Esempio n. 1
0
func (d *tcpDialer) reuseDial(raddr ma.Multiaddr) (manet.Conn, error) {
	logdial := lgbl.Dial("conn", "", "", d.laddr, raddr)
	rpev := log.EventBegin(context.TODO(), "tptDialReusePort", logdial)

	network, netraddr, err := manet.DialArgs(raddr)
	if err != nil {
		return nil, err
	}

	con, err := d.rd.Dial(network, netraddr)
	if err == nil {
		logdial["reuseport"] = "success"
		rpev.Done()
		return manet.WrapNetConn(con)
	}

	if !ReuseErrShouldRetry(err) {
		logdial["reuseport"] = "failure"
		logdial["error"] = err
		rpev.Done()
		return nil, err
	}

	logdial["reuseport"] = "retry"
	logdial["error"] = err
	rpev.Done()

	return d.madialer.Dial(raddr)
}
Esempio n. 2
0
func multiaddrToNormal(addr string) (string, error) {
	maddr, err := ma.NewMultiaddr(addr)
	if err != nil {
		return "", err
	}

	_, host, err := manet.DialArgs(maddr)
	if err != nil {
		return "", err
	}

	return host, nil
}
Esempio n. 3
0
func (gw *Gateway) listen(addr ma.Multiaddr) error {
	lnet, lnaddr, err := manet.DialArgs(addr)
	if err != nil {
		return err
	}

	l, err := net.Listen(lnet, lnaddr)
	if err != nil {
		return err
	}

	_, err = gw.conns.AddListener(l)
	if err == nil {
		fmt.Printf("Swarm listening on %v\n", addr)
	}
	return err
}
Esempio n. 4
0
// NewMapping attemps to construct a mapping on protocol and internal port
// It will also periodically renew the mapping until the returned Mapping
// -- or its parent NAT -- is Closed.
//
// May not succeed, and mappings may change over time;
// NAT devices may not respect our port requests, and even lie.
// Clients should not store the mapped results, but rather always
// poll our object for the latest mappings.
func (nat *NAT) NewMapping(maddr ma.Multiaddr) (Mapping, error) {
	if nat == nil {
		return nil, fmt.Errorf("no nat available")
	}

	network, addr, err := manet.DialArgs(maddr)
	if err != nil {
		return nil, fmt.Errorf("DialArgs failed on addr:", maddr.String())
	}

	switch network {
	case "tcp", "tcp4", "tcp6":
		network = "tcp"
	case "udp", "udp4", "udp6":
		network = "udp"
	default:
		return nil, fmt.Errorf("transport not supported by NAT: %s", network)
	}

	intports := strings.Split(addr, ":")[1]
	intport, err := strconv.Atoi(intports)
	if err != nil {
		return nil, err
	}

	m := &mapping{
		nat:     nat,
		proto:   network,
		intport: intport,
		intaddr: maddr,
	}
	m.proc = goprocess.WithTeardown(func() error {
		nat.rmMapping(m)
		return nil
	})
	nat.addMapping(m)

	m.proc.AddChild(periodic.Every(MappingDuration/3, func(worker goprocess.Process) {
		nat.establishMapping(m)
	}))

	// do it once synchronously, so first mapping is done right away, and before exiting,
	// allowing users -- in the optimistic case -- to use results right after.
	nat.establishMapping(m)
	return m, nil
}
Esempio n. 5
0
func (f *Filters) AddrBlocked(a ma.Multiaddr) bool {
	_, addr, err := manet.DialArgs(a)
	if err != nil {
		// if we cant parse it, its probably not blocked
		return false
	}

	ipstr := strings.Split(addr, ":")[0]
	ip := net.ParseIP(ipstr)
	f.mu.RLock()
	defer f.mu.RUnlock()
	for _, ft := range f.filters {
		if ft.Contains(ip) {
			return true
		}
	}
	return false
}
Esempio n. 6
0
func manetListen(addr ma.Multiaddr) (manet.Listener, error) {
	network, naddr, err := manet.DialArgs(addr)
	if err != nil {
		return nil, err
	}

	if ReuseportIsAvailable() {
		nl, err := reuseport.Listen(network, naddr)
		if err == nil {
			// hey, it worked!
			return manet.WrapNetListener(nl)
		}
		// reuseport is available, but we failed to listen. log debug, and retry normally.
		log.Debugf("reuseport available, but failed to listen: %s %s, %s", network, naddr, err)
	}

	// either reuseport not available, or it failed. try normally.
	return manet.Listen(addr)
}
Esempio n. 7
0
func getNodesAPIAddr(nnum int) (string, error) {
	addrb, err := ioutil.ReadFile(path.Join(IpfsDirN(nnum), "api"))
	if err != nil {
		return "", err
	}

	maddr, err := ma.NewMultiaddr(string(addrb))
	if err != nil {
		fmt.Println("error parsing multiaddr: ", err)
		return "", err
	}

	_, addr, err := manet.DialArgs(maddr)
	if err != nil {
		fmt.Println("error on multiaddr dialargs: ", err)
		return "", err
	}
	return addr, nil
}
Esempio n. 8
0
func IpfsStart(waitall bool) error {
	var addrs []string
	n := GetNumNodes()
	for i := 0; i < n; i++ {
		dir := IpfsDirN(i)
		cmd := exec.Command("ipfs", "daemon")
		cmd.Dir = dir
		cmd.Env = []string{"IPFS_PATH=" + dir}

		cmd.SysProcAttr = &syscall.SysProcAttr{Setsid: true}

		stdout, err := os.Create(path.Join(dir, "daemon.stdout"))
		if err != nil {
			return err
		}

		stderr, err := os.Create(path.Join(dir, "daemon.stderr"))
		if err != nil {
			return err
		}

		cmd.Stdout = stdout
		cmd.Stderr = stderr

		err = cmd.Start()
		if err != nil {
			return err
		}
		pid := cmd.Process.Pid

		fmt.Printf("Started daemon %d, pid = %d\n", i, pid)
		err = ioutil.WriteFile(path.Join(dir, "daemon.pid"), []byte(fmt.Sprint(pid)), 0666)
		if err != nil {
			return err
		}

		// Make sure node 0 is up before starting the rest so
		// bootstrapping works properly
		if i == 0 || waitall {
			cfg, err := serial.Load(path.Join(IpfsDirN(i), "config"))
			if err != nil {
				return err
			}

			maddr := ma.StringCast(cfg.Addresses.API)
			_, addr, err := manet.DialArgs(maddr)
			if err != nil {
				return err
			}

			addrs = append(addrs, addr)

			err = waitOnAPI(cfg.Identity.PeerID, addr)
			if err != nil {
				return err
			}
		}
	}
	if waitall {
		for i := 0; i < n; i++ {
			err := waitOnSwarmPeers(addrs[i])
			if err != nil {
				return err
			}
		}

	}
	return nil
}