrorMessage(result);
throw new Exception(message);
}
length = lengthNeeded;
securityDescriptorBytes = new byte[length];
IntPtr pSecurityDescriptor = new IntPtr();
GCHandle gchSecurityDescriptor = GCHandle.Alloc(securityDescriptorBytes, GCHandleType.Pinned);
pSecurityDescriptor = gchSecurityDescriptor.AddrOfPinnedObject();
result = Security.MQGetQueueSecurity(formatName, securityInformation, pSecurityDescriptor, length, out lengthNeeded);
if (result != Security.MQ_OK)
{
gchSecurityDescriptor.Free();
string message = "There was an error calling MQGetQueueSecurity to read the Security Descriptor. "
+ Environment.NewLine
+ "Error Number: " + result.ToString()
+ Environment.NewLine
+ "Error Message: " + Security.GetErrorMessage(result);
throw new Exception(message);
}
var securityDescriptor = new SECURITY_DESCRIPTOR();
Marshal.PtrToStructure(pSecurityDescriptor, securityDescriptor);
return gchSecurityDescriptor;
}
public static string GetOwner(QueuePath queuePath)
{
IntPtr pOwner;
bool ownerDefaulted;
var gchSecurityDescriptor = GetSecurityDescriptorHandle(queuePath, (int)SecurityInformation.Owner);
Security.GetSecurityDescriptorOwner(gchSecurityDescriptor.AddrOfPinnedObject(), out pOwner, out ownerDefaulted);
var ownerSid = new SecurityIdentifier(pOwner);
string ownerUserName = TranslateSidToUserName(ownerSid);
gchSecurityDescriptor.Free();
return ownerUserName;
}
public static MessageQueueAccessRights GetAccessMask(QueuePath queuePath, string userName)
{
var sid = TranslateUserNameToSid(userName);
var gchSecurityDescriptor = GetSecurityDescriptorHandle(queuePath, (int)SecurityInformation.Dacl);
var ace = GetAce(gchSecurityDescriptor.AddrOfPinnedObject(), sid);
var aceMask = ace.Mask;
gchSecurityDescriptor.Free();
return aceMask;
}
