func TestAgentForward(t *testing.T) {
	server := newServer(t)
	defer server.Shutdown()
	conn := server.Dial(clientConfig())
	defer conn.Close()

	keyring := agent.NewKeyring()
	keyring.Add(testPrivateKeys["dsa"], nil, "")
	pub := testPublicKeys["dsa"]

	sess, err := conn.NewSession()
	if err != nil {
		t.Fatalf("NewSession: %v", err)
	}
	if err := agent.RequestAgentForwarding(sess); err != nil {
		t.Fatalf("RequestAgentForwarding: %v", err)
	}

	if err := agent.ForwardToAgent(conn, keyring); err != nil {
		t.Fatalf("SetupForwardKeyring: %v", err)
	}
	out, err := sess.CombinedOutput("ssh-add -L")
	if err != nil {
		t.Fatalf("running ssh-add: %v, out %s", err, out)
	}
	key, _, _, _, err := ssh.ParseAuthorizedKey(out)
	if err != nil {
		t.Fatalf("ParseAuthorizedKey(%q): %v", out, err)
	}

	if !bytes.Equal(key.Marshal(), pub.Marshal()) {
		t.Fatalf("got key %s, want %s", ssh.MarshalAuthorizedKey(key), ssh.MarshalAuthorizedKey(pub))
	}
}
Exemple #2
0
func renderHostLine(addr string, key gossh.PublicKey) []byte {
	keyByte := gossh.MarshalAuthorizedKey(key)
	// allocate line space in advance
	length := len(addr) + 1 + len(keyByte)
	line := make([]byte, 0, length)

	w := bytes.NewBuffer(line)
	w.Write([]byte(addr))
	w.WriteByte(' ')
	w.Write(keyByte)
	return w.Bytes()
}
// newServer returns a new mock ssh server.
func newServer(t *testing.T) *server {
	if testing.Short() {
		t.Skip("skipping test due to -short")
	}
	dir, err := ioutil.TempDir("", "sshtest")
	if err != nil {
		t.Fatal(err)
	}
	f, err := os.Create(filepath.Join(dir, "sshd_config"))
	if err != nil {
		t.Fatal(err)
	}
	err = configTmpl.Execute(f, map[string]string{
		"Dir": dir,
	})
	if err != nil {
		t.Fatal(err)
	}
	f.Close()

	for k, v := range testdata.PEMBytes {
		filename := "id_" + k
		writeFile(filepath.Join(dir, filename), v)
		writeFile(filepath.Join(dir, filename+".pub"), ssh.MarshalAuthorizedKey(testPublicKeys[k]))
	}

	return &server{
		t:          t,
		configfile: f.Name(),
		cleanup: func() {
			if err := os.RemoveAll(dir); err != nil {
				t.Error(err)
			}
		},
	}
}