mirror of https://github.com/docker/cli.git
51 lines
1.7 KiB
Go
51 lines
1.7 KiB
Go
/*
|
|
Copyright The containerd 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.
|
|
*/
|
|
|
|
package ttrpc
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
)
|
|
|
|
// Handshaker defines the interface for connection handshakes performed on the
|
|
// server or client when first connecting.
|
|
type Handshaker interface {
|
|
// Handshake should confirm or decorate a connection that may be incoming
|
|
// to a server or outgoing from a client.
|
|
//
|
|
// If this returns without an error, the caller should use the connection
|
|
// in place of the original connection.
|
|
//
|
|
// The second return value can contain credential specific data, such as
|
|
// unix socket credentials or TLS information.
|
|
//
|
|
// While we currently only have implementations on the server-side, this
|
|
// interface should be sufficient to implement similar handshakes on the
|
|
// client-side.
|
|
Handshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error)
|
|
}
|
|
|
|
type handshakerFunc func(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error)
|
|
|
|
func (fn handshakerFunc) Handshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error) {
|
|
return fn(ctx, conn)
|
|
}
|
|
|
|
func noopHandshake(ctx context.Context, conn net.Conn) (net.Conn, interface{}, error) {
|
|
return conn, nil, nil
|
|
}
|