Example #1
0
// sshConfig returns the ssh configuration.
func sshConfig(state multistep.StateBag) (*gossh.ClientConfig, error) {
	config := state.Get("config").(*Config)
	privateKey := state.Get("ssh_private_key").(string)

	keyring := new(ssh.SimpleKeychain)
	if err := keyring.AddPEMKey(privateKey); err != nil {
		return nil, fmt.Errorf("Error setting up SSH config: %s", err)
	}

	sshConfig := &gossh.ClientConfig{
		User: config.SSHUsername,
		Auth: []gossh.ClientAuth{gossh.ClientAuthKeyring(keyring)},
	}

	return sshConfig, nil
}
func clientConfig() *ssh.ClientConfig {
	keyChecker := storedHostKey{}
	keyChecker.Add(hostKeyECDSA.PublicKey())
	keyChecker.Add(hostKeyRSA.PublicKey())
	keyChecker.Add(hostKeyDSA.PublicKey())

	kc := new(keychain)
	kc.keys = append(kc.keys, privateKey)
	config := &ssh.ClientConfig{
		User: username(),
		Auth: []ssh.ClientAuth{
			ssh.ClientAuthKeyring(kc),
		},
		HostKeyChecker: &keyChecker,
	}
	return config
}
Example #3
0
// SSHConfig returns a function that can be used for the SSH communicator
// config for connecting to the instance created over SSH using the generated
// private key.
func SSHConfig(username string) func(multistep.StateBag) (*gossh.ClientConfig, error) {
	return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
		privateKey := state.Get("privateKey").(string)

		keyring := new(ssh.SimpleKeychain)
		if err := keyring.AddPEMKey(privateKey); err != nil {
			return nil, fmt.Errorf("Error setting up SSH config: %s", err)
		}

		return &gossh.ClientConfig{
			User: username,
			Auth: []gossh.ClientAuth{
				gossh.ClientAuthKeyring(keyring),
			},
		}, nil
	}
}
Example #4
0
func (ss *ScpStorage) Connect() error {
	var err error

	clientConfig := &ssh.ClientConfig{
		User: ss.User,
		Auth: []ssh.ClientAuth{
			ssh.ClientAuthPassword(password(ss.Password)),
			ssh.ClientAuthKeyring(ss.Keychain),
		},
	}

	ss.connexion, err = ssh.Dial("tcp", ss.Endpoint, clientConfig)
	if err != nil {
		return fmt.Errorf("Failed to dial: %s", err.Error())
	}

	return nil
}
Example #5
0
func makeConfig() (config *ssh.ClientConfig, agentUnixSock net.Conn) {
	clientAuth := []ssh.ClientAuth{}

	var (
		agentKr ssh.ClientKeyring
		ok      bool
		err     error
	)

	if sshAuthSock != "" {
		for {
			agentUnixSock, err = net.Dial("unix", sshAuthSock)

			if err != nil {
				netErr := err.(net.Error)
				if netErr.Temporary() {
					time.Sleep(time.Duration(rand.Intn(100)) * time.Millisecond)
					continue
				}

				reportErrorToUser("Cannot open connection to SSH agent: " + netErr.Error())
			} else {
				authAgent := ssh.ClientAuthAgent(ssh.NewAgentClient(agentUnixSock))
				agentKr, ok = authAgent.(ssh.ClientKeyring)
				if !ok {
					reportErrorToUser("Type assertion failed: ssh.ClientAuthAgent no longer returns ssh.ClientKeyring, using fallback")
					clientAuth = append(clientAuth, authAgent)
				}
			}

			break
		}
	}

	keyring := ssh.ClientAuthKeyring(&SignerContainer{signers, agentKr})
	clientAuth = append(clientAuth, keyring)

	config = &ssh.ClientConfig{
		User: user,
		Auth: clientAuth,
	}

	return
}
Example #6
0
func SSHConfigFunc(config SSHConfig) func(multistep.StateBag) (*gossh.ClientConfig, error) {
	return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
		auth := []gossh.ClientAuth{
			gossh.ClientAuthPassword(ssh.Password(config.SSHPassword)),
			gossh.ClientAuthKeyboardInteractive(
				ssh.PasswordKeyboardInteractive(config.SSHPassword)),
		}

		if config.SSHKeyPath != "" {
			keyring, err := sshKeyToKeyring(config.SSHKeyPath)
			if err != nil {
				return nil, err
			}

			auth = append(auth, gossh.ClientAuthKeyring(keyring))
		}

		return &gossh.ClientConfig{
			User: config.SSHUser,
			Auth: auth,
		}, nil
	}
}
Example #7
0
// SSHConfig returns a function that can be used for the SSH communicator
// config for connecting to the specified host via SSH
// private_key_file has precedence over password!
func SSHConfig(username string, password string, privateKeyFile string) func(multistep.StateBag) (*gossh.ClientConfig, error) {
	return func(state multistep.StateBag) (*gossh.ClientConfig, error) {

		if privateKeyFile != "" {
			// key based auth

			bytes, err := ioutil.ReadFile(privateKeyFile)
			if err != nil {
				return nil, fmt.Errorf("Error setting up SSH config: %s", err)
			}
			privateKey := string(bytes)

			keyring := new(ssh.SimpleKeychain)
			if err := keyring.AddPEMKey(privateKey); err != nil {
				return nil, fmt.Errorf("Error setting up SSH config: %s", err)
			}

			return &gossh.ClientConfig{
				User: username,
				Auth: []gossh.ClientAuth{
					gossh.ClientAuthKeyring(keyring),
				},
			}, nil
		} else {
			// password based auth

			return &gossh.ClientConfig{
				User: username,
				Auth: []gossh.ClientAuth{
					gossh.ClientAuthPassword(ssh.Password(password)),
					gossh.ClientAuthKeyboardInteractive(ssh.PasswordKeyboardInteractive(password)),
				},
			}, nil
		}
	}
}