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641 lines
18 KiB
641 lines
18 KiB
package p2p_test
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import (
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"context"
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"io"
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"net"
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"testing"
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"time"
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"github.com/fortytw2/leaktest"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/crypto/ed25519"
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"github.com/tendermint/tendermint/internal/p2p"
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"github.com/tendermint/tendermint/libs/bytes"
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)
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// transportFactory is used to set up transports for tests.
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type transportFactory func(t *testing.T) p2p.Transport
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// testTransports is a registry of transport factories for withTransports().
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var testTransports = map[string]transportFactory{}
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// withTransports is a test helper that runs a test against all transports
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// registered in testTransports.
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func withTransports(t *testing.T, tester func(*testing.T, transportFactory)) {
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t.Helper()
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for name, transportFactory := range testTransports {
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transportFactory := transportFactory
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t.Run(name, func(t *testing.T) {
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t.Cleanup(leaktest.Check(t))
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tester(t, transportFactory)
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})
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}
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}
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func TestTransport_AcceptClose(t *testing.T) {
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// Just test accept unblock on close, happy path is tested widely elsewhere.
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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// In-progress Accept should error on concurrent close.
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errCh := make(chan error, 1)
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go func() {
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time.Sleep(200 * time.Millisecond)
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errCh <- a.Close()
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}()
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_, err := a.Accept()
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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require.NoError(t, <-errCh)
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// Closed transport should return error immediately.
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_, err = a.Accept()
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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})
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}
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func TestTransport_DialEndpoints(t *testing.T) {
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ipTestCases := []struct {
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ip net.IP
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ok bool
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}{
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{net.IPv4zero, true},
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{net.IPv6zero, true},
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{nil, false},
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{net.IPv4bcast, false},
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{net.IPv4allsys, false},
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{[]byte{1, 2, 3}, false},
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{[]byte{1, 2, 3, 4, 5}, false},
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}
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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endpoints := a.Endpoints()
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require.NotEmpty(t, endpoints)
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endpoint := endpoints[0]
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// Spawn a goroutine to simply accept any connections until closed.
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go func() {
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for {
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conn, err := a.Accept()
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if err != nil {
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return
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}
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_ = conn.Close()
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}
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}()
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// Dialing self should work.
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conn, err := a.Dial(ctx, endpoint)
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require.NoError(t, err)
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require.NoError(t, conn.Close())
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// Dialing empty endpoint should error.
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_, err = a.Dial(ctx, p2p.Endpoint{})
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require.Error(t, err)
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// Dialing without protocol should error.
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noProtocol := endpoint
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noProtocol.Protocol = ""
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_, err = a.Dial(ctx, noProtocol)
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require.Error(t, err)
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// Dialing with invalid protocol should error.
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fooProtocol := endpoint
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fooProtocol.Protocol = "foo"
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_, err = a.Dial(ctx, fooProtocol)
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require.Error(t, err)
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// Tests for networked endpoints (with IP).
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if len(endpoint.IP) > 0 && endpoint.Protocol != p2p.MemoryProtocol {
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for _, tc := range ipTestCases {
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tc := tc
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t.Run(tc.ip.String(), func(t *testing.T) {
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e := endpoint
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e.IP = tc.ip
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conn, err := a.Dial(ctx, e)
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if tc.ok {
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require.NoError(t, conn.Close())
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require.NoError(t, err)
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} else {
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require.Error(t, err, "endpoint=%s", e)
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}
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})
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}
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// Non-networked endpoints should error.
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noIP := endpoint
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noIP.IP = nil
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noIP.Port = 0
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noIP.Path = "foo"
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_, err := a.Dial(ctx, noIP)
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require.Error(t, err)
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} else {
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// Tests for non-networked endpoints (no IP).
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noPath := endpoint
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noPath.Path = ""
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_, err = a.Dial(ctx, noPath)
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require.Error(t, err)
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}
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})
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}
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func TestTransport_Dial(t *testing.T) {
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// Most just tests dial failures, happy path is tested widely elsewhere.
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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require.NotEmpty(t, a.Endpoints())
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require.NotEmpty(t, b.Endpoints())
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aEndpoint := a.Endpoints()[0]
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bEndpoint := b.Endpoints()[0]
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// Context cancellation should error. We can't test timeouts since we'd
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// need a non-responsive endpoint.
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cancelCtx, cancel := context.WithCancel(ctx)
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cancel()
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_, err := a.Dial(cancelCtx, bEndpoint)
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require.Error(t, err)
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require.Equal(t, err, context.Canceled)
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// Unavailable endpoint should error.
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err = b.Close()
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require.NoError(t, err)
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_, err = a.Dial(ctx, bEndpoint)
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require.Error(t, err)
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// Dialing from a closed transport should still work.
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errCh := make(chan error, 1)
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go func() {
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conn, err := a.Accept()
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if err == nil {
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_ = conn.Close()
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}
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errCh <- err
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}()
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conn, err := b.Dial(ctx, aEndpoint)
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require.NoError(t, err)
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require.NoError(t, conn.Close())
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require.NoError(t, <-errCh)
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})
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}
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func TestTransport_Endpoints(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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// Both transports return valid and different endpoints.
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aEndpoints := a.Endpoints()
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bEndpoints := b.Endpoints()
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require.NotEmpty(t, aEndpoints)
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require.NotEmpty(t, bEndpoints)
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require.NotEqual(t, aEndpoints, bEndpoints)
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for _, endpoint := range append(aEndpoints, bEndpoints...) {
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err := endpoint.Validate()
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require.NoError(t, err, "invalid endpoint %q", endpoint)
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}
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// When closed, the transport should no longer return any endpoints.
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err := a.Close()
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require.NoError(t, err)
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require.Empty(t, a.Endpoints())
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require.NotEmpty(t, b.Endpoints())
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})
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}
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func TestTransport_Protocols(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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protocols := a.Protocols()
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endpoints := a.Endpoints()
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require.NotEmpty(t, protocols)
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require.NotEmpty(t, endpoints)
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for _, endpoint := range endpoints {
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require.Contains(t, protocols, endpoint.Protocol)
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}
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})
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}
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func TestTransport_String(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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require.NotEmpty(t, a.String())
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})
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}
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func TestConnection_Handshake(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, ba := dialAccept(t, a, b)
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// A handshake should pass the given keys and NodeInfo.
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aKey := ed25519.GenPrivKey()
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aInfo := p2p.NodeInfo{
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NodeID: p2p.NodeIDFromPubKey(aKey.PubKey()),
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ProtocolVersion: p2p.NewProtocolVersion(1, 2, 3),
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ListenAddr: "listenaddr",
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Network: "network",
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Version: "1.2.3",
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Channels: bytes.HexBytes([]byte{0xf0, 0x0f}),
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Moniker: "moniker",
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Other: p2p.NodeInfoOther{
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TxIndex: "txindex",
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RPCAddress: "rpc.domain.com",
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},
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}
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bKey := ed25519.GenPrivKey()
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bInfo := p2p.NodeInfo{NodeID: p2p.NodeIDFromPubKey(bKey.PubKey())}
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errCh := make(chan error, 1)
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go func() {
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// Must use assert due to goroutine.
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peerInfo, peerKey, err := ba.Handshake(ctx, bInfo, bKey)
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if err == nil {
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assert.Equal(t, aInfo, peerInfo)
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assert.Equal(t, aKey.PubKey(), peerKey)
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}
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errCh <- err
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}()
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peerInfo, peerKey, err := ab.Handshake(ctx, aInfo, aKey)
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require.NoError(t, err)
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require.Equal(t, bInfo, peerInfo)
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require.Equal(t, bKey.PubKey(), peerKey)
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require.NoError(t, <-errCh)
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})
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}
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func TestConnection_HandshakeCancel(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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// Handshake should error on context cancellation.
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ab, ba := dialAccept(t, a, b)
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timeoutCtx, cancel := context.WithTimeout(ctx, 1*time.Minute)
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cancel()
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_, _, err := ab.Handshake(timeoutCtx, p2p.NodeInfo{}, ed25519.GenPrivKey())
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require.Error(t, err)
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require.Equal(t, context.Canceled, err)
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_ = ab.Close()
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_ = ba.Close()
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// Handshake should error on context timeout.
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ab, ba = dialAccept(t, a, b)
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timeoutCtx, cancel = context.WithTimeout(ctx, 200*time.Millisecond)
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defer cancel()
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_, _, err = ab.Handshake(timeoutCtx, p2p.NodeInfo{}, ed25519.GenPrivKey())
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require.Error(t, err)
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require.Equal(t, context.DeadlineExceeded, err)
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_ = ab.Close()
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_ = ba.Close()
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})
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}
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func TestConnection_FlushClose(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, _ := dialAcceptHandshake(t, a, b)
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// FIXME: FlushClose should be removed (and replaced by separate Flush
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// and Close calls if necessary). We can't reliably test it, so we just
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// make sure it closes both ends and that it's idempotent.
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err := ab.FlushClose()
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require.NoError(t, err)
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_, _, err = ab.ReceiveMessage()
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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_, err = ab.SendMessage(chID, []byte("closed"))
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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err = ab.FlushClose()
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require.NoError(t, err)
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})
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}
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func TestConnection_LocalRemoteEndpoint(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, ba := dialAcceptHandshake(t, a, b)
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// Local and remote connection endpoints correspond to each other.
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require.NotEmpty(t, ab.LocalEndpoint())
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require.NotEmpty(t, ba.LocalEndpoint())
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require.Equal(t, ab.LocalEndpoint(), ba.RemoteEndpoint())
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require.Equal(t, ab.RemoteEndpoint(), ba.LocalEndpoint())
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})
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}
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func TestConnection_SendReceive(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, ba := dialAcceptHandshake(t, a, b)
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// Can send and receive a to b.
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ok, err := ab.SendMessage(chID, []byte("foo"))
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require.NoError(t, err)
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require.True(t, ok)
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ch, msg, err := ba.ReceiveMessage()
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require.NoError(t, err)
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require.Equal(t, []byte("foo"), msg)
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require.Equal(t, chID, ch)
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// Can send and receive b to a.
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_, err = ba.SendMessage(chID, []byte("bar"))
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require.NoError(t, err)
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_, msg, err = ab.ReceiveMessage()
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require.NoError(t, err)
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require.Equal(t, []byte("bar"), msg)
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// TrySendMessage also works.
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ok, err = ba.TrySendMessage(chID, []byte("try"))
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require.NoError(t, err)
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require.True(t, ok)
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ch, msg, err = ab.ReceiveMessage()
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require.NoError(t, err)
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require.Equal(t, []byte("try"), msg)
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require.Equal(t, chID, ch)
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// Connections should still be active after closing the transports.
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err = a.Close()
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require.NoError(t, err)
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err = b.Close()
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require.NoError(t, err)
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_, err = ab.SendMessage(chID, []byte("still here"))
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require.NoError(t, err)
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ch, msg, err = ba.ReceiveMessage()
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require.NoError(t, err)
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require.Equal(t, chID, ch)
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require.Equal(t, []byte("still here"), msg)
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// Close one side of the connection. Both sides should then error
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// with io.EOF when trying to send or receive.
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err = ba.Close()
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require.NoError(t, err)
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_, _, err = ab.ReceiveMessage()
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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_, err = ab.SendMessage(chID, []byte("closed"))
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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_, _, err = ba.ReceiveMessage()
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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_, err = ba.SendMessage(chID, []byte("closed"))
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require.Error(t, err)
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require.Equal(t, io.EOF, err)
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})
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}
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func TestConnection_Status(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, _ := dialAcceptHandshake(t, a, b)
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// FIXME: This isn't implemented in all transports, so for now we just
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// check that it doesn't panic, which isn't really much of a test.
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ab.Status()
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})
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}
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func TestConnection_String(t *testing.T) {
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withTransports(t, func(t *testing.T, makeTransport transportFactory) {
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a := makeTransport(t)
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b := makeTransport(t)
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ab, _ := dialAccept(t, a, b)
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require.NotEmpty(t, ab.String())
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})
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}
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func TestEndpoint_NodeAddress(t *testing.T) {
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var (
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ip4 = []byte{1, 2, 3, 4}
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ip4in6 = net.IPv4(1, 2, 3, 4)
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ip6 = []byte{0xb1, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01}
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id = p2p.NodeID("00112233445566778899aabbccddeeff00112233")
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)
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testcases := []struct {
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endpoint p2p.Endpoint
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expect p2p.NodeAddress
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}{
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// Valid endpoints.
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{
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p2p.Endpoint{Protocol: "tcp", IP: ip4, Port: 8080, Path: "path"},
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p2p.NodeAddress{Protocol: "tcp", Hostname: "1.2.3.4", Port: 8080, Path: "path"},
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},
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{
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p2p.Endpoint{Protocol: "tcp", IP: ip4in6, Port: 8080, Path: "path"},
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p2p.NodeAddress{Protocol: "tcp", Hostname: "1.2.3.4", Port: 8080, Path: "path"},
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},
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{
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p2p.Endpoint{Protocol: "tcp", IP: ip6, Port: 8080, Path: "path"},
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p2p.NodeAddress{Protocol: "tcp", Hostname: "b10c::1", Port: 8080, Path: "path"},
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},
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{
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p2p.Endpoint{Protocol: "memory", Path: "foo"},
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p2p.NodeAddress{Protocol: "memory", Path: "foo"},
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},
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{
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p2p.Endpoint{Protocol: "memory", Path: string(id)},
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p2p.NodeAddress{Protocol: "memory", Path: string(id)},
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},
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// Partial (invalid) endpoints.
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{p2p.Endpoint{}, p2p.NodeAddress{}},
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{p2p.Endpoint{Protocol: "tcp"}, p2p.NodeAddress{Protocol: "tcp"}},
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{p2p.Endpoint{IP: net.IPv4(1, 2, 3, 4)}, p2p.NodeAddress{Hostname: "1.2.3.4"}},
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{p2p.Endpoint{Port: 8080}, p2p.NodeAddress{}},
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{p2p.Endpoint{Path: "path"}, p2p.NodeAddress{Path: "path"}},
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}
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for _, tc := range testcases {
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tc := tc
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t.Run(tc.endpoint.String(), func(t *testing.T) {
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// Without NodeID.
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expect := tc.expect
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require.Equal(t, expect, tc.endpoint.NodeAddress(""))
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// With NodeID.
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expect.NodeID = id
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require.Equal(t, expect, tc.endpoint.NodeAddress(expect.NodeID))
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})
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}
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}
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func TestEndpoint_String(t *testing.T) {
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var (
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ip4 = []byte{1, 2, 3, 4}
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ip4in6 = net.IPv4(1, 2, 3, 4)
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ip6 = []byte{0xb1, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01}
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nodeID = p2p.NodeID("00112233445566778899aabbccddeeff00112233")
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)
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testcases := []struct {
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|
endpoint p2p.Endpoint
|
|
expect string
|
|
}{
|
|
// Non-networked endpoints.
|
|
{p2p.Endpoint{Protocol: "memory", Path: string(nodeID)}, "memory:" + string(nodeID)},
|
|
{p2p.Endpoint{Protocol: "file", Path: "foo"}, "file:///foo"},
|
|
{p2p.Endpoint{Protocol: "file", Path: "👋"}, "file:///%F0%9F%91%8B"},
|
|
|
|
// IPv4 endpoints.
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4}, "tcp://1.2.3.4"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4in6}, "tcp://1.2.3.4"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4, Port: 8080}, "tcp://1.2.3.4:8080"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4, Port: 8080, Path: "/path"}, "tcp://1.2.3.4:8080/path"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4, Path: "path/👋"}, "tcp://1.2.3.4/path/%F0%9F%91%8B"},
|
|
|
|
// IPv6 endpoints.
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip6}, "tcp://b10c::1"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip6, Port: 8080}, "tcp://[b10c::1]:8080"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip6, Port: 8080, Path: "/path"}, "tcp://[b10c::1]:8080/path"},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip6, Path: "path/👋"}, "tcp://b10c::1/path/%F0%9F%91%8B"},
|
|
|
|
// Partial (invalid) endpoints.
|
|
{p2p.Endpoint{}, ""},
|
|
{p2p.Endpoint{Protocol: "tcp"}, "tcp:"},
|
|
{p2p.Endpoint{IP: []byte{1, 2, 3, 4}}, "1.2.3.4"},
|
|
{p2p.Endpoint{IP: []byte{0xb1, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01}}, "b10c::1"},
|
|
{p2p.Endpoint{Port: 8080}, ""},
|
|
{p2p.Endpoint{Path: "foo"}, "/foo"},
|
|
}
|
|
for _, tc := range testcases {
|
|
tc := tc
|
|
t.Run(tc.expect, func(t *testing.T) {
|
|
require.Equal(t, tc.expect, tc.endpoint.String())
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestEndpoint_Validate(t *testing.T) {
|
|
var (
|
|
ip4 = []byte{1, 2, 3, 4}
|
|
ip4in6 = net.IPv4(1, 2, 3, 4)
|
|
ip6 = []byte{0xb1, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01}
|
|
)
|
|
|
|
testcases := []struct {
|
|
endpoint p2p.Endpoint
|
|
expectValid bool
|
|
}{
|
|
// Valid endpoints.
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4}, true},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4in6}, true},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip6}, true},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4, Port: 8008}, true},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: ip4, Port: 8080, Path: "path"}, true},
|
|
{p2p.Endpoint{Protocol: "memory", Path: "path"}, true},
|
|
|
|
// Invalid endpoints.
|
|
{p2p.Endpoint{}, false},
|
|
{p2p.Endpoint{IP: ip4}, false},
|
|
{p2p.Endpoint{Protocol: "tcp"}, false},
|
|
{p2p.Endpoint{Protocol: "tcp", IP: []byte{1, 2, 3}}, false},
|
|
{p2p.Endpoint{Protocol: "tcp", Port: 8080, Path: "path"}, false},
|
|
}
|
|
for _, tc := range testcases {
|
|
tc := tc
|
|
t.Run(tc.endpoint.String(), func(t *testing.T) {
|
|
err := tc.endpoint.Validate()
|
|
if tc.expectValid {
|
|
require.NoError(t, err)
|
|
} else {
|
|
require.Error(t, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// dialAccept is a helper that dials b from a and returns both sides of the
|
|
// connection.
|
|
func dialAccept(t *testing.T, a, b p2p.Transport) (p2p.Connection, p2p.Connection) {
|
|
t.Helper()
|
|
|
|
endpoints := b.Endpoints()
|
|
require.NotEmpty(t, endpoints, "peer not listening on any endpoints")
|
|
|
|
ctx, cancel := context.WithTimeout(ctx, time.Second)
|
|
defer cancel()
|
|
|
|
acceptCh := make(chan p2p.Connection, 1)
|
|
errCh := make(chan error, 1)
|
|
go func() {
|
|
conn, err := b.Accept()
|
|
errCh <- err
|
|
acceptCh <- conn
|
|
}()
|
|
|
|
dialConn, err := a.Dial(ctx, endpoints[0])
|
|
require.NoError(t, err)
|
|
|
|
acceptConn := <-acceptCh
|
|
require.NoError(t, <-errCh)
|
|
|
|
t.Cleanup(func() {
|
|
_ = dialConn.Close()
|
|
_ = acceptConn.Close()
|
|
})
|
|
|
|
return dialConn, acceptConn
|
|
}
|
|
|
|
// dialAcceptHandshake is a helper that dials and handshakes b from a and
|
|
// returns both sides of the connection.
|
|
func dialAcceptHandshake(t *testing.T, a, b p2p.Transport) (p2p.Connection, p2p.Connection) {
|
|
t.Helper()
|
|
|
|
ab, ba := dialAccept(t, a, b)
|
|
|
|
ctx, cancel := context.WithTimeout(ctx, time.Second)
|
|
defer cancel()
|
|
|
|
errCh := make(chan error, 1)
|
|
go func() {
|
|
privKey := ed25519.GenPrivKey()
|
|
nodeInfo := p2p.NodeInfo{NodeID: p2p.NodeIDFromPubKey(privKey.PubKey())}
|
|
_, _, err := ba.Handshake(ctx, nodeInfo, privKey)
|
|
errCh <- err
|
|
}()
|
|
|
|
privKey := ed25519.GenPrivKey()
|
|
nodeInfo := p2p.NodeInfo{NodeID: p2p.NodeIDFromPubKey(privKey.PubKey())}
|
|
_, _, err := ab.Handshake(ctx, nodeInfo, privKey)
|
|
require.NoError(t, err)
|
|
|
|
timer := time.NewTimer(2 * time.Second)
|
|
defer timer.Stop()
|
|
select {
|
|
case err := <-errCh:
|
|
require.NoError(t, err)
|
|
case <-timer.C:
|
|
require.Fail(t, "handshake timed out")
|
|
}
|
|
|
|
return ab, ba
|
|
}
|