private static IdentityReferenceCollection TranslateToSids(IdentityReferenceCollection sourceAccounts, out bool someFailed)
{
if (sourceAccounts == null)
{
throw new ArgumentNullException(nameof(sourceAccounts));
}
if (sourceAccounts.Count == 0)
{
throw new ArgumentException(SR.Arg_EmptyCollection, nameof(sourceAccounts));
}
SafeLsaPolicyHandle LsaHandle = null;
SafeLsaMemoryHandle ReferencedDomainsPtr = null;
SafeLsaMemoryHandle SidsPtr = null;
try
{
//
// Construct an array of unicode strings
//
Interop.Advapi32.MARSHALLED_UNICODE_STRING[] Names = new Interop.Advapi32.MARSHALLED_UNICODE_STRING[sourceAccounts.Count];
int currentName = 0;
foreach (IdentityReference id in sourceAccounts)
{
NTAccount nta = id as NTAccount;
if (nta == null)
{
throw new ArgumentException(SR.Argument_ImproperType, nameof(sourceAccounts));
}
Names[currentName].Buffer = nta.ToString();
if (Names[currentName].Buffer.Length * 2 + 2 > ushort.MaxValue)
{
// this should never happen since we are already validating account name length in constructor and
// it is less than this limit
Debug.Fail("NTAccount::TranslateToSids - source account name is too long.");
throw new InvalidOperationException();
}
Names[currentName].Length = (ushort)(Names[currentName].Buffer.Length * 2);
Names[currentName].MaximumLength = (ushort)(Names[currentName].Length + 2);
currentName++;
}
//
// Open LSA policy (for lookup requires it)
//
LsaHandle = Win32.LsaOpenPolicy(null, PolicyRights.POLICY_LOOKUP_NAMES);
//
// Now perform the actual lookup
//
someFailed = false;
uint ReturnCode;
ReturnCode = Interop.Advapi32.LsaLookupNames2(LsaHandle, 0, sourceAccounts.Count, Names, out ReferencedDomainsPtr, out SidsPtr);
//
// Make a decision regarding whether it makes sense to proceed
// based on the return code and the value of the forceSuccess argument
//
if (ReturnCode == Interop.StatusOptions.STATUS_NO_MEMORY ||
ReturnCode == Interop.StatusOptions.STATUS_INSUFFICIENT_RESOURCES)
{
throw new OutOfMemoryException();
}
else if (ReturnCode == Interop.StatusOptions.STATUS_ACCESS_DENIED)
{
throw new UnauthorizedAccessException();
}
else if (ReturnCode == Interop.StatusOptions.STATUS_NONE_MAPPED ||
ReturnCode == Interop.StatusOptions.STATUS_SOME_NOT_MAPPED)
{
someFailed = true;
}
else if (ReturnCode != 0)
{
uint win32ErrorCode = Interop.Advapi32.LsaNtStatusToWinError(ReturnCode);
if (unchecked ((int)win32ErrorCode) != Interop.Errors.ERROR_TRUSTED_RELATIONSHIP_FAILURE)
{
Debug.Fail($"Interop.LsaLookupNames(2) returned unrecognized error {win32ErrorCode}");
}
throw new Win32Exception(unchecked ((int)win32ErrorCode));
}
//
// Interpret the results and generate SID objects
//
IdentityReferenceCollection Result = new IdentityReferenceCollection(sourceAccounts.Count);
if (ReturnCode == 0 || ReturnCode == Interop.StatusOptions.STATUS_SOME_NOT_MAPPED)
{
SidsPtr.Initialize((uint)sourceAccounts.Count, (uint)Marshal.SizeOf <Interop.LSA_TRANSLATED_SID2>());
Win32.InitializeReferencedDomainsPointer(ReferencedDomainsPtr);
Interop.LSA_TRANSLATED_SID2[] translatedSids = new Interop.LSA_TRANSLATED_SID2[sourceAccounts.Count];
SidsPtr.ReadArray(0, translatedSids, 0, translatedSids.Length);
for (int i = 0; i < sourceAccounts.Count; i++)
{
Interop.LSA_TRANSLATED_SID2 Lts = translatedSids[i];
//
// Only some names are recognized as NTAccount objects
//
switch ((SidNameUse)Lts.Use)
{
case SidNameUse.User:
case SidNameUse.Group:
case SidNameUse.Alias:
case SidNameUse.Computer:
case SidNameUse.WellKnownGroup:
Result.Add(new SecurityIdentifier(Lts.Sid, true));
break;
default:
someFailed = true;
Result.Add(sourceAccounts[i]);
break;
}
}
}
else
{
for (int i = 0; i < sourceAccounts.Count; i++)
{
Result.Add(sourceAccounts[i]);
}
}
return(Result);
}
finally
{
LsaHandle?.Dispose();
ReferencedDomainsPtr?.Dispose();
SidsPtr?.Dispose();
}
}
private static IdentityReferenceCollection TranslateToSids(IdentityReferenceCollection sourceAccounts, out bool someFailed)
{
if (sourceAccounts == null)
{
throw new ArgumentNullException("sourceAccounts");
}
if (sourceAccounts.Count == 0)
{
throw new ArgumentException(SR.Arg_EmptyCollection, "sourceAccounts");
}
Contract.EndContractBlock();
SafeLsaPolicyHandle LsaHandle = SafeLsaPolicyHandle.InvalidHandle;
SafeLsaMemoryHandle ReferencedDomainsPtr = SafeLsaMemoryHandle.InvalidHandle;
SafeLsaMemoryHandle SidsPtr = SafeLsaMemoryHandle.InvalidHandle;
try
{
//
// Construct an array of unicode strings
//
Interop.UNICODE_STRING[] Names = new Interop.UNICODE_STRING[sourceAccounts.Count];
int currentName = 0;
foreach (IdentityReference id in sourceAccounts)
{
NTAccount nta = id as NTAccount;
if (nta == null)
{
throw new ArgumentException(SR.Argument_ImproperType, "sourceAccounts");
}
Names[currentName].Buffer = nta.ToString();
if (Names[currentName].Buffer.Length * 2 + 2 > ushort.MaxValue)
{
// this should never happen since we are already validating account name length in constructor and
// it is less than this limit
Debug.Assert(false, "NTAccount::TranslateToSids - source account name is too long.");
throw new InvalidOperationException();
}
Names[currentName].Length = (ushort)(Names[currentName].Buffer.Length * 2);
Names[currentName].MaximumLength = (ushort)(Names[currentName].Length + 2);
currentName++;
}
//
// Open LSA policy (for lookup requires it)
//
LsaHandle = Win32.LsaOpenPolicy(null, PolicyRights.POLICY_LOOKUP_NAMES);
//
// Now perform the actual lookup
//
someFailed = false;
uint ReturnCode;
ReturnCode = Interop.mincore.LsaLookupNames2(LsaHandle, 0, sourceAccounts.Count, Names, ref ReferencedDomainsPtr, ref SidsPtr);
//
// Make a decision regarding whether it makes sense to proceed
// based on the return code and the value of the forceSuccess argument
//
if (ReturnCode == Interop.StatusOptions.STATUS_NO_MEMORY ||
ReturnCode == Interop.StatusOptions.STATUS_INSUFFICIENT_RESOURCES)
{
throw new OutOfMemoryException();
}
else if (ReturnCode == Interop.StatusOptions.STATUS_ACCESS_DENIED)
{
throw new UnauthorizedAccessException();
}
else if (ReturnCode == Interop.StatusOptions.STATUS_NONE_MAPPED ||
ReturnCode == Interop.StatusOptions.STATUS_SOME_NOT_MAPPED)
{
someFailed = true;
}
else if (ReturnCode != 0)
{
int win32ErrorCode = Interop.mincore.RtlNtStatusToDosError(unchecked((int)ReturnCode));
if (win32ErrorCode != Interop.mincore.Errors.ERROR_TRUSTED_RELATIONSHIP_FAILURE)
{
Debug.Assert(false, string.Format(CultureInfo.InvariantCulture, "Interop.LsaLookupNames(2) returned unrecognized error {0}", win32ErrorCode));
}
throw new Exception(Interop.mincore.GetMessage(win32ErrorCode));
}
//
// Interpret the results and generate SID objects
//
IdentityReferenceCollection Result = new IdentityReferenceCollection(sourceAccounts.Count);
if (ReturnCode == 0 || ReturnCode == Interop.StatusOptions.STATUS_SOME_NOT_MAPPED)
{
SidsPtr.Initialize((uint)sourceAccounts.Count, (uint)Marshal.SizeOf<Interop.LSA_TRANSLATED_SID2>());
Win32.InitializeReferencedDomainsPointer(ReferencedDomainsPtr);
Interop.LSA_TRANSLATED_SID2[] translatedSids = new Interop.LSA_TRANSLATED_SID2[sourceAccounts.Count];
SidsPtr.ReadArray(0, translatedSids, 0, translatedSids.Length);
for (int i = 0; i < sourceAccounts.Count; i++)
{
Interop.LSA_TRANSLATED_SID2 Lts = translatedSids[i];
//
// Only some names are recognized as NTAccount objects
//
switch ((SidNameUse)Lts.Use)
{
case SidNameUse.User:
case SidNameUse.Group:
case SidNameUse.Alias:
case SidNameUse.Computer:
case SidNameUse.WellKnownGroup:
Result.Add(new SecurityIdentifier(Lts.Sid, true));
break;
default:
someFailed = true;
Result.Add(sourceAccounts[i]);
break;
}
}
}
else
{
for (int i = 0; i < sourceAccounts.Count; i++)
{
Result.Add(sourceAccounts[i]);
}
}
return Result;
}
finally
{
LsaHandle.Dispose();
ReferencedDomainsPtr.Dispose();
SidsPtr.Dispose();
}
}
