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package main
import (
"path/filepath"
"flag"
"os"
"fmt"
"github.com/rfjakob/gocryptfs/frontend"
"bazil.org/fuse"
fusefs "bazil.org/fuse/fs"
)
const (
PROGRAM_NAME = "gocryptfs"
USE_OPENSSL = true
ERREXIT_USAGE = 1
ERREXIT_NEWFS = 2
ERREXIT_MOUNT = 3
ERREXIT_SERVE = 4
ERREXIT_MOUNT2 = 5
)
func main() {
// Parse command line arguments
flag.Parse()
if flag.NArg() < 2 {
fmt.Printf("NArg=%d\n", flag.NArg())
fmt.Printf("usage: %s CIPHERDIR MOUNTPOINT\n", PROGRAM_NAME)
os.Exit(ERREXIT_USAGE)
}
cipherdir, _ := filepath.Abs(flag.Arg(0))
mountpoint, err := filepath.Abs(flag.Arg(1))
// Create the file system object
var key [16]byte
cfs, err := frontend.NewFS(key, cipherdir, USE_OPENSSL)
if err != nil {
fmt.Println(err)
os.Exit(ERREXIT_NEWFS)
}
// Mount the file system
mountOpts := []fuse.MountOption{
fuse.FSName(PROGRAM_NAME),
fuse.Subtype(PROGRAM_NAME),
fuse.VolumeName(PROGRAM_NAME),
fuse.LocalVolume(),
fuse.MaxReadahead(1024*1024),
}
conn, err := fuse.Mount(mountpoint, mountOpts...)
if err != nil {
fmt.Println(err)
os.Exit(ERREXIT_MOUNT)
}
defer conn.Close()
// Start serving requests
if err = fusefs.Serve(conn, cfs); err != nil {
fmt.Println(err)
os.Exit(ERREXIT_SERVE)
}
// Check for errors when mounting the file system
<-conn.Ready
if err = conn.MountError; err != nil {
fmt.Println(err)
os.Exit(ERREXIT_MOUNT2)
}
// We are done
os.Exit(0)
}
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