wgortc (Wireguard Over Webrtc)

How to Use

replace conn.Bind with this. more details see example/main.go

	// local signaler hub
	hub := local.NewHub()
	// client signaler, you can impl a custom signaler by youself
	signaler := local.NewServer()
	hub.Register("client", signaler)
	bind := wgortc.NewBind(signaler)
	dev = device.NewDevice(tun, bind, device.NewLogger(loglevel, "client"))

Custom Signaler Server

implement the signaler.Channel interface

package signaler

import "github.com/pion/webrtc/v3"

type SDP = webrtc.SessionDescription

type Channel interface {
	Handshake(endpoint string, offer SDP) (answer *SDP, err error)
	Accept() (offerCh <-chan Session, err error)

	Close() error
}

type Session interface {
	Description() (offer SDP)
	Resolve(answer *SDP) (err error)
	Reject(err error)
}

如何建立连接

sequenceDiagram
    participant client
    participant server
    par first message packet
        client->>server: webrtc session description
    and
        client->>server: wireguard initiator message
    end
    Note over server,client: server wireguard check initiator
    critical check failed
        server--)client: close connection
    option check ok
        server->>client: webrtc session description
        server->>client: wiregaurd response initiator
    		server->>client: webrtc pair connect
    end
    Note over server,client: webrtc connected
    loop webrtc datachannel open
        server->client: wireguard exchange data
    end

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