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
73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
//go:build linux || darwin
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package tun
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import (
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"net"
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"sync/atomic"
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log "github.com/sirupsen/logrus"
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)
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type Proxy struct {
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Device *Device
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PConn net.PacketConn
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DstAddr net.Addr
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shutdownFlag atomic.Bool
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}
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func (p *Proxy) Start() {
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go p.readFromDevice()
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go p.readFromConn()
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}
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func (p *Proxy) Close() {
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p.shutdownFlag.Store(true)
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}
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func (p *Proxy) readFromDevice() {
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buf := make([]byte, 1500)
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for {
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n, err := p.Device.Read(buf)
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if err != nil {
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if p.shutdownFlag.Load() {
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return
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}
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log.Errorf("failed to read from device: %s", err)
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return
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}
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_, err = p.PConn.WriteTo(buf[:n], p.DstAddr)
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if err != nil {
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if p.shutdownFlag.Load() {
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return
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}
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log.Errorf("failed to write to conn: %s", err)
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return
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}
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}
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}
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func (p *Proxy) readFromConn() {
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buf := make([]byte, 1500)
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for {
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n, _, err := p.PConn.ReadFrom(buf)
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if err != nil {
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if p.shutdownFlag.Load() {
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return
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}
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log.Errorf("failed to read from conn: %s", err)
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return
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}
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_, err = p.Device.Write(buf[:n])
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if err != nil {
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if p.shutdownFlag.Load() {
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return
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}
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log.Errorf("failed to write to device: %s", err)
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return
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}
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}
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}
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