public unsafe int QueryContextChannelBinding(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute attribute, out SafeFreeContextBufferChannelBinding refHandle)
{
refHandle = SafeFreeContextBufferChannelBinding.CreateEmptyHandle();
// Bindings is on the stack, so there's no need for a fixed block.
Bindings bindings = new Bindings();
return(SafeFreeContextBufferChannelBinding.QueryContextChannelBinding(phContext, attribute, &bindings, refHandle));
}
private static int SetContextAttributes_SECURITY(
SafeDeleteContext phContext,
Interop.Secur32.ContextAttribute contextAttribute,
byte[] buffer)
{
try
{
bool ignore = false;
phContext.DangerousAddRef(ref ignore);
return(Interop.Secur32.SetContextAttributesW(ref phContext._handle, contextAttribute, buffer, buffer.Length));
}
finally
{
phContext.DangerousRelease();
}
}
private unsafe static int QueryContextAttributes_SECURITY(
SafeDeleteContext phContext,
Interop.Secur32.ContextAttribute contextAttribute,
byte *buffer,
SafeHandle refHandle)
{
int status = (int)Interop.SecurityStatus.InvalidHandle;
try
{
bool ignore = false;
phContext.DangerousAddRef(ref ignore);
status = Interop.Secur32.QueryContextAttributesW(ref phContext._handle, contextAttribute, buffer);
}
finally
{
phContext.DangerousRelease();
}
if (status == 0 && refHandle != null)
{
if (refHandle is SafeFreeContextBuffer)
{
((SafeFreeContextBuffer)refHandle).Set(*(IntPtr *)buffer);
}
else
{
((SafeFreeCertContext)refHandle).Set(*(IntPtr *)buffer);
}
}
if (status != 0 && refHandle != null)
{
refHandle.SetHandleAsInvalid();
}
return(status);
}
private unsafe int QueryContextAttributes(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute attribute, byte[] buffer, Type handleType, out SafeHandle refHandle)
{
refHandle = null;
if (handleType != null)
{
if (handleType == typeof(SafeFreeContextBuffer))
{
refHandle = SafeFreeContextBuffer.CreateEmptyHandle();
}
else if (handleType == typeof(SafeFreeCertContext))
{
refHandle = new SafeFreeCertContext();
}
else
{
throw new ArgumentException(SR.Format(SR.SSPIInvalidHandleType, handleType.FullName), "handleType");
}
}
fixed(byte *bufferPtr = buffer)
{
return(SafeFreeContextBuffer.QueryContextAttributes(phContext, attribute, bufferPtr, refHandle));
}
}
private object QueryContextAttributes(SafeDeleteContext securityContext, Interop.Secur32.ContextAttribute contextAttribute, out int errorCode)
{
GlobalLog.Enter("QueryContextAttributes", contextAttribute.ToString());
int nativeBlockSize = IntPtr.Size;
Type handleType = null;
switch (contextAttribute)
{
case Interop.Secur32.ContextAttribute.Sizes:
nativeBlockSize = SecSizes.SizeOf;
break;
case Interop.Secur32.ContextAttribute.StreamSizes:
nativeBlockSize = StreamSizes.SizeOf;
break;
case Interop.Secur32.ContextAttribute.Names:
handleType = typeof(SafeFreeContextBuffer);
break;
case Interop.Secur32.ContextAttribute.PackageInfo:
handleType = typeof(SafeFreeContextBuffer);
break;
case Interop.Secur32.ContextAttribute.NegotiationInfo:
handleType = typeof(SafeFreeContextBuffer);
nativeBlockSize = Marshal.SizeOf <NegotiationInfo>();
break;
case Interop.Secur32.ContextAttribute.ClientSpecifiedSpn:
handleType = typeof(SafeFreeContextBuffer);
break;
case Interop.Secur32.ContextAttribute.RemoteCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case Interop.Secur32.ContextAttribute.LocalCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case Interop.Secur32.ContextAttribute.IssuerListInfoEx:
nativeBlockSize = Marshal.SizeOf <Interop.Secur32.IssuerListInfoEx>();
handleType = typeof(SafeFreeContextBuffer);
break;
case Interop.Secur32.ContextAttribute.ConnectionInfo:
nativeBlockSize = Marshal.SizeOf <SslConnectionInfo>();
break;
default:
throw new ArgumentException(SR.Format(SR.net_invalid_enum, "ContextAttribute"), "contextAttribute");
}
SafeHandle SspiHandle = null;
object attribute = null;
try
{
byte[] nativeBuffer = new byte[nativeBlockSize];
errorCode = QueryContextAttributes(securityContext, contextAttribute, nativeBuffer, handleType, out SspiHandle);
if (errorCode != 0)
{
GlobalLog.Leave("Win32:QueryContextAttributes", "ERROR = " + ErrorDescription(errorCode));
return(null);
}
switch (contextAttribute)
{
case Interop.Secur32.ContextAttribute.Sizes:
attribute = new SecSizes(nativeBuffer);
break;
case Interop.Secur32.ContextAttribute.StreamSizes:
attribute = new StreamSizes(nativeBuffer);
break;
case Interop.Secur32.ContextAttribute.Names:
attribute = Marshal.PtrToStringUni(SspiHandle.DangerousGetHandle());
break;
case Interop.Secur32.ContextAttribute.PackageInfo:
attribute = new SecurityPackageInfoClass(SspiHandle, 0);
break;
case Interop.Secur32.ContextAttribute.NegotiationInfo:
unsafe
{
fixed(void *ptr = nativeBuffer)
{
attribute = new NegotiationInfoClass(SspiHandle, Marshal.ReadInt32(new IntPtr(ptr), NegotiationInfo.NegotiationStateOffest));
}
}
break;
case Interop.Secur32.ContextAttribute.ClientSpecifiedSpn:
attribute = Marshal.PtrToStringUni(SspiHandle.DangerousGetHandle());
break;
case Interop.Secur32.ContextAttribute.LocalCertificate:
goto case Interop.Secur32.ContextAttribute.RemoteCertificate;
case Interop.Secur32.ContextAttribute.RemoteCertificate:
attribute = SspiHandle;
SspiHandle = null;
break;
case Interop.Secur32.ContextAttribute.IssuerListInfoEx:
attribute = new Interop.Secur32.IssuerListInfoEx(SspiHandle, nativeBuffer);
SspiHandle = null;
break;
case Interop.Secur32.ContextAttribute.ConnectionInfo:
attribute = new SslConnectionInfo(nativeBuffer);
break;
default:
// Will return null.
break;
}
}
finally
{
if (SspiHandle != null)
{
SspiHandle.Dispose();
}
}
GlobalLog.Leave("QueryContextAttributes", Logging.ObjectToString(attribute));
return(attribute);
}
public int QueryContextChannelBinding(SafeDeleteContext context, Interop.Secur32.ContextAttribute attribute, out SafeFreeContextBufferChannelBinding binding)
{
// Querying an auth SSP for a CBT doesn't make sense
binding = null;
throw new NotSupportedException();
}
//
// After PInvoke call the method will fix the refHandle.handle with the returned value.
// The caller is responsible for creating a correct SafeHandle template or null can be passed if no handle is returned.
//
// This method switches between three non-interruptible helper methods. (This method can't be both non-interruptible and
// reference imports from all three DLLs - doing so would cause all three DLLs to try to be bound to.)
//
public unsafe static int QueryContextAttributes(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute contextAttribute, byte *buffer, SafeHandle refHandle)
{
return(QueryContextAttributes_SECURITY(phContext, contextAttribute, buffer, refHandle));
}
public static int SetContextAttributes(
SafeDeleteContext phContext,
Interop.Secur32.ContextAttribute contextAttribute, byte[] buffer)
{
return(SetContextAttributes_SECURITY(phContext, contextAttribute, buffer));
}
private unsafe static int QueryContextChannelBinding_SECURITY(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute contextAttribute, Bindings *buffer, SafeFreeContextBufferChannelBinding refHandle)
{
int status = (int)Interop.SecurityStatus.InvalidHandle;
// SCHANNEL only supports SECPKG_ATTR_ENDPOINT_BINDINGS and SECPKG_ATTR_UNIQUE_BINDINGS which
// map to our enum ChannelBindingKind.Endpoint and ChannelBindingKind.Unique.
if (contextAttribute != Interop.Secur32.ContextAttribute.EndpointBindings &&
contextAttribute != Interop.Secur32.ContextAttribute.UniqueBindings)
{
return(status);
}
try
{
bool ignore = false;
phContext.DangerousAddRef(ref ignore);
status = Interop.Secur32.QueryContextAttributesW(ref phContext._handle, contextAttribute, buffer);
}
finally
{
phContext.DangerousRelease();
}
if (status == 0 && refHandle != null)
{
refHandle.Set((*buffer).pBindings);
refHandle._size = (*buffer).BindingsLength;
}
if (status != 0 && refHandle != null)
{
refHandle.SetHandleAsInvalid();
}
return(status);
}
public unsafe static int QueryContextChannelBinding(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute contextAttribute, Bindings *buffer, SafeFreeContextBufferChannelBinding refHandle)
{
return(QueryContextChannelBinding_SECURITY(phContext, contextAttribute, buffer, refHandle));
}
public int SetContextAttributes(SafeDeleteContext phContext, Interop.Secur32.ContextAttribute attribute, byte[] buffer)
{
return(SafeFreeContextBuffer.SetContextAttributes(phContext, attribute, buffer));
}
public static object QueryContextAttributes(SSPIInterface secModule, SafeDeleteContext securityContext, Interop.Secur32.ContextAttribute contextAttribute)
{
int errorCode;
return(QueryContextAttributes(secModule, securityContext, contextAttribute, out errorCode));
}
public static SafeFreeContextBufferChannelBinding QueryContextChannelBinding(SSPIInterface secModule, SafeDeleteContext securityContext, Interop.Secur32.ContextAttribute contextAttribute)
{
GlobalLog.Enter("QueryContextChannelBinding", contextAttribute.ToString());
SafeFreeContextBufferChannelBinding result;
int errorCode = secModule.QueryContextChannelBinding(securityContext, contextAttribute, out result);
if (errorCode != 0)
{
GlobalLog.Leave("QueryContextChannelBinding", "ERROR = " + ErrorDescription(errorCode));
return(null);
}
GlobalLog.Leave("QueryContextChannelBinding", Logging.HashString(result));
return(result);
}
public int SetContextAttributes(SafeDeleteContext context, Interop.Secur32.ContextAttribute attribute, byte[] buffer)
{
throw NotImplemented.ByDesignWithMessage(SR.net_MethodNotImplementedException);
}
