public static extern UInt32 LsaLogonUser(
SafeLsaHandle LsaHandle,
NativeHelpers.LSA_STRING OriginName,
LogonType LogonType,
UInt32 AuthenticationPackage,
IntPtr AuthenticationInformation,
UInt32 AuthenticationInformationLength,
IntPtr LocalGroups,
NativeHelpers.TOKEN_SOURCE SourceContext,
out SafeLsaMemoryBuffer ProfileBuffer,
out UInt32 ProfileBufferLength,
out Luid LogonId,
out SafeNativeHandle Token,
out IntPtr Quotas,
out UInt32 SubStatus);
private static SafeNativeHandle GetS4UTokenForUser(SecurityIdentifier sid, LogonType logonType)
{
NTAccount becomeAccount = (NTAccount)sid.Translate(typeof(NTAccount));
string[] userSplit = becomeAccount.Value.Split(new char[1] {
'\\'
}, 2);
string domainName = userSplit[0];
string username = userSplit[1];
bool domainUser = domainName.ToLowerInvariant() != Environment.MachineName.ToLowerInvariant();
NativeHelpers.LSA_STRING logonProcessName = "assible";
SafeLsaHandle lsaHandle;
IntPtr securityMode;
UInt32 res = NativeMethods.LsaRegisterLogonProcess(logonProcessName, out lsaHandle, out securityMode);
if (res != 0)
{
throw new Process.Win32Exception((int)NativeMethods.LsaNtStatusToWinError(res), "LsaRegisterLogonProcess() failed");
}
using (lsaHandle)
{
NativeHelpers.LSA_STRING packageName = domainUser ? "Kerberos" : "MICROSOFT_AUTHENTICATION_PACKAGE_V1_0";
UInt32 authPackage;
res = NativeMethods.LsaLookupAuthenticationPackage(lsaHandle, packageName, out authPackage);
if (res != 0)
{
throw new Process.Win32Exception((int)NativeMethods.LsaNtStatusToWinError(res),
String.Format("LsaLookupAuthenticationPackage({0}) failed", (string)packageName));
}
int usernameLength = username.Length * sizeof(char);
int domainLength = domainName.Length * sizeof(char);
int authInfoLength = (Marshal.SizeOf(typeof(NativeHelpers.KERB_S4U_LOGON)) + usernameLength + domainLength);
IntPtr authInfo = Marshal.AllocHGlobal((int)authInfoLength);
try
{
IntPtr usernamePtr = IntPtr.Add(authInfo, Marshal.SizeOf(typeof(NativeHelpers.KERB_S4U_LOGON)));
IntPtr domainPtr = IntPtr.Add(usernamePtr, usernameLength);
// KERB_S4U_LOGON has the same structure as MSV1_0_S4U_LOGON (local accounts)
NativeHelpers.KERB_S4U_LOGON s4uLogon = new NativeHelpers.KERB_S4U_LOGON
{
MessageType = 12, // KerbS4ULogon
Flags = 0,
ClientUpn = new NativeHelpers.LSA_UNICODE_STRING
{
Length = (UInt16)usernameLength,
MaximumLength = (UInt16)usernameLength,
Buffer = usernamePtr,
},
ClientRealm = new NativeHelpers.LSA_UNICODE_STRING
{
Length = (UInt16)domainLength,
MaximumLength = (UInt16)domainLength,
Buffer = domainPtr,
},
};
Marshal.StructureToPtr(s4uLogon, authInfo, false);
Marshal.Copy(username.ToCharArray(), 0, usernamePtr, username.Length);
Marshal.Copy(domainName.ToCharArray(), 0, domainPtr, domainName.Length);
Luid sourceLuid;
if (!NativeMethods.AllocateLocallyUniqueId(out sourceLuid))
{
throw new Process.Win32Exception("AllocateLocallyUniqueId() failed");
}
NativeHelpers.TOKEN_SOURCE tokenSource = new NativeHelpers.TOKEN_SOURCE
{
SourceName = "assible\0".ToCharArray(),
SourceIdentifier = sourceLuid,
};
// Only Batch or Network will work with S4U, prefer Batch but use Network if asked
LogonType lsaLogonType = logonType == LogonType.Network
? LogonType.Network
: LogonType.Batch;
SafeLsaMemoryBuffer profileBuffer;
UInt32 profileBufferLength;
Luid logonId;
SafeNativeHandle hToken;
IntPtr quotas;
UInt32 subStatus;
res = NativeMethods.LsaLogonUser(lsaHandle, logonProcessName, lsaLogonType, authPackage,
authInfo, (UInt32)authInfoLength, IntPtr.Zero, tokenSource, out profileBuffer, out profileBufferLength,
out logonId, out hToken, out quotas, out subStatus);
if (res != 0)
{
throw new Process.Win32Exception((int)NativeMethods.LsaNtStatusToWinError(res),
String.Format("LsaLogonUser() failed with substatus {0}", subStatus));
}
profileBuffer.Dispose();
return(hToken);
}
finally
{
Marshal.FreeHGlobal(authInfo);
}
}
}
public static extern UInt32 LsaRegisterLogonProcess(
NativeHelpers.LSA_STRING LogonProcessName,
out SafeLsaHandle LsaHandle,
out IntPtr SecurityMode);
public static extern UInt32 LsaLookupAuthenticationPackage(
SafeLsaHandle LsaHandle,
NativeHelpers.LSA_STRING PackageName,
out UInt32 AuthenticationPackage);