From 5dc7e44aa2cb6527b0e2f4e7108c8cbd7c2a72c1 Mon Sep 17 00:00:00 2001 From: Jakob Unterwurzacher Date: Sun, 11 Oct 2015 17:14:18 +0200 Subject: Move main files to top level dir This is in preparation of getting rid of the shell wrapper --- gocryptfs_main/main.go | 233 ------------------------------------------------- 1 file changed, 233 deletions(-) delete mode 100644 gocryptfs_main/main.go (limited to 'gocryptfs_main/main.go') diff --git a/gocryptfs_main/main.go b/gocryptfs_main/main.go deleted file mode 100644 index 912ff72..0000000 --- a/gocryptfs_main/main.go +++ /dev/null @@ -1,233 +0,0 @@ -package main - -import ( - "flag" - "fmt" - "io/ioutil" - "os" - "path/filepath" - "runtime" - "runtime/pprof" - "time" - - "github.com/rfjakob/gocryptfs/cryptfs" - "github.com/rfjakob/gocryptfs/pathfs_frontend" - - "github.com/hanwen/go-fuse/fuse" - "github.com/hanwen/go-fuse/fuse/nodefs" - "github.com/hanwen/go-fuse/fuse/pathfs" -) - -const ( - USE_OPENSSL = true - PATHFS_DEBUG = false - - PROGRAM_NAME = "gocryptfs" - - // Exit codes - ERREXIT_USAGE = 1 - ERREXIT_NEWFS = 2 - ERREXIT_MOUNT = 3 - ERREXIT_SERVE = 4 - ERREXIT_MOUNT2 = 5 - ERREXIT_CIPHERDIR = 6 - ERREXIT_INIT = 7 - ERREXIT_LOADCONF = 8 - ERREXIT_PASSWORD = 9 -) - -func initDir(dirArg string) { - dir, _ := filepath.Abs(dirArg) - - if dirEmpty(dir) == false { - fmt.Printf("Error: Directory \"%s\" is not empty\n", dirArg) - os.Exit(ERREXIT_INIT) - } - - confName := filepath.Join(dir, cryptfs.ConfDefaultName) - fmt.Printf("Choose a password for protecting your files.\n") - password := readPasswordTwice() - err := cryptfs.CreateConfFile(confName, password) - if err != nil { - fmt.Println(err) - os.Exit(ERREXIT_INIT) - } - fmt.Printf("The filesystem is now ready for mounting.\n") - os.Exit(0) -} - -func usageText() { - fmt.Printf("Usage: %s [OPTIONS] CIPHERDIR MOUNTPOINT\n", PROGRAM_NAME) - fmt.Printf("\nOptions:\n") - flag.PrintDefaults() -} - -func main() { - runtime.GOMAXPROCS(4) - - // Parse command line arguments - var debug, init, zerokey, fusedebug, openssl, passwd bool - var masterkey string - - flag.Usage = usageText - flag.BoolVar(&debug, "debug", false, "Enable debug output") - flag.BoolVar(&fusedebug, "fusedebug", false, "Enable fuse library debug output") - flag.BoolVar(&init, "init", false, "Initialize encrypted directory") - flag.BoolVar(&zerokey, "zerokey", false, "Use all-zero dummy master key") - flag.BoolVar(&openssl, "openssl", true, "Use OpenSSL instead of built-in Go crypto") - flag.BoolVar(&passwd, "passwd", false, "Change password") - flag.StringVar(&masterkey, "masterkey", "", "Mount with explicit master key") - var cpuprofile = flag.String("cpuprofile", "", "Write cpu profile to specified file") - - flag.Parse() - if *cpuprofile != "" { - f, err := os.Create(*cpuprofile) - if err != nil { - fmt.Println(err) - os.Exit(ERREXIT_INIT) - } - fmt.Printf("Writing CPU profile to %s\n", *cpuprofile) - pprof.StartCPUProfile(f) - defer pprof.StopCPUProfile() - } - if debug { - cryptfs.Debug.Enable() - cryptfs.Debug.Printf("Debug output enabled\n") - } - if openssl == false { - fmt.Printf("Openssl disabled\n") - } - if init { - if flag.NArg() != 1 { - fmt.Printf("Usage: %s --init CIPHERDIR\n", PROGRAM_NAME) - os.Exit(ERREXIT_USAGE) - } - initDir(flag.Arg(0)) - } else if passwd { - if flag.NArg() != 1 { - fmt.Printf("Usage: %s --passwd CIPHERDIR\n", PROGRAM_NAME) - os.Exit(ERREXIT_USAGE) - } - } else if flag.NArg() < 2 { - usageText() - os.Exit(ERREXIT_USAGE) - } - cipherdir, _ := filepath.Abs(flag.Arg(0)) - mountpoint, _ := filepath.Abs(flag.Arg(1)) - cryptfs.Debug.Printf("cipherdir=%s\nmountpoint=%s\n", cipherdir, mountpoint) - - _, err := os.Stat(cipherdir) - if err != nil { - fmt.Printf("Cipherdir: %s\n", err.Error()) - os.Exit(ERREXIT_CIPHERDIR) - } - - var cf *cryptfs.ConfFile - var currentPassword string - key := make([]byte, cryptfs.KEY_LEN) - if zerokey { - fmt.Printf("Zerokey mode active: using all-zero dummy master key.\n") - } else if len(masterkey) > 0 { - key = parseMasterKey(masterkey) - fmt.Printf("Using explicit master key.\n") - } else { - cfname := filepath.Join(cipherdir, cryptfs.ConfDefaultName) - _, err = os.Stat(cfname) - if err != nil { - fmt.Printf("Error: %s not found in CIPHERDIR\n", cryptfs.ConfDefaultName) - fmt.Printf("Please run \"%s --init %s\" first\n", PROGRAM_NAME, flag.Arg(0)) - os.Exit(ERREXIT_LOADCONF) - } - if passwd == true { - fmt.Printf("Old password: ") - } else { - fmt.Printf("Password: ") - } - currentPassword = readPassword() - fmt.Printf("\nDecrypting master key... ") - cryptfs.Warn.Disable() // Silence DecryptBlock() error messages on incorrect password - key, cf, err = cryptfs.LoadConfFile(cfname, currentPassword) - cryptfs.Warn.Enable() - if err != nil { - fmt.Println(err) - fmt.Println("Password incorrect.") - os.Exit(ERREXIT_LOADCONF) - } - fmt.Printf("done.\n") - } - if passwd == true { - fmt.Printf("Please enter the new password.\n") - newPassword := readPasswordTwice() - if newPassword == currentPassword { - fmt.Printf("New and old passwords are identical\n") - os.Exit(1) - } - cf.EncryptKey(key, newPassword) - err := cf.WriteFile() - if err != nil { - fmt.Println(err) - os.Exit(ERREXIT_INIT) - } - fmt.Printf("Password changed.\n") - os.Exit(0) - } - - srv := pathfsFrontend(key, cipherdir, mountpoint, fusedebug, openssl) - - if zerokey == false && len(masterkey) == 0 { - printMasterKey(key) - } else if zerokey == true { - fmt.Printf("ZEROKEY MODE PROVIDES NO SECURITY AT ALL AND SHOULD ONLY BE USED FOR TESTING.\n") - } else if len(masterkey) > 0 { - fmt.Printf("THE MASTER KEY IS VISIBLE VIA \"ps -auxwww\", ONLY USE THIS MODE FOR EMERGENCIES.\n") - } - - fmt.Println("Filesystem ready.") - // Send notification to our parent - sendSig() - // Jump into server loop - srv.Serve() -} - -func dirEmpty(dir string) bool { - entries, err := ioutil.ReadDir(dir) - if err != nil { - fmt.Println(err) - os.Exit(ERREXIT_CIPHERDIR) - } - if len(entries) == 0 { - return true - } - return false -} - -func pathfsFrontend(key []byte, cipherdir string, mountpoint string, debug bool, openssl bool) *fuse.Server { - - finalFs := pathfs_frontend.NewFS(key, cipherdir, openssl) - pathFsOpts := &pathfs.PathNodeFsOptions{ClientInodes: true} - pathFs := pathfs.NewPathNodeFs(finalFs, pathFsOpts) - fuseOpts := &nodefs.Options{ - // These options are to be compatible with libfuse defaults, - // making benchmarking easier. - NegativeTimeout: time.Second, - AttrTimeout: time.Second, - EntryTimeout: time.Second, - } - conn := nodefs.NewFileSystemConnector(pathFs.Root(), fuseOpts) - var mOpts fuse.MountOptions - mOpts.AllowOther = false - // Set values shown in "df -T" and friends - // First column, "Filesystem" - mOpts.Options = append(mOpts.Options, "fsname="+cipherdir) - // Second column, "Type", will be shown as "fuse." + Name - mOpts.Name = "gocryptfs" - - srv, err := fuse.NewServer(conn.RawFS(), mountpoint, &mOpts) - if err != nil { - fmt.Printf("Mount failed: %v", err) - os.Exit(1) - } - srv.SetDebug(debug) - - return srv -} -- cgit v1.2.3