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+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package ssh implements an SSH server.
+
+SSH is a transport security protocol, an authentication protocol and a
+family of application protocols. The most typical application level
+protocol is a remote shell and this is specifically implemented. However,
+the multiplexed nature of SSH is exposed to users that wish to support
+others.
+
+An SSH server is represented by a Server, which manages a number of
+ServerConnections and handles authentication.
+
+ var s Server
+ s.PubKeyCallback = pubKeyAuth
+ s.PasswordCallback = passwordAuth
+
+ pemBytes, err := ioutil.ReadFile("id_rsa")
+ if err != nil {
+ panic("Failed to load private key")
+ }
+ err = s.SetRSAPrivateKey(pemBytes)
+ if err != nil {
+ panic("Failed to parse private key")
+ }
+
+Once a Server has been set up, connections can be attached.
+
+ var sConn ServerConnection
+ sConn.Server = &s
+ err = sConn.Handshake(conn)
+ if err != nil {
+ panic("failed to handshake")
+ }
+
+An SSH connection multiplexes several channels, which must be accepted themselves:
+
+
+ for {
+ channel, err := sConn.Accept()
+ if err != nil {
+ panic("error from Accept")
+ }
+
+ ...
+ }
+
+Accept reads from the connection, demultiplexes packets to their corresponding
+channels and returns when a new channel request is seen. Some goroutine must
+always be calling Accept; otherwise no messages will be forwarded to the
+channels.
+
+Channels have a type, depending on the application level protocol intended. In
+the case of a shell, the type is "session" and ServerShell may be used to
+present a simple terminal interface.
+
+ if channel.ChannelType() != "session" {
+ c.Reject(UnknownChannelType, "unknown channel type")
+ return
+ }
+ channel.Accept()
+
+ shell := NewServerShell(channel, "> ")
+ go func() {
+ defer channel.Close()
+ for {
+ line, err := shell.ReadLine()
+ if err != nil {
+ break
+ }
+ println(line)
+ }
+ return
+ }()
+*/
+package ssh