Exemplo n.º 1
0
Arquivo: main.go Projeto: drptbl/oz
func handleConfigshow(c *cli.Context) {
	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	useDefaults := false
	if err != nil {
		if os.IsNotExist(err) {
			config = oz.NewDefaultConfig()
			useDefaults = true
		} else {
			fmt.Fprintf(os.Stderr, "Could not load configuration `%s`: %v\n", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	v := reflect.ValueOf(*config)
	vt := reflect.TypeOf(*config)
	maxFieldLength := 0
	for i := 0; i < v.NumField(); i++ {
		flen := len(vt.Field(i).Tag.Get("json"))
		if flen > maxFieldLength {
			maxFieldLength = flen
		}
	}
	maxValueLength := 0
	for i := 0; i < v.NumField(); i++ {
		sval := fmt.Sprintf("%v", v.Field(i).Interface())
		flen := len(sval)
		if flen > maxValueLength {
			maxValueLength = flen
		}
	}

	sfmt := "%-" + strconv.Itoa(maxFieldLength) + "s: %-" + strconv.Itoa(maxValueLength) + "v"
	hfmt := "%-" + strconv.Itoa(maxFieldLength) + "s: %s\n"

	if !useDefaults {
		fmt.Printf(hfmt, "Config file", oz.DefaultConfigPath)
	} else {
		fmt.Printf(hfmt, "Config file", "Not found - using defaults")
	}

	for i := 0; i < len(fmt.Sprintf(sfmt, "", ""))+2; i++ {
		fmt.Print("#")
	}
	fmt.Println("")

	for i := 0; i < v.NumField(); i++ {
		fval := fmt.Sprintf("%v", v.Field(i).Interface())
		fmt.Printf(sfmt, vt.Field(i).Tag.Get("json"), fval)
		desc := vt.Field(i).Tag.Get("desc")
		if desc != "" {
			fmt.Printf(" # %s", desc)
		}

		fmt.Println("")
	}

	os.Exit(0)
}
Exemplo n.º 2
0
Arquivo: mount.go Projeto: tdr130/oz
func loadConfig() (*oz.Config, error) {
	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			config = oz.NewDefaultConfig()
		} else {
			return nil, err
		}
	}

	return config, nil
}
Exemplo n.º 3
0
Arquivo: daemon.go Projeto: RoPe93/oz
func (d *daemonState) loadConfig() (*oz.Config, error) {
	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			d.log.Info("Configuration file (%s) is missing, using defaults.", oz.DefaultConfigPath)
			config = oz.NewDefaultConfig()
		} else {
			return nil, err
		}
	}
	d.log.Info("Oz Global Config: %+v", config)

	return config, nil
}
Exemplo n.º 4
0
Arquivo: main.go Projeto: drptbl/oz
func loadConfig() *oz.Config {
	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			fmt.Fprintln(os.Stderr, "Configuration file (%s) is missing, using defaults.", oz.DefaultConfigPath)
			config = oz.NewDefaultConfig()
		} else {
			fmt.Fprintln(os.Stderr, "Could not load configuration: %s", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	return config
}
Exemplo n.º 5
0
Arquivo: main.go Projeto: drptbl/oz
func handleConfigcheck(c *cli.Context) {
	_, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if !os.IsNotExist(err) {
			fmt.Fprintf(os.Stderr, "Could not load configuration `%s`: %v\n", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	OzConfig = loadConfig()
	_, err = oz.LoadProfiles(OzConfig.ProfileDir)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Unable to load profiles from `%s`: %v\n", OzConfig.ProfileDir, err)
		os.Exit(1)
	}

	fmt.Println("Configurations and profiles ok!")
	os.Exit(0)
}
Exemplo n.º 6
0
Arquivo: seccomp.go Projeto: RoPe93/oz
func Main() {
	if len(os.Args) < 3 {
		log.Error("seccomp-wrapper: Not enough arguments.")
		os.Exit(1)
	}

	cmd := os.Args[2]
	cmdArgs := os.Args[2:]

	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			log.Info("Configuration file (%s) is missing, using defaults.", oz.DefaultConfigPath)
			config = oz.NewDefaultConfig()
		} else {
			log.Error("Could not load configuration: %s", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	p := new(oz.Profile)
	if err := json.NewDecoder(os.Stdin).Decode(&p); err != nil {
		log.Error("unable to decode profile data: %v", err)
		os.Exit(1)
	}

	switch os.Args[1] {
	case "-w":
		if p.Seccomp.Seccomp_Whitelist == "" {
			log.Error("No seccomp policy file.")
			os.Exit(1)
		}
		filter, err := seccomp.Compile(p.Seccomp.Seccomp_Whitelist, p.Seccomp.Enforce)
		if err != nil {
			log.Error("Seccomp filter compile failed: %v", err)
			os.Exit(1)
		}
		err = seccomp.Install(filter)
		if err != nil {
			log.Error("Error (seccomp): %v", err)
			os.Exit(1)
		}
		err = syscall.Exec(cmd, cmdArgs, os.Environ())
		if err != nil {
			log.Error("Error (exec): %v %s", err, cmd)
			os.Exit(1)
		}
	case "-b":
		if p.Seccomp.Seccomp_Blacklist == "" {
			p.Seccomp.Seccomp_Blacklist = path.Join(config.EtcPrefix, "blacklist-generic.seccomp")
		}
		filter, err := seccomp.CompileBlacklist(p.Seccomp.Seccomp_Blacklist, p.Seccomp.Enforce)
		if err != nil {
			log.Error("Seccomp blacklist filter compile failed: %v", err)
			os.Exit(1)
		}
		err = seccomp.InstallBlacklist(filter)
		if err != nil {
			log.Error("Error (seccomp): %v", err)
			os.Exit(1)
		}
		err = syscall.Exec(cmd, cmdArgs, os.Environ())
		if err != nil {
			log.Error("Error (exec): %v %s", err, cmd)
			os.Exit(1)
		}
	default:
		fmt.Println("Bad switch.")
		os.Exit(1)
	}

}
Exemplo n.º 7
0
Arquivo: init.go Projeto: drptbl/oz
func parseArgs() *initState {
	log := createLogger()

	if os.Getuid() != 0 {
		log.Error("oz-init must run as root\n")
		os.Exit(1)
	}

	if os.Getpid() != 1 {
		log.Error("oz-init must be launched in new pid namespace.")
		os.Exit(1)
	}

	getvar := func(name string) string {
		val := os.Getenv(name)
		if val == "" {
			log.Error("Error: missing required '%s' argument", name)
			os.Exit(1)
		}
		return val
	}
	pname := getvar("INIT_PROFILE")
	sockaddr := getvar("INIT_SOCKET")
	uidval := getvar("INIT_UID")
	dispval := os.Getenv("INIT_DISPLAY")

	stnip := os.Getenv("INIT_ADDR")
	stnvhost := os.Getenv("INIT_VHOST")
	stnvguest := os.Getenv("INIT_VGUEST")
	stngateway := os.Getenv("INIT_GATEWAY")

	var config *oz.Config
	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			log.Info("Configuration file (%s) is missing, using defaults.", oz.DefaultConfigPath)
			config = oz.NewDefaultConfig()
		} else {
			log.Error("Could not load configuration: %s", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	p, err := loadProfile(config.ProfileDir, pname)
	if err != nil {
		log.Error("Could not load profile %s: %v", pname, err)
		os.Exit(1)
	}
	uid, err := strconv.Atoi(uidval)
	if err != nil {
		log.Error("Could not parse INIT_UID argument (%s) into an integer: %v", uidval, err)
		os.Exit(1)
	}
	u, err := user.LookupId(uidval)
	if err != nil {
		log.Error("Failed to look up user with uid=%s: %v", uidval, err)
		os.Exit(1)
	}
	gid, err := strconv.Atoi(u.Gid)
	if err != nil {
		log.Error("Failed to parse gid value (%s) from user struct: %v", u.Gid, err)
		os.Exit(1)
	}
	display := 0
	if dispval != "" {
		d, err := strconv.Atoi(dispval)
		if err != nil {
			log.Error("Unable to parse display (%s) into an integer: %v", dispval, err)
			os.Exit(1)
		}
		display = d
	}

	stn := new(network.SandboxNetwork)
	if stnip != "" {
		gateway, _, err := net.ParseCIDR(stngateway)
		if err != nil {
			log.Error("Unable to parse network configuration gateway (%s): %v", stngateway, err)
			os.Exit(1)
		}

		stn.Ip = stnip
		stn.VethHost = stnvhost
		stn.VethGuest = stnvguest
		stn.Gateway = gateway
	}

	env := []string{}
	for _, e := range os.Environ() {
		if strings.HasPrefix(e, EnvPrefix) {
			e = e[len(EnvPrefix):]
			log.Debug("Adding (%s) to launch environment", e)
			env = append(env, e)
		}
	}

	env = append(env, "PATH=/usr/bin:/bin")

	if p.XServer.Enabled {
		env = append(env, "DISPLAY=:"+strconv.Itoa(display))
	}

	return &initState{
		log:       log,
		config:    config,
		sockaddr:  sockaddr,
		launchEnv: env,
		profile:   p,
		children:  make(map[int]*exec.Cmd),
		uid:       uid,
		gid:       gid,
		user:      u,
		display:   display,
		fs:        fs.NewFilesystem(config, log),
		network:   stn,
	}
}
Exemplo n.º 8
0
Arquivo: seccomp.go Projeto: Safe3/oz
func Main() {

	modeptr := flag.String("mode", "whitelist", "Mode: whitelist, blacklist, train")
	policyptr := flag.String("policy", "", "Policy path")

	flag.Parse()

	args := flag.Args()
	cmdArgs := []string{args[0]}

	if len(args) < 1 {
		log.Error("oz-seccomp: no command.")
		os.Exit(1)
	}

	cmd := args[0]
	cmdArgs = args
	fpath := ""

	config, err := oz.LoadConfig(oz.DefaultConfigPath)
	if err != nil {
		if os.IsNotExist(err) {
			log.Info("Configuration file (%s) is missing, using defaults.", oz.DefaultConfigPath)
			config = oz.NewDefaultConfig()
		} else {
			log.Error("Could not load configuration: %s", oz.DefaultConfigPath, err)
			os.Exit(1)
		}
	}

	p := new(oz.Profile)
	if *modeptr != "train" {
		if err := json.NewDecoder(os.Stdin).Decode(&p); err != nil {
			log.Error("unable to decode profile data: %v", err)
			os.Exit(1)
		}
	}

	switch *modeptr {
	case "train":
		if *policyptr == "" {
			fpath = path.Join(config.EtcPrefix, "training-generic.seccomp")
		} else {
			fpath = *policyptr
		}
		filter, err := seccomp.Compile(fpath, false)
		if err != nil {
			log.Error("Seccomp filter compile failed: %v", err)
			os.Exit(1)
		}
		err = seccomp.Install(filter)
		if err != nil {
			log.Error("Error (seccomp): %v", err)
			os.Exit(1)
		}
		err = syscall.Exec(cmd, cmdArgs, os.Environ())
		if err != nil {
			log.Error("Error (exec): %v %s", err, cmd)
			os.Exit(1)
		}
	case "whitelist":
		enforce := true
		fpath := ""
		if p.Seccomp.Mode == oz.PROFILE_SECCOMP_WHITELIST {
			if p.Seccomp.Whitelist == "" {
				log.Error("No seccomp policy file.")
				os.Exit(1)
			}
			fpath = p.Seccomp.Whitelist
			enforce = p.Seccomp.Enforce
		} else if p.Seccomp.Mode == oz.PROFILE_SECCOMP_TRAIN {
			if enforce == true {
				log.Error("Oz profile configured for seccomp enforcement while training. Enforce mode set to false.")
				enforce = false
			}
			fpath = path.Join(config.EtcPrefix, "training-generic.seccomp")
		}
		filter, err := seccomp.Compile(fpath, enforce)
		if err != nil {
			log.Error("Seccomp filter compile failed: %v", err)
			os.Exit(1)
		}
		err = seccomp.Install(filter)
		if err != nil {
			log.Error("Error (seccomp): %v", err)
			os.Exit(1)
		}
		err = syscall.Exec(cmd, cmdArgs, os.Environ())
		if err != nil {
			log.Error("Error (exec): %v %s", err, cmd)
			os.Exit(1)
		}
	case "blacklist":
		if p.Seccomp.Blacklist == "" {
			p.Seccomp.Blacklist = path.Join(config.EtcPrefix, "blacklist-generic.seccomp")
		}
		filter, err := seccomp.CompileBlacklist(p.Seccomp.Blacklist, p.Seccomp.Enforce)
		if err != nil {
			log.Error("Seccomp blacklist filter compile failed: %v", err)
			os.Exit(1)
		}
		err = seccomp.InstallBlacklist(filter)
		if err != nil {
			log.Error("Error (seccomp): %v", err)
			os.Exit(1)
		}
		log.Info("%s %v\n", cmd, cmdArgs)
		err = syscall.Exec(cmd, cmdArgs, os.Environ())
		if err != nil {
			log.Error("Error (exec): %v %s", err, cmd)
			os.Exit(1)
		}
	default:
		fmt.Println("Bad switch.")
		os.Exit(1)
	}

}