Exemplo n.º 1
0
func init() {
	var err error
	serverVersion, err = xu.ParseDecimalVersion(VERSION)
	if err != nil {
		panic(err)
	}
}
Exemplo n.º 2
0
func init() {
	// msgHandlers = make([][]interface{}, BYE_RCVD, MSG_HANDLER_COUNT)

	msgHandlers = [][]interface{}{
		// client messages permitted in HELLO_RCVD state
		{doClientMsg, badCombo, badCombo, badCombo, doByeMsg},
		// messages permitted in CLIENT_DETAILS_RCVD
		{badCombo, doCreateMsg, doJoinMsg, badCombo, doByeMsg},
		// messages permitted in CREATE_REQUEST_RCVD
		{badCombo, badCombo, doJoinMsg, badCombo, doByeMsg},
		// messages permitted in JOIN_RCVD
		{badCombo, badCombo, badCombo, doGetMsg, doByeMsg},
	}
	var err error
	serverVersion, err = xu.ParseDecimalVersion(VERSION)
	if err != nil {
		panic(err)
	}
}
Exemplo n.º 3
0
func NewUpaxServer(ckPriv, skPriv *rsa.PrivateKey, cm *xcl.ClusterMember,
	whichSHA int) (us *UpaxServer, err error) {

	var (
		count     int
		lfs       string   // path to local file system
		f         *os.File // file for debugging log
		pathToLog string
		logger    *log.Logger

		uDir        u.UI
		pathToU     string
		entries     *xi.IDMap
		ftLogFile   *os.File
		pathToFTLog string // conventionally lfs/U/L
	)
	if ckPriv == nil || ckPriv == nil {
		err = NilRSAKey
	} else if cm == nil {
		err = NilClusterMember
	}
	if err == nil {
		serverVersion, err = xu.ParseDecimalVersion(VERSION)
	}
	if err == nil {
		// whatever created cm should have created the local file system
		// and written the node configuration to
		// LFS/.xlattice/cluster.member.config.  Let's make sure that
		// that exists before proceeding.

		lfs = cm.GetLFS()
		// This should be passed in opt.Logger
		pathToLog = filepath.Join(lfs, "log")
		f, err = os.OpenFile(pathToLog,
			os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0640)
		if err == nil {
			logger = log.New(f, "", log.Ldate|log.Ltime)
		}
		pathToCfg := filepath.Join(
			filepath.Join(lfs, ".xlattice"), "cluster.member.config")
		var found bool
		found, err = xf.PathExists(pathToCfg)
		if err == nil && found == false {
			err = ClusterConfigNotFound
		}
	}
	if f != nil {
		defer f.Close()
	}

	if err == nil {
		// DEBUG
		fmt.Printf("creating directory tree in %s\n", lfs)
		// END

		pathToU = filepath.Join(lfs, "U")
		uDir, err = u.New(pathToU, u.DIR16x16, 0)
	}
	if err == nil {
		entries, err = xi.NewNewIDMap() // with default depth
	}
	if err == nil {
		var found bool
		pathToFTLog = filepath.Join(pathToU, "L")
		found, err = xf.PathExists(pathToFTLog)
		if err == nil {
			if found {
				fmt.Printf("ftLog file exists\n")
				count, err = loadEntries(pathToFTLog, entries, whichSHA)
				if err == nil {
					// reopen it 0600 for appending
					ftLogFile, err = os.OpenFile(pathToFTLog,
						os.O_WRONLY|os.O_APPEND, 0600)
				}
			} else {
				// open it for appending
				ftLogFile, err = os.OpenFile(pathToFTLog,
					os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0600)
			}
		}

	}
	if err == nil {
		us = &UpaxServer{
			DoneCh:         make(chan bool, 2),
			PathToDebugLog: pathToLog,
			Logger:         logger,
			uDir:           uDir,
			entries:        entries,
			ftLogFile:      ftLogFile,
			pathToFTLog:    pathToFTLog,
			entryCount:     count,
			ckPriv:         ckPriv,
			skPriv:         skPriv,
			ClusterMember:  *cm,
		}
	}
	return
}
Exemplo n.º 4
0
func ParseRegCred(s string) (rc *RegCred, err error) {

	var (
		line    string
		parts   []string
		name    string
		nodeID  *xi.NodeID
		ck, sk  *rsa.PublicKey
		e       []xt.EndPointI
		version xu.DecimalVersion
	)
	ss := strings.Split(s, "\n")
	line, err = xc.NextNBLine(&ss)
	if (err == nil) && (line != "regCred {") {
		err = IllFormedRegCred
	}
	if err == nil {
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			parts = strings.Split(line, ": ")
			if len(parts) == 2 && parts[0] == "Name" {
				name = strings.TrimLeft(parts[1], " \t")
			} else {
				err = IllFormedRegCred
			}
		}
	}
	if err == nil {
		var id []byte
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			parts = strings.Split(line, ": ")
			if len(parts) == 2 && parts[0] == "ID" {
				id, err = hex.DecodeString(parts[1])
			} else {
				err = IllFormedRegCred
			}
		}
		if err == nil {
			nodeID, err = xi.New(id)
		}
	}
	if err == nil {
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			parts = strings.Split(line, ": ")
			if len(parts) == 2 && parts[0] == "CommsPubKey" {
				ck, err = xc.RSAPubKeyFromDisk([]byte(parts[1]))
			} else {
				err = IllFormedRegCred
			}
		}
	}
	if err == nil {
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			parts = strings.Split(line, ": ")
			if len(parts) == 2 && parts[0] == "SigPubKey" {
				sk, err = xc.RSAPubKeyFromDisk([]byte(parts[1]))
			} else {
				err = IllFormedRegCred
			}
		}
	}
	if err == nil {
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			// collect EndPoints section; this should be turned into a
			// utility function
			if line == "EndPoints {" {
				for err == nil {
					line = strings.TrimSpace(ss[0]) // peek
					if line == "}" {
						break
					}
					line, err = xc.NextNBLine(&ss)
					if err == nil {
						line = strings.TrimSpace(line)
						parts := strings.Split(line, ": ")
						if len(parts) != 2 || parts[0] != "TcpEndPoint" {
							err = IllFormedRegCred
						} else {
							var ep xt.EndPointI
							ep, err = xt.NewTcpEndPoint(parts[1])
							if err == nil {
								e = append(e, ep)
							}
						}
					}
				}
				if err == nil {
					line, err = xc.NextNBLine(&ss)
					if (err == nil) && (line != "}") {
						err = MissingClosingBrace
					}
				}
			} else {
				err = MissingEndPointsSection
			}
		}
	}
	if err == nil {
		line, err = xc.NextNBLine(&ss)
		if err == nil {
			parts = strings.Split(line, ": ")
			if len(parts) == 2 && parts[0] == "Version" {
				version, err = xu.ParseDecimalVersion(parts[1])
			} else {
				err = IllFormedRegCred
			}
		}
	}
	if err == nil {
		rc = &RegCred{
			Name:        name,
			ID:          nodeID,
			CommsPubKey: ck,
			SigPubKey:   sk,
			EndPoints:   e,
			Version:     version,
		}
	}
	return
}
Exemplo n.º 5
0
func NewRegistry(clusters []*RegCluster,
	rn *RegNode,
	opt *RegOptions) (
	reg *Registry, err error) {

	var (
		idFilter      xf.BloomSHAI
		m             ha.HAMT
		serverVersion xu.DecimalVersion
	)
	serverVersion, err = xu.ParseDecimalVersion(VERSION)
	if err == nil && rn == nil {
		err = NilRegNode
	}
	if err == nil {
		if opt.BackingFile == "" {
			idFilter, err = xf.NewBloomSHA(opt.M, opt.K)
		} else {
			idFilter, err = xf.NewMappedBloomSHA(opt.M, opt.K, opt.BackingFile)
		}
		if err == nil {
			// HAMT root table size is 2^opt.T
			m, err = ha.NewHAMT(DEFAULT_W, opt.T)
		}
	}
	if err == nil {
		logger := opt.Logger
		if logger == nil {
			logger = log.New(os.Stderr, "", log.Ldate|log.Ltime)
		}
		testing := opt.Testing
		// DEBUG
		if testing {
			logger.Printf("testing and globalEndPoint = %s\n", opt.GlobalEndPoint)
		}
		// END
		reg = &Registry{
			idFilter:       idFilter,
			Clusters:       clusters,
			GlobalEndPoint: opt.GlobalEndPoint, // written to regCred
			ClustersByName: make(map[string]*RegCluster),
			ClustersByID:   m,

			Logger:  logger,
			RegNode: *rn,
		}
		if clusters != nil {
			// XXX need to populate the indexes here
		}
		myLFS := rn.GetLFS()
		if myLFS != "" {
			var ep []xt.EndPointI
			// list of endpoints for regCred
			//for i := 0; i < rn.SizeEndPoints(); i++ {
			//	ep = append(ep, rn.GetEndPoint(i))
			//}
			// XXX err should never be nil here
			if err == nil {
				ep = append(ep, opt.GlobalEndPoint)
				regCred := &RegCred{
					Name:        rn.GetName(),
					ID:          rn.GetNodeID(),
					CommsPubKey: rn.GetCommsPublicKey(),
					SigPubKey:   rn.GetSigPublicKey(),
					EndPoints:   ep,
					Version:     serverVersion,
				}
				serialized := regCred.String() // shd have terminating CRLF
				logger.Print(serialized)
				pathToFile := filepath.Join(myLFS, "regCred.dat")
				err = ioutil.WriteFile(pathToFile, []byte(serialized), 0644)
			}
		}
	}
	if err == nil {
		// registry's own ID added to Bloom filter
		regID := rn.GetNodeID()
		// DEBUG
		reg.Logger.Printf("\ninserting registry ID %x\n", regID.Value())
		// END
		err = reg.InsertID(regID)
	}
	return
}