void InitializeClient(out byte[] clientBlob, byte[] serverBlob, out bool continueProcessing)
{
clientBlob = null;
continueProcessing = true;
SecBufferDesc clientBufferDesc = new SecBufferDesc(MAX_TOKEN_SIZE);
SECURITY_INTEGER initLifetime = new SECURITY_INTEGER(0);
int ss = -1;
try
{
uint ContextAttributes = 0;
if (serverBlob == null)
{
ss = InitializeSecurityContext(
ref outboundCredentials,
IntPtr.Zero,
targetName,
STANDARD_CONTEXT_ATTRIBUTES,
0,
SECURITY_NETWORK_DREP,
IntPtr.Zero, /* always zero first time around */
0,
out clientContext,
out clientBufferDesc,
out ContextAttributes,
out initLifetime);
}
else
{
SecBufferDesc serverBufferDesc = new SecBufferDesc(serverBlob);
try
{
ss = InitializeSecurityContext(ref outboundCredentials,
ref clientContext,
targetName,
STANDARD_CONTEXT_ATTRIBUTES,
0,
SECURITY_NETWORK_DREP,
ref serverBufferDesc,
0,
out clientContext,
out clientBufferDesc,
out ContextAttributes,
out initLifetime);
}
finally
{
serverBufferDesc.Dispose();
}
}
if ((SEC_I_COMPLETE_NEEDED == ss) ||
(SEC_I_COMPLETE_AND_CONTINUE == ss))
{
CompleteAuthToken(ref clientContext, ref clientBufferDesc);
}
if (ss != SEC_E_OK &&
ss != SEC_I_CONTINUE_NEEDED &&
ss != SEC_I_COMPLETE_NEEDED &&
ss != SEC_I_COMPLETE_AND_CONTINUE)
{
throw new MyCatException(
"InitializeSecurityContext() failed with errorcode " + ss);
}
clientBlob = clientBufferDesc.GetSecBufferByteArray();
}
finally
{
clientBufferDesc.Dispose();
}
continueProcessing = (ss != SEC_E_OK && ss != SEC_I_COMPLETE_NEEDED);
}
static extern int CompleteAuthToken(
ref SECURITY_HANDLE phContext,
ref SecBufferDesc pToken);