Imported Upstream version 6.8.0.73

Former-commit-id: d18deab1b47cfd3ad8cba82b3f37d00eec2170af

mcs/class/System/Mono.Net.Security/MobileTlsProvider.cs

@@ -0,0 +1,48 @@
+#if SECURITY_DEP
+#if MONO_SECURITY_ALIAS
+extern alias MonoSecurity;
+#endif
+
+#if MONO_SECURITY_ALIAS
+using MonoSecurity::Mono.Security.Interface;
+#else
+using Mono.Security.Interface;
+#endif
+
+using System;
+using System.IO;
+using System.Net.Security;
+using System.Security.Cryptography.X509Certificates;
+
+namespace Mono.Net.Security
+{
+	abstract class MobileTlsProvider : MonoTlsProvider
+	{
+		public sealed override IMonoSslStream CreateSslStream (
+			Stream innerStream, bool leaveInnerStreamOpen,
+			MonoTlsSettings settings = null)
+		{
+			return SslStream.CreateMonoSslStream (innerStream, leaveInnerStreamOpen, this, settings);
+		}
+
+		internal abstract MobileAuthenticatedStream CreateSslStream (
+			SslStream sslStream, Stream innerStream, bool leaveInnerStreamOpen,
+			MonoTlsSettings settings);
+
+		/*
+		 * If @serverMode is true, then we're a server and want to validate a certificate
+		 * that we received from a client.
+		 *
+		 * On OS X and Mobile, the @chain will be initialized with the @certificates, but not actually built.
+		 *
+		 * Returns `true` if certificate validation has been performed and `false` to invoke the
+		 * default system validator.
+		 */
+		internal abstract bool ValidateCertificate (
+			ChainValidationHelper validator, string targetHost, bool serverMode,
+			X509CertificateCollection certificates, bool wantsChain, ref X509Chain chain,
+			ref SslPolicyErrors errors, ref int status11);
+	}
+}
+
+#endif