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path: root/p2p/server_test.go
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Diffstat (limited to 'p2p/server_test.go')
-rw-r--r--p2p/server_test.go156
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 {