diff options
Diffstat (limited to 'p2p/server_test.go')
| -rw-r--r-- | p2p/server_test.go | 156 |
1 files changed, 153 insertions, 3 deletions
diff --git a/p2p/server_test.go b/p2p/server_test.go index 86514b650..3f9db343c 100644 --- a/p2p/server_test.go +++ b/p2p/server_test.go @@ -22,7 +22,7 @@ func startTestServer(t *testing.T, pf newPeerHook) *Server { ListenAddr: "127.0.0.1:0", PrivateKey: newkey(), newPeerHook: pf, - setupFunc: func(fd net.Conn, prv *ecdsa.PrivateKey, our *protoHandshake, dial *discover.Node, atcap bool) (*conn, error) { + setupFunc: func(fd net.Conn, prv *ecdsa.PrivateKey, our *protoHandshake, dial *discover.Node, atcap bool, trusted map[discover.NodeID]bool) (*conn, error) { id := randomID() rw := newRlpxFrameRW(fd, secrets{ MAC: zero16, @@ -102,7 +102,7 @@ func TestServerDial(t *testing.T) { // tell the server to connect tcpAddr := listener.Addr().(*net.TCPAddr) - srv.SuggestPeer(&discover.Node{IP: tcpAddr.IP, TCP: uint16(tcpAddr.Port)}) + srv.staticDial <- &discover.Node{IP: tcpAddr.IP, TCP: uint16(tcpAddr.Port)} select { case conn := <-accepted: @@ -200,7 +200,7 @@ func TestServerDisconnectAtCap(t *testing.T) { // Run the handshakes just like a real peer would. key := newkey() hs := &protoHandshake{Version: baseProtocolVersion, ID: discover.PubkeyID(&key.PublicKey)} - _, err = setupConn(conn, key, hs, srv.Self(), false) + _, err = setupConn(conn, key, hs, srv.Self(), false, srv.trustedNodes) if i == nconns-1 { // When handling the last connection, the server should // disconnect immediately instead of running the protocol @@ -219,6 +219,156 @@ func TestServerDisconnectAtCap(t *testing.T) { } } +// Tests that static peers are (re)connected, and done so even above max peers. +func TestServerStaticPeers(t *testing.T) { + defer testlog(t).detach() + + // Create a test server with limited connection slots + started := make(chan *Peer) + server := &Server{ + ListenAddr: "127.0.0.1:0", + PrivateKey: newkey(), + MaxPeers: 3, + newPeerHook: func(p *Peer) { started <- p }, + staticCycle: time.Second, + } + if err := server.Start(); err != nil { + t.Fatal(err) + } + defer server.Stop() + + // Fill up all the slots on the server + dialer := &net.Dialer{Deadline: time.Now().Add(3 * time.Second)} + for i := 0; i < server.MaxPeers; i++ { + // Establish a new connection + conn, err := dialer.Dial("tcp", server.ListenAddr) + if err != nil { + t.Fatalf("conn %d: dial error: %v", i, err) + } + defer conn.Close() + + // Run the handshakes just like a real peer would, and wait for completion + key := newkey() + shake := &protoHandshake{Version: baseProtocolVersion, ID: discover.PubkeyID(&key.PublicKey)} + if _, err = setupConn(conn, key, shake, server.Self(), false, server.trustedNodes); err != nil { + t.Fatalf("conn %d: unexpected error: %v", i, err) + } + <-started + } + // Open a TCP listener to accept static connections + listener, err := net.Listen("tcp", "127.0.0.1:0") + if err != nil { + t.Fatalf("failed to setup listener: %v", err) + } + defer listener.Close() + + connected := make(chan net.Conn) + go func() { + for i := 0; i < 3; i++ { + conn, err := listener.Accept() + if err == nil { + connected <- conn + } + } + }() + // Inject a static node and wait for a remote dial, then redial, then nothing + addr := listener.Addr().(*net.TCPAddr) + static := &discover.Node{ + ID: discover.PubkeyID(&newkey().PublicKey), + IP: addr.IP, + TCP: uint16(addr.Port), + } + server.AddPeer(static) + + select { + case conn := <-connected: + // Close the first connection, expect redial + conn.Close() + + case <-time.After(2 * server.staticCycle): + t.Fatalf("remote dial timeout") + } + + select { + case conn := <-connected: + // Keep the second connection, don't expect redial + defer conn.Close() + + case <-time.After(2 * server.staticCycle): + t.Fatalf("remote re-dial timeout") + } + + select { + case <-time.After(2 * server.staticCycle): + // Timeout as no dial occurred + + case <-connected: + t.Fatalf("connected node dialed") + } +} + +// Tests that trusted peers and can connect above max peer caps. +func TestServerTrustedPeers(t *testing.T) { + defer testlog(t).detach() + + // Create a trusted peer to accept connections from + key := newkey() + trusted := &discover.Node{ + ID: discover.PubkeyID(&key.PublicKey), + } + // Create a test server with limited connection slots + started := make(chan *Peer) + server := &Server{ + ListenAddr: "127.0.0.1:0", + PrivateKey: newkey(), + MaxPeers: 3, + NoDial: true, + TrustedNodes: []*discover.Node{trusted}, + newPeerHook: func(p *Peer) { started <- p }, + } + if err := server.Start(); err != nil { + t.Fatal(err) + } + defer server.Stop() + + // Fill up all the slots on the server + dialer := &net.Dialer{Deadline: time.Now().Add(3 * time.Second)} + for i := 0; i < server.MaxPeers; i++ { + // Establish a new connection + conn, err := dialer.Dial("tcp", server.ListenAddr) + if err != nil { + t.Fatalf("conn %d: dial error: %v", i, err) + } + defer conn.Close() + + // Run the handshakes just like a real peer would, and wait for completion + key := newkey() + shake := &protoHandshake{Version: baseProtocolVersion, ID: discover.PubkeyID(&key.PublicKey)} + if _, err = setupConn(conn, key, shake, server.Self(), false, server.trustedNodes); err != nil { + t.Fatalf("conn %d: unexpected error: %v", i, err) + } + <-started + } + // Dial from the trusted peer, ensure connection is accepted + conn, err := dialer.Dial("tcp", server.ListenAddr) + if err != nil { + t.Fatalf("trusted node: dial error: %v", err) + } + defer conn.Close() + + shake := &protoHandshake{Version: baseProtocolVersion, ID: trusted.ID} + if _, err = setupConn(conn, key, shake, server.Self(), false, server.trustedNodes); err != nil { + t.Fatalf("trusted node: unexpected error: %v", err) + } + select { + case <-started: + // Ok, trusted peer accepted + + case <-time.After(100 * time.Millisecond): + t.Fatalf("trusted node timeout") + } +} + func newkey() *ecdsa.PrivateKey { key, err := crypto.GenerateKey() if err != nil { |