syncthing/cmd/relaysrv/main.go
Audrius Butkevicius f376c79f7f Add initial code
2015-06-24 15:02:23 +01:00

89 lines
2.6 KiB
Go

// 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)
}