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-rw-r--r--main.go222
1 files changed, 0 insertions, 222 deletions
diff --git a/main.go b/main.go
deleted file mode 100644
index ae3974e..0000000
--- a/main.go
+++ /dev/null
@@ -1,222 +0,0 @@
-package main
-
-import (
- "encoding/hex"
- "flag"
- "fmt"
- "io/ioutil"
- "os"
- "path/filepath"
- "runtime"
- "runtime/pprof"
- "time"
-
- "github.com/rfjakob/gocryptfs/cryptfs"
- "github.com/rfjakob/gocryptfs/pathfs_frontend"
-
- "golang.org/x/crypto/ssh/terminal"
-
- "github.com/hanwen/go-fuse/fuse"
- "github.com/hanwen/go-fuse/fuse/nodefs"
- "github.com/hanwen/go-fuse/fuse/pathfs"
-)
-
-const (
- USE_CLUEFS = false // Use cluefs or pathfs FUSE frontend
- USE_OPENSSL = true // 3x speed increase compared to Go's built-in GCM
- 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 main() {
- runtime.GOMAXPROCS(4)
-
- // Parse command line arguments
- var debug, init, zerokey, fusedebug bool
-
- 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")
- var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to 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 init {
- if flag.NArg() != 1 {
- fmt.Printf("usage: %s --init CIPHERDIR\n", PROGRAM_NAME)
- os.Exit(ERREXIT_USAGE)
- }
- initDir(flag.Arg(0))
- }
- if flag.NArg() < 2 {
- fmt.Printf("usage: %s [OPTIONS] CIPHERDIR MOUNTPOINT\n", PROGRAM_NAME)
- 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)
- }
-
- key := make([]byte, cryptfs.KEY_LEN)
- if zerokey {
- fmt.Printf("Zerokey mode active: using all-zero dummy master key.\n")
- fmt.Printf("ZEROKEY MODE PROVIDES NO SECURITY AT ALL AND SHOULD ONLY BE USED FOR TESTING.\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)
- }
- fmt.Printf("Password: ")
- password := readPassword()
- fmt.Printf("\nDecrypting master key... ")
- key, err = cryptfs.LoadConfFile(cfname, password)
- if err != nil {
- fmt.Println(err)
- os.Exit(ERREXIT_LOADCONF)
- }
- fmt.Printf("Success\n")
- printMasterKey(key)
- }
-
- pathfsFrontend(key, cipherdir, mountpoint, fusedebug)
-}
-
-// printMasterKey - remind the user that he should store the master key in
-// a safe place
-func printMasterKey(key []byte) {
- h := hex.EncodeToString(key)
- // Make it less scary by splitting it up in chunks
- h = h[0:8] + "-" + h[8:16] + "-" + h[16:24] + "-" + h[24:32]
-
- fmt.Printf(`
-WARNING:
- If the gocryptfs config file becomes corrupted or you ever
- forget your password, there is only one hope for recovery:
- The master key. Print it to a piece of paper and store it in a drawer.
-
- Master key: %s
-
-`, h)
-}
-
-func readPasswordTwice() string {
- fmt.Printf("Password: ")
- p1 := readPassword()
- fmt.Printf("\nRepeat: ")
- p2 := readPassword()
- fmt.Printf("\n")
- if p1 != p2 {
- fmt.Printf("Passwords do not match\n")
- os.Exit(ERREXIT_PASSWORD)
- }
- return p1
-}
-
-// Get password from terminal
-func readPassword() string {
- fd := int(os.Stdin.Fd())
- p, err := terminal.ReadPassword(fd)
- if err != nil {
- fmt.Printf("Error: Could not read password: %s\n")
- os.Exit(ERREXIT_PASSWORD)
- }
- return string(p)
-}
-
-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) {
-
- finalFs := pathfs_frontend.NewFS(key, cipherdir, USE_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"
-
- state, err := fuse.NewServer(conn.RawFS(), mountpoint, &mOpts)
- if err != nil {
- fmt.Printf("Mount fail: %v\n", err)
- os.Exit(1)
- }
- state.SetDebug(debug)
-
- fmt.Println("Mounted.")
- state.Serve()
-}