Add initial code

2015-06-24 12:39:46 +01:00
parent a98824b4cf
commit f376c79f7f
7 changed files with 1063 additions and 0 deletions
--- a/cmd/relaysrv/main.go
+++ b/cmd/relaysrv/main.go
@@ -0,0 +1,88 @@
+// Copyright (C) 2015 Audrius Butkevicius and Contributors (see the CONTRIBUTORS file).
+
+package main
+
+import (
+	"crypto/tls"
+	"flag"
+	"log"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	syncthingprotocol "github.com/syncthing/protocol"
+	"github.com/syncthing/relaysrv/protocol"
+)
+
+var (
+	listenProtocol string
+	listenSession  string
+	debug          bool
+
+	sessionAddress []byte
+	sessionPort    uint16
+
+	networkTimeout time.Duration
+	pingInterval   time.Duration
+	messageTimeout time.Duration
+
+	pingMessage message
+
+	mut    = sync.RWMutex{}
+	outbox = make(map[syncthingprotocol.DeviceID]chan message)
+)
+
+func main() {
+	var dir, extAddress string
+
+	pingPayload := protocol.Ping{}.MustMarshalXDR()
+	pingMessage = message{
+		header: protocol.Header{
+			Magic:         protocol.Magic,
+			MessageType:   protocol.MessageTypePing,
+			MessageLength: int32(len(pingPayload)),
+		},
+		payload: pingPayload,
+	}
+
+	flag.StringVar(&listenProtocol, "protocol-listen", ":22067", "Protocol listen address")
+	flag.StringVar(&listenSession, "session-listen", ":22068", "Session listen address")
+	flag.StringVar(&extAddress, "external-address", "", "External address to advertise, defaults no IP and session-listen port, causing clients to use the remote IP from the protocol connection")
+	flag.StringVar(&dir, "keys", ".", "Directory where cert.pem and key.pem is stored")
+	flag.DurationVar(&networkTimeout, "network-timeout", 2*time.Minute, "Timeout for network operations")
+	flag.DurationVar(&pingInterval, "ping-interval", time.Minute, "How often pings are sent")
+	flag.DurationVar(&messageTimeout, "message-timeout", time.Minute, "Maximum amount of time we wait for relevant messages to arrive")
+
+	flag.BoolVar(&debug, "debug", false, "Enable debug output")
+	flag.Parse()
+
+	certFile, keyFile := filepath.Join(dir, "cert.pem"), filepath.Join(dir, "key.pem")
+	cert, err := tls.LoadX509KeyPair(certFile, keyFile)
+	if err != nil {
+		log.Fatalln("Failed to load X509 key pair:", err)
+	}
+
+	tlsCfg := &tls.Config{
+		Certificates:           []tls.Certificate{cert},
+		NextProtos:             []string{protocol.ProtocolName},
+		ClientAuth:             tls.RequestClientCert,
+		SessionTicketsDisabled: true,
+		InsecureSkipVerify:     true,
+		MinVersion:             tls.VersionTLS12,
+		CipherSuites: []uint16{
+			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+			tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+			tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+			tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+			tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+			tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+		},
+	}
+
+	log.SetOutput(os.Stdout)
+
+	go sessionListener(listenSession)
+
+	protocolListener(listenProtocol, tlsCfg)
+}