//-------------------------------------------------------------------
internal unsafe static int AcceptSecurityContext(
ref SafeFreeCredentials inCredentials,
ref SafeDeleteContext refContext,
Interop.SspiCli.ContextFlags inFlags,
Interop.SspiCli.Endianness endianness,
SecurityBuffer inSecBuffer,
SecurityBuffer[] inSecBuffers,
SecurityBuffer outSecBuffer,
ref Interop.SspiCli.ContextFlags outFlags)
{
#if TRACE_VERBOSE
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SafeDeleteContext::AcceptSecurityContex");
GlobalLog.Print(" credential = " + inCredentials.ToString());
GlobalLog.Print(" refContext = " + LoggingHash.ObjectToString(refContext));
GlobalLog.Print(" inFlags = " + inFlags);
if (inSecBuffers == null)
{
GlobalLog.Print(" inSecBuffers = (null)");
}
else
{
GlobalLog.Print(" inSecBuffers[] = length:" + inSecBuffers.Length);
}
}
#endif
if (outSecBuffer == null)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SafeDeleteContext::AcceptSecurityContext()|outSecBuffer != null");
}
Debug.Fail("SafeDeleteContext::AcceptSecurityContext()|outSecBuffer != null");
}
if (inSecBuffer != null && inSecBuffers != null)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SafeDeleteContext::AcceptSecurityContext()|inSecBuffer == null || inSecBuffers == null");
}
Debug.Fail("SafeDeleteContext::AcceptSecurityContext()|outSecBuffer != null");
}
if (inCredentials == null)
{
throw new ArgumentNullException("inCredentials");
}
Interop.SspiCli.SecurityBufferDescriptor inSecurityBufferDescriptor = null;
if (inSecBuffer != null)
{
inSecurityBufferDescriptor = new Interop.SspiCli.SecurityBufferDescriptor(1);
}
else if (inSecBuffers != null)
{
inSecurityBufferDescriptor = new Interop.SspiCli.SecurityBufferDescriptor(inSecBuffers.Length);
}
Interop.SspiCli.SecurityBufferDescriptor outSecurityBufferDescriptor = new Interop.SspiCli.SecurityBufferDescriptor(1);
// Actually, this is returned in outFlags.
bool isSspiAllocated = (inFlags & Interop.SspiCli.ContextFlags.AllocateMemory) != 0 ? true : false;
int errorCode = -1;
Interop.SspiCli.SSPIHandle contextHandle = new Interop.SspiCli.SSPIHandle();
if (refContext != null)
{
contextHandle = refContext._handle;
}
// These are pinned user byte arrays passed along with SecurityBuffers.
GCHandle[] pinnedInBytes = null;
GCHandle pinnedOutBytes = new GCHandle();
// Optional output buffer that may need to be freed.
SafeFreeContextBuffer outFreeContextBuffer = null;
try
{
pinnedOutBytes = GCHandle.Alloc(outSecBuffer.token, GCHandleType.Pinned);
var inUnmanagedBuffer = new Interop.SspiCli.SecurityBufferStruct[inSecurityBufferDescriptor == null ? 1 : inSecurityBufferDescriptor.Count];
fixed (void* inUnmanagedBufferPtr = inUnmanagedBuffer)
{
if (inSecurityBufferDescriptor != null)
{
// Fix Descriptor pointer that points to unmanaged SecurityBuffers.
inSecurityBufferDescriptor.UnmanagedPointer = inUnmanagedBufferPtr;
pinnedInBytes = new GCHandle[inSecurityBufferDescriptor.Count];
SecurityBuffer securityBuffer;
for (int index = 0; index < inSecurityBufferDescriptor.Count; ++index)
{
securityBuffer = inSecBuffer != null ? inSecBuffer : inSecBuffers[index];
if (securityBuffer != null)
{
// Copy the SecurityBuffer content into unmanaged place holder.
inUnmanagedBuffer[index].count = securityBuffer.size;
inUnmanagedBuffer[index].type = securityBuffer.type;
// Use the unmanaged token if it's not null; otherwise use the managed buffer.
if (securityBuffer.unmanagedToken != null)
{
inUnmanagedBuffer[index].token = securityBuffer.unmanagedToken.DangerousGetHandle();
}
else if (securityBuffer.token == null || securityBuffer.token.Length == 0)
{
inUnmanagedBuffer[index].token = IntPtr.Zero;
}
else
{
pinnedInBytes[index] = GCHandle.Alloc(securityBuffer.token, GCHandleType.Pinned);
inUnmanagedBuffer[index].token = Marshal.UnsafeAddrOfPinnedArrayElement(securityBuffer.token, securityBuffer.offset);
}
#if TRACE_VERBOSE
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SecBuffer: cbBuffer:" + securityBuffer.size + " BufferType:" + securityBuffer.type);
}
#endif
}
}
}
var outUnmanagedBuffer = new Interop.SspiCli.SecurityBufferStruct[1];
fixed (void* outUnmanagedBufferPtr = outUnmanagedBuffer)
{
// Fix Descriptor pointer that points to unmanaged SecurityBuffers.
outSecurityBufferDescriptor.UnmanagedPointer = outUnmanagedBufferPtr;
// Copy the SecurityBuffer content into unmanaged place holder.
outUnmanagedBuffer[0].count = outSecBuffer.size;
outUnmanagedBuffer[0].type = outSecBuffer.type;
if (outSecBuffer.token == null || outSecBuffer.token.Length == 0)
{
outUnmanagedBuffer[0].token = IntPtr.Zero;
}
else
{
outUnmanagedBuffer[0].token = Marshal.UnsafeAddrOfPinnedArrayElement(outSecBuffer.token, outSecBuffer.offset);
}
if (isSspiAllocated)
{
outFreeContextBuffer = SafeFreeContextBuffer.CreateEmptyHandle();
}
if (refContext == null || refContext.IsInvalid)
{
refContext = new SafeDeleteContext_SECURITY();
}
errorCode = MustRunAcceptSecurityContext_SECURITY(
ref inCredentials,
contextHandle.IsZero ? null : &contextHandle,
inSecurityBufferDescriptor,
inFlags,
endianness,
refContext,
outSecurityBufferDescriptor,
ref outFlags,
outFreeContextBuffer);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SafeDeleteContext:AcceptSecurityContext Marshalling OUT buffer");
}
// Get unmanaged buffer with index 0 as the only one passed into PInvoke.
outSecBuffer.size = outUnmanagedBuffer[0].count;
outSecBuffer.type = outUnmanagedBuffer[0].type;
if (outSecBuffer.size > 0)
{
outSecBuffer.token = new byte[outSecBuffer.size];
Marshal.Copy(outUnmanagedBuffer[0].token, outSecBuffer.token, 0, outSecBuffer.size);
}
else
{
outSecBuffer.token = null;
}
}
}
}
finally
{
if (pinnedInBytes != null)
{
for (int index = 0; index < pinnedInBytes.Length; index++)
{
if (pinnedInBytes[index].IsAllocated)
{
pinnedInBytes[index].Free();
}
}
}
if (pinnedOutBytes.IsAllocated)
{
pinnedOutBytes.Free();
}
if (outFreeContextBuffer != null)
{
outFreeContextBuffer.Dispose();
}
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SafeDeleteContext::AcceptSecurityContex() unmanaged AcceptSecurityContex()", "errorCode:0x" + errorCode.ToString("x8") + " refContext:" + LoggingHash.ObjectToString(refContext));
}
return errorCode;
}
internal Interop.SspiCli.SSPIHandle _handle; //should be always used as by ref in PInvokes parameters
protected SafeFreeCredentials() : base(IntPtr.Zero, true)
{
_handle = new Interop.SspiCli.SSPIHandle();
}
protected SafeDeleteContext() : base(IntPtr.Zero, true)
{
_handle = new Interop.SspiCli.SSPIHandle();
}
internal unsafe static int CompleteAuthToken(
ref SafeDeleteContext refContext,
SecurityBuffer[] inSecBuffers)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SafeDeleteContext::CompleteAuthToken");
GlobalLog.Print(" refContext = " + LoggingHash.ObjectToString(refContext));
#if TRACE_VERBOSE
GlobalLog.Print(" inSecBuffers[] = length:" + inSecBuffers.Length);
#endif
}
if (inSecBuffers == null)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SafeDeleteContext::CompleteAuthToken()|inSecBuffers == null");
}
Debug.Fail("SafeDeleteContext::CompleteAuthToken()|inSecBuffers == null");
}
var inSecurityBufferDescriptor = new Interop.SspiCli.SecurityBufferDescriptor(inSecBuffers.Length);
int errorCode = (int)Interop.SecurityStatus.InvalidHandle;
// These are pinned user byte arrays passed along with SecurityBuffers.
GCHandle[] pinnedInBytes = null;
var inUnmanagedBuffer = new Interop.SspiCli.SecurityBufferStruct[inSecurityBufferDescriptor.Count];
fixed (void* inUnmanagedBufferPtr = inUnmanagedBuffer)
{
// Fix Descriptor pointer that points to unmanaged SecurityBuffers.
inSecurityBufferDescriptor.UnmanagedPointer = inUnmanagedBufferPtr;
pinnedInBytes = new GCHandle[inSecurityBufferDescriptor.Count];
SecurityBuffer securityBuffer;
for (int index = 0; index < inSecurityBufferDescriptor.Count; ++index)
{
securityBuffer = inSecBuffers[index];
if (securityBuffer != null)
{
inUnmanagedBuffer[index].count = securityBuffer.size;
inUnmanagedBuffer[index].type = securityBuffer.type;
// Use the unmanaged token if it's not null; otherwise use the managed buffer.
if (securityBuffer.unmanagedToken != null)
{
inUnmanagedBuffer[index].token = securityBuffer.unmanagedToken.DangerousGetHandle();
}
else if (securityBuffer.token == null || securityBuffer.token.Length == 0)
{
inUnmanagedBuffer[index].token = IntPtr.Zero;
}
else
{
pinnedInBytes[index] = GCHandle.Alloc(securityBuffer.token, GCHandleType.Pinned);
inUnmanagedBuffer[index].token = Marshal.UnsafeAddrOfPinnedArrayElement(securityBuffer.token, securityBuffer.offset);
}
#if TRACE_VERBOSE
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SecBuffer: cbBuffer:" + securityBuffer.size + " BufferType:" + securityBuffer.type);
}
#endif
}
}
Interop.SspiCli.SSPIHandle contextHandle = new Interop.SspiCli.SSPIHandle();
if (refContext != null)
{
contextHandle = refContext._handle;
}
try
{
if (refContext == null || refContext.IsInvalid)
{
refContext = new SafeDeleteContext_SECURITY();
}
try
{
bool ignore = false;
refContext.DangerousAddRef(ref ignore);
errorCode = Interop.SspiCli.CompleteAuthToken(contextHandle.IsZero ? null : &contextHandle, inSecurityBufferDescriptor);
}
finally
{
refContext.DangerousRelease();
}
}
finally
{
if (pinnedInBytes != null)
{
for (int index = 0; index < pinnedInBytes.Length; index++)
{
if (pinnedInBytes[index].IsAllocated)
{
pinnedInBytes[index].Free();
}
}
}
}
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SafeDeleteContext::CompleteAuthToken() unmanaged CompleteAuthToken()", "errorCode:0x" + errorCode.ToString("x8") + " refContext:" + LoggingHash.ObjectToString(refContext));
}
return errorCode;
}
