mirror of
https://github.com/netbirdio/netbird.git
synced 2024-12-15 11:21:04 +01:00
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
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
|
|
"github.com/pion/logging"
|
|
"github.com/pion/turn/v3"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type TurnConn struct {
|
|
conn net.Conn
|
|
turnClient *turn.Client
|
|
relayConn net.PacketConn
|
|
}
|
|
|
|
func (tc *TurnConn) Address() net.Addr {
|
|
return tc.relayConn.LocalAddr()
|
|
}
|
|
|
|
func (tc *TurnConn) Close() {
|
|
_ = tc.relayConn.Close()
|
|
tc.turnClient.Close()
|
|
_ = tc.conn.Close()
|
|
}
|
|
|
|
func AllocateTurnClient(serverAddr string) *TurnConn {
|
|
conn, err := net.Dial("tcp", serverAddr)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
turnClient, err := getTurnClient(serverAddr, conn)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
relayConn, err := turnClient.Allocate()
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
return &TurnConn{
|
|
conn: conn,
|
|
turnClient: turnClient,
|
|
relayConn: relayConn,
|
|
}
|
|
}
|
|
|
|
func getTurnClient(address string, conn net.Conn) (*turn.Client, error) {
|
|
// Dial TURN Server
|
|
addrStr := fmt.Sprintf("%s:%d", address, 443)
|
|
|
|
fac := logging.NewDefaultLoggerFactory()
|
|
//fac.DefaultLogLevel = logging.LogLevelTrace
|
|
|
|
// Start a new TURN Client and wrap our net.Conn in a STUNConn
|
|
// This allows us to simulate datagram based communication over a net.Conn
|
|
cfg := &turn.ClientConfig{
|
|
TURNServerAddr: address,
|
|
Conn: turn.NewSTUNConn(conn),
|
|
Username: "test",
|
|
Password: "test",
|
|
LoggerFactory: fac,
|
|
}
|
|
|
|
client, err := turn.NewClient(cfg)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create TURN client for server %s: %s", addrStr, err)
|
|
}
|
|
|
|
// Start listening on the conn provided.
|
|
err = client.Listen()
|
|
if err != nil {
|
|
client.Close()
|
|
return nil, fmt.Errorf("failed to listen on TURN client for server %s: %s", addrStr, err)
|
|
}
|
|
|
|
return client, nil
|
|
}
|