public static object QueryContextAttributes(SSPIInterface secModule, 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 = secModule.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: // Fall-through to RemoteCertificate is intentional. 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", LoggingHash.ObjectToString(attribute)); return attribute; }
public static object QueryContextAttributes(SSPIInterface secModule, SafeDeleteContext securityContext, Interop.SspiCli.ContextAttribute contextAttribute, out int errorCode) { if (NetEventSource.IsEnabled) NetEventSource.Enter(null, contextAttribute); int nativeBlockSize = IntPtr.Size; Type handleType = null; switch (contextAttribute) { case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_SIZES: nativeBlockSize = SecPkgContext_Sizes.SizeOf; break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_STREAM_SIZES: nativeBlockSize = SecPkgContext_StreamSizes.SizeOf; break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_NAMES: handleType = typeof(SafeFreeContextBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_PACKAGE_INFO: handleType = typeof(SafeFreeContextBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_NEGOTIATION_INFO: handleType = typeof(SafeFreeContextBuffer); nativeBlockSize = Marshal.SizeOf<SecPkgContext_NegotiationInfoW>(); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_CLIENT_SPECIFIED_TARGET: handleType = typeof(SafeFreeContextBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_REMOTE_CERT_CONTEXT: handleType = typeof(SafeFreeCertContext); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_LOCAL_CERT_CONTEXT: handleType = typeof(SafeFreeCertContext); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_ISSUER_LIST_EX: nativeBlockSize = Marshal.SizeOf<Interop.SspiCli.SecPkgContext_IssuerListInfoEx>(); handleType = typeof(SafeFreeContextBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_CONNECTION_INFO: nativeBlockSize = Marshal.SizeOf<SecPkgContext_ConnectionInfo>(); break; default: throw new ArgumentException(SR.Format(SR.net_invalid_enum, nameof(contextAttribute)), nameof(contextAttribute)); } SafeHandle sspiHandle = null; object attribute = null; try { var nativeBuffer = new byte[nativeBlockSize]; errorCode = secModule.QueryContextAttributes(securityContext, contextAttribute, nativeBuffer, handleType, out sspiHandle); if (errorCode != 0) { if (NetEventSource.IsEnabled) NetEventSource.Exit(null, $"ERROR = {ErrorDescription(errorCode)}"); return null; } switch (contextAttribute) { case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_SIZES: attribute = new SecPkgContext_Sizes(nativeBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_STREAM_SIZES: attribute = new SecPkgContext_StreamSizes(nativeBuffer); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_NAMES: attribute = Marshal.PtrToStringUni(sspiHandle.DangerousGetHandle()); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_PACKAGE_INFO: attribute = new SecurityPackageInfoClass(sspiHandle, 0); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_NEGOTIATION_INFO: unsafe { fixed (void* ptr = nativeBuffer) { attribute = new NegotiationInfoClass(sspiHandle, Marshal.ReadInt32(new IntPtr(ptr), SecPkgContext_NegotiationInfoW.NegotiationStateOffest)); } } break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_CLIENT_SPECIFIED_TARGET: attribute = Marshal.PtrToStringUni(sspiHandle.DangerousGetHandle()); break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_LOCAL_CERT_CONTEXT: // Fall-through to RemoteCertificate is intentional. case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_REMOTE_CERT_CONTEXT: attribute = sspiHandle; sspiHandle = null; break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_ISSUER_LIST_EX: attribute = new Interop.SspiCli.SecPkgContext_IssuerListInfoEx(sspiHandle, nativeBuffer); sspiHandle = null; break; case Interop.SspiCli.ContextAttribute.SECPKG_ATTR_CONNECTION_INFO: attribute = new SecPkgContext_ConnectionInfo(nativeBuffer); break; default: // Will return null. break; } } finally { if (sspiHandle != null) { sspiHandle.Dispose(); } } if (NetEventSource.IsEnabled) NetEventSource.Exit(null, attribute); return attribute; }