Bumping k8s dependencies to 1.13

vendor/google.golang.org/grpc/credentials/alts/internal/common.go

@@ -0,0 +1,69 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+//go:generate ./regenerate.sh
+
+// Package internal contains common core functionality for ALTS.
+package internal
+
+import (
+	"net"
+
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/credentials"
+)
+
+const (
+	// ClientSide identifies the client in this communication.
+	ClientSide Side = iota
+	// ServerSide identifies the server in this communication.
+	ServerSide
+)
+
+// PeerNotRespondingError is returned when a peer server is not responding
+// after a channel has been established. It is treated as a temporary connection
+// error and re-connection to the server should be attempted.
+var PeerNotRespondingError = &peerNotRespondingError{}
+
+// Side identifies the party's role: client or server.
+type Side int
+
+type peerNotRespondingError struct{}
+
+// Return an error message for the purpose of logging.
+func (e *peerNotRespondingError) Error() string {
+	return "peer server is not responding and re-connection should be attempted."
+}
+
+// Temporary indicates if this connection error is temporary or fatal.
+func (e *peerNotRespondingError) Temporary() bool {
+	return true
+}
+
+// Handshaker defines a ALTS handshaker interface.
+type Handshaker interface {
+	// ClientHandshake starts and completes a client-side handshaking and
+	// returns a secure connection and corresponding auth information.
+	ClientHandshake(ctx context.Context) (net.Conn, credentials.AuthInfo, error)
+	// ServerHandshake starts and completes a server-side handshaking and
+	// returns a secure connection and corresponding auth information.
+	ServerHandshake(ctx context.Context) (net.Conn, credentials.AuthInfo, error)
+	// Close terminates the Handshaker. It should be called when the caller
+	// obtains the secure connection.
+	Close()
+}