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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "github.com/meshbird/meshbird/secure" | ||
| "net" | ||
| "strconv" | ||
| "time" | ||
| "fmt" | ||
| "github.com/meshbird/meshbird/log" | ||
| "github.com/anacrolix/utp" | ||
| "github.com/meshbird/meshbird/network/protocol" | ||
| ) | ||
|
|
||
| func TryConnect(h string, networkSecret *secure.NetworkSecret, ln *LocalNode) (*RemoteNode, error) { | ||
| host, portStr, errSplit := net.SplitHostPort(h) | ||
| if errSplit != nil { | ||
| return nil, errSplit | ||
| } | ||
|
|
||
| port, errConvert := strconv.Atoi(portStr) | ||
| if errConvert != nil { | ||
| return nil, errConvert | ||
| } | ||
|
|
||
| rn := new(RemoteNode) | ||
| rn.lastHeartbeat = time.Now() | ||
| rn.publicAddress = fmt.Sprintf("%s:%d", host, port + 1) | ||
|
|
||
| rn.logger = log.L(fmt.Sprintf("public %s", rn.publicAddress)) | ||
| rn.logger.Debug("trying to connect...") | ||
|
|
||
| s, errSocket := utp.NewSocket("udp4", ":0") | ||
| if errSocket != nil { | ||
| rn.logger.Error("unable to crete a socket, %v", errSocket) | ||
| return nil, errSocket | ||
| } | ||
|
|
||
| conn, errDial := s.DialTimeout(rn.publicAddress, 10 * time.Second) | ||
| if errDial != nil { | ||
| rn.logger.Error("unable to dial, %s", errDial) | ||
| return nil, errDial | ||
| } | ||
|
|
||
| rn.conn = conn | ||
| rn.sessionKey = RandomBytes(16) | ||
|
|
||
| if err := protocol.WriteEncodeHandshake(rn.conn, rn.sessionKey, networkSecret); err != nil { | ||
| return nil, err | ||
| } | ||
| if _, okError := protocol.ReadDecodeOk(rn.conn); okError != nil { | ||
| return nil, okError | ||
| } | ||
|
|
||
| peerInfo, errPeerInfo := protocol.ReadDecodePeerInfo(rn.conn) | ||
| if errPeerInfo != nil { | ||
| return nil, errPeerInfo | ||
| } | ||
|
|
||
| rn.privateIP = peerInfo.PrivateIP() | ||
|
|
||
| // create new logger | ||
| log.RemoveLogger(rn.logger.Name()) | ||
| rn.logger = log.L(fmt.Sprintf(rnLoggerFormat, rn.privateIP.String())) | ||
|
|
||
| if err := protocol.WriteEncodePeerInfo(rn.conn, ln.State().PrivateIP); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| rn.logger.Info("connected, with public address %q", rn.publicAddress) | ||
| return rn, nil | ||
| } |