ssh

package
v1.2.1 Latest Latest
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Published: Feb 23, 2018 License: MPL-2.0 Imports: 18 Imported by: 0

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Index

Constants

This section is empty.

Variables

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var ErrHandshakeTimeout = fmt.Errorf("Timeout during SSH handshake")

ErrHandshakeTimeout is returned from New() whenever we're unable to establish an ssh connection within a certain timeframe. By default the handshake time- out period is 1 minute. You can change it with Config.HandshakeTimeout.

Functions

func BastionConnectFunc added in v0.8.0

func BastionConnectFunc(
	bProto string,
	bAddr string,
	bConf *ssh.ClientConfig,
	proto string,
	addr string) func() (net.Conn, error)

BastionConnectFunc is a convenience method for returning a function that connects to a host over a bastion connection.

func ConnectFunc added in v0.2.0

func ConnectFunc(network, addr string) func() (net.Conn, error)

ConnectFunc is a convenience method for returning a function that just uses net.Dial to communicate with the remote end that is suitable for use with the SSH communicator configuration.

func New

func New(address string, config *Config) (result *comm, err error)

Creates a new packer.Communicator implementation over SSH. This takes an already existing TCP connection and SSH configuration.

func PasswordKeyboardInteractive added in v0.1.4

func PasswordKeyboardInteractive(password string) ssh.KeyboardInteractiveChallenge

An implementation of ssh.KeyboardInteractiveChallenge that simply sends back the password for all questions. The questions are logged.

func ProxyConnectFunc added in v1.1.2

func ProxyConnectFunc(socksProxy string, socksAuth *proxy.Auth, network, addr string) func() (net.Conn, error)

ConnectFunc is a convenience method for returning a function that connects to a host using SOCKS5 proxy

Types

type Config added in v0.2.0

type Config struct {
	// The configuration of the Go SSH connection
	SSHConfig *ssh.ClientConfig

	// Connection returns a new connection. The current connection
	// in use will be closed as part of the Close method, or in the
	// case an error occurs.
	Connection func() (net.Conn, error)

	// Pty, if true, will request a pty from the remote end.
	Pty bool

	// DisableAgentForwarding, if true, will not forward the SSH agent.
	DisableAgentForwarding bool

	// HandshakeTimeout limits the amount of time we'll wait to handshake before
	// saying the connection failed.
	HandshakeTimeout time.Duration

	// UseSftp, if true, sftp will be used instead of scp for file transfers
	UseSftp bool

	// KeepAliveInterval sets how often we send a channel request to the
	// server. A value < 0 disables.
	KeepAliveInterval time.Duration

	// Timeout is how long to wait for a read or write to succeed.
	Timeout time.Duration
}

Config is the structure used to configure the SSH communicator.

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