mirror of
https://github.com/netbirdio/netbird.git
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0c039274a4
This update adds new relay integration for NetBird clients. The new relay is based on web sockets and listens on a single port. - Adds new relay implementation with websocket with single port relaying mechanism - refactor peer connection logic, allowing upgrade and downgrade from/to P2P connection - peer connections are faster since it connects first to relay and then upgrades to P2P - maintains compatibility with old clients by not using the new relay - updates infrastructure scripts with new relay service
84 lines
1.7 KiB
Go
84 lines
1.7 KiB
Go
//go:build linux || darwin
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package main
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import (
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"fmt"
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"net"
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"github.com/pion/logging"
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"github.com/pion/turn/v3"
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log "github.com/sirupsen/logrus"
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)
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type TurnConn struct {
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conn net.Conn
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turnClient *turn.Client
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relayConn net.PacketConn
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}
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func (tc *TurnConn) Address() net.Addr {
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return tc.relayConn.LocalAddr()
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}
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func (tc *TurnConn) Close() {
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_ = tc.relayConn.Close()
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tc.turnClient.Close()
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_ = tc.conn.Close()
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}
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func AllocateTurnClient(serverAddr string) *TurnConn {
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conn, err := net.Dial("tcp", serverAddr)
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if err != nil {
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log.Fatal(err)
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}
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turnClient, err := getTurnClient(serverAddr, conn)
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if err != nil {
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log.Fatal(err)
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}
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relayConn, err := turnClient.Allocate()
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if err != nil {
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log.Fatal(err)
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}
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return &TurnConn{
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conn: conn,
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turnClient: turnClient,
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relayConn: relayConn,
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}
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}
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func getTurnClient(address string, conn net.Conn) (*turn.Client, error) {
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// Dial TURN Server
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addrStr := fmt.Sprintf("%s:%d", address, 443)
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fac := logging.NewDefaultLoggerFactory()
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//fac.DefaultLogLevel = logging.LogLevelTrace
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// Start a new TURN Client and wrap our net.Conn in a STUNConn
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// This allows us to simulate datagram based communication over a net.Conn
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cfg := &turn.ClientConfig{
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TURNServerAddr: address,
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Conn: turn.NewSTUNConn(conn),
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Username: "test",
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Password: "test",
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LoggerFactory: fac,
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}
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client, err := turn.NewClient(cfg)
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if err != nil {
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return nil, fmt.Errorf("failed to create TURN client for server %s: %s", addrStr, err)
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}
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// Start listening on the conn provided.
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err = client.Listen()
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if err != nil {
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client.Close()
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return nil, fmt.Errorf("failed to listen on TURN client for server %s: %s", addrStr, err)
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}
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return client, nil
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}
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